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Comparing Coro/Coro/State.xs (file contents):
Revision 1.378 by root, Sat Dec 12 01:30:26 2009 UTC vs.
Revision 1.449 by root, Sun Jun 21 17:02:49 2015 UTC

1#define NDEBUG 1 1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1 /* perl usually disables NDEBUG later */
2 5
3#include "libcoro/coro.c" 6#include "libcoro/coro.c"
4 7
5#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
6#define PERL_EXT 9#define PERL_EXT
… …
10#include "XSUB.h" 13#include "XSUB.h"
11#include "perliol.h" 14#include "perliol.h"
12 15
13#include "schmorp.h" 16#include "schmorp.h"
14 17
18#define ECB_NO_THREADS 1
19#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
15#include <stdio.h> 23#include <stdio.h>
16#include <errno.h> 24#include <errno.h>
17#include <assert.h> 25#include <assert.h>
18 26
19#ifndef SVs_PADSTALE 27#ifndef SVs_PADSTALE
20# define SVs_PADSTALE 0 28# define SVs_PADSTALE 0
21#endif 29#endif
22 30
23#ifdef WIN32 31#ifdef PadARRAY
32# define NEWPADAPI 1
33# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
34#else
35typedef AV PADNAMELIST;
36# if !PERL_VERSION_ATLEAST(5,8,0)
37typedef AV PADLIST;
38typedef AV PAD;
39# endif
40# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
41# define PadlistMAX(pl) AvFILLp (pl)
42# define PadlistNAMES(pl) (*PadlistARRAY (pl))
43# define PadARRAY AvARRAY
44# define PadMAX AvFILLp
45# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
46#endif
47#ifndef PadnamelistREFCNT
48# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
49#endif
50#ifndef PadnamelistREFCNT_dec
51# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
52#endif
53
54/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
55/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
56#if PERL_VERSION_ATLEAST(5,19,0)
57# define SVt_BIND SVt_IV
58#endif
59
60#if defined(_WIN32)
61# undef HAS_GETTIMEOFDAY
24# undef setjmp 62# undef setjmp
25# undef longjmp 63# undef longjmp
26# undef _exit 64# undef _exit
27# define setjmp _setjmp /* deep magic */ 65# define setjmp _setjmp /* deep magic */
28#else 66#else
29# include <inttypes.h> /* most portable stdint.h */ 67# include <inttypes.h> /* most portable stdint.h */
30#endif 68#endif
31 69
32#ifdef HAVE_MMAP
33# include <unistd.h>
34# include <sys/mman.h>
35# ifndef MAP_ANONYMOUS
36# ifdef MAP_ANON
37# define MAP_ANONYMOUS MAP_ANON
38# else
39# undef HAVE_MMAP
40# endif
41# endif
42# include <limits.h>
43# ifndef PAGESIZE
44# define PAGESIZE pagesize
45# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
46static long pagesize;
47# else
48# define BOOT_PAGESIZE (void)0
49# endif
50#else
51# define PAGESIZE 0
52# define BOOT_PAGESIZE (void)0
53#endif
54
55#if CORO_USE_VALGRIND
56# include <valgrind/valgrind.h>
57#endif
58
59/* the maximum number of idle cctx that will be pooled */ 70/* the maximum number of idle cctx that will be pooled */
60static int cctx_max_idle = 4; 71static int cctx_max_idle = 4;
61 72
62#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 73#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
63# undef CORO_STACKGUARD 74# define HAS_SCOPESTACK_NAME 1
64#endif
65
66#ifndef CORO_STACKGUARD
67# define CORO_STACKGUARD 0
68#endif 75#endif
69 76
70/* prefer perl internal functions over our own? */ 77/* prefer perl internal functions over our own? */
71#ifndef CORO_PREFER_PERL_FUNCTIONS 78#ifndef CORO_PREFER_PERL_FUNCTIONS
72# define CORO_PREFER_PERL_FUNCTIONS 0 79# define CORO_PREFER_PERL_FUNCTIONS 0
… …
82# define STACKLEVEL ((void *)&stacklevel) 89# define STACKLEVEL ((void *)&stacklevel)
83#endif 90#endif
84 91
85#define IN_DESTRUCT PL_dirty 92#define IN_DESTRUCT PL_dirty
86 93
87#if __GNUC__ >= 3
88# define attribute(x) __attribute__(x)
89# define expect(expr,value) __builtin_expect ((expr), (value))
90# define INLINE static inline
91#else
92# define attribute(x)
93# define expect(expr,value) (expr)
94# define INLINE static
95#endif
96
97#define expect_false(expr) expect ((expr) != 0, 0)
98#define expect_true(expr) expect ((expr) != 0, 1)
99
100#define NOINLINE attribute ((noinline))
101
102#include "CoroAPI.h" 94#include "CoroAPI.h"
103#define GCoroAPI (&coroapi) /* very sneaky */ 95#define GCoroAPI (&coroapi) /* very sneaky */
104 96
105#ifdef USE_ITHREADS 97#ifdef USE_ITHREADS
106# if CORO_PTHREAD 98# if CORO_PTHREAD
… …
122static void (*u2time)(pTHX_ UV ret[2]); 114static void (*u2time)(pTHX_ UV ret[2]);
123 115
124/* we hijack an hopefully unused CV flag for our purposes */ 116/* we hijack an hopefully unused CV flag for our purposes */
125#define CVf_SLF 0x4000 117#define CVf_SLF 0x4000
126static OP *pp_slf (pTHX); 118static OP *pp_slf (pTHX);
119static void slf_destroy (pTHX_ struct coro *coro);
127 120
128static U32 cctx_gen; 121static U32 cctx_gen;
129static size_t cctx_stacksize = CORO_STACKSIZE; 122static size_t cctx_stacksize = CORO_STACKSIZE;
130static struct CoroAPI coroapi; 123static struct CoroAPI coroapi;
131static AV *main_mainstack; /* used to differentiate between $main and others */ 124static AV *main_mainstack; /* used to differentiate between $main and others */
… …
161static char times_valid; 154static char times_valid;
162 155
163static struct coro_cctx *cctx_first; 156static struct coro_cctx *cctx_first;
164static int cctx_count, cctx_idle; 157static int cctx_count, cctx_idle;
165 158
166enum { 159enum
160{
167 CC_MAPPED = 0x01, 161 CC_MAPPED = 0x01,
168 CC_NOREUSE = 0x02, /* throw this away after tracing */ 162 CC_NOREUSE = 0x02, /* throw this away after tracing */
169 CC_TRACE = 0x04, 163 CC_TRACE = 0x04,
170 CC_TRACE_SUB = 0x08, /* trace sub calls */ 164 CC_TRACE_SUB = 0x08, /* trace sub calls */
171 CC_TRACE_LINE = 0x10, /* trace each statement */ 165 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
176typedef struct coro_cctx 170typedef struct coro_cctx
177{ 171{
178 struct coro_cctx *next; 172 struct coro_cctx *next;
179 173
180 /* the stack */ 174 /* the stack */
181 void *sptr; 175 struct coro_stack stack;
182 size_t ssize;
183 176
184 /* cpu state */ 177 /* cpu state */
185 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 178 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
179#ifndef NDEBUG
186 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 180 JMPENV *idle_te; /* same as idle_sp, but for top_env */
181#endif
187 JMPENV *top_env; 182 JMPENV *top_env;
188 coro_context cctx; 183 coro_context cctx;
189 184
190 U32 gen; 185 U32 gen;
191#if CORO_USE_VALGRIND 186#if CORO_USE_VALGRIND
192 int valgrind_id; 187 int valgrind_id;
193#endif 188#endif
194 unsigned char flags; 189 unsigned char flags;
195} coro_cctx; 190} coro_cctx;
196 191
197coro_cctx *cctx_current; /* the currently running cctx */ 192static coro_cctx *cctx_current; /* the currently running cctx */
198 193
199/*****************************************************************************/ 194/*****************************************************************************/
200 195
196static MGVTBL coro_state_vtbl;
197
201enum { 198enum
199{
202 CF_RUNNING = 0x0001, /* coroutine is running */ 200 CF_RUNNING = 0x0001, /* coroutine is running */
203 CF_READY = 0x0002, /* coroutine is ready */ 201 CF_READY = 0x0002, /* coroutine is ready */
204 CF_NEW = 0x0004, /* has never been switched to */ 202 CF_NEW = 0x0004, /* has never been switched to */
205 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 203 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
206 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 204 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
205 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
207}; 206};
208 207
209/* the structure where most of the perl state is stored, overlaid on the cxstack */ 208/* the structure where most of the perl state is stored, overlaid on the cxstack */
210typedef struct 209typedef struct
211{ 210{
212 SV *defsv;
213 AV *defav;
214 SV *errsv;
215 SV *irsgv;
216 HV *hinthv;
217#define VAR(name,type) type name; 211 #define VARx(name,expr,type) type name;
218# include "state.h" 212 #include "state.h"
219#undef VAR
220} perl_slots; 213} perl_slots;
221 214
215/* how many context stack entries do we need for perl_slots */
222#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 216#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
223 217
224/* this is a structure representing a perl-level coroutine */ 218/* this is a structure representing a perl-level coroutine */
225struct coro { 219struct coro
220{
226 /* the C coroutine allocated to this perl coroutine, if any */ 221 /* the C coroutine allocated to this perl coroutine, if any */
227 coro_cctx *cctx; 222 coro_cctx *cctx;
228 223
229 /* ready queue */ 224 /* ready queue */
230 struct coro *next_ready; 225 struct coro *next_ready;
… …
232 /* state data */ 227 /* state data */
233 struct CoroSLF slf_frame; /* saved slf frame */ 228 struct CoroSLF slf_frame; /* saved slf frame */
234 AV *mainstack; 229 AV *mainstack;
235 perl_slots *slot; /* basically the saved sp */ 230 perl_slots *slot; /* basically the saved sp */
236 231
237 CV *startcv; /* the CV to execute */ 232 CV *startcv; /* the CV to execute */
238 AV *args; /* data associated with this coroutine (initial args) */ 233 AV *args; /* data associated with this coroutine (initial args) */
239 int refcnt; /* coroutines are refcounted, yes */
240 int flags; /* CF_ flags */ 234 int flags; /* CF_ flags */
241 HV *hv; /* the perl hash associated with this coro, if any */ 235 HV *hv; /* the perl hash associated with this coro, if any */
242 void (*on_destroy)(pTHX_ struct coro *coro);
243 236
244 /* statistics */ 237 /* statistics */
245 int usecount; /* number of transfers to this coro */ 238 int usecount; /* number of transfers to this coro */
246 239
247 /* coro process data */ 240 /* coro process data */
248 int prio; 241 int prio;
249 SV *except; /* exception to be thrown */ 242 SV *except; /* exception to be thrown */
250 SV *rouse_cb; 243 SV *rouse_cb; /* last rouse callback */
244 AV *on_destroy; /* callbacks or coros to notify on destroy */
245 AV *status; /* the exit status list */
251 246
252 /* async_pool */ 247 /* async_pool */
253 SV *saved_deffh; 248 SV *saved_deffh;
254 SV *invoke_cb; 249 SV *invoke_cb;
255 AV *invoke_av; 250 AV *invoke_av;
… …
271typedef struct coro *Coro__State; 266typedef struct coro *Coro__State;
272typedef struct coro *Coro__State_or_hashref; 267typedef struct coro *Coro__State_or_hashref;
273 268
274/* the following variables are effectively part of the perl context */ 269/* the following variables are effectively part of the perl context */
275/* and get copied between struct coro and these variables */ 270/* and get copied between struct coro and these variables */
276/* the mainr easonw e don't support windows process emulation */ 271/* the main reason we don't support windows process emulation */
277static struct CoroSLF slf_frame; /* the current slf frame */ 272static struct CoroSLF slf_frame; /* the current slf frame */
278 273
279/** Coro ********************************************************************/ 274/** Coro ********************************************************************/
280 275
281#define CORO_PRIO_MAX 3 276#define CORO_PRIO_MAX 3
… …
287 282
288/* for Coro.pm */ 283/* for Coro.pm */
289static SV *coro_current; 284static SV *coro_current;
290static SV *coro_readyhook; 285static SV *coro_readyhook;
291static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 286static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
292static CV *cv_coro_run, *cv_coro_terminate; 287static CV *cv_coro_run;
293static struct coro *coro_first; 288static struct coro *coro_first;
294#define coro_nready coroapi.nready 289#define coro_nready coroapi.nready
290
291/** JIT *********************************************************************/
292
293#if CORO_JIT
294 /* APPLE doesn't have mmap though */
295 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
296 #ifndef CORO_JIT_TYPE
297 #if ECB_AMD64 && CORO_JIT_UNIXY
298 #define CORO_JIT_TYPE "amd64-unix"
299 #elif __i386 && CORO_JIT_UNIXY
300 #define CORO_JIT_TYPE "x86-unix"
301 #endif
302 #endif
303#endif
304
305#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
306 #undef CORO_JIT
307#endif
308
309#if CORO_JIT
310 typedef void (*load_save_perl_slots_type)(perl_slots *);
311 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
312#endif
295 313
296/** Coro::Select ************************************************************/ 314/** Coro::Select ************************************************************/
297 315
298static OP *(*coro_old_pp_sselect) (pTHX); 316static OP *(*coro_old_pp_sselect) (pTHX);
299static SV *coro_select_select; 317static SV *coro_select_select;
… …
311 PL_op->op_flags |= OPf_STACKED; 329 PL_op->op_flags |= OPf_STACKED;
312 PL_op->op_private = 0; 330 PL_op->op_private = 0;
313 return PL_ppaddr [OP_ENTERSUB](aTHX); 331 return PL_ppaddr [OP_ENTERSUB](aTHX);
314} 332}
315 333
334/** time stuff **************************************************************/
335
336#ifdef HAS_GETTIMEOFDAY
337
338ecb_inline void
339coro_u2time (pTHX_ UV ret[2])
340{
341 struct timeval tv;
342 gettimeofday (&tv, 0);
343
344 ret [0] = tv.tv_sec;
345 ret [1] = tv.tv_usec;
346}
347
348ecb_inline double
349coro_nvtime (void)
350{
351 struct timeval tv;
352 gettimeofday (&tv, 0);
353
354 return tv.tv_sec + tv.tv_usec * 1e-6;
355}
356
357ecb_inline void
358time_init (pTHX)
359{
360 nvtime = coro_nvtime;
361 u2time = coro_u2time;
362}
363
364#else
365
366ecb_inline void
367time_init (pTHX)
368{
369 SV **svp;
370
371 require_pv ("Time/HiRes.pm");
372
373 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
374
375 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
376 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
377
378 nvtime = INT2PTR (double (*)(), SvIV (*svp));
379
380 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
381 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
382}
383
384#endif
385
316/** lowlevel stuff **********************************************************/ 386/** lowlevel stuff **********************************************************/
317 387
318static SV * 388static SV * ecb_noinline
319coro_get_sv (pTHX_ const char *name, int create) 389coro_get_sv (pTHX_ const char *name, int create)
320{ 390{
321#if PERL_VERSION_ATLEAST (5,10,0) 391#if PERL_VERSION_ATLEAST (5,10,0)
322 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 392 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
323 get_sv (name, create); 393 get_sv (name, create);
324#endif 394#endif
325 return get_sv (name, create); 395 return get_sv (name, create);
326} 396}
327 397
328static AV * 398static AV * ecb_noinline
329coro_get_av (pTHX_ const char *name, int create) 399coro_get_av (pTHX_ const char *name, int create)
330{ 400{
331#if PERL_VERSION_ATLEAST (5,10,0) 401#if PERL_VERSION_ATLEAST (5,10,0)
332 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 402 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
333 get_av (name, create); 403 get_av (name, create);
334#endif 404#endif
335 return get_av (name, create); 405 return get_av (name, create);
336} 406}
337 407
338static HV * 408static HV * ecb_noinline
339coro_get_hv (pTHX_ const char *name, int create) 409coro_get_hv (pTHX_ const char *name, int create)
340{ 410{
341#if PERL_VERSION_ATLEAST (5,10,0) 411#if PERL_VERSION_ATLEAST (5,10,0)
342 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 412 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
343 get_hv (name, create); 413 get_hv (name, create);
344#endif 414#endif
345 return get_hv (name, create); 415 return get_hv (name, create);
346} 416}
347 417
348INLINE void 418ecb_inline void
349coro_times_update () 419coro_times_update (void)
350{ 420{
351#ifdef coro_clock_gettime 421#ifdef coro_clock_gettime
352 struct timespec ts; 422 struct timespec ts;
353 423
354 ts.tv_sec = ts.tv_nsec = 0; 424 ts.tv_sec = ts.tv_nsec = 0;
… …
366 time_real [0] = tv [0]; 436 time_real [0] = tv [0];
367 time_real [1] = tv [1] * 1000; 437 time_real [1] = tv [1] * 1000;
368#endif 438#endif
369} 439}
370 440
371INLINE void 441ecb_inline void
372coro_times_add (struct coro *c) 442coro_times_add (struct coro *c)
373{ 443{
374 c->t_real [1] += time_real [1]; 444 c->t_real [1] += time_real [1];
375 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 445 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
376 c->t_real [0] += time_real [0]; 446 c->t_real [0] += time_real [0];
… …
378 c->t_cpu [1] += time_cpu [1]; 448 c->t_cpu [1] += time_cpu [1];
379 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 449 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
380 c->t_cpu [0] += time_cpu [0]; 450 c->t_cpu [0] += time_cpu [0];
381} 451}
382 452
383INLINE void 453ecb_inline void
384coro_times_sub (struct coro *c) 454coro_times_sub (struct coro *c)
385{ 455{
386 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 456 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
387 c->t_real [1] -= time_real [1]; 457 c->t_real [1] -= time_real [1];
388 c->t_real [0] -= time_real [0]; 458 c->t_real [0] -= time_real [0];
… …
396/* magic glue */ 466/* magic glue */
397 467
398#define CORO_MAGIC_type_cv 26 468#define CORO_MAGIC_type_cv 26
399#define CORO_MAGIC_type_state PERL_MAGIC_ext 469#define CORO_MAGIC_type_state PERL_MAGIC_ext
400 470
401#define CORO_MAGIC_NN(sv, type) \ 471#define CORO_MAGIC_NN(sv, type) \
402 (expect_true (SvMAGIC (sv)->mg_type == type) \ 472 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
403 ? SvMAGIC (sv) \ 473 ? SvMAGIC (sv) \
404 : mg_find (sv, type)) 474 : mg_find (sv, type))
405 475
406#define CORO_MAGIC(sv, type) \ 476#define CORO_MAGIC(sv, type) \
407 (expect_true (SvMAGIC (sv)) \ 477 (ecb_expect_true (SvMAGIC (sv)) \
408 ? CORO_MAGIC_NN (sv, type) \ 478 ? CORO_MAGIC_NN (sv, type) \
409 : 0) 479 : 0)
410 480
411#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 481#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
412#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 482#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
413 483
414INLINE struct coro * 484ecb_inline MAGIC *
485SvSTATEhv_p (pTHX_ SV *coro)
486{
487 MAGIC *mg;
488
489 if (ecb_expect_true (
490 SvTYPE (coro) == SVt_PVHV
491 && (mg = CORO_MAGIC_state (coro))
492 && mg->mg_virtual == &coro_state_vtbl
493 ))
494 return mg;
495
496 return 0;
497}
498
499ecb_inline struct coro *
415SvSTATE_ (pTHX_ SV *coro) 500SvSTATE_ (pTHX_ SV *coro)
416{ 501{
417 HV *stash;
418 MAGIC *mg; 502 MAGIC *mg;
419 503
420 if (SvROK (coro)) 504 if (SvROK (coro))
421 coro = SvRV (coro); 505 coro = SvRV (coro);
422 506
423 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 507 mg = SvSTATEhv_p (aTHX_ coro);
508 if (!mg)
424 croak ("Coro::State object required"); 509 croak ("Coro::State object required");
425 510
426 stash = SvSTASH (coro);
427 if (expect_false (stash != coro_stash && stash != coro_state_stash))
428 {
429 /* very slow, but rare, check */
430 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
431 croak ("Coro::State object required");
432 }
433
434 mg = CORO_MAGIC_state (coro);
435 return (struct coro *)mg->mg_ptr; 511 return (struct coro *)mg->mg_ptr;
436} 512}
437 513
438#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 514#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
439 515
… …
442#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 518#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
443 519
444/*****************************************************************************/ 520/*****************************************************************************/
445/* padlist management and caching */ 521/* padlist management and caching */
446 522
447static AV * 523ecb_inline PADLIST *
448coro_derive_padlist (pTHX_ CV *cv) 524coro_derive_padlist (pTHX_ CV *cv)
449{ 525{
450 AV *padlist = CvPADLIST (cv); 526 PADLIST *padlist = CvPADLIST (cv);
451 AV *newpadlist, *newpad; 527 PADLIST *newpadlist;
528 PADNAMELIST *padnames;
529 PAD *newpad;
530 PADOFFSET off = PadlistMAX (padlist) + 1;
452 531
453 newpadlist = newAV (); 532#if NEWPADAPI
533
534 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
535 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
536 while (!PadlistARRAY (padlist)[off - 1])
537 --off;
538
539 Perl_pad_push (aTHX_ padlist, off);
540
541 newpad = PadlistARRAY (padlist)[off];
542 PadlistARRAY (padlist)[off] = 0;
543
544#else
545
546#if PERL_VERSION_ATLEAST (5,10,0)
547 Perl_pad_push (aTHX_ padlist, off);
548#else
549 Perl_pad_push (aTHX_ padlist, off, 1);
550#endif
551
552 newpad = PadlistARRAY (padlist)[off];
553 PadlistMAX (padlist) = off - 1;
554
555#endif
556
557 newPADLIST (newpadlist);
558#if !PERL_VERSION_ATLEAST(5,15,3)
559 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
454 AvREAL_off (newpadlist); 560 AvREAL_off (newpadlist);
455#if PERL_VERSION_ATLEAST (5,10,0)
456 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
457#else
458 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
459#endif 561#endif
460 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
461 --AvFILLp (padlist);
462 562
463 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 563 /* Already extended to 2 elements by newPADLIST. */
464 av_store (newpadlist, 1, (SV *)newpad); 564 PadlistMAX (newpadlist) = 1;
565
566 padnames = PadlistNAMES (padlist);
567 ++PadnamelistREFCNT (padnames);
568 PadlistNAMES (newpadlist) = padnames;
569
570 PadlistARRAY (newpadlist)[1] = newpad;
465 571
466 return newpadlist; 572 return newpadlist;
467} 573}
468 574
469static void 575ecb_inline void
470free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
471{ 577{
472 /* may be during global destruction */ 578 /* may be during global destruction */
473 if (!IN_DESTRUCT) 579 if (!IN_DESTRUCT)
474 { 580 {
475 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
476 582
477 while (i > 0) /* special-case index 0 */ 583 while (i > 0) /* special-case index 0 */
478 { 584 {
479 /* we try to be extra-careful here */ 585 /* we try to be extra-careful here */
480 AV *av = (AV *)AvARRAY (padlist)[i--]; 586 PAD *pad = PadlistARRAY (padlist)[i--];
481 I32 j = AvFILLp (av);
482 587
588 if (pad)
589 {
590 I32 j = PadMAX (pad);
591
483 while (j >= 0) 592 while (j >= 0)
484 SvREFCNT_dec (AvARRAY (av)[j--]); 593 SvREFCNT_dec (PadARRAY (pad)[j--]);
485 594
486 AvFILLp (av) = -1; 595 PadMAX (pad) = -1;
487 SvREFCNT_dec (av); 596 SvREFCNT_dec (pad);
597 }
488 } 598 }
489 599
490 SvREFCNT_dec (AvARRAY (padlist)[0]); 600 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
491 601
602#if NEWPADAPI
603 Safefree (PadlistARRAY (padlist));
604 Safefree (padlist);
605#else
492 AvFILLp (padlist) = -1; 606 AvFILLp (padlist) = -1;
607 AvREAL_off (padlist);
493 SvREFCNT_dec ((SV*)padlist); 608 SvREFCNT_dec ((SV*)padlist);
609#endif
494 } 610 }
495} 611}
496 612
497static int 613static int
498coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 614coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
499{ 615{
500 AV *padlist; 616 PADLIST *padlist;
501 AV *av = (AV *)mg->mg_obj; 617 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
618 size_t len = *(size_t *)mg->mg_ptr;
502 619
503 /* perl manages to free our internal AV and _then_ call us */ 620 /* perl manages to free our internal AV and _then_ call us */
504 if (IN_DESTRUCT) 621 if (IN_DESTRUCT)
505 return 0; 622 return 0;
506 623
507 /* casting is fun. */ 624 while (len--)
508 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
509 free_padlist (aTHX_ padlist); 625 free_padlist (aTHX_ padlists[len]);
510
511 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
512 626
513 return 0; 627 return 0;
514} 628}
515 629
516static MGVTBL coro_cv_vtbl = { 630static MGVTBL coro_cv_vtbl = {
517 0, 0, 0, 0, 631 0, 0, 0, 0,
518 coro_cv_free 632 coro_cv_free
519}; 633};
520 634
521/* the next two functions merely cache the padlists */ 635/* the next two functions merely cache the padlists */
522static void 636ecb_inline void
523get_padlist (pTHX_ CV *cv) 637get_padlist (pTHX_ CV *cv)
524{ 638{
525 MAGIC *mg = CORO_MAGIC_cv (cv); 639 MAGIC *mg = CORO_MAGIC_cv (cv);
526 AV *av; 640 size_t *lenp;
527 641
528 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 642 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
529 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 643 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
530 else 644 else
531 { 645 {
532#if CORO_PREFER_PERL_FUNCTIONS 646#if CORO_PREFER_PERL_FUNCTIONS
533 /* this is probably cleaner? but also slower! */ 647 /* this is probably cleaner? but also slower! */
534 /* in practise, it seems to be less stable */ 648 /* in practise, it seems to be less stable */
… …
540 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 654 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
541#endif 655#endif
542 } 656 }
543} 657}
544 658
545static void 659ecb_inline void
546put_padlist (pTHX_ CV *cv) 660put_padlist (pTHX_ CV *cv)
547{ 661{
548 MAGIC *mg = CORO_MAGIC_cv (cv); 662 MAGIC *mg = CORO_MAGIC_cv (cv);
549 AV *av;
550 663
551 if (expect_false (!mg)) 664 if (ecb_expect_false (!mg))
665 {
552 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 666 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
667 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
668 mg->mg_len = 1; /* so mg_free frees mg_ptr */
669 }
670 else
671 Renew (mg->mg_ptr,
672 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
673 char);
553 674
554 av = (AV *)mg->mg_obj; 675 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
555
556 if (expect_false (AvFILLp (av) >= AvMAX (av)))
557 av_extend (av, AvFILLp (av) + 1);
558
559 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
560} 676}
561 677
562/** load & save, init *******************************************************/ 678/** load & save, init *******************************************************/
563 679
680ecb_inline void
681swap_sv (SV *a, SV *b)
682{
683 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
684 SV tmp;
685
686 /* swap sv_any */
687 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
688
689 /* swap sv_flags */
690 SvFLAGS (&tmp) = SvFLAGS (a);
691 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
692 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
693
694#if PERL_VERSION_ATLEAST (5,10,0)
695 /* perl 5.10 and later complicates this _quite_ a bit, but it also
696 * is much faster, so no quarrels here. alternatively, we could
697 * sv_upgrade to avoid this.
698 */
699 {
700 /* swap sv_u */
701 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
702
703 /* if SvANY points to the head, we need to adjust the pointers,
704 * as the pointer for a still points to b, and maybe vice versa.
705 */
706 #define svany_in_head(type) \
707 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
708
709 if (svany_in_head (SvTYPE (a)))
710 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
711
712 if (svany_in_head (SvTYPE (b)))
713 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
714 }
715#endif
716}
717
564/* swap sv heads, at least logically */ 718/* swap sv heads, at least logically */
565static void 719static void
566swap_svs (pTHX_ Coro__State c) 720swap_svs (pTHX_ Coro__State c)
567{ 721{
568 int i; 722 int i;
569 723
570 for (i = 0; i <= AvFILLp (c->swap_sv); ) 724 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
571 { 725 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
572 SV *a = AvARRAY (c->swap_sv)[i++];
573 SV *b = AvARRAY (c->swap_sv)[i++];
574
575 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
576 SV tmp;
577
578 /* swap sv_any */
579 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
580
581 /* swap sv_flags */
582 SvFLAGS (&tmp) = SvFLAGS (a);
583 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
584 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
585
586#if PERL_VERSION_ATLEAST (5,10,0)
587 /* perl 5.10 complicates this _quite_ a bit, but it also is
588 * is much faster, so no quarrels here. alternatively, we could
589 * sv_upgrade to avoid this.
590 */
591 {
592 /* swap sv_u */
593 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
594
595 /* if SvANY points to the head, we need to adjust the pointers,
596 * as the pointer for a still points to b, and maybe vice versa.
597 */
598 #define svany_in_head(type) \
599 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
600
601 if (svany_in_head (SvTYPE (a)))
602 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
603
604 if (svany_in_head (SvTYPE (b)))
605 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
606 }
607#endif
608 }
609} 726}
610 727
611#define SWAP_SVS(coro) \ 728#define SWAP_SVS(coro) \
612 if (expect_false ((coro)->swap_sv)) \ 729 if (ecb_expect_false ((coro)->swap_sv)) \
613 swap_svs (aTHX_ (coro)) 730 swap_svs (aTHX_ (coro))
614 731
615static void 732static void
616on_enterleave_call (pTHX_ SV *cb); 733on_enterleave_call (pTHX_ SV *cb);
617 734
… …
621 perl_slots *slot = c->slot; 738 perl_slots *slot = c->slot;
622 c->slot = 0; 739 c->slot = 0;
623 740
624 PL_mainstack = c->mainstack; 741 PL_mainstack = c->mainstack;
625 742
626 GvSV (PL_defgv) = slot->defsv; 743#if CORO_JIT
627 GvAV (PL_defgv) = slot->defav; 744 load_perl_slots (slot);
628 GvSV (PL_errgv) = slot->errsv; 745#else
629 GvSV (irsgv) = slot->irsgv;
630 GvHV (PL_hintgv) = slot->hinthv;
631
632 #define VAR(name,type) PL_ ## name = slot->name; 746 #define VARx(name,expr,type) expr = slot->name;
633 # include "state.h" 747 #include "state.h"
634 #undef VAR 748#endif
635 749
636 { 750 {
637 dSP; 751 dSP;
638 752
639 CV *cv; 753 CV *cv;
640 754
641 /* now do the ugly restore mess */ 755 /* now do the ugly restore mess */
642 while (expect_true (cv = (CV *)POPs)) 756 while (ecb_expect_true (cv = (CV *)POPs))
643 { 757 {
644 put_padlist (aTHX_ cv); /* mark this padlist as available */ 758 put_padlist (aTHX_ cv); /* mark this padlist as available */
645 CvDEPTH (cv) = PTR2IV (POPs); 759 CvDEPTH (cv) = PTR2IV (POPs);
646 CvPADLIST (cv) = (AV *)POPs; 760 CvPADLIST (cv) = (PADLIST *)POPs;
647 } 761 }
648 762
649 PUTBACK; 763 PUTBACK;
650 } 764 }
651 765
652 slf_frame = c->slf_frame; 766 slf_frame = c->slf_frame;
653 CORO_THROW = c->except; 767 CORO_THROW = c->except;
654 768
655 if (expect_false (enable_times)) 769 if (ecb_expect_false (enable_times))
656 { 770 {
657 if (expect_false (!times_valid)) 771 if (ecb_expect_false (!times_valid))
658 coro_times_update (); 772 coro_times_update ();
659 773
660 coro_times_sub (c); 774 coro_times_sub (c);
661 } 775 }
662 776
663 if (expect_false (c->on_enter)) 777 if (ecb_expect_false (c->on_enter))
664 { 778 {
665 int i; 779 int i;
666 780
667 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 781 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
668 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 782 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
… …
674static void 788static void
675save_perl (pTHX_ Coro__State c) 789save_perl (pTHX_ Coro__State c)
676{ 790{
677 SWAP_SVS (c); 791 SWAP_SVS (c);
678 792
679 if (expect_false (c->on_leave)) 793 if (ecb_expect_false (c->on_leave))
680 { 794 {
681 int i; 795 int i;
682 796
683 for (i = AvFILLp (c->on_leave); i >= 0; --i) 797 for (i = AvFILLp (c->on_leave); i >= 0; --i)
684 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 798 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
685 } 799 }
686 800
687 times_valid = 0; 801 times_valid = 0;
688 802
689 if (expect_false (enable_times)) 803 if (ecb_expect_false (enable_times))
690 { 804 {
691 coro_times_update (); times_valid = 1; 805 coro_times_update (); times_valid = 1;
692 coro_times_add (c); 806 coro_times_add (c);
693 } 807 }
694 808
… …
708 822
709 XPUSHs (Nullsv); 823 XPUSHs (Nullsv);
710 /* this loop was inspired by pp_caller */ 824 /* this loop was inspired by pp_caller */
711 for (;;) 825 for (;;)
712 { 826 {
713 while (expect_true (cxix >= 0)) 827 while (ecb_expect_true (cxix >= 0))
714 { 828 {
715 PERL_CONTEXT *cx = &ccstk[cxix--]; 829 PERL_CONTEXT *cx = &ccstk[cxix--];
716 830
717 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 831 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
718 { 832 {
719 CV *cv = cx->blk_sub.cv; 833 CV *cv = cx->blk_sub.cv;
720 834
721 if (expect_true (CvDEPTH (cv))) 835 if (ecb_expect_true (CvDEPTH (cv)))
722 { 836 {
723 EXTEND (SP, 3); 837 EXTEND (SP, 3);
724 PUSHs ((SV *)CvPADLIST (cv)); 838 PUSHs ((SV *)CvPADLIST (cv));
725 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 839 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
726 PUSHs ((SV *)cv); 840 PUSHs ((SV *)cv);
… …
729 get_padlist (aTHX_ cv); 843 get_padlist (aTHX_ cv);
730 } 844 }
731 } 845 }
732 } 846 }
733 847
734 if (expect_true (top_si->si_type == PERLSI_MAIN)) 848 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
735 break; 849 break;
736 850
737 top_si = top_si->si_prev; 851 top_si = top_si->si_prev;
738 ccstk = top_si->si_cxstack; 852 ccstk = top_si->si_cxstack;
739 cxix = top_si->si_cxix; 853 cxix = top_si->si_cxix;
… …
741 855
742 PUTBACK; 856 PUTBACK;
743 } 857 }
744 858
745 /* allocate some space on the context stack for our purposes */ 859 /* allocate some space on the context stack for our purposes */
746 /* we manually unroll here, as usually 2 slots is enough */ 860 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
747 if (SLOT_COUNT >= 1) CXINC;
748 if (SLOT_COUNT >= 2) CXINC;
749 if (SLOT_COUNT >= 3) CXINC;
750 { 861 {
751 unsigned int i; 862 unsigned int i;
863
752 for (i = 3; i < SLOT_COUNT; ++i) 864 for (i = 0; i < SLOT_COUNT; ++i)
753 CXINC; 865 CXINC;
754 } 866
755 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 867 cxstack_ix -= SLOT_COUNT; /* undo allocation */
868 }
756 869
757 c->mainstack = PL_mainstack; 870 c->mainstack = PL_mainstack;
758 871
759 { 872 {
760 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 873 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
761 874
762 slot->defav = GvAV (PL_defgv); 875#if CORO_JIT
763 slot->defsv = DEFSV; 876 save_perl_slots (slot);
764 slot->errsv = ERRSV; 877#else
765 slot->irsgv = GvSV (irsgv);
766 slot->hinthv = GvHV (PL_hintgv);
767
768 #define VAR(name,type) slot->name = PL_ ## name; 878 #define VARx(name,expr,type) slot->name = expr;
769 # include "state.h" 879 #include "state.h"
770 #undef VAR 880#endif
771 } 881 }
772} 882}
773 883
774/* 884/*
775 * allocate various perl stacks. This is almost an exact copy 885 * allocate various perl stacks. This is almost an exact copy
… …
781# define coro_init_stacks(thx) init_stacks () 891# define coro_init_stacks(thx) init_stacks ()
782#else 892#else
783static void 893static void
784coro_init_stacks (pTHX) 894coro_init_stacks (pTHX)
785{ 895{
786 PL_curstackinfo = new_stackinfo(32, 8); 896 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
787 PL_curstackinfo->si_type = PERLSI_MAIN; 897 PL_curstackinfo->si_type = PERLSI_MAIN;
788 PL_curstack = PL_curstackinfo->si_stack; 898 PL_curstack = PL_curstackinfo->si_stack;
789 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 899 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
790 900
791 PL_stack_base = AvARRAY(PL_curstack); 901 PL_stack_base = AvARRAY(PL_curstack);
… …
806#endif 916#endif
807 917
808 New(54,PL_scopestack,8,I32); 918 New(54,PL_scopestack,8,I32);
809 PL_scopestack_ix = 0; 919 PL_scopestack_ix = 0;
810 PL_scopestack_max = 8; 920 PL_scopestack_max = 8;
921#if HAS_SCOPESTACK_NAME
922 New(54,PL_scopestack_name,8,const char*);
923#endif
811 924
812 New(54,PL_savestack,24,ANY); 925 New(54,PL_savestack,24,ANY);
813 PL_savestack_ix = 0; 926 PL_savestack_ix = 0;
814 PL_savestack_max = 24; 927 PL_savestack_max = 24;
815 928
… …
843 } 956 }
844 957
845 Safefree (PL_tmps_stack); 958 Safefree (PL_tmps_stack);
846 Safefree (PL_markstack); 959 Safefree (PL_markstack);
847 Safefree (PL_scopestack); 960 Safefree (PL_scopestack);
961#if HAS_SCOPESTACK_NAME
962 Safefree (PL_scopestack_name);
963#endif
848 Safefree (PL_savestack); 964 Safefree (PL_savestack);
849#if !PERL_VERSION_ATLEAST (5,10,0) 965#if !PERL_VERSION_ATLEAST (5,10,0)
850 Safefree (PL_retstack); 966 Safefree (PL_retstack);
851#endif 967#endif
852} 968}
… …
898#endif 1014#endif
899 1015
900/* 1016/*
901 * This overrides the default magic get method of %SIG elements. 1017 * This overrides the default magic get method of %SIG elements.
902 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1018 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
903 * and instead of trying to save and restore the hash elements, we just provide 1019 * and instead of trying to save and restore the hash elements (extremely slow),
904 * readback here. 1020 * we just provide our own readback here.
905 */ 1021 */
906static int 1022static int ecb_cold
907coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1023coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
908{ 1024{
909 const char *s = MgPV_nolen_const (mg); 1025 const char *s = MgPV_nolen_const (mg);
910 1026
911 if (*s == '_') 1027 if (*s == '_')
912 { 1028 {
913 SV **svp = 0; 1029 SV **svp = 0;
914 1030
915 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1031 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
916 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1032 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
917 1033
918 if (svp) 1034 if (svp)
919 { 1035 {
920 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1036 SV *ssv;
1037
1038 if (!*svp)
1039 ssv = &PL_sv_undef;
1040 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1041 ssv = sv_2mortal (newRV_inc (*svp));
1042 else
1043 ssv = *svp;
1044
1045 sv_setsv (sv, ssv);
921 return 0; 1046 return 0;
922 } 1047 }
923 } 1048 }
924 1049
925 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1050 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
926} 1051}
927 1052
928static int 1053static int ecb_cold
929coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1054coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
930{ 1055{
931 const char *s = MgPV_nolen_const (mg); 1056 const char *s = MgPV_nolen_const (mg);
932 1057
933 if (*s == '_') 1058 if (*s == '_')
… …
947 } 1072 }
948 1073
949 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1074 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
950} 1075}
951 1076
952static int 1077static int ecb_cold
953coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1078coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
954{ 1079{
955 const char *s = MgPV_nolen_const (mg); 1080 const char *s = MgPV_nolen_const (mg);
956 1081
957 if (*s == '_') 1082 if (*s == '_')
… …
992 return 1; 1117 return 1;
993} 1118}
994 1119
995static UNOP init_perl_op; 1120static UNOP init_perl_op;
996 1121
997static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1122ecb_noinline static void /* noinline to keep it out of the transfer fast path */
998init_perl (pTHX_ struct coro *coro) 1123init_perl (pTHX_ struct coro *coro)
999{ 1124{
1000 /* 1125 /*
1001 * emulate part of the perl startup here. 1126 * emulate part of the perl startup here.
1002 */ 1127 */
… …
1010 PL_comppad_name_fill = 0; 1135 PL_comppad_name_fill = 0;
1011 PL_comppad_name_floor = 0; 1136 PL_comppad_name_floor = 0;
1012 PL_curpm = 0; 1137 PL_curpm = 0;
1013 PL_curpad = 0; 1138 PL_curpad = 0;
1014 PL_localizing = 0; 1139 PL_localizing = 0;
1015 PL_dirty = 0;
1016 PL_restartop = 0; 1140 PL_restartop = 0;
1017#if PERL_VERSION_ATLEAST (5,10,0) 1141#if PERL_VERSION_ATLEAST (5,10,0)
1018 PL_parser = 0; 1142 PL_parser = 0;
1019#endif 1143#endif
1020 PL_hints = 0; 1144 PL_hints = 0;
1021 1145
1022 /* recreate the die/warn hooks */ 1146 /* recreate the die/warn hooks */
1023 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1147 PL_diehook = SvREFCNT_inc (rv_diehook);
1024 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1148 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1025 1149
1026 GvSV (PL_defgv) = newSV (0); 1150 GvSV (PL_defgv) = newSV (0);
1027 GvAV (PL_defgv) = coro->args; coro->args = 0; 1151 GvAV (PL_defgv) = coro->args; coro->args = 0;
1028 GvSV (PL_errgv) = newSV (0); 1152 GvSV (PL_errgv) = newSV (0);
1029 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1153 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1030 GvHV (PL_hintgv) = 0; 1154 GvHV (PL_hintgv) = newHV ();
1155#if PERL_VERSION_ATLEAST (5,10,0)
1156 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1157#endif
1031 PL_rs = newSVsv (GvSV (irsgv)); 1158 PL_rs = newSVsv (GvSV (irsgv));
1032 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1159 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1033 1160
1034 { 1161 {
1035 dSP; 1162 dSP;
… …
1050 /* this newly created coroutine might be run on an existing cctx which most 1177 /* this newly created coroutine might be run on an existing cctx which most
1051 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1178 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
1052 */ 1179 */
1053 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1180 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
1054 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1181 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1182 slf_frame.destroy = 0;
1055 1183
1056 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1184 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
1057 init_perl_op.op_next = PL_op; 1185 init_perl_op.op_next = PL_op;
1058 init_perl_op.op_type = OP_ENTERSUB; 1186 init_perl_op.op_type = OP_ENTERSUB;
1059 init_perl_op.op_ppaddr = pp_slf; 1187 init_perl_op.op_ppaddr = pp_slf;
… …
1064 /* copy throw, in case it was set before init_perl */ 1192 /* copy throw, in case it was set before init_perl */
1065 CORO_THROW = coro->except; 1193 CORO_THROW = coro->except;
1066 1194
1067 SWAP_SVS (coro); 1195 SWAP_SVS (coro);
1068 1196
1069 if (expect_false (enable_times)) 1197 if (ecb_expect_false (enable_times))
1070 { 1198 {
1071 coro_times_update (); 1199 coro_times_update ();
1072 coro_times_sub (coro); 1200 coro_times_sub (coro);
1073 } 1201 }
1074} 1202}
… …
1098destroy_perl (pTHX_ struct coro *coro) 1226destroy_perl (pTHX_ struct coro *coro)
1099{ 1227{
1100 SV *svf [9]; 1228 SV *svf [9];
1101 1229
1102 { 1230 {
1231 SV *old_current = SvRV (coro_current);
1103 struct coro *current = SvSTATE_current; 1232 struct coro *current = SvSTATE (old_current);
1104 1233
1105 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1234 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1106 1235
1107 save_perl (aTHX_ current); 1236 save_perl (aTHX_ current);
1237
1238 /* this will cause transfer_check to croak on block*/
1239 SvRV_set (coro_current, (SV *)coro->hv);
1240
1108 load_perl (aTHX_ coro); 1241 load_perl (aTHX_ coro);
1109 1242
1110 coro_unwind_stacks (aTHX); 1243 coro_unwind_stacks (aTHX);
1111 coro_destruct_stacks (aTHX);
1112 1244
1113 /* restore swapped sv's */ 1245 /* restore swapped sv's */
1114 SWAP_SVS (coro); 1246 SWAP_SVS (coro);
1115 1247
1248 coro_destruct_stacks (aTHX);
1249
1116 // now save some sv's to be free'd later 1250 /* now save some sv's to be free'd later */
1117 svf [0] = GvSV (PL_defgv); 1251 svf [0] = GvSV (PL_defgv);
1118 svf [1] = (SV *)GvAV (PL_defgv); 1252 svf [1] = (SV *)GvAV (PL_defgv);
1119 svf [2] = GvSV (PL_errgv); 1253 svf [2] = GvSV (PL_errgv);
1120 svf [3] = (SV *)PL_defoutgv; 1254 svf [3] = (SV *)PL_defoutgv;
1121 svf [4] = PL_rs; 1255 svf [4] = PL_rs;
… …
1123 svf [6] = (SV *)GvHV (PL_hintgv); 1257 svf [6] = (SV *)GvHV (PL_hintgv);
1124 svf [7] = PL_diehook; 1258 svf [7] = PL_diehook;
1125 svf [8] = PL_warnhook; 1259 svf [8] = PL_warnhook;
1126 assert (9 == sizeof (svf) / sizeof (*svf)); 1260 assert (9 == sizeof (svf) / sizeof (*svf));
1127 1261
1262 SvRV_set (coro_current, old_current);
1263
1128 load_perl (aTHX_ current); 1264 load_perl (aTHX_ current);
1129 } 1265 }
1130 1266
1131 { 1267 {
1132 unsigned int i; 1268 unsigned int i;
… …
1139 SvREFCNT_dec (coro->invoke_cb); 1275 SvREFCNT_dec (coro->invoke_cb);
1140 SvREFCNT_dec (coro->invoke_av); 1276 SvREFCNT_dec (coro->invoke_av);
1141 } 1277 }
1142} 1278}
1143 1279
1144INLINE void 1280ecb_inline void
1145free_coro_mortal (pTHX) 1281free_coro_mortal (pTHX)
1146{ 1282{
1147 if (expect_true (coro_mortal)) 1283 if (ecb_expect_true (coro_mortal))
1148 { 1284 {
1149 SvREFCNT_dec (coro_mortal); 1285 SvREFCNT_dec ((SV *)coro_mortal);
1150 coro_mortal = 0; 1286 coro_mortal = 0;
1151 } 1287 }
1152} 1288}
1153 1289
1154static int 1290static int
… …
1208 1344
1209 if (PL_curcop != &PL_compiling) 1345 if (PL_curcop != &PL_compiling)
1210 { 1346 {
1211 SV **cb; 1347 SV **cb;
1212 1348
1213 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) 1349 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1214 { 1350 {
1215 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1351 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1216 1352
1217 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1353 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1218 { 1354 {
… …
1287 1423
1288 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1424 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1289} 1425}
1290 1426
1291/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1427/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1292static void NOINLINE 1428static void ecb_noinline
1293cctx_prepare (pTHX) 1429cctx_prepare (pTHX)
1294{ 1430{
1295 PL_top_env = &PL_start_env; 1431 PL_top_env = &PL_start_env;
1296 1432
1297 if (cctx_current->flags & CC_TRACE) 1433 if (cctx_current->flags & CC_TRACE)
… …
1308 slf_frame.prepare = slf_prepare_set_stacklevel; 1444 slf_frame.prepare = slf_prepare_set_stacklevel;
1309 slf_frame.check = slf_check_set_stacklevel; 1445 slf_frame.check = slf_check_set_stacklevel;
1310} 1446}
1311 1447
1312/* the tail of transfer: execute stuff we can only do after a transfer */ 1448/* the tail of transfer: execute stuff we can only do after a transfer */
1313INLINE void 1449ecb_inline void
1314transfer_tail (pTHX) 1450transfer_tail (pTHX)
1315{ 1451{
1316 free_coro_mortal (aTHX); 1452 free_coro_mortal (aTHX);
1453}
1454
1455/* try to exit the same way perl's main function would do */
1456/* we do not bother resetting the environment or other things *7
1457/* that are not, uhm, essential */
1458/* this obviously also doesn't work when perl is embedded */
1459static void ecb_noinline ecb_cold
1460perlish_exit (pTHX)
1461{
1462 int exitstatus = perl_destruct (PL_curinterp);
1463 perl_free (PL_curinterp);
1464 exit (exitstatus);
1317} 1465}
1318 1466
1319/* 1467/*
1320 * this is a _very_ stripped down perl interpreter ;) 1468 * this is a _very_ stripped down perl interpreter ;)
1321 */ 1469 */
… …
1350 */ 1498 */
1351 1499
1352 /* 1500 /*
1353 * If perl-run returns we assume exit() was being called or the coro 1501 * If perl-run returns we assume exit() was being called or the coro
1354 * fell off the end, which seems to be the only valid (non-bug) 1502 * fell off the end, which seems to be the only valid (non-bug)
1355 * reason for perl_run to return. We try to exit by jumping to the 1503 * reason for perl_run to return. We try to mimic whatever perl is normally
1356 * bootstrap-time "top" top_env, as we cannot restore the "main" 1504 * doing in that case. YMMV.
1357 * coroutine as Coro has no such concept.
1358 * This actually isn't valid with the pthread backend, but OSes requiring
1359 * that backend are too broken to do it in a standards-compliant way.
1360 */ 1505 */
1361 PL_top_env = main_top_env; 1506 perlish_exit (aTHX);
1362 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1363 } 1507 }
1364} 1508}
1365 1509
1366static coro_cctx * 1510static coro_cctx *
1367cctx_new () 1511cctx_new (void)
1368{ 1512{
1369 coro_cctx *cctx; 1513 coro_cctx *cctx;
1370 1514
1371 ++cctx_count; 1515 ++cctx_count;
1372 New (0, cctx, 1, coro_cctx); 1516 New (0, cctx, 1, coro_cctx);
… …
1378 return cctx; 1522 return cctx;
1379} 1523}
1380 1524
1381/* create a new cctx only suitable as source */ 1525/* create a new cctx only suitable as source */
1382static coro_cctx * 1526static coro_cctx *
1383cctx_new_empty () 1527cctx_new_empty (void)
1384{ 1528{
1385 coro_cctx *cctx = cctx_new (); 1529 coro_cctx *cctx = cctx_new ();
1386 1530
1387 cctx->sptr = 0; 1531 cctx->stack.sptr = 0;
1388 coro_create (&cctx->cctx, 0, 0, 0, 0); 1532 coro_create (&cctx->cctx, 0, 0, 0, 0);
1389 1533
1390 return cctx; 1534 return cctx;
1391} 1535}
1392 1536
1393/* create a new cctx suitable as destination/running a perl interpreter */ 1537/* create a new cctx suitable as destination/running a perl interpreter */
1394static coro_cctx * 1538static coro_cctx *
1395cctx_new_run () 1539cctx_new_run (void)
1396{ 1540{
1397 coro_cctx *cctx = cctx_new (); 1541 coro_cctx *cctx = cctx_new ();
1398 void *stack_start;
1399 size_t stack_size;
1400 1542
1401#if HAVE_MMAP 1543 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1402 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1403 /* mmap supposedly does allocate-on-write for us */
1404 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1405
1406 if (cctx->sptr != (void *)-1)
1407 {
1408 #if CORO_STACKGUARD
1409 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1410 #endif
1411 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1412 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1413 cctx->flags |= CC_MAPPED;
1414 } 1544 {
1415 else
1416#endif
1417 {
1418 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1419 New (0, cctx->sptr, cctx_stacksize, long);
1420
1421 if (!cctx->sptr)
1422 {
1423 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1545 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1424 _exit (EXIT_FAILURE); 1546 _exit (EXIT_FAILURE);
1425 }
1426
1427 stack_start = cctx->sptr;
1428 stack_size = cctx->ssize;
1429 } 1547 }
1430 1548
1431 #if CORO_USE_VALGRIND
1432 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1433 #endif
1434
1435 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1549 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1436 1550
1437 return cctx; 1551 return cctx;
1438} 1552}
1439 1553
1440static void 1554static void
1441cctx_destroy (coro_cctx *cctx) 1555cctx_destroy (coro_cctx *cctx)
1442{ 1556{
1443 if (!cctx) 1557 if (!cctx)
1444 return; 1558 return;
1445 1559
1446 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1560 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1447 1561
1448 --cctx_count; 1562 --cctx_count;
1449 coro_destroy (&cctx->cctx); 1563 coro_destroy (&cctx->cctx);
1450 1564
1451 /* coro_transfer creates new, empty cctx's */ 1565 coro_stack_free (&cctx->stack);
1452 if (cctx->sptr)
1453 {
1454 #if CORO_USE_VALGRIND
1455 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1456 #endif
1457
1458#if HAVE_MMAP
1459 if (cctx->flags & CC_MAPPED)
1460 munmap (cctx->sptr, cctx->ssize);
1461 else
1462#endif
1463 Safefree (cctx->sptr);
1464 }
1465 1566
1466 Safefree (cctx); 1567 Safefree (cctx);
1467} 1568}
1468 1569
1469/* wether this cctx should be destructed */ 1570/* wether this cctx should be destructed */
1470#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1571#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1471 1572
1472static coro_cctx * 1573static coro_cctx *
1473cctx_get (pTHX) 1574cctx_get (pTHX)
1474{ 1575{
1475 while (expect_true (cctx_first)) 1576 while (ecb_expect_true (cctx_first))
1476 { 1577 {
1477 coro_cctx *cctx = cctx_first; 1578 coro_cctx *cctx = cctx_first;
1478 cctx_first = cctx->next; 1579 cctx_first = cctx->next;
1479 --cctx_idle; 1580 --cctx_idle;
1480 1581
1481 if (expect_true (!CCTX_EXPIRED (cctx))) 1582 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1482 return cctx; 1583 return cctx;
1483 1584
1484 cctx_destroy (cctx); 1585 cctx_destroy (cctx);
1485 } 1586 }
1486 1587
… …
1488} 1589}
1489 1590
1490static void 1591static void
1491cctx_put (coro_cctx *cctx) 1592cctx_put (coro_cctx *cctx)
1492{ 1593{
1493 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1594 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1494 1595
1495 /* free another cctx if overlimit */ 1596 /* free another cctx if overlimit */
1496 if (expect_false (cctx_idle >= cctx_max_idle)) 1597 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1497 { 1598 {
1498 coro_cctx *first = cctx_first; 1599 coro_cctx *first = cctx_first;
1499 cctx_first = first->next; 1600 cctx_first = first->next;
1500 --cctx_idle; 1601 --cctx_idle;
1501 1602
… …
1512static void 1613static void
1513transfer_check (pTHX_ struct coro *prev, struct coro *next) 1614transfer_check (pTHX_ struct coro *prev, struct coro *next)
1514{ 1615{
1515 /* TODO: throwing up here is considered harmful */ 1616 /* TODO: throwing up here is considered harmful */
1516 1617
1517 if (expect_true (prev != next)) 1618 if (ecb_expect_true (prev != next))
1518 { 1619 {
1519 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1620 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1520 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1621 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1521 1622
1522 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1623 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1523 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1624 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1524 1625
1525#if !PERL_VERSION_ATLEAST (5,10,0) 1626#if !PERL_VERSION_ATLEAST (5,10,0)
1526 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1627 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1527 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1628 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1528#endif 1629#endif
1529 } 1630 }
1530} 1631}
1531 1632
1532/* always use the TRANSFER macro */ 1633/* always use the TRANSFER macro */
1533static void NOINLINE /* noinline so we have a fixed stackframe */ 1634static void ecb_noinline /* noinline so we have a fixed stackframe */
1534transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1635transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1535{ 1636{
1536 dSTACKLEVEL; 1637 dSTACKLEVEL;
1537 1638
1538 /* sometimes transfer is only called to set idle_sp */ 1639 /* sometimes transfer is only called to set idle_sp */
1539 if (expect_false (!prev)) 1640 if (ecb_expect_false (!prev))
1540 { 1641 {
1541 cctx_current->idle_sp = STACKLEVEL; 1642 cctx_current->idle_sp = STACKLEVEL;
1542 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1643 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1543 } 1644 }
1544 else if (expect_true (prev != next)) 1645 else if (ecb_expect_true (prev != next))
1545 { 1646 {
1546 coro_cctx *cctx_prev; 1647 coro_cctx *cctx_prev;
1547 1648
1548 if (expect_false (prev->flags & CF_NEW)) 1649 if (ecb_expect_false (prev->flags & CF_NEW))
1549 { 1650 {
1550 /* create a new empty/source context */ 1651 /* create a new empty/source context */
1551 prev->flags &= ~CF_NEW; 1652 prev->flags &= ~CF_NEW;
1552 prev->flags |= CF_RUNNING; 1653 prev->flags |= CF_RUNNING;
1553 } 1654 }
… …
1556 next->flags |= CF_RUNNING; 1657 next->flags |= CF_RUNNING;
1557 1658
1558 /* first get rid of the old state */ 1659 /* first get rid of the old state */
1559 save_perl (aTHX_ prev); 1660 save_perl (aTHX_ prev);
1560 1661
1561 if (expect_false (next->flags & CF_NEW)) 1662 if (ecb_expect_false (next->flags & CF_NEW))
1562 { 1663 {
1563 /* need to start coroutine */ 1664 /* need to start coroutine */
1564 next->flags &= ~CF_NEW; 1665 next->flags &= ~CF_NEW;
1565 /* setup coroutine call */ 1666 /* setup coroutine call */
1566 init_perl (aTHX_ next); 1667 init_perl (aTHX_ next);
1567 } 1668 }
1568 else 1669 else
1569 load_perl (aTHX_ next); 1670 load_perl (aTHX_ next);
1570 1671
1571 /* possibly untie and reuse the cctx */ 1672 /* possibly untie and reuse the cctx */
1572 if (expect_true ( 1673 if (ecb_expect_true (
1573 cctx_current->idle_sp == STACKLEVEL 1674 cctx_current->idle_sp == STACKLEVEL
1574 && !(cctx_current->flags & CC_TRACE) 1675 && !(cctx_current->flags & CC_TRACE)
1575 && !force_cctx 1676 && !force_cctx
1576 )) 1677 ))
1577 { 1678 {
1578 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1679 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1579 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1680 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1580 1681
1581 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1682 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1582 /* without this the next cctx_get might destroy the running cctx while still in use */ 1683 /* without this the next cctx_get might destroy the running cctx while still in use */
1583 if (expect_false (CCTX_EXPIRED (cctx_current))) 1684 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1584 if (expect_true (!next->cctx)) 1685 if (ecb_expect_true (!next->cctx))
1585 next->cctx = cctx_get (aTHX); 1686 next->cctx = cctx_get (aTHX);
1586 1687
1587 cctx_put (cctx_current); 1688 cctx_put (cctx_current);
1588 } 1689 }
1589 else 1690 else
1590 prev->cctx = cctx_current; 1691 prev->cctx = cctx_current;
1591 1692
1592 ++next->usecount; 1693 ++next->usecount;
1593 1694
1594 cctx_prev = cctx_current; 1695 cctx_prev = cctx_current;
1595 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1696 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1596 1697
1597 next->cctx = 0; 1698 next->cctx = 0;
1598 1699
1599 if (expect_false (cctx_prev != cctx_current)) 1700 if (ecb_expect_false (cctx_prev != cctx_current))
1600 { 1701 {
1601 cctx_prev->top_env = PL_top_env; 1702 cctx_prev->top_env = PL_top_env;
1602 PL_top_env = cctx_current->top_env; 1703 PL_top_env = cctx_current->top_env;
1603 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1704 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1604 } 1705 }
… …
1610#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1711#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1611#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1712#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1612 1713
1613/** high level stuff ********************************************************/ 1714/** high level stuff ********************************************************/
1614 1715
1716/* this function is actually Coro, not Coro::State, but we call it from here */
1717/* because it is convenient - but it hasn't been declared yet for that reason */
1615static int 1718static void
1719coro_call_on_destroy (pTHX_ struct coro *coro);
1720
1721static void
1616coro_state_destroy (pTHX_ struct coro *coro) 1722coro_state_destroy (pTHX_ struct coro *coro)
1617{ 1723{
1618 if (coro->flags & CF_DESTROYED) 1724 if (coro->flags & CF_ZOMBIE)
1619 return 0; 1725 return;
1620 1726
1621 if (coro->on_destroy && !PL_dirty)
1622 coro->on_destroy (aTHX_ coro); 1727 slf_destroy (aTHX_ coro);
1623 1728
1624 coro->flags |= CF_DESTROYED; 1729 coro->flags |= CF_ZOMBIE;
1625 1730
1626 if (coro->flags & CF_READY) 1731 if (coro->flags & CF_READY)
1627 { 1732 {
1628 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1733 /* reduce nready, as destroying a ready coro effectively unreadies it */
1629 /* alternative: look through all ready queues and remove the coro */ 1734 /* alternative: look through all ready queues and remove the coro */
1630 --coro_nready; 1735 --coro_nready;
1631 } 1736 }
1632 else 1737 else
1633 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1738 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1739
1740 if (coro->next) coro->next->prev = coro->prev;
1741 if (coro->prev) coro->prev->next = coro->next;
1742 if (coro == coro_first) coro_first = coro->next;
1634 1743
1635 if (coro->mainstack 1744 if (coro->mainstack
1636 && coro->mainstack != main_mainstack 1745 && coro->mainstack != main_mainstack
1637 && coro->slot 1746 && coro->slot
1638 && !PL_dirty) 1747 && !PL_dirty)
1639 destroy_perl (aTHX_ coro); 1748 destroy_perl (aTHX_ coro);
1640 1749
1641 if (coro->next) coro->next->prev = coro->prev;
1642 if (coro->prev) coro->prev->next = coro->next;
1643 if (coro == coro_first) coro_first = coro->next;
1644
1645 cctx_destroy (coro->cctx); 1750 cctx_destroy (coro->cctx);
1646 SvREFCNT_dec (coro->startcv); 1751 SvREFCNT_dec (coro->startcv);
1647 SvREFCNT_dec (coro->args); 1752 SvREFCNT_dec (coro->args);
1648 SvREFCNT_dec (coro->swap_sv); 1753 SvREFCNT_dec (coro->swap_sv);
1649 SvREFCNT_dec (CORO_THROW); 1754 SvREFCNT_dec (CORO_THROW);
1650 1755
1651 return 1; 1756 coro_call_on_destroy (aTHX_ coro);
1757
1758 /* more destruction mayhem in coro_state_free */
1652} 1759}
1653 1760
1654static int 1761static int
1655coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1762coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1656{ 1763{
1657 struct coro *coro = (struct coro *)mg->mg_ptr; 1764 struct coro *coro = (struct coro *)mg->mg_ptr;
1658 mg->mg_ptr = 0; 1765 mg->mg_ptr = 0;
1659 1766
1660 coro->hv = 0;
1661
1662 if (--coro->refcnt < 0)
1663 {
1664 coro_state_destroy (aTHX_ coro); 1767 coro_state_destroy (aTHX_ coro);
1768 SvREFCNT_dec (coro->on_destroy);
1769 SvREFCNT_dec (coro->status);
1770
1665 Safefree (coro); 1771 Safefree (coro);
1666 }
1667 1772
1668 return 0; 1773 return 0;
1669} 1774}
1670 1775
1671static int 1776static int ecb_cold
1672coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1777coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1673{ 1778{
1674 struct coro *coro = (struct coro *)mg->mg_ptr; 1779 /* called when perl clones the current process the slow way (windows process emulation) */
1675 1780 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1676 ++coro->refcnt; 1781 mg->mg_ptr = 0;
1782 mg->mg_virtual = 0;
1677 1783
1678 return 0; 1784 return 0;
1679} 1785}
1680 1786
1681static MGVTBL coro_state_vtbl = { 1787static MGVTBL coro_state_vtbl = {
… …
1706 TRANSFER (ta, 1); 1812 TRANSFER (ta, 1);
1707} 1813}
1708 1814
1709/** Coro ********************************************************************/ 1815/** Coro ********************************************************************/
1710 1816
1711INLINE void 1817ecb_inline void
1712coro_enq (pTHX_ struct coro *coro) 1818coro_enq (pTHX_ struct coro *coro)
1713{ 1819{
1714 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1820 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1715 1821
1716 SvREFCNT_inc_NN (coro->hv); 1822 SvREFCNT_inc_NN (coro->hv);
… …
1718 coro->next_ready = 0; 1824 coro->next_ready = 0;
1719 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1825 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1720 ready [1] = coro; 1826 ready [1] = coro;
1721} 1827}
1722 1828
1723INLINE struct coro * 1829ecb_inline struct coro *
1724coro_deq (pTHX) 1830coro_deq (pTHX)
1725{ 1831{
1726 int prio; 1832 int prio;
1727 1833
1728 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1834 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1781{ 1887{
1782 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1888 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1783} 1889}
1784 1890
1785/* expects to own a reference to next->hv */ 1891/* expects to own a reference to next->hv */
1786INLINE void 1892ecb_inline void
1787prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1893prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1788{ 1894{
1789 SV *prev_sv = SvRV (coro_current); 1895 SV *prev_sv = SvRV (coro_current);
1790 1896
1791 ta->prev = SvSTATE_hv (prev_sv); 1897 ta->prev = SvSTATE_hv (prev_sv);
… …
1804{ 1910{
1805 for (;;) 1911 for (;;)
1806 { 1912 {
1807 struct coro *next = coro_deq (aTHX); 1913 struct coro *next = coro_deq (aTHX);
1808 1914
1809 if (expect_true (next)) 1915 if (ecb_expect_true (next))
1810 { 1916 {
1811 /* cannot transfer to destroyed coros, skip and look for next */ 1917 /* cannot transfer to destroyed coros, skip and look for next */
1812 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1918 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1813 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1919 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1814 else 1920 else
1815 { 1921 {
1816 next->flags &= ~CF_READY; 1922 next->flags &= ~CF_READY;
1817 --coro_nready; 1923 --coro_nready;
… …
1825 /* nothing to schedule: call the idle handler */ 1931 /* nothing to schedule: call the idle handler */
1826 if (SvROK (sv_idle) 1932 if (SvROK (sv_idle)
1827 && SvOBJECT (SvRV (sv_idle))) 1933 && SvOBJECT (SvRV (sv_idle)))
1828 { 1934 {
1829 if (SvRV (sv_idle) == SvRV (coro_current)) 1935 if (SvRV (sv_idle) == SvRV (coro_current))
1936 {
1937 require_pv ("Carp");
1938
1939 {
1940 dSP;
1941
1942 ENTER;
1943 SAVETMPS;
1944
1945 PUSHMARK (SP);
1830 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); 1946 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1947 PUTBACK;
1948 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1949
1950 FREETMPS;
1951 LEAVE;
1952 }
1953 }
1831 1954
1832 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1955 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1833 api_ready (aTHX_ SvRV (sv_idle)); 1956 api_ready (aTHX_ SvRV (sv_idle));
1834 --coro_nready; 1957 --coro_nready;
1835 } 1958 }
… …
1850 } 1973 }
1851 } 1974 }
1852 } 1975 }
1853} 1976}
1854 1977
1855INLINE void 1978ecb_inline void
1856prepare_cede (pTHX_ struct coro_transfer_args *ta) 1979prepare_cede (pTHX_ struct coro_transfer_args *ta)
1857{ 1980{
1858 api_ready (aTHX_ coro_current); 1981 api_ready (aTHX_ coro_current);
1859 prepare_schedule (aTHX_ ta); 1982 prepare_schedule (aTHX_ ta);
1860} 1983}
1861 1984
1862INLINE void 1985ecb_inline void
1863prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1986prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1864{ 1987{
1865 SV *prev = SvRV (coro_current); 1988 SV *prev = SvRV (coro_current);
1866 1989
1867 if (coro_nready) 1990 if (coro_nready)
… …
1897{ 2020{
1898 struct coro_transfer_args ta; 2021 struct coro_transfer_args ta;
1899 2022
1900 prepare_cede (aTHX_ &ta); 2023 prepare_cede (aTHX_ &ta);
1901 2024
1902 if (expect_true (ta.prev != ta.next)) 2025 if (ecb_expect_true (ta.prev != ta.next))
1903 { 2026 {
1904 TRANSFER (ta, 1); 2027 TRANSFER (ta, 1);
1905 return 1; 2028 return 1;
1906 } 2029 }
1907 else 2030 else
… …
1950 coro->slot->runops = RUNOPS_DEFAULT; 2073 coro->slot->runops = RUNOPS_DEFAULT;
1951 } 2074 }
1952} 2075}
1953 2076
1954static void 2077static void
2078coro_push_av (pTHX_ AV *av, I32 gimme_v)
2079{
2080 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2081 {
2082 dSP;
2083
2084 if (gimme_v == G_SCALAR)
2085 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2086 else
2087 {
2088 int i;
2089 EXTEND (SP, AvFILLp (av) + 1);
2090
2091 for (i = 0; i <= AvFILLp (av); ++i)
2092 PUSHs (AvARRAY (av)[i]);
2093 }
2094
2095 PUTBACK;
2096 }
2097}
2098
2099static void
2100coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2101{
2102 if (!coro->on_destroy)
2103 coro->on_destroy = newAV ();
2104
2105 av_push (coro->on_destroy, cb);
2106}
2107
2108static void
2109slf_destroy_join (pTHX_ struct CoroSLF *frame)
2110{
2111 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2112}
2113
2114static int
2115slf_check_join (pTHX_ struct CoroSLF *frame)
2116{
2117 struct coro *coro = (struct coro *)frame->data;
2118
2119 if (!coro->status)
2120 return 1;
2121
2122 frame->destroy = 0;
2123
2124 coro_push_av (aTHX_ coro->status, GIMME_V);
2125
2126 SvREFCNT_dec ((SV *)coro->hv);
2127
2128 return 0;
2129}
2130
2131static void
2132slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2133{
2134 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2135
2136 if (items > 1)
2137 croak ("join called with too many arguments");
2138
2139 if (coro->status)
2140 frame->prepare = prepare_nop;
2141 else
2142 {
2143 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2144 frame->prepare = prepare_schedule;
2145 }
2146
2147 frame->check = slf_check_join;
2148 frame->destroy = slf_destroy_join;
2149 frame->data = (void *)coro;
2150 SvREFCNT_inc (coro->hv);
2151}
2152
2153static void
1955coro_call_on_destroy (pTHX_ struct coro *coro) 2154coro_call_on_destroy (pTHX_ struct coro *coro)
1956{ 2155{
1957 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2156 AV *od = coro->on_destroy;
1958 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1959 2157
1960 if (on_destroyp) 2158 if (!od)
1961 { 2159 return;
1962 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1963 2160
2161 coro->on_destroy = 0;
2162 sv_2mortal ((SV *)od);
2163
1964 while (AvFILLp (on_destroy) >= 0) 2164 while (AvFILLp (od) >= 0)
2165 {
2166 SV *cb = sv_2mortal (av_pop (od));
2167
2168 /* coro hv's (and only hv's at the moment) are supported as well */
2169 if (SvSTATEhv_p (aTHX_ cb))
2170 api_ready (aTHX_ cb);
2171 else
1965 { 2172 {
1966 dSP; /* don't disturb outer sp */ 2173 dSP; /* don't disturb outer sp */
1967 SV *cb = av_pop (on_destroy);
1968
1969 PUSHMARK (SP); 2174 PUSHMARK (SP);
1970 2175
1971 if (statusp) 2176 if (coro->status)
1972 { 2177 {
1973 int i; 2178 PUTBACK;
1974 AV *status = (AV *)SvRV (*statusp); 2179 coro_push_av (aTHX_ coro->status, G_ARRAY);
1975 EXTEND (SP, AvFILLp (status) + 1); 2180 SPAGAIN;
1976
1977 for (i = 0; i <= AvFILLp (status); ++i)
1978 PUSHs (AvARRAY (status)[i]);
1979 } 2181 }
1980 2182
1981 PUTBACK; 2183 PUTBACK;
1982 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2184 call_sv (cb, G_VOID | G_DISCARD);
1983 } 2185 }
1984 } 2186 }
1985} 2187}
1986 2188
1987static void 2189static void
1988slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2190coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1989{ 2191{
1990 int i; 2192 AV *av;
1991 HV *hv = (HV *)SvRV (coro_current); 2193
1992 AV *av = newAV (); 2194 if (coro->status)
2195 {
2196 av = coro->status;
2197 av_clear (av);
2198 }
2199 else
2200 av = coro->status = newAV ();
1993 2201
1994 /* items are actually not so common, so optimise for this case */ 2202 /* items are actually not so common, so optimise for this case */
1995 if (items) 2203 if (items)
1996 { 2204 {
2205 int i;
2206
1997 av_extend (av, items - 1); 2207 av_extend (av, items - 1);
1998 2208
1999 for (i = 0; i < items; ++i) 2209 for (i = 0; i < items; ++i)
2000 av_push (av, SvREFCNT_inc_NN (arg [i])); 2210 av_push (av, SvREFCNT_inc_NN (arg [i]));
2001 } 2211 }
2212}
2002 2213
2003 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2214static void
2004 2215slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2216{
2005 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2217 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2006 api_ready (aTHX_ sv_manager); 2218 api_ready (aTHX_ sv_manager);
2007 2219
2008 frame->prepare = prepare_schedule; 2220 frame->prepare = prepare_schedule;
2009 frame->check = slf_check_repeat; 2221 frame->check = slf_check_repeat;
2010 2222
2011 /* as a minor optimisation, we could unwind all stacks here */ 2223 /* as a minor optimisation, we could unwind all stacks here */
2012 /* but that puts extra pressure on pp_slf, and is not worth much */ 2224 /* but that puts extra pressure on pp_slf, and is not worth much */
2013 /*coro_unwind_stacks (aTHX);*/ 2225 /*coro_unwind_stacks (aTHX);*/
2226}
2227
2228static void
2229slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2230{
2231 HV *coro_hv = (HV *)SvRV (coro_current);
2232
2233 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2234 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2235}
2236
2237static void
2238slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2239{
2240 HV *coro_hv;
2241 struct coro *coro;
2242
2243 if (items <= 0)
2244 croak ("Coro::cancel called without coro object,");
2245
2246 coro = SvSTATE (arg [0]);
2247 coro_hv = coro->hv;
2248
2249 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2250
2251 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2252 {
2253 /* coro currently busy cancelling something, so just notify it */
2254 coro->slf_frame.data = (void *)coro;
2255
2256 frame->prepare = prepare_nop;
2257 frame->check = slf_check_nop;
2258 }
2259 else if (coro_hv == (HV *)SvRV (coro_current))
2260 {
2261 /* cancelling the current coro is allowed, and equals terminate */
2262 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2263 }
2264 else
2265 {
2266 struct coro *self = SvSTATE_current;
2267
2268 if (!self)
2269 croak ("Coro::cancel called outside of thread content,");
2270
2271 /* otherwise we cancel directly, purely for speed reasons
2272 * unfortunately, this requires some magic trickery, as
2273 * somebody else could cancel us, so we have to fight the cancellation.
2274 * this is ugly, and hopefully fully worth the extra speed.
2275 * besides, I can't get the slow-but-safe version working...
2276 */
2277 slf_frame.data = 0;
2278 self->flags |= CF_NOCANCEL;
2279 coro_state_destroy (aTHX_ coro);
2280 self->flags &= ~CF_NOCANCEL;
2281
2282 if (slf_frame.data)
2283 {
2284 /* while we were busy we have been cancelled, so terminate */
2285 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2286 }
2287 else
2288 {
2289 frame->prepare = prepare_nop;
2290 frame->check = slf_check_nop;
2291 }
2292 }
2293}
2294
2295static int
2296slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2297{
2298 frame->prepare = 0;
2299 coro_unwind_stacks (aTHX);
2300
2301 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2302
2303 return 1;
2304}
2305
2306static int
2307safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2308{
2309 if (coro->cctx)
2310 croak ("coro inside C callback, unable to cancel at this time, caught");
2311
2312 if (coro->flags & CF_NEW)
2313 {
2314 coro_set_status (aTHX_ coro, arg, items);
2315 coro_state_destroy (aTHX_ coro);
2316 }
2317 else
2318 {
2319 if (!coro->slf_frame.prepare)
2320 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2321
2322 slf_destroy (aTHX_ coro);
2323
2324 coro_set_status (aTHX_ coro, arg, items);
2325 coro->slf_frame.prepare = prepare_nop;
2326 coro->slf_frame.check = slf_check_safe_cancel;
2327
2328 api_ready (aTHX_ (SV *)coro->hv);
2329 }
2330
2331 return 1;
2014} 2332}
2015 2333
2016/*****************************************************************************/ 2334/*****************************************************************************/
2017/* async pool handler */ 2335/* async pool handler */
2018 2336
… …
2049slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2367slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2050{ 2368{
2051 HV *hv = (HV *)SvRV (coro_current); 2369 HV *hv = (HV *)SvRV (coro_current);
2052 struct coro *coro = SvSTATE_hv ((SV *)hv); 2370 struct coro *coro = SvSTATE_hv ((SV *)hv);
2053 2371
2054 if (expect_true (coro->saved_deffh)) 2372 if (ecb_expect_true (coro->saved_deffh))
2055 { 2373 {
2056 /* subsequent iteration */ 2374 /* subsequent iteration */
2057 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2375 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2058 coro->saved_deffh = 0; 2376 coro->saved_deffh = 0;
2059 2377
2060 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2378 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2061 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2379 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2062 { 2380 {
2063 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2381 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2064 coro->invoke_av = newAV (); 2382 return;
2065
2066 frame->prepare = prepare_nop;
2067 } 2383 }
2068 else 2384 else
2069 { 2385 {
2070 av_clear (GvAV (PL_defgv)); 2386 av_clear (GvAV (PL_defgv));
2071 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2387 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2121 2437
2122static int 2438static int
2123slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2439slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2124{ 2440{
2125 SV *data = (SV *)frame->data; 2441 SV *data = (SV *)frame->data;
2126 2442
2127 if (CORO_THROW) 2443 if (CORO_THROW)
2128 return 0; 2444 return 0;
2129 2445
2130 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2446 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2131 return 1; 2447 return 1;
… …
2167 cb = sv_2mortal (coro->rouse_cb); 2483 cb = sv_2mortal (coro->rouse_cb);
2168 coro->rouse_cb = 0; 2484 coro->rouse_cb = 0;
2169 } 2485 }
2170 2486
2171 if (!SvROK (cb) 2487 if (!SvROK (cb)
2172 || SvTYPE (SvRV (cb)) != SVt_PVCV 2488 || SvTYPE (SvRV (cb)) != SVt_PVCV
2173 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2489 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2174 croak ("Coro::rouse_wait called with illegal callback argument,"); 2490 croak ("Coro::rouse_wait called with illegal callback argument,");
2175 2491
2176 { 2492 {
2177 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2493 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2294static void 2610static void
2295slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2611slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2296{ 2612{
2297 frame->prepare = prepare_cede_notself; 2613 frame->prepare = prepare_cede_notself;
2298 frame->check = slf_check_nop; 2614 frame->check = slf_check_nop;
2615}
2616
2617/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2618static void
2619slf_destroy (pTHX_ struct coro *coro)
2620{
2621 struct CoroSLF frame = coro->slf_frame;
2622
2623 /*
2624 * The on_destroy below most likely is from an SLF call.
2625 * Since by definition the SLF call will not finish when we destroy
2626 * the coro, we will have to force-finish it here, otherwise
2627 * cleanup functions cannot call SLF functions.
2628 */
2629 coro->slf_frame.prepare = 0;
2630
2631 /* this callback is reserved for slf functions needing to do cleanup */
2632 if (frame.destroy && frame.prepare && !PL_dirty)
2633 frame.destroy (aTHX_ &frame);
2299} 2634}
2300 2635
2301/* 2636/*
2302 * these not obviously related functions are all rolled into one 2637 * these not obviously related functions are all rolled into one
2303 * function to increase chances that they all will call transfer with the same 2638 * function to increase chances that they all will call transfer with the same
… …
2310 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2645 I32 checkmark; /* mark SP to see how many elements check has pushed */
2311 2646
2312 /* set up the slf frame, unless it has already been set-up */ 2647 /* set up the slf frame, unless it has already been set-up */
2313 /* the latter happens when a new coro has been started */ 2648 /* the latter happens when a new coro has been started */
2314 /* or when a new cctx was attached to an existing coroutine */ 2649 /* or when a new cctx was attached to an existing coroutine */
2315 if (expect_true (!slf_frame.prepare)) 2650 if (ecb_expect_true (!slf_frame.prepare))
2316 { 2651 {
2317 /* first iteration */ 2652 /* first iteration */
2318 dSP; 2653 dSP;
2319 SV **arg = PL_stack_base + TOPMARK + 1; 2654 SV **arg = PL_stack_base + TOPMARK + 1;
2320 int items = SP - arg; /* args without function object */ 2655 int items = SP - arg; /* args without function object */
… …
2361 while (slf_frame.check (aTHX_ &slf_frame)); 2696 while (slf_frame.check (aTHX_ &slf_frame));
2362 2697
2363 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2698 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2364 2699
2365 /* exception handling */ 2700 /* exception handling */
2366 if (expect_false (CORO_THROW)) 2701 if (ecb_expect_false (CORO_THROW))
2367 { 2702 {
2368 SV *exception = sv_2mortal (CORO_THROW); 2703 SV *exception = sv_2mortal (CORO_THROW);
2369 2704
2370 CORO_THROW = 0; 2705 CORO_THROW = 0;
2371 sv_setsv (ERRSV, exception); 2706 sv_setsv (ERRSV, exception);
2372 croak (0); 2707 croak (0);
2373 } 2708 }
2374 2709
2375 /* return value handling - mostly like entersub */ 2710 /* return value handling - mostly like entersub */
2376 /* make sure we put something on the stack in scalar context */ 2711 /* make sure we put something on the stack in scalar context */
2377 if (GIMME_V == G_SCALAR) 2712 if (GIMME_V == G_SCALAR
2713 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2378 { 2714 {
2379 dSP; 2715 dSP;
2380 SV **bot = PL_stack_base + checkmark; 2716 SV **bot = PL_stack_base + checkmark;
2381 2717
2382 if (sp == bot) /* too few, push undef */ 2718 if (sp == bot) /* too few, push undef */
2383 bot [1] = &PL_sv_undef; 2719 bot [1] = &PL_sv_undef;
2384 else if (sp != bot + 1) /* too many, take last one */ 2720 else /* too many, take last one */
2385 bot [1] = *sp; 2721 bot [1] = *sp;
2386 2722
2387 SP = bot + 1; 2723 SP = bot + 1;
2388 2724
2389 PUTBACK; 2725 PUTBACK;
… …
2422 if (PL_op->op_flags & OPf_STACKED) 2758 if (PL_op->op_flags & OPf_STACKED)
2423 { 2759 {
2424 if (items > slf_arga) 2760 if (items > slf_arga)
2425 { 2761 {
2426 slf_arga = items; 2762 slf_arga = items;
2427 free (slf_argv); 2763 Safefree (slf_argv);
2428 slf_argv = malloc (slf_arga * sizeof (SV *)); 2764 New (0, slf_argv, slf_arga, SV *);
2429 } 2765 }
2430 2766
2431 slf_argc = items; 2767 slf_argc = items;
2432 2768
2433 for (i = 0; i < items; ++i) 2769 for (i = 0; i < items; ++i)
… …
2496{ 2832{
2497 PerlIOBuf base; 2833 PerlIOBuf base;
2498 NV next, every; 2834 NV next, every;
2499} PerlIOCede; 2835} PerlIOCede;
2500 2836
2501static IV 2837static IV ecb_cold
2502PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2838PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2503{ 2839{
2504 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2840 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2505 2841
2506 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2842 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2507 self->next = nvtime () + self->every; 2843 self->next = nvtime () + self->every;
2508 2844
2509 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2845 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2510} 2846}
2511 2847
2512static SV * 2848static SV * ecb_cold
2513PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2849PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2514{ 2850{
2515 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2851 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2516 2852
2517 return newSVnv (self->every); 2853 return newSVnv (self->every);
… …
2629 SvREFCNT_dec (cb); 2965 SvREFCNT_dec (cb);
2630 } 2966 }
2631} 2967}
2632 2968
2633static void 2969static void
2634coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2970coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2635{ 2971{
2636 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2972 /* call $sem->adjust (0) to possibly wake up some other waiters */
2637 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2973 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2638} 2974}
2639 2975
2640static int 2976static int
2641slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2977slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2642{ 2978{
2643 AV *av = (AV *)frame->data; 2979 AV *av = (AV *)frame->data;
2644 SV *count_sv = AvARRAY (av)[0]; 2980 SV *count_sv = AvARRAY (av)[0];
2981 SV *coro_hv = SvRV (coro_current);
2982
2983 frame->destroy = 0;
2645 2984
2646 /* if we are about to throw, don't actually acquire the lock, just throw */ 2985 /* if we are about to throw, don't actually acquire the lock, just throw */
2647 if (CORO_THROW) 2986 if (ecb_expect_false (CORO_THROW))
2987 {
2988 /* we still might be responsible for the semaphore, so wake up others */
2989 coro_semaphore_adjust (aTHX_ av, 0);
2990
2648 return 0; 2991 return 0;
2992 }
2649 else if (SvIVX (count_sv) > 0) 2993 else if (SvIVX (count_sv) > 0)
2650 { 2994 {
2651 SvSTATE_current->on_destroy = 0;
2652
2653 if (acquire) 2995 if (acquire)
2654 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2996 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2655 else 2997 else
2656 coro_semaphore_adjust (aTHX_ av, 0); 2998 coro_semaphore_adjust (aTHX_ av, 0);
2657 2999
… …
2661 { 3003 {
2662 int i; 3004 int i;
2663 /* if we were woken up but can't down, we look through the whole */ 3005 /* if we were woken up but can't down, we look through the whole */
2664 /* waiters list and only add us if we aren't in there already */ 3006 /* waiters list and only add us if we aren't in there already */
2665 /* this avoids some degenerate memory usage cases */ 3007 /* this avoids some degenerate memory usage cases */
2666 3008 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2667 for (i = 1; i <= AvFILLp (av); ++i)
2668 if (AvARRAY (av)[i] == SvRV (coro_current)) 3009 if (AvARRAY (av)[i] == coro_hv)
2669 return 1; 3010 return 1;
2670 3011
2671 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3012 av_push (av, SvREFCNT_inc (coro_hv));
2672 return 1; 3013 return 1;
2673 } 3014 }
2674} 3015}
2675 3016
2676static int 3017static int
… …
2699 { 3040 {
2700 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3041 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2701 3042
2702 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3043 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2703 frame->prepare = prepare_schedule; 3044 frame->prepare = prepare_schedule;
2704
2705 /* to avoid race conditions when a woken-up coro gets terminated */ 3045 /* to avoid race conditions when a woken-up coro gets terminated */
2706 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3046 /* we arrange for a temporary on_destroy that calls adjust (0) */
2707 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3047 frame->destroy = coro_semaphore_destroy;
2708 } 3048 }
2709} 3049}
2710 3050
2711static void 3051static void
2712slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3052slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2794 { 3134 {
2795 SV *cb_cv = s_get_cv_croak (arg [1]); 3135 SV *cb_cv = s_get_cv_croak (arg [1]);
2796 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3136 av_push (av, SvREFCNT_inc_NN (cb_cv));
2797 3137
2798 if (SvIVX (AvARRAY (av)[0])) 3138 if (SvIVX (AvARRAY (av)[0]))
2799 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3139 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2800 3140
2801 frame->prepare = prepare_nop; 3141 frame->prepare = prepare_nop;
2802 frame->check = slf_check_nop; 3142 frame->check = slf_check_nop;
2803 } 3143 }
2804 else if (SvIVX (AvARRAY (av)[0])) 3144 else if (SvIVX (AvARRAY (av)[0]))
… …
2881 /* it quickly returns */ 3221 /* it quickly returns */
2882 if (CORO_THROW) 3222 if (CORO_THROW)
2883 return 0; 3223 return 0;
2884 3224
2885 /* one element that is an RV? repeat! */ 3225 /* one element that is an RV? repeat! */
2886 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3226 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2887 return 1; 3227 return 1;
2888 3228
2889 /* restore status */ 3229 /* restore status */
2890 { 3230 {
2891 SV *data_sv = av_pop (state); 3231 SV *data_sv = av_pop (state);
… …
2930 dSP; 3270 dSP;
2931 3271
2932 static SV *prio_cv; 3272 static SV *prio_cv;
2933 static SV *prio_sv; 3273 static SV *prio_sv;
2934 3274
2935 if (expect_false (!prio_cv)) 3275 if (ecb_expect_false (!prio_cv))
2936 { 3276 {
2937 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3277 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2938 prio_sv = newSViv (0); 3278 prio_sv = newSViv (0);
2939 } 3279 }
2940 3280
… …
2966 /* now call the AIO function - we assume our request is uncancelable */ 3306 /* now call the AIO function - we assume our request is uncancelable */
2967 PUTBACK; 3307 PUTBACK;
2968 call_sv ((SV *)req, G_VOID | G_DISCARD); 3308 call_sv ((SV *)req, G_VOID | G_DISCARD);
2969 } 3309 }
2970 3310
2971 /* now that the requets is going, we loop toll we have a result */ 3311 /* now that the request is going, we loop till we have a result */
2972 frame->data = (void *)state; 3312 frame->data = (void *)state;
2973 frame->prepare = prepare_schedule; 3313 frame->prepare = prepare_schedule;
2974 frame->check = slf_check_aio_req; 3314 frame->check = slf_check_aio_req;
2975} 3315}
2976 3316
… …
3046 } 3386 }
3047 3387
3048 return coro_sv; 3388 return coro_sv;
3049} 3389}
3050 3390
3391#ifndef __cplusplus
3392ecb_cold XS(boot_Coro__State);
3393#endif
3394
3395#if CORO_JIT
3396
3397static void ecb_noinline ecb_cold
3398pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3399{
3400 dSP;
3401 AV *av = newAV ();
3402
3403 av_store (av, 3, newSVuv (d));
3404 av_store (av, 2, newSVuv (c));
3405 av_store (av, 1, newSVuv (b));
3406 av_store (av, 0, newSVuv (a));
3407
3408 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3409
3410 PUTBACK;
3411}
3412
3413static void ecb_noinline ecb_cold
3414jit_init (pTHX)
3415{
3416 dSP;
3417 SV *load, *save;
3418 char *map_base;
3419 char *load_ptr, *save_ptr;
3420 STRLEN load_len, save_len, map_len;
3421 int count;
3422
3423 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3424
3425 PUSHMARK (SP);
3426 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3427 #include "state.h"
3428 count = call_pv ("Coro::State::_jit", G_ARRAY);
3429 SPAGAIN;
3430
3431 save = POPs; save_ptr = SvPVbyte (save, save_len);
3432 load = POPs; load_ptr = SvPVbyte (load, load_len);
3433
3434 map_len = load_len + save_len + 16;
3435
3436 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3437
3438 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3439
3440 load_perl_slots = (load_save_perl_slots_type)map_base;
3441 memcpy (map_base, load_ptr, load_len);
3442
3443 map_base += (load_len + 15) & ~15;
3444
3445 save_perl_slots = (load_save_perl_slots_type)map_base;
3446 memcpy (map_base, save_ptr, save_len);
3447
3448 /* we are good citizens and try to make the page read-only, so the evil evil */
3449 /* hackers might have it a bit more difficult */
3450 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3451
3452 PUTBACK;
3453 eval_pv ("undef &Coro::State::_jit", 1);
3454}
3455
3456#endif
3457
3051MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3458MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
3052 3459
3053PROTOTYPES: DISABLE 3460PROTOTYPES: DISABLE
3054 3461
3055BOOT: 3462BOOT:
3056{ 3463{
3464#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3465#include "state.h"
3057#ifdef USE_ITHREADS 3466#ifdef USE_ITHREADS
3058# if CORO_PTHREAD 3467# if CORO_PTHREAD
3059 coro_thx = PERL_GET_CONTEXT; 3468 coro_thx = PERL_GET_CONTEXT;
3060# endif 3469# endif
3061#endif 3470#endif
3062 BOOT_PAGESIZE; 3471 /* perl defines these to check for existance first, but why it doesn't */
3472 /* just create them one at init time is not clear to me, except for */
3473 /* programs trying to delete them, but... */
3474 /* anyway, we declare this as invalid and make sure they are initialised here */
3475 DEFSV;
3476 ERRSV;
3063 3477
3064 cctx_current = cctx_new_empty (); 3478 cctx_current = cctx_new_empty ();
3065 3479
3066 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3480 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
3067 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3481 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
3107 coroapi.prepare_nop = prepare_nop; 3521 coroapi.prepare_nop = prepare_nop;
3108 coroapi.prepare_schedule = prepare_schedule; 3522 coroapi.prepare_schedule = prepare_schedule;
3109 coroapi.prepare_cede = prepare_cede; 3523 coroapi.prepare_cede = prepare_cede;
3110 coroapi.prepare_cede_notself = prepare_cede_notself; 3524 coroapi.prepare_cede_notself = prepare_cede_notself;
3111 3525
3112 { 3526 time_init (aTHX);
3113 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3114
3115 if (!svp) croak ("Time::HiRes is required");
3116 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3117
3118 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3119
3120 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3121 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3122 }
3123 3527
3124 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3528 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3529#if CORO_JIT
3530 PUTBACK;
3531 jit_init (aTHX);
3532 SPAGAIN;
3533#endif
3125} 3534}
3126 3535
3127SV * 3536SV *
3128new (SV *klass, ...) 3537new (SV *klass, ...)
3129 ALIAS: 3538 ALIAS:
… …
3136void 3545void
3137transfer (...) 3546transfer (...)
3138 PROTOTYPE: $$ 3547 PROTOTYPE: $$
3139 CODE: 3548 CODE:
3140 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3549 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3141
3142bool
3143_destroy (SV *coro_sv)
3144 CODE:
3145 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3146 OUTPUT:
3147 RETVAL
3148
3149void
3150_exit (int code)
3151 PROTOTYPE: $
3152 CODE:
3153 _exit (code);
3154 3550
3155SV * 3551SV *
3156clone (Coro::State coro) 3552clone (Coro::State coro)
3157 CODE: 3553 CODE:
3158{ 3554{
… …
3213void 3609void
3214list () 3610list ()
3215 PROTOTYPE: 3611 PROTOTYPE:
3216 PPCODE: 3612 PPCODE:
3217{ 3613{
3218 struct coro *coro; 3614 struct coro *coro;
3219 for (coro = coro_first; coro; coro = coro->next) 3615 for (coro = coro_first; coro; coro = coro->next)
3220 if (coro->hv) 3616 if (coro->hv)
3221 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3617 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3222} 3618}
3223 3619
… …
3228 CODE: 3624 CODE:
3229{ 3625{
3230 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3626 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3231 { 3627 {
3232 struct coro *current = SvSTATE_current; 3628 struct coro *current = SvSTATE_current;
3629 struct CoroSLF slf_save;
3233 3630
3234 if (current != coro) 3631 if (current != coro)
3235 { 3632 {
3236 PUTBACK; 3633 PUTBACK;
3237 save_perl (aTHX_ current); 3634 save_perl (aTHX_ current);
3238 load_perl (aTHX_ coro); 3635 load_perl (aTHX_ coro);
3636 /* the coro is most likely in an active SLF call.
3637 * while not strictly required (the code we execute is
3638 * not allowed to call any SLF functions), it's cleaner
3639 * to reinitialise the slf_frame and restore it later.
3640 * This might one day allow us to actually do SLF calls
3641 * from code executed here.
3642 */
3643 slf_save = slf_frame;
3644 slf_frame.prepare = 0;
3239 SPAGAIN; 3645 SPAGAIN;
3240 } 3646 }
3241 3647
3242 PUSHSTACK; 3648 PUSHSTACK;
3243 3649
… …
3253 SPAGAIN; 3659 SPAGAIN;
3254 3660
3255 if (current != coro) 3661 if (current != coro)
3256 { 3662 {
3257 PUTBACK; 3663 PUTBACK;
3664 slf_frame = slf_save;
3258 save_perl (aTHX_ coro); 3665 save_perl (aTHX_ coro);
3259 load_perl (aTHX_ current); 3666 load_perl (aTHX_ current);
3260 SPAGAIN; 3667 SPAGAIN;
3261 } 3668 }
3262 } 3669 }
… …
3267 PROTOTYPE: $ 3674 PROTOTYPE: $
3268 ALIAS: 3675 ALIAS:
3269 is_ready = CF_READY 3676 is_ready = CF_READY
3270 is_running = CF_RUNNING 3677 is_running = CF_RUNNING
3271 is_new = CF_NEW 3678 is_new = CF_NEW
3272 is_destroyed = CF_DESTROYED 3679 is_destroyed = CF_ZOMBIE
3680 is_zombie = CF_ZOMBIE
3273 is_suspended = CF_SUSPENDED 3681 is_suspended = CF_SUSPENDED
3274 CODE: 3682 CODE:
3275 RETVAL = boolSV (coro->flags & ix); 3683 RETVAL = boolSV (coro->flags & ix);
3276 OUTPUT: 3684 OUTPUT:
3277 RETVAL 3685 RETVAL
3278 3686
3279void 3687void
3280throw (Coro::State self, SV *throw = &PL_sv_undef) 3688throw (SV *self, SV *exception = &PL_sv_undef)
3281 PROTOTYPE: $;$ 3689 PROTOTYPE: $;$
3282 CODE: 3690 CODE:
3283{ 3691{
3692 struct coro *coro = SvSTATE (self);
3284 struct coro *current = SvSTATE_current; 3693 struct coro *current = SvSTATE_current;
3285 SV **throwp = self == current ? &CORO_THROW : &self->except; 3694 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3286 SvREFCNT_dec (*throwp); 3695 SvREFCNT_dec (*exceptionp);
3287 SvGETMAGIC (throw); 3696 SvGETMAGIC (exception);
3288 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3697 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3698
3699 api_ready (aTHX_ self);
3289} 3700}
3290 3701
3291void 3702void
3292api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3703api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3293 PROTOTYPE: $;$ 3704 PROTOTYPE: $;$
… …
3348 3759
3349void 3760void
3350cancel (Coro::State self) 3761cancel (Coro::State self)
3351 CODE: 3762 CODE:
3352 coro_state_destroy (aTHX_ self); 3763 coro_state_destroy (aTHX_ self);
3353 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3354
3355 3764
3356SV * 3765SV *
3357enable_times (int enabled = enable_times) 3766enable_times (int enabled = enable_times)
3358 CODE: 3767 CODE:
3359{ 3768{
… …
3372 3781
3373void 3782void
3374times (Coro::State self) 3783times (Coro::State self)
3375 PPCODE: 3784 PPCODE:
3376{ 3785{
3377 struct coro *current = SvSTATE (coro_current); 3786 struct coro *current = SvSTATE (coro_current);
3378 3787
3379 if (expect_false (current == self)) 3788 if (ecb_expect_false (current == self))
3380 { 3789 {
3381 coro_times_update (); 3790 coro_times_update ();
3382 coro_times_add (SvSTATE (coro_current)); 3791 coro_times_add (SvSTATE (coro_current));
3383 } 3792 }
3384 3793
3385 EXTEND (SP, 2); 3794 EXTEND (SP, 2);
3386 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3795 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3387 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3796 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3388 3797
3389 if (expect_false (current == self)) 3798 if (ecb_expect_false (current == self))
3390 coro_times_sub (SvSTATE (coro_current)); 3799 coro_times_sub (SvSTATE (coro_current));
3391} 3800}
3392 3801
3393void 3802void
3394swap_sv (Coro::State coro, SV *sv, SV *swapsv) 3803swap_sv (Coro::State coro, SV *sv, SV *swapsv)
… …
3415BOOT: 3824BOOT:
3416{ 3825{
3417 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3826 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3418 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3827 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3419 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3828 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3420 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3421 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3829 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3422 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3830 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3423 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3831 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3424 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3832 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3425 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3833 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3426 3834
3427 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3835 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3428 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3836 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3429 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3837 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3430 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ 3838 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3431 3839
3432 coro_stash = gv_stashpv ("Coro", TRUE); 3840 coro_stash = gv_stashpv ("Coro", TRUE);
3433 3841
3434 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3842 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3435 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3843 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3436 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3844 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3464 api_ready (aTHX_ RETVAL); 3872 api_ready (aTHX_ RETVAL);
3465 OUTPUT: 3873 OUTPUT:
3466 RETVAL 3874 RETVAL
3467 3875
3468void 3876void
3877_destroy (Coro::State coro)
3878 CODE:
3879 /* used by the manager thread */
3880 coro_state_destroy (aTHX_ coro);
3881
3882void
3883on_destroy (Coro::State coro, SV *cb)
3884 CODE:
3885 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3886
3887void
3888join (...)
3889 CODE:
3890 CORO_EXECUTE_SLF_XS (slf_init_join);
3891
3892void
3469terminate (...) 3893terminate (...)
3470 CODE: 3894 CODE:
3471 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3895 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3896
3897void
3898cancel (...)
3899 CODE:
3900 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3901
3902int
3903safe_cancel (Coro::State self, ...)
3904 C_ARGS: aTHX_ self, &ST (1), items - 1
3472 3905
3473void 3906void
3474schedule (...) 3907schedule (...)
3475 CODE: 3908 CODE:
3476 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3909 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3633 on_leave = 1 4066 on_leave = 1
3634 PROTOTYPE: & 4067 PROTOTYPE: &
3635 CODE: 4068 CODE:
3636{ 4069{
3637 struct coro *coro = SvSTATE_current; 4070 struct coro *coro = SvSTATE_current;
3638 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4071 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3639 4072
3640 block = s_get_cv_croak (block); 4073 block = s_get_cv_croak (block);
3641 4074
3642 if (!*avp) 4075 if (!*avp)
3643 *avp = newAV (); 4076 *avp = newAV ();
… …
3663 4096
3664SV * 4097SV *
3665new (SV *klass, SV *count = 0) 4098new (SV *klass, SV *count = 0)
3666 CODE: 4099 CODE:
3667{ 4100{
3668 int semcnt = 1; 4101 int semcnt = 1;
3669 4102
3670 if (count) 4103 if (count)
3671 { 4104 {
3672 SvGETMAGIC (count); 4105 SvGETMAGIC (count);
3673 4106
… …
3733 XSRETURN_NO; 4166 XSRETURN_NO;
3734} 4167}
3735 4168
3736void 4169void
3737waiters (SV *self) 4170waiters (SV *self)
3738 PPCODE: 4171 PPCODE:
3739{ 4172{
3740 AV *av = (AV *)SvRV (self); 4173 AV *av = (AV *)SvRV (self);
3741 int wcount = AvFILLp (av) + 1 - 1; 4174 int wcount = AvFILLp (av) + 1 - 1;
3742 4175
3743 if (GIMME_V == G_SCALAR) 4176 if (GIMME_V == G_SCALAR)
… …
3752} 4185}
3753 4186
3754MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4187MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3755 4188
3756void 4189void
3757_may_delete (SV *sem, int count, int extra_refs) 4190_may_delete (SV *sem, int count, unsigned int extra_refs)
3758 PPCODE: 4191 PPCODE:
3759{ 4192{
3760 AV *av = (AV *)SvRV (sem); 4193 AV *av = (AV *)SvRV (sem);
3761 4194
3762 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4195 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3763 && AvFILLp (av) == 0 /* no waiters, just count */ 4196 && AvFILLp (av) == 0 /* no waiters, just count */
3764 && SvIV (AvARRAY (av)[0]) == count) 4197 && SvIV (AvARRAY (av)[0]) == count)
3765 XSRETURN_YES; 4198 XSRETURN_YES;
… …
3786 4219
3787void 4220void
3788broadcast (SV *self) 4221broadcast (SV *self)
3789 CODE: 4222 CODE:
3790{ 4223{
3791 AV *av = (AV *)SvRV (self); 4224 AV *av = (AV *)SvRV (self);
3792 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4225 coro_signal_wake (aTHX_ av, AvFILLp (av));
3793} 4226}
3794 4227
3795void 4228void
3796send (SV *self) 4229send (SV *self)
… …
3804 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4237 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3805} 4238}
3806 4239
3807IV 4240IV
3808awaited (SV *self) 4241awaited (SV *self)
3809 CODE: 4242 CODE:
3810 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4243 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3811 OUTPUT: 4244 OUTPUT:
3812 RETVAL 4245 RETVAL
3813 4246
3814 4247
… …
3819 4252
3820void 4253void
3821_schedule (...) 4254_schedule (...)
3822 CODE: 4255 CODE:
3823{ 4256{
3824 static int incede; 4257 static int incede;
3825 4258
3826 api_cede_notself (aTHX); 4259 api_cede_notself (aTHX);
3827 4260
3828 ++incede; 4261 ++incede;
3829 while (coro_nready >= incede && api_cede (aTHX)) 4262 while (coro_nready >= incede && api_cede (aTHX))
… …
3873 { 4306 {
3874 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4307 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3875 coro_old_pp_sselect = 0; 4308 coro_old_pp_sselect = 0;
3876 } 4309 }
3877 4310
4311MODULE = Coro::State PACKAGE = Coro::Util
3878 4312
4313void
4314_exit (int code)
4315 CODE:
4316 _exit (code);
4317
4318NV
4319time ()
4320 CODE:
4321 RETVAL = nvtime (aTHX);
4322 OUTPUT:
4323 RETVAL
4324
4325NV
4326gettimeofday ()
4327 PPCODE:
4328{
4329 UV tv [2];
4330 u2time (aTHX_ tv);
4331 EXTEND (SP, 2);
4332 PUSHs (sv_2mortal (newSVuv (tv [0])));
4333 PUSHs (sv_2mortal (newSVuv (tv [1])));
4334}
4335

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