… | |
… | |
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? */ |
|
|
156 | |
|
|
157 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
158 | #define CVf_SLF 0x4000 |
|
|
159 | static OP *pp_slf (pTHX); |
163 | |
160 | |
164 | static U32 cctx_gen; |
161 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
162 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
163 | static struct CoroAPI coroapi; |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
164 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
… | |
… | |
241 | /* this is a structure representing a perl-level coroutine */ |
238 | /* this is a structure representing a perl-level coroutine */ |
242 | struct coro { |
239 | struct coro { |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
240 | /* the C coroutine allocated to this perl coroutine, if any */ |
244 | coro_cctx *cctx; |
241 | coro_cctx *cctx; |
245 | |
242 | |
246 | /* process data */ |
243 | /* state data */ |
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
244 | struct CoroSLF slf_frame; /* saved slf frame */ |
248 | AV *mainstack; |
245 | AV *mainstack; |
249 | perl_slots *slot; /* basically the saved sp */ |
246 | perl_slots *slot; /* basically the saved sp */ |
250 | |
247 | |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
248 | AV *args; /* data associated with this coroutine (initial args) */ |
… | |
… | |
269 | }; |
266 | }; |
270 | |
267 | |
271 | typedef struct coro *Coro__State; |
268 | typedef struct coro *Coro__State; |
272 | typedef struct coro *Coro__State_or_hashref; |
269 | typedef struct coro *Coro__State_or_hashref; |
273 | |
270 | |
|
|
271 | /* the following variables are effectively part of the perl context */ |
|
|
272 | /* and get copied between struct coro and these variables */ |
|
|
273 | /* the mainr easonw e don't support windows process emulation */ |
274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
|
|
275 | static SV *coro_throw; |
275 | |
276 | |
276 | /** Coro ********************************************************************/ |
277 | /** Coro ********************************************************************/ |
277 | |
278 | |
278 | #define PRIO_MAX 3 |
279 | #define PRIO_MAX 3 |
279 | #define PRIO_HIGH 1 |
280 | #define PRIO_HIGH 1 |
… | |
… | |
380 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
381 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
381 | |
382 | |
382 | return 0; |
383 | return 0; |
383 | } |
384 | } |
384 | |
385 | |
385 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
386 | #define CORO_MAGIC_type_cv 26 |
386 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
387 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
387 | |
388 | |
388 | static MGVTBL coro_cv_vtbl = { |
389 | static MGVTBL coro_cv_vtbl = { |
389 | 0, 0, 0, 0, |
390 | 0, 0, 0, 0, |
390 | coro_cv_free |
391 | coro_cv_free |
391 | }; |
392 | }; |
392 | |
393 | |
|
|
394 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
395 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
396 | ? SvMAGIC (sv) \ |
|
|
397 | : mg_find (sv, type)) |
|
|
398 | |
393 | #define CORO_MAGIC(sv, type) \ |
399 | #define CORO_MAGIC(sv, type) \ |
394 | expect_true (SvMAGIC (sv)) \ |
400 | (expect_true (SvMAGIC (sv)) \ |
395 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
401 | ? CORO_MAGIC_NN (sv, type) \ |
396 | ? SvMAGIC (sv) \ |
|
|
397 | : mg_find (sv, type) \ |
|
|
398 | : 0 |
402 | : 0) |
399 | |
403 | |
400 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
404 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
401 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
405 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
402 | |
406 | |
403 | INLINE struct coro * |
407 | INLINE struct coro * |
404 | SvSTATE_ (pTHX_ SV *coro) |
408 | SvSTATE_ (pTHX_ SV *coro) |
405 | { |
409 | { |
406 | HV *stash; |
410 | HV *stash; |
… | |
… | |
424 | return (struct coro *)mg->mg_ptr; |
428 | return (struct coro *)mg->mg_ptr; |
425 | } |
429 | } |
426 | |
430 | |
427 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
431 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
428 | |
432 | |
429 | /* fastert than SvSTATE, but expects a coroutine hv */ |
433 | /* faster than SvSTATE, but expects a coroutine hv */ |
430 | INLINE struct coro * |
434 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
431 | SvSTATE_hv (SV *sv) |
|
|
432 | { |
|
|
433 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
434 | ? SvMAGIC (sv) |
|
|
435 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
436 | |
|
|
437 | return (struct coro *)mg->mg_ptr; |
|
|
438 | } |
|
|
439 | |
|
|
440 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
435 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
441 | |
436 | |
442 | /* the next two functions merely cache the padlists */ |
437 | /* the next two functions merely cache the padlists */ |
443 | static void |
438 | static void |
444 | get_padlist (pTHX_ CV *cv) |
439 | get_padlist (pTHX_ CV *cv) |
… | |
… | |
513 | } |
508 | } |
514 | |
509 | |
515 | PUTBACK; |
510 | PUTBACK; |
516 | } |
511 | } |
517 | |
512 | |
518 | slf_frame = c->slf_frame; |
513 | slf_frame = c->slf_frame; |
|
|
514 | coro_throw = c->throw; |
519 | } |
515 | } |
520 | |
516 | |
521 | static void |
517 | static void |
522 | save_perl (pTHX_ Coro__State c) |
518 | save_perl (pTHX_ Coro__State c) |
523 | { |
519 | { |
|
|
520 | c->throw = coro_throw; |
524 | c->slf_frame = slf_frame; |
521 | c->slf_frame = slf_frame; |
525 | |
522 | |
526 | { |
523 | { |
527 | dSP; |
524 | dSP; |
528 | I32 cxix = cxstack_ix; |
525 | I32 cxix = cxstack_ix; |
… | |
… | |
