1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
2 | |
2 | |
3 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
|
|
4 | #define PERL_EXT |
4 | |
5 | |
5 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #include "perl.h" |
7 | #include "XSUB.h" |
8 | #include "XSUB.h" |
|
|
9 | #include "perliol.h" |
8 | |
10 | |
9 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
10 | |
12 | |
11 | #include <stdio.h> |
13 | #include <stdio.h> |
12 | #include <errno.h> |
14 | #include <errno.h> |
13 | #include <assert.h> |
15 | #include <assert.h> |
|
|
16 | |
|
|
17 | #ifdef WIN32 |
|
|
18 | # undef setjmp |
|
|
19 | # undef longjmp |
|
|
20 | # undef _exit |
|
|
21 | # define setjmp _setjmp /* deep magic */ |
|
|
22 | #else |
|
|
23 | # include <inttypes.h> /* most portable stdint.h */ |
|
|
24 | #endif |
14 | |
25 | |
15 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
16 | # include <unistd.h> |
27 | # include <unistd.h> |
17 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
… | |
… | |
35 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
36 | #endif |
47 | #endif |
37 | |
48 | |
38 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
39 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
|
|
41 | #else |
|
|
42 | # define REGISTER_STACK(cctx,start,end) |
|
|
43 | #endif |
51 | #endif |
44 | |
52 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
47 | |
55 | |
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
49 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
50 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
51 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
… | |
… | |
70 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
71 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
72 | # endif |
80 | # endif |
73 | #endif |
81 | #endif |
74 | |
82 | |
|
|
83 | /* 5.11 */ |
|
|
84 | #ifndef CxHASARGS |
|
|
85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
|
|
86 | #endif |
|
|
87 | |
|
|
88 | /* 5.10.0 */ |
|
|
89 | #ifndef SvREFCNT_inc_NN |
|
|
90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
|
|
91 | #endif |
|
|
92 | |
|
|
93 | /* 5.8.8 */ |
|
|
94 | #ifndef GV_NOTQUAL |
|
|
95 | # define GV_NOTQUAL 0 |
|
|
96 | #endif |
|
|
97 | #ifndef newSV |
|
|
98 | # define newSV(l) NEWSV(0,l) |
|
|
99 | #endif |
|
|
100 | #ifndef CvISXSUB_on |
|
|
101 | # define CvISXSUB_on(cv) (void)cv |
|
|
102 | #endif |
|
|
103 | |
75 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
76 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | #endif |
107 | #endif |
79 | |
108 | |
80 | /* 5.8.8 */ |
|
|
81 | #ifndef GV_NOTQUAL |
|
|
82 | # define GV_NOTQUAL 0 |
|
|
83 | #endif |
|
|
84 | #ifndef newSV |
|
|
85 | # define newSV(l) NEWSV(0,l) |
|
|
86 | #endif |
|
|
87 | |
|
|
88 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
109 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
89 | # undef CORO_STACKGUARD |
110 | # undef CORO_STACKGUARD |
90 | #endif |
111 | #endif |
91 | |
112 | |
92 | #ifndef CORO_STACKGUARD |
113 | #ifndef CORO_STACKGUARD |
… | |
… | |
98 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
99 | #endif |
120 | #endif |
100 | |
121 | |
101 | /* The next macros try to return the current stack pointer, in an as |
122 | /* The next macros try to return the current stack pointer, in an as |
102 | * portable way as possible. */ |
123 | * portable way as possible. */ |
|
|
124 | #if __GNUC__ >= 4 |
|
|
125 | # define dSTACKLEVEL int stacklevel_dummy |
|
|
126 | # define STACKLEVEL __builtin_frame_address (0) |
|
|
127 | #else |
103 | #define dSTACKLEVEL volatile char stacklevel |
128 | # define dSTACKLEVEL volatile void *stacklevel |
104 | #define STACKLEVEL ((void *)&stacklevel) |
129 | # define STACKLEVEL ((void *)&stacklevel) |
|
|
130 | #endif |
105 | |
131 | |
106 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
132 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
107 | |
133 | |
108 | #if __GNUC__ >= 3 |
134 | #if __GNUC__ >= 3 |
109 | # define attribute(x) __attribute__(x) |
135 | # define attribute(x) __attribute__(x) |
110 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
136 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
137 | # define INLINE static inline |
111 | #else |
138 | #else |
112 | # define attribute(x) |
139 | # define attribute(x) |
113 | # define BARRIER |
140 | # define expect(expr,value) (expr) |
|
|
141 | # define INLINE static |
114 | #endif |
142 | #endif |
|
|
143 | |
|
|
144 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
145 | #define expect_true(expr) expect ((expr) != 0, 1) |
115 | |
146 | |
116 | #define NOINLINE attribute ((noinline)) |
147 | #define NOINLINE attribute ((noinline)) |
117 | |
148 | |
118 | #include "CoroAPI.h" |
149 | #include "CoroAPI.h" |
|
|
150 | #define GCoroAPI (&coroapi) /* very sneaky */ |
119 | |
151 | |
120 | #ifdef USE_ITHREADS |
152 | #ifdef USE_ITHREADS |
121 | static perl_mutex coro_mutex; |
153 | # if CORO_PTHREAD |
122 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
154 | static void *coro_thx; |
123 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
|
|
124 | #else |
|
|
125 | # define LOCK (void)0 |
|
|
126 | # define UNLOCK (void)0 |
|
|
127 | #endif |
155 | # endif |
|
|
156 | #endif |
128 | |
157 | |
129 | /* helper storage struct for Coro::AIO */ |
158 | static double (*nvtime)(); /* so why doesn't it take void? */ |
130 | struct io_state |
|
|
131 | { |
|
|
132 | int errorno; |
|
|
133 | I32 laststype; |
|
|
134 | int laststatval; |
|
|
135 | Stat_t statcache; |
|
|
136 | }; |
|
|
137 | |
159 | |
|
|
160 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
161 | #define CVf_SLF 0x4000 |
|
|
162 | static OP *pp_slf (pTHX); |
|
|
163 | |
|
|
164 | static U32 cctx_gen; |
138 | static size_t coro_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
139 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
140 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
141 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
142 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
|
|
170 | static CV *coro_run_cv; |
143 | static SV *coro_mortal; /* will be freed after next transfer */ |
171 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
144 | |
172 | |
145 | static GV *irsgv; /* $/ */ |
173 | static GV *irsgv; /* $/ */ |
146 | static GV *stdoutgv; /* *STDOUT */ |
174 | static GV *stdoutgv; /* *STDOUT */ |
|
|
175 | static SV *rv_diehook; |
|
|
176 | static SV *rv_warnhook; |
|
|
177 | static HV *hv_sig; /* %SIG */ |
147 | |
178 | |
148 | /* async_pool helper stuff */ |
179 | /* async_pool helper stuff */ |
149 | static SV *sv_pool_rss; |
180 | static SV *sv_pool_rss; |
150 | static SV *sv_pool_size; |
181 | static SV *sv_pool_size; |
151 | static AV *av_async_pool; |
182 | static AV *av_async_pool; |
|
|
183 | |
|
|
184 | /* Coro::AnyEvent */ |
|
|
185 | static SV *sv_activity; |
152 | |
186 | |
153 | static struct coro_cctx *cctx_first; |
187 | static struct coro_cctx *cctx_first; |
154 | static int cctx_count, cctx_idle; |
188 | static int cctx_count, cctx_idle; |
155 | |
189 | |
156 | enum { |
190 | enum { |
… | |
… | |
161 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
195 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
162 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
196 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
163 | }; |
197 | }; |
164 | |
198 | |
165 | /* this is a structure representing a c-level coroutine */ |
199 | /* this is a structure representing a c-level coroutine */ |
166 | typedef struct coro_cctx { |
200 | typedef struct coro_cctx |
|
|
201 | { |
167 | struct coro_cctx *next; |
202 | struct coro_cctx *next; |
168 | |
203 | |
169 | /* the stack */ |
204 | /* the stack */ |
170 | void *sptr; |
205 | void *sptr; |
171 | size_t ssize; |
206 | size_t ssize; |
… | |
… | |
174 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
209 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
175 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
210 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
176 | JMPENV *top_env; |
211 | JMPENV *top_env; |
177 | coro_context cctx; |
212 | coro_context cctx; |
178 | |
213 | |
|
|
214 | U32 gen; |
179 | #if CORO_USE_VALGRIND |
215 | #if CORO_USE_VALGRIND |
180 | int valgrind_id; |
216 | int valgrind_id; |
181 | #endif |
217 | #endif |
182 | unsigned char flags; |
218 | unsigned char flags; |
183 | } coro_cctx; |
219 | } coro_cctx; |
… | |
… | |
187 | CF_READY = 0x0002, /* coroutine is ready */ |
223 | CF_READY = 0x0002, /* coroutine is ready */ |
188 | CF_NEW = 0x0004, /* has never been switched to */ |
224 | CF_NEW = 0x0004, /* has never been switched to */ |
189 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
225 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
190 | }; |
226 | }; |
191 | |
227 | |
192 | /* this is a structure representing a perl-level coroutine */ |
228 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
193 | struct coro { |
229 | typedef struct |
194 | /* the c coroutine allocated to this perl coroutine, if any */ |
230 | { |
195 | coro_cctx *cctx; |
231 | SV *defsv; |
196 | |
232 | AV *defav; |
197 | /* data associated with this coroutine (initial args) */ |
233 | SV *errsv; |
198 | AV *args; |
234 | SV *irsgv; |
199 | int refcnt; |
|
|
200 | int flags; /* CF_ flags */ |
|
|
201 | |
|
|
202 | /* optionally saved, might be zero */ |
|
|
203 | AV *defav; /* @_ */ |
|
|
204 | SV *defsv; /* $_ */ |
|
|
205 | SV *errsv; /* $@ */ |
|
|
206 | SV *deffh; /* default filehandle */ |
|
|
207 | SV *irssv; /* $/ */ |
|
|
208 | SV *irssv_sv; /* real $/ cache */ |
|
|
209 | |
|
|
210 | #define VAR(name,type) type name; |
235 | #define VAR(name,type) type name; |
211 | # include "state.h" |
236 | # include "state.h" |
212 | #undef VAR |
237 | #undef VAR |
|
|
238 | } perl_slots; |
|
|
239 | |
|
|
240 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
|
|
241 | |
|
|
242 | /* this is a structure representing a perl-level coroutine */ |
|
|
243 | struct coro { |
|
|
244 | /* the C coroutine allocated to this perl coroutine, if any */ |
|
|
245 | coro_cctx *cctx; |
|
|
246 | |
|
|
247 | /* state data */ |
|
|
248 | struct CoroSLF slf_frame; /* saved slf frame */ |
|
|
249 | AV *mainstack; |
|
|
250 | perl_slots *slot; /* basically the saved sp */ |
|
|
251 | |
|
|
252 | CV *startcv; /* the CV to execute */ |
|
|
253 | AV *args; /* data associated with this coroutine (initial args) */ |
|
|
254 | int refcnt; /* coroutines are refcounted, yes */ |
|
|
255 | int flags; /* CF_ flags */ |
|
|
256 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
257 | void (*on_destroy)(pTHX_ struct coro *coro); |
213 | |
258 | |
214 | /* statistics */ |
259 | /* statistics */ |
215 | int usecount; /* number of transfers to this coro */ |
260 | int usecount; /* number of transfers to this coro */ |
216 | |
261 | |
217 | /* coro process data */ |
262 | /* coro process data */ |
218 | int prio; |
263 | int prio; |
219 | //SV *throw; |
264 | SV *except; /* exception to be thrown */ |
|
|
265 | SV *rouse_cb; |
220 | |
266 | |
221 | /* async_pool */ |
267 | /* async_pool */ |
222 | SV *saved_deffh; |
268 | SV *saved_deffh; |
223 | |
269 | |
224 | /* linked list */ |
270 | /* linked list */ |
225 | struct coro *next, *prev; |
271 | struct coro *next, *prev; |
226 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
227 | }; |
272 | }; |
228 | |
273 | |
229 | typedef struct coro *Coro__State; |
274 | typedef struct coro *Coro__State; |
230 | typedef struct coro *Coro__State_or_hashref; |
275 | typedef struct coro *Coro__State_or_hashref; |
|
|
276 | |
|
|
277 | /* the following variables are effectively part of the perl context */ |
|
|
278 | /* and get copied between struct coro and these variables */ |
|
|
279 | /* the mainr easonw e don't support windows process emulation */ |
|
|
280 | static struct CoroSLF slf_frame; /* the current slf frame */ |
231 | |
281 | |
232 | /** Coro ********************************************************************/ |
282 | /** Coro ********************************************************************/ |
233 | |
283 | |
234 | #define PRIO_MAX 3 |
284 | #define PRIO_MAX 3 |
235 | #define PRIO_HIGH 1 |
285 | #define PRIO_HIGH 1 |
… | |
… | |
238 | #define PRIO_IDLE -3 |
288 | #define PRIO_IDLE -3 |
239 | #define PRIO_MIN -4 |
289 | #define PRIO_MIN -4 |
240 | |
290 | |
241 | /* for Coro.pm */ |
291 | /* for Coro.pm */ |
242 | static SV *coro_current; |
292 | static SV *coro_current; |
|
|
293 | static SV *coro_readyhook; |
243 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
294 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
244 | static int coro_nready; |
|
|
245 | static struct coro *coro_first; |
295 | static struct coro *coro_first; |
|
|
296 | #define coro_nready coroapi.nready |
246 | |
297 | |
247 | /** lowlevel stuff **********************************************************/ |
298 | /** lowlevel stuff **********************************************************/ |
|
|
299 | |
|
|
300 | static SV * |
|
|
301 | coro_get_sv (pTHX_ const char *name, int create) |
|
|
302 | { |
|
|
303 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
304 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
305 | get_sv (name, create); |
|
|
306 | #endif |
|
|
307 | return get_sv (name, create); |
|
|
308 | } |
|
|
309 | |
|
|
310 | static AV * |
|
|
311 | coro_get_av (pTHX_ const char *name, int create) |
|
|
312 | { |
|
|
313 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
314 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
315 | get_av (name, create); |
|
|
316 | #endif |
|
|
317 | return get_av (name, create); |
|
|
318 | } |
|
|
319 | |
|
|
320 | static HV * |
|
|
321 | coro_get_hv (pTHX_ const char *name, int create) |
|
|
322 | { |
|
|
323 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
324 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
325 | get_hv (name, create); |
|
|
326 | #endif |
|
|
327 | return get_hv (name, create); |
|
|
328 | } |
|
|
329 | |
|
|
330 | /* may croak */ |
|
|
331 | INLINE CV * |
|
|
332 | coro_sv_2cv (SV *sv) |
|
|
333 | { |
|
|
334 | HV *st; |
|
|
335 | GV *gvp; |
|
|
336 | return sv_2cv (sv, &st, &gvp, 0); |
|
|
337 | } |
248 | |
338 | |
249 | static AV * |
339 | static AV * |
250 | coro_clone_padlist (pTHX_ CV *cv) |
340 | coro_clone_padlist (pTHX_ CV *cv) |
251 | { |
341 | { |
252 | AV *padlist = CvPADLIST (cv); |
342 | AV *padlist = CvPADLIST (cv); |
253 | AV *newpadlist, *newpad; |
343 | AV *newpadlist, *newpad; |
254 | |
344 | |
255 | newpadlist = newAV (); |
345 | newpadlist = newAV (); |
256 | AvREAL_off (newpadlist); |
346 | AvREAL_off (newpadlist); |
257 | #if PERL_VERSION_ATLEAST (5,9,0) |
347 | #if PERL_VERSION_ATLEAST (5,10,0) |
258 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
348 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
259 | #else |
349 | #else |
260 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
350 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
261 | #endif |
351 | #endif |
262 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
352 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
263 | --AvFILLp (padlist); |
353 | --AvFILLp (padlist); |
264 | |
354 | |
265 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
355 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
266 | av_store (newpadlist, 1, (SV *)newpad); |
356 | av_store (newpadlist, 1, (SV *)newpad); |
267 | |
357 | |
268 | return newpadlist; |
358 | return newpadlist; |
269 | } |
359 | } |
270 | |
360 | |
… | |
… | |
300 | |
390 | |
301 | /* casting is fun. */ |
391 | /* casting is fun. */ |
302 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
392 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
303 | free_padlist (aTHX_ padlist); |
393 | free_padlist (aTHX_ padlist); |
304 | |
394 | |
305 | SvREFCNT_dec (av); |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
306 | |
396 | |
307 | return 0; |
397 | return 0; |
308 | } |
398 | } |
309 | |
399 | |
|
|
400 | #define CORO_MAGIC_type_cv 26 |
