ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.364 by root, Thu Jul 16 02:19:17 2009 UTC vs.
Revision 1.397 by root, Fri May 6 21:15:17 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
… …
12 17
13#include <stdio.h> 18#include <stdio.h>
14#include <errno.h> 19#include <errno.h>
15#include <assert.h> 20#include <assert.h>
16 21
17#ifdef WIN32 22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
25
26#if defined(_WIN32)
27# undef HAS_GETTIMEOFDAY
18# undef setjmp 28# undef setjmp
19# undef longjmp 29# undef longjmp
20# undef _exit 30# undef _exit
21# define setjmp _setjmp /* deep magic */ 31# define setjmp _setjmp /* deep magic */
22#else 32#else
… …
116static void (*u2time)(pTHX_ UV ret[2]); 126static void (*u2time)(pTHX_ UV ret[2]);
117 127
118/* we hijack an hopefully unused CV flag for our purposes */ 128/* we hijack an hopefully unused CV flag for our purposes */
119#define CVf_SLF 0x4000 129#define CVf_SLF 0x4000
120static OP *pp_slf (pTHX); 130static OP *pp_slf (pTHX);
131static void slf_destroy (pTHX_ struct coro *coro);
121 132
122static U32 cctx_gen; 133static U32 cctx_gen;
123static size_t cctx_stacksize = CORO_STACKSIZE; 134static size_t cctx_stacksize = CORO_STACKSIZE;
124static struct CoroAPI coroapi; 135static struct CoroAPI coroapi;
125static AV *main_mainstack; /* used to differentiate between $main and others */ 136static AV *main_mainstack; /* used to differentiate between $main and others */
… …
142static SV *sv_pool_size; 153static SV *sv_pool_size;
143static SV *sv_async_pool_idle; /* description string */ 154static SV *sv_async_pool_idle; /* description string */
144static AV *av_async_pool; /* idle pool */ 155static AV *av_async_pool; /* idle pool */
145static SV *sv_Coro; /* class string */ 156static SV *sv_Coro; /* class string */
146static CV *cv_pool_handler; 157static CV *cv_pool_handler;
147static CV *cv_coro_state_new;
148 158
149/* Coro::AnyEvent */ 159/* Coro::AnyEvent */
150static SV *sv_activity; 160static SV *sv_activity;
151 161
152/* enable processtime/realtime profiling */ 162/* enable processtime/realtime profiling */
… …
187 int valgrind_id; 197 int valgrind_id;
188#endif 198#endif
189 unsigned char flags; 199 unsigned char flags;
190} coro_cctx; 200} coro_cctx;
191 201
192coro_cctx *cctx_current; /* the currently running cctx */ 202static coro_cctx *cctx_current; /* the currently running cctx */
193 203
194/*****************************************************************************/ 204/*****************************************************************************/
195 205
196enum { 206enum {
197 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
198 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
199 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
200 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 210 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
201 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 211 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
212 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
202}; 213};
203 214
204/* the structure where most of the perl state is stored, overlaid on the cxstack */ 215/* the structure where most of the perl state is stored, overlaid on the cxstack */
205typedef struct 216typedef struct
206{ 217{
… …
232 CV *startcv; /* the CV to execute */ 243 CV *startcv; /* the CV to execute */
233 AV *args; /* data associated with this coroutine (initial args) */ 244 AV *args; /* data associated with this coroutine (initial args) */
234 int refcnt; /* coroutines are refcounted, yes */ 245 int refcnt; /* coroutines are refcounted, yes */
235 int flags; /* CF_ flags */ 246 int flags; /* CF_ flags */
236 HV *hv; /* the perl hash associated with this coro, if any */ 247 HV *hv; /* the perl hash associated with this coro, if any */
237 void (*on_destroy)(pTHX_ struct coro *coro);
238 248
239 /* statistics */ 249 /* statistics */
240 int usecount; /* number of transfers to this coro */ 250 int usecount; /* number of transfers to this coro */
241 251
242 /* coro process data */ 252 /* coro process data */
… …
251 261
252 /* on_enter/on_leave */ 262 /* on_enter/on_leave */
253 AV *on_enter; 263 AV *on_enter;
254 AV *on_leave; 264 AV *on_leave;
255 265
266 /* swap_sv */
267 AV *swap_sv;
268
256 /* times */ 269 /* times */
257 coro_ts t_cpu, t_real; 270 coro_ts t_cpu, t_real;
258 271
259 /* linked list */ 272 /* linked list */
260 struct coro *next, *prev; 273 struct coro *next, *prev;
… …
263typedef struct coro *Coro__State; 276typedef struct coro *Coro__State;
264typedef struct coro *Coro__State_or_hashref; 277typedef struct coro *Coro__State_or_hashref;
265 278
266/* the following variables are effectively part of the perl context */ 279/* the following variables are effectively part of the perl context */
267/* and get copied between struct coro and these variables */ 280/* and get copied between struct coro and these variables */
268/* the mainr easonw e don't support windows process emulation */ 281/* the main reason we don't support windows process emulation */
269static struct CoroSLF slf_frame; /* the current slf frame */ 282static struct CoroSLF slf_frame; /* the current slf frame */
270 283
271/** Coro ********************************************************************/ 284/** Coro ********************************************************************/
272 285
273#define CORO_PRIO_MAX 3 286#define CORO_PRIO_MAX 3
… …
279 292
280/* for Coro.pm */ 293/* for Coro.pm */
281static SV *coro_current; 294static SV *coro_current;
282static SV *coro_readyhook; 295static SV *coro_readyhook;
283static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 296static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
284static CV *cv_coro_run, *cv_coro_terminate; 297static CV *cv_coro_run;
285static struct coro *coro_first; 298static struct coro *coro_first;
286#define coro_nready coroapi.nready 299#define coro_nready coroapi.nready
287 300
288/** Coro::Select ************************************************************/ 301/** Coro::Select ************************************************************/
289 302
290static OP *(*coro_old_pp_sselect) (pTHX); 303static OP *(*coro_old_pp_sselect) (pTHX);
291static SV *coro_select_select; 304static SV *coro_select_select;
292 305
293/* horrible hack, but if it works... */ 306/* horrible hack, but if it works... */
294static OP * 307static OP *
295coro_pp_sselect (aTHX) 308coro_pp_sselect (pTHX)
296{ 309{
297 dSP; 310 dSP;
298 PUSHMARK (SP - 4); /* fake argument list */ 311 PUSHMARK (SP - 4); /* fake argument list */
299 XPUSHs (coro_select_select); 312 XPUSHs (coro_select_select);
300 PUTBACK; 313 PUTBACK;
… …
302 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ 315 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
303 PL_op->op_flags |= OPf_STACKED; 316 PL_op->op_flags |= OPf_STACKED;
304 PL_op->op_private = 0; 317 PL_op->op_private = 0;
305 return PL_ppaddr [OP_ENTERSUB](aTHX); 318 return PL_ppaddr [OP_ENTERSUB](aTHX);
306} 319}
320
321/** time stuff **************************************************************/
322
323#ifdef HAS_GETTIMEOFDAY
324
325static void
326coro_u2time (pTHX_ UV ret[2])
327{
328 struct timeval tv;
329 gettimeofday (&tv, 0);
330
331 ret [0] = tv.tv_sec;
332 ret [1] = tv.tv_usec;
333}
334
335static double
336coro_nvtime ()
337{
338 struct timeval tv;
339 gettimeofday (&tv, 0);
340
341 return tv.tv_sec + tv.tv_usec * 1e-6;
342}
343
344static void
345time_init (pTHX)
346{
347 nvtime = coro_nvtime;
348 u2time = coro_u2time;
349}
350
351#else
352
353static void
354time_init (pTHX)
355{
356 SV **svp;
357
358 require_pv ("Time/HiRes.pm");
359
360 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
361
362 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
363 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
364
365 nvtime = INT2PTR (double (*)(), SvIV (*svp));
366
367 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
368 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
369}
370
371#endif
307 372
308/** lowlevel stuff **********************************************************/ 373/** lowlevel stuff **********************************************************/
309 374
310static SV * 375static SV *
311coro_get_sv (pTHX_ const char *name, int create) 376coro_get_sv (pTHX_ const char *name, int create)
… …
551 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 616 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
552} 617}
553 618
554/** load & save, init *******************************************************/ 619/** load & save, init *******************************************************/
555 620
621/* swap sv heads, at least logically */
622static void
623swap_svs (pTHX_ Coro__State c)
624{
625 int i;
626
627 for (i = 0; i <= AvFILLp (c->swap_sv); )
628 {
629 SV *a = AvARRAY (c->swap_sv)[i++];
630 SV *b = AvARRAY (c->swap_sv)[i++];
631
632 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
633 SV tmp;
634
635 /* swap sv_any */
636 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
637
638 /* swap sv_flags */
639 SvFLAGS (&tmp) = SvFLAGS (a);
640 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
641 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
642
643#if PERL_VERSION_ATLEAST (5,10,0)
644 /* perl 5.10 complicates this _quite_ a bit, but it also is
645 * much faster, so no quarrels here. alternatively, we could
646 * sv_upgrade to avoid this.
647 */
648 {
649 /* swap sv_u */
650 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
651
652 /* if SvANY points to the head, we need to adjust the pointers,
653 * as the pointer for a still points to b, and maybe vice versa.
654 */
655 #define svany_in_head(type) \
656 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
657
658 if (svany_in_head (SvTYPE (a)))
659 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
660
661 if (svany_in_head (SvTYPE (b)))
662 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
663 }
664#endif
665 }
666}
667
668#define SWAP_SVS(coro) \
669 if (expect_false ((coro)->swap_sv)) \
670 swap_svs (aTHX_ (coro))
671
556static void 672static void
557on_enterleave_call (pTHX_ SV *cb); 673on_enterleave_call (pTHX_ SV *cb);
558 674
559static void 675static void
560load_perl (pTHX_ Coro__State c) 676load_perl (pTHX_ Coro__State c)
… …
606 int i; 722 int i;
607 723
608 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 724 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
609 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 725 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
610 } 726 }
727
728 SWAP_SVS (c);
611} 729}
612 730
613static void 731static void
614save_perl (pTHX_ Coro__State c) 732save_perl (pTHX_ Coro__State c)
615{ 733{
734 SWAP_SVS (c);
735
616 if (expect_false (c->on_leave)) 736 if (expect_false (c->on_leave))
617 { 737 {
618 int i; 738 int i;
619 739
620 for (i = AvFILLp (c->on_leave); i >= 0; --i) 740 for (i = AvFILLp (c->on_leave); i >= 0; --i)
… …
927slf_check_repeat (pTHX_ struct CoroSLF *frame) 1047slf_check_repeat (pTHX_ struct CoroSLF *frame)
928{ 1048{
929 return 1; 1049 return 1;
930} 1050}
931 1051
932static UNOP coro_setup_op; 1052static UNOP init_perl_op;
933 1053
934static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1054static void NOINLINE /* noinline to keep it out of the transfer fast path */
935coro_setup (pTHX_ struct coro *coro) 1055init_perl (pTHX_ struct coro *coro)
936{ 1056{
937 /* 1057 /*
938 * emulate part of the perl startup here. 1058 * emulate part of the perl startup here.
939 */ 1059 */
940 coro_init_stacks (aTHX); 1060 coro_init_stacks (aTHX);
… …
947 PL_comppad_name_fill = 0; 1067 PL_comppad_name_fill = 0;
948 PL_comppad_name_floor = 0; 1068 PL_comppad_name_floor = 0;
949 PL_curpm = 0; 1069 PL_curpm = 0;
950 PL_curpad = 0; 1070 PL_curpad = 0;
951 PL_localizing = 0; 1071 PL_localizing = 0;
952 PL_dirty = 0;
953 PL_restartop = 0; 1072 PL_restartop = 0;
954#if PERL_VERSION_ATLEAST (5,10,0) 1073#if PERL_VERSION_ATLEAST (5,10,0)
955 PL_parser = 0; 1074 PL_parser = 0;
956#endif 1075#endif
957 PL_hints = 0; 1076 PL_hints = 0;
… …
989 */ 1108 */
990 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1109 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
991 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1110 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
992 1111
993 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1112 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
994 coro_setup_op.op_next = PL_op; 1113 init_perl_op.op_next = PL_op;
995 coro_setup_op.op_type = OP_ENTERSUB; 1114 init_perl_op.op_type = OP_ENTERSUB;
996 coro_setup_op.op_ppaddr = pp_slf; 1115 init_perl_op.op_ppaddr = pp_slf;
997 /* no flags etc. required, as an init function won't be called */ 1116 /* no flags etc. required, as an init function won't be called */
998 1117
999 PL_op = (OP *)&coro_setup_op; 1118 PL_op = (OP *)&init_perl_op;
1000 1119
1001 /* copy throw, in case it was set before coro_setup */ 1120 /* copy throw, in case it was set before init_perl */
1002 CORO_THROW = coro->except; 1121 CORO_THROW = coro->except;
1122
1123 SWAP_SVS (coro);
1003 1124
1004 if (expect_false (enable_times)) 1125 if (expect_false (enable_times))
1005 { 1126 {
1006 coro_times_update (); 1127 coro_times_update ();
1007 coro_times_sub (coro); 1128 coro_times_sub (coro);
… …
1028 dounwind (-1); 1149 dounwind (-1);
1029 } 1150 }
1030} 1151}
1031 1152
1032static void 1153static void
1033coro_destruct_perl (pTHX_ struct coro *coro) 1154destroy_perl (pTHX_ struct coro *coro)
1034{ 1155{
1035 SV *svf [9]; 1156 SV *svf [9];
1036 1157
1037 { 1158 {
1159 SV *old_current = SvRV (coro_current);
1038 struct coro *current = SvSTATE_current; 1160 struct coro *current = SvSTATE (old_current);
1039 1161
1040 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1162 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1041 1163
1042 save_perl (aTHX_ current); 1164 save_perl (aTHX_ current);
1165
1166 /* this will cause transfer_check to croak on block*/
1167 SvRV_set (coro_current, (SV *)coro->hv);
1168
1043 load_perl (aTHX_ coro); 1169 load_perl (aTHX_ coro);
1044 1170
1045 coro_unwind_stacks (aTHX); 1171 coro_unwind_stacks (aTHX);
1046 coro_destruct_stacks (aTHX); 1172 coro_destruct_stacks (aTHX);
1173
1174 /* restore swapped sv's */
1175 SWAP_SVS (coro);
1047 1176
1048 // now save some sv's to be free'd later 1177 // now save some sv's to be free'd later
1049 svf [0] = GvSV (PL_defgv); 1178 svf [0] = GvSV (PL_defgv);
1050 svf [1] = (SV *)GvAV (PL_defgv); 1179 svf [1] = (SV *)GvAV (PL_defgv);
1051 svf [2] = GvSV (PL_errgv); 1180 svf [2] = GvSV (PL_errgv);
… …
1054 svf [5] = GvSV (irsgv); 1183 svf [5] = GvSV (irsgv);
1055 svf [6] = (SV *)GvHV (PL_hintgv); 1184 svf [6] = (SV *)GvHV (PL_hintgv);
1056 svf [7] = PL_diehook; 1185 svf [7] = PL_diehook;
1057 svf [8] = PL_warnhook; 1186 svf [8] = PL_warnhook;
1058 assert (9 == sizeof (svf) / sizeof (*svf)); 1187 assert (9 == sizeof (svf) / sizeof (*svf));
1188
1189 SvRV_set (coro_current, old_current);
1059 1190
1060 load_perl (aTHX_ current); 1191 load_perl (aTHX_ current);
1061 } 1192 }
1062 1193
1063 { 1194 {
… …
1275 /* somebody or something will hit me for both perl_run and PL_restartop */ 1406 /* somebody or something will hit me for both perl_run and PL_restartop */
1276 PL_restartop = PL_op; 1407 PL_restartop = PL_op;
1277 perl_run (PL_curinterp); 1408 perl_run (PL_curinterp);
1278 /* 1409 /*
1279 * Unfortunately, there is no way to get at the return values of the 1410 * Unfortunately, there is no way to get at the return values of the
1280 * coro body here, as perl_run destroys these 1411 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1412 * runtime errors here, as this is just a random interpreter, not a thread.
1281 */ 1413 */
1282 1414
1283 /* 1415 /*
1284 * If perl-run returns we assume exit() was being called or the coro 1416 * If perl-run returns we assume exit() was being called or the coro
1285 * fell off the end, which seems to be the only valid (non-bug) 1417 * fell off the end, which seems to be the only valid (non-bug)
… …
1372cctx_destroy (coro_cctx *cctx) 1504cctx_destroy (coro_cctx *cctx)
1373{ 1505{
1374 if (!cctx) 1506 if (!cctx)
1375 return; 1507 return;
1376 1508
1377 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1509 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1378 1510
1379 --cctx_count; 1511 --cctx_count;
1380 coro_destroy (&cctx->cctx); 1512 coro_destroy (&cctx->cctx);
1381 1513
1382 /* coro_transfer creates new, empty cctx's */ 1514 /* coro_transfer creates new, empty cctx's */
… …
1492 if (expect_false (next->flags & CF_NEW)) 1624 if (expect_false (next->flags & CF_NEW))
1493 { 1625 {
1494 /* need to start coroutine */ 1626 /* need to start coroutine */
1495 next->flags &= ~CF_NEW; 1627 next->flags &= ~CF_NEW;
1496 /* setup coroutine call */ 1628 /* setup coroutine call */
1497 coro_setup (aTHX_ next); 1629 init_perl (aTHX_ next);
1498 } 1630 }
1499 else 1631 else
1500 load_perl (aTHX_ next); 1632 load_perl (aTHX_ next);
1501 1633
1502 /* possibly untie and reuse the cctx */ 1634 /* possibly untie and reuse the cctx */
… …
1541#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1673#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1542#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1674#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1543 1675
1544/** high level stuff ********************************************************/ 1676/** high level stuff ********************************************************/
1545 1677
1546static int 1678static void
1547coro_state_destroy (pTHX_ struct coro *coro) 1679coro_state_destroy (pTHX_ struct coro *coro)
1548{ 1680{
1549 if (coro->flags & CF_DESTROYED) 1681 if (coro->flags & CF_DESTROYED)
1550 return 0; 1682 return;
1551 1683
1552 if (coro->on_destroy && !PL_dirty)
1553 coro->on_destroy (aTHX_ coro); 1684 slf_destroy (aTHX_ coro);
1554 1685
1555 coro->flags |= CF_DESTROYED; 1686 coro->flags |= CF_DESTROYED;
1556 1687
1557 if (coro->flags & CF_READY) 1688 if (coro->flags & CF_READY)
1558 { 1689 {
… …
1565 1696
1566 if (coro->mainstack 1697 if (coro->mainstack
1567 && coro->mainstack != main_mainstack 1698 && coro->mainstack != main_mainstack
1568 && coro->slot 1699 && coro->slot
1569 && !PL_dirty) 1700 && !PL_dirty)
1570 coro_destruct_perl (aTHX_ coro); 1701 destroy_perl (aTHX_ coro);
1702
1703 if (coro->next) coro->next->prev = coro->prev;
1704 if (coro->prev) coro->prev->next = coro->next;
1705 if (coro == coro_first) coro_first = coro->next;
1571 1706
1572 cctx_destroy (coro->cctx); 1707 cctx_destroy (coro->cctx);
1573 SvREFCNT_dec (coro->startcv); 1708 SvREFCNT_dec (coro->startcv);
1574 SvREFCNT_dec (coro->args); 1709 SvREFCNT_dec (coro->args);
1710 SvREFCNT_dec (coro->swap_sv);
1575 SvREFCNT_dec (CORO_THROW); 1711 SvREFCNT_dec (CORO_THROW);
1576
1577 if (coro->next) coro->next->prev = coro->prev;
1578 if (coro->prev) coro->prev->next = coro->next;
1579 if (coro == coro_first) coro_first = coro->next;
1580
1581 return 1;
1582} 1712}
1583 1713
1584static int 1714static int
1585coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1715coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1586{ 1716{
… …
1668 } 1798 }
1669 1799
1670 return 0; 1800 return 0;
1671} 1801}
1672 1802
1803static void
1804invoke_sv_ready_hook_helper (void)
1805{
1806 dTHX;
1807 dSP;
1808
1809 ENTER;
1810 SAVETMPS;
1811
1812 PUSHMARK (SP);
1813 PUTBACK;
1814 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1815
1816 FREETMPS;
1817 LEAVE;
1818}
1819
1673static int 1820static int
1674api_ready (pTHX_ SV *coro_sv) 1821api_ready (pTHX_ SV *coro_sv)
1675{ 1822{
1676 struct coro *coro;
1677 SV *sv_hook;
1678 void (*xs_hook)(void);
1679
1680 coro = SvSTATE (coro_sv); 1823 struct coro *coro = SvSTATE (coro_sv);
1681 1824
1682 if (coro->flags & CF_READY) 1825 if (coro->flags & CF_READY)
1683 return 0; 1826 return 0;
1684 1827
1685 coro->flags |= CF_READY; 1828 coro->flags |= CF_READY;
1686 1829
1687 sv_hook = coro_nready ? 0 : coro_readyhook;
1688 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1689
1690 coro_enq (aTHX_ coro); 1830 coro_enq (aTHX_ coro);
1691 ++coro_nready;
1692 1831
1693 if (sv_hook) 1832 if (!coro_nready++)
1694 { 1833 if (coroapi.readyhook)
1695 dSP; 1834 coroapi.readyhook ();
1696
1697 ENTER;
1698 SAVETMPS;
1699
1700 PUSHMARK (SP);
1701 PUTBACK;
1702 call_sv (sv_hook, G_VOID | G_DISCARD);
1703
1704 FREETMPS;
1705 LEAVE;
1706 }
1707
1708 if (xs_hook)
1709 xs_hook ();
1710 1835
1711 return 1; 1836 return 1;
1712} 1837}
1713 1838
1714static int 1839static int
… …
1759 { 1884 {
1760 /* nothing to schedule: call the idle handler */ 1885 /* nothing to schedule: call the idle handler */
1761 if (SvROK (sv_idle) 1886 if (SvROK (sv_idle)
1762 && SvOBJECT (SvRV (sv_idle))) 1887 && SvOBJECT (SvRV (sv_idle)))
1763 { 1888 {
1889 if (SvRV (sv_idle) == SvRV (coro_current))
1890 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1891
1764 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1892 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1765 api_ready (aTHX_ SvRV (sv_idle)); 1893 api_ready (aTHX_ SvRV (sv_idle));
1766 --coro_nready; 1894 --coro_nready;
1767 } 1895 }
1768 else 1896 else
1769 { 1897 {
1898 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1770 dSP; 1899 dSP;
1771 1900
1772 ENTER; 1901 ENTER;
1773 SAVETMPS; 1902 SAVETMPS;
1774 1903
… …
1884 2013
1885static void 2014static void
1886coro_call_on_destroy (pTHX_ struct coro *coro) 2015coro_call_on_destroy (pTHX_ struct coro *coro)
1887{ 2016{
1888 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2017 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1889 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1890 2018
1891 if (on_destroyp) 2019 if (on_destroyp)
1892 { 2020 {
1893 AV *on_destroy = (AV *)SvRV (*on_destroyp); 2021 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2022 AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp)));
2023 AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0;
1894 2024
1895 while (AvFILLp (on_destroy) >= 0) 2025 while (AvFILLp (on_destroy) >= 0)
1896 { 2026 {
1897 dSP; /* don't disturb outer sp */ 2027 dSP; /* don't disturb outer sp */
1898 SV *cb = av_pop (on_destroy); 2028 SV *cb = av_pop (on_destroy);
… …
1900 PUSHMARK (SP); 2030 PUSHMARK (SP);
1901 2031
1902 if (statusp) 2032 if (statusp)
1903 { 2033 {
1904 int i; 2034 int i;
1905 AV *status = (AV *)SvRV (*statusp);
1906 EXTEND (SP, AvFILLp (status) + 1); 2035 EXTEND (SP, AvFILLp (status) + 1);
1907 2036
1908 for (i = 0; i <= AvFILLp (status); ++i) 2037 for (i = 0; i <= AvFILLp (status); ++i)
1909 PUSHs (AvARRAY (status)[i]); 2038 PUSHs (AvARRAY (status)[i]);
1910 } 2039 }
… …
1914 } 2043 }
1915 } 2044 }
1916} 2045}
1917 2046
1918static void 2047static void
1919slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2048coro_set_status (HV *coro_hv, SV **arg, int items)
1920{ 2049{
1921 int i;
1922 HV *hv = (HV *)SvRV (coro_current);
1923 AV *av = newAV (); 2050 AV *av = newAV ();
1924 2051
2052 /* items are actually not so common, so optimise for this case */
2053 if (items)
2054 {
2055 int i;
2056
1925 av_extend (av, items - 1); 2057 av_extend (av, items - 1);
2058
1926 for (i = 0; i < items; ++i) 2059 for (i = 0; i < items; ++i)
1927 av_push (av, SvREFCNT_inc_NN (arg [i])); 2060 av_push (av, SvREFCNT_inc_NN (arg [i]));
2061 }
1928 2062
1929 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2063 hv_store (coro_hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2064}
1930 2065
2066static void
2067slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2068{
1931 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2069 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1932 api_ready (aTHX_ sv_manager); 2070 api_ready (aTHX_ sv_manager);
1933 2071
1934 frame->prepare = prepare_schedule; 2072 frame->prepare = prepare_schedule;
1935 frame->check = slf_check_repeat; 2073 frame->check = slf_check_repeat;
1936 2074
1937 /* as a minor optimisation, we could unwind all stacks here */ 2075 /* as a minor optimisation, we could unwind all stacks here */
1938 /* but that puts extra pressure on pp_slf, and is not worth much */ 2076 /* but that puts extra pressure on pp_slf, and is not worth much */
1939 /*coro_unwind_stacks (aTHX);*/ 2077 /*coro_unwind_stacks (aTHX);*/
2078}
2079
2080static void
2081slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2082{
2083 HV *coro_hv = (HV *)SvRV (coro_current);
2084
2085 coro_set_status (coro_hv, arg, items);
2086 slf_init_terminate_cancel_common (frame, coro_hv);
2087}
2088
2089static void
2090slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2091{
2092 HV *coro_hv;
2093 struct coro *coro;
2094
2095 if (items <= 0)
2096 croak ("Coro::cancel called without coro object,");
2097
2098 coro = SvSTATE (arg [0]);
2099 coro_hv = coro->hv;
2100
2101 coro_set_status (coro_hv, arg + 1, items - 1);
2102
2103 if (expect_false (coro->flags & CF_NOCANCEL))
2104 {
2105 /* coro currently busy cancelling something, so just notify it */
2106 coro->slf_frame.data = (void *)coro;
2107
2108 frame->prepare = prepare_nop;
2109 frame->check = slf_check_nop;
2110 }
2111 else if (coro_hv == (HV *)SvRV (coro_current))
2112 {
2113 /* cancelling the current coro is allowed, and equals terminate */
2114 slf_init_terminate_cancel_common (frame, coro_hv);
2115 }
2116 else
2117 {
2118 struct coro *self = SvSTATE_current;
2119
2120 /* otherwise we cancel directly, purely for speed reasons
2121 * unfortunately, this requires some magic trickery, as
2122 * somebody else could cancel us, so we have to fight the cancellation.
2123 * this is ugly, and hopefully fully worth the extra speed.
2124 * besides, I can't get the slow-but-safe version working...
2125 */
2126 slf_frame.data = 0;
2127 self->flags |= CF_NOCANCEL;
2128
2129 coro_state_destroy (aTHX_ coro);
2130 coro_call_on_destroy (aTHX_ coro);
2131
2132 self->flags &= ~CF_NOCANCEL;
2133
2134 if (slf_frame.data)
2135 {
2136 /* while we were busy we have been cancelled, so terminate */
2137 slf_init_terminate_cancel_common (frame, self->hv);
2138 }
2139 else
2140 {
2141 frame->prepare = prepare_nop;
2142 frame->check = slf_check_nop;
2143 }
2144 }
2145}
2146
2147static int
2148slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2149{
2150 frame->prepare = 0;
2151 coro_unwind_stacks ();
2152
2153 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2154
2155 return 1;
2156}
2157
2158static int
2159safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2160{
2161 if (coro->cctx)
2162 croak ("coro inside C callback, unable to cancel at this time, caught");
2163
2164 if (coro->flags & CF_NEW)
2165 {
2166 coro_set_status (coro->hv, arg, items);
2167 coro_state_destroy (aTHX_ coro);
2168 coro_call_on_destroy (aTHX_ coro);
2169 }
2170 else
2171 {
2172 if (!coro->slf_frame.prepare)
2173 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2174
2175 slf_destroy (coro);
2176
2177 coro_set_status (coro->hv, arg, items);
2178 coro->slf_frame.prepare = prepare_nop;
2179 coro->slf_frame.check = slf_check_safe_cancel;
2180
2181 api_ready (aTHX_ coro->hv);
2182 }
2183
2184 return 1;
1940} 2185}
1941 2186
1942/*****************************************************************************/ 2187/*****************************************************************************/
1943/* async pool handler */ 2188/* async pool handler */
1944 2189
… …
1984 coro->saved_deffh = 0; 2229 coro->saved_deffh = 0;
1985 2230
1986 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2231 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1987 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2232 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1988 { 2233 {
1989 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2234 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1990 coro->invoke_av = newAV (); 2235 return;
1991
1992 frame->prepare = prepare_nop;
1993 } 2236 }
1994 else 2237 else
1995 { 2238 {
1996 av_clear (GvAV (PL_defgv)); 2239 av_clear (GvAV (PL_defgv));
1997 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2240 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2220static void 2463static void
2221slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2464slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2222{ 2465{
2223 frame->prepare = prepare_cede_notself; 2466 frame->prepare = prepare_cede_notself;
2224 frame->check = slf_check_nop; 2467 frame->check = slf_check_nop;
2468}
2469
2470/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2471static void
2472slf_destroy (pTHX_ struct coro *coro)
2473{
2474 /* this callback is reserved for slf functions needing to do cleanup */
2475 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2476 coro->slf_frame.destroy (aTHX_ coro);
2477
2478 /*
2479 * The on_destroy above most likely is from an SLF call.
2480 * Since by definition the SLF call will not finish when we destroy
2481 * the coro, we will have to force-finish it here, otherwise
2482 * cleanup functions cannot call SLF functions.
2483 */
2484 coro->slf_frame.prepare = 0;
2225} 2485}
2226 2486
2227/* 2487/*
2228 * these not obviously related functions are all rolled into one 2488 * these not obviously related functions are all rolled into one
2229 * function to increase chances that they all will call transfer with the same 2489 * function to increase chances that they all will call transfer with the same
… …
2348 if (PL_op->op_flags & OPf_STACKED) 2608 if (PL_op->op_flags & OPf_STACKED)
2349 { 2609 {
2350 if (items > slf_arga) 2610 if (items > slf_arga)
2351 { 2611 {
2352 slf_arga = items; 2612 slf_arga = items;
2353 free (slf_argv); 2613 Safefree (slf_argv);
2354 slf_argv = malloc (slf_arga * sizeof (SV *)); 2614 New (0, slf_argv, slf_arga, SV *);
2355 } 2615 }
2356 2616
2357 slf_argc = items; 2617 slf_argc = items;
2358 2618
2359 for (i = 0; i < items; ++i) 2619 for (i = 0; i < items; ++i)
… …
2555 SvREFCNT_dec (cb); 2815 SvREFCNT_dec (cb);
2556 } 2816 }
2557} 2817}
2558 2818
2559static void 2819static void
2560coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2820coro_semaphore_destroy (pTHX_ struct coro *coro)
2561{ 2821{
2562 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2822 /* call $sem->adjust (0) to possibly wake up some other waiters */
2563 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2823 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2564} 2824}
2565 2825
… …
2572 /* if we are about to throw, don't actually acquire the lock, just throw */ 2832 /* if we are about to throw, don't actually acquire the lock, just throw */
2573 if (CORO_THROW) 2833 if (CORO_THROW)
2574 return 0; 2834 return 0;
2575 else if (SvIVX (count_sv) > 0) 2835 else if (SvIVX (count_sv) > 0)
2576 { 2836 {
2577 SvSTATE_current->on_destroy = 0; 2837 frame->destroy = 0;
2578 2838
2579 if (acquire) 2839 if (acquire)
2580 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2840 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2581 else 2841 else
2582 coro_semaphore_adjust (aTHX_ av, 0); 2842 coro_semaphore_adjust (aTHX_ av, 0);
… …
2625 { 2885 {
2626 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2886 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2627 2887
2628 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2888 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2629 frame->prepare = prepare_schedule; 2889 frame->prepare = prepare_schedule;
2630
2631 /* to avoid race conditions when a woken-up coro gets terminated */ 2890 /* to avoid race conditions when a woken-up coro gets terminated */
2632 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2891 /* we arrange for a temporary on_destroy that calls adjust (0) */
2633 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2892 frame->destroy = coro_semaphore_destroy;
2634 } 2893 }
2635} 2894}
2636 2895
2637static void 2896static void
2638slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2897slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2720 { 2979 {
2721 SV *cb_cv = s_get_cv_croak (arg [1]); 2980 SV *cb_cv = s_get_cv_croak (arg [1]);
2722 av_push (av, SvREFCNT_inc_NN (cb_cv)); 2981 av_push (av, SvREFCNT_inc_NN (cb_cv));
2723 2982
2724 if (SvIVX (AvARRAY (av)[0])) 2983 if (SvIVX (AvARRAY (av)[0]))
2725 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 2984 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2726 2985
2727 frame->prepare = prepare_nop; 2986 frame->prepare = prepare_nop;
2728 frame->check = slf_check_nop; 2987 frame->check = slf_check_nop;
2729 } 2988 }
2730 else if (SvIVX (AvARRAY (av)[0])) 2989 else if (SvIVX (AvARRAY (av)[0]))
… …
2892 /* now call the AIO function - we assume our request is uncancelable */ 3151 /* now call the AIO function - we assume our request is uncancelable */
2893 PUTBACK; 3152 PUTBACK;
2894 call_sv ((SV *)req, G_VOID | G_DISCARD); 3153 call_sv ((SV *)req, G_VOID | G_DISCARD);
2895 } 3154 }
2896 3155
2897 /* now that the requets is going, we loop toll we have a result */ 3156 /* now that the request is going, we loop till we have a result */
2898 frame->data = (void *)state; 3157 frame->data = (void *)state;
2899 frame->prepare = prepare_schedule; 3158 frame->prepare = prepare_schedule;
2900 frame->check = slf_check_aio_req; 3159 frame->check = slf_check_aio_req;
2901} 3160}
2902 3161
… …
2913/*****************************************************************************/ 3172/*****************************************************************************/
2914 3173
2915#if CORO_CLONE 3174#if CORO_CLONE
2916# include "clone.c" 3175# include "clone.c"
2917#endif 3176#endif
3177
3178/*****************************************************************************/
3179
3180static SV *
3181coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3182{
3183 SV *coro_sv;
3184 struct coro *coro;
3185 MAGIC *mg;
3186 HV *hv;
3187 SV *cb;
3188 int i;
3189
3190 if (argc > 0)
3191 {
3192 cb = s_get_cv_croak (argv [0]);
3193
3194 if (!is_coro)
3195 {
3196 if (CvISXSUB (cb))
3197 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3198
3199 if (!CvROOT (cb))
3200 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3201 }
3202 }
3203
3204 Newz (0, coro, 1, struct coro);
3205 coro->args = newAV ();
3206 coro->flags = CF_NEW;
3207
3208 if (coro_first) coro_first->prev = coro;
3209 coro->next = coro_first;
3210 coro_first = coro;
3211
3212 coro->hv = hv = newHV ();
3213 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3214 mg->mg_flags |= MGf_DUP;
3215 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3216
3217 if (argc > 0)
3218 {
3219 av_extend (coro->args, argc + is_coro - 1);
3220
3221 if (is_coro)
3222 {
3223 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3224 cb = (SV *)cv_coro_run;
3225 }
3226
3227 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3228
3229 for (i = 1; i < argc; i++)
3230 av_push (coro->args, newSVsv (argv [i]));
3231 }
3232
3233 return coro_sv;
3234}
2918 3235
2919MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3236MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2920 3237
2921PROTOTYPES: DISABLE 3238PROTOTYPES: DISABLE
2922 3239
… …
2975 coroapi.prepare_nop = prepare_nop; 3292 coroapi.prepare_nop = prepare_nop;
2976 coroapi.prepare_schedule = prepare_schedule; 3293 coroapi.prepare_schedule = prepare_schedule;
2977 coroapi.prepare_cede = prepare_cede; 3294 coroapi.prepare_cede = prepare_cede;
2978 coroapi.prepare_cede_notself = prepare_cede_notself; 3295 coroapi.prepare_cede_notself = prepare_cede_notself;
2979 3296
2980 { 3297 time_init (aTHX);
2981 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2982
2983 if (!svp) croak ("Time::HiRes is required");
2984 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2985
2986 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2987
2988 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
2989 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2990 }
2991 3298
2992 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3299 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2993} 3300}
2994 3301
2995SV * 3302SV *
2996new (char *klass, ...) 3303new (SV *klass, ...)
2997 ALIAS: 3304 ALIAS:
2998 Coro::new = 1 3305 Coro::new = 1
2999 CODE: 3306 CODE:
3000{ 3307 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
3001 struct coro *coro; 3308 OUTPUT:
3002 MAGIC *mg;
3003 HV *hv;
3004 SV *cb;
3005 int i;
3006
3007 if (items > 1)
3008 {
3009 cb = s_get_cv_croak (ST (1));
3010
3011 if (!ix)
3012 {
3013 if (CvISXSUB (cb))
3014 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3015
3016 if (!CvROOT (cb))
3017 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3018 }
3019 }
3020
3021 Newz (0, coro, 1, struct coro);
3022 coro->args = newAV ();
3023 coro->flags = CF_NEW;
3024
3025 if (coro_first) coro_first->prev = coro;
3026 coro->next = coro_first;
3027 coro_first = coro;
3028
3029 coro->hv = hv = newHV ();
3030 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3031 mg->mg_flags |= MGf_DUP;
3032 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3033
3034 if (items > 1)
3035 {
3036 av_extend (coro->args, items - 1 + ix - 1);
3037
3038 if (ix)
3039 {
3040 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3041 cb = (SV *)cv_coro_run;
3042 }
3043
3044 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3045
3046 for (i = 2; i < items; i++)
3047 av_push (coro->args, newSVsv (ST (i)));
3048 }
3049}
3050 OUTPUT:
3051 RETVAL 3309 RETVAL
3052 3310
3053void 3311void
3054transfer (...) 3312transfer (...)
3055 PROTOTYPE: $$ 3313 PROTOTYPE: $$
3056 CODE: 3314 CODE:
3057 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3315 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3058
3059bool
3060_destroy (SV *coro_sv)
3061 CODE:
3062 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3063 OUTPUT:
3064 RETVAL
3065 3316
3066void 3317void
3067_exit (int code) 3318_exit (int code)
3068 PROTOTYPE: $ 3319 PROTOTYPE: $
3069 CODE: 3320 CODE:
… …
3145 CODE: 3396 CODE:
3146{ 3397{
3147 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3398 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3148 { 3399 {
3149 struct coro *current = SvSTATE_current; 3400 struct coro *current = SvSTATE_current;
3401 struct CoroSLF slf_save;
3150 3402
3151 if (current != coro) 3403 if (current != coro)
3152 { 3404 {
3153 PUTBACK; 3405 PUTBACK;
3154 save_perl (aTHX_ current); 3406 save_perl (aTHX_ current);
3155 load_perl (aTHX_ coro); 3407 load_perl (aTHX_ coro);
3408 /* the coro is most likely in an active SLF call.
3409 * while not strictly required (the code we execute is
3410 * not allowed to call any SLF functions), it's cleaner
3411 * to reinitialise the slf_frame and restore it later.
3412 * This might one day allow us to actually do SLF calls
3413 * from code executed here.
3414 */
3415 slf_save = slf_frame;
3416 slf_frame.prepare = 0;
3156 SPAGAIN; 3417 SPAGAIN;
3157 } 3418 }
3158 3419
3159 PUSHSTACK; 3420 PUSHSTACK;
3160 3421
… …
3170 SPAGAIN; 3431 SPAGAIN;
3171 3432
3172 if (current != coro) 3433 if (current != coro)
3173 { 3434 {
3174 PUTBACK; 3435 PUTBACK;
3436 slf_frame = slf_save;
3175 save_perl (aTHX_ coro); 3437 save_perl (aTHX_ coro);
3176 load_perl (aTHX_ current); 3438 load_perl (aTHX_ current);
3177 SPAGAIN; 3439 SPAGAIN;
3178 } 3440 }
3179 } 3441 }
… …
3192 RETVAL = boolSV (coro->flags & ix); 3454 RETVAL = boolSV (coro->flags & ix);
3193 OUTPUT: 3455 OUTPUT:
3194 RETVAL 3456 RETVAL
3195 3457
3196void 3458void
3197throw (Coro::State self, SV *throw = &PL_sv_undef) 3459throw (Coro::State self, SV *exception = &PL_sv_undef)
3198 PROTOTYPE: $;$ 3460 PROTOTYPE: $;$
3199 CODE: 3461 CODE:
3200{ 3462{
3201 struct coro *current = SvSTATE_current; 3463 struct coro *current = SvSTATE_current;
3202 SV **throwp = self == current ? &CORO_THROW : &self->except; 3464 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3203 SvREFCNT_dec (*throwp); 3465 SvREFCNT_dec (*exceptionp);
3204 SvGETMAGIC (throw); 3466 SvGETMAGIC (exception);
3205 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3467 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3206} 3468}
3207 3469
3208void 3470void
3209api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3471api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3210 PROTOTYPE: $;$ 3472 PROTOTYPE: $;$
… …
3265 3527
3266void 3528void
3267cancel (Coro::State self) 3529cancel (Coro::State self)
3268 CODE: 3530 CODE:
3269 coro_state_destroy (aTHX_ self); 3531 coro_state_destroy (aTHX_ self);
3270 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3271
3272 3532
3273SV * 3533SV *
3274enable_times (int enabled = enable_times) 3534enable_times (int enabled = enable_times)
3275 CODE: 3535 CODE:
3276{ 3536{
… …
3305 3565
3306 if (expect_false (current == self)) 3566 if (expect_false (current == self))
3307 coro_times_sub (SvSTATE (coro_current)); 3567 coro_times_sub (SvSTATE (coro_current));
3308} 3568}
3309 3569
3570void
3571swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3572 CODE:
3573{
3574 struct coro *current = SvSTATE_current;
3575
3576 if (current == coro)
3577 SWAP_SVS (current);
3578
3579 if (!coro->swap_sv)
3580 coro->swap_sv = newAV ();
3581
3582 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3583 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3584
3585 if (current == coro)
3586 SWAP_SVS (current);
3587}
3588
3589
3310MODULE = Coro::State PACKAGE = Coro 3590MODULE = Coro::State PACKAGE = Coro
3311 3591
3312BOOT: 3592BOOT:
3313{ 3593{
3314 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3594 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3315 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3595 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3316 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3596 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3317 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3318 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3597 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3319 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3598 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3320 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3599 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3321 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3600 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3322 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3601 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3323 3602
3324 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3603 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3325 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3604 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3326 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3605 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3327 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3606 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3328 3607
3329 coro_stash = gv_stashpv ("Coro", TRUE); 3608 coro_stash = gv_stashpv ("Coro", TRUE);
3330 3609
3331 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3610 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3332 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3611 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3333 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3612 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3351 sv_setiv (sv, (IV)&coroapi); 3630 sv_setiv (sv, (IV)&coroapi);
3352 SvREADONLY_on (sv); 3631 SvREADONLY_on (sv);
3353 } 3632 }
3354} 3633}
3355 3634
3635SV *
3636async (...)
3637 PROTOTYPE: &@
3638 CODE:
3639 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3640 api_ready (aTHX_ RETVAL);
3641 OUTPUT:
3642 RETVAL
3643
3644void
3645_destroy (Coro::State coro)
3646 CODE:
3647 /* used by the manager thread */
3648 coro_state_destroy (aTHX_ coro);
3649 coro_call_on_destroy (aTHX_ coro);
3650
3356void 3651void
3357terminate (...) 3652terminate (...)
3358 CODE: 3653 CODE:
3359 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3654 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3655
3656void
3657cancel (...)
3658 CODE:
3659 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3660
3661int
3662safe_cancel (Coro::State self, ...)
3663 C_ARGS: aTHX_ self, &ST (1), items - 1
3360 3664
3361void 3665void
3362schedule (...) 3666schedule (...)
3363 CODE: 3667 CODE:
3364 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3668 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3394_set_readyhook (SV *hook) 3698_set_readyhook (SV *hook)
3395 PROTOTYPE: $ 3699 PROTOTYPE: $
3396 CODE: 3700 CODE:
3397 SvREFCNT_dec (coro_readyhook); 3701 SvREFCNT_dec (coro_readyhook);
3398 SvGETMAGIC (hook); 3702 SvGETMAGIC (hook);
3703 if (SvOK (hook))
3704 {
3399 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3705 coro_readyhook = newSVsv (hook);
3706 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3707 }
3708 else
3709 {
3710 coro_readyhook = 0;
3711 CORO_READYHOOK = 0;
3712 }
3400 3713
3401int 3714int
3402prio (Coro::State coro, int newprio = 0) 3715prio (Coro::State coro, int newprio = 0)
3403 PROTOTYPE: $;$ 3716 PROTOTYPE: $;$
3404 ALIAS: 3717 ALIAS:
… …
3468 for (i = 1; i < items; ++i) 3781 for (i = 1; i < items; ++i)
3469 av_push (av, SvREFCNT_inc_NN (ST (i))); 3782 av_push (av, SvREFCNT_inc_NN (ST (i)));
3470 3783
3471 if ((SV *)hv == &PL_sv_undef) 3784 if ((SV *)hv == &PL_sv_undef)
3472 { 3785 {
3473 PUSHMARK (SP); 3786 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3474 EXTEND (SP, 2);
3475 PUSHs (sv_Coro);
3476 PUSHs ((SV *)cv_pool_handler);
3477 PUTBACK;
3478 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3479 SPAGAIN;
3480
3481 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3787 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3788 SvREFCNT_dec (sv);
3482 } 3789 }
3483 3790
3484 { 3791 {
3485 struct coro *coro = SvSTATE_hv (hv); 3792 struct coro *coro = SvSTATE_hv (hv);
3486 3793
… …
3758 { 4065 {
3759 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4066 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3760 coro_old_pp_sselect = 0; 4067 coro_old_pp_sselect = 0;
3761 } 4068 }
3762 4069
3763

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines