|
|
1 | #include "libcoro/coro.c" |
|
|
2 | |
|
|
3 | #define PERL_NO_GET_CONTEXT |
|
|
4 | #define PERL_EXT |
|
|
5 | |
1 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
2 | #include "perl.h" |
7 | #include "perl.h" |
3 | #include "XSUB.h" |
8 | #include "XSUB.h" |
|
|
9 | #include "perliol.h" |
4 | |
10 | |
|
|
11 | #include "patchlevel.h" |
|
|
12 | |
|
|
13 | #include <stdio.h> |
|
|
14 | #include <errno.h> |
|
|
15 | #include <assert.h> |
|
|
16 | |
|
|
17 | #ifdef WIN32 |
|
|
18 | # undef setjmp |
|
|
19 | # undef longjmp |
|
|
20 | # undef _exit |
|
|
21 | # define setjmp _setjmp // deep magic, don't ask |
|
|
22 | #else |
|
|
23 | # include <inttypes.h> /* most portable stdint.h */ |
|
|
24 | #endif |
|
|
25 | |
|
|
26 | #ifdef HAVE_MMAP |
|
|
27 | # include <unistd.h> |
|
|
28 | # include <sys/mman.h> |
|
|
29 | # ifndef MAP_ANONYMOUS |
|
|
30 | # ifdef MAP_ANON |
|
|
31 | # define MAP_ANONYMOUS MAP_ANON |
|
|
32 | # else |
|
|
33 | # undef HAVE_MMAP |
|
|
34 | # endif |
|
|
35 | # endif |
|
|
36 | # include <limits.h> |
|
|
37 | # ifndef PAGESIZE |
|
|
38 | # define PAGESIZE pagesize |
|
|
39 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
|
|
40 | static long pagesize; |
|
|
41 | # else |
|
|
42 | # define BOOT_PAGESIZE (void)0 |
|
|
43 | # endif |
|
|
44 | #else |
|
|
45 | # define PAGESIZE 0 |
|
|
46 | # define BOOT_PAGESIZE (void)0 |
|
|
47 | #endif |
|
|
48 | |
|
|
49 | #if CORO_USE_VALGRIND |
|
|
50 | # include <valgrind/valgrind.h> |
|
|
51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
|
|
52 | #else |
|
|
53 | # define REGISTER_STACK(cctx,start,end) |
|
|
54 | #endif |
|
|
55 | |
|
|
56 | /* the maximum number of idle cctx that will be pooled */ |
|
|
57 | static int cctx_max_idle = 4; |
|
|
58 | |
|
|
59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
|
|
60 | (PERL_REVISION > (a) \ |
|
|
61 | || (PERL_REVISION == (a) \ |
|
|
62 | && (PERL_VERSION > (b) \ |
|
|
63 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
|
|
64 | |
|
|
65 | #if !PERL_VERSION_ATLEAST (5,6,0) |
|
|
66 | # ifndef PL_ppaddr |
|
|
67 | # define PL_ppaddr ppaddr |
|
|
68 | # endif |
|
|
69 | # ifndef call_sv |
|
|
70 | # define call_sv perl_call_sv |
|
|
71 | # endif |
|
|
72 | # ifndef get_sv |
|
|
73 | # define get_sv perl_get_sv |
|
|
74 | # endif |
|
|
75 | # ifndef get_cv |
|
|
76 | # define get_cv perl_get_cv |
|
|
77 | # endif |
|
|
78 | # ifndef IS_PADGV |
|
|
79 | # define IS_PADGV(v) 0 |
|
|
80 | # endif |
|
|
81 | # ifndef IS_PADCONST |
|
|
82 | # define IS_PADCONST(v) 0 |
|
|
83 | # endif |
|
|
84 | #endif |
|
|
85 | |
|
|
86 | /* 5.11 */ |
|
|
87 | #ifndef CxHASARGS |
|
|
88 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
|
|
89 | #endif |
|
|
90 | |
|
|
91 | /* 5.10.0 */ |
|
|
92 | #ifndef SvREFCNT_inc_NN |
|
|
93 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
|
|
94 | #endif |
|
|
95 | |
|
|
96 | /* 5.8.8 */ |
|
|
97 | #ifndef GV_NOTQUAL |
|
|
98 | # define GV_NOTQUAL 0 |
|
|
99 | #endif |
|
|
100 | #ifndef newSV |
|
|
101 | # define newSV(l) NEWSV(0,l) |
|
|
102 | #endif |
|
|
103 | |
|
|
104 | /* 5.8.7 */ |
|
|
105 | #ifndef SvRV_set |
|
|
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
|
|
107 | #endif |
|
|
108 | |
|
|
109 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
|
|
110 | # undef CORO_STACKGUARD |
|
|
111 | #endif |
|
|
112 | |
|
|
113 | #ifndef CORO_STACKGUARD |
|
|
114 | # define CORO_STACKGUARD 0 |
|
|
115 | #endif |
|
|
116 | |
|
|
117 | /* prefer perl internal functions over our own? */ |
|
|
118 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
|
|
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
|
|
120 | #endif |
|
|
121 | |
|
|
122 | /* The next macros try to return the current stack pointer, in an as |
|
|
123 | * portable way as possible. */ |
|
|
124 | #define dSTACKLEVEL volatile char stacklevel |
|
|
125 | #define STACKLEVEL ((void *)&stacklevel) |
|
|
126 | |
|
|
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
|
|
128 | |
|
|
129 | #if __GNUC__ >= 3 |
|
|
130 | # define attribute(x) __attribute__(x) |
|
|
131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
|
|
132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
133 | #else |
|
|
134 | # define attribute(x) |
|
|
135 | # define BARRIER |
|
|
136 | # define expect(expr,value) (expr) |
|
|
137 | #endif |
|
|
138 | |
|
|
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
141 | |
|
|
142 | #define NOINLINE attribute ((noinline)) |
|
|
143 | |
|
|
144 | #include "CoroAPI.h" |
|
|
145 | |
|
|
146 | #ifdef USE_ITHREADS |
|
|
147 | static perl_mutex coro_lock; |
|
|
148 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
|
|
149 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
|
150 | #else |
|
|
151 | # define LOCK (void)0 |
|
|
152 | # define UNLOCK (void)0 |
|
|
153 | #endif |
|
|
154 | |
|
|
155 | /* helper storage struct for Coro::AIO */ |
|
|
156 | struct io_state |
|
|
157 | { |
|
|
158 | AV *res; |
|
|
159 | int errorno; |
|
|
160 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
161 | int laststatval; |
|
|
162 | Stat_t statcache; |
|
|
163 | }; |
|
|
164 | |
|
|
165 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
166 | |
|
|
167 | static U32 cctx_gen; |
|
|
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
|
|
169 | static struct CoroAPI coroapi; |
|
|
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
|
|
171 | static JMPENV *main_top_env; |
|
|
172 | static HV *coro_state_stash, *coro_stash; |
|
|
173 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
|
|
174 | |
|
|
175 | static GV *irsgv; /* $/ */ |
|
|
176 | static GV *stdoutgv; /* *STDOUT */ |
|
|
177 | static SV *rv_diehook; |
|
|
178 | static SV *rv_warnhook; |
|
|
179 | static HV *hv_sig; /* %SIG */ |
|
|
180 | |
|
|
181 | /* async_pool helper stuff */ |
|
|
182 | static SV *sv_pool_rss; |
|
|
183 | static SV *sv_pool_size; |
|
|
184 | static AV *av_async_pool; |
|
|
185 | |
|
|
186 | /* Coro::AnyEvent */ |
|
|
187 | static SV *sv_activity; |
|
|
188 | |
|
|
189 | static struct coro_cctx *cctx_first; |
|
|
190 | static int cctx_count, cctx_idle; |
|
|
191 | |
|
|
192 | enum { |
|
|
193 | CC_MAPPED = 0x01, |
|
|
194 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
|
|
195 | CC_TRACE = 0x04, |
|
|
196 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
|
|
197 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
|
|
198 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
|
|
199 | }; |
|
|
200 | |
|
|
201 | /* this is a structure representing a c-level coroutine */ |
|
|
202 | typedef struct coro_cctx { |
|
|
203 | struct coro_cctx *next; |
|
|
204 | |
|
|
205 | /* the stack */ |
|
|
206 | void *sptr; |
|
|
207 | size_t ssize; |
|
|
208 | |
|
|
209 | /* cpu state */ |
|
|
210 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
|
|
211 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
|
|
212 | JMPENV *top_env; |
|
|
213 | coro_context cctx; |
|
|
214 | |
|
|
215 | U32 gen; |
|
|
216 | #if CORO_USE_VALGRIND |
|
|
217 | int valgrind_id; |
|
|
218 | #endif |
|
|
219 | unsigned char flags; |
|
|
220 | } coro_cctx; |
|
|
221 | |
|
|
222 | enum { |
|
|
223 | CF_RUNNING = 0x0001, /* coroutine is running */ |
|
|
224 | CF_READY = 0x0002, /* coroutine is ready */ |
|
|
225 | CF_NEW = 0x0004, /* has never been switched to */ |
|
|
226 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
|
|
227 | }; |
|
|
228 | |
|
|
229 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
|
|
230 | typedef struct { |
|
|
231 | SV *defsv; |
|
|
232 | AV *defav; |
|
|
233 | SV *errsv; |
|
|
234 | SV *irsgv; |
|
|
235 | #define VAR(name,type) type name; |
|
|
236 | # include "state.h" |
|
|
237 | #undef VAR |
|
|
238 | } perl_slots; |
|
|
239 | |
|
|
240 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
|
|
241 | |
|
|
242 | /* this is a structure representing a perl-level coroutine */ |
5 | struct coro { |
243 | struct coro { |
6 | U8 dowarn; |
244 | /* the c coroutine allocated to this perl coroutine, if any */ |
7 | |
245 | coro_cctx *cctx; |
8 | PERL_SI *curstackinfo; |
246 | |
9 | AV *curstack; |
247 | /* process data */ |
10 | AV *mainstack; |
248 | AV *mainstack; |
11 | SV **stack_sp; |
249 | perl_slots *slot; /* basically the saved sp */ |
12 | OP *op; |
|
|
13 | SV **curpad; |
|
|
14 | SV **stack_base; |
|
|
15 | SV **stack_max; |
|
|
16 | SV **tmps_stack; |
|
|
17 | I32 tmps_floor; |
|
|
18 | I32 tmps_ix; |
|
|
19 | I32 tmps_max; |
|
|
20 | I32 *markstack; |
|
|
21 | I32 *markstack_ptr; |
|
|
22 | I32 *markstack_max; |
|
|
23 | I32 *scopestack; |
|
|
24 | I32 scopestack_ix; |
|
|
25 | I32 scopestack_max; |
|
|
26 | ANY *savestack; |
|
|
27 | I32 savestack_ix; |
|
|
28 | I32 savestack_max; |
|
|
29 | OP **retstack; |
|
|
30 | I32 retstack_ix; |
|
|
31 | I32 retstack_max; |
|
|
32 | COP *curcop; |
|
|
33 | |
250 | |
34 | AV *defav; |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
|
|
252 | int refcnt; /* coroutines are refcounted, yes */ |
|
|
253 | int flags; /* CF_ flags */ |
|
|
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
35 | |
255 | |
36 | SV *proc; |
256 | /* statistics */ |
|
|
257 | int usecount; /* number of transfers to this coro */ |
|
|
258 | |
|
|
259 | /* coro process data */ |
|
|
260 | int prio; |
|
|
261 | SV *throw; /* exception to be thrown */ |
|
|
262 | |
|
|
263 | /* async_pool */ |
|
|
264 | SV *saved_deffh; |
|
|
265 | |
|
|
266 | /* linked list */ |
|
|
267 | struct coro *next, *prev; |
37 | }; |
268 | }; |
38 | |
269 | |
39 | typedef struct coro *Coro__State; |
270 | typedef struct coro *Coro__State; |
40 | typedef struct coro *Coro__State_or_hashref; |
271 | typedef struct coro *Coro__State_or_hashref; |
41 | |
272 | |
42 | #define SAVE(c) \ |
273 | /** Coro ********************************************************************/ |
43 | c->dowarn = PL_dowarn; \ |
