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Comparing Coro/Coro/State.xs (file contents):
Revision 1.46 by pcg, Wed Nov 5 20:02:46 2003 UTC vs.
Revision 1.78 by root, Wed Nov 1 01:21:21 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
42#endif 59# endif
43 60#endif
44#define MAY_FLUSH /* increases codesize and is rarely used */
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
49/* The next macro should declare a variable stacklevel that contains and approximation 65/* The next macro should declare a variable stacklevel that contains and approximation
… …
55 71
56#define labs(l) ((l) >= 0 ? (l) : -(l)) 72#define labs(l) ((l) >= 0 ? (l) : -(l))
57 73
58#include "CoroAPI.h" 74#include "CoroAPI.h"
59 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
60static 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 */
61 91
62/* 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... */
63typedef struct { 93typedef struct {
64 int refcnt; /* pointer reference counter */ 94 int refcnt; /* pointer reference counter */
65 int usecnt; /* shared by how many coroutines */ 95 int usecnt; /* shared by how many coroutines */
… …
95 AV *mainstack; 125 AV *mainstack;
96 SV **stack_sp; 126 SV **stack_sp;
97 OP *op; 127 OP *op;
98 SV **curpad; 128 SV **curpad;
99 AV *comppad; 129 AV *comppad;
130 CV *compcv;
100 SV **stack_base; 131 SV **stack_base;
101 SV **stack_max; 132 SV **stack_max;
102 SV **tmps_stack; 133 SV **tmps_stack;
103 I32 tmps_floor; 134 I32 tmps_floor;
104 I32 tmps_ix; 135 I32 tmps_ix;
… …
113 I32 savestack_ix; 144 I32 savestack_ix;
114 I32 savestack_max; 145 I32 savestack_max;
115 OP **retstack; 146 OP **retstack;
116 I32 retstack_ix; 147 I32 retstack_ix;
117 I32 retstack_max; 148 I32 retstack_max;
149 PMOP *curpm;
118 COP *curcop; 150 COP *curcop;
119 JMPENV *top_env; 151 JMPENV *top_env;
120 152
121 /* data associated with this coroutine (initial args) */ 153 /* data associated with this coroutine (initial args) */
122 AV *args; 154 AV *args;
123}; 155};
124 156
125typedef struct coro *Coro__State; 157typedef struct coro *Coro__State;
126typedef struct coro *Coro__State_or_hashref; 158typedef struct coro *Coro__State_or_hashref;
127 159
128static AV *main_mainstack; /* used to differentiate between $main and others */ 160static AV *
129static HV *coro_state_stash; 161coro_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{ 162{
139 AV *av; 163 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; 164 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);
157 165
158 newpadlist = newAV (); 166 newpadlist = newAV ();
159 AvREAL_off (newpadlist); 167 AvREAL_off (newpadlist);
160 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)));
161 av_store (newpadlist, 1, (SV *) newpad); 173 av_store (newpadlist, 1, (SV *)newpad);
162 174
163 av = newAV (); /* will be @_ */ 175 return newpadlist;
164 av_extend (av, 0); 176}
165 av_store (newpad, 0, (SV *) av);
166 AvFLAGS (av) = AVf_REIFY;
167 177
168 for (ix = fpad; ix > 0; ix--) 178static void
179free_padlist (pTHX_ AV *padlist)
180{
181 /* may be during global destruction */
182 if (SvREFCNT (padlist))
169 { 183 {
170 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; 184 I32 i = AvFILLp (padlist);
171 if (namesv && namesv != &PL_sv_undef) 185 while (i >= 0)
172 { 186 {
173 char *name = SvPVX (namesv); /* XXX */ 187 SV **svp = av_fetch (padlist, i--, FALSE);
174 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') 188 if (svp)
175 { /* lexical from outside? */
176 npad[ix] = SvREFCNT_inc (ppad[ix]);
177 } 189 {
178 else
179 { /* our own lexical */
180 SV *sv; 190 SV *sv;
181 if (*name == '&') 191 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
182 sv = SvREFCNT_inc (ppad[ix]); 192 SvREFCNT_dec (sv);
183 else if (*name == '@') 193
184 sv = (SV *) newAV (); 194 SvREFCNT_dec (*svp);
185 else if (*name == '%')
186 sv = (SV *) newHV ();
187 else
188 sv = NEWSV (0, 0);
189 if (!SvPADBUSY (sv))
190 SvPADMY_on (sv);
191 npad[ix] = sv;
192 } 195 }
193 } 196 }
194 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) 197
195 { 198 SvREFCNT_dec ((SV*)padlist);
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 } 199 }
200}
205 201
206#if 0 /* return -ENOTUNDERSTOOD */ 202static int
207 /* Now that vars are all in place, clone nested closures. */ 203coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
204{
205 AV *padlist;
206 AV *av = (AV *)mg->mg_obj;
208 207
209 for (ix = fpad; ix > 0; ix--) { 208 /* casting is fun. */
210 SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; 209 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
211 if (namesv 210 free_padlist (aTHX_ padlist);
212 && namesv != &PL_sv_undef 211
213 && !(SvFLAGS(namesv) & SVf_FAKE) 212 SvREFCNT_dec (av);
214 && *SvPVX(namesv) == '&' 213
215 && CvCLONE(ppad[ix])) 214 return 0;
216 { 215}
217 CV *kid = cv_clone((CV*)ppad[ix]); 216
218 SvREFCNT_dec(ppad[ix]); 217#define PERL_MAGIC_coro PERL_MAGIC_ext
219 CvCLONE_on(kid); 218
220 SvPADMY_on(kid); 219static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221 npad[ix] = (SV*)kid; 220
222 } 221/* the next two functions merely cache the padlists */
222static void
223get_padlist (pTHX_ CV *cv)
224{
225 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
226
227 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
228 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj);
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
238 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
239#endif
240 }
241}
242
243static void
244put_padlist (pTHX_ CV *cv)
245{
246 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
247
248 if (!mg)
249 {
250 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
251 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
252 mg->mg_virtual = &vtbl_coro;
253 mg->mg_obj = (SV *)newAV ();
223 } 254 }
224#endif
225 255
226 return newpadlist;
227}
228
229#ifdef MAY_FLUSH
230STATIC void
231free_padlist (AV *padlist)
232{
233 /* may be during global destruction */
234 if (SvREFCNT(padlist))
235 {
236 I32 i = AvFILLp(padlist);
237 while (i >= 0)
238 {
239 SV **svp = av_fetch(padlist, i--, FALSE);
240 SV *sv = svp ? *svp : Nullsv;
241 if (sv)
242 SvREFCNT_dec(sv);
243 }
244
245 SvREFCNT_dec((SV*)padlist);
246 }
247}
248#endif
249
250/* the next two functions merely cache the padlists */
251STATIC void
252get_padlist (CV *cv)
253{
254 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0);
255
256 if (he && AvFILLp ((AV *)*he) >= 0)
257 CvPADLIST (cv) = (AV *)av_pop ((AV *)*he);
258 else
259 CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
260}
261
262STATIC void
263put_padlist (CV *cv)
264{
265 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1);
266
267 if (SvTYPE (*he) != SVt_PVAV)
268 {
269 SvREFCNT_dec (*he);
270 *he = (SV *)newAV ();
271 }
272
273 av_push ((AV *)*he, (SV *)CvPADLIST (cv)); 256 av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv));
274} 257}
275
276#ifdef MAY_FLUSH
277STATIC void
278flush_padlist_cache ()
279{
280 HV *hv = padlist_cache;
281 padlist_cache = newHV ();
282
283 if (hv_iterinit (hv))
284 {
285 HE *he;
286 AV *padlist;
287
288 while (!!(he = hv_iternext (hv)))
289 {
290 AV *av = (AV *)HeVAL(he);
291
292 /* casting is fun. */
293 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
294 free_padlist (padlist);
295 }
296 }
297
298 SvREFCNT_dec (hv);
299}
300#endif
301 258
302#define SB do { 259#define SB do {
303#define SE } while (0) 260#define SE } while (0)
304 261
305#define LOAD(state) load_state(aTHX_ (state)); 262#define LOAD(state) load_state(aTHX_ (state));
306#define SAVE(state,flags) save_state(aTHX_ (state),(flags)); 263#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
307 264
308#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE 265#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
309 266
310static void 267static void
311load_state(pTHX_ Coro__State c) 268load_state(pTHX_ Coro__State c)
312{ 269{
313 PL_dowarn = c->dowarn; 270 PL_dowarn = c->dowarn;
… …
318 PL_mainstack = c->mainstack; 275 PL_mainstack = c->mainstack;
319 PL_stack_sp = c->stack_sp; 276 PL_stack_sp = c->stack_sp;
320 PL_op = c->op; 277 PL_op = c->op;
321 PL_curpad = c->curpad; 278 PL_curpad = c->curpad;
322 PL_comppad = c->comppad; 279 PL_comppad = c->comppad;
280 PL_compcv = c->compcv;
323 PL_stack_base = c->stack_base; 281 PL_stack_base = c->stack_base;
324 PL_stack_max = c->stack_max; 282 PL_stack_max = c->stack_max;
325 PL_tmps_stack = c->tmps_stack; 283 PL_tmps_stack = c->tmps_stack;
326 PL_tmps_floor = c->tmps_floor; 284 PL_tmps_floor = c->tmps_floor;
327 PL_tmps_ix = c->tmps_ix; 285 PL_tmps_ix = c->tmps_ix;
… …
333 PL_scopestack_ix = c->scopestack_ix; 291 PL_scopestack_ix = c->scopestack_ix;
334 PL_scopestack_max = c->scopestack_max; 292 PL_scopestack_max = c->scopestack_max;
335 PL_savestack = c->savestack; 293 PL_savestack = c->savestack;
336 PL_savestack_ix = c->savestack_ix; 294 PL_savestack_ix = c->savestack_ix;
337 PL_savestack_max = c->savestack_max; 295 PL_savestack_max = c->savestack_max;
296#if PERL_VERSION < 9
338 PL_retstack = c->retstack; 297 PL_retstack = c->retstack;
339 PL_retstack_ix = c->retstack_ix; 298 PL_retstack_ix = c->retstack_ix;
340 PL_retstack_max = c->retstack_max; 299 PL_retstack_max = c->retstack_max;
300#endif
301 PL_curpm = c->curpm;
341 PL_curcop = c->curcop; 302 PL_curcop = c->curcop;
342 PL_top_env = c->top_env; 303 PL_top_env = c->top_env;
343 304
344 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 305 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
345 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 306 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
… …
354 { 315 {
355 AV *padlist = (AV *)POPs; 316 AV *padlist = (AV *)POPs;
356 317
357 if (padlist) 318 if (padlist)
358 { 319 {
359 put_padlist (cv); /* mark this padlist as available */ 320 put_padlist (aTHX_ cv); /* mark this padlist as available */
360 CvPADLIST(cv) = padlist; 321 CvPADLIST(cv) = padlist;
361#ifdef USE_THREADS
362 /*CvOWNER(cv) = (struct perl_thread *)POPs;*/
363#endif
364 } 322 }
365 323
366 ++CvDEPTH(cv); 324 ++CvDEPTH(cv);
367 } 325 }
368 326
… …
395 if (CxTYPE(cx) == CXt_SUB) 353 if (CxTYPE(cx) == CXt_SUB)
396 { 354 {
397 CV *cv = cx->blk_sub.cv; 355 CV *cv = cx->blk_sub.cv;
398 if (CvDEPTH(cv)) 356 if (CvDEPTH(cv))
399 { 357 {
400#ifdef USE_THREADS
401 /*XPUSHs ((SV *)CvOWNER(cv));*/
402 /*CvOWNER(cv) = 0;*/
403 /*error must unlock this cv etc.. etc...*/
404#endif
405 EXTEND (SP, CvDEPTH(cv)*2); 358 EXTEND (SP, CvDEPTH(cv)*2);
406 359
407 while (--CvDEPTH(cv)) 360 while (--CvDEPTH(cv))
408 { 361 {
409 /* this tells the restore code to increment CvDEPTH */ 362 /* this tells the restore code to increment CvDEPTH */
… …
412 } 365 }
413 366
414 PUSHs ((SV *)CvPADLIST(cv)); 367 PUSHs ((SV *)CvPADLIST(cv));
415 PUSHs ((SV *)cv); 368 PUSHs ((SV *)cv);
416 369
417 get_padlist (cv); /* this is a monster */ 370 get_padlist (aTHX_ cv);
418 } 371 }
419 } 372 }
420#ifdef CXt_FORMAT 373#ifdef CXt_FORMAT
421 else if (CxTYPE(cx) == CXt_FORMAT) 374 else if (CxTYPE(cx) == CXt_FORMAT)
422 { 375 {
… …
450 c->mainstack = PL_mainstack; 403 c->mainstack = PL_mainstack;
451 c->stack_sp = PL_stack_sp; 404 c->stack_sp = PL_stack_sp;
452 c->op = PL_op; 405 c->op = PL_op;
453 c->curpad = PL_curpad; 406 c->curpad = PL_curpad;
454 c->comppad = PL_comppad; 407 c->comppad = PL_comppad;
408 c->compcv = PL_compcv;
455 c->stack_base = PL_stack_base; 409 c->stack_base = PL_stack_base;
456 c->stack_max = PL_stack_max; 410 c->stack_max = PL_stack_max;
457 c->tmps_stack = PL_tmps_stack; 411 c->tmps_stack = PL_tmps_stack;
458 c->tmps_floor = PL_tmps_floor; 412 c->tmps_floor = PL_tmps_floor;
459 c->tmps_ix = PL_tmps_ix; 413 c->tmps_ix = PL_tmps_ix;
… …
465 c->scopestack_ix = PL_scopestack_ix; 419 c->scopestack_ix = PL_scopestack_ix;
466 c->scopestack_max = PL_scopestack_max; 420 c->scopestack_max = PL_scopestack_max;
467 c->savestack = PL_savestack; 421 c->savestack = PL_savestack;
468 c->savestack_ix = PL_savestack_ix; 422 c->savestack_ix = PL_savestack_ix;
469 c->savestack_max = PL_savestack_max; 423 c->savestack_max = PL_savestack_max;
424#if PERL_VERSION < 9
470 c->retstack = PL_retstack; 425 c->retstack = PL_retstack;
471 c->retstack_ix = PL_retstack_ix; 426 c->retstack_ix = PL_retstack_ix;
472 c->retstack_max = PL_retstack_max; 427 c->retstack_max = PL_retstack_max;
428#endif
429 c->curpm = PL_curpm;
473 c->curcop = PL_curcop; 430 c->curcop = PL_curcop;
474 c->top_env = PL_top_env; 431 c->top_env = PL_top_env;
475} 432}
476 433
477/* 434/*
478 * allocate various perl stacks. This is an exact copy 435 * allocate various perl stacks. This is an exact copy
479 * of perl.c:init_stacks, except that it uses less memory 436 * of perl.c:init_stacks, except that it uses less memory
480 * on the assumption that coroutines do not usually need 437 * on the (sometimes correct) assumption that coroutines do
481 * a lot of stackspace. 438 * not usually need a lot of stackspace.
482 */ 439 */
483STATIC void 440static void
484coro_init_stacks (pTHX) 441coro_init_stacks (pTHX)
485{ 442{
443 LOCK;
444
486 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 445 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
487 PL_curstackinfo->si_type = PERLSI_MAIN; 446 PL_curstackinfo->si_type = PERLSI_MAIN;
488 PL_curstack = PL_curstackinfo->si_stack; 447 PL_curstack = PL_curstackinfo->si_stack;
489 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 448 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
490 449
… …
511 470
512 New(54,PL_savestack,96,ANY); 471 New(54,PL_savestack,96,ANY);
513 PL_savestack_ix = 0; 472 PL_savestack_ix = 0;
514 PL_savestack_max = 96; 473 PL_savestack_max = 96;
515 474
475#if PERL_VERSION < 9
516 New(54,PL_retstack,8,OP*); 476 New(54,PL_retstack,8,OP*);
517 PL_retstack_ix = 0; 477 PL_retstack_ix = 0;
518 PL_retstack_max = 8; 478 PL_retstack_max = 8;
479#endif
480
481 UNLOCK;
519} 482}
520 483
521/* 484/*
522 * destroy the stacks, the callchain etc... 485 * destroy the stacks, the callchain etc...
523 * still there is a memleak of 128 bytes...
524 */ 486 */
525STATIC void 487static void
526destroy_stacks(pTHX) 488destroy_stacks(pTHX)
527{ 489{
528 if (!IN_DESTRUCT) 490 if (!IN_DESTRUCT)
529 { 491 {
530 /* is this ugly, I ask? */ 492 /* is this ugly, I ask? */
531 while (PL_scopestack_ix) 493 LEAVE_SCOPE (0);
532 LEAVE;
533 494
534 /* sure it is, but more important: is it correct?? :/ */ 495 /* sure it is, but more important: is it correct?? :/ */
535 while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
536 FREETMPS; 496 FREETMPS;
497
498 /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/
537 } 499 }
538 500
539 while (PL_curstackinfo->si_next) 501 while (PL_curstackinfo->si_next)
540 PL_curstackinfo = PL_curstackinfo->si_next; 502 PL_curstackinfo = PL_curstackinfo->si_next;
541 503
542 while (PL_curstackinfo) 504 while (PL_curstackinfo)
543 { 505 {
544 PERL_SI *p = PL_curstackinfo->si_prev; 506 PERL_SI *p = PL_curstackinfo->si_prev;
545 507
546 { 508 { /*D*//*remove*/
547 dSP; 509 dSP;
548 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); 510 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
549 PUTBACK; /* possibly superfluous */ 511 PUTBACK; /* possibly superfluous */
550 } 512 }
551 513
552 if (!IN_DESTRUCT) 514 if (!IN_DESTRUCT)
553 { 515 {
554 dounwind(-1); 516 dounwind (-1);/*D*//*remove*/
555 SvREFCNT_dec(PL_curstackinfo->si_stack); 517 SvREFCNT_dec (PL_curstackinfo->si_stack);
556 } 518 }
557 519
558 Safefree(PL_curstackinfo->si_cxstack); 520 Safefree (PL_curstackinfo->si_cxstack);
559 Safefree(PL_curstackinfo); 521 Safefree (PL_curstackinfo);
560 PL_curstackinfo = p; 522 PL_curstackinfo = p;
561 } 523 }
562 524
563 Safefree(PL_tmps_stack); 525 Safefree (PL_tmps_stack);
564 Safefree(PL_markstack); 526 Safefree (PL_markstack);
565 Safefree(PL_scopestack); 527 Safefree (PL_scopestack);
566 Safefree(PL_savestack); 528 Safefree (PL_savestack);
529#if PERL_VERSION < 9
567 Safefree(PL_retstack); 530 Safefree (PL_retstack);
531#endif
568} 532}
569 533
570static void 534static void
571allocate_stack (Coro__State ctx, int alloc) 535allocate_stack (Coro__State ctx, int alloc)
572{ 536{
… …
575 New (0, stack, 1, coro_stack); 539 New (0, stack, 1, coro_stack);
576 540
577 stack->refcnt = 1; 541 stack->refcnt = 1;
578 stack->usecnt = 1; 542 stack->usecnt = 1;
579 stack->gencnt = ctx->gencnt = 0; 543 stack->gencnt = ctx->gencnt = 0;
544
580 if (alloc) 545 if (alloc)
581 { 546 {
582#if HAVE_MMAP 547#if HAVE_MMAP
583 stack->ssize = 128 * 1024 * 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 */
584 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);
585 if (stack->sptr == (void *)-1) 550 if (stack->sptr != (void *)-1)
586#endif
587 { 551 {
588 /*FIXME*//*D*//* reasonable stack size! */ 552# if STACKGUARD
553 mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
554# endif
555 }
556 else
557#endif
558 {
589 stack->ssize = -4096 * sizeof (long); 559 stack->ssize = - (STACKSIZE * (long)sizeof (long));
590 New (0, stack->sptr, 4096, long); 560 New (0, stack->sptr, STACKSIZE, long);
591 } 561 }
592 } 562 }
593 else 563 else
594 stack->sptr = 0; 564 stack->sptr = 0;
595 565
… …
609 { 579 {
610#ifdef HAVE_MMAP 580#ifdef HAVE_MMAP
611 if (stack->ssize > 0 && stack->sptr) 581 if (stack->ssize > 0 && stack->sptr)
612 munmap (stack->sptr, stack->ssize); 582 munmap (stack->sptr, stack->ssize);
613 else 583 else
614#else 584#endif
615 Safefree (stack->sptr); 585 Safefree (stack->sptr);
616#endif 586
617 Safefree (stack); 587 Safefree (stack);
618 } 588 }
619 else if (ctx->gencnt == stack->gencnt) 589 else if (ctx->gencnt == stack->gencnt)
620 --stack->usecnt; 590 --stack->usecnt;
621 } 591 }
… …
625setup_coro (void *arg) 595setup_coro (void *arg)
626{ 596{
627 /* 597 /*
628 * emulate part of the perl startup here. 598 * emulate part of the perl startup here.
629 */ 599 */
600 dTHX;
630 dSP; 601 dSP;
631 Coro__State ctx = (Coro__State)arg; 602 Coro__State ctx = (Coro__State)arg;
632 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); 603 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE);
633 604
634 coro_init_stacks (aTHX); 605 coro_init_stacks (aTHX);
635 /*PL_curcop = 0;*/ 606 /*PL_curcop = 0;*/
636 /*PL_in_eval = PL_in_eval;*/ /* inherit */ 607 /*PL_in_eval = PL_in_eval;*/ /* inherit */
637 SvREFCNT_dec (GvAV (PL_defgv)); 608 SvREFCNT_dec (GvAV (PL_defgv));
638 GvAV (PL_defgv) = ctx->args; 609 GvAV (PL_defgv) = ctx->args; ctx->args = 0;
639 610
640 SPAGAIN; 611 SPAGAIN;
641 612
642 if (ctx->stack) 613 if (ctx->stack)
643 { 614 {
… …
683continue_coro (void *arg) 654continue_coro (void *arg)
684{ 655{
685 /* 656 /*
686 * this is a _very_ stripped down perl interpreter ;) 657 * this is a _very_ stripped down perl interpreter ;)
687 */ 658 */
659 dTHX;
688 Coro__State ctx = (Coro__State)arg; 660 Coro__State ctx = (Coro__State)arg;
689 JMPENV coro_start_env;
690 661
691 PL_top_env = &ctx->start_env; 662 PL_top_env = &ctx->start_env;
692 663
693 ctx->cursp = 0; 664 ctx->cursp = 0;
694 PL_op = PL_op->op_next; 665 PL_op = PL_op->op_next;
695 CALLRUNOPS(aTHX); 666 CALLRUNOPS(aTHX);
696 667
697 abort (); 668 abort ();
698} 669}
699 670
700STATIC void 671static void
701transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 672transfer (pTHX_ struct coro *prev, struct coro *next, int flags)
702{ 673{
703 dSTACKLEVEL; 674 dSTACKLEVEL;
704 static struct coro *xnext;
705 675
706 if (prev != next) 676 if (prev != next)
707 { 677 {
708 xnext = next;
709
710 if (next->mainstack) 678 if (next->mainstack)
711 { 679 {
680 LOCK;
712 SAVE (prev, flags); 681 SAVE (prev, flags);
713 LOAD (next); 682 LOAD (next);
683 UNLOCK;
714 684
715 /* mark this state as in-use */ 685 /* mark this state as in-use */
716 next->mainstack = 0; 686 next->mainstack = 0;
717 next->tmps_ix = -2; 687 next->tmps_ix = -2;
718 688
… …
737 continue_coro, (void *)next, 707 continue_coro, (void *)next,
738 next->stack->sptr, labs (next->stack->ssize)); 708 next->stack->sptr, labs (next->stack->ssize));
739 } 709 }
740 710
741 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 711 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
712 prev->cursp = stacklevel;
742 /* don't add any code here */ 713 /* don't add any code here */
743 } 714 }
744 715 else
716 next->cursp = stacklevel;
745 } 717 }
746 else if (next->tmps_ix == -2) 718 else if (next->tmps_ix == -2)
747 croak ("tried to transfer to running coroutine"); 719 croak ("tried to transfer to running coroutine");
748 else 720 else
749 { 721 {
722 LOCK;
750 SAVE (prev, -1); /* first get rid of the old state */ 723 SAVE (prev, -1); /* first get rid of the old state */
724 UNLOCK;
751 725
752 if (flags & TRANSFER_SAVE_CCTXT) 726 if (flags & TRANSFER_SAVE_CCTXT)
753 { 727 {
754 if (!prev->stack) 728 if (!prev->stack)
755 allocate_stack (prev, 0); 729 allocate_stack (prev, 0);
… …
757 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) 731 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
758 { 732 {
759 PL_top_env = &next->start_env; 733 PL_top_env = &next->start_env;
760 734
761 setup_coro (next); 735 setup_coro (next);
736 next->cursp = stacklevel;
762 737
763 prev->stack->refcnt++; 738 prev->stack->refcnt++;
764 prev->stack->usecnt++; 739 prev->stack->usecnt++;
765 next->stack = prev->stack; 740 next->stack = prev->stack;
766 next->gencnt = prev->gencnt; 741 next->gencnt = prev->gencnt;
767 } 742 }
768 else 743 else
769 { 744 {
745 assert (!next->stack);
770 allocate_stack (next, 1); 746 allocate_stack (next, 1);
771 coro_create (&(next->stack->cctx), 747 coro_create (&(next->stack->cctx),
772 setup_coro, (void *)next, 748 setup_coro, (void *)next,
773 next->stack->sptr, labs (next->stack->ssize)); 749 next->stack->sptr, labs (next->stack->ssize));
774 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 750 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
751 prev->cursp = stacklevel;
775 /* don't add any code here */ 752 /* don't add any code here */
776 } 753 }
777 } 754 }
778 else 755 else
756 {
779 setup_coro (next); 757 setup_coro (next);
758 next->cursp = stacklevel;
759 }
780 } 760 }
781
782 /*
783 * xnext is now either prev or next, depending on wether
784 * we switched the c stack or not. that's why I use a global
785 * variable, that should become thread-specific at one point.
786 */
787 xnext->cursp = stacklevel;
788 } 761 }
789 762
763 LOCK;
790 if (coro_mortal) 764 if (coro_mortal)
791 { 765 {
792 SvREFCNT_dec (coro_mortal); 766 SvREFCNT_dec (coro_mortal);
793 coro_mortal = 0; 767 coro_mortal = 0;
794 } 768 }
769 UNLOCK;
795} 770}
796 771
797#define SV_CORO(sv,func) \ 772#define SV_CORO(sv,func) \
798 do { \ 773 do { \
799 if (SvROK (sv)) \ 774 if (SvROK (sv)) \
800 sv = SvRV (sv); \ 775 sv = SvRV (sv); \
801 \ 776 \
802 if (SvTYPE(sv) == SVt_PVHV) \ 777 if (SvTYPE (sv) == SVt_PVHV) \
803 { \ 778 { \
804 HE *he = hv_fetch_ent((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ 779 HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \
805 \ 780 \
806 if (!he) \ 781 if (!he) \
807 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ 782 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
808 \ 783 \
809 (sv) = SvRV (HeVAL(he)); \ 784 (sv) = SvRV (HeVAL(he)); \
810 } \ 785 } \
811 \ 786 \
812 /* must also be changed inside Coro::Cont::yield */ \ 787 /* must also be changed inside Coro::Cont::yield */ \
813 if (!SvOBJECT(sv) || SvSTASH(sv) != coro_state_stash) \ 788 if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \
814 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); \
815 \ 790 \
816 } while(0) 791 } while(0)
817 792
818#define SvSTATE(sv) (struct coro *)SvIV (sv) 793#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
819 794
820static void 795static void
821api_transfer(pTHX_ SV *prev, SV *next, int flags) 796api_transfer(pTHX_ SV *prev, SV *next, int flags)
822{ 797{
823 SV_CORO (prev, "Coro::transfer"); 798 SV_CORO (prev, "Coro::transfer");
824 SV_CORO (next, "Coro::transfer"); 799 SV_CORO (next, "Coro::transfer");
825 800
826 transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags); 801 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
827} 802}
828 803
829/** Coro ********************************************************************/ 804/** Coro ********************************************************************/
830 805
831#define PRIO_MAX 3 806#define PRIO_MAX 3
… …
839static GV *coro_current, *coro_idle; 814static GV *coro_current, *coro_idle;
840static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; 815static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
841static int coro_nready; 816static int coro_nready;
842 817
843static void 818static void
844coro_enq (SV *sv) 819coro_enq (pTHX_ SV *sv)
845{ 820{
821 SV **xprio;
822 int prio;
823
846 if (SvTYPE (sv) == SVt_PVHV) 824 if (SvTYPE (sv) != SVt_PVHV)
847 {
848 SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
849 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
850
851 prio = prio > PRIO_MAX ? PRIO_MAX
852 : prio < PRIO_MIN ? PRIO_MIN
853 : prio;
854
855 av_push (coro_ready [prio - PRIO_MIN], sv);
856 coro_nready++;
857
858 return;
859 }
860
861 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++;
862} 836}
863 837
864static SV * 838static SV *
865coro_deq (int min_prio) 839coro_deq (pTHX_ int min_prio)
866{ 840{
867 int prio = PRIO_MAX - PRIO_MIN; 841 int prio = PRIO_MAX - PRIO_MIN;
868 842
869 min_prio -= PRIO_MIN; 843 min_prio -= PRIO_MIN;
870 if (min_prio < 0) 844 if (min_prio < 0)
… …
881} 855}
882 856
883static void 857static void
884api_ready (SV *coro) 858api_ready (SV *coro)
885{ 859{
860 dTHX;
861
886 if (SvROK (coro)) 862 if (SvROK (coro))
887 coro = SvRV (coro); 863 coro = SvRV (coro);
888 864
865 LOCK;
889 coro_enq (SvREFCNT_inc (coro)); 866 coro_enq (aTHX_ SvREFCNT_inc (coro));
867 UNLOCK;
890} 868}
891 869
892static void 870static void
893api_schedule (void) 871api_schedule (void)
894{ 872{
873 dTHX;
874
895 SV *prev, *next; 875 SV *prev, *next;
896 876
877 LOCK;
878
897 prev = SvRV (GvSV (coro_current)); 879 prev = SvRV (GvSV (coro_current));
898 next = coro_deq (PRIO_MIN); 880 next = coro_deq (aTHX_ PRIO_MIN);
899 881
900 if (!next) 882 if (!next)
901 next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); 883 next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
902 884
903 /* free this only after the transfer */ 885 /* free this only after the transfer */
… …
906 888
907 SvRV (GvSV (coro_current)) = next; 889 SvRV (GvSV (coro_current)) = next;
908 890
909 SV_CORO (next, "Coro::schedule"); 891 SV_CORO (next, "Coro::schedule");
910 892
893 UNLOCK;
894
911 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), 895 transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
912 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); 896 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK);
913} 897}
914 898
915static void 899static void
916api_cede (void) 900api_cede (void)
917{ 901{
902 dTHX;
903
904 LOCK;
918 coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); 905 coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
906 UNLOCK;
919 907
920 api_schedule (); 908 api_schedule ();
921} 909}
922 910
923MODULE = Coro::State PACKAGE = Coro::State 911MODULE = Coro::State PACKAGE = Coro::State
924 912
925PROTOTYPES: ENABLE 913PROTOTYPES: ENABLE
926 914
927BOOT: 915BOOT:
928{ /* {} necessary for stoopid perl-5.6.x */ 916{ /* {} necessary for stoopid perl-5.6.x */
917#ifdef USE_ITHREADS
918 MUTEX_INIT (&coro_mutex);
919#endif
920 BOOT_PAGESIZE;
921
929 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); 922 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
930 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); 923 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
931 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 924 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
932 925
933 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); 926 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
934 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); 927 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
935 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); 928 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
936 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); 929 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
937
938 if (!padlist_cache)
939 padlist_cache = newHV ();
940 930
941 main_mainstack = PL_mainstack; 931 main_mainstack = PL_mainstack;
942 932
943 coroapi.ver = CORO_API_VERSION; 933 coroapi.ver = CORO_API_VERSION;
944 coroapi.transfer = api_transfer; 934 coroapi.transfer = api_transfer;
… …
952 Coro__State coro; 942 Coro__State coro;
953 943
954 if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) 944 if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV)
955 croak ("Coro::State::_newprocess expects an arrayref"); 945 croak ("Coro::State::_newprocess expects an arrayref");
956 946
957 New (0, coro, 1, struct coro); 947 Newz (0, coro, 1, struct coro);
958 948
959 coro->args = (AV *)SvREFCNT_inc (SvRV (args)); 949 coro->args = (AV *)SvREFCNT_inc (SvRV (args));
960 coro->mainstack = 0; /* actual work is done inside transfer */ 950 /*coro->mainstack = 0; *//*actual work is done inside transfer */
961 coro->stack = 0; 951 /*coro->stack = 0;*/
962 952
963 /* same as JMPENV_BOOTSTRAP */ 953 /* same as JMPENV_BOOTSTRAP */
964 /* we might be able to recycle start_env, but safe is safe */ 954 /* we might be able to recycle start_env, but safe is safe */
965 Zero(&coro->start_env, 1, JMPENV); 955 /*Zero(&coro->start_env, 1, JMPENV);*/
966 coro->start_env.je_ret = -1; 956 coro->start_env.je_ret = -1;
967 coro->start_env.je_mustcatch = TRUE; 957 coro->start_env.je_mustcatch = TRUE;
968 958
969 RETVAL = coro; 959 RETVAL = coro;
970 OUTPUT: 960 OUTPUT:
… …
991 if (coro->mainstack && coro->mainstack != main_mainstack) 981 if (coro->mainstack && coro->mainstack != main_mainstack)
992 { 982 {
993 struct coro temp; 983 struct coro temp;
994 984
995 PUTBACK; 985 PUTBACK;
996 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 986 SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
997 LOAD(aTHX_ coro); 987 LOAD (aTHX_ coro);
998 SPAGAIN; 988 SPAGAIN;
999 989
1000 destroy_stacks (aTHX); 990 destroy_stacks (aTHX);
1001 991
1002 LOAD((&temp)); /* this will get rid of defsv etc.. */ 992 LOAD ((&temp)); /* this will get rid of defsv etc.. */
1003 SPAGAIN; 993 SPAGAIN;
1004 994
1005 coro->mainstack = 0; 995 coro->mainstack = 0;
1006 } 996 }
1007 997
1008 deallocate_stack (coro); 998 deallocate_stack (coro);
1009 999 SvREFCNT_dec (coro->args);
1010 Safefree (coro); 1000 Safefree (coro);
1011
1012void
1013flush()
1014 CODE:
1015#ifdef MAY_FLUSH
1016 flush_padlist_cache ();
1017#endif
1018 1001
1019void 1002void
1020_exit(code) 1003_exit(code)
1021 int code 1004 int code
1022 PROTOTYPE: $ 1005 PROTOTYPE: $
1023 CODE: 1006 CODE:
1024#if defined(__GLIBC__) || _POSIX_C_SOURCE
1025 _exit (code); 1007 _exit (code);
1026#else
1027 signal (SIGTERM, SIG_DFL);
1028 raise (SIGTERM);
1029 exit (code);
1030#endif
1031 1008
1032MODULE = Coro::State PACKAGE = Coro::Cont 1009MODULE = Coro::State PACKAGE = Coro::Cont
1033 1010
1034# this is slightly dirty (should expose a c-level api) 1011# this is slightly dirty (should expose a c-level api)
1035 1012
1036void 1013void
1037yield(...) 1014yield(...)
1038 PROTOTYPE: @ 1015 PROTOTYPE: @
1039 CODE: 1016 CODE:
1040 static SV *returnstk; 1017 SV *yieldstack;
1041 SV *sv; 1018 SV *sv;
1042 AV *defav = GvAV (PL_defgv); 1019 AV *defav = GvAV (PL_defgv);
1043 struct coro *prev, *next; 1020 struct coro *prev, *next;
1044 1021
1045 if (!returnstk) 1022 yieldstack = *hv_fetch (
1046 returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE)); 1023 (HV *)SvRV (GvSV (coro_current)),
1024 "yieldstack", sizeof ("yieldstack") - 1,
1025 0
1026 );
1047 1027
1048 /* set up @_ -- ugly */ 1028 /* set up @_ -- ugly */
1049 av_clear (defav); 1029 av_clear (defav);
1050 av_fill (defav, items - 1); 1030 av_fill (defav, items - 1);
1051 while (items--) 1031 while (items--)
1052 av_store (defav, items, SvREFCNT_inc (ST(items))); 1032 av_store (defav, items, SvREFCNT_inc (ST(items)));
1053 1033
1054 mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1055 sv = av_pop ((AV *)SvRV (returnstk)); 1034 sv = av_pop ((AV *)SvRV (yieldstack));
1056 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))));
1057 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))));
1058 SvREFCNT_dec (sv); 1037 SvREFCNT_dec (sv);
1059 1038
1060 transfer(aTHX_ prev, next, 0); 1039 transfer (aTHX_ prev, next, 0);
1061 1040
1062MODULE = Coro::State PACKAGE = Coro 1041MODULE = Coro::State PACKAGE = Coro
1063 1042
1064# this is slightly dirty (should expose a c-level api) 1043# this is slightly dirty (should expose a c-level api)
1065 1044
… …
1094 sv_setiv(sv, (IV)&coroapi); 1073 sv_setiv(sv, (IV)&coroapi);
1095 SvREADONLY_on(sv); 1074 SvREADONLY_on(sv);
1096 } 1075 }
1097} 1076}
1098 1077
1078#if !PERL_MICRO
1079
1099void 1080void
1100ready(self) 1081ready(self)
1101 SV * self 1082 SV * self
1102 PROTOTYPE: $ 1083 PROTOTYPE: $
1103 CODE: 1084 CODE:
1104 api_ready (self); 1085 api_ready (self);
1086
1087#endif
1105 1088
1106int 1089int
1107nready(...) 1090nready(...)
1108 PROTOTYPE: 1091 PROTOTYPE:
1109 CODE: 1092 CODE:
… …
1121cede(...) 1104cede(...)
1122 PROTOTYPE: 1105 PROTOTYPE:
1123 CODE: 1106 CODE:
1124 api_cede (); 1107 api_cede ();
1125 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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