1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
2 | |
2 | |
3 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
4 | |
5 | |
5 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #include "perl.h" |
7 | #include "XSUB.h" |
8 | #include "XSUB.h" |
8 | |
9 | |
9 | #include "patchlevel.h" |
10 | #include "patchlevel.h" |
10 | |
11 | |
11 | #include <stdio.h> |
12 | #include <stdio.h> |
12 | #include <errno.h> |
13 | #include <errno.h> |
13 | #include <assert.h> |
14 | #include <assert.h> |
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15 | #include <inttypes.h> /* portable stdint.h */ |
14 | |
16 | |
15 | #ifdef HAVE_MMAP |
17 | #ifdef HAVE_MMAP |
16 | # include <unistd.h> |
18 | # include <unistd.h> |
17 | # include <sys/mman.h> |
19 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
20 | # ifndef MAP_ANONYMOUS |
… | |
… | |
70 | # ifndef IS_PADCONST |
72 | # ifndef IS_PADCONST |
71 | # define IS_PADCONST(v) 0 |
73 | # define IS_PADCONST(v) 0 |
72 | # endif |
74 | # endif |
73 | #endif |
75 | #endif |
74 | |
76 | |
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77 | /* 5.8.8 */ |
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78 | #ifndef GV_NOTQUAL |
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79 | # define GV_NOTQUAL 0 |
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80 | #endif |
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81 | #ifndef newSV |
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82 | # define newSV(l) NEWSV(0,l) |
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83 | #endif |
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84 | |
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85 | /* 5.11 */ |
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86 | #ifndef CxHASARGS |
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87 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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88 | #endif |
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89 | |
75 | /* 5.8.7 */ |
90 | /* 5.8.7 */ |
76 | #ifndef SvRV_set |
91 | #ifndef SvRV_set |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
92 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | #endif |
93 | #endif |
79 | |
94 | |
… | |
… | |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
113 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
99 | |
114 | |
100 | #if __GNUC__ >= 3 |
115 | #if __GNUC__ >= 3 |
101 | # define attribute(x) __attribute__(x) |
116 | # define attribute(x) __attribute__(x) |
102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
117 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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118 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
103 | #else |
119 | #else |
104 | # define attribute(x) |
120 | # define attribute(x) |
105 | # define BARRIER |
121 | # define BARRIER |
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122 | # define expect(expr,value) (expr) |
106 | #endif |
123 | #endif |
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124 | |
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125 | #define expect_false(expr) expect ((expr) != 0, 0) |
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126 | #define expect_true(expr) expect ((expr) != 0, 1) |
107 | |
127 | |
108 | #define NOINLINE attribute ((noinline)) |
128 | #define NOINLINE attribute ((noinline)) |
109 | |
129 | |
110 | #include "CoroAPI.h" |
130 | #include "CoroAPI.h" |
111 | |
131 | |
… | |
… | |
130 | static size_t coro_stacksize = CORO_STACKSIZE; |
150 | static size_t coro_stacksize = CORO_STACKSIZE; |
131 | static struct CoroAPI coroapi; |
151 | static struct CoroAPI coroapi; |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
152 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static JMPENV *main_top_env; |
153 | static JMPENV *main_top_env; |
134 | static HV *coro_state_stash, *coro_stash; |
154 | static HV *coro_state_stash, *coro_stash; |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
155 | static volatile SV *coro_mortal; /* will be freed after next transfer */ |
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156 | |
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157 | static GV *irsgv; /* $/ */ |
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158 | static GV *stdoutgv; /* *STDOUT */ |
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159 | static SV *rv_diehook; |
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160 | static SV *rv_warnhook; |
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161 | static HV *hv_sig; /* %SIG */ |
136 | |
162 | |
137 | /* async_pool helper stuff */ |
163 | /* async_pool helper stuff */ |
138 | static SV *sv_pool_rss; |
164 | static SV *sv_pool_rss; |
139 | static SV *sv_pool_size; |
165 | static SV *sv_pool_size; |
140 | static AV *av_async_pool; |
166 | static AV *av_async_pool; |
… | |
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176 | CF_READY = 0x0002, /* coroutine is ready */ |
202 | CF_READY = 0x0002, /* coroutine is ready */ |
177 | CF_NEW = 0x0004, /* has never been switched to */ |
203 | CF_NEW = 0x0004, /* has never been switched to */ |
178 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
204 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
179 | }; |
205 | }; |
180 | |
206 | |
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207 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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208 | typedef struct { |
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209 | SV *defsv; |
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210 | AV *defav; |
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211 | SV *errsv; |
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212 | SV *irsgv; |
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213 | #define VAR(name,type) type name; |
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214 | # include "state.h" |
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215 | #undef VAR |
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216 | } perl_slots; |
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217 | |
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218 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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219 | |
181 | /* this is a structure representing a perl-level coroutine */ |
220 | /* this is a structure representing a perl-level coroutine */ |
182 | struct coro { |
221 | struct coro { |
183 | /* the c coroutine allocated to this perl coroutine, if any */ |
222 | /* the c coroutine allocated to this perl coroutine, if any */ |
184 | coro_cctx *cctx; |
223 | coro_cctx *cctx; |
185 | |
224 | |
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225 | /* process data */ |
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226 | AV *mainstack; |
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227 | perl_slots *slot; /* basically the saved sp */ |
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228 | |
186 | /* data associated with this coroutine (initial args) */ |
229 | AV *args; /* data associated with this coroutine (initial args) */ |
187 | AV *args; |
230 | int refcnt; /* coroutines are refcounted, yes */ |
188 | int refcnt; |
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189 | int save; /* CORO_SAVE flags */ |
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190 | int flags; /* CF_ flags */ |
231 | int flags; /* CF_ flags */ |
191 | |
232 | HV *hv; /* the perl hash associated with this coro, if any */ |
192 | /* optionally saved, might be zero */ |
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193 | AV *defav; /* @_ */ |
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194 | SV *defsv; /* $_ */ |
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195 | SV *errsv; /* $@ */ |
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196 | GV *deffh; /* default filehandle */ |
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197 | SV *irssv; /* $/ */ |
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198 | SV *irssv_sv; /* real $/ cache */ |
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199 | |
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200 | #define VAR(name,type) type name; |
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201 | # include "state.h" |
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202 | #undef VAR |
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203 | |
233 | |
204 | /* statistics */ |
234 | /* statistics */ |
205 | int usecount; /* number of switches to this coro */ |
235 | int usecount; /* number of transfers to this coro */ |
206 | |
236 | |
207 | /* coro process data */ |
237 | /* coro process data */ |
208 | int prio; |
238 | int prio; |
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239 | SV *throw; /* exception to be thrown */ |
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240 | |
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241 | /* async_pool */ |
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242 | SV *saved_deffh; |
209 | |
243 | |
210 | /* linked list */ |
244 | /* linked list */ |
211 | struct coro *next, *prev; |
245 | struct coro *next, *prev; |
212 | HV *hv; /* the perl hash associated with this coro, if any */ |
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213 | }; |
246 | }; |
214 | |
247 | |
215 | typedef struct coro *Coro__State; |
248 | typedef struct coro *Coro__State; |
216 | typedef struct coro *Coro__State_or_hashref; |
249 | typedef struct coro *Coro__State_or_hashref; |
217 | |
250 | |
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229 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
262 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
230 | static int coro_nready; |
263 | static int coro_nready; |
231 | static struct coro *coro_first; |
264 | static struct coro *coro_first; |
232 | |
265 | |
233 | /** lowlevel stuff **********************************************************/ |
266 | /** lowlevel stuff **********************************************************/ |
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267 | |
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268 | static SV * |
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269 | coro_get_sv (pTHX_ const char *name, int create) |
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270 | { |
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271 | #if PERL_VERSION_ATLEAST (5,9,0) |
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272 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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273 | get_sv (name, create); |
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274 | #endif |
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275 | return get_sv (name, create); |
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276 | } |
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277 | |
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278 | static AV * |
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279 | coro_get_av (pTHX_ const char *name, int create) |
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280 | { |
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281 | #if PERL_VERSION_ATLEAST (5,9,0) |
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282 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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283 | get_av (name, create); |
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284 | #endif |
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285 | return get_av (name, create); |
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286 | } |
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287 | |
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288 | static HV * |
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289 | coro_get_hv (pTHX_ const char *name, int create) |
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290 | { |
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291 | #if PERL_VERSION_ATLEAST (5,9,0) |
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292 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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293 | get_hv (name, create); |
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294 | #endif |
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295 | return get_hv (name, create); |
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296 | } |
234 | |
297 | |
235 | static AV * |
298 | static AV * |
236 | coro_clone_padlist (pTHX_ CV *cv) |
299 | coro_clone_padlist (pTHX_ CV *cv) |
237 | { |
300 | { |
238 | AV *padlist = CvPADLIST (cv); |
301 | AV *padlist = CvPADLIST (cv); |
… | |
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286 | |
349 | |
287 | /* casting is fun. */ |
350 | /* casting is fun. */ |
288 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
351 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
289 | free_padlist (aTHX_ padlist); |
352 | free_padlist (aTHX_ padlist); |
290 | |
353 | |
291 | SvREFCNT_dec (av); |
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292 | |
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293 | return 0; |
354 | return 0; |
294 | } |
355 | } |
295 | |
356 | |
296 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
357 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
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358 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
297 | |
359 | |
298 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
360 | static MGVTBL coro_cv_vtbl = { |
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361 | 0, 0, 0, 0, |
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362 | coro_cv_free |
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363 | }; |
299 | |
364 | |
300 | #define CORO_MAGIC(cv) \ |
365 | #define CORO_MAGIC(sv,type) \ |
301 | SvMAGIC (cv) \ |
366 | SvMAGIC (sv) \ |
302 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
367 | ? SvMAGIC (sv)->mg_type == type \ |
303 | ? SvMAGIC (cv) \ |
368 | ? SvMAGIC (sv) \ |
304 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
369 | : mg_find (sv, type) \ |
305 | : 0 |
370 | : 0 |
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371 | |
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372 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
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373 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
306 | |
374 | |
307 | static struct coro * |
375 | static struct coro * |
308 | SvSTATE_ (pTHX_ SV *coro) |
376 | SvSTATE_ (pTHX_ SV *coro) |
309 | { |
377 | { |
310 | HV *stash; |
378 | HV *stash; |
311 | MAGIC *mg; |
379 | MAGIC *mg; |
312 | |
380 | |
313 | if (SvROK (coro)) |
381 | if (SvROK (coro)) |
314 | coro = SvRV (coro); |
382 | coro = SvRV (coro); |
315 | |
383 | |
316 | if (SvTYPE (coro) != SVt_PVHV) |
384 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
317 | croak ("Coro::State object required"); |
385 | croak ("Coro::State object required"); |
318 | |
386 | |
319 | stash = SvSTASH (coro); |
387 | stash = SvSTASH (coro); |
320 | if (stash != coro_stash && stash != coro_state_stash) |
388 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
321 | { |
389 | { |
322 | /* very slow, but rare, check */ |
390 | /* very slow, but rare, check */ |
323 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
391 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
324 | croak ("Coro::State object required"); |
392 | croak ("Coro::State object required"); |
325 | } |
393 | } |
326 | |
394 | |
327 | mg = CORO_MAGIC (coro); |
395 | mg = CORO_MAGIC_state (coro); |
328 | return (struct coro *)mg->mg_ptr; |
396 | return (struct coro *)mg->mg_ptr; |
329 | } |
397 | } |
330 | |
398 | |
331 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
399 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
332 | |
400 | |
333 | /* the next two functions merely cache the padlists */ |
401 | /* the next two functions merely cache the padlists */ |
334 | static void |
402 | static void |
335 | get_padlist (pTHX_ CV *cv) |
403 | get_padlist (pTHX_ CV *cv) |
336 | { |
404 | { |
337 | MAGIC *mg = CORO_MAGIC (cv); |
405 | MAGIC *mg = CORO_MAGIC_cv (cv); |
338 | AV *av; |
406 | AV *av; |
339 | |
407 | |
340 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
408 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
341 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
409 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
342 | else |
410 | else |
343 | { |
411 | { |
344 | #if CORO_PREFER_PERL_FUNCTIONS |
412 | #if CORO_PREFER_PERL_FUNCTIONS |
345 | /* this is probably cleaner, but also slower? */ |
413 | /* this is probably cleaner, but also slower? */ |
… | |
… | |
354 | } |
422 | } |
355 | |
423 | |
356 | static void |
424 | static void |
357 | put_padlist (pTHX_ CV *cv) |
425 | put_padlist (pTHX_ CV *cv) |
358 | { |
426 | { |
359 | MAGIC *mg = CORO_MAGIC (cv); |
427 | MAGIC *mg = CORO_MAGIC_cv (cv); |
360 | AV *av; |
428 | AV *av; |
361 | |
429 | |
362 | if (!mg) |
430 | if (expect_false (!mg)) |
363 | { |
431 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
364 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
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365 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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366 | mg->mg_virtual = &vtbl_coro; |
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367 | mg->mg_obj = (SV *)newAV (); |
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368 | } |
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369 | |
432 | |
370 | av = (AV *)mg->mg_obj; |
433 | av = (AV *)mg->mg_obj; |
371 | |
434 | |
372 | if (AvFILLp (av) >= AvMAX (av)) |
435 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
373 | av_extend (av, AvMAX (av) + 1); |
436 | av_extend (av, AvMAX (av) + 1); |
374 | |
437 | |
375 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
438 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
376 | } |
439 | } |
377 | |
440 | |
378 | /** load & save, init *******************************************************/ |
441 | /** load & save, init *******************************************************/ |
379 | |
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380 | #define SB do { |
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381 | #define SE } while (0) |
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382 | |
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383 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
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384 | |
442 | |
385 | static void |
443 | static void |
386 | load_perl (pTHX_ Coro__State c) |
444 | load_perl (pTHX_ Coro__State c) |
387 | { |
445 | { |
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446 | perl_slots *slot = c->slot; |
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447 | c->slot = 0; |
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448 | |
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449 | PL_mainstack = c->mainstack; |
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450 | |
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451 | GvSV (PL_defgv) = slot->defsv; |
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452 | GvAV (PL_defgv) = slot->defav; |
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453 | GvSV (PL_errgv) = slot->errsv; |
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454 | GvSV (irsgv) = slot->irsgv; |
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455 | |
388 | #define VAR(name,type) PL_ ## name = c->name; |
456 | #define VAR(name,type) PL_ ## name = slot->name; |
389 | # include "state.h" |
457 | # include "state.h" |
390 | #undef VAR |
458 | #undef VAR |
391 | |
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392 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
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393 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
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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 | |
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397 | if (c->irssv) |
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398 | { |
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399 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
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400 | { |
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401 | SvREFCNT_dec (c->irssv); |
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402 | c->irssv = 0; |
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403 | } |
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404 | else |
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405 | { |
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406 | REPLACE_SV (PL_rs, c->irssv); |
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407 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
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408 | sv_setsv (c->irssv_sv, PL_rs); |
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409 | } |
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410 | } |
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411 | |
459 | |
412 | { |
460 | { |
413 | dSP; |
461 | dSP; |
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462 | |
414 | CV *cv; |
463 | CV *cv; |
415 | |
464 | |
416 | /* now do the ugly restore mess */ |
465 | /* now do the ugly restore mess */ |
417 | while ((cv = (CV *)POPs)) |
466 | while (expect_true (cv = (CV *)POPs)) |
418 | { |
467 | { |
419 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
468 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
420 | CvDEPTH (cv) = PTR2IV (POPs); |
469 | CvDEPTH (cv) = PTR2IV (POPs); |
421 | CvPADLIST (cv) = (AV *)POPs; |
470 | CvPADLIST (cv) = (AV *)POPs; |
422 | } |
471 | } |
… | |
… | |
441 | |
490 | |
442 | XPUSHs (Nullsv); |
491 | XPUSHs (Nullsv); |
443 | /* this loop was inspired by pp_caller */ |
492 | /* this loop was inspired by pp_caller */ |
444 | for (;;) |
493 | for (;;) |
445 | { |
494 | { |
446 | while (cxix >= 0) |
495 | while (expect_true (cxix >= 0)) |
447 | { |
496 | { |
448 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
497 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
449 | |
498 | |
450 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
499 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
451 | { |
500 | { |
452 | CV *cv = cx->blk_sub.cv; |
501 | CV *cv = cx->blk_sub.cv; |
453 | |
502 | |
454 | if (CvDEPTH (cv)) |
503 | if (expect_true (CvDEPTH (cv))) |
455 | { |
504 | { |
456 | EXTEND (SP, 3); |
505 | EXTEND (SP, 3); |
457 | PUSHs ((SV *)CvPADLIST (cv)); |
506 | PUSHs ((SV *)CvPADLIST (cv)); |
458 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
507 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
459 | PUSHs ((SV *)cv); |
508 | PUSHs ((SV *)cv); |
… | |
… | |
462 | get_padlist (aTHX_ cv); |
511 | get_padlist (aTHX_ cv); |
463 | } |
512 | } |
464 | } |
513 | } |
465 | } |
514 | } |
466 | |
515 | |
467 | if (top_si->si_type == PERLSI_MAIN) |
516 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
468 | break; |
517 | break; |
469 | |
518 | |
470 | top_si = top_si->si_prev; |
519 | top_si = top_si->si_prev; |
471 | ccstk = top_si->si_cxstack; |
520 | ccstk = top_si->si_cxstack; |
472 | cxix = top_si->si_cxix; |
521 | cxix = top_si->si_cxix; |
473 | } |
522 | } |
474 | |
523 | |
475 | PUTBACK; |
524 | PUTBACK; |
476 | } |
525 | } |
477 | |
526 | |
478 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
527 | /* allocate some space on the context stack for our purposes */ |
479 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
528 | /* we manually unroll here, as usually 2 slots is enough */ |
480 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
529 | if (SLOT_COUNT >= 1) CXINC; |
481 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
530 | if (SLOT_COUNT >= 2) CXINC; |
482 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
531 | if (SLOT_COUNT >= 3) CXINC; |
|
|
532 | { |
|
|
533 | int i; |
|
|
534 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
535 | CXINC; |
|
|
536 | } |
|
|
537 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
483 | |
538 | |
|
|
539 | c->mainstack = PL_mainstack; |
|
|
540 | |
|
|
541 | { |
|
|
542 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
543 | |
|
|
544 | slot->defav = GvAV (PL_defgv); |
|
|
545 | slot->defsv = DEFSV; |
|
|
546 | slot->errsv = ERRSV; |
|
|
547 | slot->irsgv = GvSV (irsgv); |
|
|
548 | |
484 | #define VAR(name,type)c->name = PL_ ## name; |
549 | #define VAR(name,type) slot->name = PL_ ## name; |
485 | # include "state.h" |
550 | # include "state.h" |
486 | #undef VAR |
551 | #undef VAR |
|
|
552 | } |
487 | } |
553 | } |
488 | |
554 | |
489 | /* |
555 | /* |
490 | * allocate various perl stacks. This is an exact copy |
556 | * allocate various perl stacks. This is an exact copy |
491 | * of perl.c:init_stacks, except that it uses less memory |
557 | * of perl.c:init_stacks, except that it uses less memory |
… | |
… | |
496 | # define coro_init_stacks init_stacks |
562 | # define coro_init_stacks init_stacks |
497 | #else |
563 | #else |
498 | static void |
564 | static void |
499 | coro_init_stacks (pTHX) |
565 | coro_init_stacks (pTHX) |
500 | { |
566 | { |
501 | PL_curstackinfo = new_stackinfo(64, 6); |
567 | PL_curstackinfo = new_stackinfo(32, 8); |
502 | PL_curstackinfo->si_type = PERLSI_MAIN; |
568 | PL_curstackinfo->si_type = PERLSI_MAIN; |
503 | PL_curstack = PL_curstackinfo->si_stack; |
569 | PL_curstack = PL_curstackinfo->si_stack; |
504 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
570 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
505 | |
571 | |
506 | PL_stack_base = AvARRAY(PL_curstack); |
572 | PL_stack_base = AvARRAY(PL_curstack); |
507 | PL_stack_sp = PL_stack_base; |
573 | PL_stack_sp = PL_stack_base; |
508 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
574 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
509 | |
575 | |
510 | New(50,PL_tmps_stack,64,SV*); |
576 | New(50,PL_tmps_stack,32,SV*); |
511 | PL_tmps_floor = -1; |
577 | PL_tmps_floor = -1; |
512 | PL_tmps_ix = -1; |
578 | PL_tmps_ix = -1; |
513 | PL_tmps_max = 64; |
579 | PL_tmps_max = 32; |
514 | |
580 | |
515 | New(54,PL_markstack,16,I32); |
581 | New(54,PL_markstack,16,I32); |
516 | PL_markstack_ptr = PL_markstack; |
582 | PL_markstack_ptr = PL_markstack; |
517 | PL_markstack_max = PL_markstack + 16; |
583 | PL_markstack_max = PL_markstack + 16; |
518 | |
584 | |
519 | #ifdef SET_MARK_OFFSET |
585 | #ifdef SET_MARK_OFFSET |
520 | SET_MARK_OFFSET; |
586 | SET_MARK_OFFSET; |
521 | #endif |
587 | #endif |
522 | |
588 | |
523 | New(54,PL_scopestack,16,I32); |
589 | New(54,PL_scopestack,8,I32); |
524 | PL_scopestack_ix = 0; |
590 | PL_scopestack_ix = 0; |
525 | PL_scopestack_max = 16; |
591 | PL_scopestack_max = 8; |
526 | |
592 | |
527 | New(54,PL_savestack,64,ANY); |
593 | New(54,PL_savestack,24,ANY); |
528 | PL_savestack_ix = 0; |
594 | PL_savestack_ix = 0; |
529 | PL_savestack_max = 64; |
595 | PL_savestack_max = 24; |
530 | |
596 | |
531 | #if !PERL_VERSION_ATLEAST (5,9,0) |
597 | #if !PERL_VERSION_ATLEAST (5,9,0) |
532 | New(54,PL_retstack,4,OP*); |
598 | New(54,PL_retstack,4,OP*); |
533 | PL_retstack_ix = 0; |
599 | PL_retstack_ix = 0; |
534 | PL_retstack_max = 4; |
600 | PL_retstack_max = 4; |
… | |
… | |
540 | * destroy the stacks, the callchain etc... |
606 | * destroy the stacks, the callchain etc... |
541 | */ |
607 | */ |
542 | static void |
608 | static void |
543 | coro_destroy_stacks (pTHX) |
609 | coro_destroy_stacks (pTHX) |
544 | { |
610 | { |
545 | if (!IN_DESTRUCT) |
|
|
546 | { |
|
|
547 | /* restore all saved variables and stuff */ |
|
|
548 | LEAVE_SCOPE (0); |
|
|
549 | assert (PL_tmps_floor == -1); |
|
|
550 | |
|
|
551 | /* free all temporaries */ |
|
|
552 | FREETMPS; |
|
|
553 | assert (PL_tmps_ix == -1); |
|
|
554 | |
|
|
555 | /* unwind all extra stacks */ |
|
|
556 | POPSTACK_TO (PL_mainstack); |
|
|
557 | |
|
|
558 | /* unwind main stack */ |
|
|
559 | dounwind (-1); |
|
|
560 | } |
|
|
561 | |
|
|
562 | while (PL_curstackinfo->si_next) |
611 | while (PL_curstackinfo->si_next) |
563 | PL_curstackinfo = PL_curstackinfo->si_next; |
612 | PL_curstackinfo = PL_curstackinfo->si_next; |
564 | |
613 | |
565 | while (PL_curstackinfo) |
614 | while (PL_curstackinfo) |
566 | { |
615 | { |
… | |
… | |
584 | } |
633 | } |
585 | |
634 | |
586 | static size_t |
635 | static size_t |
587 | coro_rss (pTHX_ struct coro *coro) |
636 | coro_rss (pTHX_ struct coro *coro) |
588 | { |
637 | { |
589 | size_t rss = sizeof (coro); |
638 | size_t rss = sizeof (*coro); |
590 | |
639 | |
591 | if (coro->mainstack) |
640 | if (coro->mainstack) |
592 | { |
641 | { |
|
|
642 | perl_slots tmp_slot; |
|
|
643 | perl_slots *slot; |
|
|
644 | |
593 | if (coro->flags & CF_RUNNING) |
645 | if (coro->flags & CF_RUNNING) |
594 | { |
646 | { |
|
|
647 | slot = &tmp_slot; |
|
|
648 | |
595 | #define VAR(name,type)coro->name = PL_ ## name; |
649 | #define VAR(name,type) slot->name = PL_ ## name; |
596 | # include "state.h" |
650 | # include "state.h" |
597 | #undef VAR |
651 | #undef VAR |
598 | } |
652 | } |
|
|
653 | else |
|
|
654 | slot = coro->slot; |
599 | |
655 | |
600 | rss += sizeof (coro->curstackinfo); |
656 | rss += sizeof (slot->curstackinfo); |
601 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
602 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
657 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
603 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
658 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
604 | rss += coro->tmps_max * sizeof (SV *); |
659 | rss += slot->tmps_max * sizeof (SV *); |
605 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
660 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
606 | rss += coro->scopestack_max * sizeof (I32); |
661 | rss += slot->scopestack_max * sizeof (I32); |
607 | rss += coro->savestack_max * sizeof (ANY); |
662 | rss += slot->savestack_max * sizeof (ANY); |
608 | |
663 | |
609 | #if !PERL_VERSION_ATLEAST (5,9,0) |
664 | #if !PERL_VERSION_ATLEAST (5,9,0) |
610 | rss += coro->retstack_max * sizeof (OP *); |
665 | rss += slot->retstack_max * sizeof (OP *); |
611 | #endif |
666 | #endif |
612 | } |
667 | } |
613 | |
668 | |
614 | return rss; |
669 | return rss; |
615 | } |
670 | } |
616 | |
671 | |
617 | /** coroutine stack handling ************************************************/ |
672 | /** coroutine stack handling ************************************************/ |
618 | |
673 | |
|
|
674 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
675 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
676 | |
|
|
677 | /* |
|
|
678 | * This overrides the default magic get method of %SIG elements. |
|
|
679 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
680 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
681 | * readback here. |
|
|
682 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
683 | * not expecting this to actually change the hook. This is a potential problem |
|
|
684 | * when a schedule happens then, but we ignore this. |
|
|
685 | */ |
|
|
686 | static int |
|
|
687 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
688 | { |
|
|
689 | const char *s = MgPV_nolen_const (mg); |
|
|
690 | |
|
|
691 | if (*s == '_') |
|
|
692 | { |
|
|
693 | if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0; |
|
|
694 | if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0; |
|
|
695 | } |
|
|
696 | |
|
|
697 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
698 | } |
|
|
699 | |
|
|
700 | static int |
|
|
701 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
702 | { |
|
|
703 | const char *s = MgPV_nolen_const (mg); |
|
|
704 | |
|
|
705 | if (*s == '_') |
|
|
706 | { |
|
|
707 | SV **svp = 0; |
|
|
708 | |
|
|
709 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
710 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
711 | |
|
|
712 | if (svp) |
|
|
713 | { |
|
|
714 | SV *old = *svp; |
|
|
715 | *svp = newSVsv (sv); |
|
|
716 | SvREFCNT_dec (old); |
|
|
717 | return; |
|
|
718 | } |
|
|
719 | } |
|
|
720 | |
|
|
721 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
722 | } |
|
|
723 | |
619 | static void |
724 | static void |
620 | setup_coro (pTHX_ struct coro *coro) |
725 | coro_setup (pTHX_ struct coro *coro) |
621 | { |
726 | { |
622 | /* |
727 | /* |
623 | * emulate part of the perl startup here. |
728 | * emulate part of the perl startup here. |
624 | */ |
729 | */ |
625 | coro_init_stacks (aTHX); |
730 | coro_init_stacks (aTHX); |
… | |
… | |
627 | PL_runops = RUNOPS_DEFAULT; |
732 | PL_runops = RUNOPS_DEFAULT; |
628 | PL_curcop = &PL_compiling; |
733 | PL_curcop = &PL_compiling; |
629 | PL_in_eval = EVAL_NULL; |
734 | PL_in_eval = EVAL_NULL; |
630 | PL_comppad = 0; |
735 | PL_comppad = 0; |
631 | PL_curpm = 0; |
736 | PL_curpm = 0; |
|
|
737 | PL_curpad = 0; |
632 | PL_localizing = 0; |
738 | PL_localizing = 0; |
633 | PL_dirty = 0; |
739 | PL_dirty = 0; |
634 | PL_restartop = 0; |
740 | PL_restartop = 0; |
635 | |
741 | |
|
|
742 | /* recreate the die/warn hooks */ |
|
|
743 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
744 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
745 | |
|
|
746 | GvSV (PL_defgv) = newSV (0); |
|
|
747 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
748 | GvSV (PL_errgv) = newSV (0); |
|
|
749 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
750 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
751 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
|
|
752 | |
636 | { |
753 | { |
637 | dSP; |
754 | dSP; |
638 | LOGOP myop; |
755 | LOGOP myop; |
639 | |
756 | |
640 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
641 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
642 | |
|
|
643 | Zero (&myop, 1, LOGOP); |
757 | Zero (&myop, 1, LOGOP); |
644 | myop.op_next = Nullop; |
758 | myop.op_next = Nullop; |
645 | myop.op_flags = OPf_WANT_VOID; |
759 | myop.op_flags = OPf_WANT_VOID; |
646 | |
760 | |
647 | PUSHMARK (SP); |
761 | PUSHMARK (SP); |
648 | XPUSHs (av_shift (GvAV (PL_defgv))); |
762 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
649 | PUTBACK; |
763 | PUTBACK; |
650 | PL_op = (OP *)&myop; |
764 | PL_op = (OP *)&myop; |
651 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
765 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
652 | SPAGAIN; |
766 | SPAGAIN; |
653 | } |
767 | } |
654 | |
768 | |
655 | ENTER; /* necessary e.g. for dounwind */ |
769 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
770 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
771 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
772 | * so we ENTER here for symmetry |
|
|
773 | */ |
|
|
774 | ENTER; |
|
|
775 | } |
|
|
776 | |
|
|
777 | static void |
|
|
778 | coro_destroy (pTHX_ struct coro *coro) |
|
|
779 | { |
|
|
780 | if (!IN_DESTRUCT) |
|
|
781 | { |
|
|
782 | /* restore all saved variables and stuff */ |
|
|
783 | LEAVE_SCOPE (0); |
|
|
784 | assert (PL_tmps_floor == -1); |
|
|
785 | |
|
|
786 | /* free all temporaries */ |
|
|
787 | FREETMPS; |
|
|
788 | assert (PL_tmps_ix == -1); |
|
|
789 | |
|
|
790 | /* unwind all extra stacks */ |
|
|
791 | POPSTACK_TO (PL_mainstack); |
|
|
792 | |
|
|
793 | /* unwind main stack */ |
|
|
794 | dounwind (-1); |
|
|
795 | } |
|
|
796 | |
|
|
797 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
798 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
799 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
800 | SvREFCNT_dec (PL_defoutgv); |
|
|
801 | SvREFCNT_dec (PL_rs); |
|
|
802 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
803 | |
|
|
804 | SvREFCNT_dec (PL_diehook); |
|
|
805 | SvREFCNT_dec (PL_warnhook); |
|
|
806 | |
|
|
807 | SvREFCNT_dec (coro->saved_deffh); |
|
|
808 | SvREFCNT_dec (coro->throw); |
|
|
809 | |
|
|
810 | coro_destroy_stacks (aTHX); |
656 | } |
811 | } |
657 | |
812 | |
658 | static void |
813 | static void |
659 | free_coro_mortal (pTHX) |
814 | free_coro_mortal (pTHX) |
660 | { |
815 | { |
661 | if (coro_mortal) |
816 | if (expect_true (coro_mortal)) |
662 | { |
817 | { |
663 | SvREFCNT_dec (coro_mortal); |
818 | SvREFCNT_dec (coro_mortal); |
664 | coro_mortal = 0; |
819 | coro_mortal = 0; |
665 | } |
820 | } |
666 | } |
821 | } |
… | |
… | |
695 | bot = PL_stack_base + cx->blk_oldsp + 1; |
850 | bot = PL_stack_base + cx->blk_oldsp + 1; |
696 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
851 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
697 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
852 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
698 | : bot; |
853 | : bot; |
699 | |
854 | |
|
|
855 | av_extend (av, top - bot); |
700 | while (bot < top) |
856 | while (bot < top) |
701 | av_push (av, SvREFCNT_inc (*bot++)); |
857 | av_push (av, SvREFCNT_inc (*bot++)); |
702 | |
858 | |
703 | PL_runops = RUNOPS_DEFAULT; |
859 | PL_runops = RUNOPS_DEFAULT; |
704 | ENTER; |
860 | ENTER; |
… | |
… | |
744 | SAVETMPS; |
900 | SAVETMPS; |
745 | EXTEND (SP, 3); |
901 | EXTEND (SP, 3); |
746 | PUSHMARK (SP); |
902 | PUSHMARK (SP); |
747 | PUSHs (&PL_sv_yes); |
903 | PUSHs (&PL_sv_yes); |
748 | PUSHs (fullname); |
904 | PUSHs (fullname); |
749 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
905 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
750 | PUTBACK; |
906 | PUTBACK; |
751 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
907 | 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); |
908 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
753 | SPAGAIN; |
909 | SPAGAIN; |
754 | FREETMPS; |
910 | FREETMPS; |
… | |
… | |
790 | |
946 | |
791 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
947 | /* 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 */ |
948 | /* _cctx_init should be careful, as it could be called at almost any time */ |
793 | /* during execution of a perl program */ |
949 | /* during execution of a perl program */ |
794 | static void NOINLINE |
950 | static void NOINLINE |
795 | prepare_cctx (pTHX_ coro_cctx *cctx) |
951 | cctx_prepare (pTHX_ coro_cctx *cctx) |
796 | { |
952 | { |
797 | dSP; |
953 | dSP; |
798 | LOGOP myop; |
954 | LOGOP myop; |
799 | |
955 | |
800 | PL_top_env = &PL_start_env; |
956 | PL_top_env = &PL_start_env; |
… | |
… | |
818 | |
974 | |
819 | /* |
975 | /* |
820 | * this is a _very_ stripped down perl interpreter ;) |
976 | * this is a _very_ stripped down perl interpreter ;) |
821 | */ |
977 | */ |
822 | static void |
978 | static void |
823 | coro_run (void *arg) |
979 | cctx_run (void *arg) |
824 | { |
980 | { |
825 | dTHX; |
981 | dTHX; |
826 | |
982 | |
827 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
983 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
828 | UNLOCK; |
984 | UNLOCK; |
829 | |
985 | |
830 | /* we now skip the entersub that lead to transfer() */ |
986 | /* we now skip the entersub that lead to transfer() */ |
831 | PL_op = PL_op->op_next; |
987 | PL_op = PL_op->op_next; |
832 | |
988 | |
833 | /* inject a fake subroutine call to cctx_init */ |
989 | /* inject a fake subroutine call to cctx_init */ |
834 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
990 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
835 | |
991 | |
836 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
992 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
837 | PL_restartop = PL_op; |
993 | PL_restartop = PL_op; |
838 | perl_run (PL_curinterp); |
994 | perl_run (PL_curinterp); |
839 | |
995 | |
… | |
… | |
858 | ++cctx_count; |
1014 | ++cctx_count; |
859 | |
1015 | |
860 | Newz (0, cctx, 1, coro_cctx); |
1016 | Newz (0, cctx, 1, coro_cctx); |
861 | |
1017 | |
862 | #if HAVE_MMAP |
1018 | #if HAVE_MMAP |
863 | |
|
|
864 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1019 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
865 | /* mmap supposedly does allocate-on-write for us */ |
1020 | /* mmap supposedly does allocate-on-write for us */ |
866 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1021 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
867 | |
1022 | |
868 | if (cctx->sptr != (void *)-1) |
1023 | if (cctx->sptr != (void *)-1) |
… | |
… | |
889 | stack_start = cctx->sptr; |
1044 | stack_start = cctx->sptr; |
890 | stack_size = cctx->ssize; |
1045 | stack_size = cctx->ssize; |
891 | } |
1046 | } |
892 | |
1047 | |
893 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1048 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
894 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1049 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
895 | |
1050 | |
896 | return cctx; |
1051 | return cctx; |
897 | } |
1052 | } |
898 | |
1053 | |
899 | static void |
1054 | static void |
… | |
… | |
916 | Safefree (cctx->sptr); |
1071 | Safefree (cctx->sptr); |
917 | |
1072 | |
918 | Safefree (cctx); |
1073 | Safefree (cctx); |
919 | } |
1074 | } |
920 | |
1075 | |
|
|
1076 | /* wether this cctx should be destructed */ |
|
|
1077 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1078 | |
921 | static coro_cctx * |
1079 | static coro_cctx * |
922 | cctx_get (pTHX) |
1080 | cctx_get (pTHX) |
923 | { |
1081 | { |
924 | while (cctx_first) |
1082 | while (expect_true (cctx_first)) |
925 | { |
1083 | { |
926 | coro_cctx *cctx = cctx_first; |
1084 | coro_cctx *cctx = cctx_first; |
927 | cctx_first = cctx->next; |
1085 | cctx_first = cctx->next; |
928 | --cctx_idle; |
1086 | --cctx_idle; |
929 | |
1087 | |
930 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
1088 | if (expect_true (!CCTX_EXPIRED (cctx))) |
931 | return cctx; |
1089 | return cctx; |
932 | |
1090 | |
933 | cctx_destroy (cctx); |
1091 | cctx_destroy (cctx); |
934 | } |
1092 | } |
935 | |
1093 | |
… | |
… | |
938 | |
1096 | |
939 | static void |
1097 | static void |
940 | cctx_put (coro_cctx *cctx) |
1098 | cctx_put (coro_cctx *cctx) |
941 | { |
1099 | { |
942 | /* free another cctx if overlimit */ |
1100 | /* free another cctx if overlimit */ |
943 | if (cctx_idle >= MAX_IDLE_CCTX) |
1101 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
944 | { |
1102 | { |
945 | coro_cctx *first = cctx_first; |
1103 | coro_cctx *first = cctx_first; |
946 | cctx_first = first->next; |
1104 | cctx_first = first->next; |
947 | --cctx_idle; |
1105 | --cctx_idle; |
948 | |
1106 | |
… | |
… | |
954 | cctx_first = cctx; |
1112 | cctx_first = cctx; |
955 | } |
1113 | } |
956 | |
1114 | |
957 | /** coroutine switching *****************************************************/ |
1115 | /** coroutine switching *****************************************************/ |
958 | |
1116 | |
959 | static void NOINLINE |
1117 | static void |
960 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1118 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
961 | { |
1119 | { |
962 | if (prev != next) |
1120 | if (expect_true (prev != next)) |
963 | { |
1121 | { |
964 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
1122 | if (expect_false (!(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"); |
1123 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
966 | |
1124 | |
967 | if (next->flags & CF_RUNNING) |
1125 | if (expect_false (next->flags & CF_RUNNING)) |
968 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1126 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
969 | |
1127 | |
970 | if (next->flags & CF_DESTROYED) |
1128 | if (expect_false (next->flags & CF_DESTROYED)) |
971 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1129 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
972 | |
1130 | |
|
|
1131 | if ( |
|
|
1132 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
1133 | expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING) |
|
|
1134 | #else |
973 | if (PL_lex_state != LEX_NOTPARSING) |
1135 | expect_false (PL_lex_state != LEX_NOTPARSING) |
|
|
1136 | #endif |
|
|
1137 | ) |
974 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1138 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
975 | } |
1139 | } |
976 | } |
1140 | } |
977 | |
1141 | |
978 | /* always use the TRANSFER macro */ |
1142 | /* always use the TRANSFER macro */ |
979 | static void NOINLINE |
1143 | static void NOINLINE |
980 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1144 | transfer (pTHX_ struct coro *prev, struct coro *next) |
981 | { |
1145 | { |
982 | dSTACKLEVEL; |
1146 | dSTACKLEVEL; |
|
|
1147 | static volatile int has_throw; |
983 | |
1148 | |
984 | /* sometimes transfer is only called to set idle_sp */ |
1149 | /* sometimes transfer is only called to set idle_sp */ |
985 | if (!next) |
1150 | if (expect_false (!next)) |
986 | { |
1151 | { |
987 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1152 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
988 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1153 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
989 | } |
1154 | } |
990 | else if (prev != next) |
1155 | else if (expect_true (prev != next)) |
991 | { |
1156 | { |
992 | coro_cctx *prev__cctx; |
1157 | coro_cctx *prev__cctx; |
993 | |
1158 | |
994 | if (prev->flags & CF_NEW) |
1159 | if (expect_false (prev->flags & CF_NEW)) |
995 | { |
1160 | { |
996 | /* create a new empty context */ |
1161 | /* create a new empty context */ |
997 | Newz (0, prev->cctx, 1, coro_cctx); |
1162 | Newz (0, prev->cctx, 1, coro_cctx); |
998 | prev->flags &= ~CF_NEW; |
1163 | prev->flags &= ~CF_NEW; |
999 | prev->flags |= CF_RUNNING; |
1164 | prev->flags |= CF_RUNNING; |
… | |
… | |
1002 | prev->flags &= ~CF_RUNNING; |
1167 | prev->flags &= ~CF_RUNNING; |
1003 | next->flags |= CF_RUNNING; |
1168 | next->flags |= CF_RUNNING; |
1004 | |
1169 | |
1005 | LOCK; |
1170 | LOCK; |
1006 | |
1171 | |
|
|
1172 | /* first get rid of the old state */ |
|
|
1173 | save_perl (aTHX_ prev); |
|
|
1174 | |
1007 | if (next->flags & CF_NEW) |
1175 | if (expect_false (next->flags & CF_NEW)) |
1008 | { |
1176 | { |
1009 | /* need to start coroutine */ |
1177 | /* need to start coroutine */ |
1010 | next->flags &= ~CF_NEW; |
1178 | next->flags &= ~CF_NEW; |
1011 | /* first get rid of the old state */ |
|
|
1012 | save_perl (aTHX_ prev); |
|
|
1013 | /* setup coroutine call */ |
1179 | /* setup coroutine call */ |
1014 | setup_coro (aTHX_ next); |
1180 | coro_setup (aTHX_ next); |
1015 | } |
1181 | } |
1016 | else |
1182 | else |
1017 | { |
|
|
1018 | /* coroutine already started */ |
|
|
1019 | save_perl (aTHX_ prev); |
|
|
1020 | load_perl (aTHX_ next); |
1183 | load_perl (aTHX_ next); |
1021 | } |
|
|
1022 | |
1184 | |
1023 | prev__cctx = prev->cctx; |
1185 | prev__cctx = prev->cctx; |
1024 | |
1186 | |
1025 | /* possibly "free" the cctx */ |
1187 | /* possibly "free" the cctx */ |
1026 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
1188 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
1027 | { |
1189 | { |
1028 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1190 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1029 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1191 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1030 | |
1192 | |
1031 | prev->cctx = 0; |
1193 | prev->cctx = 0; |
1032 | |
1194 | |
|
|
1195 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1196 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1197 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1198 | if (!next->cctx) |
|
|
1199 | next->cctx = cctx_get (aTHX); |
|
|
1200 | |
1033 | cctx_put (prev__cctx); |
1201 | cctx_put (prev__cctx); |
1034 | } |
1202 | } |
1035 | |
1203 | |
1036 | ++next->usecount; |
1204 | ++next->usecount; |
1037 | |
1205 | |
1038 | if (!next->cctx) |
1206 | if (expect_true (!next->cctx)) |
1039 | next->cctx = cctx_get (aTHX); |
1207 | next->cctx = cctx_get (aTHX); |
1040 | |
1208 | |
|
|
1209 | has_throw = !!next->throw; |
|
|
1210 | |
1041 | if (prev__cctx != next->cctx) |
1211 | if (expect_false (prev__cctx != next->cctx)) |
1042 | { |
1212 | { |
1043 | prev__cctx->top_env = PL_top_env; |
1213 | prev__cctx->top_env = PL_top_env; |
1044 | PL_top_env = next->cctx->top_env; |
1214 | PL_top_env = next->cctx->top_env; |
1045 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1215 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1046 | } |
1216 | } |
1047 | |
1217 | |
1048 | free_coro_mortal (aTHX); |
1218 | free_coro_mortal (aTHX); |
1049 | UNLOCK; |
1219 | UNLOCK; |
|
|
1220 | |
|
|
1221 | if (expect_false (has_throw)) |
|
|
1222 | { |
|
|
1223 | struct coro *coro = SvSTATE (coro_current); |
|
|
1224 | |
|
|
1225 | if (coro->throw) |
|
|
1226 | { |
|
|
1227 | SV *exception = coro->throw; |
|
|
1228 | coro->throw = 0; |
|
|
1229 | sv_setsv (ERRSV, exception); |
|
|
1230 | croak (0); |
|
|
1231 | } |
|
|
1232 | } |
1050 | } |
1233 | } |
1051 | } |
1234 | } |
1052 | |
1235 | |
1053 | struct transfer_args |
1236 | struct transfer_args |
1054 | { |
1237 | { |
… | |
… | |
1081 | |
1264 | |
1082 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1265 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1083 | { |
1266 | { |
1084 | struct coro temp; |
1267 | struct coro temp; |
1085 | |
1268 | |
1086 | assert (!(coro->flags & CF_RUNNING)); |
|
|
1087 | |
|
|
1088 | Zero (&temp, 1, struct coro); |
|
|
1089 | temp.save = CORO_SAVE_ALL; |
|
|
1090 | |
|
|
1091 | if (coro->flags & CF_RUNNING) |
1269 | if (coro->flags & CF_RUNNING) |
1092 | croak ("FATAL: tried to destroy currently running coroutine"); |
1270 | croak ("FATAL: tried to destroy currently running coroutine"); |
1093 | |
1271 | |
1094 | save_perl (aTHX_ &temp); |
1272 | save_perl (aTHX_ &temp); |
1095 | load_perl (aTHX_ coro); |
1273 | load_perl (aTHX_ coro); |
1096 | |
1274 | |
1097 | coro_destroy_stacks (aTHX); |
1275 | coro_destroy (aTHX_ coro); |
1098 | |
1276 | |
1099 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
1277 | load_perl (aTHX_ &temp); |
1100 | |
1278 | |
1101 | coro->mainstack = 0; |
1279 | coro->slot = 0; |
1102 | } |
1280 | } |
1103 | |
1281 | |
1104 | cctx_destroy (coro->cctx); |
1282 | cctx_destroy (coro->cctx); |
1105 | SvREFCNT_dec (coro->args); |
1283 | SvREFCNT_dec (coro->args); |
1106 | |
1284 | |
… | |
… | |
1165 | |
1343 | |
1166 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1344 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1167 | TRANSFER (ta); |
1345 | TRANSFER (ta); |
1168 | } |
1346 | } |
1169 | |
1347 | |
1170 | static int |
|
|
1171 | api_save (SV *coro_sv, int new_save) |
|
|
1172 | { |
|
|
1173 | dTHX; |
|
|
1174 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1175 | int old_save = coro->save; |
|
|
1176 | |
|
|
1177 | if (new_save >= 0) |
|
|
1178 | coro->save = new_save; |
|
|
1179 | |
|
|
1180 | return old_save; |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | /** Coro ********************************************************************/ |
1348 | /** Coro ********************************************************************/ |
1184 | |
1349 | |
1185 | static void |
1350 | static void |
1186 | coro_enq (pTHX_ SV *coro_sv) |
1351 | coro_enq (pTHX_ SV *coro_sv) |
1187 | { |
1352 | { |
1188 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1353 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1189 | } |
1354 | } |
1190 | |
1355 | |
1191 | static SV * |
1356 | static SV * |
1192 | coro_deq (pTHX_ int min_prio) |
1357 | coro_deq (pTHX) |
1193 | { |
1358 | { |
1194 | int prio = PRIO_MAX - PRIO_MIN; |
1359 | int prio; |
1195 | |
1360 | |
1196 | min_prio -= PRIO_MIN; |
|
|
1197 | if (min_prio < 0) |
|
|
1198 | min_prio = 0; |
|
|
1199 | |
|
|
1200 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1361 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1201 | if (AvFILLp (coro_ready [prio]) >= 0) |
1362 | if (AvFILLp (coro_ready [prio]) >= 0) |
1202 | return av_shift (coro_ready [prio]); |
1363 | return av_shift (coro_ready [prio]); |
1203 | |
1364 | |
1204 | return 0; |
1365 | return 0; |
1205 | } |
1366 | } |
… | |
… | |
1241 | SV *prev_sv, *next_sv; |
1402 | SV *prev_sv, *next_sv; |
1242 | |
1403 | |
1243 | for (;;) |
1404 | for (;;) |
1244 | { |
1405 | { |
1245 | LOCK; |
1406 | LOCK; |
1246 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1407 | next_sv = coro_deq (aTHX); |
1247 | |
1408 | |
1248 | /* nothing to schedule: call the idle handler */ |
1409 | /* nothing to schedule: call the idle handler */ |
1249 | if (!next_sv) |
1410 | if (expect_false (!next_sv)) |
1250 | { |
1411 | { |
1251 | dSP; |
1412 | dSP; |
1252 | UNLOCK; |
1413 | UNLOCK; |
1253 | |
1414 | |
1254 | ENTER; |
1415 | ENTER; |
1255 | SAVETMPS; |
1416 | SAVETMPS; |
1256 | |
1417 | |
1257 | PUSHMARK (SP); |
1418 | PUSHMARK (SP); |
1258 | PUTBACK; |
1419 | PUTBACK; |
1259 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1420 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1421 | SPAGAIN; |
1260 | |
1422 | |
1261 | FREETMPS; |
1423 | FREETMPS; |
1262 | LEAVE; |
1424 | LEAVE; |
1263 | continue; |
1425 | continue; |
1264 | } |
1426 | } |
1265 | |
1427 | |
1266 | ta->next = SvSTATE (next_sv); |
1428 | ta->next = SvSTATE (next_sv); |
1267 | |
1429 | |
1268 | /* cannot transfer to destroyed coros, skip and look for next */ |
1430 | /* cannot transfer to destroyed coros, skip and look for next */ |
1269 | if (ta->next->flags & CF_DESTROYED) |
1431 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1270 | { |
1432 | { |
1271 | UNLOCK; |
1433 | UNLOCK; |
1272 | SvREFCNT_dec (next_sv); |
1434 | SvREFCNT_dec (next_sv); |
1273 | /* coro_nready is already taken care of by destroy */ |
1435 | /* coro_nready is already taken care of by destroy */ |
1274 | continue; |
1436 | continue; |
… | |
… | |
1330 | dTHX; |
1492 | dTHX; |
1331 | struct transfer_args ta; |
1493 | struct transfer_args ta; |
1332 | |
1494 | |
1333 | prepare_cede (aTHX_ &ta); |
1495 | prepare_cede (aTHX_ &ta); |
1334 | |
1496 | |
1335 | if (ta.prev != ta.next) |
1497 | if (expect_true (ta.prev != ta.next)) |
1336 | { |
1498 | { |
1337 | TRANSFER (ta); |
1499 | TRANSFER (ta); |
1338 | return 1; |
1500 | return 1; |
1339 | } |
1501 | } |
1340 | else |
1502 | else |
… | |
… | |
1355 | else |
1517 | else |
1356 | return 0; |
1518 | return 0; |
1357 | } |
1519 | } |
1358 | |
1520 | |
1359 | static void |
1521 | static void |
1360 | api_trace (struct coro *coro, int flags) |
1522 | api_trace (SV *coro_sv, int flags) |
1361 | { |
1523 | { |
1362 | dTHX; |
1524 | dTHX; |
|
|
1525 | struct coro *coro = SvSTATE (coro_sv); |
1363 | |
1526 | |
1364 | if (flags & CC_TRACE) |
1527 | if (flags & CC_TRACE) |
1365 | { |
1528 | { |
1366 | if (!coro->cctx) |
1529 | if (!coro->cctx) |
1367 | coro->cctx = cctx_new (); |
1530 | coro->cctx = cctx_new (); |
… | |
… | |
1375 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1538 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1376 | |
1539 | |
1377 | if (coro->flags & CF_RUNNING) |
1540 | if (coro->flags & CF_RUNNING) |
1378 | PL_runops = RUNOPS_DEFAULT; |
1541 | PL_runops = RUNOPS_DEFAULT; |
1379 | else |
1542 | else |
1380 | coro->runops = RUNOPS_DEFAULT; |
1543 | coro->slot->runops = RUNOPS_DEFAULT; |
1381 | } |
1544 | } |
1382 | } |
1545 | } |
1383 | |
1546 | |
1384 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1547 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1385 | |
1548 | |
… | |
… | |
1389 | { |
1552 | { |
1390 | #ifdef USE_ITHREADS |
1553 | #ifdef USE_ITHREADS |
1391 | MUTEX_INIT (&coro_mutex); |
1554 | MUTEX_INIT (&coro_mutex); |
1392 | #endif |
1555 | #endif |
1393 | BOOT_PAGESIZE; |
1556 | BOOT_PAGESIZE; |
|
|
1557 | |
|
|
1558 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1559 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1560 | |
|
|
1561 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; |
|
|
1562 | PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1563 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; |
|
|
1564 | PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1565 | |
|
|
1566 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1567 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1568 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1394 | |
1569 | |
1395 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1570 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1396 | |
1571 | |
1397 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1572 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1398 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1573 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1399 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1574 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1400 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1575 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1401 | |
1576 | |
1402 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
|
|
1403 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1404 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1405 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1406 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1407 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
|
|
1408 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
|
|
1409 | |
|
|
1410 | main_mainstack = PL_mainstack; |
1577 | main_mainstack = PL_mainstack; |
1411 | main_top_env = PL_top_env; |
1578 | main_top_env = PL_top_env; |
1412 | |
1579 | |
1413 | while (main_top_env->je_prev) |
1580 | while (main_top_env->je_prev) |
1414 | main_top_env = main_top_env->je_prev; |
1581 | main_top_env = main_top_env->je_prev; |
1415 | |
1582 | |
1416 | coroapi.ver = CORO_API_VERSION; |
1583 | coroapi.ver = CORO_API_VERSION; |
|
|
1584 | coroapi.rev = CORO_API_REVISION; |
1417 | coroapi.transfer = api_transfer; |
1585 | coroapi.transfer = api_transfer; |
1418 | |
1586 | |
1419 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1587 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1420 | } |
1588 | } |
1421 | |
1589 | |
1422 | SV * |
1590 | SV * |
1423 | new (char *klass, ...) |
1591 | new (char *klass, ...) |
1424 | CODE: |
1592 | CODE: |
1425 | { |
1593 | { |
1426 | struct coro *coro; |
1594 | struct coro *coro; |
|
|
1595 | MAGIC *mg; |
1427 | HV *hv; |
1596 | HV *hv; |
1428 | int i; |
1597 | int i; |
1429 | |
1598 | |
1430 | Newz (0, coro, 1, struct coro); |
1599 | Newz (0, coro, 1, struct coro); |
1431 | coro->args = newAV (); |
1600 | coro->args = newAV (); |
1432 | coro->save = CORO_SAVE_DEF; |
|
|
1433 | coro->flags = CF_NEW; |
1601 | coro->flags = CF_NEW; |
1434 | |
1602 | |
1435 | if (coro_first) coro_first->prev = coro; |
1603 | if (coro_first) coro_first->prev = coro; |
1436 | coro->next = coro_first; |
1604 | coro->next = coro_first; |
1437 | coro_first = coro; |
1605 | coro_first = coro; |
1438 | |
1606 | |
1439 | coro->hv = hv = newHV (); |
1607 | coro->hv = hv = newHV (); |
1440 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1608 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1609 | mg->mg_flags |= MGf_DUP; |
1441 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1610 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1442 | |
1611 | |
|
|
1612 | av_extend (coro->args, items - 1); |
1443 | for (i = 1; i < items; i++) |
1613 | for (i = 1; i < items; i++) |
1444 | av_push (coro->args, newSVsv (ST (i))); |
1614 | av_push (coro->args, newSVsv (ST (i))); |
1445 | } |
1615 | } |
1446 | OUTPUT: |
1616 | OUTPUT: |
1447 | RETVAL |
1617 | RETVAL |
1448 | |
1618 | |
1449 | int |
1619 | # these not obviously related functions are all rolled into the same xs |
1450 | save (SV *coro, int new_save = -1) |
1620 | # function to increase chances that they all will call transfer with the same |
1451 | CODE: |
1621 | # stack offset |
1452 | RETVAL = api_save (coro, new_save); |
|
|
1453 | OUTPUT: |
|
|
1454 | RETVAL |
|
|
1455 | |
|
|
1456 | int |
|
|
1457 | save_also (SV *coro_sv, int save_also) |
|
|
1458 | CODE: |
|
|
1459 | { |
|
|
1460 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1461 | RETVAL = coro->save; |
|
|
1462 | coro->save |= save_also; |
|
|
1463 | } |
|
|
1464 | OUTPUT: |
|
|
1465 | RETVAL |
|
|
1466 | |
|
|
1467 | void |
1622 | void |
1468 | _set_stacklevel (...) |
1623 | _set_stacklevel (...) |
1469 | ALIAS: |
1624 | ALIAS: |
1470 | Coro::State::transfer = 1 |
1625 | Coro::State::transfer = 1 |
1471 | Coro::schedule = 2 |
1626 | Coro::schedule = 2 |
… | |
… | |
1473 | Coro::cede_notself = 4 |
1628 | Coro::cede_notself = 4 |
1474 | CODE: |
1629 | CODE: |
1475 | { |
1630 | { |
1476 | struct transfer_args ta; |
1631 | struct transfer_args ta; |
1477 | |
1632 | |
|
|
1633 | PUTBACK; |
1478 | switch (ix) |
1634 | switch (ix) |
1479 | { |
1635 | { |
1480 | case 0: |
1636 | case 0: |
1481 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1637 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1482 | ta.next = 0; |
1638 | ta.next = 0; |
… | |
… | |
1501 | if (!prepare_cede_notself (aTHX_ &ta)) |
1657 | if (!prepare_cede_notself (aTHX_ &ta)) |
1502 | XSRETURN_EMPTY; |
1658 | XSRETURN_EMPTY; |
1503 | |
1659 | |
1504 | break; |
1660 | break; |
1505 | } |
1661 | } |
|
|
1662 | SPAGAIN; |
1506 | |
1663 | |
1507 | BARRIER; |
1664 | BARRIER; |
|
|
1665 | PUTBACK; |
1508 | TRANSFER (ta); |
1666 | TRANSFER (ta); |
1509 | |
1667 | SPAGAIN; /* might be the sp of a different coroutine now */ |
1510 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1668 | /* be extra careful not to ever do anything after TRANSFER */ |
1511 | XSRETURN_YES; |
|
|
1512 | } |
1669 | } |
1513 | |
1670 | |
1514 | bool |
1671 | bool |
1515 | _destroy (SV *coro_sv) |
1672 | _destroy (SV *coro_sv) |
1516 | CODE: |
1673 | CODE: |
… | |
… | |
1565 | CODE: |
1722 | CODE: |
1566 | { |
1723 | { |
1567 | if (coro->mainstack) |
1724 | if (coro->mainstack) |
1568 | { |
1725 | { |
1569 | struct coro temp; |
1726 | struct coro temp; |
1570 | Zero (&temp, 1, struct coro); |
|
|
1571 | temp.save = CORO_SAVE_ALL; |
|
|
1572 | |
1727 | |
1573 | if (!(coro->flags & CF_RUNNING)) |
1728 | if (!(coro->flags & CF_RUNNING)) |
1574 | { |
1729 | { |
|
|
1730 | PUTBACK; |
1575 | save_perl (aTHX_ &temp); |
1731 | save_perl (aTHX_ &temp); |
1576 | load_perl (aTHX_ coro); |
1732 | load_perl (aTHX_ coro); |
1577 | } |
1733 | } |
1578 | |
1734 | |
1579 | { |
1735 | { |
1580 | dSP; |
1736 | dSP; |
1581 | ENTER; |
1737 | ENTER; |
1582 | SAVETMPS; |
1738 | SAVETMPS; |
|
|
1739 | PUTBACK; |
|
|
1740 | PUSHSTACK; |
1583 | PUSHMARK (SP); |
1741 | PUSHMARK (SP); |
1584 | PUTBACK; |
1742 | |
1585 | if (ix) |
1743 | if (ix) |
1586 | eval_sv (coderef, 0); |
1744 | eval_sv (coderef, 0); |
1587 | else |
1745 | else |
1588 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1746 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1747 | |
|
|
1748 | POPSTACK; |
1589 | SPAGAIN; |
1749 | SPAGAIN; |
1590 | FREETMPS; |
1750 | FREETMPS; |
1591 | LEAVE; |
1751 | LEAVE; |
1592 | PUTBACK; |
1752 | PUTBACK; |
1593 | } |
1753 | } |
1594 | |
1754 | |
1595 | if (!(coro->flags & CF_RUNNING)) |
1755 | if (!(coro->flags & CF_RUNNING)) |
1596 | { |
1756 | { |
1597 | save_perl (aTHX_ coro); |
1757 | save_perl (aTHX_ coro); |
1598 | load_perl (aTHX_ &temp); |
1758 | load_perl (aTHX_ &temp); |
|
|
1759 | SPAGAIN; |
1599 | } |
1760 | } |
1600 | } |
1761 | } |
1601 | } |
1762 | } |
1602 | |
1763 | |
1603 | SV * |
1764 | SV * |
… | |
… | |
1612 | RETVAL = boolSV (coro->flags & ix); |
1773 | RETVAL = boolSV (coro->flags & ix); |
1613 | OUTPUT: |
1774 | OUTPUT: |
1614 | RETVAL |
1775 | RETVAL |
1615 | |
1776 | |
1616 | void |
1777 | void |
1617 | api_trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB) |
1778 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
1618 | |
1779 | |
1619 | SV * |
1780 | SV * |
1620 | has_stack (Coro::State coro) |
1781 | has_stack (Coro::State coro) |
1621 | PROTOTYPE: $ |
1782 | PROTOTYPE: $ |
1622 | CODE: |
1783 | CODE: |
… | |
… | |
1651 | |
1812 | |
1652 | BOOT: |
1813 | BOOT: |
1653 | { |
1814 | { |
1654 | int i; |
1815 | int i; |
1655 | |
1816 | |
1656 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
1817 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1657 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
1818 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
1658 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
1819 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
1659 | |
1820 | |
1660 | coro_current = get_sv ("Coro::current", FALSE); |
1821 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
1661 | SvREADONLY_on (coro_current); |
1822 | SvREADONLY_on (coro_current); |
1662 | |
1823 | |
1663 | coro_stash = gv_stashpv ("Coro", TRUE); |
1824 | coro_stash = gv_stashpv ("Coro", TRUE); |
1664 | |
1825 | |
1665 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1826 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1666 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1827 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1667 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1828 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1668 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1829 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
… | |
… | |
1671 | |
1832 | |
1672 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1833 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1673 | coro_ready[i] = newAV (); |
1834 | coro_ready[i] = newAV (); |
1674 | |
1835 | |
1675 | { |
1836 | { |
1676 | SV *sv = perl_get_sv("Coro::API", 1); |
1837 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1838 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1677 | |
1839 | |
1678 | coroapi.schedule = api_schedule; |
1840 | coroapi.schedule = api_schedule; |
1679 | coroapi.save = api_save; |
|
|
1680 | coroapi.cede = api_cede; |
1841 | coroapi.cede = api_cede; |
1681 | coroapi.cede_notself = api_cede_notself; |
1842 | coroapi.cede_notself = api_cede_notself; |
1682 | coroapi.ready = api_ready; |
1843 | coroapi.ready = api_ready; |
1683 | coroapi.is_ready = api_is_ready; |
1844 | coroapi.is_ready = api_is_ready; |
1684 | coroapi.nready = &coro_nready; |
1845 | coroapi.nready = &coro_nready; |
… | |
… | |
1733 | CODE: |
1894 | CODE: |
1734 | RETVAL = coro_nready; |
1895 | RETVAL = coro_nready; |
1735 | OUTPUT: |
1896 | OUTPUT: |
1736 | RETVAL |
1897 | RETVAL |
1737 | |
1898 | |
|
|
1899 | void |
|
|
1900 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1901 | PROTOTYPE: $;$ |
|
|
1902 | CODE: |
|
|
1903 | SvREFCNT_dec (self->throw); |
|
|
1904 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1905 | |
|
|
1906 | void |
|
|
1907 | swap_defsv (Coro::State self) |
|
|
1908 | PROTOTYPE: $ |
|
|
1909 | ALIAS: |
|
|
1910 | swap_defav = 1 |
|
|
1911 | CODE: |
|
|
1912 | if (!self->slot) |
|
|
1913 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
1914 | else |
|
|
1915 | { |
|
|
1916 | SV **src = ix ? (SV *)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
1917 | SV **dst = ix ? self->slot->defav : self->slot->defsv; |
|
|
1918 | |
|
|
1919 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
1920 | } |
|
|
1921 | |
1738 | # for async_pool speedup |
1922 | # for async_pool speedup |
1739 | void |
1923 | void |
1740 | _pool_1 (SV *cb) |
1924 | _pool_1 (SV *cb) |
1741 | CODE: |
1925 | CODE: |
1742 | { |
1926 | { |
1743 | int i, len; |
1927 | struct coro *coro = SvSTATE (coro_current); |
1744 | HV *hv = (HV *)SvRV (coro_current); |
1928 | HV *hv = (HV *)SvRV (coro_current); |
1745 | AV *defav = GvAV (PL_defgv); |
1929 | AV *defav = GvAV (PL_defgv); |
1746 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1930 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1747 | AV *invoke_av; |
1931 | AV *invoke_av; |
|
|
1932 | int i, len; |
1748 | |
1933 | |
1749 | if (!invoke) |
1934 | if (!invoke) |
|
|
1935 | { |
|
|
1936 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
1750 | croak ("\3terminate\2\n"); |
1937 | croak ("\3async_pool terminate\2\n"); |
|
|
1938 | } |
|
|
1939 | |
|
|
1940 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1941 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
1751 | |
1942 | |
1752 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1943 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1753 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
1944 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
1754 | |
1945 | |
1755 | invoke_av = (AV *)SvRV (invoke); |
1946 | invoke_av = (AV *)SvRV (invoke); |
… | |
… | |
1773 | { |
1964 | { |
1774 | struct coro *coro = SvSTATE (coro_current); |
1965 | struct coro *coro = SvSTATE (coro_current); |
1775 | |
1966 | |
1776 | sv_setsv (cb, &PL_sv_undef); |
1967 | sv_setsv (cb, &PL_sv_undef); |
1777 | |
1968 | |
|
|
1969 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1970 | coro->saved_deffh = 0; |
|
|
1971 | |
1778 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
1972 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
1779 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
1973 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1974 | { |
|
|
1975 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
1780 | croak ("\3terminate\2\n"); |
1976 | croak ("\3async_pool terminate\2\n"); |
|
|
1977 | } |
1781 | |
1978 | |
1782 | av_clear (GvAV (PL_defgv)); |
1979 | av_clear (GvAV (PL_defgv)); |
1783 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
1980 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
1784 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1981 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1785 | coro->save = CORO_SAVE_DEF; |
1982 | |
1786 | coro->prio = 0; |
1983 | coro->prio = 0; |
1787 | |
1984 | |
1788 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
1985 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
1789 | api_trace (coro, 0); |
1986 | api_trace (coro_current, 0); |
1790 | |
1987 | |
1791 | av_push (av_async_pool, newSVsv (coro_current)); |
1988 | av_push (av_async_pool, newSVsv (coro_current)); |
1792 | } |
1989 | } |
1793 | |
1990 | |
1794 | |
1991 | |