821 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
818 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
822 | { |
819 | { |
823 | return 0; |
820 | return 0; |
824 | } |
821 | } |
825 | |
822 | |
826 | static void |
823 | static UNOP coro_setup_op; |
|
|
824 | |
|
|
825 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
827 | coro_setup (pTHX_ struct coro *coro) |
826 | coro_setup (pTHX_ struct coro *coro) |
828 | { |
827 | { |
829 | /* |
828 | /* |
830 | * emulate part of the perl startup here. |
829 | * emulate part of the perl startup here. |
831 | */ |
830 | */ |
… | |
… | |
874 | /* this newly created coroutine might be run on an existing cctx which most |
873 | /* this newly created coroutine might be run on an existing cctx which most |
875 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
874 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
876 | */ |
875 | */ |
877 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
876 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
878 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
877 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
878 | |
|
|
879 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
880 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
881 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
882 | coro_setup_op.op_next = PL_op; |
|
|
883 | |
|
|
884 | PL_op = (OP *)&coro_setup_op; |
|
|
885 | |
|
|
886 | /* copy throw, in case it was set before coro_setup */ |
|
|
887 | coro_throw = coro->throw; |
879 | } |
888 | } |
880 | |
889 | |
881 | static void |
890 | static void |
882 | coro_destruct (pTHX_ struct coro *coro) |
891 | coro_destruct (pTHX_ struct coro *coro) |
883 | { |
892 | { |
… | |
… | |
907 | |
916 | |
908 | SvREFCNT_dec (PL_diehook); |
917 | SvREFCNT_dec (PL_diehook); |
909 | SvREFCNT_dec (PL_warnhook); |
918 | SvREFCNT_dec (PL_warnhook); |
910 | |
919 | |
911 | SvREFCNT_dec (coro->saved_deffh); |
920 | SvREFCNT_dec (coro->saved_deffh); |
912 | SvREFCNT_dec (coro->throw); |
921 | SvREFCNT_dec (coro_throw); |
913 | |
922 | |
914 | coro_destruct_stacks (aTHX); |
923 | coro_destruct_stacks (aTHX); |
915 | } |
924 | } |
916 | |
925 | |
917 | INLINE void |
926 | INLINE void |
… | |
… | |
1046 | |
1055 | |
1047 | TAINT_NOT; |
1056 | TAINT_NOT; |
1048 | return 0; |
1057 | return 0; |
1049 | } |
1058 | } |
1050 | |
1059 | |
|
|
1060 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1061 | static struct CoroSLF cctx_ssl_frame; |
|
|
1062 | |
1051 | static void |
1063 | static void |
1052 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1064 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1053 | { |
1065 | { |
1054 | ta->prev = (struct coro *)cctx; |
1066 | ta->prev = (struct coro *)cctx_ssl_cctx; |
1055 | ta->next = 0; |
1067 | ta->next = 0; |
1056 | } |
1068 | } |
1057 | |
1069 | |
1058 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1070 | static int |
1059 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1071 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1060 | /* during execution of a perl program */ |
1072 | { |
1061 | /* also initialises PL_top_env */ |
1073 | *frame = cctx_ssl_frame; |
|
|
1074 | |
|
|
1075 | return 1; /* execute the restored frame - there must be one */ |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | /* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */ |
1062 | static void NOINLINE |
1079 | static void NOINLINE |
1063 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1080 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1064 | { |
1081 | { |
1065 | dSP; |
|
|
1066 | UNOP myop; |
|
|
1067 | |
|
|
1068 | PL_top_env = &PL_start_env; |
1082 | PL_top_env = &PL_start_env; |
1069 | |
1083 | |
1070 | if (cctx->flags & CC_TRACE) |
1084 | if (cctx->flags & CC_TRACE) |
1071 | PL_runops = runops_trace; |
1085 | PL_runops = runops_trace; |
1072 | |
1086 | |
1073 | Zero (&myop, 1, UNOP); |
1087 | /* we already must be in an SLF call, there is no other valid way |
1074 | myop.op_next = PL_op; |
1088 | * that can lead to creation of a new cctx */ |
1075 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1089 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1090 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1076 | |
1091 | |
1077 | PUSHMARK (SP); |
1092 | cctx_ssl_cctx = cctx; |
1078 | EXTEND (SP, 2); |
1093 | cctx_ssl_frame = slf_frame; |
1079 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1094 | |
1080 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1095 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1081 | PUTBACK; |
1096 | slf_frame.check = slf_check_set_stacklevel; |
1082 | PL_op = (OP *)&myop; |
|
|
1083 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1084 | SPAGAIN; |
|
|
1085 | } |
1097 | } |
1086 | |
1098 | |
1087 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1099 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1088 | INLINE void |
1100 | INLINE void |
1089 | transfer_tail (pTHX) |
1101 | transfer_tail (pTHX) |
… | |
… | |
1276 | /** coroutine switching *****************************************************/ |
1288 | /** coroutine switching *****************************************************/ |
1277 | |
1289 | |
1278 | static void |
1290 | static void |
1279 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1291 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1280 | { |
1292 | { |
|
|
1293 | /* TODO: throwing up here is considered harmful */ |
|
|
1294 | |
1281 | if (expect_true (prev != next)) |
1295 | if (expect_true (prev != next)) |
1282 | { |
1296 | { |
1283 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1297 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1284 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1298 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1285 | |
1299 | |
… | |
… | |
1295 | #endif |
1309 | #endif |
1296 | } |
1310 | } |
1297 | } |
1311 | } |
1298 | |
1312 | |
1299 | /* always use the TRANSFER macro */ |
1313 | /* always use the TRANSFER macro */ |
1300 | static void NOINLINE |
1314 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1301 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1315 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1302 | { |
1316 | { |
1303 | dSTACKLEVEL; |
1317 | dSTACKLEVEL; |
1304 | |
1318 | |
1305 | /* sometimes transfer is only called to set idle_sp */ |
1319 | /* sometimes transfer is only called to set idle_sp */ |
… | |
… | |
1531 | ENTER; |
1545 | ENTER; |
1532 | SAVETMPS; |
1546 | SAVETMPS; |
1533 | |
1547 | |
1534 | PUSHMARK (SP); |
1548 | PUSHMARK (SP); |
1535 | PUTBACK; |
1549 | PUTBACK; |
1536 | call_sv (sv_hook, G_DISCARD); |
1550 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1537 | SPAGAIN; |
|
|
1538 | |
1551 | |
1539 | FREETMPS; |
1552 | FREETMPS; |
1540 | LEAVE; |
1553 | LEAVE; |
1541 | } |
1554 | } |
1542 | |
1555 | |
… | |
… | |
1569 | ENTER; |
1582 | ENTER; |
1570 | SAVETMPS; |
1583 | SAVETMPS; |
1571 | |
1584 | |
1572 | PUSHMARK (SP); |
1585 | PUSHMARK (SP); |
1573 | PUTBACK; |
1586 | PUTBACK; |
1574 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1587 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1575 | SPAGAIN; |
|
|
1576 | |
1588 | |
1577 | FREETMPS; |
1589 | FREETMPS; |
1578 | LEAVE; |
1590 | LEAVE; |
1579 | continue; |
1591 | continue; |
1580 | } |
1592 | } |
… | |
… | |
1687 | if (coro->flags & CF_RUNNING) |
1699 | if (coro->flags & CF_RUNNING) |
1688 | PL_runops = RUNOPS_DEFAULT; |
1700 | PL_runops = RUNOPS_DEFAULT; |
1689 | else |
1701 | else |
1690 | coro->slot->runops = RUNOPS_DEFAULT; |
1702 | coro->slot->runops = RUNOPS_DEFAULT; |
1691 | } |
1703 | } |
|
|
1704 | } |
|
|
1705 | |
|
|
1706 | /*****************************************************************************/ |
|
|
1707 | /* schedule-like-function opcode (SLF) */ |
|
|
1708 | |
|
|
1709 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1710 | static const CV *slf_cv; |
|
|
1711 | static SV **slf_argv; |
|
|
1712 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1713 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1714 | |
|
|
1715 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1716 | /* recreate the stack frame as perl will on following calls */ |
|
|
1717 | /* since entersub cleared the stack */ |
|
|
1718 | static OP * |
|
|
1719 | pp_restore (pTHX) |
|
|
1720 | { |
|
|
1721 | int i; |
|
|
1722 | SV **SP = PL_stack_base + slf_ax; |
|
|
1723 | |
|
|
1724 | PUSHMARK (SP); |
|
|
1725 | |
|
|
1726 | EXTEND (SP, slf_argc + 1); |
|
|
1727 | |
|
|
1728 | for (i = 0; i < slf_argc; ++i) |
|
|
1729 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1730 | |
|
|
1731 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1732 | |
|
|
1733 | RETURNOP (slf_restore.op_first); |
|
|
1734 | } |
|
|
1735 | |
|
|
1736 | static void |
|
|
1737 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1738 | { |
|
|
1739 | SV **arg = (SV **)slf_frame.data; |
|
|
1740 | |
|
|
1741 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1742 | } |
|
|
1743 | |
|
|
1744 | static void |
|
|
1745 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1746 | { |
|
|
1747 | if (items != 2) |
|
|
1748 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1749 | |
|
|
1750 | frame->prepare = slf_prepare_transfer; |
|
|
1751 | frame->check = slf_check_nop; |
|
|
1752 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | static void |
|
|
1756 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1757 | { |
|
|
1758 | frame->prepare = prepare_schedule; |
|
|
1759 | frame->check = slf_check_nop; |
|
|
1760 | } |
|
|
1761 | |
|
|
1762 | static void |
|
|
1763 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1764 | { |
|
|
1765 | frame->prepare = prepare_cede; |
|
|
1766 | frame->check = slf_check_nop; |
|
|
1767 | } |
|
|
1768 | |
|
|
1769 | static void |
|
|
1770 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1771 | { |
|
|
1772 | frame->prepare = prepare_cede_notself; |
|
|
1773 | frame->check = slf_check_nop; |
|
|
1774 | } |
|
|
1775 | |
|
|
1776 | /* |
|
|
1777 | * these not obviously related functions are all rolled into one |
|
|
1778 | * function to increase chances that they all will call transfer with the same |
|
|
1779 | * stack offset |
|
|
1780 | * SLF stands for "schedule-like-function". |
|
|
1781 | */ |
|
|
1782 | static OP * |
|
|
1783 | pp_slf (pTHX) |
|
|
1784 | { |
|
|
1785 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1786 | |
|
|
1787 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1788 | /* the latter happens when a new coro has been started */ |
|
|
1789 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1790 | if (expect_true (!slf_frame.prepare)) |
|
|
1791 | { |
|
|
1792 | /* first iteration */ |
|
|
1793 | dSP; |
|
|
1794 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1795 | int items = SP - arg; /* args without function object */ |
|
|
1796 | SV *gv = *sp; |
|
|
1797 | |
|
|
1798 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1799 | /* for us, divert to the real entersub */ |
|
|
1800 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1801 | || !GvCV (gv) |
|
|
1802 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1803 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1804 | |
|
|
1805 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1806 | { |
