… | |
… | |
147 | # if CORO_PTHREAD |
147 | # if CORO_PTHREAD |
148 | static void *coro_thx; |
148 | static void *coro_thx; |
149 | # endif |
149 | # endif |
150 | #endif |
150 | #endif |
151 | |
151 | |
152 | /* helper storage struct for Coro::AIO */ |
|
|
153 | struct io_state |
|
|
154 | { |
|
|
155 | AV *res; |
|
|
156 | int errorno; |
|
|
157 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
158 | int laststatval; |
|
|
159 | Stat_t statcache; |
|
|
160 | }; |
|
|
161 | |
|
|
162 | static double (*nvtime)(); /* so why doesn't it take void? */ |
152 | static double (*nvtime)(); /* so why doesn't it take void? */ |
163 | |
153 | |
164 | static U32 cctx_gen; |
154 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
155 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
156 | static struct CoroAPI coroapi; |
… | |
… | |
384 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
374 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
385 | |
375 | |
386 | return 0; |
376 | return 0; |
387 | } |
377 | } |
388 | |
378 | |
389 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
379 | #define CORO_MAGIC_type_cv 26 |
390 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
380 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
391 | |
381 | |
392 | static MGVTBL coro_cv_vtbl = { |
382 | static MGVTBL coro_cv_vtbl = { |
393 | 0, 0, 0, 0, |
383 | 0, 0, 0, 0, |
394 | coro_cv_free |
384 | coro_cv_free |
395 | }; |
385 | }; |
396 | |
386 | |
|
|
387 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
388 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
389 | ? SvMAGIC (sv) \ |
|
|
390 | : mg_find (sv, type)) |
|
|
391 | |
397 | #define CORO_MAGIC(sv, type) \ |
392 | #define CORO_MAGIC(sv, type) \ |
398 | expect_true (SvMAGIC (sv)) \ |
393 | (expect_true (SvMAGIC (sv)) \ |
399 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
394 | ? CORO_MAGIC_NN (sv, type) \ |
400 | ? SvMAGIC (sv) \ |
|
|
401 | : mg_find (sv, type) \ |
|
|
402 | : 0 |
395 | : 0) |
403 | |
396 | |
404 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
397 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
405 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
398 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
406 | |
399 | |
407 | INLINE struct coro * |
400 | INLINE struct coro * |
408 | SvSTATE_ (pTHX_ SV *coro) |
401 | SvSTATE_ (pTHX_ SV *coro) |
409 | { |
402 | { |
410 | HV *stash; |
403 | HV *stash; |
… | |
… | |
428 | return (struct coro *)mg->mg_ptr; |
421 | return (struct coro *)mg->mg_ptr; |
429 | } |
422 | } |
430 | |
423 | |
431 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
424 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
432 | |
425 | |
433 | /* fastert than SvSTATE, but expects a coroutine hv */ |
426 | /* faster than SvSTATE, but expects a coroutine hv */ |
434 | INLINE struct coro * |
427 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
435 | SvSTATE_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)) |
428 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
445 | |
429 | |
446 | /* the next two functions merely cache the padlists */ |
430 | /* the next two functions merely cache the padlists */ |
447 | static void |
431 | static void |
448 | get_padlist (pTHX_ CV *cv) |
432 | get_padlist (pTHX_ CV *cv) |
… | |
… | |
1697 | if (coro->flags & CF_RUNNING) |
1681 | if (coro->flags & CF_RUNNING) |
1698 | PL_runops = RUNOPS_DEFAULT; |
1682 | PL_runops = RUNOPS_DEFAULT; |
1699 | else |
1683 | else |
1700 | coro->slot->runops = RUNOPS_DEFAULT; |
1684 | coro->slot->runops = RUNOPS_DEFAULT; |
1701 | } |
1685 | } |
|
|
1686 | } |
|
|
1687 | |
|
|
1688 | /*****************************************************************************/ |
|
|
1689 | /* schedule-like-function opcode (SLF) */ |
|
|
1690 | |
|
|
1691 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1692 | static const CV *slf_cv; |
|
|
1693 | static SV **slf_argv; |
|
|
1694 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1695 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1696 | |
|
|
1697 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1698 | /* recreate the stack frame as perl will on following calls */ |
|
|
1699 | /* since entersub cleared the stack */ |
|
|
1700 | static OP * |
|
|
1701 | pp_restore (pTHX) |
|
|
1702 | { |
|
|
1703 | int i; |
|
|
1704 | SV **SP = PL_stack_base + slf_ax; |
|
|
1705 | |
|
|
1706 | PUSHMARK (SP); |
|
|
1707 | |
|
|
1708 | EXTEND (SP, slf_argc + 1); |
|
|
1709 | |
|
|
1710 | for (i = 0; i < slf_argc; ++i) |
|
|
1711 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1712 | |
|
|
1713 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1714 | |
|
|
1715 | RETURNOP (slf_restore.op_first); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | static void |
|
|
1719 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1720 | { |
|
|
1721 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1722 | } |
|
|
1723 | |
|
|
1724 | static void |
|
|
1725 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1726 | { |
|
|
1727 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1728 | |
|
|
1729 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1730 | frame->check = slf_check_nop; |
|
|
1731 | frame->data = (void *)SvIV (arg [0]); |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | static void |
|
|
1735 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1736 | { |
|
|
1737 | SV **arg = (SV **)slf_frame.data; |
|
|
1738 | |
|
|
1739 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1740 | } |
|
|
1741 | |
|
|
1742 | static void |
|
|
1743 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1744 | { |
|
|
1745 | if (items != 2) |
|
|
1746 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1747 | |
|
|
1748 | frame->prepare = slf_prepare_transfer; |
|
|
1749 | frame->check = slf_check_nop; |
|
|
1750 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1751 | } |
|
|
1752 | |
|
|
1753 | static void |
|
|
1754 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1755 | { |
|
|
1756 | frame->prepare = prepare_schedule; |
|
|
1757 | frame->check = slf_check_nop; |
|
|
1758 | } |
|
|
1759 | |
|
|
1760 | static void |
|
|
1761 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1762 | { |
|
|
1763 | frame->prepare = prepare_cede; |
|
|
1764 | frame->check = slf_check_nop; |
|
|
1765 | } |
|
|
1766 | |
|
|
1767 | static void |
|
|
1768 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1769 | { |
|
|
1770 | frame->prepare = prepare_cede_notself; |
|
|
1771 | frame->check = slf_check_nop; |
|
|
1772 | } |
|
|
1773 | |
|
|
1774 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1775 | #define CVf_SLF 0x4000 |
|
|
1776 | |
|
|
1777 | /* |
|
|
1778 | * these not obviously related functions are all rolled into one |
|
|
1779 | * function to increase chances that they all will call transfer with the same |
|
|
1780 | * stack offset |
|
|
1781 | * SLF stands for "schedule-like-function". |
|
|
1782 | */ |
|
|
1783 | static OP * |
|
|
1784 | pp_slf (pTHX) |
|
|
1785 | { |
|
|
1786 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1787 | |
|
|
1788 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1789 | /* the latter happens when a new coro has been started */ |
|
|
1790 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1791 | if (expect_true (!slf_frame.prepare)) |
|
|
1792 | { |
|
|
1793 | /* first iteration */ |
|
|
1794 | dSP; |
|
|
1795 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1796 | int items = SP - arg; /* args without function object */ |
|
|
1797 | SV *gv = *sp; |
|
|
1798 | |
|
|
1799 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1800 | /* for us, divert to the real entersub */ |
|
|
1801 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1802 | || !GvCV (gv) |
|
|
1803 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1804 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1805 | |
|
|
1806 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1807 | { |
|
|
1808 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1809 | AV *av = GvAV (PL_defgv); |
|
|
1810 | arg = AvARRAY (av); |
|
|
1811 | items = AvFILLp (av) + 1; |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1815 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1816 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1817 | |
|
|
1818 | /* pop args */ |
|
|
1819 | SP = PL_stack_base + POPMARK; |
|
|
1820 | |
|
|
1821 | PUTBACK; |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | /* now that we have a slf_frame, interpret it! */ |
|
|
1825 | /* we use a callback system not to make the code needlessly */ |
|
|
1826 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1827 | |
|
|
1828 | do |
|
|
1829 | { |
|
|
1830 | struct coro_transfer_args ta; |
|
|
1831 | |
|
|
1832 | slf_frame.prepare (aTHX_ &ta); |
|
|
1833 | TRANSFER (ta, 0); |
|
|
1834 | |
|
|
1835 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1836 | } |
|
|
1837 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1838 | |
|
|
1839 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1840 | |
|
|
1841 | /* return value handling - mostly like entersub */ |
|
|
1842 | { |
|
|
1843 | dSP; |
|
|
1844 | SV **bot = PL_stack_base + checkmark; |
|
|
1845 | int gimme = GIMME_V; |
|
|
1846 | |
|
|
1847 | /* make sure we put something on the stack in scalar context */ |
|
|
1848 | if (gimme == G_SCALAR) |
|
|
1849 | { |
|
|
1850 | if (sp == bot) |
|
|
1851 | XPUSHs (&PL_sv_undef); |
|
|
1852 | |
|
|
1853 | SP = bot + 1; |
|
|
1854 | } |
|
|
1855 | |
|
|
1856 | PUTBACK; |
|
|
1857 | } |
|
|
1858 | |
|
|
1859 | /* exception handling */ |
|
|
1860 | if (expect_false (coro_throw)) |
|
|
1861 | { |
|
|
1862 | SV *exception = sv_2mortal (coro_throw); |
|
|
1863 | |
|
|
1864 | coro_throw = 0; |
|
|
1865 | sv_setsv (ERRSV, exception); |
|
|
1866 | croak (0); |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | return NORMAL; |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | static void |
|
|
1873 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1874 | { |
|
|
1875 | int i; |
|
|
1876 | SV **arg = PL_stack_base + ax; |
|
|
1877 | int items = PL_stack_sp - arg + 1; |
|
|
1878 | |
|
|
1879 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1880 | |
|
|
1881 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1882 | && PL_op->op_ppaddr != pp_slf) |
|
|
1883 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1884 | |
|
|
1885 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1886 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1887 | slf_cv = cv; |
|
|
1888 | |
|
|
1889 | /* we patch the op, and then re-run the whole call */ |
|
|
1890 | /* we have to put the same argument on the stack for this to work */ |
|
|
1891 | /* and this will be done by pp_restore */ |
|
|
1892 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1893 | slf_restore.op_type = OP_CUSTOM; |
|
|
1894 | slf_restore.op_ppaddr = pp_restore; |
|
|
1895 | slf_restore.op_first = PL_op; |
|
|
1896 | |
|
|
1897 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1898 | |
|
|
1899 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1900 | { |
|
|
1901 | if (items > slf_arga) |
|
|
1902 | { |
|
|
1903 | slf_arga = items; |
|
|
1904 | free (slf_argv); |
|
|
1905 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | slf_argc = items; |
|
|
1909 | |
|
|
1910 | for (i = 0; i < items; ++i) |
|
|
1911 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1912 | } |
|
|
1913 | else |
|
|
1914 | slf_argc = 0; |
|
|
1915 | |
|
|
1916 | PL_op->op_ppaddr = pp_slf; |
|
|
1917 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1918 | |
|
|
1919 | PL_op = (OP *)&slf_restore; |
1702 | } |
1920 | } |
1703 | |
1921 | |
1704 | /*****************************************************************************/ |
1922 | /*****************************************************************************/ |
1705 | /* PerlIO::cede */ |
1923 | /* PerlIO::cede */ |
1706 | |
1924 | |
… | |
… | |
1775 | PerlIOBuf_get_cnt, |
1993 | PerlIOBuf_get_cnt, |
1776 | PerlIOBuf_set_ptrcnt, |
1994 | PerlIOBuf_set_ptrcnt, |
1777 | }; |
1995 | }; |
1778 | |
1996 | |
1779 | /*****************************************************************************/ |
1997 | /*****************************************************************************/ |
1780 | |
1998 | /* Coro::Semaphore */ |
1781 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1782 | static const CV *slf_cv; |
|
|
1783 | static SV **slf_argv; |
|
|
1784 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1785 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1786 | |
|
|
1787 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1788 | /* recreate the stack frame as perl will on following calls */ |
|
|
1789 | /* since entersub cleared the stack */ |
|
|
1790 | static OP * |
|
|
1791 | pp_restore (pTHX) |
|
|
1792 | { |
|
|
1793 | int i; |
|
|
1794 | SV **SP = PL_stack_base + slf_ax; |
|
|
1795 | |
|
|
1796 | PUSHMARK (SP); |
|
|
1797 | |
|
|
1798 | EXTEND (SP, slf_argc + 1); |
|
|
1799 | |
|
|
1800 | for (i = 0; i < slf_argc; ++i) |
|
|
1801 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1802 | |
|
|
1803 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1804 | |
|
|
1805 | RETURNOP (slf_restore.op_first); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void |
|
|
1809 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1810 | { |
|
|
1811 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | static void |
|
|
1815 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1816 | { |
|
|
1817 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1818 | |
|
|
1819 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1820 | frame->check = slf_check_nop; |
|
|
1821 | frame->data = (void *)SvIV (arg [0]); |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | static void |
|
|
1825 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1826 | { |
|
|
1827 | SV **arg = (SV **)slf_frame.data; |
|
|
1828 | |
|
|
1829 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void |
|
|
1833 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1834 | { |
|
|
1835 | if (items != 2) |
|
|
1836 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1837 | |
|
|
1838 | frame->prepare = slf_prepare_transfer; |
|
|
1839 | frame->check = slf_check_nop; |
|
|
1840 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | static void |
|
|
1844 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1845 | { |
|
|
1846 | frame->prepare = prepare_schedule; |
|
|
1847 | frame->check = slf_check_nop; |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_cede; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede_notself; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1865 | #define CVf_SLF 0x4000 |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | * SLF stands for "schedule-like-function". |
|
|
1872 | */ |
|
|
1873 | static OP * |
|
|
1874 | pp_slf (pTHX) |
|
|
1875 | { |
|
|
1876 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1877 | |
|
|
1878 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1879 | /* the latter happens when a new coro has been started */ |
|
|
1880 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1881 | if (expect_true (!slf_frame.prepare)) |
|
|
1882 | { |
|
|
1883 | /* first iteration */ |
|
|
1884 | dSP; |
|
|
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
|
|
1888 | |
|
|
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1890 | /* for us, divert to the real entersub */ |
|
|
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1893 | |
|
|
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1895 | { |
|
|
1896 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1897 | AV *av = GvAV (PL_defgv); |
|
|
1898 | arg = AvARRAY (av); |
|
|
1899 | items = AvFILLp (av) + 1; |
|
|
1900 | } |
|
|
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 | |
|
|
1909 | PUTBACK; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | /* now that we have a slf_frame, interpret it! */ |
|
|
1913 | /* we use a callback system not to make the code needlessly */ |
|
|
1914 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1915 | |
|
|
1916 | do |
|
|
1917 | { |
|
|
1918 | struct coro_transfer_args ta; |
|
|
1919 | |
|
|
1920 | slf_frame.prepare (aTHX_ &ta); |
|
|
1921 | TRANSFER (ta, 0); |
|
|
1922 | |
|
|
1923 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1924 | } |
|
|
1925 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1926 | |
|
|
1927 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1928 | |
|
|
1929 | /* return value handling - mostly like entersub */ |
|
|
1930 | { |
|
|
1931 | dSP; |
|
|
1932 | SV **bot = PL_stack_base + checkmark; |
|
|
1933 | int gimme = GIMME_V; |
|
|
1934 | |
|
|
1935 | /* make sure we put something on the stack in scalar context */ |
|
|
1936 | if (gimme == G_SCALAR) |
|
|
1937 | { |
|
|
1938 | if (sp == bot) |
|
|
1939 | XPUSHs (&PL_sv_undef); |
|
|
1940 | |
|
|
1941 | SP = bot + 1; |
|
|
1942 | } |
|
|
1943 | |
|
|
1944 | PUTBACK; |
|
|
1945 | } |
|
|
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 | |
|
|
1957 | return NORMAL; |
|
|
1958 | } |
|
|
1959 | |
|
|
1960 | static void |
|
|
1961 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1962 | { |
|
|
1963 | int i; |
|
|
1964 | SV **arg = PL_stack_base + ax; |
|
|
1965 | int items = PL_stack_sp - arg + 1; |
|
|
1966 | |
|
|
1967 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1968 | |
|
|
1969 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1970 | && PL_op->op_ppaddr != pp_slf) |
|
|
1971 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1972 | |
|
|
1973 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1974 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1975 | slf_cv = cv; |
|
|
1976 | |
|
|
1977 | /* we patch the op, and then re-run the whole call */ |
|
|
1978 | /* we have to put the same argument on the stack for this to work */ |
|
|
1979 | /* and this will be done by pp_restore */ |
|
|
1980 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1981 | slf_restore.op_type = OP_CUSTOM; |
|
|
1982 | slf_restore.op_ppaddr = pp_restore; |
|
|
1983 | slf_restore.op_first = PL_op; |
|
|
1984 | |
|
|
1985 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1986 | |
|
|
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; |
|
|
2003 | |
|
|
2004 | PL_op->op_ppaddr = pp_slf; |
|
|
2005 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2006 | |
|
|
2007 | PL_op = (OP *)&slf_restore; |
|
|
2008 | } |
|
|
2009 | |
|
|
2010 | /*****************************************************************************/ |
|
|
2011 | |
1999 | |
2012 | static void |
2000 | static void |
2013 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2001 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2014 | { |
2002 | { |
2015 | SV *count_sv = AvARRAY (av)[0]; |
2003 | SV *count_sv = AvARRAY (av)[0]; |
… | |
… | |
2101 | frame->check = slf_check_semaphore_down; |
2089 | frame->check = slf_check_semaphore_down; |
2102 | |
2090 | |
2103 | } |
2091 | } |
2104 | |
2092 | |
2105 | /*****************************************************************************/ |
2093 | /*****************************************************************************/ |
|
|
2094 | /* gensub: simple closure generation utility */ |
2106 | |
2095 | |
2107 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2096 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2108 | |
2097 | |
2109 | /* create a closure from XS, returns a code reference */ |
2098 | /* create a closure from XS, returns a code reference */ |
2110 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2099 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2111 | /* the callback must use dXSARGS/XSRETURN */ |
2100 | /* the callback must use dXSARGS/XSRETURN */ |
2112 | static SV * |
2101 | static SV * |
2113 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
2102 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
2114 | { |
2103 | { |
2115 | CV *cv = (CV *)NEWSV (0, 0); |
2104 | CV *cv = (CV *)newSV (0); |
2116 | |
2105 | |
2117 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2106 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2118 | |
2107 | |
2119 | CvANON_on (cv); |
2108 | CvANON_on (cv); |
2120 | CvISXSUB_on (cv); |
2109 | CvISXSUB_on (cv); |
2121 | CvXSUB (cv) = xsub; |
2110 | CvXSUB (cv) = xsub; |
2122 | GENSUB_ARG = arg; |
2111 | GENSUB_ARG = arg; |
2123 | |
2112 | |
2124 | return newRV_noinc ((SV *)cv); |
2113 | return newRV_noinc ((SV *)cv); |
|
|
2114 | } |
|
|
2115 | |
|
|
2116 | /*****************************************************************************/ |
|
|
2117 | /* Coro::AIO */ |
|
|
2118 | |
|
|
2119 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2120 | |
|
|
2121 | /* helper storage struct */ |
|
|
2122 | struct io_state |
|
|
2123 | { |
|
|
2124 | int errorno; |
|
|
2125 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2126 | int laststatval; |
|
|
2127 | Stat_t statcache; |
|
|
2128 | }; |
|
|
2129 | |
|
|
2130 | static void |
|
|
2131 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2132 | { |
|
|
2133 | dXSARGS; |
|
|
2134 | AV *state = (AV *)GENSUB_ARG; |
|
|
2135 | SV *coro = av_pop (state); |
|
|
2136 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2137 | |
|
|
2138 | av_extend (state, items); |
|
|
2139 | |
|
|
2140 | sv_upgrade (data_sv, SVt_PV); |
|
|
2141 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2142 | SvPOK_only (data_sv); |
|
|
2143 | |
|
|
2144 | { |
|
|
2145 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2146 | |
|
|
2147 | data->errorno = errno; |
|
|
2148 | data->laststype = PL_laststype; |
|
|
2149 | data->laststatval = PL_laststatval; |
|
|
2150 | data->statcache = PL_statcache; |
|
|
2151 | } |
|
|
2152 | |
|
|
2153 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2154 | { |
|
|
2155 | int i; |
|
|
2156 | |
|
|
2157 | for (i = 0; i < items; ++i) |
|
|
2158 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | av_push (state, data_sv); |
|
|
2162 | |
|
|
2163 | api_ready (aTHX_ coro); |
|
|
2164 | SvREFCNT_dec (coro); |
|
|
2165 | SvREFCNT_dec ((AV *)state); |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | static int |
|
|
2169 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2170 | { |
|
|
2171 | AV *state = (AV *)frame->data; |
|
|
2172 | |
|
|
2173 | /* one element that is an RV? repeat! */ |
|
|
2174 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2175 | return 1; |
|
|
2176 | |
|
|
2177 | /* restore status */ |
|
|
2178 | { |
|
|
2179 | SV *data_sv = av_pop (state); |
|
|
2180 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2181 | |
|
|
2182 | errno = data->errorno; |
|
|
2183 | PL_laststype = data->laststype; |
|
|
2184 | PL_laststatval = data->laststatval; |
|
|
2185 | PL_statcache = data->statcache; |
|
|
2186 | |
|
|
2187 | SvREFCNT_dec (data_sv); |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | /* push result values */ |
|
|
2191 | { |
|
|
2192 | dSP; |
|
|
2193 | int i; |
|
|
2194 | |
|
|
2195 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2196 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2197 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2198 | |
|
|
2199 | PUTBACK; |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | return 0; |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | static void |
|
|
2206 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2207 | { |
|
|
2208 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2209 | SV *coro_hv = SvRV (coro_current); |
|
|
2210 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2211 | |
|
|
2212 | /* put our coroutine id on the state arg */ |
|
|
2213 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2214 | |
|
|
2215 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2216 | if (coro->prio) |
|
|
2217 | { |
|
|
2218 | dSP; |
|
|
2219 | |
|
|
2220 | static SV *prio_cv; |
|
|
2221 | static SV *prio_sv; |
|
|
2222 | |
|
|
2223 | if (expect_false (!prio_cv)) |
|
|
2224 | { |
|
|
2225 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2226 | prio_sv = newSViv (0); |
|
|
2227 | } |
|
|
2228 | |
|
|
2229 | PUSHMARK (SP); |
|
|
2230 | sv_setiv (prio_sv, coro->prio); |
|
|
2231 | XPUSHs (prio_sv); |
|
|
2232 | |
|
|
2233 | PUTBACK; |
|
|
2234 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2235 | } |
|
|
2236 | |
|
|
2237 | /* now call the original request */ |
|
|
2238 | { |
|
|
2239 | dSP; |
|
|
2240 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2241 | int i; |
|
|
2242 | |
|
|
2243 | PUSHMARK (SP); |
|
|
2244 | |
|
|
2245 | /* first push all args to the stack */ |
|
|
2246 | EXTEND (SP, items + 1); |
|
|
2247 | |
|
|
2248 | for (i = 0; i < items; ++i) |
|
|
2249 | PUSHs (arg [i]); |
|
|
2250 | |
|
|
2251 | /* now push the callback closure */ |
|
|
2252 | PUSHs (sv_2mortal (gensub (coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2253 | |
|
|
2254 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2255 | PUTBACK; |
|
|
2256 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2257 | } |
|
|
2258 | |
|
|
2259 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2260 | frame->data = (void *)state; |
|
|
2261 | frame->prepare = prepare_schedule; |
|
|
2262 | frame->check = slf_check_aio_req; |
|
|
2263 | } |
|
|
2264 | |
|
|
2265 | static void |
|
|
2266 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2267 | { |
|
|
2268 | dVAR; |
|
|
2269 | dXSARGS; |
|
|
2270 | |
|
|
2271 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2272 | |
|
|
2273 | XSRETURN_EMPTY; |
2125 | } |
2274 | } |
2126 | |
2275 | |
2127 | /*****************************************************************************/ |
2276 | /*****************************************************************************/ |
2128 | |
2277 | |
2129 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2278 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
… | |
… | |
2427 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2576 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2428 | |
2577 | |
2429 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2578 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2430 | } |
2579 | } |
2431 | |
2580 | |
|
|
2581 | |
2432 | MODULE = Coro::State PACKAGE = Coro |
2582 | MODULE = Coro::State PACKAGE = Coro |
2433 | |
2583 | |
2434 | BOOT: |
2584 | BOOT: |
2435 | { |
2585 | { |
2436 | int i; |
2586 | int i; |
… | |
… | |
2610 | |
2760 | |
2611 | av_push (av_async_pool, newSVsv (coro_current)); |
2761 | av_push (av_async_pool, newSVsv (coro_current)); |
2612 | } |
2762 | } |
2613 | |
2763 | |
2614 | |
2764 | |
2615 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2616 | |
|
|
2617 | void |
|
|
2618 | _get_state (SV *self) |
|
|
2619 | PROTOTYPE: $ |
|
|
2620 | PPCODE: |
|
|
2621 | { |
|
|
2622 | AV *defav = GvAV (PL_defgv); |
|
|
2623 | AV *av = newAV (); |
|
|
2624 | int i; |
|
|
2625 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2626 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2627 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2628 | SvPOK_only (data_sv); |
|
|
2629 | |
|
|
2630 | data->errorno = errno; |
|
|
2631 | data->laststype = PL_laststype; |
|
|
2632 | data->laststatval = PL_laststatval; |
|
|
2633 | data->statcache = PL_statcache; |
|
|
2634 | |
|
|
2635 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2636 | |
|
|
2637 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2638 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2639 | |
|
|
2640 | av_push (av, data_sv); |
|
|
2641 | |
|
|
2642 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2643 | |
|
|
2644 | api_ready (aTHX_ self); |
|
|
2645 | } |
|
|
2646 | |
|
|
2647 | void |
|
|
2648 | _set_state (SV *state) |
|
|
2649 | PROTOTYPE: $ |
|
|
2650 | PPCODE: |
|
|
2651 | { |
|
|
2652 | AV *av = (AV *)SvRV (state); |
|
|
2653 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2654 | int i; |
|
|
2655 | |
|
|
2656 | errno = data->errorno; |
|
|
2657 | PL_laststype = data->laststype; |
|
|
2658 | PL_laststatval = data->laststatval; |
|
|
2659 | PL_statcache = data->statcache; |
|
|
2660 | |
|
|
2661 | EXTEND (SP, AvFILLp (av)); |
|
|
2662 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2663 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2664 | } |
|
|
2665 | |
|
|
2666 | |
|
|
2667 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2668 | |
|
|
2669 | BOOT: |
|
|
2670 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2671 | |
|
|
2672 | void |
|
|
2673 | _schedule (...) |
|
|
2674 | CODE: |
|
|
2675 | { |
|
|
2676 | static int incede; |
|
|
2677 | |
|
|
2678 | api_cede_notself (aTHX); |
|
|
2679 | |
|
|
2680 | ++incede; |
|
|
2681 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2682 | ; |
|
|
2683 | |
|
|
2684 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2685 | if (coro_nready >= incede) |
|
|
2686 | { |
|
|
2687 | PUSHMARK (SP); |
|
|
2688 | PUTBACK; |
|
|
2689 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2690 | SPAGAIN; |
|
|
2691 | } |
|
|
2692 | |
|
|
2693 | --incede; |
|
|
2694 | } |
|
|
2695 | |
|
|
2696 | |
|
|
2697 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2765 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2698 | |
2766 | |
2699 | BOOT: |
2767 | BOOT: |
2700 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2768 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2769 | |
2701 | |
2770 | |
2702 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2771 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2703 | |
2772 | |
2704 | SV * |
2773 | SV * |
2705 | new (SV *klass, SV *count_ = 0) |
2774 | new (SV *klass, SV *count_ = 0) |
… | |
… | |
2765 | for (i = 1; i <= AvFILLp (av); ++i) |
2834 | for (i = 1; i <= AvFILLp (av); ++i) |
2766 | PUSHs (newSVsv (AvARRAY (av)[i])); |
2835 | PUSHs (newSVsv (AvARRAY (av)[i])); |
2767 | } |
2836 | } |
2768 | } |
2837 | } |
2769 | |
2838 | |
|
|
2839 | |
|
|
2840 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2841 | |
|
|
2842 | BOOT: |
|
|
2843 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2844 | |
|
|
2845 | void |
|
|
2846 | _schedule (...) |
|
|
2847 | CODE: |
|
|
2848 | { |
|
|
2849 | static int incede; |
|
|
2850 | |
|
|
2851 | api_cede_notself (aTHX); |
|
|
2852 | |
|
|
2853 | ++incede; |
|
|
2854 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2855 | ; |
|
|
2856 | |
|
|
2857 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2858 | if (coro_nready >= incede) |
|
|
2859 | { |
|
|
2860 | PUSHMARK (SP); |
|
|
2861 | PUTBACK; |
|
|
2862 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2863 | SPAGAIN; |
|
|
2864 | } |
|
|
2865 | |
|
|
2866 | --incede; |
|
|
2867 | } |
|
|
2868 | |
|
|
2869 | |
|
|
2870 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2871 | |
|
|
2872 | void |
|
|
2873 | _register (char *target, char *proto, SV *req) |
|
|
2874 | CODE: |
|
|
2875 | { |
|
|
2876 | HV *st; |
|
|
2877 | GV *gvp; |
|
|
2878 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
2879 | CV *slf_cv = newXSproto (target, coro_aio_req_xs, __FILE__, proto); |
|
|
2880 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
2881 | } |
|
|
2882 | |