… | |
… | |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
117 | #endif |
117 | #endif |
118 | |
118 | |
119 | /* 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 |
120 | * portable way as possible. */ |
120 | * portable way as possible. */ |
121 | #define dSTACKLEVEL volatile char stacklevel |
121 | #if __GNUC__ >= 4 |
122 | #define STACKLEVEL ((void *)&stacklevel) |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
|
|
123 | #else |
|
|
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
|
|
125 | #endif |
123 | |
126 | |
124 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
125 | |
128 | |
126 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
127 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
… | |
… | |
139 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
140 | |
143 | |
141 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
142 | |
145 | |
143 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
144 | |
|
|
145 | static perl_mutex coro_lock; |
|
|
146 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
|
|
147 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
|
|
148 | # if CORO_PTHREAD |
147 | # if CORO_PTHREAD |
149 | static void *coro_thx; |
148 | static void *coro_thx; |
150 | # endif |
149 | # endif |
151 | |
|
|
152 | #else |
|
|
153 | |
|
|
154 | # define LOCK (void)0 |
|
|
155 | # define UNLOCK (void)0 |
|
|
156 | |
|
|
157 | #endif |
150 | #endif |
158 | |
|
|
159 | # undef LOCK |
|
|
160 | # define LOCK (void)0 |
|
|
161 | # undef UNLOCK |
|
|
162 | # define UNLOCK (void)0 |
|
|
163 | |
151 | |
164 | /* helper storage struct for Coro::AIO */ |
152 | /* helper storage struct for Coro::AIO */ |
165 | struct io_state |
153 | struct io_state |
166 | { |
154 | { |
167 | AV *res; |
155 | AV *res; |
… | |
… | |
178 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
179 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
180 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
181 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
182 | 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 */ |
183 | static volatile struct coro *transfer_next; |
|
|
184 | |
|
|
185 | struct transfer_args |
|
|
186 | { |
|
|
187 | struct coro *prev, *next; |
|
|
188 | }; |
|
|
189 | |
171 | |
190 | static GV *irsgv; /* $/ */ |
172 | static GV *irsgv; /* $/ */ |
191 | static GV *stdoutgv; /* *STDOUT */ |
173 | static GV *stdoutgv; /* *STDOUT */ |
192 | static SV *rv_diehook; |
174 | static SV *rv_diehook; |
193 | static SV *rv_warnhook; |
175 | static SV *rv_warnhook; |
… | |
… | |
212 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
213 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
214 | }; |
196 | }; |
215 | |
197 | |
216 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
217 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
|
|
200 | { |
218 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
219 | |
202 | |
220 | /* the stack */ |
203 | /* the stack */ |
221 | void *sptr; |
204 | void *sptr; |
222 | size_t ssize; |
205 | size_t ssize; |
… | |
… | |
240 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
242 | }; |
225 | }; |
243 | |
226 | |
244 | /* 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 */ |
245 | typedef struct { |
228 | typedef struct |
|
|
229 | { |
246 | SV *defsv; |
230 | SV *defsv; |
247 | AV *defav; |
231 | AV *defav; |
248 | SV *errsv; |
232 | SV *errsv; |
249 | SV *irsgv; |
233 | SV *irsgv; |
250 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
… | |
… | |
254 | |
238 | |
255 | #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)) |
256 | |
240 | |
257 | /* this is a structure representing a perl-level coroutine */ |
241 | /* this is a structure representing a perl-level coroutine */ |
258 | struct coro { |
242 | struct coro { |
259 | /* the c coroutine allocated to this perl coroutine, if any */ |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
260 | coro_cctx *cctx; |
244 | coro_cctx *cctx; |
261 | |
245 | |
262 | /* process data */ |
246 | /* process data */ |
|
|
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
263 | AV *mainstack; |
248 | AV *mainstack; |
264 | perl_slots *slot; /* basically the saved sp */ |
249 | perl_slots *slot; /* basically the saved sp */ |
265 | |
250 | |
266 | AV *args; /* data associated with this coroutine (initial args) */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
267 | int refcnt; /* coroutines are refcounted, yes */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
268 | int flags; /* CF_ flags */ |
253 | int flags; /* CF_ flags */ |
269 | 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); |
270 | |
256 | |
271 | /* statistics */ |
257 | /* statistics */ |
272 | int usecount; /* number of transfers to this coro */ |
258 | int usecount; /* number of transfers to this coro */ |
273 | |
259 | |
274 | /* coro process data */ |
260 | /* coro process data */ |
… | |
… | |
282 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
283 | }; |
269 | }; |
284 | |
270 | |
285 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
286 | typedef struct coro *Coro__State_or_hashref; |
272 | typedef struct coro *Coro__State_or_hashref; |
|
|
273 | |
|
|
274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
287 | |
275 | |
288 | /** Coro ********************************************************************/ |
276 | /** Coro ********************************************************************/ |
289 | |
277 | |
290 | #define PRIO_MAX 3 |
278 | #define PRIO_MAX 3 |
291 | #define PRIO_HIGH 1 |
279 | #define PRIO_HIGH 1 |
… | |
… | |
296 | |
284 | |
297 | /* for Coro.pm */ |
285 | /* for Coro.pm */ |
298 | static SV *coro_current; |
286 | static SV *coro_current; |
299 | static SV *coro_readyhook; |
287 | static SV *coro_readyhook; |
300 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
288 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
301 | static int coro_nready; |
|
|
302 | static struct coro *coro_first; |
289 | static struct coro *coro_first; |
|
|
290 | #define coro_nready coroapi.nready |
303 | |
291 | |
304 | /** lowlevel stuff **********************************************************/ |
292 | /** lowlevel stuff **********************************************************/ |
305 | |
293 | |
306 | static SV * |
294 | static SV * |
307 | coro_get_sv (pTHX_ const char *name, int create) |
295 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
400 | static MGVTBL coro_cv_vtbl = { |
388 | static MGVTBL coro_cv_vtbl = { |
401 | 0, 0, 0, 0, |
389 | 0, 0, 0, 0, |
402 | coro_cv_free |
390 | coro_cv_free |
403 | }; |
391 | }; |
404 | |
392 | |
405 | #define CORO_MAGIC(sv, type) \ |
393 | #define CORO_MAGIC(sv, type) \ |
406 | SvMAGIC (sv) \ |
394 | expect_true (SvMAGIC (sv)) \ |
407 | ? SvMAGIC (sv)->mg_type == type \ |
395 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
408 | ? SvMAGIC (sv) \ |
396 | ? SvMAGIC (sv) \ |
409 | : mg_find (sv, type) \ |
397 | : mg_find (sv, type) \ |
410 | : 0 |
398 | : 0 |
411 | |
399 | |
412 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
400 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
413 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
401 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
414 | |
402 | |
… | |
… | |
435 | mg = CORO_MAGIC_state (coro); |
423 | mg = CORO_MAGIC_state (coro); |
436 | return (struct coro *)mg->mg_ptr; |
424 | return (struct coro *)mg->mg_ptr; |
437 | } |
425 | } |
438 | |
426 | |
439 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
427 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
428 | |
|
|
429 | /* fastert than SvSTATE, but expects a coroutine hv */ |
|
|
430 | INLINE struct coro * |
|
|
431 | SvSTATE_hv (SV *sv) |
|
|
432 | { |
|
|
433 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
434 | ? SvMAGIC (sv) |
|
|
435 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
436 | |
|
|
437 | return (struct coro *)mg->mg_ptr; |
|
|
438 | } |
|
|
439 | |
|
|
440 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
440 | |
441 | |
441 | /* the next two functions merely cache the padlists */ |
442 | /* the next two functions merely cache the padlists */ |
442 | static void |
443 | static void |
443 | get_padlist (pTHX_ CV *cv) |
444 | get_padlist (pTHX_ CV *cv) |
444 | { |
445 | { |
… | |
… | |
511 | CvPADLIST (cv) = (AV *)POPs; |
512 | CvPADLIST (cv) = (AV *)POPs; |
512 | } |
513 | } |
513 | |
514 | |
514 | PUTBACK; |
515 | PUTBACK; |
515 | } |
516 | } |
|
|
517 | |
|
|
518 | slf_frame = c->slf_frame; |
516 | } |
519 | } |
517 | |
520 | |
518 | static void |
521 | static void |
519 | save_perl (pTHX_ Coro__State c) |
522 | save_perl (pTHX_ Coro__State c) |
520 | { |
523 | { |
|
|
524 | c->slf_frame = slf_frame; |
|
|
525 | |
521 | { |
526 | { |
522 | dSP; |
527 | dSP; |
523 | I32 cxix = cxstack_ix; |
528 | I32 cxix = cxstack_ix; |
524 | PERL_CONTEXT *ccstk = cxstack; |
529 | PERL_CONTEXT *ccstk = cxstack; |
525 | PERL_SI *top_si = PL_curstackinfo; |
530 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
592 | #undef VAR |
597 | #undef VAR |
593 | } |
598 | } |
594 | } |
599 | } |
595 | |
600 | |
596 | /* |
601 | /* |
597 | * allocate various perl stacks. This is an exact copy |
602 | * allocate various perl stacks. This is almost an exact copy |
598 | * of perl.c:init_stacks, except that it uses less memory |
603 | * of perl.c:init_stacks, except that it uses less memory |
599 | * on the (sometimes correct) assumption that coroutines do |
604 | * on the (sometimes correct) assumption that coroutines do |
600 | * not usually need a lot of stackspace. |
605 | * not usually need a lot of stackspace. |
601 | */ |
606 | */ |
602 | #if CORO_PREFER_PERL_FUNCTIONS |
607 | #if CORO_PREFER_PERL_FUNCTIONS |
… | |
… | |
709 | #endif |
714 | #endif |
710 | } |
715 | } |
711 | } |
716 | } |
712 | |
717 | |
713 | return rss; |
718 | return rss; |
714 | } |
|
|
715 | |
|
|
716 | /** set stacklevel support **************************************************/ |
|
|
717 | |
|
|
718 | /* we sometimes need to create the effect of pp_set_stacklevel calling us */ |
|
|
719 | #define SSL_HEAD (void)0 |
|
|
720 | /* we somtimes need to create the effect of leaving via pp_set_stacklevel */ |
|
|
721 | #define SSL_TAIL set_stacklevel_tail (aTHX) |
|
|
722 | |
|
|
723 | INLINE void |
|
|
724 | set_stacklevel_tail (pTHX) |
|
|
725 | { |
|
|
726 | dSP; |
|
|
727 | int gimme = GIMME_V; |
|
|
728 | |
|
|
729 | if (gimme == G_SCALAR) |
|
|
730 | XPUSHs (&PL_sv_undef); |
|
|
731 | |
|
|
732 | PUTBACK; |
|
|
733 | } |
719 | } |
734 | |
720 | |
735 | /** coroutine stack handling ************************************************/ |
721 | /** coroutine stack handling ************************************************/ |
736 | |
722 | |
737 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
723 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
… | |
… | |
823 | |
809 | |
824 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
810 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
825 | } |
811 | } |
826 | |
812 | |
827 | static void |
813 | static void |
|
|
814 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
815 | { |
|
|
816 | /* kind of mega-hacky, but works */ |
|
|
817 | ta->next = ta->prev = (struct coro *)ta; |
|
|
818 | } |
|
|
819 | |
|
|
820 | static int |
|
|
821 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
822 | { |
|
|
823 | return 0; |
|
|
824 | } |
|
|
825 | |
|
|
826 | static void |
828 | coro_setup (pTHX_ struct coro *coro) |
827 | coro_setup (pTHX_ struct coro *coro) |
829 | { |
828 | { |
830 | /* |
829 | /* |
831 | * emulate part of the perl startup here. |
830 | * emulate part of the perl startup here. |
832 | */ |
831 | */ |
… | |
… | |
871 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
870 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
872 | SPAGAIN; |
871 | SPAGAIN; |
873 | } |
872 | } |
874 | |
873 | |
875 | /* this newly created coroutine might be run on an existing cctx which most |
874 | /* this newly created coroutine might be run on an existing cctx which most |
876 | * likely was suspended in set_stacklevel, called from pp_set_stacklevel, |
875 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
877 | * so we have to emulate entering pp_set_stacklevel here. |
|
|
878 | */ |
876 | */ |
879 | SSL_HEAD; |
877 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
878 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
880 | } |
879 | } |
881 | |
880 | |
882 | static void |
881 | static void |
883 | coro_destruct (pTHX_ struct coro *coro) |
882 | coro_destruct (pTHX_ struct coro *coro) |
884 | { |
883 | { |
… | |
… | |
928 | static int |
927 | static int |
929 | runops_trace (pTHX) |
928 | runops_trace (pTHX) |
930 | { |
929 | { |
931 | COP *oldcop = 0; |
930 | COP *oldcop = 0; |
932 | int oldcxix = -2; |
931 | int oldcxix = -2; |
933 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
932 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
934 | coro_cctx *cctx = coro->cctx; |
933 | coro_cctx *cctx = coro->cctx; |
935 | |
934 | |
936 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
935 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
937 | { |
936 | { |
938 | PERL_ASYNC_CHECK (); |
937 | PERL_ASYNC_CHECK (); |
… | |
… | |
1048 | TAINT_NOT; |
1047 | TAINT_NOT; |
1049 | return 0; |
1048 | return 0; |
1050 | } |
1049 | } |
1051 | |
1050 | |
1052 | static void |
1051 | static void |
1053 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1052 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1054 | { |
1053 | { |
1055 | ta->prev = (struct coro *)cctx; |
1054 | ta->prev = (struct coro *)cctx; |
1056 | ta->next = 0; |
1055 | ta->next = 0; |
1057 | } |
1056 | } |
1058 | |
1057 | |
… | |
… | |
1087 | |
1086 | |
1088 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1087 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1089 | INLINE void |
1088 | INLINE void |
1090 | transfer_tail (pTHX) |
1089 | transfer_tail (pTHX) |
1091 | { |
1090 | { |
1092 | struct coro *next = (struct coro *)transfer_next; |
|
|
1093 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1094 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1095 | |
|
|
1096 | free_coro_mortal (aTHX); |
1091 | free_coro_mortal (aTHX); |
1097 | UNLOCK; |
|
|
1098 | |
|
|
1099 | if (expect_false (next->throw)) |
|
|
1100 | { |
|
|
1101 | SV *exception = sv_2mortal (next->throw); |
|
|
1102 | |
|
|
1103 | next->throw = 0; |
|
|
1104 | sv_setsv (ERRSV, exception); |
|
|
1105 | croak (0); |
|
|
1106 | } |
|
|
1107 | } |
1092 | } |
1108 | |
1093 | |
1109 | /* |
1094 | /* |
1110 | * this is a _very_ stripped down perl interpreter ;) |
1095 | * this is a _very_ stripped down perl interpreter ;) |
1111 | */ |
1096 | */ |
… | |
… | |
1118 | # endif |
1103 | # endif |
1119 | #endif |
1104 | #endif |
1120 | { |
1105 | { |
1121 | dTHX; |
1106 | dTHX; |
1122 | |
1107 | |
1123 | /* we are the alternative tail to pp_set_stacklevel */ |
1108 | /* normally we would need to skip the entersub here */ |
1124 | /* so do the same things here */ |
1109 | /* not doing so will re-execute it, which is exactly what we want */ |
1125 | SSL_TAIL; |
|
|
1126 | |
|
|
1127 | /* we now skip the op that did lead to transfer() */ |
|
|
1128 | PL_op = PL_op->op_next; |
1110 | /* PL_nop = PL_nop->op_next */ |
1129 | |
1111 | |
1130 | /* inject a fake subroutine call to cctx_init */ |
1112 | /* inject a fake subroutine call to cctx_init */ |
1131 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1113 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1132 | |
1114 | |
1133 | /* cctx_run is the alternative tail of transfer() */ |
1115 | /* cctx_run is the alternative tail of transfer() */ |
… | |
… | |
1297 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1279 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1298 | { |
1280 | { |
1299 | if (expect_true (prev != next)) |
1281 | if (expect_true (prev != next)) |
1300 | { |
1282 | { |
1301 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1283 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1302 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1284 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1303 | |
1285 | |
1304 | if (expect_false (next->flags & CF_RUNNING)) |
1286 | if (expect_false (next->flags & CF_RUNNING)) |
1305 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1287 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1306 | |
1288 | |
1307 | if (expect_false (next->flags & CF_DESTROYED)) |
1289 | if (expect_false (next->flags & CF_DESTROYED)) |
1308 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1290 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1309 | |
1291 | |
1310 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1292 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1311 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1293 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1312 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1294 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1313 | #endif |
1295 | #endif |
1314 | } |
1296 | } |
1315 | } |
1297 | } |
1316 | |
1298 | |
1317 | /* always use the TRANSFER macro */ |
1299 | /* always use the TRANSFER macro */ |
… | |
… | |
1321 | dSTACKLEVEL; |
1303 | dSTACKLEVEL; |
1322 | |
1304 | |
1323 | /* sometimes transfer is only called to set idle_sp */ |
1305 | /* sometimes transfer is only called to set idle_sp */ |
1324 | if (expect_false (!next)) |
1306 | if (expect_false (!next)) |
1325 | { |
1307 | { |
1326 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1308 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1327 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1309 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1328 | } |
1310 | } |
1329 | else if (expect_true (prev != next)) |
1311 | else if (expect_true (prev != next)) |
1330 | { |
1312 | { |
1331 | coro_cctx *prev__cctx; |
1313 | coro_cctx *prev__cctx; |
… | |
… | |
1338 | prev->flags |= CF_RUNNING; |
1320 | prev->flags |= CF_RUNNING; |
1339 | } |
1321 | } |
1340 | |
1322 | |
1341 | prev->flags &= ~CF_RUNNING; |
1323 | prev->flags &= ~CF_RUNNING; |
1342 | next->flags |= CF_RUNNING; |
1324 | next->flags |= CF_RUNNING; |
1343 | |
|
|
1344 | LOCK; |
|
|
1345 | |
1325 | |
1346 | /* first get rid of the old state */ |
1326 | /* first get rid of the old state */ |
1347 | save_perl (aTHX_ prev); |
1327 | save_perl (aTHX_ prev); |
1348 | |
1328 | |
1349 | if (expect_false (next->flags & CF_NEW)) |
1329 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1358 | |
1338 | |
1359 | prev__cctx = prev->cctx; |
1339 | prev__cctx = prev->cctx; |
1360 | |
1340 | |
1361 | /* possibly untie and reuse the cctx */ |
1341 | /* possibly untie and reuse the cctx */ |
1362 | if (expect_true ( |
1342 | if (expect_true ( |
1363 | prev__cctx->idle_sp == STACKLEVEL |
1343 | prev__cctx->idle_sp == (void *)stacklevel |
1364 | && !(prev__cctx->flags & CC_TRACE) |
1344 | && !(prev__cctx->flags & CC_TRACE) |
1365 | && !force_cctx |
1345 | && !force_cctx |
1366 | )) |
1346 | )) |
1367 | { |
1347 | { |
1368 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1348 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1369 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1349 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1370 | |
1350 | |
1371 | prev->cctx = 0; |
1351 | prev->cctx = 0; |
1372 | |
1352 | |
1373 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1353 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
… | |
… | |
1381 | |
1361 | |
1382 | ++next->usecount; |
1362 | ++next->usecount; |
1383 | |
1363 | |
1384 | if (expect_true (!next->cctx)) |
1364 | if (expect_true (!next->cctx)) |
1385 | next->cctx = cctx_get (aTHX); |
1365 | next->cctx = cctx_get (aTHX); |
1386 | |
|
|
1387 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
|
|
1388 | transfer_next = next; |
|
|
1389 | |
1366 | |
1390 | if (expect_false (prev__cctx != next->cctx)) |
1367 | if (expect_false (prev__cctx != next->cctx)) |
1391 | { |
1368 | { |
1392 | prev__cctx->top_env = PL_top_env; |
1369 | prev__cctx->top_env = PL_top_env; |
1393 | PL_top_env = next->cctx->top_env; |
1370 | PL_top_env = next->cctx->top_env; |
… | |
… | |
1407 | coro_state_destroy (pTHX_ struct coro *coro) |
1384 | coro_state_destroy (pTHX_ struct coro *coro) |
1408 | { |
1385 | { |
1409 | if (coro->flags & CF_DESTROYED) |
1386 | if (coro->flags & CF_DESTROYED) |
1410 | return 0; |
1387 | return 0; |
1411 | |
1388 | |
|
|
1389 | if (coro->on_destroy) |
|
|
1390 | coro->on_destroy (aTHX_ coro); |
|
|
1391 | |
1412 | coro->flags |= CF_DESTROYED; |
1392 | coro->flags |= CF_DESTROYED; |
1413 | |
1393 | |
1414 | if (coro->flags & CF_READY) |
1394 | if (coro->flags & CF_READY) |
1415 | { |
1395 | { |
1416 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1396 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1417 | /* alternative: look through all ready queues and remove the coro */ |
1397 | /* alternative: look through all ready queues and remove the coro */ |
1418 | LOCK; |
|
|
1419 | --coro_nready; |
1398 | --coro_nready; |
1420 | UNLOCK; |
|
|
1421 | } |
1399 | } |
1422 | else |
1400 | else |
1423 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1401 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1424 | |
1402 | |
1425 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1403 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1426 | { |
1404 | { |
1427 | struct coro temp; |
1405 | struct coro temp; |
1428 | |
1406 | |
1429 | if (coro->flags & CF_RUNNING) |
1407 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1430 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1431 | |
1408 | |
1432 | save_perl (aTHX_ &temp); |
1409 | save_perl (aTHX_ &temp); |
1433 | load_perl (aTHX_ coro); |
1410 | load_perl (aTHX_ coro); |
1434 | |
1411 | |
1435 | coro_destruct (aTHX_ coro); |
1412 | coro_destruct (aTHX_ coro); |
… | |
… | |
1486 | # define MGf_DUP 0 |
1463 | # define MGf_DUP 0 |
1487 | #endif |
1464 | #endif |
1488 | }; |
1465 | }; |
1489 | |
1466 | |
1490 | static void |
1467 | static void |
1491 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1468 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1492 | { |
1469 | { |
1493 | ta->prev = SvSTATE (prev_sv); |
1470 | ta->prev = SvSTATE (prev_sv); |
1494 | ta->next = SvSTATE (next_sv); |
1471 | ta->next = SvSTATE (next_sv); |
1495 | TRANSFER_CHECK (*ta); |
1472 | TRANSFER_CHECK (*ta); |
1496 | } |
1473 | } |
1497 | |
1474 | |
1498 | static void |
1475 | static void |
1499 | api_transfer (SV *prev_sv, SV *next_sv) |
1476 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1500 | { |
1477 | { |
1501 | dTHX; |
|
|
1502 | struct transfer_args ta; |
1478 | struct coro_transfer_args ta; |
1503 | |
1479 | |
1504 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1480 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1505 | TRANSFER (ta, 1); |
1481 | TRANSFER (ta, 1); |
1506 | } |
1482 | } |
1507 | |
1483 | |
1508 | /** Coro ********************************************************************/ |
1484 | /** Coro ********************************************************************/ |
1509 | |
1485 | |
1510 | static void |
1486 | INLINE void |
1511 | coro_enq (pTHX_ SV *coro_sv) |
1487 | coro_enq (pTHX_ struct coro *coro) |
1512 | { |
1488 | { |
1513 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1489 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1514 | } |
1490 | } |
1515 | |
1491 | |
1516 | static SV * |
1492 | INLINE SV * |
1517 | coro_deq (pTHX) |
1493 | coro_deq (pTHX) |
1518 | { |
1494 | { |
1519 | int prio; |
1495 | int prio; |
1520 | |
1496 | |
1521 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1497 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1524 | |
1500 | |
1525 | return 0; |
1501 | return 0; |
1526 | } |
1502 | } |
1527 | |
1503 | |
1528 | static int |
1504 | static int |
1529 | api_ready (SV *coro_sv) |
1505 | api_ready (pTHX_ SV *coro_sv) |
1530 | { |
1506 | { |
1531 | dTHX; |
|
|
1532 | struct coro *coro; |
1507 | struct coro *coro; |
1533 | SV *sv_hook; |
1508 | SV *sv_hook; |
1534 | void (*xs_hook)(void); |
1509 | void (*xs_hook)(void); |
1535 | |
1510 | |
1536 | if (SvROK (coro_sv)) |
1511 | if (SvROK (coro_sv)) |
… | |
… | |
1541 | if (coro->flags & CF_READY) |
1516 | if (coro->flags & CF_READY) |
1542 | return 0; |
1517 | return 0; |
1543 | |
1518 | |
1544 | coro->flags |= CF_READY; |
1519 | coro->flags |= CF_READY; |
1545 | |
1520 | |
1546 | LOCK; |
|
|
1547 | |
|
|
1548 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1521 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1549 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1522 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1550 | |
1523 | |
1551 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1524 | coro_enq (aTHX_ coro); |
1552 | ++coro_nready; |
1525 | ++coro_nready; |
1553 | |
1526 | |
1554 | UNLOCK; |
|
|
1555 | |
|
|
1556 | if (sv_hook) |
1527 | if (sv_hook) |
1557 | { |
1528 | { |
1558 | dSP; |
1529 | dSP; |
1559 | |
1530 | |
1560 | ENTER; |
1531 | ENTER; |
… | |
… | |
1574 | |
1545 | |
1575 | return 1; |
1546 | return 1; |
1576 | } |
1547 | } |
1577 | |
1548 | |
1578 | static int |
1549 | static int |
1579 | api_is_ready (SV *coro_sv) |
1550 | api_is_ready (pTHX_ SV *coro_sv) |
1580 | { |
1551 | { |
1581 | dTHX; |
|
|
1582 | |
|
|
1583 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1552 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1584 | } |
1553 | } |
1585 | |
1554 | |
1586 | INLINE void |
1555 | INLINE void |
1587 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1556 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1588 | { |
1557 | { |
1589 | SV *prev_sv, *next_sv; |
1558 | SV *prev_sv, *next_sv; |
1590 | |
1559 | |
1591 | for (;;) |
1560 | for (;;) |
1592 | { |
1561 | { |
1593 | LOCK; |
|
|
1594 | next_sv = coro_deq (aTHX); |
1562 | next_sv = coro_deq (aTHX); |
1595 | |
1563 | |
1596 | /* nothing to schedule: call the idle handler */ |
1564 | /* nothing to schedule: call the idle handler */ |
1597 | if (expect_false (!next_sv)) |
1565 | if (expect_false (!next_sv)) |
1598 | { |
1566 | { |
1599 | dSP; |
1567 | dSP; |
1600 | UNLOCK; |
|
|
1601 | |
1568 | |
1602 | ENTER; |
1569 | ENTER; |
1603 | SAVETMPS; |
1570 | SAVETMPS; |
1604 | |
1571 | |
1605 | PUSHMARK (SP); |
1572 | PUSHMARK (SP); |
… | |
… | |
1610 | FREETMPS; |
1577 | FREETMPS; |
1611 | LEAVE; |
1578 | LEAVE; |
1612 | continue; |
1579 | continue; |
1613 | } |
1580 | } |
1614 | |
1581 | |
1615 | ta->next = SvSTATE (next_sv); |
1582 | ta->next = SvSTATE_hv (next_sv); |
1616 | |
1583 | |
1617 | /* cannot transfer to destroyed coros, skip and look for next */ |
1584 | /* cannot transfer to destroyed coros, skip and look for next */ |
1618 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1585 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1619 | { |
1586 | { |
1620 | UNLOCK; |
|
|
1621 | SvREFCNT_dec (next_sv); |
1587 | SvREFCNT_dec (next_sv); |
1622 | /* coro_nready has already been taken care of by destroy */ |
1588 | /* coro_nready has already been taken care of by destroy */ |
1623 | continue; |
1589 | continue; |
1624 | } |
1590 | } |
1625 | |
1591 | |
1626 | --coro_nready; |
1592 | --coro_nready; |
1627 | UNLOCK; |
|
|
1628 | break; |
1593 | break; |
1629 | } |
1594 | } |
1630 | |
1595 | |
1631 | /* free this only after the transfer */ |
1596 | /* free this only after the transfer */ |
1632 | prev_sv = SvRV (coro_current); |
1597 | prev_sv = SvRV (coro_current); |
1633 | ta->prev = SvSTATE (prev_sv); |
1598 | ta->prev = SvSTATE_hv (prev_sv); |
1634 | TRANSFER_CHECK (*ta); |
1599 | TRANSFER_CHECK (*ta); |
1635 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1600 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1636 | ta->next->flags &= ~CF_READY; |
1601 | ta->next->flags &= ~CF_READY; |
1637 | SvRV_set (coro_current, next_sv); |
1602 | SvRV_set (coro_current, next_sv); |
1638 | |
1603 | |
1639 | LOCK; |
|
|
1640 | free_coro_mortal (aTHX); |
1604 | free_coro_mortal (aTHX); |
1641 | coro_mortal = prev_sv; |
1605 | coro_mortal = prev_sv; |
1642 | UNLOCK; |
|
|
1643 | } |
1606 | } |
1644 | |
1607 | |
1645 | INLINE void |
1608 | INLINE void |
1646 | prepare_cede (pTHX_ struct transfer_args *ta) |
1609 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1647 | { |
1610 | { |
1648 | api_ready (coro_current); |
1611 | api_ready (aTHX_ coro_current); |
1649 | prepare_schedule (aTHX_ ta); |
1612 | prepare_schedule (aTHX_ ta); |
1650 | } |
1613 | } |
1651 | |
1614 | |
|
|
1615 | INLINE void |
|
|
1616 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1617 | { |
|
|
1618 | SV *prev = SvRV (coro_current); |
|
|
1619 | |
|
|
1620 | if (coro_nready) |
|
|
1621 | { |
|
|
1622 | prepare_schedule (aTHX_ ta); |
|
|
1623 | api_ready (aTHX_ prev); |
|
|
1624 | } |
|
|
1625 | else |
|
|
1626 | prepare_nop (aTHX_ ta); |
|
|
1627 | } |
|
|
1628 | |
|
|
1629 | static void |
|
|
1630 | api_schedule (pTHX) |
|
|
1631 | { |
|
|
1632 | struct coro_transfer_args ta; |
|
|
1633 | |
|
|
1634 | prepare_schedule (aTHX_ &ta); |
|
|
1635 | TRANSFER (ta, 1); |
|
|
1636 | } |
|
|
1637 | |
1652 | static int |
1638 | static int |
1653 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1639 | api_cede (pTHX) |
1654 | { |
1640 | { |
1655 | if (coro_nready) |
1641 | struct coro_transfer_args ta; |
1656 | { |
1642 | |
1657 | SV *prev = SvRV (coro_current); |
|
|
1658 | prepare_schedule (aTHX_ ta); |
1643 | prepare_cede (aTHX_ &ta); |
1659 | api_ready (prev); |
1644 | |
|
|
1645 | if (expect_true (ta.prev != ta.next)) |
|
|
1646 | { |
|
|
1647 | TRANSFER (ta, 1); |
1660 | return 1; |
1648 | return 1; |
1661 | } |
1649 | } |
1662 | else |
1650 | else |
1663 | return 0; |
1651 | return 0; |
1664 | } |
1652 | } |
1665 | |
1653 | |
1666 | static void |
|
|
1667 | api_schedule (void) |
|
|
1668 | { |
|
|
1669 | dTHX; |
|
|
1670 | struct transfer_args ta; |
|
|
1671 | |
|
|
1672 | prepare_schedule (aTHX_ &ta); |
|
|
1673 | TRANSFER (ta, 1); |
|
|
1674 | } |
|
|
1675 | |
|
|
1676 | static int |
1654 | static int |
1677 | api_cede (void) |
1655 | api_cede_notself (pTHX) |
1678 | { |
1656 | { |
1679 | dTHX; |
1657 | if (coro_nready) |
|
|
1658 | { |
1680 | struct transfer_args ta; |
1659 | struct coro_transfer_args ta; |
1681 | |
1660 | |
1682 | prepare_cede (aTHX_ &ta); |
1661 | prepare_cede_notself (aTHX_ &ta); |
1683 | |
|
|
1684 | if (expect_true (ta.prev != ta.next)) |
|
|
1685 | { |
|
|
1686 | TRANSFER (ta, 1); |
1662 | TRANSFER (ta, 1); |
1687 | return 1; |
1663 | return 1; |
1688 | } |
1664 | } |
1689 | else |
1665 | else |
1690 | return 0; |
1666 | return 0; |
1691 | } |
1667 | } |
1692 | |
1668 | |
1693 | static int |
1669 | static void |
1694 | api_cede_notself (void) |
|
|
1695 | { |
|
|
1696 | dTHX; |
|
|
1697 | struct transfer_args ta; |
|
|
1698 | |
|
|
1699 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1700 | { |
|
|
1701 | TRANSFER (ta, 1); |
|
|
1702 | return 1; |
|
|
1703 | } |
|
|
1704 | else |
|
|
1705 | return 0; |
|
|
1706 | } |
|
|
1707 | |
|
|
1708 | static void |
|
|
1709 | api_trace (SV *coro_sv, int flags) |
1670 | api_trace (pTHX_ SV *coro_sv, int flags) |
1710 | { |
1671 | { |
1711 | dTHX; |
|
|
1712 | struct coro *coro = SvSTATE (coro_sv); |
1672 | struct coro *coro = SvSTATE (coro_sv); |
1713 | |
1673 | |
1714 | if (flags & CC_TRACE) |
1674 | if (flags & CC_TRACE) |
1715 | { |
1675 | { |
1716 | if (!coro->cctx) |
1676 | if (!coro->cctx) |
1717 | coro->cctx = cctx_new_run (); |
1677 | coro->cctx = cctx_new_run (); |
1718 | else if (!(coro->cctx->flags & CC_TRACE)) |
1678 | else if (!(coro->cctx->flags & CC_TRACE)) |
1719 | croak ("cannot enable tracing on coroutine with custom stack"); |
1679 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1720 | |
1680 | |
1721 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1681 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1722 | } |
1682 | } |
1723 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1683 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1724 | { |
1684 | { |
… | |
… | |
1729 | else |
1689 | else |
1730 | coro->slot->runops = RUNOPS_DEFAULT; |
1690 | coro->slot->runops = RUNOPS_DEFAULT; |
1731 | } |
1691 | } |
1732 | } |
1692 | } |
1733 | |
1693 | |
1734 | #if 0 |
|
|
1735 | static int |
|
|
1736 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1737 | { |
|
|
1738 | AV *padlist; |
|
|
1739 | AV *av = (AV *)mg->mg_obj; |
|
|
1740 | |
|
|
1741 | abort (); |
|
|
1742 | |
|
|
1743 | return 0; |
|
|
1744 | } |
|
|
1745 | |
|
|
1746 | static MGVTBL coro_gensub_vtbl = { |
|
|
1747 | 0, 0, 0, 0, |
|
|
1748 | coro_gensub_free |
|
|
1749 | }; |
|
|
1750 | #endif |
|
|
1751 | |
|
|
1752 | /*****************************************************************************/ |
1694 | /*****************************************************************************/ |
1753 | /* PerlIO::cede */ |
1695 | /* PerlIO::cede */ |
1754 | |
1696 | |
1755 | typedef struct |
1697 | typedef struct |
1756 | { |
1698 | { |
… | |
… | |
1783 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1725 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1784 | double now = nvtime (); |
1726 | double now = nvtime (); |
1785 | |
1727 | |
1786 | if (now >= self->next) |
1728 | if (now >= self->next) |
1787 | { |
1729 | { |
1788 | api_cede (); |
1730 | api_cede (aTHX); |
1789 | self->next = now + self->every; |
1731 | self->next = now + self->every; |
1790 | } |
1732 | } |
1791 | |
1733 | |
1792 | return PerlIOBuf_flush (aTHX_ f); |
1734 | return PerlIOBuf_flush (aTHX_ f); |
1793 | } |
1735 | } |
… | |
… | |
1824 | PerlIOBuf_set_ptrcnt, |
1766 | PerlIOBuf_set_ptrcnt, |
1825 | }; |
1767 | }; |
1826 | |
1768 | |
1827 | /*****************************************************************************/ |
1769 | /*****************************************************************************/ |
1828 | |
1770 | |
1829 | static const CV *ssl_cv; /* for quick consistency check */ |
|
|
1830 | |
|
|
1831 | static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */ |
1771 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1772 | static const CV *slf_cv; |
1832 | static SV *ssl_arg0; |
1773 | static SV *slf_arg0; |
1833 | static SV *ssl_arg1; |
1774 | static SV *slf_arg1; |
|
|
1775 | static SV *slf_arg2; |
|
|
1776 | static I32 slf_ax; /* top of stack, for restore */ |
1834 | |
1777 | |
1835 | /* this restores the stack in the case we patched the entersub, to */ |
1778 | /* this restores the stack in the case we patched the entersub, to */ |
1836 | /* recreate the stack frame as perl will on following calls */ |
1779 | /* recreate the stack frame as perl will on following calls */ |
1837 | /* since entersub cleared the stack */ |
1780 | /* since entersub cleared the stack */ |
1838 | static OP * |
1781 | static OP * |
1839 | pp_restore (pTHX) |
1782 | pp_restore (pTHX) |
1840 | { |
1783 | { |
1841 | dSP; |
1784 | SV **SP = PL_stack_base + slf_ax; |
1842 | |
1785 | |
1843 | PUSHMARK (SP); |
1786 | PUSHMARK (SP); |
1844 | |
1787 | |
1845 | EXTEND (SP, 3); |
1788 | EXTEND (SP, 3); |
1846 | if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0; |
1789 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
1847 | if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0; |
1790 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1791 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
1848 | PUSHs ((SV *)CvGV (ssl_cv)); |
1792 | PUSHs ((SV *)CvGV (slf_cv)); |
1849 | |
1793 | |
1850 | RETURNOP (ssl_restore.op_first); |
1794 | RETURNOP (slf_restore.op_first); |
1851 | } |
1795 | } |
1852 | |
1796 | |
1853 | /* declare prototype */ |
1797 | static void |
1854 | XS(XS_Coro__State__set_stacklevel); |
1798 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1799 | { |
|
|
1800 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1801 | } |
1855 | |
1802 | |
|
|
1803 | static void |
|
|
1804 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1805 | { |
|
|
1806 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1807 | |
|
|
1808 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1809 | frame->check = slf_check_nop; |
|
|
1810 | frame->data = (void *)SvIV (arg [0]); |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void |
|
|
1814 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1815 | { |
|
|
1816 | SV **arg = (SV **)slf_frame.data; |
|
|
1817 | |
|
|
1818 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1819 | |
|
|
1820 | /* if the destination has ->throw set, then copy it */ |
|
|
1821 | /* into the current coro's throw slot, so it will be raised */ |
|
|
1822 | /* after the schedule */ |
|
|
1823 | if (expect_false (ta->next->throw)) |
|
|
1824 | { |
|
|
1825 | struct coro *coro = SvSTATE_current; |
|
|
1826 | SvREFCNT_dec (coro->throw); |
|
|
1827 | coro->throw = ta->next->throw; |
|
|
1828 | ta->next->throw = 0; |
|
|
1829 | } |
|
|
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 | */ |
1856 | static OP * |
1873 | static OP * |
1857 | pp_set_stacklevel (pTHX) |
1874 | pp_slf (pTHX) |
1858 | { |
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 */ |
1859 | dSP; |
1884 | dSP; |
1860 | struct transfer_args ta; |
|
|
1861 | SV **arg = PL_stack_base + TOPMARK + 1; |
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
1862 | int items = SP - arg; /* args without function object */ |
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
1863 | |
1888 | |
1864 | /* do a quick consistency check on the "function" object, and if it isn't */ |
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
1865 | /* for us, divert to the real entersub */ |
1890 | /* for us, divert to the real entersub */ |
1866 | if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel) |
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
1867 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
1868 | |
1893 | |
1869 | /* pop args */ |
|
|
1870 | SP = PL_stack_base + POPMARK; |
|
|
1871 | |
|
|
1872 | if (!(PL_op->op_flags & OPf_STACKED)) |
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
1873 | { |
1895 | { |
1874 | /* ampersand-form of call, use @_ instead of stack */ |
1896 | /* ampersand-form of call, use @_ instead of stack */ |
1875 | AV *av = GvAV (PL_defgv); |
1897 | AV *av = GvAV (PL_defgv); |
1876 | arg = AvARRAY (av); |
1898 | arg = AvARRAY (av); |
1877 | items = AvFILLp (av) + 1; |
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 | { |
|
|
1928 | dSP; |
|
|
1929 | SV **bot = PL_stack_base + checkmark; |
|
|
1930 | int gimme = GIMME_V; |
|
|
1931 | |
|
|
1932 | slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */ |
|
|
1933 | |
|
|
1934 | /* make sure we put something on the stack in scalar context */ |
|
|
1935 | if (gimme == G_SCALAR) |
|
|
1936 | { |
|
|
1937 | if (sp == bot) |
|
|
1938 | XPUSHs (&PL_sv_undef); |
|
|
1939 | |
|
|
1940 | SP = bot + 1; |
1878 | } |
1941 | } |
1879 | |
1942 | |
1880 | PUTBACK; |
1943 | PUTBACK; |
1881 | switch (PL_op->op_private & 7) |
1944 | } |
|
|
1945 | |
|
|
1946 | { |
|
|
1947 | struct coro *coro = SvSTATE_current; |
|
|
1948 | |
|
|
1949 | if (expect_false (coro->throw)) |
1882 | { |
1950 | { |
1883 | case 0: |
1951 | SV *exception = sv_2mortal (coro->throw); |
1884 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0])); |
1952 | |
|
|
1953 | coro->throw = 0; |
|
|
1954 | sv_setsv (ERRSV, exception); |
1885 | break; |
1955 | croak (0); |
1886 | |
|
|
1887 | case 1: |
|
|
1888 | if (items != 2) |
|
|
1889 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items); |
|
|
1890 | |
|
|
1891 | prepare_transfer (aTHX_ &ta, arg [0], arg [1]); |
|
|
1892 | break; |
|
|
1893 | |
|
|
1894 | case 2: |
|
|
1895 | prepare_schedule (aTHX_ &ta); |
|
|
1896 | break; |
|
|
1897 | |
|
|
1898 | case 3: |
|
|
1899 | prepare_cede (aTHX_ &ta); |
|
|
1900 | break; |
|
|
1901 | |
|
|
1902 | case 4: |
|
|
1903 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1904 | goto skip; |
|
|
1905 | |
|
|
1906 | break; |
|
|
1907 | } |
1956 | } |
|
|
1957 | } |
1908 | |
1958 | |
1909 | TRANSFER (ta, 0); |
1959 | return NORMAL; |
1910 | SPAGAIN; |
|
|
1911 | |
|
|
1912 | skip: |
|
|
1913 | PUTBACK; |
|
|
1914 | SSL_TAIL; |
|
|
1915 | SPAGAIN; |
|
|
1916 | RETURN; |
|
|
1917 | } |
1960 | } |
|
|
1961 | |
|
|
1962 | static void |
|
|
1963 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1964 | { |
|
|
1965 | SV **arg = PL_stack_base + ax; |
|
|
1966 | int items = PL_stack_sp - arg + 1; |
|
|
1967 | |
|
|
1968 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1969 | |
|
|
1970 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1971 | && PL_op->op_ppaddr != pp_slf) |
|
|
1972 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1973 | |
|
|
1974 | #if 0 |
|
|
1975 | if (items > 3) |
|
|
1976 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1977 | #endif |
|
|
1978 | |
|
|
1979 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1980 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1981 | slf_cv = cv; |
|
|
1982 | |
|
|
1983 | /* we patch the op, and then re-run the whole call */ |
|
|
1984 | /* we have to put the same argument on the stack for this to work */ |
|
|
1985 | /* and this will be done by pp_restore */ |
|
|
1986 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1987 | slf_restore.op_type = OP_CUSTOM; |
|
|
1988 | slf_restore.op_ppaddr = pp_restore; |
|
|
1989 | slf_restore.op_first = PL_op; |
|
|
1990 | |
|
|
1991 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1992 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1993 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1994 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1995 | |
|
|
1996 | PL_op->op_ppaddr = pp_slf; |
|
|
1997 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1998 | |
|
|
1999 | PL_op = (OP *)&slf_restore; |
|
|
2000 | } |
|
|
2001 | |
|
|
2002 | /*****************************************************************************/ |
|
|
2003 | |
|
|
2004 | static void |
|
|
2005 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2006 | { |
|
|
2007 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2008 | IV count = SvIVX (count_sv); |
|
|
2009 | |
|
|
2010 | count += adjust; |
|
|
2011 | SvIVX (count_sv) = count; |
|
|
2012 | |
|
|
2013 | /* now wake up as many waiters as are expected to lock */ |
|
|
2014 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2015 | { |
|
|
2016 | SV *cb; |
|
|
2017 | |
|
|
2018 | /* swap first two elements so we can shift a waiter */ |
|
|
2019 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2020 | AvARRAY (av)[1] = count_sv; |
|
|
2021 | cb = av_shift (av); |
|
|
2022 | |
|
|
2023 | if (SvOBJECT (cb)) |
|
|
2024 | api_ready (aTHX_ cb); |
|
|
2025 | else |
|
|
2026 | croak ("callbacks not yet supported"); |
|
|
2027 | |
|
|
2028 | SvREFCNT_dec (cb); |
|
|
2029 | |
|
|
2030 | --count; |
|
|
2031 | } |
|
|
2032 | } |
|
|
2033 | |
|
|
2034 | static void |
|
|
2035 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2036 | { |
|
|
2037 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2038 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2039 | } |
|
|
2040 | |
|
|
2041 | static int |
|
|
2042 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2043 | { |
|
|
2044 | AV *av = (AV *)frame->data; |
|
|
2045 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2046 | |
|
|
2047 | if (SvIVX (count_sv) > 0) |
|
|
2048 | { |
|
|
2049 | SvSTATE_current->on_destroy = 0; |
|
|
2050 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2051 | return 0; |
|
|
2052 | } |
|
|
2053 | else |
|
|
2054 | { |
|
|
2055 | int i; |
|
|
2056 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2057 | /* waiters list and only add us if we aren't in there already */ |
|
|
2058 | /* this avoids some degenerate memory usage cases */ |
|
|
2059 | |
|
|
2060 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2061 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2062 | return 1; |
|
|
2063 | |
|
|
2064 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2065 | return 1; |
|
|
2066 | } |
|
|
2067 | } |
|
|
2068 | |
|
|
2069 | static void |
|
|
2070 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2071 | { |
|
|
2072 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2073 | |
|
|
2074 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2075 | { |
|
|
2076 | frame->data = (void *)av; |
|
|
2077 | frame->prepare = prepare_nop; |
|
|
2078 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2079 | } |
|
|
2080 | else |
|
|
2081 | { |
|
|
2082 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2083 | |
|
|
2084 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2085 | frame->prepare = prepare_schedule; |
|
|
2086 | |
|
|
2087 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2088 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2089 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2090 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2091 | } |
|
|
2092 | |
|
|
2093 | frame->check = slf_check_semaphore_down; |
|
|
2094 | |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | /*****************************************************************************/ |
|
|
2098 | |
|
|
2099 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2100 | |
|
|
2101 | /* create a closure from XS, returns a code reference */ |
|
|
2102 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2103 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2104 | static SV * |
|
|
2105 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2106 | { |
|
|
2107 | CV *cv = (CV *)NEWSV (0, 0); |
|
|
2108 | |
|
|
2109 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2110 | |
|
|
2111 | CvANON_on (cv); |
|
|
2112 | CvISXSUB_on (cv); |
|
|
2113 | CvXSUB (cv) = xsub; |
|
|
2114 | GENSUB_ARG = arg; |
|
|
2115 | |
|
|
2116 | return newRV_noinc ((SV *)cv); |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | /*****************************************************************************/ |
1918 | |
2120 | |
1919 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2121 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1920 | |
2122 | |
1921 | PROTOTYPES: DISABLE |
2123 | PROTOTYPES: DISABLE |
1922 | |
2124 | |
1923 | # these not obviously related functions are all rolled into the same xs |
|
|
1924 | # function to increase chances that they all will call transfer with the same |
|
|
1925 | # stack offset |
|
|
1926 | void |
|
|
1927 | _set_stacklevel (...) |
|
|
1928 | ALIAS: |
|
|
1929 | Coro::State::transfer = 1 |
|
|
1930 | Coro::schedule = 2 |
|
|
1931 | Coro::cede = 3 |
|
|
1932 | Coro::cede_notself = 4 |
|
|
1933 | CODE: |
|
|
1934 | { |
|
|
1935 | assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel)); |
|
|
1936 | |
|
|
1937 | /* we patch the op, and then re-run the whole call */ |
|
|
1938 | /* we have to put some dummy argument on the stack for this to work */ |
|
|
1939 | /* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */ |
|
|
1940 | ssl_restore.op_next = (OP *)&ssl_restore; |
|
|
1941 | ssl_restore.op_type = OP_NULL; |
|
|
1942 | ssl_restore.op_ppaddr = pp_restore; |
|
|
1943 | ssl_restore.op_first = PL_op; |
|
|
1944 | |
|
|
1945 | ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0; |
|
|
1946 | ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0; |
|
|
1947 | |
|
|
1948 | PL_op->op_ppaddr = pp_set_stacklevel; |
|
|
1949 | PL_op->op_private = PL_op->op_private & ~7 | ix; /* we potentially share our private flags with entersub */ |
|
|
1950 | |
|
|
1951 | PL_op = (OP *)&ssl_restore; |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | BOOT: |
2125 | BOOT: |
1955 | { |
2126 | { |
1956 | #ifdef USE_ITHREADS |
2127 | #ifdef USE_ITHREADS |
1957 | MUTEX_INIT (&coro_lock); |
|
|
1958 | # if CORO_PTHREAD |
2128 | # if CORO_PTHREAD |
1959 | coro_thx = PERL_GET_CONTEXT; |
2129 | coro_thx = PERL_GET_CONTEXT; |
1960 | # endif |
2130 | # endif |
1961 | #endif |
2131 | #endif |
1962 | BOOT_PAGESIZE; |
2132 | BOOT_PAGESIZE; |
1963 | |
|
|
1964 | ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0); |
|
|
1965 | |
2133 | |
1966 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2134 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1967 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2135 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1968 | |
2136 | |
1969 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2137 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
… | |
… | |
1985 | main_top_env = PL_top_env; |
2153 | main_top_env = PL_top_env; |
1986 | |
2154 | |
1987 | while (main_top_env->je_prev) |
2155 | while (main_top_env->je_prev) |
1988 | main_top_env = main_top_env->je_prev; |
2156 | main_top_env = main_top_env->je_prev; |
1989 | |
2157 | |
|
|
2158 | { |
|
|
2159 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2160 | |
|
|
2161 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2162 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2163 | newSVpv ("coro_slf", 0), 0); |
|
|
2164 | |
|
|
2165 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2166 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2167 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2168 | } |
|
|
2169 | |
1990 | coroapi.ver = CORO_API_VERSION; |
2170 | coroapi.ver = CORO_API_VERSION; |
1991 | coroapi.rev = CORO_API_REVISION; |
2171 | coroapi.rev = CORO_API_REVISION; |
|
|
2172 | |
1992 | coroapi.transfer = api_transfer; |
2173 | coroapi.transfer = api_transfer; |
|
|
2174 | |
|
|
2175 | coroapi.sv_state = SvSTATE_; |
|
|
2176 | coroapi.execute_slf = api_execute_slf; |
|
|
2177 | coroapi.prepare_nop = prepare_nop; |
|
|
2178 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2179 | coroapi.prepare_cede = prepare_cede; |
|
|
2180 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1993 | |
2181 | |
1994 | { |
2182 | { |
1995 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2183 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1996 | |
2184 | |
1997 | if (!svp) croak ("Time::HiRes is required"); |
2185 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
2029 | for (i = 1; i < items; i++) |
2217 | for (i = 1; i < items; i++) |
2030 | av_push (coro->args, newSVsv (ST (i))); |
2218 | av_push (coro->args, newSVsv (ST (i))); |
2031 | } |
2219 | } |
2032 | OUTPUT: |
2220 | OUTPUT: |
2033 | RETVAL |
2221 | RETVAL |
|
|
2222 | |
|
|
2223 | void |
|
|
2224 | _set_stacklevel (...) |
|
|
2225 | CODE: |
|
|
2226 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
|
|
2227 | |
|
|
2228 | void |
|
|
2229 | transfer (...) |
|
|
2230 | PROTOTYPE: $$ |
|
|
2231 | CODE: |
|
|
2232 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2034 | |
2233 | |
2035 | bool |
2234 | bool |
2036 | _destroy (SV *coro_sv) |
2235 | _destroy (SV *coro_sv) |
2037 | CODE: |
2236 | CODE: |
2038 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2237 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
2045 | CODE: |
2244 | CODE: |
2046 | _exit (code); |
2245 | _exit (code); |
2047 | |
2246 | |
2048 | int |
2247 | int |
2049 | cctx_stacksize (int new_stacksize = 0) |
2248 | cctx_stacksize (int new_stacksize = 0) |
|
|
2249 | PROTOTYPE: ;$ |
2050 | CODE: |
2250 | CODE: |
2051 | RETVAL = cctx_stacksize; |
2251 | RETVAL = cctx_stacksize; |
2052 | if (new_stacksize) |
2252 | if (new_stacksize) |
2053 | { |
2253 | { |
2054 | cctx_stacksize = new_stacksize; |
2254 | cctx_stacksize = new_stacksize; |
… | |
… | |
2057 | OUTPUT: |
2257 | OUTPUT: |
2058 | RETVAL |
2258 | RETVAL |
2059 | |
2259 | |
2060 | int |
2260 | int |
2061 | cctx_max_idle (int max_idle = 0) |
2261 | cctx_max_idle (int max_idle = 0) |
|
|
2262 | PROTOTYPE: ;$ |
2062 | CODE: |
2263 | CODE: |
2063 | RETVAL = cctx_max_idle; |
2264 | RETVAL = cctx_max_idle; |
2064 | if (max_idle > 1) |
2265 | if (max_idle > 1) |
2065 | cctx_max_idle = max_idle; |
2266 | cctx_max_idle = max_idle; |
2066 | OUTPUT: |
2267 | OUTPUT: |
2067 | RETVAL |
2268 | RETVAL |
2068 | |
2269 | |
2069 | int |
2270 | int |
2070 | cctx_count () |
2271 | cctx_count () |
|
|
2272 | PROTOTYPE: |
2071 | CODE: |
2273 | CODE: |
2072 | RETVAL = cctx_count; |
2274 | RETVAL = cctx_count; |
2073 | OUTPUT: |
2275 | OUTPUT: |
2074 | RETVAL |
2276 | RETVAL |
2075 | |
2277 | |
2076 | int |
2278 | int |
2077 | cctx_idle () |
2279 | cctx_idle () |
|
|
2280 | PROTOTYPE: |
2078 | CODE: |
2281 | CODE: |
2079 | RETVAL = cctx_idle; |
2282 | RETVAL = cctx_idle; |
2080 | OUTPUT: |
2283 | OUTPUT: |
2081 | RETVAL |
2284 | RETVAL |
2082 | |
2285 | |
2083 | void |
2286 | void |
2084 | list () |
2287 | list () |
|
|
2288 | PROTOTYPE: |
2085 | PPCODE: |
2289 | PPCODE: |
2086 | { |
2290 | { |
2087 | struct coro *coro; |
2291 | struct coro *coro; |
2088 | for (coro = coro_first; coro; coro = coro->next) |
2292 | for (coro = coro_first; coro; coro = coro->next) |
2089 | if (coro->hv) |
2293 | if (coro->hv) |
… | |
… | |
2156 | SvREFCNT_dec (self->throw); |
2360 | SvREFCNT_dec (self->throw); |
2157 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2361 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2158 | |
2362 | |
2159 | void |
2363 | void |
2160 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2364 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2365 | PROTOTYPE: $;$ |
|
|
2366 | C_ARGS: aTHX_ coro, flags |
2161 | |
2367 | |
2162 | SV * |
2368 | SV * |
2163 | has_cctx (Coro::State coro) |
2369 | has_cctx (Coro::State coro) |
2164 | PROTOTYPE: $ |
2370 | PROTOTYPE: $ |
2165 | CODE: |
2371 | CODE: |
… | |
… | |
2189 | OUTPUT: |
2395 | OUTPUT: |
2190 | RETVAL |
2396 | RETVAL |
2191 | |
2397 | |
2192 | void |
2398 | void |
2193 | force_cctx () |
2399 | force_cctx () |
|
|
2400 | PROTOTYPE: |
2194 | CODE: |
2401 | CODE: |
2195 | struct coro *coro = SvSTATE (coro_current); |
|
|
2196 | coro->cctx->idle_sp = 0; |
2402 | SvSTATE_current->cctx->idle_sp = 0; |
2197 | |
2403 | |
2198 | void |
2404 | void |
2199 | swap_defsv (Coro::State self) |
2405 | swap_defsv (Coro::State self) |
2200 | PROTOTYPE: $ |
2406 | PROTOTYPE: $ |
2201 | ALIAS: |
2407 | ALIAS: |
2202 | swap_defav = 1 |
2408 | swap_defav = 1 |
2203 | CODE: |
2409 | CODE: |
2204 | if (!self->slot) |
2410 | if (!self->slot) |
2205 | croak ("cannot swap state with coroutine that has no saved state"); |
2411 | croak ("cannot swap state with coroutine that has no saved state,"); |
2206 | else |
2412 | else |
2207 | { |
2413 | { |
2208 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2414 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2209 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2415 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2210 | |
2416 | |
… | |
… | |
2242 | coroapi.schedule = api_schedule; |
2448 | coroapi.schedule = api_schedule; |
2243 | coroapi.cede = api_cede; |
2449 | coroapi.cede = api_cede; |
2244 | coroapi.cede_notself = api_cede_notself; |
2450 | coroapi.cede_notself = api_cede_notself; |
2245 | coroapi.ready = api_ready; |
2451 | coroapi.ready = api_ready; |
2246 | coroapi.is_ready = api_is_ready; |
2452 | coroapi.is_ready = api_is_ready; |
2247 | coroapi.nready = &coro_nready; |
2453 | coroapi.nready = coro_nready; |
2248 | coroapi.current = coro_current; |
2454 | coroapi.current = coro_current; |
2249 | |
2455 | |
2250 | GCoroAPI = &coroapi; |
2456 | GCoroAPI = &coroapi; |
2251 | sv_setiv (sv, (IV)&coroapi); |
2457 | sv_setiv (sv, (IV)&coroapi); |
2252 | SvREADONLY_on (sv); |
2458 | SvREADONLY_on (sv); |
2253 | } |
2459 | } |
2254 | } |
2460 | } |
|
|
2461 | |
|
|
2462 | void |
|
|
2463 | schedule (...) |
|
|
2464 | CODE: |
|
|
2465 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2466 | |
|
|
2467 | void |
|
|
2468 | cede (...) |
|
|
2469 | CODE: |
|
|
2470 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2471 | |
|
|
2472 | void |
|
|
2473 | cede_notself (...) |
|
|
2474 | CODE: |
|
|
2475 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2255 | |
2476 | |
2256 | void |
2477 | void |
2257 | _set_current (SV *current) |
2478 | _set_current (SV *current) |
2258 | PROTOTYPE: $ |
2479 | PROTOTYPE: $ |
2259 | CODE: |
2480 | CODE: |
… | |
… | |
2262 | |
2483 | |
2263 | void |
2484 | void |
2264 | _set_readyhook (SV *hook) |
2485 | _set_readyhook (SV *hook) |
2265 | PROTOTYPE: $ |
2486 | PROTOTYPE: $ |
2266 | CODE: |
2487 | CODE: |
2267 | LOCK; |
|
|
2268 | SvREFCNT_dec (coro_readyhook); |
2488 | SvREFCNT_dec (coro_readyhook); |
2269 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2489 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2270 | UNLOCK; |
|
|
2271 | |
2490 | |
2272 | int |
2491 | int |
2273 | prio (Coro::State coro, int newprio = 0) |
2492 | prio (Coro::State coro, int newprio = 0) |
|
|
2493 | PROTOTYPE: $;$ |
2274 | ALIAS: |
2494 | ALIAS: |
2275 | nice = 1 |
2495 | nice = 1 |
2276 | CODE: |
2496 | CODE: |
2277 | { |
2497 | { |
2278 | RETVAL = coro->prio; |
2498 | RETVAL = coro->prio; |
… | |
… | |
2293 | |
2513 | |
2294 | SV * |
2514 | SV * |
2295 | ready (SV *self) |
2515 | ready (SV *self) |
2296 | PROTOTYPE: $ |
2516 | PROTOTYPE: $ |
2297 | CODE: |
2517 | CODE: |
2298 | RETVAL = boolSV (api_ready (self)); |
2518 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2299 | OUTPUT: |
2519 | OUTPUT: |
2300 | RETVAL |
2520 | RETVAL |
2301 | |
2521 | |
2302 | int |
2522 | int |
2303 | nready (...) |
2523 | nready (...) |
… | |
… | |
2310 | # for async_pool speedup |
2530 | # for async_pool speedup |
2311 | void |
2531 | void |
2312 | _pool_1 (SV *cb) |
2532 | _pool_1 (SV *cb) |
2313 | CODE: |
2533 | CODE: |
2314 | { |
2534 | { |
2315 | struct coro *coro = SvSTATE (coro_current); |
|
|
2316 | HV *hv = (HV *)SvRV (coro_current); |
2535 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2536 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
2317 | AV *defav = GvAV (PL_defgv); |
2537 | AV *defav = GvAV (PL_defgv); |
2318 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2538 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2319 | AV *invoke_av; |
2539 | AV *invoke_av; |
2320 | int i, len; |
2540 | int i, len; |
2321 | |
2541 | |
… | |
… | |
2342 | { |
2562 | { |
2343 | av_fill (defav, len - 1); |
2563 | av_fill (defav, len - 1); |
2344 | for (i = 0; i < len; ++i) |
2564 | for (i = 0; i < len; ++i) |
2345 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2565 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2346 | } |
2566 | } |
2347 | |
|
|
2348 | SvREFCNT_dec (invoke); |
|
|
2349 | } |
2567 | } |
2350 | |
2568 | |
2351 | void |
2569 | void |
2352 | _pool_2 (SV *cb) |
2570 | _pool_2 (SV *cb) |
2353 | CODE: |
2571 | CODE: |
2354 | { |
2572 | { |
2355 | struct coro *coro = SvSTATE (coro_current); |
2573 | struct coro *coro = SvSTATE_current; |
2356 | |
2574 | |
2357 | sv_setsv (cb, &PL_sv_undef); |
2575 | sv_setsv (cb, &PL_sv_undef); |
2358 | |
2576 | |
2359 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2577 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2360 | coro->saved_deffh = 0; |
2578 | coro->saved_deffh = 0; |
… | |
… | |
2373 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2591 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2374 | |
2592 | |
2375 | coro->prio = 0; |
2593 | coro->prio = 0; |
2376 | |
2594 | |
2377 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2595 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2378 | api_trace (coro_current, 0); |
2596 | api_trace (aTHX_ coro_current, 0); |
2379 | |
2597 | |
2380 | av_push (av_async_pool, newSVsv (coro_current)); |
2598 | av_push (av_async_pool, newSVsv (coro_current)); |
2381 | } |
2599 | } |
2382 | |
|
|
2383 | #if 0 |
|
|
2384 | |
|
|
2385 | void |
|
|
2386 | _generator_call (...) |
|
|
2387 | PROTOTYPE: @ |
|
|
2388 | PPCODE: |
|
|
2389 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2390 | xxxx |
|
|
2391 | abort (); |
|
|
2392 | |
|
|
2393 | SV * |
|
|
2394 | gensub (SV *sub, ...) |
|
|
2395 | PROTOTYPE: &;@ |
|
|
2396 | CODE: |
|
|
2397 | { |
|
|
2398 | struct coro *coro; |
|
|
2399 | MAGIC *mg; |
|
|
2400 | CV *xcv; |
|
|
2401 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2402 | int i; |
|
|
2403 | |
|
|
2404 | CvGV (ncv) = CvGV (cv); |
|
|
2405 | CvFILE (ncv) = CvFILE (cv); |
|
|
2406 | |
|
|
2407 | Newz (0, coro, 1, struct coro); |
|
|
2408 | coro->args = newAV (); |
|
|
2409 | coro->flags = CF_NEW; |
|
|
2410 | |
|
|
2411 | av_extend (coro->args, items - 1); |
|
|
2412 | for (i = 1; i < items; i++) |
|
|
2413 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2414 | |
|
|
2415 | CvISXSUB_on (ncv); |
|
|
2416 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2417 | |
|
|
2418 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2419 | |
|
|
2420 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2421 | CvANON_on (ncv); |
|
|
2422 | |
|
|
2423 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2424 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2425 | } |
|
|
2426 | OUTPUT: |
|
|
2427 | RETVAL |
|
|
2428 | |
|
|
2429 | #endif |
|
|
2430 | |
2600 | |
2431 | |
2601 | |
2432 | MODULE = Coro::State PACKAGE = Coro::AIO |
2602 | MODULE = Coro::State PACKAGE = Coro::AIO |
2433 | |
2603 | |
2434 | void |
2604 | void |
2435 | _get_state (SV *self) |
2605 | _get_state (SV *self) |
|
|
2606 | PROTOTYPE: $ |
2436 | PPCODE: |
2607 | PPCODE: |
2437 | { |
2608 | { |
2438 | AV *defav = GvAV (PL_defgv); |
2609 | AV *defav = GvAV (PL_defgv); |
2439 | AV *av = newAV (); |
2610 | AV *av = newAV (); |
2440 | int i; |
2611 | int i; |
… | |
… | |
2455 | |
2626 | |
2456 | av_push (av, data_sv); |
2627 | av_push (av, data_sv); |
2457 | |
2628 | |
2458 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
2629 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
2459 | |
2630 | |
2460 | api_ready (self); |
2631 | api_ready (aTHX_ self); |
2461 | } |
2632 | } |
2462 | |
2633 | |
2463 | void |
2634 | void |
2464 | _set_state (SV *state) |
2635 | _set_state (SV *state) |
2465 | PROTOTYPE: $ |
2636 | PROTOTYPE: $ |
… | |
… | |
2483 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2654 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2484 | |
2655 | |
2485 | BOOT: |
2656 | BOOT: |
2486 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2657 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2487 | |
2658 | |
2488 | SV * |
2659 | void |
2489 | _schedule (...) |
2660 | _schedule (...) |
2490 | PROTOTYPE: @ |
|
|
2491 | CODE: |
2661 | CODE: |
2492 | { |
2662 | { |
2493 | static int incede; |
2663 | static int incede; |
2494 | |
2664 | |
2495 | api_cede_notself (); |
2665 | api_cede_notself (aTHX); |
2496 | |
2666 | |
2497 | ++incede; |
2667 | ++incede; |
2498 | while (coro_nready >= incede && api_cede ()) |
2668 | while (coro_nready >= incede && api_cede (aTHX)) |
2499 | ; |
2669 | ; |
2500 | |
2670 | |
2501 | sv_setsv (sv_activity, &PL_sv_undef); |
2671 | sv_setsv (sv_activity, &PL_sv_undef); |
2502 | if (coro_nready >= incede) |
2672 | if (coro_nready >= incede) |
2503 | { |
2673 | { |
… | |
… | |
2514 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2684 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2515 | |
2685 | |
2516 | BOOT: |
2686 | BOOT: |
2517 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2687 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2518 | |
2688 | |
|
|
2689 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
2690 | |
|
|
2691 | SV * |
|
|
2692 | new (SV *klass, SV *count_ = 0) |
|
|
2693 | CODE: |
|
|
2694 | { |
|
|
2695 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2696 | AV *av = newAV (); |
|
|
2697 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
|
|
2698 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
|
|
2699 | } |
|
|
2700 | OUTPUT: |
|
|
2701 | RETVAL |
|
|
2702 | |
|
|
2703 | SV * |
|
|
2704 | count (SV *self) |
|
|
2705 | CODE: |
|
|
2706 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2707 | OUTPUT: |
|
|
2708 | RETVAL |
|
|
2709 | |
|
|
2710 | void |
|
|
2711 | up (SV *self, int adjust = 1) |
|
|
2712 | ALIAS: |
|
|
2713 | adjust = 1 |
|
|
2714 | CODE: |
|
|
2715 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
2716 | |
|
|
2717 | void |
|
|
2718 | down (SV *self) |
|
|
2719 | CODE: |
|
|
2720 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2721 | |
|
|
2722 | void |
|
|
2723 | try (SV *self) |
|
|
2724 | PPCODE: |
|
|
2725 | { |
|
|
2726 | AV *av = (AV *)SvRV (self); |
|
|
2727 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2728 | IV count = SvIVX (count_sv); |
|
|
2729 | |
|
|
2730 | if (count > 0) |
|
|
2731 | { |
|
|
2732 | --count; |
|
|
2733 | SvIVX (count_sv) = count; |
|
|
2734 | XSRETURN_YES; |
|
|
2735 | } |
|
|
2736 | else |
|
|
2737 | XSRETURN_NO; |
|
|
2738 | } |
|
|
2739 | |
|
|
2740 | void |
|
|
2741 | waiters (SV *self) |
|
|
2742 | CODE: |
|
|
2743 | { |
|
|
2744 | AV *av = (AV *)SvRV (self); |
|
|
2745 | |
|
|
2746 | if (GIMME_V == G_SCALAR) |
|
|
2747 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2748 | else |
|
|
2749 | { |
|
|
2750 | int i; |
|
|
2751 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
|
|
2752 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2753 | PUSHs (newSVsv (AvARRAY (av)[i])); |
|
|
2754 | } |
|
|
2755 | } |
|
|
2756 | |