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Comparing Coro/Coro/State.xs (file contents):
Revision 1.262 by root, Mon Nov 10 20:38:19 2008 UTC vs.
Revision 1.264 by root, Fri Nov 14 02:29:09 2008 UTC

… …
46# define BOOT_PAGESIZE (void)0 46# define BOOT_PAGESIZE (void)0
47#endif 47#endif
48 48
49#if CORO_USE_VALGRIND 49#if CORO_USE_VALGRIND
50# include <valgrind/valgrind.h> 50# include <valgrind/valgrind.h>
51# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
52#else
53# define REGISTER_STACK(cctx,start,end)
54#endif 51#endif
55 52
56/* the maximum number of idle cctx that will be pooled */ 53/* the maximum number of idle cctx that will be pooled */
57static int cctx_max_idle = 4; 54static int cctx_max_idle = 4;
58 55
… …
126 123
127#define IN_DESTRUCT (PL_main_cv == Nullcv) 124#define IN_DESTRUCT (PL_main_cv == Nullcv)
128 125
129#if __GNUC__ >= 3 126#if __GNUC__ >= 3
130# define attribute(x) __attribute__(x) 127# define attribute(x) __attribute__(x)
131# define BARRIER __asm__ __volatile__ ("" : : : "memory")
132# define expect(expr,value) __builtin_expect ((expr),(value)) 128# define expect(expr,value) __builtin_expect ((expr),(value))
129# define INLINE static inline
133#else 130#else
134# define attribute(x) 131# define attribute(x)
135# define BARRIER
136# define expect(expr,value) (expr) 132# define expect(expr,value) (expr)
133# define INLINE static
137#endif 134#endif
138 135
139#define expect_false(expr) expect ((expr) != 0, 0) 136#define expect_false(expr) expect ((expr) != 0, 0)
140#define expect_true(expr) expect ((expr) != 0, 1) 137#define expect_true(expr) expect ((expr) != 0, 1)
141 138
… …
413 : 0 410 : 0
414 411
415#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 412#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) 413#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
417 414
418static struct coro * 415INLINE struct coro *
419SvSTATE_ (pTHX_ SV *coro) 416SvSTATE_ (pTHX_ SV *coro)
420{ 417{
421 HV *stash; 418 HV *stash;
422 MAGIC *mg; 419 MAGIC *mg;
423 420
… …
727#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ 724#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
728 SvPV_nolen((SV*)((mg)->mg_ptr)) : \ 725 SvPV_nolen((SV*)((mg)->mg_ptr)) : \
729 (const char*)(mg)->mg_ptr) 726 (const char*)(mg)->mg_ptr)
730#endif 727#endif
731 728
729/* we sometimes need to create the effect of entersub calling us */
730#define SSL_HEAD (void)0
731/* we somtimes need to create the effect of leaving via entersub */
732#define SSL_TAIL (void)0
733
732/* 734/*
733 * This overrides the default magic get method of %SIG elements. 735 * This overrides the default magic get method of %SIG elements.
734 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 736 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
735 * and instead of tryign to save and restore the hash elements, we just provide 737 * and instead of tryign to save and restore the hash elements, we just provide
736 * readback here. 738 * readback here.
… …
859 /* this newly created coroutine might be run on an existing cctx which most 861 /* this newly created coroutine might be run on an existing cctx which most
860 * likely was suspended in set_stacklevel, called from entersub. 862 * likely was suspended in set_stacklevel, called from entersub.
861 * set_stacklevel doesn't do anything on return, but entersub does LEAVE, 863 * set_stacklevel doesn't do anything on return, but entersub does LEAVE,
862 * so we ENTER here for symmetry. 864 * so we ENTER here for symmetry.
863 */ 865 */
864 ENTER; 866 SSL_HEAD;
865} 867}
866 868
867static void 869static void
868coro_destruct (pTHX_ struct coro *coro) 870coro_destruct (pTHX_ struct coro *coro)
869{ 871{
… …
898 SvREFCNT_dec (coro->throw); 900 SvREFCNT_dec (coro->throw);
899 901
900 coro_destruct_stacks (aTHX); 902 coro_destruct_stacks (aTHX);
901} 903}
902 904
903static void 905INLINE void
904free_coro_mortal (pTHX) 906free_coro_mortal (pTHX)
905{ 907{
906 if (expect_true (coro_mortal)) 908 if (expect_true (coro_mortal))
907 { 909 {
908 SvREFCNT_dec (coro_mortal); 910 SvREFCNT_dec (coro_mortal);
… …
1069 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1071 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1070 SPAGAIN; 1072 SPAGAIN;
1071} 1073}
1072 1074
1073/* the tail of transfer: execute stuff we can only do after a transfer */ 1075/* the tail of transfer: execute stuff we can only do after a transfer */
1074static void 1076INLINE void
1075transfer_tail (pTHX) 1077transfer_tail (pTHX)
1076{ 1078{
1077 struct coro *next = (struct coro *)transfer_next; 1079 struct coro *next = (struct coro *)transfer_next;
1078 transfer_next = 0; //D for temporary assertion in transfer 1080 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1079 assert (("FATAL ERROR: internal error 1067 in Coro module, please report", next));//D 1081 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1080 1082
1081 free_coro_mortal (aTHX); 1083 free_coro_mortal (aTHX);
1082 UNLOCK; 1084 UNLOCK;
1083 1085
1084 if (expect_false (next->throw)) 1086 if (expect_false (next->throw))
… …
1104#endif 1106#endif
1105 { 1107 {
1106 dTHX; 1108 dTHX;
1107 1109
1108 /* entersub called ENTER, but we never 'returned', undo that here */ 1110 /* entersub called ENTER, but we never 'returned', undo that here */
1109 LEAVE; 1111 SSL_TAIL;
1110 1112
1111 /* we now skip the entersub that did lead to transfer() */ 1113 /* we now skip the op that did lead to transfer() */
1112 PL_op = PL_op->op_next; 1114 PL_op = PL_op->op_next;
1113 1115
1114 /* inject a fake subroutine call to cctx_init */ 1116 /* inject a fake subroutine call to cctx_init */
1115 cctx_prepare (aTHX_ (coro_cctx *)arg); 1117 cctx_prepare (aTHX_ (coro_cctx *)arg);
1116 1118
… …
1173 /* mmap supposedly does allocate-on-write for us */ 1175 /* mmap supposedly does allocate-on-write for us */
1174 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1176 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1175 1177
1176 if (cctx->sptr != (void *)-1) 1178 if (cctx->sptr != (void *)-1)
1177 { 1179 {
1178# if CORO_STACKGUARD 1180 #if CORO_STACKGUARD
1179 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1181 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1180# endif 1182 #endif
1181 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1183 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1182 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1184 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1183 cctx->flags |= CC_MAPPED; 1185 cctx->flags |= CC_MAPPED;
1184 } 1186 }
1185 else 1187 else
1186#endif 1188#endif
1187 { 1189 {
1188 cctx->ssize = cctx_stacksize * (long)sizeof (long); 1190 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1189 New (0, cctx->sptr, cctx_stacksize, long); 1191 New (0, cctx->sptr, cctx_stacksize, long);
1190 1192
1191 if (!cctx->sptr) 1193 if (!cctx->sptr)
1192 { 1194 {
1193 perror ("FATAL: unable to allocate stack for coroutine"); 1195 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1194 _exit (EXIT_FAILURE); 1196 _exit (EXIT_FAILURE);
1195 } 1197 }
1196 1198
1197 stack_start = cctx->sptr; 1199 stack_start = cctx->sptr;
1198 stack_size = cctx->ssize; 1200 stack_size = cctx->ssize;
1199 } 1201 }
1200 1202
1201 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1203 #if CORO_USE_VALGRIND
1204 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1205 #endif
1206
1202 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1207 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1203 1208
1204 return cctx; 1209 return cctx;
1205} 1210}
1206 1211
… …
1214 coro_destroy (&cctx->cctx); 1219 coro_destroy (&cctx->cctx);
1215 1220
1216 /* coro_transfer creates new, empty cctx's */ 1221 /* coro_transfer creates new, empty cctx's */
1217 if (cctx->sptr) 1222 if (cctx->sptr)
1218 { 1223 {
1219#if CORO_USE_VALGRIND 1224 #if CORO_USE_VALGRIND
1220 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1225 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1221#endif 1226 #endif
1222 1227
1223#if HAVE_MMAP 1228#if HAVE_MMAP
1224 if (cctx->flags & CC_MAPPED) 1229 if (cctx->flags & CC_MAPPED)
1225 munmap (cctx->sptr, cctx->ssize); 1230 munmap (cctx->sptr, cctx->ssize);
1226 else 1231 else
… …
1253} 1258}
1254 1259
1255static void 1260static void
1256cctx_put (coro_cctx *cctx) 1261cctx_put (coro_cctx *cctx)
1257{ 1262{
1258 assert (("cctx_put called on non-initialised cctx", cctx->sptr)); 1263 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1259 1264
1260 /* free another cctx if overlimit */ 1265 /* free another cctx if overlimit */
1261 if (expect_false (cctx_idle >= cctx_max_idle)) 1266 if (expect_false (cctx_idle >= cctx_max_idle))
1262 { 1267 {
1263 coro_cctx *first = cctx_first; 1268 coro_cctx *first = cctx_first;
… …
1345 && !(prev__cctx->flags & CC_TRACE) 1350 && !(prev__cctx->flags & CC_TRACE)
1346 && !force_cctx 1351 && !force_cctx
1347 )) 1352 ))
1348 { 1353 {
1349 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1354 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1350 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1355 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1351 1356
1352 prev->cctx = 0; 1357 prev->cctx = 0;
1353 1358
1354 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1359 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1355 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1360 /* without this the next cctx_get might destroy the prev__cctx while still in use */
… …
1363 ++next->usecount; 1368 ++next->usecount;
1364 1369
1365 if (expect_true (!next->cctx)) 1370 if (expect_true (!next->cctx))
1366 next->cctx = cctx_get (aTHX); 1371 next->cctx = cctx_get (aTHX);
1367 1372
1368 assert (("FATAL ERROR: internal error 1352 in Coro, please report", !transfer_next));//D 1373 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1369 transfer_next = next; 1374 transfer_next = next;
1370 1375
1371 if (expect_false (prev__cctx != next->cctx)) 1376 if (expect_false (prev__cctx != next->cctx))
1372 { 1377 {
1373 prev__cctx->top_env = PL_top_env; 1378 prev__cctx->top_env = PL_top_env;
… …
1558 1563
1559static int 1564static int
1560api_is_ready (SV *coro_sv) 1565api_is_ready (SV *coro_sv)
1561{ 1566{
1562 dTHX; 1567 dTHX;
1568
1563 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1569 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1564} 1570}
1565 1571
1566static void 1572INLINE void
1567prepare_schedule (pTHX_ struct transfer_args *ta) 1573prepare_schedule (pTHX_ struct transfer_args *ta)
1568{ 1574{
1569 SV *prev_sv, *next_sv; 1575 SV *prev_sv, *next_sv;
1570 1576
1571 for (;;) 1577 for (;;)
… …
1610 1616
1611 /* free this only after the transfer */ 1617 /* free this only after the transfer */
1612 prev_sv = SvRV (coro_current); 1618 prev_sv = SvRV (coro_current);
1613 ta->prev = SvSTATE (prev_sv); 1619 ta->prev = SvSTATE (prev_sv);
1614 TRANSFER_CHECK (*ta); 1620 TRANSFER_CHECK (*ta);
1615 assert (ta->next->flags & CF_READY); 1621 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1616 ta->next->flags &= ~CF_READY; 1622 ta->next->flags &= ~CF_READY;
1617 SvRV_set (coro_current, next_sv); 1623 SvRV_set (coro_current, next_sv);
1618 1624
1619 LOCK; 1625 LOCK;
1620 free_coro_mortal (aTHX); 1626 free_coro_mortal (aTHX);
1621 coro_mortal = prev_sv; 1627 coro_mortal = prev_sv;
1622 UNLOCK; 1628 UNLOCK;
1623} 1629}
1624 1630
1625static void 1631INLINE void
1626prepare_cede (pTHX_ struct transfer_args *ta) 1632prepare_cede (pTHX_ struct transfer_args *ta)
1627{ 1633{
1628 api_ready (coro_current); 1634 api_ready (coro_current);
1629 prepare_schedule (aTHX_ ta); 1635 prepare_schedule (aTHX_ ta);
1630} 1636}
… …
1802 PerlIOBuf_get_ptr, 1808 PerlIOBuf_get_ptr,
1803 PerlIOBuf_get_cnt, 1809 PerlIOBuf_get_cnt,
1804 PerlIOBuf_set_ptrcnt, 1810 PerlIOBuf_set_ptrcnt,
1805}; 1811};
1806 1812
1813/*****************************************************************************/
1814
1815static const CV *ssl_cv; /* for quick consistency check */
1816
1817static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
1818static SV *ssl_arg0;
1819static SV *ssl_arg1;
1820
1821/* this restores the stack in the case we patched the entersub, to */
1822/* recreate the stack frame as perl will on following calls */
1823/* since entersub cleared the stack */
1824static OP *
1825pp_restore (pTHX)
1826{
1827 dSP;
1828
1829 PUSHMARK (SP);
1830
1831 EXTEND (SP, 3);
1832 if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
1833 if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
1834 PUSHs ((SV *)CvGV (ssl_cv));
1835
1836 RETURNOP (ssl_restore.op_first);
1837}
1838
1839/* declare prototype */
1840XS(XS_Coro__State__set_stacklevel);
1841
1842static OP *
1843pp_set_stacklevel (pTHX)
1844{
1845 dSP;
1846 struct transfer_args ta;
1847 SV **arg = PL_stack_base + TOPMARK + 1;
1848 int items = SP - arg; /* args without function object */
1849
1850 /* do a quick consistency check on the "function" object, and if it isn't */
1851 /* for us, divert to the real entersub */
1852 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1853 return PL_ppaddr[OP_ENTERSUB](aTHX);
1854
1855 /* pop args */
1856 SP = PL_stack_base + POPMARK;
1857
1858 if (!(PL_op->op_flags & OPf_STACKED))
1859 {
1860 /* ampersand-form of call, use @_ instead of stack */
1861 AV *av = GvAV (PL_defgv);
1862 arg = AvARRAY (av);
1863 items = AvFILLp (av) + 1;
1864 }
1865
1866 PUTBACK;
1867 switch (PL_op->op_private & 7)
1868 {
1869 case 0:
1870 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1871 break;
1872
1873 case 1:
1874 if (items != 2)
1875 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1876
1877 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1878 break;
1879
1880 case 2:
1881 prepare_schedule (aTHX_ &ta);
1882 break;
1883
1884 case 3:
1885 prepare_cede (aTHX_ &ta);
1886 break;
1887
1888 case 4:
1889 if (!prepare_cede_notself (aTHX_ &ta))
1890 RETURN;
1891
1892 break;
1893 }
1894
1895 TRANSFER (ta, 0);
1896 SPAGAIN;
1897
1898skip:
1899
1900 RETURN;
1901}
1807 1902
1808MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 1903MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1809 1904
1810PROTOTYPES: DISABLE 1905PROTOTYPES: DISABLE
1811
1812BOOT:
1813{
1814#ifdef USE_ITHREADS
1815 MUTEX_INIT (&coro_lock);
1816# if CORO_PTHREAD
1817 coro_thx = PERL_GET_CONTEXT;
1818# endif
1819#endif
1820 BOOT_PAGESIZE;
1821
1822 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1823 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1824
1825 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1826 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1827 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1828
1829 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1830 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1831 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1832
1833 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1834
1835 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1836 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1837 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1838 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1839
1840 main_mainstack = PL_mainstack;
1841 main_top_env = PL_top_env;
1842
1843 while (main_top_env->je_prev)
1844 main_top_env = main_top_env->je_prev;
1845
1846 coroapi.ver = CORO_API_VERSION;
1847 coroapi.rev = CORO_API_REVISION;
1848 coroapi.transfer = api_transfer;
1849
1850 {
1851 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1852
1853 if (!svp) croak ("Time::HiRes is required");
1854 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1855
1856 nvtime = INT2PTR (double (*)(), SvIV (*svp));
1857 }
1858
1859 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1860}
1861
1862SV *
1863new (char *klass, ...)
1864 CODE:
1865{
1866 struct coro *coro;
1867 MAGIC *mg;
1868 HV *hv;
1869 int i;
1870
1871 Newz (0, coro, 1, struct coro);
1872 coro->args = newAV ();
1873 coro->flags = CF_NEW;
1874
1875 if (coro_first) coro_first->prev = coro;
1876 coro->next = coro_first;
1877 coro_first = coro;
1878
1879 coro->hv = hv = newHV ();
1880 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
1881 mg->mg_flags |= MGf_DUP;
1882 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1883
1884 av_extend (coro->args, items - 1);
1885 for (i = 1; i < items; i++)
1886 av_push (coro->args, newSVsv (ST (i)));
1887}
1888 OUTPUT:
1889 RETVAL
1890 1906
1891# these not obviously related functions are all rolled into the same xs 1907# these not obviously related functions are all rolled into the same xs
1892# function to increase chances that they all will call transfer with the same 1908# function to increase chances that they all will call transfer with the same
1893# stack offset 1909# stack offset
1894void 1910void
… …
1898 Coro::schedule = 2 1914 Coro::schedule = 2
1899 Coro::cede = 3 1915 Coro::cede = 3
1900 Coro::cede_notself = 4 1916 Coro::cede_notself = 4
1901 CODE: 1917 CODE:
1902{ 1918{
1903 struct transfer_args ta; 1919 assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1904 1920
1905 PUTBACK; 1921 /* we patch the op, and then re-run the whole call */
1906 switch (ix) 1922 /* we have to put some dummy argument on the stack for this to work */
1923 /* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
1924 ssl_restore.op_next = (OP *)&ssl_restore;
1925 ssl_restore.op_type = OP_NULL;
1926 ssl_restore.op_ppaddr = pp_restore;
1927 ssl_restore.op_first = PL_op;
1928
1929 ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
1930 ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
1931
1932 PL_op->op_ppaddr = pp_set_stacklevel;
1933 PL_op->op_private = PL_op->op_private & ~7 | ix; /* we potentially share our private flags with entersub */
1934
1935 PL_op = (OP *)&ssl_restore;
1936}
1937
1938BOOT:
1939{
1940#ifdef USE_ITHREADS
1941 MUTEX_INIT (&coro_lock);
1942# if CORO_PTHREAD
1943 coro_thx = PERL_GET_CONTEXT;
1944# endif
1945#endif
1946 BOOT_PAGESIZE;
1947
1948 ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
1949
1950 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1951 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1952
1953 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1954 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1955 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1956
1957 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1958 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1959 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1960
1961 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1962
1963 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1964 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1965 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1966 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1967
1968 main_mainstack = PL_mainstack;
1969 main_top_env = PL_top_env;
1970
1971 while (main_top_env->je_prev)
1972 main_top_env = main_top_env->je_prev;
1973
1974 coroapi.ver = CORO_API_VERSION;
1975 coroapi.rev = CORO_API_REVISION;
1976 coroapi.transfer = api_transfer;
1977
1907 { 1978 {
1908 case 0: 1979 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1909 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (ST (0)));
1910 break;
1911 1980
1912 case 1: 1981 if (!svp) croak ("Time::HiRes is required");
1913 if (items != 2) 1982 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1914 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1915 1983
1916 prepare_transfer (aTHX_ &ta, ST (0), ST (1)); 1984 nvtime = INT2PTR (double (*)(), SvIV (*svp));
1917 break;
1918
1919 case 2:
1920 prepare_schedule (aTHX_ &ta);
1921 break;
1922
1923 case 3:
1924 prepare_cede (aTHX_ &ta);
1925 break;
1926
1927 case 4:
1928 if (!prepare_cede_notself (aTHX_ &ta))
1929 XSRETURN_EMPTY;
1930
1931 break;
1932 } 1985 }
1933 SPAGAIN;
1934 1986
1935 BARRIER; 1987 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1936 PUTBACK;
1937 TRANSFER (ta, 0);
1938 SPAGAIN; /* might be the sp of a different coroutine now */
1939 /* be extra careful not to ever do anything after TRANSFER */
1940} 1988}
1989
1990SV *
1991new (char *klass, ...)
1992 CODE:
1993{
1994 struct coro *coro;
1995 MAGIC *mg;
1996 HV *hv;
1997 int i;
1998
1999 Newz (0, coro, 1, struct coro);
2000 coro->args = newAV ();
2001 coro->flags = CF_NEW;
2002
2003 if (coro_first) coro_first->prev = coro;
2004 coro->next = coro_first;
2005 coro_first = coro;
2006
2007 coro->hv = hv = newHV ();
2008 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2009 mg->mg_flags |= MGf_DUP;
2010 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2011
2012 av_extend (coro->args, items - 1);
2013 for (i = 1; i < items; i++)
2014 av_push (coro->args, newSVsv (ST (i)));
2015}
2016 OUTPUT:
2017 RETVAL
1941 2018
1942bool 2019bool
1943_destroy (SV *coro_sv) 2020_destroy (SV *coro_sv)
1944 CODE: 2021 CODE:
1945 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2022 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
2142 2219
2143 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 2220 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2144 coro_ready[i] = newAV (); 2221 coro_ready[i] = newAV ();
2145 2222
2146 { 2223 {
2147 SV *sv = perl_get_sv ("Coro::API", TRUE); 2224 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2148 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
2149 2225
2150 coroapi.schedule = api_schedule; 2226 coroapi.schedule = api_schedule;
2151 coroapi.cede = api_cede; 2227 coroapi.cede = api_cede;
2152 coroapi.cede_notself = api_cede_notself; 2228 coroapi.cede_notself = api_cede_notself;
2153 coroapi.ready = api_ready; 2229 coroapi.ready = api_ready;
… …
2421 2497
2422MODULE = Coro::State PACKAGE = PerlIO::cede 2498MODULE = Coro::State PACKAGE = PerlIO::cede
2423 2499
2424BOOT: 2500BOOT:
2425 PerlIO_define_layer (aTHX_ &PerlIO_cede); 2501 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2502

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