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Comparing Coro/Coro/State.xs (file contents):
Revision 1.226 by root, Fri Apr 4 20:07:35 2008 UTC vs.
Revision 1.238 by root, Sat May 31 12:10:55 2008 UTC

10#include "patchlevel.h" 10#include "patchlevel.h"
11 11
12#include <stdio.h> 12#include <stdio.h>
13#include <errno.h> 13#include <errno.h>
14#include <assert.h> 14#include <assert.h>
15
16#ifdef WIN32
17# undef setjmp
18# undef longjmp
19# undef _exit
20# define setjmp _setjmp // deep magic, don't ask
21#else
15#include <inttypes.h> /* portable stdint.h */ 22# include <inttypes.h> /* most portable stdint.h */
23#endif
16 24
17#ifdef HAVE_MMAP 25#ifdef HAVE_MMAP
18# include <unistd.h> 26# include <unistd.h>
19# include <sys/mman.h> 27# include <sys/mman.h>
20# ifndef MAP_ANONYMOUS 28# ifndef MAP_ANONYMOUS
163/* async_pool helper stuff */ 171/* async_pool helper stuff */
164static SV *sv_pool_rss; 172static SV *sv_pool_rss;
165static SV *sv_pool_size; 173static SV *sv_pool_size;
166static AV *av_async_pool; 174static AV *av_async_pool;
167 175
176/* Coro::AnyEvent */
177static SV *sv_activity;
178
168static struct coro_cctx *cctx_first; 179static struct coro_cctx *cctx_first;
169static int cctx_count, cctx_idle; 180static int cctx_count, cctx_idle;
170 181
171enum { 182enum {
172 CC_MAPPED = 0x01, 183 CC_MAPPED = 0x01,
257#define PRIO_IDLE -3 268#define PRIO_IDLE -3
258#define PRIO_MIN -4 269#define PRIO_MIN -4
259 270
260/* for Coro.pm */ 271/* for Coro.pm */
261static SV *coro_current; 272static SV *coro_current;
273static SV *coro_readyhook;
262static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 274static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
263static int coro_nready; 275static int coro_nready;
264static struct coro *coro_first; 276static struct coro *coro_first;
265 277
266/** lowlevel stuff **********************************************************/ 278/** lowlevel stuff **********************************************************/
267 279
268static SV * 280static SV *
269coro_get_sv (pTHX_ const char *name, int create) 281coro_get_sv (pTHX_ const char *name, int create)
270{ 282{
271#if PERL_VERSION_ATLEAST (5,9,0) 283#if PERL_VERSION_ATLEAST (5,10,0)
272 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 284 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
273 get_sv (name, create); 285 get_sv (name, create);
274#endif 286#endif
275 return get_sv (name, create); 287 return get_sv (name, create);
276} 288}
277 289
278static AV * 290static AV *
279coro_get_av (pTHX_ const char *name, int create) 291coro_get_av (pTHX_ const char *name, int create)
280{ 292{
281#if PERL_VERSION_ATLEAST (5,9,0) 293#if PERL_VERSION_ATLEAST (5,10,0)
282 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 294 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
283 get_av (name, create); 295 get_av (name, create);
284#endif 296#endif
285 return get_av (name, create); 297 return get_av (name, create);
286} 298}
287 299
288static HV * 300static HV *
289coro_get_hv (pTHX_ const char *name, int create) 301coro_get_hv (pTHX_ const char *name, int create)
290{ 302{
291#if PERL_VERSION_ATLEAST (5,9,0) 303#if PERL_VERSION_ATLEAST (5,10,0)
292 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 304 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
293 get_hv (name, create); 305 get_hv (name, create);
294#endif 306#endif
295 return get_hv (name, create); 307 return get_hv (name, create);
296} 308}
301 AV *padlist = CvPADLIST (cv); 313 AV *padlist = CvPADLIST (cv);
302 AV *newpadlist, *newpad; 314 AV *newpadlist, *newpad;
303 315
304 newpadlist = newAV (); 316 newpadlist = newAV ();
305 AvREAL_off (newpadlist); 317 AvREAL_off (newpadlist);
306#if PERL_VERSION_ATLEAST (5,9,0) 318#if PERL_VERSION_ATLEAST (5,10,0)
307 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 319 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
308#else 320#else
309 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 321 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
310#endif 322#endif
311 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 323 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
502 514
503 if (expect_true (CvDEPTH (cv))) 515 if (expect_true (CvDEPTH (cv)))
504 { 516 {
505 EXTEND (SP, 3); 517 EXTEND (SP, 3);
506 PUSHs ((SV *)CvPADLIST (cv)); 518 PUSHs ((SV *)CvPADLIST (cv));
507 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 519 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
508 PUSHs ((SV *)cv); 520 PUSHs ((SV *)cv);
509 521
510 CvDEPTH (cv) = 0; 522 CvDEPTH (cv) = 0;
511 get_padlist (aTHX_ cv); 523 get_padlist (aTHX_ cv);
512 } 524 }
592 604
593 New(54,PL_savestack,24,ANY); 605 New(54,PL_savestack,24,ANY);
594 PL_savestack_ix = 0; 606 PL_savestack_ix = 0;
595 PL_savestack_max = 24; 607 PL_savestack_max = 24;
596 608
597#if !PERL_VERSION_ATLEAST (5,9,0) 609#if !PERL_VERSION_ATLEAST (5,10,0)
598 New(54,PL_retstack,4,OP*); 610 New(54,PL_retstack,4,OP*);
599 PL_retstack_ix = 0; 611 PL_retstack_ix = 0;
600 PL_retstack_max = 4; 612 PL_retstack_max = 4;
601#endif 613#endif
602} 614}
625 637
626 Safefree (PL_tmps_stack); 638 Safefree (PL_tmps_stack);
627 Safefree (PL_markstack); 639 Safefree (PL_markstack);
628 Safefree (PL_scopestack); 640 Safefree (PL_scopestack);
629 Safefree (PL_savestack); 641 Safefree (PL_savestack);
630#if !PERL_VERSION_ATLEAST (5,9,0) 642#if !PERL_VERSION_ATLEAST (5,10,0)
631 Safefree (PL_retstack); 643 Safefree (PL_retstack);
632#endif 644#endif
633} 645}
634 646
635static size_t 647static size_t
659 rss += slot->tmps_max * sizeof (SV *); 671 rss += slot->tmps_max * sizeof (SV *);
660 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); 672 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
661 rss += slot->scopestack_max * sizeof (I32); 673 rss += slot->scopestack_max * sizeof (I32);
662 rss += slot->savestack_max * sizeof (ANY); 674 rss += slot->savestack_max * sizeof (ANY);
663 675
664#if !PERL_VERSION_ATLEAST (5,9,0) 676#if !PERL_VERSION_ATLEAST (5,10,0)
665 rss += slot->retstack_max * sizeof (OP *); 677 rss += slot->retstack_max * sizeof (OP *);
666#endif 678#endif
667 } 679 }
668 680
669 return rss; 681 return rss;
671 683
672/** coroutine stack handling ************************************************/ 684/** coroutine stack handling ************************************************/
673 685
674static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); 686static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
675static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); 687static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
688
689/* apparently < 5.8.8 */
690#undef MgPV_nolen_const
691#ifndef MgPV_nolen_const
692#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
693 SvPV_nolen_const((SV*)((mg)->mg_ptr)) : \
694 (const char*)(mg)->mg_ptr)
695#endif
676 696
677/* 697/*
678 * This overrides the default magic get method of %SIG elements. 698 * This overrides the default magic get method of %SIG elements.
679 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 699 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
680 * and instead of tryign to save and restore the hash elements, we just provide 700 * and instead of tryign to save and restore the hash elements, we just provide
712 if (svp) 732 if (svp)
713 { 733 {
714 SV *old = *svp; 734 SV *old = *svp;
715 *svp = newSVsv (sv); 735 *svp = newSVsv (sv);
716 SvREFCNT_dec (old); 736 SvREFCNT_dec (old);
717 return; 737 return 0;
718 } 738 }
719 } 739 }
720 740
721 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; 741 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
722} 742}
736 PL_curpm = 0; 756 PL_curpm = 0;
737 PL_curpad = 0; 757 PL_curpad = 0;
738 PL_localizing = 0; 758 PL_localizing = 0;
739 PL_dirty = 0; 759 PL_dirty = 0;
740 PL_restartop = 0; 760 PL_restartop = 0;
761#if PERL_VERSION_ATLEAST (5,10,0)
762 PL_parser = 0;
763#endif
741 764
742 /* recreate the die/warn hooks */ 765 /* recreate the die/warn hooks */
743 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 766 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
744 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 767 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
745 768
1126 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1149 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1127 1150
1128 if (expect_false (next->flags & CF_DESTROYED)) 1151 if (expect_false (next->flags & CF_DESTROYED))
1129 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1152 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1130 1153
1131 if (
1132#if PERL_VERSION_ATLEAST (5,9,0) 1154#if !PERL_VERSION_ATLEAST (5,10,0)
1133 expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING)
1134#else
1135 expect_false (PL_lex_state != LEX_NOTPARSING) 1155 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1136#endif
1137 )
1138 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1156 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
1157#endif
1139 } 1158 }
1140} 1159}
1141 1160
1142/* always use the TRANSFER macro */ 1161/* always use the TRANSFER macro */
1143static void NOINLINE 1162static void NOINLINE
1144transfer (pTHX_ struct coro *prev, struct coro *next) 1163transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1145{ 1164{
1146 dSTACKLEVEL; 1165 dSTACKLEVEL;
1147 static volatile int has_throw; 1166 static volatile int has_throw;
1148 1167
1149 /* sometimes transfer is only called to set idle_sp */ 1168 /* sometimes transfer is only called to set idle_sp */
1183 load_perl (aTHX_ next); 1202 load_perl (aTHX_ next);
1184 1203
1185 prev__cctx = prev->cctx; 1204 prev__cctx = prev->cctx;
1186 1205
1187 /* possibly "free" the cctx */ 1206 /* possibly "free" the cctx */
1188 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) 1207 if (expect_true (
1208 prev__cctx->idle_sp == STACKLEVEL
1209 && !(prev__cctx->flags & CC_TRACE)
1210 && !force_cctx
1211 ))
1189 { 1212 {
1190 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1213 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1191 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1214 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1192 1215
1193 prev->cctx = 0; 1216 prev->cctx = 0;
1236struct transfer_args 1259struct transfer_args
1237{ 1260{
1238 struct coro *prev, *next; 1261 struct coro *prev, *next;
1239}; 1262};
1240 1263
1241#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1264#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1242#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1265#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1243 1266
1244/** high level stuff ********************************************************/ 1267/** high level stuff ********************************************************/
1245 1268
1246static int 1269static int
1340{ 1363{
1341 dTHX; 1364 dTHX;
1342 struct transfer_args ta; 1365 struct transfer_args ta;
1343 1366
1344 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1367 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1345 TRANSFER (ta); 1368 TRANSFER (ta, 1);
1346} 1369}
1347 1370
1348/** Coro ********************************************************************/ 1371/** Coro ********************************************************************/
1349 1372
1350static void 1373static void
1368static int 1391static int
1369api_ready (SV *coro_sv) 1392api_ready (SV *coro_sv)
1370{ 1393{
1371 dTHX; 1394 dTHX;
1372 struct coro *coro; 1395 struct coro *coro;
1396 SV *sv_hook;
1397 void (*xs_hook)(void);
1373 1398
1374 if (SvROK (coro_sv)) 1399 if (SvROK (coro_sv))
1375 coro_sv = SvRV (coro_sv); 1400 coro_sv = SvRV (coro_sv);
1376 1401
1377 coro = SvSTATE (coro_sv); 1402 coro = SvSTATE (coro_sv);
1380 return 0; 1405 return 0;
1381 1406
1382 coro->flags |= CF_READY; 1407 coro->flags |= CF_READY;
1383 1408
1384 LOCK; 1409 LOCK;
1410
1411 sv_hook = coro_nready ? 0 : coro_readyhook;
1412 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1413
1385 coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); 1414 coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1386 ++coro_nready; 1415 ++coro_nready;
1416
1387 UNLOCK; 1417 UNLOCK;
1418
1419 if (sv_hook)
1420 {
1421 dSP;
1422
1423 ENTER;
1424 SAVETMPS;
1425
1426 PUSHMARK (SP);
1427 PUTBACK;
1428 call_sv (sv_hook, G_DISCARD);
1429 SPAGAIN;
1430
1431 FREETMPS;
1432 LEAVE;
1433 }
1434
1435 if (xs_hook)
1436 xs_hook ();
1388 1437
1389 return 1; 1438 return 1;
1390} 1439}
1391 1440
1392static int 1441static int
1481{ 1530{
1482 dTHX; 1531 dTHX;
1483 struct transfer_args ta; 1532 struct transfer_args ta;
1484 1533
1485 prepare_schedule (aTHX_ &ta); 1534 prepare_schedule (aTHX_ &ta);
1486 TRANSFER (ta); 1535 TRANSFER (ta, 1);
1487} 1536}
1488 1537
1489static int 1538static int
1490api_cede (void) 1539api_cede (void)
1491{ 1540{
1494 1543
1495 prepare_cede (aTHX_ &ta); 1544 prepare_cede (aTHX_ &ta);
1496 1545
1497 if (expect_true (ta.prev != ta.next)) 1546 if (expect_true (ta.prev != ta.next))
1498 { 1547 {
1499 TRANSFER (ta); 1548 TRANSFER (ta, 1);
1500 return 1; 1549 return 1;
1501 } 1550 }
1502 else 1551 else
1503 return 0; 1552 return 0;
1504} 1553}
1509 dTHX; 1558 dTHX;
1510 struct transfer_args ta; 1559 struct transfer_args ta;
1511 1560
1512 if (prepare_cede_notself (aTHX_ &ta)) 1561 if (prepare_cede_notself (aTHX_ &ta))
1513 { 1562 {
1514 TRANSFER (ta); 1563 TRANSFER (ta, 1);
1515 return 1; 1564 return 1;
1516 } 1565 }
1517 else 1566 else
1518 return 0; 1567 return 0;
1519} 1568}
1578 main_top_env = PL_top_env; 1627 main_top_env = PL_top_env;
1579 1628
1580 while (main_top_env->je_prev) 1629 while (main_top_env->je_prev)
1581 main_top_env = main_top_env->je_prev; 1630 main_top_env = main_top_env->je_prev;
1582 1631
1583 coroapi.ver = CORO_API_VERSION; 1632 coroapi.ver = CORO_API_VERSION;
1584 coroapi.rev = CORO_API_REVISION; 1633 coroapi.rev = CORO_API_REVISION;
1585 coroapi.transfer = api_transfer; 1634 coroapi.transfer = api_transfer;
1586 1635
1587 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1636 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1588} 1637}
1589 1638
1590SV * 1639SV *
1661 } 1710 }
1662 SPAGAIN; 1711 SPAGAIN;
1663 1712
1664 BARRIER; 1713 BARRIER;
1665 PUTBACK; 1714 PUTBACK;
1666 TRANSFER (ta); 1715 TRANSFER (ta, 0);
1667 SPAGAIN; /* might be the sp of a different coroutine now */ 1716 SPAGAIN; /* might be the sp of a different coroutine now */
1668 /* be extra careful not to ever do anything after TRANSFER */ 1717 /* be extra careful not to ever do anything after TRANSFER */
1669} 1718}
1670 1719
1671bool 1720bool
1674 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 1723 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1675 OUTPUT: 1724 OUTPUT:
1676 RETVAL 1725 RETVAL
1677 1726
1678void 1727void
1679_exit (code) 1728_exit (int code)
1680 int code
1681 PROTOTYPE: $ 1729 PROTOTYPE: $
1682 CODE: 1730 CODE:
1683 _exit (code); 1731 _exit (code);
1684 1732
1685int 1733int
1776 1824
1777void 1825void
1778api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 1826api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1779 1827
1780SV * 1828SV *
1781has_stack (Coro::State coro) 1829has_cctx (Coro::State coro)
1782 PROTOTYPE: $ 1830 PROTOTYPE: $
1783 CODE: 1831 CODE:
1784 RETVAL = boolSV (!!coro->cctx); 1832 RETVAL = boolSV (!!coro->cctx);
1785 OUTPUT: 1833 OUTPUT:
1786 RETVAL 1834 RETVAL
1817 1865
1818BOOT: 1866BOOT:
1819{ 1867{
1820 int i; 1868 int i;
1821 1869
1870 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1822 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 1871 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1823 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 1872 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1824 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1825 1873
1826 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 1874 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1827 SvREADONLY_on (coro_current); 1875 SvREADONLY_on (coro_current);
1828 1876
1829 coro_stash = gv_stashpv ("Coro", TRUE); 1877 coro_stash = gv_stashpv ("Coro", TRUE);
1860_set_current (SV *current) 1908_set_current (SV *current)
1861 PROTOTYPE: $ 1909 PROTOTYPE: $
1862 CODE: 1910 CODE:
1863 SvREFCNT_dec (SvRV (coro_current)); 1911 SvREFCNT_dec (SvRV (coro_current));
1864 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); 1912 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1913
1914void
1915_set_readyhook (SV *hook)
1916 PROTOTYPE: $
1917 CODE:
1918 LOCK;
1919 SvREFCNT_dec (coro_readyhook);
1920 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
1921 UNLOCK;
1865 1922
1866int 1923int
1867prio (Coro::State coro, int newprio = 0) 1924prio (Coro::State coro, int newprio = 0)
1868 ALIAS: 1925 ALIAS:
1869 nice = 1 1926 nice = 1
2026 PL_laststype = data->laststype; 2083 PL_laststype = data->laststype;
2027 PL_laststatval = data->laststatval; 2084 PL_laststatval = data->laststatval;
2028 PL_statcache = data->statcache; 2085 PL_statcache = data->statcache;
2029} 2086}
2030 2087
2088
2089MODULE = Coro::State PACKAGE = Coro::AnyEvent
2090
2091BOOT:
2092 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2093
2094SV *
2095_schedule (...)
2096 PROTOTYPE: @
2097 CODE:
2098{
2099 static int incede;
2100
2101 api_cede_notself ();
2102
2103 ++incede;
2104 while (coro_nready >= incede && api_cede ())
2105 ;
2106
2107 sv_setsv (sv_activity, &PL_sv_undef);
2108 if (coro_nready >= incede)
2109 {
2110 PUSHMARK (SP);
2111 PUTBACK;
2112 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
2113 SPAGAIN;
2114 }
2115
2116 --incede;
2117}
2118

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