… | |
… | |
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 |
… | |
… | |
46 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
47 | #endif |
47 | #endif |
48 | |
48 | |
49 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
50 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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52 | #else |
|
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53 | # define REGISTER_STACK(cctx,start,end) |
|
|
54 | #endif |
51 | #endif |
55 | |
52 | |
56 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
57 | static int cctx_max_idle = 4; |
54 | static int cctx_max_idle = 4; |
58 | |
55 | |
59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
60 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
61 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
62 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
63 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
60 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
64 | |
61 | |
65 | #if !PERL_VERSION_ATLEAST (5,6,0) |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
66 | # ifndef PL_ppaddr |
63 | # ifndef PL_ppaddr |
67 | # define PL_ppaddr ppaddr |
64 | # define PL_ppaddr ppaddr |
68 | # endif |
65 | # endif |
… | |
… | |
98 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
99 | #endif |
96 | #endif |
100 | #ifndef newSV |
97 | #ifndef newSV |
101 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
102 | #endif |
99 | #endif |
|
|
100 | #ifndef CvISXSUB_on |
|
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101 | # define CvISXSUB_on(cv) (void)cv |
|
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102 | #endif |
|
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103 | #ifndef CvISXSUB |
|
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104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
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105 | #endif |
103 | |
106 | |
104 | /* 5.8.7 */ |
107 | /* 5.8.7 */ |
105 | #ifndef SvRV_set |
108 | #ifndef SvRV_set |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
109 | # define SvRV_set(s,v) SvRV(s) = (v) |
107 | #endif |
110 | #endif |
… | |
… | |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
122 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
120 | #endif |
123 | #endif |
121 | |
124 | |
122 | /* The next macros try to return the current stack pointer, in an as |
125 | /* The next macros try to return the current stack pointer, in an as |
123 | * portable way as possible. */ |
126 | * portable way as possible. */ |
|
|
127 | #if __GNUC__ >= 4 |
|
|
128 | # define dSTACKLEVEL int stacklevel_dummy |
|
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129 | # define STACKLEVEL __builtin_frame_address (0) |
|
|
130 | #else |
124 | #define dSTACKLEVEL volatile char stacklevel |
131 | # define dSTACKLEVEL volatile void *stacklevel |
125 | #define STACKLEVEL ((void *)&stacklevel) |
132 | # define STACKLEVEL ((void *)&stacklevel) |
|
|
133 | #endif |
126 | |
134 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
135 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
128 | |
136 | |
129 | #if __GNUC__ >= 3 |
137 | #if __GNUC__ >= 3 |
130 | # define attribute(x) __attribute__(x) |
138 | # define attribute(x) __attribute__(x) |
131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
139 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
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140 | # define INLINE static inline |
133 | #else |
141 | #else |
134 | # define attribute(x) |
142 | # define attribute(x) |
135 | # define BARRIER |
|
|
136 | # define expect(expr,value) (expr) |
143 | # define expect(expr,value) (expr) |
|
|
144 | # define INLINE static |
137 | #endif |
145 | #endif |
138 | |
146 | |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
147 | #define expect_false(expr) expect ((expr) != 0, 0) |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
148 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
149 | |
142 | #define NOINLINE attribute ((noinline)) |
150 | #define NOINLINE attribute ((noinline)) |
143 | |
151 | |
144 | #include "CoroAPI.h" |
152 | #include "CoroAPI.h" |
|
|
153 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
154 | |
146 | #ifdef USE_ITHREADS |
155 | #ifdef USE_ITHREADS |
147 | static perl_mutex coro_lock; |
156 | # if CORO_PTHREAD |
148 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
157 | static void *coro_thx; |
149 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
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150 | #else |
|
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151 | # define LOCK (void)0 |
|
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152 | # define UNLOCK (void)0 |
|
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153 | #endif |
158 | # endif |
154 | |
159 | #endif |
155 | /* helper storage struct for Coro::AIO */ |
|
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156 | struct io_state |
|
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157 | { |
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158 | AV *res; |
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159 | int errorno; |
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160 | I32 laststype; /* U16 in 5.10.0 */ |
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161 | int laststatval; |
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162 | Stat_t statcache; |
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163 | }; |
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164 | |
160 | |
165 | static double (*nvtime)(); /* so why doesn't it take void? */ |
161 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
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162 | |
|
|
163 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
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164 | #define CVf_SLF 0x4000 |
|
|
165 | static OP *pp_slf (pTHX); |
166 | |
166 | |
167 | static U32 cctx_gen; |
167 | static U32 cctx_gen; |
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
169 | static struct CoroAPI coroapi; |
169 | static struct CoroAPI coroapi; |
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
… | |
… | |
179 | static HV *hv_sig; /* %SIG */ |
179 | static HV *hv_sig; /* %SIG */ |
180 | |
180 | |
181 | /* async_pool helper stuff */ |
181 | /* async_pool helper stuff */ |
182 | static SV *sv_pool_rss; |
182 | static SV *sv_pool_rss; |
183 | static SV *sv_pool_size; |
183 | static SV *sv_pool_size; |
|
|
184 | static SV *sv_async_pool_idle; |
184 | static AV *av_async_pool; |
185 | static AV *av_async_pool; |
|
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186 | static SV *sv_Coro; |
|
|
187 | static CV *cv_pool_handler; |
|
|
188 | static CV *cv_coro_state_new; |
185 | |
189 | |
186 | /* Coro::AnyEvent */ |
190 | /* Coro::AnyEvent */ |
187 | static SV *sv_activity; |
191 | static SV *sv_activity; |
188 | |
192 | |
189 | static struct coro_cctx *cctx_first; |
193 | static struct coro_cctx *cctx_first; |
… | |
… | |
197 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
201 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
198 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
202 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
199 | }; |
203 | }; |
200 | |
204 | |
201 | /* this is a structure representing a c-level coroutine */ |
205 | /* this is a structure representing a c-level coroutine */ |
202 | typedef struct coro_cctx { |
206 | typedef struct coro_cctx |
|
|
207 | { |
203 | struct coro_cctx *next; |
208 | struct coro_cctx *next; |
204 | |
209 | |
205 | /* the stack */ |
210 | /* the stack */ |
206 | void *sptr; |
211 | void *sptr; |
207 | size_t ssize; |
212 | size_t ssize; |
… | |
… | |
225 | CF_NEW = 0x0004, /* has never been switched to */ |
230 | CF_NEW = 0x0004, /* has never been switched to */ |
226 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
231 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
227 | }; |
232 | }; |
228 | |
233 | |
229 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
234 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
230 | typedef struct { |
235 | typedef struct |
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|
236 | { |
231 | SV *defsv; |
237 | SV *defsv; |
232 | AV *defav; |
238 | AV *defav; |
233 | SV *errsv; |
239 | SV *errsv; |
234 | SV *irsgv; |
240 | SV *irsgv; |
235 | #define VAR(name,type) type name; |
241 | #define VAR(name,type) type name; |
… | |
… | |
239 | |
245 | |
240 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
246 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
241 | |
247 | |
242 | /* this is a structure representing a perl-level coroutine */ |
248 | /* this is a structure representing a perl-level coroutine */ |
243 | struct coro { |
249 | struct coro { |
244 | /* the c coroutine allocated to this perl coroutine, if any */ |
250 | /* the C coroutine allocated to this perl coroutine, if any */ |
245 | coro_cctx *cctx; |
251 | coro_cctx *cctx; |
246 | |
252 | |
247 | /* process data */ |
253 | /* state data */ |
|
|
254 | struct CoroSLF slf_frame; /* saved slf frame */ |
248 | AV *mainstack; |
255 | AV *mainstack; |
249 | perl_slots *slot; /* basically the saved sp */ |
256 | perl_slots *slot; /* basically the saved sp */ |
250 | |
257 | |
|
|
258 | CV *startcv; /* the CV to execute */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
259 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
260 | int refcnt; /* coroutines are refcounted, yes */ |
253 | int flags; /* CF_ flags */ |
261 | int flags; /* CF_ flags */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
262 | HV *hv; /* the perl hash associated with this coro, if any */ |
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|
263 | void (*on_destroy)(pTHX_ struct coro *coro); |
255 | |
264 | |
256 | /* statistics */ |
265 | /* statistics */ |
257 | int usecount; /* number of transfers to this coro */ |
266 | int usecount; /* number of transfers to this coro */ |
258 | |
267 | |
259 | /* coro process data */ |
268 | /* coro process data */ |
260 | int prio; |
269 | int prio; |
261 | SV *throw; /* exception to be thrown */ |
270 | SV *except; /* exception to be thrown */ |
|
|
271 | SV *rouse_cb; |
262 | |
272 | |
263 | /* async_pool */ |
273 | /* async_pool */ |
264 | SV *saved_deffh; |
274 | SV *saved_deffh; |
|
|
275 | SV *invoke_cb; |
|
|
276 | AV *invoke_av; |
265 | |
277 | |
266 | /* linked list */ |
278 | /* linked list */ |
267 | struct coro *next, *prev; |
279 | struct coro *next, *prev; |
268 | }; |
280 | }; |
269 | |
281 | |
270 | typedef struct coro *Coro__State; |
282 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State_or_hashref; |
283 | typedef struct coro *Coro__State_or_hashref; |
|
|
284 | |
|
|
285 | /* the following variables are effectively part of the perl context */ |
|
|
286 | /* and get copied between struct coro and these variables */ |
|
|
287 | /* the mainr easonw e don't support windows process emulation */ |
|
|
288 | static struct CoroSLF slf_frame; /* the current slf frame */ |
272 | |
289 | |
273 | /** Coro ********************************************************************/ |
290 | /** Coro ********************************************************************/ |
274 | |
291 | |
275 | #define PRIO_MAX 3 |
292 | #define PRIO_MAX 3 |
276 | #define PRIO_HIGH 1 |
293 | #define PRIO_HIGH 1 |
… | |
… | |
280 | #define PRIO_MIN -4 |
297 | #define PRIO_MIN -4 |
281 | |
298 | |
282 | /* for Coro.pm */ |
299 | /* for Coro.pm */ |
283 | static SV *coro_current; |
300 | static SV *coro_current; |
284 | static SV *coro_readyhook; |
301 | static SV *coro_readyhook; |
285 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
302 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
286 | static int coro_nready; |
303 | static CV *cv_coro_run, *cv_coro_terminate; |
287 | static struct coro *coro_first; |
304 | static struct coro *coro_first; |
|
|
305 | #define coro_nready coroapi.nready |
288 | |
306 | |
289 | /** lowlevel stuff **********************************************************/ |
307 | /** lowlevel stuff **********************************************************/ |
290 | |
308 | |
291 | static SV * |
309 | static SV * |
292 | coro_get_sv (pTHX_ const char *name, int create) |
310 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
314 | #if PERL_VERSION_ATLEAST (5,10,0) |
332 | #if PERL_VERSION_ATLEAST (5,10,0) |
315 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
333 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
316 | get_hv (name, create); |
334 | get_hv (name, create); |
317 | #endif |
335 | #endif |
318 | return get_hv (name, create); |
336 | return get_hv (name, create); |
|
|
337 | } |
|
|
338 | |
|
|
339 | /* may croak */ |
|
|
340 | INLINE CV * |
|
|
341 | coro_sv_2cv (pTHX_ SV *sv) |
|
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342 | { |
|
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343 | HV *st; |
|
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344 | GV *gvp; |
|
|
345 | return sv_2cv (sv, &st, &gvp, 0); |
319 | } |
346 | } |
320 | |
347 | |
321 | static AV * |
348 | static AV * |
322 | coro_clone_padlist (pTHX_ CV *cv) |
349 | coro_clone_padlist (pTHX_ CV *cv) |
323 | { |
350 | { |
… | |
… | |
377 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
404 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
378 | |
405 | |
379 | return 0; |
406 | return 0; |
380 | } |
407 | } |
381 | |
408 | |
382 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
409 | #define CORO_MAGIC_type_cv 26 |
383 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
410 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
384 | |
411 | |
385 | static MGVTBL coro_cv_vtbl = { |
412 | static MGVTBL coro_cv_vtbl = { |
386 | 0, 0, 0, 0, |
413 | 0, 0, 0, 0, |
387 | coro_cv_free |
414 | coro_cv_free |
388 | }; |
415 | }; |
389 | |
416 | |
|
|
417 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
418 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
419 | ? SvMAGIC (sv) \ |
|
|
420 | : mg_find (sv, type)) |
|
|
421 | |
390 | #define CORO_MAGIC(sv, type) \ |
422 | #define CORO_MAGIC(sv, type) \ |
391 | SvMAGIC (sv) \ |
423 | (expect_true (SvMAGIC (sv)) \ |
392 | ? SvMAGIC (sv)->mg_type == type \ |
424 | ? CORO_MAGIC_NN (sv, type) \ |
393 | ? SvMAGIC (sv) \ |
|
|
394 | : mg_find (sv, type) \ |
|
|
395 | : 0 |
425 | : 0) |
396 | |
426 | |
397 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
427 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
398 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
428 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
399 | |
429 | |
400 | static struct coro * |
430 | INLINE struct coro * |
401 | SvSTATE_ (pTHX_ SV *coro) |
431 | SvSTATE_ (pTHX_ SV *coro) |
402 | { |
432 | { |
403 | HV *stash; |
433 | HV *stash; |
404 | MAGIC *mg; |
434 | MAGIC *mg; |
405 | |
435 | |
… | |
… | |
420 | mg = CORO_MAGIC_state (coro); |
450 | mg = CORO_MAGIC_state (coro); |
421 | return (struct coro *)mg->mg_ptr; |
451 | return (struct coro *)mg->mg_ptr; |
422 | } |
452 | } |
423 | |
453 | |
424 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
454 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
455 | |
|
|
456 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
457 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
458 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
425 | |
459 | |
426 | /* the next two functions merely cache the padlists */ |
460 | /* the next two functions merely cache the padlists */ |
427 | static void |
461 | static void |
428 | get_padlist (pTHX_ CV *cv) |
462 | get_padlist (pTHX_ CV *cv) |
429 | { |
463 | { |
… | |
… | |
435 | else |
469 | else |
436 | { |
470 | { |
437 | #if CORO_PREFER_PERL_FUNCTIONS |
471 | #if CORO_PREFER_PERL_FUNCTIONS |
438 | /* this is probably cleaner? but also slower! */ |
472 | /* this is probably cleaner? but also slower! */ |
439 | /* in practise, it seems to be less stable */ |
473 | /* in practise, it seems to be less stable */ |
440 | CV *cp = Perl_cv_clone (cv); |
474 | CV *cp = Perl_cv_clone (aTHX_ cv); |
441 | CvPADLIST (cv) = CvPADLIST (cp); |
475 | CvPADLIST (cv) = CvPADLIST (cp); |
442 | CvPADLIST (cp) = 0; |
476 | CvPADLIST (cp) = 0; |
443 | SvREFCNT_dec (cp); |
477 | SvREFCNT_dec (cp); |
444 | #else |
478 | #else |
445 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
479 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
496 | CvPADLIST (cv) = (AV *)POPs; |
530 | CvPADLIST (cv) = (AV *)POPs; |
497 | } |
531 | } |
498 | |
532 | |
499 | PUTBACK; |
533 | PUTBACK; |
500 | } |
534 | } |
|
|
535 | |
|
|
536 | slf_frame = c->slf_frame; |
|
|
537 | CORO_THROW = c->except; |
501 | } |
538 | } |
502 | |
539 | |
503 | static void |
540 | static void |
504 | save_perl (pTHX_ Coro__State c) |
541 | save_perl (pTHX_ Coro__State c) |
505 | { |
542 | { |
|
|
543 | c->except = CORO_THROW; |
|
|
544 | c->slf_frame = slf_frame; |
|
|
545 | |
506 | { |
546 | { |
507 | dSP; |
547 | dSP; |
508 | I32 cxix = cxstack_ix; |
548 | I32 cxix = cxstack_ix; |
509 | PERL_CONTEXT *ccstk = cxstack; |
549 | PERL_CONTEXT *ccstk = cxstack; |
510 | PERL_SI *top_si = PL_curstackinfo; |
550 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
577 | #undef VAR |
617 | #undef VAR |
578 | } |
618 | } |
579 | } |
619 | } |
580 | |
620 | |
581 | /* |
621 | /* |
582 | * allocate various perl stacks. This is an exact copy |
622 | * allocate various perl stacks. This is almost an exact copy |
583 | * of perl.c:init_stacks, except that it uses less memory |
623 | * of perl.c:init_stacks, except that it uses less memory |
584 | * on the (sometimes correct) assumption that coroutines do |
624 | * on the (sometimes correct) assumption that coroutines do |
585 | * not usually need a lot of stackspace. |
625 | * not usually need a lot of stackspace. |
586 | */ |
626 | */ |
587 | #if CORO_PREFER_PERL_FUNCTIONS |
627 | #if CORO_PREFER_PERL_FUNCTIONS |
588 | # define coro_init_stacks init_stacks |
628 | # define coro_init_stacks(thx) init_stacks () |
589 | #else |
629 | #else |
590 | static void |
630 | static void |
591 | coro_init_stacks (pTHX) |
631 | coro_init_stacks (pTHX) |
592 | { |
632 | { |
593 | PL_curstackinfo = new_stackinfo(32, 8); |
633 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
656 | #if !PERL_VERSION_ATLEAST (5,10,0) |
696 | #if !PERL_VERSION_ATLEAST (5,10,0) |
657 | Safefree (PL_retstack); |
697 | Safefree (PL_retstack); |
658 | #endif |
698 | #endif |
659 | } |
699 | } |
660 | |
700 | |
|
|
701 | #define CORO_RSS \ |
|
|
702 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
703 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
704 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
705 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
706 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
707 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
708 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
709 | |
661 | static size_t |
710 | static size_t |
662 | coro_rss (pTHX_ struct coro *coro) |
711 | coro_rss (pTHX_ struct coro *coro) |
663 | { |
712 | { |
664 | size_t rss = sizeof (*coro); |
713 | size_t rss = sizeof (*coro); |
665 | |
714 | |
666 | if (coro->mainstack) |
715 | if (coro->mainstack) |
667 | { |
716 | { |
668 | perl_slots tmp_slot; |
|
|
669 | perl_slots *slot; |
|
|
670 | |
|
|
671 | if (coro->flags & CF_RUNNING) |
717 | if (coro->flags & CF_RUNNING) |
672 | { |
718 | { |
673 | slot = &tmp_slot; |
719 | #define SYM(sym) PL_ ## sym |
674 | |
720 | CORO_RSS; |
675 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
676 | # include "state.h" |
|
|
677 | #undef VAR |
721 | #undef SYM |
678 | } |
722 | } |
679 | else |
723 | else |
680 | slot = coro->slot; |
|
|
681 | |
|
|
682 | if (slot) |
|
|
683 | { |
724 | { |
684 | rss += sizeof (slot->curstackinfo); |
725 | #define SYM(sym) coro->slot->sym |
685 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
726 | CORO_RSS; |
686 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
727 | #undef SYM |
687 | rss += slot->tmps_max * sizeof (SV *); |
|
|
688 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
689 | rss += slot->scopestack_max * sizeof (I32); |
|
|
690 | rss += slot->savestack_max * sizeof (ANY); |
|
|
691 | |
|
|
692 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
693 | rss += slot->retstack_max * sizeof (OP *); |
|
|
694 | #endif |
|
|
695 | } |
728 | } |
696 | } |
729 | } |
697 | |
730 | |
698 | return rss; |
731 | return rss; |
699 | } |
732 | } |
… | |
… | |
789 | |
822 | |
790 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
823 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
791 | } |
824 | } |
792 | |
825 | |
793 | static void |
826 | static void |
|
|
827 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
828 | { |
|
|
829 | /* kind of mega-hacky, but works */ |
|
|
830 | ta->next = ta->prev = (struct coro *)ta; |
|
|
831 | } |
|
|
832 | |
|
|
833 | static int |
|
|
834 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
835 | { |
|
|
836 | return 0; |
|
|
837 | } |
|
|
838 | |
|
|
839 | static UNOP coro_setup_op; |
|
|
840 | |
|
|
841 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
794 | coro_setup (pTHX_ struct coro *coro) |
842 | coro_setup (pTHX_ struct coro *coro) |
795 | { |
843 | { |
796 | /* |
844 | /* |
797 | * emulate part of the perl startup here. |
845 | * emulate part of the perl startup here. |
798 | */ |
846 | */ |
… | |
… | |
822 | PL_rs = newSVsv (GvSV (irsgv)); |
870 | PL_rs = newSVsv (GvSV (irsgv)); |
823 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
871 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
824 | |
872 | |
825 | { |
873 | { |
826 | dSP; |
874 | dSP; |
827 | LOGOP myop; |
875 | UNOP myop; |
828 | |
876 | |
829 | Zero (&myop, 1, LOGOP); |
877 | Zero (&myop, 1, UNOP); |
830 | myop.op_next = Nullop; |
878 | myop.op_next = Nullop; |
|
|
879 | myop.op_type = OP_ENTERSUB; |
831 | myop.op_flags = OPf_WANT_VOID; |
880 | myop.op_flags = OPf_WANT_VOID; |
832 | |
881 | |
833 | PUSHMARK (SP); |
882 | PUSHMARK (SP); |
834 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
883 | PUSHs ((SV *)coro->startcv); |
835 | PUTBACK; |
884 | PUTBACK; |
836 | PL_op = (OP *)&myop; |
885 | PL_op = (OP *)&myop; |
837 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
886 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
838 | SPAGAIN; |
|
|
839 | } |
887 | } |
840 | |
888 | |
841 | /* this newly created coroutine might be run on an existing cctx which most |
889 | /* this newly created coroutine might be run on an existing cctx which most |
842 | * likely was suspended in set_stacklevel, called from entersub. |
890 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
843 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
844 | * so we ENTER here for symmetry |
|
|
845 | */ |
891 | */ |
846 | ENTER; |
892 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
893 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
894 | |
|
|
895 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
896 | coro_setup_op.op_next = PL_op; |
|
|
897 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
898 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
899 | /* no flags etc. required, as an init function won't be called */ |
|
|
900 | |
|
|
901 | PL_op = (OP *)&coro_setup_op; |
|
|
902 | |
|
|
903 | /* copy throw, in case it was set before coro_setup */ |
|
|
904 | CORO_THROW = coro->except; |
847 | } |
905 | } |
848 | |
906 | |
849 | static void |
907 | static void |
850 | coro_destruct (pTHX_ struct coro *coro) |
908 | coro_destruct (pTHX_ struct coro *coro) |
851 | { |
909 | { |
… | |
… | |
875 | |
933 | |
876 | SvREFCNT_dec (PL_diehook); |
934 | SvREFCNT_dec (PL_diehook); |
877 | SvREFCNT_dec (PL_warnhook); |
935 | SvREFCNT_dec (PL_warnhook); |
878 | |
936 | |
879 | SvREFCNT_dec (coro->saved_deffh); |
937 | SvREFCNT_dec (coro->saved_deffh); |
880 | SvREFCNT_dec (coro->throw); |
938 | SvREFCNT_dec (coro->rouse_cb); |
|
|
939 | SvREFCNT_dec (coro->invoke_cb); |
|
|
940 | SvREFCNT_dec (coro->invoke_av); |
881 | |
941 | |
882 | coro_destruct_stacks (aTHX); |
942 | coro_destruct_stacks (aTHX); |
883 | } |
943 | } |
884 | |
944 | |
885 | static void |
945 | INLINE void |
886 | free_coro_mortal (pTHX) |
946 | free_coro_mortal (pTHX) |
887 | { |
947 | { |
888 | if (expect_true (coro_mortal)) |
948 | if (expect_true (coro_mortal)) |
889 | { |
949 | { |
890 | SvREFCNT_dec (coro_mortal); |
950 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
895 | static int |
955 | static int |
896 | runops_trace (pTHX) |
956 | runops_trace (pTHX) |
897 | { |
957 | { |
898 | COP *oldcop = 0; |
958 | COP *oldcop = 0; |
899 | int oldcxix = -2; |
959 | int oldcxix = -2; |
900 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
960 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
901 | coro_cctx *cctx = coro->cctx; |
961 | coro_cctx *cctx = coro->cctx; |
902 | |
962 | |
903 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
963 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
904 | { |
964 | { |
905 | PERL_ASYNC_CHECK (); |
965 | PERL_ASYNC_CHECK (); |
… | |
… | |
972 | SAVETMPS; |
1032 | SAVETMPS; |
973 | EXTEND (SP, 3); |
1033 | EXTEND (SP, 3); |
974 | PUSHMARK (SP); |
1034 | PUSHMARK (SP); |
975 | PUSHs (&PL_sv_yes); |
1035 | PUSHs (&PL_sv_yes); |
976 | PUSHs (fullname); |
1036 | PUSHs (fullname); |
977 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1037 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
978 | PUTBACK; |
1038 | PUTBACK; |
979 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1039 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
980 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1040 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
981 | SPAGAIN; |
1041 | SPAGAIN; |
982 | FREETMPS; |
1042 | FREETMPS; |
… | |
… | |
1014 | |
1074 | |
1015 | TAINT_NOT; |
1075 | TAINT_NOT; |
1016 | return 0; |
1076 | return 0; |
1017 | } |
1077 | } |
1018 | |
1078 | |
1019 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1079 | static struct coro_cctx *cctx_ssl_cctx; |
1020 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1080 | static struct CoroSLF cctx_ssl_frame; |
1021 | /* during execution of a perl program */ |
1081 | |
|
|
1082 | static void |
|
|
1083 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1084 | { |
|
|
1085 | ta->prev = (struct coro *)cctx_ssl_cctx; |
|
|
1086 | ta->next = 0; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | static int |
|
|
1090 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1091 | { |
|
|
1092 | *frame = cctx_ssl_frame; |
|
|
1093 | |
|
|
1094 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1022 | static void NOINLINE |
1098 | static void NOINLINE |
1023 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1099 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1024 | { |
1100 | { |
1025 | dSP; |
|
|
1026 | LOGOP myop; |
|
|
1027 | |
|
|
1028 | PL_top_env = &PL_start_env; |
1101 | PL_top_env = &PL_start_env; |
1029 | |
1102 | |
1030 | if (cctx->flags & CC_TRACE) |
1103 | if (cctx->flags & CC_TRACE) |
1031 | PL_runops = runops_trace; |
1104 | PL_runops = runops_trace; |
1032 | |
1105 | |
1033 | Zero (&myop, 1, LOGOP); |
1106 | /* we already must be executing an SLF op, there is no other valid way |
1034 | myop.op_next = PL_op; |
1107 | * that can lead to creation of a new cctx */ |
1035 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1108 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1109 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1036 | |
1110 | |
1037 | PUSHMARK (SP); |
1111 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1038 | EXTEND (SP, 2); |
1112 | cctx_ssl_cctx = cctx; |
1039 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1113 | cctx_ssl_frame = slf_frame; |
1040 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1114 | |
1041 | PUTBACK; |
1115 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1042 | PL_op = (OP *)&myop; |
1116 | slf_frame.check = slf_check_set_stacklevel; |
1043 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1117 | } |
1044 | SPAGAIN; |
1118 | |
|
|
1119 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1120 | INLINE void |
|
|
1121 | transfer_tail (pTHX) |
|
|
1122 | { |
|
|
1123 | free_coro_mortal (aTHX); |
1045 | } |
1124 | } |
1046 | |
1125 | |
1047 | /* |
1126 | /* |
1048 | * this is a _very_ stripped down perl interpreter ;) |
1127 | * this is a _very_ stripped down perl interpreter ;) |
1049 | */ |
1128 | */ |
1050 | static void |
1129 | static void |
1051 | cctx_run (void *arg) |
1130 | cctx_run (void *arg) |
1052 | { |
1131 | { |
|
|
1132 | #ifdef USE_ITHREADS |
|
|
1133 | # if CORO_PTHREAD |
|
|
1134 | PERL_SET_CONTEXT (coro_thx); |
|
|
1135 | # endif |
|
|
1136 | #endif |
|
|
1137 | { |
1053 | dTHX; |
1138 | dTHX; |
1054 | |
1139 | |
1055 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1140 | /* normally we would need to skip the entersub here */ |
1056 | UNLOCK; |
1141 | /* not doing so will re-execute it, which is exactly what we want */ |
1057 | |
|
|
1058 | /* we now skip the entersub that lead to transfer() */ |
|
|
1059 | PL_op = PL_op->op_next; |
1142 | /* PL_nop = PL_nop->op_next */ |
1060 | |
1143 | |
1061 | /* inject a fake subroutine call to cctx_init */ |
1144 | /* inject a fake subroutine call to cctx_init */ |
1062 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1145 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1063 | |
1146 | |
|
|
1147 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1148 | transfer_tail (aTHX); |
|
|
1149 | |
1064 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1150 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1065 | PL_restartop = PL_op; |
1151 | PL_restartop = PL_op; |
1066 | perl_run (PL_curinterp); |
1152 | perl_run (PL_curinterp); |
1067 | |
|
|
1068 | /* |
1153 | /* |
|
|
1154 | * Unfortunately, there is no way to get at the return values of the |
|
|
1155 | * coro body here, as perl_run destroys these |
|
|
1156 | */ |
|
|
1157 | |
|
|
1158 | /* |
1069 | * If perl-run returns we assume exit() was being called or the coro |
1159 | * If perl-run returns we assume exit() was being called or the coro |
1070 | * fell off the end, which seems to be the only valid (non-bug) |
1160 | * fell off the end, which seems to be the only valid (non-bug) |
1071 | * reason for perl_run to return. We try to exit by jumping to the |
1161 | * reason for perl_run to return. We try to exit by jumping to the |
1072 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1162 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1073 | * coroutine as Coro has no such concept |
1163 | * coroutine as Coro has no such concept |
1074 | */ |
1164 | */ |
1075 | PL_top_env = main_top_env; |
1165 | PL_top_env = main_top_env; |
1076 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1166 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1167 | } |
1077 | } |
1168 | } |
1078 | |
1169 | |
1079 | static coro_cctx * |
1170 | static coro_cctx * |
1080 | cctx_new () |
1171 | cctx_new () |
1081 | { |
1172 | { |
1082 | coro_cctx *cctx; |
1173 | coro_cctx *cctx; |
|
|
1174 | |
|
|
1175 | ++cctx_count; |
|
|
1176 | New (0, cctx, 1, coro_cctx); |
|
|
1177 | |
|
|
1178 | cctx->gen = cctx_gen; |
|
|
1179 | cctx->flags = 0; |
|
|
1180 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1181 | |
|
|
1182 | return cctx; |
|
|
1183 | } |
|
|
1184 | |
|
|
1185 | /* create a new cctx only suitable as source */ |
|
|
1186 | static coro_cctx * |
|
|
1187 | cctx_new_empty () |
|
|
1188 | { |
|
|
1189 | coro_cctx *cctx = cctx_new (); |
|
|
1190 | |
|
|
1191 | cctx->sptr = 0; |
|
|
1192 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1193 | |
|
|
1194 | return cctx; |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1198 | static coro_cctx * |
|
|
1199 | cctx_new_run () |
|
|
1200 | { |
|
|
1201 | coro_cctx *cctx = cctx_new (); |
1083 | void *stack_start; |
1202 | void *stack_start; |
1084 | size_t stack_size; |
1203 | size_t stack_size; |
1085 | |
|
|
1086 | ++cctx_count; |
|
|
1087 | Newz (0, cctx, 1, coro_cctx); |
|
|
1088 | |
|
|
1089 | cctx->gen = cctx_gen; |
|
|
1090 | |
1204 | |
1091 | #if HAVE_MMAP |
1205 | #if HAVE_MMAP |
1092 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1206 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1093 | /* mmap supposedly does allocate-on-write for us */ |
1207 | /* mmap supposedly does allocate-on-write for us */ |
1094 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1208 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1095 | |
1209 | |
1096 | if (cctx->sptr != (void *)-1) |
1210 | if (cctx->sptr != (void *)-1) |
1097 | { |
1211 | { |
1098 | # if CORO_STACKGUARD |
1212 | #if CORO_STACKGUARD |
1099 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1213 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1100 | # endif |
1214 | #endif |
1101 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1215 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1102 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1216 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1103 | cctx->flags |= CC_MAPPED; |
1217 | cctx->flags |= CC_MAPPED; |
1104 | } |
1218 | } |
1105 | else |
1219 | else |
1106 | #endif |
1220 | #endif |
1107 | { |
1221 | { |
1108 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1222 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1109 | New (0, cctx->sptr, cctx_stacksize, long); |
1223 | New (0, cctx->sptr, cctx_stacksize, long); |
1110 | |
1224 | |
1111 | if (!cctx->sptr) |
1225 | if (!cctx->sptr) |
1112 | { |
1226 | { |
1113 | perror ("FATAL: unable to allocate stack for coroutine"); |
1227 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1114 | _exit (EXIT_FAILURE); |
1228 | _exit (EXIT_FAILURE); |
1115 | } |
1229 | } |
1116 | |
1230 | |
1117 | stack_start = cctx->sptr; |
1231 | stack_start = cctx->sptr; |
1118 | stack_size = cctx->ssize; |
1232 | stack_size = cctx->ssize; |
1119 | } |
1233 | } |
1120 | |
1234 | |
1121 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1235 | #if CORO_USE_VALGRIND |
|
|
1236 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1237 | #endif |
|
|
1238 | |
1122 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1239 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1123 | |
1240 | |
1124 | return cctx; |
1241 | return cctx; |
1125 | } |
1242 | } |
1126 | |
1243 | |
… | |
… | |
1134 | coro_destroy (&cctx->cctx); |
1251 | coro_destroy (&cctx->cctx); |
1135 | |
1252 | |
1136 | /* coro_transfer creates new, empty cctx's */ |
1253 | /* coro_transfer creates new, empty cctx's */ |
1137 | if (cctx->sptr) |
1254 | if (cctx->sptr) |
1138 | { |
1255 | { |
1139 | #if CORO_USE_VALGRIND |
1256 | #if CORO_USE_VALGRIND |
1140 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1257 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1141 | #endif |
1258 | #endif |
1142 | |
1259 | |
1143 | #if HAVE_MMAP |
1260 | #if HAVE_MMAP |
1144 | if (cctx->flags & CC_MAPPED) |
1261 | if (cctx->flags & CC_MAPPED) |
1145 | munmap (cctx->sptr, cctx->ssize); |
1262 | munmap (cctx->sptr, cctx->ssize); |
1146 | else |
1263 | else |
… | |
… | |
1167 | return cctx; |
1284 | return cctx; |
1168 | |
1285 | |
1169 | cctx_destroy (cctx); |
1286 | cctx_destroy (cctx); |
1170 | } |
1287 | } |
1171 | |
1288 | |
1172 | return cctx_new (); |
1289 | return cctx_new_run (); |
1173 | } |
1290 | } |
1174 | |
1291 | |
1175 | static void |
1292 | static void |
1176 | cctx_put (coro_cctx *cctx) |
1293 | cctx_put (coro_cctx *cctx) |
1177 | { |
1294 | { |
1178 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
1295 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1179 | |
1296 | |
1180 | /* free another cctx if overlimit */ |
1297 | /* free another cctx if overlimit */ |
1181 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1298 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1182 | { |
1299 | { |
1183 | coro_cctx *first = cctx_first; |
1300 | coro_cctx *first = cctx_first; |
… | |
… | |
1195 | /** coroutine switching *****************************************************/ |
1312 | /** coroutine switching *****************************************************/ |
1196 | |
1313 | |
1197 | static void |
1314 | static void |
1198 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1315 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1199 | { |
1316 | { |
|
|
1317 | /* TODO: throwing up here is considered harmful */ |
|
|
1318 | |
1200 | if (expect_true (prev != next)) |
1319 | if (expect_true (prev != next)) |
1201 | { |
1320 | { |
1202 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1321 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1203 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1322 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1204 | |
1323 | |
1205 | if (expect_false (next->flags & CF_RUNNING)) |
1324 | if (expect_false (next->flags & CF_RUNNING)) |
1206 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1325 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1207 | |
1326 | |
1208 | if (expect_false (next->flags & CF_DESTROYED)) |
1327 | if (expect_false (next->flags & CF_DESTROYED)) |
1209 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1328 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1210 | |
1329 | |
1211 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1330 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1212 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1331 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1213 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1332 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1214 | #endif |
1333 | #endif |
1215 | } |
1334 | } |
1216 | } |
1335 | } |
1217 | |
1336 | |
1218 | /* always use the TRANSFER macro */ |
1337 | /* always use the TRANSFER macro */ |
1219 | static void NOINLINE |
1338 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1220 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1339 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1221 | { |
1340 | { |
1222 | dSTACKLEVEL; |
1341 | dSTACKLEVEL; |
1223 | |
1342 | |
1224 | /* sometimes transfer is only called to set idle_sp */ |
1343 | /* sometimes transfer is only called to set idle_sp */ |
… | |
… | |
1227 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1346 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1228 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1347 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1229 | } |
1348 | } |
1230 | else if (expect_true (prev != next)) |
1349 | else if (expect_true (prev != next)) |
1231 | { |
1350 | { |
1232 | static volatile int has_throw; |
|
|
1233 | coro_cctx *prev__cctx; |
1351 | coro_cctx *prev__cctx; |
1234 | |
1352 | |
1235 | if (expect_false (prev->flags & CF_NEW)) |
1353 | if (expect_false (prev->flags & CF_NEW)) |
1236 | { |
1354 | { |
1237 | /* create a new empty/source context */ |
1355 | /* create a new empty/source context */ |
1238 | ++cctx_count; |
1356 | prev->cctx = cctx_new_empty (); |
1239 | New (0, prev->cctx, 1, coro_cctx); |
|
|
1240 | prev->cctx->sptr = 0; |
|
|
1241 | coro_create (&prev->cctx->cctx, 0, 0, 0, 0); |
|
|
1242 | |
|
|
1243 | prev->flags &= ~CF_NEW; |
1357 | prev->flags &= ~CF_NEW; |
1244 | prev->flags |= CF_RUNNING; |
1358 | prev->flags |= CF_RUNNING; |
1245 | } |
1359 | } |
1246 | |
1360 | |
1247 | prev->flags &= ~CF_RUNNING; |
1361 | prev->flags &= ~CF_RUNNING; |
1248 | next->flags |= CF_RUNNING; |
1362 | next->flags |= CF_RUNNING; |
1249 | |
|
|
1250 | LOCK; |
|
|
1251 | |
1363 | |
1252 | /* first get rid of the old state */ |
1364 | /* first get rid of the old state */ |
1253 | save_perl (aTHX_ prev); |
1365 | save_perl (aTHX_ prev); |
1254 | |
1366 | |
1255 | if (expect_false (next->flags & CF_NEW)) |
1367 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1262 | else |
1374 | else |
1263 | load_perl (aTHX_ next); |
1375 | load_perl (aTHX_ next); |
1264 | |
1376 | |
1265 | prev__cctx = prev->cctx; |
1377 | prev__cctx = prev->cctx; |
1266 | |
1378 | |
1267 | /* possibly "free" the cctx */ |
1379 | /* possibly untie and reuse the cctx */ |
1268 | if (expect_true ( |
1380 | if (expect_true ( |
1269 | prev__cctx->idle_sp == STACKLEVEL |
1381 | prev__cctx->idle_sp == STACKLEVEL |
1270 | && !(prev__cctx->flags & CC_TRACE) |
1382 | && !(prev__cctx->flags & CC_TRACE) |
1271 | && !force_cctx |
1383 | && !force_cctx |
1272 | )) |
1384 | )) |
1273 | { |
1385 | { |
1274 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1386 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1275 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1387 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1276 | |
1388 | |
1277 | prev->cctx = 0; |
1389 | prev->cctx = 0; |
1278 | |
1390 | |
1279 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1391 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1280 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1392 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
… | |
… | |
1287 | |
1399 | |
1288 | ++next->usecount; |
1400 | ++next->usecount; |
1289 | |
1401 | |
1290 | if (expect_true (!next->cctx)) |
1402 | if (expect_true (!next->cctx)) |
1291 | next->cctx = cctx_get (aTHX); |
1403 | next->cctx = cctx_get (aTHX); |
1292 | |
|
|
1293 | has_throw = !!next->throw; |
|
|
1294 | |
1404 | |
1295 | if (expect_false (prev__cctx != next->cctx)) |
1405 | if (expect_false (prev__cctx != next->cctx)) |
1296 | { |
1406 | { |
1297 | prev__cctx->top_env = PL_top_env; |
1407 | prev__cctx->top_env = PL_top_env; |
1298 | PL_top_env = next->cctx->top_env; |
1408 | PL_top_env = next->cctx->top_env; |
1299 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1409 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1300 | } |
1410 | } |
1301 | |
1411 | |
1302 | free_coro_mortal (aTHX); |
1412 | transfer_tail (aTHX); |
1303 | UNLOCK; |
|
|
1304 | |
|
|
1305 | if (expect_false (has_throw)) |
|
|
1306 | { |
|
|
1307 | struct coro *coro = SvSTATE (coro_current); |
|
|
1308 | |
|
|
1309 | if (coro->throw) |
|
|
1310 | { |
|
|
1311 | SV *exception = coro->throw; |
|
|
1312 | coro->throw = 0; |
|
|
1313 | sv_setsv (ERRSV, exception); |
|
|
1314 | croak (0); |
|
|
1315 | } |
|
|
1316 | } |
|
|
1317 | } |
1413 | } |
1318 | } |
1414 | } |
1319 | |
|
|
1320 | struct transfer_args |
|
|
1321 | { |
|
|
1322 | struct coro *prev, *next; |
|
|
1323 | }; |
|
|
1324 | |
1415 | |
1325 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1416 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1326 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1417 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1327 | |
1418 | |
1328 | /** high level stuff ********************************************************/ |
1419 | /** high level stuff ********************************************************/ |
… | |
… | |
1330 | static int |
1421 | static int |
1331 | coro_state_destroy (pTHX_ struct coro *coro) |
1422 | coro_state_destroy (pTHX_ struct coro *coro) |
1332 | { |
1423 | { |
1333 | if (coro->flags & CF_DESTROYED) |
1424 | if (coro->flags & CF_DESTROYED) |
1334 | return 0; |
1425 | return 0; |
|
|
1426 | |
|
|
1427 | if (coro->on_destroy) |
|
|
1428 | coro->on_destroy (aTHX_ coro); |
1335 | |
1429 | |
1336 | coro->flags |= CF_DESTROYED; |
1430 | coro->flags |= CF_DESTROYED; |
1337 | |
1431 | |
1338 | if (coro->flags & CF_READY) |
1432 | if (coro->flags & CF_READY) |
1339 | { |
1433 | { |
1340 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1434 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1341 | /* alternative: look through all ready queues and remove the coro */ |
1435 | /* alternative: look through all ready queues and remove the coro */ |
1342 | LOCK; |
|
|
1343 | --coro_nready; |
1436 | --coro_nready; |
1344 | UNLOCK; |
|
|
1345 | } |
1437 | } |
1346 | else |
1438 | else |
1347 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1439 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1348 | |
1440 | |
1349 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1441 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1350 | { |
1442 | { |
1351 | struct coro temp; |
1443 | struct coro temp; |
1352 | |
1444 | |
1353 | if (coro->flags & CF_RUNNING) |
1445 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1354 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1355 | |
1446 | |
1356 | save_perl (aTHX_ &temp); |
1447 | save_perl (aTHX_ &temp); |
1357 | load_perl (aTHX_ coro); |
1448 | load_perl (aTHX_ coro); |
1358 | |
1449 | |
1359 | coro_destruct (aTHX_ coro); |
1450 | coro_destruct (aTHX_ coro); |
… | |
… | |
1362 | |
1453 | |
1363 | coro->slot = 0; |
1454 | coro->slot = 0; |
1364 | } |
1455 | } |
1365 | |
1456 | |
1366 | cctx_destroy (coro->cctx); |
1457 | cctx_destroy (coro->cctx); |
|
|
1458 | SvREFCNT_dec (coro->startcv); |
1367 | SvREFCNT_dec (coro->args); |
1459 | SvREFCNT_dec (coro->args); |
|
|
1460 | SvREFCNT_dec (CORO_THROW); |
1368 | |
1461 | |
1369 | if (coro->next) coro->next->prev = coro->prev; |
1462 | if (coro->next) coro->next->prev = coro->prev; |
1370 | if (coro->prev) coro->prev->next = coro->next; |
1463 | if (coro->prev) coro->prev->next = coro->next; |
1371 | if (coro == coro_first) coro_first = coro->next; |
1464 | if (coro == coro_first) coro_first = coro->next; |
1372 | |
1465 | |
… | |
… | |
1410 | # define MGf_DUP 0 |
1503 | # define MGf_DUP 0 |
1411 | #endif |
1504 | #endif |
1412 | }; |
1505 | }; |
1413 | |
1506 | |
1414 | static void |
1507 | static void |
1415 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1508 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1416 | { |
1509 | { |
1417 | ta->prev = SvSTATE (prev_sv); |
1510 | ta->prev = SvSTATE (prev_sv); |
1418 | ta->next = SvSTATE (next_sv); |
1511 | ta->next = SvSTATE (next_sv); |
1419 | TRANSFER_CHECK (*ta); |
1512 | TRANSFER_CHECK (*ta); |
1420 | } |
1513 | } |
1421 | |
1514 | |
1422 | static void |
1515 | static void |
1423 | api_transfer (SV *prev_sv, SV *next_sv) |
1516 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1424 | { |
1517 | { |
1425 | dTHX; |
|
|
1426 | struct transfer_args ta; |
1518 | struct coro_transfer_args ta; |
1427 | |
1519 | |
1428 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1520 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1429 | TRANSFER (ta, 1); |
1521 | TRANSFER (ta, 1); |
1430 | } |
1522 | } |
1431 | |
1523 | |
|
|
1524 | /*****************************************************************************/ |
|
|
1525 | /* gensub: simple closure generation utility */ |
|
|
1526 | |
|
|
1527 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1528 | |
|
|
1529 | /* create a closure from XS, returns a code reference */ |
|
|
1530 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1531 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1532 | static SV * |
|
|
1533 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1534 | { |
|
|
1535 | CV *cv = (CV *)newSV (0); |
|
|
1536 | |
|
|
1537 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1538 | |
|
|
1539 | CvANON_on (cv); |
|
|
1540 | CvISXSUB_on (cv); |
|
|
1541 | CvXSUB (cv) = xsub; |
|
|
1542 | GENSUB_ARG = arg; |
|
|
1543 | |
|
|
1544 | return newRV_noinc ((SV *)cv); |
|
|
1545 | } |
|
|
1546 | |
1432 | /** Coro ********************************************************************/ |
1547 | /** Coro ********************************************************************/ |
1433 | |
1548 | |
1434 | static void |
1549 | INLINE void |
1435 | coro_enq (pTHX_ SV *coro_sv) |
1550 | coro_enq (pTHX_ struct coro *coro) |
1436 | { |
1551 | { |
1437 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1552 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1438 | } |
1553 | } |
1439 | |
1554 | |
1440 | static SV * |
1555 | INLINE SV * |
1441 | coro_deq (pTHX) |
1556 | coro_deq (pTHX) |
1442 | { |
1557 | { |
1443 | int prio; |
1558 | int prio; |
1444 | |
1559 | |
1445 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1560 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1448 | |
1563 | |
1449 | return 0; |
1564 | return 0; |
1450 | } |
1565 | } |
1451 | |
1566 | |
1452 | static int |
1567 | static int |
1453 | api_ready (SV *coro_sv) |
1568 | api_ready (pTHX_ SV *coro_sv) |
1454 | { |
1569 | { |
1455 | dTHX; |
|
|
1456 | struct coro *coro; |
1570 | struct coro *coro; |
1457 | SV *sv_hook; |
1571 | SV *sv_hook; |
1458 | void (*xs_hook)(void); |
1572 | void (*xs_hook)(void); |
1459 | |
1573 | |
1460 | if (SvROK (coro_sv)) |
1574 | if (SvROK (coro_sv)) |
… | |
… | |
1465 | if (coro->flags & CF_READY) |
1579 | if (coro->flags & CF_READY) |
1466 | return 0; |
1580 | return 0; |
1467 | |
1581 | |
1468 | coro->flags |= CF_READY; |
1582 | coro->flags |= CF_READY; |
1469 | |
1583 | |
1470 | LOCK; |
|
|
1471 | |
|
|
1472 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1584 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1473 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1585 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1474 | |
1586 | |
1475 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1587 | coro_enq (aTHX_ coro); |
1476 | ++coro_nready; |
1588 | ++coro_nready; |
1477 | |
1589 | |
1478 | UNLOCK; |
|
|
1479 | |
|
|
1480 | if (sv_hook) |
1590 | if (sv_hook) |
1481 | { |
1591 | { |
1482 | dSP; |
1592 | dSP; |
1483 | |
1593 | |
1484 | ENTER; |
1594 | ENTER; |
1485 | SAVETMPS; |
1595 | SAVETMPS; |
1486 | |
1596 | |
1487 | PUSHMARK (SP); |
1597 | PUSHMARK (SP); |
1488 | PUTBACK; |
1598 | PUTBACK; |
1489 | call_sv (sv_hook, G_DISCARD); |
1599 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1490 | SPAGAIN; |
|
|
1491 | |
1600 | |
1492 | FREETMPS; |
1601 | FREETMPS; |
1493 | LEAVE; |
1602 | LEAVE; |
1494 | } |
1603 | } |
1495 | |
1604 | |
… | |
… | |
1498 | |
1607 | |
1499 | return 1; |
1608 | return 1; |
1500 | } |
1609 | } |
1501 | |
1610 | |
1502 | static int |
1611 | static int |
1503 | api_is_ready (SV *coro_sv) |
1612 | api_is_ready (pTHX_ SV *coro_sv) |
1504 | { |
1613 | { |
1505 | dTHX; |
|
|
1506 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1614 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1507 | } |
1615 | } |
1508 | |
1616 | |
|
|
1617 | /* expects to own a reference to next->hv */ |
|
|
1618 | INLINE void |
|
|
1619 | prepare_cede_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1620 | { |
|
|
1621 | SV *prev_sv = SvRV (coro_current); |
|
|
1622 | |
|
|
1623 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1624 | ta->next = next; |
|
|
1625 | |
|
|
1626 | TRANSFER_CHECK (*ta); |
|
|
1627 | |
|
|
1628 | SvRV_set (coro_current, next->hv); |
|
|
1629 | |
|
|
1630 | free_coro_mortal (aTHX); |
|
|
1631 | coro_mortal = prev_sv; |
|
|
1632 | } |
|
|
1633 | |
1509 | static void |
1634 | static void |
1510 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1635 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1511 | { |
1636 | { |
1512 | SV *prev_sv, *next_sv; |
|
|
1513 | |
|
|
1514 | for (;;) |
1637 | for (;;) |
1515 | { |
1638 | { |
1516 | LOCK; |
|
|
1517 | next_sv = coro_deq (aTHX); |
1639 | SV *next_sv = coro_deq (aTHX); |
1518 | |
1640 | |
1519 | /* nothing to schedule: call the idle handler */ |
|
|
1520 | if (expect_false (!next_sv)) |
1641 | if (expect_false (!next_sv)) |
1521 | { |
1642 | { |
|
|
1643 | /* nothing to schedule: call the idle handler */ |
1522 | dSP; |
1644 | dSP; |
1523 | UNLOCK; |
|
|
1524 | |
1645 | |
1525 | ENTER; |
1646 | ENTER; |
1526 | SAVETMPS; |
1647 | SAVETMPS; |
1527 | |
1648 | |
1528 | PUSHMARK (SP); |
1649 | PUSHMARK (SP); |
1529 | PUTBACK; |
1650 | PUTBACK; |
1530 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1651 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1531 | SPAGAIN; |
|
|
1532 | |
1652 | |
1533 | FREETMPS; |
1653 | FREETMPS; |
1534 | LEAVE; |
1654 | LEAVE; |
1535 | continue; |
|
|
1536 | } |
1655 | } |
1537 | |
1656 | else |
1538 | ta->next = SvSTATE (next_sv); |
|
|
1539 | |
|
|
1540 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1541 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1542 | { |
1657 | { |
1543 | UNLOCK; |
1658 | struct coro *next = SvSTATE_hv (next_sv); |
1544 | SvREFCNT_dec (next_sv); |
1659 | |
|
|
1660 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1661 | if (expect_false (next->flags & CF_DESTROYED)) |
1545 | /* coro_nready is already taken care of by destroy */ |
1662 | SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ |
1546 | continue; |
1663 | else |
|
|
1664 | { |
|
|
1665 | next->flags &= ~CF_READY; |
|
|
1666 | --coro_nready; |
|
|
1667 | |
|
|
1668 | return prepare_cede_to (aTHX_ ta, next); |
|
|
1669 | } |
1547 | } |
1670 | } |
1548 | |
|
|
1549 | --coro_nready; |
|
|
1550 | UNLOCK; |
|
|
1551 | break; |
|
|
1552 | } |
1671 | } |
1553 | |
|
|
1554 | /* free this only after the transfer */ |
|
|
1555 | prev_sv = SvRV (coro_current); |
|
|
1556 | ta->prev = SvSTATE (prev_sv); |
|
|
1557 | TRANSFER_CHECK (*ta); |
|
|
1558 | assert (ta->next->flags & CF_READY); |
|
|
1559 | ta->next->flags &= ~CF_READY; |
|
|
1560 | SvRV_set (coro_current, next_sv); |
|
|
1561 | |
|
|
1562 | LOCK; |
|
|
1563 | free_coro_mortal (aTHX); |
|
|
1564 | coro_mortal = prev_sv; |
|
|
1565 | UNLOCK; |
|
|
1566 | } |
1672 | } |
1567 | |
1673 | |
1568 | static void |
1674 | INLINE void |
1569 | prepare_cede (pTHX_ struct transfer_args *ta) |
1675 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1570 | { |
1676 | { |
1571 | api_ready (coro_current); |
1677 | api_ready (aTHX_ coro_current); |
1572 | prepare_schedule (aTHX_ ta); |
1678 | prepare_schedule (aTHX_ ta); |
1573 | } |
1679 | } |
1574 | |
1680 | |
|
|
1681 | INLINE void |
|
|
1682 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1683 | { |
|
|
1684 | SV *prev = SvRV (coro_current); |
|
|
1685 | |
|
|
1686 | if (coro_nready) |
|
|
1687 | { |
|
|
1688 | prepare_schedule (aTHX_ ta); |
|
|
1689 | api_ready (aTHX_ prev); |
|
|
1690 | } |
|
|
1691 | else |
|
|
1692 | prepare_nop (aTHX_ ta); |
|
|
1693 | } |
|
|
1694 | |
|
|
1695 | static void |
|
|
1696 | api_schedule (pTHX) |
|
|
1697 | { |
|
|
1698 | struct coro_transfer_args ta; |
|
|
1699 | |
|
|
1700 | prepare_schedule (aTHX_ &ta); |
|
|
1701 | TRANSFER (ta, 1); |
|
|
1702 | } |
|
|
1703 | |
1575 | static int |
1704 | static int |
1576 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1705 | api_cede (pTHX) |
1577 | { |
1706 | { |
1578 | if (coro_nready) |
1707 | struct coro_transfer_args ta; |
1579 | { |
1708 | |
1580 | SV *prev = SvRV (coro_current); |
|
|
1581 | prepare_schedule (aTHX_ ta); |
1709 | prepare_cede (aTHX_ &ta); |
1582 | api_ready (prev); |
1710 | |
|
|
1711 | if (expect_true (ta.prev != ta.next)) |
|
|
1712 | { |
|
|
1713 | TRANSFER (ta, 1); |
1583 | return 1; |
1714 | return 1; |
1584 | } |
1715 | } |
1585 | else |
1716 | else |
1586 | return 0; |
1717 | return 0; |
1587 | } |
1718 | } |
1588 | |
1719 | |
1589 | static void |
|
|
1590 | api_schedule (void) |
|
|
1591 | { |
|
|
1592 | dTHX; |
|
|
1593 | struct transfer_args ta; |
|
|
1594 | |
|
|
1595 | prepare_schedule (aTHX_ &ta); |
|
|
1596 | TRANSFER (ta, 1); |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | static int |
1720 | static int |
1600 | api_cede (void) |
1721 | api_cede_notself (pTHX) |
1601 | { |
1722 | { |
1602 | dTHX; |
1723 | if (coro_nready) |
|
|
1724 | { |
1603 | struct transfer_args ta; |
1725 | struct coro_transfer_args ta; |
1604 | |
1726 | |
1605 | prepare_cede (aTHX_ &ta); |
1727 | prepare_cede_notself (aTHX_ &ta); |
1606 | |
|
|
1607 | if (expect_true (ta.prev != ta.next)) |
|
|
1608 | { |
|
|
1609 | TRANSFER (ta, 1); |
1728 | TRANSFER (ta, 1); |
1610 | return 1; |
1729 | return 1; |
1611 | } |
1730 | } |
1612 | else |
1731 | else |
1613 | return 0; |
1732 | return 0; |
1614 | } |
1733 | } |
1615 | |
1734 | |
1616 | static int |
1735 | static void |
1617 | api_cede_notself (void) |
|
|
1618 | { |
|
|
1619 | dTHX; |
|
|
1620 | struct transfer_args ta; |
|
|
1621 | |
|
|
1622 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1623 | { |
|
|
1624 | TRANSFER (ta, 1); |
|
|
1625 | return 1; |
|
|
1626 | } |
|
|
1627 | else |
|
|
1628 | return 0; |
|
|
1629 | } |
|
|
1630 | |
|
|
1631 | static void |
|
|
1632 | api_trace (SV *coro_sv, int flags) |
1736 | api_trace (pTHX_ SV *coro_sv, int flags) |
1633 | { |
1737 | { |
1634 | dTHX; |
|
|
1635 | struct coro *coro = SvSTATE (coro_sv); |
1738 | struct coro *coro = SvSTATE (coro_sv); |
1636 | |
1739 | |
1637 | if (flags & CC_TRACE) |
1740 | if (flags & CC_TRACE) |
1638 | { |
1741 | { |
1639 | if (!coro->cctx) |
1742 | if (!coro->cctx) |
1640 | coro->cctx = cctx_new (); |
1743 | coro->cctx = cctx_new_run (); |
1641 | else if (!(coro->cctx->flags & CC_TRACE)) |
1744 | else if (!(coro->cctx->flags & CC_TRACE)) |
1642 | croak ("cannot enable tracing on coroutine with custom stack"); |
1745 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1643 | |
1746 | |
1644 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1747 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1645 | } |
1748 | } |
1646 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1749 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1647 | { |
1750 | { |
… | |
… | |
1652 | else |
1755 | else |
1653 | coro->slot->runops = RUNOPS_DEFAULT; |
1756 | coro->slot->runops = RUNOPS_DEFAULT; |
1654 | } |
1757 | } |
1655 | } |
1758 | } |
1656 | |
1759 | |
1657 | #if 0 |
1760 | /*****************************************************************************/ |
|
|
1761 | /* async pool handler */ |
|
|
1762 | |
1658 | static int |
1763 | static int |
1659 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1764 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
1660 | { |
1765 | { |
1661 | AV *padlist; |
1766 | HV *hv = (HV *)SvRV (coro_current); |
1662 | AV *av = (AV *)mg->mg_obj; |
1767 | struct coro *coro = (struct coro *)frame->data; |
1663 | |
1768 | |
1664 | abort (); |
1769 | if (!coro->invoke_cb) |
|
|
1770 | return 1; /* loop till we have invoke */ |
|
|
1771 | else |
|
|
1772 | { |
|
|
1773 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1774 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1775 | |
|
|
1776 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1777 | |
|
|
1778 | { |
|
|
1779 | dSP; |
|
|
1780 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1781 | PUTBACK; |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1785 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1786 | coro->invoke_av = 0; |
|
|
1787 | |
|
|
1788 | return 0; |
|
|
1789 | } |
|
|
1790 | } |
|
|
1791 | |
|
|
1792 | static void |
|
|
1793 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1794 | { |
|
|
1795 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1796 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1797 | |
|
|
1798 | if (expect_true (coro->saved_deffh)) |
|
|
1799 | { |
|
|
1800 | /* subsequent iteration */ |
|
|
1801 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1802 | coro->saved_deffh = 0; |
|
|
1803 | |
|
|
1804 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1805 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1806 | { |
|
|
1807 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1808 | coro->invoke_av = newAV (); |
|
|
1809 | |
|
|
1810 | frame->prepare = prepare_nop; |
|
|
1811 | } |
|
|
1812 | else |
|
|
1813 | { |
|
|
1814 | av_clear (GvAV (PL_defgv)); |
|
|
1815 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1816 | |
|
|
1817 | coro->prio = 0; |
|
|
1818 | |
|
|
1819 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1820 | api_trace (aTHX_ coro_current, 0); |
|
|
1821 | |
|
|
1822 | frame->prepare = prepare_schedule; |
|
|
1823 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1824 | } |
|
|
1825 | } |
|
|
1826 | else |
|
|
1827 | { |
|
|
1828 | /* first iteration, simply fall through */ |
|
|
1829 | frame->prepare = prepare_nop; |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | frame->check = slf_check_pool_handler; |
|
|
1833 | frame->data = (void *)coro; |
|
|
1834 | } |
|
|
1835 | |
|
|
1836 | /*****************************************************************************/ |
|
|
1837 | /* rouse callback */ |
|
|
1838 | |
|
|
1839 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1840 | |
|
|
1841 | static void |
|
|
1842 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1843 | { |
|
|
1844 | dXSARGS; |
|
|
1845 | SV *data = (SV *)GENSUB_ARG; |
|
|
1846 | |
|
|
1847 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1848 | { |
|
|
1849 | /* first call, set args */ |
|
|
1850 | AV *av = newAV (); |
|
|
1851 | SV *coro = SvRV (data); |
|
|
1852 | |
|
|
1853 | SvRV_set (data, (SV *)av); |
|
|
1854 | api_ready (aTHX_ coro); |
|
|
1855 | SvREFCNT_dec (coro); |
|
|
1856 | |
|
|
1857 | /* better take a full copy of the arguments */ |
|
|
1858 | while (items--) |
|
|
1859 | av_store (av, items, newSVsv (ST (items))); |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | XSRETURN_EMPTY; |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | static int |
|
|
1866 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1867 | { |
|
|
1868 | SV *data = (SV *)frame->data; |
|
|
1869 | |
|
|
1870 | if (CORO_THROW) |
|
|
1871 | return 0; |
|
|
1872 | |
|
|
1873 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1874 | return 1; |
|
|
1875 | |
|
|
1876 | /* now push all results on the stack */ |
|
|
1877 | { |
|
|
1878 | dSP; |
|
|
1879 | AV *av = (AV *)SvRV (data); |
|
|
1880 | int i; |
|
|
1881 | |
|
|
1882 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1883 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1884 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1885 | |
|
|
1886 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1887 | AvFILLp (av) = -1; |
|
|
1888 | av_undef (av); |
|
|
1889 | |
|
|
1890 | PUTBACK; |
|
|
1891 | } |
1665 | |
1892 | |
1666 | return 0; |
1893 | return 0; |
1667 | } |
1894 | } |
1668 | |
1895 | |
1669 | static MGVTBL coro_gensub_vtbl = { |
1896 | static void |
1670 | 0, 0, 0, 0, |
1897 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1671 | coro_gensub_free |
1898 | { |
1672 | }; |
1899 | SV *cb; |
1673 | #endif |
1900 | |
|
|
1901 | if (items) |
|
|
1902 | cb = arg [0]; |
|
|
1903 | else |
|
|
1904 | { |
|
|
1905 | struct coro *coro = SvSTATE_current; |
|
|
1906 | |
|
|
1907 | if (!coro->rouse_cb) |
|
|
1908 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1909 | |
|
|
1910 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1911 | coro->rouse_cb = 0; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | if (!SvROK (cb) |
|
|
1915 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1916 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1917 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1918 | |
|
|
1919 | { |
|
|
1920 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1921 | SV *data = (SV *)GENSUB_ARG; |
|
|
1922 | |
|
|
1923 | frame->data = (void *)data; |
|
|
1924 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
1925 | frame->check = slf_check_rouse_wait; |
|
|
1926 | } |
|
|
1927 | } |
|
|
1928 | |
|
|
1929 | static SV * |
|
|
1930 | coro_new_rouse_cb (pTHX) |
|
|
1931 | { |
|
|
1932 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1933 | struct coro *coro = SvSTATE_hv (hv); |
|
|
1934 | SV *data = newRV_inc ((SV *)hv); |
|
|
1935 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
1936 | |
|
|
1937 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
1938 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
1939 | |
|
|
1940 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1941 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
1942 | |
|
|
1943 | return cb; |
|
|
1944 | } |
|
|
1945 | |
|
|
1946 | /*****************************************************************************/ |
|
|
1947 | /* schedule-like-function opcode (SLF) */ |
|
|
1948 | |
|
|
1949 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1950 | static const CV *slf_cv; |
|
|
1951 | static SV **slf_argv; |
|
|
1952 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1953 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1954 | |
|
|
1955 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1956 | /* recreate the stack frame as perl will on following calls */ |
|
|
1957 | /* since entersub cleared the stack */ |
|
|
1958 | static OP * |
|
|
1959 | pp_restore (pTHX) |
|
|
1960 | { |
|
|
1961 | int i; |
|
|
1962 | SV **SP = PL_stack_base + slf_ax; |
|
|
1963 | |
|
|
1964 | PUSHMARK (SP); |
|
|
1965 | |
|
|
1966 | EXTEND (SP, slf_argc + 1); |
|
|
1967 | |
|
|
1968 | for (i = 0; i < slf_argc; ++i) |
|
|
1969 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1970 | |
|
|
1971 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1972 | |
|
|
1973 | RETURNOP (slf_restore.op_first); |
|
|
1974 | } |
|
|
1975 | |
|
|
1976 | static void |
|
|
1977 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1978 | { |
|
|
1979 | SV **arg = (SV **)slf_frame.data; |
|
|
1980 | |
|
|
1981 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1982 | } |
|
|
1983 | |
|
|
1984 | static void |
|
|
1985 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1986 | { |
|
|
1987 | if (items != 2) |
|
|
1988 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1989 | |
|
|
1990 | frame->prepare = slf_prepare_transfer; |
|
|
1991 | frame->check = slf_check_nop; |
|
|
1992 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1993 | } |
|
|
1994 | |
|
|
1995 | static void |
|
|
1996 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1997 | { |
|
|
1998 | frame->prepare = prepare_schedule; |
|
|
1999 | frame->check = slf_check_nop; |
|
|
2000 | } |
|
|
2001 | |
|
|
2002 | static void |
|
|
2003 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2004 | { |
|
|
2005 | frame->prepare = prepare_cede; |
|
|
2006 | frame->check = slf_check_nop; |
|
|
2007 | } |
|
|
2008 | |
|
|
2009 | static void |
|
|
2010 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2011 | { |
|
|
2012 | frame->prepare = prepare_cede_notself; |
|
|
2013 | frame->check = slf_check_nop; |
|
|
2014 | } |
|
|
2015 | |
|
|
2016 | /* |
|
|
2017 | * these not obviously related functions are all rolled into one |
|
|
2018 | * function to increase chances that they all will call transfer with the same |
|
|
2019 | * stack offset |
|
|
2020 | * SLF stands for "schedule-like-function". |
|
|
2021 | */ |
|
|
2022 | static OP * |
|
|
2023 | pp_slf (pTHX) |
|
|
2024 | { |
|
|
2025 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2026 | |
|
|
2027 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2028 | /* the latter happens when a new coro has been started */ |
|
|
2029 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2030 | if (expect_true (!slf_frame.prepare)) |
|
|
2031 | { |
|
|
2032 | /* first iteration */ |
|
|
2033 | dSP; |
|
|
2034 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2035 | int items = SP - arg; /* args without function object */ |
|
|
2036 | SV *gv = *sp; |
|
|
2037 | |
|
|
2038 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2039 | /* for us, divert to the real entersub */ |
|
|
2040 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2041 | || !GvCV (gv) |
|
|
2042 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2043 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2044 | |
|
|
2045 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2046 | { |
|
|
2047 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2048 | AV *av = GvAV (PL_defgv); |
|
|
2049 | arg = AvARRAY (av); |
|
|
2050 | items = AvFILLp (av) + 1; |
|
|
2051 | } |
|
|
2052 | |
|
|
2053 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2054 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2055 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2056 | |
|
|
2057 | /* pop args */ |
|
|
2058 | SP = PL_stack_base + POPMARK; |
|
|
2059 | |
|
|
2060 | PUTBACK; |
|
|
2061 | } |
|
|
2062 | |
|
|
2063 | /* now that we have a slf_frame, interpret it! */ |
|
|
2064 | /* we use a callback system not to make the code needlessly */ |
|
|
2065 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2066 | |
|
|
2067 | do |
|
|
2068 | { |
|
|
2069 | struct coro_transfer_args ta; |
|
|
2070 | |
|
|
2071 | slf_frame.prepare (aTHX_ &ta); |
|
|
2072 | TRANSFER (ta, 0); |
|
|
2073 | |
|
|
2074 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2075 | } |
|
|
2076 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2077 | |
|
|
2078 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2079 | |
|
|
2080 | /* exception handling */ |
|
|
2081 | if (expect_false (CORO_THROW)) |
|
|
2082 | { |
|
|
2083 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2084 | |
|
|
2085 | CORO_THROW = 0; |
|
|
2086 | sv_setsv (ERRSV, exception); |
|
|
2087 | croak (0); |
|
|
2088 | } |
|
|
2089 | |
|
|
2090 | /* return value handling - mostly like entersub */ |
|
|
2091 | /* make sure we put something on the stack in scalar context */ |
|
|
2092 | if (GIMME_V == G_SCALAR) |
|
|
2093 | { |
|
|
2094 | dSP; |
|
|
2095 | SV **bot = PL_stack_base + checkmark; |
|
|
2096 | |
|
|
2097 | if (sp == bot) /* too few, push undef */ |
|
|
2098 | bot [1] = &PL_sv_undef; |
|
|
2099 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2100 | bot [1] = *sp; |
|
|
2101 | |
|
|
2102 | SP = bot + 1; |
|
|
2103 | |
|
|
2104 | PUTBACK; |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | return NORMAL; |
|
|
2108 | } |
|
|
2109 | |
|
|
2110 | static void |
|
|
2111 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2112 | { |
|
|
2113 | int i; |
|
|
2114 | SV **arg = PL_stack_base + ax; |
|
|
2115 | int items = PL_stack_sp - arg + 1; |
|
|
2116 | |
|
|
2117 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2118 | |
|
|
2119 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2120 | && PL_op->op_ppaddr != pp_slf) |
|
|
2121 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2122 | |
|
|
2123 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2124 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2125 | slf_cv = cv; |
|
|
2126 | |
|
|
2127 | /* we patch the op, and then re-run the whole call */ |
|
|
2128 | /* we have to put the same argument on the stack for this to work */ |
|
|
2129 | /* and this will be done by pp_restore */ |
|
|
2130 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2131 | slf_restore.op_type = OP_CUSTOM; |
|
|
2132 | slf_restore.op_ppaddr = pp_restore; |
|
|
2133 | slf_restore.op_first = PL_op; |
|
|
2134 | |
|
|
2135 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2136 | |
|
|
2137 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2138 | { |
|
|
2139 | if (items > slf_arga) |
|
|
2140 | { |
|
|
2141 | slf_arga = items; |
|
|
2142 | free (slf_argv); |
|
|
2143 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2144 | } |
|
|
2145 | |
|
|
2146 | slf_argc = items; |
|
|
2147 | |
|
|
2148 | for (i = 0; i < items; ++i) |
|
|
2149 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2150 | } |
|
|
2151 | else |
|
|
2152 | slf_argc = 0; |
|
|
2153 | |
|
|
2154 | PL_op->op_ppaddr = pp_slf; |
|
|
2155 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2156 | |
|
|
2157 | PL_op = (OP *)&slf_restore; |
|
|
2158 | } |
1674 | |
2159 | |
1675 | /*****************************************************************************/ |
2160 | /*****************************************************************************/ |
1676 | /* PerlIO::cede */ |
2161 | /* PerlIO::cede */ |
1677 | |
2162 | |
1678 | typedef struct |
2163 | typedef struct |
… | |
… | |
1706 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2191 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1707 | double now = nvtime (); |
2192 | double now = nvtime (); |
1708 | |
2193 | |
1709 | if (now >= self->next) |
2194 | if (now >= self->next) |
1710 | { |
2195 | { |
1711 | api_cede (); |
2196 | api_cede (aTHX); |
1712 | self->next = now + self->every; |
2197 | self->next = now + self->every; |
1713 | } |
2198 | } |
1714 | |
2199 | |
1715 | return PerlIOBuf_flush (aTHX_ f); |
2200 | return PerlIOBuf_flush (aTHX_ f); |
1716 | } |
2201 | } |
… | |
… | |
1745 | PerlIOBuf_get_ptr, |
2230 | PerlIOBuf_get_ptr, |
1746 | PerlIOBuf_get_cnt, |
2231 | PerlIOBuf_get_cnt, |
1747 | PerlIOBuf_set_ptrcnt, |
2232 | PerlIOBuf_set_ptrcnt, |
1748 | }; |
2233 | }; |
1749 | |
2234 | |
|
|
2235 | /*****************************************************************************/ |
|
|
2236 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2237 | |
|
|
2238 | static SV * |
|
|
2239 | coro_waitarray_new (pTHX_ int count) |
|
|
2240 | { |
|
|
2241 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2242 | AV *av = newAV (); |
|
|
2243 | SV **ary; |
|
|
2244 | |
|
|
2245 | /* unfortunately, building manually saves memory */ |
|
|
2246 | Newx (ary, 2, SV *); |
|
|
2247 | AvALLOC (av) = ary; |
|
|
2248 | /*AvARRAY (av) = ary;*/ |
|
|
2249 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2250 | AvMAX (av) = 1; |
|
|
2251 | AvFILLp (av) = 0; |
|
|
2252 | ary [0] = newSViv (count); |
|
|
2253 | |
|
|
2254 | return newRV_noinc ((SV *)av); |
|
|
2255 | } |
|
|
2256 | |
|
|
2257 | /* semaphore */ |
|
|
2258 | |
|
|
2259 | static void |
|
|
2260 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2261 | { |
|
|
2262 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2263 | IV count = SvIVX (count_sv); |
|
|
2264 | |
|
|
2265 | count += adjust; |
|
|
2266 | SvIVX (count_sv) = count; |
|
|
2267 | |
|
|
2268 | /* now wake up as many waiters as are expected to lock */ |
|
|
2269 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2270 | { |
|
|
2271 | SV *cb; |
|
|
2272 | |
|
|
2273 | /* swap first two elements so we can shift a waiter */ |
|
|
2274 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2275 | AvARRAY (av)[1] = count_sv; |
|
|
2276 | cb = av_shift (av); |
|
|
2277 | |
|
|
2278 | if (SvOBJECT (cb)) |
|
|
2279 | { |
|
|
2280 | api_ready (aTHX_ cb); |
|
|
2281 | --count; |
|
|
2282 | } |
|
|
2283 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2284 | { |
|
|
2285 | dSP; |
|
|
2286 | PUSHMARK (SP); |
|
|
2287 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2288 | PUTBACK; |
|
|
2289 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2290 | } |
|
|
2291 | |
|
|
2292 | SvREFCNT_dec (cb); |
|
|
2293 | } |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | static void |
|
|
2297 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2298 | { |
|
|
2299 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2300 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2301 | } |
|
|
2302 | |
|
|
2303 | static int |
|
|
2304 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2305 | { |
|
|
2306 | AV *av = (AV *)frame->data; |
|
|
2307 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2308 | |
|
|
2309 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2310 | if (CORO_THROW) |
|
|
2311 | return 0; |
|
|
2312 | else if (SvIVX (count_sv) > 0) |
|
|
2313 | { |
|
|
2314 | SvSTATE_current->on_destroy = 0; |
|
|
2315 | |
|
|
2316 | if (acquire) |
|
|
2317 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2318 | else |
|
|
2319 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2320 | |
|
|
2321 | return 0; |
|
|
2322 | } |
|
|
2323 | else |
|
|
2324 | { |
|
|
2325 | int i; |
|
|
2326 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2327 | /* waiters list and only add us if we aren't in there already */ |
|
|
2328 | /* this avoids some degenerate memory usage cases */ |
|
|
2329 | |
|
|
2330 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2331 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2332 | return 1; |
|
|
2333 | |
|
|
2334 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2335 | return 1; |
|
|
2336 | } |
|
|
2337 | } |
|
|
2338 | |
|
|
2339 | static int |
|
|
2340 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2341 | { |
|
|
2342 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2343 | } |
|
|
2344 | |
|
|
2345 | static int |
|
|
2346 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2347 | { |
|
|
2348 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2349 | } |
|
|
2350 | |
|
|
2351 | static void |
|
|
2352 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2353 | { |
|
|
2354 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2355 | |
|
|
2356 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2357 | { |
|
|
2358 | frame->data = (void *)av; |
|
|
2359 | frame->prepare = prepare_nop; |
|
|
2360 | } |
|
|
2361 | else |
|
|
2362 | { |
|
|
2363 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2364 | |
|
|
2365 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2366 | frame->prepare = prepare_schedule; |
|
|
2367 | |
|
|
2368 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2369 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2370 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2371 | } |
|
|
2372 | } |
|
|
2373 | |
|
|
2374 | static void |
|
|
2375 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2376 | { |
|
|
2377 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2378 | frame->check = slf_check_semaphore_down; |
|
|
2379 | } |
|
|
2380 | |
|
|
2381 | static void |
|
|
2382 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2383 | { |
|
|
2384 | if (items >= 2) |
|
|
2385 | { |
|
|
2386 | /* callback form */ |
|
|
2387 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2388 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2389 | |
|
|
2390 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2391 | |
|
|
2392 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2393 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2394 | |
|
|
2395 | frame->prepare = prepare_nop; |
|
|
2396 | frame->check = slf_check_nop; |
|
|
2397 | } |
|
|
2398 | else |
|
|
2399 | { |
|
|
2400 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2401 | frame->check = slf_check_semaphore_wait; |
|
|
2402 | } |
|
|
2403 | } |
|
|
2404 | |
|
|
2405 | /* signal */ |
|
|
2406 | |
|
|
2407 | static void |
|
|
2408 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2409 | { |
|
|
2410 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2411 | |
|
|
2412 | /* now signal count waiters */ |
|
|
2413 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2414 | { |
|
|
2415 | SV *cb; |
|
|
2416 | |
|
|
2417 | /* swap first two elements so we can shift a waiter */ |
|
|
2418 | cb = AvARRAY (av)[0]; |
|
|
2419 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2420 | AvARRAY (av)[1] = cb; |
|
|
2421 | |
|
|
2422 | cb = av_shift (av); |
|
|
2423 | |
|
|
2424 | api_ready (aTHX_ cb); |
|
|
2425 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2426 | SvREFCNT_dec (cb); |
|
|
2427 | |
|
|
2428 | --count; |
|
|
2429 | } |
|
|
2430 | } |
|
|
2431 | |
|
|
2432 | static int |
|
|
2433 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2434 | { |
|
|
2435 | /* if we are about to throw, also stop waiting */ |
|
|
2436 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | static void |
|
|
2440 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2441 | { |
|
|
2442 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2443 | |
|
|
2444 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2445 | { |
|
|
2446 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2447 | frame->prepare = prepare_nop; |
|
|
2448 | frame->check = slf_check_nop; |
|
|
2449 | } |
|
|
2450 | else |
|
|
2451 | { |
|
|
2452 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2453 | |
|
|
2454 | av_push (av, waiter); |
|
|
2455 | |
|
|
2456 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2457 | frame->prepare = prepare_schedule; |
|
|
2458 | frame->check = slf_check_signal_wait; |
|
|
2459 | } |
|
|
2460 | } |
|
|
2461 | |
|
|
2462 | /*****************************************************************************/ |
|
|
2463 | /* Coro::AIO */ |
|
|
2464 | |
|
|
2465 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2466 | |
|
|
2467 | /* helper storage struct */ |
|
|
2468 | struct io_state |
|
|
2469 | { |
|
|
2470 | int errorno; |
|
|
2471 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2472 | int laststatval; |
|
|
2473 | Stat_t statcache; |
|
|
2474 | }; |
|
|
2475 | |
|
|
2476 | static void |
|
|
2477 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2478 | { |
|
|
2479 | dXSARGS; |
|
|
2480 | AV *state = (AV *)GENSUB_ARG; |
|
|
2481 | SV *coro = av_pop (state); |
|
|
2482 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2483 | |
|
|
2484 | av_extend (state, items - 1); |
|
|
2485 | |
|
|
2486 | sv_upgrade (data_sv, SVt_PV); |
|
|
2487 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2488 | SvPOK_only (data_sv); |
|
|
2489 | |
|
|
2490 | { |
|
|
2491 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2492 | |
|
|
2493 | data->errorno = errno; |
|
|
2494 | data->laststype = PL_laststype; |
|
|
2495 | data->laststatval = PL_laststatval; |
|
|
2496 | data->statcache = PL_statcache; |
|
|
2497 | } |
|
|
2498 | |
|
|
2499 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2500 | { |
|
|
2501 | int i; |
|
|
2502 | |
|
|
2503 | for (i = 0; i < items; ++i) |
|
|
2504 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2505 | } |
|
|
2506 | |
|
|
2507 | av_push (state, data_sv); |
|
|
2508 | |
|
|
2509 | api_ready (aTHX_ coro); |
|
|
2510 | SvREFCNT_dec (coro); |
|
|
2511 | SvREFCNT_dec ((AV *)state); |
|
|
2512 | } |
|
|
2513 | |
|
|
2514 | static int |
|
|
2515 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2516 | { |
|
|
2517 | AV *state = (AV *)frame->data; |
|
|
2518 | |
|
|
2519 | /* if we are about to throw, return early */ |
|
|
2520 | /* this does not cancel the aio request, but at least */ |
|
|
2521 | /* it quickly returns */ |
|
|
2522 | if (CORO_THROW) |
|
|
2523 | return 0; |
|
|
2524 | |
|
|
2525 | /* one element that is an RV? repeat! */ |
|
|
2526 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2527 | return 1; |
|
|
2528 | |
|
|
2529 | /* restore status */ |
|
|
2530 | { |
|
|
2531 | SV *data_sv = av_pop (state); |
|
|
2532 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2533 | |
|
|
2534 | errno = data->errorno; |
|
|
2535 | PL_laststype = data->laststype; |
|
|
2536 | PL_laststatval = data->laststatval; |
|
|
2537 | PL_statcache = data->statcache; |
|
|
2538 | |
|
|
2539 | SvREFCNT_dec (data_sv); |
|
|
2540 | } |
|
|
2541 | |
|
|
2542 | /* push result values */ |
|
|
2543 | { |
|
|
2544 | dSP; |
|
|
2545 | int i; |
|
|
2546 | |
|
|
2547 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2548 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2549 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2550 | |
|
|
2551 | PUTBACK; |
|
|
2552 | } |
|
|
2553 | |
|
|
2554 | return 0; |
|
|
2555 | } |
|
|
2556 | |
|
|
2557 | static void |
|
|
2558 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2559 | { |
|
|
2560 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2561 | SV *coro_hv = SvRV (coro_current); |
|
|
2562 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2563 | |
|
|
2564 | /* put our coroutine id on the state arg */ |
|
|
2565 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2566 | |
|
|
2567 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2568 | if (coro->prio) |
|
|
2569 | { |
|
|
2570 | dSP; |
|
|
2571 | |
|
|
2572 | static SV *prio_cv; |
|
|
2573 | static SV *prio_sv; |
|
|
2574 | |
|
|
2575 | if (expect_false (!prio_cv)) |
|
|
2576 | { |
|
|
2577 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2578 | prio_sv = newSViv (0); |
|
|
2579 | } |
|
|
2580 | |
|
|
2581 | PUSHMARK (SP); |
|
|
2582 | sv_setiv (prio_sv, coro->prio); |
|
|
2583 | XPUSHs (prio_sv); |
|
|
2584 | |
|
|
2585 | PUTBACK; |
|
|
2586 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2587 | } |
|
|
2588 | |
|
|
2589 | /* now call the original request */ |
|
|
2590 | { |
|
|
2591 | dSP; |
|
|
2592 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2593 | int i; |
|
|
2594 | |
|
|
2595 | PUSHMARK (SP); |
|
|
2596 | |
|
|
2597 | /* first push all args to the stack */ |
|
|
2598 | EXTEND (SP, items + 1); |
|
|
2599 | |
|
|
2600 | for (i = 0; i < items; ++i) |
|
|
2601 | PUSHs (arg [i]); |
|
|
2602 | |
|
|
2603 | /* now push the callback closure */ |
|
|
2604 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2605 | |
|
|
2606 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2607 | PUTBACK; |
|
|
2608 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2609 | } |
|
|
2610 | |
|
|
2611 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2612 | frame->data = (void *)state; |
|
|
2613 | frame->prepare = prepare_schedule; |
|
|
2614 | frame->check = slf_check_aio_req; |
|
|
2615 | } |
|
|
2616 | |
|
|
2617 | static void |
|
|
2618 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2619 | { |
|
|
2620 | dXSARGS; |
|
|
2621 | |
|
|
2622 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2623 | |
|
|
2624 | XSRETURN_EMPTY; |
|
|
2625 | } |
|
|
2626 | |
|
|
2627 | /*****************************************************************************/ |
1750 | |
2628 | |
1751 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2629 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1752 | |
2630 | |
1753 | PROTOTYPES: DISABLE |
2631 | PROTOTYPES: DISABLE |
1754 | |
2632 | |
1755 | BOOT: |
2633 | BOOT: |
1756 | { |
2634 | { |
1757 | #ifdef USE_ITHREADS |
2635 | #ifdef USE_ITHREADS |
1758 | MUTEX_INIT (&coro_lock); |
2636 | # if CORO_PTHREAD |
|
|
2637 | coro_thx = PERL_GET_CONTEXT; |
|
|
2638 | # endif |
1759 | #endif |
2639 | #endif |
1760 | BOOT_PAGESIZE; |
2640 | BOOT_PAGESIZE; |
1761 | |
2641 | |
1762 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2642 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1763 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2643 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
… | |
… | |
1781 | main_top_env = PL_top_env; |
2661 | main_top_env = PL_top_env; |
1782 | |
2662 | |
1783 | while (main_top_env->je_prev) |
2663 | while (main_top_env->je_prev) |
1784 | main_top_env = main_top_env->je_prev; |
2664 | main_top_env = main_top_env->je_prev; |
1785 | |
2665 | |
|
|
2666 | { |
|
|
2667 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2668 | |
|
|
2669 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2670 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2671 | newSVpv ("coro_slf", 0), 0); |
|
|
2672 | |
|
|
2673 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2674 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2675 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2676 | } |
|
|
2677 | |
1786 | coroapi.ver = CORO_API_VERSION; |
2678 | coroapi.ver = CORO_API_VERSION; |
1787 | coroapi.rev = CORO_API_REVISION; |
2679 | coroapi.rev = CORO_API_REVISION; |
|
|
2680 | |
1788 | coroapi.transfer = api_transfer; |
2681 | coroapi.transfer = api_transfer; |
|
|
2682 | |
|
|
2683 | coroapi.sv_state = SvSTATE_; |
|
|
2684 | coroapi.execute_slf = api_execute_slf; |
|
|
2685 | coroapi.prepare_nop = prepare_nop; |
|
|
2686 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2687 | coroapi.prepare_cede = prepare_cede; |
|
|
2688 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1789 | |
2689 | |
1790 | { |
2690 | { |
1791 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2691 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1792 | |
2692 | |
1793 | if (!svp) croak ("Time::HiRes is required"); |
2693 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
1799 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2699 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1800 | } |
2700 | } |
1801 | |
2701 | |
1802 | SV * |
2702 | SV * |
1803 | new (char *klass, ...) |
2703 | new (char *klass, ...) |
|
|
2704 | ALIAS: |
|
|
2705 | Coro::new = 1 |
1804 | CODE: |
2706 | CODE: |
1805 | { |
2707 | { |
1806 | struct coro *coro; |
2708 | struct coro *coro; |
1807 | MAGIC *mg; |
2709 | MAGIC *mg; |
1808 | HV *hv; |
2710 | HV *hv; |
|
|
2711 | CV *cb; |
1809 | int i; |
2712 | int i; |
|
|
2713 | |
|
|
2714 | if (items > 1) |
|
|
2715 | { |
|
|
2716 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2717 | |
|
|
2718 | if (!ix) |
|
|
2719 | { |
|
|
2720 | if (CvISXSUB (cb)) |
|
|
2721 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2722 | |
|
|
2723 | if (!CvROOT (cb)) |
|
|
2724 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2725 | } |
|
|
2726 | } |
1810 | |
2727 | |
1811 | Newz (0, coro, 1, struct coro); |
2728 | Newz (0, coro, 1, struct coro); |
1812 | coro->args = newAV (); |
2729 | coro->args = newAV (); |
1813 | coro->flags = CF_NEW; |
2730 | coro->flags = CF_NEW; |
1814 | |
2731 | |
… | |
… | |
1819 | coro->hv = hv = newHV (); |
2736 | coro->hv = hv = newHV (); |
1820 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2737 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
1821 | mg->mg_flags |= MGf_DUP; |
2738 | mg->mg_flags |= MGf_DUP; |
1822 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2739 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1823 | |
2740 | |
|
|
2741 | if (items > 1) |
|
|
2742 | { |
1824 | av_extend (coro->args, items - 1); |
2743 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
2744 | |
|
|
2745 | if (ix) |
|
|
2746 | { |
|
|
2747 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2748 | cb = cv_coro_run; |
|
|
2749 | } |
|
|
2750 | |
|
|
2751 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2752 | |
1825 | for (i = 1; i < items; i++) |
2753 | for (i = 2; i < items; i++) |
1826 | av_push (coro->args, newSVsv (ST (i))); |
2754 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2755 | } |
1827 | } |
2756 | } |
1828 | OUTPUT: |
2757 | OUTPUT: |
1829 | RETVAL |
2758 | RETVAL |
1830 | |
2759 | |
1831 | # these not obviously related functions are all rolled into the same xs |
|
|
1832 | # function to increase chances that they all will call transfer with the same |
|
|
1833 | # stack offset |
|
|
1834 | void |
2760 | void |
1835 | _set_stacklevel (...) |
2761 | transfer (...) |
1836 | ALIAS: |
2762 | PROTOTYPE: $$ |
1837 | Coro::State::transfer = 1 |
2763 | CODE: |
1838 | Coro::schedule = 2 |
2764 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1839 | Coro::cede = 3 |
|
|
1840 | Coro::cede_notself = 4 |
|
|
1841 | CODE: |
|
|
1842 | { |
|
|
1843 | struct transfer_args ta; |
|
|
1844 | |
|
|
1845 | PUTBACK; |
|
|
1846 | switch (ix) |
|
|
1847 | { |
|
|
1848 | case 0: |
|
|
1849 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1850 | ta.next = 0; |
|
|
1851 | break; |
|
|
1852 | |
|
|
1853 | case 1: |
|
|
1854 | if (items != 2) |
|
|
1855 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1856 | |
|
|
1857 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1858 | break; |
|
|
1859 | |
|
|
1860 | case 2: |
|
|
1861 | prepare_schedule (aTHX_ &ta); |
|
|
1862 | break; |
|
|
1863 | |
|
|
1864 | case 3: |
|
|
1865 | prepare_cede (aTHX_ &ta); |
|
|
1866 | break; |
|
|
1867 | |
|
|
1868 | case 4: |
|
|
1869 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1870 | XSRETURN_EMPTY; |
|
|
1871 | |
|
|
1872 | break; |
|
|
1873 | } |
|
|
1874 | SPAGAIN; |
|
|
1875 | |
|
|
1876 | BARRIER; |
|
|
1877 | PUTBACK; |
|
|
1878 | TRANSFER (ta, 0); |
|
|
1879 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1880 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1881 | } |
|
|
1882 | |
2765 | |
1883 | bool |
2766 | bool |
1884 | _destroy (SV *coro_sv) |
2767 | _destroy (SV *coro_sv) |
1885 | CODE: |
2768 | CODE: |
1886 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2769 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1893 | CODE: |
2776 | CODE: |
1894 | _exit (code); |
2777 | _exit (code); |
1895 | |
2778 | |
1896 | int |
2779 | int |
1897 | cctx_stacksize (int new_stacksize = 0) |
2780 | cctx_stacksize (int new_stacksize = 0) |
|
|
2781 | PROTOTYPE: ;$ |
1898 | CODE: |
2782 | CODE: |
1899 | RETVAL = cctx_stacksize; |
2783 | RETVAL = cctx_stacksize; |
1900 | if (new_stacksize) |
2784 | if (new_stacksize) |
1901 | { |
2785 | { |
1902 | cctx_stacksize = new_stacksize; |
2786 | cctx_stacksize = new_stacksize; |
… | |
… | |
1905 | OUTPUT: |
2789 | OUTPUT: |
1906 | RETVAL |
2790 | RETVAL |
1907 | |
2791 | |
1908 | int |
2792 | int |
1909 | cctx_max_idle (int max_idle = 0) |
2793 | cctx_max_idle (int max_idle = 0) |
|
|
2794 | PROTOTYPE: ;$ |
1910 | CODE: |
2795 | CODE: |
1911 | RETVAL = cctx_max_idle; |
2796 | RETVAL = cctx_max_idle; |
1912 | if (max_idle > 1) |
2797 | if (max_idle > 1) |
1913 | cctx_max_idle = max_idle; |
2798 | cctx_max_idle = max_idle; |
1914 | OUTPUT: |
2799 | OUTPUT: |
1915 | RETVAL |
2800 | RETVAL |
1916 | |
2801 | |
1917 | int |
2802 | int |
1918 | cctx_count () |
2803 | cctx_count () |
|
|
2804 | PROTOTYPE: |
1919 | CODE: |
2805 | CODE: |
1920 | RETVAL = cctx_count; |
2806 | RETVAL = cctx_count; |
1921 | OUTPUT: |
2807 | OUTPUT: |
1922 | RETVAL |
2808 | RETVAL |
1923 | |
2809 | |
1924 | int |
2810 | int |
1925 | cctx_idle () |
2811 | cctx_idle () |
|
|
2812 | PROTOTYPE: |
1926 | CODE: |
2813 | CODE: |
1927 | RETVAL = cctx_idle; |
2814 | RETVAL = cctx_idle; |
1928 | OUTPUT: |
2815 | OUTPUT: |
1929 | RETVAL |
2816 | RETVAL |
1930 | |
2817 | |
1931 | void |
2818 | void |
1932 | list () |
2819 | list () |
|
|
2820 | PROTOTYPE: |
1933 | PPCODE: |
2821 | PPCODE: |
1934 | { |
2822 | { |
1935 | struct coro *coro; |
2823 | struct coro *coro; |
1936 | for (coro = coro_first; coro; coro = coro->next) |
2824 | for (coro = coro_first; coro; coro = coro->next) |
1937 | if (coro->hv) |
2825 | if (coro->hv) |
… | |
… | |
1996 | RETVAL = boolSV (coro->flags & ix); |
2884 | RETVAL = boolSV (coro->flags & ix); |
1997 | OUTPUT: |
2885 | OUTPUT: |
1998 | RETVAL |
2886 | RETVAL |
1999 | |
2887 | |
2000 | void |
2888 | void |
|
|
2889 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2890 | PROTOTYPE: $;$ |
|
|
2891 | CODE: |
|
|
2892 | { |
|
|
2893 | struct coro *current = SvSTATE_current; |
|
|
2894 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
2895 | SvREFCNT_dec (*throwp); |
|
|
2896 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2897 | } |
|
|
2898 | |
|
|
2899 | void |
2001 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2900 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2901 | PROTOTYPE: $;$ |
|
|
2902 | C_ARGS: aTHX_ coro, flags |
2002 | |
2903 | |
2003 | SV * |
2904 | SV * |
2004 | has_cctx (Coro::State coro) |
2905 | has_cctx (Coro::State coro) |
2005 | PROTOTYPE: $ |
2906 | PROTOTYPE: $ |
2006 | CODE: |
2907 | CODE: |
… | |
… | |
2030 | OUTPUT: |
2931 | OUTPUT: |
2031 | RETVAL |
2932 | RETVAL |
2032 | |
2933 | |
2033 | void |
2934 | void |
2034 | force_cctx () |
2935 | force_cctx () |
|
|
2936 | PROTOTYPE: |
2035 | CODE: |
2937 | CODE: |
2036 | struct coro *coro = SvSTATE (coro_current); |
|
|
2037 | coro->cctx->idle_sp = 0; |
2938 | SvSTATE_current->cctx->idle_sp = 0; |
2038 | |
2939 | |
2039 | void |
2940 | void |
2040 | swap_defsv (Coro::State self) |
2941 | swap_defsv (Coro::State self) |
2041 | PROTOTYPE: $ |
2942 | PROTOTYPE: $ |
2042 | ALIAS: |
2943 | ALIAS: |
2043 | swap_defav = 1 |
2944 | swap_defav = 1 |
2044 | CODE: |
2945 | CODE: |
2045 | if (!self->slot) |
2946 | if (!self->slot) |
2046 | croak ("cannot swap state with coroutine that has no saved state"); |
2947 | croak ("cannot swap state with coroutine that has no saved state,"); |
2047 | else |
2948 | else |
2048 | { |
2949 | { |
2049 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2950 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2050 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2951 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2051 | |
2952 | |
2052 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2953 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2053 | } |
2954 | } |
2054 | |
2955 | |
|
|
2956 | |
2055 | MODULE = Coro::State PACKAGE = Coro |
2957 | MODULE = Coro::State PACKAGE = Coro |
2056 | |
2958 | |
2057 | BOOT: |
2959 | BOOT: |
2058 | { |
2960 | { |
2059 | int i; |
2961 | int i; |
2060 | |
2962 | |
2061 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2963 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2062 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2964 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2063 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2965 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2064 | |
2966 | cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); |
|
|
2967 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2065 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
2968 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2066 | SvREADONLY_on (coro_current); |
2969 | |
|
|
2970 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
2971 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
2972 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
2973 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2067 | |
2974 | |
2068 | coro_stash = gv_stashpv ("Coro", TRUE); |
2975 | coro_stash = gv_stashpv ("Coro", TRUE); |
2069 | |
2976 | |
2070 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2977 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2071 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2978 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
… | |
… | |
2076 | |
2983 | |
2077 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2984 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2078 | coro_ready[i] = newAV (); |
2985 | coro_ready[i] = newAV (); |
2079 | |
2986 | |
2080 | { |
2987 | { |
2081 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
2988 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2082 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2083 | |
2989 | |
2084 | coroapi.schedule = api_schedule; |
2990 | coroapi.schedule = api_schedule; |
2085 | coroapi.cede = api_cede; |
2991 | coroapi.cede = api_cede; |
2086 | coroapi.cede_notself = api_cede_notself; |
2992 | coroapi.cede_notself = api_cede_notself; |
2087 | coroapi.ready = api_ready; |
2993 | coroapi.ready = api_ready; |
2088 | coroapi.is_ready = api_is_ready; |
2994 | coroapi.is_ready = api_is_ready; |
2089 | coroapi.nready = &coro_nready; |
2995 | coroapi.nready = coro_nready; |
2090 | coroapi.current = coro_current; |
2996 | coroapi.current = coro_current; |
2091 | |
2997 | |
2092 | GCoroAPI = &coroapi; |
2998 | /*GCoroAPI = &coroapi;*/ |
2093 | sv_setiv (sv, (IV)&coroapi); |
2999 | sv_setiv (sv, (IV)&coroapi); |
2094 | SvREADONLY_on (sv); |
3000 | SvREADONLY_on (sv); |
2095 | } |
3001 | } |
2096 | } |
3002 | } |
|
|
3003 | |
|
|
3004 | void |
|
|
3005 | schedule (...) |
|
|
3006 | CODE: |
|
|
3007 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3008 | |
|
|
3009 | void |
|
|
3010 | cede (...) |
|
|
3011 | CODE: |
|
|
3012 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3013 | |
|
|
3014 | void |
|
|
3015 | cede_notself (...) |
|
|
3016 | CODE: |
|
|
3017 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2097 | |
3018 | |
2098 | void |
3019 | void |
2099 | _set_current (SV *current) |
3020 | _set_current (SV *current) |
2100 | PROTOTYPE: $ |
3021 | PROTOTYPE: $ |
2101 | CODE: |
3022 | CODE: |
… | |
… | |
2104 | |
3025 | |
2105 | void |
3026 | void |
2106 | _set_readyhook (SV *hook) |
3027 | _set_readyhook (SV *hook) |
2107 | PROTOTYPE: $ |
3028 | PROTOTYPE: $ |
2108 | CODE: |
3029 | CODE: |
2109 | LOCK; |
|
|
2110 | SvREFCNT_dec (coro_readyhook); |
3030 | SvREFCNT_dec (coro_readyhook); |
2111 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3031 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2112 | UNLOCK; |
|
|
2113 | |
3032 | |
2114 | int |
3033 | int |
2115 | prio (Coro::State coro, int newprio = 0) |
3034 | prio (Coro::State coro, int newprio = 0) |
|
|
3035 | PROTOTYPE: $;$ |
2116 | ALIAS: |
3036 | ALIAS: |
2117 | nice = 1 |
3037 | nice = 1 |
2118 | CODE: |
3038 | CODE: |
2119 | { |
3039 | { |
2120 | RETVAL = coro->prio; |
3040 | RETVAL = coro->prio; |
… | |
… | |
2135 | |
3055 | |
2136 | SV * |
3056 | SV * |
2137 | ready (SV *self) |
3057 | ready (SV *self) |
2138 | PROTOTYPE: $ |
3058 | PROTOTYPE: $ |
2139 | CODE: |
3059 | CODE: |
2140 | RETVAL = boolSV (api_ready (self)); |
3060 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2141 | OUTPUT: |
3061 | OUTPUT: |
2142 | RETVAL |
3062 | RETVAL |
2143 | |
3063 | |
2144 | int |
3064 | int |
2145 | nready (...) |
3065 | nready (...) |
… | |
… | |
2148 | RETVAL = coro_nready; |
3068 | RETVAL = coro_nready; |
2149 | OUTPUT: |
3069 | OUTPUT: |
2150 | RETVAL |
3070 | RETVAL |
2151 | |
3071 | |
2152 | void |
3072 | void |
2153 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3073 | _pool_handler (...) |
2154 | PROTOTYPE: $;$ |
3074 | CODE: |
2155 | CODE: |
3075 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
2156 | SvREFCNT_dec (self->throw); |
|
|
2157 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2158 | |
3076 | |
2159 | # for async_pool speedup |
|
|
2160 | void |
3077 | void |
2161 | _pool_1 (SV *cb) |
3078 | async_pool (SV *cv, ...) |
|
|
3079 | PROTOTYPE: &@ |
|
|
3080 | PPCODE: |
|
|
3081 | { |
|
|
3082 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3083 | AV *av = newAV (); |
|
|
3084 | SV *cb = ST (0); |
|
|
3085 | int i; |
|
|
3086 | |
|
|
3087 | av_extend (av, items - 2); |
|
|
3088 | for (i = 1; i < items; ++i) |
|
|
3089 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3090 | |
|
|
3091 | if ((SV *)hv == &PL_sv_undef) |
|
|
3092 | { |
|
|
3093 | PUSHMARK (SP); |
|
|
3094 | EXTEND (SP, 2); |
|
|
3095 | PUSHs (sv_Coro); |
|
|
3096 | PUSHs ((SV *)cv_pool_handler); |
|
|
3097 | PUTBACK; |
|
|
3098 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3099 | SPAGAIN; |
|
|
3100 | |
|
|
3101 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
|
|
3102 | } |
|
|
3103 | |
|
|
3104 | { |
|
|
3105 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3106 | |
|
|
3107 | assert (!coro->invoke_cb); |
|
|
3108 | assert (!coro->invoke_av); |
|
|
3109 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3110 | coro->invoke_av = av; |
|
|
3111 | } |
|
|
3112 | |
|
|
3113 | api_ready (aTHX_ (SV *)hv); |
|
|
3114 | |
|
|
3115 | if (GIMME_V != G_VOID) |
|
|
3116 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3117 | else |
|
|
3118 | SvREFCNT_dec (hv); |
|
|
3119 | } |
|
|
3120 | |
|
|
3121 | SV * |
|
|
3122 | rouse_cb () |
|
|
3123 | PROTOTYPE: |
2162 | CODE: |
3124 | CODE: |
2163 | { |
3125 | RETVAL = coro_new_rouse_cb (aTHX); |
2164 | struct coro *coro = SvSTATE (coro_current); |
|
|
2165 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2166 | AV *defav = GvAV (PL_defgv); |
|
|
2167 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2168 | AV *invoke_av; |
|
|
2169 | int i, len; |
|
|
2170 | |
|
|
2171 | if (!invoke) |
|
|
2172 | { |
|
|
2173 | SV *old = PL_diehook; |
|
|
2174 | PL_diehook = 0; |
|
|
2175 | SvREFCNT_dec (old); |
|
|
2176 | croak ("\3async_pool terminate\2\n"); |
|
|
2177 | } |
|
|
2178 | |
|
|
2179 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2180 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2181 | |
|
|
2182 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2183 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2184 | |
|
|
2185 | invoke_av = (AV *)SvRV (invoke); |
|
|
2186 | len = av_len (invoke_av); |
|
|
2187 | |
|
|
2188 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2189 | |
|
|
2190 | if (len > 0) |
|
|
2191 | { |
|
|
2192 | av_fill (defav, len - 1); |
|
|
2193 | for (i = 0; i < len; ++i) |
|
|
2194 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2195 | } |
|
|
2196 | |
|
|
2197 | SvREFCNT_dec (invoke); |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | void |
|
|
2201 | _pool_2 (SV *cb) |
|
|
2202 | CODE: |
|
|
2203 | { |
|
|
2204 | struct coro *coro = SvSTATE (coro_current); |
|
|
2205 | |
|
|
2206 | sv_setsv (cb, &PL_sv_undef); |
|
|
2207 | |
|
|
2208 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2209 | coro->saved_deffh = 0; |
|
|
2210 | |
|
|
2211 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2212 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2213 | { |
|
|
2214 | SV *old = PL_diehook; |
|
|
2215 | PL_diehook = 0; |
|
|
2216 | SvREFCNT_dec (old); |
|
|
2217 | croak ("\3async_pool terminate\2\n"); |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | av_clear (GvAV (PL_defgv)); |
|
|
2221 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2222 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2223 | |
|
|
2224 | coro->prio = 0; |
|
|
2225 | |
|
|
2226 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2227 | api_trace (coro_current, 0); |
|
|
2228 | |
|
|
2229 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | #if 0 |
|
|
2233 | |
|
|
2234 | void |
|
|
2235 | _generator_call (...) |
|
|
2236 | PROTOTYPE: @ |
|
|
2237 | PPCODE: |
|
|
2238 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2239 | xxxx |
|
|
2240 | abort (); |
|
|
2241 | |
|
|
2242 | SV * |
|
|
2243 | gensub (SV *sub, ...) |
|
|
2244 | PROTOTYPE: &;@ |
|
|
2245 | CODE: |
|
|
2246 | { |
|
|
2247 | struct coro *coro; |
|
|
2248 | MAGIC *mg; |
|
|
2249 | CV *xcv; |
|
|
2250 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2251 | int i; |
|
|
2252 | |
|
|
2253 | CvGV (ncv) = CvGV (cv); |
|
|
2254 | CvFILE (ncv) = CvFILE (cv); |
|
|
2255 | |
|
|
2256 | Newz (0, coro, 1, struct coro); |
|
|
2257 | coro->args = newAV (); |
|
|
2258 | coro->flags = CF_NEW; |
|
|
2259 | |
|
|
2260 | av_extend (coro->args, items - 1); |
|
|
2261 | for (i = 1; i < items; i++) |
|
|
2262 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2263 | |
|
|
2264 | CvISXSUB_on (ncv); |
|
|
2265 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2266 | |
|
|
2267 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2268 | |
|
|
2269 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2270 | CvANON_on (ncv); |
|
|
2271 | |
|
|
2272 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2273 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2274 | } |
|
|
2275 | OUTPUT: |
3126 | OUTPUT: |
2276 | RETVAL |
3127 | RETVAL |
2277 | |
3128 | |
2278 | #endif |
|
|
2279 | |
|
|
2280 | |
|
|
2281 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2282 | |
|
|
2283 | void |
3129 | void |
2284 | _get_state (SV *self) |
3130 | rouse_wait (...) |
|
|
3131 | PROTOTYPE: ;$ |
2285 | PPCODE: |
3132 | PPCODE: |
2286 | { |
3133 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2287 | AV *defav = GvAV (PL_defgv); |
|
|
2288 | AV *av = newAV (); |
|
|
2289 | int i; |
|
|
2290 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2291 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2292 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2293 | SvPOK_only (data_sv); |
|
|
2294 | |
3134 | |
2295 | data->errorno = errno; |
|
|
2296 | data->laststype = PL_laststype; |
|
|
2297 | data->laststatval = PL_laststatval; |
|
|
2298 | data->statcache = PL_statcache; |
|
|
2299 | |
3135 | |
2300 | av_extend (av, AvFILLp (defav) + 1 + 1); |
3136 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2301 | |
3137 | |
2302 | for (i = 0; i <= AvFILLp (defav); ++i) |
3138 | BOOT: |
2303 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3139 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2304 | |
3140 | |
2305 | av_push (av, data_sv); |
|
|
2306 | |
3141 | |
2307 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
3142 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2308 | |
3143 | |
2309 | api_ready (self); |
3144 | SV * |
2310 | } |
3145 | new (SV *klass, SV *count = 0) |
|
|
3146 | CODE: |
|
|
3147 | RETVAL = sv_bless ( |
|
|
3148 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
|
|
3149 | GvSTASH (CvGV (cv)) |
|
|
3150 | ); |
|
|
3151 | OUTPUT: |
|
|
3152 | RETVAL |
|
|
3153 | |
|
|
3154 | # helper for Coro::Channel |
|
|
3155 | SV * |
|
|
3156 | _alloc (int count) |
|
|
3157 | CODE: |
|
|
3158 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3159 | OUTPUT: |
|
|
3160 | RETVAL |
|
|
3161 | |
|
|
3162 | SV * |
|
|
3163 | count (SV *self) |
|
|
3164 | CODE: |
|
|
3165 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3166 | OUTPUT: |
|
|
3167 | RETVAL |
2311 | |
3168 | |
2312 | void |
3169 | void |
2313 | _set_state (SV *state) |
3170 | up (SV *self, int adjust = 1) |
2314 | PROTOTYPE: $ |
3171 | ALIAS: |
|
|
3172 | adjust = 1 |
|
|
3173 | CODE: |
|
|
3174 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3175 | |
|
|
3176 | void |
|
|
3177 | down (...) |
|
|
3178 | CODE: |
|
|
3179 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3180 | |
|
|
3181 | void |
|
|
3182 | wait (...) |
|
|
3183 | CODE: |
|
|
3184 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3185 | |
|
|
3186 | void |
|
|
3187 | try (SV *self) |
|
|
3188 | PPCODE: |
|
|
3189 | { |
|
|
3190 | AV *av = (AV *)SvRV (self); |
|
|
3191 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3192 | IV count = SvIVX (count_sv); |
|
|
3193 | |
|
|
3194 | if (count > 0) |
|
|
3195 | { |
|
|
3196 | --count; |
|
|
3197 | SvIVX (count_sv) = count; |
|
|
3198 | XSRETURN_YES; |
|
|
3199 | } |
|
|
3200 | else |
|
|
3201 | XSRETURN_NO; |
|
|
3202 | } |
|
|
3203 | |
|
|
3204 | void |
|
|
3205 | waiters (SV *self) |
|
|
3206 | PPCODE: |
|
|
3207 | { |
|
|
3208 | AV *av = (AV *)SvRV (self); |
|
|
3209 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3210 | |
|
|
3211 | if (GIMME_V == G_SCALAR) |
|
|
3212 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3213 | else |
|
|
3214 | { |
|
|
3215 | int i; |
|
|
3216 | EXTEND (SP, wcount); |
|
|
3217 | for (i = 1; i <= wcount; ++i) |
|
|
3218 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3219 | } |
|
|
3220 | } |
|
|
3221 | |
|
|
3222 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3223 | |
|
|
3224 | SV * |
|
|
3225 | new (SV *klass) |
2315 | PPCODE: |
3226 | CODE: |
|
|
3227 | RETVAL = sv_bless ( |
|
|
3228 | coro_waitarray_new (aTHX_ 0), |
|
|
3229 | GvSTASH (CvGV (cv)) |
|
|
3230 | ); |
|
|
3231 | OUTPUT: |
|
|
3232 | RETVAL |
|
|
3233 | |
|
|
3234 | void |
|
|
3235 | wait (...) |
|
|
3236 | CODE: |
|
|
3237 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3238 | |
|
|
3239 | void |
|
|
3240 | broadcast (SV *self) |
|
|
3241 | CODE: |
2316 | { |
3242 | { |
2317 | AV *av = (AV *)SvRV (state); |
3243 | AV *av = (AV *)SvRV (self); |
2318 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
3244 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
2319 | int i; |
3245 | } |
2320 | |
3246 | |
2321 | errno = data->errorno; |
3247 | void |
2322 | PL_laststype = data->laststype; |
3248 | send (SV *self) |
2323 | PL_laststatval = data->laststatval; |
3249 | CODE: |
2324 | PL_statcache = data->statcache; |
3250 | { |
|
|
3251 | AV *av = (AV *)SvRV (self); |
2325 | |
3252 | |
2326 | EXTEND (SP, AvFILLp (av)); |
3253 | if (AvFILLp (av)) |
2327 | for (i = 0; i < AvFILLp (av); ++i) |
3254 | coro_signal_wake (aTHX_ av, 1); |
2328 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
3255 | else |
|
|
3256 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2329 | } |
3257 | } |
|
|
3258 | |
|
|
3259 | IV |
|
|
3260 | awaited (SV *self) |
|
|
3261 | CODE: |
|
|
3262 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3263 | OUTPUT: |
|
|
3264 | RETVAL |
2330 | |
3265 | |
2331 | |
3266 | |
2332 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3267 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2333 | |
3268 | |
2334 | BOOT: |
3269 | BOOT: |
2335 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3270 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2336 | |
3271 | |
2337 | SV * |
3272 | void |
2338 | _schedule (...) |
3273 | _schedule (...) |
2339 | PROTOTYPE: @ |
|
|
2340 | CODE: |
3274 | CODE: |
2341 | { |
3275 | { |
2342 | static int incede; |
3276 | static int incede; |
2343 | |
3277 | |
2344 | api_cede_notself (); |
3278 | api_cede_notself (aTHX); |
2345 | |
3279 | |
2346 | ++incede; |
3280 | ++incede; |
2347 | while (coro_nready >= incede && api_cede ()) |
3281 | while (coro_nready >= incede && api_cede (aTHX)) |
2348 | ; |
3282 | ; |
2349 | |
3283 | |
2350 | sv_setsv (sv_activity, &PL_sv_undef); |
3284 | sv_setsv (sv_activity, &PL_sv_undef); |
2351 | if (coro_nready >= incede) |
3285 | if (coro_nready >= incede) |
2352 | { |
3286 | { |
2353 | PUSHMARK (SP); |
3287 | PUSHMARK (SP); |
2354 | PUTBACK; |
3288 | PUTBACK; |
2355 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3289 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2356 | SPAGAIN; |
|
|
2357 | } |
3290 | } |
2358 | |
3291 | |
2359 | --incede; |
3292 | --incede; |
2360 | } |
3293 | } |
2361 | |
3294 | |
2362 | |
3295 | |
2363 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3296 | MODULE = Coro::State PACKAGE = Coro::AIO |
2364 | |
3297 | |
2365 | BOOT: |
3298 | void |
2366 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3299 | _register (char *target, char *proto, SV *req) |
|
|
3300 | CODE: |
|
|
3301 | { |
|
|
3302 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3303 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3304 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3305 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3306 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3307 | } |
|
|
3308 | |