… | |
… | |
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) |
|
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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 |
|
|
106 | #ifndef Newx |
|
|
107 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
|
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108 | #endif |
103 | |
109 | |
104 | /* 5.8.7 */ |
110 | /* 5.8.7 */ |
105 | #ifndef SvRV_set |
111 | #ifndef SvRV_set |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
112 | # define SvRV_set(s,v) SvRV(s) = (v) |
107 | #endif |
113 | #endif |
… | |
… | |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
125 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
120 | #endif |
126 | #endif |
121 | |
127 | |
122 | /* The next macros try to return the current stack pointer, in an as |
128 | /* The next macros try to return the current stack pointer, in an as |
123 | * portable way as possible. */ |
129 | * portable way as possible. */ |
|
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130 | #if __GNUC__ >= 4 |
|
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131 | # define dSTACKLEVEL int stacklevel_dummy |
|
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132 | # define STACKLEVEL __builtin_frame_address (0) |
|
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133 | #else |
124 | #define dSTACKLEVEL volatile char stacklevel |
134 | # define dSTACKLEVEL volatile void *stacklevel |
125 | #define STACKLEVEL ((void *)&stacklevel) |
135 | # define STACKLEVEL ((void *)&stacklevel) |
|
|
136 | #endif |
126 | |
137 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
138 | #define IN_DESTRUCT PL_dirty |
128 | |
139 | |
129 | #if __GNUC__ >= 3 |
140 | #if __GNUC__ >= 3 |
130 | # define attribute(x) __attribute__(x) |
141 | # define attribute(x) __attribute__(x) |
131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
|
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132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
142 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
|
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143 | # define INLINE static inline |
133 | #else |
144 | #else |
134 | # define attribute(x) |
145 | # define attribute(x) |
135 | # define BARRIER |
|
|
136 | # define expect(expr,value) (expr) |
146 | # define expect(expr,value) (expr) |
|
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147 | # define INLINE static |
137 | #endif |
148 | #endif |
138 | |
149 | |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
150 | #define expect_false(expr) expect ((expr) != 0, 0) |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
152 | |
142 | #define NOINLINE attribute ((noinline)) |
153 | #define NOINLINE attribute ((noinline)) |
143 | |
154 | |
144 | #include "CoroAPI.h" |
155 | #include "CoroAPI.h" |
|
|
156 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
157 | |
146 | #ifdef USE_ITHREADS |
158 | #ifdef USE_ITHREADS |
147 | static perl_mutex coro_lock; |
159 | # if CORO_PTHREAD |
148 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
160 | 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 |
161 | # endif |
154 | |
162 | #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 | |
163 | |
165 | static double (*nvtime)(); /* so why doesn't it take void? */ |
164 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
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165 | |
|
|
166 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
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167 | #define CVf_SLF 0x4000 |
|
|
168 | static OP *pp_slf (pTHX); |
166 | |
169 | |
167 | static U32 cctx_gen; |
170 | static U32 cctx_gen; |
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
171 | static size_t cctx_stacksize = CORO_STACKSIZE; |
169 | static struct CoroAPI coroapi; |
172 | static struct CoroAPI coroapi; |
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
173 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
171 | static JMPENV *main_top_env; |
174 | static JMPENV *main_top_env; |
172 | static HV *coro_state_stash, *coro_stash; |
175 | static HV *coro_state_stash, *coro_stash; |
173 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
176 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
174 | |
177 | |
|
|
178 | static AV *av_destroy; /* destruction queue */ |
|
|
179 | static SV *sv_manager; /* the manager coro */ |
|
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180 | static SV *sv_idle; /* $Coro::idle */ |
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181 | |
175 | static GV *irsgv; /* $/ */ |
182 | static GV *irsgv; /* $/ */ |
176 | static GV *stdoutgv; /* *STDOUT */ |
183 | static GV *stdoutgv; /* *STDOUT */ |
177 | static SV *rv_diehook; |
184 | static SV *rv_diehook; |
178 | static SV *rv_warnhook; |
185 | static SV *rv_warnhook; |
179 | static HV *hv_sig; /* %SIG */ |
186 | static HV *hv_sig; /* %SIG */ |
180 | |
187 | |
181 | /* async_pool helper stuff */ |
188 | /* async_pool helper stuff */ |
182 | static SV *sv_pool_rss; |
189 | static SV *sv_pool_rss; |
183 | static SV *sv_pool_size; |
190 | static SV *sv_pool_size; |
|
|
191 | static SV *sv_async_pool_idle; /* description string */ |
184 | static AV *av_async_pool; |
192 | static AV *av_async_pool; /* idle pool */ |
|
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193 | static SV *sv_Coro; /* class string */ |
|
|
194 | static CV *cv_pool_handler; |
|
|
195 | static CV *cv_coro_state_new; |
185 | |
196 | |
186 | /* Coro::AnyEvent */ |
197 | /* Coro::AnyEvent */ |
187 | static SV *sv_activity; |
198 | static SV *sv_activity; |
188 | |
199 | |
189 | static struct coro_cctx *cctx_first; |
200 | static struct coro_cctx *cctx_first; |
… | |
… | |
197 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
208 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
198 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
209 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
199 | }; |
210 | }; |
200 | |
211 | |
201 | /* this is a structure representing a c-level coroutine */ |
212 | /* this is a structure representing a c-level coroutine */ |
202 | typedef struct coro_cctx { |
213 | typedef struct coro_cctx |
|
|
214 | { |
203 | struct coro_cctx *next; |
215 | struct coro_cctx *next; |
204 | |
216 | |
205 | /* the stack */ |
217 | /* the stack */ |
206 | void *sptr; |
218 | void *sptr; |
207 | size_t ssize; |
219 | size_t ssize; |
… | |
… | |
217 | int valgrind_id; |
229 | int valgrind_id; |
218 | #endif |
230 | #endif |
219 | unsigned char flags; |
231 | unsigned char flags; |
220 | } coro_cctx; |
232 | } coro_cctx; |
221 | |
233 | |
|
|
234 | coro_cctx *cctx_current; /* the currently running cctx */ |
|
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235 | |
|
|
236 | /*****************************************************************************/ |
|
|
237 | |
222 | enum { |
238 | enum { |
223 | CF_RUNNING = 0x0001, /* coroutine is running */ |
239 | CF_RUNNING = 0x0001, /* coroutine is running */ |
224 | CF_READY = 0x0002, /* coroutine is ready */ |
240 | CF_READY = 0x0002, /* coroutine is ready */ |
225 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_NEW = 0x0004, /* has never been switched to */ |
226 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
242 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
|
|
243 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
227 | }; |
244 | }; |
228 | |
245 | |
229 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
246 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
230 | typedef struct { |
247 | typedef struct |
|
|
248 | { |
231 | SV *defsv; |
249 | SV *defsv; |
232 | AV *defav; |
250 | AV *defav; |
233 | SV *errsv; |
251 | SV *errsv; |
234 | SV *irsgv; |
252 | SV *irsgv; |
|
|
253 | HV *hinthv; |
235 | #define VAR(name,type) type name; |
254 | #define VAR(name,type) type name; |
236 | # include "state.h" |
255 | # include "state.h" |
237 | #undef VAR |
256 | #undef VAR |
238 | } perl_slots; |
257 | } perl_slots; |
239 | |
258 | |
240 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
259 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
241 | |
260 | |
242 | /* this is a structure representing a perl-level coroutine */ |
261 | /* this is a structure representing a perl-level coroutine */ |
243 | struct coro { |
262 | struct coro { |
244 | /* the c coroutine allocated to this perl coroutine, if any */ |
263 | /* the C coroutine allocated to this perl coroutine, if any */ |
245 | coro_cctx *cctx; |
264 | coro_cctx *cctx; |
246 | |
265 | |
247 | /* process data */ |
266 | /* ready queue */ |
|
|
267 | struct coro *next_ready; |
|
|
268 | |
|
|
269 | /* state data */ |
|
|
270 | struct CoroSLF slf_frame; /* saved slf frame */ |
248 | AV *mainstack; |
271 | AV *mainstack; |
249 | perl_slots *slot; /* basically the saved sp */ |
272 | perl_slots *slot; /* basically the saved sp */ |
250 | |
273 | |
|
|
274 | CV *startcv; /* the CV to execute */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
275 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
276 | int refcnt; /* coroutines are refcounted, yes */ |
253 | int flags; /* CF_ flags */ |
277 | int flags; /* CF_ flags */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
278 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
279 | void (*on_destroy)(pTHX_ struct coro *coro); |
255 | |
280 | |
256 | /* statistics */ |
281 | /* statistics */ |
257 | int usecount; /* number of transfers to this coro */ |
282 | int usecount; /* number of transfers to this coro */ |
258 | |
283 | |
259 | /* coro process data */ |
284 | /* coro process data */ |
260 | int prio; |
285 | int prio; |
261 | SV *throw; /* exception to be thrown */ |
286 | SV *except; /* exception to be thrown */ |
|
|
287 | SV *rouse_cb; |
262 | |
288 | |
263 | /* async_pool */ |
289 | /* async_pool */ |
264 | SV *saved_deffh; |
290 | SV *saved_deffh; |
|
|
291 | SV *invoke_cb; |
|
|
292 | AV *invoke_av; |
|
|
293 | |
|
|
294 | /* on_enter/on_leave */ |
|
|
295 | AV *on_enter; |
|
|
296 | AV *on_leave; |
265 | |
297 | |
266 | /* linked list */ |
298 | /* linked list */ |
267 | struct coro *next, *prev; |
299 | struct coro *next, *prev; |
268 | }; |
300 | }; |
269 | |
301 | |
270 | typedef struct coro *Coro__State; |
302 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State_or_hashref; |
303 | typedef struct coro *Coro__State_or_hashref; |
|
|
304 | |
|
|
305 | /* the following variables are effectively part of the perl context */ |
|
|
306 | /* and get copied between struct coro and these variables */ |
|
|
307 | /* the mainr easonw e don't support windows process emulation */ |
|
|
308 | static struct CoroSLF slf_frame; /* the current slf frame */ |
272 | |
309 | |
273 | /** Coro ********************************************************************/ |
310 | /** Coro ********************************************************************/ |
274 | |
311 | |
275 | #define PRIO_MAX 3 |
312 | #define PRIO_MAX 3 |
276 | #define PRIO_HIGH 1 |
313 | #define PRIO_HIGH 1 |
… | |
… | |
280 | #define PRIO_MIN -4 |
317 | #define PRIO_MIN -4 |
281 | |
318 | |
282 | /* for Coro.pm */ |
319 | /* for Coro.pm */ |
283 | static SV *coro_current; |
320 | static SV *coro_current; |
284 | static SV *coro_readyhook; |
321 | static SV *coro_readyhook; |
285 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
322 | static struct coro *coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; /* head|tail */ |
286 | static int coro_nready; |
323 | static CV *cv_coro_run, *cv_coro_terminate; |
287 | static struct coro *coro_first; |
324 | static struct coro *coro_first; |
|
|
325 | #define coro_nready coroapi.nready |
288 | |
326 | |
289 | /** lowlevel stuff **********************************************************/ |
327 | /** lowlevel stuff **********************************************************/ |
290 | |
328 | |
291 | static SV * |
329 | static SV * |
292 | coro_get_sv (pTHX_ const char *name, int create) |
330 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
316 | get_hv (name, create); |
354 | get_hv (name, create); |
317 | #endif |
355 | #endif |
318 | return get_hv (name, create); |
356 | return get_hv (name, create); |
319 | } |
357 | } |
320 | |
358 | |
|
|
359 | /* may croak */ |
|
|
360 | INLINE CV * |
|
|
361 | coro_sv_2cv (pTHX_ SV *sv) |
|
|
362 | { |
|
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363 | HV *st; |
|
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364 | GV *gvp; |
|
|
365 | CV *cv = sv_2cv (sv, &st, &gvp, 0); |
|
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366 | |
|
|
367 | if (!cv) |
|
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368 | croak ("code reference expected"); |
|
|
369 | |
|
|
370 | return cv; |
|
|
371 | } |
|
|
372 | |
|
|
373 | /*****************************************************************************/ |
|
|
374 | /* magic glue */ |
|
|
375 | |
|
|
376 | #define CORO_MAGIC_type_cv 26 |
|
|
377 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
378 | |
|
|
379 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
380 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
381 | ? SvMAGIC (sv) \ |
|
|
382 | : mg_find (sv, type)) |
|
|
383 | |
|
|
384 | #define CORO_MAGIC(sv, type) \ |
|
|
385 | (expect_true (SvMAGIC (sv)) \ |
|
|
386 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
387 | : 0) |
|
|
388 | |
|
|
389 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
390 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
391 | |
|
|
392 | INLINE struct coro * |
|
|
393 | SvSTATE_ (pTHX_ SV *coro) |
|
|
394 | { |
|
|
395 | HV *stash; |
|
|
396 | MAGIC *mg; |
|
|
397 | |
|
|
398 | if (SvROK (coro)) |
|
|
399 | coro = SvRV (coro); |
|
|
400 | |
|
|
401 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
402 | croak ("Coro::State object required"); |
|
|
403 | |
|
|
404 | stash = SvSTASH (coro); |
|
|
405 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
406 | { |
|
|
407 | /* very slow, but rare, check */ |
|
|
408 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
409 | croak ("Coro::State object required"); |
|
|
410 | } |
|
|
411 | |
|
|
412 | mg = CORO_MAGIC_state (coro); |
|
|
413 | return (struct coro *)mg->mg_ptr; |
|
|
414 | } |
|
|
415 | |
|
|
416 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
417 | |
|
|
418 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
419 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
420 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
421 | |
|
|
422 | /*****************************************************************************/ |
|
|
423 | /* padlist management and caching */ |
|
|
424 | |
321 | static AV * |
425 | static AV * |
322 | coro_clone_padlist (pTHX_ CV *cv) |
426 | coro_derive_padlist (pTHX_ CV *cv) |
323 | { |
427 | { |
324 | AV *padlist = CvPADLIST (cv); |
428 | AV *padlist = CvPADLIST (cv); |
325 | AV *newpadlist, *newpad; |
429 | AV *newpadlist, *newpad; |
326 | |
430 | |
327 | newpadlist = newAV (); |
431 | newpadlist = newAV (); |
… | |
… | |
332 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
436 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
333 | #endif |
437 | #endif |
334 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
438 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
335 | --AvFILLp (padlist); |
439 | --AvFILLp (padlist); |
336 | |
440 | |
337 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
441 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
338 | av_store (newpadlist, 1, (SV *)newpad); |
442 | av_store (newpadlist, 1, (SV *)newpad); |
339 | |
443 | |
340 | return newpadlist; |
444 | return newpadlist; |
341 | } |
445 | } |
342 | |
446 | |
343 | static void |
447 | static void |
344 | free_padlist (pTHX_ AV *padlist) |
448 | free_padlist (pTHX_ AV *padlist) |
345 | { |
449 | { |
346 | /* may be during global destruction */ |
450 | /* may be during global destruction */ |
347 | if (SvREFCNT (padlist)) |
451 | if (!IN_DESTRUCT) |
348 | { |
452 | { |
349 | I32 i = AvFILLp (padlist); |
453 | I32 i = AvFILLp (padlist); |
350 | while (i >= 0) |
454 | |
|
|
455 | while (i > 0) /* special-case index 0 */ |
351 | { |
456 | { |
352 | SV **svp = av_fetch (padlist, i--, FALSE); |
457 | /* we try to be extra-careful here */ |
353 | if (svp) |
458 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
354 | { |
459 | I32 j = AvFILLp (av); |
355 | SV *sv; |
460 | |
356 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
461 | while (j >= 0) |
|
|
462 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
463 | |
|
|
464 | AvFILLp (av) = -1; |
357 | SvREFCNT_dec (sv); |
465 | SvREFCNT_dec (av); |
358 | |
|
|
359 | SvREFCNT_dec (*svp); |
|
|
360 | } |
|
|
361 | } |
466 | } |
362 | |
467 | |
|
|
468 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
469 | |
|
|
470 | AvFILLp (padlist) = -1; |
363 | SvREFCNT_dec ((SV*)padlist); |
471 | SvREFCNT_dec ((SV*)padlist); |
364 | } |
472 | } |
365 | } |
473 | } |
366 | |
474 | |
367 | static int |
475 | static int |
… | |
… | |
376 | |
484 | |
377 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
485 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
378 | |
486 | |
379 | return 0; |
487 | return 0; |
380 | } |
488 | } |
381 | |
|
|
382 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
383 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
384 | |
489 | |
385 | static MGVTBL coro_cv_vtbl = { |
490 | static MGVTBL coro_cv_vtbl = { |
386 | 0, 0, 0, 0, |
491 | 0, 0, 0, 0, |
387 | coro_cv_free |
492 | coro_cv_free |
388 | }; |
493 | }; |
389 | |
|
|
390 | #define CORO_MAGIC(sv, type) \ |
|
|
391 | SvMAGIC (sv) \ |
|
|
392 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
393 | ? SvMAGIC (sv) \ |
|
|
394 | : mg_find (sv, type) \ |
|
|
395 | : 0 |
|
|
396 | |
|
|
397 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
398 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
399 | |
|
|
400 | static struct coro * |
|
|
401 | SvSTATE_ (pTHX_ SV *coro) |
|
|
402 | { |
|
|
403 | HV *stash; |
|
|
404 | MAGIC *mg; |
|
|
405 | |
|
|
406 | if (SvROK (coro)) |
|
|
407 | coro = SvRV (coro); |
|
|
408 | |
|
|
409 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
410 | croak ("Coro::State object required"); |
|
|
411 | |
|
|
412 | stash = SvSTASH (coro); |
|
|
413 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
414 | { |
|
|
415 | /* very slow, but rare, check */ |
|
|
416 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
417 | croak ("Coro::State object required"); |
|
|
418 | } |
|
|
419 | |
|
|
420 | mg = CORO_MAGIC_state (coro); |
|
|
421 | return (struct coro *)mg->mg_ptr; |
|
|
422 | } |
|
|
423 | |
|
|
424 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
425 | |
494 | |
426 | /* the next two functions merely cache the padlists */ |
495 | /* the next two functions merely cache the padlists */ |
427 | static void |
496 | static void |
428 | get_padlist (pTHX_ CV *cv) |
497 | get_padlist (pTHX_ CV *cv) |
429 | { |
498 | { |
… | |
… | |
435 | else |
504 | else |
436 | { |
505 | { |
437 | #if CORO_PREFER_PERL_FUNCTIONS |
506 | #if CORO_PREFER_PERL_FUNCTIONS |
438 | /* this is probably cleaner? but also slower! */ |
507 | /* this is probably cleaner? but also slower! */ |
439 | /* in practise, it seems to be less stable */ |
508 | /* in practise, it seems to be less stable */ |
440 | CV *cp = Perl_cv_clone (cv); |
509 | CV *cp = Perl_cv_clone (aTHX_ cv); |
441 | CvPADLIST (cv) = CvPADLIST (cp); |
510 | CvPADLIST (cv) = CvPADLIST (cp); |
442 | CvPADLIST (cp) = 0; |
511 | CvPADLIST (cp) = 0; |
443 | SvREFCNT_dec (cp); |
512 | SvREFCNT_dec (cp); |
444 | #else |
513 | #else |
445 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
514 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
446 | #endif |
515 | #endif |
447 | } |
516 | } |
448 | } |
517 | } |
449 | |
518 | |
450 | static void |
519 | static void |
… | |
… | |
457 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
526 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
458 | |
527 | |
459 | av = (AV *)mg->mg_obj; |
528 | av = (AV *)mg->mg_obj; |
460 | |
529 | |
461 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
530 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
462 | av_extend (av, AvMAX (av) + 1); |
531 | av_extend (av, AvFILLp (av) + 1); |
463 | |
532 | |
464 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
533 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
465 | } |
534 | } |
466 | |
535 | |
467 | /** load & save, init *******************************************************/ |
536 | /** load & save, init *******************************************************/ |
|
|
537 | |
|
|
538 | static void |
|
|
539 | on_enterleave_call (pTHX_ SV *cb); |
468 | |
540 | |
469 | static void |
541 | static void |
470 | load_perl (pTHX_ Coro__State c) |
542 | load_perl (pTHX_ Coro__State c) |
471 | { |
543 | { |
472 | perl_slots *slot = c->slot; |
544 | perl_slots *slot = c->slot; |
473 | c->slot = 0; |
545 | c->slot = 0; |
474 | |
546 | |
475 | PL_mainstack = c->mainstack; |
547 | PL_mainstack = c->mainstack; |
476 | |
548 | |
477 | GvSV (PL_defgv) = slot->defsv; |
549 | GvSV (PL_defgv) = slot->defsv; |
478 | GvAV (PL_defgv) = slot->defav; |
550 | GvAV (PL_defgv) = slot->defav; |
479 | GvSV (PL_errgv) = slot->errsv; |
551 | GvSV (PL_errgv) = slot->errsv; |
480 | GvSV (irsgv) = slot->irsgv; |
552 | GvSV (irsgv) = slot->irsgv; |
|
|
553 | GvHV (PL_hintgv) = slot->hinthv; |
481 | |
554 | |
482 | #define VAR(name,type) PL_ ## name = slot->name; |
555 | #define VAR(name,type) PL_ ## name = slot->name; |
483 | # include "state.h" |
556 | # include "state.h" |
484 | #undef VAR |
557 | #undef VAR |
485 | |
558 | |
… | |
… | |
496 | CvPADLIST (cv) = (AV *)POPs; |
569 | CvPADLIST (cv) = (AV *)POPs; |
497 | } |
570 | } |
498 | |
571 | |
499 | PUTBACK; |
572 | PUTBACK; |
500 | } |
573 | } |
|
|
574 | |
|
|
575 | slf_frame = c->slf_frame; |
|
|
576 | CORO_THROW = c->except; |
|
|
577 | |
|
|
578 | if (expect_false (c->on_enter)) |
|
|
579 | { |
|
|
580 | int i; |
|
|
581 | |
|
|
582 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
583 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
584 | } |
501 | } |
585 | } |
502 | |
586 | |
503 | static void |
587 | static void |
504 | save_perl (pTHX_ Coro__State c) |
588 | save_perl (pTHX_ Coro__State c) |
505 | { |
589 | { |
|
|
590 | if (expect_false (c->on_leave)) |
|
|
591 | { |
|
|
592 | int i; |
|
|
593 | |
|
|
594 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
595 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
596 | } |
|
|
597 | |
|
|
598 | c->except = CORO_THROW; |
|
|
599 | c->slf_frame = slf_frame; |
|
|
600 | |
506 | { |
601 | { |
507 | dSP; |
602 | dSP; |
508 | I32 cxix = cxstack_ix; |
603 | I32 cxix = cxstack_ix; |
509 | PERL_CONTEXT *ccstk = cxstack; |
604 | PERL_CONTEXT *ccstk = cxstack; |
510 | PERL_SI *top_si = PL_curstackinfo; |
605 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
520 | { |
615 | { |
521 | while (expect_true (cxix >= 0)) |
616 | while (expect_true (cxix >= 0)) |
522 | { |
617 | { |
523 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
618 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
524 | |
619 | |
525 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
620 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
526 | { |
621 | { |
527 | CV *cv = cx->blk_sub.cv; |
622 | CV *cv = cx->blk_sub.cv; |
528 | |
623 | |
529 | if (expect_true (CvDEPTH (cv))) |
624 | if (expect_true (CvDEPTH (cv))) |
530 | { |
625 | { |
… | |
… | |
565 | c->mainstack = PL_mainstack; |
660 | c->mainstack = PL_mainstack; |
566 | |
661 | |
567 | { |
662 | { |
568 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
663 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
569 | |
664 | |
570 | slot->defav = GvAV (PL_defgv); |
665 | slot->defav = GvAV (PL_defgv); |
571 | slot->defsv = DEFSV; |
666 | slot->defsv = DEFSV; |
572 | slot->errsv = ERRSV; |
667 | slot->errsv = ERRSV; |
573 | slot->irsgv = GvSV (irsgv); |
668 | slot->irsgv = GvSV (irsgv); |
|
|
669 | slot->hinthv = GvHV (PL_hintgv); |
574 | |
670 | |
575 | #define VAR(name,type) slot->name = PL_ ## name; |
671 | #define VAR(name,type) slot->name = PL_ ## name; |
576 | # include "state.h" |
672 | # include "state.h" |
577 | #undef VAR |
673 | #undef VAR |
578 | } |
674 | } |
579 | } |
675 | } |
580 | |
676 | |
581 | /* |
677 | /* |
582 | * allocate various perl stacks. This is an exact copy |
678 | * allocate various perl stacks. This is almost an exact copy |
583 | * of perl.c:init_stacks, except that it uses less memory |
679 | * of perl.c:init_stacks, except that it uses less memory |
584 | * on the (sometimes correct) assumption that coroutines do |
680 | * on the (sometimes correct) assumption that coroutines do |
585 | * not usually need a lot of stackspace. |
681 | * not usually need a lot of stackspace. |
586 | */ |
682 | */ |
587 | #if CORO_PREFER_PERL_FUNCTIONS |
683 | #if CORO_PREFER_PERL_FUNCTIONS |
588 | # define coro_init_stacks init_stacks |
684 | # define coro_init_stacks(thx) init_stacks () |
589 | #else |
685 | #else |
590 | static void |
686 | static void |
591 | coro_init_stacks (pTHX) |
687 | coro_init_stacks (pTHX) |
592 | { |
688 | { |
593 | PL_curstackinfo = new_stackinfo(32, 8); |
689 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
656 | #if !PERL_VERSION_ATLEAST (5,10,0) |
752 | #if !PERL_VERSION_ATLEAST (5,10,0) |
657 | Safefree (PL_retstack); |
753 | Safefree (PL_retstack); |
658 | #endif |
754 | #endif |
659 | } |
755 | } |
660 | |
756 | |
|
|
757 | #define CORO_RSS \ |
|
|
758 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
759 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
760 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
761 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
762 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
763 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
764 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
765 | |
661 | static size_t |
766 | static size_t |
662 | coro_rss (pTHX_ struct coro *coro) |
767 | coro_rss (pTHX_ struct coro *coro) |
663 | { |
768 | { |
664 | size_t rss = sizeof (*coro); |
769 | size_t rss = sizeof (*coro); |
665 | |
770 | |
666 | if (coro->mainstack) |
771 | if (coro->mainstack) |
667 | { |
772 | { |
668 | perl_slots tmp_slot; |
|
|
669 | perl_slots *slot; |
|
|
670 | |
|
|
671 | if (coro->flags & CF_RUNNING) |
773 | if (coro->flags & CF_RUNNING) |
672 | { |
774 | { |
673 | slot = &tmp_slot; |
775 | #define SYM(sym) PL_ ## sym |
674 | |
776 | CORO_RSS; |
675 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
676 | # include "state.h" |
|
|
677 | #undef VAR |
777 | #undef SYM |
678 | } |
778 | } |
679 | else |
779 | else |
680 | slot = coro->slot; |
|
|
681 | |
|
|
682 | if (slot) |
|
|
683 | { |
780 | { |
684 | rss += sizeof (slot->curstackinfo); |
781 | #define SYM(sym) coro->slot->sym |
685 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
782 | CORO_RSS; |
686 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
783 | #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 | } |
784 | } |
696 | } |
785 | } |
697 | |
786 | |
698 | return rss; |
787 | return rss; |
699 | } |
788 | } |
… | |
… | |
712 | #endif |
801 | #endif |
713 | |
802 | |
714 | /* |
803 | /* |
715 | * This overrides the default magic get method of %SIG elements. |
804 | * This overrides the default magic get method of %SIG elements. |
716 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
805 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
717 | * and instead of tryign to save and restore the hash elements, we just provide |
806 | * and instead of trying to save and restore the hash elements, we just provide |
718 | * readback here. |
807 | * readback here. |
719 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
720 | * not expecting this to actually change the hook. This is a potential problem |
|
|
721 | * when a schedule happens then, but we ignore this. |
|
|
722 | */ |
808 | */ |
723 | static int |
809 | static int |
724 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
810 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
725 | { |
811 | { |
726 | const char *s = MgPV_nolen_const (mg); |
812 | const char *s = MgPV_nolen_const (mg); |
… | |
… | |
779 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
865 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
780 | |
866 | |
781 | if (svp) |
867 | if (svp) |
782 | { |
868 | { |
783 | SV *old = *svp; |
869 | SV *old = *svp; |
784 | *svp = newSVsv (sv); |
870 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
785 | SvREFCNT_dec (old); |
871 | SvREFCNT_dec (old); |
786 | return 0; |
872 | return 0; |
787 | } |
873 | } |
788 | } |
874 | } |
789 | |
875 | |
790 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
876 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
791 | } |
877 | } |
792 | |
878 | |
793 | static void |
879 | static void |
|
|
880 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
881 | { |
|
|
882 | /* kind of mega-hacky, but works */ |
|
|
883 | ta->next = ta->prev = (struct coro *)ta; |
|
|
884 | } |
|
|
885 | |
|
|
886 | static int |
|
|
887 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
888 | { |
|
|
889 | return 0; |
|
|
890 | } |
|
|
891 | |
|
|
892 | static int |
|
|
893 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
894 | { |
|
|
895 | return 1; |
|
|
896 | } |
|
|
897 | |
|
|
898 | static UNOP coro_setup_op; |
|
|
899 | |
|
|
900 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
794 | coro_setup (pTHX_ struct coro *coro) |
901 | coro_setup (pTHX_ struct coro *coro) |
795 | { |
902 | { |
796 | /* |
903 | /* |
797 | * emulate part of the perl startup here. |
904 | * emulate part of the perl startup here. |
798 | */ |
905 | */ |
… | |
… | |
800 | |
907 | |
801 | PL_runops = RUNOPS_DEFAULT; |
908 | PL_runops = RUNOPS_DEFAULT; |
802 | PL_curcop = &PL_compiling; |
909 | PL_curcop = &PL_compiling; |
803 | PL_in_eval = EVAL_NULL; |
910 | PL_in_eval = EVAL_NULL; |
804 | PL_comppad = 0; |
911 | PL_comppad = 0; |
|
|
912 | PL_comppad_name = 0; |
|
|
913 | PL_comppad_name_fill = 0; |
|
|
914 | PL_comppad_name_floor = 0; |
805 | PL_curpm = 0; |
915 | PL_curpm = 0; |
806 | PL_curpad = 0; |
916 | PL_curpad = 0; |
807 | PL_localizing = 0; |
917 | PL_localizing = 0; |
808 | PL_dirty = 0; |
918 | PL_dirty = 0; |
809 | PL_restartop = 0; |
919 | PL_restartop = 0; |
810 | #if PERL_VERSION_ATLEAST (5,10,0) |
920 | #if PERL_VERSION_ATLEAST (5,10,0) |
811 | PL_parser = 0; |
921 | PL_parser = 0; |
812 | #endif |
922 | #endif |
|
|
923 | PL_hints = 0; |
813 | |
924 | |
814 | /* recreate the die/warn hooks */ |
925 | /* recreate the die/warn hooks */ |
815 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
926 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
816 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
927 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
817 | |
928 | |
818 | GvSV (PL_defgv) = newSV (0); |
929 | GvSV (PL_defgv) = newSV (0); |
819 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
930 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
820 | GvSV (PL_errgv) = newSV (0); |
931 | GvSV (PL_errgv) = newSV (0); |
821 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
932 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
933 | GvHV (PL_hintgv) = 0; |
822 | PL_rs = newSVsv (GvSV (irsgv)); |
934 | PL_rs = newSVsv (GvSV (irsgv)); |
823 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
935 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
824 | |
936 | |
825 | { |
937 | { |
826 | dSP; |
938 | dSP; |
827 | LOGOP myop; |
939 | UNOP myop; |
828 | |
940 | |
829 | Zero (&myop, 1, LOGOP); |
941 | Zero (&myop, 1, UNOP); |
830 | myop.op_next = Nullop; |
942 | myop.op_next = Nullop; |
|
|
943 | myop.op_type = OP_ENTERSUB; |
831 | myop.op_flags = OPf_WANT_VOID; |
944 | myop.op_flags = OPf_WANT_VOID; |
832 | |
945 | |
833 | PUSHMARK (SP); |
946 | PUSHMARK (SP); |
834 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
947 | PUSHs ((SV *)coro->startcv); |
835 | PUTBACK; |
948 | PUTBACK; |
836 | PL_op = (OP *)&myop; |
949 | PL_op = (OP *)&myop; |
837 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
950 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
838 | SPAGAIN; |
|
|
839 | } |
951 | } |
840 | |
952 | |
841 | /* this newly created coroutine might be run on an existing cctx which most |
953 | /* this newly created coroutine might be run on an existing cctx which most |
842 | * likely was suspended in set_stacklevel, called from entersub. |
954 | * 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 | */ |
955 | */ |
846 | ENTER; |
956 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
847 | } |
957 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
848 | |
958 | |
|
|
959 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
960 | coro_setup_op.op_next = PL_op; |
|
|
961 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
962 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
963 | /* no flags etc. required, as an init function won't be called */ |
|
|
964 | |
|
|
965 | PL_op = (OP *)&coro_setup_op; |
|
|
966 | |
|
|
967 | /* copy throw, in case it was set before coro_setup */ |
|
|
968 | CORO_THROW = coro->except; |
|
|
969 | } |
|
|
970 | |
849 | static void |
971 | static void |
850 | coro_destruct (pTHX_ struct coro *coro) |
972 | coro_unwind_stacks (pTHX) |
851 | { |
973 | { |
852 | if (!IN_DESTRUCT) |
974 | if (!IN_DESTRUCT) |
853 | { |
975 | { |
854 | /* restore all saved variables and stuff */ |
976 | /* restore all saved variables and stuff */ |
855 | LEAVE_SCOPE (0); |
977 | LEAVE_SCOPE (0); |
… | |
… | |
863 | POPSTACK_TO (PL_mainstack); |
985 | POPSTACK_TO (PL_mainstack); |
864 | |
986 | |
865 | /* unwind main stack */ |
987 | /* unwind main stack */ |
866 | dounwind (-1); |
988 | dounwind (-1); |
867 | } |
989 | } |
|
|
990 | } |
868 | |
991 | |
869 | SvREFCNT_dec (GvSV (PL_defgv)); |
992 | static void |
870 | SvREFCNT_dec (GvAV (PL_defgv)); |
993 | coro_destruct_perl (pTHX_ struct coro *coro) |
871 | SvREFCNT_dec (GvSV (PL_errgv)); |
994 | { |
872 | SvREFCNT_dec (PL_defoutgv); |
995 | SV *svf [9]; |
873 | SvREFCNT_dec (PL_rs); |
|
|
874 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
875 | |
996 | |
876 | SvREFCNT_dec (PL_diehook); |
|
|
877 | SvREFCNT_dec (PL_warnhook); |
|
|
878 | |
997 | { |
|
|
998 | struct coro *current = SvSTATE_current; |
|
|
999 | |
|
|
1000 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1001 | |
|
|
1002 | save_perl (aTHX_ current); |
|
|
1003 | load_perl (aTHX_ coro); |
|
|
1004 | |
|
|
1005 | coro_unwind_stacks (aTHX); |
|
|
1006 | coro_destruct_stacks (aTHX); |
|
|
1007 | |
|
|
1008 | // now save some sv's to be free'd later |
|
|
1009 | svf [0] = GvSV (PL_defgv); |
|
|
1010 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1011 | svf [2] = GvSV (PL_errgv); |
|
|
1012 | svf [3] = (SV *)PL_defoutgv; |
|
|
1013 | svf [4] = PL_rs; |
|
|
1014 | svf [5] = GvSV (irsgv); |
|
|
1015 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1016 | svf [7] = PL_diehook; |
|
|
1017 | svf [8] = PL_warnhook; |
|
|
1018 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1019 | |
|
|
1020 | load_perl (aTHX_ current); |
|
|
1021 | } |
|
|
1022 | |
|
|
1023 | { |
|
|
1024 | int i; |
|
|
1025 | |
|
|
1026 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1027 | SvREFCNT_dec (svf [i]); |
|
|
1028 | |
879 | SvREFCNT_dec (coro->saved_deffh); |
1029 | SvREFCNT_dec (coro->saved_deffh); |
880 | SvREFCNT_dec (coro->throw); |
1030 | SvREFCNT_dec (coro->rouse_cb); |
881 | |
1031 | SvREFCNT_dec (coro->invoke_cb); |
882 | coro_destruct_stacks (aTHX); |
1032 | SvREFCNT_dec (coro->invoke_av); |
|
|
1033 | } |
883 | } |
1034 | } |
884 | |
1035 | |
885 | static void |
1036 | INLINE void |
886 | free_coro_mortal (pTHX) |
1037 | free_coro_mortal (pTHX) |
887 | { |
1038 | { |
888 | if (expect_true (coro_mortal)) |
1039 | if (expect_true (coro_mortal)) |
889 | { |
1040 | { |
890 | SvREFCNT_dec (coro_mortal); |
1041 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
895 | static int |
1046 | static int |
896 | runops_trace (pTHX) |
1047 | runops_trace (pTHX) |
897 | { |
1048 | { |
898 | COP *oldcop = 0; |
1049 | COP *oldcop = 0; |
899 | int oldcxix = -2; |
1050 | int oldcxix = -2; |
900 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
901 | coro_cctx *cctx = coro->cctx; |
|
|
902 | |
1051 | |
903 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1052 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
904 | { |
1053 | { |
905 | PERL_ASYNC_CHECK (); |
1054 | PERL_ASYNC_CHECK (); |
906 | |
1055 | |
907 | if (cctx->flags & CC_TRACE_ALL) |
1056 | if (cctx_current->flags & CC_TRACE_ALL) |
908 | { |
1057 | { |
909 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1058 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
910 | { |
1059 | { |
911 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1060 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
912 | SV **bot, **top; |
1061 | SV **bot, **top; |
913 | AV *av = newAV (); /* return values */ |
1062 | AV *av = newAV (); /* return values */ |
914 | SV **cb; |
1063 | SV **cb; |
… | |
… | |
951 | |
1100 | |
952 | if (PL_curcop != &PL_compiling) |
1101 | if (PL_curcop != &PL_compiling) |
953 | { |
1102 | { |
954 | SV **cb; |
1103 | SV **cb; |
955 | |
1104 | |
956 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1105 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
957 | { |
1106 | { |
958 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1107 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
959 | |
1108 | |
960 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1109 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
961 | { |
1110 | { |
962 | runops_proc_t old_runops = PL_runops; |
|
|
963 | dSP; |
1111 | dSP; |
964 | GV *gv = CvGV (cx->blk_sub.cv); |
1112 | GV *gv = CvGV (cx->blk_sub.cv); |
965 | SV *fullname = sv_2mortal (newSV (0)); |
1113 | SV *fullname = sv_2mortal (newSV (0)); |
966 | |
1114 | |
967 | if (isGV (gv)) |
1115 | if (isGV (gv)) |
… | |
… | |
972 | SAVETMPS; |
1120 | SAVETMPS; |
973 | EXTEND (SP, 3); |
1121 | EXTEND (SP, 3); |
974 | PUSHMARK (SP); |
1122 | PUSHMARK (SP); |
975 | PUSHs (&PL_sv_yes); |
1123 | PUSHs (&PL_sv_yes); |
976 | PUSHs (fullname); |
1124 | PUSHs (fullname); |
977 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1125 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
978 | PUTBACK; |
1126 | PUTBACK; |
979 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1127 | 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); |
1128 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
981 | SPAGAIN; |
1129 | SPAGAIN; |
982 | FREETMPS; |
1130 | FREETMPS; |
… | |
… | |
985 | } |
1133 | } |
986 | |
1134 | |
987 | oldcxix = cxstack_ix; |
1135 | oldcxix = cxstack_ix; |
988 | } |
1136 | } |
989 | |
1137 | |
990 | if (cctx->flags & CC_TRACE_LINE) |
1138 | if (cctx_current->flags & CC_TRACE_LINE) |
991 | { |
1139 | { |
992 | dSP; |
1140 | dSP; |
993 | |
1141 | |
994 | PL_runops = RUNOPS_DEFAULT; |
1142 | PL_runops = RUNOPS_DEFAULT; |
995 | ENTER; |
1143 | ENTER; |
… | |
… | |
1014 | |
1162 | |
1015 | TAINT_NOT; |
1163 | TAINT_NOT; |
1016 | return 0; |
1164 | return 0; |
1017 | } |
1165 | } |
1018 | |
1166 | |
1019 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1167 | static struct CoroSLF cctx_ssl_frame; |
1020 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1168 | |
1021 | /* during execution of a perl program */ |
1169 | static void |
|
|
1170 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1171 | { |
|
|
1172 | ta->prev = 0; |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | static int |
|
|
1176 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1177 | { |
|
|
1178 | *frame = cctx_ssl_frame; |
|
|
1179 | |
|
|
1180 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1022 | static void NOINLINE |
1184 | static void NOINLINE |
1023 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1185 | cctx_prepare (pTHX) |
1024 | { |
1186 | { |
1025 | dSP; |
|
|
1026 | LOGOP myop; |
|
|
1027 | |
|
|
1028 | PL_top_env = &PL_start_env; |
1187 | PL_top_env = &PL_start_env; |
1029 | |
1188 | |
1030 | if (cctx->flags & CC_TRACE) |
1189 | if (cctx_current->flags & CC_TRACE) |
1031 | PL_runops = runops_trace; |
1190 | PL_runops = runops_trace; |
1032 | |
1191 | |
1033 | Zero (&myop, 1, LOGOP); |
1192 | /* we already must be executing an SLF op, there is no other valid way |
1034 | myop.op_next = PL_op; |
1193 | * that can lead to creation of a new cctx */ |
1035 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1194 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1195 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1036 | |
1196 | |
1037 | PUSHMARK (SP); |
1197 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1038 | EXTEND (SP, 2); |
1198 | cctx_ssl_frame = slf_frame; |
1039 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1199 | |
1040 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1200 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1041 | PUTBACK; |
1201 | slf_frame.check = slf_check_set_stacklevel; |
1042 | PL_op = (OP *)&myop; |
1202 | } |
1043 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1203 | |
1044 | SPAGAIN; |
1204 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1205 | INLINE void |
|
|
1206 | transfer_tail (pTHX) |
|
|
1207 | { |
|
|
1208 | free_coro_mortal (aTHX); |
1045 | } |
1209 | } |
1046 | |
1210 | |
1047 | /* |
1211 | /* |
1048 | * this is a _very_ stripped down perl interpreter ;) |
1212 | * this is a _very_ stripped down perl interpreter ;) |
1049 | */ |
1213 | */ |
1050 | static void |
1214 | static void |
1051 | cctx_run (void *arg) |
1215 | cctx_run (void *arg) |
1052 | { |
1216 | { |
|
|
1217 | #ifdef USE_ITHREADS |
|
|
1218 | # if CORO_PTHREAD |
|
|
1219 | PERL_SET_CONTEXT (coro_thx); |
|
|
1220 | # endif |
|
|
1221 | #endif |
|
|
1222 | { |
1053 | dTHX; |
1223 | dTHX; |
1054 | |
1224 | |
1055 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1225 | /* normally we would need to skip the entersub here */ |
1056 | UNLOCK; |
1226 | /* 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; |
1227 | /* PL_nop = PL_nop->op_next */ |
1060 | |
1228 | |
1061 | /* inject a fake subroutine call to cctx_init */ |
1229 | /* inject a fake subroutine call to cctx_init */ |
1062 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1230 | cctx_prepare (aTHX); |
1063 | |
1231 | |
|
|
1232 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1233 | transfer_tail (aTHX); |
|
|
1234 | |
1064 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1235 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1065 | PL_restartop = PL_op; |
1236 | PL_restartop = PL_op; |
1066 | perl_run (PL_curinterp); |
1237 | perl_run (PL_curinterp); |
1067 | |
|
|
1068 | /* |
1238 | /* |
|
|
1239 | * Unfortunately, there is no way to get at the return values of the |
|
|
1240 | * coro body here, as perl_run destroys these |
|
|
1241 | */ |
|
|
1242 | |
|
|
1243 | /* |
1069 | * If perl-run returns we assume exit() was being called or the coro |
1244 | * 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) |
1245 | * 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 |
1246 | * 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" |
1247 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1073 | * coroutine as Coro has no such concept |
1248 | * coroutine as Coro has no such concept. |
|
|
1249 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1250 | * that backend are too broken to do it in a standards-compliant way. |
1074 | */ |
1251 | */ |
1075 | PL_top_env = main_top_env; |
1252 | PL_top_env = main_top_env; |
1076 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1253 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1254 | } |
1077 | } |
1255 | } |
1078 | |
1256 | |
1079 | static coro_cctx * |
1257 | static coro_cctx * |
1080 | cctx_new () |
1258 | cctx_new () |
1081 | { |
1259 | { |
1082 | coro_cctx *cctx; |
1260 | coro_cctx *cctx; |
|
|
1261 | |
|
|
1262 | ++cctx_count; |
|
|
1263 | New (0, cctx, 1, coro_cctx); |
|
|
1264 | |
|
|
1265 | cctx->gen = cctx_gen; |
|
|
1266 | cctx->flags = 0; |
|
|
1267 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1268 | |
|
|
1269 | return cctx; |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | /* create a new cctx only suitable as source */ |
|
|
1273 | static coro_cctx * |
|
|
1274 | cctx_new_empty () |
|
|
1275 | { |
|
|
1276 | coro_cctx *cctx = cctx_new (); |
|
|
1277 | |
|
|
1278 | cctx->sptr = 0; |
|
|
1279 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1280 | |
|
|
1281 | return cctx; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1285 | static coro_cctx * |
|
|
1286 | cctx_new_run () |
|
|
1287 | { |
|
|
1288 | coro_cctx *cctx = cctx_new (); |
1083 | void *stack_start; |
1289 | void *stack_start; |
1084 | size_t stack_size; |
1290 | size_t stack_size; |
1085 | |
|
|
1086 | ++cctx_count; |
|
|
1087 | Newz (0, cctx, 1, coro_cctx); |
|
|
1088 | |
|
|
1089 | cctx->gen = cctx_gen; |
|
|
1090 | |
1291 | |
1091 | #if HAVE_MMAP |
1292 | #if HAVE_MMAP |
1092 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1293 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1093 | /* mmap supposedly does allocate-on-write for us */ |
1294 | /* 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); |
1295 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1095 | |
1296 | |
1096 | if (cctx->sptr != (void *)-1) |
1297 | if (cctx->sptr != (void *)-1) |
1097 | { |
1298 | { |
1098 | # if CORO_STACKGUARD |
1299 | #if CORO_STACKGUARD |
1099 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1300 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1100 | # endif |
1301 | #endif |
1101 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1302 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1102 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1303 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1103 | cctx->flags |= CC_MAPPED; |
1304 | cctx->flags |= CC_MAPPED; |
1104 | } |
1305 | } |
1105 | else |
1306 | else |
1106 | #endif |
1307 | #endif |
1107 | { |
1308 | { |
1108 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1309 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1109 | New (0, cctx->sptr, cctx_stacksize, long); |
1310 | New (0, cctx->sptr, cctx_stacksize, long); |
1110 | |
1311 | |
1111 | if (!cctx->sptr) |
1312 | if (!cctx->sptr) |
1112 | { |
1313 | { |
1113 | perror ("FATAL: unable to allocate stack for coroutine"); |
1314 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1114 | _exit (EXIT_FAILURE); |
1315 | _exit (EXIT_FAILURE); |
1115 | } |
1316 | } |
1116 | |
1317 | |
1117 | stack_start = cctx->sptr; |
1318 | stack_start = cctx->sptr; |
1118 | stack_size = cctx->ssize; |
1319 | stack_size = cctx->ssize; |
1119 | } |
1320 | } |
1120 | |
1321 | |
1121 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1322 | #if CORO_USE_VALGRIND |
|
|
1323 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1324 | #endif |
|
|
1325 | |
1122 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1326 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1123 | |
1327 | |
1124 | return cctx; |
1328 | return cctx; |
1125 | } |
1329 | } |
1126 | |
1330 | |
… | |
… | |
1128 | cctx_destroy (coro_cctx *cctx) |
1332 | cctx_destroy (coro_cctx *cctx) |
1129 | { |
1333 | { |
1130 | if (!cctx) |
1334 | if (!cctx) |
1131 | return; |
1335 | return; |
1132 | |
1336 | |
|
|
1337 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
|
|
1338 | |
1133 | --cctx_count; |
1339 | --cctx_count; |
1134 | coro_destroy (&cctx->cctx); |
1340 | coro_destroy (&cctx->cctx); |
1135 | |
1341 | |
1136 | /* coro_transfer creates new, empty cctx's */ |
1342 | /* coro_transfer creates new, empty cctx's */ |
1137 | if (cctx->sptr) |
1343 | if (cctx->sptr) |
1138 | { |
1344 | { |
1139 | #if CORO_USE_VALGRIND |
1345 | #if CORO_USE_VALGRIND |
1140 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1346 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1141 | #endif |
1347 | #endif |
1142 | |
1348 | |
1143 | #if HAVE_MMAP |
1349 | #if HAVE_MMAP |
1144 | if (cctx->flags & CC_MAPPED) |
1350 | if (cctx->flags & CC_MAPPED) |
1145 | munmap (cctx->sptr, cctx->ssize); |
1351 | munmap (cctx->sptr, cctx->ssize); |
1146 | else |
1352 | else |
… | |
… | |
1167 | return cctx; |
1373 | return cctx; |
1168 | |
1374 | |
1169 | cctx_destroy (cctx); |
1375 | cctx_destroy (cctx); |
1170 | } |
1376 | } |
1171 | |
1377 | |
1172 | return cctx_new (); |
1378 | return cctx_new_run (); |
1173 | } |
1379 | } |
1174 | |
1380 | |
1175 | static void |
1381 | static void |
1176 | cctx_put (coro_cctx *cctx) |
1382 | cctx_put (coro_cctx *cctx) |
1177 | { |
1383 | { |
1178 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
1384 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1179 | |
1385 | |
1180 | /* free another cctx if overlimit */ |
1386 | /* free another cctx if overlimit */ |
1181 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1387 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1182 | { |
1388 | { |
1183 | coro_cctx *first = cctx_first; |
1389 | coro_cctx *first = cctx_first; |
… | |
… | |
1195 | /** coroutine switching *****************************************************/ |
1401 | /** coroutine switching *****************************************************/ |
1196 | |
1402 | |
1197 | static void |
1403 | static void |
1198 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1404 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1199 | { |
1405 | { |
|
|
1406 | /* TODO: throwing up here is considered harmful */ |
|
|
1407 | |
1200 | if (expect_true (prev != next)) |
1408 | if (expect_true (prev != next)) |
1201 | { |
1409 | { |
1202 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1410 | 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"); |
1411 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1204 | |
1412 | |
1205 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1206 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1207 | |
|
|
1208 | if (expect_false (next->flags & CF_DESTROYED)) |
1413 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1209 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1414 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1210 | |
1415 | |
1211 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1416 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1212 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1417 | 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"); |
1418 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1214 | #endif |
1419 | #endif |
1215 | } |
1420 | } |
1216 | } |
1421 | } |
1217 | |
1422 | |
1218 | /* always use the TRANSFER macro */ |
1423 | /* always use the TRANSFER macro */ |
1219 | static void NOINLINE |
1424 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1220 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1425 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1221 | { |
1426 | { |
1222 | dSTACKLEVEL; |
1427 | dSTACKLEVEL; |
1223 | |
1428 | |
1224 | /* sometimes transfer is only called to set idle_sp */ |
1429 | /* sometimes transfer is only called to set idle_sp */ |
1225 | if (expect_false (!next)) |
1430 | if (expect_false (!prev)) |
1226 | { |
1431 | { |
1227 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1432 | cctx_current->idle_sp = STACKLEVEL; |
1228 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1433 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1229 | } |
1434 | } |
1230 | else if (expect_true (prev != next)) |
1435 | else if (expect_true (prev != next)) |
1231 | { |
1436 | { |
1232 | static volatile int has_throw; |
|
|
1233 | coro_cctx *prev__cctx; |
1437 | coro_cctx *cctx_prev; |
1234 | |
1438 | |
1235 | if (expect_false (prev->flags & CF_NEW)) |
1439 | if (expect_false (prev->flags & CF_NEW)) |
1236 | { |
1440 | { |
1237 | /* create a new empty/source context */ |
1441 | /* create a new empty/source context */ |
1238 | ++cctx_count; |
|
|
1239 | New (0, prev->cctx, 1, coro_cctx); |
|
|
1240 | prev->cctx->sptr = 0; |
|
|
1241 | coro_create (&prev->cctx->cctx, 0, 0, 0, 0); |
|
|
1242 | |
|
|
1243 | prev->flags &= ~CF_NEW; |
1442 | prev->flags &= ~CF_NEW; |
1244 | prev->flags |= CF_RUNNING; |
1443 | prev->flags |= CF_RUNNING; |
1245 | } |
1444 | } |
1246 | |
1445 | |
1247 | prev->flags &= ~CF_RUNNING; |
1446 | prev->flags &= ~CF_RUNNING; |
1248 | next->flags |= CF_RUNNING; |
1447 | next->flags |= CF_RUNNING; |
1249 | |
|
|
1250 | LOCK; |
|
|
1251 | |
1448 | |
1252 | /* first get rid of the old state */ |
1449 | /* first get rid of the old state */ |
1253 | save_perl (aTHX_ prev); |
1450 | save_perl (aTHX_ prev); |
1254 | |
1451 | |
1255 | if (expect_false (next->flags & CF_NEW)) |
1452 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1260 | coro_setup (aTHX_ next); |
1457 | coro_setup (aTHX_ next); |
1261 | } |
1458 | } |
1262 | else |
1459 | else |
1263 | load_perl (aTHX_ next); |
1460 | load_perl (aTHX_ next); |
1264 | |
1461 | |
1265 | prev__cctx = prev->cctx; |
|
|
1266 | |
|
|
1267 | /* possibly "free" the cctx */ |
1462 | /* possibly untie and reuse the cctx */ |
1268 | if (expect_true ( |
1463 | if (expect_true ( |
1269 | prev__cctx->idle_sp == STACKLEVEL |
1464 | cctx_current->idle_sp == STACKLEVEL |
1270 | && !(prev__cctx->flags & CC_TRACE) |
1465 | && !(cctx_current->flags & CC_TRACE) |
1271 | && !force_cctx |
1466 | && !force_cctx |
1272 | )) |
1467 | )) |
1273 | { |
1468 | { |
1274 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1469 | /* 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)); |
1470 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1276 | |
1471 | |
1277 | prev->cctx = 0; |
|
|
1278 | |
|
|
1279 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1472 | /* 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 */ |
1473 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1281 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1474 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1282 | if (!next->cctx) |
1475 | if (expect_true (!next->cctx)) |
1283 | next->cctx = cctx_get (aTHX); |
1476 | next->cctx = cctx_get (aTHX); |
1284 | |
1477 | |
1285 | cctx_put (prev__cctx); |
1478 | cctx_put (cctx_current); |
1286 | } |
1479 | } |
|
|
1480 | else |
|
|
1481 | prev->cctx = cctx_current; |
1287 | |
1482 | |
1288 | ++next->usecount; |
1483 | ++next->usecount; |
1289 | |
1484 | |
1290 | if (expect_true (!next->cctx)) |
1485 | cctx_prev = cctx_current; |
1291 | next->cctx = cctx_get (aTHX); |
1486 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1292 | |
1487 | |
1293 | has_throw = !!next->throw; |
1488 | next->cctx = 0; |
1294 | |
1489 | |
1295 | if (expect_false (prev__cctx != next->cctx)) |
1490 | if (expect_false (cctx_prev != cctx_current)) |
1296 | { |
1491 | { |
1297 | prev__cctx->top_env = PL_top_env; |
1492 | cctx_prev->top_env = PL_top_env; |
1298 | PL_top_env = next->cctx->top_env; |
1493 | PL_top_env = cctx_current->top_env; |
1299 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1494 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1300 | } |
1495 | } |
1301 | |
1496 | |
1302 | free_coro_mortal (aTHX); |
1497 | 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 | } |
1498 | } |
1318 | } |
1499 | } |
1319 | |
|
|
1320 | struct transfer_args |
|
|
1321 | { |
|
|
1322 | struct coro *prev, *next; |
|
|
1323 | }; |
|
|
1324 | |
1500 | |
1325 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1501 | #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) |
1502 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1327 | |
1503 | |
1328 | /** high level stuff ********************************************************/ |
1504 | /** high level stuff ********************************************************/ |
… | |
… | |
1330 | static int |
1506 | static int |
1331 | coro_state_destroy (pTHX_ struct coro *coro) |
1507 | coro_state_destroy (pTHX_ struct coro *coro) |
1332 | { |
1508 | { |
1333 | if (coro->flags & CF_DESTROYED) |
1509 | if (coro->flags & CF_DESTROYED) |
1334 | return 0; |
1510 | return 0; |
|
|
1511 | |
|
|
1512 | if (coro->on_destroy && !PL_dirty) |
|
|
1513 | coro->on_destroy (aTHX_ coro); |
1335 | |
1514 | |
1336 | coro->flags |= CF_DESTROYED; |
1515 | coro->flags |= CF_DESTROYED; |
1337 | |
1516 | |
1338 | if (coro->flags & CF_READY) |
1517 | if (coro->flags & CF_READY) |
1339 | { |
1518 | { |
1340 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1519 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1341 | /* alternative: look through all ready queues and remove the coro */ |
1520 | /* alternative: look through all ready queues and remove the coro */ |
1342 | LOCK; |
|
|
1343 | --coro_nready; |
1521 | --coro_nready; |
1344 | UNLOCK; |
|
|
1345 | } |
1522 | } |
1346 | else |
1523 | else |
1347 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1524 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1348 | |
1525 | |
1349 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1526 | if (coro->mainstack |
1350 | { |
1527 | && coro->mainstack != main_mainstack |
1351 | struct coro temp; |
1528 | && coro->slot |
1352 | |
1529 | && !PL_dirty) |
1353 | if (coro->flags & CF_RUNNING) |
|
|
1354 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1355 | |
|
|
1356 | save_perl (aTHX_ &temp); |
|
|
1357 | load_perl (aTHX_ coro); |
|
|
1358 | |
|
|
1359 | coro_destruct (aTHX_ coro); |
1530 | coro_destruct_perl (aTHX_ coro); |
1360 | |
|
|
1361 | load_perl (aTHX_ &temp); |
|
|
1362 | |
|
|
1363 | coro->slot = 0; |
|
|
1364 | } |
|
|
1365 | |
1531 | |
1366 | cctx_destroy (coro->cctx); |
1532 | cctx_destroy (coro->cctx); |
|
|
1533 | SvREFCNT_dec (coro->startcv); |
1367 | SvREFCNT_dec (coro->args); |
1534 | SvREFCNT_dec (coro->args); |
|
|
1535 | SvREFCNT_dec (CORO_THROW); |
1368 | |
1536 | |
1369 | if (coro->next) coro->next->prev = coro->prev; |
1537 | if (coro->next) coro->next->prev = coro->prev; |
1370 | if (coro->prev) coro->prev->next = coro->next; |
1538 | if (coro->prev) coro->prev->next = coro->next; |
1371 | if (coro == coro_first) coro_first = coro->next; |
1539 | if (coro == coro_first) coro_first = coro->next; |
1372 | |
1540 | |
… | |
… | |
1410 | # define MGf_DUP 0 |
1578 | # define MGf_DUP 0 |
1411 | #endif |
1579 | #endif |
1412 | }; |
1580 | }; |
1413 | |
1581 | |
1414 | static void |
1582 | static void |
1415 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1583 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1416 | { |
1584 | { |
1417 | ta->prev = SvSTATE (prev_sv); |
1585 | ta->prev = SvSTATE (prev_sv); |
1418 | ta->next = SvSTATE (next_sv); |
1586 | ta->next = SvSTATE (next_sv); |
1419 | TRANSFER_CHECK (*ta); |
1587 | TRANSFER_CHECK (*ta); |
1420 | } |
1588 | } |
1421 | |
1589 | |
1422 | static void |
1590 | static void |
1423 | api_transfer (SV *prev_sv, SV *next_sv) |
1591 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1424 | { |
1592 | { |
1425 | dTHX; |
|
|
1426 | struct transfer_args ta; |
1593 | struct coro_transfer_args ta; |
1427 | |
1594 | |
1428 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1595 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1429 | TRANSFER (ta, 1); |
1596 | TRANSFER (ta, 1); |
1430 | } |
1597 | } |
1431 | |
1598 | |
|
|
1599 | /*****************************************************************************/ |
|
|
1600 | /* gensub: simple closure generation utility */ |
|
|
1601 | |
|
|
1602 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1603 | |
|
|
1604 | /* create a closure from XS, returns a code reference */ |
|
|
1605 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1606 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1607 | static SV * |
|
|
1608 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1609 | { |
|
|
1610 | CV *cv = (CV *)newSV (0); |
|
|
1611 | |
|
|
1612 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1613 | |
|
|
1614 | CvANON_on (cv); |
|
|
1615 | CvISXSUB_on (cv); |
|
|
1616 | CvXSUB (cv) = xsub; |
|
|
1617 | GENSUB_ARG = arg; |
|
|
1618 | |
|
|
1619 | return newRV_noinc ((SV *)cv); |
|
|
1620 | } |
|
|
1621 | |
1432 | /** Coro ********************************************************************/ |
1622 | /** Coro ********************************************************************/ |
1433 | |
1623 | |
1434 | static void |
1624 | INLINE void |
1435 | coro_enq (pTHX_ SV *coro_sv) |
1625 | coro_enq (pTHX_ struct coro *coro) |
1436 | { |
1626 | { |
1437 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1627 | struct coro **ready = coro_ready [coro->prio - PRIO_MIN]; |
1438 | } |
|
|
1439 | |
1628 | |
1440 | static SV * |
1629 | SvREFCNT_inc_NN (coro->hv); |
|
|
1630 | |
|
|
1631 | coro->next_ready = 0; |
|
|
1632 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1633 | ready [1] = coro; |
|
|
1634 | } |
|
|
1635 | |
|
|
1636 | INLINE struct coro * |
1441 | coro_deq (pTHX) |
1637 | coro_deq (pTHX) |
1442 | { |
1638 | { |
1443 | int prio; |
1639 | int prio; |
1444 | |
1640 | |
1445 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1641 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1446 | if (AvFILLp (coro_ready [prio]) >= 0) |
1642 | { |
1447 | return av_shift (coro_ready [prio]); |
1643 | struct coro **ready = coro_ready [prio]; |
|
|
1644 | |
|
|
1645 | if (ready [0]) |
|
|
1646 | { |
|
|
1647 | struct coro *coro = ready [0]; |
|
|
1648 | ready [0] = coro->next_ready; |
|
|
1649 | return coro; |
|
|
1650 | } |
|
|
1651 | } |
1448 | |
1652 | |
1449 | return 0; |
1653 | return 0; |
1450 | } |
1654 | } |
1451 | |
1655 | |
1452 | static int |
1656 | static int |
1453 | api_ready (SV *coro_sv) |
1657 | api_ready (pTHX_ SV *coro_sv) |
1454 | { |
1658 | { |
1455 | dTHX; |
|
|
1456 | struct coro *coro; |
1659 | struct coro *coro; |
1457 | SV *sv_hook; |
1660 | SV *sv_hook; |
1458 | void (*xs_hook)(void); |
1661 | void (*xs_hook)(void); |
1459 | |
1662 | |
1460 | if (SvROK (coro_sv)) |
|
|
1461 | coro_sv = SvRV (coro_sv); |
|
|
1462 | |
|
|
1463 | coro = SvSTATE (coro_sv); |
1663 | coro = SvSTATE (coro_sv); |
1464 | |
1664 | |
1465 | if (coro->flags & CF_READY) |
1665 | if (coro->flags & CF_READY) |
1466 | return 0; |
1666 | return 0; |
1467 | |
1667 | |
1468 | coro->flags |= CF_READY; |
1668 | coro->flags |= CF_READY; |
1469 | |
1669 | |
1470 | LOCK; |
|
|
1471 | |
|
|
1472 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1670 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1473 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1671 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1474 | |
1672 | |
1475 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1673 | coro_enq (aTHX_ coro); |
1476 | ++coro_nready; |
1674 | ++coro_nready; |
1477 | |
1675 | |
1478 | UNLOCK; |
|
|
1479 | |
|
|
1480 | if (sv_hook) |
1676 | if (sv_hook) |
1481 | { |
1677 | { |
1482 | dSP; |
1678 | dSP; |
1483 | |
1679 | |
1484 | ENTER; |
1680 | ENTER; |
1485 | SAVETMPS; |
1681 | SAVETMPS; |
1486 | |
1682 | |
1487 | PUSHMARK (SP); |
1683 | PUSHMARK (SP); |
1488 | PUTBACK; |
1684 | PUTBACK; |
1489 | call_sv (sv_hook, G_DISCARD); |
1685 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1490 | SPAGAIN; |
|
|
1491 | |
1686 | |
1492 | FREETMPS; |
1687 | FREETMPS; |
1493 | LEAVE; |
1688 | LEAVE; |
1494 | } |
1689 | } |
1495 | |
1690 | |
… | |
… | |
1498 | |
1693 | |
1499 | return 1; |
1694 | return 1; |
1500 | } |
1695 | } |
1501 | |
1696 | |
1502 | static int |
1697 | static int |
1503 | api_is_ready (SV *coro_sv) |
1698 | api_is_ready (pTHX_ SV *coro_sv) |
1504 | { |
1699 | { |
1505 | dTHX; |
|
|
1506 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1700 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1507 | } |
1701 | } |
1508 | |
1702 | |
1509 | static void |
1703 | /* expects to own a reference to next->hv */ |
|
|
1704 | INLINE void |
1510 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1705 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1511 | { |
1706 | { |
1512 | SV *prev_sv, *next_sv; |
|
|
1513 | |
|
|
1514 | for (;;) |
|
|
1515 | { |
|
|
1516 | LOCK; |
|
|
1517 | next_sv = coro_deq (aTHX); |
|
|
1518 | |
|
|
1519 | /* nothing to schedule: call the idle handler */ |
|
|
1520 | if (expect_false (!next_sv)) |
|
|
1521 | { |
|
|
1522 | dSP; |
|
|
1523 | UNLOCK; |
|
|
1524 | |
|
|
1525 | ENTER; |
|
|
1526 | SAVETMPS; |
|
|
1527 | |
|
|
1528 | PUSHMARK (SP); |
|
|
1529 | PUTBACK; |
|
|
1530 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1531 | SPAGAIN; |
|
|
1532 | |
|
|
1533 | FREETMPS; |
|
|
1534 | LEAVE; |
|
|
1535 | continue; |
|
|
1536 | } |
|
|
1537 | |
|
|
1538 | ta->next = SvSTATE (next_sv); |
|
|
1539 | |
|
|
1540 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1541 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1542 | { |
|
|
1543 | UNLOCK; |
|
|
1544 | SvREFCNT_dec (next_sv); |
|
|
1545 | /* coro_nready is already taken care of by destroy */ |
|
|
1546 | continue; |
|
|
1547 | } |
|
|
1548 | |
|
|
1549 | --coro_nready; |
|
|
1550 | UNLOCK; |
|
|
1551 | break; |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | /* free this only after the transfer */ |
|
|
1555 | prev_sv = SvRV (coro_current); |
1707 | SV *prev_sv = SvRV (coro_current); |
|
|
1708 | |
1556 | ta->prev = SvSTATE (prev_sv); |
1709 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1710 | ta->next = next; |
|
|
1711 | |
1557 | TRANSFER_CHECK (*ta); |
1712 | TRANSFER_CHECK (*ta); |
1558 | assert (ta->next->flags & CF_READY); |
1713 | |
1559 | ta->next->flags &= ~CF_READY; |
|
|
1560 | SvRV_set (coro_current, next_sv); |
1714 | SvRV_set (coro_current, (SV *)next->hv); |
1561 | |
1715 | |
1562 | LOCK; |
|
|
1563 | free_coro_mortal (aTHX); |
1716 | free_coro_mortal (aTHX); |
1564 | coro_mortal = prev_sv; |
1717 | coro_mortal = prev_sv; |
1565 | UNLOCK; |
|
|
1566 | } |
1718 | } |
1567 | |
1719 | |
1568 | static void |
1720 | static void |
|
|
1721 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1722 | { |
|
|
1723 | for (;;) |
|
|
1724 | { |
|
|
1725 | struct coro *next = coro_deq (aTHX); |
|
|
1726 | |
|
|
1727 | if (expect_true (next)) |
|
|
1728 | { |
|
|
1729 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1730 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
|
|
1731 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1732 | else |
|
|
1733 | { |
|
|
1734 | next->flags &= ~CF_READY; |
|
|
1735 | --coro_nready; |
|
|
1736 | |
|
|
1737 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1738 | break; |
|
|
1739 | } |
|
|
1740 | } |
|
|
1741 | else |
|
|
1742 | { |
|
|
1743 | /* nothing to schedule: call the idle handler */ |
|
|
1744 | if (SvROK (sv_idle) |
|
|
1745 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1746 | { |
|
|
1747 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1748 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1749 | --coro_nready; |
|
|
1750 | } |
|
|
1751 | else |
|
|
1752 | { |
|
|
1753 | dSP; |
|
|
1754 | |
|
|
1755 | ENTER; |
|
|
1756 | SAVETMPS; |
|
|
1757 | |
|
|
1758 | PUSHMARK (SP); |
|
|
1759 | PUTBACK; |
|
|
1760 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1761 | |
|
|
1762 | FREETMPS; |
|
|
1763 | LEAVE; |
|
|
1764 | } |
|
|
1765 | } |
|
|
1766 | } |
|
|
1767 | } |
|
|
1768 | |
|
|
1769 | INLINE void |
1569 | prepare_cede (pTHX_ struct transfer_args *ta) |
1770 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1570 | { |
1771 | { |
1571 | api_ready (coro_current); |
1772 | api_ready (aTHX_ coro_current); |
1572 | prepare_schedule (aTHX_ ta); |
1773 | prepare_schedule (aTHX_ ta); |
1573 | } |
1774 | } |
1574 | |
1775 | |
|
|
1776 | INLINE void |
|
|
1777 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1778 | { |
|
|
1779 | SV *prev = SvRV (coro_current); |
|
|
1780 | |
|
|
1781 | if (coro_nready) |
|
|
1782 | { |
|
|
1783 | prepare_schedule (aTHX_ ta); |
|
|
1784 | api_ready (aTHX_ prev); |
|
|
1785 | } |
|
|
1786 | else |
|
|
1787 | prepare_nop (aTHX_ ta); |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | static void |
|
|
1791 | api_schedule (pTHX) |
|
|
1792 | { |
|
|
1793 | struct coro_transfer_args ta; |
|
|
1794 | |
|
|
1795 | prepare_schedule (aTHX_ &ta); |
|
|
1796 | TRANSFER (ta, 1); |
|
|
1797 | } |
|
|
1798 | |
|
|
1799 | static void |
|
|
1800 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1801 | { |
|
|
1802 | struct coro_transfer_args ta; |
|
|
1803 | struct coro *next = SvSTATE (coro_sv); |
|
|
1804 | |
|
|
1805 | SvREFCNT_inc_NN (coro_sv); |
|
|
1806 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1807 | } |
|
|
1808 | |
1575 | static int |
1809 | static int |
1576 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1810 | api_cede (pTHX) |
1577 | { |
1811 | { |
1578 | if (coro_nready) |
1812 | struct coro_transfer_args ta; |
1579 | { |
1813 | |
1580 | SV *prev = SvRV (coro_current); |
|
|
1581 | prepare_schedule (aTHX_ ta); |
1814 | prepare_cede (aTHX_ &ta); |
1582 | api_ready (prev); |
1815 | |
|
|
1816 | if (expect_true (ta.prev != ta.next)) |
|
|
1817 | { |
|
|
1818 | TRANSFER (ta, 1); |
1583 | return 1; |
1819 | return 1; |
1584 | } |
1820 | } |
1585 | else |
1821 | else |
1586 | return 0; |
1822 | return 0; |
1587 | } |
1823 | } |
1588 | |
1824 | |
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 |
1825 | static int |
1600 | api_cede (void) |
1826 | api_cede_notself (pTHX) |
1601 | { |
1827 | { |
1602 | dTHX; |
1828 | if (coro_nready) |
|
|
1829 | { |
1603 | struct transfer_args ta; |
1830 | struct coro_transfer_args ta; |
1604 | |
1831 | |
1605 | prepare_cede (aTHX_ &ta); |
1832 | prepare_cede_notself (aTHX_ &ta); |
1606 | |
|
|
1607 | if (expect_true (ta.prev != ta.next)) |
|
|
1608 | { |
|
|
1609 | TRANSFER (ta, 1); |
1833 | TRANSFER (ta, 1); |
1610 | return 1; |
1834 | return 1; |
1611 | } |
1835 | } |
1612 | else |
1836 | else |
1613 | return 0; |
1837 | return 0; |
1614 | } |
1838 | } |
1615 | |
1839 | |
1616 | static int |
1840 | 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) |
1841 | api_trace (pTHX_ SV *coro_sv, int flags) |
1633 | { |
1842 | { |
1634 | dTHX; |
|
|
1635 | struct coro *coro = SvSTATE (coro_sv); |
1843 | struct coro *coro = SvSTATE (coro_sv); |
1636 | |
1844 | |
|
|
1845 | if (coro->flags & CF_RUNNING) |
|
|
1846 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1847 | |
1637 | if (flags & CC_TRACE) |
1848 | if (flags & CC_TRACE) |
1638 | { |
1849 | { |
1639 | if (!coro->cctx) |
1850 | if (!coro->cctx) |
1640 | coro->cctx = cctx_new (); |
1851 | coro->cctx = cctx_new_run (); |
1641 | else if (!(coro->cctx->flags & CC_TRACE)) |
1852 | else if (!(coro->cctx->flags & CC_TRACE)) |
1642 | croak ("cannot enable tracing on coroutine with custom stack"); |
1853 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1643 | |
1854 | |
1644 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1855 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1645 | } |
1856 | } |
1646 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1857 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1647 | { |
1858 | { |
… | |
… | |
1652 | else |
1863 | else |
1653 | coro->slot->runops = RUNOPS_DEFAULT; |
1864 | coro->slot->runops = RUNOPS_DEFAULT; |
1654 | } |
1865 | } |
1655 | } |
1866 | } |
1656 | |
1867 | |
1657 | #if 0 |
1868 | static void |
|
|
1869 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1870 | { |
|
|
1871 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1872 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1873 | |
|
|
1874 | if (on_destroyp) |
|
|
1875 | { |
|
|
1876 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1877 | |
|
|
1878 | while (AvFILLp (on_destroy) >= 0) |
|
|
1879 | { |
|
|
1880 | dSP; /* don't disturb outer sp */ |
|
|
1881 | SV *cb = av_pop (on_destroy); |
|
|
1882 | |
|
|
1883 | PUSHMARK (SP); |
|
|
1884 | |
|
|
1885 | if (statusp) |
|
|
1886 | { |
|
|
1887 | int i; |
|
|
1888 | AV *status = (AV *)SvRV (*statusp); |
|
|
1889 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1890 | |
|
|
1891 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1892 | PUSHs (AvARRAY (status)[i]); |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | PUTBACK; |
|
|
1896 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1897 | } |
|
|
1898 | } |
|
|
1899 | } |
|
|
1900 | |
|
|
1901 | static void |
|
|
1902 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1903 | { |
|
|
1904 | int i; |
|
|
1905 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1906 | AV *av = newAV (); |
|
|
1907 | |
|
|
1908 | av_extend (av, items - 1); |
|
|
1909 | for (i = 0; i < items; ++i) |
|
|
1910 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1911 | |
|
|
1912 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1913 | |
|
|
1914 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1915 | api_ready (aTHX_ sv_manager); |
|
|
1916 | |
|
|
1917 | frame->prepare = prepare_schedule; |
|
|
1918 | frame->check = slf_check_repeat; |
|
|
1919 | |
|
|
1920 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
1921 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
1922 | /*coro_unwind_stacks (aTHX);*/ |
|
|
1923 | } |
|
|
1924 | |
|
|
1925 | /*****************************************************************************/ |
|
|
1926 | /* async pool handler */ |
|
|
1927 | |
1658 | static int |
1928 | static int |
1659 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1929 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
1660 | { |
1930 | { |
1661 | AV *padlist; |
1931 | HV *hv = (HV *)SvRV (coro_current); |
1662 | AV *av = (AV *)mg->mg_obj; |
1932 | struct coro *coro = (struct coro *)frame->data; |
1663 | |
1933 | |
1664 | abort (); |
1934 | if (!coro->invoke_cb) |
|
|
1935 | return 1; /* loop till we have invoke */ |
|
|
1936 | else |
|
|
1937 | { |
|
|
1938 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1939 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1940 | |
|
|
1941 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1942 | |
|
|
1943 | { |
|
|
1944 | dSP; |
|
|
1945 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1946 | PUTBACK; |
|
|
1947 | } |
|
|
1948 | |
|
|
1949 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1950 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1951 | coro->invoke_av = 0; |
|
|
1952 | |
|
|
1953 | return 0; |
|
|
1954 | } |
|
|
1955 | } |
|
|
1956 | |
|
|
1957 | static void |
|
|
1958 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1959 | { |
|
|
1960 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1961 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1962 | |
|
|
1963 | if (expect_true (coro->saved_deffh)) |
|
|
1964 | { |
|
|
1965 | /* subsequent iteration */ |
|
|
1966 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1967 | coro->saved_deffh = 0; |
|
|
1968 | |
|
|
1969 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1970 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1971 | { |
|
|
1972 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1973 | coro->invoke_av = newAV (); |
|
|
1974 | |
|
|
1975 | frame->prepare = prepare_nop; |
|
|
1976 | } |
|
|
1977 | else |
|
|
1978 | { |
|
|
1979 | av_clear (GvAV (PL_defgv)); |
|
|
1980 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1981 | |
|
|
1982 | coro->prio = 0; |
|
|
1983 | |
|
|
1984 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1985 | api_trace (aTHX_ coro_current, 0); |
|
|
1986 | |
|
|
1987 | frame->prepare = prepare_schedule; |
|
|
1988 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1989 | } |
|
|
1990 | } |
|
|
1991 | else |
|
|
1992 | { |
|
|
1993 | /* first iteration, simply fall through */ |
|
|
1994 | frame->prepare = prepare_nop; |
|
|
1995 | } |
|
|
1996 | |
|
|
1997 | frame->check = slf_check_pool_handler; |
|
|
1998 | frame->data = (void *)coro; |
|
|
1999 | } |
|
|
2000 | |
|
|
2001 | /*****************************************************************************/ |
|
|
2002 | /* rouse callback */ |
|
|
2003 | |
|
|
2004 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2005 | |
|
|
2006 | static void |
|
|
2007 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2008 | { |
|
|
2009 | dXSARGS; |
|
|
2010 | SV *data = (SV *)GENSUB_ARG; |
|
|
2011 | |
|
|
2012 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2013 | { |
|
|
2014 | /* first call, set args */ |
|
|
2015 | SV *coro = SvRV (data); |
|
|
2016 | AV *av = newAV (); |
|
|
2017 | |
|
|
2018 | SvRV_set (data, (SV *)av); |
|
|
2019 | |
|
|
2020 | /* better take a full copy of the arguments */ |
|
|
2021 | while (items--) |
|
|
2022 | av_store (av, items, newSVsv (ST (items))); |
|
|
2023 | |
|
|
2024 | api_ready (aTHX_ coro); |
|
|
2025 | SvREFCNT_dec (coro); |
|
|
2026 | } |
|
|
2027 | |
|
|
2028 | XSRETURN_EMPTY; |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | static int |
|
|
2032 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2033 | { |
|
|
2034 | SV *data = (SV *)frame->data; |
|
|
2035 | |
|
|
2036 | if (CORO_THROW) |
|
|
2037 | return 0; |
|
|
2038 | |
|
|
2039 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2040 | return 1; |
|
|
2041 | |
|
|
2042 | /* now push all results on the stack */ |
|
|
2043 | { |
|
|
2044 | dSP; |
|
|
2045 | AV *av = (AV *)SvRV (data); |
|
|
2046 | int i; |
|
|
2047 | |
|
|
2048 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2049 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2050 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2051 | |
|
|
2052 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2053 | AvFILLp (av) = -1; |
|
|
2054 | av_undef (av); |
|
|
2055 | |
|
|
2056 | PUTBACK; |
|
|
2057 | } |
1665 | |
2058 | |
1666 | return 0; |
2059 | return 0; |
1667 | } |
2060 | } |
1668 | |
2061 | |
1669 | static MGVTBL coro_gensub_vtbl = { |
2062 | static void |
1670 | 0, 0, 0, 0, |
2063 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1671 | coro_gensub_free |
2064 | { |
1672 | }; |
2065 | SV *cb; |
1673 | #endif |
2066 | |
|
|
2067 | if (items) |
|
|
2068 | cb = arg [0]; |
|
|
2069 | else |
|
|
2070 | { |
|
|
2071 | struct coro *coro = SvSTATE_current; |
|
|
2072 | |
|
|
2073 | if (!coro->rouse_cb) |
|
|
2074 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2075 | |
|
|
2076 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2077 | coro->rouse_cb = 0; |
|
|
2078 | } |
|
|
2079 | |
|
|
2080 | if (!SvROK (cb) |
|
|
2081 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2082 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2083 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2084 | |
|
|
2085 | { |
|
|
2086 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
2087 | SV *data = (SV *)GENSUB_ARG; |
|
|
2088 | |
|
|
2089 | frame->data = (void *)data; |
|
|
2090 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2091 | frame->check = slf_check_rouse_wait; |
|
|
2092 | } |
|
|
2093 | } |
|
|
2094 | |
|
|
2095 | static SV * |
|
|
2096 | coro_new_rouse_cb (pTHX) |
|
|
2097 | { |
|
|
2098 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2099 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2100 | SV *data = newRV_inc ((SV *)hv); |
|
|
2101 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2102 | |
|
|
2103 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2104 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2105 | |
|
|
2106 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2107 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2108 | |
|
|
2109 | return cb; |
|
|
2110 | } |
|
|
2111 | |
|
|
2112 | /*****************************************************************************/ |
|
|
2113 | /* schedule-like-function opcode (SLF) */ |
|
|
2114 | |
|
|
2115 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2116 | static const CV *slf_cv; |
|
|
2117 | static SV **slf_argv; |
|
|
2118 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2119 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2120 | |
|
|
2121 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2122 | /* recreate the stack frame as perl will on following calls */ |
|
|
2123 | /* since entersub cleared the stack */ |
|
|
2124 | static OP * |
|
|
2125 | pp_restore (pTHX) |
|
|
2126 | { |
|
|
2127 | int i; |
|
|
2128 | SV **SP = PL_stack_base + slf_ax; |
|
|
2129 | |
|
|
2130 | PUSHMARK (SP); |
|
|
2131 | |
|
|
2132 | EXTEND (SP, slf_argc + 1); |
|
|
2133 | |
|
|
2134 | for (i = 0; i < slf_argc; ++i) |
|
|
2135 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2136 | |
|
|
2137 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2138 | |
|
|
2139 | RETURNOP (slf_restore.op_first); |
|
|
2140 | } |
|
|
2141 | |
|
|
2142 | static void |
|
|
2143 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2144 | { |
|
|
2145 | SV **arg = (SV **)slf_frame.data; |
|
|
2146 | |
|
|
2147 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | static void |
|
|
2151 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2152 | { |
|
|
2153 | if (items != 2) |
|
|
2154 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2155 | |
|
|
2156 | frame->prepare = slf_prepare_transfer; |
|
|
2157 | frame->check = slf_check_nop; |
|
|
2158 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | static void |
|
|
2162 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2163 | { |
|
|
2164 | frame->prepare = prepare_schedule; |
|
|
2165 | frame->check = slf_check_nop; |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | static void |
|
|
2169 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2170 | { |
|
|
2171 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2172 | |
|
|
2173 | SvREFCNT_inc_NN (next->hv); |
|
|
2174 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2175 | } |
|
|
2176 | |
|
|
2177 | static void |
|
|
2178 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2179 | { |
|
|
2180 | if (!items) |
|
|
2181 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2182 | |
|
|
2183 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2184 | frame->prepare = slf_prepare_schedule_to; |
|
|
2185 | frame->check = slf_check_nop; |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | static void |
|
|
2189 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2190 | { |
|
|
2191 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2192 | |
|
|
2193 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2194 | } |
|
|
2195 | |
|
|
2196 | static void |
|
|
2197 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2198 | { |
|
|
2199 | frame->prepare = prepare_cede; |
|
|
2200 | frame->check = slf_check_nop; |
|
|
2201 | } |
|
|
2202 | |
|
|
2203 | static void |
|
|
2204 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2205 | { |
|
|
2206 | frame->prepare = prepare_cede_notself; |
|
|
2207 | frame->check = slf_check_nop; |
|
|
2208 | } |
|
|
2209 | |
|
|
2210 | /* |
|
|
2211 | * these not obviously related functions are all rolled into one |
|
|
2212 | * function to increase chances that they all will call transfer with the same |
|
|
2213 | * stack offset |
|
|
2214 | * SLF stands for "schedule-like-function". |
|
|
2215 | */ |
|
|
2216 | static OP * |
|
|
2217 | pp_slf (pTHX) |
|
|
2218 | { |
|
|
2219 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2220 | |
|
|
2221 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2222 | /* the latter happens when a new coro has been started */ |
|
|
2223 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2224 | if (expect_true (!slf_frame.prepare)) |
|
|
2225 | { |
|
|
2226 | /* first iteration */ |
|
|
2227 | dSP; |
|
|
2228 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2229 | int items = SP - arg; /* args without function object */ |
|
|
2230 | SV *gv = *sp; |
|
|
2231 | |
|
|
2232 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2233 | /* for us, divert to the real entersub */ |
|
|
2234 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2235 | || !GvCV (gv) |
|
|
2236 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2237 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2238 | |
|
|
2239 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2240 | { |
|
|
2241 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2242 | AV *av = GvAV (PL_defgv); |
|
|
2243 | arg = AvARRAY (av); |
|
|
2244 | items = AvFILLp (av) + 1; |
|
|
2245 | } |
|
|
2246 | |
|
|
2247 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2248 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2249 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2250 | |
|
|
2251 | /* pop args */ |
|
|
2252 | SP = PL_stack_base + POPMARK; |
|
|
2253 | |
|
|
2254 | PUTBACK; |
|
|
2255 | } |
|
|
2256 | |
|
|
2257 | /* now that we have a slf_frame, interpret it! */ |
|
|
2258 | /* we use a callback system not to make the code needlessly */ |
|
|
2259 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2260 | |
|
|
2261 | do |
|
|
2262 | { |
|
|
2263 | struct coro_transfer_args ta; |
|
|
2264 | |
|
|
2265 | slf_frame.prepare (aTHX_ &ta); |
|
|
2266 | TRANSFER (ta, 0); |
|
|
2267 | |
|
|
2268 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2269 | } |
|
|
2270 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2271 | |
|
|
2272 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2273 | |
|
|
2274 | /* exception handling */ |
|
|
2275 | if (expect_false (CORO_THROW)) |
|
|
2276 | { |
|
|
2277 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2278 | |
|
|
2279 | CORO_THROW = 0; |
|
|
2280 | sv_setsv (ERRSV, exception); |
|
|
2281 | croak (0); |
|
|
2282 | } |
|
|
2283 | |
|
|
2284 | /* return value handling - mostly like entersub */ |
|
|
2285 | /* make sure we put something on the stack in scalar context */ |
|
|
2286 | if (GIMME_V == G_SCALAR) |
|
|
2287 | { |
|
|
2288 | dSP; |
|
|
2289 | SV **bot = PL_stack_base + checkmark; |
|
|
2290 | |
|
|
2291 | if (sp == bot) /* too few, push undef */ |
|
|
2292 | bot [1] = &PL_sv_undef; |
|
|
2293 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2294 | bot [1] = *sp; |
|
|
2295 | |
|
|
2296 | SP = bot + 1; |
|
|
2297 | |
|
|
2298 | PUTBACK; |
|
|
2299 | } |
|
|
2300 | |
|
|
2301 | return NORMAL; |
|
|
2302 | } |
|
|
2303 | |
|
|
2304 | static void |
|
|
2305 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2306 | { |
|
|
2307 | int i; |
|
|
2308 | SV **arg = PL_stack_base + ax; |
|
|
2309 | int items = PL_stack_sp - arg + 1; |
|
|
2310 | |
|
|
2311 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2312 | |
|
|
2313 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2314 | && PL_op->op_ppaddr != pp_slf) |
|
|
2315 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2316 | |
|
|
2317 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2318 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2319 | slf_cv = cv; |
|
|
2320 | |
|
|
2321 | /* we patch the op, and then re-run the whole call */ |
|
|
2322 | /* we have to put the same argument on the stack for this to work */ |
|
|
2323 | /* and this will be done by pp_restore */ |
|
|
2324 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2325 | slf_restore.op_type = OP_CUSTOM; |
|
|
2326 | slf_restore.op_ppaddr = pp_restore; |
|
|
2327 | slf_restore.op_first = PL_op; |
|
|
2328 | |
|
|
2329 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2330 | |
|
|
2331 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2332 | { |
|
|
2333 | if (items > slf_arga) |
|
|
2334 | { |
|
|
2335 | slf_arga = items; |
|
|
2336 | free (slf_argv); |
|
|
2337 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2338 | } |
|
|
2339 | |
|
|
2340 | slf_argc = items; |
|
|
2341 | |
|
|
2342 | for (i = 0; i < items; ++i) |
|
|
2343 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2344 | } |
|
|
2345 | else |
|
|
2346 | slf_argc = 0; |
|
|
2347 | |
|
|
2348 | PL_op->op_ppaddr = pp_slf; |
|
|
2349 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2350 | |
|
|
2351 | PL_op = (OP *)&slf_restore; |
|
|
2352 | } |
|
|
2353 | |
|
|
2354 | /*****************************************************************************/ |
|
|
2355 | /* dynamic wind */ |
|
|
2356 | |
|
|
2357 | static void |
|
|
2358 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2359 | { |
|
|
2360 | dSP; |
|
|
2361 | |
|
|
2362 | PUSHSTACK; |
|
|
2363 | |
|
|
2364 | PUSHMARK (SP); |
|
|
2365 | PUTBACK; |
|
|
2366 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2367 | SPAGAIN; |
|
|
2368 | |
|
|
2369 | POPSTACK; |
|
|
2370 | } |
|
|
2371 | |
|
|
2372 | static SV * |
|
|
2373 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2374 | { |
|
|
2375 | AV *av = *avp; |
|
|
2376 | SV *res = av_pop (av); |
|
|
2377 | |
|
|
2378 | if (AvFILLp (av) < 0) |
|
|
2379 | { |
|
|
2380 | *avp = 0; |
|
|
2381 | SvREFCNT_dec (av); |
|
|
2382 | } |
|
|
2383 | |
|
|
2384 | return res; |
|
|
2385 | } |
|
|
2386 | |
|
|
2387 | static void |
|
|
2388 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2389 | { |
|
|
2390 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2391 | SvREFCNT_dec (cb); |
|
|
2392 | } |
|
|
2393 | |
|
|
2394 | static void |
|
|
2395 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2396 | { |
|
|
2397 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2398 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2399 | } |
1674 | |
2400 | |
1675 | /*****************************************************************************/ |
2401 | /*****************************************************************************/ |
1676 | /* PerlIO::cede */ |
2402 | /* PerlIO::cede */ |
1677 | |
2403 | |
1678 | typedef struct |
2404 | typedef struct |
… | |
… | |
1706 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2432 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1707 | double now = nvtime (); |
2433 | double now = nvtime (); |
1708 | |
2434 | |
1709 | if (now >= self->next) |
2435 | if (now >= self->next) |
1710 | { |
2436 | { |
1711 | api_cede (); |
2437 | api_cede (aTHX); |
1712 | self->next = now + self->every; |
2438 | self->next = now + self->every; |
1713 | } |
2439 | } |
1714 | |
2440 | |
1715 | return PerlIOBuf_flush (aTHX_ f); |
2441 | return PerlIOBuf_flush (aTHX_ f); |
1716 | } |
2442 | } |
… | |
… | |
1745 | PerlIOBuf_get_ptr, |
2471 | PerlIOBuf_get_ptr, |
1746 | PerlIOBuf_get_cnt, |
2472 | PerlIOBuf_get_cnt, |
1747 | PerlIOBuf_set_ptrcnt, |
2473 | PerlIOBuf_set_ptrcnt, |
1748 | }; |
2474 | }; |
1749 | |
2475 | |
|
|
2476 | /*****************************************************************************/ |
|
|
2477 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2478 | |
|
|
2479 | static SV * |
|
|
2480 | coro_waitarray_new (pTHX_ int count) |
|
|
2481 | { |
|
|
2482 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2483 | AV *av = newAV (); |
|
|
2484 | SV **ary; |
|
|
2485 | |
|
|
2486 | /* unfortunately, building manually saves memory */ |
|
|
2487 | Newx (ary, 2, SV *); |
|
|
2488 | AvALLOC (av) = ary; |
|
|
2489 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2490 | AvARRAY (av) = ary; |
|
|
2491 | #else |
|
|
2492 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2493 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2494 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2495 | #endif |
|
|
2496 | AvMAX (av) = 1; |
|
|
2497 | AvFILLp (av) = 0; |
|
|
2498 | ary [0] = newSViv (count); |
|
|
2499 | |
|
|
2500 | return newRV_noinc ((SV *)av); |
|
|
2501 | } |
|
|
2502 | |
|
|
2503 | /* semaphore */ |
|
|
2504 | |
|
|
2505 | static void |
|
|
2506 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2507 | { |
|
|
2508 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2509 | IV count = SvIVX (count_sv); |
|
|
2510 | |
|
|
2511 | count += adjust; |
|
|
2512 | SvIVX (count_sv) = count; |
|
|
2513 | |
|
|
2514 | /* now wake up as many waiters as are expected to lock */ |
|
|
2515 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2516 | { |
|
|
2517 | SV *cb; |
|
|
2518 | |
|
|
2519 | /* swap first two elements so we can shift a waiter */ |
|
|
2520 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2521 | AvARRAY (av)[1] = count_sv; |
|
|
2522 | cb = av_shift (av); |
|
|
2523 | |
|
|
2524 | if (SvOBJECT (cb)) |
|
|
2525 | { |
|
|
2526 | api_ready (aTHX_ cb); |
|
|
2527 | --count; |
|
|
2528 | } |
|
|
2529 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2530 | { |
|
|
2531 | dSP; |
|
|
2532 | PUSHMARK (SP); |
|
|
2533 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2534 | PUTBACK; |
|
|
2535 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2536 | } |
|
|
2537 | |
|
|
2538 | SvREFCNT_dec (cb); |
|
|
2539 | } |
|
|
2540 | } |
|
|
2541 | |
|
|
2542 | static void |
|
|
2543 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2544 | { |
|
|
2545 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2546 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2547 | } |
|
|
2548 | |
|
|
2549 | static int |
|
|
2550 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2551 | { |
|
|
2552 | AV *av = (AV *)frame->data; |
|
|
2553 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2554 | |
|
|
2555 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2556 | if (CORO_THROW) |
|
|
2557 | return 0; |
|
|
2558 | else if (SvIVX (count_sv) > 0) |
|
|
2559 | { |
|
|
2560 | SvSTATE_current->on_destroy = 0; |
|
|
2561 | |
|
|
2562 | if (acquire) |
|
|
2563 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2564 | else |
|
|
2565 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2566 | |
|
|
2567 | return 0; |
|
|
2568 | } |
|
|
2569 | else |
|
|
2570 | { |
|
|
2571 | int i; |
|
|
2572 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2573 | /* waiters list and only add us if we aren't in there already */ |
|
|
2574 | /* this avoids some degenerate memory usage cases */ |
|
|
2575 | |
|
|
2576 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2577 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2578 | return 1; |
|
|
2579 | |
|
|
2580 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2581 | return 1; |
|
|
2582 | } |
|
|
2583 | } |
|
|
2584 | |
|
|
2585 | static int |
|
|
2586 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2587 | { |
|
|
2588 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2589 | } |
|
|
2590 | |
|
|
2591 | static int |
|
|
2592 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2593 | { |
|
|
2594 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2595 | } |
|
|
2596 | |
|
|
2597 | static void |
|
|
2598 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2599 | { |
|
|
2600 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2601 | |
|
|
2602 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2603 | { |
|
|
2604 | frame->data = (void *)av; |
|
|
2605 | frame->prepare = prepare_nop; |
|
|
2606 | } |
|
|
2607 | else |
|
|
2608 | { |
|
|
2609 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2610 | |
|
|
2611 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2612 | frame->prepare = prepare_schedule; |
|
|
2613 | |
|
|
2614 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2615 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2616 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2617 | } |
|
|
2618 | } |
|
|
2619 | |
|
|
2620 | static void |
|
|
2621 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2622 | { |
|
|
2623 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2624 | frame->check = slf_check_semaphore_down; |
|
|
2625 | } |
|
|
2626 | |
|
|
2627 | static void |
|
|
2628 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2629 | { |
|
|
2630 | if (items >= 2) |
|
|
2631 | { |
|
|
2632 | /* callback form */ |
|
|
2633 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2634 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2635 | |
|
|
2636 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2637 | |
|
|
2638 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2639 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2640 | |
|
|
2641 | frame->prepare = prepare_nop; |
|
|
2642 | frame->check = slf_check_nop; |
|
|
2643 | } |
|
|
2644 | else |
|
|
2645 | { |
|
|
2646 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2647 | frame->check = slf_check_semaphore_wait; |
|
|
2648 | } |
|
|
2649 | } |
|
|
2650 | |
|
|
2651 | /* signal */ |
|
|
2652 | |
|
|
2653 | static void |
|
|
2654 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2655 | { |
|
|
2656 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2657 | |
|
|
2658 | /* now signal count waiters */ |
|
|
2659 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2660 | { |
|
|
2661 | SV *cb; |
|
|
2662 | |
|
|
2663 | /* swap first two elements so we can shift a waiter */ |
|
|
2664 | cb = AvARRAY (av)[0]; |
|
|
2665 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2666 | AvARRAY (av)[1] = cb; |
|
|
2667 | |
|
|
2668 | cb = av_shift (av); |
|
|
2669 | |
|
|
2670 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
2671 | { |
|
|
2672 | dSP; |
|
|
2673 | PUSHMARK (SP); |
|
|
2674 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2675 | PUTBACK; |
|
|
2676 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2677 | } |
|
|
2678 | else |
|
|
2679 | { |
|
|
2680 | api_ready (aTHX_ cb); |
|
|
2681 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2682 | } |
|
|
2683 | |
|
|
2684 | SvREFCNT_dec (cb); |
|
|
2685 | |
|
|
2686 | --count; |
|
|
2687 | } |
|
|
2688 | } |
|
|
2689 | |
|
|
2690 | static int |
|
|
2691 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2692 | { |
|
|
2693 | /* if we are about to throw, also stop waiting */ |
|
|
2694 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2695 | } |
|
|
2696 | |
|
|
2697 | static void |
|
|
2698 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2699 | { |
|
|
2700 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2701 | |
|
|
2702 | if (items >= 2) |
|
|
2703 | { |
|
|
2704 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2705 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2706 | |
|
|
2707 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2708 | coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ |
|
|
2709 | |
|
|
2710 | frame->prepare = prepare_nop; |
|
|
2711 | frame->check = slf_check_nop; |
|
|
2712 | } |
|
|
2713 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
2714 | { |
|
|
2715 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2716 | frame->prepare = prepare_nop; |
|
|
2717 | frame->check = slf_check_nop; |
|
|
2718 | } |
|
|
2719 | else |
|
|
2720 | { |
|
|
2721 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
2722 | |
|
|
2723 | av_push (av, waiter); |
|
|
2724 | |
|
|
2725 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2726 | frame->prepare = prepare_schedule; |
|
|
2727 | frame->check = slf_check_signal_wait; |
|
|
2728 | } |
|
|
2729 | } |
|
|
2730 | |
|
|
2731 | /*****************************************************************************/ |
|
|
2732 | /* Coro::AIO */ |
|
|
2733 | |
|
|
2734 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2735 | |
|
|
2736 | /* helper storage struct */ |
|
|
2737 | struct io_state |
|
|
2738 | { |
|
|
2739 | int errorno; |
|
|
2740 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2741 | int laststatval; |
|
|
2742 | Stat_t statcache; |
|
|
2743 | }; |
|
|
2744 | |
|
|
2745 | static void |
|
|
2746 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2747 | { |
|
|
2748 | dXSARGS; |
|
|
2749 | AV *state = (AV *)GENSUB_ARG; |
|
|
2750 | SV *coro = av_pop (state); |
|
|
2751 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2752 | |
|
|
2753 | av_extend (state, items - 1); |
|
|
2754 | |
|
|
2755 | sv_upgrade (data_sv, SVt_PV); |
|
|
2756 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2757 | SvPOK_only (data_sv); |
|
|
2758 | |
|
|
2759 | { |
|
|
2760 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2761 | |
|
|
2762 | data->errorno = errno; |
|
|
2763 | data->laststype = PL_laststype; |
|
|
2764 | data->laststatval = PL_laststatval; |
|
|
2765 | data->statcache = PL_statcache; |
|
|
2766 | } |
|
|
2767 | |
|
|
2768 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2769 | { |
|
|
2770 | int i; |
|
|
2771 | |
|
|
2772 | for (i = 0; i < items; ++i) |
|
|
2773 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2774 | } |
|
|
2775 | |
|
|
2776 | av_push (state, data_sv); |
|
|
2777 | |
|
|
2778 | api_ready (aTHX_ coro); |
|
|
2779 | SvREFCNT_dec (coro); |
|
|
2780 | SvREFCNT_dec ((AV *)state); |
|
|
2781 | } |
|
|
2782 | |
|
|
2783 | static int |
|
|
2784 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2785 | { |
|
|
2786 | AV *state = (AV *)frame->data; |
|
|
2787 | |
|
|
2788 | /* if we are about to throw, return early */ |
|
|
2789 | /* this does not cancel the aio request, but at least */ |
|
|
2790 | /* it quickly returns */ |
|
|
2791 | if (CORO_THROW) |
|
|
2792 | return 0; |
|
|
2793 | |
|
|
2794 | /* one element that is an RV? repeat! */ |
|
|
2795 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2796 | return 1; |
|
|
2797 | |
|
|
2798 | /* restore status */ |
|
|
2799 | { |
|
|
2800 | SV *data_sv = av_pop (state); |
|
|
2801 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2802 | |
|
|
2803 | errno = data->errorno; |
|
|
2804 | PL_laststype = data->laststype; |
|
|
2805 | PL_laststatval = data->laststatval; |
|
|
2806 | PL_statcache = data->statcache; |
|
|
2807 | |
|
|
2808 | SvREFCNT_dec (data_sv); |
|
|
2809 | } |
|
|
2810 | |
|
|
2811 | /* push result values */ |
|
|
2812 | { |
|
|
2813 | dSP; |
|
|
2814 | int i; |
|
|
2815 | |
|
|
2816 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2817 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2818 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2819 | |
|
|
2820 | PUTBACK; |
|
|
2821 | } |
|
|
2822 | |
|
|
2823 | return 0; |
|
|
2824 | } |
|
|
2825 | |
|
|
2826 | static void |
|
|
2827 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2828 | { |
|
|
2829 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2830 | SV *coro_hv = SvRV (coro_current); |
|
|
2831 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2832 | |
|
|
2833 | /* put our coroutine id on the state arg */ |
|
|
2834 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2835 | |
|
|
2836 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2837 | if (coro->prio) |
|
|
2838 | { |
|
|
2839 | dSP; |
|
|
2840 | |
|
|
2841 | static SV *prio_cv; |
|
|
2842 | static SV *prio_sv; |
|
|
2843 | |
|
|
2844 | if (expect_false (!prio_cv)) |
|
|
2845 | { |
|
|
2846 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2847 | prio_sv = newSViv (0); |
|
|
2848 | } |
|
|
2849 | |
|
|
2850 | PUSHMARK (SP); |
|
|
2851 | sv_setiv (prio_sv, coro->prio); |
|
|
2852 | XPUSHs (prio_sv); |
|
|
2853 | |
|
|
2854 | PUTBACK; |
|
|
2855 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2856 | } |
|
|
2857 | |
|
|
2858 | /* now call the original request */ |
|
|
2859 | { |
|
|
2860 | dSP; |
|
|
2861 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2862 | int i; |
|
|
2863 | |
|
|
2864 | PUSHMARK (SP); |
|
|
2865 | |
|
|
2866 | /* first push all args to the stack */ |
|
|
2867 | EXTEND (SP, items + 1); |
|
|
2868 | |
|
|
2869 | for (i = 0; i < items; ++i) |
|
|
2870 | PUSHs (arg [i]); |
|
|
2871 | |
|
|
2872 | /* now push the callback closure */ |
|
|
2873 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2874 | |
|
|
2875 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2876 | PUTBACK; |
|
|
2877 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2878 | } |
|
|
2879 | |
|
|
2880 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2881 | frame->data = (void *)state; |
|
|
2882 | frame->prepare = prepare_schedule; |
|
|
2883 | frame->check = slf_check_aio_req; |
|
|
2884 | } |
|
|
2885 | |
|
|
2886 | static void |
|
|
2887 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2888 | { |
|
|
2889 | dXSARGS; |
|
|
2890 | |
|
|
2891 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2892 | |
|
|
2893 | XSRETURN_EMPTY; |
|
|
2894 | } |
|
|
2895 | |
|
|
2896 | /*****************************************************************************/ |
|
|
2897 | |
|
|
2898 | #if CORO_CLONE |
|
|
2899 | # include "clone.c" |
|
|
2900 | #endif |
1750 | |
2901 | |
1751 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2902 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1752 | |
2903 | |
1753 | PROTOTYPES: DISABLE |
2904 | PROTOTYPES: DISABLE |
1754 | |
2905 | |
1755 | BOOT: |
2906 | BOOT: |
1756 | { |
2907 | { |
1757 | #ifdef USE_ITHREADS |
2908 | #ifdef USE_ITHREADS |
1758 | MUTEX_INIT (&coro_lock); |
2909 | # if CORO_PTHREAD |
|
|
2910 | coro_thx = PERL_GET_CONTEXT; |
|
|
2911 | # endif |
1759 | #endif |
2912 | #endif |
1760 | BOOT_PAGESIZE; |
2913 | BOOT_PAGESIZE; |
|
|
2914 | |
|
|
2915 | cctx_current = cctx_new_empty (); |
1761 | |
2916 | |
1762 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2917 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1763 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2918 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1764 | |
2919 | |
1765 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2920 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
… | |
… | |
1781 | main_top_env = PL_top_env; |
2936 | main_top_env = PL_top_env; |
1782 | |
2937 | |
1783 | while (main_top_env->je_prev) |
2938 | while (main_top_env->je_prev) |
1784 | main_top_env = main_top_env->je_prev; |
2939 | main_top_env = main_top_env->je_prev; |
1785 | |
2940 | |
|
|
2941 | { |
|
|
2942 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2943 | |
|
|
2944 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2945 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
2946 | |
|
|
2947 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2948 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
2949 | } |
|
|
2950 | |
1786 | coroapi.ver = CORO_API_VERSION; |
2951 | coroapi.ver = CORO_API_VERSION; |
1787 | coroapi.rev = CORO_API_REVISION; |
2952 | coroapi.rev = CORO_API_REVISION; |
|
|
2953 | |
1788 | coroapi.transfer = api_transfer; |
2954 | coroapi.transfer = api_transfer; |
|
|
2955 | |
|
|
2956 | coroapi.sv_state = SvSTATE_; |
|
|
2957 | coroapi.execute_slf = api_execute_slf; |
|
|
2958 | coroapi.prepare_nop = prepare_nop; |
|
|
2959 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2960 | coroapi.prepare_cede = prepare_cede; |
|
|
2961 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1789 | |
2962 | |
1790 | { |
2963 | { |
1791 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2964 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1792 | |
2965 | |
1793 | if (!svp) croak ("Time::HiRes is required"); |
2966 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
1799 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2972 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1800 | } |
2973 | } |
1801 | |
2974 | |
1802 | SV * |
2975 | SV * |
1803 | new (char *klass, ...) |
2976 | new (char *klass, ...) |
|
|
2977 | ALIAS: |
|
|
2978 | Coro::new = 1 |
1804 | CODE: |
2979 | CODE: |
1805 | { |
2980 | { |
1806 | struct coro *coro; |
2981 | struct coro *coro; |
1807 | MAGIC *mg; |
2982 | MAGIC *mg; |
1808 | HV *hv; |
2983 | HV *hv; |
|
|
2984 | CV *cb; |
1809 | int i; |
2985 | int i; |
|
|
2986 | |
|
|
2987 | if (items > 1) |
|
|
2988 | { |
|
|
2989 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2990 | |
|
|
2991 | if (!ix) |
|
|
2992 | { |
|
|
2993 | if (CvISXSUB (cb)) |
|
|
2994 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2995 | |
|
|
2996 | if (!CvROOT (cb)) |
|
|
2997 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2998 | } |
|
|
2999 | } |
1810 | |
3000 | |
1811 | Newz (0, coro, 1, struct coro); |
3001 | Newz (0, coro, 1, struct coro); |
1812 | coro->args = newAV (); |
3002 | coro->args = newAV (); |
1813 | coro->flags = CF_NEW; |
3003 | coro->flags = CF_NEW; |
1814 | |
3004 | |
… | |
… | |
1819 | coro->hv = hv = newHV (); |
3009 | coro->hv = hv = newHV (); |
1820 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
3010 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
1821 | mg->mg_flags |= MGf_DUP; |
3011 | mg->mg_flags |= MGf_DUP; |
1822 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
3012 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1823 | |
3013 | |
|
|
3014 | if (items > 1) |
|
|
3015 | { |
1824 | av_extend (coro->args, items - 1); |
3016 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
3017 | |
|
|
3018 | if (ix) |
|
|
3019 | { |
|
|
3020 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3021 | cb = cv_coro_run; |
|
|
3022 | } |
|
|
3023 | |
|
|
3024 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3025 | |
1825 | for (i = 1; i < items; i++) |
3026 | for (i = 2; i < items; i++) |
1826 | av_push (coro->args, newSVsv (ST (i))); |
3027 | av_push (coro->args, newSVsv (ST (i))); |
|
|
3028 | } |
1827 | } |
3029 | } |
1828 | OUTPUT: |
3030 | OUTPUT: |
1829 | RETVAL |
3031 | RETVAL |
1830 | |
3032 | |
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 |
3033 | void |
1835 | _set_stacklevel (...) |
3034 | transfer (...) |
1836 | ALIAS: |
3035 | PROTOTYPE: $$ |
1837 | Coro::State::transfer = 1 |
3036 | CODE: |
1838 | Coro::schedule = 2 |
3037 | 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 | |
3038 | |
1883 | bool |
3039 | bool |
1884 | _destroy (SV *coro_sv) |
3040 | _destroy (SV *coro_sv) |
1885 | CODE: |
3041 | CODE: |
1886 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
3042 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1891 | _exit (int code) |
3047 | _exit (int code) |
1892 | PROTOTYPE: $ |
3048 | PROTOTYPE: $ |
1893 | CODE: |
3049 | CODE: |
1894 | _exit (code); |
3050 | _exit (code); |
1895 | |
3051 | |
|
|
3052 | SV * |
|
|
3053 | clone (Coro::State coro) |
|
|
3054 | CODE: |
|
|
3055 | { |
|
|
3056 | #if CORO_CLONE |
|
|
3057 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3058 | MAGIC *mg; |
|
|
3059 | /* TODO: too much duplication */ |
|
|
3060 | ncoro->hv = newHV (); |
|
|
3061 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3062 | mg->mg_flags |= MGf_DUP; |
|
|
3063 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3064 | #else |
|
|
3065 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3066 | #endif |
|
|
3067 | } |
|
|
3068 | OUTPUT: |
|
|
3069 | RETVAL |
|
|
3070 | |
1896 | int |
3071 | int |
1897 | cctx_stacksize (int new_stacksize = 0) |
3072 | cctx_stacksize (int new_stacksize = 0) |
|
|
3073 | PROTOTYPE: ;$ |
1898 | CODE: |
3074 | CODE: |
1899 | RETVAL = cctx_stacksize; |
3075 | RETVAL = cctx_stacksize; |
1900 | if (new_stacksize) |
3076 | if (new_stacksize) |
1901 | { |
3077 | { |
1902 | cctx_stacksize = new_stacksize; |
3078 | cctx_stacksize = new_stacksize; |
… | |
… | |
1905 | OUTPUT: |
3081 | OUTPUT: |
1906 | RETVAL |
3082 | RETVAL |
1907 | |
3083 | |
1908 | int |
3084 | int |
1909 | cctx_max_idle (int max_idle = 0) |
3085 | cctx_max_idle (int max_idle = 0) |
|
|
3086 | PROTOTYPE: ;$ |
1910 | CODE: |
3087 | CODE: |
1911 | RETVAL = cctx_max_idle; |
3088 | RETVAL = cctx_max_idle; |
1912 | if (max_idle > 1) |
3089 | if (max_idle > 1) |
1913 | cctx_max_idle = max_idle; |
3090 | cctx_max_idle = max_idle; |
1914 | OUTPUT: |
3091 | OUTPUT: |
1915 | RETVAL |
3092 | RETVAL |
1916 | |
3093 | |
1917 | int |
3094 | int |
1918 | cctx_count () |
3095 | cctx_count () |
|
|
3096 | PROTOTYPE: |
1919 | CODE: |
3097 | CODE: |
1920 | RETVAL = cctx_count; |
3098 | RETVAL = cctx_count; |
1921 | OUTPUT: |
3099 | OUTPUT: |
1922 | RETVAL |
3100 | RETVAL |
1923 | |
3101 | |
1924 | int |
3102 | int |
1925 | cctx_idle () |
3103 | cctx_idle () |
|
|
3104 | PROTOTYPE: |
1926 | CODE: |
3105 | CODE: |
1927 | RETVAL = cctx_idle; |
3106 | RETVAL = cctx_idle; |
1928 | OUTPUT: |
3107 | OUTPUT: |
1929 | RETVAL |
3108 | RETVAL |
1930 | |
3109 | |
1931 | void |
3110 | void |
1932 | list () |
3111 | list () |
|
|
3112 | PROTOTYPE: |
1933 | PPCODE: |
3113 | PPCODE: |
1934 | { |
3114 | { |
1935 | struct coro *coro; |
3115 | struct coro *coro; |
1936 | for (coro = coro_first; coro; coro = coro->next) |
3116 | for (coro = coro_first; coro; coro = coro->next) |
1937 | if (coro->hv) |
3117 | if (coro->hv) |
… | |
… | |
1944 | eval = 1 |
3124 | eval = 1 |
1945 | CODE: |
3125 | CODE: |
1946 | { |
3126 | { |
1947 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3127 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1948 | { |
3128 | { |
1949 | struct coro temp; |
3129 | struct coro *current = SvSTATE_current; |
1950 | |
3130 | |
1951 | if (!(coro->flags & CF_RUNNING)) |
3131 | if (current != coro) |
1952 | { |
3132 | { |
1953 | PUTBACK; |
3133 | PUTBACK; |
1954 | save_perl (aTHX_ &temp); |
3134 | save_perl (aTHX_ current); |
1955 | load_perl (aTHX_ coro); |
3135 | load_perl (aTHX_ coro); |
|
|
3136 | SPAGAIN; |
1956 | } |
3137 | } |
1957 | |
3138 | |
1958 | { |
|
|
1959 | dSP; |
|
|
1960 | ENTER; |
|
|
1961 | SAVETMPS; |
|
|
1962 | PUTBACK; |
|
|
1963 | PUSHSTACK; |
3139 | PUSHSTACK; |
|
|
3140 | |
1964 | PUSHMARK (SP); |
3141 | PUSHMARK (SP); |
|
|
3142 | PUTBACK; |
1965 | |
3143 | |
1966 | if (ix) |
3144 | if (ix) |
1967 | eval_sv (coderef, 0); |
3145 | eval_sv (coderef, 0); |
1968 | else |
3146 | else |
1969 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3147 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1970 | |
3148 | |
1971 | POPSTACK; |
3149 | POPSTACK; |
1972 | SPAGAIN; |
3150 | SPAGAIN; |
1973 | FREETMPS; |
|
|
1974 | LEAVE; |
|
|
1975 | PUTBACK; |
|
|
1976 | } |
|
|
1977 | |
3151 | |
1978 | if (!(coro->flags & CF_RUNNING)) |
3152 | if (current != coro) |
1979 | { |
3153 | { |
|
|
3154 | PUTBACK; |
1980 | save_perl (aTHX_ coro); |
3155 | save_perl (aTHX_ coro); |
1981 | load_perl (aTHX_ &temp); |
3156 | load_perl (aTHX_ current); |
1982 | SPAGAIN; |
3157 | SPAGAIN; |
1983 | } |
3158 | } |
1984 | } |
3159 | } |
1985 | } |
3160 | } |
1986 | |
3161 | |
… | |
… | |
1990 | ALIAS: |
3165 | ALIAS: |
1991 | is_ready = CF_READY |
3166 | is_ready = CF_READY |
1992 | is_running = CF_RUNNING |
3167 | is_running = CF_RUNNING |
1993 | is_new = CF_NEW |
3168 | is_new = CF_NEW |
1994 | is_destroyed = CF_DESTROYED |
3169 | is_destroyed = CF_DESTROYED |
|
|
3170 | is_suspended = CF_SUSPENDED |
1995 | CODE: |
3171 | CODE: |
1996 | RETVAL = boolSV (coro->flags & ix); |
3172 | RETVAL = boolSV (coro->flags & ix); |
1997 | OUTPUT: |
3173 | OUTPUT: |
1998 | RETVAL |
3174 | RETVAL |
1999 | |
3175 | |
2000 | void |
3176 | void |
|
|
3177 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
3178 | PROTOTYPE: $;$ |
|
|
3179 | CODE: |
|
|
3180 | { |
|
|
3181 | struct coro *current = SvSTATE_current; |
|
|
3182 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
3183 | SvREFCNT_dec (*throwp); |
|
|
3184 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3185 | } |
|
|
3186 | |
|
|
3187 | void |
2001 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3188 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3189 | PROTOTYPE: $;$ |
|
|
3190 | C_ARGS: aTHX_ coro, flags |
2002 | |
3191 | |
2003 | SV * |
3192 | SV * |
2004 | has_cctx (Coro::State coro) |
3193 | has_cctx (Coro::State coro) |
2005 | PROTOTYPE: $ |
3194 | PROTOTYPE: $ |
2006 | CODE: |
3195 | CODE: |
2007 | RETVAL = boolSV (!!coro->cctx); |
3196 | /* maybe manage the running flag differently */ |
|
|
3197 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2008 | OUTPUT: |
3198 | OUTPUT: |
2009 | RETVAL |
3199 | RETVAL |
2010 | |
3200 | |
2011 | int |
3201 | int |
2012 | is_traced (Coro::State coro) |
3202 | is_traced (Coro::State coro) |
… | |
… | |
2030 | OUTPUT: |
3220 | OUTPUT: |
2031 | RETVAL |
3221 | RETVAL |
2032 | |
3222 | |
2033 | void |
3223 | void |
2034 | force_cctx () |
3224 | force_cctx () |
|
|
3225 | PROTOTYPE: |
2035 | CODE: |
3226 | CODE: |
2036 | struct coro *coro = SvSTATE (coro_current); |
|
|
2037 | coro->cctx->idle_sp = 0; |
3227 | cctx_current->idle_sp = 0; |
2038 | |
3228 | |
2039 | void |
3229 | void |
2040 | swap_defsv (Coro::State self) |
3230 | swap_defsv (Coro::State self) |
2041 | PROTOTYPE: $ |
3231 | PROTOTYPE: $ |
2042 | ALIAS: |
3232 | ALIAS: |
2043 | swap_defav = 1 |
3233 | swap_defav = 1 |
2044 | CODE: |
3234 | CODE: |
2045 | if (!self->slot) |
3235 | if (!self->slot) |
2046 | croak ("cannot swap state with coroutine that has no saved state"); |
3236 | croak ("cannot swap state with coroutine that has no saved state,"); |
2047 | else |
3237 | else |
2048 | { |
3238 | { |
2049 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3239 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2050 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3240 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2051 | |
3241 | |
2052 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3242 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2053 | } |
3243 | } |
2054 | |
3244 | |
|
|
3245 | void |
|
|
3246 | cancel (Coro::State self) |
|
|
3247 | CODE: |
|
|
3248 | coro_state_destroy (aTHX_ self); |
|
|
3249 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3250 | |
|
|
3251 | |
2055 | MODULE = Coro::State PACKAGE = Coro |
3252 | MODULE = Coro::State PACKAGE = Coro |
2056 | |
3253 | |
2057 | BOOT: |
3254 | BOOT: |
2058 | { |
3255 | { |
2059 | int i; |
|
|
2060 | |
|
|
2061 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2062 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3256 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2063 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3257 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2064 | |
3258 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3259 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2065 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3260 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2066 | SvREADONLY_on (coro_current); |
3261 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3262 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3263 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3264 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
3265 | |
|
|
3266 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3267 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3268 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3269 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2067 | |
3270 | |
2068 | coro_stash = gv_stashpv ("Coro", TRUE); |
3271 | coro_stash = gv_stashpv ("Coro", TRUE); |
2069 | |
3272 | |
2070 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3273 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2071 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3274 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2072 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3275 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2073 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3276 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2074 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3277 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2075 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3278 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2076 | |
3279 | |
2077 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2078 | coro_ready[i] = newAV (); |
|
|
2079 | |
|
|
2080 | { |
3280 | { |
2081 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3281 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2082 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2083 | |
3282 | |
2084 | coroapi.schedule = api_schedule; |
3283 | coroapi.schedule = api_schedule; |
|
|
3284 | coroapi.schedule_to = api_schedule_to; |
2085 | coroapi.cede = api_cede; |
3285 | coroapi.cede = api_cede; |
2086 | coroapi.cede_notself = api_cede_notself; |
3286 | coroapi.cede_notself = api_cede_notself; |
2087 | coroapi.ready = api_ready; |
3287 | coroapi.ready = api_ready; |
2088 | coroapi.is_ready = api_is_ready; |
3288 | coroapi.is_ready = api_is_ready; |
2089 | coroapi.nready = &coro_nready; |
3289 | coroapi.nready = coro_nready; |
2090 | coroapi.current = coro_current; |
3290 | coroapi.current = coro_current; |
2091 | |
3291 | |
2092 | GCoroAPI = &coroapi; |
3292 | /*GCoroAPI = &coroapi;*/ |
2093 | sv_setiv (sv, (IV)&coroapi); |
3293 | sv_setiv (sv, (IV)&coroapi); |
2094 | SvREADONLY_on (sv); |
3294 | SvREADONLY_on (sv); |
2095 | } |
3295 | } |
2096 | } |
3296 | } |
|
|
3297 | |
|
|
3298 | void |
|
|
3299 | terminate (...) |
|
|
3300 | CODE: |
|
|
3301 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3302 | |
|
|
3303 | void |
|
|
3304 | schedule (...) |
|
|
3305 | CODE: |
|
|
3306 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3307 | |
|
|
3308 | void |
|
|
3309 | schedule_to (...) |
|
|
3310 | CODE: |
|
|
3311 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3312 | |
|
|
3313 | void |
|
|
3314 | cede_to (...) |
|
|
3315 | CODE: |
|
|
3316 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3317 | |
|
|
3318 | void |
|
|
3319 | cede (...) |
|
|
3320 | CODE: |
|
|
3321 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3322 | |
|
|
3323 | void |
|
|
3324 | cede_notself (...) |
|
|
3325 | CODE: |
|
|
3326 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2097 | |
3327 | |
2098 | void |
3328 | void |
2099 | _set_current (SV *current) |
3329 | _set_current (SV *current) |
2100 | PROTOTYPE: $ |
3330 | PROTOTYPE: $ |
2101 | CODE: |
3331 | CODE: |
… | |
… | |
2104 | |
3334 | |
2105 | void |
3335 | void |
2106 | _set_readyhook (SV *hook) |
3336 | _set_readyhook (SV *hook) |
2107 | PROTOTYPE: $ |
3337 | PROTOTYPE: $ |
2108 | CODE: |
3338 | CODE: |
2109 | LOCK; |
|
|
2110 | SvREFCNT_dec (coro_readyhook); |
3339 | SvREFCNT_dec (coro_readyhook); |
2111 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3340 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2112 | UNLOCK; |
|
|
2113 | |
3341 | |
2114 | int |
3342 | int |
2115 | prio (Coro::State coro, int newprio = 0) |
3343 | prio (Coro::State coro, int newprio = 0) |
|
|
3344 | PROTOTYPE: $;$ |
2116 | ALIAS: |
3345 | ALIAS: |
2117 | nice = 1 |
3346 | nice = 1 |
2118 | CODE: |
3347 | CODE: |
2119 | { |
3348 | { |
2120 | RETVAL = coro->prio; |
3349 | RETVAL = coro->prio; |
… | |
… | |
2135 | |
3364 | |
2136 | SV * |
3365 | SV * |
2137 | ready (SV *self) |
3366 | ready (SV *self) |
2138 | PROTOTYPE: $ |
3367 | PROTOTYPE: $ |
2139 | CODE: |
3368 | CODE: |
2140 | RETVAL = boolSV (api_ready (self)); |
3369 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2141 | OUTPUT: |
3370 | OUTPUT: |
2142 | RETVAL |
3371 | RETVAL |
2143 | |
3372 | |
2144 | int |
3373 | int |
2145 | nready (...) |
3374 | nready (...) |
… | |
… | |
2148 | RETVAL = coro_nready; |
3377 | RETVAL = coro_nready; |
2149 | OUTPUT: |
3378 | OUTPUT: |
2150 | RETVAL |
3379 | RETVAL |
2151 | |
3380 | |
2152 | void |
3381 | void |
2153 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3382 | suspend (Coro::State self) |
2154 | PROTOTYPE: $;$ |
3383 | PROTOTYPE: $ |
2155 | CODE: |
3384 | CODE: |
2156 | SvREFCNT_dec (self->throw); |
3385 | self->flags |= CF_SUSPENDED; |
2157 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2158 | |
3386 | |
2159 | # for async_pool speedup |
|
|
2160 | void |
3387 | void |
2161 | _pool_1 (SV *cb) |
3388 | resume (Coro::State self) |
|
|
3389 | PROTOTYPE: $ |
2162 | CODE: |
3390 | CODE: |
2163 | { |
3391 | self->flags &= ~CF_SUSPENDED; |
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 | |
3392 | |
2171 | if (!invoke) |
3393 | void |
|
|
3394 | _pool_handler (...) |
|
|
3395 | CODE: |
|
|
3396 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3397 | |
|
|
3398 | void |
|
|
3399 | async_pool (SV *cv, ...) |
|
|
3400 | PROTOTYPE: &@ |
|
|
3401 | PPCODE: |
|
|
3402 | { |
|
|
3403 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3404 | AV *av = newAV (); |
|
|
3405 | SV *cb = ST (0); |
|
|
3406 | int i; |
|
|
3407 | |
|
|
3408 | av_extend (av, items - 2); |
|
|
3409 | for (i = 1; i < items; ++i) |
|
|
3410 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3411 | |
|
|
3412 | if ((SV *)hv == &PL_sv_undef) |
2172 | { |
3413 | { |
2173 | SV *old = PL_diehook; |
3414 | PUSHMARK (SP); |
2174 | PL_diehook = 0; |
3415 | EXTEND (SP, 2); |
2175 | SvREFCNT_dec (old); |
3416 | PUSHs (sv_Coro); |
2176 | croak ("\3async_pool terminate\2\n"); |
3417 | PUSHs ((SV *)cv_pool_handler); |
|
|
3418 | PUTBACK; |
|
|
3419 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3420 | SPAGAIN; |
|
|
3421 | |
|
|
3422 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
2177 | } |
3423 | } |
2178 | |
3424 | |
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 | { |
3425 | { |
2192 | av_fill (defav, len - 1); |
3426 | struct coro *coro = SvSTATE_hv (hv); |
2193 | for (i = 0; i < len; ++i) |
3427 | |
2194 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
3428 | assert (!coro->invoke_cb); |
|
|
3429 | assert (!coro->invoke_av); |
|
|
3430 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3431 | coro->invoke_av = av; |
2195 | } |
3432 | } |
2196 | |
3433 | |
|
|
3434 | api_ready (aTHX_ (SV *)hv); |
|
|
3435 | |
|
|
3436 | if (GIMME_V != G_VOID) |
|
|
3437 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3438 | else |
2197 | SvREFCNT_dec (invoke); |
3439 | SvREFCNT_dec (hv); |
2198 | } |
3440 | } |
2199 | |
3441 | |
2200 | void |
3442 | SV * |
2201 | _pool_2 (SV *cb) |
3443 | rouse_cb () |
|
|
3444 | PROTOTYPE: |
2202 | CODE: |
3445 | CODE: |
2203 | { |
3446 | RETVAL = coro_new_rouse_cb (aTHX); |
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: |
3447 | OUTPUT: |
2276 | RETVAL |
3448 | RETVAL |
2277 | |
3449 | |
2278 | #endif |
|
|
2279 | |
|
|
2280 | |
|
|
2281 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2282 | |
|
|
2283 | void |
3450 | void |
2284 | _get_state (SV *self) |
3451 | rouse_wait (...) |
|
|
3452 | PROTOTYPE: ;$ |
2285 | PPCODE: |
3453 | PPCODE: |
2286 | { |
3454 | 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 | |
|
|
2295 | data->errorno = errno; |
|
|
2296 | data->laststype = PL_laststype; |
|
|
2297 | data->laststatval = PL_laststatval; |
|
|
2298 | data->statcache = PL_statcache; |
|
|
2299 | |
|
|
2300 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2301 | |
|
|
2302 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2303 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2304 | |
|
|
2305 | av_push (av, data_sv); |
|
|
2306 | |
|
|
2307 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2308 | |
|
|
2309 | api_ready (self); |
|
|
2310 | } |
|
|
2311 | |
3455 | |
2312 | void |
3456 | void |
2313 | _set_state (SV *state) |
3457 | on_enter (SV *block) |
|
|
3458 | ALIAS: |
|
|
3459 | on_leave = 1 |
2314 | PROTOTYPE: $ |
3460 | PROTOTYPE: & |
|
|
3461 | CODE: |
|
|
3462 | { |
|
|
3463 | struct coro *coro = SvSTATE_current; |
|
|
3464 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
|
|
3465 | |
|
|
3466 | block = (SV *)coro_sv_2cv (aTHX_ block); |
|
|
3467 | |
|
|
3468 | if (!*avp) |
|
|
3469 | *avp = newAV (); |
|
|
3470 | |
|
|
3471 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
3472 | |
|
|
3473 | if (!ix) |
|
|
3474 | on_enterleave_call (aTHX_ block); |
|
|
3475 | |
|
|
3476 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3477 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
3478 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3479 | } |
|
|
3480 | |
|
|
3481 | |
|
|
3482 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3483 | |
|
|
3484 | BOOT: |
|
|
3485 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3486 | |
|
|
3487 | |
|
|
3488 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3489 | |
|
|
3490 | SV * |
|
|
3491 | new (SV *klass, SV *count = 0) |
|
|
3492 | CODE: |
|
|
3493 | { |
|
|
3494 | int semcnt = 1; |
|
|
3495 | |
|
|
3496 | if (count) |
|
|
3497 | { |
|
|
3498 | SvGETMAGIC (count); |
|
|
3499 | |
|
|
3500 | if (SvOK (count)) |
|
|
3501 | semcnt = SvIV (count); |
|
|
3502 | } |
|
|
3503 | |
|
|
3504 | RETVAL = sv_bless ( |
|
|
3505 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3506 | GvSTASH (CvGV (cv)) |
|
|
3507 | ); |
|
|
3508 | } |
|
|
3509 | OUTPUT: |
|
|
3510 | RETVAL |
|
|
3511 | |
|
|
3512 | # helper for Coro::Channel and others |
|
|
3513 | SV * |
|
|
3514 | _alloc (int count) |
|
|
3515 | CODE: |
|
|
3516 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3517 | OUTPUT: |
|
|
3518 | RETVAL |
|
|
3519 | |
|
|
3520 | SV * |
|
|
3521 | count (SV *self) |
|
|
3522 | CODE: |
|
|
3523 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3524 | OUTPUT: |
|
|
3525 | RETVAL |
|
|
3526 | |
|
|
3527 | void |
|
|
3528 | up (SV *self, int adjust = 1) |
|
|
3529 | ALIAS: |
|
|
3530 | adjust = 1 |
|
|
3531 | CODE: |
|
|
3532 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3533 | |
|
|
3534 | void |
|
|
3535 | down (...) |
|
|
3536 | CODE: |
|
|
3537 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3538 | |
|
|
3539 | void |
|
|
3540 | wait (...) |
|
|
3541 | CODE: |
|
|
3542 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3543 | |
|
|
3544 | void |
|
|
3545 | try (SV *self) |
|
|
3546 | PPCODE: |
|
|
3547 | { |
|
|
3548 | AV *av = (AV *)SvRV (self); |
|
|
3549 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3550 | IV count = SvIVX (count_sv); |
|
|
3551 | |
|
|
3552 | if (count > 0) |
|
|
3553 | { |
|
|
3554 | --count; |
|
|
3555 | SvIVX (count_sv) = count; |
|
|
3556 | XSRETURN_YES; |
|
|
3557 | } |
|
|
3558 | else |
|
|
3559 | XSRETURN_NO; |
|
|
3560 | } |
|
|
3561 | |
|
|
3562 | void |
|
|
3563 | waiters (SV *self) |
|
|
3564 | PPCODE: |
|
|
3565 | { |
|
|
3566 | AV *av = (AV *)SvRV (self); |
|
|
3567 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3568 | |
|
|
3569 | if (GIMME_V == G_SCALAR) |
|
|
3570 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3571 | else |
|
|
3572 | { |
|
|
3573 | int i; |
|
|
3574 | EXTEND (SP, wcount); |
|
|
3575 | for (i = 1; i <= wcount; ++i) |
|
|
3576 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3577 | } |
|
|
3578 | } |
|
|
3579 | |
|
|
3580 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
3581 | |
|
|
3582 | void |
|
|
3583 | _may_delete (SV *sem, int count, int extra_refs) |
2315 | PPCODE: |
3584 | PPCODE: |
2316 | { |
3585 | { |
2317 | AV *av = (AV *)SvRV (state); |
3586 | AV *av = (AV *)SvRV (sem); |
2318 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2319 | int i; |
|
|
2320 | |
3587 | |
2321 | errno = data->errorno; |
3588 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
2322 | PL_laststype = data->laststype; |
3589 | && AvFILLp (av) == 0 /* no waiters, just count */ |
2323 | PL_laststatval = data->laststatval; |
3590 | && SvIV (AvARRAY (av)[0]) == count) |
2324 | PL_statcache = data->statcache; |
3591 | XSRETURN_YES; |
2325 | |
3592 | |
|
|
3593 | XSRETURN_NO; |
|
|
3594 | } |
|
|
3595 | |
|
|
3596 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3597 | |
|
|
3598 | SV * |
|
|
3599 | new (SV *klass) |
|
|
3600 | CODE: |
|
|
3601 | RETVAL = sv_bless ( |
|
|
3602 | coro_waitarray_new (aTHX_ 0), |
|
|
3603 | GvSTASH (CvGV (cv)) |
|
|
3604 | ); |
|
|
3605 | OUTPUT: |
|
|
3606 | RETVAL |
|
|
3607 | |
|
|
3608 | void |
|
|
3609 | wait (...) |
|
|
3610 | CODE: |
|
|
3611 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3612 | |
|
|
3613 | void |
|
|
3614 | broadcast (SV *self) |
|
|
3615 | CODE: |
|
|
3616 | { |
|
|
3617 | AV *av = (AV *)SvRV (self); |
|
|
3618 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3619 | } |
|
|
3620 | |
|
|
3621 | void |
|
|
3622 | send (SV *self) |
|
|
3623 | CODE: |
|
|
3624 | { |
|
|
3625 | AV *av = (AV *)SvRV (self); |
|
|
3626 | |
2326 | EXTEND (SP, AvFILLp (av)); |
3627 | if (AvFILLp (av)) |
2327 | for (i = 0; i < AvFILLp (av); ++i) |
3628 | coro_signal_wake (aTHX_ av, 1); |
2328 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
3629 | else |
|
|
3630 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2329 | } |
3631 | } |
|
|
3632 | |
|
|
3633 | IV |
|
|
3634 | awaited (SV *self) |
|
|
3635 | CODE: |
|
|
3636 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3637 | OUTPUT: |
|
|
3638 | RETVAL |
2330 | |
3639 | |
2331 | |
3640 | |
2332 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3641 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2333 | |
3642 | |
2334 | BOOT: |
3643 | BOOT: |
2335 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3644 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2336 | |
3645 | |
2337 | SV * |
3646 | void |
2338 | _schedule (...) |
3647 | _schedule (...) |
2339 | PROTOTYPE: @ |
|
|
2340 | CODE: |
3648 | CODE: |
2341 | { |
3649 | { |
2342 | static int incede; |
3650 | static int incede; |
2343 | |
3651 | |
2344 | api_cede_notself (); |
3652 | api_cede_notself (aTHX); |
2345 | |
3653 | |
2346 | ++incede; |
3654 | ++incede; |
2347 | while (coro_nready >= incede && api_cede ()) |
3655 | while (coro_nready >= incede && api_cede (aTHX)) |
2348 | ; |
3656 | ; |
2349 | |
3657 | |
2350 | sv_setsv (sv_activity, &PL_sv_undef); |
3658 | sv_setsv (sv_activity, &PL_sv_undef); |
2351 | if (coro_nready >= incede) |
3659 | if (coro_nready >= incede) |
2352 | { |
3660 | { |
2353 | PUSHMARK (SP); |
3661 | PUSHMARK (SP); |
2354 | PUTBACK; |
3662 | PUTBACK; |
2355 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3663 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2356 | SPAGAIN; |
|
|
2357 | } |
3664 | } |
2358 | |
3665 | |
2359 | --incede; |
3666 | --incede; |
2360 | } |
3667 | } |
2361 | |
3668 | |
2362 | |
3669 | |
2363 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3670 | MODULE = Coro::State PACKAGE = Coro::AIO |
2364 | |
3671 | |
2365 | BOOT: |
3672 | void |
2366 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3673 | _register (char *target, char *proto, SV *req) |
|
|
3674 | CODE: |
|
|
3675 | { |
|
|
3676 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3677 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3678 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3679 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3680 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3681 | } |
|
|
3682 | |