ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.197 by root, Sat Oct 6 19:25:00 2007 UTC vs.
Revision 1.269 by root, Fri Nov 14 06:50:11 2008 UTC

1#include "libcoro/coro.c" 1#include "libcoro/coro.c"
2 2
3#define PERL_NO_GET_CONTEXT 3#define PERL_NO_GET_CONTEXT
4#define PERL_EXT
4 5
5#include "EXTERN.h" 6#include "EXTERN.h"
6#include "perl.h" 7#include "perl.h"
7#include "XSUB.h" 8#include "XSUB.h"
9#include "perliol.h"
8 10
9#include "patchlevel.h" 11#include "patchlevel.h"
10 12
11#include <stdio.h> 13#include <stdio.h>
12#include <errno.h> 14#include <errno.h>
13#include <assert.h> 15#include <assert.h>
16
17#ifdef WIN32
18# undef setjmp
19# undef longjmp
20# undef _exit
21# define setjmp _setjmp // deep magic, don't ask
22#else
23# include <inttypes.h> /* most portable stdint.h */
24#endif
14 25
15#ifdef HAVE_MMAP 26#ifdef HAVE_MMAP
16# include <unistd.h> 27# include <unistd.h>
17# include <sys/mman.h> 28# include <sys/mman.h>
18# ifndef MAP_ANONYMOUS 29# ifndef MAP_ANONYMOUS
… …
35# define BOOT_PAGESIZE (void)0 46# define BOOT_PAGESIZE (void)0
36#endif 47#endif
37 48
38#if CORO_USE_VALGRIND 49#if CORO_USE_VALGRIND
39# include <valgrind/valgrind.h> 50# include <valgrind/valgrind.h>
40# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
41#else
42# define REGISTER_STACK(cctx,start,end)
43#endif 51#endif
44 52
45/* the maximum number of idle cctx that will be pooled */ 53/* the maximum number of idle cctx that will be pooled */
46#define MAX_IDLE_CCTX 8 54static int cctx_max_idle = 4;
47 55
48#define PERL_VERSION_ATLEAST(a,b,c) \ 56#define PERL_VERSION_ATLEAST(a,b,c) \
49 (PERL_REVISION > (a) \ 57 (PERL_REVISION > (a) \
50 || (PERL_REVISION == (a) \ 58 || (PERL_REVISION == (a) \
51 && (PERL_VERSION > (b) \ 59 && (PERL_VERSION > (b) \
… …
70# ifndef IS_PADCONST 78# ifndef IS_PADCONST
71# define IS_PADCONST(v) 0 79# define IS_PADCONST(v) 0
72# endif 80# endif
73#endif 81#endif
74 82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100
75/* 5.8.7 */ 101/* 5.8.7 */
76#ifndef SvRV_set 102#ifndef SvRV_set
77# define SvRV_set(s,v) SvRV(s) = (v) 103# define SvRV_set(s,v) SvRV(s) = (v)
78#endif 104#endif
79 105
80/* 5.8.8 */
81#ifndef GV_NOTQUAL
82# define GV_NOTQUAL 0
83#endif
84#ifndef newSV
85# define newSV(l) NEWSV(0,l)
86#endif
87
88#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 106#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
89# undef CORO_STACKGUARD 107# undef CORO_STACKGUARD
90#endif 108#endif
91 109
92#ifndef CORO_STACKGUARD 110#ifndef CORO_STACKGUARD
… …
98# define CORO_PREFER_PERL_FUNCTIONS 0 116# define CORO_PREFER_PERL_FUNCTIONS 0
99#endif 117#endif
100 118
101/* 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
102 * portable way as possible. */ 120 * portable way as possible. */
103#define dSTACKLEVEL volatile char stacklevel 121#if __GNUC__ >= 4
104#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
105 126
106#define IN_DESTRUCT (PL_main_cv == Nullcv) 127#define IN_DESTRUCT (PL_main_cv == Nullcv)
107 128
108#if __GNUC__ >= 3 129#if __GNUC__ >= 3
109# define attribute(x) __attribute__(x) 130# define attribute(x) __attribute__(x)
110# define BARRIER __asm__ __volatile__ ("" : : : "memory")
111# define expect(expr,value) __builtin_expect ((expr),(value)) 131# define expect(expr,value) __builtin_expect ((expr),(value))
132# define INLINE static inline
112#else 133#else
113# define attribute(x) 134# define attribute(x)
114# define BARRIER
115# define expect(expr,value) (expr) 135# define expect(expr,value) (expr)
136# define INLINE static
116#endif 137#endif
117 138
118#define expect_false(expr) expect ((expr) != 0, 0) 139#define expect_false(expr) expect ((expr) != 0, 0)
119#define expect_true(expr) expect ((expr) != 0, 1) 140#define expect_true(expr) expect ((expr) != 0, 1)
120 141
121#define NOINLINE attribute ((noinline)) 142#define NOINLINE attribute ((noinline))
122 143
123#include "CoroAPI.h" 144#include "CoroAPI.h"
124 145
125#ifdef USE_ITHREADS 146#ifdef USE_ITHREADS
147
126static perl_mutex coro_mutex; 148static perl_mutex coro_lock;
127# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 149# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
128# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) 150# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
151# if CORO_PTHREAD
152static void *coro_thx;
153# endif
154
129#else 155#else
156
130# define LOCK (void)0 157# define LOCK (void)0
131# define UNLOCK (void)0 158# define UNLOCK (void)0
159
132#endif 160#endif
161
162# undef LOCK
163# define LOCK (void)0
164# undef UNLOCK
165# define UNLOCK (void)0
133 166
134/* helper storage struct for Coro::AIO */ 167/* helper storage struct for Coro::AIO */
135struct io_state 168struct io_state
136{ 169{
170 AV *res;
137 int errorno; 171 int errorno;
138 I32 laststype; 172 I32 laststype; /* U16 in 5.10.0 */
139 int laststatval; 173 int laststatval;
140 Stat_t statcache; 174 Stat_t statcache;
141}; 175};
142 176
177static double (*nvtime)(); /* so why doesn't it take void? */
178
179static U32 cctx_gen;
143static size_t coro_stacksize = CORO_STACKSIZE; 180static size_t cctx_stacksize = CORO_STACKSIZE;
144static struct CoroAPI coroapi; 181static struct CoroAPI coroapi;
145static AV *main_mainstack; /* used to differentiate between $main and others */ 182static AV *main_mainstack; /* used to differentiate between $main and others */
146static JMPENV *main_top_env; 183static JMPENV *main_top_env;
147static HV *coro_state_stash, *coro_stash; 184static HV *coro_state_stash, *coro_stash;
148static SV *coro_mortal; /* will be freed after next transfer */ 185static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
186static volatile struct coro *transfer_next;
187
188struct transfer_args
189{
190 struct coro *prev, *next;
191};
149 192
150static GV *irsgv; /* $/ */ 193static GV *irsgv; /* $/ */
151static GV *stdoutgv; /* *STDOUT */ 194static GV *stdoutgv; /* *STDOUT */
195static SV *rv_diehook;
196static SV *rv_warnhook;
197static HV *hv_sig; /* %SIG */
152 198
153/* async_pool helper stuff */ 199/* async_pool helper stuff */
154static SV *sv_pool_rss; 200static SV *sv_pool_rss;
155static SV *sv_pool_size; 201static SV *sv_pool_size;
156static AV *av_async_pool; 202static AV *av_async_pool;
203
204/* Coro::AnyEvent */
205static SV *sv_activity;
157 206
158static struct coro_cctx *cctx_first; 207static struct coro_cctx *cctx_first;
159static int cctx_count, cctx_idle; 208static int cctx_count, cctx_idle;
160 209
161enum { 210enum {
… …
179 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 228 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
180 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 229 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
181 JMPENV *top_env; 230 JMPENV *top_env;
182 coro_context cctx; 231 coro_context cctx;
183 232
233 U32 gen;
184#if CORO_USE_VALGRIND 234#if CORO_USE_VALGRIND
185 int valgrind_id; 235 int valgrind_id;
186#endif 236#endif
187 unsigned char flags; 237 unsigned char flags;
188} coro_cctx; 238} coro_cctx;
… …
192 CF_READY = 0x0002, /* coroutine is ready */ 242 CF_READY = 0x0002, /* coroutine is ready */
193 CF_NEW = 0x0004, /* has never been switched to */ 243 CF_NEW = 0x0004, /* has never been switched to */
194 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 244 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
195}; 245};
196 246
247/* the structure where most of the perl state is stored, overlaid on the cxstack */
248typedef struct {
249 SV *defsv;
250 AV *defav;
251 SV *errsv;
252 SV *irsgv;
253#define VAR(name,type) type name;
254# include "state.h"
255#undef VAR
256} perl_slots;
257
258#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
259
197/* this is a structure representing a perl-level coroutine */ 260/* this is a structure representing a perl-level coroutine */
198struct coro { 261struct coro {
199 /* the c coroutine allocated to this perl coroutine, if any */ 262 /* the c coroutine allocated to this perl coroutine, if any */
200 coro_cctx *cctx; 263 coro_cctx *cctx;
201 264
265 /* process data */
266 AV *mainstack;
267 perl_slots *slot; /* basically the saved sp */
268
202 /* data associated with this coroutine (initial args) */ 269 AV *args; /* data associated with this coroutine (initial args) */
203 AV *args; 270 int refcnt; /* coroutines are refcounted, yes */
204 int refcnt;
205 int flags; /* CF_ flags */ 271 int flags; /* CF_ flags */
206 272 HV *hv; /* the perl hash associated with this coro, if any */
207 /* optionally saved, might be zero */
208 AV *defav; /* @_ */
209 SV *defsv; /* $_ */
210 SV *errsv; /* $@ */
211 SV *deffh; /* default filehandle */
212 SV *irssv; /* $/ */
213 SV *irssv_sv; /* real $/ cache */
214
215#define VAR(name,type) type name;
216# include "state.h"
217#undef VAR
218 273
219 /* statistics */ 274 /* statistics */
220 int usecount; /* number of transfers to this coro */ 275 int usecount; /* number of transfers to this coro */
221 276
222 /* coro process data */ 277 /* coro process data */
223 int prio; 278 int prio;
224 SV *throw; 279 SV *throw; /* exception to be thrown */
225 280
226 /* async_pool */ 281 /* async_pool */
227 SV *saved_deffh; 282 SV *saved_deffh;
228 283
229 /* linked list */ 284 /* linked list */
230 struct coro *next, *prev; 285 struct coro *next, *prev;
231 HV *hv; /* the perl hash associated with this coro, if any */
232}; 286};
233 287
234typedef struct coro *Coro__State; 288typedef struct coro *Coro__State;
235typedef struct coro *Coro__State_or_hashref; 289typedef struct coro *Coro__State_or_hashref;
236 290
… …
243#define PRIO_IDLE -3 297#define PRIO_IDLE -3
244#define PRIO_MIN -4 298#define PRIO_MIN -4
245 299
246/* for Coro.pm */ 300/* for Coro.pm */
247static SV *coro_current; 301static SV *coro_current;
302static SV *coro_readyhook;
248static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 303static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
249static int coro_nready; 304static int coro_nready;
250static struct coro *coro_first; 305static struct coro *coro_first;
251 306
252/** lowlevel stuff **********************************************************/ 307/** lowlevel stuff **********************************************************/
253 308
309static SV *
310coro_get_sv (pTHX_ const char *name, int create)
311{
312#if PERL_VERSION_ATLEAST (5,10,0)
313 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
314 get_sv (name, create);
315#endif
316 return get_sv (name, create);
317}
318
319static AV *
320coro_get_av (pTHX_ const char *name, int create)
321{
322#if PERL_VERSION_ATLEAST (5,10,0)
323 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
324 get_av (name, create);
325#endif
326 return get_av (name, create);
327}
328
329static HV *
330coro_get_hv (pTHX_ const char *name, int create)
331{
332#if PERL_VERSION_ATLEAST (5,10,0)
333 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
334 get_hv (name, create);
335#endif
336 return get_hv (name, create);
337}
338
254static AV * 339static AV *
255coro_clone_padlist (pTHX_ CV *cv) 340coro_clone_padlist (pTHX_ CV *cv)
256{ 341{
257 AV *padlist = CvPADLIST (cv); 342 AV *padlist = CvPADLIST (cv);
258 AV *newpadlist, *newpad; 343 AV *newpadlist, *newpad;
259 344
260 newpadlist = newAV (); 345 newpadlist = newAV ();
261 AvREAL_off (newpadlist); 346 AvREAL_off (newpadlist);
262#if PERL_VERSION_ATLEAST (5,9,0) 347#if PERL_VERSION_ATLEAST (5,10,0)
263 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 348 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
264#else 349#else
265 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 350 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
266#endif 351#endif
267 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 352 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
268 --AvFILLp (padlist); 353 --AvFILLp (padlist);
269 354
270 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); 355 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
271 av_store (newpadlist, 1, (SV *)newpad); 356 av_store (newpadlist, 1, (SV *)newpad);
272 357
273 return newpadlist; 358 return newpadlist;
274} 359}
275 360
… …
305 390
306 /* casting is fun. */ 391 /* casting is fun. */
307 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 392 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
308 free_padlist (aTHX_ padlist); 393 free_padlist (aTHX_ padlist);
309 394
310 SvREFCNT_dec (av); 395 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
311 396
312 return 0; 397 return 0;
313} 398}
314 399
315#define PERL_MAGIC_coro PERL_MAGIC_ext 400#define CORO_MAGIC_type_cv PERL_MAGIC_ext
401#define CORO_MAGIC_type_state PERL_MAGIC_ext
316 402
317static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; 403static MGVTBL coro_cv_vtbl = {
404 0, 0, 0, 0,
405 coro_cv_free
406};
318 407
319#define CORO_MAGIC(cv) \ 408#define CORO_MAGIC(sv, type) \
320 SvMAGIC (cv) \ 409 SvMAGIC (sv) \
321 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 410 ? SvMAGIC (sv)->mg_type == type \
322 ? SvMAGIC (cv) \ 411 ? SvMAGIC (sv) \
323 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 412 : mg_find (sv, type) \
324 : 0 413 : 0
325 414
326static struct coro * 415#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
416#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
417
418INLINE struct coro *
327SvSTATE_ (pTHX_ SV *coro) 419SvSTATE_ (pTHX_ SV *coro)
328{ 420{
329 HV *stash; 421 HV *stash;
330 MAGIC *mg; 422 MAGIC *mg;
331 423
… …
341 /* very slow, but rare, check */ 433 /* very slow, but rare, check */
342 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) 434 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
343 croak ("Coro::State object required"); 435 croak ("Coro::State object required");
344 } 436 }
345 437
346 mg = CORO_MAGIC (coro); 438 mg = CORO_MAGIC_state (coro);
347 return (struct coro *)mg->mg_ptr; 439 return (struct coro *)mg->mg_ptr;
348} 440}
349 441
350#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 442#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
351 443
352/* the next two functions merely cache the padlists */ 444/* the next two functions merely cache the padlists */
353static void 445static void
354get_padlist (pTHX_ CV *cv) 446get_padlist (pTHX_ CV *cv)
355{ 447{
356 MAGIC *mg = CORO_MAGIC (cv); 448 MAGIC *mg = CORO_MAGIC_cv (cv);
357 AV *av; 449 AV *av;
358 450
359 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 451 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
360 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 452 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
361 else 453 else
362 { 454 {
363#if CORO_PREFER_PERL_FUNCTIONS 455#if CORO_PREFER_PERL_FUNCTIONS
364 /* this is probably cleaner, but also slower? */ 456 /* this is probably cleaner? but also slower! */
457 /* in practise, it seems to be less stable */
365 CV *cp = Perl_cv_clone (cv); 458 CV *cp = Perl_cv_clone (cv);
366 CvPADLIST (cv) = CvPADLIST (cp); 459 CvPADLIST (cv) = CvPADLIST (cp);
367 CvPADLIST (cp) = 0; 460 CvPADLIST (cp) = 0;
368 SvREFCNT_dec (cp); 461 SvREFCNT_dec (cp);
369#else 462#else
… …
373} 466}
374 467
375static void 468static void
376put_padlist (pTHX_ CV *cv) 469put_padlist (pTHX_ CV *cv)
377{ 470{
378 MAGIC *mg = CORO_MAGIC (cv); 471 MAGIC *mg = CORO_MAGIC_cv (cv);
379 AV *av; 472 AV *av;
380 473
381 if (expect_false (!mg)) 474 if (expect_false (!mg))
382 { 475 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
383 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
384 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
385 mg->mg_virtual = &vtbl_coro;
386 mg->mg_obj = (SV *)newAV ();
387 }
388 476
389 av = (AV *)mg->mg_obj; 477 av = (AV *)mg->mg_obj;
390 478
391 if (expect_false (AvFILLp (av) >= AvMAX (av))) 479 if (expect_false (AvFILLp (av) >= AvMAX (av)))
392 av_extend (av, AvMAX (av) + 1); 480 av_extend (av, AvMAX (av) + 1);
… …
397/** load & save, init *******************************************************/ 485/** load & save, init *******************************************************/
398 486
399static void 487static void
400load_perl (pTHX_ Coro__State c) 488load_perl (pTHX_ Coro__State c)
401{ 489{
490 perl_slots *slot = c->slot;
491 c->slot = 0;
492
493 PL_mainstack = c->mainstack;
494
495 GvSV (PL_defgv) = slot->defsv;
496 GvAV (PL_defgv) = slot->defav;
497 GvSV (PL_errgv) = slot->errsv;
498 GvSV (irsgv) = slot->irsgv;
499
402#define VAR(name,type) PL_ ## name = c->name; 500 #define VAR(name,type) PL_ ## name = slot->name;
403# include "state.h" 501 # include "state.h"
404#undef VAR 502 #undef VAR
405
406 GvSV (PL_defgv) = c->defsv;
407 GvAV (PL_defgv) = c->defav;
408 GvSV (PL_errgv) = c->errsv;
409 GvSV (irsgv) = c->irssv_sv;
410 503
411 { 504 {
412 dSP; 505 dSP;
506
413 CV *cv; 507 CV *cv;
414 508
415 /* now do the ugly restore mess */ 509 /* now do the ugly restore mess */
416 while (expect_true (cv = (CV *)POPs)) 510 while (expect_true (cv = (CV *)POPs))
417 { 511 {
… …
452 546
453 if (expect_true (CvDEPTH (cv))) 547 if (expect_true (CvDEPTH (cv)))
454 { 548 {
455 EXTEND (SP, 3); 549 EXTEND (SP, 3);
456 PUSHs ((SV *)CvPADLIST (cv)); 550 PUSHs ((SV *)CvPADLIST (cv));
457 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 551 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
458 PUSHs ((SV *)cv); 552 PUSHs ((SV *)cv);
459 553
460 CvDEPTH (cv) = 0; 554 CvDEPTH (cv) = 0;
461 get_padlist (aTHX_ cv); 555 get_padlist (aTHX_ cv);
462 } 556 }
… …
472 } 566 }
473 567
474 PUTBACK; 568 PUTBACK;
475 } 569 }
476 570
571 /* allocate some space on the context stack for our purposes */
572 /* we manually unroll here, as usually 2 slots is enough */
573 if (SLOT_COUNT >= 1) CXINC;
574 if (SLOT_COUNT >= 2) CXINC;
575 if (SLOT_COUNT >= 3) CXINC;
576 {
577 int i;
578 for (i = 3; i < SLOT_COUNT; ++i)
579 CXINC;
580 }
581 cxstack_ix -= SLOT_COUNT; /* undo allocation */
582
583 c->mainstack = PL_mainstack;
584
585 {
586 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
587
477 c->defav = GvAV (PL_defgv); 588 slot->defav = GvAV (PL_defgv);
478 c->defsv = DEFSV; 589 slot->defsv = DEFSV;
479 c->errsv = ERRSV; 590 slot->errsv = ERRSV;
480 c->irssv_sv = GvSV (irsgv); 591 slot->irsgv = GvSV (irsgv);
481 592
482#define VAR(name,type)c->name = PL_ ## name; 593 #define VAR(name,type) slot->name = PL_ ## name;
483# include "state.h" 594 # include "state.h"
484#undef VAR 595 #undef VAR
596 }
485} 597}
486 598
487/* 599/*
488 * allocate various perl stacks. This is an exact copy 600 * allocate various perl stacks. This is an exact copy
489 * of perl.c:init_stacks, except that it uses less memory 601 * of perl.c:init_stacks, except that it uses less memory
… …
494# define coro_init_stacks init_stacks 606# define coro_init_stacks init_stacks
495#else 607#else
496static void 608static void
497coro_init_stacks (pTHX) 609coro_init_stacks (pTHX)
498{ 610{
499 PL_curstackinfo = new_stackinfo(64, 6); 611 PL_curstackinfo = new_stackinfo(32, 8);
500 PL_curstackinfo->si_type = PERLSI_MAIN; 612 PL_curstackinfo->si_type = PERLSI_MAIN;
501 PL_curstack = PL_curstackinfo->si_stack; 613 PL_curstack = PL_curstackinfo->si_stack;
502 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 614 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
503 615
504 PL_stack_base = AvARRAY(PL_curstack); 616 PL_stack_base = AvARRAY(PL_curstack);
505 PL_stack_sp = PL_stack_base; 617 PL_stack_sp = PL_stack_base;
506 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 618 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
507 619
508 New(50,PL_tmps_stack,64,SV*); 620 New(50,PL_tmps_stack,32,SV*);
509 PL_tmps_floor = -1; 621 PL_tmps_floor = -1;
510 PL_tmps_ix = -1; 622 PL_tmps_ix = -1;
511 PL_tmps_max = 64; 623 PL_tmps_max = 32;
512 624
513 New(54,PL_markstack,16,I32); 625 New(54,PL_markstack,16,I32);
514 PL_markstack_ptr = PL_markstack; 626 PL_markstack_ptr = PL_markstack;
515 PL_markstack_max = PL_markstack + 16; 627 PL_markstack_max = PL_markstack + 16;
516 628
517#ifdef SET_MARK_OFFSET 629#ifdef SET_MARK_OFFSET
518 SET_MARK_OFFSET; 630 SET_MARK_OFFSET;
519#endif 631#endif
520 632
521 New(54,PL_scopestack,16,I32); 633 New(54,PL_scopestack,8,I32);
522 PL_scopestack_ix = 0; 634 PL_scopestack_ix = 0;
523 PL_scopestack_max = 16; 635 PL_scopestack_max = 8;
524 636
525 New(54,PL_savestack,64,ANY); 637 New(54,PL_savestack,24,ANY);
526 PL_savestack_ix = 0; 638 PL_savestack_ix = 0;
527 PL_savestack_max = 64; 639 PL_savestack_max = 24;
528 640
529#if !PERL_VERSION_ATLEAST (5,9,0) 641#if !PERL_VERSION_ATLEAST (5,10,0)
530 New(54,PL_retstack,4,OP*); 642 New(54,PL_retstack,4,OP*);
531 PL_retstack_ix = 0; 643 PL_retstack_ix = 0;
532 PL_retstack_max = 4; 644 PL_retstack_max = 4;
533#endif 645#endif
534} 646}
… …
536 648
537/* 649/*
538 * destroy the stacks, the callchain etc... 650 * destroy the stacks, the callchain etc...
539 */ 651 */
540static void 652static void
541coro_destroy_stacks (pTHX) 653coro_destruct_stacks (pTHX)
542{ 654{
543 while (PL_curstackinfo->si_next) 655 while (PL_curstackinfo->si_next)
544 PL_curstackinfo = PL_curstackinfo->si_next; 656 PL_curstackinfo = PL_curstackinfo->si_next;
545 657
546 while (PL_curstackinfo) 658 while (PL_curstackinfo)
… …
557 669
558 Safefree (PL_tmps_stack); 670 Safefree (PL_tmps_stack);
559 Safefree (PL_markstack); 671 Safefree (PL_markstack);
560 Safefree (PL_scopestack); 672 Safefree (PL_scopestack);
561 Safefree (PL_savestack); 673 Safefree (PL_savestack);
562#if !PERL_VERSION_ATLEAST (5,9,0) 674#if !PERL_VERSION_ATLEAST (5,10,0)
563 Safefree (PL_retstack); 675 Safefree (PL_retstack);
564#endif 676#endif
565} 677}
566 678
567static size_t 679static size_t
… …
569{ 681{
570 size_t rss = sizeof (*coro); 682 size_t rss = sizeof (*coro);
571 683
572 if (coro->mainstack) 684 if (coro->mainstack)
573 { 685 {
686 perl_slots tmp_slot;
687 perl_slots *slot;
688
574 if (coro->flags & CF_RUNNING) 689 if (coro->flags & CF_RUNNING)
575 { 690 {
691 slot = &tmp_slot;
692
576 #define VAR(name,type)coro->name = PL_ ## name; 693 #define VAR(name,type) slot->name = PL_ ## name;
577 # include "state.h" 694 # include "state.h"
578 #undef VAR 695 #undef VAR
579 } 696 }
697 else
698 slot = coro->slot;
580 699
700 if (slot)
701 {
581 rss += sizeof (coro->curstackinfo); 702 rss += sizeof (slot->curstackinfo);
582 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
583 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 703 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
584 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); 704 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
585 rss += coro->tmps_max * sizeof (SV *); 705 rss += slot->tmps_max * sizeof (SV *);
586 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); 706 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
587 rss += coro->scopestack_max * sizeof (I32); 707 rss += slot->scopestack_max * sizeof (I32);
588 rss += coro->savestack_max * sizeof (ANY); 708 rss += slot->savestack_max * sizeof (ANY);
589 709
590#if !PERL_VERSION_ATLEAST (5,9,0) 710#if !PERL_VERSION_ATLEAST (5,10,0)
591 rss += coro->retstack_max * sizeof (OP *); 711 rss += slot->retstack_max * sizeof (OP *);
592#endif 712#endif
713 }
593 } 714 }
594 715
595 return rss; 716 return rss;
596} 717}
597 718
719/** set stacklevel support **************************************************/
720
721/* we sometimes need to create the effect of pp_slf calling us */
722#define SLF_HEAD (void)0
723/* we sometimes need to create the effect of leaving via pp_slf */
724#define SLF_TAIL slf_tail (aTHX)
725
726INLINE void
727slf_tail (pTHX)
728{
729 dSP;
730 SV **bot = SP;
731
732 int gimme = GIMME_V;
733
734 /* make sure we put something on the stack in scalar context */
735 if (gimme == G_SCALAR)
736 {
737 if (sp == bot)
738 XPUSHs (&PL_sv_undef);
739
740 SP = bot + 1;
741 }
742
743 PUTBACK;
744}
745
598/** coroutine stack handling ************************************************/ 746/** coroutine stack handling ************************************************/
747
748static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
749static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
750static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
751
752/* apparently < 5.8.8 */
753#ifndef MgPV_nolen_const
754#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
755 SvPV_nolen((SV*)((mg)->mg_ptr)) : \
756 (const char*)(mg)->mg_ptr)
757#endif
758
759/*
760 * This overrides the default magic get method of %SIG elements.
761 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
762 * and instead of tryign to save and restore the hash elements, we just provide
763 * readback here.
764 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
765 * not expecting this to actually change the hook. This is a potential problem
766 * when a schedule happens then, but we ignore this.
767 */
768static int
769coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
770{
771 const char *s = MgPV_nolen_const (mg);
772
773 if (*s == '_')
774 {
775 SV **svp = 0;
776
777 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
778 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
779
780 if (svp)
781 {
782 sv_setsv (sv, *svp ? *svp : &PL_sv_undef);
783 return 0;
784 }
785 }
786
787 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
788}
789
790static int
791coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
792{
793 const char *s = MgPV_nolen_const (mg);
794
795 if (*s == '_')
796 {
797 SV **svp = 0;
798
799 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
800 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
801
802 if (svp)
803 {
804 SV *old = *svp;
805 *svp = 0;
806 SvREFCNT_dec (old);
807 return 0;
808 }
809 }
810
811 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
812}
813
814static int
815coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
816{
817 const char *s = MgPV_nolen_const (mg);
818
819 if (*s == '_')
820 {
821 SV **svp = 0;
822
823 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
824 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
825
826 if (svp)
827 {
828 SV *old = *svp;
829 *svp = newSVsv (sv);
830 SvREFCNT_dec (old);
831 return 0;
832 }
833 }
834
835 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
836}
599 837
600static void 838static void
601coro_setup (pTHX_ struct coro *coro) 839coro_setup (pTHX_ struct coro *coro)
602{ 840{
603 /* 841 /*
… …
612 PL_curpm = 0; 850 PL_curpm = 0;
613 PL_curpad = 0; 851 PL_curpad = 0;
614 PL_localizing = 0; 852 PL_localizing = 0;
615 PL_dirty = 0; 853 PL_dirty = 0;
616 PL_restartop = 0; 854 PL_restartop = 0;
855#if PERL_VERSION_ATLEAST (5,10,0)
856 PL_parser = 0;
857#endif
858
859 /* recreate the die/warn hooks */
860 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
861 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
617 862
618 GvSV (PL_defgv) = newSV (0); 863 GvSV (PL_defgv) = newSV (0);
619 GvAV (PL_defgv) = coro->args; coro->args = 0; 864 GvAV (PL_defgv) = coro->args; coro->args = 0;
620 GvSV (PL_errgv) = newSV (0); 865 GvSV (PL_errgv) = newSV (0);
621 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 866 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
622 PL_rs = newSVsv (GvSV (irsgv)); 867 PL_rs = newSVsv (GvSV (irsgv));
623 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); 868 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
624 869
625 { 870 {
626 dSP; 871 dSP;
627 LOGOP myop; 872 UNOP myop;
628 873
629 Zero (&myop, 1, LOGOP); 874 Zero (&myop, 1, UNOP);
630 myop.op_next = Nullop; 875 myop.op_next = Nullop;
631 myop.op_flags = OPf_WANT_VOID; 876 myop.op_flags = OPf_WANT_VOID;
632 877
633 PUSHMARK (SP); 878 PUSHMARK (SP);
634 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 879 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
… …
636 PL_op = (OP *)&myop; 881 PL_op = (OP *)&myop;
637 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 882 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
638 SPAGAIN; 883 SPAGAIN;
639 } 884 }
640 885
641 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ 886 /* this newly created coroutine might be run on an existing cctx which most
887 * likely was suspended in set_stacklevel, called from pp_set_stacklevel,
888 * so we have to emulate entering pp_set_stacklevel here.
889 */
890 SLF_HEAD;
642} 891}
643 892
644static void 893static void
645coro_destroy (pTHX_ struct coro *coro) 894coro_destruct (pTHX_ struct coro *coro)
646{ 895{
647 if (!IN_DESTRUCT) 896 if (!IN_DESTRUCT)
648 { 897 {
649 /* restore all saved variables and stuff */ 898 /* restore all saved variables and stuff */
650 LEAVE_SCOPE (0); 899 LEAVE_SCOPE (0);
… …
666 SvREFCNT_dec (GvSV (PL_errgv)); 915 SvREFCNT_dec (GvSV (PL_errgv));
667 SvREFCNT_dec (PL_defoutgv); 916 SvREFCNT_dec (PL_defoutgv);
668 SvREFCNT_dec (PL_rs); 917 SvREFCNT_dec (PL_rs);
669 SvREFCNT_dec (GvSV (irsgv)); 918 SvREFCNT_dec (GvSV (irsgv));
670 919
920 SvREFCNT_dec (PL_diehook);
921 SvREFCNT_dec (PL_warnhook);
922
671 SvREFCNT_dec (coro->saved_deffh); 923 SvREFCNT_dec (coro->saved_deffh);
672 SvREFCNT_dec (coro->throw); 924 SvREFCNT_dec (coro->throw);
673 925
674 coro_destroy_stacks (aTHX); 926 coro_destruct_stacks (aTHX);
675} 927}
676 928
677static void 929INLINE void
678free_coro_mortal (pTHX) 930free_coro_mortal (pTHX)
679{ 931{
680 if (expect_true (coro_mortal)) 932 if (expect_true (coro_mortal))
681 { 933 {
682 SvREFCNT_dec (coro_mortal); 934 SvREFCNT_dec (coro_mortal);
… …
716 : cx->blk_gimme == G_SCALAR ? bot + 1 968 : cx->blk_gimme == G_SCALAR ? bot + 1
717 : bot; 969 : bot;
718 970
719 av_extend (av, top - bot); 971 av_extend (av, top - bot);
720 while (bot < top) 972 while (bot < top)
721 av_push (av, SvREFCNT_inc (*bot++)); 973 av_push (av, SvREFCNT_inc_NN (*bot++));
722 974
723 PL_runops = RUNOPS_DEFAULT; 975 PL_runops = RUNOPS_DEFAULT;
724 ENTER; 976 ENTER;
725 SAVETMPS; 977 SAVETMPS;
726 EXTEND (SP, 3); 978 EXTEND (SP, 3);
… …
764 SAVETMPS; 1016 SAVETMPS;
765 EXTEND (SP, 3); 1017 EXTEND (SP, 3);
766 PUSHMARK (SP); 1018 PUSHMARK (SP);
767 PUSHs (&PL_sv_yes); 1019 PUSHs (&PL_sv_yes);
768 PUSHs (fullname); 1020 PUSHs (fullname);
769 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1021 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
770 PUTBACK; 1022 PUTBACK;
771 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1023 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
772 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1024 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
773 SPAGAIN; 1025 SPAGAIN;
774 FREETMPS; 1026 FREETMPS;
… …
806 1058
807 TAINT_NOT; 1059 TAINT_NOT;
808 return 0; 1060 return 0;
809} 1061}
810 1062
1063static void
1064prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx)
1065{
1066 ta->prev = (struct coro *)cctx;
1067 ta->next = 0;
1068}
1069
811/* inject a fake call to Coro::State::_cctx_init into the execution */ 1070/* inject a fake call to Coro::State::_cctx_init into the execution */
812/* _cctx_init should be careful, as it could be called at almost any time */ 1071/* _cctx_init should be careful, as it could be called at almost any time */
813/* during execution of a perl program */ 1072/* during execution of a perl program */
1073/* also initialises PL_top_env */
814static void NOINLINE 1074static void NOINLINE
815prepare_cctx (pTHX_ coro_cctx *cctx) 1075cctx_prepare (pTHX_ coro_cctx *cctx)
816{ 1076{
817 dSP; 1077 dSP;
818 LOGOP myop; 1078 UNOP myop;
819 1079
820 PL_top_env = &PL_start_env; 1080 PL_top_env = &PL_start_env;
821 1081
822 if (cctx->flags & CC_TRACE) 1082 if (cctx->flags & CC_TRACE)
823 PL_runops = runops_trace; 1083 PL_runops = runops_trace;
824 1084
825 Zero (&myop, 1, LOGOP); 1085 Zero (&myop, 1, UNOP);
826 myop.op_next = PL_op; 1086 myop.op_next = PL_op;
827 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1087 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
828 1088
829 PUSHMARK (SP); 1089 PUSHMARK (SP);
830 EXTEND (SP, 2); 1090 EXTEND (SP, 2);
831 PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); 1091 PUSHs (sv_2mortal (newSViv ((IV)cctx)));
832 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1092 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
833 PUTBACK; 1093 PUTBACK;
834 PL_op = (OP *)&myop; 1094 PL_op = (OP *)&myop;
835 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1095 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
836 SPAGAIN; 1096 SPAGAIN;
837} 1097}
838 1098
1099/* the tail of transfer: execute stuff we can only do after a transfer */
1100INLINE void
1101transfer_tail (pTHX)
1102{
1103 struct coro *next = (struct coro *)transfer_next;
1104 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1105 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1106
1107 free_coro_mortal (aTHX);
1108 UNLOCK;
1109
1110 if (expect_false (next->throw))
1111 {
1112 SV *exception = sv_2mortal (next->throw);
1113
1114 next->throw = 0;
1115 sv_setsv (ERRSV, exception);
1116 croak (0);
1117 }
1118}
1119
839/* 1120/*
840 * this is a _very_ stripped down perl interpreter ;) 1121 * this is a _very_ stripped down perl interpreter ;)
841 */ 1122 */
842static void 1123static void
843coro_run (void *arg) 1124cctx_run (void *arg)
844{ 1125{
1126#ifdef USE_ITHREADS
1127# if CORO_PTHREAD
1128 PERL_SET_CONTEXT (coro_thx);
1129# endif
1130#endif
1131 {
845 dTHX; 1132 dTHX;
846 1133
847 /* coro_run is the alternative tail of transfer(), so unlock here. */ 1134 /* we are the alternative tail to pp_set_stacklevel */
848 UNLOCK; 1135 /* so do the same things here */
1136 SLF_TAIL;
849 1137
850 /* we now skip the entersub that lead to transfer() */ 1138 /* we now skip the op that did lead to transfer() */
851 PL_op = PL_op->op_next; 1139 PL_op = PL_op->op_next;
852 1140
853 /* inject a fake subroutine call to cctx_init */ 1141 /* inject a fake subroutine call to cctx_init */
854 prepare_cctx (aTHX_ (coro_cctx *)arg); 1142 cctx_prepare (aTHX_ (coro_cctx *)arg);
855 1143
1144 /* cctx_run is the alternative tail of transfer() */
1145 transfer_tail (aTHX);
1146
856 /* somebody or something will hit me for both perl_run and PL_restartop */ 1147 /* somebody or something will hit me for both perl_run and PL_restartop */
857 PL_restartop = PL_op; 1148 PL_restartop = PL_op;
858 perl_run (PL_curinterp); 1149 perl_run (PL_curinterp);
859 1150
860 /* 1151 /*
861 * If perl-run returns we assume exit() was being called or the coro 1152 * If perl-run returns we assume exit() was being called or the coro
862 * fell off the end, which seems to be the only valid (non-bug) 1153 * fell off the end, which seems to be the only valid (non-bug)
863 * reason for perl_run to return. We try to exit by jumping to the 1154 * reason for perl_run to return. We try to exit by jumping to the
864 * bootstrap-time "top" top_env, as we cannot restore the "main" 1155 * bootstrap-time "top" top_env, as we cannot restore the "main"
865 * coroutine as Coro has no such concept 1156 * coroutine as Coro has no such concept
866 */ 1157 */
867 PL_top_env = main_top_env; 1158 PL_top_env = main_top_env;
868 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1159 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1160 }
869} 1161}
870 1162
871static coro_cctx * 1163static coro_cctx *
872cctx_new () 1164cctx_new ()
873{ 1165{
874 coro_cctx *cctx; 1166 coro_cctx *cctx;
1167
1168 ++cctx_count;
1169 New (0, cctx, 1, coro_cctx);
1170
1171 cctx->gen = cctx_gen;
1172 cctx->flags = 0;
1173 cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
1174
1175 return cctx;
1176}
1177
1178/* create a new cctx only suitable as source */
1179static coro_cctx *
1180cctx_new_empty ()
1181{
1182 coro_cctx *cctx = cctx_new ();
1183
1184 cctx->sptr = 0;
1185 coro_create (&cctx->cctx, 0, 0, 0, 0);
1186
1187 return cctx;
1188}
1189
1190/* create a new cctx suitable as destination/running a perl interpreter */
1191static coro_cctx *
1192cctx_new_run ()
1193{
1194 coro_cctx *cctx = cctx_new ();
875 void *stack_start; 1195 void *stack_start;
876 size_t stack_size; 1196 size_t stack_size;
877 1197
878 ++cctx_count;
879
880 Newz (0, cctx, 1, coro_cctx);
881
882#if HAVE_MMAP 1198#if HAVE_MMAP
883
884 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1199 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
885 /* mmap supposedly does allocate-on-write for us */ 1200 /* mmap supposedly does allocate-on-write for us */
886 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1201 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
887 1202
888 if (cctx->sptr != (void *)-1) 1203 if (cctx->sptr != (void *)-1)
889 { 1204 {
890# if CORO_STACKGUARD 1205 #if CORO_STACKGUARD
891 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1206 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
892# endif 1207 #endif
893 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1208 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
894 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1209 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
895 cctx->flags |= CC_MAPPED; 1210 cctx->flags |= CC_MAPPED;
896 } 1211 }
897 else 1212 else
898#endif 1213#endif
899 { 1214 {
900 cctx->ssize = coro_stacksize * (long)sizeof (long); 1215 cctx->ssize = cctx_stacksize * (long)sizeof (long);
901 New (0, cctx->sptr, coro_stacksize, long); 1216 New (0, cctx->sptr, cctx_stacksize, long);
902 1217
903 if (!cctx->sptr) 1218 if (!cctx->sptr)
904 { 1219 {
905 perror ("FATAL: unable to allocate stack for coroutine"); 1220 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
906 _exit (EXIT_FAILURE); 1221 _exit (EXIT_FAILURE);
907 } 1222 }
908 1223
909 stack_start = cctx->sptr; 1224 stack_start = cctx->sptr;
910 stack_size = cctx->ssize; 1225 stack_size = cctx->ssize;
911 } 1226 }
912 1227
913 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1228 #if CORO_USE_VALGRIND
1229 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1230 #endif
1231
914 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); 1232 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
915 1233
916 return cctx; 1234 return cctx;
917} 1235}
918 1236
919static void 1237static void
… …
921{ 1239{
922 if (!cctx) 1240 if (!cctx)
923 return; 1241 return;
924 1242
925 --cctx_count; 1243 --cctx_count;
1244 coro_destroy (&cctx->cctx);
926 1245
1246 /* coro_transfer creates new, empty cctx's */
1247 if (cctx->sptr)
1248 {
927#if CORO_USE_VALGRIND 1249 #if CORO_USE_VALGRIND
928 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1250 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
929#endif 1251 #endif
930 1252
931#if HAVE_MMAP 1253#if HAVE_MMAP
932 if (cctx->flags & CC_MAPPED) 1254 if (cctx->flags & CC_MAPPED)
933 munmap (cctx->sptr, cctx->ssize); 1255 munmap (cctx->sptr, cctx->ssize);
934 else 1256 else
935#endif 1257#endif
936 Safefree (cctx->sptr); 1258 Safefree (cctx->sptr);
1259 }
937 1260
938 Safefree (cctx); 1261 Safefree (cctx);
939} 1262}
940 1263
941/* wether this cctx should be destructed */ 1264/* wether this cctx should be destructed */
942#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) 1265#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
943 1266
944static coro_cctx * 1267static coro_cctx *
945cctx_get (pTHX) 1268cctx_get (pTHX)
946{ 1269{
947 while (expect_true (cctx_first)) 1270 while (expect_true (cctx_first))
… …
954 return cctx; 1277 return cctx;
955 1278
956 cctx_destroy (cctx); 1279 cctx_destroy (cctx);
957 } 1280 }
958 1281
959 return cctx_new (); 1282 return cctx_new_run ();
960} 1283}
961 1284
962static void 1285static void
963cctx_put (coro_cctx *cctx) 1286cctx_put (coro_cctx *cctx)
964{ 1287{
1288 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1289
965 /* free another cctx if overlimit */ 1290 /* free another cctx if overlimit */
966 if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) 1291 if (expect_false (cctx_idle >= cctx_max_idle))
967 { 1292 {
968 coro_cctx *first = cctx_first; 1293 coro_cctx *first = cctx_first;
969 cctx_first = first->next; 1294 cctx_first = first->next;
970 --cctx_idle; 1295 --cctx_idle;
971 1296
… …
991 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1316 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
992 1317
993 if (expect_false (next->flags & CF_DESTROYED)) 1318 if (expect_false (next->flags & CF_DESTROYED))
994 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1319 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
995 1320
1321#if !PERL_VERSION_ATLEAST (5,10,0)
996 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1322 if (expect_false (PL_lex_state != LEX_NOTPARSING))
997 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1323 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
1324#endif
998 } 1325 }
999} 1326}
1000 1327
1001/* always use the TRANSFER macro */ 1328/* always use the TRANSFER macro */
1002static void NOINLINE 1329static void NOINLINE
1003transfer (pTHX_ struct coro *prev, struct coro *next) 1330transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1004{ 1331{
1005 dSTACKLEVEL; 1332 dSTACKLEVEL;
1006 1333
1007 /* sometimes transfer is only called to set idle_sp */ 1334 /* sometimes transfer is only called to set idle_sp */
1008 if (expect_false (!next)) 1335 if (expect_false (!next))
1009 { 1336 {
1010 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1337 ((coro_cctx *)prev)->idle_sp = stacklevel;
1011 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1338 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1012 } 1339 }
1013 else if (expect_true (prev != next)) 1340 else if (expect_true (prev != next))
1014 { 1341 {
1015 coro_cctx *prev__cctx; 1342 coro_cctx *prev__cctx;
1016 1343
1017 if (expect_false (prev->flags & CF_NEW)) 1344 if (expect_false (prev->flags & CF_NEW))
1018 { 1345 {
1019 /* create a new empty context */ 1346 /* create a new empty/source context */
1020 Newz (0, prev->cctx, 1, coro_cctx); 1347 prev->cctx = cctx_new_empty ();
1021 prev->flags &= ~CF_NEW; 1348 prev->flags &= ~CF_NEW;
1022 prev->flags |= CF_RUNNING; 1349 prev->flags |= CF_RUNNING;
1023 } 1350 }
1024 1351
1025 prev->flags &= ~CF_RUNNING; 1352 prev->flags &= ~CF_RUNNING;
1026 next->flags |= CF_RUNNING; 1353 next->flags |= CF_RUNNING;
1027 1354
1028 LOCK; 1355 LOCK;
1356
1357 /* first get rid of the old state */
1358 save_perl (aTHX_ prev);
1029 1359
1030 if (expect_false (next->flags & CF_NEW)) 1360 if (expect_false (next->flags & CF_NEW))
1031 { 1361 {
1032 /* need to start coroutine */ 1362 /* need to start coroutine */
1033 next->flags &= ~CF_NEW; 1363 next->flags &= ~CF_NEW;
1034 /* first get rid of the old state */
1035 save_perl (aTHX_ prev);
1036 /* setup coroutine call */ 1364 /* setup coroutine call */
1037 coro_setup (aTHX_ next); 1365 coro_setup (aTHX_ next);
1038 } 1366 }
1039 else 1367 else
1368 load_perl (aTHX_ next);
1369
1370 prev__cctx = prev->cctx;
1371
1372 /* possibly untie and reuse the cctx */
1373 if (expect_true (
1374 prev__cctx->idle_sp == stacklevel
1375 && !(prev__cctx->flags & CC_TRACE)
1376 && !force_cctx
1377 ))
1040 { 1378 {
1041 /* coroutine already started */
1042 save_perl (aTHX_ prev);
1043 load_perl (aTHX_ next);
1044 }
1045
1046 prev__cctx = prev->cctx;
1047
1048 /* possibly "free" the cctx */
1049 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1050 {
1051 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1379 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1052 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1380 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1053 1381
1054 prev->cctx = 0; 1382 prev->cctx = 0;
1055 1383
1056 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1384 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1057 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1385 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1058 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1386 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1387 if (!next->cctx)
1059 next->cctx = cctx_get (aTHX); 1388 next->cctx = cctx_get (aTHX);
1060 1389
1061 cctx_put (prev__cctx); 1390 cctx_put (prev__cctx);
1062 } 1391 }
1063 1392
1064 ++next->usecount; 1393 ++next->usecount;
1065 1394
1066 if (expect_true (!next->cctx)) 1395 if (expect_true (!next->cctx))
1067 next->cctx = cctx_get (aTHX); 1396 next->cctx = cctx_get (aTHX);
1397
1398 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1399 transfer_next = next;
1068 1400
1069 if (expect_false (prev__cctx != next->cctx)) 1401 if (expect_false (prev__cctx != next->cctx))
1070 { 1402 {
1071 prev__cctx->top_env = PL_top_env; 1403 prev__cctx->top_env = PL_top_env;
1072 PL_top_env = next->cctx->top_env; 1404 PL_top_env = next->cctx->top_env;
1073 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1405 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1074 } 1406 }
1075 1407
1076 free_coro_mortal (aTHX); 1408 transfer_tail (aTHX);
1077 UNLOCK;
1078
1079 if (expect_false (prev->throw || next->throw))
1080 {
1081 struct coro *coro = SvSTATE (coro_current);
1082
1083 if (coro->throw)
1084 {
1085 SV *exception = coro->throw;
1086 coro->throw = 0;
1087 sv_setsv (ERRSV, exception);
1088 croak (0);
1089 }
1090 }
1091 } 1409 }
1092} 1410}
1093 1411
1094struct transfer_args
1095{
1096 struct coro *prev, *next;
1097};
1098
1099#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1412#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1100#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1413#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1101 1414
1102/** high level stuff ********************************************************/ 1415/** high level stuff ********************************************************/
1103 1416
1104static int 1417static int
… …
1128 croak ("FATAL: tried to destroy currently running coroutine"); 1441 croak ("FATAL: tried to destroy currently running coroutine");
1129 1442
1130 save_perl (aTHX_ &temp); 1443 save_perl (aTHX_ &temp);
1131 load_perl (aTHX_ coro); 1444 load_perl (aTHX_ coro);
1132 1445
1133 coro_destroy (aTHX_ coro); 1446 coro_destruct (aTHX_ coro);
1134 1447
1135 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1448 load_perl (aTHX_ &temp);
1136 1449
1137 coro->mainstack = 0; 1450 coro->slot = 0;
1138 } 1451 }
1139 1452
1140 cctx_destroy (coro->cctx); 1453 cctx_destroy (coro->cctx);
1141 SvREFCNT_dec (coro->args); 1454 SvREFCNT_dec (coro->args);
1142 1455
… …
1198{ 1511{
1199 dTHX; 1512 dTHX;
1200 struct transfer_args ta; 1513 struct transfer_args ta;
1201 1514
1202 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1515 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1203 TRANSFER (ta); 1516 TRANSFER (ta, 1);
1204} 1517}
1205 1518
1206/** Coro ********************************************************************/ 1519/** Coro ********************************************************************/
1207 1520
1208static void 1521static void
… …
1210{ 1523{
1211 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1524 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1212} 1525}
1213 1526
1214static SV * 1527static SV *
1215coro_deq (pTHX_ int min_prio) 1528coro_deq (pTHX)
1216{ 1529{
1217 int prio = PRIO_MAX - PRIO_MIN; 1530 int prio;
1218 1531
1219 min_prio -= PRIO_MIN;
1220 if (min_prio < 0)
1221 min_prio = 0;
1222
1223 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 1532 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1224 if (AvFILLp (coro_ready [prio]) >= 0) 1533 if (AvFILLp (coro_ready [prio]) >= 0)
1225 return av_shift (coro_ready [prio]); 1534 return av_shift (coro_ready [prio]);
1226 1535
1227 return 0; 1536 return 0;
1228} 1537}
… …
1230static int 1539static int
1231api_ready (SV *coro_sv) 1540api_ready (SV *coro_sv)
1232{ 1541{
1233 dTHX; 1542 dTHX;
1234 struct coro *coro; 1543 struct coro *coro;
1544 SV *sv_hook;
1545 void (*xs_hook)(void);
1235 1546
1236 if (SvROK (coro_sv)) 1547 if (SvROK (coro_sv))
1237 coro_sv = SvRV (coro_sv); 1548 coro_sv = SvRV (coro_sv);
1238 1549
1239 coro = SvSTATE (coro_sv); 1550 coro = SvSTATE (coro_sv);
… …
1242 return 0; 1553 return 0;
1243 1554
1244 coro->flags |= CF_READY; 1555 coro->flags |= CF_READY;
1245 1556
1246 LOCK; 1557 LOCK;
1558
1559 sv_hook = coro_nready ? 0 : coro_readyhook;
1560 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1561
1247 coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); 1562 coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1248 ++coro_nready; 1563 ++coro_nready;
1564
1249 UNLOCK; 1565 UNLOCK;
1566
1567 if (sv_hook)
1568 {
1569 dSP;
1570
1571 ENTER;
1572 SAVETMPS;
1573
1574 PUSHMARK (SP);
1575 PUTBACK;
1576 call_sv (sv_hook, G_DISCARD);
1577 SPAGAIN;
1578
1579 FREETMPS;
1580 LEAVE;
1581 }
1582
1583 if (xs_hook)
1584 xs_hook ();
1250 1585
1251 return 1; 1586 return 1;
1252} 1587}
1253 1588
1254static int 1589static int
1255api_is_ready (SV *coro_sv) 1590api_is_ready (SV *coro_sv)
1256{ 1591{
1257 dTHX; 1592 dTHX;
1593
1258 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1594 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1259} 1595}
1260 1596
1261static void 1597INLINE void
1262prepare_schedule (pTHX_ struct transfer_args *ta) 1598prepare_schedule (pTHX_ struct transfer_args *ta)
1263{ 1599{
1264 SV *prev_sv, *next_sv; 1600 SV *prev_sv, *next_sv;
1265 1601
1266 for (;;) 1602 for (;;)
1267 { 1603 {
1268 LOCK; 1604 LOCK;
1269 next_sv = coro_deq (aTHX_ PRIO_MIN); 1605 next_sv = coro_deq (aTHX);
1270 1606
1271 /* nothing to schedule: call the idle handler */ 1607 /* nothing to schedule: call the idle handler */
1272 if (expect_false (!next_sv)) 1608 if (expect_false (!next_sv))
1273 { 1609 {
1274 dSP; 1610 dSP;
… …
1278 SAVETMPS; 1614 SAVETMPS;
1279 1615
1280 PUSHMARK (SP); 1616 PUSHMARK (SP);
1281 PUTBACK; 1617 PUTBACK;
1282 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1618 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1619 SPAGAIN;
1283 1620
1284 FREETMPS; 1621 FREETMPS;
1285 LEAVE; 1622 LEAVE;
1286 continue; 1623 continue;
1287 } 1624 }
… …
1291 /* cannot transfer to destroyed coros, skip and look for next */ 1628 /* cannot transfer to destroyed coros, skip and look for next */
1292 if (expect_false (ta->next->flags & CF_DESTROYED)) 1629 if (expect_false (ta->next->flags & CF_DESTROYED))
1293 { 1630 {
1294 UNLOCK; 1631 UNLOCK;
1295 SvREFCNT_dec (next_sv); 1632 SvREFCNT_dec (next_sv);
1296 /* coro_nready is already taken care of by destroy */ 1633 /* coro_nready has already been taken care of by destroy */
1297 continue; 1634 continue;
1298 } 1635 }
1299 1636
1300 --coro_nready; 1637 --coro_nready;
1301 UNLOCK; 1638 UNLOCK;
… …
1304 1641
1305 /* free this only after the transfer */ 1642 /* free this only after the transfer */
1306 prev_sv = SvRV (coro_current); 1643 prev_sv = SvRV (coro_current);
1307 ta->prev = SvSTATE (prev_sv); 1644 ta->prev = SvSTATE (prev_sv);
1308 TRANSFER_CHECK (*ta); 1645 TRANSFER_CHECK (*ta);
1309 assert (ta->next->flags & CF_READY); 1646 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1310 ta->next->flags &= ~CF_READY; 1647 ta->next->flags &= ~CF_READY;
1311 SvRV_set (coro_current, next_sv); 1648 SvRV_set (coro_current, next_sv);
1312 1649
1313 LOCK; 1650 LOCK;
1314 free_coro_mortal (aTHX); 1651 free_coro_mortal (aTHX);
1315 coro_mortal = prev_sv; 1652 coro_mortal = prev_sv;
1316 UNLOCK; 1653 UNLOCK;
1317} 1654}
1318 1655
1319static void 1656INLINE void
1320prepare_cede (pTHX_ struct transfer_args *ta) 1657prepare_cede (pTHX_ struct transfer_args *ta)
1321{ 1658{
1322 api_ready (coro_current); 1659 api_ready (coro_current);
1323 prepare_schedule (aTHX_ ta); 1660 prepare_schedule (aTHX_ ta);
1324} 1661}
1325 1662
1326static int 1663static void
1327prepare_cede_notself (pTHX_ struct transfer_args *ta) 1664prepare_cede_notself (pTHX_ struct transfer_args *ta)
1328{ 1665{
1666 SV *prev = SvRV (coro_current);
1667
1329 if (coro_nready) 1668 if (coro_nready)
1330 { 1669 {
1331 SV *prev = SvRV (coro_current);
1332 prepare_schedule (aTHX_ ta); 1670 prepare_schedule (aTHX_ ta);
1333 api_ready (prev); 1671 api_ready (prev);
1672 }
1673 else
1674 ta->prev = ta->next = SvSTATE (prev);
1675}
1676
1677static void
1678api_schedule (void)
1679{
1680 dTHX;
1681 struct transfer_args ta;
1682
1683 prepare_schedule (aTHX_ &ta);
1684 TRANSFER (ta, 1);
1685}
1686
1687static int
1688api_cede (void)
1689{
1690 dTHX;
1691 struct transfer_args ta;
1692
1693 prepare_cede (aTHX_ &ta);
1694
1695 if (expect_true (ta.prev != ta.next))
1696 {
1697 TRANSFER (ta, 1);
1334 return 1; 1698 return 1;
1335 } 1699 }
1336 else 1700 else
1337 return 0; 1701 return 0;
1338} 1702}
1339 1703
1340static void
1341api_schedule (void)
1342{
1343 dTHX;
1344 struct transfer_args ta;
1345
1346 prepare_schedule (aTHX_ &ta);
1347 TRANSFER (ta);
1348}
1349
1350static int 1704static int
1351api_cede (void) 1705api_cede_notself (void)
1352{ 1706{
1707 if (coro_nready)
1708 {
1353 dTHX; 1709 dTHX;
1354 struct transfer_args ta; 1710 struct transfer_args ta;
1355 1711
1356 prepare_cede (aTHX_ &ta); 1712 prepare_cede_notself (aTHX_ &ta);
1357
1358 if (expect_true (ta.prev != ta.next))
1359 {
1360 TRANSFER (ta); 1713 TRANSFER (ta, 1);
1361 return 1; 1714 return 1;
1362 } 1715 }
1363 else 1716 else
1364 return 0; 1717 return 0;
1365} 1718}
1366 1719
1367static int
1368api_cede_notself (void)
1369{
1370 dTHX;
1371 struct transfer_args ta;
1372
1373 if (prepare_cede_notself (aTHX_ &ta))
1374 {
1375 TRANSFER (ta);
1376 return 1;
1377 }
1378 else
1379 return 0;
1380}
1381
1382static void 1720static void
1383api_trace (SV *coro_sv, int flags) 1721api_trace (SV *coro_sv, int flags)
1384{ 1722{
1385 dTHX; 1723 dTHX;
1386 struct coro *coro = SvSTATE (coro_sv); 1724 struct coro *coro = SvSTATE (coro_sv);
1387 1725
1388 if (flags & CC_TRACE) 1726 if (flags & CC_TRACE)
1389 { 1727 {
1390 if (!coro->cctx) 1728 if (!coro->cctx)
1391 coro->cctx = cctx_new (); 1729 coro->cctx = cctx_new_run ();
1392 else if (!(coro->cctx->flags & CC_TRACE)) 1730 else if (!(coro->cctx->flags & CC_TRACE))
1393 croak ("cannot enable tracing on coroutine with custom stack"); 1731 croak ("cannot enable tracing on coroutine with custom stack");
1394 1732
1395 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1733 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1396 } 1734 }
… …
1399 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); 1737 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1400 1738
1401 if (coro->flags & CF_RUNNING) 1739 if (coro->flags & CF_RUNNING)
1402 PL_runops = RUNOPS_DEFAULT; 1740 PL_runops = RUNOPS_DEFAULT;
1403 else 1741 else
1404 coro->runops = RUNOPS_DEFAULT; 1742 coro->slot->runops = RUNOPS_DEFAULT;
1743 }
1744}
1745
1746#if 0
1747static int
1748coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
1749{
1750 AV *padlist;
1751 AV *av = (AV *)mg->mg_obj;
1752
1753 abort ();
1754
1755 return 0;
1756}
1757
1758static MGVTBL coro_gensub_vtbl = {
1759 0, 0, 0, 0,
1760 coro_gensub_free
1761};
1762#endif
1763
1764/*****************************************************************************/
1765/* PerlIO::cede */
1766
1767typedef struct
1768{
1769 PerlIOBuf base;
1770 NV next, every;
1771} PerlIOCede;
1772
1773static IV
1774PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
1775{
1776 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1777
1778 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
1779 self->next = nvtime () + self->every;
1780
1781 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
1782}
1783
1784static SV *
1785PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
1786{
1787 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1788
1789 return newSVnv (self->every);
1790}
1791
1792static IV
1793PerlIOCede_flush (pTHX_ PerlIO *f)
1794{
1795 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1796 double now = nvtime ();
1797
1798 if (now >= self->next)
1405 } 1799 {
1800 api_cede ();
1801 self->next = now + self->every;
1802 }
1803
1804 return PerlIOBuf_flush (aTHX_ f);
1805}
1806
1807static PerlIO_funcs PerlIO_cede =
1808{
1809 sizeof(PerlIO_funcs),
1810 "cede",
1811 sizeof(PerlIOCede),
1812 PERLIO_K_DESTRUCT | PERLIO_K_RAW,
1813 PerlIOCede_pushed,
1814 PerlIOBuf_popped,
1815 PerlIOBuf_open,
1816 PerlIOBase_binmode,
1817 PerlIOCede_getarg,
1818 PerlIOBase_fileno,
1819 PerlIOBuf_dup,
1820 PerlIOBuf_read,
1821 PerlIOBuf_unread,
1822 PerlIOBuf_write,
1823 PerlIOBuf_seek,
1824 PerlIOBuf_tell,
1825 PerlIOBuf_close,
1826 PerlIOCede_flush,
1827 PerlIOBuf_fill,
1828 PerlIOBase_eof,
1829 PerlIOBase_error,
1830 PerlIOBase_clearerr,
1831 PerlIOBase_setlinebuf,
1832 PerlIOBuf_get_base,
1833 PerlIOBuf_bufsiz,
1834 PerlIOBuf_get_ptr,
1835 PerlIOBuf_get_cnt,
1836 PerlIOBuf_set_ptrcnt,
1837};
1838
1839/*****************************************************************************/
1840
1841static const CV *slf_cv; /* for quick consistency check */
1842
1843static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1844static SV *slf_arg0;
1845static SV *slf_arg1;
1846
1847/* this restores the stack in the case we patched the entersub, to */
1848/* recreate the stack frame as perl will on following calls */
1849/* since entersub cleared the stack */
1850static OP *
1851pp_restore (pTHX)
1852{
1853 dSP;
1854
1855 PUSHMARK (SP);
1856
1857 EXTEND (SP, 3);
1858 if (slf_arg0) PUSHs (sv_2mortal (slf_arg0));
1859 if (slf_arg1) PUSHs (sv_2mortal (slf_arg1));
1860 PUSHs ((SV *)CvGV (slf_cv));
1861
1862 RETURNOP (slf_restore.op_first);
1863}
1864
1865#define OPpENTERSUB_SLF 15 /* the part of op_private entersub hopefully doesn't use */
1866
1867/* declare prototype */
1868XS(XS_Coro__State__set_stacklevel);
1869
1870/*
1871 * these not obviously related functions are all rolled into one
1872 * function to increase chances that they all will call transfer with the same
1873 * stack offset
1874 * SLF stands for "schedule-like-function".
1875 */
1876static OP *
1877pp_slf (pTHX)
1878{
1879 dSP;
1880 struct transfer_args ta;
1881 SV **arg = PL_stack_base + TOPMARK + 1;
1882 int items = SP - arg; /* args without function object */
1883
1884 /* do a quick consistency check on the "function" object, and if it isn't */
1885 /* for us, divert to the real entersub */
1886 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1887 return PL_ppaddr[OP_ENTERSUB](aTHX);
1888
1889 /* pop args */
1890 SP = PL_stack_base + POPMARK;
1891
1892 if (!(PL_op->op_flags & OPf_STACKED))
1893 {
1894 /* ampersand-form of call, use @_ instead of stack */
1895 AV *av = GvAV (PL_defgv);
1896 arg = AvARRAY (av);
1897 items = AvFILLp (av) + 1;
1898 }
1899
1900 PUTBACK;
1901 switch (PL_op->op_private & OPpENTERSUB_SLF)
1902 {
1903 case 0:
1904 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1905 break;
1906
1907 case 1:
1908 if (items != 2)
1909 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1910
1911 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1912 break;
1913
1914 case 2:
1915 prepare_schedule (aTHX_ &ta);
1916 break;
1917
1918 case 3:
1919 prepare_cede (aTHX_ &ta);
1920 break;
1921
1922 case 4:
1923 prepare_cede_notself (aTHX_ &ta);
1924 break;
1925
1926 case 5:
1927 abort ();
1928
1929 default:
1930 abort ();
1931 }
1932
1933 TRANSFER (ta, 0);
1934 SPAGAIN;
1935
1936 PUTBACK;
1937 SLF_TAIL;
1938 SPAGAIN;
1939 RETURN;
1940}
1941
1942static void
1943coro_slf_patch (pTHX_ CV *cv, int ix, SV **args, int items)
1944{
1945 assert (("FATAL: SLF call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_slf));
1946
1947 assert (("FATAL: SLF call with illegal CV value", CvGV (cv)));
1948 slf_cv = cv;
1949
1950 /* we patch the op, and then re-run the whole call */
1951 /* we have to put the same argument on the stack for this to work */
1952 /* and this will be done by pp_restore */
1953 slf_restore.op_next = (OP *)&slf_restore;
1954 slf_restore.op_type = OP_NULL;
1955 slf_restore.op_ppaddr = pp_restore;
1956 slf_restore.op_first = PL_op;
1957
1958 slf_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0;
1959 slf_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0;
1960
1961 PL_op->op_ppaddr = pp_slf;
1962 PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SLF | ix; /* we potentially share our private flags with entersub */
1963
1964 PL_op = (OP *)&slf_restore;
1406} 1965}
1407 1966
1408MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 1967MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1409 1968
1410PROTOTYPES: DISABLE 1969PROTOTYPES: DISABLE
1411 1970
1412BOOT: 1971BOOT:
1413{ 1972{
1414#ifdef USE_ITHREADS 1973#ifdef USE_ITHREADS
1415 MUTEX_INIT (&coro_mutex); 1974 MUTEX_INIT (&coro_lock);
1975# if CORO_PTHREAD
1976 coro_thx = PERL_GET_CONTEXT;
1977# endif
1416#endif 1978#endif
1417 BOOT_PAGESIZE; 1979 BOOT_PAGESIZE;
1418 1980
1419 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 1981 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1420 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 1982 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1983
1984 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1985 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1986 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1987
1988 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1989 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1990 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1421 1991
1422 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1992 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1423 1993
1424 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); 1994 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1425 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); 1995 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
… …
1430 main_top_env = PL_top_env; 2000 main_top_env = PL_top_env;
1431 2001
1432 while (main_top_env->je_prev) 2002 while (main_top_env->je_prev)
1433 main_top_env = main_top_env->je_prev; 2003 main_top_env = main_top_env->je_prev;
1434 2004
1435 coroapi.ver = CORO_API_VERSION; 2005 coroapi.ver = CORO_API_VERSION;
2006 coroapi.rev = CORO_API_REVISION;
1436 coroapi.transfer = api_transfer; 2007 coroapi.transfer = api_transfer;
2008
2009 {
2010 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2011
2012 if (!svp) croak ("Time::HiRes is required");
2013 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2014
2015 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2016 }
1437 2017
1438 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2018 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1439} 2019}
1440 2020
1441SV * 2021SV *
1442new (char *klass, ...) 2022new (char *klass, ...)
1443 CODE: 2023 CODE:
1444{ 2024{
1445 struct coro *coro; 2025 struct coro *coro;
2026 MAGIC *mg;
1446 HV *hv; 2027 HV *hv;
1447 int i; 2028 int i;
1448 2029
1449 Newz (0, coro, 1, struct coro); 2030 Newz (0, coro, 1, struct coro);
1450 coro->args = newAV (); 2031 coro->args = newAV ();
… …
1453 if (coro_first) coro_first->prev = coro; 2034 if (coro_first) coro_first->prev = coro;
1454 coro->next = coro_first; 2035 coro->next = coro_first;
1455 coro_first = coro; 2036 coro_first = coro;
1456 2037
1457 coro->hv = hv = newHV (); 2038 coro->hv = hv = newHV ();
1458 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 2039 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2040 mg->mg_flags |= MGf_DUP;
1459 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2041 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1460 2042
1461 av_extend (coro->args, items - 1); 2043 av_extend (coro->args, items - 1);
1462 for (i = 1; i < items; i++) 2044 for (i = 1; i < items; i++)
1463 av_push (coro->args, newSVsv (ST (i))); 2045 av_push (coro->args, newSVsv (ST (i)));
1464} 2046}
1465 OUTPUT: 2047 OUTPUT:
1466 RETVAL 2048 RETVAL
1467 2049
1468# these not obviously related functions are all rolled into the same xs
1469# function to increase chances that they all will call transfer with the same
1470# stack offset
1471void 2050void
1472_set_stacklevel (...) 2051_set_stacklevel (...)
1473 ALIAS: 2052 ALIAS:
1474 Coro::State::transfer = 1 2053 Coro::State::transfer = 1
1475 Coro::schedule = 2 2054 Coro::schedule = 2
1476 Coro::cede = 3 2055 Coro::cede = 3
1477 Coro::cede_notself = 4 2056 Coro::cede_notself = 4
1478 CODE: 2057 CODE:
1479{ 2058 coro_slf_patch (aTHX_ cv, ix, &ST (0), items);
1480 struct transfer_args ta;
1481
1482 switch (ix)
1483 {
1484 case 0:
1485 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1486 ta.next = 0;
1487 break;
1488
1489 case 1:
1490 if (items != 2)
1491 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1492
1493 prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1494 break;
1495
1496 case 2:
1497 prepare_schedule (aTHX_ &ta);
1498 break;
1499
1500 case 3:
1501 prepare_cede (aTHX_ &ta);
1502 break;
1503
1504 case 4:
1505 if (!prepare_cede_notself (aTHX_ &ta))
1506 XSRETURN_EMPTY;
1507
1508 break;
1509 }
1510
1511 BARRIER;
1512 TRANSFER (ta);
1513
1514 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1515 XSRETURN_YES;
1516}
1517 2059
1518bool 2060bool
1519_destroy (SV *coro_sv) 2061_destroy (SV *coro_sv)
1520 CODE: 2062 CODE:
1521 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2063 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1522 OUTPUT: 2064 OUTPUT:
1523 RETVAL 2065 RETVAL
1524 2066
1525void 2067void
1526_exit (code) 2068_exit (int code)
1527 int code
1528 PROTOTYPE: $ 2069 PROTOTYPE: $
1529 CODE: 2070 CODE:
1530 _exit (code); 2071 _exit (code);
1531 2072
1532int 2073int
1533cctx_stacksize (int new_stacksize = 0) 2074cctx_stacksize (int new_stacksize = 0)
1534 CODE: 2075 CODE:
1535 RETVAL = coro_stacksize; 2076 RETVAL = cctx_stacksize;
1536 if (new_stacksize) 2077 if (new_stacksize)
2078 {
1537 coro_stacksize = new_stacksize; 2079 cctx_stacksize = new_stacksize;
2080 ++cctx_gen;
2081 }
2082 OUTPUT:
2083 RETVAL
2084
2085int
2086cctx_max_idle (int max_idle = 0)
2087 CODE:
2088 RETVAL = cctx_max_idle;
2089 if (max_idle > 1)
2090 cctx_max_idle = max_idle;
1538 OUTPUT: 2091 OUTPUT:
1539 RETVAL 2092 RETVAL
1540 2093
1541int 2094int
1542cctx_count () 2095cctx_count ()
… …
1566call (Coro::State coro, SV *coderef) 2119call (Coro::State coro, SV *coderef)
1567 ALIAS: 2120 ALIAS:
1568 eval = 1 2121 eval = 1
1569 CODE: 2122 CODE:
1570{ 2123{
1571 if (coro->mainstack) 2124 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
1572 { 2125 {
1573 struct coro temp; 2126 struct coro temp;
1574 Zero (&temp, 1, struct coro);
1575 2127
1576 if (!(coro->flags & CF_RUNNING)) 2128 if (!(coro->flags & CF_RUNNING))
1577 { 2129 {
2130 PUTBACK;
1578 save_perl (aTHX_ &temp); 2131 save_perl (aTHX_ &temp);
1579 load_perl (aTHX_ coro); 2132 load_perl (aTHX_ coro);
1580 } 2133 }
1581 2134
1582 { 2135 {
1583 dSP; 2136 dSP;
1584 ENTER; 2137 ENTER;
1585 SAVETMPS; 2138 SAVETMPS;
2139 PUTBACK;
2140 PUSHSTACK;
1586 PUSHMARK (SP); 2141 PUSHMARK (SP);
1587 PUTBACK; 2142
1588 if (ix) 2143 if (ix)
1589 eval_sv (coderef, 0); 2144 eval_sv (coderef, 0);
1590 else 2145 else
1591 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 2146 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2147
2148 POPSTACK;
1592 SPAGAIN; 2149 SPAGAIN;
1593 FREETMPS; 2150 FREETMPS;
1594 LEAVE; 2151 LEAVE;
1595 PUTBACK; 2152 PUTBACK;
1596 } 2153 }
1597 2154
1598 if (!(coro->flags & CF_RUNNING)) 2155 if (!(coro->flags & CF_RUNNING))
1599 { 2156 {
1600 save_perl (aTHX_ coro); 2157 save_perl (aTHX_ coro);
1601 load_perl (aTHX_ &temp); 2158 load_perl (aTHX_ &temp);
2159 SPAGAIN;
1602 } 2160 }
1603 } 2161 }
1604} 2162}
1605 2163
1606SV * 2164SV *
… …
1615 RETVAL = boolSV (coro->flags & ix); 2173 RETVAL = boolSV (coro->flags & ix);
1616 OUTPUT: 2174 OUTPUT:
1617 RETVAL 2175 RETVAL
1618 2176
1619void 2177void
2178throw (Coro::State self, SV *throw = &PL_sv_undef)
2179 PROTOTYPE: $;$
2180 CODE:
2181 SvREFCNT_dec (self->throw);
2182 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2183
2184void
1620api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2185api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1621 2186
1622SV * 2187SV *
1623has_stack (Coro::State coro) 2188has_cctx (Coro::State coro)
1624 PROTOTYPE: $ 2189 PROTOTYPE: $
1625 CODE: 2190 CODE:
1626 RETVAL = boolSV (!!coro->cctx); 2191 RETVAL = boolSV (!!coro->cctx);
1627 OUTPUT: 2192 OUTPUT:
1628 RETVAL 2193 RETVAL
… …
1633 CODE: 2198 CODE:
1634 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; 2199 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1635 OUTPUT: 2200 OUTPUT:
1636 RETVAL 2201 RETVAL
1637 2202
1638IV 2203UV
1639rss (Coro::State coro) 2204rss (Coro::State coro)
1640 PROTOTYPE: $ 2205 PROTOTYPE: $
1641 ALIAS: 2206 ALIAS:
1642 usecount = 1 2207 usecount = 1
1643 CODE: 2208 CODE:
… …
1647 case 1: RETVAL = coro->usecount; break; 2212 case 1: RETVAL = coro->usecount; break;
1648 } 2213 }
1649 OUTPUT: 2214 OUTPUT:
1650 RETVAL 2215 RETVAL
1651 2216
2217void
2218force_cctx ()
2219 CODE:
2220 struct coro *coro = SvSTATE (coro_current);
2221 coro->cctx->idle_sp = 0;
2222
2223void
2224swap_defsv (Coro::State self)
2225 PROTOTYPE: $
2226 ALIAS:
2227 swap_defav = 1
2228 CODE:
2229 if (!self->slot)
2230 croak ("cannot swap state with coroutine that has no saved state");
2231 else
2232 {
2233 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
2234 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2235
2236 SV *tmp = *src; *src = *dst; *dst = tmp;
2237 }
1652 2238
1653MODULE = Coro::State PACKAGE = Coro 2239MODULE = Coro::State PACKAGE = Coro
1654 2240
1655BOOT: 2241BOOT:
1656{ 2242{
1657 int i; 2243 int i;
1658 2244
1659 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1660 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1661 av_async_pool = get_av ("Coro::async_pool", TRUE); 2245 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2246 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2247 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1662 2248
1663 coro_current = get_sv ("Coro::current", FALSE); 2249 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1664 SvREADONLY_on (coro_current); 2250 SvREADONLY_on (coro_current);
1665 2251
1666 coro_stash = gv_stashpv ("Coro", TRUE); 2252 coro_stash = gv_stashpv ("Coro", TRUE);
1667 2253
1668 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 2254 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1669 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 2255 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1670 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 2256 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1671 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 2257 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
… …
1674 2260
1675 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 2261 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1676 coro_ready[i] = newAV (); 2262 coro_ready[i] = newAV ();
1677 2263
1678 { 2264 {
1679 SV *sv = perl_get_sv("Coro::API", 1); 2265 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1680 2266
1681 coroapi.schedule = api_schedule; 2267 coroapi.schedule = api_schedule;
1682 coroapi.cede = api_cede; 2268 coroapi.cede = api_cede;
1683 coroapi.cede_notself = api_cede_notself; 2269 coroapi.cede_notself = api_cede_notself;
1684 coroapi.ready = api_ready; 2270 coroapi.ready = api_ready;
… …
1695void 2281void
1696_set_current (SV *current) 2282_set_current (SV *current)
1697 PROTOTYPE: $ 2283 PROTOTYPE: $
1698 CODE: 2284 CODE:
1699 SvREFCNT_dec (SvRV (coro_current)); 2285 SvREFCNT_dec (SvRV (coro_current));
1700 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); 2286 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
2287
2288void
2289_set_readyhook (SV *hook)
2290 PROTOTYPE: $
2291 CODE:
2292 LOCK;
2293 SvREFCNT_dec (coro_readyhook);
2294 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2295 UNLOCK;
1701 2296
1702int 2297int
1703prio (Coro::State coro, int newprio = 0) 2298prio (Coro::State coro, int newprio = 0)
1704 ALIAS: 2299 ALIAS:
1705 nice = 1 2300 nice = 1
… …
1735 CODE: 2330 CODE:
1736 RETVAL = coro_nready; 2331 RETVAL = coro_nready;
1737 OUTPUT: 2332 OUTPUT:
1738 RETVAL 2333 RETVAL
1739 2334
1740void
1741throw (Coro::State self, SV *throw = &PL_sv_undef)
1742 PROTOTYPE: $;$
1743 CODE:
1744 SvREFCNT_dec (self->throw);
1745 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1746
1747# for async_pool speedup 2335# for async_pool speedup
1748void 2336void
1749_pool_1 (SV *cb) 2337_pool_1 (SV *cb)
1750 CODE: 2338 CODE:
1751{ 2339{
… …
1755 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); 2343 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1756 AV *invoke_av; 2344 AV *invoke_av;
1757 int i, len; 2345 int i, len;
1758 2346
1759 if (!invoke) 2347 if (!invoke)
2348 {
2349 SV *old = PL_diehook;
2350 PL_diehook = 0;
2351 SvREFCNT_dec (old);
1760 croak ("\3async_pool terminate\2\n"); 2352 croak ("\3async_pool terminate\2\n");
2353 }
1761 2354
1762 SvREFCNT_dec (coro->saved_deffh); 2355 SvREFCNT_dec (coro->saved_deffh);
1763 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); 2356 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1764 2357
1765 hv_store (hv, "desc", sizeof ("desc") - 1, 2358 hv_store (hv, "desc", sizeof ("desc") - 1,
1766 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); 2359 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1767 2360
1768 invoke_av = (AV *)SvRV (invoke); 2361 invoke_av = (AV *)SvRV (invoke);
… …
1772 2365
1773 if (len > 0) 2366 if (len > 0)
1774 { 2367 {
1775 av_fill (defav, len - 1); 2368 av_fill (defav, len - 1);
1776 for (i = 0; i < len; ++i) 2369 for (i = 0; i < len; ++i)
1777 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); 2370 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1778 } 2371 }
1779 2372
1780 SvREFCNT_dec (invoke); 2373 SvREFCNT_dec (invoke);
1781} 2374}
1782 2375
… …
1789 sv_setsv (cb, &PL_sv_undef); 2382 sv_setsv (cb, &PL_sv_undef);
1790 2383
1791 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2384 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1792 coro->saved_deffh = 0; 2385 coro->saved_deffh = 0;
1793 2386
1794 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 2387 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1795 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2388 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2389 {
2390 SV *old = PL_diehook;
2391 PL_diehook = 0;
2392 SvREFCNT_dec (old);
1796 croak ("\3async_pool terminate\2\n"); 2393 croak ("\3async_pool terminate\2\n");
2394 }
1797 2395
1798 av_clear (GvAV (PL_defgv)); 2396 av_clear (GvAV (PL_defgv));
1799 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 2397 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1800 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 2398 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1801 2399
… …
1805 api_trace (coro_current, 0); 2403 api_trace (coro_current, 0);
1806 2404
1807 av_push (av_async_pool, newSVsv (coro_current)); 2405 av_push (av_async_pool, newSVsv (coro_current));
1808} 2406}
1809 2407
2408#if 0
2409
2410void
2411_generator_call (...)
2412 PROTOTYPE: @
2413 PPCODE:
2414 fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
2415 xxxx
2416 abort ();
2417
2418SV *
2419gensub (SV *sub, ...)
2420 PROTOTYPE: &;@
2421 CODE:
2422{
2423 struct coro *coro;
2424 MAGIC *mg;
2425 CV *xcv;
2426 CV *ncv = (CV *)newSV_type (SVt_PVCV);
2427 int i;
2428
2429 CvGV (ncv) = CvGV (cv);
2430 CvFILE (ncv) = CvFILE (cv);
2431
2432 Newz (0, coro, 1, struct coro);
2433 coro->args = newAV ();
2434 coro->flags = CF_NEW;
2435
2436 av_extend (coro->args, items - 1);
2437 for (i = 1; i < items; i++)
2438 av_push (coro->args, newSVsv (ST (i)));
2439
2440 CvISXSUB_on (ncv);
2441 CvXSUBANY (ncv).any_ptr = (void *)coro;
2442
2443 xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
2444
2445 CvXSUB (ncv) = CvXSUB (xcv);
2446 CvANON_on (ncv);
2447
2448 mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
2449 RETVAL = newRV_noinc ((SV *)ncv);
2450}
2451 OUTPUT:
2452 RETVAL
2453
2454#endif
2455
1810 2456
1811MODULE = Coro::State PACKAGE = Coro::AIO 2457MODULE = Coro::State PACKAGE = Coro::AIO
1812 2458
1813SV * 2459void
1814_get_state () 2460_get_state (SV *self)
1815 CODE: 2461 PPCODE:
1816{ 2462{
1817 struct io_state *data; 2463 AV *defav = GvAV (PL_defgv);
1818 2464 AV *av = newAV ();
2465 int i;
1819 RETVAL = newSV (sizeof (struct io_state)); 2466 SV *data_sv = newSV (sizeof (struct io_state));
1820 data = (struct io_state *)SvPVX (RETVAL); 2467 struct io_state *data = (struct io_state *)SvPVX (data_sv);
1821 SvCUR_set (RETVAL, sizeof (struct io_state)); 2468 SvCUR_set (data_sv, sizeof (struct io_state));
1822 SvPOK_only (RETVAL); 2469 SvPOK_only (data_sv);
1823 2470
1824 data->errorno = errno; 2471 data->errorno = errno;
1825 data->laststype = PL_laststype; 2472 data->laststype = PL_laststype;
1826 data->laststatval = PL_laststatval; 2473 data->laststatval = PL_laststatval;
1827 data->statcache = PL_statcache; 2474 data->statcache = PL_statcache;
2475
2476 av_extend (av, AvFILLp (defav) + 1 + 1);
2477
2478 for (i = 0; i <= AvFILLp (defav); ++i)
2479 av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
2480
2481 av_push (av, data_sv);
2482
2483 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
2484
2485 api_ready (self);
1828} 2486}
1829 OUTPUT:
1830 RETVAL
1831 2487
1832void 2488void
1833_set_state (char *data_) 2489_set_state (SV *state)
1834 PROTOTYPE: $ 2490 PROTOTYPE: $
1835 CODE: 2491 PPCODE:
1836{ 2492{
1837 struct io_state *data = (void *)data_; 2493 AV *av = (AV *)SvRV (state);
2494 struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
2495 int i;
1838 2496
1839 errno = data->errorno; 2497 errno = data->errorno;
1840 PL_laststype = data->laststype; 2498 PL_laststype = data->laststype;
1841 PL_laststatval = data->laststatval; 2499 PL_laststatval = data->laststatval;
1842 PL_statcache = data->statcache; 2500 PL_statcache = data->statcache;
1843}
1844 2501
2502 EXTEND (SP, AvFILLp (av));
2503 for (i = 0; i < AvFILLp (av); ++i)
2504 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
2505}
2506
2507
2508MODULE = Coro::State PACKAGE = Coro::AnyEvent
2509
2510BOOT:
2511 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2512
2513SV *
2514_schedule (...)
2515 PROTOTYPE: @
2516 CODE:
2517{
2518 static int incede;
2519
2520 api_cede_notself ();
2521
2522 ++incede;
2523 while (coro_nready >= incede && api_cede ())
2524 ;
2525
2526 sv_setsv (sv_activity, &PL_sv_undef);
2527 if (coro_nready >= incede)
2528 {
2529 PUSHMARK (SP);
2530 PUTBACK;
2531 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
2532 SPAGAIN;
2533 }
2534
2535 --incede;
2536}
2537
2538
2539MODULE = Coro::State PACKAGE = PerlIO::cede
2540
2541BOOT:
2542 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2543

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines