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Comparing Coro/Coro/State.xs (file contents):
Revision 1.65 by root, Mon Dec 5 23:50:48 2005 UTC vs.
Revision 1.78 by root, Wed Nov 1 01:21:21 2006 UTC

… …
27# ifndef IS_PADCONST 27# ifndef IS_PADCONST
28# define IS_PADCONST(v) 0 28# define IS_PADCONST(v) 0
29# endif 29# endif
30#endif 30#endif
31 31
32#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
33 41
34#ifdef HAVE_MMAP 42#ifdef HAVE_MMAP
35# include <unistd.h> 43# include <unistd.h>
36# include <sys/mman.h> 44# include <sys/mman.h>
37# ifndef MAP_ANONYMOUS 45# ifndef MAP_ANONYMOUS
… …
39# define MAP_ANONYMOUS MAP_ANON 47# define MAP_ANONYMOUS MAP_ANON
40# else 48# else
41# undef HAVE_MMAP 49# undef HAVE_MMAP
42# endif 50# endif
43# 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
44#endif 60#endif
45 61
46#define SUB_INIT "Coro::State::initialize" 62#define SUB_INIT "Coro::State::initialize"
47#define UCORO_STATE "_coro_state" 63#define UCORO_STATE "_coro_state"
48 64
… …
57 73
58#include "CoroAPI.h" 74#include "CoroAPI.h"
59 75
60#ifdef USE_ITHREADS 76#ifdef USE_ITHREADS
61static perl_mutex coro_mutex; 77static perl_mutex coro_mutex;
62# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 78# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
63# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) 79# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
64#else 80#else
65# define LOCK 0 81# define LOCK (void)0
66# define UNLOCK 0 82# define UNLOCK (void)0
67#endif 83#endif
68 84
69static struct CoroAPI coroapi; 85static struct CoroAPI coroapi;
70static AV *main_mainstack; /* used to differentiate between $main and others */ 86static AV *main_mainstack; /* used to differentiate between $main and others */
71static HV *coro_state_stash; 87static HV *coro_state_stash;
… …
128 I32 savestack_ix; 144 I32 savestack_ix;
129 I32 savestack_max; 145 I32 savestack_max;
130 OP **retstack; 146 OP **retstack;
131 I32 retstack_ix; 147 I32 retstack_ix;
132 I32 retstack_max; 148 I32 retstack_max;
149 PMOP *curpm;
133 COP *curcop; 150 COP *curcop;
134 JMPENV *top_env; 151 JMPENV *top_env;
135 152
136 /* data associated with this coroutine (initial args) */ 153 /* data associated with this coroutine (initial args) */
137 AV *args; 154 AV *args;
138}; 155};
139 156
140typedef struct coro *Coro__State; 157typedef struct coro *Coro__State;
141typedef struct coro *Coro__State_or_hashref; 158typedef struct coro *Coro__State_or_hashref;
142 159
143/* mostly copied from op.c:cv_clone2 */ 160static AV *
144STATIC AV * 161coro_clone_padlist (pTHX_ CV *cv)
145clone_padlist (pTHX_ AV *protopadlist)
146{ 162{
147 AV *av; 163 AV *padlist = CvPADLIST (cv);
148 I32 ix;
149 AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE);
150 AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE);
151 SV **pname = AvARRAY (protopad_name);
152 SV **ppad = AvARRAY (protopad);
153 I32 fname = AvFILLp (protopad_name);
154 I32 fpad = AvFILLp (protopad);
155 AV *newpadlist, *newpad_name, *newpad; 164 AV *newpadlist, *newpad;
156 SV **npad;
157
158 newpad_name = newAV ();
159 for (ix = fname; ix >= 0; ix--)
160 av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
161
162 newpad = newAV ();
163 av_fill (newpad, AvFILLp (protopad));
164 npad = AvARRAY (newpad);
165 165
166 newpadlist = newAV (); 166 newpadlist = newAV ();
167 AvREAL_off (newpadlist); 167 AvREAL_off (newpadlist);
168 av_store (newpadlist, 0, (SV *) newpad_name); 168 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
169 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
170 --AvFILLp (padlist);
171
172 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
169 av_store (newpadlist, 1, (SV *) newpad); 173 av_store (newpadlist, 1, (SV *)newpad);
170
171 av = newAV (); /* will be @_ */
172 av_extend (av, 0);
173 av_store (newpad, 0, (SV *) av);
174 AvFLAGS (av) = AVf_REIFY;
175
176 for (ix = fpad; ix > 0; ix--)
177 {
178 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
179
180 if (namesv && namesv != &PL_sv_undef)
181 {
182 char *name = SvPVX (namesv); /* XXX */
183
184 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&')
185 { /* lexical from outside? */
186 npad[ix] = SvREFCNT_inc (ppad[ix]);
187 }
188 else
189 { /* our own lexical */
190 SV *sv;
191 if (*name == '&')
192 sv = SvREFCNT_inc (ppad[ix]);
193 else if (*name == '@')
194 sv = (SV *) newAV ();
195 else if (*name == '%')
196 sv = (SV *) newHV ();
197 else
198 sv = NEWSV (0, 0);
199
200#ifdef SvPADBUSY
201 if (!SvPADBUSY (sv))
202#endif
203 SvPADMY_on (sv);
204
205 npad[ix] = sv;
206 }
207 }
208 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix]))
209 {
210 npad[ix] = SvREFCNT_inc (ppad[ix]);
211 }
212 else
213 {
214 SV *sv = NEWSV (0, 0);
215 SvPADTMP_on (sv);
216 npad[ix] = sv;
217 }
218 }
219
220#if 0 /* return -ENOTUNDERSTOOD */
221 /* Now that vars are all in place, clone nested closures. */
222
223 for (ix = fpad; ix > 0; ix--) {
224 SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;
225 if (namesv
226 && namesv != &PL_sv_undef
227 && !(SvFLAGS(namesv) & SVf_FAKE)
228 && *SvPVX(namesv) == '&'
229 && CvCLONE(ppad[ix]))
230 {
231 CV *kid = cv_clone((CV*)ppad[ix]);
232 SvREFCNT_dec(ppad[ix]);
233 CvCLONE_on(kid);
234 SvPADMY_on(kid);
235 npad[ix] = (SV*)kid;
236 }
237 }
238#endif
239 174
240 return newpadlist; 175 return newpadlist;
241} 176}
242 177
243STATIC void 178static void
244free_padlist (pTHX_ AV *padlist) 179free_padlist (pTHX_ AV *padlist)
245{ 180{
246 /* may be during global destruction */ 181 /* may be during global destruction */
247 if (SvREFCNT (padlist)) 182 if (SvREFCNT (padlist))
248 { 183 {
… …
262 197
263 SvREFCNT_dec ((SV*)padlist); 198 SvREFCNT_dec ((SV*)padlist);
264 } 199 }
265} 200}
266 201
267STATIC int 202static int
268coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 203coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
269{ 204{
270 AV *padlist; 205 AV *padlist;
271 AV *av = (AV *)mg->mg_obj; 206 AV *av = (AV *)mg->mg_obj;
272 207
273 /* casting is fun. */ 208 /* casting is fun. */
274 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 209 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
275 free_padlist (aTHX_ padlist); 210 free_padlist (aTHX_ padlist);
276 211
277 SvREFCNT_dec (av); 212 SvREFCNT_dec (av);
213
214 return 0;
278} 215}
279 216
280#define PERL_MAGIC_coro PERL_MAGIC_ext 217#define PERL_MAGIC_coro PERL_MAGIC_ext
281 218
282static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; 219static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
283 220
284/* the next two functions merely cache the padlists */ 221/* the next two functions merely cache the padlists */
285STATIC void 222static void
286get_padlist (pTHX_ CV *cv) 223get_padlist (pTHX_ CV *cv)
287{ 224{
288 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 225 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
289 226
290 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) 227 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
291 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); 228 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj);
292 else 229 else
230 {
231#if 0
232 /* this should work - but it doesn't :( */
233 CV *cp = Perl_cv_clone (aTHX_ cv);
234 CvPADLIST (cv) = CvPADLIST (cp);
235 CvPADLIST (cp) = 0;
236 SvREFCNT_dec (cp);
237#else
293 CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv)); 238 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
239#endif
240 }
294} 241}
295 242
296STATIC void 243static void
297put_padlist (pTHX_ CV *cv) 244put_padlist (pTHX_ CV *cv)
298{ 245{
299 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 246 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
300 247
301 if (!mg) 248 if (!mg)
… …
344 PL_scopestack_ix = c->scopestack_ix; 291 PL_scopestack_ix = c->scopestack_ix;
345 PL_scopestack_max = c->scopestack_max; 292 PL_scopestack_max = c->scopestack_max;
346 PL_savestack = c->savestack; 293 PL_savestack = c->savestack;
347 PL_savestack_ix = c->savestack_ix; 294 PL_savestack_ix = c->savestack_ix;
348 PL_savestack_max = c->savestack_max; 295 PL_savestack_max = c->savestack_max;
296#if PERL_VERSION < 9
349 PL_retstack = c->retstack; 297 PL_retstack = c->retstack;
350 PL_retstack_ix = c->retstack_ix; 298 PL_retstack_ix = c->retstack_ix;
351 PL_retstack_max = c->retstack_max; 299 PL_retstack_max = c->retstack_max;
300#endif
301 PL_curpm = c->curpm;
352 PL_curcop = c->curcop; 302 PL_curcop = c->curcop;
353 PL_top_env = c->top_env; 303 PL_top_env = c->top_env;
354 304
355 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 305 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
356 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 306 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
… …
415 } 365 }
416 366
417 PUSHs ((SV *)CvPADLIST(cv)); 367 PUSHs ((SV *)CvPADLIST(cv));
418 PUSHs ((SV *)cv); 368 PUSHs ((SV *)cv);
419 369
420 get_padlist (aTHX_ cv); /* this is a monster */ 370 get_padlist (aTHX_ cv);
421 } 371 }
422 } 372 }
423#ifdef CXt_FORMAT 373#ifdef CXt_FORMAT
424 else if (CxTYPE(cx) == CXt_FORMAT) 374 else if (CxTYPE(cx) == CXt_FORMAT)
425 { 375 {
… …
469 c->scopestack_ix = PL_scopestack_ix; 419 c->scopestack_ix = PL_scopestack_ix;
470 c->scopestack_max = PL_scopestack_max; 420 c->scopestack_max = PL_scopestack_max;
471 c->savestack = PL_savestack; 421 c->savestack = PL_savestack;
472 c->savestack_ix = PL_savestack_ix; 422 c->savestack_ix = PL_savestack_ix;
473 c->savestack_max = PL_savestack_max; 423 c->savestack_max = PL_savestack_max;
424#if PERL_VERSION < 9
474 c->retstack = PL_retstack; 425 c->retstack = PL_retstack;
475 c->retstack_ix = PL_retstack_ix; 426 c->retstack_ix = PL_retstack_ix;
476 c->retstack_max = PL_retstack_max; 427 c->retstack_max = PL_retstack_max;
428#endif
429 c->curpm = PL_curpm;
477 c->curcop = PL_curcop; 430 c->curcop = PL_curcop;
478 c->top_env = PL_top_env; 431 c->top_env = PL_top_env;
479} 432}
480 433
481/* 434/*
482 * allocate various perl stacks. This is an exact copy 435 * allocate various perl stacks. This is an exact copy
483 * of perl.c:init_stacks, except that it uses less memory 436 * of perl.c:init_stacks, except that it uses less memory
484 * on the (sometimes correct) assumption that coroutines do 437 * on the (sometimes correct) assumption that coroutines do
485 * not usually need a lot of stackspace. 438 * not usually need a lot of stackspace.
486 */ 439 */
487STATIC void 440static void
488coro_init_stacks (pTHX) 441coro_init_stacks (pTHX)
489{ 442{
490 LOCK; 443 LOCK;
491 444
492 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 445 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
… …
517 470
518 New(54,PL_savestack,96,ANY); 471 New(54,PL_savestack,96,ANY);
519 PL_savestack_ix = 0; 472 PL_savestack_ix = 0;
520 PL_savestack_max = 96; 473 PL_savestack_max = 96;
521 474
475#if PERL_VERSION < 9
522 New(54,PL_retstack,8,OP*); 476 New(54,PL_retstack,8,OP*);
523 PL_retstack_ix = 0; 477 PL_retstack_ix = 0;
524 PL_retstack_max = 8; 478 PL_retstack_max = 8;
479#endif
525 480
526 UNLOCK; 481 UNLOCK;
527} 482}
528 483
529/* 484/*
530 * destroy the stacks, the callchain etc... 485 * destroy the stacks, the callchain etc...
531 */ 486 */
532STATIC void 487static void
533destroy_stacks(pTHX) 488destroy_stacks(pTHX)
534{ 489{
535 if (!IN_DESTRUCT) 490 if (!IN_DESTRUCT)
536 { 491 {
537 /* is this ugly, I ask? */ 492 /* is this ugly, I ask? */
… …
569 524
570 Safefree (PL_tmps_stack); 525 Safefree (PL_tmps_stack);
571 Safefree (PL_markstack); 526 Safefree (PL_markstack);
572 Safefree (PL_scopestack); 527 Safefree (PL_scopestack);
573 Safefree (PL_savestack); 528 Safefree (PL_savestack);
529#if PERL_VERSION < 9
574 Safefree (PL_retstack); 530 Safefree (PL_retstack);
531#endif
575} 532}
576 533
577static void 534static void
578allocate_stack (Coro__State ctx, int alloc) 535allocate_stack (Coro__State ctx, int alloc)
579{ 536{
… …
586 stack->gencnt = ctx->gencnt = 0; 543 stack->gencnt = ctx->gencnt = 0;
587 544
588 if (alloc) 545 if (alloc)
589 { 546 {
590#if HAVE_MMAP 547#if HAVE_MMAP
591 stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */ 548 stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
592 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 549 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
593 if (stack->sptr == (void *)-1) 550 if (stack->sptr != (void *)-1)
594#endif
595 { 551 {
596 /*FIXME*//*D*//* reasonable stack size! */ 552# if STACKGUARD
553 mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
554# endif
555 }
556 else
557#endif
558 {
597 stack->ssize = - (8192 * sizeof (long)); 559 stack->ssize = - (STACKSIZE * (long)sizeof (long));
598 New (0, stack->sptr, 8192, long); 560 New (0, stack->sptr, STACKSIZE, long);
599 } 561 }
600 } 562 }
601 else 563 else
602 stack->sptr = 0; 564 stack->sptr = 0;
603 565
… …
694 /* 656 /*
695 * this is a _very_ stripped down perl interpreter ;) 657 * this is a _very_ stripped down perl interpreter ;)
696 */ 658 */
697 dTHX; 659 dTHX;
698 Coro__State ctx = (Coro__State)arg; 660 Coro__State ctx = (Coro__State)arg;
699 JMPENV coro_start_env;
700 661
701 PL_top_env = &ctx->start_env; 662 PL_top_env = &ctx->start_env;
702 663
703 ctx->cursp = 0; 664 ctx->cursp = 0;
704 PL_op = PL_op->op_next; 665 PL_op = PL_op->op_next;
705 CALLRUNOPS(aTHX); 666 CALLRUNOPS(aTHX);
706 667
707 abort (); 668 abort ();
708} 669}
709 670
710STATIC void 671static void
711transfer (pTHX_ struct coro *prev, struct coro *next, int flags) 672transfer (pTHX_ struct coro *prev, struct coro *next, int flags)
712{ 673{
713 dSTACKLEVEL; 674 dSTACKLEVEL;
714 675
715 if (prev != next) 676 if (prev != next)
… …
827 if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ 788 if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \
828 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ 789 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
829 \ 790 \
830 } while(0) 791 } while(0)
831 792
832#define SvSTATE(sv) (struct coro *)SvIV (sv) 793#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
833 794
834static void 795static void
835api_transfer(pTHX_ SV *prev, SV *next, int flags) 796api_transfer(pTHX_ SV *prev, SV *next, int flags)
836{ 797{
837 SV_CORO (prev, "Coro::transfer"); 798 SV_CORO (prev, "Coro::transfer");
… …
855static int coro_nready; 816static int coro_nready;
856 817
857static void 818static void
858coro_enq (pTHX_ SV *sv) 819coro_enq (pTHX_ SV *sv)
859{ 820{
821 SV **xprio;
822 int prio;
823
860 if (SvTYPE (sv) == SVt_PVHV) 824 if (SvTYPE (sv) != SVt_PVHV)
861 {
862 SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
863 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
864
865 prio = prio > PRIO_MAX ? PRIO_MAX
866 : prio < PRIO_MIN ? PRIO_MIN
867 : prio;
868
869 av_push (coro_ready [prio - PRIO_MIN], sv);
870 coro_nready++;
871
872 return;
873 }
874
875 croak ("Coro::ready tried to enqueue something that is not a coroutine"); 825 croak ("Coro::ready tried to enqueue something that is not a coroutine");
826
827 xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
828 prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
829
830 prio = prio > PRIO_MAX ? PRIO_MAX
831 : prio < PRIO_MIN ? PRIO_MIN
832 : prio;
833
834 av_push (coro_ready [prio - PRIO_MIN], sv);
835 coro_nready++;
876} 836}
877 837
878static SV * 838static SV *
879coro_deq (pTHX_ int min_prio) 839coro_deq (pTHX_ int min_prio)
880{ 840{
… …
955BOOT: 915BOOT:
956{ /* {} necessary for stoopid perl-5.6.x */ 916{ /* {} necessary for stoopid perl-5.6.x */
957#ifdef USE_ITHREADS 917#ifdef USE_ITHREADS
958 MUTEX_INIT (&coro_mutex); 918 MUTEX_INIT (&coro_mutex);
959#endif 919#endif
920 BOOT_PAGESIZE;
960 921
961 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); 922 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
962 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); 923 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
963 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 924 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
964 925
… …
1069 av_fill (defav, items - 1); 1030 av_fill (defav, items - 1);
1070 while (items--) 1031 while (items--)
1071 av_store (defav, items, SvREFCNT_inc (ST(items))); 1032 av_store (defav, items, SvREFCNT_inc (ST(items)));
1072 1033
1073 sv = av_pop ((AV *)SvRV (yieldstack)); 1034 sv = av_pop ((AV *)SvRV (yieldstack));
1074 prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); 1035 prev = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))));
1075 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); 1036 next = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))));
1076 SvREFCNT_dec (sv); 1037 SvREFCNT_dec (sv);
1077 1038
1078 transfer (aTHX_ prev, next, 0); 1039 transfer (aTHX_ prev, next, 0);
1079 1040
1080MODULE = Coro::State PACKAGE = Coro 1041MODULE = Coro::State PACKAGE = Coro
… …
1143cede(...) 1104cede(...)
1144 PROTOTYPE: 1105 PROTOTYPE:
1145 CODE: 1106 CODE:
1146 api_cede (); 1107 api_cede ();
1147 1108
1109# and these are hacks
1110SV *
1111_aio_get_state ()
1112 CODE:
1113{
1114 struct {
1115 int errorno;
1116 int laststype;
1117 int laststatval;
1118 Stat_t statcache;
1119 } data;
1120
1121 data.errorno = errno;
1122 data.laststype = PL_laststype;
1123 data.laststatval = PL_laststatval;
1124 data.statcache = PL_statcache;
1125
1126 RETVAL = newSVpvn ((char *)&data, sizeof data);
1127}
1128 OUTPUT:
1129 RETVAL
1130
1131void
1132_aio_set_state (char *data_)
1133 PROTOTYPE: $
1134 CODE:
1135{
1136 struct {
1137 int errorno;
1138 int laststype;
1139 int laststatval;
1140 Stat_t statcache;
1141 } *data = (void *)data_;
1142
1143 errno = data->errorno;
1144 PL_laststype = data->laststype;
1145 PL_laststatval = data->laststatval;
1146 PL_statcache = data->statcache;
1147}

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