310 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
311 | |
402 | |
312 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
403 | static MGVTBL coro_cv_vtbl = { |
|
|
404 | 0, 0, 0, 0, |
|
|
405 | coro_cv_free |
|
|
406 | }; |
313 | |
407 | |
314 | #define CORO_MAGIC(cv) \ |
408 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
409 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
315 | SvMAGIC (cv) \ |
410 | ? SvMAGIC (sv) \ |
316 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
411 | : mg_find (sv, type)) |
317 | ? SvMAGIC (cv) \ |
412 | |
318 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
413 | #define CORO_MAGIC(sv, type) \ |
|
|
414 | (expect_true (SvMAGIC (sv)) \ |
|
|
415 | ? CORO_MAGIC_NN (sv, type) \ |
319 | : 0 |
416 | : 0) |
320 | |
417 | |
321 | static struct coro * |
418 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
419 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
420 | |
|
|
421 | INLINE struct coro * |
322 | SvSTATE_ (pTHX_ SV *coro) |
422 | SvSTATE_ (pTHX_ SV *coro) |
323 | { |
423 | { |
324 | HV *stash; |
424 | HV *stash; |
325 | MAGIC *mg; |
425 | MAGIC *mg; |
326 | |
426 | |
327 | if (SvROK (coro)) |
427 | if (SvROK (coro)) |
328 | coro = SvRV (coro); |
428 | coro = SvRV (coro); |
329 | |
429 | |
330 | if (SvTYPE (coro) != SVt_PVHV) |
430 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
331 | croak ("Coro::State object required"); |
431 | croak ("Coro::State object required"); |
332 | |
432 | |
333 | stash = SvSTASH (coro); |
433 | stash = SvSTASH (coro); |
334 | if (stash != coro_stash && stash != coro_state_stash) |
434 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
335 | { |
435 | { |
336 | /* very slow, but rare, check */ |
436 | /* very slow, but rare, check */ |
337 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
437 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
338 | croak ("Coro::State object required"); |
438 | croak ("Coro::State object required"); |
339 | } |
439 | } |
340 | |
440 | |
341 | mg = CORO_MAGIC (coro); |
441 | mg = CORO_MAGIC_state (coro); |
342 | return (struct coro *)mg->mg_ptr; |
442 | return (struct coro *)mg->mg_ptr; |
343 | } |
443 | } |
344 | |
444 | |
345 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
445 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
346 | |
446 | |
|
|
447 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
448 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
449 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
450 | |
347 | /* the next two functions merely cache the padlists */ |
451 | /* the next two functions merely cache the padlists */ |
348 | static void |
452 | static void |
349 | get_padlist (pTHX_ CV *cv) |
453 | get_padlist (pTHX_ CV *cv) |
350 | { |
454 | { |
351 | MAGIC *mg = CORO_MAGIC (cv); |
455 | MAGIC *mg = CORO_MAGIC_cv (cv); |
352 | AV *av; |
456 | AV *av; |
353 | |
457 | |
354 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
458 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
355 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
459 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
356 | else |
460 | else |
357 | { |
461 | { |
358 | #if CORO_PREFER_PERL_FUNCTIONS |
462 | #if CORO_PREFER_PERL_FUNCTIONS |
359 | /* this is probably cleaner, but also slower? */ |
463 | /* this is probably cleaner? but also slower! */ |
|
|
464 | /* in practise, it seems to be less stable */ |
360 | CV *cp = Perl_cv_clone (cv); |
465 | CV *cp = Perl_cv_clone (aTHX_ cv); |
361 | CvPADLIST (cv) = CvPADLIST (cp); |
466 | CvPADLIST (cv) = CvPADLIST (cp); |
362 | CvPADLIST (cp) = 0; |
467 | CvPADLIST (cp) = 0; |
363 | SvREFCNT_dec (cp); |
468 | SvREFCNT_dec (cp); |
364 | #else |
469 | #else |
365 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
470 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
368 | } |
473 | } |
369 | |
474 | |
370 | static void |
475 | static void |
371 | put_padlist (pTHX_ CV *cv) |
476 | put_padlist (pTHX_ CV *cv) |
372 | { |
477 | { |
373 | MAGIC *mg = CORO_MAGIC (cv); |
478 | MAGIC *mg = CORO_MAGIC_cv (cv); |
374 | AV *av; |
479 | AV *av; |
375 | |
480 | |
376 | if (!mg) |
481 | if (expect_false (!mg)) |
377 | { |
482 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
378 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
379 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
380 | mg->mg_virtual = &vtbl_coro; |
|
|
381 | mg->mg_obj = (SV *)newAV (); |
|
|
382 | } |
|
|
383 | |
483 | |
384 | av = (AV *)mg->mg_obj; |
484 | av = (AV *)mg->mg_obj; |
385 | |
485 | |
386 | if (AvFILLp (av) >= AvMAX (av)) |
486 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
387 | av_extend (av, AvMAX (av) + 1); |
487 | av_extend (av, AvMAX (av) + 1); |
388 | |
488 | |
389 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
489 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
390 | } |
490 | } |
391 | |
491 | |
392 | /** load & save, init *******************************************************/ |
492 | /** load & save, init *******************************************************/ |
393 | |
493 | |
394 | static void |
494 | static void |
395 | load_perl (pTHX_ Coro__State c) |
495 | load_perl (pTHX_ Coro__State c) |
396 | { |
496 | { |
|
|
497 | perl_slots *slot = c->slot; |
|
|
498 | c->slot = 0; |
|
|
499 | |
|
|
500 | PL_mainstack = c->mainstack; |
|
|
501 | |
|
|
502 | GvSV (PL_defgv) = slot->defsv; |
|
|
503 | GvAV (PL_defgv) = slot->defav; |
|
|
504 | GvSV (PL_errgv) = slot->errsv; |
|
|
505 | GvSV (irsgv) = slot->irsgv; |
|
|
506 | |
397 | #define VAR(name,type) PL_ ## name = c->name; |
507 | #define VAR(name,type) PL_ ## name = slot->name; |
398 | # include "state.h" |
508 | # include "state.h" |
399 | #undef VAR |
509 | #undef VAR |
400 | |
|
|
401 | GvSV (PL_defgv) = c->defsv; |
|
|
402 | GvAV (PL_defgv) = c->defav; |
|
|
403 | GvSV (PL_errgv) = c->errsv; |
|
|
404 | GvSV (irsgv) = c->irssv_sv; |
|
|
405 | |
510 | |
406 | { |
511 | { |
407 | dSP; |
512 | dSP; |
|
|
513 | |
408 | CV *cv; |
514 | CV *cv; |
409 | |
515 | |
410 | /* now do the ugly restore mess */ |
516 | /* now do the ugly restore mess */ |
411 | while ((cv = (CV *)POPs)) |
517 | while (expect_true (cv = (CV *)POPs)) |
412 | { |
518 | { |
413 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
519 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
414 | CvDEPTH (cv) = PTR2IV (POPs); |
520 | CvDEPTH (cv) = PTR2IV (POPs); |
415 | CvPADLIST (cv) = (AV *)POPs; |
521 | CvPADLIST (cv) = (AV *)POPs; |
416 | } |
522 | } |
417 | |
523 | |
418 | PUTBACK; |
524 | PUTBACK; |
419 | } |
525 | } |
|
|
526 | |
|
|
527 | slf_frame = c->slf_frame; |
|
|
528 | CORO_THROW = c->except; |
420 | } |
529 | } |
421 | |
530 | |
422 | static void |
531 | static void |
423 | save_perl (pTHX_ Coro__State c) |
532 | save_perl (pTHX_ Coro__State c) |
424 | { |
533 | { |
|
|
534 | c->except = CORO_THROW; |
|
|
535 | c->slf_frame = slf_frame; |
|
|
536 | |
425 | { |
537 | { |
426 | dSP; |
538 | dSP; |
427 | I32 cxix = cxstack_ix; |
539 | I32 cxix = cxstack_ix; |
428 | PERL_CONTEXT *ccstk = cxstack; |
540 | PERL_CONTEXT *ccstk = cxstack; |
429 | PERL_SI *top_si = PL_curstackinfo; |
541 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
435 | |
547 | |
436 | XPUSHs (Nullsv); |
548 | XPUSHs (Nullsv); |
437 | /* this loop was inspired by pp_caller */ |
549 | /* this loop was inspired by pp_caller */ |
438 | for (;;) |
550 | for (;;) |
439 | { |
551 | { |
440 | while (cxix >= 0) |
552 | while (expect_true (cxix >= 0)) |
441 | { |
553 | { |
442 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
554 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
443 | |
555 | |
444 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
556 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
445 | { |
557 | { |
446 | CV *cv = cx->blk_sub.cv; |
558 | CV *cv = cx->blk_sub.cv; |
447 | |
559 | |
448 | if (CvDEPTH (cv)) |
560 | if (expect_true (CvDEPTH (cv))) |
449 | { |
561 | { |
450 | EXTEND (SP, 3); |
562 | EXTEND (SP, 3); |
451 | PUSHs ((SV *)CvPADLIST (cv)); |
563 | PUSHs ((SV *)CvPADLIST (cv)); |
452 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
564 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
453 | PUSHs ((SV *)cv); |
565 | PUSHs ((SV *)cv); |
454 | |
566 | |
455 | CvDEPTH (cv) = 0; |
567 | CvDEPTH (cv) = 0; |
456 | get_padlist (aTHX_ cv); |
568 | get_padlist (aTHX_ cv); |
457 | } |
569 | } |
458 | } |
570 | } |
459 | } |
571 | } |
460 | |
572 | |
461 | if (top_si->si_type == PERLSI_MAIN) |
573 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
462 | break; |
574 | break; |
463 | |
575 | |
464 | top_si = top_si->si_prev; |
576 | top_si = top_si->si_prev; |
465 | ccstk = top_si->si_cxstack; |
577 | ccstk = top_si->si_cxstack; |
466 | cxix = top_si->si_cxix; |
578 | cxix = top_si->si_cxix; |
467 | } |
579 | } |
468 | |
580 | |
469 | PUTBACK; |
581 | PUTBACK; |
470 | } |
582 | } |
471 | |
583 | |
|
|
584 | /* allocate some space on the context stack for our purposes */ |
|
|
585 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
586 | if (SLOT_COUNT >= 1) CXINC; |
|
|
587 | if (SLOT_COUNT >= 2) CXINC; |
|
|
588 | if (SLOT_COUNT >= 3) CXINC; |
|
|
589 | { |
|
|
590 | int i; |
|
|
591 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
592 | CXINC; |
|
|
593 | } |
|
|
594 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
595 | |
|
|
596 | c->mainstack = PL_mainstack; |
|
|
597 | |
|
|
598 | { |
|
|
599 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
600 | |
472 | c->defav = GvAV (PL_defgv); |
601 | slot->defav = GvAV (PL_defgv); |
473 | c->defsv = DEFSV; |
602 | slot->defsv = DEFSV; |
474 | c->errsv = ERRSV; |
603 | slot->errsv = ERRSV; |
475 | c->irssv_sv = GvSV (irsgv); |
604 | slot->irsgv = GvSV (irsgv); |
476 | |
605 | |
477 | #define VAR(name,type)c->name = PL_ ## name; |
606 | #define VAR(name,type) slot->name = PL_ ## name; |
478 | # include "state.h" |
607 | # include "state.h" |
479 | #undef VAR |
608 | #undef VAR |
|
|
609 | } |
480 | } |
610 | } |
481 | |
611 | |
482 | /* |
612 | /* |
483 | * allocate various perl stacks. This is an exact copy |
613 | * allocate various perl stacks. This is almost an exact copy |
484 | * of perl.c:init_stacks, except that it uses less memory |
614 | * of perl.c:init_stacks, except that it uses less memory |
485 | * on the (sometimes correct) assumption that coroutines do |
615 | * on the (sometimes correct) assumption that coroutines do |
486 | * not usually need a lot of stackspace. |
616 | * not usually need a lot of stackspace. |
487 | */ |
617 | */ |
488 | #if CORO_PREFER_PERL_FUNCTIONS |
618 | #if CORO_PREFER_PERL_FUNCTIONS |
489 | # define coro_init_stacks init_stacks |
619 | # define coro_init_stacks(thx) init_stacks () |
490 | #else |
620 | #else |
491 | static void |
621 | static void |
492 | coro_init_stacks (pTHX) |
622 | coro_init_stacks (pTHX) |
493 | { |
623 | { |
494 | PL_curstackinfo = new_stackinfo(64, 6); |
624 | PL_curstackinfo = new_stackinfo(32, 8); |
495 | PL_curstackinfo->si_type = PERLSI_MAIN; |
625 | PL_curstackinfo->si_type = PERLSI_MAIN; |
496 | PL_curstack = PL_curstackinfo->si_stack; |
626 | PL_curstack = PL_curstackinfo->si_stack; |
497 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
627 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
498 | |
628 | |
499 | PL_stack_base = AvARRAY(PL_curstack); |
629 | PL_stack_base = AvARRAY(PL_curstack); |
500 | PL_stack_sp = PL_stack_base; |
630 | PL_stack_sp = PL_stack_base; |
501 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
631 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
502 | |
632 | |
503 | New(50,PL_tmps_stack,64,SV*); |
633 | New(50,PL_tmps_stack,32,SV*); |
504 | PL_tmps_floor = -1; |
634 | PL_tmps_floor = -1; |
505 | PL_tmps_ix = -1; |
635 | PL_tmps_ix = -1; |
506 | PL_tmps_max = 64; |
636 | PL_tmps_max = 32; |
507 | |
637 | |
508 | New(54,PL_markstack,16,I32); |
638 | New(54,PL_markstack,16,I32); |
509 | PL_markstack_ptr = PL_markstack; |
639 | PL_markstack_ptr = PL_markstack; |
510 | PL_markstack_max = PL_markstack + 16; |
640 | PL_markstack_max = PL_markstack + 16; |
511 | |
641 | |
512 | #ifdef SET_MARK_OFFSET |
642 | #ifdef SET_MARK_OFFSET |
513 | SET_MARK_OFFSET; |
643 | SET_MARK_OFFSET; |
514 | #endif |
644 | #endif |
515 | |
645 | |
516 | New(54,PL_scopestack,16,I32); |
646 | New(54,PL_scopestack,8,I32); |
517 | PL_scopestack_ix = 0; |
647 | PL_scopestack_ix = 0; |
518 | PL_scopestack_max = 16; |
648 | PL_scopestack_max = 8; |
519 | |
649 | |
520 | New(54,PL_savestack,64,ANY); |
650 | New(54,PL_savestack,24,ANY); |
521 | PL_savestack_ix = 0; |
651 | PL_savestack_ix = 0; |
522 | PL_savestack_max = 64; |
652 | PL_savestack_max = 24; |
523 | |
653 | |
524 | #if !PERL_VERSION_ATLEAST (5,9,0) |
654 | #if !PERL_VERSION_ATLEAST (5,10,0) |
525 | New(54,PL_retstack,4,OP*); |
655 | New(54,PL_retstack,4,OP*); |
526 | PL_retstack_ix = 0; |
656 | PL_retstack_ix = 0; |
527 | PL_retstack_max = 4; |
657 | PL_retstack_max = 4; |
528 | #endif |
658 | #endif |
529 | } |
659 | } |
… | |
… | |
531 | |
661 | |
532 | /* |
662 | /* |
533 | * destroy the stacks, the callchain etc... |
663 | * destroy the stacks, the callchain etc... |
534 | */ |
664 | */ |
535 | static void |
665 | static void |
536 | coro_destroy_stacks (pTHX) |
666 | coro_destruct_stacks (pTHX) |
537 | { |
667 | { |
538 | while (PL_curstackinfo->si_next) |
668 | while (PL_curstackinfo->si_next) |
539 | PL_curstackinfo = PL_curstackinfo->si_next; |
669 | PL_curstackinfo = PL_curstackinfo->si_next; |
540 | |
670 | |
541 | while (PL_curstackinfo) |
671 | while (PL_curstackinfo) |
… | |
… | |
552 | |
682 | |
553 | Safefree (PL_tmps_stack); |
683 | Safefree (PL_tmps_stack); |
554 | Safefree (PL_markstack); |
684 | Safefree (PL_markstack); |
555 | Safefree (PL_scopestack); |
685 | Safefree (PL_scopestack); |
556 | Safefree (PL_savestack); |
686 | Safefree (PL_savestack); |
557 | #if !PERL_VERSION_ATLEAST (5,9,0) |
687 | #if !PERL_VERSION_ATLEAST (5,10,0) |
558 | Safefree (PL_retstack); |
688 | Safefree (PL_retstack); |
559 | #endif |
689 | #endif |
560 | } |
690 | } |
561 | |
691 | |
562 | static size_t |
692 | static size_t |
… | |
… | |
564 | { |
694 | { |
565 | size_t rss = sizeof (*coro); |
695 | size_t rss = sizeof (*coro); |
566 | |
696 | |
567 | if (coro->mainstack) |
697 | if (coro->mainstack) |
568 | { |
698 | { |
|
|
699 | perl_slots tmp_slot; |
|
|
700 | perl_slots *slot; |
|
|
701 | |
569 | if (coro->flags & CF_RUNNING) |
702 | if (coro->flags & CF_RUNNING) |
570 | { |
703 | { |
|
|
704 | slot = &tmp_slot; |
|
|
705 | |
571 | #define VAR(name,type)coro->name = PL_ ## name; |
706 | #define VAR(name,type) slot->name = PL_ ## name; |
572 | # include "state.h" |
707 | # include "state.h" |
573 | #undef VAR |
708 | #undef VAR |
574 | } |
709 | } |
|
|
710 | else |
|
|
711 | slot = coro->slot; |
575 | |
712 | |
|
|
713 | if (slot) |
|
|
714 | { |
576 | rss += sizeof (coro->curstackinfo); |
715 | rss += sizeof (slot->curstackinfo); |
577 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
578 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
716 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
579 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
717 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
580 | rss += coro->tmps_max * sizeof (SV *); |
718 | rss += slot->tmps_max * sizeof (SV *); |
581 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
719 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
582 | rss += coro->scopestack_max * sizeof (I32); |
720 | rss += slot->scopestack_max * sizeof (I32); |
583 | rss += coro->savestack_max * sizeof (ANY); |
721 | rss += slot->savestack_max * sizeof (ANY); |
584 | |
722 | |
585 | #if !PERL_VERSION_ATLEAST (5,9,0) |
723 | #if !PERL_VERSION_ATLEAST (5,10,0) |
586 | rss += coro->retstack_max * sizeof (OP *); |
724 | rss += slot->retstack_max * sizeof (OP *); |
587 | #endif |
725 | #endif |
|
|
726 | } |
588 | } |
727 | } |
589 | |
728 | |
590 | return rss; |
729 | return rss; |
591 | } |
730 | } |
592 | |
731 | |
593 | /** coroutine stack handling ************************************************/ |
732 | /** coroutine stack handling ************************************************/ |
594 | |
733 | |
|
|
734 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
735 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
736 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
737 | |
|
|
738 | /* apparently < 5.8.8 */ |
|
|
739 | #ifndef MgPV_nolen_const |
|
|
740 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
741 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
742 | (const char*)(mg)->mg_ptr) |
|
|
743 | #endif |
|
|
744 | |
|
|
745 | /* |
|
|
746 | * This overrides the default magic get method of %SIG elements. |
|
|
747 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
748 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
749 | * readback here. |
|
|
750 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
751 | * not expecting this to actually change the hook. This is a potential problem |
|
|
752 | * when a schedule happens then, but we ignore this. |
|
|
753 | */ |
595 | static void |
754 | static int |
|
|
755 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
756 | { |
|
|
757 | const char *s = MgPV_nolen_const (mg); |
|
|
758 | |
|
|
759 | if (*s == '_') |
|
|
760 | { |
|
|
761 | SV **svp = 0; |
|
|
762 | |
|
|
763 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
764 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
765 | |
|
|
766 | if (svp) |
|
|
767 | { |
|
|
768 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
769 | return 0; |
|
|
770 | } |
|
|
771 | } |
|
|
772 | |
|
|
773 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
774 | } |
|
|
775 | |
|
|
776 | static int |
|
|
777 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
778 | { |
|
|
779 | const char *s = MgPV_nolen_const (mg); |
|
|
780 | |
|
|
781 | if (*s == '_') |
|
|
782 | { |
|
|
783 | SV **svp = 0; |
|
|
784 | |
|
|
785 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
786 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
787 | |
|
|
788 | if (svp) |
|
|
789 | { |
|
|
790 | SV *old = *svp; |
|
|
791 | *svp = 0; |
|
|
792 | SvREFCNT_dec (old); |
|
|
793 | return 0; |
|
|
794 | } |
|
|
795 | } |
|
|
796 | |
|
|
797 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
798 | } |
|
|
799 | |
|
|
800 | static int |
|
|
801 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
802 | { |
|
|
803 | const char *s = MgPV_nolen_const (mg); |
|
|
804 | |
|
|
805 | if (*s == '_') |
|
|
806 | { |
|
|
807 | SV **svp = 0; |
|
|
808 | |
|
|
809 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
810 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
811 | |
|
|
812 | if (svp) |
|
|
813 | { |
|
|
814 | SV *old = *svp; |
|
|
815 | *svp = newSVsv (sv); |
|
|
816 | SvREFCNT_dec (old); |
|
|
817 | return 0; |
|
|
818 | } |
|
|
819 | } |
|
|
820 | |
|
|
821 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
822 | } |
|
|
823 | |
|
|
824 | static void |
|
|
825 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
826 | { |
|
|
827 | /* kind of mega-hacky, but works */ |
|
|
828 | ta->next = ta->prev = (struct coro *)ta; |
|
|
829 | } |
|
|
830 | |
|
|
831 | static int |
|
|
832 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
833 | { |
|
|
834 | return 0; |
|
|
835 | } |
|
|
836 | |
|
|
837 | static UNOP coro_setup_op; |
|
|
838 | |
|
|
839 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
596 | coro_setup (pTHX_ struct coro *coro) |
840 | coro_setup (pTHX_ struct coro *coro) |
597 | { |
841 | { |
598 | /* |
842 | /* |
599 | * emulate part of the perl startup here. |
843 | * emulate part of the perl startup here. |
600 | */ |
844 | */ |
… | |
… | |
603 | PL_runops = RUNOPS_DEFAULT; |
847 | PL_runops = RUNOPS_DEFAULT; |
604 | PL_curcop = &PL_compiling; |
848 | PL_curcop = &PL_compiling; |
605 | PL_in_eval = EVAL_NULL; |
849 | PL_in_eval = EVAL_NULL; |
606 | PL_comppad = 0; |
850 | PL_comppad = 0; |
607 | PL_curpm = 0; |
851 | PL_curpm = 0; |
|
|
852 | PL_curpad = 0; |
608 | PL_localizing = 0; |
853 | PL_localizing = 0; |
609 | PL_dirty = 0; |
854 | PL_dirty = 0; |
610 | PL_restartop = 0; |
855 | PL_restartop = 0; |
|
|
856 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
857 | PL_parser = 0; |
|
|
858 | #endif |
|
|
859 | |
|
|
860 | /* recreate the die/warn hooks */ |
|
|
861 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
862 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
611 | |
863 | |
612 | GvSV (PL_defgv) = newSV (0); |
864 | GvSV (PL_defgv) = newSV (0); |
613 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
865 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
614 | GvSV (PL_errgv) = newSV (0); |
866 | GvSV (PL_errgv) = newSV (0); |
615 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
867 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
616 | PL_rs = newSVsv (GvSV (irsgv)); |
868 | PL_rs = newSVsv (GvSV (irsgv)); |
617 | PL_defoutgv = SvREFCNT_inc (stdoutgv); |
869 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
618 | |
870 | |
619 | { |
871 | { |
620 | dSP; |
872 | dSP; |
621 | LOGOP myop; |
873 | UNOP myop; |
622 | |
874 | |
623 | Zero (&myop, 1, LOGOP); |
875 | Zero (&myop, 1, UNOP); |
624 | myop.op_next = Nullop; |
876 | myop.op_next = Nullop; |
|
|
877 | myop.op_type = OP_ENTERSUB; |
625 | myop.op_flags = OPf_WANT_VOID; |
878 | myop.op_flags = OPf_WANT_VOID; |
626 | |
879 | |
627 | PUSHMARK (SP); |
880 | PUSHMARK (SP); |
628 | XPUSHs (av_shift (GvAV (PL_defgv))); |
881 | PUSHs ((SV *)coro->startcv); |
629 | PUTBACK; |
882 | PUTBACK; |
630 | PL_op = (OP *)&myop; |
883 | PL_op = (OP *)&myop; |
631 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
884 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
632 | SPAGAIN; |
|
|
633 | } |
885 | } |
634 | |
886 | |
635 | ENTER; /* necessary e.g. for dounwind */ |
887 | /* this newly created coroutine might be run on an existing cctx which most |
636 | } |
888 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
889 | */ |
|
|
890 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
891 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
637 | |
892 | |
|
|
893 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
894 | coro_setup_op.op_next = PL_op; |
|
|
895 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
896 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
897 | /* no flags etc. required, as an init function won't be called */ |
|
|
898 | |
|
|
899 | PL_op = (OP *)&coro_setup_op; |
|
|
900 | |
|
|
901 | /* copy throw, in case it was set before coro_setup */ |
|
|
902 | CORO_THROW = coro->except; |
|
|
903 | } |
|
|
904 | |
638 | static void |
905 | static void |
639 | coro_destroy (pTHX_ struct coro *coro) |
906 | coro_destruct (pTHX_ struct coro *coro) |
640 | { |
907 | { |
641 | if (!IN_DESTRUCT) |
908 | if (!IN_DESTRUCT) |
642 | { |
909 | { |
643 | /* restore all saved variables and stuff */ |
910 | /* restore all saved variables and stuff */ |
644 | LEAVE_SCOPE (0); |
911 | LEAVE_SCOPE (0); |
… | |
… | |
660 | SvREFCNT_dec (GvSV (PL_errgv)); |
927 | SvREFCNT_dec (GvSV (PL_errgv)); |
661 | SvREFCNT_dec (PL_defoutgv); |
928 | SvREFCNT_dec (PL_defoutgv); |
662 | SvREFCNT_dec (PL_rs); |
929 | SvREFCNT_dec (PL_rs); |
663 | SvREFCNT_dec (GvSV (irsgv)); |
930 | SvREFCNT_dec (GvSV (irsgv)); |
664 | |
931 | |
|
|
932 | SvREFCNT_dec (PL_diehook); |
|
|
933 | SvREFCNT_dec (PL_warnhook); |
|
|
934 | |
665 | SvREFCNT_dec (coro->saved_deffh); |
935 | SvREFCNT_dec (coro->saved_deffh); |
666 | //SvREFCNT_dec (coro->throw); |
936 | SvREFCNT_dec (coro->rouse_cb); |
667 | |
937 | |
668 | coro_destroy_stacks (aTHX); |
938 | coro_destruct_stacks (aTHX); |
669 | } |
939 | } |
670 | |
940 | |
671 | static void |
941 | INLINE void |
672 | free_coro_mortal (pTHX) |
942 | free_coro_mortal (pTHX) |
673 | { |
943 | { |
674 | if (coro_mortal) |
944 | if (expect_true (coro_mortal)) |
675 | { |
945 | { |
676 | SvREFCNT_dec (coro_mortal); |
946 | SvREFCNT_dec (coro_mortal); |
677 | coro_mortal = 0; |
947 | coro_mortal = 0; |
678 | } |
948 | } |
679 | } |
949 | } |
… | |
… | |
681 | static int |
951 | static int |
682 | runops_trace (pTHX) |
952 | runops_trace (pTHX) |
683 | { |
953 | { |
684 | COP *oldcop = 0; |
954 | COP *oldcop = 0; |
685 | int oldcxix = -2; |
955 | int oldcxix = -2; |
686 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
956 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
687 | coro_cctx *cctx = coro->cctx; |
957 | coro_cctx *cctx = coro->cctx; |
688 | |
958 | |
689 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
959 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
690 | { |
960 | { |
691 | PERL_ASYNC_CHECK (); |
961 | PERL_ASYNC_CHECK (); |
… | |
… | |
708 | bot = PL_stack_base + cx->blk_oldsp + 1; |
978 | bot = PL_stack_base + cx->blk_oldsp + 1; |
709 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
979 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
710 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
980 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
711 | : bot; |
981 | : bot; |
712 | |
982 | |
|
|
983 | av_extend (av, top - bot); |
713 | while (bot < top) |
984 | while (bot < top) |
714 | av_push (av, SvREFCNT_inc (*bot++)); |
985 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
715 | |
986 | |
716 | PL_runops = RUNOPS_DEFAULT; |
987 | PL_runops = RUNOPS_DEFAULT; |
717 | ENTER; |
988 | ENTER; |
718 | SAVETMPS; |
989 | SAVETMPS; |
719 | EXTEND (SP, 3); |
990 | EXTEND (SP, 3); |
… | |
… | |
757 | SAVETMPS; |
1028 | SAVETMPS; |
758 | EXTEND (SP, 3); |
1029 | EXTEND (SP, 3); |
759 | PUSHMARK (SP); |
1030 | PUSHMARK (SP); |
760 | PUSHs (&PL_sv_yes); |
1031 | PUSHs (&PL_sv_yes); |
761 | PUSHs (fullname); |
1032 | PUSHs (fullname); |
762 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1033 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
763 | PUTBACK; |
1034 | PUTBACK; |
764 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1035 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
765 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1036 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
766 | SPAGAIN; |
1037 | SPAGAIN; |
767 | FREETMPS; |
1038 | FREETMPS; |
… | |
… | |
799 | |
1070 | |
800 | TAINT_NOT; |
1071 | TAINT_NOT; |
801 | return 0; |
1072 | return 0; |
802 | } |
1073 | } |
803 | |
1074 | |
804 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1075 | static struct coro_cctx *cctx_ssl_cctx; |
805 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1076 | static struct CoroSLF cctx_ssl_frame; |
806 | /* during execution of a perl program */ |
1077 | |
|
|
1078 | static void |
|
|
1079 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1080 | { |
|
|
1081 | ta->prev = (struct coro *)cctx_ssl_cctx; |
|
|
1082 | ta->next = 0; |
|
|
1083 | } |
|
|
1084 | |
|
|
1085 | static int |
|
|
1086 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1087 | { |
|
|
1088 | *frame = cctx_ssl_frame; |
|
|
1089 | |
|
|
1090 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
807 | static void NOINLINE |
1094 | static void NOINLINE |
808 | prepare_cctx (pTHX_ coro_cctx *cctx) |
1095 | cctx_prepare (pTHX_ coro_cctx *cctx) |
809 | { |
1096 | { |
810 | dSP; |
|
|
811 | LOGOP myop; |
|
|
812 | |
|
|
813 | PL_top_env = &PL_start_env; |
1097 | PL_top_env = &PL_start_env; |
814 | |
1098 | |
815 | if (cctx->flags & CC_TRACE) |
1099 | if (cctx->flags & CC_TRACE) |
816 | PL_runops = runops_trace; |
1100 | PL_runops = runops_trace; |
817 | |
1101 | |
818 | Zero (&myop, 1, LOGOP); |
1102 | /* we already must be executing an SLF op, there is no other valid way |
819 | myop.op_next = PL_op; |
1103 | * that can lead to creation of a new cctx */ |
820 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1104 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1105 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
821 | |
1106 | |
822 | PUSHMARK (SP); |
1107 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
823 | EXTEND (SP, 2); |
1108 | cctx_ssl_cctx = cctx; |
824 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1109 | cctx_ssl_frame = slf_frame; |
825 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1110 | |
826 | PUTBACK; |
1111 | slf_frame.prepare = slf_prepare_set_stacklevel; |
827 | PL_op = (OP *)&myop; |
1112 | slf_frame.check = slf_check_set_stacklevel; |
828 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1113 | } |
829 | SPAGAIN; |
1114 | |
|
|
1115 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1116 | INLINE void |
|
|
1117 | transfer_tail (pTHX) |
|
|
1118 | { |
|
|
1119 | free_coro_mortal (aTHX); |
830 | } |
1120 | } |
831 | |
1121 | |
832 | /* |
1122 | /* |
833 | * this is a _very_ stripped down perl interpreter ;) |
1123 | * this is a _very_ stripped down perl interpreter ;) |
834 | */ |
1124 | */ |
835 | static void |
1125 | static void |
836 | coro_run (void *arg) |
1126 | cctx_run (void *arg) |
837 | { |
1127 | { |
|
|
1128 | #ifdef USE_ITHREADS |
|
|
1129 | # if CORO_PTHREAD |
|
|
1130 | PERL_SET_CONTEXT (coro_thx); |
|
|
1131 | # endif |
|
|
1132 | #endif |
|
|
1133 | { |
838 | dTHX; |
1134 | dTHX; |
839 | |
1135 | |
840 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1136 | /* normally we would need to skip the entersub here */ |
841 | UNLOCK; |
1137 | /* not doing so will re-execute it, which is exactly what we want */ |
842 | |
|
|
843 | /* we now skip the entersub that lead to transfer() */ |
|
|
844 | PL_op = PL_op->op_next; |
1138 | /* PL_nop = PL_nop->op_next */ |
845 | |
1139 | |
846 | /* inject a fake subroutine call to cctx_init */ |
1140 | /* inject a fake subroutine call to cctx_init */ |
847 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1141 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
848 | |
1142 | |
|
|
1143 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1144 | transfer_tail (aTHX); |
|
|
1145 | |
849 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1146 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
850 | PL_restartop = PL_op; |
1147 | PL_restartop = PL_op; |
851 | perl_run (PL_curinterp); |
1148 | perl_run (PL_curinterp); |
852 | |
|
|
853 | /* |
1149 | /* |
|
|
1150 | * Unfortunately, there is no way to get at the return values of the |
|
|
1151 | * coro body here, as perl_run destroys these |
|
|
1152 | */ |
|
|
1153 | |
|
|
1154 | /* |
854 | * If perl-run returns we assume exit() was being called or the coro |
1155 | * If perl-run returns we assume exit() was being called or the coro |
855 | * fell off the end, which seems to be the only valid (non-bug) |
1156 | * fell off the end, which seems to be the only valid (non-bug) |
856 | * reason for perl_run to return. We try to exit by jumping to the |
1157 | * reason for perl_run to return. We try to exit by jumping to the |
857 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1158 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
858 | * coroutine as Coro has no such concept |
1159 | * coroutine as Coro has no such concept |
859 | */ |
1160 | */ |
860 | PL_top_env = main_top_env; |
1161 | PL_top_env = main_top_env; |
861 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1162 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1163 | } |
862 | } |
1164 | } |
863 | |
1165 | |
864 | static coro_cctx * |
1166 | static coro_cctx * |
865 | cctx_new () |
1167 | cctx_new () |
866 | { |
1168 | { |
867 | coro_cctx *cctx; |
1169 | coro_cctx *cctx; |
|
|
1170 | |
|
|
1171 | ++cctx_count; |
|
|
1172 | New (0, cctx, 1, coro_cctx); |
|
|
1173 | |
|
|
1174 | cctx->gen = cctx_gen; |
|
|
1175 | cctx->flags = 0; |
|
|
1176 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1177 | |
|
|
1178 | return cctx; |
|
|
1179 | } |
|
|
1180 | |
|
|
1181 | /* create a new cctx only suitable as source */ |
|
|
1182 | static coro_cctx * |
|
|
1183 | cctx_new_empty () |
|
|
1184 | { |
|
|
1185 | coro_cctx *cctx = cctx_new (); |
|
|
1186 | |
|
|
1187 | cctx->sptr = 0; |
|
|
1188 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1189 | |
|
|
1190 | return cctx; |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1194 | static coro_cctx * |
|
|
1195 | cctx_new_run () |
|
|
1196 | { |
|
|
1197 | coro_cctx *cctx = cctx_new (); |
868 | void *stack_start; |
1198 | void *stack_start; |
869 | size_t stack_size; |
1199 | size_t stack_size; |
870 | |
1200 | |
871 | ++cctx_count; |
|
|
872 | |
|
|
873 | Newz (0, cctx, 1, coro_cctx); |
|
|
874 | |
|
|
875 | #if HAVE_MMAP |
1201 | #if HAVE_MMAP |
876 | |
|
|
877 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1202 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
878 | /* mmap supposedly does allocate-on-write for us */ |
1203 | /* mmap supposedly does allocate-on-write for us */ |
879 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1204 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
880 | |
1205 | |
881 | if (cctx->sptr != (void *)-1) |
1206 | if (cctx->sptr != (void *)-1) |
882 | { |
1207 | { |
883 | # if CORO_STACKGUARD |
1208 | #if CORO_STACKGUARD |
884 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1209 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
885 | # endif |
1210 | #endif |
886 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1211 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
887 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1212 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
888 | cctx->flags |= CC_MAPPED; |
1213 | cctx->flags |= CC_MAPPED; |
889 | } |
1214 | } |
890 | else |
1215 | else |
891 | #endif |
1216 | #endif |
892 | { |
1217 | { |
893 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1218 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
894 | New (0, cctx->sptr, coro_stacksize, long); |
1219 | New (0, cctx->sptr, cctx_stacksize, long); |
895 | |
1220 | |
896 | if (!cctx->sptr) |
1221 | if (!cctx->sptr) |
897 | { |
1222 | { |
898 | perror ("FATAL: unable to allocate stack for coroutine"); |
1223 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
899 | _exit (EXIT_FAILURE); |
1224 | _exit (EXIT_FAILURE); |
900 | } |
1225 | } |
901 | |
1226 | |
902 | stack_start = cctx->sptr; |
1227 | stack_start = cctx->sptr; |
903 | stack_size = cctx->ssize; |
1228 | stack_size = cctx->ssize; |
904 | } |
1229 | } |
905 | |
1230 | |
906 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1231 | #if CORO_USE_VALGRIND |
|
|
1232 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1233 | #endif |
|
|
1234 | |
907 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1235 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
908 | |
1236 | |
909 | return cctx; |
1237 | return cctx; |
910 | } |
1238 | } |
911 | |
1239 | |
912 | static void |
1240 | static void |
… | |
… | |
914 | { |
1242 | { |
915 | if (!cctx) |
1243 | if (!cctx) |
916 | return; |
1244 | return; |
917 | |
1245 | |
918 | --cctx_count; |
1246 | --cctx_count; |
|
|
1247 | coro_destroy (&cctx->cctx); |
919 | |
1248 | |
|
|
1249 | /* coro_transfer creates new, empty cctx's */ |
|
|
1250 | if (cctx->sptr) |
|
|
1251 | { |
920 | #if CORO_USE_VALGRIND |
1252 | #if CORO_USE_VALGRIND |
921 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1253 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
922 | #endif |
1254 | #endif |
923 | |
1255 | |
924 | #if HAVE_MMAP |
1256 | #if HAVE_MMAP |
925 | if (cctx->flags & CC_MAPPED) |
1257 | if (cctx->flags & CC_MAPPED) |
926 | munmap (cctx->sptr, cctx->ssize); |
1258 | munmap (cctx->sptr, cctx->ssize); |
927 | else |
1259 | else |
928 | #endif |
1260 | #endif |
929 | Safefree (cctx->sptr); |
1261 | Safefree (cctx->sptr); |
|
|
1262 | } |
930 | |
1263 | |
931 | Safefree (cctx); |
1264 | Safefree (cctx); |
932 | } |
1265 | } |
|
|
1266 | |
|
|
1267 | /* wether this cctx should be destructed */ |
|
|
1268 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
933 | |
1269 | |
934 | static coro_cctx * |
1270 | static coro_cctx * |
935 | cctx_get (pTHX) |
1271 | cctx_get (pTHX) |
936 | { |
1272 | { |
937 | while (cctx_first) |
1273 | while (expect_true (cctx_first)) |
938 | { |
1274 | { |
939 | coro_cctx *cctx = cctx_first; |
1275 | coro_cctx *cctx = cctx_first; |
940 | cctx_first = cctx->next; |
1276 | cctx_first = cctx->next; |
941 | --cctx_idle; |
1277 | --cctx_idle; |
942 | |
1278 | |
943 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
1279 | if (expect_true (!CCTX_EXPIRED (cctx))) |
944 | return cctx; |
1280 | return cctx; |
945 | |
1281 | |
946 | cctx_destroy (cctx); |
1282 | cctx_destroy (cctx); |
947 | } |
1283 | } |
948 | |
1284 | |
949 | return cctx_new (); |
1285 | return cctx_new_run (); |
950 | } |
1286 | } |
951 | |
1287 | |
952 | static void |
1288 | static void |
953 | cctx_put (coro_cctx *cctx) |
1289 | cctx_put (coro_cctx *cctx) |
954 | { |
1290 | { |
|
|
1291 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1292 | |
955 | /* free another cctx if overlimit */ |
1293 | /* free another cctx if overlimit */ |
956 | if (cctx_idle >= MAX_IDLE_CCTX) |
1294 | if (expect_false (cctx_idle >= cctx_max_idle)) |
957 | { |
1295 | { |
958 | coro_cctx *first = cctx_first; |
1296 | coro_cctx *first = cctx_first; |
959 | cctx_first = first->next; |
1297 | cctx_first = first->next; |
960 | --cctx_idle; |
1298 | --cctx_idle; |
961 | |
1299 | |
… | |
… | |
967 | cctx_first = cctx; |
1305 | cctx_first = cctx; |
968 | } |
1306 | } |
969 | |
1307 | |
970 | /** coroutine switching *****************************************************/ |
1308 | /** coroutine switching *****************************************************/ |
971 | |
1309 | |
972 | static void NOINLINE |
1310 | static void |
973 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1311 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
974 | { |
1312 | { |
975 | if (prev != next) |
1313 | /* TODO: throwing up here is considered harmful */ |
|
|
1314 | |
|
|
1315 | if (expect_true (prev != next)) |
976 | { |
1316 | { |
977 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
1317 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
978 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1318 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
979 | |
1319 | |
980 | if (next->flags & CF_RUNNING) |
1320 | if (expect_false (next->flags & CF_RUNNING)) |
981 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1321 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
982 | |
1322 | |
983 | if (next->flags & CF_DESTROYED) |
1323 | if (expect_false (next->flags & CF_DESTROYED)) |
984 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1324 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
985 | |
1325 | |
|
|
1326 | #if !PERL_VERSION_ATLEAST (5,10,0) |
986 | if (PL_lex_state != LEX_NOTPARSING) |
1327 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
987 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1328 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1329 | #endif |
988 | } |
1330 | } |
989 | } |
1331 | } |
990 | |
1332 | |
991 | /* always use the TRANSFER macro */ |
1333 | /* always use the TRANSFER macro */ |
992 | static void NOINLINE |
1334 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
993 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1335 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
994 | { |
1336 | { |
995 | dSTACKLEVEL; |
1337 | dSTACKLEVEL; |
996 | |
1338 | |
997 | /* sometimes transfer is only called to set idle_sp */ |
1339 | /* sometimes transfer is only called to set idle_sp */ |
998 | if (!next) |
1340 | if (expect_false (!next)) |
999 | { |
1341 | { |
1000 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1342 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1001 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1343 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1002 | } |
1344 | } |
1003 | else if (prev != next) |
1345 | else if (expect_true (prev != next)) |
1004 | { |
1346 | { |
1005 | coro_cctx *prev__cctx; |
1347 | coro_cctx *prev__cctx; |
1006 | |
1348 | |
1007 | if (prev->flags & CF_NEW) |
1349 | if (expect_false (prev->flags & CF_NEW)) |
1008 | { |
1350 | { |
1009 | /* create a new empty context */ |
1351 | /* create a new empty/source context */ |
1010 | Newz (0, prev->cctx, 1, coro_cctx); |
1352 | prev->cctx = cctx_new_empty (); |
1011 | prev->flags &= ~CF_NEW; |
1353 | prev->flags &= ~CF_NEW; |
1012 | prev->flags |= CF_RUNNING; |
1354 | prev->flags |= CF_RUNNING; |
1013 | } |
1355 | } |
1014 | |
1356 | |
1015 | prev->flags &= ~CF_RUNNING; |
1357 | prev->flags &= ~CF_RUNNING; |
1016 | next->flags |= CF_RUNNING; |
1358 | next->flags |= CF_RUNNING; |
1017 | |
1359 | |
1018 | LOCK; |
1360 | /* first get rid of the old state */ |
|
|
1361 | save_perl (aTHX_ prev); |
1019 | |
1362 | |
1020 | if (next->flags & CF_NEW) |
1363 | if (expect_false (next->flags & CF_NEW)) |
1021 | { |
1364 | { |
1022 | /* need to start coroutine */ |
1365 | /* need to start coroutine */ |
1023 | next->flags &= ~CF_NEW; |
1366 | next->flags &= ~CF_NEW; |
1024 | /* first get rid of the old state */ |
|
|
1025 | save_perl (aTHX_ prev); |
|
|
1026 | /* setup coroutine call */ |
1367 | /* setup coroutine call */ |
1027 | coro_setup (aTHX_ next); |
1368 | coro_setup (aTHX_ next); |
1028 | } |
1369 | } |
1029 | else |
1370 | else |
|
|
1371 | load_perl (aTHX_ next); |
|
|
1372 | |
|
|
1373 | prev__cctx = prev->cctx; |
|
|
1374 | |
|
|
1375 | /* possibly untie and reuse the cctx */ |
|
|
1376 | if (expect_true ( |
|
|
1377 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1378 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1379 | && !force_cctx |
|
|
1380 | )) |
1030 | { |
1381 | { |
1031 | /* coroutine already started */ |
|
|
1032 | save_perl (aTHX_ prev); |
|
|
1033 | load_perl (aTHX_ next); |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | prev__cctx = prev->cctx; |
|
|
1037 | |
|
|
1038 | /* possibly "free" the cctx */ |
|
|
1039 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
|
|
1040 | { |
|
|
1041 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1382 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1042 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1383 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1043 | |
1384 | |
1044 | prev->cctx = 0; |
1385 | prev->cctx = 0; |
|
|
1386 | |
|
|
1387 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1388 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1389 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1390 | if (!next->cctx) |
|
|
1391 | next->cctx = cctx_get (aTHX); |
1045 | |
1392 | |
1046 | cctx_put (prev__cctx); |
1393 | cctx_put (prev__cctx); |
1047 | } |
1394 | } |
1048 | |
1395 | |
1049 | ++next->usecount; |
1396 | ++next->usecount; |
1050 | |
1397 | |
1051 | if (!next->cctx) |
1398 | if (expect_true (!next->cctx)) |
1052 | next->cctx = cctx_get (aTHX); |
1399 | next->cctx = cctx_get (aTHX); |
1053 | |
1400 | |
1054 | if (prev__cctx != next->cctx) |
1401 | if (expect_false (prev__cctx != next->cctx)) |
1055 | { |
1402 | { |
1056 | prev__cctx->top_env = PL_top_env; |
1403 | prev__cctx->top_env = PL_top_env; |
1057 | PL_top_env = next->cctx->top_env; |
1404 | PL_top_env = next->cctx->top_env; |
1058 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1405 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1059 | } |
1406 | } |
1060 | |
1407 | |
1061 | free_coro_mortal (aTHX); |
1408 | transfer_tail (aTHX); |
1062 | UNLOCK; |
|
|
1063 | } |
1409 | } |
1064 | } |
1410 | } |
1065 | |
1411 | |
1066 | struct transfer_args |
|
|
1067 | { |
|
|
1068 | struct coro *prev, *next; |
|
|
1069 | }; |
|
|
1070 | |
|
|
1071 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1412 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1072 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1413 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1073 | |
1414 | |
1074 | /** high level stuff ********************************************************/ |
1415 | /** high level stuff ********************************************************/ |
1075 | |
1416 | |
1076 | static int |
1417 | static int |
1077 | coro_state_destroy (pTHX_ struct coro *coro) |
1418 | coro_state_destroy (pTHX_ struct coro *coro) |
1078 | { |
1419 | { |
1079 | if (coro->flags & CF_DESTROYED) |
1420 | if (coro->flags & CF_DESTROYED) |
1080 | return 0; |
1421 | return 0; |
|
|
1422 | |
|
|
1423 | if (coro->on_destroy) |
|
|
1424 | coro->on_destroy (aTHX_ coro); |
1081 | |
1425 | |
1082 | coro->flags |= CF_DESTROYED; |
1426 | coro->flags |= CF_DESTROYED; |
1083 | |
1427 | |
1084 | if (coro->flags & CF_READY) |
1428 | if (coro->flags & CF_READY) |
1085 | { |
1429 | { |
1086 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1430 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1087 | /* alternative: look through all ready queues and remove the coro */ |
1431 | /* alternative: look through all ready queues and remove the coro */ |
1088 | LOCK; |
|
|
1089 | --coro_nready; |
1432 | --coro_nready; |
1090 | UNLOCK; |
|
|
1091 | } |
1433 | } |
1092 | else |
1434 | else |
1093 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1435 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1094 | |
1436 | |
1095 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1437 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1096 | { |
1438 | { |
1097 | struct coro temp; |
1439 | struct coro temp; |
1098 | |
1440 | |
1099 | if (coro->flags & CF_RUNNING) |
1441 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1100 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1101 | |
1442 | |
1102 | save_perl (aTHX_ &temp); |
1443 | save_perl (aTHX_ &temp); |
1103 | load_perl (aTHX_ coro); |
1444 | load_perl (aTHX_ coro); |
1104 | |
1445 | |
1105 | coro_destroy (aTHX_ coro); |
1446 | coro_destruct (aTHX_ coro); |
1106 | |
1447 | |
1107 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
1448 | load_perl (aTHX_ &temp); |
1108 | |
1449 | |
1109 | coro->mainstack = 0; |
1450 | coro->slot = 0; |
1110 | } |
1451 | } |
1111 | |
1452 | |
1112 | cctx_destroy (coro->cctx); |
1453 | cctx_destroy (coro->cctx); |
|
|
1454 | SvREFCNT_dec (coro->startcv); |
1113 | SvREFCNT_dec (coro->args); |
1455 | SvREFCNT_dec (coro->args); |
|
|
1456 | SvREFCNT_dec (CORO_THROW); |
1114 | |
1457 | |
1115 | if (coro->next) coro->next->prev = coro->prev; |
1458 | if (coro->next) coro->next->prev = coro->prev; |
1116 | if (coro->prev) coro->prev->next = coro->next; |
1459 | if (coro->prev) coro->prev->next = coro->next; |
1117 | if (coro == coro_first) coro_first = coro->next; |
1460 | if (coro == coro_first) coro_first = coro->next; |
1118 | |
1461 | |
… | |
… | |
1156 | # define MGf_DUP 0 |
1499 | # define MGf_DUP 0 |
1157 | #endif |
1500 | #endif |
1158 | }; |
1501 | }; |
1159 | |
1502 | |
1160 | static void |
1503 | static void |
1161 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1504 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1162 | { |
1505 | { |
1163 | ta->prev = SvSTATE (prev_sv); |
1506 | ta->prev = SvSTATE (prev_sv); |
1164 | ta->next = SvSTATE (next_sv); |
1507 | ta->next = SvSTATE (next_sv); |
1165 | TRANSFER_CHECK (*ta); |
1508 | TRANSFER_CHECK (*ta); |
1166 | } |
1509 | } |
1167 | |
1510 | |
1168 | static void |
1511 | static void |
1169 | api_transfer (SV *prev_sv, SV *next_sv) |
1512 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1170 | { |
1513 | { |
1171 | dTHX; |
|
|
1172 | struct transfer_args ta; |
1514 | struct coro_transfer_args ta; |
1173 | |
1515 | |
1174 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1516 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1175 | TRANSFER (ta); |
1517 | TRANSFER (ta, 1); |
|
|
1518 | } |
|
|
1519 | |
|
|
1520 | /*****************************************************************************/ |
|
|
1521 | /* gensub: simple closure generation utility */ |
|
|
1522 | |
|
|
1523 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1524 | |
|
|
1525 | /* create a closure from XS, returns a code reference */ |
|
|
1526 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1527 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1528 | static SV * |
|
|
1529 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1530 | { |
|
|
1531 | CV *cv = (CV *)newSV (0); |
|
|
1532 | |
|
|
1533 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1534 | |
|
|
1535 | CvANON_on (cv); |
|
|
1536 | CvISXSUB_on (cv); |
|
|
1537 | CvXSUB (cv) = xsub; |
|
|
1538 | GENSUB_ARG = arg; |
|
|
1539 | |
|
|
1540 | return newRV_noinc ((SV *)cv); |
1176 | } |
1541 | } |
1177 | |
1542 | |
1178 | /** Coro ********************************************************************/ |
1543 | /** Coro ********************************************************************/ |
1179 | |
1544 | |
1180 | static void |
1545 | INLINE void |
1181 | coro_enq (pTHX_ SV *coro_sv) |
1546 | coro_enq (pTHX_ struct coro *coro) |
1182 | { |
1547 | { |
1183 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1548 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1184 | } |
1549 | } |
1185 | |
1550 | |
1186 | static SV * |
1551 | INLINE SV * |
1187 | coro_deq (pTHX_ int min_prio) |
1552 | coro_deq (pTHX) |
1188 | { |
1553 | { |
1189 | int prio = PRIO_MAX - PRIO_MIN; |
1554 | int prio; |
1190 | |
1555 | |
1191 | min_prio -= PRIO_MIN; |
|
|
1192 | if (min_prio < 0) |
|
|
1193 | min_prio = 0; |
|
|
1194 | |
|
|
1195 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1556 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1196 | if (AvFILLp (coro_ready [prio]) >= 0) |
1557 | if (AvFILLp (coro_ready [prio]) >= 0) |
1197 | return av_shift (coro_ready [prio]); |
1558 | return av_shift (coro_ready [prio]); |
1198 | |
1559 | |
1199 | return 0; |
1560 | return 0; |
1200 | } |
1561 | } |
1201 | |
1562 | |
1202 | static int |
1563 | static int |
1203 | api_ready (SV *coro_sv) |
1564 | api_ready (pTHX_ SV *coro_sv) |
1204 | { |
1565 | { |
1205 | dTHX; |
|
|
1206 | struct coro *coro; |
1566 | struct coro *coro; |
|
|
1567 | SV *sv_hook; |
|
|
1568 | void (*xs_hook)(void); |
1207 | |
1569 | |
1208 | if (SvROK (coro_sv)) |
1570 | if (SvROK (coro_sv)) |
1209 | coro_sv = SvRV (coro_sv); |
1571 | coro_sv = SvRV (coro_sv); |
1210 | |
1572 | |
1211 | coro = SvSTATE (coro_sv); |
1573 | coro = SvSTATE (coro_sv); |
… | |
… | |
1213 | if (coro->flags & CF_READY) |
1575 | if (coro->flags & CF_READY) |
1214 | return 0; |
1576 | return 0; |
1215 | |
1577 | |
1216 | coro->flags |= CF_READY; |
1578 | coro->flags |= CF_READY; |
1217 | |
1579 | |
1218 | LOCK; |
1580 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1219 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1581 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1582 | |
|
|
1583 | coro_enq (aTHX_ coro); |
1220 | ++coro_nready; |
1584 | ++coro_nready; |
1221 | UNLOCK; |
1585 | |
|
|
1586 | if (sv_hook) |
|
|
1587 | { |
|
|
1588 | dSP; |
|
|
1589 | |
|
|
1590 | ENTER; |
|
|
1591 | SAVETMPS; |
|
|
1592 | |
|
|
1593 | PUSHMARK (SP); |
|
|
1594 | PUTBACK; |
|
|
1595 | call_sv (sv_hook, G_VOID | G_DISCARD); |
|
|
1596 | |
|
|
1597 | FREETMPS; |
|
|
1598 | LEAVE; |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | if (xs_hook) |
|
|
1602 | xs_hook (); |
1222 | |
1603 | |
1223 | return 1; |
1604 | return 1; |
1224 | } |
1605 | } |
1225 | |
1606 | |
1226 | static int |
1607 | static int |
1227 | api_is_ready (SV *coro_sv) |
1608 | api_is_ready (pTHX_ SV *coro_sv) |
1228 | { |
1609 | { |
1229 | dTHX; |
|
|
1230 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1610 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1231 | } |
1611 | } |
1232 | |
1612 | |
1233 | static void |
1613 | INLINE void |
1234 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1614 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1235 | { |
1615 | { |
1236 | SV *prev_sv, *next_sv; |
1616 | SV *prev_sv, *next_sv; |
1237 | |
1617 | |
1238 | for (;;) |
1618 | for (;;) |
1239 | { |
1619 | { |
1240 | LOCK; |
|
|
1241 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1620 | next_sv = coro_deq (aTHX); |
1242 | |
1621 | |
1243 | /* nothing to schedule: call the idle handler */ |
1622 | /* nothing to schedule: call the idle handler */ |
1244 | if (!next_sv) |
1623 | if (expect_false (!next_sv)) |
1245 | { |
1624 | { |
1246 | dSP; |
1625 | dSP; |
1247 | UNLOCK; |
|
|
1248 | |
1626 | |
1249 | ENTER; |
1627 | ENTER; |
1250 | SAVETMPS; |
1628 | SAVETMPS; |
1251 | |
1629 | |
1252 | PUSHMARK (SP); |
1630 | PUSHMARK (SP); |
1253 | PUTBACK; |
1631 | PUTBACK; |
1254 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1632 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1255 | |
1633 | |
1256 | FREETMPS; |
1634 | FREETMPS; |
1257 | LEAVE; |
1635 | LEAVE; |
1258 | continue; |
1636 | continue; |
1259 | } |
1637 | } |
1260 | |
1638 | |
1261 | ta->next = SvSTATE (next_sv); |
1639 | ta->next = SvSTATE_hv (next_sv); |
1262 | |
1640 | |
1263 | /* cannot transfer to destroyed coros, skip and look for next */ |
1641 | /* cannot transfer to destroyed coros, skip and look for next */ |
1264 | if (ta->next->flags & CF_DESTROYED) |
1642 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1265 | { |
1643 | { |
1266 | UNLOCK; |
|
|
1267 | SvREFCNT_dec (next_sv); |
1644 | SvREFCNT_dec (next_sv); |
1268 | /* coro_nready is already taken care of by destroy */ |
1645 | /* coro_nready has already been taken care of by destroy */ |
1269 | continue; |
1646 | continue; |
1270 | } |
1647 | } |
1271 | |
1648 | |
1272 | --coro_nready; |
1649 | --coro_nready; |
1273 | UNLOCK; |
|
|
1274 | break; |
1650 | break; |
1275 | } |
1651 | } |
1276 | |
1652 | |
1277 | /* free this only after the transfer */ |
1653 | /* free this only after the transfer */ |
1278 | prev_sv = SvRV (coro_current); |
1654 | prev_sv = SvRV (coro_current); |
1279 | ta->prev = SvSTATE (prev_sv); |
1655 | ta->prev = SvSTATE_hv (prev_sv); |
1280 | TRANSFER_CHECK (*ta); |
1656 | TRANSFER_CHECK (*ta); |
1281 | assert (ta->next->flags & CF_READY); |
1657 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1282 | ta->next->flags &= ~CF_READY; |
1658 | ta->next->flags &= ~CF_READY; |
1283 | SvRV_set (coro_current, next_sv); |
1659 | SvRV_set (coro_current, next_sv); |
1284 | |
1660 | |
1285 | LOCK; |
|
|
1286 | free_coro_mortal (aTHX); |
1661 | free_coro_mortal (aTHX); |
1287 | coro_mortal = prev_sv; |
1662 | coro_mortal = prev_sv; |
1288 | UNLOCK; |
|
|
1289 | } |
1663 | } |
1290 | |
1664 | |
1291 | static void |
1665 | INLINE void |
1292 | prepare_cede (pTHX_ struct transfer_args *ta) |
1666 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1293 | { |
1667 | { |
1294 | api_ready (coro_current); |
1668 | api_ready (aTHX_ coro_current); |
1295 | prepare_schedule (aTHX_ ta); |
1669 | prepare_schedule (aTHX_ ta); |
1296 | } |
1670 | } |
1297 | |
1671 | |
|
|
1672 | INLINE void |
|
|
1673 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1674 | { |
|
|
1675 | SV *prev = SvRV (coro_current); |
|
|
1676 | |
|
|
1677 | if (coro_nready) |
|
|
1678 | { |
|
|
1679 | prepare_schedule (aTHX_ ta); |
|
|
1680 | api_ready (aTHX_ prev); |
|
|
1681 | } |
|
|
1682 | else |
|
|
1683 | prepare_nop (aTHX_ ta); |
|
|
1684 | } |
|
|
1685 | |
|
|
1686 | static void |
|
|
1687 | api_schedule (pTHX) |
|
|
1688 | { |
|
|
1689 | struct coro_transfer_args ta; |
|
|
1690 | |
|
|
1691 | prepare_schedule (aTHX_ &ta); |
|
|
1692 | TRANSFER (ta, 1); |
|
|
1693 | } |
|
|
1694 | |
1298 | static int |
1695 | static int |
1299 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1696 | api_cede (pTHX) |
1300 | { |
1697 | { |
1301 | if (coro_nready) |
1698 | struct coro_transfer_args ta; |
1302 | { |
1699 | |
1303 | SV *prev = SvRV (coro_current); |
|
|
1304 | prepare_schedule (aTHX_ ta); |
1700 | prepare_cede (aTHX_ &ta); |
1305 | api_ready (prev); |
1701 | |
|
|
1702 | if (expect_true (ta.prev != ta.next)) |
|
|
1703 | { |
|
|
1704 | TRANSFER (ta, 1); |
1306 | return 1; |
1705 | return 1; |
1307 | } |
1706 | } |
1308 | else |
1707 | else |
1309 | return 0; |
1708 | return 0; |
1310 | } |
1709 | } |
1311 | |
1710 | |
1312 | static void |
|
|
1313 | api_schedule (void) |
|
|
1314 | { |
|
|
1315 | dTHX; |
|
|
1316 | struct transfer_args ta; |
|
|
1317 | |
|
|
1318 | prepare_schedule (aTHX_ &ta); |
|
|
1319 | TRANSFER (ta); |
|
|
1320 | } |
|
|
1321 | |
|
|
1322 | static int |
1711 | static int |
1323 | api_cede (void) |
1712 | api_cede_notself (pTHX) |
1324 | { |
1713 | { |
1325 | dTHX; |
1714 | if (coro_nready) |
|
|
1715 | { |
1326 | struct transfer_args ta; |
1716 | struct coro_transfer_args ta; |
1327 | |
1717 | |
1328 | prepare_cede (aTHX_ &ta); |
1718 | prepare_cede_notself (aTHX_ &ta); |
1329 | |
|
|
1330 | if (ta.prev != ta.next) |
|
|
1331 | { |
|
|
1332 | TRANSFER (ta); |
1719 | TRANSFER (ta, 1); |
1333 | return 1; |
1720 | return 1; |
1334 | } |
1721 | } |
1335 | else |
1722 | else |
1336 | return 0; |
1723 | return 0; |
1337 | } |
1724 | } |
1338 | |
1725 | |
1339 | static int |
1726 | static void |
1340 | api_cede_notself (void) |
|
|
1341 | { |
|
|
1342 | dTHX; |
|
|
1343 | struct transfer_args ta; |
|
|
1344 | |
|
|
1345 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1346 | { |
|
|
1347 | TRANSFER (ta); |
|
|
1348 | return 1; |
|
|
1349 | } |
|
|
1350 | else |
|
|
1351 | return 0; |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | static void |
|
|
1355 | api_trace (SV *coro_sv, int flags) |
1727 | api_trace (pTHX_ SV *coro_sv, int flags) |
1356 | { |
1728 | { |
1357 | dTHX; |
|
|
1358 | struct coro *coro = SvSTATE (coro_sv); |
1729 | struct coro *coro = SvSTATE (coro_sv); |
1359 | |
1730 | |
1360 | if (flags & CC_TRACE) |
1731 | if (flags & CC_TRACE) |
1361 | { |
1732 | { |
1362 | if (!coro->cctx) |
1733 | if (!coro->cctx) |
1363 | coro->cctx = cctx_new (); |
1734 | coro->cctx = cctx_new_run (); |
1364 | else if (!(coro->cctx->flags & CC_TRACE)) |
1735 | else if (!(coro->cctx->flags & CC_TRACE)) |
1365 | croak ("cannot enable tracing on coroutine with custom stack"); |
1736 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1366 | |
1737 | |
1367 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1738 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1368 | } |
1739 | } |
1369 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1740 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1370 | { |
1741 | { |
1371 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1742 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1372 | |
1743 | |
1373 | if (coro->flags & CF_RUNNING) |
1744 | if (coro->flags & CF_RUNNING) |
1374 | PL_runops = RUNOPS_DEFAULT; |
1745 | PL_runops = RUNOPS_DEFAULT; |
1375 | else |
1746 | else |
1376 | coro->runops = RUNOPS_DEFAULT; |
1747 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1748 | } |
|
|
1749 | } |
|
|
1750 | |
|
|
1751 | /*****************************************************************************/ |
|
|
1752 | /* rouse callback */ |
|
|
1753 | |
|
|
1754 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1755 | |
|
|
1756 | static void |
|
|
1757 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1758 | { |
|
|
1759 | dXSARGS; |
|
|
1760 | SV *data = (SV *)GENSUB_ARG; |
|
|
1761 | |
|
|
1762 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
1377 | } |
1763 | { |
|
|
1764 | /* first call, set args */ |
|
|
1765 | int i; |
|
|
1766 | AV *av = newAV (); |
|
|
1767 | SV *coro = SvRV (data); |
|
|
1768 | |
|
|
1769 | SvRV_set (data, (SV *)av); |
|
|
1770 | api_ready (aTHX_ coro); |
|
|
1771 | SvREFCNT_dec (coro); |
|
|
1772 | |
|
|
1773 | /* better take a full copy of the arguments */ |
|
|
1774 | while (items--) |
|
|
1775 | av_store (av, items, newSVsv (ST (items))); |
|
|
1776 | } |
|
|
1777 | |
|
|
1778 | XSRETURN_EMPTY; |
1378 | } |
1779 | } |
|
|
1780 | |
|
|
1781 | static int |
|
|
1782 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1783 | { |
|
|
1784 | SV *data = (SV *)frame->data; |
|
|
1785 | |
|
|
1786 | if (CORO_THROW) |
|
|
1787 | return 0; |
|
|
1788 | |
|
|
1789 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1790 | return 1; |
|
|
1791 | |
|
|
1792 | /* now push all results on the stack */ |
|
|
1793 | { |
|
|
1794 | dSP; |
|
|
1795 | AV *av = (AV *)SvRV (data); |
|
|
1796 | int i; |
|
|
1797 | |
|
|
1798 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1799 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1800 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1801 | |
|
|
1802 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1803 | AvFILLp (av) = -1; |
|
|
1804 | av_undef (av); |
|
|
1805 | |
|
|
1806 | PUTBACK; |
|
|
1807 | } |
|
|
1808 | |
|
|
1809 | return 0; |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | static void |
|
|
1813 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1814 | { |
|
|
1815 | SV *cb; |
|
|
1816 | |
|
|
1817 | if (items) |
|
|
1818 | cb = arg [0]; |
|
|
1819 | else |
|
|
1820 | { |
|
|
1821 | struct coro *coro = SvSTATE_current; |
|
|
1822 | |
|
|
1823 | if (!coro->rouse_cb) |
|
|
1824 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1825 | |
|
|
1826 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1827 | coro->rouse_cb = 0; |
|
|
1828 | } |
|
|
1829 | |
|
|
1830 | if (!SvROK (cb) |
|
|
1831 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1832 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1833 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1834 | |
|
|
1835 | { |
|
|
1836 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1837 | SV *data = (SV *)GENSUB_ARG; |
|
|
1838 | |
|
|
1839 | frame->data = (void *)data; |
|
|
1840 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
1841 | frame->check = slf_check_rouse_wait; |
|
|
1842 | } |
|
|
1843 | } |
|
|
1844 | |
|
|
1845 | static SV * |
|
|
1846 | coro_new_rouse_cb (pTHX) |
|
|
1847 | { |
|
|
1848 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1849 | struct coro *coro = SvSTATE_hv (hv); |
|
|
1850 | SV *data = newRV_inc ((SV *)hv); |
|
|
1851 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
1852 | |
|
|
1853 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
1854 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
1855 | |
|
|
1856 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1857 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
1858 | |
|
|
1859 | return cb; |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | /*****************************************************************************/ |
|
|
1863 | /* schedule-like-function opcode (SLF) */ |
|
|
1864 | |
|
|
1865 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1866 | static const CV *slf_cv; |
|
|
1867 | static SV **slf_argv; |
|
|
1868 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1869 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1870 | |
|
|
1871 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1872 | /* recreate the stack frame as perl will on following calls */ |
|
|
1873 | /* since entersub cleared the stack */ |
|
|
1874 | static OP * |
|
|
1875 | pp_restore (pTHX) |
|
|
1876 | { |
|
|
1877 | int i; |
|
|
1878 | SV **SP = PL_stack_base + slf_ax; |
|
|
1879 | |
|
|
1880 | PUSHMARK (SP); |
|
|
1881 | |
|
|
1882 | EXTEND (SP, slf_argc + 1); |
|
|
1883 | |
|
|
1884 | for (i = 0; i < slf_argc; ++i) |
|
|
1885 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1886 | |
|
|
1887 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1888 | |
|
|
1889 | RETURNOP (slf_restore.op_first); |
|
|
1890 | } |
|
|
1891 | |
|
|
1892 | static void |
|
|
1893 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1894 | { |
|
|
1895 | SV **arg = (SV **)slf_frame.data; |
|
|
1896 | |
|
|
1897 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1898 | } |
|
|
1899 | |
|
|
1900 | static void |
|
|
1901 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1902 | { |
|
|
1903 | if (items != 2) |
|
|
1904 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1905 | |
|
|
1906 | frame->prepare = slf_prepare_transfer; |
|
|
1907 | frame->check = slf_check_nop; |
|
|
1908 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | static void |
|
|
1912 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1913 | { |
|
|
1914 | frame->prepare = prepare_schedule; |
|
|
1915 | frame->check = slf_check_nop; |
|
|
1916 | } |
|
|
1917 | |
|
|
1918 | static void |
|
|
1919 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1920 | { |
|
|
1921 | frame->prepare = prepare_cede; |
|
|
1922 | frame->check = slf_check_nop; |
|
|
1923 | } |
|
|
1924 | |
|
|
1925 | static void |
|
|
1926 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1927 | { |
|
|
1928 | frame->prepare = prepare_cede_notself; |
|
|
1929 | frame->check = slf_check_nop; |
|
|
1930 | } |
|
|
1931 | |
|
|
1932 | /* |
|
|
1933 | * these not obviously related functions are all rolled into one |
|
|
1934 | * function to increase chances that they all will call transfer with the same |
|
|
1935 | * stack offset |
|
|
1936 | * SLF stands for "schedule-like-function". |
|
|
1937 | */ |
|
|
1938 | static OP * |
|
|
1939 | pp_slf (pTHX) |
|
|
1940 | { |
|
|
1941 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1942 | |
|
|
1943 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1944 | /* the latter happens when a new coro has been started */ |
|
|
1945 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1946 | if (expect_true (!slf_frame.prepare)) |
|
|
1947 | { |
|
|
1948 | /* first iteration */ |
|
|
1949 | dSP; |
|
|
1950 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1951 | int items = SP - arg; /* args without function object */ |
|
|
1952 | SV *gv = *sp; |
|
|
1953 | |
|
|
1954 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1955 | /* for us, divert to the real entersub */ |
|
|
1956 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1957 | || !GvCV (gv) |
|
|
1958 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1959 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1960 | |
|
|
1961 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1962 | { |
|
|
1963 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1964 | AV *av = GvAV (PL_defgv); |
|
|
1965 | arg = AvARRAY (av); |
|
|
1966 | items = AvFILLp (av) + 1; |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1970 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1971 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1972 | |
|
|
1973 | /* pop args */ |
|
|
1974 | SP = PL_stack_base + POPMARK; |
|
|
1975 | |
|
|
1976 | PUTBACK; |
|
|
1977 | } |
|
|
1978 | |
|
|
1979 | /* now that we have a slf_frame, interpret it! */ |
|
|
1980 | /* we use a callback system not to make the code needlessly */ |
|
|
1981 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1982 | |
|
|
1983 | do |
|
|
1984 | { |
|
|
1985 | struct coro_transfer_args ta; |
|
|
1986 | |
|
|
1987 | slf_frame.prepare (aTHX_ &ta); |
|
|
1988 | TRANSFER (ta, 0); |
|
|
1989 | |
|
|
1990 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1991 | } |
|
|
1992 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1993 | |
|
|
1994 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1995 | |
|
|
1996 | /* exception handling */ |
|
|
1997 | if (expect_false (CORO_THROW)) |
|
|
1998 | { |
|
|
1999 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2000 | |
|
|
2001 | CORO_THROW = 0; |
|
|
2002 | sv_setsv (ERRSV, exception); |
|
|
2003 | croak (0); |
|
|
2004 | } |
|
|
2005 | |
|
|
2006 | /* return value handling - mostly like entersub */ |
|
|
2007 | /* make sure we put something on the stack in scalar context */ |
|
|
2008 | if (GIMME_V == G_SCALAR) |
|
|
2009 | { |
|
|
2010 | dSP; |
|
|
2011 | SV **bot = PL_stack_base + checkmark; |
|
|
2012 | |
|
|
2013 | if (sp == bot) /* too few, push undef */ |
|
|
2014 | bot [1] = &PL_sv_undef; |
|
|
2015 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2016 | bot [1] = *sp; |
|
|
2017 | |
|
|
2018 | SP = bot + 1; |
|
|
2019 | |
|
|
2020 | PUTBACK; |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | return NORMAL; |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | static void |
|
|
2027 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2028 | { |
|
|
2029 | int i; |
|
|
2030 | SV **arg = PL_stack_base + ax; |
|
|
2031 | int items = PL_stack_sp - arg + 1; |
|
|
2032 | |
|
|
2033 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2034 | |
|
|
2035 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2036 | && PL_op->op_ppaddr != pp_slf) |
|
|
2037 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2038 | |
|
|
2039 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2040 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2041 | slf_cv = cv; |
|
|
2042 | |
|
|
2043 | /* we patch the op, and then re-run the whole call */ |
|
|
2044 | /* we have to put the same argument on the stack for this to work */ |
|
|
2045 | /* and this will be done by pp_restore */ |
|
|
2046 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2047 | slf_restore.op_type = OP_CUSTOM; |
|
|
2048 | slf_restore.op_ppaddr = pp_restore; |
|
|
2049 | slf_restore.op_first = PL_op; |
|
|
2050 | |
|
|
2051 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2052 | |
|
|
2053 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2054 | { |
|
|
2055 | if (items > slf_arga) |
|
|
2056 | { |
|
|
2057 | slf_arga = items; |
|
|
2058 | free (slf_argv); |
|
|
2059 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2060 | } |
|
|
2061 | |
|
|
2062 | slf_argc = items; |
|
|
2063 | |
|
|
2064 | for (i = 0; i < items; ++i) |
|
|
2065 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2066 | } |
|
|
2067 | else |
|
|
2068 | slf_argc = 0; |
|
|
2069 | |
|
|
2070 | PL_op->op_ppaddr = pp_slf; |
|
|
2071 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2072 | |
|
|
2073 | PL_op = (OP *)&slf_restore; |
|
|
2074 | } |
|
|
2075 | |
|
|
2076 | /*****************************************************************************/ |
|
|
2077 | /* PerlIO::cede */ |
|
|
2078 | |
|
|
2079 | typedef struct |
|
|
2080 | { |
|
|
2081 | PerlIOBuf base; |
|
|
2082 | NV next, every; |
|
|
2083 | } PerlIOCede; |
|
|
2084 | |
|
|
2085 | static IV |
|
|
2086 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2087 | { |
|
|
2088 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2089 | |
|
|
2090 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2091 | self->next = nvtime () + self->every; |
|
|
2092 | |
|
|
2093 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | static SV * |
|
|
2097 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2098 | { |
|
|
2099 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2100 | |
|
|
2101 | return newSVnv (self->every); |
|
|
2102 | } |
|
|
2103 | |
|
|
2104 | static IV |
|
|
2105 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2106 | { |
|
|
2107 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2108 | double now = nvtime (); |
|
|
2109 | |
|
|
2110 | if (now >= self->next) |
|
|
2111 | { |
|
|
2112 | api_cede (aTHX); |
|
|
2113 | self->next = now + self->every; |
|
|
2114 | } |
|
|
2115 | |
|
|
2116 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | static PerlIO_funcs PerlIO_cede = |
|
|
2120 | { |
|
|
2121 | sizeof(PerlIO_funcs), |
|
|
2122 | "cede", |
|
|
2123 | sizeof(PerlIOCede), |
|
|
2124 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2125 | PerlIOCede_pushed, |
|
|
2126 | PerlIOBuf_popped, |
|
|
2127 | PerlIOBuf_open, |
|
|
2128 | PerlIOBase_binmode, |
|
|
2129 | PerlIOCede_getarg, |
|
|
2130 | PerlIOBase_fileno, |
|
|
2131 | PerlIOBuf_dup, |
|
|
2132 | PerlIOBuf_read, |
|
|
2133 | PerlIOBuf_unread, |
|
|
2134 | PerlIOBuf_write, |
|
|
2135 | PerlIOBuf_seek, |
|
|
2136 | PerlIOBuf_tell, |
|
|
2137 | PerlIOBuf_close, |
|
|
2138 | PerlIOCede_flush, |
|
|
2139 | PerlIOBuf_fill, |
|
|
2140 | PerlIOBase_eof, |
|
|
2141 | PerlIOBase_error, |
|
|
2142 | PerlIOBase_clearerr, |
|
|
2143 | PerlIOBase_setlinebuf, |
|
|
2144 | PerlIOBuf_get_base, |
|
|
2145 | PerlIOBuf_bufsiz, |
|
|
2146 | PerlIOBuf_get_ptr, |
|
|
2147 | PerlIOBuf_get_cnt, |
|
|
2148 | PerlIOBuf_set_ptrcnt, |
|
|
2149 | }; |
|
|
2150 | |
|
|
2151 | /*****************************************************************************/ |
|
|
2152 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2153 | |
|
|
2154 | static SV * |
|
|
2155 | coro_waitarray_new (pTHX_ int count) |
|
|
2156 | { |
|
|
2157 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2158 | AV *av = newAV (); |
|
|
2159 | SV **ary; |
|
|
2160 | |
|
|
2161 | /* unfortunately, building manually saves memory */ |
|
|
2162 | Newx (ary, 2, SV *); |
|
|
2163 | AvALLOC (av) = ary; |
|
|
2164 | /*AvARRAY (av) = ary;*/ |
|
|
2165 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2166 | AvMAX (av) = 1; |
|
|
2167 | AvFILLp (av) = 0; |
|
|
2168 | ary [0] = newSViv (count); |
|
|
2169 | |
|
|
2170 | return newRV_noinc ((SV *)av); |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | /* semaphore */ |
|
|
2174 | |
|
|
2175 | static void |
|
|
2176 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2177 | { |
|
|
2178 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2179 | IV count = SvIVX (count_sv); |
|
|
2180 | |
|
|
2181 | count += adjust; |
|
|
2182 | SvIVX (count_sv) = count; |
|
|
2183 | |
|
|
2184 | /* now wake up as many waiters as are expected to lock */ |
|
|
2185 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2186 | { |
|
|
2187 | SV *cb; |
|
|
2188 | |
|
|
2189 | /* swap first two elements so we can shift a waiter */ |
|
|
2190 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2191 | AvARRAY (av)[1] = count_sv; |
|
|
2192 | cb = av_shift (av); |
|
|
2193 | |
|
|
2194 | if (SvOBJECT (cb)) |
|
|
2195 | { |
|
|
2196 | api_ready (aTHX_ cb); |
|
|
2197 | --count; |
|
|
2198 | } |
|
|
2199 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2200 | { |
|
|
2201 | dSP; |
|
|
2202 | PUSHMARK (SP); |
|
|
2203 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2204 | PUTBACK; |
|
|
2205 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2206 | } |
|
|
2207 | |
|
|
2208 | SvREFCNT_dec (cb); |
|
|
2209 | } |
|
|
2210 | } |
|
|
2211 | |
|
|
2212 | static void |
|
|
2213 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2214 | { |
|
|
2215 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2216 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2217 | } |
|
|
2218 | |
|
|
2219 | static int |
|
|
2220 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2221 | { |
|
|
2222 | AV *av = (AV *)frame->data; |
|
|
2223 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2224 | |
|
|
2225 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2226 | if (CORO_THROW) |
|
|
2227 | return 0; |
|
|
2228 | else if (SvIVX (count_sv) > 0) |
|
|
2229 | { |
|
|
2230 | SvSTATE_current->on_destroy = 0; |
|
|
2231 | |
|
|
2232 | if (acquire) |
|
|
2233 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2234 | else |
|
|
2235 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2236 | |
|
|
2237 | return 0; |
|
|
2238 | } |
|
|
2239 | else |
|
|
2240 | { |
|
|
2241 | int i; |
|
|
2242 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2243 | /* waiters list and only add us if we aren't in there already */ |
|
|
2244 | /* this avoids some degenerate memory usage cases */ |
|
|
2245 | |
|
|
2246 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2247 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2248 | return 1; |
|
|
2249 | |
|
|
2250 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2251 | return 1; |
|
|
2252 | } |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | static int |
|
|
2256 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2257 | { |
|
|
2258 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | static int |
|
|
2262 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2263 | { |
|
|
2264 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | static void |
|
|
2268 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2269 | { |
|
|
2270 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2271 | |
|
|
2272 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2273 | { |
|
|
2274 | frame->data = (void *)av; |
|
|
2275 | frame->prepare = prepare_nop; |
|
|
2276 | } |
|
|
2277 | else |
|
|
2278 | { |
|
|
2279 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2280 | |
|
|
2281 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2282 | frame->prepare = prepare_schedule; |
|
|
2283 | |
|
|
2284 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2285 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2286 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2287 | } |
|
|
2288 | } |
|
|
2289 | |
|
|
2290 | static void |
|
|
2291 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2292 | { |
|
|
2293 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2294 | frame->check = slf_check_semaphore_down; |
|
|
2295 | } |
|
|
2296 | |
|
|
2297 | static void |
|
|
2298 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2299 | { |
|
|
2300 | if (items >= 2) |
|
|
2301 | { |
|
|
2302 | /* callback form */ |
|
|
2303 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2304 | CV *cb_cv = coro_sv_2cv (arg [1]); |
|
|
2305 | |
|
|
2306 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2307 | |
|
|
2308 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2309 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2310 | |
|
|
2311 | frame->prepare = prepare_nop; |
|
|
2312 | frame->check = slf_check_nop; |
|
|
2313 | } |
|
|
2314 | else |
|
|
2315 | { |
|
|
2316 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2317 | frame->check = slf_check_semaphore_wait; |
|
|
2318 | } |
|
|
2319 | } |
|
|
2320 | |
|
|
2321 | /* signal */ |
|
|
2322 | |
|
|
2323 | static void |
|
|
2324 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2325 | { |
|
|
2326 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2327 | |
|
|
2328 | /* now signal count waiters */ |
|
|
2329 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2330 | { |
|
|
2331 | SV *cb; |
|
|
2332 | |
|
|
2333 | /* swap first two elements so we can shift a waiter */ |
|
|
2334 | cb = AvARRAY (av)[0]; |
|
|
2335 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2336 | AvARRAY (av)[1] = cb; |
|
|
2337 | |
|
|
2338 | cb = av_shift (av); |
|
|
2339 | |
|
|
2340 | api_ready (aTHX_ cb); |
|
|
2341 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2342 | SvREFCNT_dec (cb); |
|
|
2343 | |
|
|
2344 | --count; |
|
|
2345 | } |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | static int |
|
|
2349 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2350 | { |
|
|
2351 | /* if we are about to throw, also stop waiting */ |
|
|
2352 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2353 | } |
|
|
2354 | |
|
|
2355 | static void |
|
|
2356 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2357 | { |
|
|
2358 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2359 | |
|
|
2360 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2361 | { |
|
|
2362 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2363 | frame->prepare = prepare_nop; |
|
|
2364 | frame->check = slf_check_nop; |
|
|
2365 | } |
|
|
2366 | else |
|
|
2367 | { |
|
|
2368 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2369 | |
|
|
2370 | av_push (av, waiter); |
|
|
2371 | |
|
|
2372 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2373 | frame->prepare = prepare_schedule; |
|
|
2374 | frame->check = slf_check_signal_wait; |
|
|
2375 | } |
|
|
2376 | } |
|
|
2377 | |
|
|
2378 | /*****************************************************************************/ |
|
|
2379 | /* Coro::AIO */ |
|
|
2380 | |
|
|
2381 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2382 | |
|
|
2383 | /* helper storage struct */ |
|
|
2384 | struct io_state |
|
|
2385 | { |
|
|
2386 | int errorno; |
|
|
2387 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2388 | int laststatval; |
|
|
2389 | Stat_t statcache; |
|
|
2390 | }; |
|
|
2391 | |
|
|
2392 | static void |
|
|
2393 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2394 | { |
|
|
2395 | dXSARGS; |
|
|
2396 | AV *state = (AV *)GENSUB_ARG; |
|
|
2397 | SV *coro = av_pop (state); |
|
|
2398 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2399 | |
|
|
2400 | av_extend (state, items); |
|
|
2401 | |
|
|
2402 | sv_upgrade (data_sv, SVt_PV); |
|
|
2403 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2404 | SvPOK_only (data_sv); |
|
|
2405 | |
|
|
2406 | { |
|
|
2407 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2408 | |
|
|
2409 | data->errorno = errno; |
|
|
2410 | data->laststype = PL_laststype; |
|
|
2411 | data->laststatval = PL_laststatval; |
|
|
2412 | data->statcache = PL_statcache; |
|
|
2413 | } |
|
|
2414 | |
|
|
2415 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2416 | { |
|
|
2417 | int i; |
|
|
2418 | |
|
|
2419 | for (i = 0; i < items; ++i) |
|
|
2420 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2421 | } |
|
|
2422 | |
|
|
2423 | av_push (state, data_sv); |
|
|
2424 | |
|
|
2425 | api_ready (aTHX_ coro); |
|
|
2426 | SvREFCNT_dec (coro); |
|
|
2427 | SvREFCNT_dec ((AV *)state); |
|
|
2428 | } |
|
|
2429 | |
|
|
2430 | static int |
|
|
2431 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2432 | { |
|
|
2433 | AV *state = (AV *)frame->data; |
|
|
2434 | |
|
|
2435 | /* if we are about to throw, return early */ |
|
|
2436 | /* this does not cancel the aio request, but at least */ |
|
|
2437 | /* it quickly returns */ |
|
|
2438 | if (CORO_THROW) |
|
|
2439 | return 0; |
|
|
2440 | |
|
|
2441 | /* one element that is an RV? repeat! */ |
|
|
2442 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2443 | return 1; |
|
|
2444 | |
|
|
2445 | /* restore status */ |
|
|
2446 | { |
|
|
2447 | SV *data_sv = av_pop (state); |
|
|
2448 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2449 | |
|
|
2450 | errno = data->errorno; |
|
|
2451 | PL_laststype = data->laststype; |
|
|
2452 | PL_laststatval = data->laststatval; |
|
|
2453 | PL_statcache = data->statcache; |
|
|
2454 | |
|
|
2455 | SvREFCNT_dec (data_sv); |
|
|
2456 | } |
|
|
2457 | |
|
|
2458 | /* push result values */ |
|
|
2459 | { |
|
|
2460 | dSP; |
|
|
2461 | int i; |
|
|
2462 | |
|
|
2463 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2464 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2465 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2466 | |
|
|
2467 | PUTBACK; |
|
|
2468 | } |
|
|
2469 | |
|
|
2470 | return 0; |
|
|
2471 | } |
|
|
2472 | |
|
|
2473 | static void |
|
|
2474 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2475 | { |
|
|
2476 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2477 | SV *coro_hv = SvRV (coro_current); |
|
|
2478 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2479 | |
|
|
2480 | /* put our coroutine id on the state arg */ |
|
|
2481 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2482 | |
|
|
2483 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2484 | if (coro->prio) |
|
|
2485 | { |
|
|
2486 | dSP; |
|
|
2487 | |
|
|
2488 | static SV *prio_cv; |
|
|
2489 | static SV *prio_sv; |
|
|
2490 | |
|
|
2491 | if (expect_false (!prio_cv)) |
|
|
2492 | { |
|
|
2493 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2494 | prio_sv = newSViv (0); |
|
|
2495 | } |
|
|
2496 | |
|
|
2497 | PUSHMARK (SP); |
|
|
2498 | sv_setiv (prio_sv, coro->prio); |
|
|
2499 | XPUSHs (prio_sv); |
|
|
2500 | |
|
|
2501 | PUTBACK; |
|
|
2502 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2503 | } |
|
|
2504 | |
|
|
2505 | /* now call the original request */ |
|
|
2506 | { |
|
|
2507 | dSP; |
|
|
2508 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2509 | int i; |
|
|
2510 | |
|
|
2511 | PUSHMARK (SP); |
|
|
2512 | |
|
|
2513 | /* first push all args to the stack */ |
|
|
2514 | EXTEND (SP, items + 1); |
|
|
2515 | |
|
|
2516 | for (i = 0; i < items; ++i) |
|
|
2517 | PUSHs (arg [i]); |
|
|
2518 | |
|
|
2519 | /* now push the callback closure */ |
|
|
2520 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2521 | |
|
|
2522 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2523 | PUTBACK; |
|
|
2524 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2528 | frame->data = (void *)state; |
|
|
2529 | frame->prepare = prepare_schedule; |
|
|
2530 | frame->check = slf_check_aio_req; |
|
|
2531 | } |
|
|
2532 | |
|
|
2533 | static void |
|
|
2534 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2535 | { |
|
|
2536 | dXSARGS; |
|
|
2537 | |
|
|
2538 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2539 | |
|
|
2540 | XSRETURN_EMPTY; |
|
|
2541 | } |
|
|
2542 | |
|
|
2543 | /*****************************************************************************/ |
1379 | |
2544 | |
1380 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2545 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1381 | |
2546 | |
1382 | PROTOTYPES: DISABLE |
2547 | PROTOTYPES: DISABLE |
1383 | |
2548 | |
1384 | BOOT: |
2549 | BOOT: |
1385 | { |
2550 | { |
1386 | #ifdef USE_ITHREADS |
2551 | #ifdef USE_ITHREADS |
1387 | MUTEX_INIT (&coro_mutex); |
2552 | # if CORO_PTHREAD |
|
|
2553 | coro_thx = PERL_GET_CONTEXT; |
|
|
2554 | # endif |
1388 | #endif |
2555 | #endif |
1389 | BOOT_PAGESIZE; |
2556 | BOOT_PAGESIZE; |
1390 | |
2557 | |
1391 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2558 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1392 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2559 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
2560 | |
|
|
2561 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
2562 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2563 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
2564 | |
|
|
2565 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
2566 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
2567 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1393 | |
2568 | |
1394 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2569 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1395 | |
2570 | |
1396 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
2571 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1397 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
2572 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1402 | main_top_env = PL_top_env; |
2577 | main_top_env = PL_top_env; |
1403 | |
2578 | |
1404 | while (main_top_env->je_prev) |
2579 | while (main_top_env->je_prev) |
1405 | main_top_env = main_top_env->je_prev; |
2580 | main_top_env = main_top_env->je_prev; |
1406 | |
2581 | |
|
|
2582 | { |
|
|
2583 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2584 | |
|
|
2585 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2586 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2587 | newSVpv ("coro_slf", 0), 0); |
|
|
2588 | |
|
|
2589 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2590 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2591 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2592 | } |
|
|
2593 | |
1407 | coroapi.ver = CORO_API_VERSION; |
2594 | coroapi.ver = CORO_API_VERSION; |
|
|
2595 | coroapi.rev = CORO_API_REVISION; |
|
|
2596 | |
1408 | coroapi.transfer = api_transfer; |
2597 | coroapi.transfer = api_transfer; |
|
|
2598 | |
|
|
2599 | coroapi.sv_state = SvSTATE_; |
|
|
2600 | coroapi.execute_slf = api_execute_slf; |
|
|
2601 | coroapi.prepare_nop = prepare_nop; |
|
|
2602 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2603 | coroapi.prepare_cede = prepare_cede; |
|
|
2604 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2605 | |
|
|
2606 | { |
|
|
2607 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2608 | |
|
|
2609 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2610 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2611 | |
|
|
2612 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2613 | } |
1409 | |
2614 | |
1410 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2615 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1411 | } |
2616 | } |
1412 | |
2617 | |
1413 | SV * |
2618 | SV * |
1414 | new (char *klass, ...) |
2619 | new (char *klass, ...) |
|
|
2620 | ALIAS: |
|
|
2621 | Coro::new = 1 |
1415 | CODE: |
2622 | CODE: |
1416 | { |
2623 | { |
1417 | struct coro *coro; |
2624 | struct coro *coro; |
|
|
2625 | MAGIC *mg; |
1418 | HV *hv; |
2626 | HV *hv; |
|
|
2627 | CV *cb; |
1419 | int i; |
2628 | int i; |
|
|
2629 | |
|
|
2630 | if (items > 1) |
|
|
2631 | { |
|
|
2632 | cb = coro_sv_2cv (ST (1)); |
|
|
2633 | |
|
|
2634 | if (CvISXSUB (cb)) |
|
|
2635 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2636 | |
|
|
2637 | if (!CvROOT (cb)) |
|
|
2638 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2639 | } |
1420 | |
2640 | |
1421 | Newz (0, coro, 1, struct coro); |
2641 | Newz (0, coro, 1, struct coro); |
1422 | coro->args = newAV (); |
2642 | coro->args = newAV (); |
1423 | coro->flags = CF_NEW; |
2643 | coro->flags = CF_NEW; |
1424 | |
2644 | |
1425 | if (coro_first) coro_first->prev = coro; |
2645 | if (coro_first) coro_first->prev = coro; |
1426 | coro->next = coro_first; |
2646 | coro->next = coro_first; |
1427 | coro_first = coro; |
2647 | coro_first = coro; |
1428 | |
2648 | |
1429 | coro->hv = hv = newHV (); |
2649 | coro->hv = hv = newHV (); |
1430 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2650 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2651 | mg->mg_flags |= MGf_DUP; |
1431 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2652 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1432 | |
2653 | |
|
|
2654 | if (items > 1) |
|
|
2655 | { |
|
|
2656 | av_extend (coro->args, items - 1 + ix); |
|
|
2657 | |
|
|
2658 | if (ix) |
|
|
2659 | { |
|
|
2660 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2661 | cb = coro_run_cv; |
|
|
2662 | } |
|
|
2663 | |
|
|
2664 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2665 | |
1433 | for (i = 1; i < items; i++) |
2666 | for (i = 2; i < items; i++) |
1434 | av_push (coro->args, newSVsv (ST (i))); |
2667 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2668 | } |
1435 | } |
2669 | } |
1436 | OUTPUT: |
2670 | OUTPUT: |
1437 | RETVAL |
2671 | RETVAL |
1438 | |
2672 | |
1439 | # these not obviously related functions are all rolled into the same xs |
|
|
1440 | # function to increase chances that they all will call transfer with the same |
|
|
1441 | # stack offset |
|
|
1442 | void |
2673 | void |
1443 | _set_stacklevel (...) |
2674 | transfer (...) |
1444 | ALIAS: |
2675 | PROTOTYPE: $$ |
1445 | Coro::State::transfer = 1 |
2676 | CODE: |
1446 | Coro::schedule = 2 |
2677 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1447 | Coro::cede = 3 |
|
|
1448 | Coro::cede_notself = 4 |
|
|
1449 | CODE: |
|
|
1450 | { |
|
|
1451 | struct transfer_args ta; |
|
|
1452 | |
|
|
1453 | switch (ix) |
|
|
1454 | { |
|
|
1455 | case 0: |
|
|
1456 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1457 | ta.next = 0; |
|
|
1458 | break; |
|
|
1459 | |
|
|
1460 | case 1: |
|
|
1461 | if (items != 2) |
|
|
1462 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1463 | |
|
|
1464 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1465 | break; |
|
|
1466 | |
|
|
1467 | case 2: |
|
|
1468 | prepare_schedule (aTHX_ &ta); |
|
|
1469 | break; |
|
|
1470 | |
|
|
1471 | case 3: |
|
|
1472 | prepare_cede (aTHX_ &ta); |
|
|
1473 | break; |
|
|
1474 | |
|
|
1475 | case 4: |
|
|
1476 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1477 | XSRETURN_EMPTY; |
|
|
1478 | |
|
|
1479 | break; |
|
|
1480 | } |
|
|
1481 | |
|
|
1482 | BARRIER; |
|
|
1483 | TRANSFER (ta); |
|
|
1484 | |
|
|
1485 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1486 | XSRETURN_YES; |
|
|
1487 | } |
|
|
1488 | |
2678 | |
1489 | bool |
2679 | bool |
1490 | _destroy (SV *coro_sv) |
2680 | _destroy (SV *coro_sv) |
1491 | CODE: |
2681 | CODE: |
1492 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2682 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1493 | OUTPUT: |
2683 | OUTPUT: |
1494 | RETVAL |
2684 | RETVAL |
1495 | |
2685 | |
1496 | void |
2686 | void |
1497 | _exit (code) |
2687 | _exit (int code) |
1498 | int code |
|
|
1499 | PROTOTYPE: $ |
2688 | PROTOTYPE: $ |
1500 | CODE: |
2689 | CODE: |
1501 | _exit (code); |
2690 | _exit (code); |
1502 | |
2691 | |
1503 | int |
2692 | int |
1504 | cctx_stacksize (int new_stacksize = 0) |
2693 | cctx_stacksize (int new_stacksize = 0) |
|
|
2694 | PROTOTYPE: ;$ |
1505 | CODE: |
2695 | CODE: |
1506 | RETVAL = coro_stacksize; |
2696 | RETVAL = cctx_stacksize; |
1507 | if (new_stacksize) |
2697 | if (new_stacksize) |
|
|
2698 | { |
1508 | coro_stacksize = new_stacksize; |
2699 | cctx_stacksize = new_stacksize; |
|
|
2700 | ++cctx_gen; |
|
|
2701 | } |
1509 | OUTPUT: |
2702 | OUTPUT: |
1510 | RETVAL |
2703 | RETVAL |
1511 | |
2704 | |
1512 | int |
2705 | int |
|
|
2706 | cctx_max_idle (int max_idle = 0) |
|
|
2707 | PROTOTYPE: ;$ |
|
|
2708 | CODE: |
|
|
2709 | RETVAL = cctx_max_idle; |
|
|
2710 | if (max_idle > 1) |
|
|
2711 | cctx_max_idle = max_idle; |
|
|
2712 | OUTPUT: |
|
|
2713 | RETVAL |
|
|
2714 | |
|
|
2715 | int |
1513 | cctx_count () |
2716 | cctx_count () |
|
|
2717 | PROTOTYPE: |
1514 | CODE: |
2718 | CODE: |
1515 | RETVAL = cctx_count; |
2719 | RETVAL = cctx_count; |
1516 | OUTPUT: |
2720 | OUTPUT: |
1517 | RETVAL |
2721 | RETVAL |
1518 | |
2722 | |
1519 | int |
2723 | int |
1520 | cctx_idle () |
2724 | cctx_idle () |
|
|
2725 | PROTOTYPE: |
1521 | CODE: |
2726 | CODE: |
1522 | RETVAL = cctx_idle; |
2727 | RETVAL = cctx_idle; |
1523 | OUTPUT: |
2728 | OUTPUT: |
1524 | RETVAL |
2729 | RETVAL |
1525 | |
2730 | |
1526 | void |
2731 | void |
1527 | list () |
2732 | list () |
|
|
2733 | PROTOTYPE: |
1528 | PPCODE: |
2734 | PPCODE: |
1529 | { |
2735 | { |
1530 | struct coro *coro; |
2736 | struct coro *coro; |
1531 | for (coro = coro_first; coro; coro = coro->next) |
2737 | for (coro = coro_first; coro; coro = coro->next) |
1532 | if (coro->hv) |
2738 | if (coro->hv) |
… | |
… | |
1537 | call (Coro::State coro, SV *coderef) |
2743 | call (Coro::State coro, SV *coderef) |
1538 | ALIAS: |
2744 | ALIAS: |
1539 | eval = 1 |
2745 | eval = 1 |
1540 | CODE: |
2746 | CODE: |
1541 | { |
2747 | { |
1542 | if (coro->mainstack) |
2748 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1543 | { |
2749 | { |
1544 | struct coro temp; |
2750 | struct coro temp; |
1545 | Zero (&temp, 1, struct coro); |
|
|
1546 | |
2751 | |
1547 | if (!(coro->flags & CF_RUNNING)) |
2752 | if (!(coro->flags & CF_RUNNING)) |
1548 | { |
2753 | { |
|
|
2754 | PUTBACK; |
1549 | save_perl (aTHX_ &temp); |
2755 | save_perl (aTHX_ &temp); |
1550 | load_perl (aTHX_ coro); |
2756 | load_perl (aTHX_ coro); |
1551 | } |
2757 | } |
1552 | |
2758 | |
1553 | { |
2759 | { |
1554 | dSP; |
2760 | dSP; |
1555 | ENTER; |
2761 | ENTER; |
1556 | SAVETMPS; |
2762 | SAVETMPS; |
|
|
2763 | PUTBACK; |
|
|
2764 | PUSHSTACK; |
1557 | PUSHMARK (SP); |
2765 | PUSHMARK (SP); |
1558 | PUTBACK; |
2766 | |
1559 | if (ix) |
2767 | if (ix) |
1560 | eval_sv (coderef, 0); |
2768 | eval_sv (coderef, 0); |
1561 | else |
2769 | else |
1562 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2770 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2771 | |
|
|
2772 | POPSTACK; |
1563 | SPAGAIN; |
2773 | SPAGAIN; |
1564 | FREETMPS; |
2774 | FREETMPS; |
1565 | LEAVE; |
2775 | LEAVE; |
1566 | PUTBACK; |
2776 | PUTBACK; |
1567 | } |
2777 | } |
1568 | |
2778 | |
1569 | if (!(coro->flags & CF_RUNNING)) |
2779 | if (!(coro->flags & CF_RUNNING)) |
1570 | { |
2780 | { |
1571 | save_perl (aTHX_ coro); |
2781 | save_perl (aTHX_ coro); |
1572 | load_perl (aTHX_ &temp); |
2782 | load_perl (aTHX_ &temp); |
|
|
2783 | SPAGAIN; |
1573 | } |
2784 | } |
1574 | } |
2785 | } |
1575 | } |
2786 | } |
1576 | |
2787 | |
1577 | SV * |
2788 | SV * |
… | |
… | |
1586 | RETVAL = boolSV (coro->flags & ix); |
2797 | RETVAL = boolSV (coro->flags & ix); |
1587 | OUTPUT: |
2798 | OUTPUT: |
1588 | RETVAL |
2799 | RETVAL |
1589 | |
2800 | |
1590 | void |
2801 | void |
|
|
2802 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2803 | PROTOTYPE: $;$ |
|
|
2804 | CODE: |
|
|
2805 | { |
|
|
2806 | struct coro *current = SvSTATE_current; |
|
|
2807 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
2808 | SvREFCNT_dec (*throwp); |
|
|
2809 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2810 | } |
|
|
2811 | |
|
|
2812 | void |
1591 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2813 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2814 | PROTOTYPE: $;$ |
|
|
2815 | C_ARGS: aTHX_ coro, flags |
1592 | |
2816 | |
1593 | SV * |
2817 | SV * |
1594 | has_stack (Coro::State coro) |
2818 | has_cctx (Coro::State coro) |
1595 | PROTOTYPE: $ |
2819 | PROTOTYPE: $ |
1596 | CODE: |
2820 | CODE: |
1597 | RETVAL = boolSV (!!coro->cctx); |
2821 | RETVAL = boolSV (!!coro->cctx); |
1598 | OUTPUT: |
2822 | OUTPUT: |
1599 | RETVAL |
2823 | RETVAL |
… | |
… | |
1604 | CODE: |
2828 | CODE: |
1605 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
2829 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1606 | OUTPUT: |
2830 | OUTPUT: |
1607 | RETVAL |
2831 | RETVAL |
1608 | |
2832 | |
1609 | IV |
2833 | UV |
1610 | rss (Coro::State coro) |
2834 | rss (Coro::State coro) |
1611 | PROTOTYPE: $ |
2835 | PROTOTYPE: $ |
1612 | ALIAS: |
2836 | ALIAS: |
1613 | usecount = 1 |
2837 | usecount = 1 |
1614 | CODE: |
2838 | CODE: |
… | |
… | |
1618 | case 1: RETVAL = coro->usecount; break; |
2842 | case 1: RETVAL = coro->usecount; break; |
1619 | } |
2843 | } |
1620 | OUTPUT: |
2844 | OUTPUT: |
1621 | RETVAL |
2845 | RETVAL |
1622 | |
2846 | |
|
|
2847 | void |
|
|
2848 | force_cctx () |
|
|
2849 | PROTOTYPE: |
|
|
2850 | CODE: |
|
|
2851 | SvSTATE_current->cctx->idle_sp = 0; |
|
|
2852 | |
|
|
2853 | void |
|
|
2854 | swap_defsv (Coro::State self) |
|
|
2855 | PROTOTYPE: $ |
|
|
2856 | ALIAS: |
|
|
2857 | swap_defav = 1 |
|
|
2858 | CODE: |
|
|
2859 | if (!self->slot) |
|
|
2860 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
2861 | else |
|
|
2862 | { |
|
|
2863 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2864 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2865 | |
|
|
2866 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2867 | } |
|
|
2868 | |
1623 | |
2869 | |
1624 | MODULE = Coro::State PACKAGE = Coro |
2870 | MODULE = Coro::State PACKAGE = Coro |
1625 | |
2871 | |
1626 | BOOT: |
2872 | BOOT: |
1627 | { |
2873 | { |
1628 | int i; |
2874 | int i; |
1629 | |
2875 | |
1630 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1631 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1632 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
2876 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
1633 | |
2877 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2878 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2879 | coro_run_cv = get_cv (aTHX_ "Coro::_terminate", GV_ADD); |
1634 | coro_current = get_sv ("Coro::current", FALSE); |
2880 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); |
1635 | SvREADONLY_on (coro_current); |
2881 | SvREADONLY_on (coro_current); |
1636 | |
2882 | |
1637 | coro_stash = gv_stashpv ("Coro", TRUE); |
2883 | coro_stash = gv_stashpv ("Coro", TRUE); |
1638 | |
2884 | |
1639 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2885 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1640 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2886 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1641 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2887 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1642 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2888 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
… | |
… | |
1645 | |
2891 | |
1646 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2892 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1647 | coro_ready[i] = newAV (); |
2893 | coro_ready[i] = newAV (); |
1648 | |
2894 | |
1649 | { |
2895 | { |
1650 | SV *sv = perl_get_sv("Coro::API", 1); |
2896 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1651 | |
2897 | |
1652 | coroapi.schedule = api_schedule; |
2898 | coroapi.schedule = api_schedule; |
1653 | coroapi.cede = api_cede; |
2899 | coroapi.cede = api_cede; |
1654 | coroapi.cede_notself = api_cede_notself; |
2900 | coroapi.cede_notself = api_cede_notself; |
1655 | coroapi.ready = api_ready; |
2901 | coroapi.ready = api_ready; |
1656 | coroapi.is_ready = api_is_ready; |
2902 | coroapi.is_ready = api_is_ready; |
1657 | coroapi.nready = &coro_nready; |
2903 | coroapi.nready = coro_nready; |
1658 | coroapi.current = coro_current; |
2904 | coroapi.current = coro_current; |
1659 | |
2905 | |
1660 | GCoroAPI = &coroapi; |
2906 | /*GCoroAPI = &coroapi;*/ |
1661 | sv_setiv (sv, (IV)&coroapi); |
2907 | sv_setiv (sv, (IV)&coroapi); |
1662 | SvREADONLY_on (sv); |
2908 | SvREADONLY_on (sv); |
1663 | } |
2909 | } |
1664 | } |
2910 | } |
|
|
2911 | |
|
|
2912 | void |
|
|
2913 | schedule (...) |
|
|
2914 | CODE: |
|
|
2915 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2916 | |
|
|
2917 | void |
|
|
2918 | cede (...) |
|
|
2919 | CODE: |
|
|
2920 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2921 | |
|
|
2922 | void |
|
|
2923 | cede_notself (...) |
|
|
2924 | CODE: |
|
|
2925 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1665 | |
2926 | |
1666 | void |
2927 | void |
1667 | _set_current (SV *current) |
2928 | _set_current (SV *current) |
1668 | PROTOTYPE: $ |
2929 | PROTOTYPE: $ |
1669 | CODE: |
2930 | CODE: |
1670 | SvREFCNT_dec (SvRV (coro_current)); |
2931 | SvREFCNT_dec (SvRV (coro_current)); |
1671 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2932 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2933 | |
|
|
2934 | void |
|
|
2935 | _set_readyhook (SV *hook) |
|
|
2936 | PROTOTYPE: $ |
|
|
2937 | CODE: |
|
|
2938 | SvREFCNT_dec (coro_readyhook); |
|
|
2939 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1672 | |
2940 | |
1673 | int |
2941 | int |
1674 | prio (Coro::State coro, int newprio = 0) |
2942 | prio (Coro::State coro, int newprio = 0) |
|
|
2943 | PROTOTYPE: $;$ |
1675 | ALIAS: |
2944 | ALIAS: |
1676 | nice = 1 |
2945 | nice = 1 |
1677 | CODE: |
2946 | CODE: |
1678 | { |
2947 | { |
1679 | RETVAL = coro->prio; |
2948 | RETVAL = coro->prio; |
… | |
… | |
1694 | |
2963 | |
1695 | SV * |
2964 | SV * |
1696 | ready (SV *self) |
2965 | ready (SV *self) |
1697 | PROTOTYPE: $ |
2966 | PROTOTYPE: $ |
1698 | CODE: |
2967 | CODE: |
1699 | RETVAL = boolSV (api_ready (self)); |
2968 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1700 | OUTPUT: |
2969 | OUTPUT: |
1701 | RETVAL |
2970 | RETVAL |
1702 | |
2971 | |
1703 | int |
2972 | int |
1704 | nready (...) |
2973 | nready (...) |
… | |
… | |
1711 | # for async_pool speedup |
2980 | # for async_pool speedup |
1712 | void |
2981 | void |
1713 | _pool_1 (SV *cb) |
2982 | _pool_1 (SV *cb) |
1714 | CODE: |
2983 | CODE: |
1715 | { |
2984 | { |
1716 | struct coro *coro = SvSTATE (coro_current); |
|
|
1717 | HV *hv = (HV *)SvRV (coro_current); |
2985 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2986 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1718 | AV *defav = GvAV (PL_defgv); |
2987 | AV *defav = GvAV (PL_defgv); |
1719 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2988 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1720 | AV *invoke_av; |
2989 | AV *invoke_av; |
1721 | int i, len; |
2990 | int i, len; |
1722 | |
2991 | |
1723 | if (!invoke) |
2992 | if (!invoke) |
|
|
2993 | { |
|
|
2994 | SV *old = PL_diehook; |
|
|
2995 | PL_diehook = 0; |
|
|
2996 | SvREFCNT_dec (old); |
1724 | croak ("\3terminate\2\n"); |
2997 | croak ("\3async_pool terminate\2\n"); |
|
|
2998 | } |
1725 | |
2999 | |
1726 | SvREFCNT_dec (coro->saved_deffh); |
3000 | SvREFCNT_dec (coro->saved_deffh); |
1727 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
3001 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
1728 | |
3002 | |
1729 | hv_store (hv, "desc", sizeof ("desc") - 1, |
3003 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1730 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
3004 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
1731 | |
3005 | |
1732 | invoke_av = (AV *)SvRV (invoke); |
3006 | invoke_av = (AV *)SvRV (invoke); |
… | |
… | |
1736 | |
3010 | |
1737 | if (len > 0) |
3011 | if (len > 0) |
1738 | { |
3012 | { |
1739 | av_fill (defav, len - 1); |
3013 | av_fill (defav, len - 1); |
1740 | for (i = 0; i < len; ++i) |
3014 | for (i = 0; i < len; ++i) |
1741 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
3015 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
1742 | } |
3016 | } |
1743 | |
|
|
1744 | SvREFCNT_dec (invoke); |
|
|
1745 | } |
3017 | } |
1746 | |
3018 | |
1747 | void |
3019 | void |
1748 | _pool_2 (SV *cb) |
3020 | _pool_2 (SV *cb) |
1749 | CODE: |
3021 | CODE: |
1750 | { |
3022 | { |
1751 | struct coro *coro = SvSTATE (coro_current); |
3023 | HV *hv = (HV *)SvRV (coro_current); |
|
|
3024 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1752 | |
3025 | |
1753 | sv_setsv (cb, &PL_sv_undef); |
3026 | sv_setsv (cb, &PL_sv_undef); |
1754 | |
3027 | |
1755 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
3028 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
1756 | coro->saved_deffh = 0; |
3029 | coro->saved_deffh = 0; |
1757 | |
3030 | |
1758 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
3031 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
1759 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
3032 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
3033 | { |
|
|
3034 | SV *old = PL_diehook; |
|
|
3035 | PL_diehook = 0; |
|
|
3036 | SvREFCNT_dec (old); |
1760 | croak ("\3terminate\2\n"); |
3037 | croak ("\3async_pool terminate\2\n"); |
|
|
3038 | } |
1761 | |
3039 | |
1762 | av_clear (GvAV (PL_defgv)); |
3040 | av_clear (GvAV (PL_defgv)); |
1763 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
3041 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1764 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
3042 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1765 | |
3043 | |
1766 | coro->prio = 0; |
3044 | coro->prio = 0; |
1767 | |
3045 | |
1768 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
3046 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
1769 | api_trace (coro_current, 0); |
3047 | api_trace (aTHX_ coro_current, 0); |
1770 | |
3048 | |
1771 | av_push (av_async_pool, newSVsv (coro_current)); |
3049 | av_push (av_async_pool, newSVsv (coro_current)); |
1772 | } |
3050 | } |
1773 | |
3051 | |
1774 | |
|
|
1775 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1776 | |
|
|
1777 | SV * |
3052 | SV * |
1778 | _get_state () |
3053 | rouse_cb () |
|
|
3054 | PROTOTYPE: |
1779 | CODE: |
3055 | CODE: |
1780 | { |
3056 | RETVAL = coro_new_rouse_cb (aTHX); |
1781 | struct io_state *data; |
|
|
1782 | |
|
|
1783 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1784 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1785 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1786 | SvPOK_only (RETVAL); |
|
|
1787 | |
|
|
1788 | data->errorno = errno; |
|
|
1789 | data->laststype = PL_laststype; |
|
|
1790 | data->laststatval = PL_laststatval; |
|
|
1791 | data->statcache = PL_statcache; |
|
|
1792 | } |
|
|
1793 | OUTPUT: |
3057 | OUTPUT: |
1794 | RETVAL |
3058 | RETVAL |
1795 | |
3059 | |
1796 | void |
3060 | void |
1797 | _set_state (char *data_) |
3061 | rouse_wait (...) |
1798 | PROTOTYPE: $ |
3062 | PROTOTYPE: ;$ |
|
|
3063 | PPCODE: |
|
|
3064 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3065 | |
|
|
3066 | |
|
|
3067 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3068 | |
|
|
3069 | BOOT: |
|
|
3070 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3071 | |
|
|
3072 | |
|
|
3073 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3074 | |
|
|
3075 | SV * |
|
|
3076 | new (SV *klass, SV *count = 0) |
1799 | CODE: |
3077 | CODE: |
1800 | { |
3078 | RETVAL = sv_bless ( |
1801 | struct io_state *data = (void *)data_; |
3079 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
|
|
3080 | GvSTASH (CvGV (cv)) |
|
|
3081 | ); |
|
|
3082 | OUTPUT: |
|
|
3083 | RETVAL |
1802 | |
3084 | |
1803 | errno = data->errorno; |
3085 | # helper for Coro::Channel |
1804 | PL_laststype = data->laststype; |
3086 | SV * |
1805 | PL_laststatval = data->laststatval; |
3087 | _alloc (int count) |
1806 | PL_statcache = data->statcache; |
3088 | CODE: |
1807 | } |
3089 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3090 | OUTPUT: |
|
|
3091 | RETVAL |
1808 | |
3092 | |
|
|
3093 | SV * |
|
|
3094 | count (SV *self) |
|
|
3095 | CODE: |
|
|
3096 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3097 | OUTPUT: |
|
|
3098 | RETVAL |
|
|
3099 | |
|
|
3100 | void |
|
|
3101 | up (SV *self, int adjust = 1) |
|
|
3102 | ALIAS: |
|
|
3103 | adjust = 1 |
|
|
3104 | CODE: |
|
|
3105 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3106 | |
|
|
3107 | void |
|
|
3108 | down (...) |
|
|
3109 | CODE: |
|
|
3110 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3111 | |
|
|
3112 | void |
|
|
3113 | wait (...) |
|
|
3114 | CODE: |
|
|
3115 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3116 | |
|
|
3117 | void |
|
|
3118 | try (SV *self) |
|
|
3119 | PPCODE: |
|
|
3120 | { |
|
|
3121 | AV *av = (AV *)SvRV (self); |
|
|
3122 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3123 | IV count = SvIVX (count_sv); |
|
|
3124 | |
|
|
3125 | if (count > 0) |
|
|
3126 | { |
|
|
3127 | --count; |
|
|
3128 | SvIVX (count_sv) = count; |
|
|
3129 | XSRETURN_YES; |
|
|
3130 | } |
|
|
3131 | else |
|
|
3132 | XSRETURN_NO; |
|
|
3133 | } |
|
|
3134 | |
|
|
3135 | void |
|
|
3136 | waiters (SV *self) |
|
|
3137 | PPCODE: |
|
|
3138 | { |
|
|
3139 | AV *av = (AV *)SvRV (self); |
|
|
3140 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3141 | |
|
|
3142 | if (GIMME_V == G_SCALAR) |
|
|
3143 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3144 | else |
|
|
3145 | { |
|
|
3146 | int i; |
|
|
3147 | EXTEND (SP, wcount); |
|
|
3148 | for (i = 1; i <= wcount; ++i) |
|
|
3149 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3150 | } |
|
|
3151 | } |
|
|
3152 | |
|
|
3153 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3154 | |
|
|
3155 | SV * |
|
|
3156 | new (SV *klass) |
|
|
3157 | CODE: |
|
|
3158 | RETVAL = sv_bless ( |
|
|
3159 | coro_waitarray_new (aTHX_ 0), |
|
|
3160 | GvSTASH (CvGV (cv)) |
|
|
3161 | ); |
|
|
3162 | OUTPUT: |
|
|
3163 | RETVAL |
|
|
3164 | |
|
|
3165 | void |
|
|
3166 | wait (...) |
|
|
3167 | CODE: |
|
|
3168 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3169 | |
|
|
3170 | void |
|
|
3171 | broadcast (SV *self) |
|
|
3172 | CODE: |
|
|
3173 | { |
|
|
3174 | AV *av = (AV *)SvRV (self); |
|
|
3175 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3176 | } |
|
|
3177 | |
|
|
3178 | void |
|
|
3179 | send (SV *self) |
|
|
3180 | CODE: |
|
|
3181 | { |
|
|
3182 | AV *av = (AV *)SvRV (self); |
|
|
3183 | |
|
|
3184 | if (AvFILLp (av)) |
|
|
3185 | coro_signal_wake (aTHX_ av, 1); |
|
|
3186 | else |
|
|
3187 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3188 | } |
|
|
3189 | |
|
|
3190 | IV |
|
|
3191 | awaited (SV *self) |
|
|
3192 | CODE: |
|
|
3193 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3194 | OUTPUT: |
|
|
3195 | RETVAL |
|
|
3196 | |
|
|
3197 | |
|
|
3198 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3199 | |
|
|
3200 | BOOT: |
|
|
3201 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3202 | |
|
|
3203 | void |
|
|
3204 | _schedule (...) |
|
|
3205 | CODE: |
|
|
3206 | { |
|
|
3207 | static int incede; |
|
|
3208 | |
|
|
3209 | api_cede_notself (aTHX); |
|
|
3210 | |
|
|
3211 | ++incede; |
|
|
3212 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3213 | ; |
|
|
3214 | |
|
|
3215 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3216 | if (coro_nready >= incede) |
|
|
3217 | { |
|
|
3218 | PUSHMARK (SP); |
|
|
3219 | PUTBACK; |
|
|
3220 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3221 | } |
|
|
3222 | |
|
|
3223 | --incede; |
|
|
3224 | } |
|
|
3225 | |
|
|
3226 | |
|
|
3227 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3228 | |
|
|
3229 | void |
|
|
3230 | _register (char *target, char *proto, SV *req) |
|
|
3231 | CODE: |
|
|
3232 | { |
|
|
3233 | CV *req_cv = coro_sv_2cv (req); |
|
|
3234 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3235 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3236 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3237 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3238 | } |
|
|
3239 | |