… | |
… | |
46 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
47 | #endif |
47 | #endif |
48 | |
48 | |
49 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
50 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
|
|
52 | #else |
|
|
53 | # define REGISTER_STACK(cctx,start,end) |
|
|
54 | #endif |
51 | #endif |
55 | |
52 | |
56 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
57 | static int cctx_max_idle = 4; |
54 | static int cctx_max_idle = 4; |
58 | |
55 | |
… | |
… | |
98 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
99 | #endif |
96 | #endif |
100 | #ifndef newSV |
97 | #ifndef newSV |
101 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
102 | #endif |
99 | #endif |
|
|
100 | #ifndef CvISXSUB_on |
|
|
101 | # define CvISXSUB_on(cv) (void)cv |
|
|
102 | #endif |
103 | |
103 | |
104 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
105 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
107 | #endif |
107 | #endif |
… | |
… | |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
120 | #endif |
120 | #endif |
121 | |
121 | |
122 | /* 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 |
123 | * portable way as possible. */ |
123 | * portable way as possible. */ |
|
|
124 | #if __GNUC__ >= 4 |
|
|
125 | # define dSTACKLEVEL int stacklevel_dummy |
|
|
126 | # define STACKLEVEL __builtin_frame_address (0) |
|
|
127 | #else |
124 | #define dSTACKLEVEL volatile char stacklevel |
128 | # define dSTACKLEVEL volatile void *stacklevel |
125 | #define STACKLEVEL ((void *)&stacklevel) |
129 | # define STACKLEVEL ((void *)&stacklevel) |
|
|
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 |
130 | # define attribute(x) __attribute__(x) |
135 | # define attribute(x) __attribute__(x) |
131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
|
|
132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
136 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
137 | # define INLINE static inline |
133 | #else |
138 | #else |
134 | # define attribute(x) |
139 | # define attribute(x) |
135 | # define BARRIER |
|
|
136 | # define expect(expr,value) (expr) |
140 | # define expect(expr,value) (expr) |
|
|
141 | # define INLINE static |
137 | #endif |
142 | #endif |
138 | |
143 | |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
144 | #define expect_false(expr) expect ((expr) != 0, 0) |
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 | static perl_mutex coro_lock; |
153 | # if CORO_PTHREAD |
148 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
154 | static void *coro_thx; |
149 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
|
150 | #else |
|
|
151 | # define LOCK (void)0 |
|
|
152 | # define UNLOCK (void)0 |
|
|
153 | #endif |
155 | # endif |
154 | |
156 | #endif |
155 | /* helper storage struct for Coro::AIO */ |
|
|
156 | struct io_state |
|
|
157 | { |
|
|
158 | AV *res; |
|
|
159 | int errorno; |
|
|
160 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
161 | int laststatval; |
|
|
162 | Stat_t statcache; |
|
|
163 | }; |
|
|
164 | |
157 | |
165 | 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); |
166 | |
163 | |
167 | static U32 cctx_gen; |
164 | static U32 cctx_gen; |
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
169 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
… | |
… | |
197 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
198 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
199 | }; |
196 | }; |
200 | |
197 | |
201 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
202 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
|
|
200 | { |
203 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
204 | |
202 | |
205 | /* the stack */ |
203 | /* the stack */ |
206 | void *sptr; |
204 | void *sptr; |
207 | size_t ssize; |
205 | size_t ssize; |
… | |
… | |
225 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
226 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
227 | }; |
225 | }; |
228 | |
226 | |
229 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
230 | typedef struct { |
228 | typedef struct |
|
|
229 | { |
231 | SV *defsv; |
230 | SV *defsv; |
232 | AV *defav; |
231 | AV *defav; |
233 | SV *errsv; |
232 | SV *errsv; |
234 | SV *irsgv; |
233 | SV *irsgv; |
235 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
… | |
… | |
239 | |
238 | |
240 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
239 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
241 | |
240 | |
242 | /* this is a structure representing a perl-level coroutine */ |
241 | /* this is a structure representing a perl-level coroutine */ |
243 | struct coro { |
242 | struct coro { |
244 | /* the c coroutine allocated to this perl coroutine, if any */ |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
245 | coro_cctx *cctx; |
244 | coro_cctx *cctx; |
246 | |
245 | |
247 | /* process data */ |
246 | /* state data */ |
|
|
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 | AV *args; /* data associated with this coroutine (initial args) */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
253 | int flags; /* CF_ flags */ |
253 | int flags; /* CF_ flags */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
255 | void (*on_destroy)(pTHX_ struct coro *coro); |
255 | |
256 | |
256 | /* statistics */ |
257 | /* statistics */ |
257 | int usecount; /* number of transfers to this coro */ |
258 | int usecount; /* number of transfers to this coro */ |
258 | |
259 | |
259 | /* coro process data */ |
260 | /* coro process data */ |
260 | int prio; |
261 | int prio; |
261 | SV *throw; /* exception to be thrown */ |
262 | SV *except; /* exception to be thrown */ |
262 | |
263 | |
263 | /* async_pool */ |
264 | /* async_pool */ |
264 | SV *saved_deffh; |
265 | SV *saved_deffh; |
265 | |
266 | |
266 | /* linked list */ |
267 | /* linked list */ |
267 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
268 | }; |
269 | }; |
269 | |
270 | |
270 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State_or_hashref; |
272 | typedef struct coro *Coro__State_or_hashref; |
|
|
273 | |
|
|
274 | /* the following variables are effectively part of the perl context */ |
|
|
275 | /* and get copied between struct coro and these variables */ |
|
|
276 | /* the mainr easonw e don't support windows process emulation */ |
|
|
277 | static struct CoroSLF slf_frame; /* the current slf frame */ |
272 | |
278 | |
273 | /** Coro ********************************************************************/ |
279 | /** Coro ********************************************************************/ |
274 | |
280 | |
275 | #define PRIO_MAX 3 |
281 | #define PRIO_MAX 3 |
276 | #define PRIO_HIGH 1 |
282 | #define PRIO_HIGH 1 |
… | |
… | |
280 | #define PRIO_MIN -4 |
286 | #define PRIO_MIN -4 |
281 | |
287 | |
282 | /* for Coro.pm */ |
288 | /* for Coro.pm */ |
283 | static SV *coro_current; |
289 | static SV *coro_current; |
284 | static SV *coro_readyhook; |
290 | static SV *coro_readyhook; |
285 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
291 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
286 | static int coro_nready; |
|
|
287 | static struct coro *coro_first; |
292 | static struct coro *coro_first; |
|
|
293 | #define coro_nready coroapi.nready |
288 | |
294 | |
289 | /** lowlevel stuff **********************************************************/ |
295 | /** lowlevel stuff **********************************************************/ |
290 | |
296 | |
291 | static SV * |
297 | static SV * |
292 | coro_get_sv (pTHX_ const char *name, int create) |
298 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
377 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
383 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
378 | |
384 | |
379 | return 0; |
385 | return 0; |
380 | } |
386 | } |
381 | |
387 | |
382 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
388 | #define CORO_MAGIC_type_cv 26 |
383 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
389 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
384 | |
390 | |
385 | static MGVTBL coro_cv_vtbl = { |
391 | static MGVTBL coro_cv_vtbl = { |
386 | 0, 0, 0, 0, |
392 | 0, 0, 0, 0, |
387 | coro_cv_free |
393 | coro_cv_free |
388 | }; |
394 | }; |
389 | |
395 | |
|
|
396 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
397 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
398 | ? SvMAGIC (sv) \ |
|
|
399 | : mg_find (sv, type)) |
|
|
400 | |
390 | #define CORO_MAGIC(sv, type) \ |
401 | #define CORO_MAGIC(sv, type) \ |
391 | SvMAGIC (sv) \ |
402 | (expect_true (SvMAGIC (sv)) \ |
392 | ? SvMAGIC (sv)->mg_type == type \ |
403 | ? CORO_MAGIC_NN (sv, type) \ |
393 | ? SvMAGIC (sv) \ |
|
|
394 | : mg_find (sv, type) \ |
|
|
395 | : 0 |
404 | : 0) |
396 | |
405 | |
397 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
406 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
398 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
407 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
399 | |
408 | |
400 | static struct coro * |
409 | INLINE struct coro * |
401 | SvSTATE_ (pTHX_ SV *coro) |
410 | SvSTATE_ (pTHX_ SV *coro) |
402 | { |
411 | { |
403 | HV *stash; |
412 | HV *stash; |
404 | MAGIC *mg; |
413 | MAGIC *mg; |
405 | |
414 | |
… | |
… | |
420 | mg = CORO_MAGIC_state (coro); |
429 | mg = CORO_MAGIC_state (coro); |
421 | return (struct coro *)mg->mg_ptr; |
430 | return (struct coro *)mg->mg_ptr; |
422 | } |
431 | } |
423 | |
432 | |
424 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
433 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
434 | |
|
|
435 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
436 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
437 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
425 | |
438 | |
426 | /* the next two functions merely cache the padlists */ |
439 | /* the next two functions merely cache the padlists */ |
427 | static void |
440 | static void |
428 | get_padlist (pTHX_ CV *cv) |
441 | get_padlist (pTHX_ CV *cv) |
429 | { |
442 | { |
… | |
… | |
496 | CvPADLIST (cv) = (AV *)POPs; |
509 | CvPADLIST (cv) = (AV *)POPs; |
497 | } |
510 | } |
498 | |
511 | |
499 | PUTBACK; |
512 | PUTBACK; |
500 | } |
513 | } |
|
|
514 | |
|
|
515 | slf_frame = c->slf_frame; |
|
|
516 | CORO_THROW = c->except; |
501 | } |
517 | } |
502 | |
518 | |
503 | static void |
519 | static void |
504 | save_perl (pTHX_ Coro__State c) |
520 | save_perl (pTHX_ Coro__State c) |
505 | { |
521 | { |
|
|
522 | c->except = CORO_THROW; |
|
|
523 | c->slf_frame = slf_frame; |
|
|
524 | |
506 | { |
525 | { |
507 | dSP; |
526 | dSP; |
508 | I32 cxix = cxstack_ix; |
527 | I32 cxix = cxstack_ix; |
509 | PERL_CONTEXT *ccstk = cxstack; |
528 | PERL_CONTEXT *ccstk = cxstack; |
510 | PERL_SI *top_si = PL_curstackinfo; |
529 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
577 | #undef VAR |
596 | #undef VAR |
578 | } |
597 | } |
579 | } |
598 | } |
580 | |
599 | |
581 | /* |
600 | /* |
582 | * allocate various perl stacks. This is an exact copy |
601 | * allocate various perl stacks. This is almost an exact copy |
583 | * of perl.c:init_stacks, except that it uses less memory |
602 | * of perl.c:init_stacks, except that it uses less memory |
584 | * on the (sometimes correct) assumption that coroutines do |
603 | * on the (sometimes correct) assumption that coroutines do |
585 | * not usually need a lot of stackspace. |
604 | * not usually need a lot of stackspace. |
586 | */ |
605 | */ |
587 | #if CORO_PREFER_PERL_FUNCTIONS |
606 | #if CORO_PREFER_PERL_FUNCTIONS |
… | |
… | |
789 | |
808 | |
790 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
809 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
791 | } |
810 | } |
792 | |
811 | |
793 | static void |
812 | static void |
|
|
813 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
814 | { |
|
|
815 | /* kind of mega-hacky, but works */ |
|
|
816 | ta->next = ta->prev = (struct coro *)ta; |
|
|
817 | } |
|
|
818 | |
|
|
819 | static int |
|
|
820 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
821 | { |
|
|
822 | return 0; |
|
|
823 | } |
|
|
824 | |
|
|
825 | static UNOP coro_setup_op; |
|
|
826 | |
|
|
827 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
794 | coro_setup (pTHX_ struct coro *coro) |
828 | coro_setup (pTHX_ struct coro *coro) |
795 | { |
829 | { |
796 | /* |
830 | /* |
797 | * emulate part of the perl startup here. |
831 | * emulate part of the perl startup here. |
798 | */ |
832 | */ |
… | |
… | |
822 | PL_rs = newSVsv (GvSV (irsgv)); |
856 | PL_rs = newSVsv (GvSV (irsgv)); |
823 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
857 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
824 | |
858 | |
825 | { |
859 | { |
826 | dSP; |
860 | dSP; |
827 | LOGOP myop; |
861 | UNOP myop; |
828 | |
862 | |
829 | Zero (&myop, 1, LOGOP); |
863 | Zero (&myop, 1, UNOP); |
830 | myop.op_next = Nullop; |
864 | myop.op_next = Nullop; |
831 | myop.op_flags = OPf_WANT_VOID; |
865 | myop.op_flags = OPf_WANT_VOID; |
832 | |
866 | |
833 | PUSHMARK (SP); |
867 | PUSHMARK (SP); |
834 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
868 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
835 | PUTBACK; |
869 | PUTBACK; |
… | |
… | |
837 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
871 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
838 | SPAGAIN; |
872 | SPAGAIN; |
839 | } |
873 | } |
840 | |
874 | |
841 | /* this newly created coroutine might be run on an existing cctx which most |
875 | /* this newly created coroutine might be run on an existing cctx which most |
842 | * likely was suspended in set_stacklevel, called from entersub. |
876 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
843 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
844 | * so we ENTER here for symmetry |
|
|
845 | */ |
877 | */ |
846 | ENTER; |
878 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
879 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
880 | |
|
|
881 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
882 | coro_setup_op.op_next = PL_op; |
|
|
883 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
884 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
885 | /* no flags required, as an init function won't be called */ |
|
|
886 | |
|
|
887 | PL_op = (OP *)&coro_setup_op; |
|
|
888 | |
|
|
889 | /* copy throw, in case it was set before coro_setup */ |
|
|
890 | CORO_THROW = coro->except; |
847 | } |
891 | } |
848 | |
892 | |
849 | static void |
893 | static void |
850 | coro_destruct (pTHX_ struct coro *coro) |
894 | coro_destruct (pTHX_ struct coro *coro) |
851 | { |
895 | { |
… | |
… | |
875 | |
919 | |
876 | SvREFCNT_dec (PL_diehook); |
920 | SvREFCNT_dec (PL_diehook); |
877 | SvREFCNT_dec (PL_warnhook); |
921 | SvREFCNT_dec (PL_warnhook); |
878 | |
922 | |
879 | SvREFCNT_dec (coro->saved_deffh); |
923 | SvREFCNT_dec (coro->saved_deffh); |
880 | SvREFCNT_dec (coro->throw); |
924 | SvREFCNT_dec (CORO_THROW); |
881 | |
925 | |
882 | coro_destruct_stacks (aTHX); |
926 | coro_destruct_stacks (aTHX); |
883 | } |
927 | } |
884 | |
928 | |
885 | static void |
929 | INLINE void |
886 | free_coro_mortal (pTHX) |
930 | free_coro_mortal (pTHX) |
887 | { |
931 | { |
888 | if (expect_true (coro_mortal)) |
932 | if (expect_true (coro_mortal)) |
889 | { |
933 | { |
890 | SvREFCNT_dec (coro_mortal); |
934 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
895 | static int |
939 | static int |
896 | runops_trace (pTHX) |
940 | runops_trace (pTHX) |
897 | { |
941 | { |
898 | COP *oldcop = 0; |
942 | COP *oldcop = 0; |
899 | int oldcxix = -2; |
943 | int oldcxix = -2; |
900 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
944 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
901 | coro_cctx *cctx = coro->cctx; |
945 | coro_cctx *cctx = coro->cctx; |
902 | |
946 | |
903 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
947 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
904 | { |
948 | { |
905 | PERL_ASYNC_CHECK (); |
949 | PERL_ASYNC_CHECK (); |
… | |
… | |
1014 | |
1058 | |
1015 | TAINT_NOT; |
1059 | TAINT_NOT; |
1016 | return 0; |
1060 | return 0; |
1017 | } |
1061 | } |
1018 | |
1062 | |
1019 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1063 | static struct coro_cctx *cctx_ssl_cctx; |
1020 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1064 | static struct CoroSLF cctx_ssl_frame; |
1021 | /* during execution of a perl program */ |
1065 | |
|
|
1066 | static void |
|
|
1067 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1068 | { |
|
|
1069 | ta->prev = (struct coro *)cctx_ssl_cctx; |
|
|
1070 | ta->next = 0; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | static int |
|
|
1074 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1075 | { |
|
|
1076 | *frame = cctx_ssl_frame; |
|
|
1077 | |
|
|
1078 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1022 | static void NOINLINE |
1082 | static void NOINLINE |
1023 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1083 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1024 | { |
1084 | { |
1025 | dSP; |
|
|
1026 | LOGOP myop; |
|
|
1027 | |
|
|
1028 | PL_top_env = &PL_start_env; |
1085 | PL_top_env = &PL_start_env; |
1029 | |
1086 | |
1030 | if (cctx->flags & CC_TRACE) |
1087 | if (cctx->flags & CC_TRACE) |
1031 | PL_runops = runops_trace; |
1088 | PL_runops = runops_trace; |
1032 | |
1089 | |
1033 | Zero (&myop, 1, LOGOP); |
1090 | /* we already must be executing an SLF op, there is no other valid way |
1034 | myop.op_next = PL_op; |
1091 | * that can lead to creation of a new cctx */ |
1035 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1092 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1093 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1036 | |
1094 | |
1037 | PUSHMARK (SP); |
1095 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1038 | EXTEND (SP, 2); |
1096 | cctx_ssl_cctx = cctx; |
1039 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1097 | cctx_ssl_frame = slf_frame; |
1040 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1098 | |
1041 | PUTBACK; |
1099 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1042 | PL_op = (OP *)&myop; |
1100 | slf_frame.check = slf_check_set_stacklevel; |
1043 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1101 | } |
1044 | SPAGAIN; |
1102 | |
|
|
1103 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1104 | INLINE void |
|
|
1105 | transfer_tail (pTHX) |
|
|
1106 | { |
|
|
1107 | free_coro_mortal (aTHX); |
1045 | } |
1108 | } |
1046 | |
1109 | |
1047 | /* |
1110 | /* |
1048 | * this is a _very_ stripped down perl interpreter ;) |
1111 | * this is a _very_ stripped down perl interpreter ;) |
1049 | */ |
1112 | */ |
1050 | static void |
1113 | static void |
1051 | cctx_run (void *arg) |
1114 | cctx_run (void *arg) |
1052 | { |
1115 | { |
|
|
1116 | #ifdef USE_ITHREADS |
|
|
1117 | # if CORO_PTHREAD |
|
|
1118 | PERL_SET_CONTEXT (coro_thx); |
|
|
1119 | # endif |
|
|
1120 | #endif |
|
|
1121 | { |
1053 | dTHX; |
1122 | dTHX; |
1054 | |
1123 | |
1055 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1124 | /* normally we would need to skip the entersub here */ |
1056 | UNLOCK; |
1125 | /* not doing so will re-execute it, which is exactly what we want */ |
1057 | |
|
|
1058 | /* we now skip the entersub that lead to transfer() */ |
|
|
1059 | PL_op = PL_op->op_next; |
1126 | /* PL_nop = PL_nop->op_next */ |
1060 | |
1127 | |
1061 | /* inject a fake subroutine call to cctx_init */ |
1128 | /* inject a fake subroutine call to cctx_init */ |
1062 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1129 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1063 | |
1130 | |
|
|
1131 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1132 | transfer_tail (aTHX); |
|
|
1133 | |
1064 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1134 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1065 | PL_restartop = PL_op; |
1135 | PL_restartop = PL_op; |
1066 | perl_run (PL_curinterp); |
1136 | perl_run (PL_curinterp); |
1067 | |
1137 | |
1068 | /* |
1138 | /* |
1069 | * If perl-run returns we assume exit() was being called or the coro |
1139 | * If perl-run returns we assume exit() was being called or the coro |
1070 | * fell off the end, which seems to be the only valid (non-bug) |
1140 | * fell off the end, which seems to be the only valid (non-bug) |
1071 | * reason for perl_run to return. We try to exit by jumping to the |
1141 | * reason for perl_run to return. We try to exit by jumping to the |
1072 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1142 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1073 | * coroutine as Coro has no such concept |
1143 | * coroutine as Coro has no such concept |
1074 | */ |
1144 | */ |
1075 | PL_top_env = main_top_env; |
1145 | PL_top_env = main_top_env; |
1076 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1146 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1147 | } |
1077 | } |
1148 | } |
1078 | |
1149 | |
1079 | static coro_cctx * |
1150 | static coro_cctx * |
1080 | cctx_new () |
1151 | cctx_new () |
1081 | { |
1152 | { |
1082 | coro_cctx *cctx; |
1153 | coro_cctx *cctx; |
|
|
1154 | |
|
|
1155 | ++cctx_count; |
|
|
1156 | New (0, cctx, 1, coro_cctx); |
|
|
1157 | |
|
|
1158 | cctx->gen = cctx_gen; |
|
|
1159 | cctx->flags = 0; |
|
|
1160 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1161 | |
|
|
1162 | return cctx; |
|
|
1163 | } |
|
|
1164 | |
|
|
1165 | /* create a new cctx only suitable as source */ |
|
|
1166 | static coro_cctx * |
|
|
1167 | cctx_new_empty () |
|
|
1168 | { |
|
|
1169 | coro_cctx *cctx = cctx_new (); |
|
|
1170 | |
|
|
1171 | cctx->sptr = 0; |
|
|
1172 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1173 | |
|
|
1174 | return cctx; |
|
|
1175 | } |
|
|
1176 | |
|
|
1177 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1178 | static coro_cctx * |
|
|
1179 | cctx_new_run () |
|
|
1180 | { |
|
|
1181 | coro_cctx *cctx = cctx_new (); |
1083 | void *stack_start; |
1182 | void *stack_start; |
1084 | size_t stack_size; |
1183 | size_t stack_size; |
1085 | |
|
|
1086 | ++cctx_count; |
|
|
1087 | Newz (0, cctx, 1, coro_cctx); |
|
|
1088 | |
|
|
1089 | cctx->gen = cctx_gen; |
|
|
1090 | |
1184 | |
1091 | #if HAVE_MMAP |
1185 | #if HAVE_MMAP |
1092 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1186 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1093 | /* mmap supposedly does allocate-on-write for us */ |
1187 | /* mmap supposedly does allocate-on-write for us */ |
1094 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1188 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1095 | |
1189 | |
1096 | if (cctx->sptr != (void *)-1) |
1190 | if (cctx->sptr != (void *)-1) |
1097 | { |
1191 | { |
1098 | # if CORO_STACKGUARD |
1192 | #if CORO_STACKGUARD |
1099 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1193 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1100 | # endif |
1194 | #endif |
1101 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1195 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1102 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1196 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1103 | cctx->flags |= CC_MAPPED; |
1197 | cctx->flags |= CC_MAPPED; |
1104 | } |
1198 | } |
1105 | else |
1199 | else |
1106 | #endif |
1200 | #endif |
1107 | { |
1201 | { |
1108 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1202 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1109 | New (0, cctx->sptr, cctx_stacksize, long); |
1203 | New (0, cctx->sptr, cctx_stacksize, long); |
1110 | |
1204 | |
1111 | if (!cctx->sptr) |
1205 | if (!cctx->sptr) |
1112 | { |
1206 | { |
1113 | perror ("FATAL: unable to allocate stack for coroutine"); |
1207 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1114 | _exit (EXIT_FAILURE); |
1208 | _exit (EXIT_FAILURE); |
1115 | } |
1209 | } |
1116 | |
1210 | |
1117 | stack_start = cctx->sptr; |
1211 | stack_start = cctx->sptr; |
1118 | stack_size = cctx->ssize; |
1212 | stack_size = cctx->ssize; |
1119 | } |
1213 | } |
1120 | |
1214 | |
1121 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1215 | #if CORO_USE_VALGRIND |
|
|
1216 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1217 | #endif |
|
|
1218 | |
1122 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1219 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1123 | |
1220 | |
1124 | return cctx; |
1221 | return cctx; |
1125 | } |
1222 | } |
1126 | |
1223 | |
… | |
… | |
1134 | coro_destroy (&cctx->cctx); |
1231 | coro_destroy (&cctx->cctx); |
1135 | |
1232 | |
1136 | /* coro_transfer creates new, empty cctx's */ |
1233 | /* coro_transfer creates new, empty cctx's */ |
1137 | if (cctx->sptr) |
1234 | if (cctx->sptr) |
1138 | { |
1235 | { |
1139 | #if CORO_USE_VALGRIND |
1236 | #if CORO_USE_VALGRIND |
1140 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1237 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1141 | #endif |
1238 | #endif |
1142 | |
1239 | |
1143 | #if HAVE_MMAP |
1240 | #if HAVE_MMAP |
1144 | if (cctx->flags & CC_MAPPED) |
1241 | if (cctx->flags & CC_MAPPED) |
1145 | munmap (cctx->sptr, cctx->ssize); |
1242 | munmap (cctx->sptr, cctx->ssize); |
1146 | else |
1243 | else |
… | |
… | |
1167 | return cctx; |
1264 | return cctx; |
1168 | |
1265 | |
1169 | cctx_destroy (cctx); |
1266 | cctx_destroy (cctx); |
1170 | } |
1267 | } |
1171 | |
1268 | |
1172 | return cctx_new (); |
1269 | return cctx_new_run (); |
1173 | } |
1270 | } |
1174 | |
1271 | |
1175 | static void |
1272 | static void |
1176 | cctx_put (coro_cctx *cctx) |
1273 | cctx_put (coro_cctx *cctx) |
1177 | { |
1274 | { |
1178 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
1275 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1179 | |
1276 | |
1180 | /* free another cctx if overlimit */ |
1277 | /* free another cctx if overlimit */ |
1181 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1278 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1182 | { |
1279 | { |
1183 | coro_cctx *first = cctx_first; |
1280 | coro_cctx *first = cctx_first; |
… | |
… | |
1195 | /** coroutine switching *****************************************************/ |
1292 | /** coroutine switching *****************************************************/ |
1196 | |
1293 | |
1197 | static void |
1294 | static void |
1198 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1295 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1199 | { |
1296 | { |
|
|
1297 | /* TODO: throwing up here is considered harmful */ |
|
|
1298 | |
1200 | if (expect_true (prev != next)) |
1299 | if (expect_true (prev != next)) |
1201 | { |
1300 | { |
1202 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1301 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1203 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1302 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1204 | |
1303 | |
1205 | if (expect_false (next->flags & CF_RUNNING)) |
1304 | if (expect_false (next->flags & CF_RUNNING)) |
1206 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1305 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1207 | |
1306 | |
1208 | if (expect_false (next->flags & CF_DESTROYED)) |
1307 | if (expect_false (next->flags & CF_DESTROYED)) |
1209 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1308 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1210 | |
1309 | |
1211 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1310 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1212 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1311 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1213 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1312 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1214 | #endif |
1313 | #endif |
1215 | } |
1314 | } |
1216 | } |
1315 | } |
1217 | |
1316 | |
1218 | /* always use the TRANSFER macro */ |
1317 | /* always use the TRANSFER macro */ |
1219 | static void NOINLINE |
1318 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1220 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1319 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1221 | { |
1320 | { |
1222 | dSTACKLEVEL; |
1321 | dSTACKLEVEL; |
1223 | |
1322 | |
1224 | /* sometimes transfer is only called to set idle_sp */ |
1323 | /* sometimes transfer is only called to set idle_sp */ |
… | |
… | |
1227 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1326 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1228 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1327 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1229 | } |
1328 | } |
1230 | else if (expect_true (prev != next)) |
1329 | else if (expect_true (prev != next)) |
1231 | { |
1330 | { |
1232 | static volatile int has_throw; |
|
|
1233 | coro_cctx *prev__cctx; |
1331 | coro_cctx *prev__cctx; |
1234 | |
1332 | |
1235 | if (expect_false (prev->flags & CF_NEW)) |
1333 | if (expect_false (prev->flags & CF_NEW)) |
1236 | { |
1334 | { |
1237 | /* create a new empty/source context */ |
1335 | /* create a new empty/source context */ |
1238 | ++cctx_count; |
1336 | prev->cctx = cctx_new_empty (); |
1239 | New (0, prev->cctx, 1, coro_cctx); |
|
|
1240 | prev->cctx->sptr = 0; |
|
|
1241 | coro_create (&prev->cctx->cctx, 0, 0, 0, 0); |
|
|
1242 | |
|
|
1243 | prev->flags &= ~CF_NEW; |
1337 | prev->flags &= ~CF_NEW; |
1244 | prev->flags |= CF_RUNNING; |
1338 | prev->flags |= CF_RUNNING; |
1245 | } |
1339 | } |
1246 | |
1340 | |
1247 | prev->flags &= ~CF_RUNNING; |
1341 | prev->flags &= ~CF_RUNNING; |
1248 | next->flags |= CF_RUNNING; |
1342 | next->flags |= CF_RUNNING; |
1249 | |
|
|
1250 | LOCK; |
|
|
1251 | |
1343 | |
1252 | /* first get rid of the old state */ |
1344 | /* first get rid of the old state */ |
1253 | save_perl (aTHX_ prev); |
1345 | save_perl (aTHX_ prev); |
1254 | |
1346 | |
1255 | if (expect_false (next->flags & CF_NEW)) |
1347 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1262 | else |
1354 | else |
1263 | load_perl (aTHX_ next); |
1355 | load_perl (aTHX_ next); |
1264 | |
1356 | |
1265 | prev__cctx = prev->cctx; |
1357 | prev__cctx = prev->cctx; |
1266 | |
1358 | |
1267 | /* possibly "free" the cctx */ |
1359 | /* possibly untie and reuse the cctx */ |
1268 | if (expect_true ( |
1360 | if (expect_true ( |
1269 | prev__cctx->idle_sp == STACKLEVEL |
1361 | prev__cctx->idle_sp == STACKLEVEL |
1270 | && !(prev__cctx->flags & CC_TRACE) |
1362 | && !(prev__cctx->flags & CC_TRACE) |
1271 | && !force_cctx |
1363 | && !force_cctx |
1272 | )) |
1364 | )) |
1273 | { |
1365 | { |
1274 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1366 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1275 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1367 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1276 | |
1368 | |
1277 | prev->cctx = 0; |
1369 | prev->cctx = 0; |
1278 | |
1370 | |
1279 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1371 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1280 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1372 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
… | |
… | |
1287 | |
1379 | |
1288 | ++next->usecount; |
1380 | ++next->usecount; |
1289 | |
1381 | |
1290 | if (expect_true (!next->cctx)) |
1382 | if (expect_true (!next->cctx)) |
1291 | next->cctx = cctx_get (aTHX); |
1383 | next->cctx = cctx_get (aTHX); |
1292 | |
|
|
1293 | has_throw = !!next->throw; |
|
|
1294 | |
1384 | |
1295 | if (expect_false (prev__cctx != next->cctx)) |
1385 | if (expect_false (prev__cctx != next->cctx)) |
1296 | { |
1386 | { |
1297 | prev__cctx->top_env = PL_top_env; |
1387 | prev__cctx->top_env = PL_top_env; |
1298 | PL_top_env = next->cctx->top_env; |
1388 | PL_top_env = next->cctx->top_env; |
1299 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1389 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1300 | } |
1390 | } |
1301 | |
1391 | |
1302 | free_coro_mortal (aTHX); |
1392 | transfer_tail (aTHX); |
1303 | UNLOCK; |
|
|
1304 | |
|
|
1305 | if (expect_false (has_throw)) |
|
|
1306 | { |
|
|
1307 | struct coro *coro = SvSTATE (coro_current); |
|
|
1308 | |
|
|
1309 | if (coro->throw) |
|
|
1310 | { |
|
|
1311 | SV *exception = coro->throw; |
|
|
1312 | coro->throw = 0; |
|
|
1313 | sv_setsv (ERRSV, exception); |
|
|
1314 | croak (0); |
|
|
1315 | } |
|
|
1316 | } |
|
|
1317 | } |
1393 | } |
1318 | } |
1394 | } |
1319 | |
|
|
1320 | struct transfer_args |
|
|
1321 | { |
|
|
1322 | struct coro *prev, *next; |
|
|
1323 | }; |
|
|
1324 | |
1395 | |
1325 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1396 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1326 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1397 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1327 | |
1398 | |
1328 | /** high level stuff ********************************************************/ |
1399 | /** high level stuff ********************************************************/ |
… | |
… | |
1330 | static int |
1401 | static int |
1331 | coro_state_destroy (pTHX_ struct coro *coro) |
1402 | coro_state_destroy (pTHX_ struct coro *coro) |
1332 | { |
1403 | { |
1333 | if (coro->flags & CF_DESTROYED) |
1404 | if (coro->flags & CF_DESTROYED) |
1334 | return 0; |
1405 | return 0; |
|
|
1406 | |
|
|
1407 | if (coro->on_destroy) |
|
|
1408 | coro->on_destroy (aTHX_ coro); |
1335 | |
1409 | |
1336 | coro->flags |= CF_DESTROYED; |
1410 | coro->flags |= CF_DESTROYED; |
1337 | |
1411 | |
1338 | if (coro->flags & CF_READY) |
1412 | if (coro->flags & CF_READY) |
1339 | { |
1413 | { |
1340 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1414 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1341 | /* alternative: look through all ready queues and remove the coro */ |
1415 | /* alternative: look through all ready queues and remove the coro */ |
1342 | LOCK; |
|
|
1343 | --coro_nready; |
1416 | --coro_nready; |
1344 | UNLOCK; |
|
|
1345 | } |
1417 | } |
1346 | else |
1418 | else |
1347 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1419 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1348 | |
1420 | |
1349 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1421 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1350 | { |
1422 | { |
1351 | struct coro temp; |
1423 | struct coro temp; |
1352 | |
1424 | |
1353 | if (coro->flags & CF_RUNNING) |
1425 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1354 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1355 | |
1426 | |
1356 | save_perl (aTHX_ &temp); |
1427 | save_perl (aTHX_ &temp); |
1357 | load_perl (aTHX_ coro); |
1428 | load_perl (aTHX_ coro); |
1358 | |
1429 | |
1359 | coro_destruct (aTHX_ coro); |
1430 | coro_destruct (aTHX_ coro); |
… | |
… | |
1410 | # define MGf_DUP 0 |
1481 | # define MGf_DUP 0 |
1411 | #endif |
1482 | #endif |
1412 | }; |
1483 | }; |
1413 | |
1484 | |
1414 | static void |
1485 | static void |
1415 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1486 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1416 | { |
1487 | { |
1417 | ta->prev = SvSTATE (prev_sv); |
1488 | ta->prev = SvSTATE (prev_sv); |
1418 | ta->next = SvSTATE (next_sv); |
1489 | ta->next = SvSTATE (next_sv); |
1419 | TRANSFER_CHECK (*ta); |
1490 | TRANSFER_CHECK (*ta); |
1420 | } |
1491 | } |
1421 | |
1492 | |
1422 | static void |
1493 | static void |
1423 | api_transfer (SV *prev_sv, SV *next_sv) |
1494 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1424 | { |
1495 | { |
1425 | dTHX; |
|
|
1426 | struct transfer_args ta; |
1496 | struct coro_transfer_args ta; |
1427 | |
1497 | |
1428 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1498 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1429 | TRANSFER (ta, 1); |
1499 | TRANSFER (ta, 1); |
1430 | } |
1500 | } |
1431 | |
1501 | |
1432 | /** Coro ********************************************************************/ |
1502 | /** Coro ********************************************************************/ |
1433 | |
1503 | |
1434 | static void |
1504 | INLINE void |
1435 | coro_enq (pTHX_ SV *coro_sv) |
1505 | coro_enq (pTHX_ struct coro *coro) |
1436 | { |
1506 | { |
1437 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1507 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1438 | } |
1508 | } |
1439 | |
1509 | |
1440 | static SV * |
1510 | INLINE SV * |
1441 | coro_deq (pTHX) |
1511 | coro_deq (pTHX) |
1442 | { |
1512 | { |
1443 | int prio; |
1513 | int prio; |
1444 | |
1514 | |
1445 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1515 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1448 | |
1518 | |
1449 | return 0; |
1519 | return 0; |
1450 | } |
1520 | } |
1451 | |
1521 | |
1452 | static int |
1522 | static int |
1453 | api_ready (SV *coro_sv) |
1523 | api_ready (pTHX_ SV *coro_sv) |
1454 | { |
1524 | { |
1455 | dTHX; |
|
|
1456 | struct coro *coro; |
1525 | struct coro *coro; |
1457 | SV *sv_hook; |
1526 | SV *sv_hook; |
1458 | void (*xs_hook)(void); |
1527 | void (*xs_hook)(void); |
1459 | |
1528 | |
1460 | if (SvROK (coro_sv)) |
1529 | if (SvROK (coro_sv)) |
… | |
… | |
1465 | if (coro->flags & CF_READY) |
1534 | if (coro->flags & CF_READY) |
1466 | return 0; |
1535 | return 0; |
1467 | |
1536 | |
1468 | coro->flags |= CF_READY; |
1537 | coro->flags |= CF_READY; |
1469 | |
1538 | |
1470 | LOCK; |
|
|
1471 | |
|
|
1472 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1539 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1473 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1540 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1474 | |
1541 | |
1475 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1542 | coro_enq (aTHX_ coro); |
1476 | ++coro_nready; |
1543 | ++coro_nready; |
1477 | |
1544 | |
1478 | UNLOCK; |
|
|
1479 | |
|
|
1480 | if (sv_hook) |
1545 | if (sv_hook) |
1481 | { |
1546 | { |
1482 | dSP; |
1547 | dSP; |
1483 | |
1548 | |
1484 | ENTER; |
1549 | ENTER; |
1485 | SAVETMPS; |
1550 | SAVETMPS; |
1486 | |
1551 | |
1487 | PUSHMARK (SP); |
1552 | PUSHMARK (SP); |
1488 | PUTBACK; |
1553 | PUTBACK; |
1489 | call_sv (sv_hook, G_DISCARD); |
1554 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1490 | SPAGAIN; |
|
|
1491 | |
1555 | |
1492 | FREETMPS; |
1556 | FREETMPS; |
1493 | LEAVE; |
1557 | LEAVE; |
1494 | } |
1558 | } |
1495 | |
1559 | |
… | |
… | |
1498 | |
1562 | |
1499 | return 1; |
1563 | return 1; |
1500 | } |
1564 | } |
1501 | |
1565 | |
1502 | static int |
1566 | static int |
1503 | api_is_ready (SV *coro_sv) |
1567 | api_is_ready (pTHX_ SV *coro_sv) |
1504 | { |
1568 | { |
1505 | dTHX; |
|
|
1506 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1569 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1507 | } |
1570 | } |
1508 | |
1571 | |
1509 | static void |
1572 | INLINE void |
1510 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1573 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1511 | { |
1574 | { |
1512 | SV *prev_sv, *next_sv; |
1575 | SV *prev_sv, *next_sv; |
1513 | |
1576 | |
1514 | for (;;) |
1577 | for (;;) |
1515 | { |
1578 | { |
1516 | LOCK; |
|
|
1517 | next_sv = coro_deq (aTHX); |
1579 | next_sv = coro_deq (aTHX); |
1518 | |
1580 | |
1519 | /* nothing to schedule: call the idle handler */ |
1581 | /* nothing to schedule: call the idle handler */ |
1520 | if (expect_false (!next_sv)) |
1582 | if (expect_false (!next_sv)) |
1521 | { |
1583 | { |
1522 | dSP; |
1584 | dSP; |
1523 | UNLOCK; |
|
|
1524 | |
1585 | |
1525 | ENTER; |
1586 | ENTER; |
1526 | SAVETMPS; |
1587 | SAVETMPS; |
1527 | |
1588 | |
1528 | PUSHMARK (SP); |
1589 | PUSHMARK (SP); |
1529 | PUTBACK; |
1590 | PUTBACK; |
1530 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1591 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1531 | SPAGAIN; |
|
|
1532 | |
1592 | |
1533 | FREETMPS; |
1593 | FREETMPS; |
1534 | LEAVE; |
1594 | LEAVE; |
1535 | continue; |
1595 | continue; |
1536 | } |
1596 | } |
1537 | |
1597 | |
1538 | ta->next = SvSTATE (next_sv); |
1598 | ta->next = SvSTATE_hv (next_sv); |
1539 | |
1599 | |
1540 | /* cannot transfer to destroyed coros, skip and look for next */ |
1600 | /* cannot transfer to destroyed coros, skip and look for next */ |
1541 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1601 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1542 | { |
1602 | { |
1543 | UNLOCK; |
|
|
1544 | SvREFCNT_dec (next_sv); |
1603 | SvREFCNT_dec (next_sv); |
1545 | /* coro_nready is already taken care of by destroy */ |
1604 | /* coro_nready has already been taken care of by destroy */ |
1546 | continue; |
1605 | continue; |
1547 | } |
1606 | } |
1548 | |
1607 | |
1549 | --coro_nready; |
1608 | --coro_nready; |
1550 | UNLOCK; |
|
|
1551 | break; |
1609 | break; |
1552 | } |
1610 | } |
1553 | |
1611 | |
1554 | /* free this only after the transfer */ |
1612 | /* free this only after the transfer */ |
1555 | prev_sv = SvRV (coro_current); |
1613 | prev_sv = SvRV (coro_current); |
1556 | ta->prev = SvSTATE (prev_sv); |
1614 | ta->prev = SvSTATE_hv (prev_sv); |
1557 | TRANSFER_CHECK (*ta); |
1615 | TRANSFER_CHECK (*ta); |
1558 | assert (ta->next->flags & CF_READY); |
1616 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1559 | ta->next->flags &= ~CF_READY; |
1617 | ta->next->flags &= ~CF_READY; |
1560 | SvRV_set (coro_current, next_sv); |
1618 | SvRV_set (coro_current, next_sv); |
1561 | |
1619 | |
1562 | LOCK; |
|
|
1563 | free_coro_mortal (aTHX); |
1620 | free_coro_mortal (aTHX); |
1564 | coro_mortal = prev_sv; |
1621 | coro_mortal = prev_sv; |
1565 | UNLOCK; |
|
|
1566 | } |
1622 | } |
1567 | |
1623 | |
1568 | static void |
1624 | INLINE void |
1569 | prepare_cede (pTHX_ struct transfer_args *ta) |
1625 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1570 | { |
1626 | { |
1571 | api_ready (coro_current); |
1627 | api_ready (aTHX_ coro_current); |
1572 | prepare_schedule (aTHX_ ta); |
1628 | prepare_schedule (aTHX_ ta); |
1573 | } |
1629 | } |
1574 | |
1630 | |
|
|
1631 | INLINE void |
|
|
1632 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1633 | { |
|
|
1634 | SV *prev = SvRV (coro_current); |
|
|
1635 | |
|
|
1636 | if (coro_nready) |
|
|
1637 | { |
|
|
1638 | prepare_schedule (aTHX_ ta); |
|
|
1639 | api_ready (aTHX_ prev); |
|
|
1640 | } |
|
|
1641 | else |
|
|
1642 | prepare_nop (aTHX_ ta); |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | static void |
|
|
1646 | api_schedule (pTHX) |
|
|
1647 | { |
|
|
1648 | struct coro_transfer_args ta; |
|
|
1649 | |
|
|
1650 | prepare_schedule (aTHX_ &ta); |
|
|
1651 | TRANSFER (ta, 1); |
|
|
1652 | } |
|
|
1653 | |
1575 | static int |
1654 | static int |
1576 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1655 | api_cede (pTHX) |
1577 | { |
1656 | { |
1578 | if (coro_nready) |
1657 | struct coro_transfer_args ta; |
1579 | { |
1658 | |
1580 | SV *prev = SvRV (coro_current); |
|
|
1581 | prepare_schedule (aTHX_ ta); |
1659 | prepare_cede (aTHX_ &ta); |
1582 | api_ready (prev); |
1660 | |
|
|
1661 | if (expect_true (ta.prev != ta.next)) |
|
|
1662 | { |
|
|
1663 | TRANSFER (ta, 1); |
1583 | return 1; |
1664 | return 1; |
1584 | } |
1665 | } |
1585 | else |
1666 | else |
1586 | return 0; |
1667 | return 0; |
1587 | } |
1668 | } |
1588 | |
1669 | |
1589 | static void |
|
|
1590 | api_schedule (void) |
|
|
1591 | { |
|
|
1592 | dTHX; |
|
|
1593 | struct transfer_args ta; |
|
|
1594 | |
|
|
1595 | prepare_schedule (aTHX_ &ta); |
|
|
1596 | TRANSFER (ta, 1); |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | static int |
1670 | static int |
1600 | api_cede (void) |
1671 | api_cede_notself (pTHX) |
1601 | { |
1672 | { |
1602 | dTHX; |
1673 | if (coro_nready) |
|
|
1674 | { |
1603 | struct transfer_args ta; |
1675 | struct coro_transfer_args ta; |
1604 | |
1676 | |
1605 | prepare_cede (aTHX_ &ta); |
1677 | prepare_cede_notself (aTHX_ &ta); |
1606 | |
|
|
1607 | if (expect_true (ta.prev != ta.next)) |
|
|
1608 | { |
|
|
1609 | TRANSFER (ta, 1); |
1678 | TRANSFER (ta, 1); |
1610 | return 1; |
1679 | return 1; |
1611 | } |
1680 | } |
1612 | else |
1681 | else |
1613 | return 0; |
1682 | return 0; |
1614 | } |
1683 | } |
1615 | |
1684 | |
1616 | static int |
1685 | static void |
1617 | api_cede_notself (void) |
|
|
1618 | { |
|
|
1619 | dTHX; |
|
|
1620 | struct transfer_args ta; |
|
|
1621 | |
|
|
1622 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1623 | { |
|
|
1624 | TRANSFER (ta, 1); |
|
|
1625 | return 1; |
|
|
1626 | } |
|
|
1627 | else |
|
|
1628 | return 0; |
|
|
1629 | } |
|
|
1630 | |
|
|
1631 | static void |
|
|
1632 | api_trace (SV *coro_sv, int flags) |
1686 | api_trace (pTHX_ SV *coro_sv, int flags) |
1633 | { |
1687 | { |
1634 | dTHX; |
|
|
1635 | struct coro *coro = SvSTATE (coro_sv); |
1688 | struct coro *coro = SvSTATE (coro_sv); |
1636 | |
1689 | |
1637 | if (flags & CC_TRACE) |
1690 | if (flags & CC_TRACE) |
1638 | { |
1691 | { |
1639 | if (!coro->cctx) |
1692 | if (!coro->cctx) |
1640 | coro->cctx = cctx_new (); |
1693 | coro->cctx = cctx_new_run (); |
1641 | else if (!(coro->cctx->flags & CC_TRACE)) |
1694 | else if (!(coro->cctx->flags & CC_TRACE)) |
1642 | croak ("cannot enable tracing on coroutine with custom stack"); |
1695 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1643 | |
1696 | |
1644 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1697 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1645 | } |
1698 | } |
1646 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1699 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1647 | { |
1700 | { |
… | |
… | |
1652 | else |
1705 | else |
1653 | coro->slot->runops = RUNOPS_DEFAULT; |
1706 | coro->slot->runops = RUNOPS_DEFAULT; |
1654 | } |
1707 | } |
1655 | } |
1708 | } |
1656 | |
1709 | |
1657 | #if 0 |
1710 | /*****************************************************************************/ |
|
|
1711 | /* schedule-like-function opcode (SLF) */ |
|
|
1712 | |
|
|
1713 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1714 | static const CV *slf_cv; |
|
|
1715 | static SV **slf_argv; |
|
|
1716 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1717 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1718 | |
|
|
1719 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1720 | /* recreate the stack frame as perl will on following calls */ |
|
|
1721 | /* since entersub cleared the stack */ |
|
|
1722 | static OP * |
|
|
1723 | pp_restore (pTHX) |
|
|
1724 | { |
|
|
1725 | int i; |
|
|
1726 | SV **SP = PL_stack_base + slf_ax; |
|
|
1727 | |
|
|
1728 | PUSHMARK (SP); |
|
|
1729 | |
|
|
1730 | EXTEND (SP, slf_argc + 1); |
|
|
1731 | |
|
|
1732 | for (i = 0; i < slf_argc; ++i) |
|
|
1733 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1734 | |
|
|
1735 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1736 | |
|
|
1737 | RETURNOP (slf_restore.op_first); |
|
|
1738 | } |
|
|
1739 | |
1658 | static int |
1740 | static void |
1659 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1741 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
1660 | { |
1742 | { |
1661 | AV *padlist; |
1743 | SV **arg = (SV **)slf_frame.data; |
1662 | AV *av = (AV *)mg->mg_obj; |
|
|
1663 | |
1744 | |
1664 | abort (); |
1745 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
1665 | |
|
|
1666 | return 0; |
|
|
1667 | } |
1746 | } |
1668 | |
1747 | |
1669 | static MGVTBL coro_gensub_vtbl = { |
1748 | static void |
1670 | 0, 0, 0, 0, |
1749 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1671 | coro_gensub_free |
1750 | { |
1672 | }; |
1751 | if (items != 2) |
1673 | #endif |
1752 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1753 | |
|
|
1754 | frame->prepare = slf_prepare_transfer; |
|
|
1755 | frame->check = slf_check_nop; |
|
|
1756 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1757 | } |
|
|
1758 | |
|
|
1759 | static void |
|
|
1760 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1761 | { |
|
|
1762 | frame->prepare = prepare_schedule; |
|
|
1763 | frame->check = slf_check_nop; |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | static void |
|
|
1767 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1768 | { |
|
|
1769 | frame->prepare = prepare_cede; |
|
|
1770 | frame->check = slf_check_nop; |
|
|
1771 | } |
|
|
1772 | |
|
|
1773 | static void |
|
|
1774 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1775 | { |
|
|
1776 | frame->prepare = prepare_cede_notself; |
|
|
1777 | frame->check = slf_check_nop; |
|
|
1778 | } |
|
|
1779 | |
|
|
1780 | /* |
|
|
1781 | * these not obviously related functions are all rolled into one |
|
|
1782 | * function to increase chances that they all will call transfer with the same |
|
|
1783 | * stack offset |
|
|
1784 | * SLF stands for "schedule-like-function". |
|
|
1785 | */ |
|
|
1786 | static OP * |
|
|
1787 | pp_slf (pTHX) |
|
|
1788 | { |
|
|
1789 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1790 | |
|
|
1791 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1792 | /* the latter happens when a new coro has been started */ |
|
|
1793 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1794 | if (expect_true (!slf_frame.prepare)) |
|
|
1795 | { |
|
|
1796 | /* first iteration */ |
|
|
1797 | dSP; |
|
|
1798 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1799 | int items = SP - arg; /* args without function object */ |
|
|
1800 | SV *gv = *sp; |
|
|
1801 | |
|
|
1802 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1803 | /* for us, divert to the real entersub */ |
|
|
1804 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1805 | || !GvCV (gv) |
|
|
1806 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1807 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1808 | |
|
|
1809 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1810 | { |
|
|
1811 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1812 | AV *av = GvAV (PL_defgv); |
|
|
1813 | arg = AvARRAY (av); |
|
|
1814 | items = AvFILLp (av) + 1; |
|
|
1815 | } |
|
|
1816 | |
|
|
1817 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1818 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1819 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1820 | |
|
|
1821 | /* pop args */ |
|
|
1822 | SP = PL_stack_base + POPMARK; |
|
|
1823 | |
|
|
1824 | PUTBACK; |
|
|
1825 | } |
|
|
1826 | |
|
|
1827 | /* now that we have a slf_frame, interpret it! */ |
|
|
1828 | /* we use a callback system not to make the code needlessly */ |
|
|
1829 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1830 | |
|
|
1831 | do |
|
|
1832 | { |
|
|
1833 | struct coro_transfer_args ta; |
|
|
1834 | |
|
|
1835 | slf_frame.prepare (aTHX_ &ta); |
|
|
1836 | TRANSFER (ta, 0); |
|
|
1837 | |
|
|
1838 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1839 | } |
|
|
1840 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1841 | |
|
|
1842 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1843 | |
|
|
1844 | /* exception handling */ |
|
|
1845 | if (expect_false (CORO_THROW)) |
|
|
1846 | { |
|
|
1847 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
1848 | |
|
|
1849 | CORO_THROW = 0; |
|
|
1850 | sv_setsv (ERRSV, exception); |
|
|
1851 | croak (0); |
|
|
1852 | } |
|
|
1853 | |
|
|
1854 | /* return value handling - mostly like entersub */ |
|
|
1855 | /* make sure we put something on the stack in scalar context */ |
|
|
1856 | if (GIMME_V == G_SCALAR) |
|
|
1857 | { |
|
|
1858 | dSP; |
|
|
1859 | SV **bot = PL_stack_base + checkmark; |
|
|
1860 | |
|
|
1861 | if (sp == bot) /* too few, push undef */ |
|
|
1862 | bot [1] = &PL_sv_undef; |
|
|
1863 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
1864 | bot [1] = *sp; |
|
|
1865 | |
|
|
1866 | SP = bot + 1; |
|
|
1867 | |
|
|
1868 | PUTBACK; |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | return NORMAL; |
|
|
1872 | } |
|
|
1873 | |
|
|
1874 | static void |
|
|
1875 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1876 | { |
|
|
1877 | int i; |
|
|
1878 | SV **arg = PL_stack_base + ax; |
|
|
1879 | int items = PL_stack_sp - arg + 1; |
|
|
1880 | |
|
|
1881 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1882 | |
|
|
1883 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1884 | && PL_op->op_ppaddr != pp_slf) |
|
|
1885 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1886 | |
|
|
1887 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1888 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1889 | slf_cv = cv; |
|
|
1890 | |
|
|
1891 | /* we patch the op, and then re-run the whole call */ |
|
|
1892 | /* we have to put the same argument on the stack for this to work */ |
|
|
1893 | /* and this will be done by pp_restore */ |
|
|
1894 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1895 | slf_restore.op_type = OP_CUSTOM; |
|
|
1896 | slf_restore.op_ppaddr = pp_restore; |
|
|
1897 | slf_restore.op_first = PL_op; |
|
|
1898 | |
|
|
1899 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1900 | |
|
|
1901 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1902 | { |
|
|
1903 | if (items > slf_arga) |
|
|
1904 | { |
|
|
1905 | slf_arga = items; |
|
|
1906 | free (slf_argv); |
|
|
1907 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1908 | } |
|
|
1909 | |
|
|
1910 | slf_argc = items; |
|
|
1911 | |
|
|
1912 | for (i = 0; i < items; ++i) |
|
|
1913 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1914 | } |
|
|
1915 | else |
|
|
1916 | slf_argc = 0; |
|
|
1917 | |
|
|
1918 | PL_op->op_ppaddr = pp_slf; |
|
|
1919 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1920 | |
|
|
1921 | PL_op = (OP *)&slf_restore; |
|
|
1922 | } |
1674 | |
1923 | |
1675 | /*****************************************************************************/ |
1924 | /*****************************************************************************/ |
1676 | /* PerlIO::cede */ |
1925 | /* PerlIO::cede */ |
1677 | |
1926 | |
1678 | typedef struct |
1927 | typedef struct |
… | |
… | |
1706 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1955 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1707 | double now = nvtime (); |
1956 | double now = nvtime (); |
1708 | |
1957 | |
1709 | if (now >= self->next) |
1958 | if (now >= self->next) |
1710 | { |
1959 | { |
1711 | api_cede (); |
1960 | api_cede (aTHX); |
1712 | self->next = now + self->every; |
1961 | self->next = now + self->every; |
1713 | } |
1962 | } |
1714 | |
1963 | |
1715 | return PerlIOBuf_flush (aTHX_ f); |
1964 | return PerlIOBuf_flush (aTHX_ f); |
1716 | } |
1965 | } |
… | |
… | |
1745 | PerlIOBuf_get_ptr, |
1994 | PerlIOBuf_get_ptr, |
1746 | PerlIOBuf_get_cnt, |
1995 | PerlIOBuf_get_cnt, |
1747 | PerlIOBuf_set_ptrcnt, |
1996 | PerlIOBuf_set_ptrcnt, |
1748 | }; |
1997 | }; |
1749 | |
1998 | |
|
|
1999 | /*****************************************************************************/ |
|
|
2000 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2001 | |
|
|
2002 | static SV * |
|
|
2003 | coro_waitarray_new (pTHX_ int count) |
|
|
2004 | { |
|
|
2005 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2006 | AV *av = newAV (); |
|
|
2007 | SV **ary; |
|
|
2008 | |
|
|
2009 | /* unfortunately, building manually saves memory */ |
|
|
2010 | Newx (ary, 2, SV *); |
|
|
2011 | AvALLOC (av) = ary; |
|
|
2012 | AvARRAY (av) = ary; |
|
|
2013 | AvMAX (av) = 1; |
|
|
2014 | AvFILLp (av) = 0; |
|
|
2015 | ary [0] = newSViv (count); |
|
|
2016 | |
|
|
2017 | return newRV_noinc ((SV *)av); |
|
|
2018 | } |
|
|
2019 | |
|
|
2020 | /* semaphore */ |
|
|
2021 | |
|
|
2022 | static void |
|
|
2023 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2024 | { |
|
|
2025 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2026 | IV count = SvIVX (count_sv); |
|
|
2027 | |
|
|
2028 | count += adjust; |
|
|
2029 | SvIVX (count_sv) = count; |
|
|
2030 | |
|
|
2031 | /* now wake up as many waiters as are expected to lock */ |
|
|
2032 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2033 | { |
|
|
2034 | SV *cb; |
|
|
2035 | |
|
|
2036 | /* swap first two elements so we can shift a waiter */ |
|
|
2037 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2038 | AvARRAY (av)[1] = count_sv; |
|
|
2039 | cb = av_shift (av); |
|
|
2040 | |
|
|
2041 | if (SvOBJECT (cb)) |
|
|
2042 | api_ready (aTHX_ cb); |
|
|
2043 | else |
|
|
2044 | croak ("callbacks not yet supported"); |
|
|
2045 | |
|
|
2046 | SvREFCNT_dec (cb); |
|
|
2047 | |
|
|
2048 | --count; |
|
|
2049 | } |
|
|
2050 | } |
|
|
2051 | |
|
|
2052 | static void |
|
|
2053 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2054 | { |
|
|
2055 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2056 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2057 | } |
|
|
2058 | |
|
|
2059 | static int |
|
|
2060 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2061 | { |
|
|
2062 | AV *av = (AV *)frame->data; |
|
|
2063 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2064 | |
|
|
2065 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2066 | if (CORO_THROW) |
|
|
2067 | return 0; |
|
|
2068 | else if (SvIVX (count_sv) > 0) |
|
|
2069 | { |
|
|
2070 | SvSTATE_current->on_destroy = 0; |
|
|
2071 | |
|
|
2072 | if (acquire) |
|
|
2073 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2074 | else |
|
|
2075 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2076 | |
|
|
2077 | return 0; |
|
|
2078 | } |
|
|
2079 | else |
|
|
2080 | { |
|
|
2081 | int i; |
|
|
2082 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2083 | /* waiters list and only add us if we aren't in there already */ |
|
|
2084 | /* this avoids some degenerate memory usage cases */ |
|
|
2085 | |
|
|
2086 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2087 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2088 | return 1; |
|
|
2089 | |
|
|
2090 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2091 | return 1; |
|
|
2092 | } |
|
|
2093 | } |
|
|
2094 | |
|
|
2095 | static int |
|
|
2096 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2097 | { |
|
|
2098 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2099 | } |
|
|
2100 | |
|
|
2101 | static int |
|
|
2102 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2103 | { |
|
|
2104 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | static void |
|
|
2108 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2109 | { |
|
|
2110 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2111 | |
|
|
2112 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2113 | { |
|
|
2114 | frame->data = (void *)av; |
|
|
2115 | frame->prepare = prepare_nop; |
|
|
2116 | } |
|
|
2117 | else |
|
|
2118 | { |
|
|
2119 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2120 | |
|
|
2121 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2122 | frame->prepare = prepare_schedule; |
|
|
2123 | |
|
|
2124 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2125 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2126 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2127 | } |
|
|
2128 | } |
|
|
2129 | |
|
|
2130 | static void |
|
|
2131 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2132 | { |
|
|
2133 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2134 | frame->check = slf_check_semaphore_down; |
|
|
2135 | } |
|
|
2136 | |
|
|
2137 | static void |
|
|
2138 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2139 | { |
|
|
2140 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2141 | frame->check = slf_check_semaphore_wait; |
|
|
2142 | } |
|
|
2143 | |
|
|
2144 | /* signal */ |
|
|
2145 | |
|
|
2146 | static void |
|
|
2147 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2148 | { |
|
|
2149 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2150 | |
|
|
2151 | /* now signal count waiters */ |
|
|
2152 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2153 | { |
|
|
2154 | SV *cb; |
|
|
2155 | |
|
|
2156 | /* swap first two elements so we can shift a waiter */ |
|
|
2157 | cb = AvARRAY (av)[0]; |
|
|
2158 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2159 | AvARRAY (av)[1] = cb; |
|
|
2160 | |
|
|
2161 | cb = av_shift (av); |
|
|
2162 | |
|
|
2163 | api_ready (cb); |
|
|
2164 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2165 | SvREFCNT_dec (cb); |
|
|
2166 | |
|
|
2167 | --count; |
|
|
2168 | } |
|
|
2169 | } |
|
|
2170 | |
|
|
2171 | static int |
|
|
2172 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2173 | { |
|
|
2174 | /* if we are about to throw, also stop waiting */ |
|
|
2175 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2176 | } |
|
|
2177 | |
|
|
2178 | static void |
|
|
2179 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2180 | { |
|
|
2181 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2182 | |
|
|
2183 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2184 | { |
|
|
2185 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2186 | frame->prepare = prepare_nop; |
|
|
2187 | frame->check = slf_check_nop; |
|
|
2188 | } |
|
|
2189 | else |
|
|
2190 | { |
|
|
2191 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2192 | |
|
|
2193 | av_push (av, waiter); |
|
|
2194 | |
|
|
2195 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2196 | frame->prepare = prepare_schedule; |
|
|
2197 | frame->check = slf_check_signal_wait; |
|
|
2198 | } |
|
|
2199 | } |
|
|
2200 | |
|
|
2201 | /*****************************************************************************/ |
|
|
2202 | /* gensub: simple closure generation utility */ |
|
|
2203 | |
|
|
2204 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2205 | |
|
|
2206 | /* create a closure from XS, returns a code reference */ |
|
|
2207 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2208 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2209 | static SV * |
|
|
2210 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2211 | { |
|
|
2212 | CV *cv = (CV *)newSV (0); |
|
|
2213 | |
|
|
2214 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2215 | |
|
|
2216 | CvANON_on (cv); |
|
|
2217 | CvISXSUB_on (cv); |
|
|
2218 | CvXSUB (cv) = xsub; |
|
|
2219 | GENSUB_ARG = arg; |
|
|
2220 | |
|
|
2221 | return newRV_noinc ((SV *)cv); |
|
|
2222 | } |
|
|
2223 | |
|
|
2224 | /*****************************************************************************/ |
|
|
2225 | /* Coro::AIO */ |
|
|
2226 | |
|
|
2227 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2228 | |
|
|
2229 | /* helper storage struct */ |
|
|
2230 | struct io_state |
|
|
2231 | { |
|
|
2232 | int errorno; |
|
|
2233 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2234 | int laststatval; |
|
|
2235 | Stat_t statcache; |
|
|
2236 | }; |
|
|
2237 | |
|
|
2238 | static void |
|
|
2239 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2240 | { |
|
|
2241 | dXSARGS; |
|
|
2242 | AV *state = (AV *)GENSUB_ARG; |
|
|
2243 | SV *coro = av_pop (state); |
|
|
2244 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2245 | |
|
|
2246 | av_extend (state, items); |
|
|
2247 | |
|
|
2248 | sv_upgrade (data_sv, SVt_PV); |
|
|
2249 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2250 | SvPOK_only (data_sv); |
|
|
2251 | |
|
|
2252 | { |
|
|
2253 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2254 | |
|
|
2255 | data->errorno = errno; |
|
|
2256 | data->laststype = PL_laststype; |
|
|
2257 | data->laststatval = PL_laststatval; |
|
|
2258 | data->statcache = PL_statcache; |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2262 | { |
|
|
2263 | int i; |
|
|
2264 | |
|
|
2265 | for (i = 0; i < items; ++i) |
|
|
2266 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2267 | } |
|
|
2268 | |
|
|
2269 | av_push (state, data_sv); |
|
|
2270 | |
|
|
2271 | api_ready (aTHX_ coro); |
|
|
2272 | SvREFCNT_dec (coro); |
|
|
2273 | SvREFCNT_dec ((AV *)state); |
|
|
2274 | } |
|
|
2275 | |
|
|
2276 | static int |
|
|
2277 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2278 | { |
|
|
2279 | AV *state = (AV *)frame->data; |
|
|
2280 | |
|
|
2281 | /* if we are about to throw, return early */ |
|
|
2282 | /* this does not cancel the aio request, but at least */ |
|
|
2283 | /* it quickly returns */ |
|
|
2284 | if (CORO_THROW) |
|
|
2285 | return 0; |
|
|
2286 | |
|
|
2287 | /* one element that is an RV? repeat! */ |
|
|
2288 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2289 | return 1; |
|
|
2290 | |
|
|
2291 | /* restore status */ |
|
|
2292 | { |
|
|
2293 | SV *data_sv = av_pop (state); |
|
|
2294 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2295 | |
|
|
2296 | errno = data->errorno; |
|
|
2297 | PL_laststype = data->laststype; |
|
|
2298 | PL_laststatval = data->laststatval; |
|
|
2299 | PL_statcache = data->statcache; |
|
|
2300 | |
|
|
2301 | SvREFCNT_dec (data_sv); |
|
|
2302 | } |
|
|
2303 | |
|
|
2304 | /* push result values */ |
|
|
2305 | { |
|
|
2306 | dSP; |
|
|
2307 | int i; |
|
|
2308 | |
|
|
2309 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2310 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2311 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2312 | |
|
|
2313 | PUTBACK; |
|
|
2314 | } |
|
|
2315 | |
|
|
2316 | return 0; |
|
|
2317 | } |
|
|
2318 | |
|
|
2319 | static void |
|
|
2320 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2321 | { |
|
|
2322 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2323 | SV *coro_hv = SvRV (coro_current); |
|
|
2324 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2325 | |
|
|
2326 | /* put our coroutine id on the state arg */ |
|
|
2327 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2328 | |
|
|
2329 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2330 | if (coro->prio) |
|
|
2331 | { |
|
|
2332 | dSP; |
|
|
2333 | |
|
|
2334 | static SV *prio_cv; |
|
|
2335 | static SV *prio_sv; |
|
|
2336 | |
|
|
2337 | if (expect_false (!prio_cv)) |
|
|
2338 | { |
|
|
2339 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2340 | prio_sv = newSViv (0); |
|
|
2341 | } |
|
|
2342 | |
|
|
2343 | PUSHMARK (SP); |
|
|
2344 | sv_setiv (prio_sv, coro->prio); |
|
|
2345 | XPUSHs (prio_sv); |
|
|
2346 | |
|
|
2347 | PUTBACK; |
|
|
2348 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2349 | } |
|
|
2350 | |
|
|
2351 | /* now call the original request */ |
|
|
2352 | { |
|
|
2353 | dSP; |
|
|
2354 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2355 | int i; |
|
|
2356 | |
|
|
2357 | PUSHMARK (SP); |
|
|
2358 | |
|
|
2359 | /* first push all args to the stack */ |
|
|
2360 | EXTEND (SP, items + 1); |
|
|
2361 | |
|
|
2362 | for (i = 0; i < items; ++i) |
|
|
2363 | PUSHs (arg [i]); |
|
|
2364 | |
|
|
2365 | /* now push the callback closure */ |
|
|
2366 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2367 | |
|
|
2368 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2369 | PUTBACK; |
|
|
2370 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2371 | } |
|
|
2372 | |
|
|
2373 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2374 | frame->data = (void *)state; |
|
|
2375 | frame->prepare = prepare_schedule; |
|
|
2376 | frame->check = slf_check_aio_req; |
|
|
2377 | } |
|
|
2378 | |
|
|
2379 | static void |
|
|
2380 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2381 | { |
|
|
2382 | dXSARGS; |
|
|
2383 | |
|
|
2384 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2385 | |
|
|
2386 | XSRETURN_EMPTY; |
|
|
2387 | } |
|
|
2388 | |
|
|
2389 | /*****************************************************************************/ |
1750 | |
2390 | |
1751 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2391 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1752 | |
2392 | |
1753 | PROTOTYPES: DISABLE |
2393 | PROTOTYPES: DISABLE |
1754 | |
2394 | |
1755 | BOOT: |
2395 | BOOT: |
1756 | { |
2396 | { |
1757 | #ifdef USE_ITHREADS |
2397 | #ifdef USE_ITHREADS |
1758 | MUTEX_INIT (&coro_lock); |
2398 | # if CORO_PTHREAD |
|
|
2399 | coro_thx = PERL_GET_CONTEXT; |
|
|
2400 | # endif |
1759 | #endif |
2401 | #endif |
1760 | BOOT_PAGESIZE; |
2402 | BOOT_PAGESIZE; |
1761 | |
2403 | |
1762 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2404 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1763 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2405 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
… | |
… | |
1781 | main_top_env = PL_top_env; |
2423 | main_top_env = PL_top_env; |
1782 | |
2424 | |
1783 | while (main_top_env->je_prev) |
2425 | while (main_top_env->je_prev) |
1784 | main_top_env = main_top_env->je_prev; |
2426 | main_top_env = main_top_env->je_prev; |
1785 | |
2427 | |
|
|
2428 | { |
|
|
2429 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2430 | |
|
|
2431 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2432 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2433 | newSVpv ("coro_slf", 0), 0); |
|
|
2434 | |
|
|
2435 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2436 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2437 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2438 | } |
|
|
2439 | |
1786 | coroapi.ver = CORO_API_VERSION; |
2440 | coroapi.ver = CORO_API_VERSION; |
1787 | coroapi.rev = CORO_API_REVISION; |
2441 | coroapi.rev = CORO_API_REVISION; |
|
|
2442 | |
1788 | coroapi.transfer = api_transfer; |
2443 | coroapi.transfer = api_transfer; |
|
|
2444 | |
|
|
2445 | coroapi.sv_state = SvSTATE_; |
|
|
2446 | coroapi.execute_slf = api_execute_slf; |
|
|
2447 | coroapi.prepare_nop = prepare_nop; |
|
|
2448 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2449 | coroapi.prepare_cede = prepare_cede; |
|
|
2450 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1789 | |
2451 | |
1790 | { |
2452 | { |
1791 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2453 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1792 | |
2454 | |
1793 | if (!svp) croak ("Time::HiRes is required"); |
2455 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
1826 | av_push (coro->args, newSVsv (ST (i))); |
2488 | av_push (coro->args, newSVsv (ST (i))); |
1827 | } |
2489 | } |
1828 | OUTPUT: |
2490 | OUTPUT: |
1829 | RETVAL |
2491 | RETVAL |
1830 | |
2492 | |
1831 | # these not obviously related functions are all rolled into the same xs |
|
|
1832 | # function to increase chances that they all will call transfer with the same |
|
|
1833 | # stack offset |
|
|
1834 | void |
2493 | void |
1835 | _set_stacklevel (...) |
2494 | transfer (...) |
1836 | ALIAS: |
2495 | PROTOTYPE: $$ |
1837 | Coro::State::transfer = 1 |
2496 | CODE: |
1838 | Coro::schedule = 2 |
2497 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1839 | Coro::cede = 3 |
|
|
1840 | Coro::cede_notself = 4 |
|
|
1841 | CODE: |
|
|
1842 | { |
|
|
1843 | struct transfer_args ta; |
|
|
1844 | |
|
|
1845 | PUTBACK; |
|
|
1846 | switch (ix) |
|
|
1847 | { |
|
|
1848 | case 0: |
|
|
1849 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1850 | ta.next = 0; |
|
|
1851 | break; |
|
|
1852 | |
|
|
1853 | case 1: |
|
|
1854 | if (items != 2) |
|
|
1855 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1856 | |
|
|
1857 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1858 | break; |
|
|
1859 | |
|
|
1860 | case 2: |
|
|
1861 | prepare_schedule (aTHX_ &ta); |
|
|
1862 | break; |
|
|
1863 | |
|
|
1864 | case 3: |
|
|
1865 | prepare_cede (aTHX_ &ta); |
|
|
1866 | break; |
|
|
1867 | |
|
|
1868 | case 4: |
|
|
1869 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1870 | XSRETURN_EMPTY; |
|
|
1871 | |
|
|
1872 | break; |
|
|
1873 | } |
|
|
1874 | SPAGAIN; |
|
|
1875 | |
|
|
1876 | BARRIER; |
|
|
1877 | PUTBACK; |
|
|
1878 | TRANSFER (ta, 0); |
|
|
1879 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1880 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1881 | } |
|
|
1882 | |
2498 | |
1883 | bool |
2499 | bool |
1884 | _destroy (SV *coro_sv) |
2500 | _destroy (SV *coro_sv) |
1885 | CODE: |
2501 | CODE: |
1886 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2502 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1893 | CODE: |
2509 | CODE: |
1894 | _exit (code); |
2510 | _exit (code); |
1895 | |
2511 | |
1896 | int |
2512 | int |
1897 | cctx_stacksize (int new_stacksize = 0) |
2513 | cctx_stacksize (int new_stacksize = 0) |
|
|
2514 | PROTOTYPE: ;$ |
1898 | CODE: |
2515 | CODE: |
1899 | RETVAL = cctx_stacksize; |
2516 | RETVAL = cctx_stacksize; |
1900 | if (new_stacksize) |
2517 | if (new_stacksize) |
1901 | { |
2518 | { |
1902 | cctx_stacksize = new_stacksize; |
2519 | cctx_stacksize = new_stacksize; |
… | |
… | |
1905 | OUTPUT: |
2522 | OUTPUT: |
1906 | RETVAL |
2523 | RETVAL |
1907 | |
2524 | |
1908 | int |
2525 | int |
1909 | cctx_max_idle (int max_idle = 0) |
2526 | cctx_max_idle (int max_idle = 0) |
|
|
2527 | PROTOTYPE: ;$ |
1910 | CODE: |
2528 | CODE: |
1911 | RETVAL = cctx_max_idle; |
2529 | RETVAL = cctx_max_idle; |
1912 | if (max_idle > 1) |
2530 | if (max_idle > 1) |
1913 | cctx_max_idle = max_idle; |
2531 | cctx_max_idle = max_idle; |
1914 | OUTPUT: |
2532 | OUTPUT: |
1915 | RETVAL |
2533 | RETVAL |
1916 | |
2534 | |
1917 | int |
2535 | int |
1918 | cctx_count () |
2536 | cctx_count () |
|
|
2537 | PROTOTYPE: |
1919 | CODE: |
2538 | CODE: |
1920 | RETVAL = cctx_count; |
2539 | RETVAL = cctx_count; |
1921 | OUTPUT: |
2540 | OUTPUT: |
1922 | RETVAL |
2541 | RETVAL |
1923 | |
2542 | |
1924 | int |
2543 | int |
1925 | cctx_idle () |
2544 | cctx_idle () |
|
|
2545 | PROTOTYPE: |
1926 | CODE: |
2546 | CODE: |
1927 | RETVAL = cctx_idle; |
2547 | RETVAL = cctx_idle; |
1928 | OUTPUT: |
2548 | OUTPUT: |
1929 | RETVAL |
2549 | RETVAL |
1930 | |
2550 | |
1931 | void |
2551 | void |
1932 | list () |
2552 | list () |
|
|
2553 | PROTOTYPE: |
1933 | PPCODE: |
2554 | PPCODE: |
1934 | { |
2555 | { |
1935 | struct coro *coro; |
2556 | struct coro *coro; |
1936 | for (coro = coro_first; coro; coro = coro->next) |
2557 | for (coro = coro_first; coro; coro = coro->next) |
1937 | if (coro->hv) |
2558 | if (coro->hv) |
… | |
… | |
1996 | RETVAL = boolSV (coro->flags & ix); |
2617 | RETVAL = boolSV (coro->flags & ix); |
1997 | OUTPUT: |
2618 | OUTPUT: |
1998 | RETVAL |
2619 | RETVAL |
1999 | |
2620 | |
2000 | void |
2621 | void |
|
|
2622 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2623 | PROTOTYPE: $;$ |
|
|
2624 | CODE: |
|
|
2625 | { |
|
|
2626 | struct coro *current = SvSTATE_current; |
|
|
2627 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
2628 | SvREFCNT_dec (*throwp); |
|
|
2629 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2630 | } |
|
|
2631 | |
|
|
2632 | void |
2001 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2633 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2634 | PROTOTYPE: $;$ |
|
|
2635 | C_ARGS: aTHX_ coro, flags |
2002 | |
2636 | |
2003 | SV * |
2637 | SV * |
2004 | has_cctx (Coro::State coro) |
2638 | has_cctx (Coro::State coro) |
2005 | PROTOTYPE: $ |
2639 | PROTOTYPE: $ |
2006 | CODE: |
2640 | CODE: |
… | |
… | |
2030 | OUTPUT: |
2664 | OUTPUT: |
2031 | RETVAL |
2665 | RETVAL |
2032 | |
2666 | |
2033 | void |
2667 | void |
2034 | force_cctx () |
2668 | force_cctx () |
|
|
2669 | PROTOTYPE: |
2035 | CODE: |
2670 | CODE: |
2036 | struct coro *coro = SvSTATE (coro_current); |
|
|
2037 | coro->cctx->idle_sp = 0; |
2671 | SvSTATE_current->cctx->idle_sp = 0; |
2038 | |
2672 | |
2039 | void |
2673 | void |
2040 | swap_defsv (Coro::State self) |
2674 | swap_defsv (Coro::State self) |
2041 | PROTOTYPE: $ |
2675 | PROTOTYPE: $ |
2042 | ALIAS: |
2676 | ALIAS: |
2043 | swap_defav = 1 |
2677 | swap_defav = 1 |
2044 | CODE: |
2678 | CODE: |
2045 | if (!self->slot) |
2679 | if (!self->slot) |
2046 | croak ("cannot swap state with coroutine that has no saved state"); |
2680 | croak ("cannot swap state with coroutine that has no saved state,"); |
2047 | else |
2681 | else |
2048 | { |
2682 | { |
2049 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2683 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2050 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2684 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2051 | |
2685 | |
2052 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2686 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2053 | } |
2687 | } |
|
|
2688 | |
2054 | |
2689 | |
2055 | MODULE = Coro::State PACKAGE = Coro |
2690 | MODULE = Coro::State PACKAGE = Coro |
2056 | |
2691 | |
2057 | BOOT: |
2692 | BOOT: |
2058 | { |
2693 | { |
… | |
… | |
2076 | |
2711 | |
2077 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2712 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2078 | coro_ready[i] = newAV (); |
2713 | coro_ready[i] = newAV (); |
2079 | |
2714 | |
2080 | { |
2715 | { |
2081 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
2716 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2082 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2083 | |
2717 | |
2084 | coroapi.schedule = api_schedule; |
2718 | coroapi.schedule = api_schedule; |
2085 | coroapi.cede = api_cede; |
2719 | coroapi.cede = api_cede; |
2086 | coroapi.cede_notself = api_cede_notself; |
2720 | coroapi.cede_notself = api_cede_notself; |
2087 | coroapi.ready = api_ready; |
2721 | coroapi.ready = api_ready; |
2088 | coroapi.is_ready = api_is_ready; |
2722 | coroapi.is_ready = api_is_ready; |
2089 | coroapi.nready = &coro_nready; |
2723 | coroapi.nready = coro_nready; |
2090 | coroapi.current = coro_current; |
2724 | coroapi.current = coro_current; |
2091 | |
2725 | |
2092 | GCoroAPI = &coroapi; |
2726 | /*GCoroAPI = &coroapi;*/ |
2093 | sv_setiv (sv, (IV)&coroapi); |
2727 | sv_setiv (sv, (IV)&coroapi); |
2094 | SvREADONLY_on (sv); |
2728 | SvREADONLY_on (sv); |
2095 | } |
2729 | } |
2096 | } |
2730 | } |
|
|
2731 | |
|
|
2732 | void |
|
|
2733 | schedule (...) |
|
|
2734 | CODE: |
|
|
2735 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2736 | |
|
|
2737 | void |
|
|
2738 | cede (...) |
|
|
2739 | CODE: |
|
|
2740 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2741 | |
|
|
2742 | void |
|
|
2743 | cede_notself (...) |
|
|
2744 | CODE: |
|
|
2745 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2097 | |
2746 | |
2098 | void |
2747 | void |
2099 | _set_current (SV *current) |
2748 | _set_current (SV *current) |
2100 | PROTOTYPE: $ |
2749 | PROTOTYPE: $ |
2101 | CODE: |
2750 | CODE: |
… | |
… | |
2104 | |
2753 | |
2105 | void |
2754 | void |
2106 | _set_readyhook (SV *hook) |
2755 | _set_readyhook (SV *hook) |
2107 | PROTOTYPE: $ |
2756 | PROTOTYPE: $ |
2108 | CODE: |
2757 | CODE: |
2109 | LOCK; |
|
|
2110 | SvREFCNT_dec (coro_readyhook); |
2758 | SvREFCNT_dec (coro_readyhook); |
2111 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2759 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2112 | UNLOCK; |
|
|
2113 | |
2760 | |
2114 | int |
2761 | int |
2115 | prio (Coro::State coro, int newprio = 0) |
2762 | prio (Coro::State coro, int newprio = 0) |
|
|
2763 | PROTOTYPE: $;$ |
2116 | ALIAS: |
2764 | ALIAS: |
2117 | nice = 1 |
2765 | nice = 1 |
2118 | CODE: |
2766 | CODE: |
2119 | { |
2767 | { |
2120 | RETVAL = coro->prio; |
2768 | RETVAL = coro->prio; |
… | |
… | |
2135 | |
2783 | |
2136 | SV * |
2784 | SV * |
2137 | ready (SV *self) |
2785 | ready (SV *self) |
2138 | PROTOTYPE: $ |
2786 | PROTOTYPE: $ |
2139 | CODE: |
2787 | CODE: |
2140 | RETVAL = boolSV (api_ready (self)); |
2788 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2141 | OUTPUT: |
2789 | OUTPUT: |
2142 | RETVAL |
2790 | RETVAL |
2143 | |
2791 | |
2144 | int |
2792 | int |
2145 | nready (...) |
2793 | nready (...) |
… | |
… | |
2147 | CODE: |
2795 | CODE: |
2148 | RETVAL = coro_nready; |
2796 | RETVAL = coro_nready; |
2149 | OUTPUT: |
2797 | OUTPUT: |
2150 | RETVAL |
2798 | RETVAL |
2151 | |
2799 | |
2152 | void |
|
|
2153 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2154 | PROTOTYPE: $;$ |
|
|
2155 | CODE: |
|
|
2156 | SvREFCNT_dec (self->throw); |
|
|
2157 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2158 | |
|
|
2159 | # for async_pool speedup |
2800 | # for async_pool speedup |
2160 | void |
2801 | void |
2161 | _pool_1 (SV *cb) |
2802 | _pool_1 (SV *cb) |
2162 | CODE: |
2803 | CODE: |
2163 | { |
2804 | { |
2164 | struct coro *coro = SvSTATE (coro_current); |
|
|
2165 | HV *hv = (HV *)SvRV (coro_current); |
2805 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2806 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2166 | AV *defav = GvAV (PL_defgv); |
2807 | AV *defav = GvAV (PL_defgv); |
2167 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2808 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2168 | AV *invoke_av; |
2809 | AV *invoke_av; |
2169 | int i, len; |
2810 | int i, len; |
2170 | |
2811 | |
… | |
… | |
2191 | { |
2832 | { |
2192 | av_fill (defav, len - 1); |
2833 | av_fill (defav, len - 1); |
2193 | for (i = 0; i < len; ++i) |
2834 | for (i = 0; i < len; ++i) |
2194 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2835 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2195 | } |
2836 | } |
2196 | |
|
|
2197 | SvREFCNT_dec (invoke); |
|
|
2198 | } |
2837 | } |
2199 | |
2838 | |
2200 | void |
2839 | void |
2201 | _pool_2 (SV *cb) |
2840 | _pool_2 (SV *cb) |
2202 | CODE: |
2841 | CODE: |
2203 | { |
2842 | { |
2204 | struct coro *coro = SvSTATE (coro_current); |
2843 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2844 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2205 | |
2845 | |
2206 | sv_setsv (cb, &PL_sv_undef); |
2846 | sv_setsv (cb, &PL_sv_undef); |
2207 | |
2847 | |
2208 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2848 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2209 | coro->saved_deffh = 0; |
2849 | coro->saved_deffh = 0; |
… | |
… | |
2216 | SvREFCNT_dec (old); |
2856 | SvREFCNT_dec (old); |
2217 | croak ("\3async_pool terminate\2\n"); |
2857 | croak ("\3async_pool terminate\2\n"); |
2218 | } |
2858 | } |
2219 | |
2859 | |
2220 | av_clear (GvAV (PL_defgv)); |
2860 | av_clear (GvAV (PL_defgv)); |
2221 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2861 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2222 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2862 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2223 | |
2863 | |
2224 | coro->prio = 0; |
2864 | coro->prio = 0; |
2225 | |
2865 | |
2226 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2866 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2227 | api_trace (coro_current, 0); |
2867 | api_trace (aTHX_ coro_current, 0); |
2228 | |
2868 | |
2229 | av_push (av_async_pool, newSVsv (coro_current)); |
2869 | av_push (av_async_pool, newSVsv (coro_current)); |
2230 | } |
2870 | } |
2231 | |
2871 | |
2232 | #if 0 |
|
|
2233 | |
2872 | |
2234 | void |
2873 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2235 | _generator_call (...) |
2874 | |
2236 | PROTOTYPE: @ |
2875 | BOOT: |
2237 | PPCODE: |
2876 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2238 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
2877 | |
2239 | xxxx |
2878 | |
2240 | abort (); |
2879 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2241 | |
2880 | |
2242 | SV * |
2881 | SV * |
2243 | gensub (SV *sub, ...) |
2882 | new (SV *klass, SV *count = 0) |
2244 | PROTOTYPE: &;@ |
2883 | CODE: |
2245 | CODE: |
2884 | RETVAL = sv_bless ( |
2246 | { |
2885 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
2247 | struct coro *coro; |
2886 | GvSTASH (CvGV (cv)) |
2248 | MAGIC *mg; |
2887 | ); |
2249 | CV *xcv; |
|
|
2250 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2251 | int i; |
|
|
2252 | |
|
|
2253 | CvGV (ncv) = CvGV (cv); |
|
|
2254 | CvFILE (ncv) = CvFILE (cv); |
|
|
2255 | |
|
|
2256 | Newz (0, coro, 1, struct coro); |
|
|
2257 | coro->args = newAV (); |
|
|
2258 | coro->flags = CF_NEW; |
|
|
2259 | |
|
|
2260 | av_extend (coro->args, items - 1); |
|
|
2261 | for (i = 1; i < items; i++) |
|
|
2262 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2263 | |
|
|
2264 | CvISXSUB_on (ncv); |
|
|
2265 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2266 | |
|
|
2267 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2268 | |
|
|
2269 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2270 | CvANON_on (ncv); |
|
|
2271 | |
|
|
2272 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2273 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2274 | } |
|
|
2275 | OUTPUT: |
2888 | OUTPUT: |
2276 | RETVAL |
2889 | RETVAL |
2277 | |
2890 | |
2278 | #endif |
2891 | # helper for Coro::Channel |
|
|
2892 | SV * |
|
|
2893 | _alloc (int count) |
|
|
2894 | CODE: |
|
|
2895 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
2896 | OUTPUT: |
|
|
2897 | RETVAL |
2279 | |
2898 | |
2280 | |
2899 | SV * |
2281 | MODULE = Coro::State PACKAGE = Coro::AIO |
2900 | count (SV *self) |
|
|
2901 | CODE: |
|
|
2902 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2903 | OUTPUT: |
|
|
2904 | RETVAL |
2282 | |
2905 | |
2283 | void |
2906 | void |
2284 | _get_state (SV *self) |
2907 | up (SV *self, int adjust = 1) |
2285 | PPCODE: |
2908 | ALIAS: |
2286 | { |
2909 | adjust = 1 |
2287 | AV *defav = GvAV (PL_defgv); |
2910 | CODE: |
2288 | AV *av = newAV (); |
2911 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2289 | int i; |
|
|
2290 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2291 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2292 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2293 | SvPOK_only (data_sv); |
|
|
2294 | |
|
|
2295 | data->errorno = errno; |
|
|
2296 | data->laststype = PL_laststype; |
|
|
2297 | data->laststatval = PL_laststatval; |
|
|
2298 | data->statcache = PL_statcache; |
|
|
2299 | |
|
|
2300 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2301 | |
|
|
2302 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2303 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2304 | |
|
|
2305 | av_push (av, data_sv); |
|
|
2306 | |
|
|
2307 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2308 | |
|
|
2309 | api_ready (self); |
|
|
2310 | } |
|
|
2311 | |
2912 | |
2312 | void |
2913 | void |
2313 | _set_state (SV *state) |
2914 | down (SV *self) |
2314 | PROTOTYPE: $ |
2915 | CODE: |
|
|
2916 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2917 | |
|
|
2918 | void |
|
|
2919 | wait (SV *self) |
|
|
2920 | CODE: |
|
|
2921 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
2922 | |
|
|
2923 | void |
|
|
2924 | try (SV *self) |
|
|
2925 | PPCODE: |
|
|
2926 | { |
|
|
2927 | AV *av = (AV *)SvRV (self); |
|
|
2928 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2929 | IV count = SvIVX (count_sv); |
|
|
2930 | |
|
|
2931 | if (count > 0) |
|
|
2932 | { |
|
|
2933 | --count; |
|
|
2934 | SvIVX (count_sv) = count; |
|
|
2935 | XSRETURN_YES; |
|
|
2936 | } |
|
|
2937 | else |
|
|
2938 | XSRETURN_NO; |
|
|
2939 | } |
|
|
2940 | |
|
|
2941 | void |
|
|
2942 | waiters (SV *self) |
|
|
2943 | PPCODE: |
|
|
2944 | { |
|
|
2945 | AV *av = (AV *)SvRV (self); |
|
|
2946 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
2947 | |
|
|
2948 | if (GIMME_V == G_SCALAR) |
|
|
2949 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
2950 | else |
|
|
2951 | { |
|
|
2952 | int i; |
|
|
2953 | EXTEND (SP, wcount); |
|
|
2954 | for (i = 1; i <= wcount; ++i) |
|
|
2955 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
2956 | } |
|
|
2957 | } |
|
|
2958 | |
|
|
2959 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
2960 | |
|
|
2961 | SV * |
|
|
2962 | new (SV *klass) |
2315 | PPCODE: |
2963 | CODE: |
|
|
2964 | RETVAL = sv_bless ( |
|
|
2965 | coro_waitarray_new (aTHX_ 0), |
|
|
2966 | GvSTASH (CvGV (cv)) |
|
|
2967 | ); |
|
|
2968 | OUTPUT: |
|
|
2969 | RETVAL |
|
|
2970 | |
|
|
2971 | void |
|
|
2972 | wait (SV *self) |
|
|
2973 | CODE: |
|
|
2974 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
2975 | |
|
|
2976 | void |
|
|
2977 | broadcast (SV *self) |
|
|
2978 | CODE: |
2316 | { |
2979 | { |
2317 | AV *av = (AV *)SvRV (state); |
2980 | AV *av = (AV *)SvRV (self); |
2318 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
2981 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
2319 | int i; |
2982 | } |
2320 | |
2983 | |
2321 | errno = data->errorno; |
2984 | void |
2322 | PL_laststype = data->laststype; |
2985 | send (SV *self) |
2323 | PL_laststatval = data->laststatval; |
2986 | CODE: |
2324 | PL_statcache = data->statcache; |
2987 | { |
|
|
2988 | AV *av = (AV *)SvRV (self); |
2325 | |
2989 | |
2326 | EXTEND (SP, AvFILLp (av)); |
2990 | if (AvFILLp (av)) |
2327 | for (i = 0; i < AvFILLp (av); ++i) |
2991 | coro_signal_wake (av, 1); |
2328 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
2992 | else |
|
|
2993 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2329 | } |
2994 | } |
|
|
2995 | |
|
|
2996 | IV |
|
|
2997 | awaited (SV *self) |
|
|
2998 | CODE: |
|
|
2999 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3000 | OUTPUT: |
|
|
3001 | RETVAL |
2330 | |
3002 | |
2331 | |
3003 | |
2332 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3004 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2333 | |
3005 | |
2334 | BOOT: |
3006 | BOOT: |
2335 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3007 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2336 | |
3008 | |
2337 | SV * |
3009 | void |
2338 | _schedule (...) |
3010 | _schedule (...) |
2339 | PROTOTYPE: @ |
|
|
2340 | CODE: |
3011 | CODE: |
2341 | { |
3012 | { |
2342 | static int incede; |
3013 | static int incede; |
2343 | |
3014 | |
2344 | api_cede_notself (); |
3015 | api_cede_notself (aTHX); |
2345 | |
3016 | |
2346 | ++incede; |
3017 | ++incede; |
2347 | while (coro_nready >= incede && api_cede ()) |
3018 | while (coro_nready >= incede && api_cede (aTHX)) |
2348 | ; |
3019 | ; |
2349 | |
3020 | |
2350 | sv_setsv (sv_activity, &PL_sv_undef); |
3021 | sv_setsv (sv_activity, &PL_sv_undef); |
2351 | if (coro_nready >= incede) |
3022 | if (coro_nready >= incede) |
2352 | { |
3023 | { |
2353 | PUSHMARK (SP); |
3024 | PUSHMARK (SP); |
2354 | PUTBACK; |
3025 | PUTBACK; |
2355 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3026 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2356 | SPAGAIN; |
|
|
2357 | } |
3027 | } |
2358 | |
3028 | |
2359 | --incede; |
3029 | --incede; |
2360 | } |
3030 | } |
2361 | |
3031 | |
2362 | |
3032 | |
2363 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3033 | MODULE = Coro::State PACKAGE = Coro::AIO |
2364 | |
3034 | |
2365 | BOOT: |
3035 | void |
2366 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3036 | _register (char *target, char *proto, SV *req) |
|
|
3037 | CODE: |
|
|
3038 | { |
|
|
3039 | HV *st; |
|
|
3040 | GV *gvp; |
|
|
3041 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
3042 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3043 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3044 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3045 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3046 | } |
|
|
3047 | |