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 1.53 by pcg, Sat Feb 14 12:39:41 2004 UTC vs.
Revision 1.86 by root, Fri Nov 24 11:36:57 2006 UTC

1#define PERL_NO_GET_CONTEXT
2
3#include "libcoro/coro.c"
4
1#include "EXTERN.h" 5#include "EXTERN.h"
2#include "perl.h" 6#include "perl.h"
3#include "XSUB.h" 7#include "XSUB.h"
4 8
5#include "patchlevel.h" 9#include "patchlevel.h"
6 10
7#if PATCHLEVEL < 6 11#if PERL_VERSION < 6
8# ifndef PL_ppaddr 12# ifndef PL_ppaddr
9# define PL_ppaddr ppaddr 13# define PL_ppaddr ppaddr
10# endif 14# endif
11# ifndef call_sv 15# ifndef call_sv
12# define call_sv perl_call_sv 16# define call_sv perl_call_sv
… …
23# ifndef IS_PADCONST 27# ifndef IS_PADCONST
24# define IS_PADCONST(v) 0 28# define IS_PADCONST(v) 0
25# endif 29# endif
26#endif 30#endif
27 31
28#include "libcoro/coro.c"
29
30#include <signal.h> 32#include <errno.h>
33
34#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35# undef STACKGUARD
36#endif
37
38#ifndef STACKGUARD
39# define STACKGUARD 0
40#endif
31 41
32#ifdef HAVE_MMAP 42#ifdef HAVE_MMAP
33# include <unistd.h> 43# include <unistd.h>
34# include <sys/mman.h> 44# include <sys/mman.h>
35# ifndef MAP_ANONYMOUS 45# ifndef MAP_ANONYMOUS
… …
37# define MAP_ANONYMOUS MAP_ANON 47# define MAP_ANONYMOUS MAP_ANON
38# else 48# else
39# undef HAVE_MMAP 49# undef HAVE_MMAP
40# endif 50# endif
41# endif 51# endif
52# include <limits.h>
53# ifndef PAGESIZE
54# define PAGESIZE pagesize
55# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
56static long pagesize;
57# else
58# define BOOT_PAGESIZE
59# endif
42#endif 60#endif
43 61
44#define SUB_INIT "Coro::State::initialize" 62#define SUB_INIT "Coro::State::initialize"
45#define UCORO_STATE "_coro_state" 63#define UCORO_STATE "_coro_state"
46 64
… …
53 71
54#define labs(l) ((l) >= 0 ? (l) : -(l)) 72#define labs(l) ((l) >= 0 ? (l) : -(l))
55 73
56#include "CoroAPI.h" 74#include "CoroAPI.h"
57 75
76#ifdef USE_ITHREADS
77static perl_mutex coro_mutex;
78# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
79# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
80#else
81# define LOCK (void)0
82# define UNLOCK (void)0
83#endif
84
58static struct CoroAPI coroapi; 85static struct CoroAPI coroapi;
86static AV *main_mainstack; /* used to differentiate between $main and others */
87static HV *coro_state_stash;
88static SV *ucoro_state_sv;
89static U32 ucoro_state_hash;
90static SV *coro_mortal; /* will be freed after next transfer */
59 91
60/* this is actually not only the c stack but also c registers etc... */ 92/* this is actually not only the c stack but also c registers etc... */
61typedef struct { 93typedef struct {
62 int refcnt; /* pointer reference counter */ 94 int refcnt; /* pointer reference counter */
63 int usecnt; /* shared by how many coroutines */ 95 int usecnt; /* shared by how many coroutines */
… …
68 void *sptr; 100 void *sptr;
69 long ssize; /* positive == mmap, otherwise malloc */ 101 long ssize; /* positive == mmap, otherwise malloc */
70} coro_stack; 102} coro_stack;
71 103
72struct coro { 104struct coro {
73 /* the top-level JMPENV for each coroutine, needed to catch dies. */
74 JMPENV start_env;
75
76 /* the optional C context */ 105 /* the optional C context */
77 coro_stack *stack; 106 coro_stack *stack;
78 void *cursp; 107 void *cursp;
79 int gencnt; 108 int gencnt;
80 109
… …
93 AV *mainstack; 122 AV *mainstack;
94 SV **stack_sp; 123 SV **stack_sp;
95 OP *op; 124 OP *op;
96 SV **curpad; 125 SV **curpad;
97 AV *comppad; 126 AV *comppad;
127 CV *compcv;
98 SV **stack_base; 128 SV **stack_base;
99 SV **stack_max; 129 SV **stack_max;
100 SV **tmps_stack; 130 SV **tmps_stack;
101 I32 tmps_floor; 131 I32 tmps_floor;
102 I32 tmps_ix; 132 I32 tmps_ix;
… …
111 I32 savestack_ix; 141 I32 savestack_ix;
112 I32 savestack_max; 142 I32 savestack_max;
113 OP **retstack; 143 OP **retstack;
114 I32 retstack_ix; 144 I32 retstack_ix;
115 I32 retstack_max; 145 I32 retstack_max;
146 PMOP *curpm;
116 COP *curcop; 147 COP *curcop;
117 JMPENV *top_env; 148 JMPENV *top_env;
118 149
119 /* data associated with this coroutine (initial args) */ 150 /* data associated with this coroutine (initial args) */
120 AV *args; 151 AV *args;
121}; 152};
122 153
123typedef struct coro *Coro__State; 154typedef struct coro *Coro__State;
124typedef struct coro *Coro__State_or_hashref; 155typedef struct coro *Coro__State_or_hashref;
125 156
126static AV *main_mainstack; /* used to differentiate between $main and others */ 157static AV *
127static HV *coro_state_stash; 158coro_clone_padlist (pTHX_ CV *cv)
128static SV *ucoro_state_sv;
129static U32 ucoro_state_hash;
130static HV *padlist_cache;
131static SV *coro_mortal; /* will be freed after next transfer */
132
133/* mostly copied from op.c:cv_clone2 */
134STATIC AV *
135clone_padlist (AV *protopadlist)
136{ 159{
137 AV *av; 160 AV *padlist = CvPADLIST (cv);
138 I32 ix;
139 AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE);
140 AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE);
141 SV **pname = AvARRAY (protopad_name);
142 SV **ppad = AvARRAY (protopad);
143 I32 fname = AvFILLp (protopad_name);
144 I32 fpad = AvFILLp (protopad);
145 AV *newpadlist, *newpad_name, *newpad; 161 AV *newpadlist, *newpad;
146 SV **npad;
147
148 newpad_name = newAV ();
149 for (ix = fname; ix >= 0; ix--)
150 av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
151
152 newpad = newAV ();
153 av_fill (newpad, AvFILLp (protopad));
154 npad = AvARRAY (newpad);
155 162
156 newpadlist = newAV (); 163 newpadlist = newAV ();
157 AvREAL_off (newpadlist); 164 AvREAL_off (newpadlist);
158 av_store (newpadlist, 0, (SV *) newpad_name); 165#if PERL_VERSION < 9
166 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
167#else
168 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
169#endif
170 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
171 --AvFILLp (padlist);
172
173 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
159 av_store (newpadlist, 1, (SV *) newpad); 174 av_store (newpadlist, 1, (SV *)newpad);
160
161 av = newAV (); /* will be @_ */
162 av_extend (av, 0);
163 av_store (newpad, 0, (SV *) av);
164 AvFLAGS (av) = AVf_REIFY;
165
166 for (ix = fpad; ix > 0; ix--)
167 {
168 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
169 if (namesv && namesv != &PL_sv_undef)
170 {
171 char *name = SvPVX (namesv); /* XXX */
172 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&')
173 { /* lexical from outside? */
174 npad[ix] = SvREFCNT_inc (ppad[ix]);
175 }
176 else
177 { /* our own lexical */
178 SV *sv;
179 if (*name == '&')
180 sv = SvREFCNT_inc (ppad[ix]);
181 else if (*name == '@')
182 sv = (SV *) newAV ();
183 else if (*name == '%')
184 sv = (SV *) newHV ();
185 else
186 sv = NEWSV (0, 0);
187#ifdef SvPADBUSY
188 if (!SvPADBUSY (sv))
189#endif
190 SvPADMY_on (sv);
191 npad[ix] = sv;
192 }
193 }
194 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix]))
195 {
196 npad[ix] = SvREFCNT_inc (ppad[ix]);
197 }
198 else
199 {
200 SV *sv = NEWSV (0, 0);
201 SvPADTMP_on (sv);
202 npad[ix] = sv;
203 }
204 }
205
206#if 0 /* return -ENOTUNDERSTOOD */
207 /* Now that vars are all in place, clone nested closures. */
208
209 for (ix = fpad; ix > 0; ix--) {
210 SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;
211 if (namesv
212 && namesv != &PL_sv_undef
213 && !(SvFLAGS(namesv) & SVf_FAKE)
214 && *SvPVX(namesv) == '&'
215 && CvCLONE(ppad[ix]))
216 {
217 CV *kid = cv_clone((CV*)ppad[ix]);
218 SvREFCNT_dec(ppad[ix]);
219 CvCLONE_on(kid);
220 SvPADMY_on(kid);
221 npad[ix] = (SV*)kid;
222 }
223 }
224#endif
225 175
226 return newpadlist; 176 return newpadlist;
227} 177}
228 178
229STATIC void 179static void
230free_padlist (AV *padlist) 180free_padlist (pTHX_ AV *padlist)
231{ 181{
232 /* may be during global destruction */ 182 /* may be during global destruction */
233 if (SvREFCNT (padlist)) 183 if (SvREFCNT (padlist))
234 { 184 {
235 I32 i = AvFILLp (padlist); 185 I32 i = AvFILLp (padlist);
… …
248 198
249 SvREFCNT_dec ((SV*)padlist); 199 SvREFCNT_dec ((SV*)padlist);
250 } 200 }
251} 201}
252 202
253STATIC int 203static int
254coro_cv_free (SV *sv, MAGIC *mg) 204coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
255{ 205{
256 AV *padlist; 206 AV *padlist;
257 AV *av = (AV *)mg->mg_obj; 207 AV *av = (AV *)mg->mg_obj;
258 208
259 /* casting is fun. */ 209 /* casting is fun. */
260 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 210 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
261 free_padlist (padlist); 211 free_padlist (aTHX_ padlist);
212
213 SvREFCNT_dec (av);
214
215 return 0;
262} 216}
263 217
264#define PERL_MAGIC_coro PERL_MAGIC_ext 218#define PERL_MAGIC_coro PERL_MAGIC_ext
265 219
266static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; 220static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
267 221
268/* the next two functions merely cache the padlists */ 222/* the next two functions merely cache the padlists */
269STATIC void 223static void
270get_padlist (CV *cv) 224get_padlist (pTHX_ CV *cv)
271{ 225{
272 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 226 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
273 227
274 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) 228 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
275 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); 229 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj);
276 else 230 else
231 {
232#if 0
233 /* this should work - but it doesn't :( */
234 CV *cp = Perl_cv_clone (aTHX_ cv);
235 CvPADLIST (cv) = CvPADLIST (cp);
236 CvPADLIST (cp) = 0;
237 SvREFCNT_dec (cp);
238#else
277 CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); 239 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
240#endif
241 }
278} 242}
279 243
280STATIC void 244static void
281put_padlist (CV *cv) 245put_padlist (pTHX_ CV *cv)
282{ 246{
283 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 247 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
284 248
285 if (!mg) 249 if (!mg)
286 { 250 {
… …
312 PL_mainstack = c->mainstack; 276 PL_mainstack = c->mainstack;
313 PL_stack_sp = c->stack_sp; 277 PL_stack_sp = c->stack_sp;
314 PL_op = c->op; 278 PL_op = c->op;
315 PL_curpad = c->curpad; 279 PL_curpad = c->curpad;
316 PL_comppad = c->comppad; 280 PL_comppad = c->comppad;
281 PL_compcv = c->compcv;
317 PL_stack_base = c->stack_base; 282 PL_stack_base = c->stack_base;
318 PL_stack_max = c->stack_max; 283 PL_stack_max = c->stack_max;
319 PL_tmps_stack = c->tmps_stack; 284 PL_tmps_stack = c->tmps_stack;
320 PL_tmps_floor = c->tmps_floor; 285 PL_tmps_floor = c->tmps_floor;
321 PL_tmps_ix = c->tmps_ix; 286 PL_tmps_ix = c->tmps_ix;
… …
327 PL_scopestack_ix = c->scopestack_ix; 292 PL_scopestack_ix = c->scopestack_ix;
328 PL_scopestack_max = c->scopestack_max; 293 PL_scopestack_max = c->scopestack_max;
329 PL_savestack = c->savestack; 294 PL_savestack = c->savestack;
330 PL_savestack_ix = c->savestack_ix; 295 PL_savestack_ix = c->savestack_ix;
331 PL_savestack_max = c->savestack_max; 296 PL_savestack_max = c->savestack_max;
297#if PERL_VERSION < 9
332 PL_retstack = c->retstack; 298 PL_retstack = c->retstack;
333 PL_retstack_ix = c->retstack_ix; 299 PL_retstack_ix = c->retstack_ix;
334 PL_retstack_max = c->retstack_max; 300 PL_retstack_max = c->retstack_max;
301#endif
302 PL_curpm = c->curpm;
335 PL_curcop = c->curcop; 303 PL_curcop = c->curcop;
336 PL_top_env = c->top_env; 304 PL_top_env = c->top_env;
337 305
338 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 306 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
339 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 307 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
… …
348 { 316 {
349 AV *padlist = (AV *)POPs; 317 AV *padlist = (AV *)POPs;
350 318
351 if (padlist) 319 if (padlist)
352 { 320 {
353 put_padlist (cv); /* mark this padlist as available */ 321 put_padlist (aTHX_ cv); /* mark this padlist as available */
354 CvPADLIST(cv) = padlist; 322 CvPADLIST(cv) = padlist;
355#ifdef USE_THREADS
356 /*CvOWNER(cv) = (struct perl_thread *)POPs;*/
357#endif
358 } 323 }
359 324
360 ++CvDEPTH(cv); 325 ++CvDEPTH(cv);
361 } 326 }
362 327
… …
389 if (CxTYPE(cx) == CXt_SUB) 354 if (CxTYPE(cx) == CXt_SUB)
390 { 355 {
391 CV *cv = cx->blk_sub.cv; 356 CV *cv = cx->blk_sub.cv;
392 if (CvDEPTH(cv)) 357 if (CvDEPTH(cv))
393 { 358 {
394#ifdef USE_THREADS
395 /*XPUSHs ((SV *)CvOWNER(cv));*/
396 /*CvOWNER(cv) = 0;*/
397 /*error must unlock this cv etc.. etc...*/
398#endif
399 EXTEND (SP, CvDEPTH(cv)*2); 359 EXTEND (SP, CvDEPTH(cv)*2);
400 360
401 while (--CvDEPTH(cv)) 361 while (--CvDEPTH(cv))
402 { 362 {
403 /* this tells the restore code to increment CvDEPTH */ 363 /* this tells the restore code to increment CvDEPTH */
… …
406 } 366 }
407 367
408 PUSHs ((SV *)CvPADLIST(cv)); 368 PUSHs ((SV *)CvPADLIST(cv));
409 PUSHs ((SV *)cv); 369 PUSHs ((SV *)cv);
410 370
411 get_padlist (cv); /* this is a monster */ 371 get_padlist (aTHX_ cv);
412 } 372 }
413 } 373 }
414#ifdef CXt_FORMAT 374#ifdef CXt_FORMAT
415 else if (CxTYPE(cx) == CXt_FORMAT) 375 else if (CxTYPE(cx) == CXt_FORMAT)
416 { 376 {
… …
444 c->mainstack = PL_mainstack; 404 c->mainstack = PL_mainstack;
445 c->stack_sp = PL_stack_sp; 405 c->stack_sp = PL_stack_sp;
446 c->op = PL_op; 406 c->op = PL_op;
447 c->curpad = PL_curpad; 407 c->curpad = PL_curpad;
448 c->comppad = PL_comppad; 408 c->comppad = PL_comppad;
409 c->compcv = PL_compcv;
449 c->stack_base = PL_stack_base; 410 c->stack_base = PL_stack_base;
450 c->stack_max = PL_stack_max; 411 c->stack_max = PL_stack_max;
451 c->tmps_stack = PL_tmps_stack; 412 c->tmps_stack = PL_tmps_stack;
452 c->tmps_floor = PL_tmps_floor; 413 c->tmps_floor = PL_tmps_floor;
453 c->tmps_ix = PL_tmps_ix; 414 c->tmps_ix = PL_tmps_ix;
… …
459 c->scopestack_ix = PL_scopestack_ix; 420 c->scopestack_ix = PL_scopestack_ix;
460 c->scopestack_max = PL_scopestack_max; 421 c->scopestack_max = PL_scopestack_max;
461 c->savestack = PL_savestack; 422 c->savestack = PL_savestack;
462 c->savestack_ix = PL_savestack_ix; 423 c->savestack_ix = PL_savestack_ix;
463 c->savestack_max = PL_savestack_max; 424 c->savestack_max = PL_savestack_max;
425#if PERL_VERSION < 9
464 c->retstack = PL_retstack; 426 c->retstack = PL_retstack;
465 c->retstack_ix = PL_retstack_ix; 427 c->retstack_ix = PL_retstack_ix;
466 c->retstack_max = PL_retstack_max; 428 c->retstack_max = PL_retstack_max;
429#endif
430 c->curpm = PL_curpm;
467 c->curcop = PL_curcop; 431 c->curcop = PL_curcop;
468 c->top_env = PL_top_env; 432 c->top_env = PL_top_env;
469} 433}
470 434
471/* 435/*
472 * allocate various perl stacks. This is an exact copy 436 * allocate various perl stacks. This is an exact copy
473 * of perl.c:init_stacks, except that it uses less memory 437 * of perl.c:init_stacks, except that it uses less memory
474 * on the (sometimes correct) assumption that coroutines do 438 * on the (sometimes correct) assumption that coroutines do
475 * not usually need a lot of stackspace. 439 * not usually need a lot of stackspace.
476 */ 440 */
477STATIC void 441static void
478coro_init_stacks (pTHX) 442coro_init_stacks (pTHX)
479{ 443{
444 LOCK;
445
480 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 446 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
481 PL_curstackinfo->si_type = PERLSI_MAIN; 447 PL_curstackinfo->si_type = PERLSI_MAIN;
482 PL_curstack = PL_curstackinfo->si_stack; 448 PL_curstack = PL_curstackinfo->si_stack;
483 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 449 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
484 450
… …
505 471
506 New(54,PL_savestack,96,ANY); 472 New(54,PL_savestack,96,ANY);
507 PL_savestack_ix = 0; 473 PL_savestack_ix = 0;
508 PL_savestack_max = 96; 474 PL_savestack_max = 96;
509 475
476#if PERL_VERSION < 9
510 New(54,PL_retstack,8,OP*); 477 New(54,PL_retstack,8,OP*);
511 PL_retstack_ix = 0; 478 PL_retstack_ix = 0;
512 PL_retstack_max = 8; 479 PL_retstack_max = 8;
480#endif
481
482 UNLOCK;
513} 483}
514 484
515/* 485/*
516 * destroy the stacks, the callchain etc... 486 * destroy the stacks, the callchain etc...
517 */ 487 */
518STATIC void 488static void
519destroy_stacks(pTHX) 489destroy_stacks(pTHX)
520{ 490{
521 if (!IN_DESTRUCT) 491 if (!IN_DESTRUCT)
522 { 492 {
523 /* is this ugly, I ask? */ 493 /* is this ugly, I ask? */
524 LEAVE_SCOPE (0); 494 LEAVE_SCOPE (0);
525 495
526 /* sure it is, but more important: is it correct?? :/ */ 496 /* sure it is, but more important: is it correct?? :/ */
527 FREETMPS; 497 FREETMPS;
498
499 /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/
528 } 500 }
529 501
530 while (PL_curstackinfo->si_next) 502 while (PL_curstackinfo->si_next)
531 PL_curstackinfo = PL_curstackinfo->si_next; 503 PL_curstackinfo = PL_curstackinfo->si_next;
532 504
533 while (PL_curstackinfo) 505 while (PL_curstackinfo)
534 { 506 {
535 PERL_SI *p = PL_curstackinfo->si_prev; 507 PERL_SI *p = PL_curstackinfo->si_prev;
536 508
537 { 509 { /*D*//*remove*/
538 dSP; 510 dSP;
539 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); 511 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
540 PUTBACK; /* possibly superfluous */ 512 PUTBACK; /* possibly superfluous */
541 } 513 }
542 514
543 if (!IN_DESTRUCT) 515 if (!IN_DESTRUCT)
544 { 516 {
545 dounwind(-1); 517 dounwind (-1);/*D*//*remove*/
546 SvREFCNT_dec(PL_curstackinfo->si_stack); 518 SvREFCNT_dec (PL_curstackinfo->si_stack);
547 } 519 }
548 520
549 Safefree(PL_curstackinfo->si_cxstack); 521 Safefree (PL_curstackinfo->si_cxstack);
550 Safefree(PL_curstackinfo); 522 Safefree (PL_curstackinfo);
551 PL_curstackinfo = p; 523 PL_curstackinfo = p;
552 } 524 }
553 525
554 Safefree(PL_tmps_stack); 526 Safefree (PL_tmps_stack);
555 Safefree(PL_markstack); 527 Safefree (PL_markstack);
556 Safefree(PL_scopestack); 528 Safefree (PL_scopestack);
557 Safefree(PL_savestack); 529 Safefree (PL_savestack);
530#if PERL_VERSION < 9
558 Safefree(PL_retstack); 531 Safefree (PL_retstack);
532#endif
559} 533}
560 534
561static void 535static void
562allocate_stack (Coro__State ctx, int alloc) 536allocate_stack (Coro__State ctx, int alloc)
563{ 537{
… …
566 New (0, stack, 1, coro_stack); 540 New (0, stack, 1, coro_stack);
567 541
568 stack->refcnt = 1; 542 stack->refcnt = 1;
569 stack->usecnt = 1; 543 stack->usecnt = 1;
570 stack->gencnt = ctx->gencnt = 0; 544 stack->gencnt = ctx->gencnt = 0;
545
571 if (alloc) 546 if (alloc)
572 { 547 {
573#if HAVE_MMAP 548#if HAVE_MMAP
574 stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */ 549 stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
575 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 550 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
576 if (stack->sptr == (void *)-1) 551 if (stack->sptr != (void *)-1)
577#endif
578 { 552 {
579 /*FIXME*//*D*//* reasonable stack size! */ 553# if STACKGUARD
554 mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
555# endif
556 }
557 else
558#endif
559 {
580 stack->ssize = - (8192 * sizeof (long)); 560 stack->ssize = - (STACKSIZE * (long)sizeof (long));
581 New (0, stack->sptr, 8192, long); 561 New (0, stack->sptr, STACKSIZE, long);
582 } 562 }
583 } 563 }
584 else 564 else
585 stack->sptr = 0; 565 stack->sptr = 0;
586 566
… …
616setup_coro (void *arg) 596setup_coro (void *arg)
617{ 597{
618 /* 598 /*
619 * emulate part of the perl startup here. 599 * emulate part of the perl startup here.
620 */ 600 */
601 dTHX;
621 dSP; 602 dSP;
622 Coro__State ctx = (Coro__State)arg; 603 Coro__State ctx = (Coro__State)arg;
623 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); 604 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE);
624 605
625 coro_init_stacks (aTHX); 606 coro_init_stacks (aTHX);
… …
645 } 626 }
646 else 627 else
647 { 628 {
648 UNOP myop; 629 UNOP myop;
649 630
650 PL_op = (OP *)&myop;
651
652 Zero(&myop, 1, UNOP); 631 Zero(&myop, 1, UNOP);
653 myop.op_next = Nullop; 632 myop.op_next = Nullop;
654 myop.op_flags = OPf_WANT_VOID; 633 myop.op_flags = OPf_WANT_VOID;
634
635 PL_op = (OP *)&myop;
655 636
656 PUSHMARK(SP); 637 PUSHMARK(SP);
657 XPUSHs (sub_init); 638 XPUSHs (sub_init);
658 /* 639 /*
659 * the next line is slightly wrong, as PL_op->op_next 640 * the next line is slightly wrong, as PL_op->op_next
… …
674continue_coro (void *arg) 655continue_coro (void *arg)
675{ 656{
676 /* 657 /*
677 * this is a _very_ stripped down perl interpreter ;) 658 * this is a _very_ stripped down perl interpreter ;)
678 */ 659 */
660 dTHX;
679 Coro__State ctx = (Coro__State)arg; 661 Coro__State ctx = (Coro__State)arg;
680 JMPENV coro_start_env;
681 662
682 PL_top_env = &ctx->start_env; 663 PL_top_env = &PL_start_env;
683 664
684 ctx->cursp = 0; 665 ctx->cursp = 0;
685 PL_op = PL_op->op_next; 666 PL_op = PL_op->op_next;
686 CALLRUNOPS(aTHX); 667 CALLRUNOPS(aTHX);
687 668
688 abort (); 669 abort ();
689} 670}
690 671
691STATIC void 672/* never call directly, always through the coro_state_transfer global variable */
673static void
692transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 674transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags)
693{ 675{
694 dSTACKLEVEL; 676 dSTACKLEVEL;
695 static struct coro *xnext;
696 677
697 if (prev != next) 678 if (prev != next)
698 { 679 {
699 xnext = next; 680 /* has this coro been created yet? */
700
701 if (next->mainstack) 681 if (next->mainstack)
702 { 682 {
683 LOCK;
703 SAVE (prev, flags); 684 SAVE (prev, flags);
704 LOAD (next); 685 LOAD (next);
686 UNLOCK;
705 687
706 /* mark this state as in-use */ 688 /* mark this state as in-use */
707 next->mainstack = 0; 689 next->mainstack = 0;
708 next->tmps_ix = -2; 690 next->tmps_ix = -2;
709 691
… …
728 continue_coro, (void *)next, 710 continue_coro, (void *)next,
729 next->stack->sptr, labs (next->stack->ssize)); 711 next->stack->sptr, labs (next->stack->ssize));
730 } 712 }
731 713
732 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 714 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
715 prev->cursp = stacklevel;
733 /* don't add any code here */ 716 /* don't add any code here */
734 } 717 }
735 718 else
719 next->cursp = stacklevel;
736 } 720 }
737 else if (next->tmps_ix == -2) 721 else if (next->tmps_ix == -2)
738 croak ("tried to transfer to running coroutine"); 722 croak ("tried to transfer to running coroutine");
739 else 723 else
740 { 724 {
725 LOCK;
741 SAVE (prev, -1); /* first get rid of the old state */ 726 SAVE (prev, -1); /* first get rid of the old state */
727 UNLOCK;
742 728
729 /* create the coroutine for the first time */
743 if (flags & TRANSFER_SAVE_CCTXT) 730 if (flags & TRANSFER_SAVE_CCTXT)
744 { 731 {
745 if (!prev->stack) 732 if (!prev->stack)
746 allocate_stack (prev, 0); 733 allocate_stack (prev, 0);
747 734
735 /* the new coroutine starts with start_env again */
736 PL_top_env = &PL_start_env;
737
748 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) 738 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
749 { 739 {
750 PL_top_env = &next->start_env;
751
752 setup_coro (next); 740 setup_coro (next);
741 next->cursp = stacklevel;
753 742
754 prev->stack->refcnt++; 743 prev->stack->refcnt++;
755 prev->stack->usecnt++; 744 prev->stack->usecnt++;
756 next->stack = prev->stack; 745 next->stack = prev->stack;
757 next->gencnt = prev->gencnt; 746 next->gencnt = prev->gencnt;
… …
762 allocate_stack (next, 1); 751 allocate_stack (next, 1);
763 coro_create (&(next->stack->cctx), 752 coro_create (&(next->stack->cctx),
764 setup_coro, (void *)next, 753 setup_coro, (void *)next,
765 next->stack->sptr, labs (next->stack->ssize)); 754 next->stack->sptr, labs (next->stack->ssize));
766 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 755 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
756 prev->cursp = stacklevel;
767 /* don't add any code here */ 757 /* don't add any code here */
768 } 758 }
769 } 759 }
770 else 760 else
761 {
771 setup_coro (next); 762 setup_coro (next);
763 next->cursp = stacklevel;
764 }
772 } 765 }
773
774 /*
775 * xnext is now either prev or next, depending on wether
776 * we switched the c stack or not. that's why I use a global
777 * variable, that should become thread-specific at one point.
778 */
779 xnext->cursp = stacklevel;
780 } 766 }
781 767
768 LOCK;
782 if (coro_mortal) 769 if (coro_mortal)
783 { 770 {
784 SvREFCNT_dec (coro_mortal); 771 SvREFCNT_dec (coro_mortal);
785 coro_mortal = 0; 772 coro_mortal = 0;
786 } 773 }
774 UNLOCK;
787} 775}
776
777/* use this function pointer to call the above function */
778/* this is done to increase chances of the compiler not inlining the call */
779void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl;
788 780
789#define SV_CORO(sv,func) \ 781#define SV_CORO(sv,func) \
790 do { \ 782 do { \
791 if (SvROK (sv)) \ 783 if (SvROK (sv)) \
792 sv = SvRV (sv); \ 784 sv = SvRV (sv); \
793 \ 785 \
794 if (SvTYPE(sv) == SVt_PVHV) \ 786 if (SvTYPE (sv) == SVt_PVHV) \
795 { \ 787 { \
796 HE *he = hv_fetch_ent((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ 788 HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \
797 \ 789 \
798 if (!he) \ 790 if (!he) \
799 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ 791 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
800 \ 792 \
801 (sv) = SvRV (HeVAL(he)); \ 793 (sv) = SvRV (HeVAL(he)); \
802 } \ 794 } \
803 \ 795 \
804 /* must also be changed inside Coro::Cont::yield */ \ 796 /* must also be changed inside Coro::Cont::yield */ \
805 if (!SvOBJECT(sv) || SvSTASH(sv) != coro_state_stash) \ 797 if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \
806 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ 798 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
807 \ 799 \
808 } while(0) 800 } while(0)
809 801
810#define SvSTATE(sv) (struct coro *)SvIV (sv) 802#define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv))
811 803
812static void 804static void
813api_transfer(pTHX_ SV *prev, SV *next, int flags) 805api_transfer (pTHX_ SV *prev, SV *next, int flags)
814{ 806{
815 SV_CORO (prev, "Coro::transfer"); 807 SV_CORO (prev, "Coro::transfer");
816 SV_CORO (next, "Coro::transfer"); 808 SV_CORO (next, "Coro::transfer");
817 809
818 transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags); 810 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
819} 811}
820 812
821/** Coro ********************************************************************/ 813/** Coro ********************************************************************/
822 814
823#define PRIO_MAX 3 815#define PRIO_MAX 3
… …
827#define PRIO_IDLE -3 819#define PRIO_IDLE -3
828#define PRIO_MIN -4 820#define PRIO_MIN -4
829 821
830/* for Coro.pm */ 822/* for Coro.pm */
831static GV *coro_current, *coro_idle; 823static GV *coro_current, *coro_idle;
832static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; 824static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
833static int coro_nready; 825static int coro_nready;
834 826
835static void 827static void
836coro_enq (SV *sv) 828coro_enq (pTHX_ SV *sv)
837{ 829{
830 SV **xprio;
831 int prio;
832
838 if (SvTYPE (sv) == SVt_PVHV) 833 if (SvTYPE (sv) != SVt_PVHV)
839 {
840 SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
841 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
842
843 prio = prio > PRIO_MAX ? PRIO_MAX
844 : prio < PRIO_MIN ? PRIO_MIN
845 : prio;
846
847 av_push (coro_ready [prio - PRIO_MIN], sv);
848 coro_nready++;
849
850 return;
851 }
852
853 croak ("Coro::ready tried to enqueue something that is not a coroutine"); 834 croak ("Coro::ready tried to enqueue something that is not a coroutine");
835
836 xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
837 prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
838
839 prio = prio > PRIO_MAX ? PRIO_MAX
840 : prio < PRIO_MIN ? PRIO_MIN
841 : prio;
842
843 av_push (coro_ready [prio - PRIO_MIN], sv);
844 coro_nready++;
854} 845}
855 846
856static SV * 847static SV *
857coro_deq (int min_prio) 848coro_deq (pTHX_ int min_prio)
858{ 849{
859 int prio = PRIO_MAX - PRIO_MIN; 850 int prio = PRIO_MAX - PRIO_MIN;
860 851
861 min_prio -= PRIO_MIN; 852 min_prio -= PRIO_MIN;
862 if (min_prio < 0) 853 if (min_prio < 0)
863 min_prio = 0; 854 min_prio = 0;
864 855
865 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 856 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
866 if (av_len (coro_ready[prio]) >= 0) 857 if (AvFILLp (coro_ready [prio]) >= 0)
867 { 858 {
868 coro_nready--; 859 coro_nready--;
869 return av_shift (coro_ready[prio]); 860 return av_shift (coro_ready [prio]);
870 } 861 }
871 862
872 return 0; 863 return 0;
873} 864}
874 865
875static void 866static void
876api_ready (SV *coro) 867api_ready (SV *coro)
877{ 868{
869 dTHX;
870
878 if (SvROK (coro)) 871 if (SvROK (coro))
879 coro = SvRV (coro); 872 coro = SvRV (coro);
880 873
874 LOCK;
881 coro_enq (SvREFCNT_inc (coro)); 875 coro_enq (aTHX_ SvREFCNT_inc (coro));
876 UNLOCK;
882} 877}
883 878
884static void 879static void
885api_schedule (void) 880api_schedule (void)
886{ 881{
882 dTHX;
883
887 SV *prev, *next; 884 SV *prev, *next;
888 885
886 LOCK;
887
889 prev = SvRV (GvSV (coro_current)); 888 prev = SvRV (GvSV (coro_current));
890 next = coro_deq (PRIO_MIN); 889 next = coro_deq (aTHX_ PRIO_MIN);
891 890
892 if (!next) 891 if (!next)
893 next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); 892 next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
894 893
895 /* free this only after the transfer */ 894 /* free this only after the transfer */
… …
898 897
899 SvRV (GvSV (coro_current)) = next; 898 SvRV (GvSV (coro_current)) = next;
900 899
901 SV_CORO (next, "Coro::schedule"); 900 SV_CORO (next, "Coro::schedule");
902 901
902 UNLOCK;
903
903 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), 904 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
904 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); 905 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK);
905} 906}
906 907
907static void 908static void
908api_cede (void) 909api_cede (void)
909{ 910{
911 dTHX;
912
913 LOCK;
910 coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); 914 coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
915 UNLOCK;
911 916
912 api_schedule (); 917 api_schedule ();
913} 918}
914 919
915MODULE = Coro::State PACKAGE = Coro::State 920MODULE = Coro::State PACKAGE = Coro::State
916 921
917PROTOTYPES: ENABLE 922PROTOTYPES: ENABLE
918 923
919BOOT: 924BOOT:
920{ /* {} necessary for stoopid perl-5.6.x */ 925{ /* {} necessary for stoopid perl-5.6.x */
926#ifdef USE_ITHREADS
927 MUTEX_INIT (&coro_mutex);
928#endif
929 BOOT_PAGESIZE;
930
921 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); 931 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
922 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); 932 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
923 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 933 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
924 934
925 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); 935 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
926 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); 936 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
927 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); 937 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
928 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); 938 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
929 939
930 if (!padlist_cache)
931 padlist_cache = newHV ();
932
933 main_mainstack = PL_mainstack; 940 main_mainstack = PL_mainstack;
934 941
935 coroapi.ver = CORO_API_VERSION; 942 coroapi.ver = CORO_API_VERSION;
936 coroapi.transfer = api_transfer; 943 coroapi.transfer = api_transfer;
937} 944}
938 945
939Coro::State 946Coro::State
940_newprocess(args) 947new (char *klass, ...)
941 SV * args
942 PROTOTYPE: $ 948 PROTOTYPE: $@
943 CODE: 949 CODE:
950{
944 Coro__State coro; 951 Coro__State coro;
952 int i;
945 953
946 if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) 954 if (!SvOK (ST (1)))
947 croak ("Coro::State::_newprocess expects an arrayref"); 955 croak ("Coro::State::new needs something callable as first argument");
948 956
949 Newz (0, coro, 1, struct coro); 957 Newz (0, coro, 1, struct coro);
958 coro->args = newAV ();
950 959
951 coro->args = (AV *)SvREFCNT_inc (SvRV (args)); 960 for (i = 1; i < items; i++)
952 coro->mainstack = 0; /* actual work is done inside transfer */ 961 av_push (coro->args, newSVsv (ST (i)));
953 coro->stack = 0;
954
955 /* same as JMPENV_BOOTSTRAP */
956 /* we might be able to recycle start_env, but safe is safe */
957 //Zero(&coro->start_env, 1, JMPENV);
958 coro->start_env.je_ret = -1;
959 coro->start_env.je_mustcatch = TRUE;
960 962
961 RETVAL = coro; 963 RETVAL = coro;
964
965 /*coro->mainstack = 0; *//*actual work is done inside transfer */
966 /*coro->stack = 0;*/
967}
962 OUTPUT: 968 OUTPUT:
963 RETVAL 969 RETVAL
964 970
965void 971void
966transfer(prev, next, flags) 972transfer(prev, next, flags)
… …
970 PROTOTYPE: @ 976 PROTOTYPE: @
971 CODE: 977 CODE:
972 PUTBACK; 978 PUTBACK;
973 SV_CORO (next, "Coro::transfer"); 979 SV_CORO (next, "Coro::transfer");
974 SV_CORO (prev, "Coro::transfer"); 980 SV_CORO (prev, "Coro::transfer");
975 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); 981 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
976 SPAGAIN; 982 SPAGAIN;
977 983
978void 984void
979DESTROY(coro) 985DESTROY(coro)
980 Coro::State coro 986 Coro::State coro
… …
983 if (coro->mainstack && coro->mainstack != main_mainstack) 989 if (coro->mainstack && coro->mainstack != main_mainstack)
984 { 990 {
985 struct coro temp; 991 struct coro temp;
986 992
987 PUTBACK; 993 PUTBACK;
988 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 994 SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
989 LOAD(aTHX_ coro); 995 LOAD (aTHX_ coro);
990 SPAGAIN; 996 SPAGAIN;
991 997
992 destroy_stacks (aTHX); 998 destroy_stacks (aTHX);
993 999
994 LOAD((&temp)); /* this will get rid of defsv etc.. */ 1000 LOAD ((&temp)); /* this will get rid of defsv etc.. */
995 SPAGAIN; 1001 SPAGAIN;
996 1002
997 coro->mainstack = 0; 1003 coro->mainstack = 0;
998 } 1004 }
999 1005
… …
1008 CODE: 1014 CODE:
1009 _exit (code); 1015 _exit (code);
1010 1016
1011MODULE = Coro::State PACKAGE = Coro::Cont 1017MODULE = Coro::State PACKAGE = Coro::Cont
1012 1018
1013# this is slightly dirty (should expose a c-level api)
1014
1015void 1019void
1016yield(...) 1020yield(...)
1017 PROTOTYPE: @ 1021 PROTOTYPE: @
1018 CODE: 1022 CODE:
1019 static SV *returnstk; 1023 SV *yieldstack;
1020 SV *sv; 1024 SV *sv;
1021 AV *defav = GvAV (PL_defgv); 1025 AV *defav = GvAV (PL_defgv);
1022 struct coro *prev, *next; 1026 struct coro *prev, *next;
1023 1027
1024 if (!returnstk) 1028 yieldstack = *hv_fetch (
1025 returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE)); 1029 (HV *)SvRV (GvSV (coro_current)),
1030 "yieldstack", sizeof ("yieldstack") - 1,
1031 0
1032 );
1026 1033
1027 /* set up @_ -- ugly */ 1034 /* set up @_ -- ugly */
1028 av_clear (defav); 1035 av_clear (defav);
1029 av_fill (defav, items - 1); 1036 av_fill (defav, items - 1);
1030 while (items--) 1037 while (items--)
1031 av_store (defav, items, SvREFCNT_inc (ST(items))); 1038 av_store (defav, items, SvREFCNT_inc (ST(items)));
1032 1039
1033 mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1034 sv = av_pop ((AV *)SvRV (returnstk)); 1040 sv = av_pop ((AV *)SvRV (yieldstack));
1035 prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); 1041 prev = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0)));
1036 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); 1042 next = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)));
1037 SvREFCNT_dec (sv); 1043 SvREFCNT_dec (sv);
1038 1044
1039 transfer(aTHX_ prev, next, 0); 1045 coro_state_transfer (aTHX_ prev, next, 0);
1040 1046
1041MODULE = Coro::State PACKAGE = Coro 1047MODULE = Coro::State PACKAGE = Coro
1042
1043# this is slightly dirty (should expose a c-level api)
1044 1048
1045BOOT: 1049BOOT:
1046{ 1050{
1047 int i; 1051 int i;
1048 HV *stash = gv_stashpv ("Coro", TRUE); 1052 HV *stash = gv_stashpv ("Coro", TRUE);
… …
1068 coroapi.ready = api_ready; 1072 coroapi.ready = api_ready;
1069 coroapi.nready = &coro_nready; 1073 coroapi.nready = &coro_nready;
1070 coroapi.current = coro_current; 1074 coroapi.current = coro_current;
1071 1075
1072 GCoroAPI = &coroapi; 1076 GCoroAPI = &coroapi;
1073 sv_setiv(sv, (IV)&coroapi); 1077 sv_setiv (sv, (IV)&coroapi);
1074 SvREADONLY_on(sv); 1078 SvREADONLY_on (sv);
1075 } 1079 }
1076} 1080}
1077 1081
1078#if !PERL_MICRO 1082#if !PERL_MICRO
1079 1083
… …
1104cede(...) 1108cede(...)
1105 PROTOTYPE: 1109 PROTOTYPE:
1106 CODE: 1110 CODE:
1107 api_cede (); 1111 api_cede ();
1108 1112
1113# and these are hacks
1114SV *
1115_aio_get_state ()
1116 CODE:
1117{
1118 struct {
1119 int errorno;
1120 int laststype;
1121 int laststatval;
1122 Stat_t statcache;
1123 } data;
1124
1125 data.errorno = errno;
1126 data.laststype = PL_laststype;
1127 data.laststatval = PL_laststatval;
1128 data.statcache = PL_statcache;
1129
1130 RETVAL = newSVpvn ((char *)&data, sizeof data);
1131}
1132 OUTPUT:
1133 RETVAL
1134
1135void
1136_aio_set_state (char *data_)
1137 PROTOTYPE: $
1138 CODE:
1139{
1140 struct {
1141 int errorno;
1142 int laststype;
1143 int laststatval;
1144 Stat_t statcache;
1145 } *data = (void *)data_;
1146
1147 errno = data->errorno;
1148 PL_laststype = data->laststype;
1149 PL_laststatval = data->laststatval;
1150 PL_statcache = data->statcache;
1151}

Diff Legend

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