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Comparing Coro/Coro/State.xs (file contents):
Revision 1.358 by root, Mon Jun 29 04:30:25 2009 UTC vs.
Revision 1.409 by root, Sun Jun 12 04:29:15 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
17#include "ecb.h"
12 18
19#include <stddef.h>
13#include <stdio.h> 20#include <stdio.h>
14#include <errno.h> 21#include <errno.h>
15#include <assert.h> 22#include <assert.h>
16 23
17#ifdef WIN32 24#ifndef SVs_PADSTALE
25# define SVs_PADSTALE 0
26#endif
27
28#if defined(_WIN32)
29# undef HAS_GETTIMEOFDAY
18# undef setjmp 30# undef setjmp
19# undef longjmp 31# undef longjmp
20# undef _exit 32# undef _exit
21# define setjmp _setjmp /* deep magic */ 33# define setjmp _setjmp /* deep magic */
22#else 34#else
… …
51#endif 63#endif
52 64
53/* the maximum number of idle cctx that will be pooled */ 65/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 66static int cctx_max_idle = 4;
55 67
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
109
110/* 5.8.7 */
111#ifndef SvRV_set
112# define SvRV_set(s,v) SvRV(s) = (v)
113#endif
114
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 68#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 69# undef CORO_STACKGUARD
117#endif 70#endif
118 71
119#ifndef CORO_STACKGUARD 72#ifndef CORO_STACKGUARD
… …
135# define STACKLEVEL ((void *)&stacklevel) 88# define STACKLEVEL ((void *)&stacklevel)
136#endif 89#endif
137 90
138#define IN_DESTRUCT PL_dirty 91#define IN_DESTRUCT PL_dirty
139 92
140#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr), (value))
143# define INLINE static inline
144#else
145# define attribute(x)
146# define expect(expr,value) (expr)
147# define INLINE static
148#endif
149
150#define expect_false(expr) expect ((expr) != 0, 0)
151#define expect_true(expr) expect ((expr) != 0, 1)
152
153#define NOINLINE attribute ((noinline))
154
155#include "CoroAPI.h" 93#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */ 94#define GCoroAPI (&coroapi) /* very sneaky */
157 95
158#ifdef USE_ITHREADS 96#ifdef USE_ITHREADS
159# if CORO_PTHREAD 97# if CORO_PTHREAD
160static void *coro_thx; 98static void *coro_thx;
161# endif 99# endif
162#endif 100#endif
101
102/* used in state.h */
103#define VAR(name,type) VARx(name, PL_ ## name, type)
163 104
164#ifdef __linux 105#ifdef __linux
165# include <time.h> /* for timespec */ 106# include <time.h> /* for timespec */
166# include <syscall.h> /* for SYS_* */ 107# include <syscall.h> /* for SYS_* */
167# ifdef SYS_clock_gettime 108# ifdef SYS_clock_gettime
… …
170# define CORO_CLOCK_THREAD_CPUTIME_ID 3 111# define CORO_CLOCK_THREAD_CPUTIME_ID 3
171# endif 112# endif
172#endif 113#endif
173 114
174static double (*nvtime)(); /* so why doesn't it take void? */ 115static double (*nvtime)(); /* so why doesn't it take void? */
116static void (*u2time)(pTHX_ UV ret[2]);
175 117
176/* we hijack an hopefully unused CV flag for our purposes */ 118/* we hijack an hopefully unused CV flag for our purposes */
177#define CVf_SLF 0x4000 119#define CVf_SLF 0x4000
178static OP *pp_slf (pTHX); 120static OP *pp_slf (pTHX);
121static void slf_destroy (pTHX_ struct coro *coro);
179 122
180static U32 cctx_gen; 123static U32 cctx_gen;
181static size_t cctx_stacksize = CORO_STACKSIZE; 124static size_t cctx_stacksize = CORO_STACKSIZE;
182static struct CoroAPI coroapi; 125static struct CoroAPI coroapi;
183static AV *main_mainstack; /* used to differentiate between $main and others */ 126static AV *main_mainstack; /* used to differentiate between $main and others */
… …
200static SV *sv_pool_size; 143static SV *sv_pool_size;
201static SV *sv_async_pool_idle; /* description string */ 144static SV *sv_async_pool_idle; /* description string */
202static AV *av_async_pool; /* idle pool */ 145static AV *av_async_pool; /* idle pool */
203static SV *sv_Coro; /* class string */ 146static SV *sv_Coro; /* class string */
204static CV *cv_pool_handler; 147static CV *cv_pool_handler;
205static CV *cv_coro_state_new;
206 148
207/* Coro::AnyEvent */ 149/* Coro::AnyEvent */
208static SV *sv_activity; 150static SV *sv_activity;
209 151
152/* enable processtime/realtime profiling */
153static char enable_times;
154typedef U32 coro_ts[2];
155static coro_ts time_real, time_cpu;
156static char times_valid;
157
210static struct coro_cctx *cctx_first; 158static struct coro_cctx *cctx_first;
211static int cctx_count, cctx_idle; 159static int cctx_count, cctx_idle;
212 160
213enum { 161enum
162{
214 CC_MAPPED = 0x01, 163 CC_MAPPED = 0x01,
215 CC_NOREUSE = 0x02, /* throw this away after tracing */ 164 CC_NOREUSE = 0x02, /* throw this away after tracing */
216 CC_TRACE = 0x04, 165 CC_TRACE = 0x04,
217 CC_TRACE_SUB = 0x08, /* trace sub calls */ 166 CC_TRACE_SUB = 0x08, /* trace sub calls */
218 CC_TRACE_LINE = 0x10, /* trace each statement */ 167 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
239 int valgrind_id; 188 int valgrind_id;
240#endif 189#endif
241 unsigned char flags; 190 unsigned char flags;
242} coro_cctx; 191} coro_cctx;
243 192
244coro_cctx *cctx_current; /* the currently running cctx */ 193static coro_cctx *cctx_current; /* the currently running cctx */
245 194
246/*****************************************************************************/ 195/*****************************************************************************/
247 196
197static MGVTBL coro_state_vtbl;
198
248enum { 199enum
200{
249 CF_RUNNING = 0x0001, /* coroutine is running */ 201 CF_RUNNING = 0x0001, /* coroutine is running */
250 CF_READY = 0x0002, /* coroutine is ready */ 202 CF_READY = 0x0002, /* coroutine is ready */
251 CF_NEW = 0x0004, /* has never been switched to */ 203 CF_NEW = 0x0004, /* has never been switched to */
252 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 204 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
253 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 205 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
206 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
254}; 207};
255 208
256/* the structure where most of the perl state is stored, overlaid on the cxstack */ 209/* the structure where most of the perl state is stored, overlaid on the cxstack */
257typedef struct 210typedef struct
258{ 211{
259 SV *defsv;
260 AV *defav;
261 SV *errsv;
262 SV *irsgv;
263 HV *hinthv;
264#define VAR(name,type) type name; 212#define VARx(name,expr,type) type name;
265# include "state.h" 213# include "state.h"
266#undef VAR 214#undef VARx
267} perl_slots; 215} perl_slots;
268 216
217// how many context stack entries do we need for perl_slots
269#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 218#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
270 219
271/* this is a structure representing a perl-level coroutine */ 220/* this is a structure representing a perl-level coroutine */
272struct coro { 221struct coro
222{
273 /* the C coroutine allocated to this perl coroutine, if any */ 223 /* the C coroutine allocated to this perl coroutine, if any */
274 coro_cctx *cctx; 224 coro_cctx *cctx;
275 225
276 /* ready queue */ 226 /* ready queue */
277 struct coro *next_ready; 227 struct coro *next_ready;
… …
279 /* state data */ 229 /* state data */
280 struct CoroSLF slf_frame; /* saved slf frame */ 230 struct CoroSLF slf_frame; /* saved slf frame */
281 AV *mainstack; 231 AV *mainstack;
282 perl_slots *slot; /* basically the saved sp */ 232 perl_slots *slot; /* basically the saved sp */
283 233
284 CV *startcv; /* the CV to execute */ 234 CV *startcv; /* the CV to execute */
285 AV *args; /* data associated with this coroutine (initial args) */ 235 AV *args; /* data associated with this coroutine (initial args) */
286 int refcnt; /* coroutines are refcounted, yes */
287 int flags; /* CF_ flags */ 236 int flags; /* CF_ flags */
288 HV *hv; /* the perl hash associated with this coro, if any */ 237 HV *hv; /* the perl hash associated with this coro, if any */
289 void (*on_destroy)(pTHX_ struct coro *coro);
290 238
291 /* statistics */ 239 /* statistics */
292 int usecount; /* number of transfers to this coro */ 240 int usecount; /* number of transfers to this coro */
293 241
294 /* coro process data */ 242 /* coro process data */
295 int prio; 243 int prio;
296 SV *except; /* exception to be thrown */ 244 SV *except; /* exception to be thrown */
297 SV *rouse_cb; 245 SV *rouse_cb; /* last rouse callback */
246 AV *on_destroy; /* callbacks or coros to notify on destroy */
247 AV *status; /* the exit status list */
298 248
299 /* async_pool */ 249 /* async_pool */
300 SV *saved_deffh; 250 SV *saved_deffh;
301 SV *invoke_cb; 251 SV *invoke_cb;
302 AV *invoke_av; 252 AV *invoke_av;
303 253
304 /* on_enter/on_leave */ 254 /* on_enter/on_leave */
305 AV *on_enter; 255 AV *on_enter;
306 AV *on_leave; 256 AV *on_leave;
307 257
258 /* swap_sv */
259 AV *swap_sv;
260
261 /* times */
262 coro_ts t_cpu, t_real;
263
308 /* linked list */ 264 /* linked list */
309 struct coro *next, *prev; 265 struct coro *next, *prev;
310}; 266};
311 267
312typedef struct coro *Coro__State; 268typedef struct coro *Coro__State;
313typedef struct coro *Coro__State_or_hashref; 269typedef struct coro *Coro__State_or_hashref;
314 270
315/* the following variables are effectively part of the perl context */ 271/* the following variables are effectively part of the perl context */
316/* and get copied between struct coro and these variables */ 272/* and get copied between struct coro and these variables */
317/* the mainr easonw e don't support windows process emulation */ 273/* the main reason we don't support windows process emulation */
318static struct CoroSLF slf_frame; /* the current slf frame */ 274static struct CoroSLF slf_frame; /* the current slf frame */
319 275
320/** Coro ********************************************************************/ 276/** Coro ********************************************************************/
321 277
322#define CORO_PRIO_MAX 3 278#define CORO_PRIO_MAX 3
… …
328 284
329/* for Coro.pm */ 285/* for Coro.pm */
330static SV *coro_current; 286static SV *coro_current;
331static SV *coro_readyhook; 287static SV *coro_readyhook;
332static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 288static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
333static CV *cv_coro_run, *cv_coro_terminate; 289static CV *cv_coro_run;
334static struct coro *coro_first; 290static struct coro *coro_first;
335#define coro_nready coroapi.nready 291#define coro_nready coroapi.nready
336 292
293/** JIT *********************************************************************/
294
295#if CORO_JIT
296 #ifndef CORO_JIT_TYPE
297 #if __x86_64 && (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris)
298 #define CORO_JIT_TYPE "amd64-unix"
299 typedef void (*load_save_perl_slots_type)(perl_slots *);
300 #elif __i386 && (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris)
301 #define CORO_JIT_TYPE "x86-unix"
302 typedef void (*load_save_perl_slots_type)(perl_slots *);
303 #else
304 x x x x
305 #undef CORO_JIT
306 #endif
307 #endif
308#endif
309
310#if CORO_JIT
311static load_save_perl_slots_type load_perl_slots, save_perl_slots;
312#endif
313
