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12 | #include "perl.h" |
12 | #include "perl.h" |
13 | #include "XSUB.h" |
13 | #include "XSUB.h" |
14 | #include "perliol.h" |
14 | #include "perliol.h" |
15 | |
15 | |
16 | #include "schmorp.h" |
16 | #include "schmorp.h" |
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17 | #include "ecb.h" |
17 | |
18 | |
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19 | #include <stddef.h> |
18 | #include <stdio.h> |
20 | #include <stdio.h> |
19 | #include <errno.h> |
21 | #include <errno.h> |
20 | #include <assert.h> |
22 | #include <assert.h> |
21 | |
23 | |
22 | #ifndef SVs_PADSTALE |
24 | #ifndef SVs_PADSTALE |
23 | # define SVs_PADSTALE 0 |
25 | # define SVs_PADSTALE 0 |
24 | #endif |
26 | #endif |
25 | |
27 | |
26 | #ifdef WIN32 |
28 | #if defined(_WIN32) |
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29 | # undef HAS_GETTIMEOFDAY |
27 | # undef setjmp |
30 | # undef setjmp |
28 | # undef longjmp |
31 | # undef longjmp |
29 | # undef _exit |
32 | # undef _exit |
30 | # define setjmp _setjmp /* deep magic */ |
33 | # define setjmp _setjmp /* deep magic */ |
31 | #else |
34 | #else |
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85 | # define STACKLEVEL ((void *)&stacklevel) |
88 | # define STACKLEVEL ((void *)&stacklevel) |
86 | #endif |
89 | #endif |
87 | |
90 | |
88 | #define IN_DESTRUCT PL_dirty |
91 | #define IN_DESTRUCT PL_dirty |
89 | |
92 | |
90 | #if __GNUC__ >= 3 |
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91 | # define attribute(x) __attribute__(x) |
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92 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
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93 | # define INLINE static inline |
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94 | #else |
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95 | # define attribute(x) |
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96 | # define expect(expr,value) (expr) |
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97 | # define INLINE static |
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98 | #endif |
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99 | |
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100 | #define expect_false(expr) expect ((expr) != 0, 0) |
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101 | #define expect_true(expr) expect ((expr) != 0, 1) |
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102 | |
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103 | #define NOINLINE attribute ((noinline)) |
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104 | |
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105 | #include "CoroAPI.h" |
93 | #include "CoroAPI.h" |
106 | #define GCoroAPI (&coroapi) /* very sneaky */ |
94 | #define GCoroAPI (&coroapi) /* very sneaky */ |
107 | |
95 | |
108 | #ifdef USE_ITHREADS |
96 | #ifdef USE_ITHREADS |
109 | # if CORO_PTHREAD |
97 | # if CORO_PTHREAD |
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125 | static void (*u2time)(pTHX_ UV ret[2]); |
113 | static void (*u2time)(pTHX_ UV ret[2]); |
126 | |
114 | |
127 | /* we hijack an hopefully unused CV flag for our purposes */ |
115 | /* we hijack an hopefully unused CV flag for our purposes */ |
128 | #define CVf_SLF 0x4000 |
116 | #define CVf_SLF 0x4000 |
129 | static OP *pp_slf (pTHX); |
117 | static OP *pp_slf (pTHX); |
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118 | static void slf_destroy (pTHX_ struct coro *coro); |
130 | |
119 | |
131 | static U32 cctx_gen; |
120 | static U32 cctx_gen; |
132 | static size_t cctx_stacksize = CORO_STACKSIZE; |
121 | static size_t cctx_stacksize = CORO_STACKSIZE; |
133 | static struct CoroAPI coroapi; |
122 | static struct CoroAPI coroapi; |
134 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
123 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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164 | static char times_valid; |
153 | static char times_valid; |
165 | |
154 | |
166 | static struct coro_cctx *cctx_first; |
155 | static struct coro_cctx *cctx_first; |
167 | static int cctx_count, cctx_idle; |
156 | static int cctx_count, cctx_idle; |
168 | |
157 | |
169 | enum { |
158 | enum |
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159 | { |
170 | CC_MAPPED = 0x01, |
160 | CC_MAPPED = 0x01, |
171 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
161 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
172 | CC_TRACE = 0x04, |
162 | CC_TRACE = 0x04, |
173 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
163 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
174 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
164 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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195 | int valgrind_id; |
185 | int valgrind_id; |
196 | #endif |
186 | #endif |
197 | unsigned char flags; |
187 | unsigned char flags; |
198 | } coro_cctx; |
188 | } coro_cctx; |
199 | |
189 | |
200 | coro_cctx *cctx_current; /* the currently running cctx */ |
190 | static coro_cctx *cctx_current; /* the currently running cctx */ |
201 | |
191 | |
202 | /*****************************************************************************/ |
192 | /*****************************************************************************/ |
203 | |
193 | |
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194 | static MGVTBL coro_state_vtbl; |
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195 | |
204 | enum { |
196 | enum |
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197 | { |
205 | CF_RUNNING = 0x0001, /* coroutine is running */ |
198 | CF_RUNNING = 0x0001, /* coroutine is running */ |
206 | CF_READY = 0x0002, /* coroutine is ready */ |
199 | CF_READY = 0x0002, /* coroutine is ready */ |
207 | CF_NEW = 0x0004, /* has never been switched to */ |
200 | CF_NEW = 0x0004, /* has never been switched to */ |
208 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
201 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
209 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
202 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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203 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
210 | }; |
204 | }; |
211 | |
205 | |
212 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
206 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
213 | typedef struct |
207 | typedef struct |
214 | { |
208 | { |
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220 | #define VAR(name,type) type name; |
214 | #define VAR(name,type) type name; |
221 | # include "state.h" |
215 | # include "state.h" |
222 | #undef VAR |
216 | #undef VAR |
223 | } perl_slots; |
217 | } perl_slots; |
224 | |
218 | |
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219 | // how many context stack entries do we need for perl_slots |
225 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
220 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
226 | |
221 | |
227 | /* this is a structure representing a perl-level coroutine */ |
222 | /* this is a structure representing a perl-level coroutine */ |
228 | struct coro { |
223 | struct coro |
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224 | { |
229 | /* the C coroutine allocated to this perl coroutine, if any */ |
225 | /* the C coroutine allocated to this perl coroutine, if any */ |
230 | coro_cctx *cctx; |
226 | coro_cctx *cctx; |
231 | |
227 | |
232 | /* ready queue */ |
228 | /* ready queue */ |
233 | struct coro *next_ready; |
229 | struct coro *next_ready; |
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235 | /* state data */ |
231 | /* state data */ |
236 | struct CoroSLF slf_frame; /* saved slf frame */ |
232 | struct CoroSLF slf_frame; /* saved slf frame */ |
237 | AV *mainstack; |
233 | AV *mainstack; |
238 | perl_slots *slot; /* basically the saved sp */ |
234 | perl_slots *slot; /* basically the saved sp */ |
239 | |
235 | |
240 | CV *startcv; /* the CV to execute */ |
236 | CV *startcv; /* the CV to execute */ |
241 | AV *args; /* data associated with this coroutine (initial args) */ |
237 | AV *args; /* data associated with this coroutine (initial args) */ |
242 | int refcnt; /* coroutines are refcounted, yes */ |
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243 | int flags; /* CF_ flags */ |
238 | int flags; /* CF_ flags */ |
244 | HV *hv; /* the perl hash associated with this coro, if any */ |
239 | HV *hv; /* the perl hash associated with this coro, if any */ |
245 | void (*on_destroy)(pTHX_ struct coro *coro); |
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246 | |
240 | |
247 | /* statistics */ |
241 | /* statistics */ |
248 | int usecount; /* number of transfers to this coro */ |
242 | int usecount; /* number of transfers to this coro */ |
249 | |
243 | |
250 | /* coro process data */ |
244 | /* coro process data */ |
251 | int prio; |
245 | int prio; |
252 | SV *except; /* exception to be thrown */ |
246 | SV *except; /* exception to be thrown */ |
253 | SV *rouse_cb; |
247 | SV *rouse_cb; /* last rouse callback */ |
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248 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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249 | AV *status; /* the exit status list */ |
254 | |
250 | |
255 | /* async_pool */ |
251 | /* async_pool */ |
256 | SV *saved_deffh; |
252 | SV *saved_deffh; |
257 | SV *invoke_cb; |
253 | SV *invoke_cb; |
258 | AV *invoke_av; |
254 | AV *invoke_av; |
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274 | typedef struct coro *Coro__State; |
270 | typedef struct coro *Coro__State; |
275 | typedef struct coro *Coro__State_or_hashref; |
271 | typedef struct coro *Coro__State_or_hashref; |
276 | |
272 | |
277 | /* the following variables are effectively part of the perl context */ |
273 | /* the following variables are effectively part of the perl context */ |
278 | /* and get copied between struct coro and these variables */ |
274 | /* and get copied between struct coro and these variables */ |
279 | /* the mainr easonw e don't support windows process emulation */ |
275 | /* the main reason we don't support windows process emulation */ |
280 | static struct CoroSLF slf_frame; /* the current slf frame */ |
276 | static struct CoroSLF slf_frame; /* the current slf frame */ |
281 | |
277 | |
282 | /** Coro ********************************************************************/ |
278 | /** Coro ********************************************************************/ |
283 | |
279 | |
284 | #define CORO_PRIO_MAX 3 |
280 | #define CORO_PRIO_MAX 3 |
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290 | |
286 | |
291 | /* for Coro.pm */ |
287 | /* for Coro.pm */ |
292 | static SV *coro_current; |
288 | static SV *coro_current; |
293 | static SV *coro_readyhook; |
289 | static SV *coro_readyhook; |
294 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
290 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
295 | static CV *cv_coro_run, *cv_coro_terminate; |
291 | static CV *cv_coro_run; |
296 | static struct coro *coro_first; |
292 | static struct coro *coro_first; |
297 | #define coro_nready coroapi.nready |
293 | #define coro_nready coroapi.nready |
298 | |
294 | |
299 | /** Coro::Select ************************************************************/ |
295 | /** Coro::Select ************************************************************/ |
300 | |
296 | |
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314 | PL_op->op_flags |= OPf_STACKED; |
310 | PL_op->op_flags |= OPf_STACKED; |
315 | PL_op->op_private = 0; |
311 | PL_op->op_private = 0; |
316 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
312 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
317 | } |
313 | } |
318 | |
314 | |
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315 | /** time stuff **************************************************************/ |
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316 | |
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317 | #ifdef HAS_GETTIMEOFDAY |
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318 | |
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319 | ECB_INLINE void |
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320 | coro_u2time (pTHX_ UV ret[2]) |
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321 | { |
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322 | struct timeval tv; |
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323 | gettimeofday (&tv, 0); |
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324 | |
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325 | ret [0] = tv.tv_sec; |
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326 | ret [1] = tv.tv_usec; |
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327 | } |
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328 | |
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329 | ECB_INLINE double |
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330 | coro_nvtime () |
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331 | { |
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332 | struct timeval tv; |
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333 | gettimeofday (&tv, 0); |
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334 | |
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335 | return tv.tv_sec + tv.tv_usec * 1e-6; |
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336 | } |
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337 | |
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338 | ECB_INLINE void |
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339 | time_init (pTHX) |
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340 | { |
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341 | nvtime = coro_nvtime; |
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342 | u2time = coro_u2time; |
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343 | } |
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344 | |
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345 | #else |
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346 | |
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347 | ECB_INLINE void |
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348 | time_init (pTHX) |
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349 | { |
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350 | SV **svp; |
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351 | |
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352 | require_pv ("Time/HiRes.pm"); |
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353 | |
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354 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
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355 | |
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356 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
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357 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
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358 | |
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359 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
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360 | |
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361 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
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362 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
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363 | } |
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364 | |
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365 | #endif |
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366 | |
319 | /** lowlevel stuff **********************************************************/ |
367 | /** lowlevel stuff **********************************************************/ |
320 | |
368 | |
321 | static SV * |
369 | static SV * ecb_noinline |
322 | coro_get_sv (pTHX_ const char *name, int create) |
370 | coro_get_sv (pTHX_ const char *name, int create) |
323 | { |
371 | { |
324 | #if PERL_VERSION_ATLEAST (5,10,0) |
372 | #if PERL_VERSION_ATLEAST (5,10,0) |
325 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
373 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
326 | get_sv (name, create); |
374 | get_sv (name, create); |
327 | #endif |
375 | #endif |
328 | return get_sv (name, create); |
376 | return get_sv (name, create); |
329 | } |
377 | } |
330 | |
378 | |
331 | static AV * |
379 | static AV * ecb_noinline |
332 | coro_get_av (pTHX_ const char *name, int create) |
380 | coro_get_av (pTHX_ const char *name, int create) |
333 | { |
381 | { |
334 | #if PERL_VERSION_ATLEAST (5,10,0) |
382 | #if PERL_VERSION_ATLEAST (5,10,0) |
335 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
383 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
336 | get_av (name, create); |
384 | get_av (name, create); |
337 | #endif |
385 | #endif |
338 | return get_av (name, create); |
386 | return get_av (name, create); |
339 | } |
387 | } |
340 | |
388 | |
341 | static HV * |
389 | static HV * ecb_noinline |
342 | coro_get_hv (pTHX_ const char *name, int create) |
390 | coro_get_hv (pTHX_ const char *name, int create) |
343 | { |
391 | { |
344 | #if PERL_VERSION_ATLEAST (5,10,0) |
392 | #if PERL_VERSION_ATLEAST (5,10,0) |
345 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
393 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
346 | get_hv (name, create); |
394 | get_hv (name, create); |
347 | #endif |
395 | #endif |
348 | return get_hv (name, create); |
396 | return get_hv (name, create); |
349 | } |
397 | } |
350 | |
398 | |
351 | INLINE void |
399 | ECB_INLINE void |
352 | coro_times_update () |
400 | coro_times_update () |
353 | { |
401 | { |
354 | #ifdef coro_clock_gettime |
402 | #ifdef coro_clock_gettime |
355 | struct timespec ts; |
403 | struct timespec ts; |
356 | |
404 | |
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369 | time_real [0] = tv [0]; |
417 | time_real [0] = tv [0]; |
370 | time_real [1] = tv [1] * 1000; |
418 | time_real [1] = tv [1] * 1000; |
371 | #endif |
419 | #endif |
372 | } |
420 | } |
373 | |
421 | |
374 | INLINE void |
422 | ECB_INLINE void |
375 | coro_times_add (struct coro *c) |
423 | coro_times_add (struct coro *c) |
376 | { |
424 | { |
377 | c->t_real [1] += time_real [1]; |
425 | c->t_real [1] += time_real [1]; |
378 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
426 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
379 | c->t_real [0] += time_real [0]; |
427 | c->t_real [0] += time_real [0]; |
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381 | c->t_cpu [1] += time_cpu [1]; |
429 | c->t_cpu [1] += time_cpu [1]; |
382 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
430 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
383 | c->t_cpu [0] += time_cpu [0]; |
431 | c->t_cpu [0] += time_cpu [0]; |
384 | } |
432 | } |
385 | |
433 | |
386 | INLINE void |
434 | ECB_INLINE void |
387 | coro_times_sub (struct coro *c) |
435 | coro_times_sub (struct coro *c) |
388 | { |
436 | { |
389 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
437 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
390 | c->t_real [1] -= time_real [1]; |
438 | c->t_real [1] -= time_real [1]; |
391 | c->t_real [0] -= time_real [0]; |
439 | c->t_real [0] -= time_real [0]; |
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399 | /* magic glue */ |
447 | /* magic glue */ |
400 | |
448 | |
401 | #define CORO_MAGIC_type_cv 26 |
449 | #define CORO_MAGIC_type_cv 26 |
402 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
450 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
403 | |
451 | |
404 | #define CORO_MAGIC_NN(sv, type) \ |
452 | #define CORO_MAGIC_NN(sv, type) \ |
405 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
453 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
406 | ? SvMAGIC (sv) \ |
454 | ? SvMAGIC (sv) \ |
407 | : mg_find (sv, type)) |
455 | : mg_find (sv, type)) |
408 | |
456 | |
409 | #define CORO_MAGIC(sv, type) \ |
457 | #define CORO_MAGIC(sv, type) \ |
410 | (expect_true (SvMAGIC (sv)) \ |
458 | (ecb_expect_true (SvMAGIC (sv)) \ |
411 | ? CORO_MAGIC_NN (sv, type) \ |
459 | ? CORO_MAGIC_NN (sv, type) \ |
412 | : 0) |
460 | : 0) |
413 | |
461 | |
414 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
462 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
415 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
463 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
416 | |
464 | |
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465 | ECB_INLINE MAGIC * |
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466 | SvSTATEhv_p (pTHX_ SV *coro) |
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467 | { |
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468 | MAGIC *mg; |
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469 | |
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470 | if (ecb_expect_true ( |
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471 | SvTYPE (coro) == SVt_PVHV |
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472 | && (mg = CORO_MAGIC_state (coro)) |
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473 | && mg->mg_virtual == &coro_state_vtbl |
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474 | )) |
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475 | return mg; |
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476 | |
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477 | return 0; |
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478 | } |
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479 | |
417 | INLINE struct coro * |
480 | ECB_INLINE struct coro * |
418 | SvSTATE_ (pTHX_ SV *coro) |
481 | SvSTATE_ (pTHX_ SV *coro) |
419 | { |
482 | { |
420 | HV *stash; |
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421 | MAGIC *mg; |
483 | MAGIC *mg; |
422 | |
484 | |
423 | if (SvROK (coro)) |
485 | if (SvROK (coro)) |
424 | coro = SvRV (coro); |
486 | coro = SvRV (coro); |
425 | |
487 | |
426 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
488 | mg = SvSTATEhv_p (aTHX_ coro); |
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489 | if (!mg) |
427 | croak ("Coro::State object required"); |
490 | croak ("Coro::State object required"); |
428 | |
491 | |
429 | stash = SvSTASH (coro); |
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430 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
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431 | { |
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432 | /* very slow, but rare, check */ |
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433 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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434 | croak ("Coro::State object required"); |
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435 | } |
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436 | |
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437 | mg = CORO_MAGIC_state (coro); |
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438 | return (struct coro *)mg->mg_ptr; |
492 | return (struct coro *)mg->mg_ptr; |
439 | } |
493 | } |
440 | |
494 | |
441 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
495 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
442 | |
496 | |
… | |
… | |
445 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
499 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
446 | |
500 | |
447 | /*****************************************************************************/ |
501 | /*****************************************************************************/ |
448 | /* padlist management and caching */ |
502 | /* padlist management and caching */ |
449 | |
503 | |
450 | static AV * |
504 | ECB_INLINE AV * |
451 | coro_derive_padlist (pTHX_ CV *cv) |
505 | coro_derive_padlist (pTHX_ CV *cv) |
452 | { |
506 | { |
453 | AV *padlist = CvPADLIST (cv); |
507 | AV *padlist = CvPADLIST (cv); |
454 | AV *newpadlist, *newpad; |
508 | AV *newpadlist, *newpad; |
455 | |
509 | |
… | |
… | |
467 | av_store (newpadlist, 1, (SV *)newpad); |
521 | av_store (newpadlist, 1, (SV *)newpad); |
468 | |
522 | |
469 | return newpadlist; |
523 | return newpadlist; |
470 | } |
524 | } |
471 | |
525 | |
472 | static void |
526 | ECB_INLINE void |
473 | free_padlist (pTHX_ AV *padlist) |
527 | free_padlist (pTHX_ AV *padlist) |
474 | { |
528 | { |
475 | /* may be during global destruction */ |
529 | /* may be during global destruction */ |
476 | if (!IN_DESTRUCT) |
530 | if (!IN_DESTRUCT) |
477 | { |
531 | { |
… | |
… | |
520 | 0, 0, 0, 0, |
574 | 0, 0, 0, 0, |
521 | coro_cv_free |
575 | coro_cv_free |
522 | }; |
576 | }; |
523 | |
577 | |
524 | /* the next two functions merely cache the padlists */ |
578 | /* the next two functions merely cache the padlists */ |
525 | static void |
579 | ECB_INLINE void |
526 | get_padlist (pTHX_ CV *cv) |
580 | get_padlist (pTHX_ CV *cv) |
527 | { |
581 | { |
528 | MAGIC *mg = CORO_MAGIC_cv (cv); |
582 | MAGIC *mg = CORO_MAGIC_cv (cv); |
529 | AV *av; |
583 | AV *av; |
530 | |
584 | |
531 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
585 | if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
532 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
586 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
533 | else |
587 | else |
534 | { |
588 | { |
535 | #if CORO_PREFER_PERL_FUNCTIONS |
589 | #if CORO_PREFER_PERL_FUNCTIONS |
536 | /* this is probably cleaner? but also slower! */ |
590 | /* this is probably cleaner? but also slower! */ |
… | |
… | |
543 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
597 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
544 | #endif |
598 | #endif |
545 | } |
599 | } |
546 | } |
600 | } |
547 | |
601 | |
548 | static void |
602 | ECB_INLINE void |
549 | put_padlist (pTHX_ CV *cv) |
603 | put_padlist (pTHX_ CV *cv) |
550 | { |
604 | { |
551 | MAGIC *mg = CORO_MAGIC_cv (cv); |
605 | MAGIC *mg = CORO_MAGIC_cv (cv); |
552 | AV *av; |
606 | AV *av; |
553 | |
607 | |
554 | if (expect_false (!mg)) |
608 | if (ecb_expect_false (!mg)) |
555 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
609 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
556 | |
610 | |
557 | av = (AV *)mg->mg_obj; |
611 | av = (AV *)mg->mg_obj; |
558 | |
612 | |
559 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
613 | if (ecb_expect_false (AvFILLp (av) >= AvMAX (av))) |
560 | av_extend (av, AvFILLp (av) + 1); |
614 | av_extend (av, AvFILLp (av) + 1); |
561 | |
615 | |
562 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
616 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
563 | } |
617 | } |
564 | |
618 | |
… | |
… | |
586 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
640 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
587 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
641 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
588 | |
642 | |
589 | #if PERL_VERSION_ATLEAST (5,10,0) |
643 | #if PERL_VERSION_ATLEAST (5,10,0) |
590 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
644 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
591 | * is much faster, so no quarrels here. alternatively, we could |
645 | * much faster, so no quarrels here. alternatively, we could |
592 | * sv_upgrade to avoid this. |
646 | * sv_upgrade to avoid this. |
593 | */ |
647 | */ |
594 | { |
648 | { |
595 | /* swap sv_u */ |
649 | /* swap sv_u */ |
596 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
650 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
… | |
… | |
609 | } |
663 | } |
610 | #endif |
664 | #endif |
611 | } |
665 | } |
612 | } |
666 | } |
613 | |
667 | |
614 | #define SWAP_SVS(coro) \ |
668 | #define SWAP_SVS(coro) \ |
615 | if (expect_false ((coro)->swap_sv)) \ |
669 | if (ecb_expect_false ((coro)->swap_sv)) \ |
616 | swap_svs (aTHX_ (coro)) |
670 | swap_svs (aTHX_ (coro)) |
617 | |
671 | |
618 | static void |
672 | static void |
619 | on_enterleave_call (pTHX_ SV *cb); |
673 | on_enterleave_call (pTHX_ SV *cb); |
620 | |
674 | |
… | |
… | |
640 | dSP; |
694 | dSP; |
641 | |
695 | |
642 | CV *cv; |
696 | CV *cv; |
643 | |
697 | |
644 | /* now do the ugly restore mess */ |
698 | /* now do the ugly restore mess */ |
645 | while (expect_true (cv = (CV *)POPs)) |
699 | while (ecb_expect_true (cv = (CV *)POPs)) |
646 | { |
700 | { |
647 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
701 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
648 | CvDEPTH (cv) = PTR2IV (POPs); |
702 | CvDEPTH (cv) = PTR2IV (POPs); |
649 | CvPADLIST (cv) = (AV *)POPs; |
703 | CvPADLIST (cv) = (AV *)POPs; |
650 | } |
704 | } |
… | |
… | |
653 | } |
707 | } |
654 | |
708 | |
655 | slf_frame = c->slf_frame; |
709 | slf_frame = c->slf_frame; |
656 | CORO_THROW = c->except; |
710 | CORO_THROW = c->except; |
657 | |
711 | |
658 | if (expect_false (enable_times)) |
712 | if (ecb_expect_false (enable_times)) |
659 | { |
713 | { |
660 | if (expect_false (!times_valid)) |
714 | if (ecb_expect_false (!times_valid)) |
661 | coro_times_update (); |
715 | coro_times_update (); |
662 | |
716 | |
663 | coro_times_sub (c); |
717 | coro_times_sub (c); |
664 | } |
718 | } |
665 | |
719 | |
666 | if (expect_false (c->on_enter)) |
720 | if (ecb_expect_false (c->on_enter)) |
667 | { |
721 | { |
668 | int i; |
722 | int i; |
669 | |
723 | |
670 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
724 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
671 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
725 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
… | |
… | |
677 | static void |
731 | static void |
678 | save_perl (pTHX_ Coro__State c) |
732 | save_perl (pTHX_ Coro__State c) |
679 | { |
733 | { |
680 | SWAP_SVS (c); |
734 | SWAP_SVS (c); |
681 | |
735 | |
682 | if (expect_false (c->on_leave)) |
736 | if (ecb_expect_false (c->on_leave)) |
683 | { |
737 | { |
684 | int i; |
738 | int i; |
685 | |
739 | |
686 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
740 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
687 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
741 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
688 | } |
742 | } |
689 | |
743 | |
690 | times_valid = 0; |
744 | times_valid = 0; |
691 | |
745 | |
692 | if (expect_false (enable_times)) |
746 | if (ecb_expect_false (enable_times)) |
693 | { |
747 | { |
694 | coro_times_update (); times_valid = 1; |
748 | coro_times_update (); times_valid = 1; |
695 | coro_times_add (c); |
749 | coro_times_add (c); |
696 | } |
750 | } |
697 | |
751 | |
… | |
… | |
711 | |
765 | |
712 | XPUSHs (Nullsv); |
766 | XPUSHs (Nullsv); |
713 | /* this loop was inspired by pp_caller */ |
767 | /* this loop was inspired by pp_caller */ |
714 | for (;;) |
768 | for (;;) |
715 | { |
769 | { |
716 | while (expect_true (cxix >= 0)) |
770 | while (ecb_expect_true (cxix >= 0)) |
717 | { |
771 | { |
718 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
772 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
719 | |
773 | |
720 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
774 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
721 | { |
775 | { |
722 | CV *cv = cx->blk_sub.cv; |
776 | CV *cv = cx->blk_sub.cv; |
723 | |
777 | |
724 | if (expect_true (CvDEPTH (cv))) |
778 | if (ecb_expect_true (CvDEPTH (cv))) |
725 | { |
779 | { |
726 | EXTEND (SP, 3); |
780 | EXTEND (SP, 3); |
727 | PUSHs ((SV *)CvPADLIST (cv)); |
781 | PUSHs ((SV *)CvPADLIST (cv)); |
728 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
782 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
729 | PUSHs ((SV *)cv); |
783 | PUSHs ((SV *)cv); |
… | |
… | |
732 | get_padlist (aTHX_ cv); |
786 | get_padlist (aTHX_ cv); |
733 | } |
787 | } |
734 | } |
788 | } |
735 | } |
789 | } |
736 | |
790 | |
737 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
791 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
738 | break; |
792 | break; |
739 | |
793 | |
740 | top_si = top_si->si_prev; |
794 | top_si = top_si->si_prev; |
741 | ccstk = top_si->si_cxstack; |
795 | ccstk = top_si->si_cxstack; |
742 | cxix = top_si->si_cxix; |
796 | cxix = top_si->si_cxix; |
… | |
… | |
744 | |
798 | |
745 | PUTBACK; |
799 | PUTBACK; |
746 | } |
800 | } |
747 | |
801 | |
748 | /* allocate some space on the context stack for our purposes */ |
802 | /* allocate some space on the context stack for our purposes */ |
749 | /* we manually unroll here, as usually 2 slots is enough */ |
803 | if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max)) |
750 | if (SLOT_COUNT >= 1) CXINC; |
|
|
751 | if (SLOT_COUNT >= 2) CXINC; |
|
|
752 | if (SLOT_COUNT >= 3) CXINC; |
|
|
753 | { |
804 | { |
754 | unsigned int i; |
805 | unsigned int i; |
|
|
806 | |
755 | for (i = 3; i < SLOT_COUNT; ++i) |
807 | for (i = 0; i < SLOT_COUNT; ++i) |
756 | CXINC; |
808 | CXINC; |
757 | } |
809 | |
758 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
810 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
811 | } |
759 | |
812 | |
760 | c->mainstack = PL_mainstack; |
813 | c->mainstack = PL_mainstack; |
761 | |
814 | |
762 | { |
815 | { |
763 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
816 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
… | |
… | |
784 | # define coro_init_stacks(thx) init_stacks () |
837 | # define coro_init_stacks(thx) init_stacks () |
785 | #else |
838 | #else |
786 | static void |
839 | static void |
787 | coro_init_stacks (pTHX) |
840 | coro_init_stacks (pTHX) |
788 | { |
841 | { |
789 | PL_curstackinfo = new_stackinfo(32, 8); |
842 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
790 | PL_curstackinfo->si_type = PERLSI_MAIN; |
843 | PL_curstackinfo->si_type = PERLSI_MAIN; |
791 | PL_curstack = PL_curstackinfo->si_stack; |
844 | PL_curstack = PL_curstackinfo->si_stack; |
792 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
845 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
793 | |
846 | |
794 | PL_stack_base = AvARRAY(PL_curstack); |
847 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
901 | #endif |
954 | #endif |
902 | |
955 | |
903 | /* |
956 | /* |
904 | * This overrides the default magic get method of %SIG elements. |
957 | * This overrides the default magic get method of %SIG elements. |
905 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
958 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
906 | * and instead of trying to save and restore the hash elements, we just provide |
959 | * and instead of trying to save and restore the hash elements (extremely slow), |
907 | * readback here. |
960 | * we just provide our own readback here. |
908 | */ |
961 | */ |
909 | static int |
962 | static int ecb_cold |
910 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
963 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
911 | { |
964 | { |
912 | const char *s = MgPV_nolen_const (mg); |
965 | const char *s = MgPV_nolen_const (mg); |
913 | |
966 | |
914 | if (*s == '_') |
967 | if (*s == '_') |
… | |
… | |
926 | } |
979 | } |
927 | |
980 | |
928 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
981 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
929 | } |
982 | } |
930 | |
983 | |
931 | static int |
984 | static int ecb_cold |
932 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
985 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
933 | { |
986 | { |
934 | const char *s = MgPV_nolen_const (mg); |
987 | const char *s = MgPV_nolen_const (mg); |
935 | |
988 | |
936 | if (*s == '_') |
989 | if (*s == '_') |
… | |
… | |
950 | } |
1003 | } |
951 | |
1004 | |
952 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1005 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
953 | } |
1006 | } |
954 | |
1007 | |
955 | static int |
1008 | static int ecb_cold |
956 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1009 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
957 | { |
1010 | { |
958 | const char *s = MgPV_nolen_const (mg); |
1011 | const char *s = MgPV_nolen_const (mg); |
959 | |
1012 | |
960 | if (*s == '_') |
1013 | if (*s == '_') |
… | |
… | |
995 | return 1; |
1048 | return 1; |
996 | } |
1049 | } |
997 | |
1050 | |
998 | static UNOP init_perl_op; |
1051 | static UNOP init_perl_op; |
999 | |
1052 | |
1000 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
1053 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
1001 | init_perl (pTHX_ struct coro *coro) |
1054 | init_perl (pTHX_ struct coro *coro) |
1002 | { |
1055 | { |
1003 | /* |
1056 | /* |
1004 | * emulate part of the perl startup here. |
1057 | * emulate part of the perl startup here. |
1005 | */ |
1058 | */ |
… | |
… | |
1020 | PL_parser = 0; |
1073 | PL_parser = 0; |
1021 | #endif |
1074 | #endif |
1022 | PL_hints = 0; |
1075 | PL_hints = 0; |
1023 | |
1076 | |
1024 | /* recreate the die/warn hooks */ |
1077 | /* recreate the die/warn hooks */ |
1025 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1078 | PL_diehook = SvREFCNT_inc (rv_diehook); |
1026 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1079 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
1027 | |
1080 | |
1028 | GvSV (PL_defgv) = newSV (0); |
1081 | GvSV (PL_defgv) = newSV (0); |
1029 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1082 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1030 | GvSV (PL_errgv) = newSV (0); |
1083 | GvSV (PL_errgv) = newSV (0); |
1031 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1084 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
… | |
… | |
1052 | /* this newly created coroutine might be run on an existing cctx which most |
1105 | /* this newly created coroutine might be run on an existing cctx which most |
1053 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1106 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1054 | */ |
1107 | */ |
1055 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1108 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1056 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
1109 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1110 | slf_frame.destroy = 0; |
1057 | |
1111 | |
1058 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
1112 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
1059 | init_perl_op.op_next = PL_op; |
1113 | init_perl_op.op_next = PL_op; |
1060 | init_perl_op.op_type = OP_ENTERSUB; |
1114 | init_perl_op.op_type = OP_ENTERSUB; |
1061 | init_perl_op.op_ppaddr = pp_slf; |
1115 | init_perl_op.op_ppaddr = pp_slf; |
… | |
… | |
1066 | /* copy throw, in case it was set before init_perl */ |
1120 | /* copy throw, in case it was set before init_perl */ |
1067 | CORO_THROW = coro->except; |
1121 | CORO_THROW = coro->except; |
1068 | |
1122 | |
1069 | SWAP_SVS (coro); |
1123 | SWAP_SVS (coro); |
1070 | |
1124 | |
1071 | if (expect_false (enable_times)) |
1125 | if (ecb_expect_false (enable_times)) |
1072 | { |
1126 | { |
1073 | coro_times_update (); |
1127 | coro_times_update (); |
1074 | coro_times_sub (coro); |
1128 | coro_times_sub (coro); |
1075 | } |
1129 | } |
1076 | } |
1130 | } |
… | |
… | |
1100 | destroy_perl (pTHX_ struct coro *coro) |
1154 | destroy_perl (pTHX_ struct coro *coro) |
1101 | { |
1155 | { |
1102 | SV *svf [9]; |
1156 | SV *svf [9]; |
1103 | |
1157 | |
1104 | { |
1158 | { |
|
|
1159 | SV *old_current = SvRV (coro_current); |
1105 | struct coro *current = SvSTATE_current; |
1160 | struct coro *current = SvSTATE (old_current); |
1106 | |
1161 | |
1107 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
1162 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
1108 | |
1163 | |
1109 | save_perl (aTHX_ current); |
1164 | save_perl (aTHX_ current); |
|
|
1165 | |
|
|
1166 | /* this will cause transfer_check to croak on block*/ |
|
|
1167 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1168 | |
1110 | load_perl (aTHX_ coro); |
1169 | load_perl (aTHX_ coro); |
1111 | |
1170 | |
1112 | coro_unwind_stacks (aTHX); |
1171 | coro_unwind_stacks (aTHX); |
1113 | coro_destruct_stacks (aTHX); |
|
|
1114 | |
1172 | |
1115 | /* restore swapped sv's */ |
1173 | /* restore swapped sv's */ |
1116 | SWAP_SVS (coro); |
1174 | SWAP_SVS (coro); |
|
|
1175 | |
|
|
1176 | coro_destruct_stacks (aTHX); |
1117 | |
1177 | |
1118 | // now save some sv's to be free'd later |
1178 | // now save some sv's to be free'd later |
1119 | svf [0] = GvSV (PL_defgv); |
1179 | svf [0] = GvSV (PL_defgv); |
1120 | svf [1] = (SV *)GvAV (PL_defgv); |
1180 | svf [1] = (SV *)GvAV (PL_defgv); |
1121 | svf [2] = GvSV (PL_errgv); |
1181 | svf [2] = GvSV (PL_errgv); |
… | |
… | |
1125 | svf [6] = (SV *)GvHV (PL_hintgv); |
1185 | svf [6] = (SV *)GvHV (PL_hintgv); |
1126 | svf [7] = PL_diehook; |
1186 | svf [7] = PL_diehook; |
1127 | svf [8] = PL_warnhook; |
1187 | svf [8] = PL_warnhook; |
1128 | assert (9 == sizeof (svf) / sizeof (*svf)); |
1188 | assert (9 == sizeof (svf) / sizeof (*svf)); |
1129 | |
1189 | |
|
|
1190 | SvRV_set (coro_current, old_current); |
|
|
1191 | |
1130 | load_perl (aTHX_ current); |
1192 | load_perl (aTHX_ current); |
1131 | } |
1193 | } |
1132 | |
1194 | |
1133 | { |
1195 | { |
1134 | unsigned int i; |
1196 | unsigned int i; |
… | |
… | |
1141 | SvREFCNT_dec (coro->invoke_cb); |
1203 | SvREFCNT_dec (coro->invoke_cb); |
1142 | SvREFCNT_dec (coro->invoke_av); |
1204 | SvREFCNT_dec (coro->invoke_av); |
1143 | } |
1205 | } |
1144 | } |
1206 | } |
1145 | |
1207 | |
1146 | INLINE void |
1208 | ECB_INLINE void |
1147 | free_coro_mortal (pTHX) |
1209 | free_coro_mortal (pTHX) |
1148 | { |
1210 | { |
1149 | if (expect_true (coro_mortal)) |
1211 | if (ecb_expect_true (coro_mortal)) |
1150 | { |
1212 | { |
1151 | SvREFCNT_dec (coro_mortal); |
1213 | SvREFCNT_dec ((SV *)coro_mortal); |
1152 | coro_mortal = 0; |
1214 | coro_mortal = 0; |
1153 | } |
1215 | } |
1154 | } |
1216 | } |
1155 | |
1217 | |
1156 | static int |
1218 | static int |
… | |
… | |
1289 | |
1351 | |
1290 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
1352 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
1291 | } |
1353 | } |
1292 | |
1354 | |
1293 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1355 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1294 | static void NOINLINE |
1356 | static void ecb_noinline |
1295 | cctx_prepare (pTHX) |
1357 | cctx_prepare (pTHX) |
1296 | { |
1358 | { |
1297 | PL_top_env = &PL_start_env; |
1359 | PL_top_env = &PL_start_env; |
1298 | |
1360 | |
1299 | if (cctx_current->flags & CC_TRACE) |
1361 | if (cctx_current->flags & CC_TRACE) |
… | |
… | |
1310 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1372 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1311 | slf_frame.check = slf_check_set_stacklevel; |
1373 | slf_frame.check = slf_check_set_stacklevel; |
1312 | } |
1374 | } |
1313 | |
1375 | |
1314 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1376 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1315 | INLINE void |
1377 | ECB_INLINE void |
1316 | transfer_tail (pTHX) |
1378 | transfer_tail (pTHX) |
1317 | { |
1379 | { |
1318 | free_coro_mortal (aTHX); |
1380 | free_coro_mortal (aTHX); |
1319 | } |
1381 | } |
1320 | |
1382 | |
… | |
… | |
1443 | cctx_destroy (coro_cctx *cctx) |
1505 | cctx_destroy (coro_cctx *cctx) |
1444 | { |
1506 | { |
1445 | if (!cctx) |
1507 | if (!cctx) |
1446 | return; |
1508 | return; |
1447 | |
1509 | |
1448 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
1510 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
1449 | |
1511 | |
1450 | --cctx_count; |
1512 | --cctx_count; |
1451 | coro_destroy (&cctx->cctx); |
1513 | coro_destroy (&cctx->cctx); |
1452 | |
1514 | |
1453 | /* coro_transfer creates new, empty cctx's */ |
1515 | /* coro_transfer creates new, empty cctx's */ |
… | |
… | |
1472 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1534 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1473 | |
1535 | |
1474 | static coro_cctx * |
1536 | static coro_cctx * |
1475 | cctx_get (pTHX) |
1537 | cctx_get (pTHX) |
1476 | { |
1538 | { |
1477 | while (expect_true (cctx_first)) |
1539 | while (ecb_expect_true (cctx_first)) |
1478 | { |
1540 | { |
1479 | coro_cctx *cctx = cctx_first; |
1541 | coro_cctx *cctx = cctx_first; |
1480 | cctx_first = cctx->next; |
1542 | cctx_first = cctx->next; |
1481 | --cctx_idle; |
1543 | --cctx_idle; |
1482 | |
1544 | |
1483 | if (expect_true (!CCTX_EXPIRED (cctx))) |
1545 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
1484 | return cctx; |
1546 | return cctx; |
1485 | |
1547 | |
1486 | cctx_destroy (cctx); |
1548 | cctx_destroy (cctx); |
1487 | } |
1549 | } |
1488 | |
1550 | |
… | |
… | |
1493 | cctx_put (coro_cctx *cctx) |
1555 | cctx_put (coro_cctx *cctx) |
1494 | { |
1556 | { |
1495 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1557 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1496 | |
1558 | |
1497 | /* free another cctx if overlimit */ |
1559 | /* free another cctx if overlimit */ |
1498 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1560 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
1499 | { |
1561 | { |
1500 | coro_cctx *first = cctx_first; |
1562 | coro_cctx *first = cctx_first; |
1501 | cctx_first = first->next; |
1563 | cctx_first = first->next; |
1502 | --cctx_idle; |
1564 | --cctx_idle; |
1503 | |
1565 | |
… | |
… | |
1514 | static void |
1576 | static void |
1515 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1577 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1516 | { |
1578 | { |
1517 | /* TODO: throwing up here is considered harmful */ |
1579 | /* TODO: throwing up here is considered harmful */ |
1518 | |
1580 | |
1519 | if (expect_true (prev != next)) |
1581 | if (ecb_expect_true (prev != next)) |
1520 | { |
1582 | { |
1521 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1583 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1522 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1584 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1523 | |
1585 | |
1524 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1586 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1525 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1587 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1526 | |
1588 | |
1527 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1589 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1528 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1590 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
1529 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1591 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1530 | #endif |
1592 | #endif |
1531 | } |
1593 | } |
1532 | } |
1594 | } |
1533 | |
1595 | |
1534 | /* always use the TRANSFER macro */ |
1596 | /* always use the TRANSFER macro */ |
1535 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1597 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
1536 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1598 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1537 | { |
1599 | { |
1538 | dSTACKLEVEL; |
1600 | dSTACKLEVEL; |
1539 | |
1601 | |
1540 | /* sometimes transfer is only called to set idle_sp */ |
1602 | /* sometimes transfer is only called to set idle_sp */ |
1541 | if (expect_false (!prev)) |
1603 | if (ecb_expect_false (!prev)) |
1542 | { |
1604 | { |
1543 | cctx_current->idle_sp = STACKLEVEL; |
1605 | cctx_current->idle_sp = STACKLEVEL; |
1544 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1606 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1545 | } |
1607 | } |
1546 | else if (expect_true (prev != next)) |
1608 | else if (ecb_expect_true (prev != next)) |
1547 | { |
1609 | { |
1548 | coro_cctx *cctx_prev; |
1610 | coro_cctx *cctx_prev; |
1549 | |
1611 | |
1550 | if (expect_false (prev->flags & CF_NEW)) |
1612 | if (ecb_expect_false (prev->flags & CF_NEW)) |
1551 | { |
1613 | { |
1552 | /* create a new empty/source context */ |
1614 | /* create a new empty/source context */ |
1553 | prev->flags &= ~CF_NEW; |
1615 | prev->flags &= ~CF_NEW; |
1554 | prev->flags |= CF_RUNNING; |
1616 | prev->flags |= CF_RUNNING; |
1555 | } |
1617 | } |
… | |
… | |
1558 | next->flags |= CF_RUNNING; |
1620 | next->flags |= CF_RUNNING; |
1559 | |
1621 | |
1560 | /* first get rid of the old state */ |
1622 | /* first get rid of the old state */ |
1561 | save_perl (aTHX_ prev); |
1623 | save_perl (aTHX_ prev); |
1562 | |
1624 | |
1563 | if (expect_false (next->flags & CF_NEW)) |
1625 | if (ecb_expect_false (next->flags & CF_NEW)) |
1564 | { |
1626 | { |
1565 | /* need to start coroutine */ |
1627 | /* need to start coroutine */ |
1566 | next->flags &= ~CF_NEW; |
1628 | next->flags &= ~CF_NEW; |
1567 | /* setup coroutine call */ |
1629 | /* setup coroutine call */ |
1568 | init_perl (aTHX_ next); |
1630 | init_perl (aTHX_ next); |
1569 | } |
1631 | } |
1570 | else |
1632 | else |
1571 | load_perl (aTHX_ next); |
1633 | load_perl (aTHX_ next); |
1572 | |
1634 | |
1573 | /* possibly untie and reuse the cctx */ |
1635 | /* possibly untie and reuse the cctx */ |
1574 | if (expect_true ( |
1636 | if (ecb_expect_true ( |
1575 | cctx_current->idle_sp == STACKLEVEL |
1637 | cctx_current->idle_sp == STACKLEVEL |
1576 | && !(cctx_current->flags & CC_TRACE) |
1638 | && !(cctx_current->flags & CC_TRACE) |
1577 | && !force_cctx |
1639 | && !force_cctx |
1578 | )) |
1640 | )) |
1579 | { |
1641 | { |
1580 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1642 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1581 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1643 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1582 | |
1644 | |
1583 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1645 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1584 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1646 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1585 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1647 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
1586 | if (expect_true (!next->cctx)) |
1648 | if (ecb_expect_true (!next->cctx)) |
1587 | next->cctx = cctx_get (aTHX); |
1649 | next->cctx = cctx_get (aTHX); |
1588 | |
1650 | |
1589 | cctx_put (cctx_current); |
1651 | cctx_put (cctx_current); |
1590 | } |
1652 | } |
1591 | else |
1653 | else |
1592 | prev->cctx = cctx_current; |
1654 | prev->cctx = cctx_current; |
1593 | |
1655 | |
1594 | ++next->usecount; |
1656 | ++next->usecount; |
1595 | |
1657 | |
1596 | cctx_prev = cctx_current; |
1658 | cctx_prev = cctx_current; |
1597 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1659 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1598 | |
1660 | |
1599 | next->cctx = 0; |
1661 | next->cctx = 0; |
1600 | |
1662 | |
1601 | if (expect_false (cctx_prev != cctx_current)) |
1663 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1602 | { |
1664 | { |
1603 | cctx_prev->top_env = PL_top_env; |
1665 | cctx_prev->top_env = PL_top_env; |
1604 | PL_top_env = cctx_current->top_env; |
1666 | PL_top_env = cctx_current->top_env; |
1605 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1667 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1606 | } |
1668 | } |
… | |
… | |
1612 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1674 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1613 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1675 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1614 | |
1676 | |
1615 | /** high level stuff ********************************************************/ |
1677 | /** high level stuff ********************************************************/ |
1616 | |
1678 | |
|
|
1679 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1680 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1617 | static int |
1681 | static void |
|
|
1682 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1683 | |
|
|
1684 | static void |
1618 | coro_state_destroy (pTHX_ struct coro *coro) |
1685 | coro_state_destroy (pTHX_ struct coro *coro) |
1619 | { |
1686 | { |
1620 | if (coro->flags & CF_DESTROYED) |
1687 | if (coro->flags & CF_ZOMBIE) |
1621 | return 0; |
1688 | return; |
1622 | |
1689 | |
1623 | if (coro->on_destroy && !PL_dirty) |
|
|
1624 | coro->on_destroy (aTHX_ coro); |
1690 | slf_destroy (aTHX_ coro); |
1625 | |
1691 | |
1626 | coro->flags |= CF_DESTROYED; |
1692 | coro->flags |= CF_ZOMBIE; |
1627 | |
1693 | |
1628 | if (coro->flags & CF_READY) |
1694 | if (coro->flags & CF_READY) |
1629 | { |
1695 | { |
1630 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1696 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1631 | /* alternative: look through all ready queues and remove the coro */ |
1697 | /* alternative: look through all ready queues and remove the coro */ |
1632 | --coro_nready; |
1698 | --coro_nready; |
1633 | } |
1699 | } |
1634 | else |
1700 | else |
1635 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1701 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
|
|
1702 | |
|
|
1703 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1704 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1705 | if (coro == coro_first) coro_first = coro->next; |
1636 | |
1706 | |
1637 | if (coro->mainstack |
1707 | if (coro->mainstack |
1638 | && coro->mainstack != main_mainstack |
1708 | && coro->mainstack != main_mainstack |
1639 | && coro->slot |
1709 | && coro->slot |
1640 | && !PL_dirty) |
1710 | && !PL_dirty) |
1641 | destroy_perl (aTHX_ coro); |
1711 | destroy_perl (aTHX_ coro); |
1642 | |
1712 | |
1643 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1644 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1645 | if (coro == coro_first) coro_first = coro->next; |
|
|
1646 | |
|
|
1647 | cctx_destroy (coro->cctx); |
1713 | cctx_destroy (coro->cctx); |
1648 | SvREFCNT_dec (coro->startcv); |
1714 | SvREFCNT_dec (coro->startcv); |
1649 | SvREFCNT_dec (coro->args); |
1715 | SvREFCNT_dec (coro->args); |
1650 | SvREFCNT_dec (coro->swap_sv); |
1716 | SvREFCNT_dec (coro->swap_sv); |
1651 | SvREFCNT_dec (CORO_THROW); |
1717 | SvREFCNT_dec (CORO_THROW); |
1652 | |
1718 | |
1653 | return 1; |
1719 | coro_call_on_destroy (aTHX_ coro); |
|
|
1720 | |
|
|
1721 | /* more destruction mayhem in coro_state_free */ |
1654 | } |
1722 | } |
1655 | |
1723 | |
1656 | static int |
1724 | static int |
1657 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1725 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1658 | { |
1726 | { |
1659 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1727 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1660 | mg->mg_ptr = 0; |
1728 | mg->mg_ptr = 0; |
1661 | |
1729 | |
1662 | coro->hv = 0; |
|
|
1663 | |
|
|
1664 | if (--coro->refcnt < 0) |
|
|
1665 | { |
|
|
1666 | coro_state_destroy (aTHX_ coro); |
1730 | coro_state_destroy (aTHX_ coro); |
|
|
1731 | SvREFCNT_dec (coro->on_destroy); |
|
|
1732 | SvREFCNT_dec (coro->status); |
|
|
1733 | |
1667 | Safefree (coro); |
1734 | Safefree (coro); |
1668 | } |
|
|
1669 | |
1735 | |
1670 | return 0; |
1736 | return 0; |
1671 | } |
1737 | } |
1672 | |
1738 | |
1673 | static int |
1739 | static int ecb_cold |
1674 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1740 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1675 | { |
1741 | { |
1676 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1742 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1677 | |
1743 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1678 | ++coro->refcnt; |
1744 | mg->mg_ptr = 0; |
|
|
1745 | mg->mg_virtual = 0; |
1679 | |
1746 | |
1680 | return 0; |
1747 | return 0; |
1681 | } |
1748 | } |
1682 | |
1749 | |
1683 | static MGVTBL coro_state_vtbl = { |
1750 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1708 | TRANSFER (ta, 1); |
1775 | TRANSFER (ta, 1); |
1709 | } |
1776 | } |
1710 | |
1777 | |
1711 | /** Coro ********************************************************************/ |
1778 | /** Coro ********************************************************************/ |
1712 | |
1779 | |
1713 | INLINE void |
1780 | ECB_INLINE void |
1714 | coro_enq (pTHX_ struct coro *coro) |
1781 | coro_enq (pTHX_ struct coro *coro) |
1715 | { |
1782 | { |
1716 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1783 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1717 | |
1784 | |
1718 | SvREFCNT_inc_NN (coro->hv); |
1785 | SvREFCNT_inc_NN (coro->hv); |
… | |
… | |
1720 | coro->next_ready = 0; |
1787 | coro->next_ready = 0; |
1721 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
1788 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
1722 | ready [1] = coro; |
1789 | ready [1] = coro; |
1723 | } |
1790 | } |
1724 | |
1791 | |
1725 | INLINE struct coro * |
1792 | ECB_INLINE struct coro * |
1726 | coro_deq (pTHX) |
1793 | coro_deq (pTHX) |
1727 | { |
1794 | { |
1728 | int prio; |
1795 | int prio; |
1729 | |
1796 | |
1730 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1797 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1783 | { |
1850 | { |
1784 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1851 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1785 | } |
1852 | } |
1786 | |
1853 | |
1787 | /* expects to own a reference to next->hv */ |
1854 | /* expects to own a reference to next->hv */ |
1788 | INLINE void |
1855 | ECB_INLINE void |
1789 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1856 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1790 | { |
1857 | { |
1791 | SV *prev_sv = SvRV (coro_current); |
1858 | SV *prev_sv = SvRV (coro_current); |
1792 | |
1859 | |
1793 | ta->prev = SvSTATE_hv (prev_sv); |
1860 | ta->prev = SvSTATE_hv (prev_sv); |
… | |
… | |
1806 | { |
1873 | { |
1807 | for (;;) |
1874 | for (;;) |
1808 | { |
1875 | { |
1809 | struct coro *next = coro_deq (aTHX); |
1876 | struct coro *next = coro_deq (aTHX); |
1810 | |
1877 | |
1811 | if (expect_true (next)) |
1878 | if (ecb_expect_true (next)) |
1812 | { |
1879 | { |
1813 | /* cannot transfer to destroyed coros, skip and look for next */ |
1880 | /* cannot transfer to destroyed coros, skip and look for next */ |
1814 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
1881 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
1815 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
1882 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
1816 | else |
1883 | else |
1817 | { |
1884 | { |
1818 | next->flags &= ~CF_READY; |
1885 | next->flags &= ~CF_READY; |
1819 | --coro_nready; |
1886 | --coro_nready; |
… | |
… | |
1852 | } |
1919 | } |
1853 | } |
1920 | } |
1854 | } |
1921 | } |
1855 | } |
1922 | } |
1856 | |
1923 | |
1857 | INLINE void |
1924 | ECB_INLINE void |
1858 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1925 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1859 | { |
1926 | { |
1860 | api_ready (aTHX_ coro_current); |
1927 | api_ready (aTHX_ coro_current); |
1861 | prepare_schedule (aTHX_ ta); |
1928 | prepare_schedule (aTHX_ ta); |
1862 | } |
1929 | } |
1863 | |
1930 | |
1864 | INLINE void |
1931 | ECB_INLINE void |
1865 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1932 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1866 | { |
1933 | { |
1867 | SV *prev = SvRV (coro_current); |
1934 | SV *prev = SvRV (coro_current); |
1868 | |
1935 | |
1869 | if (coro_nready) |
1936 | if (coro_nready) |
… | |
… | |
1899 | { |
1966 | { |
1900 | struct coro_transfer_args ta; |
1967 | struct coro_transfer_args ta; |
1901 | |
1968 | |
1902 | prepare_cede (aTHX_ &ta); |
1969 | prepare_cede (aTHX_ &ta); |
1903 | |
1970 | |
1904 | if (expect_true (ta.prev != ta.next)) |
1971 | if (ecb_expect_true (ta.prev != ta.next)) |
1905 | { |
1972 | { |
1906 | TRANSFER (ta, 1); |
1973 | TRANSFER (ta, 1); |
1907 | return 1; |
1974 | return 1; |
1908 | } |
1975 | } |
1909 | else |
1976 | else |
… | |
… | |
1952 | coro->slot->runops = RUNOPS_DEFAULT; |
2019 | coro->slot->runops = RUNOPS_DEFAULT; |
1953 | } |
2020 | } |
1954 | } |
2021 | } |
1955 | |
2022 | |
1956 | static void |
2023 | static void |
|
|
2024 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2025 | { |
|
|
2026 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2027 | { |
|
|
2028 | dSP; |
|
|
2029 | |
|
|
2030 | if (gimme_v == G_SCALAR) |
|
|
2031 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2032 | else |
|
|
2033 | { |
|
|
2034 | int i; |
|
|
2035 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2036 | |
|
|
2037 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2038 | PUSHs (AvARRAY (av)[i]); |
|
|
2039 | } |
|
|
2040 | |
|
|
2041 | PUTBACK; |
|
|
2042 | } |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | static void |
|
|
2046 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2047 | { |
|
|
2048 | if (!coro->on_destroy) |
|
|
2049 | coro->on_destroy = newAV (); |
|
|
2050 | |
|
|
2051 | av_push (coro->on_destroy, cb); |
|
|
2052 | } |
|
|
2053 | |
|
|
2054 | static void |
|
|
2055 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2056 | { |
|
|
2057 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2058 | } |
|
|
2059 | |
|
|
2060 | static int |
|
|
2061 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2062 | { |
|
|
2063 | struct coro *coro = (struct coro *)frame->data; |
|
|
2064 | |
|
|
2065 | if (!coro->status) |
|
|
2066 | return 1; |
|
|
2067 | |
|
|
2068 | frame->destroy = 0; |
|
|
2069 | |
|
|
2070 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2071 | |
|
|
2072 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2073 | |
|
|
2074 | return 0; |
|
|
2075 | } |
|
|
2076 | |
|
|
2077 | static void |
|
|
2078 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2079 | { |
|
|
2080 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2081 | |
|
|
2082 | if (items > 1) |
|
|
2083 | croak ("join called with too many arguments"); |
|
|
2084 | |
|
|
2085 | if (coro->status) |
|
|
2086 | frame->prepare = prepare_nop; |
|
|
2087 | else |
|
|
2088 | { |
|
|
2089 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2090 | frame->prepare = prepare_schedule; |
|
|
2091 | } |
|
|
2092 | |
|
|
2093 | frame->check = slf_check_join; |
|
|
2094 | frame->destroy = slf_destroy_join; |
|
|
2095 | frame->data = (void *)coro; |
|
|
2096 | SvREFCNT_inc (coro->hv); |
|
|
2097 | } |
|
|
2098 | |
|
|
2099 | static void |
1957 | coro_call_on_destroy (pTHX_ struct coro *coro) |
2100 | coro_call_on_destroy (pTHX_ struct coro *coro) |
1958 | { |
2101 | { |
1959 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
2102 | AV *od = coro->on_destroy; |
1960 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1961 | |
2103 | |
1962 | if (on_destroyp) |
2104 | if (!od) |
1963 | { |
2105 | return; |
1964 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1965 | |
2106 | |
1966 | while (AvFILLp (on_destroy) >= 0) |
2107 | while (AvFILLp (od) >= 0) |
|
|
2108 | { |
|
|
2109 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2110 | |
|
|
2111 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2112 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2113 | api_ready (aTHX_ cb); |
|
|
2114 | else |
1967 | { |
2115 | { |
1968 | dSP; /* don't disturb outer sp */ |
2116 | dSP; /* don't disturb outer sp */ |
1969 | SV *cb = av_pop (on_destroy); |
|
|
1970 | |
|
|
1971 | PUSHMARK (SP); |
2117 | PUSHMARK (SP); |
1972 | |
2118 | |
1973 | if (statusp) |
2119 | if (coro->status) |
1974 | { |
2120 | { |
1975 | int i; |
2121 | PUTBACK; |
1976 | AV *status = (AV *)SvRV (*statusp); |
2122 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
1977 | EXTEND (SP, AvFILLp (status) + 1); |
2123 | SPAGAIN; |
1978 | |
|
|
1979 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1980 | PUSHs (AvARRAY (status)[i]); |
|
|
1981 | } |
2124 | } |
1982 | |
2125 | |
1983 | PUTBACK; |
2126 | PUTBACK; |
1984 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
2127 | call_sv (cb, G_VOID | G_DISCARD); |
1985 | } |
2128 | } |
1986 | } |
2129 | } |
1987 | } |
2130 | } |
1988 | |
2131 | |
1989 | static void |
2132 | static void |
1990 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2133 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
1991 | { |
2134 | { |
1992 | int i; |
2135 | AV *av; |
1993 | HV *hv = (HV *)SvRV (coro_current); |
2136 | |
1994 | AV *av = newAV (); |
2137 | if (coro->status) |
|
|
2138 | { |
|
|
2139 | av = coro->status; |
|
|
2140 | av_clear (av); |
|
|
2141 | } |
|
|
2142 | else |
|
|
2143 | av = coro->status = newAV (); |
1995 | |
2144 | |
1996 | /* items are actually not so common, so optimise for this case */ |
2145 | /* items are actually not so common, so optimise for this case */ |
1997 | if (items) |
2146 | if (items) |
1998 | { |
2147 | { |
|
|
2148 | int i; |
|
|
2149 | |
1999 | av_extend (av, items - 1); |
2150 | av_extend (av, items - 1); |
2000 | |
2151 | |
2001 | for (i = 0; i < items; ++i) |
2152 | for (i = 0; i < items; ++i) |
2002 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
2153 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
2003 | } |
2154 | } |
|
|
2155 | } |
2004 | |
2156 | |
2005 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
2157 | static void |
2006 | |
2158 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2159 | { |
2007 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
2160 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
2008 | api_ready (aTHX_ sv_manager); |
2161 | api_ready (aTHX_ sv_manager); |
2009 | |
2162 | |
2010 | frame->prepare = prepare_schedule; |
2163 | frame->prepare = prepare_schedule; |
2011 | frame->check = slf_check_repeat; |
2164 | frame->check = slf_check_repeat; |
2012 | |
2165 | |
2013 | /* as a minor optimisation, we could unwind all stacks here */ |
2166 | /* as a minor optimisation, we could unwind all stacks here */ |
2014 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
2167 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
2015 | /*coro_unwind_stacks (aTHX);*/ |
2168 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2169 | } |
|
|
2170 | |
|
|
2171 | static void |
|
|
2172 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2173 | { |
|
|
2174 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2175 | |
|
|
2176 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2177 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2178 | } |
|
|
2179 | |
|
|
2180 | static void |
|
|
2181 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2182 | { |
|
|
2183 | HV *coro_hv; |
|
|
2184 | struct coro *coro; |
|
|
2185 | |
|
|
2186 | if (items <= 0) |
|
|
2187 | croak ("Coro::cancel called without coro object,"); |
|
|
2188 | |
|
|
2189 | coro = SvSTATE (arg [0]); |
|
|
2190 | coro_hv = coro->hv; |
|
|
2191 | |
|
|
2192 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2193 | |
|
|
2194 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2195 | { |
|
|
2196 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2197 | coro->slf_frame.data = (void *)coro; |
|
|
2198 | |
|
|
2199 | frame->prepare = prepare_nop; |
|
|
2200 | frame->check = slf_check_nop; |
|
|
2201 | } |
|
|
2202 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2203 | { |
|
|
2204 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2205 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2206 | } |
|
|
2207 | else |
|
|
2208 | { |
|
|
2209 | struct coro *self = SvSTATE_current; |
|
|
2210 | |
|
|
2211 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2212 | * unfortunately, this requires some magic trickery, as |
|
|
2213 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2214 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2215 | * besides, I can't get the slow-but-safe version working... |
|
|
2216 | */ |
|
|
2217 | slf_frame.data = 0; |
|
|
2218 | self->flags |= CF_NOCANCEL; |
|
|
2219 | coro_state_destroy (aTHX_ coro); |
|
|
2220 | self->flags &= ~CF_NOCANCEL; |
|
|
2221 | |
|
|
2222 | if (slf_frame.data) |
|
|
2223 | { |
|
|
2224 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2225 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2226 | } |
|
|
2227 | else |
|
|
2228 | { |
|
|
2229 | frame->prepare = prepare_nop; |
|
|
2230 | frame->check = slf_check_nop; |
|
|
2231 | } |
|
|
2232 | } |
|
|
2233 | } |
|
|
2234 | |
|
|
2235 | static int |
|
|
2236 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2237 | { |
|
|
2238 | frame->prepare = 0; |
|
|
2239 | coro_unwind_stacks (aTHX); |
|
|
2240 | |
|
|
2241 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2242 | |
|
|
2243 | return 1; |
|
|
2244 | } |
|
|
2245 | |
|
|
2246 | static int |
|
|
2247 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2248 | { |
|
|
2249 | if (coro->cctx) |
|
|
2250 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2251 | |
|
|
2252 | if (coro->flags & CF_NEW) |
|
|
2253 | { |
|
|
2254 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2255 | coro_state_destroy (aTHX_ coro); |
|
|
2256 | } |
|
|
2257 | else |
|
|
2258 | { |
|
|
2259 | if (!coro->slf_frame.prepare) |
|
|
2260 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2261 | |
|
|
2262 | slf_destroy (aTHX_ coro); |
|
|
2263 | |
|
|
2264 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2265 | coro->slf_frame.prepare = prepare_nop; |
|
|
2266 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2267 | |
|
|
2268 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2269 | } |
|
|
2270 | |
|
|
2271 | return 1; |
2016 | } |
2272 | } |
2017 | |
2273 | |
2018 | /*****************************************************************************/ |
2274 | /*****************************************************************************/ |
2019 | /* async pool handler */ |
2275 | /* async pool handler */ |
2020 | |
2276 | |
… | |
… | |
2051 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2307 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2052 | { |
2308 | { |
2053 | HV *hv = (HV *)SvRV (coro_current); |
2309 | HV *hv = (HV *)SvRV (coro_current); |
2054 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2310 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2055 | |
2311 | |
2056 | if (expect_true (coro->saved_deffh)) |
2312 | if (ecb_expect_true (coro->saved_deffh)) |
2057 | { |
2313 | { |
2058 | /* subsequent iteration */ |
2314 | /* subsequent iteration */ |
2059 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2315 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2060 | coro->saved_deffh = 0; |
2316 | coro->saved_deffh = 0; |
2061 | |
2317 | |
2062 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2318 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2063 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2319 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2064 | { |
2320 | { |
2065 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
2321 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
2066 | coro->invoke_av = newAV (); |
2322 | return; |
2067 | |
|
|
2068 | frame->prepare = prepare_nop; |
|
|
2069 | } |
2323 | } |
2070 | else |
2324 | else |
2071 | { |
2325 | { |
2072 | av_clear (GvAV (PL_defgv)); |
2326 | av_clear (GvAV (PL_defgv)); |
2073 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
2327 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
… | |
… | |
2296 | static void |
2550 | static void |
2297 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2551 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2298 | { |
2552 | { |
2299 | frame->prepare = prepare_cede_notself; |
2553 | frame->prepare = prepare_cede_notself; |
2300 | frame->check = slf_check_nop; |
2554 | frame->check = slf_check_nop; |
|
|
2555 | } |
|
|
2556 | |
|
|
2557 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2558 | static void |
|
|
2559 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2560 | { |
|
|
2561 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2562 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2563 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2564 | |
|
|
2565 | /* |
|
|
2566 | * The on_destroy above most likely is from an SLF call. |
|
|
2567 | * Since by definition the SLF call will not finish when we destroy |
|
|
2568 | * the coro, we will have to force-finish it here, otherwise |
|
|
2569 | * cleanup functions cannot call SLF functions. |
|
|
2570 | */ |
|
|
2571 | coro->slf_frame.prepare = 0; |
2301 | } |
2572 | } |
2302 | |
2573 | |
2303 | /* |
2574 | /* |
2304 | * these not obviously related functions are all rolled into one |
2575 | * these not obviously related functions are all rolled into one |
2305 | * function to increase chances that they all will call transfer with the same |
2576 | * function to increase chances that they all will call transfer with the same |
… | |
… | |
2312 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
2583 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
2313 | |
2584 | |
2314 | /* set up the slf frame, unless it has already been set-up */ |
2585 | /* set up the slf frame, unless it has already been set-up */ |
2315 | /* the latter happens when a new coro has been started */ |
2586 | /* the latter happens when a new coro has been started */ |
2316 | /* or when a new cctx was attached to an existing coroutine */ |
2587 | /* or when a new cctx was attached to an existing coroutine */ |
2317 | if (expect_true (!slf_frame.prepare)) |
2588 | if (ecb_expect_true (!slf_frame.prepare)) |
2318 | { |
2589 | { |
2319 | /* first iteration */ |
2590 | /* first iteration */ |
2320 | dSP; |
2591 | dSP; |
2321 | SV **arg = PL_stack_base + TOPMARK + 1; |
2592 | SV **arg = PL_stack_base + TOPMARK + 1; |
2322 | int items = SP - arg; /* args without function object */ |
2593 | int items = SP - arg; /* args without function object */ |
… | |
… | |
2363 | while (slf_frame.check (aTHX_ &slf_frame)); |
2634 | while (slf_frame.check (aTHX_ &slf_frame)); |
2364 | |
2635 | |
2365 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
2636 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
2366 | |
2637 | |
2367 | /* exception handling */ |
2638 | /* exception handling */ |
2368 | if (expect_false (CORO_THROW)) |
2639 | if (ecb_expect_false (CORO_THROW)) |
2369 | { |
2640 | { |
2370 | SV *exception = sv_2mortal (CORO_THROW); |
2641 | SV *exception = sv_2mortal (CORO_THROW); |
2371 | |
2642 | |
2372 | CORO_THROW = 0; |
2643 | CORO_THROW = 0; |
2373 | sv_setsv (ERRSV, exception); |
2644 | sv_setsv (ERRSV, exception); |
2374 | croak (0); |
2645 | croak (0); |
2375 | } |
2646 | } |
2376 | |
2647 | |
2377 | /* return value handling - mostly like entersub */ |
2648 | /* return value handling - mostly like entersub */ |
2378 | /* make sure we put something on the stack in scalar context */ |
2649 | /* make sure we put something on the stack in scalar context */ |
2379 | if (GIMME_V == G_SCALAR) |
2650 | if (GIMME_V == G_SCALAR |
|
|
2651 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
2380 | { |
2652 | { |
2381 | dSP; |
2653 | dSP; |
2382 | SV **bot = PL_stack_base + checkmark; |
2654 | SV **bot = PL_stack_base + checkmark; |
2383 | |
2655 | |
2384 | if (sp == bot) /* too few, push undef */ |
2656 | if (sp == bot) /* too few, push undef */ |
2385 | bot [1] = &PL_sv_undef; |
2657 | bot [1] = &PL_sv_undef; |
2386 | else if (sp != bot + 1) /* too many, take last one */ |
2658 | else /* too many, take last one */ |
2387 | bot [1] = *sp; |
2659 | bot [1] = *sp; |
2388 | |
2660 | |
2389 | SP = bot + 1; |
2661 | SP = bot + 1; |
2390 | |
2662 | |
2391 | PUTBACK; |
2663 | PUTBACK; |
… | |
… | |
2498 | { |
2770 | { |
2499 | PerlIOBuf base; |
2771 | PerlIOBuf base; |
2500 | NV next, every; |
2772 | NV next, every; |
2501 | } PerlIOCede; |
2773 | } PerlIOCede; |
2502 | |
2774 | |
2503 | static IV |
2775 | static IV ecb_cold |
2504 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2776 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2505 | { |
2777 | { |
2506 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2778 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2507 | |
2779 | |
2508 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2780 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2509 | self->next = nvtime () + self->every; |
2781 | self->next = nvtime () + self->every; |
2510 | |
2782 | |
2511 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2783 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2512 | } |
2784 | } |
2513 | |
2785 | |
2514 | static SV * |
2786 | static SV * ecb_cold |
2515 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2787 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2516 | { |
2788 | { |
2517 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2789 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2518 | |
2790 | |
2519 | return newSVnv (self->every); |
2791 | return newSVnv (self->every); |
… | |
… | |
2631 | SvREFCNT_dec (cb); |
2903 | SvREFCNT_dec (cb); |
2632 | } |
2904 | } |
2633 | } |
2905 | } |
2634 | |
2906 | |
2635 | static void |
2907 | static void |
2636 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2908 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
2637 | { |
2909 | { |
2638 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2910 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2639 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2911 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
2640 | } |
2912 | } |
2641 | |
2913 | |
2642 | static int |
2914 | static int |
2643 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2915 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2644 | { |
2916 | { |
2645 | AV *av = (AV *)frame->data; |
2917 | AV *av = (AV *)frame->data; |
2646 | SV *count_sv = AvARRAY (av)[0]; |
2918 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2919 | SV *coro_hv = SvRV (coro_current); |
2647 | |
2920 | |
2648 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
2921 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
2649 | if (CORO_THROW) |
2922 | if (CORO_THROW) |
2650 | return 0; |
2923 | return 0; |
2651 | else if (SvIVX (count_sv) > 0) |
2924 | else if (SvIVX (count_sv) > 0) |
2652 | { |
2925 | { |
2653 | SvSTATE_current->on_destroy = 0; |
2926 | frame->destroy = 0; |
2654 | |
2927 | |
2655 | if (acquire) |
2928 | if (acquire) |
2656 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2929 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2657 | else |
2930 | else |
2658 | coro_semaphore_adjust (aTHX_ av, 0); |
2931 | coro_semaphore_adjust (aTHX_ av, 0); |
… | |
… | |
2663 | { |
2936 | { |
2664 | int i; |
2937 | int i; |
2665 | /* if we were woken up but can't down, we look through the whole */ |
2938 | /* if we were woken up but can't down, we look through the whole */ |
2666 | /* waiters list and only add us if we aren't in there already */ |
2939 | /* waiters list and only add us if we aren't in there already */ |
2667 | /* this avoids some degenerate memory usage cases */ |
2940 | /* this avoids some degenerate memory usage cases */ |
2668 | |
2941 | for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug |
2669 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2670 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
2942 | if (AvARRAY (av)[i] == coro_hv) |
2671 | return 1; |
2943 | return 1; |
2672 | |
2944 | |
2673 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2945 | av_push (av, SvREFCNT_inc (coro_hv)); |
2674 | return 1; |
2946 | return 1; |
2675 | } |
2947 | } |
2676 | } |
2948 | } |
2677 | |
2949 | |
2678 | static int |
2950 | static int |
… | |
… | |
2701 | { |
2973 | { |
2702 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2974 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2703 | |
2975 | |
2704 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2976 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2705 | frame->prepare = prepare_schedule; |
2977 | frame->prepare = prepare_schedule; |
2706 | |
|
|
2707 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2978 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2708 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2979 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2709 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
2980 | frame->destroy = coro_semaphore_destroy; |
2710 | } |
2981 | } |
2711 | } |
2982 | } |
2712 | |
2983 | |
2713 | static void |
2984 | static void |
2714 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2985 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
… | |
… | |
2932 | dSP; |
3203 | dSP; |
2933 | |
3204 | |
2934 | static SV *prio_cv; |
3205 | static SV *prio_cv; |
2935 | static SV *prio_sv; |
3206 | static SV *prio_sv; |
2936 | |
3207 | |
2937 | if (expect_false (!prio_cv)) |
3208 | if (ecb_expect_false (!prio_cv)) |
2938 | { |
3209 | { |
2939 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
3210 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
2940 | prio_sv = newSViv (0); |
3211 | prio_sv = newSViv (0); |
2941 | } |
3212 | } |
2942 | |
3213 | |
… | |
… | |
3048 | } |
3319 | } |
3049 | |
3320 | |
3050 | return coro_sv; |
3321 | return coro_sv; |
3051 | } |
3322 | } |
3052 | |
3323 | |
|
|
3324 | #ifndef __cplusplus |
|
|
3325 | ecb_cold XS(boot_Coro__State); |
|
|
3326 | #endif |
|
|
3327 | |
3053 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3328 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3054 | |
3329 | |
3055 | PROTOTYPES: DISABLE |
3330 | PROTOTYPES: DISABLE |
3056 | |
3331 | |
3057 | BOOT: |
3332 | BOOT: |
… | |
… | |
3109 | coroapi.prepare_nop = prepare_nop; |
3384 | coroapi.prepare_nop = prepare_nop; |
3110 | coroapi.prepare_schedule = prepare_schedule; |
3385 | coroapi.prepare_schedule = prepare_schedule; |
3111 | coroapi.prepare_cede = prepare_cede; |
3386 | coroapi.prepare_cede = prepare_cede; |
3112 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3387 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3113 | |
3388 | |
3114 | { |
3389 | time_init (aTHX); |
3115 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
3116 | |
|
|
3117 | if (!svp) croak ("Time::HiRes is required"); |
|
|
3118 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
3119 | |
|
|
3120 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
3121 | |
|
|
3122 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
3123 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
3124 | } |
|
|
3125 | |
3390 | |
3126 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
3391 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
3127 | } |
3392 | } |
3128 | |
3393 | |
3129 | SV * |
3394 | SV * |
… | |
… | |
3138 | void |
3403 | void |
3139 | transfer (...) |
3404 | transfer (...) |
3140 | PROTOTYPE: $$ |
3405 | PROTOTYPE: $$ |
3141 | CODE: |
3406 | CODE: |
3142 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
3407 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
3143 | |
|
|
3144 | bool |
|
|
3145 | _destroy (SV *coro_sv) |
|
|
3146 | CODE: |
|
|
3147 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
3148 | OUTPUT: |
|
|
3149 | RETVAL |
|
|
3150 | |
3408 | |
3151 | void |
3409 | void |
3152 | _exit (int code) |
3410 | _exit (int code) |
3153 | PROTOTYPE: $ |
3411 | PROTOTYPE: $ |
3154 | CODE: |
3412 | CODE: |
… | |
… | |
3230 | CODE: |
3488 | CODE: |
3231 | { |
3489 | { |
3232 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3490 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3233 | { |
3491 | { |
3234 | struct coro *current = SvSTATE_current; |
3492 | struct coro *current = SvSTATE_current; |
|
|
3493 | struct CoroSLF slf_save; |
3235 | |
3494 | |
3236 | if (current != coro) |
3495 | if (current != coro) |
3237 | { |
3496 | { |
3238 | PUTBACK; |
3497 | PUTBACK; |
3239 | save_perl (aTHX_ current); |
3498 | save_perl (aTHX_ current); |
3240 | load_perl (aTHX_ coro); |
3499 | load_perl (aTHX_ coro); |
|
|
3500 | /* the coro is most likely in an active SLF call. |
|
|
3501 | * while not strictly required (the code we execute is |
|
|
3502 | * not allowed to call any SLF functions), it's cleaner |
|
|
3503 | * to reinitialise the slf_frame and restore it later. |
|
|
3504 | * This might one day allow us to actually do SLF calls |
|
|
3505 | * from code executed here. |
|
|
3506 | */ |
|
|
3507 | slf_save = slf_frame; |
|
|
3508 | slf_frame.prepare = 0; |
3241 | SPAGAIN; |
3509 | SPAGAIN; |
3242 | } |
3510 | } |
3243 | |
3511 | |
3244 | PUSHSTACK; |
3512 | PUSHSTACK; |
3245 | |
3513 | |
… | |
… | |
3255 | SPAGAIN; |
3523 | SPAGAIN; |
3256 | |
3524 | |
3257 | if (current != coro) |
3525 | if (current != coro) |
3258 | { |
3526 | { |
3259 | PUTBACK; |
3527 | PUTBACK; |
|
|
3528 | slf_frame = slf_save; |
3260 | save_perl (aTHX_ coro); |
3529 | save_perl (aTHX_ coro); |
3261 | load_perl (aTHX_ current); |
3530 | load_perl (aTHX_ current); |
3262 | SPAGAIN; |
3531 | SPAGAIN; |
3263 | } |
3532 | } |
3264 | } |
3533 | } |
… | |
… | |
3269 | PROTOTYPE: $ |
3538 | PROTOTYPE: $ |
3270 | ALIAS: |
3539 | ALIAS: |
3271 | is_ready = CF_READY |
3540 | is_ready = CF_READY |
3272 | is_running = CF_RUNNING |
3541 | is_running = CF_RUNNING |
3273 | is_new = CF_NEW |
3542 | is_new = CF_NEW |
3274 | is_destroyed = CF_DESTROYED |
3543 | is_destroyed = CF_ZOMBIE |
|
|
3544 | is_zombie = CF_ZOMBIE |
3275 | is_suspended = CF_SUSPENDED |
3545 | is_suspended = CF_SUSPENDED |
3276 | CODE: |
3546 | CODE: |
3277 | RETVAL = boolSV (coro->flags & ix); |
3547 | RETVAL = boolSV (coro->flags & ix); |
3278 | OUTPUT: |
3548 | OUTPUT: |
3279 | RETVAL |
3549 | RETVAL |
… | |
… | |
3350 | |
3620 | |
3351 | void |
3621 | void |
3352 | cancel (Coro::State self) |
3622 | cancel (Coro::State self) |
3353 | CODE: |
3623 | CODE: |
3354 | coro_state_destroy (aTHX_ self); |
3624 | coro_state_destroy (aTHX_ self); |
3355 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3356 | |
|
|
3357 | |
3625 | |
3358 | SV * |
3626 | SV * |
3359 | enable_times (int enabled = enable_times) |
3627 | enable_times (int enabled = enable_times) |
3360 | CODE: |
3628 | CODE: |
3361 | { |
3629 | { |
… | |
… | |
3376 | times (Coro::State self) |
3644 | times (Coro::State self) |
3377 | PPCODE: |
3645 | PPCODE: |
3378 | { |
3646 | { |
3379 | struct coro *current = SvSTATE (coro_current); |
3647 | struct coro *current = SvSTATE (coro_current); |
3380 | |
3648 | |
3381 | if (expect_false (current == self)) |
3649 | if (ecb_expect_false (current == self)) |
3382 | { |
3650 | { |
3383 | coro_times_update (); |
3651 | coro_times_update (); |
3384 | coro_times_add (SvSTATE (coro_current)); |
3652 | coro_times_add (SvSTATE (coro_current)); |
3385 | } |
3653 | } |
3386 | |
3654 | |
3387 | EXTEND (SP, 2); |
3655 | EXTEND (SP, 2); |
3388 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
3656 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
3389 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
3657 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
3390 | |
3658 | |
3391 | if (expect_false (current == self)) |
3659 | if (ecb_expect_false (current == self)) |
3392 | coro_times_sub (SvSTATE (coro_current)); |
3660 | coro_times_sub (SvSTATE (coro_current)); |
3393 | } |
3661 | } |
3394 | |
3662 | |
3395 | void |
3663 | void |
3396 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
3664 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
… | |
… | |
3417 | BOOT: |
3685 | BOOT: |
3418 | { |
3686 | { |
3419 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3687 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3420 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3688 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3421 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
3689 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
3422 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
|
|
3423 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
3690 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
3424 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3691 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3425 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
3692 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
3426 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
3693 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
3427 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
3694 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
… | |
… | |
3466 | api_ready (aTHX_ RETVAL); |
3733 | api_ready (aTHX_ RETVAL); |
3467 | OUTPUT: |
3734 | OUTPUT: |
3468 | RETVAL |
3735 | RETVAL |
3469 | |
3736 | |
3470 | void |
3737 | void |
|
|
3738 | _destroy (Coro::State coro) |
|
|
3739 | CODE: |
|
|
3740 | /* used by the manager thread */ |
|
|
3741 | coro_state_destroy (aTHX_ coro); |
|
|
3742 | |
|
|
3743 | void |
|
|
3744 | on_destroy (Coro::State coro, SV *cb) |
|
|
3745 | CODE: |
|
|
3746 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3747 | |
|
|
3748 | void |
|
|
3749 | join (...) |
|
|
3750 | CODE: |
|
|
3751 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3752 | |
|
|
3753 | void |
3471 | terminate (...) |
3754 | terminate (...) |
3472 | CODE: |
3755 | CODE: |
3473 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
3756 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3757 | |
|
|
3758 | void |
|
|
3759 | cancel (...) |
|
|
3760 | CODE: |
|
|
3761 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3762 | |
|
|
3763 | int |
|
|
3764 | safe_cancel (Coro::State self, ...) |
|
|
3765 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
3474 | |
3766 | |
3475 | void |
3767 | void |
3476 | schedule (...) |
3768 | schedule (...) |
3477 | CODE: |
3769 | CODE: |
3478 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
3770 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |