… | |
… | |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
117 | #endif |
117 | #endif |
118 | |
118 | |
119 | /* The next macros try to return the current stack pointer, in an as |
119 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
120 | * portable way as possible. */ |
121 | #define dSTACKLEVEL volatile char stacklevel |
121 | #if __GNUC__ >= 4 |
122 | #define STACKLEVEL ((void *)&stacklevel) |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
|
|
123 | #else |
|
|
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
|
|
125 | #endif |
123 | |
126 | |
124 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
125 | |
128 | |
126 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
127 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
… | |
… | |
180 | static JMPENV *main_top_env; |
183 | static JMPENV *main_top_env; |
181 | static HV *coro_state_stash, *coro_stash; |
184 | static HV *coro_state_stash, *coro_stash; |
182 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
183 | static volatile struct coro *transfer_next; |
186 | static volatile struct coro *transfer_next; |
184 | |
187 | |
185 | struct transfer_args |
|
|
186 | { |
|
|
187 | struct coro *prev, *next; |
|
|
188 | }; |
|
|
189 | |
|
|
190 | static GV *irsgv; /* $/ */ |
188 | static GV *irsgv; /* $/ */ |
191 | static GV *stdoutgv; /* *STDOUT */ |
189 | static GV *stdoutgv; /* *STDOUT */ |
192 | static SV *rv_diehook; |
190 | static SV *rv_diehook; |
193 | static SV *rv_warnhook; |
191 | static SV *rv_warnhook; |
194 | static HV *hv_sig; /* %SIG */ |
192 | static HV *hv_sig; /* %SIG */ |
… | |
… | |
212 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
210 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
213 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
211 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
214 | }; |
212 | }; |
215 | |
213 | |
216 | /* this is a structure representing a c-level coroutine */ |
214 | /* this is a structure representing a c-level coroutine */ |
217 | typedef struct coro_cctx { |
215 | typedef struct coro_cctx |
|
|
216 | { |
218 | struct coro_cctx *next; |
217 | struct coro_cctx *next; |
219 | |
218 | |
220 | /* the stack */ |
219 | /* the stack */ |
221 | void *sptr; |
220 | void *sptr; |
222 | size_t ssize; |
221 | size_t ssize; |
… | |
… | |
240 | CF_NEW = 0x0004, /* has never been switched to */ |
239 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
240 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
242 | }; |
241 | }; |
243 | |
242 | |
244 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
243 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
245 | typedef struct { |
244 | typedef struct |
|
|
245 | { |
246 | SV *defsv; |
246 | SV *defsv; |
247 | AV *defav; |
247 | AV *defav; |
248 | SV *errsv; |
248 | SV *errsv; |
249 | SV *irsgv; |
249 | SV *irsgv; |
250 | #define VAR(name,type) type name; |
250 | #define VAR(name,type) type name; |
… | |
… | |
254 | |
254 | |
255 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
255 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
256 | |
256 | |
257 | /* this is a structure representing a perl-level coroutine */ |
257 | /* this is a structure representing a perl-level coroutine */ |
258 | struct coro { |
258 | struct coro { |
259 | /* the c coroutine allocated to this perl coroutine, if any */ |
259 | /* the C coroutine allocated to this perl coroutine, if any */ |
260 | coro_cctx *cctx; |
260 | coro_cctx *cctx; |
261 | |
261 | |
262 | /* process data */ |
262 | /* process data */ |
|
|
263 | struct CoroSLF slf_frame; /* saved slf frame */ |
263 | AV *mainstack; |
264 | AV *mainstack; |
264 | perl_slots *slot; /* basically the saved sp */ |
265 | perl_slots *slot; /* basically the saved sp */ |
265 | |
266 | |
266 | AV *args; /* data associated with this coroutine (initial args) */ |
267 | AV *args; /* data associated with this coroutine (initial args) */ |
267 | int refcnt; /* coroutines are refcounted, yes */ |
268 | int refcnt; /* coroutines are refcounted, yes */ |
… | |
… | |
282 | struct coro *next, *prev; |
283 | struct coro *next, *prev; |
283 | }; |
284 | }; |
284 | |
285 | |
285 | typedef struct coro *Coro__State; |
286 | typedef struct coro *Coro__State; |
286 | typedef struct coro *Coro__State_or_hashref; |
287 | typedef struct coro *Coro__State_or_hashref; |
|
|
288 | |
|
|
289 | static struct CoroSLF slf_frame; /* the current slf frame */ |
287 | |
290 | |
288 | /** Coro ********************************************************************/ |
291 | /** Coro ********************************************************************/ |
289 | |
292 | |
290 | #define PRIO_MAX 3 |
293 | #define PRIO_MAX 3 |
291 | #define PRIO_HIGH 1 |
294 | #define PRIO_HIGH 1 |
… | |
… | |
296 | |
299 | |
297 | /* for Coro.pm */ |
300 | /* for Coro.pm */ |
298 | static SV *coro_current; |
301 | static SV *coro_current; |
299 | static SV *coro_readyhook; |
302 | static SV *coro_readyhook; |
300 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
303 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
301 | static int coro_nready; |
|
|
302 | static struct coro *coro_first; |
304 | static struct coro *coro_first; |
|
|
305 | #define coro_nready coroapi.nready |
303 | |
306 | |
304 | /** lowlevel stuff **********************************************************/ |
307 | /** lowlevel stuff **********************************************************/ |
305 | |
308 | |
306 | static SV * |
309 | static SV * |
307 | coro_get_sv (pTHX_ const char *name, int create) |
310 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
511 | CvPADLIST (cv) = (AV *)POPs; |
514 | CvPADLIST (cv) = (AV *)POPs; |
512 | } |
515 | } |
513 | |
516 | |
514 | PUTBACK; |
517 | PUTBACK; |
515 | } |
518 | } |
|
|
519 | |
|
|
520 | slf_frame = c->slf_frame; |
516 | } |
521 | } |
517 | |
522 | |
518 | static void |
523 | static void |
519 | save_perl (pTHX_ Coro__State c) |
524 | save_perl (pTHX_ Coro__State c) |
520 | { |
525 | { |
|
|
526 | c->slf_frame = slf_frame; |
|
|
527 | |
521 | { |
528 | { |
522 | dSP; |
529 | dSP; |
523 | I32 cxix = cxstack_ix; |
530 | I32 cxix = cxstack_ix; |
524 | PERL_CONTEXT *ccstk = cxstack; |
531 | PERL_CONTEXT *ccstk = cxstack; |
525 | PERL_SI *top_si = PL_curstackinfo; |
532 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
592 | #undef VAR |
599 | #undef VAR |
593 | } |
600 | } |
594 | } |
601 | } |
595 | |
602 | |
596 | /* |
603 | /* |
597 | * allocate various perl stacks. This is an exact copy |
604 | * allocate various perl stacks. This is almost an exact copy |
598 | * of perl.c:init_stacks, except that it uses less memory |
605 | * of perl.c:init_stacks, except that it uses less memory |
599 | * on the (sometimes correct) assumption that coroutines do |
606 | * on the (sometimes correct) assumption that coroutines do |
600 | * not usually need a lot of stackspace. |
607 | * not usually need a lot of stackspace. |
601 | */ |
608 | */ |
602 | #if CORO_PREFER_PERL_FUNCTIONS |
609 | #if CORO_PREFER_PERL_FUNCTIONS |
… | |
… | |
709 | #endif |
716 | #endif |
710 | } |
717 | } |
711 | } |
718 | } |
712 | |
719 | |
713 | return rss; |
720 | return rss; |
714 | } |
|
|
715 | |
|
|
716 | /** set stacklevel support **************************************************/ |
|
|
717 | |
|
|
718 | /* we sometimes need to create the effect of pp_set_stacklevel calling us */ |
|
|
719 | #define SSL_HEAD (void)0 |
|
|
720 | /* we somtimes need to create the effect of leaving via pp_set_stacklevel */ |
|
|
721 | #define SSL_TAIL set_stacklevel_tail (aTHX) |
|
|
722 | |
|
|
723 | INLINE void |
|
|
724 | set_stacklevel_tail (pTHX) |
|
|
725 | { |
|
|
726 | dSP; |
|
|
727 | SV **bot = SP; |
|
|
728 | |
|
|
729 | int gimme = GIMME_V; |
|
|
730 | |
|
|
731 | /* make sure we put something on the stack in scalar context */ |
|
|
732 | if (gimme == G_SCALAR) |
|
|
733 | { |
|
|
734 | if (sp == bot) |
|
|
735 | XPUSHs (&PL_sv_undef); |
|
|
736 | |
|
|
737 | SP = bot + 1; |
|
|
738 | } |
|
|
739 | |
|
|
740 | PUTBACK; |
|
|
741 | } |
721 | } |
742 | |
722 | |
743 | /** coroutine stack handling ************************************************/ |
723 | /** coroutine stack handling ************************************************/ |
744 | |
724 | |
745 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
725 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
… | |
… | |
831 | |
811 | |
832 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
812 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
833 | } |
813 | } |
834 | |
814 | |
835 | static void |
815 | static void |
|
|
816 | prepare_nop (aTHX_ struct coro_transfer_args *ta) |
|
|
817 | { |
|
|
818 | /* kind of mega-hacky, but works */ |
|
|
819 | ta->next = ta->prev = (struct coro *)ta; |
|
|
820 | } |
|
|
821 | |
|
|
822 | static int |
|
|
823 | slf_check_nop (aTHX) |
|
|
824 | { |
|
|
825 | return 0; |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
836 | coro_setup (pTHX_ struct coro *coro) |
829 | coro_setup (pTHX_ struct coro *coro) |
837 | { |
830 | { |
838 | /* |
831 | /* |
839 | * emulate part of the perl startup here. |
832 | * emulate part of the perl startup here. |
840 | */ |
833 | */ |
… | |
… | |
879 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
872 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
880 | SPAGAIN; |
873 | SPAGAIN; |
881 | } |
874 | } |
882 | |
875 | |
883 | /* this newly created coroutine might be run on an existing cctx which most |
876 | /* this newly created coroutine might be run on an existing cctx which most |
884 | * likely was suspended in set_stacklevel, called from pp_set_stacklevel, |
877 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
885 | * so we have to emulate entering pp_set_stacklevel here. |
|
|
886 | */ |
878 | */ |
887 | SSL_HEAD; |
879 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
880 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
888 | } |
881 | } |
889 | |
882 | |
890 | static void |
883 | static void |
891 | coro_destruct (pTHX_ struct coro *coro) |
884 | coro_destruct (pTHX_ struct coro *coro) |
892 | { |
885 | { |
… | |
… | |
1056 | TAINT_NOT; |
1049 | TAINT_NOT; |
1057 | return 0; |
1050 | return 0; |
1058 | } |
1051 | } |
1059 | |
1052 | |
1060 | static void |
1053 | static void |
1061 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1054 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1062 | { |
1055 | { |
1063 | ta->prev = (struct coro *)cctx; |
1056 | ta->prev = (struct coro *)cctx; |
1064 | ta->next = 0; |
1057 | ta->next = 0; |
1065 | } |
1058 | } |
1066 | |
1059 | |
… | |
… | |
1126 | # endif |
1119 | # endif |
1127 | #endif |
1120 | #endif |
1128 | { |
1121 | { |
1129 | dTHX; |
1122 | dTHX; |
1130 | |
1123 | |
1131 | /* we are the alternative tail to pp_set_stacklevel */ |
1124 | /* normally we would need to skip the entersub here */ |
1132 | /* so do the same things here */ |
1125 | /* not doing so will re-execute it, which is exactly what we want */ |
1133 | SSL_TAIL; |
|
|
1134 | |
|
|
1135 | /* we now skip the op that did lead to transfer() */ |
|
|
1136 | PL_op = PL_op->op_next; |
1126 | /* PL_nop = PL_nop->op_next */ |
1137 | |
1127 | |
1138 | /* inject a fake subroutine call to cctx_init */ |
1128 | /* inject a fake subroutine call to cctx_init */ |
1139 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1129 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1140 | |
1130 | |
1141 | /* cctx_run is the alternative tail of transfer() */ |
1131 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1132 | /* TODO: throwing an exception here might be deadly, VERIFY */ |
1142 | transfer_tail (aTHX); |
1133 | transfer_tail (aTHX); |
1143 | |
1134 | |
1144 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1135 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1145 | PL_restartop = PL_op; |
1136 | PL_restartop = PL_op; |
1146 | perl_run (PL_curinterp); |
1137 | perl_run (PL_curinterp); |
… | |
… | |
1305 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1296 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1306 | { |
1297 | { |
1307 | if (expect_true (prev != next)) |
1298 | if (expect_true (prev != next)) |
1308 | { |
1299 | { |
1309 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1300 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1310 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1301 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1311 | |
1302 | |
1312 | if (expect_false (next->flags & CF_RUNNING)) |
1303 | if (expect_false (next->flags & CF_RUNNING)) |
1313 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1304 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1314 | |
1305 | |
1315 | if (expect_false (next->flags & CF_DESTROYED)) |
1306 | if (expect_false (next->flags & CF_DESTROYED)) |
1316 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1307 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1317 | |
1308 | |
1318 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1309 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1319 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1310 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1320 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1311 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1321 | #endif |
1312 | #endif |
1322 | } |
1313 | } |
1323 | } |
1314 | } |
1324 | |
1315 | |
1325 | /* always use the TRANSFER macro */ |
1316 | /* always use the TRANSFER macro */ |
… | |
… | |
1329 | dSTACKLEVEL; |
1320 | dSTACKLEVEL; |
1330 | |
1321 | |
1331 | /* sometimes transfer is only called to set idle_sp */ |
1322 | /* sometimes transfer is only called to set idle_sp */ |
1332 | if (expect_false (!next)) |
1323 | if (expect_false (!next)) |
1333 | { |
1324 | { |
1334 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1325 | ((coro_cctx *)prev)->idle_sp = stacklevel; |
1335 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1326 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1336 | } |
1327 | } |
1337 | else if (expect_true (prev != next)) |
1328 | else if (expect_true (prev != next)) |
1338 | { |
1329 | { |
1339 | coro_cctx *prev__cctx; |
1330 | coro_cctx *prev__cctx; |
… | |
… | |
1366 | |
1357 | |
1367 | prev__cctx = prev->cctx; |
1358 | prev__cctx = prev->cctx; |
1368 | |
1359 | |
1369 | /* possibly untie and reuse the cctx */ |
1360 | /* possibly untie and reuse the cctx */ |
1370 | if (expect_true ( |
1361 | if (expect_true ( |
1371 | prev__cctx->idle_sp == STACKLEVEL |
1362 | prev__cctx->idle_sp == stacklevel |
1372 | && !(prev__cctx->flags & CC_TRACE) |
1363 | && !(prev__cctx->flags & CC_TRACE) |
1373 | && !force_cctx |
1364 | && !force_cctx |
1374 | )) |
1365 | )) |
1375 | { |
1366 | { |
1376 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1367 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1377 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1368 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1378 | |
1369 | |
1379 | prev->cctx = 0; |
1370 | prev->cctx = 0; |
1380 | |
1371 | |
1381 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1372 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
… | |
… | |
1432 | |
1423 | |
1433 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1424 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1434 | { |
1425 | { |
1435 | struct coro temp; |
1426 | struct coro temp; |
1436 | |
1427 | |
1437 | if (coro->flags & CF_RUNNING) |
1428 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1438 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1439 | |
1429 | |
1440 | save_perl (aTHX_ &temp); |
1430 | save_perl (aTHX_ &temp); |
1441 | load_perl (aTHX_ coro); |
1431 | load_perl (aTHX_ coro); |
1442 | |
1432 | |
1443 | coro_destruct (aTHX_ coro); |
1433 | coro_destruct (aTHX_ coro); |
… | |
… | |
1494 | # define MGf_DUP 0 |
1484 | # define MGf_DUP 0 |
1495 | #endif |
1485 | #endif |
1496 | }; |
1486 | }; |
1497 | |
1487 | |
1498 | static void |
1488 | static void |
1499 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1489 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1500 | { |
1490 | { |
1501 | ta->prev = SvSTATE (prev_sv); |
1491 | ta->prev = SvSTATE (prev_sv); |
1502 | ta->next = SvSTATE (next_sv); |
1492 | ta->next = SvSTATE (next_sv); |
1503 | TRANSFER_CHECK (*ta); |
1493 | TRANSFER_CHECK (*ta); |
1504 | } |
1494 | } |
1505 | |
1495 | |
1506 | static void |
1496 | static void |
1507 | api_transfer (SV *prev_sv, SV *next_sv) |
1497 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1508 | { |
1498 | { |
1509 | dTHX; |
|
|
1510 | struct transfer_args ta; |
1499 | struct coro_transfer_args ta; |
1511 | |
1500 | |
1512 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1501 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1513 | TRANSFER (ta, 1); |
1502 | TRANSFER (ta, 1); |
1514 | } |
1503 | } |
1515 | |
1504 | |
… | |
… | |
1532 | |
1521 | |
1533 | return 0; |
1522 | return 0; |
1534 | } |
1523 | } |
1535 | |
1524 | |
1536 | static int |
1525 | static int |
1537 | api_ready (SV *coro_sv) |
1526 | api_ready (pTHX_ SV *coro_sv) |
1538 | { |
1527 | { |
1539 | dTHX; |
|
|
1540 | struct coro *coro; |
1528 | struct coro *coro; |
1541 | SV *sv_hook; |
1529 | SV *sv_hook; |
1542 | void (*xs_hook)(void); |
1530 | void (*xs_hook)(void); |
1543 | |
1531 | |
1544 | if (SvROK (coro_sv)) |
1532 | if (SvROK (coro_sv)) |
… | |
… | |
1582 | |
1570 | |
1583 | return 1; |
1571 | return 1; |
1584 | } |
1572 | } |
1585 | |
1573 | |
1586 | static int |
1574 | static int |
1587 | api_is_ready (SV *coro_sv) |
1575 | api_is_ready (pTHX_ SV *coro_sv) |
1588 | { |
1576 | { |
1589 | dTHX; |
|
|
1590 | |
|
|
1591 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1577 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1592 | } |
1578 | } |
1593 | |
1579 | |
1594 | INLINE void |
1580 | INLINE void |
1595 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1581 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1596 | { |
1582 | { |
1597 | SV *prev_sv, *next_sv; |
1583 | SV *prev_sv, *next_sv; |
1598 | |
1584 | |
1599 | for (;;) |
1585 | for (;;) |
1600 | { |
1586 | { |
… | |
… | |
1649 | coro_mortal = prev_sv; |
1635 | coro_mortal = prev_sv; |
1650 | UNLOCK; |
1636 | UNLOCK; |
1651 | } |
1637 | } |
1652 | |
1638 | |
1653 | INLINE void |
1639 | INLINE void |
1654 | prepare_cede (pTHX_ struct transfer_args *ta) |
1640 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1655 | { |
1641 | { |
1656 | api_ready (coro_current); |
1642 | api_ready (aTHX_ coro_current); |
1657 | prepare_schedule (aTHX_ ta); |
1643 | prepare_schedule (aTHX_ ta); |
1658 | } |
1644 | } |
1659 | |
1645 | |
|
|
1646 | INLINE void |
|
|
1647 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1648 | { |
|
|
1649 | SV *prev = SvRV (coro_current); |
|
|
1650 | |
|
|
1651 | if (coro_nready) |
|
|
1652 | { |
|
|
1653 | prepare_schedule (aTHX_ ta); |
|
|
1654 | api_ready (aTHX_ prev); |
|
|
1655 | } |
|
|
1656 | else |
|
|
1657 | prepare_nop (aTHX_ ta); |
|
|
1658 | } |
|
|
1659 | |
|
|
1660 | static void |
|
|
1661 | api_schedule (pTHX) |
|
|
1662 | { |
|
|
1663 | struct coro_transfer_args ta; |
|
|
1664 | |
|
|
1665 | prepare_schedule (aTHX_ &ta); |
|
|
1666 | TRANSFER (ta, 1); |
|
|
1667 | } |
|
|
1668 | |
1660 | static int |
1669 | static int |
1661 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1670 | api_cede (pTHX) |
1662 | { |
1671 | { |
1663 | if (coro_nready) |
1672 | struct coro_transfer_args ta; |
1664 | { |
1673 | |
1665 | SV *prev = SvRV (coro_current); |
|
|
1666 | prepare_schedule (aTHX_ ta); |
1674 | prepare_cede (aTHX_ &ta); |
1667 | api_ready (prev); |
1675 | |
|
|
1676 | if (expect_true (ta.prev != ta.next)) |
|
|
1677 | { |
|
|
1678 | TRANSFER (ta, 1); |
1668 | return 1; |
1679 | return 1; |
1669 | } |
1680 | } |
1670 | else |
1681 | else |
1671 | return 0; |
1682 | return 0; |
1672 | } |
1683 | } |
1673 | |
1684 | |
1674 | static void |
|
|
1675 | api_schedule (void) |
|
|
1676 | { |
|
|
1677 | dTHX; |
|
|
1678 | struct transfer_args ta; |
|
|
1679 | |
|
|
1680 | prepare_schedule (aTHX_ &ta); |
|
|
1681 | TRANSFER (ta, 1); |
|
|
1682 | } |
|
|
1683 | |
|
|
1684 | static int |
1685 | static int |
1685 | api_cede (void) |
1686 | api_cede_notself (pTHX) |
1686 | { |
1687 | { |
1687 | dTHX; |
1688 | if (coro_nready) |
|
|
1689 | { |
1688 | struct transfer_args ta; |
1690 | struct coro_transfer_args ta; |
1689 | |
1691 | |
1690 | prepare_cede (aTHX_ &ta); |
1692 | prepare_cede_notself (aTHX_ &ta); |
1691 | |
|
|
1692 | if (expect_true (ta.prev != ta.next)) |
|
|
1693 | { |
|
|
1694 | TRANSFER (ta, 1); |
1693 | TRANSFER (ta, 1); |
1695 | return 1; |
1694 | return 1; |
1696 | } |
1695 | } |
1697 | else |
1696 | else |
1698 | return 0; |
1697 | return 0; |
1699 | } |
1698 | } |
1700 | |
1699 | |
1701 | static int |
1700 | static void |
1702 | api_cede_notself (void) |
|
|
1703 | { |
|
|
1704 | dTHX; |
|
|
1705 | struct transfer_args ta; |
|
|
1706 | |
|
|
1707 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1708 | { |
|
|
1709 | TRANSFER (ta, 1); |
|
|
1710 | return 1; |
|
|
1711 | } |
|
|
1712 | else |
|
|
1713 | return 0; |
|
|
1714 | } |
|
|
1715 | |
|
|
1716 | static void |
|
|
1717 | api_trace (SV *coro_sv, int flags) |
1701 | api_trace (pTHX_ SV *coro_sv, int flags) |
1718 | { |
1702 | { |
1719 | dTHX; |
|
|
1720 | struct coro *coro = SvSTATE (coro_sv); |
1703 | struct coro *coro = SvSTATE (coro_sv); |
1721 | |
1704 | |
1722 | if (flags & CC_TRACE) |
1705 | if (flags & CC_TRACE) |
1723 | { |
1706 | { |
1724 | if (!coro->cctx) |
1707 | if (!coro->cctx) |
1725 | coro->cctx = cctx_new_run (); |
1708 | coro->cctx = cctx_new_run (); |
1726 | else if (!(coro->cctx->flags & CC_TRACE)) |
1709 | else if (!(coro->cctx->flags & CC_TRACE)) |
1727 | croak ("cannot enable tracing on coroutine with custom stack"); |
1710 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1728 | |
1711 | |
1729 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1712 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1730 | } |
1713 | } |
1731 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1714 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1732 | { |
1715 | { |
… | |
… | |
1791 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1774 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1792 | double now = nvtime (); |
1775 | double now = nvtime (); |
1793 | |
1776 | |
1794 | if (now >= self->next) |
1777 | if (now >= self->next) |
1795 | { |
1778 | { |
1796 | api_cede (); |
1779 | api_cede (aTHX); |
1797 | self->next = now + self->every; |
1780 | self->next = now + self->every; |
1798 | } |
1781 | } |
1799 | |
1782 | |
1800 | return PerlIOBuf_flush (aTHX_ f); |
1783 | return PerlIOBuf_flush (aTHX_ f); |
1801 | } |
1784 | } |
… | |
… | |
1832 | PerlIOBuf_set_ptrcnt, |
1815 | PerlIOBuf_set_ptrcnt, |
1833 | }; |
1816 | }; |
1834 | |
1817 | |
1835 | /*****************************************************************************/ |
1818 | /*****************************************************************************/ |
1836 | |
1819 | |
1837 | static const CV *ssl_cv; /* for quick consistency check */ |
1820 | static const CV *slf_cv; /* for quick consistency check */ |
1838 | |
1821 | |
1839 | static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */ |
1822 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
1840 | static SV *ssl_arg0; |
1823 | static SV *slf_arg0; |
1841 | static SV *ssl_arg1; |
1824 | static SV *slf_arg1; |
|
|
1825 | static SV *slf_arg2; |
1842 | |
1826 | |
1843 | /* this restores the stack in the case we patched the entersub, to */ |
1827 | /* this restores the stack in the case we patched the entersub, to */ |
1844 | /* recreate the stack frame as perl will on following calls */ |
1828 | /* recreate the stack frame as perl will on following calls */ |
1845 | /* since entersub cleared the stack */ |
1829 | /* since entersub cleared the stack */ |
1846 | static OP * |
1830 | static OP * |
… | |
… | |
1849 | dSP; |
1833 | dSP; |
1850 | |
1834 | |
1851 | PUSHMARK (SP); |
1835 | PUSHMARK (SP); |
1852 | |
1836 | |
1853 | EXTEND (SP, 3); |
1837 | EXTEND (SP, 3); |
1854 | if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0; |
1838 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
1855 | if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0; |
1839 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1840 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
1856 | PUSHs ((SV *)CvGV (ssl_cv)); |
1841 | PUSHs ((SV *)CvGV (slf_cv)); |
1857 | |
1842 | |
1858 | RETURNOP (ssl_restore.op_first); |
1843 | RETURNOP (slf_restore.op_first); |
1859 | } |
1844 | } |
1860 | |
1845 | |
1861 | /* declare prototype */ |
1846 | static void |
1862 | XS(XS_Coro__State__set_stacklevel); |
1847 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1848 | { |
|
|
1849 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1850 | } |
1863 | |
1851 | |
1864 | #define OPpENTERSUB_SSL 15 |
1852 | static void |
|
|
1853 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1854 | { |
|
|
1855 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
1865 | |
1856 | |
|
|
1857 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1858 | frame->check = slf_check_nop; |
|
|
1859 | frame->data = (void *)SvIV (arg [0]); |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | static void |
|
|
1863 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1864 | { |
|
|
1865 | SV **arg = (SV **)slf_frame.data; |
|
|
1866 | |
|
|
1867 | prepare_transfer (ta, arg [0], arg [1]); |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | static void |
|
|
1871 | slf_init_transfer (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1872 | { |
|
|
1873 | if (items != 2) |
|
|
1874 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1875 | |
|
|
1876 | frame->prepare = slf_prepare_transfer; |
|
|
1877 | frame->check = slf_check_nop; |
|
|
1878 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1879 | } |
|
|
1880 | |
|
|
1881 | static void |
|
|
1882 | slf_init_schedule (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1883 | { |
|
|
1884 | frame->prepare = prepare_schedule; |
|
|
1885 | frame->check = slf_check_nop; |
|
|
1886 | } |
|
|
1887 | |
|
|
1888 | static void |
|
|
1889 | slf_init_cede (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1890 | { |
|
|
1891 | frame->prepare = prepare_cede; |
|
|
1892 | frame->check = slf_check_nop; |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | static void |
|
|
1896 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1897 | { |
|
|
1898 | frame->prepare = prepare_cede_notself; |
|
|
1899 | frame->check = slf_check_nop; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1903 | #define CVf_SLF 0x4000 |
|
|
1904 | |
|
|
1905 | /* |
|
|
1906 | * these not obviously related functions are all rolled into one |
|
|
1907 | * function to increase chances that they all will call transfer with the same |
|
|
1908 | * stack offset |
|
|
1909 | * SLF stands for "schedule-like-function". |
|
|
1910 | */ |
1866 | static OP * |
1911 | static OP * |
1867 | pp_set_stacklevel (pTHX) |
1912 | pp_slf (pTHX) |
1868 | { |
1913 | { |
|
|
1914 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1915 | |
|
|
1916 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1917 | /* the latter happens when a new coro has been started */ |
|
|
1918 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1919 | if (expect_true (!slf_frame.prepare)) |
|
|
1920 | { |
|
|
1921 | /* first iteration */ |
1869 | dSP; |
1922 | dSP; |
1870 | struct transfer_args ta; |
|
|
1871 | SV **arg = PL_stack_base + TOPMARK + 1; |
1923 | SV **arg = PL_stack_base + TOPMARK + 1; |
1872 | int items = SP - arg; /* args without function object */ |
1924 | int items = SP - arg; /* args without function object */ |
|
|
1925 | SV *gv = *sp; |
1873 | |
1926 | |
1874 | /* do a quick consistency check on the "function" object, and if it isn't */ |
1927 | /* do a quick consistency check on the "function" object, and if it isn't */ |
1875 | /* for us, divert to the real entersub */ |
1928 | /* for us, divert to the real entersub */ |
1876 | if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel) |
1929 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
1877 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
1930 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
1878 | |
1931 | |
1879 | /* pop args */ |
1932 | /* pop args */ |
1880 | SP = PL_stack_base + POPMARK; |
1933 | SP = PL_stack_base + POPMARK; |
1881 | |
1934 | |
1882 | if (!(PL_op->op_flags & OPf_STACKED)) |
1935 | if (!(PL_op->op_flags & OPf_STACKED)) |
1883 | { |
1936 | { |
1884 | /* ampersand-form of call, use @_ instead of stack */ |
1937 | /* ampersand-form of call, use @_ instead of stack */ |
1885 | AV *av = GvAV (PL_defgv); |
1938 | AV *av = GvAV (PL_defgv); |
1886 | arg = AvARRAY (av); |
1939 | arg = AvARRAY (av); |
1887 | items = AvFILLp (av) + 1; |
1940 | items = AvFILLp (av) + 1; |
|
|
1941 | } |
|
|
1942 | |
|
|
1943 | PUTBACK; |
|
|
1944 | |
|
|
1945 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) (aTHX_ &slf_frame, arg, items); |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | /* now interpret the slf_frame */ |
|
|
1949 | /* we use a callback system not to make the code needlessly */ |
|
|
1950 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1951 | |
|
|
1952 | do |
|
|
1953 | { |
|
|
1954 | struct coro_transfer_args ta; |
|
|
1955 | |
|
|
1956 | slf_frame.prepare (aTHX_ &ta); |
|
|
1957 | TRANSFER (ta, 0); |
|
|
1958 | |
|
|
1959 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1960 | } |
|
|
1961 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1962 | |
|
|
1963 | { |
|
|
1964 | dSP; |
|
|
1965 | SV **bot = PL_stack_base + checkmark; |
|
|
1966 | int gimme = GIMME_V; |
|
|
1967 | |
|
|
1968 | slf_frame.prepare = 0; /* signal pp_slf that we need a new frame */ |
|
|
1969 | |
|
|
1970 | /* make sure we put something on the stack in scalar context */ |
|
|
1971 | if (gimme == G_SCALAR) |
|
|
1972 | { |
|
|
1973 | if (sp == bot) |
|
|
1974 | XPUSHs (&PL_sv_undef); |
|
|
1975 | |
|
|
1976 | SP = bot + 1; |
1888 | } |
1977 | } |
1889 | |
1978 | |
1890 | PUTBACK; |
1979 | PUTBACK; |
1891 | switch (PL_op->op_private & OPpENTERSUB_SSL) |
|
|
1892 | { |
|
|
1893 | case 0: |
|
|
1894 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0])); |
|
|
1895 | break; |
|
|
1896 | |
|
|
1897 | case 1: |
|
|
1898 | if (items != 2) |
|
|
1899 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items); |
|
|
1900 | |
|
|
1901 | prepare_transfer (aTHX_ &ta, arg [0], arg [1]); |
|
|
1902 | break; |
|
|
1903 | |
|
|
1904 | case 2: |
|
|
1905 | prepare_schedule (aTHX_ &ta); |
|
|
1906 | break; |
|
|
1907 | |
|
|
1908 | case 3: |
|
|
1909 | prepare_cede (aTHX_ &ta); |
|
|
1910 | break; |
|
|
1911 | |
|
|
1912 | case 4: |
|
|
1913 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1914 | goto skip; |
|
|
1915 | |
|
|
1916 | break; |
|
|
1917 | } |
1980 | } |
1918 | |
1981 | |
1919 | TRANSFER (ta, 0); |
1982 | return NORMAL; |
1920 | SPAGAIN; |
1983 | } |
1921 | |
1984 | |
1922 | skip: |
1985 | static void |
1923 | PUTBACK; |
1986 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
1924 | SSL_TAIL; |
1987 | { |
1925 | SPAGAIN; |
1988 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
1926 | RETURN; |
1989 | |
|
|
1990 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1991 | && PL_op->op_ppaddr != pp_slf) |
|
|
1992 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or other means, caught"); |
|
|
1993 | |
|
|
1994 | if (items > 3) |
|
|
1995 | croak ("Coro only supports up to three arguments to SLF functions currently, caught"); |
|
|
1996 | |
|
|
1997 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1998 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1999 | slf_cv = cv; |
|
|
2000 | |
|
|
2001 | /* we patch the op, and then re-run the whole call */ |
|
|
2002 | /* we have to put the same argument on the stack for this to work */ |
|
|
2003 | /* and this will be done by pp_restore */ |
|
|
2004 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2005 | slf_restore.op_type = OP_NULL; |
|
|
2006 | slf_restore.op_ppaddr = pp_restore; |
|
|
2007 | slf_restore.op_first = PL_op; |
|
|
2008 | |
|
|
2009 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
2010 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
2011 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
2012 | |
|
|
2013 | PL_op->op_ppaddr = pp_slf; |
|
|
2014 | |
|
|
2015 | PL_op = (OP *)&slf_restore; |
1927 | } |
2016 | } |
1928 | |
2017 | |
1929 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2018 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1930 | |
2019 | |
1931 | PROTOTYPES: DISABLE |
2020 | PROTOTYPES: DISABLE |
1932 | |
|
|
1933 | # these not obviously related functions are all rolled into the same xs |
|
|
1934 | # function to increase chances that they all will call transfer with the same |
|
|
1935 | # stack offset |
|
|
1936 | void |
|
|
1937 | _set_stacklevel (...) |
|
|
1938 | ALIAS: |
|
|
1939 | Coro::State::transfer = 1 |
|
|
1940 | Coro::schedule = 2 |
|
|
1941 | Coro::cede = 3 |
|
|
1942 | Coro::cede_notself = 4 |
|
|
1943 | CODE: |
|
|
1944 | { |
|
|
1945 | assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel)); |
|
|
1946 | |
|
|
1947 | assert (("FATAL: ssl call with illegal CV value", CvGV (cv))); |
|
|
1948 | ssl_cv = cv; |
|
|
1949 | |
|
|
1950 | /* we patch the op, and then re-run the whole call */ |
|
|
1951 | /* we have to put some dummy argument on the stack for this to work */ |
|
|
1952 | ssl_restore.op_next = (OP *)&ssl_restore; |
|
|
1953 | ssl_restore.op_type = OP_NULL; |
|
|
1954 | ssl_restore.op_ppaddr = pp_restore; |
|
|
1955 | ssl_restore.op_first = PL_op; |
|
|
1956 | |
|
|
1957 | ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0; |
|
|
1958 | ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0; |
|
|
1959 | |
|
|
1960 | PL_op->op_ppaddr = pp_set_stacklevel; |
|
|
1961 | PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SSL | ix; /* we potentially share our private flags with entersub */ |
|
|
1962 | |
|
|
1963 | PL_op = (OP *)&ssl_restore; |
|
|
1964 | } |
|
|
1965 | |
2021 | |
1966 | BOOT: |
2022 | BOOT: |
1967 | { |
2023 | { |
1968 | #ifdef USE_ITHREADS |
2024 | #ifdef USE_ITHREADS |
1969 | MUTEX_INIT (&coro_lock); |
2025 | MUTEX_INIT (&coro_lock); |
… | |
… | |
1995 | main_top_env = PL_top_env; |
2051 | main_top_env = PL_top_env; |
1996 | |
2052 | |
1997 | while (main_top_env->je_prev) |
2053 | while (main_top_env->je_prev) |
1998 | main_top_env = main_top_env->je_prev; |
2054 | main_top_env = main_top_env->je_prev; |
1999 | |
2055 | |
2000 | coroapi.ver = CORO_API_VERSION; |
2056 | coroapi.ver = CORO_API_VERSION; |
2001 | coroapi.rev = CORO_API_REVISION; |
2057 | coroapi.rev = CORO_API_REVISION; |
|
|
2058 | |
2002 | coroapi.transfer = api_transfer; |
2059 | coroapi.transfer = api_transfer; |
|
|
2060 | |
|
|
2061 | coroapi.sv_state = SvSTATE_; |
|
|
2062 | coroapi.execute_slf = api_execute_slf; |
|
|
2063 | coroapi.prepare_nop = prepare_nop; |
|
|
2064 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2065 | coroapi.prepare_cede = prepare_cede; |
|
|
2066 | coroapi.prepare_cede_notself = prepare_cede_notself; |
2003 | |
2067 | |
2004 | { |
2068 | { |
2005 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2069 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2006 | |
2070 | |
2007 | if (!svp) croak ("Time::HiRes is required"); |
2071 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
2039 | for (i = 1; i < items; i++) |
2103 | for (i = 1; i < items; i++) |
2040 | av_push (coro->args, newSVsv (ST (i))); |
2104 | av_push (coro->args, newSVsv (ST (i))); |
2041 | } |
2105 | } |
2042 | OUTPUT: |
2106 | OUTPUT: |
2043 | RETVAL |
2107 | RETVAL |
|
|
2108 | |
|
|
2109 | void |
|
|
2110 | _set_stacklevel (...) |
|
|
2111 | CODE: |
|
|
2112 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
|
|
2113 | |
|
|
2114 | void |
|
|
2115 | transfer (...) |
|
|
2116 | CODE: |
|
|
2117 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
2044 | |
2118 | |
2045 | bool |
2119 | bool |
2046 | _destroy (SV *coro_sv) |
2120 | _destroy (SV *coro_sv) |
2047 | CODE: |
2121 | CODE: |
2048 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2122 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2166 | SvREFCNT_dec (self->throw); |
2240 | SvREFCNT_dec (self->throw); |
2167 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2241 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2168 | |
2242 | |
2169 | void |
2243 | void |
2170 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2244 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2245 | C_ARGS: aTHX_ coro, flags |
2171 | |
2246 | |
2172 | SV * |
2247 | SV * |
2173 | has_cctx (Coro::State coro) |
2248 | has_cctx (Coro::State coro) |
2174 | PROTOTYPE: $ |
2249 | PROTOTYPE: $ |
2175 | CODE: |
2250 | CODE: |
… | |
… | |
2210 | PROTOTYPE: $ |
2285 | PROTOTYPE: $ |
2211 | ALIAS: |
2286 | ALIAS: |
2212 | swap_defav = 1 |
2287 | swap_defav = 1 |
2213 | CODE: |
2288 | CODE: |
2214 | if (!self->slot) |
2289 | if (!self->slot) |
2215 | croak ("cannot swap state with coroutine that has no saved state"); |
2290 | croak ("cannot swap state with coroutine that has no saved state,"); |
2216 | else |
2291 | else |
2217 | { |
2292 | { |
2218 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2293 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2219 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2294 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2220 | |
2295 | |
… | |
… | |
2252 | coroapi.schedule = api_schedule; |
2327 | coroapi.schedule = api_schedule; |
2253 | coroapi.cede = api_cede; |
2328 | coroapi.cede = api_cede; |
2254 | coroapi.cede_notself = api_cede_notself; |
2329 | coroapi.cede_notself = api_cede_notself; |
2255 | coroapi.ready = api_ready; |
2330 | coroapi.ready = api_ready; |
2256 | coroapi.is_ready = api_is_ready; |
2331 | coroapi.is_ready = api_is_ready; |
2257 | coroapi.nready = &coro_nready; |
2332 | coroapi.nready = coro_nready; |
2258 | coroapi.current = coro_current; |
2333 | coroapi.current = coro_current; |
2259 | |
2334 | |
2260 | GCoroAPI = &coroapi; |
2335 | GCoroAPI = &coroapi; |
2261 | sv_setiv (sv, (IV)&coroapi); |
2336 | sv_setiv (sv, (IV)&coroapi); |
2262 | SvREADONLY_on (sv); |
2337 | SvREADONLY_on (sv); |
2263 | } |
2338 | } |
2264 | } |
2339 | } |
|
|
2340 | |
|
|
2341 | void |
|
|
2342 | schedule (...) |
|
|
2343 | CODE: |
|
|
2344 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), items); |
|
|
2345 | |
|
|
2346 | void |
|
|
2347 | cede (...) |
|
|
2348 | CODE: |
|
|
2349 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), items); |
|
|
2350 | |
|
|
2351 | void |
|
|
2352 | cede_notself (...) |
|
|
2353 | CODE: |
|
|
2354 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), items); |
2265 | |
2355 | |
2266 | void |
2356 | void |
2267 | _set_current (SV *current) |
2357 | _set_current (SV *current) |
2268 | PROTOTYPE: $ |
2358 | PROTOTYPE: $ |
2269 | CODE: |
2359 | CODE: |
… | |
… | |
2303 | |
2393 | |
2304 | SV * |
2394 | SV * |
2305 | ready (SV *self) |
2395 | ready (SV *self) |
2306 | PROTOTYPE: $ |
2396 | PROTOTYPE: $ |
2307 | CODE: |
2397 | CODE: |
2308 | RETVAL = boolSV (api_ready (self)); |
2398 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2309 | OUTPUT: |
2399 | OUTPUT: |
2310 | RETVAL |
2400 | RETVAL |
2311 | |
2401 | |
2312 | int |
2402 | int |
2313 | nready (...) |
2403 | nready (...) |
… | |
… | |
2383 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2473 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2384 | |
2474 | |
2385 | coro->prio = 0; |
2475 | coro->prio = 0; |
2386 | |
2476 | |
2387 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2477 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2388 | api_trace (coro_current, 0); |
2478 | api_trace (aTHX_ coro_current, 0); |
2389 | |
2479 | |
2390 | av_push (av_async_pool, newSVsv (coro_current)); |
2480 | av_push (av_async_pool, newSVsv (coro_current)); |
2391 | } |
2481 | } |
2392 | |
2482 | |
2393 | #if 0 |
2483 | #if 0 |
… | |
… | |
2465 | |
2555 | |
2466 | av_push (av, data_sv); |
2556 | av_push (av, data_sv); |
2467 | |
2557 | |
2468 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
2558 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
2469 | |
2559 | |
2470 | api_ready (self); |
2560 | api_ready (aTHX_ self); |
2471 | } |
2561 | } |
2472 | |
2562 | |
2473 | void |
2563 | void |
2474 | _set_state (SV *state) |
2564 | _set_state (SV *state) |
2475 | PROTOTYPE: $ |
2565 | PROTOTYPE: $ |
… | |
… | |
2500 | PROTOTYPE: @ |
2590 | PROTOTYPE: @ |
2501 | CODE: |
2591 | CODE: |
2502 | { |
2592 | { |
2503 | static int incede; |
2593 | static int incede; |
2504 | |
2594 | |
2505 | api_cede_notself (); |
2595 | api_cede_notself (aTHX); |
2506 | |
2596 | |
2507 | ++incede; |
2597 | ++incede; |
2508 | while (coro_nready >= incede && api_cede ()) |
2598 | while (coro_nready >= incede && api_cede (aTHX)) |
2509 | ; |
2599 | ; |
2510 | |
2600 | |
2511 | sv_setsv (sv_activity, &PL_sv_undef); |
2601 | sv_setsv (sv_activity, &PL_sv_undef); |
2512 | if (coro_nready >= incede) |
2602 | if (coro_nready >= incede) |
2513 | { |
2603 | { |