314/** Coro::Select ************************************************************/
315
316static OP *(*coro_old_pp_sselect) (pTHX);
317static SV *coro_select_select;
318
319/* horrible hack, but if it works... */
320static OP *
321coro_pp_sselect (pTHX)
322{
323 dSP;
324 PUSHMARK (SP - 4); /* fake argument list */
325 XPUSHs (coro_select_select);
326 PUTBACK;
327
328 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
329 PL_op->op_flags |= OPf_STACKED;
330 PL_op->op_private = 0;
331 return PL_ppaddr [OP_ENTERSUB](aTHX);
332}
333
334/** time stuff **************************************************************/
335
336#ifdef HAS_GETTIMEOFDAY
337
338ECB_INLINE void
339coro_u2time (pTHX_ UV ret[2])
340{
341 struct timeval tv;
342 gettimeofday (&tv, 0);
343
344 ret [0] = tv.tv_sec;
345 ret [1] = tv.tv_usec;
346}
347
348ECB_INLINE double
349coro_nvtime ()
350{
351 struct timeval tv;
352 gettimeofday (&tv, 0);
353
354 return tv.tv_sec + tv.tv_usec * 1e-6;
355}
356
357ECB_INLINE void
358time_init (pTHX)
359{
360 nvtime = coro_nvtime;
361 u2time = coro_u2time;
362}
363
364#else
365
366ECB_INLINE void
367time_init (pTHX)
368{
369 SV **svp;
370
371 require_pv ("Time/HiRes.pm");
372
373 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
374
375 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
376 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
377
378 nvtime = INT2PTR (double (*)(), SvIV (*svp));
379
380 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
381 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
382}
383
384#endif
385
337/** lowlevel stuff **********************************************************/ 386/** lowlevel stuff **********************************************************/
338 387
339static SV * 388static SV * ecb_noinline
340coro_get_sv (pTHX_ const char *name, int create) 389coro_get_sv (pTHX_ const char *name, int create)
341{ 390{
342#if PERL_VERSION_ATLEAST (5,10,0) 391#if PERL_VERSION_ATLEAST (5,10,0)
343 /* 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 */
344 get_sv (name, create); 393 get_sv (name, create);
345#endif 394#endif
346 return get_sv (name, create); 395 return get_sv (name, create);
347} 396}
348 397
349static AV * 398static AV * ecb_noinline
350coro_get_av (pTHX_ const char *name, int create) 399coro_get_av (pTHX_ const char *name, int create)
351{ 400{
352#if PERL_VERSION_ATLEAST (5,10,0) 401#if PERL_VERSION_ATLEAST (5,10,0)
353 /* 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 */
354 get_av (name, create); 403 get_av (name, create);
355#endif 404#endif
356 return get_av (name, create); 405 return get_av (name, create);
357} 406}
358 407
359static HV * 408static HV * ecb_noinline
360coro_get_hv (pTHX_ const char *name, int create) 409coro_get_hv (pTHX_ const char *name, int create)
361{ 410{
362#if PERL_VERSION_ATLEAST (5,10,0) 411#if PERL_VERSION_ATLEAST (5,10,0)
363 /* 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 */
364 get_hv (name, create); 413 get_hv (name, create);
365#endif 414#endif
366 return get_hv (name, create); 415 return get_hv (name, create);
367} 416}
368 417
369/* may croak */ 418ECB_INLINE void
370INLINE CV * 419coro_times_update ()
371coro_sv_2cv (pTHX_ SV *sv)
372{ 420{
373 HV *st; 421#ifdef coro_clock_gettime
374 GV *gvp; 422 struct timespec ts;
375 CV *cv = sv_2cv (sv, &st, &gvp, 0);
376 423
377 if (!cv) 424 ts.tv_sec = ts.tv_nsec = 0;
378 croak ("code reference expected"); 425 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
426 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
379 427
380 return cv; 428 ts.tv_sec = ts.tv_nsec = 0;
429 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
430 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
431#else
432 dTHX;
433 UV tv[2];
434
435 u2time (aTHX_ tv);
436 time_real [0] = tv [0];
437 time_real [1] = tv [1] * 1000;
438#endif
439}
440
441ECB_INLINE void
442coro_times_add (struct coro *c)
443{
444 c->t_real [1] += time_real [1];
445 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
446 c->t_real [0] += time_real [0];
447
448 c->t_cpu [1] += time_cpu [1];
449 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
450 c->t_cpu [0] += time_cpu [0];
451}
452
453ECB_INLINE void
454coro_times_sub (struct coro *c)
455{
456 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
457 c->t_real [1] -= time_real [1];
458 c->t_real [0] -= time_real [0];
459
460 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
461 c->t_cpu [1] -= time_cpu [1];
462 c->t_cpu [0] -= time_cpu [0];
381} 463}
382 464
383/*****************************************************************************/ 465/*****************************************************************************/
384/* magic glue */ 466/* magic glue */
385 467
386#define CORO_MAGIC_type_cv 26 468#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext 469#define CORO_MAGIC_type_state PERL_MAGIC_ext
388 470
389#define CORO_MAGIC_NN(sv, type) \ 471#define CORO_MAGIC_NN(sv, type) \
390 (expect_true (SvMAGIC (sv)->mg_type == type) \ 472 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
391 ? SvMAGIC (sv) \ 473 ? SvMAGIC (sv) \
392 : mg_find (sv, type)) 474 : mg_find (sv, type))
393 475
394#define CORO_MAGIC(sv, type) \ 476#define CORO_MAGIC(sv, type) \
395 (expect_true (SvMAGIC (sv)) \ 477 (ecb_expect_true (SvMAGIC (sv)) \
396 ? CORO_MAGIC_NN (sv, type) \ 478 ? CORO_MAGIC_NN (sv, type) \
397 : 0) 479 : 0)
398 480
399#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)
400#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)
401 483
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
402INLINE struct coro * 499ECB_INLINE struct coro *
403SvSTATE_ (pTHX_ SV *coro) 500SvSTATE_ (pTHX_ SV *coro)
404{ 501{
405 HV *stash;
406 MAGIC *mg; 502 MAGIC *mg;
407 503
408 if (SvROK (coro)) 504 if (SvROK (coro))
409 coro = SvRV (coro); 505 coro = SvRV (coro);
410 506
411 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 507 mg = SvSTATEhv_p (aTHX_ coro);
508 if (!mg)
412 croak ("Coro::State object required"); 509 croak ("Coro::State object required");
413 510
414 stash = SvSTASH (coro);
415 if (expect_false (stash != coro_stash && stash != coro_state_stash))
416 {
417 /* very slow, but rare, check */
418 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
419 croak ("Coro::State object required");
420 }
421
422 mg = CORO_MAGIC_state (coro);
423 return (struct coro *)mg->mg_ptr; 511 return (struct coro *)mg->mg_ptr;
424} 512}
425 513
426#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 514#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
427 515
… …
430#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 518#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
431 519
432/*****************************************************************************/ 520/*****************************************************************************/
433/* padlist management and caching */ 521/* padlist management and caching */
434 522
435static AV * 523ECB_INLINE AV *
436coro_derive_padlist (pTHX_ CV *cv) 524coro_derive_padlist (pTHX_ CV *cv)
437{ 525{
438 AV *padlist = CvPADLIST (cv); 526 AV *padlist = CvPADLIST (cv);
439 AV *newpadlist, *newpad; 527 AV *newpadlist, *newpad;
440 528
… …
452 av_store (newpadlist, 1, (SV *)newpad); 540 av_store (newpadlist, 1, (SV *)newpad);
453 541
454 return newpadlist; 542 return newpadlist;
455} 543}
456 544
457static void 545ECB_INLINE void
458free_padlist (pTHX_ AV *padlist) 546free_padlist (pTHX_ AV *padlist)
459{ 547{
460 /* may be during global destruction */ 548 /* may be during global destruction */
461 if (!IN_DESTRUCT) 549 if (!IN_DESTRUCT)
462 { 550 {
… …
488 AV *padlist; 576 AV *padlist;
489 AV *av = (AV *)mg->mg_obj; 577 AV *av = (AV *)mg->mg_obj;
490 578
491 /* perl manages to free our internal AV and _then_ call us */ 579 /* perl manages to free our internal AV and _then_ call us */
492 if (IN_DESTRUCT) 580 if (IN_DESTRUCT)
493 return; 581 return 0;
494 582
495 /* casting is fun. */ 583 /* casting is fun. */
496 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 584 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
497 free_padlist (aTHX_ padlist); 585 free_padlist (aTHX_ padlist);
498 586
… …
505 0, 0, 0, 0, 593 0, 0, 0, 0,
506 coro_cv_free 594 coro_cv_free
507}; 595};
508 596
509/* the next two functions merely cache the padlists */ 597/* the next two functions merely cache the padlists */
510static void 598ECB_INLINE void
511get_padlist (pTHX_ CV *cv) 599get_padlist (pTHX_ CV *cv)
512{ 600{
513 MAGIC *mg = CORO_MAGIC_cv (cv); 601 MAGIC *mg = CORO_MAGIC_cv (cv);
514 AV *av; 602 AV *av;
515 603
516 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 604 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
517 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 605 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
518 else 606 else
519 { 607 {
520#if CORO_PREFER_PERL_FUNCTIONS 608#if CORO_PREFER_PERL_FUNCTIONS
521 /* this is probably cleaner? but also slower! */ 609 /* this is probably cleaner? but also slower! */
… …
528 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 616 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
529#endif 617#endif
530 } 618 }
531} 619}
532 620
533static void 621ECB_INLINE void
534put_padlist (pTHX_ CV *cv) 622put_padlist (pTHX_ CV *cv)
535{ 623{
536 MAGIC *mg = CORO_MAGIC_cv (cv); 624 MAGIC *mg = CORO_MAGIC_cv (cv);
537 AV *av; 625 AV *av;
538 626
539 if (expect_false (!mg)) 627 if (ecb_expect_false (!mg))
540 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 628 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
541 629
542 av = (AV *)mg->mg_obj; 630 av = (AV *)mg->mg_obj;
543 631
544 if (expect_false (AvFILLp (av) >= AvMAX (av))) 632 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
545 av_extend (av, AvFILLp (av) + 1); 633 av_extend (av, AvFILLp (av) + 1);
546 634
547 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 635 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
548} 636}
549 637
550/** load & save, init *******************************************************/ 638/** load & save, init *******************************************************/
639
640/* swap sv heads, at least logically */
641static void
642swap_svs (pTHX_ Coro__State c)
643{
644 int i;
645
646 for (i = 0; i <= AvFILLp (c->swap_sv); )
647 {
648 SV *a = AvARRAY (c->swap_sv)[i++];
649 SV *b = AvARRAY (c->swap_sv)[i++];
650
651 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
652 SV tmp;
653
654 /* swap sv_any */
655 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
656
657 /* swap sv_flags */
658 SvFLAGS (&tmp) = SvFLAGS (a);
659 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
660 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
661
662#if PERL_VERSION_ATLEAST (5,10,0)
663 /* perl 5.10 complicates this _quite_ a bit, but it also is
664 * much faster, so no quarrels here. alternatively, we could
665 * sv_upgrade to avoid this.
666 */
667 {
668 /* swap sv_u */
669 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
670
671 /* if SvANY points to the head, we need to adjust the pointers,
672 * as the pointer for a still points to b, and maybe vice versa.
673 */
674 #define svany_in_head(type) \
675 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
676
677 if (svany_in_head (SvTYPE (a)))
678 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
679
680 if (svany_in_head (SvTYPE (b)))
681 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
682 }
683#endif
684 }
685}
686
687#define SWAP_SVS(coro) \
688 if (ecb_expect_false ((coro)->swap_sv)) \
689 swap_svs (aTHX_ (coro))
551 690
552static void 691static void
553on_enterleave_call (pTHX_ SV *cb); 692on_enterleave_call (pTHX_ SV *cb);
554 693
555static void 694static void
… …
558 perl_slots *slot = c->slot; 697 perl_slots *slot = c->slot;
559 c->slot = 0; 698 c->slot = 0;
560 699
561 PL_mainstack = c->mainstack; 700 PL_mainstack = c->mainstack;
562 701
563 GvSV (PL_defgv) = slot->defsv; 702#if CORO_JIT
564 GvAV (PL_defgv) = slot->defav; 703 load_perl_slots (slot);
565 GvSV (PL_errgv) = slot->errsv; 704#else
566 GvSV (irsgv) = slot->irsgv;
567 GvHV (PL_hintgv) = slot->hinthv;
568
569 #define VAR(name,type) PL_ ## name = slot->name; 705 #define VARx(name,expr,type) expr = slot->name;
570 # include "state.h" 706 # include "state.h"
571 #undef VAR 707 #undef VARx
708#endif
572 709
573 { 710 {
574 dSP; 711 dSP;
575 712
576 CV *cv; 713 CV *cv;
577 714
578 /* now do the ugly restore mess */ 715 /* now do the ugly restore mess */
579 while (expect_true (cv = (CV *)POPs)) 716 while (ecb_expect_true (cv = (CV *)POPs))
580 { 717 {
581 put_padlist (aTHX_ cv); /* mark this padlist as available */ 718 put_padlist (aTHX_ cv); /* mark this padlist as available */
582 CvDEPTH (cv) = PTR2IV (POPs); 719 CvDEPTH (cv) = PTR2IV (POPs);
583 CvPADLIST (cv) = (AV *)POPs; 720 CvPADLIST (cv) = (AV *)POPs;
584 } 721 }
… …
587 } 724 }
588 725
589 slf_frame = c->slf_frame; 726 slf_frame = c->slf_frame;
590 CORO_THROW = c->except; 727 CORO_THROW = c->except;
591 728
729 if (ecb_expect_false (enable_times))
730 {
731 if (ecb_expect_false (!times_valid))
732 coro_times_update ();
733
734 coro_times_sub (c);
735 }
736
592 if (expect_false (c->on_enter)) 737 if (ecb_expect_false (c->on_enter))
593 { 738 {
594 int i; 739 int i;
595 740
596 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 741 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
597 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 742 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
598 } 743 }
744
745 SWAP_SVS (c);
599} 746}
600 747
601static void 748static void
602save_perl (pTHX_ Coro__State c) 749save_perl (pTHX_ Coro__State c)
603{ 750{
751 SWAP_SVS (c);
752
604 if (expect_false (c->on_leave)) 753 if (ecb_expect_false (c->on_leave))
605 { 754 {
606 int i; 755 int i;
607 756
608 for (i = AvFILLp (c->on_leave); i >= 0; --i) 757 for (i = AvFILLp (c->on_leave); i >= 0; --i)
609 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 758 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
759 }
760
761 times_valid = 0;
762
763 if (ecb_expect_false (enable_times))
764 {
765 coro_times_update (); times_valid = 1;
766 coro_times_add (c);
610 } 767 }
611 768
612 c->except = CORO_THROW; 769 c->except = CORO_THROW;
613 c->slf_frame = slf_frame; 770 c->slf_frame = slf_frame;
614 771
… …
625 782
626 XPUSHs (Nullsv); 783 XPUSHs (Nullsv);
627 /* this loop was inspired by pp_caller */ 784 /* this loop was inspired by pp_caller */
628 for (;;) 785 for (;;)
629 { 786 {
630 while (expect_true (cxix >= 0)) 787 while (ecb_expect_true (cxix >= 0))
631 { 788 {
632 PERL_CONTEXT *cx = &ccstk[cxix--]; 789 PERL_CONTEXT *cx = &ccstk[cxix--];
633 790
634 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 791 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
635 { 792 {
636 CV *cv = cx->blk_sub.cv; 793 CV *cv = cx->blk_sub.cv;
637 794
638 if (expect_true (CvDEPTH (cv))) 795 if (ecb_expect_true (CvDEPTH (cv)))
639 { 796 {
640 EXTEND (SP, 3); 797 EXTEND (SP, 3);
641 PUSHs ((SV *)CvPADLIST (cv)); 798 PUSHs ((SV *)CvPADLIST (cv));
642 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 799 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
643 PUSHs ((SV *)cv); 800 PUSHs ((SV *)cv);
… …
646 get_padlist (aTHX_ cv); 803 get_padlist (aTHX_ cv);
647 } 804 }
648 } 805 }
649 } 806 }
650 807
651 if (expect_true (top_si->si_type == PERLSI_MAIN)) 808 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
652 break; 809 break;
653 810
654 top_si = top_si->si_prev; 811 top_si = top_si->si_prev;
655 ccstk = top_si->si_cxstack; 812 ccstk = top_si->si_cxstack;
656 cxix = top_si->si_cxix; 813 cxix = top_si->si_cxix;
… …
658 815
659 PUTBACK; 816 PUTBACK;
660 } 817 }
661 818
662 /* allocate some space on the context stack for our purposes */ 819 /* allocate some space on the context stack for our purposes */
663 /* we manually unroll here, as usually 2 slots is enough */ 820 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
664 if (SLOT_COUNT >= 1) CXINC;
665 if (SLOT_COUNT >= 2) CXINC;
666 if (SLOT_COUNT >= 3) CXINC;
667 { 821 {
668 int i; 822 unsigned int i;
823
669 for (i = 3; i < SLOT_COUNT; ++i) 824 for (i = 0; i < SLOT_COUNT; ++i)
670 CXINC; 825 CXINC;
671 } 826
672 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 827 cxstack_ix -= SLOT_COUNT; /* undo allocation */
828 }
673 829
674 c->mainstack = PL_mainstack; 830 c->mainstack = PL_mainstack;
675 831
676 { 832 {
677 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 833 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
678 834
679 slot->defav = GvAV (PL_defgv); 835#if CORO_JIT
680 slot->defsv = DEFSV; 836 save_perl_slots (slot);
681 slot->errsv = ERRSV; 837#else
682 slot->irsgv = GvSV (irsgv);
683 slot->hinthv = GvHV (PL_hintgv);
684
685 #define VAR(name,type) slot->name = PL_ ## name; 838 #define VARx(name,expr,type) slot->name = expr;
686 # include "state.h" 839 # include "state.h"
687 #undef VAR 840 #undef VARx
841#endif
688 } 842 }
689} 843}
690 844
691/* 845/*
692 * allocate various perl stacks. This is almost an exact copy 846 * allocate various perl stacks. This is almost an exact copy
… …
698# define coro_init_stacks(thx) init_stacks () 852# define coro_init_stacks(thx) init_stacks ()
699#else 853#else
700static void 854static void
701coro_init_stacks (pTHX) 855coro_init_stacks (pTHX)
702{ 856{
703 PL_curstackinfo = new_stackinfo(32, 8); 857 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
704 PL_curstackinfo->si_type = PERLSI_MAIN; 858 PL_curstackinfo->si_type = PERLSI_MAIN;
705 PL_curstack = PL_curstackinfo->si_stack; 859 PL_curstack = PL_curstackinfo->si_stack;
706 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 860 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
707 861
708 PL_stack_base = AvARRAY(PL_curstack); 862 PL_stack_base = AvARRAY(PL_curstack);
… …
815#endif 969#endif
816 970
817/* 971/*
818 * This overrides the default magic get method of %SIG elements. 972 * This overrides the default magic get method of %SIG elements.
819 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 973 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
820 * and instead of trying to save and restore the hash elements, we just provide 974 * and instead of trying to save and restore the hash elements (extremely slow),
821 * readback here. 975 * we just provide our own readback here.
822 */ 976 */
823static int 977static int ecb_cold
824coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 978coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
825{ 979{
826 const char *s = MgPV_nolen_const (mg); 980 const char *s = MgPV_nolen_const (mg);
827 981
828 if (*s == '_') 982 if (*s == '_')
… …
840 } 994 }
841 995
842 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 996 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
843} 997}
844 998
845static int 999static int ecb_cold
846coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1000coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
847{ 1001{
848 const char *s = MgPV_nolen_const (mg); 1002 const char *s = MgPV_nolen_const (mg);
849 1003
850 if (*s == '_') 1004 if (*s == '_')
… …
864 } 1018 }
865 1019
866 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1020 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
867} 1021}
868 1022
869static int 1023static int ecb_cold
870coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1024coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
871{ 1025{
872 const char *s = MgPV_nolen_const (mg); 1026 const char *s = MgPV_nolen_const (mg);
873 1027
874 if (*s == '_') 1028 if (*s == '_')
… …
907slf_check_repeat (pTHX_ struct CoroSLF *frame) 1061slf_check_repeat (pTHX_ struct CoroSLF *frame)
908{ 1062{
909 return 1; 1063 return 1;
910} 1064}
911 1065
912static UNOP coro_setup_op; 1066static UNOP init_perl_op;
913 1067
914static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1068ecb_noinline static void /* noinline to keep it out of the transfer fast path */
915coro_setup (pTHX_ struct coro *coro) 1069init_perl (pTHX_ struct coro *coro)
916{ 1070{
917 /* 1071 /*
918 * emulate part of the perl startup here. 1072 * emulate part of the perl startup here.
919 */ 1073 */
920 coro_init_stacks (aTHX); 1074 coro_init_stacks (aTHX);
… …
927 PL_comppad_name_fill = 0; 1081 PL_comppad_name_fill = 0;
928 PL_comppad_name_floor = 0; 1082 PL_comppad_name_floor = 0;
929 PL_curpm = 0; 1083 PL_curpm = 0;
930 PL_curpad = 0; 1084 PL_curpad = 0;
931 PL_localizing = 0; 1085 PL_localizing = 0;
932 PL_dirty = 0;
933 PL_restartop = 0; 1086 PL_restartop = 0;
934#if PERL_VERSION_ATLEAST (5,10,0) 1087#if PERL_VERSION_ATLEAST (5,10,0)
935 PL_parser = 0; 1088 PL_parser = 0;
936#endif 1089#endif
937 PL_hints = 0; 1090 PL_hints = 0;
938 1091
939 /* recreate the die/warn hooks */ 1092 /* recreate the die/warn hooks */
940 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1093 PL_diehook = SvREFCNT_inc (rv_diehook);
941 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1094 PL_warnhook = SvREFCNT_inc (rv_warnhook);
942 1095
943 GvSV (PL_defgv) = newSV (0); 1096 GvSV (PL_defgv) = newSV (0);
944 GvAV (PL_defgv) = coro->args; coro->args = 0; 1097 GvAV (PL_defgv) = coro->args; coro->args = 0;
945 GvSV (PL_errgv) = newSV (0); 1098 GvSV (PL_errgv) = newSV (0);
946 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1099 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
… …
967 /* this newly created coroutine might be run on an existing cctx which most 1120 /* this newly created coroutine might be run on an existing cctx which most
968 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1121 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
969 */ 1122 */
970 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1123 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
971 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1124 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1125 slf_frame.destroy = 0;
972 1126
973 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1127 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
974 coro_setup_op.op_next = PL_op; 1128 init_perl_op.op_next = PL_op;
975 coro_setup_op.op_type = OP_ENTERSUB; 1129 init_perl_op.op_type = OP_ENTERSUB;
976 coro_setup_op.op_ppaddr = pp_slf; 1130 init_perl_op.op_ppaddr = pp_slf;
977 /* no flags etc. required, as an init function won't be called */ 1131 /* no flags etc. required, as an init function won't be called */
978 1132
979 PL_op = (OP *)&coro_setup_op; 1133 PL_op = (OP *)&init_perl_op;
980 1134
981 /* copy throw, in case it was set before coro_setup */ 1135 /* copy throw, in case it was set before init_perl */
982 CORO_THROW = coro->except; 1136 CORO_THROW = coro->except;
1137
1138 SWAP_SVS (coro);
1139
1140 if (ecb_expect_false (enable_times))
1141 {
1142 coro_times_update ();
1143 coro_times_sub (coro);
1144 }
983} 1145}
984 1146
985static void 1147static void
986coro_unwind_stacks (pTHX) 1148coro_unwind_stacks (pTHX)
987{ 1149{
… …
1002 dounwind (-1); 1164 dounwind (-1);
1003 } 1165 }
1004} 1166}
1005 1167
1006static void 1168static void
1007coro_destruct_perl (pTHX_ struct coro *coro) 1169destroy_perl (pTHX_ struct coro *coro)
1008{ 1170{
1009 SV *svf [9]; 1171 SV *svf [9];
1010 1172
1011 { 1173 {
1174 SV *old_current = SvRV (coro_current);
1012 struct coro *current = SvSTATE_current; 1175 struct coro *current = SvSTATE (old_current);
1013 1176
1014 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1177 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1015 1178
1016 save_perl (aTHX_ current); 1179 save_perl (aTHX_ current);
1180
1181 /* this will cause transfer_check to croak on block*/
1182 SvRV_set (coro_current, (SV *)coro->hv);
1183
1017 load_perl (aTHX_ coro); 1184 load_perl (aTHX_ coro);
1018 1185
1019 coro_unwind_stacks (aTHX); 1186 coro_unwind_stacks (aTHX);
1187
1188 /* restore swapped sv's */
1189 SWAP_SVS (coro);
1190
1020 coro_destruct_stacks (aTHX); 1191 coro_destruct_stacks (aTHX);
1021 1192
1022 // now save some sv's to be free'd later 1193 // now save some sv's to be free'd later
1023 svf [0] = GvSV (PL_defgv); 1194 svf [0] = GvSV (PL_defgv);
1024 svf [1] = (SV *)GvAV (PL_defgv); 1195 svf [1] = (SV *)GvAV (PL_defgv);
… …
1029 svf [6] = (SV *)GvHV (PL_hintgv); 1200 svf [6] = (SV *)GvHV (PL_hintgv);
1030 svf [7] = PL_diehook; 1201 svf [7] = PL_diehook;
1031 svf [8] = PL_warnhook; 1202 svf [8] = PL_warnhook;
1032 assert (9 == sizeof (svf) / sizeof (*svf)); 1203 assert (9 == sizeof (svf) / sizeof (*svf));
1033 1204
1205 SvRV_set (coro_current, old_current);
1206
1034 load_perl (aTHX_ current); 1207 load_perl (aTHX_ current);
1035 } 1208 }
1036 1209
1037 { 1210 {
1038 int i; 1211 unsigned int i;
1039 1212
1040 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) 1213 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1041 SvREFCNT_dec (svf [i]); 1214 SvREFCNT_dec (svf [i]);
1042 1215
1043 SvREFCNT_dec (coro->saved_deffh); 1216 SvREFCNT_dec (coro->saved_deffh);
… …
1045 SvREFCNT_dec (coro->invoke_cb); 1218 SvREFCNT_dec (coro->invoke_cb);
1046 SvREFCNT_dec (coro->invoke_av); 1219 SvREFCNT_dec (coro->invoke_av);
1047 } 1220 }
1048} 1221}
1049 1222
1050INLINE void 1223ECB_INLINE void
1051free_coro_mortal (pTHX) 1224free_coro_mortal (pTHX)
1052{ 1225{
1053 if (expect_true (coro_mortal)) 1226 if (ecb_expect_true (coro_mortal))
1054 { 1227 {
1055 SvREFCNT_dec (coro_mortal); 1228 SvREFCNT_dec ((SV *)coro_mortal);
1056 coro_mortal = 0; 1229 coro_mortal = 0;
1057 } 1230 }
1058} 1231}
1059 1232
1060static int 1233static int
… …
1193 1366
1194 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1367 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1195} 1368}
1196 1369
1197/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1370/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1198static void NOINLINE 1371static void ecb_noinline
1199cctx_prepare (pTHX) 1372cctx_prepare (pTHX)
1200{ 1373{
1201 PL_top_env = &PL_start_env; 1374 PL_top_env = &PL_start_env;
1202 1375
1203 if (cctx_current->flags & CC_TRACE) 1376 if (cctx_current->flags & CC_TRACE)
… …
1214 slf_frame.prepare = slf_prepare_set_stacklevel; 1387 slf_frame.prepare = slf_prepare_set_stacklevel;
1215 slf_frame.check = slf_check_set_stacklevel; 1388 slf_frame.check = slf_check_set_stacklevel;
1216} 1389}
1217 1390
1218/* the tail of transfer: execute stuff we can only do after a transfer */ 1391/* the tail of transfer: execute stuff we can only do after a transfer */
1219INLINE void 1392ECB_INLINE void
1220transfer_tail (pTHX) 1393transfer_tail (pTHX)
1221{ 1394{
1222 free_coro_mortal (aTHX); 1395 free_coro_mortal (aTHX);
1223} 1396}
1224 1397
… …
1249 /* somebody or something will hit me for both perl_run and PL_restartop */ 1422 /* somebody or something will hit me for both perl_run and PL_restartop */
1250 PL_restartop = PL_op; 1423 PL_restartop = PL_op;
1251 perl_run (PL_curinterp); 1424 perl_run (PL_curinterp);
1252 /* 1425 /*
1253 * Unfortunately, there is no way to get at the return values of the 1426 * Unfortunately, there is no way to get at the return values of the
1254 * coro body here, as perl_run destroys these 1427 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1428 * runtime errors here, as this is just a random interpreter, not a thread.
1255 */ 1429 */
1256 1430
1257 /* 1431 /*
1258 * If perl-run returns we assume exit() was being called or the coro 1432 * If perl-run returns we assume exit() was being called or the coro
1259 * fell off the end, which seems to be the only valid (non-bug) 1433 * fell off the end, which seems to be the only valid (non-bug)
… …
1346cctx_destroy (coro_cctx *cctx) 1520cctx_destroy (coro_cctx *cctx)
1347{ 1521{
1348 if (!cctx) 1522 if (!cctx)
1349 return; 1523 return;
1350 1524
1351 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1525 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1352 1526
1353 --cctx_count; 1527 --cctx_count;
1354 coro_destroy (&cctx->cctx); 1528 coro_destroy (&cctx->cctx);
1355 1529
1356 /* coro_transfer creates new, empty cctx's */ 1530 /* coro_transfer creates new, empty cctx's */
… …
1375#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1549#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1376 1550
1377static coro_cctx * 1551static coro_cctx *
1378cctx_get (pTHX) 1552cctx_get (pTHX)
1379{ 1553{
1380 while (expect_true (cctx_first)) 1554 while (ecb_expect_true (cctx_first))
1381 { 1555 {
1382 coro_cctx *cctx = cctx_first; 1556 coro_cctx *cctx = cctx_first;
1383 cctx_first = cctx->next; 1557 cctx_first = cctx->next;
1384 --cctx_idle; 1558 --cctx_idle;
1385 1559
1386 if (expect_true (!CCTX_EXPIRED (cctx))) 1560 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1387 return cctx; 1561 return cctx;
1388 1562
1389 cctx_destroy (cctx); 1563 cctx_destroy (cctx);
1390 } 1564 }
1391 1565
… …
1396cctx_put (coro_cctx *cctx) 1570cctx_put (coro_cctx *cctx)
1397{ 1571{
1398 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1572 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1399 1573
1400 /* free another cctx if overlimit */ 1574 /* free another cctx if overlimit */
1401 if (expect_false (cctx_idle >= cctx_max_idle)) 1575 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1402 { 1576 {
1403 coro_cctx *first = cctx_first; 1577 coro_cctx *first = cctx_first;
1404 cctx_first = first->next; 1578 cctx_first = first->next;
1405 --cctx_idle; 1579 --cctx_idle;
1406 1580
… …
1417static void 1591static void
1418transfer_check (pTHX_ struct coro *prev, struct coro *next) 1592transfer_check (pTHX_ struct coro *prev, struct coro *next)
1419{ 1593{
1420 /* TODO: throwing up here is considered harmful */ 1594 /* TODO: throwing up here is considered harmful */
1421 1595
1422 if (expect_true (prev != next)) 1596 if (ecb_expect_true (prev != next))
1423 { 1597 {
1424 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1598 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1425 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1599 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1426 1600
1427 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1601 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1428 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1602 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1429 1603
1430#if !PERL_VERSION_ATLEAST (5,10,0) 1604#if !PERL_VERSION_ATLEAST (5,10,0)
1431 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1605 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1432 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1606 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1433#endif 1607#endif
1434 } 1608 }
1435} 1609}
1436 1610
1437/* always use the TRANSFER macro */ 1611/* always use the TRANSFER macro */
1438static void NOINLINE /* noinline so we have a fixed stackframe */ 1612static void ecb_noinline /* noinline so we have a fixed stackframe */
1439transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1613transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1440{ 1614{
1441 dSTACKLEVEL; 1615 dSTACKLEVEL;
1442 1616
1443 /* sometimes transfer is only called to set idle_sp */ 1617 /* sometimes transfer is only called to set idle_sp */
1444 if (expect_false (!prev)) 1618 if (ecb_expect_false (!prev))
1445 { 1619 {
1446 cctx_current->idle_sp = STACKLEVEL; 1620 cctx_current->idle_sp = STACKLEVEL;
1447 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1621 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1448 } 1622 }
1449 else if (expect_true (prev != next)) 1623 else if (ecb_expect_true (prev != next))
1450 { 1624 {
1451 coro_cctx *cctx_prev; 1625 coro_cctx *cctx_prev;
1452 1626
1453 if (expect_false (prev->flags & CF_NEW)) 1627 if (ecb_expect_false (prev->flags & CF_NEW))
1454 { 1628 {
1455 /* create a new empty/source context */ 1629 /* create a new empty/source context */
1456 prev->flags &= ~CF_NEW; 1630 prev->flags &= ~CF_NEW;
1457 prev->flags |= CF_RUNNING; 1631 prev->flags |= CF_RUNNING;
1458 } 1632 }
… …
1461 next->flags |= CF_RUNNING; 1635 next->flags |= CF_RUNNING;
1462 1636
1463 /* first get rid of the old state */ 1637 /* first get rid of the old state */
1464 save_perl (aTHX_ prev); 1638 save_perl (aTHX_ prev);
1465 1639
1466 if (expect_false (next->flags & CF_NEW)) 1640 if (ecb_expect_false (next->flags & CF_NEW))
1467 { 1641 {
1468 /* need to start coroutine */ 1642 /* need to start coroutine */
1469 next->flags &= ~CF_NEW; 1643 next->flags &= ~CF_NEW;
1470 /* setup coroutine call */ 1644 /* setup coroutine call */
1471 coro_setup (aTHX_ next); 1645 init_perl (aTHX_ next);
1472 } 1646 }
1473 else 1647 else
1474 load_perl (aTHX_ next); 1648 load_perl (aTHX_ next);
1475 1649
1476 /* possibly untie and reuse the cctx */ 1650 /* possibly untie and reuse the cctx */
1477 if (expect_true ( 1651 if (ecb_expect_true (
1478 cctx_current->idle_sp == STACKLEVEL 1652 cctx_current->idle_sp == STACKLEVEL
1479 && !(cctx_current->flags & CC_TRACE) 1653 && !(cctx_current->flags & CC_TRACE)
1480 && !force_cctx 1654 && !force_cctx
1481 )) 1655 ))
1482 { 1656 {
1483 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1657 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1484 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1658 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1485 1659
1486 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1660 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1487 /* without this the next cctx_get might destroy the running cctx while still in use */ 1661 /* without this the next cctx_get might destroy the running cctx while still in use */
1488 if (expect_false (CCTX_EXPIRED (cctx_current))) 1662 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1489 if (expect_true (!next->cctx)) 1663 if (ecb_expect_true (!next->cctx))
1490 next->cctx = cctx_get (aTHX); 1664 next->cctx = cctx_get (aTHX);
1491 1665
1492 cctx_put (cctx_current); 1666 cctx_put (cctx_current);
1493 } 1667 }
1494 else 1668 else
1495 prev->cctx = cctx_current; 1669 prev->cctx = cctx_current;
1496 1670
1497 ++next->usecount; 1671 ++next->usecount;
1498 1672
1499 cctx_prev = cctx_current; 1673 cctx_prev = cctx_current;
1500 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1674 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1501 1675
1502 next->cctx = 0; 1676 next->cctx = 0;
1503 1677
1504 if (expect_false (cctx_prev != cctx_current)) 1678 if (ecb_expect_false (cctx_prev != cctx_current))
1505 { 1679 {
1506 cctx_prev->top_env = PL_top_env; 1680 cctx_prev->top_env = PL_top_env;
1507 PL_top_env = cctx_current->top_env; 1681 PL_top_env = cctx_current->top_env;
1508 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1682 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1509 } 1683 }
… …
1515#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1689#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1516#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1690#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1517 1691
1518/** high level stuff ********************************************************/ 1692/** high level stuff ********************************************************/
1519 1693
1694/* this function is actually Coro, not Coro::State, but we call it from here */
1695/* because it is convenient - but it hasn't been declared yet for that reason */
1520static int 1696static void
1697coro_call_on_destroy (pTHX_ struct coro *coro);
1698
1699static void
1521coro_state_destroy (pTHX_ struct coro *coro) 1700coro_state_destroy (pTHX_ struct coro *coro)
1522{ 1701{
1523 if (coro->flags & CF_DESTROYED) 1702 if (coro->flags & CF_ZOMBIE)
1524 return 0; 1703 return;
1525 1704
1526 if (coro->on_destroy && !PL_dirty)
1527 coro->on_destroy (aTHX_ coro); 1705 slf_destroy (aTHX_ coro);
1528 1706
1529 coro->flags |= CF_DESTROYED; 1707 coro->flags |= CF_ZOMBIE;
1530 1708
1531 if (coro->flags & CF_READY) 1709 if (coro->flags & CF_READY)
1532 { 1710 {
1533 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1711 /* reduce nready, as destroying a ready coro effectively unreadies it */
1534 /* alternative: look through all ready queues and remove the coro */ 1712 /* alternative: look through all ready queues and remove the coro */
1535 --coro_nready; 1713 --coro_nready;
1536 } 1714 }
1537 else 1715 else
1538 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1716 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1717
1718 if (coro->next) coro->next->prev = coro->prev;
1719 if (coro->prev) coro->prev->next = coro->next;
1720 if (coro == coro_first) coro_first = coro->next;
1539 1721
1540 if (coro->mainstack 1722 if (coro->mainstack
1541 && coro->mainstack != main_mainstack 1723 && coro->mainstack != main_mainstack
1542 && coro->slot 1724 && coro->slot
1543 && !PL_dirty) 1725 && !PL_dirty)
1544 coro_destruct_perl (aTHX_ coro); 1726 destroy_perl (aTHX_ coro);
1545 1727
1546 cctx_destroy (coro->cctx); 1728 cctx_destroy (coro->cctx);
1547 SvREFCNT_dec (coro->startcv); 1729 SvREFCNT_dec (coro->startcv);
1548 SvREFCNT_dec (coro->args); 1730 SvREFCNT_dec (coro->args);
1731 SvREFCNT_dec (coro->swap_sv);
1549 SvREFCNT_dec (CORO_THROW); 1732 SvREFCNT_dec (CORO_THROW);
1550 1733
1551 if (coro->next) coro->next->prev = coro->prev; 1734 coro_call_on_destroy (aTHX_ coro);
1552 if (coro->prev) coro->prev->next = coro->next;
1553 if (coro == coro_first) coro_first = coro->next;
1554 1735
1555 return 1; 1736 /* more destruction mayhem in coro_state_free */
1556} 1737}
1557 1738
1558static int 1739static int
1559coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1740coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1560{ 1741{
1561 struct coro *coro = (struct coro *)mg->mg_ptr; 1742 struct coro *coro = (struct coro *)mg->mg_ptr;
1562 mg->mg_ptr = 0; 1743 mg->mg_ptr = 0;
1563 1744
1564 coro->hv = 0;
1565
1566 if (--coro->refcnt < 0)
1567 {
1568 coro_state_destroy (aTHX_ coro); 1745 coro_state_destroy (aTHX_ coro);
1746 SvREFCNT_dec (coro->on_destroy);
1747 SvREFCNT_dec (coro->status);
1748
1569 Safefree (coro); 1749 Safefree (coro);
1570 }
1571 1750
1572 return 0; 1751 return 0;
1573} 1752}
1574 1753
1575static int 1754static int ecb_cold
1576coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1755coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1577{ 1756{
1578 struct coro *coro = (struct coro *)mg->mg_ptr; 1757 /* called when perl clones the current process the slow way (windows process emulation) */
1579 1758 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1580 ++coro->refcnt; 1759 mg->mg_ptr = 0;
1760 mg->mg_virtual = 0;
1581 1761
1582 return 0; 1762 return 0;
1583} 1763}
1584 1764
1585static MGVTBL coro_state_vtbl = { 1765static MGVTBL coro_state_vtbl = {
… …
1608 1788
1609 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1789 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1610 TRANSFER (ta, 1); 1790 TRANSFER (ta, 1);
1611} 1791}
1612 1792
1613/*****************************************************************************/
1614/* gensub: simple closure generation utility */
1615
1616#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1617
1618/* create a closure from XS, returns a code reference */
1619/* the arg can be accessed via GENSUB_ARG from the callback */
1620/* the callback must use dXSARGS/XSRETURN */
1621static SV *
1622gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1623{
1624 CV *cv = (CV *)newSV (0);
1625
1626 sv_upgrade ((SV *)cv, SVt_PVCV);
1627
1628 CvANON_on (cv);
1629 CvISXSUB_on (cv);
1630 CvXSUB (cv) = xsub;
1631 GENSUB_ARG = arg;
1632
1633 return newRV_noinc ((SV *)cv);
1634}
1635
1636/** Coro ********************************************************************/ 1793/** Coro ********************************************************************/
1637 1794
1638INLINE void 1795ECB_INLINE void
1639coro_enq (pTHX_ struct coro *coro) 1796coro_enq (pTHX_ struct coro *coro)
1640{ 1797{
1641 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1798 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1642 1799
1643 SvREFCNT_inc_NN (coro->hv); 1800 SvREFCNT_inc_NN (coro->hv);
… …
1645 coro->next_ready = 0; 1802 coro->next_ready = 0;
1646 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1803 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1647 ready [1] = coro; 1804 ready [1] = coro;
1648} 1805}
1649 1806
1650INLINE struct coro * 1807ECB_INLINE struct coro *
1651coro_deq (pTHX) 1808coro_deq (pTHX)
1652{ 1809{
1653 int prio; 1810 int prio;
1654 1811
1655 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1812 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1665 } 1822 }
1666 1823
1667 return 0; 1824 return 0;
1668} 1825}
1669 1826
1827static void
1828invoke_sv_ready_hook_helper (void)
1829{
1830 dTHX;
1831 dSP;
1832
1833 ENTER;
1834 SAVETMPS;
1835
1836 PUSHMARK (SP);
1837 PUTBACK;
1838 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1839
1840 FREETMPS;
1841 LEAVE;
1842}
1843
1670static int 1844static int
1671api_ready (pTHX_ SV *coro_sv) 1845api_ready (pTHX_ SV *coro_sv)
1672{ 1846{
1673 struct coro *coro;
1674 SV *sv_hook;
1675 void (*xs_hook)(void);
1676
1677 coro = SvSTATE (coro_sv); 1847 struct coro *coro = SvSTATE (coro_sv);
1678 1848
1679 if (coro->flags & CF_READY) 1849 if (coro->flags & CF_READY)
1680 return 0; 1850 return 0;
1681 1851
1682 coro->flags |= CF_READY; 1852 coro->flags |= CF_READY;
1683 1853
1684 sv_hook = coro_nready ? 0 : coro_readyhook;
1685 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1686
1687 coro_enq (aTHX_ coro); 1854 coro_enq (aTHX_ coro);
1688 ++coro_nready;
1689 1855
1690 if (sv_hook) 1856 if (!coro_nready++)
1691 { 1857 if (coroapi.readyhook)
1692 dSP; 1858 coroapi.readyhook ();
1693
1694 ENTER;
1695 SAVETMPS;
1696
1697 PUSHMARK (SP);
1698 PUTBACK;
1699 call_sv (sv_hook, G_VOID | G_DISCARD);
1700
1701 FREETMPS;
1702 LEAVE;
1703 }
1704
1705 if (xs_hook)
1706 xs_hook ();
1707 1859
1708 return 1; 1860 return 1;
1709} 1861}
1710 1862
1711static int 1863static int
… …
1713{ 1865{
1714 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1866 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1715} 1867}
1716 1868
1717/* expects to own a reference to next->hv */ 1869/* expects to own a reference to next->hv */
1718INLINE void 1870ECB_INLINE void
1719prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1871prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1720{ 1872{
1721 SV *prev_sv = SvRV (coro_current); 1873 SV *prev_sv = SvRV (coro_current);
1722 1874
1723 ta->prev = SvSTATE_hv (prev_sv); 1875 ta->prev = SvSTATE_hv (prev_sv);
… …
1736{ 1888{
1737 for (;;) 1889 for (;;)
1738 { 1890 {
1739 struct coro *next = coro_deq (aTHX); 1891 struct coro *next = coro_deq (aTHX);
1740 1892
1741 if (expect_true (next)) 1893 if (ecb_expect_true (next))
1742 { 1894 {
1743 /* cannot transfer to destroyed coros, skip and look for next */ 1895 /* cannot transfer to destroyed coros, skip and look for next */
1744 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1896 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1745 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1897 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1746 else 1898 else
1747 { 1899 {
1748 next->flags &= ~CF_READY; 1900 next->flags &= ~CF_READY;
1749 --coro_nready; 1901 --coro_nready;
… …
1756 { 1908 {
1757 /* nothing to schedule: call the idle handler */ 1909 /* nothing to schedule: call the idle handler */
1758 if (SvROK (sv_idle) 1910 if (SvROK (sv_idle)
1759 && SvOBJECT (SvRV (sv_idle))) 1911 && SvOBJECT (SvRV (sv_idle)))
1760 { 1912 {
1913 if (SvRV (sv_idle) == SvRV (coro_current))
1914 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1915
1761 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1916 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1762 api_ready (aTHX_ SvRV (sv_idle)); 1917 api_ready (aTHX_ SvRV (sv_idle));
1763 --coro_nready; 1918 --coro_nready;
1764 } 1919 }
1765 else 1920 else
1766 { 1921 {
1922 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1767 dSP; 1923 dSP;
1768 1924
1769 ENTER; 1925 ENTER;
1770 SAVETMPS; 1926 SAVETMPS;
1771 1927
… …
1778 } 1934 }
1779 } 1935 }
1780 } 1936 }
1781} 1937}
1782 1938
1783INLINE void 1939ECB_INLINE void
1784prepare_cede (pTHX_ struct coro_transfer_args *ta) 1940prepare_cede (pTHX_ struct coro_transfer_args *ta)
1785{ 1941{
1786 api_ready (aTHX_ coro_current); 1942 api_ready (aTHX_ coro_current);
1787 prepare_schedule (aTHX_ ta); 1943 prepare_schedule (aTHX_ ta);
1788} 1944}
1789 1945
1790INLINE void 1946ECB_INLINE void
1791prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1947prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1792{ 1948{
1793 SV *prev = SvRV (coro_current); 1949 SV *prev = SvRV (coro_current);
1794 1950
1795 if (coro_nready) 1951 if (coro_nready)
… …
1825{ 1981{
1826 struct coro_transfer_args ta; 1982 struct coro_transfer_args ta;
1827 1983
1828 prepare_cede (aTHX_ &ta); 1984 prepare_cede (aTHX_ &ta);
1829 1985
1830 if (expect_true (ta.prev != ta.next)) 1986 if (ecb_expect_true (ta.prev != ta.next))
1831 { 1987 {
1832 TRANSFER (ta, 1); 1988 TRANSFER (ta, 1);
1833 return 1; 1989 return 1;
1834 } 1990 }
1835 else 1991 else
… …
1878 coro->slot->runops = RUNOPS_DEFAULT; 2034 coro->slot->runops = RUNOPS_DEFAULT;
1879 } 2035 }
1880} 2036}
1881 2037
1882static void 2038static void
2039coro_push_av (pTHX_ AV *av, I32 gimme_v)
2040{
2041 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2042 {
2043 dSP;
2044
2045 if (gimme_v == G_SCALAR)
2046 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2047 else
2048 {
2049 int i;
2050 EXTEND (SP, AvFILLp (av) + 1);
2051
2052 for (i = 0; i <= AvFILLp (av); ++i)
2053 PUSHs (AvARRAY (av)[i]);
2054 }
2055
2056 PUTBACK;
2057 }
2058}
2059
2060static void
2061coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2062{
2063 if (!coro->on_destroy)
2064 coro->on_destroy = newAV ();
2065
2066 av_push (coro->on_destroy, cb);
2067}
2068
2069static void
2070slf_destroy_join (pTHX_ struct CoroSLF *frame)
2071{
2072 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2073}
2074
2075static int
2076slf_check_join (pTHX_ struct CoroSLF *frame)
2077{
2078 struct coro *coro = (struct coro *)frame->data;
2079
2080 if (!coro->status)
2081 return 1;
2082
2083 frame->destroy = 0;
2084
2085 coro_push_av (aTHX_ coro->status, GIMME_V);
2086
2087 SvREFCNT_dec ((SV *)coro->hv);
2088
2089 return 0;
2090}
2091
2092static void
2093slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2094{
2095 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2096
2097 if (items > 1)
2098 croak ("join called with too many arguments");
2099
2100 if (coro->status)
2101 frame->prepare = prepare_nop;
2102 else
2103 {
2104 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2105 frame->prepare = prepare_schedule;
2106 }
2107
2108 frame->check = slf_check_join;
2109 frame->destroy = slf_destroy_join;
2110 frame->data = (void *)coro;
2111 SvREFCNT_inc (coro->hv);
2112}
2113
2114static void
1883coro_call_on_destroy (pTHX_ struct coro *coro) 2115coro_call_on_destroy (pTHX_ struct coro *coro)
1884{ 2116{
1885 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2117 AV *od = coro->on_destroy;
1886 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1887 2118
1888 if (on_destroyp) 2119 if (!od)
1889 { 2120 return;
1890 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1891 2121
1892 while (AvFILLp (on_destroy) >= 0) 2122 while (AvFILLp (od) >= 0)
2123 {
2124 SV *cb = sv_2mortal (av_pop (od));
2125
2126 /* coro hv's (and only hv's at the moment) are supported as well */
2127 if (SvSTATEhv_p (aTHX_ cb))
2128 api_ready (aTHX_ cb);
2129 else
1893 { 2130 {
1894 dSP; /* don't disturb outer sp */ 2131 dSP; /* don't disturb outer sp */
1895 SV *cb = av_pop (on_destroy);
1896
1897 PUSHMARK (SP); 2132 PUSHMARK (SP);
1898 2133
1899 if (statusp) 2134 if (coro->status)
1900 { 2135 {
1901 int i; 2136 PUTBACK;
1902 AV *status = (AV *)SvRV (*statusp); 2137 coro_push_av (aTHX_ coro->status, G_ARRAY);
1903 EXTEND (SP, AvFILLp (status) + 1); 2138 SPAGAIN;
1904
1905 for (i = 0; i <= AvFILLp (status); ++i)
1906 PUSHs (AvARRAY (status)[i]);
1907 } 2139 }
1908 2140
1909 PUTBACK; 2141 PUTBACK;
1910 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2142 call_sv (cb, G_VOID | G_DISCARD);
1911 } 2143 }
1912 } 2144 }
1913} 2145}
1914 2146
1915static void 2147static void
1916slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2148coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1917{ 2149{
2150 AV *av;
2151
2152 if (coro->status)
2153 {
2154 av = coro->status;
2155 av_clear (av);
2156 }
2157 else
2158 av = coro->status = newAV ();
2159
2160 /* items are actually not so common, so optimise for this case */
2161 if (items)
2162 {
1918 int i; 2163 int i;
1919 HV *hv = (HV *)SvRV (coro_current);
1920 AV *av = newAV ();
1921 2164
1922 av_extend (av, items - 1); 2165 av_extend (av, items - 1);
2166
1923 for (i = 0; i < items; ++i) 2167 for (i = 0; i < items; ++i)
1924 av_push (av, SvREFCNT_inc_NN (arg [i])); 2168 av_push (av, SvREFCNT_inc_NN (arg [i]));
2169 }
2170}
1925 2171
1926 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2172static void
1927 2173slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2174{
1928 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2175 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1929 api_ready (aTHX_ sv_manager); 2176 api_ready (aTHX_ sv_manager);
1930 2177
1931 frame->prepare = prepare_schedule; 2178 frame->prepare = prepare_schedule;
1932 frame->check = slf_check_repeat; 2179 frame->check = slf_check_repeat;
1933 2180
1934 /* as a minor optimisation, we could unwind all stacks here */ 2181 /* as a minor optimisation, we could unwind all stacks here */
1935 /* but that puts extra pressure on pp_slf, and is not worth much */ 2182 /* but that puts extra pressure on pp_slf, and is not worth much */
1936 /*coro_unwind_stacks (aTHX);*/ 2183 /*coro_unwind_stacks (aTHX);*/
2184}
2185
2186static void
2187slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2188{
2189 HV *coro_hv = (HV *)SvRV (coro_current);
2190
2191 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2192 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2193}
2194
2195static void
2196slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2197{
2198 HV *coro_hv;
2199 struct coro *coro;
2200
2201 if (items <= 0)
2202 croak ("Coro::cancel called without coro object,");
2203
2204 coro = SvSTATE (arg [0]);
2205 coro_hv = coro->hv;
2206
2207 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2208
2209 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2210 {
2211 /* coro currently busy cancelling something, so just notify it */
2212 coro->slf_frame.data = (void *)coro;
2213
2214 frame->prepare = prepare_nop;
2215 frame->check = slf_check_nop;
2216 }
2217 else if (coro_hv == (HV *)SvRV (coro_current))
2218 {
2219 /* cancelling the current coro is allowed, and equals terminate */
2220 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2221 }
2222 else
2223 {
2224 struct coro *self = SvSTATE_current;
2225
2226 /* otherwise we cancel directly, purely for speed reasons
2227 * unfortunately, this requires some magic trickery, as
2228 * somebody else could cancel us, so we have to fight the cancellation.
2229 * this is ugly, and hopefully fully worth the extra speed.
2230 * besides, I can't get the slow-but-safe version working...
2231 */
2232 slf_frame.data = 0;
2233 self->flags |= CF_NOCANCEL;
2234 coro_state_destroy (aTHX_ coro);
2235 self->flags &= ~CF_NOCANCEL;
2236
2237 if (slf_frame.data)
2238 {
2239 /* while we were busy we have been cancelled, so terminate */
2240 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2241 }
2242 else
2243 {
2244 frame->prepare = prepare_nop;
2245 frame->check = slf_check_nop;
2246 }
2247 }
2248}
2249
2250static int
2251slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2252{
2253 frame->prepare = 0;
2254 coro_unwind_stacks (aTHX);
2255
2256 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2257
2258 return 1;
2259}
2260
2261static int
2262safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2263{
2264 if (coro->cctx)
2265 croak ("coro inside C callback, unable to cancel at this time, caught");
2266
2267 if (coro->flags & CF_NEW)
2268 {
2269 coro_set_status (aTHX_ coro, arg, items);
2270 coro_state_destroy (aTHX_ coro);
2271 }
2272 else
2273 {
2274 if (!coro->slf_frame.prepare)
2275 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2276
2277 slf_destroy (aTHX_ coro);
2278
2279 coro_set_status (aTHX_ coro, arg, items);
2280 coro->slf_frame.prepare = prepare_nop;
2281 coro->slf_frame.check = slf_check_safe_cancel;
2282
2283 api_ready (aTHX_ (SV *)coro->hv);
2284 }
2285
2286 return 1;
1937} 2287}
1938 2288
1939/*****************************************************************************/ 2289/*****************************************************************************/
1940/* async pool handler */ 2290/* async pool handler */
1941 2291
… …
1972slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2322slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1973{ 2323{
1974 HV *hv = (HV *)SvRV (coro_current); 2324 HV *hv = (HV *)SvRV (coro_current);
1975 struct coro *coro = SvSTATE_hv ((SV *)hv); 2325 struct coro *coro = SvSTATE_hv ((SV *)hv);
1976 2326
1977 if (expect_true (coro->saved_deffh)) 2327 if (ecb_expect_true (coro->saved_deffh))
1978 { 2328 {
1979 /* subsequent iteration */ 2329 /* subsequent iteration */
1980 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2330 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1981 coro->saved_deffh = 0; 2331 coro->saved_deffh = 0;
1982 2332
1983 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2333 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1984 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2334 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1985 { 2335 {
1986 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2336 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1987 coro->invoke_av = newAV (); 2337 return;
1988
1989 frame->prepare = prepare_nop;
1990 } 2338 }
1991 else 2339 else
1992 { 2340 {
1993 av_clear (GvAV (PL_defgv)); 2341 av_clear (GvAV (PL_defgv));
1994 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2342 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2019 2367
2020static void 2368static void
2021coro_rouse_callback (pTHX_ CV *cv) 2369coro_rouse_callback (pTHX_ CV *cv)
2022{ 2370{
2023 dXSARGS; 2371 dXSARGS;
2024 SV *data = (SV *)GENSUB_ARG; 2372 SV *data = (SV *)S_GENSUB_ARG;
2025 2373
2026 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2374 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2027 { 2375 {
2028 /* first call, set args */ 2376 /* first call, set args */
2029 SV *coro = SvRV (data); 2377 SV *coro = SvRV (data);
… …
2095 || SvTYPE (SvRV (cb)) != SVt_PVCV 2443 || SvTYPE (SvRV (cb)) != SVt_PVCV
2096 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2444 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2097 croak ("Coro::rouse_wait called with illegal callback argument,"); 2445 croak ("Coro::rouse_wait called with illegal callback argument,");
2098 2446
2099 { 2447 {
2100 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2448 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2101 SV *data = (SV *)GENSUB_ARG; 2449 SV *data = (SV *)S_GENSUB_ARG;
2102 2450
2103 frame->data = (void *)data; 2451 frame->data = (void *)data;
2104 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2452 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2105 frame->check = slf_check_rouse_wait; 2453 frame->check = slf_check_rouse_wait;
2106 } 2454 }
… …
2110coro_new_rouse_cb (pTHX) 2458coro_new_rouse_cb (pTHX)
2111{ 2459{
2112 HV *hv = (HV *)SvRV (coro_current); 2460 HV *hv = (HV *)SvRV (coro_current);
2113 struct coro *coro = SvSTATE_hv (hv); 2461 struct coro *coro = SvSTATE_hv (hv);
2114 SV *data = newRV_inc ((SV *)hv); 2462 SV *data = newRV_inc ((SV *)hv);
2115 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2463 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2116 2464
2117 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2465 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2118 SvREFCNT_dec (data); /* magicext increases the refcount */ 2466 SvREFCNT_dec (data); /* magicext increases the refcount */
2119 2467
2120 SvREFCNT_dec (coro->rouse_cb); 2468 SvREFCNT_dec (coro->rouse_cb);
… …
2217static void 2565static void
2218slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2566slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2219{ 2567{
2220 frame->prepare = prepare_cede_notself; 2568 frame->prepare = prepare_cede_notself;
2221 frame->check = slf_check_nop; 2569 frame->check = slf_check_nop;
2570}
2571
2572/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2573static void
2574slf_destroy (pTHX_ struct coro *coro)
2575{
2576 /* this callback is reserved for slf functions needing to do cleanup */
2577 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2578 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2579
2580 /*
2581 * The on_destroy above most likely is from an SLF call.
2582 * Since by definition the SLF call will not finish when we destroy
2583 * the coro, we will have to force-finish it here, otherwise
2584 * cleanup functions cannot call SLF functions.
2585 */
2586 coro->slf_frame.prepare = 0;
2222} 2587}
2223 2588
2224/* 2589/*
2225 * these not obviously related functions are all rolled into one 2590 * these not obviously related functions are all rolled into one
2226 * function to increase chances that they all will call transfer with the same 2591 * function to increase chances that they all will call transfer with the same
… …
2233 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2598 I32 checkmark; /* mark SP to see how many elements check has pushed */
2234 2599
2235 /* set up the slf frame, unless it has already been set-up */ 2600 /* set up the slf frame, unless it has already been set-up */
2236 /* the latter happens when a new coro has been started */ 2601 /* the latter happens when a new coro has been started */
2237 /* or when a new cctx was attached to an existing coroutine */ 2602 /* or when a new cctx was attached to an existing coroutine */
2238 if (expect_true (!slf_frame.prepare)) 2603 if (ecb_expect_true (!slf_frame.prepare))
2239 { 2604 {
2240 /* first iteration */ 2605 /* first iteration */
2241 dSP; 2606 dSP;
2242 SV **arg = PL_stack_base + TOPMARK + 1; 2607 SV **arg = PL_stack_base + TOPMARK + 1;
2243 int items = SP - arg; /* args without function object */ 2608 int items = SP - arg; /* args without function object */
… …
2284 while (slf_frame.check (aTHX_ &slf_frame)); 2649 while (slf_frame.check (aTHX_ &slf_frame));
2285 2650
2286 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2651 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2287 2652
2288 /* exception handling */ 2653 /* exception handling */
2289 if (expect_false (CORO_THROW)) 2654 if (ecb_expect_false (CORO_THROW))
2290 { 2655 {
2291 SV *exception = sv_2mortal (CORO_THROW); 2656 SV *exception = sv_2mortal (CORO_THROW);
2292 2657
2293 CORO_THROW = 0; 2658 CORO_THROW = 0;
2294 sv_setsv (ERRSV, exception); 2659 sv_setsv (ERRSV, exception);
2295 croak (0); 2660 croak (0);
2296 } 2661 }
2297 2662
2298 /* return value handling - mostly like entersub */ 2663 /* return value handling - mostly like entersub */
2299 /* make sure we put something on the stack in scalar context */ 2664 /* make sure we put something on the stack in scalar context */
2300 if (GIMME_V == G_SCALAR) 2665 if (GIMME_V == G_SCALAR
2666 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2301 { 2667 {
2302 dSP; 2668 dSP;
2303 SV **bot = PL_stack_base + checkmark; 2669 SV **bot = PL_stack_base + checkmark;
2304 2670
2305 if (sp == bot) /* too few, push undef */ 2671 if (sp == bot) /* too few, push undef */
2306 bot [1] = &PL_sv_undef; 2672 bot [1] = &PL_sv_undef;
2307 else if (sp != bot + 1) /* too many, take last one */ 2673 else /* too many, take last one */
2308 bot [1] = *sp; 2674 bot [1] = *sp;
2309 2675
2310 SP = bot + 1; 2676 SP = bot + 1;
2311 2677
2312 PUTBACK; 2678 PUTBACK;
… …
2345 if (PL_op->op_flags & OPf_STACKED) 2711 if (PL_op->op_flags & OPf_STACKED)
2346 { 2712 {
2347 if (items > slf_arga) 2713 if (items > slf_arga)
2348 { 2714 {
2349 slf_arga = items; 2715 slf_arga = items;
2350 free (slf_argv); 2716 Safefree (slf_argv);
2351 slf_argv = malloc (slf_arga * sizeof (SV *)); 2717 New (0, slf_argv, slf_arga, SV *);
2352 } 2718 }
2353 2719
2354 slf_argc = items; 2720 slf_argc = items;
2355 2721
2356 for (i = 0; i < items; ++i) 2722 for (i = 0; i < items; ++i)
… …
2419{ 2785{
2420 PerlIOBuf base; 2786 PerlIOBuf base;
2421 NV next, every; 2787 NV next, every;
2422} PerlIOCede; 2788} PerlIOCede;
2423 2789
2424static IV 2790static IV ecb_cold
2425PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2791PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2426{ 2792{
2427 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2793 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2428 2794
2429 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2795 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2430 self->next = nvtime () + self->every; 2796 self->next = nvtime () + self->every;
2431 2797
2432 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2798 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2433} 2799}
2434 2800
2435static SV * 2801static SV * ecb_cold
2436PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2802PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2437{ 2803{
2438 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2804 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2439 2805
2440 return newSVnv (self->every); 2806 return newSVnv (self->every);
… …
2552 SvREFCNT_dec (cb); 2918 SvREFCNT_dec (cb);
2553 } 2919 }
2554} 2920}
2555 2921
2556static void 2922static void
2557coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2923coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2558{ 2924{
2559 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2925 /* call $sem->adjust (0) to possibly wake up some other waiters */
2560 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2926 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2561} 2927}
2562 2928
2563static int 2929static int
2564slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2930slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2565{ 2931{
2566 AV *av = (AV *)frame->data; 2932 AV *av = (AV *)frame->data;
2567 SV *count_sv = AvARRAY (av)[0]; 2933 SV *count_sv = AvARRAY (av)[0];
2934 SV *coro_hv = SvRV (coro_current);
2568 2935
2569 /* if we are about to throw, don't actually acquire the lock, just throw */ 2936 /* if we are about to throw, don't actually acquire the lock, just throw */
2570 if (CORO_THROW) 2937 if (CORO_THROW)
2571 return 0; 2938 return 0;
2572 else if (SvIVX (count_sv) > 0) 2939 else if (SvIVX (count_sv) > 0)
2573 { 2940 {
2574 SvSTATE_current->on_destroy = 0; 2941 frame->destroy = 0;
2575 2942
2576 if (acquire) 2943 if (acquire)
2577 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2944 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2578 else 2945 else
2579 coro_semaphore_adjust (aTHX_ av, 0); 2946 coro_semaphore_adjust (aTHX_ av, 0);
… …
2584 { 2951 {
2585 int i; 2952 int i;
2586 /* if we were woken up but can't down, we look through the whole */ 2953 /* if we were woken up but can't down, we look through the whole */
2587 /* waiters list and only add us if we aren't in there already */ 2954 /* waiters list and only add us if we aren't in there already */
2588 /* this avoids some degenerate memory usage cases */ 2955 /* this avoids some degenerate memory usage cases */
2589 2956 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2590 for (i = 1; i <= AvFILLp (av); ++i)
2591 if (AvARRAY (av)[i] == SvRV (coro_current)) 2957 if (AvARRAY (av)[i] == coro_hv)
2592 return 1; 2958 return 1;
2593 2959
2594 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2960 av_push (av, SvREFCNT_inc (coro_hv));
2595 return 1; 2961 return 1;
2596 } 2962 }
2597} 2963}
2598 2964
2599static int 2965static int
… …
2622 { 2988 {
2623 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2989 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2624 2990
2625 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2991 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2626 frame->prepare = prepare_schedule; 2992 frame->prepare = prepare_schedule;
2627
2628 /* to avoid race conditions when a woken-up coro gets terminated */ 2993 /* to avoid race conditions when a woken-up coro gets terminated */
2629 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2994 /* we arrange for a temporary on_destroy that calls adjust (0) */
2630 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2995 frame->destroy = coro_semaphore_destroy;
2631 } 2996 }
2632} 2997}
2633 2998
2634static void 2999static void
2635slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3000slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2643{ 3008{
2644 if (items >= 2) 3009 if (items >= 2)
2645 { 3010 {
2646 /* callback form */ 3011 /* callback form */
2647 AV *av = (AV *)SvRV (arg [0]); 3012 AV *av = (AV *)SvRV (arg [0]);
2648 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3013 SV *cb_cv = s_get_cv_croak (arg [1]);
2649 3014
2650 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3015 av_push (av, SvREFCNT_inc_NN (cb_cv));
2651 3016
2652 if (SvIVX (AvARRAY (av)[0]) > 0) 3017 if (SvIVX (AvARRAY (av)[0]) > 0)
2653 coro_semaphore_adjust (aTHX_ av, 0); 3018 coro_semaphore_adjust (aTHX_ av, 0);
… …
2713{ 3078{
2714 AV *av = (AV *)SvRV (arg [0]); 3079 AV *av = (AV *)SvRV (arg [0]);
2715 3080
2716 if (items >= 2) 3081 if (items >= 2)
2717 { 3082 {
2718 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3083 SV *cb_cv = s_get_cv_croak (arg [1]);
2719 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3084 av_push (av, SvREFCNT_inc_NN (cb_cv));
2720 3085
2721 if (SvIVX (AvARRAY (av)[0])) 3086 if (SvIVX (AvARRAY (av)[0]))
2722 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3087 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2723 3088
2724 frame->prepare = prepare_nop; 3089 frame->prepare = prepare_nop;
2725 frame->check = slf_check_nop; 3090 frame->check = slf_check_nop;
2726 } 3091 }
2727 else if (SvIVX (AvARRAY (av)[0])) 3092 else if (SvIVX (AvARRAY (av)[0]))
… …
2758 3123
2759static void 3124static void
2760coro_aio_callback (pTHX_ CV *cv) 3125coro_aio_callback (pTHX_ CV *cv)
2761{ 3126{
2762 dXSARGS; 3127 dXSARGS;
2763 AV *state = (AV *)GENSUB_ARG; 3128 AV *state = (AV *)S_GENSUB_ARG;
2764 SV *coro = av_pop (state); 3129 SV *coro = av_pop (state);
2765 SV *data_sv = newSV (sizeof (struct io_state)); 3130 SV *data_sv = newSV (sizeof (struct io_state));
2766 3131
2767 av_extend (state, items - 1); 3132 av_extend (state, items - 1);
2768 3133
… …
2853 dSP; 3218 dSP;
2854 3219
2855 static SV *prio_cv; 3220 static SV *prio_cv;
2856 static SV *prio_sv; 3221 static SV *prio_sv;
2857 3222
2858 if (expect_false (!prio_cv)) 3223 if (ecb_expect_false (!prio_cv))
2859 { 3224 {
2860 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3225 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2861 prio_sv = newSViv (0); 3226 prio_sv = newSViv (0);
2862 } 3227 }
2863 3228
… …
2882 3247
2883 for (i = 0; i < items; ++i) 3248 for (i = 0; i < items; ++i)
2884 PUSHs (arg [i]); 3249 PUSHs (arg [i]);
2885 3250
2886 /* now push the callback closure */ 3251 /* now push the callback closure */
2887 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3252 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2888 3253
2889 /* now call the AIO function - we assume our request is uncancelable */ 3254 /* now call the AIO function - we assume our request is uncancelable */
2890 PUTBACK; 3255 PUTBACK;
2891 call_sv ((SV *)req, G_VOID | G_DISCARD); 3256 call_sv ((SV *)req, G_VOID | G_DISCARD);
2892 } 3257 }
2893 3258
2894 /* now that the requets is going, we loop toll we have a result */ 3259 /* now that the request is going, we loop till we have a result */
2895 frame->data = (void *)state; 3260 frame->data = (void *)state;
2896 frame->prepare = prepare_schedule; 3261 frame->prepare = prepare_schedule;
2897 frame->check = slf_check_aio_req; 3262 frame->check = slf_check_aio_req;
2898} 3263}
2899 3264
… …
2909 3274
2910/*****************************************************************************/ 3275/*****************************************************************************/
2911 3276
2912#if CORO_CLONE 3277#if CORO_CLONE
2913# include "clone.c" 3278# include "clone.c"
3279#endif
3280
3281/*****************************************************************************/
3282
3283static SV *
3284coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3285{
3286 SV *coro_sv;
3287 struct coro *coro;
3288 MAGIC *mg;
3289 HV *hv;
3290 SV *cb;
3291 int i;
3292
3293 if (argc > 0)
3294 {
3295 cb = s_get_cv_croak (argv [0]);
3296
3297 if (!is_coro)
3298 {
3299 if (CvISXSUB (cb))
3300 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3301
3302 if (!CvROOT (cb))
3303 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3304 }
3305 }
3306
3307 Newz (0, coro, 1, struct coro);
3308 coro->args = newAV ();
3309 coro->flags = CF_NEW;
3310
3311 if (coro_first) coro_first->prev = coro;
3312 coro->next = coro_first;
3313 coro_first = coro;
3314
3315 coro->hv = hv = newHV ();
3316 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3317 mg->mg_flags |= MGf_DUP;
3318 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3319
3320 if (argc > 0)
3321 {
3322 av_extend (coro->args, argc + is_coro - 1);
3323
3324 if (is_coro)
3325 {
3326 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3327 cb = (SV *)cv_coro_run;
3328 }
3329
3330 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3331
3332 for (i = 1; i < argc; i++)
3333 av_push (coro->args, newSVsv (argv [i]));
3334 }
3335
3336 return coro_sv;
3337}
3338
3339#ifndef __cplusplus
3340ecb_cold XS(boot_Coro__State);
3341#endif
3342
3343#if CORO_JIT
3344
3345static void ecb_noinline ecb_cold
3346pushav_3uv (pTHX_ UV a, UV b, UV c)
3347{
3348 dSP;
3349 AV *av = newAV ();
3350
3351 av_store (av, 2, newSVuv (c));
3352 av_store (av, 1, newSVuv (b));
3353 av_store (av, 0, newSVuv (a));
3354
3355 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3356
3357 PUTBACK;
3358}
3359
3360static void ecb_noinline ecb_cold
3361jit_init (pTHX)
3362{
3363 dSP;
3364 SV *load, *save;
3365 char *map_base;
3366 char *load_ptr, *save_ptr;
3367 STRLEN load_len, save_len;
3368 int count;
3369
3370 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3371
3372 PUSHMARK (SP);
3373#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type));
3374# include "state.h"
3375#undef VARx
3376 count = call_pv ("Coro::State::_jit", G_ARRAY);
3377 SPAGAIN;
3378
3379 save = POPs; save_ptr = SvPVbyte (save, save_len);
3380 load = POPs; load_ptr = SvPVbyte (load, load_len);
3381
3382 map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3383
3384 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3385
3386 load_perl_slots = (load_save_perl_slots_type)map_base;
3387 memcpy (map_base, load_ptr, load_len);
3388
3389 map_base += (load_len + 15) & ~15;
3390
3391 save_perl_slots = (load_save_perl_slots_type)map_base;
3392 memcpy (map_base, save_ptr, save_len);
3393
3394 PUTBACK;
3395 eval_pv ("undef &Coro::State::_jit", 1);
3396}
3397
2914#endif 3398#endif
2915 3399
2916MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3400MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2917 3401
2918PROTOTYPES: DISABLE 3402PROTOTYPES: DISABLE
… …
2924 coro_thx = PERL_GET_CONTEXT; 3408 coro_thx = PERL_GET_CONTEXT;
2925# endif 3409# endif
2926#endif 3410#endif
2927 BOOT_PAGESIZE; 3411 BOOT_PAGESIZE;
2928 3412
3413 /* perl defines these to check for existance first, but why it doesn't */
3414 /* just create them one at init time is not clear to me, except for */
3415 /* programs trying to delete them, but... */
3416 /* anyway, we declare this as invalid and make sure they are initialised here */
3417 DEFSV;
3418 ERRSV;
3419
2929 cctx_current = cctx_new_empty (); 3420 cctx_current = cctx_new_empty ();
2930 3421
2931 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3422 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2932 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3423 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2933 3424
… …
2972 coroapi.prepare_nop = prepare_nop; 3463 coroapi.prepare_nop = prepare_nop;
2973 coroapi.prepare_schedule = prepare_schedule; 3464 coroapi.prepare_schedule = prepare_schedule;
2974 coroapi.prepare_cede = prepare_cede; 3465 coroapi.prepare_cede = prepare_cede;
2975 coroapi.prepare_cede_notself = prepare_cede_notself; 3466 coroapi.prepare_cede_notself = prepare_cede_notself;
2976 3467
2977 { 3468 time_init (aTHX);
2978 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2979
2980 if (!svp) croak ("Time::HiRes is required");
2981 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2982
2983 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2984 }
2985 3469
2986 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3470 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3471#if CORO_JIT
3472 PUTBACK;
3473 jit_init (aTHX);
3474 SPAGAIN;
3475#endif
2987} 3476}
2988 3477
2989SV * 3478SV *
2990new (char *klass, ...) 3479new (SV *klass, ...)
2991 ALIAS: 3480 ALIAS:
2992 Coro::new = 1 3481 Coro::new = 1
2993 CODE: 3482 CODE:
2994{ 3483 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2995 struct coro *coro; 3484 OUTPUT:
2996 MAGIC *mg;
2997 HV *hv;
2998 CV *cb;
2999 int i;
3000
3001 if (items > 1)
3002 {
3003 cb = coro_sv_2cv (aTHX_ ST (1));
3004
3005 if (!ix)
3006 {
3007 if (CvISXSUB (cb))
3008 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3009
3010 if (!CvROOT (cb))
3011 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3012 }
3013 }
3014
3015 Newz (0, coro, 1, struct coro);
3016 coro->args = newAV ();
3017 coro->flags = CF_NEW;
3018
3019 if (coro_first) coro_first->prev = coro;
3020 coro->next = coro_first;
3021 coro_first = coro;
3022
3023 coro->hv = hv = newHV ();
3024 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3025 mg->mg_flags |= MGf_DUP;
3026 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3027
3028 if (items > 1)
3029 {
3030 av_extend (coro->args, items - 1 + ix - 1);
3031
3032 if (ix)
3033 {
3034 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3035 cb = cv_coro_run;
3036 }
3037
3038 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3039
3040 for (i = 2; i < items; i++)
3041 av_push (coro->args, newSVsv (ST (i)));
3042 }
3043}
3044 OUTPUT:
3045 RETVAL 3485 RETVAL
3046 3486
3047void 3487void
3048transfer (...) 3488transfer (...)
3049 PROTOTYPE: $$ 3489 PROTOTYPE: $$
3050 CODE: 3490 CODE:
3051 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3491 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3052
3053bool
3054_destroy (SV *coro_sv)
3055 CODE:
3056 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3057 OUTPUT:
3058 RETVAL
3059 3492
3060void 3493void
3061_exit (int code) 3494_exit (int code)
3062 PROTOTYPE: $ 3495 PROTOTYPE: $
3063 CODE: 3496 CODE:
… …
3139 CODE: 3572 CODE:
3140{ 3573{
3141 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3574 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3142 { 3575 {
3143 struct coro *current = SvSTATE_current; 3576 struct coro *current = SvSTATE_current;
3577 struct CoroSLF slf_save;
3144 3578
3145 if (current != coro) 3579 if (current != coro)
3146 { 3580 {
3147 PUTBACK; 3581 PUTBACK;
3148 save_perl (aTHX_ current); 3582 save_perl (aTHX_ current);
3149 load_perl (aTHX_ coro); 3583 load_perl (aTHX_ coro);
3584 /* the coro is most likely in an active SLF call.
3585 * while not strictly required (the code we execute is
3586 * not allowed to call any SLF functions), it's cleaner
3587 * to reinitialise the slf_frame and restore it later.
3588 * This might one day allow us to actually do SLF calls
3589 * from code executed here.
3590 */
3591 slf_save = slf_frame;
3592 slf_frame.prepare = 0;
3150 SPAGAIN; 3593 SPAGAIN;
3151 } 3594 }
3152 3595
3153 PUSHSTACK; 3596 PUSHSTACK;
3154 3597
… …
3164 SPAGAIN; 3607 SPAGAIN;
3165 3608
3166 if (current != coro) 3609 if (current != coro)
3167 { 3610 {
3168 PUTBACK; 3611 PUTBACK;
3612 slf_frame = slf_save;
3169 save_perl (aTHX_ coro); 3613 save_perl (aTHX_ coro);
3170 load_perl (aTHX_ current); 3614 load_perl (aTHX_ current);
3171 SPAGAIN; 3615 SPAGAIN;
3172 } 3616 }
3173 } 3617 }
… …
3178 PROTOTYPE: $ 3622 PROTOTYPE: $
3179 ALIAS: 3623 ALIAS:
3180 is_ready = CF_READY 3624 is_ready = CF_READY
3181 is_running = CF_RUNNING 3625 is_running = CF_RUNNING
3182 is_new = CF_NEW 3626 is_new = CF_NEW
3183 is_destroyed = CF_DESTROYED 3627 is_destroyed = CF_ZOMBIE
3628 is_zombie = CF_ZOMBIE
3184 is_suspended = CF_SUSPENDED 3629 is_suspended = CF_SUSPENDED
3185 CODE: 3630 CODE:
3186 RETVAL = boolSV (coro->flags & ix); 3631 RETVAL = boolSV (coro->flags & ix);
3187 OUTPUT: 3632 OUTPUT:
3188 RETVAL 3633 RETVAL
3189 3634
3190void 3635void
3191throw (Coro::State self, SV *throw = &PL_sv_undef) 3636throw (Coro::State self, SV *exception = &PL_sv_undef)
3192 PROTOTYPE: $;$ 3637 PROTOTYPE: $;$
3193 CODE: 3638 CODE:
3194{ 3639{
3195 struct coro *current = SvSTATE_current; 3640 struct coro *current = SvSTATE_current;
3196 SV **throwp = self == current ? &CORO_THROW : &self->except; 3641 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3197 SvREFCNT_dec (*throwp); 3642 SvREFCNT_dec (*exceptionp);
3198 SvGETMAGIC (throw); 3643 SvGETMAGIC (exception);
3199 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3644 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3200} 3645}
3201 3646
3202void 3647void
3203api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3648api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3204 PROTOTYPE: $;$ 3649 PROTOTYPE: $;$
… …
3259 3704
3260void 3705void
3261cancel (Coro::State self) 3706cancel (Coro::State self)
3262 CODE: 3707 CODE:
3263 coro_state_destroy (aTHX_ self); 3708 coro_state_destroy (aTHX_ self);
3264 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ 3709
3710SV *
3711enable_times (int enabled = enable_times)
3712 CODE:
3713{
3714 RETVAL = boolSV (enable_times);
3715
3716 if (enabled != enable_times)
3717 {
3718 enable_times = enabled;
3719
3720 coro_times_update ();
3721 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3722 }
3723}
3724 OUTPUT:
3725 RETVAL
3726
3727void
3728times (Coro::State self)
3729 PPCODE:
3730{
3731 struct coro *current = SvSTATE (coro_current);
3732
3733 if (ecb_expect_false (current == self))
3734 {
3735 coro_times_update ();
3736 coro_times_add (SvSTATE (coro_current));
3737 }
3738
3739 EXTEND (SP, 2);
3740 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3741 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3742
3743 if (ecb_expect_false (current == self))
3744 coro_times_sub (SvSTATE (coro_current));
3745}
3746
3747void
3748swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3749 CODE:
3750{
3751 struct coro *current = SvSTATE_current;
3752
3753 if (current == coro)
3754 SWAP_SVS (current);
3755
3756 if (!coro->swap_sv)
3757 coro->swap_sv = newAV ();
3758
3759 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3760 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3761
3762 if (current == coro)
3763 SWAP_SVS (current);
3764}
3265 3765
3266 3766
3267MODULE = Coro::State PACKAGE = Coro 3767MODULE = Coro::State PACKAGE = Coro
3268 3768
3269BOOT: 3769BOOT:
3270{ 3770{
3271 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3771 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3272 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3772 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3273 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3773 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3274 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3275 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3774 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3276 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3775 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3277 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3776 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3278 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3777 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3279 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3778 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3280 3779
3281 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3780 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3282 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3781 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3283 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3782 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3284 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3783 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3285 3784
3286 coro_stash = gv_stashpv ("Coro", TRUE); 3785 coro_stash = gv_stashpv ("Coro", TRUE);
3287 3786
3288 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3787 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3289 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3788 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3290 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3789 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3308 sv_setiv (sv, (IV)&coroapi); 3807 sv_setiv (sv, (IV)&coroapi);
3309 SvREADONLY_on (sv); 3808 SvREADONLY_on (sv);
3310 } 3809 }
3311} 3810}
3312 3811
3812SV *
3813async (...)
3814 PROTOTYPE: &@
3815 CODE:
3816 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3817 api_ready (aTHX_ RETVAL);
3818 OUTPUT:
3819 RETVAL
3820
3821void
3822_destroy (Coro::State coro)
3823 CODE:
3824 /* used by the manager thread */
3825 coro_state_destroy (aTHX_ coro);
3826
3827void
3828on_destroy (Coro::State coro, SV *cb)
3829 CODE:
3830 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3831
3832void
3833join (...)
3834 CODE:
3835 CORO_EXECUTE_SLF_XS (slf_init_join);
3836
3313void 3837void
3314terminate (...) 3838terminate (...)
3315 CODE: 3839 CODE:
3316 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3840 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3841
3842void
3843cancel (...)
3844 CODE:
3845 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3846
3847int
3848safe_cancel (Coro::State self, ...)
3849 C_ARGS: aTHX_ self, &ST (1), items - 1
3317 3850
3318void 3851void
3319schedule (...) 3852schedule (...)
3320 CODE: 3853 CODE:
3321 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3854 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3351_set_readyhook (SV *hook) 3884_set_readyhook (SV *hook)
3352 PROTOTYPE: $ 3885 PROTOTYPE: $
3353 CODE: 3886 CODE:
3354 SvREFCNT_dec (coro_readyhook); 3887 SvREFCNT_dec (coro_readyhook);
3355 SvGETMAGIC (hook); 3888 SvGETMAGIC (hook);
3889 if (SvOK (hook))
3890 {
3356 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3891 coro_readyhook = newSVsv (hook);
3892 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3893 }
3894 else
3895 {
3896 coro_readyhook = 0;
3897 CORO_READYHOOK = 0;
3898 }
3357 3899
3358int 3900int
3359prio (Coro::State coro, int newprio = 0) 3901prio (Coro::State coro, int newprio = 0)
3360 PROTOTYPE: $;$ 3902 PROTOTYPE: $;$
3361 ALIAS: 3903 ALIAS:
… …
3367 if (items > 1) 3909 if (items > 1)
3368 { 3910 {
3369 if (ix) 3911 if (ix)
3370 newprio = coro->prio - newprio; 3912 newprio = coro->prio - newprio;
3371 3913
3372 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3914 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3373 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3915 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3374 3916
3375 coro->prio = newprio; 3917 coro->prio = newprio;
3376 } 3918 }
3377} 3919}
3378 OUTPUT: 3920 OUTPUT:
… …
3425 for (i = 1; i < items; ++i) 3967 for (i = 1; i < items; ++i)
3426 av_push (av, SvREFCNT_inc_NN (ST (i))); 3968 av_push (av, SvREFCNT_inc_NN (ST (i)));
3427 3969
3428 if ((SV *)hv == &PL_sv_undef) 3970 if ((SV *)hv == &PL_sv_undef)
3429 { 3971 {
3430 PUSHMARK (SP); 3972 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3431 EXTEND (SP, 2);
3432 PUSHs (sv_Coro);
3433 PUSHs ((SV *)cv_pool_handler);
3434 PUTBACK;
3435 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3436 SPAGAIN;
3437
3438 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3973 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3974 SvREFCNT_dec (sv);
3439 } 3975 }
3440 3976
3441 { 3977 {
3442 struct coro *coro = SvSTATE_hv (hv); 3978 struct coro *coro = SvSTATE_hv (hv);
3443 3979
… …
3477 CODE: 4013 CODE:
3478{ 4014{
3479 struct coro *coro = SvSTATE_current; 4015 struct coro *coro = SvSTATE_current;
3480 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4016 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3481 4017
3482 block = (SV *)coro_sv_2cv (aTHX_ block); 4018 block = s_get_cv_croak (block);
3483 4019
3484 if (!*avp) 4020 if (!*avp)
3485 *avp = newAV (); 4021 *avp = newAV ();
3486 4022
3487 av_push (*avp, SvREFCNT_inc (block)); 4023 av_push (*avp, SvREFCNT_inc (block));
… …
3687 4223
3688void 4224void
3689_register (char *target, char *proto, SV *req) 4225_register (char *target, char *proto, SV *req)
3690 CODE: 4226 CODE:
3691{ 4227{
3692 CV *req_cv = coro_sv_2cv (aTHX_ req); 4228 SV *req_cv = s_get_cv_croak (req);
3693 /* newXSproto doesn't return the CV on 5.8 */ 4229 /* newXSproto doesn't return the CV on 5.8 */
3694 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4230 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3695 sv_setpv ((SV *)slf_cv, proto); 4231 sv_setpv ((SV *)slf_cv, proto);
3696 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4232 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3697} 4233}
3698 4234
4235MODULE = Coro::State PACKAGE = Coro::Select
4236
4237void
4238patch_pp_sselect ()
4239 CODE:
4240 if (!coro_old_pp_sselect)
4241 {
4242 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4243 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4244 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4245 }
4246
4247void
4248unpatch_pp_sselect ()
4249 CODE:
4250 if (coro_old_pp_sselect)
4251 {
4252 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4253 coro_old_pp_sselect = 0;
4254 }
4255

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