… | |
… | |
16 | |
16 | |
17 | #ifdef WIN32 |
17 | #ifdef WIN32 |
18 | # undef setjmp |
18 | # undef setjmp |
19 | # undef longjmp |
19 | # undef longjmp |
20 | # undef _exit |
20 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
21 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
22 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
23 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
24 | #endif |
25 | |
25 | |
26 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
… | |
… | |
55 | |
55 | |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
57 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
58 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
59 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
60 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
61 | |
61 | |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
63 | # ifndef PL_ppaddr |
63 | # ifndef PL_ppaddr |
64 | # define PL_ppaddr ppaddr |
64 | # define PL_ppaddr ppaddr |
65 | # endif |
65 | # endif |
… | |
… | |
95 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
96 | #endif |
96 | #endif |
97 | #ifndef newSV |
97 | #ifndef newSV |
98 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
99 | #endif |
99 | #endif |
|
|
100 | #ifndef CvISXSUB_on |
|
|
101 | # define CvISXSUB_on(cv) (void)cv |
|
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102 | #endif |
|
|
103 | #ifndef CvISXSUB |
|
|
104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
|
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105 | #endif |
|
|
106 | #ifndef Newx |
|
|
107 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
|
|
108 | #endif |
100 | |
109 | |
101 | /* 5.8.7 */ |
110 | /* 5.8.7 */ |
102 | #ifndef SvRV_set |
111 | #ifndef SvRV_set |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
112 | # define SvRV_set(s,v) SvRV(s) = (v) |
104 | #endif |
113 | #endif |
… | |
… | |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
125 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
117 | #endif |
126 | #endif |
118 | |
127 | |
119 | /* The next macros try to return the current stack pointer, in an as |
128 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
129 | * portable way as possible. */ |
|
|
130 | #if __GNUC__ >= 4 |
|
|
131 | # define dSTACKLEVEL int stacklevel_dummy |
|
|
132 | # define STACKLEVEL __builtin_frame_address (0) |
|
|
133 | #else |
121 | #define dSTACKLEVEL volatile char stacklevel |
134 | # define dSTACKLEVEL volatile void *stacklevel |
122 | #define STACKLEVEL ((void *)&stacklevel) |
135 | # define STACKLEVEL ((void *)&stacklevel) |
|
|
136 | #endif |
123 | |
137 | |
124 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
138 | #define IN_DESTRUCT PL_dirty |
125 | |
139 | |
126 | #if __GNUC__ >= 3 |
140 | #if __GNUC__ >= 3 |
127 | # define attribute(x) __attribute__(x) |
141 | # define attribute(x) __attribute__(x) |
128 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
142 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
129 | # define INLINE static inline |
143 | # define INLINE static inline |
130 | #else |
144 | #else |
131 | # define attribute(x) |
145 | # define attribute(x) |
132 | # define expect(expr,value) (expr) |
146 | # define expect(expr,value) (expr) |
133 | # define INLINE static |
147 | # define INLINE static |
… | |
… | |
137 | #define expect_true(expr) expect ((expr) != 0, 1) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
138 | |
152 | |
139 | #define NOINLINE attribute ((noinline)) |
153 | #define NOINLINE attribute ((noinline)) |
140 | |
154 | |
141 | #include "CoroAPI.h" |
155 | #include "CoroAPI.h" |
|
|
156 | #define GCoroAPI (&coroapi) /* very sneaky */ |
142 | |
157 | |
143 | #ifdef USE_ITHREADS |
158 | #ifdef USE_ITHREADS |
144 | |
|
|
145 | static perl_mutex coro_lock; |
|
|
146 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
|
|
147 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
|
148 | # if CORO_PTHREAD |
159 | # if CORO_PTHREAD |
149 | static void *coro_thx; |
160 | static void *coro_thx; |
150 | # endif |
161 | # endif |
|
|
162 | #endif |
151 | |
163 | |
152 | #else |
164 | #ifdef __linux |
153 | |
165 | # include <time.h> /* for timespec */ |
154 | # define LOCK (void)0 |
166 | # include <syscall.h> /* for SYS_* */ |
155 | # define UNLOCK (void)0 |
167 | # ifdef SYS_clock_gettime |
156 | |
168 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
169 | # define CORO_CLOCK_MONOTONIC 1 |
|
|
170 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
157 | #endif |
171 | # endif |
158 | |
172 | #endif |
159 | # undef LOCK |
|
|
160 | # define LOCK (void)0 |
|
|
161 | # undef UNLOCK |
|
|
162 | # define UNLOCK (void)0 |
|
|
163 | |
|
|
164 | /* helper storage struct for Coro::AIO */ |
|
|
165 | struct io_state |
|
|
166 | { |
|
|
167 | AV *res; |
|
|
168 | int errorno; |
|
|
169 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
170 | int laststatval; |
|
|
171 | Stat_t statcache; |
|
|
172 | }; |
|
|
173 | |
173 | |
174 | static double (*nvtime)(); /* so why doesn't it take void? */ |
174 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
175 | |
|
|
176 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
177 | #define CVf_SLF 0x4000 |
|
|
178 | static OP *pp_slf (pTHX); |
175 | |
179 | |
176 | static U32 cctx_gen; |
180 | static U32 cctx_gen; |
177 | static size_t cctx_stacksize = CORO_STACKSIZE; |
181 | static size_t cctx_stacksize = CORO_STACKSIZE; |
178 | static struct CoroAPI coroapi; |
182 | static struct CoroAPI coroapi; |
179 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
180 | static JMPENV *main_top_env; |
184 | static JMPENV *main_top_env; |
181 | static HV *coro_state_stash, *coro_stash; |
185 | static HV *coro_state_stash, *coro_stash; |
182 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
186 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
183 | static volatile struct coro *transfer_next; |
|
|
184 | |
187 | |
185 | struct transfer_args |
188 | static AV *av_destroy; /* destruction queue */ |
186 | { |
189 | static SV *sv_manager; /* the manager coro */ |
187 | struct coro *prev, *next; |
190 | static SV *sv_idle; /* $Coro::idle */ |
188 | }; |
|
|
189 | |
191 | |
190 | static GV *irsgv; /* $/ */ |
192 | static GV *irsgv; /* $/ */ |
191 | static GV *stdoutgv; /* *STDOUT */ |
193 | static GV *stdoutgv; /* *STDOUT */ |
192 | static SV *rv_diehook; |
194 | static SV *rv_diehook; |
193 | static SV *rv_warnhook; |
195 | static SV *rv_warnhook; |
194 | static HV *hv_sig; /* %SIG */ |
196 | static HV *hv_sig; /* %SIG */ |
195 | |
197 | |
196 | /* async_pool helper stuff */ |
198 | /* async_pool helper stuff */ |
197 | static SV *sv_pool_rss; |
199 | static SV *sv_pool_rss; |
198 | static SV *sv_pool_size; |
200 | static SV *sv_pool_size; |
|
|
201 | static SV *sv_async_pool_idle; /* description string */ |
199 | static AV *av_async_pool; |
202 | static AV *av_async_pool; /* idle pool */ |
|
|
203 | static SV *sv_Coro; /* class string */ |
|
|
204 | static CV *cv_pool_handler; |
|
|
205 | static CV *cv_coro_state_new; |
200 | |
206 | |
201 | /* Coro::AnyEvent */ |
207 | /* Coro::AnyEvent */ |
202 | static SV *sv_activity; |
208 | static SV *sv_activity; |
203 | |
209 | |
204 | static struct coro_cctx *cctx_first; |
210 | static struct coro_cctx *cctx_first; |
… | |
… | |
212 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
218 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
213 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
219 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
214 | }; |
220 | }; |
215 | |
221 | |
216 | /* this is a structure representing a c-level coroutine */ |
222 | /* this is a structure representing a c-level coroutine */ |
217 | typedef struct coro_cctx { |
223 | typedef struct coro_cctx |
|
|
224 | { |
218 | struct coro_cctx *next; |
225 | struct coro_cctx *next; |
219 | |
226 | |
220 | /* the stack */ |
227 | /* the stack */ |
221 | void *sptr; |
228 | void *sptr; |
222 | size_t ssize; |
229 | size_t ssize; |
… | |
… | |
232 | int valgrind_id; |
239 | int valgrind_id; |
233 | #endif |
240 | #endif |
234 | unsigned char flags; |
241 | unsigned char flags; |
235 | } coro_cctx; |
242 | } coro_cctx; |
236 | |
243 | |
|
|
244 | coro_cctx *cctx_current; /* the currently running cctx */ |
|
|
245 | |
|
|
246 | /*****************************************************************************/ |
|
|
247 | |
237 | enum { |
248 | enum { |
238 | CF_RUNNING = 0x0001, /* coroutine is running */ |
249 | CF_RUNNING = 0x0001, /* coroutine is running */ |
239 | CF_READY = 0x0002, /* coroutine is ready */ |
250 | CF_READY = 0x0002, /* coroutine is ready */ |
240 | CF_NEW = 0x0004, /* has never been switched to */ |
251 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
252 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
|
|
253 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
242 | }; |
254 | }; |
243 | |
255 | |
244 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
256 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
245 | typedef struct { |
257 | typedef struct |
|
|
258 | { |
246 | SV *defsv; |
259 | SV *defsv; |
247 | AV *defav; |
260 | AV *defav; |
248 | SV *errsv; |
261 | SV *errsv; |
249 | SV *irsgv; |
262 | SV *irsgv; |
|
|
263 | HV *hinthv; |
250 | #define VAR(name,type) type name; |
264 | #define VAR(name,type) type name; |
251 | # include "state.h" |
265 | # include "state.h" |
252 | #undef VAR |
266 | #undef VAR |
253 | } perl_slots; |
267 | } perl_slots; |
254 | |
268 | |
255 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
269 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
256 | |
270 | |
257 | /* this is a structure representing a perl-level coroutine */ |
271 | /* this is a structure representing a perl-level coroutine */ |
258 | struct coro { |
272 | struct coro { |
259 | /* the c coroutine allocated to this perl coroutine, if any */ |
273 | /* the C coroutine allocated to this perl coroutine, if any */ |
260 | coro_cctx *cctx; |
274 | coro_cctx *cctx; |
261 | |
275 | |
262 | /* process data */ |
276 | /* ready queue */ |
|
|
277 | struct coro *next_ready; |
|
|
278 | |
|
|
279 | /* state data */ |
|
|
280 | struct CoroSLF slf_frame; /* saved slf frame */ |
263 | AV *mainstack; |
281 | AV *mainstack; |
264 | perl_slots *slot; /* basically the saved sp */ |
282 | perl_slots *slot; /* basically the saved sp */ |
265 | |
283 | |
|
|
284 | CV *startcv; /* the CV to execute */ |
266 | AV *args; /* data associated with this coroutine (initial args) */ |
285 | AV *args; /* data associated with this coroutine (initial args) */ |
267 | int refcnt; /* coroutines are refcounted, yes */ |
286 | int refcnt; /* coroutines are refcounted, yes */ |
268 | int flags; /* CF_ flags */ |
287 | int flags; /* CF_ flags */ |
269 | HV *hv; /* the perl hash associated with this coro, if any */ |
288 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
289 | void (*on_destroy)(pTHX_ struct coro *coro); |
270 | |
290 | |
271 | /* statistics */ |
291 | /* statistics */ |
272 | int usecount; /* number of transfers to this coro */ |
292 | int usecount; /* number of transfers to this coro */ |
273 | |
293 | |
274 | /* coro process data */ |
294 | /* coro process data */ |
275 | int prio; |
295 | int prio; |
276 | SV *throw; /* exception to be thrown */ |
296 | SV *except; /* exception to be thrown */ |
|
|
297 | SV *rouse_cb; |
277 | |
298 | |
278 | /* async_pool */ |
299 | /* async_pool */ |
279 | SV *saved_deffh; |
300 | SV *saved_deffh; |
|
|
301 | SV *invoke_cb; |
|
|
302 | AV *invoke_av; |
|
|
303 | |
|
|
304 | /* on_enter/on_leave */ |
|
|
305 | AV *on_enter; |
|
|
306 | AV *on_leave; |
280 | |
307 | |
281 | /* linked list */ |
308 | /* linked list */ |
282 | struct coro *next, *prev; |
309 | struct coro *next, *prev; |
283 | }; |
310 | }; |
284 | |
311 | |
285 | typedef struct coro *Coro__State; |
312 | typedef struct coro *Coro__State; |
286 | typedef struct coro *Coro__State_or_hashref; |
313 | typedef struct coro *Coro__State_or_hashref; |
287 | |
314 | |
|
|
315 | /* the following variables are effectively part of the perl context */ |
|
|
316 | /* and get copied between struct coro and these variables */ |
|
|
317 | /* the mainr easonw e don't support windows process emulation */ |
|
|
318 | static struct CoroSLF slf_frame; /* the current slf frame */ |
|
|
319 | |
288 | /** Coro ********************************************************************/ |
320 | /** Coro ********************************************************************/ |
289 | |
321 | |
290 | #define PRIO_MAX 3 |
322 | #define CORO_PRIO_MAX 3 |
291 | #define PRIO_HIGH 1 |
323 | #define CORO_PRIO_HIGH 1 |
292 | #define PRIO_NORMAL 0 |
324 | #define CORO_PRIO_NORMAL 0 |
293 | #define PRIO_LOW -1 |
325 | #define CORO_PRIO_LOW -1 |
294 | #define PRIO_IDLE -3 |
326 | #define CORO_PRIO_IDLE -3 |
295 | #define PRIO_MIN -4 |
327 | #define CORO_PRIO_MIN -4 |
296 | |
328 | |
297 | /* for Coro.pm */ |
329 | /* for Coro.pm */ |
298 | static SV *coro_current; |
330 | static SV *coro_current; |
299 | static SV *coro_readyhook; |
331 | static SV *coro_readyhook; |
300 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
332 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
301 | static int coro_nready; |
333 | static CV *cv_coro_run, *cv_coro_terminate; |
302 | static struct coro *coro_first; |
334 | static struct coro *coro_first; |
|
|
335 | #define coro_nready coroapi.nready |
303 | |
336 | |
304 | /** lowlevel stuff **********************************************************/ |
337 | /** lowlevel stuff **********************************************************/ |
305 | |
338 | |
306 | static SV * |
339 | static SV * |
307 | coro_get_sv (pTHX_ const char *name, int create) |
340 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
331 | get_hv (name, create); |
364 | get_hv (name, create); |
332 | #endif |
365 | #endif |
333 | return get_hv (name, create); |
366 | return get_hv (name, create); |
334 | } |
367 | } |
335 | |
368 | |
|
|
369 | /* may croak */ |
|
|
370 | INLINE CV * |
|
|
371 | coro_sv_2cv (pTHX_ SV *sv) |
|
|
372 | { |
|
|
373 | HV *st; |
|
|
374 | GV *gvp; |
|
|
375 | CV *cv = sv_2cv (sv, &st, &gvp, 0); |
|
|
376 | |
|
|
377 | if (!cv) |
|
|
378 | croak ("code reference expected"); |
|
|
379 | |
|
|
380 | return cv; |
|
|
381 | } |
|
|
382 | |
|
|
383 | /*****************************************************************************/ |
|
|
384 | /* magic glue */ |
|
|
385 | |
|
|
386 | #define CORO_MAGIC_type_cv 26 |
|
|
387 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
388 | |
|
|
389 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
390 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
391 | ? SvMAGIC (sv) \ |
|
|
392 | : mg_find (sv, type)) |
|
|
393 | |
|
|
394 | #define CORO_MAGIC(sv, type) \ |
|
|
395 | (expect_true (SvMAGIC (sv)) \ |
|
|
396 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
397 | : 0) |
|
|
398 | |
|
|
399 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
400 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
401 | |
|
|
402 | INLINE struct coro * |
|
|
403 | SvSTATE_ (pTHX_ SV *coro) |
|
|
404 | { |
|
|
405 | HV *stash; |
|
|
406 | MAGIC *mg; |
|
|
407 | |
|
|
408 | if (SvROK (coro)) |
|
|
409 | coro = SvRV (coro); |
|
|
410 | |
|
|
411 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
412 | croak ("Coro::State object required"); |
|
|
413 | |
|
|
414 | stash = SvSTASH (coro); |
|
|
415 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
416 | { |
|
|
417 | /* very slow, but rare, check */ |
|
|
418 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
419 | croak ("Coro::State object required"); |
|
|
420 | } |
|
|
421 | |
|
|
422 | mg = CORO_MAGIC_state (coro); |
|
|
423 | return (struct coro *)mg->mg_ptr; |
|
|
424 | } |
|
|
425 | |
|
|
426 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
427 | |
|
|
428 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
429 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
430 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
431 | |
|
|
432 | /*****************************************************************************/ |
|
|
433 | /* padlist management and caching */ |
|
|
434 | |
336 | static AV * |
435 | static AV * |
337 | coro_clone_padlist (pTHX_ CV *cv) |
436 | coro_derive_padlist (pTHX_ CV *cv) |
338 | { |
437 | { |
339 | AV *padlist = CvPADLIST (cv); |
438 | AV *padlist = CvPADLIST (cv); |
340 | AV *newpadlist, *newpad; |
439 | AV *newpadlist, *newpad; |
341 | |
440 | |
342 | newpadlist = newAV (); |
441 | newpadlist = newAV (); |
… | |
… | |
347 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
446 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
348 | #endif |
447 | #endif |
349 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
448 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
350 | --AvFILLp (padlist); |
449 | --AvFILLp (padlist); |
351 | |
450 | |
352 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
451 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
353 | av_store (newpadlist, 1, (SV *)newpad); |
452 | av_store (newpadlist, 1, (SV *)newpad); |
354 | |
453 | |
355 | return newpadlist; |
454 | return newpadlist; |
356 | } |
455 | } |
357 | |
456 | |
358 | static void |
457 | static void |
359 | free_padlist (pTHX_ AV *padlist) |
458 | free_padlist (pTHX_ AV *padlist) |
360 | { |
459 | { |
361 | /* may be during global destruction */ |
460 | /* may be during global destruction */ |
362 | if (SvREFCNT (padlist)) |
461 | if (!IN_DESTRUCT) |
363 | { |
462 | { |
364 | I32 i = AvFILLp (padlist); |
463 | I32 i = AvFILLp (padlist); |
365 | while (i >= 0) |
