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Comparing Coro/Coro/State.xs (file contents):
Revision 1.281 by root, Sun Nov 16 10:12:38 2008 UTC vs.
Revision 1.287 by root, Mon Nov 17 07:03:12 2008 UTC

… …
147# if CORO_PTHREAD 147# if CORO_PTHREAD
148static void *coro_thx; 148static void *coro_thx;
149# endif 149# endif
150#endif 150#endif
151 151
152/* helper storage struct for Coro::AIO */
153struct 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
162static double (*nvtime)(); /* so why doesn't it take void? */ 152static double (*nvtime)(); /* so why doesn't it take void? */
163 153
164static U32 cctx_gen; 154static U32 cctx_gen;
165static size_t cctx_stacksize = CORO_STACKSIZE; 155static size_t cctx_stacksize = CORO_STACKSIZE;
166static struct CoroAPI coroapi; 156static struct CoroAPI coroapi;
167static AV *main_mainstack; /* used to differentiate between $main and others */ 157static AV *main_mainstack; /* used to differentiate between $main and others */
168static JMPENV *main_top_env; 158static JMPENV *main_top_env;
169static HV *coro_state_stash, *coro_stash; 159static HV *coro_state_stash, *coro_stash;
170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 160static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171static volatile struct coro *transfer_next;
172 161
173static GV *irsgv; /* $/ */ 162static GV *irsgv; /* $/ */
174static GV *stdoutgv; /* *STDOUT */ 163static GV *stdoutgv; /* *STDOUT */
175static SV *rv_diehook; 164static SV *rv_diehook;
176static SV *rv_warnhook; 165static SV *rv_warnhook;
… …
242/* this is a structure representing a perl-level coroutine */ 231/* this is a structure representing a perl-level coroutine */
243struct coro { 232struct coro {
244 /* the C coroutine allocated to this perl coroutine, if any */ 233 /* the C coroutine allocated to this perl coroutine, if any */
245 coro_cctx *cctx; 234 coro_cctx *cctx;
246 235
247 /* process data */ 236 /* state data */
248 struct CoroSLF slf_frame; /* saved slf frame */ 237 struct CoroSLF slf_frame; /* saved slf frame */
249 AV *mainstack; 238 AV *mainstack;
250 perl_slots *slot; /* basically the saved sp */ 239 perl_slots *slot; /* basically the saved sp */
251 240
252 AV *args; /* data associated with this coroutine (initial args) */ 241 AV *args; /* data associated with this coroutine (initial args) */
… …
270}; 259};
271 260
272typedef struct coro *Coro__State; 261typedef struct coro *Coro__State;
273typedef struct coro *Coro__State_or_hashref; 262typedef struct coro *Coro__State_or_hashref;
274 263
264/* the following variables are effectively part of the perl context */
265/* and get copied between struct coro and these variables */
266/* the mainr easonw e don't support windows process emulation */
275static struct CoroSLF slf_frame; /* the current slf frame */ 267static struct CoroSLF slf_frame; /* the current slf frame */
268static SV *coro_throw;
276 269
277/** Coro ********************************************************************/ 270/** Coro ********************************************************************/
278 271
279#define PRIO_MAX 3 272#define PRIO_MAX 3
280#define PRIO_HIGH 1 273#define PRIO_HIGH 1
… …
381 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 374 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
382 375
383 return 0; 376 return 0;
384} 377}
385 378
386#define CORO_MAGIC_type_cv PERL_MAGIC_ext 379#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext 380#define CORO_MAGIC_type_state PERL_MAGIC_ext
388 381
389static MGVTBL coro_cv_vtbl = { 382static MGVTBL coro_cv_vtbl = {
390 0, 0, 0, 0, 383 0, 0, 0, 0,
391 coro_cv_free 384 coro_cv_free
392}; 385};
393 386
387#define CORO_MAGIC_NN(sv, type) \
388 (expect_true (SvMAGIC (sv)->mg_type == type) \
389 ? SvMAGIC (sv) \
390 : mg_find (sv, type))
391
394#define CORO_MAGIC(sv, type) \ 392#define CORO_MAGIC(sv, type) \
395 expect_true (SvMAGIC (sv)) \ 393 (expect_true (SvMAGIC (sv)) \
396 ? expect_true (SvMAGIC (sv)->mg_type == type) \ 394 ? CORO_MAGIC_NN (sv, type) \
397 ? SvMAGIC (sv) \
398 : mg_find (sv, type) \
399 : 0 395 : 0)
400 396
401#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)
402#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)
403 399
404INLINE struct coro * 400INLINE struct coro *
405SvSTATE_ (pTHX_ SV *coro) 401SvSTATE_ (pTHX_ SV *coro)
406{ 402{
407 HV *stash; 403 HV *stash;
… …
425 return (struct coro *)mg->mg_ptr; 421 return (struct coro *)mg->mg_ptr;
426} 422}
427 423
428#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 424#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
429 425
430/* fastert than SvSTATE, but expects a coroutine hv */ 426/* faster than SvSTATE, but expects a coroutine hv */
431INLINE struct coro * 427#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
432SvSTATE_hv (SV *sv)
433{
434 MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state)
435 ? SvMAGIC (sv)
436 : mg_find (sv, CORO_MAGIC_type_state);
437
438 return (struct coro *)mg->mg_ptr;
439}
440
441#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 428#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
442 429
443/* the next two functions merely cache the padlists */ 430/* the next two functions merely cache the padlists */
444static void 431static void
445get_padlist (pTHX_ CV *cv) 432get_padlist (pTHX_ CV *cv)
… …
514 } 501 }
515 502
516 PUTBACK; 503 PUTBACK;
517 } 504 }
518 505
519 slf_frame = c->slf_frame; 506 slf_frame = c->slf_frame;
507 coro_throw = c->throw;
520} 508}
521 509
522static void 510static void
523save_perl (pTHX_ Coro__State c) 511save_perl (pTHX_ Coro__State c)
524{ 512{
513 c->throw = coro_throw;
525 c->slf_frame = slf_frame; 514 c->slf_frame = slf_frame;
526 515
527 { 516 {
528 dSP; 517 dSP;
529 I32 cxix = cxstack_ix; 518 I32 cxix = cxstack_ix;
… …
822slf_check_nop (pTHX_ struct CoroSLF *frame) 811slf_check_nop (pTHX_ struct CoroSLF *frame)
823{ 812{
824 return 0; 813 return 0;
825} 814}
826 815
827static void 816static void NOINLINE /* noinline to keep it out of the transfer fast path */
828coro_setup (pTHX_ struct coro *coro) 817coro_setup (pTHX_ struct coro *coro)
829{ 818{
830 /* 819 /*
831 * emulate part of the perl startup here. 820 * emulate part of the perl startup here.
832 */ 821 */
… …
875 /* this newly created coroutine might be run on an existing cctx which most 864 /* this newly created coroutine might be run on an existing cctx which most
876 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 865 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
877 */ 866 */
878 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 867 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
879 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 868 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
869
870 coro_throw = coro->throw;
880} 871}
881 872
882static void 873static void
883coro_destruct (pTHX_ struct coro *coro) 874coro_destruct (pTHX_ struct coro *coro)
884{ 875{
… …
908 899
909 SvREFCNT_dec (PL_diehook); 900 SvREFCNT_dec (PL_diehook);
910 SvREFCNT_dec (PL_warnhook); 901 SvREFCNT_dec (PL_warnhook);
911 902
912 SvREFCNT_dec (coro->saved_deffh); 903 SvREFCNT_dec (coro->saved_deffh);
913 SvREFCNT_dec (coro->throw); 904 SvREFCNT_dec (coro_throw);
914 905
915 coro_destruct_stacks (aTHX); 906 coro_destruct_stacks (aTHX);
916} 907}
917 908
918INLINE void 909INLINE void
… …
1087 1078
1088/* the tail of transfer: execute stuff we can only do after a transfer */ 1079/* the tail of transfer: execute stuff we can only do after a transfer */
1089INLINE void 1080INLINE void
1090transfer_tail (pTHX) 1081transfer_tail (pTHX)
1091{ 1082{
1092 struct coro *next = (struct coro *)transfer_next;
1093 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1094 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1095
1096 free_coro_mortal (aTHX); 1083 free_coro_mortal (aTHX);
1097
1098 if (expect_false (next->throw))
1099 {
1100 SV *exception = sv_2mortal (next->throw);
1101
1102 next->throw = 0;
1103 sv_setsv (ERRSV, exception);
1104 croak (0);
1105 }
1106} 1084}
1107 1085
1108/* 1086/*
1109 * this is a _very_ stripped down perl interpreter ;) 1087 * this is a _very_ stripped down perl interpreter ;)
1110 */ 1088 */
… …
1125 1103
1126 /* inject a fake subroutine call to cctx_init */ 1104 /* inject a fake subroutine call to cctx_init */
1127 cctx_prepare (aTHX_ (coro_cctx *)arg); 1105 cctx_prepare (aTHX_ (coro_cctx *)arg);
1128 1106
1129 /* cctx_run is the alternative tail of transfer() */ 1107 /* cctx_run is the alternative tail of transfer() */
1130 /* TODO: throwing an exception here might be deadly, VERIFY */
1131 transfer_tail (aTHX); 1108 transfer_tail (aTHX);
1132 1109
1133 /* somebody or something will hit me for both perl_run and PL_restartop */ 1110 /* somebody or something will hit me for both perl_run and PL_restartop */
1134 PL_restartop = PL_op; 1111 PL_restartop = PL_op;
1135 perl_run (PL_curinterp); 1112 perl_run (PL_curinterp);
… …
1291/** coroutine switching *****************************************************/ 1268/** coroutine switching *****************************************************/
1292 1269
1293static void 1270static void
1294transfer_check (pTHX_ struct coro *prev, struct coro *next) 1271transfer_check (pTHX_ struct coro *prev, struct coro *next)
1295{ 1272{
1273 /* TODO: throwing up here is considered harmful */
1274
1296 if (expect_true (prev != next)) 1275 if (expect_true (prev != next))
1297 { 1276 {
1298 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1277 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1299 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1278 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");
1300 1279
… …
1310#endif 1289#endif
1311 } 1290 }
1312} 1291}
1313 1292
1314/* always use the TRANSFER macro */ 1293/* always use the TRANSFER macro */
1315static void NOINLINE 1294static void NOINLINE /* noinline so we have a fixed stackframe */
1316transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1295transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1317{ 1296{
1318 dSTACKLEVEL; 1297 dSTACKLEVEL;
1319 1298
1320 /* sometimes transfer is only called to set idle_sp */ 1299 /* sometimes transfer is only called to set idle_sp */
… …
1377 ++next->usecount; 1356 ++next->usecount;
1378 1357
1379 if (expect_true (!next->cctx)) 1358 if (expect_true (!next->cctx))
1380 next->cctx = cctx_get (aTHX); 1359 next->cctx = cctx_get (aTHX);
1381 1360
1382 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1383 transfer_next = next;
1384
1385 if (expect_false (prev__cctx != next->cctx)) 1361 if (expect_false (prev__cctx != next->cctx))
1386 { 1362 {
1387 prev__cctx->top_env = PL_top_env; 1363 prev__cctx->top_env = PL_top_env;
1388 PL_top_env = next->cctx->top_env; 1364 PL_top_env = next->cctx->top_env;
1389 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1365 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
… …
1705 if (coro->flags & CF_RUNNING) 1681 if (coro->flags & CF_RUNNING)
1706 PL_runops = RUNOPS_DEFAULT; 1682 PL_runops = RUNOPS_DEFAULT;
1707 else 1683 else
1708 coro->slot->runops = RUNOPS_DEFAULT; 1684 coro->slot->runops = RUNOPS_DEFAULT;
1709 } 1685 }
1686}
1687
1688/*****************************************************************************/
1689/* schedule-like-function opcode (SLF) */
1690
1691static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1692static const CV *slf_cv;
1693static SV **slf_argv;
1694static int slf_argc, slf_arga; /* count, allocated */
1695static 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 */
1700static OP *
1701pp_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
1718static void
1719slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1720{
1721 prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1722}
1723
1724static void
1725slf_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
1734static void
1735slf_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
1742static void
1743slf_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
1753static void
1754slf_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
1760static void
1761slf_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
1767static void
1768slf_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 */
1783static OP *
1784pp_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
1872static void
1873api_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;
1710} 1920}
1711 1921
1712/*****************************************************************************/ 1922/*****************************************************************************/
1713/* PerlIO::cede */ 1923/* PerlIO::cede */
1714 1924
… …
1783 PerlIOBuf_get_cnt, 1993 PerlIOBuf_get_cnt,
1784 PerlIOBuf_set_ptrcnt, 1994 PerlIOBuf_set_ptrcnt,
1785}; 1995};
1786 1996
1787/*****************************************************************************/ 1997/*****************************************************************************/
1998/* Coro::Semaphore */
1788 1999
1789static const CV *slf_cv; /* for quick consistency check */
1790
1791static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1792static SV *slf_arg0;
1793static SV *slf_arg1;
1794static SV *slf_arg2;
1795
1796/* this restores the stack in the case we patched the entersub, to */
1797/* recreate the stack frame as perl will on following calls */
1798/* since entersub cleared the stack */
1799static OP *
1800pp_restore (pTHX)
1801{
1802 dSP;
1803
1804 PUSHMARK (SP);
1805
1806 EXTEND (SP, 3);
1807 if (slf_arg0) PUSHs (sv_2mortal (slf_arg0));
1808 if (slf_arg1) PUSHs (sv_2mortal (slf_arg1));
1809 if (slf_arg2) PUSHs (sv_2mortal (slf_arg2));
1810 PUSHs ((SV *)CvGV (slf_cv));
1811
1812 RETURNOP (slf_restore.op_first);
1813}
1814
1815static void 2000static void
1816slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1817{
1818 prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1819}
1820
1821static void
1822slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1823{
1824 assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1825
1826 frame->prepare = slf_prepare_set_stacklevel;
1827 frame->check = slf_check_nop;
1828 frame->data = (void *)SvIV (arg [0]);
1829}
1830
1831static void
1832slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1833{
1834 SV **arg = (SV **)slf_frame.data;
1835
1836 prepare_transfer (aTHX_ ta, arg [0], arg [1]);
1837}
1838
1839static void
1840slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1841{
1842 if (items != 2)
1843 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items);
1844
1845 frame->prepare = slf_prepare_transfer;
1846 frame->check = slf_check_nop;
1847 frame->data = (void *)arg; /* let's hope it will stay valid */
1848}
1849
1850static void
1851slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1852{
1853 frame->prepare = prepare_schedule;
1854 frame->check = slf_check_nop;
1855}
1856
1857static void
1858slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1859{
1860 frame->prepare = prepare_cede;
1861 frame->check = slf_check_nop;
1862}
1863
1864static void
1865slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1866{
1867 frame->prepare = prepare_cede_notself;
1868 frame->check = slf_check_nop;
1869}
1870
1871/* we hijack an hopefully unused CV flag for our purposes */
1872#define CVf_SLF 0x4000
1873
1874/*
1875 * these not obviously related functions are all rolled into one
1876 * function to increase chances that they all will call transfer with the same
1877 * stack offset
1878 * SLF stands for "schedule-like-function".
1879 */
1880static OP *
1881pp_slf (pTHX)
1882{
1883 I32 checkmark; /* mark SP to see how many elements check has pushed */
1884
1885 /* set up the slf frame, unless it has already been set-up */
1886 /* the latter happens when a new coro has been started */
1887 /* or when a new cctx was attached to an existing coroutine */
1888 if (expect_true (!slf_frame.prepare))
1889 {
1890 /* first iteration */
1891 dSP;
1892 SV **arg = PL_stack_base + TOPMARK + 1;
1893 int items = SP - arg; /* args without function object */
1894 SV *gv = *sp;
1895
1896 /* do a quick consistency check on the "function" object, and if it isn't */
1897 /* for us, divert to the real entersub */
1898 if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF))
1899 return PL_ppaddr[OP_ENTERSUB](aTHX);
1900
1901 /* pop args */
1902 SP = PL_stack_base + POPMARK;
1903
1904 if (!(PL_op->op_flags & OPf_STACKED))
1905 {
1906 /* ampersand-form of call, use @_ instead of stack */
1907 AV *av = GvAV (PL_defgv);
1908 arg = AvARRAY (av);
1909 items = AvFILLp (av) + 1;
1910 }
1911
1912 PUTBACK;
1913
1914 /* now call the init function, which needs to set up slf_frame */
1915 ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr)
1916 (aTHX_ &slf_frame, GvCV (gv), arg, items);
1917 }
1918
1919 /* now that we have a slf_frame, interpret it! */
1920 /* we use a callback system not to make the code needlessly */
1921 /* complicated, but so we can run multiple perl coros from one cctx */
1922
1923 do
1924 {
1925 struct coro_transfer_args ta;
1926
1927 slf_frame.prepare (aTHX_ &ta);
1928 TRANSFER (ta, 0);
1929
1930 checkmark = PL_stack_sp - PL_stack_base;
1931 }
1932 while (slf_frame.check (aTHX_ &slf_frame));
1933
1934 {
1935 dSP;
1936 SV **bot = PL_stack_base + checkmark;
1937 int gimme = GIMME_V;
1938
1939 slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */
1940
1941 /* make sure we put something on the stack in scalar context */
1942 if (gimme == G_SCALAR)
1943 {
1944 if (sp == bot)
1945 XPUSHs (&PL_sv_undef);
1946
1947 SP = bot + 1;
1948 }
1949
1950 PUTBACK;
1951 }
1952
1953 return NORMAL;
1954}
1955
1956static void
1957api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items)
1958{
1959 assert (("FATAL: SLF call with illegal CV value", !CvANON (cv)));
1960
1961 if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]
1962 && PL_op->op_ppaddr != pp_slf)
1963 croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");
1964
1965 if (items > 3)
1966 croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items);
1967
1968 CvFLAGS (cv) |= CVf_SLF;
1969 CvXSUBANY (cv).any_ptr = (void *)init_cb;
1970 slf_cv = cv;
1971
1972 /* we patch the op, and then re-run the whole call */
1973 /* we have to put the same argument on the stack for this to work */
1974 /* and this will be done by pp_restore */
1975 slf_restore.op_next = (OP *)&slf_restore;
1976 slf_restore.op_type = OP_CUSTOM;
1977 slf_restore.op_ppaddr = pp_restore;
1978 slf_restore.op_first = PL_op;
1979
1980 slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0;
1981 slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0;
1982 slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0;
1983
1984 PL_op->op_ppaddr = pp_slf;
1985
1986 PL_op = (OP *)&slf_restore;
1987}
1988
1989/*****************************************************************************/
1990
1991static void
1992coro_semaphore_adjust (pTHX_ AV *av, int adjust) 2001coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
1993{ 2002{
1994 SV *count_sv = AvARRAY (av)[0]; 2003 SV *count_sv = AvARRAY (av)[0];
1995 IV count = SvIVX (count_sv); 2004 IV count = SvIVX (count_sv);
1996 2005
1997 count += adjust; 2006 count += adjust;
1998 SvIVX (count_sv) = count; 2007 SvIVX (count_sv) = count;
1999 2008
2000 /* now wake up as many waiters as possible */ 2009 /* now wake up as many waiters as are expected to lock */
2001 while (count > 0 && AvFILLp (av) >= count) 2010 while (count > 0 && AvFILLp (av) > 0)
2002 { 2011 {
2003 SV *cb; 2012 SV *cb;
2004 2013
2005 /* swap first two elements so we can shift a waiter */ 2014 /* swap first two elements so we can shift a waiter */
2006 AvARRAY (av)[0] = AvARRAY (av)[1]; 2015 AvARRAY (av)[0] = AvARRAY (av)[1];
… …
2019} 2028}
2020 2029
2021static void 2030static void
2022coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2031coro_semaphore_on_destroy (pTHX_ struct coro *coro)
2023{ 2032{
2024 /* call $sem->adjust (0) to possibly wake up some waiters */ 2033 /* call $sem->adjust (0) to possibly wake up some other waiters */
2025 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2034 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2026} 2035}
2027 2036
2028static int 2037static int
2029slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2038slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
… …
2060 2069
2061 if (SvIVX (AvARRAY (av)[0]) > 0) 2070 if (SvIVX (AvARRAY (av)[0]) > 0)
2062 { 2071 {
2063 frame->data = (void *)av; 2072 frame->data = (void *)av;
2064 frame->prepare = prepare_nop; 2073 frame->prepare = prepare_nop;
2074 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2065 } 2075 }
2066 else 2076 else
2067 { 2077 {
2068 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2078 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2069 2079
2070 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2080 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2071 frame->prepare = prepare_schedule; 2081 frame->prepare = prepare_schedule;
2072 2082
2073 /* to avoid race conditions when a woken-up coro gets terminated */ 2083 /* to avoid race conditions when a woken-up coro gets terminated */
2074 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2084 /* we arrange for a temporary on_destroy that calls adjust (0) */
2085 assert (!SvSTATE_current->on_destroy);//D
2075 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2086 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2076 } 2087 }
2077 2088
2078 frame->check = slf_check_semaphore_down; 2089 frame->check = slf_check_semaphore_down;
2079 2090
2080} 2091}
2081 2092
2082/*****************************************************************************/ 2093/*****************************************************************************/
2094/* gensub: simple closure generation utility */
2083 2095
2084#define GENSUB_ARG CvXSUBANY (cv).any_ptr 2096#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2085 2097
2086/* create a closure from XS, returns a code reference */ 2098/* create a closure from XS, returns a code reference */
2087/* the arg can be accessed via GENSUB_ARG from the callback */ 2099/* the arg can be accessed via GENSUB_ARG from the callback */
2088/* the callback must use dXSARGS/XSRETURN */ 2100/* the callback must use dXSARGS/XSRETURN */
2089static SV * 2101static SV *
2090gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) 2102gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2091{ 2103{
2092 CV *cv = (CV *)NEWSV (0, 0); 2104 CV *cv = (CV *)newSV (0);
2093 2105
2094 sv_upgrade ((SV *)cv, SVt_PVCV); 2106 sv_upgrade ((SV *)cv, SVt_PVCV);
2095 2107
2096 CvANON_on (cv); 2108 CvANON_on (cv);
2097 CvISXSUB_on (cv); 2109 CvISXSUB_on (cv);
2098 CvXSUB (cv) = xsub; 2110 CvXSUB (cv) = xsub;
2099 GENSUB_ARG = arg; 2111 GENSUB_ARG = arg;
2100 2112
2101 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 */
2122struct io_state
2123{
2124 int errorno;
2125 I32 laststype; /* U16 in 5.10.0 */
2126 int laststatval;
2127 Stat_t statcache;
2128};
2129
2130static void
2131coro_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
2168static int
2169slf_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
2205static void
2206slf_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
2265static void
2266coro_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;
2102} 2274}
2103 2275
2104/*****************************************************************************/ 2276/*****************************************************************************/
2105 2277
2106MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2278MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
… …
2206 RETVAL 2378 RETVAL
2207 2379
2208void 2380void
2209_set_stacklevel (...) 2381_set_stacklevel (...)
2210 CODE: 2382 CODE:
2211 api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); 2383 CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2212 2384
2213void 2385void
2214transfer (...) 2386transfer (...)
2215 PROTOTYPE: $$ 2387 PROTOTYPE: $$
2216 CODE: 2388 CODE:
2217 api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); 2389 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2218 2390
2219bool 2391bool
2220_destroy (SV *coro_sv) 2392_destroy (SV *coro_sv)
2221 CODE: 2393 CODE:
2222 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2394 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
2340 2512
2341void 2513void
2342throw (Coro::State self, SV *throw = &PL_sv_undef) 2514throw (Coro::State self, SV *throw = &PL_sv_undef)
2343 PROTOTYPE: $;$ 2515 PROTOTYPE: $;$
2344 CODE: 2516 CODE:
2517{
2518 struct coro *current = SvSTATE_current;
2519 SV **throwp = self == current ? &coro_throw : &self->throw;
2345 SvREFCNT_dec (self->throw); 2520 SvREFCNT_dec (*throwp);
2346 self->throw = SvOK (throw) ? newSVsv (throw) : 0; 2521 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2522}
2347 2523
2348void 2524void
2349api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2525api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2350 PROTOTYPE: $;$ 2526 PROTOTYPE: $;$
2351 C_ARGS: aTHX_ coro, flags 2527 C_ARGS: aTHX_ coro, flags
… …
2400 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 2576 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2401 2577
2402 SV *tmp = *src; *src = *dst; *dst = tmp; 2578 SV *tmp = *src; *src = *dst; *dst = tmp;
2403 } 2579 }
2404 2580
2581
2405MODULE = Coro::State PACKAGE = Coro 2582MODULE = Coro::State PACKAGE = Coro
2406 2583
2407BOOT: 2584BOOT:
2408{ 2585{
2409 int i; 2586 int i;
… …
2445} 2622}
2446 2623
2447void 2624void
2448schedule (...) 2625schedule (...)
2449 CODE: 2626 CODE:
2450 api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); 2627 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2451 2628
2452void 2629void
2453cede (...) 2630cede (...)
2454 CODE: 2631 CODE:
2455 api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); 2632 CORO_EXECUTE_SLF_XS (slf_init_cede);
2456 2633
2457void 2634void
2458cede_notself (...) 2635cede_notself (...)
2459 CODE: 2636 CODE:
2460 api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); 2637 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
2461 2638
2462void 2639void
2463_set_current (SV *current) 2640_set_current (SV *current)
2464 PROTOTYPE: $ 2641 PROTOTYPE: $
2465 CODE: 2642 CODE:
… …
2553 2730
2554void 2731void
2555_pool_2 (SV *cb) 2732_pool_2 (SV *cb)
2556 CODE: 2733 CODE:
2557{ 2734{
2558 struct coro *coro = SvSTATE_current; 2735 HV *hv = (HV *)SvRV (coro_current);
2736 struct coro *coro = SvSTATE_hv ((SV *)hv);
2559 2737
2560 sv_setsv (cb, &PL_sv_undef); 2738 sv_setsv (cb, &PL_sv_undef);
2561 2739
2562 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2740 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2563 coro->saved_deffh = 0; 2741 coro->saved_deffh = 0;
… …
2570 SvREFCNT_dec (old); 2748 SvREFCNT_dec (old);
2571 croak ("\3async_pool terminate\2\n"); 2749 croak ("\3async_pool terminate\2\n");
2572 } 2750 }
2573 2751
2574 av_clear (GvAV (PL_defgv)); 2752 av_clear (GvAV (PL_defgv));
2575 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 2753 hv_store (hv, "desc", sizeof ("desc") - 1,
2576 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 2754 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2577 2755
2578 coro->prio = 0; 2756 coro->prio = 0;
2579 2757
2580 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2758 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
… …
2582 2760
2583 av_push (av_async_pool, newSVsv (coro_current)); 2761 av_push (av_async_pool, newSVsv (coro_current));
2584} 2762}
2585 2763
2586 2764
2587MODULE = Coro::State PACKAGE = Coro::AIO
2588
2589void
2590_get_state (SV *self)
2591 PROTOTYPE: $
2592 PPCODE:
2593{
2594 AV *defav = GvAV (PL_defgv);
2595 AV *av = newAV ();
2596 int i;
2597 SV *data_sv = newSV (sizeof (struct io_state));
2598 struct io_state *data = (struct io_state *)SvPVX (data_sv);
2599 SvCUR_set (data_sv, sizeof (struct io_state));
2600 SvPOK_only (data_sv);
2601
2602 data->errorno = errno;
2603 data->laststype = PL_laststype;
2604 data->laststatval = PL_laststatval;
2605 data->statcache = PL_statcache;
2606
2607 av_extend (av, AvFILLp (defav) + 1 + 1);
2608
2609 for (i = 0; i <= AvFILLp (defav); ++i)
2610 av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
2611
2612 av_push (av, data_sv);
2613
2614 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
2615
2616 api_ready (aTHX_ self);
2617}
2618
2619void
2620_set_state (SV *state)
2621 PROTOTYPE: $
2622 PPCODE:
2623{
2624 AV *av = (AV *)SvRV (state);
2625 struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
2626 int i;
2627
2628 errno = data->errorno;
2629 PL_laststype = data->laststype;
2630 PL_laststatval = data->laststatval;
2631 PL_statcache = data->statcache;
2632
2633 EXTEND (SP, AvFILLp (av));
2634 for (i = 0; i < AvFILLp (av); ++i)
2635 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
2636}
2637
2638
2639MODULE = Coro::State PACKAGE = Coro::AnyEvent
2640
2641BOOT:
2642 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2643
2644void
2645_schedule (...)
2646 CODE:
2647{
2648 static int incede;
2649
2650 api_cede_notself (aTHX);
2651
2652 ++incede;
2653 while (coro_nready >= incede && api_cede (aTHX))
2654 ;
2655
2656 sv_setsv (sv_activity, &PL_sv_undef);
2657 if (coro_nready >= incede)
2658 {
2659 PUSHMARK (SP);
2660 PUTBACK;
2661 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
2662 SPAGAIN;
2663 }
2664
2665 --incede;
2666}
2667
2668
2669MODULE = Coro::State PACKAGE = PerlIO::cede 2765MODULE = Coro::State PACKAGE = PerlIO::cede
2670 2766
2671BOOT: 2767BOOT:
2672 PerlIO_define_layer (aTHX_ &PerlIO_cede); 2768 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2769
2673 2770
2674MODULE = Coro::State PACKAGE = Coro::Semaphore 2771MODULE = Coro::State PACKAGE = Coro::Semaphore
2675 2772
2676SV * 2773SV *
2677new (SV *klass, SV *count_ = 0) 2774new (SV *klass, SV *count_ = 0)
… …
2700 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 2797 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2701 2798
2702void 2799void
2703down (SV *self) 2800down (SV *self)
2704 CODE: 2801 CODE:
2705 api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); 2802 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
2706 2803
2707void 2804void
2708try (SV *self) 2805try (SV *self)
2709 PPCODE: 2806 PPCODE:
2710{ 2807{
… …
2737 for (i = 1; i <= AvFILLp (av); ++i) 2834 for (i = 1; i <= AvFILLp (av); ++i)
2738 PUSHs (newSVsv (AvARRAY (av)[i])); 2835 PUSHs (newSVsv (AvARRAY (av)[i]));
2739 } 2836 }
2740} 2837}
2741 2838
2839
2840MODULE = Coro::State PACKAGE = Coro::AnyEvent
2841
2842BOOT:
2843 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2844
2845void
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
2870MODULE = Coro::State PACKAGE = Coro::AIO
2871
2872void
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

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