… | |
… | |
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 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
58 | |
55 | |
59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
60 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
61 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
62 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
… | |
… | |
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_mutex; |
153 | # if CORO_PTHREAD |
148 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
154 | static void *coro_thx; |
149 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } 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; |
|
|
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? */ |
166 | |
159 | |
|
|
160 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
161 | #define CVf_SLF 0x4000 |
|
|
162 | static OP *pp_slf (pTHX); |
|
|
163 | |
|
|
164 | static U32 cctx_gen; |
167 | static size_t coro_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
168 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
169 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
170 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
171 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
172 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
… | |
… | |
196 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
197 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
198 | }; |
196 | }; |
199 | |
197 | |
200 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
201 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
|
|
200 | { |
202 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
203 | |
202 | |
204 | /* the stack */ |
203 | /* the stack */ |
205 | void *sptr; |
204 | void *sptr; |
206 | size_t ssize; |
205 | size_t ssize; |
… | |
… | |
209 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
208 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
210 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
209 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
211 | JMPENV *top_env; |
210 | JMPENV *top_env; |
212 | coro_context cctx; |
211 | coro_context cctx; |
213 | |
212 | |
|
|
213 | U32 gen; |
214 | #if CORO_USE_VALGRIND |
214 | #if CORO_USE_VALGRIND |
215 | int valgrind_id; |
215 | int valgrind_id; |
216 | #endif |
216 | #endif |
217 | unsigned char flags; |
217 | unsigned char flags; |
218 | } coro_cctx; |
218 | } coro_cctx; |
… | |
… | |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
225 | }; |
225 | }; |
226 | |
226 | |
227 | /* 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 */ |
228 | typedef struct { |
228 | typedef struct |
|
|
229 | { |
229 | SV *defsv; |
230 | SV *defsv; |
230 | AV *defav; |
231 | AV *defav; |
231 | SV *errsv; |
232 | SV *errsv; |
232 | SV *irsgv; |
233 | SV *irsgv; |
233 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
… | |
… | |
237 | |
238 | |
238 | #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)) |
239 | |
240 | |
240 | /* this is a structure representing a perl-level coroutine */ |
241 | /* this is a structure representing a perl-level coroutine */ |
241 | struct coro { |
242 | struct coro { |
242 | /* the c coroutine allocated to this perl coroutine, if any */ |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
243 | coro_cctx *cctx; |
244 | coro_cctx *cctx; |
244 | |
245 | |
245 | /* process data */ |
246 | /* state data */ |
|
|
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
246 | AV *mainstack; |
248 | AV *mainstack; |
247 | perl_slots *slot; /* basically the saved sp */ |
249 | perl_slots *slot; /* basically the saved sp */ |
248 | |
250 | |
249 | AV *args; /* data associated with this coroutine (initial args) */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
250 | int refcnt; /* coroutines are refcounted, yes */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
251 | int flags; /* CF_ flags */ |
253 | int flags; /* CF_ flags */ |
252 | 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); |
253 | |
256 | |
254 | /* statistics */ |
257 | /* statistics */ |
255 | int usecount; /* number of transfers to this coro */ |
258 | int usecount; /* number of transfers to this coro */ |
256 | |
259 | |
257 | /* coro process data */ |
260 | /* coro process data */ |
258 | int prio; |
261 | int prio; |
259 | SV *throw; /* exception to be thrown */ |
262 | SV *except; /* exception to be thrown */ |
260 | |
263 | |
261 | /* async_pool */ |
264 | /* async_pool */ |
262 | SV *saved_deffh; |
265 | SV *saved_deffh; |
263 | |
266 | |
264 | /* linked list */ |
267 | /* linked list */ |
265 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
266 | }; |
269 | }; |
267 | |
270 | |
268 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
269 | 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 */ |
270 | |
278 | |
271 | /** Coro ********************************************************************/ |
279 | /** Coro ********************************************************************/ |
272 | |
280 | |
273 | #define PRIO_MAX 3 |
281 | #define PRIO_MAX 3 |
274 | #define PRIO_HIGH 1 |
282 | #define PRIO_HIGH 1 |
… | |
… | |
278 | #define PRIO_MIN -4 |
286 | #define PRIO_MIN -4 |
279 | |
287 | |
280 | /* for Coro.pm */ |
288 | /* for Coro.pm */ |
281 | static SV *coro_current; |
289 | static SV *coro_current; |
282 | static SV *coro_readyhook; |
290 | static SV *coro_readyhook; |
283 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
291 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
284 | static int coro_nready; |
|
|
285 | static struct coro *coro_first; |
292 | static struct coro *coro_first; |
|
|
293 | #define coro_nready coroapi.nready |
286 | |
294 | |
287 | /** lowlevel stuff **********************************************************/ |
295 | /** lowlevel stuff **********************************************************/ |
288 | |
296 | |
289 | static SV * |
297 | static SV * |
290 | coro_get_sv (pTHX_ const char *name, int create) |
298 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
375 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
383 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
376 | |
384 | |
377 | return 0; |
385 | return 0; |
378 | } |
386 | } |
379 | |
387 | |
380 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
388 | #define CORO_MAGIC_type_cv 26 |
381 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
389 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
382 | |
390 | |
383 | static MGVTBL coro_cv_vtbl = { |
391 | static MGVTBL coro_cv_vtbl = { |
384 | 0, 0, 0, 0, |
392 | 0, 0, 0, 0, |
385 | coro_cv_free |
393 | coro_cv_free |
386 | }; |
394 | }; |
387 | |
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 | |
388 | #define CORO_MAGIC(sv,type) \ |
401 | #define CORO_MAGIC(sv, type) \ |
389 | SvMAGIC (sv) \ |
402 | (expect_true (SvMAGIC (sv)) \ |
390 | ? SvMAGIC (sv)->mg_type == type \ |
403 | ? CORO_MAGIC_NN (sv, type) \ |
391 | ? SvMAGIC (sv) \ |
|
|
392 | : mg_find (sv, type) \ |
|
|
393 | : 0 |
404 | : 0) |
394 | |
405 | |
395 | #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) |
396 | #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) |
397 | |
408 | |
398 | static struct coro * |
409 | INLINE struct coro * |
399 | SvSTATE_ (pTHX_ SV *coro) |
410 | SvSTATE_ (pTHX_ SV *coro) |
400 | { |
411 | { |
401 | HV *stash; |
412 | HV *stash; |
402 | MAGIC *mg; |
413 | MAGIC *mg; |
403 | |
414 | |
… | |
… | |
418 | mg = CORO_MAGIC_state (coro); |
429 | mg = CORO_MAGIC_state (coro); |
419 | return (struct coro *)mg->mg_ptr; |
430 | return (struct coro *)mg->mg_ptr; |
420 | } |
431 | } |
421 | |
432 | |
422 | #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)) |
423 | |
438 | |
424 | /* the next two functions merely cache the padlists */ |
439 | /* the next two functions merely cache the padlists */ |
425 | static void |
440 | static void |
426 | get_padlist (pTHX_ CV *cv) |
441 | get_padlist (pTHX_ CV *cv) |
427 | { |
442 | { |
… | |
… | |
494 | CvPADLIST (cv) = (AV *)POPs; |
509 | CvPADLIST (cv) = (AV *)POPs; |
495 | } |
510 | } |
496 | |
511 | |
497 | PUTBACK; |
512 | PUTBACK; |
498 | } |
513 | } |
|
|
514 | |
|
|
515 | slf_frame = c->slf_frame; |
|
|
516 | CORO_THROW = c->except; |
499 | } |
517 | } |
500 | |
518 | |
501 | static void |
519 | static void |
502 | save_perl (pTHX_ Coro__State c) |
520 | save_perl (pTHX_ Coro__State c) |
503 | { |
521 | { |
|
|
522 | c->except = CORO_THROW; |
|
|
523 | c->slf_frame = slf_frame; |
|
|
524 | |
504 | { |
525 | { |
505 | dSP; |
526 | dSP; |
506 | I32 cxix = cxstack_ix; |
527 | I32 cxix = cxstack_ix; |
507 | PERL_CONTEXT *ccstk = cxstack; |
528 | PERL_CONTEXT *ccstk = cxstack; |
508 | PERL_SI *top_si = PL_curstackinfo; |
529 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
575 | #undef VAR |
596 | #undef VAR |
576 | } |
597 | } |
577 | } |
598 | } |
578 | |
599 | |
579 | /* |
600 | /* |
580 | * allocate various perl stacks. This is an exact copy |
601 | * allocate various perl stacks. This is almost an exact copy |
581 | * of perl.c:init_stacks, except that it uses less memory |
602 | * of perl.c:init_stacks, except that it uses less memory |
582 | * on the (sometimes correct) assumption that coroutines do |
603 | * on the (sometimes correct) assumption that coroutines do |
583 | * not usually need a lot of stackspace. |
604 | * not usually need a lot of stackspace. |
584 | */ |
605 | */ |
585 | #if CORO_PREFER_PERL_FUNCTIONS |
606 | #if CORO_PREFER_PERL_FUNCTIONS |
… | |
… | |
628 | |
649 | |
629 | /* |
650 | /* |
630 | * destroy the stacks, the callchain etc... |
651 | * destroy the stacks, the callchain etc... |
631 | */ |
652 | */ |
632 | static void |
653 | static void |
633 | coro_destroy_stacks (pTHX) |
654 | coro_destruct_stacks (pTHX) |
634 | { |
655 | { |
635 | while (PL_curstackinfo->si_next) |
656 | while (PL_curstackinfo->si_next) |
636 | PL_curstackinfo = PL_curstackinfo->si_next; |
657 | PL_curstackinfo = PL_curstackinfo->si_next; |
637 | |
658 | |
638 | while (PL_curstackinfo) |
659 | while (PL_curstackinfo) |
… | |
… | |
787 | |
808 | |
788 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
809 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
789 | } |
810 | } |
790 | |
811 | |
791 | 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 */ |
792 | coro_setup (pTHX_ struct coro *coro) |
828 | coro_setup (pTHX_ struct coro *coro) |
793 | { |
829 | { |
794 | /* |
830 | /* |
795 | * emulate part of the perl startup here. |
831 | * emulate part of the perl startup here. |
796 | */ |
832 | */ |
… | |
… | |
820 | PL_rs = newSVsv (GvSV (irsgv)); |
856 | PL_rs = newSVsv (GvSV (irsgv)); |
821 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
857 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
822 | |
858 | |
823 | { |
859 | { |
824 | dSP; |
860 | dSP; |
825 | LOGOP myop; |
861 | UNOP myop; |
826 | |
862 | |
827 | Zero (&myop, 1, LOGOP); |
863 | Zero (&myop, 1, UNOP); |
828 | myop.op_next = Nullop; |
864 | myop.op_next = Nullop; |
829 | myop.op_flags = OPf_WANT_VOID; |
865 | myop.op_flags = OPf_WANT_VOID; |
830 | |
866 | |
831 | PUSHMARK (SP); |
867 | PUSHMARK (SP); |
832 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
868 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
833 | PUTBACK; |
869 | PUTBACK; |
… | |
… | |
835 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
871 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
836 | SPAGAIN; |
872 | SPAGAIN; |
837 | } |
873 | } |
838 | |
874 | |
839 | /* 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 |
840 | * 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. |
841 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
842 | * so we ENTER here for symmetry |
|
|
843 | */ |
877 | */ |
844 | ENTER; |
878 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
845 | } |
879 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
846 | |
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; |
|
|
891 | } |
|
|
892 | |
847 | static void |
893 | static void |
848 | coro_destroy (pTHX_ struct coro *coro) |
894 | coro_destruct (pTHX_ struct coro *coro) |
849 | { |
895 | { |
850 | if (!IN_DESTRUCT) |
896 | if (!IN_DESTRUCT) |
851 | { |
897 | { |
852 | /* restore all saved variables and stuff */ |
898 | /* restore all saved variables and stuff */ |
853 | LEAVE_SCOPE (0); |
899 | LEAVE_SCOPE (0); |
… | |
… | |
873 | |
919 | |
874 | SvREFCNT_dec (PL_diehook); |
920 | SvREFCNT_dec (PL_diehook); |
875 | SvREFCNT_dec (PL_warnhook); |
921 | SvREFCNT_dec (PL_warnhook); |
876 | |
922 | |
877 | SvREFCNT_dec (coro->saved_deffh); |
923 | SvREFCNT_dec (coro->saved_deffh); |
878 | SvREFCNT_dec (coro->throw); |
924 | SvREFCNT_dec (CORO_THROW); |
879 | |
925 | |
880 | coro_destroy_stacks (aTHX); |
926 | coro_destruct_stacks (aTHX); |
881 | } |
927 | } |
882 | |
928 | |
883 | static void |
929 | INLINE void |
884 | free_coro_mortal (pTHX) |
930 | free_coro_mortal (pTHX) |
885 | { |
931 | { |
886 | if (expect_true (coro_mortal)) |
932 | if (expect_true (coro_mortal)) |
887 | { |
933 | { |
888 | SvREFCNT_dec (coro_mortal); |
934 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
893 | static int |
939 | static int |
894 | runops_trace (pTHX) |
940 | runops_trace (pTHX) |
895 | { |
941 | { |
896 | COP *oldcop = 0; |
942 | COP *oldcop = 0; |
897 | int oldcxix = -2; |
943 | int oldcxix = -2; |
898 | 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 */ |
899 | coro_cctx *cctx = coro->cctx; |
945 | coro_cctx *cctx = coro->cctx; |
900 | |
946 | |
901 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
947 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
902 | { |
948 | { |
903 | PERL_ASYNC_CHECK (); |
949 | PERL_ASYNC_CHECK (); |
… | |
… | |
1012 | |
1058 | |
1013 | TAINT_NOT; |
1059 | TAINT_NOT; |
1014 | return 0; |
1060 | return 0; |
1015 | } |
1061 | } |
1016 | |
1062 | |
1017 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1063 | static struct coro_cctx *cctx_ssl_cctx; |
1018 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1064 | static struct CoroSLF cctx_ssl_frame; |
1019 | /* 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 */ |
1020 | static void NOINLINE |
1082 | static void NOINLINE |
1021 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1083 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1022 | { |
1084 | { |
1023 | dSP; |
|
|
1024 | LOGOP myop; |
|
|
1025 | |
|
|
1026 | PL_top_env = &PL_start_env; |
1085 | PL_top_env = &PL_start_env; |
1027 | |
1086 | |
1028 | if (cctx->flags & CC_TRACE) |
1087 | if (cctx->flags & CC_TRACE) |
1029 | PL_runops = runops_trace; |
1088 | PL_runops = runops_trace; |
1030 | |
1089 | |
1031 | Zero (&myop, 1, LOGOP); |
1090 | /* we already must be executing an SLF op, there is no other valid way |
1032 | myop.op_next = PL_op; |
1091 | * that can lead to creation of a new cctx */ |
1033 | 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)); |
1034 | |
1094 | |
1035 | PUSHMARK (SP); |
1095 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1036 | EXTEND (SP, 2); |
1096 | cctx_ssl_cctx = cctx; |
1037 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1097 | cctx_ssl_frame = slf_frame; |
1038 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1098 | |
1039 | PUTBACK; |
1099 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1040 | PL_op = (OP *)&myop; |
1100 | slf_frame.check = slf_check_set_stacklevel; |
1041 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1101 | } |
1042 | 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); |
1043 | } |
1108 | } |
1044 | |
1109 | |
1045 | /* |
1110 | /* |
1046 | * this is a _very_ stripped down perl interpreter ;) |
1111 | * this is a _very_ stripped down perl interpreter ;) |
1047 | */ |
1112 | */ |
1048 | static void |
1113 | static void |
1049 | cctx_run (void *arg) |
1114 | cctx_run (void *arg) |
1050 | { |
1115 | { |
|
|
1116 | #ifdef USE_ITHREADS |
|
|
1117 | # if CORO_PTHREAD |
|
|
1118 | PERL_SET_CONTEXT (coro_thx); |
|
|
1119 | # endif |
|
|
1120 | #endif |
|
|
1121 | { |
1051 | dTHX; |
1122 | dTHX; |
1052 | |
1123 | |
1053 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1124 | /* normally we would need to skip the entersub here */ |
1054 | UNLOCK; |
1125 | /* not doing so will re-execute it, which is exactly what we want */ |
1055 | |
|
|
1056 | /* we now skip the entersub that lead to transfer() */ |
|
|
1057 | PL_op = PL_op->op_next; |
1126 | /* PL_nop = PL_nop->op_next */ |
1058 | |
1127 | |
1059 | /* inject a fake subroutine call to cctx_init */ |
1128 | /* inject a fake subroutine call to cctx_init */ |
1060 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1129 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1061 | |
1130 | |
|
|
1131 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1132 | transfer_tail (aTHX); |
|
|
1133 | |
1062 | /* 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 */ |
1063 | PL_restartop = PL_op; |
1135 | PL_restartop = PL_op; |
1064 | perl_run (PL_curinterp); |
1136 | perl_run (PL_curinterp); |
1065 | |
1137 | |
1066 | /* |
1138 | /* |
1067 | * 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 |
1068 | * 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) |
1069 | * 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 |
1070 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1142 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1071 | * coroutine as Coro has no such concept |
1143 | * coroutine as Coro has no such concept |
1072 | */ |
1144 | */ |
1073 | PL_top_env = main_top_env; |
1145 | PL_top_env = main_top_env; |
1074 | 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 | } |
1075 | } |
1148 | } |
1076 | |
1149 | |
1077 | static coro_cctx * |
1150 | static coro_cctx * |
1078 | cctx_new () |
1151 | cctx_new () |
1079 | { |
1152 | { |
1080 | 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 (); |
1081 | void *stack_start; |
1182 | void *stack_start; |
1082 | size_t stack_size; |
1183 | size_t stack_size; |
1083 | |
1184 | |
1084 | ++cctx_count; |
|
|
1085 | |
|
|
1086 | Newz (0, cctx, 1, coro_cctx); |
|
|
1087 | |
|
|
1088 | #if HAVE_MMAP |
1185 | #if HAVE_MMAP |
1089 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1186 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1090 | /* mmap supposedly does allocate-on-write for us */ |
1187 | /* mmap supposedly does allocate-on-write for us */ |
1091 | 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); |
1092 | |
1189 | |
1093 | if (cctx->sptr != (void *)-1) |
1190 | if (cctx->sptr != (void *)-1) |
1094 | { |
1191 | { |
1095 | # if CORO_STACKGUARD |
1192 | #if CORO_STACKGUARD |
1096 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1193 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1097 | # endif |
1194 | #endif |
1098 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1195 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1099 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1196 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1100 | cctx->flags |= CC_MAPPED; |
1197 | cctx->flags |= CC_MAPPED; |
1101 | } |
1198 | } |
1102 | else |
1199 | else |
1103 | #endif |
1200 | #endif |
1104 | { |
1201 | { |
1105 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1202 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1106 | New (0, cctx->sptr, coro_stacksize, long); |
1203 | New (0, cctx->sptr, cctx_stacksize, long); |
1107 | |
1204 | |
1108 | if (!cctx->sptr) |
1205 | if (!cctx->sptr) |
1109 | { |
1206 | { |
1110 | perror ("FATAL: unable to allocate stack for coroutine"); |
1207 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1111 | _exit (EXIT_FAILURE); |
1208 | _exit (EXIT_FAILURE); |
1112 | } |
1209 | } |
1113 | |
1210 | |
1114 | stack_start = cctx->sptr; |
1211 | stack_start = cctx->sptr; |
1115 | stack_size = cctx->ssize; |
1212 | stack_size = cctx->ssize; |
1116 | } |
1213 | } |
1117 | |
1214 | |
1118 | 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 | |
1119 | 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); |
1120 | |
1220 | |
1121 | return cctx; |
1221 | return cctx; |
1122 | } |
1222 | } |
1123 | |
1223 | |
… | |
… | |
1126 | { |
1226 | { |
1127 | if (!cctx) |
1227 | if (!cctx) |
1128 | return; |
1228 | return; |
1129 | |
1229 | |
1130 | --cctx_count; |
1230 | --cctx_count; |
|
|
1231 | coro_destroy (&cctx->cctx); |
1131 | |
1232 | |
|
|
1233 | /* coro_transfer creates new, empty cctx's */ |
|
|
1234 | if (cctx->sptr) |
|
|
1235 | { |
1132 | #if CORO_USE_VALGRIND |
1236 | #if CORO_USE_VALGRIND |
1133 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1237 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1134 | #endif |
1238 | #endif |
1135 | |
1239 | |
1136 | #if HAVE_MMAP |
1240 | #if HAVE_MMAP |
1137 | if (cctx->flags & CC_MAPPED) |
1241 | if (cctx->flags & CC_MAPPED) |
1138 | munmap (cctx->sptr, cctx->ssize); |
1242 | munmap (cctx->sptr, cctx->ssize); |
1139 | else |
1243 | else |
1140 | #endif |
1244 | #endif |
1141 | Safefree (cctx->sptr); |
1245 | Safefree (cctx->sptr); |
|
|
1246 | } |
1142 | |
1247 | |
1143 | Safefree (cctx); |
1248 | Safefree (cctx); |
1144 | } |
1249 | } |
1145 | |
1250 | |
1146 | /* wether this cctx should be destructed */ |
1251 | /* wether this cctx should be destructed */ |
1147 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1252 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1148 | |
1253 | |
1149 | static coro_cctx * |
1254 | static coro_cctx * |
1150 | cctx_get (pTHX) |
1255 | cctx_get (pTHX) |
1151 | { |
1256 | { |
1152 | while (expect_true (cctx_first)) |
1257 | while (expect_true (cctx_first)) |
… | |
… | |
1159 | return cctx; |
1264 | return cctx; |
1160 | |
1265 | |
1161 | cctx_destroy (cctx); |
1266 | cctx_destroy (cctx); |
1162 | } |
1267 | } |
1163 | |
1268 | |
1164 | return cctx_new (); |
1269 | return cctx_new_run (); |
1165 | } |
1270 | } |
1166 | |
1271 | |
1167 | static void |
1272 | static void |
1168 | cctx_put (coro_cctx *cctx) |
1273 | cctx_put (coro_cctx *cctx) |
1169 | { |
1274 | { |
|
|
1275 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1276 | |
1170 | /* free another cctx if overlimit */ |
1277 | /* free another cctx if overlimit */ |
1171 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
1278 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1172 | { |
1279 | { |
1173 | coro_cctx *first = cctx_first; |
1280 | coro_cctx *first = cctx_first; |
1174 | cctx_first = first->next; |
1281 | cctx_first = first->next; |
1175 | --cctx_idle; |
1282 | --cctx_idle; |
1176 | |
1283 | |
… | |
… | |
1185 | /** coroutine switching *****************************************************/ |
1292 | /** coroutine switching *****************************************************/ |
1186 | |
1293 | |
1187 | static void |
1294 | static void |
1188 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1295 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1189 | { |
1296 | { |
|
|
1297 | /* TODO: throwing up here is considered harmful */ |
|
|
1298 | |
1190 | if (expect_true (prev != next)) |
1299 | if (expect_true (prev != next)) |
1191 | { |
1300 | { |
1192 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1301 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1193 | 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,"); |
1194 | |
1303 | |
1195 | if (expect_false (next->flags & CF_RUNNING)) |
1304 | if (expect_false (next->flags & CF_RUNNING)) |
1196 | 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,"); |
1197 | |
1306 | |
1198 | if (expect_false (next->flags & CF_DESTROYED)) |
1307 | if (expect_false (next->flags & CF_DESTROYED)) |
1199 | 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,"); |
1200 | |
1309 | |
1201 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1310 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1202 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1311 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1203 | 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,"); |
1204 | #endif |
1313 | #endif |
1205 | } |
1314 | } |
1206 | } |
1315 | } |
1207 | |
1316 | |
1208 | /* always use the TRANSFER macro */ |
1317 | /* always use the TRANSFER macro */ |
1209 | static void NOINLINE |
1318 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1210 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1319 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1211 | { |
1320 | { |
1212 | dSTACKLEVEL; |
1321 | dSTACKLEVEL; |
1213 | |
1322 | |
1214 | /* sometimes transfer is only called to set idle_sp */ |
1323 | /* sometimes transfer is only called to set idle_sp */ |
… | |
… | |
1217 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1326 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1218 | 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 */ |
1219 | } |
1328 | } |
1220 | else if (expect_true (prev != next)) |
1329 | else if (expect_true (prev != next)) |
1221 | { |
1330 | { |
1222 | static volatile int has_throw; |
|
|
1223 | coro_cctx *prev__cctx; |
1331 | coro_cctx *prev__cctx; |
1224 | |
1332 | |
1225 | if (expect_false (prev->flags & CF_NEW)) |
1333 | if (expect_false (prev->flags & CF_NEW)) |
1226 | { |
1334 | { |
1227 | /* create a new empty context */ |
1335 | /* create a new empty/source context */ |
1228 | Newz (0, prev->cctx, 1, coro_cctx); |
1336 | prev->cctx = cctx_new_empty (); |
1229 | prev->flags &= ~CF_NEW; |
1337 | prev->flags &= ~CF_NEW; |
1230 | prev->flags |= CF_RUNNING; |
1338 | prev->flags |= CF_RUNNING; |
1231 | } |
1339 | } |
1232 | |
1340 | |
1233 | prev->flags &= ~CF_RUNNING; |
1341 | prev->flags &= ~CF_RUNNING; |
1234 | next->flags |= CF_RUNNING; |
1342 | next->flags |= CF_RUNNING; |
1235 | |
|
|
1236 | LOCK; |
|
|
1237 | |
1343 | |
1238 | /* first get rid of the old state */ |
1344 | /* first get rid of the old state */ |
1239 | save_perl (aTHX_ prev); |
1345 | save_perl (aTHX_ prev); |
1240 | |
1346 | |
1241 | if (expect_false (next->flags & CF_NEW)) |
1347 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1248 | else |
1354 | else |
1249 | load_perl (aTHX_ next); |
1355 | load_perl (aTHX_ next); |
1250 | |
1356 | |
1251 | prev__cctx = prev->cctx; |
1357 | prev__cctx = prev->cctx; |
1252 | |
1358 | |
1253 | /* possibly "free" the cctx */ |
1359 | /* possibly untie and reuse the cctx */ |
1254 | if (expect_true ( |
1360 | if (expect_true ( |
1255 | prev__cctx->idle_sp == STACKLEVEL |
1361 | prev__cctx->idle_sp == STACKLEVEL |
1256 | && !(prev__cctx->flags & CC_TRACE) |
1362 | && !(prev__cctx->flags & CC_TRACE) |
1257 | && !force_cctx |
1363 | && !force_cctx |
1258 | )) |
1364 | )) |
1259 | { |
1365 | { |
1260 | /* 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 */ |
1261 | 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)); |
1262 | |
1368 | |
1263 | prev->cctx = 0; |
1369 | prev->cctx = 0; |
1264 | |
1370 | |
1265 | /* 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 */ |
1266 | /* 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 */ |
… | |
… | |
1273 | |
1379 | |
1274 | ++next->usecount; |
1380 | ++next->usecount; |
1275 | |
1381 | |
1276 | if (expect_true (!next->cctx)) |
1382 | if (expect_true (!next->cctx)) |
1277 | next->cctx = cctx_get (aTHX); |
1383 | next->cctx = cctx_get (aTHX); |
1278 | |
|
|
1279 | has_throw = !!next->throw; |
|
|
1280 | |
1384 | |
1281 | if (expect_false (prev__cctx != next->cctx)) |
1385 | if (expect_false (prev__cctx != next->cctx)) |
1282 | { |
1386 | { |
1283 | prev__cctx->top_env = PL_top_env; |
1387 | prev__cctx->top_env = PL_top_env; |
1284 | PL_top_env = next->cctx->top_env; |
1388 | PL_top_env = next->cctx->top_env; |
1285 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1389 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1286 | } |
1390 | } |
1287 | |
1391 | |
1288 | free_coro_mortal (aTHX); |
1392 | transfer_tail (aTHX); |
1289 | UNLOCK; |
|
|
1290 | |
|
|
1291 | if (expect_false (has_throw)) |
|
|
1292 | { |
|
|
1293 | struct coro *coro = SvSTATE (coro_current); |
|
|
1294 | |
|
|
1295 | if (coro->throw) |
|
|
1296 | { |
|
|
1297 | SV *exception = coro->throw; |
|
|
1298 | coro->throw = 0; |
|
|
1299 | sv_setsv (ERRSV, exception); |
|
|
1300 | croak (0); |
|
|
1301 | } |
|
|
1302 | } |
|
|
1303 | } |
1393 | } |
1304 | } |
1394 | } |
1305 | |
|
|
1306 | struct transfer_args |
|
|
1307 | { |
|
|
1308 | struct coro *prev, *next; |
|
|
1309 | }; |
|
|
1310 | |
1395 | |
1311 | #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)) |
1312 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1397 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1313 | |
1398 | |
1314 | /** high level stuff ********************************************************/ |
1399 | /** high level stuff ********************************************************/ |
… | |
… | |
1316 | static int |
1401 | static int |
1317 | coro_state_destroy (pTHX_ struct coro *coro) |
1402 | coro_state_destroy (pTHX_ struct coro *coro) |
1318 | { |
1403 | { |
1319 | if (coro->flags & CF_DESTROYED) |
1404 | if (coro->flags & CF_DESTROYED) |
1320 | return 0; |
1405 | return 0; |
|
|
1406 | |
|
|
1407 | if (coro->on_destroy) |
|
|
1408 | coro->on_destroy (aTHX_ coro); |
1321 | |
1409 | |
1322 | coro->flags |= CF_DESTROYED; |
1410 | coro->flags |= CF_DESTROYED; |
1323 | |
1411 | |
1324 | if (coro->flags & CF_READY) |
1412 | if (coro->flags & CF_READY) |
1325 | { |
1413 | { |
1326 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1414 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1327 | /* alternative: look through all ready queues and remove the coro */ |
1415 | /* alternative: look through all ready queues and remove the coro */ |
1328 | LOCK; |
|
|
1329 | --coro_nready; |
1416 | --coro_nready; |
1330 | UNLOCK; |
|
|
1331 | } |
1417 | } |
1332 | else |
1418 | else |
1333 | 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 */ |
1334 | |
1420 | |
1335 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1421 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1336 | { |
1422 | { |
1337 | struct coro temp; |
1423 | struct coro temp; |
1338 | |
1424 | |
1339 | if (coro->flags & CF_RUNNING) |
1425 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1340 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1341 | |
1426 | |
1342 | save_perl (aTHX_ &temp); |
1427 | save_perl (aTHX_ &temp); |
1343 | load_perl (aTHX_ coro); |
1428 | load_perl (aTHX_ coro); |
1344 | |
1429 | |
1345 | coro_destroy (aTHX_ coro); |
1430 | coro_destruct (aTHX_ coro); |
1346 | |
1431 | |
1347 | load_perl (aTHX_ &temp); |
1432 | load_perl (aTHX_ &temp); |
1348 | |
1433 | |
1349 | coro->slot = 0; |
1434 | coro->slot = 0; |
1350 | } |
1435 | } |
… | |
… | |
1396 | # define MGf_DUP 0 |
1481 | # define MGf_DUP 0 |
1397 | #endif |
1482 | #endif |
1398 | }; |
1483 | }; |
1399 | |
1484 | |
1400 | static void |
1485 | static void |
1401 | 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) |
1402 | { |
1487 | { |
1403 | ta->prev = SvSTATE (prev_sv); |
1488 | ta->prev = SvSTATE (prev_sv); |
1404 | ta->next = SvSTATE (next_sv); |
1489 | ta->next = SvSTATE (next_sv); |
1405 | TRANSFER_CHECK (*ta); |
1490 | TRANSFER_CHECK (*ta); |
1406 | } |
1491 | } |
1407 | |
1492 | |
1408 | static void |
1493 | static void |
1409 | api_transfer (SV *prev_sv, SV *next_sv) |
1494 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1410 | { |
1495 | { |
1411 | dTHX; |
|
|
1412 | struct transfer_args ta; |
1496 | struct coro_transfer_args ta; |
1413 | |
1497 | |
1414 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1498 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1415 | TRANSFER (ta, 1); |
1499 | TRANSFER (ta, 1); |
1416 | } |
1500 | } |
1417 | |
1501 | |
1418 | /** Coro ********************************************************************/ |
1502 | /** Coro ********************************************************************/ |
1419 | |
1503 | |
1420 | static void |
1504 | INLINE void |
1421 | coro_enq (pTHX_ SV *coro_sv) |
1505 | coro_enq (pTHX_ struct coro *coro) |
1422 | { |
1506 | { |
1423 | 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)); |
1424 | } |
1508 | } |
1425 | |
1509 | |
1426 | static SV * |
1510 | INLINE SV * |
1427 | coro_deq (pTHX) |
1511 | coro_deq (pTHX) |
1428 | { |
1512 | { |
1429 | int prio; |
1513 | int prio; |
1430 | |
1514 | |
1431 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1515 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1434 | |
1518 | |
1435 | return 0; |
1519 | return 0; |
1436 | } |
1520 | } |
1437 | |
1521 | |
1438 | static int |
1522 | static int |
1439 | api_ready (SV *coro_sv) |
1523 | api_ready (pTHX_ SV *coro_sv) |
1440 | { |
1524 | { |
1441 | dTHX; |
|
|
1442 | struct coro *coro; |
1525 | struct coro *coro; |
1443 | SV *sv_hook; |
1526 | SV *sv_hook; |
1444 | void (*xs_hook)(void); |
1527 | void (*xs_hook)(void); |
1445 | |
1528 | |
1446 | if (SvROK (coro_sv)) |
1529 | if (SvROK (coro_sv)) |
… | |
… | |
1451 | if (coro->flags & CF_READY) |
1534 | if (coro->flags & CF_READY) |
1452 | return 0; |
1535 | return 0; |
1453 | |
1536 | |
1454 | coro->flags |= CF_READY; |
1537 | coro->flags |= CF_READY; |
1455 | |
1538 | |
1456 | LOCK; |
|
|
1457 | |
|
|
1458 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1539 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1459 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1540 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1460 | |
1541 | |
1461 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1542 | coro_enq (aTHX_ coro); |
1462 | ++coro_nready; |
1543 | ++coro_nready; |
1463 | |
1544 | |
1464 | UNLOCK; |
|
|
1465 | |
|
|
1466 | if (sv_hook) |
1545 | if (sv_hook) |
1467 | { |
1546 | { |
1468 | dSP; |
1547 | dSP; |
1469 | |
1548 | |
1470 | ENTER; |
1549 | ENTER; |
1471 | SAVETMPS; |
1550 | SAVETMPS; |
1472 | |
1551 | |
1473 | PUSHMARK (SP); |
1552 | PUSHMARK (SP); |
1474 | PUTBACK; |
1553 | PUTBACK; |
1475 | call_sv (sv_hook, G_DISCARD); |
1554 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1476 | SPAGAIN; |
|
|
1477 | |
1555 | |
1478 | FREETMPS; |
1556 | FREETMPS; |
1479 | LEAVE; |
1557 | LEAVE; |
1480 | } |
1558 | } |
1481 | |
1559 | |
… | |
… | |
1484 | |
1562 | |
1485 | return 1; |
1563 | return 1; |
1486 | } |
1564 | } |
1487 | |
1565 | |
1488 | static int |
1566 | static int |
1489 | api_is_ready (SV *coro_sv) |
1567 | api_is_ready (pTHX_ SV *coro_sv) |
1490 | { |
1568 | { |
1491 | dTHX; |
|
|
1492 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1569 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1493 | } |
1570 | } |
1494 | |
1571 | |
1495 | static void |
1572 | INLINE void |
1496 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1573 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1497 | { |
1574 | { |
1498 | SV *prev_sv, *next_sv; |
1575 | SV *prev_sv, *next_sv; |
1499 | |
1576 | |
1500 | for (;;) |
1577 | for (;;) |
1501 | { |
1578 | { |
1502 | LOCK; |
|
|
1503 | next_sv = coro_deq (aTHX); |
1579 | next_sv = coro_deq (aTHX); |
1504 | |
1580 | |
1505 | /* nothing to schedule: call the idle handler */ |
1581 | /* nothing to schedule: call the idle handler */ |
1506 | if (expect_false (!next_sv)) |
1582 | if (expect_false (!next_sv)) |
1507 | { |
1583 | { |
1508 | dSP; |
1584 | dSP; |
1509 | UNLOCK; |
|
|
1510 | |
1585 | |
1511 | ENTER; |
1586 | ENTER; |
1512 | SAVETMPS; |
1587 | SAVETMPS; |
1513 | |
1588 | |
1514 | PUSHMARK (SP); |
1589 | PUSHMARK (SP); |
1515 | PUTBACK; |
1590 | PUTBACK; |
1516 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1591 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1517 | SPAGAIN; |
|
|
1518 | |
1592 | |
1519 | FREETMPS; |
1593 | FREETMPS; |
1520 | LEAVE; |
1594 | LEAVE; |
1521 | continue; |
1595 | continue; |
1522 | } |
1596 | } |
1523 | |
1597 | |
1524 | ta->next = SvSTATE (next_sv); |
1598 | ta->next = SvSTATE_hv (next_sv); |
1525 | |
1599 | |
1526 | /* cannot transfer to destroyed coros, skip and look for next */ |
1600 | /* cannot transfer to destroyed coros, skip and look for next */ |
1527 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1601 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1528 | { |
1602 | { |
1529 | UNLOCK; |
|
|
1530 | SvREFCNT_dec (next_sv); |
1603 | SvREFCNT_dec (next_sv); |
1531 | /* coro_nready is already taken care of by destroy */ |
1604 | /* coro_nready has already been taken care of by destroy */ |
1532 | continue; |
1605 | continue; |
1533 | } |
1606 | } |
1534 | |
1607 | |
1535 | --coro_nready; |
1608 | --coro_nready; |
1536 | UNLOCK; |
|
|
1537 | break; |
1609 | break; |
1538 | } |
1610 | } |
1539 | |
1611 | |
1540 | /* free this only after the transfer */ |
1612 | /* free this only after the transfer */ |
1541 | prev_sv = SvRV (coro_current); |
1613 | prev_sv = SvRV (coro_current); |
1542 | ta->prev = SvSTATE (prev_sv); |
1614 | ta->prev = SvSTATE_hv (prev_sv); |
1543 | TRANSFER_CHECK (*ta); |
1615 | TRANSFER_CHECK (*ta); |
1544 | 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)); |
1545 | ta->next->flags &= ~CF_READY; |
1617 | ta->next->flags &= ~CF_READY; |
1546 | SvRV_set (coro_current, next_sv); |
1618 | SvRV_set (coro_current, next_sv); |
1547 | |
1619 | |
1548 | LOCK; |
|
|
1549 | free_coro_mortal (aTHX); |
1620 | free_coro_mortal (aTHX); |
1550 | coro_mortal = prev_sv; |
1621 | coro_mortal = prev_sv; |
1551 | UNLOCK; |
|
|
1552 | } |
1622 | } |
1553 | |
1623 | |
1554 | static void |
1624 | INLINE void |
1555 | prepare_cede (pTHX_ struct transfer_args *ta) |
1625 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1556 | { |
1626 | { |
1557 | api_ready (coro_current); |
1627 | api_ready (aTHX_ coro_current); |
1558 | prepare_schedule (aTHX_ ta); |
1628 | prepare_schedule (aTHX_ ta); |
1559 | } |
1629 | } |
1560 | |
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 | |
1561 | static int |
1654 | static int |
1562 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1655 | api_cede (pTHX) |
1563 | { |
1656 | { |
1564 | if (coro_nready) |
1657 | struct coro_transfer_args ta; |
1565 | { |
1658 | |
1566 | SV *prev = SvRV (coro_current); |
|
|
1567 | prepare_schedule (aTHX_ ta); |
1659 | prepare_cede (aTHX_ &ta); |
1568 | api_ready (prev); |
1660 | |
|
|
1661 | if (expect_true (ta.prev != ta.next)) |
|
|
1662 | { |
|
|
1663 | TRANSFER (ta, 1); |
1569 | return 1; |
1664 | return 1; |
1570 | } |
1665 | } |
1571 | else |
1666 | else |
1572 | return 0; |
1667 | return 0; |
1573 | } |
1668 | } |
1574 | |
1669 | |
1575 | static void |
|
|
1576 | api_schedule (void) |
|
|
1577 | { |
|
|
1578 | dTHX; |
|
|
1579 | struct transfer_args ta; |
|
|
1580 | |
|
|
1581 | prepare_schedule (aTHX_ &ta); |
|
|
1582 | TRANSFER (ta, 1); |
|
|
1583 | } |
|
|
1584 | |
|
|
1585 | static int |
1670 | static int |
1586 | api_cede (void) |
1671 | api_cede_notself (pTHX) |
1587 | { |
1672 | { |
1588 | dTHX; |
1673 | if (coro_nready) |
|
|
1674 | { |
1589 | struct transfer_args ta; |
1675 | struct coro_transfer_args ta; |
1590 | |
1676 | |
1591 | prepare_cede (aTHX_ &ta); |
1677 | prepare_cede_notself (aTHX_ &ta); |
1592 | |
|
|
1593 | if (expect_true (ta.prev != ta.next)) |
|
|
1594 | { |
|
|
1595 | TRANSFER (ta, 1); |
1678 | TRANSFER (ta, 1); |
1596 | return 1; |
1679 | return 1; |
1597 | } |
1680 | } |
1598 | else |
1681 | else |
1599 | return 0; |
1682 | return 0; |
1600 | } |
1683 | } |
1601 | |
1684 | |
1602 | static int |
1685 | static void |
1603 | api_cede_notself (void) |
|
|
1604 | { |
|
|
1605 | dTHX; |
|
|
1606 | struct transfer_args ta; |
|
|
1607 | |
|
|
1608 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1609 | { |
|
|
1610 | TRANSFER (ta, 1); |
|
|
1611 | return 1; |
|
|
1612 | } |
|
|
1613 | else |
|
|
1614 | return 0; |
|
|
1615 | } |
|
|
1616 | |
|
|
1617 | static void |
|
|
1618 | api_trace (SV *coro_sv, int flags) |
1686 | api_trace (pTHX_ SV *coro_sv, int flags) |
1619 | { |
1687 | { |
1620 | dTHX; |
|
|
1621 | struct coro *coro = SvSTATE (coro_sv); |
1688 | struct coro *coro = SvSTATE (coro_sv); |
1622 | |
1689 | |
1623 | if (flags & CC_TRACE) |
1690 | if (flags & CC_TRACE) |
1624 | { |
1691 | { |
1625 | if (!coro->cctx) |
1692 | if (!coro->cctx) |
1626 | coro->cctx = cctx_new (); |
1693 | coro->cctx = cctx_new_run (); |
1627 | else if (!(coro->cctx->flags & CC_TRACE)) |
1694 | else if (!(coro->cctx->flags & CC_TRACE)) |
1628 | croak ("cannot enable tracing on coroutine with custom stack"); |
1695 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1629 | |
1696 | |
1630 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1697 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1631 | } |
1698 | } |
1632 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1699 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1633 | { |
1700 | { |
… | |
… | |
1638 | else |
1705 | else |
1639 | coro->slot->runops = RUNOPS_DEFAULT; |
1706 | coro->slot->runops = RUNOPS_DEFAULT; |
1640 | } |
1707 | } |
1641 | } |
1708 | } |
1642 | |
1709 | |
|
|
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 | |
1643 | static int |
1740 | static void |
1644 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1741 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
1645 | { |
1742 | { |
1646 | AV *padlist; |
1743 | SV **arg = (SV **)slf_frame.data; |
1647 | AV *av = (AV *)mg->mg_obj; |
|
|
1648 | |
1744 | |
1649 | abort (); |
1745 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
1650 | |
|
|
1651 | return 0; |
|
|
1652 | } |
1746 | } |
1653 | |
1747 | |
1654 | static MGVTBL coro_gensub_vtbl = { |
1748 | static void |
1655 | 0, 0, 0, 0, |
1749 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1656 | coro_gensub_free |
1750 | { |
1657 | }; |
1751 | if (items != 2) |
|
|
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 | } |
1658 | |
1923 | |
1659 | /*****************************************************************************/ |
1924 | /*****************************************************************************/ |
1660 | /* PerlIO::cede */ |
1925 | /* PerlIO::cede */ |
1661 | |
1926 | |
1662 | typedef struct |
1927 | typedef struct |
… | |
… | |
1690 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1955 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1691 | double now = nvtime (); |
1956 | double now = nvtime (); |
1692 | |
1957 | |
1693 | if (now >= self->next) |
1958 | if (now >= self->next) |
1694 | { |
1959 | { |
1695 | api_cede (); |
1960 | api_cede (aTHX); |
1696 | self->next = now + self->every; |
1961 | self->next = now + self->every; |
1697 | } |
1962 | } |
1698 | |
1963 | |
1699 | return PerlIOBuf_flush (aTHX_ f); |
1964 | return PerlIOBuf_flush (aTHX_ f); |
1700 | } |
1965 | } |
… | |
… | |
1729 | PerlIOBuf_get_ptr, |
1994 | PerlIOBuf_get_ptr, |
1730 | PerlIOBuf_get_cnt, |
1995 | PerlIOBuf_get_cnt, |
1731 | PerlIOBuf_set_ptrcnt, |
1996 | PerlIOBuf_set_ptrcnt, |
1732 | }; |
1997 | }; |
1733 | |
1998 | |
|
|
1999 | /*****************************************************************************/ |
|
|
2000 | /* Coro::Semaphore */ |
|
|
2001 | |
|
|
2002 | static void |
|
|
2003 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2004 | { |
|
|
2005 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2006 | IV count = SvIVX (count_sv); |
|
|
2007 | |
|
|
2008 | count += adjust; |
|
|
2009 | SvIVX (count_sv) = count; |
|
|
2010 | |
|
|
2011 | /* now wake up as many waiters as are expected to lock */ |
|
|
2012 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2013 | { |
|
|
2014 | SV *cb; |
|
|
2015 | |
|
|
2016 | /* swap first two elements so we can shift a waiter */ |
|
|
2017 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2018 | AvARRAY (av)[1] = count_sv; |
|
|
2019 | cb = av_shift (av); |
|
|
2020 | |
|
|
2021 | if (SvOBJECT (cb)) |
|
|
2022 | api_ready (aTHX_ cb); |
|
|
2023 | else |
|
|
2024 | croak ("callbacks not yet supported"); |
|
|
2025 | |
|
|
2026 | SvREFCNT_dec (cb); |
|
|
2027 | |
|
|
2028 | --count; |
|
|
2029 | } |
|
|
2030 | } |
|
|
2031 | |
|
|
2032 | static void |
|
|
2033 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2034 | { |
|
|
2035 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2036 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2037 | } |
|
|
2038 | |
|
|
2039 | static int |
|
|
2040 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2041 | { |
|
|
2042 | AV *av = (AV *)frame->data; |
|
|
2043 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2044 | |
|
|
2045 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2046 | if (CORO_THROW) |
|
|
2047 | return 0; |
|
|
2048 | else if (SvIVX (count_sv) > 0) |
|
|
2049 | { |
|
|
2050 | SvSTATE_current->on_destroy = 0; |
|
|
2051 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2052 | return 0; |
|
|
2053 | } |
|
|
2054 | else |
|
|
2055 | { |
|
|
2056 | int i; |
|
|
2057 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2058 | /* waiters list and only add us if we aren't in there already */ |
|
|
2059 | /* this avoids some degenerate memory usage cases */ |
|
|
2060 | |
|
|
2061 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2062 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2063 | return 1; |
|
|
2064 | |
|
|
2065 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2066 | return 1; |
|
|
2067 | } |
|
|
2068 | } |
|
|
2069 | |
|
|
2070 | static void |
|
|
2071 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2072 | { |
|
|
2073 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2074 | |
|
|
2075 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2076 | { |
|
|
2077 | frame->data = (void *)av; |
|
|
2078 | frame->prepare = prepare_nop; |
|
|
2079 | } |
|
|
2080 | else |
|
|
2081 | { |
|
|
2082 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2083 | |
|
|
2084 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2085 | frame->prepare = prepare_schedule; |
|
|
2086 | |
|
|
2087 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2088 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2089 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2090 | } |
|
|
2091 | |
|
|
2092 | frame->check = slf_check_semaphore_down; |
|
|
2093 | |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | /*****************************************************************************/ |
|
|
2097 | /* gensub: simple closure generation utility */ |
|
|
2098 | |
|
|
2099 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2100 | |
|
|
2101 | /* create a closure from XS, returns a code reference */ |
|
|
2102 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2103 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2104 | static SV * |
|
|
2105 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2106 | { |
|
|
2107 | CV *cv = (CV *)newSV (0); |
|
|
2108 | |
|
|
2109 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2110 | |
|
|
2111 | CvANON_on (cv); |
|
|
2112 | CvISXSUB_on (cv); |
|
|
2113 | CvXSUB (cv) = xsub; |
|
|
2114 | GENSUB_ARG = arg; |
|
|
2115 | |
|
|
2116 | return newRV_noinc ((SV *)cv); |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | /*****************************************************************************/ |
|
|
2120 | /* Coro::AIO */ |
|
|
2121 | |
|
|
2122 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2123 | |
|
|
2124 | /* helper storage struct */ |
|
|
2125 | struct io_state |
|
|
2126 | { |
|
|
2127 | int errorno; |
|
|
2128 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2129 | int laststatval; |
|
|
2130 | Stat_t statcache; |
|
|
2131 | }; |
|
|
2132 | |
|
|
2133 | static void |
|
|
2134 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2135 | { |
|
|
2136 | dXSARGS; |
|
|
2137 | AV *state = (AV *)GENSUB_ARG; |
|
|
2138 | SV *coro = av_pop (state); |
|
|
2139 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2140 | |
|
|
2141 | av_extend (state, items); |
|
|
2142 | |
|
|
2143 | sv_upgrade (data_sv, SVt_PV); |
|
|
2144 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2145 | SvPOK_only (data_sv); |
|
|
2146 | |
|
|
2147 | { |
|
|
2148 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2149 | |
|
|
2150 | data->errorno = errno; |
|
|
2151 | data->laststype = PL_laststype; |
|
|
2152 | data->laststatval = PL_laststatval; |
|
|
2153 | data->statcache = PL_statcache; |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2157 | { |
|
|
2158 | int i; |
|
|
2159 | |
|
|
2160 | for (i = 0; i < items; ++i) |
|
|
2161 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | av_push (state, data_sv); |
|
|
2165 | |
|
|
2166 | api_ready (aTHX_ coro); |
|
|
2167 | SvREFCNT_dec (coro); |
|
|
2168 | SvREFCNT_dec ((AV *)state); |
|
|
2169 | } |
|
|
2170 | |
|
|
2171 | static int |
|
|
2172 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2173 | { |
|
|
2174 | AV *state = (AV *)frame->data; |
|
|
2175 | |
|
|
2176 | /* if we are about to throw, return early */ |
|
|
2177 | /* this does not cancel the aio request, but at least */ |
|
|
2178 | /* it quickly returns */ |
|
|
2179 | if (CORO_THROW) |
|
|
2180 | return 0; |
|
|
2181 | |
|
|
2182 | /* one element that is an RV? repeat! */ |
|
|
2183 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2184 | return 1; |
|
|
2185 | |
|
|
2186 | /* restore status */ |
|
|
2187 | { |
|
|
2188 | SV *data_sv = av_pop (state); |
|
|
2189 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2190 | |
|
|
2191 | errno = data->errorno; |
|
|
2192 | PL_laststype = data->laststype; |
|
|
2193 | PL_laststatval = data->laststatval; |
|
|
2194 | PL_statcache = data->statcache; |
|
|
2195 | |
|
|
2196 | SvREFCNT_dec (data_sv); |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | /* push result values */ |
|
|
2200 | { |
|
|
2201 | dSP; |
|
|
2202 | int i; |
|
|
2203 | |
|
|
2204 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2205 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2206 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2207 | |
|
|
2208 | PUTBACK; |
|
|
2209 | } |
|
|
2210 | |
|
|
2211 | return 0; |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | static void |
|
|
2215 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2216 | { |
|
|
2217 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2218 | SV *coro_hv = SvRV (coro_current); |
|
|
2219 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2220 | |
|
|
2221 | /* put our coroutine id on the state arg */ |
|
|
2222 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2223 | |
|
|
2224 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2225 | if (coro->prio) |
|
|
2226 | { |
|
|
2227 | dSP; |
|
|
2228 | |
|
|
2229 | static SV *prio_cv; |
|
|
2230 | static SV *prio_sv; |
|
|
2231 | |
|
|
2232 | if (expect_false (!prio_cv)) |
|
|
2233 | { |
|
|
2234 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2235 | prio_sv = newSViv (0); |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | PUSHMARK (SP); |
|
|
2239 | sv_setiv (prio_sv, coro->prio); |
|
|
2240 | XPUSHs (prio_sv); |
|
|
2241 | |
|
|
2242 | PUTBACK; |
|
|
2243 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2244 | } |
|
|
2245 | |
|
|
2246 | /* now call the original request */ |
|
|
2247 | { |
|
|
2248 | dSP; |
|
|
2249 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2250 | int i; |
|
|
2251 | |
|
|
2252 | PUSHMARK (SP); |
|
|
2253 | |
|
|
2254 | /* first push all args to the stack */ |
|
|
2255 | EXTEND (SP, items + 1); |
|
|
2256 | |
|
|
2257 | for (i = 0; i < items; ++i) |
|
|
2258 | PUSHs (arg [i]); |
|
|
2259 | |
|
|
2260 | /* now push the callback closure */ |
|
|
2261 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2262 | |
|
|
2263 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2264 | PUTBACK; |
|
|
2265 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2266 | } |
|
|
2267 | |
|
|
2268 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2269 | frame->data = (void *)state; |
|
|
2270 | frame->prepare = prepare_schedule; |
|
|
2271 | frame->check = slf_check_aio_req; |
|
|
2272 | } |
|
|
2273 | |
|
|
2274 | static void |
|
|
2275 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2276 | { |
|
|
2277 | dXSARGS; |
|
|
2278 | |
|
|
2279 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2280 | |
|
|
2281 | XSRETURN_EMPTY; |
|
|
2282 | } |
|
|
2283 | |
|
|
2284 | /*****************************************************************************/ |
1734 | |
2285 | |
1735 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2286 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1736 | |
2287 | |
1737 | PROTOTYPES: DISABLE |
2288 | PROTOTYPES: DISABLE |
1738 | |
2289 | |
1739 | BOOT: |
2290 | BOOT: |
1740 | { |
2291 | { |
1741 | #ifdef USE_ITHREADS |
2292 | #ifdef USE_ITHREADS |
1742 | MUTEX_INIT (&coro_mutex); |
2293 | # if CORO_PTHREAD |
|
|
2294 | coro_thx = PERL_GET_CONTEXT; |
|
|
2295 | # endif |
1743 | #endif |
2296 | #endif |
1744 | BOOT_PAGESIZE; |
2297 | BOOT_PAGESIZE; |
1745 | |
2298 | |
1746 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2299 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1747 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2300 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
… | |
… | |
1765 | main_top_env = PL_top_env; |
2318 | main_top_env = PL_top_env; |
1766 | |
2319 | |
1767 | while (main_top_env->je_prev) |
2320 | while (main_top_env->je_prev) |
1768 | main_top_env = main_top_env->je_prev; |
2321 | main_top_env = main_top_env->je_prev; |
1769 | |
2322 | |
|
|
2323 | { |
|
|
2324 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2325 | |
|
|
2326 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2327 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2328 | newSVpv ("coro_slf", 0), 0); |
|
|
2329 | |
|
|
2330 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2331 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2332 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2333 | } |
|
|
2334 | |
1770 | coroapi.ver = CORO_API_VERSION; |
2335 | coroapi.ver = CORO_API_VERSION; |
1771 | coroapi.rev = CORO_API_REVISION; |
2336 | coroapi.rev = CORO_API_REVISION; |
|
|
2337 | |
1772 | coroapi.transfer = api_transfer; |
2338 | coroapi.transfer = api_transfer; |
|
|
2339 | |
|
|
2340 | coroapi.sv_state = SvSTATE_; |
|
|
2341 | coroapi.execute_slf = api_execute_slf; |
|
|
2342 | coroapi.prepare_nop = prepare_nop; |
|
|
2343 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2344 | coroapi.prepare_cede = prepare_cede; |
|
|
2345 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1773 | |
2346 | |
1774 | { |
2347 | { |
1775 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2348 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1776 | |
2349 | |
1777 | if (!svp) croak ("Time::HiRes is required"); |
2350 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
1810 | av_push (coro->args, newSVsv (ST (i))); |
2383 | av_push (coro->args, newSVsv (ST (i))); |
1811 | } |
2384 | } |
1812 | OUTPUT: |
2385 | OUTPUT: |
1813 | RETVAL |
2386 | RETVAL |
1814 | |
2387 | |
1815 | # these not obviously related functions are all rolled into the same xs |
|
|
1816 | # function to increase chances that they all will call transfer with the same |
|
|
1817 | # stack offset |
|
|
1818 | void |
2388 | void |
1819 | _set_stacklevel (...) |
2389 | transfer (...) |
1820 | ALIAS: |
2390 | PROTOTYPE: $$ |
1821 | Coro::State::transfer = 1 |
2391 | CODE: |
1822 | Coro::schedule = 2 |
2392 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1823 | Coro::cede = 3 |
|
|
1824 | Coro::cede_notself = 4 |
|
|
1825 | CODE: |
|
|
1826 | { |
|
|
1827 | struct transfer_args ta; |
|
|
1828 | |
|
|
1829 | PUTBACK; |
|
|
1830 | switch (ix) |
|
|
1831 | { |
|
|
1832 | case 0: |
|
|
1833 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1834 | ta.next = 0; |
|
|
1835 | break; |
|
|
1836 | |
|
|
1837 | case 1: |
|
|
1838 | if (items != 2) |
|
|
1839 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1840 | |
|
|
1841 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1842 | break; |
|
|
1843 | |
|
|
1844 | case 2: |
|
|
1845 | prepare_schedule (aTHX_ &ta); |
|
|
1846 | break; |
|
|
1847 | |
|
|
1848 | case 3: |
|
|
1849 | prepare_cede (aTHX_ &ta); |
|
|
1850 | break; |
|
|
1851 | |
|
|
1852 | case 4: |
|
|
1853 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1854 | XSRETURN_EMPTY; |
|
|
1855 | |
|
|
1856 | break; |
|
|
1857 | } |
|
|
1858 | SPAGAIN; |
|
|
1859 | |
|
|
1860 | BARRIER; |
|
|
1861 | PUTBACK; |
|
|
1862 | TRANSFER (ta, 0); |
|
|
1863 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1864 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1865 | } |
|
|
1866 | |
2393 | |
1867 | bool |
2394 | bool |
1868 | _destroy (SV *coro_sv) |
2395 | _destroy (SV *coro_sv) |
1869 | CODE: |
2396 | CODE: |
1870 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2397 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1877 | CODE: |
2404 | CODE: |
1878 | _exit (code); |
2405 | _exit (code); |
1879 | |
2406 | |
1880 | int |
2407 | int |
1881 | cctx_stacksize (int new_stacksize = 0) |
2408 | cctx_stacksize (int new_stacksize = 0) |
|
|
2409 | PROTOTYPE: ;$ |
1882 | CODE: |
2410 | CODE: |
1883 | RETVAL = coro_stacksize; |
2411 | RETVAL = cctx_stacksize; |
1884 | if (new_stacksize) |
2412 | if (new_stacksize) |
|
|
2413 | { |
1885 | coro_stacksize = new_stacksize; |
2414 | cctx_stacksize = new_stacksize; |
|
|
2415 | ++cctx_gen; |
|
|
2416 | } |
1886 | OUTPUT: |
2417 | OUTPUT: |
1887 | RETVAL |
2418 | RETVAL |
1888 | |
2419 | |
1889 | int |
2420 | int |
|
|
2421 | cctx_max_idle (int max_idle = 0) |
|
|
2422 | PROTOTYPE: ;$ |
|
|
2423 | CODE: |
|
|
2424 | RETVAL = cctx_max_idle; |
|
|
2425 | if (max_idle > 1) |
|
|
2426 | cctx_max_idle = max_idle; |
|
|
2427 | OUTPUT: |
|
|
2428 | RETVAL |
|
|
2429 | |
|
|
2430 | int |
1890 | cctx_count () |
2431 | cctx_count () |
|
|
2432 | PROTOTYPE: |
1891 | CODE: |
2433 | CODE: |
1892 | RETVAL = cctx_count; |
2434 | RETVAL = cctx_count; |
1893 | OUTPUT: |
2435 | OUTPUT: |
1894 | RETVAL |
2436 | RETVAL |
1895 | |
2437 | |
1896 | int |
2438 | int |
1897 | cctx_idle () |
2439 | cctx_idle () |
|
|
2440 | PROTOTYPE: |
1898 | CODE: |
2441 | CODE: |
1899 | RETVAL = cctx_idle; |
2442 | RETVAL = cctx_idle; |
1900 | OUTPUT: |
2443 | OUTPUT: |
1901 | RETVAL |
2444 | RETVAL |
1902 | |
2445 | |
1903 | void |
2446 | void |
1904 | list () |
2447 | list () |
|
|
2448 | PROTOTYPE: |
1905 | PPCODE: |
2449 | PPCODE: |
1906 | { |
2450 | { |
1907 | struct coro *coro; |
2451 | struct coro *coro; |
1908 | for (coro = coro_first; coro; coro = coro->next) |
2452 | for (coro = coro_first; coro; coro = coro->next) |
1909 | if (coro->hv) |
2453 | if (coro->hv) |
… | |
… | |
1968 | RETVAL = boolSV (coro->flags & ix); |
2512 | RETVAL = boolSV (coro->flags & ix); |
1969 | OUTPUT: |
2513 | OUTPUT: |
1970 | RETVAL |
2514 | RETVAL |
1971 | |
2515 | |
1972 | void |
2516 | void |
|
|
2517 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2518 | PROTOTYPE: $;$ |
|
|
2519 | CODE: |
|
|
2520 | { |
|
|
2521 | struct coro *current = SvSTATE_current; |
|
|
2522 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
2523 | SvREFCNT_dec (*throwp); |
|
|
2524 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | void |
1973 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2528 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2529 | PROTOTYPE: $;$ |
|
|
2530 | C_ARGS: aTHX_ coro, flags |
1974 | |
2531 | |
1975 | SV * |
2532 | SV * |
1976 | has_cctx (Coro::State coro) |
2533 | has_cctx (Coro::State coro) |
1977 | PROTOTYPE: $ |
2534 | PROTOTYPE: $ |
1978 | CODE: |
2535 | CODE: |
… | |
… | |
1986 | CODE: |
2543 | CODE: |
1987 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
2544 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1988 | OUTPUT: |
2545 | OUTPUT: |
1989 | RETVAL |
2546 | RETVAL |
1990 | |
2547 | |
1991 | IV |
2548 | UV |
1992 | rss (Coro::State coro) |
2549 | rss (Coro::State coro) |
1993 | PROTOTYPE: $ |
2550 | PROTOTYPE: $ |
1994 | ALIAS: |
2551 | ALIAS: |
1995 | usecount = 1 |
2552 | usecount = 1 |
1996 | CODE: |
2553 | CODE: |
… | |
… | |
2002 | OUTPUT: |
2559 | OUTPUT: |
2003 | RETVAL |
2560 | RETVAL |
2004 | |
2561 | |
2005 | void |
2562 | void |
2006 | force_cctx () |
2563 | force_cctx () |
|
|
2564 | PROTOTYPE: |
2007 | CODE: |
2565 | CODE: |
2008 | struct coro *coro = SvSTATE (coro_current); |
|
|
2009 | coro->cctx->idle_sp = 0; |
2566 | SvSTATE_current->cctx->idle_sp = 0; |
2010 | |
2567 | |
2011 | void |
2568 | void |
2012 | swap_defsv (Coro::State self) |
2569 | swap_defsv (Coro::State self) |
2013 | PROTOTYPE: $ |
2570 | PROTOTYPE: $ |
2014 | ALIAS: |
2571 | ALIAS: |
2015 | swap_defav = 1 |
2572 | swap_defav = 1 |
2016 | CODE: |
2573 | CODE: |
2017 | if (!self->slot) |
2574 | if (!self->slot) |
2018 | croak ("cannot swap state with coroutine that has no saved state"); |
2575 | croak ("cannot swap state with coroutine that has no saved state,"); |
2019 | else |
2576 | else |
2020 | { |
2577 | { |
2021 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2578 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2022 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2579 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2023 | |
2580 | |
2024 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2581 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2025 | } |
2582 | } |
|
|
2583 | |
2026 | |
2584 | |
2027 | MODULE = Coro::State PACKAGE = Coro |
2585 | MODULE = Coro::State PACKAGE = Coro |
2028 | |
2586 | |
2029 | BOOT: |
2587 | BOOT: |
2030 | { |
2588 | { |
… | |
… | |
2048 | |
2606 | |
2049 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2607 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2050 | coro_ready[i] = newAV (); |
2608 | coro_ready[i] = newAV (); |
2051 | |
2609 | |
2052 | { |
2610 | { |
2053 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
2611 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2054 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2055 | |
2612 | |
2056 | coroapi.schedule = api_schedule; |
2613 | coroapi.schedule = api_schedule; |
2057 | coroapi.cede = api_cede; |
2614 | coroapi.cede = api_cede; |
2058 | coroapi.cede_notself = api_cede_notself; |
2615 | coroapi.cede_notself = api_cede_notself; |
2059 | coroapi.ready = api_ready; |
2616 | coroapi.ready = api_ready; |
2060 | coroapi.is_ready = api_is_ready; |
2617 | coroapi.is_ready = api_is_ready; |
2061 | coroapi.nready = &coro_nready; |
2618 | coroapi.nready = coro_nready; |
2062 | coroapi.current = coro_current; |
2619 | coroapi.current = coro_current; |
2063 | |
2620 | |
2064 | GCoroAPI = &coroapi; |
2621 | /*GCoroAPI = &coroapi;*/ |
2065 | sv_setiv (sv, (IV)&coroapi); |
2622 | sv_setiv (sv, (IV)&coroapi); |
2066 | SvREADONLY_on (sv); |
2623 | SvREADONLY_on (sv); |
2067 | } |
2624 | } |
2068 | } |
2625 | } |
|
|
2626 | |
|
|
2627 | void |
|
|
2628 | schedule (...) |
|
|
2629 | CODE: |
|
|
2630 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2631 | |
|
|
2632 | void |
|
|
2633 | cede (...) |
|
|
2634 | CODE: |
|
|
2635 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2636 | |
|
|
2637 | void |
|
|
2638 | cede_notself (...) |
|
|
2639 | CODE: |
|
|
2640 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2069 | |
2641 | |
2070 | void |
2642 | void |
2071 | _set_current (SV *current) |
2643 | _set_current (SV *current) |
2072 | PROTOTYPE: $ |
2644 | PROTOTYPE: $ |
2073 | CODE: |
2645 | CODE: |
… | |
… | |
2076 | |
2648 | |
2077 | void |
2649 | void |
2078 | _set_readyhook (SV *hook) |
2650 | _set_readyhook (SV *hook) |
2079 | PROTOTYPE: $ |
2651 | PROTOTYPE: $ |
2080 | CODE: |
2652 | CODE: |
2081 | LOCK; |
|
|
2082 | SvREFCNT_dec (coro_readyhook); |
2653 | SvREFCNT_dec (coro_readyhook); |
2083 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2654 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2084 | UNLOCK; |
|
|
2085 | |
2655 | |
2086 | int |
2656 | int |
2087 | prio (Coro::State coro, int newprio = 0) |
2657 | prio (Coro::State coro, int newprio = 0) |
|
|
2658 | PROTOTYPE: $;$ |
2088 | ALIAS: |
2659 | ALIAS: |
2089 | nice = 1 |
2660 | nice = 1 |
2090 | CODE: |
2661 | CODE: |
2091 | { |
2662 | { |
2092 | RETVAL = coro->prio; |
2663 | RETVAL = coro->prio; |
… | |
… | |
2107 | |
2678 | |
2108 | SV * |
2679 | SV * |
2109 | ready (SV *self) |
2680 | ready (SV *self) |
2110 | PROTOTYPE: $ |
2681 | PROTOTYPE: $ |
2111 | CODE: |
2682 | CODE: |
2112 | RETVAL = boolSV (api_ready (self)); |
2683 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2113 | OUTPUT: |
2684 | OUTPUT: |
2114 | RETVAL |
2685 | RETVAL |
2115 | |
2686 | |
2116 | int |
2687 | int |
2117 | nready (...) |
2688 | nready (...) |
… | |
… | |
2119 | CODE: |
2690 | CODE: |
2120 | RETVAL = coro_nready; |
2691 | RETVAL = coro_nready; |
2121 | OUTPUT: |
2692 | OUTPUT: |
2122 | RETVAL |
2693 | RETVAL |
2123 | |
2694 | |
2124 | void |
|
|
2125 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2126 | PROTOTYPE: $;$ |
|
|
2127 | CODE: |
|
|
2128 | SvREFCNT_dec (self->throw); |
|
|
2129 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2130 | |
|
|
2131 | # for async_pool speedup |
2695 | # for async_pool speedup |
2132 | void |
2696 | void |
2133 | _pool_1 (SV *cb) |
2697 | _pool_1 (SV *cb) |
2134 | CODE: |
2698 | CODE: |
2135 | { |
2699 | { |
2136 | struct coro *coro = SvSTATE (coro_current); |
|
|
2137 | HV *hv = (HV *)SvRV (coro_current); |
2700 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2701 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2138 | AV *defav = GvAV (PL_defgv); |
2702 | AV *defav = GvAV (PL_defgv); |
2139 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2703 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2140 | AV *invoke_av; |
2704 | AV *invoke_av; |
2141 | int i, len; |
2705 | int i, len; |
2142 | |
2706 | |
… | |
… | |
2163 | { |
2727 | { |
2164 | av_fill (defav, len - 1); |
2728 | av_fill (defav, len - 1); |
2165 | for (i = 0; i < len; ++i) |
2729 | for (i = 0; i < len; ++i) |
2166 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2730 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2167 | } |
2731 | } |
2168 | |
|
|
2169 | SvREFCNT_dec (invoke); |
|
|
2170 | } |
2732 | } |
2171 | |
2733 | |
2172 | void |
2734 | void |
2173 | _pool_2 (SV *cb) |
2735 | _pool_2 (SV *cb) |
2174 | CODE: |
2736 | CODE: |
2175 | { |
2737 | { |
2176 | struct coro *coro = SvSTATE (coro_current); |
2738 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2739 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2177 | |
2740 | |
2178 | sv_setsv (cb, &PL_sv_undef); |
2741 | sv_setsv (cb, &PL_sv_undef); |
2179 | |
2742 | |
2180 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2743 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2181 | coro->saved_deffh = 0; |
2744 | coro->saved_deffh = 0; |
2182 | |
2745 | |
2183 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
2746 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2184 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2747 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2185 | { |
2748 | { |
2186 | SV *old = PL_diehook; |
2749 | SV *old = PL_diehook; |
2187 | PL_diehook = 0; |
2750 | PL_diehook = 0; |
2188 | SvREFCNT_dec (old); |
2751 | SvREFCNT_dec (old); |
2189 | croak ("\3async_pool terminate\2\n"); |
2752 | croak ("\3async_pool terminate\2\n"); |
2190 | } |
2753 | } |
2191 | |
2754 | |
2192 | av_clear (GvAV (PL_defgv)); |
2755 | av_clear (GvAV (PL_defgv)); |
2193 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2756 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2194 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2757 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2195 | |
2758 | |
2196 | coro->prio = 0; |
2759 | coro->prio = 0; |
2197 | |
2760 | |
2198 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2761 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2199 | api_trace (coro_current, 0); |
2762 | api_trace (aTHX_ coro_current, 0); |
2200 | |
2763 | |
2201 | av_push (av_async_pool, newSVsv (coro_current)); |
2764 | av_push (av_async_pool, newSVsv (coro_current)); |
2202 | } |
2765 | } |
2203 | |
2766 | |
2204 | #if 0 |
|
|
2205 | |
2767 | |
2206 | void |
2768 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2207 | _generator_call (...) |
2769 | |
2208 | PROTOTYPE: @ |
2770 | BOOT: |
2209 | PPCODE: |
2771 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2210 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
2772 | |
2211 | xxxx |
2773 | |
2212 | abort (); |
2774 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2213 | |
2775 | |
2214 | SV * |
2776 | SV * |
2215 | gensub (SV *sub, ...) |
2777 | new (SV *klass, SV *count_ = 0) |
2216 | PROTOTYPE: &;@ |
2778 | CODE: |
2217 | CODE: |
|
|
2218 | { |
2779 | { |
2219 | struct coro *coro; |
2780 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
2220 | MAGIC *mg; |
2781 | AV *av = newAV (); |
2221 | CV *xcv; |
2782 | SV **ary; |
2222 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2223 | int i; |
|
|
2224 | |
2783 | |
2225 | CvGV (ncv) = CvGV (cv); |
2784 | /* unfortunately, building manually saves memory */ |
2226 | CvFILE (ncv) = CvFILE (cv); |
2785 | Newx (ary, 2, SV *); |
|
|
2786 | AvALLOC (av) = ary; |
|
|
2787 | AvARRAY (av) = ary; |
|
|
2788 | AvMAX (av) = 1; |
|
|
2789 | AvFILLp (av) = 0; |
|
|
2790 | ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1); |
2227 | |
2791 | |
2228 | Newz (0, coro, 1, struct coro); |
2792 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
2229 | coro->args = newAV (); |
|
|
2230 | coro->flags = CF_NEW; |
|
|
2231 | |
|
|
2232 | av_extend (coro->args, items - 1); |
|
|
2233 | for (i = 1; i < items; i++) |
|
|
2234 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2235 | |
|
|
2236 | CvISXSUB_on (ncv); |
|
|
2237 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2238 | |
|
|
2239 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2240 | |
|
|
2241 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2242 | CvANON_on (ncv); |
|
|
2243 | |
|
|
2244 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2245 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2246 | } |
2793 | } |
2247 | OUTPUT: |
2794 | OUTPUT: |
2248 | RETVAL |
2795 | RETVAL |
2249 | |
2796 | |
2250 | #endif |
2797 | SV * |
2251 | |
2798 | count (SV *self) |
2252 | |
2799 | CODE: |
2253 | MODULE = Coro::State PACKAGE = Coro::AIO |
2800 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2801 | OUTPUT: |
|
|
2802 | RETVAL |
2254 | |
2803 | |
2255 | void |
2804 | void |
2256 | _get_state (SV *self) |
2805 | up (SV *self, int adjust = 1) |
2257 | PPCODE: |
2806 | ALIAS: |
2258 | { |
2807 | adjust = 1 |
2259 | AV *defav = GvAV (PL_defgv); |
2808 | CODE: |
2260 | AV *av = newAV (); |
2809 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2261 | int i; |
|
|
2262 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2263 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2264 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2265 | SvPOK_only (data_sv); |
|
|
2266 | |
|
|
2267 | data->errorno = errno; |
|
|
2268 | data->laststype = PL_laststype; |
|
|
2269 | data->laststatval = PL_laststatval; |
|
|
2270 | data->statcache = PL_statcache; |
|
|
2271 | |
|
|
2272 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2273 | |
|
|
2274 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2275 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2276 | |
|
|
2277 | av_push (av, data_sv); |
|
|
2278 | |
|
|
2279 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2280 | |
|
|
2281 | api_ready (self); |
|
|
2282 | } |
|
|
2283 | |
2810 | |
2284 | void |
2811 | void |
2285 | _set_state (SV *state) |
2812 | down (SV *self) |
2286 | PROTOTYPE: $ |
2813 | CODE: |
2287 | PPCODE: |
2814 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2815 | |
|
|
2816 | void |
|
|
2817 | try (SV *self) |
|
|
2818 | PPCODE: |
2288 | { |
2819 | { |
2289 | AV *av = (AV *)SvRV (state); |
2820 | AV *av = (AV *)SvRV (self); |
2290 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
2821 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2822 | IV count = SvIVX (count_sv); |
|
|
2823 | |
|
|
2824 | if (count > 0) |
|
|
2825 | { |
|
|
2826 | --count; |
|
|
2827 | SvIVX (count_sv) = count; |
|
|
2828 | XSRETURN_YES; |
|
|
2829 | } |
|
|
2830 | else |
|
|
2831 | XSRETURN_NO; |
|
|
2832 | } |
|
|
2833 | |
|
|
2834 | void |
|
|
2835 | waiters (SV *self) |
|
|
2836 | CODE: |
|
|
2837 | { |
|
|
2838 | AV *av = (AV *)SvRV (self); |
|
|
2839 | |
|
|
2840 | if (GIMME_V == G_SCALAR) |
|
|
2841 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2842 | else |
|
|
2843 | { |
2291 | int i; |
2844 | int i; |
2292 | |
|
|
2293 | errno = data->errorno; |
|
|
2294 | PL_laststype = data->laststype; |
|
|
2295 | PL_laststatval = data->laststatval; |
|
|
2296 | PL_statcache = data->statcache; |
|
|
2297 | |
|
|
2298 | EXTEND (SP, AvFILLp (av)); |
2845 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
2299 | for (i = 0; i < AvFILLp (av); ++i) |
2846 | for (i = 1; i <= AvFILLp (av); ++i) |
2300 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
2847 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
2848 | } |
2301 | } |
2849 | } |
2302 | |
2850 | |
2303 | |
2851 | |
2304 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2852 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2305 | |
2853 | |
2306 | BOOT: |
2854 | BOOT: |
2307 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2855 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2308 | |
2856 | |
2309 | SV * |
2857 | void |
2310 | _schedule (...) |
2858 | _schedule (...) |
2311 | PROTOTYPE: @ |
|
|
2312 | CODE: |
2859 | CODE: |
2313 | { |
2860 | { |
2314 | static int incede; |
2861 | static int incede; |
2315 | |
2862 | |
2316 | api_cede_notself (); |
2863 | api_cede_notself (aTHX); |
2317 | |
2864 | |
2318 | ++incede; |
2865 | ++incede; |
2319 | while (coro_nready >= incede && api_cede ()) |
2866 | while (coro_nready >= incede && api_cede (aTHX)) |
2320 | ; |
2867 | ; |
2321 | |
2868 | |
2322 | sv_setsv (sv_activity, &PL_sv_undef); |
2869 | sv_setsv (sv_activity, &PL_sv_undef); |
2323 | if (coro_nready >= incede) |
2870 | if (coro_nready >= incede) |
2324 | { |
2871 | { |
2325 | PUSHMARK (SP); |
2872 | PUSHMARK (SP); |
2326 | PUTBACK; |
2873 | PUTBACK; |
2327 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
2874 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2328 | SPAGAIN; |
|
|
2329 | } |
2875 | } |
2330 | |
2876 | |
2331 | --incede; |
2877 | --incede; |
2332 | } |
2878 | } |
2333 | |
2879 | |
2334 | |
2880 | |
2335 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2881 | MODULE = Coro::State PACKAGE = Coro::AIO |
2336 | |
2882 | |
2337 | BOOT: |
2883 | void |
2338 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2884 | _register (char *target, char *proto, SV *req) |
|
|
2885 | CODE: |
|
|
2886 | { |
|
|
2887 | HV *st; |
|
|
2888 | GV *gvp; |
|
|
2889 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
2890 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
2891 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
2892 | sv_setpv ((SV *)slf_cv, proto); |
|
|
2893 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
2894 | } |
|
|
2895 | |