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/cvs/Coro/Coro/State.xs
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Comparing Coro/Coro/State.xs (file contents):
Revision 1.301 by root, Wed Nov 19 02:41:31 2008 UTC vs.
Revision 1.302 by root, Wed Nov 19 04:48:24 2008 UTC

… …
16 16
17#ifdef WIN32 17#ifdef WIN32
18# undef setjmp 18# undef setjmp
19# undef longjmp 19# undef longjmp
20# undef _exit 20# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 21# define setjmp _setjmp /* deep magic */
22#else 22#else
23# include <inttypes.h> /* most portable stdint.h */ 23# include <inttypes.h> /* most portable stdint.h */
24#endif 24#endif
25 25
26#ifdef HAVE_MMAP 26#ifdef HAVE_MMAP
… …
258 int usecount; /* number of transfers to this coro */ 258 int usecount; /* number of transfers to this coro */
259 259
260 /* coro process data */ 260 /* coro process data */
261 int prio; 261 int prio;
262 SV *except; /* exception to be thrown */ 262 SV *except; /* exception to be thrown */
263 SV *rouse_cb;
263 264
264 /* async_pool */ 265 /* async_pool */
265 SV *saved_deffh; 266 SV *saved_deffh;
266 267
267 /* linked list */ 268 /* linked list */
… …
918 SvREFCNT_dec (GvSV (irsgv)); 919 SvREFCNT_dec (GvSV (irsgv));
919 920
920 SvREFCNT_dec (PL_diehook); 921 SvREFCNT_dec (PL_diehook);
921 SvREFCNT_dec (PL_warnhook); 922 SvREFCNT_dec (PL_warnhook);
922 923
924 SvREFCNT_dec (CORO_THROW);
923 SvREFCNT_dec (coro->saved_deffh); 925 SvREFCNT_dec (coro->saved_deffh);
924 SvREFCNT_dec (CORO_THROW); 926 SvREFCNT_dec (coro->rouse_cb);
925 927
926 coro_destruct_stacks (aTHX); 928 coro_destruct_stacks (aTHX);
927} 929}
928 930
929INLINE void 931INLINE void
… …
1497 1499
1498 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1500 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1499 TRANSFER (ta, 1); 1501 TRANSFER (ta, 1);
1500} 1502}
1501 1503
1504/*****************************************************************************/
1505/* gensub: simple closure generation utility */
1506
1507#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1508
1509/* create a closure from XS, returns a code reference */
1510/* the arg can be accessed via GENSUB_ARG from the callback */
1511/* the callback must use dXSARGS/XSRETURN */
1512static SV *
1513gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1514{
1515 CV *cv = (CV *)newSV (0);
1516
1517 sv_upgrade ((SV *)cv, SVt_PVCV);
1518
1519 CvANON_on (cv);
1520 CvISXSUB_on (cv);
1521 CvXSUB (cv) = xsub;
1522 GENSUB_ARG = arg;
1523
1524 return newRV_noinc ((SV *)cv);
1525}
1526
1502/** Coro ********************************************************************/ 1527/** Coro ********************************************************************/
1503 1528
1504INLINE void 1529INLINE void
1505coro_enq (pTHX_ struct coro *coro) 1530coro_enq (pTHX_ struct coro *coro)
1506{ 1531{
… …
1703 if (coro->flags & CF_RUNNING) 1728 if (coro->flags & CF_RUNNING)
1704 PL_runops = RUNOPS_DEFAULT; 1729 PL_runops = RUNOPS_DEFAULT;
1705 else 1730 else
1706 coro->slot->runops = RUNOPS_DEFAULT; 1731 coro->slot->runops = RUNOPS_DEFAULT;
1707 } 1732 }
1733}
1734
1735/*****************************************************************************/
1736/* rouse callback */
1737
1738#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1739
1740static void
1741coro_rouse_callback (pTHX_ CV *cv)
1742{
1743 dXSARGS;
1744 SV *data = (SV *)GENSUB_ARG;
1745
1746 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1747 {
1748 /* first call, set args */
1749 int i;
1750 AV *av = newAV ();
1751 SV *coro = SvRV (data);
1752
1753 SvRV_set (data, (SV *)av);
1754 api_ready (aTHX_ coro);
1755 SvREFCNT_dec (coro);
1756
1757 while (items--)
1758 av_store (av, items, SvREFCNT_inc_NN (ST (items)));
1759 }
1760
1761 XSRETURN_EMPTY;
1762}
1763
1764static int
1765slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1766{
1767 SV *data = (SV *)frame->data;
1768
1769 if (CORO_THROW)
1770 return 0;
1771
1772 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1773 return 1;
1774
1775 /* now push all results on the stack */
1776 {
1777 dSP;
1778 AV *av = (AV *)SvRV (data);
1779 int i;
1780
1781 EXTEND (SP, AvFILLp (av) + 1);
1782 for (i = 0; i <= AvFILLp (av); ++i)
1783 PUSHs (AvARRAY (av)[i]);
1784
1785 PUTBACK;
1786 }
1787
1788 return 0;
1789}
1790
1791static void
1792slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1793{
1794 SV *cb;
1795
1796 if (items)
1797 cb = arg [0];
1798 else
1799 {
1800 struct coro *coro = SvSTATE_current;
1801
1802 if (!coro->rouse_cb)
1803 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
1804
1805 cb = sv_2mortal (coro->rouse_cb);
1806 coro->rouse_cb = 0;
1807 }
1808
1809 if (!SvROK (cb)
1810 || SvTYPE (SvRV (cb)) != SVt_PVCV
1811 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1812 croak ("Coro::rouse_wait called with illegal callback argument,");
1813
1814 {
1815 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
1816 SV *data = (SV *)GENSUB_ARG;
1817
1818 frame->data = (void *)data;
1819 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1820 frame->check = slf_check_rouse_wait;
1821 }
1822}
1823
1824static SV *
1825coro_new_rouse_cb (pTHX)
1826{
1827 HV *hv = (HV *)SvRV (coro_current);
1828 struct coro *coro = SvSTATE_hv (hv);
1829 SV *data = newRV_inc ((SV *)hv);
1830 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
1831
1832 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1833
1834 SvREFCNT_dec (coro->rouse_cb);
1835 coro->rouse_cb = SvREFCNT_inc_NN (cb);
1836
1837 return cb;
1708} 1838}
1709 1839
1710/*****************************************************************************/ 1840/*****************************************************************************/
1711/* schedule-like-function opcode (SLF) */ 1841/* schedule-like-function opcode (SLF) */
1712 1842
… …
2197 frame->check = slf_check_signal_wait; 2327 frame->check = slf_check_signal_wait;
2198 } 2328 }
2199} 2329}
2200 2330
2201/*****************************************************************************/ 2331/*****************************************************************************/
2202/* gensub: simple closure generation utility */
2203
2204#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2205
2206/* create a closure from XS, returns a code reference */
2207/* the arg can be accessed via GENSUB_ARG from the callback */
2208/* the callback must use dXSARGS/XSRETURN */
2209static SV *
2210gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2211{
2212 CV *cv = (CV *)newSV (0);
2213
2214 sv_upgrade ((SV *)cv, SVt_PVCV);
2215
2216 CvANON_on (cv);
2217 CvISXSUB_on (cv);
2218 CvXSUB (cv) = xsub;
2219 GENSUB_ARG = arg;
2220
2221 return newRV_noinc ((SV *)cv);
2222}
2223
2224/*****************************************************************************/
2225/* Coro::AIO */ 2332/* Coro::AIO */
2226 2333
2227#define CORO_MAGIC_type_aio PERL_MAGIC_ext 2334#define CORO_MAGIC_type_aio PERL_MAGIC_ext
2228 2335
2229/* helper storage struct */ 2336/* helper storage struct */
… …
2867 api_trace (aTHX_ coro_current, 0); 2974 api_trace (aTHX_ coro_current, 0);
2868 2975
2869 av_push (av_async_pool, newSVsv (coro_current)); 2976 av_push (av_async_pool, newSVsv (coro_current));
2870} 2977}
2871 2978
2979SV *
2980rouse_cb ()
2981 PROTOTYPE:
2982 CODE:
2983 RETVAL = coro_new_rouse_cb (aTHX);
2984 OUTPUT:
2985 RETVAL
2986
2987void
2988rouse_wait (SV *cb = 0)
2989 PROTOTYPE: ;$
2990 PPCODE:
2991 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2992
2872 2993
2873MODULE = Coro::State PACKAGE = PerlIO::cede 2994MODULE = Coro::State PACKAGE = PerlIO::cede
2874 2995
2875BOOT: 2996BOOT:
2876 PerlIO_define_layer (aTHX_ &PerlIO_cede); 2997 PerlIO_define_layer (aTHX_ &PerlIO_cede);

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