1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
|
|
2 | |
|
|
3 | #define PERL_NO_GET_CONTEXT |
|
|
4 | #define PERL_EXT |
2 | |
5 | |
3 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
4 | #include "perl.h" |
7 | #include "perl.h" |
5 | #include "XSUB.h" |
8 | #include "XSUB.h" |
6 | |
9 | |
7 | #include "patchlevel.h" |
10 | #include "patchlevel.h" |
|
|
11 | |
|
|
12 | #include <stdio.h> |
|
|
13 | #include <errno.h> |
|
|
14 | #include <assert.h> |
|
|
15 | |
|
|
16 | #ifdef HAVE_MMAP |
|
|
17 | # include <unistd.h> |
|
|
18 | # include <sys/mman.h> |
|
|
19 | # ifndef MAP_ANONYMOUS |
|
|
20 | # ifdef MAP_ANON |
|
|
21 | # define MAP_ANONYMOUS MAP_ANON |
|
|
22 | # else |
|
|
23 | # undef HAVE_MMAP |
|
|
24 | # endif |
|
|
25 | # endif |
|
|
26 | # include <limits.h> |
|
|
27 | # ifndef PAGESIZE |
|
|
28 | # define PAGESIZE pagesize |
|
|
29 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
|
|
30 | static long pagesize; |
|
|
31 | # else |
|
|
32 | # define BOOT_PAGESIZE (void)0 |
|
|
33 | # endif |
|
|
34 | #else |
|
|
35 | # define PAGESIZE 0 |
|
|
36 | # define BOOT_PAGESIZE (void)0 |
|
|
37 | #endif |
|
|
38 | |
|
|
39 | #if CORO_USE_VALGRIND |
|
|
40 | # include <valgrind/valgrind.h> |
|
|
41 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
|
|
42 | #else |
|
|
43 | # define REGISTER_STACK(cctx,start,end) |
|
|
44 | #endif |
|
|
45 | |
|
|
46 | /* the maximum number of idle cctx that will be pooled */ |
|
|
47 | #define MAX_IDLE_CCTX 8 |
8 | |
48 | |
9 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
49 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
10 | (PERL_REVISION > (a) \ |
50 | (PERL_REVISION > (a) \ |
11 | || (PERL_REVISION == (a) \ |
51 | || (PERL_REVISION == (a) \ |
12 | && (PERL_VERSION > (b) \ |
52 | && (PERL_VERSION > (b) \ |
… | |
… | |
31 | # ifndef IS_PADCONST |
71 | # ifndef IS_PADCONST |
32 | # define IS_PADCONST(v) 0 |
72 | # define IS_PADCONST(v) 0 |
33 | # endif |
73 | # endif |
34 | #endif |
74 | #endif |
35 | |
75 | |
36 | #include <stdio.h> |
76 | /* 5.8.7 */ |
37 | #include <errno.h> |
77 | #ifndef SvRV_set |
|
|
78 | # define SvRV_set(s,v) SvRV(s) = (v) |
|
|
79 | #endif |
|
|
80 | |
|
|
81 | /* 5.8.8 */ |
|
|
82 | #ifndef GV_NOTQUAL |
|
|
83 | # define GV_NOTQUAL 0 |
|
|
84 | #endif |
|
|
85 | #ifndef newSV |
|
|
86 | # define newSV(l) NEWSV(0,l) |
|
|
87 | #endif |
38 | |
88 | |
39 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
89 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
40 | # undef STACKGUARD |
90 | # undef CORO_STACKGUARD |
41 | #endif |
|
|
42 | |
|
|
43 | #ifndef STACKGUARD |
|
|
44 | # define STACKGUARD 0 |
|
|
45 | #endif |
|
|
46 | |
|
|
47 | #ifdef HAVE_MMAP |
|
|
48 | # include <unistd.h> |
|
|
49 | # include <sys/mman.h> |
|
|
50 | # ifndef MAP_ANONYMOUS |
|
|
51 | # ifdef MAP_ANON |
|
|
52 | # define MAP_ANONYMOUS MAP_ANON |
|
|
53 | # else |
|
|
54 | # undef HAVE_MMAP |
|
|
55 | # endif |
|
|
56 | # endif |
91 | #endif |
57 | # include <limits.h> |
92 | |
58 | # ifndef PAGESIZE |
93 | #ifndef CORO_STACKGUARD |
59 | # define PAGESIZE pagesize |
94 | # define CORO_STACKGUARD 0 |
60 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
|
|
61 | static long pagesize; |
|
|
62 | # else |
|
|
63 | # define BOOT_PAGESIZE |
|
|
64 | # endif |
95 | #endif |
65 | #endif |
|
|
66 | |
96 | |
67 | /* The next macro should declare a variable stacklevel that contains and approximation |
97 | /* prefer perl internal functions over our own? */ |
68 | * to the current C stack pointer. Its property is that it changes with each call |
98 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
69 | * and should be unique. */ |
99 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
|
|
100 | #endif |
|
|
101 | |
|
|
102 | /* The next macros try to return the current stack pointer, in an as |
|
|
103 | * portable way as possible. */ |
70 | #define dSTACKLEVEL int stacklevel |
104 | #define dSTACKLEVEL volatile char stacklevel |
71 | #define STACKLEVEL ((void *)&stacklevel) |
105 | #define STACKLEVEL ((void *)&stacklevel) |
72 | |
106 | |
73 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
107 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
74 | |
108 | |
75 | #if __GNUC__ >= 3 |
109 | #if __GNUC__ >= 3 |
76 | # define attribute(x) __attribute__(x) |
110 | # define attribute(x) __attribute__(x) |
|
|
111 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
|
|
112 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
77 | #else |
113 | #else |
78 | # define attribute(x) |
114 | # define attribute(x) |
|
|
115 | # define BARRIER |
|
|
116 | # define expect(expr,value) (expr) |
79 | #endif |
117 | #endif |
|
|
118 | |
|
|
119 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
120 | #define expect_true(expr) expect ((expr) != 0, 1) |
80 | |
121 | |
81 | #define NOINLINE attribute ((noinline)) |
122 | #define NOINLINE attribute ((noinline)) |
82 | |
123 | |
83 | #include "CoroAPI.h" |
124 | #include "CoroAPI.h" |
84 | |
|
|
85 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
|
|
86 | |
125 | |
87 | #ifdef USE_ITHREADS |
126 | #ifdef USE_ITHREADS |
88 | static perl_mutex coro_mutex; |
127 | static perl_mutex coro_mutex; |
89 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
128 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
90 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
129 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
91 | #else |
130 | #else |
92 | # define LOCK (void)0 |
131 | # define LOCK (void)0 |
93 | # define UNLOCK (void)0 |
132 | # define UNLOCK (void)0 |
94 | #endif |
133 | #endif |
95 | |
134 | |
|
|
135 | #define strpair(const) const, sizeof (const) - 1 |
|
|
136 | |
|
|
137 | /* helper storage struct for Coro::AIO */ |
|
|
138 | struct io_state |
|
|
139 | { |
|
|
140 | int errorno; |
|
|
141 | I32 laststype; |
|
|
142 | int laststatval; |
|
|
143 | Stat_t statcache; |
|
|
144 | }; |
|
|
145 | |
|
|
146 | static size_t coro_stacksize = CORO_STACKSIZE; |
96 | static struct CoroAPI coroapi; |
147 | static struct CoroAPI coroapi; |
97 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
148 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
|
|
149 | static JMPENV *main_top_env; |
98 | static HV *coro_state_stash, *coro_stash; |
150 | static HV *coro_state_stash, *coro_stash; |
99 | static SV *coro_mortal; /* will be freed after next transfer */ |
151 | static SV *coro_mortal; /* will be freed after next transfer */ |
100 | |
152 | |
|
|
153 | static GV *irsgv; /* $/ */ |
|
|
154 | static GV *stdoutgv; /* *STDOUT */ |
|
|
155 | |
|
|
156 | static HV *hv_sig; /* %SIG */ |
|
|
157 | static SV *sv_diehook; |
|
|
158 | static SV *sv_warnhook; |
|
|
159 | |
|
|
160 | /* async_pool helper stuff */ |
|
|
161 | static SV *sv_pool_rss; |
|
|
162 | static SV *sv_pool_size; |
|
|
163 | static AV *av_async_pool; |
|
|
164 | |
|
|
165 | static struct coro_cctx *cctx_first; |
|
|
166 | static int cctx_count, cctx_idle; |
|
|
167 | |
|
|
168 | enum { |
|
|
169 | CC_MAPPED = 0x01, |
|
|
170 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
|
|
171 | CC_TRACE = 0x04, |
|
|
172 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
|
|
173 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
|
|
174 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
|
|
175 | }; |
|
|
176 | |
101 | /* this is a structure representing a c-level coroutine */ |
177 | /* this is a structure representing a c-level coroutine */ |
102 | typedef struct coro_stack { |
178 | typedef struct coro_cctx { |
103 | struct coro_stack *next; |
179 | struct coro_cctx *next; |
104 | |
180 | |
105 | /* the stack */ |
181 | /* the stack */ |
106 | void *sptr; |
182 | void *sptr; |
107 | long ssize; /* positive == mmap, otherwise malloc */ |
183 | size_t ssize; |
108 | |
184 | |
109 | /* cpu state */ |
185 | /* cpu state */ |
110 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
186 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
|
|
187 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
111 | JMPENV *top_env; |
188 | JMPENV *top_env; |
112 | coro_context cctx; |
189 | coro_context cctx; |
113 | } coro_stack; |
190 | |
|
|
191 | #if CORO_USE_VALGRIND |
|
|
192 | int valgrind_id; |
|
|
193 | #endif |
|
|
194 | unsigned char flags; |
|
|
195 | } coro_cctx; |
|
|
196 | |
|
|
197 | enum { |
|
|
198 | CF_RUNNING = 0x0001, /* coroutine is running */ |
|
|
199 | CF_READY = 0x0002, /* coroutine is ready */ |
|
|
200 | CF_NEW = 0x0004, /* has never been switched to */ |
|
|
201 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
|
|
202 | }; |
|
|
203 | |
|
|
204 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
|
|
205 | typedef struct { |
|
|
206 | SV *defsv; |
|
|
207 | AV *defav; |
|
|
208 | SV *errsv; |
|
|
209 | SV *irsgv; |
|
|
210 | #define VAR(name,type) type name; |
|
|
211 | # include "state.h" |
|
|
212 | #undef VAR |
|
|
213 | } perl_slots; |
|
|
214 | |
|
|
215 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
114 | |
216 | |
115 | /* this is a structure representing a perl-level coroutine */ |
217 | /* this is a structure representing a perl-level coroutine */ |
116 | struct coro { |
218 | struct coro { |
117 | /* the c coroutine allocated to this perl coroutine, if any */ |
219 | /* the c coroutine allocated to this perl coroutine, if any */ |
118 | coro_stack *stack; |
220 | coro_cctx *cctx; |
|
|
221 | |
|
|
222 | /* process data */ |
|
|
223 | AV *mainstack; |
|
|
224 | perl_slots *slot; /* basically the saved sp */ |
119 | |
225 | |
120 | /* data associated with this coroutine (initial args) */ |
226 | /* data associated with this coroutine (initial args) */ |
121 | AV *args; |
227 | AV *args; |
122 | int refcnt; |
228 | int refcnt; |
|
|
229 | int flags; /* CF_ flags */ |
123 | |
230 | |
124 | /* optionally saved, might be zero */ |
231 | /* statistics */ |
125 | AV *defav; |
232 | int usecount; /* number of transfers to this coro */ |
126 | SV *defsv; |
|
|
127 | SV *errsv; |
|
|
128 | |
|
|
129 | /* saved global state not related to stacks */ |
|
|
130 | U8 dowarn; |
|
|
131 | I32 in_eval; |
|
|
132 | |
|
|
133 | /* the stacks and related info (callchain etc..) */ |
|
|
134 | PERL_SI *curstackinfo; |
|
|
135 | AV *curstack; |
|
|
136 | AV *mainstack; |
|
|
137 | SV **stack_sp; |
|
|
138 | OP *op; |
|
|
139 | SV **curpad; |
|
|
140 | AV *comppad; |
|
|
141 | CV *compcv; |
|
|
142 | SV **stack_base; |
|
|
143 | SV **stack_max; |
|
|
144 | SV **tmps_stack; |
|
|
145 | I32 tmps_floor; |
|
|
146 | I32 tmps_ix; |
|
|
147 | I32 tmps_max; |
|
|
148 | I32 *markstack; |
|
|
149 | I32 *markstack_ptr; |
|
|
150 | I32 *markstack_max; |
|
|
151 | I32 *scopestack; |
|
|
152 | I32 scopestack_ix; |
|
|
153 | I32 scopestack_max; |
|
|
154 | ANY *savestack; |
|
|
155 | I32 savestack_ix; |
|
|
156 | I32 savestack_max; |
|
|
157 | OP **retstack; |
|
|
158 | I32 retstack_ix; |
|
|
159 | I32 retstack_max; |
|
|
160 | PMOP *curpm; |
|
|
161 | COP *curcop; |
|
|
162 | |
233 | |
163 | /* coro process data */ |
234 | /* coro process data */ |
164 | int prio; |
235 | int prio; |
|
|
236 | SV *throw; |
|
|
237 | |
|
|
238 | /* async_pool */ |
|
|
239 | SV *saved_deffh; |
|
|
240 | |
|
|
241 | /* linked list */ |
|
|
242 | struct coro *next, *prev; |
|
|
243 | HV *hv; /* the perl hash associated with this coro, if any */ |
165 | }; |
244 | }; |
166 | |
245 | |
167 | typedef struct coro *Coro__State; |
246 | typedef struct coro *Coro__State; |
168 | typedef struct coro *Coro__State_or_hashref; |
247 | typedef struct coro *Coro__State_or_hashref; |
169 | |
248 | |
|
|
249 | /** Coro ********************************************************************/ |
|
|
250 | |
|
|
251 | #define PRIO_MAX 3 |
|
|
252 | #define PRIO_HIGH 1 |
|
|
253 | #define PRIO_NORMAL 0 |
|
|
254 | #define PRIO_LOW -1 |
|
|
255 | #define PRIO_IDLE -3 |
|
|
256 | #define PRIO_MIN -4 |
|
|
257 | |
|
|
258 | /* for Coro.pm */ |
|
|
259 | static SV *coro_current; |
|
|
260 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
261 | static int coro_nready; |
|
|
262 | static struct coro *coro_first; |
|
|
263 | |
|
|
264 | /** lowlevel stuff **********************************************************/ |
|
|
265 | |
|
|
266 | static SV * |
|
|
267 | coro_get_sv (const char *name, int create) |
|
|
268 | { |
|
|
269 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
270 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
271 | get_sv (name, create); |
|
|
272 | #endif |
|
|
273 | return get_sv (name, create); |
|
|
274 | } |
|
|
275 | |
170 | static AV * |
276 | static AV * |
|
|
277 | coro_get_av (const char *name, int create) |
|
|
278 | { |
|
|
279 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
280 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
281 | get_av (name, create); |
|
|
282 | #endif |
|
|
283 | return get_av (name, create); |
|
|
284 | } |
|
|
285 | |
|
|
286 | static HV * |
|
|
287 | coro_get_hv (const char *name, int create) |
|
|
288 | { |
|
|
289 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
290 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
291 | get_hv (name, create); |
|
|
292 | #endif |
|
|
293 | return get_hv (name, create); |
|
|
294 | } |
|
|
295 | |
|
|
296 | static AV * |
171 | coro_clone_padlist (CV *cv) |
297 | coro_clone_padlist (pTHX_ CV *cv) |
172 | { |
298 | { |
173 | AV *padlist = CvPADLIST (cv); |
299 | AV *padlist = CvPADLIST (cv); |
174 | AV *newpadlist, *newpad; |
300 | AV *newpadlist, *newpad; |
175 | |
301 | |
176 | newpadlist = newAV (); |
302 | newpadlist = newAV (); |
… | |
… | |
188 | |
314 | |
189 | return newpadlist; |
315 | return newpadlist; |
190 | } |
316 | } |
191 | |
317 | |
192 | static void |
318 | static void |
193 | free_padlist (AV *padlist) |
319 | free_padlist (pTHX_ AV *padlist) |
194 | { |
320 | { |
195 | /* may be during global destruction */ |
321 | /* may be during global destruction */ |
196 | if (SvREFCNT (padlist)) |
322 | if (SvREFCNT (padlist)) |
197 | { |
323 | { |
198 | I32 i = AvFILLp (padlist); |
324 | I32 i = AvFILLp (padlist); |
… | |
… | |
219 | AV *padlist; |
345 | AV *padlist; |
220 | AV *av = (AV *)mg->mg_obj; |
346 | AV *av = (AV *)mg->mg_obj; |
221 | |
347 | |
222 | /* casting is fun. */ |
348 | /* casting is fun. */ |
223 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
349 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
224 | free_padlist (padlist); |
350 | free_padlist (aTHX_ padlist); |
225 | |
351 | |
226 | SvREFCNT_dec (av); |
352 | SvREFCNT_dec (av); |
227 | |
353 | |
228 | return 0; |
354 | return 0; |
229 | } |
355 | } |
230 | |
356 | |
231 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
357 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
232 | |
358 | |
233 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
359 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
234 | |
360 | |
|
|
361 | #define CORO_MAGIC(cv) \ |
|
|
362 | SvMAGIC (cv) \ |
|
|
363 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
364 | ? SvMAGIC (cv) \ |
|
|
365 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
366 | : 0 |
|
|
367 | |
|
|
368 | static struct coro * |
|
|
369 | SvSTATE_ (pTHX_ SV *coro) |
|
|
370 | { |
|
|
371 | HV *stash; |
|
|
372 | MAGIC *mg; |
|
|
373 | |
|
|
374 | if (SvROK (coro)) |
|
|
375 | coro = SvRV (coro); |
|
|
376 | |
|
|
377 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
378 | croak ("Coro::State object required"); |
|
|
379 | |
|
|
380 | stash = SvSTASH (coro); |
|
|
381 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
382 | { |
|
|
383 | /* very slow, but rare, check */ |
|
|
384 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
385 | croak ("Coro::State object required"); |
|
|
386 | } |
|
|
387 | |
|
|
388 | mg = CORO_MAGIC (coro); |
|
|
389 | return (struct coro *)mg->mg_ptr; |
|
|
390 | } |
|
|
391 | |
|
|
392 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
393 | |
235 | /* the next two functions merely cache the padlists */ |
394 | /* the next two functions merely cache the padlists */ |
236 | static void |
395 | static void |
237 | get_padlist (CV *cv) |
396 | get_padlist (pTHX_ CV *cv) |
238 | { |
397 | { |
239 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
398 | MAGIC *mg = CORO_MAGIC (cv); |
|
|
399 | AV *av; |
240 | |
400 | |
241 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
401 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
242 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
402 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
243 | else |
403 | else |
244 | { |
404 | { |
245 | #if 0 |
405 | #if CORO_PREFER_PERL_FUNCTIONS |
246 | /* this is probably cleaner, but also slower? */ |
406 | /* this is probably cleaner, but also slower? */ |
247 | CV *cp = Perl_cv_clone (cv); |
407 | CV *cp = Perl_cv_clone (cv); |
248 | CvPADLIST (cv) = CvPADLIST (cp); |
408 | CvPADLIST (cv) = CvPADLIST (cp); |
249 | CvPADLIST (cp) = 0; |
409 | CvPADLIST (cp) = 0; |
250 | SvREFCNT_dec (cp); |
410 | SvREFCNT_dec (cp); |
251 | #else |
411 | #else |
252 | CvPADLIST (cv) = coro_clone_padlist (cv); |
412 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
253 | #endif |
413 | #endif |
254 | } |
414 | } |
255 | } |
415 | } |
256 | |
416 | |
257 | static void |
417 | static void |
258 | put_padlist (CV *cv) |
418 | put_padlist (pTHX_ CV *cv) |
259 | { |
419 | { |
260 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
420 | MAGIC *mg = CORO_MAGIC (cv); |
|
|
421 | AV *av; |
261 | |
422 | |
262 | if (!mg) |
423 | if (expect_false (!mg)) |
263 | { |
424 | { |
264 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
425 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
265 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
426 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
266 | mg->mg_virtual = &vtbl_coro; |
427 | mg->mg_virtual = &vtbl_coro; |
267 | mg->mg_obj = (SV *)newAV (); |
428 | mg->mg_obj = (SV *)newAV (); |
268 | } |
429 | } |
269 | |
430 | |
270 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
431 | av = (AV *)mg->mg_obj; |
271 | } |
|
|
272 | |
432 | |
273 | #define SB do { |
433 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
274 | #define SE } while (0) |
434 | av_extend (av, AvMAX (av) + 1); |
275 | |
435 | |
276 | #define LOAD(state) load_state((state)); |
436 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
277 | #define SAVE(state,flags) save_state((state),(flags)); |
437 | } |
278 | |
438 | |
279 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
439 | /** load & save, init *******************************************************/ |
280 | |
440 | |
281 | static void |
441 | static void |
282 | load_state(Coro__State c) |
442 | load_perl (pTHX_ Coro__State c) |
283 | { |
443 | { |
284 | PL_dowarn = c->dowarn; |
444 | perl_slots *slot = c->slot; |
285 | PL_in_eval = c->in_eval; |
445 | c->slot = 0; |
286 | |
446 | |
287 | PL_curstackinfo = c->curstackinfo; |
|
|
288 | PL_curstack = c->curstack; |
|
|
289 | PL_mainstack = c->mainstack; |
447 | PL_mainstack = c->mainstack; |
290 | PL_stack_sp = c->stack_sp; |
|
|
291 | PL_op = c->op; |
|
|
292 | PL_curpad = c->curpad; |
|
|
293 | PL_comppad = c->comppad; |
|
|
294 | PL_compcv = c->compcv; |
|
|
295 | PL_stack_base = c->stack_base; |
|
|
296 | PL_stack_max = c->stack_max; |
|
|
297 | PL_tmps_stack = c->tmps_stack; |
|
|
298 | PL_tmps_floor = c->tmps_floor; |
|
|
299 | PL_tmps_ix = c->tmps_ix; |
|
|
300 | PL_tmps_max = c->tmps_max; |
|
|
301 | PL_markstack = c->markstack; |
|
|
302 | PL_markstack_ptr = c->markstack_ptr; |
|
|
303 | PL_markstack_max = c->markstack_max; |
|
|
304 | PL_scopestack = c->scopestack; |
|
|
305 | PL_scopestack_ix = c->scopestack_ix; |
|
|
306 | PL_scopestack_max = c->scopestack_max; |
|
|
307 | PL_savestack = c->savestack; |
|
|
308 | PL_savestack_ix = c->savestack_ix; |
|
|
309 | PL_savestack_max = c->savestack_max; |
|
|
310 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
311 | PL_retstack = c->retstack; |
|
|
312 | PL_retstack_ix = c->retstack_ix; |
|
|
313 | PL_retstack_max = c->retstack_max; |
|
|
314 | #endif |
|
|
315 | PL_curpm = c->curpm; |
|
|
316 | PL_curcop = c->curcop; |
|
|
317 | |
448 | |
318 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
449 | GvSV (PL_defgv) = slot->defsv; |
319 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
450 | GvAV (PL_defgv) = slot->defav; |
320 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
451 | GvSV (PL_errgv) = slot->errsv; |
|
|
452 | GvSV (irsgv) = slot->irsgv; |
|
|
453 | |
|
|
454 | #define VAR(name,type) PL_ ## name = slot->name; |
|
|
455 | # include "state.h" |
|
|
456 | #undef VAR |
|
|
457 | |
|
|
458 | /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/ |
|
|
459 | /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/ |
321 | |
460 | |
322 | { |
461 | { |
323 | dSP; |
462 | dSP; |
|
|
463 | |
324 | CV *cv; |
464 | CV *cv; |
325 | |
465 | |
326 | /* now do the ugly restore mess */ |
466 | /* now do the ugly restore mess */ |
327 | while ((cv = (CV *)POPs)) |
467 | while (expect_true (cv = (CV *)POPs)) |
328 | { |
468 | { |
329 | AV *padlist = (AV *)POPs; |
|
|
330 | |
|
|
331 | if (padlist) |
|
|
332 | { |
|
|
333 | put_padlist (cv); /* mark this padlist as available */ |
469 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
334 | CvPADLIST(cv) = padlist; |
470 | CvDEPTH (cv) = PTR2IV (POPs); |
335 | } |
471 | CvPADLIST (cv) = (AV *)POPs; |
336 | |
|
|
337 | ++CvDEPTH(cv); |
|
|
338 | } |
472 | } |
339 | |
473 | |
340 | PUTBACK; |
474 | PUTBACK; |
341 | } |
475 | } |
342 | } |
476 | } |
343 | |
477 | |
344 | static void |
478 | static void |
345 | save_state(Coro__State c, int flags) |
479 | save_perl (pTHX_ Coro__State c) |
346 | { |
480 | { |
347 | { |
481 | { |
348 | dSP; |
482 | dSP; |
349 | I32 cxix = cxstack_ix; |
483 | I32 cxix = cxstack_ix; |
350 | PERL_CONTEXT *ccstk = cxstack; |
484 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
353 | /* |
487 | /* |
354 | * the worst thing you can imagine happens first - we have to save |
488 | * the worst thing you can imagine happens first - we have to save |
355 | * (and reinitialize) all cv's in the whole callchain :( |
489 | * (and reinitialize) all cv's in the whole callchain :( |
356 | */ |
490 | */ |
357 | |
491 | |
358 | PUSHs (Nullsv); |
492 | XPUSHs (Nullsv); |
359 | /* this loop was inspired by pp_caller */ |
493 | /* this loop was inspired by pp_caller */ |
360 | for (;;) |
494 | for (;;) |
361 | { |
495 | { |
362 | while (cxix >= 0) |
496 | while (expect_true (cxix >= 0)) |
363 | { |
497 | { |
364 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
498 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
365 | |
499 | |
366 | if (CxTYPE(cx) == CXt_SUB) |
500 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
367 | { |
501 | { |
368 | CV *cv = cx->blk_sub.cv; |
502 | CV *cv = cx->blk_sub.cv; |
|
|
503 | |
369 | if (CvDEPTH(cv)) |
504 | if (expect_true (CvDEPTH (cv))) |
370 | { |
505 | { |
371 | EXTEND (SP, CvDEPTH(cv)*2); |
506 | EXTEND (SP, 3); |
372 | |
|
|
373 | while (--CvDEPTH(cv)) |
|
|
374 | { |
|
|
375 | /* this tells the restore code to increment CvDEPTH */ |
|
|
376 | PUSHs (Nullsv); |
|
|
377 | PUSHs ((SV *)cv); |
|
|
378 | } |
|
|
379 | |
|
|
380 | PUSHs ((SV *)CvPADLIST(cv)); |
507 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
508 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
381 | PUSHs ((SV *)cv); |
509 | PUSHs ((SV *)cv); |
382 | |
510 | |
|
|
511 | CvDEPTH (cv) = 0; |
383 | get_padlist (cv); |
512 | get_padlist (aTHX_ cv); |
384 | } |
513 | } |
385 | } |
514 | } |
386 | #ifdef CXt_FORMAT |
|
|
387 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
388 | { |
|
|
389 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
390 | /* my bold guess is as a simple, plain sub... */ |
|
|
391 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
392 | } |
|
|
393 | #endif |
|
|
394 | } |
515 | } |
395 | |
516 | |
396 | if (top_si->si_type == PERLSI_MAIN) |
517 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
397 | break; |
518 | break; |
398 | |
519 | |
399 | top_si = top_si->si_prev; |
520 | top_si = top_si->si_prev; |
400 | ccstk = top_si->si_cxstack; |
521 | ccstk = top_si->si_cxstack; |
401 | cxix = top_si->si_cxix; |
522 | cxix = top_si->si_cxix; |
402 | } |
523 | } |
403 | |
524 | |
404 | PUTBACK; |
525 | PUTBACK; |
405 | } |
526 | } |
406 | |
527 | |
407 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
528 | /* allocate some space on the context stack for our purposes */ |
408 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
529 | /* we manually unroll here, as usually 2 slots is enough */ |
409 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
530 | if (SLOT_COUNT >= 1) CXINC; |
|
|
531 | if (SLOT_COUNT >= 2) CXINC; |
|
|
532 | if (SLOT_COUNT >= 3) CXINC; |
|
|
533 | { |
|
|
534 | int i; |
|
|
535 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
536 | CXINC; |
|
|
537 | } |
|
|
538 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
410 | |
539 | |
411 | c->dowarn = PL_dowarn; |
|
|
412 | c->in_eval = PL_in_eval; |
|
|
413 | |
|
|
414 | c->curstackinfo = PL_curstackinfo; |
|
|
415 | c->curstack = PL_curstack; |
|
|
416 | c->mainstack = PL_mainstack; |
540 | c->mainstack = PL_mainstack; |
417 | c->stack_sp = PL_stack_sp; |
541 | |
418 | c->op = PL_op; |
542 | { |
419 | c->curpad = PL_curpad; |
543 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
420 | c->comppad = PL_comppad; |
544 | |
421 | c->compcv = PL_compcv; |
545 | slot->defav = GvAV (PL_defgv); |
422 | c->stack_base = PL_stack_base; |
546 | slot->defsv = DEFSV; |
423 | c->stack_max = PL_stack_max; |
547 | slot->errsv = ERRSV; |
424 | c->tmps_stack = PL_tmps_stack; |
548 | slot->irsgv = GvSV (irsgv); |
425 | c->tmps_floor = PL_tmps_floor; |
549 | |
426 | c->tmps_ix = PL_tmps_ix; |
550 | #define VAR(name,type) slot->name = PL_ ## name; |
427 | c->tmps_max = PL_tmps_max; |
551 | # include "state.h" |
428 | c->markstack = PL_markstack; |
552 | #undef VAR |
429 | c->markstack_ptr = PL_markstack_ptr; |
553 | } |
430 | c->markstack_max = PL_markstack_max; |
|
|
431 | c->scopestack = PL_scopestack; |
|
|
432 | c->scopestack_ix = PL_scopestack_ix; |
|
|
433 | c->scopestack_max = PL_scopestack_max; |
|
|
434 | c->savestack = PL_savestack; |
|
|
435 | c->savestack_ix = PL_savestack_ix; |
|
|
436 | c->savestack_max = PL_savestack_max; |
|
|
437 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
438 | c->retstack = PL_retstack; |
|
|
439 | c->retstack_ix = PL_retstack_ix; |
|
|
440 | c->retstack_max = PL_retstack_max; |
|
|
441 | #endif |
|
|
442 | c->curpm = PL_curpm; |
|
|
443 | c->curcop = PL_curcop; |
|
|
444 | } |
554 | } |
445 | |
555 | |
446 | /* |
556 | /* |
447 | * allocate various perl stacks. This is an exact copy |
557 | * allocate various perl stacks. This is an exact copy |
448 | * of perl.c:init_stacks, except that it uses less memory |
558 | * of perl.c:init_stacks, except that it uses less memory |
449 | * on the (sometimes correct) assumption that coroutines do |
559 | * on the (sometimes correct) assumption that coroutines do |
450 | * not usually need a lot of stackspace. |
560 | * not usually need a lot of stackspace. |
451 | */ |
561 | */ |
|
|
562 | #if 1 |
|
|
563 | # define coro_init_stacks init_stacks |
|
|
564 | #else |
452 | static void |
565 | static void |
453 | coro_init_stacks () |
566 | coro_init_stacks (pTHX) |
454 | { |
567 | { |
455 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
568 | PL_curstackinfo = new_stackinfo(32, 8); |
456 | PL_curstackinfo->si_type = PERLSI_MAIN; |
569 | PL_curstackinfo->si_type = PERLSI_MAIN; |
457 | PL_curstack = PL_curstackinfo->si_stack; |
570 | PL_curstack = PL_curstackinfo->si_stack; |
458 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
571 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
459 | |
572 | |
460 | PL_stack_base = AvARRAY(PL_curstack); |
573 | PL_stack_base = AvARRAY(PL_curstack); |
461 | PL_stack_sp = PL_stack_base; |
574 | PL_stack_sp = PL_stack_base; |
462 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
575 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
463 | |
576 | |
464 | New(50,PL_tmps_stack,96,SV*); |
577 | New(50,PL_tmps_stack,32,SV*); |
465 | PL_tmps_floor = -1; |
578 | PL_tmps_floor = -1; |
466 | PL_tmps_ix = -1; |
579 | PL_tmps_ix = -1; |
467 | PL_tmps_max = 96; |
580 | PL_tmps_max = 32; |
468 | |
581 | |
469 | New(54,PL_markstack,16,I32); |
582 | New(54,PL_markstack,16,I32); |
470 | PL_markstack_ptr = PL_markstack; |
583 | PL_markstack_ptr = PL_markstack; |
471 | PL_markstack_max = PL_markstack + 16; |
584 | PL_markstack_max = PL_markstack + 16; |
472 | |
585 | |
473 | #ifdef SET_MARK_OFFSET |
586 | #ifdef SET_MARK_OFFSET |
474 | SET_MARK_OFFSET; |
587 | SET_MARK_OFFSET; |
475 | #endif |
588 | #endif |
476 | |
589 | |
477 | New(54,PL_scopestack,16,I32); |
590 | New(54,PL_scopestack,8,I32); |
478 | PL_scopestack_ix = 0; |
591 | PL_scopestack_ix = 0; |
479 | PL_scopestack_max = 16; |
592 | PL_scopestack_max = 8; |
480 | |
593 | |
481 | New(54,PL_savestack,96,ANY); |
594 | New(54,PL_savestack,24,ANY); |
482 | PL_savestack_ix = 0; |
595 | PL_savestack_ix = 0; |
483 | PL_savestack_max = 96; |
596 | PL_savestack_max = 24; |
484 | |
597 | |
485 | #if !PERL_VERSION_ATLEAST (5,9,0) |
598 | #if !PERL_VERSION_ATLEAST (5,9,0) |
486 | New(54,PL_retstack,8,OP*); |
599 | New(54,PL_retstack,4,OP*); |
487 | PL_retstack_ix = 0; |
600 | PL_retstack_ix = 0; |
488 | PL_retstack_max = 8; |
601 | PL_retstack_max = 4; |
489 | #endif |
602 | #endif |
490 | } |
603 | } |
|
|
604 | #endif |
491 | |
605 | |
492 | /* |
606 | /* |
493 | * destroy the stacks, the callchain etc... |
607 | * destroy the stacks, the callchain etc... |
494 | */ |
608 | */ |
495 | static void |
609 | static void |
496 | destroy_stacks() |
610 | coro_destroy_stacks (pTHX) |
497 | { |
611 | { |
498 | if (!IN_DESTRUCT) |
|
|
499 | { |
|
|
500 | /* is this ugly, I ask? */ |
|
|
501 | LEAVE_SCOPE (0); |
|
|
502 | |
|
|
503 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
504 | FREETMPS; |
|
|
505 | |
|
|
506 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
507 | } |
|
|
508 | |
|
|
509 | while (PL_curstackinfo->si_next) |
612 | while (PL_curstackinfo->si_next) |
510 | PL_curstackinfo = PL_curstackinfo->si_next; |
613 | PL_curstackinfo = PL_curstackinfo->si_next; |
511 | |
614 | |
512 | while (PL_curstackinfo) |
615 | while (PL_curstackinfo) |
513 | { |
616 | { |
514 | PERL_SI *p = PL_curstackinfo->si_prev; |
617 | PERL_SI *p = PL_curstackinfo->si_prev; |
515 | |
618 | |
516 | { /*D*//*remove*/ |
|
|
517 | dSP; |
|
|
518 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
519 | PUTBACK; /* possibly superfluous */ |
|
|
520 | } |
|
|
521 | |
|
|
522 | if (!IN_DESTRUCT) |
619 | if (!IN_DESTRUCT) |
523 | { |
|
|
524 | dounwind (-1);/*D*//*remove*/ |
|
|
525 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
620 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
526 | } |
|
|
527 | |
621 | |
528 | Safefree (PL_curstackinfo->si_cxstack); |
622 | Safefree (PL_curstackinfo->si_cxstack); |
529 | Safefree (PL_curstackinfo); |
623 | Safefree (PL_curstackinfo); |
530 | PL_curstackinfo = p; |
624 | PL_curstackinfo = p; |
531 | } |
625 | } |
… | |
… | |
537 | #if !PERL_VERSION_ATLEAST (5,9,0) |
631 | #if !PERL_VERSION_ATLEAST (5,9,0) |
538 | Safefree (PL_retstack); |
632 | Safefree (PL_retstack); |
539 | #endif |
633 | #endif |
540 | } |
634 | } |
541 | |
635 | |
542 | static void |
636 | static size_t |
543 | setup_coro (struct coro *coro) |
637 | coro_rss (pTHX_ struct coro *coro) |
|
|
638 | { |
|
|
639 | size_t rss = sizeof (*coro); |
|
|
640 | |
|
|
641 | if (coro->mainstack) |
|
|
642 | { |
|
|
643 | perl_slots tmp_slot; |
|
|
644 | perl_slots *slot; |
|
|
645 | |
|
|
646 | if (coro->flags & CF_RUNNING) |
|
|
647 | { |
|
|
648 | slot = &tmp_slot; |
|
|
649 | |
|
|
650 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
651 | # include "state.h" |
|
|
652 | #undef VAR |
|
|
653 | } |
|
|
654 | else |
|
|
655 | slot = coro->slot; |
|
|
656 | |
|
|
657 | rss += sizeof (slot->curstackinfo); |
|
|
658 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
659 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
660 | rss += slot->tmps_max * sizeof (SV *); |
|
|
661 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
662 | rss += slot->scopestack_max * sizeof (I32); |
|
|
663 | rss += slot->savestack_max * sizeof (ANY); |
|
|
664 | |
|
|
665 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
666 | rss += slot->retstack_max * sizeof (OP *); |
|
|
667 | #endif |
|
|
668 | } |
|
|
669 | |
|
|
670 | return rss; |
|
|
671 | } |
|
|
672 | |
|
|
673 | /** coroutine stack handling ************************************************/ |
|
|
674 | |
|
|
675 | static void |
|
|
676 | coro_setup (pTHX_ struct coro *coro) |
544 | { |
677 | { |
545 | /* |
678 | /* |
546 | * emulate part of the perl startup here. |
679 | * emulate part of the perl startup here. |
547 | */ |
680 | */ |
548 | dTHX; |
681 | coro_init_stacks (aTHX); |
|
|
682 | |
|
|
683 | PL_runops = RUNOPS_DEFAULT; |
|
|
684 | PL_curcop = &PL_compiling; |
|
|
685 | PL_in_eval = EVAL_NULL; |
|
|
686 | PL_comppad = 0; |
|
|
687 | PL_curpm = 0; |
|
|
688 | PL_curpad = 0; |
|
|
689 | PL_localizing = 0; |
|
|
690 | PL_dirty = 0; |
|
|
691 | PL_restartop = 0; |
|
|
692 | PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
693 | PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
694 | |
|
|
695 | GvSV (PL_defgv) = newSV (0); |
|
|
696 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
697 | GvSV (PL_errgv) = newSV (0); |
|
|
698 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
699 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
700 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
|
|
701 | |
|
|
702 | { |
|
|
703 | dSP; |
|
|
704 | LOGOP myop; |
|
|
705 | |
|
|
706 | Zero (&myop, 1, LOGOP); |
|
|
707 | myop.op_next = Nullop; |
|
|
708 | myop.op_flags = OPf_WANT_VOID; |
|
|
709 | |
|
|
710 | PUSHMARK (SP); |
|
|
711 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
712 | PUTBACK; |
|
|
713 | PL_op = (OP *)&myop; |
|
|
714 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
715 | SPAGAIN; |
|
|
716 | } |
|
|
717 | |
|
|
718 | ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ |
|
|
719 | } |
|
|
720 | |
|
|
721 | static void |
|
|
722 | coro_destroy (pTHX_ struct coro *coro) |
|
|
723 | { |
|
|
724 | if (!IN_DESTRUCT) |
|
|
725 | { |
|
|
726 | /* restore all saved variables and stuff */ |
|
|
727 | LEAVE_SCOPE (0); |
|
|
728 | assert (PL_tmps_floor == -1); |
|
|
729 | |
|
|
730 | /* free all temporaries */ |
|
|
731 | FREETMPS; |
|
|
732 | assert (PL_tmps_ix == -1); |
|
|
733 | |
|
|
734 | /* unwind all extra stacks */ |
|
|
735 | POPSTACK_TO (PL_mainstack); |
|
|
736 | |
|
|
737 | /* unwind main stack */ |
|
|
738 | dounwind (-1); |
|
|
739 | } |
|
|
740 | |
|
|
741 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
742 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
743 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
744 | SvREFCNT_dec (PL_defoutgv); |
|
|
745 | SvREFCNT_dec (PL_rs); |
|
|
746 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
747 | |
|
|
748 | SvREFCNT_dec (PL_diehook); |
|
|
749 | SvREFCNT_dec (PL_warnhook); |
|
|
750 | |
|
|
751 | SvREFCNT_dec (coro->saved_deffh); |
|
|
752 | SvREFCNT_dec (coro->throw); |
|
|
753 | |
|
|
754 | coro_destroy_stacks (aTHX); |
|
|
755 | } |
|
|
756 | |
|
|
757 | static void |
|
|
758 | free_coro_mortal (pTHX) |
|
|
759 | { |
|
|
760 | if (expect_true (coro_mortal)) |
|
|
761 | { |
|
|
762 | SvREFCNT_dec (coro_mortal); |
|
|
763 | coro_mortal = 0; |
|
|
764 | } |
|
|
765 | } |
|
|
766 | |
|
|
767 | static int |
|
|
768 | runops_trace (pTHX) |
|
|
769 | { |
|
|
770 | COP *oldcop = 0; |
|
|
771 | int oldcxix = -2; |
|
|
772 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
773 | coro_cctx *cctx = coro->cctx; |
|
|
774 | |
|
|
775 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
776 | { |
|
|
777 | PERL_ASYNC_CHECK (); |
|
|
778 | |
|
|
779 | if (cctx->flags & CC_TRACE_ALL) |
|
|
780 | { |
|
|
781 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
782 | { |
|
|
783 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
784 | SV **bot, **top; |
|
|
785 | AV *av = newAV (); /* return values */ |
|
|
786 | SV **cb; |
|
|
787 | dSP; |
|
|
788 | |
|
|
789 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
790 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
791 | if (isGV (gv)) |
|
|
792 | gv_efullname3 (fullname, gv, 0); |
|
|
793 | |
|
|
794 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
795 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
796 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
797 | : bot; |
|
|
798 | |
|
|
799 | av_extend (av, top - bot); |
|
|
800 | while (bot < top) |
|
|
801 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
802 | |
|
|
803 | PL_runops = RUNOPS_DEFAULT; |
|
|
804 | ENTER; |
|
|
805 | SAVETMPS; |
|
|
806 | EXTEND (SP, 3); |
|
|
807 | PUSHMARK (SP); |
|
|
808 | PUSHs (&PL_sv_no); |
|
|
809 | PUSHs (fullname); |
|
|
810 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
811 | PUTBACK; |
|
|
812 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
813 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
814 | SPAGAIN; |
|
|
815 | FREETMPS; |
|
|
816 | LEAVE; |
|
|
817 | PL_runops = runops_trace; |
|
|
818 | } |
|
|
819 | |
|
|
820 | if (oldcop != PL_curcop) |
|
|
821 | { |
|
|
822 | oldcop = PL_curcop; |
|
|
823 | |
|
|
824 | if (PL_curcop != &PL_compiling) |
|
|
825 | { |
|
|
826 | SV **cb; |
|
|
827 | |
|
|
828 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
829 | { |
|
|
830 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
831 | |
|
|
832 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
833 | { |
|
|
834 | runops_proc_t old_runops = PL_runops; |
|
|
835 | dSP; |
|
|
836 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
837 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
838 | |
|
|
839 | if (isGV (gv)) |
|
|
840 | gv_efullname3 (fullname, gv, 0); |
|
|
841 | |
|
|
842 | PL_runops = RUNOPS_DEFAULT; |
|
|
843 | ENTER; |
|
|
844 | SAVETMPS; |
|
|
845 | EXTEND (SP, 3); |
|
|
846 | PUSHMARK (SP); |
|
|
847 | PUSHs (&PL_sv_yes); |
|
|
848 | PUSHs (fullname); |
|
|
849 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
850 | PUTBACK; |
|
|
851 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
852 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
853 | SPAGAIN; |
|
|
854 | FREETMPS; |
|
|
855 | LEAVE; |
|
|
856 | PL_runops = runops_trace; |
|
|
857 | } |
|
|
858 | |
|
|
859 | oldcxix = cxstack_ix; |
|
|
860 | } |
|
|
861 | |
|
|
862 | if (cctx->flags & CC_TRACE_LINE) |
|
|
863 | { |
|
|
864 | dSP; |
|
|
865 | |
|
|
866 | PL_runops = RUNOPS_DEFAULT; |
|
|
867 | ENTER; |
|
|
868 | SAVETMPS; |
|
|
869 | EXTEND (SP, 3); |
|
|
870 | PL_runops = RUNOPS_DEFAULT; |
|
|
871 | PUSHMARK (SP); |
|
|
872 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
873 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
874 | PUTBACK; |
|
|
875 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); |
|
|
876 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
877 | SPAGAIN; |
|
|
878 | FREETMPS; |
|
|
879 | LEAVE; |
|
|
880 | PL_runops = runops_trace; |
|
|
881 | } |
|
|
882 | } |
|
|
883 | } |
|
|
884 | } |
|
|
885 | } |
|
|
886 | |
|
|
887 | TAINT_NOT; |
|
|
888 | return 0; |
|
|
889 | } |
|
|
890 | |
|
|
891 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
892 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
893 | /* during execution of a perl program */ |
|
|
894 | static void NOINLINE |
|
|
895 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
896 | { |
549 | dSP; |
897 | dSP; |
550 | UNOP myop; |
898 | LOGOP myop; |
551 | SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE); |
|
|
552 | |
899 | |
553 | coro_init_stacks (); |
900 | PL_top_env = &PL_start_env; |
554 | /*PL_curcop = 0;*/ |
|
|
555 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
556 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
557 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
558 | |
901 | |
559 | SPAGAIN; |
902 | if (cctx->flags & CC_TRACE) |
|
|
903 | PL_runops = runops_trace; |
560 | |
904 | |
561 | Zero (&myop, 1, UNOP); |
905 | Zero (&myop, 1, LOGOP); |
562 | myop.op_next = Nullop; |
906 | myop.op_next = PL_op; |
563 | myop.op_flags = OPf_WANT_VOID; |
907 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
564 | |
908 | |
|
|
909 | PUSHMARK (SP); |
|
|
910 | EXTEND (SP, 2); |
|
|
911 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
912 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
913 | PUTBACK; |
565 | PL_op = (OP *)&myop; |
914 | PL_op = (OP *)&myop; |
566 | |
|
|
567 | PUSHMARK(SP); |
|
|
568 | XPUSHs (sub_init); |
|
|
569 | PUTBACK; |
|
|
570 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
915 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
571 | SPAGAIN; |
916 | SPAGAIN; |
572 | |
|
|
573 | ENTER; /* necessary e.g. for dounwind */ |
|
|
574 | } |
917 | } |
575 | |
918 | |
|
|
919 | /* |
|
|
920 | * this is a _very_ stripped down perl interpreter ;) |
|
|
921 | */ |
576 | static void |
922 | static void |
577 | free_coro_mortal () |
923 | cctx_run (void *arg) |
578 | { |
924 | { |
579 | if (coro_mortal) |
925 | dTHX; |
580 | { |
926 | |
581 | SvREFCNT_dec (coro_mortal); |
927 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
582 | coro_mortal = 0; |
928 | UNLOCK; |
|
|
929 | |
|
|
930 | /* we now skip the entersub that lead to transfer() */ |
|
|
931 | PL_op = PL_op->op_next; |
|
|
932 | |
|
|
933 | /* inject a fake subroutine call to cctx_init */ |
|
|
934 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
|
|
935 | |
|
|
936 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
937 | PL_restartop = PL_op; |
|
|
938 | perl_run (PL_curinterp); |
|
|
939 | |
|
|
940 | /* |
|
|
941 | * If perl-run returns we assume exit() was being called or the coro |
|
|
942 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
943 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
944 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
945 | * coroutine as Coro has no such concept |
|
|
946 | */ |
|
|
947 | PL_top_env = main_top_env; |
|
|
948 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
949 | } |
|
|
950 | |
|
|
951 | static coro_cctx * |
|
|
952 | cctx_new () |
|
|
953 | { |
|
|
954 | coro_cctx *cctx; |
|
|
955 | void *stack_start; |
|
|
956 | size_t stack_size; |
|
|
957 | |
|
|
958 | ++cctx_count; |
|
|
959 | |
|
|
960 | Newz (0, cctx, 1, coro_cctx); |
|
|
961 | |
|
|
962 | #if HAVE_MMAP |
|
|
963 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
|
|
964 | /* mmap supposedly does allocate-on-write for us */ |
|
|
965 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
966 | |
|
|
967 | if (cctx->sptr != (void *)-1) |
583 | } |
968 | { |
584 | } |
969 | # if CORO_STACKGUARD |
|
|
970 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
971 | # endif |
|
|
972 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
973 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
974 | cctx->flags |= CC_MAPPED; |
|
|
975 | } |
|
|
976 | else |
|
|
977 | #endif |
|
|
978 | { |
|
|
979 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
980 | New (0, cctx->sptr, coro_stacksize, long); |
585 | |
981 | |
|
|
982 | if (!cctx->sptr) |
|
|
983 | { |
|
|
984 | perror ("FATAL: unable to allocate stack for coroutine"); |
|
|
985 | _exit (EXIT_FAILURE); |
|
|
986 | } |
|
|
987 | |
|
|
988 | stack_start = cctx->sptr; |
|
|
989 | stack_size = cctx->ssize; |
|
|
990 | } |
|
|
991 | |
|
|
992 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
993 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
|
|
994 | |
|
|
995 | return cctx; |
|
|
996 | } |
|
|
997 | |
|
|
998 | static void |
|
|
999 | cctx_destroy (coro_cctx *cctx) |
|
|
1000 | { |
|
|
1001 | if (!cctx) |
|
|
1002 | return; |
|
|
1003 | |
|
|
1004 | --cctx_count; |
|
|
1005 | |
|
|
1006 | #if CORO_USE_VALGRIND |
|
|
1007 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1008 | #endif |
|
|
1009 | |
|
|
1010 | #if HAVE_MMAP |
|
|
1011 | if (cctx->flags & CC_MAPPED) |
|
|
1012 | munmap (cctx->sptr, cctx->ssize); |
|
|
1013 | else |
|
|
1014 | #endif |
|
|
1015 | Safefree (cctx->sptr); |
|
|
1016 | |
|
|
1017 | Safefree (cctx); |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | /* wether this cctx should be destructed */ |
|
|
1021 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1022 | |
|
|
1023 | static coro_cctx * |
|
|
1024 | cctx_get (pTHX) |
|
|
1025 | { |
|
|
1026 | while (expect_true (cctx_first)) |
|
|
1027 | { |
|
|
1028 | coro_cctx *cctx = cctx_first; |
|
|
1029 | cctx_first = cctx->next; |
|
|
1030 | --cctx_idle; |
|
|
1031 | |
|
|
1032 | if (expect_true (!CCTX_EXPIRED (cctx))) |
|
|
1033 | return cctx; |
|
|
1034 | |
|
|
1035 | cctx_destroy (cctx); |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | return cctx_new (); |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | static void |
|
|
1042 | cctx_put (coro_cctx *cctx) |
|
|
1043 | { |
|
|
1044 | /* free another cctx if overlimit */ |
|
|
1045 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
|
|
1046 | { |
|
|
1047 | coro_cctx *first = cctx_first; |
|
|
1048 | cctx_first = first->next; |
|
|
1049 | --cctx_idle; |
|
|
1050 | |
|
|
1051 | cctx_destroy (first); |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | ++cctx_idle; |
|
|
1055 | cctx->next = cctx_first; |
|
|
1056 | cctx_first = cctx; |
|
|
1057 | } |
|
|
1058 | |
|
|
1059 | /** coroutine switching *****************************************************/ |
|
|
1060 | |
|
|
1061 | static void |
|
|
1062 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1063 | { |
|
|
1064 | if (expect_true (prev != next)) |
|
|
1065 | { |
|
|
1066 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1067 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1068 | |
|
|
1069 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1070 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1071 | |
|
|
1072 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1073 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1074 | |
|
|
1075 | if ( |
|
|
1076 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
1077 | expect_false (PL_parser) |
|
|
1078 | #else |
|
|
1079 | expect_false (PL_lex_state != LEX_NOTPARSING) |
|
|
1080 | #endif |
|
|
1081 | ) |
|
|
1082 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
1083 | } |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | /* always use the TRANSFER macro */ |
586 | static void NOINLINE |
1087 | static void NOINLINE |
587 | prepare_cctx (coro_stack *cctx) |
|
|
588 | { |
|
|
589 | dSP; |
|
|
590 | UNOP myop; |
|
|
591 | |
|
|
592 | Zero (&myop, 1, UNOP); |
|
|
593 | myop.op_next = PL_op; |
|
|
594 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
|
|
595 | |
|
|
596 | PUSHMARK(SP); |
|
|
597 | EXTEND (SP, 2); |
|
|
598 | PUSHs (newSViv (PTR2IV (cctx))); |
|
|
599 | PUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE)); |
|
|
600 | PUTBACK; |
|
|
601 | PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
602 | SPAGAIN; |
|
|
603 | } |
|
|
604 | |
|
|
605 | static void |
|
|
606 | coro_run (void *arg) |
|
|
607 | { |
|
|
608 | /* |
|
|
609 | * this is a _very_ stripped down perl interpreter ;) |
|
|
610 | */ |
|
|
611 | UNLOCK; |
|
|
612 | |
|
|
613 | PL_top_env = &PL_start_env; |
|
|
614 | prepare_cctx ((coro_stack *)arg); |
|
|
615 | |
|
|
616 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
617 | perl_run (PERL_GET_CONTEXT); |
|
|
618 | |
|
|
619 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr); |
|
|
620 | abort (); |
|
|
621 | } |
|
|
622 | |
|
|
623 | static coro_stack * |
|
|
624 | stack_new () |
|
|
625 | { |
|
|
626 | coro_stack *stack; |
|
|
627 | |
|
|
628 | New (0, stack, 1, coro_stack); |
|
|
629 | |
|
|
630 | #if HAVE_MMAP |
|
|
631 | |
|
|
632 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
|
|
633 | /* mmap suppsedly does allocate-on-write for us */ |
|
|
634 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
635 | |
|
|
636 | if (stack->sptr == (void *)-1) |
|
|
637 | { |
|
|
638 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
639 | _exit (EXIT_FAILURE); |
|
|
640 | } |
|
|
641 | |
|
|
642 | # if STACKGUARD |
|
|
643 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
644 | # endif |
|
|
645 | |
|
|
646 | #else |
|
|
647 | |
|
|
648 | stack->ssize = STACKSIZE * (long)sizeof (long); |
|
|
649 | New (0, stack->sptr, STACKSIZE, long); |
|
|
650 | |
|
|
651 | if (!stack->sptr) |
|
|
652 | { |
|
|
653 | perror (stderr, "FATAL: unable to malloc stack for coroutine"); |
|
|
654 | _exit (EXIT_FAILURE); |
|
|
655 | } |
|
|
656 | |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize); |
|
|
660 | |
|
|
661 | return stack; |
|
|
662 | } |
|
|
663 | |
|
|
664 | static void |
|
|
665 | stack_free (coro_stack *stack) |
|
|
666 | { |
|
|
667 | if (!stack) |
|
|
668 | return; |
|
|
669 | |
|
|
670 | #if HAVE_MMAP |
|
|
671 | munmap (stack->sptr, stack->ssize); |
|
|
672 | #else |
|
|
673 | Safefree (stack->sptr); |
|
|
674 | #endif |
|
|
675 | |
|
|
676 | Safefree (stack); |
|
|
677 | } |
|
|
678 | |
|
|
679 | static coro_stack *stack_first; |
|
|
680 | |
|
|
681 | static coro_stack * |
|
|
682 | stack_get () |
|
|
683 | { |
|
|
684 | coro_stack *stack; |
|
|
685 | |
|
|
686 | if (stack_first) |
|
|
687 | { |
|
|
688 | stack = stack_first; |
|
|
689 | stack_first = stack->next; |
|
|
690 | } |
|
|
691 | else |
|
|
692 | { |
|
|
693 | stack = stack_new (); |
|
|
694 | PL_op = PL_op->op_next; |
|
|
695 | } |
|
|
696 | |
|
|
697 | return stack; |
|
|
698 | } |
|
|
699 | |
|
|
700 | static void |
|
|
701 | stack_put (coro_stack *stack) |
|
|
702 | { |
|
|
703 | stack->next = stack_first; |
|
|
704 | stack_first = stack; |
|
|
705 | } |
|
|
706 | |
|
|
707 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
708 | static void NOINLINE |
|
|
709 | transfer (struct coro *prev, struct coro *next, int flags) |
1088 | transfer (pTHX_ struct coro *prev, struct coro *next) |
710 | { |
1089 | { |
711 | dSTACKLEVEL; |
1090 | dSTACKLEVEL; |
712 | |
1091 | |
713 | /* sometimes transfer is only called to set idle_sp */ |
1092 | /* sometimes transfer is only called to set idle_sp */ |
714 | if (flags == TRANSFER_SET_STACKLEVEL) |
1093 | if (expect_false (!next)) |
|
|
1094 | { |
715 | ((coro_stack *)prev)->idle_sp = STACKLEVEL; |
1095 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
716 | else if (prev != next) |
1096 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
717 | { |
1097 | } |
|
|
1098 | else if (expect_true (prev != next)) |
|
|
1099 | { |
718 | coro_stack *prev__stack; |
1100 | coro_cctx *prev__cctx; |
|
|
1101 | |
|
|
1102 | if (expect_false (prev->flags & CF_NEW)) |
|
|
1103 | { |
|
|
1104 | /* create a new empty context */ |
|
|
1105 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1106 | prev->flags &= ~CF_NEW; |
|
|
1107 | prev->flags |= CF_RUNNING; |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | prev->flags &= ~CF_RUNNING; |
|
|
1111 | next->flags |= CF_RUNNING; |
719 | |
1112 | |
720 | LOCK; |
1113 | LOCK; |
721 | |
1114 | |
722 | if (next->mainstack) |
1115 | if (expect_false (next->flags & CF_NEW)) |
723 | { |
1116 | { |
724 | /* coroutine already started */ |
1117 | /* need to start coroutine */ |
725 | SAVE (prev, flags); |
1118 | next->flags &= ~CF_NEW; |
726 | LOAD (next); |
1119 | /* first get rid of the old state */ |
|
|
1120 | save_perl (aTHX_ prev); |
|
|
1121 | /* setup coroutine call */ |
|
|
1122 | coro_setup (aTHX_ next); |
727 | } |
1123 | } |
728 | else |
1124 | else |
729 | { |
1125 | { |
730 | /* need to start coroutine */ |
1126 | /* coroutine already started */ |
731 | /* first get rid of the old state */ |
1127 | save_perl (aTHX_ prev); |
732 | SAVE (prev, -1); |
1128 | load_perl (aTHX_ next); |
733 | /* setup coroutine call */ |
|
|
734 | setup_coro (next); |
|
|
735 | /* need a stack */ |
|
|
736 | next->stack = 0; |
|
|
737 | } |
1129 | } |
738 | |
1130 | |
739 | if (!prev->stack) |
|
|
740 | /* create a new empty context */ |
|
|
741 | Newz (0, prev->stack, 1, coro_stack); |
|
|
742 | |
|
|
743 | prev__stack = prev->stack; |
1131 | prev__cctx = prev->cctx; |
744 | |
1132 | |
745 | /* possibly "free" the stack */ |
1133 | /* possibly "free" the cctx */ |
746 | if (prev__stack->idle_sp == STACKLEVEL) |
1134 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
747 | { |
1135 | { |
748 | stack_put (prev__stack); |
1136 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
1137 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1138 | |
749 | prev->stack = 0; |
1139 | prev->cctx = 0; |
|
|
1140 | |
|
|
1141 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1142 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1143 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1144 | if (!next->cctx) |
|
|
1145 | next->cctx = cctx_get (aTHX); |
|
|
1146 | |
|
|
1147 | cctx_put (prev__cctx); |
750 | } |
1148 | } |
751 | |
1149 | |
752 | if (!next->stack) |
1150 | ++next->usecount; |
753 | next->stack = stack_get (); |
|
|
754 | |
1151 | |
755 | if (prev__stack != next->stack) |
1152 | if (expect_true (!next->cctx)) |
|
|
1153 | next->cctx = cctx_get (aTHX); |
|
|
1154 | |
|
|
1155 | if (expect_false (prev__cctx != next->cctx)) |
756 | { |
1156 | { |
757 | prev__stack->top_env = PL_top_env; |
1157 | prev__cctx->top_env = PL_top_env; |
758 | PL_top_env = next->stack->top_env; |
1158 | PL_top_env = next->cctx->top_env; |
759 | coro_transfer (&prev__stack->cctx, &next->stack->cctx); |
1159 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
760 | } |
1160 | } |
761 | |
1161 | |
762 | free_coro_mortal (); |
1162 | free_coro_mortal (aTHX); |
763 | |
|
|
764 | UNLOCK; |
1163 | UNLOCK; |
|
|
1164 | |
|
|
1165 | if (expect_false (prev->throw || next->throw)) |
|
|
1166 | { |
|
|
1167 | struct coro *coro = SvSTATE (coro_current); |
|
|
1168 | |
|
|
1169 | if (coro->throw) |
|
|
1170 | { |
|
|
1171 | SV *exception = coro->throw; |
|
|
1172 | coro->throw = 0; |
|
|
1173 | sv_setsv (ERRSV, exception); |
|
|
1174 | croak (0); |
|
|
1175 | } |
|
|
1176 | } |
765 | } |
1177 | } |
766 | } |
1178 | } |
767 | |
1179 | |
768 | struct transfer_args |
1180 | struct transfer_args |
769 | { |
1181 | { |
770 | struct coro *prev, *next; |
1182 | struct coro *prev, *next; |
771 | int flags; |
|
|
772 | }; |
1183 | }; |
773 | |
1184 | |
774 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
1185 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1186 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
775 | |
1187 | |
|
|
1188 | /** high level stuff ********************************************************/ |
|
|
1189 | |
776 | static void |
1190 | static int |
777 | coro_state_destroy (struct coro *coro) |
1191 | coro_state_destroy (pTHX_ struct coro *coro) |
778 | { |
1192 | { |
779 | if (coro->refcnt--) |
1193 | if (coro->flags & CF_DESTROYED) |
780 | return; |
1194 | return 0; |
|
|
1195 | |
|
|
1196 | coro->flags |= CF_DESTROYED; |
|
|
1197 | |
|
|
1198 | if (coro->flags & CF_READY) |
|
|
1199 | { |
|
|
1200 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1201 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1202 | LOCK; |
|
|
1203 | --coro_nready; |
|
|
1204 | UNLOCK; |
|
|
1205 | } |
|
|
1206 | else |
|
|
1207 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
781 | |
1208 | |
782 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1209 | if (coro->mainstack && coro->mainstack != main_mainstack) |
783 | { |
1210 | { |
784 | struct coro temp; |
1211 | struct coro temp; |
785 | |
1212 | |
786 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
1213 | if (coro->flags & CF_RUNNING) |
787 | LOAD (coro); |
1214 | croak ("FATAL: tried to destroy currently running coroutine"); |
788 | |
1215 | |
789 | destroy_stacks (); |
1216 | save_perl (aTHX_ &temp); |
|
|
1217 | load_perl (aTHX_ coro); |
790 | |
1218 | |
791 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1219 | coro_destroy (aTHX_ coro); |
792 | |
1220 | |
|
|
1221 | load_perl (aTHX_ &temp); |
|
|
1222 | |
793 | coro->mainstack = 0; |
1223 | coro->slot = 0; |
794 | } |
1224 | } |
795 | |
1225 | |
796 | stack_free (coro->stack); |
1226 | cctx_destroy (coro->cctx); |
797 | SvREFCNT_dec (coro->args); |
1227 | SvREFCNT_dec (coro->args); |
798 | Safefree (coro); |
1228 | |
|
|
1229 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1230 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1231 | if (coro == coro_first) coro_first = coro->next; |
|
|
1232 | |
|
|
1233 | return 1; |
799 | } |
1234 | } |
800 | |
1235 | |
801 | static int |
1236 | static int |
802 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1237 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
803 | { |
1238 | { |
804 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1239 | struct coro *coro = (struct coro *)mg->mg_ptr; |
805 | mg->mg_ptr = 0; |
1240 | mg->mg_ptr = 0; |
806 | |
1241 | |
|
|
1242 | coro->hv = 0; |
|
|
1243 | |
|
|
1244 | if (--coro->refcnt < 0) |
|
|
1245 | { |
807 | coro_state_destroy (coro); |
1246 | coro_state_destroy (aTHX_ coro); |
|
|
1247 | Safefree (coro); |
|
|
1248 | } |
808 | |
1249 | |
809 | return 0; |
1250 | return 0; |
810 | } |
1251 | } |
811 | |
1252 | |
812 | static int |
1253 | static int |
… | |
… | |
819 | return 0; |
1260 | return 0; |
820 | } |
1261 | } |
821 | |
1262 | |
822 | static MGVTBL coro_state_vtbl = { |
1263 | static MGVTBL coro_state_vtbl = { |
823 | 0, 0, 0, 0, |
1264 | 0, 0, 0, 0, |
824 | coro_state_clear, |
1265 | coro_state_free, |
825 | 0, |
1266 | 0, |
826 | #ifdef MGf_DUP |
1267 | #ifdef MGf_DUP |
827 | coro_state_dup, |
1268 | coro_state_dup, |
|
|
1269 | #else |
|
|
1270 | # define MGf_DUP 0 |
828 | #endif |
1271 | #endif |
829 | }; |
1272 | }; |
830 | |
1273 | |
831 | static struct coro * |
|
|
832 | SvSTATE (SV *coro) |
|
|
833 | { |
|
|
834 | HV *stash; |
|
|
835 | MAGIC *mg; |
|
|
836 | |
|
|
837 | if (SvROK (coro)) |
|
|
838 | coro = SvRV (coro); |
|
|
839 | |
|
|
840 | stash = SvSTASH (coro); |
|
|
841 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
842 | { |
|
|
843 | /* very slow, but rare, check */ |
|
|
844 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
845 | croak ("Coro::State object required"); |
|
|
846 | } |
|
|
847 | |
|
|
848 | mg = SvMAGIC (coro); |
|
|
849 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
850 | return (struct coro *)mg->mg_ptr; |
|
|
851 | } |
|
|
852 | |
|
|
853 | static void |
1274 | static void |
854 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
1275 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
855 | { |
1276 | { |
856 | ta->prev = SvSTATE (prev); |
1277 | ta->prev = SvSTATE (prev_sv); |
857 | ta->next = SvSTATE (next); |
1278 | ta->next = SvSTATE (next_sv); |
858 | ta->flags = flags; |
1279 | TRANSFER_CHECK (*ta); |
859 | } |
1280 | } |
860 | |
1281 | |
861 | static void |
1282 | static void |
862 | api_transfer (SV *prev, SV *next, int flags) |
1283 | api_transfer (SV *prev_sv, SV *next_sv) |
863 | { |
1284 | { |
864 | dTHX; |
1285 | dTHX; |
865 | struct transfer_args ta; |
1286 | struct transfer_args ta; |
866 | |
1287 | |
867 | prepare_transfer (&ta, prev, next, flags); |
1288 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
868 | TRANSFER (ta); |
1289 | TRANSFER (ta); |
869 | } |
1290 | } |
870 | |
1291 | |
871 | /** Coro ********************************************************************/ |
1292 | /** Coro ********************************************************************/ |
872 | |
1293 | |
873 | #define PRIO_MAX 3 |
|
|
874 | #define PRIO_HIGH 1 |
|
|
875 | #define PRIO_NORMAL 0 |
|
|
876 | #define PRIO_LOW -1 |
|
|
877 | #define PRIO_IDLE -3 |
|
|
878 | #define PRIO_MIN -4 |
|
|
879 | |
|
|
880 | /* for Coro.pm */ |
|
|
881 | static GV *coro_current, *coro_idle; |
|
|
882 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
883 | static int coro_nready; |
|
|
884 | |
|
|
885 | static void |
1294 | static void |
886 | coro_enq (SV *sv) |
1295 | coro_enq (pTHX_ SV *coro_sv) |
887 | { |
1296 | { |
888 | int prio; |
|
|
889 | |
|
|
890 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
891 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
892 | |
|
|
893 | prio = SvSTATE (sv)->prio; |
|
|
894 | |
|
|
895 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1297 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
896 | coro_nready++; |
|
|
897 | } |
1298 | } |
898 | |
1299 | |
899 | static SV * |
1300 | static SV * |
900 | coro_deq (int min_prio) |
1301 | coro_deq (pTHX_ int min_prio) |
901 | { |
1302 | { |
902 | int prio = PRIO_MAX - PRIO_MIN; |
1303 | int prio = PRIO_MAX - PRIO_MIN; |
903 | |
1304 | |
904 | min_prio -= PRIO_MIN; |
1305 | min_prio -= PRIO_MIN; |
905 | if (min_prio < 0) |
1306 | if (min_prio < 0) |
906 | min_prio = 0; |
1307 | min_prio = 0; |
907 | |
1308 | |
908 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1309 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
909 | if (AvFILLp (coro_ready [prio]) >= 0) |
1310 | if (AvFILLp (coro_ready [prio]) >= 0) |
910 | { |
|
|
911 | coro_nready--; |
|
|
912 | return av_shift (coro_ready [prio]); |
1311 | return av_shift (coro_ready [prio]); |
913 | } |
|
|
914 | |
1312 | |
915 | return 0; |
1313 | return 0; |
916 | } |
1314 | } |
917 | |
1315 | |
918 | static void |
1316 | static int |
919 | api_ready (SV *coro) |
1317 | api_ready (SV *coro_sv) |
920 | { |
1318 | { |
921 | dTHX; |
1319 | dTHX; |
|
|
1320 | struct coro *coro; |
922 | |
1321 | |
923 | if (SvROK (coro)) |
1322 | if (SvROK (coro_sv)) |
924 | coro = SvRV (coro); |
1323 | coro_sv = SvRV (coro_sv); |
|
|
1324 | |
|
|
1325 | coro = SvSTATE (coro_sv); |
|
|
1326 | |
|
|
1327 | if (coro->flags & CF_READY) |
|
|
1328 | return 0; |
|
|
1329 | |
|
|
1330 | coro->flags |= CF_READY; |
925 | |
1331 | |
926 | LOCK; |
1332 | LOCK; |
927 | coro_enq (SvREFCNT_inc (coro)); |
1333 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1334 | ++coro_nready; |
928 | UNLOCK; |
1335 | UNLOCK; |
929 | } |
|
|
930 | |
1336 | |
|
|
1337 | return 1; |
|
|
1338 | } |
|
|
1339 | |
931 | static void |
1340 | static int |
|
|
1341 | api_is_ready (SV *coro_sv) |
|
|
1342 | { |
|
|
1343 | dTHX; |
|
|
1344 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1345 | } |
|
|
1346 | |
|
|
1347 | static void |
932 | prepare_schedule (struct transfer_args *ta) |
1348 | prepare_schedule (pTHX_ struct transfer_args *ta) |
933 | { |
1349 | { |
934 | SV *current, *prev, *next; |
1350 | SV *prev_sv, *next_sv; |
935 | |
|
|
936 | current = GvSV (coro_current); |
|
|
937 | |
1351 | |
938 | for (;;) |
1352 | for (;;) |
939 | { |
1353 | { |
940 | LOCK; |
1354 | LOCK; |
941 | next = coro_deq (PRIO_MIN); |
1355 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1356 | |
|
|
1357 | /* nothing to schedule: call the idle handler */ |
|
|
1358 | if (expect_false (!next_sv)) |
|
|
1359 | { |
|
|
1360 | dSP; |
|
|
1361 | UNLOCK; |
|
|
1362 | |
|
|
1363 | ENTER; |
|
|
1364 | SAVETMPS; |
|
|
1365 | |
|
|
1366 | PUSHMARK (SP); |
|
|
1367 | PUTBACK; |
|
|
1368 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1369 | |
|
|
1370 | FREETMPS; |
|
|
1371 | LEAVE; |
|
|
1372 | continue; |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | ta->next = SvSTATE (next_sv); |
|
|
1376 | |
|
|
1377 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1378 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1379 | { |
|
|
1380 | UNLOCK; |
|
|
1381 | SvREFCNT_dec (next_sv); |
|
|
1382 | /* coro_nready is already taken care of by destroy */ |
|
|
1383 | continue; |
|
|
1384 | } |
|
|
1385 | |
|
|
1386 | --coro_nready; |
942 | UNLOCK; |
1387 | UNLOCK; |
943 | |
|
|
944 | if (next) |
|
|
945 | break; |
1388 | break; |
946 | |
|
|
947 | { |
|
|
948 | dSP; |
|
|
949 | |
|
|
950 | ENTER; |
|
|
951 | SAVETMPS; |
|
|
952 | |
|
|
953 | PUSHMARK (SP); |
|
|
954 | PUTBACK; |
|
|
955 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
956 | |
|
|
957 | FREETMPS; |
|
|
958 | LEAVE; |
|
|
959 | } |
1389 | } |
960 | } |
|
|
961 | |
|
|
962 | prev = SvRV (current); |
|
|
963 | SvRV (current) = next; |
|
|
964 | |
1390 | |
965 | /* free this only after the transfer */ |
1391 | /* free this only after the transfer */ |
|
|
1392 | prev_sv = SvRV (coro_current); |
|
|
1393 | ta->prev = SvSTATE (prev_sv); |
|
|
1394 | TRANSFER_CHECK (*ta); |
|
|
1395 | assert (ta->next->flags & CF_READY); |
|
|
1396 | ta->next->flags &= ~CF_READY; |
|
|
1397 | SvRV_set (coro_current, next_sv); |
|
|
1398 | |
966 | LOCK; |
1399 | LOCK; |
967 | free_coro_mortal (); |
1400 | free_coro_mortal (aTHX); |
|
|
1401 | coro_mortal = prev_sv; |
968 | UNLOCK; |
1402 | UNLOCK; |
969 | coro_mortal = prev; |
|
|
970 | |
|
|
971 | ta->prev = SvSTATE (prev); |
|
|
972 | ta->next = SvSTATE (next); |
|
|
973 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
974 | } |
1403 | } |
975 | |
1404 | |
976 | static void |
1405 | static void |
977 | prepare_cede (struct transfer_args *ta) |
1406 | prepare_cede (pTHX_ struct transfer_args *ta) |
978 | { |
1407 | { |
979 | LOCK; |
1408 | api_ready (coro_current); |
980 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
981 | UNLOCK; |
|
|
982 | |
|
|
983 | prepare_schedule (ta); |
1409 | prepare_schedule (aTHX_ ta); |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | static int |
|
|
1413 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1414 | { |
|
|
1415 | if (coro_nready) |
|
|
1416 | { |
|
|
1417 | SV *prev = SvRV (coro_current); |
|
|
1418 | prepare_schedule (aTHX_ ta); |
|
|
1419 | api_ready (prev); |
|
|
1420 | return 1; |
|
|
1421 | } |
|
|
1422 | else |
|
|
1423 | return 0; |
984 | } |
1424 | } |
985 | |
1425 | |
986 | static void |
1426 | static void |
987 | api_schedule (void) |
1427 | api_schedule (void) |
988 | { |
1428 | { |
989 | dTHX; |
1429 | dTHX; |
990 | struct transfer_args ta; |
1430 | struct transfer_args ta; |
991 | |
1431 | |
992 | prepare_schedule (&ta); |
1432 | prepare_schedule (aTHX_ &ta); |
993 | TRANSFER (ta); |
1433 | TRANSFER (ta); |
994 | } |
1434 | } |
995 | |
1435 | |
996 | static void |
1436 | static int |
997 | api_cede (void) |
1437 | api_cede (void) |
998 | { |
1438 | { |
999 | dTHX; |
1439 | dTHX; |
1000 | struct transfer_args ta; |
1440 | struct transfer_args ta; |
1001 | |
1441 | |
1002 | prepare_cede (&ta); |
1442 | prepare_cede (aTHX_ &ta); |
|
|
1443 | |
|
|
1444 | if (expect_true (ta.prev != ta.next)) |
|
|
1445 | { |
1003 | TRANSFER (ta); |
1446 | TRANSFER (ta); |
|
|
1447 | return 1; |
|
|
1448 | } |
|
|
1449 | else |
|
|
1450 | return 0; |
1004 | } |
1451 | } |
1005 | |
1452 | |
|
|
1453 | static int |
|
|
1454 | api_cede_notself (void) |
|
|
1455 | { |
|
|
1456 | dTHX; |
|
|
1457 | struct transfer_args ta; |
|
|
1458 | |
|
|
1459 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1460 | { |
|
|
1461 | TRANSFER (ta); |
|
|
1462 | return 1; |
|
|
1463 | } |
|
|
1464 | else |
|
|
1465 | return 0; |
|
|
1466 | } |
|
|
1467 | |
|
|
1468 | static void |
|
|
1469 | api_trace (SV *coro_sv, int flags) |
|
|
1470 | { |
|
|
1471 | dTHX; |
|
|
1472 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1473 | |
|
|
1474 | if (flags & CC_TRACE) |
|
|
1475 | { |
|
|
1476 | if (!coro->cctx) |
|
|
1477 | coro->cctx = cctx_new (); |
|
|
1478 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1479 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1480 | |
|
|
1481 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1482 | } |
|
|
1483 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1484 | { |
|
|
1485 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1486 | |
|
|
1487 | if (coro->flags & CF_RUNNING) |
|
|
1488 | PL_runops = RUNOPS_DEFAULT; |
|
|
1489 | else |
|
|
1490 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1491 | } |
|
|
1492 | } |
|
|
1493 | |
1006 | MODULE = Coro::State PACKAGE = Coro::State |
1494 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1007 | |
1495 | |
1008 | PROTOTYPES: DISABLE |
1496 | PROTOTYPES: DISABLE |
1009 | |
1497 | |
1010 | BOOT: |
1498 | BOOT: |
1011 | { |
1499 | { |
1012 | #ifdef USE_ITHREADS |
1500 | #ifdef USE_ITHREADS |
1013 | MUTEX_INIT (&coro_mutex); |
1501 | MUTEX_INIT (&coro_mutex); |
1014 | #endif |
1502 | #endif |
1015 | BOOT_PAGESIZE; |
1503 | BOOT_PAGESIZE; |
1016 | |
1504 | |
|
|
1505 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1506 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1507 | |
|
|
1508 | hv_sig = coro_get_hv ("SIG", TRUE); |
|
|
1509 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
|
|
1510 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
|
|
1511 | |
|
|
1512 | if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
1513 | if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
1514 | |
1017 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1515 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1018 | |
1516 | |
1019 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1517 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1020 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1518 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1021 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1519 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1520 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1022 | |
1521 | |
1023 | main_mainstack = PL_mainstack; |
1522 | main_mainstack = PL_mainstack; |
|
|
1523 | main_top_env = PL_top_env; |
|
|
1524 | |
|
|
1525 | while (main_top_env->je_prev) |
|
|
1526 | main_top_env = main_top_env->je_prev; |
1024 | |
1527 | |
1025 | coroapi.ver = CORO_API_VERSION; |
1528 | coroapi.ver = CORO_API_VERSION; |
1026 | coroapi.transfer = api_transfer; |
1529 | coroapi.transfer = api_transfer; |
1027 | |
1530 | |
1028 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1531 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1035 | struct coro *coro; |
1538 | struct coro *coro; |
1036 | HV *hv; |
1539 | HV *hv; |
1037 | int i; |
1540 | int i; |
1038 | |
1541 | |
1039 | Newz (0, coro, 1, struct coro); |
1542 | Newz (0, coro, 1, struct coro); |
1040 | coro->args = newAV (); |
1543 | coro->args = newAV (); |
|
|
1544 | coro->flags = CF_NEW; |
1041 | |
1545 | |
|
|
1546 | if (coro_first) coro_first->prev = coro; |
|
|
1547 | coro->next = coro_first; |
|
|
1548 | coro_first = coro; |
|
|
1549 | |
1042 | hv = newHV (); |
1550 | coro->hv = hv = newHV (); |
1043 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1551 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1044 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1552 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1045 | |
1553 | |
|
|
1554 | av_extend (coro->args, items - 1); |
1046 | for (i = 1; i < items; i++) |
1555 | for (i = 1; i < items; i++) |
1047 | av_push (coro->args, newSVsv (ST (i))); |
1556 | av_push (coro->args, newSVsv (ST (i))); |
1048 | |
|
|
1049 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
1050 | /*coro->stack = 0;*/ |
|
|
1051 | } |
1557 | } |
1052 | OUTPUT: |
1558 | OUTPUT: |
1053 | RETVAL |
1559 | RETVAL |
1054 | |
1560 | |
|
|
1561 | # these not obviously related functions are all rolled into the same xs |
|
|
1562 | # function to increase chances that they all will call transfer with the same |
|
|
1563 | # stack offset |
1055 | void |
1564 | void |
1056 | _set_stacklevel (...) |
1565 | _set_stacklevel (...) |
1057 | ALIAS: |
1566 | ALIAS: |
1058 | Coro::State::transfer = 1 |
1567 | Coro::State::transfer = 1 |
1059 | Coro::schedule = 2 |
1568 | Coro::schedule = 2 |
1060 | Coro::cede = 3 |
1569 | Coro::cede = 3 |
1061 | Coro::Cont::yield = 4 |
1570 | Coro::cede_notself = 4 |
1062 | CODE: |
1571 | CODE: |
1063 | { |
1572 | { |
1064 | struct transfer_args ta; |
1573 | struct transfer_args ta; |
1065 | |
1574 | |
1066 | switch (ix) |
1575 | switch (ix) |
1067 | { |
1576 | { |
1068 | case 0: |
1577 | case 0: |
1069 | ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0))); |
1578 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1070 | ta.next = 0; |
1579 | ta.next = 0; |
1071 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1072 | break; |
1580 | break; |
1073 | |
1581 | |
1074 | case 1: |
1582 | case 1: |
1075 | if (items != 3) |
1583 | if (items != 2) |
1076 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1584 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1077 | |
1585 | |
1078 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1586 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1079 | break; |
1587 | break; |
1080 | |
1588 | |
1081 | case 2: |
1589 | case 2: |
1082 | prepare_schedule (&ta); |
1590 | prepare_schedule (aTHX_ &ta); |
1083 | break; |
1591 | break; |
1084 | |
1592 | |
1085 | case 3: |
1593 | case 3: |
1086 | prepare_cede (&ta); |
1594 | prepare_cede (aTHX_ &ta); |
1087 | break; |
1595 | break; |
1088 | |
1596 | |
1089 | case 4: |
1597 | case 4: |
1090 | { |
1598 | if (!prepare_cede_notself (aTHX_ &ta)) |
1091 | SV *yieldstack; |
1599 | XSRETURN_EMPTY; |
1092 | SV *sv; |
|
|
1093 | AV *defav = GvAV (PL_defgv); |
|
|
1094 | |
1600 | |
1095 | yieldstack = *hv_fetch ( |
|
|
1096 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1097 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1098 | 0 |
|
|
1099 | ); |
|
|
1100 | |
|
|
1101 | /* set up @_ -- ugly */ |
|
|
1102 | av_clear (defav); |
|
|
1103 | av_fill (defav, items - 1); |
|
|
1104 | while (items--) |
|
|
1105 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1106 | |
|
|
1107 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1108 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1109 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1110 | ta.flags = 0; |
|
|
1111 | SvREFCNT_dec (sv); |
|
|
1112 | } |
|
|
1113 | break; |
1601 | break; |
1114 | |
|
|
1115 | } |
1602 | } |
1116 | |
1603 | |
|
|
1604 | BARRIER; |
1117 | TRANSFER (ta); |
1605 | TRANSFER (ta); |
1118 | } |
|
|
1119 | |
1606 | |
1120 | void |
1607 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
1121 | _clone_state_from (SV *dst, SV *src) |
1608 | XSRETURN_YES; |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | bool |
|
|
1612 | _destroy (SV *coro_sv) |
1122 | CODE: |
1613 | CODE: |
1123 | { |
1614 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1124 | struct coro *coro_src = SvSTATE (src); |
1615 | OUTPUT: |
1125 | |
1616 | RETVAL |
1126 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1127 | |
|
|
1128 | ++coro_src->refcnt; |
|
|
1129 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1130 | } |
|
|
1131 | |
1617 | |
1132 | void |
1618 | void |
1133 | _exit (code) |
1619 | _exit (code) |
1134 | int code |
1620 | int code |
1135 | PROTOTYPE: $ |
1621 | PROTOTYPE: $ |
1136 | CODE: |
1622 | CODE: |
1137 | _exit (code); |
1623 | _exit (code); |
1138 | |
1624 | |
|
|
1625 | int |
|
|
1626 | cctx_stacksize (int new_stacksize = 0) |
|
|
1627 | CODE: |
|
|
1628 | RETVAL = coro_stacksize; |
|
|
1629 | if (new_stacksize) |
|
|
1630 | coro_stacksize = new_stacksize; |
|
|
1631 | OUTPUT: |
|
|
1632 | RETVAL |
|
|
1633 | |
|
|
1634 | int |
|
|
1635 | cctx_count () |
|
|
1636 | CODE: |
|
|
1637 | RETVAL = cctx_count; |
|
|
1638 | OUTPUT: |
|
|
1639 | RETVAL |
|
|
1640 | |
|
|
1641 | int |
|
|
1642 | cctx_idle () |
|
|
1643 | CODE: |
|
|
1644 | RETVAL = cctx_idle; |
|
|
1645 | OUTPUT: |
|
|
1646 | RETVAL |
|
|
1647 | |
|
|
1648 | void |
|
|
1649 | list () |
|
|
1650 | PPCODE: |
|
|
1651 | { |
|
|
1652 | struct coro *coro; |
|
|
1653 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1654 | if (coro->hv) |
|
|
1655 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1656 | } |
|
|
1657 | |
|
|
1658 | void |
|
|
1659 | call (Coro::State coro, SV *coderef) |
|
|
1660 | ALIAS: |
|
|
1661 | eval = 1 |
|
|
1662 | CODE: |
|
|
1663 | { |
|
|
1664 | if (coro->mainstack) |
|
|
1665 | { |
|
|
1666 | struct coro temp; |
|
|
1667 | |
|
|
1668 | if (!(coro->flags & CF_RUNNING)) |
|
|
1669 | { |
|
|
1670 | save_perl (aTHX_ &temp); |
|
|
1671 | load_perl (aTHX_ coro); |
|
|
1672 | } |
|
|
1673 | |
|
|
1674 | { |
|
|
1675 | dSP; |
|
|
1676 | ENTER; |
|
|
1677 | SAVETMPS; |
|
|
1678 | PUSHMARK (SP); |
|
|
1679 | PUTBACK; |
|
|
1680 | |
|
|
1681 | if (ix) |
|
|
1682 | eval_sv (coderef, 0); |
|
|
1683 | else |
|
|
1684 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1685 | |
|
|
1686 | SPAGAIN; |
|
|
1687 | FREETMPS; |
|
|
1688 | LEAVE; |
|
|
1689 | PUTBACK; |
|
|
1690 | } |
|
|
1691 | |
|
|
1692 | if (!(coro->flags & CF_RUNNING)) |
|
|
1693 | { |
|
|
1694 | save_perl (aTHX_ coro); |
|
|
1695 | load_perl (aTHX_ &temp); |
|
|
1696 | } |
|
|
1697 | } |
|
|
1698 | } |
|
|
1699 | |
|
|
1700 | SV * |
|
|
1701 | is_ready (Coro::State coro) |
|
|
1702 | PROTOTYPE: $ |
|
|
1703 | ALIAS: |
|
|
1704 | is_ready = CF_READY |
|
|
1705 | is_running = CF_RUNNING |
|
|
1706 | is_new = CF_NEW |
|
|
1707 | is_destroyed = CF_DESTROYED |
|
|
1708 | CODE: |
|
|
1709 | RETVAL = boolSV (coro->flags & ix); |
|
|
1710 | OUTPUT: |
|
|
1711 | RETVAL |
|
|
1712 | |
|
|
1713 | void |
|
|
1714 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1715 | |
|
|
1716 | SV * |
|
|
1717 | has_stack (Coro::State coro) |
|
|
1718 | PROTOTYPE: $ |
|
|
1719 | CODE: |
|
|
1720 | RETVAL = boolSV (!!coro->cctx); |
|
|
1721 | OUTPUT: |
|
|
1722 | RETVAL |
|
|
1723 | |
|
|
1724 | int |
|
|
1725 | is_traced (Coro::State coro) |
|
|
1726 | PROTOTYPE: $ |
|
|
1727 | CODE: |
|
|
1728 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1729 | OUTPUT: |
|
|
1730 | RETVAL |
|
|
1731 | |
|
|
1732 | IV |
|
|
1733 | rss (Coro::State coro) |
|
|
1734 | PROTOTYPE: $ |
|
|
1735 | ALIAS: |
|
|
1736 | usecount = 1 |
|
|
1737 | CODE: |
|
|
1738 | switch (ix) |
|
|
1739 | { |
|
|
1740 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1741 | case 1: RETVAL = coro->usecount; break; |
|
|
1742 | } |
|
|
1743 | OUTPUT: |
|
|
1744 | RETVAL |
|
|
1745 | |
|
|
1746 | |
1139 | MODULE = Coro::State PACKAGE = Coro |
1747 | MODULE = Coro::State PACKAGE = Coro |
1140 | |
1748 | |
1141 | BOOT: |
1749 | BOOT: |
1142 | { |
1750 | { |
1143 | int i; |
1751 | int i; |
1144 | |
1752 | |
|
|
1753 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1754 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1755 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
|
|
1756 | |
|
|
1757 | coro_current = coro_get_sv ("Coro::current", FALSE); |
|
|
1758 | SvREADONLY_on (coro_current); |
|
|
1759 | |
1145 | coro_stash = gv_stashpv ("Coro", TRUE); |
1760 | coro_stash = gv_stashpv ("Coro", TRUE); |
1146 | |
1761 | |
1147 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1762 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1148 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1763 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1149 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1764 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1150 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1765 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1151 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1766 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1152 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1767 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1153 | |
1768 | |
1154 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1155 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1156 | |
|
|
1157 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1769 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1158 | coro_ready[i] = newAV (); |
1770 | coro_ready[i] = newAV (); |
1159 | |
1771 | |
1160 | { |
1772 | { |
1161 | SV *sv = perl_get_sv("Coro::API", 1); |
1773 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1774 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1162 | |
1775 | |
1163 | coroapi.schedule = api_schedule; |
1776 | coroapi.schedule = api_schedule; |
1164 | coroapi.cede = api_cede; |
1777 | coroapi.cede = api_cede; |
|
|
1778 | coroapi.cede_notself = api_cede_notself; |
1165 | coroapi.ready = api_ready; |
1779 | coroapi.ready = api_ready; |
|
|
1780 | coroapi.is_ready = api_is_ready; |
1166 | coroapi.nready = &coro_nready; |
1781 | coroapi.nready = &coro_nready; |
1167 | coroapi.current = coro_current; |
1782 | coroapi.current = coro_current; |
1168 | |
1783 | |
1169 | GCoroAPI = &coroapi; |
1784 | GCoroAPI = &coroapi; |
1170 | sv_setiv (sv, (IV)&coroapi); |
1785 | sv_setiv (sv, (IV)&coroapi); |
1171 | SvREADONLY_on (sv); |
1786 | SvREADONLY_on (sv); |
1172 | } |
1787 | } |
1173 | } |
1788 | } |
|
|
1789 | |
|
|
1790 | void |
|
|
1791 | _set_current (SV *current) |
|
|
1792 | PROTOTYPE: $ |
|
|
1793 | CODE: |
|
|
1794 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1795 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1174 | |
1796 | |
1175 | int |
1797 | int |
1176 | prio (Coro::State coro, int newprio = 0) |
1798 | prio (Coro::State coro, int newprio = 0) |
1177 | ALIAS: |
1799 | ALIAS: |
1178 | nice = 1 |
1800 | nice = 1 |
… | |
… | |
1181 | RETVAL = coro->prio; |
1803 | RETVAL = coro->prio; |
1182 | |
1804 | |
1183 | if (items > 1) |
1805 | if (items > 1) |
1184 | { |
1806 | { |
1185 | if (ix) |
1807 | if (ix) |
1186 | newprio += coro->prio; |
1808 | newprio = coro->prio - newprio; |
1187 | |
1809 | |
1188 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1810 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1189 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1811 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1190 | |
1812 | |
1191 | coro->prio = newprio; |
1813 | coro->prio = newprio; |
1192 | } |
1814 | } |
1193 | } |
1815 | } |
|
|
1816 | OUTPUT: |
|
|
1817 | RETVAL |
1194 | |
1818 | |
1195 | void |
1819 | SV * |
1196 | ready (SV *self) |
1820 | ready (SV *self) |
1197 | PROTOTYPE: $ |
1821 | PROTOTYPE: $ |
1198 | CODE: |
1822 | CODE: |
1199 | api_ready (self); |
1823 | RETVAL = boolSV (api_ready (self)); |
|
|
1824 | OUTPUT: |
|
|
1825 | RETVAL |
1200 | |
1826 | |
1201 | int |
1827 | int |
1202 | nready (...) |
1828 | nready (...) |
1203 | PROTOTYPE: |
1829 | PROTOTYPE: |
1204 | CODE: |
1830 | CODE: |
1205 | RETVAL = coro_nready; |
1831 | RETVAL = coro_nready; |
1206 | OUTPUT: |
1832 | OUTPUT: |
1207 | RETVAL |
1833 | RETVAL |
1208 | |
1834 | |
|
|
1835 | void |
|
|
1836 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1837 | PROTOTYPE: $;$ |
|
|
1838 | CODE: |
|
|
1839 | SvREFCNT_dec (self->throw); |
|
|
1840 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1841 | |
|
|
1842 | # for async_pool speedup |
|
|
1843 | void |
|
|
1844 | _pool_1 (SV *cb) |
|
|
1845 | CODE: |
|
|
1846 | { |
|
|
1847 | struct coro *coro = SvSTATE (coro_current); |
|
|
1848 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1849 | AV *defav = GvAV (PL_defgv); |
|
|
1850 | SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); |
|
|
1851 | AV *invoke_av; |
|
|
1852 | int i, len; |
|
|
1853 | |
|
|
1854 | if (!invoke) |
|
|
1855 | croak ("\3async_pool terminate\2\n"); |
|
|
1856 | |
|
|
1857 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1858 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1859 | |
|
|
1860 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1861 | newSVpvn (strpair ("[async_pool]")), 0); |
|
|
1862 | |
|
|
1863 | invoke_av = (AV *)SvRV (invoke); |
|
|
1864 | len = av_len (invoke_av); |
|
|
1865 | |
|
|
1866 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1867 | |
|
|
1868 | if (len > 0) |
|
|
1869 | { |
|
|
1870 | av_fill (defav, len - 1); |
|
|
1871 | for (i = 0; i < len; ++i) |
|
|
1872 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1873 | } |
|
|
1874 | |
|
|
1875 | SvREFCNT_dec (invoke); |
|
|
1876 | } |
|
|
1877 | |
|
|
1878 | void |
|
|
1879 | _pool_2 (SV *cb) |
|
|
1880 | CODE: |
|
|
1881 | { |
|
|
1882 | struct coro *coro = SvSTATE (coro_current); |
|
|
1883 | |
|
|
1884 | sv_setsv (cb, &PL_sv_undef); |
|
|
1885 | |
|
|
1886 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1887 | coro->saved_deffh = 0; |
|
|
1888 | |
|
|
1889 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1890 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1891 | croak ("\3async_pool terminate\2\n"); |
|
|
1892 | |
|
|
1893 | av_clear (GvAV (PL_defgv)); |
|
|
1894 | hv_store ((HV *)SvRV (coro_current), strpair ("desc"), |
|
|
1895 | newSVpvn (strpair ("[async_pool idle]")), 0); |
|
|
1896 | |
|
|
1897 | coro->prio = 0; |
|
|
1898 | |
|
|
1899 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1900 | api_trace (coro_current, 0); |
|
|
1901 | |
|
|
1902 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1903 | } |
|
|
1904 | |
|
|
1905 | |
1209 | MODULE = Coro::State PACKAGE = Coro::AIO |
1906 | MODULE = Coro::State PACKAGE = Coro::AIO |
1210 | |
1907 | |
1211 | SV * |
1908 | SV * |
1212 | _get_state () |
1909 | _get_state () |
1213 | CODE: |
1910 | CODE: |
1214 | { |
1911 | { |
1215 | struct { |
1912 | struct io_state *data; |
1216 | int errorno; |
|
|
1217 | int laststype; |
|
|
1218 | int laststatval; |
|
|
1219 | Stat_t statcache; |
|
|
1220 | } data; |
|
|
1221 | |
1913 | |
|
|
1914 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1915 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1916 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1917 | SvPOK_only (RETVAL); |
|
|
1918 | |
1222 | data.errorno = errno; |
1919 | data->errorno = errno; |
1223 | data.laststype = PL_laststype; |
1920 | data->laststype = PL_laststype; |
1224 | data.laststatval = PL_laststatval; |
1921 | data->laststatval = PL_laststatval; |
1225 | data.statcache = PL_statcache; |
1922 | data->statcache = PL_statcache; |
1226 | |
|
|
1227 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1228 | } |
1923 | } |
1229 | OUTPUT: |
1924 | OUTPUT: |
1230 | RETVAL |
1925 | RETVAL |
1231 | |
1926 | |
1232 | void |
1927 | void |
1233 | _set_state (char *data_) |
1928 | _set_state (char *data_) |
1234 | PROTOTYPE: $ |
1929 | PROTOTYPE: $ |
1235 | CODE: |
1930 | CODE: |
1236 | { |
1931 | { |
1237 | struct { |
1932 | struct io_state *data = (void *)data_; |
1238 | int errorno; |
|
|
1239 | int laststype; |
|
|
1240 | int laststatval; |
|
|
1241 | Stat_t statcache; |
|
|
1242 | } *data = (void *)data_; |
|
|
1243 | |
1933 | |
1244 | errno = data->errorno; |
1934 | errno = data->errorno; |
1245 | PL_laststype = data->laststype; |
1935 | PL_laststype = data->laststype; |
1246 | PL_laststatval = data->laststatval; |
1936 | PL_laststatval = data->laststatval; |
1247 | PL_statcache = data->statcache; |
1937 | PL_statcache = data->statcache; |
1248 | } |
1938 | } |
|
|
1939 | |