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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 |
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31 | # define setjmp _setjmp /* deep magic */ |
33 | # define setjmp _setjmp /* deep magic */ |
32 | #else |
34 | #else |
33 | # include <inttypes.h> /* most portable stdint.h */ |
35 | # include <inttypes.h> /* most portable stdint.h */ |
34 | #endif |
36 | #endif |
35 | |
37 | |
36 | #ifdef HAVE_MMAP |
38 | #if HAVE_MMAP |
37 | # include <unistd.h> |
39 | # include <unistd.h> |
38 | # include <sys/mman.h> |
40 | # include <sys/mman.h> |
39 | # ifndef MAP_ANONYMOUS |
41 | # ifndef MAP_ANONYMOUS |
40 | # ifdef MAP_ANON |
42 | # ifdef MAP_ANON |
41 | # define MAP_ANONYMOUS MAP_ANON |
43 | # define MAP_ANONYMOUS MAP_ANON |
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… | |
61 | #endif |
63 | #endif |
62 | |
64 | |
63 | /* the maximum number of idle cctx that will be pooled */ |
65 | /* the maximum number of idle cctx that will be pooled */ |
64 | static int cctx_max_idle = 4; |
66 | static int cctx_max_idle = 4; |
65 | |
67 | |
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68 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
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69 | # define HAS_SCOPESTACK_NAME 1 |
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70 | #endif |
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71 | |
66 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
72 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
67 | # undef CORO_STACKGUARD |
73 | # undef CORO_STACKGUARD |
68 | #endif |
74 | #endif |
69 | |
75 | |
70 | #ifndef CORO_STACKGUARD |
76 | #ifndef CORO_STACKGUARD |
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86 | # define STACKLEVEL ((void *)&stacklevel) |
92 | # define STACKLEVEL ((void *)&stacklevel) |
87 | #endif |
93 | #endif |
88 | |
94 | |
89 | #define IN_DESTRUCT PL_dirty |
95 | #define IN_DESTRUCT PL_dirty |
90 | |
96 | |
91 | #if __GNUC__ >= 3 |
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92 | # define attribute(x) __attribute__(x) |
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93 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
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94 | # define INLINE static inline |
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95 | #else |
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96 | # define attribute(x) |
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97 | # define expect(expr,value) (expr) |
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98 | # define INLINE static |
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99 | #endif |
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100 | |
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101 | #define expect_false(expr) expect ((expr) != 0, 0) |
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102 | #define expect_true(expr) expect ((expr) != 0, 1) |
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103 | |
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104 | #define NOINLINE attribute ((noinline)) |
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105 | |
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106 | #include "CoroAPI.h" |
97 | #include "CoroAPI.h" |
107 | #define GCoroAPI (&coroapi) /* very sneaky */ |
98 | #define GCoroAPI (&coroapi) /* very sneaky */ |
108 | |
99 | |
109 | #ifdef USE_ITHREADS |
100 | #ifdef USE_ITHREADS |
110 | # if CORO_PTHREAD |
101 | # if CORO_PTHREAD |
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126 | static void (*u2time)(pTHX_ UV ret[2]); |
117 | static void (*u2time)(pTHX_ UV ret[2]); |
127 | |
118 | |
128 | /* we hijack an hopefully unused CV flag for our purposes */ |
119 | /* we hijack an hopefully unused CV flag for our purposes */ |
129 | #define CVf_SLF 0x4000 |
120 | #define CVf_SLF 0x4000 |
130 | static OP *pp_slf (pTHX); |
121 | static OP *pp_slf (pTHX); |
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122 | static void slf_destroy (pTHX_ struct coro *coro); |
131 | |
123 | |
132 | static U32 cctx_gen; |
124 | static U32 cctx_gen; |
133 | static size_t cctx_stacksize = CORO_STACKSIZE; |
125 | static size_t cctx_stacksize = CORO_STACKSIZE; |
134 | static struct CoroAPI coroapi; |
126 | static struct CoroAPI coroapi; |
135 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
127 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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165 | static char times_valid; |
157 | static char times_valid; |
166 | |
158 | |
167 | static struct coro_cctx *cctx_first; |
159 | static struct coro_cctx *cctx_first; |
168 | static int cctx_count, cctx_idle; |
160 | static int cctx_count, cctx_idle; |
169 | |
161 | |
170 | enum { |
162 | enum |
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163 | { |
171 | CC_MAPPED = 0x01, |
164 | CC_MAPPED = 0x01, |
172 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
165 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
173 | CC_TRACE = 0x04, |
166 | CC_TRACE = 0x04, |
174 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
167 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
175 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
168 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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185 | void *sptr; |
178 | void *sptr; |
186 | size_t ssize; |
179 | size_t ssize; |
187 | |
180 | |
188 | /* cpu state */ |
181 | /* cpu state */ |
189 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
182 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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183 | #ifndef NDEBUG |
190 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
184 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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185 | #endif |
191 | JMPENV *top_env; |
186 | JMPENV *top_env; |
192 | coro_context cctx; |
187 | coro_context cctx; |
193 | |
188 | |
194 | U32 gen; |
189 | U32 gen; |
195 | #if CORO_USE_VALGRIND |
190 | #if CORO_USE_VALGRIND |
196 | int valgrind_id; |
191 | int valgrind_id; |
197 | #endif |
192 | #endif |
198 | unsigned char flags; |
193 | unsigned char flags; |
199 | } coro_cctx; |
194 | } coro_cctx; |
200 | |
195 | |
201 | coro_cctx *cctx_current; /* the currently running cctx */ |
196 | static coro_cctx *cctx_current; /* the currently running cctx */ |
202 | |
197 | |
203 | /*****************************************************************************/ |
198 | /*****************************************************************************/ |
204 | |
199 | |
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200 | static MGVTBL coro_state_vtbl; |
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201 | |
205 | enum { |
202 | enum |
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203 | { |
206 | CF_RUNNING = 0x0001, /* coroutine is running */ |
204 | CF_RUNNING = 0x0001, /* coroutine is running */ |
207 | CF_READY = 0x0002, /* coroutine is ready */ |
205 | CF_READY = 0x0002, /* coroutine is ready */ |
208 | CF_NEW = 0x0004, /* has never been switched to */ |
206 | CF_NEW = 0x0004, /* has never been switched to */ |
209 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
207 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
210 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
208 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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209 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
211 | }; |
210 | }; |
212 | |
211 | |
213 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
212 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
214 | typedef struct |
213 | typedef struct |
215 | { |
214 | { |
216 | SV *defsv; |
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217 | AV *defav; |
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218 | SV *errsv; |
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219 | SV *irsgv; |
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220 | HV *hinthv; |
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221 | #define VAR(name,type) type name; |
215 | #define VARx(name,expr,type) type name; |
222 | # include "state.h" |
216 | #include "state.h" |
223 | #undef VAR |
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224 | } perl_slots; |
217 | } perl_slots; |
225 | |
218 | |
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219 | /* how many context stack entries do we need for perl_slots */ |
226 | #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)) |
227 | |
221 | |
228 | /* this is a structure representing a perl-level coroutine */ |
222 | /* this is a structure representing a perl-level coroutine */ |
229 | struct coro { |
223 | struct coro |
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224 | { |
230 | /* the C coroutine allocated to this perl coroutine, if any */ |
225 | /* the C coroutine allocated to this perl coroutine, if any */ |
231 | coro_cctx *cctx; |
226 | coro_cctx *cctx; |
232 | |
227 | |
233 | /* ready queue */ |
228 | /* ready queue */ |
234 | struct coro *next_ready; |
229 | struct coro *next_ready; |
… | |
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236 | /* state data */ |
231 | /* state data */ |
237 | struct CoroSLF slf_frame; /* saved slf frame */ |
232 | struct CoroSLF slf_frame; /* saved slf frame */ |
238 | AV *mainstack; |
233 | AV *mainstack; |
239 | perl_slots *slot; /* basically the saved sp */ |
234 | perl_slots *slot; /* basically the saved sp */ |
240 | |
235 | |
241 | CV *startcv; /* the CV to execute */ |
236 | CV *startcv; /* the CV to execute */ |
242 | AV *args; /* data associated with this coroutine (initial args) */ |
237 | AV *args; /* data associated with this coroutine (initial args) */ |
243 | int refcnt; /* coroutines are refcounted, yes */ |
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244 | int flags; /* CF_ flags */ |
238 | int flags; /* CF_ flags */ |
245 | HV *hv; /* the perl hash associated with this coro, if any */ |
239 | HV *hv; /* the perl hash associated with this coro, if any */ |
246 | void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */ |
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247 | |
240 | |
248 | /* statistics */ |
241 | /* statistics */ |
249 | int usecount; /* number of transfers to this coro */ |
242 | int usecount; /* number of transfers to this coro */ |
250 | |
243 | |
251 | /* coro process data */ |
244 | /* coro process data */ |
252 | int prio; |
245 | int prio; |
253 | SV *except; /* exception to be thrown */ |
246 | SV *except; /* exception to be thrown */ |
254 | 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 */ |
255 | |
250 | |
256 | /* async_pool */ |
251 | /* async_pool */ |
257 | SV *saved_deffh; |
252 | SV *saved_deffh; |
258 | SV *invoke_cb; |
253 | SV *invoke_cb; |
259 | AV *invoke_av; |
254 | AV *invoke_av; |
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275 | typedef struct coro *Coro__State; |
270 | typedef struct coro *Coro__State; |
276 | typedef struct coro *Coro__State_or_hashref; |
271 | typedef struct coro *Coro__State_or_hashref; |
277 | |
272 | |
278 | /* the following variables are effectively part of the perl context */ |
273 | /* the following variables are effectively part of the perl context */ |
279 | /* and get copied between struct coro and these variables */ |
274 | /* and get copied between struct coro and these variables */ |
280 | /* the mainr easonw e don't support windows process emulation */ |
275 | /* the main reason we don't support windows process emulation */ |
281 | static struct CoroSLF slf_frame; /* the current slf frame */ |
276 | static struct CoroSLF slf_frame; /* the current slf frame */ |
282 | |
277 | |
283 | /** Coro ********************************************************************/ |
278 | /** Coro ********************************************************************/ |
284 | |
279 | |
285 | #define CORO_PRIO_MAX 3 |
280 | #define CORO_PRIO_MAX 3 |
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291 | |
286 | |
292 | /* for Coro.pm */ |
287 | /* for Coro.pm */ |
293 | static SV *coro_current; |
288 | static SV *coro_current; |
294 | static SV *coro_readyhook; |
289 | static SV *coro_readyhook; |
295 | 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 */ |
296 | static CV *cv_coro_run, *cv_coro_terminate; |
291 | static CV *cv_coro_run; |
297 | static struct coro *coro_first; |
292 | static struct coro *coro_first; |
298 | #define coro_nready coroapi.nready |
293 | #define coro_nready coroapi.nready |
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294 | |
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295 | /** JIT *********************************************************************/ |
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296 | |
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297 | #if CORO_JIT |
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298 | /* APPLE doesn't have HAVE_MMAP though */ |
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299 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
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300 | #ifndef CORO_JIT_TYPE |
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301 | #if __x86_64 && CORO_JIT_UNIXY |
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302 | #define CORO_JIT_TYPE "amd64-unix" |
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303 | #elif __i386 && CORO_JIT_UNIXY |
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304 | #define CORO_JIT_TYPE "x86-unix" |
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305 | #endif |
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306 | #endif |
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307 | #endif |
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308 | |
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309 | #if !defined(CORO_JIT_TYPE) || !HAVE_MMAP |
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310 | #undef CORO_JIT |
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311 | #endif |
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312 | |
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313 | #if CORO_JIT |
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314 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
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315 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
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316 | #endif |
299 | |
317 | |
300 | /** Coro::Select ************************************************************/ |
318 | /** Coro::Select ************************************************************/ |
301 | |
319 | |
302 | static OP *(*coro_old_pp_sselect) (pTHX); |
320 | static OP *(*coro_old_pp_sselect) (pTHX); |
303 | static SV *coro_select_select; |
321 | static SV *coro_select_select; |
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319 | |
337 | |
320 | /** time stuff **************************************************************/ |
338 | /** time stuff **************************************************************/ |
321 | |
339 | |
322 | #ifdef HAS_GETTIMEOFDAY |
340 | #ifdef HAS_GETTIMEOFDAY |
323 | |
341 | |
324 | static void |
342 | ecb_inline void |
325 | coro_u2time (pTHX_ UV ret[2]) |
343 | coro_u2time (pTHX_ UV ret[2]) |
326 | { |
344 | { |
327 | struct timeval tv; |
345 | struct timeval tv; |
328 | gettimeofday (&tv, 0); |
346 | gettimeofday (&tv, 0); |
329 | |
347 | |
330 | ret [0] = tv.tv_sec; |
348 | ret [0] = tv.tv_sec; |
331 | ret [1] = tv.tv_usec; |
349 | ret [1] = tv.tv_usec; |
332 | } |
350 | } |
333 | |
351 | |
334 | static double |
352 | ecb_inline double |
335 | coro_nvtime () |
353 | coro_nvtime (void) |
336 | { |
354 | { |
337 | struct timeval tv; |
355 | struct timeval tv; |
338 | gettimeofday (&tv, 0); |
356 | gettimeofday (&tv, 0); |
339 | |
357 | |
340 | return tv.tv_sec + tv.tv_usec * 1e-6; |
358 | return tv.tv_sec + tv.tv_usec * 1e-6; |
341 | } |
359 | } |
342 | |
360 | |
343 | static void |
361 | ecb_inline void |
344 | time_init (pTHX) |
362 | time_init (pTHX) |
345 | { |
363 | { |
346 | nvtime = coro_nvtime; |
364 | nvtime = coro_nvtime; |
347 | u2time = coro_u2time; |
365 | u2time = coro_u2time; |
348 | } |
366 | } |
349 | |
367 | |
350 | #else |
368 | #else |
351 | |
369 | |
352 | static void |
370 | ecb_inline void |
353 | time_init (pTHX) |
371 | time_init (pTHX) |
354 | { |
372 | { |
355 | SV **svp; |
373 | SV **svp; |
356 | |
374 | |
357 | require_pv ("Time/HiRes.pm"); |
375 | require_pv ("Time/HiRes.pm"); |
358 | |
376 | |
359 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
377 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
360 | |
378 | |
361 | if (!svp) croak ("Time::HiRes is required, but missing."); |
379 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
362 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
380 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
363 | |
381 | |
364 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
382 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
365 | |
383 | |
366 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
384 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
367 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
385 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
… | |
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369 | |
387 | |
370 | #endif |
388 | #endif |
371 | |
389 | |
372 | /** lowlevel stuff **********************************************************/ |
390 | /** lowlevel stuff **********************************************************/ |
373 | |
391 | |
374 | static SV * |
392 | static SV * ecb_noinline |
375 | coro_get_sv (pTHX_ const char *name, int create) |
393 | coro_get_sv (pTHX_ const char *name, int create) |
376 | { |
394 | { |
377 | #if PERL_VERSION_ATLEAST (5,10,0) |
395 | #if PERL_VERSION_ATLEAST (5,10,0) |
378 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
396 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
379 | get_sv (name, create); |
397 | get_sv (name, create); |
380 | #endif |
398 | #endif |
381 | return get_sv (name, create); |
399 | return get_sv (name, create); |
382 | } |
400 | } |
383 | |
401 | |
384 | static AV * |
402 | static AV * ecb_noinline |
385 | coro_get_av (pTHX_ const char *name, int create) |
403 | coro_get_av (pTHX_ const char *name, int create) |
386 | { |
404 | { |
387 | #if PERL_VERSION_ATLEAST (5,10,0) |
405 | #if PERL_VERSION_ATLEAST (5,10,0) |
388 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
406 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
389 | get_av (name, create); |
407 | get_av (name, create); |
390 | #endif |
408 | #endif |
391 | return get_av (name, create); |
409 | return get_av (name, create); |
392 | } |
410 | } |
393 | |
411 | |
394 | static HV * |
412 | static HV * ecb_noinline |
395 | coro_get_hv (pTHX_ const char *name, int create) |
413 | coro_get_hv (pTHX_ const char *name, int create) |
396 | { |
414 | { |
397 | #if PERL_VERSION_ATLEAST (5,10,0) |
415 | #if PERL_VERSION_ATLEAST (5,10,0) |
398 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
416 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
399 | get_hv (name, create); |
417 | get_hv (name, create); |
400 | #endif |
418 | #endif |
401 | return get_hv (name, create); |
419 | return get_hv (name, create); |
402 | } |
420 | } |
403 | |
421 | |
404 | INLINE void |
422 | ecb_inline void |
405 | coro_times_update () |
423 | coro_times_update (void) |
406 | { |
424 | { |
407 | #ifdef coro_clock_gettime |
425 | #ifdef coro_clock_gettime |
408 | struct timespec ts; |
426 | struct timespec ts; |
409 | |
427 | |
410 | ts.tv_sec = ts.tv_nsec = 0; |
428 | ts.tv_sec = ts.tv_nsec = 0; |
… | |
… | |
422 | time_real [0] = tv [0]; |
440 | time_real [0] = tv [0]; |
423 | time_real [1] = tv [1] * 1000; |
441 | time_real [1] = tv [1] * 1000; |
424 | #endif |
442 | #endif |
425 | } |
443 | } |
426 | |
444 | |
427 | INLINE void |
445 | ecb_inline void |
428 | coro_times_add (struct coro *c) |
446 | coro_times_add (struct coro *c) |
429 | { |
447 | { |
430 | c->t_real [1] += time_real [1]; |
448 | c->t_real [1] += time_real [1]; |
431 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
449 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
432 | c->t_real [0] += time_real [0]; |
450 | c->t_real [0] += time_real [0]; |
… | |
… | |
434 | c->t_cpu [1] += time_cpu [1]; |
452 | c->t_cpu [1] += time_cpu [1]; |
435 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
453 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
436 | c->t_cpu [0] += time_cpu [0]; |
454 | c->t_cpu [0] += time_cpu [0]; |
437 | } |
455 | } |
438 | |
456 | |
439 | INLINE void |
457 | ecb_inline void |
440 | coro_times_sub (struct coro *c) |
458 | coro_times_sub (struct coro *c) |
441 | { |
459 | { |
442 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
460 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
443 | c->t_real [1] -= time_real [1]; |
461 | c->t_real [1] -= time_real [1]; |
444 | c->t_real [0] -= time_real [0]; |
462 | c->t_real [0] -= time_real [0]; |
… | |
… | |
452 | /* magic glue */ |
470 | /* magic glue */ |
453 | |
471 | |
454 | #define CORO_MAGIC_type_cv 26 |
472 | #define CORO_MAGIC_type_cv 26 |
455 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
473 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
456 | |
474 | |
457 | #define CORO_MAGIC_NN(sv, type) \ |
475 | #define CORO_MAGIC_NN(sv, type) \ |
458 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
476 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
459 | ? SvMAGIC (sv) \ |
477 | ? SvMAGIC (sv) \ |
460 | : mg_find (sv, type)) |
478 | : mg_find (sv, type)) |
461 | |
479 | |
462 | #define CORO_MAGIC(sv, type) \ |
480 | #define CORO_MAGIC(sv, type) \ |
463 | (expect_true (SvMAGIC (sv)) \ |
481 | (ecb_expect_true (SvMAGIC (sv)) \ |
464 | ? CORO_MAGIC_NN (sv, type) \ |
482 | ? CORO_MAGIC_NN (sv, type) \ |
465 | : 0) |
483 | : 0) |
466 | |
484 | |
467 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
485 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
468 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
486 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
469 | |
487 | |
470 | INLINE struct coro * |
488 | ecb_inline MAGIC * |
|
|
489 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
490 | { |
|
|
491 | MAGIC *mg; |
|
|
492 | |
|
|
493 | if (ecb_expect_true ( |
|
|
494 | SvTYPE (coro) == SVt_PVHV |
|
|
495 | && (mg = CORO_MAGIC_state (coro)) |
|
|
496 | && mg->mg_virtual == &coro_state_vtbl |
|
|
497 | )) |
|
|
498 | return mg; |
|
|
499 | |
|
|
500 | return 0; |
|
|
501 | } |
|
|
502 | |
|
|
503 | ecb_inline struct coro * |
471 | SvSTATE_ (pTHX_ SV *coro) |
504 | SvSTATE_ (pTHX_ SV *coro) |
472 | { |
505 | { |
473 | HV *stash; |
|
|
474 | MAGIC *mg; |
506 | MAGIC *mg; |
475 | |
507 | |
476 | if (SvROK (coro)) |
508 | if (SvROK (coro)) |
477 | coro = SvRV (coro); |
509 | coro = SvRV (coro); |
478 | |
510 | |
479 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
511 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
512 | if (!mg) |
480 | croak ("Coro::State object required"); |
513 | croak ("Coro::State object required"); |
481 | |
514 | |
482 | stash = SvSTASH (coro); |
|
|
483 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
484 | { |
|
|
485 | /* very slow, but rare, check */ |
|
|
486 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
487 | croak ("Coro::State object required"); |
|
|
488 | } |
|
|
489 | |
|
|
490 | mg = CORO_MAGIC_state (coro); |
|
|
491 | return (struct coro *)mg->mg_ptr; |
515 | return (struct coro *)mg->mg_ptr; |
492 | } |
516 | } |
493 | |
517 | |
494 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
518 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
495 | |
519 | |
… | |
… | |
498 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
522 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
499 | |
523 | |
500 | /*****************************************************************************/ |
524 | /*****************************************************************************/ |
501 | /* padlist management and caching */ |
525 | /* padlist management and caching */ |
502 | |
526 | |
503 | static AV * |
527 | ecb_inline AV * |
504 | coro_derive_padlist (pTHX_ CV *cv) |
528 | coro_derive_padlist (pTHX_ CV *cv) |
505 | { |
529 | { |
506 | AV *padlist = CvPADLIST (cv); |
530 | AV *padlist = CvPADLIST (cv); |
507 | AV *newpadlist, *newpad; |
531 | AV *newpadlist, *newpad; |
508 | |
532 | |
… | |
… | |
520 | av_store (newpadlist, 1, (SV *)newpad); |
544 | av_store (newpadlist, 1, (SV *)newpad); |
521 | |
545 | |
522 | return newpadlist; |
546 | return newpadlist; |
523 | } |
547 | } |
524 | |
548 | |
525 | static void |
549 | ecb_inline void |
526 | free_padlist (pTHX_ AV *padlist) |
550 | free_padlist (pTHX_ AV *padlist) |
527 | { |
551 | { |
528 | /* may be during global destruction */ |
552 | /* may be during global destruction */ |
529 | if (!IN_DESTRUCT) |
553 | if (!IN_DESTRUCT) |
530 | { |
554 | { |
… | |
… | |
573 | 0, 0, 0, 0, |
597 | 0, 0, 0, 0, |
574 | coro_cv_free |
598 | coro_cv_free |
575 | }; |
599 | }; |
576 | |
600 | |
577 | /* the next two functions merely cache the padlists */ |
601 | /* the next two functions merely cache the padlists */ |
578 | static void |
602 | ecb_inline void |
579 | get_padlist (pTHX_ CV *cv) |
603 | get_padlist (pTHX_ CV *cv) |
580 | { |
604 | { |
581 | MAGIC *mg = CORO_MAGIC_cv (cv); |
605 | MAGIC *mg = CORO_MAGIC_cv (cv); |
582 | AV *av; |
606 | AV *av; |
583 | |
607 | |
584 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
608 | if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
585 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
609 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
586 | else |
610 | else |
587 | { |
611 | { |
588 | #if CORO_PREFER_PERL_FUNCTIONS |
612 | #if CORO_PREFER_PERL_FUNCTIONS |
589 | /* this is probably cleaner? but also slower! */ |
613 | /* this is probably cleaner? but also slower! */ |
… | |
… | |
596 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
620 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
597 | #endif |
621 | #endif |
598 | } |
622 | } |
599 | } |
623 | } |
600 | |
624 | |
601 | static void |
625 | ecb_inline void |
602 | put_padlist (pTHX_ CV *cv) |
626 | put_padlist (pTHX_ CV *cv) |
603 | { |
627 | { |
604 | MAGIC *mg = CORO_MAGIC_cv (cv); |
628 | MAGIC *mg = CORO_MAGIC_cv (cv); |
605 | AV *av; |
629 | AV *av; |
606 | |
630 | |
607 | if (expect_false (!mg)) |
631 | if (ecb_expect_false (!mg)) |
608 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
632 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
609 | |
633 | |
610 | av = (AV *)mg->mg_obj; |
634 | av = (AV *)mg->mg_obj; |
611 | |
635 | |
612 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
636 | if (ecb_expect_false (AvFILLp (av) >= AvMAX (av))) |
613 | av_extend (av, AvFILLp (av) + 1); |
637 | av_extend (av, AvFILLp (av) + 1); |
614 | |
638 | |
615 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
639 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
616 | } |
640 | } |
617 | |
641 | |
618 | /** load & save, init *******************************************************/ |
642 | /** load & save, init *******************************************************/ |
619 | |
643 | |
|
|
644 | ecb_inline void |
|
|
645 | swap_sv (SV *a, SV *b) |
|
|
646 | { |
|
|
647 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
648 | SV tmp; |
|
|
649 | |
|
|
650 | /* swap sv_any */ |
|
|
651 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
652 | |
|
|
653 | /* swap sv_flags */ |
|
|
654 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
655 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
656 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
657 | |
|
|
658 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
659 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
660 | * is much faster, so no quarrels here. alternatively, we could |
|
|
661 | * sv_upgrade to avoid this. |
|
|
662 | */ |
|
|
663 | { |
|
|
664 | /* swap sv_u */ |
|
|
665 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
666 | |
|
|
667 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
668 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
669 | */ |
|
|
670 | #define svany_in_head(type) \ |
|
|
671 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
672 | |
|
|
673 | if (svany_in_head (SvTYPE (a))) |
|
|
674 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
675 | |
|
|
676 | if (svany_in_head (SvTYPE (b))) |
|
|
677 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
678 | } |
|
|
679 | #endif |
|
|
680 | } |
|
|
681 | |
620 | /* swap sv heads, at least logically */ |
682 | /* swap sv heads, at least logically */ |
621 | static void |
683 | static void |
622 | swap_svs (pTHX_ Coro__State c) |
684 | swap_svs (pTHX_ Coro__State c) |
623 | { |
685 | { |
624 | int i; |
686 | int i; |
625 | |
687 | |
626 | for (i = 0; i <= AvFILLp (c->swap_sv); ) |
688 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
627 | { |
689 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
628 | SV *a = AvARRAY (c->swap_sv)[i++]; |
|
|
629 | SV *b = AvARRAY (c->swap_sv)[i++]; |
|
|
630 | |
|
|
631 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
632 | SV tmp; |
|
|
633 | |
|
|
634 | /* swap sv_any */ |
|
|
635 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
636 | |
|
|
637 | /* swap sv_flags */ |
|
|
638 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
639 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
640 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
641 | |
|
|
642 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
643 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
|
|
644 | * much faster, so no quarrels here. alternatively, we could |
|
|
645 | * sv_upgrade to avoid this. |
|
|
646 | */ |
|
|
647 | { |
|
|
648 | /* swap sv_u */ |
|
|
649 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
650 | |
|
|
651 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
652 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
653 | */ |
|
|
654 | #define svany_in_head(type) \ |
|
|
655 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
656 | |
|
|
657 | if (svany_in_head (SvTYPE (a))) |
|
|
658 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
659 | |
|
|
660 | if (svany_in_head (SvTYPE (b))) |
|
|
661 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
662 | } |
|
|
663 | #endif |
|
|
664 | } |
|
|
665 | } |
690 | } |
666 | |
691 | |
667 | #define SWAP_SVS(coro) \ |
692 | #define SWAP_SVS(coro) \ |
668 | if (expect_false ((coro)->swap_sv)) \ |
693 | if (ecb_expect_false ((coro)->swap_sv)) \ |
669 | swap_svs (aTHX_ (coro)) |
694 | swap_svs (aTHX_ (coro)) |
670 | |
695 | |
671 | static void |
696 | static void |
672 | on_enterleave_call (pTHX_ SV *cb); |
697 | on_enterleave_call (pTHX_ SV *cb); |
673 | |
698 | |
… | |
… | |
677 | perl_slots *slot = c->slot; |
702 | perl_slots *slot = c->slot; |
678 | c->slot = 0; |
703 | c->slot = 0; |
679 | |
704 | |
680 | PL_mainstack = c->mainstack; |
705 | PL_mainstack = c->mainstack; |
681 | |
706 | |
682 | GvSV (PL_defgv) = slot->defsv; |
707 | #if CORO_JIT |
683 | GvAV (PL_defgv) = slot->defav; |
708 | load_perl_slots (slot); |
684 | GvSV (PL_errgv) = slot->errsv; |
709 | #else |
685 | GvSV (irsgv) = slot->irsgv; |
|
|
686 | GvHV (PL_hintgv) = slot->hinthv; |
|
|
687 | |
|
|
688 | #define VAR(name,type) PL_ ## name = slot->name; |
710 | #define VARx(name,expr,type) expr = slot->name; |
689 | # include "state.h" |
711 | #include "state.h" |
690 | #undef VAR |
712 | #endif |
691 | |
713 | |
692 | { |
714 | { |
693 | dSP; |
715 | dSP; |
694 | |
716 | |
695 | CV *cv; |
717 | CV *cv; |
696 | |
718 | |
697 | /* now do the ugly restore mess */ |
719 | /* now do the ugly restore mess */ |
698 | while (expect_true (cv = (CV *)POPs)) |
720 | while (ecb_expect_true (cv = (CV *)POPs)) |
699 | { |
721 | { |
700 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
722 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
701 | CvDEPTH (cv) = PTR2IV (POPs); |
723 | CvDEPTH (cv) = PTR2IV (POPs); |
702 | CvPADLIST (cv) = (AV *)POPs; |
724 | CvPADLIST (cv) = (AV *)POPs; |
703 | } |
725 | } |
… | |
… | |
706 | } |
728 | } |
707 | |
729 | |
708 | slf_frame = c->slf_frame; |
730 | slf_frame = c->slf_frame; |
709 | CORO_THROW = c->except; |
731 | CORO_THROW = c->except; |
710 | |
732 | |
711 | if (expect_false (enable_times)) |
733 | if (ecb_expect_false (enable_times)) |
712 | { |
734 | { |
713 | if (expect_false (!times_valid)) |
735 | if (ecb_expect_false (!times_valid)) |
714 | coro_times_update (); |
736 | coro_times_update (); |
715 | |
737 | |
716 | coro_times_sub (c); |
738 | coro_times_sub (c); |
717 | } |
739 | } |
718 | |
740 | |
719 | if (expect_false (c->on_enter)) |
741 | if (ecb_expect_false (c->on_enter)) |
720 | { |
742 | { |
721 | int i; |
743 | int i; |
722 | |
744 | |
723 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
745 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
724 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
746 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
… | |
… | |
730 | static void |
752 | static void |
731 | save_perl (pTHX_ Coro__State c) |
753 | save_perl (pTHX_ Coro__State c) |
732 | { |
754 | { |
733 | SWAP_SVS (c); |
755 | SWAP_SVS (c); |
734 | |
756 | |
735 | if (expect_false (c->on_leave)) |
757 | if (ecb_expect_false (c->on_leave)) |
736 | { |
758 | { |
737 | int i; |
759 | int i; |
738 | |
760 | |
739 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
761 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
740 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
762 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
741 | } |
763 | } |
742 | |
764 | |
743 | times_valid = 0; |
765 | times_valid = 0; |
744 | |
766 | |
745 | if (expect_false (enable_times)) |
767 | if (ecb_expect_false (enable_times)) |
746 | { |
768 | { |
747 | coro_times_update (); times_valid = 1; |
769 | coro_times_update (); times_valid = 1; |
748 | coro_times_add (c); |
770 | coro_times_add (c); |
749 | } |
771 | } |
750 | |
772 | |
… | |
… | |
764 | |
786 | |
765 | XPUSHs (Nullsv); |
787 | XPUSHs (Nullsv); |
766 | /* this loop was inspired by pp_caller */ |
788 | /* this loop was inspired by pp_caller */ |
767 | for (;;) |
789 | for (;;) |
768 | { |
790 | { |
769 | while (expect_true (cxix >= 0)) |
791 | while (ecb_expect_true (cxix >= 0)) |
770 | { |
792 | { |
771 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
793 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
772 | |
794 | |
773 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
795 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
774 | { |
796 | { |
775 | CV *cv = cx->blk_sub.cv; |
797 | CV *cv = cx->blk_sub.cv; |
776 | |
798 | |
777 | if (expect_true (CvDEPTH (cv))) |
799 | if (ecb_expect_true (CvDEPTH (cv))) |
778 | { |
800 | { |
779 | EXTEND (SP, 3); |
801 | EXTEND (SP, 3); |
780 | PUSHs ((SV *)CvPADLIST (cv)); |
802 | PUSHs ((SV *)CvPADLIST (cv)); |
781 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
803 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
782 | PUSHs ((SV *)cv); |
804 | PUSHs ((SV *)cv); |
… | |
… | |
785 | get_padlist (aTHX_ cv); |
807 | get_padlist (aTHX_ cv); |
786 | } |
808 | } |
787 | } |
809 | } |
788 | } |
810 | } |
789 | |
811 | |
790 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
812 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
791 | break; |
813 | break; |
792 | |
814 | |
793 | top_si = top_si->si_prev; |
815 | top_si = top_si->si_prev; |
794 | ccstk = top_si->si_cxstack; |
816 | ccstk = top_si->si_cxstack; |
795 | cxix = top_si->si_cxix; |
817 | cxix = top_si->si_cxix; |
… | |
… | |
797 | |
819 | |
798 | PUTBACK; |
820 | PUTBACK; |
799 | } |
821 | } |
800 | |
822 | |
801 | /* allocate some space on the context stack for our purposes */ |
823 | /* allocate some space on the context stack for our purposes */ |
802 | /* we manually unroll here, as usually 2 slots is enough */ |
824 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
803 | if (SLOT_COUNT >= 1) CXINC; |
|
|
804 | if (SLOT_COUNT >= 2) CXINC; |
|
|
805 | if (SLOT_COUNT >= 3) CXINC; |
|
|
806 | { |
825 | { |
807 | unsigned int i; |
826 | unsigned int i; |
|
|
827 | |
808 | for (i = 3; i < SLOT_COUNT; ++i) |
828 | for (i = 0; i < SLOT_COUNT; ++i) |
809 | CXINC; |
829 | CXINC; |
810 | } |
830 | |
811 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
831 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
832 | } |
812 | |
833 | |
813 | c->mainstack = PL_mainstack; |
834 | c->mainstack = PL_mainstack; |
814 | |
835 | |
815 | { |
836 | { |
816 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
837 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
817 | |
838 | |
818 | slot->defav = GvAV (PL_defgv); |
839 | #if CORO_JIT |
819 | slot->defsv = DEFSV; |
840 | save_perl_slots (slot); |
820 | slot->errsv = ERRSV; |
841 | #else |
821 | slot->irsgv = GvSV (irsgv); |
|
|
822 | slot->hinthv = GvHV (PL_hintgv); |
|
|
823 | |
|
|
824 | #define VAR(name,type) slot->name = PL_ ## name; |
842 | #define VARx(name,expr,type) slot->name = expr; |
825 | # include "state.h" |
843 | #include "state.h" |
826 | #undef VAR |
844 | #endif |
827 | } |
845 | } |
828 | } |
846 | } |
829 | |
847 | |
830 | /* |
848 | /* |
831 | * allocate various perl stacks. This is almost an exact copy |
849 | * allocate various perl stacks. This is almost an exact copy |
… | |
… | |
837 | # define coro_init_stacks(thx) init_stacks () |
855 | # define coro_init_stacks(thx) init_stacks () |
838 | #else |
856 | #else |
839 | static void |
857 | static void |
840 | coro_init_stacks (pTHX) |
858 | coro_init_stacks (pTHX) |
841 | { |
859 | { |
842 | PL_curstackinfo = new_stackinfo(32, 8); |
860 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
843 | PL_curstackinfo->si_type = PERLSI_MAIN; |
861 | PL_curstackinfo->si_type = PERLSI_MAIN; |
844 | PL_curstack = PL_curstackinfo->si_stack; |
862 | PL_curstack = PL_curstackinfo->si_stack; |
845 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
863 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
846 | |
864 | |
847 | PL_stack_base = AvARRAY(PL_curstack); |
865 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
862 | #endif |
880 | #endif |
863 | |
881 | |
864 | New(54,PL_scopestack,8,I32); |
882 | New(54,PL_scopestack,8,I32); |
865 | PL_scopestack_ix = 0; |
883 | PL_scopestack_ix = 0; |
866 | PL_scopestack_max = 8; |
884 | PL_scopestack_max = 8; |
|
|
885 | #if HAS_SCOPESTACK_NAME |
|
|
886 | New(54,PL_scopestack_name,8,const char*); |
|
|
887 | #endif |
867 | |
888 | |
868 | New(54,PL_savestack,24,ANY); |
889 | New(54,PL_savestack,24,ANY); |
869 | PL_savestack_ix = 0; |
890 | PL_savestack_ix = 0; |
870 | PL_savestack_max = 24; |
891 | PL_savestack_max = 24; |
871 | |
892 | |
… | |
… | |
899 | } |
920 | } |
900 | |
921 | |
901 | Safefree (PL_tmps_stack); |
922 | Safefree (PL_tmps_stack); |
902 | Safefree (PL_markstack); |
923 | Safefree (PL_markstack); |
903 | Safefree (PL_scopestack); |
924 | Safefree (PL_scopestack); |
|
|
925 | #if HAS_SCOPESTACK_NAME |
|
|
926 | Safefree (PL_scopestack_name); |
|
|
927 | #endif |
904 | Safefree (PL_savestack); |
928 | Safefree (PL_savestack); |
905 | #if !PERL_VERSION_ATLEAST (5,10,0) |
929 | #if !PERL_VERSION_ATLEAST (5,10,0) |
906 | Safefree (PL_retstack); |
930 | Safefree (PL_retstack); |
907 | #endif |
931 | #endif |
908 | } |
932 | } |
… | |
… | |
954 | #endif |
978 | #endif |
955 | |
979 | |
956 | /* |
980 | /* |
957 | * This overrides the default magic get method of %SIG elements. |
981 | * This overrides the default magic get method of %SIG elements. |
958 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
982 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
959 | * and instead of trying to save and restore the hash elements, we just provide |
983 | * and instead of trying to save and restore the hash elements (extremely slow), |
960 | * readback here. |
984 | * we just provide our own readback here. |
961 | */ |
985 | */ |
962 | static int |
986 | static int ecb_cold |
963 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
987 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
964 | { |
988 | { |
965 | const char *s = MgPV_nolen_const (mg); |
989 | const char *s = MgPV_nolen_const (mg); |
966 | |
990 | |
967 | if (*s == '_') |
991 | if (*s == '_') |
… | |
… | |
971 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
995 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
972 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
996 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
973 | |
997 | |
974 | if (svp) |
998 | if (svp) |
975 | { |
999 | { |
976 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
1000 | SV *ssv; |
|
|
1001 | |
|
|
1002 | if (!*svp) |
|
|
1003 | ssv = &PL_sv_undef; |
|
|
1004 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1005 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1006 | else |
|
|
1007 | ssv = *svp; |
|
|
1008 | |
|
|
1009 | sv_setsv (sv, ssv); |
977 | return 0; |
1010 | return 0; |
978 | } |
1011 | } |
979 | } |
1012 | } |
980 | |
1013 | |
981 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
1014 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
982 | } |
1015 | } |
983 | |
1016 | |
984 | static int |
1017 | static int ecb_cold |
985 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
1018 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
986 | { |
1019 | { |
987 | const char *s = MgPV_nolen_const (mg); |
1020 | const char *s = MgPV_nolen_const (mg); |
988 | |
1021 | |
989 | if (*s == '_') |
1022 | if (*s == '_') |
… | |
… | |
1003 | } |
1036 | } |
1004 | |
1037 | |
1005 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1038 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1006 | } |
1039 | } |
1007 | |
1040 | |
1008 | static int |
1041 | static int ecb_cold |
1009 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1042 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1010 | { |
1043 | { |
1011 | const char *s = MgPV_nolen_const (mg); |
1044 | const char *s = MgPV_nolen_const (mg); |
1012 | |
1045 | |
1013 | if (*s == '_') |
1046 | if (*s == '_') |
… | |
… | |
1048 | return 1; |
1081 | return 1; |
1049 | } |
1082 | } |
1050 | |
1083 | |
1051 | static UNOP init_perl_op; |
1084 | static UNOP init_perl_op; |
1052 | |
1085 | |
1053 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
1086 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
1054 | init_perl (pTHX_ struct coro *coro) |
1087 | init_perl (pTHX_ struct coro *coro) |
1055 | { |
1088 | { |
1056 | /* |
1089 | /* |
1057 | * emulate part of the perl startup here. |
1090 | * emulate part of the perl startup here. |
1058 | */ |
1091 | */ |
… | |
… | |
1073 | PL_parser = 0; |
1106 | PL_parser = 0; |
1074 | #endif |
1107 | #endif |
1075 | PL_hints = 0; |
1108 | PL_hints = 0; |
1076 | |
1109 | |
1077 | /* recreate the die/warn hooks */ |
1110 | /* recreate the die/warn hooks */ |
1078 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1111 | PL_diehook = SvREFCNT_inc (rv_diehook); |
1079 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1112 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
1080 | |
1113 | |
1081 | GvSV (PL_defgv) = newSV (0); |
1114 | GvSV (PL_defgv) = newSV (0); |
1082 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1115 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1083 | GvSV (PL_errgv) = newSV (0); |
1116 | GvSV (PL_errgv) = newSV (0); |
1084 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1117 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
… | |
… | |
1105 | /* this newly created coroutine might be run on an existing cctx which most |
1138 | /* this newly created coroutine might be run on an existing cctx which most |
1106 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1139 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1107 | */ |
1140 | */ |
1108 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1141 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1109 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
1142 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1143 | slf_frame.destroy = 0; |
1110 | |
1144 | |
1111 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
1145 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
1112 | init_perl_op.op_next = PL_op; |
1146 | init_perl_op.op_next = PL_op; |
1113 | init_perl_op.op_type = OP_ENTERSUB; |
1147 | init_perl_op.op_type = OP_ENTERSUB; |
1114 | init_perl_op.op_ppaddr = pp_slf; |
1148 | init_perl_op.op_ppaddr = pp_slf; |
… | |
… | |
1119 | /* copy throw, in case it was set before init_perl */ |
1153 | /* copy throw, in case it was set before init_perl */ |
1120 | CORO_THROW = coro->except; |
1154 | CORO_THROW = coro->except; |
1121 | |
1155 | |
1122 | SWAP_SVS (coro); |
1156 | SWAP_SVS (coro); |
1123 | |
1157 | |
1124 | if (expect_false (enable_times)) |
1158 | if (ecb_expect_false (enable_times)) |
1125 | { |
1159 | { |
1126 | coro_times_update (); |
1160 | coro_times_update (); |
1127 | coro_times_sub (coro); |
1161 | coro_times_sub (coro); |
1128 | } |
1162 | } |
1129 | } |
1163 | } |
… | |
… | |
1153 | destroy_perl (pTHX_ struct coro *coro) |
1187 | destroy_perl (pTHX_ struct coro *coro) |
1154 | { |
1188 | { |
1155 | SV *svf [9]; |
1189 | SV *svf [9]; |
1156 | |
1190 | |
1157 | { |
1191 | { |
|
|
1192 | SV *old_current = SvRV (coro_current); |
1158 | struct coro *current = SvSTATE_current; |
1193 | struct coro *current = SvSTATE (old_current); |
1159 | |
1194 | |
1160 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
1195 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
1161 | |
1196 | |
1162 | save_perl (aTHX_ current); |
1197 | save_perl (aTHX_ current); |
|
|
1198 | |
|
|
1199 | /* this will cause transfer_check to croak on block*/ |
|
|
1200 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1201 | |
1163 | load_perl (aTHX_ coro); |
1202 | load_perl (aTHX_ coro); |
1164 | |
1203 | |
1165 | coro_unwind_stacks (aTHX); |
1204 | coro_unwind_stacks (aTHX); |
1166 | coro_destruct_stacks (aTHX); |
|
|
1167 | |
1205 | |
1168 | /* restore swapped sv's */ |
1206 | /* restore swapped sv's */ |
1169 | SWAP_SVS (coro); |
1207 | SWAP_SVS (coro); |
1170 | |
1208 | |
|
|
1209 | coro_destruct_stacks (aTHX); |
|
|
1210 | |
1171 | // now save some sv's to be free'd later |
1211 | /* now save some sv's to be free'd later */ |
1172 | svf [0] = GvSV (PL_defgv); |
1212 | svf [0] = GvSV (PL_defgv); |
1173 | svf [1] = (SV *)GvAV (PL_defgv); |
1213 | svf [1] = (SV *)GvAV (PL_defgv); |
1174 | svf [2] = GvSV (PL_errgv); |
1214 | svf [2] = GvSV (PL_errgv); |
1175 | svf [3] = (SV *)PL_defoutgv; |
1215 | svf [3] = (SV *)PL_defoutgv; |
1176 | svf [4] = PL_rs; |
1216 | svf [4] = PL_rs; |
… | |
… | |
1178 | svf [6] = (SV *)GvHV (PL_hintgv); |
1218 | svf [6] = (SV *)GvHV (PL_hintgv); |
1179 | svf [7] = PL_diehook; |
1219 | svf [7] = PL_diehook; |
1180 | svf [8] = PL_warnhook; |
1220 | svf [8] = PL_warnhook; |
1181 | assert (9 == sizeof (svf) / sizeof (*svf)); |
1221 | assert (9 == sizeof (svf) / sizeof (*svf)); |
1182 | |
1222 | |
|
|
1223 | SvRV_set (coro_current, old_current); |
|
|
1224 | |
1183 | load_perl (aTHX_ current); |
1225 | load_perl (aTHX_ current); |
1184 | } |
1226 | } |
1185 | |
1227 | |
1186 | { |
1228 | { |
1187 | unsigned int i; |
1229 | unsigned int i; |
… | |
… | |
1194 | SvREFCNT_dec (coro->invoke_cb); |
1236 | SvREFCNT_dec (coro->invoke_cb); |
1195 | SvREFCNT_dec (coro->invoke_av); |
1237 | SvREFCNT_dec (coro->invoke_av); |
1196 | } |
1238 | } |
1197 | } |
1239 | } |
1198 | |
1240 | |
1199 | INLINE void |
1241 | ecb_inline void |
1200 | free_coro_mortal (pTHX) |
1242 | free_coro_mortal (pTHX) |
1201 | { |
1243 | { |
1202 | if (expect_true (coro_mortal)) |
1244 | if (ecb_expect_true (coro_mortal)) |
1203 | { |
1245 | { |
1204 | SvREFCNT_dec (coro_mortal); |
1246 | SvREFCNT_dec ((SV *)coro_mortal); |
1205 | coro_mortal = 0; |
1247 | coro_mortal = 0; |
1206 | } |
1248 | } |
1207 | } |
1249 | } |
1208 | |
1250 | |
1209 | static int |
1251 | static int |
… | |
… | |
1342 | |
1384 | |
1343 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
1385 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
1344 | } |
1386 | } |
1345 | |
1387 | |
1346 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1388 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1347 | static void NOINLINE |
1389 | static void ecb_noinline |
1348 | cctx_prepare (pTHX) |
1390 | cctx_prepare (pTHX) |
1349 | { |
1391 | { |
1350 | PL_top_env = &PL_start_env; |
1392 | PL_top_env = &PL_start_env; |
1351 | |
1393 | |
1352 | if (cctx_current->flags & CC_TRACE) |
1394 | if (cctx_current->flags & CC_TRACE) |
… | |
… | |
1363 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1405 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1364 | slf_frame.check = slf_check_set_stacklevel; |
1406 | slf_frame.check = slf_check_set_stacklevel; |
1365 | } |
1407 | } |
1366 | |
1408 | |
1367 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1409 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1368 | INLINE void |
1410 | ecb_inline void |
1369 | transfer_tail (pTHX) |
1411 | transfer_tail (pTHX) |
1370 | { |
1412 | { |
1371 | free_coro_mortal (aTHX); |
1413 | free_coro_mortal (aTHX); |
|
|
1414 | } |
|
|
1415 | |
|
|
1416 | /* try to exit the same way perl's main function would do */ |
|
|
1417 | /* we do not bother resetting the environment or other things *7 |
|
|
1418 | /* that are not, uhm, essential */ |
|
|
1419 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1420 | static void ecb_noinline ecb_cold |
|
|
1421 | perlish_exit (pTHX) |
|
|
1422 | { |
|
|
1423 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1424 | perl_free (PL_curinterp); |
|
|
1425 | exit (exitstatus); |
1372 | } |
1426 | } |
1373 | |
1427 | |
1374 | /* |
1428 | /* |
1375 | * this is a _very_ stripped down perl interpreter ;) |
1429 | * this is a _very_ stripped down perl interpreter ;) |
1376 | */ |
1430 | */ |
… | |
… | |
1405 | */ |
1459 | */ |
1406 | |
1460 | |
1407 | /* |
1461 | /* |
1408 | * If perl-run returns we assume exit() was being called or the coro |
1462 | * If perl-run returns we assume exit() was being called or the coro |
1409 | * fell off the end, which seems to be the only valid (non-bug) |
1463 | * fell off the end, which seems to be the only valid (non-bug) |
1410 | * reason for perl_run to return. We try to exit by jumping to the |
1464 | * reason for perl_run to return. We try to mimic whatever perl is normally |
1411 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1465 | * doing in that case. YMMV. |
1412 | * coroutine as Coro has no such concept. |
|
|
1413 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1414 | * that backend are too broken to do it in a standards-compliant way. |
|
|
1415 | */ |
1466 | */ |
1416 | PL_top_env = main_top_env; |
1467 | perlish_exit (aTHX); |
1417 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1418 | } |
1468 | } |
1419 | } |
1469 | } |
1420 | |
1470 | |
1421 | static coro_cctx * |
1471 | static coro_cctx * |
1422 | cctx_new () |
1472 | cctx_new (void) |
1423 | { |
1473 | { |
1424 | coro_cctx *cctx; |
1474 | coro_cctx *cctx; |
1425 | |
1475 | |
1426 | ++cctx_count; |
1476 | ++cctx_count; |
1427 | New (0, cctx, 1, coro_cctx); |
1477 | New (0, cctx, 1, coro_cctx); |
… | |
… | |
1433 | return cctx; |
1483 | return cctx; |
1434 | } |
1484 | } |
1435 | |
1485 | |
1436 | /* create a new cctx only suitable as source */ |
1486 | /* create a new cctx only suitable as source */ |
1437 | static coro_cctx * |
1487 | static coro_cctx * |
1438 | cctx_new_empty () |
1488 | cctx_new_empty (void) |
1439 | { |
1489 | { |
1440 | coro_cctx *cctx = cctx_new (); |
1490 | coro_cctx *cctx = cctx_new (); |
1441 | |
1491 | |
1442 | cctx->sptr = 0; |
1492 | cctx->sptr = 0; |
1443 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
1493 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
… | |
… | |
1445 | return cctx; |
1495 | return cctx; |
1446 | } |
1496 | } |
1447 | |
1497 | |
1448 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1498 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1449 | static coro_cctx * |
1499 | static coro_cctx * |
1450 | cctx_new_run () |
1500 | cctx_new_run (void) |
1451 | { |
1501 | { |
1452 | coro_cctx *cctx = cctx_new (); |
1502 | coro_cctx *cctx = cctx_new (); |
1453 | void *stack_start; |
1503 | void *stack_start; |
1454 | size_t stack_size; |
1504 | size_t stack_size; |
1455 | |
1505 | |
1456 | #if HAVE_MMAP |
1506 | #if HAVE_MMAP |
1457 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1507 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1458 | /* mmap supposedly does allocate-on-write for us */ |
1508 | /* mmap supposedly does allocate-on-write for us */ |
1459 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1509 | cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0); |
1460 | |
1510 | |
1461 | if (cctx->sptr != (void *)-1) |
1511 | if (cctx->sptr != (void *)-1) |
1462 | { |
1512 | { |
1463 | #if CORO_STACKGUARD |
1513 | #if CORO_STACKGUARD |
1464 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1514 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
… | |
… | |
1496 | cctx_destroy (coro_cctx *cctx) |
1546 | cctx_destroy (coro_cctx *cctx) |
1497 | { |
1547 | { |
1498 | if (!cctx) |
1548 | if (!cctx) |
1499 | return; |
1549 | return; |
1500 | |
1550 | |
1501 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
1551 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
1502 | |
1552 | |
1503 | --cctx_count; |
1553 | --cctx_count; |
1504 | coro_destroy (&cctx->cctx); |
1554 | coro_destroy (&cctx->cctx); |
1505 | |
1555 | |
1506 | /* coro_transfer creates new, empty cctx's */ |
1556 | /* coro_transfer creates new, empty cctx's */ |
… | |
… | |
1525 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1575 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1526 | |
1576 | |
1527 | static coro_cctx * |
1577 | static coro_cctx * |
1528 | cctx_get (pTHX) |
1578 | cctx_get (pTHX) |
1529 | { |
1579 | { |
1530 | while (expect_true (cctx_first)) |
1580 | while (ecb_expect_true (cctx_first)) |
1531 | { |
1581 | { |
1532 | coro_cctx *cctx = cctx_first; |
1582 | coro_cctx *cctx = cctx_first; |
1533 | cctx_first = cctx->next; |
1583 | cctx_first = cctx->next; |
1534 | --cctx_idle; |
1584 | --cctx_idle; |
1535 | |
1585 | |
1536 | if (expect_true (!CCTX_EXPIRED (cctx))) |
1586 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
1537 | return cctx; |
1587 | return cctx; |
1538 | |
1588 | |
1539 | cctx_destroy (cctx); |
1589 | cctx_destroy (cctx); |
1540 | } |
1590 | } |
1541 | |
1591 | |
… | |
… | |
1546 | cctx_put (coro_cctx *cctx) |
1596 | cctx_put (coro_cctx *cctx) |
1547 | { |
1597 | { |
1548 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1598 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1549 | |
1599 | |
1550 | /* free another cctx if overlimit */ |
1600 | /* free another cctx if overlimit */ |
1551 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1601 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
1552 | { |
1602 | { |
1553 | coro_cctx *first = cctx_first; |
1603 | coro_cctx *first = cctx_first; |
1554 | cctx_first = first->next; |
1604 | cctx_first = first->next; |
1555 | --cctx_idle; |
1605 | --cctx_idle; |
1556 | |
1606 | |
… | |
… | |
1567 | static void |
1617 | static void |
1568 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1618 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1569 | { |
1619 | { |
1570 | /* TODO: throwing up here is considered harmful */ |
1620 | /* TODO: throwing up here is considered harmful */ |
1571 | |
1621 | |
1572 | if (expect_true (prev != next)) |
1622 | if (ecb_expect_true (prev != next)) |
1573 | { |
1623 | { |
1574 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1624 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1575 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1625 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1576 | |
1626 | |
1577 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1627 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1578 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1628 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1579 | |
1629 | |
1580 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1630 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1581 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1631 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
1582 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1632 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1583 | #endif |
1633 | #endif |
1584 | } |
1634 | } |
1585 | } |
1635 | } |
1586 | |
1636 | |
1587 | /* always use the TRANSFER macro */ |
1637 | /* always use the TRANSFER macro */ |
1588 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1638 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
1589 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1639 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1590 | { |
1640 | { |
1591 | dSTACKLEVEL; |
1641 | dSTACKLEVEL; |
1592 | |
1642 | |
1593 | /* sometimes transfer is only called to set idle_sp */ |
1643 | /* sometimes transfer is only called to set idle_sp */ |
1594 | if (expect_false (!prev)) |
1644 | if (ecb_expect_false (!prev)) |
1595 | { |
1645 | { |
1596 | cctx_current->idle_sp = STACKLEVEL; |
1646 | cctx_current->idle_sp = STACKLEVEL; |
1597 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1647 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1598 | } |
1648 | } |
1599 | else if (expect_true (prev != next)) |
1649 | else if (ecb_expect_true (prev != next)) |
1600 | { |
1650 | { |
1601 | coro_cctx *cctx_prev; |
1651 | coro_cctx *cctx_prev; |
1602 | |
1652 | |
1603 | if (expect_false (prev->flags & CF_NEW)) |
1653 | if (ecb_expect_false (prev->flags & CF_NEW)) |
1604 | { |
1654 | { |
1605 | /* create a new empty/source context */ |
1655 | /* create a new empty/source context */ |
1606 | prev->flags &= ~CF_NEW; |
1656 | prev->flags &= ~CF_NEW; |
1607 | prev->flags |= CF_RUNNING; |
1657 | prev->flags |= CF_RUNNING; |
1608 | } |
1658 | } |
… | |
… | |
1611 | next->flags |= CF_RUNNING; |
1661 | next->flags |= CF_RUNNING; |
1612 | |
1662 | |
1613 | /* first get rid of the old state */ |
1663 | /* first get rid of the old state */ |
1614 | save_perl (aTHX_ prev); |
1664 | save_perl (aTHX_ prev); |
1615 | |
1665 | |
1616 | if (expect_false (next->flags & CF_NEW)) |
1666 | if (ecb_expect_false (next->flags & CF_NEW)) |
1617 | { |
1667 | { |
1618 | /* need to start coroutine */ |
1668 | /* need to start coroutine */ |
1619 | next->flags &= ~CF_NEW; |
1669 | next->flags &= ~CF_NEW; |
1620 | /* setup coroutine call */ |
1670 | /* setup coroutine call */ |
1621 | init_perl (aTHX_ next); |
1671 | init_perl (aTHX_ next); |
1622 | } |
1672 | } |
1623 | else |
1673 | else |
1624 | load_perl (aTHX_ next); |
1674 | load_perl (aTHX_ next); |
1625 | |
1675 | |
1626 | /* possibly untie and reuse the cctx */ |
1676 | /* possibly untie and reuse the cctx */ |
1627 | if (expect_true ( |
1677 | if (ecb_expect_true ( |
1628 | cctx_current->idle_sp == STACKLEVEL |
1678 | cctx_current->idle_sp == STACKLEVEL |
1629 | && !(cctx_current->flags & CC_TRACE) |
1679 | && !(cctx_current->flags & CC_TRACE) |
1630 | && !force_cctx |
1680 | && !force_cctx |
1631 | )) |
1681 | )) |
1632 | { |
1682 | { |
1633 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1683 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1634 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1684 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1635 | |
1685 | |
1636 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1686 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1637 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1687 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1638 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1688 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
1639 | if (expect_true (!next->cctx)) |
1689 | if (ecb_expect_true (!next->cctx)) |
1640 | next->cctx = cctx_get (aTHX); |
1690 | next->cctx = cctx_get (aTHX); |
1641 | |
1691 | |
1642 | cctx_put (cctx_current); |
1692 | cctx_put (cctx_current); |
1643 | } |
1693 | } |
1644 | else |
1694 | else |
1645 | prev->cctx = cctx_current; |
1695 | prev->cctx = cctx_current; |
1646 | |
1696 | |
1647 | ++next->usecount; |
1697 | ++next->usecount; |
1648 | |
1698 | |
1649 | cctx_prev = cctx_current; |
1699 | cctx_prev = cctx_current; |
1650 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1700 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1651 | |
1701 | |
1652 | next->cctx = 0; |
1702 | next->cctx = 0; |
1653 | |
1703 | |
1654 | if (expect_false (cctx_prev != cctx_current)) |
1704 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1655 | { |
1705 | { |
1656 | cctx_prev->top_env = PL_top_env; |
1706 | cctx_prev->top_env = PL_top_env; |
1657 | PL_top_env = cctx_current->top_env; |
1707 | PL_top_env = cctx_current->top_env; |
1658 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1708 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1659 | } |
1709 | } |
… | |
… | |
1665 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1715 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1666 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1716 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1667 | |
1717 | |
1668 | /** high level stuff ********************************************************/ |
1718 | /** high level stuff ********************************************************/ |
1669 | |
1719 | |
|
|
1720 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1721 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1670 | static int |
1722 | static void |
|
|
1723 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1724 | |
|
|
1725 | static void |
1671 | coro_state_destroy (pTHX_ struct coro *coro) |
1726 | coro_state_destroy (pTHX_ struct coro *coro) |
1672 | { |
1727 | { |
1673 | if (coro->flags & CF_DESTROYED) |
1728 | if (coro->flags & CF_ZOMBIE) |
1674 | return 0; |
1729 | return; |
1675 | |
1730 | |
1676 | if (coro->on_destroy && !PL_dirty) |
|
|
1677 | coro->on_destroy (aTHX_ coro); |
1731 | slf_destroy (aTHX_ coro); |
1678 | |
1732 | |
1679 | coro->flags |= CF_DESTROYED; |
1733 | coro->flags |= CF_ZOMBIE; |
1680 | |
1734 | |
1681 | if (coro->flags & CF_READY) |
1735 | if (coro->flags & CF_READY) |
1682 | { |
1736 | { |
1683 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1737 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1684 | /* alternative: look through all ready queues and remove the coro */ |
1738 | /* alternative: look through all ready queues and remove the coro */ |
1685 | --coro_nready; |
1739 | --coro_nready; |
1686 | } |
1740 | } |
1687 | else |
1741 | else |
1688 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1742 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
|
|
1743 | |
|
|
1744 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1745 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1746 | if (coro == coro_first) coro_first = coro->next; |
1689 | |
1747 | |
1690 | if (coro->mainstack |
1748 | if (coro->mainstack |
1691 | && coro->mainstack != main_mainstack |
1749 | && coro->mainstack != main_mainstack |
1692 | && coro->slot |
1750 | && coro->slot |
1693 | && !PL_dirty) |
1751 | && !PL_dirty) |
1694 | destroy_perl (aTHX_ coro); |
1752 | destroy_perl (aTHX_ coro); |
1695 | |
1753 | |
1696 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1697 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1698 | if (coro == coro_first) coro_first = coro->next; |
|
|
1699 | |
|
|
1700 | cctx_destroy (coro->cctx); |
1754 | cctx_destroy (coro->cctx); |
1701 | SvREFCNT_dec (coro->startcv); |
1755 | SvREFCNT_dec (coro->startcv); |
1702 | SvREFCNT_dec (coro->args); |
1756 | SvREFCNT_dec (coro->args); |
1703 | SvREFCNT_dec (coro->swap_sv); |
1757 | SvREFCNT_dec (coro->swap_sv); |
1704 | SvREFCNT_dec (CORO_THROW); |
1758 | SvREFCNT_dec (CORO_THROW); |
1705 | |
1759 | |
1706 | return 1; |
1760 | coro_call_on_destroy (aTHX_ coro); |
|
|
1761 | |
|
|
1762 | /* more destruction mayhem in coro_state_free */ |
1707 | } |
1763 | } |
1708 | |
1764 | |
1709 | static int |
1765 | static int |
1710 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1766 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1711 | { |
1767 | { |
1712 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1768 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1713 | mg->mg_ptr = 0; |
1769 | mg->mg_ptr = 0; |
1714 | |
1770 | |
1715 | coro->hv = 0; |
|
|
1716 | |
|
|
1717 | if (--coro->refcnt < 0) |
|
|
1718 | { |
|
|
1719 | coro_state_destroy (aTHX_ coro); |
1771 | coro_state_destroy (aTHX_ coro); |
|
|
1772 | SvREFCNT_dec (coro->on_destroy); |
|
|
1773 | SvREFCNT_dec (coro->status); |
|
|
1774 | |
1720 | Safefree (coro); |
1775 | Safefree (coro); |
1721 | } |
|
|
1722 | |
1776 | |
1723 | return 0; |
1777 | return 0; |
1724 | } |
1778 | } |
1725 | |
1779 | |
1726 | static int |
1780 | static int ecb_cold |
1727 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1781 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1728 | { |
1782 | { |
1729 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1783 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1730 | |
1784 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1731 | ++coro->refcnt; |
1785 | mg->mg_ptr = 0; |
|
|
1786 | mg->mg_virtual = 0; |
1732 | |
1787 | |
1733 | return 0; |
1788 | return 0; |
1734 | } |
1789 | } |
1735 | |
1790 | |
1736 | static MGVTBL coro_state_vtbl = { |
1791 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1761 | TRANSFER (ta, 1); |
1816 | TRANSFER (ta, 1); |
1762 | } |
1817 | } |
1763 | |
1818 | |
1764 | /** Coro ********************************************************************/ |
1819 | /** Coro ********************************************************************/ |
1765 | |
1820 | |
1766 | INLINE void |
1821 | ecb_inline void |
1767 | coro_enq (pTHX_ struct coro *coro) |
1822 | coro_enq (pTHX_ struct coro *coro) |
1768 | { |
1823 | { |
1769 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1824 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1770 | |
1825 | |
1771 | SvREFCNT_inc_NN (coro->hv); |
1826 | SvREFCNT_inc_NN (coro->hv); |
… | |
… | |
1773 | coro->next_ready = 0; |
1828 | coro->next_ready = 0; |
1774 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
1829 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
1775 | ready [1] = coro; |
1830 | ready [1] = coro; |
1776 | } |
1831 | } |
1777 | |
1832 | |
1778 | INLINE struct coro * |
1833 | ecb_inline struct coro * |
1779 | coro_deq (pTHX) |
1834 | coro_deq (pTHX) |
1780 | { |
1835 | { |
1781 | int prio; |
1836 | int prio; |
1782 | |
1837 | |
1783 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1838 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1836 | { |
1891 | { |
1837 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1892 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1838 | } |
1893 | } |
1839 | |
1894 | |
1840 | /* expects to own a reference to next->hv */ |
1895 | /* expects to own a reference to next->hv */ |
1841 | INLINE void |
1896 | ecb_inline void |
1842 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1897 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1843 | { |
1898 | { |
1844 | SV *prev_sv = SvRV (coro_current); |
1899 | SV *prev_sv = SvRV (coro_current); |
1845 | |
1900 | |
1846 | ta->prev = SvSTATE_hv (prev_sv); |
1901 | ta->prev = SvSTATE_hv (prev_sv); |
… | |
… | |
1859 | { |
1914 | { |
1860 | for (;;) |
1915 | for (;;) |
1861 | { |
1916 | { |
1862 | struct coro *next = coro_deq (aTHX); |
1917 | struct coro *next = coro_deq (aTHX); |
1863 | |
1918 | |
1864 | if (expect_true (next)) |
1919 | if (ecb_expect_true (next)) |
1865 | { |
1920 | { |
1866 | /* cannot transfer to destroyed coros, skip and look for next */ |
1921 | /* cannot transfer to destroyed coros, skip and look for next */ |
1867 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
1922 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
1868 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
1923 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
1869 | else |
1924 | else |
1870 | { |
1925 | { |
1871 | next->flags &= ~CF_READY; |
1926 | next->flags &= ~CF_READY; |
1872 | --coro_nready; |
1927 | --coro_nready; |
… | |
… | |
1905 | } |
1960 | } |
1906 | } |
1961 | } |
1907 | } |
1962 | } |
1908 | } |
1963 | } |
1909 | |
1964 | |
1910 | INLINE void |
1965 | ecb_inline void |
1911 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1966 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1912 | { |
1967 | { |
1913 | api_ready (aTHX_ coro_current); |
1968 | api_ready (aTHX_ coro_current); |
1914 | prepare_schedule (aTHX_ ta); |
1969 | prepare_schedule (aTHX_ ta); |
1915 | } |
1970 | } |
1916 | |
1971 | |
1917 | INLINE void |
1972 | ecb_inline void |
1918 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1973 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1919 | { |
1974 | { |
1920 | SV *prev = SvRV (coro_current); |
1975 | SV *prev = SvRV (coro_current); |
1921 | |
1976 | |
1922 | if (coro_nready) |
1977 | if (coro_nready) |
… | |
… | |
1952 | { |
2007 | { |
1953 | struct coro_transfer_args ta; |
2008 | struct coro_transfer_args ta; |
1954 | |
2009 | |
1955 | prepare_cede (aTHX_ &ta); |
2010 | prepare_cede (aTHX_ &ta); |
1956 | |
2011 | |
1957 | if (expect_true (ta.prev != ta.next)) |
2012 | if (ecb_expect_true (ta.prev != ta.next)) |
1958 | { |
2013 | { |
1959 | TRANSFER (ta, 1); |
2014 | TRANSFER (ta, 1); |
1960 | return 1; |
2015 | return 1; |
1961 | } |
2016 | } |
1962 | else |
2017 | else |
… | |
… | |
2005 | coro->slot->runops = RUNOPS_DEFAULT; |
2060 | coro->slot->runops = RUNOPS_DEFAULT; |
2006 | } |
2061 | } |
2007 | } |
2062 | } |
2008 | |
2063 | |
2009 | static void |
2064 | static void |
|
|
2065 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2066 | { |
|
|
2067 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2068 | { |
|
|
2069 | dSP; |
|
|
2070 | |
|
|
2071 | if (gimme_v == G_SCALAR) |
|
|
2072 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2073 | else |
|
|
2074 | { |
|
|
2075 | int i; |
|
|
2076 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2077 | |
|
|
2078 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2079 | PUSHs (AvARRAY (av)[i]); |
|
|
2080 | } |
|
|
2081 | |
|
|
2082 | PUTBACK; |
|
|
2083 | } |
|
|
2084 | } |
|
|
2085 | |
|
|
2086 | static void |
|
|
2087 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2088 | { |
|
|
2089 | if (!coro->on_destroy) |
|
|
2090 | coro->on_destroy = newAV (); |
|
|
2091 | |
|
|
2092 | av_push (coro->on_destroy, cb); |
|
|
2093 | } |
|
|
2094 | |
|
|
2095 | static void |
|
|
2096 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2097 | { |
|
|
2098 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2099 | } |
|
|
2100 | |
|
|
2101 | static int |
|
|
2102 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2103 | { |
|
|
2104 | struct coro *coro = (struct coro *)frame->data; |
|
|
2105 | |
|
|
2106 | if (!coro->status) |
|
|
2107 | return 1; |
|
|
2108 | |
|
|
2109 | frame->destroy = 0; |
|
|
2110 | |
|
|
2111 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2112 | |
|
|
2113 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2114 | |
|
|
2115 | return 0; |
|
|
2116 | } |
|
|
2117 | |
|
|
2118 | static void |
|
|
2119 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2120 | { |
|
|
2121 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2122 | |
|
|
2123 | if (items > 1) |
|
|
2124 | croak ("join called with too many arguments"); |
|
|
2125 | |
|
|
2126 | if (coro->status) |
|
|
2127 | frame->prepare = prepare_nop; |
|
|
2128 | else |
|
|
2129 | { |
|
|
2130 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2131 | frame->prepare = prepare_schedule; |
|
|
2132 | } |
|
|
2133 | |
|
|
2134 | frame->check = slf_check_join; |
|
|
2135 | frame->destroy = slf_destroy_join; |
|
|
2136 | frame->data = (void *)coro; |
|
|
2137 | SvREFCNT_inc (coro->hv); |
|
|
2138 | } |
|
|
2139 | |
|
|
2140 | static void |
2010 | coro_call_on_destroy (pTHX_ struct coro *coro) |
2141 | coro_call_on_destroy (pTHX_ struct coro *coro) |
2011 | { |
2142 | { |
2012 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
2143 | AV *od = coro->on_destroy; |
2013 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
2014 | |
2144 | |
2015 | if (on_destroyp) |
2145 | if (!od) |
2016 | { |
2146 | return; |
2017 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
2018 | |
2147 | |
2019 | while (AvFILLp (on_destroy) >= 0) |
2148 | while (AvFILLp (od) >= 0) |
|
|
2149 | { |
|
|
2150 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2151 | |
|
|
2152 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2153 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2154 | api_ready (aTHX_ cb); |
|
|
2155 | else |
2020 | { |
2156 | { |
2021 | dSP; /* don't disturb outer sp */ |
2157 | dSP; /* don't disturb outer sp */ |
2022 | SV *cb = av_pop (on_destroy); |
|
|
2023 | |
|
|
2024 | PUSHMARK (SP); |
2158 | PUSHMARK (SP); |
2025 | |
2159 | |
2026 | if (statusp) |
2160 | if (coro->status) |
2027 | { |
2161 | { |
2028 | int i; |
2162 | PUTBACK; |
2029 | AV *status = (AV *)SvRV (*statusp); |
2163 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
2030 | EXTEND (SP, AvFILLp (status) + 1); |
2164 | SPAGAIN; |
2031 | |
|
|
2032 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
2033 | PUSHs (AvARRAY (status)[i]); |
|
|
2034 | } |
2165 | } |
2035 | |
2166 | |
2036 | PUTBACK; |
2167 | PUTBACK; |
2037 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
2168 | call_sv (cb, G_VOID | G_DISCARD); |
2038 | } |
2169 | } |
2039 | } |
2170 | } |
2040 | } |
2171 | } |
2041 | |
2172 | |
2042 | static void |
2173 | static void |
2043 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2174 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
2044 | { |
2175 | { |
2045 | int i; |
2176 | AV *av; |
2046 | HV *hv = (HV *)SvRV (coro_current); |
2177 | |
2047 | AV *av = newAV (); |
2178 | if (coro->status) |
|
|
2179 | { |
|
|
2180 | av = coro->status; |
|
|
2181 | av_clear (av); |
|
|
2182 | } |
|
|
2183 | else |
|
|
2184 | av = coro->status = newAV (); |
2048 | |
2185 | |
2049 | /* items are actually not so common, so optimise for this case */ |
2186 | /* items are actually not so common, so optimise for this case */ |
2050 | if (items) |
2187 | if (items) |
2051 | { |
2188 | { |
|
|
2189 | int i; |
|
|
2190 | |
2052 | av_extend (av, items - 1); |
2191 | av_extend (av, items - 1); |
2053 | |
2192 | |
2054 | for (i = 0; i < items; ++i) |
2193 | for (i = 0; i < items; ++i) |
2055 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
2194 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
2056 | } |
2195 | } |
|
|
2196 | } |
2057 | |
2197 | |
2058 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
2198 | static void |
2059 | |
2199 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2200 | { |
2060 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
2201 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
2061 | api_ready (aTHX_ sv_manager); |
2202 | api_ready (aTHX_ sv_manager); |
2062 | |
2203 | |
2063 | frame->prepare = prepare_schedule; |
2204 | frame->prepare = prepare_schedule; |
2064 | frame->check = slf_check_repeat; |
2205 | frame->check = slf_check_repeat; |
2065 | |
2206 | |
2066 | /* as a minor optimisation, we could unwind all stacks here */ |
2207 | /* as a minor optimisation, we could unwind all stacks here */ |
2067 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
2208 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
2068 | /*coro_unwind_stacks (aTHX);*/ |
2209 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2210 | } |
|
|
2211 | |
|
|
2212 | static void |
|
|
2213 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2214 | { |
|
|
2215 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2216 | |
|
|
2217 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2218 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2219 | } |
|
|
2220 | |
|
|
2221 | static void |
|
|
2222 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2223 | { |
|
|
2224 | HV *coro_hv; |
|
|
2225 | struct coro *coro; |
|
|
2226 | |
|
|
2227 | if (items <= 0) |
|
|
2228 | croak ("Coro::cancel called without coro object,"); |
|
|
2229 | |
|
|
2230 | coro = SvSTATE (arg [0]); |
|
|
2231 | coro_hv = coro->hv; |
|
|
2232 | |
|
|
2233 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2234 | |
|
|
2235 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2236 | { |
|
|
2237 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2238 | coro->slf_frame.data = (void *)coro; |
|
|
2239 | |
|
|
2240 | frame->prepare = prepare_nop; |
|
|
2241 | frame->check = slf_check_nop; |
|
|
2242 | } |
|
|
2243 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2244 | { |
|
|
2245 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2246 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2247 | } |
|
|
2248 | else |
|
|
2249 | { |
|
|
2250 | struct coro *self = SvSTATE_current; |
|
|
2251 | |
|
|
2252 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2253 | * unfortunately, this requires some magic trickery, as |
|
|
2254 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2255 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2256 | * besides, I can't get the slow-but-safe version working... |
|
|
2257 | */ |
|
|
2258 | slf_frame.data = 0; |
|
|
2259 | self->flags |= CF_NOCANCEL; |
|
|
2260 | coro_state_destroy (aTHX_ coro); |
|
|
2261 | self->flags &= ~CF_NOCANCEL; |
|
|
2262 | |
|
|
2263 | if (slf_frame.data) |
|
|
2264 | { |
|
|
2265 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2266 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2267 | } |
|
|
2268 | else |
|
|
2269 | { |
|
|
2270 | frame->prepare = prepare_nop; |
|
|
2271 | frame->check = slf_check_nop; |
|
|
2272 | } |
|
|
2273 | } |
|
|
2274 | } |
|
|
2275 | |
|
|
2276 | static int |
|
|
2277 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2278 | { |
|
|
2279 | frame->prepare = 0; |
|
|
2280 | coro_unwind_stacks (aTHX); |
|
|
2281 | |
|
|
2282 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2283 | |
|
|
2284 | return 1; |
|
|
2285 | } |
|
|
2286 | |
|
|
2287 | static int |
|
|
2288 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2289 | { |
|
|
2290 | if (coro->cctx) |
|
|
2291 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2292 | |
|
|
2293 | if (coro->flags & CF_NEW) |
|
|
2294 | { |
|
|
2295 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2296 | coro_state_destroy (aTHX_ coro); |
|
|
2297 | } |
|
|
2298 | else |
|
|
2299 | { |
|
|
2300 | if (!coro->slf_frame.prepare) |
|
|
2301 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2302 | |
|
|
2303 | slf_destroy (aTHX_ coro); |
|
|
2304 | |
|
|
2305 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2306 | coro->slf_frame.prepare = prepare_nop; |
|
|
2307 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2308 | |
|
|
2309 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2310 | } |
|
|
2311 | |
|
|
2312 | return 1; |
2069 | } |
2313 | } |
2070 | |
2314 | |
2071 | /*****************************************************************************/ |
2315 | /*****************************************************************************/ |
2072 | /* async pool handler */ |
2316 | /* async pool handler */ |
2073 | |
2317 | |
… | |
… | |
2104 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2348 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2105 | { |
2349 | { |
2106 | HV *hv = (HV *)SvRV (coro_current); |
2350 | HV *hv = (HV *)SvRV (coro_current); |
2107 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2351 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2108 | |
2352 | |
2109 | if (expect_true (coro->saved_deffh)) |
2353 | if (ecb_expect_true (coro->saved_deffh)) |
2110 | { |
2354 | { |
2111 | /* subsequent iteration */ |
2355 | /* subsequent iteration */ |
2112 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2356 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2113 | coro->saved_deffh = 0; |
2357 | coro->saved_deffh = 0; |
2114 | |
2358 | |
2115 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2359 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2116 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2360 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2117 | { |
2361 | { |
2118 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
2362 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
2119 | coro->invoke_av = newAV (); |
2363 | return; |
2120 | |
|
|
2121 | frame->prepare = prepare_nop; |
|
|
2122 | } |
2364 | } |
2123 | else |
2365 | else |
2124 | { |
2366 | { |
2125 | av_clear (GvAV (PL_defgv)); |
2367 | av_clear (GvAV (PL_defgv)); |
2126 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
2368 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
… | |
… | |
2349 | static void |
2591 | static void |
2350 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2592 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2351 | { |
2593 | { |
2352 | frame->prepare = prepare_cede_notself; |
2594 | frame->prepare = prepare_cede_notself; |
2353 | frame->check = slf_check_nop; |
2595 | frame->check = slf_check_nop; |
|
|
2596 | } |
|
|
2597 | |
|
|
2598 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2599 | static void |
|
|
2600 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2601 | { |
|
|
2602 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2603 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2604 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2605 | |
|
|
2606 | /* |
|
|
2607 | * The on_destroy above most likely is from an SLF call. |
|
|
2608 | * Since by definition the SLF call will not finish when we destroy |
|
|
2609 | * the coro, we will have to force-finish it here, otherwise |
|
|
2610 | * cleanup functions cannot call SLF functions. |
|
|
2611 | */ |
|
|
2612 | coro->slf_frame.prepare = 0; |
2354 | } |
2613 | } |
2355 | |
2614 | |
2356 | /* |
2615 | /* |
2357 | * these not obviously related functions are all rolled into one |
2616 | * these not obviously related functions are all rolled into one |
2358 | * function to increase chances that they all will call transfer with the same |
2617 | * function to increase chances that they all will call transfer with the same |
… | |
… | |
2365 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
2624 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
2366 | |
2625 | |
2367 | /* set up the slf frame, unless it has already been set-up */ |
2626 | /* set up the slf frame, unless it has already been set-up */ |
2368 | /* the latter happens when a new coro has been started */ |
2627 | /* the latter happens when a new coro has been started */ |
2369 | /* or when a new cctx was attached to an existing coroutine */ |
2628 | /* or when a new cctx was attached to an existing coroutine */ |
2370 | if (expect_true (!slf_frame.prepare)) |
2629 | if (ecb_expect_true (!slf_frame.prepare)) |
2371 | { |
2630 | { |
2372 | /* first iteration */ |
2631 | /* first iteration */ |
2373 | dSP; |
2632 | dSP; |
2374 | SV **arg = PL_stack_base + TOPMARK + 1; |
2633 | SV **arg = PL_stack_base + TOPMARK + 1; |
2375 | int items = SP - arg; /* args without function object */ |
2634 | int items = SP - arg; /* args without function object */ |
… | |
… | |
2416 | while (slf_frame.check (aTHX_ &slf_frame)); |
2675 | while (slf_frame.check (aTHX_ &slf_frame)); |
2417 | |
2676 | |
2418 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
2677 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
2419 | |
2678 | |
2420 | /* exception handling */ |
2679 | /* exception handling */ |
2421 | if (expect_false (CORO_THROW)) |
2680 | if (ecb_expect_false (CORO_THROW)) |
2422 | { |
2681 | { |
2423 | SV *exception = sv_2mortal (CORO_THROW); |
2682 | SV *exception = sv_2mortal (CORO_THROW); |
2424 | |
2683 | |
2425 | CORO_THROW = 0; |
2684 | CORO_THROW = 0; |
2426 | sv_setsv (ERRSV, exception); |
2685 | sv_setsv (ERRSV, exception); |
2427 | croak (0); |
2686 | croak (0); |
2428 | } |
2687 | } |
2429 | |
2688 | |
2430 | /* return value handling - mostly like entersub */ |
2689 | /* return value handling - mostly like entersub */ |
2431 | /* make sure we put something on the stack in scalar context */ |
2690 | /* make sure we put something on the stack in scalar context */ |
2432 | if (GIMME_V == G_SCALAR) |
2691 | if (GIMME_V == G_SCALAR |
|
|
2692 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
2433 | { |
2693 | { |
2434 | dSP; |
2694 | dSP; |
2435 | SV **bot = PL_stack_base + checkmark; |
2695 | SV **bot = PL_stack_base + checkmark; |
2436 | |
2696 | |
2437 | if (sp == bot) /* too few, push undef */ |
2697 | if (sp == bot) /* too few, push undef */ |
2438 | bot [1] = &PL_sv_undef; |
2698 | bot [1] = &PL_sv_undef; |
2439 | else if (sp != bot + 1) /* too many, take last one */ |
2699 | else /* too many, take last one */ |
2440 | bot [1] = *sp; |
2700 | bot [1] = *sp; |
2441 | |
2701 | |
2442 | SP = bot + 1; |
2702 | SP = bot + 1; |
2443 | |
2703 | |
2444 | PUTBACK; |
2704 | PUTBACK; |
… | |
… | |
2551 | { |
2811 | { |
2552 | PerlIOBuf base; |
2812 | PerlIOBuf base; |
2553 | NV next, every; |
2813 | NV next, every; |
2554 | } PerlIOCede; |
2814 | } PerlIOCede; |
2555 | |
2815 | |
2556 | static IV |
2816 | static IV ecb_cold |
2557 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2817 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2558 | { |
2818 | { |
2559 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2819 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2560 | |
2820 | |
2561 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2821 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2562 | self->next = nvtime () + self->every; |
2822 | self->next = nvtime () + self->every; |
2563 | |
2823 | |
2564 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2824 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2565 | } |
2825 | } |
2566 | |
2826 | |
2567 | static SV * |
2827 | static SV * ecb_cold |
2568 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2828 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2569 | { |
2829 | { |
2570 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2830 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2571 | |
2831 | |
2572 | return newSVnv (self->every); |
2832 | return newSVnv (self->every); |
… | |
… | |
2684 | SvREFCNT_dec (cb); |
2944 | SvREFCNT_dec (cb); |
2685 | } |
2945 | } |
2686 | } |
2946 | } |
2687 | |
2947 | |
2688 | static void |
2948 | static void |
2689 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2949 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
2690 | { |
2950 | { |
2691 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2951 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2692 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2952 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
2693 | } |
2953 | } |
2694 | |
2954 | |
2695 | static int |
2955 | static int |
2696 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2956 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2697 | { |
2957 | { |
2698 | AV *av = (AV *)frame->data; |
2958 | AV *av = (AV *)frame->data; |
2699 | SV *count_sv = AvARRAY (av)[0]; |
2959 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2960 | SV *coro_hv = SvRV (coro_current); |
2700 | |
2961 | |
2701 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
2962 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
2702 | if (CORO_THROW) |
2963 | if (CORO_THROW) |
2703 | return 0; |
2964 | return 0; |
2704 | else if (SvIVX (count_sv) > 0) |
2965 | else if (SvIVX (count_sv) > 0) |
2705 | { |
2966 | { |
2706 | SvSTATE_current->on_destroy = 0; |
2967 | frame->destroy = 0; |
2707 | |
2968 | |
2708 | if (acquire) |
2969 | if (acquire) |
2709 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2970 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2710 | else |
2971 | else |
2711 | coro_semaphore_adjust (aTHX_ av, 0); |
2972 | coro_semaphore_adjust (aTHX_ av, 0); |
… | |
… | |
2716 | { |
2977 | { |
2717 | int i; |
2978 | int i; |
2718 | /* if we were woken up but can't down, we look through the whole */ |
2979 | /* if we were woken up but can't down, we look through the whole */ |
2719 | /* waiters list and only add us if we aren't in there already */ |
2980 | /* waiters list and only add us if we aren't in there already */ |
2720 | /* this avoids some degenerate memory usage cases */ |
2981 | /* this avoids some degenerate memory usage cases */ |
2721 | |
2982 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
2722 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2723 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
2983 | if (AvARRAY (av)[i] == coro_hv) |
2724 | return 1; |
2984 | return 1; |
2725 | |
2985 | |
2726 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2986 | av_push (av, SvREFCNT_inc (coro_hv)); |
2727 | return 1; |
2987 | return 1; |
2728 | } |
2988 | } |
2729 | } |
2989 | } |
2730 | |
2990 | |
2731 | static int |
2991 | static int |
… | |
… | |
2754 | { |
3014 | { |
2755 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
3015 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2756 | |
3016 | |
2757 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
3017 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2758 | frame->prepare = prepare_schedule; |
3018 | frame->prepare = prepare_schedule; |
2759 | |
|
|
2760 | /* to avoid race conditions when a woken-up coro gets terminated */ |
3019 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2761 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
3020 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2762 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
3021 | frame->destroy = coro_semaphore_destroy; |
2763 | } |
3022 | } |
2764 | } |
3023 | } |
2765 | |
3024 | |
2766 | static void |
3025 | static void |
2767 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
3026 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
… | |
… | |
2985 | dSP; |
3244 | dSP; |
2986 | |
3245 | |
2987 | static SV *prio_cv; |
3246 | static SV *prio_cv; |
2988 | static SV *prio_sv; |
3247 | static SV *prio_sv; |
2989 | |
3248 | |
2990 | if (expect_false (!prio_cv)) |
3249 | if (ecb_expect_false (!prio_cv)) |
2991 | { |
3250 | { |
2992 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
3251 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
2993 | prio_sv = newSViv (0); |
3252 | prio_sv = newSViv (0); |
2994 | } |
3253 | } |
2995 | |
3254 | |
… | |
… | |
3101 | } |
3360 | } |
3102 | |
3361 | |
3103 | return coro_sv; |
3362 | return coro_sv; |
3104 | } |
3363 | } |
3105 | |
3364 | |
|
|
3365 | #ifndef __cplusplus |
|
|
3366 | ecb_cold XS(boot_Coro__State); |
|
|
3367 | #endif |
|
|
3368 | |
|
|
3369 | #if CORO_JIT |
|
|
3370 | |
|
|
3371 | static void ecb_noinline ecb_cold |
|
|
3372 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3373 | { |
|
|
3374 | dSP; |
|
|
3375 | AV *av = newAV (); |
|
|
3376 | |
|
|
3377 | av_store (av, 3, newSVuv (d)); |
|
|
3378 | av_store (av, 2, newSVuv (c)); |
|
|
3379 | av_store (av, 1, newSVuv (b)); |
|
|
3380 | av_store (av, 0, newSVuv (a)); |
|
|
3381 | |
|
|
3382 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3383 | |
|
|
3384 | PUTBACK; |
|
|
3385 | } |
|
|
3386 | |
|
|
3387 | static void ecb_noinline ecb_cold |
|
|
3388 | jit_init (pTHX) |
|
|
3389 | { |
|
|
3390 | dSP; |
|
|
3391 | SV *load, *save; |
|
|
3392 | char *map_base; |
|
|
3393 | char *load_ptr, *save_ptr; |
|
|
3394 | STRLEN load_len, save_len, map_len; |
|
|
3395 | int count; |
|
|
3396 | |
|
|
3397 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3398 | |
|
|
3399 | PUSHMARK (SP); |
|
|
3400 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3401 | #include "state.h" |
|
|
3402 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3403 | SPAGAIN; |
|
|
3404 | |
|
|
3405 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3406 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3407 | |
|
|
3408 | map_len = load_len + save_len + 16; |
|
|
3409 | |
|
|
3410 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3411 | |
|
|
3412 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3413 | |
|
|
3414 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3415 | memcpy (map_base, load_ptr, load_len); |
|
|
3416 | |
|
|
3417 | map_base += (load_len + 15) & ~15; |
|
|
3418 | |
|
|
3419 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3420 | memcpy (map_base, save_ptr, save_len); |
|
|
3421 | |
|
|
3422 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3423 | /* hackers might have it a bit more difficult */ |
|
|
3424 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3425 | |
|
|
3426 | PUTBACK; |
|
|
3427 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3428 | } |
|
|
3429 | |
|
|
3430 | #endif |
|
|
3431 | |
3106 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3432 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3107 | |
3433 | |
3108 | PROTOTYPES: DISABLE |
3434 | PROTOTYPES: DISABLE |
3109 | |
3435 | |
3110 | BOOT: |
3436 | BOOT: |
… | |
… | |
3113 | # if CORO_PTHREAD |
3439 | # if CORO_PTHREAD |
3114 | coro_thx = PERL_GET_CONTEXT; |
3440 | coro_thx = PERL_GET_CONTEXT; |
3115 | # endif |
3441 | # endif |
3116 | #endif |
3442 | #endif |
3117 | BOOT_PAGESIZE; |
3443 | BOOT_PAGESIZE; |
|
|
3444 | |
|
|
3445 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3446 | /* just create them one at init time is not clear to me, except for */ |
|
|
3447 | /* programs trying to delete them, but... */ |
|
|
3448 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3449 | DEFSV; |
|
|
3450 | ERRSV; |
3118 | |
3451 | |
3119 | cctx_current = cctx_new_empty (); |
3452 | cctx_current = cctx_new_empty (); |
3120 | |
3453 | |
3121 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3454 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3122 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3455 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
… | |
… | |
3165 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3498 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3166 | |
3499 | |
3167 | time_init (aTHX); |
3500 | time_init (aTHX); |
3168 | |
3501 | |
3169 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
3502 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3503 | #if CORO_JIT |
|
|
3504 | PUTBACK; |
|
|
3505 | jit_init (aTHX); |
|
|
3506 | SPAGAIN; |
|
|
3507 | #endif |
3170 | } |
3508 | } |
3171 | |
3509 | |
3172 | SV * |
3510 | SV * |
3173 | new (SV *klass, ...) |
3511 | new (SV *klass, ...) |
3174 | ALIAS: |
3512 | ALIAS: |
… | |
… | |
3181 | void |
3519 | void |
3182 | transfer (...) |
3520 | transfer (...) |
3183 | PROTOTYPE: $$ |
3521 | PROTOTYPE: $$ |
3184 | CODE: |
3522 | CODE: |
3185 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
3523 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
3186 | |
|
|
3187 | bool |
|
|
3188 | _destroy (SV *coro_sv) |
|
|
3189 | CODE: |
|
|
3190 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
3191 | OUTPUT: |
|
|
3192 | RETVAL |
|
|
3193 | |
3524 | |
3194 | void |
3525 | void |
3195 | _exit (int code) |
3526 | _exit (int code) |
3196 | PROTOTYPE: $ |
3527 | PROTOTYPE: $ |
3197 | CODE: |
3528 | CODE: |
… | |
… | |
3273 | CODE: |
3604 | CODE: |
3274 | { |
3605 | { |
3275 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3606 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3276 | { |
3607 | { |
3277 | struct coro *current = SvSTATE_current; |
3608 | struct coro *current = SvSTATE_current; |
|
|
3609 | struct CoroSLF slf_save; |
3278 | |
3610 | |
3279 | if (current != coro) |
3611 | if (current != coro) |
3280 | { |
3612 | { |
3281 | PUTBACK; |
3613 | PUTBACK; |
3282 | save_perl (aTHX_ current); |
3614 | save_perl (aTHX_ current); |
3283 | load_perl (aTHX_ coro); |
3615 | load_perl (aTHX_ coro); |
|
|
3616 | /* the coro is most likely in an active SLF call. |
|
|
3617 | * while not strictly required (the code we execute is |
|
|
3618 | * not allowed to call any SLF functions), it's cleaner |
|
|
3619 | * to reinitialise the slf_frame and restore it later. |
|
|
3620 | * This might one day allow us to actually do SLF calls |
|
|
3621 | * from code executed here. |
|
|
3622 | */ |
|
|
3623 | slf_save = slf_frame; |
|
|
3624 | slf_frame.prepare = 0; |
3284 | SPAGAIN; |
3625 | SPAGAIN; |
3285 | } |
3626 | } |
3286 | |
3627 | |
3287 | PUSHSTACK; |
3628 | PUSHSTACK; |
3288 | |
3629 | |
… | |
… | |
3298 | SPAGAIN; |
3639 | SPAGAIN; |
3299 | |
3640 | |
3300 | if (current != coro) |
3641 | if (current != coro) |
3301 | { |
3642 | { |
3302 | PUTBACK; |
3643 | PUTBACK; |
|
|
3644 | slf_frame = slf_save; |
3303 | save_perl (aTHX_ coro); |
3645 | save_perl (aTHX_ coro); |
3304 | load_perl (aTHX_ current); |
3646 | load_perl (aTHX_ current); |
3305 | SPAGAIN; |
3647 | SPAGAIN; |
3306 | } |
3648 | } |
3307 | } |
3649 | } |
… | |
… | |
3312 | PROTOTYPE: $ |
3654 | PROTOTYPE: $ |
3313 | ALIAS: |
3655 | ALIAS: |
3314 | is_ready = CF_READY |
3656 | is_ready = CF_READY |
3315 | is_running = CF_RUNNING |
3657 | is_running = CF_RUNNING |
3316 | is_new = CF_NEW |
3658 | is_new = CF_NEW |
3317 | is_destroyed = CF_DESTROYED |
3659 | is_destroyed = CF_ZOMBIE |
|
|
3660 | is_zombie = CF_ZOMBIE |
3318 | is_suspended = CF_SUSPENDED |
3661 | is_suspended = CF_SUSPENDED |
3319 | CODE: |
3662 | CODE: |
3320 | RETVAL = boolSV (coro->flags & ix); |
3663 | RETVAL = boolSV (coro->flags & ix); |
3321 | OUTPUT: |
3664 | OUTPUT: |
3322 | RETVAL |
3665 | RETVAL |
3323 | |
3666 | |
3324 | void |
3667 | void |
3325 | throw (Coro::State self, SV *exception = &PL_sv_undef) |
3668 | throw (SV *self, SV *exception = &PL_sv_undef) |
3326 | PROTOTYPE: $;$ |
3669 | PROTOTYPE: $;$ |
3327 | CODE: |
3670 | CODE: |
3328 | { |
3671 | { |
|
|
3672 | struct coro *coro = SvSTATE (self); |
3329 | struct coro *current = SvSTATE_current; |
3673 | struct coro *current = SvSTATE_current; |
3330 | SV **exceptionp = self == current ? &CORO_THROW : &self->except; |
3674 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
3331 | SvREFCNT_dec (*exceptionp); |
3675 | SvREFCNT_dec (*exceptionp); |
3332 | SvGETMAGIC (exception); |
3676 | SvGETMAGIC (exception); |
3333 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
3677 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3678 | |
|
|
3679 | api_ready (aTHX_ self); |
3334 | } |
3680 | } |
3335 | |
3681 | |
3336 | void |
3682 | void |
3337 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3683 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3338 | PROTOTYPE: $;$ |
3684 | PROTOTYPE: $;$ |
… | |
… | |
3393 | |
3739 | |
3394 | void |
3740 | void |
3395 | cancel (Coro::State self) |
3741 | cancel (Coro::State self) |
3396 | CODE: |
3742 | CODE: |
3397 | coro_state_destroy (aTHX_ self); |
3743 | coro_state_destroy (aTHX_ self); |
3398 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3399 | |
|
|
3400 | |
3744 | |
3401 | SV * |
3745 | SV * |
3402 | enable_times (int enabled = enable_times) |
3746 | enable_times (int enabled = enable_times) |
3403 | CODE: |
3747 | CODE: |
3404 | { |
3748 | { |
… | |
… | |
3419 | times (Coro::State self) |
3763 | times (Coro::State self) |
3420 | PPCODE: |
3764 | PPCODE: |
3421 | { |
3765 | { |
3422 | struct coro *current = SvSTATE (coro_current); |
3766 | struct coro *current = SvSTATE (coro_current); |
3423 | |
3767 | |
3424 | if (expect_false (current == self)) |
3768 | if (ecb_expect_false (current == self)) |
3425 | { |
3769 | { |
3426 | coro_times_update (); |
3770 | coro_times_update (); |
3427 | coro_times_add (SvSTATE (coro_current)); |
3771 | coro_times_add (SvSTATE (coro_current)); |
3428 | } |
3772 | } |
3429 | |
3773 | |
3430 | EXTEND (SP, 2); |
3774 | EXTEND (SP, 2); |
3431 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
3775 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
3432 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
3776 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
3433 | |
3777 | |
3434 | if (expect_false (current == self)) |
3778 | if (ecb_expect_false (current == self)) |
3435 | coro_times_sub (SvSTATE (coro_current)); |
3779 | coro_times_sub (SvSTATE (coro_current)); |
3436 | } |
3780 | } |
3437 | |
3781 | |
3438 | void |
3782 | void |
3439 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
3783 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
… | |
… | |
3460 | BOOT: |
3804 | BOOT: |
3461 | { |
3805 | { |
3462 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3806 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3463 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3807 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3464 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
3808 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
3465 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
|
|
3466 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
3809 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
3467 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3810 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3468 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
3811 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
3469 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
3812 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
3470 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
3813 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
… | |
… | |
3509 | api_ready (aTHX_ RETVAL); |
3852 | api_ready (aTHX_ RETVAL); |
3510 | OUTPUT: |
3853 | OUTPUT: |
3511 | RETVAL |
3854 | RETVAL |
3512 | |
3855 | |
3513 | void |
3856 | void |
|
|
3857 | _destroy (Coro::State coro) |
|
|
3858 | CODE: |
|
|
3859 | /* used by the manager thread */ |
|
|
3860 | coro_state_destroy (aTHX_ coro); |
|
|
3861 | |
|
|
3862 | void |
|
|
3863 | on_destroy (Coro::State coro, SV *cb) |
|
|
3864 | CODE: |
|
|
3865 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3866 | |
|
|
3867 | void |
|
|
3868 | join (...) |
|
|
3869 | CODE: |
|
|
3870 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3871 | |
|
|
3872 | void |
3514 | terminate (...) |
3873 | terminate (...) |
3515 | CODE: |
3874 | CODE: |
3516 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
3875 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3876 | |
|
|
3877 | void |
|
|
3878 | cancel (...) |
|
|
3879 | CODE: |
|
|
3880 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3881 | |
|
|
3882 | int |
|
|
3883 | safe_cancel (Coro::State self, ...) |
|
|
3884 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
3517 | |
3885 | |
3518 | void |
3886 | void |
3519 | schedule (...) |
3887 | schedule (...) |
3520 | CODE: |
3888 | CODE: |
3521 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
3889 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
… | |
… | |
3797 | } |
4165 | } |
3798 | |
4166 | |
3799 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
4167 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
3800 | |
4168 | |
3801 | void |
4169 | void |
3802 | _may_delete (SV *sem, int count, int extra_refs) |
4170 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
3803 | PPCODE: |
4171 | PPCODE: |
3804 | { |
4172 | { |
3805 | AV *av = (AV *)SvRV (sem); |
4173 | AV *av = (AV *)SvRV (sem); |
3806 | |
4174 | |
3807 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
4175 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |