… | |
… | |
46 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
47 | #endif |
47 | #endif |
48 | |
48 | |
49 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
50 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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52 | #else |
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53 | # define REGISTER_STACK(cctx,start,end) |
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54 | #endif |
51 | #endif |
55 | |
52 | |
56 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
57 | static int cctx_max_idle = 4; |
54 | static int cctx_max_idle = 4; |
58 | |
55 | |
… | |
… | |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
120 | #endif |
117 | #endif |
121 | |
118 | |
122 | /* The next macros try to return the current stack pointer, in an as |
119 | /* The next macros try to return the current stack pointer, in an as |
123 | * portable way as possible. */ |
120 | * portable way as possible. */ |
124 | #define dSTACKLEVEL volatile char stacklevel |
121 | #if __GNUC__ >= 4 |
125 | #define STACKLEVEL ((void *)&stacklevel) |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
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123 | #else |
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124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
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125 | #endif |
126 | |
126 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
128 | |
128 | |
129 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
130 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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132 | # define INLINE static inline |
133 | #else |
133 | #else |
134 | # define attribute(x) |
134 | # define attribute(x) |
135 | # define BARRIER |
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136 | # define expect(expr,value) (expr) |
135 | # define expect(expr,value) (expr) |
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136 | # define INLINE static |
137 | #endif |
137 | #endif |
138 | |
138 | |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
141 | |
142 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
143 | |
143 | |
144 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
145 | |
145 | |
146 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
147 | |
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|
148 | static perl_mutex coro_lock; |
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149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
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150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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151 | # if CORO_PTHREAD |
147 | # if CORO_PTHREAD |
152 | static void *coro_thx; |
148 | static void *coro_thx; |
153 | # endif |
149 | # endif |
154 | |
|
|
155 | #else |
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156 | |
|
|
157 | # define LOCK (void)0 |
|
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158 | # define UNLOCK (void)0 |
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159 | |
|
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160 | #endif |
150 | #endif |
161 | |
|
|
162 | # undef LOCK |
|
|
163 | # define LOCK (void)0 |
|
|
164 | # undef UNLOCK |
|
|
165 | # define UNLOCK (void)0 |
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|
166 | |
151 | |
167 | /* helper storage struct for Coro::AIO */ |
152 | /* helper storage struct for Coro::AIO */ |
168 | struct io_state |
153 | struct io_state |
169 | { |
154 | { |
170 | AV *res; |
155 | AV *res; |
… | |
… | |
181 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
184 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
186 | static volatile struct coro *transfer_next; |
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187 | |
|
|
188 | struct transfer_args |
|
|
189 | { |
|
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190 | struct coro *prev, *next; |
|
|
191 | }; |
|
|
192 | |
171 | |
193 | static GV *irsgv; /* $/ */ |
172 | static GV *irsgv; /* $/ */ |
194 | static GV *stdoutgv; /* *STDOUT */ |
173 | static GV *stdoutgv; /* *STDOUT */ |
195 | static SV *rv_diehook; |
174 | static SV *rv_diehook; |
196 | static SV *rv_warnhook; |
175 | static SV *rv_warnhook; |
… | |
… | |
215 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
216 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
217 | }; |
196 | }; |
218 | |
197 | |
219 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
220 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
|
|
200 | { |
221 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
222 | |
202 | |
223 | /* the stack */ |
203 | /* the stack */ |
224 | void *sptr; |
204 | void *sptr; |
225 | size_t ssize; |
205 | size_t ssize; |
… | |
… | |
243 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
244 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
245 | }; |
225 | }; |
246 | |
226 | |
247 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
248 | typedef struct { |
228 | typedef struct |
|
|
229 | { |
249 | SV *defsv; |
230 | SV *defsv; |
250 | AV *defav; |
231 | AV *defav; |
251 | SV *errsv; |
232 | SV *errsv; |
252 | SV *irsgv; |
233 | SV *irsgv; |
253 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
… | |
… | |
257 | |
238 | |
258 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
239 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
259 | |
240 | |
260 | /* this is a structure representing a perl-level coroutine */ |
241 | /* this is a structure representing a perl-level coroutine */ |
261 | struct coro { |
242 | struct coro { |
262 | /* the c coroutine allocated to this perl coroutine, if any */ |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
263 | coro_cctx *cctx; |
244 | coro_cctx *cctx; |
264 | |
245 | |
265 | /* process data */ |
246 | /* state data */ |
|
|
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
266 | AV *mainstack; |
248 | AV *mainstack; |
267 | perl_slots *slot; /* basically the saved sp */ |
249 | perl_slots *slot; /* basically the saved sp */ |
268 | |
250 | |
269 | AV *args; /* data associated with this coroutine (initial args) */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
270 | int refcnt; /* coroutines are refcounted, yes */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
271 | int flags; /* CF_ flags */ |
253 | int flags; /* CF_ flags */ |
272 | HV *hv; /* the perl hash associated with this coro, if any */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
|
|
255 | void (*on_destroy)(pTHX_ struct coro *coro); |
273 | |
256 | |
274 | /* statistics */ |
257 | /* statistics */ |
275 | int usecount; /* number of transfers to this coro */ |
258 | int usecount; /* number of transfers to this coro */ |
276 | |
259 | |
277 | /* coro process data */ |
260 | /* coro process data */ |
… | |
… | |
285 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
286 | }; |
269 | }; |
287 | |
270 | |
288 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
289 | typedef struct coro *Coro__State_or_hashref; |
272 | typedef struct coro *Coro__State_or_hashref; |
|
|
273 | |
|
|
274 | /* the following variables are effectively part of the perl context */ |
|
|
275 | /* and get copied between struct coro and these variables */ |
|
|
276 | /* the mainr easonw e don't support windows process emulation */ |
|
|
277 | static struct CoroSLF slf_frame; /* the current slf frame */ |
|
|
278 | static SV *coro_throw; |
290 | |
279 | |
291 | /** Coro ********************************************************************/ |
280 | /** Coro ********************************************************************/ |
292 | |
281 | |
293 | #define PRIO_MAX 3 |
282 | #define PRIO_MAX 3 |
294 | #define PRIO_HIGH 1 |
283 | #define PRIO_HIGH 1 |
… | |
… | |
299 | |
288 | |
300 | /* for Coro.pm */ |
289 | /* for Coro.pm */ |
301 | static SV *coro_current; |
290 | static SV *coro_current; |
302 | static SV *coro_readyhook; |
291 | static SV *coro_readyhook; |
303 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
292 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
304 | static int coro_nready; |
|
|
305 | static struct coro *coro_first; |
293 | static struct coro *coro_first; |
|
|
294 | #define coro_nready coroapi.nready |
306 | |
295 | |
307 | /** lowlevel stuff **********************************************************/ |
296 | /** lowlevel stuff **********************************************************/ |
308 | |
297 | |
309 | static SV * |
298 | static SV * |
310 | coro_get_sv (pTHX_ const char *name, int create) |
299 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
403 | static MGVTBL coro_cv_vtbl = { |
392 | static MGVTBL coro_cv_vtbl = { |
404 | 0, 0, 0, 0, |
393 | 0, 0, 0, 0, |
405 | coro_cv_free |
394 | coro_cv_free |
406 | }; |
395 | }; |
407 | |
396 | |
408 | #define CORO_MAGIC(sv, type) \ |
397 | #define CORO_MAGIC(sv, type) \ |
409 | SvMAGIC (sv) \ |
398 | expect_true (SvMAGIC (sv)) \ |
410 | ? SvMAGIC (sv)->mg_type == type \ |
399 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
411 | ? SvMAGIC (sv) \ |
400 | ? SvMAGIC (sv) \ |
412 | : mg_find (sv, type) \ |
401 | : mg_find (sv, type) \ |
413 | : 0 |
402 | : 0 |
414 | |
403 | |
415 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
404 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
416 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
405 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
417 | |
406 | |
418 | static struct coro * |
407 | INLINE struct coro * |
419 | SvSTATE_ (pTHX_ SV *coro) |
408 | SvSTATE_ (pTHX_ SV *coro) |
420 | { |
409 | { |
421 | HV *stash; |
410 | HV *stash; |
422 | MAGIC *mg; |
411 | MAGIC *mg; |
423 | |
412 | |
… | |
… | |
438 | mg = CORO_MAGIC_state (coro); |
427 | mg = CORO_MAGIC_state (coro); |
439 | return (struct coro *)mg->mg_ptr; |
428 | return (struct coro *)mg->mg_ptr; |
440 | } |
429 | } |
441 | |
430 | |
442 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
431 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
432 | |
|
|
433 | /* fastert than SvSTATE, but expects a coroutine hv */ |
|
|
434 | INLINE struct coro * |
|
|
435 | SvSTATE_hv (SV *sv) |
|
|
436 | { |
|
|
437 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
438 | ? SvMAGIC (sv) |
|
|
439 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
440 | |
|
|
441 | return (struct coro *)mg->mg_ptr; |
|
|
442 | } |
|
|
443 | |
|
|
444 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
443 | |
445 | |
444 | /* the next two functions merely cache the padlists */ |
446 | /* the next two functions merely cache the padlists */ |
445 | static void |
447 | static void |
446 | get_padlist (pTHX_ CV *cv) |
448 | get_padlist (pTHX_ CV *cv) |
447 | { |
449 | { |
… | |
… | |
514 | CvPADLIST (cv) = (AV *)POPs; |
516 | CvPADLIST (cv) = (AV *)POPs; |
515 | } |
517 | } |
516 | |
518 | |
517 | PUTBACK; |
519 | PUTBACK; |
518 | } |
520 | } |
|
|
521 | |
|
|
522 | slf_frame = c->slf_frame; |
|
|
523 | coro_throw = c->throw; |
519 | } |
524 | } |
520 | |
525 | |
521 | static void |
526 | static void |
522 | save_perl (pTHX_ Coro__State c) |
527 | save_perl (pTHX_ Coro__State c) |
523 | { |
528 | { |
|
|
529 | c->throw = coro_throw; |
|
|
530 | c->slf_frame = slf_frame; |
|
|
531 | |
524 | { |
532 | { |
525 | dSP; |
533 | dSP; |
526 | I32 cxix = cxstack_ix; |
534 | I32 cxix = cxstack_ix; |
527 | PERL_CONTEXT *ccstk = cxstack; |
535 | PERL_CONTEXT *ccstk = cxstack; |
528 | PERL_SI *top_si = PL_curstackinfo; |
536 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
595 | #undef VAR |
603 | #undef VAR |
596 | } |
604 | } |
597 | } |
605 | } |
598 | |
606 | |
599 | /* |
607 | /* |
600 | * allocate various perl stacks. This is an exact copy |
608 | * allocate various perl stacks. This is almost an exact copy |
601 | * of perl.c:init_stacks, except that it uses less memory |
609 | * of perl.c:init_stacks, except that it uses less memory |
602 | * on the (sometimes correct) assumption that coroutines do |
610 | * on the (sometimes correct) assumption that coroutines do |
603 | * not usually need a lot of stackspace. |
611 | * not usually need a lot of stackspace. |
604 | */ |
612 | */ |
605 | #if CORO_PREFER_PERL_FUNCTIONS |
613 | #if CORO_PREFER_PERL_FUNCTIONS |
… | |
… | |
807 | |
815 | |
808 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
816 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
809 | } |
817 | } |
810 | |
818 | |
811 | static void |
819 | static void |
|
|
820 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
821 | { |
|
|
822 | /* kind of mega-hacky, but works */ |
|
|
823 | ta->next = ta->prev = (struct coro *)ta; |
|
|
824 | } |
|
|
825 | |
|
|
826 | static int |
|
|
827 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
828 | { |
|
|
829 | return 0; |
|
|
830 | } |
|
|
831 | |
|
|
832 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
812 | coro_setup (pTHX_ struct coro *coro) |
833 | coro_setup (pTHX_ struct coro *coro) |
813 | { |
834 | { |
814 | /* |
835 | /* |
815 | * emulate part of the perl startup here. |
836 | * emulate part of the perl startup here. |
816 | */ |
837 | */ |
… | |
… | |
855 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
876 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
856 | SPAGAIN; |
877 | SPAGAIN; |
857 | } |
878 | } |
858 | |
879 | |
859 | /* this newly created coroutine might be run on an existing cctx which most |
880 | /* this newly created coroutine might be run on an existing cctx which most |
860 | * likely was suspended in set_stacklevel, called from entersub. |
881 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
861 | * set_stacklevel doesn't do anything on return, but entersub does LEAVE, |
|
|
862 | * so we ENTER here for symmetry. |
|
|
863 | */ |
882 | */ |
864 | ENTER; |
883 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
884 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
885 | |
|
|
886 | coro_throw = coro->throw; |
865 | } |
887 | } |
866 | |
888 | |
867 | static void |
889 | static void |
868 | coro_destruct (pTHX_ struct coro *coro) |
890 | coro_destruct (pTHX_ struct coro *coro) |
869 | { |
891 | { |
… | |
… | |
893 | |
915 | |
894 | SvREFCNT_dec (PL_diehook); |
916 | SvREFCNT_dec (PL_diehook); |
895 | SvREFCNT_dec (PL_warnhook); |
917 | SvREFCNT_dec (PL_warnhook); |
896 | |
918 | |
897 | SvREFCNT_dec (coro->saved_deffh); |
919 | SvREFCNT_dec (coro->saved_deffh); |
898 | SvREFCNT_dec (coro->throw); |
920 | SvREFCNT_dec (coro_throw); |
899 | |
921 | |
900 | coro_destruct_stacks (aTHX); |
922 | coro_destruct_stacks (aTHX); |
901 | } |
923 | } |
902 | |
924 | |
903 | static void |
925 | INLINE void |
904 | free_coro_mortal (pTHX) |
926 | free_coro_mortal (pTHX) |
905 | { |
927 | { |
906 | if (expect_true (coro_mortal)) |
928 | if (expect_true (coro_mortal)) |
907 | { |
929 | { |
908 | SvREFCNT_dec (coro_mortal); |
930 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
913 | static int |
935 | static int |
914 | runops_trace (pTHX) |
936 | runops_trace (pTHX) |
915 | { |
937 | { |
916 | COP *oldcop = 0; |
938 | COP *oldcop = 0; |
917 | int oldcxix = -2; |
939 | int oldcxix = -2; |
918 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
940 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
919 | coro_cctx *cctx = coro->cctx; |
941 | coro_cctx *cctx = coro->cctx; |
920 | |
942 | |
921 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
943 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
922 | { |
944 | { |
923 | PERL_ASYNC_CHECK (); |
945 | PERL_ASYNC_CHECK (); |
… | |
… | |
1033 | TAINT_NOT; |
1055 | TAINT_NOT; |
1034 | return 0; |
1056 | return 0; |
1035 | } |
1057 | } |
1036 | |
1058 | |
1037 | static void |
1059 | static void |
1038 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1060 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1039 | { |
1061 | { |
1040 | ta->prev = (struct coro *)cctx; |
1062 | ta->prev = (struct coro *)cctx; |
1041 | ta->next = 0; |
1063 | ta->next = 0; |
1042 | } |
1064 | } |
1043 | |
1065 | |
… | |
… | |
1068 | PL_op = (OP *)&myop; |
1090 | PL_op = (OP *)&myop; |
1069 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1091 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1070 | SPAGAIN; |
1092 | SPAGAIN; |
1071 | } |
1093 | } |
1072 | |
1094 | |
1073 | /* the tail of transfer: execute stuff we can onyl do afetr a transfer */ |
1095 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1074 | static void |
1096 | INLINE void |
1075 | transfer_tail (void) |
1097 | transfer_tail (pTHX) |
1076 | { |
1098 | { |
1077 | struct coro *next = (struct coro *)transfer_next; |
|
|
1078 | transfer_next = 0; //D for temporary assertion in transfer |
|
|
1079 | assert (("FATAL ERROR: internal error 1067 in Coro module, please report", next));//D |
|
|
1080 | |
|
|
1081 | free_coro_mortal (aTHX); |
1099 | free_coro_mortal (aTHX); |
1082 | UNLOCK; |
|
|
1083 | |
|
|
1084 | if (expect_false (next->throw)) |
|
|
1085 | { |
|
|
1086 | SV *exception = sv_2mortal (next->throw); |
|
|
1087 | |
|
|
1088 | next->throw = 0; |
|
|
1089 | sv_setsv (ERRSV, exception); |
|
|
1090 | croak (0); |
|
|
1091 | } |
|
|
1092 | } |
1100 | } |
1093 | |
1101 | |
1094 | /* |
1102 | /* |
1095 | * this is a _very_ stripped down perl interpreter ;) |
1103 | * this is a _very_ stripped down perl interpreter ;) |
1096 | */ |
1104 | */ |
… | |
… | |
1103 | # endif |
1111 | # endif |
1104 | #endif |
1112 | #endif |
1105 | { |
1113 | { |
1106 | dTHX; |
1114 | dTHX; |
1107 | |
1115 | |
1108 | /* entersub called ENTER, but we never 'returned', undo that here */ |
1116 | /* normally we would need to skip the entersub here */ |
1109 | LEAVE; |
1117 | /* not doing so will re-execute it, which is exactly what we want */ |
1110 | |
|
|
1111 | /* we now skip the entersub that did lead to transfer() */ |
|
|
1112 | PL_op = PL_op->op_next; |
1118 | /* PL_nop = PL_nop->op_next */ |
1113 | |
1119 | |
1114 | /* inject a fake subroutine call to cctx_init */ |
1120 | /* inject a fake subroutine call to cctx_init */ |
1115 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1121 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1116 | |
1122 | |
1117 | /* cctx_run is the alternative tail of transfer() */ |
1123 | /* cctx_run is the alternative tail of transfer() */ |
1118 | transfer_tail (); |
1124 | transfer_tail (aTHX); |
1119 | |
1125 | |
1120 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1126 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1121 | PL_restartop = PL_op; |
1127 | PL_restartop = PL_op; |
1122 | perl_run (PL_curinterp); |
1128 | perl_run (PL_curinterp); |
1123 | |
1129 | |
… | |
… | |
1173 | /* mmap supposedly does allocate-on-write for us */ |
1179 | /* mmap supposedly does allocate-on-write for us */ |
1174 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1180 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1175 | |
1181 | |
1176 | if (cctx->sptr != (void *)-1) |
1182 | if (cctx->sptr != (void *)-1) |
1177 | { |
1183 | { |
1178 | # if CORO_STACKGUARD |
1184 | #if CORO_STACKGUARD |
1179 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1185 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1180 | # endif |
1186 | #endif |
1181 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1187 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1182 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1188 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1183 | cctx->flags |= CC_MAPPED; |
1189 | cctx->flags |= CC_MAPPED; |
1184 | } |
1190 | } |
1185 | else |
1191 | else |
1186 | #endif |
1192 | #endif |
1187 | { |
1193 | { |
1188 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1194 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1189 | New (0, cctx->sptr, cctx_stacksize, long); |
1195 | New (0, cctx->sptr, cctx_stacksize, long); |
1190 | |
1196 | |
1191 | if (!cctx->sptr) |
1197 | if (!cctx->sptr) |
1192 | { |
1198 | { |
1193 | perror ("FATAL: unable to allocate stack for coroutine"); |
1199 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1194 | _exit (EXIT_FAILURE); |
1200 | _exit (EXIT_FAILURE); |
1195 | } |
1201 | } |
1196 | |
1202 | |
1197 | stack_start = cctx->sptr; |
1203 | stack_start = cctx->sptr; |
1198 | stack_size = cctx->ssize; |
1204 | stack_size = cctx->ssize; |
1199 | } |
1205 | } |
1200 | |
1206 | |
1201 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1207 | #if CORO_USE_VALGRIND |
|
|
1208 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1209 | #endif |
|
|
1210 | |
1202 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1211 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1203 | |
1212 | |
1204 | return cctx; |
1213 | return cctx; |
1205 | } |
1214 | } |
1206 | |
1215 | |
… | |
… | |
1214 | coro_destroy (&cctx->cctx); |
1223 | coro_destroy (&cctx->cctx); |
1215 | |
1224 | |
1216 | /* coro_transfer creates new, empty cctx's */ |
1225 | /* coro_transfer creates new, empty cctx's */ |
1217 | if (cctx->sptr) |
1226 | if (cctx->sptr) |
1218 | { |
1227 | { |
1219 | #if CORO_USE_VALGRIND |
1228 | #if CORO_USE_VALGRIND |
1220 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1229 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1221 | #endif |
1230 | #endif |
1222 | |
1231 | |
1223 | #if HAVE_MMAP |
1232 | #if HAVE_MMAP |
1224 | if (cctx->flags & CC_MAPPED) |
1233 | if (cctx->flags & CC_MAPPED) |
1225 | munmap (cctx->sptr, cctx->ssize); |
1234 | munmap (cctx->sptr, cctx->ssize); |
1226 | else |
1235 | else |
… | |
… | |
1253 | } |
1262 | } |
1254 | |
1263 | |
1255 | static void |
1264 | static void |
1256 | cctx_put (coro_cctx *cctx) |
1265 | cctx_put (coro_cctx *cctx) |
1257 | { |
1266 | { |
1258 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
1267 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1259 | |
1268 | |
1260 | /* free another cctx if overlimit */ |
1269 | /* free another cctx if overlimit */ |
1261 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1270 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1262 | { |
1271 | { |
1263 | coro_cctx *first = cctx_first; |
1272 | coro_cctx *first = cctx_first; |
… | |
… | |
1275 | /** coroutine switching *****************************************************/ |
1284 | /** coroutine switching *****************************************************/ |
1276 | |
1285 | |
1277 | static void |
1286 | static void |
1278 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1287 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1279 | { |
1288 | { |
|
|
1289 | /* TODO: throwing up here is considered harmful */ |
|
|
1290 | |
1280 | if (expect_true (prev != next)) |
1291 | if (expect_true (prev != next)) |
1281 | { |
1292 | { |
1282 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1293 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1283 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1294 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1284 | |
1295 | |
1285 | if (expect_false (next->flags & CF_RUNNING)) |
1296 | if (expect_false (next->flags & CF_RUNNING)) |
1286 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1297 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1287 | |
1298 | |
1288 | if (expect_false (next->flags & CF_DESTROYED)) |
1299 | if (expect_false (next->flags & CF_DESTROYED)) |
1289 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1300 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1290 | |
1301 | |
1291 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1302 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1292 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1303 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1293 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1304 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1294 | #endif |
1305 | #endif |
1295 | } |
1306 | } |
1296 | } |
1307 | } |
1297 | |
1308 | |
1298 | /* always use the TRANSFER macro */ |
1309 | /* always use the TRANSFER macro */ |
1299 | static void NOINLINE |
1310 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1300 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1311 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1301 | { |
1312 | { |
1302 | dSTACKLEVEL; |
1313 | dSTACKLEVEL; |
1303 | |
1314 | |
1304 | /* sometimes transfer is only called to set idle_sp */ |
1315 | /* sometimes transfer is only called to set idle_sp */ |
1305 | if (expect_false (!next)) |
1316 | if (expect_false (!next)) |
1306 | { |
1317 | { |
1307 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1318 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1308 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1319 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1309 | } |
1320 | } |
1310 | else if (expect_true (prev != next)) |
1321 | else if (expect_true (prev != next)) |
1311 | { |
1322 | { |
1312 | coro_cctx *prev__cctx; |
1323 | coro_cctx *prev__cctx; |
… | |
… | |
1319 | prev->flags |= CF_RUNNING; |
1330 | prev->flags |= CF_RUNNING; |
1320 | } |
1331 | } |
1321 | |
1332 | |
1322 | prev->flags &= ~CF_RUNNING; |
1333 | prev->flags &= ~CF_RUNNING; |
1323 | next->flags |= CF_RUNNING; |
1334 | next->flags |= CF_RUNNING; |
1324 | |
|
|
1325 | LOCK; |
|
|
1326 | |
1335 | |
1327 | /* first get rid of the old state */ |
1336 | /* first get rid of the old state */ |
1328 | save_perl (aTHX_ prev); |
1337 | save_perl (aTHX_ prev); |
1329 | |
1338 | |
1330 | if (expect_false (next->flags & CF_NEW)) |
1339 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1339 | |
1348 | |
1340 | prev__cctx = prev->cctx; |
1349 | prev__cctx = prev->cctx; |
1341 | |
1350 | |
1342 | /* possibly untie and reuse the cctx */ |
1351 | /* possibly untie and reuse the cctx */ |
1343 | if (expect_true ( |
1352 | if (expect_true ( |
1344 | prev__cctx->idle_sp == STACKLEVEL |
1353 | prev__cctx->idle_sp == (void *)stacklevel |
1345 | && !(prev__cctx->flags & CC_TRACE) |
1354 | && !(prev__cctx->flags & CC_TRACE) |
1346 | && !force_cctx |
1355 | && !force_cctx |
1347 | )) |
1356 | )) |
1348 | { |
1357 | { |
1349 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1358 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1350 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1359 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1351 | |
1360 | |
1352 | prev->cctx = 0; |
1361 | prev->cctx = 0; |
1353 | |
1362 | |
1354 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1363 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1355 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1364 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
… | |
… | |
1362 | |
1371 | |
1363 | ++next->usecount; |
1372 | ++next->usecount; |
1364 | |
1373 | |
1365 | if (expect_true (!next->cctx)) |
1374 | if (expect_true (!next->cctx)) |
1366 | next->cctx = cctx_get (aTHX); |
1375 | next->cctx = cctx_get (aTHX); |
1367 | |
|
|
1368 | assert (("FATAL ERROR: internal error 1352 in Coro, please report", !transfer_next));//D |
|
|
1369 | transfer_next = next; |
|
|
1370 | |
1376 | |
1371 | if (expect_false (prev__cctx != next->cctx)) |
1377 | if (expect_false (prev__cctx != next->cctx)) |
1372 | { |
1378 | { |
1373 | prev__cctx->top_env = PL_top_env; |
1379 | prev__cctx->top_env = PL_top_env; |
1374 | PL_top_env = next->cctx->top_env; |
1380 | PL_top_env = next->cctx->top_env; |
1375 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1381 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1376 | } |
1382 | } |
1377 | |
1383 | |
1378 | transfer_tail (); |
1384 | transfer_tail (aTHX); |
1379 | } |
1385 | } |
1380 | } |
1386 | } |
1381 | |
1387 | |
1382 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1388 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1383 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1389 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
… | |
… | |
1387 | static int |
1393 | static int |
1388 | coro_state_destroy (pTHX_ struct coro *coro) |
1394 | coro_state_destroy (pTHX_ struct coro *coro) |
1389 | { |
1395 | { |
1390 | if (coro->flags & CF_DESTROYED) |
1396 | if (coro->flags & CF_DESTROYED) |
1391 | return 0; |
1397 | return 0; |
|
|
1398 | |
|
|
1399 | if (coro->on_destroy) |
|
|
1400 | coro->on_destroy (aTHX_ coro); |
1392 | |
1401 | |
1393 | coro->flags |= CF_DESTROYED; |
1402 | coro->flags |= CF_DESTROYED; |
1394 | |
1403 | |
1395 | if (coro->flags & CF_READY) |
1404 | if (coro->flags & CF_READY) |
1396 | { |
1405 | { |
1397 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1406 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1398 | /* alternative: look through all ready queues and remove the coro */ |
1407 | /* alternative: look through all ready queues and remove the coro */ |
1399 | LOCK; |
|
|
1400 | --coro_nready; |
1408 | --coro_nready; |
1401 | UNLOCK; |
|
|
1402 | } |
1409 | } |
1403 | else |
1410 | else |
1404 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1411 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1405 | |
1412 | |
1406 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1413 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1407 | { |
1414 | { |
1408 | struct coro temp; |
1415 | struct coro temp; |
1409 | |
1416 | |
1410 | if (coro->flags & CF_RUNNING) |
1417 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1411 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1412 | |
1418 | |
1413 | save_perl (aTHX_ &temp); |
1419 | save_perl (aTHX_ &temp); |
1414 | load_perl (aTHX_ coro); |
1420 | load_perl (aTHX_ coro); |
1415 | |
1421 | |
1416 | coro_destruct (aTHX_ coro); |
1422 | coro_destruct (aTHX_ coro); |
… | |
… | |
1467 | # define MGf_DUP 0 |
1473 | # define MGf_DUP 0 |
1468 | #endif |
1474 | #endif |
1469 | }; |
1475 | }; |
1470 | |
1476 | |
1471 | static void |
1477 | static void |
1472 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1478 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1473 | { |
1479 | { |
1474 | ta->prev = SvSTATE (prev_sv); |
1480 | ta->prev = SvSTATE (prev_sv); |
1475 | ta->next = SvSTATE (next_sv); |
1481 | ta->next = SvSTATE (next_sv); |
1476 | TRANSFER_CHECK (*ta); |
1482 | TRANSFER_CHECK (*ta); |
1477 | } |
1483 | } |
1478 | |
1484 | |
1479 | static void |
1485 | static void |
1480 | api_transfer (SV *prev_sv, SV *next_sv) |
1486 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1481 | { |
1487 | { |
1482 | dTHX; |
|
|
1483 | struct transfer_args ta; |
1488 | struct coro_transfer_args ta; |
1484 | |
1489 | |
1485 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1490 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1486 | TRANSFER (ta, 1); |
1491 | TRANSFER (ta, 1); |
1487 | } |
1492 | } |
1488 | |
1493 | |
1489 | /** Coro ********************************************************************/ |
1494 | /** Coro ********************************************************************/ |
1490 | |
1495 | |
1491 | static void |
1496 | INLINE void |
1492 | coro_enq (pTHX_ SV *coro_sv) |
1497 | coro_enq (pTHX_ struct coro *coro) |
1493 | { |
1498 | { |
1494 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1499 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1495 | } |
1500 | } |
1496 | |
1501 | |
1497 | static SV * |
1502 | INLINE SV * |
1498 | coro_deq (pTHX) |
1503 | coro_deq (pTHX) |
1499 | { |
1504 | { |
1500 | int prio; |
1505 | int prio; |
1501 | |
1506 | |
1502 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1507 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1505 | |
1510 | |
1506 | return 0; |
1511 | return 0; |
1507 | } |
1512 | } |
1508 | |
1513 | |
1509 | static int |
1514 | static int |
1510 | api_ready (SV *coro_sv) |
1515 | api_ready (pTHX_ SV *coro_sv) |
1511 | { |
1516 | { |
1512 | dTHX; |
|
|
1513 | struct coro *coro; |
1517 | struct coro *coro; |
1514 | SV *sv_hook; |
1518 | SV *sv_hook; |
1515 | void (*xs_hook)(void); |
1519 | void (*xs_hook)(void); |
1516 | |
1520 | |
1517 | if (SvROK (coro_sv)) |
1521 | if (SvROK (coro_sv)) |
… | |
… | |
1522 | if (coro->flags & CF_READY) |
1526 | if (coro->flags & CF_READY) |
1523 | return 0; |
1527 | return 0; |
1524 | |
1528 | |
1525 | coro->flags |= CF_READY; |
1529 | coro->flags |= CF_READY; |
1526 | |
1530 | |
1527 | LOCK; |
|
|
1528 | |
|
|
1529 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1531 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1530 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1532 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1531 | |
1533 | |
1532 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1534 | coro_enq (aTHX_ coro); |
1533 | ++coro_nready; |
1535 | ++coro_nready; |
1534 | |
1536 | |
1535 | UNLOCK; |
|
|
1536 | |
|
|
1537 | if (sv_hook) |
1537 | if (sv_hook) |
1538 | { |
1538 | { |
1539 | dSP; |
1539 | dSP; |
1540 | |
1540 | |
1541 | ENTER; |
1541 | ENTER; |
… | |
… | |
1555 | |
1555 | |
1556 | return 1; |
1556 | return 1; |
1557 | } |
1557 | } |
1558 | |
1558 | |
1559 | static int |
1559 | static int |
1560 | api_is_ready (SV *coro_sv) |
1560 | api_is_ready (pTHX_ SV *coro_sv) |
1561 | { |
1561 | { |
1562 | dTHX; |
|
|
1563 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1562 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1564 | } |
1563 | } |
1565 | |
1564 | |
1566 | static void |
1565 | INLINE void |
1567 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1566 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1568 | { |
1567 | { |
1569 | SV *prev_sv, *next_sv; |
1568 | SV *prev_sv, *next_sv; |
1570 | |
1569 | |
1571 | for (;;) |
1570 | for (;;) |
1572 | { |
1571 | { |
1573 | LOCK; |
|
|
1574 | next_sv = coro_deq (aTHX); |
1572 | next_sv = coro_deq (aTHX); |
1575 | |
1573 | |
1576 | /* nothing to schedule: call the idle handler */ |
1574 | /* nothing to schedule: call the idle handler */ |
1577 | if (expect_false (!next_sv)) |
1575 | if (expect_false (!next_sv)) |
1578 | { |
1576 | { |
1579 | dSP; |
1577 | dSP; |
1580 | UNLOCK; |
|
|
1581 | |
1578 | |
1582 | ENTER; |
1579 | ENTER; |
1583 | SAVETMPS; |
1580 | SAVETMPS; |
1584 | |
1581 | |
1585 | PUSHMARK (SP); |
1582 | PUSHMARK (SP); |
… | |
… | |
1590 | FREETMPS; |
1587 | FREETMPS; |
1591 | LEAVE; |
1588 | LEAVE; |
1592 | continue; |
1589 | continue; |
1593 | } |
1590 | } |
1594 | |
1591 | |
1595 | ta->next = SvSTATE (next_sv); |
1592 | ta->next = SvSTATE_hv (next_sv); |
1596 | |
1593 | |
1597 | /* cannot transfer to destroyed coros, skip and look for next */ |
1594 | /* cannot transfer to destroyed coros, skip and look for next */ |
1598 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1595 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1599 | { |
1596 | { |
1600 | UNLOCK; |
|
|
1601 | SvREFCNT_dec (next_sv); |
1597 | SvREFCNT_dec (next_sv); |
1602 | /* coro_nready has already been taken care of by destroy */ |
1598 | /* coro_nready has already been taken care of by destroy */ |
1603 | continue; |
1599 | continue; |
1604 | } |
1600 | } |
1605 | |
1601 | |
1606 | --coro_nready; |
1602 | --coro_nready; |
1607 | UNLOCK; |
|
|
1608 | break; |
1603 | break; |
1609 | } |
1604 | } |
1610 | |
1605 | |
1611 | /* free this only after the transfer */ |
1606 | /* free this only after the transfer */ |
1612 | prev_sv = SvRV (coro_current); |
1607 | prev_sv = SvRV (coro_current); |
1613 | ta->prev = SvSTATE (prev_sv); |
1608 | ta->prev = SvSTATE_hv (prev_sv); |
1614 | TRANSFER_CHECK (*ta); |
1609 | TRANSFER_CHECK (*ta); |
1615 | assert (ta->next->flags & CF_READY); |
1610 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1616 | ta->next->flags &= ~CF_READY; |
1611 | ta->next->flags &= ~CF_READY; |
1617 | SvRV_set (coro_current, next_sv); |
1612 | SvRV_set (coro_current, next_sv); |
1618 | |
1613 | |
1619 | LOCK; |
|
|
1620 | free_coro_mortal (aTHX); |
1614 | free_coro_mortal (aTHX); |
1621 | coro_mortal = prev_sv; |
1615 | coro_mortal = prev_sv; |
1622 | UNLOCK; |
|
|
1623 | } |
1616 | } |
1624 | |
1617 | |
1625 | static void |
1618 | INLINE void |
1626 | prepare_cede (pTHX_ struct transfer_args *ta) |
1619 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1627 | { |
1620 | { |
1628 | api_ready (coro_current); |
1621 | api_ready (aTHX_ coro_current); |
1629 | prepare_schedule (aTHX_ ta); |
1622 | prepare_schedule (aTHX_ ta); |
1630 | } |
1623 | } |
1631 | |
1624 | |
|
|
1625 | INLINE void |
|
|
1626 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1627 | { |
|
|
1628 | SV *prev = SvRV (coro_current); |
|
|
1629 | |
|
|
1630 | if (coro_nready) |
|
|
1631 | { |
|
|
1632 | prepare_schedule (aTHX_ ta); |
|
|
1633 | api_ready (aTHX_ prev); |
|
|
1634 | } |
|
|
1635 | else |
|
|
1636 | prepare_nop (aTHX_ ta); |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | static void |
|
|
1640 | api_schedule (pTHX) |
|
|
1641 | { |
|
|
1642 | struct coro_transfer_args ta; |
|
|
1643 | |
|
|
1644 | prepare_schedule (aTHX_ &ta); |
|
|
1645 | TRANSFER (ta, 1); |
|
|
1646 | } |
|
|
1647 | |
1632 | static int |
1648 | static int |
1633 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1649 | api_cede (pTHX) |
1634 | { |
1650 | { |
1635 | if (coro_nready) |
1651 | struct coro_transfer_args ta; |
1636 | { |
1652 | |
1637 | SV *prev = SvRV (coro_current); |
|
|
1638 | prepare_schedule (aTHX_ ta); |
1653 | prepare_cede (aTHX_ &ta); |
1639 | api_ready (prev); |
1654 | |
|
|
1655 | if (expect_true (ta.prev != ta.next)) |
|
|
1656 | { |
|
|
1657 | TRANSFER (ta, 1); |
1640 | return 1; |
1658 | return 1; |
1641 | } |
1659 | } |
1642 | else |
1660 | else |
1643 | return 0; |
1661 | return 0; |
1644 | } |
1662 | } |
1645 | |
1663 | |
1646 | static void |
|
|
1647 | api_schedule (void) |
|
|
1648 | { |
|
|
1649 | dTHX; |
|
|
1650 | struct transfer_args ta; |
|
|
1651 | |
|
|
1652 | prepare_schedule (aTHX_ &ta); |
|
|
1653 | TRANSFER (ta, 1); |
|
|
1654 | } |
|
|
1655 | |
|
|
1656 | static int |
1664 | static int |
1657 | api_cede (void) |
1665 | api_cede_notself (pTHX) |
1658 | { |
1666 | { |
1659 | dTHX; |
1667 | if (coro_nready) |
|
|
1668 | { |
1660 | struct transfer_args ta; |
1669 | struct coro_transfer_args ta; |
1661 | |
1670 | |
1662 | prepare_cede (aTHX_ &ta); |
1671 | prepare_cede_notself (aTHX_ &ta); |
1663 | |
|
|
1664 | if (expect_true (ta.prev != ta.next)) |
|
|
1665 | { |
|
|
1666 | TRANSFER (ta, 1); |
1672 | TRANSFER (ta, 1); |
1667 | return 1; |
1673 | return 1; |
1668 | } |
1674 | } |
1669 | else |
1675 | else |
1670 | return 0; |
1676 | return 0; |
1671 | } |
1677 | } |
1672 | |
1678 | |
1673 | static int |
1679 | static void |
1674 | api_cede_notself (void) |
|
|
1675 | { |
|
|
1676 | dTHX; |
|
|
1677 | struct transfer_args ta; |
|
|
1678 | |
|
|
1679 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1680 | { |
|
|
1681 | TRANSFER (ta, 1); |
|
|
1682 | return 1; |
|
|
1683 | } |
|
|
1684 | else |
|
|
1685 | return 0; |
|
|
1686 | } |
|
|
1687 | |
|
|
1688 | static void |
|
|
1689 | api_trace (SV *coro_sv, int flags) |
1680 | api_trace (pTHX_ SV *coro_sv, int flags) |
1690 | { |
1681 | { |
1691 | dTHX; |
|
|
1692 | struct coro *coro = SvSTATE (coro_sv); |
1682 | struct coro *coro = SvSTATE (coro_sv); |
1693 | |
1683 | |
1694 | if (flags & CC_TRACE) |
1684 | if (flags & CC_TRACE) |
1695 | { |
1685 | { |
1696 | if (!coro->cctx) |
1686 | if (!coro->cctx) |
1697 | coro->cctx = cctx_new_run (); |
1687 | coro->cctx = cctx_new_run (); |
1698 | else if (!(coro->cctx->flags & CC_TRACE)) |
1688 | else if (!(coro->cctx->flags & CC_TRACE)) |
1699 | croak ("cannot enable tracing on coroutine with custom stack"); |
1689 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1700 | |
1690 | |
1701 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1691 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1702 | } |
1692 | } |
1703 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1693 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1704 | { |
1694 | { |
… | |
… | |
1709 | else |
1699 | else |
1710 | coro->slot->runops = RUNOPS_DEFAULT; |
1700 | coro->slot->runops = RUNOPS_DEFAULT; |
1711 | } |
1701 | } |
1712 | } |
1702 | } |
1713 | |
1703 | |
1714 | #if 0 |
|
|
1715 | static int |
|
|
1716 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1717 | { |
|
|
1718 | AV *padlist; |
|
|
1719 | AV *av = (AV *)mg->mg_obj; |
|
|
1720 | |
|
|
1721 | abort (); |
|
|
1722 | |
|
|
1723 | return 0; |
|
|
1724 | } |
|
|
1725 | |
|
|
1726 | static MGVTBL coro_gensub_vtbl = { |
|
|
1727 | 0, 0, 0, 0, |
|
|
1728 | coro_gensub_free |
|
|
1729 | }; |
|
|
1730 | #endif |
|
|
1731 | |
|
|
1732 | /*****************************************************************************/ |
1704 | /*****************************************************************************/ |
1733 | /* PerlIO::cede */ |
1705 | /* PerlIO::cede */ |
1734 | |
1706 | |
1735 | typedef struct |
1707 | typedef struct |
1736 | { |
1708 | { |
… | |
… | |
1763 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1735 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1764 | double now = nvtime (); |
1736 | double now = nvtime (); |
1765 | |
1737 | |
1766 | if (now >= self->next) |
1738 | if (now >= self->next) |
1767 | { |
1739 | { |
1768 | api_cede (); |
1740 | api_cede (aTHX); |
1769 | self->next = now + self->every; |
1741 | self->next = now + self->every; |
1770 | } |
1742 | } |
1771 | |
1743 | |
1772 | return PerlIOBuf_flush (aTHX_ f); |
1744 | return PerlIOBuf_flush (aTHX_ f); |
1773 | } |
1745 | } |
… | |
… | |
1802 | PerlIOBuf_get_ptr, |
1774 | PerlIOBuf_get_ptr, |
1803 | PerlIOBuf_get_cnt, |
1775 | PerlIOBuf_get_cnt, |
1804 | PerlIOBuf_set_ptrcnt, |
1776 | PerlIOBuf_set_ptrcnt, |
1805 | }; |
1777 | }; |
1806 | |
1778 | |
|
|
1779 | /*****************************************************************************/ |
|
|
1780 | |
|
|
1781 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1782 | static const CV *slf_cv; |
|
|
1783 | static SV **slf_argv; |
|
|
1784 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1785 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1786 | |
|
|
1787 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1788 | /* recreate the stack frame as perl will on following calls */ |
|
|
1789 | /* since entersub cleared the stack */ |
|
|
1790 | static OP * |
|
|
1791 | pp_restore (pTHX) |
|
|
1792 | { |
|
|
1793 | int i; |
|
|
1794 | SV **SP = PL_stack_base + slf_ax; |
|
|
1795 | |
|
|
1796 | PUSHMARK (SP); |
|
|
1797 | |
|
|
1798 | EXTEND (SP, slf_argc + 1); |
|
|
1799 | |
|
|
1800 | for (i = 0; i < slf_argc; ++i) |
|
|
1801 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1802 | |
|
|
1803 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1804 | |
|
|
1805 | RETURNOP (slf_restore.op_first); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void |
|
|
1809 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1810 | { |
|
|
1811 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | static void |
|
|
1815 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1816 | { |
|
|
1817 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1818 | |
|
|
1819 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1820 | frame->check = slf_check_nop; |
|
|
1821 | frame->data = (void *)SvIV (arg [0]); |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | static void |
|
|
1825 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1826 | { |
|
|
1827 | SV **arg = (SV **)slf_frame.data; |
|
|
1828 | |
|
|
1829 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void |
|
|
1833 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1834 | { |
|
|
1835 | if (items != 2) |
|
|
1836 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1837 | |
|
|
1838 | frame->prepare = slf_prepare_transfer; |
|
|
1839 | frame->check = slf_check_nop; |
|
|
1840 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | static void |
|
|
1844 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1845 | { |
|
|
1846 | frame->prepare = prepare_schedule; |
|
|
1847 | frame->check = slf_check_nop; |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_cede; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede_notself; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1865 | #define CVf_SLF 0x4000 |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | * SLF stands for "schedule-like-function". |
|
|
1872 | */ |
|
|
1873 | static OP * |
|
|
1874 | pp_slf (pTHX) |
|
|
1875 | { |
|
|
1876 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1877 | |
|
|
1878 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1879 | /* the latter happens when a new coro has been started */ |
|
|
1880 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1881 | if (expect_true (!slf_frame.prepare)) |
|
|
1882 | { |
|
|
1883 | /* first iteration */ |
|
|
1884 | dSP; |
|
|
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
|
|
1888 | |
|
|
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1890 | /* for us, divert to the real entersub */ |
|
|
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1893 | |
|
|
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1895 | { |
|
|
1896 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1897 | AV *av = GvAV (PL_defgv); |
|
|
1898 | arg = AvARRAY (av); |
|
|
1899 | items = AvFILLp (av) + 1; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1903 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1904 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1905 | |
|
|
1906 | /* pop args */ |
|
|
1907 | SP = PL_stack_base + POPMARK; |
|
|
1908 | |
|
|
1909 | PUTBACK; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | /* now that we have a slf_frame, interpret it! */ |
|
|
1913 | /* we use a callback system not to make the code needlessly */ |
|
|
1914 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1915 | |
|
|
1916 | do |
|
|
1917 | { |
|
|
1918 | struct coro_transfer_args ta; |
|
|
1919 | |
|
|
1920 | slf_frame.prepare (aTHX_ &ta); |
|
|
1921 | TRANSFER (ta, 0); |
|
|
1922 | |
|
|
1923 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1924 | } |
|
|
1925 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1926 | |
|
|
1927 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1928 | |
|
|
1929 | /* return value handling - mostly like entersub */ |
|
|
1930 | { |
|
|
1931 | dSP; |
|
|
1932 | SV **bot = PL_stack_base + checkmark; |
|
|
1933 | int gimme = GIMME_V; |
|
|
1934 | |
|
|
1935 | /* make sure we put something on the stack in scalar context */ |
|
|
1936 | if (gimme == G_SCALAR) |
|
|
1937 | { |
|
|
1938 | if (sp == bot) |
|
|
1939 | XPUSHs (&PL_sv_undef); |
|
|
1940 | |
|
|
1941 | SP = bot + 1; |
|
|
1942 | } |
|
|
1943 | |
|
|
1944 | PUTBACK; |
|
|
1945 | } |
|
|
1946 | |
|
|
1947 | /* exception handling */ |
|
|
1948 | if (expect_false (coro_throw)) |
|
|
1949 | { |
|
|
1950 | SV *exception = sv_2mortal (coro_throw); |
|
|
1951 | |
|
|
1952 | coro_throw = 0; |
|
|
1953 | sv_setsv (ERRSV, exception); |
|
|
1954 | croak (0); |
|
|
1955 | } |
|
|
1956 | |
|
|
1957 | return NORMAL; |
|
|
1958 | } |
|
|
1959 | |
|
|
1960 | static void |
|
|
1961 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1962 | { |
|
|
1963 | int i; |
|
|
1964 | SV **arg = PL_stack_base + ax; |
|
|
1965 | int items = PL_stack_sp - arg + 1; |
|
|
1966 | |
|
|
1967 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1968 | |
|
|
1969 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1970 | && PL_op->op_ppaddr != pp_slf) |
|
|
1971 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1972 | |
|
|
1973 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1974 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1975 | slf_cv = cv; |
|
|
1976 | |
|
|
1977 | /* we patch the op, and then re-run the whole call */ |
|
|
1978 | /* we have to put the same argument on the stack for this to work */ |
|
|
1979 | /* and this will be done by pp_restore */ |
|
|
1980 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1981 | slf_restore.op_type = OP_CUSTOM; |
|
|
1982 | slf_restore.op_ppaddr = pp_restore; |
|
|
1983 | slf_restore.op_first = PL_op; |
|
|
1984 | |
|
|
1985 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1986 | |
|
|
1987 | if (items > slf_arga) |
|
|
1988 | { |
|
|
1989 | slf_arga = items; |
|
|
1990 | free (slf_argv); |
|
|
1991 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1992 | } |
|
|
1993 | |
|
|
1994 | slf_argc = items; |
|
|
1995 | |
|
|
1996 | for (i = 0; i < items; ++i) |
|
|
1997 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1998 | |
|
|
1999 | PL_op->op_ppaddr = pp_slf; |
|
|
2000 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2001 | |
|
|
2002 | PL_op = (OP *)&slf_restore; |
|
|
2003 | } |
|
|
2004 | |
|
|
2005 | /*****************************************************************************/ |
|
|
2006 | |
|
|
2007 | static void |
|
|
2008 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2009 | { |
|
|
2010 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2011 | IV count = SvIVX (count_sv); |
|
|
2012 | |
|
|
2013 | count += adjust; |
|
|
2014 | SvIVX (count_sv) = count; |
|
|
2015 | |
|
|
2016 | /* now wake up as many waiters as are expected to lock */ |
|
|
2017 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2018 | { |
|
|
2019 | SV *cb; |
|
|
2020 | |
|
|
2021 | /* swap first two elements so we can shift a waiter */ |
|
|
2022 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2023 | AvARRAY (av)[1] = count_sv; |
|
|
2024 | cb = av_shift (av); |
|
|
2025 | |
|
|
2026 | if (SvOBJECT (cb)) |
|
|
2027 | api_ready (aTHX_ cb); |
|
|
2028 | else |
|
|
2029 | croak ("callbacks not yet supported"); |
|
|
2030 | |
|
|
2031 | SvREFCNT_dec (cb); |
|
|
2032 | |
|
|
2033 | --count; |
|
|
2034 | } |
|
|
2035 | } |
|
|
2036 | |
|
|
2037 | static void |
|
|
2038 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2039 | { |
|
|
2040 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2041 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2042 | } |
|
|
2043 | |
|
|
2044 | static int |
|
|
2045 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2046 | { |
|
|
2047 | AV *av = (AV *)frame->data; |
|
|
2048 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2049 | |
|
|
2050 | if (SvIVX (count_sv) > 0) |
|
|
2051 | { |
|
|
2052 | SvSTATE_current->on_destroy = 0; |
|
|
2053 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2054 | return 0; |
|
|
2055 | } |
|
|
2056 | else |
|
|
2057 | { |
|
|
2058 | int i; |
|
|
2059 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2060 | /* waiters list and only add us if we aren't in there already */ |
|
|
2061 | /* this avoids some degenerate memory usage cases */ |
|
|
2062 | |
|
|
2063 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2064 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2065 | return 1; |
|
|
2066 | |
|
|
2067 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2068 | return 1; |
|
|
2069 | } |
|
|
2070 | } |
|
|
2071 | |
|
|
2072 | static void |
|
|
2073 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2074 | { |
|
|
2075 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2076 | |
|
|
2077 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2078 | { |
|
|
2079 | frame->data = (void *)av; |
|
|
2080 | frame->prepare = prepare_nop; |
|
|
2081 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2082 | } |
|
|
2083 | else |
|
|
2084 | { |
|
|
2085 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2086 | |
|
|
2087 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2088 | frame->prepare = prepare_schedule; |
|
|
2089 | |
|
|
2090 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2091 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2092 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2093 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | frame->check = slf_check_semaphore_down; |
|
|
2097 | |
|
|
2098 | } |
|
|
2099 | |
|
|
2100 | /*****************************************************************************/ |
|
|
2101 | |
|
|
2102 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2103 | |
|
|
2104 | /* create a closure from XS, returns a code reference */ |
|
|
2105 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2106 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2107 | static SV * |
|
|
2108 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2109 | { |
|
|
2110 | CV *cv = (CV *)NEWSV (0, 0); |
|
|
2111 | |
|
|
2112 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2113 | |
|
|
2114 | CvANON_on (cv); |
|
|
2115 | CvISXSUB_on (cv); |
|
|
2116 | CvXSUB (cv) = xsub; |
|
|
2117 | GENSUB_ARG = arg; |
|
|
2118 | |
|
|
2119 | return newRV_noinc ((SV *)cv); |
|
|
2120 | } |
|
|
2121 | |
|
|
2122 | /*****************************************************************************/ |
1807 | |
2123 | |
1808 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2124 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1809 | |
2125 | |
1810 | PROTOTYPES: DISABLE |
2126 | PROTOTYPES: DISABLE |
1811 | |
2127 | |
1812 | BOOT: |
2128 | BOOT: |
1813 | { |
2129 | { |
1814 | #ifdef USE_ITHREADS |
2130 | #ifdef USE_ITHREADS |
1815 | MUTEX_INIT (&coro_lock); |
|
|
1816 | # if CORO_PTHREAD |
2131 | # if CORO_PTHREAD |
1817 | coro_thx = PERL_GET_CONTEXT; |
2132 | coro_thx = PERL_GET_CONTEXT; |
1818 | # endif |
2133 | # endif |
1819 | #endif |
2134 | #endif |
1820 | BOOT_PAGESIZE; |
2135 | BOOT_PAGESIZE; |
… | |
… | |
1841 | main_top_env = PL_top_env; |
2156 | main_top_env = PL_top_env; |
1842 | |
2157 | |
1843 | while (main_top_env->je_prev) |
2158 | while (main_top_env->je_prev) |
1844 | main_top_env = main_top_env->je_prev; |
2159 | main_top_env = main_top_env->je_prev; |
1845 | |
2160 | |
|
|
2161 | { |
|
|
2162 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2163 | |
|
|
2164 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2165 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2166 | newSVpv ("coro_slf", 0), 0); |
|
|
2167 | |
|
|
2168 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2169 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2170 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2171 | } |
|
|
2172 | |
1846 | coroapi.ver = CORO_API_VERSION; |
2173 | coroapi.ver = CORO_API_VERSION; |
1847 | coroapi.rev = CORO_API_REVISION; |
2174 | coroapi.rev = CORO_API_REVISION; |
|
|
2175 | |
1848 | coroapi.transfer = api_transfer; |
2176 | coroapi.transfer = api_transfer; |
|
|
2177 | |
|
|
2178 | coroapi.sv_state = SvSTATE_; |
|
|
2179 | coroapi.execute_slf = api_execute_slf; |
|
|
2180 | coroapi.prepare_nop = prepare_nop; |
|
|
2181 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2182 | coroapi.prepare_cede = prepare_cede; |
|
|
2183 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1849 | |
2184 | |
1850 | { |
2185 | { |
1851 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2186 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1852 | |
2187 | |
1853 | if (!svp) croak ("Time::HiRes is required"); |
2188 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
1886 | av_push (coro->args, newSVsv (ST (i))); |
2221 | av_push (coro->args, newSVsv (ST (i))); |
1887 | } |
2222 | } |
1888 | OUTPUT: |
2223 | OUTPUT: |
1889 | RETVAL |
2224 | RETVAL |
1890 | |
2225 | |
1891 | # these not obviously related functions are all rolled into the same xs |
|
|
1892 | # function to increase chances that they all will call transfer with the same |
|
|
1893 | # stack offset |
|
|
1894 | void |
2226 | void |
1895 | _set_stacklevel (...) |
2227 | _set_stacklevel (...) |
1896 | ALIAS: |
2228 | CODE: |
1897 | Coro::State::transfer = 1 |
2229 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
1898 | Coro::schedule = 2 |
|
|
1899 | Coro::cede = 3 |
|
|
1900 | Coro::cede_notself = 4 |
|
|
1901 | CODE: |
|
|
1902 | { |
|
|
1903 | struct transfer_args ta; |
|
|
1904 | |
2230 | |
1905 | PUTBACK; |
2231 | void |
1906 | switch (ix) |
2232 | transfer (...) |
1907 | { |
2233 | PROTOTYPE: $$ |
1908 | case 0: |
2234 | CODE: |
1909 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (ST (0))); |
2235 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1910 | break; |
|
|
1911 | |
|
|
1912 | case 1: |
|
|
1913 | if (items != 2) |
|
|
1914 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1915 | |
|
|
1916 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1917 | break; |
|
|
1918 | |
|
|
1919 | case 2: |
|
|
1920 | prepare_schedule (aTHX_ &ta); |
|
|
1921 | break; |
|
|
1922 | |
|
|
1923 | case 3: |
|
|
1924 | prepare_cede (aTHX_ &ta); |
|
|
1925 | break; |
|
|
1926 | |
|
|
1927 | case 4: |
|
|
1928 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1929 | XSRETURN_EMPTY; |
|
|
1930 | |
|
|
1931 | break; |
|
|
1932 | } |
|
|
1933 | SPAGAIN; |
|
|
1934 | |
|
|
1935 | BARRIER; |
|
|
1936 | PUTBACK; |
|
|
1937 | TRANSFER (ta, 0); |
|
|
1938 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1939 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1940 | } |
|
|
1941 | |
2236 | |
1942 | bool |
2237 | bool |
1943 | _destroy (SV *coro_sv) |
2238 | _destroy (SV *coro_sv) |
1944 | CODE: |
2239 | CODE: |
1945 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2240 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1952 | CODE: |
2247 | CODE: |
1953 | _exit (code); |
2248 | _exit (code); |
1954 | |
2249 | |
1955 | int |
2250 | int |
1956 | cctx_stacksize (int new_stacksize = 0) |
2251 | cctx_stacksize (int new_stacksize = 0) |
|
|
2252 | PROTOTYPE: ;$ |
1957 | CODE: |
2253 | CODE: |
1958 | RETVAL = cctx_stacksize; |
2254 | RETVAL = cctx_stacksize; |
1959 | if (new_stacksize) |
2255 | if (new_stacksize) |
1960 | { |
2256 | { |
1961 | cctx_stacksize = new_stacksize; |
2257 | cctx_stacksize = new_stacksize; |
… | |
… | |
1964 | OUTPUT: |
2260 | OUTPUT: |
1965 | RETVAL |
2261 | RETVAL |
1966 | |
2262 | |
1967 | int |
2263 | int |
1968 | cctx_max_idle (int max_idle = 0) |
2264 | cctx_max_idle (int max_idle = 0) |
|
|
2265 | PROTOTYPE: ;$ |
1969 | CODE: |
2266 | CODE: |
1970 | RETVAL = cctx_max_idle; |
2267 | RETVAL = cctx_max_idle; |
1971 | if (max_idle > 1) |
2268 | if (max_idle > 1) |
1972 | cctx_max_idle = max_idle; |
2269 | cctx_max_idle = max_idle; |
1973 | OUTPUT: |
2270 | OUTPUT: |
1974 | RETVAL |
2271 | RETVAL |
1975 | |
2272 | |
1976 | int |
2273 | int |
1977 | cctx_count () |
2274 | cctx_count () |
|
|
2275 | PROTOTYPE: |
1978 | CODE: |
2276 | CODE: |
1979 | RETVAL = cctx_count; |
2277 | RETVAL = cctx_count; |
1980 | OUTPUT: |
2278 | OUTPUT: |
1981 | RETVAL |
2279 | RETVAL |
1982 | |
2280 | |
1983 | int |
2281 | int |
1984 | cctx_idle () |
2282 | cctx_idle () |
|
|
2283 | PROTOTYPE: |
1985 | CODE: |
2284 | CODE: |
1986 | RETVAL = cctx_idle; |
2285 | RETVAL = cctx_idle; |
1987 | OUTPUT: |
2286 | OUTPUT: |
1988 | RETVAL |
2287 | RETVAL |
1989 | |
2288 | |
1990 | void |
2289 | void |
1991 | list () |
2290 | list () |
|
|
2291 | PROTOTYPE: |
1992 | PPCODE: |
2292 | PPCODE: |
1993 | { |
2293 | { |
1994 | struct coro *coro; |
2294 | struct coro *coro; |
1995 | for (coro = coro_first; coro; coro = coro->next) |
2295 | for (coro = coro_first; coro; coro = coro->next) |
1996 | if (coro->hv) |
2296 | if (coro->hv) |
… | |
… | |
2058 | |
2358 | |
2059 | void |
2359 | void |
2060 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2360 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
2061 | PROTOTYPE: $;$ |
2361 | PROTOTYPE: $;$ |
2062 | CODE: |
2362 | CODE: |
|
|
2363 | { |
|
|
2364 | struct coro *current = SvSTATE_current; |
|
|
2365 | SV **throwp = self == current ? &coro_throw : &self->throw; |
2063 | SvREFCNT_dec (self->throw); |
2366 | SvREFCNT_dec (*throwp); |
2064 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2367 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2368 | } |
2065 | |
2369 | |
2066 | void |
2370 | void |
2067 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2371 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2372 | PROTOTYPE: $;$ |
|
|
2373 | C_ARGS: aTHX_ coro, flags |
2068 | |
2374 | |
2069 | SV * |
2375 | SV * |
2070 | has_cctx (Coro::State coro) |
2376 | has_cctx (Coro::State coro) |
2071 | PROTOTYPE: $ |
2377 | PROTOTYPE: $ |
2072 | CODE: |
2378 | CODE: |
… | |
… | |
2096 | OUTPUT: |
2402 | OUTPUT: |
2097 | RETVAL |
2403 | RETVAL |
2098 | |
2404 | |
2099 | void |
2405 | void |
2100 | force_cctx () |
2406 | force_cctx () |
|
|
2407 | PROTOTYPE: |
2101 | CODE: |
2408 | CODE: |
2102 | struct coro *coro = SvSTATE (coro_current); |
|
|
2103 | coro->cctx->idle_sp = 0; |
2409 | SvSTATE_current->cctx->idle_sp = 0; |
2104 | |
2410 | |
2105 | void |
2411 | void |
2106 | swap_defsv (Coro::State self) |
2412 | swap_defsv (Coro::State self) |
2107 | PROTOTYPE: $ |
2413 | PROTOTYPE: $ |
2108 | ALIAS: |
2414 | ALIAS: |
2109 | swap_defav = 1 |
2415 | swap_defav = 1 |
2110 | CODE: |
2416 | CODE: |
2111 | if (!self->slot) |
2417 | if (!self->slot) |
2112 | croak ("cannot swap state with coroutine that has no saved state"); |
2418 | croak ("cannot swap state with coroutine that has no saved state,"); |
2113 | else |
2419 | else |
2114 | { |
2420 | { |
2115 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2421 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2116 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2422 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2117 | |
2423 | |
… | |
… | |
2142 | |
2448 | |
2143 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2449 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2144 | coro_ready[i] = newAV (); |
2450 | coro_ready[i] = newAV (); |
2145 | |
2451 | |
2146 | { |
2452 | { |
2147 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
2453 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2148 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2149 | |
2454 | |
2150 | coroapi.schedule = api_schedule; |
2455 | coroapi.schedule = api_schedule; |
2151 | coroapi.cede = api_cede; |
2456 | coroapi.cede = api_cede; |
2152 | coroapi.cede_notself = api_cede_notself; |
2457 | coroapi.cede_notself = api_cede_notself; |
2153 | coroapi.ready = api_ready; |
2458 | coroapi.ready = api_ready; |
2154 | coroapi.is_ready = api_is_ready; |
2459 | coroapi.is_ready = api_is_ready; |
2155 | coroapi.nready = &coro_nready; |
2460 | coroapi.nready = coro_nready; |
2156 | coroapi.current = coro_current; |
2461 | coroapi.current = coro_current; |
2157 | |
2462 | |
2158 | GCoroAPI = &coroapi; |
2463 | GCoroAPI = &coroapi; |
2159 | sv_setiv (sv, (IV)&coroapi); |
2464 | sv_setiv (sv, (IV)&coroapi); |
2160 | SvREADONLY_on (sv); |
2465 | SvREADONLY_on (sv); |
2161 | } |
2466 | } |
2162 | } |
2467 | } |
|
|
2468 | |
|
|
2469 | void |
|
|
2470 | schedule (...) |
|
|
2471 | CODE: |
|
|
2472 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2473 | |
|
|
2474 | void |
|
|
2475 | cede (...) |
|
|
2476 | CODE: |
|
|
2477 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2478 | |
|
|
2479 | void |
|
|
2480 | cede_notself (...) |
|
|
2481 | CODE: |
|
|
2482 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2163 | |
2483 | |
2164 | void |
2484 | void |
2165 | _set_current (SV *current) |
2485 | _set_current (SV *current) |
2166 | PROTOTYPE: $ |
2486 | PROTOTYPE: $ |
2167 | CODE: |
2487 | CODE: |
… | |
… | |
2170 | |
2490 | |
2171 | void |
2491 | void |
2172 | _set_readyhook (SV *hook) |
2492 | _set_readyhook (SV *hook) |
2173 | PROTOTYPE: $ |
2493 | PROTOTYPE: $ |
2174 | CODE: |
2494 | CODE: |
2175 | LOCK; |
|
|
2176 | SvREFCNT_dec (coro_readyhook); |
2495 | SvREFCNT_dec (coro_readyhook); |
2177 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2496 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2178 | UNLOCK; |
|
|
2179 | |
2497 | |
2180 | int |
2498 | int |
2181 | prio (Coro::State coro, int newprio = 0) |
2499 | prio (Coro::State coro, int newprio = 0) |
|
|
2500 | PROTOTYPE: $;$ |
2182 | ALIAS: |
2501 | ALIAS: |
2183 | nice = 1 |
2502 | nice = 1 |
2184 | CODE: |
2503 | CODE: |
2185 | { |
2504 | { |
2186 | RETVAL = coro->prio; |
2505 | RETVAL = coro->prio; |
… | |
… | |
2201 | |
2520 | |
2202 | SV * |
2521 | SV * |
2203 | ready (SV *self) |
2522 | ready (SV *self) |
2204 | PROTOTYPE: $ |
2523 | PROTOTYPE: $ |
2205 | CODE: |
2524 | CODE: |
2206 | RETVAL = boolSV (api_ready (self)); |
2525 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2207 | OUTPUT: |
2526 | OUTPUT: |
2208 | RETVAL |
2527 | RETVAL |
2209 | |
2528 | |
2210 | int |
2529 | int |
2211 | nready (...) |
2530 | nready (...) |
… | |
… | |
2218 | # for async_pool speedup |
2537 | # for async_pool speedup |
2219 | void |
2538 | void |
2220 | _pool_1 (SV *cb) |
2539 | _pool_1 (SV *cb) |
2221 | CODE: |
2540 | CODE: |
2222 | { |
2541 | { |
2223 | struct coro *coro = SvSTATE (coro_current); |
|
|
2224 | HV *hv = (HV *)SvRV (coro_current); |
2542 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2543 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2225 | AV *defav = GvAV (PL_defgv); |
2544 | AV *defav = GvAV (PL_defgv); |
2226 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2545 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2227 | AV *invoke_av; |
2546 | AV *invoke_av; |
2228 | int i, len; |
2547 | int i, len; |
2229 | |
2548 | |
… | |
… | |
2250 | { |
2569 | { |
2251 | av_fill (defav, len - 1); |
2570 | av_fill (defav, len - 1); |
2252 | for (i = 0; i < len; ++i) |
2571 | for (i = 0; i < len; ++i) |
2253 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2572 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2254 | } |
2573 | } |
2255 | |
|
|
2256 | SvREFCNT_dec (invoke); |
|
|
2257 | } |
2574 | } |
2258 | |
2575 | |
2259 | void |
2576 | void |
2260 | _pool_2 (SV *cb) |
2577 | _pool_2 (SV *cb) |
2261 | CODE: |
2578 | CODE: |
2262 | { |
2579 | { |
2263 | struct coro *coro = SvSTATE (coro_current); |
2580 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2581 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2264 | |
2582 | |
2265 | sv_setsv (cb, &PL_sv_undef); |
2583 | sv_setsv (cb, &PL_sv_undef); |
2266 | |
2584 | |
2267 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2585 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2268 | coro->saved_deffh = 0; |
2586 | coro->saved_deffh = 0; |
… | |
… | |
2275 | SvREFCNT_dec (old); |
2593 | SvREFCNT_dec (old); |
2276 | croak ("\3async_pool terminate\2\n"); |
2594 | croak ("\3async_pool terminate\2\n"); |
2277 | } |
2595 | } |
2278 | |
2596 | |
2279 | av_clear (GvAV (PL_defgv)); |
2597 | av_clear (GvAV (PL_defgv)); |
2280 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2598 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2281 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2599 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2282 | |
2600 | |
2283 | coro->prio = 0; |
2601 | coro->prio = 0; |
2284 | |
2602 | |
2285 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2603 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2286 | api_trace (coro_current, 0); |
2604 | api_trace (aTHX_ coro_current, 0); |
2287 | |
2605 | |
2288 | av_push (av_async_pool, newSVsv (coro_current)); |
2606 | av_push (av_async_pool, newSVsv (coro_current)); |
2289 | } |
2607 | } |
2290 | |
|
|
2291 | #if 0 |
|
|
2292 | |
|
|
2293 | void |
|
|
2294 | _generator_call (...) |
|
|
2295 | PROTOTYPE: @ |
|
|
2296 | PPCODE: |
|
|
2297 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2298 | xxxx |
|
|
2299 | abort (); |
|
|
2300 | |
|
|
2301 | SV * |
|
|
2302 | gensub (SV *sub, ...) |
|
|
2303 | PROTOTYPE: &;@ |
|
|
2304 | CODE: |
|
|
2305 | { |
|
|
2306 | struct coro *coro; |
|
|
2307 | MAGIC *mg; |
|
|
2308 | CV *xcv; |
|
|
2309 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2310 | int i; |
|
|
2311 | |
|
|
2312 | CvGV (ncv) = CvGV (cv); |
|
|
2313 | CvFILE (ncv) = CvFILE (cv); |
|
|
2314 | |
|
|
2315 | Newz (0, coro, 1, struct coro); |
|
|
2316 | coro->args = newAV (); |
|
|
2317 | coro->flags = CF_NEW; |
|
|
2318 | |
|
|
2319 | av_extend (coro->args, items - 1); |
|
|
2320 | for (i = 1; i < items; i++) |
|
|
2321 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2322 | |
|
|
2323 | CvISXSUB_on (ncv); |
|
|
2324 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2325 | |
|
|
2326 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2327 | |
|
|
2328 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2329 | CvANON_on (ncv); |
|
|
2330 | |
|
|
2331 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2332 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2333 | } |
|
|
2334 | OUTPUT: |
|
|
2335 | RETVAL |
|
|
2336 | |
|
|
2337 | #endif |
|
|
2338 | |
2608 | |
2339 | |
2609 | |
2340 | MODULE = Coro::State PACKAGE = Coro::AIO |
2610 | MODULE = Coro::State PACKAGE = Coro::AIO |
2341 | |
2611 | |
2342 | void |
2612 | void |
2343 | _get_state (SV *self) |
2613 | _get_state (SV *self) |
|
|
2614 | PROTOTYPE: $ |
2344 | PPCODE: |
2615 | PPCODE: |
2345 | { |
2616 | { |
2346 | AV *defav = GvAV (PL_defgv); |
2617 | AV *defav = GvAV (PL_defgv); |
2347 | AV *av = newAV (); |
2618 | AV *av = newAV (); |
2348 | int i; |
2619 | int i; |
… | |
… | |
2363 | |
2634 | |
2364 | av_push (av, data_sv); |
2635 | av_push (av, data_sv); |
2365 | |
2636 | |
2366 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
2637 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
2367 | |
2638 | |
2368 | api_ready (self); |
2639 | api_ready (aTHX_ self); |
2369 | } |
2640 | } |
2370 | |
2641 | |
2371 | void |
2642 | void |
2372 | _set_state (SV *state) |
2643 | _set_state (SV *state) |
2373 | PROTOTYPE: $ |
2644 | PROTOTYPE: $ |
… | |
… | |
2391 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2662 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2392 | |
2663 | |
2393 | BOOT: |
2664 | BOOT: |
2394 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2665 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2395 | |
2666 | |
2396 | SV * |
2667 | void |
2397 | _schedule (...) |
2668 | _schedule (...) |
2398 | PROTOTYPE: @ |
|
|
2399 | CODE: |
2669 | CODE: |
2400 | { |
2670 | { |
2401 | static int incede; |
2671 | static int incede; |
2402 | |
2672 | |
2403 | api_cede_notself (); |
2673 | api_cede_notself (aTHX); |
2404 | |
2674 | |
2405 | ++incede; |
2675 | ++incede; |
2406 | while (coro_nready >= incede && api_cede ()) |
2676 | while (coro_nready >= incede && api_cede (aTHX)) |
2407 | ; |
2677 | ; |
2408 | |
2678 | |
2409 | sv_setsv (sv_activity, &PL_sv_undef); |
2679 | sv_setsv (sv_activity, &PL_sv_undef); |
2410 | if (coro_nready >= incede) |
2680 | if (coro_nready >= incede) |
2411 | { |
2681 | { |
… | |
… | |
2421 | |
2691 | |
2422 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2692 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2423 | |
2693 | |
2424 | BOOT: |
2694 | BOOT: |
2425 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2695 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2696 | |
|
|
2697 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
2698 | |
|
|
2699 | SV * |
|
|
2700 | new (SV *klass, SV *count_ = 0) |
|
|
2701 | CODE: |
|
|
2702 | { |
|
|
2703 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2704 | AV *av = newAV (); |
|
|
2705 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
|
|
2706 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
|
|
2707 | } |
|
|
2708 | OUTPUT: |
|
|
2709 | RETVAL |
|
|
2710 | |
|
|
2711 | SV * |
|
|
2712 | count (SV *self) |
|
|
2713 | CODE: |
|
|
2714 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2715 | OUTPUT: |
|
|
2716 | RETVAL |
|
|
2717 | |
|
|
2718 | void |
|
|
2719 | up (SV *self, int adjust = 1) |
|
|
2720 | ALIAS: |
|
|
2721 | adjust = 1 |
|
|
2722 | CODE: |
|
|
2723 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
2724 | |
|
|
2725 | void |
|
|
2726 | down (SV *self) |
|
|
2727 | CODE: |
|
|
2728 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2729 | |
|
|
2730 | void |
|
|
2731 | try (SV *self) |
|
|
2732 | PPCODE: |
|
|
2733 | { |
|
|
2734 | AV *av = (AV *)SvRV (self); |
|
|
2735 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2736 | IV count = SvIVX (count_sv); |
|
|
2737 | |
|
|
2738 | if (count > 0) |
|
|
2739 | { |
|
|
2740 | --count; |
|
|
2741 | SvIVX (count_sv) = count; |
|
|
2742 | XSRETURN_YES; |
|
|
2743 | } |
|
|
2744 | else |
|
|
2745 | XSRETURN_NO; |
|
|
2746 | } |
|
|
2747 | |
|
|
2748 | void |
|
|
2749 | waiters (SV *self) |
|
|
2750 | CODE: |
|
|
2751 | { |
|
|
2752 | AV *av = (AV *)SvRV (self); |
|
|
2753 | |
|
|
2754 | if (GIMME_V == G_SCALAR) |
|
|
2755 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2756 | else |
|
|
2757 | { |
|
|
2758 | int i; |
|
|
2759 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
|
|
2760 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2761 | PUSHs (newSVsv (AvARRAY (av)[i])); |
|
|
2762 | } |
|
|
2763 | } |
|
|
2764 | |