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Comparing Coro/Coro/State.xs (file contents):
Revision 1.388 by root, Wed Feb 23 07:14:22 2011 UTC vs.
Revision 1.448 by root, Thu Jun 4 22:58:28 2015 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */ 1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS 2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3 3
4#define NDEBUG 1 4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5 5
6#include "libcoro/coro.c" 6#include "libcoro/coro.c"
7 7
8#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
9#define PERL_EXT 9#define PERL_EXT
… …
13#include "XSUB.h" 13#include "XSUB.h"
14#include "perliol.h" 14#include "perliol.h"
15 15
16#include "schmorp.h" 16#include "schmorp.h"
17 17
18#define ECB_NO_THREADS 1
19#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
18#include <stdio.h> 23#include <stdio.h>
19#include <errno.h> 24#include <errno.h>
20#include <assert.h> 25#include <assert.h>
21 26
22#ifndef SVs_PADSTALE 27#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0 28# define SVs_PADSTALE 0
24#endif 29#endif
25 30
26#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)
27# undef HAS_GETTIMEOFDAY 61# undef HAS_GETTIMEOFDAY
28# undef setjmp 62# undef setjmp
29# undef longjmp 63# undef longjmp
30# undef _exit 64# undef _exit
31# define setjmp _setjmp /* deep magic */ 65# define setjmp _setjmp /* deep magic */
32#else 66#else
33# include <inttypes.h> /* most portable stdint.h */ 67# include <inttypes.h> /* most portable stdint.h */
34#endif 68#endif
35 69
36#ifdef HAVE_MMAP
37# include <unistd.h>
38# include <sys/mman.h>
39# ifndef MAP_ANONYMOUS
40# ifdef MAP_ANON
41# define MAP_ANONYMOUS MAP_ANON
42# else
43# undef HAVE_MMAP
44# endif
45# endif
46# include <limits.h>
47# ifndef PAGESIZE
48# define PAGESIZE pagesize
49# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
50static long pagesize;
51# else
52# define BOOT_PAGESIZE (void)0
53# endif
54#else
55# define PAGESIZE 0
56# define BOOT_PAGESIZE (void)0
57#endif
58
59#if CORO_USE_VALGRIND
60# include <valgrind/valgrind.h>
61#endif
62
63/* the maximum number of idle cctx that will be pooled */ 70/* the maximum number of idle cctx that will be pooled */
64static int cctx_max_idle = 4; 71static int cctx_max_idle = 4;
65 72
66#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 73#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
67# undef CORO_STACKGUARD 74# define HAS_SCOPESTACK_NAME 1
68#endif
69
70#ifndef CORO_STACKGUARD
71# define CORO_STACKGUARD 0
72#endif 75#endif
73 76
74/* prefer perl internal functions over our own? */ 77/* prefer perl internal functions over our own? */
75#ifndef CORO_PREFER_PERL_FUNCTIONS 78#ifndef CORO_PREFER_PERL_FUNCTIONS
76# define CORO_PREFER_PERL_FUNCTIONS 0 79# define CORO_PREFER_PERL_FUNCTIONS 0
… …
86# define STACKLEVEL ((void *)&stacklevel) 89# define STACKLEVEL ((void *)&stacklevel)
87#endif 90#endif
88 91
89#define IN_DESTRUCT PL_dirty 92#define IN_DESTRUCT PL_dirty
90 93
91#if __GNUC__ >= 3
92# define attribute(x) __attribute__(x)
93# define expect(expr,value) __builtin_expect ((expr), (value))
94# define INLINE static inline
95#else
96# define attribute(x)
97# define expect(expr,value) (expr)
98# define INLINE static
99#endif
100
101#define expect_false(expr) expect ((expr) != 0, 0)
102#define expect_true(expr) expect ((expr) != 0, 1)
103
104#define NOINLINE attribute ((noinline))
105
106#include "CoroAPI.h" 94#include "CoroAPI.h"
107#define GCoroAPI (&coroapi) /* very sneaky */ 95#define GCoroAPI (&coroapi) /* very sneaky */
108 96
109#ifdef USE_ITHREADS 97#ifdef USE_ITHREADS
110# if CORO_PTHREAD 98# if CORO_PTHREAD
… …
126static void (*u2time)(pTHX_ UV ret[2]); 114static void (*u2time)(pTHX_ UV ret[2]);
127 115
128/* we hijack an hopefully unused CV flag for our purposes */ 116/* we hijack an hopefully unused CV flag for our purposes */
129#define CVf_SLF 0x4000 117#define CVf_SLF 0x4000
130static OP *pp_slf (pTHX); 118static OP *pp_slf (pTHX);
119static void slf_destroy (pTHX_ struct coro *coro);
131 120
132static U32 cctx_gen; 121static U32 cctx_gen;
133static size_t cctx_stacksize = CORO_STACKSIZE; 122static size_t cctx_stacksize = CORO_STACKSIZE;
134static struct CoroAPI coroapi; 123static struct CoroAPI coroapi;
135static AV *main_mainstack; /* used to differentiate between $main and others */ 124static AV *main_mainstack; /* used to differentiate between $main and others */
… …
165static char times_valid; 154static char times_valid;
166 155
167static struct coro_cctx *cctx_first; 156static struct coro_cctx *cctx_first;
168static int cctx_count, cctx_idle; 157static int cctx_count, cctx_idle;
169 158
170enum { 159enum
160{
171 CC_MAPPED = 0x01, 161 CC_MAPPED = 0x01,
172 CC_NOREUSE = 0x02, /* throw this away after tracing */ 162 CC_NOREUSE = 0x02, /* throw this away after tracing */
173 CC_TRACE = 0x04, 163 CC_TRACE = 0x04,
174 CC_TRACE_SUB = 0x08, /* trace sub calls */ 164 CC_TRACE_SUB = 0x08, /* trace sub calls */
175 CC_TRACE_LINE = 0x10, /* trace each statement */ 165 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
180typedef struct coro_cctx 170typedef struct coro_cctx
181{ 171{
182 struct coro_cctx *next; 172 struct coro_cctx *next;
183 173
184 /* the stack */ 174 /* the stack */
185 void *sptr; 175 struct coro_stack stack;
186 size_t ssize;
187 176
188 /* cpu state */ 177 /* cpu state */
189 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
190 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
191 JMPENV *top_env; 182 JMPENV *top_env;
192 coro_context cctx; 183 coro_context cctx;
193 184
194 U32 gen; 185 U32 gen;
195#if CORO_USE_VALGRIND 186#if CORO_USE_VALGRIND
196 int valgrind_id; 187 int valgrind_id;
197#endif 188#endif
198 unsigned char flags; 189 unsigned char flags;
199} coro_cctx; 190} coro_cctx;
200 191
201coro_cctx *cctx_current; /* the currently running cctx */ 192static coro_cctx *cctx_current; /* the currently running cctx */
202 193
203/*****************************************************************************/ 194/*****************************************************************************/
204 195
196static MGVTBL coro_state_vtbl;
197
205enum { 198enum
199{
206 CF_RUNNING = 0x0001, /* coroutine is running */ 200 CF_RUNNING = 0x0001, /* coroutine is running */
207 CF_READY = 0x0002, /* coroutine is ready */ 201 CF_READY = 0x0002, /* coroutine is ready */
208 CF_NEW = 0x0004, /* has never been switched to */ 202 CF_NEW = 0x0004, /* has never been switched to */
209 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 203 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
210 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) */
211}; 206};
212 207
213/* 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 */
214typedef struct 209typedef struct
215{ 210{
216 SV *defsv;
217 AV *defav;
218 SV *errsv;
219 SV *irsgv;
220 HV *hinthv;
221#define VAR(name,type) type name; 211 #define VARx(name,expr,type) type name;
222# include "state.h" 212 #include "state.h"
223#undef VAR
224} perl_slots; 213} perl_slots;
225 214
215/* how many context stack entries do we need for perl_slots */
226#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))
227 217
228/* this is a structure representing a perl-level coroutine */ 218/* this is a structure representing a perl-level coroutine */
229struct coro { 219struct coro
220{
230 /* the C coroutine allocated to this perl coroutine, if any */ 221 /* the C coroutine allocated to this perl coroutine, if any */
231 coro_cctx *cctx; 222 coro_cctx *cctx;
232 223
233 /* ready queue */ 224 /* ready queue */
234 struct coro *next_ready; 225 struct coro *next_ready;
… …
236 /* state data */ 227 /* state data */
237 struct CoroSLF slf_frame; /* saved slf frame */ 228 struct CoroSLF slf_frame; /* saved slf frame */
238 AV *mainstack; 229 AV *mainstack;
239 perl_slots *slot; /* basically the saved sp */ 230 perl_slots *slot; /* basically the saved sp */
240 231
241 CV *startcv; /* the CV to execute */ 232 CV *startcv; /* the CV to execute */
242 AV *args; /* data associated with this coroutine (initial args) */ 233 AV *args; /* data associated with this coroutine (initial args) */
243 int refcnt; /* coroutines are refcounted, yes */
244 int flags; /* CF_ flags */ 234 int flags; /* CF_ flags */
245 HV *hv; /* the perl hash associated with this coro, if any */ 235 HV *hv; /* the perl hash associated with this coro, if any */
246 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
247 236
248 /* statistics */ 237 /* statistics */
249 int usecount; /* number of transfers to this coro */ 238 int usecount; /* number of transfers to this coro */
250 239
251 /* coro process data */ 240 /* coro process data */
252 int prio; 241 int prio;
253 SV *except; /* exception to be thrown */ 242 SV *except; /* exception to be thrown */
254 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 */
255 246
256 /* async_pool */ 247 /* async_pool */
257 SV *saved_deffh; 248 SV *saved_deffh;
258 SV *invoke_cb; 249 SV *invoke_cb;
259 AV *invoke_av; 250 AV *invoke_av;
… …
275typedef struct coro *Coro__State; 266typedef struct coro *Coro__State;
276typedef struct coro *Coro__State_or_hashref; 267typedef struct coro *Coro__State_or_hashref;
277 268
278/* the following variables are effectively part of the perl context */ 269/* the following variables are effectively part of the perl context */
279/* and get copied between struct coro and these variables */ 270/* and get copied between struct coro and these variables */
280/* the mainr easonw e don't support windows process emulation */ 271/* the main reason we don't support windows process emulation */
281static struct CoroSLF slf_frame; /* the current slf frame */ 272static struct CoroSLF slf_frame; /* the current slf frame */
282 273
283/** Coro ********************************************************************/ 274/** Coro ********************************************************************/
284 275
285#define CORO_PRIO_MAX 3 276#define CORO_PRIO_MAX 3
… …
291 282
292/* for Coro.pm */ 283/* for Coro.pm */
293static SV *coro_current; 284static SV *coro_current;
294static SV *coro_readyhook; 285static SV *coro_readyhook;
295static 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 */
296static CV *cv_coro_run, *cv_coro_terminate; 287static CV *cv_coro_run;
297static struct coro *coro_first; 288static struct coro *coro_first;
298#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
299 313
300/** Coro::Select ************************************************************/ 314/** Coro::Select ************************************************************/
301 315
302static OP *(*coro_old_pp_sselect) (pTHX); 316static OP *(*coro_old_pp_sselect) (pTHX);
303static SV *coro_select_select; 317static SV *coro_select_select;
… …
319 333
320/** time stuff **************************************************************/ 334/** time stuff **************************************************************/
321 335
322#ifdef HAS_GETTIMEOFDAY 336#ifdef HAS_GETTIMEOFDAY
323 337
324static void 338ecb_inline void
325coro_u2time (pTHX_ UV ret[2]) 339coro_u2time (pTHX_ UV ret[2])
326{ 340{
327 struct timeval tv; 341 struct timeval tv;
328 gettimeofday (&tv, 0); 342 gettimeofday (&tv, 0);
329 343
330 ret [0] = tv.tv_sec; 344 ret [0] = tv.tv_sec;
331 ret [1] = tv.tv_usec; 345 ret [1] = tv.tv_usec;
332} 346}
333 347
334static double 348ecb_inline double
335coro_nvtime () 349coro_nvtime (void)
336{ 350{
337 struct timeval tv; 351 struct timeval tv;
338 gettimeofday (&tv, 0); 352 gettimeofday (&tv, 0);
339 353
340 return tv.tv_sec + tv.tv_usec * 1e-6; 354 return tv.tv_sec + tv.tv_usec * 1e-6;
341} 355}
342 356
343static void 357ecb_inline void
344time_init (pTHX) 358time_init (pTHX)
345{ 359{
346 nvtime = coro_nvtime; 360 nvtime = coro_nvtime;
347 u2time = coro_u2time; 361 u2time = coro_u2time;
348} 362}
349 363
350#else 364#else
351 365
352static void 366ecb_inline void
353time_init (pTHX) 367time_init (pTHX)
354{ 368{
355 SV **svp; 369 SV **svp;
356 370
357 require_pv ("Time/HiRes.pm"); 371 require_pv ("Time/HiRes.pm");
358 372
359 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); 373 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
360 374
361 if (!svp) croak ("Time::HiRes is required, but missing."); 375 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
362 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); 376 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
363 377
364 nvtime = INT2PTR (double (*)(), SvIV (*svp)); 378 nvtime = INT2PTR (double (*)(), SvIV (*svp));
365 379
366 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); 380 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
367 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); 381 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
… …
369 383
370#endif 384#endif
371 385
372/** lowlevel stuff **********************************************************/ 386/** lowlevel stuff **********************************************************/
373 387
374static SV * 388static SV * ecb_noinline
375coro_get_sv (pTHX_ const char *name, int create) 389coro_get_sv (pTHX_ const char *name, int create)
376{ 390{
377#if PERL_VERSION_ATLEAST (5,10,0) 391#if PERL_VERSION_ATLEAST (5,10,0)
378 /* 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 */
379 get_sv (name, create); 393 get_sv (name, create);
380#endif 394#endif
381 return get_sv (name, create); 395 return get_sv (name, create);
382} 396}
383 397
384static AV * 398static AV * ecb_noinline
385coro_get_av (pTHX_ const char *name, int create) 399coro_get_av (pTHX_ const char *name, int create)
386{ 400{
387#if PERL_VERSION_ATLEAST (5,10,0) 401#if PERL_VERSION_ATLEAST (5,10,0)
388 /* 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 */
389 get_av (name, create); 403 get_av (name, create);
390#endif 404#endif
391 return get_av (name, create); 405 return get_av (name, create);
392} 406}
393 407
394static HV * 408static HV * ecb_noinline
395coro_get_hv (pTHX_ const char *name, int create) 409coro_get_hv (pTHX_ const char *name, int create)
396{ 410{
397#if PERL_VERSION_ATLEAST (5,10,0) 411#if PERL_VERSION_ATLEAST (5,10,0)
398 /* 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 */
399 get_hv (name, create); 413 get_hv (name, create);
400#endif 414#endif
401 return get_hv (name, create); 415 return get_hv (name, create);
402} 416}
403 417
404INLINE void 418ecb_inline void
405coro_times_update () 419coro_times_update (void)
406{ 420{
407#ifdef coro_clock_gettime 421#ifdef coro_clock_gettime
408 struct timespec ts; 422 struct timespec ts;
409 423
410 ts.tv_sec = ts.tv_nsec = 0; 424 ts.tv_sec = ts.tv_nsec = 0;
… …
422 time_real [0] = tv [0]; 436 time_real [0] = tv [0];
423 time_real [1] = tv [1] * 1000; 437 time_real [1] = tv [1] * 1000;
424#endif 438#endif
425} 439}
426 440
427INLINE void 441ecb_inline void
428coro_times_add (struct coro *c) 442coro_times_add (struct coro *c)
429{ 443{
430 c->t_real [1] += time_real [1]; 444 c->t_real [1] += time_real [1];
431 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]; }
432 c->t_real [0] += time_real [0]; 446 c->t_real [0] += time_real [0];
… …
434 c->t_cpu [1] += time_cpu [1]; 448 c->t_cpu [1] += time_cpu [1];
435 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]; }
436 c->t_cpu [0] += time_cpu [0]; 450 c->t_cpu [0] += time_cpu [0];
437} 451}
438 452
439INLINE void 453ecb_inline void
440coro_times_sub (struct coro *c) 454coro_times_sub (struct coro *c)
441{ 455{
442 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]; }
443 c->t_real [1] -= time_real [1]; 457 c->t_real [1] -= time_real [1];
444 c->t_real [0] -= time_real [0]; 458 c->t_real [0] -= time_real [0];
… …
452/* magic glue */ 466/* magic glue */
453 467
454#define CORO_MAGIC_type_cv 26 468#define CORO_MAGIC_type_cv 26
455#define CORO_MAGIC_type_state PERL_MAGIC_ext 469#define CORO_MAGIC_type_state PERL_MAGIC_ext
456 470
457#define CORO_MAGIC_NN(sv, type) \ 471#define CORO_MAGIC_NN(sv, type) \
458 (expect_true (SvMAGIC (sv)->mg_type == type) \ 472 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
459 ? SvMAGIC (sv) \ 473 ? SvMAGIC (sv) \
460 : mg_find (sv, type)) 474 : mg_find (sv, type))
461 475
462#define CORO_MAGIC(sv, type) \ 476#define CORO_MAGIC(sv, type) \
463 (expect_true (SvMAGIC (sv)) \ 477 (ecb_expect_true (SvMAGIC (sv)) \
464 ? CORO_MAGIC_NN (sv, type) \ 478 ? CORO_MAGIC_NN (sv, type) \
465 : 0) 479 : 0)
466 480
467#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)
468#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)
469 483
470INLINE 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 *
471SvSTATE_ (pTHX_ SV *coro) 500SvSTATE_ (pTHX_ SV *coro)
472{ 501{
473 HV *stash;
474 MAGIC *mg; 502 MAGIC *mg;
475 503
476 if (SvROK (coro)) 504 if (SvROK (coro))
477 coro = SvRV (coro); 505 coro = SvRV (coro);
478 506
479 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 507 mg = SvSTATEhv_p (aTHX_ coro);
508 if (!mg)
480 croak ("Coro::State object required"); 509 croak ("Coro::State object required");
481 510
482 stash = SvSTASH (coro);
483 if (expect_false (stash != coro_stash && stash != coro_state_stash))
484 {
485 /* very slow, but rare, check */
486 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
487 croak ("Coro::State object required");
488 }
489
490 mg = CORO_MAGIC_state (coro);
491 return (struct coro *)mg->mg_ptr; 511 return (struct coro *)mg->mg_ptr;
492} 512}
493 513
494#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 514#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
495 515
… …
498#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 518#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
499 519
500/*****************************************************************************/ 520/*****************************************************************************/
501/* padlist management and caching */ 521/* padlist management and caching */
502 522
503static AV * 523ecb_inline PADLIST *
504coro_derive_padlist (pTHX_ CV *cv) 524coro_derive_padlist (pTHX_ CV *cv)
505{ 525{
506 AV *padlist = CvPADLIST (cv); 526 PADLIST *padlist = CvPADLIST (cv);
507 AV *newpadlist, *newpad; 527 PADLIST *newpadlist;
528 PADNAMELIST *padnames;
529 PAD *newpad;
530 PADOFFSET off = PadlistMAX (padlist) + 1;
508 531
509 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. */
510 AvREAL_off (newpadlist); 560 AvREAL_off (newpadlist);
511#if PERL_VERSION_ATLEAST (5,10,0)
512 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
513#else
514 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
515#endif 561#endif
516 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
517 --AvFILLp (padlist);
518 562
519 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 563 /* Already extended to 2 elements by newPADLIST. */
520 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;
521 571
522 return newpadlist; 572 return newpadlist;
523} 573}
524 574
525static void 575ecb_inline void
526free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
527{ 577{
528 /* may be during global destruction */ 578 /* may be during global destruction */
529 if (!IN_DESTRUCT) 579 if (!IN_DESTRUCT)
530 { 580 {
531 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
532 582
533 while (i > 0) /* special-case index 0 */ 583 while (i > 0) /* special-case index 0 */
534 { 584 {
535 /* we try to be extra-careful here */ 585 /* we try to be extra-careful here */
536 AV *av = (AV *)AvARRAY (padlist)[i--]; 586 PAD *pad = PadlistARRAY (padlist)[i--];
537 I32 j = AvFILLp (av);
538 587
588 if (pad)
589 {
590 I32 j = PadMAX (pad);
591
539 while (j >= 0) 592 while (j >= 0)
540 SvREFCNT_dec (AvARRAY (av)[j--]); 593 SvREFCNT_dec (PadARRAY (pad)[j--]);
541 594
542 AvFILLp (av) = -1; 595 PadMAX (pad) = -1;
543 SvREFCNT_dec (av); 596 SvREFCNT_dec (pad);
597 }
544 } 598 }
545 599
546 SvREFCNT_dec (AvARRAY (padlist)[0]); 600 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
547 601
602#if NEWPADAPI
603 Safefree (PadlistARRAY (padlist));
604 Safefree (padlist);
605#else
548 AvFILLp (padlist) = -1; 606 AvFILLp (padlist) = -1;
607 AvREAL_off (padlist);
549 SvREFCNT_dec ((SV*)padlist); 608 SvREFCNT_dec ((SV*)padlist);
609#endif
550 } 610 }
551} 611}
552 612
553static int 613static int
554coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 614coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
555{ 615{
556 AV *padlist; 616 PADLIST *padlist;
557 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;
558 619
559 /* perl manages to free our internal AV and _then_ call us */ 620 /* perl manages to free our internal AV and _then_ call us */
560 if (IN_DESTRUCT) 621 if (IN_DESTRUCT)
561 return 0; 622 return 0;
562 623
563 /* casting is fun. */ 624 while (len--)
564 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
565 free_padlist (aTHX_ padlist); 625 free_padlist (aTHX_ padlists[len]);
566
567 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
568 626
569 return 0; 627 return 0;
570} 628}
571 629
572static MGVTBL coro_cv_vtbl = { 630static MGVTBL coro_cv_vtbl = {
573 0, 0, 0, 0, 631 0, 0, 0, 0,
574 coro_cv_free 632 coro_cv_free
575}; 633};
576 634
577/* the next two functions merely cache the padlists */ 635/* the next two functions merely cache the padlists */
578static void 636ecb_inline void
579get_padlist (pTHX_ CV *cv) 637get_padlist (pTHX_ CV *cv)
580{ 638{
581 MAGIC *mg = CORO_MAGIC_cv (cv); 639 MAGIC *mg = CORO_MAGIC_cv (cv);
582 AV *av; 640 size_t *lenp;
583 641
584 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 642 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
585 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 643 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
586 else 644 else
587 { 645 {
588#if CORO_PREFER_PERL_FUNCTIONS 646#if CORO_PREFER_PERL_FUNCTIONS
589 /* this is probably cleaner? but also slower! */ 647 /* this is probably cleaner? but also slower! */
590 /* in practise, it seems to be less stable */ 648 /* in practise, it seems to be less stable */
… …
596 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 654 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
597#endif 655#endif
598 } 656 }
599} 657}
600 658
601static void 659ecb_inline void
602put_padlist (pTHX_ CV *cv) 660put_padlist (pTHX_ CV *cv)
603{ 661{
604 MAGIC *mg = CORO_MAGIC_cv (cv); 662 MAGIC *mg = CORO_MAGIC_cv (cv);
605 AV *av;
606 663
607 if (expect_false (!mg)) 664 if (ecb_expect_false (!mg))
665 {
608 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);
609 674
610 av = (AV *)mg->mg_obj; 675 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
611
612 if (expect_false (AvFILLp (av) >= AvMAX (av)))
613 av_extend (av, AvFILLp (av) + 1);
614
615 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
616} 676}
617 677
618/** load & save, init *******************************************************/ 678/** load & save, init *******************************************************/
619 679
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
620/* swap sv heads, at least logically */ 718/* swap sv heads, at least logically */
621static void 719static void
622swap_svs (pTHX_ Coro__State c) 720swap_svs (pTHX_ Coro__State c)
623{ 721{
624 int i; 722 int i;
625 723
626 for (i = 0; i <= AvFILLp (c->swap_sv); ) 724 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
627 { 725 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
628 SV *a = AvARRAY (c->swap_sv)[i++];
629 SV *b = AvARRAY (c->swap_sv)[i++];
630
631 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
632 SV tmp;
633
634 /* swap sv_any */
635 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
636
637 /* swap sv_flags */
638 SvFLAGS (&tmp) = SvFLAGS (a);
639 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
640 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
641
642#if PERL_VERSION_ATLEAST (5,10,0)
643 /* perl 5.10 complicates this _quite_ a bit, but it also is
644 * much faster, so no quarrels here. alternatively, we could
645 * sv_upgrade to avoid this.
646 */
647 {
648 /* swap sv_u */
649 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
650
651 /* if SvANY points to the head, we need to adjust the pointers,
652 * as the pointer for a still points to b, and maybe vice versa.
653 */
654 #define svany_in_head(type) \
655 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
656
657 if (svany_in_head (SvTYPE (a)))
658 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
659
660 if (svany_in_head (SvTYPE (b)))
661 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
662 }
663#endif
664 }
665} 726}
666 727
667#define SWAP_SVS(coro) \ 728#define SWAP_SVS(coro) \
668 if (expect_false ((coro)->swap_sv)) \ 729 if (ecb_expect_false ((coro)->swap_sv)) \
669 swap_svs (aTHX_ (coro)) 730 swap_svs (aTHX_ (coro))
670 731
671static void 732static void
672on_enterleave_call (pTHX_ SV *cb); 733on_enterleave_call (pTHX_ SV *cb);
673 734
… …
677 perl_slots *slot = c->slot; 738 perl_slots *slot = c->slot;
678 c->slot = 0; 739 c->slot = 0;
679 740
680 PL_mainstack = c->mainstack; 741 PL_mainstack = c->mainstack;
681 742
682 GvSV (PL_defgv) = slot->defsv; 743#if CORO_JIT
683 GvAV (PL_defgv) = slot->defav; 744 load_perl_slots (slot);
684 GvSV (PL_errgv) = slot->errsv; 745#else
685 GvSV (irsgv) = slot->irsgv;
686 GvHV (PL_hintgv) = slot->hinthv;
687
688 #define VAR(name,type) PL_ ## name = slot->name; 746 #define VARx(name,expr,type) expr = slot->name;
689 # include "state.h" 747 #include "state.h"
690 #undef VAR 748#endif
691 749
692 { 750 {
693 dSP; 751 dSP;
694 752
695 CV *cv; 753 CV *cv;
696 754
697 /* now do the ugly restore mess */ 755 /* now do the ugly restore mess */
698 while (expect_true (cv = (CV *)POPs)) 756 while (ecb_expect_true (cv = (CV *)POPs))
699 { 757 {
700 put_padlist (aTHX_ cv); /* mark this padlist as available */ 758 put_padlist (aTHX_ cv); /* mark this padlist as available */
701 CvDEPTH (cv) = PTR2IV (POPs); 759 CvDEPTH (cv) = PTR2IV (POPs);
702 CvPADLIST (cv) = (AV *)POPs; 760 CvPADLIST (cv) = (PADLIST *)POPs;
703 } 761 }
704 762
705 PUTBACK; 763 PUTBACK;
706 } 764 }
707 765
708 slf_frame = c->slf_frame; 766 slf_frame = c->slf_frame;
709 CORO_THROW = c->except; 767 CORO_THROW = c->except;
710 768
711 if (expect_false (enable_times)) 769 if (ecb_expect_false (enable_times))
712 { 770 {
713 if (expect_false (!times_valid)) 771 if (ecb_expect_false (!times_valid))
714 coro_times_update (); 772 coro_times_update ();
715 773
716 coro_times_sub (c); 774 coro_times_sub (c);
717 } 775 }
718 776
719 if (expect_false (c->on_enter)) 777 if (ecb_expect_false (c->on_enter))
720 { 778 {
721 int i; 779 int i;
722 780
723 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 781 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
724 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 782 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
… …
730static void 788static void
731save_perl (pTHX_ Coro__State c) 789save_perl (pTHX_ Coro__State c)
732{ 790{
733 SWAP_SVS (c); 791 SWAP_SVS (c);
734 792
735 if (expect_false (c->on_leave)) 793 if (ecb_expect_false (c->on_leave))
736 { 794 {
737 int i; 795 int i;
738 796
739 for (i = AvFILLp (c->on_leave); i >= 0; --i) 797 for (i = AvFILLp (c->on_leave); i >= 0; --i)
740 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 798 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
741 } 799 }
742 800
743 times_valid = 0; 801 times_valid = 0;
744 802
745 if (expect_false (enable_times)) 803 if (ecb_expect_false (enable_times))
746 { 804 {
747 coro_times_update (); times_valid = 1; 805 coro_times_update (); times_valid = 1;
748 coro_times_add (c); 806 coro_times_add (c);
749 } 807 }
750 808
… …
764 822
765 XPUSHs (Nullsv); 823 XPUSHs (Nullsv);
766 /* this loop was inspired by pp_caller */ 824 /* this loop was inspired by pp_caller */
767 for (;;) 825 for (;;)
768 { 826 {
769 while (expect_true (cxix >= 0)) 827 while (ecb_expect_true (cxix >= 0))
770 { 828 {
771 PERL_CONTEXT *cx = &ccstk[cxix--]; 829 PERL_CONTEXT *cx = &ccstk[cxix--];
772 830
773 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))
774 { 832 {
775 CV *cv = cx->blk_sub.cv; 833 CV *cv = cx->blk_sub.cv;
776 834
777 if (expect_true (CvDEPTH (cv))) 835 if (ecb_expect_true (CvDEPTH (cv)))
778 { 836 {
779 EXTEND (SP, 3); 837 EXTEND (SP, 3);
780 PUSHs ((SV *)CvPADLIST (cv)); 838 PUSHs ((SV *)CvPADLIST (cv));
781 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 839 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
782 PUSHs ((SV *)cv); 840 PUSHs ((SV *)cv);
… …
785 get_padlist (aTHX_ cv); 843 get_padlist (aTHX_ cv);
786 } 844 }
787 } 845 }
788 } 846 }
789 847
790 if (expect_true (top_si->si_type == PERLSI_MAIN)) 848 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
791 break; 849 break;
792 850
793 top_si = top_si->si_prev; 851 top_si = top_si->si_prev;
794 ccstk = top_si->si_cxstack; 852 ccstk = top_si->si_cxstack;
795 cxix = top_si->si_cxix; 853 cxix = top_si->si_cxix;
… …
797 855
798 PUTBACK; 856 PUTBACK;
799 } 857 }
800 858
801 /* allocate some space on the context stack for our purposes */ 859 /* allocate some space on the context stack for our purposes */
802 /* we manually unroll here, as usually 2 slots is enough */ 860 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
803 if (SLOT_COUNT >= 1) CXINC;
804 if (SLOT_COUNT >= 2) CXINC;
805 if (SLOT_COUNT >= 3) CXINC;
806 { 861 {
807 unsigned int i; 862 unsigned int i;
863
808 for (i = 3; i < SLOT_COUNT; ++i) 864 for (i = 0; i < SLOT_COUNT; ++i)
809 CXINC; 865 CXINC;
810 } 866
811 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 867 cxstack_ix -= SLOT_COUNT; /* undo allocation */
868 }
812 869
813 c->mainstack = PL_mainstack; 870 c->mainstack = PL_mainstack;
814 871
815 { 872 {
816 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 873 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
817 874
818 slot->defav = GvAV (PL_defgv); 875#if CORO_JIT
819 slot->defsv = DEFSV; 876 save_perl_slots (slot);
820 slot->errsv = ERRSV; 877#else
821 slot->irsgv = GvSV (irsgv);
822 slot->hinthv = GvHV (PL_hintgv);
823
824 #define VAR(name,type) slot->name = PL_ ## name; 878 #define VARx(name,expr,type) slot->name = expr;
825 # include "state.h" 879 #include "state.h"
826 #undef VAR 880#endif
827 } 881 }
828} 882}
829 883
830/* 884/*
831 * allocate various perl stacks. This is almost an exact copy 885 * allocate various perl stacks. This is almost an exact copy
… …
837# define coro_init_stacks(thx) init_stacks () 891# define coro_init_stacks(thx) init_stacks ()
838#else 892#else
839static void 893static void
840coro_init_stacks (pTHX) 894coro_init_stacks (pTHX)
841{ 895{
842 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() */
843 PL_curstackinfo->si_type = PERLSI_MAIN; 897 PL_curstackinfo->si_type = PERLSI_MAIN;
844 PL_curstack = PL_curstackinfo->si_stack; 898 PL_curstack = PL_curstackinfo->si_stack;
845 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 899 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
846 900
847 PL_stack_base = AvARRAY(PL_curstack); 901 PL_stack_base = AvARRAY(PL_curstack);
… …
862#endif 916#endif
863 917
864 New(54,PL_scopestack,8,I32); 918 New(54,PL_scopestack,8,I32);
865 PL_scopestack_ix = 0; 919 PL_scopestack_ix = 0;
866 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
867 924
868 New(54,PL_savestack,24,ANY); 925 New(54,PL_savestack,24,ANY);
869 PL_savestack_ix = 0; 926 PL_savestack_ix = 0;
870 PL_savestack_max = 24; 927 PL_savestack_max = 24;
871 928
… …
899 } 956 }
900 957
901 Safefree (PL_tmps_stack); 958 Safefree (PL_tmps_stack);
902 Safefree (PL_markstack); 959 Safefree (PL_markstack);
903 Safefree (PL_scopestack); 960 Safefree (PL_scopestack);
961#if HAS_SCOPESTACK_NAME
962 Safefree (PL_scopestack_name);
963#endif
904 Safefree (PL_savestack); 964 Safefree (PL_savestack);
905#if !PERL_VERSION_ATLEAST (5,10,0) 965#if !PERL_VERSION_ATLEAST (5,10,0)
906 Safefree (PL_retstack); 966 Safefree (PL_retstack);
907#endif 967#endif
908} 968}
… …
954#endif 1014#endif
955 1015
956/* 1016/*
957 * This overrides the default magic get method of %SIG elements. 1017 * This overrides the default magic get method of %SIG elements.
958 * 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
959 * 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),
960 * readback here. 1020 * we just provide our own readback here.
961 */ 1021 */
962static int 1022static int ecb_cold
963coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1023coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
964{ 1024{
965 const char *s = MgPV_nolen_const (mg); 1025 const char *s = MgPV_nolen_const (mg);
966 1026
967 if (*s == '_') 1027 if (*s == '_')
968 { 1028 {
969 SV **svp = 0; 1029 SV **svp = 0;
970 1030
971 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1031 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
972 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1032 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
973 1033
974 if (svp) 1034 if (svp)
975 { 1035 {
976 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);
977 return 0; 1046 return 0;
978 } 1047 }
979 } 1048 }
980 1049
981 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1050 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
982} 1051}
983 1052
984static int 1053static int ecb_cold
985coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1054coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
986{ 1055{
987 const char *s = MgPV_nolen_const (mg); 1056 const char *s = MgPV_nolen_const (mg);
988 1057
989 if (*s == '_') 1058 if (*s == '_')
… …
1003 } 1072 }
1004 1073
1005 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1074 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
1006} 1075}
1007 1076
1008static int 1077static int ecb_cold
1009coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1078coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
1010{ 1079{
1011 const char *s = MgPV_nolen_const (mg); 1080 const char *s = MgPV_nolen_const (mg);
1012 1081
1013 if (*s == '_') 1082 if (*s == '_')
… …
1048 return 1; 1117 return 1;
1049} 1118}
1050 1119
1051static UNOP init_perl_op; 1120static UNOP init_perl_op;
1052 1121
1053static 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 */
1054init_perl (pTHX_ struct coro *coro) 1123init_perl (pTHX_ struct coro *coro)
1055{ 1124{
1056 /* 1125 /*
1057 * emulate part of the perl startup here. 1126 * emulate part of the perl startup here.
1058 */ 1127 */
… …
1073 PL_parser = 0; 1142 PL_parser = 0;
1074#endif 1143#endif
1075 PL_hints = 0; 1144 PL_hints = 0;
1076 1145
1077 /* recreate the die/warn hooks */ 1146 /* recreate the die/warn hooks */
1078 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1147 PL_diehook = SvREFCNT_inc (rv_diehook);
1079 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1148 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1080 1149
1081 GvSV (PL_defgv) = newSV (0); 1150 GvSV (PL_defgv) = newSV (0);
1082 GvAV (PL_defgv) = coro->args; coro->args = 0; 1151 GvAV (PL_defgv) = coro->args; coro->args = 0;
1083 GvSV (PL_errgv) = newSV (0); 1152 GvSV (PL_errgv) = newSV (0);
1084 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);
1085 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
1086 PL_rs = newSVsv (GvSV (irsgv)); 1158 PL_rs = newSVsv (GvSV (irsgv));
1087 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1159 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1088 1160
1089 { 1161 {
1090 dSP; 1162 dSP;
… …
1105 /* 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
1106 * 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.
1107 */ 1179 */
1108 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 */
1109 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;
1110 1183
1111 /* 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 */
1112 init_perl_op.op_next = PL_op; 1185 init_perl_op.op_next = PL_op;
1113 init_perl_op.op_type = OP_ENTERSUB; 1186 init_perl_op.op_type = OP_ENTERSUB;
1114 init_perl_op.op_ppaddr = pp_slf; 1187 init_perl_op.op_ppaddr = pp_slf;
… …
1119 /* copy throw, in case it was set before init_perl */ 1192 /* copy throw, in case it was set before init_perl */
1120 CORO_THROW = coro->except; 1193 CORO_THROW = coro->except;
1121 1194
1122 SWAP_SVS (coro); 1195 SWAP_SVS (coro);
1123 1196
1124 if (expect_false (enable_times)) 1197 if (ecb_expect_false (enable_times))
1125 { 1198 {
1126 coro_times_update (); 1199 coro_times_update ();
1127 coro_times_sub (coro); 1200 coro_times_sub (coro);
1128 } 1201 }
1129} 1202}
… …
1153destroy_perl (pTHX_ struct coro *coro) 1226destroy_perl (pTHX_ struct coro *coro)
1154{ 1227{
1155 SV *svf [9]; 1228 SV *svf [9];
1156 1229
1157 { 1230 {
1231 SV *old_current = SvRV (coro_current);
1158 struct coro *current = SvSTATE_current; 1232 struct coro *current = SvSTATE (old_current);
1159 1233
1160 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));
1161 1235
1162 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
1163 load_perl (aTHX_ coro); 1241 load_perl (aTHX_ coro);
1164 1242
1165 coro_unwind_stacks (aTHX); 1243 coro_unwind_stacks (aTHX);
1166 coro_destruct_stacks (aTHX);
1167 1244
1168 /* restore swapped sv's */ 1245 /* restore swapped sv's */
1169 SWAP_SVS (coro); 1246 SWAP_SVS (coro);
1170 1247
1248 coro_destruct_stacks (aTHX);
1249
1171 // now save some sv's to be free'd later 1250 /* now save some sv's to be free'd later */
1172 svf [0] = GvSV (PL_defgv); 1251 svf [0] = GvSV (PL_defgv);
1173 svf [1] = (SV *)GvAV (PL_defgv); 1252 svf [1] = (SV *)GvAV (PL_defgv);
1174 svf [2] = GvSV (PL_errgv); 1253 svf [2] = GvSV (PL_errgv);
1175 svf [3] = (SV *)PL_defoutgv; 1254 svf [3] = (SV *)PL_defoutgv;
1176 svf [4] = PL_rs; 1255 svf [4] = PL_rs;
… …
1178 svf [6] = (SV *)GvHV (PL_hintgv); 1257 svf [6] = (SV *)GvHV (PL_hintgv);
1179 svf [7] = PL_diehook; 1258 svf [7] = PL_diehook;
1180 svf [8] = PL_warnhook; 1259 svf [8] = PL_warnhook;
1181 assert (9 == sizeof (svf) / sizeof (*svf)); 1260 assert (9 == sizeof (svf) / sizeof (*svf));
1182 1261
1262 SvRV_set (coro_current, old_current);
1263
1183 load_perl (aTHX_ current); 1264 load_perl (aTHX_ current);
1184 } 1265 }
1185 1266
1186 { 1267 {
1187 unsigned int i; 1268 unsigned int i;
… …
1194 SvREFCNT_dec (coro->invoke_cb); 1275 SvREFCNT_dec (coro->invoke_cb);
1195 SvREFCNT_dec (coro->invoke_av); 1276 SvREFCNT_dec (coro->invoke_av);
1196 } 1277 }
1197} 1278}
1198 1279
1199INLINE void 1280ecb_inline void
1200free_coro_mortal (pTHX) 1281free_coro_mortal (pTHX)
1201{ 1282{
1202 if (expect_true (coro_mortal)) 1283 if (ecb_expect_true (coro_mortal))
1203 { 1284 {
1204 SvREFCNT_dec (coro_mortal); 1285 SvREFCNT_dec ((SV *)coro_mortal);
1205 coro_mortal = 0; 1286 coro_mortal = 0;
1206 } 1287 }
1207} 1288}
1208 1289
1209static int 1290static int
… …
1342 1423
1343 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 */
1344} 1425}
1345 1426
1346/* 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 */
1347static void NOINLINE 1428static void ecb_noinline
1348cctx_prepare (pTHX) 1429cctx_prepare (pTHX)
1349{ 1430{
1350 PL_top_env = &PL_start_env; 1431 PL_top_env = &PL_start_env;
1351 1432
1352 if (cctx_current->flags & CC_TRACE) 1433 if (cctx_current->flags & CC_TRACE)
… …
1363 slf_frame.prepare = slf_prepare_set_stacklevel; 1444 slf_frame.prepare = slf_prepare_set_stacklevel;
1364 slf_frame.check = slf_check_set_stacklevel; 1445 slf_frame.check = slf_check_set_stacklevel;
1365} 1446}
1366 1447
1367/* 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 */
1368INLINE void 1449ecb_inline void
1369transfer_tail (pTHX) 1450transfer_tail (pTHX)
1370{ 1451{
1371 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);
1372} 1465}
1373 1466
1374/* 1467/*
1375 * this is a _very_ stripped down perl interpreter ;) 1468 * this is a _very_ stripped down perl interpreter ;)
1376 */ 1469 */
… …
1405 */ 1498 */
1406 1499
1407 /* 1500 /*
1408 * 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
1409 * 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)
1410 * 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
1411 * bootstrap-time "top" top_env, as we cannot restore the "main" 1504 * doing in that case. YMMV.
1412 * coroutine as Coro has no such concept.
1413 * This actually isn't valid with the pthread backend, but OSes requiring
1414 * that backend are too broken to do it in a standards-compliant way.
1415 */ 1505 */
1416 PL_top_env = main_top_env; 1506 perlish_exit (aTHX);
1417 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1418 } 1507 }
1419} 1508}
1420 1509
1421static coro_cctx * 1510static coro_cctx *
1422cctx_new () 1511cctx_new (void)
1423{ 1512{
1424 coro_cctx *cctx; 1513 coro_cctx *cctx;
1425 1514
1426 ++cctx_count; 1515 ++cctx_count;
1427 New (0, cctx, 1, coro_cctx); 1516 New (0, cctx, 1, coro_cctx);
… …
1433 return cctx; 1522 return cctx;
1434} 1523}
1435 1524
1436/* create a new cctx only suitable as source */ 1525/* create a new cctx only suitable as source */
1437static coro_cctx * 1526static coro_cctx *
1438cctx_new_empty () 1527cctx_new_empty (void)
1439{ 1528{
1440 coro_cctx *cctx = cctx_new (); 1529 coro_cctx *cctx = cctx_new ();
1441 1530
1442 cctx->sptr = 0; 1531 cctx->stack.sptr = 0;
1443 coro_create (&cctx->cctx, 0, 0, 0, 0); 1532 coro_create (&cctx->cctx, 0, 0, 0, 0);
1444 1533
1445 return cctx; 1534 return cctx;
1446} 1535}
1447 1536
1448/* create a new cctx suitable as destination/running a perl interpreter */ 1537/* create a new cctx suitable as destination/running a perl interpreter */
1449static coro_cctx * 1538static coro_cctx *
1450cctx_new_run () 1539cctx_new_run (void)
1451{ 1540{
1452 coro_cctx *cctx = cctx_new (); 1541 coro_cctx *cctx = cctx_new ();
1453 void *stack_start;
1454 size_t stack_size;
1455 1542
1456#if HAVE_MMAP 1543 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1457 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1458 /* mmap supposedly does allocate-on-write for us */
1459 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1460
1461 if (cctx->sptr != (void *)-1)
1462 {
1463 #if CORO_STACKGUARD
1464 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1465 #endif
1466 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1467 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1468 cctx->flags |= CC_MAPPED;
1469 } 1544 {
1470 else
1471#endif
1472 {
1473 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1474 New (0, cctx->sptr, cctx_stacksize, long);
1475
1476 if (!cctx->sptr)
1477 {
1478 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1545 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1479 _exit (EXIT_FAILURE); 1546 _exit (EXIT_FAILURE);
1480 }
1481
1482 stack_start = cctx->sptr;
1483 stack_size = cctx->ssize;
1484 } 1547 }
1485 1548
1486 #if CORO_USE_VALGRIND
1487 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1488 #endif
1489
1490 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);
1491 1550
1492 return cctx; 1551 return cctx;
1493} 1552}
1494 1553
1495static void 1554static void
1496cctx_destroy (coro_cctx *cctx) 1555cctx_destroy (coro_cctx *cctx)
1497{ 1556{
1498 if (!cctx) 1557 if (!cctx)
1499 return; 1558 return;
1500 1559
1501 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1560 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1502 1561
1503 --cctx_count; 1562 --cctx_count;
1504 coro_destroy (&cctx->cctx); 1563 coro_destroy (&cctx->cctx);
1505 1564
1506 /* coro_transfer creates new, empty cctx's */ 1565 coro_stack_free (&cctx->stack);
1507 if (cctx->sptr)
1508 {
1509 #if CORO_USE_VALGRIND
1510 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1511 #endif
1512
1513#if HAVE_MMAP
1514 if (cctx->flags & CC_MAPPED)
1515 munmap (cctx->sptr, cctx->ssize);
1516 else
1517#endif
1518 Safefree (cctx->sptr);
1519 }
1520 1566
1521 Safefree (cctx); 1567 Safefree (cctx);
1522} 1568}
1523 1569
1524/* wether this cctx should be destructed */ 1570/* wether this cctx should be destructed */
1525#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))
1526 1572
1527static coro_cctx * 1573static coro_cctx *
1528cctx_get (pTHX) 1574cctx_get (pTHX)
1529{ 1575{
1530 while (expect_true (cctx_first)) 1576 while (ecb_expect_true (cctx_first))
1531 { 1577 {
1532 coro_cctx *cctx = cctx_first; 1578 coro_cctx *cctx = cctx_first;
1533 cctx_first = cctx->next; 1579 cctx_first = cctx->next;
1534 --cctx_idle; 1580 --cctx_idle;
1535 1581
1536 if (expect_true (!CCTX_EXPIRED (cctx))) 1582 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1537 return cctx; 1583 return cctx;
1538 1584
1539 cctx_destroy (cctx); 1585 cctx_destroy (cctx);
1540 } 1586 }
1541 1587
… …
1543} 1589}
1544 1590
1545static void 1591static void
1546cctx_put (coro_cctx *cctx) 1592cctx_put (coro_cctx *cctx)
1547{ 1593{
1548 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));
1549 1595
1550 /* free another cctx if overlimit */ 1596 /* free another cctx if overlimit */
1551 if (expect_false (cctx_idle >= cctx_max_idle)) 1597 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1552 { 1598 {
1553 coro_cctx *first = cctx_first; 1599 coro_cctx *first = cctx_first;
1554 cctx_first = first->next; 1600 cctx_first = first->next;
1555 --cctx_idle; 1601 --cctx_idle;
1556 1602
… …
1567static void 1613static void
1568transfer_check (pTHX_ struct coro *prev, struct coro *next) 1614transfer_check (pTHX_ struct coro *prev, struct coro *next)
1569{ 1615{
1570 /* TODO: throwing up here is considered harmful */ 1616 /* TODO: throwing up here is considered harmful */
1571 1617
1572 if (expect_true (prev != next)) 1618 if (ecb_expect_true (prev != next))
1573 { 1619 {
1574 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1620 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1575 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,");
1576 1622
1577 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1623 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1578 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,");
1579 1625
1580#if !PERL_VERSION_ATLEAST (5,10,0) 1626#if !PERL_VERSION_ATLEAST (5,10,0)
1581 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1627 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1582 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,");
1583#endif 1629#endif
1584 } 1630 }
1585} 1631}
1586 1632
1587/* always use the TRANSFER macro */ 1633/* always use the TRANSFER macro */
1588static void NOINLINE /* noinline so we have a fixed stackframe */ 1634static void ecb_noinline /* noinline so we have a fixed stackframe */
1589transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1635transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1590{ 1636{
1591 dSTACKLEVEL; 1637 dSTACKLEVEL;
1592 1638
1593 /* sometimes transfer is only called to set idle_sp */ 1639 /* sometimes transfer is only called to set idle_sp */
1594 if (expect_false (!prev)) 1640 if (ecb_expect_false (!prev))
1595 { 1641 {
1596 cctx_current->idle_sp = STACKLEVEL; 1642 cctx_current->idle_sp = STACKLEVEL;
1597 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 */
1598 } 1644 }
1599 else if (expect_true (prev != next)) 1645 else if (ecb_expect_true (prev != next))
1600 { 1646 {
1601 coro_cctx *cctx_prev; 1647 coro_cctx *cctx_prev;
1602 1648
1603 if (expect_false (prev->flags & CF_NEW)) 1649 if (ecb_expect_false (prev->flags & CF_NEW))
1604 { 1650 {
1605 /* create a new empty/source context */ 1651 /* create a new empty/source context */
1606 prev->flags &= ~CF_NEW; 1652 prev->flags &= ~CF_NEW;
1607 prev->flags |= CF_RUNNING; 1653 prev->flags |= CF_RUNNING;
1608 } 1654 }
… …
1611 next->flags |= CF_RUNNING; 1657 next->flags |= CF_RUNNING;
1612 1658
1613 /* first get rid of the old state */ 1659 /* first get rid of the old state */
1614 save_perl (aTHX_ prev); 1660 save_perl (aTHX_ prev);
1615 1661
1616 if (expect_false (next->flags & CF_NEW)) 1662 if (ecb_expect_false (next->flags & CF_NEW))
1617 { 1663 {
1618 /* need to start coroutine */ 1664 /* need to start coroutine */
1619 next->flags &= ~CF_NEW; 1665 next->flags &= ~CF_NEW;
1620 /* setup coroutine call */ 1666 /* setup coroutine call */
1621 init_perl (aTHX_ next); 1667 init_perl (aTHX_ next);
1622 } 1668 }
1623 else 1669 else
1624 load_perl (aTHX_ next); 1670 load_perl (aTHX_ next);
1625 1671
1626 /* possibly untie and reuse the cctx */ 1672 /* possibly untie and reuse the cctx */
1627 if (expect_true ( 1673 if (ecb_expect_true (
1628 cctx_current->idle_sp == STACKLEVEL 1674 cctx_current->idle_sp == STACKLEVEL
1629 && !(cctx_current->flags & CC_TRACE) 1675 && !(cctx_current->flags & CC_TRACE)
1630 && !force_cctx 1676 && !force_cctx
1631 )) 1677 ))
1632 { 1678 {
1633 /* 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 */
1634 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));
1635 1681
1636 /* 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. */
1637 /* 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 */
1638 if (expect_false (CCTX_EXPIRED (cctx_current))) 1684 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1639 if (expect_true (!next->cctx)) 1685 if (ecb_expect_true (!next->cctx))
1640 next->cctx = cctx_get (aTHX); 1686 next->cctx = cctx_get (aTHX);
1641 1687
1642 cctx_put (cctx_current); 1688 cctx_put (cctx_current);
1643 } 1689 }
1644 else 1690 else
1645 prev->cctx = cctx_current; 1691 prev->cctx = cctx_current;
1646 1692
1647 ++next->usecount; 1693 ++next->usecount;
1648 1694
1649 cctx_prev = cctx_current; 1695 cctx_prev = cctx_current;
1650 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1696 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1651 1697
1652 next->cctx = 0; 1698 next->cctx = 0;
1653 1699
1654 if (expect_false (cctx_prev != cctx_current)) 1700 if (ecb_expect_false (cctx_prev != cctx_current))
1655 { 1701 {
1656 cctx_prev->top_env = PL_top_env; 1702 cctx_prev->top_env = PL_top_env;
1657 PL_top_env = cctx_current->top_env; 1703 PL_top_env = cctx_current->top_env;
1658 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1704 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1659 } 1705 }
… …
1665#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))
1666#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1712#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1667 1713
1668/** high level stuff ********************************************************/ 1714/** high level stuff ********************************************************/
1669 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 */
1670static int 1718static void
1719coro_call_on_destroy (pTHX_ struct coro *coro);
1720
1721static void
1671coro_state_destroy (pTHX_ struct coro *coro) 1722coro_state_destroy (pTHX_ struct coro *coro)
1672{ 1723{
1673 if (coro->flags & CF_DESTROYED) 1724 if (coro->flags & CF_ZOMBIE)
1674 return 0; 1725 return;
1675 1726
1676 if (coro->on_destroy && !PL_dirty)
1677 coro->on_destroy (aTHX_ coro); 1727 slf_destroy (aTHX_ coro);
1678 1728
1679 coro->flags |= CF_DESTROYED; 1729 coro->flags |= CF_ZOMBIE;
1680 1730
1681 if (coro->flags & CF_READY) 1731 if (coro->flags & CF_READY)
1682 { 1732 {
1683 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1733 /* reduce nready, as destroying a ready coro effectively unreadies it */
1684 /* alternative: look through all ready queues and remove the coro */ 1734 /* alternative: look through all ready queues and remove the coro */
1685 --coro_nready; 1735 --coro_nready;
1686 } 1736 }
1687 else 1737 else
1688 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;
1689 1743
1690 if (coro->mainstack 1744 if (coro->mainstack
1691 && coro->mainstack != main_mainstack 1745 && coro->mainstack != main_mainstack
1692 && coro->slot 1746 && coro->slot
1693 && !PL_dirty) 1747 && !PL_dirty)
1694 destroy_perl (aTHX_ coro); 1748 destroy_perl (aTHX_ coro);
1695 1749
1696 if (coro->next) coro->next->prev = coro->prev;
1697 if (coro->prev) coro->prev->next = coro->next;
1698 if (coro == coro_first) coro_first = coro->next;
1699
1700 cctx_destroy (coro->cctx); 1750 cctx_destroy (coro->cctx);
1701 SvREFCNT_dec (coro->startcv); 1751 SvREFCNT_dec (coro->startcv);
1702 SvREFCNT_dec (coro->args); 1752 SvREFCNT_dec (coro->args);
1703 SvREFCNT_dec (coro->swap_sv); 1753 SvREFCNT_dec (coro->swap_sv);
1704 SvREFCNT_dec (CORO_THROW); 1754 SvREFCNT_dec (CORO_THROW);
1705 1755
1706 return 1; 1756 coro_call_on_destroy (aTHX_ coro);
1757
1758 /* more destruction mayhem in coro_state_free */
1707} 1759}
1708 1760
1709static int 1761static int
1710coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1762coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1711{ 1763{
1712 struct coro *coro = (struct coro *)mg->mg_ptr; 1764 struct coro *coro = (struct coro *)mg->mg_ptr;
1713 mg->mg_ptr = 0; 1765 mg->mg_ptr = 0;
1714 1766
1715 coro->hv = 0;
1716
1717 if (--coro->refcnt < 0)
1718 {
1719 coro_state_destroy (aTHX_ coro); 1767 coro_state_destroy (aTHX_ coro);
1768 SvREFCNT_dec (coro->on_destroy);
1769 SvREFCNT_dec (coro->status);
1770
1720 Safefree (coro); 1771 Safefree (coro);
1721 }
1722 1772
1723 return 0; 1773 return 0;
1724} 1774}
1725 1775
1726static int 1776static int ecb_cold
1727coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1777coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1728{ 1778{
1729 struct coro *coro = (struct coro *)mg->mg_ptr; 1779 /* called when perl clones the current process the slow way (windows process emulation) */
1730 1780 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1731 ++coro->refcnt; 1781 mg->mg_ptr = 0;
1782 mg->mg_virtual = 0;
1732 1783
1733 return 0; 1784 return 0;
1734} 1785}
1735 1786
1736static MGVTBL coro_state_vtbl = { 1787static MGVTBL coro_state_vtbl = {
… …
1761 TRANSFER (ta, 1); 1812 TRANSFER (ta, 1);
1762} 1813}
1763 1814
1764/** Coro ********************************************************************/ 1815/** Coro ********************************************************************/
1765 1816
1766INLINE void 1817ecb_inline void
1767coro_enq (pTHX_ struct coro *coro) 1818coro_enq (pTHX_ struct coro *coro)
1768{ 1819{
1769 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1820 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1770 1821
1771 SvREFCNT_inc_NN (coro->hv); 1822 SvREFCNT_inc_NN (coro->hv);
… …
1773 coro->next_ready = 0; 1824 coro->next_ready = 0;
1774 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1825 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1775 ready [1] = coro; 1826 ready [1] = coro;
1776} 1827}
1777 1828
1778INLINE struct coro * 1829ecb_inline struct coro *
1779coro_deq (pTHX) 1830coro_deq (pTHX)
1780{ 1831{
1781 int prio; 1832 int prio;
1782 1833
1783 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1834 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1836{ 1887{
1837 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1888 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1838} 1889}
1839 1890
1840/* expects to own a reference to next->hv */ 1891/* expects to own a reference to next->hv */
1841INLINE void 1892ecb_inline void
1842prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1893prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1843{ 1894{
1844 SV *prev_sv = SvRV (coro_current); 1895 SV *prev_sv = SvRV (coro_current);
1845 1896
1846 ta->prev = SvSTATE_hv (prev_sv); 1897 ta->prev = SvSTATE_hv (prev_sv);
… …
1859{ 1910{
1860 for (;;) 1911 for (;;)
1861 { 1912 {
1862 struct coro *next = coro_deq (aTHX); 1913 struct coro *next = coro_deq (aTHX);
1863 1914
1864 if (expect_true (next)) 1915 if (ecb_expect_true (next))
1865 { 1916 {
1866 /* cannot transfer to destroyed coros, skip and look for next */ 1917 /* cannot transfer to destroyed coros, skip and look for next */
1867 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1918 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1868 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 */
1869 else 1920 else
1870 { 1921 {
1871 next->flags &= ~CF_READY; 1922 next->flags &= ~CF_READY;
1872 --coro_nready; 1923 --coro_nready;
… …
1880 /* nothing to schedule: call the idle handler */ 1931 /* nothing to schedule: call the idle handler */
1881 if (SvROK (sv_idle) 1932 if (SvROK (sv_idle)
1882 && SvOBJECT (SvRV (sv_idle))) 1933 && SvOBJECT (SvRV (sv_idle)))
1883 { 1934 {
1884 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);
1885 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 }
1886 1954
1887 ++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 */
1888 api_ready (aTHX_ SvRV (sv_idle)); 1956 api_ready (aTHX_ SvRV (sv_idle));
1889 --coro_nready; 1957 --coro_nready;
1890 } 1958 }
… …
1905 } 1973 }
1906 } 1974 }
1907 } 1975 }
1908} 1976}
1909 1977
1910INLINE void 1978ecb_inline void
1911prepare_cede (pTHX_ struct coro_transfer_args *ta) 1979prepare_cede (pTHX_ struct coro_transfer_args *ta)
1912{ 1980{
1913 api_ready (aTHX_ coro_current); 1981 api_ready (aTHX_ coro_current);
1914 prepare_schedule (aTHX_ ta); 1982 prepare_schedule (aTHX_ ta);
1915} 1983}
1916 1984
1917INLINE void 1985ecb_inline void
1918prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1986prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1919{ 1987{
1920 SV *prev = SvRV (coro_current); 1988 SV *prev = SvRV (coro_current);
1921 1989
1922 if (coro_nready) 1990 if (coro_nready)
… …
1952{ 2020{
1953 struct coro_transfer_args ta; 2021 struct coro_transfer_args ta;
1954 2022
1955 prepare_cede (aTHX_ &ta); 2023 prepare_cede (aTHX_ &ta);
1956 2024
1957 if (expect_true (ta.prev != ta.next)) 2025 if (ecb_expect_true (ta.prev != ta.next))
1958 { 2026 {
1959 TRANSFER (ta, 1); 2027 TRANSFER (ta, 1);
1960 return 1; 2028 return 1;
1961 } 2029 }
1962 else 2030 else
… …
2005 coro->slot->runops = RUNOPS_DEFAULT; 2073 coro->slot->runops = RUNOPS_DEFAULT;
2006 } 2074 }
2007} 2075}
2008 2076
2009static 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
2010coro_call_on_destroy (pTHX_ struct coro *coro) 2154coro_call_on_destroy (pTHX_ struct coro *coro)
2011{ 2155{
2012 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2156 AV *od = coro->on_destroy;
2013 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2014 2157
2015 if (on_destroyp) 2158 if (!od)
2016 { 2159 return;
2017 AV *on_destroy = (AV *)SvRV (*on_destroyp);
2018 2160
2161 coro->on_destroy = 0;
2162 sv_2mortal ((SV *)od);
2163
2019 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
2020 { 2172 {
2021 dSP; /* don't disturb outer sp */ 2173 dSP; /* don't disturb outer sp */
2022 SV *cb = av_pop (on_destroy);
2023
2024 PUSHMARK (SP); 2174 PUSHMARK (SP);
2025 2175
2026 if (statusp) 2176 if (coro->status)
2027 { 2177 {
2028 int i; 2178 PUTBACK;
2029 AV *status = (AV *)SvRV (*statusp); 2179 coro_push_av (aTHX_ coro->status, G_ARRAY);
2030 EXTEND (SP, AvFILLp (status) + 1); 2180 SPAGAIN;
2031
2032 for (i = 0; i <= AvFILLp (status); ++i)
2033 PUSHs (AvARRAY (status)[i]);
2034 } 2181 }
2035 2182
2036 PUTBACK; 2183 PUTBACK;
2037 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2184 call_sv (cb, G_VOID | G_DISCARD);
2038 } 2185 }
2039 } 2186 }
2040} 2187}
2041 2188
2042static void 2189static void
2043slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2190coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2044{ 2191{
2045 int i; 2192 AV *av;
2046 HV *hv = (HV *)SvRV (coro_current); 2193
2047 AV *av = newAV (); 2194 if (coro->status)
2195 {
2196 av = coro->status;
2197 av_clear (av);
2198 }
2199 else
2200 av = coro->status = newAV ();
2048 2201
2049 /* items are actually not so common, so optimise for this case */ 2202 /* items are actually not so common, so optimise for this case */
2050 if (items) 2203 if (items)
2051 { 2204 {
2205 int i;
2206
2052 av_extend (av, items - 1); 2207 av_extend (av, items - 1);
2053 2208
2054 for (i = 0; i < items; ++i) 2209 for (i = 0; i < items; ++i)
2055 av_push (av, SvREFCNT_inc_NN (arg [i])); 2210 av_push (av, SvREFCNT_inc_NN (arg [i]));
2056 } 2211 }
2212}
2057 2213
2058 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2214static void
2059 2215slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2216{
2060 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 */
2061 api_ready (aTHX_ sv_manager); 2218 api_ready (aTHX_ sv_manager);
2062 2219
2063 frame->prepare = prepare_schedule; 2220 frame->prepare = prepare_schedule;
2064 frame->check = slf_check_repeat; 2221 frame->check = slf_check_repeat;
2065 2222
2066 /* as a minor optimisation, we could unwind all stacks here */ 2223 /* as a minor optimisation, we could unwind all stacks here */
2067 /* 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 */
2068 /*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;
2069} 2332}
2070 2333
2071/*****************************************************************************/ 2334/*****************************************************************************/
2072/* async pool handler */ 2335/* async pool handler */
2073 2336
… …
2104slf_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)
2105{ 2368{
2106 HV *hv = (HV *)SvRV (coro_current); 2369 HV *hv = (HV *)SvRV (coro_current);
2107 struct coro *coro = SvSTATE_hv ((SV *)hv); 2370 struct coro *coro = SvSTATE_hv ((SV *)hv);
2108 2371
2109 if (expect_true (coro->saved_deffh)) 2372 if (ecb_expect_true (coro->saved_deffh))
2110 { 2373 {
2111 /* subsequent iteration */ 2374 /* subsequent iteration */
2112 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2375 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2113 coro->saved_deffh = 0; 2376 coro->saved_deffh = 0;
2114 2377
2115 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2378 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2116 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2379 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2117 { 2380 {
2118 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2381 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2119 coro->invoke_av = newAV (); 2382 return;
2120
2121 frame->prepare = prepare_nop;
2122 } 2383 }
2123 else 2384 else
2124 { 2385 {
2125 av_clear (GvAV (PL_defgv)); 2386 av_clear (GvAV (PL_defgv));
2126 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);
… …
2176 2437
2177static int 2438static int
2178slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2439slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2179{ 2440{
2180 SV *data = (SV *)frame->data; 2441 SV *data = (SV *)frame->data;
2181 2442
2182 if (CORO_THROW) 2443 if (CORO_THROW)
2183 return 0; 2444 return 0;
2184 2445
2185 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2446 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2186 return 1; 2447 return 1;
… …
2222 cb = sv_2mortal (coro->rouse_cb); 2483 cb = sv_2mortal (coro->rouse_cb);
2223 coro->rouse_cb = 0; 2484 coro->rouse_cb = 0;
2224 } 2485 }
2225 2486
2226 if (!SvROK (cb) 2487 if (!SvROK (cb)
2227 || SvTYPE (SvRV (cb)) != SVt_PVCV 2488 || SvTYPE (SvRV (cb)) != SVt_PVCV
2228 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2489 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2229 croak ("Coro::rouse_wait called with illegal callback argument,"); 2490 croak ("Coro::rouse_wait called with illegal callback argument,");
2230 2491
2231 { 2492 {
2232 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2493 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2349static void 2610static void
2350slf_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)
2351{ 2612{
2352 frame->prepare = prepare_cede_notself; 2613 frame->prepare = prepare_cede_notself;
2353 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);
2354} 2634}
2355 2635
2356/* 2636/*
2357 * these not obviously related functions are all rolled into one 2637 * these not obviously related functions are all rolled into one
2358 * 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
… …
2365 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 */
2366 2646
2367 /* 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 */
2368 /* the latter happens when a new coro has been started */ 2648 /* the latter happens when a new coro has been started */
2369 /* or when a new cctx was attached to an existing coroutine */ 2649 /* or when a new cctx was attached to an existing coroutine */
2370 if (expect_true (!slf_frame.prepare)) 2650 if (ecb_expect_true (!slf_frame.prepare))
2371 { 2651 {
2372 /* first iteration */ 2652 /* first iteration */
2373 dSP; 2653 dSP;
2374 SV **arg = PL_stack_base + TOPMARK + 1; 2654 SV **arg = PL_stack_base + TOPMARK + 1;
2375 int items = SP - arg; /* args without function object */ 2655 int items = SP - arg; /* args without function object */
… …
2416 while (slf_frame.check (aTHX_ &slf_frame)); 2696 while (slf_frame.check (aTHX_ &slf_frame));
2417 2697
2418 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 */
2419 2699
2420 /* exception handling */ 2700 /* exception handling */
2421 if (expect_false (CORO_THROW)) 2701 if (ecb_expect_false (CORO_THROW))
2422 { 2702 {
2423 SV *exception = sv_2mortal (CORO_THROW); 2703 SV *exception = sv_2mortal (CORO_THROW);
2424 2704
2425 CORO_THROW = 0; 2705 CORO_THROW = 0;
2426 sv_setsv (ERRSV, exception); 2706 sv_setsv (ERRSV, exception);
2427 croak (0); 2707 croak (0);
2428 } 2708 }
2429 2709
2430 /* return value handling - mostly like entersub */ 2710 /* return value handling - mostly like entersub */
2431 /* make sure we put something on the stack in scalar context */ 2711 /* make sure we put something on the stack in scalar context */
2432 if (GIMME_V == G_SCALAR) 2712 if (GIMME_V == G_SCALAR
2713 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2433 { 2714 {
2434 dSP; 2715 dSP;
2435 SV **bot = PL_stack_base + checkmark; 2716 SV **bot = PL_stack_base + checkmark;
2436 2717
2437 if (sp == bot) /* too few, push undef */ 2718 if (sp == bot) /* too few, push undef */
2438 bot [1] = &PL_sv_undef; 2719 bot [1] = &PL_sv_undef;
2439 else if (sp != bot + 1) /* too many, take last one */ 2720 else /* too many, take last one */
2440 bot [1] = *sp; 2721 bot [1] = *sp;
2441 2722
2442 SP = bot + 1; 2723 SP = bot + 1;
2443 2724
2444 PUTBACK; 2725 PUTBACK;
… …
2551{ 2832{
2552 PerlIOBuf base; 2833 PerlIOBuf base;
2553 NV next, every; 2834 NV next, every;
2554} PerlIOCede; 2835} PerlIOCede;
2555 2836
2556static IV 2837static IV ecb_cold
2557PerlIOCede_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)
2558{ 2839{
2559 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2840 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2560 2841
2561 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2842 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2562 self->next = nvtime () + self->every; 2843 self->next = nvtime () + self->every;
2563 2844
2564 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2845 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2565} 2846}
2566 2847
2567static SV * 2848static SV * ecb_cold
2568PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2849PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2569{ 2850{
2570 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2851 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2571 2852
2572 return newSVnv (self->every); 2853 return newSVnv (self->every);
… …
2684 SvREFCNT_dec (cb); 2965 SvREFCNT_dec (cb);
2685 } 2966 }
2686} 2967}
2687 2968
2688static void 2969static void
2689coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2970coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2690{ 2971{
2691 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2972 /* call $sem->adjust (0) to possibly wake up some other waiters */
2692 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2973 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2693} 2974}
2694 2975
2695static int 2976static int
2696slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2977slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2697{ 2978{
2698 AV *av = (AV *)frame->data; 2979 AV *av = (AV *)frame->data;
2699 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;
2700 2984
2701 /* 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 */
2702 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
2703 return 0; 2991 return 0;
2992 }
2704 else if (SvIVX (count_sv) > 0) 2993 else if (SvIVX (count_sv) > 0)
2705 { 2994 {
2706 SvSTATE_current->on_destroy = 0;
2707
2708 if (acquire) 2995 if (acquire)
2709 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2996 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2710 else 2997 else
2711 coro_semaphore_adjust (aTHX_ av, 0); 2998 coro_semaphore_adjust (aTHX_ av, 0);
2712 2999
… …
2716 { 3003 {
2717 int i; 3004 int i;
2718 /* 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 */
2719 /* 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 */
2720 /* this avoids some degenerate memory usage cases */ 3007 /* this avoids some degenerate memory usage cases */
2721 3008 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2722 for (i = 1; i <= AvFILLp (av); ++i)
2723 if (AvARRAY (av)[i] == SvRV (coro_current)) 3009 if (AvARRAY (av)[i] == coro_hv)
2724 return 1; 3010 return 1;
2725 3011
2726 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3012 av_push (av, SvREFCNT_inc (coro_hv));
2727 return 1; 3013 return 1;
2728 } 3014 }
2729} 3015}
2730 3016
2731static int 3017static int
… …
2754 { 3040 {
2755 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3041 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2756 3042
2757 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3043 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2758 frame->prepare = prepare_schedule; 3044 frame->prepare = prepare_schedule;
2759
2760 /* to avoid race conditions when a woken-up coro gets terminated */ 3045 /* to avoid race conditions when a woken-up coro gets terminated */
2761 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3046 /* we arrange for a temporary on_destroy that calls adjust (0) */
2762 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3047 frame->destroy = coro_semaphore_destroy;
2763 } 3048 }
2764} 3049}
2765 3050
2766static void 3051static void
2767slf_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)
… …
2936 /* it quickly returns */ 3221 /* it quickly returns */
2937 if (CORO_THROW) 3222 if (CORO_THROW)
2938 return 0; 3223 return 0;
2939 3224
2940 /* one element that is an RV? repeat! */ 3225 /* one element that is an RV? repeat! */
2941 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3226 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2942 return 1; 3227 return 1;
2943 3228
2944 /* restore status */ 3229 /* restore status */
2945 { 3230 {
2946 SV *data_sv = av_pop (state); 3231 SV *data_sv = av_pop (state);
… …
2985 dSP; 3270 dSP;
2986 3271
2987 static SV *prio_cv; 3272 static SV *prio_cv;
2988 static SV *prio_sv; 3273 static SV *prio_sv;
2989 3274
2990 if (expect_false (!prio_cv)) 3275 if (ecb_expect_false (!prio_cv))
2991 { 3276 {
2992 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3277 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2993 prio_sv = newSViv (0); 3278 prio_sv = newSViv (0);
2994 } 3279 }
2995 3280
… …
3101 } 3386 }
3102 3387
3103 return coro_sv; 3388 return coro_sv;
3104} 3389}
3105 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
3106MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3458MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
3107 3459
3108PROTOTYPES: DISABLE 3460PROTOTYPES: DISABLE
3109 3461
3110BOOT: 3462BOOT:
3111{ 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"
3112#ifdef USE_ITHREADS 3466#ifdef USE_ITHREADS
3113# if CORO_PTHREAD 3467# if CORO_PTHREAD
3114 coro_thx = PERL_GET_CONTEXT; 3468 coro_thx = PERL_GET_CONTEXT;
3115# endif 3469# endif
3116#endif 3470#endif
3117 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;
3118 3477
3119 cctx_current = cctx_new_empty (); 3478 cctx_current = cctx_new_empty ();
3120 3479
3121 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3480 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
3122 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3481 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
3165 coroapi.prepare_cede_notself = prepare_cede_notself; 3524 coroapi.prepare_cede_notself = prepare_cede_notself;
3166 3525
3167 time_init (aTHX); 3526 time_init (aTHX);
3168 3527
3169 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
3170} 3534}
3171 3535
3172SV * 3536SV *
3173new (SV *klass, ...) 3537new (SV *klass, ...)
3174 ALIAS: 3538 ALIAS:
… …
3181void 3545void
3182transfer (...) 3546transfer (...)
3183 PROTOTYPE: $$ 3547 PROTOTYPE: $$
3184 CODE: 3548 CODE:
3185 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3549 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3186
3187bool
3188_destroy (SV *coro_sv)
3189 CODE:
3190 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3191 OUTPUT:
3192 RETVAL
3193
3194void
3195_exit (int code)
3196 PROTOTYPE: $
3197 CODE:
3198 _exit (code);
3199 3550
3200SV * 3551SV *
3201clone (Coro::State coro) 3552clone (Coro::State coro)
3202 CODE: 3553 CODE:
3203{ 3554{
… …
3258void 3609void
3259list () 3610list ()
3260 PROTOTYPE: 3611 PROTOTYPE:
3261 PPCODE: 3612 PPCODE:
3262{ 3613{
3263 struct coro *coro; 3614 struct coro *coro;
3264 for (coro = coro_first; coro; coro = coro->next) 3615 for (coro = coro_first; coro; coro = coro->next)
3265 if (coro->hv) 3616 if (coro->hv)
3266 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3617 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3267} 3618}
3268 3619
… …
3273 CODE: 3624 CODE:
3274{ 3625{
3275 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3626 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3276 { 3627 {
3277 struct coro *current = SvSTATE_current; 3628 struct coro *current = SvSTATE_current;
3629 struct CoroSLF slf_save;
3278 3630
3279 if (current != coro) 3631 if (current != coro)
3280 { 3632 {
3281 PUTBACK; 3633 PUTBACK;
3282 save_perl (aTHX_ current); 3634 save_perl (aTHX_ current);
3283 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;
3284 SPAGAIN; 3645 SPAGAIN;
3285 } 3646 }
3286 3647
3287 PUSHSTACK; 3648 PUSHSTACK;
3288 3649
… …
3298 SPAGAIN; 3659 SPAGAIN;
3299 3660
3300 if (current != coro) 3661 if (current != coro)
3301 { 3662 {
3302 PUTBACK; 3663 PUTBACK;
3664 slf_frame = slf_save;
3303 save_perl (aTHX_ coro); 3665 save_perl (aTHX_ coro);
3304 load_perl (aTHX_ current); 3666 load_perl (aTHX_ current);
3305 SPAGAIN; 3667 SPAGAIN;
3306 } 3668 }
3307 } 3669 }
… …
3312 PROTOTYPE: $ 3674 PROTOTYPE: $
3313 ALIAS: 3675 ALIAS:
3314 is_ready = CF_READY 3676 is_ready = CF_READY
3315 is_running = CF_RUNNING 3677 is_running = CF_RUNNING
3316 is_new = CF_NEW 3678 is_new = CF_NEW
3317 is_destroyed = CF_DESTROYED 3679 is_destroyed = CF_ZOMBIE
3680 is_zombie = CF_ZOMBIE
3318 is_suspended = CF_SUSPENDED 3681 is_suspended = CF_SUSPENDED
3319 CODE: 3682 CODE:
3320 RETVAL = boolSV (coro->flags & ix); 3683 RETVAL = boolSV (coro->flags & ix);
3321 OUTPUT: 3684 OUTPUT:
3322 RETVAL 3685 RETVAL
3323 3686
3324void 3687void
3325throw (Coro::State self, SV *exception = &PL_sv_undef) 3688throw (SV *self, SV *exception = &PL_sv_undef)
3326 PROTOTYPE: $;$ 3689 PROTOTYPE: $;$
3327 CODE: 3690 CODE:
3328{ 3691{
3692 struct coro *coro = SvSTATE (self);
3329 struct coro *current = SvSTATE_current; 3693 struct coro *current = SvSTATE_current;
3330 SV **exceptionp = self == current ? &CORO_THROW : &self->except; 3694 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3331 SvREFCNT_dec (*exceptionp); 3695 SvREFCNT_dec (*exceptionp);
3332 SvGETMAGIC (exception); 3696 SvGETMAGIC (exception);
3333 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; 3697 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3698
3699 api_ready (aTHX_ self);
3334} 3700}
3335 3701
3336void 3702void
3337api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3703api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3338 PROTOTYPE: $;$ 3704 PROTOTYPE: $;$
… …
3393 3759
3394void 3760void
3395cancel (Coro::State self) 3761cancel (Coro::State self)
3396 CODE: 3762 CODE:
3397 coro_state_destroy (aTHX_ self); 3763 coro_state_destroy (aTHX_ self);
3398 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3399
3400 3764
3401SV * 3765SV *
3402enable_times (int enabled = enable_times) 3766enable_times (int enabled = enable_times)
3403 CODE: 3767 CODE:
3404{ 3768{
… …
3417 3781
3418void 3782void
3419times (Coro::State self) 3783times (Coro::State self)
3420 PPCODE: 3784 PPCODE:
3421{ 3785{
3422 struct coro *current = SvSTATE (coro_current); 3786 struct coro *current = SvSTATE (coro_current);
3423 3787
3424 if (expect_false (current == self)) 3788 if (ecb_expect_false (current == self))
3425 { 3789 {
3426 coro_times_update (); 3790 coro_times_update ();
3427 coro_times_add (SvSTATE (coro_current)); 3791 coro_times_add (SvSTATE (coro_current));
3428 } 3792 }
3429 3793
3430 EXTEND (SP, 2); 3794 EXTEND (SP, 2);
3431 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)));
3432 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)));
3433 3797
3434 if (expect_false (current == self)) 3798 if (ecb_expect_false (current == self))
3435 coro_times_sub (SvSTATE (coro_current)); 3799 coro_times_sub (SvSTATE (coro_current));
3436} 3800}
3437 3801
3438void 3802void
3439swap_sv (Coro::State coro, SV *sv, SV *swapsv) 3803swap_sv (Coro::State coro, SV *sv, SV *swapsv)
… …
3460BOOT: 3824BOOT:
3461{ 3825{
3462 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3826 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3463 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3827 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3464 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3828 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3465 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3466 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);
3467 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3830 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3468 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3831 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3469 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3832 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3470 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3833 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3471 3834
3472 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);
3473 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3836 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3474 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);
3475 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 */
3476 3839
3477 coro_stash = gv_stashpv ("Coro", TRUE); 3840 coro_stash = gv_stashpv ("Coro", TRUE);
3478 3841
3479 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3842 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3480 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3843 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3481 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3844 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3509 api_ready (aTHX_ RETVAL); 3872 api_ready (aTHX_ RETVAL);
3510 OUTPUT: 3873 OUTPUT:
3511 RETVAL 3874 RETVAL
3512 3875
3513void 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
3514terminate (...) 3893terminate (...)
3515 CODE: 3894 CODE:
3516 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
3517 3905
3518void 3906void
3519schedule (...) 3907schedule (...)
3520 CODE: 3908 CODE:
3521 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3909 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3678 on_leave = 1 4066 on_leave = 1
3679 PROTOTYPE: & 4067 PROTOTYPE: &
3680 CODE: 4068 CODE:
3681{ 4069{
3682 struct coro *coro = SvSTATE_current; 4070 struct coro *coro = SvSTATE_current;
3683 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4071 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3684 4072
3685 block = s_get_cv_croak (block); 4073 block = s_get_cv_croak (block);
3686 4074
3687 if (!*avp) 4075 if (!*avp)
3688 *avp = newAV (); 4076 *avp = newAV ();
… …
3708 4096
3709SV * 4097SV *
3710new (SV *klass, SV *count = 0) 4098new (SV *klass, SV *count = 0)
3711 CODE: 4099 CODE:
3712{ 4100{
3713 int semcnt = 1; 4101 int semcnt = 1;
3714 4102
3715 if (count) 4103 if (count)
3716 { 4104 {
3717 SvGETMAGIC (count); 4105 SvGETMAGIC (count);
3718 4106
… …
3778 XSRETURN_NO; 4166 XSRETURN_NO;
3779} 4167}
3780 4168
3781void 4169void
3782waiters (SV *self) 4170waiters (SV *self)
3783 PPCODE: 4171 PPCODE:
3784{ 4172{
3785 AV *av = (AV *)SvRV (self); 4173 AV *av = (AV *)SvRV (self);
3786 int wcount = AvFILLp (av) + 1 - 1; 4174 int wcount = AvFILLp (av) + 1 - 1;
3787 4175
3788 if (GIMME_V == G_SCALAR) 4176 if (GIMME_V == G_SCALAR)
… …
3797} 4185}
3798 4186
3799MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4187MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3800 4188
3801void 4189void
3802_may_delete (SV *sem, int count, int extra_refs) 4190_may_delete (SV *sem, int count, unsigned int extra_refs)
3803 PPCODE: 4191 PPCODE:
3804{ 4192{
3805 AV *av = (AV *)SvRV (sem); 4193 AV *av = (AV *)SvRV (sem);
3806 4194
3807 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4195 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3808 && AvFILLp (av) == 0 /* no waiters, just count */ 4196 && AvFILLp (av) == 0 /* no waiters, just count */
3809 && SvIV (AvARRAY (av)[0]) == count) 4197 && SvIV (AvARRAY (av)[0]) == count)
3810 XSRETURN_YES; 4198 XSRETURN_YES;
… …
3831 4219
3832void 4220void
3833broadcast (SV *self) 4221broadcast (SV *self)
3834 CODE: 4222 CODE:
3835{ 4223{
3836 AV *av = (AV *)SvRV (self); 4224 AV *av = (AV *)SvRV (self);
3837 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4225 coro_signal_wake (aTHX_ av, AvFILLp (av));
3838} 4226}
3839 4227
3840void 4228void
3841send (SV *self) 4229send (SV *self)
… …
3849 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4237 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3850} 4238}
3851 4239
3852IV 4240IV
3853awaited (SV *self) 4241awaited (SV *self)
3854 CODE: 4242 CODE:
3855 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4243 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3856 OUTPUT: 4244 OUTPUT:
3857 RETVAL 4245 RETVAL
3858 4246
3859 4247
… …
3864 4252
3865void 4253void
3866_schedule (...) 4254_schedule (...)
3867 CODE: 4255 CODE:
3868{ 4256{
3869 static int incede; 4257 static int incede;
3870 4258
3871 api_cede_notself (aTHX); 4259 api_cede_notself (aTHX);
3872 4260
3873 ++incede; 4261 ++incede;
3874 while (coro_nready >= incede && api_cede (aTHX)) 4262 while (coro_nready >= incede && api_cede (aTHX))
… …
3918 { 4306 {
3919 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4307 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3920 coro_old_pp_sselect = 0; 4308 coro_old_pp_sselect = 0;
3921 } 4309 }
3922 4310
4311MODULE = Coro::State PACKAGE = Coro::Util
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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