… | |
… | |
95 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
96 | #endif |
96 | #endif |
97 | #ifndef newSV |
97 | #ifndef newSV |
98 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
99 | #endif |
99 | #endif |
|
|
100 | #ifndef CvISXSUB_on |
|
|
101 | # define CvISXSUB_on(cv) (void)cv |
|
|
102 | #endif |
100 | |
103 | |
101 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
102 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
104 | #endif |
107 | #endif |
… | |
… | |
147 | # if CORO_PTHREAD |
150 | # if CORO_PTHREAD |
148 | static void *coro_thx; |
151 | static void *coro_thx; |
149 | # endif |
152 | # endif |
150 | #endif |
153 | #endif |
151 | |
154 | |
152 | /* helper storage struct for Coro::AIO */ |
|
|
153 | struct 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 | |
|
|
162 | static double (*nvtime)(); /* so why doesn't it take void? */ |
155 | static double (*nvtime)(); /* so why doesn't it take void? */ |
163 | |
156 | |
164 | static U32 cctx_gen; |
157 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
158 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
159 | static struct CoroAPI coroapi; |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
160 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
168 | static JMPENV *main_top_env; |
161 | static JMPENV *main_top_env; |
169 | static HV *coro_state_stash, *coro_stash; |
162 | static HV *coro_state_stash, *coro_stash; |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
163 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
171 | static volatile struct coro *transfer_next; |
|
|
172 | |
164 | |
173 | static GV *irsgv; /* $/ */ |
165 | static GV *irsgv; /* $/ */ |
174 | static GV *stdoutgv; /* *STDOUT */ |
166 | static GV *stdoutgv; /* *STDOUT */ |
175 | static SV *rv_diehook; |
167 | static SV *rv_diehook; |
176 | static SV *rv_warnhook; |
168 | static SV *rv_warnhook; |
… | |
… | |
242 | /* this is a structure representing a perl-level coroutine */ |
234 | /* this is a structure representing a perl-level coroutine */ |
243 | struct coro { |
235 | struct coro { |
244 | /* the C coroutine allocated to this perl coroutine, if any */ |
236 | /* the C coroutine allocated to this perl coroutine, if any */ |
245 | coro_cctx *cctx; |
237 | coro_cctx *cctx; |
246 | |
238 | |
247 | /* process data */ |
239 | /* state data */ |
248 | struct CoroSLF slf_frame; /* saved slf frame */ |
240 | struct CoroSLF slf_frame; /* saved slf frame */ |
249 | AV *mainstack; |
241 | AV *mainstack; |
250 | perl_slots *slot; /* basically the saved sp */ |
242 | perl_slots *slot; /* basically the saved sp */ |
251 | |
243 | |
252 | AV *args; /* data associated with this coroutine (initial args) */ |
244 | AV *args; /* data associated with this coroutine (initial args) */ |
… | |
… | |
270 | }; |
262 | }; |
271 | |
263 | |
272 | typedef struct coro *Coro__State; |
264 | typedef struct coro *Coro__State; |
273 | typedef struct coro *Coro__State_or_hashref; |
265 | typedef struct coro *Coro__State_or_hashref; |
274 | |
266 | |
|
|
267 | /* the following variables are effectively part of the perl context */ |
|
|
268 | /* and get copied between struct coro and these variables */ |
|
|
269 | /* the mainr easonw e don't support windows process emulation */ |
275 | static struct CoroSLF slf_frame; /* the current slf frame */ |
270 | static struct CoroSLF slf_frame; /* the current slf frame */ |
|
|
271 | static SV *coro_throw; |
276 | |
272 | |
277 | /** Coro ********************************************************************/ |
273 | /** Coro ********************************************************************/ |
278 | |
274 | |
279 | #define PRIO_MAX 3 |
275 | #define PRIO_MAX 3 |
280 | #define PRIO_HIGH 1 |
276 | #define PRIO_HIGH 1 |
… | |
… | |
381 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
377 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
382 | |
378 | |
383 | return 0; |
379 | return 0; |
384 | } |
380 | } |
385 | |
381 | |
386 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
382 | #define CORO_MAGIC_type_cv 26 |
387 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
383 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
388 | |
384 | |
389 | static MGVTBL coro_cv_vtbl = { |
385 | static MGVTBL coro_cv_vtbl = { |
390 | 0, 0, 0, 0, |
386 | 0, 0, 0, 0, |
391 | coro_cv_free |
387 | coro_cv_free |
392 | }; |
388 | }; |
393 | |
389 | |
|
|
390 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
391 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
392 | ? SvMAGIC (sv) \ |
|
|
393 | : mg_find (sv, type)) |
|
|
394 | |
394 | #define CORO_MAGIC(sv, type) \ |
395 | #define CORO_MAGIC(sv, type) \ |
395 | expect_true (SvMAGIC (sv)) \ |
396 | (expect_true (SvMAGIC (sv)) \ |
396 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
397 | ? CORO_MAGIC_NN (sv, type) \ |
397 | ? SvMAGIC (sv) \ |
|
|
398 | : mg_find (sv, type) \ |
|
|
399 | : 0 |
398 | : 0) |
400 | |
399 | |
401 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
400 | #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) |
401 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
403 | |
402 | |
404 | INLINE struct coro * |
403 | INLINE struct coro * |
405 | SvSTATE_ (pTHX_ SV *coro) |
404 | SvSTATE_ (pTHX_ SV *coro) |
406 | { |
405 | { |
407 | HV *stash; |
406 | HV *stash; |
… | |
… | |
425 | return (struct coro *)mg->mg_ptr; |
424 | return (struct coro *)mg->mg_ptr; |
426 | } |
425 | } |
427 | |
426 | |
428 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
427 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
429 | |
428 | |
430 | /* fastert than SvSTATE, but expects a coroutine hv */ |
429 | /* faster than SvSTATE, but expects a coroutine hv */ |
431 | INLINE struct coro * |
430 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
432 | SvSTATE_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)) |
431 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
442 | |
432 | |
443 | /* the next two functions merely cache the padlists */ |
433 | /* the next two functions merely cache the padlists */ |
444 | static void |
434 | static void |
445 | get_padlist (pTHX_ CV *cv) |
435 | get_padlist (pTHX_ CV *cv) |
… | |
… | |
514 | } |
504 | } |
515 | |
505 | |
516 | PUTBACK; |
506 | PUTBACK; |
517 | } |
507 | } |
518 | |
508 | |
519 | slf_frame = c->slf_frame; |
509 | slf_frame = c->slf_frame; |
|
|
510 | coro_throw = c->throw; |
520 | } |
511 | } |
521 | |
512 | |
522 | static void |
513 | static void |
523 | save_perl (pTHX_ Coro__State c) |
514 | save_perl (pTHX_ Coro__State c) |
524 | { |
515 | { |
|
|
516 | c->throw = coro_throw; |
525 | c->slf_frame = slf_frame; |
517 | c->slf_frame = slf_frame; |
526 | |
518 | |
527 | { |
519 | { |
528 | dSP; |
520 | dSP; |
529 | I32 cxix = cxstack_ix; |
521 | I32 cxix = cxstack_ix; |
… | |
… | |
822 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
814 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
823 | { |
815 | { |
824 | return 0; |
816 | return 0; |
825 | } |
817 | } |
826 | |
818 | |
827 | static void |
819 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
828 | coro_setup (pTHX_ struct coro *coro) |
820 | coro_setup (pTHX_ struct coro *coro) |
829 | { |
821 | { |
830 | /* |
822 | /* |
831 | * emulate part of the perl startup here. |
823 | * emulate part of the perl startup here. |
832 | */ |
824 | */ |
… | |
… | |
875 | /* this newly created coroutine might be run on an existing cctx which most |
867 | /* 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. |
868 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
877 | */ |
869 | */ |
878 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
870 | 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 */ |
871 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
872 | |
|
|
873 | coro_throw = coro->throw; |
880 | } |
874 | } |
881 | |
875 | |
882 | static void |
876 | static void |
883 | coro_destruct (pTHX_ struct coro *coro) |
877 | coro_destruct (pTHX_ struct coro *coro) |
884 | { |
878 | { |
… | |
… | |
908 | |
902 | |
909 | SvREFCNT_dec (PL_diehook); |
903 | SvREFCNT_dec (PL_diehook); |
910 | SvREFCNT_dec (PL_warnhook); |
904 | SvREFCNT_dec (PL_warnhook); |
911 | |
905 | |
912 | SvREFCNT_dec (coro->saved_deffh); |
906 | SvREFCNT_dec (coro->saved_deffh); |
913 | SvREFCNT_dec (coro->throw); |
907 | SvREFCNT_dec (coro_throw); |
914 | |
908 | |
915 | coro_destruct_stacks (aTHX); |
909 | coro_destruct_stacks (aTHX); |
916 | } |
910 | } |
917 | |
911 | |
918 | INLINE void |
912 | INLINE void |
… | |
… | |
1087 | |
1081 | |
1088 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1082 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1089 | INLINE void |
1083 | INLINE void |
1090 | transfer_tail (pTHX) |
1084 | transfer_tail (pTHX) |
1091 | { |
1085 | { |
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); |
1086 | 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 | } |
1087 | } |
1107 | |
1088 | |
1108 | /* |
1089 | /* |
1109 | * this is a _very_ stripped down perl interpreter ;) |
1090 | * this is a _very_ stripped down perl interpreter ;) |
1110 | */ |
1091 | */ |
… | |
… | |
1125 | |
1106 | |
1126 | /* inject a fake subroutine call to cctx_init */ |
1107 | /* inject a fake subroutine call to cctx_init */ |
1127 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1108 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1128 | |
1109 | |
1129 | /* cctx_run is the alternative tail of transfer() */ |
1110 | /* cctx_run is the alternative tail of transfer() */ |
1130 | /* TODO: throwing an exception here might be deadly, VERIFY */ |
|
|
1131 | transfer_tail (aTHX); |
1111 | transfer_tail (aTHX); |
1132 | |
1112 | |
1133 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1113 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1134 | PL_restartop = PL_op; |
1114 | PL_restartop = PL_op; |
1135 | perl_run (PL_curinterp); |
1115 | perl_run (PL_curinterp); |
… | |
… | |
1291 | /** coroutine switching *****************************************************/ |
1271 | /** coroutine switching *****************************************************/ |
1292 | |
1272 | |
1293 | static void |
1273 | static void |
1294 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1274 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1295 | { |
1275 | { |
|
|
1276 | /* TODO: throwing up here is considered harmful */ |
|
|
1277 | |
1296 | if (expect_true (prev != next)) |
1278 | if (expect_true (prev != next)) |
1297 | { |
1279 | { |
1298 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1280 | 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,"); |
1281 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1300 | |
1282 | |
… | |
… | |
1310 | #endif |
1292 | #endif |
1311 | } |
1293 | } |
1312 | } |
1294 | } |
1313 | |
1295 | |
1314 | /* always use the TRANSFER macro */ |
1296 | /* always use the TRANSFER macro */ |
1315 | static void NOINLINE |
1297 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1316 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1298 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1317 | { |
1299 | { |
1318 | dSTACKLEVEL; |
1300 | dSTACKLEVEL; |
1319 | |
1301 | |
1320 | /* sometimes transfer is only called to set idle_sp */ |
1302 | /* sometimes transfer is only called to set idle_sp */ |
… | |
… | |
1377 | ++next->usecount; |
1359 | ++next->usecount; |
1378 | |
1360 | |
1379 | if (expect_true (!next->cctx)) |
1361 | if (expect_true (!next->cctx)) |
1380 | next->cctx = cctx_get (aTHX); |
1362 | next->cctx = cctx_get (aTHX); |
1381 | |
1363 | |
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)) |
1364 | if (expect_false (prev__cctx != next->cctx)) |
1386 | { |
1365 | { |
1387 | prev__cctx->top_env = PL_top_env; |
1366 | prev__cctx->top_env = PL_top_env; |
1388 | PL_top_env = next->cctx->top_env; |
1367 | PL_top_env = next->cctx->top_env; |
1389 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1368 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
… | |
… | |
1705 | if (coro->flags & CF_RUNNING) |
1684 | if (coro->flags & CF_RUNNING) |
1706 | PL_runops = RUNOPS_DEFAULT; |
1685 | PL_runops = RUNOPS_DEFAULT; |
1707 | else |
1686 | else |
1708 | coro->slot->runops = RUNOPS_DEFAULT; |
1687 | coro->slot->runops = RUNOPS_DEFAULT; |
1709 | } |
1688 | } |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | /*****************************************************************************/ |
|
|
1692 | /* schedule-like-function opcode (SLF) */ |
|
|
1693 | |
|
|
1694 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1695 | static const CV *slf_cv; |
|
|
1696 | static SV **slf_argv; |
|
|
1697 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1698 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1699 | |
|
|
1700 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1701 | /* recreate the stack frame as perl will on following calls */ |
|
|
1702 | /* since entersub cleared the stack */ |
|
|
1703 | static OP * |
|
|
1704 | pp_restore (pTHX) |
|
|
1705 | { |
|
|
1706 | int i; |
|
|
1707 | SV **SP = PL_stack_base + slf_ax; |
|
|
1708 | |
|
|
1709 | PUSHMARK (SP); |
|
|
1710 | |
|
|
1711 | EXTEND (SP, slf_argc + 1); |
|
|
1712 | |
|
|
1713 | for (i = 0; i < slf_argc; ++i) |
|
|
1714 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1715 | |
|
|
1716 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1717 | |
|
|
1718 | RETURNOP (slf_restore.op_first); |
|
|
1719 | } |
|
|
1720 | |
|
|
1721 | static void |
|
|
1722 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1723 | { |
|
|
1724 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1725 | } |
|
|
1726 | |
|
|
1727 | static void |
|
|
1728 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1729 | { |
|
|
1730 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1731 | |
|
|
1732 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1733 | frame->check = slf_check_nop; |
|
|
1734 | frame->data = (void *)SvIV (arg [0]); |
|
|
1735 | } |
|
|
1736 | |
|
|
1737 | static void |
|
|
1738 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1739 | { |
|
|
1740 | SV **arg = (SV **)slf_frame.data; |
|
|
1741 | |
|
|
1742 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | static void |
|
|
1746 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1747 | { |
|
|
1748 | if (items != 2) |
|
|
1749 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1750 | |
|
|
1751 | frame->prepare = slf_prepare_transfer; |
|
|
1752 | frame->check = slf_check_nop; |
|
|
1753 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1754 | } |
|
|
1755 | |
|
|
1756 | static void |
|
|
1757 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1758 | { |
|
|
1759 | frame->prepare = prepare_schedule; |
|
|
1760 | frame->check = slf_check_nop; |
|
|
1761 | } |
|
|
1762 | |
|
|
1763 | static void |
|
|
1764 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1765 | { |
|
|
1766 | frame->prepare = prepare_cede; |
|
|
1767 | frame->check = slf_check_nop; |
|
|
1768 | } |
|
|
1769 | |
|
|
1770 | static void |
|
|
1771 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1772 | { |
|
|
1773 | frame->prepare = prepare_cede_notself; |
|
|
1774 | frame->check = slf_check_nop; |
|
|
1775 | } |
|
|
1776 | |
|
|
1777 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1778 | #define CVf_SLF 0x4000 |
|
|
1779 | |
|
|
1780 | /* |
|
|
1781 | * these not obviously related functions are all rolled into one |
|
|
1782 | * function to increase chances that they all will call transfer with the same |
|
|
1783 | * stack offset |
|
|
1784 | * SLF stands for "schedule-like-function". |
|
|
1785 | */ |
|
|
1786 | static OP * |
|
|
1787 | pp_slf (pTHX) |
|
|
1788 | { |
|
|
1789 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1790 | |
|
|
1791 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1792 | /* the latter happens when a new coro has been started */ |
|
|
1793 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1794 | if (expect_true (!slf_frame.prepare)) |
|
|
1795 | { |
|
|
1796 | /* first iteration */ |
|
|
1797 | dSP; |
|
|
1798 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1799 | int items = SP - arg; /* args without function object */ |
|
|
1800 | SV *gv = *sp; |
|
|
1801 | |
|
|
1802 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1803 | /* for us, divert to the real entersub */ |
|
|
1804 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1805 | || !GvCV (gv) |
|
|
1806 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1807 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1808 | |
|
|
1809 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1810 | { |
|
|
1811 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1812 | AV *av = GvAV (PL_defgv); |
|
|
1813 | arg = AvARRAY (av); |
|
|
1814 | items = AvFILLp (av) + 1; |
|
|
1815 | } |
|
|
1816 | |
|
|
1817 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1818 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1819 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1820 | |
|
|
1821 | /* pop args */ |
|
|
1822 | SP = PL_stack_base + POPMARK; |
|
|
1823 | |
|
|
1824 | PUTBACK; |
|
|
1825 | } |
|
|
1826 | |
|
|
1827 | /* now that we have a slf_frame, interpret it! */ |
|
|
1828 | /* we use a callback system not to make the code needlessly */ |
|
|
1829 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1830 | |
|
|
1831 | do |
|
|
1832 | { |
|
|
1833 | struct coro_transfer_args ta; |
|
|
1834 | |
|
|
1835 | slf_frame.prepare (aTHX_ &ta); |
|
|
1836 | TRANSFER (ta, 0); |
|
|
1837 | |
|
|
1838 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1839 | } |
|
|
1840 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1841 | |
|
|
1842 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1843 | |
|
|
1844 | /* return value handling - mostly like entersub */ |
|
|
1845 | { |
|
|
1846 | dSP; |
|
|
1847 | SV **bot = PL_stack_base + checkmark; |
|
|
1848 | int gimme = GIMME_V; |
|
|
1849 | |
|
|
1850 | /* make sure we put something on the stack in scalar context */ |
|
|
1851 | if (gimme == G_SCALAR) |
|
|
1852 | { |
|
|
1853 | if (sp == bot) |
|
|
1854 | XPUSHs (&PL_sv_undef); |
|
|
1855 | |
|
|
1856 | SP = bot + 1; |
|
|
1857 | } |
|
|
1858 | |
|
|
1859 | PUTBACK; |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | /* exception handling */ |
|
|
1863 | if (expect_false (coro_throw)) |
|
|
1864 | { |
|
|
1865 | SV *exception = sv_2mortal (coro_throw); |
|
|
1866 | |
|
|
1867 | coro_throw = 0; |
|
|
1868 | sv_setsv (ERRSV, exception); |
|
|
1869 | croak (0); |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | return NORMAL; |
|
|
1873 | } |
|
|
1874 | |
|
|
1875 | static void |
|
|
1876 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1877 | { |
|
|
1878 | int i; |
|
|
1879 | SV **arg = PL_stack_base + ax; |
|
|
1880 | int items = PL_stack_sp - arg + 1; |
|
|
1881 | |
|
|
1882 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1883 | |
|
|
1884 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1885 | && PL_op->op_ppaddr != pp_slf) |
|
|
1886 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1887 | |
|
|
1888 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1889 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1890 | slf_cv = cv; |
|
|
1891 | |
|
|
1892 | /* we patch the op, and then re-run the whole call */ |
|
|
1893 | /* we have to put the same argument on the stack for this to work */ |
|
|
1894 | /* and this will be done by pp_restore */ |
|
|
1895 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1896 | slf_restore.op_type = OP_CUSTOM; |
|
|
1897 | slf_restore.op_ppaddr = pp_restore; |
|
|
1898 | slf_restore.op_first = PL_op; |
|
|
1899 | |
|
|
1900 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1901 | |
|
|
1902 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1903 | { |
|
|
1904 | if (items > slf_arga) |
|
|
1905 | { |
|
|
1906 | slf_arga = items; |
|
|
1907 | free (slf_argv); |
|
|
1908 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | slf_argc = items; |
|
|
1912 | |
|
|
1913 | for (i = 0; i < items; ++i) |
|
|
1914 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1915 | } |
|
|
1916 | else |
|
|
1917 | slf_argc = 0; |
|
|
1918 | |
|
|
1919 | PL_op->op_ppaddr = pp_slf; |
|
|
1920 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1921 | |
|
|
1922 | PL_op = (OP *)&slf_restore; |
1710 | } |
1923 | } |
1711 | |
1924 | |
1712 | /*****************************************************************************/ |
1925 | /*****************************************************************************/ |
1713 | /* PerlIO::cede */ |
1926 | /* PerlIO::cede */ |
1714 | |
1927 | |
… | |
… | |
1783 | PerlIOBuf_get_cnt, |
1996 | PerlIOBuf_get_cnt, |
1784 | PerlIOBuf_set_ptrcnt, |
1997 | PerlIOBuf_set_ptrcnt, |
1785 | }; |
1998 | }; |
1786 | |
1999 | |
1787 | /*****************************************************************************/ |
2000 | /*****************************************************************************/ |
|
|
2001 | /* Coro::Semaphore */ |
1788 | |
2002 | |
1789 | static const CV *slf_cv; /* for quick consistency check */ |
|
|
1790 | |
|
|
1791 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1792 | static SV *slf_arg0; |
|
|
1793 | static SV *slf_arg1; |
|
|
1794 | static 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 */ |
|
|
1799 | static OP * |
|
|
1800 | pp_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 | |
|
|
1815 | static void |
2003 | static void |
1816 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1817 | { |
|
|
1818 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1819 | } |
|
|
1820 | |
|
|
1821 | static void |
|
|
1822 | slf_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 | |
|
|
1831 | static void |
|
|
1832 | slf_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 | |
|
|
1839 | static void |
|
|
1840 | slf_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 | |
|
|
1850 | static void |
|
|
1851 | slf_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 | |
|
|
1857 | static void |
|
|
1858 | slf_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 | |
|
|
1864 | static void |
|
|
1865 | slf_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 | */ |
|
|
1880 | static OP * |
|
|
1881 | pp_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 | |
|
|
1956 | static void |
|
|
1957 | api_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 | |
|
|
1991 | static void |
|
|
1992 | coro_semaphore_adjust (pTHX_ AV *av, int adjust) |
2004 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
1993 | { |
2005 | { |
1994 | SV *count_sv = AvARRAY (av)[0]; |
2006 | SV *count_sv = AvARRAY (av)[0]; |
1995 | IV count = SvIVX (count_sv); |
2007 | IV count = SvIVX (count_sv); |
1996 | |
2008 | |
1997 | count += adjust; |
2009 | count += adjust; |
1998 | SvIVX (count_sv) = count; |
2010 | SvIVX (count_sv) = count; |
1999 | |
2011 | |
2000 | /* now wake up as many waiters as possible */ |
2012 | /* now wake up as many waiters as are expected to lock */ |
2001 | while (count > 0 && AvFILLp (av) >= count) |
2013 | while (count > 0 && AvFILLp (av) > 0) |
2002 | { |
2014 | { |
2003 | SV *cb; |
2015 | SV *cb; |
2004 | |
2016 | |
2005 | /* swap first two elements so we can shift a waiter */ |
2017 | /* swap first two elements so we can shift a waiter */ |
2006 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2018 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
… | |
… | |
2019 | } |
2031 | } |
2020 | |
2032 | |
2021 | static void |
2033 | static void |
2022 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2034 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2023 | { |
2035 | { |
2024 | /* call $sem->adjust (0) to possibly wake up some waiters */ |
2036 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2025 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2037 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2026 | } |
2038 | } |
2027 | |
2039 | |
2028 | static int |
2040 | static int |
2029 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2041 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
… | |
… | |
2060 | |
2072 | |
2061 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2073 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2062 | { |
2074 | { |
2063 | frame->data = (void *)av; |
2075 | frame->data = (void *)av; |
2064 | frame->prepare = prepare_nop; |
2076 | frame->prepare = prepare_nop; |
|
|
2077 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2065 | } |
2078 | } |
2066 | else |
2079 | else |
2067 | { |
2080 | { |
2068 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2081 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2069 | |
2082 | |
2070 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2083 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2071 | frame->prepare = prepare_schedule; |
2084 | frame->prepare = prepare_schedule; |
2072 | |
2085 | |
2073 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2086 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2074 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2087 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2088 | assert (!SvSTATE_current->on_destroy);//D |
2075 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2089 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2076 | } |
2090 | } |
2077 | |
2091 | |
2078 | frame->check = slf_check_semaphore_down; |
2092 | frame->check = slf_check_semaphore_down; |
2079 | |
2093 | |
2080 | } |
2094 | } |
2081 | |
2095 | |
2082 | /*****************************************************************************/ |
2096 | /*****************************************************************************/ |
|
|
2097 | /* gensub: simple closure generation utility */ |
2083 | |
2098 | |
2084 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2099 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2085 | |
2100 | |
2086 | /* create a closure from XS, returns a code reference */ |
2101 | /* create a closure from XS, returns a code reference */ |
2087 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2102 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2088 | /* the callback must use dXSARGS/XSRETURN */ |
2103 | /* the callback must use dXSARGS/XSRETURN */ |
2089 | static SV * |
2104 | static SV * |
2090 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
2105 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
2091 | { |
2106 | { |
2092 | CV *cv = (CV *)NEWSV (0, 0); |
2107 | CV *cv = (CV *)newSV (0); |
2093 | |
2108 | |
2094 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2109 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2095 | |
2110 | |
2096 | CvANON_on (cv); |
2111 | CvANON_on (cv); |
2097 | CvISXSUB_on (cv); |
2112 | CvISXSUB_on (cv); |
2098 | CvXSUB (cv) = xsub; |
2113 | CvXSUB (cv) = xsub; |
2099 | GENSUB_ARG = arg; |
2114 | GENSUB_ARG = arg; |
2100 | |
2115 | |
2101 | return newRV_noinc ((SV *)cv); |
2116 | return newRV_noinc ((SV *)cv); |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | /*****************************************************************************/ |
|
|
2120 | /* Coro::AIO */ |
|
|
2121 | |
|
|
2122 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2123 | |
|
|
2124 | /* helper storage struct */ |
|
|
2125 | struct io_state |
|
|
2126 | { |
|
|
2127 | int errorno; |
|
|
2128 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2129 | int laststatval; |
|
|
2130 | Stat_t statcache; |
|
|
2131 | }; |
|
|
2132 | |
|
|
2133 | static void |
|
|
2134 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2135 | { |
|
|
2136 | dXSARGS; |
|
|
2137 | AV *state = (AV *)GENSUB_ARG; |
|
|
2138 | SV *coro = av_pop (state); |
|
|
2139 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2140 | |
|
|
2141 | av_extend (state, items); |
|
|
2142 | |
|
|
2143 | sv_upgrade (data_sv, SVt_PV); |
|
|
2144 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2145 | SvPOK_only (data_sv); |
|
|
2146 | |
|
|
2147 | { |
|
|
2148 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2149 | |
|
|
2150 | data->errorno = errno; |
|
|
2151 | data->laststype = PL_laststype; |
|
|
2152 | data->laststatval = PL_laststatval; |
|
|
2153 | data->statcache = PL_statcache; |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2157 | { |
|
|
2158 | int i; |
|
|
2159 | |
|
|
2160 | for (i = 0; i < items; ++i) |
|
|
2161 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | av_push (state, data_sv); |
|
|
2165 | |
|
|
2166 | api_ready (aTHX_ coro); |
|
|
2167 | SvREFCNT_dec (coro); |
|
|
2168 | SvREFCNT_dec ((AV *)state); |
|
|
2169 | } |
|
|
2170 | |
|
|
2171 | static int |
|
|
2172 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2173 | { |
|
|
2174 | AV *state = (AV *)frame->data; |
|
|
2175 | |
|
|
2176 | /* one element that is an RV? repeat! */ |
|
|
2177 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2178 | return 1; |
|
|
2179 | |
|
|
2180 | /* restore status */ |
|
|
2181 | { |
|
|
2182 | SV *data_sv = av_pop (state); |
|
|
2183 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2184 | |
|
|
2185 | errno = data->errorno; |
|
|
2186 | PL_laststype = data->laststype; |
|
|
2187 | PL_laststatval = data->laststatval; |
|
|
2188 | PL_statcache = data->statcache; |
|
|
2189 | |
|
|
2190 | SvREFCNT_dec (data_sv); |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | /* push result values */ |
|
|
2194 | { |
|
|
2195 | dSP; |
|
|
2196 | int i; |
|
|
2197 | |
|
|
2198 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2199 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2200 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2201 | |
|
|
2202 | PUTBACK; |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | return 0; |
|
|
2206 | } |
|
|
2207 | |
|
|
2208 | static void |
|
|
2209 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2210 | { |
|
|
2211 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2212 | SV *coro_hv = SvRV (coro_current); |
|
|
2213 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2214 | |
|
|
2215 | /* put our coroutine id on the state arg */ |
|
|
2216 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2217 | |
|
|
2218 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2219 | if (coro->prio) |
|
|
2220 | { |
|
|
2221 | dSP; |
|
|
2222 | |
|
|
2223 | static SV *prio_cv; |
|
|
2224 | static SV *prio_sv; |
|
|
2225 | |
|
|
2226 | if (expect_false (!prio_cv)) |
|
|
2227 | { |
|
|
2228 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2229 | prio_sv = newSViv (0); |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | PUSHMARK (SP); |
|
|
2233 | sv_setiv (prio_sv, coro->prio); |
|
|
2234 | XPUSHs (prio_sv); |
|
|
2235 | |
|
|
2236 | PUTBACK; |
|
|
2237 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2238 | } |
|
|
2239 | |
|
|
2240 | /* now call the original request */ |
|
|
2241 | { |
|
|
2242 | dSP; |
|
|
2243 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2244 | int i; |
|
|
2245 | |
|
|
2246 | PUSHMARK (SP); |
|
|
2247 | |
|
|
2248 | /* first push all args to the stack */ |
|
|
2249 | EXTEND (SP, items + 1); |
|
|
2250 | |
|
|
2251 | for (i = 0; i < items; ++i) |
|
|
2252 | PUSHs (arg [i]); |
|
|
2253 | |
|
|
2254 | /* now push the callback closure */ |
|
|
2255 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2256 | |
|
|
2257 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2258 | PUTBACK; |
|
|
2259 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2260 | } |
|
|
2261 | |
|
|
2262 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2263 | frame->data = (void *)state; |
|
|
2264 | frame->prepare = prepare_schedule; |
|
|
2265 | frame->check = slf_check_aio_req; |
|
|
2266 | } |
|
|
2267 | |
|
|
2268 | static void |
|
|
2269 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2270 | { |
|
|
2271 | dXSARGS; |
|
|
2272 | |
|
|
2273 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2274 | |
|
|
2275 | XSRETURN_EMPTY; |
2102 | } |
2276 | } |
2103 | |
2277 | |
2104 | /*****************************************************************************/ |
2278 | /*****************************************************************************/ |
2105 | |
2279 | |
2106 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2280 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
… | |
… | |
2206 | RETVAL |
2380 | RETVAL |
2207 | |
2381 | |
2208 | void |
2382 | void |
2209 | _set_stacklevel (...) |
2383 | _set_stacklevel (...) |
2210 | CODE: |
2384 | CODE: |
2211 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
2385 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
2212 | |
2386 | |
2213 | void |
2387 | void |
2214 | transfer (...) |
2388 | transfer (...) |
2215 | PROTOTYPE: $$ |
2389 | PROTOTYPE: $$ |
2216 | CODE: |
2390 | CODE: |
2217 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
2391 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2218 | |
2392 | |
2219 | bool |
2393 | bool |
2220 | _destroy (SV *coro_sv) |
2394 | _destroy (SV *coro_sv) |
2221 | CODE: |
2395 | CODE: |
2222 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2396 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2340 | |
2514 | |
2341 | void |
2515 | void |
2342 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2516 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2343 | PROTOTYPE: $;$ |
2517 | PROTOTYPE: $;$ |
2344 | CODE: |
2518 | CODE: |
|
|
2519 | { |
|
|
2520 | struct coro *current = SvSTATE_current; |
|
|
2521 | SV **throwp = self == current ? &coro_throw : &self->throw; |
2345 | SvREFCNT_dec (self->throw); |
2522 | SvREFCNT_dec (*throwp); |
2346 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2523 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2524 | } |
2347 | |
2525 | |
2348 | void |
2526 | void |
2349 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2527 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2350 | PROTOTYPE: $;$ |
2528 | PROTOTYPE: $;$ |
2351 | C_ARGS: aTHX_ coro, flags |
2529 | C_ARGS: aTHX_ coro, flags |
… | |
… | |
2400 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2578 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2401 | |
2579 | |
2402 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2580 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2403 | } |
2581 | } |
2404 | |
2582 | |
|
|
2583 | |
2405 | MODULE = Coro::State PACKAGE = Coro |
2584 | MODULE = Coro::State PACKAGE = Coro |
2406 | |
2585 | |
2407 | BOOT: |
2586 | BOOT: |
2408 | { |
2587 | { |
2409 | int i; |
2588 | int i; |
… | |
… | |
2445 | } |
2624 | } |
2446 | |
2625 | |
2447 | void |
2626 | void |
2448 | schedule (...) |
2627 | schedule (...) |
2449 | CODE: |
2628 | CODE: |
2450 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); |
2629 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
2451 | |
2630 | |
2452 | void |
2631 | void |
2453 | cede (...) |
2632 | cede (...) |
2454 | CODE: |
2633 | CODE: |
2455 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); |
2634 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
2456 | |
2635 | |
2457 | void |
2636 | void |
2458 | cede_notself (...) |
2637 | cede_notself (...) |