|
|
44 | c->curstackinfo = PL_curstackinfo; \ |
|
|
45 | c->curstack = PL_curstack; \ |
|
|
46 | c->mainstack = PL_mainstack; \ |
|
|
47 | c->stack_sp = PL_stack_sp; \ |
|
|
48 | c->op = PL_op; \ |
|
|
49 | c->curpad = PL_curpad; \ |
|
|
50 | c->stack_base = PL_stack_base; \ |
|
|
51 | c->stack_max = PL_stack_max; \ |
|
|
52 | c->tmps_stack = PL_tmps_stack; \ |
|
|
53 | c->tmps_floor = PL_tmps_floor; \ |
|
|
54 | c->tmps_ix = PL_tmps_ix; \ |
|
|
55 | c->tmps_max = PL_tmps_max; \ |
|
|
56 | c->markstack = PL_markstack; \ |
|
|
57 | c->markstack_ptr = PL_markstack_ptr; \ |
|
|
58 | c->markstack_max = PL_markstack_max; \ |
|
|
59 | c->scopestack = PL_scopestack; \ |
|
|
60 | c->scopestack_ix = PL_scopestack_ix; \ |
|
|
61 | c->scopestack_max = PL_scopestack_max;\ |
|
|
62 | c->savestack = PL_savestack; \ |
|
|
63 | c->savestack_ix = PL_savestack_ix; \ |
|
|
64 | c->savestack_max = PL_savestack_max; \ |
|
|
65 | c->retstack = PL_retstack; \ |
|
|
66 | c->retstack_ix = PL_retstack_ix; \ |
|
|
67 | c->retstack_max = PL_retstack_max; \ |
|
|
68 | c->curcop = PL_curcop; \ |
|
|
69 | c->defav = GvAV (PL_defgv); |
|
|
70 | |
274 | |
71 | #define LOAD(c) \ |
275 | #define PRIO_MAX 3 |
72 | PL_dowarn = c->dowarn; \ |
276 | #define PRIO_HIGH 1 |
73 | PL_curstackinfo = c->curstackinfo; \ |
277 | #define PRIO_NORMAL 0 |
74 | PL_curstack = c->curstack; \ |
278 | #define PRIO_LOW -1 |
|
|
279 | #define PRIO_IDLE -3 |
|
|
280 | #define PRIO_MIN -4 |
|
|
281 | |
|
|
282 | /* for Coro.pm */ |
|
|
283 | static SV *coro_current; |
|
|
284 | static SV *coro_readyhook; |
|
|
285 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
286 | static int coro_nready; |
|
|
287 | static struct coro *coro_first; |
|
|
288 | |
|
|
289 | /** lowlevel stuff **********************************************************/ |
|
|
290 | |
|
|
291 | static SV * |
|
|
292 | coro_get_sv (pTHX_ const char *name, int create) |
|
|
293 | { |
|
|
294 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
295 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
296 | get_sv (name, create); |
|
|
297 | #endif |
|
|
298 | return get_sv (name, create); |
|
|
299 | } |
|
|
300 | |
|
|
301 | static AV * |
|
|
302 | coro_get_av (pTHX_ const char *name, int create) |
|
|
303 | { |
|
|
304 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
305 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
306 | get_av (name, create); |
|
|
307 | #endif |
|
|
308 | return get_av (name, create); |
|
|
309 | } |
|
|
310 | |
|
|
311 | static HV * |
|
|
312 | coro_get_hv (pTHX_ const char *name, int create) |
|
|
313 | { |
|
|
314 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
315 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
316 | get_hv (name, create); |
|
|
317 | #endif |
|
|
318 | return get_hv (name, create); |
|
|
319 | } |
|
|
320 | |
|
|
321 | static AV * |
|
|
322 | coro_clone_padlist (pTHX_ CV *cv) |
|
|
323 | { |
|
|
324 | AV *padlist = CvPADLIST (cv); |
|
|
325 | AV *newpadlist, *newpad; |
|
|
326 | |
|
|
327 | newpadlist = newAV (); |
|
|
328 | AvREAL_off (newpadlist); |
|
|
329 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
330 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
331 | #else |
|
|
332 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
|
333 | #endif |
|
|
334 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
|
335 | --AvFILLp (padlist); |
|
|
336 | |
|
|
337 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
|
|
338 | av_store (newpadlist, 1, (SV *)newpad); |
|
|
339 | |
|
|
340 | return newpadlist; |
|
|
341 | } |
|
|
342 | |
|
|
343 | static void |
|
|
344 | free_padlist (pTHX_ AV *padlist) |
|
|
345 | { |
|
|
346 | /* may be during global destruction */ |
|
|
347 | if (SvREFCNT (padlist)) |
|
|
348 | { |
|
|
349 | I32 i = AvFILLp (padlist); |
|
|
350 | while (i >= 0) |
|
|
351 | { |
|
|
352 | SV **svp = av_fetch (padlist, i--, FALSE); |
|
|
353 | if (svp) |
|
|
354 | { |
|
|
355 | SV *sv; |
|
|
356 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
|
|
357 | SvREFCNT_dec (sv); |
|
|
358 | |
|
|
359 | SvREFCNT_dec (*svp); |
|
|
360 | } |
|
|
361 | } |
|
|
362 | |
|
|
363 | SvREFCNT_dec ((SV*)padlist); |
|
|
364 | } |
|
|
365 | } |
|
|
366 | |
|
|
367 | static int |
|
|
368 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
369 | { |
|
|
370 | AV *padlist; |
|
|
371 | AV *av = (AV *)mg->mg_obj; |
|
|
372 | |
|
|
373 | /* casting is fun. */ |
|
|
374 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
|
|
375 | free_padlist (aTHX_ padlist); |
|
|
376 | |
|
|
377 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
|
|
378 | |
|
|
379 | return 0; |
|
|
380 | } |
|
|
381 | |
|
|
382 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
383 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
384 | |
|
|
385 | static MGVTBL coro_cv_vtbl = { |
|
|
386 | 0, 0, 0, 0, |
|
|
387 | coro_cv_free |
|
|
388 | }; |
|
|
389 | |
|
|
390 | #define CORO_MAGIC(sv, type) \ |
|
|
391 | SvMAGIC (sv) \ |
|
|
392 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
393 | ? SvMAGIC (sv) \ |
|
|
394 | : mg_find (sv, type) \ |
|
|
395 | : 0 |
|
|
396 | |
|
|
397 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
398 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
399 | |
|
|
400 | static struct coro * |
|
|
401 | SvSTATE_ (pTHX_ SV *coro) |
|
|
402 | { |
|
|
403 | HV *stash; |
|
|
404 | MAGIC *mg; |
|
|
405 | |
|
|
406 | if (SvROK (coro)) |
|
|
407 | coro = SvRV (coro); |
|
|
408 | |
|
|
409 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
410 | croak ("Coro::State object required"); |
|
|
411 | |
|
|
412 | stash = SvSTASH (coro); |
|
|
413 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
414 | { |
|
|
415 | /* very slow, but rare, check */ |
|
|
416 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
417 | croak ("Coro::State object required"); |
|
|
418 | } |
|
|
419 | |
|
|
420 | mg = CORO_MAGIC_state (coro); |
|
|
421 | return (struct coro *)mg->mg_ptr; |
|
|
422 | } |
|
|
423 | |
|
|
424 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
425 | |
|
|
426 | /* the next two functions merely cache the padlists */ |
|
|
427 | static void |
|
|
428 | get_padlist (pTHX_ CV *cv) |
|
|
429 | { |
|
|
430 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
431 | AV *av; |
|
|
432 | |
|
|
433 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
|
|
434 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
|
|
435 | else |
|
|
436 | { |
|
|
437 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
438 | /* this is probably cleaner? but also slower! */ |
|
|
439 | /* in practise, it seems to be less stable */ |
|
|
440 | CV *cp = Perl_cv_clone (cv); |
|
|
441 | CvPADLIST (cv) = CvPADLIST (cp); |
|
|
442 | CvPADLIST (cp) = 0; |
|
|
443 | SvREFCNT_dec (cp); |
|
|
444 | #else |
|
|
445 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
|
|
446 | #endif |
|
|
447 | } |
|
|
448 | } |
|
|
449 | |
|
|
450 | static void |
|
|
451 | put_padlist (pTHX_ CV *cv) |
|
|
452 | { |
|
|
453 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
454 | AV *av; |
|
|
455 | |
|
|
456 | if (expect_false (!mg)) |
|
|
457 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
458 | |
|
|
459 | av = (AV *)mg->mg_obj; |
|
|
460 | |
|
|
461 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
|
|
462 | av_extend (av, AvMAX (av) + 1); |
|
|
463 | |
|
|
464 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
|
|
465 | } |
|
|
466 | |
|
|
467 | /** load & save, init *******************************************************/ |
|
|
468 | |
|
|
469 | static void |
|
|
470 | load_perl (pTHX_ Coro__State c) |
|
|
471 | { |
|
|
472 | perl_slots *slot = c->slot; |
|
|
473 | c->slot = 0; |
|
|
474 | |
75 | PL_mainstack = c->mainstack; \ |
475 | PL_mainstack = c->mainstack; |
76 | PL_stack_sp = c->stack_sp; \ |
476 | |
77 | PL_op = c->op; \ |
477 | GvSV (PL_defgv) = slot->defsv; |
78 | PL_curpad = c->curpad; \ |
|
|
79 | PL_stack_base = c->stack_base; \ |
|
|
80 | PL_stack_max = c->stack_max; \ |
|
|
81 | PL_tmps_stack = c->tmps_stack; \ |
|
|
82 | PL_tmps_floor = c->tmps_floor; \ |
|
|
83 | PL_tmps_ix = c->tmps_ix; \ |
|
|
84 | PL_tmps_max = c->tmps_max; \ |
|
|
85 | PL_markstack = c->markstack; \ |
|
|
86 | PL_markstack_ptr = c->markstack_ptr; \ |
|
|
87 | PL_markstack_max = c->markstack_max; \ |
|
|
88 | PL_scopestack = c->scopestack; \ |
|
|
89 | PL_scopestack_ix = c->scopestack_ix; \ |
|
|
90 | PL_scopestack_max = c->scopestack_max;\ |
|
|
91 | PL_savestack = c->savestack; \ |
|
|
92 | PL_savestack_ix = c->savestack_ix; \ |
|
|
93 | PL_savestack_max = c->savestack_max; \ |
|
|
94 | PL_retstack = c->retstack; \ |
|
|
95 | PL_retstack_ix = c->retstack_ix; \ |
|
|
96 | PL_retstack_max = c->retstack_max; \ |
|
|
97 | PL_curcop = c->curcop; \ |
|
|
98 | GvAV (PL_defgv) = c->defav; |
478 | GvAV (PL_defgv) = slot->defav; |
|
|
479 | GvSV (PL_errgv) = slot->errsv; |
|
|
480 | GvSV (irsgv) = slot->irsgv; |
99 | |
481 | |
100 | /* this is an EXACT copy of S_nuke_stacks in perl.c, which is unfortunately static */ |
482 | #define VAR(name,type) PL_ ## name = slot->name; |
101 | STATIC void |
483 | # include "state.h" |
102 | S_nuke_stacks(pTHX) |
484 | #undef VAR |
|
|
485 | |
|
|
486 | { |
|
|
487 | dSP; |
|
|
488 | |
|
|
489 | CV *cv; |
|
|
490 | |
|
|
491 | /* now do the ugly restore mess */ |
|
|
492 | while (expect_true (cv = (CV *)POPs)) |
|
|
493 | { |
|
|
494 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
|
|
495 | CvDEPTH (cv) = PTR2IV (POPs); |
|
|
496 | CvPADLIST (cv) = (AV *)POPs; |
|
|
497 | } |
|
|
498 | |
|
|
499 | PUTBACK; |
|
|
500 | } |
|
|
501 | } |
|
|
502 | |
|
|
503 | static void |
|
|
504 | save_perl (pTHX_ Coro__State c) |
103 | { |
505 | { |
|
|
506 | { |
|
|
507 | dSP; |
|
|
508 | I32 cxix = cxstack_ix; |
|
|
509 | PERL_CONTEXT *ccstk = cxstack; |
|
|
510 | PERL_SI *top_si = PL_curstackinfo; |
|
|
511 | |
|
|
512 | /* |
|
|
513 | * the worst thing you can imagine happens first - we have to save |
|
|
514 | * (and reinitialize) all cv's in the whole callchain :( |
|
|
515 | */ |
|
|
516 | |
|
|
517 | XPUSHs (Nullsv); |
|
|
518 | /* this loop was inspired by pp_caller */ |
|
|
519 | for (;;) |
|
|
520 | { |
|
|
521 | while (expect_true (cxix >= 0)) |
|
|
522 | { |
|
|
523 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
|
|
524 | |
|
|
525 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
|
|
526 | { |
|
|
527 | CV *cv = cx->blk_sub.cv; |
|
|
528 | |
|
|
529 | if (expect_true (CvDEPTH (cv))) |
|
|
530 | { |
|
|
531 | EXTEND (SP, 3); |
|
|
532 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
533 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
|
|
534 | PUSHs ((SV *)cv); |
|
|
535 | |
|
|
536 | CvDEPTH (cv) = 0; |
|
|
537 | get_padlist (aTHX_ cv); |
|
|
538 | } |
|
|
539 | } |
|
|
540 | } |
|
|
541 | |
|
|
542 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
|
|
543 | break; |
|
|
544 | |
|
|
545 | top_si = top_si->si_prev; |
|
|
546 | ccstk = top_si->si_cxstack; |
|
|
547 | cxix = top_si->si_cxix; |
|
|
548 | } |
|
|
549 | |
|
|
550 | PUTBACK; |
|
|
551 | } |
|
|
552 | |
|
|
553 | /* allocate some space on the context stack for our purposes */ |
|
|
554 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
555 | if (SLOT_COUNT >= 1) CXINC; |
|
|
556 | if (SLOT_COUNT >= 2) CXINC; |
|
|
557 | if (SLOT_COUNT >= 3) CXINC; |
|
|
558 | { |
|
|
559 | int i; |
|
|
560 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
561 | CXINC; |
|
|
562 | } |
|
|
563 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
564 | |
|
|
565 | c->mainstack = PL_mainstack; |
|
|
566 | |
|
|
567 | { |
|
|
568 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
569 | |
|
|
570 | slot->defav = GvAV (PL_defgv); |
|
|
571 | slot->defsv = DEFSV; |
|
|
572 | slot->errsv = ERRSV; |
|
|
573 | slot->irsgv = GvSV (irsgv); |
|
|
574 | |
|
|
575 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
576 | # include "state.h" |
|
|
577 | #undef VAR |
|
|
578 | } |
|
|
579 | } |
|
|
580 | |
|
|
581 | /* |
|
|
582 | * allocate various perl stacks. This is an exact copy |
|
|
583 | * of perl.c:init_stacks, except that it uses less memory |
|
|
584 | * on the (sometimes correct) assumption that coroutines do |
|
|
585 | * not usually need a lot of stackspace. |
|
|
586 | */ |
|
|
587 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
588 | # define coro_init_stacks init_stacks |
|
|
589 | #else |
|
|
590 | static void |
|
|
591 | coro_init_stacks (pTHX) |
|
|
592 | { |
|
|
593 | PL_curstackinfo = new_stackinfo(32, 8); |
|
|
594 | PL_curstackinfo->si_type = PERLSI_MAIN; |
|
|
595 | PL_curstack = PL_curstackinfo->si_stack; |
|
|
596 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
|
|
597 | |
|
|
598 | PL_stack_base = AvARRAY(PL_curstack); |
|
|
599 | PL_stack_sp = PL_stack_base; |
|
|
600 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
|
|
601 | |
|
|
602 | New(50,PL_tmps_stack,32,SV*); |
|
|
603 | PL_tmps_floor = -1; |
|
|
604 | PL_tmps_ix = -1; |
|
|
605 | PL_tmps_max = 32; |
|
|
606 | |
|
|
607 | New(54,PL_markstack,16,I32); |
|
|
608 | PL_markstack_ptr = PL_markstack; |
|
|
609 | PL_markstack_max = PL_markstack + 16; |
|
|
610 | |
|
|
611 | #ifdef SET_MARK_OFFSET |
|
|
612 | SET_MARK_OFFSET; |
|
|
613 | #endif |
|
|
614 | |
|
|
615 | New(54,PL_scopestack,8,I32); |
|
|
616 | PL_scopestack_ix = 0; |
|
|
617 | PL_scopestack_max = 8; |
|
|
618 | |
|
|
619 | New(54,PL_savestack,24,ANY); |
|
|
620 | PL_savestack_ix = 0; |
|
|
621 | PL_savestack_max = 24; |
|
|
622 | |
|
|
623 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
624 | New(54,PL_retstack,4,OP*); |
|
|
625 | PL_retstack_ix = 0; |
|
|
626 | PL_retstack_max = 4; |
|
|
627 | #endif |
|
|
628 | } |
|
|
629 | #endif |
|
|
630 | |
|
|
631 | /* |
|
|
632 | * destroy the stacks, the callchain etc... |
|
|
633 | */ |
|
|
634 | static void |
|
|
635 | coro_destruct_stacks (pTHX) |
|
|
636 | { |
104 | while (PL_curstackinfo->si_next) |
637 | while (PL_curstackinfo->si_next) |
105 | PL_curstackinfo = PL_curstackinfo->si_next; |
638 | PL_curstackinfo = PL_curstackinfo->si_next; |
|
|
639 | |
106 | while (PL_curstackinfo) { |
640 | while (PL_curstackinfo) |
|
|
641 | { |
107 | PERL_SI *p = PL_curstackinfo->si_prev; |
642 | PERL_SI *p = PL_curstackinfo->si_prev; |
108 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
643 | |
|
|
644 | if (!IN_DESTRUCT) |
|
|
645 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
|
|
646 | |
109 | Safefree(PL_curstackinfo->si_cxstack); |
647 | Safefree (PL_curstackinfo->si_cxstack); |
110 | Safefree(PL_curstackinfo); |
648 | Safefree (PL_curstackinfo); |
111 | PL_curstackinfo = p; |
649 | PL_curstackinfo = p; |
112 | } |
650 | } |
|
|
651 | |
113 | Safefree(PL_tmps_stack); |
652 | Safefree (PL_tmps_stack); |
114 | Safefree(PL_markstack); |
653 | Safefree (PL_markstack); |
115 | Safefree(PL_scopestack); |
654 | Safefree (PL_scopestack); |
116 | Safefree(PL_savestack); |
655 | Safefree (PL_savestack); |
|
|
656 | #if !PERL_VERSION_ATLEAST (5,10,0) |
117 | Safefree(PL_retstack); |
657 | Safefree (PL_retstack); |
|
|
658 | #endif |
118 | } |
659 | } |
119 | |
660 | |
120 | MODULE = Coro::State PACKAGE = Coro::State |
661 | static size_t |
|
|
662 | coro_rss (pTHX_ struct coro *coro) |
|
|
663 | { |
|
|
664 | size_t rss = sizeof (*coro); |
121 | |
665 | |
|
|
666 | if (coro->mainstack) |
|
|
667 | { |
|
|
668 | perl_slots tmp_slot; |
|
|
669 | perl_slots *slot; |
|
|
670 | |
|
|
671 | if (coro->flags & CF_RUNNING) |
|
|
672 | { |
|
|
673 | slot = &tmp_slot; |
|
|
674 | |
|
|
675 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
676 | # include "state.h" |
|
|
677 | #undef VAR |
|
|
678 | } |
|
|
679 | else |
|
|
680 | slot = coro->slot; |
|
|
681 | |
|
|
682 | if (slot) |
|
|
683 | { |
|
|
684 | rss += sizeof (slot->curstackinfo); |
|
|
685 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
686 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
687 | rss += slot->tmps_max * sizeof (SV *); |
|
|
688 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
689 | rss += slot->scopestack_max * sizeof (I32); |
|
|
690 | rss += slot->savestack_max * sizeof (ANY); |
|
|
691 | |
|
|
692 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
693 | rss += slot->retstack_max * sizeof (OP *); |
|
|
694 | #endif |
|
|
695 | } |
|
|
696 | } |
|
|
697 | |
|
|
698 | return rss; |
|
|
699 | } |
|
|
700 | |
|
|
701 | /** coroutine stack handling ************************************************/ |
|
|
702 | |
|
|
703 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
704 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
705 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
706 | |
|
|
707 | /* apparently < 5.8.8 */ |
|
|
708 | #ifndef MgPV_nolen_const |
|
|
709 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
710 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
711 | (const char*)(mg)->mg_ptr) |
|
|
712 | #endif |
|
|
713 | |
|
|
714 | /* |
|
|
715 | * This overrides the default magic get method of %SIG elements. |
|
|
716 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
717 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
718 | * readback here. |
|
|
719 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
720 | * not expecting this to actually change the hook. This is a potential problem |
|
|
721 | * when a schedule happens then, but we ignore this. |
|
|
722 | */ |
|
|
723 | static int |
|
|
724 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
725 | { |
|
|
726 | const char *s = MgPV_nolen_const (mg); |
|
|
727 | |
|
|
728 | if (*s == '_') |
|
|
729 | { |
|
|
730 | SV **svp = 0; |
|
|
731 | |
|
|
732 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
733 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
734 | |
|
|
735 | if (svp) |
|
|
736 | { |
|
|
737 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
738 | return 0; |
|
|
739 | } |
|
|
740 | } |
|
|
741 | |
|
|
742 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
743 | } |
|
|
744 | |
|
|
745 | static int |
|
|
746 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
747 | { |
|
|
748 | const char *s = MgPV_nolen_const (mg); |
|
|
749 | |
|
|
750 | if (*s == '_') |
|
|
751 | { |
|
|
752 | SV **svp = 0; |
|
|
753 | |
|
|
754 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
755 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
756 | |
|
|
757 | if (svp) |
|
|
758 | { |
|
|
759 | SV *old = *svp; |
|
|
760 | *svp = 0; |
|
|
761 | SvREFCNT_dec (old); |
|
|
762 | return 0; |
|
|
763 | } |
|
|
764 | } |
|
|
765 | |
|
|
766 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
767 | } |
|
|
768 | |
|
|
769 | static int |
|
|
770 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
771 | { |
|
|
772 | const char *s = MgPV_nolen_const (mg); |
|
|
773 | |
|
|
774 | if (*s == '_') |
|
|
775 | { |
|
|
776 | SV **svp = 0; |
|
|
777 | |
|
|
778 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
779 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
780 | |
|
|
781 | if (svp) |
|
|
782 | { |
|
|
783 | SV *old = *svp; |
|
|
784 | *svp = newSVsv (sv); |
|
|
785 | SvREFCNT_dec (old); |
|
|
786 | return 0; |
|
|
787 | } |
|
|
788 | } |
|
|
789 | |
|
|
790 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
791 | } |
|
|
792 | |
|
|
793 | static void |
|
|
794 | coro_setup (pTHX_ struct coro *coro) |
|
|
795 | { |
|
|
796 | /* |
|
|
797 | * emulate part of the perl startup here. |
|
|
798 | */ |
|
|
799 | coro_init_stacks (aTHX); |
|
|
800 | |
|
|
801 | PL_runops = RUNOPS_DEFAULT; |
|
|
802 | PL_curcop = &PL_compiling; |
|
|
803 | PL_in_eval = EVAL_NULL; |
|
|
804 | PL_comppad = 0; |
|
|
805 | PL_curpm = 0; |
|
|
806 | PL_curpad = 0; |
|
|
807 | PL_localizing = 0; |
|
|
808 | PL_dirty = 0; |
|
|
809 | PL_restartop = 0; |
|
|
810 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
811 | PL_parser = 0; |
|
|
812 | #endif |
|
|
813 | |
|
|
814 | /* recreate the die/warn hooks */ |
|
|
815 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
816 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
817 | |
|
|
818 | GvSV (PL_defgv) = newSV (0); |
|
|
819 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
820 | GvSV (PL_errgv) = newSV (0); |
|
|
821 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
822 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
823 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
|
|
824 | |
|
|
825 | { |
|
|
826 | dSP; |
|
|
827 | LOGOP myop; |
|
|
828 | |
|
|
829 | Zero (&myop, 1, LOGOP); |
|
|
830 | myop.op_next = Nullop; |
|
|
831 | myop.op_flags = OPf_WANT_VOID; |
|
|
832 | |
|
|
833 | PUSHMARK (SP); |
|
|
834 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
835 | PUTBACK; |
|
|
836 | PL_op = (OP *)&myop; |
|
|
837 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
838 | SPAGAIN; |
|
|
839 | } |
|
|
840 | |
|
|
841 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
842 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
843 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
844 | * so we ENTER here for symmetry |
|
|
845 | */ |
|
|
846 | ENTER; |
|
|
847 | } |
|
|
848 | |
|
|
849 | static void |
|
|
850 | coro_destruct (pTHX_ struct coro *coro) |
|
|
851 | { |
|
|
852 | if (!IN_DESTRUCT) |
|
|
853 | { |
|
|
854 | /* restore all saved variables and stuff */ |
|
|
855 | LEAVE_SCOPE (0); |
|
|
856 | assert (PL_tmps_floor == -1); |
|
|
857 | |
|
|
858 | /* free all temporaries */ |
|
|
859 | FREETMPS; |
|
|
860 | assert (PL_tmps_ix == -1); |
|
|
861 | |
|
|
862 | /* unwind all extra stacks */ |
|
|
863 | POPSTACK_TO (PL_mainstack); |
|
|
864 | |
|
|
865 | /* unwind main stack */ |
|
|
866 | dounwind (-1); |
|
|
867 | } |
|
|
868 | |
|
|
869 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
870 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
871 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
872 | SvREFCNT_dec (PL_defoutgv); |
|
|
873 | SvREFCNT_dec (PL_rs); |
|
|
874 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
875 | |
|
|
876 | SvREFCNT_dec (PL_diehook); |
|
|
877 | SvREFCNT_dec (PL_warnhook); |
|
|
878 | |
|
|
879 | SvREFCNT_dec (coro->saved_deffh); |
|
|
880 | SvREFCNT_dec (coro->throw); |
|
|
881 | |
|
|
882 | coro_destruct_stacks (aTHX); |
|
|
883 | } |
|
|
884 | |
|
|
885 | static void |
|
|
886 | free_coro_mortal (pTHX) |
|
|
887 | { |
|
|
888 | if (expect_true (coro_mortal)) |
|
|
889 | { |
|
|
890 | SvREFCNT_dec (coro_mortal); |
|
|
891 | coro_mortal = 0; |
|
|
892 | } |
|
|
893 | } |
|
|
894 | |
|
|
895 | static int |
|
|
896 | runops_trace (pTHX) |
|
|
897 | { |
|
|
898 | COP *oldcop = 0; |
|
|
899 | int oldcxix = -2; |
|
|
900 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
901 | coro_cctx *cctx = coro->cctx; |
|
|
902 | |
|
|
903 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
904 | { |
|
|
905 | PERL_ASYNC_CHECK (); |
|
|
906 | |
|
|
907 | if (cctx->flags & CC_TRACE_ALL) |
|
|
908 | { |
|
|
909 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
910 | { |
|
|
911 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
912 | SV **bot, **top; |
|
|
913 | AV *av = newAV (); /* return values */ |
|
|
914 | SV **cb; |
|
|
915 | dSP; |
|
|
916 | |
|
|
917 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
918 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
919 | if (isGV (gv)) |
|
|
920 | gv_efullname3 (fullname, gv, 0); |
|
|
921 | |
|
|
922 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
923 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
924 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
925 | : bot; |
|
|
926 | |
|
|
927 | av_extend (av, top - bot); |
|
|
928 | while (bot < top) |
|
|
929 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
930 | |
|
|
931 | PL_runops = RUNOPS_DEFAULT; |
|
|
932 | ENTER; |
|
|
933 | SAVETMPS; |
|
|
934 | EXTEND (SP, 3); |
|
|
935 | PUSHMARK (SP); |
|
|
936 | PUSHs (&PL_sv_no); |
|
|
937 | PUSHs (fullname); |
|
|
938 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
939 | PUTBACK; |
|
|
940 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
941 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
942 | SPAGAIN; |
|
|
943 | FREETMPS; |
|
|
944 | LEAVE; |
|
|
945 | PL_runops = runops_trace; |
|
|
946 | } |
|
|
947 | |
|
|
948 | if (oldcop != PL_curcop) |
|
|
949 | { |
|
|
950 | oldcop = PL_curcop; |
|
|
951 | |
|
|
952 | if (PL_curcop != &PL_compiling) |
|
|
953 | { |
|
|
954 | SV **cb; |
|
|
955 | |
|
|
956 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
957 | { |
|
|
958 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
959 | |
|
|
960 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
961 | { |
|
|
962 | runops_proc_t old_runops = PL_runops; |
|
|
963 | dSP; |
|
|
964 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
965 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
966 | |
|
|
967 | if (isGV (gv)) |
|
|
968 | gv_efullname3 (fullname, gv, 0); |
|
|
969 | |
|
|
970 | PL_runops = RUNOPS_DEFAULT; |
|
|
971 | ENTER; |
|
|
972 | SAVETMPS; |
|
|
973 | EXTEND (SP, 3); |
|
|
974 | PUSHMARK (SP); |
|
|
975 | PUSHs (&PL_sv_yes); |
|
|
976 | PUSHs (fullname); |
|
|
977 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
978 | PUTBACK; |
|
|
979 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
980 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
981 | SPAGAIN; |
|
|
982 | FREETMPS; |
|
|
983 | LEAVE; |
|
|
984 | PL_runops = runops_trace; |
|
|
985 | } |
|
|
986 | |
|
|
987 | oldcxix = cxstack_ix; |
|
|
988 | } |
|
|
989 | |
|
|
990 | if (cctx->flags & CC_TRACE_LINE) |
|
|
991 | { |
|
|
992 | dSP; |
|
|
993 | |
|
|
994 | PL_runops = RUNOPS_DEFAULT; |
|
|
995 | ENTER; |
|
|
996 | SAVETMPS; |
|
|
997 | EXTEND (SP, 3); |
|
|
998 | PL_runops = RUNOPS_DEFAULT; |
|
|
999 | PUSHMARK (SP); |
|
|
1000 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1001 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1002 | PUTBACK; |
|
|
1003 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1004 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1005 | SPAGAIN; |
|
|
1006 | FREETMPS; |
|
|
1007 | LEAVE; |
|
|
1008 | PL_runops = runops_trace; |
|
|
1009 | } |
|
|
1010 | } |
|
|
1011 | } |
|
|
1012 | } |
|
|
1013 | } |
|
|
1014 | |
|
|
1015 | TAINT_NOT; |
|
|
1016 | return 0; |
|
|
1017 | } |
|
|
1018 | |
|
|
1019 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
1020 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
1021 | /* during execution of a perl program */ |
|
|
1022 | static void NOINLINE |
|
|
1023 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
1024 | { |
|
|
1025 | dSP; |
|
|
1026 | LOGOP myop; |
|
|
1027 | |
|
|
1028 | PL_top_env = &PL_start_env; |
|
|
1029 | |
|
|
1030 | if (cctx->flags & CC_TRACE) |
|
|
1031 | PL_runops = runops_trace; |
|
|
1032 | |
|
|
1033 | Zero (&myop, 1, LOGOP); |
|
|
1034 | myop.op_next = PL_op; |
|
|
1035 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
|
|
1036 | |
|
|
1037 | PUSHMARK (SP); |
|
|
1038 | EXTEND (SP, 2); |
|
|
1039 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
1040 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
1041 | PUTBACK; |
|
|
1042 | PL_op = (OP *)&myop; |
|
|
1043 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1044 | SPAGAIN; |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | /* |
|
|
1048 | * this is a _very_ stripped down perl interpreter ;) |
|
|
1049 | */ |
|
|
1050 | static void |
|
|
1051 | cctx_run (void *arg) |
|
|
1052 | { |
|
|
1053 | dTHX; |
|
|
1054 | |
|
|
1055 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
|
|
1056 | UNLOCK; |
|
|
1057 | |
|
|
1058 | /* we now skip the entersub that lead to transfer() */ |
|
|
1059 | PL_op = PL_op->op_next; |
|
|
1060 | |
|
|
1061 | /* inject a fake subroutine call to cctx_init */ |
|
|
1062 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
|
|
1063 | |
|
|
1064 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
1065 | PL_restartop = PL_op; |
|
|
1066 | perl_run (PL_curinterp); |
|
|
1067 | |
|
|
1068 | /* |
|
|
1069 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1070 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1071 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
1072 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
1073 | * coroutine as Coro has no such concept |
|
|
1074 | */ |
|
|
1075 | PL_top_env = main_top_env; |
|
|
1076 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1077 | } |
|
|
1078 | |
|
|
1079 | static coro_cctx * |
|
|
1080 | cctx_new () |
|
|
1081 | { |
|
|
1082 | coro_cctx *cctx; |
|
|
1083 | void *stack_start; |
|
|
1084 | size_t stack_size; |
|
|
1085 | |
|
|
1086 | ++cctx_count; |
|
|
1087 | Newz (0, cctx, 1, coro_cctx); |
|
|
1088 | |
|
|
1089 | cctx->gen = cctx_gen; |
|
|
1090 | |
|
|
1091 | #if HAVE_MMAP |
|
|
1092 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
|
|
1093 | /* mmap supposedly does allocate-on-write for us */ |
|
|
1094 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
1095 | |
|
|
1096 | if (cctx->sptr != (void *)-1) |
|
|
1097 | { |
|
|
1098 | # if CORO_STACKGUARD |
|
|
1099 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
1100 | # endif |
|
|
1101 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
1102 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
1103 | cctx->flags |= CC_MAPPED; |
|
|
1104 | } |
|
|
1105 | else |
|
|
1106 | #endif |
|
|
1107 | { |
|
|
1108 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
|
|
1109 | New (0, cctx->sptr, cctx_stacksize, long); |
|
|
1110 | |
|
|
1111 | if (!cctx->sptr) |
|
|
1112 | { |
|
|
1113 | perror ("FATAL: unable to allocate stack for coroutine"); |
|
|
1114 | _exit (EXIT_FAILURE); |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | stack_start = cctx->sptr; |
|
|
1118 | stack_size = cctx->ssize; |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
1122 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
|
|
1123 | |
|
|
1124 | return cctx; |
|
|
1125 | } |
|
|
1126 | |
|
|
1127 | static void |
|
|
1128 | cctx_destroy (coro_cctx *cctx) |
|
|
1129 | { |
|
|
1130 | if (!cctx) |
|
|
1131 | return; |
|
|
1132 | |
|
|
1133 | --cctx_count; |
|
|
1134 | coro_destroy (&cctx->cctx); |
|
|
1135 | |
|
|
1136 | /* coro_transfer creates new, empty cctx's */ |
|
|
1137 | if (cctx->sptr) |
|
|
1138 | { |
|
|
1139 | #if CORO_USE_VALGRIND |
|
|
1140 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1141 | #endif |
|
|
1142 | |
|
|
1143 | #if HAVE_MMAP |
|
|
1144 | if (cctx->flags & CC_MAPPED) |
|
|
1145 | munmap (cctx->sptr, cctx->ssize); |
|
|
1146 | else |
|
|
1147 | #endif |
|
|
1148 | Safefree (cctx->sptr); |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | Safefree (cctx); |
|
|
1152 | } |
|
|
1153 | |
|
|
1154 | /* wether this cctx should be destructed */ |
|
|
1155 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
|
|
1156 | |
|
|
1157 | static coro_cctx * |
|
|
1158 | cctx_get (pTHX) |
|
|
1159 | { |
|
|
1160 | while (expect_true (cctx_first)) |
|
|
1161 | { |
|
|
1162 | coro_cctx *cctx = cctx_first; |
|
|
1163 | cctx_first = cctx->next; |
|
|
1164 | --cctx_idle; |
|
|
1165 | |
|
|
1166 | if (expect_true (!CCTX_EXPIRED (cctx))) |
|
|
1167 | return cctx; |
|
|
1168 | |
|
|
1169 | cctx_destroy (cctx); |
|
|
1170 | } |
|
|
1171 | |
|
|
1172 | return cctx_new (); |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | static void |
|
|
1176 | cctx_put (coro_cctx *cctx) |
|
|
1177 | { |
|
|
1178 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
|
|
1179 | |
|
|
1180 | /* free another cctx if overlimit */ |
|
|
1181 | if (expect_false (cctx_idle >= cctx_max_idle)) |
|
|
1182 | { |
|
|
1183 | coro_cctx *first = cctx_first; |
|
|
1184 | cctx_first = first->next; |
|
|
1185 | --cctx_idle; |
|
|
1186 | |
|
|
1187 | cctx_destroy (first); |
|
|
1188 | } |
|
|
1189 | |
|
|
1190 | ++cctx_idle; |
|
|
1191 | cctx->next = cctx_first; |
|
|
1192 | cctx_first = cctx; |
|
|
1193 | } |
|
|
1194 | |
|
|
1195 | /** coroutine switching *****************************************************/ |
|
|
1196 | |
|
|
1197 | static void |
|
|
1198 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1199 | { |
|
|
1200 | if (expect_true (prev != next)) |
|
|
1201 | { |
|
|
1202 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1203 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1204 | |
|
|
1205 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1206 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1207 | |
|
|
1208 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1209 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1210 | |
|
|
1211 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1212 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1213 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
|
|
1214 | #endif |
|
|
1215 | } |
|
|
1216 | } |
|
|
1217 | |
|
|
1218 | /* always use the TRANSFER macro */ |
|
|
1219 | static void NOINLINE |
|
|
1220 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
|
|
1221 | { |
|
|
1222 | dSTACKLEVEL; |
|
|
1223 | |
|
|
1224 | /* sometimes transfer is only called to set idle_sp */ |
|
|
1225 | if (expect_false (!next)) |
|
|
1226 | { |
|
|
1227 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
1228 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
1229 | } |
|
|
1230 | else if (expect_true (prev != next)) |
|
|
1231 | { |
|
|
1232 | static volatile int has_throw; |
|
|
1233 | coro_cctx *prev__cctx; |
|
|
1234 | |
|
|
1235 | if (expect_false (prev->flags & CF_NEW)) |
|
|
1236 | { |
|
|
1237 | /* create a new empty/source context */ |
|
|
1238 | ++cctx_count; |
|
|
1239 | New (0, prev->cctx, 1, coro_cctx); |
|
|
1240 | prev->cctx->sptr = 0; |
|
|
1241 | coro_create (&prev->cctx->cctx, 0, 0, 0, 0); |
|
|
1242 | |
|
|
1243 | prev->flags &= ~CF_NEW; |
|
|
1244 | prev->flags |= CF_RUNNING; |
|
|
1245 | } |
|
|
1246 | |
|
|
1247 | prev->flags &= ~CF_RUNNING; |
|
|
1248 | next->flags |= CF_RUNNING; |
|
|
1249 | |
|
|
1250 | LOCK; |
|
|
1251 | |
|
|
1252 | /* first get rid of the old state */ |
|
|
1253 | save_perl (aTHX_ prev); |
|
|
1254 | |
|
|
1255 | if (expect_false (next->flags & CF_NEW)) |
|
|
1256 | { |
|
|
1257 | /* need to start coroutine */ |
|
|
1258 | next->flags &= ~CF_NEW; |
|
|
1259 | /* setup coroutine call */ |
|
|
1260 | coro_setup (aTHX_ next); |
|
|
1261 | } |
|
|
1262 | else |
|
|
1263 | load_perl (aTHX_ next); |
|
|
1264 | |
|
|
1265 | prev__cctx = prev->cctx; |
|
|
1266 | |
|
|
1267 | /* possibly "free" the cctx */ |
|
|
1268 | if (expect_true ( |
|
|
1269 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1270 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1271 | && !force_cctx |
|
|
1272 | )) |
|
|
1273 | { |
|
|
1274 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
1275 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1276 | |
|
|
1277 | prev->cctx = 0; |
|
|
1278 | |
|
|
1279 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1280 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1281 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1282 | if (!next->cctx) |
|
|
1283 | next->cctx = cctx_get (aTHX); |
|
|
1284 | |
|
|
1285 | cctx_put (prev__cctx); |
|
|
1286 | } |
|
|
1287 | |
|
|
1288 | ++next->usecount; |
|
|
1289 | |
|
|
1290 | if (expect_true (!next->cctx)) |
|
|
1291 | next->cctx = cctx_get (aTHX); |
|
|
1292 | |
|
|
1293 | has_throw = !!next->throw; |
|
|
1294 | |
|
|
1295 | if (expect_false (prev__cctx != next->cctx)) |
|
|
1296 | { |
|
|
1297 | prev__cctx->top_env = PL_top_env; |
|
|
1298 | PL_top_env = next->cctx->top_env; |
|
|
1299 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
1300 | } |
|
|
1301 | |
|
|
1302 | free_coro_mortal (aTHX); |
|
|
1303 | UNLOCK; |
|
|
1304 | |
|
|
1305 | if (expect_false (has_throw)) |
|
|
1306 | { |
|
|
1307 | struct coro *coro = SvSTATE (coro_current); |
|
|
1308 | |
|
|
1309 | if (coro->throw) |
|
|
1310 | { |
|
|
1311 | SV *exception = coro->throw; |
|
|
1312 | coro->throw = 0; |
|
|
1313 | sv_setsv (ERRSV, exception); |
|
|
1314 | croak (0); |
|
|
1315 | } |
|
|
1316 | } |
|
|
1317 | } |
|
|
1318 | } |
|
|
1319 | |
|
|
1320 | struct transfer_args |
|
|
1321 | { |
|
|
1322 | struct coro *prev, *next; |
|
|
1323 | }; |
|
|
1324 | |
|
|
1325 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
|
|
1326 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
|
|
1327 | |
|
|
1328 | /** high level stuff ********************************************************/ |
|
|
1329 | |
|
|
1330 | static int |
|
|
1331 | coro_state_destroy (pTHX_ struct coro *coro) |
|
|
1332 | { |
|
|
1333 | if (coro->flags & CF_DESTROYED) |
|
|
1334 | return 0; |
|
|
1335 | |
|
|
1336 | coro->flags |= CF_DESTROYED; |
|
|
1337 | |
|
|
1338 | if (coro->flags & CF_READY) |
|
|
1339 | { |
|
|
1340 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1341 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1342 | LOCK; |
|
|
1343 | --coro_nready; |
|
|
1344 | UNLOCK; |
|
|
1345 | } |
|
|
1346 | else |
|
|
1347 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
|
|
1348 | |
|
|
1349 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1350 | { |
|
|
1351 | struct coro temp; |
|
|
1352 | |
|
|
1353 | if (coro->flags & CF_RUNNING) |
|
|
1354 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1355 | |
|
|
1356 | save_perl (aTHX_ &temp); |
|
|
1357 | load_perl (aTHX_ coro); |
|
|
1358 | |
|
|
1359 | coro_destruct (aTHX_ coro); |
|
|
1360 | |
|
|
1361 | load_perl (aTHX_ &temp); |
|
|
1362 | |
|
|
1363 | coro->slot = 0; |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | cctx_destroy (coro->cctx); |
|
|
1367 | SvREFCNT_dec (coro->args); |
|
|
1368 | |
|
|
1369 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1370 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1371 | if (coro == coro_first) coro_first = coro->next; |
|
|
1372 | |
|
|
1373 | return 1; |
|
|
1374 | } |
|
|
1375 | |
|
|
1376 | static int |
|
|
1377 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1378 | { |
|
|
1379 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
1380 | mg->mg_ptr = 0; |
|
|
1381 | |
|
|
1382 | coro->hv = 0; |
|
|
1383 | |
|
|
1384 | if (--coro->refcnt < 0) |
|
|
1385 | { |
|
|
1386 | coro_state_destroy (aTHX_ coro); |
|
|
1387 | Safefree (coro); |
|
|
1388 | } |
|
|
1389 | |
|
|
1390 | return 0; |
|
|
1391 | } |
|
|
1392 | |
|
|
1393 | static int |
|
|
1394 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
|
|
1395 | { |
|
|
1396 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
1397 | |
|
|
1398 | ++coro->refcnt; |
|
|
1399 | |
|
|
1400 | return 0; |
|
|
1401 | } |
|
|
1402 | |
|
|
1403 | static MGVTBL coro_state_vtbl = { |
|
|
1404 | 0, 0, 0, 0, |
|
|
1405 | coro_state_free, |
|
|
1406 | 0, |
|
|
1407 | #ifdef MGf_DUP |
|
|
1408 | coro_state_dup, |
|
|
1409 | #else |
|
|
1410 | # define MGf_DUP 0 |
|
|
1411 | #endif |
|
|
1412 | }; |
|
|
1413 | |
|
|
1414 | static void |
|
|
1415 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
|
|
1416 | { |
|
|
1417 | ta->prev = SvSTATE (prev_sv); |
|
|
1418 | ta->next = SvSTATE (next_sv); |
|
|
1419 | TRANSFER_CHECK (*ta); |
|
|
1420 | } |
|
|
1421 | |
|
|
1422 | static void |
|
|
1423 | api_transfer (SV *prev_sv, SV *next_sv) |
|
|
1424 | { |
|
|
1425 | dTHX; |
|
|
1426 | struct transfer_args ta; |
|
|
1427 | |
|
|
1428 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1429 | TRANSFER (ta, 1); |
|
|
1430 | } |
|
|
1431 | |
|
|
1432 | /** Coro ********************************************************************/ |
|
|
1433 | |
|
|
1434 | static void |
|
|
1435 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1436 | { |
|
|
1437 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1438 | } |
|
|
1439 | |
|
|
1440 | static SV * |
|
|
1441 | coro_deq (pTHX) |
|
|
1442 | { |
|
|
1443 | int prio; |
|
|
1444 | |
|
|
1445 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
|
|
1446 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
1447 | return av_shift (coro_ready [prio]); |
|
|
1448 | |
|
|
1449 | return 0; |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | static int |
|
|
1453 | api_ready (SV *coro_sv) |
|
|
1454 | { |
|
|
1455 | dTHX; |
|
|
1456 | struct coro *coro; |
|
|
1457 | SV *sv_hook; |
|
|
1458 | void (*xs_hook)(void); |
|
|
1459 | |
|
|
1460 | if (SvROK (coro_sv)) |
|
|
1461 | coro_sv = SvRV (coro_sv); |
|
|
1462 | |
|
|
1463 | coro = SvSTATE (coro_sv); |
|
|
1464 | |
|
|
1465 | if (coro->flags & CF_READY) |
|
|
1466 | return 0; |
|
|
1467 | |
|
|
1468 | coro->flags |= CF_READY; |
|
|
1469 | |
|
|
1470 | LOCK; |
|
|
1471 | |
|
|
1472 | sv_hook = coro_nready ? 0 : coro_readyhook; |
|
|
1473 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1474 | |
|
|
1475 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1476 | ++coro_nready; |
|
|
1477 | |
|
|
1478 | UNLOCK; |
|
|
1479 | |
|
|
1480 | if (sv_hook) |
|
|
1481 | { |
|
|
1482 | dSP; |
|
|
1483 | |
|
|
1484 | ENTER; |
|
|
1485 | SAVETMPS; |
|
|
1486 | |
|
|
1487 | PUSHMARK (SP); |
|
|
1488 | PUTBACK; |
|
|
1489 | call_sv (sv_hook, G_DISCARD); |
|
|
1490 | SPAGAIN; |
|
|
1491 | |
|
|
1492 | FREETMPS; |
|
|
1493 | LEAVE; |
|
|
1494 | } |
|
|
1495 | |
|
|
1496 | if (xs_hook) |
|
|
1497 | xs_hook (); |
|
|
1498 | |
|
|
1499 | return 1; |
|
|
1500 | } |
|
|
1501 | |
|
|
1502 | static int |
|
|
1503 | api_is_ready (SV *coro_sv) |
|
|
1504 | { |
|
|
1505 | dTHX; |
|
|
1506 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | static void |
|
|
1510 | prepare_schedule (pTHX_ struct transfer_args *ta) |
|
|
1511 | { |
|
|
1512 | SV *prev_sv, *next_sv; |
|
|
1513 | |
|
|
1514 | for (;;) |
|
|
1515 | { |
|
|
1516 | LOCK; |
|
|
1517 | next_sv = coro_deq (aTHX); |
|
|
1518 | |
|
|
1519 | /* nothing to schedule: call the idle handler */ |
|
|
1520 | if (expect_false (!next_sv)) |
|
|
1521 | { |
|
|
1522 | dSP; |
|
|
1523 | UNLOCK; |
|
|
1524 | |
|
|
1525 | ENTER; |
|
|
1526 | SAVETMPS; |
|
|
1527 | |
|
|
1528 | PUSHMARK (SP); |
|
|
1529 | PUTBACK; |
|
|
1530 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1531 | SPAGAIN; |
|
|
1532 | |
|
|
1533 | FREETMPS; |
|
|
1534 | LEAVE; |
|
|
1535 | continue; |
|
|
1536 | } |
|
|
1537 | |
|
|
1538 | ta->next = SvSTATE (next_sv); |
|
|
1539 | |
|
|
1540 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1541 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1542 | { |
|
|
1543 | UNLOCK; |
|
|
1544 | SvREFCNT_dec (next_sv); |
|
|
1545 | /* coro_nready is already taken care of by destroy */ |
|
|
1546 | continue; |
|
|
1547 | } |
|
|
1548 | |
|
|
1549 | --coro_nready; |
|
|
1550 | UNLOCK; |
|
|
1551 | break; |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | /* free this only after the transfer */ |
|
|
1555 | prev_sv = SvRV (coro_current); |
|
|
1556 | ta->prev = SvSTATE (prev_sv); |
|
|
1557 | TRANSFER_CHECK (*ta); |
|
|
1558 | assert (ta->next->flags & CF_READY); |
|
|
1559 | ta->next->flags &= ~CF_READY; |
|
|
1560 | SvRV_set (coro_current, next_sv); |
|
|
1561 | |
|
|
1562 | LOCK; |
|
|
1563 | free_coro_mortal (aTHX); |
|
|
1564 | coro_mortal = prev_sv; |
|
|
1565 | UNLOCK; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | static void |
|
|
1569 | prepare_cede (pTHX_ struct transfer_args *ta) |
|
|
1570 | { |
|
|
1571 | api_ready (coro_current); |
|
|
1572 | prepare_schedule (aTHX_ ta); |
|
|
1573 | } |
|
|
1574 | |
|
|
1575 | static int |
|
|
1576 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1577 | { |
|
|
1578 | if (coro_nready) |
|
|
1579 | { |
|
|
1580 | SV *prev = SvRV (coro_current); |
|
|
1581 | prepare_schedule (aTHX_ ta); |
|
|
1582 | api_ready (prev); |
|
|
1583 | return 1; |
|
|
1584 | } |
|
|
1585 | else |
|
|
1586 | return 0; |
|
|
1587 | } |
|
|
1588 | |
|
|
1589 | static void |
|
|
1590 | api_schedule (void) |
|
|
1591 | { |
|
|
1592 | dTHX; |
|
|
1593 | struct transfer_args ta; |
|
|
1594 | |
|
|
1595 | prepare_schedule (aTHX_ &ta); |
|
|
1596 | TRANSFER (ta, 1); |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | static int |
|
|
1600 | api_cede (void) |
|
|
1601 | { |
|
|
1602 | dTHX; |
|
|
1603 | struct transfer_args ta; |
|
|
1604 | |
|
|
1605 | prepare_cede (aTHX_ &ta); |
|
|
1606 | |
|
|
1607 | if (expect_true (ta.prev != ta.next)) |
|
|
1608 | { |
|
|
1609 | TRANSFER (ta, 1); |
|
|
1610 | return 1; |
|
|
1611 | } |
|
|
1612 | else |
|
|
1613 | return 0; |
|
|
1614 | } |
|
|
1615 | |
|
|
1616 | static int |
|
|
1617 | api_cede_notself (void) |
|
|
1618 | { |
|
|
1619 | dTHX; |
|
|
1620 | struct transfer_args ta; |
|
|
1621 | |
|
|
1622 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1623 | { |
|
|
1624 | TRANSFER (ta, 1); |
|
|
1625 | return 1; |
|
|
1626 | } |
|
|
1627 | else |
|
|
1628 | return 0; |
|
|
1629 | } |
|
|
1630 | |
|
|
1631 | static void |
|
|
1632 | api_trace (SV *coro_sv, int flags) |
|
|
1633 | { |
|
|
1634 | dTHX; |
|
|
1635 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1636 | |
|
|
1637 | if (flags & CC_TRACE) |
|
|
1638 | { |
|
|
1639 | if (!coro->cctx) |
|
|
1640 | coro->cctx = cctx_new (); |
|
|
1641 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1642 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1643 | |
|
|
1644 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1645 | } |
|
|
1646 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1647 | { |
|
|
1648 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1649 | |
|
|
1650 | if (coro->flags & CF_RUNNING) |
|
|
1651 | PL_runops = RUNOPS_DEFAULT; |
|
|
1652 | else |
|
|
1653 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1654 | } |
|
|
1655 | } |
|
|
1656 | |
|
|
1657 | #if 0 |
|
|
1658 | static int |
|
|
1659 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1660 | { |
|
|
1661 | AV *padlist; |
|
|
1662 | AV *av = (AV *)mg->mg_obj; |
|
|
1663 | |
|
|
1664 | abort (); |
|
|
1665 | |
|
|
1666 | return 0; |
|
|
1667 | } |
|
|
1668 | |
|
|
1669 | static MGVTBL coro_gensub_vtbl = { |
|
|
1670 | 0, 0, 0, 0, |
|
|
1671 | coro_gensub_free |
|
|
1672 | }; |
|
|
1673 | #endif |
|
|
1674 | |
|
|
1675 | /*****************************************************************************/ |
|
|
1676 | /* PerlIO::cede */ |
|
|
1677 | |
|
|
1678 | typedef struct |
|
|
1679 | { |
|
|
1680 | PerlIOBuf base; |
|
|
1681 | NV next, every; |
|
|
1682 | } PerlIOCede; |
|
|
1683 | |
|
|
1684 | static IV |
|
|
1685 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1686 | { |
|
|
1687 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1688 | |
|
|
1689 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1690 | self->next = nvtime () + self->every; |
|
|
1691 | |
|
|
1692 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1693 | } |
|
|
1694 | |
|
|
1695 | static SV * |
|
|
1696 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1697 | { |
|
|
1698 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1699 | |
|
|
1700 | return newSVnv (self->every); |
|
|
1701 | } |
|
|
1702 | |
|
|
1703 | static IV |
|
|
1704 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1705 | { |
|
|
1706 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1707 | double now = nvtime (); |
|
|
1708 | |
|
|
1709 | if (now >= self->next) |
|
|
1710 | { |
|
|
1711 | api_cede (); |
|
|
1712 | self->next = now + self->every; |
|
|
1713 | } |
|
|
1714 | |
|
|
1715 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | static PerlIO_funcs PerlIO_cede = |
|
|
1719 | { |
|
|
1720 | sizeof(PerlIO_funcs), |
|
|
1721 | "cede", |
|
|
1722 | sizeof(PerlIOCede), |
|
|
1723 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1724 | PerlIOCede_pushed, |
|
|
1725 | PerlIOBuf_popped, |
|
|
1726 | PerlIOBuf_open, |
|
|
1727 | PerlIOBase_binmode, |
|
|
1728 | PerlIOCede_getarg, |
|
|
1729 | PerlIOBase_fileno, |
|
|
1730 | PerlIOBuf_dup, |
|
|
1731 | PerlIOBuf_read, |
|
|
1732 | PerlIOBuf_unread, |
|
|
1733 | PerlIOBuf_write, |
|
|
1734 | PerlIOBuf_seek, |
|
|
1735 | PerlIOBuf_tell, |
|
|
1736 | PerlIOBuf_close, |
|
|
1737 | PerlIOCede_flush, |
|
|
1738 | PerlIOBuf_fill, |
|
|
1739 | PerlIOBase_eof, |
|
|
1740 | PerlIOBase_error, |
|
|
1741 | PerlIOBase_clearerr, |
|
|
1742 | PerlIOBase_setlinebuf, |
|
|
1743 | PerlIOBuf_get_base, |
|
|
1744 | PerlIOBuf_bufsiz, |
|
|
1745 | PerlIOBuf_get_ptr, |
|
|
1746 | PerlIOBuf_get_cnt, |
|
|
1747 | PerlIOBuf_set_ptrcnt, |
|
|
1748 | }; |
|
|
1749 | |
|
|
1750 | |
|
|
1751 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
|
|
1752 | |
122 | PROTOTYPES: ENABLE |
1753 | PROTOTYPES: DISABLE |
123 | |
1754 | |
124 | Coro::State |
1755 | BOOT: |
125 | newprocess(proc) |
1756 | { |
126 | SV * proc |
1757 | #ifdef USE_ITHREADS |
127 | PROTOTYPE: & |
1758 | MUTEX_INIT (&coro_lock); |
|
|
1759 | #endif |
|
|
1760 | BOOT_PAGESIZE; |
|
|
1761 | |
|
|
1762 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1763 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1764 | |
|
|
1765 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1766 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1767 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
1768 | |
|
|
1769 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1770 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1771 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
1772 | |
|
|
1773 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
|
|
1774 | |
|
|
1775 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1776 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
|
|
1777 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1778 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
|
|
1779 | |
|
|
1780 | main_mainstack = PL_mainstack; |
|
|
1781 | main_top_env = PL_top_env; |
|
|
1782 | |
|
|
1783 | while (main_top_env->je_prev) |
|
|
1784 | main_top_env = main_top_env->je_prev; |
|
|
1785 | |
|
|
1786 | coroapi.ver = CORO_API_VERSION; |
|
|
1787 | coroapi.rev = CORO_API_REVISION; |
|
|
1788 | coroapi.transfer = api_transfer; |
|
|
1789 | |
|
|
1790 | { |
|
|
1791 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
1792 | |
|
|
1793 | if (!svp) croak ("Time::HiRes is required"); |
|
|
1794 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
1795 | |
|
|
1796 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
1797 | } |
|
|
1798 | |
|
|
1799 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
|
|
1800 | } |
|
|
1801 | |
|
|
1802 | SV * |
|
|
1803 | new (char *klass, ...) |
128 | CODE: |
1804 | CODE: |
129 | Coro__State coro; |
1805 | { |
130 | |
1806 | struct coro *coro; |
|
|
1807 | MAGIC *mg; |
|
|
1808 | HV *hv; |
|
|
1809 | int i; |
|
|
1810 | |
131 | New (0, coro, 1, struct coro); |
1811 | Newz (0, coro, 1, struct coro); |
|
|
1812 | coro->args = newAV (); |
|
|
1813 | coro->flags = CF_NEW; |
132 | |
1814 | |
133 | coro->mainstack = 0; /* actual work is done inside transfer */ |
1815 | if (coro_first) coro_first->prev = coro; |
134 | coro->proc = SvREFCNT_inc (proc); |
1816 | coro->next = coro_first; |
|
|
1817 | coro_first = coro; |
135 | |
1818 | |
136 | RETVAL = coro; |
1819 | coro->hv = hv = newHV (); |
|
|
1820 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1821 | mg->mg_flags |= MGf_DUP; |
|
|
1822 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1823 | |
|
|
1824 | av_extend (coro->args, items - 1); |
|
|
1825 | for (i = 1; i < items; i++) |
|
|
1826 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1827 | } |
137 | OUTPUT: |
1828 | OUTPUT: |
138 | RETVAL |
1829 | RETVAL |
139 | |
1830 | |
|
|
1831 | # these not obviously related functions are all rolled into the same xs |
|
|
1832 | # function to increase chances that they all will call transfer with the same |
|
|
1833 | # stack offset |
140 | void |
1834 | void |
141 | transfer(prev,next) |
1835 | _set_stacklevel (...) |
142 | Coro::State_or_hashref prev |
1836 | ALIAS: |
143 | Coro::State_or_hashref next |
1837 | Coro::State::transfer = 1 |
|
|
1838 | Coro::schedule = 2 |
|
|
1839 | Coro::cede = 3 |
|
|
1840 | Coro::cede_notself = 4 |
144 | CODE: |
1841 | CODE: |
|
|
1842 | { |
|
|
1843 | struct transfer_args ta; |
145 | |
1844 | |
146 | if (prev != next) |
1845 | PUTBACK; |
|
|
1846 | switch (ix) |
147 | { |
1847 | { |
|
|
1848 | case 0: |
|
|
1849 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1850 | ta.next = 0; |
|
|
1851 | break; |
|
|
1852 | |
|
|
1853 | case 1: |
|
|
1854 | if (items != 2) |
|
|
1855 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1856 | |
|
|
1857 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1858 | break; |
|
|
1859 | |
|
|
1860 | case 2: |
|
|
1861 | prepare_schedule (aTHX_ &ta); |
|
|
1862 | break; |
|
|
1863 | |
|
|
1864 | case 3: |
|
|
1865 | prepare_cede (aTHX_ &ta); |
|
|
1866 | break; |
|
|
1867 | |
|
|
1868 | case 4: |
|
|
1869 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1870 | XSRETURN_EMPTY; |
|
|
1871 | |
|
|
1872 | break; |
|
|
1873 | } |
|
|
1874 | SPAGAIN; |
|
|
1875 | |
|
|
1876 | BARRIER; |
148 | PUTBACK; |
1877 | PUTBACK; |
149 | SAVE (prev); |
1878 | TRANSFER (ta, 0); |
|
|
1879 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1880 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1881 | } |
150 | |
1882 | |
|
|
1883 | bool |
|
|
1884 | _destroy (SV *coro_sv) |
|
|
1885 | CODE: |
|
|
1886 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1887 | OUTPUT: |
|
|
1888 | RETVAL |
|
|
1889 | |
|
|
1890 | void |
|
|
1891 | _exit (int code) |
|
|
1892 | PROTOTYPE: $ |
|
|
1893 | CODE: |
|
|
1894 | _exit (code); |
|
|
1895 | |
|
|
1896 | int |
|
|
1897 | cctx_stacksize (int new_stacksize = 0) |
|
|
1898 | CODE: |
|
|
1899 | RETVAL = cctx_stacksize; |
|
|
1900 | if (new_stacksize) |
151 | /* |
1901 | { |
152 | * this could be done in newprocess which would to |
1902 | cctx_stacksize = new_stacksize; |
153 | * extremely elegant and fast (just PUTBACK/SAVE/LOAD/SPAGAIN) |
1903 | ++cctx_gen; |
154 | * code here, but lazy allocation of stacks has also |
|
|
155 | * some virtues and the overhead of the if() is nil. |
|
|
156 | */ |
1904 | } |
157 | if (next->mainstack) |
1905 | OUTPUT: |
|
|
1906 | RETVAL |
|
|
1907 | |
|
|
1908 | int |
|
|
1909 | cctx_max_idle (int max_idle = 0) |
|
|
1910 | CODE: |
|
|
1911 | RETVAL = cctx_max_idle; |
|
|
1912 | if (max_idle > 1) |
|
|
1913 | cctx_max_idle = max_idle; |
|
|
1914 | OUTPUT: |
|
|
1915 | RETVAL |
|
|
1916 | |
|
|
1917 | int |
|
|
1918 | cctx_count () |
|
|
1919 | CODE: |
|
|
1920 | RETVAL = cctx_count; |
|
|
1921 | OUTPUT: |
|
|
1922 | RETVAL |
|
|
1923 | |
|
|
1924 | int |
|
|
1925 | cctx_idle () |
|
|
1926 | CODE: |
|
|
1927 | RETVAL = cctx_idle; |
|
|
1928 | OUTPUT: |
|
|
1929 | RETVAL |
|
|
1930 | |
|
|
1931 | void |
|
|
1932 | list () |
|
|
1933 | PPCODE: |
|
|
1934 | { |
|
|
1935 | struct coro *coro; |
|
|
1936 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1937 | if (coro->hv) |
|
|
1938 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1939 | } |
|
|
1940 | |
|
|
1941 | void |
|
|
1942 | call (Coro::State coro, SV *coderef) |
|
|
1943 | ALIAS: |
|
|
1944 | eval = 1 |
|
|
1945 | CODE: |
|
|
1946 | { |
|
|
1947 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
1948 | { |
|
|
1949 | struct coro temp; |
|
|
1950 | |
|
|
1951 | if (!(coro->flags & CF_RUNNING)) |
158 | { |
1952 | { |
159 | LOAD (next); |
1953 | PUTBACK; |
160 | next->mainstack = 0; /* unnecessary but much cleaner */ |
1954 | save_perl (aTHX_ &temp); |
|
|
1955 | load_perl (aTHX_ coro); |
|
|
1956 | } |
|
|
1957 | |
|
|
1958 | { |
|
|
1959 | dSP; |
|
|
1960 | ENTER; |
|
|
1961 | SAVETMPS; |
|
|
1962 | PUTBACK; |
|
|
1963 | PUSHSTACK; |
|
|
1964 | PUSHMARK (SP); |
|
|
1965 | |
|
|
1966 | if (ix) |
|
|
1967 | eval_sv (coderef, 0); |
|
|
1968 | else |
|
|
1969 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1970 | |
|
|
1971 | POPSTACK; |
|
|
1972 | SPAGAIN; |
|
|
1973 | FREETMPS; |
|
|
1974 | LEAVE; |
|
|
1975 | PUTBACK; |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | if (!(coro->flags & CF_RUNNING)) |
|
|
1979 | { |
|
|
1980 | save_perl (aTHX_ coro); |
|
|
1981 | load_perl (aTHX_ &temp); |
161 | SPAGAIN; |
1982 | SPAGAIN; |
162 | } |
1983 | } |
163 | else |
|
|
164 | { |
|
|
165 | /* |
|
|
166 | * emulate part of the perl startup here. |
|
|
167 | */ |
|
|
168 | UNOP myop; |
|
|
169 | |
|
|
170 | init_stacks (); |
|
|
171 | PL_op = (OP *)&myop; |
|
|
172 | /*PL_curcop = 0;*/ |
|
|
173 | GvAV (PL_defgv) = newAV (); |
|
|
174 | |
|
|
175 | SPAGAIN; |
|
|
176 | Zero(&myop, 1, UNOP); |
|
|
177 | myop.op_next = Nullop; |
|
|
178 | myop.op_flags = OPf_WANT_VOID; |
|
|
179 | |
|
|
180 | EXTEND (SP,1); |
|
|
181 | PUSHs (next->proc); |
|
|
182 | |
|
|
183 | PUTBACK; |
|
|
184 | /* |
|
|
185 | * the next line is slightly wrong, as PL_op->op_next |
|
|
186 | * is actually being executed so we skip the first op |
|
|
187 | * that doens't matter, though, since it is only |
|
|
188 | * pp_nextstate and we never return... |
|
|
189 | */ |
|
|
190 | PL_op = Perl_pp_entersub(aTHX); |
|
|
191 | SPAGAIN; |
|
|
192 | |
|
|
193 | ENTER; |
|
|
194 | } |
|
|
195 | } |
1984 | } |
|
|
1985 | } |
|
|
1986 | |
|
|
1987 | SV * |
|
|
1988 | is_ready (Coro::State coro) |
|
|
1989 | PROTOTYPE: $ |
|
|
1990 | ALIAS: |
|
|
1991 | is_ready = CF_READY |
|
|
1992 | is_running = CF_RUNNING |
|
|
1993 | is_new = CF_NEW |
|
|
1994 | is_destroyed = CF_DESTROYED |
|
|
1995 | CODE: |
|
|
1996 | RETVAL = boolSV (coro->flags & ix); |
|
|
1997 | OUTPUT: |
|
|
1998 | RETVAL |
196 | |
1999 | |
197 | void |
2000 | void |
198 | DESTROY(coro) |
2001 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2002 | |
|
|
2003 | SV * |
|
|
2004 | has_cctx (Coro::State coro) |
|
|
2005 | PROTOTYPE: $ |
|
|
2006 | CODE: |
|
|
2007 | RETVAL = boolSV (!!coro->cctx); |
|
|
2008 | OUTPUT: |
|
|
2009 | RETVAL |
|
|
2010 | |
|
|
2011 | int |
|
|
2012 | is_traced (Coro::State coro) |
|
|
2013 | PROTOTYPE: $ |
|
|
2014 | CODE: |
|
|
2015 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
2016 | OUTPUT: |
|
|
2017 | RETVAL |
|
|
2018 | |
|
|
2019 | UV |
199 | Coro::State coro |
2020 | rss (Coro::State coro) |
|
|
2021 | PROTOTYPE: $ |
|
|
2022 | ALIAS: |
|
|
2023 | usecount = 1 |
200 | CODE: |
2024 | CODE: |
|
|
2025 | switch (ix) |
|
|
2026 | { |
|
|
2027 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
2028 | case 1: RETVAL = coro->usecount; break; |
|
|
2029 | } |
|
|
2030 | OUTPUT: |
|
|
2031 | RETVAL |
201 | |
2032 | |
202 | if (coro->mainstack) |
2033 | void |
|
|
2034 | force_cctx () |
|
|
2035 | CODE: |
|
|
2036 | struct coro *coro = SvSTATE (coro_current); |
|
|
2037 | coro->cctx->idle_sp = 0; |
|
|
2038 | |
|
|
2039 | void |
|
|
2040 | swap_defsv (Coro::State self) |
|
|
2041 | PROTOTYPE: $ |
|
|
2042 | ALIAS: |
|
|
2043 | swap_defav = 1 |
|
|
2044 | CODE: |
|
|
2045 | if (!self->slot) |
|
|
2046 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
2047 | else |
203 | { |
2048 | { |
|
|
2049 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2050 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2051 | |
|
|
2052 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2053 | } |
|
|
2054 | |
|
|
2055 | MODULE = Coro::State PACKAGE = Coro |
|
|
2056 | |
|
|
2057 | BOOT: |
|
|
2058 | { |
|
|
2059 | int i; |
|
|
2060 | |
|
|
2061 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2062 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2063 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2064 | |
|
|
2065 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
2066 | SvREADONLY_on (coro_current); |
|
|
2067 | |
|
|
2068 | coro_stash = gv_stashpv ("Coro", TRUE); |
|
|
2069 | |
|
|
2070 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
|
|
2071 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
|
|
2072 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
|
|
2073 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
|
|
2074 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
|
|
2075 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
|
|
2076 | |
|
|
2077 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2078 | coro_ready[i] = newAV (); |
|
|
2079 | |
|
|
2080 | { |
|
|
2081 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
2082 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2083 | |
|
|
2084 | coroapi.schedule = api_schedule; |
|
|
2085 | coroapi.cede = api_cede; |
|
|
2086 | coroapi.cede_notself = api_cede_notself; |
|
|
2087 | coroapi.ready = api_ready; |
|
|
2088 | coroapi.is_ready = api_is_ready; |
|
|
2089 | coroapi.nready = &coro_nready; |
|
|
2090 | coroapi.current = coro_current; |
|
|
2091 | |
|
|
2092 | GCoroAPI = &coroapi; |
|
|
2093 | sv_setiv (sv, (IV)&coroapi); |
|
|
2094 | SvREADONLY_on (sv); |
|
|
2095 | } |
|
|
2096 | } |
|
|
2097 | |
|
|
2098 | void |
|
|
2099 | _set_current (SV *current) |
|
|
2100 | PROTOTYPE: $ |
|
|
2101 | CODE: |
|
|
2102 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
2103 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2104 | |
|
|
2105 | void |
|
|
2106 | _set_readyhook (SV *hook) |
|
|
2107 | PROTOTYPE: $ |
|
|
2108 | CODE: |
|
|
2109 | LOCK; |
|
|
2110 | SvREFCNT_dec (coro_readyhook); |
|
|
2111 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
|
|
2112 | UNLOCK; |
|
|
2113 | |
|
|
2114 | int |
|
|
2115 | prio (Coro::State coro, int newprio = 0) |
|
|
2116 | ALIAS: |
|
|
2117 | nice = 1 |
|
|
2118 | CODE: |
|
|
2119 | { |
|
|
2120 | RETVAL = coro->prio; |
|
|
2121 | |
|
|
2122 | if (items > 1) |
|
|
2123 | { |
|
|
2124 | if (ix) |
|
|
2125 | newprio = coro->prio - newprio; |
|
|
2126 | |
|
|
2127 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
2128 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
2129 | |
|
|
2130 | coro->prio = newprio; |
|
|
2131 | } |
|
|
2132 | } |
|
|
2133 | OUTPUT: |
|
|
2134 | RETVAL |
|
|
2135 | |
|
|
2136 | SV * |
|
|
2137 | ready (SV *self) |
|
|
2138 | PROTOTYPE: $ |
|
|
2139 | CODE: |
|
|
2140 | RETVAL = boolSV (api_ready (self)); |
|
|
2141 | OUTPUT: |
|
|
2142 | RETVAL |
|
|
2143 | |
|
|
2144 | int |
|
|
2145 | nready (...) |
|
|
2146 | PROTOTYPE: |
|
|
2147 | CODE: |
|
|
2148 | RETVAL = coro_nready; |
|
|
2149 | OUTPUT: |
|
|
2150 | RETVAL |
|
|
2151 | |
|
|
2152 | void |
|
|
2153 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2154 | PROTOTYPE: $;$ |
|
|
2155 | CODE: |
|
|
2156 | SvREFCNT_dec (self->throw); |
|
|
2157 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2158 | |
|
|
2159 | # for async_pool speedup |
|
|
2160 | void |
|
|
2161 | _pool_1 (SV *cb) |
|
|
2162 | CODE: |
|
|
2163 | { |
|
|
2164 | struct coro *coro = SvSTATE (coro_current); |
|
|
2165 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2166 | AV *defav = GvAV (PL_defgv); |
|
|
2167 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2168 | AV *invoke_av; |
|
|
2169 | int i, len; |
|
|
2170 | |
|
|
2171 | if (!invoke) |
|
|
2172 | { |
|
|
2173 | SV *old = PL_diehook; |
|
|
2174 | PL_diehook = 0; |
|
|
2175 | SvREFCNT_dec (old); |
|
|
2176 | croak ("\3async_pool terminate\2\n"); |
|
|
2177 | } |
|
|
2178 | |
|
|
2179 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2180 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2181 | |
|
|
2182 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2183 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2184 | |
|
|
2185 | invoke_av = (AV *)SvRV (invoke); |
|
|
2186 | len = av_len (invoke_av); |
|
|
2187 | |
|
|
2188 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2189 | |
|
|
2190 | if (len > 0) |
|
|
2191 | { |
|
|
2192 | av_fill (defav, len - 1); |
|
|
2193 | for (i = 0; i < len; ++i) |
|
|
2194 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2195 | } |
|
|
2196 | |
|
|
2197 | SvREFCNT_dec (invoke); |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | void |
|
|
2201 | _pool_2 (SV *cb) |
|
|
2202 | CODE: |
|
|
2203 | { |
|
|
2204 | struct coro *coro = SvSTATE (coro_current); |
|
|
2205 | |
|
|
2206 | sv_setsv (cb, &PL_sv_undef); |
|
|
2207 | |
|
|
2208 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2209 | coro->saved_deffh = 0; |
|
|
2210 | |
|
|
2211 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2212 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2213 | { |
|
|
2214 | SV *old = PL_diehook; |
|
|
2215 | PL_diehook = 0; |
|
|
2216 | SvREFCNT_dec (old); |
|
|
2217 | croak ("\3async_pool terminate\2\n"); |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | av_clear (GvAV (PL_defgv)); |
|
|
2221 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2222 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2223 | |
|
|
2224 | coro->prio = 0; |
|
|
2225 | |
|
|
2226 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2227 | api_trace (coro_current, 0); |
|
|
2228 | |
|
|
2229 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | #if 0 |
|
|
2233 | |
|
|
2234 | void |
|
|
2235 | _generator_call (...) |
|
|
2236 | PROTOTYPE: @ |
|
|
2237 | PPCODE: |
|
|
2238 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2239 | xxxx |
|
|
2240 | abort (); |
|
|
2241 | |
|
|
2242 | SV * |
|
|
2243 | gensub (SV *sub, ...) |
|
|
2244 | PROTOTYPE: &;@ |
|
|
2245 | CODE: |
|
|
2246 | { |
204 | struct coro temp; |
2247 | struct coro *coro; |
|
|
2248 | MAGIC *mg; |
|
|
2249 | CV *xcv; |
|
|
2250 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2251 | int i; |
205 | |
2252 | |
|
|
2253 | CvGV (ncv) = CvGV (cv); |
|
|
2254 | CvFILE (ncv) = CvFILE (cv); |
|
|
2255 | |
|
|
2256 | Newz (0, coro, 1, struct coro); |
|
|
2257 | coro->args = newAV (); |
|
|
2258 | coro->flags = CF_NEW; |
|
|
2259 | |
|
|
2260 | av_extend (coro->args, items - 1); |
|
|
2261 | for (i = 1; i < items; i++) |
|
|
2262 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2263 | |
|
|
2264 | CvISXSUB_on (ncv); |
|
|
2265 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2266 | |
|
|
2267 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2268 | |
|
|
2269 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2270 | CvANON_on (ncv); |
|
|
2271 | |
|
|
2272 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2273 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2274 | } |
|
|
2275 | OUTPUT: |
|
|
2276 | RETVAL |
|
|
2277 | |
|
|
2278 | #endif |
|
|
2279 | |
|
|
2280 | |
|
|
2281 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2282 | |
|
|
2283 | void |
|
|
2284 | _get_state (SV *self) |
|
|
2285 | PPCODE: |
|
|
2286 | { |
|
|
2287 | AV *defav = GvAV (PL_defgv); |
|
|
2288 | AV *av = newAV (); |
|
|
2289 | int i; |
|
|
2290 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2291 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2292 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2293 | SvPOK_only (data_sv); |
|
|
2294 | |
|
|
2295 | data->errorno = errno; |
|
|
2296 | data->laststype = PL_laststype; |
|
|
2297 | data->laststatval = PL_laststatval; |
|
|
2298 | data->statcache = PL_statcache; |
|
|
2299 | |
|
|
2300 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2301 | |
|
|
2302 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2303 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2304 | |
|
|
2305 | av_push (av, data_sv); |
|
|
2306 | |
|
|
2307 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2308 | |
|
|
2309 | api_ready (self); |
|
|
2310 | } |
|
|
2311 | |
|
|
2312 | void |
|
|
2313 | _set_state (SV *state) |
|
|
2314 | PROTOTYPE: $ |
|
|
2315 | PPCODE: |
|
|
2316 | { |
|
|
2317 | AV *av = (AV *)SvRV (state); |
|
|
2318 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2319 | int i; |
|
|
2320 | |
|
|
2321 | errno = data->errorno; |
|
|
2322 | PL_laststype = data->laststype; |
|
|
2323 | PL_laststatval = data->laststatval; |
|
|
2324 | PL_statcache = data->statcache; |
|
|
2325 | |
|
|
2326 | EXTEND (SP, AvFILLp (av)); |
|
|
2327 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2328 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2329 | } |
|
|
2330 | |
|
|
2331 | |
|
|
2332 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2333 | |
|
|
2334 | BOOT: |
|
|
2335 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2336 | |
|
|
2337 | SV * |
|
|
2338 | _schedule (...) |
|
|
2339 | PROTOTYPE: @ |
|
|
2340 | CODE: |
|
|
2341 | { |
|
|
2342 | static int incede; |
|
|
2343 | |
|
|
2344 | api_cede_notself (); |
|
|
2345 | |
|
|
2346 | ++incede; |
|
|
2347 | while (coro_nready >= incede && api_cede ()) |
|
|
2348 | ; |
|
|
2349 | |
|
|
2350 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2351 | if (coro_nready >= incede) |
|
|
2352 | { |
|
|
2353 | PUSHMARK (SP); |
206 | PUTBACK; |
2354 | PUTBACK; |
207 | SAVE((&temp)); |
2355 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
208 | LOAD(coro); |
|
|
209 | |
|
|
210 | S_nuke_stacks (); |
|
|
211 | SvREFCNT_dec ((SV *)GvAV (PL_defgv)); |
|
|
212 | |
|
|
213 | LOAD((&temp)); |
|
|
214 | SPAGAIN; |
2356 | SPAGAIN; |
215 | } |
2357 | } |
216 | |
2358 | |
217 | SvREFCNT_dec (coro->proc); |
2359 | --incede; |
218 | Safefree (coro); |
2360 | } |
219 | |
2361 | |
220 | |
2362 | |
|
|
2363 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2364 | |
|
|
2365 | BOOT: |
|
|
2366 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |