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/cvs/Coro/Coro/State.xs
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Comparing Coro/Coro/State.xs (file contents):
Revision 1.289 by root, Mon Nov 17 08:25:06 2008 UTC vs.
Revision 1.328 by root, Tue Nov 25 09:49:43 2008 UTC

… …
16 16
17#ifdef WIN32 17#ifdef WIN32
18# undef setjmp 18# undef setjmp
19# undef longjmp 19# undef longjmp
20# undef _exit 20# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 21# define setjmp _setjmp /* deep magic */
22#else 22#else
23# include <inttypes.h> /* most portable stdint.h */ 23# include <inttypes.h> /* most portable stdint.h */
24#endif 24#endif
25 25
26#ifdef HAVE_MMAP 26#ifdef HAVE_MMAP
… …
55 55
56#define PERL_VERSION_ATLEAST(a,b,c) \ 56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \ 57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \ 58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \ 59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) 60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61 61
62#if !PERL_VERSION_ATLEAST (5,6,0) 62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr 63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr 64# define PL_ppaddr ppaddr
65# endif 65# endif
… …
98# define newSV(l) NEWSV(0,l) 98# define newSV(l) NEWSV(0,l)
99#endif 99#endif
100#ifndef CvISXSUB_on 100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv 101# define CvISXSUB_on(cv) (void)cv
102#endif 102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
103 109
104/* 5.8.7 */ 110/* 5.8.7 */
105#ifndef SvRV_set 111#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v) 112# define SvRV_set(s,v) SvRV(s) = (v)
107#endif 113#endif
… …
120#endif 126#endif
121 127
122/* The next macros try to return the current stack pointer, in an as 128/* The next macros try to return the current stack pointer, in an as
123 * portable way as possible. */ 129 * portable way as possible. */
124#if __GNUC__ >= 4 130#if __GNUC__ >= 4
131# define dSTACKLEVEL int stacklevel_dummy
125# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 132# define STACKLEVEL __builtin_frame_address (0)
126#else 133#else
127# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 134# define dSTACKLEVEL volatile void *stacklevel
135# define STACKLEVEL ((void *)&stacklevel)
128#endif 136#endif
129 137
130#define IN_DESTRUCT (PL_main_cv == Nullcv) 138#define IN_DESTRUCT (PL_main_cv == Nullcv)
131 139
132#if __GNUC__ >= 3 140#if __GNUC__ >= 3
… …
143#define expect_true(expr) expect ((expr) != 0, 1) 151#define expect_true(expr) expect ((expr) != 0, 1)
144 152
145#define NOINLINE attribute ((noinline)) 153#define NOINLINE attribute ((noinline))
146 154
147#include "CoroAPI.h" 155#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */
148 157
149#ifdef USE_ITHREADS 158#ifdef USE_ITHREADS
150# if CORO_PTHREAD 159# if CORO_PTHREAD
151static void *coro_thx; 160static void *coro_thx;
152# endif 161# endif
153#endif 162#endif
154 163
155static double (*nvtime)(); /* so why doesn't it take void? */ 164static double (*nvtime)(); /* so why doesn't it take void? */
165
166/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX);
156 169
157static U32 cctx_gen; 170static U32 cctx_gen;
158static size_t cctx_stacksize = CORO_STACKSIZE; 171static size_t cctx_stacksize = CORO_STACKSIZE;
159static struct CoroAPI coroapi; 172static struct CoroAPI coroapi;
160static AV *main_mainstack; /* used to differentiate between $main and others */ 173static AV *main_mainstack; /* used to differentiate between $main and others */
161static JMPENV *main_top_env; 174static JMPENV *main_top_env;
162static HV *coro_state_stash, *coro_stash; 175static HV *coro_state_stash, *coro_stash;
163static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
164 177
178static AV *av_destroy; /* destruction queue */
179static SV *sv_manager; /* the manager coro */
180static SV *sv_idle; /* $Coro::idle */
181
165static GV *irsgv; /* $/ */ 182static GV *irsgv; /* $/ */
166static GV *stdoutgv; /* *STDOUT */ 183static GV *stdoutgv; /* *STDOUT */
167static SV *rv_diehook; 184static SV *rv_diehook;
168static SV *rv_warnhook; 185static SV *rv_warnhook;
169static HV *hv_sig; /* %SIG */ 186static HV *hv_sig; /* %SIG */
170 187
171/* async_pool helper stuff */ 188/* async_pool helper stuff */
172static SV *sv_pool_rss; 189static SV *sv_pool_rss;
173static SV *sv_pool_size; 190static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */
174static AV *av_async_pool; 192static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
175 196
176/* Coro::AnyEvent */ 197/* Coro::AnyEvent */
177static SV *sv_activity; 198static SV *sv_activity;
178 199
179static struct coro_cctx *cctx_first; 200static struct coro_cctx *cctx_first;
… …
208 int valgrind_id; 229 int valgrind_id;
209#endif 230#endif
210 unsigned char flags; 231 unsigned char flags;
211} coro_cctx; 232} coro_cctx;
212 233
234coro_cctx *cctx_current; /* the currently running cctx */
235
236/*****************************************************************************/
237
213enum { 238enum {
214 CF_RUNNING = 0x0001, /* coroutine is running */ 239 CF_RUNNING = 0x0001, /* coroutine is running */
215 CF_READY = 0x0002, /* coroutine is ready */ 240 CF_READY = 0x0002, /* coroutine is ready */
216 CF_NEW = 0x0004, /* has never been switched to */ 241 CF_NEW = 0x0004, /* has never been switched to */
217 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
… …
222{ 247{
223 SV *defsv; 248 SV *defsv;
224 AV *defav; 249 AV *defav;
225 SV *errsv; 250 SV *errsv;
226 SV *irsgv; 251 SV *irsgv;
252 HV *hinthv;
227#define VAR(name,type) type name; 253#define VAR(name,type) type name;
228# include "state.h" 254# include "state.h"
229#undef VAR 255#undef VAR
230} perl_slots; 256} perl_slots;
231 257
… …
239 /* state data */ 265 /* state data */
240 struct CoroSLF slf_frame; /* saved slf frame */ 266 struct CoroSLF slf_frame; /* saved slf frame */
241 AV *mainstack; 267 AV *mainstack;
242 perl_slots *slot; /* basically the saved sp */ 268 perl_slots *slot; /* basically the saved sp */
243 269
270 CV *startcv; /* the CV to execute */
244 AV *args; /* data associated with this coroutine (initial args) */ 271 AV *args; /* data associated with this coroutine (initial args) */
245 int refcnt; /* coroutines are refcounted, yes */ 272 int refcnt; /* coroutines are refcounted, yes */
246 int flags; /* CF_ flags */ 273 int flags; /* CF_ flags */
247 HV *hv; /* the perl hash associated with this coro, if any */ 274 HV *hv; /* the perl hash associated with this coro, if any */
248 void (*on_destroy)(pTHX_ struct coro *coro); 275 void (*on_destroy)(pTHX_ struct coro *coro);
249 276
250 /* statistics */ 277 /* statistics */
251 int usecount; /* number of transfers to this coro */ 278 int usecount; /* number of transfers to this coro */
252 279
253 /* coro process data */ 280 /* coro process data */
254 int prio; 281 int prio;
255 SV *throw; /* exception to be thrown */ 282 SV *except; /* exception to be thrown */
283 SV *rouse_cb;
256 284
257 /* async_pool */ 285 /* async_pool */
258 SV *saved_deffh; 286 SV *saved_deffh;
287 SV *invoke_cb;
288 AV *invoke_av;
259 289
260 /* linked list */ 290 /* linked list */
261 struct coro *next, *prev; 291 struct coro *next, *prev;
262}; 292};
263 293
… …
266 296
267/* the following variables are effectively part of the perl context */ 297/* the following variables are effectively part of the perl context */
268/* and get copied between struct coro and these variables */ 298/* and get copied between struct coro and these variables */
269/* the mainr easonw e don't support windows process emulation */ 299/* the mainr easonw e don't support windows process emulation */
270static struct CoroSLF slf_frame; /* the current slf frame */ 300static struct CoroSLF slf_frame; /* the current slf frame */
271static SV *coro_throw;
272 301
273/** Coro ********************************************************************/ 302/** Coro ********************************************************************/
274 303
275#define PRIO_MAX 3 304#define PRIO_MAX 3
276#define PRIO_HIGH 1 305#define PRIO_HIGH 1
… …
281 310
282/* for Coro.pm */ 311/* for Coro.pm */
283static SV *coro_current; 312static SV *coro_current;
284static SV *coro_readyhook; 313static SV *coro_readyhook;
285static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
315static CV *cv_coro_run, *cv_coro_terminate;
286static struct coro *coro_first; 316static struct coro *coro_first;
287#define coro_nready coroapi.nready 317#define coro_nready coroapi.nready
288 318
289/** lowlevel stuff **********************************************************/ 319/** lowlevel stuff **********************************************************/
290 320
… …
316 get_hv (name, create); 346 get_hv (name, create);
