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1 | #define CORO_CLONE 1 //D |
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2 | |
1 | #include "libcoro/coro.c" |
3 | #include "libcoro/coro.c" |
2 | |
4 | |
3 | #define PERL_NO_GET_CONTEXT |
5 | #define PERL_NO_GET_CONTEXT |
4 | #define PERL_EXT |
6 | #define PERL_EXT |
5 | |
7 | |
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16 | |
18 | |
17 | #ifdef WIN32 |
19 | #ifdef WIN32 |
18 | # undef setjmp |
20 | # undef setjmp |
19 | # undef longjmp |
21 | # undef longjmp |
20 | # undef _exit |
22 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
23 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
24 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
25 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
26 | #endif |
25 | |
27 | |
26 | #ifdef HAVE_MMAP |
28 | #ifdef HAVE_MMAP |
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55 | |
57 | |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
58 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
57 | (PERL_REVISION > (a) \ |
59 | (PERL_REVISION > (a) \ |
58 | || (PERL_REVISION == (a) \ |
60 | || (PERL_REVISION == (a) \ |
59 | && (PERL_VERSION > (b) \ |
61 | && (PERL_VERSION > (b) \ |
60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
62 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
61 | |
63 | |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
64 | #if !PERL_VERSION_ATLEAST (5,6,0) |
63 | # ifndef PL_ppaddr |
65 | # ifndef PL_ppaddr |
64 | # define PL_ppaddr ppaddr |
66 | # define PL_ppaddr ppaddr |
65 | # endif |
67 | # endif |
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95 | # define GV_NOTQUAL 0 |
97 | # define GV_NOTQUAL 0 |
96 | #endif |
98 | #endif |
97 | #ifndef newSV |
99 | #ifndef newSV |
98 | # define newSV(l) NEWSV(0,l) |
100 | # define newSV(l) NEWSV(0,l) |
99 | #endif |
101 | #endif |
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102 | #ifndef CvISXSUB_on |
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103 | # define CvISXSUB_on(cv) (void)cv |
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104 | #endif |
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105 | #ifndef CvISXSUB |
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106 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
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107 | #endif |
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108 | #ifndef Newx |
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109 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
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110 | #endif |
100 | |
111 | |
101 | /* 5.8.7 */ |
112 | /* 5.8.7 */ |
102 | #ifndef SvRV_set |
113 | #ifndef SvRV_set |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
114 | # define SvRV_set(s,v) SvRV(s) = (v) |
104 | #endif |
115 | #endif |
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117 | #endif |
128 | #endif |
118 | |
129 | |
119 | /* The next macros try to return the current stack pointer, in an as |
130 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
131 | * portable way as possible. */ |
121 | #if __GNUC__ >= 4 |
132 | #if __GNUC__ >= 4 |
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133 | # define dSTACKLEVEL int stacklevel_dummy |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
134 | # define STACKLEVEL __builtin_frame_address (0) |
123 | #else |
135 | #else |
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
136 | # define dSTACKLEVEL volatile void *stacklevel |
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137 | # define STACKLEVEL ((void *)&stacklevel) |
125 | #endif |
138 | #endif |
126 | |
139 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
140 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
128 | |
141 | |
129 | #if __GNUC__ >= 3 |
142 | #if __GNUC__ >= 3 |
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140 | #define expect_true(expr) expect ((expr) != 0, 1) |
153 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
154 | |
142 | #define NOINLINE attribute ((noinline)) |
155 | #define NOINLINE attribute ((noinline)) |
143 | |
156 | |
144 | #include "CoroAPI.h" |
157 | #include "CoroAPI.h" |
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158 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
159 | |
146 | #ifdef USE_ITHREADS |
160 | #ifdef USE_ITHREADS |
147 | # if CORO_PTHREAD |
161 | # if CORO_PTHREAD |
148 | static void *coro_thx; |
162 | static void *coro_thx; |
149 | # endif |
163 | # endif |
150 | #endif |
164 | #endif |
151 | |
165 | |
152 | /* helper storage struct for Coro::AIO */ |
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153 | struct io_state |
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154 | { |
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155 | AV *res; |
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156 | int errorno; |
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157 | I32 laststype; /* U16 in 5.10.0 */ |
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158 | int laststatval; |
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159 | Stat_t statcache; |
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160 | }; |
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161 | |
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162 | static double (*nvtime)(); /* so why doesn't it take void? */ |
166 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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167 | |
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168 | /* we hijack an hopefully unused CV flag for our purposes */ |
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169 | #define CVf_SLF 0x4000 |
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170 | static OP *pp_slf (pTHX); |
163 | |
171 | |
164 | static U32 cctx_gen; |
172 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
173 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
174 | static struct CoroAPI coroapi; |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
175 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
168 | static JMPENV *main_top_env; |
176 | static JMPENV *main_top_env; |
169 | static HV *coro_state_stash, *coro_stash; |
177 | static HV *coro_state_stash, *coro_stash; |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
178 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
171 | static volatile struct coro *transfer_next; |
179 | |
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180 | static AV *av_destroy; /* destruction queue */ |
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181 | static SV *sv_manager; /* the manager coro */ |
172 | |
182 | |
173 | static GV *irsgv; /* $/ */ |
183 | static GV *irsgv; /* $/ */ |
174 | static GV *stdoutgv; /* *STDOUT */ |
184 | static GV *stdoutgv; /* *STDOUT */ |
175 | static SV *rv_diehook; |
185 | static SV *rv_diehook; |
176 | static SV *rv_warnhook; |
186 | static SV *rv_warnhook; |
177 | static HV *hv_sig; /* %SIG */ |
187 | static HV *hv_sig; /* %SIG */ |
178 | |
188 | |
179 | /* async_pool helper stuff */ |
189 | /* async_pool helper stuff */ |
180 | static SV *sv_pool_rss; |
190 | static SV *sv_pool_rss; |
181 | static SV *sv_pool_size; |
191 | static SV *sv_pool_size; |
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192 | static SV *sv_async_pool_idle; /* description string */ |
182 | static AV *av_async_pool; |
193 | static AV *av_async_pool; /* idle pool */ |
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194 | static SV *sv_Coro; /* class string */ |
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195 | static CV *cv_pool_handler; |
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196 | static CV *cv_coro_state_new; |
183 | |
197 | |
184 | /* Coro::AnyEvent */ |
198 | /* Coro::AnyEvent */ |
185 | static SV *sv_activity; |
199 | static SV *sv_activity; |
186 | |
200 | |
187 | static struct coro_cctx *cctx_first; |
201 | static struct coro_cctx *cctx_first; |
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242 | /* this is a structure representing a perl-level coroutine */ |
256 | /* this is a structure representing a perl-level coroutine */ |
243 | struct coro { |
257 | struct coro { |
244 | /* the C coroutine allocated to this perl coroutine, if any */ |
258 | /* the C coroutine allocated to this perl coroutine, if any */ |
245 | coro_cctx *cctx; |
259 | coro_cctx *cctx; |
246 | |
260 | |
247 | /* process data */ |
261 | /* state data */ |
248 | struct CoroSLF slf_frame; /* saved slf frame */ |
262 | struct CoroSLF slf_frame; /* saved slf frame */ |
249 | AV *mainstack; |
263 | AV *mainstack; |
250 | perl_slots *slot; /* basically the saved sp */ |
264 | perl_slots *slot; /* basically the saved sp */ |
251 | |
265 | |
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266 | CV *startcv; /* the CV to execute */ |
252 | AV *args; /* data associated with this coroutine (initial args) */ |
267 | AV *args; /* data associated with this coroutine (initial args) */ |
253 | int refcnt; /* coroutines are refcounted, yes */ |
268 | int refcnt; /* coroutines are refcounted, yes */ |
254 | int flags; /* CF_ flags */ |
269 | int flags; /* CF_ flags */ |
255 | HV *hv; /* the perl hash associated with this coro, if any */ |
270 | HV *hv; /* the perl hash associated with this coro, if any */ |
256 | void (*on_destroy)(pTHX_ struct coro *coro); |
271 | void (*on_destroy)(pTHX_ struct coro *coro); |
257 | |
272 | |
258 | /* statistics */ |
273 | /* statistics */ |
259 | int usecount; /* number of transfers to this coro */ |
274 | int usecount; /* number of transfers to this coro */ |
260 | |
275 | |
261 | /* coro process data */ |
276 | /* coro process data */ |
262 | int prio; |
277 | int prio; |
263 | SV *throw; /* exception to be thrown */ |
278 | SV *except; /* exception to be thrown */ |
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279 | SV *rouse_cb; |
264 | |
280 | |
265 | /* async_pool */ |
281 | /* async_pool */ |
266 | SV *saved_deffh; |
282 | SV *saved_deffh; |
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283 | SV *invoke_cb; |
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284 | AV *invoke_av; |
267 | |
285 | |
268 | /* linked list */ |
286 | /* linked list */ |
269 | struct coro *next, *prev; |
287 | struct coro *next, *prev; |
270 | }; |
288 | }; |
271 | |
289 | |
272 | typedef struct coro *Coro__State; |
290 | typedef struct coro *Coro__State; |
273 | typedef struct coro *Coro__State_or_hashref; |
291 | typedef struct coro *Coro__State_or_hashref; |
274 | |
292 | |
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293 | /* the following variables are effectively part of the perl context */ |
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294 | /* and get copied between struct coro and these variables */ |
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295 | /* the mainr easonw e don't support windows process emulation */ |
275 | static struct CoroSLF slf_frame; /* the current slf frame */ |
296 | static struct CoroSLF slf_frame; /* the current slf frame */ |
276 | |
297 | |
277 | /** Coro ********************************************************************/ |
298 | /** Coro ********************************************************************/ |
278 | |
299 | |
279 | #define PRIO_MAX 3 |
300 | #define PRIO_MAX 3 |
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285 | |
306 | |
286 | /* for Coro.pm */ |
307 | /* for Coro.pm */ |
287 | static SV *coro_current; |
308 | static SV *coro_current; |
288 | static SV *coro_readyhook; |
309 | static SV *coro_readyhook; |
289 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
310 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
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311 | static CV *cv_coro_run, *cv_coro_terminate; |
290 | static struct coro *coro_first; |
312 | static struct coro *coro_first; |
291 | #define coro_nready coroapi.nready |
313 | #define coro_nready coroapi.nready |
292 | |
314 | |
293 | /** lowlevel stuff **********************************************************/ |
315 | /** lowlevel stuff **********************************************************/ |
294 | |
316 | |
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320 | get_hv (name, create); |
342 | get_hv (name, create); |
321 | #endif |
343 | #endif |
322 | return get_hv (name, create); |
344 | return get_hv (name, create); |
323 | } |
345 | } |
324 | |
346 | |
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347 | /* may croak */ |
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348 | INLINE CV * |
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349 | coro_sv_2cv (pTHX_ SV *sv) |
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350 | { |
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351 | HV *st; |
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352 | GV *gvp; |
