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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" |
17 | |
17 | |
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18 | #define ECB_NO_THREADS 1 |
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19 | #include "ecb.h" |
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20 | |
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21 | #include <stddef.h> |
18 | #include <stdio.h> |
22 | #include <stdio.h> |
19 | #include <errno.h> |
23 | #include <errno.h> |
20 | #include <assert.h> |
24 | #include <assert.h> |
21 | |
25 | |
22 | #ifndef SVs_PADSTALE |
26 | #ifndef SVs_PADSTALE |
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31 | # define setjmp _setjmp /* deep magic */ |
35 | # define setjmp _setjmp /* deep magic */ |
32 | #else |
36 | #else |
33 | # include <inttypes.h> /* most portable stdint.h */ |
37 | # include <inttypes.h> /* most portable stdint.h */ |
34 | #endif |
38 | #endif |
35 | |
39 | |
36 | #ifdef HAVE_MMAP |
40 | #if HAVE_MMAP |
37 | # include <unistd.h> |
41 | # include <unistd.h> |
38 | # include <sys/mman.h> |
42 | # include <sys/mman.h> |
39 | # ifndef MAP_ANONYMOUS |
43 | # ifndef MAP_ANONYMOUS |
40 | # ifdef MAP_ANON |
44 | # ifdef MAP_ANON |
41 | # define MAP_ANONYMOUS MAP_ANON |
45 | # define MAP_ANONYMOUS MAP_ANON |
… | |
… | |
61 | #endif |
65 | #endif |
62 | |
66 | |
63 | /* the maximum number of idle cctx that will be pooled */ |
67 | /* the maximum number of idle cctx that will be pooled */ |
64 | static int cctx_max_idle = 4; |
68 | static int cctx_max_idle = 4; |
65 | |
69 | |
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70 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
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71 | # define HAS_SCOPESTACK_NAME 1 |
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72 | #endif |
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73 | |
66 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
74 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
67 | # undef CORO_STACKGUARD |
75 | # undef CORO_STACKGUARD |
68 | #endif |
76 | #endif |
69 | |
77 | |
70 | #ifndef CORO_STACKGUARD |
78 | #ifndef CORO_STACKGUARD |
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86 | # define STACKLEVEL ((void *)&stacklevel) |
94 | # define STACKLEVEL ((void *)&stacklevel) |
87 | #endif |
95 | #endif |
88 | |
96 | |
89 | #define IN_DESTRUCT PL_dirty |
97 | #define IN_DESTRUCT PL_dirty |
90 | |
98 | |
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" |
99 | #include "CoroAPI.h" |
107 | #define GCoroAPI (&coroapi) /* very sneaky */ |
100 | #define GCoroAPI (&coroapi) /* very sneaky */ |
108 | |
101 | |
109 | #ifdef USE_ITHREADS |
102 | #ifdef USE_ITHREADS |
110 | # if CORO_PTHREAD |
103 | # if CORO_PTHREAD |
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126 | static void (*u2time)(pTHX_ UV ret[2]); |
119 | static void (*u2time)(pTHX_ UV ret[2]); |
127 | |
120 | |
128 | /* we hijack an hopefully unused CV flag for our purposes */ |
121 | /* we hijack an hopefully unused CV flag for our purposes */ |
129 | #define CVf_SLF 0x4000 |
122 | #define CVf_SLF 0x4000 |
130 | static OP *pp_slf (pTHX); |
123 | static OP *pp_slf (pTHX); |
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124 | static void slf_destroy (pTHX_ struct coro *coro); |
131 | |
125 | |
132 | static U32 cctx_gen; |
126 | static U32 cctx_gen; |
133 | static size_t cctx_stacksize = CORO_STACKSIZE; |
127 | static size_t cctx_stacksize = CORO_STACKSIZE; |
134 | static struct CoroAPI coroapi; |
128 | static struct CoroAPI coroapi; |
135 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
129 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
… | |
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165 | static char times_valid; |
159 | static char times_valid; |
166 | |
160 | |
167 | static struct coro_cctx *cctx_first; |
161 | static struct coro_cctx *cctx_first; |
168 | static int cctx_count, cctx_idle; |
162 | static int cctx_count, cctx_idle; |
169 | |
163 | |
170 | enum { |
164 | enum |
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165 | { |
171 | CC_MAPPED = 0x01, |
166 | CC_MAPPED = 0x01, |
172 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
167 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
173 | CC_TRACE = 0x04, |
168 | CC_TRACE = 0x04, |
174 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
169 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
175 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
170 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
… | |
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185 | void *sptr; |
180 | void *sptr; |
186 | size_t ssize; |
181 | size_t ssize; |
187 | |
182 | |
188 | /* cpu state */ |
183 | /* cpu state */ |
189 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
184 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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185 | #ifndef NDEBUG |
190 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
186 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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187 | #endif |
191 | JMPENV *top_env; |
188 | JMPENV *top_env; |
192 | coro_context cctx; |
189 | coro_context cctx; |
193 | |
190 | |
194 | U32 gen; |
191 | U32 gen; |
195 | #if CORO_USE_VALGRIND |
192 | #if CORO_USE_VALGRIND |
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200 | |
197 | |
201 | static coro_cctx *cctx_current; /* the currently running cctx */ |
198 | static coro_cctx *cctx_current; /* the currently running cctx */ |
202 | |
199 | |
203 | /*****************************************************************************/ |
200 | /*****************************************************************************/ |
204 | |
201 | |
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202 | static MGVTBL coro_state_vtbl; |
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203 | |
205 | enum { |
204 | enum |
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205 | { |
206 | CF_RUNNING = 0x0001, /* coroutine is running */ |
206 | CF_RUNNING = 0x0001, /* coroutine is running */ |
207 | CF_READY = 0x0002, /* coroutine is ready */ |
207 | CF_READY = 0x0002, /* coroutine is ready */ |
208 | CF_NEW = 0x0004, /* has never been switched to */ |
208 | CF_NEW = 0x0004, /* has never been switched to */ |
209 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
209 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
210 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
210 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
211 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
211 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
212 | }; |
212 | }; |
213 | |
213 | |
214 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
214 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
215 | typedef struct |
215 | typedef struct |
216 | { |
216 | { |
217 | SV *defsv; |
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218 | AV *defav; |
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219 | SV *errsv; |
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220 | SV *irsgv; |
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221 | HV *hinthv; |
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222 | #define VAR(name,type) type name; |
217 | #define VARx(name,expr,type) type name; |
223 | # include "state.h" |
218 | #include "state.h" |
224 | #undef VAR |
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225 | } perl_slots; |
219 | } perl_slots; |
226 | |
220 | |
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221 | /* how many context stack entries do we need for perl_slots */ |
227 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
222 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
228 | |
223 | |
229 | /* this is a structure representing a perl-level coroutine */ |
224 | /* this is a structure representing a perl-level coroutine */ |
230 | struct coro { |
225 | struct coro |
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226 | { |
231 | /* the C coroutine allocated to this perl coroutine, if any */ |
227 | /* the C coroutine allocated to this perl coroutine, if any */ |
232 | coro_cctx *cctx; |
228 | coro_cctx *cctx; |
233 | |
229 | |
234 | /* ready queue */ |
230 | /* ready queue */ |
235 | struct coro *next_ready; |
231 | struct coro *next_ready; |
… | |
… | |
237 | /* state data */ |
233 | /* state data */ |
238 | struct CoroSLF slf_frame; /* saved slf frame */ |
234 | struct CoroSLF slf_frame; /* saved slf frame */ |
239 | AV *mainstack; |
235 | AV *mainstack; |
240 | perl_slots *slot; /* basically the saved sp */ |
236 | perl_slots *slot; /* basically the saved sp */ |
241 | |
237 | |
242 | CV *startcv; /* the CV to execute */ |
238 | CV *startcv; /* the CV to execute */ |
243 | AV *args; /* data associated with this coroutine (initial args) */ |
239 | AV *args; /* data associated with this coroutine (initial args) */ |
244 | int refcnt; /* coroutines are refcounted, yes */ |
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245 | int flags; /* CF_ flags */ |
240 | int flags; /* CF_ flags */ |
246 | HV *hv; /* the perl hash associated with this coro, if any */ |
241 | HV *hv; /* the perl hash associated with this coro, if any */ |
247 | void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */ |
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248 | |
242 | |
249 | /* statistics */ |
243 | /* statistics */ |
250 | int usecount; /* number of transfers to this coro */ |
244 | int usecount; /* number of transfers to this coro */ |
251 | |
245 | |
252 | /* coro process data */ |
246 | /* coro process data */ |
253 | int prio; |
247 | int prio; |
254 | SV *except; /* exception to be thrown */ |
248 | SV *except; /* exception to be thrown */ |
255 | SV *rouse_cb; |
249 | SV *rouse_cb; /* last rouse callback */ |
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250 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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251 | AV *status; /* the exit status list */ |
256 | |
252 | |
257 | /* async_pool */ |
253 | /* async_pool */ |
258 | SV *saved_deffh; |
254 | SV *saved_deffh; |
259 | SV *invoke_cb; |
255 | SV *invoke_cb; |
260 | AV *invoke_av; |
256 | AV *invoke_av; |
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292 | |
288 | |
293 | /* for Coro.pm */ |
289 | /* for Coro.pm */ |
294 | static SV *coro_current; |
290 | static SV *coro_current; |
295 | static SV *coro_readyhook; |
291 | static SV *coro_readyhook; |
296 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
292 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
297 | static CV *cv_coro_run, *cv_coro_terminate; |
293 | static CV *cv_coro_run; |
298 | static struct coro *coro_first; |
294 | static struct coro *coro_first; |
299 | #define coro_nready coroapi.nready |
295 | #define coro_nready coroapi.nready |
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296 | |
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297 | /** JIT *********************************************************************/ |
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298 | |
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299 | #if CORO_JIT |
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300 | /* APPLE doesn't have HAVE_MMAP though */ |
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301 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
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302 | #ifndef CORO_JIT_TYPE |
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303 | #if __x86_64 && CORO_JIT_UNIXY |
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304 | #define CORO_JIT_TYPE "amd64-unix" |
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305 | #elif __i386 && CORO_JIT_UNIXY |
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306 | #define CORO_JIT_TYPE "x86-unix" |
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307 | #endif |
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308 | #endif |
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309 | #endif |
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310 | |
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311 | #if !defined(CORO_JIT_TYPE) || !HAVE_MMAP |
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312 | #undef CORO_JIT |
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313 | #endif |
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314 | |
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315 | #if CORO_JIT |
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316 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
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317 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
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318 | #endif |
300 | |
319 | |
301 | /** Coro::Select ************************************************************/ |
320 | /** Coro::Select ************************************************************/ |
302 | |
321 | |
303 | static OP *(*coro_old_pp_sselect) (pTHX); |
322 | static OP *(*coro_old_pp_sselect) (pTHX); |
304 | static SV *coro_select_select; |
323 | static SV *coro_select_select; |
… | |
… | |
320 | |
339 | |
321 | /** time stuff **************************************************************/ |
340 | /** time stuff **************************************************************/ |
322 | |
341 | |
323 | #ifdef HAS_GETTIMEOFDAY |
342 | #ifdef HAS_GETTIMEOFDAY |
324 | |
343 | |
325 | static void |
344 | ecb_inline void |
326 | coro_u2time (pTHX_ UV ret[2]) |
345 | coro_u2time (pTHX_ UV ret[2]) |
327 | { |
346 | { |
328 | struct timeval tv; |
347 | struct timeval tv; |
329 | gettimeofday (&tv, 0); |
348 | gettimeofday (&tv, 0); |
330 | |
349 | |
331 | ret [0] = tv.tv_sec; |
350 | ret [0] = tv.tv_sec; |
332 | ret [1] = tv.tv_usec; |
351 | ret [1] = tv.tv_usec; |
333 | } |
352 | } |
334 | |
353 | |
335 | static double |
354 | ecb_inline double |
336 | coro_nvtime () |
355 | coro_nvtime (void) |
337 | { |
356 | { |
338 | struct timeval tv; |
357 | struct timeval tv; |
339 | gettimeofday (&tv, 0); |
358 | gettimeofday (&tv, 0); |
340 | |
359 | |
341 | return tv.tv_sec + tv.tv_usec * 1e-6; |
360 | return tv.tv_sec + tv.tv_usec * 1e-6; |
342 | } |
361 | } |
343 | |
362 | |
344 | static void |
363 | ecb_inline void |
345 | time_init (pTHX) |
364 | time_init (pTHX) |
346 | { |
365 | { |
347 | nvtime = coro_nvtime; |
366 | nvtime = coro_nvtime; |
348 | u2time = coro_u2time; |
367 | u2time = coro_u2time; |
349 | } |
368 | } |
350 | |
369 | |
351 | #else |
370 | #else |
352 | |
371 | |
353 | static void |
372 | ecb_inline void |
354 | time_init (pTHX) |
373 | time_init (pTHX) |
355 | { |
374 | { |
356 | SV **svp; |
375 | SV **svp; |
357 | |
376 | |
358 | require_pv ("Time/HiRes.pm"); |
377 | require_pv ("Time/HiRes.pm"); |
359 | |
378 | |
360 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
379 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
361 | |
380 | |
362 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
381 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
363 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
382 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
364 | |
383 | |
… | |
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370 | |
389 | |
371 | #endif |
390 | #endif |
372 | |
391 | |
373 | /** lowlevel stuff **********************************************************/ |
392 | /** lowlevel stuff **********************************************************/ |
374 | |
393 | |
375 | static SV * |
394 | static SV * ecb_noinline |
376 | coro_get_sv (pTHX_ const char *name, int create) |
395 | coro_get_sv (pTHX_ const char *name, int create) |
377 | { |
396 | { |
378 | #if PERL_VERSION_ATLEAST (5,10,0) |
397 | #if PERL_VERSION_ATLEAST (5,10,0) |
379 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
398 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
380 | get_sv (name, create); |
399 | get_sv (name, create); |
381 | #endif |
400 | #endif |
382 | return get_sv (name, create); |
401 | return get_sv (name, create); |
383 | } |
402 | } |
384 | |
403 | |
385 | static AV * |
404 | static AV * ecb_noinline |
386 | coro_get_av (pTHX_ const char *name, int create) |
405 | coro_get_av (pTHX_ const char *name, int create) |
387 | { |
406 | { |
388 | #if PERL_VERSION_ATLEAST (5,10,0) |
407 | #if PERL_VERSION_ATLEAST (5,10,0) |
389 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
408 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
390 | get_av (name, create); |
409 | get_av (name, create); |
391 | #endif |
410 | #endif |
392 | return get_av (name, create); |
411 | return get_av (name, create); |
393 | } |
412 | } |
394 | |
413 | |
395 | static HV * |
414 | static HV * ecb_noinline |
396 | coro_get_hv (pTHX_ const char *name, int create) |
415 | coro_get_hv (pTHX_ const char *name, int create) |
397 | { |
416 | { |
398 | #if PERL_VERSION_ATLEAST (5,10,0) |
417 | #if PERL_VERSION_ATLEAST (5,10,0) |
399 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
418 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
400 | get_hv (name, create); |
419 | get_hv (name, create); |
401 | #endif |
420 | #endif |
402 | return get_hv (name, create); |
421 | return get_hv (name, create); |
403 | } |
422 | } |
404 | |
423 | |
405 | INLINE void |
424 | ecb_inline void |
406 | coro_times_update () |
425 | coro_times_update (void) |
407 | { |
426 | { |
408 | #ifdef coro_clock_gettime |
427 | #ifdef coro_clock_gettime |
409 | struct timespec ts; |
428 | struct timespec ts; |
410 | |
429 | |
411 | ts.tv_sec = ts.tv_nsec = 0; |
430 | ts.tv_sec = ts.tv_nsec = 0; |
… | |
… | |
423 | time_real [0] = tv [0]; |
442 | time_real [0] = tv [0]; |
424 | time_real [1] = tv [1] * 1000; |
443 | time_real [1] = tv [1] * 1000; |
425 | #endif |
444 | #endif |
426 | } |
445 | } |
427 | |
446 | |
428 | INLINE void |
447 | ecb_inline void |
429 | coro_times_add (struct coro *c) |
448 | coro_times_add (struct coro *c) |
430 | { |
449 | { |
431 | c->t_real [1] += time_real [1]; |
450 | c->t_real [1] += time_real [1]; |
432 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
451 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
433 | c->t_real [0] += time_real [0]; |
452 | c->t_real [0] += time_real [0]; |
… | |
… | |
435 | c->t_cpu [1] += time_cpu [1]; |
454 | c->t_cpu [1] += time_cpu [1]; |
436 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
455 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
437 | c->t_cpu [0] += time_cpu [0]; |
456 | c->t_cpu [0] += time_cpu [0]; |
438 | } |
457 | } |
439 | |
458 | |
440 | INLINE void |
459 | ecb_inline void |
441 | coro_times_sub (struct coro *c) |
460 | coro_times_sub (struct coro *c) |
442 | { |
461 | { |
443 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
462 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
444 | c->t_real [1] -= time_real [1]; |
463 | c->t_real [1] -= time_real [1]; |
445 | c->t_real [0] -= time_real [0]; |
464 | c->t_real [0] -= time_real [0]; |
… | |
… | |
453 | /* magic glue */ |
472 | /* magic glue */ |
454 | |
473 | |
455 | #define CORO_MAGIC_type_cv 26 |
474 | #define CORO_MAGIC_type_cv 26 |
456 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
475 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
457 | |
476 | |
458 | #define CORO_MAGIC_NN(sv, type) \ |
477 | #define CORO_MAGIC_NN(sv, type) \ |
459 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
478 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
460 | ? SvMAGIC (sv) \ |
479 | ? SvMAGIC (sv) \ |
461 | : mg_find (sv, type)) |
480 | : mg_find (sv, type)) |
462 | |
481 | |
463 | #define CORO_MAGIC(sv, type) \ |
482 | #define CORO_MAGIC(sv, type) \ |
464 | (expect_true (SvMAGIC (sv)) \ |
483 | (ecb_expect_true (SvMAGIC (sv)) \ |
465 | ? CORO_MAGIC_NN (sv, type) \ |
484 | ? CORO_MAGIC_NN (sv, type) \ |
466 | : 0) |
485 | : 0) |
467 | |
486 | |
468 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
487 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
469 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
488 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
470 | |
489 | |
471 | INLINE struct coro * |
490 | ecb_inline MAGIC * |
|
|
491 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
492 | { |
|
|
493 | MAGIC *mg; |
|
|
494 | |
|
|
495 | if (ecb_expect_true ( |
|
|
496 | SvTYPE (coro) == SVt_PVHV |
|
|
497 | && (mg = CORO_MAGIC_state (coro)) |
|
|
498 | && mg->mg_virtual == &coro_state_vtbl |
|
|
499 | )) |
|
|
500 | return mg; |
|
|
501 | |
|
|
502 | return 0; |
|
|
503 | } |
|
|
504 | |
|
|
505 | ecb_inline struct coro * |
472 | SvSTATE_ (pTHX_ SV *coro) |
506 | SvSTATE_ (pTHX_ SV *coro) |
473 | { |
507 | { |
474 | HV *stash; |
|
|
475 | MAGIC *mg; |
508 | MAGIC *mg; |
476 | |
509 | |
477 | if (SvROK (coro)) |
510 | if (SvROK (coro)) |
478 | coro = SvRV (coro); |
511 | coro = SvRV (coro); |
479 | |
512 | |
480 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
513 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
514 | if (!mg) |
481 | croak ("Coro::State object required"); |
515 | croak ("Coro::State object required"); |
482 | |
516 | |
483 | stash = SvSTASH (coro); |
|
|
484 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
485 | { |
|
|
486 | /* very slow, but rare, check */ |
|
|
487 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
488 | croak ("Coro::State object required"); |
|
|
489 | } |
|
|
490 | |
|
|
491 | mg = CORO_MAGIC_state (coro); |
|
|
492 | return (struct coro *)mg->mg_ptr; |
517 | return (struct coro *)mg->mg_ptr; |
493 | } |
518 | } |
494 | |
519 | |
495 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
520 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
496 | |
521 | |
… | |
… | |
499 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
524 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
500 | |
525 | |
501 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
502 | /* padlist management and caching */ |
527 | /* padlist management and caching */ |
503 | |
528 | |
504 | static AV * |
529 | ecb_inline AV * |
505 | coro_derive_padlist (pTHX_ CV *cv) |
530 | coro_derive_padlist (pTHX_ CV *cv) |
506 | { |
531 | { |
507 | AV *padlist = CvPADLIST (cv); |
532 | AV *padlist = CvPADLIST (cv); |
508 | AV *newpadlist, *newpad; |
533 | AV *newpadlist, *newpad; |
509 | |
534 | |
… | |
… | |
521 | av_store (newpadlist, 1, (SV *)newpad); |
546 | av_store (newpadlist, 1, (SV *)newpad); |
522 | |
547 | |
523 | return newpadlist; |
548 | return newpadlist; |
524 | } |
549 | } |
525 | |
550 | |
526 | static void |
551 | ecb_inline void |
527 | free_padlist (pTHX_ AV *padlist) |
552 | free_padlist (pTHX_ AV *padlist) |
528 | { |
553 | { |
529 | /* may be during global destruction */ |
554 | /* may be during global destruction */ |
530 | if (!IN_DESTRUCT) |
555 | if (!IN_DESTRUCT) |
531 | { |
556 | { |
… | |
… | |
574 | 0, 0, 0, 0, |
599 | 0, 0, 0, 0, |
575 | coro_cv_free |
600 | coro_cv_free |
576 | }; |
601 | }; |
577 | |
602 | |
578 | /* the next two functions merely cache the padlists */ |
603 | /* the next two functions merely cache the padlists */ |
579 | static void |
604 | ecb_inline void |
580 | get_padlist (pTHX_ CV *cv) |
605 | get_padlist (pTHX_ CV *cv) |
581 | { |
606 | { |
582 | MAGIC *mg = CORO_MAGIC_cv (cv); |
607 | MAGIC *mg = CORO_MAGIC_cv (cv); |
583 | AV *av; |
608 | AV *av; |
584 | |
609 | |
585 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
610 | if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
586 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
611 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
587 | else |
612 | else |
588 | { |
613 | { |
589 | #if CORO_PREFER_PERL_FUNCTIONS |
614 | #if CORO_PREFER_PERL_FUNCTIONS |
590 | /* this is probably cleaner? but also slower! */ |
615 | /* this is probably cleaner? but also slower! */ |
… | |
… | |
597 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
622 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
598 | #endif |
623 | #endif |
599 | } |
624 | } |
600 | } |
625 | } |
601 | |
626 | |
602 | static void |
627 | ecb_inline void |
603 | put_padlist (pTHX_ CV *cv) |
628 | put_padlist (pTHX_ CV *cv) |
604 | { |
629 | { |
605 | MAGIC *mg = CORO_MAGIC_cv (cv); |
630 | MAGIC *mg = CORO_MAGIC_cv (cv); |
606 | AV *av; |
631 | AV *av; |
607 | |
632 | |
608 | if (expect_false (!mg)) |
633 | if (ecb_expect_false (!mg)) |
609 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
634 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
610 | |
635 | |
611 | av = (AV *)mg->mg_obj; |
636 | av = (AV *)mg->mg_obj; |
612 | |
637 | |
613 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
638 | if (ecb_expect_false (AvFILLp (av) >= AvMAX (av))) |
614 | av_extend (av, AvFILLp (av) + 1); |
639 | av_extend (av, AvFILLp (av) + 1); |
615 | |
640 | |
616 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
641 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
617 | } |
642 | } |
618 | |
643 | |
619 | /** load & save, init *******************************************************/ |
644 | /** load & save, init *******************************************************/ |
620 | |
645 | |
|
|
646 | ecb_inline void |
|
|
647 | swap_sv (SV *a, SV *b) |
|
|
648 | { |
|
|
649 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
650 | SV tmp; |
|
|
651 | |
|
|
652 | /* swap sv_any */ |
|
|
653 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
654 | |
|
|
655 | /* swap sv_flags */ |
|
|
656 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
657 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
658 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
659 | |
|
|
660 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
661 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
662 | * is much faster, so no quarrels here. alternatively, we could |
|
|
663 | * sv_upgrade to avoid this. |
|
|
664 | */ |
|
|
665 | { |
|
|
666 | /* swap sv_u */ |
|
|
667 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
668 | |
|
|
669 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
670 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
671 | */ |
|
|
672 | #define svany_in_head(type) \ |
|
|
673 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
674 | |
|
|
675 | if (svany_in_head (SvTYPE (a))) |
|
|
676 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
677 | |
|
|
678 | if (svany_in_head (SvTYPE (b))) |
|
|
679 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
680 | } |
|
|
681 | #endif |
|
|
682 | } |
|
|
683 | |
621 | /* swap sv heads, at least logically */ |
684 | /* swap sv heads, at least logically */ |
622 | static void |
685 | static void |
623 | swap_svs (pTHX_ Coro__State c) |
686 | swap_svs (pTHX_ Coro__State c) |
624 | { |
687 | { |
625 | int i; |
688 | int i; |
626 | |
689 | |
627 | for (i = 0; i <= AvFILLp (c->swap_sv); ) |
690 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
628 | { |
691 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
629 | SV *a = AvARRAY (c->swap_sv)[i++]; |
|
|
630 | SV *b = AvARRAY (c->swap_sv)[i++]; |
|
|
631 | |
|
|
632 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
633 | SV tmp; |
|
|
634 | |
|
|
635 | /* swap sv_any */ |
|
|
636 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
637 | |
|
|
638 | /* swap sv_flags */ |
|
|
639 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
640 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
641 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
642 | |
|
|
643 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
644 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
|
|
645 | * much faster, so no quarrels here. alternatively, we could |
|
|
646 | * sv_upgrade to avoid this. |
|
|
647 | */ |
|
|
648 | { |
|
|
649 | /* swap sv_u */ |
|
|
650 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
651 | |
|
|
652 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
653 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
654 | */ |
|
|
655 | #define svany_in_head(type) \ |
|
|
656 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
657 | |
|
|
658 | if (svany_in_head (SvTYPE (a))) |
|
|
659 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
660 | |
|
|
661 | if (svany_in_head (SvTYPE (b))) |
|
|
662 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
663 | } |
|
|
664 | #endif |
|
|
665 | } |
|
|
666 | } |
692 | } |
667 | |
693 | |
668 | #define SWAP_SVS(coro) \ |
694 | #define SWAP_SVS(coro) \ |
669 | if (expect_false ((coro)->swap_sv)) \ |
695 | if (ecb_expect_false ((coro)->swap_sv)) \ |
670 | swap_svs (aTHX_ (coro)) |
696 | swap_svs (aTHX_ (coro)) |
671 | |
697 | |
672 | static void |
698 | static void |
673 | on_enterleave_call (pTHX_ SV *cb); |
699 | on_enterleave_call (pTHX_ SV *cb); |
674 | |
700 | |
… | |
… | |
678 | perl_slots *slot = c->slot; |
704 | perl_slots *slot = c->slot; |
679 | c->slot = 0; |
705 | c->slot = 0; |
680 | |
706 | |
681 | PL_mainstack = c->mainstack; |
707 | PL_mainstack = c->mainstack; |
682 | |
708 | |
683 | GvSV (PL_defgv) = slot->defsv; |
709 | #if CORO_JIT |
684 | GvAV (PL_defgv) = slot->defav; |
710 | load_perl_slots (slot); |
685 | GvSV (PL_errgv) = slot->errsv; |
711 | #else |
686 | GvSV (irsgv) = slot->irsgv; |
|
|
687 | GvHV (PL_hintgv) = slot->hinthv; |
|
|
688 | |
|
|
689 | #define VAR(name,type) PL_ ## name = slot->name; |
712 | #define VARx(name,expr,type) expr = slot->name; |
690 | # include "state.h" |
713 | #include "state.h" |
691 | #undef VAR |
714 | #endif |
692 | |
715 | |
693 | { |
716 | { |
694 | dSP; |
717 | dSP; |
695 | |
718 | |
696 | CV *cv; |
719 | CV *cv; |
697 | |
720 | |
698 | /* now do the ugly restore mess */ |
721 | /* now do the ugly restore mess */ |
699 | while (expect_true (cv = (CV *)POPs)) |
722 | while (ecb_expect_true (cv = (CV *)POPs)) |
700 | { |
723 | { |
701 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
724 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
702 | CvDEPTH (cv) = PTR2IV (POPs); |
725 | CvDEPTH (cv) = PTR2IV (POPs); |
703 | CvPADLIST (cv) = (AV *)POPs; |
726 | CvPADLIST (cv) = (AV *)POPs; |
704 | } |
727 | } |
… | |
… | |
707 | } |
730 | } |
708 | |
731 | |
709 | slf_frame = c->slf_frame; |
732 | slf_frame = c->slf_frame; |
710 | CORO_THROW = c->except; |
733 | CORO_THROW = c->except; |
711 | |
734 | |
712 | if (expect_false (enable_times)) |
735 | if (ecb_expect_false (enable_times)) |
713 | { |
736 | { |
714 | if (expect_false (!times_valid)) |
737 | if (ecb_expect_false (!times_valid)) |
715 | coro_times_update (); |
738 | coro_times_update (); |
716 | |
739 | |
717 | coro_times_sub (c); |
740 | coro_times_sub (c); |
718 | } |
741 | } |
719 | |
742 | |
720 | if (expect_false (c->on_enter)) |
743 | if (ecb_expect_false (c->on_enter)) |
721 | { |
744 | { |
722 | int i; |
745 | int i; |
723 | |
746 | |
724 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
747 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
725 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
748 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
… | |
… | |
731 | static void |
754 | static void |
732 | save_perl (pTHX_ Coro__State c) |
755 | save_perl (pTHX_ Coro__State c) |
733 | { |
756 | { |
734 | SWAP_SVS (c); |
757 | SWAP_SVS (c); |
735 | |
758 | |
736 | if (expect_false (c->on_leave)) |
759 | if (ecb_expect_false (c->on_leave)) |
737 | { |
760 | { |
738 | int i; |
761 | int i; |
739 | |
762 | |
740 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
763 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
741 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
764 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
742 | } |
765 | } |
743 | |
766 | |
744 | times_valid = 0; |
767 | times_valid = 0; |
745 | |
768 | |
746 | if (expect_false (enable_times)) |
769 | if (ecb_expect_false (enable_times)) |
747 | { |
770 | { |
748 | coro_times_update (); times_valid = 1; |
771 | coro_times_update (); times_valid = 1; |
749 | coro_times_add (c); |
772 | coro_times_add (c); |
750 | } |
773 | } |
751 | |
774 | |
… | |
… | |
765 | |
788 | |
766 | XPUSHs (Nullsv); |
789 | XPUSHs (Nullsv); |
767 | /* this loop was inspired by pp_caller */ |
790 | /* this loop was inspired by pp_caller */ |
768 | for (;;) |
791 | for (;;) |
769 | { |
792 | { |
770 | while (expect_true (cxix >= 0)) |
793 | while (ecb_expect_true (cxix >= 0)) |
771 | { |
794 | { |
772 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
795 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
773 | |
796 | |
774 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
797 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
775 | { |
798 | { |
776 | CV *cv = cx->blk_sub.cv; |
799 | CV *cv = cx->blk_sub.cv; |
777 | |
800 | |
778 | if (expect_true (CvDEPTH (cv))) |
801 | if (ecb_expect_true (CvDEPTH (cv))) |
779 | { |
802 | { |
780 | EXTEND (SP, 3); |
803 | EXTEND (SP, 3); |
781 | PUSHs ((SV *)CvPADLIST (cv)); |
804 | PUSHs ((SV *)CvPADLIST (cv)); |
782 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
805 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
783 | PUSHs ((SV *)cv); |
806 | PUSHs ((SV *)cv); |
… | |
… | |
786 | get_padlist (aTHX_ cv); |
809 | get_padlist (aTHX_ cv); |
787 | } |
810 | } |
788 | } |
811 | } |
789 | } |
812 | } |
790 | |
813 | |
791 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
814 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
792 | break; |
815 | break; |
793 | |
816 | |
794 | top_si = top_si->si_prev; |
817 | top_si = top_si->si_prev; |
795 | ccstk = top_si->si_cxstack; |
818 | ccstk = top_si->si_cxstack; |
796 | cxix = top_si->si_cxix; |
819 | cxix = top_si->si_cxix; |
… | |
… | |
798 | |
821 | |
799 | PUTBACK; |
822 | PUTBACK; |
800 | } |
823 | } |
801 | |
824 | |
802 | /* allocate some space on the context stack for our purposes */ |
825 | /* allocate some space on the context stack for our purposes */ |
803 | /* we manually unroll here, as usually 2 slots is enough */ |
826 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
804 | if (SLOT_COUNT >= 1) CXINC; |
|
|
805 | if (SLOT_COUNT >= 2) CXINC; |
|
|
806 | if (SLOT_COUNT >= 3) CXINC; |
|
|
807 | { |
827 | { |
808 | unsigned int i; |
828 | unsigned int i; |
|
|
829 | |
809 | for (i = 3; i < SLOT_COUNT; ++i) |
830 | for (i = 0; i < SLOT_COUNT; ++i) |
810 | CXINC; |
831 | CXINC; |
811 | } |
832 | |
812 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
833 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
834 | } |
813 | |
835 | |
814 | c->mainstack = PL_mainstack; |
836 | c->mainstack = PL_mainstack; |
815 | |
837 | |
816 | { |
838 | { |
817 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
839 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
818 | |
840 | |
819 | slot->defav = GvAV (PL_defgv); |
841 | #if CORO_JIT |
820 | slot->defsv = DEFSV; |
842 | save_perl_slots (slot); |
821 | slot->errsv = ERRSV; |
843 | #else |
822 | slot->irsgv = GvSV (irsgv); |
|
|
823 | slot->hinthv = GvHV (PL_hintgv); |
|
|
824 | |
|
|
825 | #define VAR(name,type) slot->name = PL_ ## name; |
844 | #define VARx(name,expr,type) slot->name = expr; |
826 | # include "state.h" |
845 | #include "state.h" |
827 | #undef VAR |
846 | #endif |
828 | } |
847 | } |
829 | } |
848 | } |
830 | |
849 | |
831 | /* |
850 | /* |
832 | * allocate various perl stacks. This is almost an exact copy |
851 | * allocate various perl stacks. This is almost an exact copy |
… | |
… | |
838 | # define coro_init_stacks(thx) init_stacks () |
857 | # define coro_init_stacks(thx) init_stacks () |
839 | #else |
858 | #else |
840 | static void |
859 | static void |
841 | coro_init_stacks (pTHX) |
860 | coro_init_stacks (pTHX) |
842 | { |
861 | { |
843 | PL_curstackinfo = new_stackinfo(32, 8); |
862 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
844 | PL_curstackinfo->si_type = PERLSI_MAIN; |
863 | PL_curstackinfo->si_type = PERLSI_MAIN; |
845 | PL_curstack = PL_curstackinfo->si_stack; |
864 | PL_curstack = PL_curstackinfo->si_stack; |
846 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
865 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
847 | |
866 | |
848 | PL_stack_base = AvARRAY(PL_curstack); |
867 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
863 | #endif |
882 | #endif |
864 | |
883 | |
865 | New(54,PL_scopestack,8,I32); |
884 | New(54,PL_scopestack,8,I32); |
866 | PL_scopestack_ix = 0; |
885 | PL_scopestack_ix = 0; |
867 | PL_scopestack_max = 8; |
886 | PL_scopestack_max = 8; |
|
|
887 | #if HAS_SCOPESTACK_NAME |
|
|
888 | New(54,PL_scopestack_name,8,const char*); |
|
|
889 | #endif |
868 | |
890 | |
869 | New(54,PL_savestack,24,ANY); |
891 | New(54,PL_savestack,24,ANY); |
870 | PL_savestack_ix = 0; |
892 | PL_savestack_ix = 0; |
871 | PL_savestack_max = 24; |
893 | PL_savestack_max = 24; |
872 | |
894 | |
… | |
… | |
900 | } |
922 | } |
901 | |
923 | |
902 | Safefree (PL_tmps_stack); |
924 | Safefree (PL_tmps_stack); |
903 | Safefree (PL_markstack); |
925 | Safefree (PL_markstack); |
904 | Safefree (PL_scopestack); |
926 | Safefree (PL_scopestack); |
|
|
927 | #if HAS_SCOPESTACK_NAME |
|
|
928 | Safefree (PL_scopestack_name); |
|
|
929 | #endif |
905 | Safefree (PL_savestack); |
930 | Safefree (PL_savestack); |
906 | #if !PERL_VERSION_ATLEAST (5,10,0) |
931 | #if !PERL_VERSION_ATLEAST (5,10,0) |
907 | Safefree (PL_retstack); |
932 | Safefree (PL_retstack); |
908 | #endif |
933 | #endif |
909 | } |
934 | } |
… | |
… | |
955 | #endif |
980 | #endif |
956 | |
981 | |
957 | /* |
982 | /* |
958 | * This overrides the default magic get method of %SIG elements. |
983 | * This overrides the default magic get method of %SIG elements. |
959 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
984 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
960 | * and instead of trying to save and restore the hash elements, we just provide |
985 | * and instead of trying to save and restore the hash elements (extremely slow), |
961 | * readback here. |
986 | * we just provide our own readback here. |
962 | */ |
987 | */ |
963 | static int |
988 | static int ecb_cold |
964 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
989 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
965 | { |
990 | { |
966 | const char *s = MgPV_nolen_const (mg); |
991 | const char *s = MgPV_nolen_const (mg); |
967 | |
992 | |
968 | if (*s == '_') |
993 | if (*s == '_') |
969 | { |
994 | { |
970 | SV **svp = 0; |
995 | SV **svp = 0; |
971 | |
996 | |
972 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
997 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
973 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
998 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
974 | |
999 | |
975 | if (svp) |
1000 | if (svp) |
976 | { |
1001 | { |
977 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
1002 | SV *ssv; |
|
|
1003 | |
|
|
1004 | if (!*svp) |
|
|
1005 | ssv = &PL_sv_undef; |
|
|
1006 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1007 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1008 | else |
|
|
1009 | ssv = *svp; |
|
|
1010 | |
|
|
1011 | sv_setsv (sv, ssv); |
978 | return 0; |
1012 | return 0; |
979 | } |
1013 | } |
980 | } |
1014 | } |
981 | |
1015 | |
982 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
1016 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
983 | } |
1017 | } |
984 | |
1018 | |
985 | static int |
1019 | static int ecb_cold |
986 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
1020 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
987 | { |
1021 | { |
988 | const char *s = MgPV_nolen_const (mg); |
1022 | const char *s = MgPV_nolen_const (mg); |
989 | |
1023 | |
990 | if (*s == '_') |
1024 | if (*s == '_') |
… | |
… | |
1004 | } |
1038 | } |
1005 | |
1039 | |
1006 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1040 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1007 | } |
1041 | } |
1008 | |
1042 | |
1009 | static int |
1043 | static int ecb_cold |
1010 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1044 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1011 | { |
1045 | { |
1012 | const char *s = MgPV_nolen_const (mg); |
1046 | const char *s = MgPV_nolen_const (mg); |
1013 | |
1047 | |
1014 | if (*s == '_') |
1048 | if (*s == '_') |
… | |
… | |
1049 | return 1; |
1083 | return 1; |
1050 | } |
1084 | } |
1051 | |
1085 | |
1052 | static UNOP init_perl_op; |
1086 | static UNOP init_perl_op; |
1053 | |
1087 | |
1054 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
1088 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
1055 | init_perl (pTHX_ struct coro *coro) |
1089 | init_perl (pTHX_ struct coro *coro) |
1056 | { |
1090 | { |
1057 | /* |
1091 | /* |
1058 | * emulate part of the perl startup here. |
1092 | * emulate part of the perl startup here. |
1059 | */ |
1093 | */ |
… | |
… | |
1074 | PL_parser = 0; |
1108 | PL_parser = 0; |
1075 | #endif |
1109 | #endif |
1076 | PL_hints = 0; |
1110 | PL_hints = 0; |
1077 | |
1111 | |
1078 | /* recreate the die/warn hooks */ |
1112 | /* recreate the die/warn hooks */ |
1079 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1113 | PL_diehook = SvREFCNT_inc (rv_diehook); |
1080 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1114 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
1081 | |
1115 | |
1082 | GvSV (PL_defgv) = newSV (0); |
1116 | GvSV (PL_defgv) = newSV (0); |
1083 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1117 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1084 | GvSV (PL_errgv) = newSV (0); |
1118 | GvSV (PL_errgv) = newSV (0); |
1085 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1119 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1086 | GvHV (PL_hintgv) = 0; |
1120 | GvHV (PL_hintgv) = 0; |
… | |
… | |
1106 | /* this newly created coroutine might be run on an existing cctx which most |
1140 | /* this newly created coroutine might be run on an existing cctx which most |
1107 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1141 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1108 | */ |
1142 | */ |
1109 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1143 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1110 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
1144 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1145 | slf_frame.destroy = 0; |
1111 | |
1146 | |
1112 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
1147 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
1113 | init_perl_op.op_next = PL_op; |
1148 | init_perl_op.op_next = PL_op; |
1114 | init_perl_op.op_type = OP_ENTERSUB; |
1149 | init_perl_op.op_type = OP_ENTERSUB; |
1115 | init_perl_op.op_ppaddr = pp_slf; |
1150 | init_perl_op.op_ppaddr = pp_slf; |
… | |
… | |
1120 | /* copy throw, in case it was set before init_perl */ |
1155 | /* copy throw, in case it was set before init_perl */ |
1121 | CORO_THROW = coro->except; |
1156 | CORO_THROW = coro->except; |
1122 | |
1157 | |
1123 | SWAP_SVS (coro); |
1158 | SWAP_SVS (coro); |
1124 | |
1159 | |
1125 | if (expect_false (enable_times)) |
1160 | if (ecb_expect_false (enable_times)) |
1126 | { |
1161 | { |
1127 | coro_times_update (); |
1162 | coro_times_update (); |
1128 | coro_times_sub (coro); |
1163 | coro_times_sub (coro); |
1129 | } |
1164 | } |
1130 | } |
1165 | } |
… | |
… | |
1154 | destroy_perl (pTHX_ struct coro *coro) |
1189 | destroy_perl (pTHX_ struct coro *coro) |
1155 | { |
1190 | { |
1156 | SV *svf [9]; |
1191 | SV *svf [9]; |
1157 | |
1192 | |
1158 | { |
1193 | { |
|
|
1194 | SV *old_current = SvRV (coro_current); |
1159 | struct coro *current = SvSTATE_current; |
1195 | struct coro *current = SvSTATE (old_current); |
1160 | |
1196 | |
1161 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
1197 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
1162 | |
1198 | |
1163 | save_perl (aTHX_ current); |
1199 | save_perl (aTHX_ current); |
|
|
1200 | |
|
|
1201 | /* this will cause transfer_check to croak on block*/ |
|
|
1202 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1203 | |
1164 | load_perl (aTHX_ coro); |
1204 | load_perl (aTHX_ coro); |
1165 | |
1205 | |
1166 | coro_unwind_stacks (aTHX); |
1206 | coro_unwind_stacks (aTHX); |
1167 | coro_destruct_stacks (aTHX); |
|
|
1168 | |
1207 | |
1169 | /* restore swapped sv's */ |
1208 | /* restore swapped sv's */ |
1170 | SWAP_SVS (coro); |
1209 | SWAP_SVS (coro); |
1171 | |
1210 | |
|
|
1211 | coro_destruct_stacks (aTHX); |
|
|
1212 | |
1172 | // now save some sv's to be free'd later |
1213 | /* now save some sv's to be free'd later */ |
1173 | svf [0] = GvSV (PL_defgv); |
1214 | svf [0] = GvSV (PL_defgv); |
1174 | svf [1] = (SV *)GvAV (PL_defgv); |
1215 | svf [1] = (SV *)GvAV (PL_defgv); |
1175 | svf [2] = GvSV (PL_errgv); |
1216 | svf [2] = GvSV (PL_errgv); |
1176 | svf [3] = (SV *)PL_defoutgv; |
1217 | svf [3] = (SV *)PL_defoutgv; |
1177 | svf [4] = PL_rs; |
1218 | svf [4] = PL_rs; |
… | |
… | |
1179 | svf [6] = (SV *)GvHV (PL_hintgv); |
1220 | svf [6] = (SV *)GvHV (PL_hintgv); |
1180 | svf [7] = PL_diehook; |
1221 | svf [7] = PL_diehook; |
1181 | svf [8] = PL_warnhook; |
1222 | svf [8] = PL_warnhook; |
1182 | assert (9 == sizeof (svf) / sizeof (*svf)); |
1223 | assert (9 == sizeof (svf) / sizeof (*svf)); |
1183 | |
1224 | |
|
|
1225 | SvRV_set (coro_current, old_current); |
|
|
1226 | |
1184 | load_perl (aTHX_ current); |
1227 | load_perl (aTHX_ current); |
1185 | } |
1228 | } |
1186 | |
1229 | |
1187 | { |
1230 | { |
1188 | unsigned int i; |
1231 | unsigned int i; |
… | |
… | |
1195 | SvREFCNT_dec (coro->invoke_cb); |
1238 | SvREFCNT_dec (coro->invoke_cb); |
1196 | SvREFCNT_dec (coro->invoke_av); |
1239 | SvREFCNT_dec (coro->invoke_av); |
1197 | } |
1240 | } |
1198 | } |
1241 | } |
1199 | |
1242 | |
1200 | INLINE void |
1243 | ecb_inline void |
1201 | free_coro_mortal (pTHX) |
1244 | free_coro_mortal (pTHX) |
1202 | { |
1245 | { |
1203 | if (expect_true (coro_mortal)) |
1246 | if (ecb_expect_true (coro_mortal)) |
1204 | { |
1247 | { |
1205 | SvREFCNT_dec (coro_mortal); |
1248 | SvREFCNT_dec ((SV *)coro_mortal); |
1206 | coro_mortal = 0; |
1249 | coro_mortal = 0; |
1207 | } |
1250 | } |
1208 | } |
1251 | } |
1209 | |
1252 | |
1210 | static int |
1253 | static int |
… | |
… | |
1343 | |
1386 | |
1344 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
1387 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
1345 | } |
1388 | } |
1346 | |
1389 | |
1347 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1390 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1348 | static void NOINLINE |
1391 | static void ecb_noinline |
1349 | cctx_prepare (pTHX) |
1392 | cctx_prepare (pTHX) |
1350 | { |
1393 | { |
1351 | PL_top_env = &PL_start_env; |
1394 | PL_top_env = &PL_start_env; |
1352 | |
1395 | |
1353 | if (cctx_current->flags & CC_TRACE) |
1396 | if (cctx_current->flags & CC_TRACE) |
… | |
… | |
1364 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1407 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1365 | slf_frame.check = slf_check_set_stacklevel; |
1408 | slf_frame.check = slf_check_set_stacklevel; |
1366 | } |
1409 | } |
1367 | |
1410 | |
1368 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1411 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1369 | INLINE void |
1412 | ecb_inline void |
1370 | transfer_tail (pTHX) |
1413 | transfer_tail (pTHX) |
1371 | { |
1414 | { |
1372 | free_coro_mortal (aTHX); |
1415 | free_coro_mortal (aTHX); |
|
|
1416 | } |
|
|
1417 | |
|
|
1418 | /* try to exit the same way perl's main function would do */ |
|
|
1419 | /* we do not bother resetting the environment or other things *7 |
|
|
1420 | /* that are not, uhm, essential */ |
|
|
1421 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1422 | static void ecb_noinline ecb_cold |
|
|
1423 | perlish_exit (pTHX) |
|
|
1424 | { |
|
|
1425 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1426 | perl_free (PL_curinterp); |
|
|
1427 | exit (exitstatus); |
1373 | } |
1428 | } |
1374 | |
1429 | |
1375 | /* |
1430 | /* |
1376 | * this is a _very_ stripped down perl interpreter ;) |
1431 | * this is a _very_ stripped down perl interpreter ;) |
1377 | */ |
1432 | */ |
… | |
… | |
1406 | */ |
1461 | */ |
1407 | |
1462 | |
1408 | /* |
1463 | /* |
1409 | * If perl-run returns we assume exit() was being called or the coro |
1464 | * If perl-run returns we assume exit() was being called or the coro |
1410 | * fell off the end, which seems to be the only valid (non-bug) |
1465 | * fell off the end, which seems to be the only valid (non-bug) |
1411 | * reason for perl_run to return. We try to exit by jumping to the |
1466 | * reason for perl_run to return. We try to mimic whatever perl is normally |
1412 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1467 | * doing in that case. YMMV. |
1413 | * coroutine as Coro has no such concept. |
|
|
1414 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1415 | * that backend are too broken to do it in a standards-compliant way. |
|
|
1416 | */ |
1468 | */ |
1417 | PL_top_env = main_top_env; |
1469 | perlish_exit (aTHX); |
1418 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1419 | } |
1470 | } |
1420 | } |
1471 | } |
1421 | |
1472 | |
1422 | static coro_cctx * |
1473 | static coro_cctx * |
1423 | cctx_new () |
1474 | cctx_new (void) |
1424 | { |
1475 | { |
1425 | coro_cctx *cctx; |
1476 | coro_cctx *cctx; |
1426 | |
1477 | |
1427 | ++cctx_count; |
1478 | ++cctx_count; |
1428 | New (0, cctx, 1, coro_cctx); |
1479 | New (0, cctx, 1, coro_cctx); |
… | |
… | |
1434 | return cctx; |
1485 | return cctx; |
1435 | } |
1486 | } |
1436 | |
1487 | |
1437 | /* create a new cctx only suitable as source */ |
1488 | /* create a new cctx only suitable as source */ |
1438 | static coro_cctx * |
1489 | static coro_cctx * |
1439 | cctx_new_empty () |
1490 | cctx_new_empty (void) |
1440 | { |
1491 | { |
1441 | coro_cctx *cctx = cctx_new (); |
1492 | coro_cctx *cctx = cctx_new (); |
1442 | |
1493 | |
1443 | cctx->sptr = 0; |
1494 | cctx->sptr = 0; |
1444 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
1495 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
… | |
… | |
1446 | return cctx; |
1497 | return cctx; |
1447 | } |
1498 | } |
1448 | |
1499 | |
1449 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1500 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1450 | static coro_cctx * |
1501 | static coro_cctx * |
1451 | cctx_new_run () |
1502 | cctx_new_run (void) |
1452 | { |
1503 | { |
1453 | coro_cctx *cctx = cctx_new (); |
1504 | coro_cctx *cctx = cctx_new (); |
1454 | void *stack_start; |
1505 | void *stack_start; |
1455 | size_t stack_size; |
1506 | size_t stack_size; |
1456 | |
1507 | |
1457 | #if HAVE_MMAP |
1508 | #if HAVE_MMAP |
1458 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1509 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1459 | /* mmap supposedly does allocate-on-write for us */ |
1510 | /* mmap supposedly does allocate-on-write for us */ |
1460 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1511 | cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0); |
1461 | |
1512 | |
1462 | if (cctx->sptr != (void *)-1) |
1513 | if (cctx->sptr != (void *)-1) |
1463 | { |
1514 | { |
1464 | #if CORO_STACKGUARD |
1515 | #if CORO_STACKGUARD |
1465 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1516 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
… | |
… | |
1526 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1577 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1527 | |
1578 | |
1528 | static coro_cctx * |
1579 | static coro_cctx * |
1529 | cctx_get (pTHX) |
1580 | cctx_get (pTHX) |
1530 | { |
1581 | { |
1531 | while (expect_true (cctx_first)) |
1582 | while (ecb_expect_true (cctx_first)) |
1532 | { |
1583 | { |
1533 | coro_cctx *cctx = cctx_first; |
1584 | coro_cctx *cctx = cctx_first; |
1534 | cctx_first = cctx->next; |
1585 | cctx_first = cctx->next; |
1535 | --cctx_idle; |
1586 | --cctx_idle; |
1536 | |
1587 | |
1537 | if (expect_true (!CCTX_EXPIRED (cctx))) |
1588 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
1538 | return cctx; |
1589 | return cctx; |
1539 | |
1590 | |
1540 | cctx_destroy (cctx); |
1591 | cctx_destroy (cctx); |
1541 | } |
1592 | } |
1542 | |
1593 | |
… | |
… | |
1547 | cctx_put (coro_cctx *cctx) |
1598 | cctx_put (coro_cctx *cctx) |
1548 | { |
1599 | { |
1549 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1600 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1550 | |
1601 | |
1551 | /* free another cctx if overlimit */ |
1602 | /* free another cctx if overlimit */ |
1552 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1603 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
1553 | { |
1604 | { |
1554 | coro_cctx *first = cctx_first; |
1605 | coro_cctx *first = cctx_first; |
1555 | cctx_first = first->next; |
1606 | cctx_first = first->next; |
1556 | --cctx_idle; |
1607 | --cctx_idle; |
1557 | |
1608 | |
… | |
… | |
1568 | static void |
1619 | static void |
1569 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1620 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1570 | { |
1621 | { |
1571 | /* TODO: throwing up here is considered harmful */ |
1622 | /* TODO: throwing up here is considered harmful */ |
1572 | |
1623 | |
1573 | if (expect_true (prev != next)) |
1624 | if (ecb_expect_true (prev != next)) |
1574 | { |
1625 | { |
1575 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1626 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1576 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1627 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1577 | |
1628 | |
1578 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1629 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1579 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1630 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1580 | |
1631 | |
1581 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1632 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1582 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1633 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
1583 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1634 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1584 | #endif |
1635 | #endif |
1585 | } |
1636 | } |
1586 | } |
1637 | } |
1587 | |
1638 | |
1588 | /* always use the TRANSFER macro */ |
1639 | /* always use the TRANSFER macro */ |
1589 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1640 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
1590 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1641 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1591 | { |
1642 | { |
1592 | dSTACKLEVEL; |
1643 | dSTACKLEVEL; |
1593 | |
1644 | |
1594 | /* sometimes transfer is only called to set idle_sp */ |
1645 | /* sometimes transfer is only called to set idle_sp */ |
1595 | if (expect_false (!prev)) |
1646 | if (ecb_expect_false (!prev)) |
1596 | { |
1647 | { |
1597 | cctx_current->idle_sp = STACKLEVEL; |
1648 | cctx_current->idle_sp = STACKLEVEL; |
1598 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1649 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1599 | } |
1650 | } |
1600 | else if (expect_true (prev != next)) |
1651 | else if (ecb_expect_true (prev != next)) |
1601 | { |
1652 | { |
1602 | coro_cctx *cctx_prev; |
1653 | coro_cctx *cctx_prev; |
1603 | |
1654 | |
1604 | if (expect_false (prev->flags & CF_NEW)) |
1655 | if (ecb_expect_false (prev->flags & CF_NEW)) |
1605 | { |
1656 | { |
1606 | /* create a new empty/source context */ |
1657 | /* create a new empty/source context */ |
1607 | prev->flags &= ~CF_NEW; |
1658 | prev->flags &= ~CF_NEW; |
1608 | prev->flags |= CF_RUNNING; |
1659 | prev->flags |= CF_RUNNING; |
1609 | } |
1660 | } |
… | |
… | |
1612 | next->flags |= CF_RUNNING; |
1663 | next->flags |= CF_RUNNING; |
1613 | |
1664 | |
1614 | /* first get rid of the old state */ |
1665 | /* first get rid of the old state */ |
1615 | save_perl (aTHX_ prev); |
1666 | save_perl (aTHX_ prev); |
1616 | |
1667 | |
1617 | if (expect_false (next->flags & CF_NEW)) |
1668 | if (ecb_expect_false (next->flags & CF_NEW)) |
1618 | { |
1669 | { |
1619 | /* need to start coroutine */ |
1670 | /* need to start coroutine */ |
1620 | next->flags &= ~CF_NEW; |
1671 | next->flags &= ~CF_NEW; |
1621 | /* setup coroutine call */ |
1672 | /* setup coroutine call */ |
1622 | init_perl (aTHX_ next); |
1673 | init_perl (aTHX_ next); |
1623 | } |
1674 | } |
1624 | else |
1675 | else |
1625 | load_perl (aTHX_ next); |
1676 | load_perl (aTHX_ next); |
1626 | |
1677 | |
1627 | /* possibly untie and reuse the cctx */ |
1678 | /* possibly untie and reuse the cctx */ |
1628 | if (expect_true ( |
1679 | if (ecb_expect_true ( |
1629 | cctx_current->idle_sp == STACKLEVEL |
1680 | cctx_current->idle_sp == STACKLEVEL |
1630 | && !(cctx_current->flags & CC_TRACE) |
1681 | && !(cctx_current->flags & CC_TRACE) |
1631 | && !force_cctx |
1682 | && !force_cctx |
1632 | )) |
1683 | )) |
1633 | { |
1684 | { |
1634 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1685 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1635 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1686 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1636 | |
1687 | |
1637 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1688 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1638 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1689 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1639 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1690 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
1640 | if (expect_true (!next->cctx)) |
1691 | if (ecb_expect_true (!next->cctx)) |
1641 | next->cctx = cctx_get (aTHX); |
1692 | next->cctx = cctx_get (aTHX); |
1642 | |
1693 | |
1643 | cctx_put (cctx_current); |
1694 | cctx_put (cctx_current); |
1644 | } |
1695 | } |
1645 | else |
1696 | else |
1646 | prev->cctx = cctx_current; |
1697 | prev->cctx = cctx_current; |
1647 | |
1698 | |
1648 | ++next->usecount; |
1699 | ++next->usecount; |
1649 | |
1700 | |
1650 | cctx_prev = cctx_current; |
1701 | cctx_prev = cctx_current; |
1651 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1702 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1652 | |
1703 | |
1653 | next->cctx = 0; |
1704 | next->cctx = 0; |
1654 | |
1705 | |
1655 | if (expect_false (cctx_prev != cctx_current)) |
1706 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1656 | { |
1707 | { |
1657 | cctx_prev->top_env = PL_top_env; |
1708 | cctx_prev->top_env = PL_top_env; |
1658 | PL_top_env = cctx_current->top_env; |
1709 | PL_top_env = cctx_current->top_env; |
1659 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1710 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1660 | } |
1711 | } |
… | |
… | |
1666 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1717 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1667 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1718 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1668 | |
1719 | |
1669 | /** high level stuff ********************************************************/ |
1720 | /** high level stuff ********************************************************/ |
1670 | |
1721 | |
|
|
1722 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1723 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
|
|
1724 | static void |
|
|
1725 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1726 | |
1671 | static void |
1727 | static void |
1672 | coro_state_destroy (pTHX_ struct coro *coro) |
1728 | coro_state_destroy (pTHX_ struct coro *coro) |
1673 | { |
1729 | { |
1674 | if (coro->flags & CF_DESTROYED) |
1730 | if (coro->flags & CF_ZOMBIE) |
1675 | return; |
1731 | return; |
1676 | |
1732 | |
1677 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
1678 | if (coro->on_destroy && !PL_dirty) |
|
|
1679 | coro->on_destroy (aTHX_ coro); |
1733 | slf_destroy (aTHX_ coro); |
1680 | |
1734 | |
1681 | /* |
|
|
1682 | * The on_destroy above most likely is from an SLF call. |
|
|
1683 | * Since by definition the SLF call will not finish when we destroy |
|
|
1684 | * the coro, we will have to force-finish it here, otherwise |
|
|
1685 | * cleanup functions cannot call SLF functions. |
|
|
1686 | */ |
|
|
1687 | coro->slf_frame.prepare = 0; |
|
|
1688 | |
|
|
1689 | coro->flags |= CF_DESTROYED; |
1735 | coro->flags |= CF_ZOMBIE; |
1690 | |
1736 | |
1691 | if (coro->flags & CF_READY) |
1737 | if (coro->flags & CF_READY) |
1692 | { |
1738 | { |
1693 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1739 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1694 | /* alternative: look through all ready queues and remove the coro */ |
1740 | /* alternative: look through all ready queues and remove the coro */ |
1695 | --coro_nready; |
1741 | --coro_nready; |
1696 | } |
1742 | } |
1697 | else |
1743 | else |
1698 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1744 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
|
|
1745 | |
|
|
1746 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1747 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1748 | if (coro == coro_first) coro_first = coro->next; |
1699 | |
1749 | |
1700 | if (coro->mainstack |
1750 | if (coro->mainstack |
1701 | && coro->mainstack != main_mainstack |
1751 | && coro->mainstack != main_mainstack |
1702 | && coro->slot |
1752 | && coro->slot |
1703 | && !PL_dirty) |
1753 | && !PL_dirty) |
1704 | destroy_perl (aTHX_ coro); |
1754 | destroy_perl (aTHX_ coro); |
1705 | |
1755 | |
1706 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1707 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1708 | if (coro == coro_first) coro_first = coro->next; |
|
|
1709 | |
|
|
1710 | cctx_destroy (coro->cctx); |
1756 | cctx_destroy (coro->cctx); |
1711 | SvREFCNT_dec (coro->startcv); |
1757 | SvREFCNT_dec (coro->startcv); |
1712 | SvREFCNT_dec (coro->args); |
1758 | SvREFCNT_dec (coro->args); |
1713 | SvREFCNT_dec (coro->swap_sv); |
1759 | SvREFCNT_dec (coro->swap_sv); |
1714 | SvREFCNT_dec (CORO_THROW); |
1760 | SvREFCNT_dec (CORO_THROW); |
|
|
1761 | |
|
|
1762 | coro_call_on_destroy (aTHX_ coro); |
|
|
1763 | |
|
|
1764 | /* more destruction mayhem in coro_state_free */ |
1715 | } |
1765 | } |
1716 | |
1766 | |
1717 | static int |
1767 | static int |
1718 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1768 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1719 | { |
1769 | { |
1720 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1770 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1721 | mg->mg_ptr = 0; |
1771 | mg->mg_ptr = 0; |
1722 | |
1772 | |
1723 | coro->hv = 0; |
|
|
1724 | |
|
|
1725 | if (--coro->refcnt < 0) |
|
|
1726 | { |
|
|
1727 | coro_state_destroy (aTHX_ coro); |
1773 | coro_state_destroy (aTHX_ coro); |
|
|
1774 | SvREFCNT_dec (coro->on_destroy); |
|
|
1775 | SvREFCNT_dec (coro->status); |
|
|
1776 | |
1728 | Safefree (coro); |
1777 | Safefree (coro); |
1729 | } |
|
|
1730 | |
1778 | |
1731 | return 0; |
1779 | return 0; |
1732 | } |
1780 | } |
1733 | |
1781 | |
1734 | static int |
1782 | static int ecb_cold |
1735 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1783 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1736 | { |
1784 | { |
1737 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1785 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1738 | |
1786 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1739 | ++coro->refcnt; |
1787 | mg->mg_ptr = 0; |
|
|
1788 | mg->mg_virtual = 0; |
1740 | |
1789 | |
1741 | return 0; |
1790 | return 0; |
1742 | } |
1791 | } |
1743 | |
1792 | |
1744 | static MGVTBL coro_state_vtbl = { |
1793 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1769 | TRANSFER (ta, 1); |
1818 | TRANSFER (ta, 1); |
1770 | } |
1819 | } |
1771 | |
1820 | |
1772 | /** Coro ********************************************************************/ |
1821 | /** Coro ********************************************************************/ |
1773 | |
1822 | |
1774 | INLINE void |
1823 | ecb_inline void |
1775 | coro_enq (pTHX_ struct coro *coro) |
1824 | coro_enq (pTHX_ struct coro *coro) |
1776 | { |
1825 | { |
1777 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1826 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1778 | |
1827 | |
1779 | SvREFCNT_inc_NN (coro->hv); |
1828 | SvREFCNT_inc_NN (coro->hv); |
… | |
… | |
1781 | coro->next_ready = 0; |
1830 | coro->next_ready = 0; |
1782 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
1831 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
1783 | ready [1] = coro; |
1832 | ready [1] = coro; |
1784 | } |
1833 | } |
1785 | |
1834 | |
1786 | INLINE struct coro * |
1835 | ecb_inline struct coro * |
1787 | coro_deq (pTHX) |
1836 | coro_deq (pTHX) |
1788 | { |
1837 | { |
1789 | int prio; |
1838 | int prio; |
1790 | |
1839 | |
1791 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1840 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1844 | { |
1893 | { |
1845 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1894 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1846 | } |
1895 | } |
1847 | |
1896 | |
1848 | /* expects to own a reference to next->hv */ |
1897 | /* expects to own a reference to next->hv */ |
1849 | INLINE void |
1898 | ecb_inline void |
1850 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1899 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1851 | { |
1900 | { |
1852 | SV *prev_sv = SvRV (coro_current); |
1901 | SV *prev_sv = SvRV (coro_current); |
1853 | |
1902 | |
1854 | ta->prev = SvSTATE_hv (prev_sv); |
1903 | ta->prev = SvSTATE_hv (prev_sv); |
… | |
… | |
1867 | { |
1916 | { |
1868 | for (;;) |
1917 | for (;;) |
1869 | { |
1918 | { |
1870 | struct coro *next = coro_deq (aTHX); |
1919 | struct coro *next = coro_deq (aTHX); |
1871 | |
1920 | |
1872 | if (expect_true (next)) |
1921 | if (ecb_expect_true (next)) |
1873 | { |
1922 | { |
1874 | /* cannot transfer to destroyed coros, skip and look for next */ |
1923 | /* cannot transfer to destroyed coros, skip and look for next */ |
1875 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
1924 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
1876 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
1925 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
1877 | else |
1926 | else |
1878 | { |
1927 | { |
1879 | next->flags &= ~CF_READY; |
1928 | next->flags &= ~CF_READY; |
1880 | --coro_nready; |
1929 | --coro_nready; |
… | |
… | |
1913 | } |
1962 | } |
1914 | } |
1963 | } |
1915 | } |
1964 | } |
1916 | } |
1965 | } |
1917 | |
1966 | |
1918 | INLINE void |
1967 | ecb_inline void |
1919 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1968 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1920 | { |
1969 | { |
1921 | api_ready (aTHX_ coro_current); |
1970 | api_ready (aTHX_ coro_current); |
1922 | prepare_schedule (aTHX_ ta); |
1971 | prepare_schedule (aTHX_ ta); |
1923 | } |
1972 | } |
1924 | |
1973 | |
1925 | INLINE void |
1974 | ecb_inline void |
1926 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1975 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1927 | { |
1976 | { |
1928 | SV *prev = SvRV (coro_current); |
1977 | SV *prev = SvRV (coro_current); |
1929 | |
1978 | |
1930 | if (coro_nready) |
1979 | if (coro_nready) |
… | |
… | |
1960 | { |
2009 | { |
1961 | struct coro_transfer_args ta; |
2010 | struct coro_transfer_args ta; |
1962 | |
2011 | |
1963 | prepare_cede (aTHX_ &ta); |
2012 | prepare_cede (aTHX_ &ta); |
1964 | |
2013 | |
1965 | if (expect_true (ta.prev != ta.next)) |
2014 | if (ecb_expect_true (ta.prev != ta.next)) |
1966 | { |
2015 | { |
1967 | TRANSFER (ta, 1); |
2016 | TRANSFER (ta, 1); |
1968 | return 1; |
2017 | return 1; |
1969 | } |
2018 | } |
1970 | else |
2019 | else |
… | |
… | |
2013 | coro->slot->runops = RUNOPS_DEFAULT; |
2062 | coro->slot->runops = RUNOPS_DEFAULT; |
2014 | } |
2063 | } |
2015 | } |
2064 | } |
2016 | |
2065 | |
2017 | static void |
2066 | static void |
|
|
2067 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2068 | { |
|
|
2069 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2070 | { |
|
|
2071 | dSP; |
|
|
2072 | |
|
|
2073 | if (gimme_v == G_SCALAR) |
|
|
2074 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2075 | else |
|
|
2076 | { |
|
|
2077 | int i; |
|
|
2078 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2079 | |
|
|
2080 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2081 | PUSHs (AvARRAY (av)[i]); |
|
|
2082 | } |
|
|
2083 | |
|
|
2084 | PUTBACK; |
|
|
2085 | } |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | static void |
|
|
2089 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2090 | { |
|
|
2091 | if (!coro->on_destroy) |
|
|
2092 | coro->on_destroy = newAV (); |
|
|
2093 | |
|
|
2094 | av_push (coro->on_destroy, cb); |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | static void |
|
|
2098 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2099 | { |
|
|
2100 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | static int |
|
|
2104 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2105 | { |
|
|
2106 | struct coro *coro = (struct coro *)frame->data; |
|
|
2107 | |
|
|
2108 | if (!coro->status) |
|
|
2109 | return 1; |
|
|
2110 | |
|
|
2111 | frame->destroy = 0; |
|
|
2112 | |
|
|
2113 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2114 | |
|
|
2115 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2116 | |
|
|
2117 | return 0; |
|
|
2118 | } |
|
|
2119 | |
|
|
2120 | static void |
|
|
2121 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2122 | { |
|
|
2123 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2124 | |
|
|
2125 | if (items > 1) |
|
|
2126 | croak ("join called with too many arguments"); |
|
|
2127 | |
|
|
2128 | if (coro->status) |
|
|
2129 | frame->prepare = prepare_nop; |
|
|
2130 | else |
|
|
2131 | { |
|
|
2132 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2133 | frame->prepare = prepare_schedule; |
|
|
2134 | } |
|
|
2135 | |
|
|
2136 | frame->check = slf_check_join; |
|
|
2137 | frame->destroy = slf_destroy_join; |
|
|
2138 | frame->data = (void *)coro; |
|
|
2139 | SvREFCNT_inc (coro->hv); |
|
|
2140 | } |
|
|
2141 | |
|
|
2142 | static void |
2018 | coro_call_on_destroy (pTHX_ struct coro *coro) |
2143 | coro_call_on_destroy (pTHX_ struct coro *coro) |
2019 | { |
2144 | { |
2020 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
2145 | AV *od = coro->on_destroy; |
2021 | |
2146 | |
2022 | if (on_destroyp) |
2147 | if (!od) |
2023 | { |
2148 | return; |
2024 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
2025 | AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp))); |
|
|
2026 | AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0; |
|
|
2027 | |
2149 | |
2028 | while (AvFILLp (on_destroy) >= 0) |
2150 | while (AvFILLp (od) >= 0) |
|
|
2151 | { |
|
|
2152 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2153 | |
|
|
2154 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2155 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2156 | api_ready (aTHX_ cb); |
|
|
2157 | else |
2029 | { |
2158 | { |
2030 | dSP; /* don't disturb outer sp */ |
2159 | dSP; /* don't disturb outer sp */ |
2031 | SV *cb = av_pop (on_destroy); |
|
|
2032 | |
|
|
2033 | PUSHMARK (SP); |
2160 | PUSHMARK (SP); |
2034 | |
2161 | |
2035 | if (statusp) |
2162 | if (coro->status) |
2036 | { |
2163 | { |
2037 | int i; |
2164 | PUTBACK; |
2038 | EXTEND (SP, AvFILLp (status) + 1); |
2165 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
2039 | |
2166 | SPAGAIN; |
2040 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
2041 | PUSHs (AvARRAY (status)[i]); |
|
|
2042 | } |
2167 | } |
2043 | |
2168 | |
2044 | PUTBACK; |
2169 | PUTBACK; |
2045 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
2170 | call_sv (cb, G_VOID | G_DISCARD); |
2046 | } |
2171 | } |
2047 | } |
2172 | } |
2048 | } |
2173 | } |
2049 | |
2174 | |
2050 | static void |
2175 | static void |
2051 | coro_set_status (HV *coro_hv, SV **arg, int items) |
2176 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
2052 | { |
2177 | { |
2053 | AV *av = newAV (); |
2178 | AV *av; |
|
|
2179 | |
|
|
2180 | if (coro->status) |
|
|
2181 | { |
|
|
2182 | av = coro->status; |
|
|
2183 | av_clear (av); |
|
|
2184 | } |
|
|
2185 | else |
|
|
2186 | av = coro->status = newAV (); |
2054 | |
2187 | |
2055 | /* items are actually not so common, so optimise for this case */ |
2188 | /* items are actually not so common, so optimise for this case */ |
2056 | if (items) |
2189 | if (items) |
2057 | { |
2190 | { |
2058 | int i; |
2191 | int i; |
… | |
… | |
2060 | av_extend (av, items - 1); |
2193 | av_extend (av, items - 1); |
2061 | |
2194 | |
2062 | for (i = 0; i < items; ++i) |
2195 | for (i = 0; i < items; ++i) |
2063 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
2196 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
2064 | } |
2197 | } |
2065 | |
|
|
2066 | hv_store (coro_hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
2067 | } |
2198 | } |
2068 | |
2199 | |
2069 | static void |
2200 | static void |
2070 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
2201 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
2071 | { |
2202 | { |
… | |
… | |
2083 | static void |
2214 | static void |
2084 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2215 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2085 | { |
2216 | { |
2086 | HV *coro_hv = (HV *)SvRV (coro_current); |
2217 | HV *coro_hv = (HV *)SvRV (coro_current); |
2087 | |
2218 | |
2088 | coro_set_status (coro_hv, arg, items); |
2219 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
2089 | slf_init_terminate_cancel_common (frame, coro_hv); |
2220 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
2090 | } |
2221 | } |
2091 | |
2222 | |
2092 | static void |
2223 | static void |
2093 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2224 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2094 | { |
2225 | { |
… | |
… | |
2099 | croak ("Coro::cancel called without coro object,"); |
2230 | croak ("Coro::cancel called without coro object,"); |
2100 | |
2231 | |
2101 | coro = SvSTATE (arg [0]); |
2232 | coro = SvSTATE (arg [0]); |
2102 | coro_hv = coro->hv; |
2233 | coro_hv = coro->hv; |
2103 | |
2234 | |
2104 | coro_set_status (coro_hv, arg + 1, items - 1); |
2235 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
2105 | |
2236 | |
2106 | if (expect_false (coro->flags & CF_NOCANCEL)) |
2237 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
2107 | { |
2238 | { |
2108 | /* coro currently busy cancelling something, so just notify it */ |
2239 | /* coro currently busy cancelling something, so just notify it */ |
2109 | coro->slf_frame.data = (void *)coro; |
2240 | coro->slf_frame.data = (void *)coro; |
2110 | |
2241 | |
2111 | frame->prepare = prepare_nop; |
2242 | frame->prepare = prepare_nop; |
2112 | frame->check = slf_check_nop; |
2243 | frame->check = slf_check_nop; |
2113 | } |
2244 | } |
2114 | else if (coro_hv == (HV *)SvRV (coro_current)) |
2245 | else if (coro_hv == (HV *)SvRV (coro_current)) |
2115 | { |
2246 | { |
2116 | /* cancelling the current coro is allowed, and equals terminate */ |
2247 | /* cancelling the current coro is allowed, and equals terminate */ |
2117 | slf_init_terminate_cancel_common (frame, coro_hv); |
2248 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
2118 | } |
2249 | } |
2119 | else |
2250 | else |
2120 | { |
2251 | { |
2121 | struct coro *self = SvSTATE_current; |
2252 | struct coro *self = SvSTATE_current; |
2122 | |
2253 | |
… | |
… | |
2126 | * this is ugly, and hopefully fully worth the extra speed. |
2257 | * this is ugly, and hopefully fully worth the extra speed. |
2127 | * besides, I can't get the slow-but-safe version working... |
2258 | * besides, I can't get the slow-but-safe version working... |
2128 | */ |
2259 | */ |
2129 | slf_frame.data = 0; |
2260 | slf_frame.data = 0; |
2130 | self->flags |= CF_NOCANCEL; |
2261 | self->flags |= CF_NOCANCEL; |
2131 | |
|
|
2132 | coro_state_destroy (aTHX_ coro); |
2262 | coro_state_destroy (aTHX_ coro); |
2133 | coro_call_on_destroy (aTHX_ coro); |
|
|
2134 | |
|
|
2135 | self->flags &= ~CF_NOCANCEL; |
2263 | self->flags &= ~CF_NOCANCEL; |
2136 | |
2264 | |
2137 | if (slf_frame.data) |
2265 | if (slf_frame.data) |
2138 | { |
2266 | { |
2139 | /* while we were busy we have been cancelled, so terminate */ |
2267 | /* while we were busy we have been cancelled, so terminate */ |
2140 | slf_init_terminate_cancel_common (frame, self->hv); |
2268 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
2141 | } |
2269 | } |
2142 | else |
2270 | else |
2143 | { |
2271 | { |
2144 | frame->prepare = prepare_nop; |
2272 | frame->prepare = prepare_nop; |
2145 | frame->check = slf_check_nop; |
2273 | frame->check = slf_check_nop; |
2146 | } |
2274 | } |
2147 | } |
2275 | } |
2148 | } |
2276 | } |
2149 | |
2277 | |
|
|
2278 | static int |
|
|
2279 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2280 | { |
|
|
2281 | frame->prepare = 0; |
|
|
2282 | coro_unwind_stacks (aTHX); |
|
|
2283 | |
|
|
2284 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2285 | |
|
|
2286 | return 1; |
|
|
2287 | } |
|
|
2288 | |
|
|
2289 | static int |
|
|
2290 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2291 | { |
|
|
2292 | if (coro->cctx) |
|
|
2293 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2294 | |
|
|
2295 | if (coro->flags & CF_NEW) |
|
|
2296 | { |
|
|
2297 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2298 | coro_state_destroy (aTHX_ coro); |
|
|
2299 | } |
|
|
2300 | else |
|
|
2301 | { |
|
|
2302 | if (!coro->slf_frame.prepare) |
|
|
2303 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2304 | |
|
|
2305 | slf_destroy (aTHX_ coro); |
|
|
2306 | |
|
|
2307 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2308 | coro->slf_frame.prepare = prepare_nop; |
|
|
2309 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2310 | |
|
|
2311 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2312 | } |
|
|
2313 | |
|
|
2314 | return 1; |
|
|
2315 | } |
|
|
2316 | |
2150 | /*****************************************************************************/ |
2317 | /*****************************************************************************/ |
2151 | /* async pool handler */ |
2318 | /* async pool handler */ |
2152 | |
2319 | |
2153 | static int |
2320 | static int |
2154 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
2321 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
… | |
… | |
2183 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2350 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2184 | { |
2351 | { |
2185 | HV *hv = (HV *)SvRV (coro_current); |
2352 | HV *hv = (HV *)SvRV (coro_current); |
2186 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2353 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2187 | |
2354 | |
2188 | if (expect_true (coro->saved_deffh)) |
2355 | if (ecb_expect_true (coro->saved_deffh)) |
2189 | { |
2356 | { |
2190 | /* subsequent iteration */ |
2357 | /* subsequent iteration */ |
2191 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2358 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2192 | coro->saved_deffh = 0; |
2359 | coro->saved_deffh = 0; |
2193 | |
2360 | |
2194 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2361 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2195 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2362 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2196 | { |
2363 | { |
2197 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
2364 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
2198 | coro->invoke_av = newAV (); |
2365 | return; |
2199 | |
|
|
2200 | frame->prepare = prepare_nop; |
|
|
2201 | } |
2366 | } |
2202 | else |
2367 | else |
2203 | { |
2368 | { |
2204 | av_clear (GvAV (PL_defgv)); |
2369 | av_clear (GvAV (PL_defgv)); |
2205 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
2370 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
… | |
… | |
2255 | |
2420 | |
2256 | static int |
2421 | static int |
2257 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
2422 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
2258 | { |
2423 | { |
2259 | SV *data = (SV *)frame->data; |
2424 | SV *data = (SV *)frame->data; |
2260 | |
2425 | |
2261 | if (CORO_THROW) |
2426 | if (CORO_THROW) |
2262 | return 0; |
2427 | return 0; |
2263 | |
2428 | |
2264 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
2429 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
2265 | return 1; |
2430 | return 1; |
… | |
… | |
2301 | cb = sv_2mortal (coro->rouse_cb); |
2466 | cb = sv_2mortal (coro->rouse_cb); |
2302 | coro->rouse_cb = 0; |
2467 | coro->rouse_cb = 0; |
2303 | } |
2468 | } |
2304 | |
2469 | |
2305 | if (!SvROK (cb) |
2470 | if (!SvROK (cb) |
2306 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
2471 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
2307 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
2472 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
2308 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
2473 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
2309 | |
2474 | |
2310 | { |
2475 | { |
2311 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
2476 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
… | |
… | |
2428 | static void |
2593 | static void |
2429 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2594 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2430 | { |
2595 | { |
2431 | frame->prepare = prepare_cede_notself; |
2596 | frame->prepare = prepare_cede_notself; |
2432 | frame->check = slf_check_nop; |
2597 | frame->check = slf_check_nop; |
|
|
2598 | } |
|
|
2599 | |
|
|
2600 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2601 | static void |
|
|
2602 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2603 | { |
|
|
2604 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2605 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2606 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2607 | |
|
|
2608 | /* |
|
|
2609 | * The on_destroy above most likely is from an SLF call. |
|
|
2610 | * Since by definition the SLF call will not finish when we destroy |
|
|
2611 | * the coro, we will have to force-finish it here, otherwise |
|
|
2612 | * cleanup functions cannot call SLF functions. |
|
|
2613 | */ |
|
|
2614 | coro->slf_frame.prepare = 0; |
2433 | } |
2615 | } |
2434 | |
2616 | |
2435 | /* |
2617 | /* |
2436 | * these not obviously related functions are all rolled into one |
2618 | * these not obviously related functions are all rolled into one |
2437 | * function to increase chances that they all will call transfer with the same |
2619 | * function to increase chances that they all will call transfer with the same |
… | |
… | |
2444 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
2626 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
2445 | |
2627 | |
2446 | /* set up the slf frame, unless it has already been set-up */ |
2628 | /* set up the slf frame, unless it has already been set-up */ |
2447 | /* the latter happens when a new coro has been started */ |
2629 | /* the latter happens when a new coro has been started */ |
2448 | /* or when a new cctx was attached to an existing coroutine */ |
2630 | /* or when a new cctx was attached to an existing coroutine */ |
2449 | if (expect_true (!slf_frame.prepare)) |
2631 | if (ecb_expect_true (!slf_frame.prepare)) |
2450 | { |
2632 | { |
2451 | /* first iteration */ |
2633 | /* first iteration */ |
2452 | dSP; |
2634 | dSP; |
2453 | SV **arg = PL_stack_base + TOPMARK + 1; |
2635 | SV **arg = PL_stack_base + TOPMARK + 1; |
2454 | int items = SP - arg; /* args without function object */ |
2636 | int items = SP - arg; /* args without function object */ |
… | |
… | |
2495 | while (slf_frame.check (aTHX_ &slf_frame)); |
2677 | while (slf_frame.check (aTHX_ &slf_frame)); |
2496 | |
2678 | |
2497 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
2679 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
2498 | |
2680 | |
2499 | /* exception handling */ |
2681 | /* exception handling */ |
2500 | if (expect_false (CORO_THROW)) |
2682 | if (ecb_expect_false (CORO_THROW)) |
2501 | { |
2683 | { |
2502 | SV *exception = sv_2mortal (CORO_THROW); |
2684 | SV *exception = sv_2mortal (CORO_THROW); |
2503 | |
2685 | |
2504 | CORO_THROW = 0; |
2686 | CORO_THROW = 0; |
2505 | sv_setsv (ERRSV, exception); |
2687 | sv_setsv (ERRSV, exception); |
2506 | croak (0); |
2688 | croak (0); |
2507 | } |
2689 | } |
2508 | |
2690 | |
2509 | /* return value handling - mostly like entersub */ |
2691 | /* return value handling - mostly like entersub */ |
2510 | /* make sure we put something on the stack in scalar context */ |
2692 | /* make sure we put something on the stack in scalar context */ |
2511 | if (GIMME_V == G_SCALAR) |
2693 | if (GIMME_V == G_SCALAR |
|
|
2694 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
2512 | { |
2695 | { |
2513 | dSP; |
2696 | dSP; |
2514 | SV **bot = PL_stack_base + checkmark; |
2697 | SV **bot = PL_stack_base + checkmark; |
2515 | |
2698 | |
2516 | if (sp == bot) /* too few, push undef */ |
2699 | if (sp == bot) /* too few, push undef */ |
2517 | bot [1] = &PL_sv_undef; |
2700 | bot [1] = &PL_sv_undef; |
2518 | else if (sp != bot + 1) /* too many, take last one */ |
2701 | else /* too many, take last one */ |
2519 | bot [1] = *sp; |
2702 | bot [1] = *sp; |
2520 | |
2703 | |
2521 | SP = bot + 1; |
2704 | SP = bot + 1; |
2522 | |
2705 | |
2523 | PUTBACK; |
2706 | PUTBACK; |
… | |
… | |
2630 | { |
2813 | { |
2631 | PerlIOBuf base; |
2814 | PerlIOBuf base; |
2632 | NV next, every; |
2815 | NV next, every; |
2633 | } PerlIOCede; |
2816 | } PerlIOCede; |
2634 | |
2817 | |
2635 | static IV |
2818 | static IV ecb_cold |
2636 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2819 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2637 | { |
2820 | { |
2638 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2821 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2639 | |
2822 | |
2640 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2823 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2641 | self->next = nvtime () + self->every; |
2824 | self->next = nvtime () + self->every; |
2642 | |
2825 | |
2643 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2826 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2644 | } |
2827 | } |
2645 | |
2828 | |
2646 | static SV * |
2829 | static SV * ecb_cold |
2647 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2830 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2648 | { |
2831 | { |
2649 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2832 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2650 | |
2833 | |
2651 | return newSVnv (self->every); |
2834 | return newSVnv (self->every); |
… | |
… | |
2763 | SvREFCNT_dec (cb); |
2946 | SvREFCNT_dec (cb); |
2764 | } |
2947 | } |
2765 | } |
2948 | } |
2766 | |
2949 | |
2767 | static void |
2950 | static void |
2768 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2951 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
2769 | { |
2952 | { |
2770 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2953 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2771 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2954 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
2772 | } |
2955 | } |
2773 | |
2956 | |
2774 | static int |
2957 | static int |
2775 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2958 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2776 | { |
2959 | { |
2777 | AV *av = (AV *)frame->data; |
2960 | AV *av = (AV *)frame->data; |
2778 | SV *count_sv = AvARRAY (av)[0]; |
2961 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2962 | SV *coro_hv = SvRV (coro_current); |
2779 | |
2963 | |
2780 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
2964 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
2781 | if (CORO_THROW) |
2965 | if (CORO_THROW) |
2782 | return 0; |
2966 | return 0; |
2783 | else if (SvIVX (count_sv) > 0) |
2967 | else if (SvIVX (count_sv) > 0) |
2784 | { |
2968 | { |
2785 | SvSTATE_current->on_destroy = 0; |
2969 | frame->destroy = 0; |
2786 | |
2970 | |
2787 | if (acquire) |
2971 | if (acquire) |
2788 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2972 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2789 | else |
2973 | else |
2790 | coro_semaphore_adjust (aTHX_ av, 0); |
2974 | coro_semaphore_adjust (aTHX_ av, 0); |
… | |
… | |
2795 | { |
2979 | { |
2796 | int i; |
2980 | int i; |
2797 | /* if we were woken up but can't down, we look through the whole */ |
2981 | /* if we were woken up but can't down, we look through the whole */ |
2798 | /* waiters list and only add us if we aren't in there already */ |
2982 | /* waiters list and only add us if we aren't in there already */ |
2799 | /* this avoids some degenerate memory usage cases */ |
2983 | /* this avoids some degenerate memory usage cases */ |
2800 | |
2984 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
2801 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2802 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
2985 | if (AvARRAY (av)[i] == coro_hv) |
2803 | return 1; |
2986 | return 1; |
2804 | |
2987 | |
2805 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2988 | av_push (av, SvREFCNT_inc (coro_hv)); |
2806 | return 1; |
2989 | return 1; |
2807 | } |
2990 | } |
2808 | } |
2991 | } |
2809 | |
2992 | |
2810 | static int |
2993 | static int |
… | |
… | |
2833 | { |
3016 | { |
2834 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
3017 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2835 | |
3018 | |
2836 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
3019 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2837 | frame->prepare = prepare_schedule; |
3020 | frame->prepare = prepare_schedule; |
2838 | |
|
|
2839 | /* to avoid race conditions when a woken-up coro gets terminated */ |
3021 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2840 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
3022 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2841 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
3023 | frame->destroy = coro_semaphore_destroy; |
2842 | } |
3024 | } |
2843 | } |
3025 | } |
2844 | |
3026 | |
2845 | static void |
3027 | static void |
2846 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
3028 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
… | |
… | |
3064 | dSP; |
3246 | dSP; |
3065 | |
3247 | |
3066 | static SV *prio_cv; |
3248 | static SV *prio_cv; |
3067 | static SV *prio_sv; |
3249 | static SV *prio_sv; |
3068 | |
3250 | |
3069 | if (expect_false (!prio_cv)) |
3251 | if (ecb_expect_false (!prio_cv)) |
3070 | { |
3252 | { |
3071 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
3253 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
3072 | prio_sv = newSViv (0); |
3254 | prio_sv = newSViv (0); |
3073 | } |
3255 | } |
3074 | |
3256 | |
… | |
… | |
3180 | } |
3362 | } |
3181 | |
3363 | |
3182 | return coro_sv; |
3364 | return coro_sv; |
3183 | } |
3365 | } |
3184 | |
3366 | |
|
|
3367 | #ifndef __cplusplus |
|
|
3368 | ecb_cold XS(boot_Coro__State); |
|
|
3369 | #endif |
|
|
3370 | |
|
|
3371 | #if CORO_JIT |
|
|
3372 | |
|
|
3373 | static void ecb_noinline ecb_cold |
|
|
3374 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3375 | { |
|
|
3376 | dSP; |
|
|
3377 | AV *av = newAV (); |
|
|
3378 | |
|
|
3379 | av_store (av, 3, newSVuv (d)); |
|
|
3380 | av_store (av, 2, newSVuv (c)); |
|
|
3381 | av_store (av, 1, newSVuv (b)); |
|
|
3382 | av_store (av, 0, newSVuv (a)); |
|
|
3383 | |
|
|
3384 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3385 | |
|
|
3386 | PUTBACK; |
|
|
3387 | } |
|
|
3388 | |
|
|
3389 | static void ecb_noinline ecb_cold |
|
|
3390 | jit_init (pTHX) |
|
|
3391 | { |
|
|
3392 | dSP; |
|
|
3393 | SV *load, *save; |
|
|
3394 | char *map_base; |
|
|
3395 | char *load_ptr, *save_ptr; |
|
|
3396 | STRLEN load_len, save_len, map_len; |
|
|
3397 | int count; |
|
|
3398 | |
|
|
3399 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3400 | |
|
|
3401 | PUSHMARK (SP); |
|
|
3402 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3403 | #include "state.h" |
|
|
3404 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3405 | SPAGAIN; |
|
|
3406 | |
|
|
3407 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3408 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3409 | |
|
|
3410 | map_len = load_len + save_len + 16; |
|
|
3411 | |
|
|
3412 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3413 | |
|
|
3414 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3415 | |
|
|
3416 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3417 | memcpy (map_base, load_ptr, load_len); |
|
|
3418 | |
|
|
3419 | map_base += (load_len + 15) & ~15; |
|
|
3420 | |
|
|
3421 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3422 | memcpy (map_base, save_ptr, save_len); |
|
|
3423 | |
|
|
3424 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3425 | /* hackers might have it a bit more difficult */ |
|
|
3426 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3427 | |
|
|
3428 | PUTBACK; |
|
|
3429 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3430 | } |
|
|
3431 | |
|
|
3432 | #endif |
|
|
3433 | |
3185 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3434 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3186 | |
3435 | |
3187 | PROTOTYPES: DISABLE |
3436 | PROTOTYPES: DISABLE |
3188 | |
3437 | |
3189 | BOOT: |
3438 | BOOT: |
… | |
… | |
3192 | # if CORO_PTHREAD |
3441 | # if CORO_PTHREAD |
3193 | coro_thx = PERL_GET_CONTEXT; |
3442 | coro_thx = PERL_GET_CONTEXT; |
3194 | # endif |
3443 | # endif |
3195 | #endif |
3444 | #endif |
3196 | BOOT_PAGESIZE; |
3445 | BOOT_PAGESIZE; |
|
|
3446 | |
|
|
3447 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3448 | /* just create them one at init time is not clear to me, except for */ |
|
|
3449 | /* programs trying to delete them, but... */ |
|
|
3450 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3451 | DEFSV; |
|
|
3452 | ERRSV; |
3197 | |
3453 | |
3198 | cctx_current = cctx_new_empty (); |
3454 | cctx_current = cctx_new_empty (); |
3199 | |
3455 | |
3200 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3456 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3201 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3457 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
… | |
… | |
3244 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3500 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3245 | |
3501 | |
3246 | time_init (aTHX); |
3502 | time_init (aTHX); |
3247 | |
3503 | |
3248 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
3504 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3505 | #if CORO_JIT |
|
|
3506 | PUTBACK; |
|
|
3507 | jit_init (aTHX); |
|
|
3508 | SPAGAIN; |
|
|
3509 | #endif |
3249 | } |
3510 | } |
3250 | |
3511 | |
3251 | SV * |
3512 | SV * |
3252 | new (SV *klass, ...) |
3513 | new (SV *klass, ...) |
3253 | ALIAS: |
3514 | ALIAS: |
… | |
… | |
3395 | PROTOTYPE: $ |
3656 | PROTOTYPE: $ |
3396 | ALIAS: |
3657 | ALIAS: |
3397 | is_ready = CF_READY |
3658 | is_ready = CF_READY |
3398 | is_running = CF_RUNNING |
3659 | is_running = CF_RUNNING |
3399 | is_new = CF_NEW |
3660 | is_new = CF_NEW |
3400 | is_destroyed = CF_DESTROYED |
3661 | is_destroyed = CF_ZOMBIE |
|
|
3662 | is_zombie = CF_ZOMBIE |
3401 | is_suspended = CF_SUSPENDED |
3663 | is_suspended = CF_SUSPENDED |
3402 | CODE: |
3664 | CODE: |
3403 | RETVAL = boolSV (coro->flags & ix); |
3665 | RETVAL = boolSV (coro->flags & ix); |
3404 | OUTPUT: |
3666 | OUTPUT: |
3405 | RETVAL |
3667 | RETVAL |
3406 | |
3668 | |
3407 | void |
3669 | void |
3408 | throw (Coro::State self, SV *exception = &PL_sv_undef) |
3670 | throw (SV *self, SV *exception = &PL_sv_undef) |
3409 | PROTOTYPE: $;$ |
3671 | PROTOTYPE: $;$ |
3410 | CODE: |
3672 | CODE: |
3411 | { |
3673 | { |
|
|
3674 | struct coro *coro = SvSTATE (self); |
3412 | struct coro *current = SvSTATE_current; |
3675 | struct coro *current = SvSTATE_current; |
3413 | SV **exceptionp = self == current ? &CORO_THROW : &self->except; |
3676 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
3414 | SvREFCNT_dec (*exceptionp); |
3677 | SvREFCNT_dec (*exceptionp); |
3415 | SvGETMAGIC (exception); |
3678 | SvGETMAGIC (exception); |
3416 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
3679 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3680 | |
|
|
3681 | api_ready (aTHX_ self); |
3417 | } |
3682 | } |
3418 | |
3683 | |
3419 | void |
3684 | void |
3420 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3685 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3421 | PROTOTYPE: $;$ |
3686 | PROTOTYPE: $;$ |
… | |
… | |
3500 | times (Coro::State self) |
3765 | times (Coro::State self) |
3501 | PPCODE: |
3766 | PPCODE: |
3502 | { |
3767 | { |
3503 | struct coro *current = SvSTATE (coro_current); |
3768 | struct coro *current = SvSTATE (coro_current); |
3504 | |
3769 | |
3505 | if (expect_false (current == self)) |
3770 | if (ecb_expect_false (current == self)) |
3506 | { |
3771 | { |
3507 | coro_times_update (); |
3772 | coro_times_update (); |
3508 | coro_times_add (SvSTATE (coro_current)); |
3773 | coro_times_add (SvSTATE (coro_current)); |
3509 | } |
3774 | } |
3510 | |
3775 | |
3511 | EXTEND (SP, 2); |
3776 | EXTEND (SP, 2); |
3512 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
3777 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
3513 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
3778 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
3514 | |
3779 | |
3515 | if (expect_false (current == self)) |
3780 | if (ecb_expect_false (current == self)) |
3516 | coro_times_sub (SvSTATE (coro_current)); |
3781 | coro_times_sub (SvSTATE (coro_current)); |
3517 | } |
3782 | } |
3518 | |
3783 | |
3519 | void |
3784 | void |
3520 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
3785 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
… | |
… | |
3541 | BOOT: |
3806 | BOOT: |
3542 | { |
3807 | { |
3543 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3808 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3544 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3809 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3545 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
3810 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
3546 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
|
|
3547 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
3811 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
3548 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3812 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3549 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
3813 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
3550 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
3814 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
3551 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
3815 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
3552 | |
3816 | |
3553 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
3817 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
3554 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
3818 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
3555 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
3819 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
3556 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
3820 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
3557 | |
3821 | |
3558 | coro_stash = gv_stashpv ("Coro", TRUE); |
3822 | coro_stash = gv_stashpv ("Coro", TRUE); |
3559 | |
3823 | |
3560 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
3824 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
3561 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
3825 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
3562 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
3826 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
… | |
… | |
3594 | void |
3858 | void |
3595 | _destroy (Coro::State coro) |
3859 | _destroy (Coro::State coro) |
3596 | CODE: |
3860 | CODE: |
3597 | /* used by the manager thread */ |
3861 | /* used by the manager thread */ |
3598 | coro_state_destroy (aTHX_ coro); |
3862 | coro_state_destroy (aTHX_ coro); |
|
|
3863 | |
|
|
3864 | void |
|
|
3865 | on_destroy (Coro::State coro, SV *cb) |
|
|
3866 | CODE: |
3599 | coro_call_on_destroy (aTHX_ coro); |
3867 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3868 | |
|
|
3869 | void |
|
|
3870 | join (...) |
|
|
3871 | CODE: |
|
|
3872 | CORO_EXECUTE_SLF_XS (slf_init_join); |
3600 | |
3873 | |
3601 | void |
3874 | void |
3602 | terminate (...) |
3875 | terminate (...) |
3603 | CODE: |
3876 | CODE: |
3604 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
3877 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
3605 | |
3878 | |
3606 | void |
3879 | void |
3607 | cancel (...) |
3880 | cancel (...) |
3608 | CODE: |
3881 | CODE: |
3609 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
3882 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3883 | |
|
|
3884 | int |
|
|
3885 | safe_cancel (Coro::State self, ...) |
|
|
3886 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
3610 | |
3887 | |
3611 | void |
3888 | void |
3612 | schedule (...) |
3889 | schedule (...) |
3613 | CODE: |
3890 | CODE: |
3614 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
3891 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
… | |
… | |
3890 | } |
4167 | } |
3891 | |
4168 | |
3892 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
4169 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
3893 | |
4170 | |
3894 | void |
4171 | void |
3895 | _may_delete (SV *sem, int count, int extra_refs) |
4172 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
3896 | PPCODE: |
4173 | PPCODE: |
3897 | { |
4174 | { |
3898 | AV *av = (AV *)SvRV (sem); |
4175 | AV *av = (AV *)SvRV (sem); |
3899 | |
4176 | |
3900 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
4177 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |