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Comparing Coro/Coro/State.xs (file contents):
Revision 1.215 by root, Sun Oct 14 19:34:09 2007 UTC vs.
Revision 1.223 by root, Wed Feb 13 15:46:00 2008 UTC

72# ifndef IS_PADCONST 72# ifndef IS_PADCONST
73# define IS_PADCONST(v) 0 73# define IS_PADCONST(v) 0
74# endif 74# endif
75#endif 75#endif
76 76
77/* 5.8.8 */
78#ifndef GV_NOTQUAL
79# define GV_NOTQUAL 0
80#endif
81#ifndef newSV
82# define newSV(l) NEWSV(0,l)
83#endif
84
85/* 5.11 */
86#ifndef CxHASARGS
87# define CxHASARGS(cx) (cx)->blk_sub.hasargs
88#endif
89
77/* 5.8.7 */ 90/* 5.8.7 */
78#ifndef SvRV_set 91#ifndef SvRV_set
79# define SvRV_set(s,v) SvRV(s) = (v) 92# define SvRV_set(s,v) SvRV(s) = (v)
80#endif
81
82/* 5.8.8 */
83#ifndef GV_NOTQUAL
84# define GV_NOTQUAL 0
85#endif
86#ifndef newSV
87# define newSV(l) NEWSV(0,l)
88#endif 93#endif
89 94
90#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 95#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
91# undef CORO_STACKGUARD 96# undef CORO_STACKGUARD
92#endif 97#endif
145static size_t coro_stacksize = CORO_STACKSIZE; 150static size_t coro_stacksize = CORO_STACKSIZE;
146static struct CoroAPI coroapi; 151static struct CoroAPI coroapi;
147static AV *main_mainstack; /* used to differentiate between $main and others */ 152static AV *main_mainstack; /* used to differentiate between $main and others */
148static JMPENV *main_top_env; 153static JMPENV *main_top_env;
149static HV *coro_state_stash, *coro_stash; 154static HV *coro_state_stash, *coro_stash;
150static SV *coro_mortal; /* will be freed after next transfer */ 155static volatile SV *coro_mortal; /* will be freed after next transfer */
151 156
152static GV *irsgv; /* $/ */ 157static GV *irsgv; /* $/ */
153static GV *stdoutgv; /* *STDOUT */ 158static GV *stdoutgv; /* *STDOUT */
154static SV *rv_diehook; 159static SV *rv_diehook;
155static SV *rv_warnhook; 160static SV *rv_warnhook;
664 return rss; 669 return rss;
665} 670}
666 671
667/** coroutine stack handling ************************************************/ 672/** coroutine stack handling ************************************************/
668 673
669#if 0
670static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); 674static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
675static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
671 676
672/* 677/*
673 * This overrides the default magic get method of %SIG elements. 678 * This overrides the default magic get method of %SIG elements.
674 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 679 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
675 * and instead of tryign to save and restore the hash elements, we just provide 680 * and instead of tryign to save and restore the hash elements, we just provide
679 * when a schedule happens then, but we ignore this. 684 * when a schedule happens then, but we ignore this.
680 */ 685 */
681static int 686static int
682coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 687coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
683{ 688{
684 return orig_sigelem_get (aTHX_ sv, mg);
685 const char *s = MgPV_nolen_const (mg); 689 const char *s = MgPV_nolen_const (mg);
686 690
687 if (*s == '_') 691 if (*s == '_')
688 { 692 {
689 if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0; 693 if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
690 if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0; 694 if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
691 } 695 }
692 696
693 return orig_sigelem_get (aTHX_ sv, mg); 697 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
694} 698}
695#endif 699
700static int
701coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
702{
703 const char *s = MgPV_nolen_const (mg);
704
705 if (*s == '_')
706 {
707 SV **svp = 0;
708
709 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
710 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
711
712 if (svp)
713 {
714 SV *old = *svp;
715 *svp = newSVsv (sv);
716 SvREFCNT_dec (old);
717 return;
718 }
719 }
720
721 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
722}
696 723
697static void 724static void
698coro_setup (pTHX_ struct coro *coro) 725coro_setup (pTHX_ struct coro *coro)
699{ 726{
700 /* 727 /*
711 PL_localizing = 0; 738 PL_localizing = 0;
712 PL_dirty = 0; 739 PL_dirty = 0;
713 PL_restartop = 0; 740 PL_restartop = 0;
714 741
715 /* recreate the die/warn hooks */ 742 /* recreate the die/warn hooks */
716 PL_diehook = 0; 743 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
717 hv_store (hv_sig, "__DIE__", sizeof ("__DIE__") - 1, newSV (0), 0); 744 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
718 PL_diehook = SvREFCNT_inc (rv_diehook);
719
720 PL_warnhook = 0;
721 hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, newSV (0), 0);
722 PL_warnhook = SvREFCNT_inc (rv_warnhook);
723 745
724 GvSV (PL_defgv) = newSV (0); 746 GvSV (PL_defgv) = newSV (0);
725 GvAV (PL_defgv) = coro->args; coro->args = 0; 747 GvAV (PL_defgv) = coro->args; coro->args = 0;
726 GvSV (PL_errgv) = newSV (0); 748 GvSV (PL_errgv) = newSV (0);
727 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 749 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
878 SAVETMPS; 900 SAVETMPS;
879 EXTEND (SP, 3); 901 EXTEND (SP, 3);
880 PUSHMARK (SP); 902 PUSHMARK (SP);
881 PUSHs (&PL_sv_yes); 903 PUSHs (&PL_sv_yes);
882 PUSHs (fullname); 904 PUSHs (fullname);
883 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 905 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
884 PUTBACK; 906 PUTBACK;
885 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 907 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
886 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 908 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
887 SPAGAIN; 909 SPAGAIN;
888 FREETMPS; 910 FREETMPS;
1106 if (expect_false (next->flags & CF_DESTROYED)) 1128 if (expect_false (next->flags & CF_DESTROYED))
1107 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1129 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1108 1130
1109 if ( 1131 if (
1110#if PERL_VERSION_ATLEAST (5,9,0) 1132#if PERL_VERSION_ATLEAST (5,9,0)
1111 expect_false (PL_parser) 1133 expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING)
1112#else 1134#else
1113 expect_false (PL_lex_state != LEX_NOTPARSING) 1135 expect_false (PL_lex_state != LEX_NOTPARSING)
1114#endif 1136#endif
1115 ) 1137 )
1116 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1138 croak ("Coro::State::transfer called while parsing, but this is not supported");
1120/* always use the TRANSFER macro */ 1142/* always use the TRANSFER macro */
1121static void NOINLINE 1143static void NOINLINE
1122transfer (pTHX_ struct coro *prev, struct coro *next) 1144transfer (pTHX_ struct coro *prev, struct coro *next)
1123{ 1145{
1124 dSTACKLEVEL; 1146 dSTACKLEVEL;
1147 static volatile int has_throw;
1125 1148
1126 /* sometimes transfer is only called to set idle_sp */ 1149 /* sometimes transfer is only called to set idle_sp */
1127 if (expect_false (!next)) 1150 if (expect_false (!next))
1128 { 1151 {
1129 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1152 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1181 ++next->usecount; 1204 ++next->usecount;
1182 1205
1183 if (expect_true (!next->cctx)) 1206 if (expect_true (!next->cctx))
1184 next->cctx = cctx_get (aTHX); 1207 next->cctx = cctx_get (aTHX);
1185 1208
1209 has_throw = !!next->throw;
1210
1186 if (expect_false (prev__cctx != next->cctx)) 1211 if (expect_false (prev__cctx != next->cctx))
1187 { 1212 {
1188 prev__cctx->top_env = PL_top_env; 1213 prev__cctx->top_env = PL_top_env;
1189 PL_top_env = next->cctx->top_env; 1214 PL_top_env = next->cctx->top_env;
1190 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1215 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1191 } 1216 }
1192 1217
1193 free_coro_mortal (aTHX); 1218 free_coro_mortal (aTHX);
1194 UNLOCK; 1219 UNLOCK;
1195 1220
1196 if (expect_false (prev->throw || next->throw)) 1221 if (expect_false (has_throw))
1197 { 1222 {
1198 struct coro *coro = SvSTATE (coro_current); 1223 struct coro *coro = SvSTATE (coro_current);
1199 1224
1200 if (coro->throw) 1225 if (coro->throw)
1201 { 1226 {
1327{ 1352{
1328 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1353 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1329} 1354}
1330 1355
1331static SV * 1356static SV *
1332coro_deq (pTHX_ int min_prio) 1357coro_deq (pTHX)
1333{ 1358{
1334 int prio = PRIO_MAX - PRIO_MIN; 1359 int prio;
1335 1360
1336 min_prio -= PRIO_MIN;
1337 if (min_prio < 0)
1338 min_prio = 0;
1339
1340 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 1361 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1341 if (AvFILLp (coro_ready [prio]) >= 0) 1362 if (AvFILLp (coro_ready [prio]) >= 0)
1342 return av_shift (coro_ready [prio]); 1363 return av_shift (coro_ready [prio]);
1343 1364
1344 return 0; 1365 return 0;
1345} 1366}
1381 SV *prev_sv, *next_sv; 1402 SV *prev_sv, *next_sv;
1382 1403
1383 for (;;) 1404 for (;;)
1384 { 1405 {
1385 LOCK; 1406 LOCK;
1386 next_sv = coro_deq (aTHX_ PRIO_MIN); 1407 next_sv = coro_deq (aTHX);
1387 1408
1388 /* nothing to schedule: call the idle handler */ 1409 /* nothing to schedule: call the idle handler */
1389 if (expect_false (!next_sv)) 1410 if (expect_false (!next_sv))
1390 { 1411 {
1391 dSP; 1412 dSP;
1395 SAVETMPS; 1416 SAVETMPS;
1396 1417
1397 PUSHMARK (SP); 1418 PUSHMARK (SP);
1398 PUTBACK; 1419 PUTBACK;
1399 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1420 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1421 SPAGAIN;
1400 1422
1401 FREETMPS; 1423 FREETMPS;
1402 LEAVE; 1424 LEAVE;
1403 continue; 1425 continue;
1404 } 1426 }
1533#endif 1555#endif
1534 BOOT_PAGESIZE; 1556 BOOT_PAGESIZE;
1535 1557
1536 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 1558 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1537 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 1559 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1538#if 0 1560
1539 orig_sigelem_get = PL_vtbl_sigelem.svt_get; 1561 orig_sigelem_get = PL_vtbl_sigelem.svt_get;
1540 PL_vtbl_sigelem.svt_get = coro_sigelem_get; 1562 PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1541#endif 1563 orig_sigelem_set = PL_vtbl_sigelem.svt_set;
1564 PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1565
1542 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); 1566 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1543 rv_diehook = SvREFCNT_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); 1567 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1544 rv_warnhook = SvREFCNT_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); 1568 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1545 1569
1546 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1570 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1547 1571
1548 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); 1572 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1549 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); 1573 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1604 Coro::cede_notself = 4 1628 Coro::cede_notself = 4
1605 CODE: 1629 CODE:
1606{ 1630{
1607 struct transfer_args ta; 1631 struct transfer_args ta;
1608 1632
1633 PUTBACK;
1609 switch (ix) 1634 switch (ix)
1610 { 1635 {
1611 case 0: 1636 case 0:
1612 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); 1637 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1613 ta.next = 0; 1638 ta.next = 0;
1632 if (!prepare_cede_notself (aTHX_ &ta)) 1657 if (!prepare_cede_notself (aTHX_ &ta))
1633 XSRETURN_EMPTY; 1658 XSRETURN_EMPTY;
1634 1659
1635 break; 1660 break;
1636 } 1661 }
1662 SPAGAIN;
1637 1663
1638 BARRIER; 1664 BARRIER;
1639 PUTBACK; 1665 PUTBACK;
1640 TRANSFER (ta); 1666 TRANSFER (ta);
1641 SPAGAIN; /* might be the sp of a different coroutine now */ 1667 SPAGAIN; /* might be the sp of a different coroutine now */
1699 { 1725 {
1700 struct coro temp; 1726 struct coro temp;
1701 1727
1702 if (!(coro->flags & CF_RUNNING)) 1728 if (!(coro->flags & CF_RUNNING))
1703 { 1729 {
1730 PUTBACK;
1704 save_perl (aTHX_ &temp); 1731 save_perl (aTHX_ &temp);
1705 load_perl (aTHX_ coro); 1732 load_perl (aTHX_ coro);
1706 } 1733 }
1707 1734
1708 { 1735 {
1727 1754
1728 if (!(coro->flags & CF_RUNNING)) 1755 if (!(coro->flags & CF_RUNNING))
1729 { 1756 {
1730 save_perl (aTHX_ coro); 1757 save_perl (aTHX_ coro);
1731 load_perl (aTHX_ &temp); 1758 load_perl (aTHX_ &temp);
1759 SPAGAIN;
1732 } 1760 }
1733 } 1761 }
1734} 1762}
1735 1763
1736SV * 1764SV *
1886 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); 1914 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1887 AV *invoke_av; 1915 AV *invoke_av;
1888 int i, len; 1916 int i, len;
1889 1917
1890 if (!invoke) 1918 if (!invoke)
1919 {
1920 SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1891 croak ("\3async_pool terminate\2\n"); 1921 croak ("\3async_pool terminate\2\n");
1922 }
1892 1923
1893 SvREFCNT_dec (coro->saved_deffh); 1924 SvREFCNT_dec (coro->saved_deffh);
1894 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); 1925 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1895 1926
1896 hv_store (hv, "desc", sizeof ("desc") - 1, 1927 hv_store (hv, "desc", sizeof ("desc") - 1,
1922 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 1953 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1923 coro->saved_deffh = 0; 1954 coro->saved_deffh = 0;
1924 1955
1925 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 1956 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1926 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 1957 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1958 {
1959 SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1927 croak ("\3async_pool terminate\2\n"); 1960 croak ("\3async_pool terminate\2\n");
1961 }
1928 1962
1929 av_clear (GvAV (PL_defgv)); 1963 av_clear (GvAV (PL_defgv));
1930 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 1964 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1931 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 1965 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1932 1966

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