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353 | return sv_2cv (sv, &st, &gvp, 0); |
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354 | } |
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355 | |
325 | static AV * |
356 | static AV * |
326 | coro_clone_padlist (pTHX_ CV *cv) |
357 | coro_derive_padlist (pTHX_ CV *cv) |
327 | { |
358 | { |
328 | AV *padlist = CvPADLIST (cv); |
359 | AV *padlist = CvPADLIST (cv); |
329 | AV *newpadlist, *newpad; |
360 | AV *newpadlist, *newpad; |
330 | |
361 | |
331 | newpadlist = newAV (); |
362 | newpadlist = newAV (); |
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381 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
412 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
382 | |
413 | |
383 | return 0; |
414 | return 0; |
384 | } |
415 | } |
385 | |
416 | |
386 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
417 | #define CORO_MAGIC_type_cv 26 |
387 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
418 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
388 | |
419 | |
389 | static MGVTBL coro_cv_vtbl = { |
420 | static MGVTBL coro_cv_vtbl = { |
390 | 0, 0, 0, 0, |
421 | 0, 0, 0, 0, |
391 | coro_cv_free |
422 | coro_cv_free |
392 | }; |
423 | }; |
393 | |
424 | |
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425 | #define CORO_MAGIC_NN(sv, type) \ |
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426 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
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427 | ? SvMAGIC (sv) \ |
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428 | : mg_find (sv, type)) |
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429 | |
394 | #define CORO_MAGIC(sv, type) \ |
430 | #define CORO_MAGIC(sv, type) \ |
395 | expect_true (SvMAGIC (sv)) \ |
431 | (expect_true (SvMAGIC (sv)) \ |
396 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
432 | ? CORO_MAGIC_NN (sv, type) \ |
397 | ? SvMAGIC (sv) \ |
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398 | : mg_find (sv, type) \ |
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399 | : 0 |
433 | : 0) |
400 | |
434 | |
401 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
435 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
402 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
436 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
403 | |
437 | |
404 | INLINE struct coro * |
438 | INLINE struct coro * |
405 | SvSTATE_ (pTHX_ SV *coro) |
439 | SvSTATE_ (pTHX_ SV *coro) |
406 | { |
440 | { |
407 | HV *stash; |
441 | HV *stash; |
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425 | return (struct coro *)mg->mg_ptr; |
459 | return (struct coro *)mg->mg_ptr; |
426 | } |
460 | } |
427 | |
461 | |
428 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
462 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
429 | |
463 | |
430 | /* fastert than SvSTATE, but expects a coroutine hv */ |
464 | /* faster than SvSTATE, but expects a coroutine hv */ |
431 | INLINE struct coro * |
465 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
432 | SvSTATE_hv (SV *sv) |
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433 | { |
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434 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
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435 | ? SvMAGIC (sv) |
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436 | : mg_find (sv, CORO_MAGIC_type_state); |
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437 | |
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438 | return (struct coro *)mg->mg_ptr; |
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439 | } |
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440 | |
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441 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
466 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
442 | |
467 | |
443 | /* the next two functions merely cache the padlists */ |
468 | /* the next two functions merely cache the padlists */ |
444 | static void |
469 | static void |
445 | get_padlist (pTHX_ CV *cv) |
470 | get_padlist (pTHX_ CV *cv) |
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452 | else |
477 | else |
453 | { |
478 | { |
454 | #if CORO_PREFER_PERL_FUNCTIONS |
479 | #if CORO_PREFER_PERL_FUNCTIONS |
455 | /* this is probably cleaner? but also slower! */ |
480 | /* this is probably cleaner? but also slower! */ |
456 | /* in practise, it seems to be less stable */ |
481 | /* in practise, it seems to be less stable */ |
457 | CV *cp = Perl_cv_clone (cv); |
482 | CV *cp = Perl_cv_clone (aTHX_ cv); |
458 | CvPADLIST (cv) = CvPADLIST (cp); |
483 | CvPADLIST (cv) = CvPADLIST (cp); |
459 | CvPADLIST (cp) = 0; |
484 | CvPADLIST (cp) = 0; |
460 | SvREFCNT_dec (cp); |
485 | SvREFCNT_dec (cp); |
461 | #else |
486 | #else |
462 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
487 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
463 | #endif |
488 | #endif |
464 | } |
489 | } |
465 | } |
490 | } |
466 | |
491 | |
467 | static void |
492 | static void |
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514 | } |
539 | } |
515 | |
540 | |
516 | PUTBACK; |
541 | PUTBACK; |
517 | } |
542 | } |
518 | |
543 | |
519 | slf_frame = c->slf_frame; |
544 | slf_frame = c->slf_frame; |
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545 | CORO_THROW = c->except; |
520 | } |
546 | } |
521 | |
547 | |
522 | static void |
548 | static void |
523 | save_perl (pTHX_ Coro__State c) |
549 | save_perl (pTHX_ Coro__State c) |
524 | { |
550 | { |
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551 | c->except = CORO_THROW; |
525 | c->slf_frame = slf_frame; |
552 | c->slf_frame = slf_frame; |
526 | |
553 | |
527 | { |
554 | { |
528 | dSP; |
555 | dSP; |
529 | I32 cxix = cxstack_ix; |
556 | I32 cxix = cxstack_ix; |
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604 | * of perl.c:init_stacks, except that it uses less memory |
631 | * of perl.c:init_stacks, except that it uses less memory |
605 | * on the (sometimes correct) assumption that coroutines do |
632 | * on the (sometimes correct) assumption that coroutines do |
606 | * not usually need a lot of stackspace. |
633 | * not usually need a lot of stackspace. |
607 | */ |
634 | */ |
608 | #if CORO_PREFER_PERL_FUNCTIONS |
635 | #if CORO_PREFER_PERL_FUNCTIONS |
609 | # define coro_init_stacks init_stacks |
636 | # define coro_init_stacks(thx) init_stacks () |
610 | #else |
637 | #else |
611 | static void |
638 | static void |
612 | coro_init_stacks (pTHX) |
639 | coro_init_stacks (pTHX) |
613 | { |
640 | { |
614 | PL_curstackinfo = new_stackinfo(32, 8); |
641 | PL_curstackinfo = new_stackinfo(32, 8); |
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677 | #if !PERL_VERSION_ATLEAST (5,10,0) |
704 | #if !PERL_VERSION_ATLEAST (5,10,0) |
678 | Safefree (PL_retstack); |
705 | Safefree (PL_retstack); |
679 | #endif |
706 | #endif |
680 | } |
707 | } |
681 | |
708 | |
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709 | #define CORO_RSS \ |
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710 | rss += sizeof (SYM (curstackinfo)); \ |
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711 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
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712 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
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713 | rss += SYM (tmps_max) * sizeof (SV *); \ |
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714 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
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715 | rss += SYM (scopestack_max) * sizeof (I32); \ |
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716 | rss += SYM (savestack_max) * sizeof (ANY); |
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717 | |
682 | static size_t |
718 | static size_t |
683 | coro_rss (pTHX_ struct coro *coro) |
719 | coro_rss (pTHX_ struct coro *coro) |
684 | { |
720 | { |
685 | size_t rss = sizeof (*coro); |
721 | size_t rss = sizeof (*coro); |
686 | |
722 | |
687 | if (coro->mainstack) |
723 | if (coro->mainstack) |
688 | { |
724 | { |
689 | perl_slots tmp_slot; |
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690 | perl_slots *slot; |
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691 | |
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692 | if (coro->flags & CF_RUNNING) |
725 | if (coro->flags & CF_RUNNING) |
693 | { |
726 | { |
694 | slot = &tmp_slot; |
727 | #define SYM(sym) PL_ ## sym |
695 | |
728 | CORO_RSS; |
696 | #define VAR(name,type) slot->name = PL_ ## name; |
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697 | # include "state.h" |
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698 | #undef VAR |
729 | #undef SYM |
699 | } |
730 | } |
700 | else |
731 | else |
701 | slot = coro->slot; |
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702 | |
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703 | if (slot) |
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704 | { |
732 | { |
705 | rss += sizeof (slot->curstackinfo); |
733 | #define SYM(sym) coro->slot->sym |
706 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
734 | CORO_RSS; |
707 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
735 | #undef SYM |
708 | rss += slot->tmps_max * sizeof (SV *); |
|
|
709 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
710 | rss += slot->scopestack_max * sizeof (I32); |
|
|
711 | rss += slot->savestack_max * sizeof (ANY); |
|
|
712 | |
|
|
713 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
714 | rss += slot->retstack_max * sizeof (OP *); |
|
|
715 | #endif |
|
|
716 | } |
736 | } |
717 | } |
737 | } |
718 | |
738 | |
719 | return rss; |
739 | return rss; |
720 | } |
740 | } |
… | |
… | |
822 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
842 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
823 | { |
843 | { |
824 | return 0; |
844 | return 0; |
825 | } |
845 | } |
826 | |
846 | |
827 | static void |
847 | static int |
|
|
848 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
849 | { |
|
|
850 | return 1; |
|
|
851 | } |
|
|
852 | |
|
|
853 | static UNOP coro_setup_op; |
|
|
854 | |
|
|
855 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
828 | coro_setup (pTHX_ struct coro *coro) |
856 | coro_setup (pTHX_ struct coro *coro) |
829 | { |
857 | { |
830 | /* |
858 | /* |
831 | * emulate part of the perl startup here. |
859 | * emulate part of the perl startup here. |
832 | */ |
860 | */ |
… | |
… | |
859 | { |
887 | { |
860 | dSP; |
888 | dSP; |
861 | UNOP myop; |
889 | UNOP myop; |
862 | |
890 | |
863 | Zero (&myop, 1, UNOP); |
891 | Zero (&myop, 1, UNOP); |
864 | myop.op_next = Nullop; |
892 | myop.op_next = Nullop; |
|
|
893 | myop.op_type = OP_ENTERSUB; |
865 | myop.op_flags = OPf_WANT_VOID; |
894 | myop.op_flags = OPf_WANT_VOID; |
866 | |
895 | |
867 | PUSHMARK (SP); |
896 | PUSHMARK (SP); |
868 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
897 | PUSHs ((SV *)coro->startcv); |
869 | PUTBACK; |
898 | PUTBACK; |
870 | PL_op = (OP *)&myop; |
899 | PL_op = (OP *)&myop; |
871 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
900 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
872 | SPAGAIN; |
|
|
873 | } |
901 | } |
874 | |
902 | |
875 | /* this newly created coroutine might be run on an existing cctx which most |
903 | /* this newly created coroutine might be run on an existing cctx which most |
876 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
904 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
877 | */ |
905 | */ |
878 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
906 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
879 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
907 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
908 | |
|
|
909 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
910 | coro_setup_op.op_next = PL_op; |
|
|
911 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
912 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
913 | /* no flags etc. required, as an init function won't be called */ |
|
|
914 | |
|
|
915 | PL_op = (OP *)&coro_setup_op; |
|
|
916 | |
|
|
917 | /* copy throw, in case it was set before coro_setup */ |
|
|
918 | CORO_THROW = coro->except; |
880 | } |
919 | } |
881 | |
920 | |
882 | static void |
921 | static void |
883 | coro_destruct (pTHX_ struct coro *coro) |
922 | coro_destruct (pTHX_ struct coro *coro) |
884 | { |
923 | { |
… | |
… | |
908 | |
947 | |
909 | SvREFCNT_dec (PL_diehook); |
948 | SvREFCNT_dec (PL_diehook); |
910 | SvREFCNT_dec (PL_warnhook); |
949 | SvREFCNT_dec (PL_warnhook); |
911 | |
950 | |
912 | SvREFCNT_dec (coro->saved_deffh); |
951 | SvREFCNT_dec (coro->saved_deffh); |
913 | SvREFCNT_dec (coro->throw); |
952 | SvREFCNT_dec (coro->rouse_cb); |
|
|
953 | SvREFCNT_dec (coro->invoke_cb); |
|
|
954 | SvREFCNT_dec (coro->invoke_av); |
914 | |
955 | |
915 | coro_destruct_stacks (aTHX); |
956 | coro_destruct_stacks (aTHX); |
916 | } |
957 | } |
917 | |
958 | |
918 | INLINE void |
959 | INLINE void |
… | |
… | |
990 | { |
1031 | { |
991 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1032 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
992 | |
1033 | |
993 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1034 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
994 | { |
1035 | { |
995 | runops_proc_t old_runops = PL_runops; |
|
|
996 | dSP; |
1036 | dSP; |
997 | GV *gv = CvGV (cx->blk_sub.cv); |
1037 | GV *gv = CvGV (cx->blk_sub.cv); |
998 | SV *fullname = sv_2mortal (newSV (0)); |
1038 | SV *fullname = sv_2mortal (newSV (0)); |
999 | |
1039 | |
1000 | if (isGV (gv)) |
1040 | if (isGV (gv)) |
… | |
… | |
1005 | SAVETMPS; |
1045 | SAVETMPS; |
1006 | EXTEND (SP, 3); |
1046 | EXTEND (SP, 3); |
1007 | PUSHMARK (SP); |
1047 | PUSHMARK (SP); |
1008 | PUSHs (&PL_sv_yes); |
1048 | PUSHs (&PL_sv_yes); |
1009 | PUSHs (fullname); |
1049 | PUSHs (fullname); |
1010 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1050 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1011 | PUTBACK; |
1051 | PUTBACK; |
1012 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1052 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1013 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1053 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1014 | SPAGAIN; |
1054 | SPAGAIN; |
1015 | FREETMPS; |
1055 | FREETMPS; |
… | |
… | |
1047 | |
1087 | |
1048 | TAINT_NOT; |
1088 | TAINT_NOT; |
1049 | return 0; |
1089 | return 0; |
1050 | } |
1090 | } |
1051 | |
1091 | |
|
|
1092 | static struct coro_cctx *cctx_ssl_cctx; |
|
|
1093 | static struct CoroSLF cctx_ssl_frame; |
|
|
1094 | |
1052 | static void |
1095 | static void |
1053 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1096 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1054 | { |
1097 | { |
1055 | ta->prev = (struct coro *)cctx; |
1098 | ta->prev = (struct coro *)cctx_ssl_cctx; |
1056 | ta->next = 0; |
1099 | ta->next = 0; |
1057 | } |
1100 | } |
1058 | |
1101 | |
1059 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1102 | static int |
1060 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1103 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1061 | /* during execution of a perl program */ |
1104 | { |
1062 | /* also initialises PL_top_env */ |
1105 | *frame = cctx_ssl_frame; |
|
|
1106 | |
|
|
1107 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1063 | static void NOINLINE |
1111 | static void NOINLINE |
1064 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1112 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1065 | { |
1113 | { |
1066 | dSP; |
|
|
1067 | UNOP myop; |
|
|
1068 | |
|
|
1069 | PL_top_env = &PL_start_env; |
1114 | PL_top_env = &PL_start_env; |
1070 | |
1115 | |
1071 | if (cctx->flags & CC_TRACE) |
1116 | if (cctx->flags & CC_TRACE) |
1072 | PL_runops = runops_trace; |
1117 | PL_runops = runops_trace; |
1073 | |
1118 | |
1074 | Zero (&myop, 1, UNOP); |
1119 | /* we already must be executing an SLF op, there is no other valid way |
1075 | myop.op_next = PL_op; |
1120 | * that can lead to creation of a new cctx */ |
1076 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1121 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1122 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1077 | |
1123 | |
1078 | PUSHMARK (SP); |
1124 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1079 | EXTEND (SP, 2); |
1125 | cctx_ssl_cctx = cctx; |
1080 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1126 | cctx_ssl_frame = slf_frame; |
1081 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1127 | |
1082 | PUTBACK; |
1128 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1083 | PL_op = (OP *)&myop; |
1129 | slf_frame.check = slf_check_set_stacklevel; |
1084 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1085 | SPAGAIN; |
|
|
1086 | } |
1130 | } |
1087 | |
1131 | |
1088 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1132 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1089 | INLINE void |
1133 | INLINE void |
1090 | transfer_tail (pTHX) |
1134 | transfer_tail (pTHX) |
1091 | { |
1135 | { |
1092 | struct coro *next = (struct coro *)transfer_next; |
|
|
1093 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1094 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1095 | |
|
|
1096 | free_coro_mortal (aTHX); |
1136 | free_coro_mortal (aTHX); |
1097 | |
|
|
1098 | if (expect_false (next->throw)) |
|
|
1099 | { |
|
|
1100 | SV *exception = sv_2mortal (next->throw); |
|
|
1101 | |
|
|
1102 | next->throw = 0; |
|
|
1103 | sv_setsv (ERRSV, exception); |
|
|
1104 | croak (0); |
|
|
1105 | } |
|
|
1106 | } |
1137 | } |
1107 | |
1138 | |
1108 | /* |
1139 | /* |
1109 | * this is a _very_ stripped down perl interpreter ;) |
1140 | * this is a _very_ stripped down perl interpreter ;) |
1110 | */ |
1141 | */ |
… | |
… | |
1125 | |
1156 | |
1126 | /* inject a fake subroutine call to cctx_init */ |
1157 | /* inject a fake subroutine call to cctx_init */ |
1127 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1158 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1128 | |
1159 | |
1129 | /* cctx_run is the alternative tail of transfer() */ |
1160 | /* cctx_run is the alternative tail of transfer() */ |
1130 | /* TODO: throwing an exception here might be deadly, VERIFY */ |
|
|
1131 | transfer_tail (aTHX); |
1161 | transfer_tail (aTHX); |
1132 | |
1162 | |
1133 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1163 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1134 | PL_restartop = PL_op; |
1164 | PL_restartop = PL_op; |
1135 | perl_run (PL_curinterp); |
1165 | perl_run (PL_curinterp); |
|
|
1166 | /* |
|
|
1167 | * Unfortunately, there is no way to get at the return values of the |
|
|
1168 | * coro body here, as perl_run destroys these |
|
|
1169 | */ |
1136 | |
1170 | |
1137 | /* |
1171 | /* |
1138 | * If perl-run returns we assume exit() was being called or the coro |
1172 | * If perl-run returns we assume exit() was being called or the coro |
1139 | * fell off the end, which seems to be the only valid (non-bug) |
1173 | * fell off the end, which seems to be the only valid (non-bug) |
1140 | * reason for perl_run to return. We try to exit by jumping to the |
1174 | * reason for perl_run to return. We try to exit by jumping to the |
… | |
… | |
1291 | /** coroutine switching *****************************************************/ |
1325 | /** coroutine switching *****************************************************/ |
1292 | |
1326 | |
1293 | static void |
1327 | static void |
1294 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1328 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1295 | { |
1329 | { |
|
|
1330 | /* TODO: throwing up here is considered harmful */ |
|
|
1331 | |
1296 | if (expect_true (prev != next)) |
1332 | if (expect_true (prev != next)) |
1297 | { |
1333 | { |
1298 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1334 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1299 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1335 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1300 | |
1336 | |
… | |
… | |
1310 | #endif |
1346 | #endif |
1311 | } |
1347 | } |
1312 | } |
1348 | } |
1313 | |
1349 | |
1314 | /* always use the TRANSFER macro */ |
1350 | /* always use the TRANSFER macro */ |
1315 | static void NOINLINE |
1351 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1316 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1352 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1317 | { |
1353 | { |
1318 | dSTACKLEVEL; |
1354 | dSTACKLEVEL; |
1319 | |
1355 | |
1320 | /* sometimes transfer is only called to set idle_sp */ |
1356 | /* sometimes transfer is only called to set idle_sp */ |
1321 | if (expect_false (!next)) |
1357 | if (expect_false (!next)) |
1322 | { |
1358 | { |
1323 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1359 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1324 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1360 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1325 | } |
1361 | } |
1326 | else if (expect_true (prev != next)) |
1362 | else if (expect_true (prev != next)) |
1327 | { |
1363 | { |
1328 | coro_cctx *prev__cctx; |
1364 | coro_cctx *prev__cctx; |
… | |
… | |
1353 | |
1389 | |
1354 | prev__cctx = prev->cctx; |
1390 | prev__cctx = prev->cctx; |
1355 | |
1391 | |
1356 | /* possibly untie and reuse the cctx */ |
1392 | /* possibly untie and reuse the cctx */ |
1357 | if (expect_true ( |
1393 | if (expect_true ( |
1358 | prev__cctx->idle_sp == (void *)stacklevel |
1394 | prev__cctx->idle_sp == STACKLEVEL |
1359 | && !(prev__cctx->flags & CC_TRACE) |
1395 | && !(prev__cctx->flags & CC_TRACE) |
1360 | && !force_cctx |
1396 | && !force_cctx |
1361 | )) |
1397 | )) |
1362 | { |
1398 | { |
1363 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1399 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
… | |
… | |
1377 | ++next->usecount; |
1413 | ++next->usecount; |
1378 | |
1414 | |
1379 | if (expect_true (!next->cctx)) |
1415 | if (expect_true (!next->cctx)) |
1380 | next->cctx = cctx_get (aTHX); |
1416 | next->cctx = cctx_get (aTHX); |
1381 | |
1417 | |
1382 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
|
|
1383 | transfer_next = next; |
|
|
1384 | |
|
|
1385 | if (expect_false (prev__cctx != next->cctx)) |
1418 | if (expect_false (prev__cctx != next->cctx)) |
1386 | { |
1419 | { |
1387 | prev__cctx->top_env = PL_top_env; |
1420 | prev__cctx->top_env = PL_top_env; |
1388 | PL_top_env = next->cctx->top_env; |
1421 | PL_top_env = next->cctx->top_env; |
1389 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1422 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
… | |
… | |
1433 | |
1466 | |
1434 | coro->slot = 0; |
1467 | coro->slot = 0; |
1435 | } |
1468 | } |
1436 | |
1469 | |
1437 | cctx_destroy (coro->cctx); |
1470 | cctx_destroy (coro->cctx); |
|
|
1471 | SvREFCNT_dec (coro->startcv); |
1438 | SvREFCNT_dec (coro->args); |
1472 | SvREFCNT_dec (coro->args); |
|
|
1473 | SvREFCNT_dec (CORO_THROW); |
1439 | |
1474 | |
1440 | if (coro->next) coro->next->prev = coro->prev; |
1475 | if (coro->next) coro->next->prev = coro->prev; |
1441 | if (coro->prev) coro->prev->next = coro->next; |
1476 | if (coro->prev) coro->prev->next = coro->next; |
1442 | if (coro == coro_first) coro_first = coro->next; |
1477 | if (coro == coro_first) coro_first = coro->next; |
1443 | |
1478 | |
… | |
… | |
1497 | |
1532 | |
1498 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1533 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1499 | TRANSFER (ta, 1); |
1534 | TRANSFER (ta, 1); |
1500 | } |
1535 | } |
1501 | |
1536 | |
|
|
1537 | /*****************************************************************************/ |
|
|
1538 | /* gensub: simple closure generation utility */ |
|
|
1539 | |
|
|
1540 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1541 | |
|
|
1542 | /* create a closure from XS, returns a code reference */ |
|
|
1543 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1544 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1545 | static SV * |
|
|
1546 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1547 | { |
|
|
1548 | CV *cv = (CV *)newSV (0); |
|
|
1549 | |
|
|
1550 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1551 | |
|
|
1552 | CvANON_on (cv); |
|
|
1553 | CvISXSUB_on (cv); |
|
|
1554 | CvXSUB (cv) = xsub; |
|
|
1555 | GENSUB_ARG = arg; |
|
|
1556 | |
|
|
1557 | return newRV_noinc ((SV *)cv); |
|
|
1558 | } |
|
|
1559 | |
1502 | /** Coro ********************************************************************/ |
1560 | /** Coro ********************************************************************/ |
1503 | |
1561 | |
1504 | INLINE void |
1562 | INLINE void |
1505 | coro_enq (pTHX_ struct coro *coro) |
1563 | coro_enq (pTHX_ struct coro *coro) |
1506 | { |
1564 | { |
… | |
… | |
1549 | ENTER; |
1607 | ENTER; |
1550 | SAVETMPS; |
1608 | SAVETMPS; |
1551 | |
1609 | |
1552 | PUSHMARK (SP); |
1610 | PUSHMARK (SP); |
1553 | PUTBACK; |
1611 | PUTBACK; |
1554 | call_sv (sv_hook, G_DISCARD); |
1612 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1555 | SPAGAIN; |
|
|
1556 | |
1613 | |
1557 | FREETMPS; |
1614 | FREETMPS; |
1558 | LEAVE; |
1615 | LEAVE; |
1559 | } |
1616 | } |
1560 | |
1617 | |
… | |
… | |
1568 | api_is_ready (pTHX_ SV *coro_sv) |
1625 | api_is_ready (pTHX_ SV *coro_sv) |
1569 | { |
1626 | { |
1570 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1627 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1571 | } |
1628 | } |
1572 | |
1629 | |
|
|
1630 | /* expects to own a reference to next->hv */ |
1573 | INLINE void |
1631 | INLINE void |
|
|
1632 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1633 | { |
|
|
1634 | SV *prev_sv = SvRV (coro_current); |
|
|
1635 | |
|
|
1636 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1637 | ta->next = next; |
|
|
1638 | |
|
|
1639 | TRANSFER_CHECK (*ta); |
|
|
1640 | |
|
|
1641 | SvRV_set (coro_current, (SV *)next->hv); |
|
|
1642 | |
|
|
1643 | free_coro_mortal (aTHX); |
|
|
1644 | coro_mortal = prev_sv; |
|
|
1645 | } |
|
|
1646 | |
|
|
1647 | static void |
1574 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1648 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1575 | { |
1649 | { |
1576 | SV *prev_sv, *next_sv; |
|
|
1577 | |
|
|
1578 | for (;;) |
1650 | for (;;) |
1579 | { |
1651 | { |
1580 | next_sv = coro_deq (aTHX); |
1652 | SV *next_sv = coro_deq (aTHX); |
1581 | |
1653 | |
1582 | /* nothing to schedule: call the idle handler */ |
|
|
1583 | if (expect_false (!next_sv)) |
1654 | if (expect_true (next_sv)) |
1584 | { |
1655 | { |
|
|
1656 | struct coro *next = SvSTATE_hv (next_sv); |
|
|
1657 | |
|
|
1658 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1659 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1660 | SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ |
|
|
1661 | else |
|
|
1662 | { |
|
|
1663 | next->flags &= ~CF_READY; |
|
|
1664 | --coro_nready; |
|
|
1665 | |
|
|
1666 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1667 | break; |
|
|
1668 | } |
|
|
1669 | } |
|
|
1670 | else |
|
|
1671 | { |
|
|
1672 | /* nothing to schedule: call the idle handler */ |
1585 | dSP; |
1673 | dSP; |
1586 | |
1674 | |
1587 | ENTER; |
1675 | ENTER; |
1588 | SAVETMPS; |
1676 | SAVETMPS; |
1589 | |
1677 | |
1590 | PUSHMARK (SP); |
1678 | PUSHMARK (SP); |
1591 | PUTBACK; |
1679 | PUTBACK; |
1592 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1680 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1593 | SPAGAIN; |
|
|
1594 | |
1681 | |
1595 | FREETMPS; |
1682 | FREETMPS; |
1596 | LEAVE; |
1683 | LEAVE; |
1597 | continue; |
|
|
1598 | } |
1684 | } |
1599 | |
|
|
1600 | ta->next = SvSTATE_hv (next_sv); |
|
|
1601 | |
|
|
1602 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1603 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1604 | { |
|
|
1605 | SvREFCNT_dec (next_sv); |
|
|
1606 | /* coro_nready has already been taken care of by destroy */ |
|
|
1607 | continue; |
|
|
1608 | } |
|
|
1609 | |
|
|
1610 | --coro_nready; |
|
|
1611 | break; |
|
|
1612 | } |
1685 | } |
1613 | |
|
|
1614 | /* free this only after the transfer */ |
|
|
1615 | prev_sv = SvRV (coro_current); |
|
|
1616 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1617 | TRANSFER_CHECK (*ta); |
|
|
1618 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
|
|
1619 | ta->next->flags &= ~CF_READY; |
|
|
1620 | SvRV_set (coro_current, next_sv); |
|
|
1621 | |
|
|
1622 | free_coro_mortal (aTHX); |
|
|
1623 | coro_mortal = prev_sv; |
|
|
1624 | } |
1686 | } |
1625 | |
1687 | |
1626 | INLINE void |
1688 | INLINE void |
1627 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1689 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1628 | { |
1690 | { |
… | |
… | |
1649 | { |
1711 | { |
1650 | struct coro_transfer_args ta; |
1712 | struct coro_transfer_args ta; |
1651 | |
1713 | |
1652 | prepare_schedule (aTHX_ &ta); |
1714 | prepare_schedule (aTHX_ &ta); |
1653 | TRANSFER (ta, 1); |
1715 | TRANSFER (ta, 1); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | static void |
|
|
1719 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1720 | { |
|
|
1721 | struct coro_transfer_args ta; |
|
|
1722 | struct coro *next = SvSTATE (coro_sv); |
|
|
1723 | |
|
|
1724 | SvREFCNT_inc_NN (coro_sv); |
|
|
1725 | prepare_schedule_to (aTHX_ &ta, next); |
1654 | } |
1726 | } |
1655 | |
1727 | |
1656 | static int |
1728 | static int |
1657 | api_cede (pTHX) |
1729 | api_cede (pTHX) |
1658 | { |
1730 | { |
… | |
… | |
1705 | if (coro->flags & CF_RUNNING) |
1777 | if (coro->flags & CF_RUNNING) |
1706 | PL_runops = RUNOPS_DEFAULT; |
1778 | PL_runops = RUNOPS_DEFAULT; |
1707 | else |
1779 | else |
1708 | coro->slot->runops = RUNOPS_DEFAULT; |
1780 | coro->slot->runops = RUNOPS_DEFAULT; |
1709 | } |
1781 | } |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | static void |
|
|
1785 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1786 | { |
|
|
1787 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1788 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1789 | |
|
|
1790 | if (on_destroyp) |
|
|
1791 | { |
|
|
1792 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1793 | |
|
|
1794 | while (AvFILLp (on_destroy) >= 0) |
|
|
1795 | { |
|
|
1796 | dSP; /* don't disturb outer sp */ |
|
|
1797 | SV *cb = av_pop (on_destroy); |
|
|
1798 | |
|
|
1799 | PUSHMARK (SP); |
|
|
1800 | |
|
|
1801 | if (statusp) |
|
|
1802 | { |
|
|
1803 | int i; |
|
|
1804 | AV *status = (AV *)SvRV (*statusp); |
|
|
1805 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1806 | |
|
|
1807 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1808 | PUSHs (AvARRAY (status)[i]); |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | PUTBACK; |
|
|
1812 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1813 | } |
|
|
1814 | } |
|
|
1815 | } |
|
|
1816 | |
|
|
1817 | static void |
|
|
1818 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1819 | { |
|
|
1820 | int i; |
|
|
1821 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1822 | AV *av = newAV (); |
|
|
1823 | |
|
|
1824 | av_extend (av, items - 1); |
|
|
1825 | for (i = 0; i < items; ++i) |
|
|
1826 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1827 | |
|
|
1828 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1829 | |
|
|
1830 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1831 | api_ready (aTHX_ sv_manager); |
|
|
1832 | |
|
|
1833 | frame->prepare = prepare_schedule; |
|
|
1834 | frame->check = slf_check_repeat; |
|
|
1835 | } |
|
|
1836 | |
|
|
1837 | /*****************************************************************************/ |
|
|
1838 | /* async pool handler */ |
|
|
1839 | |
|
|
1840 | static int |
|
|
1841 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
1842 | { |
|
|
1843 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1844 | struct coro *coro = (struct coro *)frame->data; |
|
|
1845 | |
|
|
1846 | if (!coro->invoke_cb) |
|
|
1847 | return 1; /* loop till we have invoke */ |
|
|
1848 | else |
|
|
1849 | { |
|
|
1850 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1851 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1852 | |
|
|
1853 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1854 | |
|
|
1855 | { |
|
|
1856 | dSP; |
|
|
1857 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1858 | PUTBACK; |
|
|
1859 | } |
|
|
1860 | |
|
|
1861 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1862 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1863 | coro->invoke_av = 0; |
|
|
1864 | |
|
|
1865 | return 0; |
|
|
1866 | } |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | static void |
|
|
1870 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1871 | { |
|
|
1872 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1873 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1874 | |
|
|
1875 | if (expect_true (coro->saved_deffh)) |
|
|
1876 | { |
|
|
1877 | /* subsequent iteration */ |
|
|
1878 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1879 | coro->saved_deffh = 0; |
|
|
1880 | |
|
|
1881 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1882 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1883 | { |
|
|
1884 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1885 | coro->invoke_av = newAV (); |
|
|
1886 | |
|
|
1887 | frame->prepare = prepare_nop; |
|
|
1888 | } |
|
|
1889 | else |
|
|
1890 | { |
|
|
1891 | av_clear (GvAV (PL_defgv)); |
|
|
1892 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1893 | |
|
|
1894 | coro->prio = 0; |
|
|
1895 | |
|
|
1896 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1897 | api_trace (aTHX_ coro_current, 0); |
|
|
1898 | |
|
|
1899 | frame->prepare = prepare_schedule; |
|
|
1900 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1901 | } |
|
|
1902 | } |
|
|
1903 | else |
|
|
1904 | { |
|
|
1905 | /* first iteration, simply fall through */ |
|
|
1906 | frame->prepare = prepare_nop; |
|
|
1907 | } |
|
|
1908 | |
|
|
1909 | frame->check = slf_check_pool_handler; |
|
|
1910 | frame->data = (void *)coro; |
|
|
1911 | } |
|
|
1912 | |
|
|
1913 | /*****************************************************************************/ |
|
|
1914 | /* rouse callback */ |
|
|
1915 | |
|
|
1916 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1917 | |
|
|
1918 | static void |
|
|
1919 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1920 | { |
|
|
1921 | dXSARGS; |
|
|
1922 | SV *data = (SV *)GENSUB_ARG; |
|
|
1923 | |
|
|
1924 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1925 | { |
|
|
1926 | /* first call, set args */ |
|
|
1927 | AV *av = newAV (); |
|
|
1928 | SV *coro = SvRV (data); |
|
|
1929 | |
|
|
1930 | SvRV_set (data, (SV *)av); |
|
|
1931 | api_ready (aTHX_ coro); |
|
|
1932 | SvREFCNT_dec (coro); |
|
|
1933 | |
|
|
1934 | /* better take a full copy of the arguments */ |
|
|
1935 | while (items--) |
|
|
1936 | av_store (av, items, newSVsv (ST (items))); |
|
|
1937 | } |
|
|
1938 | |
|
|
1939 | XSRETURN_EMPTY; |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | static int |
|
|
1943 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1944 | { |
|
|
1945 | SV *data = (SV *)frame->data; |
|
|
1946 | |
|
|
1947 | if (CORO_THROW) |
|
|
1948 | return 0; |
|
|
1949 | |
|
|
1950 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1951 | return 1; |
|
|
1952 | |
|
|
1953 | /* now push all results on the stack */ |
|
|
1954 | { |
|
|
1955 | dSP; |
|
|
1956 | AV *av = (AV *)SvRV (data); |
|
|
1957 | int i; |
|
|
1958 | |
|
|
1959 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1960 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1961 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1962 | |
|
|
1963 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1964 | AvFILLp (av) = -1; |
|
|
1965 | av_undef (av); |
|
|
1966 | |
|
|
1967 | PUTBACK; |
|
|
1968 | } |
|
|
1969 | |
|
|
1970 | return 0; |
|
|
1971 | } |
|
|
1972 | |
|
|
1973 | static void |
|
|
1974 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1975 | { |
|
|
1976 | SV *cb; |
|
|
1977 | |
|
|
1978 | if (items) |
|
|
1979 | cb = arg [0]; |
|
|
1980 | else |
|
|
1981 | { |
|
|
1982 | struct coro *coro = SvSTATE_current; |
|
|
1983 | |
|
|
1984 | if (!coro->rouse_cb) |
|
|
1985 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1986 | |
|
|
1987 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1988 | coro->rouse_cb = 0; |
|
|
1989 | } |
|
|
1990 | |
|
|
1991 | if (!SvROK (cb) |
|
|
1992 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1993 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1994 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1995 | |
|
|
1996 | { |
|
|
1997 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1998 | SV *data = (SV *)GENSUB_ARG; |
|
|
1999 | |
|
|
2000 | frame->data = (void *)data; |
|
|
2001 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2002 | frame->check = slf_check_rouse_wait; |
|
|
2003 | } |
|
|
2004 | } |
|
|
2005 | |
|
|
2006 | static SV * |
|
|
2007 | coro_new_rouse_cb (pTHX) |
|
|
2008 | { |
|
|
2009 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2010 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2011 | SV *data = newRV_inc ((SV *)hv); |
|
|
2012 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2013 | |
|
|
2014 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2015 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2016 | |
|
|
2017 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2018 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2019 | |
|
|
2020 | return cb; |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | /*****************************************************************************/ |
|
|
2024 | /* schedule-like-function opcode (SLF) */ |
|
|
2025 | |
|
|
2026 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2027 | static const CV *slf_cv; |
|
|
2028 | static SV **slf_argv; |
|
|
2029 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2030 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2031 | |
|
|
2032 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2033 | /* recreate the stack frame as perl will on following calls */ |
|
|
2034 | /* since entersub cleared the stack */ |
|
|
2035 | static OP * |
|
|
2036 | pp_restore (pTHX) |
|
|
2037 | { |
|
|
2038 | int i; |
|
|
2039 | SV **SP = PL_stack_base + slf_ax; |
|
|
2040 | |
|
|
2041 | PUSHMARK (SP); |
|
|
2042 | |
|
|
2043 | EXTEND (SP, slf_argc + 1); |
|
|
2044 | |
|
|
2045 | for (i = 0; i < slf_argc; ++i) |
|
|
2046 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2047 | |
|
|
2048 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2049 | |
|
|
2050 | RETURNOP (slf_restore.op_first); |
|
|
2051 | } |
|
|
2052 | |
|
|
2053 | static void |
|
|
2054 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2055 | { |
|
|
2056 | SV **arg = (SV **)slf_frame.data; |
|
|
2057 | |
|
|
2058 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2059 | } |
|
|
2060 | |
|
|
2061 | static void |
|
|
2062 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2063 | { |
|
|
2064 | if (items != 2) |
|
|
2065 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2066 | |
|
|
2067 | frame->prepare = slf_prepare_transfer; |
|
|
2068 | frame->check = slf_check_nop; |
|
|
2069 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2070 | } |
|
|
2071 | |
|
|
2072 | static void |
|
|
2073 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2074 | { |
|
|
2075 | frame->prepare = prepare_schedule; |
|
|
2076 | frame->check = slf_check_nop; |
|
|
2077 | } |
|
|
2078 | |
|
|
2079 | static void |
|
|
2080 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2081 | { |
|
|
2082 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2083 | |
|
|
2084 | SvREFCNT_inc_NN (next->hv); |
|
|
2085 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | static void |
|
|
2089 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2090 | { |
|
|
2091 | if (!items) |
|
|
2092 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2093 | |
|
|
2094 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2095 | frame->prepare = slf_prepare_schedule_to; |
|
|
2096 | frame->check = slf_check_nop; |
|
|
2097 | } |
|
|
2098 | |
|
|
2099 | static void |
|
|
2100 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2101 | { |
|
|
2102 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2103 | |
|
|
2104 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | static void |
|
|
2108 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2109 | { |
|
|
2110 | frame->prepare = prepare_cede; |
|
|
2111 | frame->check = slf_check_nop; |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | static void |
|
|
2115 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2116 | { |
|
|
2117 | frame->prepare = prepare_cede_notself; |
|
|
2118 | frame->check = slf_check_nop; |
|
|
2119 | } |
|
|
2120 | |
|
|
2121 | /* |
|
|
2122 | * these not obviously related functions are all rolled into one |
|
|
2123 | * function to increase chances that they all will call transfer with the same |
|
|
2124 | * stack offset |
|
|
2125 | * SLF stands for "schedule-like-function". |
|
|
2126 | */ |
|
|
2127 | static OP * |
|
|
2128 | pp_slf (pTHX) |
|
|
2129 | { |
|
|
2130 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2131 | |
|
|
2132 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2133 | /* the latter happens when a new coro has been started */ |
|
|
2134 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2135 | if (expect_true (!slf_frame.prepare)) |
|
|
2136 | { |
|
|
2137 | /* first iteration */ |
|
|
2138 | dSP; |
|
|
2139 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2140 | int items = SP - arg; /* args without function object */ |
|
|
2141 | SV *gv = *sp; |
|
|
2142 | |
|
|
2143 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2144 | /* for us, divert to the real entersub */ |
|
|
2145 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2146 | || !GvCV (gv) |
|
|
2147 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2148 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2149 | |
|
|
2150 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2151 | { |
|
|
2152 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2153 | AV *av = GvAV (PL_defgv); |
|
|
2154 | arg = AvARRAY (av); |
|
|
2155 | items = AvFILLp (av) + 1; |
|
|
2156 | } |
|
|
2157 | |
|
|
2158 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2159 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2160 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2161 | |
|
|
2162 | /* pop args */ |
|
|
2163 | SP = PL_stack_base + POPMARK; |
|
|
2164 | |
|
|
2165 | PUTBACK; |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | /* now that we have a slf_frame, interpret it! */ |
|
|
2169 | /* we use a callback system not to make the code needlessly */ |
|
|
2170 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2171 | |
|
|
2172 | do |
|
|
2173 | { |
|
|
2174 | struct coro_transfer_args ta; |
|
|
2175 | |
|
|
2176 | slf_frame.prepare (aTHX_ &ta); |
|
|
2177 | TRANSFER (ta, 0); |
|
|
2178 | |
|
|
2179 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2180 | } |
|
|
2181 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2182 | |
|
|
2183 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2184 | |
|
|
2185 | /* exception handling */ |
|
|
2186 | if (expect_false (CORO_THROW)) |
|
|
2187 | { |
|
|
2188 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2189 | |
|
|
2190 | CORO_THROW = 0; |
|
|
2191 | sv_setsv (ERRSV, exception); |
|
|
2192 | croak (0); |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | /* return value handling - mostly like entersub */ |
|
|
2196 | /* make sure we put something on the stack in scalar context */ |
|
|
2197 | if (GIMME_V == G_SCALAR) |
|
|
2198 | { |
|
|
2199 | dSP; |
|
|
2200 | SV **bot = PL_stack_base + checkmark; |
|
|
2201 | |
|
|
2202 | if (sp == bot) /* too few, push undef */ |
|
|
2203 | bot [1] = &PL_sv_undef; |
|
|
2204 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2205 | bot [1] = *sp; |
|
|
2206 | |
|
|
2207 | SP = bot + 1; |
|
|
2208 | |
|
|
2209 | PUTBACK; |
|
|
2210 | } |
|
|
2211 | |
|
|
2212 | return NORMAL; |
|
|
2213 | } |
|
|
2214 | |
|
|
2215 | static void |
|
|
2216 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2217 | { |
|
|
2218 | int i; |
|
|
2219 | SV **arg = PL_stack_base + ax; |
|
|
2220 | int items = PL_stack_sp - arg + 1; |
|
|
2221 | |
|
|
2222 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2223 | |
|
|
2224 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2225 | && PL_op->op_ppaddr != pp_slf) |
|
|
2226 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2227 | |
|
|
2228 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2229 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2230 | slf_cv = cv; |
|
|
2231 | |
|
|
2232 | /* we patch the op, and then re-run the whole call */ |
|
|
2233 | /* we have to put the same argument on the stack for this to work */ |
|
|
2234 | /* and this will be done by pp_restore */ |
|
|
2235 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2236 | slf_restore.op_type = OP_CUSTOM; |
|
|
2237 | slf_restore.op_ppaddr = pp_restore; |
|
|
2238 | slf_restore.op_first = PL_op; |
|
|
2239 | |
|
|
2240 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2241 | |
|
|
2242 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2243 | { |
|
|
2244 | if (items > slf_arga) |
|
|
2245 | { |
|
|
2246 | slf_arga = items; |
|
|
2247 | free (slf_argv); |
|
|
2248 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2249 | } |
|
|
2250 | |
|
|
2251 | slf_argc = items; |
|
|
2252 | |
|
|
2253 | for (i = 0; i < items; ++i) |
|
|
2254 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2255 | } |
|
|
2256 | else |
|
|
2257 | slf_argc = 0; |
|
|
2258 | |
|
|
2259 | PL_op->op_ppaddr = pp_slf; |
|
|
2260 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2261 | |
|
|
2262 | PL_op = (OP *)&slf_restore; |
1710 | } |
2263 | } |
1711 | |
2264 | |
1712 | /*****************************************************************************/ |
2265 | /*****************************************************************************/ |
1713 | /* PerlIO::cede */ |
2266 | /* PerlIO::cede */ |
1714 | |
2267 | |
… | |
… | |
1783 | PerlIOBuf_get_cnt, |
2336 | PerlIOBuf_get_cnt, |
1784 | PerlIOBuf_set_ptrcnt, |
2337 | PerlIOBuf_set_ptrcnt, |
1785 | }; |
2338 | }; |
1786 | |
2339 | |
1787 | /*****************************************************************************/ |
2340 | /*****************************************************************************/ |
|
|
2341 | /* Coro::Semaphore & Coro::Signal */ |
1788 | |
2342 | |
1789 | static const CV *slf_cv; /* for quick consistency check */ |
|
|
1790 | |
|
|
1791 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1792 | static SV *slf_arg0; |
|
|
1793 | static SV *slf_arg1; |
|
|
1794 | static SV *slf_arg2; |
|
|
1795 | |
|
|
1796 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1797 | /* recreate the stack frame as perl will on following calls */ |
|
|
1798 | /* since entersub cleared the stack */ |
|
|
1799 | static OP * |
2343 | static SV * |
1800 | pp_restore (pTHX) |
2344 | coro_waitarray_new (pTHX_ int count) |
1801 | { |
2345 | { |
1802 | dSP; |
2346 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2347 | AV *av = newAV (); |
|
|
2348 | SV **ary; |
1803 | |
2349 | |
1804 | PUSHMARK (SP); |
2350 | /* unfortunately, building manually saves memory */ |
|
|
2351 | Newx (ary, 2, SV *); |
|
|
2352 | AvALLOC (av) = ary; |
|
|
2353 | /*AvARRAY (av) = ary;*/ |
|
|
2354 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2355 | AvMAX (av) = 1; |
|
|
2356 | AvFILLp (av) = 0; |
|
|
2357 | ary [0] = newSViv (count); |
1805 | |
2358 | |
1806 | EXTEND (SP, 3); |
2359 | return newRV_noinc ((SV *)av); |
1807 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1808 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1809 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1810 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1811 | |
|
|
1812 | RETURNOP (slf_restore.op_first); |
|
|
1813 | } |
2360 | } |
1814 | |
2361 | |
1815 | static void |
2362 | /* semaphore */ |
1816 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1817 | { |
|
|
1818 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1819 | } |
|
|
1820 | |
|
|
1821 | static void |
|
|
1822 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1823 | { |
|
|
1824 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1825 | |
|
|
1826 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1827 | frame->check = slf_check_nop; |
|
|
1828 | frame->data = (void *)SvIV (arg [0]); |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | static void |
|
|
1832 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1833 | { |
|
|
1834 | SV **arg = (SV **)slf_frame.data; |
|
|
1835 | |
|
|
1836 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1837 | } |
|
|
1838 | |
|
|
1839 | static void |
|
|
1840 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1841 | { |
|
|
1842 | if (items != 2) |
|
|
1843 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1844 | |
|
|
1845 | frame->prepare = slf_prepare_transfer; |
|
|
1846 | frame->check = slf_check_nop; |
|
|
1847 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_schedule; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | static void |
|
|
1865 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1866 | { |
|
|
1867 | frame->prepare = prepare_cede_notself; |
|
|
1868 | frame->check = slf_check_nop; |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1872 | #define CVf_SLF 0x4000 |
|
|
1873 | |
|
|
1874 | /* |
|
|
1875 | * these not obviously related functions are all rolled into one |
|
|
1876 | * function to increase chances that they all will call transfer with the same |
|
|
1877 | * stack offset |
|
|
1878 | * SLF stands for "schedule-like-function". |
|
|
1879 | */ |
|
|
1880 | static OP * |
|
|
1881 | pp_slf (pTHX) |
|
|
1882 | { |
|
|
1883 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1884 | |
|
|
1885 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1886 | /* the latter happens when a new coro has been started */ |
|
|
1887 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1888 | if (expect_true (!slf_frame.prepare)) |
|
|
1889 | { |
|
|
1890 | /* first iteration */ |
|
|
1891 | dSP; |
|
|
1892 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1893 | int items = SP - arg; /* args without function object */ |
|
|
1894 | SV *gv = *sp; |
|
|
1895 | |
|
|
1896 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1897 | /* for us, divert to the real entersub */ |
|
|
1898 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1899 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1900 | |
|
|
1901 | /* pop args */ |
|
|
1902 | SP = PL_stack_base + POPMARK; |
|
|
1903 | |
|
|
1904 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1905 | { |
|
|
1906 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1907 | AV *av = GvAV (PL_defgv); |
|
|
1908 | arg = AvARRAY (av); |
|
|
1909 | items = AvFILLp (av) + 1; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | PUTBACK; |
|
|
1913 | |
|
|
1914 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1915 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1916 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1917 | } |
|
|
1918 | |
|
|
1919 | /* now that we have a slf_frame, interpret it! */ |
|
|
1920 | /* we use a callback system not to make the code needlessly */ |
|
|
1921 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1922 | |
|
|
1923 | do |
|
|
1924 | { |
|
|
1925 | struct coro_transfer_args ta; |
|
|
1926 | |
|
|
1927 | slf_frame.prepare (aTHX_ &ta); |
|
|
1928 | TRANSFER (ta, 0); |
|
|
1929 | |
|
|
1930 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1931 | } |
|
|
1932 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1933 | |
|
|
1934 | { |
|
|
1935 | dSP; |
|
|
1936 | SV **bot = PL_stack_base + checkmark; |
|
|
1937 | int gimme = GIMME_V; |
|
|
1938 | |
|
|
1939 | slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */ |
|
|
1940 | |
|
|
1941 | /* make sure we put something on the stack in scalar context */ |
|
|
1942 | if (gimme == G_SCALAR) |
|
|
1943 | { |
|
|
1944 | if (sp == bot) |
|
|
1945 | XPUSHs (&PL_sv_undef); |
|
|
1946 | |
|
|
1947 | SP = bot + 1; |
|
|
1948 | } |
|
|
1949 | |
|
|
1950 | PUTBACK; |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | return NORMAL; |
|
|
1954 | } |
|
|
1955 | |
|
|
1956 | static void |
|
|
1957 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
|
|
1958 | { |
|
|
1959 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1960 | |
|
|
1961 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1962 | && PL_op->op_ppaddr != pp_slf) |
|
|
1963 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1964 | |
|
|
1965 | if (items > 3) |
|
|
1966 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1967 | |
|
|
1968 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1969 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1970 | slf_cv = cv; |
|
|
1971 | |
|
|
1972 | /* we patch the op, and then re-run the whole call */ |
|
|
1973 | /* we have to put the same argument on the stack for this to work */ |
|
|
1974 | /* and this will be done by pp_restore */ |
|
|
1975 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1976 | slf_restore.op_type = OP_CUSTOM; |
|
|
1977 | slf_restore.op_ppaddr = pp_restore; |
|
|
1978 | slf_restore.op_first = PL_op; |
|
|
1979 | |
|
|
1980 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1981 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1982 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1983 | |
|
|
1984 | PL_op->op_ppaddr = pp_slf; |
|
|
1985 | |
|
|
1986 | PL_op = (OP *)&slf_restore; |
|
|
1987 | } |
|
|
1988 | |
|
|
1989 | /*****************************************************************************/ |
|
|
1990 | |
2363 | |
1991 | static void |
2364 | static void |
1992 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2365 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
1993 | { |
2366 | { |
1994 | SV *count_sv = AvARRAY (av)[0]; |
2367 | SV *count_sv = AvARRAY (av)[0]; |
… | |
… | |
2006 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2379 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2007 | AvARRAY (av)[1] = count_sv; |
2380 | AvARRAY (av)[1] = count_sv; |
2008 | cb = av_shift (av); |
2381 | cb = av_shift (av); |
2009 | |
2382 | |
2010 | if (SvOBJECT (cb)) |
2383 | if (SvOBJECT (cb)) |
|
|
2384 | { |
2011 | api_ready (aTHX_ cb); |
2385 | api_ready (aTHX_ cb); |
2012 | else |
2386 | --count; |
2013 | croak ("callbacks not yet supported"); |
2387 | } |
|
|
2388 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2389 | { |
|
|
2390 | dSP; |
|
|
2391 | PUSHMARK (SP); |
|
|
2392 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2393 | PUTBACK; |
|
|
2394 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2395 | } |
2014 | |
2396 | |
2015 | SvREFCNT_dec (cb); |
2397 | SvREFCNT_dec (cb); |
2016 | |
|
|
2017 | --count; |
|
|
2018 | } |
2398 | } |
2019 | } |
2399 | } |
2020 | |
2400 | |
2021 | static void |
2401 | static void |
2022 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2402 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
… | |
… | |
2024 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2404 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2025 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2405 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2026 | } |
2406 | } |
2027 | |
2407 | |
2028 | static int |
2408 | static int |
2029 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2409 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2030 | { |
2410 | { |
2031 | AV *av = (AV *)frame->data; |
2411 | AV *av = (AV *)frame->data; |
2032 | SV *count_sv = AvARRAY (av)[0]; |
2412 | SV *count_sv = AvARRAY (av)[0]; |
2033 | |
2413 | |
|
|
2414 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2415 | if (CORO_THROW) |
|
|
2416 | return 0; |
2034 | if (SvIVX (count_sv) > 0) |
2417 | else if (SvIVX (count_sv) > 0) |
2035 | { |
2418 | { |
2036 | SvSTATE_current->on_destroy = 0; |
2419 | SvSTATE_current->on_destroy = 0; |
|
|
2420 | |
|
|
2421 | if (acquire) |
2037 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2422 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2423 | else |
|
|
2424 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2425 | |
2038 | return 0; |
2426 | return 0; |
2039 | } |
2427 | } |
2040 | else |
2428 | else |
2041 | { |
2429 | { |
2042 | int i; |
2430 | int i; |
… | |
… | |
2051 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2439 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2052 | return 1; |
2440 | return 1; |
2053 | } |
2441 | } |
2054 | } |
2442 | } |
2055 | |
2443 | |
2056 | static void |
2444 | static int |
|
|
2445 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2446 | { |
|
|
2447 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2448 | } |
|
|
2449 | |
|
|
2450 | static int |
|
|
2451 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2452 | { |
|
|
2453 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2454 | } |
|
|
2455 | |
|
|
2456 | static void |
2057 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2457 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2058 | { |
2458 | { |
2059 | AV *av = (AV *)SvRV (arg [0]); |
2459 | AV *av = (AV *)SvRV (arg [0]); |
2060 | |
2460 | |
2061 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2461 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2062 | { |
2462 | { |
2063 | frame->data = (void *)av; |
2463 | frame->data = (void *)av; |
2064 | frame->prepare = prepare_nop; |
2464 | frame->prepare = prepare_nop; |
2065 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2066 | } |
2465 | } |
2067 | else |
2466 | else |
2068 | { |
2467 | { |
2069 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2468 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2070 | |
2469 | |
2071 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2470 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2072 | frame->prepare = prepare_schedule; |
2471 | frame->prepare = prepare_schedule; |
2073 | |
2472 | |
2074 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2473 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2075 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2474 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2076 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2077 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2475 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2078 | } |
2476 | } |
|
|
2477 | } |
2079 | |
2478 | |
|
|
2479 | static void |
|
|
2480 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2481 | { |
|
|
2482 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
2080 | frame->check = slf_check_semaphore_down; |
2483 | frame->check = slf_check_semaphore_down; |
|
|
2484 | } |
2081 | |
2485 | |
|
|
2486 | static void |
|
|
2487 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2488 | { |
|
|
2489 | if (items >= 2) |
|
|
2490 | { |
|
|
2491 | /* callback form */ |
|
|
2492 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2493 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2494 | |
|
|
2495 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2496 | |
|
|
2497 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2498 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2499 | |
|
|
2500 | frame->prepare = prepare_nop; |
|
|
2501 | frame->check = slf_check_nop; |
|
|
2502 | } |
|
|
2503 | else |
|
|
2504 | { |
|
|
2505 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2506 | frame->check = slf_check_semaphore_wait; |
|
|
2507 | } |
|
|
2508 | } |
|
|
2509 | |
|
|
2510 | /* signal */ |
|
|
2511 | |
|
|
2512 | static void |
|
|
2513 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2514 | { |
|
|
2515 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2516 | |
|
|
2517 | /* now signal count waiters */ |
|
|
2518 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2519 | { |
|
|
2520 | SV *cb; |
|
|
2521 | |
|
|
2522 | /* swap first two elements so we can shift a waiter */ |
|
|
2523 | cb = AvARRAY (av)[0]; |
|
|
2524 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2525 | AvARRAY (av)[1] = cb; |
|
|
2526 | |
|
|
2527 | cb = av_shift (av); |
|
|
2528 | |
|
|
2529 | api_ready (aTHX_ cb); |
|
|
2530 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2531 | SvREFCNT_dec (cb); |
|
|
2532 | |
|
|
2533 | --count; |
|
|
2534 | } |
|
|
2535 | } |
|
|
2536 | |
|
|
2537 | static int |
|
|
2538 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2539 | { |
|
|
2540 | /* if we are about to throw, also stop waiting */ |
|
|
2541 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2542 | } |
|
|
2543 | |
|
|
2544 | static void |
|
|
2545 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2546 | { |
|
|
2547 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2548 | |
|
|
2549 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2550 | { |
|
|
2551 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2552 | frame->prepare = prepare_nop; |
|
|
2553 | frame->check = slf_check_nop; |
|
|
2554 | } |
|
|
2555 | else |
|
|
2556 | { |
|
|
2557 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2558 | |
|
|
2559 | av_push (av, waiter); |
|
|
2560 | |
|
|
2561 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2562 | frame->prepare = prepare_schedule; |
|
|
2563 | frame->check = slf_check_signal_wait; |
|
|
2564 | } |
2082 | } |
2565 | } |
2083 | |
2566 | |
2084 | /*****************************************************************************/ |
2567 | /*****************************************************************************/ |
|
|
2568 | /* Coro::AIO */ |
2085 | |
2569 | |
2086 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
2570 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
2087 | |
2571 | |
2088 | /* create a closure from XS, returns a code reference */ |
2572 | /* helper storage struct */ |
2089 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
2573 | struct io_state |
2090 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2091 | static SV * |
|
|
2092 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2093 | { |
2574 | { |
2094 | CV *cv = (CV *)NEWSV (0, 0); |
2575 | int errorno; |
|
|
2576 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2577 | int laststatval; |
|
|
2578 | Stat_t statcache; |
|
|
2579 | }; |
2095 | |
2580 | |
|
|
2581 | static void |
|
|
2582 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2583 | { |
|
|
2584 | dXSARGS; |
|
|
2585 | AV *state = (AV *)GENSUB_ARG; |
|
|
2586 | SV *coro = av_pop (state); |
|
|
2587 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2588 | |
|
|
2589 | av_extend (state, items - 1); |
|
|
2590 | |
2096 | sv_upgrade ((SV *)cv, SVt_PVCV); |
2591 | sv_upgrade (data_sv, SVt_PV); |
|
|
2592 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2593 | SvPOK_only (data_sv); |
2097 | |
2594 | |
2098 | CvANON_on (cv); |
2595 | { |
2099 | CvISXSUB_on (cv); |
2596 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
2100 | CvXSUB (cv) = xsub; |
|
|
2101 | GENSUB_ARG = arg; |
|
|
2102 | |
2597 | |
2103 | return newRV_noinc ((SV *)cv); |
2598 | data->errorno = errno; |
|
|
2599 | data->laststype = PL_laststype; |
|
|
2600 | data->laststatval = PL_laststatval; |
|
|
2601 | data->statcache = PL_statcache; |
|
|
2602 | } |
|
|
2603 | |
|
|
2604 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2605 | { |
|
|
2606 | int i; |
|
|
2607 | |
|
|
2608 | for (i = 0; i < items; ++i) |
|
|
2609 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2610 | } |
|
|
2611 | |
|
|
2612 | av_push (state, data_sv); |
|
|
2613 | |
|
|
2614 | api_ready (aTHX_ coro); |
|
|
2615 | SvREFCNT_dec (coro); |
|
|
2616 | SvREFCNT_dec ((AV *)state); |
|
|
2617 | } |
|
|
2618 | |
|
|
2619 | static int |
|
|
2620 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2621 | { |
|
|
2622 | AV *state = (AV *)frame->data; |
|
|
2623 | |
|
|
2624 | /* if we are about to throw, return early */ |
|
|
2625 | /* this does not cancel the aio request, but at least */ |
|
|
2626 | /* it quickly returns */ |
|
|
2627 | if (CORO_THROW) |
|
|
2628 | return 0; |
|
|
2629 | |
|
|
2630 | /* one element that is an RV? repeat! */ |
|
|
2631 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2632 | return 1; |
|
|
2633 | |
|
|
2634 | /* restore status */ |
|
|
2635 | { |
|
|
2636 | SV *data_sv = av_pop (state); |
|
|
2637 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2638 | |
|
|
2639 | errno = data->errorno; |
|
|
2640 | PL_laststype = data->laststype; |
|
|
2641 | PL_laststatval = data->laststatval; |
|
|
2642 | PL_statcache = data->statcache; |
|
|
2643 | |
|
|
2644 | SvREFCNT_dec (data_sv); |
|
|
2645 | } |
|
|
2646 | |
|
|
2647 | /* push result values */ |
|
|
2648 | { |
|
|
2649 | dSP; |
|
|
2650 | int i; |
|
|
2651 | |
|
|
2652 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2653 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2654 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2655 | |
|
|
2656 | PUTBACK; |
|
|
2657 | } |
|
|
2658 | |
|
|
2659 | return 0; |
|
|
2660 | } |
|
|
2661 | |
|
|
2662 | static void |
|
|
2663 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2664 | { |
|
|
2665 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2666 | SV *coro_hv = SvRV (coro_current); |
|
|
2667 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2668 | |
|
|
2669 | /* put our coroutine id on the state arg */ |
|
|
2670 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2671 | |
|
|
2672 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2673 | if (coro->prio) |
|
|
2674 | { |
|
|
2675 | dSP; |
|
|
2676 | |
|
|
2677 | static SV *prio_cv; |
|
|
2678 | static SV *prio_sv; |
|
|
2679 | |
|
|
2680 | if (expect_false (!prio_cv)) |
|
|
2681 | { |
|
|
2682 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2683 | prio_sv = newSViv (0); |
|
|
2684 | } |
|
|
2685 | |
|
|
2686 | PUSHMARK (SP); |
|
|
2687 | sv_setiv (prio_sv, coro->prio); |
|
|
2688 | XPUSHs (prio_sv); |
|
|
2689 | |
|
|
2690 | PUTBACK; |
|
|
2691 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2692 | } |
|
|
2693 | |
|
|
2694 | /* now call the original request */ |
|
|
2695 | { |
|
|
2696 | dSP; |
|
|
2697 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2698 | int i; |
|
|
2699 | |
|
|
2700 | PUSHMARK (SP); |
|
|
2701 | |
|
|
2702 | /* first push all args to the stack */ |
|
|
2703 | EXTEND (SP, items + 1); |
|
|
2704 | |
|
|
2705 | for (i = 0; i < items; ++i) |
|
|
2706 | PUSHs (arg [i]); |
|
|
2707 | |
|
|
2708 | /* now push the callback closure */ |
|
|
2709 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2710 | |
|
|
2711 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2712 | PUTBACK; |
|
|
2713 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2714 | } |
|
|
2715 | |
|
|
2716 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2717 | frame->data = (void *)state; |
|
|
2718 | frame->prepare = prepare_schedule; |
|
|
2719 | frame->check = slf_check_aio_req; |
|
|
2720 | } |
|
|
2721 | |
|
|
2722 | static void |
|
|
2723 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2724 | { |
|
|
2725 | dXSARGS; |
|
|
2726 | |
|
|
2727 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2728 | |
|
|
2729 | XSRETURN_EMPTY; |
2104 | } |
2730 | } |
2105 | |
2731 | |
2106 | /*****************************************************************************/ |
2732 | /*****************************************************************************/ |
|
|
2733 | |
|
|
2734 | #if CORO_CLONE |
|
|
2735 | # include "clone.c" |
|
|
2736 | #endif |
2107 | |
2737 | |
2108 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2738 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2109 | |
2739 | |
2110 | PROTOTYPES: DISABLE |
2740 | PROTOTYPES: DISABLE |
2111 | |
2741 | |
… | |
… | |
2144 | |
2774 | |
2145 | { |
2775 | { |
2146 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
2776 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
2147 | |
2777 | |
2148 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
2778 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
2149 | hv_store_ent (PL_custom_op_names, slf, |
2779 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
2150 | newSVpv ("coro_slf", 0), 0); |
|
|
2151 | |
2780 | |
2152 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
2781 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
2153 | hv_store_ent (PL_custom_op_descs, slf, |
2782 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
2154 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2155 | } |
2783 | } |
2156 | |
2784 | |
2157 | coroapi.ver = CORO_API_VERSION; |
2785 | coroapi.ver = CORO_API_VERSION; |
2158 | coroapi.rev = CORO_API_REVISION; |
2786 | coroapi.rev = CORO_API_REVISION; |
2159 | |
2787 | |
… | |
… | |
2178 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2806 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2179 | } |
2807 | } |
2180 | |
2808 | |
2181 | SV * |
2809 | SV * |
2182 | new (char *klass, ...) |
2810 | new (char *klass, ...) |
|
|
2811 | ALIAS: |
|
|
2812 | Coro::new = 1 |
2183 | CODE: |
2813 | CODE: |
2184 | { |
2814 | { |
2185 | struct coro *coro; |
2815 | struct coro *coro; |
2186 | MAGIC *mg; |
2816 | MAGIC *mg; |
2187 | HV *hv; |
2817 | HV *hv; |
|
|
2818 | CV *cb; |
2188 | int i; |
2819 | int i; |
|
|
2820 | |
|
|
2821 | if (items > 1) |
|
|
2822 | { |
|
|
2823 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2824 | |
|
|
2825 | if (!ix) |
|
|
2826 | { |
|
|
2827 | if (CvISXSUB (cb)) |
|
|
2828 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2829 | |
|
|
2830 | if (!CvROOT (cb)) |
|
|
2831 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2832 | } |
|
|
2833 | } |
2189 | |
2834 | |
2190 | Newz (0, coro, 1, struct coro); |
2835 | Newz (0, coro, 1, struct coro); |
2191 | coro->args = newAV (); |
2836 | coro->args = newAV (); |
2192 | coro->flags = CF_NEW; |
2837 | coro->flags = CF_NEW; |
2193 | |
2838 | |
… | |
… | |
2198 | coro->hv = hv = newHV (); |
2843 | coro->hv = hv = newHV (); |
2199 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2844 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2200 | mg->mg_flags |= MGf_DUP; |
2845 | mg->mg_flags |= MGf_DUP; |
2201 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2846 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2202 | |
2847 | |
|
|
2848 | if (items > 1) |
|
|
2849 | { |
2203 | av_extend (coro->args, items - 1); |
2850 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
2851 | |
|
|
2852 | if (ix) |
|
|
2853 | { |
|
|
2854 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2855 | cb = cv_coro_run; |
|
|
2856 | } |
|
|
2857 | |
|
|
2858 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2859 | |
2204 | for (i = 1; i < items; i++) |
2860 | for (i = 2; i < items; i++) |
2205 | av_push (coro->args, newSVsv (ST (i))); |
2861 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2862 | } |
2206 | } |
2863 | } |
2207 | OUTPUT: |
2864 | OUTPUT: |
2208 | RETVAL |
2865 | RETVAL |
2209 | |
|
|
2210 | void |
|
|
2211 | _set_stacklevel (...) |
|
|
2212 | CODE: |
|
|
2213 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
|
|
2214 | |
2866 | |
2215 | void |
2867 | void |
2216 | transfer (...) |
2868 | transfer (...) |
2217 | PROTOTYPE: $$ |
2869 | PROTOTYPE: $$ |
2218 | CODE: |
2870 | CODE: |
2219 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
2871 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2220 | |
2872 | |
2221 | bool |
2873 | bool |
2222 | _destroy (SV *coro_sv) |
2874 | _destroy (SV *coro_sv) |
2223 | CODE: |
2875 | CODE: |
2224 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2876 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2228 | void |
2880 | void |
2229 | _exit (int code) |
2881 | _exit (int code) |
2230 | PROTOTYPE: $ |
2882 | PROTOTYPE: $ |
2231 | CODE: |
2883 | CODE: |
2232 | _exit (code); |
2884 | _exit (code); |
|
|
2885 | |
|
|
2886 | #if CORO_CLONE |
|
|
2887 | |
|
|
2888 | SV * |
|
|
2889 | clone (Coro::State coro) |
|
|
2890 | CODE: |
|
|
2891 | { |
|
|
2892 | struct coro *ncoro = coro_clone (coro); |
|
|
2893 | MAGIC *mg; |
|
|
2894 | /* TODO: too much duplication */ |
|
|
2895 | ncoro->hv = newHV (); |
|
|
2896 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
2897 | mg->mg_flags |= MGf_DUP; |
|
|
2898 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
2899 | } |
|
|
2900 | OUTPUT: |
|
|
2901 | RETVAL |
|
|
2902 | |
|
|
2903 | #endif |
2233 | |
2904 | |
2234 | int |
2905 | int |
2235 | cctx_stacksize (int new_stacksize = 0) |
2906 | cctx_stacksize (int new_stacksize = 0) |
2236 | PROTOTYPE: ;$ |
2907 | PROTOTYPE: ;$ |
2237 | CODE: |
2908 | CODE: |
… | |
… | |
2342 | |
3013 | |
2343 | void |
3014 | void |
2344 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3015 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2345 | PROTOTYPE: $;$ |
3016 | PROTOTYPE: $;$ |
2346 | CODE: |
3017 | CODE: |
|
|
3018 | { |
|
|
3019 | struct coro *current = SvSTATE_current; |
|
|
3020 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
2347 | SvREFCNT_dec (self->throw); |
3021 | SvREFCNT_dec (*throwp); |
2348 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
3022 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3023 | } |
2349 | |
3024 | |
2350 | void |
3025 | void |
2351 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3026 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2352 | PROTOTYPE: $;$ |
3027 | PROTOTYPE: $;$ |
2353 | C_ARGS: aTHX_ coro, flags |
3028 | C_ARGS: aTHX_ coro, flags |
… | |
… | |
2402 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3077 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2403 | |
3078 | |
2404 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3079 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2405 | } |
3080 | } |
2406 | |
3081 | |
|
|
3082 | |
2407 | MODULE = Coro::State PACKAGE = Coro |
3083 | MODULE = Coro::State PACKAGE = Coro |
2408 | |
3084 | |
2409 | BOOT: |
3085 | BOOT: |
2410 | { |
3086 | { |
2411 | int i; |
3087 | int i; |
2412 | |
3088 | |
2413 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2414 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3089 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2415 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3090 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2416 | |
3091 | cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); |
|
|
3092 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2417 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3093 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2418 | SvREADONLY_on (coro_current); |
3094 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3095 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3096 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3097 | |
|
|
3098 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3099 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3100 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3101 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2419 | |
3102 | |
2420 | coro_stash = gv_stashpv ("Coro", TRUE); |
3103 | coro_stash = gv_stashpv ("Coro", TRUE); |
2421 | |
3104 | |
2422 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3105 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2423 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3106 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
… | |
… | |
2431 | |
3114 | |
2432 | { |
3115 | { |
2433 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3116 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2434 | |
3117 | |
2435 | coroapi.schedule = api_schedule; |
3118 | coroapi.schedule = api_schedule; |
|
|
3119 | coroapi.schedule_to = api_schedule_to; |
2436 | coroapi.cede = api_cede; |
3120 | coroapi.cede = api_cede; |
2437 | coroapi.cede_notself = api_cede_notself; |
3121 | coroapi.cede_notself = api_cede_notself; |
2438 | coroapi.ready = api_ready; |
3122 | coroapi.ready = api_ready; |
2439 | coroapi.is_ready = api_is_ready; |
3123 | coroapi.is_ready = api_is_ready; |
2440 | coroapi.nready = coro_nready; |
3124 | coroapi.nready = coro_nready; |
2441 | coroapi.current = coro_current; |
3125 | coroapi.current = coro_current; |
2442 | |
3126 | |
2443 | GCoroAPI = &coroapi; |
3127 | /*GCoroAPI = &coroapi;*/ |
2444 | sv_setiv (sv, (IV)&coroapi); |
3128 | sv_setiv (sv, (IV)&coroapi); |
2445 | SvREADONLY_on (sv); |
3129 | SvREADONLY_on (sv); |
2446 | } |
3130 | } |
2447 | } |
3131 | } |
2448 | |
3132 | |
2449 | void |
3133 | void |
|
|
3134 | terminate (...) |
|
|
3135 | CODE: |
|
|
3136 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3137 | |
|
|
3138 | void |
2450 | schedule (...) |
3139 | schedule (...) |
2451 | CODE: |
3140 | CODE: |
2452 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); |
3141 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3142 | |
|
|
3143 | void |
|
|
3144 | schedule_to (...) |
|
|
3145 | CODE: |
|
|
3146 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3147 | |
|
|
3148 | void |
|
|
3149 | cede_to (...) |
|
|
3150 | CODE: |
|
|
3151 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
2453 | |
3152 | |
2454 | void |
3153 | void |
2455 | cede (...) |
3154 | cede (...) |
2456 | CODE: |
3155 | CODE: |
2457 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); |
3156 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
2458 | |
3157 | |
2459 | void |
3158 | void |
2460 | cede_notself (...) |
3159 | cede_notself (...) |
2461 | CODE: |
3160 | CODE: |
2462 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); |
3161 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
|
|
3162 | |
|
|
3163 | void |
|
|
3164 | _cancel (Coro::State self) |
|
|
3165 | CODE: |
|
|
3166 | coro_state_destroy (aTHX_ self); |
|
|
3167 | coro_call_on_destroy (aTHX_ self); |
2463 | |
3168 | |
2464 | void |
3169 | void |
2465 | _set_current (SV *current) |
3170 | _set_current (SV *current) |
2466 | PROTOTYPE: $ |
3171 | PROTOTYPE: $ |
2467 | CODE: |
3172 | CODE: |
… | |
… | |
2512 | CODE: |
3217 | CODE: |
2513 | RETVAL = coro_nready; |
3218 | RETVAL = coro_nready; |
2514 | OUTPUT: |
3219 | OUTPUT: |
2515 | RETVAL |
3220 | RETVAL |
2516 | |
3221 | |
2517 | # for async_pool speedup |
|
|
2518 | void |
3222 | void |
2519 | _pool_1 (SV *cb) |
3223 | _pool_handler (...) |
2520 | CODE: |
3224 | CODE: |
2521 | { |
3225 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
2522 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2523 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2524 | AV *defav = GvAV (PL_defgv); |
|
|
2525 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2526 | AV *invoke_av; |
|
|
2527 | int i, len; |
|
|
2528 | |
|
|
2529 | if (!invoke) |
|
|
2530 | { |
|
|
2531 | SV *old = PL_diehook; |
|
|
2532 | PL_diehook = 0; |
|
|
2533 | SvREFCNT_dec (old); |
|
|
2534 | croak ("\3async_pool terminate\2\n"); |
|
|
2535 | } |
|
|
2536 | |
|
|
2537 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2538 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2539 | |
|
|
2540 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2541 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2542 | |
|
|
2543 | invoke_av = (AV *)SvRV (invoke); |
|
|
2544 | len = av_len (invoke_av); |
|
|
2545 | |
|
|
2546 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2547 | |
|
|
2548 | if (len > 0) |
|
|
2549 | { |
|
|
2550 | av_fill (defav, len - 1); |
|
|
2551 | for (i = 0; i < len; ++i) |
|
|
2552 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2553 | } |
|
|
2554 | } |
|
|
2555 | |
3226 | |
2556 | void |
3227 | void |
2557 | _pool_2 (SV *cb) |
3228 | async_pool (SV *cv, ...) |
2558 | CODE: |
|
|
2559 | { |
|
|
2560 | struct coro *coro = SvSTATE_current; |
|
|
2561 | |
|
|
2562 | sv_setsv (cb, &PL_sv_undef); |
|
|
2563 | |
|
|
2564 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2565 | coro->saved_deffh = 0; |
|
|
2566 | |
|
|
2567 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2568 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2569 | { |
|
|
2570 | SV *old = PL_diehook; |
|
|
2571 | PL_diehook = 0; |
|
|
2572 | SvREFCNT_dec (old); |
|
|
2573 | croak ("\3async_pool terminate\2\n"); |
|
|
2574 | } |
|
|
2575 | |
|
|
2576 | av_clear (GvAV (PL_defgv)); |
|
|
2577 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2578 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2579 | |
|
|
2580 | coro->prio = 0; |
|
|
2581 | |
|
|
2582 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2583 | api_trace (aTHX_ coro_current, 0); |
|
|
2584 | |
|
|
2585 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2586 | } |
|
|
2587 | |
|
|
2588 | |
|
|
2589 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2590 | |
|
|
2591 | void |
|
|
2592 | _get_state (SV *self) |
|
|
2593 | PROTOTYPE: $ |
3229 | PROTOTYPE: &@ |
2594 | PPCODE: |
3230 | PPCODE: |
2595 | { |
3231 | { |
2596 | AV *defav = GvAV (PL_defgv); |
3232 | HV *hv = (HV *)av_pop (av_async_pool); |
2597 | AV *av = newAV (); |
3233 | AV *av = newAV (); |
|
|
3234 | SV *cb = ST (0); |
2598 | int i; |
3235 | int i; |
2599 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2600 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2601 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2602 | SvPOK_only (data_sv); |
|
|
2603 | |
3236 | |
2604 | data->errorno = errno; |
3237 | av_extend (av, items - 2); |
2605 | data->laststype = PL_laststype; |
3238 | for (i = 1; i < items; ++i) |
2606 | data->laststatval = PL_laststatval; |
|
|
2607 | data->statcache = PL_statcache; |
|
|
2608 | |
|
|
2609 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2610 | |
|
|
2611 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2612 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3239 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
2613 | |
3240 | |
2614 | av_push (av, data_sv); |
3241 | if ((SV *)hv == &PL_sv_undef) |
2615 | |
|
|
2616 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2617 | |
|
|
2618 | api_ready (aTHX_ self); |
|
|
2619 | } |
|
|
2620 | |
|
|
2621 | void |
|
|
2622 | _set_state (SV *state) |
|
|
2623 | PROTOTYPE: $ |
|
|
2624 | PPCODE: |
|
|
2625 | { |
|
|
2626 | AV *av = (AV *)SvRV (state); |
|
|
2627 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2628 | int i; |
|
|
2629 | |
|
|
2630 | errno = data->errorno; |
|
|
2631 | PL_laststype = data->laststype; |
|
|
2632 | PL_laststatval = data->laststatval; |
|
|
2633 | PL_statcache = data->statcache; |
|
|
2634 | |
|
|
2635 | EXTEND (SP, AvFILLp (av)); |
|
|
2636 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2637 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2638 | } |
|
|
2639 | |
|
|
2640 | |
|
|
2641 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2642 | |
|
|
2643 | BOOT: |
|
|
2644 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2645 | |
|
|
2646 | void |
|
|
2647 | _schedule (...) |
|
|
2648 | CODE: |
|
|
2649 | { |
|
|
2650 | static int incede; |
|
|
2651 | |
|
|
2652 | api_cede_notself (aTHX); |
|
|
2653 | |
|
|
2654 | ++incede; |
|
|
2655 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2656 | ; |
|
|
2657 | |
|
|
2658 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2659 | if (coro_nready >= incede) |
|
|
2660 | { |
3242 | { |
2661 | PUSHMARK (SP); |
3243 | PUSHMARK (SP); |
|
|
3244 | EXTEND (SP, 2); |
|
|
3245 | PUSHs (sv_Coro); |
|
|
3246 | PUSHs ((SV *)cv_pool_handler); |
2662 | PUTBACK; |
3247 | PUTBACK; |
2663 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3248 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
2664 | SPAGAIN; |
3249 | SPAGAIN; |
|
|
3250 | |
|
|
3251 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
2665 | } |
3252 | } |
2666 | |
3253 | |
2667 | --incede; |
3254 | { |
|
|
3255 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3256 | |
|
|
3257 | assert (!coro->invoke_cb); |
|
|
3258 | assert (!coro->invoke_av); |
|
|
3259 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3260 | coro->invoke_av = av; |
|
|
3261 | } |
|
|
3262 | |
|
|
3263 | api_ready (aTHX_ (SV *)hv); |
|
|
3264 | |
|
|
3265 | if (GIMME_V != G_VOID) |
|
|
3266 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3267 | else |
|
|
3268 | SvREFCNT_dec (hv); |
2668 | } |
3269 | } |
|
|
3270 | |
|
|
3271 | SV * |
|
|
3272 | rouse_cb () |
|
|
3273 | PROTOTYPE: |
|
|
3274 | CODE: |
|
|
3275 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
3276 | OUTPUT: |
|
|
3277 | RETVAL |
|
|
3278 | |
|
|
3279 | void |
|
|
3280 | rouse_wait (...) |
|
|
3281 | PROTOTYPE: ;$ |
|
|
3282 | PPCODE: |
|
|
3283 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2669 | |
3284 | |
2670 | |
3285 | |
2671 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3286 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2672 | |
3287 | |
2673 | BOOT: |
3288 | BOOT: |
2674 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3289 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2675 | |
3290 | |
|
|
3291 | |
2676 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
3292 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2677 | |
3293 | |
2678 | SV * |
3294 | SV * |
2679 | new (SV *klass, SV *count_ = 0) |
3295 | new (SV *klass, SV *count = 0) |
2680 | CODE: |
3296 | CODE: |
2681 | { |
3297 | RETVAL = sv_bless ( |
2682 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
3298 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
2683 | AV *av = newAV (); |
3299 | GvSTASH (CvGV (cv)) |
2684 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
3300 | ); |
2685 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
3301 | OUTPUT: |
2686 | } |
3302 | RETVAL |
|
|
3303 | |
|
|
3304 | # helper for Coro::Channel |
|
|
3305 | SV * |
|
|
3306 | _alloc (int count) |
|
|
3307 | CODE: |
|
|
3308 | RETVAL = coro_waitarray_new (aTHX_ count); |
2687 | OUTPUT: |
3309 | OUTPUT: |
2688 | RETVAL |
3310 | RETVAL |
2689 | |
3311 | |
2690 | SV * |
3312 | SV * |
2691 | count (SV *self) |
3313 | count (SV *self) |
… | |
… | |
2700 | adjust = 1 |
3322 | adjust = 1 |
2701 | CODE: |
3323 | CODE: |
2702 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
3324 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2703 | |
3325 | |
2704 | void |
3326 | void |
2705 | down (SV *self) |
3327 | down (...) |
2706 | CODE: |
3328 | CODE: |
2707 | api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); |
3329 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3330 | |
|
|
3331 | void |
|
|
3332 | wait (...) |
|
|
3333 | CODE: |
|
|
3334 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
2708 | |
3335 | |
2709 | void |
3336 | void |
2710 | try (SV *self) |
3337 | try (SV *self) |
2711 | PPCODE: |
3338 | PPCODE: |
2712 | { |
3339 | { |
… | |
… | |
2724 | XSRETURN_NO; |
3351 | XSRETURN_NO; |
2725 | } |
3352 | } |
2726 | |
3353 | |
2727 | void |
3354 | void |
2728 | waiters (SV *self) |
3355 | waiters (SV *self) |
2729 | CODE: |
3356 | PPCODE: |
2730 | { |
3357 | { |
2731 | AV *av = (AV *)SvRV (self); |
3358 | AV *av = (AV *)SvRV (self); |
|
|
3359 | int wcount = AvFILLp (av) + 1 - 1; |
2732 | |
3360 | |
2733 | if (GIMME_V == G_SCALAR) |
3361 | if (GIMME_V == G_SCALAR) |
2734 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
3362 | XPUSHs (sv_2mortal (newSViv (wcount))); |
2735 | else |
3363 | else |
2736 | { |
3364 | { |
2737 | int i; |
3365 | int i; |
2738 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
3366 | EXTEND (SP, wcount); |
2739 | for (i = 1; i <= AvFILLp (av); ++i) |
3367 | for (i = 1; i <= wcount; ++i) |
2740 | PUSHs (newSVsv (AvARRAY (av)[i])); |
3368 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
2741 | } |
3369 | } |
2742 | } |
3370 | } |
2743 | |
3371 | |
|
|
3372 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3373 | |
|
|
3374 | SV * |
|
|
3375 | new (SV *klass) |
|
|
3376 | CODE: |
|
|
3377 | RETVAL = sv_bless ( |
|
|
3378 | coro_waitarray_new (aTHX_ 0), |
|
|
3379 | GvSTASH (CvGV (cv)) |
|
|
3380 | ); |
|
|
3381 | OUTPUT: |
|
|
3382 | RETVAL |
|
|
3383 | |
|
|
3384 | void |
|
|
3385 | wait (...) |
|
|
3386 | CODE: |
|
|
3387 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3388 | |
|
|
3389 | void |
|
|
3390 | broadcast (SV *self) |
|
|
3391 | CODE: |
|
|
3392 | { |
|
|
3393 | AV *av = (AV *)SvRV (self); |
|
|
3394 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3395 | } |
|
|
3396 | |
|
|
3397 | void |
|
|
3398 | send (SV *self) |
|
|
3399 | CODE: |
|
|
3400 | { |
|
|
3401 | AV *av = (AV *)SvRV (self); |
|
|
3402 | |
|
|
3403 | if (AvFILLp (av)) |
|
|
3404 | coro_signal_wake (aTHX_ av, 1); |
|
|
3405 | else |
|
|
3406 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3407 | } |
|
|
3408 | |
|
|
3409 | IV |
|
|
3410 | awaited (SV *self) |
|
|
3411 | CODE: |
|
|
3412 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3413 | OUTPUT: |
|
|
3414 | RETVAL |
|
|
3415 | |
|
|
3416 | |
|
|
3417 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3418 | |
|
|
3419 | BOOT: |
|
|
3420 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3421 | |
|
|
3422 | void |
|
|
3423 | _schedule (...) |
|
|
3424 | CODE: |
|
|
3425 | { |
|
|
3426 | static int incede; |
|
|
3427 | |
|
|
3428 | api_cede_notself (aTHX); |
|
|
3429 | |
|
|
3430 | ++incede; |
|
|
3431 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3432 | ; |
|
|
3433 | |
|
|
3434 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3435 | if (coro_nready >= incede) |
|
|
3436 | { |
|
|
3437 | PUSHMARK (SP); |
|
|
3438 | PUTBACK; |
|
|
3439 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3440 | } |
|
|
3441 | |
|
|
3442 | --incede; |
|
|
3443 | } |
|
|
3444 | |
|
|
3445 | |
|
|
3446 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3447 | |
|
|
3448 | void |
|
|
3449 | _register (char *target, char *proto, SV *req) |
|
|
3450 | CODE: |
|
|
3451 | { |
|
|
3452 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3453 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3454 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3455 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3456 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3457 | } |
|
|
3458 | |