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Comparing Coro/Coro/State.xs (file contents):
Revision 1.299 by root, Wed Nov 19 00:06:55 2008 UTC vs.
Revision 1.304 by root, Wed Nov 19 08:22:48 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 /* better take a full copy of the arguments */
1758 while (items--)
1759 av_store (av, items, newSVsv (ST (items)));
1760 }
1761
1762 XSRETURN_EMPTY;
1763}
1764
1765static int
1766slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1767{
1768 SV *data = (SV *)frame->data;
1769
1770 if (CORO_THROW)
1771 return 0;
1772
1773 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1774 return 1;
1775
1776 /* now push all results on the stack */
1777 {
1778 dSP;
1779 AV *av = (AV *)SvRV (data);
1780 int i;
1781
1782 EXTEND (SP, AvFILLp (av) + 1);
1783 for (i = 0; i <= AvFILLp (av); ++i)
1784 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1785
1786 /* we have stolen the elements, so ste length to zero and free */
1787 AvFILLp (av) = -1;
1788 av_undef (av);
1789
1790 PUTBACK;
1791 }
1792
1793 return 0;
1794}
1795
1796static void
1797slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1798{
1799 SV *cb;
1800
1801 if (items)
1802 cb = arg [0];
1803 else
1804 {
1805 struct coro *coro = SvSTATE_current;
1806
1807 if (!coro->rouse_cb)
1808 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
1809
1810 cb = sv_2mortal (coro->rouse_cb);
1811 coro->rouse_cb = 0;
1812 }
1813
1814 if (!SvROK (cb)
1815 || SvTYPE (SvRV (cb)) != SVt_PVCV
1816 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1817 croak ("Coro::rouse_wait called with illegal callback argument,");
1818
1819 {
1820 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
1821 SV *data = (SV *)GENSUB_ARG;
1822
1823 frame->data = (void *)data;
1824 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1825 frame->check = slf_check_rouse_wait;
1826 }
1827}
1828
1829static SV *
1830coro_new_rouse_cb (pTHX)
1831{
1832 HV *hv = (HV *)SvRV (coro_current);
1833 struct coro *coro = SvSTATE_hv (hv);
1834 SV *data = newRV_inc ((SV *)hv);
1835 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
1836
1837 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1838 SvREFCNT_dec (data); /* magicext increases the refcount */
1839
1840 SvREFCNT_dec (coro->rouse_cb);
1841 coro->rouse_cb = SvREFCNT_inc_NN (cb);
1842
1843 return cb;
1708} 1844}
1709 1845
1710/*****************************************************************************/ 1846/*****************************************************************************/
1711/* schedule-like-function opcode (SLF) */ 1847/* schedule-like-function opcode (SLF) */
1712 1848
… …
1995 PerlIOBuf_get_cnt, 2131 PerlIOBuf_get_cnt,
1996 PerlIOBuf_set_ptrcnt, 2132 PerlIOBuf_set_ptrcnt,
1997}; 2133};
1998 2134
1999/*****************************************************************************/ 2135/*****************************************************************************/
2000/* Coro::Semaphore */ 2136/* Coro::Semaphore & Coro::Signal */
2001 2137
2002static SV * 2138static SV *
2003coro_semaphore_new (int count) 2139coro_waitarray_new (pTHX_ int count)
2004{ 2140{
2005 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2141 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2006 AV *av = newAV (); 2142 AV *av = newAV ();
2007 SV **ary; 2143 SV **ary;
2008 2144
2009 /* unfortunately, building manually saves memory */ 2145 /* unfortunately, building manually saves memory */
2010 Newx (ary, 2, SV *); 2146 Newx (ary, 2, SV *);
2011 AvALLOC (av) = ary; 2147 AvALLOC (av) = ary;
2012 AvARRAY (av) = ary; 2148 SvPV_set ((SV *)av, (char *)ary); /* 5.8.8 needs this syntax instead of AvARRAY = ary */
2013 AvMAX (av) = 1; 2149 AvMAX (av) = 1;
2014 AvFILLp (av) = 0; 2150 AvFILLp (av) = 0;
2015 ary [0] = newSViv (count); 2151 ary [0] = newSViv (count);
2016 2152
2017 return newRV_noinc ((SV *)av); 2153 return newRV_noinc ((SV *)av);
2018} 2154}
2155
2156/* semaphore */
2019 2157
2020static void 2158static void
2021coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2159coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2022{ 2160{
2023 SV *count_sv = AvARRAY (av)[0]; 2161 SV *count_sv = AvARRAY (av)[0];
… …
2137{ 2275{
2138 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); 2276 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2139 frame->check = slf_check_semaphore_wait; 2277 frame->check = slf_check_semaphore_wait;
2140} 2278}
2141 2279
2142/*****************************************************************************/ 2280/* signal */
2143/* gensub: simple closure generation utility */
2144 2281
2145#define GENSUB_ARG CvXSUBANY (cv).any_ptr 2282static void
2146 2283coro_signal_wake (pTHX_ AV *av, int count)
2147/* create a closure from XS, returns a code reference */
2148/* the arg can be accessed via GENSUB_ARG from the callback */
2149/* the callback must use dXSARGS/XSRETURN */
2150static SV *
2151gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2152{ 2284{
2153 CV *cv = (CV *)newSV (0); 2285 SvIVX (AvARRAY (av)[0]) = 0;
2154 2286
2155 sv_upgrade ((SV *)cv, SVt_PVCV); 2287 /* now signal count waiters */
2288 while (count > 0 && AvFILLp (av) > 0)
2289 {
2290 SV *cb;
2156 2291
2157 CvANON_on (cv); 2292 /* swap first two elements so we can shift a waiter */
2158 CvISXSUB_on (cv); 2293 cb = AvARRAY (av)[0];
2159 CvXSUB (cv) = xsub; 2294 AvARRAY (av)[0] = AvARRAY (av)[1];
2160 GENSUB_ARG = arg; 2295 AvARRAY (av)[1] = cb;
2161 2296
2162 return newRV_noinc ((SV *)cv); 2297 cb = av_shift (av);
2298
2299 api_ready (aTHX_ cb);
2300 sv_setiv (cb, 0); /* signal waiter */
2301 SvREFCNT_dec (cb);
2302
2303 --count;
2304 }
2305}
2306
2307static int
2308slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2309{
2310 /* if we are about to throw, also stop waiting */
2311 return SvROK ((SV *)frame->data) && !CORO_THROW;
2312}
2313
2314static void
2315slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2316{
2317 AV *av = (AV *)SvRV (arg [0]);
2318
2319 if (SvIVX (AvARRAY (av)[0]))
2320 {
2321 SvIVX (AvARRAY (av)[0]) = 0;
2322 frame->prepare = prepare_nop;
2323 frame->check = slf_check_nop;
2324 }
2325 else
2326 {
2327 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
2328
2329 av_push (av, waiter);
2330
2331 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2332 frame->prepare = prepare_schedule;
2333 frame->check = slf_check_signal_wait;
2334 }
2163} 2335}
2164 2336
2165/*****************************************************************************/ 2337/*****************************************************************************/
2166/* Coro::AIO */ 2338/* Coro::AIO */
2167 2339
… …
2808 api_trace (aTHX_ coro_current, 0); 2980 api_trace (aTHX_ coro_current, 0);
2809 2981
2810 av_push (av_async_pool, newSVsv (coro_current)); 2982 av_push (av_async_pool, newSVsv (coro_current));
2811} 2983}
2812 2984
2985SV *
2986rouse_cb ()
2987 PROTOTYPE:
2988 CODE:
2989 RETVAL = coro_new_rouse_cb (aTHX);
2990 OUTPUT:
2991 RETVAL
2992
2993void
2994rouse_wait (SV *cb = 0)
2995 PROTOTYPE: ;$
2996 PPCODE:
2997 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2998
2813 2999
2814MODULE = Coro::State PACKAGE = PerlIO::cede 3000MODULE = Coro::State PACKAGE = PerlIO::cede
2815 3001
2816BOOT: 3002BOOT:
2817 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3003 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
2821 3007
2822SV * 3008SV *
2823new (SV *klass, SV *count = 0) 3009new (SV *klass, SV *count = 0)
2824 CODE: 3010 CODE:
2825 RETVAL = sv_bless ( 3011 RETVAL = sv_bless (
2826 coro_semaphore_new (count && SvOK (count) ? SvIV (count) : 1), 3012 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2827 GvSTASH (CvGV (cv)) 3013 GvSTASH (CvGV (cv))
2828 ); 3014 );
2829 OUTPUT: 3015 OUTPUT:
2830 RETVAL 3016 RETVAL
2831 3017
2832# helper for Coro::Channel 3018# helper for Coro::Channel
2833SV * 3019SV *
2834_alloc (int count) 3020_alloc (int count)
2835 CODE: 3021 CODE:
2836 RETVAL = coro_semaphore_new (count); 3022 RETVAL = coro_waitarray_new (aTHX_ count);
2837 OUTPUT: 3023 OUTPUT:
2838 RETVAL 3024 RETVAL
2839 3025
2840SV * 3026SV *
2841count (SV *self) 3027count (SV *self)
… …
2851 CODE: 3037 CODE:
2852 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3038 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2853 3039
2854void 3040void
2855down (SV *self) 3041down (SV *self)
2856 ALIAS:
2857 Coro::Signal::wait = 0
2858 CODE: 3042 CODE:
2859 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3043 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
2860 3044
2861void 3045void
2862wait (SV *self) 3046wait (SV *self)
… …
2903 3087
2904SV * 3088SV *
2905new (SV *klass) 3089new (SV *klass)
2906 CODE: 3090 CODE:
2907 RETVAL = sv_bless ( 3091 RETVAL = sv_bless (
2908 coro_semaphore_new (0), 3092 coro_waitarray_new (aTHX_ 0),
2909 GvSTASH (CvGV (cv)) 3093 GvSTASH (CvGV (cv))
2910 ); 3094 );
2911 OUTPUT: 3095 OUTPUT:
2912 RETVAL 3096 RETVAL
2913 3097
2914void 3098void
2915broadcast (SV *self, int adjust = 1) 3099wait (SV *self)
2916 CODE: 3100 CODE:
3101 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3102
3103void
3104broadcast (SV *self)
3105 CODE:
3106{
3107 AV *av = (AV *)SvRV (self);
3108 coro_signal_wake (aTHX_ av, AvFILLp (av));
3109}
3110
3111void
3112send (SV *self)
3113 CODE:
2917{ 3114{
2918 AV *av = (AV *)SvRV (self); 3115 AV *av = (AV *)SvRV (self);
2919 SvIVX (AvARRAY (av)[0]) = 0; /* not necessary, but gives me fuzzy warm feelings */ 3116
2920 coro_semaphore_adjust (aTHX_ av, AvFILLp (av) + 1 - 1); 3117 if (AvFILLp (av))
3118 coro_signal_wake (aTHX_ av, 1);
3119 else
2921 SvIVX (AvARRAY (av)[0]) = 0; /* necessary */ 3120 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
2922} 3121}
3122
3123IV
3124awaited (SV *self)
3125 CODE:
3126 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3127 OUTPUT:
3128 RETVAL
2923 3129
2924 3130
2925MODULE = Coro::State PACKAGE = Coro::AnyEvent 3131MODULE = Coro::State PACKAGE = Coro::AnyEvent
2926 3132
2927BOOT: 3133BOOT:

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