1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
|
|
2 | |
|
|
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 | |
7 | #include "patchlevel.h" |
9 | #include "patchlevel.h" |
8 | |
10 | |
9 | #if USE_VALGRIND |
|
|
10 | # include <valgrind/valgrind.h> |
|
|
11 | #endif |
|
|
12 | |
|
|
13 | /* the maximum number of idle cctx that will be pooled */ |
|
|
14 | #define MAX_IDLE_CCTX 8 |
|
|
15 | |
|
|
16 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
|
|
17 | (PERL_REVISION > (a) \ |
|
|
18 | || (PERL_REVISION == (a) \ |
|
|
19 | && (PERL_VERSION > (b) \ |
|
|
20 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
|
|
21 | |
|
|
22 | #if !PERL_VERSION_ATLEAST (5,6,0) |
|
|
23 | # ifndef PL_ppaddr |
|
|
24 | # define PL_ppaddr ppaddr |
|
|
25 | # endif |
|
|
26 | # ifndef call_sv |
|
|
27 | # define call_sv perl_call_sv |
|
|
28 | # endif |
|
|
29 | # ifndef get_sv |
|
|
30 | # define get_sv perl_get_sv |
|
|
31 | # endif |
|
|
32 | # ifndef get_cv |
|
|
33 | # define get_cv perl_get_cv |
|
|
34 | # endif |
|
|
35 | # ifndef IS_PADGV |
|
|
36 | # define IS_PADGV(v) 0 |
|
|
37 | # endif |
|
|
38 | # ifndef IS_PADCONST |
|
|
39 | # define IS_PADCONST(v) 0 |
|
|
40 | # endif |
|
|
41 | #endif |
|
|
42 | |
|
|
43 | #include <stdio.h> |
11 | #include <stdio.h> |
44 | #include <errno.h> |
12 | #include <errno.h> |
45 | |
13 | #include <assert.h> |
46 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
|
|
47 | # undef STACKGUARD |
|
|
48 | #endif |
|
|
49 | |
|
|
50 | #ifndef STACKGUARD |
|
|
51 | # define STACKGUARD 0 |
|
|
52 | #endif |
|
|
53 | |
14 | |
54 | #ifdef HAVE_MMAP |
15 | #ifdef HAVE_MMAP |
55 | # include <unistd.h> |
16 | # include <unistd.h> |
56 | # include <sys/mman.h> |
17 | # include <sys/mman.h> |
57 | # ifndef MAP_ANONYMOUS |
18 | # ifndef MAP_ANONYMOUS |
… | |
… | |
72 | #else |
33 | #else |
73 | # define PAGESIZE 0 |
34 | # define PAGESIZE 0 |
74 | # define BOOT_PAGESIZE (void)0 |
35 | # define BOOT_PAGESIZE (void)0 |
75 | #endif |
36 | #endif |
76 | |
37 | |
|
|
38 | #if CORO_USE_VALGRIND |
|
|
39 | # include <valgrind/valgrind.h> |
|
|
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
|
|
41 | #else |
|
|
42 | # define REGISTER_STACK(cctx,start,end) |
|
|
43 | #endif |
|
|
44 | |
|
|
45 | /* the maximum number of idle cctx that will be pooled */ |
|
|
46 | #define MAX_IDLE_CCTX 8 |
|
|
47 | |
|
|
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
|
|
49 | (PERL_REVISION > (a) \ |
|
|
50 | || (PERL_REVISION == (a) \ |
|
|
51 | && (PERL_VERSION > (b) \ |
|
|
52 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
|
|
53 | |
|
|
54 | #if !PERL_VERSION_ATLEAST (5,6,0) |
|
|
55 | # ifndef PL_ppaddr |
|
|
56 | # define PL_ppaddr ppaddr |
|
|
57 | # endif |
|
|
58 | # ifndef call_sv |
|
|
59 | # define call_sv perl_call_sv |
|
|
60 | # endif |
|
|
61 | # ifndef get_sv |
|
|
62 | # define get_sv perl_get_sv |
|
|
63 | # endif |
|
|
64 | # ifndef get_cv |
|
|
65 | # define get_cv perl_get_cv |
|
|
66 | # endif |
|
|
67 | # ifndef IS_PADGV |
|
|
68 | # define IS_PADGV(v) 0 |
|
|
69 | # endif |
|
|
70 | # ifndef IS_PADCONST |
|
|
71 | # define IS_PADCONST(v) 0 |
|
|
72 | # endif |
|
|
73 | #endif |
|
|
74 | |
|
|
75 | /* 5.8.7 */ |
|
|
76 | #ifndef SvRV_set |
|
|
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
|
|
78 | #endif |
|
|
79 | |
|
|
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
|
|
81 | # undef CORO_STACKGUARD |
|
|
82 | #endif |
|
|
83 | |
|
|
84 | #ifndef CORO_STACKGUARD |
|
|
85 | # define CORO_STACKGUARD 0 |
|
|
86 | #endif |
|
|
87 | |
|
|
88 | /* prefer perl internal functions over our own? */ |
|
|
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
|
|
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
|
|
91 | #endif |
|
|
92 | |
77 | /* The next macro should declare a variable stacklevel that contains and approximation |
93 | /* The next macro should declare a variable stacklevel that contains and approximation |
78 | * to the current C stack pointer. Its property is that it changes with each call |
94 | * to the current C stack pointer. Its property is that it changes with each call |
79 | * and should be unique. */ |
95 | * and should be unique. */ |
80 | #define dSTACKLEVEL int stacklevel |
96 | #define dSTACKLEVEL int stacklevel |
81 | #define STACKLEVEL ((void *)&stacklevel) |
97 | #define STACKLEVEL ((void *)&stacklevel) |
82 | |
98 | |
83 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
99 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
84 | |
100 | |
85 | #if __GNUC__ >= 3 |
101 | #if __GNUC__ >= 3 |
86 | # define attribute(x) __attribute__(x) |
102 | # define attribute(x) __attribute__(x) |
|
|
103 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
87 | #else |
104 | #else |
88 | # define attribute(x) |
105 | # define attribute(x) |
|
|
106 | # define BARRIER |
89 | #endif |
107 | #endif |
90 | |
108 | |
91 | #define NOINLINE attribute ((noinline)) |
109 | #define NOINLINE attribute ((noinline)) |
92 | |
110 | |
93 | #include "CoroAPI.h" |
111 | #include "CoroAPI.h" |
94 | |
|
|
95 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
|
|
96 | |
112 | |
97 | #ifdef USE_ITHREADS |
113 | #ifdef USE_ITHREADS |
98 | static perl_mutex coro_mutex; |
114 | static perl_mutex coro_mutex; |
99 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
115 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
100 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
116 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
101 | #else |
117 | #else |
102 | # define LOCK (void)0 |
118 | # define LOCK (void)0 |
103 | # define UNLOCK (void)0 |
119 | # define UNLOCK (void)0 |
104 | #endif |
120 | #endif |
105 | |
121 | |
|
|
122 | /* helper storage struct for Coro::AIO */ |
106 | struct io_state |
123 | struct io_state |
107 | { |
124 | { |
108 | int errorno; |
125 | int errorno; |
109 | I32 laststype; |
126 | I32 laststype; |
110 | int laststatval; |
127 | int laststatval; |
111 | Stat_t statcache; |
128 | Stat_t statcache; |
112 | }; |
129 | }; |
113 | |
130 | |
|
|
131 | static size_t coro_stacksize = CORO_STACKSIZE; |
114 | static struct CoroAPI coroapi; |
132 | static struct CoroAPI coroapi; |
115 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
|
|
134 | static JMPENV *main_top_env; |
116 | static HV *coro_state_stash, *coro_stash; |
135 | static HV *coro_state_stash, *coro_stash; |
117 | static SV *coro_mortal; /* will be freed after next transfer */ |
136 | static SV *coro_mortal; /* will be freed after next transfer */ |
118 | |
137 | |
119 | static struct coro_cctx *cctx_first; |
138 | static struct coro_cctx *cctx_first; |
120 | static int cctx_count, cctx_idle; |
139 | static int cctx_count, cctx_idle; |
… | |
… | |
123 | typedef struct coro_cctx { |
142 | typedef struct coro_cctx { |
124 | struct coro_cctx *next; |
143 | struct coro_cctx *next; |
125 | |
144 | |
126 | /* the stack */ |
145 | /* the stack */ |
127 | void *sptr; |
146 | void *sptr; |
128 | long ssize; /* positive == mmap, otherwise malloc */ |
147 | size_t ssize; |
129 | |
148 | |
130 | /* cpu state */ |
149 | /* cpu state */ |
131 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
150 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
|
|
151 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
