1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
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2 | |
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3 | #define PERL_NO_GET_CONTEXT |
2 | |
4 | |
3 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
4 | #include "perl.h" |
6 | #include "perl.h" |
5 | #include "XSUB.h" |
7 | #include "XSUB.h" |
6 | |
8 | |
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31 | #else |
33 | #else |
32 | # define PAGESIZE 0 |
34 | # define PAGESIZE 0 |
33 | # define BOOT_PAGESIZE (void)0 |
35 | # define BOOT_PAGESIZE (void)0 |
34 | #endif |
36 | #endif |
35 | |
37 | |
36 | #if USE_VALGRIND |
38 | #if CORO_USE_VALGRIND |
37 | # include <valgrind/valgrind.h> |
39 | # include <valgrind/valgrind.h> |
38 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
39 | #else |
41 | #else |
40 | # define REGISTER_STACK(cctx,start,end) |
42 | # define REGISTER_STACK(cctx,start,end) |
41 | #endif |
43 | #endif |
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74 | #ifndef SvRV_set |
76 | #ifndef SvRV_set |
75 | # define SvRV_set(s,v) SvRV(s) = (v) |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
76 | #endif |
78 | #endif |
77 | |
79 | |
78 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
79 | # undef STACKGUARD |
81 | # undef CORO_STACKGUARD |
80 | #endif |
82 | #endif |
81 | |
83 | |
82 | #ifndef STACKGUARD |
84 | #ifndef CORO_STACKGUARD |
83 | # define STACKGUARD 0 |
85 | # define CORO_STACKGUARD 0 |
84 | #endif |
86 | #endif |
85 | |
87 | |
86 | /* prefer perl internal functions over our own? */ |
88 | /* prefer perl internal functions over our own? */ |
87 | #ifndef PREFER_PERL_FUNCTIONS |
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
88 | # define PREFER_PERL_FUNCTIONS 0 |
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
89 | #endif |
91 | #endif |
90 | |
92 | |
91 | /* The next macro should declare a variable stacklevel that contains and approximation |
93 | /* The next macros try to return the current stack pointer, in an as |
92 | * to the current C stack pointer. Its property is that it changes with each call |
94 | * portable way as possible. */ |
93 | * and should be unique. */ |
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94 | #define dSTACKLEVEL int stacklevel |
95 | #define dSTACKLEVEL volatile char stacklevel |
95 | #define STACKLEVEL ((void *)&stacklevel) |
96 | #define STACKLEVEL ((void *)&stacklevel) |
96 | |
97 | |
97 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
98 | |
99 | |
99 | #if __GNUC__ >= 3 |
100 | #if __GNUC__ >= 3 |
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124 | I32 laststype; |
125 | I32 laststype; |
125 | int laststatval; |
126 | int laststatval; |
126 | Stat_t statcache; |
127 | Stat_t statcache; |
127 | }; |
128 | }; |
128 | |
129 | |
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130 | static size_t coro_stacksize = CORO_STACKSIZE; |
129 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
130 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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133 | static JMPENV *main_top_env; |
131 | static HV *coro_state_stash, *coro_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
132 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
133 | |
136 | |
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137 | /* async_pool helper stuff */ |
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138 | static SV *sv_pool_rss; |
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139 | static SV *sv_pool_size; |
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140 | static AV *av_async_pool; |
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141 | |
134 | static struct coro_cctx *cctx_first; |
142 | static struct coro_cctx *cctx_first; |
135 | static int cctx_count, cctx_idle; |
143 | static int cctx_count, cctx_idle; |
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144 | |
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145 | enum { |
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146 | CC_MAPPED = 0x01, |
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147 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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148 | CC_TRACE = 0x04, |
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149 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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150 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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151 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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152 | }; |
136 | |
153 | |
137 | /* this is a structure representing a c-level coroutine */ |
154 | /* this is a structure representing a c-level coroutine */ |
138 | typedef struct coro_cctx { |
155 | typedef struct coro_cctx { |
139 | struct coro_cctx *next; |
156 | struct coro_cctx *next; |
140 | |
157 | |
141 | /* the stack */ |
158 | /* the stack */ |
142 | void *sptr; |
159 | void *sptr; |
143 | ssize_t ssize; /* positive == mmap, otherwise malloc */ |
160 | size_t ssize; |
144 | |
161 | |
145 | /* cpu state */ |
162 | /* cpu state */ |
146 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
163 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
147 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
164 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
148 | JMPENV *top_env; |
165 | JMPENV *top_env; |
149 | coro_context cctx; |
166 | coro_context cctx; |
150 | |
167 | |
151 | int inuse; |
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152 | |
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153 | #if USE_VALGRIND |
168 | #if CORO_USE_VALGRIND |
154 | int valgrind_id; |
169 | int valgrind_id; |
155 | #endif |
170 | #endif |
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171 | unsigned char flags; |
156 | } coro_cctx; |
172 | } coro_cctx; |
157 | |
173 | |
158 | enum { |
174 | enum { |
159 | CF_RUNNING = 0x0001, /* coroutine is running */ |
175 | CF_RUNNING = 0x0001, /* coroutine is running */ |
160 | CF_READY = 0x0002, /* coroutine is ready */ |
176 | CF_READY = 0x0002, /* coroutine is ready */ |
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175 | |
191 | |
176 | /* optionally saved, might be zero */ |
192 | /* optionally saved, might be zero */ |
177 | AV *defav; /* @_ */ |
193 | AV *defav; /* @_ */ |
178 | SV *defsv; /* $_ */ |
194 | SV *defsv; /* $_ */ |
179 | SV *errsv; /* $@ */ |
195 | SV *errsv; /* $@ */ |
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196 | GV *deffh; /* default filehandle */ |
180 | SV *irssv; /* $/ */ |
197 | SV *irssv; /* $/ */ |
181 | SV *irssv_sv; /* real $/ cache */ |
198 | SV *irssv_sv; /* real $/ cache */ |
182 | |
199 | |
183 | #define VAR(name,type) type name; |
200 | #define VAR(name,type) type name; |
184 | # include "state.h" |
201 | # include "state.h" |
185 | #undef VAR |
202 | #undef VAR |
186 | |
203 | |
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204 | /* statistics */ |
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205 | int usecount; /* number of switches to this coro */ |
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206 | |
187 | /* coro process data */ |
207 | /* coro process data */ |
188 | int prio; |
208 | int prio; |
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209 | |
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210 | /* linked list */ |
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211 | struct coro *next, *prev; |
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212 | HV *hv; /* the perl hash associated with this coro, if any */ |
189 | }; |
213 | }; |
190 | |
214 | |
191 | typedef struct coro *Coro__State; |
215 | typedef struct coro *Coro__State; |
192 | typedef struct coro *Coro__State_or_hashref; |
216 | typedef struct coro *Coro__State_or_hashref; |
193 | |
217 | |
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202 | |
226 | |
203 | /* for Coro.pm */ |
227 | /* for Coro.pm */ |
204 | static SV *coro_current; |
228 | static SV *coro_current; |
205 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
229 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
206 | static int coro_nready; |
230 | static int coro_nready; |
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231 | static struct coro *coro_first; |
207 | |
232 | |
208 | /** lowlevel stuff **********************************************************/ |
233 | /** lowlevel stuff **********************************************************/ |
209 | |
234 | |
210 | static AV * |
235 | static AV * |
211 | coro_clone_padlist (CV *cv) |
236 | coro_clone_padlist (pTHX_ CV *cv) |
212 | { |
237 | { |
213 | AV *padlist = CvPADLIST (cv); |
238 | AV *padlist = CvPADLIST (cv); |
214 | AV *newpadlist, *newpad; |
239 | AV *newpadlist, *newpad; |
215 | |
240 | |
216 | newpadlist = newAV (); |
241 | newpadlist = newAV (); |
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228 | |
253 | |
229 | return newpadlist; |
254 | return newpadlist; |
230 | } |
255 | } |
231 | |
256 | |
232 | static void |
257 | static void |
233 | free_padlist (AV *padlist) |
258 | free_padlist (pTHX_ AV *padlist) |
234 | { |
259 | { |
235 | /* may be during global destruction */ |
260 | /* may be during global destruction */ |
236 | if (SvREFCNT (padlist)) |
261 | if (SvREFCNT (padlist)) |
237 | { |
262 | { |
238 | I32 i = AvFILLp (padlist); |
263 | I32 i = AvFILLp (padlist); |
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259 | AV *padlist; |
284 | AV *padlist; |
260 | AV *av = (AV *)mg->mg_obj; |
285 | AV *av = (AV *)mg->mg_obj; |
261 | |
286 | |
262 | /* casting is fun. */ |
287 | /* casting is fun. */ |
263 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
288 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
264 | free_padlist (padlist); |
289 | free_padlist (aTHX_ padlist); |
265 | |
290 | |
266 | SvREFCNT_dec (av); |
291 | SvREFCNT_dec (av); |
267 | |
292 | |
268 | return 0; |
293 | return 0; |
269 | } |
294 | } |
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277 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
302 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
278 | ? SvMAGIC (cv) \ |
303 | ? SvMAGIC (cv) \ |
279 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
304 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
280 | : 0 |
305 | : 0 |
281 | |
306 | |
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307 | static struct coro * |
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308 | SvSTATE_ (pTHX_ SV *coro) |
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309 | { |
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310 | HV *stash; |
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311 | MAGIC *mg; |
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312 | |
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313 | if (SvROK (coro)) |
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314 | coro = SvRV (coro); |
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315 | |
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316 | if (SvTYPE (coro) != SVt_PVHV) |
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317 | croak ("Coro::State object required"); |
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318 | |
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319 | stash = SvSTASH (coro); |
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320 | if (stash != coro_stash && stash != coro_state_stash) |
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321 | { |
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322 | /* very slow, but rare, check */ |
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323 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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324 | croak ("Coro::State object required"); |
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325 | } |
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326 | |
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327 | mg = CORO_MAGIC (coro); |
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328 | return (struct coro *)mg->mg_ptr; |
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329 | } |
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330 | |
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331 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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332 | |
282 | /* the next two functions merely cache the padlists */ |
333 | /* the next two functions merely cache the padlists */ |
283 | static void |
334 | static void |
284 | get_padlist (CV *cv) |
335 | get_padlist (pTHX_ CV *cv) |
285 | { |
336 | { |
286 | MAGIC *mg = CORO_MAGIC (cv); |
337 | MAGIC *mg = CORO_MAGIC (cv); |
287 | AV *av; |
338 | AV *av; |
288 | |
339 | |
289 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
340 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
290 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
341 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
291 | else |
342 | else |
292 | { |
343 | { |
293 | #if PREFER_PERL_FUNCTIONS |
344 | #if CORO_PREFER_PERL_FUNCTIONS |
294 | /* this is probably cleaner, but also slower? */ |
345 | /* this is probably cleaner, but also slower? */ |
295 | CV *cp = Perl_cv_clone (cv); |
346 | CV *cp = Perl_cv_clone (cv); |
296 | CvPADLIST (cv) = CvPADLIST (cp); |
347 | CvPADLIST (cv) = CvPADLIST (cp); |
297 | CvPADLIST (cp) = 0; |
348 | CvPADLIST (cp) = 0; |
298 | SvREFCNT_dec (cp); |
349 | SvREFCNT_dec (cp); |
299 | #else |
350 | #else |
300 | CvPADLIST (cv) = coro_clone_padlist (cv); |
351 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
301 | #endif |
352 | #endif |
302 | } |
353 | } |
303 | } |
354 | } |
304 | |
355 | |
305 | static void |
356 | static void |
306 | put_padlist (CV *cv) |
357 | put_padlist (pTHX_ CV *cv) |
307 | { |
358 | { |
308 | MAGIC *mg = CORO_MAGIC (cv); |
359 | MAGIC *mg = CORO_MAGIC (cv); |
309 | AV *av; |
360 | AV *av; |
310 | |
361 | |
311 | if (!mg) |
362 | if (!mg) |
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330 | #define SE } while (0) |
381 | #define SE } while (0) |
331 | |
382 | |
332 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
383 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
333 | |
384 | |
334 | static void |
385 | static void |
335 | load_perl (Coro__State c) |
386 | load_perl (pTHX_ Coro__State c) |
336 | { |
387 | { |
337 | #define VAR(name,type) PL_ ## name = c->name; |
388 | #define VAR(name,type) PL_ ## name = c->name; |
338 | # include "state.h" |
389 | # include "state.h" |
339 | #undef VAR |
390 | #undef VAR |
340 | |
391 | |
341 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
392 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
342 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
393 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
343 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
394 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
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395 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
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396 | |
344 | if (c->irssv) |
397 | if (c->irssv) |
345 | { |
398 | { |
346 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
399 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
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400 | { |
347 | SvREFCNT_dec (c->irssv); |
401 | SvREFCNT_dec (c->irssv); |
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402 | c->irssv = 0; |
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403 | } |
348 | else |
404 | else |
349 | { |
405 | { |
350 | REPLACE_SV (PL_rs, c->irssv); |
406 | REPLACE_SV (PL_rs, c->irssv); |
351 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
407 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
352 | sv_setsv (c->irssv_sv, PL_rs); |
408 | sv_setsv (c->irssv_sv, PL_rs); |
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358 | CV *cv; |
414 | CV *cv; |
359 | |
415 | |
360 | /* now do the ugly restore mess */ |
416 | /* now do the ugly restore mess */ |
361 | while ((cv = (CV *)POPs)) |
417 | while ((cv = (CV *)POPs)) |
362 | { |
418 | { |
363 | put_padlist (cv); /* mark this padlist as available */ |
419 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
364 | CvDEPTH (cv) = PTR2IV (POPs); |
420 | CvDEPTH (cv) = PTR2IV (POPs); |
365 | CvPADLIST (cv) = (AV *)POPs; |
421 | CvPADLIST (cv) = (AV *)POPs; |
366 | } |
422 | } |
367 | |
423 | |
368 | PUTBACK; |
424 | PUTBACK; |
369 | } |
425 | } |
370 | } |
426 | } |
371 | |
427 | |
372 | static void |
428 | static void |
373 | save_perl (Coro__State c) |
429 | save_perl (pTHX_ Coro__State c) |
374 | { |
430 | { |
375 | { |
431 | { |
376 | dSP; |
432 | dSP; |
377 | I32 cxix = cxstack_ix; |
433 | I32 cxix = cxstack_ix; |
378 | PERL_CONTEXT *ccstk = cxstack; |
434 | PERL_CONTEXT *ccstk = cxstack; |
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381 | /* |
437 | /* |
382 | * the worst thing you can imagine happens first - we have to save |
438 | * the worst thing you can imagine happens first - we have to save |
383 | * (and reinitialize) all cv's in the whole callchain :( |
439 | * (and reinitialize) all cv's in the whole callchain :( |
384 | */ |
440 | */ |
385 | |
441 | |
386 | EXTEND (SP, 3 + 1); |
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387 | PUSHs (Nullsv); |
442 | XPUSHs (Nullsv); |
388 | /* this loop was inspired by pp_caller */ |
443 | /* this loop was inspired by pp_caller */ |
389 | for (;;) |
444 | for (;;) |
390 | { |
445 | { |
391 | while (cxix >= 0) |
446 | while (cxix >= 0) |
392 | { |
447 | { |
393 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
448 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
394 | |
449 | |
395 | if (CxTYPE (cx) == CXt_SUB) |
450 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
396 | { |
451 | { |
397 | CV *cv = cx->blk_sub.cv; |
452 | CV *cv = cx->blk_sub.cv; |
398 | |
453 | |
399 | if (CvDEPTH (cv)) |
454 | if (CvDEPTH (cv)) |
400 | { |
455 | { |
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402 | PUSHs ((SV *)CvPADLIST (cv)); |
457 | PUSHs ((SV *)CvPADLIST (cv)); |
403 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
458 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
404 | PUSHs ((SV *)cv); |
459 | PUSHs ((SV *)cv); |
405 | |
460 | |
406 | CvDEPTH (cv) = 0; |
461 | CvDEPTH (cv) = 0; |
407 | get_padlist (cv); |
462 | get_padlist (aTHX_ cv); |
408 | } |
463 | } |
409 | } |
464 | } |
410 | } |
465 | } |
411 | |
466 | |
412 | if (top_si->si_type == PERLSI_MAIN) |
467 | if (top_si->si_type == PERLSI_MAIN) |
413 | break; |
468 | break; |
414 | |
469 | |
415 | top_si = top_si->si_prev; |
470 | top_si = top_si->si_prev; |
416 | ccstk = top_si->si_cxstack; |
471 | ccstk = top_si->si_cxstack; |
417 | cxix = top_si->si_cxix; |
472 | cxix = top_si->si_cxix; |
418 | } |
473 | } |
419 | |
474 | |
420 | PUTBACK; |
475 | PUTBACK; |
421 | } |
476 | } |
422 | |
477 | |
423 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
478 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
424 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
479 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
425 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
480 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
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481 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
426 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
482 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
427 | |
483 | |
428 | #define VAR(name,type)c->name = PL_ ## name; |
484 | #define VAR(name,type)c->name = PL_ ## name; |
429 | # include "state.h" |
485 | # include "state.h" |
430 | #undef VAR |
486 | #undef VAR |
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434 | * allocate various perl stacks. This is an exact copy |
490 | * allocate various perl stacks. This is an exact copy |
435 | * of perl.c:init_stacks, except that it uses less memory |
491 | * of perl.c:init_stacks, except that it uses less memory |
436 | * on the (sometimes correct) assumption that coroutines do |
492 | * on the (sometimes correct) assumption that coroutines do |
437 | * not usually need a lot of stackspace. |
493 | * not usually need a lot of stackspace. |
438 | */ |
494 | */ |
439 | #if PREFER_PERL_FUNCTIONS |
495 | #if CORO_PREFER_PERL_FUNCTIONS |
440 | # define coro_init_stacks init_stacks |
496 | # define coro_init_stacks init_stacks |
441 | #else |
497 | #else |
442 | static void |
498 | static void |
443 | coro_init_stacks () |
499 | coro_init_stacks (pTHX) |
444 | { |
500 | { |
445 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
501 | PL_curstackinfo = new_stackinfo(64, 6); |
446 | PL_curstackinfo->si_type = PERLSI_MAIN; |
502 | PL_curstackinfo->si_type = PERLSI_MAIN; |
447 | PL_curstack = PL_curstackinfo->si_stack; |
503 | PL_curstack = PL_curstackinfo->si_stack; |
448 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
504 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
449 | |
505 | |
450 | PL_stack_base = AvARRAY(PL_curstack); |
506 | PL_stack_base = AvARRAY(PL_curstack); |
451 | PL_stack_sp = PL_stack_base; |
507 | PL_stack_sp = PL_stack_base; |
452 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
508 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
453 | |
509 | |
454 | New(50,PL_tmps_stack,128,SV*); |
510 | New(50,PL_tmps_stack,64,SV*); |
455 | PL_tmps_floor = -1; |
511 | PL_tmps_floor = -1; |
456 | PL_tmps_ix = -1; |
512 | PL_tmps_ix = -1; |
457 | PL_tmps_max = 128; |
513 | PL_tmps_max = 64; |
458 | |
514 | |
459 | New(54,PL_markstack,32,I32); |
515 | New(54,PL_markstack,16,I32); |
460 | PL_markstack_ptr = PL_markstack; |
516 | PL_markstack_ptr = PL_markstack; |
461 | PL_markstack_max = PL_markstack + 32; |
517 | PL_markstack_max = PL_markstack + 16; |
462 | |
518 | |
463 | #ifdef SET_MARK_OFFSET |
519 | #ifdef SET_MARK_OFFSET |
464 | SET_MARK_OFFSET; |
520 | SET_MARK_OFFSET; |
465 | #endif |
521 | #endif |
466 | |
522 | |
467 | New(54,PL_scopestack,32,I32); |
523 | New(54,PL_scopestack,16,I32); |
468 | PL_scopestack_ix = 0; |
524 | PL_scopestack_ix = 0; |
469 | PL_scopestack_max = 32; |
525 | PL_scopestack_max = 16; |
470 | |
526 | |
471 | New(54,PL_savestack,64,ANY); |
527 | New(54,PL_savestack,64,ANY); |
472 | PL_savestack_ix = 0; |
528 | PL_savestack_ix = 0; |
473 | PL_savestack_max = 64; |
529 | PL_savestack_max = 64; |
474 | |
530 | |
475 | #if !PERL_VERSION_ATLEAST (5,9,0) |
531 | #if !PERL_VERSION_ATLEAST (5,9,0) |
476 | New(54,PL_retstack,16,OP*); |
532 | New(54,PL_retstack,4,OP*); |
477 | PL_retstack_ix = 0; |
533 | PL_retstack_ix = 0; |
478 | PL_retstack_max = 16; |
534 | PL_retstack_max = 4; |
479 | #endif |
535 | #endif |
480 | } |
536 | } |
481 | #endif |
537 | #endif |
482 | |
538 | |
483 | /* |
539 | /* |
484 | * destroy the stacks, the callchain etc... |
540 | * destroy the stacks, the callchain etc... |
485 | */ |
541 | */ |
486 | static void |
542 | static void |
487 | coro_destroy_stacks () |
543 | coro_destroy_stacks (pTHX) |
488 | { |
544 | { |
489 | if (!IN_DESTRUCT) |
545 | if (!IN_DESTRUCT) |
490 | { |
546 | { |
491 | /* restore all saved variables and stuff */ |
547 | /* restore all saved variables and stuff */ |
492 | LEAVE_SCOPE (0); |
548 | LEAVE_SCOPE (0); |
… | |
… | |
525 | #if !PERL_VERSION_ATLEAST (5,9,0) |
581 | #if !PERL_VERSION_ATLEAST (5,9,0) |
526 | Safefree (PL_retstack); |
582 | Safefree (PL_retstack); |
527 | #endif |
583 | #endif |
528 | } |
584 | } |
529 | |
585 | |
|
|
586 | static size_t |
|
|
587 | coro_rss (pTHX_ struct coro *coro) |
|
|
588 | { |
|
|
589 | size_t rss = sizeof (coro); |
|
|
590 | |
|
|
591 | if (coro->mainstack) |
|
|
592 | { |
|
|
593 | if (coro->flags & CF_RUNNING) |
|
|
594 | { |
|
|
595 | #define VAR(name,type)coro->name = PL_ ## name; |
|
|
596 | # include "state.h" |
|
|
597 | #undef VAR |
|
|
598 | } |
|
|
599 | |
|
|
600 | rss += sizeof (coro->curstackinfo); |
|
|
601 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
602 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
603 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
604 | rss += coro->tmps_max * sizeof (SV *); |
|
|
605 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
606 | rss += coro->scopestack_max * sizeof (I32); |
|
|
607 | rss += coro->savestack_max * sizeof (ANY); |
|
|
608 | |
|
|
609 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
610 | rss += coro->retstack_max * sizeof (OP *); |
|
|
611 | #endif |
|
|
612 | } |
|
|
613 | |
|
|
614 | return rss; |
|
|
615 | } |
|
|
616 | |
530 | /** coroutine stack handling ************************************************/ |
617 | /** coroutine stack handling ************************************************/ |
531 | |
618 | |
532 | static void |
619 | static void |
533 | setup_coro (struct coro *coro) |
620 | setup_coro (pTHX_ struct coro *coro) |
534 | { |
621 | { |
535 | /* |
622 | /* |
536 | * emulate part of the perl startup here. |
623 | * emulate part of the perl startup here. |
537 | */ |
624 | */ |
538 | |
|
|
539 | coro_init_stacks (); |
625 | coro_init_stacks (aTHX); |
540 | |
626 | |
|
|
627 | PL_runops = RUNOPS_DEFAULT; |
541 | PL_curcop = &PL_compiling; |
628 | PL_curcop = &PL_compiling; |
542 | PL_in_eval = EVAL_NULL; |
629 | PL_in_eval = EVAL_NULL; |
|
|
630 | PL_comppad = 0; |
543 | PL_curpm = 0; |
631 | PL_curpm = 0; |
544 | PL_localizing = 0; |
632 | PL_localizing = 0; |
545 | PL_dirty = 0; |
633 | PL_dirty = 0; |
546 | PL_restartop = 0; |
634 | PL_restartop = 0; |
547 | |
635 | |
… | |
… | |
555 | Zero (&myop, 1, LOGOP); |
643 | Zero (&myop, 1, LOGOP); |
556 | myop.op_next = Nullop; |
644 | myop.op_next = Nullop; |
557 | myop.op_flags = OPf_WANT_VOID; |
645 | myop.op_flags = OPf_WANT_VOID; |
558 | |
646 | |
559 | PUSHMARK (SP); |
647 | PUSHMARK (SP); |
560 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
648 | XPUSHs (av_shift (GvAV (PL_defgv))); |
561 | PUTBACK; |
649 | PUTBACK; |
562 | PL_op = (OP *)&myop; |
650 | PL_op = (OP *)&myop; |
563 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
651 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
564 | SPAGAIN; |
652 | SPAGAIN; |
565 | } |
653 | } |
566 | |
654 | |
567 | ENTER; /* necessary e.g. for dounwind */ |
655 | ENTER; /* necessary e.g. for dounwind */ |
568 | } |
656 | } |
569 | |
657 | |
570 | static void |
658 | static void |
571 | free_coro_mortal () |
659 | free_coro_mortal (pTHX) |
572 | { |
660 | { |
573 | if (coro_mortal) |
661 | if (coro_mortal) |
574 | { |
662 | { |
575 | SvREFCNT_dec (coro_mortal); |
663 | SvREFCNT_dec (coro_mortal); |
576 | coro_mortal = 0; |
664 | coro_mortal = 0; |
577 | } |
665 | } |
578 | } |
666 | } |
579 | |
667 | |
|
|
668 | static int |
|
|
669 | runops_trace (pTHX) |
|
|
670 | { |
|
|
671 | COP *oldcop = 0; |
|
|
672 | int oldcxix = -2; |
|
|
673 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
674 | coro_cctx *cctx = coro->cctx; |
|
|
675 | |
|
|
676 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
677 | { |
|
|
678 | PERL_ASYNC_CHECK (); |
|
|
679 | |
|
|
680 | if (cctx->flags & CC_TRACE_ALL) |
|
|
681 | { |
|
|
682 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
683 | { |
|
|
684 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
685 | SV **bot, **top; |
|
|
686 | AV *av = newAV (); /* return values */ |
|
|
687 | SV **cb; |
|
|
688 | dSP; |
|
|
689 | |
|
|
690 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
691 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
692 | if (isGV (gv)) |
|
|
693 | gv_efullname3 (fullname, gv, 0); |
|
|
694 | |
|
|
695 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
696 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
697 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
698 | : bot; |
|
|
699 | |
|
|
700 | while (bot < top) |
|
|
701 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
702 | |
|
|
703 | PL_runops = RUNOPS_DEFAULT; |
|
|
704 | ENTER; |
|
|
705 | SAVETMPS; |
|
|
706 | EXTEND (SP, 3); |
|
|
707 | PUSHMARK (SP); |
|
|
708 | PUSHs (&PL_sv_no); |
|
|
709 | PUSHs (fullname); |
|
|
710 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
711 | PUTBACK; |
|
|
712 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
713 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
714 | SPAGAIN; |
|
|
715 | FREETMPS; |
|
|
716 | LEAVE; |
|
|
717 | PL_runops = runops_trace; |
|
|
718 | } |
|
|
719 | |
|
|
720 | if (oldcop != PL_curcop) |
|
|
721 | { |
|
|
722 | oldcop = PL_curcop; |
|
|
723 | |
|
|
724 | if (PL_curcop != &PL_compiling) |
|
|
725 | { |
|
|
726 | SV **cb; |
|
|
727 | |
|
|
728 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
729 | { |
|
|
730 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
731 | |
|
|
732 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
733 | { |
|
|
734 | runops_proc_t old_runops = PL_runops; |
|
|
735 | dSP; |
|
|
736 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
737 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
738 | |
|
|
739 | if (isGV (gv)) |
|
|
740 | gv_efullname3 (fullname, gv, 0); |
|
|
741 | |
|
|
742 | PL_runops = RUNOPS_DEFAULT; |
|
|
743 | ENTER; |
|
|
744 | SAVETMPS; |
|
|
745 | EXTEND (SP, 3); |
|
|
746 | PUSHMARK (SP); |
|
|
747 | PUSHs (&PL_sv_yes); |
|
|
748 | PUSHs (fullname); |
|
|
749 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
750 | PUTBACK; |
|
|
751 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
752 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
753 | SPAGAIN; |
|
|
754 | FREETMPS; |
|
|
755 | LEAVE; |
|
|
756 | PL_runops = runops_trace; |
|
|
757 | } |
|
|
758 | |
|
|
759 | oldcxix = cxstack_ix; |
|
|
760 | } |
|
|
761 | |
|
|
762 | if (cctx->flags & CC_TRACE_LINE) |
|
|
763 | { |
|
|
764 | dSP; |
|
|
765 | |
|
|
766 | PL_runops = RUNOPS_DEFAULT; |
|
|
767 | ENTER; |
|
|
768 | SAVETMPS; |
|
|
769 | EXTEND (SP, 3); |
|
|
770 | PL_runops = RUNOPS_DEFAULT; |
|
|
771 | PUSHMARK (SP); |
|
|
772 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
773 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
774 | PUTBACK; |
|
|
775 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
776 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
777 | SPAGAIN; |
|
|
778 | FREETMPS; |
|
|
779 | LEAVE; |
|
|
780 | PL_runops = runops_trace; |
|
|
781 | } |
|
|
782 | } |
|
|
783 | } |
|
|
784 | } |
|
|
785 | } |
|
|
786 | |
|
|
787 | TAINT_NOT; |
|
|
788 | return 0; |
|
|
789 | } |
|
|
790 | |
580 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
791 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
792 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
793 | /* during execution of a perl program */ |
581 | static void NOINLINE |
794 | static void NOINLINE |
582 | prepare_cctx (coro_cctx *cctx) |
795 | prepare_cctx (pTHX_ coro_cctx *cctx) |
583 | { |
796 | { |
584 | dSP; |
797 | dSP; |
585 | LOGOP myop; |
798 | LOGOP myop; |
|
|
799 | |
|
|
800 | PL_top_env = &PL_start_env; |
|
|
801 | |
|
|
802 | if (cctx->flags & CC_TRACE) |
|
|
803 | PL_runops = runops_trace; |
586 | |
804 | |
587 | Zero (&myop, 1, LOGOP); |
805 | Zero (&myop, 1, LOGOP); |
588 | myop.op_next = PL_op; |
806 | myop.op_next = PL_op; |
589 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
807 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
590 | |
808 | |
… | |
… | |
596 | PL_op = (OP *)&myop; |
814 | PL_op = (OP *)&myop; |
597 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
815 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
598 | SPAGAIN; |
816 | SPAGAIN; |
599 | } |
817 | } |
600 | |
818 | |
|
|
819 | /* |
|
|
820 | * this is a _very_ stripped down perl interpreter ;) |
|
|
821 | */ |
601 | static void |
822 | static void |
602 | coro_run (void *arg) |
823 | coro_run (void *arg) |
603 | { |
824 | { |
|
|
825 | dTHX; |
|
|
826 | |
604 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
827 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
605 | UNLOCK; |
828 | UNLOCK; |
606 | |
829 | |
607 | /* |
830 | /* we now skip the entersub that lead to transfer() */ |
608 | * this is a _very_ stripped down perl interpreter ;) |
831 | PL_op = PL_op->op_next; |
609 | */ |
|
|
610 | PL_top_env = &PL_start_env; |
|
|
611 | |
832 | |
612 | /* inject call to cctx_init */ |
833 | /* inject a fake subroutine call to cctx_init */ |
613 | prepare_cctx ((coro_cctx *)arg); |
834 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
614 | |
835 | |
615 | /* somebody will hit me for both perl_run and PL_restartop */ |
836 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
616 | PL_restartop = PL_op; |
837 | PL_restartop = PL_op; |
617 | perl_run (PL_curinterp); |
838 | perl_run (PL_curinterp); |
618 | |
839 | |
619 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
840 | /* |
620 | abort (); |
841 | * If perl-run returns we assume exit() was being called or the coro |
|
|
842 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
843 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
844 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
845 | * coroutine as Coro has no such concept |
|
|
846 | */ |
|
|
847 | PL_top_env = main_top_env; |
|
|
848 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
621 | } |
849 | } |
622 | |
850 | |
623 | static coro_cctx * |
851 | static coro_cctx * |
624 | cctx_new () |
852 | cctx_new () |
625 | { |
853 | { |
626 | coro_cctx *cctx; |
854 | coro_cctx *cctx; |
|
|
855 | void *stack_start; |
|
|
856 | size_t stack_size; |
627 | |
857 | |
628 | ++cctx_count; |
858 | ++cctx_count; |
629 | |
859 | |
630 | Newz (0, cctx, 1, coro_cctx); |
860 | Newz (0, cctx, 1, coro_cctx); |
631 | |
861 | |
632 | #if HAVE_MMAP |
862 | #if HAVE_MMAP |
633 | |
863 | |
634 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
864 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
635 | /* mmap supposedly does allocate-on-write for us */ |
865 | /* mmap supposedly does allocate-on-write for us */ |
636 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
866 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
637 | |
867 | |
638 | if (cctx->sptr != (void *)-1) |
868 | if (cctx->sptr != (void *)-1) |
639 | { |
869 | { |
640 | # if STACKGUARD |
870 | # if CORO_STACKGUARD |
641 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
871 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
642 | # endif |
872 | # endif |
643 | REGISTER_STACK ( |
|
|
644 | cctx, |
|
|
645 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
873 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
646 | cctx->ssize + (char *)cctx->sptr |
874 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
647 | ); |
875 | cctx->flags |= CC_MAPPED; |
648 | |
|
|
649 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
650 | } |
876 | } |
651 | else |
877 | else |
652 | #endif |
878 | #endif |
653 | { |
879 | { |
654 | cctx->ssize = -STACKSIZE * (long)sizeof (long); |
880 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
655 | New (0, cctx->sptr, STACKSIZE, long); |
881 | New (0, cctx->sptr, coro_stacksize, long); |
656 | |
882 | |
657 | if (!cctx->sptr) |
883 | if (!cctx->sptr) |
658 | { |
884 | { |
659 | perror ("FATAL: unable to allocate stack for coroutine"); |
885 | perror ("FATAL: unable to allocate stack for coroutine"); |
660 | _exit (EXIT_FAILURE); |
886 | _exit (EXIT_FAILURE); |
661 | } |
887 | } |
662 | |
888 | |
663 | REGISTER_STACK ( |
889 | stack_start = cctx->sptr; |
664 | cctx, |
890 | stack_size = cctx->ssize; |
665 | (char *)cctx->sptr, |
891 | } |
666 | (char *)cctx->sptr - cctx->ssize |
|
|
667 | ); |
|
|
668 | |
892 | |
|
|
893 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
669 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize); |
894 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
670 | } |
|
|
671 | |
895 | |
672 | return cctx; |
896 | return cctx; |
673 | } |
897 | } |
674 | |
898 | |
675 | static void |
899 | static void |
… | |
… | |
678 | if (!cctx) |
902 | if (!cctx) |
679 | return; |
903 | return; |
680 | |
904 | |
681 | --cctx_count; |
905 | --cctx_count; |
682 | |
906 | |
683 | #if USE_VALGRIND |
907 | #if CORO_USE_VALGRIND |
684 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
908 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
685 | #endif |
909 | #endif |
686 | |
910 | |
687 | #if HAVE_MMAP |
911 | #if HAVE_MMAP |
688 | if (cctx->ssize > 0) |
912 | if (cctx->flags & CC_MAPPED) |
689 | munmap (cctx->sptr, cctx->ssize); |
913 | munmap (cctx->sptr, cctx->ssize); |
690 | else |
914 | else |
691 | #endif |
915 | #endif |
692 | Safefree (cctx->sptr); |
916 | Safefree (cctx->sptr); |
693 | |
917 | |
694 | Safefree (cctx); |
918 | Safefree (cctx); |
695 | } |
919 | } |
696 | |
920 | |
697 | static coro_cctx * |
921 | static coro_cctx * |
698 | cctx_get () |
922 | cctx_get (pTHX) |
699 | { |
923 | { |
700 | coro_cctx *cctx; |
|
|
701 | |
|
|
702 | if (cctx_first) |
924 | while (cctx_first) |
703 | { |
925 | { |
704 | cctx = cctx_first; |
926 | coro_cctx *cctx = cctx_first; |
705 | cctx_first = cctx->next; |
927 | cctx_first = cctx->next; |
706 | --cctx_idle; |
928 | --cctx_idle; |
707 | } |
929 | |
708 | else |
930 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
709 | { |
931 | return cctx; |
710 | cctx = cctx_new (); |
932 | |
711 | PL_op = PL_op->op_next; |
933 | cctx_destroy (cctx); |
712 | } |
934 | } |
713 | |
935 | |
714 | return cctx; |
936 | return cctx_new (); |
715 | } |
937 | } |
716 | |
938 | |
717 | static void |
939 | static void |
718 | cctx_put (coro_cctx *cctx) |
940 | cctx_put (coro_cctx *cctx) |
719 | { |
941 | { |
… | |
… | |
722 | { |
944 | { |
723 | coro_cctx *first = cctx_first; |
945 | coro_cctx *first = cctx_first; |
724 | cctx_first = first->next; |
946 | cctx_first = first->next; |
725 | --cctx_idle; |
947 | --cctx_idle; |
726 | |
948 | |
727 | assert (!first->inuse); |
|
|
728 | cctx_destroy (first); |
949 | cctx_destroy (first); |
729 | } |
950 | } |
730 | |
951 | |
731 | ++cctx_idle; |
952 | ++cctx_idle; |
732 | cctx->next = cctx_first; |
953 | cctx->next = cctx_first; |
733 | cctx_first = cctx; |
954 | cctx_first = cctx; |
734 | } |
955 | } |
735 | |
956 | |
736 | /** coroutine switching *****************************************************/ |
957 | /** coroutine switching *****************************************************/ |
737 | |
958 | |
738 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
739 | static void NOINLINE |
959 | static void NOINLINE |
|
|
960 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
961 | { |
|
|
962 | if (prev != next) |
|
|
963 | { |
|
|
964 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
|
|
965 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
966 | |
|
|
967 | if (next->flags & CF_RUNNING) |
|
|
968 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
969 | |
|
|
970 | if (next->flags & CF_DESTROYED) |
|
|
971 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
972 | |
|
|
973 | if (PL_lex_state != LEX_NOTPARSING) |
|
|
974 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
975 | } |
|
|
976 | } |
|
|
977 | |
|
|
978 | /* always use the TRANSFER macro */ |
|
|
979 | static void NOINLINE |
740 | transfer (struct coro *prev, struct coro *next) |
980 | transfer (pTHX_ struct coro *prev, struct coro *next) |
741 | { |
981 | { |
742 | dSTACKLEVEL; |
982 | dSTACKLEVEL; |
743 | |
983 | |
744 | /* sometimes transfer is only called to set idle_sp */ |
984 | /* sometimes transfer is only called to set idle_sp */ |
745 | if (!next) |
985 | if (!next) |
… | |
… | |
753 | |
993 | |
754 | if (prev->flags & CF_NEW) |
994 | if (prev->flags & CF_NEW) |
755 | { |
995 | { |
756 | /* create a new empty context */ |
996 | /* create a new empty context */ |
757 | Newz (0, prev->cctx, 1, coro_cctx); |
997 | Newz (0, prev->cctx, 1, coro_cctx); |
758 | prev->cctx->inuse = 1; |
|
|
759 | prev->flags &= ~CF_NEW; |
998 | prev->flags &= ~CF_NEW; |
760 | prev->flags |= CF_RUNNING; |
999 | prev->flags |= CF_RUNNING; |
761 | } |
1000 | } |
762 | |
|
|
763 | /*TODO: must not croak here */ |
|
|
764 | if (!prev->flags & CF_RUNNING) |
|
|
765 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
766 | |
|
|
767 | if (next->flags & CF_RUNNING) |
|
|
768 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
769 | |
|
|
770 | if (next->flags & CF_DESTROYED) |
|
|
771 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
772 | |
1001 | |
773 | prev->flags &= ~CF_RUNNING; |
1002 | prev->flags &= ~CF_RUNNING; |
774 | next->flags |= CF_RUNNING; |
1003 | next->flags |= CF_RUNNING; |
775 | |
1004 | |
776 | LOCK; |
1005 | LOCK; |
… | |
… | |
778 | if (next->flags & CF_NEW) |
1007 | if (next->flags & CF_NEW) |
779 | { |
1008 | { |
780 | /* need to start coroutine */ |
1009 | /* need to start coroutine */ |
781 | next->flags &= ~CF_NEW; |
1010 | next->flags &= ~CF_NEW; |
782 | /* first get rid of the old state */ |
1011 | /* first get rid of the old state */ |
783 | save_perl (prev); |
1012 | save_perl (aTHX_ prev); |
784 | /* setup coroutine call */ |
1013 | /* setup coroutine call */ |
785 | setup_coro (next); |
1014 | setup_coro (aTHX_ next); |
786 | /* need a new stack */ |
|
|
787 | assert (!next->cctx); |
|
|
788 | } |
1015 | } |
789 | else |
1016 | else |
790 | { |
1017 | { |
791 | /* coroutine already started */ |
1018 | /* coroutine already started */ |
792 | save_perl (prev); |
1019 | save_perl (aTHX_ prev); |
793 | load_perl (next); |
1020 | load_perl (aTHX_ next); |
794 | } |
1021 | } |
795 | |
1022 | |
796 | prev__cctx = prev->cctx; |
1023 | prev__cctx = prev->cctx; |
797 | |
1024 | |
798 | /* possibly "free" the cctx */ |
1025 | /* possibly "free" the cctx */ |
799 | if (prev__cctx->idle_sp == STACKLEVEL) |
1026 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
800 | { |
1027 | { |
801 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1028 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
802 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1029 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
803 | |
1030 | |
804 | prev->cctx = 0; |
1031 | prev->cctx = 0; |
805 | |
1032 | |
806 | cctx_put (prev__cctx); |
1033 | cctx_put (prev__cctx); |
807 | prev__cctx->inuse = 0; |
|
|
808 | } |
1034 | } |
809 | |
1035 | |
|
|
1036 | ++next->usecount; |
|
|
1037 | |
810 | if (!next->cctx) |
1038 | if (!next->cctx) |
811 | { |
|
|
812 | next->cctx = cctx_get (); |
1039 | next->cctx = cctx_get (aTHX); |
813 | assert (!next->cctx->inuse); |
|
|
814 | next->cctx->inuse = 1; |
|
|
815 | } |
|
|
816 | |
1040 | |
817 | if (prev__cctx != next->cctx) |
1041 | if (prev__cctx != next->cctx) |
818 | { |
1042 | { |
819 | prev__cctx->top_env = PL_top_env; |
1043 | prev__cctx->top_env = PL_top_env; |
820 | PL_top_env = next->cctx->top_env; |
1044 | PL_top_env = next->cctx->top_env; |
821 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1045 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
822 | } |
1046 | } |
823 | |
1047 | |
824 | free_coro_mortal (); |
1048 | free_coro_mortal (aTHX); |
825 | UNLOCK; |
1049 | UNLOCK; |
826 | } |
1050 | } |
827 | } |
1051 | } |
828 | |
1052 | |
829 | struct transfer_args |
1053 | struct transfer_args |
830 | { |
1054 | { |
831 | struct coro *prev, *next; |
1055 | struct coro *prev, *next; |
832 | }; |
1056 | }; |
833 | |
1057 | |
834 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1058 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1059 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
835 | |
1060 | |
836 | /** high level stuff ********************************************************/ |
1061 | /** high level stuff ********************************************************/ |
837 | |
1062 | |
838 | static int |
1063 | static int |
839 | coro_state_destroy (struct coro *coro) |
1064 | coro_state_destroy (pTHX_ struct coro *coro) |
840 | { |
1065 | { |
841 | if (coro->flags & CF_DESTROYED) |
1066 | if (coro->flags & CF_DESTROYED) |
842 | return 0; |
1067 | return 0; |
843 | |
1068 | |
844 | coro->flags |= CF_DESTROYED; |
1069 | coro->flags |= CF_DESTROYED; |
… | |
… | |
856 | |
1081 | |
857 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1082 | if (coro->mainstack && coro->mainstack != main_mainstack) |
858 | { |
1083 | { |
859 | struct coro temp; |
1084 | struct coro temp; |
860 | |
1085 | |
861 | assert (!(coro->flags & CF_RUNNING)); |
1086 | if (coro->flags & CF_RUNNING) |
|
|
1087 | croak ("FATAL: tried to destroy currently running coroutine"); |
862 | |
1088 | |
863 | Zero (&temp, 1, struct coro); |
1089 | Zero (&temp, 1, struct coro); |
864 | temp.save = CORO_SAVE_ALL; |
1090 | temp.save = CORO_SAVE_ALL; |
865 | |
1091 | |
866 | if (coro->flags & CF_RUNNING) |
|
|
867 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
868 | |
|
|
869 | save_perl (&temp); |
1092 | save_perl (aTHX_ &temp); |
870 | load_perl (coro); |
1093 | load_perl (aTHX_ coro); |
871 | |
1094 | |
872 | coro_destroy_stacks (); |
1095 | coro_destroy_stacks (aTHX); |
873 | |
1096 | |
874 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
1097 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
875 | |
1098 | |
876 | coro->mainstack = 0; |
1099 | coro->mainstack = 0; |
877 | } |
1100 | } |
878 | |
1101 | |
879 | cctx_destroy (coro->cctx); |
1102 | cctx_destroy (coro->cctx); |
880 | SvREFCNT_dec (coro->args); |
1103 | SvREFCNT_dec (coro->args); |
881 | |
1104 | |
|
|
1105 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1106 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1107 | if (coro == coro_first) coro_first = coro->next; |
|
|
1108 | |
882 | return 1; |
1109 | return 1; |
883 | } |
1110 | } |
884 | |
1111 | |
885 | static int |
1112 | static int |
886 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1113 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
887 | { |
1114 | { |
888 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1115 | struct coro *coro = (struct coro *)mg->mg_ptr; |
889 | mg->mg_ptr = 0; |
1116 | mg->mg_ptr = 0; |
890 | |
1117 | |
|
|
1118 | coro->hv = 0; |
|
|
1119 | |
891 | if (--coro->refcnt < 0) |
1120 | if (--coro->refcnt < 0) |
892 | { |
1121 | { |
893 | coro_state_destroy (coro); |
1122 | coro_state_destroy (aTHX_ coro); |
894 | Safefree (coro); |
1123 | Safefree (coro); |
895 | } |
1124 | } |
896 | |
1125 | |
897 | return 0; |
1126 | return 0; |
898 | } |
1127 | } |
… | |
… | |
916 | #else |
1145 | #else |
917 | # define MGf_DUP 0 |
1146 | # define MGf_DUP 0 |
918 | #endif |
1147 | #endif |
919 | }; |
1148 | }; |
920 | |
1149 | |
921 | static struct coro * |
|
|
922 | SvSTATE (SV *coro) |
|
|
923 | { |
|
|
924 | HV *stash; |
|
|
925 | MAGIC *mg; |
|
|
926 | |
|
|
927 | if (SvROK (coro)) |
|
|
928 | coro = SvRV (coro); |
|
|
929 | |
|
|
930 | stash = SvSTASH (coro); |
|
|
931 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
932 | { |
|
|
933 | /* very slow, but rare, check */ |
|
|
934 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
935 | croak ("Coro::State object required"); |
|
|
936 | } |
|
|
937 | |
|
|
938 | mg = SvMAGIC (coro); |
|
|
939 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
940 | return (struct coro *)mg->mg_ptr; |
|
|
941 | } |
|
|
942 | |
|
|
943 | static void |
1150 | static void |
944 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1151 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
945 | { |
1152 | { |
946 | ta->prev = SvSTATE (prev_sv); |
1153 | ta->prev = SvSTATE (prev_sv); |
947 | ta->next = SvSTATE (next_sv); |
1154 | ta->next = SvSTATE (next_sv); |
|
|
1155 | TRANSFER_CHECK (*ta); |
948 | } |
1156 | } |
949 | |
1157 | |
950 | static void |
1158 | static void |
951 | api_transfer (SV *prev_sv, SV *next_sv) |
1159 | api_transfer (SV *prev_sv, SV *next_sv) |
952 | { |
1160 | { |
|
|
1161 | dTHX; |
953 | struct transfer_args ta; |
1162 | struct transfer_args ta; |
954 | |
1163 | |
955 | prepare_transfer (&ta, prev_sv, next_sv); |
1164 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
956 | TRANSFER (ta); |
1165 | TRANSFER (ta); |
957 | } |
1166 | } |
958 | |
1167 | |
959 | static int |
1168 | static int |
960 | api_save (SV *coro_sv, int new_save) |
1169 | api_save (SV *coro_sv, int new_save) |
961 | { |
1170 | { |
|
|
1171 | dTHX; |
962 | struct coro *coro = SvSTATE (coro_sv); |
1172 | struct coro *coro = SvSTATE (coro_sv); |
963 | int old_save = coro->save; |
1173 | int old_save = coro->save; |
964 | |
1174 | |
965 | if (new_save >= 0) |
1175 | if (new_save >= 0) |
966 | coro->save = new_save; |
1176 | coro->save = new_save; |
… | |
… | |
969 | } |
1179 | } |
970 | |
1180 | |
971 | /** Coro ********************************************************************/ |
1181 | /** Coro ********************************************************************/ |
972 | |
1182 | |
973 | static void |
1183 | static void |
974 | coro_enq (SV *coro_sv) |
1184 | coro_enq (pTHX_ SV *coro_sv) |
975 | { |
1185 | { |
976 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1186 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
977 | } |
1187 | } |
978 | |
1188 | |
979 | static SV * |
1189 | static SV * |
980 | coro_deq (int min_prio) |
1190 | coro_deq (pTHX_ int min_prio) |
981 | { |
1191 | { |
982 | int prio = PRIO_MAX - PRIO_MIN; |
1192 | int prio = PRIO_MAX - PRIO_MIN; |
983 | |
1193 | |
984 | min_prio -= PRIO_MIN; |
1194 | min_prio -= PRIO_MIN; |
985 | if (min_prio < 0) |
1195 | if (min_prio < 0) |
… | |
… | |
993 | } |
1203 | } |
994 | |
1204 | |
995 | static int |
1205 | static int |
996 | api_ready (SV *coro_sv) |
1206 | api_ready (SV *coro_sv) |
997 | { |
1207 | { |
|
|
1208 | dTHX; |
998 | struct coro *coro; |
1209 | struct coro *coro; |
999 | |
1210 | |
1000 | if (SvROK (coro_sv)) |
1211 | if (SvROK (coro_sv)) |
1001 | coro_sv = SvRV (coro_sv); |
1212 | coro_sv = SvRV (coro_sv); |
1002 | |
1213 | |
… | |
… | |
1006 | return 0; |
1217 | return 0; |
1007 | |
1218 | |
1008 | coro->flags |= CF_READY; |
1219 | coro->flags |= CF_READY; |
1009 | |
1220 | |
1010 | LOCK; |
1221 | LOCK; |
1011 | coro_enq (SvREFCNT_inc (coro_sv)); |
1222 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1012 | ++coro_nready; |
1223 | ++coro_nready; |
1013 | UNLOCK; |
1224 | UNLOCK; |
1014 | |
1225 | |
1015 | return 1; |
1226 | return 1; |
1016 | } |
1227 | } |
1017 | |
1228 | |
1018 | static int |
1229 | static int |
1019 | api_is_ready (SV *coro_sv) |
1230 | api_is_ready (SV *coro_sv) |
1020 | { |
1231 | { |
|
|
1232 | dTHX; |
1021 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1233 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1022 | } |
1234 | } |
1023 | |
1235 | |
1024 | static void |
1236 | static void |
1025 | prepare_schedule (struct transfer_args *ta) |
1237 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1026 | { |
1238 | { |
1027 | SV *prev_sv, *next_sv; |
1239 | SV *prev_sv, *next_sv; |
1028 | |
1240 | |
1029 | for (;;) |
1241 | for (;;) |
1030 | { |
1242 | { |
1031 | LOCK; |
1243 | LOCK; |
1032 | next_sv = coro_deq (PRIO_MIN); |
1244 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1033 | |
1245 | |
1034 | /* nothing to schedule: call the idle handler */ |
1246 | /* nothing to schedule: call the idle handler */ |
1035 | if (!next_sv) |
1247 | if (!next_sv) |
1036 | { |
1248 | { |
1037 | dSP; |
1249 | dSP; |
… | |
… | |
1065 | break; |
1277 | break; |
1066 | } |
1278 | } |
1067 | |
1279 | |
1068 | /* free this only after the transfer */ |
1280 | /* free this only after the transfer */ |
1069 | prev_sv = SvRV (coro_current); |
1281 | prev_sv = SvRV (coro_current); |
1070 | SvRV_set (coro_current, next_sv); |
|
|
1071 | ta->prev = SvSTATE (prev_sv); |
1282 | ta->prev = SvSTATE (prev_sv); |
1072 | |
1283 | TRANSFER_CHECK (*ta); |
1073 | assert (ta->next->flags & CF_READY); |
1284 | assert (ta->next->flags & CF_READY); |
1074 | ta->next->flags &= ~CF_READY; |
1285 | ta->next->flags &= ~CF_READY; |
|
|
1286 | SvRV_set (coro_current, next_sv); |
1075 | |
1287 | |
1076 | LOCK; |
1288 | LOCK; |
1077 | free_coro_mortal (); |
1289 | free_coro_mortal (aTHX); |
1078 | coro_mortal = prev_sv; |
1290 | coro_mortal = prev_sv; |
1079 | UNLOCK; |
1291 | UNLOCK; |
1080 | } |
1292 | } |
1081 | |
1293 | |
1082 | static void |
1294 | static void |
1083 | prepare_cede (struct transfer_args *ta) |
1295 | prepare_cede (pTHX_ struct transfer_args *ta) |
1084 | { |
1296 | { |
1085 | api_ready (coro_current); |
1297 | api_ready (coro_current); |
1086 | prepare_schedule (ta); |
1298 | prepare_schedule (aTHX_ ta); |
1087 | } |
1299 | } |
1088 | |
1300 | |
1089 | static int |
1301 | static int |
1090 | prepare_cede_notself (struct transfer_args *ta) |
1302 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1091 | { |
1303 | { |
1092 | if (coro_nready) |
1304 | if (coro_nready) |
1093 | { |
1305 | { |
1094 | SV *prev = SvRV (coro_current); |
1306 | SV *prev = SvRV (coro_current); |
1095 | prepare_schedule (ta); |
1307 | prepare_schedule (aTHX_ ta); |
1096 | api_ready (prev); |
1308 | api_ready (prev); |
1097 | return 1; |
1309 | return 1; |
1098 | } |
1310 | } |
1099 | else |
1311 | else |
1100 | return 0; |
1312 | return 0; |
1101 | } |
1313 | } |
1102 | |
1314 | |
1103 | static void |
1315 | static void |
1104 | api_schedule (void) |
1316 | api_schedule (void) |
1105 | { |
1317 | { |
|
|
1318 | dTHX; |
1106 | struct transfer_args ta; |
1319 | struct transfer_args ta; |
1107 | |
1320 | |
1108 | prepare_schedule (&ta); |
1321 | prepare_schedule (aTHX_ &ta); |
1109 | TRANSFER (ta); |
1322 | TRANSFER (ta); |
1110 | } |
1323 | } |
1111 | |
1324 | |
1112 | static int |
1325 | static int |
1113 | api_cede (void) |
1326 | api_cede (void) |
1114 | { |
1327 | { |
|
|
1328 | dTHX; |
1115 | struct transfer_args ta; |
1329 | struct transfer_args ta; |
1116 | |
1330 | |
1117 | prepare_cede (&ta); |
1331 | prepare_cede (aTHX_ &ta); |
1118 | |
1332 | |
1119 | if (ta.prev != ta.next) |
1333 | if (ta.prev != ta.next) |
1120 | { |
1334 | { |
1121 | TRANSFER (ta); |
1335 | TRANSFER (ta); |
1122 | return 1; |
1336 | return 1; |
… | |
… | |
1126 | } |
1340 | } |
1127 | |
1341 | |
1128 | static int |
1342 | static int |
1129 | api_cede_notself (void) |
1343 | api_cede_notself (void) |
1130 | { |
1344 | { |
|
|
1345 | dTHX; |
1131 | struct transfer_args ta; |
1346 | struct transfer_args ta; |
1132 | |
1347 | |
1133 | if (prepare_cede_notself (&ta)) |
1348 | if (prepare_cede_notself (aTHX_ &ta)) |
1134 | { |
1349 | { |
1135 | TRANSFER (ta); |
1350 | TRANSFER (ta); |
1136 | return 1; |
1351 | return 1; |
1137 | } |
1352 | } |
1138 | else |
1353 | else |
1139 | return 0; |
1354 | return 0; |
1140 | } |
1355 | } |
1141 | |
1356 | |
|
|
1357 | static void |
|
|
1358 | api_trace (SV *coro_sv, int flags) |
|
|
1359 | { |
|
|
1360 | dTHX; |
|
|
1361 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1362 | |
|
|
1363 | if (flags & CC_TRACE) |
|
|
1364 | { |
|
|
1365 | if (!coro->cctx) |
|
|
1366 | coro->cctx = cctx_new (); |
|
|
1367 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1368 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1369 | |
|
|
1370 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1371 | } |
|
|
1372 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1373 | { |
|
|
1374 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1375 | |
|
|
1376 | if (coro->flags & CF_RUNNING) |
|
|
1377 | PL_runops = RUNOPS_DEFAULT; |
|
|
1378 | else |
|
|
1379 | coro->runops = RUNOPS_DEFAULT; |
|
|
1380 | } |
|
|
1381 | } |
|
|
1382 | |
1142 | MODULE = Coro::State PACKAGE = Coro::State |
1383 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1143 | |
1384 | |
1144 | PROTOTYPES: DISABLE |
1385 | PROTOTYPES: DISABLE |
1145 | |
1386 | |
1146 | BOOT: |
1387 | BOOT: |
1147 | { |
1388 | { |
… | |
… | |
1149 | MUTEX_INIT (&coro_mutex); |
1390 | MUTEX_INIT (&coro_mutex); |
1150 | #endif |
1391 | #endif |
1151 | BOOT_PAGESIZE; |
1392 | BOOT_PAGESIZE; |
1152 | |
1393 | |
1153 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1394 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
|
|
1395 | |
|
|
1396 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1397 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
|
|
1398 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1399 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1154 | |
1400 | |
1155 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1401 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1156 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1402 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1157 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
1403 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
1158 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
1404 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1405 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1406 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
1159 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1407 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1160 | |
1408 | |
1161 | main_mainstack = PL_mainstack; |
1409 | main_mainstack = PL_mainstack; |
|
|
1410 | main_top_env = PL_top_env; |
|
|
1411 | |
|
|
1412 | while (main_top_env->je_prev) |
|
|
1413 | main_top_env = main_top_env->je_prev; |
1162 | |
1414 | |
1163 | coroapi.ver = CORO_API_VERSION; |
1415 | coroapi.ver = CORO_API_VERSION; |
1164 | coroapi.transfer = api_transfer; |
1416 | coroapi.transfer = api_transfer; |
1165 | |
1417 | |
1166 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1418 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1174 | HV *hv; |
1426 | HV *hv; |
1175 | int i; |
1427 | int i; |
1176 | |
1428 | |
1177 | Newz (0, coro, 1, struct coro); |
1429 | Newz (0, coro, 1, struct coro); |
1178 | coro->args = newAV (); |
1430 | coro->args = newAV (); |
1179 | coro->save = CORO_SAVE_ALL; |
1431 | coro->save = CORO_SAVE_DEF; |
1180 | coro->flags = CF_NEW; |
1432 | coro->flags = CF_NEW; |
1181 | |
1433 | |
|
|
1434 | if (coro_first) coro_first->prev = coro; |
|
|
1435 | coro->next = coro_first; |
|
|
1436 | coro_first = coro; |
|
|
1437 | |
1182 | hv = newHV (); |
1438 | coro->hv = hv = newHV (); |
1183 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1439 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1184 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1440 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1185 | |
1441 | |
1186 | for (i = 1; i < items; i++) |
1442 | for (i = 1; i < items; i++) |
1187 | av_push (coro->args, newSVsv (ST (i))); |
1443 | av_push (coro->args, newSVsv (ST (i))); |
… | |
… | |
1194 | CODE: |
1450 | CODE: |
1195 | RETVAL = api_save (coro, new_save); |
1451 | RETVAL = api_save (coro, new_save); |
1196 | OUTPUT: |
1452 | OUTPUT: |
1197 | RETVAL |
1453 | RETVAL |
1198 | |
1454 | |
|
|
1455 | int |
|
|
1456 | save_also (SV *coro_sv, int save_also) |
|
|
1457 | CODE: |
|
|
1458 | { |
|
|
1459 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1460 | RETVAL = coro->save; |
|
|
1461 | coro->save |= save_also; |
|
|
1462 | } |
|
|
1463 | OUTPUT: |
|
|
1464 | RETVAL |
|
|
1465 | |
|
|
1466 | # these not obviously related functions are all rolled into the same xs |
|
|
1467 | # function to increase chances that they all will call transfer with the same |
|
|
1468 | # stack offset |
1199 | void |
1469 | void |
1200 | _set_stacklevel (...) |
1470 | _set_stacklevel (...) |
1201 | ALIAS: |
1471 | ALIAS: |
1202 | Coro::State::transfer = 1 |
1472 | Coro::State::transfer = 1 |
1203 | Coro::schedule = 2 |
1473 | Coro::schedule = 2 |
… | |
… | |
1216 | |
1486 | |
1217 | case 1: |
1487 | case 1: |
1218 | if (items != 2) |
1488 | if (items != 2) |
1219 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1489 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1220 | |
1490 | |
1221 | prepare_transfer (&ta, ST (0), ST (1)); |
1491 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1222 | break; |
1492 | break; |
1223 | |
1493 | |
1224 | case 2: |
1494 | case 2: |
1225 | prepare_schedule (&ta); |
1495 | prepare_schedule (aTHX_ &ta); |
1226 | break; |
1496 | break; |
1227 | |
1497 | |
1228 | case 3: |
1498 | case 3: |
1229 | prepare_cede (&ta); |
1499 | prepare_cede (aTHX_ &ta); |
1230 | break; |
1500 | break; |
1231 | |
1501 | |
1232 | case 4: |
1502 | case 4: |
1233 | if (!prepare_cede_notself (&ta)) |
1503 | if (!prepare_cede_notself (aTHX_ &ta)) |
1234 | XSRETURN_EMPTY; |
1504 | XSRETURN_EMPTY; |
1235 | |
1505 | |
1236 | break; |
1506 | break; |
1237 | } |
1507 | } |
1238 | |
1508 | |
… | |
… | |
1244 | } |
1514 | } |
1245 | |
1515 | |
1246 | bool |
1516 | bool |
1247 | _destroy (SV *coro_sv) |
1517 | _destroy (SV *coro_sv) |
1248 | CODE: |
1518 | CODE: |
1249 | RETVAL = coro_state_destroy (SvSTATE (coro_sv)); |
1519 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1250 | OUTPUT: |
1520 | OUTPUT: |
1251 | RETVAL |
1521 | RETVAL |
1252 | |
1522 | |
1253 | void |
1523 | void |
1254 | _exit (code) |
1524 | _exit (code) |
… | |
… | |
1256 | PROTOTYPE: $ |
1526 | PROTOTYPE: $ |
1257 | CODE: |
1527 | CODE: |
1258 | _exit (code); |
1528 | _exit (code); |
1259 | |
1529 | |
1260 | int |
1530 | int |
|
|
1531 | cctx_stacksize (int new_stacksize = 0) |
|
|
1532 | CODE: |
|
|
1533 | RETVAL = coro_stacksize; |
|
|
1534 | if (new_stacksize) |
|
|
1535 | coro_stacksize = new_stacksize; |
|
|
1536 | OUTPUT: |
|
|
1537 | RETVAL |
|
|
1538 | |
|
|
1539 | int |
1261 | cctx_count () |
1540 | cctx_count () |
1262 | CODE: |
1541 | CODE: |
1263 | RETVAL = cctx_count; |
1542 | RETVAL = cctx_count; |
1264 | OUTPUT: |
1543 | OUTPUT: |
1265 | RETVAL |
1544 | RETVAL |
… | |
… | |
1269 | CODE: |
1548 | CODE: |
1270 | RETVAL = cctx_idle; |
1549 | RETVAL = cctx_idle; |
1271 | OUTPUT: |
1550 | OUTPUT: |
1272 | RETVAL |
1551 | RETVAL |
1273 | |
1552 | |
|
|
1553 | void |
|
|
1554 | list () |
|
|
1555 | PPCODE: |
|
|
1556 | { |
|
|
1557 | struct coro *coro; |
|
|
1558 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1559 | if (coro->hv) |
|
|
1560 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1561 | } |
|
|
1562 | |
|
|
1563 | void |
|
|
1564 | call (Coro::State coro, SV *coderef) |
|
|
1565 | ALIAS: |
|
|
1566 | eval = 1 |
|
|
1567 | CODE: |
|
|
1568 | { |
|
|
1569 | if (coro->mainstack) |
|
|
1570 | { |
|
|
1571 | struct coro temp; |
|
|
1572 | Zero (&temp, 1, struct coro); |
|
|
1573 | temp.save = CORO_SAVE_ALL; |
|
|
1574 | |
|
|
1575 | if (!(coro->flags & CF_RUNNING)) |
|
|
1576 | { |
|
|
1577 | save_perl (aTHX_ &temp); |
|
|
1578 | load_perl (aTHX_ coro); |
|
|
1579 | } |
|
|
1580 | |
|
|
1581 | { |
|
|
1582 | dSP; |
|
|
1583 | ENTER; |
|
|
1584 | SAVETMPS; |
|
|
1585 | PUSHMARK (SP); |
|
|
1586 | PUTBACK; |
|
|
1587 | if (ix) |
|
|
1588 | eval_sv (coderef, 0); |
|
|
1589 | else |
|
|
1590 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1591 | SPAGAIN; |
|
|
1592 | FREETMPS; |
|
|
1593 | LEAVE; |
|
|
1594 | PUTBACK; |
|
|
1595 | } |
|
|
1596 | |
|
|
1597 | if (!(coro->flags & CF_RUNNING)) |
|
|
1598 | { |
|
|
1599 | save_perl (aTHX_ coro); |
|
|
1600 | load_perl (aTHX_ &temp); |
|
|
1601 | } |
|
|
1602 | } |
|
|
1603 | } |
|
|
1604 | |
|
|
1605 | SV * |
|
|
1606 | is_ready (Coro::State coro) |
|
|
1607 | PROTOTYPE: $ |
|
|
1608 | ALIAS: |
|
|
1609 | is_ready = CF_READY |
|
|
1610 | is_running = CF_RUNNING |
|
|
1611 | is_new = CF_NEW |
|
|
1612 | is_destroyed = CF_DESTROYED |
|
|
1613 | CODE: |
|
|
1614 | RETVAL = boolSV (coro->flags & ix); |
|
|
1615 | OUTPUT: |
|
|
1616 | RETVAL |
|
|
1617 | |
|
|
1618 | void |
|
|
1619 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1620 | |
|
|
1621 | SV * |
|
|
1622 | has_stack (Coro::State coro) |
|
|
1623 | PROTOTYPE: $ |
|
|
1624 | CODE: |
|
|
1625 | RETVAL = boolSV (!!coro->cctx); |
|
|
1626 | OUTPUT: |
|
|
1627 | RETVAL |
|
|
1628 | |
|
|
1629 | int |
|
|
1630 | is_traced (Coro::State coro) |
|
|
1631 | PROTOTYPE: $ |
|
|
1632 | CODE: |
|
|
1633 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1634 | OUTPUT: |
|
|
1635 | RETVAL |
|
|
1636 | |
|
|
1637 | IV |
|
|
1638 | rss (Coro::State coro) |
|
|
1639 | PROTOTYPE: $ |
|
|
1640 | ALIAS: |
|
|
1641 | usecount = 1 |
|
|
1642 | CODE: |
|
|
1643 | switch (ix) |
|
|
1644 | { |
|
|
1645 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1646 | case 1: RETVAL = coro->usecount; break; |
|
|
1647 | } |
|
|
1648 | OUTPUT: |
|
|
1649 | RETVAL |
|
|
1650 | |
|
|
1651 | |
1274 | MODULE = Coro::State PACKAGE = Coro |
1652 | MODULE = Coro::State PACKAGE = Coro |
1275 | |
1653 | |
1276 | BOOT: |
1654 | BOOT: |
1277 | { |
1655 | { |
1278 | int i; |
1656 | int i; |
|
|
1657 | |
|
|
1658 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1659 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1660 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1661 | |
|
|
1662 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1663 | SvREADONLY_on (coro_current); |
1279 | |
1664 | |
1280 | coro_stash = gv_stashpv ("Coro", TRUE); |
1665 | coro_stash = gv_stashpv ("Coro", TRUE); |
1281 | |
1666 | |
1282 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1667 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1283 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1668 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1284 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1669 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1285 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1670 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1286 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1671 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1287 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1672 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1288 | |
|
|
1289 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1290 | SvREADONLY_on (coro_current); |
|
|
1291 | |
1673 | |
1292 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1674 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1293 | coro_ready[i] = newAV (); |
1675 | coro_ready[i] = newAV (); |
1294 | |
1676 | |
1295 | { |
1677 | { |
… | |
… | |
1345 | CODE: |
1727 | CODE: |
1346 | RETVAL = boolSV (api_ready (self)); |
1728 | RETVAL = boolSV (api_ready (self)); |
1347 | OUTPUT: |
1729 | OUTPUT: |
1348 | RETVAL |
1730 | RETVAL |
1349 | |
1731 | |
1350 | SV * |
|
|
1351 | is_ready (SV *self) |
|
|
1352 | PROTOTYPE: $ |
|
|
1353 | CODE: |
|
|
1354 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1355 | OUTPUT: |
|
|
1356 | RETVAL |
|
|
1357 | |
|
|
1358 | int |
1732 | int |
1359 | nready (...) |
1733 | nready (...) |
1360 | PROTOTYPE: |
1734 | PROTOTYPE: |
1361 | CODE: |
1735 | CODE: |
1362 | RETVAL = coro_nready; |
1736 | RETVAL = coro_nready; |
1363 | OUTPUT: |
1737 | OUTPUT: |
1364 | RETVAL |
1738 | RETVAL |
1365 | |
1739 | |
|
|
1740 | # for async_pool speedup |
|
|
1741 | void |
|
|
1742 | _pool_1 (SV *cb) |
|
|
1743 | CODE: |
|
|
1744 | { |
|
|
1745 | int i, len; |
|
|
1746 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1747 | AV *defav = GvAV (PL_defgv); |
|
|
1748 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1749 | AV *invoke_av; |
|
|
1750 | |
|
|
1751 | if (!invoke) |
|
|
1752 | croak ("\3terminate\2\n"); |
|
|
1753 | |
|
|
1754 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1755 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1756 | |
|
|
1757 | invoke_av = (AV *)SvRV (invoke); |
|
|
1758 | len = av_len (invoke_av); |
|
|
1759 | |
|
|
1760 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1761 | |
|
|
1762 | if (len > 0) |
|
|
1763 | { |
|
|
1764 | av_fill (defav, len - 1); |
|
|
1765 | for (i = 0; i < len; ++i) |
|
|
1766 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1767 | } |
|
|
1768 | |
|
|
1769 | SvREFCNT_dec (invoke); |
|
|
1770 | } |
|
|
1771 | |
|
|
1772 | void |
|
|
1773 | _pool_2 (SV *cb) |
|
|
1774 | CODE: |
|
|
1775 | { |
|
|
1776 | struct coro *coro = SvSTATE (coro_current); |
|
|
1777 | |
|
|
1778 | sv_setsv (cb, &PL_sv_undef); |
|
|
1779 | |
|
|
1780 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1781 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1782 | croak ("\3terminate\2\n"); |
|
|
1783 | |
|
|
1784 | av_clear (GvAV (PL_defgv)); |
|
|
1785 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1786 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1787 | |
|
|
1788 | coro->save = CORO_SAVE_DEF; |
|
|
1789 | coro->prio = 0; |
|
|
1790 | |
|
|
1791 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1792 | api_trace (coro_current, 0); |
|
|
1793 | |
|
|
1794 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | |
1366 | MODULE = Coro::State PACKAGE = Coro::AIO |
1798 | MODULE = Coro::State PACKAGE = Coro::AIO |
1367 | |
1799 | |
1368 | SV * |
1800 | SV * |
1369 | _get_state () |
1801 | _get_state () |
1370 | CODE: |
1802 | CODE: |