|
|
1807 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1808 | AV *av = GvAV (PL_defgv); |
|
|
1809 | arg = AvARRAY (av); |
|
|
1810 | items = AvFILLp (av) + 1; |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1814 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1815 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1816 | |
|
|
1817 | /* pop args */ |
|
|
1818 | SP = PL_stack_base + POPMARK; |
|
|
1819 | |
|
|
1820 | PUTBACK; |
|
|
1821 | } |
|
|
1822 | |
|
|
1823 | /* now that we have a slf_frame, interpret it! */ |
|
|
1824 | /* we use a callback system not to make the code needlessly */ |
|
|
1825 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1826 | |
|
|
1827 | do |
|
|
1828 | { |
|
|
1829 | struct coro_transfer_args ta; |
|
|
1830 | |
|
|
1831 | slf_frame.prepare (aTHX_ &ta); |
|
|
1832 | TRANSFER (ta, 0); |
|
|
1833 | |
|
|
1834 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1835 | } |
|
|
1836 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1837 | |
|
|
1838 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1839 | |
|
|
1840 | /* return value handling - mostly like entersub */ |
|
|
1841 | /* make sure we put something on the stack in scalar context */ |
|
|
1842 | if (GIMME_V == G_SCALAR) |
|
|
1843 | { |
|
|
1844 | dSP; |
|
|
1845 | SV **bot = PL_stack_base + checkmark; |
|
|
1846 | |
|
|
1847 | if (sp == bot) /* too few, push undef */ |
|
|
1848 | bot [1] = &PL_sv_undef; |
|
|
1849 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
1850 | bot [1] = *sp; |
|
|
1851 | |
|
|
1852 | SP = bot + 1; |
|
|
1853 | |
|
|
1854 | PUTBACK; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | /* exception handling */ |
|
|
1858 | if (expect_false (coro_throw)) |
|
|
1859 | { |
|
|
1860 | SV *exception = sv_2mortal (coro_throw); |
|
|
1861 | |
|
|
1862 | coro_throw = 0; |
|
|
1863 | sv_setsv (ERRSV, exception); |
|
|
1864 | croak (0); |
|
|
1865 | } |
|
|
1866 | |
|
|
1867 | return NORMAL; |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | static void |
|
|
1871 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1872 | { |
|
|
1873 | int i; |
|
|
1874 | SV **arg = PL_stack_base + ax; |
|
|
1875 | int items = PL_stack_sp - arg + 1; |
|
|
1876 | |
|
|
1877 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1878 | |
|
|
1879 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1880 | && PL_op->op_ppaddr != pp_slf) |
|
|
1881 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1882 | |
|
|
1883 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1884 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1885 | slf_cv = cv; |
|
|
1886 | |
|
|
1887 | /* we patch the op, and then re-run the whole call */ |
|
|
1888 | /* we have to put the same argument on the stack for this to work */ |
|
|
1889 | /* and this will be done by pp_restore */ |
|
|
1890 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1891 | slf_restore.op_type = OP_CUSTOM; |
|
|
1892 | slf_restore.op_ppaddr = pp_restore; |
|
|
1893 | slf_restore.op_first = PL_op; |
|
|
1894 | |
|
|
1895 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1896 | |
|
|
1897 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1898 | { |
|
|
1899 | if (items > slf_arga) |
|
|
1900 | { |
|
|
1901 | slf_arga = items; |
|
|
1902 | free (slf_argv); |
|
|
1903 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | slf_argc = items; |
|
|
1907 | |
|
|
1908 | for (i = 0; i < items; ++i) |
|
|
1909 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1910 | } |
|
|
1911 | else |
|
|
1912 | slf_argc = 0; |
|
|
1913 | |
|
|
1914 | PL_op->op_ppaddr = pp_slf; |
|
|
1915 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1916 | |
|
|
1917 | PL_op = (OP *)&slf_restore; |
1692 | } |
1918 | } |
1693 | |
1919 | |
1694 | /*****************************************************************************/ |
1920 | /*****************************************************************************/ |
1695 | /* PerlIO::cede */ |
1921 | /* PerlIO::cede */ |
1696 | |
1922 | |
… | |
… | |
1765 | PerlIOBuf_get_cnt, |
1991 | PerlIOBuf_get_cnt, |
1766 | PerlIOBuf_set_ptrcnt, |
1992 | PerlIOBuf_set_ptrcnt, |
1767 | }; |
1993 | }; |
1768 | |
1994 | |
1769 | /*****************************************************************************/ |
1995 | /*****************************************************************************/ |
1770 | |
1996 | /* Coro::Semaphore */ |
1771 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1772 | static const CV *slf_cv; |
|
|
1773 | static SV *slf_arg0; |
|
|
1774 | static SV *slf_arg1; |
|
|
1775 | static SV *slf_arg2; |
|
|
1776 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1777 | |
|
|
1778 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1779 | /* recreate the stack frame as perl will on following calls */ |
|
|
1780 | /* since entersub cleared the stack */ |
|
|
1781 | static OP * |
|
|
1782 | pp_restore (pTHX) |
|
|
1783 | { |
|
|
1784 | SV **SP = PL_stack_base + slf_ax; |
|
|
1785 | |
|
|
1786 | PUSHMARK (SP); |
|
|
1787 | |
|
|
1788 | EXTEND (SP, 3); |
|
|
1789 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1790 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1791 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1792 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1793 | |
|
|
1794 | RETURNOP (slf_restore.op_first); |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | static void |
|
|
1798 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1799 | { |
|
|
1800 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | static void |
|
|
1804 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1805 | { |
|
|
1806 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1807 | |
|
|
1808 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1809 | frame->check = slf_check_nop; |
|
|
1810 | frame->data = (void *)SvIV (arg [0]); |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void |
|
|
1814 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1815 | { |
|
|
1816 | SV **arg = (SV **)slf_frame.data; |
|
|
1817 | |
|
|
1818 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1819 | |
|
|
1820 | /* if the destination has ->throw set, then copy it */ |
|
|
1821 | /* into the current coro's throw slot, so it will be raised */ |
|
|
1822 | /* after the schedule */ |
|
|
1823 | if (expect_false (ta->next->throw)) |
|
|
1824 | { |
|
|
1825 | struct coro *coro = SvSTATE_current; |
|
|
1826 | SvREFCNT_dec (coro->throw); |
|
|
1827 | coro->throw = ta->next->throw; |
|
|
1828 | ta->next->throw = 0; |
|
|
1829 | } |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void |
|
|
1833 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1834 | { |
|
|
1835 | if (items != 2) |
|
|
1836 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1837 | |
|
|
1838 | frame->prepare = slf_prepare_transfer; |
|
|
1839 | frame->check = slf_check_nop; |
|
|
1840 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | static void |
|
|
1844 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1845 | { |
|
|
1846 | frame->prepare = prepare_schedule; |
|
|
1847 | frame->check = slf_check_nop; |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_cede; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede_notself; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1865 | #define CVf_SLF 0x4000 |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | * SLF stands for "schedule-like-function". |
|
|
1872 | */ |
|
|
1873 | static OP * |
|
|
1874 | pp_slf (pTHX) |
|
|
1875 | { |
|
|
1876 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1877 | |
|
|
1878 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1879 | /* the latter happens when a new coro has been started */ |
|
|
1880 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1881 | if (expect_true (!slf_frame.prepare)) |
|
|
1882 | { |
|
|
1883 | /* first iteration */ |
|
|
1884 | dSP; |
|
|
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
|
|
1888 | |
|
|
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1890 | /* for us, divert to the real entersub */ |
|
|
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1893 | |
|
|
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1895 | { |
|
|
1896 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1897 | AV *av = GvAV (PL_defgv); |
|
|
1898 | arg = AvARRAY (av); |
|
|
1899 | items = AvFILLp (av) + 1; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1903 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1904 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1905 | |
|
|
1906 | /* pop args */ |
|
|
1907 | SP = PL_stack_base + POPMARK; |
|
|
1908 | |
|
|
1909 | PUTBACK; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | /* now that we have a slf_frame, interpret it! */ |
|
|
1913 | /* we use a callback system not to make the code needlessly */ |
|
|
1914 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1915 | |
|
|
1916 | do |
|
|
1917 | { |
|
|
1918 | struct coro_transfer_args ta; |
|
|
1919 | |
|
|
1920 | slf_frame.prepare (aTHX_ &ta); |
|
|
1921 | TRANSFER (ta, 0); |
|
|
1922 | |
|
|
1923 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1924 | } |
|
|
1925 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1926 | |
|
|
1927 | { |
|
|
1928 | dSP; |
|
|
1929 | SV **bot = PL_stack_base + checkmark; |
|
|
1930 | int gimme = GIMME_V; |
|
|
1931 | |
|
|
1932 | slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */ |
|
|
1933 | |
|
|
1934 | /* make sure we put something on the stack in scalar context */ |
|
|
1935 | if (gimme == G_SCALAR) |
|
|
1936 | { |
|
|
1937 | if (sp == bot) |
|
|
1938 | XPUSHs (&PL_sv_undef); |
|
|
1939 | |
|
|
1940 | SP = bot + 1; |
|
|
1941 | } |
|
|
1942 | |
|
|
1943 | PUTBACK; |
|
|
1944 | } |
|
|
1945 | |
|
|
1946 | { |
|
|
1947 | struct coro *coro = SvSTATE_current; |
|
|
1948 | |
|
|
1949 | if (expect_false (coro->throw)) |
|
|
1950 | { |
|
|
1951 | SV *exception = sv_2mortal (coro->throw); |
|
|
1952 | |
|
|
1953 | coro->throw = 0; |
|
|
1954 | sv_setsv (ERRSV, exception); |
|
|
1955 | croak (0); |
|
|
1956 | } |
|
|
1957 | } |
|
|
1958 | |
|
|
1959 | return NORMAL; |
|
|
1960 | } |
|
|
1961 | |
|
|
1962 | static void |
|
|
1963 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1964 | { |
|
|
1965 | SV **arg = PL_stack_base + ax; |
|
|
1966 | int items = PL_stack_sp - arg + 1; |
|
|
1967 | |
|
|
1968 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1969 | |
|
|
1970 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1971 | && PL_op->op_ppaddr != pp_slf) |
|
|
1972 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1973 | |
|
|
1974 | #if 0 |
|
|
1975 | if (items > 3) |
|
|
1976 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1977 | #endif |
|
|
1978 | |
|
|
1979 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1980 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1981 | slf_cv = cv; |
|
|
1982 | |
|
|
1983 | /* we patch the op, and then re-run the whole call */ |
|
|
1984 | /* we have to put the same argument on the stack for this to work */ |
|
|
1985 | /* and this will be done by pp_restore */ |
|
|
1986 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1987 | slf_restore.op_type = OP_CUSTOM; |
|
|
1988 | slf_restore.op_ppaddr = pp_restore; |
|
|
1989 | slf_restore.op_first = PL_op; |
|
|