132 | JMPENV *top_env; |
152 | JMPENV *top_env; |
133 | coro_context cctx; |
153 | coro_context cctx; |
134 | |
154 | |
135 | int inuse; |
|
|
136 | |
|
|
137 | #if USE_VALGRIND |
155 | #if CORO_USE_VALGRIND |
138 | int valgrind_id; |
156 | int valgrind_id; |
139 | #endif |
157 | #endif |
|
|
158 | char inuse, mapped; |
140 | } coro_cctx; |
159 | } coro_cctx; |
141 | |
160 | |
142 | enum { |
161 | enum { |
143 | CF_RUNNING = 0x0001, /* coroutine is running */ |
162 | CF_RUNNING = 0x0001, /* coroutine is running */ |
144 | CF_READY = 0x0002, /* coroutine is ready */ |
163 | CF_READY = 0x0002, /* coroutine is ready */ |
145 | CF_NEW = 0x0004, /* ahs never been switched to */ |
164 | CF_NEW = 0x0004, /* has never been switched to */ |
|
|
165 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
146 | }; |
166 | }; |
147 | |
167 | |
148 | /* this is a structure representing a perl-level coroutine */ |
168 | /* this is a structure representing a perl-level coroutine */ |
149 | struct coro { |
169 | struct coro { |
150 | /* the c coroutine allocated to this perl coroutine, if any */ |
170 | /* the c coroutine allocated to this perl coroutine, if any */ |
151 | coro_cctx *cctx; |
171 | coro_cctx *cctx; |
152 | |
172 | |
153 | /* data associated with this coroutine (initial args) */ |
173 | /* data associated with this coroutine (initial args) */ |
154 | AV *args; |
174 | AV *args; |
155 | int refcnt; |
175 | int refcnt; |
156 | int flags; |
176 | int save; /* CORO_SAVE flags */ |
|
|
177 | int flags; /* CF_ flags */ |
157 | |
178 | |
158 | /* optionally saved, might be zero */ |
179 | /* optionally saved, might be zero */ |
159 | AV *defav; |
180 | AV *defav; /* @_ */ |
160 | SV *defsv; |
181 | SV *defsv; /* $_ */ |
161 | SV *errsv; |
182 | SV *errsv; /* $@ */ |
|
|
183 | GV *deffh; /* default filehandle */ |
|
|
184 | SV *irssv; /* $/ */ |
|
|
185 | SV *irssv_sv; /* real $/ cache */ |
162 | |
186 | |
163 | #define VAR(name,type) type name; |
187 | #define VAR(name,type) type name; |
164 | # include "state.h" |
188 | # include "state.h" |
165 | #undef VAR |
189 | #undef VAR |
166 | |
190 | |
… | |
… | |
169 | }; |
193 | }; |
170 | |
194 | |
171 | typedef struct coro *Coro__State; |
195 | typedef struct coro *Coro__State; |
172 | typedef struct coro *Coro__State_or_hashref; |
196 | typedef struct coro *Coro__State_or_hashref; |
173 | |
197 | |
|
|
198 | /** Coro ********************************************************************/ |
|
|
199 | |
|
|
200 | #define PRIO_MAX 3 |
|
|
201 | #define PRIO_HIGH 1 |
|
|
202 | #define PRIO_NORMAL 0 |
|
|
203 | #define PRIO_LOW -1 |
|
|
204 | #define PRIO_IDLE -3 |
|
|
205 | #define PRIO_MIN -4 |
|
|
206 | |
|
|
207 | /* for Coro.pm */ |
|
|
208 | static SV *coro_current; |
|
|
209 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
210 | static int coro_nready; |
|
|
211 | |
|
|
212 | /** lowlevel stuff **********************************************************/ |
|
|
213 | |
174 | static AV * |
214 | static AV * |
175 | coro_clone_padlist (CV *cv) |
215 | coro_clone_padlist (pTHX_ CV *cv) |
176 | { |
216 | { |
177 | AV *padlist = CvPADLIST (cv); |
217 | AV *padlist = CvPADLIST (cv); |
178 | AV *newpadlist, *newpad; |
218 | AV *newpadlist, *newpad; |
179 | |
219 | |
180 | newpadlist = newAV (); |
220 | newpadlist = newAV (); |
… | |
… | |
192 | |
232 | |
193 | return newpadlist; |
233 | return newpadlist; |
194 | } |
234 | } |
195 | |
235 | |
196 | static void |
236 | static void |
197 | free_padlist (AV *padlist) |
237 | free_padlist (pTHX_ AV *padlist) |
198 | { |
238 | { |
199 | /* may be during global destruction */ |
239 | /* may be during global destruction */ |
200 | if (SvREFCNT (padlist)) |
240 | if (SvREFCNT (padlist)) |
201 | { |
241 | { |
202 | I32 i = AvFILLp (padlist); |
242 | I32 i = AvFILLp (padlist); |
… | |
… | |
223 | AV *padlist; |
263 | AV *padlist; |
224 | AV *av = (AV *)mg->mg_obj; |
264 | AV *av = (AV *)mg->mg_obj; |
225 | |
265 | |
226 | /* casting is fun. */ |
266 | /* casting is fun. */ |
227 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
267 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
228 | free_padlist (padlist); |
268 | free_padlist (aTHX_ padlist); |
229 | |
269 | |
230 | SvREFCNT_dec (av); |
270 | SvREFCNT_dec (av); |
231 | |
271 | |
232 | return 0; |
272 | return 0; |
233 | } |
273 | } |
… | |
… | |
243 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
283 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
244 | : 0 |
284 | : 0 |
245 | |
285 | |
246 | /* the next two functions merely cache the padlists */ |
286 | /* the next two functions merely cache the padlists */ |
247 | static void |
287 | static void |
248 | get_padlist (CV *cv) |
288 | get_padlist (pTHX_ CV *cv) |
249 | { |
289 | { |
250 | MAGIC *mg = CORO_MAGIC (cv); |
290 | MAGIC *mg = CORO_MAGIC (cv); |
251 | AV *av; |
291 | AV *av; |
252 | |
292 | |
253 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
293 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
254 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
294 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
255 | else |
295 | else |
256 | { |
296 | { |
257 | #if 0 |
297 | #if CORO_PREFER_PERL_FUNCTIONS |
258 | /* this is probably cleaner, but also slower? */ |
298 | /* this is probably cleaner, but also slower? */ |
259 | CV *cp = Perl_cv_clone (cv); |
299 | CV *cp = Perl_cv_clone (cv); |
260 | CvPADLIST (cv) = CvPADLIST (cp); |
300 | CvPADLIST (cv) = CvPADLIST (cp); |
261 | CvPADLIST (cp) = 0; |
301 | CvPADLIST (cp) = 0; |
262 | SvREFCNT_dec (cp); |
302 | SvREFCNT_dec (cp); |
263 | #else |
303 | #else |
264 | CvPADLIST (cv) = coro_clone_padlist (cv); |
304 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
265 | #endif |
305 | #endif |
266 | } |
306 | } |
267 | } |
307 | } |
268 | |
308 | |
269 | static void |
309 | static void |
270 | put_padlist (CV *cv) |
310 | put_padlist (pTHX_ CV *cv) |
271 | { |
311 | { |
272 | MAGIC *mg = CORO_MAGIC (cv); |
312 | MAGIC *mg = CORO_MAGIC (cv); |
273 | AV *av; |
313 | AV *av; |
274 | |
314 | |
275 | if (!mg) |
315 | if (!mg) |
… | |
… | |
286 | av_extend (av, AvMAX (av) + 1); |
326 | av_extend (av, AvMAX (av) + 1); |
287 | |
327 | |
288 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
328 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
289 | } |
329 | } |
290 | |
330 | |
|
|
331 | /** load & save, init *******************************************************/ |
|
|
332 | |
291 | #define SB do { |
333 | #define SB do { |
292 | #define SE } while (0) |
334 | #define SE } while (0) |
293 | |
335 | |
294 | #define LOAD(state) load_state ((state)) |
|
|
295 | #define SAVE(state,flags) save_state ((state),(flags)) |
|
|
296 | |
|
|
297 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
336 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
298 | |
337 | |
299 | static void |
338 | static void |
300 | load_state (Coro__State c) |
339 | load_perl (pTHX_ Coro__State c) |
301 | { |
340 | { |
302 | #define VAR(name,type) PL_ ## name = c->name; |
341 | #define VAR(name,type) PL_ ## name = c->name; |
303 | # include "state.h" |
342 | # include "state.h" |
304 | #undef VAR |
343 | #undef VAR |
305 | |
344 | |
306 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
345 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
307 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
346 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
308 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
347 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
348 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
349 | |
|
|
350 | if (c->irssv) |
|
|
351 | { |
|
|
352 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
353 | { |
|
|
354 | SvREFCNT_dec (c->irssv); |
|
|
355 | c->irssv = 0; |
|
|
356 | } |
|
|
357 | else |
|
|
358 | { |
|
|
359 | REPLACE_SV (PL_rs, c->irssv); |
|
|
360 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
361 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
362 | } |
|
|
363 | } |
309 | |
364 | |
310 | { |
365 | { |
311 | dSP; |
366 | dSP; |
312 | CV *cv; |
367 | CV *cv; |
313 | |
368 | |
314 | /* now do the ugly restore mess */ |
369 | /* now do the ugly restore mess */ |
315 | while ((cv = (CV *)POPs)) |
370 | while ((cv = (CV *)POPs)) |
316 | { |
371 | { |
317 | put_padlist (cv); /* mark this padlist as available */ |
372 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
318 | CvDEPTH (cv) = PTR2IV (POPs); |
373 | CvDEPTH (cv) = PTR2IV (POPs); |
319 | CvPADLIST (cv) = (AV *)POPs; |
374 | CvPADLIST (cv) = (AV *)POPs; |
320 | } |
375 | } |
321 | |
376 | |
322 | PUTBACK; |
377 | PUTBACK; |
323 | } |
378 | } |
|
|
379 | assert (!PL_comppad || AvARRAY (PL_comppad));//D |
324 | } |
380 | } |
325 | |
381 | |
326 | static void |
382 | static void |
327 | save_state (Coro__State c, int flags) |
383 | save_perl (pTHX_ Coro__State c) |
328 | { |
384 | { |
|
|
385 | assert (!PL_comppad || AvARRAY (PL_comppad));//D |
329 | { |
386 | { |
330 | dSP; |
387 | dSP; |
331 | I32 cxix = cxstack_ix; |
388 | I32 cxix = cxstack_ix; |
332 | PERL_CONTEXT *ccstk = cxstack; |
389 | PERL_CONTEXT *ccstk = cxstack; |
333 | PERL_SI *top_si = PL_curstackinfo; |
390 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
335 | /* |
392 | /* |
336 | * the worst thing you can imagine happens first - we have to save |
393 | * the worst thing you can imagine happens first - we have to save |
337 | * (and reinitialize) all cv's in the whole callchain :( |
394 | * (and reinitialize) all cv's in the whole callchain :( |
338 | */ |
395 | */ |
339 | |
396 | |
|
|
397 | EXTEND (SP, 3 + 1); |
340 | PUSHs (Nullsv); |
398 | PUSHs (Nullsv); |
341 | /* this loop was inspired by pp_caller */ |
399 | /* this loop was inspired by pp_caller */ |
342 | for (;;) |
400 | for (;;) |
343 | { |
401 | { |
344 | while (cxix >= 0) |
402 | while (cxix >= 0) |
… | |
… | |
350 | CV *cv = cx->blk_sub.cv; |
408 | CV *cv = cx->blk_sub.cv; |
351 | |
409 | |
352 | if (CvDEPTH (cv)) |
410 | if (CvDEPTH (cv)) |
353 | { |
411 | { |
354 | EXTEND (SP, 3); |
412 | EXTEND (SP, 3); |
355 | |
|
|
356 | PUSHs ((SV *)CvPADLIST (cv)); |
413 | PUSHs ((SV *)CvPADLIST (cv)); |
357 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
414 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
358 | PUSHs ((SV *)cv); |
415 | PUSHs ((SV *)cv); |
359 | |
416 | |
360 | CvDEPTH (cv) = 0; |
417 | CvDEPTH (cv) = 0; |
361 | get_padlist (cv); |
418 | get_padlist (aTHX_ cv); |
362 | } |
419 | } |
363 | } |
420 | } |
364 | #ifdef CXt_FORMAT |
|
|
365 | else if (CxTYPE (cx) == CXt_FORMAT) |
|
|
366 | { |
|
|
367 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
368 | /* my bold guess is as a simple, plain sub... */ |
|
|
369 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
370 | } |
|
|
371 | #endif |
|
|
372 | } |
421 | } |
373 | |
422 | |
374 | if (top_si->si_type == PERLSI_MAIN) |
423 | if (top_si->si_type == PERLSI_MAIN) |
375 | break; |
424 | break; |
376 | |
425 | |
… | |
… | |
380 | } |
429 | } |
381 | |
430 | |
382 | PUTBACK; |
431 | PUTBACK; |
383 | } |
432 | } |
384 | |
433 | |
385 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
434 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
386 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
435 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
387 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
436 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
|
|
437 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
|
|
438 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
388 | |
439 | |
389 | #define VAR(name,type)c->name = PL_ ## name; |
440 | #define VAR(name,type)c->name = PL_ ## name; |
390 | # include "state.h" |
441 | # include "state.h" |
391 | #undef VAR |
442 | #undef VAR |
392 | } |
443 | } |
… | |
… | |
395 | * allocate various perl stacks. This is an exact copy |
446 | * allocate various perl stacks. This is an exact copy |
396 | * of perl.c:init_stacks, except that it uses less memory |
447 | * of perl.c:init_stacks, except that it uses less memory |
397 | * on the (sometimes correct) assumption that coroutines do |
448 | * on the (sometimes correct) assumption that coroutines do |
398 | * not usually need a lot of stackspace. |
449 | * not usually need a lot of stackspace. |
399 | */ |
450 | */ |
|
|
451 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
452 | # define coro_init_stacks init_stacks |
|
|
453 | #else |
400 | static void |
454 | static void |
401 | coro_init_stacks () |
455 | coro_init_stacks (pTHX) |
402 | { |
456 | { |
403 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
457 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
404 | PL_curstackinfo->si_type = PERLSI_MAIN; |
458 | PL_curstackinfo->si_type = PERLSI_MAIN; |
405 | PL_curstack = PL_curstackinfo->si_stack; |
459 | PL_curstack = PL_curstackinfo->si_stack; |
406 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
460 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
… | |
… | |
434 | New(54,PL_retstack,16,OP*); |
488 | New(54,PL_retstack,16,OP*); |
435 | PL_retstack_ix = 0; |
489 | PL_retstack_ix = 0; |
436 | PL_retstack_max = 16; |
490 | PL_retstack_max = 16; |
437 | #endif |
491 | #endif |
438 | } |
492 | } |
|
|
493 | #endif |
439 | |
494 | |
440 | /* |
495 | /* |
441 | * destroy the stacks, the callchain etc... |
496 | * destroy the stacks, the callchain etc... |
442 | */ |
497 | */ |
443 | static void |
498 | static void |
444 | coro_destroy_stacks () |
499 | coro_destroy_stacks (pTHX) |
445 | { |
500 | { |
446 | if (!IN_DESTRUCT) |
501 | if (!IN_DESTRUCT) |
447 | { |
502 | { |
448 | /* is this ugly, I ask? */ |
503 | /* restore all saved variables and stuff */ |
449 | LEAVE_SCOPE (0); |
504 | LEAVE_SCOPE (0); |
|
|
505 | assert (PL_tmps_floor == -1); |
450 | |
506 | |
451 | /* sure it is, but more important: is it correct?? :/ */ |
507 | /* free all temporaries */ |
452 | FREETMPS; |
508 | FREETMPS; |
|
|
509 | assert (PL_tmps_ix == -1); |
453 | |
510 | |
|
|
511 | /* unwind all extra stacks */ |
454 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
512 | POPSTACK_TO (PL_mainstack); |
|
|
513 | |
|
|
514 | /* unwind main stack */ |
|
|
515 | dounwind (-1); |
455 | } |
516 | } |
456 | |
517 | |
457 | while (PL_curstackinfo->si_next) |
518 | while (PL_curstackinfo->si_next) |
458 | PL_curstackinfo = PL_curstackinfo->si_next; |
519 | PL_curstackinfo = PL_curstackinfo->si_next; |
459 | |
520 | |
460 | while (PL_curstackinfo) |
521 | while (PL_curstackinfo) |
461 | { |
522 | { |
462 | PERL_SI *p = PL_curstackinfo->si_prev; |
523 | PERL_SI *p = PL_curstackinfo->si_prev; |
463 | |
524 | |
464 | { /*D*//*remove*/ |
|
|
465 | dSP; |
|
|
466 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
467 | PUTBACK; /* possibly superfluous */ |
|
|
468 | } |
|
|
469 | |
|
|
470 | if (!IN_DESTRUCT) |
525 | if (!IN_DESTRUCT) |
471 | { |
|
|
472 | dounwind (-1);/*D*//*remove*/ |
|
|
473 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
526 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
474 | } |
|
|
475 | |
527 | |
476 | Safefree (PL_curstackinfo->si_cxstack); |
528 | Safefree (PL_curstackinfo->si_cxstack); |
477 | Safefree (PL_curstackinfo); |
529 | Safefree (PL_curstackinfo); |
478 | PL_curstackinfo = p; |
530 | PL_curstackinfo = p; |
479 | } |
531 | } |
… | |
… | |
485 | #if !PERL_VERSION_ATLEAST (5,9,0) |
537 | #if !PERL_VERSION_ATLEAST (5,9,0) |
486 | Safefree (PL_retstack); |
538 | Safefree (PL_retstack); |
487 | #endif |
539 | #endif |
488 | } |
540 | } |
489 | |
541 | |
|
|
542 | /** coroutine stack handling ************************************************/ |
|
|
543 | |
490 | static void |
544 | static void |
491 | setup_coro (struct coro *coro) |
545 | setup_coro (pTHX_ struct coro *coro) |
492 | { |
546 | { |
493 | /* |
547 | /* |
494 | * emulate part of the perl startup here. |
548 | * emulate part of the perl startup here. |
495 | */ |
549 | */ |
496 | |
|
|
497 | coro_init_stacks (); |
550 | coro_init_stacks (aTHX); |
498 | |
551 | |
499 | PL_curcop = &PL_compiling; |
552 | PL_curcop = &PL_compiling; |
500 | PL_in_eval = EVAL_NULL; |
553 | PL_in_eval = EVAL_NULL; |
|
|
554 | PL_comppad = 0; |
501 | PL_curpm = 0; |
555 | PL_curpm = 0; |
502 | PL_localizing = 0; |
556 | PL_localizing = 0; |
503 | PL_dirty = 0; |
557 | PL_dirty = 0; |
504 | PL_restartop = 0; |
558 | PL_restartop = 0; |
505 | |
559 | |
… | |
… | |
524 | |
578 | |
525 | ENTER; /* necessary e.g. for dounwind */ |
579 | ENTER; /* necessary e.g. for dounwind */ |
526 | } |
580 | } |
527 | |
581 | |
528 | static void |
582 | static void |
529 | free_coro_mortal () |
583 | free_coro_mortal (pTHX) |
530 | { |
584 | { |
531 | if (coro_mortal) |
585 | if (coro_mortal) |
532 | { |
586 | { |
533 | SvREFCNT_dec (coro_mortal); |
587 | SvREFCNT_dec (coro_mortal); |
534 | coro_mortal = 0; |
588 | coro_mortal = 0; |
535 | } |
589 | } |
536 | } |
590 | } |
537 | |
591 | |
538 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
592 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
593 | /* _cctx_init shoukld be careful, as it could be called at almost any time */ |
|
|
594 | /* during execution of a pelr program */ |
539 | static void NOINLINE |
595 | static void NOINLINE |
540 | prepare_cctx (coro_cctx *cctx) |
596 | prepare_cctx (pTHX_ coro_cctx *cctx) |
541 | { |
597 | { |
542 | dSP; |
598 | dSP; |
543 | LOGOP myop; |
599 | LOGOP myop; |
544 | |
600 | |
545 | Zero (&myop, 1, LOGOP); |
601 | Zero (&myop, 1, LOGOP); |
… | |
… | |
554 | PL_op = (OP *)&myop; |
610 | PL_op = (OP *)&myop; |
555 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
611 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
556 | SPAGAIN; |
612 | SPAGAIN; |
557 | } |
613 | } |
558 | |
614 | |
|
|
615 | /* |
|
|
616 | * this is a _very_ stripped down perl interpreter ;) |
|
|
617 | */ |
559 | static void |
618 | static void |
560 | coro_run (void *arg) |
619 | coro_run (void *arg) |
561 | { |
620 | { |
|
|
621 | dTHX; |
|
|
622 | |
562 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
623 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
563 | UNLOCK; |
624 | UNLOCK; |
564 | |
625 | |
565 | /* |
|
|
566 | * this is a _very_ stripped down perl interpreter ;) |
|
|
567 | */ |
|
|
568 | PL_top_env = &PL_start_env; |
626 | PL_top_env = &PL_start_env; |
569 | |
627 | |
570 | /* inject call to cctx_init */ |
628 | /* inject a fake subroutine call to cctx_init */ |
571 | prepare_cctx ((coro_cctx *)arg); |
629 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
572 | |
630 | |
573 | /* somebody will hit me for both perl_run and PL_restartop */ |
631 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
574 | PL_restartop = PL_op; |
632 | PL_restartop = PL_op; |
575 | perl_run (PL_curinterp); |
633 | perl_run (PL_curinterp); |
576 | |
634 | |
577 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
635 | /* If perl-run returns we assume exit() was being called, which */ |
578 | abort (); |
636 | /* seems to be the only valid (non-bug) reason for perl_run to return. */ |
|
|
637 | /* We try to exit by jumping to the bootstrap-time "top" top_env, as */ |
|
|
638 | /* we cannot restore the "main" coroutine as Coro has no such concept */ |
|
|
639 | PL_top_env = main_top_env; |
|
|
640 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
579 | } |
641 | } |
580 | |
642 | |
581 | static coro_cctx * |
643 | static coro_cctx * |
582 | cctx_new () |
644 | cctx_new () |
583 | { |
645 | { |
584 | coro_cctx *cctx; |
646 | coro_cctx *cctx; |
|
|
647 | void *stack_start; |
|
|
648 | size_t stack_size; |
585 | |
649 | |
586 | ++cctx_count; |
650 | ++cctx_count; |
587 | |
651 | |
588 | New (0, cctx, 1, coro_cctx); |
652 | Newz (0, cctx, 1, coro_cctx); |
589 | |
653 | |
590 | #if HAVE_MMAP |
654 | #if HAVE_MMAP |
591 | |
655 | |
592 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
656 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
593 | /* mmap supposedly does allocate-on-write for us */ |
657 | /* mmap supposedly does allocate-on-write for us */ |
594 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
658 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
595 | |
659 | |
596 | if (cctx->sptr == (void *)-1) |
660 | if (cctx->sptr != (void *)-1) |
597 | { |
|
|
598 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
599 | _exit (EXIT_FAILURE); |
|
|
600 | } |
661 | { |
601 | |
|
|
602 | # if STACKGUARD |
662 | # if CORO_STACKGUARD |
603 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
663 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
604 | # endif |
664 | # endif |
|
|
665 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
666 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
667 | cctx->mapped = 1; |
|
|
668 | } |
|
|
669 | else |
|
|
670 | #endif |
|
|
671 | { |
|
|
672 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
673 | New (0, cctx->sptr, coro_stacksize, long); |
605 | |
674 | |
606 | #else |
|
|
607 | |
|
|
608 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
609 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
610 | |
|
|
611 | if (!cctx->sptr) |
675 | if (!cctx->sptr) |
612 | { |
676 | { |
613 | perror ("FATAL: unable to malloc stack for coroutine"); |
677 | perror ("FATAL: unable to allocate stack for coroutine"); |
614 | _exit (EXIT_FAILURE); |
678 | _exit (EXIT_FAILURE); |
615 | } |
679 | } |
616 | |
680 | |
617 | #endif |
681 | stack_start = cctx->sptr; |
|
|
682 | stack_size = cctx->ssize; |
|
|
683 | } |
618 | |
684 | |
619 | #if USE_VALGRIND |
685 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
620 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
621 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
622 | cctx->ssize + (char *)cctx->sptr |
|
|
623 | ); |
|
|
624 | #endif |
|
|
625 | |
|
|
626 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
686 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
627 | |
687 | |
628 | return cctx; |
688 | return cctx; |
629 | } |
689 | } |
630 | |
690 | |
631 | static void |
691 | static void |
… | |
… | |
634 | if (!cctx) |
694 | if (!cctx) |
635 | return; |
695 | return; |
636 | |
696 | |
637 | --cctx_count; |
697 | --cctx_count; |
638 | |
698 | |
639 | #if USE_VALGRIND |
699 | #if CORO_USE_VALGRIND |
640 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
700 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
641 | #endif |
701 | #endif |
642 | |
702 | |
643 | #if HAVE_MMAP |
703 | #if HAVE_MMAP |
|
|
704 | if (cctx->mapped) |
644 | munmap (cctx->sptr, cctx->ssize); |
705 | munmap (cctx->sptr, cctx->ssize); |
645 | #else |
706 | else |
|
|
707 | #endif |
646 | Safefree (cctx->sptr); |
708 | Safefree (cctx->sptr); |
647 | #endif |
|
|
648 | |
709 | |
649 | Safefree (cctx); |
710 | Safefree (cctx); |
650 | } |
711 | } |
651 | |
712 | |
652 | static coro_cctx * |
713 | static coro_cctx * |
653 | cctx_get () |
714 | cctx_get (pTHX) |
654 | { |
715 | { |
655 | coro_cctx *cctx; |
|
|
656 | |
|
|
657 | if (cctx_first) |
716 | while (cctx_first) |
658 | { |
717 | { |
659 | cctx = cctx_first; |
718 | coro_cctx *cctx = cctx_first; |
660 | cctx_first = cctx->next; |
719 | cctx_first = cctx->next; |
661 | --cctx_idle; |
720 | --cctx_idle; |
|
|
721 | |
|
|
722 | if (cctx->ssize >= coro_stacksize) |
|
|
723 | return cctx; |
|
|
724 | |
|
|
725 | cctx_destroy (cctx); |
662 | } |
726 | } |
663 | else |
727 | |
664 | { |
|
|
665 | cctx = cctx_new (); |
|
|
666 | PL_op = PL_op->op_next; |
728 | PL_op = PL_op->op_next; |
667 | } |
|
|
668 | |
|
|
669 | return cctx; |
729 | return cctx_new (); |
670 | } |
730 | } |
671 | |
731 | |
672 | static void |
732 | static void |
673 | cctx_put (coro_cctx *cctx) |
733 | cctx_put (coro_cctx *cctx) |
674 | { |
734 | { |
… | |
… | |
686 | ++cctx_idle; |
746 | ++cctx_idle; |
687 | cctx->next = cctx_first; |
747 | cctx->next = cctx_first; |
688 | cctx_first = cctx; |
748 | cctx_first = cctx; |
689 | } |
749 | } |
690 | |
750 | |
|
|
751 | /** coroutine switching *****************************************************/ |
|
|
752 | |
691 | /* never call directly, always through the coro_state_transfer global variable */ |
753 | /* never call directly, always through the coro_state_transfer global variable */ |
692 | static void NOINLINE |
754 | static void NOINLINE |
693 | transfer (struct coro *prev, struct coro *next, int flags) |
755 | transfer (pTHX_ struct coro *prev, struct coro *next) |
694 | { |
756 | { |
695 | dSTACKLEVEL; |
757 | dSTACKLEVEL; |
696 | |
758 | |
697 | /* sometimes transfer is only called to set idle_sp */ |
759 | /* sometimes transfer is only called to set idle_sp */ |
698 | if (flags == TRANSFER_SET_STACKLEVEL) |
760 | if (!next) |
|
|
761 | { |
699 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
762 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
763 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
764 | } |
700 | else if (prev != next) |
765 | else if (prev != next) |
701 | { |
766 | { |
702 | coro_cctx *prev__cctx; |
767 | coro_cctx *prev__cctx; |
703 | |
768 | |
704 | if (prev->flags & CF_NEW) |
769 | if (prev->flags & CF_NEW) |
… | |
… | |
715 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
780 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
716 | |
781 | |
717 | if (next->flags & CF_RUNNING) |
782 | if (next->flags & CF_RUNNING) |
718 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
783 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
719 | |
784 | |
|
|
785 | if (next->flags & CF_DESTROYED) |
|
|
786 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
787 | |
720 | prev->flags &= ~CF_RUNNING; |
788 | prev->flags &= ~CF_RUNNING; |
721 | next->flags |= CF_RUNNING; |
789 | next->flags |= CF_RUNNING; |
722 | |
790 | |
723 | LOCK; |
791 | LOCK; |
724 | |
792 | |
725 | if (next->flags & CF_NEW) |
793 | if (next->flags & CF_NEW) |
726 | { |
794 | { |
727 | /* need to start coroutine */ |
795 | /* need to start coroutine */ |
728 | next->flags &= ~CF_NEW; |
796 | next->flags &= ~CF_NEW; |
729 | /* first get rid of the old state */ |
797 | /* first get rid of the old state */ |
730 | SAVE (prev, -1); |
798 | save_perl (aTHX_ prev); |
731 | /* setup coroutine call */ |
799 | /* setup coroutine call */ |
732 | setup_coro (next); |
800 | setup_coro (aTHX_ next); |
733 | /* need a new stack */ |
801 | /* need a new stack */ |
734 | assert (!next->stack); |
802 | assert (!next->cctx); |
735 | } |
803 | } |
736 | else |
804 | else |
737 | { |
805 | { |
738 | /* coroutine already started */ |
806 | /* coroutine already started */ |
739 | SAVE (prev, flags); |
807 | save_perl (aTHX_ prev); |
740 | LOAD (next); |
808 | load_perl (aTHX_ next); |
741 | } |
809 | } |
742 | |
810 | |
743 | prev__cctx = prev->cctx; |
811 | prev__cctx = prev->cctx; |
744 | |
812 | |
745 | /* possibly "free" the cctx */ |
813 | /* possibly "free" the cctx */ |
746 | if (prev__cctx->idle_sp == STACKLEVEL) |
814 | if (prev__cctx->idle_sp == STACKLEVEL) |
747 | { |
815 | { |
748 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
816 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
749 | assert (PL_top_env == prev__cctx->top_env); |
817 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
750 | |
818 | |
751 | prev->cctx = 0; |
819 | prev->cctx = 0; |
752 | |
820 | |
753 | cctx_put (prev__cctx); |
821 | cctx_put (prev__cctx); |
754 | prev__cctx->inuse = 0; |
822 | prev__cctx->inuse = 0; |
755 | } |
823 | } |
756 | |
824 | |
757 | if (!next->cctx) |
825 | if (!next->cctx) |
758 | { |
826 | { |
759 | next->cctx = cctx_get (); |
827 | next->cctx = cctx_get (aTHX); |
760 | assert (!next->cctx->inuse); |
828 | assert (!next->cctx->inuse); |
761 | next->cctx->inuse = 1; |
829 | next->cctx->inuse = 1; |
762 | } |
830 | } |
763 | |
831 | |
764 | if (prev__cctx != next->cctx) |
832 | if (prev__cctx != next->cctx) |
… | |
… | |
766 | prev__cctx->top_env = PL_top_env; |
834 | prev__cctx->top_env = PL_top_env; |
767 | PL_top_env = next->cctx->top_env; |
835 | PL_top_env = next->cctx->top_env; |
768 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
836 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
769 | } |
837 | } |
770 | |
838 | |
771 | free_coro_mortal (); |
839 | free_coro_mortal (aTHX); |
772 | |
|
|
773 | UNLOCK; |
840 | UNLOCK; |
774 | } |
841 | } |
775 | } |
842 | } |
776 | |
843 | |
777 | struct transfer_args |
844 | struct transfer_args |
778 | { |
845 | { |
779 | struct coro *prev, *next; |
846 | struct coro *prev, *next; |
780 | int flags; |
|
|
781 | }; |
847 | }; |
782 | |
848 | |
783 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
849 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
784 | |
850 | |
|
|
851 | /** high level stuff ********************************************************/ |
|
|
852 | |
785 | static void |
853 | static int |
786 | coro_state_destroy (struct coro *coro) |
854 | coro_state_destroy (pTHX_ struct coro *coro) |
787 | { |
855 | { |
788 | if (coro->refcnt--) |
856 | if (coro->flags & CF_DESTROYED) |
789 | return; |
857 | return 0; |
|
|
858 | |
|
|
859 | coro->flags |= CF_DESTROYED; |
|
|
860 | |
|
|
861 | if (coro->flags & CF_READY) |
|
|
862 | { |
|
|
863 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
864 | /* alternative: look through all ready queues and remove the coro */ |
|
|
865 | LOCK; |
|
|
866 | --coro_nready; |
|
|
867 | UNLOCK; |
|
|
868 | } |
|
|
869 | else |
|
|
870 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
790 | |
871 | |
791 | if (coro->mainstack && coro->mainstack != main_mainstack) |
872 | if (coro->mainstack && coro->mainstack != main_mainstack) |
792 | { |
873 | { |
793 | struct coro temp; |
874 | struct coro temp; |
|
|
875 | |
|
|
876 | assert (!(coro->flags & CF_RUNNING)); |
|
|
877 | |
|
|
878 | Zero (&temp, 1, struct coro); |
|
|
879 | temp.save = CORO_SAVE_DEF; |
794 | |
880 | |
795 | if (coro->flags & CF_RUNNING) |
881 | if (coro->flags & CF_RUNNING) |
796 | croak ("FATAL: tried to destroy currently running coroutine"); |
882 | croak ("FATAL: tried to destroy currently running coroutine"); |
797 | |
883 | |
798 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
884 | save_perl (aTHX_ &temp); |
799 | LOAD (coro); |
885 | load_perl (aTHX_ coro); |
800 | |
886 | |
801 | coro_destroy_stacks (); |
887 | coro_destroy_stacks (aTHX); |
802 | |
888 | |
803 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
889 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
804 | |
890 | |
805 | coro->mainstack = 0; |
891 | coro->mainstack = 0; |
806 | } |
892 | } |
807 | |
893 | |
808 | cctx_destroy (coro->cctx); |
894 | cctx_destroy (coro->cctx); |
809 | SvREFCNT_dec (coro->args); |
895 | SvREFCNT_dec (coro->args); |
810 | Safefree (coro); |
896 | |
|
|
897 | return 1; |
811 | } |
898 | } |
812 | |
899 | |
813 | static int |
900 | static int |
814 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
901 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
815 | { |
902 | { |
816 | struct coro *coro = (struct coro *)mg->mg_ptr; |
903 | struct coro *coro = (struct coro *)mg->mg_ptr; |
817 | mg->mg_ptr = 0; |
904 | mg->mg_ptr = 0; |
818 | |
905 | |
|
|
906 | if (--coro->refcnt < 0) |
|
|
907 | { |
819 | coro_state_destroy (coro); |
908 | coro_state_destroy (aTHX_ coro); |
|
|
909 | Safefree (coro); |
|
|
910 | } |
820 | |
911 | |
821 | return 0; |
912 | return 0; |
822 | } |
913 | } |
823 | |
914 | |
824 | static int |
915 | static int |
… | |
… | |
831 | return 0; |
922 | return 0; |
832 | } |
923 | } |
833 | |
924 | |
834 | static MGVTBL coro_state_vtbl = { |
925 | static MGVTBL coro_state_vtbl = { |
835 | 0, 0, 0, 0, |
926 | 0, 0, 0, 0, |
836 | coro_state_clear, |
927 | coro_state_free, |
837 | 0, |
928 | 0, |
838 | #ifdef MGf_DUP |
929 | #ifdef MGf_DUP |
839 | coro_state_dup, |
930 | coro_state_dup, |
840 | #else |
931 | #else |
841 | # define MGf_DUP 0 |
932 | # define MGf_DUP 0 |
842 | #endif |
933 | #endif |
843 | }; |
934 | }; |
844 | |
935 | |
845 | static struct coro * |
936 | static struct coro * |
846 | SvSTATE (SV *coro) |
937 | SvSTATE_ (pTHX_ SV *coro) |
847 | { |
938 | { |
848 | HV *stash; |
939 | HV *stash; |
849 | MAGIC *mg; |
940 | MAGIC *mg; |
850 | |
941 | |
851 | if (SvROK (coro)) |
942 | if (SvROK (coro)) |
… | |
… | |
857 | /* very slow, but rare, check */ |
948 | /* very slow, but rare, check */ |
858 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
949 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
859 | croak ("Coro::State object required"); |
950 | croak ("Coro::State object required"); |
860 | } |
951 | } |
861 | |
952 | |
862 | mg = SvMAGIC (coro); |
953 | mg = CORO_MAGIC (coro); |
863 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
864 | return (struct coro *)mg->mg_ptr; |
954 | return (struct coro *)mg->mg_ptr; |
865 | } |
955 | } |
866 | |
956 | |
|
|
957 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
958 | |
867 | static void |
959 | static void |
868 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
960 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
869 | { |
961 | { |
870 | ta->prev = SvSTATE (prev); |
962 | ta->prev = SvSTATE (prev_sv); |
871 | ta->next = SvSTATE (next); |
963 | ta->next = SvSTATE (next_sv); |
872 | ta->flags = flags; |
|
|
873 | } |
964 | } |
874 | |
965 | |
875 | static void |
966 | static void |
876 | api_transfer (SV *prev, SV *next, int flags) |
967 | api_transfer (SV *prev_sv, SV *next_sv) |
877 | { |
968 | { |
|
|
969 | dTHX; |
878 | struct transfer_args ta; |
970 | struct transfer_args ta; |
879 | |
971 | |
880 | prepare_transfer (&ta, prev, next, flags); |
972 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
881 | TRANSFER (ta); |
973 | TRANSFER (ta); |
882 | } |
974 | } |
883 | |
975 | |
|
|
976 | static int |
|
|
977 | api_save (SV *coro_sv, int new_save) |
|
|
978 | { |
|
|
979 | dTHX; |
|
|
980 | struct coro *coro = SvSTATE (coro_sv); |
|
|
981 | int old_save = coro->save; |
|
|
982 | |
|
|
983 | if (new_save >= 0) |
|
|
984 | coro->save = new_save; |
|
|
985 | |
|
|
986 | return old_save; |
|
|
987 | } |
|
|
988 | |
884 | /** Coro ********************************************************************/ |
989 | /** Coro ********************************************************************/ |
885 | |
990 | |
886 | #define PRIO_MAX 3 |
|
|
887 | #define PRIO_HIGH 1 |
|
|
888 | #define PRIO_NORMAL 0 |
|
|
889 | #define PRIO_LOW -1 |
|
|
890 | #define PRIO_IDLE -3 |
|
|
891 | #define PRIO_MIN -4 |
|
|
892 | |
|
|
893 | /* for Coro.pm */ |
|
|
894 | static SV *coro_current; |
|
|
895 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
896 | static int coro_nready; |
|
|
897 | |
|
|
898 | static void |
991 | static void |
899 | coro_enq (SV *coro_sv) |
992 | coro_enq (pTHX_ SV *coro_sv) |
900 | { |
993 | { |
901 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
994 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
902 | coro_nready++; |
|
|
903 | } |
995 | } |
904 | |
996 | |
905 | static SV * |
997 | static SV * |
906 | coro_deq (int min_prio) |
998 | coro_deq (pTHX_ int min_prio) |
907 | { |
999 | { |
908 | int prio = PRIO_MAX - PRIO_MIN; |
1000 | int prio = PRIO_MAX - PRIO_MIN; |
909 | |
1001 | |
910 | min_prio -= PRIO_MIN; |
1002 | min_prio -= PRIO_MIN; |
911 | if (min_prio < 0) |
1003 | if (min_prio < 0) |
912 | min_prio = 0; |
1004 | min_prio = 0; |
913 | |
1005 | |
914 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1006 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
915 | if (AvFILLp (coro_ready [prio]) >= 0) |
1007 | if (AvFILLp (coro_ready [prio]) >= 0) |
916 | { |
|
|
917 | coro_nready--; |
|
|
918 | return av_shift (coro_ready [prio]); |
1008 | return av_shift (coro_ready [prio]); |
919 | } |
|
|
920 | |
1009 | |
921 | return 0; |
1010 | return 0; |
922 | } |
1011 | } |
923 | |
1012 | |
924 | static int |
1013 | static int |
925 | api_ready (SV *coro_sv) |
1014 | api_ready (SV *coro_sv) |
926 | { |
1015 | { |
|
|
1016 | dTHX; |
927 | struct coro *coro; |
1017 | struct coro *coro; |
928 | |
1018 | |
929 | if (SvROK (coro_sv)) |
1019 | if (SvROK (coro_sv)) |
930 | coro_sv = SvRV (coro_sv); |
1020 | coro_sv = SvRV (coro_sv); |
931 | |
1021 | |
932 | coro = SvSTATE (coro_sv); |
1022 | coro = SvSTATE (coro_sv); |
933 | |
1023 | |
934 | if (coro->flags & CF_READY) |
1024 | if (coro->flags & CF_READY) |
935 | return 0; |
1025 | return 0; |
936 | |
1026 | |
937 | #if 0 /* this is actually harmless */ |
|
|
938 | if (coro->flags & CF_RUNNING) |
|
|
939 | croak ("Coro::ready called on currently running coroutine"); |
|
|
940 | #endif |
|
|
941 | |
|
|
942 | coro->flags |= CF_READY; |
1027 | coro->flags |= CF_READY; |
943 | |
1028 | |
944 | LOCK; |
1029 | LOCK; |
945 | coro_enq (SvREFCNT_inc (coro_sv)); |
1030 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1031 | ++coro_nready; |
946 | UNLOCK; |
1032 | UNLOCK; |
947 | |
1033 | |
948 | return 1; |
1034 | return 1; |
949 | } |
1035 | } |
950 | |
1036 | |
951 | static int |
1037 | static int |
952 | api_is_ready (SV *coro_sv) |
1038 | api_is_ready (SV *coro_sv) |
953 | { |
1039 | { |
|
|
1040 | dTHX; |
954 | return !!SvSTATE (coro_sv)->flags & CF_READY; |
1041 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
955 | } |
1042 | } |
956 | |
1043 | |
957 | static void |
1044 | static void |
958 | prepare_schedule (struct transfer_args *ta) |
1045 | prepare_schedule (pTHX_ struct transfer_args *ta) |
959 | { |
1046 | { |
960 | SV *prev, *next; |
1047 | SV *prev_sv, *next_sv; |
961 | |
1048 | |
962 | for (;;) |
1049 | for (;;) |
963 | { |
1050 | { |
964 | LOCK; |
1051 | LOCK; |
965 | next = coro_deq (PRIO_MIN); |
1052 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1053 | |
|
|
1054 | /* nothing to schedule: call the idle handler */ |
|
|
1055 | if (!next_sv) |
|
|
1056 | { |
|
|
1057 | dSP; |
|
|
1058 | UNLOCK; |
|
|
1059 | |
|
|
1060 | ENTER; |
|
|
1061 | SAVETMPS; |
|
|
1062 | |
|
|
1063 | PUSHMARK (SP); |
|
|
1064 | PUTBACK; |
|
|
1065 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1066 | |
|
|
1067 | FREETMPS; |
|
|
1068 | LEAVE; |
|
|
1069 | continue; |
|
|
1070 | } |
|
|
1071 | |
|
|
1072 | ta->next = SvSTATE (next_sv); |
|
|
1073 | |
|
|
1074 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1075 | if (ta->next->flags & CF_DESTROYED) |
|
|
1076 | { |
|
|
1077 | UNLOCK; |
|
|
1078 | SvREFCNT_dec (next_sv); |
|
|
1079 | /* coro_nready is already taken care of by destroy */ |
|
|
1080 | continue; |
|
|
1081 | } |
|
|
1082 | |
|
|
1083 | --coro_nready; |
966 | UNLOCK; |
1084 | UNLOCK; |
967 | |
|
|
968 | if (next) |
|
|
969 | break; |
1085 | break; |
970 | |
|
|
971 | { |
|
|
972 | dSP; |
|
|
973 | |
|
|
974 | ENTER; |
|
|
975 | SAVETMPS; |
|
|
976 | |
|
|
977 | PUSHMARK (SP); |
|
|
978 | PUTBACK; |
|
|
979 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
980 | |
|
|
981 | FREETMPS; |
|
|
982 | LEAVE; |
|
|
983 | } |
1086 | } |
984 | } |
|
|
985 | |
|
|
986 | prev = SvRV (coro_current); |
|
|
987 | SvRV_set (coro_current, next); |
|
|
988 | |
1087 | |
989 | /* free this only after the transfer */ |
1088 | /* free this only after the transfer */ |
|
|
1089 | prev_sv = SvRV (coro_current); |
|
|
1090 | SvRV_set (coro_current, next_sv); |
|
|
1091 | ta->prev = SvSTATE (prev_sv); |
|
|
1092 | |
|
|
1093 | assert (ta->next->flags & CF_READY); |
|
|
1094 | ta->next->flags &= ~CF_READY; |
|
|
1095 | |
990 | LOCK; |
1096 | LOCK; |
991 | free_coro_mortal (); |
1097 | free_coro_mortal (aTHX); |
|
|
1098 | coro_mortal = prev_sv; |
992 | UNLOCK; |
1099 | UNLOCK; |
993 | coro_mortal = prev; |
|
|
994 | |
|
|
995 | assert (!SvROK(prev));//D |
|
|
996 | assert (!SvROK(next));//D |
|
|
997 | |
|
|
998 | ta->prev = SvSTATE (prev); |
|
|
999 | ta->next = SvSTATE (next); |
|
|
1000 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
1001 | |
|
|
1002 | assert (ta->flags & CF_READY); |
|
|
1003 | ta->next->flags &= ~CF_READY; |
|
|
1004 | } |
1100 | } |
1005 | |
1101 | |
1006 | static void |
1102 | static void |
1007 | prepare_cede (struct transfer_args *ta) |
1103 | prepare_cede (pTHX_ struct transfer_args *ta) |
1008 | { |
1104 | { |
1009 | api_ready (coro_current); |
1105 | api_ready (coro_current); |
1010 | |
|
|
1011 | prepare_schedule (ta); |
1106 | prepare_schedule (aTHX_ ta); |
|
|
1107 | } |
|
|
1108 | |
|
|
1109 | static int |
|
|
1110 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1111 | { |
|
|
1112 | if (coro_nready) |
|
|
1113 | { |
|
|
1114 | SV *prev = SvRV (coro_current); |
|
|
1115 | prepare_schedule (aTHX_ ta); |
|
|
1116 | api_ready (prev); |
|
|
1117 | return 1; |
|
|
1118 | } |
|
|
1119 | else |
|
|
1120 | return 0; |
1012 | } |
1121 | } |
1013 | |
1122 | |
1014 | static void |
1123 | static void |
1015 | api_schedule (void) |
1124 | api_schedule (void) |
1016 | { |
1125 | { |
|
|
1126 | dTHX; |
1017 | struct transfer_args ta; |
1127 | struct transfer_args ta; |
1018 | |
1128 | |
1019 | prepare_schedule (&ta); |
1129 | prepare_schedule (aTHX_ &ta); |
1020 | TRANSFER (ta); |
1130 | TRANSFER (ta); |
1021 | } |
1131 | } |
1022 | |
1132 | |
1023 | static void |
1133 | static int |
1024 | api_cede (void) |
1134 | api_cede (void) |
1025 | { |
1135 | { |
|
|
1136 | dTHX; |
1026 | struct transfer_args ta; |
1137 | struct transfer_args ta; |
1027 | |
1138 | |
1028 | prepare_cede (&ta); |
1139 | prepare_cede (aTHX_ &ta); |
|
|
1140 | |
|
|
1141 | if (ta.prev != ta.next) |
|
|
1142 | { |
1029 | TRANSFER (ta); |
1143 | TRANSFER (ta); |
|
|
1144 | return 1; |
|
|
1145 | } |
|
|
1146 | else |
|
|
1147 | return 0; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | static int |
|
|
1151 | api_cede_notself (void) |
|
|
1152 | { |
|
|
1153 | dTHX; |
|
|
1154 | struct transfer_args ta; |
|
|
1155 | |
|
|
1156 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1157 | { |
|
|
1158 | TRANSFER (ta); |
|
|
1159 | return 1; |
|
|
1160 | } |
|
|
1161 | else |
|
|
1162 | return 0; |
1030 | } |
1163 | } |
1031 | |
1164 | |
1032 | MODULE = Coro::State PACKAGE = Coro::State |
1165 | MODULE = Coro::State PACKAGE = Coro::State |
1033 | |
1166 | |
1034 | PROTOTYPES: DISABLE |
1167 | PROTOTYPES: DISABLE |
… | |
… | |
1040 | #endif |
1173 | #endif |
1041 | BOOT_PAGESIZE; |
1174 | BOOT_PAGESIZE; |
1042 | |
1175 | |
1043 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1176 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1044 | |
1177 | |
1045 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1178 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1046 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1179 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1047 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1180 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1181 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1182 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1183 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
|
|
1184 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1048 | |
1185 | |
1049 | main_mainstack = PL_mainstack; |
1186 | main_mainstack = PL_mainstack; |
|
|
1187 | main_top_env = PL_top_env; |
|
|
1188 | |
|
|
1189 | while (main_top_env->je_prev) |
|
|
1190 | main_top_env = main_top_env->je_prev; |
1050 | |
1191 | |
1051 | coroapi.ver = CORO_API_VERSION; |
1192 | coroapi.ver = CORO_API_VERSION; |
1052 | coroapi.transfer = api_transfer; |
1193 | coroapi.transfer = api_transfer; |
1053 | |
1194 | |
1054 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1195 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1062 | HV *hv; |
1203 | HV *hv; |
1063 | int i; |
1204 | int i; |
1064 | |
1205 | |
1065 | Newz (0, coro, 1, struct coro); |
1206 | Newz (0, coro, 1, struct coro); |
1066 | coro->args = newAV (); |
1207 | coro->args = newAV (); |
|
|
1208 | coro->save = CORO_SAVE_DEF; |
1067 | coro->flags = CF_NEW; |
1209 | coro->flags = CF_NEW; |
1068 | |
1210 | |
1069 | hv = newHV (); |
1211 | hv = newHV (); |
1070 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1212 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1071 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1213 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1072 | |
1214 | |
1073 | for (i = 1; i < items; i++) |
1215 | for (i = 1; i < items; i++) |
1074 | av_push (coro->args, newSVsv (ST (i))); |
1216 | av_push (coro->args, newSVsv (ST (i))); |
1075 | } |
1217 | } |
1076 | OUTPUT: |
1218 | OUTPUT: |
|
|
1219 | RETVAL |
|
|
1220 | |
|
|
1221 | int |
|
|
1222 | save (SV *coro, int new_save = -1) |
|
|
1223 | CODE: |
|
|
1224 | RETVAL = api_save (coro, new_save); |
|
|
1225 | OUTPUT: |
|
|
1226 | RETVAL |
|
|
1227 | |
|
|
1228 | int |
|
|
1229 | save_also (SV *coro_sv, int save_also) |
|
|
1230 | CODE: |
|
|
1231 | { |
|
|
1232 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1233 | RETVAL = coro->save; |
|
|
1234 | coro->save |= save_also; |
|
|
1235 | } |
|
|
1236 | OUTPUT: |
1077 | RETVAL |
1237 | RETVAL |
1078 | |
1238 | |
1079 | void |
1239 | void |
1080 | _set_stacklevel (...) |
1240 | _set_stacklevel (...) |
1081 | ALIAS: |
1241 | ALIAS: |
1082 | Coro::State::transfer = 1 |
1242 | Coro::State::transfer = 1 |
1083 | Coro::schedule = 2 |
1243 | Coro::schedule = 2 |
1084 | Coro::cede = 3 |
1244 | Coro::cede = 3 |
|
|
1245 | Coro::cede_notself = 4 |
1085 | CODE: |
1246 | CODE: |
1086 | { |
1247 | { |
1087 | struct transfer_args ta; |
1248 | struct transfer_args ta; |
1088 | |
1249 | |
1089 | switch (ix) |
1250 | switch (ix) |
1090 | { |
1251 | { |
1091 | case 0: |
1252 | case 0: |
1092 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1253 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1093 | ta.next = 0; |
1254 | ta.next = 0; |
1094 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1095 | break; |
1255 | break; |
1096 | |
1256 | |
1097 | case 1: |
1257 | case 1: |
1098 | if (items != 3) |
1258 | if (items != 2) |
1099 | croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items); |
1259 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1100 | |
1260 | |
1101 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1261 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1102 | break; |
1262 | break; |
1103 | |
1263 | |
1104 | case 2: |
1264 | case 2: |
1105 | prepare_schedule (&ta); |
1265 | prepare_schedule (aTHX_ &ta); |
1106 | break; |
1266 | break; |
1107 | |
1267 | |
1108 | case 3: |
1268 | case 3: |
1109 | prepare_cede (&ta); |
1269 | prepare_cede (aTHX_ &ta); |
|
|
1270 | break; |
|
|
1271 | |
|
|
1272 | case 4: |
|
|
1273 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1274 | XSRETURN_EMPTY; |
|
|
1275 | |
1110 | break; |
1276 | break; |
1111 | } |
1277 | } |
1112 | |
1278 | |
|
|
1279 | BARRIER; |
1113 | TRANSFER (ta); |
1280 | TRANSFER (ta); |
1114 | } |
|
|
1115 | |
1281 | |
1116 | void |
1282 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1117 | _clone_state_from (SV *dst, SV *src) |
1283 | XSRETURN_YES; |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | bool |
|
|
1287 | _destroy (SV *coro_sv) |
1118 | CODE: |
1288 | CODE: |
1119 | { |
1289 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1120 | struct coro *coro_src = SvSTATE (src); |
1290 | OUTPUT: |
1121 | |
1291 | RETVAL |
1122 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1123 | |
|
|
1124 | ++coro_src->refcnt; |
|
|
1125 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1126 | } |
|
|
1127 | |
1292 | |
1128 | void |
1293 | void |
1129 | _exit (code) |
1294 | _exit (code) |
1130 | int code |
1295 | int code |
1131 | PROTOTYPE: $ |
1296 | PROTOTYPE: $ |
1132 | CODE: |
1297 | CODE: |
1133 | _exit (code); |
1298 | _exit (code); |
1134 | |
1299 | |
1135 | int |
1300 | int |
|
|
1301 | cctx_stacksize (int new_stacksize = 0) |
|
|
1302 | CODE: |
|
|
1303 | RETVAL = coro_stacksize; |
|
|
1304 | if (new_stacksize) |
|
|
1305 | coro_stacksize = new_stacksize; |
|
|
1306 | OUTPUT: |
|
|
1307 | RETVAL |
|
|
1308 | |
|
|
1309 | int |
1136 | cctx_count () |
1310 | cctx_count () |
1137 | CODE: |
1311 | CODE: |
1138 | RETVAL = cctx_count; |
1312 | RETVAL = cctx_count; |
1139 | OUTPUT: |
1313 | OUTPUT: |
1140 | RETVAL |
1314 | RETVAL |
… | |
… | |
1168 | coro_ready[i] = newAV (); |
1342 | coro_ready[i] = newAV (); |
1169 | |
1343 | |
1170 | { |
1344 | { |
1171 | SV *sv = perl_get_sv("Coro::API", 1); |
1345 | SV *sv = perl_get_sv("Coro::API", 1); |
1172 | |
1346 | |
1173 | coroapi.schedule = api_schedule; |
1347 | coroapi.schedule = api_schedule; |
|
|
1348 | coroapi.save = api_save; |
1174 | coroapi.cede = api_cede; |
1349 | coroapi.cede = api_cede; |
|
|
1350 | coroapi.cede_notself = api_cede_notself; |
1175 | coroapi.ready = api_ready; |
1351 | coroapi.ready = api_ready; |
1176 | coroapi.is_ready = api_is_ready; |
1352 | coroapi.is_ready = api_is_ready; |
1177 | coroapi.nready = &coro_nready; |
1353 | coroapi.nready = &coro_nready; |
1178 | coroapi.current = coro_current; |
1354 | coroapi.current = coro_current; |
1179 | |
1355 | |
1180 | GCoroAPI = &coroapi; |
1356 | GCoroAPI = &coroapi; |
1181 | sv_setiv (sv, (IV)&coroapi); |
1357 | sv_setiv (sv, (IV)&coroapi); |
1182 | SvREADONLY_on (sv); |
1358 | SvREADONLY_on (sv); |
1183 | } |
1359 | } |
1184 | } |
1360 | } |
|
|
1361 | |
|
|
1362 | void |
|
|
1363 | _set_current (SV *current) |
|
|
1364 | PROTOTYPE: $ |
|
|
1365 | CODE: |
|
|
1366 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1367 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1185 | |
1368 | |
1186 | int |
1369 | int |
1187 | prio (Coro::State coro, int newprio = 0) |
1370 | prio (Coro::State coro, int newprio = 0) |
1188 | ALIAS: |
1371 | ALIAS: |
1189 | nice = 1 |
1372 | nice = 1 |
… | |
… | |
1192 | RETVAL = coro->prio; |
1375 | RETVAL = coro->prio; |
1193 | |
1376 | |
1194 | if (items > 1) |
1377 | if (items > 1) |
1195 | { |
1378 | { |
1196 | if (ix) |
1379 | if (ix) |
1197 | newprio += coro->prio; |
1380 | newprio = coro->prio - newprio; |
1198 | |
1381 | |
1199 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1382 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1200 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1383 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1201 | |
1384 | |
1202 | coro->prio = newprio; |
1385 | coro->prio = newprio; |
1203 | } |
1386 | } |
1204 | } |
1387 | } |
|
|
1388 | OUTPUT: |
|
|
1389 | RETVAL |
1205 | |
1390 | |
1206 | SV * |
1391 | SV * |
1207 | ready (SV *self) |
1392 | ready (SV *self) |
1208 | PROTOTYPE: $ |
1393 | PROTOTYPE: $ |
1209 | CODE: |
1394 | CODE: |
… | |
… | |
1225 | CODE: |
1410 | CODE: |
1226 | RETVAL = coro_nready; |
1411 | RETVAL = coro_nready; |
1227 | OUTPUT: |
1412 | OUTPUT: |
1228 | RETVAL |
1413 | RETVAL |
1229 | |
1414 | |
1230 | void |
|
|
1231 | _set_current (SV *current) |
|
|
1232 | PROTOTYPE: $ |
|
|
1233 | CODE: |
|
|
1234 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1235 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
|
|
1236 | |
|
|
1237 | MODULE = Coro::State PACKAGE = Coro::AIO |
1415 | MODULE = Coro::State PACKAGE = Coro::AIO |
1238 | |
1416 | |
1239 | SV * |
1417 | SV * |
1240 | _get_state () |
1418 | _get_state () |
1241 | CODE: |
1419 | CODE: |