| … | |
… | |
| 152 | # endif |
152 | # endif |
| 153 | #endif |
153 | #endif |
| 154 | |
154 | |
| 155 | static double (*nvtime)(); /* so why doesn't it take void? */ |
155 | static double (*nvtime)(); /* so why doesn't it take void? */ |
| 156 | |
156 | |
|
|
157 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
158 | #define CVf_SLF 0x4000 |
|
|
159 | static OP *pp_slf (pTHX); |
|
|
160 | |
| 157 | static U32 cctx_gen; |
161 | static U32 cctx_gen; |
| 158 | static size_t cctx_stacksize = CORO_STACKSIZE; |
162 | static size_t cctx_stacksize = CORO_STACKSIZE; |
| 159 | static struct CoroAPI coroapi; |
163 | static struct CoroAPI coroapi; |
| 160 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
164 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
| 161 | static JMPENV *main_top_env; |
165 | static JMPENV *main_top_env; |
| … | |
… | |
| 814 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
818 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
| 815 | { |
819 | { |
| 816 | return 0; |
820 | return 0; |
| 817 | } |
821 | } |
| 818 | |
822 | |
|
|
823 | static UNOP coro_setup_op; |
|
|
824 | |
| 819 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
825 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
| 820 | coro_setup (pTHX_ struct coro *coro) |
826 | coro_setup (pTHX_ struct coro *coro) |
| 821 | { |
827 | { |
| 822 | /* |
828 | /* |
| 823 | * emulate part of the perl startup here. |
829 | * emulate part of the perl startup here. |
| … | |
… | |
| 868 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
874 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
| 869 | */ |
875 | */ |
| 870 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
876 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
| 871 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
877 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
| 872 | |
878 | |
|
|
879 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
880 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
881 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
882 | coro_setup_op.op_next = PL_op; |
|
|
883 | |
|
|
884 | PL_op = (OP *)&coro_setup_op; |
|
|
885 | |
|
|
886 | /* copy throw, in case it was set before coro_setup */ |
| 873 | coro_throw = coro->throw; |
887 | coro_throw = coro->throw; |
| 874 | } |
888 | } |
| 875 | |
889 | |
| 876 | static void |
890 | static void |
| 877 | coro_destruct (pTHX_ struct coro *coro) |
891 | coro_destruct (pTHX_ struct coro *coro) |
| … | |
… | |
| 1041 | |
1055 | |
| 1042 | TAINT_NOT; |
1056 | TAINT_NOT; |
| 1043 | return 0; |
1057 | return 0; |
| 1044 | } |
1058 | } |
| 1045 | |
1059 | |
|
|
1060 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1061 | static struct CoroSLF cctx_ssl_frame; |
|
|
1062 | |
| 1046 | static void |
1063 | static void |
| 1047 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1064 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
| 1048 | { |
1065 | { |
| 1049 | ta->prev = (struct coro *)cctx; |
1066 | ta->prev = (struct coro *)cctx_ssl_cctx; |
| 1050 | ta->next = 0; |
1067 | ta->next = 0; |
| 1051 | } |
1068 | } |
| 1052 | |
1069 | |
| 1053 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1070 | static int |
| 1054 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1071 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
| 1055 | /* during execution of a perl program */ |
1072 | { |
| 1056 | /* also initialises PL_top_env */ |
1073 | *frame = cctx_ssl_frame; |
|
|
1074 | |
|
|
1075 | return 0; |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | /* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */ |
| 1057 | static void NOINLINE |
1079 | static void NOINLINE |
| 1058 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1080 | cctx_prepare (pTHX_ coro_cctx *cctx) |
| 1059 | { |
1081 | { |
| 1060 | dSP; |
|
|
| 1061 | UNOP myop; |
|
|
| 1062 | |
|
|
| 1063 | PL_top_env = &PL_start_env; |
1082 | PL_top_env = &PL_start_env; |
| 1064 | |
1083 | |
| 1065 | if (cctx->flags & CC_TRACE) |
1084 | if (cctx->flags & CC_TRACE) |
| 1066 | PL_runops = runops_trace; |
1085 | PL_runops = runops_trace; |
| 1067 | |
1086 | |
| 1068 | Zero (&myop, 1, UNOP); |
1087 | /* we already must be in an SLF call, there is no other valid way |
| 1069 | myop.op_next = PL_op; |
1088 | * that can lead to creation of a new cctx */ |
| 1070 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1089 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1090 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
| 1071 | |
1091 | |
| 1072 | PUSHMARK (SP); |
1092 | cctx_ssl_cctx = cctx; |
| 1073 | EXTEND (SP, 2); |
1093 | cctx_ssl_frame = slf_frame; |
| 1074 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1094 | |
| 1075 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1095 | slf_frame.prepare = slf_prepare_set_stacklevel; |
| 1076 | PUTBACK; |
1096 | slf_frame.check = slf_check_set_stacklevel; |
| 1077 | PL_op = (OP *)&myop; |
|
|
| 1078 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
| 1079 | SPAGAIN; |
|
|
| 1080 | } |
1097 | } |
| 1081 | |
1098 | |
| 1082 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1099 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
| 1083 | INLINE void |
1100 | INLINE void |
| 1084 | transfer_tail (pTHX) |
1101 | transfer_tail (pTHX) |
| … | |
… | |
| 1528 | ENTER; |
1545 | ENTER; |
| 1529 | SAVETMPS; |
1546 | SAVETMPS; |
| 1530 | |
1547 | |
| 1531 | PUSHMARK (SP); |
1548 | PUSHMARK (SP); |
| 1532 | PUTBACK; |
1549 | PUTBACK; |
| 1533 | call_sv (sv_hook, G_DISCARD); |
1550 | call_sv (sv_hook, G_VOID | G_DISCARD); |
| 1534 | SPAGAIN; |
|
|
| 1535 | |
1551 | |
| 1536 | FREETMPS; |
1552 | FREETMPS; |
| 1537 | LEAVE; |
1553 | LEAVE; |
| 1538 | } |
1554 | } |
| 1539 | |
1555 | |
| … | |
… | |
| 1566 | ENTER; |
1582 | ENTER; |
| 1567 | SAVETMPS; |
1583 | SAVETMPS; |
| 1568 | |
1584 | |
| 1569 | PUSHMARK (SP); |
1585 | PUSHMARK (SP); |
| 1570 | PUTBACK; |
1586 | PUTBACK; |
| 1571 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1587 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
| 1572 | SPAGAIN; |
|
|
| 1573 | |
1588 | |
| 1574 | FREETMPS; |
1589 | FREETMPS; |
| 1575 | LEAVE; |
1590 | LEAVE; |
| 1576 | continue; |
1591 | continue; |
| 1577 | } |
1592 | } |
| … | |
… | |
| 1717 | |
1732 | |
| 1718 | RETURNOP (slf_restore.op_first); |
1733 | RETURNOP (slf_restore.op_first); |
| 1719 | } |
1734 | } |
| 1720 | |
1735 | |
| 1721 | static void |
1736 | static void |
| 1722 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
| 1723 | { |
|
|
| 1724 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
| 1725 | } |
|
|
| 1726 | |
|
|
| 1727 | static void |
|
|
| 1728 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
| 1729 | { |
|
|
| 1730 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
| 1731 | |
|
|
| 1732 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
| 1733 | frame->check = slf_check_nop; |
|
|
| 1734 | frame->data = (void *)SvIV (arg [0]); |
|
|
| 1735 | } |
|
|
| 1736 | |
|
|
| 1737 | static void |
|
|
| 1738 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
1737 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
| 1739 | { |
1738 | { |
| 1740 | SV **arg = (SV **)slf_frame.data; |
1739 | SV **arg = (SV **)slf_frame.data; |
| 1741 | |
1740 | |
| 1742 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
1741 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
| … | |
… | |
| 1771 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1770 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
| 1772 | { |
1771 | { |
| 1773 | frame->prepare = prepare_cede_notself; |
1772 | frame->prepare = prepare_cede_notself; |
| 1774 | frame->check = slf_check_nop; |
1773 | frame->check = slf_check_nop; |
| 1775 | } |
1774 | } |
| 1776 | |
|
|
| 1777 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
| 1778 | #define CVf_SLF 0x4000 |
|
|
| 1779 | |
1775 | |
| 1780 | /* |
1776 | /* |
| 1781 | * these not obviously related functions are all rolled into one |
1777 | * these not obviously related functions are all rolled into one |
| 1782 | * function to increase chances that they all will call transfer with the same |
1778 | * function to increase chances that they all will call transfer with the same |
| 1783 | * stack offset |
1779 | * stack offset |
| … | |
… | |
| 1840 | while (slf_frame.check (aTHX_ &slf_frame)); |
1836 | while (slf_frame.check (aTHX_ &slf_frame)); |
| 1841 | |
1837 | |
| 1842 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
1838 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
| 1843 | |
1839 | |
| 1844 | /* return value handling - mostly like entersub */ |
1840 | /* return value handling - mostly like entersub */ |
| 1845 | { |
|
|
| 1846 | dSP; |
|
|
| 1847 | SV **bot = PL_stack_base + checkmark; |
|
|
| 1848 | int gimme = GIMME_V; |
|
|
| 1849 | |
|
|
| 1850 | /* make sure we put something on the stack in scalar context */ |
1841 | /* make sure we put something on the stack in scalar context */ |
| 1851 | if (gimme == G_SCALAR) |
1842 | if (GIMME_V == G_SCALAR) |
| 1852 | { |
1843 | { |
| 1853 | if (sp == bot) |
1844 | dSP; |
| 1854 | XPUSHs (&PL_sv_undef); |
1845 | SV **bot = PL_stack_base + checkmark; |
| 1855 | |
1846 | |
|
|
1847 | if (sp == bot) /* too few, push undef */ |
|
|
1848 | bot [1] = &PL_sv_undef; |
|
|
1849 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
1850 | bot [1] = *sp; |
|
|
1851 | |
| 1856 | SP = bot + 1; |
1852 | SP = bot + 1; |
| 1857 | } |
|
|
| 1858 | |
1853 | |
| 1859 | PUTBACK; |
1854 | PUTBACK; |
| 1860 | } |
1855 | } |
| 1861 | |
1856 | |
| 1862 | /* exception handling */ |
1857 | /* exception handling */ |
| 1863 | if (expect_false (coro_throw)) |
1858 | if (expect_false (coro_throw)) |
| 1864 | { |
1859 | { |
| 1865 | SV *exception = sv_2mortal (coro_throw); |
1860 | SV *exception = sv_2mortal (coro_throw); |
| … | |
… | |
| 2378 | } |
2373 | } |
| 2379 | OUTPUT: |
2374 | OUTPUT: |
| 2380 | RETVAL |
2375 | RETVAL |
| 2381 | |
2376 | |
| 2382 | void |
2377 | void |
| 2383 | _set_stacklevel (...) |
|
|
| 2384 | CODE: |
|
|
| 2385 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
|
|
| 2386 | |
|
|
| 2387 | void |
|
|
| 2388 | transfer (...) |
2378 | transfer (...) |
| 2389 | PROTOTYPE: $$ |
2379 | PROTOTYPE: $$ |
| 2390 | CODE: |
2380 | CODE: |
| 2391 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2381 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
| 2392 | |
2382 | |
| … | |
… | |
| 2841 | else |
2831 | else |
| 2842 | { |
2832 | { |
| 2843 | int i; |
2833 | int i; |
| 2844 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
2834 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
| 2845 | for (i = 1; i <= AvFILLp (av); ++i) |
2835 | for (i = 1; i <= AvFILLp (av); ++i) |
| 2846 | PUSHs (newSVsv (AvARRAY (av)[i])); |
2836 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
| 2847 | } |
2837 | } |
| 2848 | } |
2838 | } |
| 2849 | |
2839 | |
| 2850 | |
2840 | |
| 2851 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2841 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
| … | |
… | |
| 2868 | sv_setsv (sv_activity, &PL_sv_undef); |
2858 | sv_setsv (sv_activity, &PL_sv_undef); |
| 2869 | if (coro_nready >= incede) |
2859 | if (coro_nready >= incede) |
| 2870 | { |
2860 | { |
| 2871 | PUSHMARK (SP); |
2861 | PUSHMARK (SP); |
| 2872 | PUTBACK; |
2862 | PUTBACK; |
| 2873 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
2863 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
| 2874 | SPAGAIN; |
|
|
| 2875 | } |
2864 | } |
| 2876 | |
2865 | |
| 2877 | --incede; |
2866 | --incede; |
| 2878 | } |
2867 | } |
| 2879 | |
2868 | |