1990 | |
|
|
1991 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1992 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1993 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1994 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1995 | |
|
|
1996 | PL_op->op_ppaddr = pp_slf; |
|
|
1997 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1998 | |
|
|
1999 | PL_op = (OP *)&slf_restore; |
|
|
2000 | } |
|
|
2001 | |
|
|
2002 | /*****************************************************************************/ |
|
|
2003 | |
1997 | |
2004 | static void |
1998 | static void |
2005 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
1999 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2006 | { |
2000 | { |
2007 | SV *count_sv = AvARRAY (av)[0]; |
2001 | SV *count_sv = AvARRAY (av)[0]; |
… | |
… | |
2093 | frame->check = slf_check_semaphore_down; |
2087 | frame->check = slf_check_semaphore_down; |
2094 | |
2088 | |
2095 | } |
2089 | } |
2096 | |
2090 | |
2097 | /*****************************************************************************/ |
2091 | /*****************************************************************************/ |
|
|
2092 | /* gensub: simple closure generation utility */ |
2098 | |
2093 | |
2099 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2094 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2100 | |
2095 | |
2101 | /* create a closure from XS, returns a code reference */ |
2096 | /* create a closure from XS, returns a code reference */ |
2102 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2097 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2103 | /* the callback must use dXSARGS/XSRETURN */ |
2098 | /* the callback must use dXSARGS/XSRETURN */ |
2104 | static SV * |
2099 | static SV * |
2105 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
2100 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
2106 | { |
2101 | { |
2107 | CV *cv = (CV *)NEWSV (0, 0); |
2102 | CV *cv = (CV *)newSV (0); |
2108 | |
2103 | |
2109 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2104 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2110 | |
2105 | |
2111 | CvANON_on (cv); |
2106 | CvANON_on (cv); |
2112 | CvISXSUB_on (cv); |
2107 | CvISXSUB_on (cv); |
2113 | CvXSUB (cv) = xsub; |
2108 | CvXSUB (cv) = xsub; |
2114 | GENSUB_ARG = arg; |
2109 | GENSUB_ARG = arg; |
2115 | |
2110 | |
2116 | return newRV_noinc ((SV *)cv); |
2111 | return newRV_noinc ((SV *)cv); |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | /*****************************************************************************/ |
|
|
2115 | /* Coro::AIO */ |
|
|
2116 | |
|
|
2117 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2118 | |
|
|
2119 | /* helper storage struct */ |
|
|
2120 | struct io_state |
|
|
2121 | { |
|
|
2122 | int errorno; |
|
|
2123 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2124 | int laststatval; |
|
|
2125 | Stat_t statcache; |
|
|
2126 | }; |
|
|
2127 | |
|
|
2128 | static void |
|
|
2129 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2130 | { |
|
|
2131 | dXSARGS; |
|
|
2132 | AV *state = (AV *)GENSUB_ARG; |
|
|
2133 | SV *coro = av_pop (state); |
|
|
2134 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2135 | |
|
|
2136 | av_extend (state, items); |
|
|
2137 | |
|
|
2138 | sv_upgrade (data_sv, SVt_PV); |
|
|
2139 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2140 | SvPOK_only (data_sv); |
|
|
2141 | |
|
|
2142 | { |
|
|
2143 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2144 | |
|
|
2145 | data->errorno = errno; |
|
|
2146 | data->laststype = PL_laststype; |
|
|
2147 | data->laststatval = PL_laststatval; |
|
|
2148 | data->statcache = PL_statcache; |
|
|
2149 | } |
|
|
2150 | |
|
|
2151 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2152 | { |
|
|
2153 | int i; |
|
|
2154 | |
|
|
2155 | for (i = 0; i < items; ++i) |
|
|
2156 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2157 | } |
|
|
2158 | |
|
|
2159 | av_push (state, data_sv); |
|
|
2160 | |
|
|
2161 | api_ready (aTHX_ coro); |
|
|
2162 | SvREFCNT_dec (coro); |
|
|
2163 | SvREFCNT_dec ((AV *)state); |
|
|
2164 | } |
|
|
2165 | |
|
|
2166 | static int |
|
|
2167 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2168 | { |
|
|
2169 | AV *state = (AV *)frame->data; |
|
|
2170 | |
|
|
2171 | /* one element that is an RV? repeat! */ |
|
|
2172 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2173 | return 1; |
|
|
2174 | |
|
|
2175 | /* restore status */ |
|
|
2176 | { |
|
|
2177 | SV *data_sv = av_pop (state); |
|
|
2178 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2179 | |
|
|
2180 | errno = data->errorno; |
|
|
2181 | PL_laststype = data->laststype; |
|
|
2182 | PL_laststatval = data->laststatval; |
|
|
2183 | PL_statcache = data->statcache; |
|
|
2184 | |
|
|
2185 | SvREFCNT_dec (data_sv); |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | /* push result values */ |
|
|
2189 | { |
|
|
2190 | dSP; |
|
|
2191 | int i; |
|
|
2192 | |
|
|
2193 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2194 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2195 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2196 | |
|
|
2197 | PUTBACK; |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | return 0; |
|
|
2201 | } |
|
|
2202 | |
|
|
2203 | static void |
|
|
2204 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2205 | { |
|
|
2206 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2207 | SV *coro_hv = SvRV (coro_current); |
|
|
2208 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2209 | |
|
|
2210 | /* put our coroutine id on the state arg */ |
|
|
2211 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2212 | |
|
|
2213 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2214 | if (coro->prio) |
|
|
2215 | { |
|
|
2216 | dSP; |
|
|
2217 | |
|
|
2218 | static SV *prio_cv; |
|
|
2219 | static SV *prio_sv; |
|
|
2220 | |
|
|
2221 | if (expect_false (!prio_cv)) |
|
|
2222 | { |
|
|
2223 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2224 | prio_sv = newSViv (0); |
|
|
2225 | } |
|
|
2226 | |
|
|
2227 | PUSHMARK (SP); |
|
|
2228 | sv_setiv (prio_sv, coro->prio); |
|
|
2229 | XPUSHs (prio_sv); |
|
|
2230 | |
|
|
2231 | PUTBACK; |
|
|
2232 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2233 | } |
|
|
2234 | |
|
|
2235 | /* now call the original request */ |
|
|
2236 | { |
|
|
2237 | dSP; |
|
|
2238 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2239 | int i; |
|
|
2240 | |
|
|
2241 | PUSHMARK (SP); |
|
|
2242 | |
|
|
2243 | /* first push all args to the stack */ |
|
|
2244 | EXTEND (SP, items + 1); |
|
|
2245 | |
|
|
2246 | for (i = 0; i < items; ++i) |
|
|
2247 | PUSHs (arg [i]); |
|
|
2248 | |
|
|
2249 | /* now push the callback closure */ |
|
|
2250 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2251 | |
|
|
2252 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2253 | PUTBACK; |
|
|
2254 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2255 | } |
|
|
2256 | |
|
|
2257 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2258 | frame->data = (void *)state; |
|
|
2259 | frame->prepare = prepare_schedule; |
|
|
2260 | frame->check = slf_check_aio_req; |
|
|
2261 | } |
|
|
2262 | |
|
|
2263 | static void |
|
|
2264 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2265 | { |
|
|
2266 | dXSARGS; |
|
|
2267 | |
|
|
2268 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2269 | |
|
|
2270 | XSRETURN_EMPTY; |
2117 | } |
2271 | } |
2118 | |
2272 | |
2119 | /*****************************************************************************/ |
2273 | /*****************************************************************************/ |
2120 | |
2274 | |
2121 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2275 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
… | |
… | |
2217 | for (i = 1; i < items; i++) |
2371 | for (i = 1; i < items; i++) |
2218 | av_push (coro->args, newSVsv (ST (i))); |
2372 | av_push (coro->args, newSVsv (ST (i))); |
2219 | } |
2373 | } |
2220 | OUTPUT: |
2374 | OUTPUT: |
2221 | RETVAL |
2375 | RETVAL |
2222 | |
|
|
2223 | void |
|
|
2224 | _set_stacklevel (...) |
|
|
2225 | CODE: |
|
|
2226 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
|
|
2227 | |
2376 | |
2228 | void |
2377 | void |
2229 | transfer (...) |
2378 | transfer (...) |
2230 | PROTOTYPE: $$ |
2379 | PROTOTYPE: $$ |
2231 | CODE: |
2380 | CODE: |
… | |
… | |
2355 | |
2504 | |
2356 | void |
2505 | void |
2357 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2506 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2358 | PROTOTYPE: $;$ |
2507 | PROTOTYPE: $;$ |
2359 | CODE: |
2508 | CODE: |
|
|
2509 | { |
|
|
2510 | struct coro *current = SvSTATE_current; |
|
|
2511 | SV **throwp = self == current ? &coro_throw : &self->throw; |
2360 | SvREFCNT_dec (self->throw); |
2512 | SvREFCNT_dec (*throwp); |
2361 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2513 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2514 | } |
2362 | |
2515 | |
2363 | void |
2516 | void |
2364 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2517 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2365 | PROTOTYPE: $;$ |
2518 | PROTOTYPE: $;$ |
2366 | C_ARGS: aTHX_ coro, flags |
2519 | C_ARGS: aTHX_ coro, flags |
… | |
… | |
2415 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2568 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2416 | |
2569 | |
2417 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2570 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2418 | } |
2571 | } |
2419 | |
2572 | |
|
|
2573 | |
2420 | MODULE = Coro::State PACKAGE = Coro |
2574 | MODULE = Coro::State PACKAGE = Coro |
2421 | |
2575 | |
2422 | BOOT: |
2576 | BOOT: |
2423 | { |
2577 | { |
2424 | int i; |
2578 | int i; |
… | |
… | |
2568 | |
2722 | |
2569 | void |
2723 | void |
2570 | _pool_2 (SV *cb) |
2724 | _pool_2 (SV *cb) |
2571 | CODE: |
2725 | CODE: |
2572 | { |
2726 | { |
2573 | struct coro *coro = SvSTATE_current; |
2727 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2728 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2574 | |
2729 | |
2575 | sv_setsv (cb, &PL_sv_undef); |
2730 | sv_setsv (cb, &PL_sv_undef); |
2576 | |
2731 | |
2577 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2732 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2578 | coro->saved_deffh = 0; |
2733 | coro->saved_deffh = 0; |
… | |
… | |
2585 | SvREFCNT_dec (old); |
2740 | SvREFCNT_dec (old); |
2586 | croak ("\3async_pool terminate\2\n"); |
2741 | croak ("\3async_pool terminate\2\n"); |
2587 | } |
2742 | } |
2588 | |
2743 | |
2589 | av_clear (GvAV (PL_defgv)); |
2744 | av_clear (GvAV (PL_defgv)); |
2590 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2745 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2591 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2746 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2592 | |
2747 | |
2593 | coro->prio = 0; |
2748 | coro->prio = 0; |
2594 | |
2749 | |
2595 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2750 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
… | |
… | |
2597 | |
2752 | |
2598 | av_push (av_async_pool, newSVsv (coro_current)); |
2753 | av_push (av_async_pool, newSVsv (coro_current)); |
2599 | } |
2754 | } |
2600 | |
2755 | |
2601 | |
2756 | |
2602 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2603 | |
|
|
2604 | void |
|
|
2605 | _get_state (SV *self) |
|
|
2606 | PROTOTYPE: $ |
|
|
2607 | PPCODE: |
|
|
2608 | { |
|
|
2609 | AV *defav = GvAV (PL_defgv); |
|
|
2610 | AV *av = newAV (); |
|
|
2611 | int i; |
|
|
2612 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2613 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2614 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2615 | SvPOK_only (data_sv); |
|
|
2616 | |
|
|
2617 | data->errorno = errno; |
|
|
2618 | data->laststype = PL_laststype; |
|
|
2619 | data->laststatval = PL_laststatval; |
|
|
2620 | data->statcache = PL_statcache; |
|
|
2621 | |
|
|
2622 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2623 | |
|
|
2624 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2625 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2626 | |
|
|
2627 | av_push (av, data_sv); |
|
|
2628 | |
|
|
2629 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2630 | |
|
|
2631 | api_ready (aTHX_ self); |
|
|
2632 | } |
|
|
2633 | |
|
|
2634 | void |
|
|
2635 | _set_state (SV *state) |
|
|
2636 | PROTOTYPE: $ |
|
|
2637 | PPCODE: |
|
|
2638 | { |
|
|
2639 | AV *av = (AV *)SvRV (state); |
|
|
2640 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2641 | int i; |
|
|
2642 | |
|
|
2643 | errno = data->errorno; |
|
|
2644 | PL_laststype = data->laststype; |
|
|
2645 | PL_laststatval = data->laststatval; |
|
|
2646 | PL_statcache = data->statcache; |
|
|
2647 | |
|
|
2648 | EXTEND (SP, AvFILLp (av)); |
|
|
2649 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2650 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2651 | } |
|
|
2652 | |
|
|
2653 | |
|
|
2654 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2655 | |
|
|
2656 | BOOT: |
|
|
2657 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2658 | |
|
|
2659 | void |
|
|
2660 | _schedule (...) |
|
|
2661 | CODE: |
|
|
2662 | { |
|
|
2663 | static int incede; |
|
|
2664 | |
|
|
2665 | api_cede_notself (aTHX); |
|
|
2666 | |
|
|
2667 | ++incede; |
|
|
2668 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2669 | ; |
|
|
2670 | |
|
|
2671 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2672 | if (coro_nready >= incede) |
|
|
2673 | { |
|
|
2674 | PUSHMARK (SP); |
|
|
2675 | PUTBACK; |
|
|
2676 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2677 | SPAGAIN; |
|
|
2678 | } |
|
|
2679 | |
|
|
2680 | --incede; |
|
|
2681 | } |
|
|
2682 | |
|
|
2683 | |
|
|
2684 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2757 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2685 | |
2758 | |
2686 | BOOT: |
2759 | BOOT: |
2687 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2760 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2761 | |
2688 | |
2762 | |
2689 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2763 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2690 | |
2764 | |
2691 | SV * |
2765 | SV * |
2692 | new (SV *klass, SV *count_ = 0) |
2766 | new (SV *klass, SV *count_ = 0) |
2693 | CODE: |
2767 | CODE: |
2694 | { |
2768 | { |
2695 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
2769 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
2696 | AV *av = newAV (); |
2770 | AV *av = newAV (); |
|
|
2771 | SV **ary; |
|
|
2772 | |
|
|
2773 | /* unfortunately, building manually saves memory */ |
|
|
2774 | Newx (ary, 2, SV *); |
|
|
2775 | AvALLOC (av) = ary; |
|
|
2776 | AvARRAY (av) = ary; |
|
|
2777 | AvMAX (av) = 1; |
|
|
2778 | AvFILLp (av) = 0; |
2697 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
2779 | ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1); |
|
|
2780 | |
2698 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
2781 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
2699 | } |
2782 | } |
2700 | OUTPUT: |
2783 | OUTPUT: |
2701 | RETVAL |
2784 | RETVAL |
2702 | |
2785 | |
… | |
… | |
2748 | else |
2831 | else |
2749 | { |
2832 | { |
2750 | int i; |
2833 | int i; |
2751 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
2834 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
2752 | for (i = 1; i <= AvFILLp (av); ++i) |
2835 | for (i = 1; i <= AvFILLp (av); ++i) |
2753 | PUSHs (newSVsv (AvARRAY (av)[i])); |
2836 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
2754 | } |
2837 | } |
2755 | } |
2838 | } |
2756 | |
2839 | |
|
|
2840 | |
|
|
2841 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2842 | |
|
|
2843 | BOOT: |
|
|
2844 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2845 | |
|
|
2846 | void |
|
|
2847 | _schedule (...) |
|
|
2848 | CODE: |
|
|
2849 | { |
|
|
2850 | static int incede; |
|
|
2851 | |
|
|
2852 | api_cede_notself (aTHX); |
|
|
2853 | |
|
|
2854 | ++incede; |
|
|
2855 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2856 | ; |
|
|
2857 | |
|
|
2858 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2859 | if (coro_nready >= incede) |
|
|
2860 | { |
|
|
2861 | PUSHMARK (SP); |
|
|
2862 | PUTBACK; |
|
|
2863 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2864 | } |
|
|
2865 | |
|
|
2866 | --incede; |
|
|
2867 | } |
|
|
2868 | |
|
|
2869 | |
|
|
2870 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2871 | |
|
|
2872 | void |
|
|
2873 | _register (char *target, char *proto, SV *req) |
|
|
2874 | CODE: |
|
|
2875 | { |
|
|
2876 | HV *st; |
|
|
2877 | GV *gvp; |
|
|
2878 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
2879 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
2880 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
2881 | sv_setpv ((SV *)slf_cv, proto); |
|
|
2882 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
2883 | } |
|
|
2884 | |