2459 | CODE: |
2638 | CODE: |
2460 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); |
2639 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2461 | |
2640 | |
2462 | void |
2641 | void |
2463 | _set_current (SV *current) |
2642 | _set_current (SV *current) |
2464 | PROTOTYPE: $ |
2643 | PROTOTYPE: $ |
2465 | CODE: |
2644 | CODE: |
… | |
… | |
2553 | |
2732 | |
2554 | void |
2733 | void |
2555 | _pool_2 (SV *cb) |
2734 | _pool_2 (SV *cb) |
2556 | CODE: |
2735 | CODE: |
2557 | { |
2736 | { |
2558 | struct coro *coro = SvSTATE_current; |
2737 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2738 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2559 | |
2739 | |
2560 | sv_setsv (cb, &PL_sv_undef); |
2740 | sv_setsv (cb, &PL_sv_undef); |
2561 | |
2741 | |
2562 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2742 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2563 | coro->saved_deffh = 0; |
2743 | coro->saved_deffh = 0; |
… | |
… | |
2570 | SvREFCNT_dec (old); |
2750 | SvREFCNT_dec (old); |
2571 | croak ("\3async_pool terminate\2\n"); |
2751 | croak ("\3async_pool terminate\2\n"); |
2572 | } |
2752 | } |
2573 | |
2753 | |
2574 | av_clear (GvAV (PL_defgv)); |
2754 | av_clear (GvAV (PL_defgv)); |
2575 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2755 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2576 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2756 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2577 | |
2757 | |
2578 | coro->prio = 0; |
2758 | coro->prio = 0; |
2579 | |
2759 | |
2580 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2760 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
… | |
… | |
2582 | |
2762 | |
2583 | av_push (av_async_pool, newSVsv (coro_current)); |
2763 | av_push (av_async_pool, newSVsv (coro_current)); |
2584 | } |
2764 | } |
2585 | |
2765 | |
2586 | |
2766 | |
2587 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2588 | |
|
|
2589 | void |
|
|
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 | |
|
|
2619 | void |
|
|
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 | |
|
|
2639 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2640 | |
|
|
2641 | BOOT: |
|
|
2642 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2643 | |
|
|
2644 | void |
|
|
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 | |
|
|
2669 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2767 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2670 | |
2768 | |
2671 | BOOT: |
2769 | BOOT: |
2672 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2770 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2771 | |
2673 | |
2772 | |
2674 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2773 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2675 | |
2774 | |
2676 | SV * |
2775 | SV * |
2677 | new (SV *klass, SV *count_ = 0) |
2776 | new (SV *klass, SV *count_ = 0) |
… | |
… | |
2700 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2799 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2701 | |
2800 | |
2702 | void |
2801 | void |
2703 | down (SV *self) |
2802 | down (SV *self) |
2704 | CODE: |
2803 | CODE: |
2705 | api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); |
2804 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
2706 | |
2805 | |
2707 | void |
2806 | void |
2708 | try (SV *self) |
2807 | try (SV *self) |
2709 | PPCODE: |
2808 | PPCODE: |
2710 | { |
2809 | { |
… | |
… | |
2737 | for (i = 1; i <= AvFILLp (av); ++i) |
2836 | for (i = 1; i <= AvFILLp (av); ++i) |
2738 | PUSHs (newSVsv (AvARRAY (av)[i])); |
2837 | PUSHs (newSVsv (AvARRAY (av)[i])); |
2739 | } |
2838 | } |
2740 | } |
2839 | } |
2741 | |
2840 | |
|
|
2841 | |
|
|
2842 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2843 | |
|
|
2844 | BOOT: |
|
|
2845 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2846 | |
|
|
2847 | void |
|
|
2848 | _schedule (...) |
|
|
2849 | CODE: |
|
|
2850 | { |
|
|
2851 | static int incede; |
|
|
2852 | |
|
|
2853 | api_cede_notself (aTHX); |
|
|
2854 | |
|
|
2855 | ++incede; |
|
|
2856 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2857 | ; |
|
|
2858 | |
|
|
2859 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2860 | if (coro_nready >= incede) |
|
|
2861 | { |
|
|
2862 | PUSHMARK (SP); |
|
|
2863 | PUTBACK; |
|
|
2864 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2865 | SPAGAIN; |
|
|
2866 | } |
|
|
2867 | |
|
|
2868 | --incede; |
|
|
2869 | } |
|
|
2870 | |
|
|
2871 | |
|
|
2872 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2873 | |
|
|
2874 | void |
|
|
2875 | _register (char *target, char *proto, SV *req) |
|
|
2876 | CODE: |
|
|
2877 | { |
|
|
2878 | HV *st; |
|
|
2879 | GV *gvp; |
|
|
2880 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
2881 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
2882 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
2883 | sv_setpv ((SV *)slf_cv, proto); |
|
|
2884 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
2885 | } |
|
|
2886 | |