… | |
… | |
16 | |
16 | |
17 | #ifdef WIN32 |
17 | #ifdef WIN32 |
18 | # undef setjmp |
18 | # undef setjmp |
19 | # undef longjmp |
19 | # undef longjmp |
20 | # undef _exit |
20 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
21 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
22 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
23 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
24 | #endif |
25 | |
25 | |
26 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
… | |
… | |
95 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
96 | #endif |
96 | #endif |
97 | #ifndef newSV |
97 | #ifndef newSV |
98 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
99 | #endif |
99 | #endif |
|
|
100 | #ifndef CvISXSUB_on |
|
|
101 | # define CvISXSUB_on(cv) (void)cv |
|
|
102 | #endif |
100 | |
103 | |
101 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
102 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
104 | #endif |
107 | #endif |
… | |
… | |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
117 | #endif |
120 | #endif |
118 | |
121 | |
119 | /* The next macros try to return the current stack pointer, in an as |
122 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
123 | * portable way as possible. */ |
|
|
124 | #if __GNUC__ >= 4 |
|
|
125 | # define dSTACKLEVEL int stacklevel_dummy |
|
|
126 | # define STACKLEVEL __builtin_frame_address (0) |
|
|
127 | #else |
121 | #define dSTACKLEVEL volatile char stacklevel |
128 | # define dSTACKLEVEL volatile void *stacklevel |
122 | #define STACKLEVEL ((void *)&stacklevel) |
129 | # define STACKLEVEL ((void *)&stacklevel) |
|
|
130 | #endif |
123 | |
131 | |
124 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
132 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
125 | |
133 | |
126 | #if __GNUC__ >= 3 |
134 | #if __GNUC__ >= 3 |
127 | # define attribute(x) __attribute__(x) |
135 | # define attribute(x) __attribute__(x) |
128 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
|
|
129 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
136 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
130 | # define INLINE static inline |
137 | # define INLINE static inline |
131 | #else |
138 | #else |
132 | # define attribute(x) |
139 | # define attribute(x) |
133 | # define BARRIER |
|
|
134 | # define expect(expr,value) (expr) |
140 | # define expect(expr,value) (expr) |
135 | # define INLINE static |
141 | # define INLINE static |
136 | #endif |
142 | #endif |
137 | |
143 | |
138 | #define expect_false(expr) expect ((expr) != 0, 0) |
144 | #define expect_false(expr) expect ((expr) != 0, 0) |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
145 | #define expect_true(expr) expect ((expr) != 0, 1) |
140 | |
146 | |
141 | #define NOINLINE attribute ((noinline)) |
147 | #define NOINLINE attribute ((noinline)) |
142 | |
148 | |
143 | #include "CoroAPI.h" |
149 | #include "CoroAPI.h" |
|
|
150 | #define GCoroAPI (&coroapi) /* very sneaky */ |
144 | |
151 | |
145 | #ifdef USE_ITHREADS |
152 | #ifdef USE_ITHREADS |
146 | |
|
|
147 | static perl_mutex coro_lock; |
|
|
148 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
|
|
149 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
|
150 | # if CORO_PTHREAD |
153 | # if CORO_PTHREAD |
151 | static void *coro_thx; |
154 | static void *coro_thx; |
152 | # endif |
155 | # endif |
153 | |
|
|
154 | #else |
|
|
155 | |
|
|
156 | # define LOCK (void)0 |
|
|
157 | # define UNLOCK (void)0 |
|
|
158 | |
|
|
159 | #endif |
156 | #endif |
160 | |
|
|
161 | # undef LOCK |
|
|
162 | # define LOCK (void)0 |
|
|
163 | # undef UNLOCK |
|
|
164 | # define UNLOCK (void)0 |
|
|
165 | |
|
|
166 | /* helper storage struct for Coro::AIO */ |
|
|
167 | struct io_state |
|
|
168 | { |
|
|
169 | AV *res; |
|
|
170 | int errorno; |
|
|
171 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
172 | int laststatval; |
|
|
173 | Stat_t statcache; |
|
|
174 | }; |
|
|
175 | |
157 | |
176 | static double (*nvtime)(); /* so why doesn't it take void? */ |
158 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
159 | |
|
|
160 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
161 | #define CVf_SLF 0x4000 |
|
|
162 | static OP *pp_slf (pTHX); |
177 | |
163 | |
178 | static U32 cctx_gen; |
164 | static U32 cctx_gen; |
179 | static size_t cctx_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
180 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
181 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
182 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
183 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
|
|
170 | static CV *coro_run_cv; |
184 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
171 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
185 | static volatile struct coro *transfer_next; |
|
|
186 | |
|
|
187 | struct transfer_args |
|
|
188 | { |
|
|
189 | struct coro *prev, *next; |
|
|
190 | }; |
|
|
191 | |
172 | |
192 | static GV *irsgv; /* $/ */ |
173 | static GV *irsgv; /* $/ */ |
193 | static GV *stdoutgv; /* *STDOUT */ |
174 | static GV *stdoutgv; /* *STDOUT */ |
194 | static SV *rv_diehook; |
175 | static SV *rv_diehook; |
195 | static SV *rv_warnhook; |
176 | static SV *rv_warnhook; |
… | |
… | |
214 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
195 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
215 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
196 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
216 | }; |
197 | }; |
217 | |
198 | |
218 | /* this is a structure representing a c-level coroutine */ |
199 | /* this is a structure representing a c-level coroutine */ |
219 | typedef struct coro_cctx { |
200 | typedef struct coro_cctx |
|
|
201 | { |
220 | struct coro_cctx *next; |
202 | struct coro_cctx *next; |
221 | |
203 | |
222 | /* the stack */ |
204 | /* the stack */ |
223 | void *sptr; |
205 | void *sptr; |
224 | size_t ssize; |
206 | size_t ssize; |
… | |
… | |
242 | CF_NEW = 0x0004, /* has never been switched to */ |
224 | CF_NEW = 0x0004, /* has never been switched to */ |
243 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
225 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
244 | }; |
226 | }; |
245 | |
227 | |
246 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
228 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
247 | typedef struct { |
229 | typedef struct |
|
|
230 | { |
248 | SV *defsv; |
231 | SV *defsv; |
249 | AV *defav; |
232 | AV *defav; |
250 | SV *errsv; |
233 | SV *errsv; |
251 | SV *irsgv; |
234 | SV *irsgv; |
252 | #define VAR(name,type) type name; |
235 | #define VAR(name,type) type name; |
… | |
… | |
256 | |
239 | |
257 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
240 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
258 | |
241 | |
259 | /* this is a structure representing a perl-level coroutine */ |
242 | /* this is a structure representing a perl-level coroutine */ |
260 | struct coro { |
243 | struct coro { |
261 | /* the c coroutine allocated to this perl coroutine, if any */ |
244 | /* the C coroutine allocated to this perl coroutine, if any */ |
262 | coro_cctx *cctx; |
245 | coro_cctx *cctx; |
263 | |
246 | |
264 | /* process data */ |
247 | /* state data */ |
|
|
248 | struct CoroSLF slf_frame; /* saved slf frame */ |
265 | AV *mainstack; |
249 | AV *mainstack; |
266 | perl_slots *slot; /* basically the saved sp */ |
250 | perl_slots *slot; /* basically the saved sp */ |
267 | |
251 | |
|
|
252 | CV *startcv; /* the CV to execute */ |
268 | AV *args; /* data associated with this coroutine (initial args) */ |
253 | AV *args; /* data associated with this coroutine (initial args) */ |
269 | int refcnt; /* coroutines are refcounted, yes */ |
254 | int refcnt; /* coroutines are refcounted, yes */ |
270 | int flags; /* CF_ flags */ |
255 | int flags; /* CF_ flags */ |
271 | HV *hv; /* the perl hash associated with this coro, if any */ |
256 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
257 | void (*on_destroy)(pTHX_ struct coro *coro); |
272 | |
258 | |
273 | /* statistics */ |
259 | /* statistics */ |
274 | int usecount; /* number of transfers to this coro */ |
260 | int usecount; /* number of transfers to this coro */ |
275 | |
261 | |
276 | /* coro process data */ |
262 | /* coro process data */ |
277 | int prio; |
263 | int prio; |
278 | SV *throw; /* exception to be thrown */ |
264 | SV *except; /* exception to be thrown */ |
|
|
265 | SV *rouse_cb; |
279 | |
266 | |
280 | /* async_pool */ |
267 | /* async_pool */ |
281 | SV *saved_deffh; |
268 | SV *saved_deffh; |
282 | |
269 | |
283 | /* linked list */ |
270 | /* linked list */ |
284 | struct coro *next, *prev; |
271 | struct coro *next, *prev; |
285 | }; |
272 | }; |
286 | |
273 | |
287 | typedef struct coro *Coro__State; |
274 | typedef struct coro *Coro__State; |
288 | typedef struct coro *Coro__State_or_hashref; |
275 | typedef struct coro *Coro__State_or_hashref; |
|
|
276 | |
|
|
277 | /* the following variables are effectively part of the perl context */ |
|
|
278 | /* and get copied between struct coro and these variables */ |
|
|
279 | /* the mainr easonw e don't support windows process emulation */ |
|
|
280 | static struct CoroSLF slf_frame; /* the current slf frame */ |
289 | |
281 | |
290 | /** Coro ********************************************************************/ |
282 | /** Coro ********************************************************************/ |
291 | |
283 | |
292 | #define PRIO_MAX 3 |
284 | #define PRIO_MAX 3 |
293 | #define PRIO_HIGH 1 |
285 | #define PRIO_HIGH 1 |
… | |
… | |
298 | |
290 | |
299 | /* for Coro.pm */ |
291 | /* for Coro.pm */ |
300 | static SV *coro_current; |
292 | static SV *coro_current; |
301 | static SV *coro_readyhook; |
293 | static SV *coro_readyhook; |
302 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
294 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
303 | static int coro_nready; |
|
|
304 | static struct coro *coro_first; |
295 | static struct coro *coro_first; |
|
|
296 | #define coro_nready coroapi.nready |
305 | |
297 | |
306 | /** lowlevel stuff **********************************************************/ |
298 | /** lowlevel stuff **********************************************************/ |
307 | |
299 | |
308 | static SV * |
300 | static SV * |
309 | coro_get_sv (pTHX_ const char *name, int create) |
301 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
331 | #if PERL_VERSION_ATLEAST (5,10,0) |
323 | #if PERL_VERSION_ATLEAST (5,10,0) |
332 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
324 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
333 | get_hv (name, create); |
325 | get_hv (name, create); |
334 | #endif |
326 | #endif |
335 | return get_hv (name, create); |
327 | return get_hv (name, create); |
|
|
328 | } |
|
|
329 | |
|
|
330 | /* may croak */ |
|
|
331 | INLINE CV * |
|
|
332 | coro_sv_2cv (SV *sv) |
|
|
333 | { |
|
|
334 | HV *st; |
|
|
335 | GV *gvp; |
|
|
336 | return sv_2cv (sv, &st, &gvp, 0); |
336 | } |
337 | } |
337 | |
338 | |
338 | static AV * |
339 | static AV * |
339 | coro_clone_padlist (pTHX_ CV *cv) |
340 | coro_clone_padlist (pTHX_ CV *cv) |
340 | { |
341 | { |
… | |
… | |
394 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
395 | |
396 | |
396 | return 0; |
397 | return 0; |
397 | } |
398 | } |
398 | |
399 | |
399 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
400 | #define CORO_MAGIC_type_cv 26 |
400 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
401 | |
402 | |
402 | static MGVTBL coro_cv_vtbl = { |
403 | static MGVTBL coro_cv_vtbl = { |
403 | 0, 0, 0, 0, |
404 | 0, 0, 0, 0, |
404 | coro_cv_free |
405 | coro_cv_free |
405 | }; |
406 | }; |
406 | |
407 | |
|
|
408 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
409 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
410 | ? SvMAGIC (sv) \ |
|
|
411 | : mg_find (sv, type)) |
|
|
412 | |
407 | #define CORO_MAGIC(sv, type) \ |
413 | #define CORO_MAGIC(sv, type) \ |
408 | SvMAGIC (sv) \ |
414 | (expect_true (SvMAGIC (sv)) \ |
409 | ? SvMAGIC (sv)->mg_type == type \ |
415 | ? CORO_MAGIC_NN (sv, type) \ |
410 | ? SvMAGIC (sv) \ |
|
|
411 | : mg_find (sv, type) \ |
|
|
412 | : 0 |
416 | : 0) |
413 | |
417 | |
414 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
418 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
415 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
419 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
416 | |
420 | |
417 | INLINE struct coro * |
421 | INLINE struct coro * |
418 | SvSTATE_ (pTHX_ SV *coro) |
422 | SvSTATE_ (pTHX_ SV *coro) |
419 | { |
423 | { |
420 | HV *stash; |
424 | HV *stash; |
… | |
… | |
437 | mg = CORO_MAGIC_state (coro); |
441 | mg = CORO_MAGIC_state (coro); |
438 | return (struct coro *)mg->mg_ptr; |
442 | return (struct coro *)mg->mg_ptr; |
439 | } |
443 | } |
440 | |
444 | |
441 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
445 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
446 | |
|
|
447 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
448 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
449 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
442 | |
450 | |
443 | /* the next two functions merely cache the padlists */ |
451 | /* the next two functions merely cache the padlists */ |
444 | static void |
452 | static void |
445 | get_padlist (pTHX_ CV *cv) |
453 | get_padlist (pTHX_ CV *cv) |
446 | { |
454 | { |
… | |
… | |
452 | else |
460 | else |
453 | { |
461 | { |
454 | #if CORO_PREFER_PERL_FUNCTIONS |
462 | #if CORO_PREFER_PERL_FUNCTIONS |
455 | /* this is probably cleaner? but also slower! */ |
463 | /* this is probably cleaner? but also slower! */ |
456 | /* in practise, it seems to be less stable */ |
464 | /* in practise, it seems to be less stable */ |
457 | CV *cp = Perl_cv_clone (cv); |
465 | CV *cp = Perl_cv_clone (aTHX_ cv); |
458 | CvPADLIST (cv) = CvPADLIST (cp); |
466 | CvPADLIST (cv) = CvPADLIST (cp); |
459 | CvPADLIST (cp) = 0; |
467 | CvPADLIST (cp) = 0; |
460 | SvREFCNT_dec (cp); |
468 | SvREFCNT_dec (cp); |
461 | #else |
469 | #else |
462 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
470 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
513 | CvPADLIST (cv) = (AV *)POPs; |
521 | CvPADLIST (cv) = (AV *)POPs; |
514 | } |
522 | } |
515 | |
523 | |
516 | PUTBACK; |
524 | PUTBACK; |
517 | } |
525 | } |
|
|
526 | |
|
|
527 | slf_frame = c->slf_frame; |
|
|
528 | CORO_THROW = c->except; |
518 | } |
529 | } |
519 | |
530 | |
520 | static void |
531 | static void |
521 | save_perl (pTHX_ Coro__State c) |
532 | save_perl (pTHX_ Coro__State c) |
522 | { |
533 | { |
|
|
534 | c->except = CORO_THROW; |
|
|
535 | c->slf_frame = slf_frame; |
|
|
536 | |
523 | { |
537 | { |
524 | dSP; |
538 | dSP; |
525 | I32 cxix = cxstack_ix; |
539 | I32 cxix = cxstack_ix; |
526 | PERL_CONTEXT *ccstk = cxstack; |
540 | PERL_CONTEXT *ccstk = cxstack; |
527 | PERL_SI *top_si = PL_curstackinfo; |
541 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
594 | #undef VAR |
608 | #undef VAR |
595 | } |
609 | } |
596 | } |
610 | } |
597 | |
611 | |
598 | /* |
612 | /* |
599 | * allocate various perl stacks. This is an exact copy |
613 | * allocate various perl stacks. This is almost an exact copy |
600 | * of perl.c:init_stacks, except that it uses less memory |
614 | * of perl.c:init_stacks, except that it uses less memory |
601 | * on the (sometimes correct) assumption that coroutines do |
615 | * on the (sometimes correct) assumption that coroutines do |
602 | * not usually need a lot of stackspace. |
616 | * not usually need a lot of stackspace. |
603 | */ |
617 | */ |
604 | #if CORO_PREFER_PERL_FUNCTIONS |
618 | #if CORO_PREFER_PERL_FUNCTIONS |
605 | # define coro_init_stacks init_stacks |
619 | # define coro_init_stacks(thx) init_stacks () |
606 | #else |
620 | #else |
607 | static void |
621 | static void |
608 | coro_init_stacks (pTHX) |
622 | coro_init_stacks (pTHX) |
609 | { |
623 | { |
610 | PL_curstackinfo = new_stackinfo(32, 8); |
624 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
725 | #ifndef MgPV_nolen_const |
739 | #ifndef MgPV_nolen_const |
726 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
740 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
727 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
741 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
728 | (const char*)(mg)->mg_ptr) |
742 | (const char*)(mg)->mg_ptr) |
729 | #endif |
743 | #endif |
730 | |
|
|
731 | /* we sometimes need to create the effect of entersub calling us */ |
|
|
732 | #define ENTERSUB_HEAD ENTER; SAVETMPS |
|
|
733 | /* we somtimes need to create the effect of leaving via entersub */ |
|
|
734 | #define ENTERSUB_TAIL LEAVE |
|
|
735 | |
744 | |
736 | /* |
745 | /* |
737 | * This overrides the default magic get method of %SIG elements. |
746 | * This overrides the default magic get method of %SIG elements. |
738 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
747 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
739 | * and instead of tryign to save and restore the hash elements, we just provide |
748 | * and instead of tryign to save and restore the hash elements, we just provide |
… | |
… | |
811 | |
820 | |
812 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
821 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
813 | } |
822 | } |
814 | |
823 | |
815 | static void |
824 | static void |
|
|
825 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
826 | { |
|
|
827 | /* kind of mega-hacky, but works */ |
|
|
828 | ta->next = ta->prev = (struct coro *)ta; |
|
|
829 | } |
|
|
830 | |
|
|
831 | static int |
|
|
832 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
833 | { |
|
|
834 | return 0; |
|
|
835 | } |
|
|
836 | |
|
|
837 | static UNOP coro_setup_op; |
|
|
838 | |
|
|
839 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
816 | coro_setup (pTHX_ struct coro *coro) |
840 | coro_setup (pTHX_ struct coro *coro) |
817 | { |
841 | { |
818 | /* |
842 | /* |
819 | * emulate part of the perl startup here. |
843 | * emulate part of the perl startup here. |
820 | */ |
844 | */ |
… | |
… | |
847 | { |
871 | { |
848 | dSP; |
872 | dSP; |
849 | UNOP myop; |
873 | UNOP myop; |
850 | |
874 | |
851 | Zero (&myop, 1, UNOP); |
875 | Zero (&myop, 1, UNOP); |
852 | myop.op_next = Nullop; |
876 | myop.op_next = Nullop; |
|
|
877 | myop.op_type = OP_ENTERSUB; |
853 | myop.op_flags = OPf_WANT_VOID; |
878 | myop.op_flags = OPf_WANT_VOID; |
854 | |
879 | |
855 | PUSHMARK (SP); |
880 | PUSHMARK (SP); |
856 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
881 | PUSHs ((SV *)coro->startcv); |
857 | PUTBACK; |
882 | PUTBACK; |
858 | PL_op = (OP *)&myop; |
883 | PL_op = (OP *)&myop; |
859 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
884 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
860 | SPAGAIN; |
|
|
861 | } |
885 | } |
862 | |
886 | |
863 | /* this newly created coroutine might be run on an existing cctx which most |
887 | /* this newly created coroutine might be run on an existing cctx which most |
864 | * likely was suspended in set_stacklevel, called from entersub. |
888 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
865 | * set_stacklevel doesn't do anything on return, but entersub does LEAVE, |
|
|
866 | * so we ENTER here for symmetry. |
|
|
867 | */ |
889 | */ |
868 | ENTERSUB_HEAD; |
890 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
891 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
892 | |
|
|
893 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
894 | coro_setup_op.op_next = PL_op; |
|
|
895 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
896 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
897 | /* no flags etc. required, as an init function won't be called */ |
|
|
898 | |
|
|
899 | PL_op = (OP *)&coro_setup_op; |
|
|
900 | |
|
|
901 | /* copy throw, in case it was set before coro_setup */ |
|
|
902 | CORO_THROW = coro->except; |
869 | } |
903 | } |
870 | |
904 | |
871 | static void |
905 | static void |
872 | coro_destruct (pTHX_ struct coro *coro) |
906 | coro_destruct (pTHX_ struct coro *coro) |
873 | { |
907 | { |
… | |
… | |
897 | |
931 | |
898 | SvREFCNT_dec (PL_diehook); |
932 | SvREFCNT_dec (PL_diehook); |
899 | SvREFCNT_dec (PL_warnhook); |
933 | SvREFCNT_dec (PL_warnhook); |
900 | |
934 | |
901 | SvREFCNT_dec (coro->saved_deffh); |
935 | SvREFCNT_dec (coro->saved_deffh); |
902 | SvREFCNT_dec (coro->throw); |
936 | SvREFCNT_dec (coro->rouse_cb); |
903 | |
937 | |
904 | coro_destruct_stacks (aTHX); |
938 | coro_destruct_stacks (aTHX); |
905 | } |
939 | } |
906 | |
940 | |
907 | INLINE void |
941 | INLINE void |
… | |
… | |
917 | static int |
951 | static int |
918 | runops_trace (pTHX) |
952 | runops_trace (pTHX) |
919 | { |
953 | { |
920 | COP *oldcop = 0; |
954 | COP *oldcop = 0; |
921 | int oldcxix = -2; |
955 | int oldcxix = -2; |
922 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
956 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
923 | coro_cctx *cctx = coro->cctx; |
957 | coro_cctx *cctx = coro->cctx; |
924 | |
958 | |
925 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
959 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
926 | { |
960 | { |
927 | PERL_ASYNC_CHECK (); |
961 | PERL_ASYNC_CHECK (); |
… | |
… | |
994 | SAVETMPS; |
1028 | SAVETMPS; |
995 | EXTEND (SP, 3); |
1029 | EXTEND (SP, 3); |
996 | PUSHMARK (SP); |
1030 | PUSHMARK (SP); |
997 | PUSHs (&PL_sv_yes); |
1031 | PUSHs (&PL_sv_yes); |
998 | PUSHs (fullname); |
1032 | PUSHs (fullname); |
999 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1033 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1000 | PUTBACK; |
1034 | PUTBACK; |
1001 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1035 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1002 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1036 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1003 | SPAGAIN; |
1037 | SPAGAIN; |
1004 | FREETMPS; |
1038 | FREETMPS; |
… | |
… | |
1036 | |
1070 | |
1037 | TAINT_NOT; |
1071 | TAINT_NOT; |
1038 | return 0; |
1072 | return 0; |
1039 | } |
1073 | } |
1040 | |
1074 | |
|
|
1075 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1076 | static struct CoroSLF cctx_ssl_frame; |
|
|
1077 | |
1041 | static void |
1078 | static void |
1042 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1079 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1043 | { |
1080 | { |
1044 | ta->prev = (struct coro *)cctx; |
1081 | ta->prev = (struct coro *)cctx_ssl_cctx; |
1045 | ta->next = 0; |
1082 | ta->next = 0; |
1046 | } |
1083 | } |
1047 | |
1084 | |
1048 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1085 | static int |
1049 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1086 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1050 | /* during execution of a perl program */ |
1087 | { |
1051 | /* also initialises PL_top_env */ |
1088 | *frame = cctx_ssl_frame; |
|
|
1089 | |
|
|
1090 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1052 | static void NOINLINE |
1094 | static void NOINLINE |
1053 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1095 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1054 | { |
1096 | { |
1055 | dSP; |
|
|
1056 | UNOP myop; |
|
|
1057 | |
|
|
1058 | PL_top_env = &PL_start_env; |
1097 | PL_top_env = &PL_start_env; |
1059 | |
1098 | |
1060 | if (cctx->flags & CC_TRACE) |
1099 | if (cctx->flags & CC_TRACE) |
1061 | PL_runops = runops_trace; |
1100 | PL_runops = runops_trace; |
1062 | |
1101 | |
1063 | Zero (&myop, 1, UNOP); |
1102 | /* we already must be executing an SLF op, there is no other valid way |
1064 | myop.op_next = PL_op; |
1103 | * that can lead to creation of a new cctx */ |
1065 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1104 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1105 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1066 | |
1106 | |
1067 | PUSHMARK (SP); |
1107 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1068 | EXTEND (SP, 2); |
1108 | cctx_ssl_cctx = cctx; |
1069 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1109 | cctx_ssl_frame = slf_frame; |
1070 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1110 | |
1071 | PUTBACK; |
1111 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1072 | PL_op = (OP *)&myop; |
1112 | slf_frame.check = slf_check_set_stacklevel; |
1073 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1074 | SPAGAIN; |
|
|
1075 | } |
1113 | } |
1076 | |
1114 | |
1077 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1115 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1078 | INLINE void |
1116 | INLINE void |
1079 | transfer_tail (pTHX) |
1117 | transfer_tail (pTHX) |
1080 | { |
1118 | { |
1081 | struct coro *next = (struct coro *)transfer_next; |
|
|
1082 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1083 | assert (("FATAL: transfer_next was zero in transfer_tail (please report)", next)); |
|
|
1084 | |
|
|
1085 | free_coro_mortal (aTHX); |
1119 | free_coro_mortal (aTHX); |
1086 | UNLOCK; |
|
|
1087 | |
|
|
1088 | if (expect_false (next->throw)) |
|
|
1089 | { |
|
|
1090 | SV *exception = sv_2mortal (next->throw); |
|
|
1091 | |
|
|
1092 | next->throw = 0; |
|
|
1093 | sv_setsv (ERRSV, exception); |
|
|
1094 | croak (0); |
|
|
1095 | } |
|
|
1096 | } |
1120 | } |
1097 | |
1121 | |
1098 | /* |
1122 | /* |
1099 | * this is a _very_ stripped down perl interpreter ;) |
1123 | * this is a _very_ stripped down perl interpreter ;) |
1100 | */ |
1124 | */ |
… | |
… | |
1107 | # endif |
1131 | # endif |
1108 | #endif |
1132 | #endif |
1109 | { |
1133 | { |
1110 | dTHX; |
1134 | dTHX; |
1111 | |
1135 | |
1112 | /* entersub called ENTER, but we never 'returned', undo that here */ |
1136 | /* normally we would need to skip the entersub here */ |
1113 | ENTERSUB_TAIL; |
1137 | /* not doing so will re-execute it, which is exactly what we want */ |
1114 | |
|
|
1115 | /* we now skip the entersub that did lead to transfer() */ |
|
|
1116 | PL_op = PL_op->op_next; |
1138 | /* PL_nop = PL_nop->op_next */ |
1117 | |
1139 | |
1118 | /* inject a fake subroutine call to cctx_init */ |
1140 | /* inject a fake subroutine call to cctx_init */ |
1119 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1141 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1120 | |
1142 | |
1121 | /* cctx_run is the alternative tail of transfer() */ |
1143 | /* cctx_run is the alternative tail of transfer() */ |
1122 | transfer_tail (aTHX); |
1144 | transfer_tail (aTHX); |
1123 | |
1145 | |
1124 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1146 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1125 | PL_restartop = PL_op; |
1147 | PL_restartop = PL_op; |
1126 | perl_run (PL_curinterp); |
1148 | perl_run (PL_curinterp); |
|
|
1149 | /* |
|
|
1150 | * Unfortunately, there is no way to get at the return values of the |
|
|
1151 | * coro body here, as perl_run destroys these |
|
|
1152 | */ |
1127 | |
1153 | |
1128 | /* |
1154 | /* |
1129 | * If perl-run returns we assume exit() was being called or the coro |
1155 | * If perl-run returns we assume exit() was being called or the coro |
1130 | * fell off the end, which seems to be the only valid (non-bug) |
1156 | * fell off the end, which seems to be the only valid (non-bug) |
1131 | * reason for perl_run to return. We try to exit by jumping to the |
1157 | * reason for perl_run to return. We try to exit by jumping to the |
… | |
… | |
1192 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1218 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1193 | New (0, cctx->sptr, cctx_stacksize, long); |
1219 | New (0, cctx->sptr, cctx_stacksize, long); |
1194 | |
1220 | |
1195 | if (!cctx->sptr) |
1221 | if (!cctx->sptr) |
1196 | { |
1222 | { |
1197 | perror ("FATAL: unable to allocate stack for coroutine"); |
1223 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1198 | _exit (EXIT_FAILURE); |
1224 | _exit (EXIT_FAILURE); |
1199 | } |
1225 | } |
1200 | |
1226 | |
1201 | stack_start = cctx->sptr; |
1227 | stack_start = cctx->sptr; |
1202 | stack_size = cctx->ssize; |
1228 | stack_size = cctx->ssize; |
… | |
… | |
1282 | /** coroutine switching *****************************************************/ |
1308 | /** coroutine switching *****************************************************/ |
1283 | |
1309 | |
1284 | static void |
1310 | static void |
1285 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1311 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1286 | { |
1312 | { |
|
|
1313 | /* TODO: throwing up here is considered harmful */ |
|
|
1314 | |
1287 | if (expect_true (prev != next)) |
1315 | if (expect_true (prev != next)) |
1288 | { |
1316 | { |
1289 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1317 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1290 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1318 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1291 | |
1319 | |
1292 | if (expect_false (next->flags & CF_RUNNING)) |
1320 | if (expect_false (next->flags & CF_RUNNING)) |
1293 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1321 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1294 | |
1322 | |
1295 | if (expect_false (next->flags & CF_DESTROYED)) |
1323 | if (expect_false (next->flags & CF_DESTROYED)) |
1296 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1324 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1297 | |
1325 | |
1298 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1326 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1299 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1327 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1300 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1328 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1301 | #endif |
1329 | #endif |
1302 | } |
1330 | } |
1303 | } |
1331 | } |
1304 | |
1332 | |
1305 | /* always use the TRANSFER macro */ |
1333 | /* always use the TRANSFER macro */ |
1306 | static void NOINLINE |
1334 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1307 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1335 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1308 | { |
1336 | { |
1309 | dSTACKLEVEL; |
1337 | dSTACKLEVEL; |
1310 | |
1338 | |
1311 | /* sometimes transfer is only called to set idle_sp */ |
1339 | /* sometimes transfer is only called to set idle_sp */ |
… | |
… | |
1326 | prev->flags |= CF_RUNNING; |
1354 | prev->flags |= CF_RUNNING; |
1327 | } |
1355 | } |
1328 | |
1356 | |
1329 | prev->flags &= ~CF_RUNNING; |
1357 | prev->flags &= ~CF_RUNNING; |
1330 | next->flags |= CF_RUNNING; |
1358 | next->flags |= CF_RUNNING; |
1331 | |
|
|
1332 | LOCK; |
|
|
1333 | |
1359 | |
1334 | /* first get rid of the old state */ |
1360 | /* first get rid of the old state */ |
1335 | save_perl (aTHX_ prev); |
1361 | save_perl (aTHX_ prev); |
1336 | |
1362 | |
1337 | if (expect_false (next->flags & CF_NEW)) |
1363 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1351 | prev__cctx->idle_sp == STACKLEVEL |
1377 | prev__cctx->idle_sp == STACKLEVEL |
1352 | && !(prev__cctx->flags & CC_TRACE) |
1378 | && !(prev__cctx->flags & CC_TRACE) |
1353 | && !force_cctx |
1379 | && !force_cctx |
1354 | )) |
1380 | )) |
1355 | { |
1381 | { |
1356 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1382 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1357 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1383 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1358 | |
1384 | |
1359 | prev->cctx = 0; |
1385 | prev->cctx = 0; |
1360 | |
1386 | |
1361 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1387 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
… | |
… | |
1369 | |
1395 | |
1370 | ++next->usecount; |
1396 | ++next->usecount; |
1371 | |
1397 | |
1372 | if (expect_true (!next->cctx)) |
1398 | if (expect_true (!next->cctx)) |
1373 | next->cctx = cctx_get (aTHX); |
1399 | next->cctx = cctx_get (aTHX); |
1374 | |
|
|
1375 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
|
|
1376 | transfer_next = next; |
|
|
1377 | |
1400 | |
1378 | if (expect_false (prev__cctx != next->cctx)) |
1401 | if (expect_false (prev__cctx != next->cctx)) |
1379 | { |
1402 | { |
1380 | prev__cctx->top_env = PL_top_env; |
1403 | prev__cctx->top_env = PL_top_env; |
1381 | PL_top_env = next->cctx->top_env; |
1404 | PL_top_env = next->cctx->top_env; |
… | |
… | |
1395 | coro_state_destroy (pTHX_ struct coro *coro) |
1418 | coro_state_destroy (pTHX_ struct coro *coro) |
1396 | { |
1419 | { |
1397 | if (coro->flags & CF_DESTROYED) |
1420 | if (coro->flags & CF_DESTROYED) |
1398 | return 0; |
1421 | return 0; |
1399 | |
1422 | |
|
|
1423 | if (coro->on_destroy) |
|
|
1424 | coro->on_destroy (aTHX_ coro); |
|
|
1425 | |
1400 | coro->flags |= CF_DESTROYED; |
1426 | coro->flags |= CF_DESTROYED; |
1401 | |
1427 | |
1402 | if (coro->flags & CF_READY) |
1428 | if (coro->flags & CF_READY) |
1403 | { |
1429 | { |
1404 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1430 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1405 | /* alternative: look through all ready queues and remove the coro */ |
1431 | /* alternative: look through all ready queues and remove the coro */ |
1406 | LOCK; |
|
|
1407 | --coro_nready; |
1432 | --coro_nready; |
1408 | UNLOCK; |
|
|
1409 | } |
1433 | } |
1410 | else |
1434 | else |
1411 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1435 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1412 | |
1436 | |
1413 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1437 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1414 | { |
1438 | { |
1415 | struct coro temp; |
1439 | struct coro temp; |
1416 | |
1440 | |
1417 | if (coro->flags & CF_RUNNING) |
1441 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1418 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1419 | |
1442 | |
1420 | save_perl (aTHX_ &temp); |
1443 | save_perl (aTHX_ &temp); |
1421 | load_perl (aTHX_ coro); |
1444 | load_perl (aTHX_ coro); |
1422 | |
1445 | |
1423 | coro_destruct (aTHX_ coro); |
1446 | coro_destruct (aTHX_ coro); |
… | |
… | |
1426 | |
1449 | |
1427 | coro->slot = 0; |
1450 | coro->slot = 0; |
1428 | } |
1451 | } |
1429 | |
1452 | |
1430 | cctx_destroy (coro->cctx); |
1453 | cctx_destroy (coro->cctx); |
|
|
1454 | SvREFCNT_dec (coro->startcv); |
1431 | SvREFCNT_dec (coro->args); |
1455 | SvREFCNT_dec (coro->args); |
|
|
1456 | SvREFCNT_dec (CORO_THROW); |
1432 | |
1457 | |
1433 | if (coro->next) coro->next->prev = coro->prev; |
1458 | if (coro->next) coro->next->prev = coro->prev; |
1434 | if (coro->prev) coro->prev->next = coro->next; |
1459 | if (coro->prev) coro->prev->next = coro->next; |
1435 | if (coro == coro_first) coro_first = coro->next; |
1460 | if (coro == coro_first) coro_first = coro->next; |
1436 | |
1461 | |
… | |
… | |
1474 | # define MGf_DUP 0 |
1499 | # define MGf_DUP 0 |
1475 | #endif |
1500 | #endif |
1476 | }; |
1501 | }; |
1477 | |
1502 | |
1478 | static void |
1503 | static void |
1479 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1504 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1480 | { |
1505 | { |
1481 | ta->prev = SvSTATE (prev_sv); |
1506 | ta->prev = SvSTATE (prev_sv); |
1482 | ta->next = SvSTATE (next_sv); |
1507 | ta->next = SvSTATE (next_sv); |
1483 | TRANSFER_CHECK (*ta); |
1508 | TRANSFER_CHECK (*ta); |
1484 | } |
1509 | } |
1485 | |
1510 | |
1486 | static void |
1511 | static void |
1487 | api_transfer (SV *prev_sv, SV *next_sv) |
1512 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1488 | { |
1513 | { |
1489 | dTHX; |
|
|
1490 | struct transfer_args ta; |
1514 | struct coro_transfer_args ta; |
1491 | |
1515 | |
1492 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1516 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1493 | TRANSFER (ta, 1); |
1517 | TRANSFER (ta, 1); |
1494 | } |
1518 | } |
1495 | |
1519 | |
|
|
1520 | /*****************************************************************************/ |
|
|
1521 | /* gensub: simple closure generation utility */ |
|
|
1522 | |
|
|
1523 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1524 | |
|
|
1525 | /* create a closure from XS, returns a code reference */ |
|
|
1526 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1527 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1528 | static SV * |
|
|
1529 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1530 | { |
|
|
1531 | CV *cv = (CV *)newSV (0); |
|
|
1532 | |
|
|
1533 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1534 | |
|
|
1535 | CvANON_on (cv); |
|
|
1536 | CvISXSUB_on (cv); |
|
|
1537 | CvXSUB (cv) = xsub; |
|
|
1538 | GENSUB_ARG = arg; |
|
|
1539 | |
|
|
1540 | return newRV_noinc ((SV *)cv); |
|
|
1541 | } |
|
|
1542 | |
1496 | /** Coro ********************************************************************/ |
1543 | /** Coro ********************************************************************/ |
1497 | |
1544 | |
1498 | static void |
1545 | INLINE void |
1499 | coro_enq (pTHX_ SV *coro_sv) |
1546 | coro_enq (pTHX_ struct coro *coro) |
1500 | { |
1547 | { |
1501 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1548 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1502 | } |
1549 | } |
1503 | |
1550 | |
1504 | static SV * |
1551 | INLINE SV * |
1505 | coro_deq (pTHX) |
1552 | coro_deq (pTHX) |
1506 | { |
1553 | { |
1507 | int prio; |
1554 | int prio; |
1508 | |
1555 | |
1509 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1556 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1512 | |
1559 | |
1513 | return 0; |
1560 | return 0; |
1514 | } |
1561 | } |
1515 | |
1562 | |
1516 | static int |
1563 | static int |
1517 | api_ready (SV *coro_sv) |
1564 | api_ready (pTHX_ SV *coro_sv) |
1518 | { |
1565 | { |
1519 | dTHX; |
|
|
1520 | struct coro *coro; |
1566 | struct coro *coro; |
1521 | SV *sv_hook; |
1567 | SV *sv_hook; |
1522 | void (*xs_hook)(void); |
1568 | void (*xs_hook)(void); |
1523 | |
1569 | |
1524 | if (SvROK (coro_sv)) |
1570 | if (SvROK (coro_sv)) |
… | |
… | |
1529 | if (coro->flags & CF_READY) |
1575 | if (coro->flags & CF_READY) |
1530 | return 0; |
1576 | return 0; |
1531 | |
1577 | |
1532 | coro->flags |= CF_READY; |
1578 | coro->flags |= CF_READY; |
1533 | |
1579 | |
1534 | LOCK; |
|
|
1535 | |
|
|
1536 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1580 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1537 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1581 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1538 | |
1582 | |
1539 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1583 | coro_enq (aTHX_ coro); |
1540 | ++coro_nready; |
1584 | ++coro_nready; |
1541 | |
1585 | |
1542 | UNLOCK; |
|
|
1543 | |
|
|
1544 | if (sv_hook) |
1586 | if (sv_hook) |
1545 | { |
1587 | { |
1546 | dSP; |
1588 | dSP; |
1547 | |
1589 | |
1548 | ENTER; |
1590 | ENTER; |
1549 | SAVETMPS; |
1591 | SAVETMPS; |
1550 | |
1592 | |
1551 | PUSHMARK (SP); |
1593 | PUSHMARK (SP); |
1552 | PUTBACK; |
1594 | PUTBACK; |
1553 | call_sv (sv_hook, G_DISCARD); |
1595 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1554 | SPAGAIN; |
|
|
1555 | |
1596 | |
1556 | FREETMPS; |
1597 | FREETMPS; |
1557 | LEAVE; |
1598 | LEAVE; |
1558 | } |
1599 | } |
1559 | |
1600 | |
… | |
… | |
1562 | |
1603 | |
1563 | return 1; |
1604 | return 1; |
1564 | } |
1605 | } |
1565 | |
1606 | |
1566 | static int |
1607 | static int |
1567 | api_is_ready (SV *coro_sv) |
1608 | api_is_ready (pTHX_ SV *coro_sv) |
1568 | { |
1609 | { |
1569 | dTHX; |
|
|
1570 | |
|
|
1571 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1610 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1572 | } |
1611 | } |
1573 | |
1612 | |
1574 | INLINE void |
1613 | INLINE void |
1575 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1614 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1576 | { |
1615 | { |
1577 | SV *prev_sv, *next_sv; |
1616 | SV *prev_sv, *next_sv; |
1578 | |
1617 | |
1579 | for (;;) |
1618 | for (;;) |
1580 | { |
1619 | { |
1581 | LOCK; |
|
|
1582 | next_sv = coro_deq (aTHX); |
1620 | next_sv = coro_deq (aTHX); |
1583 | |
1621 | |
1584 | /* nothing to schedule: call the idle handler */ |
1622 | /* nothing to schedule: call the idle handler */ |
1585 | if (expect_false (!next_sv)) |
1623 | if (expect_false (!next_sv)) |
1586 | { |
1624 | { |
1587 | dSP; |
1625 | dSP; |
1588 | UNLOCK; |
|
|
1589 | |
1626 | |
1590 | ENTER; |
1627 | ENTER; |
1591 | SAVETMPS; |
1628 | SAVETMPS; |
1592 | |
1629 | |
1593 | PUSHMARK (SP); |
1630 | PUSHMARK (SP); |
1594 | PUTBACK; |
1631 | PUTBACK; |
1595 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1632 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1596 | SPAGAIN; |
|
|
1597 | |
1633 | |
1598 | FREETMPS; |
1634 | FREETMPS; |
1599 | LEAVE; |
1635 | LEAVE; |
1600 | continue; |
1636 | continue; |
1601 | } |
1637 | } |
1602 | |
1638 | |
1603 | ta->next = SvSTATE (next_sv); |
1639 | ta->next = SvSTATE_hv (next_sv); |
1604 | |
1640 | |
1605 | /* cannot transfer to destroyed coros, skip and look for next */ |
1641 | /* cannot transfer to destroyed coros, skip and look for next */ |
1606 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1642 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1607 | { |
1643 | { |
1608 | UNLOCK; |
|
|
1609 | SvREFCNT_dec (next_sv); |
1644 | SvREFCNT_dec (next_sv); |
1610 | /* coro_nready has already been taken care of by destroy */ |
1645 | /* coro_nready has already been taken care of by destroy */ |
1611 | continue; |
1646 | continue; |
1612 | } |
1647 | } |
1613 | |
1648 | |
1614 | --coro_nready; |
1649 | --coro_nready; |
1615 | UNLOCK; |
|
|
1616 | break; |
1650 | break; |
1617 | } |
1651 | } |
1618 | |
1652 | |
1619 | /* free this only after the transfer */ |
1653 | /* free this only after the transfer */ |
1620 | prev_sv = SvRV (coro_current); |
1654 | prev_sv = SvRV (coro_current); |
1621 | ta->prev = SvSTATE (prev_sv); |
1655 | ta->prev = SvSTATE_hv (prev_sv); |
1622 | TRANSFER_CHECK (*ta); |
1656 | TRANSFER_CHECK (*ta); |
1623 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1657 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1624 | ta->next->flags &= ~CF_READY; |
1658 | ta->next->flags &= ~CF_READY; |
1625 | SvRV_set (coro_current, next_sv); |
1659 | SvRV_set (coro_current, next_sv); |
1626 | |
1660 | |
1627 | LOCK; |
|
|
1628 | free_coro_mortal (aTHX); |
1661 | free_coro_mortal (aTHX); |
1629 | coro_mortal = prev_sv; |
1662 | coro_mortal = prev_sv; |
1630 | UNLOCK; |
|
|
1631 | } |
1663 | } |
1632 | |
1664 | |
1633 | INLINE void |
1665 | INLINE void |
1634 | prepare_cede (pTHX_ struct transfer_args *ta) |
1666 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1635 | { |
1667 | { |
1636 | api_ready (coro_current); |
1668 | api_ready (aTHX_ coro_current); |
1637 | prepare_schedule (aTHX_ ta); |
1669 | prepare_schedule (aTHX_ ta); |
1638 | } |
1670 | } |
1639 | |
1671 | |
|
|
1672 | INLINE void |
|
|
1673 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1674 | { |
|
|
1675 | SV *prev = SvRV (coro_current); |
|
|
1676 | |
|
|
1677 | if (coro_nready) |
|
|
1678 | { |
|
|
1679 | prepare_schedule (aTHX_ ta); |
|
|
1680 | api_ready (aTHX_ prev); |
|
|
1681 | } |
|
|
1682 | else |
|
|
1683 | prepare_nop (aTHX_ ta); |
|
|
1684 | } |
|
|
1685 | |
|
|
1686 | static void |
|
|
1687 | api_schedule (pTHX) |
|
|
1688 | { |
|
|
1689 | struct coro_transfer_args ta; |
|
|
1690 | |
|
|
1691 | prepare_schedule (aTHX_ &ta); |
|
|
1692 | TRANSFER (ta, 1); |
|
|
1693 | } |
|
|
1694 | |
1640 | static int |
1695 | static int |
1641 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1696 | api_cede (pTHX) |
1642 | { |
1697 | { |
1643 | if (coro_nready) |
1698 | struct coro_transfer_args ta; |
1644 | { |
1699 | |
1645 | SV *prev = SvRV (coro_current); |
|
|
1646 | prepare_schedule (aTHX_ ta); |
1700 | prepare_cede (aTHX_ &ta); |
1647 | api_ready (prev); |
1701 | |
|
|
1702 | if (expect_true (ta.prev != ta.next)) |
|
|
1703 | { |
|
|
1704 | TRANSFER (ta, 1); |
1648 | return 1; |
1705 | return 1; |
1649 | } |
1706 | } |
1650 | else |
1707 | else |
1651 | return 0; |
1708 | return 0; |
1652 | } |
1709 | } |
1653 | |
1710 | |
1654 | static void |
|
|
1655 | api_schedule (void) |
|
|
1656 | { |
|
|
1657 | dTHX; |
|
|
1658 | struct transfer_args ta; |
|
|
1659 | |
|
|
1660 | prepare_schedule (aTHX_ &ta); |
|
|
1661 | TRANSFER (ta, 1); |
|
|
1662 | } |
|
|
1663 | |
|
|
1664 | static int |
1711 | static int |
1665 | api_cede (void) |
1712 | api_cede_notself (pTHX) |
1666 | { |
1713 | { |
1667 | dTHX; |
1714 | if (coro_nready) |
|
|
1715 | { |
1668 | struct transfer_args ta; |
1716 | struct coro_transfer_args ta; |
1669 | |
1717 | |
1670 | prepare_cede (aTHX_ &ta); |
1718 | prepare_cede_notself (aTHX_ &ta); |
1671 | |
|
|
1672 | if (expect_true (ta.prev != ta.next)) |
|
|
1673 | { |
|
|
1674 | TRANSFER (ta, 1); |
1719 | TRANSFER (ta, 1); |
1675 | return 1; |
1720 | return 1; |
1676 | } |
1721 | } |
1677 | else |
1722 | else |
1678 | return 0; |
1723 | return 0; |
1679 | } |
1724 | } |
1680 | |
1725 | |
1681 | static int |
1726 | static void |
1682 | api_cede_notself (void) |
|
|
1683 | { |
|
|
1684 | dTHX; |
|
|
1685 | struct transfer_args ta; |
|
|
1686 | |
|
|
1687 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1688 | { |
|
|
1689 | TRANSFER (ta, 1); |
|
|
1690 | return 1; |
|
|
1691 | } |
|
|
1692 | else |
|
|
1693 | return 0; |
|
|
1694 | } |
|
|
1695 | |
|
|
1696 | static void |
|
|
1697 | api_trace (SV *coro_sv, int flags) |
1727 | api_trace (pTHX_ SV *coro_sv, int flags) |
1698 | { |
1728 | { |
1699 | dTHX; |
|
|
1700 | struct coro *coro = SvSTATE (coro_sv); |
1729 | struct coro *coro = SvSTATE (coro_sv); |
1701 | |
1730 | |
1702 | if (flags & CC_TRACE) |
1731 | if (flags & CC_TRACE) |
1703 | { |
1732 | { |
1704 | if (!coro->cctx) |
1733 | if (!coro->cctx) |
1705 | coro->cctx = cctx_new_run (); |
1734 | coro->cctx = cctx_new_run (); |
1706 | else if (!(coro->cctx->flags & CC_TRACE)) |
1735 | else if (!(coro->cctx->flags & CC_TRACE)) |
1707 | croak ("cannot enable tracing on coroutine with custom stack"); |
1736 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1708 | |
1737 | |
1709 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1738 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1710 | } |
1739 | } |
1711 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1740 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1712 | { |
1741 | { |
… | |
… | |
1717 | else |
1746 | else |
1718 | coro->slot->runops = RUNOPS_DEFAULT; |
1747 | coro->slot->runops = RUNOPS_DEFAULT; |
1719 | } |
1748 | } |
1720 | } |
1749 | } |
1721 | |
1750 | |
1722 | #if 0 |
1751 | /*****************************************************************************/ |
|
|
1752 | /* rouse callback */ |
|
|
1753 | |
|
|
1754 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1755 | |
|
|
1756 | static void |
|
|
1757 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1758 | { |
|
|
1759 | dXSARGS; |
|
|
1760 | SV *data = (SV *)GENSUB_ARG; |
|
|
1761 | |
|
|
1762 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1763 | { |
|
|
1764 | /* first call, set args */ |
|
|
1765 | int i; |
|
|
1766 | AV *av = newAV (); |
|
|
1767 | SV *coro = SvRV (data); |
|
|
1768 | |
|
|
1769 | SvRV_set (data, (SV *)av); |
|
|
1770 | api_ready (aTHX_ coro); |
|
|
1771 | SvREFCNT_dec (coro); |
|
|
1772 | |
|
|
1773 | /* better take a full copy of the arguments */ |
|
|
1774 | while (items--) |
|
|
1775 | av_store (av, items, newSVsv (ST (items))); |
|
|
1776 | } |
|
|
1777 | |
|
|
1778 | XSRETURN_EMPTY; |
|
|
1779 | } |
|
|
1780 | |
1723 | static int |
1781 | static int |
1724 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1782 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
1725 | { |
1783 | { |
1726 | AV *padlist; |
1784 | SV *data = (SV *)frame->data; |
1727 | AV *av = (AV *)mg->mg_obj; |
1785 | |
|
|
1786 | if (CORO_THROW) |
|
|
1787 | return 0; |
1728 | |
1788 | |
1729 | abort (); |
1789 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1790 | return 1; |
|
|
1791 | |
|
|
1792 | /* now push all results on the stack */ |
|
|
1793 | { |
|
|
1794 | dSP; |
|
|
1795 | AV *av = (AV *)SvRV (data); |
|
|
1796 | int i; |
|
|
1797 | |
|
|
1798 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1799 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1800 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1801 | |
|
|
1802 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1803 | AvFILLp (av) = -1; |
|
|
1804 | av_undef (av); |
|
|
1805 | |
|
|
1806 | PUTBACK; |
|
|
1807 | } |
1730 | |
1808 | |
1731 | return 0; |
1809 | return 0; |
1732 | } |
1810 | } |
1733 | |
1811 | |
1734 | static MGVTBL coro_gensub_vtbl = { |
1812 | static void |
1735 | 0, 0, 0, 0, |
1813 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1736 | coro_gensub_free |
1814 | { |
1737 | }; |
1815 | SV *cb; |
1738 | #endif |
1816 | |
|
|
1817 | if (items) |
|
|
1818 | cb = arg [0]; |
|
|
1819 | else |
|
|
1820 | { |
|
|
1821 | struct coro *coro = SvSTATE_current; |
|
|
1822 | |
|
|
1823 | if (!coro->rouse_cb) |
|
|
1824 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1825 | |
|
|
1826 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1827 | coro->rouse_cb = 0; |
|
|
1828 | } |
|
|
1829 | |
|
|
1830 | if (!SvROK (cb) |
|
|
1831 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1832 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1833 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1834 | |
|
|
1835 | { |
|
|
1836 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1837 | SV *data = (SV *)GENSUB_ARG; |
|
|
1838 | |
|
|
1839 | frame->data = (void *)data; |
|
|
1840 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
1841 | frame->check = slf_check_rouse_wait; |
|
|
1842 | } |
|
|
1843 | } |
|
|
1844 | |
|
|
1845 | static SV * |
|
|
1846 | coro_new_rouse_cb (pTHX) |
|
|
1847 | { |
|
|
1848 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1849 | struct coro *coro = SvSTATE_hv (hv); |
|
|
1850 | SV *data = newRV_inc ((SV *)hv); |
|
|
1851 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
1852 | |
|
|
1853 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
1854 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
1855 | |
|
|
1856 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1857 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
1858 | |
|
|
1859 | return cb; |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | /*****************************************************************************/ |
|
|
1863 | /* schedule-like-function opcode (SLF) */ |
|
|
1864 | |
|
|
1865 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1866 | static const CV *slf_cv; |
|
|
1867 | static SV **slf_argv; |
|
|
1868 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1869 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1870 | |
|
|
1871 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1872 | /* recreate the stack frame as perl will on following calls */ |
|
|
1873 | /* since entersub cleared the stack */ |
|
|
1874 | static OP * |
|
|
1875 | pp_restore (pTHX) |
|
|
1876 | { |
|
|
1877 | int i; |
|
|
1878 | SV **SP = PL_stack_base + slf_ax; |
|
|
1879 | |
|
|
1880 | PUSHMARK (SP); |
|
|
1881 | |
|
|
1882 | EXTEND (SP, slf_argc + 1); |
|
|
1883 | |
|
|
1884 | for (i = 0; i < slf_argc; ++i) |
|
|
1885 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1886 | |
|
|
1887 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1888 | |
|
|
1889 | RETURNOP (slf_restore.op_first); |
|
|
1890 | } |
|
|
1891 | |
|
|
1892 | static void |
|
|
1893 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1894 | { |
|
|
1895 | SV **arg = (SV **)slf_frame.data; |
|
|
1896 | |
|
|
1897 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1898 | } |
|
|
1899 | |
|
|
1900 | static void |
|
|
1901 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1902 | { |
|
|
1903 | if (items != 2) |
|
|
1904 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1905 | |
|
|
1906 | frame->prepare = slf_prepare_transfer; |
|
|
1907 | frame->check = slf_check_nop; |
|
|
1908 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | static void |
|
|
1912 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1913 | { |
|
|
1914 | frame->prepare = prepare_schedule; |
|
|
1915 | frame->check = slf_check_nop; |
|
|
1916 | } |
|
|
1917 | |
|
|
1918 | static void |
|
|
1919 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1920 | { |
|
|
1921 | frame->prepare = prepare_cede; |
|
|
1922 | frame->check = slf_check_nop; |
|
|
1923 | } |
|
|
1924 | |
|
|
1925 | static void |
|
|
1926 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1927 | { |
|
|
1928 | frame->prepare = prepare_cede_notself; |
|
|
1929 | frame->check = slf_check_nop; |
|
|
1930 | } |
|
|
1931 | |
|
|
1932 | /* |
|
|
1933 | * these not obviously related functions are all rolled into one |
|
|
1934 | * function to increase chances that they all will call transfer with the same |
|
|
1935 | * stack offset |
|
|
1936 | * SLF stands for "schedule-like-function". |
|
|
1937 | */ |
|
|
1938 | static OP * |
|
|
1939 | pp_slf (pTHX) |
|
|
1940 | { |
|
|
1941 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1942 | |
|
|
1943 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1944 | /* the latter happens when a new coro has been started */ |
|
|
1945 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1946 | if (expect_true (!slf_frame.prepare)) |
|
|
1947 | { |
|
|
1948 | /* first iteration */ |
|
|
1949 | dSP; |
|
|
1950 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1951 | int items = SP - arg; /* args without function object */ |
|
|
1952 | SV *gv = *sp; |
|
|
1953 | |
|
|
1954 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1955 | /* for us, divert to the real entersub */ |
|
|
1956 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1957 | || !GvCV (gv) |
|
|
1958 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1959 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1960 | |
|
|
1961 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1962 | { |
|
|
1963 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1964 | AV *av = GvAV (PL_defgv); |
|
|
1965 | arg = AvARRAY (av); |
|
|
1966 | items = AvFILLp (av) + 1; |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1970 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1971 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1972 | |
|
|
1973 | /* pop args */ |
|
|
1974 | SP = PL_stack_base + POPMARK; |
|
|
1975 | |
|
|
1976 | PUTBACK; |
|
|
1977 | } |
|
|
1978 | |
|
|
1979 | /* now that we have a slf_frame, interpret it! */ |
|
|
1980 | /* we use a callback system not to make the code needlessly */ |
|
|
1981 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1982 | |
|
|
1983 | do |
|
|
1984 | { |
|
|
1985 | struct coro_transfer_args ta; |
|
|
1986 | |
|
|
1987 | slf_frame.prepare (aTHX_ &ta); |
|
|
1988 | TRANSFER (ta, 0); |
|
|
1989 | |
|
|
1990 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1991 | } |
|
|
1992 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1993 | |
|
|
1994 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1995 | |
|
|
1996 | /* exception handling */ |
|
|
1997 | if (expect_false (CORO_THROW)) |
|
|
1998 | { |
|
|
1999 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2000 | |
|
|
2001 | CORO_THROW = 0; |
|
|
2002 | sv_setsv (ERRSV, exception); |
|
|
2003 | croak (0); |
|
|
2004 | } |
|
|
2005 | |
|
|
2006 | /* return value handling - mostly like entersub */ |
|
|
2007 | /* make sure we put something on the stack in scalar context */ |
|
|
2008 | if (GIMME_V == G_SCALAR) |
|
|
2009 | { |
|
|
2010 | dSP; |
|
|
2011 | SV **bot = PL_stack_base + checkmark; |
|
|
2012 | |
|
|
2013 | if (sp == bot) /* too few, push undef */ |
|
|
2014 | bot [1] = &PL_sv_undef; |
|
|
2015 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2016 | bot [1] = *sp; |
|
|
2017 | |
|
|
2018 | SP = bot + 1; |
|
|
2019 | |
|
|
2020 | PUTBACK; |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | return NORMAL; |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | static void |
|
|
2027 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2028 | { |
|
|
2029 | int i; |
|
|
2030 | SV **arg = PL_stack_base + ax; |
|
|
2031 | int items = PL_stack_sp - arg + 1; |
|
|
2032 | |
|
|
2033 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2034 | |
|
|
2035 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2036 | && PL_op->op_ppaddr != pp_slf) |
|
|
2037 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2038 | |
|
|
2039 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2040 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2041 | slf_cv = cv; |
|
|
2042 | |
|
|
2043 | /* we patch the op, and then re-run the whole call */ |
|
|
2044 | /* we have to put the same argument on the stack for this to work */ |
|
|
2045 | /* and this will be done by pp_restore */ |
|
|
2046 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2047 | slf_restore.op_type = OP_CUSTOM; |
|
|
2048 | slf_restore.op_ppaddr = pp_restore; |
|
|
2049 | slf_restore.op_first = PL_op; |
|
|
2050 | |
|
|
2051 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2052 | |
|
|
2053 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2054 | { |
|
|
2055 | if (items > slf_arga) |
|
|
2056 | { |
|
|
2057 | slf_arga = items; |
|
|
2058 | free (slf_argv); |
|
|
2059 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2060 | } |
|
|
2061 | |
|
|
2062 | slf_argc = items; |
|
|
2063 | |
|
|
2064 | for (i = 0; i < items; ++i) |
|
|
2065 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2066 | } |
|
|
2067 | else |
|
|
2068 | slf_argc = 0; |
|
|
2069 | |
|
|
2070 | PL_op->op_ppaddr = pp_slf; |
|
|
2071 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2072 | |
|
|
2073 | PL_op = (OP *)&slf_restore; |
|
|
2074 | } |
1739 | |
2075 | |
1740 | /*****************************************************************************/ |
2076 | /*****************************************************************************/ |
1741 | /* PerlIO::cede */ |
2077 | /* PerlIO::cede */ |
1742 | |
2078 | |
1743 | typedef struct |
2079 | typedef struct |
… | |
… | |
1771 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2107 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1772 | double now = nvtime (); |
2108 | double now = nvtime (); |
1773 | |
2109 | |
1774 | if (now >= self->next) |
2110 | if (now >= self->next) |
1775 | { |
2111 | { |
1776 | api_cede (); |
2112 | api_cede (aTHX); |
1777 | self->next = now + self->every; |
2113 | self->next = now + self->every; |
1778 | } |
2114 | } |
1779 | |
2115 | |
1780 | return PerlIOBuf_flush (aTHX_ f); |
2116 | return PerlIOBuf_flush (aTHX_ f); |
1781 | } |
2117 | } |
… | |
… | |
1810 | PerlIOBuf_get_ptr, |
2146 | PerlIOBuf_get_ptr, |
1811 | PerlIOBuf_get_cnt, |
2147 | PerlIOBuf_get_cnt, |
1812 | PerlIOBuf_set_ptrcnt, |
2148 | PerlIOBuf_set_ptrcnt, |
1813 | }; |
2149 | }; |
1814 | |
2150 | |
|
|
2151 | /*****************************************************************************/ |
|
|
2152 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2153 | |
|
|
2154 | static SV * |
|
|
2155 | coro_waitarray_new (pTHX_ int count) |
|
|
2156 | { |
|
|
2157 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2158 | AV *av = newAV (); |
|
|
2159 | SV **ary; |
|
|
2160 | |
|
|
2161 | /* unfortunately, building manually saves memory */ |
|
|
2162 | Newx (ary, 2, SV *); |
|
|
2163 | AvALLOC (av) = ary; |
|
|
2164 | /*AvARRAY (av) = ary;*/ |
|
|
2165 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2166 | AvMAX (av) = 1; |
|
|
2167 | AvFILLp (av) = 0; |
|
|
2168 | ary [0] = newSViv (count); |
|
|
2169 | |
|
|
2170 | return newRV_noinc ((SV *)av); |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | /* semaphore */ |
|
|
2174 | |
|
|
2175 | static void |
|
|
2176 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2177 | { |
|
|
2178 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2179 | IV count = SvIVX (count_sv); |
|
|
2180 | |
|
|
2181 | count += adjust; |
|
|
2182 | SvIVX (count_sv) = count; |
|
|
2183 | |
|
|
2184 | /* now wake up as many waiters as are expected to lock */ |
|
|
2185 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2186 | { |
|
|
2187 | SV *cb; |
|
|
2188 | |
|
|
2189 | /* swap first two elements so we can shift a waiter */ |
|
|
2190 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2191 | AvARRAY (av)[1] = count_sv; |
|
|
2192 | cb = av_shift (av); |
|
|
2193 | |
|
|
2194 | if (SvOBJECT (cb)) |
|
|
2195 | { |
|
|
2196 | api_ready (aTHX_ cb); |
|
|
2197 | --count; |
|
|
2198 | } |
|
|
2199 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2200 | { |
|
|
2201 | dSP; |
|
|
2202 | PUSHMARK (SP); |
|
|
2203 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2204 | PUTBACK; |
|
|
2205 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2206 | } |
|
|
2207 | |
|
|
2208 | SvREFCNT_dec (cb); |
|
|
2209 | } |
|
|
2210 | } |
|
|
2211 | |
|
|
2212 | static void |
|
|
2213 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2214 | { |
|
|
2215 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2216 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2217 | } |
|
|
2218 | |
|
|
2219 | static int |
|
|
2220 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2221 | { |
|
|
2222 | AV *av = (AV *)frame->data; |
|
|
2223 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2224 | |
|
|
2225 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2226 | if (CORO_THROW) |
|
|
2227 | return 0; |
|
|
2228 | else if (SvIVX (count_sv) > 0) |
|
|
2229 | { |
|
|
2230 | SvSTATE_current->on_destroy = 0; |
|
|
2231 | |
|
|
2232 | if (acquire) |
|
|
2233 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2234 | else |
|
|
2235 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2236 | |
|
|
2237 | return 0; |
|
|
2238 | } |
|
|
2239 | else |
|
|
2240 | { |
|
|
2241 | int i; |
|
|
2242 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2243 | /* waiters list and only add us if we aren't in there already */ |
|
|
2244 | /* this avoids some degenerate memory usage cases */ |
|
|
2245 | |
|
|
2246 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2247 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2248 | return 1; |
|
|
2249 | |
|
|
2250 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2251 | return 1; |
|
|
2252 | } |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | static int |
|
|
2256 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2257 | { |
|
|
2258 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | static int |
|
|
2262 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2263 | { |
|
|
2264 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | static void |
|
|
2268 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2269 | { |
|
|
2270 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2271 | |
|
|
2272 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2273 | { |
|
|
2274 | frame->data = (void *)av; |
|
|
2275 | frame->prepare = prepare_nop; |
|
|
2276 | } |
|
|
2277 | else |
|
|
2278 | { |
|
|
2279 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2280 | |
|
|
2281 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2282 | frame->prepare = prepare_schedule; |
|
|
2283 | |
|
|
2284 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2285 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2286 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2287 | } |
|
|
2288 | } |
|
|
2289 | |
|
|
2290 | static void |
|
|
2291 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2292 | { |
|
|
2293 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2294 | frame->check = slf_check_semaphore_down; |
|
|
2295 | } |
|
|
2296 | |
|
|
2297 | static void |
|
|
2298 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2299 | { |
|
|
2300 | if (items >= 2) |
|
|
2301 | { |
|
|
2302 | /* callback form */ |
|
|
2303 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2304 | CV *cb_cv = coro_sv_2cv (arg [1]); |
|
|
2305 | |
|
|
2306 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2307 | |
|
|
2308 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2309 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2310 | |
|
|
2311 | frame->prepare = prepare_nop; |
|
|
2312 | frame->check = slf_check_nop; |
|
|
2313 | } |
|
|
2314 | else |
|
|
2315 | { |
|
|
2316 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2317 | frame->check = slf_check_semaphore_wait; |
|
|
2318 | } |
|
|
2319 | } |
|
|
2320 | |
|
|
2321 | /* signal */ |
|
|
2322 | |
|
|
2323 | static void |
|
|
2324 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2325 | { |
|
|
2326 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2327 | |
|
|
2328 | /* now signal count waiters */ |
|
|
2329 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2330 | { |
|
|
2331 | SV *cb; |
|
|
2332 | |
|
|
2333 | /* swap first two elements so we can shift a waiter */ |
|
|
2334 | cb = AvARRAY (av)[0]; |
|
|
2335 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2336 | AvARRAY (av)[1] = cb; |
|
|
2337 | |
|
|
2338 | cb = av_shift (av); |
|
|
2339 | |
|
|
2340 | api_ready (aTHX_ cb); |
|
|
2341 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2342 | SvREFCNT_dec (cb); |
|
|
2343 | |
|
|
2344 | --count; |
|
|
2345 | } |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | static int |
|
|
2349 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2350 | { |
|
|
2351 | /* if we are about to throw, also stop waiting */ |
|
|
2352 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2353 | } |
|
|
2354 | |
|
|
2355 | static void |
|
|
2356 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2357 | { |
|
|
2358 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2359 | |
|
|
2360 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2361 | { |
|
|
2362 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2363 | frame->prepare = prepare_nop; |
|
|
2364 | frame->check = slf_check_nop; |
|
|
2365 | } |
|
|
2366 | else |
|
|
2367 | { |
|
|
2368 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2369 | |
|
|
2370 | av_push (av, waiter); |
|
|
2371 | |
|
|
2372 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2373 | frame->prepare = prepare_schedule; |
|
|
2374 | frame->check = slf_check_signal_wait; |
|
|
2375 | } |
|
|
2376 | } |
|
|
2377 | |
|
|
2378 | /*****************************************************************************/ |
|
|
2379 | /* Coro::AIO */ |
|
|
2380 | |
|
|
2381 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2382 | |
|
|
2383 | /* helper storage struct */ |
|
|
2384 | struct io_state |
|
|
2385 | { |
|
|
2386 | int errorno; |
|
|
2387 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2388 | int laststatval; |
|
|
2389 | Stat_t statcache; |
|
|
2390 | }; |
|
|
2391 | |
|
|
2392 | static void |
|
|
2393 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2394 | { |
|
|
2395 | dXSARGS; |
|
|
2396 | AV *state = (AV *)GENSUB_ARG; |
|
|
2397 | SV *coro = av_pop (state); |
|
|
2398 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2399 | |
|
|
2400 | av_extend (state, items); |
|
|
2401 | |
|
|
2402 | sv_upgrade (data_sv, SVt_PV); |
|
|
2403 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2404 | SvPOK_only (data_sv); |
|
|
2405 | |
|
|
2406 | { |
|
|
2407 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2408 | |
|
|
2409 | data->errorno = errno; |
|
|
2410 | data->laststype = PL_laststype; |
|
|
2411 | data->laststatval = PL_laststatval; |
|
|
2412 | data->statcache = PL_statcache; |
|
|
2413 | } |
|
|
2414 | |
|
|
2415 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2416 | { |
|
|
2417 | int i; |
|
|
2418 | |
|
|
2419 | for (i = 0; i < items; ++i) |
|
|
2420 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2421 | } |
|
|
2422 | |
|
|
2423 | av_push (state, data_sv); |
|
|
2424 | |
|
|
2425 | api_ready (aTHX_ coro); |
|
|
2426 | SvREFCNT_dec (coro); |
|
|
2427 | SvREFCNT_dec ((AV *)state); |
|
|
2428 | } |
|
|
2429 | |
|
|
2430 | static int |
|
|
2431 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2432 | { |
|
|
2433 | AV *state = (AV *)frame->data; |
|
|
2434 | |
|
|
2435 | /* if we are about to throw, return early */ |
|
|
2436 | /* this does not cancel the aio request, but at least */ |
|
|
2437 | /* it quickly returns */ |
|
|
2438 | if (CORO_THROW) |
|
|
2439 | return 0; |
|
|
2440 | |
|
|
2441 | /* one element that is an RV? repeat! */ |
|
|
2442 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2443 | return 1; |
|
|
2444 | |
|
|
2445 | /* restore status */ |
|
|
2446 | { |
|
|
2447 | SV *data_sv = av_pop (state); |
|
|
2448 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2449 | |
|
|
2450 | errno = data->errorno; |
|
|
2451 | PL_laststype = data->laststype; |
|
|
2452 | PL_laststatval = data->laststatval; |
|
|
2453 | PL_statcache = data->statcache; |
|
|
2454 | |
|
|
2455 | SvREFCNT_dec (data_sv); |
|
|
2456 | } |
|
|
2457 | |
|
|
2458 | /* push result values */ |
|
|
2459 | { |
|
|
2460 | dSP; |
|
|
2461 | int i; |
|
|
2462 | |
|
|
2463 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2464 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2465 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2466 | |
|
|
2467 | PUTBACK; |
|
|
2468 | } |
|
|
2469 | |
|
|
2470 | return 0; |
|
|
2471 | } |
|
|
2472 | |
|
|
2473 | static void |
|
|
2474 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2475 | { |
|
|
2476 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2477 | SV *coro_hv = SvRV (coro_current); |
|
|
2478 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2479 | |
|
|
2480 | /* put our coroutine id on the state arg */ |
|
|
2481 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2482 | |
|
|
2483 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2484 | if (coro->prio) |
|
|
2485 | { |
|
|
2486 | dSP; |
|
|
2487 | |
|
|
2488 | static SV *prio_cv; |
|
|
2489 | static SV *prio_sv; |
|
|
2490 | |
|
|
2491 | if (expect_false (!prio_cv)) |
|
|
2492 | { |
|
|
2493 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2494 | prio_sv = newSViv (0); |
|
|
2495 | } |
|
|
2496 | |
|
|
2497 | PUSHMARK (SP); |
|
|
2498 | sv_setiv (prio_sv, coro->prio); |
|
|
2499 | XPUSHs (prio_sv); |
|
|
2500 | |
|
|
2501 | PUTBACK; |
|
|
2502 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2503 | } |
|
|
2504 | |
|
|
2505 | /* now call the original request */ |
|
|
2506 | { |
|
|
2507 | dSP; |
|
|
2508 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2509 | int i; |
|
|
2510 | |
|
|
2511 | PUSHMARK (SP); |
|
|
2512 | |
|
|
2513 | /* first push all args to the stack */ |
|
|
2514 | EXTEND (SP, items + 1); |
|
|
2515 | |
|
|
2516 | for (i = 0; i < items; ++i) |
|
|
2517 | PUSHs (arg [i]); |
|
|
2518 | |
|
|
2519 | /* now push the callback closure */ |
|
|
2520 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2521 | |
|
|
2522 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2523 | PUTBACK; |
|
|
2524 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2528 | frame->data = (void *)state; |
|
|
2529 | frame->prepare = prepare_schedule; |
|
|
2530 | frame->check = slf_check_aio_req; |
|
|
2531 | } |
|
|
2532 | |
|
|
2533 | static void |
|
|
2534 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2535 | { |
|
|
2536 | dXSARGS; |
|
|
2537 | |
|
|
2538 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2539 | |
|
|
2540 | XSRETURN_EMPTY; |
|
|
2541 | } |
|
|
2542 | |
|
|
2543 | /*****************************************************************************/ |
1815 | |
2544 | |
1816 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2545 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1817 | |
2546 | |
1818 | PROTOTYPES: DISABLE |
2547 | PROTOTYPES: DISABLE |
1819 | |
2548 | |
1820 | BOOT: |
2549 | BOOT: |
1821 | { |
2550 | { |
1822 | #ifdef USE_ITHREADS |
2551 | #ifdef USE_ITHREADS |
1823 | MUTEX_INIT (&coro_lock); |
|
|
1824 | # if CORO_PTHREAD |
2552 | # if CORO_PTHREAD |
1825 | coro_thx = PERL_GET_CONTEXT; |
2553 | coro_thx = PERL_GET_CONTEXT; |
1826 | # endif |
2554 | # endif |
1827 | #endif |
2555 | #endif |
1828 | BOOT_PAGESIZE; |
2556 | BOOT_PAGESIZE; |
… | |
… | |
1849 | main_top_env = PL_top_env; |
2577 | main_top_env = PL_top_env; |
1850 | |
2578 | |
1851 | while (main_top_env->je_prev) |
2579 | while (main_top_env->je_prev) |
1852 | main_top_env = main_top_env->je_prev; |
2580 | main_top_env = main_top_env->je_prev; |
1853 | |
2581 | |
|
|
2582 | { |
|
|
2583 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2584 | |
|
|
2585 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2586 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2587 | newSVpv ("coro_slf", 0), 0); |
|
|
2588 | |
|
|
2589 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2590 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2591 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2592 | } |
|
|
2593 | |
1854 | coroapi.ver = CORO_API_VERSION; |
2594 | coroapi.ver = CORO_API_VERSION; |
1855 | coroapi.rev = CORO_API_REVISION; |
2595 | coroapi.rev = CORO_API_REVISION; |
|
|
2596 | |
1856 | coroapi.transfer = api_transfer; |
2597 | coroapi.transfer = api_transfer; |
|
|
2598 | |
|
|
2599 | coroapi.sv_state = SvSTATE_; |
|
|
2600 | coroapi.execute_slf = api_execute_slf; |
|
|
2601 | coroapi.prepare_nop = prepare_nop; |
|
|
2602 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2603 | coroapi.prepare_cede = prepare_cede; |
|
|
2604 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1857 | |
2605 | |
1858 | { |
2606 | { |
1859 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2607 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1860 | |
2608 | |
1861 | if (!svp) croak ("Time::HiRes is required"); |
2609 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
1867 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2615 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1868 | } |
2616 | } |
1869 | |
2617 | |
1870 | SV * |
2618 | SV * |
1871 | new (char *klass, ...) |
2619 | new (char *klass, ...) |
|
|
2620 | ALIAS: |
|
|
2621 | Coro::new = 1 |
1872 | CODE: |
2622 | CODE: |
1873 | { |
2623 | { |
1874 | struct coro *coro; |
2624 | struct coro *coro; |
1875 | MAGIC *mg; |
2625 | MAGIC *mg; |
1876 | HV *hv; |
2626 | HV *hv; |
|
|
2627 | CV *cb; |
1877 | int i; |
2628 | int i; |
|
|
2629 | |
|
|
2630 | if (items > 1) |
|
|
2631 | { |
|
|
2632 | cb = coro_sv_2cv (ST (1)); |
|
|
2633 | |
|
|
2634 | if (CvISXSUB (cb)) |
|
|
2635 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2636 | |
|
|
2637 | if (!CvROOT (cb)) |
|
|
2638 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2639 | } |
1878 | |
2640 | |
1879 | Newz (0, coro, 1, struct coro); |
2641 | Newz (0, coro, 1, struct coro); |
1880 | coro->args = newAV (); |
2642 | coro->args = newAV (); |
1881 | coro->flags = CF_NEW; |
2643 | coro->flags = CF_NEW; |
1882 | |
2644 | |
… | |
… | |
1887 | coro->hv = hv = newHV (); |
2649 | coro->hv = hv = newHV (); |
1888 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2650 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
1889 | mg->mg_flags |= MGf_DUP; |
2651 | mg->mg_flags |= MGf_DUP; |
1890 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2652 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1891 | |
2653 | |
|
|
2654 | if (items > 1) |
|
|
2655 | { |
1892 | av_extend (coro->args, items - 1); |
2656 | av_extend (coro->args, items - 1 + ix); |
|
|
2657 | |
|
|
2658 | if (ix) |
|
|
2659 | { |
|
|
2660 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2661 | cb = coro_run_cv; |
|
|
2662 | } |
|
|
2663 | |
|
|
2664 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2665 | |
1893 | for (i = 1; i < items; i++) |
2666 | for (i = 2; i < items; i++) |
1894 | av_push (coro->args, newSVsv (ST (i))); |
2667 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2668 | } |
1895 | } |
2669 | } |
1896 | OUTPUT: |
2670 | OUTPUT: |
1897 | RETVAL |
2671 | RETVAL |
1898 | |
2672 | |
1899 | # these not obviously related functions are all rolled into the same xs |
|
|
1900 | # function to increase chances that they all will call transfer with the same |
|
|
1901 | # stack offset |
|
|
1902 | void |
2673 | void |
1903 | _set_stacklevel (...) |
2674 | transfer (...) |
1904 | ALIAS: |
2675 | PROTOTYPE: $$ |
1905 | Coro::State::transfer = 1 |
2676 | CODE: |
1906 | Coro::schedule = 2 |
2677 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1907 | Coro::cede = 3 |
|
|
1908 | Coro::cede_notself = 4 |
|
|
1909 | CODE: |
|
|
1910 | { |
|
|
1911 | struct transfer_args ta; |
|
|
1912 | |
|
|
1913 | PUTBACK; |
|
|
1914 | switch (ix) |
|
|
1915 | { |
|
|
1916 | case 0: |
|
|
1917 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (ST (0))); |
|
|
1918 | break; |
|
|
1919 | |
|
|
1920 | case 1: |
|
|
1921 | if (items != 2) |
|
|
1922 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1923 | |
|
|
1924 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1925 | break; |
|
|
1926 | |
|
|
1927 | case 2: |
|
|
1928 | prepare_schedule (aTHX_ &ta); |
|
|
1929 | break; |
|
|
1930 | |
|
|
1931 | case 3: |
|
|
1932 | prepare_cede (aTHX_ &ta); |
|
|
1933 | break; |
|
|
1934 | |
|
|
1935 | case 4: |
|
|
1936 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1937 | XSRETURN_EMPTY; |
|
|
1938 | |
|
|
1939 | break; |
|
|
1940 | } |
|
|
1941 | SPAGAIN; |
|
|
1942 | |
|
|
1943 | BARRIER; |
|
|
1944 | PUTBACK; |
|
|
1945 | TRANSFER (ta, 0); |
|
|
1946 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1947 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1948 | } |
|
|
1949 | |
2678 | |
1950 | bool |
2679 | bool |
1951 | _destroy (SV *coro_sv) |
2680 | _destroy (SV *coro_sv) |
1952 | CODE: |
2681 | CODE: |
1953 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2682 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1960 | CODE: |
2689 | CODE: |
1961 | _exit (code); |
2690 | _exit (code); |
1962 | |
2691 | |
1963 | int |
2692 | int |
1964 | cctx_stacksize (int new_stacksize = 0) |
2693 | cctx_stacksize (int new_stacksize = 0) |
|
|
2694 | PROTOTYPE: ;$ |
1965 | CODE: |
2695 | CODE: |
1966 | RETVAL = cctx_stacksize; |
2696 | RETVAL = cctx_stacksize; |
1967 | if (new_stacksize) |
2697 | if (new_stacksize) |
1968 | { |
2698 | { |
1969 | cctx_stacksize = new_stacksize; |
2699 | cctx_stacksize = new_stacksize; |
… | |
… | |
1972 | OUTPUT: |
2702 | OUTPUT: |
1973 | RETVAL |
2703 | RETVAL |
1974 | |
2704 | |
1975 | int |
2705 | int |
1976 | cctx_max_idle (int max_idle = 0) |
2706 | cctx_max_idle (int max_idle = 0) |
|
|
2707 | PROTOTYPE: ;$ |
1977 | CODE: |
2708 | CODE: |
1978 | RETVAL = cctx_max_idle; |
2709 | RETVAL = cctx_max_idle; |
1979 | if (max_idle > 1) |
2710 | if (max_idle > 1) |
1980 | cctx_max_idle = max_idle; |
2711 | cctx_max_idle = max_idle; |
1981 | OUTPUT: |
2712 | OUTPUT: |
1982 | RETVAL |
2713 | RETVAL |
1983 | |
2714 | |
1984 | int |
2715 | int |
1985 | cctx_count () |
2716 | cctx_count () |
|
|
2717 | PROTOTYPE: |
1986 | CODE: |
2718 | CODE: |
1987 | RETVAL = cctx_count; |
2719 | RETVAL = cctx_count; |
1988 | OUTPUT: |
2720 | OUTPUT: |
1989 | RETVAL |
2721 | RETVAL |
1990 | |
2722 | |
1991 | int |
2723 | int |
1992 | cctx_idle () |
2724 | cctx_idle () |
|
|
2725 | PROTOTYPE: |
1993 | CODE: |
2726 | CODE: |
1994 | RETVAL = cctx_idle; |
2727 | RETVAL = cctx_idle; |
1995 | OUTPUT: |
2728 | OUTPUT: |
1996 | RETVAL |
2729 | RETVAL |
1997 | |
2730 | |
1998 | void |
2731 | void |
1999 | list () |
2732 | list () |
|
|
2733 | PROTOTYPE: |
2000 | PPCODE: |
2734 | PPCODE: |
2001 | { |
2735 | { |
2002 | struct coro *coro; |
2736 | struct coro *coro; |
2003 | for (coro = coro_first; coro; coro = coro->next) |
2737 | for (coro = coro_first; coro; coro = coro->next) |
2004 | if (coro->hv) |
2738 | if (coro->hv) |
… | |
… | |
2066 | |
2800 | |
2067 | void |
2801 | void |
2068 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2802 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2069 | PROTOTYPE: $;$ |
2803 | PROTOTYPE: $;$ |
2070 | CODE: |
2804 | CODE: |
|
|
2805 | { |
|
|
2806 | struct coro *current = SvSTATE_current; |
|
|
2807 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
2071 | SvREFCNT_dec (self->throw); |
2808 | SvREFCNT_dec (*throwp); |
2072 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2809 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2810 | } |
2073 | |
2811 | |
2074 | void |
2812 | void |
2075 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2813 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2814 | PROTOTYPE: $;$ |
|
|
2815 | C_ARGS: aTHX_ coro, flags |
2076 | |
2816 | |
2077 | SV * |
2817 | SV * |
2078 | has_cctx (Coro::State coro) |
2818 | has_cctx (Coro::State coro) |
2079 | PROTOTYPE: $ |
2819 | PROTOTYPE: $ |
2080 | CODE: |
2820 | CODE: |
… | |
… | |
2104 | OUTPUT: |
2844 | OUTPUT: |
2105 | RETVAL |
2845 | RETVAL |
2106 | |
2846 | |
2107 | void |
2847 | void |
2108 | force_cctx () |
2848 | force_cctx () |
|
|
2849 | PROTOTYPE: |
2109 | CODE: |
2850 | CODE: |
2110 | struct coro *coro = SvSTATE (coro_current); |
|
|
2111 | coro->cctx->idle_sp = 0; |
2851 | SvSTATE_current->cctx->idle_sp = 0; |
2112 | |
2852 | |
2113 | void |
2853 | void |
2114 | swap_defsv (Coro::State self) |
2854 | swap_defsv (Coro::State self) |
2115 | PROTOTYPE: $ |
2855 | PROTOTYPE: $ |
2116 | ALIAS: |
2856 | ALIAS: |
2117 | swap_defav = 1 |
2857 | swap_defav = 1 |
2118 | CODE: |
2858 | CODE: |
2119 | if (!self->slot) |
2859 | if (!self->slot) |
2120 | croak ("cannot swap state with coroutine that has no saved state"); |
2860 | croak ("cannot swap state with coroutine that has no saved state,"); |
2121 | else |
2861 | else |
2122 | { |
2862 | { |
2123 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2863 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2124 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2864 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2125 | |
2865 | |
2126 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2866 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2127 | } |
2867 | } |
2128 | |
2868 | |
|
|
2869 | |
2129 | MODULE = Coro::State PACKAGE = Coro |
2870 | MODULE = Coro::State PACKAGE = Coro |
2130 | |
2871 | |
2131 | BOOT: |
2872 | BOOT: |
2132 | { |
2873 | { |
2133 | int i; |
2874 | int i; |
2134 | |
2875 | |
2135 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2876 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2136 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2877 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2137 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2878 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2138 | |
2879 | coro_run_cv = get_cv (aTHX_ "Coro::_terminate", GV_ADD); |
2139 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
2880 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); |
2140 | SvREADONLY_on (coro_current); |
2881 | SvREADONLY_on (coro_current); |
2141 | |
2882 | |
2142 | coro_stash = gv_stashpv ("Coro", TRUE); |
2883 | coro_stash = gv_stashpv ("Coro", TRUE); |
2143 | |
2884 | |
2144 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2885 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
… | |
… | |
2157 | coroapi.schedule = api_schedule; |
2898 | coroapi.schedule = api_schedule; |
2158 | coroapi.cede = api_cede; |
2899 | coroapi.cede = api_cede; |
2159 | coroapi.cede_notself = api_cede_notself; |
2900 | coroapi.cede_notself = api_cede_notself; |
2160 | coroapi.ready = api_ready; |
2901 | coroapi.ready = api_ready; |
2161 | coroapi.is_ready = api_is_ready; |
2902 | coroapi.is_ready = api_is_ready; |
2162 | coroapi.nready = &coro_nready; |
2903 | coroapi.nready = coro_nready; |
2163 | coroapi.current = coro_current; |
2904 | coroapi.current = coro_current; |
2164 | |
2905 | |
2165 | GCoroAPI = &coroapi; |
2906 | /*GCoroAPI = &coroapi;*/ |
2166 | sv_setiv (sv, (IV)&coroapi); |
2907 | sv_setiv (sv, (IV)&coroapi); |
2167 | SvREADONLY_on (sv); |
2908 | SvREADONLY_on (sv); |
2168 | } |
2909 | } |
2169 | } |
2910 | } |
|
|
2911 | |
|
|
2912 | void |
|
|
2913 | schedule (...) |
|
|
2914 | CODE: |
|
|
2915 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2916 | |
|
|
2917 | void |
|
|
2918 | cede (...) |
|
|
2919 | CODE: |
|
|
2920 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2921 | |
|
|
2922 | void |
|
|
2923 | cede_notself (...) |
|
|
2924 | CODE: |
|
|
2925 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2170 | |
2926 | |
2171 | void |
2927 | void |
2172 | _set_current (SV *current) |
2928 | _set_current (SV *current) |
2173 | PROTOTYPE: $ |
2929 | PROTOTYPE: $ |
2174 | CODE: |
2930 | CODE: |
… | |
… | |
2177 | |
2933 | |
2178 | void |
2934 | void |
2179 | _set_readyhook (SV *hook) |
2935 | _set_readyhook (SV *hook) |
2180 | PROTOTYPE: $ |
2936 | PROTOTYPE: $ |
2181 | CODE: |
2937 | CODE: |
2182 | LOCK; |
|
|
2183 | SvREFCNT_dec (coro_readyhook); |
2938 | SvREFCNT_dec (coro_readyhook); |
2184 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2939 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2185 | UNLOCK; |
|
|
2186 | |
2940 | |
2187 | int |
2941 | int |
2188 | prio (Coro::State coro, int newprio = 0) |
2942 | prio (Coro::State coro, int newprio = 0) |
|
|
2943 | PROTOTYPE: $;$ |
2189 | ALIAS: |
2944 | ALIAS: |
2190 | nice = 1 |
2945 | nice = 1 |
2191 | CODE: |
2946 | CODE: |
2192 | { |
2947 | { |
2193 | RETVAL = coro->prio; |
2948 | RETVAL = coro->prio; |
… | |
… | |
2208 | |
2963 | |
2209 | SV * |
2964 | SV * |
2210 | ready (SV *self) |
2965 | ready (SV *self) |
2211 | PROTOTYPE: $ |
2966 | PROTOTYPE: $ |
2212 | CODE: |
2967 | CODE: |
2213 | RETVAL = boolSV (api_ready (self)); |
2968 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2214 | OUTPUT: |
2969 | OUTPUT: |
2215 | RETVAL |
2970 | RETVAL |
2216 | |
2971 | |
2217 | int |
2972 | int |
2218 | nready (...) |
2973 | nready (...) |
… | |
… | |
2225 | # for async_pool speedup |
2980 | # for async_pool speedup |
2226 | void |
2981 | void |
2227 | _pool_1 (SV *cb) |
2982 | _pool_1 (SV *cb) |
2228 | CODE: |
2983 | CODE: |
2229 | { |
2984 | { |
2230 | struct coro *coro = SvSTATE (coro_current); |
|
|
2231 | HV *hv = (HV *)SvRV (coro_current); |
2985 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2986 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2232 | AV *defav = GvAV (PL_defgv); |
2987 | AV *defav = GvAV (PL_defgv); |
2233 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2988 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2234 | AV *invoke_av; |
2989 | AV *invoke_av; |
2235 | int i, len; |
2990 | int i, len; |
2236 | |
2991 | |
… | |
… | |
2257 | { |
3012 | { |
2258 | av_fill (defav, len - 1); |
3013 | av_fill (defav, len - 1); |
2259 | for (i = 0; i < len; ++i) |
3014 | for (i = 0; i < len; ++i) |
2260 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
3015 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2261 | } |
3016 | } |
2262 | |
|
|
2263 | SvREFCNT_dec (invoke); |
|
|
2264 | } |
3017 | } |
2265 | |
3018 | |
2266 | void |
3019 | void |
2267 | _pool_2 (SV *cb) |
3020 | _pool_2 (SV *cb) |
2268 | CODE: |
3021 | CODE: |
2269 | { |
3022 | { |
2270 | struct coro *coro = SvSTATE (coro_current); |
3023 | HV *hv = (HV *)SvRV (coro_current); |
|
|
3024 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2271 | |
3025 | |
2272 | sv_setsv (cb, &PL_sv_undef); |
3026 | sv_setsv (cb, &PL_sv_undef); |
2273 | |
3027 | |
2274 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
3028 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2275 | coro->saved_deffh = 0; |
3029 | coro->saved_deffh = 0; |
… | |
… | |
2282 | SvREFCNT_dec (old); |
3036 | SvREFCNT_dec (old); |
2283 | croak ("\3async_pool terminate\2\n"); |
3037 | croak ("\3async_pool terminate\2\n"); |
2284 | } |
3038 | } |
2285 | |
3039 | |
2286 | av_clear (GvAV (PL_defgv)); |
3040 | av_clear (GvAV (PL_defgv)); |
2287 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
3041 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2288 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
3042 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2289 | |
3043 | |
2290 | coro->prio = 0; |
3044 | coro->prio = 0; |
2291 | |
3045 | |
2292 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
3046 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2293 | api_trace (coro_current, 0); |
3047 | api_trace (aTHX_ coro_current, 0); |
2294 | |
3048 | |
2295 | av_push (av_async_pool, newSVsv (coro_current)); |
3049 | av_push (av_async_pool, newSVsv (coro_current)); |
2296 | } |
3050 | } |
2297 | |
3051 | |
2298 | #if 0 |
|
|
2299 | |
|
|
2300 | void |
|
|
2301 | _generator_call (...) |
|
|
2302 | PROTOTYPE: @ |
|
|
2303 | PPCODE: |
|
|
2304 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2305 | xxxx |
|
|
2306 | abort (); |
|
|
2307 | |
|
|
2308 | SV * |
3052 | SV * |
2309 | gensub (SV *sub, ...) |
3053 | rouse_cb () |
2310 | PROTOTYPE: &;@ |
3054 | PROTOTYPE: |
2311 | CODE: |
3055 | CODE: |
2312 | { |
3056 | RETVAL = coro_new_rouse_cb (aTHX); |
2313 | struct coro *coro; |
|
|
2314 | MAGIC *mg; |
|
|
2315 | CV *xcv; |
|
|
2316 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2317 | int i; |
|
|
2318 | |
|
|
2319 | CvGV (ncv) = CvGV (cv); |
|
|
2320 | CvFILE (ncv) = CvFILE (cv); |
|
|
2321 | |
|
|
2322 | Newz (0, coro, 1, struct coro); |
|
|
2323 | coro->args = newAV (); |
|
|
2324 | coro->flags = CF_NEW; |
|
|
2325 | |
|
|
2326 | av_extend (coro->args, items - 1); |
|
|
2327 | for (i = 1; i < items; i++) |
|
|
2328 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2329 | |
|
|
2330 | CvISXSUB_on (ncv); |
|
|
2331 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2332 | |
|
|
2333 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2334 | |
|
|
2335 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2336 | CvANON_on (ncv); |
|
|
2337 | |
|
|
2338 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2339 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2340 | } |
|
|
2341 | OUTPUT: |
3057 | OUTPUT: |
2342 | RETVAL |
3058 | RETVAL |
2343 | |
3059 | |
2344 | #endif |
|
|
2345 | |
|
|
2346 | |
|
|
2347 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2348 | |
|
|
2349 | void |
3060 | void |
2350 | _get_state (SV *self) |
3061 | rouse_wait (...) |
|
|
3062 | PROTOTYPE: ;$ |
2351 | PPCODE: |
3063 | PPCODE: |
2352 | { |
3064 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2353 | AV *defav = GvAV (PL_defgv); |
|
|
2354 | AV *av = newAV (); |
|
|
2355 | int i; |
|
|
2356 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2357 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2358 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2359 | SvPOK_only (data_sv); |
|
|
2360 | |
3065 | |
2361 | data->errorno = errno; |
|
|
2362 | data->laststype = PL_laststype; |
|
|
2363 | data->laststatval = PL_laststatval; |
|
|
2364 | data->statcache = PL_statcache; |
|
|
2365 | |
3066 | |
2366 | av_extend (av, AvFILLp (defav) + 1 + 1); |
3067 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2367 | |
3068 | |
2368 | for (i = 0; i <= AvFILLp (defav); ++i) |
3069 | BOOT: |
2369 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3070 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2370 | |
3071 | |
2371 | av_push (av, data_sv); |
|
|
2372 | |
3072 | |
2373 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
3073 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2374 | |
3074 | |
2375 | api_ready (self); |
3075 | SV * |
2376 | } |
3076 | new (SV *klass, SV *count = 0) |
|
|
3077 | CODE: |
|
|
3078 | RETVAL = sv_bless ( |
|
|
3079 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
|
|
3080 | GvSTASH (CvGV (cv)) |
|
|
3081 | ); |
|
|
3082 | OUTPUT: |
|
|
3083 | RETVAL |
|
|
3084 | |
|
|
3085 | # helper for Coro::Channel |
|
|
3086 | SV * |
|
|
3087 | _alloc (int count) |
|
|
3088 | CODE: |
|
|
3089 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3090 | OUTPUT: |
|
|
3091 | RETVAL |
|
|
3092 | |
|
|
3093 | SV * |
|
|
3094 | count (SV *self) |
|
|
3095 | CODE: |
|
|
3096 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3097 | OUTPUT: |
|
|
3098 | RETVAL |
2377 | |
3099 | |
2378 | void |
3100 | void |
2379 | _set_state (SV *state) |
3101 | up (SV *self, int adjust = 1) |
2380 | PROTOTYPE: $ |
3102 | ALIAS: |
|
|
3103 | adjust = 1 |
|
|
3104 | CODE: |
|
|
3105 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3106 | |
|
|
3107 | void |
|
|
3108 | down (...) |
|
|
3109 | CODE: |
|
|
3110 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3111 | |
|
|
3112 | void |
|
|
3113 | wait (...) |
|
|
3114 | CODE: |
|
|
3115 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3116 | |
|
|
3117 | void |
|
|
3118 | try (SV *self) |
|
|
3119 | PPCODE: |
|
|
3120 | { |
|
|
3121 | AV *av = (AV *)SvRV (self); |
|
|
3122 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3123 | IV count = SvIVX (count_sv); |
|
|
3124 | |
|
|
3125 | if (count > 0) |
|
|
3126 | { |
|
|
3127 | --count; |
|
|
3128 | SvIVX (count_sv) = count; |
|
|
3129 | XSRETURN_YES; |
|
|
3130 | } |
|
|
3131 | else |
|
|
3132 | XSRETURN_NO; |
|
|
3133 | } |
|
|
3134 | |
|
|
3135 | void |
|
|
3136 | waiters (SV *self) |
|
|
3137 | PPCODE: |
|
|
3138 | { |
|
|
3139 | AV *av = (AV *)SvRV (self); |
|
|
3140 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3141 | |
|
|
3142 | if (GIMME_V == G_SCALAR) |
|
|
3143 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3144 | else |
|
|
3145 | { |
|
|
3146 | int i; |
|
|
3147 | EXTEND (SP, wcount); |
|
|
3148 | for (i = 1; i <= wcount; ++i) |
|
|
3149 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3150 | } |
|
|
3151 | } |
|
|
3152 | |
|
|
3153 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3154 | |
|
|
3155 | SV * |
|
|
3156 | new (SV *klass) |
2381 | PPCODE: |
3157 | CODE: |
|
|
3158 | RETVAL = sv_bless ( |
|
|
3159 | coro_waitarray_new (aTHX_ 0), |
|
|
3160 | GvSTASH (CvGV (cv)) |
|
|
3161 | ); |
|
|
3162 | OUTPUT: |
|
|
3163 | RETVAL |
|
|
3164 | |
|
|
3165 | void |
|
|
3166 | wait (...) |
|
|
3167 | CODE: |
|
|
3168 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3169 | |
|
|
3170 | void |
|
|
3171 | broadcast (SV *self) |
|
|
3172 | CODE: |
2382 | { |
3173 | { |
2383 | AV *av = (AV *)SvRV (state); |
3174 | AV *av = (AV *)SvRV (self); |
2384 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
3175 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
2385 | int i; |
3176 | } |
2386 | |
3177 | |
2387 | errno = data->errorno; |
3178 | void |
2388 | PL_laststype = data->laststype; |
3179 | send (SV *self) |
2389 | PL_laststatval = data->laststatval; |
3180 | CODE: |
2390 | PL_statcache = data->statcache; |
3181 | { |
|
|
3182 | AV *av = (AV *)SvRV (self); |
2391 | |
3183 | |
2392 | EXTEND (SP, AvFILLp (av)); |
3184 | if (AvFILLp (av)) |
2393 | for (i = 0; i < AvFILLp (av); ++i) |
3185 | coro_signal_wake (aTHX_ av, 1); |
2394 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
3186 | else |
|
|
3187 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2395 | } |
3188 | } |
|
|
3189 | |
|
|
3190 | IV |
|
|
3191 | awaited (SV *self) |
|
|
3192 | CODE: |
|
|
3193 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3194 | OUTPUT: |
|
|
3195 | RETVAL |
2396 | |
3196 | |
2397 | |
3197 | |
2398 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3198 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2399 | |
3199 | |
2400 | BOOT: |
3200 | BOOT: |
2401 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3201 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2402 | |
3202 | |
2403 | SV * |
3203 | void |
2404 | _schedule (...) |
3204 | _schedule (...) |
2405 | PROTOTYPE: @ |
|
|
2406 | CODE: |
3205 | CODE: |
2407 | { |
3206 | { |
2408 | static int incede; |
3207 | static int incede; |
2409 | |
3208 | |
2410 | api_cede_notself (); |
3209 | api_cede_notself (aTHX); |
2411 | |
3210 | |
2412 | ++incede; |
3211 | ++incede; |
2413 | while (coro_nready >= incede && api_cede ()) |
3212 | while (coro_nready >= incede && api_cede (aTHX)) |
2414 | ; |
3213 | ; |
2415 | |
3214 | |
2416 | sv_setsv (sv_activity, &PL_sv_undef); |
3215 | sv_setsv (sv_activity, &PL_sv_undef); |
2417 | if (coro_nready >= incede) |
3216 | if (coro_nready >= incede) |
2418 | { |
3217 | { |
2419 | PUSHMARK (SP); |
3218 | PUSHMARK (SP); |
2420 | PUTBACK; |
3219 | PUTBACK; |
2421 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3220 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2422 | SPAGAIN; |
|
|
2423 | } |
3221 | } |
2424 | |
3222 | |
2425 | --incede; |
3223 | --incede; |
2426 | } |
3224 | } |
2427 | |
3225 | |
2428 | |
3226 | |
2429 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3227 | MODULE = Coro::State PACKAGE = Coro::AIO |
2430 | |
3228 | |
2431 | BOOT: |
3229 | void |
2432 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3230 | _register (char *target, char *proto, SV *req) |
|
|
3231 | CODE: |
|
|
3232 | { |
|
|
3233 | CV *req_cv = coro_sv_2cv (req); |
|
|
3234 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3235 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3236 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3237 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3238 | } |
2433 | |
3239 | |