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Comparing Coro/Coro/State.xs (file contents):
Revision 1.90 by root, Sat Nov 25 00:56:35 2006 UTC vs.
Revision 1.108 by root, Mon Nov 27 18:15:47 2006 UTC

1#define PERL_NO_GET_CONTEXT
2
3#include "libcoro/coro.c" 1#include "libcoro/coro.c"
4 2
5#include "EXTERN.h" 3#include "EXTERN.h"
6#include "perl.h" 4#include "perl.h"
7#include "XSUB.h" 5#include "XSUB.h"
8 6
9#include "patchlevel.h" 7#include "patchlevel.h"
10 8
11#if PERL_VERSION < 6 9#if USE_VALGRIND
10# include <valgrind/valgrind.h>
11#endif
12
13#define PERL_VERSION_ATLEAST(a,b,c) \
14 (PERL_REVISION > (a) \
15 || (PERL_REVISION == (a) \
16 && (PERL_VERSION > (b) \
17 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
18
19#if !PERL_VERSION_ATLEAST (5,6,0)
12# ifndef PL_ppaddr 20# ifndef PL_ppaddr
13# define PL_ppaddr ppaddr 21# define PL_ppaddr ppaddr
14# endif 22# endif
15# ifndef call_sv 23# ifndef call_sv
16# define call_sv perl_call_sv 24# define call_sv perl_call_sv
… …
27# ifndef IS_PADCONST 35# ifndef IS_PADCONST
28# define IS_PADCONST(v) 0 36# define IS_PADCONST(v) 0
29# endif 37# endif
30#endif 38#endif
31 39
40#include <stdio.h>
32#include <errno.h> 41#include <errno.h>
33 42
34#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 43#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35# undef STACKGUARD 44# undef STACKGUARD
36#endif 45#endif
… …
53# ifndef PAGESIZE 62# ifndef PAGESIZE
54# define PAGESIZE pagesize 63# define PAGESIZE pagesize
55# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) 64# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
56static long pagesize; 65static long pagesize;
57# else 66# else
58# define BOOT_PAGESIZE 67# define BOOT_PAGESIZE (void)0
59# endif 68# endif
69#else
70# define PAGESIZE 0
71# define BOOT_PAGESIZE (void)0
60#endif 72#endif
61
62#define SUB_INIT "Coro::State::initialize"
63 73
64/* The next macro should declare a variable stacklevel that contains and approximation 74/* The next macro should declare a variable stacklevel that contains and approximation
65 * to the current C stack pointer. Its property is that it changes with each call 75 * to the current C stack pointer. Its property is that it changes with each call
66 * and should be unique. */ 76 * and should be unique. */
77#define dSTACKLEVEL int stacklevel
67#define dSTACKLEVEL void *stacklevel = &stacklevel 78#define STACKLEVEL ((void *)&stacklevel)
68 79
69#define IN_DESTRUCT (PL_main_cv == Nullcv) 80#define IN_DESTRUCT (PL_main_cv == Nullcv)
70 81
71#define labs(l) ((l) >= 0 ? (l) : -(l)) 82#if __GNUC__ >= 3
83# define attribute(x) __attribute__(x)
84#else
85# define attribute(x)
86#endif
87
88#define NOINLINE attribute ((noinline))
72 89
73#include "CoroAPI.h" 90#include "CoroAPI.h"
91
92#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
74 93
75#ifdef USE_ITHREADS 94#ifdef USE_ITHREADS
76static perl_mutex coro_mutex; 95static perl_mutex coro_mutex;
77# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 96# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
78# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) 97# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
… …
84static struct CoroAPI coroapi; 103static struct CoroAPI coroapi;
85static AV *main_mainstack; /* used to differentiate between $main and others */ 104static AV *main_mainstack; /* used to differentiate between $main and others */
86static HV *coro_state_stash, *coro_stash; 105static HV *coro_state_stash, *coro_stash;
87static SV *coro_mortal; /* will be freed after next transfer */ 106static SV *coro_mortal; /* will be freed after next transfer */
88 107
89/* this is actually not just the c stack but also c registers etc... */ 108static struct coro_cctx *cctx_first;
109static int cctx_count, cctx_idle;
110
111/* this is a structure representing a c-level coroutine */
90typedef struct coro_stack { 112typedef struct coro_cctx {
91 struct coro_stack *next; 113 struct coro_cctx *next;
92 114
93 void *idle_sp; 115 /* the stack */
94 void *sptr; 116 void *sptr;
95 long ssize; /* positive == mmap, otherwise malloc */ 117 long ssize; /* positive == mmap, otherwise malloc */
96 118
97 /* cpu state */ 119 /* cpu state */
120 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
121 JMPENV *top_env;
98 coro_context cctx; 122 coro_context cctx;
99} coro_stack;
100 123
101static coro_stack *main_stack; 124#if USE_VALGRIND
125 int valgrind_id;
126#endif
127} coro_cctx;
102 128
129/* this is a structure representing a perl-level coroutine */
103struct coro { 130struct coro {
131 /* the c coroutine allocated to this perl coroutine, if any */
132 coro_cctx *cctx;
133
134 /* data associated with this coroutine (initial args) */
135 AV *args;
136 int refcnt;
137
104 /* optionally saved, might be zero */ 138 /* optionally saved, might be zero */
105 AV *defav; 139 AV *defav;
106 SV *defsv; 140 SV *defsv;
107 SV *errsv; 141 SV *errsv;
108 142
109 /* saved global state not related to stacks */ 143#define VAR(name,type) type name;
110 U8 dowarn; 144# include "state.h"
111 I32 in_eval; 145#undef VAR
112
113 /* the c stack, if any */
114 coro_stack *stack;
115
116 /* the stacks and related info (callchain etc..) */
117 PERL_SI *curstackinfo;
118 AV *curstack;
119 AV *mainstack;
120 SV **stack_sp;
121 OP *op;
122 SV **curpad;
123 AV *comppad;
124 CV *compcv;
125 SV **stack_base;
126 SV **stack_max;
127 SV **tmps_stack;
128 I32 tmps_floor;
129 I32 tmps_ix;
130 I32 tmps_max;
131 I32 *markstack;
132 I32 *markstack_ptr;
133 I32 *markstack_max;
134 I32 *scopestack;
135 I32 scopestack_ix;
136 I32 scopestack_max;
137 ANY *savestack;
138 I32 savestack_ix;
139 I32 savestack_max;
140 OP **retstack;
141 I32 retstack_ix;
142 I32 retstack_max;
143 PMOP *curpm;
144 COP *curcop;
145 JMPENV *top_env;
146 146
147 /* coro process data */ 147 /* coro process data */
148 int prio; 148 int prio;
149
150 /* data associated with this coroutine (initial args) */
151 AV *args;
152 int refcnt;
153}; 149};
154 150
155typedef struct coro *Coro__State; 151typedef struct coro *Coro__State;
156typedef struct coro *Coro__State_or_hashref; 152typedef struct coro *Coro__State_or_hashref;
157 153
158static AV * 154static AV *
159coro_clone_padlist (pTHX_ CV *cv) 155coro_clone_padlist (CV *cv)
160{ 156{
161 AV *padlist = CvPADLIST (cv); 157 AV *padlist = CvPADLIST (cv);
162 AV *newpadlist, *newpad; 158 AV *newpadlist, *newpad;
163 159
164 newpadlist = newAV (); 160 newpadlist = newAV ();
165 AvREAL_off (newpadlist); 161 AvREAL_off (newpadlist);
166#if PERL_VERSION < 9 162#if PERL_VERSION_ATLEAST (5,9,0)
163 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
164#else
167 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 165 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
168#else
169 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
170#endif 166#endif
171 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 167 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
172 --AvFILLp (padlist); 168 --AvFILLp (padlist);
173 169
174 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); 170 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
… …
176 172
177 return newpadlist; 173 return newpadlist;
178} 174}
179 175
180static void 176static void
181free_padlist (pTHX_ AV *padlist) 177free_padlist (AV *padlist)
182{ 178{
183 /* may be during global destruction */ 179 /* may be during global destruction */
184 if (SvREFCNT (padlist)) 180 if (SvREFCNT (padlist))
185 { 181 {
186 I32 i = AvFILLp (padlist); 182 I32 i = AvFILLp (padlist);
… …
207 AV *padlist; 203 AV *padlist;
208 AV *av = (AV *)mg->mg_obj; 204 AV *av = (AV *)mg->mg_obj;
209 205
210 /* casting is fun. */ 206 /* casting is fun. */
211 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 207 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
212 free_padlist (aTHX_ padlist); 208 free_padlist (padlist);
213 209
214 SvREFCNT_dec (av); 210 SvREFCNT_dec (av);
215 211
216 return 0; 212 return 0;
217} 213}
… …
220 216
221static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; 217static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
222 218
223/* the next two functions merely cache the padlists */ 219/* the next two functions merely cache the padlists */
224static void 220static void
225get_padlist (pTHX_ CV *cv) 221get_padlist (CV *cv)
226{ 222{
227 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 223 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
228 224
229 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) 225 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); 226 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj);
231 else 227 else
232 { 228 {
233#if 0 229#if 0
234 /* this should work - but it doesn't :( */ 230 /* this is probably cleaner, but also slower? */
235 CV *cp = Perl_cv_clone (aTHX_ cv); 231 CV *cp = Perl_cv_clone (cv);
236 CvPADLIST (cv) = CvPADLIST (cp); 232 CvPADLIST (cv) = CvPADLIST (cp);
237 CvPADLIST (cp) = 0; 233 CvPADLIST (cp) = 0;
238 SvREFCNT_dec (cp); 234 SvREFCNT_dec (cp);
239#else 235#else
240 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 236 CvPADLIST (cv) = coro_clone_padlist (cv);
241#endif 237#endif
242 } 238 }
243} 239}
244 240
245static void 241static void
246put_padlist (pTHX_ CV *cv) 242put_padlist (CV *cv)
247{ 243{
248 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 244 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
249 245
250 if (!mg) 246 if (!mg)
251 { 247 {
… …
259} 255}
260 256
261#define SB do { 257#define SB do {
262#define SE } while (0) 258#define SE } while (0)
263 259
264#define LOAD(state) load_state(aTHX_ (state)); 260#define LOAD(state) load_state((state));
265#define SAVE(state,flags) save_state(aTHX_ (state),(flags)); 261#define SAVE(state,flags) save_state((state),(flags));
266 262
267#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE 263#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
268 264
269static void 265static void
270load_state(pTHX_ Coro__State c) 266load_state(Coro__State c)
271{ 267{
272 PL_dowarn = c->dowarn; 268#define VAR(name,type) PL_ ## name = c->name;
273 PL_in_eval = c->in_eval; 269# include "state.h"
274 270#undef VAR
275 PL_curstackinfo = c->curstackinfo;
276 PL_curstack = c->curstack;
277 PL_mainstack = c->mainstack;
278 PL_stack_sp = c->stack_sp;
279 PL_op = c->op;
280 PL_curpad = c->curpad;
281 PL_comppad = c->comppad;
282 PL_compcv = c->compcv;
283 PL_stack_base = c->stack_base;
284 PL_stack_max = c->stack_max;
285 PL_tmps_stack = c->tmps_stack;
286 PL_tmps_floor = c->tmps_floor;
287 PL_tmps_ix = c->tmps_ix;
288 PL_tmps_max = c->tmps_max;
289 PL_markstack = c->markstack;
290 PL_markstack_ptr = c->markstack_ptr;
291 PL_markstack_max = c->markstack_max;
292 PL_scopestack = c->scopestack;
293 PL_scopestack_ix = c->scopestack_ix;
294 PL_scopestack_max = c->scopestack_max;
295 PL_savestack = c->savestack;
296 PL_savestack_ix = c->savestack_ix;
297 PL_savestack_max = c->savestack_max;
298#if PERL_VERSION < 9
299 PL_retstack = c->retstack;
300 PL_retstack_ix = c->retstack_ix;
301 PL_retstack_max = c->retstack_max;
302#endif
303 PL_curpm = c->curpm;
304 PL_curcop = c->curcop;
305 PL_top_env = c->top_env;
306 271
307 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 272 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 273 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 274 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
310 275
… …
317 { 282 {
318 AV *padlist = (AV *)POPs; 283 AV *padlist = (AV *)POPs;
319 284
320 if (padlist) 285 if (padlist)
321 { 286 {
322 put_padlist (aTHX_ cv); /* mark this padlist as available */ 287 put_padlist (cv); /* mark this padlist as available */
323 CvPADLIST(cv) = padlist; 288 CvPADLIST(cv) = padlist;
324 } 289 }
325 290
326 ++CvDEPTH(cv); 291 ++CvDEPTH(cv);
327 } 292 }
… …
329 PUTBACK; 294 PUTBACK;
330 } 295 }
331} 296}
332 297
333static void 298static void
334save_state(pTHX_ Coro__State c, int flags) 299save_state(Coro__State c, int flags)
335{ 300{
336 { 301 {
337 dSP; 302 dSP;
338 I32 cxix = cxstack_ix; 303 I32 cxix = cxstack_ix;
339 PERL_CONTEXT *ccstk = cxstack; 304 PERL_CONTEXT *ccstk = cxstack;
… …
367 } 332 }
368 333
369 PUSHs ((SV *)CvPADLIST(cv)); 334 PUSHs ((SV *)CvPADLIST(cv));
370 PUSHs ((SV *)cv); 335 PUSHs ((SV *)cv);
371 336
372 get_padlist (aTHX_ cv); 337 get_padlist (cv);
373 } 338 }
374 } 339 }
375#ifdef CXt_FORMAT 340#ifdef CXt_FORMAT
376 else if (CxTYPE(cx) == CXt_FORMAT) 341 else if (CxTYPE(cx) == CXt_FORMAT)
377 { 342 {
… …
395 360
396 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 361 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
397 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 362 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
398 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 363 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
399 364
400 c->dowarn = PL_dowarn; 365#define VAR(name,type)c->name = PL_ ## name;
401 c->in_eval = PL_in_eval; 366# include "state.h"
402 367#undef VAR
403 c->curstackinfo = PL_curstackinfo;
404 c->curstack = PL_curstack;
405 c->mainstack = PL_mainstack;
406 c->stack_sp = PL_stack_sp;
407 c->op = PL_op;
408 c->curpad = PL_curpad;
409 c->comppad = PL_comppad;
410 c->compcv = PL_compcv;
411 c->stack_base = PL_stack_base;
412 c->stack_max = PL_stack_max;
413 c->tmps_stack = PL_tmps_stack;
414 c->tmps_floor = PL_tmps_floor;
415 c->tmps_ix = PL_tmps_ix;
416 c->tmps_max = PL_tmps_max;
417 c->markstack = PL_markstack;
418 c->markstack_ptr = PL_markstack_ptr;
419 c->markstack_max = PL_markstack_max;
420 c->scopestack = PL_scopestack;
421 c->scopestack_ix = PL_scopestack_ix;
422 c->scopestack_max = PL_scopestack_max;
423 c->savestack = PL_savestack;
424 c->savestack_ix = PL_savestack_ix;
425 c->savestack_max = PL_savestack_max;
426#if PERL_VERSION < 9
427 c->retstack = PL_retstack;
428 c->retstack_ix = PL_retstack_ix;
429 c->retstack_max = PL_retstack_max;
430#endif
431 c->curpm = PL_curpm;
432 c->curcop = PL_curcop;
433 c->top_env = PL_top_env;
434} 368}
435 369
436/* 370/*
437 * allocate various perl stacks. This is an exact copy 371 * allocate various perl stacks. This is an exact copy
438 * of perl.c:init_stacks, except that it uses less memory 372 * of perl.c:init_stacks, except that it uses less memory
439 * on the (sometimes correct) assumption that coroutines do 373 * on the (sometimes correct) assumption that coroutines do
440 * not usually need a lot of stackspace. 374 * not usually need a lot of stackspace.
441 */ 375 */
442static void 376static void
443coro_init_stacks (pTHX) 377coro_init_stacks ()
444{ 378{
445 LOCK;
446
447 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 379 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
448 PL_curstackinfo->si_type = PERLSI_MAIN; 380 PL_curstackinfo->si_type = PERLSI_MAIN;
449 PL_curstack = PL_curstackinfo->si_stack; 381 PL_curstack = PL_curstackinfo->si_stack;
450 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 382 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451 383
… …
472 404
473 New(54,PL_savestack,96,ANY); 405 New(54,PL_savestack,96,ANY);
474 PL_savestack_ix = 0; 406 PL_savestack_ix = 0;
475 PL_savestack_max = 96; 407 PL_savestack_max = 96;
476 408
477#if PERL_VERSION < 9 409#if !PERL_VERSION_ATLEAST (5,9,0)
478 New(54,PL_retstack,8,OP*); 410 New(54,PL_retstack,8,OP*);
479 PL_retstack_ix = 0; 411 PL_retstack_ix = 0;
480 PL_retstack_max = 8; 412 PL_retstack_max = 8;
481#endif 413#endif
482
483 UNLOCK;
484} 414}
485 415
486/* 416/*
487 * destroy the stacks, the callchain etc... 417 * destroy the stacks, the callchain etc...
488 */ 418 */
489static void 419static void
490destroy_stacks(pTHX) 420coro_destroy_stacks ()
491{ 421{
492 if (!IN_DESTRUCT) 422 if (!IN_DESTRUCT)
493 { 423 {
494 /* is this ugly, I ask? */ 424 /* is this ugly, I ask? */
495 LEAVE_SCOPE (0); 425 LEAVE_SCOPE (0);
… …
526 456
527 Safefree (PL_tmps_stack); 457 Safefree (PL_tmps_stack);
528 Safefree (PL_markstack); 458 Safefree (PL_markstack);
529 Safefree (PL_scopestack); 459 Safefree (PL_scopestack);
530 Safefree (PL_savestack); 460 Safefree (PL_savestack);
531#if PERL_VERSION < 9 461#if !PERL_VERSION_ATLEAST (5,9,0)
532 Safefree (PL_retstack); 462 Safefree (PL_retstack);
533#endif 463#endif
534} 464}
535 465
536static void 466static void
537setup_coro (struct coro *coro) 467setup_coro (struct coro *coro)
538{ 468{
539 /* 469 /*
540 * emulate part of the perl startup here. 470 * emulate part of the perl startup here.
541 */ 471 */
542 dTHX;
543 dSP;
544 UNOP myop;
545 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE);
546 472
547 coro_init_stacks (aTHX); 473 coro_init_stacks ();
474
548 /*PL_curcop = 0;*/ 475 PL_curcop = 0;
549 /*PL_in_eval = PL_in_eval;*/ /* inherit */ 476 PL_in_eval = 0;
477 PL_curpm = 0;
478
479 {
480 dSP;
481 LOGOP myop;
482
483 /* I have no idea why this is needed, but it is */
484 PUSHMARK (SP);
485
550 SvREFCNT_dec (GvAV (PL_defgv)); 486 SvREFCNT_dec (GvAV (PL_defgv));
551 GvAV (PL_defgv) = coro->args; coro->args = 0; 487 GvAV (PL_defgv) = coro->args; coro->args = 0;
552 488
553 SPAGAIN;
554
555 Zero (&myop, 1, UNOP); 489 Zero (&myop, 1, LOGOP);
556 myop.op_next = Nullop; 490 myop.op_next = Nullop;
557 myop.op_flags = OPf_WANT_VOID; 491 myop.op_flags = OPf_WANT_VOID;
558 492
559 PL_op = (OP *)&myop; 493 PL_op = (OP *)&myop;
560 494
561 PUSHMARK(SP); 495 PUSHMARK (SP);
562 XPUSHs (sub_init); 496 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
563 PUTBACK; 497 PUTBACK;
564 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 498 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
565 SPAGAIN; 499 SPAGAIN;
566 500
567 ENTER; /* necessary e.g. for dounwind */ 501 ENTER; /* necessary e.g. for dounwind */
502 }
568} 503}
569 504
570static void 505static void
571transfer_tail () 506free_coro_mortal ()
572{ 507{
573 if (coro_mortal) 508 if (coro_mortal)
574 { 509 {
575 SvREFCNT_dec (coro_mortal); 510 SvREFCNT_dec (coro_mortal);
576 coro_mortal = 0; 511 coro_mortal = 0;
577 } 512 }
513}
578 514
515static void NOINLINE
516prepare_cctx (coro_cctx *cctx)
517{
518 dSP;
519 LOGOP myop;
520
521 Zero (&myop, 1, LOGOP);
522 myop.op_next = PL_op;
523 myop.op_flags = OPf_WANT_VOID;
524
525 sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
526
527 PUSHMARK (SP);
528 XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
529 PUTBACK;
530 PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
531 SPAGAIN;
532}
533
534static void
535coro_run (void *arg)
536{
537 /* coro_run is the alternative epilogue of transfer() */
579 UNLOCK; 538 UNLOCK;
580}
581 539
582static void
583coro_run (void *arg)
584{
585 /* 540 /*
586 * this is a _very_ stripped down perl interpreter ;) 541 * this is a _very_ stripped down perl interpreter ;)
587 */ 542 */
588 dTHX;
589
590 transfer_tail ();
591
592 PL_top_env = &PL_start_env; 543 PL_top_env = &PL_start_env;
593 PL_restartop = PL_op->op_next; 544
545 /* inject call to cctx_init */
546 prepare_cctx ((coro_cctx *)arg);
547
594 /* somebody will hit me for both perl_run and PL_restart_top */ 548 /* somebody will hit me for both perl_run and PL_restartop */
595 perl_run (aTHX_ PERL_GET_CONTEXT); 549 perl_run (PL_curinterp);
596 550
551 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
597 abort (); 552 abort ();
598} 553}
599 554
600static coro_stack * 555static coro_cctx *
601stack_new () 556cctx_new ()
602{ 557{
603 coro_stack *stack; 558 coro_cctx *cctx;
604 559
560 ++cctx_count;
561
605 New (0, stack, 1, coro_stack); 562 New (0, cctx, 1, coro_cctx);
606 563
607#if HAVE_MMAP 564#if HAVE_MMAP
608 565
609 stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ 566 cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
567 /* mmap suppsedly does allocate-on-write for us */
610 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 568 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
611 569
612 if (stack->sptr == (void *)-1) 570 if (cctx->sptr == (void *)-1)
613 { 571 {
614 fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n"); 572 perror ("FATAL: unable to mmap stack for coroutine");
615 _exit (EXIT_FAILURE); 573 _exit (EXIT_FAILURE);
616 } 574 }
617 575
576# if STACKGUARD
618 mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); 577 mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
578# endif
619 579
620#else 580#else
621 581
622 stack->ssize = STACKSIZE * (long)sizeof (long); 582 cctx->ssize = STACKSIZE * (long)sizeof (long);
623 New (0, stack->sptr, STACKSIZE, long); 583 New (0, cctx->sptr, STACKSIZE, long);
624 584
625 if (!stack->sptr) 585 if (!cctx->sptr)
626 { 586 {
627 fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n"); 587 perror ("FATAL: unable to malloc stack for coroutine");
628 _exit (EXIT_FAILURE); 588 _exit (EXIT_FAILURE);
629 } 589 }
630 590
631#endif 591#endif
632 592
593#if USE_VALGRIND
594 cctx->valgrind_id = VALGRIND_STACK_REGISTER (
595 STACKGUARD * PAGESIZE + (char *)cctx->sptr,
596 cctx->ssize + (char *)cctx->sptr
597 );
598#endif
599
633 coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize); 600 coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
634 601
635 return stack; 602 return cctx;
636} 603}
637 604
638static void 605static void
639stack_free (coro_stack *stack) 606cctx_free (coro_cctx *cctx)
640{ 607{
641 if (!stack || stack == main_stack) 608 if (!cctx)
642 return; 609 return;
643 610
611 --cctx_count;
612
613#if USE_VALGRIND
614 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
615#endif
616
644#if HAVE_MMAP 617#if HAVE_MMAP
645 munmap (stack->sptr, stack->ssize); 618 munmap (cctx->sptr, cctx->ssize);
646#else 619#else
647 Safefree (stack->sptr); 620 Safefree (cctx->sptr);
648#endif 621#endif
649 622
650 Safefree (stack); 623 Safefree (cctx);
651} 624}
652 625
653static coro_stack *stack_first; 626static coro_cctx *
654 627cctx_get ()
655static void
656stack_get (struct coro *coro)
657{ 628{
629 coro_cctx *cctx;
630
658 if (stack_first) 631 if (cctx_first)
659 { 632 {
660 coro->stack = stack_first; 633 --cctx_idle;
661 stack_first = stack_first->next; 634 cctx = cctx_first;
635 cctx_first = cctx->next;
662 } 636 }
663 else 637 else
664 coro->stack = stack_new (); 638 {
665} 639 cctx = cctx_new ();
640 PL_op = PL_op->op_next;
641 }
666 642
643 return cctx;
644}
645
667static void 646static void
668stack_put (coro_stack *stack) 647cctx_put (coro_cctx *cctx)
669{ 648{
670 stack->next = stack_first; 649 ++cctx_idle;
671 stack_first = stack; 650 cctx->next = cctx_first;
651 cctx_first = cctx;
672} 652}
673 653
674/* never call directly, always through the coro_state_transfer global variable */ 654/* never call directly, always through the coro_state_transfer global variable */
675static void 655static void NOINLINE
676transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) 656transfer (struct coro *prev, struct coro *next, int flags)
677{ 657{
678 dSTACKLEVEL; 658 dSTACKLEVEL;
679 659
680 /* sometimes transfer is only called to set idle_sp */ 660 /* sometimes transfer is only called to set idle_sp */
681 if (!prev->stack->idle_sp) 661 if (flags == TRANSFER_SET_STACKLEVEL)
682 prev->stack->idle_sp = stacklevel; 662 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
683
684 LOCK;
685
686 if (prev != next) 663 else if (prev != next)
687 { 664 {
688 coro_stack *prev_stack = prev->stack; 665 coro_cctx *prev__cctx;
689 666
690 /* possibly "free" the stack */ 667 LOCK;
691 if (prev_stack->idle_sp == stacklevel)
692 {
693 stack_put (prev_stack);
694 prev->stack = 0;
695 }
696 668
697 if (next->mainstack) 669 if (next->mainstack)
698 { 670 {
699 /* coroutine already started */ 671 /* coroutine already started */
700 SAVE (prev, flags); 672 SAVE (prev, flags);
… …
705 /* need to start coroutine */ 677 /* need to start coroutine */
706 /* first get rid of the old state */ 678 /* first get rid of the old state */
707 SAVE (prev, -1); 679 SAVE (prev, -1);
708 /* setup coroutine call */ 680 /* setup coroutine call */
709 setup_coro (next); 681 setup_coro (next);
710 /* need to change stack from main_stack to real one */ 682 /* need a stack */
711 next->stack = 0; 683 next->cctx = 0;
712 } 684 }
713 685
686 if (!prev->cctx)
687 /* create a new empty context */
688 Newz (0, prev->cctx, 1, coro_cctx);
689
690 prev__cctx = prev->cctx;
691
692 /* possibly "free" the cctx */
693 if (prev__cctx->idle_sp == STACKLEVEL)
694 {
695 cctx_put (prev__cctx);
696 prev->cctx = 0;
697 }
698
714 if (!next->stack) 699 if (!next->cctx)
715 stack_get (next); 700 next->cctx = cctx_get ();
716 701
717 if (prev_stack != next->stack) 702 if (prev__cctx != next->cctx)
703 {
704 prev__cctx->top_env = PL_top_env;
705 PL_top_env = next->cctx->top_env;
718 coro_transfer (&prev_stack->cctx, &next->stack->cctx); 706 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
707 }
708
709 free_coro_mortal ();
710
711 UNLOCK;
719 } 712 }
720
721 transfer_tail ();
722} 713}
723 714
724/* use this function pointer to call the above function */ 715struct transfer_args
725/* this is done to increase chances of the compiler not inlining the call */ 716{
726void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; 717 struct coro *prev, *next;
718 int flags;
719};
720
721#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)
727 722
728static void 723static void
729coro_state_destroy (struct coro *coro) 724coro_state_destroy (struct coro *coro)
730{ 725{
731 if (coro->refcnt--) 726 if (coro->refcnt--)
… …
733 728
734 if (coro->mainstack && coro->mainstack != main_mainstack) 729 if (coro->mainstack && coro->mainstack != main_mainstack)
735 { 730 {
736 struct coro temp; 731 struct coro temp;
737 732
738 SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); 733 SAVE ((&temp), TRANSFER_SAVE_ALL);
739 LOAD (aTHX_ coro); 734 LOAD (coro);
740 735
741 destroy_stacks (aTHX); 736 coro_destroy_stacks ();
742 737
743 LOAD ((&temp)); /* this will get rid of defsv etc.. */ 738 LOAD ((&temp)); /* this will get rid of defsv etc.. */
744 739
745 coro->mainstack = 0; 740 coro->mainstack = 0;
746 } 741 }
747 742
748 stack_free (coro->stack); 743 cctx_free (coro->cctx);
749 SvREFCNT_dec (coro->args); 744 SvREFCNT_dec (coro->args);
750 Safefree (coro); 745 Safefree (coro);
751} 746}
752 747
753static int 748static int
754coro_state_clear (SV *sv, MAGIC *mg) 749coro_state_clear (pTHX_ SV *sv, MAGIC *mg)
755{ 750{
756 struct coro *coro = (struct coro *)mg->mg_ptr; 751 struct coro *coro = (struct coro *)mg->mg_ptr;
757 mg->mg_ptr = 0; 752 mg->mg_ptr = 0;
758 753
759 coro_state_destroy (coro); 754 coro_state_destroy (coro);
760 755
761 return 0; 756 return 0;
762} 757}
763 758
764static int 759static int
765coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) 760coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
766{ 761{
767 struct coro *coro = (struct coro *)mg->mg_ptr; 762 struct coro *coro = (struct coro *)mg->mg_ptr;
768 763
769 ++coro->refcnt; 764 ++coro->refcnt;
770 765
771 return 0; 766 return 0;
772} 767}
773 768
774static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; 769static MGVTBL coro_state_vtbl = {
770 0, 0, 0, 0,
771 coro_state_clear,
772 0,
773#ifdef MGf_DUP
774 coro_state_dup,
775#else
776# define MGf_DUP 0
777#endif
778};
775 779
776static struct coro * 780static struct coro *
777SvSTATE (SV *coro) 781SvSTATE (SV *coro)
778{ 782{
779 HV *stash; 783 HV *stash;
… …
794 assert (mg->mg_type == PERL_MAGIC_ext); 798 assert (mg->mg_type == PERL_MAGIC_ext);
795 return (struct coro *)mg->mg_ptr; 799 return (struct coro *)mg->mg_ptr;
796} 800}
797 801
798static void 802static void
803prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags)
804{
805 ta->prev = SvSTATE (prev);
806 ta->next = SvSTATE (next);
807 ta->flags = flags;
808}
809
810static void
799api_transfer (pTHX_ SV *prev, SV *next, int flags) 811api_transfer (SV *prev, SV *next, int flags)
800{ 812{
801 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); 813 dTHX;
814 struct transfer_args ta;
815
816 prepare_transfer (&ta, prev, next, flags);
817 TRANSFER (ta);
802} 818}
803 819
804/** Coro ********************************************************************/ 820/** Coro ********************************************************************/
805 821
806#define PRIO_MAX 3 822#define PRIO_MAX 3
… …
814static GV *coro_current, *coro_idle; 830static GV *coro_current, *coro_idle;
815static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 831static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
816static int coro_nready; 832static int coro_nready;
817 833
818static void 834static void
819coro_enq (pTHX_ SV *sv) 835coro_enq (SV *sv)
820{ 836{
821 int prio; 837 int prio;
822 838
823 if (SvTYPE (sv) != SVt_PVHV) 839 if (SvTYPE (sv) != SVt_PVHV)
824 croak ("Coro::ready tried to enqueue something that is not a coroutine"); 840 croak ("Coro::ready tried to enqueue something that is not a coroutine");
… …
828 av_push (coro_ready [prio - PRIO_MIN], sv); 844 av_push (coro_ready [prio - PRIO_MIN], sv);
829 coro_nready++; 845 coro_nready++;
830} 846}
831 847
832static SV * 848static SV *
833coro_deq (pTHX_ int min_prio) 849coro_deq (int min_prio)
834{ 850{
835 int prio = PRIO_MAX - PRIO_MIN; 851 int prio = PRIO_MAX - PRIO_MIN;
836 852
837 min_prio -= PRIO_MIN; 853 min_prio -= PRIO_MIN;
838 if (min_prio < 0) 854 if (min_prio < 0)
… …
855 871
856 if (SvROK (coro)) 872 if (SvROK (coro))
857 coro = SvRV (coro); 873 coro = SvRV (coro);
858 874
859 LOCK; 875 LOCK;
860 coro_enq (aTHX_ SvREFCNT_inc (coro)); 876 coro_enq (SvREFCNT_inc (coro));
861 UNLOCK; 877 UNLOCK;
862} 878}
863 879
864static void 880static void
865api_schedule (void) 881prepare_schedule (struct transfer_args *ta)
866{ 882{
867 dTHX;
868
869 SV *prev, *next; 883 SV *current, *prev, *next;
884
870 SV *current = GvSV (coro_current); 885 current = GvSV (coro_current);
871 886
872 for (;;) 887 for (;;)
873 { 888 {
874 LOCK; 889 LOCK;
875
876 next = coro_deq (aTHX_ PRIO_MIN); 890 next = coro_deq (PRIO_MIN);
891 UNLOCK;
877 892
878 if (next) 893 if (next)
879 break; 894 break;
880
881 UNLOCK;
882 895
883 { 896 {
884 dSP; 897 dSP;
885 898
886 ENTER; 899 ENTER;
… …
897 910
898 prev = SvRV (current); 911 prev = SvRV (current);
899 SvRV (current) = next; 912 SvRV (current) = next;
900 913
901 /* free this only after the transfer */ 914 /* free this only after the transfer */
915 LOCK;
916 free_coro_mortal ();
917 UNLOCK;
902 coro_mortal = prev; 918 coro_mortal = prev;
903 919
920 ta->prev = SvSTATE (prev);
921 ta->next = SvSTATE (next);
922 ta->flags = TRANSFER_SAVE_ALL;
923}
924
925static void
926prepare_cede (struct transfer_args *ta)
927{
928 LOCK;
929 coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
904 UNLOCK; 930 UNLOCK;
905 931
906 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL); 932 prepare_schedule (ta);
907} 933}
908 934
909static int coro_cede_self; 935static void
936api_schedule (void)
937{
938 dTHX;
939 struct transfer_args ta;
940
941 prepare_schedule (&ta);
942 TRANSFER (ta);
943}
910 944
911static void 945static void
912api_cede (void) 946api_cede (void)
913{ 947{
914 dTHX; 948 dTHX;
915 SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current))); 949 struct transfer_args ta;
916 950
917 LOCK; 951 prepare_cede (&ta);
918 952 TRANSFER (ta);
919 if (coro_cede_self)
920 {
921 AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];
922 av_unshift (runqueue, 1);
923 av_store (runqueue, 0, current);
924 coro_nready++;
925 coro_cede_self = 0;
926 }
927 else
928 coro_enq (aTHX_ current);
929
930 UNLOCK;
931
932 api_schedule ();
933} 953}
934 954
935MODULE = Coro::State PACKAGE = Coro::State 955MODULE = Coro::State PACKAGE = Coro::State
936 956
937PROTOTYPES: DISABLE 957PROTOTYPES: DISABLE
… …
952 main_mainstack = PL_mainstack; 972 main_mainstack = PL_mainstack;
953 973
954 coroapi.ver = CORO_API_VERSION; 974 coroapi.ver = CORO_API_VERSION;
955 coroapi.transfer = api_transfer; 975 coroapi.transfer = api_transfer;
956 976
957 Newz (0, main_stack, 1, coro_stack);
958 main_stack->idle_sp = (void *)-1;
959
960 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 977 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
961} 978}
962 979
963SV * 980SV *
964new (char *klass, ...) 981new (char *klass, ...)
… …
973 990
974 hv = newHV (); 991 hv = newHV ();
975 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 992 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
976 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 993 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
977 994
978 av_push (coro->args, newSVsv (RETVAL));
979 for (i = 1; i < items; i++) 995 for (i = 1; i < items; i++)
980 av_push (coro->args, newSVsv (ST (i))); 996 av_push (coro->args, newSVsv (ST (i)));
981
982 coro->stack = main_stack;
983 /*coro->mainstack = 0; *//*actual work is done inside transfer */
984 /*coro->stack = 0;*/
985} 997}
986 OUTPUT: 998 OUTPUT:
987 RETVAL 999 RETVAL
988 1000
989void 1001void
990transfer (prev, next, flags) 1002_set_stacklevel (...)
991 SV *prev 1003 ALIAS:
992 SV *next 1004 Coro::State::transfer = 1
993 int flags 1005 Coro::schedule = 2
1006 Coro::cede = 3
1007 Coro::Cont::yield = 4
994 CODE: 1008 CODE:
995 PUTBACK;
996 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
997 SPAGAIN;
998
999int
1000prio (Coro::State coro, int newprio = 0)
1001 ALIAS:
1002 nice = 1
1003 CODE:
1004{ 1009{
1005 RETVAL = coro->prio; 1010 struct transfer_args ta;
1006 1011
1007 if (items > 1) 1012 switch (ix)
1008 { 1013 {
1014 case 0:
1015 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1016 ta.next = 0;
1017 ta.flags = TRANSFER_SET_STACKLEVEL;
1018 break;
1019
1020 case 1:
1009 if (ix) 1021 if (items != 3)
1010 newprio += coro->prio; 1022 croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1011 1023
1012 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 1024 prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1013 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 1025 break;
1014 1026
1015 coro->prio = newprio; 1027 case 2:
1028 prepare_schedule (&ta);
1029 break;
1030
1031 case 3:
1032 prepare_cede (&ta);
1033 break;
1034
1035 case 4:
1036 {
1037 SV *yieldstack;
1038 SV *sv;
1039 AV *defav = GvAV (PL_defgv);
1040
1041 yieldstack = *hv_fetch (
1042 (HV *)SvRV (GvSV (coro_current)),
1043 "yieldstack", sizeof ("yieldstack") - 1,
1044 0
1045 );
1046
1047 /* set up @_ -- ugly */
1048 av_clear (defav);
1049 av_fill (defav, items - 1);
1050 while (items--)
1051 av_store (defav, items, SvREFCNT_inc (ST(items)));
1052
1053 sv = av_pop ((AV *)SvRV (yieldstack));
1054 ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0));
1055 ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0));
1056 ta.flags = 0;
1057 SvREFCNT_dec (sv);
1058 }
1059 break;
1060
1016 } 1061 }
1017}
1018 1062
1019void 1063 TRANSFER (ta);
1020_clear_idle_sp (Coro::State self) 1064}
1021 CODE:
1022 self->stack->idle_sp = 0;
1023 1065
1024void 1066void
1025_clone_state_from (SV *dst, SV *src) 1067_clone_state_from (SV *dst, SV *src)
1026 CODE: 1068 CODE:
1027{ 1069{
… …
1038 int code 1080 int code
1039 PROTOTYPE: $ 1081 PROTOTYPE: $
1040 CODE: 1082 CODE:
1041 _exit (code); 1083 _exit (code);
1042 1084
1043MODULE = Coro::State PACKAGE = Coro::Cont 1085int
1086cctx_count ()
1087 CODE:
1088 RETVAL = cctx_count;
1089 OUTPUT:
1090 RETVAL
1044 1091
1045void 1092int
1046yield (...) 1093cctx_idle ()
1047 PROTOTYPE: @ 1094 CODE:
1048 CODE: 1095 RETVAL = cctx_idle;
1049{ 1096 OUTPUT:
1050 SV *yieldstack; 1097 RETVAL
1051 SV *sv;
1052 AV *defav = GvAV (PL_defgv);
1053 struct coro *prev, *next;
1054
1055 yieldstack = *hv_fetch (
1056 (HV *)SvRV (GvSV (coro_current)),
1057 "yieldstack", sizeof ("yieldstack") - 1,
1058 0
1059 );
1060
1061 /* set up @_ -- ugly */
1062 av_clear (defav);
1063 av_fill (defav, items - 1);
1064 while (items--)
1065 av_store (defav, items, SvREFCNT_inc (ST(items)));
1066
1067 sv = av_pop ((AV *)SvRV (yieldstack));
1068 prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0));
1069 next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0));
1070 SvREFCNT_dec (sv);
1071
1072 coro_state_transfer (aTHX_ prev, next, 0);
1073}
1074 1098
1075MODULE = Coro::State PACKAGE = Coro 1099MODULE = Coro::State PACKAGE = Coro
1076 1100
1077BOOT: 1101BOOT:
1078{ 1102{
… …
1104 1128
1105 GCoroAPI = &coroapi; 1129 GCoroAPI = &coroapi;
1106 sv_setiv (sv, (IV)&coroapi); 1130 sv_setiv (sv, (IV)&coroapi);
1107 SvREADONLY_on (sv); 1131 SvREADONLY_on (sv);
1108 } 1132 }
1133}
1134
1135int
1136prio (Coro::State coro, int newprio = 0)
1137 ALIAS:
1138 nice = 1
1139 CODE:
1140{
1141 RETVAL = coro->prio;
1142
1143 if (items > 1)
1144 {
1145 if (ix)
1146 newprio += coro->prio;
1147
1148 if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1149 if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1150
1151 coro->prio = newprio;
1152 }
1109} 1153}
1110 1154
1111void 1155void
1112ready (SV *self) 1156ready (SV *self)
1113 PROTOTYPE: $ 1157 PROTOTYPE: $
… …
1120 CODE: 1164 CODE:
1121 RETVAL = coro_nready; 1165 RETVAL = coro_nready;
1122 OUTPUT: 1166 OUTPUT:
1123 RETVAL 1167 RETVAL
1124 1168
1125void
1126schedule (...)
1127 PROTOTYPE:
1128 CODE:
1129 api_schedule ();
1130
1131void
1132_set_cede_self ()
1133 CODE:
1134 coro_cede_self = 1;
1135
1136void
1137cede (...)
1138 PROTOTYPE:
1139 CODE:
1140 api_cede ();
1141
1142MODULE = Coro::State PACKAGE = Coro::AIO 1169MODULE = Coro::State PACKAGE = Coro::AIO
1143 1170
1144SV * 1171SV *
1145_get_state () 1172_get_state ()
1146 CODE: 1173 CODE:

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