|
|
1 | #include "libcoro/coro.c" |
|
|
2 | |
1 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
2 | |
4 | #define PERL_EXT |
3 | #include "libcoro/coro.c" |
|
|
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" |
8 | |
9 | |
9 | #include "patchlevel.h" |
10 | #include "patchlevel.h" |
10 | |
11 | |
11 | #if PERL_VERSION < 6 |
12 | #include <stdio.h> |
|
|
13 | #include <errno.h> |
|
|
14 | #include <assert.h> |
|
|
15 | |
|
|
16 | #ifdef WIN32 |
|
|
17 | # undef setjmp |
|
|
18 | # undef longjmp |
|
|
19 | # undef _exit |
|
|
20 | # define setjmp _setjmp // deep magic, don't ask |
|
|
21 | #else |
|
|
22 | # include <inttypes.h> /* most portable stdint.h */ |
|
|
23 | #endif |
|
|
24 | |
|
|
25 | #ifdef HAVE_MMAP |
|
|
26 | # include <unistd.h> |
|
|
27 | # include <sys/mman.h> |
|
|
28 | # ifndef MAP_ANONYMOUS |
|
|
29 | # ifdef MAP_ANON |
|
|
30 | # define MAP_ANONYMOUS MAP_ANON |
|
|
31 | # else |
|
|
32 | # undef HAVE_MMAP |
|
|
33 | # endif |
|
|
34 | # endif |
|
|
35 | # include <limits.h> |
|
|
36 | # ifndef PAGESIZE |
|
|
37 | # define PAGESIZE pagesize |
|
|
38 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
|
|
39 | static long pagesize; |
|
|
40 | # else |
|
|
41 | # define BOOT_PAGESIZE (void)0 |
|
|
42 | # endif |
|
|
43 | #else |
|
|
44 | # define PAGESIZE 0 |
|
|
45 | # define BOOT_PAGESIZE (void)0 |
|
|
46 | #endif |
|
|
47 | |
|
|
48 | #if CORO_USE_VALGRIND |
|
|
49 | # include <valgrind/valgrind.h> |
|
|
50 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
|
|
51 | #else |
|
|
52 | # define REGISTER_STACK(cctx,start,end) |
|
|
53 | #endif |
|
|
54 | |
|
|
55 | /* the maximum number of idle cctx that will be pooled */ |
|
|
56 | #define MAX_IDLE_CCTX 8 |
|
|
57 | |
|
|
58 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
|
|
59 | (PERL_REVISION > (a) \ |
|
|
60 | || (PERL_REVISION == (a) \ |
|
|
61 | && (PERL_VERSION > (b) \ |
|
|
62 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
|
|
63 | |
|
|
64 | #if !PERL_VERSION_ATLEAST (5,6,0) |
12 | # ifndef PL_ppaddr |
65 | # ifndef PL_ppaddr |
13 | # define PL_ppaddr ppaddr |
66 | # define PL_ppaddr ppaddr |
14 | # endif |
67 | # endif |
15 | # ifndef call_sv |
68 | # ifndef call_sv |
16 | # define call_sv perl_call_sv |
69 | # define call_sv perl_call_sv |
… | |
… | |
27 | # ifndef IS_PADCONST |
80 | # ifndef IS_PADCONST |
28 | # define IS_PADCONST(v) 0 |
81 | # define IS_PADCONST(v) 0 |
29 | # endif |
82 | # endif |
30 | #endif |
83 | #endif |
31 | |
84 | |
32 | #include <stdio.h> |
85 | /* 5.8.8 */ |
33 | #include <errno.h> |
86 | #ifndef GV_NOTQUAL |
|
|
87 | # define GV_NOTQUAL 0 |
|
|
88 | #endif |
|
|
89 | #ifndef newSV |
|
|
90 | # define newSV(l) NEWSV(0,l) |
|
|
91 | #endif |
|
|
92 | |
|
|
93 | /* 5.11 */ |
|
|
94 | #ifndef CxHASARGS |
|
|
95 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
|
|
96 | #endif |
|
|
97 | |
|
|
98 | /* 5.8.7 */ |
|
|
99 | #ifndef SvRV_set |
|
|
100 | # define SvRV_set(s,v) SvRV(s) = (v) |
|
|
101 | #endif |
34 | |
102 | |
35 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
103 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
36 | # undef STACKGUARD |
104 | # undef CORO_STACKGUARD |
37 | #endif |
|
|
38 | |
|
|
39 | #ifndef STACKGUARD |
|
|
40 | # define STACKGUARD 0 |
|
|
41 | #endif |
|
|
42 | |
|
|
43 | #ifdef HAVE_MMAP |
|
|
44 | # include <unistd.h> |
|
|
45 | # include <sys/mman.h> |
|
|
46 | # ifndef MAP_ANONYMOUS |
|
|
47 | # ifdef MAP_ANON |
|
|
48 | # define MAP_ANONYMOUS MAP_ANON |
|
|
49 | # else |
|
|
50 | # undef HAVE_MMAP |
|
|
51 | # endif |
|
|
52 | # endif |
105 | #endif |
53 | # include <limits.h> |
106 | |
54 | # ifndef PAGESIZE |
107 | #ifndef CORO_STACKGUARD |
55 | # define PAGESIZE pagesize |
108 | # define CORO_STACKGUARD 0 |
56 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
|
|
57 | static long pagesize; |
|
|
58 | # else |
|
|
59 | # define BOOT_PAGESIZE |
|
|
60 | # endif |
109 | #endif |
61 | #endif |
|
|
62 | |
110 | |
63 | /* The next macro should declare a variable stacklevel that contains and approximation |
111 | /* prefer perl internal functions over our own? */ |
64 | * to the current C stack pointer. Its property is that it changes with each call |
112 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
65 | * and should be unique. */ |
113 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
|
|
114 | #endif |
|
|
115 | |
|
|
116 | /* The next macros try to return the current stack pointer, in an as |
|
|
117 | * portable way as possible. */ |
66 | #define dSTACKLEVEL int stacklevel |
118 | #define dSTACKLEVEL volatile char stacklevel |
67 | #define STACKLEVEL ((void *)&stacklevel) |
119 | #define STACKLEVEL ((void *)&stacklevel) |
68 | |
120 | |
69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
121 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
70 | |
122 | |
71 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
123 | #if __GNUC__ >= 3 |
|
|
124 | # define attribute(x) __attribute__(x) |
|
|
125 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
|
|
126 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
127 | #else |
|
|
128 | # define attribute(x) |
|
|
129 | # define BARRIER |
|
|
130 | # define expect(expr,value) (expr) |
|
|
131 | #endif |
|
|
132 | |
|
|
133 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
134 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
135 | |
|
|
136 | #define NOINLINE attribute ((noinline)) |
72 | |
137 | |
73 | #include "CoroAPI.h" |
138 | #include "CoroAPI.h" |
74 | |
|
|
75 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
|
|
76 | |
139 | |
77 | #ifdef USE_ITHREADS |
140 | #ifdef USE_ITHREADS |
78 | static perl_mutex coro_mutex; |
141 | static perl_mutex coro_mutex; |
79 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
142 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
80 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
143 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
81 | #else |
144 | #else |
82 | # define LOCK (void)0 |
145 | # define LOCK (void)0 |
83 | # define UNLOCK (void)0 |
146 | # define UNLOCK (void)0 |
84 | #endif |
147 | #endif |
85 | |
148 | |
|
|
149 | /* helper storage struct for Coro::AIO */ |
|
|
150 | struct io_state |
|
|
151 | { |
|
|
152 | int errorno; |
|
|
153 | I32 laststype; |
|
|
154 | int laststatval; |
|
|
155 | Stat_t statcache; |
|
|
156 | }; |
|
|
157 | |
|
|
158 | static size_t coro_stacksize = CORO_STACKSIZE; |
86 | static struct CoroAPI coroapi; |
159 | static struct CoroAPI coroapi; |
87 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
160 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
|
|
161 | static JMPENV *main_top_env; |
88 | static HV *coro_state_stash, *coro_stash; |
162 | static HV *coro_state_stash, *coro_stash; |
89 | static SV *coro_mortal; /* will be freed after next transfer */ |
163 | static volatile SV *coro_mortal; /* will be freed after next transfer */ |
|
|
164 | |
|
|
165 | static GV *irsgv; /* $/ */ |
|
|
166 | static GV *stdoutgv; /* *STDOUT */ |
|
|
167 | static SV *rv_diehook; |
|
|
168 | static SV *rv_warnhook; |
|
|
169 | static HV *hv_sig; /* %SIG */ |
|
|
170 | |
|
|
171 | /* async_pool helper stuff */ |
|
|
172 | static SV *sv_pool_rss; |
|
|
173 | static SV *sv_pool_size; |
|
|
174 | static AV *av_async_pool; |
|
|
175 | |
|
|
176 | /* Coro::AnyEvent */ |
|
|
177 | static SV *sv_activity; |
|
|
178 | |
|
|
179 | static struct coro_cctx *cctx_first; |
|
|
180 | static int cctx_count, cctx_idle; |
|
|
181 | |
|
|
182 | enum { |
|
|
183 | CC_MAPPED = 0x01, |
|
|
184 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
|
|
185 | CC_TRACE = 0x04, |
|
|
186 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
|
|
187 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
|
|
188 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
|
|
189 | }; |
90 | |
190 | |
91 | /* this is a structure representing a c-level coroutine */ |
191 | /* this is a structure representing a c-level coroutine */ |
92 | typedef struct coro_stack { |
192 | typedef struct coro_cctx { |
93 | struct coro_stack *next; |
193 | struct coro_cctx *next; |
94 | |
194 | |
95 | void *idle_sp; /* original stacklevel when coroutine was created */ |
195 | /* the stack */ |
96 | void *sptr; |
196 | void *sptr; |
97 | long ssize; /* positive == mmap, otherwise malloc */ |
197 | size_t ssize; |
98 | |
198 | |
99 | /* cpu state */ |
199 | /* cpu state */ |
|
|
200 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
|
|
201 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
|
|
202 | JMPENV *top_env; |
100 | coro_context cctx; |
203 | coro_context cctx; |
101 | JMPENV *top_env; |
|
|
102 | } coro_stack; |
|
|
103 | |
204 | |
104 | /* the (fake) coro_stack representing the main program */ |
205 | #if CORO_USE_VALGRIND |
105 | static coro_stack *main_stack; |
206 | int valgrind_id; |
|
|
207 | #endif |
|
|
208 | unsigned char flags; |
|
|
209 | } coro_cctx; |
|
|
210 | |
|
|
211 | enum { |
|
|
212 | CF_RUNNING = 0x0001, /* coroutine is running */ |
|
|
213 | CF_READY = 0x0002, /* coroutine is ready */ |
|
|
214 | CF_NEW = 0x0004, /* has never been switched to */ |
|
|
215 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
|
|
216 | }; |
|
|
217 | |
|
|
218 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
|
|
219 | typedef struct { |
|
|
220 | SV *defsv; |
|
|
221 | AV *defav; |
|
|
222 | SV *errsv; |
|
|
223 | SV *irsgv; |
|
|
224 | #define VAR(name,type) type name; |
|
|
225 | # include "state.h" |
|
|
226 | #undef VAR |
|
|
227 | } perl_slots; |
|
|
228 | |
|
|
229 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
106 | |
230 | |
107 | /* this is a structure representing a perl-level coroutine */ |
231 | /* this is a structure representing a perl-level coroutine */ |
108 | struct coro { |
232 | struct coro { |
109 | /* the c coroutine allocated to this perl coroutine, if any */ |
233 | /* the c coroutine allocated to this perl coroutine, if any */ |
110 | coro_stack *stack; |
234 | coro_cctx *cctx; |
111 | |
235 | |
112 | /* data associated with this coroutine (initial args) */ |
236 | /* process data */ |
113 | AV *args; |
|
|
114 | int refcnt; |
|
|
115 | |
|
|
116 | /* optionally saved, might be zero */ |
|
|
117 | AV *defav; |
|
|
118 | SV *defsv; |
|
|
119 | SV *errsv; |
|
|
120 | |
|
|
121 | /* saved global state not related to stacks */ |
|
|
122 | U8 dowarn; |
|
|
123 | I32 in_eval; |
|
|
124 | |
|
|
125 | /* the stacks and related info (callchain etc..) */ |
|
|
126 | PERL_SI *curstackinfo; |
|
|
127 | AV *curstack; |
|
|
128 | AV *mainstack; |
237 | AV *mainstack; |
129 | SV **stack_sp; |
238 | perl_slots *slot; /* basically the saved sp */ |
130 | OP *op; |
239 | |
131 | SV **curpad; |
240 | AV *args; /* data associated with this coroutine (initial args) */ |
132 | AV *comppad; |
241 | int refcnt; /* coroutines are refcounted, yes */ |
133 | CV *compcv; |
242 | int flags; /* CF_ flags */ |
134 | SV **stack_base; |
243 | HV *hv; /* the perl hash associated with this coro, if any */ |
135 | SV **stack_max; |
244 | |
136 | SV **tmps_stack; |
245 | /* statistics */ |
137 | I32 tmps_floor; |
246 | int usecount; /* number of transfers to this coro */ |
138 | I32 tmps_ix; |
|
|
139 | I32 tmps_max; |
|
|
140 | I32 *markstack; |
|
|
141 | I32 *markstack_ptr; |
|
|
142 | I32 *markstack_max; |
|
|
143 | I32 *scopestack; |
|
|
144 | I32 scopestack_ix; |
|
|
145 | I32 scopestack_max; |
|
|
146 | ANY *savestack; |
|
|
147 | I32 savestack_ix; |
|
|
148 | I32 savestack_max; |
|
|
149 | OP **retstack; |
|
|
150 | I32 retstack_ix; |
|
|
151 | I32 retstack_max; |
|
|
152 | PMOP *curpm; |
|
|
153 | COP *curcop; |
|
|
154 | |
247 | |
155 | /* coro process data */ |
248 | /* coro process data */ |
156 | int prio; |
249 | int prio; |
|
|
250 | SV *throw; /* exception to be thrown */ |
|
|
251 | |
|
|
252 | /* async_pool */ |
|
|
253 | SV *saved_deffh; |
|
|
254 | |
|
|
255 | /* linked list */ |
|
|
256 | struct coro *next, *prev; |
157 | }; |
257 | }; |
158 | |
258 | |
159 | typedef struct coro *Coro__State; |
259 | typedef struct coro *Coro__State; |
160 | typedef struct coro *Coro__State_or_hashref; |
260 | typedef struct coro *Coro__State_or_hashref; |
161 | |
261 | |
|
|
262 | /** Coro ********************************************************************/ |
|
|
263 | |
|
|
264 | #define PRIO_MAX 3 |
|
|
265 | #define PRIO_HIGH 1 |
|
|
266 | #define PRIO_NORMAL 0 |
|
|
267 | #define PRIO_LOW -1 |
|
|
268 | #define PRIO_IDLE -3 |
|
|
269 | #define PRIO_MIN -4 |
|
|
270 | |
|
|
271 | /* for Coro.pm */ |
|
|
272 | static SV *coro_current; |
|
|
273 | static SV *coro_readyhook; |
|
|
274 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
275 | static int coro_nready; |
|
|
276 | static struct coro *coro_first; |
|
|
277 | |
|
|
278 | /** lowlevel stuff **********************************************************/ |
|
|
279 | |
|
|
280 | static SV * |
|
|
281 | coro_get_sv (pTHX_ const char *name, int create) |
|
|
282 | { |
|
|
283 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
284 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
285 | get_sv (name, create); |
|
|
286 | #endif |
|
|
287 | return get_sv (name, create); |
|
|
288 | } |
|
|
289 | |
|
|
290 | static AV * |
|
|
291 | coro_get_av (pTHX_ const char *name, int create) |
|
|
292 | { |
|
|
293 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
294 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
295 | get_av (name, create); |
|
|
296 | #endif |
|
|
297 | return get_av (name, create); |
|
|
298 | } |
|
|
299 | |
|
|
300 | static HV * |
|
|
301 | coro_get_hv (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_hv (name, create); |
|
|
306 | #endif |
|
|
307 | return get_hv (name, create); |
|
|
308 | } |
|
|
309 | |
162 | static AV * |
310 | static AV * |
163 | coro_clone_padlist (pTHX_ CV *cv) |
311 | coro_clone_padlist (pTHX_ CV *cv) |
164 | { |
312 | { |
165 | AV *padlist = CvPADLIST (cv); |
313 | AV *padlist = CvPADLIST (cv); |
166 | AV *newpadlist, *newpad; |
314 | AV *newpadlist, *newpad; |
167 | |
315 | |
168 | newpadlist = newAV (); |
316 | newpadlist = newAV (); |
169 | AvREAL_off (newpadlist); |
317 | AvREAL_off (newpadlist); |
170 | #if PERL_VERSION < 9 |
318 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
319 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
320 | #else |
171 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
321 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
172 | #else |
|
|
173 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
174 | #endif |
322 | #endif |
175 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
323 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
176 | --AvFILLp (padlist); |
324 | --AvFILLp (padlist); |
177 | |
325 | |
178 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
326 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
… | |
… | |
213 | |
361 | |
214 | /* casting is fun. */ |
362 | /* casting is fun. */ |
215 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
363 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
216 | free_padlist (aTHX_ padlist); |
364 | free_padlist (aTHX_ padlist); |
217 | |
365 | |
218 | SvREFCNT_dec (av); |
|
|
219 | |
|
|
220 | return 0; |
366 | return 0; |
221 | } |
367 | } |
222 | |
368 | |
223 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
369 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
370 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
224 | |
371 | |
225 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
372 | static MGVTBL coro_cv_vtbl = { |
|
|
373 | 0, 0, 0, 0, |
|
|
374 | coro_cv_free |
|
|
375 | }; |
|
|
376 | |
|
|
377 | #define CORO_MAGIC(sv,type) \ |
|
|
378 | SvMAGIC (sv) \ |
|
|
379 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
380 | ? SvMAGIC (sv) \ |
|
|
381 | : mg_find (sv, type) \ |
|
|
382 | : 0 |
|
|
383 | |
|
|
384 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
385 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
386 | |
|
|
387 | static struct coro * |
|
|
388 | SvSTATE_ (pTHX_ SV *coro) |
|
|
389 | { |
|
|
390 | HV *stash; |
|
|
391 | MAGIC *mg; |
|
|
392 | |
|
|
393 | if (SvROK (coro)) |
|
|
394 | coro = SvRV (coro); |
|
|
395 | |
|
|
396 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
397 | croak ("Coro::State object required"); |
|
|
398 | |
|
|
399 | stash = SvSTASH (coro); |
|
|
400 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
401 | { |
|
|
402 | /* very slow, but rare, check */ |
|
|
403 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
404 | croak ("Coro::State object required"); |
|
|
405 | } |
|
|
406 | |
|
|
407 | mg = CORO_MAGIC_state (coro); |
|
|
408 | return (struct coro *)mg->mg_ptr; |
|
|
409 | } |
|
|
410 | |
|
|
411 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
226 | |
412 | |
227 | /* the next two functions merely cache the padlists */ |
413 | /* the next two functions merely cache the padlists */ |
228 | static void |
414 | static void |
229 | get_padlist (pTHX_ CV *cv) |
415 | get_padlist (pTHX_ CV *cv) |
230 | { |
416 | { |
231 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
417 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
418 | AV *av; |
232 | |
419 | |
233 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
420 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
234 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
421 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
235 | else |
422 | else |
236 | { |
423 | { |
237 | #if 0 |
424 | #if CORO_PREFER_PERL_FUNCTIONS |
238 | /* this should work - but it doesn't :( */ |
425 | /* this is probably cleaner, but also slower? */ |
239 | CV *cp = Perl_cv_clone (aTHX_ cv); |
426 | CV *cp = Perl_cv_clone (cv); |
240 | CvPADLIST (cv) = CvPADLIST (cp); |
427 | CvPADLIST (cv) = CvPADLIST (cp); |
241 | CvPADLIST (cp) = 0; |
428 | CvPADLIST (cp) = 0; |
242 | SvREFCNT_dec (cp); |
429 | SvREFCNT_dec (cp); |
243 | #else |
430 | #else |
244 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
431 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
247 | } |
434 | } |
248 | |
435 | |
249 | static void |
436 | static void |
250 | put_padlist (pTHX_ CV *cv) |
437 | put_padlist (pTHX_ CV *cv) |
251 | { |
438 | { |
252 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
439 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
440 | AV *av; |
253 | |
441 | |
254 | if (!mg) |
442 | if (expect_false (!mg)) |
255 | { |
443 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
256 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
257 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
258 | mg->mg_virtual = &vtbl_coro; |
|
|
259 | mg->mg_obj = (SV *)newAV (); |
|
|
260 | } |
|
|
261 | |
444 | |
262 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
445 | av = (AV *)mg->mg_obj; |
263 | } |
|
|
264 | |
446 | |
265 | #define SB do { |
447 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
266 | #define SE } while (0) |
448 | av_extend (av, AvMAX (av) + 1); |
267 | |
449 | |
268 | #define LOAD(state) load_state(aTHX_ (state)); |
450 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
269 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
451 | } |
270 | |
452 | |
271 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
453 | /** load & save, init *******************************************************/ |
272 | |
454 | |
273 | static void |
455 | static void |
274 | load_state(pTHX_ Coro__State c) |
456 | load_perl (pTHX_ Coro__State c) |
275 | { |
457 | { |
276 | PL_dowarn = c->dowarn; |
458 | perl_slots *slot = c->slot; |
277 | PL_in_eval = c->in_eval; |
459 | c->slot = 0; |
278 | |
460 | |
279 | PL_curstackinfo = c->curstackinfo; |
|
|
280 | PL_curstack = c->curstack; |
|
|
281 | PL_mainstack = c->mainstack; |
461 | PL_mainstack = c->mainstack; |
282 | PL_stack_sp = c->stack_sp; |
|
|
283 | PL_op = c->op; |
|
|
284 | PL_curpad = c->curpad; |
|
|
285 | PL_comppad = c->comppad; |
|
|
286 | PL_compcv = c->compcv; |
|
|
287 | PL_stack_base = c->stack_base; |
|
|
288 | PL_stack_max = c->stack_max; |
|
|
289 | PL_tmps_stack = c->tmps_stack; |
|
|
290 | PL_tmps_floor = c->tmps_floor; |
|
|
291 | PL_tmps_ix = c->tmps_ix; |
|
|
292 | PL_tmps_max = c->tmps_max; |
|
|
293 | PL_markstack = c->markstack; |
|
|
294 | PL_markstack_ptr = c->markstack_ptr; |
|
|
295 | PL_markstack_max = c->markstack_max; |
|
|
296 | PL_scopestack = c->scopestack; |
|
|
297 | PL_scopestack_ix = c->scopestack_ix; |
|
|
298 | PL_scopestack_max = c->scopestack_max; |
|
|
299 | PL_savestack = c->savestack; |
|
|
300 | PL_savestack_ix = c->savestack_ix; |
|
|
301 | PL_savestack_max = c->savestack_max; |
|
|
302 | #if PERL_VERSION < 9 |
|
|
303 | PL_retstack = c->retstack; |
|
|
304 | PL_retstack_ix = c->retstack_ix; |
|
|
305 | PL_retstack_max = c->retstack_max; |
|
|
306 | #endif |
|
|
307 | PL_curpm = c->curpm; |
|
|
308 | PL_curcop = c->curcop; |
|
|
309 | |
462 | |
310 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
463 | GvSV (PL_defgv) = slot->defsv; |
311 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
464 | GvAV (PL_defgv) = slot->defav; |
312 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
465 | GvSV (PL_errgv) = slot->errsv; |
|
|
466 | GvSV (irsgv) = slot->irsgv; |
|
|
467 | |
|
|
468 | #define VAR(name,type) PL_ ## name = slot->name; |
|
|
469 | # include "state.h" |
|
|
470 | #undef VAR |
313 | |
471 | |
314 | { |
472 | { |
315 | dSP; |
473 | dSP; |
|
|
474 | |
316 | CV *cv; |
475 | CV *cv; |
317 | |
476 | |
318 | /* now do the ugly restore mess */ |
477 | /* now do the ugly restore mess */ |
319 | while ((cv = (CV *)POPs)) |
478 | while (expect_true (cv = (CV *)POPs)) |
320 | { |
479 | { |
321 | AV *padlist = (AV *)POPs; |
|
|
322 | |
|
|
323 | if (padlist) |
|
|
324 | { |
|
|
325 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
480 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
326 | CvPADLIST(cv) = padlist; |
481 | CvDEPTH (cv) = PTR2IV (POPs); |
327 | } |
482 | CvPADLIST (cv) = (AV *)POPs; |
328 | |
|
|
329 | ++CvDEPTH(cv); |
|
|
330 | } |
483 | } |
331 | |
484 | |
332 | PUTBACK; |
485 | PUTBACK; |
333 | } |
486 | } |
334 | } |
487 | } |
335 | |
488 | |
336 | static void |
489 | static void |
337 | save_state(pTHX_ Coro__State c, int flags) |
490 | save_perl (pTHX_ Coro__State c) |
338 | { |
491 | { |
339 | { |
492 | { |
340 | dSP; |
493 | dSP; |
341 | I32 cxix = cxstack_ix; |
494 | I32 cxix = cxstack_ix; |
342 | PERL_CONTEXT *ccstk = cxstack; |
495 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
345 | /* |
498 | /* |
346 | * the worst thing you can imagine happens first - we have to save |
499 | * the worst thing you can imagine happens first - we have to save |
347 | * (and reinitialize) all cv's in the whole callchain :( |
500 | * (and reinitialize) all cv's in the whole callchain :( |
348 | */ |
501 | */ |
349 | |
502 | |
350 | PUSHs (Nullsv); |
503 | XPUSHs (Nullsv); |
351 | /* this loop was inspired by pp_caller */ |
504 | /* this loop was inspired by pp_caller */ |
352 | for (;;) |
505 | for (;;) |
353 | { |
506 | { |
354 | while (cxix >= 0) |
507 | while (expect_true (cxix >= 0)) |
355 | { |
508 | { |
356 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
509 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
357 | |
510 | |
358 | if (CxTYPE(cx) == CXt_SUB) |
511 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
359 | { |
512 | { |
360 | CV *cv = cx->blk_sub.cv; |
513 | CV *cv = cx->blk_sub.cv; |
|
|
514 | |
361 | if (CvDEPTH(cv)) |
515 | if (expect_true (CvDEPTH (cv))) |
362 | { |
516 | { |
363 | EXTEND (SP, CvDEPTH(cv)*2); |
517 | EXTEND (SP, 3); |
364 | |
|
|
365 | while (--CvDEPTH(cv)) |
|
|
366 | { |
|
|
367 | /* this tells the restore code to increment CvDEPTH */ |
|
|
368 | PUSHs (Nullsv); |
|
|
369 | PUSHs ((SV *)cv); |
|
|
370 | } |
|
|
371 | |
|
|
372 | PUSHs ((SV *)CvPADLIST(cv)); |
518 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
519 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
373 | PUSHs ((SV *)cv); |
520 | PUSHs ((SV *)cv); |
374 | |
521 | |
|
|
522 | CvDEPTH (cv) = 0; |
375 | get_padlist (aTHX_ cv); |
523 | get_padlist (aTHX_ cv); |
376 | } |
524 | } |
377 | } |
525 | } |
378 | #ifdef CXt_FORMAT |
|
|
379 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
380 | { |
|
|
381 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
382 | /* my bold guess is as a simple, plain sub... */ |
|
|
383 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
384 | } |
|
|
385 | #endif |
|
|
386 | } |
526 | } |
387 | |
527 | |
388 | if (top_si->si_type == PERLSI_MAIN) |
528 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
389 | break; |
529 | break; |
390 | |
530 | |
391 | top_si = top_si->si_prev; |
531 | top_si = top_si->si_prev; |
392 | ccstk = top_si->si_cxstack; |
532 | ccstk = top_si->si_cxstack; |
393 | cxix = top_si->si_cxix; |
533 | cxix = top_si->si_cxix; |
394 | } |
534 | } |
395 | |
535 | |
396 | PUTBACK; |
536 | PUTBACK; |
397 | } |
537 | } |
398 | |
538 | |
399 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
539 | /* allocate some space on the context stack for our purposes */ |
400 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
540 | /* we manually unroll here, as usually 2 slots is enough */ |
401 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
541 | if (SLOT_COUNT >= 1) CXINC; |
|
|
542 | if (SLOT_COUNT >= 2) CXINC; |
|
|
543 | if (SLOT_COUNT >= 3) CXINC; |
|
|
544 | { |
|
|
545 | int i; |
|
|
546 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
547 | CXINC; |
|
|
548 | } |
|
|
549 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
402 | |
550 | |
403 | c->dowarn = PL_dowarn; |
|
|
404 | c->in_eval = PL_in_eval; |
|
|
405 | |
|
|
406 | c->curstackinfo = PL_curstackinfo; |
|
|
407 | c->curstack = PL_curstack; |
|
|
408 | c->mainstack = PL_mainstack; |
551 | c->mainstack = PL_mainstack; |
409 | c->stack_sp = PL_stack_sp; |
552 | |
410 | c->op = PL_op; |
553 | { |
411 | c->curpad = PL_curpad; |
554 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
412 | c->comppad = PL_comppad; |
555 | |
413 | c->compcv = PL_compcv; |
556 | slot->defav = GvAV (PL_defgv); |
414 | c->stack_base = PL_stack_base; |
557 | slot->defsv = DEFSV; |
415 | c->stack_max = PL_stack_max; |
558 | slot->errsv = ERRSV; |
416 | c->tmps_stack = PL_tmps_stack; |
559 | slot->irsgv = GvSV (irsgv); |
417 | c->tmps_floor = PL_tmps_floor; |
560 | |
418 | c->tmps_ix = PL_tmps_ix; |
561 | #define VAR(name,type) slot->name = PL_ ## name; |
419 | c->tmps_max = PL_tmps_max; |
562 | # include "state.h" |
420 | c->markstack = PL_markstack; |
563 | #undef VAR |
421 | c->markstack_ptr = PL_markstack_ptr; |
564 | } |
422 | c->markstack_max = PL_markstack_max; |
|
|
423 | c->scopestack = PL_scopestack; |
|
|
424 | c->scopestack_ix = PL_scopestack_ix; |
|
|
425 | c->scopestack_max = PL_scopestack_max; |
|
|
426 | c->savestack = PL_savestack; |
|
|
427 | c->savestack_ix = PL_savestack_ix; |
|
|
428 | c->savestack_max = PL_savestack_max; |
|
|
429 | #if PERL_VERSION < 9 |
|
|
430 | c->retstack = PL_retstack; |
|
|
431 | c->retstack_ix = PL_retstack_ix; |
|
|
432 | c->retstack_max = PL_retstack_max; |
|
|
433 | #endif |
|
|
434 | c->curpm = PL_curpm; |
|
|
435 | c->curcop = PL_curcop; |
|
|
436 | } |
565 | } |
437 | |
566 | |
438 | /* |
567 | /* |
439 | * allocate various perl stacks. This is an exact copy |
568 | * allocate various perl stacks. This is an exact copy |
440 | * of perl.c:init_stacks, except that it uses less memory |
569 | * of perl.c:init_stacks, except that it uses less memory |
441 | * on the (sometimes correct) assumption that coroutines do |
570 | * on the (sometimes correct) assumption that coroutines do |
442 | * not usually need a lot of stackspace. |
571 | * not usually need a lot of stackspace. |
443 | */ |
572 | */ |
|
|
573 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
574 | # define coro_init_stacks init_stacks |
|
|
575 | #else |
444 | static void |
576 | static void |
445 | coro_init_stacks (pTHX) |
577 | coro_init_stacks (pTHX) |
446 | { |
578 | { |
447 | LOCK; |
579 | PL_curstackinfo = new_stackinfo(32, 8); |
448 | |
|
|
449 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
|
|
450 | PL_curstackinfo->si_type = PERLSI_MAIN; |
580 | PL_curstackinfo->si_type = PERLSI_MAIN; |
451 | PL_curstack = PL_curstackinfo->si_stack; |
581 | PL_curstack = PL_curstackinfo->si_stack; |
452 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
582 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
453 | |
583 | |
454 | PL_stack_base = AvARRAY(PL_curstack); |
584 | PL_stack_base = AvARRAY(PL_curstack); |
455 | PL_stack_sp = PL_stack_base; |
585 | PL_stack_sp = PL_stack_base; |
456 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
586 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
457 | |
587 | |
458 | New(50,PL_tmps_stack,96,SV*); |
588 | New(50,PL_tmps_stack,32,SV*); |
459 | PL_tmps_floor = -1; |
589 | PL_tmps_floor = -1; |
460 | PL_tmps_ix = -1; |
590 | PL_tmps_ix = -1; |
461 | PL_tmps_max = 96; |
591 | PL_tmps_max = 32; |
462 | |
592 | |
463 | New(54,PL_markstack,16,I32); |
593 | New(54,PL_markstack,16,I32); |
464 | PL_markstack_ptr = PL_markstack; |
594 | PL_markstack_ptr = PL_markstack; |
465 | PL_markstack_max = PL_markstack + 16; |
595 | PL_markstack_max = PL_markstack + 16; |
466 | |
596 | |
467 | #ifdef SET_MARK_OFFSET |
597 | #ifdef SET_MARK_OFFSET |
468 | SET_MARK_OFFSET; |
598 | SET_MARK_OFFSET; |
469 | #endif |
599 | #endif |
470 | |
600 | |
471 | New(54,PL_scopestack,16,I32); |
601 | New(54,PL_scopestack,8,I32); |
472 | PL_scopestack_ix = 0; |
602 | PL_scopestack_ix = 0; |
473 | PL_scopestack_max = 16; |
603 | PL_scopestack_max = 8; |
474 | |
604 | |
475 | New(54,PL_savestack,96,ANY); |
605 | New(54,PL_savestack,24,ANY); |
476 | PL_savestack_ix = 0; |
606 | PL_savestack_ix = 0; |
477 | PL_savestack_max = 96; |
607 | PL_savestack_max = 24; |
478 | |
608 | |
479 | #if PERL_VERSION < 9 |
609 | #if !PERL_VERSION_ATLEAST (5,10,0) |
480 | New(54,PL_retstack,8,OP*); |
610 | New(54,PL_retstack,4,OP*); |
481 | PL_retstack_ix = 0; |
611 | PL_retstack_ix = 0; |
482 | PL_retstack_max = 8; |
612 | PL_retstack_max = 4; |
483 | #endif |
613 | #endif |
484 | |
|
|
485 | UNLOCK; |
|
|
486 | } |
614 | } |
|
|
615 | #endif |
487 | |
616 | |
488 | /* |
617 | /* |
489 | * destroy the stacks, the callchain etc... |
618 | * destroy the stacks, the callchain etc... |
490 | */ |
619 | */ |
491 | static void |
620 | static void |
492 | destroy_stacks(pTHX) |
621 | coro_destroy_stacks (pTHX) |
493 | { |
622 | { |
494 | if (!IN_DESTRUCT) |
|
|
495 | { |
|
|
496 | /* is this ugly, I ask? */ |
|
|
497 | LEAVE_SCOPE (0); |
|
|
498 | |
|
|
499 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
500 | FREETMPS; |
|
|
501 | |
|
|
502 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
503 | } |
|
|
504 | |
|
|
505 | while (PL_curstackinfo->si_next) |
623 | while (PL_curstackinfo->si_next) |
506 | PL_curstackinfo = PL_curstackinfo->si_next; |
624 | PL_curstackinfo = PL_curstackinfo->si_next; |
507 | |
625 | |
508 | while (PL_curstackinfo) |
626 | while (PL_curstackinfo) |
509 | { |
627 | { |
510 | PERL_SI *p = PL_curstackinfo->si_prev; |
628 | PERL_SI *p = PL_curstackinfo->si_prev; |
511 | |
629 | |
512 | { /*D*//*remove*/ |
|
|
513 | dSP; |
|
|
514 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
515 | PUTBACK; /* possibly superfluous */ |
|
|
516 | } |
|
|
517 | |
|
|
518 | if (!IN_DESTRUCT) |
630 | if (!IN_DESTRUCT) |
519 | { |
|
|
520 | dounwind (-1);/*D*//*remove*/ |
|
|
521 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
631 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
522 | } |
|
|
523 | |
632 | |
524 | Safefree (PL_curstackinfo->si_cxstack); |
633 | Safefree (PL_curstackinfo->si_cxstack); |
525 | Safefree (PL_curstackinfo); |
634 | Safefree (PL_curstackinfo); |
526 | PL_curstackinfo = p; |
635 | PL_curstackinfo = p; |
527 | } |
636 | } |
528 | |
637 | |
529 | Safefree (PL_tmps_stack); |
638 | Safefree (PL_tmps_stack); |
530 | Safefree (PL_markstack); |
639 | Safefree (PL_markstack); |
531 | Safefree (PL_scopestack); |
640 | Safefree (PL_scopestack); |
532 | Safefree (PL_savestack); |
641 | Safefree (PL_savestack); |
533 | #if PERL_VERSION < 9 |
642 | #if !PERL_VERSION_ATLEAST (5,10,0) |
534 | Safefree (PL_retstack); |
643 | Safefree (PL_retstack); |
535 | #endif |
644 | #endif |
536 | } |
645 | } |
537 | |
646 | |
|
|
647 | static size_t |
|
|
648 | coro_rss (pTHX_ struct coro *coro) |
|
|
649 | { |
|
|
650 | size_t rss = sizeof (*coro); |
|
|
651 | |
|
|
652 | if (coro->mainstack) |
|
|
653 | { |
|
|
654 | perl_slots tmp_slot; |
|
|
655 | perl_slots *slot; |
|
|
656 | |
|
|
657 | if (coro->flags & CF_RUNNING) |
|
|
658 | { |
|
|
659 | slot = &tmp_slot; |
|
|
660 | |
|
|
661 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
662 | # include "state.h" |
|
|
663 | #undef VAR |
|
|
664 | } |
|
|
665 | else |
|
|
666 | slot = coro->slot; |
|
|
667 | |
|
|
668 | rss += sizeof (slot->curstackinfo); |
|
|
669 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
670 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
671 | rss += slot->tmps_max * sizeof (SV *); |
|
|
672 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
673 | rss += slot->scopestack_max * sizeof (I32); |
|
|
674 | rss += slot->savestack_max * sizeof (ANY); |
|
|
675 | |
|
|
676 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
677 | rss += slot->retstack_max * sizeof (OP *); |
|
|
678 | #endif |
|
|
679 | } |
|
|
680 | |
|
|
681 | return rss; |
|
|
682 | } |
|
|
683 | |
|
|
684 | /** coroutine stack handling ************************************************/ |
|
|
685 | |
|
|
686 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
687 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
688 | |
|
|
689 | /* |
|
|
690 | * This overrides the default magic get method of %SIG elements. |
|
|
691 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
692 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
693 | * readback here. |
|
|
694 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
695 | * not expecting this to actually change the hook. This is a potential problem |
|
|
696 | * when a schedule happens then, but we ignore this. |
|
|
697 | */ |
|
|
698 | static int |
|
|
699 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
700 | { |
|
|
701 | const char *s = MgPV_nolen_const (mg); |
|
|
702 | |
|
|
703 | if (*s == '_') |
|
|
704 | { |
|
|
705 | if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0; |
|
|
706 | if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0; |
|
|
707 | } |
|
|
708 | |
|
|
709 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
710 | } |
|
|
711 | |
|
|
712 | static int |
|
|
713 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
714 | { |
|
|
715 | const char *s = MgPV_nolen_const (mg); |
|
|
716 | |
|
|
717 | if (*s == '_') |
|
|
718 | { |
|
|
719 | SV **svp = 0; |
|
|
720 | |
|
|
721 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
722 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
723 | |
|
|
724 | if (svp) |
|
|
725 | { |
|
|
726 | SV *old = *svp; |
|
|
727 | *svp = newSVsv (sv); |
|
|
728 | SvREFCNT_dec (old); |
|
|
729 | return 0; |
|
|
730 | } |
|
|
731 | } |
|
|
732 | |
|
|
733 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
734 | } |
|
|
735 | |
538 | static void |
736 | static void |
539 | setup_coro (struct coro *coro) |
737 | coro_setup (pTHX_ struct coro *coro) |
540 | { |
738 | { |
541 | /* |
739 | /* |
542 | * emulate part of the perl startup here. |
740 | * emulate part of the perl startup here. |
543 | */ |
741 | */ |
544 | dTHX; |
742 | coro_init_stacks (aTHX); |
|
|
743 | |
|
|
744 | PL_runops = RUNOPS_DEFAULT; |
|
|
745 | PL_curcop = &PL_compiling; |
|
|
746 | PL_in_eval = EVAL_NULL; |
|
|
747 | PL_comppad = 0; |
|
|
748 | PL_curpm = 0; |
|
|
749 | PL_curpad = 0; |
|
|
750 | PL_localizing = 0; |
|
|
751 | PL_dirty = 0; |
|
|
752 | PL_restartop = 0; |
|
|
753 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
754 | PL_parser = 0; |
|
|
755 | #endif |
|
|
756 | |
|
|
757 | /* recreate the die/warn hooks */ |
|
|
758 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
759 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
760 | |
|
|
761 | GvSV (PL_defgv) = newSV (0); |
|
|
762 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
763 | GvSV (PL_errgv) = newSV (0); |
|
|
764 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
765 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
766 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
|
|
767 | |
|
|
768 | { |
|
|
769 | dSP; |
|
|
770 | LOGOP myop; |
|
|
771 | |
|
|
772 | Zero (&myop, 1, LOGOP); |
|
|
773 | myop.op_next = Nullop; |
|
|
774 | myop.op_flags = OPf_WANT_VOID; |
|
|
775 | |
|
|
776 | PUSHMARK (SP); |
|
|
777 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
778 | PUTBACK; |
|
|
779 | PL_op = (OP *)&myop; |
|
|
780 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
781 | SPAGAIN; |
|
|
782 | } |
|
|
783 | |
|
|
784 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
785 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
786 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
787 | * so we ENTER here for symmetry |
|
|
788 | */ |
|
|
789 | ENTER; |
|
|
790 | } |
|
|
791 | |
|
|
792 | static void |
|
|
793 | coro_destroy (pTHX_ struct coro *coro) |
|
|
794 | { |
|
|
795 | if (!IN_DESTRUCT) |
|
|
796 | { |
|
|
797 | /* restore all saved variables and stuff */ |
|
|
798 | LEAVE_SCOPE (0); |
|
|
799 | assert (PL_tmps_floor == -1); |
|
|
800 | |
|
|
801 | /* free all temporaries */ |
|
|
802 | FREETMPS; |
|
|
803 | assert (PL_tmps_ix == -1); |
|
|
804 | |
|
|
805 | /* unwind all extra stacks */ |
|
|
806 | POPSTACK_TO (PL_mainstack); |
|
|
807 | |
|
|
808 | /* unwind main stack */ |
|
|
809 | dounwind (-1); |
|
|
810 | } |
|
|
811 | |
|
|
812 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
813 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
814 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
815 | SvREFCNT_dec (PL_defoutgv); |
|
|
816 | SvREFCNT_dec (PL_rs); |
|
|
817 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
818 | |
|
|
819 | SvREFCNT_dec (PL_diehook); |
|
|
820 | SvREFCNT_dec (PL_warnhook); |
|
|
821 | |
|
|
822 | SvREFCNT_dec (coro->saved_deffh); |
|
|
823 | SvREFCNT_dec (coro->throw); |
|
|
824 | |
|
|
825 | coro_destroy_stacks (aTHX); |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
|
|
829 | free_coro_mortal (pTHX) |
|
|
830 | { |
|
|
831 | if (expect_true (coro_mortal)) |
|
|
832 | { |
|
|
833 | SvREFCNT_dec (coro_mortal); |
|
|
834 | coro_mortal = 0; |
|
|
835 | } |
|
|
836 | } |
|
|
837 | |
|
|
838 | static int |
|
|
839 | runops_trace (pTHX) |
|
|
840 | { |
|
|
841 | COP *oldcop = 0; |
|
|
842 | int oldcxix = -2; |
|
|
843 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
844 | coro_cctx *cctx = coro->cctx; |
|
|
845 | |
|
|
846 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
847 | { |
|
|
848 | PERL_ASYNC_CHECK (); |
|
|
849 | |
|
|
850 | if (cctx->flags & CC_TRACE_ALL) |
|
|
851 | { |
|
|
852 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
853 | { |
|
|
854 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
855 | SV **bot, **top; |
|
|
856 | AV *av = newAV (); /* return values */ |
|
|
857 | SV **cb; |
|
|
858 | dSP; |
|
|
859 | |
|
|
860 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
861 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
862 | if (isGV (gv)) |
|
|
863 | gv_efullname3 (fullname, gv, 0); |
|
|
864 | |
|
|
865 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
866 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
867 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
868 | : bot; |
|
|
869 | |
|
|
870 | av_extend (av, top - bot); |
|
|
871 | while (bot < top) |
|
|
872 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
873 | |
|
|
874 | PL_runops = RUNOPS_DEFAULT; |
|
|
875 | ENTER; |
|
|
876 | SAVETMPS; |
|
|
877 | EXTEND (SP, 3); |
|
|
878 | PUSHMARK (SP); |
|
|
879 | PUSHs (&PL_sv_no); |
|
|
880 | PUSHs (fullname); |
|
|
881 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
882 | PUTBACK; |
|
|
883 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
884 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
885 | SPAGAIN; |
|
|
886 | FREETMPS; |
|
|
887 | LEAVE; |
|
|
888 | PL_runops = runops_trace; |
|
|
889 | } |
|
|
890 | |
|
|
891 | if (oldcop != PL_curcop) |
|
|
892 | { |
|
|
893 | oldcop = PL_curcop; |
|
|
894 | |
|
|
895 | if (PL_curcop != &PL_compiling) |
|
|
896 | { |
|
|
897 | SV **cb; |
|
|
898 | |
|
|
899 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
900 | { |
|
|
901 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
902 | |
|
|
903 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
904 | { |
|
|
905 | runops_proc_t old_runops = PL_runops; |
|
|
906 | dSP; |
|
|
907 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
908 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
909 | |
|
|
910 | if (isGV (gv)) |
|
|
911 | gv_efullname3 (fullname, gv, 0); |
|
|
912 | |
|
|
913 | PL_runops = RUNOPS_DEFAULT; |
|
|
914 | ENTER; |
|
|
915 | SAVETMPS; |
|
|
916 | EXTEND (SP, 3); |
|
|
917 | PUSHMARK (SP); |
|
|
918 | PUSHs (&PL_sv_yes); |
|
|
919 | PUSHs (fullname); |
|
|
920 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
921 | PUTBACK; |
|
|
922 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
923 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
924 | SPAGAIN; |
|
|
925 | FREETMPS; |
|
|
926 | LEAVE; |
|
|
927 | PL_runops = runops_trace; |
|
|
928 | } |
|
|
929 | |
|
|
930 | oldcxix = cxstack_ix; |
|
|
931 | } |
|
|
932 | |
|
|
933 | if (cctx->flags & CC_TRACE_LINE) |
|
|
934 | { |
|
|
935 | dSP; |
|
|
936 | |
|
|
937 | PL_runops = RUNOPS_DEFAULT; |
|
|
938 | ENTER; |
|
|
939 | SAVETMPS; |
|
|
940 | EXTEND (SP, 3); |
|
|
941 | PL_runops = RUNOPS_DEFAULT; |
|
|
942 | PUSHMARK (SP); |
|
|
943 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
944 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
945 | PUTBACK; |
|
|
946 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
947 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
948 | SPAGAIN; |
|
|
949 | FREETMPS; |
|
|
950 | LEAVE; |
|
|
951 | PL_runops = runops_trace; |
|
|
952 | } |
|
|
953 | } |
|
|
954 | } |
|
|
955 | } |
|
|
956 | } |
|
|
957 | |
|
|
958 | TAINT_NOT; |
|
|
959 | return 0; |
|
|
960 | } |
|
|
961 | |
|
|
962 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
963 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
964 | /* during execution of a perl program */ |
|
|
965 | static void NOINLINE |
|
|
966 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
967 | { |
545 | dSP; |
968 | dSP; |
546 | UNOP myop; |
969 | LOGOP myop; |
547 | SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE); |
|
|
548 | |
970 | |
549 | coro_init_stacks (aTHX); |
971 | PL_top_env = &PL_start_env; |
550 | /*PL_curcop = 0;*/ |
|
|
551 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
552 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
553 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
554 | |
972 | |
555 | SPAGAIN; |
973 | if (cctx->flags & CC_TRACE) |
|
|
974 | PL_runops = runops_trace; |
556 | |
975 | |
557 | Zero (&myop, 1, UNOP); |
976 | Zero (&myop, 1, LOGOP); |
558 | myop.op_next = Nullop; |
977 | myop.op_next = PL_op; |
559 | myop.op_flags = OPf_WANT_VOID; |
978 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
560 | |
979 | |
|
|
980 | PUSHMARK (SP); |
|
|
981 | EXTEND (SP, 2); |
|
|
982 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
983 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
984 | PUTBACK; |
561 | PL_op = (OP *)&myop; |
985 | PL_op = (OP *)&myop; |
562 | |
|
|
563 | PUSHMARK(SP); |
|
|
564 | XPUSHs (sub_init); |
|
|
565 | PUTBACK; |
|
|
566 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
986 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
567 | SPAGAIN; |
987 | SPAGAIN; |
568 | |
|
|
569 | ENTER; /* necessary e.g. for dounwind */ |
|
|
570 | } |
988 | } |
571 | |
989 | |
|
|
990 | /* |
|
|
991 | * this is a _very_ stripped down perl interpreter ;) |
|
|
992 | */ |
572 | static void |
993 | static void |
573 | free_coro_mortal () |
994 | cctx_run (void *arg) |
574 | { |
995 | { |
575 | if (coro_mortal) |
996 | dTHX; |
576 | { |
997 | |
577 | SvREFCNT_dec (coro_mortal); |
998 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
578 | coro_mortal = 0; |
999 | UNLOCK; |
|
|
1000 | |
|
|
1001 | /* we now skip the entersub that lead to transfer() */ |
|
|
1002 | PL_op = PL_op->op_next; |
|
|
1003 | |
|
|
1004 | /* inject a fake subroutine call to cctx_init */ |
|
|
1005 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
|
|
1006 | |
|
|
1007 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
1008 | PL_restartop = PL_op; |
|
|
1009 | perl_run (PL_curinterp); |
|
|
1010 | |
|
|
1011 | /* |
|
|
1012 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1013 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1014 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
1015 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
1016 | * coroutine as Coro has no such concept |
|
|
1017 | */ |
|
|
1018 | PL_top_env = main_top_env; |
|
|
1019 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1020 | } |
|
|
1021 | |
|
|
1022 | static coro_cctx * |
|
|
1023 | cctx_new () |
|
|
1024 | { |
|
|
1025 | coro_cctx *cctx; |
|
|
1026 | void *stack_start; |
|
|
1027 | size_t stack_size; |
|
|
1028 | |
|
|
1029 | ++cctx_count; |
|
|
1030 | |
|
|
1031 | Newz (0, cctx, 1, coro_cctx); |
|
|
1032 | |
|
|
1033 | #if HAVE_MMAP |
|
|
1034 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
|
|
1035 | /* mmap supposedly does allocate-on-write for us */ |
|
|
1036 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
1037 | |
|
|
1038 | if (cctx->sptr != (void *)-1) |
579 | } |
1039 | { |
|
|
1040 | # if CORO_STACKGUARD |
|
|
1041 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
1042 | # endif |
|
|
1043 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
1044 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
1045 | cctx->flags |= CC_MAPPED; |
|
|
1046 | } |
|
|
1047 | else |
|
|
1048 | #endif |
|
|
1049 | { |
|
|
1050 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
1051 | New (0, cctx->sptr, coro_stacksize, long); |
|
|
1052 | |
|
|
1053 | if (!cctx->sptr) |
|
|
1054 | { |
|
|
1055 | perror ("FATAL: unable to allocate stack for coroutine"); |
|
|
1056 | _exit (EXIT_FAILURE); |
|
|
1057 | } |
|
|
1058 | |
|
|
1059 | stack_start = cctx->sptr; |
|
|
1060 | stack_size = cctx->ssize; |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
1064 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
|
|
1065 | |
|
|
1066 | return cctx; |
580 | } |
1067 | } |
581 | |
1068 | |
582 | static void |
1069 | static void |
583 | coro_run (void *arg) |
1070 | cctx_destroy (coro_cctx *cctx) |
584 | { |
1071 | { |
585 | /* |
1072 | if (!cctx) |
586 | * this is a _very_ stripped down perl interpreter ;) |
1073 | return; |
587 | */ |
|
|
588 | dTHX; |
|
|
589 | PL_top_env = &PL_start_env; |
|
|
590 | |
1074 | |
591 | UNLOCK; |
1075 | --cctx_count; |
592 | |
1076 | |
593 | sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg)); |
1077 | #if CORO_USE_VALGRIND |
594 | sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op)); |
1078 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
595 | PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE)); |
1079 | #endif |
596 | |
|
|
597 | /* somebody will hit me for both perl_run and PL_restart_op */ |
|
|
598 | perl_run (aTHX_ PERL_GET_CONTEXT); |
|
|
599 | |
|
|
600 | abort (); |
|
|
601 | } |
|
|
602 | |
|
|
603 | static coro_stack * |
|
|
604 | stack_new () |
|
|
605 | { |
|
|
606 | coro_stack *stack; |
|
|
607 | |
|
|
608 | New (0, stack, 1, coro_stack); |
|
|
609 | |
1080 | |
610 | #if HAVE_MMAP |
1081 | #if HAVE_MMAP |
|
|
1082 | if (cctx->flags & CC_MAPPED) |
|
|
1083 | munmap (cctx->sptr, cctx->ssize); |
|
|
1084 | else |
|
|
1085 | #endif |
|
|
1086 | Safefree (cctx->sptr); |
611 | |
1087 | |
612 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
1088 | Safefree (cctx); |
613 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1089 | } |
614 | |
1090 | |
615 | if (stack->sptr == (void *)-1) |
1091 | /* wether this cctx should be destructed */ |
616 | { |
1092 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
617 | perror ("FATAL: unable to mmap stack for coroutine"); |
1093 | |
618 | _exit (EXIT_FAILURE); |
1094 | static coro_cctx * |
|
|
1095 | cctx_get (pTHX) |
|
|
1096 | { |
|
|
1097 | while (expect_true (cctx_first)) |
619 | } |
1098 | { |
|
|
1099 | coro_cctx *cctx = cctx_first; |
|
|
1100 | cctx_first = cctx->next; |
|
|
1101 | --cctx_idle; |
620 | |
1102 | |
621 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1103 | if (expect_true (!CCTX_EXPIRED (cctx))) |
|
|
1104 | return cctx; |
622 | |
1105 | |
623 | #else |
1106 | cctx_destroy (cctx); |
624 | |
|
|
625 | stack->ssize = STACKSIZE * (long)sizeof (long); |
|
|
626 | New (0, stack->sptr, STACKSIZE, long); |
|
|
627 | |
|
|
628 | if (!stack->sptr) |
|
|
629 | { |
1107 | } |
630 | perror (stderr, "FATAL: unable to malloc stack for coroutine"); |
|
|
631 | _exit (EXIT_FAILURE); |
|
|
632 | } |
|
|
633 | |
1108 | |
634 | #endif |
1109 | return cctx_new (); |
635 | |
|
|
636 | coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize); |
|
|
637 | |
|
|
638 | return stack; |
|
|
639 | } |
1110 | } |
640 | |
1111 | |
641 | static void |
1112 | static void |
642 | stack_free (coro_stack *stack) |
1113 | cctx_put (coro_cctx *cctx) |
643 | { |
1114 | { |
644 | if (!stack || stack == main_stack) |
1115 | /* free another cctx if overlimit */ |
645 | return; |
1116 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
646 | |
|
|
647 | #if HAVE_MMAP |
|
|
648 | munmap (stack->sptr, stack->ssize); |
|
|
649 | #else |
|
|
650 | Safefree (stack->sptr); |
|
|
651 | #endif |
|
|
652 | |
|
|
653 | Safefree (stack); |
|
|
654 | } |
|
|
655 | |
|
|
656 | static coro_stack *stack_first; |
|
|
657 | |
|
|
658 | static coro_stack * |
|
|
659 | stack_get () |
|
|
660 | { |
|
|
661 | coro_stack *stack; |
|
|
662 | |
|
|
663 | if (stack_first) |
|
|
664 | { |
|
|
665 | stack = stack_first; |
|
|
666 | stack_first = stack->next; |
|
|
667 | } |
|
|
668 | else |
|
|
669 | { |
1117 | { |
670 | stack = stack_new (); |
1118 | coro_cctx *first = cctx_first; |
671 | PL_op = PL_op->op_next; |
1119 | cctx_first = first->next; |
|
|
1120 | --cctx_idle; |
|
|
1121 | |
|
|
1122 | cctx_destroy (first); |
672 | } |
1123 | } |
673 | |
1124 | |
674 | return stack; |
1125 | ++cctx_idle; |
|
|
1126 | cctx->next = cctx_first; |
|
|
1127 | cctx_first = cctx; |
675 | } |
1128 | } |
|
|
1129 | |
|
|
1130 | /** coroutine switching *****************************************************/ |
676 | |
1131 | |
677 | static void |
1132 | static void |
678 | stack_put (coro_stack *stack) |
1133 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
679 | { |
1134 | { |
680 | stack->next = stack_first; |
1135 | if (expect_true (prev != next)) |
681 | stack_first = stack; |
1136 | { |
682 | } |
1137 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1138 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
683 | |
1139 | |
684 | /* never call directly, always through the coro_state_transfer global variable */ |
1140 | if (expect_false (next->flags & CF_RUNNING)) |
685 | static void |
1141 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1142 | |
|
|
1143 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1144 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1145 | |
|
|
1146 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1147 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1148 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
|
|
1149 | #endif |
|
|
1150 | } |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | /* always use the TRANSFER macro */ |
|
|
1154 | static void NOINLINE |
686 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
1155 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
687 | { |
1156 | { |
688 | dSTACKLEVEL; |
1157 | dSTACKLEVEL; |
|
|
1158 | static volatile int has_throw; |
689 | |
1159 | |
690 | /* sometimes transfer is only called to set idle_sp */ |
1160 | /* sometimes transfer is only called to set idle_sp */ |
691 | if (flags == TRANSFER_SET_STACKLEVEL) |
1161 | if (expect_false (!next)) |
|
|
1162 | { |
692 | ((coro_stack *)prev)->idle_sp = STACKLEVEL; |
1163 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
693 | else if (prev != next) |
1164 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
694 | { |
1165 | } |
|
|
1166 | else if (expect_true (prev != next)) |
|
|
1167 | { |
695 | coro_stack *prev__stack; |
1168 | coro_cctx *prev__cctx; |
|
|
1169 | |
|
|
1170 | if (expect_false (prev->flags & CF_NEW)) |
|
|
1171 | { |
|
|
1172 | /* create a new empty context */ |
|
|
1173 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1174 | prev->flags &= ~CF_NEW; |
|
|
1175 | prev->flags |= CF_RUNNING; |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | prev->flags &= ~CF_RUNNING; |
|
|
1179 | next->flags |= CF_RUNNING; |
696 | |
1180 | |
697 | LOCK; |
1181 | LOCK; |
698 | |
1182 | |
699 | if (next->mainstack) |
1183 | /* first get rid of the old state */ |
|
|
1184 | save_perl (aTHX_ prev); |
|
|
1185 | |
|
|
1186 | if (expect_false (next->flags & CF_NEW)) |
700 | { |
1187 | { |
701 | /* coroutine already started */ |
1188 | /* need to start coroutine */ |
702 | SAVE (prev, flags); |
1189 | next->flags &= ~CF_NEW; |
703 | LOAD (next); |
1190 | /* setup coroutine call */ |
|
|
1191 | coro_setup (aTHX_ next); |
704 | } |
1192 | } |
705 | else |
1193 | else |
|
|
1194 | load_perl (aTHX_ next); |
|
|
1195 | |
|
|
1196 | prev__cctx = prev->cctx; |
|
|
1197 | |
|
|
1198 | /* possibly "free" the cctx */ |
|
|
1199 | if (expect_true ( |
|
|
1200 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1201 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1202 | && !force_cctx |
|
|
1203 | )) |
706 | { |
1204 | { |
707 | /* need to start coroutine */ |
1205 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
708 | /* first get rid of the old state */ |
1206 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
709 | SAVE (prev, -1); |
1207 | |
710 | /* setup coroutine call */ |
1208 | prev->cctx = 0; |
711 | setup_coro (next); |
1209 | |
712 | /* need a stack */ |
1210 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
713 | next->stack = 0; |
1211 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1212 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1213 | if (!next->cctx) |
|
|
1214 | next->cctx = cctx_get (aTHX); |
|
|
1215 | |
|
|
1216 | cctx_put (prev__cctx); |
714 | } |
1217 | } |
715 | |
1218 | |
716 | prev__stack = prev->stack; |
1219 | ++next->usecount; |
717 | |
1220 | |
718 | /* possibly "free" the stack */ |
1221 | if (expect_true (!next->cctx)) |
719 | if (prev__stack->idle_sp == STACKLEVEL) |
1222 | next->cctx = cctx_get (aTHX); |
|
|
1223 | |
|
|
1224 | has_throw = !!next->throw; |
|
|
1225 | |
|
|
1226 | if (expect_false (prev__cctx != next->cctx)) |
720 | { |
1227 | { |
721 | stack_put (prev__stack); |
1228 | prev__cctx->top_env = PL_top_env; |
722 | prev->stack = 0; |
1229 | PL_top_env = next->cctx->top_env; |
|
|
1230 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
723 | } |
1231 | } |
724 | |
1232 | |
725 | if (!next->stack) |
1233 | free_coro_mortal (aTHX); |
726 | next->stack = stack_get (); |
1234 | UNLOCK; |
727 | |
1235 | |
728 | if (prev__stack != next->stack) |
1236 | if (expect_false (has_throw)) |
729 | { |
1237 | { |
730 | prev__stack->top_env = PL_top_env; |
1238 | struct coro *coro = SvSTATE (coro_current); |
731 | PL_top_env = next->stack->top_env; |
1239 | |
732 | coro_transfer (&prev__stack->cctx, &next->stack->cctx); |
1240 | if (coro->throw) |
|
|
1241 | { |
|
|
1242 | SV *exception = coro->throw; |
|
|
1243 | coro->throw = 0; |
|
|
1244 | sv_setsv (ERRSV, exception); |
|
|
1245 | croak (0); |
|
|
1246 | } |
733 | } |
1247 | } |
|
|
1248 | } |
|
|
1249 | } |
734 | |
1250 | |
735 | free_coro_mortal (); |
1251 | struct transfer_args |
|
|
1252 | { |
|
|
1253 | struct coro *prev, *next; |
|
|
1254 | }; |
736 | |
1255 | |
|
|
1256 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
|
|
1257 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
|
|
1258 | |
|
|
1259 | /** high level stuff ********************************************************/ |
|
|
1260 | |
|
|
1261 | static int |
|
|
1262 | coro_state_destroy (pTHX_ struct coro *coro) |
|
|
1263 | { |
|
|
1264 | if (coro->flags & CF_DESTROYED) |
|
|
1265 | return 0; |
|
|
1266 | |
|
|
1267 | coro->flags |= CF_DESTROYED; |
|
|
1268 | |
|
|
1269 | if (coro->flags & CF_READY) |
|
|
1270 | { |
|
|
1271 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1272 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1273 | LOCK; |
|
|
1274 | --coro_nready; |
737 | UNLOCK; |
1275 | UNLOCK; |
738 | } |
1276 | } |
739 | } |
1277 | else |
740 | |
1278 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
741 | /* use this function pointer to call the above function */ |
|
|
742 | /* this is done to increase chances of the compiler not inlining the call */ |
|
|
743 | /* not static to make it even harder for the compiler (and theoretically impossible in most cases */ |
|
|
744 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
|
|
745 | |
|
|
746 | struct transfer_args |
|
|
747 | { |
|
|
748 | struct coro *prev, *next; |
|
|
749 | int flags; |
|
|
750 | }; |
|
|
751 | |
|
|
752 | #define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags) |
|
|
753 | |
|
|
754 | static void |
|
|
755 | coro_state_destroy (struct coro *coro) |
|
|
756 | { |
|
|
757 | if (coro->refcnt--) |
|
|
758 | return; |
|
|
759 | |
1279 | |
760 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1280 | if (coro->mainstack && coro->mainstack != main_mainstack) |
761 | { |
1281 | { |
762 | struct coro temp; |
1282 | struct coro temp; |
763 | |
1283 | |
764 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1284 | if (coro->flags & CF_RUNNING) |
|
|
1285 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1286 | |
|
|
1287 | save_perl (aTHX_ &temp); |
765 | LOAD (aTHX_ coro); |
1288 | load_perl (aTHX_ coro); |
766 | |
1289 | |
767 | destroy_stacks (aTHX); |
1290 | coro_destroy (aTHX_ coro); |
768 | |
1291 | |
769 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1292 | load_perl (aTHX_ &temp); |
770 | |
1293 | |
771 | coro->mainstack = 0; |
1294 | coro->slot = 0; |
772 | } |
1295 | } |
773 | |
1296 | |
774 | stack_free (coro->stack); |
1297 | cctx_destroy (coro->cctx); |
775 | SvREFCNT_dec (coro->args); |
1298 | SvREFCNT_dec (coro->args); |
776 | Safefree (coro); |
1299 | |
|
|
1300 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1301 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1302 | if (coro == coro_first) coro_first = coro->next; |
|
|
1303 | |
|
|
1304 | return 1; |
777 | } |
1305 | } |
778 | |
1306 | |
779 | static int |
1307 | static int |
780 | coro_state_clear (SV *sv, MAGIC *mg) |
1308 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
781 | { |
1309 | { |
782 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1310 | struct coro *coro = (struct coro *)mg->mg_ptr; |
783 | mg->mg_ptr = 0; |
1311 | mg->mg_ptr = 0; |
784 | |
1312 | |
|
|
1313 | coro->hv = 0; |
|
|
1314 | |
|
|
1315 | if (--coro->refcnt < 0) |
|
|
1316 | { |
785 | coro_state_destroy (coro); |
1317 | coro_state_destroy (aTHX_ coro); |
|
|
1318 | Safefree (coro); |
|
|
1319 | } |
786 | |
1320 | |
787 | return 0; |
1321 | return 0; |
788 | } |
1322 | } |
789 | |
1323 | |
790 | static int |
1324 | static int |
791 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
1325 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
792 | { |
1326 | { |
793 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1327 | struct coro *coro = (struct coro *)mg->mg_ptr; |
794 | |
1328 | |
795 | ++coro->refcnt; |
1329 | ++coro->refcnt; |
796 | |
1330 | |
797 | return 0; |
1331 | return 0; |
798 | } |
1332 | } |
799 | |
1333 | |
800 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
1334 | static MGVTBL coro_state_vtbl = { |
801 | |
1335 | 0, 0, 0, 0, |
802 | static struct coro * |
1336 | coro_state_free, |
803 | SvSTATE (SV *coro) |
1337 | 0, |
804 | { |
1338 | #ifdef MGf_DUP |
805 | HV *stash; |
1339 | coro_state_dup, |
806 | MAGIC *mg; |
1340 | #else |
807 | |
1341 | # define MGf_DUP 0 |
808 | if (SvROK (coro)) |
1342 | #endif |
809 | coro = SvRV (coro); |
1343 | }; |
810 | |
|
|
811 | stash = SvSTASH (coro); |
|
|
812 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
813 | { |
|
|
814 | /* very slow, but rare, check */ |
|
|
815 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
816 | croak ("Coro::State object required"); |
|
|
817 | } |
|
|
818 | |
|
|
819 | mg = SvMAGIC (coro); |
|
|
820 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
821 | return (struct coro *)mg->mg_ptr; |
|
|
822 | } |
|
|
823 | |
1344 | |
824 | static void |
1345 | static void |
825 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev, SV *next, int flags) |
1346 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
826 | { |
1347 | { |
827 | ta->prev = SvSTATE (prev); |
1348 | ta->prev = SvSTATE (prev_sv); |
828 | ta->next = SvSTATE (next); |
1349 | ta->next = SvSTATE (next_sv); |
829 | ta->flags = flags; |
1350 | TRANSFER_CHECK (*ta); |
830 | } |
1351 | } |
831 | |
1352 | |
832 | static void |
1353 | static void |
833 | api_transfer (SV *prev, SV *next, int flags) |
1354 | api_transfer (SV *prev_sv, SV *next_sv) |
834 | { |
1355 | { |
835 | dTHX; |
1356 | dTHX; |
836 | struct transfer_args ta; |
1357 | struct transfer_args ta; |
837 | |
1358 | |
838 | prepare_transfer (aTHX_ &ta, prev, next, flags); |
1359 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
839 | TRANSFER (ta); |
1360 | TRANSFER (ta, 1); |
840 | } |
1361 | } |
841 | |
1362 | |
842 | /** Coro ********************************************************************/ |
1363 | /** Coro ********************************************************************/ |
843 | |
1364 | |
844 | #define PRIO_MAX 3 |
|
|
845 | #define PRIO_HIGH 1 |
|
|
846 | #define PRIO_NORMAL 0 |
|
|
847 | #define PRIO_LOW -1 |
|
|
848 | #define PRIO_IDLE -3 |
|
|
849 | #define PRIO_MIN -4 |
|
|
850 | |
|
|
851 | /* for Coro.pm */ |
|
|
852 | static GV *coro_current, *coro_idle; |
|
|
853 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
854 | static int coro_nready; |
|
|
855 | |
|
|
856 | static void |
1365 | static void |
857 | coro_enq (pTHX_ SV *sv) |
1366 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1367 | { |
|
|
1368 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1369 | } |
|
|
1370 | |
|
|
1371 | static SV * |
|
|
1372 | coro_deq (pTHX) |
858 | { |
1373 | { |
859 | int prio; |
1374 | int prio; |
860 | |
1375 | |
861 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
862 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
863 | |
|
|
864 | prio = SvSTATE (sv)->prio; |
|
|
865 | |
|
|
866 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
867 | coro_nready++; |
|
|
868 | } |
|
|
869 | |
|
|
870 | static SV * |
|
|
871 | coro_deq (pTHX_ int min_prio) |
|
|
872 | { |
|
|
873 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
874 | |
|
|
875 | min_prio -= PRIO_MIN; |
|
|
876 | if (min_prio < 0) |
|
|
877 | min_prio = 0; |
|
|
878 | |
|
|
879 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1376 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
880 | if (AvFILLp (coro_ready [prio]) >= 0) |
1377 | if (AvFILLp (coro_ready [prio]) >= 0) |
881 | { |
|
|
882 | coro_nready--; |
|
|
883 | return av_shift (coro_ready [prio]); |
1378 | return av_shift (coro_ready [prio]); |
884 | } |
|
|
885 | |
1379 | |
886 | return 0; |
1380 | return 0; |
887 | } |
1381 | } |
888 | |
1382 | |
|
|
1383 | static int |
|
|
1384 | api_ready (SV *coro_sv) |
|
|
1385 | { |
|
|
1386 | dTHX; |
|
|
1387 | struct coro *coro; |
|
|
1388 | SV *hook; |
|
|
1389 | |
|
|
1390 | if (SvROK (coro_sv)) |
|
|
1391 | coro_sv = SvRV (coro_sv); |
|
|
1392 | |
|
|
1393 | coro = SvSTATE (coro_sv); |
|
|
1394 | |
|
|
1395 | if (coro->flags & CF_READY) |
|
|
1396 | return 0; |
|
|
1397 | |
|
|
1398 | coro->flags |= CF_READY; |
|
|
1399 | |
|
|
1400 | LOCK; |
|
|
1401 | |
|
|
1402 | hook = coro_nready ? 0 : coro_readyhook; |
|
|
1403 | |
|
|
1404 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1405 | ++coro_nready; |
|
|
1406 | |
|
|
1407 | UNLOCK; |
|
|
1408 | |
|
|
1409 | if (hook) |
|
|
1410 | { |
|
|
1411 | dSP; |
|
|
1412 | |
|
|
1413 | ENTER; |
|
|
1414 | SAVETMPS; |
|
|
1415 | |
|
|
1416 | PUSHMARK (SP); |
|
|
1417 | PUTBACK; |
|
|
1418 | call_sv (hook, G_DISCARD); |
|
|
1419 | SPAGAIN; |
|
|
1420 | |
|
|
1421 | FREETMPS; |
|
|
1422 | LEAVE; |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | return 1; |
|
|
1426 | } |
|
|
1427 | |
|
|
1428 | static int |
|
|
1429 | api_is_ready (SV *coro_sv) |
|
|
1430 | { |
|
|
1431 | dTHX; |
|
|
1432 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1433 | } |
|
|
1434 | |
889 | static void |
1435 | static void |
890 | api_ready (SV *coro) |
1436 | prepare_schedule (pTHX_ struct transfer_args *ta) |
891 | { |
1437 | { |
892 | dTHX; |
1438 | SV *prev_sv, *next_sv; |
893 | |
1439 | |
894 | if (SvROK (coro)) |
1440 | for (;;) |
895 | coro = SvRV (coro); |
1441 | { |
|
|
1442 | LOCK; |
|
|
1443 | next_sv = coro_deq (aTHX); |
|
|
1444 | |
|
|
1445 | /* nothing to schedule: call the idle handler */ |
|
|
1446 | if (expect_false (!next_sv)) |
|
|
1447 | { |
|
|
1448 | dSP; |
|
|
1449 | UNLOCK; |
|
|
1450 | |
|
|
1451 | ENTER; |
|
|
1452 | SAVETMPS; |
|
|
1453 | |
|
|
1454 | PUSHMARK (SP); |
|
|
1455 | PUTBACK; |
|
|
1456 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1457 | SPAGAIN; |
|
|
1458 | |
|
|
1459 | FREETMPS; |
|
|
1460 | LEAVE; |
|
|
1461 | continue; |
|
|
1462 | } |
|
|
1463 | |
|
|
1464 | ta->next = SvSTATE (next_sv); |
|
|
1465 | |
|
|
1466 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1467 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1468 | { |
|
|
1469 | UNLOCK; |
|
|
1470 | SvREFCNT_dec (next_sv); |
|
|
1471 | /* coro_nready is already taken care of by destroy */ |
|
|
1472 | continue; |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | --coro_nready; |
|
|
1476 | UNLOCK; |
|
|
1477 | break; |
|
|
1478 | } |
|
|
1479 | |
|
|
1480 | /* free this only after the transfer */ |
|
|
1481 | prev_sv = SvRV (coro_current); |
|
|
1482 | ta->prev = SvSTATE (prev_sv); |
|
|
1483 | TRANSFER_CHECK (*ta); |
|
|
1484 | assert (ta->next->flags & CF_READY); |
|
|
1485 | ta->next->flags &= ~CF_READY; |
|
|
1486 | SvRV_set (coro_current, next_sv); |
896 | |
1487 | |
897 | LOCK; |
1488 | LOCK; |
898 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
1489 | free_coro_mortal (aTHX); |
|
|
1490 | coro_mortal = prev_sv; |
899 | UNLOCK; |
1491 | UNLOCK; |
900 | } |
1492 | } |
901 | |
1493 | |
902 | static void |
1494 | static void |
903 | prepare_schedule (aTHX_ struct transfer_args *ta) |
|
|
904 | { |
|
|
905 | SV *current, *prev, *next; |
|
|
906 | |
|
|
907 | LOCK; |
|
|
908 | |
|
|
909 | current = GvSV (coro_current); |
|
|
910 | |
|
|
911 | for (;;) |
|
|
912 | { |
|
|
913 | LOCK; |
|
|
914 | |
|
|
915 | next = coro_deq (aTHX_ PRIO_MIN); |
|
|
916 | |
|
|
917 | if (next) |
|
|
918 | break; |
|
|
919 | |
|
|
920 | UNLOCK; |
|
|
921 | |
|
|
922 | { |
|
|
923 | dSP; |
|
|
924 | |
|
|
925 | ENTER; |
|
|
926 | SAVETMPS; |
|
|
927 | |
|
|
928 | PUSHMARK (SP); |
|
|
929 | PUTBACK; |
|
|
930 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
931 | |
|
|
932 | FREETMPS; |
|
|
933 | LEAVE; |
|
|
934 | } |
|
|
935 | } |
|
|
936 | |
|
|
937 | prev = SvRV (current); |
|
|
938 | SvRV (current) = next; |
|
|
939 | |
|
|
940 | /* free this only after the transfer */ |
|
|
941 | free_coro_mortal (); |
|
|
942 | coro_mortal = prev; |
|
|
943 | |
|
|
944 | ta->prev = SvSTATE (prev); |
|
|
945 | ta->next = SvSTATE (next); |
|
|
946 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
947 | |
|
|
948 | UNLOCK; |
|
|
949 | } |
|
|
950 | |
|
|
951 | static void |
|
|
952 | prepare_cede (aTHX_ struct transfer_args *ta) |
1495 | prepare_cede (pTHX_ struct transfer_args *ta) |
953 | { |
1496 | { |
954 | LOCK; |
1497 | api_ready (coro_current); |
955 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
956 | UNLOCK; |
|
|
957 | |
|
|
958 | prepare_schedule (ta); |
1498 | prepare_schedule (aTHX_ ta); |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | static int |
|
|
1502 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1503 | { |
|
|
1504 | if (coro_nready) |
|
|
1505 | { |
|
|
1506 | SV *prev = SvRV (coro_current); |
|
|
1507 | prepare_schedule (aTHX_ ta); |
|
|
1508 | api_ready (prev); |
|
|
1509 | return 1; |
|
|
1510 | } |
|
|
1511 | else |
|
|
1512 | return 0; |
959 | } |
1513 | } |
960 | |
1514 | |
961 | static void |
1515 | static void |
962 | api_schedule (void) |
1516 | api_schedule (void) |
963 | { |
1517 | { |
964 | dTHX; |
1518 | dTHX; |
965 | struct transfer_args ta; |
1519 | struct transfer_args ta; |
966 | |
1520 | |
967 | prepare_schedule (&ta); |
1521 | prepare_schedule (aTHX_ &ta); |
968 | TRANSFER (ta); |
1522 | TRANSFER (ta, 1); |
969 | } |
1523 | } |
970 | |
1524 | |
971 | static void |
1525 | static int |
972 | api_cede (void) |
1526 | api_cede (void) |
973 | { |
1527 | { |
974 | dTHX; |
1528 | dTHX; |
975 | struct transfer_args ta; |
1529 | struct transfer_args ta; |
976 | |
1530 | |
977 | prepare_cede (&ta); |
1531 | prepare_cede (aTHX_ &ta); |
|
|
1532 | |
|
|
1533 | if (expect_true (ta.prev != ta.next)) |
|
|
1534 | { |
978 | TRANSFER (ta); |
1535 | TRANSFER (ta, 1); |
|
|
1536 | return 1; |
|
|
1537 | } |
|
|
1538 | else |
|
|
1539 | return 0; |
979 | } |
1540 | } |
980 | |
1541 | |
|
|
1542 | static int |
|
|
1543 | api_cede_notself (void) |
|
|
1544 | { |
|
|
1545 | dTHX; |
|
|
1546 | struct transfer_args ta; |
|
|
1547 | |
|
|
1548 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1549 | { |
|
|
1550 | TRANSFER (ta, 1); |
|
|
1551 | return 1; |
|
|
1552 | } |
|
|
1553 | else |
|
|
1554 | return 0; |
|
|
1555 | } |
|
|
1556 | |
|
|
1557 | static void |
|
|
1558 | api_trace (SV *coro_sv, int flags) |
|
|
1559 | { |
|
|
1560 | dTHX; |
|
|
1561 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1562 | |
|
|
1563 | if (flags & CC_TRACE) |
|
|
1564 | { |
|
|
1565 | if (!coro->cctx) |
|
|
1566 | coro->cctx = cctx_new (); |
|
|
1567 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1568 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1569 | |
|
|
1570 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1571 | } |
|
|
1572 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1573 | { |
|
|
1574 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1575 | |
|
|
1576 | if (coro->flags & CF_RUNNING) |
|
|
1577 | PL_runops = RUNOPS_DEFAULT; |
|
|
1578 | else |
|
|
1579 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1580 | } |
|
|
1581 | } |
|
|
1582 | |
981 | MODULE = Coro::State PACKAGE = Coro::State |
1583 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
982 | |
1584 | |
983 | PROTOTYPES: DISABLE |
1585 | PROTOTYPES: DISABLE |
984 | |
1586 | |
985 | BOOT: |
1587 | BOOT: |
986 | { |
1588 | { |
987 | #ifdef USE_ITHREADS |
1589 | #ifdef USE_ITHREADS |
988 | MUTEX_INIT (&coro_mutex); |
1590 | MUTEX_INIT (&coro_mutex); |
989 | #endif |
1591 | #endif |
990 | BOOT_PAGESIZE; |
1592 | BOOT_PAGESIZE; |
991 | |
1593 | |
|
|
1594 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1595 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1596 | |
|
|
1597 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; |
|
|
1598 | PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1599 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; |
|
|
1600 | PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1601 | |
|
|
1602 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1603 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1604 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
1605 | |
992 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1606 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
993 | |
1607 | |
994 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1608 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
995 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1609 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
996 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1610 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1611 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
997 | |
1612 | |
998 | main_mainstack = PL_mainstack; |
1613 | main_mainstack = PL_mainstack; |
|
|
1614 | main_top_env = PL_top_env; |
|
|
1615 | |
|
|
1616 | while (main_top_env->je_prev) |
|
|
1617 | main_top_env = main_top_env->je_prev; |
999 | |
1618 | |
1000 | coroapi.ver = CORO_API_VERSION; |
1619 | coroapi.ver = CORO_API_VERSION; |
|
|
1620 | coroapi.rev = CORO_API_REVISION; |
1001 | coroapi.transfer = api_transfer; |
1621 | coroapi.transfer = api_transfer; |
1002 | |
|
|
1003 | Newz (0, main_stack, 1, coro_stack); |
|
|
1004 | main_stack->idle_sp = (void *)-1; |
|
|
1005 | |
1622 | |
1006 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1623 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1007 | } |
1624 | } |
1008 | |
1625 | |
1009 | SV * |
1626 | SV * |
1010 | new (char *klass, ...) |
1627 | new (char *klass, ...) |
1011 | CODE: |
1628 | CODE: |
1012 | { |
1629 | { |
1013 | struct coro *coro; |
1630 | struct coro *coro; |
|
|
1631 | MAGIC *mg; |
1014 | HV *hv; |
1632 | HV *hv; |
1015 | int i; |
1633 | int i; |
1016 | |
1634 | |
1017 | Newz (0, coro, 1, struct coro); |
1635 | Newz (0, coro, 1, struct coro); |
1018 | coro->args = newAV (); |
1636 | coro->args = newAV (); |
|
|
1637 | coro->flags = CF_NEW; |
1019 | |
1638 | |
|
|
1639 | if (coro_first) coro_first->prev = coro; |
|
|
1640 | coro->next = coro_first; |
|
|
1641 | coro_first = coro; |
|
|
1642 | |
1020 | hv = newHV (); |
1643 | coro->hv = hv = newHV (); |
1021 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1644 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1645 | mg->mg_flags |= MGf_DUP; |
1022 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1646 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1023 | |
1647 | |
|
|
1648 | av_extend (coro->args, items - 1); |
1024 | for (i = 1; i < items; i++) |
1649 | for (i = 1; i < items; i++) |
1025 | av_push (coro->args, newSVsv (ST (i))); |
1650 | av_push (coro->args, newSVsv (ST (i))); |
1026 | |
|
|
1027 | coro->stack = main_stack; |
|
|
1028 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
1029 | /*coro->stack = 0;*/ |
|
|
1030 | } |
1651 | } |
1031 | OUTPUT: |
1652 | OUTPUT: |
1032 | RETVAL |
1653 | RETVAL |
1033 | |
1654 | |
|
|
1655 | # these not obviously related functions are all rolled into the same xs |
|
|
1656 | # function to increase chances that they all will call transfer with the same |
|
|
1657 | # stack offset |
1034 | void |
1658 | void |
1035 | transfer (...) |
1659 | _set_stacklevel (...) |
1036 | ALIAS: |
1660 | ALIAS: |
1037 | Coro::schedule = 1 |
1661 | Coro::State::transfer = 1 |
1038 | Coro::cede = 2 |
1662 | Coro::schedule = 2 |
1039 | _set_stacklevel = 3 |
1663 | Coro::cede = 3 |
|
|
1664 | Coro::cede_notself = 4 |
1040 | CODE: |
1665 | CODE: |
1041 | { |
1666 | { |
1042 | struct transfer_args ta; |
1667 | struct transfer_args ta; |
1043 | |
1668 | |
|
|
1669 | PUTBACK; |
1044 | switch (ix) |
1670 | switch (ix) |
1045 | { |
1671 | { |
1046 | case 0: |
1672 | case 0: |
1047 | if (items != 3) |
1673 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1048 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1674 | ta.next = 0; |
1049 | |
|
|
1050 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
|
|
1051 | break; |
1675 | break; |
1052 | |
1676 | |
1053 | case 1: |
1677 | case 1: |
1054 | prepare_schedule (&ta); |
1678 | if (items != 2) |
|
|
1679 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1680 | |
|
|
1681 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1055 | break; |
1682 | break; |
1056 | |
1683 | |
1057 | case 2: |
1684 | case 2: |
1058 | prepare_cede (&ta); |
1685 | prepare_schedule (aTHX_ &ta); |
1059 | break; |
1686 | break; |
1060 | |
1687 | |
1061 | case 3: |
1688 | case 3: |
1062 | ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0))); |
1689 | prepare_cede (aTHX_ &ta); |
1063 | ta.next = 0; |
1690 | break; |
1064 | ta.flags = TRANSFER_SET_STACKLEVEL; |
1691 | |
|
|
1692 | case 4: |
|
|
1693 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1694 | XSRETURN_EMPTY; |
|
|
1695 | |
1065 | break; |
1696 | break; |
1066 | } |
1697 | } |
|
|
1698 | SPAGAIN; |
1067 | |
1699 | |
|
|
1700 | BARRIER; |
|
|
1701 | PUTBACK; |
1068 | TRANSFER (ta); |
1702 | TRANSFER (ta, 0); |
|
|
1703 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1704 | /* be extra careful not to ever do anything after TRANSFER */ |
1069 | } |
1705 | } |
|
|
1706 | |
|
|
1707 | bool |
|
|
1708 | _destroy (SV *coro_sv) |
|
|
1709 | CODE: |
|
|
1710 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1711 | OUTPUT: |
|
|
1712 | RETVAL |
1070 | |
1713 | |
1071 | void |
1714 | void |
1072 | _clone_state_from (SV *dst, SV *src) |
|
|
1073 | CODE: |
|
|
1074 | { |
|
|
1075 | struct coro *coro_src = SvSTATE (src); |
|
|
1076 | |
|
|
1077 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1078 | |
|
|
1079 | ++coro_src->refcnt; |
|
|
1080 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1081 | } |
|
|
1082 | |
|
|
1083 | void |
|
|
1084 | _nonlocal_goto (IV nextop) |
|
|
1085 | CODE: |
|
|
1086 | /* uuh, somebody will kill me again for this */ |
|
|
1087 | PL_op->op_next = INT2PTR (OP *, nextop); |
|
|
1088 | |
|
|
1089 | void |
|
|
1090 | _exit (code) |
1715 | _exit (int code) |
1091 | int code |
|
|
1092 | PROTOTYPE: $ |
1716 | PROTOTYPE: $ |
1093 | CODE: |
1717 | CODE: |
1094 | _exit (code); |
1718 | _exit (code); |
1095 | |
1719 | |
1096 | MODULE = Coro::State PACKAGE = Coro::Cont |
1720 | int |
|
|
1721 | cctx_stacksize (int new_stacksize = 0) |
|
|
1722 | CODE: |
|
|
1723 | RETVAL = coro_stacksize; |
|
|
1724 | if (new_stacksize) |
|
|
1725 | coro_stacksize = new_stacksize; |
|
|
1726 | OUTPUT: |
|
|
1727 | RETVAL |
|
|
1728 | |
|
|
1729 | int |
|
|
1730 | cctx_count () |
|
|
1731 | CODE: |
|
|
1732 | RETVAL = cctx_count; |
|
|
1733 | OUTPUT: |
|
|
1734 | RETVAL |
|
|
1735 | |
|
|
1736 | int |
|
|
1737 | cctx_idle () |
|
|
1738 | CODE: |
|
|
1739 | RETVAL = cctx_idle; |
|
|
1740 | OUTPUT: |
|
|
1741 | RETVAL |
1097 | |
1742 | |
1098 | void |
1743 | void |
1099 | yield (...) |
1744 | list () |
1100 | PROTOTYPE: @ |
1745 | PPCODE: |
|
|
1746 | { |
|
|
1747 | struct coro *coro; |
|
|
1748 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1749 | if (coro->hv) |
|
|
1750 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1751 | } |
|
|
1752 | |
|
|
1753 | void |
|
|
1754 | call (Coro::State coro, SV *coderef) |
|
|
1755 | ALIAS: |
|
|
1756 | eval = 1 |
|
|
1757 | CODE: |
|
|
1758 | { |
|
|
1759 | if (coro->mainstack) |
|
|
1760 | { |
|
|
1761 | struct coro temp; |
|
|
1762 | |
|
|
1763 | if (!(coro->flags & CF_RUNNING)) |
|
|
1764 | { |
|
|
1765 | PUTBACK; |
|
|
1766 | save_perl (aTHX_ &temp); |
|
|
1767 | load_perl (aTHX_ coro); |
|
|
1768 | } |
|
|
1769 | |
|
|
1770 | { |
|
|
1771 | dSP; |
|
|
1772 | ENTER; |
|
|
1773 | SAVETMPS; |
|
|
1774 | PUTBACK; |
|
|
1775 | PUSHSTACK; |
|
|
1776 | PUSHMARK (SP); |
|
|
1777 | |
|
|
1778 | if (ix) |
|
|
1779 | eval_sv (coderef, 0); |
|
|
1780 | else |
|
|
1781 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1782 | |
|
|
1783 | POPSTACK; |
|
|
1784 | SPAGAIN; |
|
|
1785 | FREETMPS; |
|
|
1786 | LEAVE; |
|
|
1787 | PUTBACK; |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | if (!(coro->flags & CF_RUNNING)) |
|
|
1791 | { |
|
|
1792 | save_perl (aTHX_ coro); |
|
|
1793 | load_perl (aTHX_ &temp); |
|
|
1794 | SPAGAIN; |
|
|
1795 | } |
|
|
1796 | } |
|
|
1797 | } |
|
|
1798 | |
|
|
1799 | SV * |
|
|
1800 | is_ready (Coro::State coro) |
|
|
1801 | PROTOTYPE: $ |
|
|
1802 | ALIAS: |
|
|
1803 | is_ready = CF_READY |
|
|
1804 | is_running = CF_RUNNING |
|
|
1805 | is_new = CF_NEW |
|
|
1806 | is_destroyed = CF_DESTROYED |
|
|
1807 | CODE: |
|
|
1808 | RETVAL = boolSV (coro->flags & ix); |
|
|
1809 | OUTPUT: |
|
|
1810 | RETVAL |
|
|
1811 | |
|
|
1812 | void |
|
|
1813 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1814 | |
|
|
1815 | SV * |
|
|
1816 | has_cctx (Coro::State coro) |
|
|
1817 | PROTOTYPE: $ |
|
|
1818 | CODE: |
|
|
1819 | RETVAL = boolSV (!!coro->cctx); |
|
|
1820 | OUTPUT: |
|
|
1821 | RETVAL |
|
|
1822 | |
|
|
1823 | int |
|
|
1824 | is_traced (Coro::State coro) |
|
|
1825 | PROTOTYPE: $ |
|
|
1826 | CODE: |
|
|
1827 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1828 | OUTPUT: |
|
|
1829 | RETVAL |
|
|
1830 | |
|
|
1831 | IV |
|
|
1832 | rss (Coro::State coro) |
|
|
1833 | PROTOTYPE: $ |
|
|
1834 | ALIAS: |
|
|
1835 | usecount = 1 |
1101 | CODE: |
1836 | CODE: |
1102 | { |
1837 | switch (ix) |
1103 | SV *yieldstack; |
1838 | { |
1104 | SV *sv; |
1839 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
1105 | AV *defav = GvAV (PL_defgv); |
1840 | case 1: RETVAL = coro->usecount; break; |
1106 | struct coro *prev, *next; |
|
|
1107 | |
|
|
1108 | yieldstack = *hv_fetch ( |
|
|
1109 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1110 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1111 | 0 |
1841 | } |
1112 | ); |
1842 | OUTPUT: |
|
|
1843 | RETVAL |
1113 | |
1844 | |
1114 | /* set up @_ -- ugly */ |
1845 | void |
1115 | av_clear (defav); |
1846 | force_cctx () |
1116 | av_fill (defav, items - 1); |
1847 | CODE: |
1117 | while (items--) |
1848 | struct coro *coro = SvSTATE (coro_current); |
1118 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1849 | coro->cctx->idle_sp = 0; |
1119 | |
|
|
1120 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1121 | prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1122 | next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1123 | SvREFCNT_dec (sv); |
|
|
1124 | |
|
|
1125 | coro_state_transfer (aTHX_ prev, next, 0); |
|
|
1126 | } |
|
|
1127 | |
1850 | |
1128 | MODULE = Coro::State PACKAGE = Coro |
1851 | MODULE = Coro::State PACKAGE = Coro |
1129 | |
1852 | |
1130 | BOOT: |
1853 | BOOT: |
1131 | { |
1854 | { |
1132 | int i; |
1855 | int i; |
1133 | |
1856 | |
|
|
1857 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
1858 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
1859 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
1860 | |
|
|
1861 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
1862 | SvREADONLY_on (coro_current); |
|
|
1863 | |
1134 | coro_stash = gv_stashpv ("Coro", TRUE); |
1864 | coro_stash = gv_stashpv ("Coro", TRUE); |
1135 | |
1865 | |
1136 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1866 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1137 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1867 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1138 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1868 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1139 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1869 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1140 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1870 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1141 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1871 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1142 | |
1872 | |
1143 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1144 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1145 | |
|
|
1146 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1873 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1147 | coro_ready[i] = newAV (); |
1874 | coro_ready[i] = newAV (); |
1148 | |
1875 | |
1149 | { |
1876 | { |
1150 | SV *sv = perl_get_sv("Coro::API", 1); |
1877 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1878 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1151 | |
1879 | |
1152 | coroapi.schedule = api_schedule; |
1880 | coroapi.schedule = api_schedule; |
1153 | coroapi.cede = api_cede; |
1881 | coroapi.cede = api_cede; |
|
|
1882 | coroapi.cede_notself = api_cede_notself; |
1154 | coroapi.ready = api_ready; |
1883 | coroapi.ready = api_ready; |
|
|
1884 | coroapi.is_ready = api_is_ready; |
1155 | coroapi.nready = &coro_nready; |
1885 | coroapi.nready = &coro_nready; |
1156 | coroapi.current = coro_current; |
1886 | coroapi.current = coro_current; |
1157 | |
1887 | |
1158 | GCoroAPI = &coroapi; |
1888 | GCoroAPI = &coroapi; |
1159 | sv_setiv (sv, (IV)&coroapi); |
1889 | sv_setiv (sv, (IV)&coroapi); |
1160 | SvREADONLY_on (sv); |
1890 | SvREADONLY_on (sv); |
1161 | } |
1891 | } |
1162 | } |
1892 | } |
|
|
1893 | |
|
|
1894 | void |
|
|
1895 | _set_current (SV *current) |
|
|
1896 | PROTOTYPE: $ |
|
|
1897 | CODE: |
|
|
1898 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1899 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
|
|
1900 | |
|
|
1901 | void |
|
|
1902 | _set_readyhook (SV *hook) |
|
|
1903 | PROTOTYPE: $ |
|
|
1904 | CODE: |
|
|
1905 | LOCK; |
|
|
1906 | SvREFCNT_dec (coro_readyhook); |
|
|
1907 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
|
|
1908 | UNLOCK; |
1163 | |
1909 | |
1164 | int |
1910 | int |
1165 | prio (Coro::State coro, int newprio = 0) |
1911 | prio (Coro::State coro, int newprio = 0) |
1166 | ALIAS: |
1912 | ALIAS: |
1167 | nice = 1 |
1913 | nice = 1 |
… | |
… | |
1170 | RETVAL = coro->prio; |
1916 | RETVAL = coro->prio; |
1171 | |
1917 | |
1172 | if (items > 1) |
1918 | if (items > 1) |
1173 | { |
1919 | { |
1174 | if (ix) |
1920 | if (ix) |
1175 | newprio += coro->prio; |
1921 | newprio = coro->prio - newprio; |
1176 | |
1922 | |
1177 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1923 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1178 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1924 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1179 | |
1925 | |
1180 | coro->prio = newprio; |
1926 | coro->prio = newprio; |
1181 | } |
1927 | } |
1182 | } |
1928 | } |
|
|
1929 | OUTPUT: |
|
|
1930 | RETVAL |
1183 | |
1931 | |
1184 | void |
1932 | SV * |
1185 | ready (SV *self) |
1933 | ready (SV *self) |
1186 | PROTOTYPE: $ |
1934 | PROTOTYPE: $ |
1187 | CODE: |
1935 | CODE: |
1188 | api_ready (self); |
1936 | RETVAL = boolSV (api_ready (self)); |
|
|
1937 | OUTPUT: |
|
|
1938 | RETVAL |
1189 | |
1939 | |
1190 | int |
1940 | int |
1191 | nready (...) |
1941 | nready (...) |
1192 | PROTOTYPE: |
1942 | PROTOTYPE: |
1193 | CODE: |
1943 | CODE: |
1194 | RETVAL = coro_nready; |
1944 | RETVAL = coro_nready; |
1195 | OUTPUT: |
1945 | OUTPUT: |
1196 | RETVAL |
1946 | RETVAL |
1197 | |
1947 | |
|
|
1948 | void |
|
|
1949 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1950 | PROTOTYPE: $;$ |
|
|
1951 | CODE: |
|
|
1952 | SvREFCNT_dec (self->throw); |
|
|
1953 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1954 | |
|
|
1955 | void |
|
|
1956 | swap_defsv (Coro::State self) |
|
|
1957 | PROTOTYPE: $ |
|
|
1958 | ALIAS: |
|
|
1959 | swap_defav = 1 |
|
|
1960 | CODE: |
|
|
1961 | if (!self->slot) |
|
|
1962 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
1963 | else |
|
|
1964 | { |
|
|
1965 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
1966 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
1967 | |
|
|
1968 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
1969 | } |
|
|
1970 | |
|
|
1971 | # for async_pool speedup |
|
|
1972 | void |
|
|
1973 | _pool_1 (SV *cb) |
|
|
1974 | CODE: |
|
|
1975 | { |
|
|
1976 | struct coro *coro = SvSTATE (coro_current); |
|
|
1977 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1978 | AV *defav = GvAV (PL_defgv); |
|
|
1979 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1980 | AV *invoke_av; |
|
|
1981 | int i, len; |
|
|
1982 | |
|
|
1983 | if (!invoke) |
|
|
1984 | { |
|
|
1985 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
|
|
1986 | croak ("\3async_pool terminate\2\n"); |
|
|
1987 | } |
|
|
1988 | |
|
|
1989 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1990 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1991 | |
|
|
1992 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1993 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1994 | |
|
|
1995 | invoke_av = (AV *)SvRV (invoke); |
|
|
1996 | len = av_len (invoke_av); |
|
|
1997 | |
|
|
1998 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1999 | |
|
|
2000 | if (len > 0) |
|
|
2001 | { |
|
|
2002 | av_fill (defav, len - 1); |
|
|
2003 | for (i = 0; i < len; ++i) |
|
|
2004 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
2005 | } |
|
|
2006 | |
|
|
2007 | SvREFCNT_dec (invoke); |
|
|
2008 | } |
|
|
2009 | |
|
|
2010 | void |
|
|
2011 | _pool_2 (SV *cb) |
|
|
2012 | CODE: |
|
|
2013 | { |
|
|
2014 | struct coro *coro = SvSTATE (coro_current); |
|
|
2015 | |
|
|
2016 | sv_setsv (cb, &PL_sv_undef); |
|
|
2017 | |
|
|
2018 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2019 | coro->saved_deffh = 0; |
|
|
2020 | |
|
|
2021 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
2022 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2023 | { |
|
|
2024 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
|
|
2025 | croak ("\3async_pool terminate\2\n"); |
|
|
2026 | } |
|
|
2027 | |
|
|
2028 | av_clear (GvAV (PL_defgv)); |
|
|
2029 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2030 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2031 | |
|
|
2032 | coro->prio = 0; |
|
|
2033 | |
|
|
2034 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2035 | api_trace (coro_current, 0); |
|
|
2036 | |
|
|
2037 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2038 | } |
|
|
2039 | |
|
|
2040 | |
1198 | MODULE = Coro::State PACKAGE = Coro::AIO |
2041 | MODULE = Coro::State PACKAGE = Coro::AIO |
1199 | |
2042 | |
1200 | SV * |
2043 | SV * |
1201 | _get_state () |
2044 | _get_state () |
1202 | CODE: |
2045 | CODE: |
1203 | { |
2046 | { |
1204 | struct { |
2047 | struct io_state *data; |
1205 | int errorno; |
|
|
1206 | int laststype; |
|
|
1207 | int laststatval; |
|
|
1208 | Stat_t statcache; |
|
|
1209 | } data; |
|
|
1210 | |
2048 | |
|
|
2049 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
2050 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
2051 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
2052 | SvPOK_only (RETVAL); |
|
|
2053 | |
1211 | data.errorno = errno; |
2054 | data->errorno = errno; |
1212 | data.laststype = PL_laststype; |
2055 | data->laststype = PL_laststype; |
1213 | data.laststatval = PL_laststatval; |
2056 | data->laststatval = PL_laststatval; |
1214 | data.statcache = PL_statcache; |
2057 | data->statcache = PL_statcache; |
1215 | |
|
|
1216 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1217 | } |
2058 | } |
1218 | OUTPUT: |
2059 | OUTPUT: |
1219 | RETVAL |
2060 | RETVAL |
1220 | |
2061 | |
1221 | void |
2062 | void |
1222 | _set_state (char *data_) |
2063 | _set_state (char *data_) |
1223 | PROTOTYPE: $ |
2064 | PROTOTYPE: $ |
1224 | CODE: |
2065 | CODE: |
1225 | { |
2066 | { |
1226 | struct { |
2067 | struct io_state *data = (void *)data_; |
1227 | int errorno; |
|
|
1228 | int laststype; |
|
|
1229 | int laststatval; |
|
|
1230 | Stat_t statcache; |
|
|
1231 | } *data = (void *)data_; |
|
|
1232 | |
2068 | |
1233 | errno = data->errorno; |
2069 | errno = data->errorno; |
1234 | PL_laststype = data->laststype; |
2070 | PL_laststype = data->laststype; |
1235 | PL_laststatval = data->laststatval; |
2071 | PL_laststatval = data->laststatval; |
1236 | PL_statcache = data->statcache; |
2072 | PL_statcache = data->statcache; |
1237 | } |
2073 | } |
|
|
2074 | |
|
|
2075 | |
|
|
2076 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2077 | |
|
|
2078 | BOOT: |
|
|
2079 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2080 | |
|
|
2081 | SV * |
|
|
2082 | _schedule () |
|
|
2083 | PROTOTYPE: @ |
|
|
2084 | CODE: |
|
|
2085 | { |
|
|
2086 | static int incede; |
|
|
2087 | |
|
|
2088 | api_cede_notself (); |
|
|
2089 | |
|
|
2090 | ++incede; |
|
|
2091 | while (coro_nready >= incede && api_cede ()) |
|
|
2092 | ; |
|
|
2093 | |
|
|
2094 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2095 | if (coro_nready >= incede) |
|
|
2096 | { |
|
|
2097 | PUSHMARK (SP); |
|
|
2098 | PUTBACK; |
|
|
2099 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2100 | SPAGAIN; |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | --incede; |
|
|
2104 | } |
|
|
2105 | |