317#endif 347#endif
318 return get_hv (name, create); 348 return get_hv (name, create);
319} 349}
320 350
351/* may croak */
352INLINE CV *
353coro_sv_2cv (pTHX_ SV *sv)
354{
355 HV *st;
356 GV *gvp;
357 return sv_2cv (sv, &st, &gvp, 0);
358}
359
321static AV * 360static AV *
322coro_clone_padlist (pTHX_ CV *cv) 361coro_derive_padlist (pTHX_ CV *cv)
323{ 362{
324 AV *padlist = CvPADLIST (cv); 363 AV *padlist = CvPADLIST (cv);
325 AV *newpadlist, *newpad; 364 AV *newpadlist, *newpad;
326 365
327 newpadlist = newAV (); 366 newpadlist = newAV ();
… …
442 else 481 else
443 { 482 {
444#if CORO_PREFER_PERL_FUNCTIONS 483#if CORO_PREFER_PERL_FUNCTIONS
445 /* this is probably cleaner? but also slower! */ 484 /* this is probably cleaner? but also slower! */
446 /* in practise, it seems to be less stable */ 485 /* in practise, it seems to be less stable */
447 CV *cp = Perl_cv_clone (cv); 486 CV *cp = Perl_cv_clone (aTHX_ cv);
448 CvPADLIST (cv) = CvPADLIST (cp); 487 CvPADLIST (cv) = CvPADLIST (cp);
449 CvPADLIST (cp) = 0; 488 CvPADLIST (cp) = 0;
450 SvREFCNT_dec (cp); 489 SvREFCNT_dec (cp);
451#else 490#else
452 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 491 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
453#endif 492#endif
454 } 493 }
455} 494}
456 495
457static void 496static void
… …
479 perl_slots *slot = c->slot; 518 perl_slots *slot = c->slot;
480 c->slot = 0; 519 c->slot = 0;
481 520
482 PL_mainstack = c->mainstack; 521 PL_mainstack = c->mainstack;
483 522
484 GvSV (PL_defgv) = slot->defsv; 523 GvSV (PL_defgv) = slot->defsv;
485 GvAV (PL_defgv) = slot->defav; 524 GvAV (PL_defgv) = slot->defav;
486 GvSV (PL_errgv) = slot->errsv; 525 GvSV (PL_errgv) = slot->errsv;
487 GvSV (irsgv) = slot->irsgv; 526 GvSV (irsgv) = slot->irsgv;
527 GvHV (PL_hintgv) = slot->hinthv;
488 528
489 #define VAR(name,type) PL_ ## name = slot->name; 529 #define VAR(name,type) PL_ ## name = slot->name;
490 # include "state.h" 530 # include "state.h"
491 #undef VAR 531 #undef VAR
492 532
… …
505 545
506 PUTBACK; 546 PUTBACK;
507 } 547 }
508 548
509 slf_frame = c->slf_frame; 549 slf_frame = c->slf_frame;
510 coro_throw = c->throw; 550 CORO_THROW = c->except;
511} 551}
512 552
513static void 553static void
514save_perl (pTHX_ Coro__State c) 554save_perl (pTHX_ Coro__State c)
515{ 555{
516 c->throw = coro_throw; 556 c->except = CORO_THROW;
517 c->slf_frame = slf_frame; 557 c->slf_frame = slf_frame;
518 558
519 { 559 {
520 dSP; 560 dSP;
521 I32 cxix = cxstack_ix; 561 I32 cxix = cxstack_ix;
… …
578 c->mainstack = PL_mainstack; 618 c->mainstack = PL_mainstack;
579 619
580 { 620 {
581 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 621 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
582 622
583 slot->defav = GvAV (PL_defgv); 623 slot->defav = GvAV (PL_defgv);
584 slot->defsv = DEFSV; 624 slot->defsv = DEFSV;
585 slot->errsv = ERRSV; 625 slot->errsv = ERRSV;
586 slot->irsgv = GvSV (irsgv); 626 slot->irsgv = GvSV (irsgv);
627 slot->hinthv = GvHV (PL_hintgv);
587 628
588 #define VAR(name,type) slot->name = PL_ ## name; 629 #define VAR(name,type) slot->name = PL_ ## name;
589 # include "state.h" 630 # include "state.h"
590 #undef VAR 631 #undef VAR
591 } 632 }
… …
596 * of perl.c:init_stacks, except that it uses less memory 637 * of perl.c:init_stacks, except that it uses less memory
597 * on the (sometimes correct) assumption that coroutines do 638 * on the (sometimes correct) assumption that coroutines do
598 * not usually need a lot of stackspace. 639 * not usually need a lot of stackspace.
599 */ 640 */
600#if CORO_PREFER_PERL_FUNCTIONS 641#if CORO_PREFER_PERL_FUNCTIONS
601# define coro_init_stacks init_stacks 642# define coro_init_stacks(thx) init_stacks ()
602#else 643#else
603static void 644static void
604coro_init_stacks (pTHX) 645coro_init_stacks (pTHX)
605{ 646{
606 PL_curstackinfo = new_stackinfo(32, 8); 647 PL_curstackinfo = new_stackinfo(32, 8);
… …
669#if !PERL_VERSION_ATLEAST (5,10,0) 710#if !PERL_VERSION_ATLEAST (5,10,0)
670 Safefree (PL_retstack); 711 Safefree (PL_retstack);
671#endif 712#endif
672} 713}
673 714
715#define CORO_RSS \
716 rss += sizeof (SYM (curstackinfo)); \
717 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
718 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
719 rss += SYM (tmps_max) * sizeof (SV *); \
720 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
721 rss += SYM (scopestack_max) * sizeof (I32); \
722 rss += SYM (savestack_max) * sizeof (ANY);
723
674static size_t 724static size_t
675coro_rss (pTHX_ struct coro *coro) 725coro_rss (pTHX_ struct coro *coro)
676{ 726{
677 size_t rss = sizeof (*coro); 727 size_t rss = sizeof (*coro);
678 728
679 if (coro->mainstack) 729 if (coro->mainstack)
680 { 730 {
681 perl_slots tmp_slot;
682 perl_slots *slot;
683
684 if (coro->flags & CF_RUNNING) 731 if (coro->flags & CF_RUNNING)
685 { 732 {
686 slot = &tmp_slot; 733 #define SYM(sym) PL_ ## sym
687 734 CORO_RSS;
688 #define VAR(name,type) slot->name = PL_ ## name;
689 # include "state.h"
690 #undef VAR 735 #undef SYM
691 } 736 }
692 else 737 else
693 slot = coro->slot;
694
695 if (slot)
696 { 738 {
697 rss += sizeof (slot->curstackinfo); 739 #define SYM(sym) coro->slot->sym
698 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 740 CORO_RSS;
699 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 741 #undef SYM
700 rss += slot->tmps_max * sizeof (SV *);
701 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
702 rss += slot->scopestack_max * sizeof (I32);
703 rss += slot->savestack_max * sizeof (ANY);
704
705#if !PERL_VERSION_ATLEAST (5,10,0)
706 rss += slot->retstack_max * sizeof (OP *);
707#endif
708 } 742 }
709 } 743 }
710 744
711 return rss; 745 return rss;
712} 746}
… …
814slf_check_nop (pTHX_ struct CoroSLF *frame) 848slf_check_nop (pTHX_ struct CoroSLF *frame)
815{ 849{
816 return 0; 850 return 0;
817} 851}
818 852
853static int
854slf_check_repeat (pTHX_ struct CoroSLF *frame)
855{
856 return 1;
857}
858
859static UNOP coro_setup_op;
860
819static void NOINLINE /* noinline to keep it out of the transfer fast path */ 861static void NOINLINE /* noinline to keep it out of the transfer fast path */
820coro_setup (pTHX_ struct coro *coro) 862coro_setup (pTHX_ struct coro *coro)
821{ 863{
822 /* 864 /*
823 * emulate part of the perl startup here. 865 * emulate part of the perl startup here.
… …
826 868
827 PL_runops = RUNOPS_DEFAULT; 869 PL_runops = RUNOPS_DEFAULT;
828 PL_curcop = &PL_compiling; 870 PL_curcop = &PL_compiling;
829 PL_in_eval = EVAL_NULL; 871 PL_in_eval = EVAL_NULL;
830 PL_comppad = 0; 872 PL_comppad = 0;
873 PL_comppad_name = 0;
874 PL_comppad_name_fill = 0;
875 PL_comppad_name_floor = 0;
831 PL_curpm = 0; 876 PL_curpm = 0;
832 PL_curpad = 0; 877 PL_curpad = 0;
833 PL_localizing = 0; 878 PL_localizing = 0;
834 PL_dirty = 0; 879 PL_dirty = 0;
835 PL_restartop = 0; 880 PL_restartop = 0;
836#if PERL_VERSION_ATLEAST (5,10,0) 881#if PERL_VERSION_ATLEAST (5,10,0)
837 PL_parser = 0; 882 PL_parser = 0;
838#endif 883#endif
884 PL_hints = 0;
839 885
840 /* recreate the die/warn hooks */ 886 /* recreate the die/warn hooks */
841 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 887 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
842 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 888 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
843 889
844 GvSV (PL_defgv) = newSV (0); 890 GvSV (PL_defgv) = newSV (0);
845 GvAV (PL_defgv) = coro->args; coro->args = 0; 891 GvAV (PL_defgv) = coro->args; coro->args = 0;
846 GvSV (PL_errgv) = newSV (0); 892 GvSV (PL_errgv) = newSV (0);
847 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 893 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
894 GvHV (PL_hintgv) = 0;
848 PL_rs = newSVsv (GvSV (irsgv)); 895 PL_rs = newSVsv (GvSV (irsgv));
849 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 896 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
850 897
851 { 898 {
852 dSP; 899 dSP;
853 UNOP myop; 900 UNOP myop;
854 901
855 Zero (&myop, 1, UNOP); 902 Zero (&myop, 1, UNOP);
856 myop.op_next = Nullop; 903 myop.op_next = Nullop;
904 myop.op_type = OP_ENTERSUB;
857 myop.op_flags = OPf_WANT_VOID; 905 myop.op_flags = OPf_WANT_VOID;
858 906
859 PUSHMARK (SP); 907 PUSHMARK (SP);
860 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 908 PUSHs ((SV *)coro->startcv);
861 PUTBACK; 909 PUTBACK;
862 PL_op = (OP *)&myop; 910 PL_op = (OP *)&myop;
863 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 911 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
864 SPAGAIN;
865 } 912 }
866 913
867 /* this newly created coroutine might be run on an existing cctx which most 914 /* this newly created coroutine might be run on an existing cctx which most
868 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 915 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
869 */ 916 */
870 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 917 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
871 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 918 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
872 919
873 coro_throw = coro->throw; 920 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
921 coro_setup_op.op_next = PL_op;
922 coro_setup_op.op_type = OP_ENTERSUB;
923 coro_setup_op.op_ppaddr = pp_slf;
924 /* no flags etc. required, as an init function won't be called */
925
926 PL_op = (OP *)&coro_setup_op;
927
928 /* copy throw, in case it was set before coro_setup */
929 CORO_THROW = coro->except;
874} 930}
875 931
876static void 932static void
877coro_destruct (pTHX_ struct coro *coro) 933coro_destruct (pTHX_ struct coro *coro)
878{ 934{
… …
897 SvREFCNT_dec (GvAV (PL_defgv)); 953 SvREFCNT_dec (GvAV (PL_defgv));
898 SvREFCNT_dec (GvSV (PL_errgv)); 954 SvREFCNT_dec (GvSV (PL_errgv));
899 SvREFCNT_dec (PL_defoutgv); 955 SvREFCNT_dec (PL_defoutgv);
900 SvREFCNT_dec (PL_rs); 956 SvREFCNT_dec (PL_rs);
901 SvREFCNT_dec (GvSV (irsgv)); 957 SvREFCNT_dec (GvSV (irsgv));
958 SvREFCNT_dec (GvHV (PL_hintgv));
902 959
903 SvREFCNT_dec (PL_diehook); 960 SvREFCNT_dec (PL_diehook);
904 SvREFCNT_dec (PL_warnhook); 961 SvREFCNT_dec (PL_warnhook);
905 962
906 SvREFCNT_dec (coro->saved_deffh); 963 SvREFCNT_dec (coro->saved_deffh);
907 SvREFCNT_dec (coro_throw); 964 SvREFCNT_dec (coro->rouse_cb);
965 SvREFCNT_dec (coro->invoke_cb);
966 SvREFCNT_dec (coro->invoke_av);
908 967
909 coro_destruct_stacks (aTHX); 968 coro_destruct_stacks (aTHX);
910} 969}
911 970
912INLINE void 971INLINE void
… …
922static int 981static int
923runops_trace (pTHX) 982runops_trace (pTHX)
924{ 983{
925 COP *oldcop = 0; 984 COP *oldcop = 0;
926 int oldcxix = -2; 985 int oldcxix = -2;
927 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
928 coro_cctx *cctx = coro->cctx;
929 986
930 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 987 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
931 { 988 {
932 PERL_ASYNC_CHECK (); 989 PERL_ASYNC_CHECK ();
933 990
934 if (cctx->flags & CC_TRACE_ALL) 991 if (cctx_current->flags & CC_TRACE_ALL)
935 { 992 {
936 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 993 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
937 { 994 {
938 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 995 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
939 SV **bot, **top; 996 SV **bot, **top;
940 AV *av = newAV (); /* return values */ 997 AV *av = newAV (); /* return values */
941 SV **cb; 998 SV **cb;
… …
978 1035
979 if (PL_curcop != &PL_compiling) 1036 if (PL_curcop != &PL_compiling)
980 { 1037 {
981 SV **cb; 1038 SV **cb;
982 1039
983 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1040 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
984 { 1041 {
985 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1042 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986 1043
987 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1044 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
988 { 1045 {
989 runops_proc_t old_runops = PL_runops;
990 dSP; 1046 dSP;
991 GV *gv = CvGV (cx->blk_sub.cv); 1047 GV *gv = CvGV (cx->blk_sub.cv);
992 SV *fullname = sv_2mortal (newSV (0)); 1048 SV *fullname = sv_2mortal (newSV (0));
993 1049
994 if (isGV (gv)) 1050 if (isGV (gv))
… …
999 SAVETMPS; 1055 SAVETMPS;
1000 EXTEND (SP, 3); 1056 EXTEND (SP, 3);
1001 PUSHMARK (SP); 1057 PUSHMARK (SP);
1002 PUSHs (&PL_sv_yes); 1058 PUSHs (&PL_sv_yes);
1003 PUSHs (fullname); 1059 PUSHs (fullname);
1004 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1060 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1005 PUTBACK; 1061 PUTBACK;
1006 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1062 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1007 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1063 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1008 SPAGAIN; 1064 SPAGAIN;
1009 FREETMPS; 1065 FREETMPS;
… …
1012 } 1068 }
1013 1069
1014 oldcxix = cxstack_ix; 1070 oldcxix = cxstack_ix;
1015 } 1071 }
1016 1072
1017 if (cctx->flags & CC_TRACE_LINE) 1073 if (cctx_current->flags & CC_TRACE_LINE)
1018 { 1074 {
1019 dSP; 1075 dSP;
1020 1076
1021 PL_runops = RUNOPS_DEFAULT; 1077 PL_runops = RUNOPS_DEFAULT;
1022 ENTER; 1078 ENTER;
… …
1041 1097
1042 TAINT_NOT; 1098 TAINT_NOT;
1043 return 0; 1099 return 0;
1044} 1100}
1045 1101
1102static struct CoroSLF cctx_ssl_frame;
1103
1046static void 1104static void
1047prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) 1105slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1048{ 1106{
1049 ta->prev = (struct coro *)cctx;
1050 ta->next = 0; 1107 ta->prev = 0;
1051} 1108}
1052 1109
1053/* inject a fake call to Coro::State::_cctx_init into the execution */ 1110static int
1054/* _cctx_init should be careful, as it could be called at almost any time */ 1111slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1055/* during execution of a perl program */ 1112{
1056/* also initialises PL_top_env */ 1113 *frame = cctx_ssl_frame;
1114
1115 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1116}
1117
1118/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1057static void NOINLINE 1119static void NOINLINE
1058cctx_prepare (pTHX_ coro_cctx *cctx) 1120cctx_prepare (pTHX)
1059{ 1121{
1060 dSP;
1061 UNOP myop;
1062
1063 PL_top_env = &PL_start_env; 1122 PL_top_env = &PL_start_env;
1064 1123
1065 if (cctx->flags & CC_TRACE) 1124 if (cctx_current->flags & CC_TRACE)
1066 PL_runops = runops_trace; 1125 PL_runops = runops_trace;
1067 1126
1068 Zero (&myop, 1, UNOP); 1127 /* we already must be executing an SLF op, there is no other valid way
1069 myop.op_next = PL_op; 1128 * that can lead to creation of a new cctx */
1070 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1129 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1130 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1071 1131
1072 PUSHMARK (SP); 1132 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1073 EXTEND (SP, 2); 1133 cctx_ssl_frame = slf_frame;
1074 PUSHs (sv_2mortal (newSViv ((IV)cctx))); 1134
1075 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1135 slf_frame.prepare = slf_prepare_set_stacklevel;
1076 PUTBACK; 1136 slf_frame.check = slf_check_set_stacklevel;
1077 PL_op = (OP *)&myop;
1078 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1079 SPAGAIN;
1080} 1137}
1081 1138
1082/* the tail of transfer: execute stuff we can only do after a transfer */ 1139/* the tail of transfer: execute stuff we can only do after a transfer */
1083INLINE void 1140INLINE void
1084transfer_tail (pTHX) 1141transfer_tail (pTHX)
… …
1103 /* normally we would need to skip the entersub here */ 1160 /* normally we would need to skip the entersub here */
1104 /* not doing so will re-execute it, which is exactly what we want */ 1161 /* not doing so will re-execute it, which is exactly what we want */
1105 /* PL_nop = PL_nop->op_next */ 1162 /* PL_nop = PL_nop->op_next */
1106 1163
1107 /* inject a fake subroutine call to cctx_init */ 1164 /* inject a fake subroutine call to cctx_init */
1108 cctx_prepare (aTHX_ (coro_cctx *)arg); 1165 cctx_prepare (aTHX);
1109 1166
1110 /* cctx_run is the alternative tail of transfer() */ 1167 /* cctx_run is the alternative tail of transfer() */
1111 transfer_tail (aTHX); 1168 transfer_tail (aTHX);
1112 1169
1113 /* somebody or something will hit me for both perl_run and PL_restartop */ 1170 /* somebody or something will hit me for both perl_run and PL_restartop */
1114 PL_restartop = PL_op; 1171 PL_restartop = PL_op;
1115 perl_run (PL_curinterp); 1172 perl_run (PL_curinterp);
1173 /*
1174 * Unfortunately, there is no way to get at the return values of the
1175 * coro body here, as perl_run destroys these
1176 */
1116 1177
1117 /* 1178 /*
1118 * If perl-run returns we assume exit() was being called or the coro 1179 * If perl-run returns we assume exit() was being called or the coro
1119 * fell off the end, which seems to be the only valid (non-bug) 1180 * fell off the end, which seems to be the only valid (non-bug)
1120 * reason for perl_run to return. We try to exit by jumping to the 1181 * reason for perl_run to return. We try to exit by jumping to the
1121 * bootstrap-time "top" top_env, as we cannot restore the "main" 1182 * bootstrap-time "top" top_env, as we cannot restore the "main"
1122 * coroutine as Coro has no such concept 1183 * coroutine as Coro has no such concept.
1184 * This actually isn't valid with the pthread backend, but OSes requiring
1185 * that backend are too broken to do it in a standards-compliant way.
1123 */ 1186 */
1124 PL_top_env = main_top_env; 1187 PL_top_env = main_top_env;
1125 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1188 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1126 } 1189 }
1127} 1190}
… …
1204cctx_destroy (coro_cctx *cctx) 1267cctx_destroy (coro_cctx *cctx)
1205{ 1268{
1206 if (!cctx) 1269 if (!cctx)
1207 return; 1270 return;
1208 1271
1272 assert (cctx != cctx_current);//D temporary
1273
1209 --cctx_count; 1274 --cctx_count;
1210 coro_destroy (&cctx->cctx); 1275 coro_destroy (&cctx->cctx);
1211 1276
1212 /* coro_transfer creates new, empty cctx's */ 1277 /* coro_transfer creates new, empty cctx's */
1213 if (cctx->sptr) 1278 if (cctx->sptr)
… …
1276 /* TODO: throwing up here is considered harmful */ 1341 /* TODO: throwing up here is considered harmful */
1277 1342
1278 if (expect_true (prev != next)) 1343 if (expect_true (prev != next))
1279 { 1344 {
1280 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1345 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1281 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1346 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1282 1347
1283 if (expect_false (next->flags & CF_RUNNING)) 1348 if (expect_false (next->flags & CF_RUNNING))
1284 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); 1349 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1285 1350
1286 if (expect_false (next->flags & CF_DESTROYED)) 1351 if (expect_false (next->flags & CF_DESTROYED))
… …
1298transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1363transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1299{ 1364{
1300 dSTACKLEVEL; 1365 dSTACKLEVEL;
1301 1366
1302 /* sometimes transfer is only called to set idle_sp */ 1367 /* sometimes transfer is only called to set idle_sp */
1303 if (expect_false (!next)) 1368 if (expect_false (!prev))
1304 { 1369 {
1305 ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; 1370 cctx_current->idle_sp = STACKLEVEL;
1306 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1371 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1307 } 1372 }
1308 else if (expect_true (prev != next)) 1373 else if (expect_true (prev != next))
1309 { 1374 {
1310 coro_cctx *prev__cctx; 1375 coro_cctx *cctx_prev;
1311 1376
1312 if (expect_false (prev->flags & CF_NEW)) 1377 if (expect_false (prev->flags & CF_NEW))
1313 { 1378 {
1314 /* create a new empty/source context */ 1379 /* create a new empty/source context */
1315 prev->cctx = cctx_new_empty ();
1316 prev->flags &= ~CF_NEW; 1380 prev->flags &= ~CF_NEW;
1317 prev->flags |= CF_RUNNING; 1381 prev->flags |= CF_RUNNING;
1318 } 1382 }
1319 1383
1320 prev->flags &= ~CF_RUNNING; 1384 prev->flags &= ~CF_RUNNING;
… …
1331 coro_setup (aTHX_ next); 1395 coro_setup (aTHX_ next);
1332 } 1396 }
1333 else 1397 else
1334 load_perl (aTHX_ next); 1398 load_perl (aTHX_ next);
1335 1399
1336 prev__cctx = prev->cctx; 1400 assert (!prev->cctx);//D temporary
1337 1401
1338 /* possibly untie and reuse the cctx */ 1402 /* possibly untie and reuse the cctx */
1339 if (expect_true ( 1403 if (expect_true (
1340 prev__cctx->idle_sp == (void *)stacklevel 1404 cctx_current->idle_sp == STACKLEVEL
1341 && !(prev__cctx->flags & CC_TRACE) 1405 && !(cctx_current->flags & CC_TRACE)
1342 && !force_cctx 1406 && !force_cctx
1343 )) 1407 ))
1344 { 1408 {
1345 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1409 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1346 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1410 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1347 1411
1348 prev->cctx = 0;
1349
1350 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1412 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1351 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1413 /* without this the next cctx_get might destroy the running cctx while still in use */
1352 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1414 if (expect_false (CCTX_EXPIRED (cctx_current)))
1353 if (!next->cctx) 1415 if (expect_true (!next->cctx))
1354 next->cctx = cctx_get (aTHX); 1416 next->cctx = cctx_get (aTHX);
1355 1417
1356 cctx_put (prev__cctx); 1418 cctx_put (cctx_current);
1357 } 1419 }
1420 else
1421 prev->cctx = cctx_current;
1358 1422
1359 ++next->usecount; 1423 ++next->usecount;
1360 1424
1361 if (expect_true (!next->cctx)) 1425 cctx_prev = cctx_current;
1362 next->cctx = cctx_get (aTHX); 1426 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1363 1427
1364 if (expect_false (prev__cctx != next->cctx)) 1428 next->cctx = 0;
1429
1430 if (expect_false (cctx_prev != cctx_current))
1365 { 1431 {
1366 prev__cctx->top_env = PL_top_env; 1432 cctx_prev->top_env = PL_top_env;
1367 PL_top_env = next->cctx->top_env; 1433 PL_top_env = cctx_current->top_env;
1368 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1434 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1369 } 1435 }
1370 1436
1371 transfer_tail (aTHX); 1437 transfer_tail (aTHX);
1372 } 1438 }
1373} 1439}
… …
1412 1478
1413 coro->slot = 0; 1479 coro->slot = 0;
1414 } 1480 }
1415 1481
1416 cctx_destroy (coro->cctx); 1482 cctx_destroy (coro->cctx);
1483 SvREFCNT_dec (coro->startcv);
1417 SvREFCNT_dec (coro->args); 1484 SvREFCNT_dec (coro->args);
1485 SvREFCNT_dec (CORO_THROW);
1418 1486
1419 if (coro->next) coro->next->prev = coro->prev; 1487 if (coro->next) coro->next->prev = coro->prev;
1420 if (coro->prev) coro->prev->next = coro->next; 1488 if (coro->prev) coro->prev->next = coro->next;
1421 if (coro == coro_first) coro_first = coro->next; 1489 if (coro == coro_first) coro_first = coro->next;
1422 1490
… …
1476 1544
1477 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1545 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1478 TRANSFER (ta, 1); 1546 TRANSFER (ta, 1);
1479} 1547}
1480 1548
1549/*****************************************************************************/
1550/* gensub: simple closure generation utility */
1551
1552#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1553
1554/* create a closure from XS, returns a code reference */
1555/* the arg can be accessed via GENSUB_ARG from the callback */
1556/* the callback must use dXSARGS/XSRETURN */
1557static SV *
1558gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1559{
1560 CV *cv = (CV *)newSV (0);
1561
1562 sv_upgrade ((SV *)cv, SVt_PVCV);
1563
1564 CvANON_on (cv);
1565 CvISXSUB_on (cv);
1566 CvXSUB (cv) = xsub;
1567 GENSUB_ARG = arg;
1568
1569 return newRV_noinc ((SV *)cv);
1570}
1571
1481/** Coro ********************************************************************/ 1572/** Coro ********************************************************************/
1482 1573
1483INLINE void 1574INLINE void
1484coro_enq (pTHX_ struct coro *coro) 1575coro_enq (pTHX_ struct coro *coro)
1485{ 1576{
… …
1503{ 1594{
1504 struct coro *coro; 1595 struct coro *coro;
1505 SV *sv_hook; 1596 SV *sv_hook;
1506 void (*xs_hook)(void); 1597 void (*xs_hook)(void);
1507 1598
1508 if (SvROK (coro_sv))
1509 coro_sv = SvRV (coro_sv);
1510
1511 coro = SvSTATE (coro_sv); 1599 coro = SvSTATE (coro_sv);
1512 1600
1513 if (coro->flags & CF_READY) 1601 if (coro->flags & CF_READY)
1514 return 0; 1602 return 0;
1515 1603
… …
1528 ENTER; 1616 ENTER;
1529 SAVETMPS; 1617 SAVETMPS;
1530 1618
1531 PUSHMARK (SP); 1619 PUSHMARK (SP);
1532 PUTBACK; 1620 PUTBACK;
1533 call_sv (sv_hook, G_DISCARD); 1621 call_sv (sv_hook, G_VOID | G_DISCARD);
1534 SPAGAIN;
1535 1622
1536 FREETMPS; 1623 FREETMPS;
1537 LEAVE; 1624 LEAVE;
1538 } 1625 }
1539 1626
… …
1547api_is_ready (pTHX_ SV *coro_sv) 1634api_is_ready (pTHX_ SV *coro_sv)
1548{ 1635{
1549 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1636 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1550} 1637}
1551 1638
1639/* expects to own a reference to next->hv */
1552INLINE void 1640INLINE void
1553prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1641prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1554{ 1642{
1555 SV *prev_sv, *next_sv;
1556
1557 for (;;)
1558 {
1559 next_sv = coro_deq (aTHX);
1560
1561 /* nothing to schedule: call the idle handler */
1562 if (expect_false (!next_sv))
1563 {
1564 dSP;
1565
1566 ENTER;
1567 SAVETMPS;
1568
1569 PUSHMARK (SP);
1570 PUTBACK;
1571 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1572 SPAGAIN;
1573
1574 FREETMPS;
1575 LEAVE;
1576 continue;
1577 }
1578
1579 ta->next = SvSTATE_hv (next_sv);
1580
1581 /* cannot transfer to destroyed coros, skip and look for next */
1582 if (expect_false (ta->next->flags & CF_DESTROYED))
1583 {
1584 SvREFCNT_dec (next_sv);
1585 /* coro_nready has already been taken care of by destroy */
1586 continue;
1587 }
1588
1589 --coro_nready;
1590 break;
1591 }
1592
1593 /* free this only after the transfer */
1594 prev_sv = SvRV (coro_current); 1643 SV *prev_sv = SvRV (coro_current);
1644
1595 ta->prev = SvSTATE_hv (prev_sv); 1645 ta->prev = SvSTATE_hv (prev_sv);
1646 ta->next = next;
1647
1596 TRANSFER_CHECK (*ta); 1648 TRANSFER_CHECK (*ta);
1597 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1649
1598 ta->next->flags &= ~CF_READY;
1599 SvRV_set (coro_current, next_sv); 1650 SvRV_set (coro_current, (SV *)next->hv);
1600 1651
1601 free_coro_mortal (aTHX); 1652 free_coro_mortal (aTHX);
1602 coro_mortal = prev_sv; 1653 coro_mortal = prev_sv;
1603} 1654}
1604 1655
1656static void
1657prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1658{
1659 for (;;)
1660 {
1661 SV *next_sv = coro_deq (aTHX);
1662
1663 if (expect_true (next_sv))
1664 {
1665 struct coro *next = SvSTATE_hv (next_sv);
1666
1667 /* cannot transfer to destroyed coros, skip and look for next */
1668 if (expect_false (next->flags & CF_DESTROYED))
1669 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
1670 else
1671 {
1672 next->flags &= ~CF_READY;
1673 --coro_nready;
1674
1675 prepare_schedule_to (aTHX_ ta, next);
1676 break;
1677 }
1678 }
1679 else
1680 {
1681 /* nothing to schedule: call the idle handler */
1682 if (SvROK (sv_idle)
1683 && SvOBJECT (SvRV (sv_idle)))
1684 {
1685 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1686 api_ready (aTHX_ SvRV (sv_idle));
1687 --coro_nready;
1688 }
1689 else
1690 {
1691 dSP;
1692
1693 ENTER;
1694 SAVETMPS;
1695
1696 PUSHMARK (SP);
1697 PUTBACK;
1698 call_sv (sv_idle, G_VOID | G_DISCARD);
1699
1700 FREETMPS;
1701 LEAVE;
1702 }
1703 }
1704 }
1705}
1706
1605INLINE void 1707INLINE void
1606prepare_cede (pTHX_ struct coro_transfer_args *ta) 1708prepare_cede (pTHX_ struct coro_transfer_args *ta)
1607{ 1709{
1608 api_ready (aTHX_ coro_current); 1710 api_ready (aTHX_ coro_current);
1609 prepare_schedule (aTHX_ ta); 1711 prepare_schedule (aTHX_ ta);
… …
1628{ 1730{
1629 struct coro_transfer_args ta; 1731 struct coro_transfer_args ta;
1630 1732
1631 prepare_schedule (aTHX_ &ta); 1733 prepare_schedule (aTHX_ &ta);
1632 TRANSFER (ta, 1); 1734 TRANSFER (ta, 1);
1735}
1736
1737static void
1738api_schedule_to (pTHX_ SV *coro_sv)
1739{
1740 struct coro_transfer_args ta;
1741 struct coro *next = SvSTATE (coro_sv);
1742
1743 SvREFCNT_inc_NN (coro_sv);
1744 prepare_schedule_to (aTHX_ &ta, next);
1633} 1745}
1634 1746
1635static int 1747static int
1636api_cede (pTHX) 1748api_cede (pTHX)
1637{ 1749{
… …
1666static void 1778static void
1667api_trace (pTHX_ SV *coro_sv, int flags) 1779api_trace (pTHX_ SV *coro_sv, int flags)
1668{ 1780{
1669 struct coro *coro = SvSTATE (coro_sv); 1781 struct coro *coro = SvSTATE (coro_sv);
1670 1782
1783 if (coro->flags & CF_RUNNING)
1784 croak ("cannot enable tracing on a running coroutine, caught");
1785
1671 if (flags & CC_TRACE) 1786 if (flags & CC_TRACE)
1672 { 1787 {
1673 if (!coro->cctx) 1788 if (!coro->cctx)
1674 coro->cctx = cctx_new_run (); 1789 coro->cctx = cctx_new_run ();
1675 else if (!(coro->cctx->flags & CC_TRACE)) 1790 else if (!(coro->cctx->flags & CC_TRACE))
1676 croak ("cannot enable tracing on coroutine with custom stack,"); 1791 croak ("cannot enable tracing on coroutine with custom stack, caught");
1677 1792
1678 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1793 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1679 } 1794 }
1680 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1795 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1681 { 1796 {
… …
1684 if (coro->flags & CF_RUNNING) 1799 if (coro->flags & CF_RUNNING)
1685 PL_runops = RUNOPS_DEFAULT; 1800 PL_runops = RUNOPS_DEFAULT;
1686 else 1801 else
1687 coro->slot->runops = RUNOPS_DEFAULT; 1802 coro->slot->runops = RUNOPS_DEFAULT;
1688 } 1803 }
1804}
1805
1806static void
1807coro_call_on_destroy (pTHX_ struct coro *coro)
1808{
1809 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1810 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1811
1812 if (on_destroyp)
1813 {
1814 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1815
1816 while (AvFILLp (on_destroy) >= 0)
1817 {
1818 dSP; /* don't disturb outer sp */
1819 SV *cb = av_pop (on_destroy);
1820
1821 PUSHMARK (SP);
1822
1823 if (statusp)
1824 {
1825 int i;
1826 AV *status = (AV *)SvRV (*statusp);
1827 EXTEND (SP, AvFILLp (status) + 1);
1828
1829 for (i = 0; i <= AvFILLp (status); ++i)
1830 PUSHs (AvARRAY (status)[i]);
1831 }
1832
1833 PUTBACK;
1834 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1835 }
1836 }
1837}
1838
1839static void
1840slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1841{
1842 int i;
1843 HV *hv = (HV *)SvRV (coro_current);
1844 AV *av = newAV ();
1845
1846 av_extend (av, items - 1);
1847 for (i = 0; i < items; ++i)
1848 av_push (av, SvREFCNT_inc_NN (arg [i]));
1849
1850 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1851
1852 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1853 api_ready (aTHX_ sv_manager);
1854
1855 frame->prepare = prepare_schedule;
1856 frame->check = slf_check_repeat;
1857}
1858
1859/*****************************************************************************/
1860/* async pool handler */
1861
1862static int
1863slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
1864{
1865 HV *hv = (HV *)SvRV (coro_current);
1866 struct coro *coro = (struct coro *)frame->data;
1867
1868 if (!coro->invoke_cb)
1869 return 1; /* loop till we have invoke */
1870 else
1871 {
1872 hv_store (hv, "desc", sizeof ("desc") - 1,
1873 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1874
1875 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1876
1877 {
1878 dSP;
1879 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1880 PUTBACK;
1881 }
1882
1883 SvREFCNT_dec (GvAV (PL_defgv));
1884 GvAV (PL_defgv) = coro->invoke_av;
1885 coro->invoke_av = 0;
1886
1887 return 0;
1888 }
1889}
1890
1891static void
1892slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1893{
1894 HV *hv = (HV *)SvRV (coro_current);
1895 struct coro *coro = SvSTATE_hv ((SV *)hv);
1896
1897 if (expect_true (coro->saved_deffh))
1898 {
1899 /* subsequent iteration */
1900 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1901 coro->saved_deffh = 0;
1902
1903 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1904 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1905 {
1906 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
1907 coro->invoke_av = newAV ();
1908
1909 frame->prepare = prepare_nop;
1910 }
1911 else
1912 {
1913 av_clear (GvAV (PL_defgv));
1914 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
1915
1916 coro->prio = 0;
1917
1918 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1919 api_trace (aTHX_ coro_current, 0);
1920
1921 frame->prepare = prepare_schedule;
1922 av_push (av_async_pool, SvREFCNT_inc (hv));
1923 }
1924 }
1925 else
1926 {
1927 /* first iteration, simply fall through */
1928 frame->prepare = prepare_nop;
1929 }
1930
1931 frame->check = slf_check_pool_handler;
1932 frame->data = (void *)coro;
1933}
1934
1935/*****************************************************************************/
1936/* rouse callback */
1937
1938#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1939
1940static void
1941coro_rouse_callback (pTHX_ CV *cv)
1942{
1943 dXSARGS;
1944 SV *data = (SV *)GENSUB_ARG;
1945
1946 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1947 {
1948 /* first call, set args */
1949 AV *av = newAV ();
1950 SV *coro = SvRV (data);
1951
1952 SvRV_set (data, (SV *)av);
1953 api_ready (aTHX_ coro);
1954 SvREFCNT_dec (coro);
1955
1956 /* better take a full copy of the arguments */
1957 while (items--)
1958 av_store (av, items, newSVsv (ST (items)));
1959 }
1960
1961 XSRETURN_EMPTY;
1962}
1963
1964static int
1965slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1966{
1967 SV *data = (SV *)frame->data;
1968
1969 if (CORO_THROW)
1970 return 0;
1971
1972 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1973 return 1;
1974
1975 /* now push all results on the stack */
1976 {
1977 dSP;
1978 AV *av = (AV *)SvRV (data);
1979 int i;
1980
1981 EXTEND (SP, AvFILLp (av) + 1);
1982 for (i = 0; i <= AvFILLp (av); ++i)
1983 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1984
1985 /* we have stolen the elements, so ste length to zero and free */
1986 AvFILLp (av) = -1;
1987 av_undef (av);
1988
1989 PUTBACK;
1990 }
1991
1992 return 0;
1993}
1994
1995static void
1996slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1997{
1998 SV *cb;
1999
2000 if (items)
2001 cb = arg [0];
2002 else
2003 {
2004 struct coro *coro = SvSTATE_current;
2005
2006 if (!coro->rouse_cb)
2007 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2008
2009 cb = sv_2mortal (coro->rouse_cb);
2010 coro->rouse_cb = 0;
2011 }
2012
2013 if (!SvROK (cb)
2014 || SvTYPE (SvRV (cb)) != SVt_PVCV
2015 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2016 croak ("Coro::rouse_wait called with illegal callback argument,");
2017
2018 {
2019 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
2020 SV *data = (SV *)GENSUB_ARG;
2021
2022 frame->data = (void *)data;
2023 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2024 frame->check = slf_check_rouse_wait;
2025 }
2026}
2027
2028static SV *
2029coro_new_rouse_cb (pTHX)
2030{
2031 HV *hv = (HV *)SvRV (coro_current);
2032 struct coro *coro = SvSTATE_hv (hv);
2033 SV *data = newRV_inc ((SV *)hv);
2034 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
2035
2036 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2037 SvREFCNT_dec (data); /* magicext increases the refcount */
2038
2039 SvREFCNT_dec (coro->rouse_cb);
2040 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2041
2042 return cb;
1689} 2043}
1690 2044
1691/*****************************************************************************/ 2045/*****************************************************************************/
1692/* schedule-like-function opcode (SLF) */ 2046/* schedule-like-function opcode (SLF) */
1693 2047
… …
1717 2071
1718 RETURNOP (slf_restore.op_first); 2072 RETURNOP (slf_restore.op_first);
1719} 2073}
1720 2074
1721static void 2075static void
1722slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1723{
1724 prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1725}
1726
1727static void
1728slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1729{
1730 assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1731
1732 frame->prepare = slf_prepare_set_stacklevel;
1733 frame->check = slf_check_nop;
1734 frame->data = (void *)SvIV (arg [0]);
1735}
1736
1737static void
1738slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) 2076slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1739{ 2077{
1740 SV **arg = (SV **)slf_frame.data; 2078 SV **arg = (SV **)slf_frame.data;
1741 2079
1742 prepare_transfer (aTHX_ ta, arg [0], arg [1]); 2080 prepare_transfer (aTHX_ ta, arg [0], arg [1]);
… …
1759 frame->prepare = prepare_schedule; 2097 frame->prepare = prepare_schedule;
1760 frame->check = slf_check_nop; 2098 frame->check = slf_check_nop;
1761} 2099}
1762 2100
1763static void 2101static void
2102slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2103{
2104 struct coro *next = (struct coro *)slf_frame.data;
2105
2106 SvREFCNT_inc_NN (next->hv);
2107 prepare_schedule_to (aTHX_ ta, next);
2108}
2109
2110static void
2111slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2112{
2113 if (!items)
2114 croak ("Coro::schedule_to expects a coroutine argument, caught");
2115
2116 frame->data = (void *)SvSTATE (arg [0]);
2117 frame->prepare = slf_prepare_schedule_to;
2118 frame->check = slf_check_nop;
2119}
2120
2121static void
2122slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2123{
2124 api_ready (aTHX_ SvRV (coro_current));
2125
2126 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2127}
2128
2129static void
1764slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2130slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1765{ 2131{
1766 frame->prepare = prepare_cede; 2132 frame->prepare = prepare_cede;
1767 frame->check = slf_check_nop; 2133 frame->check = slf_check_nop;
1768} 2134}
… …
1771slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2137slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1772{ 2138{
1773 frame->prepare = prepare_cede_notself; 2139 frame->prepare = prepare_cede_notself;
1774 frame->check = slf_check_nop; 2140 frame->check = slf_check_nop;
1775} 2141}
1776
1777/* we hijack an hopefully unused CV flag for our purposes */
1778#define CVf_SLF 0x4000
1779 2142
1780/* 2143/*
1781 * these not obviously related functions are all rolled into one 2144 * these not obviously related functions are all rolled into one
1782 * function to increase chances that they all will call transfer with the same 2145 * function to increase chances that they all will call transfer with the same
1783 * stack offset 2146 * stack offset
… …
1839 } 2202 }
1840 while (slf_frame.check (aTHX_ &slf_frame)); 2203 while (slf_frame.check (aTHX_ &slf_frame));
1841 2204
1842 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2205 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843 2206
1844 /* return value handling - mostly like entersub */
1845 {
1846 dSP;
1847 SV **bot = PL_stack_base + checkmark;
1848 int gimme = GIMME_V;
1849
1850 /* make sure we put something on the stack in scalar context */
1851 if (gimme == G_SCALAR)
1852 {
1853 if (sp == bot)
1854 XPUSHs (&PL_sv_undef);
1855
1856 SP = bot + 1;
1857 }
1858
1859 PUTBACK;
1860 }
1861
1862 /* exception handling */ 2207 /* exception handling */
1863 if (expect_false (coro_throw)) 2208 if (expect_false (CORO_THROW))
1864 { 2209 {
1865 SV *exception = sv_2mortal (coro_throw); 2210 SV *exception = sv_2mortal (CORO_THROW);
1866 2211
1867 coro_throw = 0; 2212 CORO_THROW = 0;
1868 sv_setsv (ERRSV, exception); 2213 sv_setsv (ERRSV, exception);
1869 croak (0); 2214 croak (0);
2215 }
2216
2217 /* return value handling - mostly like entersub */
2218 /* make sure we put something on the stack in scalar context */
2219 if (GIMME_V == G_SCALAR)
2220 {
2221 dSP;
2222 SV **bot = PL_stack_base + checkmark;
2223
2224 if (sp == bot) /* too few, push undef */
2225 bot [1] = &PL_sv_undef;
2226 else if (sp != bot + 1) /* too many, take last one */
2227 bot [1] = *sp;
2228
2229 SP = bot + 1;
2230
2231 PUTBACK;
1870 } 2232 }
1871 2233
1872 return NORMAL; 2234 return NORMAL;
1873} 2235}
1874 2236
… …
1915 } 2277 }
1916 else 2278 else
1917 slf_argc = 0; 2279 slf_argc = 0;
1918 2280
1919 PL_op->op_ppaddr = pp_slf; 2281 PL_op->op_ppaddr = pp_slf;
1920 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2282 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1921 2283
1922 PL_op = (OP *)&slf_restore; 2284 PL_op = (OP *)&slf_restore;
1923} 2285}
1924 2286
1925/*****************************************************************************/ 2287/*****************************************************************************/
… …
1996 PerlIOBuf_get_cnt, 2358 PerlIOBuf_get_cnt,
1997 PerlIOBuf_set_ptrcnt, 2359 PerlIOBuf_set_ptrcnt,
1998}; 2360};
1999 2361
2000/*****************************************************************************/ 2362/*****************************************************************************/
2363/* Coro::Semaphore & Coro::Signal */
2364
2365static SV *
2366coro_waitarray_new (pTHX_ int count)
2367{
2368 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2369 AV *av = newAV ();
2370 SV **ary;
2371
2372 /* unfortunately, building manually saves memory */
2373 Newx (ary, 2, SV *);
2374 AvALLOC (av) = ary;
2375 /*AvARRAY (av) = ary;*/
2376 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
2377 AvMAX (av) = 1;
2378 AvFILLp (av) = 0;
2379 ary [0] = newSViv (count);
2380
2381 return newRV_noinc ((SV *)av);
2382}
2383
2001/* Coro::Semaphore */ 2384/* semaphore */
2002 2385
2003static void 2386static void
2004coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2387coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2005{ 2388{
2006 SV *count_sv = AvARRAY (av)[0]; 2389 SV *count_sv = AvARRAY (av)[0];
… …
2018 AvARRAY (av)[0] = AvARRAY (av)[1]; 2401 AvARRAY (av)[0] = AvARRAY (av)[1];
2019 AvARRAY (av)[1] = count_sv; 2402 AvARRAY (av)[1] = count_sv;
2020 cb = av_shift (av); 2403 cb = av_shift (av);
2021 2404
2022 if (SvOBJECT (cb)) 2405 if (SvOBJECT (cb))
2406 {
2023 api_ready (aTHX_ cb); 2407 api_ready (aTHX_ cb);
2024 else 2408 --count;
2025 croak ("callbacks not yet supported"); 2409 }
2410 else if (SvTYPE (cb) == SVt_PVCV)
2411 {
2412 dSP;
2413 PUSHMARK (SP);
2414 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2415 PUTBACK;
2416 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2417 }
2026 2418
2027 SvREFCNT_dec (cb); 2419 SvREFCNT_dec (cb);
2028
2029 --count;
2030 } 2420 }
2031} 2421}
2032 2422
2033static void 2423static void
2034coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2424coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2036 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2426 /* call $sem->adjust (0) to possibly wake up some other waiters */
2037 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2427 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2038} 2428}
2039 2429
2040static int 2430static int
2041slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2431slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2042{ 2432{
2043 AV *av = (AV *)frame->data; 2433 AV *av = (AV *)frame->data;
2044 SV *count_sv = AvARRAY (av)[0]; 2434 SV *count_sv = AvARRAY (av)[0];
2045 2435
2436 /* if we are about to throw, don't actually acquire the lock, just throw */
2437 if (CORO_THROW)
2438 return 0;
2046 if (SvIVX (count_sv) > 0) 2439 else if (SvIVX (count_sv) > 0)
2047 { 2440 {
2048 SvSTATE_current->on_destroy = 0; 2441 SvSTATE_current->on_destroy = 0;
2442
2443 if (acquire)
2049 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2444 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2445 else
2446 coro_semaphore_adjust (aTHX_ av, 0);
2447
2050 return 0; 2448 return 0;
2051 } 2449 }
2052 else 2450 else
2053 { 2451 {
2054 int i; 2452 int i;
… …
2063 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2461 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2064 return 1; 2462 return 1;
2065 } 2463 }
2066} 2464}
2067 2465
2068static void 2466static int
2467slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2468{
2469 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2470}
2471
2472static int
2473slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2474{
2475 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2476}
2477
2478static void
2069slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2479slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2070{ 2480{
2071 AV *av = (AV *)SvRV (arg [0]); 2481 AV *av = (AV *)SvRV (arg [0]);
2072 2482
2073 if (SvIVX (AvARRAY (av)[0]) > 0) 2483 if (SvIVX (AvARRAY (av)[0]) > 0)
2074 { 2484 {
2075 frame->data = (void *)av; 2485 frame->data = (void *)av;
2076 frame->prepare = prepare_nop; 2486 frame->prepare = prepare_nop;
2077 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2078 } 2487 }
2079 else 2488 else
2080 { 2489 {
2081 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2490 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2082 2491
2083 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2492 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2084 frame->prepare = prepare_schedule; 2493 frame->prepare = prepare_schedule;
2085 2494
2086 /* to avoid race conditions when a woken-up coro gets terminated */ 2495 /* to avoid race conditions when a woken-up coro gets terminated */
2087 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2496 /* we arrange for a temporary on_destroy that calls adjust (0) */
2088 assert (!SvSTATE_current->on_destroy);//D
2089 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2497 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090 } 2498 }
2499}
2091 2500
2501static void
2502slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2503{
2504 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092 frame->check = slf_check_semaphore_down; 2505 frame->check = slf_check_semaphore_down;
2093
2094} 2506}
2095 2507
2096/*****************************************************************************/ 2508static void
2097/* gensub: simple closure generation utility */ 2509slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
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 */
2104static SV *
2105gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2106{ 2510{
2107 CV *cv = (CV *)newSV (0); 2511 if (items >= 2)
2512 {
2513 /* callback form */
2514 AV *av = (AV *)SvRV (arg [0]);
2515 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108 2516
2109 sv_upgrade ((SV *)cv, SVt_PVCV); 2517 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110 2518
2111 CvANON_on (cv); 2519 if (SvIVX (AvARRAY (av)[0]) > 0)
2112 CvISXSUB_on (cv); 2520 coro_semaphore_adjust (aTHX_ av, 0);
2113 CvXSUB (cv) = xsub;
2114 GENSUB_ARG = arg;
2115 2521
2116 return newRV_noinc ((SV *)cv); 2522 frame->prepare = prepare_nop;
2523 frame->check = slf_check_nop;
2524 }
2525 else
2526 {
2527 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2528 frame->check = slf_check_semaphore_wait;
2529 }
2530}
2531
2532/* signal */
2533
2534static void
2535coro_signal_wake (pTHX_ AV *av, int count)
2536{
2537 SvIVX (AvARRAY (av)[0]) = 0;
2538
2539 /* now signal count waiters */
2540 while (count > 0 && AvFILLp (av) > 0)
2541 {
2542 SV *cb;
2543
2544 /* swap first two elements so we can shift a waiter */
2545 cb = AvARRAY (av)[0];
2546 AvARRAY (av)[0] = AvARRAY (av)[1];
2547 AvARRAY (av)[1] = cb;
2548
2549 cb = av_shift (av);
2550
2551 api_ready (aTHX_ cb);
2552 sv_setiv (cb, 0); /* signal waiter */
2553 SvREFCNT_dec (cb);
2554
2555 --count;
2556 }
2557}
2558
2559static int
2560slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2561{
2562 /* if we are about to throw, also stop waiting */
2563 return SvROK ((SV *)frame->data) && !CORO_THROW;
2564}
2565
2566static void
2567slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2568{
2569 AV *av = (AV *)SvRV (arg [0]);
2570
2571 if (SvIVX (AvARRAY (av)[0]))
2572 {
2573 SvIVX (AvARRAY (av)[0]) = 0;
2574 frame->prepare = prepare_nop;
2575 frame->check = slf_check_nop;
2576 }
2577 else
2578 {
2579 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
2580
2581 av_push (av, waiter);
2582
2583 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2584 frame->prepare = prepare_schedule;
2585 frame->check = slf_check_signal_wait;
2586 }
2117} 2587}
2118 2588
2119/*****************************************************************************/ 2589/*****************************************************************************/
2120/* Coro::AIO */ 2590/* Coro::AIO */
2121 2591
… …
2136 dXSARGS; 2606 dXSARGS;
2137 AV *state = (AV *)GENSUB_ARG; 2607 AV *state = (AV *)GENSUB_ARG;
2138 SV *coro = av_pop (state); 2608 SV *coro = av_pop (state);
2139 SV *data_sv = newSV (sizeof (struct io_state)); 2609 SV *data_sv = newSV (sizeof (struct io_state));
2140 2610
2141 av_extend (state, items); 2611 av_extend (state, items - 1);
2142 2612
2143 sv_upgrade (data_sv, SVt_PV); 2613 sv_upgrade (data_sv, SVt_PV);
2144 SvCUR_set (data_sv, sizeof (struct io_state)); 2614 SvCUR_set (data_sv, sizeof (struct io_state));
2145 SvPOK_only (data_sv); 2615 SvPOK_only (data_sv);
2146 2616
… …
2171static int 2641static int
2172slf_check_aio_req (pTHX_ struct CoroSLF *frame) 2642slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2173{ 2643{
2174 AV *state = (AV *)frame->data; 2644 AV *state = (AV *)frame->data;
2175 2645
2646 /* if we are about to throw, return early */
2647 /* this does not cancel the aio request, but at least */
2648 /* it quickly returns */
2649 if (CORO_THROW)
2650 return 0;
2651
2176 /* one element that is an RV? repeat! */ 2652 /* one element that is an RV? repeat! */
2177 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2653 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2178 return 1; 2654 return 1;
2179 2655
2180 /* restore status */ 2656 /* restore status */
… …
2275 XSRETURN_EMPTY; 2751 XSRETURN_EMPTY;
2276} 2752}
2277 2753
2278/*****************************************************************************/ 2754/*****************************************************************************/
2279 2755
2756#if CORO_CLONE
2757# include "clone.c"
2758#endif
2759
2280MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2760MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2281 2761
2282PROTOTYPES: DISABLE 2762PROTOTYPES: DISABLE
2283 2763
2284BOOT: 2764BOOT:
… …
2288 coro_thx = PERL_GET_CONTEXT; 2768 coro_thx = PERL_GET_CONTEXT;
2289# endif 2769# endif
2290#endif 2770#endif
2291 BOOT_PAGESIZE; 2771 BOOT_PAGESIZE;
2292 2772
2773 cctx_current = cctx_new_empty ();
2774
2293 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 2775 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2294 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 2776 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2295 2777
2296 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 2778 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2297 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 2779 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2316 2798
2317 { 2799 {
2318 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 2800 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2319 2801
2320 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 2802 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2321 hv_store_ent (PL_custom_op_names, slf, 2803 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2322 newSVpv ("coro_slf", 0), 0);
2323 2804
2324 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 2805 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2325 hv_store_ent (PL_custom_op_descs, slf, 2806 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2326 newSVpv ("coro schedule like function", 0), 0);
2327 } 2807 }
2328 2808
2329 coroapi.ver = CORO_API_VERSION; 2809 coroapi.ver = CORO_API_VERSION;
2330 coroapi.rev = CORO_API_REVISION; 2810 coroapi.rev = CORO_API_REVISION;
2331 2811
… …
2350 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2830 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2351} 2831}
2352 2832
2353SV * 2833SV *
2354new (char *klass, ...) 2834new (char *klass, ...)
2835 ALIAS:
2836 Coro::new = 1
2355 CODE: 2837 CODE:
2356{ 2838{
2357 struct coro *coro; 2839 struct coro *coro;
2358 MAGIC *mg; 2840 MAGIC *mg;
2359 HV *hv; 2841 HV *hv;
2842 CV *cb;
2360 int i; 2843 int i;
2844
2845 if (items > 1)
2846 {
2847 cb = coro_sv_2cv (aTHX_ ST (1));
2848
2849 if (!ix)
2850 {
2851 if (CvISXSUB (cb))
2852 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2853
2854 if (!CvROOT (cb))
2855 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2856 }
2857 }
2361 2858
2362 Newz (0, coro, 1, struct coro); 2859 Newz (0, coro, 1, struct coro);
2363 coro->args = newAV (); 2860 coro->args = newAV ();
2364 coro->flags = CF_NEW; 2861 coro->flags = CF_NEW;
2365 2862
… …
2370 coro->hv = hv = newHV (); 2867 coro->hv = hv = newHV ();
2371 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); 2868 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2372 mg->mg_flags |= MGf_DUP; 2869 mg->mg_flags |= MGf_DUP;
2373 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2870 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2374 2871
2872 if (items > 1)
2873 {
2375 av_extend (coro->args, items - 1); 2874 av_extend (coro->args, items - 1 + ix - 1);
2875
2876 if (ix)
2877 {
2878 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2879 cb = cv_coro_run;
2880 }
2881
2882 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2883
2376 for (i = 1; i < items; i++) 2884 for (i = 2; i < items; i++)
2377 av_push (coro->args, newSVsv (ST (i))); 2885 av_push (coro->args, newSVsv (ST (i)));
2886 }
2378} 2887}
2379 OUTPUT: 2888 OUTPUT:
2380 RETVAL 2889 RETVAL
2381
2382void
2383_set_stacklevel (...)
2384 CODE:
2385 CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2386 2890
2387void 2891void
2388transfer (...) 2892transfer (...)
2389 PROTOTYPE: $$ 2893 PROTOTYPE: $$
2390 CODE: 2894 CODE:
… …
2400void 2904void
2401_exit (int code) 2905_exit (int code)
2402 PROTOTYPE: $ 2906 PROTOTYPE: $
2403 CODE: 2907 CODE:
2404 _exit (code); 2908 _exit (code);
2909
2910SV *
2911clone (Coro::State coro)
2912 CODE:
2913{
2914#if CORO_CLONE
2915 struct coro *ncoro = coro_clone (coro);
2916 MAGIC *mg;
2917 /* TODO: too much duplication */
2918 ncoro->hv = newHV ();
2919 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2920 mg->mg_flags |= MGf_DUP;
2921 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
2922#else
2923 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
2924#endif
2925}
2926 OUTPUT:
2927 RETVAL
2405 2928
2406int 2929int
2407cctx_stacksize (int new_stacksize = 0) 2930cctx_stacksize (int new_stacksize = 0)
2408 PROTOTYPE: ;$ 2931 PROTOTYPE: ;$
2409 CODE: 2932 CODE:
… …
2516throw (Coro::State self, SV *throw = &PL_sv_undef) 3039throw (Coro::State self, SV *throw = &PL_sv_undef)
2517 PROTOTYPE: $;$ 3040 PROTOTYPE: $;$
2518 CODE: 3041 CODE:
2519{ 3042{
2520 struct coro *current = SvSTATE_current; 3043 struct coro *current = SvSTATE_current;
2521 SV **throwp = self == current ? &coro_throw : &self->throw; 3044 SV **throwp = self == current ? &CORO_THROW : &self->except;
2522 SvREFCNT_dec (*throwp); 3045 SvREFCNT_dec (*throwp);
2523 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3046 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2524} 3047}
2525 3048
2526void 3049void
… …
2530 3053
2531SV * 3054SV *
2532has_cctx (Coro::State coro) 3055has_cctx (Coro::State coro)
2533 PROTOTYPE: $ 3056 PROTOTYPE: $
2534 CODE: 3057 CODE:
2535 RETVAL = boolSV (!!coro->cctx); 3058 /* maybe manage the running flag differently */
3059 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2536 OUTPUT: 3060 OUTPUT:
2537 RETVAL 3061 RETVAL
2538 3062
2539int 3063int
2540is_traced (Coro::State coro) 3064is_traced (Coro::State coro)
… …
2560 3084
2561void 3085void
2562force_cctx () 3086force_cctx ()
2563 PROTOTYPE: 3087 PROTOTYPE:
2564 CODE: 3088 CODE:
2565 SvSTATE_current->cctx->idle_sp = 0; 3089 cctx_current->idle_sp = 0;
2566 3090
2567void 3091void
2568swap_defsv (Coro::State self) 3092swap_defsv (Coro::State self)
2569 PROTOTYPE: $ 3093 PROTOTYPE: $
2570 ALIAS: 3094 ALIAS:
… …
2585 3109
2586BOOT: 3110BOOT:
2587{ 3111{
2588 int i; 3112 int i;
2589 3113
2590 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2591 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3114 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2592 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3115 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2593 3116 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
3117 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2594 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3118 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2595 SvREADONLY_on (coro_current); 3119 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3120 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3121 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3122 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3123
3124 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3125 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3126 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3127 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2596 3128
2597 coro_stash = gv_stashpv ("Coro", TRUE); 3129 coro_stash = gv_stashpv ("Coro", TRUE);
2598 3130
2599 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3131 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2600 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3132 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
… …
2608 3140
2609 { 3141 {
2610 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3142 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2611 3143
2612 coroapi.schedule = api_schedule; 3144 coroapi.schedule = api_schedule;
3145 coroapi.schedule_to = api_schedule_to;
2613 coroapi.cede = api_cede; 3146 coroapi.cede = api_cede;
2614 coroapi.cede_notself = api_cede_notself; 3147 coroapi.cede_notself = api_cede_notself;
2615 coroapi.ready = api_ready; 3148 coroapi.ready = api_ready;
2616 coroapi.is_ready = api_is_ready; 3149 coroapi.is_ready = api_is_ready;
2617 coroapi.nready = coro_nready; 3150 coroapi.nready = coro_nready;
2618 coroapi.current = coro_current; 3151 coroapi.current = coro_current;
2619 3152
2620 GCoroAPI = &coroapi; 3153 /*GCoroAPI = &coroapi;*/
2621 sv_setiv (sv, (IV)&coroapi); 3154 sv_setiv (sv, (IV)&coroapi);
2622 SvREADONLY_on (sv); 3155 SvREADONLY_on (sv);
2623 } 3156 }
2624} 3157}
3158
3159void
3160terminate (...)
3161 CODE:
3162 CORO_EXECUTE_SLF_XS (slf_init_terminate);
2625 3163
2626void 3164void
2627schedule (...) 3165schedule (...)
2628 CODE: 3166 CODE:
2629 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3167 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2630 3168
2631void 3169void
3170schedule_to (...)
3171 CODE:
3172 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3173
3174void
3175cede_to (...)
3176 CODE:
3177 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3178
3179void
2632cede (...) 3180cede (...)
2633 CODE: 3181 CODE:
2634 CORO_EXECUTE_SLF_XS (slf_init_cede); 3182 CORO_EXECUTE_SLF_XS (slf_init_cede);
2635 3183
2636void 3184void
2637cede_notself (...) 3185cede_notself (...)
2638 CODE: 3186 CODE:
2639 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3187 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3188
3189void
3190_cancel (Coro::State self)
3191 CODE:
3192 coro_state_destroy (aTHX_ self);
3193 coro_call_on_destroy (aTHX_ self);
2640 3194
2641void 3195void
2642_set_current (SV *current) 3196_set_current (SV *current)
2643 PROTOTYPE: $ 3197 PROTOTYPE: $
2644 CODE: 3198 CODE:
… …
2689 CODE: 3243 CODE:
2690 RETVAL = coro_nready; 3244 RETVAL = coro_nready;
2691 OUTPUT: 3245 OUTPUT:
2692 RETVAL 3246 RETVAL
2693 3247
2694# for async_pool speedup
2695void 3248void
2696_pool_1 (SV *cb) 3249_pool_handler (...)
2697 CODE: 3250 CODE:
2698{ 3251 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2699 HV *hv = (HV *)SvRV (coro_current);
2700 struct coro *coro = SvSTATE_hv ((SV *)hv);
2701 AV *defav = GvAV (PL_defgv);
2702 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2703 AV *invoke_av;
2704 int i, len;
2705 3252
2706 if (!invoke) 3253void
3254async_pool (SV *cv, ...)
3255 PROTOTYPE: &@
3256 PPCODE:
3257{
3258 HV *hv = (HV *)av_pop (av_async_pool);
3259 AV *av = newAV ();
3260 SV *cb = ST (0);
3261 int i;
3262
3263 av_extend (av, items - 2);
3264 for (i = 1; i < items; ++i)
3265 av_push (av, SvREFCNT_inc_NN (ST (i)));
3266
3267 if ((SV *)hv == &PL_sv_undef)
2707 { 3268 {
2708 SV *old = PL_diehook; 3269 PUSHMARK (SP);
2709 PL_diehook = 0; 3270 EXTEND (SP, 2);
2710 SvREFCNT_dec (old); 3271 PUSHs (sv_Coro);
2711 croak ("\3async_pool terminate\2\n"); 3272 PUSHs ((SV *)cv_pool_handler);
3273 PUTBACK;
3274 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3275 SPAGAIN;
3276
3277 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2712 } 3278 }
2713 3279
2714 SvREFCNT_dec (coro->saved_deffh);
2715 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2716
2717 hv_store (hv, "desc", sizeof ("desc") - 1,
2718 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2719
2720 invoke_av = (AV *)SvRV (invoke);
2721 len = av_len (invoke_av);
2722
2723 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2724
2725 if (len > 0)
2726 { 3280 {
2727 av_fill (defav, len - 1); 3281 struct coro *coro = SvSTATE_hv (hv);
2728 for (i = 0; i < len; ++i) 3282
2729 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3283 assert (!coro->invoke_cb);
3284 assert (!coro->invoke_av);
3285 coro->invoke_cb = SvREFCNT_inc (cb);
3286 coro->invoke_av = av;
2730 } 3287 }
3288
3289 api_ready (aTHX_ (SV *)hv);
3290
3291 if (GIMME_V != G_VOID)
3292 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3293 else
3294 SvREFCNT_dec (hv);
2731} 3295}
3296
3297SV *
3298rouse_cb ()
3299 PROTOTYPE:
3300 CODE:
3301 RETVAL = coro_new_rouse_cb (aTHX);
3302 OUTPUT:
3303 RETVAL
2732 3304
2733void 3305void
2734_pool_2 (SV *cb) 3306rouse_wait (...)
3307 PROTOTYPE: ;$
2735 CODE: 3308 PPCODE:
2736{ 3309 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2737 HV *hv = (HV *)SvRV (coro_current);
2738 struct coro *coro = SvSTATE_hv ((SV *)hv);
2739
2740 sv_setsv (cb, &PL_sv_undef);
2741
2742 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2743 coro->saved_deffh = 0;
2744
2745 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2746 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2747 {
2748 SV *old = PL_diehook;
2749 PL_diehook = 0;
2750 SvREFCNT_dec (old);
2751 croak ("\3async_pool terminate\2\n");
2752 }
2753
2754 av_clear (GvAV (PL_defgv));
2755 hv_store (hv, "desc", sizeof ("desc") - 1,
2756 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2757
2758 coro->prio = 0;
2759
2760 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2761 api_trace (aTHX_ coro_current, 0);
2762
2763 av_push (av_async_pool, newSVsv (coro_current));
2764}
2765 3310
2766 3311
2767MODULE = Coro::State PACKAGE = PerlIO::cede 3312MODULE = Coro::State PACKAGE = PerlIO::cede
2768 3313
2769BOOT: 3314BOOT:
… …
2771 3316
2772 3317
2773MODULE = Coro::State PACKAGE = Coro::Semaphore 3318MODULE = Coro::State PACKAGE = Coro::Semaphore
2774 3319
2775SV * 3320SV *
2776new (SV *klass, SV *count_ = 0) 3321new (SV *klass, SV *count = 0)
2777 CODE: 3322 CODE:
2778{ 3323 RETVAL = sv_bless (
2779 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3324 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2780 AV *av = newAV (); 3325 GvSTASH (CvGV (cv))
2781 SV **ary; 3326 );
3327 OUTPUT:
3328 RETVAL
2782 3329
2783 /* unfortunately, building manually saves memory */ 3330# helper for Coro::Channel
2784 Newx (ary, 2, SV *); 3331SV *
2785 AvALLOC (av) = ary; 3332_alloc (int count)
2786 AvARRAY (av) = ary; 3333 CODE:
2787 AvMAX (av) = 1; 3334 RETVAL = coro_waitarray_new (aTHX_ count);
2788 AvFILLp (av) = 0;
2789 ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2790
2791 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2792}
2793 OUTPUT: 3335 OUTPUT:
2794 RETVAL 3336 RETVAL
2795 3337
2796SV * 3338SV *
2797count (SV *self) 3339count (SV *self)
… …
2806 adjust = 1 3348 adjust = 1
2807 CODE: 3349 CODE:
2808 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3350 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2809 3351
2810void 3352void
2811down (SV *self) 3353down (...)
2812 CODE: 3354 CODE:
2813 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3355 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3356
3357void
3358wait (...)
3359 CODE:
3360 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2814 3361
2815void 3362void
2816try (SV *self) 3363try (SV *self)
2817 PPCODE: 3364 PPCODE:
2818{ 3365{
… …
2830 XSRETURN_NO; 3377 XSRETURN_NO;
2831} 3378}
2832 3379
2833void 3380void
2834waiters (SV *self) 3381waiters (SV *self)
2835 CODE: 3382 PPCODE:
2836{ 3383{
2837 AV *av = (AV *)SvRV (self); 3384 AV *av = (AV *)SvRV (self);
3385 int wcount = AvFILLp (av) + 1 - 1;
2838 3386
2839 if (GIMME_V == G_SCALAR) 3387 if (GIMME_V == G_SCALAR)
2840 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3388 XPUSHs (sv_2mortal (newSViv (wcount)));
2841 else 3389 else
2842 { 3390 {
2843 int i; 3391 int i;
2844 EXTEND (SP, AvFILLp (av) + 1 - 1); 3392 EXTEND (SP, wcount);
2845 for (i = 1; i <= AvFILLp (av); ++i) 3393 for (i = 1; i <= wcount; ++i)
2846 PUSHs (newSVsv (AvARRAY (av)[i])); 3394 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2847 } 3395 }
2848} 3396}
3397
3398MODULE = Coro::State PACKAGE = Coro::Signal
3399
3400SV *
3401new (SV *klass)
3402 CODE:
3403 RETVAL = sv_bless (
3404 coro_waitarray_new (aTHX_ 0),
3405 GvSTASH (CvGV (cv))
3406 );
3407 OUTPUT:
3408 RETVAL
3409
3410void
3411wait (...)
3412 CODE:
3413 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3414
3415void
3416broadcast (SV *self)
3417 CODE:
3418{
3419 AV *av = (AV *)SvRV (self);
3420 coro_signal_wake (aTHX_ av, AvFILLp (av));
3421}
3422
3423void
3424send (SV *self)
3425 CODE:
3426{
3427 AV *av = (AV *)SvRV (self);
3428
3429 if (AvFILLp (av))
3430 coro_signal_wake (aTHX_ av, 1);
3431 else
3432 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3433}
3434
3435IV
3436awaited (SV *self)
3437 CODE:
3438 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3439 OUTPUT:
3440 RETVAL
2849 3441
2850 3442
2851MODULE = Coro::State PACKAGE = Coro::AnyEvent 3443MODULE = Coro::State PACKAGE = Coro::AnyEvent
2852 3444
2853BOOT: 3445BOOT:
… …
2868 sv_setsv (sv_activity, &PL_sv_undef); 3460 sv_setsv (sv_activity, &PL_sv_undef);
2869 if (coro_nready >= incede) 3461 if (coro_nready >= incede)
2870 { 3462 {
2871 PUSHMARK (SP); 3463 PUSHMARK (SP);
2872 PUTBACK; 3464 PUTBACK;
2873 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); 3465 call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2874 SPAGAIN;
2875 } 3466 }
2876 3467
2877 --incede; 3468 --incede;
2878} 3469}
2879 3470
… …
2882 3473
2883void 3474void
2884_register (char *target, char *proto, SV *req) 3475_register (char *target, char *proto, SV *req)
2885 CODE: 3476 CODE:
2886{ 3477{
2887 HV *st; 3478 CV *req_cv = coro_sv_2cv (aTHX_ req);
2888 GV *gvp;
2889 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2890 /* newXSproto doesn't return the CV on 5.8 */ 3479 /* newXSproto doesn't return the CV on 5.8 */
2891 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3480 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2892 sv_setpv ((SV *)slf_cv, proto); 3481 sv_setpv ((SV *)slf_cv, proto);
2893 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3482 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2894} 3483}

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