464 | |
|
|
465 | while (i > 0) /* special-case index 0 */ |
366 | { |
466 | { |
367 | SV **svp = av_fetch (padlist, i--, FALSE); |
467 | /* we try to be extra-careful here */ |
368 | if (svp) |
468 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
369 | { |
469 | I32 j = AvFILLp (av); |
370 | SV *sv; |
470 | |
371 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
471 | while (j >= 0) |
|
|
472 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
473 | |
|
|
474 | AvFILLp (av) = -1; |
372 | SvREFCNT_dec (sv); |
475 | SvREFCNT_dec (av); |
373 | |
|
|
374 | SvREFCNT_dec (*svp); |
|
|
375 | } |
|
|
376 | } |
476 | } |
377 | |
477 | |
|
|
478 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
479 | |
|
|
480 | AvFILLp (padlist) = -1; |
378 | SvREFCNT_dec ((SV*)padlist); |
481 | SvREFCNT_dec ((SV*)padlist); |
379 | } |
482 | } |
380 | } |
483 | } |
381 | |
484 | |
382 | static int |
485 | static int |
383 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
486 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
384 | { |
487 | { |
385 | AV *padlist; |
488 | AV *padlist; |
386 | AV *av = (AV *)mg->mg_obj; |
489 | AV *av = (AV *)mg->mg_obj; |
|
|
490 | |
|
|
491 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
492 | if (IN_DESTRUCT) |
|
|
493 | return; |
387 | |
494 | |
388 | /* casting is fun. */ |
495 | /* casting is fun. */ |
389 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
496 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
390 | free_padlist (aTHX_ padlist); |
497 | free_padlist (aTHX_ padlist); |
391 | |
498 | |
392 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
499 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
393 | |
500 | |
394 | return 0; |
501 | return 0; |
395 | } |
502 | } |
396 | |
|
|
397 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
398 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
399 | |
503 | |
400 | static MGVTBL coro_cv_vtbl = { |
504 | static MGVTBL coro_cv_vtbl = { |
401 | 0, 0, 0, 0, |
505 | 0, 0, 0, 0, |
402 | coro_cv_free |
506 | coro_cv_free |
403 | }; |
507 | }; |
404 | |
|
|
405 | #define CORO_MAGIC(sv, type) \ |
|
|
406 | SvMAGIC (sv) \ |
|
|
407 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
408 | ? SvMAGIC (sv) \ |
|
|
409 | : mg_find (sv, type) \ |
|
|
410 | : 0 |
|
|
411 | |
|
|
412 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
413 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
414 | |
|
|
415 | INLINE struct coro * |
|
|
416 | SvSTATE_ (pTHX_ SV *coro) |
|
|
417 | { |
|
|
418 | HV *stash; |
|
|
419 | MAGIC *mg; |
|
|
420 | |
|
|
421 | if (SvROK (coro)) |
|
|
422 | coro = SvRV (coro); |
|
|
423 | |
|
|
424 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
425 | croak ("Coro::State object required"); |
|
|
426 | |
|
|
427 | stash = SvSTASH (coro); |
|
|
428 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
429 | { |
|
|
430 | /* very slow, but rare, check */ |
|
|
431 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
432 | croak ("Coro::State object required"); |
|
|
433 | } |
|
|
434 | |
|
|
435 | mg = CORO_MAGIC_state (coro); |
|
|
436 | return (struct coro *)mg->mg_ptr; |
|
|
437 | } |
|
|
438 | |
|
|
439 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
440 | |
508 | |
441 | /* the next two functions merely cache the padlists */ |
509 | /* the next two functions merely cache the padlists */ |
442 | static void |
510 | static void |
443 | get_padlist (pTHX_ CV *cv) |
511 | get_padlist (pTHX_ CV *cv) |
444 | { |
512 | { |
… | |
… | |
450 | else |
518 | else |
451 | { |
519 | { |
452 | #if CORO_PREFER_PERL_FUNCTIONS |
520 | #if CORO_PREFER_PERL_FUNCTIONS |
453 | /* this is probably cleaner? but also slower! */ |
521 | /* this is probably cleaner? but also slower! */ |
454 | /* in practise, it seems to be less stable */ |
522 | /* in practise, it seems to be less stable */ |
455 | CV *cp = Perl_cv_clone (cv); |
523 | CV *cp = Perl_cv_clone (aTHX_ cv); |
456 | CvPADLIST (cv) = CvPADLIST (cp); |
524 | CvPADLIST (cv) = CvPADLIST (cp); |
457 | CvPADLIST (cp) = 0; |
525 | CvPADLIST (cp) = 0; |
458 | SvREFCNT_dec (cp); |
526 | SvREFCNT_dec (cp); |
459 | #else |
527 | #else |
460 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
528 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
461 | #endif |
529 | #endif |
462 | } |
530 | } |
463 | } |
531 | } |
464 | |
532 | |
465 | static void |
533 | static void |
… | |
… | |
472 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
540 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
473 | |
541 | |
474 | av = (AV *)mg->mg_obj; |
542 | av = (AV *)mg->mg_obj; |
475 | |
543 | |
476 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
544 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
477 | av_extend (av, AvMAX (av) + 1); |
545 | av_extend (av, AvFILLp (av) + 1); |
478 | |
546 | |
479 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
547 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
480 | } |
548 | } |
481 | |
549 | |
482 | /** load & save, init *******************************************************/ |
550 | /** load & save, init *******************************************************/ |
|
|
551 | |
|
|
552 | static void |
|
|
553 | on_enterleave_call (pTHX_ SV *cb); |
483 | |
554 | |
484 | static void |
555 | static void |
485 | load_perl (pTHX_ Coro__State c) |
556 | load_perl (pTHX_ Coro__State c) |
486 | { |
557 | { |
487 | perl_slots *slot = c->slot; |
558 | perl_slots *slot = c->slot; |
488 | c->slot = 0; |
559 | c->slot = 0; |
489 | |
560 | |
490 | PL_mainstack = c->mainstack; |
561 | PL_mainstack = c->mainstack; |
491 | |
562 | |
492 | GvSV (PL_defgv) = slot->defsv; |
563 | GvSV (PL_defgv) = slot->defsv; |
493 | GvAV (PL_defgv) = slot->defav; |
564 | GvAV (PL_defgv) = slot->defav; |
494 | GvSV (PL_errgv) = slot->errsv; |
565 | GvSV (PL_errgv) = slot->errsv; |
495 | GvSV (irsgv) = slot->irsgv; |
566 | GvSV (irsgv) = slot->irsgv; |
|
|
567 | GvHV (PL_hintgv) = slot->hinthv; |
496 | |
568 | |
497 | #define VAR(name,type) PL_ ## name = slot->name; |
569 | #define VAR(name,type) PL_ ## name = slot->name; |
498 | # include "state.h" |
570 | # include "state.h" |
499 | #undef VAR |
571 | #undef VAR |
500 | |
572 | |
… | |
… | |
511 | CvPADLIST (cv) = (AV *)POPs; |
583 | CvPADLIST (cv) = (AV *)POPs; |
512 | } |
584 | } |
513 | |
585 | |
514 | PUTBACK; |
586 | PUTBACK; |
515 | } |
587 | } |
|
|
588 | |
|
|
589 | slf_frame = c->slf_frame; |
|
|
590 | CORO_THROW = c->except; |
|
|
591 | |
|
|
592 | if (expect_false (c->on_enter)) |
|
|
593 | { |
|
|
594 | int i; |
|
|
595 | |
|
|
596 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
597 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
598 | } |
516 | } |
599 | } |
517 | |
600 | |
518 | static void |
601 | static void |
519 | save_perl (pTHX_ Coro__State c) |
602 | save_perl (pTHX_ Coro__State c) |
520 | { |
603 | { |
|
|
604 | if (expect_false (c->on_leave)) |
|
|
605 | { |
|
|
606 | int i; |
|
|
607 | |
|
|
608 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
609 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
610 | } |
|
|
611 | |
|
|
612 | c->except = CORO_THROW; |
|
|
613 | c->slf_frame = slf_frame; |
|
|
614 | |
521 | { |
615 | { |
522 | dSP; |
616 | dSP; |
523 | I32 cxix = cxstack_ix; |
617 | I32 cxix = cxstack_ix; |
524 | PERL_CONTEXT *ccstk = cxstack; |
618 | PERL_CONTEXT *ccstk = cxstack; |
525 | PERL_SI *top_si = PL_curstackinfo; |
619 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
535 | { |
629 | { |
536 | while (expect_true (cxix >= 0)) |
630 | while (expect_true (cxix >= 0)) |
537 | { |
631 | { |
538 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
632 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
539 | |
633 | |
540 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
634 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
541 | { |
635 | { |
542 | CV *cv = cx->blk_sub.cv; |
636 | CV *cv = cx->blk_sub.cv; |
543 | |
637 | |
544 | if (expect_true (CvDEPTH (cv))) |
638 | if (expect_true (CvDEPTH (cv))) |
545 | { |
639 | { |
… | |
… | |
580 | c->mainstack = PL_mainstack; |
674 | c->mainstack = PL_mainstack; |
581 | |
675 | |
582 | { |
676 | { |
583 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
677 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
584 | |
678 | |
585 | slot->defav = GvAV (PL_defgv); |
679 | slot->defav = GvAV (PL_defgv); |
586 | slot->defsv = DEFSV; |
680 | slot->defsv = DEFSV; |
587 | slot->errsv = ERRSV; |
681 | slot->errsv = ERRSV; |
588 | slot->irsgv = GvSV (irsgv); |
682 | slot->irsgv = GvSV (irsgv); |
|
|
683 | slot->hinthv = GvHV (PL_hintgv); |
589 | |
684 | |
590 | #define VAR(name,type) slot->name = PL_ ## name; |
685 | #define VAR(name,type) slot->name = PL_ ## name; |
591 | # include "state.h" |
686 | # include "state.h" |
592 | #undef VAR |
687 | #undef VAR |
593 | } |
688 | } |
594 | } |
689 | } |
595 | |
690 | |
596 | /* |
691 | /* |
597 | * allocate various perl stacks. This is an exact copy |
692 | * allocate various perl stacks. This is almost an exact copy |
598 | * of perl.c:init_stacks, except that it uses less memory |
693 | * of perl.c:init_stacks, except that it uses less memory |
599 | * on the (sometimes correct) assumption that coroutines do |
694 | * on the (sometimes correct) assumption that coroutines do |
600 | * not usually need a lot of stackspace. |
695 | * not usually need a lot of stackspace. |
601 | */ |
696 | */ |
602 | #if CORO_PREFER_PERL_FUNCTIONS |
697 | #if CORO_PREFER_PERL_FUNCTIONS |
603 | # define coro_init_stacks init_stacks |
698 | # define coro_init_stacks(thx) init_stacks () |
604 | #else |
699 | #else |
605 | static void |
700 | static void |
606 | coro_init_stacks (pTHX) |
701 | coro_init_stacks (pTHX) |
607 | { |
702 | { |
608 | PL_curstackinfo = new_stackinfo(32, 8); |
703 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
671 | #if !PERL_VERSION_ATLEAST (5,10,0) |
766 | #if !PERL_VERSION_ATLEAST (5,10,0) |
672 | Safefree (PL_retstack); |
767 | Safefree (PL_retstack); |
673 | #endif |
768 | #endif |
674 | } |
769 | } |
675 | |
770 | |
|
|
771 | #define CORO_RSS \ |
|
|
772 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
773 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
774 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
775 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
776 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
777 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
778 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
779 | |
676 | static size_t |
780 | static size_t |
677 | coro_rss (pTHX_ struct coro *coro) |
781 | coro_rss (pTHX_ struct coro *coro) |
678 | { |
782 | { |
679 | size_t rss = sizeof (*coro); |
783 | size_t rss = sizeof (*coro); |
680 | |
784 | |
681 | if (coro->mainstack) |
785 | if (coro->mainstack) |
682 | { |
786 | { |
683 | perl_slots tmp_slot; |
|
|
684 | perl_slots *slot; |
|
|
685 | |
|
|
686 | if (coro->flags & CF_RUNNING) |
787 | if (coro->flags & CF_RUNNING) |
687 | { |
788 | { |
688 | slot = &tmp_slot; |
789 | #define SYM(sym) PL_ ## sym |
689 | |
790 | CORO_RSS; |
690 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
691 | # include "state.h" |
|
|
692 | #undef VAR |
791 | #undef SYM |
693 | } |
792 | } |
694 | else |
793 | else |
695 | slot = coro->slot; |
|
|
696 | |
|
|
697 | if (slot) |
|
|
698 | { |
794 | { |
699 | rss += sizeof (slot->curstackinfo); |
795 | #define SYM(sym) coro->slot->sym |
700 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
796 | CORO_RSS; |
701 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
797 | #undef SYM |
702 | rss += slot->tmps_max * sizeof (SV *); |
|
|
703 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
704 | rss += slot->scopestack_max * sizeof (I32); |
|
|
705 | rss += slot->savestack_max * sizeof (ANY); |
|
|
706 | |
|
|
707 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
708 | rss += slot->retstack_max * sizeof (OP *); |
|
|
709 | #endif |
|
|
710 | } |
798 | } |
711 | } |
799 | } |
712 | |
800 | |
713 | return rss; |
801 | return rss; |
714 | } |
|
|
715 | |
|
|
716 | /** set stacklevel support **************************************************/ |
|
|
717 | |
|
|
718 | /* we sometimes need to create the effect of pp_set_stacklevel calling us */ |
|
|
719 | #define SSL_HEAD (void)0 |
|
|
720 | /* we somtimes need to create the effect of leaving via pp_set_stacklevel */ |
|
|
721 | #define SSL_TAIL set_stacklevel_tail (aTHX) |
|
|
722 | |
|
|
723 | INLINE void |
|
|
724 | set_stacklevel_tail (pTHX) |
|
|
725 | { |
|
|
726 | dSP; |
|
|
727 | int gimme = GIMME_V; |
|
|
728 | |
|
|
729 | if (gimme == G_SCALAR) |
|
|
730 | XPUSHs (&PL_sv_undef); |
|
|
731 | |
|
|
732 | PUTBACK; |
|
|
733 | } |
802 | } |
734 | |
803 | |
735 | /** coroutine stack handling ************************************************/ |
804 | /** coroutine stack handling ************************************************/ |
736 | |
805 | |
737 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
806 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
… | |
… | |
746 | #endif |
815 | #endif |
747 | |
816 | |
748 | /* |
817 | /* |
749 | * This overrides the default magic get method of %SIG elements. |
818 | * This overrides the default magic get method of %SIG elements. |
750 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
819 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
751 | * and instead of tryign to save and restore the hash elements, we just provide |
820 | * and instead of trying to save and restore the hash elements, we just provide |
752 | * readback here. |
821 | * readback here. |
753 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
754 | * not expecting this to actually change the hook. This is a potential problem |
|
|
755 | * when a schedule happens then, but we ignore this. |
|
|
756 | */ |
822 | */ |
757 | static int |
823 | static int |
758 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
824 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
759 | { |
825 | { |
760 | const char *s = MgPV_nolen_const (mg); |
826 | const char *s = MgPV_nolen_const (mg); |
… | |
… | |
813 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
879 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
814 | |
880 | |
815 | if (svp) |
881 | if (svp) |
816 | { |
882 | { |
817 | SV *old = *svp; |
883 | SV *old = *svp; |
818 | *svp = newSVsv (sv); |
884 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
819 | SvREFCNT_dec (old); |
885 | SvREFCNT_dec (old); |
820 | return 0; |
886 | return 0; |
821 | } |
887 | } |
822 | } |
888 | } |
823 | |
889 | |
824 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
890 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
825 | } |
891 | } |
826 | |
892 | |
827 | static void |
893 | static void |
|
|
894 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
895 | { |
|
|
896 | /* kind of mega-hacky, but works */ |
|
|
897 | ta->next = ta->prev = (struct coro *)ta; |
|
|
898 | } |
|
|
899 | |
|
|
900 | static int |
|
|
901 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
902 | { |
|
|
903 | return 0; |
|
|
904 | } |
|
|
905 | |
|
|
906 | static int |
|
|
907 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
908 | { |
|
|
909 | return 1; |
|
|
910 | } |
|
|
911 | |
|
|
912 | static UNOP coro_setup_op; |
|
|
913 | |
|
|
914 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
828 | coro_setup (pTHX_ struct coro *coro) |
915 | coro_setup (pTHX_ struct coro *coro) |
829 | { |
916 | { |
830 | /* |
917 | /* |
831 | * emulate part of the perl startup here. |
918 | * emulate part of the perl startup here. |
832 | */ |
919 | */ |
… | |
… | |
834 | |
921 | |
835 | PL_runops = RUNOPS_DEFAULT; |
922 | PL_runops = RUNOPS_DEFAULT; |
836 | PL_curcop = &PL_compiling; |
923 | PL_curcop = &PL_compiling; |
837 | PL_in_eval = EVAL_NULL; |
924 | PL_in_eval = EVAL_NULL; |
838 | PL_comppad = 0; |
925 | PL_comppad = 0; |
|
|
926 | PL_comppad_name = 0; |
|
|
927 | PL_comppad_name_fill = 0; |
|
|
928 | PL_comppad_name_floor = 0; |
839 | PL_curpm = 0; |
929 | PL_curpm = 0; |
840 | PL_curpad = 0; |
930 | PL_curpad = 0; |
841 | PL_localizing = 0; |
931 | PL_localizing = 0; |
842 | PL_dirty = 0; |
932 | PL_dirty = 0; |
843 | PL_restartop = 0; |
933 | PL_restartop = 0; |
844 | #if PERL_VERSION_ATLEAST (5,10,0) |
934 | #if PERL_VERSION_ATLEAST (5,10,0) |
845 | PL_parser = 0; |
935 | PL_parser = 0; |
846 | #endif |
936 | #endif |
|
|
937 | PL_hints = 0; |
847 | |
938 | |
848 | /* recreate the die/warn hooks */ |
939 | /* recreate the die/warn hooks */ |
849 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
940 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
850 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
941 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
851 | |
942 | |
852 | GvSV (PL_defgv) = newSV (0); |
943 | GvSV (PL_defgv) = newSV (0); |
853 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
944 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
854 | GvSV (PL_errgv) = newSV (0); |
945 | GvSV (PL_errgv) = newSV (0); |
855 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
946 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
947 | GvHV (PL_hintgv) = 0; |
856 | PL_rs = newSVsv (GvSV (irsgv)); |
948 | PL_rs = newSVsv (GvSV (irsgv)); |
857 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
949 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
858 | |
950 | |
859 | { |
951 | { |
860 | dSP; |
952 | dSP; |
861 | UNOP myop; |
953 | UNOP myop; |
862 | |
954 | |
863 | Zero (&myop, 1, UNOP); |
955 | Zero (&myop, 1, UNOP); |
864 | myop.op_next = Nullop; |
956 | myop.op_next = Nullop; |
|
|
957 | myop.op_type = OP_ENTERSUB; |
865 | myop.op_flags = OPf_WANT_VOID; |
958 | myop.op_flags = OPf_WANT_VOID; |
866 | |
959 | |
867 | PUSHMARK (SP); |
960 | PUSHMARK (SP); |
868 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
961 | PUSHs ((SV *)coro->startcv); |
869 | PUTBACK; |
962 | PUTBACK; |
870 | PL_op = (OP *)&myop; |
963 | PL_op = (OP *)&myop; |
871 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
964 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
872 | SPAGAIN; |
|
|
873 | } |
965 | } |
874 | |
966 | |
875 | /* this newly created coroutine might be run on an existing cctx which most |
967 | /* this newly created coroutine might be run on an existing cctx which most |
876 | * likely was suspended in set_stacklevel, called from pp_set_stacklevel, |
968 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
877 | * so we have to emulate entering pp_set_stacklevel here. |
|
|
878 | */ |
969 | */ |
879 | SSL_HEAD; |
970 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
880 | } |
971 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
881 | |
972 | |
|
|
973 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
974 | coro_setup_op.op_next = PL_op; |
|
|
975 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
976 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
977 | /* no flags etc. required, as an init function won't be called */ |
|
|
978 | |
|
|
979 | PL_op = (OP *)&coro_setup_op; |
|
|
980 | |
|
|
981 | /* copy throw, in case it was set before coro_setup */ |
|
|
982 | CORO_THROW = coro->except; |
|
|
983 | } |
|
|
984 | |
882 | static void |
985 | static void |
883 | coro_destruct (pTHX_ struct coro *coro) |
986 | coro_unwind_stacks (pTHX) |
884 | { |
987 | { |
885 | if (!IN_DESTRUCT) |
988 | if (!IN_DESTRUCT) |
886 | { |
989 | { |
887 | /* restore all saved variables and stuff */ |
990 | /* restore all saved variables and stuff */ |
888 | LEAVE_SCOPE (0); |
991 | LEAVE_SCOPE (0); |
… | |
… | |
896 | POPSTACK_TO (PL_mainstack); |
999 | POPSTACK_TO (PL_mainstack); |
897 | |
1000 | |
898 | /* unwind main stack */ |
1001 | /* unwind main stack */ |
899 | dounwind (-1); |
1002 | dounwind (-1); |
900 | } |
1003 | } |
|
|
1004 | } |
901 | |
1005 | |
902 | SvREFCNT_dec (GvSV (PL_defgv)); |
1006 | static void |
903 | SvREFCNT_dec (GvAV (PL_defgv)); |
1007 | coro_destruct_perl (pTHX_ struct coro *coro) |
904 | SvREFCNT_dec (GvSV (PL_errgv)); |
1008 | { |
905 | SvREFCNT_dec (PL_defoutgv); |
1009 | SV *svf [9]; |
906 | SvREFCNT_dec (PL_rs); |
|
|
907 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
908 | |
1010 | |
909 | SvREFCNT_dec (PL_diehook); |
|
|
910 | SvREFCNT_dec (PL_warnhook); |
|
|
911 | |
1011 | { |
|
|
1012 | struct coro *current = SvSTATE_current; |
|
|
1013 | |
|
|
1014 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1015 | |
|
|
1016 | save_perl (aTHX_ current); |
|
|
1017 | load_perl (aTHX_ coro); |
|
|
1018 | |
|
|
1019 | coro_unwind_stacks (aTHX); |
|
|
1020 | coro_destruct_stacks (aTHX); |
|
|
1021 | |
|
|
1022 | // now save some sv's to be free'd later |
|
|
1023 | svf [0] = GvSV (PL_defgv); |
|
|
1024 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1025 | svf [2] = GvSV (PL_errgv); |
|
|
1026 | svf [3] = (SV *)PL_defoutgv; |
|
|
1027 | svf [4] = PL_rs; |
|
|
1028 | svf [5] = GvSV (irsgv); |
|
|
1029 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1030 | svf [7] = PL_diehook; |
|
|
1031 | svf [8] = PL_warnhook; |
|
|
1032 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1033 | |
|
|
1034 | load_perl (aTHX_ current); |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | { |
|
|
1038 | int i; |
|
|
1039 | |
|
|
1040 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1041 | SvREFCNT_dec (svf [i]); |
|
|
1042 | |
912 | SvREFCNT_dec (coro->saved_deffh); |
1043 | SvREFCNT_dec (coro->saved_deffh); |
913 | SvREFCNT_dec (coro->throw); |
1044 | SvREFCNT_dec (coro->rouse_cb); |
914 | |
1045 | SvREFCNT_dec (coro->invoke_cb); |
915 | coro_destruct_stacks (aTHX); |
1046 | SvREFCNT_dec (coro->invoke_av); |
|
|
1047 | } |
916 | } |
1048 | } |
917 | |
1049 | |
918 | INLINE void |
1050 | INLINE void |
919 | free_coro_mortal (pTHX) |
1051 | free_coro_mortal (pTHX) |
920 | { |
1052 | { |
… | |
… | |
928 | static int |
1060 | static int |
929 | runops_trace (pTHX) |
1061 | runops_trace (pTHX) |
930 | { |
1062 | { |
931 | COP *oldcop = 0; |
1063 | COP *oldcop = 0; |
932 | int oldcxix = -2; |
1064 | int oldcxix = -2; |
933 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
934 | coro_cctx *cctx = coro->cctx; |
|
|
935 | |
1065 | |
936 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1066 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
937 | { |
1067 | { |
938 | PERL_ASYNC_CHECK (); |
1068 | PERL_ASYNC_CHECK (); |
939 | |
1069 | |
940 | if (cctx->flags & CC_TRACE_ALL) |
1070 | if (cctx_current->flags & CC_TRACE_ALL) |
941 | { |
1071 | { |
942 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1072 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
943 | { |
1073 | { |
944 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1074 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
945 | SV **bot, **top; |
1075 | SV **bot, **top; |
946 | AV *av = newAV (); /* return values */ |
1076 | AV *av = newAV (); /* return values */ |
947 | SV **cb; |
1077 | SV **cb; |
… | |
… | |
984 | |
1114 | |
985 | if (PL_curcop != &PL_compiling) |
1115 | if (PL_curcop != &PL_compiling) |
986 | { |
1116 | { |
987 | SV **cb; |
1117 | SV **cb; |
988 | |
1118 | |
989 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1119 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
990 | { |
1120 | { |
991 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1121 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
992 | |
1122 | |
993 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1123 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
994 | { |
1124 | { |
995 | runops_proc_t old_runops = PL_runops; |
|
|
996 | dSP; |
1125 | dSP; |
997 | GV *gv = CvGV (cx->blk_sub.cv); |
1126 | GV *gv = CvGV (cx->blk_sub.cv); |
998 | SV *fullname = sv_2mortal (newSV (0)); |
1127 | SV *fullname = sv_2mortal (newSV (0)); |
999 | |
1128 | |
1000 | if (isGV (gv)) |
1129 | if (isGV (gv)) |
… | |
… | |
1005 | SAVETMPS; |
1134 | SAVETMPS; |
1006 | EXTEND (SP, 3); |
1135 | EXTEND (SP, 3); |
1007 | PUSHMARK (SP); |
1136 | PUSHMARK (SP); |
1008 | PUSHs (&PL_sv_yes); |
1137 | PUSHs (&PL_sv_yes); |
1009 | PUSHs (fullname); |
1138 | PUSHs (fullname); |
1010 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1139 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1011 | PUTBACK; |
1140 | PUTBACK; |
1012 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1141 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1013 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1142 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1014 | SPAGAIN; |
1143 | SPAGAIN; |
1015 | FREETMPS; |
1144 | FREETMPS; |
… | |
… | |
1018 | } |
1147 | } |
1019 | |
1148 | |
1020 | oldcxix = cxstack_ix; |
1149 | oldcxix = cxstack_ix; |
1021 | } |
1150 | } |
1022 | |
1151 | |
1023 | if (cctx->flags & CC_TRACE_LINE) |
1152 | if (cctx_current->flags & CC_TRACE_LINE) |
1024 | { |
1153 | { |
1025 | dSP; |
1154 | dSP; |
1026 | |
1155 | |
1027 | PL_runops = RUNOPS_DEFAULT; |
1156 | PL_runops = RUNOPS_DEFAULT; |
1028 | ENTER; |
1157 | ENTER; |
… | |
… | |
1047 | |
1176 | |
1048 | TAINT_NOT; |
1177 | TAINT_NOT; |
1049 | return 0; |
1178 | return 0; |
1050 | } |
1179 | } |
1051 | |
1180 | |
|
|
1181 | static struct CoroSLF cctx_ssl_frame; |
|
|
1182 | |
1052 | static void |
1183 | static void |
1053 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1184 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1054 | { |
1185 | { |
1055 | ta->prev = (struct coro *)cctx; |
|
|
1056 | ta->next = 0; |
1186 | ta->prev = 0; |
1057 | } |
1187 | } |
1058 | |
1188 | |
1059 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1189 | static int |
1060 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1190 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1061 | /* during execution of a perl program */ |
1191 | { |
1062 | /* also initialises PL_top_env */ |
1192 | *frame = cctx_ssl_frame; |
|
|
1193 | |
|
|
1194 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1063 | static void NOINLINE |
1198 | static void NOINLINE |
1064 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1199 | cctx_prepare (pTHX) |
1065 | { |
1200 | { |
1066 | dSP; |
|
|
1067 | UNOP myop; |
|
|
1068 | |
|
|
1069 | PL_top_env = &PL_start_env; |
1201 | PL_top_env = &PL_start_env; |
1070 | |
1202 | |
1071 | if (cctx->flags & CC_TRACE) |
1203 | if (cctx_current->flags & CC_TRACE) |
1072 | PL_runops = runops_trace; |
1204 | PL_runops = runops_trace; |
1073 | |
1205 | |
1074 | Zero (&myop, 1, UNOP); |
1206 | /* we already must be executing an SLF op, there is no other valid way |
1075 | myop.op_next = PL_op; |
1207 | * that can lead to creation of a new cctx */ |
1076 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1208 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1209 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1077 | |
1210 | |
1078 | PUSHMARK (SP); |
1211 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1079 | EXTEND (SP, 2); |
1212 | cctx_ssl_frame = slf_frame; |
1080 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1213 | |
1081 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1214 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1082 | PUTBACK; |
1215 | slf_frame.check = slf_check_set_stacklevel; |
1083 | PL_op = (OP *)&myop; |
|
|
1084 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1085 | SPAGAIN; |
|
|
1086 | } |
1216 | } |
1087 | |
1217 | |
1088 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1218 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1089 | INLINE void |
1219 | INLINE void |
1090 | transfer_tail (pTHX) |
1220 | transfer_tail (pTHX) |
1091 | { |
1221 | { |
1092 | struct coro *next = (struct coro *)transfer_next; |
|
|
1093 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1094 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1095 | |
|
|
1096 | free_coro_mortal (aTHX); |
1222 | free_coro_mortal (aTHX); |
1097 | UNLOCK; |
|
|
1098 | |
|
|
1099 | if (expect_false (next->throw)) |
|
|
1100 | { |
|
|
1101 | SV *exception = sv_2mortal (next->throw); |
|
|
1102 | |
|
|
1103 | next->throw = 0; |
|
|
1104 | sv_setsv (ERRSV, exception); |
|
|
1105 | croak (0); |
|
|
1106 | } |
|
|
1107 | } |
1223 | } |
1108 | |
1224 | |
1109 | /* |
1225 | /* |
1110 | * this is a _very_ stripped down perl interpreter ;) |
1226 | * this is a _very_ stripped down perl interpreter ;) |
1111 | */ |
1227 | */ |
… | |
… | |
1118 | # endif |
1234 | # endif |
1119 | #endif |
1235 | #endif |
1120 | { |
1236 | { |
1121 | dTHX; |
1237 | dTHX; |
1122 | |
1238 | |
1123 | /* we are the alternative tail to pp_set_stacklevel */ |
1239 | /* normally we would need to skip the entersub here */ |
1124 | /* so do the same things here */ |
1240 | /* not doing so will re-execute it, which is exactly what we want */ |
1125 | SSL_TAIL; |
|
|
1126 | |
|
|
1127 | /* we now skip the op that did lead to transfer() */ |
|
|
1128 | PL_op = PL_op->op_next; |
1241 | /* PL_nop = PL_nop->op_next */ |
1129 | |
1242 | |
1130 | /* inject a fake subroutine call to cctx_init */ |
1243 | /* inject a fake subroutine call to cctx_init */ |
1131 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1244 | cctx_prepare (aTHX); |
1132 | |
1245 | |
1133 | /* cctx_run is the alternative tail of transfer() */ |
1246 | /* cctx_run is the alternative tail of transfer() */ |
1134 | transfer_tail (aTHX); |
1247 | transfer_tail (aTHX); |
1135 | |
1248 | |
1136 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1249 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1137 | PL_restartop = PL_op; |
1250 | PL_restartop = PL_op; |
1138 | perl_run (PL_curinterp); |
1251 | perl_run (PL_curinterp); |
|
|
1252 | /* |
|
|
1253 | * Unfortunately, there is no way to get at the return values of the |
|
|
1254 | * coro body here, as perl_run destroys these |
|
|
1255 | */ |
1139 | |
1256 | |
1140 | /* |
1257 | /* |
1141 | * If perl-run returns we assume exit() was being called or the coro |
1258 | * If perl-run returns we assume exit() was being called or the coro |
1142 | * fell off the end, which seems to be the only valid (non-bug) |
1259 | * fell off the end, which seems to be the only valid (non-bug) |
1143 | * reason for perl_run to return. We try to exit by jumping to the |
1260 | * reason for perl_run to return. We try to exit by jumping to the |
1144 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1261 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1145 | * coroutine as Coro has no such concept |
1262 | * coroutine as Coro has no such concept. |
|
|
1263 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1264 | * that backend are too broken to do it in a standards-compliant way. |
1146 | */ |
1265 | */ |
1147 | PL_top_env = main_top_env; |
1266 | PL_top_env = main_top_env; |
1148 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1267 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1149 | } |
1268 | } |
1150 | } |
1269 | } |
… | |
… | |
1227 | cctx_destroy (coro_cctx *cctx) |
1346 | cctx_destroy (coro_cctx *cctx) |
1228 | { |
1347 | { |
1229 | if (!cctx) |
1348 | if (!cctx) |
1230 | return; |
1349 | return; |
1231 | |
1350 | |
|
|
1351 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
|
|
1352 | |
1232 | --cctx_count; |
1353 | --cctx_count; |
1233 | coro_destroy (&cctx->cctx); |
1354 | coro_destroy (&cctx->cctx); |
1234 | |
1355 | |
1235 | /* coro_transfer creates new, empty cctx's */ |
1356 | /* coro_transfer creates new, empty cctx's */ |
1236 | if (cctx->sptr) |
1357 | if (cctx->sptr) |
… | |
… | |
1294 | /** coroutine switching *****************************************************/ |
1415 | /** coroutine switching *****************************************************/ |
1295 | |
1416 | |
1296 | static void |
1417 | static void |
1297 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1418 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1298 | { |
1419 | { |
|
|
1420 | /* TODO: throwing up here is considered harmful */ |
|
|
1421 | |
1299 | if (expect_true (prev != next)) |
1422 | if (expect_true (prev != next)) |
1300 | { |
1423 | { |
1301 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1424 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1302 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1425 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1303 | |
1426 | |
1304 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1305 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1306 | |
|
|
1307 | if (expect_false (next->flags & CF_DESTROYED)) |
1427 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1308 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1428 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1309 | |
1429 | |
1310 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1430 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1311 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1431 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1312 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1432 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1313 | #endif |
1433 | #endif |
1314 | } |
1434 | } |
1315 | } |
1435 | } |
1316 | |
1436 | |
1317 | /* always use the TRANSFER macro */ |
1437 | /* always use the TRANSFER macro */ |
1318 | static void NOINLINE |
1438 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1319 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1439 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1320 | { |
1440 | { |
1321 | dSTACKLEVEL; |
1441 | dSTACKLEVEL; |
1322 | |
1442 | |
1323 | /* sometimes transfer is only called to set idle_sp */ |
1443 | /* sometimes transfer is only called to set idle_sp */ |
1324 | if (expect_false (!next)) |
1444 | if (expect_false (!prev)) |
1325 | { |
1445 | { |
1326 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1446 | cctx_current->idle_sp = STACKLEVEL; |
1327 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1447 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1328 | } |
1448 | } |
1329 | else if (expect_true (prev != next)) |
1449 | else if (expect_true (prev != next)) |
1330 | { |
1450 | { |
1331 | coro_cctx *prev__cctx; |
1451 | coro_cctx *cctx_prev; |
1332 | |
1452 | |
1333 | if (expect_false (prev->flags & CF_NEW)) |
1453 | if (expect_false (prev->flags & CF_NEW)) |
1334 | { |
1454 | { |
1335 | /* create a new empty/source context */ |
1455 | /* create a new empty/source context */ |
1336 | prev->cctx = cctx_new_empty (); |
|
|
1337 | prev->flags &= ~CF_NEW; |
1456 | prev->flags &= ~CF_NEW; |
1338 | prev->flags |= CF_RUNNING; |
1457 | prev->flags |= CF_RUNNING; |
1339 | } |
1458 | } |
1340 | |
1459 | |
1341 | prev->flags &= ~CF_RUNNING; |
1460 | prev->flags &= ~CF_RUNNING; |
1342 | next->flags |= CF_RUNNING; |
1461 | next->flags |= CF_RUNNING; |
1343 | |
|
|
1344 | LOCK; |
|
|
1345 | |
1462 | |
1346 | /* first get rid of the old state */ |
1463 | /* first get rid of the old state */ |
1347 | save_perl (aTHX_ prev); |
1464 | save_perl (aTHX_ prev); |
1348 | |
1465 | |
1349 | if (expect_false (next->flags & CF_NEW)) |
1466 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1354 | coro_setup (aTHX_ next); |
1471 | coro_setup (aTHX_ next); |
1355 | } |
1472 | } |
1356 | else |
1473 | else |
1357 | load_perl (aTHX_ next); |
1474 | load_perl (aTHX_ next); |
1358 | |
1475 | |
1359 | prev__cctx = prev->cctx; |
|
|
1360 | |
|
|
1361 | /* possibly untie and reuse the cctx */ |
1476 | /* possibly untie and reuse the cctx */ |
1362 | if (expect_true ( |
1477 | if (expect_true ( |
1363 | prev__cctx->idle_sp == STACKLEVEL |
1478 | cctx_current->idle_sp == STACKLEVEL |
1364 | && !(prev__cctx->flags & CC_TRACE) |
1479 | && !(cctx_current->flags & CC_TRACE) |
1365 | && !force_cctx |
1480 | && !force_cctx |
1366 | )) |
1481 | )) |
1367 | { |
1482 | { |
1368 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1483 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1369 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1484 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1370 | |
1485 | |
1371 | prev->cctx = 0; |
|
|
1372 | |
|
|
1373 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1486 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1374 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1487 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1375 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1488 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1376 | if (!next->cctx) |
1489 | if (expect_true (!next->cctx)) |
1377 | next->cctx = cctx_get (aTHX); |
1490 | next->cctx = cctx_get (aTHX); |
1378 | |
1491 | |
1379 | cctx_put (prev__cctx); |
1492 | cctx_put (cctx_current); |
1380 | } |
1493 | } |
|
|
1494 | else |
|
|
1495 | prev->cctx = cctx_current; |
1381 | |
1496 | |
1382 | ++next->usecount; |
1497 | ++next->usecount; |
1383 | |
1498 | |
1384 | if (expect_true (!next->cctx)) |
1499 | cctx_prev = cctx_current; |
1385 | next->cctx = cctx_get (aTHX); |
1500 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1386 | |
1501 | |
1387 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
1502 | next->cctx = 0; |
1388 | transfer_next = next; |
|
|
1389 | |
1503 | |
1390 | if (expect_false (prev__cctx != next->cctx)) |
1504 | if (expect_false (cctx_prev != cctx_current)) |
1391 | { |
1505 | { |
1392 | prev__cctx->top_env = PL_top_env; |
1506 | cctx_prev->top_env = PL_top_env; |
1393 | PL_top_env = next->cctx->top_env; |
1507 | PL_top_env = cctx_current->top_env; |
1394 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1508 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1395 | } |
1509 | } |
1396 | |
1510 | |
1397 | transfer_tail (aTHX); |
1511 | transfer_tail (aTHX); |
1398 | } |
1512 | } |
1399 | } |
1513 | } |
… | |
… | |
1406 | static int |
1520 | static int |
1407 | coro_state_destroy (pTHX_ struct coro *coro) |
1521 | coro_state_destroy (pTHX_ struct coro *coro) |
1408 | { |
1522 | { |
1409 | if (coro->flags & CF_DESTROYED) |
1523 | if (coro->flags & CF_DESTROYED) |
1410 | return 0; |
1524 | return 0; |
|
|
1525 | |
|
|
1526 | if (coro->on_destroy && !PL_dirty) |
|
|
1527 | coro->on_destroy (aTHX_ coro); |
1411 | |
1528 | |
1412 | coro->flags |= CF_DESTROYED; |
1529 | coro->flags |= CF_DESTROYED; |
1413 | |
1530 | |
1414 | if (coro->flags & CF_READY) |
1531 | if (coro->flags & CF_READY) |
1415 | { |
1532 | { |
1416 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1533 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1417 | /* alternative: look through all ready queues and remove the coro */ |
1534 | /* alternative: look through all ready queues and remove the coro */ |
1418 | LOCK; |
|
|
1419 | --coro_nready; |
1535 | --coro_nready; |
1420 | UNLOCK; |
|
|
1421 | } |
1536 | } |
1422 | else |
1537 | else |
1423 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1538 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1424 | |
1539 | |
1425 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1540 | if (coro->mainstack |
1426 | { |
1541 | && coro->mainstack != main_mainstack |
1427 | struct coro temp; |
1542 | && coro->slot |
1428 | |
1543 | && !PL_dirty) |
1429 | if (coro->flags & CF_RUNNING) |
|
|
1430 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1431 | |
|
|
1432 | save_perl (aTHX_ &temp); |
|
|
1433 | load_perl (aTHX_ coro); |
|
|
1434 | |
|
|
1435 | coro_destruct (aTHX_ coro); |
1544 | coro_destruct_perl (aTHX_ coro); |
1436 | |
|
|
1437 | load_perl (aTHX_ &temp); |
|
|
1438 | |
|
|
1439 | coro->slot = 0; |
|
|
1440 | } |
|
|
1441 | |
1545 | |
1442 | cctx_destroy (coro->cctx); |
1546 | cctx_destroy (coro->cctx); |
|
|
1547 | SvREFCNT_dec (coro->startcv); |
1443 | SvREFCNT_dec (coro->args); |
1548 | SvREFCNT_dec (coro->args); |
|
|
1549 | SvREFCNT_dec (CORO_THROW); |
1444 | |
1550 | |
1445 | if (coro->next) coro->next->prev = coro->prev; |
1551 | if (coro->next) coro->next->prev = coro->prev; |
1446 | if (coro->prev) coro->prev->next = coro->next; |
1552 | if (coro->prev) coro->prev->next = coro->next; |
1447 | if (coro == coro_first) coro_first = coro->next; |
1553 | if (coro == coro_first) coro_first = coro->next; |
1448 | |
1554 | |
… | |
… | |
1486 | # define MGf_DUP 0 |
1592 | # define MGf_DUP 0 |
1487 | #endif |
1593 | #endif |
1488 | }; |
1594 | }; |
1489 | |
1595 | |
1490 | static void |
1596 | static void |
1491 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1597 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1492 | { |
1598 | { |
1493 | ta->prev = SvSTATE (prev_sv); |
1599 | ta->prev = SvSTATE (prev_sv); |
1494 | ta->next = SvSTATE (next_sv); |
1600 | ta->next = SvSTATE (next_sv); |
1495 | TRANSFER_CHECK (*ta); |
1601 | TRANSFER_CHECK (*ta); |
1496 | } |
1602 | } |
1497 | |
1603 | |
1498 | static void |
1604 | static void |
1499 | api_transfer (SV *prev_sv, SV *next_sv) |
1605 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1500 | { |
1606 | { |
1501 | dTHX; |
|
|
1502 | struct transfer_args ta; |
1607 | struct coro_transfer_args ta; |
1503 | |
1608 | |
1504 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1609 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1505 | TRANSFER (ta, 1); |
1610 | TRANSFER (ta, 1); |
1506 | } |
1611 | } |
1507 | |
1612 | |
|
|
1613 | /*****************************************************************************/ |
|
|
1614 | /* gensub: simple closure generation utility */ |
|
|
1615 | |
|
|
1616 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1617 | |
|
|
1618 | /* create a closure from XS, returns a code reference */ |
|
|
1619 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1620 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1621 | static SV * |
|
|
1622 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1623 | { |
|
|
1624 | CV *cv = (CV *)newSV (0); |
|
|
1625 | |
|
|
1626 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1627 | |
|
|
1628 | CvANON_on (cv); |
|
|
1629 | CvISXSUB_on (cv); |
|
|
1630 | CvXSUB (cv) = xsub; |
|
|
1631 | GENSUB_ARG = arg; |
|
|
1632 | |
|
|
1633 | return newRV_noinc ((SV *)cv); |
|
|
1634 | } |
|
|
1635 | |
1508 | /** Coro ********************************************************************/ |
1636 | /** Coro ********************************************************************/ |
1509 | |
1637 | |
1510 | static void |
1638 | INLINE void |
1511 | coro_enq (pTHX_ SV *coro_sv) |
1639 | coro_enq (pTHX_ struct coro *coro) |
1512 | { |
1640 | { |
1513 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1641 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1514 | } |
|
|
1515 | |
1642 | |
1516 | static SV * |
1643 | SvREFCNT_inc_NN (coro->hv); |
|
|
1644 | |
|
|
1645 | coro->next_ready = 0; |
|
|
1646 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1647 | ready [1] = coro; |
|
|
1648 | } |
|
|
1649 | |
|
|
1650 | INLINE struct coro * |
1517 | coro_deq (pTHX) |
1651 | coro_deq (pTHX) |
1518 | { |
1652 | { |
1519 | int prio; |
1653 | int prio; |
1520 | |
1654 | |
1521 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1655 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1522 | if (AvFILLp (coro_ready [prio]) >= 0) |
1656 | { |
1523 | return av_shift (coro_ready [prio]); |
1657 | struct coro **ready = coro_ready [prio]; |
|
|
1658 | |
|
|
1659 | if (ready [0]) |
|
|
1660 | { |
|
|
1661 | struct coro *coro = ready [0]; |
|
|
1662 | ready [0] = coro->next_ready; |
|
|
1663 | return coro; |
|
|
1664 | } |
|
|
1665 | } |
1524 | |
1666 | |
1525 | return 0; |
1667 | return 0; |
1526 | } |
1668 | } |
1527 | |
1669 | |
1528 | static int |
1670 | static int |
1529 | api_ready (SV *coro_sv) |
1671 | api_ready (pTHX_ SV *coro_sv) |
1530 | { |
1672 | { |
1531 | dTHX; |
|
|
1532 | struct coro *coro; |
1673 | struct coro *coro; |
1533 | SV *sv_hook; |
1674 | SV *sv_hook; |
1534 | void (*xs_hook)(void); |
1675 | void (*xs_hook)(void); |
1535 | |
1676 | |
1536 | if (SvROK (coro_sv)) |
|
|
1537 | coro_sv = SvRV (coro_sv); |
|
|
1538 | |
|
|
1539 | coro = SvSTATE (coro_sv); |
1677 | coro = SvSTATE (coro_sv); |
1540 | |
1678 | |
1541 | if (coro->flags & CF_READY) |
1679 | if (coro->flags & CF_READY) |
1542 | return 0; |
1680 | return 0; |
1543 | |
1681 | |
1544 | coro->flags |= CF_READY; |
1682 | coro->flags |= CF_READY; |
1545 | |
1683 | |
1546 | LOCK; |
|
|
1547 | |
|
|
1548 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1684 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1549 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1685 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1550 | |
1686 | |
1551 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1687 | coro_enq (aTHX_ coro); |
1552 | ++coro_nready; |
1688 | ++coro_nready; |
1553 | |
1689 | |
1554 | UNLOCK; |
|
|
1555 | |
|
|
1556 | if (sv_hook) |
1690 | if (sv_hook) |
1557 | { |
1691 | { |
1558 | dSP; |
1692 | dSP; |
1559 | |
1693 | |
1560 | ENTER; |
1694 | ENTER; |
1561 | SAVETMPS; |
1695 | SAVETMPS; |
1562 | |
1696 | |
1563 | PUSHMARK (SP); |
1697 | PUSHMARK (SP); |
1564 | PUTBACK; |
1698 | PUTBACK; |
1565 | call_sv (sv_hook, G_DISCARD); |
1699 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1566 | SPAGAIN; |
|
|
1567 | |
1700 | |
1568 | FREETMPS; |
1701 | FREETMPS; |
1569 | LEAVE; |
1702 | LEAVE; |
1570 | } |
1703 | } |
1571 | |
1704 | |
… | |
… | |
1574 | |
1707 | |
1575 | return 1; |
1708 | return 1; |
1576 | } |
1709 | } |
1577 | |
1710 | |
1578 | static int |
1711 | static int |
1579 | api_is_ready (SV *coro_sv) |
1712 | api_is_ready (pTHX_ SV *coro_sv) |
1580 | { |
1713 | { |
1581 | dTHX; |
|
|
1582 | |
|
|
1583 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1714 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1584 | } |
1715 | } |
1585 | |
1716 | |
|
|
1717 | /* expects to own a reference to next->hv */ |
1586 | INLINE void |
1718 | INLINE void |
1587 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1719 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1588 | { |
1720 | { |
1589 | SV *prev_sv, *next_sv; |
|
|
1590 | |
|
|
1591 | for (;;) |
|
|
1592 | { |
|
|
1593 | LOCK; |
|
|
1594 | next_sv = coro_deq (aTHX); |
|
|
1595 | |
|
|
1596 | /* nothing to schedule: call the idle handler */ |
|
|
1597 | if (expect_false (!next_sv)) |
|
|
1598 | { |
|
|
1599 | dSP; |
|
|
1600 | UNLOCK; |
|
|
1601 | |
|
|
1602 | ENTER; |
|
|
1603 | SAVETMPS; |
|
|
1604 | |
|
|
1605 | PUSHMARK (SP); |
|
|
1606 | PUTBACK; |
|
|
1607 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1608 | SPAGAIN; |
|
|
1609 | |
|
|
1610 | FREETMPS; |
|
|
1611 | LEAVE; |
|
|
1612 | continue; |
|
|
1613 | } |
|
|
1614 | |
|
|
1615 | ta->next = SvSTATE (next_sv); |
|
|
1616 | |
|
|
1617 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1618 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1619 | { |
|
|
1620 | UNLOCK; |
|
|
1621 | SvREFCNT_dec (next_sv); |
|
|
1622 | /* coro_nready has already been taken care of by destroy */ |
|
|
1623 | continue; |
|
|
1624 | } |
|
|
1625 | |
|
|
1626 | --coro_nready; |
|
|
1627 | UNLOCK; |
|
|
1628 | break; |
|
|
1629 | } |
|
|
1630 | |
|
|
1631 | /* free this only after the transfer */ |
|
|
1632 | prev_sv = SvRV (coro_current); |
1721 | SV *prev_sv = SvRV (coro_current); |
|
|
1722 | |
1633 | ta->prev = SvSTATE (prev_sv); |
1723 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1724 | ta->next = next; |
|
|
1725 | |
1634 | TRANSFER_CHECK (*ta); |
1726 | TRANSFER_CHECK (*ta); |
1635 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1727 | |
1636 | ta->next->flags &= ~CF_READY; |
|
|
1637 | SvRV_set (coro_current, next_sv); |
1728 | SvRV_set (coro_current, (SV *)next->hv); |
1638 | |
1729 | |
1639 | LOCK; |
|
|
1640 | free_coro_mortal (aTHX); |
1730 | free_coro_mortal (aTHX); |
1641 | coro_mortal = prev_sv; |
1731 | coro_mortal = prev_sv; |
1642 | UNLOCK; |
1732 | } |
|
|
1733 | |
|
|
1734 | static void |
|
|
1735 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1736 | { |
|
|
1737 | for (;;) |
|
|
1738 | { |
|
|
1739 | struct coro *next = coro_deq (aTHX); |
|
|
1740 | |
|
|
1741 | if (expect_true (next)) |
|
|
1742 | { |
|
|
1743 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1744 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
|
|
1745 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1746 | else |
|
|
1747 | { |
|
|
1748 | next->flags &= ~CF_READY; |
|
|
1749 | --coro_nready; |
|
|
1750 | |
|
|
1751 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1752 | break; |
|
|
1753 | } |
|
|
1754 | } |
|
|
1755 | else |
|
|
1756 | { |
|
|
1757 | /* nothing to schedule: call the idle handler */ |
|
|
1758 | if (SvROK (sv_idle) |
|
|
1759 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1760 | { |
|
|
1761 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1762 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1763 | --coro_nready; |
|
|
1764 | } |
|
|
1765 | else |
|
|
1766 | { |
|
|
1767 | dSP; |
|
|
1768 | |
|
|
1769 | ENTER; |
|
|
1770 | SAVETMPS; |
|
|
1771 | |
|
|
1772 | PUSHMARK (SP); |
|
|
1773 | PUTBACK; |
|
|
1774 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1775 | |
|
|
1776 | FREETMPS; |
|
|
1777 | LEAVE; |
|
|
1778 | } |
|
|
1779 | } |
|
|
1780 | } |
1643 | } |
1781 | } |
1644 | |
1782 | |
1645 | INLINE void |
1783 | INLINE void |
1646 | prepare_cede (pTHX_ struct transfer_args *ta) |
1784 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1647 | { |
1785 | { |
1648 | api_ready (coro_current); |
1786 | api_ready (aTHX_ coro_current); |
1649 | prepare_schedule (aTHX_ ta); |
1787 | prepare_schedule (aTHX_ ta); |
1650 | } |
1788 | } |
1651 | |
1789 | |
|
|
1790 | INLINE void |
|
|
1791 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1792 | { |
|
|
1793 | SV *prev = SvRV (coro_current); |
|
|
1794 | |
|
|
1795 | if (coro_nready) |
|
|
1796 | { |
|
|
1797 | prepare_schedule (aTHX_ ta); |
|
|
1798 | api_ready (aTHX_ prev); |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | prepare_nop (aTHX_ ta); |
|
|
1802 | } |
|
|
1803 | |
|
|
1804 | static void |
|
|
1805 | api_schedule (pTHX) |
|
|
1806 | { |
|
|
1807 | struct coro_transfer_args ta; |
|
|
1808 | |
|
|
1809 | prepare_schedule (aTHX_ &ta); |
|
|
1810 | TRANSFER (ta, 1); |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void |
|
|
1814 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1815 | { |
|
|
1816 | struct coro_transfer_args ta; |
|
|
1817 | struct coro *next = SvSTATE (coro_sv); |
|
|
1818 | |
|
|
1819 | SvREFCNT_inc_NN (coro_sv); |
|
|
1820 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1821 | } |
|
|
1822 | |
1652 | static int |
1823 | static int |
1653 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1824 | api_cede (pTHX) |
1654 | { |
1825 | { |
1655 | if (coro_nready) |
1826 | struct coro_transfer_args ta; |
1656 | { |
1827 | |
1657 | SV *prev = SvRV (coro_current); |
|
|
1658 | prepare_schedule (aTHX_ ta); |
1828 | prepare_cede (aTHX_ &ta); |
1659 | api_ready (prev); |
1829 | |
|
|
1830 | if (expect_true (ta.prev != ta.next)) |
|
|
1831 | { |
|
|
1832 | TRANSFER (ta, 1); |
1660 | return 1; |
1833 | return 1; |
1661 | } |
1834 | } |
1662 | else |
1835 | else |
1663 | return 0; |
1836 | return 0; |
1664 | } |
1837 | } |
1665 | |
1838 | |
1666 | static void |
|
|
1667 | api_schedule (void) |
|
|
1668 | { |
|
|
1669 | dTHX; |
|
|
1670 | struct transfer_args ta; |
|
|
1671 | |
|
|
1672 | prepare_schedule (aTHX_ &ta); |
|
|
1673 | TRANSFER (ta, 1); |
|
|
1674 | } |
|
|
1675 | |
|
|
1676 | static int |
1839 | static int |
1677 | api_cede (void) |
1840 | api_cede_notself (pTHX) |
1678 | { |
1841 | { |
1679 | dTHX; |
1842 | if (coro_nready) |
|
|
1843 | { |
1680 | struct transfer_args ta; |
1844 | struct coro_transfer_args ta; |
1681 | |
1845 | |
1682 | prepare_cede (aTHX_ &ta); |
1846 | prepare_cede_notself (aTHX_ &ta); |
1683 | |
|
|
1684 | if (expect_true (ta.prev != ta.next)) |
|
|
1685 | { |
|
|
1686 | TRANSFER (ta, 1); |
1847 | TRANSFER (ta, 1); |
1687 | return 1; |
1848 | return 1; |
1688 | } |
1849 | } |
1689 | else |
1850 | else |
1690 | return 0; |
1851 | return 0; |
1691 | } |
1852 | } |
1692 | |
1853 | |
1693 | static int |
1854 | static void |
1694 | api_cede_notself (void) |
|
|
1695 | { |
|
|
1696 | dTHX; |
|
|
1697 | struct transfer_args ta; |
|
|
1698 | |
|
|
1699 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1700 | { |
|
|
1701 | TRANSFER (ta, 1); |
|
|
1702 | return 1; |
|
|
1703 | } |
|
|
1704 | else |
|
|
1705 | return 0; |
|
|
1706 | } |
|
|
1707 | |
|
|
1708 | static void |
|
|
1709 | api_trace (SV *coro_sv, int flags) |
1855 | api_trace (pTHX_ SV *coro_sv, int flags) |
1710 | { |
1856 | { |
1711 | dTHX; |
|
|
1712 | struct coro *coro = SvSTATE (coro_sv); |
1857 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1858 | |
|
|
1859 | if (coro->flags & CF_RUNNING) |
|
|
1860 | croak ("cannot enable tracing on a running coroutine, caught"); |
1713 | |
1861 | |
1714 | if (flags & CC_TRACE) |
1862 | if (flags & CC_TRACE) |
1715 | { |
1863 | { |
1716 | if (!coro->cctx) |
1864 | if (!coro->cctx) |
1717 | coro->cctx = cctx_new_run (); |
1865 | coro->cctx = cctx_new_run (); |
1718 | else if (!(coro->cctx->flags & CC_TRACE)) |
1866 | else if (!(coro->cctx->flags & CC_TRACE)) |
1719 | croak ("cannot enable tracing on coroutine with custom stack"); |
1867 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1720 | |
1868 | |
1721 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1869 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1722 | } |
1870 | } |
1723 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1871 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1724 | { |
1872 | { |
… | |
… | |
1729 | else |
1877 | else |
1730 | coro->slot->runops = RUNOPS_DEFAULT; |
1878 | coro->slot->runops = RUNOPS_DEFAULT; |
1731 | } |
1879 | } |
1732 | } |
1880 | } |
1733 | |
1881 | |
1734 | #if 0 |
1882 | static void |
|
|
1883 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1884 | { |
|
|
1885 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1886 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1887 | |
|
|
1888 | if (on_destroyp) |
|
|
1889 | { |
|
|
1890 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1891 | |
|
|
1892 | while (AvFILLp (on_destroy) >= 0) |
|
|
1893 | { |
|
|
1894 | dSP; /* don't disturb outer sp */ |
|
|
1895 | SV *cb = av_pop (on_destroy); |
|
|
1896 | |
|
|
1897 | PUSHMARK (SP); |
|
|
1898 | |
|
|
1899 | if (statusp) |
|
|
1900 | { |
|
|
1901 | int i; |
|
|
1902 | AV *status = (AV *)SvRV (*statusp); |
|
|
1903 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1904 | |
|
|
1905 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1906 | PUSHs (AvARRAY (status)[i]); |
|
|
1907 | } |
|
|
1908 | |
|
|
1909 | PUTBACK; |
|
|
1910 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1911 | } |
|
|
1912 | } |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | static void |
|
|
1916 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1917 | { |
|
|
1918 | int i; |
|
|
1919 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1920 | AV *av = newAV (); |
|
|
1921 | |
|
|
1922 | av_extend (av, items - 1); |
|
|
1923 | for (i = 0; i < items; ++i) |
|
|
1924 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1925 | |
|
|
1926 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1927 | |
|
|
1928 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1929 | api_ready (aTHX_ sv_manager); |
|
|
1930 | |
|
|
1931 | frame->prepare = prepare_schedule; |
|
|
1932 | frame->check = slf_check_repeat; |
|
|
1933 | |
|
|
1934 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
1935 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
1936 | /*coro_unwind_stacks (aTHX);*/ |
|
|
1937 | } |
|
|
1938 | |
|
|
1939 | /*****************************************************************************/ |
|
|
1940 | /* async pool handler */ |
|
|
1941 | |
1735 | static int |
1942 | static int |
1736 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1943 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
1737 | { |
1944 | { |
1738 | AV *padlist; |
1945 | HV *hv = (HV *)SvRV (coro_current); |
1739 | AV *av = (AV *)mg->mg_obj; |
1946 | struct coro *coro = (struct coro *)frame->data; |
1740 | |
1947 | |
1741 | abort (); |
1948 | if (!coro->invoke_cb) |
|
|
1949 | return 1; /* loop till we have invoke */ |
|
|
1950 | else |
|
|
1951 | { |
|
|
1952 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1953 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1954 | |
|
|
1955 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1956 | |
|
|
1957 | { |
|
|
1958 | dSP; |
|
|
1959 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1960 | PUTBACK; |
|
|
1961 | } |
|
|
1962 | |
|
|
1963 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1964 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1965 | coro->invoke_av = 0; |
|
|
1966 | |
|
|
1967 | return 0; |
|
|
1968 | } |
|
|
1969 | } |
|
|
1970 | |
|
|
1971 | static void |
|
|
1972 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1973 | { |
|
|
1974 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1975 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1976 | |
|
|
1977 | if (expect_true (coro->saved_deffh)) |
|
|
1978 | { |
|
|
1979 | /* subsequent iteration */ |
|
|
1980 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1981 | coro->saved_deffh = 0; |
|
|
1982 | |
|
|
1983 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1984 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1985 | { |
|
|
1986 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1987 | coro->invoke_av = newAV (); |
|
|
1988 | |
|
|
1989 | frame->prepare = prepare_nop; |
|
|
1990 | } |
|
|
1991 | else |
|
|
1992 | { |
|
|
1993 | av_clear (GvAV (PL_defgv)); |
|
|
1994 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1995 | |
|
|
1996 | coro->prio = 0; |
|
|
1997 | |
|
|
1998 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1999 | api_trace (aTHX_ coro_current, 0); |
|
|
2000 | |
|
|
2001 | frame->prepare = prepare_schedule; |
|
|
2002 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2003 | } |
|
|
2004 | } |
|
|
2005 | else |
|
|
2006 | { |
|
|
2007 | /* first iteration, simply fall through */ |
|
|
2008 | frame->prepare = prepare_nop; |
|
|
2009 | } |
|
|
2010 | |
|
|
2011 | frame->check = slf_check_pool_handler; |
|
|
2012 | frame->data = (void *)coro; |
|
|
2013 | } |
|
|
2014 | |
|
|
2015 | /*****************************************************************************/ |
|
|
2016 | /* rouse callback */ |
|
|
2017 | |
|
|
2018 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2019 | |
|
|
2020 | static void |
|
|
2021 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2022 | { |
|
|
2023 | dXSARGS; |
|
|
2024 | SV *data = (SV *)GENSUB_ARG; |
|
|
2025 | |
|
|
2026 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2027 | { |
|
|
2028 | /* first call, set args */ |
|
|
2029 | SV *coro = SvRV (data); |
|
|
2030 | AV *av = newAV (); |
|
|
2031 | |
|
|
2032 | SvRV_set (data, (SV *)av); |
|
|
2033 | |
|
|
2034 | /* better take a full copy of the arguments */ |
|
|
2035 | while (items--) |
|
|
2036 | av_store (av, items, newSVsv (ST (items))); |
|
|
2037 | |
|
|
2038 | api_ready (aTHX_ coro); |
|
|
2039 | SvREFCNT_dec (coro); |
|
|
2040 | } |
|
|
2041 | |
|
|
2042 | XSRETURN_EMPTY; |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | static int |
|
|
2046 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2047 | { |
|
|
2048 | SV *data = (SV *)frame->data; |
|
|
2049 | |
|
|
2050 | if (CORO_THROW) |
|
|
2051 | return 0; |
|
|
2052 | |
|
|
2053 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2054 | return 1; |
|
|
2055 | |
|
|
2056 | /* now push all results on the stack */ |
|
|
2057 | { |
|
|
2058 | dSP; |
|
|
2059 | AV *av = (AV *)SvRV (data); |
|
|
2060 | int i; |
|
|
2061 | |
|
|
2062 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2063 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2064 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2065 | |
|
|
2066 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2067 | AvFILLp (av) = -1; |
|
|
2068 | av_undef (av); |
|
|
2069 | |
|
|
2070 | PUTBACK; |
|
|
2071 | } |
1742 | |
2072 | |
1743 | return 0; |
2073 | return 0; |
1744 | } |
2074 | } |
1745 | |
2075 | |
1746 | static MGVTBL coro_gensub_vtbl = { |
2076 | static void |
1747 | 0, 0, 0, 0, |
2077 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1748 | coro_gensub_free |
2078 | { |
1749 | }; |
2079 | SV *cb; |
1750 | #endif |
2080 | |
|
|
2081 | if (items) |
|
|
2082 | cb = arg [0]; |
|
|
2083 | else |
|
|
2084 | { |
|
|
2085 | struct coro *coro = SvSTATE_current; |
|
|
2086 | |
|
|
2087 | if (!coro->rouse_cb) |
|
|
2088 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2089 | |
|
|
2090 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2091 | coro->rouse_cb = 0; |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | if (!SvROK (cb) |
|
|
2095 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2096 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2097 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2098 | |
|
|
2099 | { |
|
|
2100 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
2101 | SV *data = (SV *)GENSUB_ARG; |
|
|
2102 | |
|
|
2103 | frame->data = (void *)data; |
|
|
2104 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2105 | frame->check = slf_check_rouse_wait; |
|
|
2106 | } |
|
|
2107 | } |
|
|
2108 | |
|
|
2109 | static SV * |
|
|
2110 | coro_new_rouse_cb (pTHX) |
|
|
2111 | { |
|
|
2112 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2113 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2114 | SV *data = newRV_inc ((SV *)hv); |
|
|
2115 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2116 | |
|
|
2117 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2118 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2119 | |
|
|
2120 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2121 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2122 | |
|
|
2123 | return cb; |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | /*****************************************************************************/ |
|
|
2127 | /* schedule-like-function opcode (SLF) */ |
|
|
2128 | |
|
|
2129 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2130 | static const CV *slf_cv; |
|
|
2131 | static SV **slf_argv; |
|
|
2132 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2133 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2134 | |
|
|
2135 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2136 | /* recreate the stack frame as perl will on following calls */ |
|
|
2137 | /* since entersub cleared the stack */ |
|
|
2138 | static OP * |
|
|
2139 | pp_restore (pTHX) |
|
|
2140 | { |
|
|
2141 | int i; |
|
|
2142 | SV **SP = PL_stack_base + slf_ax; |
|
|
2143 | |
|
|
2144 | PUSHMARK (SP); |
|
|
2145 | |
|
|
2146 | EXTEND (SP, slf_argc + 1); |
|
|
2147 | |
|
|
2148 | for (i = 0; i < slf_argc; ++i) |
|
|
2149 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2150 | |
|
|
2151 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2152 | |
|
|
2153 | RETURNOP (slf_restore.op_first); |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | static void |
|
|
2157 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2158 | { |
|
|
2159 | SV **arg = (SV **)slf_frame.data; |
|
|
2160 | |
|
|
2161 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | static void |
|
|
2165 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2166 | { |
|
|
2167 | if (items != 2) |
|
|
2168 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2169 | |
|
|
2170 | frame->prepare = slf_prepare_transfer; |
|
|
2171 | frame->check = slf_check_nop; |
|
|
2172 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2173 | } |
|
|
2174 | |
|
|
2175 | static void |
|
|
2176 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2177 | { |
|
|
2178 | frame->prepare = prepare_schedule; |
|
|
2179 | frame->check = slf_check_nop; |
|
|
2180 | } |
|
|
2181 | |
|
|
2182 | static void |
|
|
2183 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2184 | { |
|
|
2185 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2186 | |
|
|
2187 | SvREFCNT_inc_NN (next->hv); |
|
|
2188 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2189 | } |
|
|
2190 | |
|
|
2191 | static void |
|
|
2192 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2193 | { |
|
|
2194 | if (!items) |
|
|
2195 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2196 | |
|
|
2197 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2198 | frame->prepare = slf_prepare_schedule_to; |
|
|
2199 | frame->check = slf_check_nop; |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | static void |
|
|
2203 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2204 | { |
|
|
2205 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2206 | |
|
|
2207 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2208 | } |
|
|
2209 | |
|
|
2210 | static void |
|
|
2211 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2212 | { |
|
|
2213 | frame->prepare = prepare_cede; |
|
|
2214 | frame->check = slf_check_nop; |
|
|
2215 | } |
|
|
2216 | |
|
|
2217 | static void |
|
|
2218 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2219 | { |
|
|
2220 | frame->prepare = prepare_cede_notself; |
|
|
2221 | frame->check = slf_check_nop; |
|
|
2222 | } |
|
|
2223 | |
|
|
2224 | /* |
|
|
2225 | * these not obviously related functions are all rolled into one |
|
|
2226 | * function to increase chances that they all will call transfer with the same |
|
|
2227 | * stack offset |
|
|
2228 | * SLF stands for "schedule-like-function". |
|
|
2229 | */ |
|
|
2230 | static OP * |
|
|
2231 | pp_slf (pTHX) |
|
|
2232 | { |
|
|
2233 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2234 | |
|
|
2235 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2236 | /* the latter happens when a new coro has been started */ |
|
|
2237 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2238 | if (expect_true (!slf_frame.prepare)) |
|
|
2239 | { |
|
|
2240 | /* first iteration */ |
|
|
2241 | dSP; |
|
|
2242 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2243 | int items = SP - arg; /* args without function object */ |
|
|
2244 | SV *gv = *sp; |
|
|
2245 | |
|
|
2246 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2247 | /* for us, divert to the real entersub */ |
|
|
2248 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2249 | || !GvCV (gv) |
|
|
2250 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2251 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2252 | |
|
|
2253 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2254 | { |
|
|
2255 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2256 | AV *av = GvAV (PL_defgv); |
|
|
2257 | arg = AvARRAY (av); |
|
|
2258 | items = AvFILLp (av) + 1; |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2262 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2263 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2264 | |
|
|
2265 | /* pop args */ |
|
|
2266 | SP = PL_stack_base + POPMARK; |
|
|
2267 | |
|
|
2268 | PUTBACK; |
|
|
2269 | } |
|
|
2270 | |
|
|
2271 | /* now that we have a slf_frame, interpret it! */ |
|
|
2272 | /* we use a callback system not to make the code needlessly */ |
|
|
2273 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2274 | |
|
|
2275 | do |
|
|
2276 | { |
|
|
2277 | struct coro_transfer_args ta; |
|
|
2278 | |
|
|
2279 | slf_frame.prepare (aTHX_ &ta); |
|
|
2280 | TRANSFER (ta, 0); |
|
|
2281 | |
|
|
2282 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2283 | } |
|
|
2284 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2285 | |
|
|
2286 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2287 | |
|
|
2288 | /* exception handling */ |
|
|
2289 | if (expect_false (CORO_THROW)) |
|
|
2290 | { |
|
|
2291 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2292 | |
|
|
2293 | CORO_THROW = 0; |
|
|
2294 | sv_setsv (ERRSV, exception); |
|
|
2295 | croak (0); |
|
|
2296 | } |
|
|
2297 | |
|
|
2298 | /* return value handling - mostly like entersub */ |
|
|
2299 | /* make sure we put something on the stack in scalar context */ |
|
|
2300 | if (GIMME_V == G_SCALAR) |
|
|
2301 | { |
|
|
2302 | dSP; |
|
|
2303 | SV **bot = PL_stack_base + checkmark; |
|
|
2304 | |
|
|
2305 | if (sp == bot) /* too few, push undef */ |
|
|
2306 | bot [1] = &PL_sv_undef; |
|
|
2307 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2308 | bot [1] = *sp; |
|
|
2309 | |
|
|
2310 | SP = bot + 1; |
|
|
2311 | |
|
|
2312 | PUTBACK; |
|
|
2313 | } |
|
|
2314 | |
|
|
2315 | return NORMAL; |
|
|
2316 | } |
|
|
2317 | |
|
|
2318 | static void |
|
|
2319 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2320 | { |
|
|
2321 | int i; |
|
|
2322 | SV **arg = PL_stack_base + ax; |
|
|
2323 | int items = PL_stack_sp - arg + 1; |
|
|
2324 | |
|
|
2325 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2326 | |
|
|
2327 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2328 | && PL_op->op_ppaddr != pp_slf) |
|
|
2329 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2330 | |
|
|
2331 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2332 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2333 | slf_cv = cv; |
|
|
2334 | |
|
|
2335 | /* we patch the op, and then re-run the whole call */ |
|
|
2336 | /* we have to put the same argument on the stack for this to work */ |
|
|
2337 | /* and this will be done by pp_restore */ |
|
|
2338 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2339 | slf_restore.op_type = OP_CUSTOM; |
|
|
2340 | slf_restore.op_ppaddr = pp_restore; |
|
|
2341 | slf_restore.op_first = PL_op; |
|
|
2342 | |
|
|
2343 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2344 | |
|
|
2345 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2346 | { |
|
|
2347 | if (items > slf_arga) |
|
|
2348 | { |
|
|
2349 | slf_arga = items; |
|
|
2350 | free (slf_argv); |
|
|
2351 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2352 | } |
|
|
2353 | |
|
|
2354 | slf_argc = items; |
|
|
2355 | |
|
|
2356 | for (i = 0; i < items; ++i) |
|
|
2357 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2358 | } |
|
|
2359 | else |
|
|
2360 | slf_argc = 0; |
|
|
2361 | |
|
|
2362 | PL_op->op_ppaddr = pp_slf; |
|
|
2363 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2364 | |
|
|
2365 | PL_op = (OP *)&slf_restore; |
|
|
2366 | } |
|
|
2367 | |
|
|
2368 | /*****************************************************************************/ |
|
|
2369 | /* dynamic wind */ |
|
|
2370 | |
|
|
2371 | static void |
|
|
2372 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2373 | { |
|
|
2374 | dSP; |
|
|
2375 | |
|
|
2376 | PUSHSTACK; |
|
|
2377 | |
|
|
2378 | PUSHMARK (SP); |
|
|
2379 | PUTBACK; |
|
|
2380 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2381 | SPAGAIN; |
|
|
2382 | |
|
|
2383 | POPSTACK; |
|
|
2384 | } |
|
|
2385 | |
|
|
2386 | static SV * |
|
|
2387 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2388 | { |
|
|
2389 | AV *av = *avp; |
|
|
2390 | SV *res = av_pop (av); |
|
|
2391 | |
|
|
2392 | if (AvFILLp (av) < 0) |
|
|
2393 | { |
|
|
2394 | *avp = 0; |
|
|
2395 | SvREFCNT_dec (av); |
|
|
2396 | } |
|
|
2397 | |
|
|
2398 | return res; |
|
|
2399 | } |
|
|
2400 | |
|
|
2401 | static void |
|
|
2402 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2403 | { |
|
|
2404 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2405 | SvREFCNT_dec (cb); |
|
|
2406 | } |
|
|
2407 | |
|
|
2408 | static void |
|
|
2409 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2410 | { |
|
|
2411 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2412 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2413 | } |
1751 | |
2414 | |
1752 | /*****************************************************************************/ |
2415 | /*****************************************************************************/ |
1753 | /* PerlIO::cede */ |
2416 | /* PerlIO::cede */ |
1754 | |
2417 | |
1755 | typedef struct |
2418 | typedef struct |
… | |
… | |
1783 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2446 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1784 | double now = nvtime (); |
2447 | double now = nvtime (); |
1785 | |
2448 | |
1786 | if (now >= self->next) |
2449 | if (now >= self->next) |
1787 | { |
2450 | { |
1788 | api_cede (); |
2451 | api_cede (aTHX); |
1789 | self->next = now + self->every; |
2452 | self->next = now + self->every; |
1790 | } |
2453 | } |
1791 | |
2454 | |
1792 | return PerlIOBuf_flush (aTHX_ f); |
2455 | return PerlIOBuf_flush (aTHX_ f); |
1793 | } |
2456 | } |
… | |
… | |
1823 | PerlIOBuf_get_cnt, |
2486 | PerlIOBuf_get_cnt, |
1824 | PerlIOBuf_set_ptrcnt, |
2487 | PerlIOBuf_set_ptrcnt, |
1825 | }; |
2488 | }; |
1826 | |
2489 | |
1827 | /*****************************************************************************/ |
2490 | /*****************************************************************************/ |
|
|
2491 | /* Coro::Semaphore & Coro::Signal */ |
1828 | |
2492 | |
1829 | static const CV *ssl_cv; /* for quick consistency check */ |
|
|
1830 | |
|
|
1831 | static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1832 | static SV *ssl_arg0; |
|
|
1833 | static SV *ssl_arg1; |
|
|
1834 | |
|
|
1835 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1836 | /* recreate the stack frame as perl will on following calls */ |
|
|
1837 | /* since entersub cleared the stack */ |
|
|
1838 | static OP * |
2493 | static SV * |
1839 | pp_restore (pTHX) |
2494 | coro_waitarray_new (pTHX_ int count) |
1840 | { |
2495 | { |
|
|
2496 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2497 | AV *av = newAV (); |
|
|
2498 | SV **ary; |
|
|
2499 | |
|
|
2500 | /* unfortunately, building manually saves memory */ |
|
|
2501 | Newx (ary, 2, SV *); |
|
|
2502 | AvALLOC (av) = ary; |
|
|
2503 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2504 | AvARRAY (av) = ary; |
|
|
2505 | #else |
|
|
2506 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2507 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2508 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2509 | #endif |
|
|
2510 | AvMAX (av) = 1; |
|
|
2511 | AvFILLp (av) = 0; |
|
|
2512 | ary [0] = newSViv (count); |
|
|
2513 | |
|
|
2514 | return newRV_noinc ((SV *)av); |
|
|
2515 | } |
|
|
2516 | |
|
|
2517 | /* semaphore */ |
|
|
2518 | |
|
|
2519 | static void |
|
|
2520 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2521 | { |
|
|
2522 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2523 | IV count = SvIVX (count_sv); |
|
|
2524 | |
|
|
2525 | count += adjust; |
|
|
2526 | SvIVX (count_sv) = count; |
|
|
2527 | |
|
|
2528 | /* now wake up as many waiters as are expected to lock */ |
|
|
2529 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2530 | { |
|
|
2531 | SV *cb; |
|
|
2532 | |
|
|
2533 | /* swap first two elements so we can shift a waiter */ |
|
|
2534 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2535 | AvARRAY (av)[1] = count_sv; |
|
|
2536 | cb = av_shift (av); |
|
|
2537 | |
|
|
2538 | if (SvOBJECT (cb)) |
|
|
2539 | { |
|
|
2540 | api_ready (aTHX_ cb); |
|
|
2541 | --count; |
|
|
2542 | } |
|
|
2543 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2544 | { |
|
|
2545 | dSP; |
|
|
2546 | PUSHMARK (SP); |
|
|
2547 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2548 | PUTBACK; |
|
|
2549 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2550 | } |
|
|
2551 | |
|
|
2552 | SvREFCNT_dec (cb); |
|
|
2553 | } |
|
|
2554 | } |
|
|
2555 | |
|
|
2556 | static void |
|
|
2557 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2558 | { |
|
|
2559 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2560 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2561 | } |
|
|
2562 | |
|
|
2563 | static int |
|
|
2564 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2565 | { |
|
|
2566 | AV *av = (AV *)frame->data; |
|
|
2567 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2568 | |
|
|
2569 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2570 | if (CORO_THROW) |
|
|
2571 | return 0; |
|
|
2572 | else if (SvIVX (count_sv) > 0) |
|
|
2573 | { |
|
|
2574 | SvSTATE_current->on_destroy = 0; |
|
|
2575 | |
|
|
2576 | if (acquire) |
|
|
2577 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2578 | else |
|
|
2579 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2580 | |
|
|
2581 | return 0; |
|
|
2582 | } |
|
|
2583 | else |
|
|
2584 | { |
|
|
2585 | int i; |
|
|
2586 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2587 | /* waiters list and only add us if we aren't in there already */ |
|
|
2588 | /* this avoids some degenerate memory usage cases */ |
|
|
2589 | |
|
|
2590 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2591 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2592 | return 1; |
|
|
2593 | |
|
|
2594 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2595 | return 1; |
|
|
2596 | } |
|
|
2597 | } |
|
|
2598 | |
|
|
2599 | static int |
|
|
2600 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2601 | { |
|
|
2602 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2603 | } |
|
|
2604 | |
|
|
2605 | static int |
|
|
2606 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2607 | { |
|
|
2608 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2609 | } |
|
|
2610 | |
|
|
2611 | static void |
|
|
2612 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2613 | { |
|
|
2614 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2615 | |
|
|
2616 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2617 | { |
|
|
2618 | frame->data = (void *)av; |
|
|
2619 | frame->prepare = prepare_nop; |
|
|
2620 | } |
|
|
2621 | else |
|
|
2622 | { |
|
|
2623 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2624 | |
|
|
2625 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2626 | frame->prepare = prepare_schedule; |
|
|
2627 | |
|
|
2628 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2629 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2630 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2631 | } |
|
|
2632 | } |
|
|
2633 | |
|
|
2634 | static void |
|
|
2635 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2636 | { |
|
|
2637 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2638 | frame->check = slf_check_semaphore_down; |
|
|
2639 | } |
|
|
2640 | |
|
|
2641 | static void |
|
|
2642 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2643 | { |
|
|
2644 | if (items >= 2) |
|
|
2645 | { |
|
|
2646 | /* callback form */ |
|
|
2647 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2648 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2649 | |
|
|
2650 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2651 | |
|
|
2652 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2653 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2654 | |
|
|
2655 | frame->prepare = prepare_nop; |
|
|
2656 | frame->check = slf_check_nop; |
|
|
2657 | } |
|
|
2658 | else |
|
|
2659 | { |
|
|
2660 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2661 | frame->check = slf_check_semaphore_wait; |
|
|
2662 | } |
|
|
2663 | } |
|
|
2664 | |
|
|
2665 | /* signal */ |
|
|
2666 | |
|
|
2667 | static void |
|
|
2668 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2669 | { |
|
|
2670 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2671 | |
|
|
2672 | /* now signal count waiters */ |
|
|
2673 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2674 | { |
|
|
2675 | SV *cb; |
|
|
2676 | |
|
|
2677 | /* swap first two elements so we can shift a waiter */ |
|
|
2678 | cb = AvARRAY (av)[0]; |
|
|
2679 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2680 | AvARRAY (av)[1] = cb; |
|
|
2681 | |
|
|
2682 | cb = av_shift (av); |
|
|
2683 | |
|
|
2684 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
2685 | { |
|
|
2686 | dSP; |
|
|
2687 | PUSHMARK (SP); |
|
|
2688 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2689 | PUTBACK; |
|
|
2690 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2691 | } |
|
|
2692 | else |
|
|
2693 | { |
|
|
2694 | api_ready (aTHX_ cb); |
|
|
2695 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2696 | } |
|
|
2697 | |
|
|
2698 | SvREFCNT_dec (cb); |
|
|
2699 | |
|
|
2700 | --count; |
|
|
2701 | } |
|
|
2702 | } |
|
|
2703 | |
|
|
2704 | static int |
|
|
2705 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2706 | { |
|
|
2707 | /* if we are about to throw, also stop waiting */ |
|
|
2708 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2709 | } |
|
|
2710 | |
|
|
2711 | static void |
|
|
2712 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2713 | { |
|
|
2714 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2715 | |
|
|
2716 | if (items >= 2) |
|
|
2717 | { |
|
|
2718 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2719 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2720 | |
|
|
2721 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2722 | coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ |
|
|
2723 | |
|
|
2724 | frame->prepare = prepare_nop; |
|
|
2725 | frame->check = slf_check_nop; |
|
|
2726 | } |
|
|
2727 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
2728 | { |
|
|
2729 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2730 | frame->prepare = prepare_nop; |
|
|
2731 | frame->check = slf_check_nop; |
|
|
2732 | } |
|
|
2733 | else |
|
|
2734 | { |
|
|
2735 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
2736 | |
|
|
2737 | av_push (av, waiter); |
|
|
2738 | |
|
|
2739 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2740 | frame->prepare = prepare_schedule; |
|
|
2741 | frame->check = slf_check_signal_wait; |
|
|
2742 | } |
|
|
2743 | } |
|
|
2744 | |
|
|
2745 | /*****************************************************************************/ |
|
|
2746 | /* Coro::AIO */ |
|
|
2747 | |
|
|
2748 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2749 | |
|
|
2750 | /* helper storage struct */ |
|
|
2751 | struct io_state |
|
|
2752 | { |
|
|
2753 | int errorno; |
|
|
2754 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2755 | int laststatval; |
|
|
2756 | Stat_t statcache; |
|
|
2757 | }; |
|
|
2758 | |
|
|
2759 | static void |
|
|
2760 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2761 | { |
|
|
2762 | dXSARGS; |
|
|
2763 | AV *state = (AV *)GENSUB_ARG; |
|
|
2764 | SV *coro = av_pop (state); |
|
|
2765 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2766 | |
|
|
2767 | av_extend (state, items - 1); |
|
|
2768 | |
|
|
2769 | sv_upgrade (data_sv, SVt_PV); |
|
|
2770 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2771 | SvPOK_only (data_sv); |
|
|
2772 | |
|
|
2773 | { |
|
|
2774 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2775 | |
|
|
2776 | data->errorno = errno; |
|
|
2777 | data->laststype = PL_laststype; |
|
|
2778 | data->laststatval = PL_laststatval; |
|
|
2779 | data->statcache = PL_statcache; |
|
|
2780 | } |
|
|
2781 | |
|
|
2782 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2783 | { |
|
|
2784 | int i; |
|
|
2785 | |
|
|
2786 | for (i = 0; i < items; ++i) |
|
|
2787 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2788 | } |
|
|
2789 | |
|
|
2790 | av_push (state, data_sv); |
|
|
2791 | |
|
|
2792 | api_ready (aTHX_ coro); |
|
|
2793 | SvREFCNT_dec (coro); |
|
|
2794 | SvREFCNT_dec ((AV *)state); |
|
|
2795 | } |
|
|
2796 | |
|
|
2797 | static int |
|
|
2798 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2799 | { |
|
|
2800 | AV *state = (AV *)frame->data; |
|
|
2801 | |
|
|
2802 | /* if we are about to throw, return early */ |
|
|
2803 | /* this does not cancel the aio request, but at least */ |
|
|
2804 | /* it quickly returns */ |
|
|
2805 | if (CORO_THROW) |
|
|
2806 | return 0; |
|
|
2807 | |
|
|
2808 | /* one element that is an RV? repeat! */ |
|
|
2809 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2810 | return 1; |
|
|
2811 | |
|
|
2812 | /* restore status */ |
|
|
2813 | { |
|
|
2814 | SV *data_sv = av_pop (state); |
|
|
2815 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2816 | |
|
|
2817 | errno = data->errorno; |
|
|
2818 | PL_laststype = data->laststype; |
|
|
2819 | PL_laststatval = data->laststatval; |
|
|
2820 | PL_statcache = data->statcache; |
|
|
2821 | |
|
|
2822 | SvREFCNT_dec (data_sv); |
|
|
2823 | } |
|
|
2824 | |
|
|
2825 | /* push result values */ |
|
|
2826 | { |
1841 | dSP; |
2827 | dSP; |
|
|
2828 | int i; |
1842 | |
2829 | |
|
|
2830 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2831 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2832 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2833 | |
|
|
2834 | PUTBACK; |
|
|
2835 | } |
|
|
2836 | |
|
|
2837 | return 0; |
|
|
2838 | } |
|
|
2839 | |
|
|
2840 | static void |
|
|
2841 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2842 | { |
|
|
2843 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2844 | SV *coro_hv = SvRV (coro_current); |
|
|
2845 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2846 | |
|
|
2847 | /* put our coroutine id on the state arg */ |
|
|
2848 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2849 | |
|
|
2850 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2851 | if (coro->prio) |
|
|
2852 | { |
|
|
2853 | dSP; |
|
|
2854 | |
|
|
2855 | static SV *prio_cv; |
|
|
2856 | static SV *prio_sv; |
|
|
2857 | |
|
|
2858 | if (expect_false (!prio_cv)) |
|
|
2859 | { |
|
|
2860 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2861 | prio_sv = newSViv (0); |
|
|
2862 | } |
|
|
2863 | |
|
|
2864 | PUSHMARK (SP); |
|
|
2865 | sv_setiv (prio_sv, coro->prio); |
|
|
2866 | XPUSHs (prio_sv); |
|
|
2867 | |
|
|
2868 | PUTBACK; |
|
|
2869 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2870 | } |
|
|
2871 | |
|
|
2872 | /* now call the original request */ |
|
|
2873 | { |
|
|
2874 | dSP; |
|
|
2875 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2876 | int i; |
|
|
2877 | |
1843 | PUSHMARK (SP); |
2878 | PUSHMARK (SP); |
1844 | |
2879 | |
1845 | EXTEND (SP, 3); |
2880 | /* first push all args to the stack */ |
1846 | if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0; |
2881 | EXTEND (SP, items + 1); |
1847 | if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0; |
|
|
1848 | PUSHs ((SV *)CvGV (ssl_cv)); |
|
|
1849 | |
2882 | |
1850 | RETURNOP (ssl_restore.op_first); |
2883 | for (i = 0; i < items; ++i) |
1851 | } |
2884 | PUSHs (arg [i]); |
1852 | |
2885 | |
1853 | /* declare prototype */ |
2886 | /* now push the callback closure */ |
1854 | XS(XS_Coro__State__set_stacklevel); |
2887 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
1855 | |
2888 | |
1856 | static OP * |
2889 | /* now call the AIO function - we assume our request is uncancelable */ |
1857 | pp_set_stacklevel (pTHX) |
|
|
1858 | { |
|
|
1859 | dSP; |
|
|
1860 | struct transfer_args ta; |
|
|
1861 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1862 | int items = SP - arg; /* args without function object */ |
|
|
1863 | |
|
|
1864 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1865 | /* for us, divert to the real entersub */ |
|
|
1866 | if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel) |
|
|
1867 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1868 | |
|
|
1869 | /* pop args */ |
|
|
1870 | SP = PL_stack_base + POPMARK; |
|
|
1871 | |
|
|
1872 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1873 | { |
|
|
1874 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1875 | AV *av = GvAV (PL_defgv); |
|
|
1876 | arg = AvARRAY (av); |
|
|
1877 | items = AvFILLp (av) + 1; |
|
|
1878 | } |
|
|
1879 | |
|
|
1880 | PUTBACK; |
2890 | PUTBACK; |
1881 | switch (PL_op->op_private & 7) |
2891 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
1882 | { |
|
|
1883 | case 0: |
|
|
1884 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0])); |
|
|
1885 | break; |
|
|
1886 | |
|
|
1887 | case 1: |
|
|
1888 | if (items != 2) |
|
|
1889 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items); |
|
|
1890 | |
|
|
1891 | prepare_transfer (aTHX_ &ta, arg [0], arg [1]); |
|
|
1892 | break; |
|
|
1893 | |
|
|
1894 | case 2: |
|
|
1895 | prepare_schedule (aTHX_ &ta); |
|
|
1896 | break; |
|
|
1897 | |
|
|
1898 | case 3: |
|
|
1899 | prepare_cede (aTHX_ &ta); |
|
|
1900 | break; |
|
|
1901 | |
|
|
1902 | case 4: |
|
|
1903 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1904 | goto skip; |
|
|
1905 | |
|
|
1906 | break; |
|
|
1907 | } |
2892 | } |
1908 | |
2893 | |
1909 | TRANSFER (ta, 0); |
2894 | /* now that the requets is going, we loop toll we have a result */ |
1910 | SPAGAIN; |
2895 | frame->data = (void *)state; |
1911 | |
2896 | frame->prepare = prepare_schedule; |
1912 | skip: |
2897 | frame->check = slf_check_aio_req; |
1913 | PUTBACK; |
|
|
1914 | SSL_TAIL; |
|
|
1915 | SPAGAIN; |
|
|
1916 | RETURN; |
|
|
1917 | } |
2898 | } |
|
|
2899 | |
|
|
2900 | static void |
|
|
2901 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2902 | { |
|
|
2903 | dXSARGS; |
|
|
2904 | |
|
|
2905 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2906 | |
|
|
2907 | XSRETURN_EMPTY; |
|
|
2908 | } |
|
|
2909 | |
|
|
2910 | /*****************************************************************************/ |
|
|
2911 | |
|
|
2912 | #if CORO_CLONE |
|
|
2913 | # include "clone.c" |
|
|
2914 | #endif |
1918 | |
2915 | |
1919 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2916 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1920 | |
2917 | |
1921 | PROTOTYPES: DISABLE |
2918 | PROTOTYPES: DISABLE |
1922 | |
2919 | |
1923 | # these not obviously related functions are all rolled into the same xs |
|
|
1924 | # function to increase chances that they all will call transfer with the same |
|
|
1925 | # stack offset |
|
|
1926 | void |
|
|
1927 | _set_stacklevel (...) |
|
|
1928 | ALIAS: |
|
|
1929 | Coro::State::transfer = 1 |
|
|
1930 | Coro::schedule = 2 |
|
|
1931 | Coro::cede = 3 |
|
|
1932 | Coro::cede_notself = 4 |
|
|
1933 | CODE: |
|
|
1934 | { |
|
|
1935 | assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel)); |
|
|
1936 | |
|
|
1937 | /* we patch the op, and then re-run the whole call */ |
|
|
1938 | /* we have to put some dummy argument on the stack for this to work */ |
|
|
1939 | /* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */ |
|
|
1940 | ssl_restore.op_next = (OP *)&ssl_restore; |
|
|
1941 | ssl_restore.op_type = OP_NULL; |
|
|
1942 | ssl_restore.op_ppaddr = pp_restore; |
|
|
1943 | ssl_restore.op_first = PL_op; |
|
|
1944 | |
|
|
1945 | ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0; |
|
|
1946 | ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0; |
|
|
1947 | |
|
|
1948 | PL_op->op_ppaddr = pp_set_stacklevel; |
|
|
1949 | PL_op->op_private = PL_op->op_private & ~7 | ix; /* we potentially share our private flags with entersub */ |
|
|
1950 | |
|
|
1951 | PL_op = (OP *)&ssl_restore; |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | BOOT: |
2920 | BOOT: |
1955 | { |
2921 | { |
1956 | #ifdef USE_ITHREADS |
2922 | #ifdef USE_ITHREADS |
1957 | MUTEX_INIT (&coro_lock); |
|
|
1958 | # if CORO_PTHREAD |
2923 | # if CORO_PTHREAD |
1959 | coro_thx = PERL_GET_CONTEXT; |
2924 | coro_thx = PERL_GET_CONTEXT; |
1960 | # endif |
2925 | # endif |
1961 | #endif |
2926 | #endif |
1962 | BOOT_PAGESIZE; |
2927 | BOOT_PAGESIZE; |
1963 | |
2928 | |
1964 | ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0); |
2929 | cctx_current = cctx_new_empty (); |
1965 | |
2930 | |
1966 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2931 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1967 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2932 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1968 | |
2933 | |
1969 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2934 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
… | |
… | |
1985 | main_top_env = PL_top_env; |
2950 | main_top_env = PL_top_env; |
1986 | |
2951 | |
1987 | while (main_top_env->je_prev) |
2952 | while (main_top_env->je_prev) |
1988 | main_top_env = main_top_env->je_prev; |
2953 | main_top_env = main_top_env->je_prev; |
1989 | |
2954 | |
|
|
2955 | { |
|
|
2956 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2957 | |
|
|
2958 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2959 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
2960 | |
|
|
2961 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2962 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
2963 | } |
|
|
2964 | |
1990 | coroapi.ver = CORO_API_VERSION; |
2965 | coroapi.ver = CORO_API_VERSION; |
1991 | coroapi.rev = CORO_API_REVISION; |
2966 | coroapi.rev = CORO_API_REVISION; |
|
|
2967 | |
1992 | coroapi.transfer = api_transfer; |
2968 | coroapi.transfer = api_transfer; |
|
|
2969 | |
|
|
2970 | coroapi.sv_state = SvSTATE_; |
|
|
2971 | coroapi.execute_slf = api_execute_slf; |
|
|
2972 | coroapi.prepare_nop = prepare_nop; |
|
|
2973 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2974 | coroapi.prepare_cede = prepare_cede; |
|
|
2975 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1993 | |
2976 | |
1994 | { |
2977 | { |
1995 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2978 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1996 | |
2979 | |
1997 | if (!svp) croak ("Time::HiRes is required"); |
2980 | if (!svp) croak ("Time::HiRes is required"); |
1998 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
2981 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
1999 | |
2982 | |
2000 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
2983 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
2001 | } |
2984 | } |
2002 | |
2985 | |
2003 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2986 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
2004 | } |
2987 | } |
2005 | |
2988 | |
2006 | SV * |
2989 | SV * |
2007 | new (char *klass, ...) |
2990 | new (char *klass, ...) |
|
|
2991 | ALIAS: |
|
|
2992 | Coro::new = 1 |
2008 | CODE: |
2993 | CODE: |
2009 | { |
2994 | { |
2010 | struct coro *coro; |
2995 | struct coro *coro; |
2011 | MAGIC *mg; |
2996 | MAGIC *mg; |
2012 | HV *hv; |
2997 | HV *hv; |
|
|
2998 | CV *cb; |
2013 | int i; |
2999 | int i; |
|
|
3000 | |
|
|
3001 | if (items > 1) |
|
|
3002 | { |
|
|
3003 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
3004 | |
|
|
3005 | if (!ix) |
|
|
3006 | { |
|
|
3007 | if (CvISXSUB (cb)) |
|
|
3008 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3009 | |
|
|
3010 | if (!CvROOT (cb)) |
|
|
3011 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3012 | } |
|
|
3013 | } |
2014 | |
3014 | |
2015 | Newz (0, coro, 1, struct coro); |
3015 | Newz (0, coro, 1, struct coro); |
2016 | coro->args = newAV (); |
3016 | coro->args = newAV (); |
2017 | coro->flags = CF_NEW; |
3017 | coro->flags = CF_NEW; |
2018 | |
3018 | |
… | |
… | |
2023 | coro->hv = hv = newHV (); |
3023 | coro->hv = hv = newHV (); |
2024 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
3024 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2025 | mg->mg_flags |= MGf_DUP; |
3025 | mg->mg_flags |= MGf_DUP; |
2026 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
3026 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2027 | |
3027 | |
|
|
3028 | if (items > 1) |
|
|
3029 | { |
2028 | av_extend (coro->args, items - 1); |
3030 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
3031 | |
|
|
3032 | if (ix) |
|
|
3033 | { |
|
|
3034 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3035 | cb = cv_coro_run; |
|
|
3036 | } |
|
|
3037 | |
|
|
3038 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3039 | |
2029 | for (i = 1; i < items; i++) |
3040 | for (i = 2; i < items; i++) |
2030 | av_push (coro->args, newSVsv (ST (i))); |
3041 | av_push (coro->args, newSVsv (ST (i))); |
|
|
3042 | } |
2031 | } |
3043 | } |
2032 | OUTPUT: |
3044 | OUTPUT: |
2033 | RETVAL |
3045 | RETVAL |
|
|
3046 | |
|
|
3047 | void |
|
|
3048 | transfer (...) |
|
|
3049 | PROTOTYPE: $$ |
|
|
3050 | CODE: |
|
|
3051 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2034 | |
3052 | |
2035 | bool |
3053 | bool |
2036 | _destroy (SV *coro_sv) |
3054 | _destroy (SV *coro_sv) |
2037 | CODE: |
3055 | CODE: |
2038 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
3056 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2043 | _exit (int code) |
3061 | _exit (int code) |
2044 | PROTOTYPE: $ |
3062 | PROTOTYPE: $ |
2045 | CODE: |
3063 | CODE: |
2046 | _exit (code); |
3064 | _exit (code); |
2047 | |
3065 | |
|
|
3066 | SV * |
|
|
3067 | clone (Coro::State coro) |
|
|
3068 | CODE: |
|
|
3069 | { |
|
|
3070 | #if CORO_CLONE |
|
|
3071 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3072 | MAGIC *mg; |
|
|
3073 | /* TODO: too much duplication */ |
|
|
3074 | ncoro->hv = newHV (); |
|
|
3075 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3076 | mg->mg_flags |= MGf_DUP; |
|
|
3077 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3078 | #else |
|
|
3079 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3080 | #endif |
|
|
3081 | } |
|
|
3082 | OUTPUT: |
|
|
3083 | RETVAL |
|
|
3084 | |
2048 | int |
3085 | int |
2049 | cctx_stacksize (int new_stacksize = 0) |
3086 | cctx_stacksize (int new_stacksize = 0) |
|
|
3087 | PROTOTYPE: ;$ |
2050 | CODE: |
3088 | CODE: |
2051 | RETVAL = cctx_stacksize; |
3089 | RETVAL = cctx_stacksize; |
2052 | if (new_stacksize) |
3090 | if (new_stacksize) |
2053 | { |
3091 | { |
2054 | cctx_stacksize = new_stacksize; |
3092 | cctx_stacksize = new_stacksize; |
… | |
… | |
2057 | OUTPUT: |
3095 | OUTPUT: |
2058 | RETVAL |
3096 | RETVAL |
2059 | |
3097 | |
2060 | int |
3098 | int |
2061 | cctx_max_idle (int max_idle = 0) |
3099 | cctx_max_idle (int max_idle = 0) |
|
|
3100 | PROTOTYPE: ;$ |
2062 | CODE: |
3101 | CODE: |
2063 | RETVAL = cctx_max_idle; |
3102 | RETVAL = cctx_max_idle; |
2064 | if (max_idle > 1) |
3103 | if (max_idle > 1) |
2065 | cctx_max_idle = max_idle; |
3104 | cctx_max_idle = max_idle; |
2066 | OUTPUT: |
3105 | OUTPUT: |
2067 | RETVAL |
3106 | RETVAL |
2068 | |
3107 | |
2069 | int |
3108 | int |
2070 | cctx_count () |
3109 | cctx_count () |
|
|
3110 | PROTOTYPE: |
2071 | CODE: |
3111 | CODE: |
2072 | RETVAL = cctx_count; |
3112 | RETVAL = cctx_count; |
2073 | OUTPUT: |
3113 | OUTPUT: |
2074 | RETVAL |
3114 | RETVAL |
2075 | |
3115 | |
2076 | int |
3116 | int |
2077 | cctx_idle () |
3117 | cctx_idle () |
|
|
3118 | PROTOTYPE: |
2078 | CODE: |
3119 | CODE: |
2079 | RETVAL = cctx_idle; |
3120 | RETVAL = cctx_idle; |
2080 | OUTPUT: |
3121 | OUTPUT: |
2081 | RETVAL |
3122 | RETVAL |
2082 | |
3123 | |
2083 | void |
3124 | void |
2084 | list () |
3125 | list () |
|
|
3126 | PROTOTYPE: |
2085 | PPCODE: |
3127 | PPCODE: |
2086 | { |
3128 | { |
2087 | struct coro *coro; |
3129 | struct coro *coro; |
2088 | for (coro = coro_first; coro; coro = coro->next) |
3130 | for (coro = coro_first; coro; coro = coro->next) |
2089 | if (coro->hv) |
3131 | if (coro->hv) |
… | |
… | |
2096 | eval = 1 |
3138 | eval = 1 |
2097 | CODE: |
3139 | CODE: |
2098 | { |
3140 | { |
2099 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3141 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
2100 | { |
3142 | { |
2101 | struct coro temp; |
3143 | struct coro *current = SvSTATE_current; |
2102 | |
3144 | |
2103 | if (!(coro->flags & CF_RUNNING)) |
3145 | if (current != coro) |
2104 | { |
3146 | { |
2105 | PUTBACK; |
3147 | PUTBACK; |
2106 | save_perl (aTHX_ &temp); |
3148 | save_perl (aTHX_ current); |
2107 | load_perl (aTHX_ coro); |
3149 | load_perl (aTHX_ coro); |
|
|
3150 | SPAGAIN; |
2108 | } |
3151 | } |
2109 | |
3152 | |
2110 | { |
|
|
2111 | dSP; |
|
|
2112 | ENTER; |
|
|
2113 | SAVETMPS; |
|
|
2114 | PUTBACK; |
|
|
2115 | PUSHSTACK; |
3153 | PUSHSTACK; |
|
|
3154 | |
2116 | PUSHMARK (SP); |
3155 | PUSHMARK (SP); |
|
|
3156 | PUTBACK; |
2117 | |
3157 | |
2118 | if (ix) |
3158 | if (ix) |
2119 | eval_sv (coderef, 0); |
3159 | eval_sv (coderef, 0); |
2120 | else |
3160 | else |
2121 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3161 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2122 | |
3162 | |
2123 | POPSTACK; |
3163 | POPSTACK; |
2124 | SPAGAIN; |
3164 | SPAGAIN; |
2125 | FREETMPS; |
|
|
2126 | LEAVE; |
|
|
2127 | PUTBACK; |
|
|
2128 | } |
|
|
2129 | |
3165 | |
2130 | if (!(coro->flags & CF_RUNNING)) |
3166 | if (current != coro) |
2131 | { |
3167 | { |
|
|
3168 | PUTBACK; |
2132 | save_perl (aTHX_ coro); |
3169 | save_perl (aTHX_ coro); |
2133 | load_perl (aTHX_ &temp); |
3170 | load_perl (aTHX_ current); |
2134 | SPAGAIN; |
3171 | SPAGAIN; |
2135 | } |
3172 | } |
2136 | } |
3173 | } |
2137 | } |
3174 | } |
2138 | |
3175 | |
… | |
… | |
2142 | ALIAS: |
3179 | ALIAS: |
2143 | is_ready = CF_READY |
3180 | is_ready = CF_READY |
2144 | is_running = CF_RUNNING |
3181 | is_running = CF_RUNNING |
2145 | is_new = CF_NEW |
3182 | is_new = CF_NEW |
2146 | is_destroyed = CF_DESTROYED |
3183 | is_destroyed = CF_DESTROYED |
|
|
3184 | is_suspended = CF_SUSPENDED |
2147 | CODE: |
3185 | CODE: |
2148 | RETVAL = boolSV (coro->flags & ix); |
3186 | RETVAL = boolSV (coro->flags & ix); |
2149 | OUTPUT: |
3187 | OUTPUT: |
2150 | RETVAL |
3188 | RETVAL |
2151 | |
3189 | |
2152 | void |
3190 | void |
2153 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3191 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2154 | PROTOTYPE: $;$ |
3192 | PROTOTYPE: $;$ |
2155 | CODE: |
3193 | CODE: |
|
|
3194 | { |
|
|
3195 | struct coro *current = SvSTATE_current; |
|
|
3196 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
2156 | SvREFCNT_dec (self->throw); |
3197 | SvREFCNT_dec (*throwp); |
|
|
3198 | SvGETMAGIC (throw); |
2157 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
3199 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3200 | } |
2158 | |
3201 | |
2159 | void |
3202 | void |
2160 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3203 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3204 | PROTOTYPE: $;$ |
|
|
3205 | C_ARGS: aTHX_ coro, flags |
2161 | |
3206 | |
2162 | SV * |
3207 | SV * |
2163 | has_cctx (Coro::State coro) |
3208 | has_cctx (Coro::State coro) |
2164 | PROTOTYPE: $ |
3209 | PROTOTYPE: $ |
2165 | CODE: |
3210 | CODE: |
2166 | RETVAL = boolSV (!!coro->cctx); |
3211 | /* maybe manage the running flag differently */ |
|
|
3212 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2167 | OUTPUT: |
3213 | OUTPUT: |
2168 | RETVAL |
3214 | RETVAL |
2169 | |
3215 | |
2170 | int |
3216 | int |
2171 | is_traced (Coro::State coro) |
3217 | is_traced (Coro::State coro) |
… | |
… | |
2189 | OUTPUT: |
3235 | OUTPUT: |
2190 | RETVAL |
3236 | RETVAL |
2191 | |
3237 | |
2192 | void |
3238 | void |
2193 | force_cctx () |
3239 | force_cctx () |
|
|
3240 | PROTOTYPE: |
2194 | CODE: |
3241 | CODE: |
2195 | struct coro *coro = SvSTATE (coro_current); |
|
|
2196 | coro->cctx->idle_sp = 0; |
3242 | cctx_current->idle_sp = 0; |
2197 | |
3243 | |
2198 | void |
3244 | void |
2199 | swap_defsv (Coro::State self) |
3245 | swap_defsv (Coro::State self) |
2200 | PROTOTYPE: $ |
3246 | PROTOTYPE: $ |
2201 | ALIAS: |
3247 | ALIAS: |
2202 | swap_defav = 1 |
3248 | swap_defav = 1 |
2203 | CODE: |
3249 | CODE: |
2204 | if (!self->slot) |
3250 | if (!self->slot) |
2205 | croak ("cannot swap state with coroutine that has no saved state"); |
3251 | croak ("cannot swap state with coroutine that has no saved state,"); |
2206 | else |
3252 | else |
2207 | { |
3253 | { |
2208 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3254 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2209 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3255 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2210 | |
3256 | |
2211 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3257 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2212 | } |
3258 | } |
2213 | |
3259 | |
|
|
3260 | void |
|
|
3261 | cancel (Coro::State self) |
|
|
3262 | CODE: |
|
|
3263 | coro_state_destroy (aTHX_ self); |
|
|
3264 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3265 | |
|
|
3266 | |
2214 | MODULE = Coro::State PACKAGE = Coro |
3267 | MODULE = Coro::State PACKAGE = Coro |
2215 | |
3268 | |
2216 | BOOT: |
3269 | BOOT: |
2217 | { |
3270 | { |
2218 | int i; |
|
|
2219 | |
|
|
2220 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2221 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3271 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2222 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3272 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2223 | |
3273 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3274 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2224 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3275 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2225 | SvREADONLY_on (coro_current); |
3276 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3277 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3278 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3279 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
3280 | |
|
|
3281 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3282 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3283 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3284 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2226 | |
3285 | |
2227 | coro_stash = gv_stashpv ("Coro", TRUE); |
3286 | coro_stash = gv_stashpv ("Coro", TRUE); |
2228 | |
3287 | |
2229 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3288 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
2230 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3289 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
2231 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3290 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
2232 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3291 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
2233 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3292 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
2234 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3293 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
2235 | |
|
|
2236 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2237 | coro_ready[i] = newAV (); |
|
|
2238 | |
3294 | |
2239 | { |
3295 | { |
2240 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3296 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2241 | |
3297 | |
2242 | coroapi.schedule = api_schedule; |
3298 | coroapi.schedule = api_schedule; |
|
|
3299 | coroapi.schedule_to = api_schedule_to; |
2243 | coroapi.cede = api_cede; |
3300 | coroapi.cede = api_cede; |
2244 | coroapi.cede_notself = api_cede_notself; |
3301 | coroapi.cede_notself = api_cede_notself; |
2245 | coroapi.ready = api_ready; |
3302 | coroapi.ready = api_ready; |
2246 | coroapi.is_ready = api_is_ready; |
3303 | coroapi.is_ready = api_is_ready; |
2247 | coroapi.nready = &coro_nready; |
3304 | coroapi.nready = coro_nready; |
2248 | coroapi.current = coro_current; |
3305 | coroapi.current = coro_current; |
2249 | |
3306 | |
2250 | GCoroAPI = &coroapi; |
3307 | /*GCoroAPI = &coroapi;*/ |
2251 | sv_setiv (sv, (IV)&coroapi); |
3308 | sv_setiv (sv, (IV)&coroapi); |
2252 | SvREADONLY_on (sv); |
3309 | SvREADONLY_on (sv); |
2253 | } |
3310 | } |
2254 | } |
3311 | } |
|
|
3312 | |
|
|
3313 | void |
|
|
3314 | terminate (...) |
|
|
3315 | CODE: |
|
|
3316 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3317 | |
|
|
3318 | void |
|
|
3319 | schedule (...) |
|
|
3320 | CODE: |
|
|
3321 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3322 | |
|
|
3323 | void |
|
|
3324 | schedule_to (...) |
|
|
3325 | CODE: |
|
|
3326 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3327 | |
|
|
3328 | void |
|
|
3329 | cede_to (...) |
|
|
3330 | CODE: |
|
|
3331 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3332 | |
|
|
3333 | void |
|
|
3334 | cede (...) |
|
|
3335 | CODE: |
|
|
3336 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3337 | |
|
|
3338 | void |
|
|
3339 | cede_notself (...) |
|
|
3340 | CODE: |
|
|
3341 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2255 | |
3342 | |
2256 | void |
3343 | void |
2257 | _set_current (SV *current) |
3344 | _set_current (SV *current) |
2258 | PROTOTYPE: $ |
3345 | PROTOTYPE: $ |
2259 | CODE: |
3346 | CODE: |
… | |
… | |
2262 | |
3349 | |
2263 | void |
3350 | void |
2264 | _set_readyhook (SV *hook) |
3351 | _set_readyhook (SV *hook) |
2265 | PROTOTYPE: $ |
3352 | PROTOTYPE: $ |
2266 | CODE: |
3353 | CODE: |
2267 | LOCK; |
|
|
2268 | SvREFCNT_dec (coro_readyhook); |
3354 | SvREFCNT_dec (coro_readyhook); |
|
|
3355 | SvGETMAGIC (hook); |
2269 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3356 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2270 | UNLOCK; |
|
|
2271 | |
3357 | |
2272 | int |
3358 | int |
2273 | prio (Coro::State coro, int newprio = 0) |
3359 | prio (Coro::State coro, int newprio = 0) |
|
|
3360 | PROTOTYPE: $;$ |
2274 | ALIAS: |
3361 | ALIAS: |
2275 | nice = 1 |
3362 | nice = 1 |
2276 | CODE: |
3363 | CODE: |
2277 | { |
3364 | { |
2278 | RETVAL = coro->prio; |
3365 | RETVAL = coro->prio; |
… | |
… | |
2293 | |
3380 | |
2294 | SV * |
3381 | SV * |
2295 | ready (SV *self) |
3382 | ready (SV *self) |
2296 | PROTOTYPE: $ |
3383 | PROTOTYPE: $ |
2297 | CODE: |
3384 | CODE: |
2298 | RETVAL = boolSV (api_ready (self)); |
3385 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2299 | OUTPUT: |
3386 | OUTPUT: |
2300 | RETVAL |
3387 | RETVAL |
2301 | |
3388 | |
2302 | int |
3389 | int |
2303 | nready (...) |
3390 | nready (...) |
… | |
… | |
2305 | CODE: |
3392 | CODE: |
2306 | RETVAL = coro_nready; |
3393 | RETVAL = coro_nready; |
2307 | OUTPUT: |
3394 | OUTPUT: |
2308 | RETVAL |
3395 | RETVAL |
2309 | |
3396 | |
2310 | # for async_pool speedup |
|
|
2311 | void |
3397 | void |
2312 | _pool_1 (SV *cb) |
3398 | suspend (Coro::State self) |
|
|
3399 | PROTOTYPE: $ |
2313 | CODE: |
3400 | CODE: |
2314 | { |
3401 | self->flags |= CF_SUSPENDED; |
2315 | struct coro *coro = SvSTATE (coro_current); |
|
|
2316 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2317 | AV *defav = GvAV (PL_defgv); |
|
|
2318 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2319 | AV *invoke_av; |
|
|
2320 | int i, len; |
|
|
2321 | |
3402 | |
2322 | if (!invoke) |
3403 | void |
|
|
3404 | resume (Coro::State self) |
|
|
3405 | PROTOTYPE: $ |
|
|
3406 | CODE: |
|
|
3407 | self->flags &= ~CF_SUSPENDED; |
|
|
3408 | |
|
|
3409 | void |
|
|
3410 | _pool_handler (...) |
|
|
3411 | CODE: |
|
|
3412 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3413 | |
|
|
3414 | void |
|
|
3415 | async_pool (SV *cv, ...) |
|
|
3416 | PROTOTYPE: &@ |
|
|
3417 | PPCODE: |
|
|
3418 | { |
|
|
3419 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3420 | AV *av = newAV (); |
|
|
3421 | SV *cb = ST (0); |
|
|
3422 | int i; |
|
|
3423 | |
|
|
3424 | av_extend (av, items - 2); |
|
|
3425 | for (i = 1; i < items; ++i) |
|
|
3426 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3427 | |
|
|
3428 | if ((SV *)hv == &PL_sv_undef) |
2323 | { |
3429 | { |
2324 | SV *old = PL_diehook; |
3430 | PUSHMARK (SP); |
2325 | PL_diehook = 0; |
3431 | EXTEND (SP, 2); |
2326 | SvREFCNT_dec (old); |
3432 | PUSHs (sv_Coro); |
2327 | croak ("\3async_pool terminate\2\n"); |
3433 | PUSHs ((SV *)cv_pool_handler); |
|
|
3434 | PUTBACK; |
|
|
3435 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3436 | SPAGAIN; |
|
|
3437 | |
|
|
3438 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
2328 | } |
3439 | } |
2329 | |
3440 | |
2330 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2331 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2332 | |
|
|
2333 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2334 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2335 | |
|
|
2336 | invoke_av = (AV *)SvRV (invoke); |
|
|
2337 | len = av_len (invoke_av); |
|
|
2338 | |
|
|
2339 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2340 | |
|
|
2341 | if (len > 0) |
|
|
2342 | { |
3441 | { |
2343 | av_fill (defav, len - 1); |
3442 | struct coro *coro = SvSTATE_hv (hv); |
2344 | for (i = 0; i < len; ++i) |
3443 | |
2345 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
3444 | assert (!coro->invoke_cb); |
|
|
3445 | assert (!coro->invoke_av); |
|
|
3446 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3447 | coro->invoke_av = av; |
2346 | } |
3448 | } |
2347 | |
3449 | |
|
|
3450 | api_ready (aTHX_ (SV *)hv); |
|
|
3451 | |
|
|
3452 | if (GIMME_V != G_VOID) |
|
|
3453 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3454 | else |
2348 | SvREFCNT_dec (invoke); |
3455 | SvREFCNT_dec (hv); |
2349 | } |
3456 | } |
2350 | |
3457 | |
2351 | void |
3458 | SV * |
2352 | _pool_2 (SV *cb) |
3459 | rouse_cb () |
|
|
3460 | PROTOTYPE: |
2353 | CODE: |
3461 | CODE: |
2354 | { |
3462 | RETVAL = coro_new_rouse_cb (aTHX); |
2355 | struct coro *coro = SvSTATE (coro_current); |
|
|
2356 | |
|
|
2357 | sv_setsv (cb, &PL_sv_undef); |
|
|
2358 | |
|
|
2359 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2360 | coro->saved_deffh = 0; |
|
|
2361 | |
|
|
2362 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2363 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2364 | { |
|
|
2365 | SV *old = PL_diehook; |
|
|
2366 | PL_diehook = 0; |
|
|
2367 | SvREFCNT_dec (old); |
|
|
2368 | croak ("\3async_pool terminate\2\n"); |
|
|
2369 | } |
|
|
2370 | |
|
|
2371 | av_clear (GvAV (PL_defgv)); |
|
|
2372 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2373 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2374 | |
|
|
2375 | coro->prio = 0; |
|
|
2376 | |
|
|
2377 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2378 | api_trace (coro_current, 0); |
|
|
2379 | |
|
|
2380 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2381 | } |
|
|
2382 | |
|
|
2383 | #if 0 |
|
|
2384 | |
|
|
2385 | void |
|
|
2386 | _generator_call (...) |
|
|
2387 | PROTOTYPE: @ |
|
|
2388 | PPCODE: |
|
|
2389 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2390 | xxxx |
|
|
2391 | abort (); |
|
|
2392 | |
|
|
2393 | SV * |
|
|
2394 | gensub (SV *sub, ...) |
|
|
2395 | PROTOTYPE: &;@ |
|
|
2396 | CODE: |
|
|
2397 | { |
|
|
2398 | struct coro *coro; |
|
|
2399 | MAGIC *mg; |
|
|
2400 | CV *xcv; |
|
|
2401 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2402 | int i; |
|
|
2403 | |
|
|
2404 | CvGV (ncv) = CvGV (cv); |
|
|
2405 | CvFILE (ncv) = CvFILE (cv); |
|
|
2406 | |
|
|
2407 | Newz (0, coro, 1, struct coro); |
|
|
2408 | coro->args = newAV (); |
|
|
2409 | coro->flags = CF_NEW; |
|
|
2410 | |
|
|
2411 | av_extend (coro->args, items - 1); |
|
|
2412 | for (i = 1; i < items; i++) |
|
|
2413 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2414 | |
|
|
2415 | CvISXSUB_on (ncv); |
|
|
2416 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2417 | |
|
|
2418 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2419 | |
|
|
2420 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2421 | CvANON_on (ncv); |
|
|
2422 | |
|
|
2423 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2424 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2425 | } |
|
|
2426 | OUTPUT: |
3463 | OUTPUT: |
2427 | RETVAL |
3464 | RETVAL |
2428 | |
3465 | |
2429 | #endif |
|
|
2430 | |
|
|
2431 | |
|
|
2432 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2433 | |
|
|
2434 | void |
3466 | void |
2435 | _get_state (SV *self) |
3467 | rouse_wait (...) |
|
|
3468 | PROTOTYPE: ;$ |
2436 | PPCODE: |
3469 | PPCODE: |
2437 | { |
3470 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2438 | AV *defav = GvAV (PL_defgv); |
|
|
2439 | AV *av = newAV (); |
|
|
2440 | int i; |
|
|
2441 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2442 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2443 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2444 | SvPOK_only (data_sv); |
|
|
2445 | |
|
|
2446 | data->errorno = errno; |
|
|
2447 | data->laststype = PL_laststype; |
|
|
2448 | data->laststatval = PL_laststatval; |
|
|
2449 | data->statcache = PL_statcache; |
|
|
2450 | |
|
|
2451 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2452 | |
|
|
2453 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2454 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2455 | |
|
|
2456 | av_push (av, data_sv); |
|
|
2457 | |
|
|
2458 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2459 | |
|
|
2460 | api_ready (self); |
|
|
2461 | } |
|
|
2462 | |
3471 | |
2463 | void |
3472 | void |
2464 | _set_state (SV *state) |
3473 | on_enter (SV *block) |
|
|
3474 | ALIAS: |
|
|
3475 | on_leave = 1 |
2465 | PROTOTYPE: $ |
3476 | PROTOTYPE: & |
|
|
3477 | CODE: |
|
|
3478 | { |
|
|
3479 | struct coro *coro = SvSTATE_current; |
|
|
3480 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
|
|
3481 | |
|
|
3482 | block = (SV *)coro_sv_2cv (aTHX_ block); |
|
|
3483 | |
|
|
3484 | if (!*avp) |
|
|
3485 | *avp = newAV (); |
|
|
3486 | |
|
|
3487 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
3488 | |
|
|
3489 | if (!ix) |
|
|
3490 | on_enterleave_call (aTHX_ block); |
|
|
3491 | |
|
|
3492 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3493 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
3494 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3495 | } |
|
|
3496 | |
|
|
3497 | |
|
|
3498 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3499 | |
|
|
3500 | BOOT: |
|
|
3501 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3502 | |
|
|
3503 | |
|
|
3504 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3505 | |
|
|
3506 | SV * |
|
|
3507 | new (SV *klass, SV *count = 0) |
|
|
3508 | CODE: |
|
|
3509 | { |
|
|
3510 | int semcnt = 1; |
|
|
3511 | |
|
|
3512 | if (count) |
|
|
3513 | { |
|
|
3514 | SvGETMAGIC (count); |
|
|
3515 | |
|
|
3516 | if (SvOK (count)) |
|
|
3517 | semcnt = SvIV (count); |
|
|
3518 | } |
|
|
3519 | |
|
|
3520 | RETVAL = sv_bless ( |
|
|
3521 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3522 | GvSTASH (CvGV (cv)) |
|
|
3523 | ); |
|
|
3524 | } |
|
|
3525 | OUTPUT: |
|
|
3526 | RETVAL |
|
|
3527 | |
|
|
3528 | # helper for Coro::Channel and others |
|
|
3529 | SV * |
|
|
3530 | _alloc (int count) |
|
|
3531 | CODE: |
|
|
3532 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3533 | OUTPUT: |
|
|
3534 | RETVAL |
|
|
3535 | |
|
|
3536 | SV * |
|
|
3537 | count (SV *self) |
|
|
3538 | CODE: |
|
|
3539 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3540 | OUTPUT: |
|
|
3541 | RETVAL |
|
|
3542 | |
|
|
3543 | void |
|
|
3544 | up (SV *self, int adjust = 1) |
|
|
3545 | ALIAS: |
|
|
3546 | adjust = 1 |
|
|
3547 | CODE: |
|
|
3548 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3549 | |
|
|
3550 | void |
|
|
3551 | down (...) |
|
|
3552 | CODE: |
|
|
3553 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3554 | |
|
|
3555 | void |
|
|
3556 | wait (...) |
|
|
3557 | CODE: |
|
|
3558 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3559 | |
|
|
3560 | void |
|
|
3561 | try (SV *self) |
|
|
3562 | PPCODE: |
|
|
3563 | { |
|
|
3564 | AV *av = (AV *)SvRV (self); |
|
|
3565 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3566 | IV count = SvIVX (count_sv); |
|
|
3567 | |
|
|
3568 | if (count > 0) |
|
|
3569 | { |
|
|
3570 | --count; |
|
|
3571 | SvIVX (count_sv) = count; |
|
|
3572 | XSRETURN_YES; |
|
|
3573 | } |
|
|
3574 | else |
|
|
3575 | XSRETURN_NO; |
|
|
3576 | } |
|
|
3577 | |
|
|
3578 | void |
|
|
3579 | waiters (SV *self) |
|
|
3580 | PPCODE: |
|
|
3581 | { |
|
|
3582 | AV *av = (AV *)SvRV (self); |
|
|
3583 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3584 | |
|
|
3585 | if (GIMME_V == G_SCALAR) |
|
|
3586 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3587 | else |
|
|
3588 | { |
|
|
3589 | int i; |
|
|
3590 | EXTEND (SP, wcount); |
|
|
3591 | for (i = 1; i <= wcount; ++i) |
|
|
3592 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3593 | } |
|
|
3594 | } |
|
|
3595 | |
|
|
3596 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
3597 | |
|
|
3598 | void |
|
|
3599 | _may_delete (SV *sem, int count, int extra_refs) |
2466 | PPCODE: |
3600 | PPCODE: |
2467 | { |
3601 | { |
2468 | AV *av = (AV *)SvRV (state); |
3602 | AV *av = (AV *)SvRV (sem); |
2469 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2470 | int i; |
|
|
2471 | |
3603 | |
2472 | errno = data->errorno; |
3604 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
2473 | PL_laststype = data->laststype; |
3605 | && AvFILLp (av) == 0 /* no waiters, just count */ |
2474 | PL_laststatval = data->laststatval; |
3606 | && SvIV (AvARRAY (av)[0]) == count) |
2475 | PL_statcache = data->statcache; |
3607 | XSRETURN_YES; |
2476 | |
3608 | |
|
|
3609 | XSRETURN_NO; |
|
|
3610 | } |
|
|
3611 | |
|
|
3612 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3613 | |
|
|
3614 | SV * |
|
|
3615 | new (SV *klass) |
|
|
3616 | CODE: |
|
|
3617 | RETVAL = sv_bless ( |
|
|
3618 | coro_waitarray_new (aTHX_ 0), |
|
|
3619 | GvSTASH (CvGV (cv)) |
|
|
3620 | ); |
|
|
3621 | OUTPUT: |
|
|
3622 | RETVAL |
|
|
3623 | |
|
|
3624 | void |
|
|
3625 | wait (...) |
|
|
3626 | CODE: |
|
|
3627 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3628 | |
|
|
3629 | void |
|
|
3630 | broadcast (SV *self) |
|
|
3631 | CODE: |
|
|
3632 | { |
|
|
3633 | AV *av = (AV *)SvRV (self); |
|
|
3634 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3635 | } |
|
|
3636 | |
|
|
3637 | void |
|
|
3638 | send (SV *self) |
|
|
3639 | CODE: |
|
|
3640 | { |
|
|
3641 | AV *av = (AV *)SvRV (self); |
|
|
3642 | |
2477 | EXTEND (SP, AvFILLp (av)); |
3643 | if (AvFILLp (av)) |
2478 | for (i = 0; i < AvFILLp (av); ++i) |
3644 | coro_signal_wake (aTHX_ av, 1); |
2479 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
3645 | else |
|
|
3646 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2480 | } |
3647 | } |
|
|
3648 | |
|
|
3649 | IV |
|
|
3650 | awaited (SV *self) |
|
|
3651 | CODE: |
|
|
3652 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3653 | OUTPUT: |
|
|
3654 | RETVAL |
2481 | |
3655 | |
2482 | |
3656 | |
2483 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3657 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2484 | |
3658 | |
2485 | BOOT: |
3659 | BOOT: |
2486 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3660 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2487 | |
3661 | |
2488 | SV * |
3662 | void |
2489 | _schedule (...) |
3663 | _schedule (...) |
2490 | PROTOTYPE: @ |
|
|
2491 | CODE: |
3664 | CODE: |
2492 | { |
3665 | { |
2493 | static int incede; |
3666 | static int incede; |
2494 | |
3667 | |
2495 | api_cede_notself (); |
3668 | api_cede_notself (aTHX); |
2496 | |
3669 | |
2497 | ++incede; |
3670 | ++incede; |
2498 | while (coro_nready >= incede && api_cede ()) |
3671 | while (coro_nready >= incede && api_cede (aTHX)) |
2499 | ; |
3672 | ; |
2500 | |
3673 | |
2501 | sv_setsv (sv_activity, &PL_sv_undef); |
3674 | sv_setsv (sv_activity, &PL_sv_undef); |
2502 | if (coro_nready >= incede) |
3675 | if (coro_nready >= incede) |
2503 | { |
3676 | { |
2504 | PUSHMARK (SP); |
3677 | PUSHMARK (SP); |
2505 | PUTBACK; |
3678 | PUTBACK; |
2506 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3679 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2507 | SPAGAIN; |
|
|
2508 | } |
3680 | } |
2509 | |
3681 | |
2510 | --incede; |
3682 | --incede; |
2511 | } |
3683 | } |
2512 | |
3684 | |
2513 | |
3685 | |
2514 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3686 | MODULE = Coro::State PACKAGE = Coro::AIO |
2515 | |
3687 | |
2516 | BOOT: |
3688 | void |
2517 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3689 | _register (char *target, char *proto, SV *req) |
|
|
3690 | CODE: |
|
|
3691 | { |
|
|
3692 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3693 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3694 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3695 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3696 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3697 | } |
2518 | |
3698 | |