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Comparing Coro/Coro/State.xs (file contents):
Revision 1.49 by pcg, Sun Nov 23 03:34:13 2003 UTC vs.
Revision 1.77 by root, Tue Oct 31 23:55:33 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>
31 33
32#ifdef HAVE_MMAP 34#ifdef HAVE_MMAP
33# include <unistd.h> 35# include <unistd.h>
34# include <sys/mman.h> 36# include <sys/mman.h>
35# ifndef MAP_ANONYMOUS 37# ifndef MAP_ANONYMOUS
… …
39# undef HAVE_MMAP 41# undef HAVE_MMAP
40# endif 42# endif
41# endif 43# endif
42#endif 44#endif
43 45
44#define MAY_FLUSH /* increases codesize and is rarely used */
45
46#define SUB_INIT "Coro::State::initialize" 46#define SUB_INIT "Coro::State::initialize"
47#define UCORO_STATE "_coro_state" 47#define UCORO_STATE "_coro_state"
48 48
49/* The next macro should declare a variable stacklevel that contains and approximation 49/* The next macro should declare a variable stacklevel that contains and approximation
50 * to the current C stack pointer. Its property is that it changes with each call 50 * to the current C stack pointer. Its property is that it changes with each call
… …
55 55
56#define labs(l) ((l) >= 0 ? (l) : -(l)) 56#define labs(l) ((l) >= 0 ? (l) : -(l))
57 57
58#include "CoroAPI.h" 58#include "CoroAPI.h"
59 59
60#ifdef USE_ITHREADS
61static perl_mutex coro_mutex;
62# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
63# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
64#else
65# define LOCK (void)0
66# define UNLOCK (void)0
67#endif
68
60static struct CoroAPI coroapi; 69static struct CoroAPI coroapi;
70static AV *main_mainstack; /* used to differentiate between $main and others */
71static HV *coro_state_stash;
72static SV *ucoro_state_sv;
73static U32 ucoro_state_hash;
74static SV *coro_mortal; /* will be freed after next transfer */
61 75
62/* this is actually not only the c stack but also c registers etc... */ 76/* this is actually not only the c stack but also c registers etc... */
63typedef struct { 77typedef struct {
64 int refcnt; /* pointer reference counter */ 78 int refcnt; /* pointer reference counter */
65 int usecnt; /* shared by how many coroutines */ 79 int usecnt; /* shared by how many coroutines */
… …
95 AV *mainstack; 109 AV *mainstack;
96 SV **stack_sp; 110 SV **stack_sp;
97 OP *op; 111 OP *op;
98 SV **curpad; 112 SV **curpad;
99 AV *comppad; 113 AV *comppad;
114 CV *compcv;
100 SV **stack_base; 115 SV **stack_base;
101 SV **stack_max; 116 SV **stack_max;
102 SV **tmps_stack; 117 SV **tmps_stack;
103 I32 tmps_floor; 118 I32 tmps_floor;
104 I32 tmps_ix; 119 I32 tmps_ix;
… …
113 I32 savestack_ix; 128 I32 savestack_ix;
114 I32 savestack_max; 129 I32 savestack_max;
115 OP **retstack; 130 OP **retstack;
116 I32 retstack_ix; 131 I32 retstack_ix;
117 I32 retstack_max; 132 I32 retstack_max;
133 PMOP *curpm;
118 COP *curcop; 134 COP *curcop;
119 JMPENV *top_env; 135 JMPENV *top_env;
120 136
121 /* data associated with this coroutine (initial args) */ 137 /* data associated with this coroutine (initial args) */
122 AV *args; 138 AV *args;
123}; 139};
124 140
125typedef struct coro *Coro__State; 141typedef struct coro *Coro__State;
126typedef struct coro *Coro__State_or_hashref; 142typedef struct coro *Coro__State_or_hashref;
127 143
128static AV *main_mainstack; /* used to differentiate between $main and others */ 144static AV *
129static HV *coro_state_stash; 145coro_clone_padlist (pTHX_ CV *cv)
130static SV *ucoro_state_sv;
131static U32 ucoro_state_hash;
132static HV *padlist_cache;
133static SV *coro_mortal; /* will be freed after next transfer */
134
135/* mostly copied from op.c:cv_clone2 */
136STATIC AV *
137clone_padlist (AV *protopadlist)
138{ 146{
139 AV *av; 147 AV *padlist = CvPADLIST (cv);
140 I32 ix;
141 AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE);
142 AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE);
143 SV **pname = AvARRAY (protopad_name);
144 SV **ppad = AvARRAY (protopad);
145 I32 fname = AvFILLp (protopad_name);
146 I32 fpad = AvFILLp (protopad);
147 AV *newpadlist, *newpad_name, *newpad; 148 AV *newpadlist, *newpad;
148 SV **npad;
149
150 newpad_name = newAV ();
151 for (ix = fname; ix >= 0; ix--)
152 av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
153
154 newpad = newAV ();
155 av_fill (newpad, AvFILLp (protopad));
156 npad = AvARRAY (newpad);
157 149
158 newpadlist = newAV (); 150 newpadlist = newAV ();
159 AvREAL_off (newpadlist); 151 AvREAL_off (newpadlist);
160 av_store (newpadlist, 0, (SV *) newpad_name); 152 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
153 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
154 --AvFILLp (padlist);
155
156 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
161 av_store (newpadlist, 1, (SV *) newpad); 157 av_store (newpadlist, 1, (SV *)newpad);
162 158
163 av = newAV (); /* will be @_ */ 159 return newpadlist;
164 av_extend (av, 0); 160}
165 av_store (newpad, 0, (SV *) av);
166 AvFLAGS (av) = AVf_REIFY;
167 161
168 for (ix = fpad; ix > 0; ix--) 162static void
163free_padlist (pTHX_ AV *padlist)
164{
165 /* may be during global destruction */
166 if (SvREFCNT (padlist))
169 { 167 {
170 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; 168 I32 i = AvFILLp (padlist);
171 if (namesv && namesv != &PL_sv_undef) 169 while (i >= 0)
172 { 170 {
173 char *name = SvPVX (namesv); /* XXX */ 171 SV **svp = av_fetch (padlist, i--, FALSE);
174 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') 172 if (svp)
175 { /* lexical from outside? */
176 npad[ix] = SvREFCNT_inc (ppad[ix]);
177 } 173 {
178 else
179 { /* our own lexical */
180 SV *sv; 174 SV *sv;
181 if (*name == '&') 175 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
182 sv = SvREFCNT_inc (ppad[ix]); 176 SvREFCNT_dec (sv);
183 else if (*name == '@') 177
184 sv = (SV *) newAV (); 178 SvREFCNT_dec (*svp);
185 else if (*name == '%')
186 sv = (SV *) newHV ();
187 else
188 sv = NEWSV (0, 0);
189#ifdef SvPADBUSY
190 if (!SvPADBUSY (sv))
191#endif
192 SvPADMY_on (sv);
193 npad[ix] = sv;
194 } 179 }
195 } 180 }
196 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) 181
197 { 182 SvREFCNT_dec ((SV*)padlist);
198 npad[ix] = SvREFCNT_inc (ppad[ix]);
199 }
200 else
201 {
202 SV *sv = NEWSV (0, 0);
203 SvPADTMP_on (sv);
204 npad[ix] = sv;
205 }
206 } 183 }
184}
207 185
208#if 0 /* return -ENOTUNDERSTOOD */ 186static int
209 /* Now that vars are all in place, clone nested closures. */ 187coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
188{
189 AV *padlist;
190 AV *av = (AV *)mg->mg_obj;
210 191
211 for (ix = fpad; ix > 0; ix--) { 192 /* casting is fun. */
212 SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; 193 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
213 if (namesv 194 free_padlist (aTHX_ padlist);
214 && namesv != &PL_sv_undef 195
215 && !(SvFLAGS(namesv) & SVf_FAKE) 196 SvREFCNT_dec (av);
216 && *SvPVX(namesv) == '&' 197
217 && CvCLONE(ppad[ix])) 198 return 0;
218 { 199}
219 CV *kid = cv_clone((CV*)ppad[ix]); 200
220 SvREFCNT_dec(ppad[ix]); 201#define PERL_MAGIC_coro PERL_MAGIC_ext
221 CvCLONE_on(kid); 202
222 SvPADMY_on(kid); 203static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
223 npad[ix] = (SV*)kid; 204
224 } 205/* the next two functions merely cache the padlists */
206static void
207get_padlist (pTHX_ CV *cv)
208{
209 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
210
211 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
212 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj);
213 else
214 {
215#if 0
216 /* this should work - but it doesn't :( */
217 CV *cp = Perl_cv_clone (aTHX_ cv);
218 CvPADLIST (cv) = CvPADLIST (cp);
219 CvPADLIST (cp) = 0;
220 SvREFCNT_dec (cp);
221#else
222 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
223#endif
224 }
225}
226
227static void
228put_padlist (pTHX_ CV *cv)
229{
230 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
231
232 if (!mg)
233 {
234 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
235 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
236 mg->mg_virtual = &vtbl_coro;
237 mg->mg_obj = (SV *)newAV ();
225 } 238 }
226#endif
227 239
228 return newpadlist;
229}
230
231#ifdef MAY_FLUSH
232STATIC void
233free_padlist (AV *padlist)
234{
235 /* may be during global destruction */
236 if (SvREFCNT(padlist))
237 {
238 I32 i = AvFILLp(padlist);
239 while (i >= 0)
240 {
241 SV **svp = av_fetch(padlist, i--, FALSE);
242 SV *sv = svp ? *svp : Nullsv;
243 if (sv)
244 SvREFCNT_dec(sv);
245 }
246
247 SvREFCNT_dec((SV*)padlist);
248 }
249}
250#endif
251
252/* the next two functions merely cache the padlists */
253STATIC void
254get_padlist (CV *cv)
255{
256 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0);
257
258 if (he && AvFILLp ((AV *)*he) >= 0)
259 CvPADLIST (cv) = (AV *)av_pop ((AV *)*he);
260 else
261 CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
262}
263
264STATIC void
265put_padlist (CV *cv)
266{
267 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1);
268
269 if (SvTYPE (*he) != SVt_PVAV)
270 {
271 SvREFCNT_dec (*he);
272 *he = (SV *)newAV ();
273 }
274
275 av_push ((AV *)*he, (SV *)CvPADLIST (cv)); 240 av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv));
276} 241}
277
278#ifdef MAY_FLUSH
279STATIC void
280flush_padlist_cache ()
281{
282 HV *hv = padlist_cache;
283 padlist_cache = newHV ();
284
285 if (hv_iterinit (hv))
286 {
287 HE *he;
288 AV *padlist;
289
290 while (!!(he = hv_iternext (hv)))
291 {
292 AV *av = (AV *)HeVAL(he);
293
294 /* casting is fun. */
295 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
296 free_padlist (padlist);
297 }
298 }
299
300 SvREFCNT_dec (hv);
301}
302#endif
303 242
304#define SB do { 243#define SB do {
305#define SE } while (0) 244#define SE } while (0)
306 245
307#define LOAD(state) load_state(aTHX_ (state)); 246#define LOAD(state) load_state(aTHX_ (state));
… …
320 PL_mainstack = c->mainstack; 259 PL_mainstack = c->mainstack;
321 PL_stack_sp = c->stack_sp; 260 PL_stack_sp = c->stack_sp;
322 PL_op = c->op; 261 PL_op = c->op;
323 PL_curpad = c->curpad; 262 PL_curpad = c->curpad;
324 PL_comppad = c->comppad; 263 PL_comppad = c->comppad;
264 PL_compcv = c->compcv;
325 PL_stack_base = c->stack_base; 265 PL_stack_base = c->stack_base;
326 PL_stack_max = c->stack_max; 266 PL_stack_max = c->stack_max;
327 PL_tmps_stack = c->tmps_stack; 267 PL_tmps_stack = c->tmps_stack;
328 PL_tmps_floor = c->tmps_floor; 268 PL_tmps_floor = c->tmps_floor;
329 PL_tmps_ix = c->tmps_ix; 269 PL_tmps_ix = c->tmps_ix;
… …
335 PL_scopestack_ix = c->scopestack_ix; 275 PL_scopestack_ix = c->scopestack_ix;
336 PL_scopestack_max = c->scopestack_max; 276 PL_scopestack_max = c->scopestack_max;
337 PL_savestack = c->savestack; 277 PL_savestack = c->savestack;
338 PL_savestack_ix = c->savestack_ix; 278 PL_savestack_ix = c->savestack_ix;
339 PL_savestack_max = c->savestack_max; 279 PL_savestack_max = c->savestack_max;
280#if PERL_VERSION < 9
340 PL_retstack = c->retstack; 281 PL_retstack = c->retstack;
341 PL_retstack_ix = c->retstack_ix; 282 PL_retstack_ix = c->retstack_ix;
342 PL_retstack_max = c->retstack_max; 283 PL_retstack_max = c->retstack_max;
284#endif
285 PL_curpm = c->curpm;
343 PL_curcop = c->curcop; 286 PL_curcop = c->curcop;
344 PL_top_env = c->top_env; 287 PL_top_env = c->top_env;
345 288
346 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 289 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
347 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 290 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
… …
356 { 299 {
357 AV *padlist = (AV *)POPs; 300 AV *padlist = (AV *)POPs;
358 301
359 if (padlist) 302 if (padlist)
360 { 303 {
361 put_padlist (cv); /* mark this padlist as available */ 304 put_padlist (aTHX_ cv); /* mark this padlist as available */
362 CvPADLIST(cv) = padlist; 305 CvPADLIST(cv) = padlist;
363#ifdef USE_THREADS
364 /*CvOWNER(cv) = (struct perl_thread *)POPs;*/
365#endif
366 } 306 }
367 307
368 ++CvDEPTH(cv); 308 ++CvDEPTH(cv);
369 } 309 }
370 310
… …
397 if (CxTYPE(cx) == CXt_SUB) 337 if (CxTYPE(cx) == CXt_SUB)
398 { 338 {
399 CV *cv = cx->blk_sub.cv; 339 CV *cv = cx->blk_sub.cv;
400 if (CvDEPTH(cv)) 340 if (CvDEPTH(cv))
401 { 341 {
402#ifdef USE_THREADS
403 /*XPUSHs ((SV *)CvOWNER(cv));*/
404 /*CvOWNER(cv) = 0;*/
405 /*error must unlock this cv etc.. etc...*/
406#endif
407 EXTEND (SP, CvDEPTH(cv)*2); 342 EXTEND (SP, CvDEPTH(cv)*2);
408 343
409 while (--CvDEPTH(cv)) 344 while (--CvDEPTH(cv))
410 { 345 {
411 /* this tells the restore code to increment CvDEPTH */ 346 /* this tells the restore code to increment CvDEPTH */
… …
414 } 349 }
415 350
416 PUSHs ((SV *)CvPADLIST(cv)); 351 PUSHs ((SV *)CvPADLIST(cv));
417 PUSHs ((SV *)cv); 352 PUSHs ((SV *)cv);
418 353
419 get_padlist (cv); /* this is a monster */ 354 get_padlist (aTHX_ cv);
420 } 355 }
421 } 356 }
422#ifdef CXt_FORMAT 357#ifdef CXt_FORMAT
423 else if (CxTYPE(cx) == CXt_FORMAT) 358 else if (CxTYPE(cx) == CXt_FORMAT)
424 { 359 {
… …
452 c->mainstack = PL_mainstack; 387 c->mainstack = PL_mainstack;
453 c->stack_sp = PL_stack_sp; 388 c->stack_sp = PL_stack_sp;
454 c->op = PL_op; 389 c->op = PL_op;
455 c->curpad = PL_curpad; 390 c->curpad = PL_curpad;
456 c->comppad = PL_comppad; 391 c->comppad = PL_comppad;
392 c->compcv = PL_compcv;
457 c->stack_base = PL_stack_base; 393 c->stack_base = PL_stack_base;
458 c->stack_max = PL_stack_max; 394 c->stack_max = PL_stack_max;
459 c->tmps_stack = PL_tmps_stack; 395 c->tmps_stack = PL_tmps_stack;
460 c->tmps_floor = PL_tmps_floor; 396 c->tmps_floor = PL_tmps_floor;
461 c->tmps_ix = PL_tmps_ix; 397 c->tmps_ix = PL_tmps_ix;
… …
467 c->scopestack_ix = PL_scopestack_ix; 403 c->scopestack_ix = PL_scopestack_ix;
468 c->scopestack_max = PL_scopestack_max; 404 c->scopestack_max = PL_scopestack_max;
469 c->savestack = PL_savestack; 405 c->savestack = PL_savestack;
470 c->savestack_ix = PL_savestack_ix; 406 c->savestack_ix = PL_savestack_ix;
471 c->savestack_max = PL_savestack_max; 407 c->savestack_max = PL_savestack_max;
408#if PERL_VERSION < 9
472 c->retstack = PL_retstack; 409 c->retstack = PL_retstack;
473 c->retstack_ix = PL_retstack_ix; 410 c->retstack_ix = PL_retstack_ix;
474 c->retstack_max = PL_retstack_max; 411 c->retstack_max = PL_retstack_max;
412#endif
413 c->curpm = PL_curpm;
475 c->curcop = PL_curcop; 414 c->curcop = PL_curcop;
476 c->top_env = PL_top_env; 415 c->top_env = PL_top_env;
477} 416}
478 417
479/* 418/*
480 * allocate various perl stacks. This is an exact copy 419 * allocate various perl stacks. This is an exact copy
481 * of perl.c:init_stacks, except that it uses less memory 420 * of perl.c:init_stacks, except that it uses less memory
482 * on the assumption that coroutines do not usually need 421 * on the (sometimes correct) assumption that coroutines do
483 * a lot of stackspace. 422 * not usually need a lot of stackspace.
484 */ 423 */
485STATIC void 424static void
486coro_init_stacks (pTHX) 425coro_init_stacks (pTHX)
487{ 426{
427 LOCK;
428
488 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 429 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
489 PL_curstackinfo->si_type = PERLSI_MAIN; 430 PL_curstackinfo->si_type = PERLSI_MAIN;
490 PL_curstack = PL_curstackinfo->si_stack; 431 PL_curstack = PL_curstackinfo->si_stack;
491 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 432 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
492 433
… …
513 454
514 New(54,PL_savestack,96,ANY); 455 New(54,PL_savestack,96,ANY);
515 PL_savestack_ix = 0; 456 PL_savestack_ix = 0;
516 PL_savestack_max = 96; 457 PL_savestack_max = 96;
517 458
459#if PERL_VERSION < 9
518 New(54,PL_retstack,8,OP*); 460 New(54,PL_retstack,8,OP*);
519 PL_retstack_ix = 0; 461 PL_retstack_ix = 0;
520 PL_retstack_max = 8; 462 PL_retstack_max = 8;
463#endif
464
465 UNLOCK;
521} 466}
522 467
523/* 468/*
524 * destroy the stacks, the callchain etc... 469 * destroy the stacks, the callchain etc...
525 */ 470 */
526STATIC void 471static void
527destroy_stacks(pTHX) 472destroy_stacks(pTHX)
528{ 473{
529 if (!IN_DESTRUCT) 474 if (!IN_DESTRUCT)
530 { 475 {
531 /* is this ugly, I ask? */ 476 /* is this ugly, I ask? */
532 while (PL_scopestack_ix) 477 LEAVE_SCOPE (0);
533 LEAVE;
534 478
535 /* sure it is, but more important: is it correct?? :/ */ 479 /* sure it is, but more important: is it correct?? :/ */
536 while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
537 FREETMPS; 480 FREETMPS;
481
482 /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/
538 } 483 }
539 484
540 while (PL_curstackinfo->si_next) 485 while (PL_curstackinfo->si_next)
541 PL_curstackinfo = PL_curstackinfo->si_next; 486 PL_curstackinfo = PL_curstackinfo->si_next;
542 487
543 while (PL_curstackinfo) 488 while (PL_curstackinfo)
544 { 489 {
545 PERL_SI *p = PL_curstackinfo->si_prev; 490 PERL_SI *p = PL_curstackinfo->si_prev;
546 491
547 { 492 { /*D*//*remove*/
548 dSP; 493 dSP;
549 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); 494 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
550 PUTBACK; /* possibly superfluous */ 495 PUTBACK; /* possibly superfluous */
551 } 496 }
552 497
553 if (!IN_DESTRUCT) 498 if (!IN_DESTRUCT)
554 { 499 {
555 dounwind(-1); 500 dounwind (-1);/*D*//*remove*/
556 SvREFCNT_dec(PL_curstackinfo->si_stack); 501 SvREFCNT_dec (PL_curstackinfo->si_stack);
557 } 502 }
558 503
559 Safefree(PL_curstackinfo->si_cxstack); 504 Safefree (PL_curstackinfo->si_cxstack);
560 Safefree(PL_curstackinfo); 505 Safefree (PL_curstackinfo);
561 PL_curstackinfo = p; 506 PL_curstackinfo = p;
562 } 507 }
563 508
564 Safefree(PL_tmps_stack); 509 Safefree (PL_tmps_stack);
565 Safefree(PL_markstack); 510 Safefree (PL_markstack);
566 Safefree(PL_scopestack); 511 Safefree (PL_scopestack);
567 Safefree(PL_savestack); 512 Safefree (PL_savestack);
513#if PERL_VERSION < 9
568 Safefree(PL_retstack); 514 Safefree (PL_retstack);
515#endif
569} 516}
570 517
571static void 518static void
572allocate_stack (Coro__State ctx, int alloc) 519allocate_stack (Coro__State ctx, int alloc)
573{ 520{
… …
576 New (0, stack, 1, coro_stack); 523 New (0, stack, 1, coro_stack);
577 524
578 stack->refcnt = 1; 525 stack->refcnt = 1;
579 stack->usecnt = 1; 526 stack->usecnt = 1;
580 stack->gencnt = ctx->gencnt = 0; 527 stack->gencnt = ctx->gencnt = 0;
528
581 if (alloc) 529 if (alloc)
582 { 530 {
583#if HAVE_MMAP 531#if HAVE_MMAP
584 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ 532 stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
585 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 533 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
586 if (stack->sptr == (void *)-1) 534 if (stack->sptr == (void *)-1)
587#endif 535#endif
588 { 536 {
589 /*FIXME*//*D*//* reasonable stack size! */
590 stack->ssize = -4096 * sizeof (long); 537 stack->ssize = - (STACKSIZE * (long)sizeof (long));
591 New (0, stack->sptr, 4096, long); 538 New (0, stack->sptr, STACKSIZE, long);
592 } 539 }
593 } 540 }
594 else 541 else
595 stack->sptr = 0; 542 stack->sptr = 0;
596 543
… …
626setup_coro (void *arg) 573setup_coro (void *arg)
627{ 574{
628 /* 575 /*
629 * emulate part of the perl startup here. 576 * emulate part of the perl startup here.
630 */ 577 */
578 dTHX;
631 dSP; 579 dSP;
632 Coro__State ctx = (Coro__State)arg; 580 Coro__State ctx = (Coro__State)arg;
633 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); 581 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE);
634 582
635 coro_init_stacks (aTHX); 583 coro_init_stacks (aTHX);
636 /*PL_curcop = 0;*/ 584 /*PL_curcop = 0;*/
637 /*PL_in_eval = PL_in_eval;*/ /* inherit */ 585 /*PL_in_eval = PL_in_eval;*/ /* inherit */
638 SvREFCNT_dec (GvAV (PL_defgv)); 586 SvREFCNT_dec (GvAV (PL_defgv));
… …
684continue_coro (void *arg) 632continue_coro (void *arg)
685{ 633{
686 /* 634 /*
687 * this is a _very_ stripped down perl interpreter ;) 635 * this is a _very_ stripped down perl interpreter ;)
688 */ 636 */
637 dTHX;
689 Coro__State ctx = (Coro__State)arg; 638 Coro__State ctx = (Coro__State)arg;
690 JMPENV coro_start_env;
691 639
692 PL_top_env = &ctx->start_env; 640 PL_top_env = &ctx->start_env;
693 641
694 ctx->cursp = 0; 642 ctx->cursp = 0;
695 PL_op = PL_op->op_next; 643 PL_op = PL_op->op_next;
696 CALLRUNOPS(aTHX); 644 CALLRUNOPS(aTHX);
697 645
698 abort (); 646 abort ();
699} 647}
700 648
701STATIC void 649static void
702transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 650transfer (pTHX_ struct coro *prev, struct coro *next, int flags)
703{ 651{
704 dSTACKLEVEL; 652 dSTACKLEVEL;
705 static struct coro *xnext;
706 653
707 if (prev != next) 654 if (prev != next)
708 { 655 {
709 xnext = next;
710
711 if (next->mainstack) 656 if (next->mainstack)
712 { 657 {
658 LOCK;
713 SAVE (prev, flags); 659 SAVE (prev, flags);
714 LOAD (next); 660 LOAD (next);
661 UNLOCK;
715 662
716 /* mark this state as in-use */ 663 /* mark this state as in-use */
717 next->mainstack = 0; 664 next->mainstack = 0;
718 next->tmps_ix = -2; 665 next->tmps_ix = -2;
719 666
… …
738 continue_coro, (void *)next, 685 continue_coro, (void *)next,
739 next->stack->sptr, labs (next->stack->ssize)); 686 next->stack->sptr, labs (next->stack->ssize));
740 } 687 }
741 688
742 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 689 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
690 prev->cursp = stacklevel;
743 /* don't add any code here */ 691 /* don't add any code here */
744 } 692 }
745 693 else
694 next->cursp = stacklevel;
746 } 695 }
747 else if (next->tmps_ix == -2) 696 else if (next->tmps_ix == -2)
748 croak ("tried to transfer to running coroutine"); 697 croak ("tried to transfer to running coroutine");
749 else 698 else
750 { 699 {
700 LOCK;
751 SAVE (prev, -1); /* first get rid of the old state */ 701 SAVE (prev, -1); /* first get rid of the old state */
702 UNLOCK;
752 703
753 if (flags & TRANSFER_SAVE_CCTXT) 704 if (flags & TRANSFER_SAVE_CCTXT)
754 { 705 {
755 if (!prev->stack) 706 if (!prev->stack)
756 allocate_stack (prev, 0); 707 allocate_stack (prev, 0);
… …
758 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) 709 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
759 { 710 {
760 PL_top_env = &next->start_env; 711 PL_top_env = &next->start_env;
761 712
762 setup_coro (next); 713 setup_coro (next);
714 next->cursp = stacklevel;
763 715
764 prev->stack->refcnt++; 716 prev->stack->refcnt++;
765 prev->stack->usecnt++; 717 prev->stack->usecnt++;
766 next->stack = prev->stack; 718 next->stack = prev->stack;
767 next->gencnt = prev->gencnt; 719 next->gencnt = prev->gencnt;
… …
772 allocate_stack (next, 1); 724 allocate_stack (next, 1);
773 coro_create (&(next->stack->cctx), 725 coro_create (&(next->stack->cctx),
774 setup_coro, (void *)next, 726 setup_coro, (void *)next,
775 next->stack->sptr, labs (next->stack->ssize)); 727 next->stack->sptr, labs (next->stack->ssize));
776 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 728 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
729 prev->cursp = stacklevel;
777 /* don't add any code here */ 730 /* don't add any code here */
778 } 731 }
779 } 732 }
780 else 733 else
734 {
781 setup_coro (next); 735 setup_coro (next);
736 next->cursp = stacklevel;
737 }
782 } 738 }
783
784 /*
785 * xnext is now either prev or next, depending on wether
786 * we switched the c stack or not. that's why I use a global
787 * variable, that should become thread-specific at one point.
788 */
789 xnext->cursp = stacklevel;
790 } 739 }
791 740
741 LOCK;
792 if (coro_mortal) 742 if (coro_mortal)
793 { 743 {
794 SvREFCNT_dec (coro_mortal); 744 SvREFCNT_dec (coro_mortal);
795 coro_mortal = 0; 745 coro_mortal = 0;
796 } 746 }
747 UNLOCK;
797} 748}
798 749
799#define SV_CORO(sv,func) \ 750#define SV_CORO(sv,func) \
800 do { \ 751 do { \
801 if (SvROK (sv)) \ 752 if (SvROK (sv)) \
802 sv = SvRV (sv); \ 753 sv = SvRV (sv); \
803 \ 754 \
804 if (SvTYPE(sv) == SVt_PVHV) \ 755 if (SvTYPE (sv) == SVt_PVHV) \
805 { \ 756 { \
806 HE *he = hv_fetch_ent((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ 757 HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \
807 \ 758 \
808 if (!he) \ 759 if (!he) \
809 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ 760 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
810 \ 761 \
811 (sv) = SvRV (HeVAL(he)); \ 762 (sv) = SvRV (HeVAL(he)); \
812 } \ 763 } \
813 \ 764 \
814 /* must also be changed inside Coro::Cont::yield */ \ 765 /* must also be changed inside Coro::Cont::yield */ \
815 if (!SvOBJECT(sv) || SvSTASH(sv) != coro_state_stash) \ 766 if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \
816 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ 767 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
817 \ 768 \
818 } while(0) 769 } while(0)
819 770
820#define SvSTATE(sv) (struct coro *)SvIV (sv) 771#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
821 772
822static void 773static void
823api_transfer(pTHX_ SV *prev, SV *next, int flags) 774api_transfer(pTHX_ SV *prev, SV *next, int flags)
824{ 775{
825 SV_CORO (prev, "Coro::transfer"); 776 SV_CORO (prev, "Coro::transfer");
826 SV_CORO (next, "Coro::transfer"); 777 SV_CORO (next, "Coro::transfer");
827 778
828 transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags); 779 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
829} 780}
830 781
831/** Coro ********************************************************************/ 782/** Coro ********************************************************************/
832 783
833#define PRIO_MAX 3 784#define PRIO_MAX 3
… …
841static GV *coro_current, *coro_idle; 792static GV *coro_current, *coro_idle;
842static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; 793static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
843static int coro_nready; 794static int coro_nready;
844 795
845static void 796static void
846coro_enq (SV *sv) 797coro_enq (pTHX_ SV *sv)
847{ 798{
799 SV **xprio;
800 int prio;
801
848 if (SvTYPE (sv) == SVt_PVHV) 802 if (SvTYPE (sv) != SVt_PVHV)
849 {
850 SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
851 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
852
853 prio = prio > PRIO_MAX ? PRIO_MAX
854 : prio < PRIO_MIN ? PRIO_MIN
855 : prio;
856
857 av_push (coro_ready [prio - PRIO_MIN], sv);
858 coro_nready++;
859
860 return;
861 }
862
863 croak ("Coro::ready tried to enqueue something that is not a coroutine"); 803 croak ("Coro::ready tried to enqueue something that is not a coroutine");
804
805 xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
806 prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
807
808 prio = prio > PRIO_MAX ? PRIO_MAX
809 : prio < PRIO_MIN ? PRIO_MIN
810 : prio;
811
812 av_push (coro_ready [prio - PRIO_MIN], sv);
813 coro_nready++;
864} 814}
865 815
866static SV * 816static SV *
867coro_deq (int min_prio) 817coro_deq (pTHX_ int min_prio)
868{ 818{
869 int prio = PRIO_MAX - PRIO_MIN; 819 int prio = PRIO_MAX - PRIO_MIN;
870 820
871 min_prio -= PRIO_MIN; 821 min_prio -= PRIO_MIN;
872 if (min_prio < 0) 822 if (min_prio < 0)
… …
883} 833}
884 834
885static void 835static void
886api_ready (SV *coro) 836api_ready (SV *coro)
887{ 837{
838 dTHX;
839
888 if (SvROK (coro)) 840 if (SvROK (coro))
889 coro = SvRV (coro); 841 coro = SvRV (coro);
890 842
843 LOCK;
891 coro_enq (SvREFCNT_inc (coro)); 844 coro_enq (aTHX_ SvREFCNT_inc (coro));
845 UNLOCK;
892} 846}
893 847
894static void 848static void
895api_schedule (void) 849api_schedule (void)
896{ 850{
851 dTHX;
852
897 SV *prev, *next; 853 SV *prev, *next;
898 854
855 LOCK;
856
899 prev = SvRV (GvSV (coro_current)); 857 prev = SvRV (GvSV (coro_current));
900 next = coro_deq (PRIO_MIN); 858 next = coro_deq (aTHX_ PRIO_MIN);
901 859
902 if (!next) 860 if (!next)
903 next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); 861 next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
904 862
905 /* free this only after the transfer */ 863 /* free this only after the transfer */
… …
908 866
909 SvRV (GvSV (coro_current)) = next; 867 SvRV (GvSV (coro_current)) = next;
910 868
911 SV_CORO (next, "Coro::schedule"); 869 SV_CORO (next, "Coro::schedule");
912 870
871 UNLOCK;
872
913 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), 873 transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
914 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); 874 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK);
915} 875}
916 876
917static void 877static void
918api_cede (void) 878api_cede (void)
919{ 879{
880 dTHX;
881
882 LOCK;
920 coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); 883 coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
884 UNLOCK;
921 885
922 api_schedule (); 886 api_schedule ();
923} 887}
924 888
925MODULE = Coro::State PACKAGE = Coro::State 889MODULE = Coro::State PACKAGE = Coro::State
926 890
927PROTOTYPES: ENABLE 891PROTOTYPES: ENABLE
928 892
929BOOT: 893BOOT:
930{ /* {} necessary for stoopid perl-5.6.x */ 894{ /* {} necessary for stoopid perl-5.6.x */
895#ifdef USE_ITHREADS
896 MUTEX_INIT (&coro_mutex);
897#endif
898
931 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); 899 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
932 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); 900 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
933 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 901 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
934 902
935 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); 903 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
936 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); 904 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
937 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); 905 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
938 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); 906 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
939
940 if (!padlist_cache)
941 padlist_cache = newHV ();
942 907
943 main_mainstack = PL_mainstack; 908 main_mainstack = PL_mainstack;
944 909
945 coroapi.ver = CORO_API_VERSION; 910 coroapi.ver = CORO_API_VERSION;
946 coroapi.transfer = api_transfer; 911 coroapi.transfer = api_transfer;
… …
957 croak ("Coro::State::_newprocess expects an arrayref"); 922 croak ("Coro::State::_newprocess expects an arrayref");
958 923
959 Newz (0, coro, 1, struct coro); 924 Newz (0, coro, 1, struct coro);
960 925
961 coro->args = (AV *)SvREFCNT_inc (SvRV (args)); 926 coro->args = (AV *)SvREFCNT_inc (SvRV (args));
962 coro->mainstack = 0; /* actual work is done inside transfer */ 927 /*coro->mainstack = 0; *//*actual work is done inside transfer */
963 coro->stack = 0; 928 /*coro->stack = 0;*/
964 929
965 /* same as JMPENV_BOOTSTRAP */ 930 /* same as JMPENV_BOOTSTRAP */
966 /* we might be able to recycle start_env, but safe is safe */ 931 /* we might be able to recycle start_env, but safe is safe */
967 //Zero(&coro->start_env, 1, JMPENV); 932 /*Zero(&coro->start_env, 1, JMPENV);*/
968 coro->start_env.je_ret = -1; 933 coro->start_env.je_ret = -1;
969 coro->start_env.je_mustcatch = TRUE; 934 coro->start_env.je_mustcatch = TRUE;
970 935
971 RETVAL = coro; 936 RETVAL = coro;
972 OUTPUT: 937 OUTPUT:
… …
993 if (coro->mainstack && coro->mainstack != main_mainstack) 958 if (coro->mainstack && coro->mainstack != main_mainstack)
994 { 959 {
995 struct coro temp; 960 struct coro temp;
996 961
997 PUTBACK; 962 PUTBACK;
998 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 963 SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
999 LOAD(aTHX_ coro); 964 LOAD (aTHX_ coro);
1000 SPAGAIN; 965 SPAGAIN;
1001 966
1002 destroy_stacks (aTHX); 967 destroy_stacks (aTHX);
1003 968
1004 LOAD((&temp)); /* this will get rid of defsv etc.. */ 969 LOAD ((&temp)); /* this will get rid of defsv etc.. */
1005 SPAGAIN; 970 SPAGAIN;
1006 971
1007 coro->mainstack = 0; 972 coro->mainstack = 0;
1008 } 973 }
1009 974
1010 deallocate_stack (coro); 975 deallocate_stack (coro);
1011 SvREFCNT_dec (coro->args); 976 SvREFCNT_dec (coro->args);
1012 Safefree (coro); 977 Safefree (coro);
1013
1014void
1015flush()
1016 CODE:
1017#ifdef MAY_FLUSH
1018 flush_padlist_cache ();
1019#endif
1020 978
1021void 979void
1022_exit(code) 980_exit(code)
1023 int code 981 int code
1024 PROTOTYPE: $ 982 PROTOTYPE: $
1025 CODE: 983 CODE:
1026#if defined(__GLIBC__) || _POSIX_C_SOURCE
1027 _exit (code); 984 _exit (code);
1028#else
1029 signal (SIGTERM, SIG_DFL);
1030 raise (SIGTERM);
1031 exit (code);
1032#endif
1033 985
1034MODULE = Coro::State PACKAGE = Coro::Cont 986MODULE = Coro::State PACKAGE = Coro::Cont
1035 987
1036# this is slightly dirty (should expose a c-level api) 988# this is slightly dirty (should expose a c-level api)
1037 989
1038void 990void
1039yield(...) 991yield(...)
1040 PROTOTYPE: @ 992 PROTOTYPE: @
1041 CODE: 993 CODE:
1042 static SV *returnstk; 994 SV *yieldstack;
1043 SV *sv; 995 SV *sv;
1044 AV *defav = GvAV (PL_defgv); 996 AV *defav = GvAV (PL_defgv);
1045 struct coro *prev, *next; 997 struct coro *prev, *next;
1046 998
1047 if (!returnstk) 999 yieldstack = *hv_fetch (
1048 returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE)); 1000 (HV *)SvRV (GvSV (coro_current)),
1001 "yieldstack", sizeof ("yieldstack") - 1,
1002 0
1003 );
1049 1004
1050 /* set up @_ -- ugly */ 1005 /* set up @_ -- ugly */
1051 av_clear (defav); 1006 av_clear (defav);
1052 av_fill (defav, items - 1); 1007 av_fill (defav, items - 1);
1053 while (items--) 1008 while (items--)
1054 av_store (defav, items, SvREFCNT_inc (ST(items))); 1009 av_store (defav, items, SvREFCNT_inc (ST(items)));
1055 1010
1056 mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1057 sv = av_pop ((AV *)SvRV (returnstk)); 1011 sv = av_pop ((AV *)SvRV (yieldstack));
1058 prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); 1012 prev = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))));
1059 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); 1013 next = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))));
1060 SvREFCNT_dec (sv); 1014 SvREFCNT_dec (sv);
1061 1015
1062 transfer(aTHX_ prev, next, 0); 1016 transfer (aTHX_ prev, next, 0);
1063 1017
1064MODULE = Coro::State PACKAGE = Coro 1018MODULE = Coro::State PACKAGE = Coro
1065 1019
1066# this is slightly dirty (should expose a c-level api) 1020# this is slightly dirty (should expose a c-level api)
1067 1021
… …
1096 sv_setiv(sv, (IV)&coroapi); 1050 sv_setiv(sv, (IV)&coroapi);
1097 SvREADONLY_on(sv); 1051 SvREADONLY_on(sv);
1098 } 1052 }
1099} 1053}
1100 1054
1055#if !PERL_MICRO
1056
1101void 1057void
1102ready(self) 1058ready(self)
1103 SV * self 1059 SV * self
1104 PROTOTYPE: $ 1060 PROTOTYPE: $
1105 CODE: 1061 CODE:
1106 api_ready (self); 1062 api_ready (self);
1063
1064#endif
1107 1065
1108int 1066int
1109nready(...) 1067nready(...)
1110 PROTOTYPE: 1068 PROTOTYPE:
1111 CODE: 1069 CODE:
… …
1123cede(...) 1081cede(...)
1124 PROTOTYPE: 1082 PROTOTYPE:
1125 CODE: 1083 CODE:
1126 api_cede (); 1084 api_cede ();
1127 1085
1086# and these are hacks
1087SV *
1088_aio_get_state ()
1089 CODE:
1090{
1091 struct {
1092 int errorno;
1093 int laststype;
1094 int laststatval;
1095 Stat_t statcache;
1096 } data;
1097
1098 data.errorno = errno;
1099 data.laststype = PL_laststype;
1100 data.laststatval = PL_laststatval;
1101 data.statcache = PL_statcache;
1102
1103 RETVAL = newSVpvn ((char *)&data, sizeof data);
1104}
1105 OUTPUT:
1106 RETVAL
1107
1108void
1109_aio_set_state (char *data_)
1110 PROTOTYPE: $
1111 CODE:
1112{
1113 struct {
1114 int errorno;
1115 int laststype;
1116 int laststatval;
1117 Stat_t statcache;
1118 } *data = (void *)data_;
1119
1120 errno = data->errorno;
1121 PL_laststype = data->laststype;
1122 PL_laststatval = data->laststatval;
1123 PL_statcache = data->statcache;
1124}

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