… | |
… | |
16 | |
16 | |
17 | #ifdef WIN32 |
17 | #ifdef WIN32 |
18 | # undef setjmp |
18 | # undef setjmp |
19 | # undef longjmp |
19 | # undef longjmp |
20 | # undef _exit |
20 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
21 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
22 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
23 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
24 | #endif |
25 | |
25 | |
26 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
… | |
… | |
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 |
… | |
… | |
117 | #endif |
120 | #endif |
118 | |
121 | |
119 | /* The next macros try to return the current stack pointer, in an as |
122 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
123 | * portable way as possible. */ |
121 | #if __GNUC__ >= 4 |
124 | #if __GNUC__ >= 4 |
|
|
125 | # define dSTACKLEVEL int stacklevel_dummy |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
126 | # define STACKLEVEL __builtin_frame_address (0) |
123 | #else |
127 | #else |
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
128 | # define dSTACKLEVEL volatile void *stacklevel |
|
|
129 | # define STACKLEVEL ((void *)&stacklevel) |
125 | #endif |
130 | #endif |
126 | |
131 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
132 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
128 | |
133 | |
129 | #if __GNUC__ >= 3 |
134 | #if __GNUC__ >= 3 |
… | |
… | |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
145 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
146 | |
142 | #define NOINLINE attribute ((noinline)) |
147 | #define NOINLINE attribute ((noinline)) |
143 | |
148 | |
144 | #include "CoroAPI.h" |
149 | #include "CoroAPI.h" |
|
|
150 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
151 | |
146 | #ifdef USE_ITHREADS |
152 | #ifdef USE_ITHREADS |
147 | # if CORO_PTHREAD |
153 | # if CORO_PTHREAD |
148 | static void *coro_thx; |
154 | static void *coro_thx; |
149 | # endif |
155 | # endif |
150 | #endif |
156 | #endif |
151 | |
157 | |
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? */ |
158 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
159 | |
|
|
160 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
161 | #define CVf_SLF 0x4000 |
|
|
162 | static OP *pp_slf (pTHX); |
163 | |
163 | |
164 | static U32 cctx_gen; |
164 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
… | |
… | |
241 | /* this is a structure representing a perl-level coroutine */ |
241 | /* this is a structure representing a perl-level coroutine */ |
242 | struct coro { |
242 | struct coro { |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
244 | coro_cctx *cctx; |
244 | coro_cctx *cctx; |
245 | |
245 | |
246 | /* process data */ |
246 | /* state data */ |
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
248 | AV *mainstack; |
248 | AV *mainstack; |
249 | perl_slots *slot; /* basically the saved sp */ |
249 | perl_slots *slot; /* basically the saved sp */ |
250 | |
250 | |
|
|
251 | CV *startcv; /* the CV to execute */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
253 | int refcnt; /* coroutines are refcounted, yes */ |
253 | int flags; /* CF_ flags */ |
254 | int flags; /* CF_ flags */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
255 | HV *hv; /* the perl hash associated with this coro, if any */ |
255 | void (*on_destroy)(pTHX_ struct coro *coro); |
256 | void (*on_destroy)(pTHX_ struct coro *coro); |
256 | |
257 | |
257 | /* statistics */ |
258 | /* statistics */ |
258 | int usecount; /* number of transfers to this coro */ |
259 | int usecount; /* number of transfers to this coro */ |
259 | |
260 | |
260 | /* coro process data */ |
261 | /* coro process data */ |
261 | int prio; |
262 | int prio; |
262 | SV *throw; /* exception to be thrown */ |
263 | SV *except; /* exception to be thrown */ |
|
|
264 | SV *rouse_cb; |
263 | |
265 | |
264 | /* async_pool */ |
266 | /* async_pool */ |
265 | SV *saved_deffh; |
267 | SV *saved_deffh; |
266 | |
268 | |
267 | /* linked list */ |
269 | /* linked list */ |
… | |
… | |
269 | }; |
271 | }; |
270 | |
272 | |
271 | typedef struct coro *Coro__State; |
273 | typedef struct coro *Coro__State; |
272 | typedef struct coro *Coro__State_or_hashref; |
274 | typedef struct coro *Coro__State_or_hashref; |
273 | |
275 | |
|
|
276 | /* the following variables are effectively part of the perl context */ |
|
|
277 | /* and get copied between struct coro and these variables */ |
|
|
278 | /* the mainr easonw e don't support windows process emulation */ |
274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
279 | static struct CoroSLF slf_frame; /* the current slf frame */ |
275 | |
280 | |
276 | /** Coro ********************************************************************/ |
281 | /** Coro ********************************************************************/ |
277 | |
282 | |
278 | #define PRIO_MAX 3 |
283 | #define PRIO_MAX 3 |
… | |
… | |
284 | |
289 | |
285 | /* for Coro.pm */ |
290 | /* for Coro.pm */ |
286 | static SV *coro_current; |
291 | static SV *coro_current; |
287 | static SV *coro_readyhook; |
292 | static SV *coro_readyhook; |
288 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
293 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
|
|
294 | static CV *cv_coro_run; |
289 | static struct coro *coro_first; |
295 | static struct coro *coro_first; |
290 | #define coro_nready coroapi.nready |
296 | #define coro_nready coroapi.nready |
291 | |
297 | |
292 | /** lowlevel stuff **********************************************************/ |
298 | /** lowlevel stuff **********************************************************/ |
293 | |
299 | |
… | |
… | |
317 | #if PERL_VERSION_ATLEAST (5,10,0) |
323 | #if PERL_VERSION_ATLEAST (5,10,0) |
318 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
324 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
319 | get_hv (name, create); |
325 | get_hv (name, create); |
320 | #endif |
326 | #endif |
321 | return get_hv (name, create); |
327 | return get_hv (name, create); |
|
|
328 | } |
|
|
329 | |
|
|
330 | /* may croak */ |
|
|
331 | INLINE CV * |
|
|
332 | coro_sv_2cv (SV *sv) |
|
|
333 | { |
|
|
334 | HV *st; |
|
|
335 | GV *gvp; |
|
|
336 | return sv_2cv (sv, &st, &gvp, 0); |
322 | } |
337 | } |
323 | |
338 | |
324 | static AV * |
339 | static AV * |
325 | coro_clone_padlist (pTHX_ CV *cv) |
340 | coro_clone_padlist (pTHX_ CV *cv) |
326 | { |
341 | { |
… | |
… | |
380 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
381 | |
396 | |
382 | return 0; |
397 | return 0; |
383 | } |
398 | } |
384 | |
399 | |
385 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
400 | #define CORO_MAGIC_type_cv 26 |
386 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
387 | |
402 | |
388 | static MGVTBL coro_cv_vtbl = { |
403 | static MGVTBL coro_cv_vtbl = { |
389 | 0, 0, 0, 0, |
404 | 0, 0, 0, 0, |
390 | coro_cv_free |
405 | coro_cv_free |
391 | }; |
406 | }; |
392 | |
407 | |
|
|
408 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
409 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
410 | ? SvMAGIC (sv) \ |
|
|
411 | : mg_find (sv, type)) |
|
|
412 | |
393 | #define CORO_MAGIC(sv, type) \ |
413 | #define CORO_MAGIC(sv, type) \ |
394 | expect_true (SvMAGIC (sv)) \ |
414 | (expect_true (SvMAGIC (sv)) \ |
395 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
415 | ? CORO_MAGIC_NN (sv, type) \ |
396 | ? SvMAGIC (sv) \ |
|
|
397 | : mg_find (sv, type) \ |
|
|
398 | : 0 |
416 | : 0) |
399 | |
417 | |
400 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
418 | #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) |
419 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
402 | |
420 | |
403 | INLINE struct coro * |
421 | INLINE struct coro * |
404 | SvSTATE_ (pTHX_ SV *coro) |
422 | SvSTATE_ (pTHX_ SV *coro) |
405 | { |
423 | { |
406 | HV *stash; |
424 | HV *stash; |
… | |
… | |
424 | return (struct coro *)mg->mg_ptr; |
442 | return (struct coro *)mg->mg_ptr; |
425 | } |
443 | } |
426 | |
444 | |
427 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
445 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
428 | |
446 | |
429 | /* fastert than SvSTATE, but expects a coroutine hv */ |
447 | /* faster than SvSTATE, but expects a coroutine hv */ |
430 | INLINE struct coro * |
448 | #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)) |
449 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
441 | |
450 | |
442 | /* the next two functions merely cache the padlists */ |
451 | /* the next two functions merely cache the padlists */ |
443 | static void |
452 | static void |
444 | get_padlist (pTHX_ CV *cv) |
453 | get_padlist (pTHX_ CV *cv) |
… | |
… | |
451 | else |
460 | else |
452 | { |
461 | { |
453 | #if CORO_PREFER_PERL_FUNCTIONS |
462 | #if CORO_PREFER_PERL_FUNCTIONS |
454 | /* this is probably cleaner? but also slower! */ |
463 | /* this is probably cleaner? but also slower! */ |
455 | /* in practise, it seems to be less stable */ |
464 | /* in practise, it seems to be less stable */ |
456 | CV *cp = Perl_cv_clone (cv); |
465 | CV *cp = Perl_cv_clone (aTHX_ cv); |
457 | CvPADLIST (cv) = CvPADLIST (cp); |
466 | CvPADLIST (cv) = CvPADLIST (cp); |
458 | CvPADLIST (cp) = 0; |
467 | CvPADLIST (cp) = 0; |
459 | SvREFCNT_dec (cp); |
468 | SvREFCNT_dec (cp); |
460 | #else |
469 | #else |
461 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
470 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
513 | } |
522 | } |
514 | |
523 | |
515 | PUTBACK; |
524 | PUTBACK; |
516 | } |
525 | } |
517 | |
526 | |
518 | slf_frame = c->slf_frame; |
527 | slf_frame = c->slf_frame; |
|
|
528 | CORO_THROW = c->except; |
519 | } |
529 | } |
520 | |
530 | |
521 | static void |
531 | static void |
522 | save_perl (pTHX_ Coro__State c) |
532 | save_perl (pTHX_ Coro__State c) |
523 | { |
533 | { |
|
|
534 | c->except = CORO_THROW; |
524 | c->slf_frame = slf_frame; |
535 | c->slf_frame = slf_frame; |
525 | |
536 | |
526 | { |
537 | { |
527 | dSP; |
538 | dSP; |
528 | I32 cxix = cxstack_ix; |
539 | I32 cxix = cxstack_ix; |
… | |
… | |
603 | * of perl.c:init_stacks, except that it uses less memory |
614 | * of perl.c:init_stacks, except that it uses less memory |
604 | * on the (sometimes correct) assumption that coroutines do |
615 | * on the (sometimes correct) assumption that coroutines do |
605 | * not usually need a lot of stackspace. |
616 | * not usually need a lot of stackspace. |
606 | */ |
617 | */ |
607 | #if CORO_PREFER_PERL_FUNCTIONS |
618 | #if CORO_PREFER_PERL_FUNCTIONS |
608 | # define coro_init_stacks init_stacks |
619 | # define coro_init_stacks(thx) init_stacks () |
609 | #else |
620 | #else |
610 | static void |
621 | static void |
611 | coro_init_stacks (pTHX) |
622 | coro_init_stacks (pTHX) |
612 | { |
623 | { |
613 | PL_curstackinfo = new_stackinfo(32, 8); |
624 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
821 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
832 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
822 | { |
833 | { |
823 | return 0; |
834 | return 0; |
824 | } |
835 | } |
825 | |
836 | |
826 | static void |
837 | static UNOP coro_setup_op; |
|
|
838 | |
|
|
839 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
827 | coro_setup (pTHX_ struct coro *coro) |
840 | coro_setup (pTHX_ struct coro *coro) |
828 | { |
841 | { |
829 | /* |
842 | /* |
830 | * emulate part of the perl startup here. |
843 | * emulate part of the perl startup here. |
831 | */ |
844 | */ |
… | |
… | |
858 | { |
871 | { |
859 | dSP; |
872 | dSP; |
860 | UNOP myop; |
873 | UNOP myop; |
861 | |
874 | |
862 | Zero (&myop, 1, UNOP); |
875 | Zero (&myop, 1, UNOP); |
863 | myop.op_next = Nullop; |
876 | myop.op_next = Nullop; |
|
|
877 | myop.op_type = OP_ENTERSUB; |
864 | myop.op_flags = OPf_WANT_VOID; |
878 | myop.op_flags = OPf_WANT_VOID; |
865 | |
879 | |
866 | PUSHMARK (SP); |
880 | PUSHMARK (SP); |
867 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
881 | PUSHs ((SV *)coro->startcv); |
868 | PUTBACK; |
882 | PUTBACK; |
869 | PL_op = (OP *)&myop; |
883 | PL_op = (OP *)&myop; |
870 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
884 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
871 | SPAGAIN; |
|
|
872 | } |
885 | } |
873 | |
886 | |
874 | /* this newly created coroutine might be run on an existing cctx which most |
887 | /* 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. |
888 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
876 | */ |
889 | */ |
877 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
890 | 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 */ |
891 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
892 | |
|
|
893 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
894 | coro_setup_op.op_next = PL_op; |
|
|
895 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
896 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
897 | /* no flags etc. required, as an init function won't be called */ |
|
|
898 | |
|
|
899 | PL_op = (OP *)&coro_setup_op; |
|
|
900 | |
|
|
901 | /* copy throw, in case it was set before coro_setup */ |
|
|
902 | CORO_THROW = coro->except; |
879 | } |
903 | } |
880 | |
904 | |
881 | static void |
905 | static void |
882 | coro_destruct (pTHX_ struct coro *coro) |
906 | coro_destruct (pTHX_ struct coro *coro) |
883 | { |
907 | { |
… | |
… | |
907 | |
931 | |
908 | SvREFCNT_dec (PL_diehook); |
932 | SvREFCNT_dec (PL_diehook); |
909 | SvREFCNT_dec (PL_warnhook); |
933 | SvREFCNT_dec (PL_warnhook); |
910 | |
934 | |
911 | SvREFCNT_dec (coro->saved_deffh); |
935 | SvREFCNT_dec (coro->saved_deffh); |
912 | SvREFCNT_dec (coro->throw); |
936 | SvREFCNT_dec (coro->rouse_cb); |
913 | |
937 | |
914 | coro_destruct_stacks (aTHX); |
938 | coro_destruct_stacks (aTHX); |
915 | } |
939 | } |
916 | |
940 | |
917 | INLINE void |
941 | INLINE void |
… | |
… | |
1004 | SAVETMPS; |
1028 | SAVETMPS; |
1005 | EXTEND (SP, 3); |
1029 | EXTEND (SP, 3); |
1006 | PUSHMARK (SP); |
1030 | PUSHMARK (SP); |
1007 | PUSHs (&PL_sv_yes); |
1031 | PUSHs (&PL_sv_yes); |
1008 | PUSHs (fullname); |
1032 | PUSHs (fullname); |
1009 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1033 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1010 | PUTBACK; |
1034 | PUTBACK; |
1011 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1035 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1012 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1036 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1013 | SPAGAIN; |
1037 | SPAGAIN; |
1014 | FREETMPS; |
1038 | FREETMPS; |
… | |
… | |
1046 | |
1070 | |
1047 | TAINT_NOT; |
1071 | TAINT_NOT; |
1048 | return 0; |
1072 | return 0; |
1049 | } |
1073 | } |
1050 | |
1074 | |
|
|
1075 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1076 | static struct CoroSLF cctx_ssl_frame; |
|
|
1077 | |
1051 | static void |
1078 | static void |
1052 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1079 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1053 | { |
1080 | { |
1054 | ta->prev = (struct coro *)cctx; |
1081 | ta->prev = (struct coro *)cctx_ssl_cctx; |
1055 | ta->next = 0; |
1082 | ta->next = 0; |
1056 | } |
1083 | } |
1057 | |
1084 | |
1058 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1085 | static int |
1059 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1086 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1060 | /* during execution of a perl program */ |
1087 | { |
1061 | /* also initialises PL_top_env */ |
1088 | *frame = cctx_ssl_frame; |
|
|
1089 | |
|
|
1090 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1062 | static void NOINLINE |
1094 | static void NOINLINE |
1063 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1095 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1064 | { |
1096 | { |
1065 | dSP; |
|
|
1066 | UNOP myop; |
|
|
1067 | |
|
|
1068 | PL_top_env = &PL_start_env; |
1097 | PL_top_env = &PL_start_env; |
1069 | |
1098 | |
1070 | if (cctx->flags & CC_TRACE) |
1099 | if (cctx->flags & CC_TRACE) |
1071 | PL_runops = runops_trace; |
1100 | PL_runops = runops_trace; |
1072 | |
1101 | |
1073 | Zero (&myop, 1, UNOP); |
1102 | /* we already must be executing an SLF op, there is no other valid way |
1074 | myop.op_next = PL_op; |
1103 | * that can lead to creation of a new cctx */ |
1075 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1104 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1105 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1076 | |
1106 | |
1077 | PUSHMARK (SP); |
1107 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1078 | EXTEND (SP, 2); |
1108 | cctx_ssl_cctx = cctx; |
1079 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1109 | cctx_ssl_frame = slf_frame; |
1080 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1110 | |
1081 | PUTBACK; |
1111 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1082 | PL_op = (OP *)&myop; |
1112 | slf_frame.check = slf_check_set_stacklevel; |
1083 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1084 | SPAGAIN; |
|
|
1085 | } |
1113 | } |
1086 | |
1114 | |
1087 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1115 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1088 | INLINE void |
1116 | INLINE void |
1089 | transfer_tail (pTHX) |
1117 | transfer_tail (pTHX) |
… | |
… | |
1116 | transfer_tail (aTHX); |
1144 | transfer_tail (aTHX); |
1117 | |
1145 | |
1118 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1146 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1119 | PL_restartop = PL_op; |
1147 | PL_restartop = PL_op; |
1120 | perl_run (PL_curinterp); |
1148 | perl_run (PL_curinterp); |
|
|
1149 | /* |
|
|
1150 | * Unfortunately, there is no way to get at the return values of the |
|
|
1151 | * coro body here, as perl_run destroys these |
|
|
1152 | */ |
1121 | |
1153 | |
1122 | /* |
1154 | /* |
1123 | * If perl-run returns we assume exit() was being called or the coro |
1155 | * If perl-run returns we assume exit() was being called or the coro |
1124 | * fell off the end, which seems to be the only valid (non-bug) |
1156 | * fell off the end, which seems to be the only valid (non-bug) |
1125 | * reason for perl_run to return. We try to exit by jumping to the |
1157 | * reason for perl_run to return. We try to exit by jumping to the |
… | |
… | |
1276 | /** coroutine switching *****************************************************/ |
1308 | /** coroutine switching *****************************************************/ |
1277 | |
1309 | |
1278 | static void |
1310 | static void |
1279 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1311 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1280 | { |
1312 | { |
|
|
1313 | /* TODO: throwing up here is considered harmful */ |
|
|
1314 | |
1281 | if (expect_true (prev != next)) |
1315 | if (expect_true (prev != next)) |
1282 | { |
1316 | { |
1283 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1317 | 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,"); |
1318 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1285 | |
1319 | |
… | |
… | |
1295 | #endif |
1329 | #endif |
1296 | } |
1330 | } |
1297 | } |
1331 | } |
1298 | |
1332 | |
1299 | /* always use the TRANSFER macro */ |
1333 | /* always use the TRANSFER macro */ |
1300 | static void NOINLINE |
1334 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1301 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1335 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1302 | { |
1336 | { |
1303 | dSTACKLEVEL; |
1337 | dSTACKLEVEL; |
1304 | |
1338 | |
1305 | /* sometimes transfer is only called to set idle_sp */ |
1339 | /* sometimes transfer is only called to set idle_sp */ |
1306 | if (expect_false (!next)) |
1340 | if (expect_false (!next)) |
1307 | { |
1341 | { |
1308 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1342 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1309 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1343 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1310 | } |
1344 | } |
1311 | else if (expect_true (prev != next)) |
1345 | else if (expect_true (prev != next)) |
1312 | { |
1346 | { |
1313 | coro_cctx *prev__cctx; |
1347 | coro_cctx *prev__cctx; |
… | |
… | |
1338 | |
1372 | |
1339 | prev__cctx = prev->cctx; |
1373 | prev__cctx = prev->cctx; |
1340 | |
1374 | |
1341 | /* possibly untie and reuse the cctx */ |
1375 | /* possibly untie and reuse the cctx */ |
1342 | if (expect_true ( |
1376 | if (expect_true ( |
1343 | prev__cctx->idle_sp == (void *)stacklevel |
1377 | prev__cctx->idle_sp == STACKLEVEL |
1344 | && !(prev__cctx->flags & CC_TRACE) |
1378 | && !(prev__cctx->flags & CC_TRACE) |
1345 | && !force_cctx |
1379 | && !force_cctx |
1346 | )) |
1380 | )) |
1347 | { |
1381 | { |
1348 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1382 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
… | |
… | |
1415 | |
1449 | |
1416 | coro->slot = 0; |
1450 | coro->slot = 0; |
1417 | } |
1451 | } |
1418 | |
1452 | |
1419 | cctx_destroy (coro->cctx); |
1453 | cctx_destroy (coro->cctx); |
|
|
1454 | SvREFCNT_dec (coro->startcv); |
1420 | SvREFCNT_dec (coro->args); |
1455 | SvREFCNT_dec (coro->args); |
|
|
1456 | SvREFCNT_dec (CORO_THROW); |
1421 | |
1457 | |
1422 | if (coro->next) coro->next->prev = coro->prev; |
1458 | if (coro->next) coro->next->prev = coro->prev; |
1423 | if (coro->prev) coro->prev->next = coro->next; |
1459 | if (coro->prev) coro->prev->next = coro->next; |
1424 | if (coro == coro_first) coro_first = coro->next; |
1460 | if (coro == coro_first) coro_first = coro->next; |
1425 | |
1461 | |
… | |
… | |
1479 | |
1515 | |
1480 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1516 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1481 | TRANSFER (ta, 1); |
1517 | TRANSFER (ta, 1); |
1482 | } |
1518 | } |
1483 | |
1519 | |
|
|
1520 | /*****************************************************************************/ |
|
|
1521 | /* gensub: simple closure generation utility */ |
|
|
1522 | |
|
|
1523 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1524 | |
|
|
1525 | /* create a closure from XS, returns a code reference */ |
|
|
1526 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1527 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1528 | static SV * |
|
|
1529 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1530 | { |
|
|
1531 | CV *cv = (CV *)newSV (0); |
|
|
1532 | |
|
|
1533 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1534 | |
|
|
1535 | CvANON_on (cv); |
|
|
1536 | CvISXSUB_on (cv); |
|
|
1537 | CvXSUB (cv) = xsub; |
|
|
1538 | GENSUB_ARG = arg; |
|
|
1539 | |
|
|
1540 | return newRV_noinc ((SV *)cv); |
|
|
1541 | } |
|
|
1542 | |
1484 | /** Coro ********************************************************************/ |
1543 | /** Coro ********************************************************************/ |
1485 | |
1544 | |
1486 | INLINE void |
1545 | INLINE void |
1487 | coro_enq (pTHX_ struct coro *coro) |
1546 | coro_enq (pTHX_ struct coro *coro) |
1488 | { |
1547 | { |
… | |
… | |
1531 | ENTER; |
1590 | ENTER; |
1532 | SAVETMPS; |
1591 | SAVETMPS; |
1533 | |
1592 | |
1534 | PUSHMARK (SP); |
1593 | PUSHMARK (SP); |
1535 | PUTBACK; |
1594 | PUTBACK; |
1536 | call_sv (sv_hook, G_DISCARD); |
1595 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1537 | SPAGAIN; |
|
|
1538 | |
1596 | |
1539 | FREETMPS; |
1597 | FREETMPS; |
1540 | LEAVE; |
1598 | LEAVE; |
1541 | } |
1599 | } |
1542 | |
1600 | |
… | |
… | |
1569 | ENTER; |
1627 | ENTER; |
1570 | SAVETMPS; |
1628 | SAVETMPS; |
1571 | |
1629 | |
1572 | PUSHMARK (SP); |
1630 | PUSHMARK (SP); |
1573 | PUTBACK; |
1631 | PUTBACK; |
1574 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1632 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1575 | SPAGAIN; |
|
|
1576 | |
1633 | |
1577 | FREETMPS; |
1634 | FREETMPS; |
1578 | LEAVE; |
1635 | LEAVE; |
1579 | continue; |
1636 | continue; |
1580 | } |
1637 | } |
… | |
… | |
1687 | if (coro->flags & CF_RUNNING) |
1744 | if (coro->flags & CF_RUNNING) |
1688 | PL_runops = RUNOPS_DEFAULT; |
1745 | PL_runops = RUNOPS_DEFAULT; |
1689 | else |
1746 | else |
1690 | coro->slot->runops = RUNOPS_DEFAULT; |
1747 | coro->slot->runops = RUNOPS_DEFAULT; |
1691 | } |
1748 | } |
|
|
1749 | } |
|
|
1750 | |
|
|
1751 | /*****************************************************************************/ |
|
|
1752 | /* rouse callback */ |
|
|
1753 | |
|
|
1754 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1755 | |
|
|
1756 | static void |
|
|
1757 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1758 | { |
|
|
1759 | dXSARGS; |
|
|
1760 | SV *data = (SV *)GENSUB_ARG; |
|
|
1761 | |
|
|
1762 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1763 | { |
|
|
1764 | /* first call, set args */ |
|
|
1765 | int i; |
|
|
1766 | AV *av = newAV (); |
|
|
1767 | SV *coro = SvRV (data); |
|
|
1768 | |
|
|
1769 | SvRV_set (data, (SV *)av); |
|
|
1770 | api_ready (aTHX_ coro); |
|
|
1771 | SvREFCNT_dec (coro); |
|
|
1772 | |
|
|
1773 | /* better take a full copy of the arguments */ |
|
|
1774 | while (items--) |
|
|
1775 | av_store (av, items, newSVsv (ST (items))); |
|
|
1776 | } |
|
|
1777 | |
|
|
1778 | XSRETURN_EMPTY; |
|
|
1779 | } |
|
|
1780 | |
|
|
1781 | static int |
|
|
1782 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1783 | { |
|
|
1784 | SV *data = (SV *)frame->data; |
|
|
1785 | |
|
|
1786 | if (CORO_THROW) |
|
|
1787 | return 0; |
|
|
1788 | |
|
|
1789 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1790 | return 1; |
|
|
1791 | |
|
|
1792 | /* now push all results on the stack */ |
|
|
1793 | { |
|
|
1794 | dSP; |
|
|
1795 | AV *av = (AV *)SvRV (data); |
|
|
1796 | int i; |
|
|
1797 | |
|
|
1798 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1799 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1800 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1801 | |
|
|
1802 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1803 | AvFILLp (av) = -1; |
|
|
1804 | av_undef (av); |
|
|
1805 | |
|
|
1806 | PUTBACK; |
|
|
1807 | } |
|
|
1808 | |
|
|
1809 | return 0; |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | static void |
|
|
1813 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1814 | { |
|
|
1815 | SV *cb; |
|
|
1816 | |
|
|
1817 | if (items) |
|
|
1818 | cb = arg [0]; |
|
|
1819 | else |
|
|
1820 | { |
|
|
1821 | struct coro *coro = SvSTATE_current; |
|
|
1822 | |
|
|
1823 | if (!coro->rouse_cb) |
|
|
1824 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1825 | |
|
|
1826 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1827 | coro->rouse_cb = 0; |
|
|
1828 | } |
|
|
1829 | |
|
|
1830 | if (!SvROK (cb) |
|
|
1831 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1832 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1833 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1834 | |
|
|
1835 | { |
|
|
1836 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1837 | SV *data = (SV *)GENSUB_ARG; |
|
|
1838 | |
|
|
1839 | frame->data = (void *)data; |
|
|
1840 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
1841 | frame->check = slf_check_rouse_wait; |
|
|
1842 | } |
|
|
1843 | } |
|
|
1844 | |
|
|
1845 | static SV * |
|
|
1846 | coro_new_rouse_cb (pTHX) |
|
|
1847 | { |
|
|
1848 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1849 | struct coro *coro = SvSTATE_hv (hv); |
|
|
1850 | SV *data = newRV_inc ((SV *)hv); |
|
|
1851 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
1852 | |
|
|
1853 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
1854 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
1855 | |
|
|
1856 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1857 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
1858 | |
|
|
1859 | return cb; |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | /*****************************************************************************/ |
|
|
1863 | /* schedule-like-function opcode (SLF) */ |
|
|
1864 | |
|
|
1865 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1866 | static const CV *slf_cv; |
|
|
1867 | static SV **slf_argv; |
|
|
1868 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1869 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1870 | |
|
|
1871 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1872 | /* recreate the stack frame as perl will on following calls */ |
|
|
1873 | /* since entersub cleared the stack */ |
|
|
1874 | static OP * |
|
|
1875 | pp_restore (pTHX) |
|
|
1876 | { |
|
|
1877 | int i; |
|
|
1878 | SV **SP = PL_stack_base + slf_ax; |
|
|
1879 | |
|
|
1880 | PUSHMARK (SP); |
|
|
1881 | |
|
|
1882 | EXTEND (SP, slf_argc + 1); |
|
|
1883 | |
|
|
1884 | for (i = 0; i < slf_argc; ++i) |
|
|
1885 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1886 | |
|
|
1887 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1888 | |
|
|
1889 | RETURNOP (slf_restore.op_first); |
|
|
1890 | } |
|
|
1891 | |
|
|
1892 | static void |
|
|
1893 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1894 | { |
|
|
1895 | SV **arg = (SV **)slf_frame.data; |
|
|
1896 | |
|
|
1897 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1898 | } |
|
|
1899 | |
|
|
1900 | static void |
|
|
1901 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1902 | { |
|
|
1903 | if (items != 2) |
|
|
1904 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1905 | |
|
|
1906 | frame->prepare = slf_prepare_transfer; |
|
|
1907 | frame->check = slf_check_nop; |
|
|
1908 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | static void |
|
|
1912 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1913 | { |
|
|
1914 | frame->prepare = prepare_schedule; |
|
|
1915 | frame->check = slf_check_nop; |
|
|
1916 | } |
|
|
1917 | |
|
|
1918 | static void |
|
|
1919 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1920 | { |
|
|
1921 | frame->prepare = prepare_cede; |
|
|
1922 | frame->check = slf_check_nop; |
|
|
1923 | } |
|
|
1924 | |
|
|
1925 | static void |
|
|
1926 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1927 | { |
|
|
1928 | frame->prepare = prepare_cede_notself; |
|
|
1929 | frame->check = slf_check_nop; |
|
|
1930 | } |
|
|
1931 | |
|
|
1932 | /* |
|
|
1933 | * these not obviously related functions are all rolled into one |
|
|
1934 | * function to increase chances that they all will call transfer with the same |
|
|
1935 | * stack offset |
|
|
1936 | * SLF stands for "schedule-like-function". |
|
|
1937 | */ |
|
|
1938 | static OP * |
|
|
1939 | pp_slf (pTHX) |
|
|
1940 | { |
|
|
1941 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1942 | |
|
|
1943 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1944 | /* the latter happens when a new coro has been started */ |
|
|
1945 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1946 | if (expect_true (!slf_frame.prepare)) |
|
|
1947 | { |
|
|
1948 | /* first iteration */ |
|
|
1949 | dSP; |
|
|
1950 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1951 | int items = SP - arg; /* args without function object */ |
|
|
1952 | SV *gv = *sp; |
|
|
1953 | |
|
|
1954 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1955 | /* for us, divert to the real entersub */ |
|
|
1956 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1957 | || !GvCV (gv) |
|
|
1958 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1959 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1960 | |
|
|
1961 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1962 | { |
|
|
1963 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1964 | AV *av = GvAV (PL_defgv); |
|
|
1965 | arg = AvARRAY (av); |
|
|
1966 | items = AvFILLp (av) + 1; |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1970 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1971 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1972 | |
|
|
1973 | /* pop args */ |
|
|
1974 | SP = PL_stack_base + POPMARK; |
|
|
1975 | |
|
|
1976 | PUTBACK; |
|
|
1977 | } |
|
|
1978 | |
|
|
1979 | /* now that we have a slf_frame, interpret it! */ |
|
|
1980 | /* we use a callback system not to make the code needlessly */ |
|
|
1981 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1982 | |
|
|
1983 | do |
|
|
1984 | { |
|
|
1985 | struct coro_transfer_args ta; |
|
|
1986 | |
|
|
1987 | slf_frame.prepare (aTHX_ &ta); |
|
|
1988 | TRANSFER (ta, 0); |
|
|
1989 | |
|
|
1990 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1991 | } |
|
|
1992 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1993 | |
|
|
1994 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1995 | |
|
|
1996 | /* exception handling */ |
|
|
1997 | if (expect_false (CORO_THROW)) |
|
|
1998 | { |
|
|
1999 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2000 | |
|
|
2001 | CORO_THROW = 0; |
|
|
2002 | sv_setsv (ERRSV, exception); |
|
|
2003 | croak (0); |
|
|
2004 | } |
|
|
2005 | |
|
|
2006 | /* return value handling - mostly like entersub */ |
|
|
2007 | /* make sure we put something on the stack in scalar context */ |
|
|
2008 | if (GIMME_V == G_SCALAR) |
|
|
2009 | { |
|
|
2010 | dSP; |
|
|
2011 | SV **bot = PL_stack_base + checkmark; |
|
|
2012 | |
|
|
2013 | if (sp == bot) /* too few, push undef */ |
|
|
2014 | bot [1] = &PL_sv_undef; |
|
|
2015 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2016 | bot [1] = *sp; |
|
|
2017 | |
|
|
2018 | SP = bot + 1; |
|
|
2019 | |
|
|
2020 | PUTBACK; |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | return NORMAL; |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | static void |
|
|
2027 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2028 | { |
|
|
2029 | int i; |
|
|
2030 | SV **arg = PL_stack_base + ax; |
|
|
2031 | int items = PL_stack_sp - arg + 1; |
|
|
2032 | |
|
|
2033 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2034 | |
|
|
2035 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2036 | && PL_op->op_ppaddr != pp_slf) |
|
|
2037 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2038 | |
|
|
2039 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2040 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2041 | slf_cv = cv; |
|
|
2042 | |
|
|
2043 | /* we patch the op, and then re-run the whole call */ |
|
|
2044 | /* we have to put the same argument on the stack for this to work */ |
|
|
2045 | /* and this will be done by pp_restore */ |
|
|
2046 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2047 | slf_restore.op_type = OP_CUSTOM; |
|
|
2048 | slf_restore.op_ppaddr = pp_restore; |
|
|
2049 | slf_restore.op_first = PL_op; |
|
|
2050 | |
|
|
2051 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2052 | |
|
|
2053 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2054 | { |
|
|
2055 | if (items > slf_arga) |
|
|
2056 | { |
|
|
2057 | slf_arga = items; |
|
|
2058 | free (slf_argv); |
|
|
2059 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2060 | } |
|
|
2061 | |
|
|
2062 | slf_argc = items; |
|
|
2063 | |
|
|
2064 | for (i = 0; i < items; ++i) |
|
|
2065 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2066 | } |
|
|
2067 | else |
|
|
2068 | slf_argc = 0; |
|
|
2069 | |
|
|
2070 | PL_op->op_ppaddr = pp_slf; |
|
|
2071 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2072 | |
|
|
2073 | PL_op = (OP *)&slf_restore; |
1692 | } |
2074 | } |
1693 | |
2075 | |
1694 | /*****************************************************************************/ |
2076 | /*****************************************************************************/ |
1695 | /* PerlIO::cede */ |
2077 | /* PerlIO::cede */ |
1696 | |
2078 | |
… | |
… | |
1765 | PerlIOBuf_get_cnt, |
2147 | PerlIOBuf_get_cnt, |
1766 | PerlIOBuf_set_ptrcnt, |
2148 | PerlIOBuf_set_ptrcnt, |
1767 | }; |
2149 | }; |
1768 | |
2150 | |
1769 | /*****************************************************************************/ |
2151 | /*****************************************************************************/ |
|
|
2152 | /* Coro::Semaphore & Coro::Signal */ |
1770 | |
2153 | |
1771 | static const CV *slf_cv; /* for quick consistency check */ |
|
|
1772 | |
|
|
1773 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1774 | static SV *slf_arg0; |
|
|
1775 | static SV *slf_arg1; |
|
|
1776 | static SV *slf_arg2; |
|
|
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 * |
2154 | static SV * |
1782 | pp_restore (pTHX) |
2155 | coro_waitarray_new (pTHX_ int count) |
1783 | { |
2156 | { |
1784 | dSP; |
2157 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2158 | AV *av = newAV (); |
|
|
2159 | SV **ary; |
1785 | |
2160 | |
1786 | PUSHMARK (SP); |
2161 | /* unfortunately, building manually saves memory */ |
|
|
2162 | Newx (ary, 2, SV *); |
|
|
2163 | AvALLOC (av) = ary; |
|
|
2164 | /*AvARRAY (av) = ary;*/ |
|
|
2165 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2166 | AvMAX (av) = 1; |
|
|
2167 | AvFILLp (av) = 0; |
|
|
2168 | ary [0] = newSViv (count); |
1787 | |
2169 | |
1788 | EXTEND (SP, 3); |
2170 | return newRV_noinc ((SV *)av); |
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 | } |
2171 | } |
1796 | |
2172 | |
1797 | static void |
2173 | /* semaphore */ |
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 | PUTBACK; |
|
|
1903 | |
|
|
1904 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1905 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1906 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1907 | |
|
|
1908 | /* pop args */ |
|
|
1909 | SP = PL_stack_base + POPMARK; |
|
|
1910 | |
|
|
1911 | PUTBACK; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | /* now that we have a slf_frame, interpret it! */ |
|
|
1915 | /* we use a callback system not to make the code needlessly */ |
|
|
1916 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1917 | |
|
|
1918 | do |
|
|
1919 | { |
|
|
1920 | struct coro_transfer_args ta; |
|
|
1921 | |
|
|
1922 | slf_frame.prepare (aTHX_ &ta); |
|
|
1923 | TRANSFER (ta, 0); |
|
|
1924 | |
|
|
1925 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1926 | } |
|
|
1927 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1928 | |
|
|
1929 | { |
|
|
1930 | dSP; |
|
|
1931 | SV **bot = PL_stack_base + checkmark; |
|
|
1932 | int gimme = GIMME_V; |
|
|
1933 | |
|
|
1934 | slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */ |
|
|
1935 | |
|
|
1936 | /* make sure we put something on the stack in scalar context */ |
|
|
1937 | if (gimme == G_SCALAR) |
|
|
1938 | { |
|
|
1939 | if (sp == bot) |
|
|
1940 | XPUSHs (&PL_sv_undef); |
|
|
1941 | |
|
|
1942 | SP = bot + 1; |
|
|
1943 | } |
|
|
1944 | |
|
|
1945 | PUTBACK; |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | { |
|
|
1949 | struct coro *coro = SvSTATE_current; |
|
|
1950 | |
|
|
1951 | if (expect_false (coro->throw)) |
|
|
1952 | { |
|
|
1953 | SV *exception = sv_2mortal (coro->throw); |
|
|
1954 | |
|
|
1955 | coro->throw = 0; |
|
|
1956 | sv_setsv (ERRSV, exception); |
|
|
1957 | croak (0); |
|
|
1958 | } |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | return NORMAL; |
|
|
1962 | } |
|
|
1963 | |
|
|
1964 | static void |
|
|
1965 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
|
|
1966 | { |
|
|
1967 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1968 | |
|
|
1969 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1970 | && PL_op->op_ppaddr != pp_slf) |
|
|
1971 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1972 | |
|
|
1973 | if (items > 3) |
|
|
1974 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1975 | |
|
|
1976 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1977 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1978 | slf_cv = cv; |
|
|
1979 | |
|
|
1980 | /* we patch the op, and then re-run the whole call */ |
|
|
1981 | /* we have to put the same argument on the stack for this to work */ |
|
|
1982 | /* and this will be done by pp_restore */ |
|
|
1983 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1984 | slf_restore.op_type = OP_CUSTOM; |
|
|
1985 | slf_restore.op_ppaddr = pp_restore; |
|
|
1986 | slf_restore.op_first = PL_op; |
|
|
1987 | |
|
|
1988 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1989 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1990 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1991 | |
|
|
1992 | PL_op->op_ppaddr = pp_slf; |
|
|
1993 | |
|
|
1994 | PL_op = (OP *)&slf_restore; |
|
|
1995 | } |
|
|
1996 | |
|
|
1997 | /*****************************************************************************/ |
|
|
1998 | |
2174 | |
1999 | static void |
2175 | static void |
2000 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2176 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2001 | { |
2177 | { |
2002 | SV *count_sv = AvARRAY (av)[0]; |
2178 | SV *count_sv = AvARRAY (av)[0]; |
… | |
… | |
2014 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2190 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2015 | AvARRAY (av)[1] = count_sv; |
2191 | AvARRAY (av)[1] = count_sv; |
2016 | cb = av_shift (av); |
2192 | cb = av_shift (av); |
2017 | |
2193 | |
2018 | if (SvOBJECT (cb)) |
2194 | if (SvOBJECT (cb)) |
|
|
2195 | { |
2019 | api_ready (aTHX_ cb); |
2196 | api_ready (aTHX_ cb); |
2020 | else |
2197 | --count; |
2021 | croak ("callbacks not yet supported"); |
2198 | } |
|
|
2199 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2200 | { |
|
|
2201 | dSP; |
|
|
2202 | PUSHMARK (SP); |
|
|
2203 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2204 | PUTBACK; |
|
|
2205 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2206 | } |
2022 | |
2207 | |
2023 | SvREFCNT_dec (cb); |
2208 | SvREFCNT_dec (cb); |
2024 | |
|
|
2025 | --count; |
|
|
2026 | } |
2209 | } |
2027 | } |
2210 | } |
2028 | |
2211 | |
2029 | static void |
2212 | static void |
2030 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2213 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
… | |
… | |
2032 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2215 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2033 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2216 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2034 | } |
2217 | } |
2035 | |
2218 | |
2036 | static int |
2219 | static int |
2037 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2220 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2038 | { |
2221 | { |
2039 | AV *av = (AV *)frame->data; |
2222 | AV *av = (AV *)frame->data; |
2040 | SV *count_sv = AvARRAY (av)[0]; |
2223 | SV *count_sv = AvARRAY (av)[0]; |
2041 | |
2224 | |
|
|
2225 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2226 | if (CORO_THROW) |
|
|
2227 | return 0; |
2042 | if (SvIVX (count_sv) > 0) |
2228 | else if (SvIVX (count_sv) > 0) |
2043 | { |
2229 | { |
2044 | SvSTATE_current->on_destroy = 0; |
2230 | SvSTATE_current->on_destroy = 0; |
|
|
2231 | |
|
|
2232 | if (acquire) |
2045 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2233 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2234 | else |
|
|
2235 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2236 | |
2046 | return 0; |
2237 | return 0; |
2047 | } |
2238 | } |
2048 | else |
2239 | else |
2049 | { |
2240 | { |
2050 | int i; |
2241 | int i; |
… | |
… | |
2059 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2250 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2060 | return 1; |
2251 | return 1; |
2061 | } |
2252 | } |
2062 | } |
2253 | } |
2063 | |
2254 | |
2064 | static void |
2255 | static int |
|
|
2256 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2257 | { |
|
|
2258 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | static int |
|
|
2262 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2263 | { |
|
|
2264 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | static void |
2065 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2268 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2066 | { |
2269 | { |
2067 | AV *av = (AV *)SvRV (arg [0]); |
2270 | AV *av = (AV *)SvRV (arg [0]); |
2068 | |
2271 | |
2069 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2272 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2070 | { |
2273 | { |
2071 | frame->data = (void *)av; |
2274 | frame->data = (void *)av; |
2072 | frame->prepare = prepare_nop; |
2275 | frame->prepare = prepare_nop; |
2073 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2074 | } |
2276 | } |
2075 | else |
2277 | else |
2076 | { |
2278 | { |
2077 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2279 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2078 | |
2280 | |
2079 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2281 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2080 | frame->prepare = prepare_schedule; |
2282 | frame->prepare = prepare_schedule; |
2081 | |
2283 | |
2082 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2284 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2083 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2285 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2084 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2085 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2286 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2086 | } |
2287 | } |
|
|
2288 | } |
2087 | |
2289 | |
|
|
2290 | static void |
|
|
2291 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2292 | { |
|
|
2293 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
2088 | frame->check = slf_check_semaphore_down; |
2294 | frame->check = slf_check_semaphore_down; |
|
|
2295 | } |
2089 | |
2296 | |
|
|
2297 | static void |
|
|
2298 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2299 | { |
|
|
2300 | if (items >= 2) |
|
|
2301 | { |
|
|
2302 | /* callback form */ |
|
|
2303 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2304 | CV *cb_cv = coro_sv_2cv (arg [1]); |
|
|
2305 | |
|
|
2306 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2307 | |
|
|
2308 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2309 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2310 | |
|
|
2311 | frame->prepare = prepare_nop; |
|
|
2312 | frame->check = slf_check_nop; |
|
|
2313 | } |
|
|
2314 | else |
|
|
2315 | { |
|
|
2316 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2317 | frame->check = slf_check_semaphore_wait; |
|
|
2318 | } |
|
|
2319 | } |
|
|
2320 | |
|
|
2321 | /* signal */ |
|
|
2322 | |
|
|
2323 | static void |
|
|
2324 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2325 | { |
|
|
2326 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2327 | |
|
|
2328 | /* now signal count waiters */ |
|
|
2329 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2330 | { |
|
|
2331 | SV *cb; |
|
|
2332 | |
|
|
2333 | /* swap first two elements so we can shift a waiter */ |
|
|
2334 | cb = AvARRAY (av)[0]; |
|
|
2335 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2336 | AvARRAY (av)[1] = cb; |
|
|
2337 | |
|
|
2338 | cb = av_shift (av); |
|
|
2339 | |
|
|
2340 | api_ready (aTHX_ cb); |
|
|
2341 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2342 | SvREFCNT_dec (cb); |
|
|
2343 | |
|
|
2344 | --count; |
|
|
2345 | } |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | static int |
|
|
2349 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2350 | { |
|
|
2351 | /* if we are about to throw, also stop waiting */ |
|
|
2352 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2353 | } |
|
|
2354 | |
|
|
2355 | static void |
|
|
2356 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2357 | { |
|
|
2358 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2359 | |
|
|
2360 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2361 | { |
|
|
2362 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2363 | frame->prepare = prepare_nop; |
|
|
2364 | frame->check = slf_check_nop; |
|
|
2365 | } |
|
|
2366 | else |
|
|
2367 | { |
|
|
2368 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2369 | |
|
|
2370 | av_push (av, waiter); |
|
|
2371 | |
|
|
2372 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2373 | frame->prepare = prepare_schedule; |
|
|
2374 | frame->check = slf_check_signal_wait; |
|
|
2375 | } |
2090 | } |
2376 | } |
2091 | |
2377 | |
2092 | /*****************************************************************************/ |
2378 | /*****************************************************************************/ |
|
|
2379 | /* Coro::AIO */ |
2093 | |
2380 | |
2094 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2381 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
2095 | |
2382 | |
2096 | /* create a closure from XS, returns a code reference */ |
2383 | /* helper storage struct */ |
2097 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2384 | struct io_state |
2098 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2099 | static SV * |
|
|
2100 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2101 | { |
2385 | { |
2102 | CV *cv = (CV *)NEWSV (0, 0); |
2386 | int errorno; |
|
|
2387 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2388 | int laststatval; |
|
|
2389 | Stat_t statcache; |
|
|
2390 | }; |
2103 | |
2391 | |
|
|
2392 | static void |
|
|
2393 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2394 | { |
|
|
2395 | dXSARGS; |
|
|
2396 | AV *state = (AV *)GENSUB_ARG; |
|
|
2397 | SV *coro = av_pop (state); |
|
|
2398 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2399 | |
|
|
2400 | av_extend (state, items); |
|
|
2401 | |
2104 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2402 | sv_upgrade (data_sv, SVt_PV); |
|
|
2403 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2404 | SvPOK_only (data_sv); |
2105 | |
2405 | |
2106 | CvANON_on (cv); |
2406 | { |
2107 | CvISXSUB_on (cv); |
2407 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
2108 | CvXSUB (cv) = xsub; |
|
|
2109 | GENSUB_ARG = arg; |
|
|
2110 | |
2408 | |
2111 | return newRV_noinc ((SV *)cv); |
2409 | data->errorno = errno; |
|
|
2410 | data->laststype = PL_laststype; |
|
|
2411 | data->laststatval = PL_laststatval; |
|
|
2412 | data->statcache = PL_statcache; |
|
|
2413 | } |
|
|
2414 | |
|
|
2415 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2416 | { |
|
|
2417 | int i; |
|
|
2418 | |
|
|
2419 | for (i = 0; i < items; ++i) |
|
|
2420 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2421 | } |
|
|
2422 | |
|
|
2423 | av_push (state, data_sv); |
|
|
2424 | |
|
|
2425 | api_ready (aTHX_ coro); |
|
|
2426 | SvREFCNT_dec (coro); |
|
|
2427 | SvREFCNT_dec ((AV *)state); |
|
|
2428 | } |
|
|
2429 | |
|
|
2430 | static int |
|
|
2431 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2432 | { |
|
|
2433 | AV *state = (AV *)frame->data; |
|
|
2434 | |
|
|
2435 | /* if we are about to throw, return early */ |
|
|
2436 | /* this does not cancel the aio request, but at least */ |
|
|
2437 | /* it quickly returns */ |
|
|
2438 | if (CORO_THROW) |
|
|
2439 | return 0; |
|
|
2440 | |
|
|
2441 | /* one element that is an RV? repeat! */ |
|
|
2442 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2443 | return 1; |
|
|
2444 | |
|
|
2445 | /* restore status */ |
|
|
2446 | { |
|
|
2447 | SV *data_sv = av_pop (state); |
|
|
2448 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2449 | |
|
|
2450 | errno = data->errorno; |
|
|
2451 | PL_laststype = data->laststype; |
|
|
2452 | PL_laststatval = data->laststatval; |
|
|
2453 | PL_statcache = data->statcache; |
|
|
2454 | |
|
|
2455 | SvREFCNT_dec (data_sv); |
|
|
2456 | } |
|
|
2457 | |
|
|
2458 | /* push result values */ |
|
|
2459 | { |
|
|
2460 | dSP; |
|
|
2461 | int i; |
|
|
2462 | |
|
|
2463 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2464 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2465 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2466 | |
|
|
2467 | PUTBACK; |
|
|
2468 | } |
|
|
2469 | |
|
|
2470 | return 0; |
|
|
2471 | } |
|
|
2472 | |
|
|
2473 | static void |
|
|
2474 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2475 | { |
|
|
2476 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2477 | SV *coro_hv = SvRV (coro_current); |
|
|
2478 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2479 | |
|
|
2480 | /* put our coroutine id on the state arg */ |
|
|
2481 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2482 | |
|
|
2483 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2484 | if (coro->prio) |
|
|
2485 | { |
|
|
2486 | dSP; |
|
|
2487 | |
|
|
2488 | static SV *prio_cv; |
|
|
2489 | static SV *prio_sv; |
|
|
2490 | |
|
|
2491 | if (expect_false (!prio_cv)) |
|
|
2492 | { |
|
|
2493 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2494 | prio_sv = newSViv (0); |
|
|
2495 | } |
|
|
2496 | |
|
|
2497 | PUSHMARK (SP); |
|
|
2498 | sv_setiv (prio_sv, coro->prio); |
|
|
2499 | XPUSHs (prio_sv); |
|
|
2500 | |
|
|
2501 | PUTBACK; |
|
|
2502 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2503 | } |
|
|
2504 | |
|
|
2505 | /* now call the original request */ |
|
|
2506 | { |
|
|
2507 | dSP; |
|
|
2508 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2509 | int i; |
|
|
2510 | |
|
|
2511 | PUSHMARK (SP); |
|
|
2512 | |
|
|
2513 | /* first push all args to the stack */ |
|
|
2514 | EXTEND (SP, items + 1); |
|
|
2515 | |
|
|
2516 | for (i = 0; i < items; ++i) |
|
|
2517 | PUSHs (arg [i]); |
|
|
2518 | |
|
|
2519 | /* now push the callback closure */ |
|
|
2520 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2521 | |
|
|
2522 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2523 | PUTBACK; |
|
|
2524 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2528 | frame->data = (void *)state; |
|
|
2529 | frame->prepare = prepare_schedule; |
|
|
2530 | frame->check = slf_check_aio_req; |
|
|
2531 | } |
|
|
2532 | |
|
|
2533 | static void |
|
|
2534 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2535 | { |
|
|
2536 | dXSARGS; |
|
|
2537 | |
|
|
2538 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2539 | |
|
|
2540 | XSRETURN_EMPTY; |
2112 | } |
2541 | } |
2113 | |
2542 | |
2114 | /*****************************************************************************/ |
2543 | /*****************************************************************************/ |
2115 | |
2544 | |
2116 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2545 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
… | |
… | |
2186 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2615 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2187 | } |
2616 | } |
2188 | |
2617 | |
2189 | SV * |
2618 | SV * |
2190 | new (char *klass, ...) |
2619 | new (char *klass, ...) |
|
|
2620 | ALIAS: |
|
|
2621 | Coro::new = 1 |
2191 | CODE: |
2622 | CODE: |
2192 | { |
2623 | { |
2193 | struct coro *coro; |
2624 | struct coro *coro; |
2194 | MAGIC *mg; |
2625 | MAGIC *mg; |
2195 | HV *hv; |
2626 | HV *hv; |
|
|
2627 | CV *cb; |
2196 | int i; |
2628 | int i; |
|
|
2629 | |
|
|
2630 | if (items > 1) |
|
|
2631 | { |
|
|
2632 | cb = coro_sv_2cv (ST (1)); |
|
|
2633 | |
|
|
2634 | if (!ix) |
|
|
2635 | { |
|
|
2636 | if (CvISXSUB (cb)) |
|
|
2637 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2638 | |
|
|
2639 | if (!CvROOT (cb)) |
|
|
2640 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2641 | } |
|
|
2642 | } |
2197 | |
2643 | |
2198 | Newz (0, coro, 1, struct coro); |
2644 | Newz (0, coro, 1, struct coro); |
2199 | coro->args = newAV (); |
2645 | coro->args = newAV (); |
2200 | coro->flags = CF_NEW; |
2646 | coro->flags = CF_NEW; |
2201 | |
2647 | |
… | |
… | |
2206 | coro->hv = hv = newHV (); |
2652 | coro->hv = hv = newHV (); |
2207 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2653 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2208 | mg->mg_flags |= MGf_DUP; |
2654 | mg->mg_flags |= MGf_DUP; |
2209 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2655 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2210 | |
2656 | |
|
|
2657 | if (items > 1) |
|
|
2658 | { |
2211 | av_extend (coro->args, items - 1); |
2659 | av_extend (coro->args, items - 1 + ix); |
|
|
2660 | |
|
|
2661 | if (ix) |
|
|
2662 | { |
|
|
2663 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2664 | cb = cv_coro_run; |
|
|
2665 | } |
|
|
2666 | |
|
|
2667 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2668 | |
2212 | for (i = 1; i < items; i++) |
2669 | for (i = 2; i < items; i++) |
2213 | av_push (coro->args, newSVsv (ST (i))); |
2670 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2671 | } |
2214 | } |
2672 | } |
2215 | OUTPUT: |
2673 | OUTPUT: |
2216 | RETVAL |
2674 | RETVAL |
2217 | |
|
|
2218 | void |
|
|
2219 | _set_stacklevel (...) |
|
|
2220 | CODE: |
|
|
2221 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
|
|
2222 | |
2675 | |
2223 | void |
2676 | void |
2224 | transfer (...) |
2677 | transfer (...) |
2225 | PROTOTYPE: $$ |
2678 | PROTOTYPE: $$ |
2226 | CODE: |
2679 | CODE: |
2227 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
2680 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2228 | |
2681 | |
2229 | bool |
2682 | bool |
2230 | _destroy (SV *coro_sv) |
2683 | _destroy (SV *coro_sv) |
2231 | CODE: |
2684 | CODE: |
2232 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2685 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2350 | |
2803 | |
2351 | void |
2804 | void |
2352 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2805 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2353 | PROTOTYPE: $;$ |
2806 | PROTOTYPE: $;$ |
2354 | CODE: |
2807 | CODE: |
|
|
2808 | { |
|
|
2809 | struct coro *current = SvSTATE_current; |
|
|
2810 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
2355 | SvREFCNT_dec (self->throw); |
2811 | SvREFCNT_dec (*throwp); |
2356 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2812 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2813 | } |
2357 | |
2814 | |
2358 | void |
2815 | void |
2359 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2816 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2360 | PROTOTYPE: $;$ |
2817 | PROTOTYPE: $;$ |
2361 | C_ARGS: aTHX_ coro, flags |
2818 | C_ARGS: aTHX_ coro, flags |
… | |
… | |
2410 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2867 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2411 | |
2868 | |
2412 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2869 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2413 | } |
2870 | } |
2414 | |
2871 | |
|
|
2872 | |
2415 | MODULE = Coro::State PACKAGE = Coro |
2873 | MODULE = Coro::State PACKAGE = Coro |
2416 | |
2874 | |
2417 | BOOT: |
2875 | BOOT: |
2418 | { |
2876 | { |
2419 | int i; |
2877 | int i; |
2420 | |
2878 | |
2421 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2879 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2422 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2880 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2423 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2881 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2424 | |
2882 | cv_coro_run = get_cv (aTHX_ "Coro::_terminate", GV_ADD); |
2425 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
2883 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); |
2426 | SvREADONLY_on (coro_current); |
2884 | SvREADONLY_on (coro_current); |
2427 | |
2885 | |
2428 | coro_stash = gv_stashpv ("Coro", TRUE); |
2886 | coro_stash = gv_stashpv ("Coro", TRUE); |
2429 | |
2887 | |
2430 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2888 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
… | |
… | |
2446 | coroapi.ready = api_ready; |
2904 | coroapi.ready = api_ready; |
2447 | coroapi.is_ready = api_is_ready; |
2905 | coroapi.is_ready = api_is_ready; |
2448 | coroapi.nready = coro_nready; |
2906 | coroapi.nready = coro_nready; |
2449 | coroapi.current = coro_current; |
2907 | coroapi.current = coro_current; |
2450 | |
2908 | |
2451 | GCoroAPI = &coroapi; |
2909 | /*GCoroAPI = &coroapi;*/ |
2452 | sv_setiv (sv, (IV)&coroapi); |
2910 | sv_setiv (sv, (IV)&coroapi); |
2453 | SvREADONLY_on (sv); |
2911 | SvREADONLY_on (sv); |
2454 | } |
2912 | } |
2455 | } |
2913 | } |
2456 | |
2914 | |
2457 | void |
2915 | void |
2458 | schedule (...) |
2916 | schedule (...) |
2459 | CODE: |
2917 | CODE: |
2460 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); |
2918 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
2461 | |
2919 | |
2462 | void |
2920 | void |
2463 | cede (...) |
2921 | cede (...) |
2464 | CODE: |
2922 | CODE: |
2465 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); |
2923 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
2466 | |
2924 | |
2467 | void |
2925 | void |
2468 | cede_notself (...) |
2926 | cede_notself (...) |
2469 | CODE: |
2927 | CODE: |
2470 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); |
2928 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2471 | |
2929 | |
2472 | void |
2930 | void |
2473 | _set_current (SV *current) |
2931 | _set_current (SV *current) |
2474 | PROTOTYPE: $ |
2932 | PROTOTYPE: $ |
2475 | CODE: |
2933 | CODE: |
… | |
… | |
2563 | |
3021 | |
2564 | void |
3022 | void |
2565 | _pool_2 (SV *cb) |
3023 | _pool_2 (SV *cb) |
2566 | CODE: |
3024 | CODE: |
2567 | { |
3025 | { |
2568 | struct coro *coro = SvSTATE_current; |
3026 | HV *hv = (HV *)SvRV (coro_current); |
|
|
3027 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2569 | |
3028 | |
2570 | sv_setsv (cb, &PL_sv_undef); |
3029 | sv_setsv (cb, &PL_sv_undef); |
2571 | |
3030 | |
2572 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
3031 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2573 | coro->saved_deffh = 0; |
3032 | coro->saved_deffh = 0; |
… | |
… | |
2580 | SvREFCNT_dec (old); |
3039 | SvREFCNT_dec (old); |
2581 | croak ("\3async_pool terminate\2\n"); |
3040 | croak ("\3async_pool terminate\2\n"); |
2582 | } |
3041 | } |
2583 | |
3042 | |
2584 | av_clear (GvAV (PL_defgv)); |
3043 | av_clear (GvAV (PL_defgv)); |
2585 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
3044 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2586 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
3045 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2587 | |
3046 | |
2588 | coro->prio = 0; |
3047 | coro->prio = 0; |
2589 | |
3048 | |
2590 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
3049 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2591 | api_trace (aTHX_ coro_current, 0); |
3050 | api_trace (aTHX_ coro_current, 0); |
2592 | |
3051 | |
2593 | av_push (av_async_pool, newSVsv (coro_current)); |
3052 | av_push (av_async_pool, newSVsv (coro_current)); |
2594 | } |
3053 | } |
2595 | |
3054 | |
2596 | |
3055 | SV * |
2597 | MODULE = Coro::State PACKAGE = Coro::AIO |
3056 | rouse_cb () |
|
|
3057 | PROTOTYPE: |
|
|
3058 | CODE: |
|
|
3059 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
3060 | OUTPUT: |
|
|
3061 | RETVAL |
2598 | |
3062 | |
2599 | void |
3063 | void |
2600 | _get_state (SV *self) |
3064 | rouse_wait (...) |
2601 | PROTOTYPE: $ |
3065 | PROTOTYPE: ;$ |
2602 | PPCODE: |
3066 | PPCODE: |
2603 | { |
3067 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2604 | AV *defav = GvAV (PL_defgv); |
|
|
2605 | AV *av = newAV (); |
|
|
2606 | int i; |
|
|
2607 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2608 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2609 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2610 | SvPOK_only (data_sv); |
|
|
2611 | |
|
|
2612 | data->errorno = errno; |
|
|
2613 | data->laststype = PL_laststype; |
|
|
2614 | data->laststatval = PL_laststatval; |
|
|
2615 | data->statcache = PL_statcache; |
|
|
2616 | |
|
|
2617 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2618 | |
|
|
2619 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2620 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2621 | |
|
|
2622 | av_push (av, data_sv); |
|
|
2623 | |
|
|
2624 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2625 | |
|
|
2626 | api_ready (aTHX_ self); |
|
|
2627 | } |
|
|
2628 | |
|
|
2629 | void |
|
|
2630 | _set_state (SV *state) |
|
|
2631 | PROTOTYPE: $ |
|
|
2632 | PPCODE: |
|
|
2633 | { |
|
|
2634 | AV *av = (AV *)SvRV (state); |
|
|
2635 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2636 | int i; |
|
|
2637 | |
|
|
2638 | errno = data->errorno; |
|
|
2639 | PL_laststype = data->laststype; |
|
|
2640 | PL_laststatval = data->laststatval; |
|
|
2641 | PL_statcache = data->statcache; |
|
|
2642 | |
|
|
2643 | EXTEND (SP, AvFILLp (av)); |
|
|
2644 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2645 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2646 | } |
|
|
2647 | |
|
|
2648 | |
|
|
2649 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2650 | |
|
|
2651 | BOOT: |
|
|
2652 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2653 | |
|
|
2654 | void |
|
|
2655 | _schedule (...) |
|
|
2656 | CODE: |
|
|
2657 | { |
|
|
2658 | static int incede; |
|
|
2659 | |
|
|
2660 | api_cede_notself (aTHX); |
|
|
2661 | |
|
|
2662 | ++incede; |
|
|
2663 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2664 | ; |
|
|
2665 | |
|
|
2666 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2667 | if (coro_nready >= incede) |
|
|
2668 | { |
|
|
2669 | PUSHMARK (SP); |
|
|
2670 | PUTBACK; |
|
|
2671 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2672 | SPAGAIN; |
|
|
2673 | } |
|
|
2674 | |
|
|
2675 | --incede; |
|
|
2676 | } |
|
|
2677 | |
3068 | |
2678 | |
3069 | |
2679 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3070 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2680 | |
3071 | |
2681 | BOOT: |
3072 | BOOT: |
2682 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3073 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2683 | |
3074 | |
|
|
3075 | |
2684 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
3076 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2685 | |
3077 | |
2686 | SV * |
3078 | SV * |
2687 | new (SV *klass, SV *count_ = 0) |
3079 | new (SV *klass, SV *count = 0) |
2688 | CODE: |
3080 | CODE: |
2689 | { |
3081 | RETVAL = sv_bless ( |
2690 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
3082 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
2691 | AV *av = newAV (); |
3083 | GvSTASH (CvGV (cv)) |
2692 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
3084 | ); |
2693 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
3085 | OUTPUT: |
2694 | } |
3086 | RETVAL |
|
|
3087 | |
|
|
3088 | # helper for Coro::Channel |
|
|
3089 | SV * |
|
|
3090 | _alloc (int count) |
|
|
3091 | CODE: |
|
|
3092 | RETVAL = coro_waitarray_new (aTHX_ count); |
2695 | OUTPUT: |
3093 | OUTPUT: |
2696 | RETVAL |
3094 | RETVAL |
2697 | |
3095 | |
2698 | SV * |
3096 | SV * |
2699 | count (SV *self) |
3097 | count (SV *self) |
… | |
… | |
2708 | adjust = 1 |
3106 | adjust = 1 |
2709 | CODE: |
3107 | CODE: |
2710 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
3108 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2711 | |
3109 | |
2712 | void |
3110 | void |
2713 | down (SV *self) |
3111 | down (...) |
2714 | CODE: |
3112 | CODE: |
2715 | api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); |
3113 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3114 | |
|
|
3115 | void |
|
|
3116 | wait (...) |
|
|
3117 | CODE: |
|
|
3118 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
2716 | |
3119 | |
2717 | void |
3120 | void |
2718 | try (SV *self) |
3121 | try (SV *self) |
2719 | PPCODE: |
3122 | PPCODE: |
2720 | { |
3123 | { |
… | |
… | |
2732 | XSRETURN_NO; |
3135 | XSRETURN_NO; |
2733 | } |
3136 | } |
2734 | |
3137 | |
2735 | void |
3138 | void |
2736 | waiters (SV *self) |
3139 | waiters (SV *self) |
2737 | CODE: |
3140 | PPCODE: |
2738 | { |
3141 | { |
2739 | AV *av = (AV *)SvRV (self); |
3142 | AV *av = (AV *)SvRV (self); |
|
|
3143 | int wcount = AvFILLp (av) + 1 - 1; |
2740 | |
3144 | |
2741 | if (GIMME_V == G_SCALAR) |
3145 | if (GIMME_V == G_SCALAR) |
2742 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
3146 | XPUSHs (sv_2mortal (newSViv (wcount))); |
2743 | else |
3147 | else |
2744 | { |
3148 | { |
2745 | int i; |
3149 | int i; |
2746 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
3150 | EXTEND (SP, wcount); |
2747 | for (i = 1; i <= AvFILLp (av); ++i) |
3151 | for (i = 1; i <= wcount; ++i) |
2748 | PUSHs (newSVsv (AvARRAY (av)[i])); |
3152 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
2749 | } |
3153 | } |
2750 | } |
3154 | } |
2751 | |
3155 | |
|
|
3156 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3157 | |
|
|
3158 | SV * |
|
|
3159 | new (SV *klass) |
|
|
3160 | CODE: |
|
|
3161 | RETVAL = sv_bless ( |
|
|
3162 | coro_waitarray_new (aTHX_ 0), |
|
|
3163 | GvSTASH (CvGV (cv)) |
|
|
3164 | ); |
|
|
3165 | OUTPUT: |
|
|
3166 | RETVAL |
|
|
3167 | |
|
|
3168 | void |
|
|
3169 | wait (...) |
|
|
3170 | CODE: |
|
|
3171 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3172 | |
|
|
3173 | void |
|
|
3174 | broadcast (SV *self) |
|
|
3175 | CODE: |
|
|
3176 | { |
|
|
3177 | AV *av = (AV *)SvRV (self); |
|
|
3178 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3179 | } |
|
|
3180 | |
|
|
3181 | void |
|
|
3182 | send (SV *self) |
|
|
3183 | CODE: |
|
|
3184 | { |
|
|
3185 | AV *av = (AV *)SvRV (self); |
|
|
3186 | |
|
|
3187 | if (AvFILLp (av)) |
|
|
3188 | coro_signal_wake (aTHX_ av, 1); |
|
|
3189 | else |
|
|
3190 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3191 | } |
|
|
3192 | |
|
|
3193 | IV |
|
|
3194 | awaited (SV *self) |
|
|
3195 | CODE: |
|
|
3196 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3197 | OUTPUT: |
|
|
3198 | RETVAL |
|
|
3199 | |
|
|
3200 | |
|
|
3201 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3202 | |
|
|
3203 | BOOT: |
|
|
3204 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3205 | |
|
|
3206 | void |
|
|
3207 | _schedule (...) |
|
|
3208 | CODE: |
|
|
3209 | { |
|
|
3210 | static int incede; |
|
|
3211 | |
|
|
3212 | api_cede_notself (aTHX); |
|
|
3213 | |
|
|
3214 | ++incede; |
|
|
3215 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3216 | ; |
|
|
3217 | |
|
|
3218 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3219 | if (coro_nready >= incede) |
|
|
3220 | { |
|
|
3221 | PUSHMARK (SP); |
|
|
3222 | PUTBACK; |
|
|
3223 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3224 | } |
|
|
3225 | |
|
|
3226 | --incede; |
|
|
3227 | } |
|
|
3228 | |
|
|
3229 | |
|
|
3230 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3231 | |
|
|
3232 | void |
|
|
3233 | _register (char *target, char *proto, SV *req) |
|
|
3234 | CODE: |
|
|
3235 | { |
|
|
3236 | CV *req_cv = coro_sv_2cv (req); |
|
|
3237 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3238 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3239 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3240 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3241 | } |
|
|
3242 | |