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Comparing Coro/Coro/State.xs (file contents):
Revision 1.337 by root, Fri Dec 5 18:26:10 2008 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
163 101
102/* used in state.h */
103#define VAR(name,type) VARx(name, PL_ ## name, type)
104
105#ifdef __linux
106# include <time.h> /* for timespec */
107# include <syscall.h> /* for SYS_* */
108# ifdef SYS_clock_gettime
109# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
110# define CORO_CLOCK_MONOTONIC 1
111# define CORO_CLOCK_THREAD_CPUTIME_ID 3
112# endif
113#endif
114
164static 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]);
165 117
166/* we hijack an hopefully unused CV flag for our purposes */ 118/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 119#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 120static OP *pp_slf (pTHX);
121static void slf_destroy (pTHX_ struct coro *coro);
169 122
170static U32 cctx_gen; 123static U32 cctx_gen;
171static size_t cctx_stacksize = CORO_STACKSIZE; 124static size_t cctx_stacksize = CORO_STACKSIZE;
172static struct CoroAPI coroapi; 125static struct CoroAPI coroapi;
173static AV *main_mainstack; /* used to differentiate between $main and others */ 126static AV *main_mainstack; /* used to differentiate between $main and others */
… …
190static SV *sv_pool_size; 143static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */ 144static SV *sv_async_pool_idle; /* description string */
192static AV *av_async_pool; /* idle pool */ 145static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */ 146static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler; 147static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
196 148
197/* Coro::AnyEvent */ 149/* Coro::AnyEvent */
198static SV *sv_activity; 150static SV *sv_activity;
199 151
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
200static struct coro_cctx *cctx_first; 158static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 159static int cctx_count, cctx_idle;
202 160
203enum { 161enum
162{
204 CC_MAPPED = 0x01, 163 CC_MAPPED = 0x01,
205 CC_NOREUSE = 0x02, /* throw this away after tracing */ 164 CC_NOREUSE = 0x02, /* throw this away after tracing */
206 CC_TRACE = 0x04, 165 CC_TRACE = 0x04,
207 CC_TRACE_SUB = 0x08, /* trace sub calls */ 166 CC_TRACE_SUB = 0x08, /* trace sub calls */
208 CC_TRACE_LINE = 0x10, /* trace each statement */ 167 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
229 int valgrind_id; 188 int valgrind_id;
230#endif 189#endif
231 unsigned char flags; 190 unsigned char flags;
232} coro_cctx; 191} coro_cctx;
233 192
234coro_cctx *cctx_current; /* the currently running cctx */ 193static coro_cctx *cctx_current; /* the currently running cctx */
235 194
236/*****************************************************************************/ 195/*****************************************************************************/
237 196
197static MGVTBL coro_state_vtbl;
198
238enum { 199enum
200{
239 CF_RUNNING = 0x0001, /* coroutine is running */ 201 CF_RUNNING = 0x0001, /* coroutine is running */
240 CF_READY = 0x0002, /* coroutine is ready */ 202 CF_READY = 0x0002, /* coroutine is ready */
241 CF_NEW = 0x0004, /* has never been switched to */ 203 CF_NEW = 0x0004, /* has never been switched to */
242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 204 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
205 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
206 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
243}; 207};
244 208
245/* 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 */
246typedef struct 210typedef struct
247{ 211{
248 SV *defsv;
249 AV *defav;
250 SV *errsv;
251 SV *irsgv;
252 HV *hinthv;
253#define VAR(name,type) type name; 212#define VARx(name,expr,type) type name;
254# include "state.h" 213# include "state.h"
255#undef VAR 214#undef VARx
256} perl_slots; 215} perl_slots;
257 216
217// how many context stack entries do we need for perl_slots
258#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))
259 219
260/* this is a structure representing a perl-level coroutine */ 220/* this is a structure representing a perl-level coroutine */
261struct coro { 221struct coro
222{
262 /* the C coroutine allocated to this perl coroutine, if any */ 223 /* the C coroutine allocated to this perl coroutine, if any */
263 coro_cctx *cctx; 224 coro_cctx *cctx;
225
226 /* ready queue */
227 struct coro *next_ready;
264 228
265 /* state data */ 229 /* state data */
266 struct CoroSLF slf_frame; /* saved slf frame */ 230 struct CoroSLF slf_frame; /* saved slf frame */
267 AV *mainstack; 231 AV *mainstack;
268 perl_slots *slot; /* basically the saved sp */ 232 perl_slots *slot; /* basically the saved sp */
269 233
270 CV *startcv; /* the CV to execute */ 234 CV *startcv; /* the CV to execute */
271 AV *args; /* data associated with this coroutine (initial args) */ 235 AV *args; /* data associated with this coroutine (initial args) */
272 int refcnt; /* coroutines are refcounted, yes */
273 int flags; /* CF_ flags */ 236 int flags; /* CF_ flags */
274 HV *hv; /* the perl hash associated with this coro, if any */ 237 HV *hv; /* the perl hash associated with this coro, if any */
275 void (*on_destroy)(pTHX_ struct coro *coro);
276 238
277 /* statistics */ 239 /* statistics */
278 int usecount; /* number of transfers to this coro */ 240 int usecount; /* number of transfers to this coro */
279 241
280 /* coro process data */ 242 /* coro process data */
281 int prio; 243 int prio;
282 SV *except; /* exception to be thrown */ 244 SV *except; /* exception to be thrown */
283 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 */
284 248
285 /* async_pool */ 249 /* async_pool */
286 SV *saved_deffh; 250 SV *saved_deffh;
287 SV *invoke_cb; 251 SV *invoke_cb;
288 AV *invoke_av; 252 AV *invoke_av;
289 253
254 /* on_enter/on_leave */
255 AV *on_enter;
256 AV *on_leave;
257
258 /* swap_sv */
259 AV *swap_sv;
260
261 /* times */
262 coro_ts t_cpu, t_real;
263
290 /* linked list */ 264 /* linked list */
291 struct coro *next, *prev; 265 struct coro *next, *prev;
292}; 266};
293 267
294typedef struct coro *Coro__State; 268typedef struct coro *Coro__State;
295typedef struct coro *Coro__State_or_hashref; 269typedef struct coro *Coro__State_or_hashref;
296 270
297/* the following variables are effectively part of the perl context */ 271/* the following variables are effectively part of the perl context */
298/* and get copied between struct coro and these variables */ 272/* and get copied between struct coro and these variables */
299/* the mainr easonw e don't support windows process emulation */ 273/* the main reason we don't support windows process emulation */
300static struct CoroSLF slf_frame; /* the current slf frame */ 274static struct CoroSLF slf_frame; /* the current slf frame */
301 275
302/** Coro ********************************************************************/ 276/** Coro ********************************************************************/
303 277
304#define PRIO_MAX 3 278#define CORO_PRIO_MAX 3
305#define PRIO_HIGH 1 279#define CORO_PRIO_HIGH 1
306#define PRIO_NORMAL 0 280#define CORO_PRIO_NORMAL 0
307#define PRIO_LOW -1 281#define CORO_PRIO_LOW -1
308#define PRIO_IDLE -3 282#define CORO_PRIO_IDLE -3
309#define PRIO_MIN -4 283#define CORO_PRIO_MIN -4
310 284
311/* for Coro.pm */ 285/* for Coro.pm */
312static SV *coro_current; 286static SV *coro_current;
313static SV *coro_readyhook; 287static SV *coro_readyhook;
314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 288static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315static CV *cv_coro_run, *cv_coro_terminate; 289static CV *cv_coro_run;
316static struct coro *coro_first; 290static struct coro *coro_first;
317#define coro_nready coroapi.nready 291#define coro_nready coroapi.nready
318 292
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
319/** lowlevel stuff **********************************************************/ 386/** lowlevel stuff **********************************************************/
320 387
321static SV * 388static SV * ecb_noinline
322coro_get_sv (pTHX_ const char *name, int create) 389coro_get_sv (pTHX_ const char *name, int create)
323{ 390{
324#if PERL_VERSION_ATLEAST (5,10,0) 391#if PERL_VERSION_ATLEAST (5,10,0)
325 /* 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 */
326 get_sv (name, create); 393 get_sv (name, create);
327#endif 394#endif
328 return get_sv (name, create); 395 return get_sv (name, create);
329} 396}
330 397
331static AV * 398static AV * ecb_noinline
332coro_get_av (pTHX_ const char *name, int create) 399coro_get_av (pTHX_ const char *name, int create)
333{ 400{
334#if PERL_VERSION_ATLEAST (5,10,0) 401#if PERL_VERSION_ATLEAST (5,10,0)
335 /* 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 */
336 get_av (name, create); 403 get_av (name, create);
337#endif 404#endif
338 return get_av (name, create); 405 return get_av (name, create);
339} 406}
340 407
341static HV * 408static HV * ecb_noinline
342coro_get_hv (pTHX_ const char *name, int create) 409coro_get_hv (pTHX_ const char *name, int create)
343{ 410{
344#if PERL_VERSION_ATLEAST (5,10,0) 411#if PERL_VERSION_ATLEAST (5,10,0)
345 /* 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 */
346 get_hv (name, create); 413 get_hv (name, create);
347#endif 414#endif
348 return get_hv (name, create); 415 return get_hv (name, create);
349} 416}
350 417
351/* may croak */ 418ECB_INLINE void
352INLINE CV * 419coro_times_update ()
353coro_sv_2cv (pTHX_ SV *sv)
354{ 420{
355 HV *st; 421#ifdef coro_clock_gettime
356 GV *gvp; 422 struct timespec ts;
357 return sv_2cv (sv, &st, &gvp, 0); 423
424 ts.tv_sec = ts.tv_nsec = 0;
425 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
426 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
427
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];
358} 463}
359 464
360/*****************************************************************************/ 465/*****************************************************************************/
361/* magic glue */ 466/* magic glue */
362 467
363#define CORO_MAGIC_type_cv 26 468#define CORO_MAGIC_type_cv 26
364#define CORO_MAGIC_type_state PERL_MAGIC_ext 469#define CORO_MAGIC_type_state PERL_MAGIC_ext
365 470
366#define CORO_MAGIC_NN(sv, type) \ 471#define CORO_MAGIC_NN(sv, type) \
367 (expect_true (SvMAGIC (sv)->mg_type == type) \ 472 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
368 ? SvMAGIC (sv) \ 473 ? SvMAGIC (sv) \
369 : mg_find (sv, type)) 474 : mg_find (sv, type))
370 475
371#define CORO_MAGIC(sv, type) \ 476#define CORO_MAGIC(sv, type) \
372 (expect_true (SvMAGIC (sv)) \ 477 (ecb_expect_true (SvMAGIC (sv)) \
373 ? CORO_MAGIC_NN (sv, type) \ 478 ? CORO_MAGIC_NN (sv, type) \
374 : 0) 479 : 0)
375 480
376#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)
377#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)
378 483
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
379INLINE struct coro * 499ECB_INLINE struct coro *
380SvSTATE_ (pTHX_ SV *coro) 500SvSTATE_ (pTHX_ SV *coro)
381{ 501{
382 HV *stash;
383 MAGIC *mg; 502 MAGIC *mg;
384 503
385 if (SvROK (coro)) 504 if (SvROK (coro))
386 coro = SvRV (coro); 505 coro = SvRV (coro);
387 506
388 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 507 mg = SvSTATEhv_p (aTHX_ coro);
508 if (!mg)
389 croak ("Coro::State object required"); 509 croak ("Coro::State object required");
390 510
391 stash = SvSTASH (coro);
392 if (expect_false (stash != coro_stash && stash != coro_state_stash))
393 {
394 /* very slow, but rare, check */
395 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
396 croak ("Coro::State object required");
397 }
398
399 mg = CORO_MAGIC_state (coro);
400 return (struct coro *)mg->mg_ptr; 511 return (struct coro *)mg->mg_ptr;
401} 512}
402 513
403#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 514#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
404 515
… …
407#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 518#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
408 519
409/*****************************************************************************/ 520/*****************************************************************************/
410/* padlist management and caching */ 521/* padlist management and caching */
411 522
412static AV * 523ECB_INLINE AV *
413coro_derive_padlist (pTHX_ CV *cv) 524coro_derive_padlist (pTHX_ CV *cv)
414{ 525{
415 AV *padlist = CvPADLIST (cv); 526 AV *padlist = CvPADLIST (cv);
416 AV *newpadlist, *newpad; 527 AV *newpadlist, *newpad;
417 528
… …
429 av_store (newpadlist, 1, (SV *)newpad); 540 av_store (newpadlist, 1, (SV *)newpad);
430 541
431 return newpadlist; 542 return newpadlist;
432} 543}
433 544
434static void 545ECB_INLINE void
435free_padlist (pTHX_ AV *padlist) 546free_padlist (pTHX_ AV *padlist)
436{ 547{
437 /* may be during global destruction */ 548 /* may be during global destruction */
438 if (!IN_DESTRUCT) 549 if (!IN_DESTRUCT)
439 { 550 {
… …
463coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 574coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464{ 575{
465 AV *padlist; 576 AV *padlist;
466 AV *av = (AV *)mg->mg_obj; 577 AV *av = (AV *)mg->mg_obj;
467 578
579 /* perl manages to free our internal AV and _then_ call us */
580 if (IN_DESTRUCT)
581 return 0;
582
468 /* casting is fun. */ 583 /* casting is fun. */
469 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 584 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
470 free_padlist (aTHX_ padlist); 585 free_padlist (aTHX_ padlist);
471 586
472 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 587 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
… …
478 0, 0, 0, 0, 593 0, 0, 0, 0,
479 coro_cv_free 594 coro_cv_free
480}; 595};
481 596
482/* the next two functions merely cache the padlists */ 597/* the next two functions merely cache the padlists */
483static void 598ECB_INLINE void
484get_padlist (pTHX_ CV *cv) 599get_padlist (pTHX_ CV *cv)
485{ 600{
486 MAGIC *mg = CORO_MAGIC_cv (cv); 601 MAGIC *mg = CORO_MAGIC_cv (cv);
487 AV *av; 602 AV *av;
488 603
489 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 604 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
490 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 605 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
491 else 606 else
492 { 607 {
493#if CORO_PREFER_PERL_FUNCTIONS 608#if CORO_PREFER_PERL_FUNCTIONS
494 /* this is probably cleaner? but also slower! */ 609 /* this is probably cleaner? but also slower! */
… …
501 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 616 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
502#endif 617#endif
503 } 618 }
504} 619}
505 620
506static void 621ECB_INLINE void
507put_padlist (pTHX_ CV *cv) 622put_padlist (pTHX_ CV *cv)
508{ 623{
509 MAGIC *mg = CORO_MAGIC_cv (cv); 624 MAGIC *mg = CORO_MAGIC_cv (cv);
510 AV *av; 625 AV *av;
511 626
512 if (expect_false (!mg)) 627 if (ecb_expect_false (!mg))
513 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);
514 629
515 av = (AV *)mg->mg_obj; 630 av = (AV *)mg->mg_obj;
516 631
517 if (expect_false (AvFILLp (av) >= AvMAX (av))) 632 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
518 av_extend (av, AvFILLp (av) + 1); 633 av_extend (av, AvFILLp (av) + 1);
519 634
520 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 635 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
521} 636}
522 637
523/** 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))
690
691static void
692on_enterleave_call (pTHX_ SV *cb);
524 693
525static void 694static void
526load_perl (pTHX_ Coro__State c) 695load_perl (pTHX_ Coro__State c)
527{ 696{
528 perl_slots *slot = c->slot; 697 perl_slots *slot = c->slot;
529 c->slot = 0; 698 c->slot = 0;
530 699
531 PL_mainstack = c->mainstack; 700 PL_mainstack = c->mainstack;
532 701
533 GvSV (PL_defgv) = slot->defsv; 702#if CORO_JIT
534 GvAV (PL_defgv) = slot->defav; 703 load_perl_slots (slot);
535 GvSV (PL_errgv) = slot->errsv; 704#else
536 GvSV (irsgv) = slot->irsgv;
537 GvHV (PL_hintgv) = slot->hinthv;
538
539 #define VAR(name,type) PL_ ## name = slot->name; 705 #define VARx(name,expr,type) expr = slot->name;
540 # include "state.h" 706 # include "state.h"
541 #undef VAR 707 #undef VARx
708#endif
542 709
543 { 710 {
544 dSP; 711 dSP;
545 712
546 CV *cv; 713 CV *cv;
547 714
548 /* now do the ugly restore mess */ 715 /* now do the ugly restore mess */
549 while (expect_true (cv = (CV *)POPs)) 716 while (ecb_expect_true (cv = (CV *)POPs))
550 { 717 {
551 put_padlist (aTHX_ cv); /* mark this padlist as available */ 718 put_padlist (aTHX_ cv); /* mark this padlist as available */
552 CvDEPTH (cv) = PTR2IV (POPs); 719 CvDEPTH (cv) = PTR2IV (POPs);
553 CvPADLIST (cv) = (AV *)POPs; 720 CvPADLIST (cv) = (AV *)POPs;
554 } 721 }
… …
556 PUTBACK; 723 PUTBACK;
557 } 724 }
558 725
559 slf_frame = c->slf_frame; 726 slf_frame = c->slf_frame;
560 CORO_THROW = c->except; 727 CORO_THROW = c->except;
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
737 if (ecb_expect_false (c->on_enter))
738 {
739 int i;
740
741 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
742 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
743 }
744
745 SWAP_SVS (c);
561} 746}
562 747
563static void 748static void
564save_perl (pTHX_ Coro__State c) 749save_perl (pTHX_ Coro__State c)
565{ 750{
751 SWAP_SVS (c);
752
753 if (ecb_expect_false (c->on_leave))
754 {
755 int i;
756
757 for (i = AvFILLp (c->on_leave); i >= 0; --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);
767 }
768
566 c->except = CORO_THROW; 769 c->except = CORO_THROW;
567 c->slf_frame = slf_frame; 770 c->slf_frame = slf_frame;
568 771
569 { 772 {
570 dSP; 773 dSP;
… …
579 782
580 XPUSHs (Nullsv); 783 XPUSHs (Nullsv);
581 /* this loop was inspired by pp_caller */ 784 /* this loop was inspired by pp_caller */
582 for (;;) 785 for (;;)
583 { 786 {
584 while (expect_true (cxix >= 0)) 787 while (ecb_expect_true (cxix >= 0))
585 { 788 {
586 PERL_CONTEXT *cx = &ccstk[cxix--]; 789 PERL_CONTEXT *cx = &ccstk[cxix--];
587 790
588 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 791 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
589 { 792 {
590 CV *cv = cx->blk_sub.cv; 793 CV *cv = cx->blk_sub.cv;
591 794
592 if (expect_true (CvDEPTH (cv))) 795 if (ecb_expect_true (CvDEPTH (cv)))
593 { 796 {
594 EXTEND (SP, 3); 797 EXTEND (SP, 3);
595 PUSHs ((SV *)CvPADLIST (cv)); 798 PUSHs ((SV *)CvPADLIST (cv));
596 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 799 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
597 PUSHs ((SV *)cv); 800 PUSHs ((SV *)cv);
… …
600 get_padlist (aTHX_ cv); 803 get_padlist (aTHX_ cv);
601 } 804 }
602 } 805 }
603 } 806 }
604 807
605 if (expect_true (top_si->si_type == PERLSI_MAIN)) 808 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
606 break; 809 break;
607 810
608 top_si = top_si->si_prev; 811 top_si = top_si->si_prev;
609 ccstk = top_si->si_cxstack; 812 ccstk = top_si->si_cxstack;
610 cxix = top_si->si_cxix; 813 cxix = top_si->si_cxix;
… …
612 815
613 PUTBACK; 816 PUTBACK;
614 } 817 }
615 818
616 /* allocate some space on the context stack for our purposes */ 819 /* allocate some space on the context stack for our purposes */
617 /* we manually unroll here, as usually 2 slots is enough */ 820 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
618 if (SLOT_COUNT >= 1) CXINC;
619 if (SLOT_COUNT >= 2) CXINC;
620 if (SLOT_COUNT >= 3) CXINC;
621 { 821 {
622 int i; 822 unsigned int i;
823
623 for (i = 3; i < SLOT_COUNT; ++i) 824 for (i = 0; i < SLOT_COUNT; ++i)
624 CXINC; 825 CXINC;
625 } 826
626 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 827 cxstack_ix -= SLOT_COUNT; /* undo allocation */
828 }
627 829
628 c->mainstack = PL_mainstack; 830 c->mainstack = PL_mainstack;
629 831
630 { 832 {
631 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 833 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
632 834
633 slot->defav = GvAV (PL_defgv); 835#if CORO_JIT
634 slot->defsv = DEFSV; 836 save_perl_slots (slot);
635 slot->errsv = ERRSV; 837#else
636 slot->irsgv = GvSV (irsgv);
637 slot->hinthv = GvHV (PL_hintgv);
638
639 #define VAR(name,type) slot->name = PL_ ## name; 838 #define VARx(name,expr,type) slot->name = expr;
640 # include "state.h" 839 # include "state.h"
641 #undef VAR 840 #undef VARx
841#endif
642 } 842 }
643} 843}
644 844
645/* 845/*
646 * allocate various perl stacks. This is almost an exact copy 846 * allocate various perl stacks. This is almost an exact copy
… …
652# define coro_init_stacks(thx) init_stacks () 852# define coro_init_stacks(thx) init_stacks ()
653#else 853#else
654static void 854static void
655coro_init_stacks (pTHX) 855coro_init_stacks (pTHX)
656{ 856{
657 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() */
658 PL_curstackinfo->si_type = PERLSI_MAIN; 858 PL_curstackinfo->si_type = PERLSI_MAIN;
659 PL_curstack = PL_curstackinfo->si_stack; 859 PL_curstack = PL_curstackinfo->si_stack;
660 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 860 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
661 861
662 PL_stack_base = AvARRAY(PL_curstack); 862 PL_stack_base = AvARRAY(PL_curstack);
… …
769#endif 969#endif
770 970
771/* 971/*
772 * This overrides the default magic get method of %SIG elements. 972 * This overrides the default magic get method of %SIG elements.
773 * 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
774 * and instead of tryign to save and restore the hash elements, we just provide 974 * and instead of trying to save and restore the hash elements (extremely slow),
775 * readback here. 975 * we just provide our own readback here.
776 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
777 * not expecting this to actually change the hook. This is a potential problem
778 * when a schedule happens then, but we ignore this.
779 */ 976 */
780static int 977static int ecb_cold
781coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 978coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782{ 979{
783 const char *s = MgPV_nolen_const (mg); 980 const char *s = MgPV_nolen_const (mg);
784 981
785 if (*s == '_') 982 if (*s == '_')
… …
797 } 994 }
798 995
799 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 996 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
800} 997}
801 998
802static int 999static int ecb_cold
803coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1000coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
804{ 1001{
805 const char *s = MgPV_nolen_const (mg); 1002 const char *s = MgPV_nolen_const (mg);
806 1003
807 if (*s == '_') 1004 if (*s == '_')
… …
821 } 1018 }
822 1019
823 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1020 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
824} 1021}
825 1022
826static int 1023static int ecb_cold
827coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1024coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
828{ 1025{
829 const char *s = MgPV_nolen_const (mg); 1026 const char *s = MgPV_nolen_const (mg);
830 1027
831 if (*s == '_') 1028 if (*s == '_')
… …
836 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1033 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837 1034
838 if (svp) 1035 if (svp)
839 { 1036 {
840 SV *old = *svp; 1037 SV *old = *svp;
841 *svp = newSVsv (sv); 1038 *svp = SvOK (sv) ? newSVsv (sv) : 0;
842 SvREFCNT_dec (old); 1039 SvREFCNT_dec (old);
843 return 0; 1040 return 0;
844 } 1041 }
845 } 1042 }
846 1043
… …
864slf_check_repeat (pTHX_ struct CoroSLF *frame) 1061slf_check_repeat (pTHX_ struct CoroSLF *frame)
865{ 1062{
866 return 1; 1063 return 1;
867} 1064}
868 1065
869static UNOP coro_setup_op; 1066static UNOP init_perl_op;
870 1067
871static 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 */
872coro_setup (pTHX_ struct coro *coro) 1069init_perl (pTHX_ struct coro *coro)
873{ 1070{
874 /* 1071 /*
875 * emulate part of the perl startup here. 1072 * emulate part of the perl startup here.
876 */ 1073 */
877 coro_init_stacks (aTHX); 1074 coro_init_stacks (aTHX);
… …
884 PL_comppad_name_fill = 0; 1081 PL_comppad_name_fill = 0;
885 PL_comppad_name_floor = 0; 1082 PL_comppad_name_floor = 0;
886 PL_curpm = 0; 1083 PL_curpm = 0;
887 PL_curpad = 0; 1084 PL_curpad = 0;
888 PL_localizing = 0; 1085 PL_localizing = 0;
889 PL_dirty = 0;
890 PL_restartop = 0; 1086 PL_restartop = 0;
891#if PERL_VERSION_ATLEAST (5,10,0) 1087#if PERL_VERSION_ATLEAST (5,10,0)
892 PL_parser = 0; 1088 PL_parser = 0;
893#endif 1089#endif
894 PL_hints = 0; 1090 PL_hints = 0;
895 1091
896 /* recreate the die/warn hooks */ 1092 /* recreate the die/warn hooks */
897 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1093 PL_diehook = SvREFCNT_inc (rv_diehook);
898 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1094 PL_warnhook = SvREFCNT_inc (rv_warnhook);
899 1095
900 GvSV (PL_defgv) = newSV (0); 1096 GvSV (PL_defgv) = newSV (0);
901 GvAV (PL_defgv) = coro->args; coro->args = 0; 1097 GvAV (PL_defgv) = coro->args; coro->args = 0;
902 GvSV (PL_errgv) = newSV (0); 1098 GvSV (PL_errgv) = newSV (0);
903 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);
… …
924 /* 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
925 * 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.
926 */ 1122 */
927 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 */
928 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;
929 1126
930 /* 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 */
931 coro_setup_op.op_next = PL_op; 1128 init_perl_op.op_next = PL_op;
932 coro_setup_op.op_type = OP_ENTERSUB; 1129 init_perl_op.op_type = OP_ENTERSUB;
933 coro_setup_op.op_ppaddr = pp_slf; 1130 init_perl_op.op_ppaddr = pp_slf;
934 /* 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 */
935 1132
936 PL_op = (OP *)&coro_setup_op; 1133 PL_op = (OP *)&init_perl_op;
937 1134
938 /* copy throw, in case it was set before coro_setup */ 1135 /* copy throw, in case it was set before init_perl */
939 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 }
940} 1145}
941 1146
942static void 1147static void
943coro_unwind_stacks (pTHX) 1148coro_unwind_stacks (pTHX)
944{ 1149{
… …
959 dounwind (-1); 1164 dounwind (-1);
960 } 1165 }
961} 1166}
962 1167
963static void 1168static void
964coro_destruct_perl (pTHX_ struct coro *coro) 1169destroy_perl (pTHX_ struct coro *coro)
965{ 1170{
1171 SV *svf [9];
1172
1173 {
1174 SV *old_current = SvRV (coro_current);
1175 struct coro *current = SvSTATE (old_current);
1176
1177 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1178
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
1184 load_perl (aTHX_ coro);
1185
966 coro_unwind_stacks (aTHX); 1186 coro_unwind_stacks (aTHX);
967 1187
968 SvREFCNT_dec (GvSV (PL_defgv)); 1188 /* restore swapped sv's */
969 SvREFCNT_dec (GvAV (PL_defgv)); 1189 SWAP_SVS (coro);
970 SvREFCNT_dec (GvSV (PL_errgv));
971 SvREFCNT_dec (PL_defoutgv);
972 SvREFCNT_dec (PL_rs);
973 SvREFCNT_dec (GvSV (irsgv));
974 SvREFCNT_dec (GvHV (PL_hintgv));
975 1190
976 SvREFCNT_dec (PL_diehook); 1191 coro_destruct_stacks (aTHX);
977 SvREFCNT_dec (PL_warnhook); 1192
1193 // now save some sv's to be free'd later
1194 svf [0] = GvSV (PL_defgv);
1195 svf [1] = (SV *)GvAV (PL_defgv);
1196 svf [2] = GvSV (PL_errgv);
1197 svf [3] = (SV *)PL_defoutgv;
1198 svf [4] = PL_rs;
1199 svf [5] = GvSV (irsgv);
1200 svf [6] = (SV *)GvHV (PL_hintgv);
1201 svf [7] = PL_diehook;
1202 svf [8] = PL_warnhook;
1203 assert (9 == sizeof (svf) / sizeof (*svf));
1204
1205 SvRV_set (coro_current, old_current);
1206
1207 load_perl (aTHX_ current);
978 1208 }
1209
1210 {
1211 unsigned int i;
1212
1213 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1214 SvREFCNT_dec (svf [i]);
1215
979 SvREFCNT_dec (coro->saved_deffh); 1216 SvREFCNT_dec (coro->saved_deffh);
980 SvREFCNT_dec (coro->rouse_cb); 1217 SvREFCNT_dec (coro->rouse_cb);
981 SvREFCNT_dec (coro->invoke_cb); 1218 SvREFCNT_dec (coro->invoke_cb);
982 SvREFCNT_dec (coro->invoke_av); 1219 SvREFCNT_dec (coro->invoke_av);
983 1220 }
984 coro_destruct_stacks (aTHX);
985} 1221}
986 1222
987INLINE void 1223ECB_INLINE void
988free_coro_mortal (pTHX) 1224free_coro_mortal (pTHX)
989{ 1225{
990 if (expect_true (coro_mortal)) 1226 if (ecb_expect_true (coro_mortal))
991 { 1227 {
992 SvREFCNT_dec (coro_mortal); 1228 SvREFCNT_dec ((SV *)coro_mortal);
993 coro_mortal = 0; 1229 coro_mortal = 0;
994 } 1230 }
995} 1231}
996 1232
997static int 1233static int
… …
1130 1366
1131 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 */
1132} 1368}
1133 1369
1134/* 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 */
1135static void NOINLINE 1371static void ecb_noinline
1136cctx_prepare (pTHX) 1372cctx_prepare (pTHX)
1137{ 1373{
1138 PL_top_env = &PL_start_env; 1374 PL_top_env = &PL_start_env;
1139 1375
1140 if (cctx_current->flags & CC_TRACE) 1376 if (cctx_current->flags & CC_TRACE)
… …
1151 slf_frame.prepare = slf_prepare_set_stacklevel; 1387 slf_frame.prepare = slf_prepare_set_stacklevel;
1152 slf_frame.check = slf_check_set_stacklevel; 1388 slf_frame.check = slf_check_set_stacklevel;
1153} 1389}
1154 1390
1155/* 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 */
1156INLINE void 1392ECB_INLINE void
1157transfer_tail (pTHX) 1393transfer_tail (pTHX)
1158{ 1394{
1159 free_coro_mortal (aTHX); 1395 free_coro_mortal (aTHX);
1160} 1396}
1161 1397
… …
1186 /* 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 */
1187 PL_restartop = PL_op; 1423 PL_restartop = PL_op;
1188 perl_run (PL_curinterp); 1424 perl_run (PL_curinterp);
1189 /* 1425 /*
1190 * 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
1191 * 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.
1192 */ 1429 */
1193 1430
1194 /* 1431 /*
1195 * 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
1196 * 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)
… …
1283cctx_destroy (coro_cctx *cctx) 1520cctx_destroy (coro_cctx *cctx)
1284{ 1521{
1285 if (!cctx) 1522 if (!cctx)
1286 return; 1523 return;
1287 1524
1288 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1525 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1289 1526
1290 --cctx_count; 1527 --cctx_count;
1291 coro_destroy (&cctx->cctx); 1528 coro_destroy (&cctx->cctx);
1292 1529
1293 /* coro_transfer creates new, empty cctx's */ 1530 /* coro_transfer creates new, empty cctx's */
… …
1312#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))
1313 1550
1314static coro_cctx * 1551static coro_cctx *
1315cctx_get (pTHX) 1552cctx_get (pTHX)
1316{ 1553{
1317 while (expect_true (cctx_first)) 1554 while (ecb_expect_true (cctx_first))
1318 { 1555 {
1319 coro_cctx *cctx = cctx_first; 1556 coro_cctx *cctx = cctx_first;
1320 cctx_first = cctx->next; 1557 cctx_first = cctx->next;
1321 --cctx_idle; 1558 --cctx_idle;
1322 1559
1323 if (expect_true (!CCTX_EXPIRED (cctx))) 1560 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1324 return cctx; 1561 return cctx;
1325 1562
1326 cctx_destroy (cctx); 1563 cctx_destroy (cctx);
1327 } 1564 }
1328 1565
… …
1333cctx_put (coro_cctx *cctx) 1570cctx_put (coro_cctx *cctx)
1334{ 1571{
1335 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));
1336 1573
1337 /* free another cctx if overlimit */ 1574 /* free another cctx if overlimit */
1338 if (expect_false (cctx_idle >= cctx_max_idle)) 1575 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1339 { 1576 {
1340 coro_cctx *first = cctx_first; 1577 coro_cctx *first = cctx_first;
1341 cctx_first = first->next; 1578 cctx_first = first->next;
1342 --cctx_idle; 1579 --cctx_idle;
1343 1580
… …
1354static void 1591static void
1355transfer_check (pTHX_ struct coro *prev, struct coro *next) 1592transfer_check (pTHX_ struct coro *prev, struct coro *next)
1356{ 1593{
1357 /* TODO: throwing up here is considered harmful */ 1594 /* TODO: throwing up here is considered harmful */
1358 1595
1359 if (expect_true (prev != next)) 1596 if (ecb_expect_true (prev != next))
1360 { 1597 {
1361 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1598 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1362 croak ("Coro::State::transfer called with a suspended 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,");
1363 1600
1364 if (expect_false (next->flags & CF_RUNNING)) 1601 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1365 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1366
1367 if (expect_false (next->flags & CF_DESTROYED))
1368 croak ("Coro::State::transfer called with destroyed 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,");
1369 1603
1370#if !PERL_VERSION_ATLEAST (5,10,0) 1604#if !PERL_VERSION_ATLEAST (5,10,0)
1371 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1605 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1372 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,");
1373#endif 1607#endif
1374 } 1608 }
1375} 1609}
1376 1610
1377/* always use the TRANSFER macro */ 1611/* always use the TRANSFER macro */
1378static void NOINLINE /* noinline so we have a fixed stackframe */ 1612static void ecb_noinline /* noinline so we have a fixed stackframe */
1379transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1613transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1380{ 1614{
1381 dSTACKLEVEL; 1615 dSTACKLEVEL;
1382 1616
1383 /* sometimes transfer is only called to set idle_sp */ 1617 /* sometimes transfer is only called to set idle_sp */
1384 if (expect_false (!prev)) 1618 if (ecb_expect_false (!prev))
1385 { 1619 {
1386 cctx_current->idle_sp = STACKLEVEL; 1620 cctx_current->idle_sp = STACKLEVEL;
1387 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 */
1388 } 1622 }
1389 else if (expect_true (prev != next)) 1623 else if (ecb_expect_true (prev != next))
1390 { 1624 {
1391 coro_cctx *cctx_prev; 1625 coro_cctx *cctx_prev;
1392 1626
1393 if (expect_false (prev->flags & CF_NEW)) 1627 if (ecb_expect_false (prev->flags & CF_NEW))
1394 { 1628 {
1395 /* create a new empty/source context */ 1629 /* create a new empty/source context */
1396 prev->flags &= ~CF_NEW; 1630 prev->flags &= ~CF_NEW;
1397 prev->flags |= CF_RUNNING; 1631 prev->flags |= CF_RUNNING;
1398 } 1632 }
… …
1401 next->flags |= CF_RUNNING; 1635 next->flags |= CF_RUNNING;
1402 1636
1403 /* first get rid of the old state */ 1637 /* first get rid of the old state */
1404 save_perl (aTHX_ prev); 1638 save_perl (aTHX_ prev);
1405 1639
1406 if (expect_false (next->flags & CF_NEW)) 1640 if (ecb_expect_false (next->flags & CF_NEW))
1407 { 1641 {
1408 /* need to start coroutine */ 1642 /* need to start coroutine */
1409 next->flags &= ~CF_NEW; 1643 next->flags &= ~CF_NEW;
1410 /* setup coroutine call */ 1644 /* setup coroutine call */
1411 coro_setup (aTHX_ next); 1645 init_perl (aTHX_ next);
1412 } 1646 }
1413 else 1647 else
1414 load_perl (aTHX_ next); 1648 load_perl (aTHX_ next);
1415 1649
1416 /* possibly untie and reuse the cctx */ 1650 /* possibly untie and reuse the cctx */
1417 if (expect_true ( 1651 if (ecb_expect_true (
1418 cctx_current->idle_sp == STACKLEVEL 1652 cctx_current->idle_sp == STACKLEVEL
1419 && !(cctx_current->flags & CC_TRACE) 1653 && !(cctx_current->flags & CC_TRACE)
1420 && !force_cctx 1654 && !force_cctx
1421 )) 1655 ))
1422 { 1656 {
1423 /* 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 */
1424 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));
1425 1659
1426 /* 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. */
1427 /* 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 */
1428 if (expect_false (CCTX_EXPIRED (cctx_current))) 1662 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1429 if (expect_true (!next->cctx)) 1663 if (ecb_expect_true (!next->cctx))
1430 next->cctx = cctx_get (aTHX); 1664 next->cctx = cctx_get (aTHX);
1431 1665
1432 cctx_put (cctx_current); 1666 cctx_put (cctx_current);
1433 } 1667 }
1434 else 1668 else
1435 prev->cctx = cctx_current; 1669 prev->cctx = cctx_current;
1436 1670
1437 ++next->usecount; 1671 ++next->usecount;
1438 1672
1439 cctx_prev = cctx_current; 1673 cctx_prev = cctx_current;
1440 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1674 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1441 1675
1442 next->cctx = 0; 1676 next->cctx = 0;
1443 1677
1444 if (expect_false (cctx_prev != cctx_current)) 1678 if (ecb_expect_false (cctx_prev != cctx_current))
1445 { 1679 {
1446 cctx_prev->top_env = PL_top_env; 1680 cctx_prev->top_env = PL_top_env;
1447 PL_top_env = cctx_current->top_env; 1681 PL_top_env = cctx_current->top_env;
1448 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1682 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1449 } 1683 }
… …
1455#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))
1456#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1690#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1457 1691
1458/** high level stuff ********************************************************/ 1692/** high level stuff ********************************************************/
1459 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 */
1460static int 1696static void
1697coro_call_on_destroy (pTHX_ struct coro *coro);
1698
1699static void
1461coro_state_destroy (pTHX_ struct coro *coro) 1700coro_state_destroy (pTHX_ struct coro *coro)
1462{ 1701{
1463 if (coro->flags & CF_DESTROYED) 1702 if (coro->flags & CF_ZOMBIE)
1464 return 0; 1703 return;
1465 1704
1466 if (coro->on_destroy)
1467 coro->on_destroy (aTHX_ coro); 1705 slf_destroy (aTHX_ coro);
1468 1706
1469 coro->flags |= CF_DESTROYED; 1707 coro->flags |= CF_ZOMBIE;
1470 1708
1471 if (coro->flags & CF_READY) 1709 if (coro->flags & CF_READY)
1472 { 1710 {
1473 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1711 /* reduce nready, as destroying a ready coro effectively unreadies it */
1474 /* alternative: look through all ready queues and remove the coro */ 1712 /* alternative: look through all ready queues and remove the coro */
1475 --coro_nready; 1713 --coro_nready;
1476 } 1714 }
1477 else 1715 else
1478 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;
1479 1721
1480 if (coro->mainstack 1722 if (coro->mainstack
1481 && coro->mainstack != main_mainstack 1723 && coro->mainstack != main_mainstack
1482 && coro->slot 1724 && coro->slot
1483 && !PL_dirty) 1725 && !PL_dirty)
1484 {
1485 struct coro temp;
1486
1487 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1488
1489 save_perl (aTHX_ &temp);
1490 load_perl (aTHX_ coro);
1491
1492 coro_destruct_perl (aTHX_ coro); 1726 destroy_perl (aTHX_ coro);
1493
1494 load_perl (aTHX_ &temp);
1495
1496 coro->slot = 0;
1497 }
1498 1727
1499 cctx_destroy (coro->cctx); 1728 cctx_destroy (coro->cctx);
1500 SvREFCNT_dec (coro->startcv); 1729 SvREFCNT_dec (coro->startcv);
1501 SvREFCNT_dec (coro->args); 1730 SvREFCNT_dec (coro->args);
1731 SvREFCNT_dec (coro->swap_sv);
1502 SvREFCNT_dec (CORO_THROW); 1732 SvREFCNT_dec (CORO_THROW);
1503 1733
1504 if (coro->next) coro->next->prev = coro->prev; 1734 coro_call_on_destroy (aTHX_ coro);
1505 if (coro->prev) coro->prev->next = coro->next;
1506 if (coro == coro_first) coro_first = coro->next;
1507 1735
1508 return 1; 1736 /* more destruction mayhem in coro_state_free */
1509} 1737}
1510 1738
1511static int 1739static int
1512coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1740coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1513{ 1741{
1514 struct coro *coro = (struct coro *)mg->mg_ptr; 1742 struct coro *coro = (struct coro *)mg->mg_ptr;
1515 mg->mg_ptr = 0; 1743 mg->mg_ptr = 0;
1516 1744
1517 coro->hv = 0;
1518
1519 if (--coro->refcnt < 0)
1520 {
1521 coro_state_destroy (aTHX_ coro); 1745 coro_state_destroy (aTHX_ coro);
1746 SvREFCNT_dec (coro->on_destroy);
1747 SvREFCNT_dec (coro->status);
1748
1522 Safefree (coro); 1749 Safefree (coro);
1523 }
1524 1750
1525 return 0; 1751 return 0;
1526} 1752}
1527 1753
1528static int 1754static int ecb_cold
1529coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1755coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1530{ 1756{
1531 struct coro *coro = (struct coro *)mg->mg_ptr; 1757 /* called when perl clones the current process the slow way (windows process emulation) */
1532 1758 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1533 ++coro->refcnt; 1759 mg->mg_ptr = 0;
1760 mg->mg_virtual = 0;
1534 1761
1535 return 0; 1762 return 0;
1536} 1763}
1537 1764
1538static MGVTBL coro_state_vtbl = { 1765static MGVTBL coro_state_vtbl = {
… …
1561 1788
1562 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1789 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1563 TRANSFER (ta, 1); 1790 TRANSFER (ta, 1);
1564} 1791}
1565 1792
1566/*****************************************************************************/
1567/* gensub: simple closure generation utility */
1568
1569#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1570
1571/* create a closure from XS, returns a code reference */
1572/* the arg can be accessed via GENSUB_ARG from the callback */
1573/* the callback must use dXSARGS/XSRETURN */
1574static SV *
1575gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1576{
1577 CV *cv = (CV *)newSV (0);
1578
1579 sv_upgrade ((SV *)cv, SVt_PVCV);
1580
1581 CvANON_on (cv);
1582 CvISXSUB_on (cv);
1583 CvXSUB (cv) = xsub;
1584 GENSUB_ARG = arg;
1585
1586 return newRV_noinc ((SV *)cv);
1587}
1588
1589/** Coro ********************************************************************/ 1793/** Coro ********************************************************************/
1590 1794
1591INLINE void 1795ECB_INLINE void
1592coro_enq (pTHX_ struct coro *coro) 1796coro_enq (pTHX_ struct coro *coro)
1593{ 1797{
1594 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1798 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1595}
1596 1799
1597INLINE SV * 1800 SvREFCNT_inc_NN (coro->hv);
1801
1802 coro->next_ready = 0;
1803 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1804 ready [1] = coro;
1805}
1806
1807ECB_INLINE struct coro *
1598coro_deq (pTHX) 1808coro_deq (pTHX)
1599{ 1809{
1600 int prio; 1810 int prio;
1601 1811
1602 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1812 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1603 if (AvFILLp (coro_ready [prio]) >= 0) 1813 {
1604 return av_shift (coro_ready [prio]); 1814 struct coro **ready = coro_ready [prio];
1815
1816 if (ready [0])
1817 {
1818 struct coro *coro = ready [0];
1819 ready [0] = coro->next_ready;
1820 return coro;
1821 }
1822 }
1605 1823
1606 return 0; 1824 return 0;
1825}
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;
1607} 1842}
1608 1843
1609static int 1844static int
1610api_ready (pTHX_ SV *coro_sv) 1845api_ready (pTHX_ SV *coro_sv)
1611{ 1846{
1612 struct coro *coro;
1613 SV *sv_hook;
1614 void (*xs_hook)(void);
1615
1616 coro = SvSTATE (coro_sv); 1847 struct coro *coro = SvSTATE (coro_sv);
1617 1848
1618 if (coro->flags & CF_READY) 1849 if (coro->flags & CF_READY)
1619 return 0; 1850 return 0;
1620 1851
1621 coro->flags |= CF_READY; 1852 coro->flags |= CF_READY;
1622 1853
1623 sv_hook = coro_nready ? 0 : coro_readyhook;
1624 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1625
1626 coro_enq (aTHX_ coro); 1854 coro_enq (aTHX_ coro);
1627 ++coro_nready;
1628 1855
1629 if (sv_hook) 1856 if (!coro_nready++)
1630 { 1857 if (coroapi.readyhook)
1631 dSP; 1858 coroapi.readyhook ();
1632
1633 ENTER;
1634 SAVETMPS;
1635
1636 PUSHMARK (SP);
1637 PUTBACK;
1638 call_sv (sv_hook, G_VOID | G_DISCARD);
1639
1640 FREETMPS;
1641 LEAVE;
1642 }
1643
1644 if (xs_hook)
1645 xs_hook ();
1646 1859
1647 return 1; 1860 return 1;
1648} 1861}
1649 1862
1650static int 1863static int
… …
1652{ 1865{
1653 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1866 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1654} 1867}
1655 1868
1656/* expects to own a reference to next->hv */ 1869/* expects to own a reference to next->hv */
1657INLINE void 1870ECB_INLINE void
1658prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1871prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1659{ 1872{
1660 SV *prev_sv = SvRV (coro_current); 1873 SV *prev_sv = SvRV (coro_current);
1661 1874
1662 ta->prev = SvSTATE_hv (prev_sv); 1875 ta->prev = SvSTATE_hv (prev_sv);
… …
1673static void 1886static void
1674prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1887prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1675{ 1888{
1676 for (;;) 1889 for (;;)
1677 { 1890 {
1678 SV *next_sv = coro_deq (aTHX); 1891 struct coro *next = coro_deq (aTHX);
1679 1892
1680 if (expect_true (next_sv)) 1893 if (ecb_expect_true (next))
1681 { 1894 {
1682 struct coro *next = SvSTATE_hv (next_sv);
1683
1684 /* cannot transfer to destroyed coros, skip and look for next */ 1895 /* cannot transfer to destroyed coros, skip and look for next */
1685 if (expect_false (next->flags & CF_DESTROYED)) 1896 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1686 SvREFCNT_dec (next_sv); /* 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 */
1687 else 1898 else
1688 { 1899 {
1689 next->flags &= ~CF_READY; 1900 next->flags &= ~CF_READY;
1690 --coro_nready; 1901 --coro_nready;
1691 1902
… …
1697 { 1908 {
1698 /* nothing to schedule: call the idle handler */ 1909 /* nothing to schedule: call the idle handler */
1699 if (SvROK (sv_idle) 1910 if (SvROK (sv_idle)
1700 && SvOBJECT (SvRV (sv_idle))) 1911 && SvOBJECT (SvRV (sv_idle)))
1701 { 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
1702 ++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 */
1703 api_ready (aTHX_ SvRV (sv_idle)); 1917 api_ready (aTHX_ SvRV (sv_idle));
1704 --coro_nready; 1918 --coro_nready;
1705 } 1919 }
1706 else 1920 else
1707 { 1921 {
1922 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1708 dSP; 1923 dSP;
1709 1924
1710 ENTER; 1925 ENTER;
1711 SAVETMPS; 1926 SAVETMPS;
1712 1927
… …
1719 } 1934 }
1720 } 1935 }
1721 } 1936 }
1722} 1937}
1723 1938
1724INLINE void 1939ECB_INLINE void
1725prepare_cede (pTHX_ struct coro_transfer_args *ta) 1940prepare_cede (pTHX_ struct coro_transfer_args *ta)
1726{ 1941{
1727 api_ready (aTHX_ coro_current); 1942 api_ready (aTHX_ coro_current);
1728 prepare_schedule (aTHX_ ta); 1943 prepare_schedule (aTHX_ ta);
1729} 1944}
1730 1945
1731INLINE void 1946ECB_INLINE void
1732prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1947prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1733{ 1948{
1734 SV *prev = SvRV (coro_current); 1949 SV *prev = SvRV (coro_current);
1735 1950
1736 if (coro_nready) 1951 if (coro_nready)
… …
1766{ 1981{
1767 struct coro_transfer_args ta; 1982 struct coro_transfer_args ta;
1768 1983
1769 prepare_cede (aTHX_ &ta); 1984 prepare_cede (aTHX_ &ta);
1770 1985
1771 if (expect_true (ta.prev != ta.next)) 1986 if (ecb_expect_true (ta.prev != ta.next))
1772 { 1987 {
1773 TRANSFER (ta, 1); 1988 TRANSFER (ta, 1);
1774 return 1; 1989 return 1;
1775 } 1990 }
1776 else 1991 else
… …
1819 coro->slot->runops = RUNOPS_DEFAULT; 2034 coro->slot->runops = RUNOPS_DEFAULT;
1820 } 2035 }
1821} 2036}
1822 2037
1823static 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
1824coro_call_on_destroy (pTHX_ struct coro *coro) 2115coro_call_on_destroy (pTHX_ struct coro *coro)
1825{ 2116{
1826 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2117 AV *od = coro->on_destroy;
1827 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1828 2118
1829 if (on_destroyp) 2119 if (!od)
1830 { 2120 return;
1831 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1832 2121
1833 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
1834 { 2130 {
1835 dSP; /* don't disturb outer sp */ 2131 dSP; /* don't disturb outer sp */
1836 SV *cb = av_pop (on_destroy);
1837
1838 PUSHMARK (SP); 2132 PUSHMARK (SP);
1839 2133
1840 if (statusp) 2134 if (coro->status)
1841 { 2135 {
1842 int i; 2136 PUTBACK;
1843 AV *status = (AV *)SvRV (*statusp); 2137 coro_push_av (aTHX_ coro->status, G_ARRAY);
1844 EXTEND (SP, AvFILLp (status) + 1); 2138 SPAGAIN;
1845
1846 for (i = 0; i <= AvFILLp (status); ++i)
1847 PUSHs (AvARRAY (status)[i]);
1848 } 2139 }
1849 2140
1850 PUTBACK; 2141 PUTBACK;
1851 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2142 call_sv (cb, G_VOID | G_DISCARD);
1852 } 2143 }
1853 } 2144 }
1854} 2145}
1855 2146
1856static void 2147static void
1857slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2148coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1858{ 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 {
1859 int i; 2163 int i;
1860 HV *hv = (HV *)SvRV (coro_current);
1861 AV *av = newAV ();
1862 2164
1863 av_extend (av, items - 1); 2165 av_extend (av, items - 1);
2166
1864 for (i = 0; i < items; ++i) 2167 for (i = 0; i < items; ++i)
1865 av_push (av, SvREFCNT_inc_NN (arg [i])); 2168 av_push (av, SvREFCNT_inc_NN (arg [i]));
2169 }
2170}
1866 2171
1867 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2172static void
1868 2173slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2174{
1869 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 */
1870 api_ready (aTHX_ sv_manager); 2176 api_ready (aTHX_ sv_manager);
1871 2177
1872 frame->prepare = prepare_schedule; 2178 frame->prepare = prepare_schedule;
1873 frame->check = slf_check_repeat; 2179 frame->check = slf_check_repeat;
1874 2180
1875 /* as a minor optimisation, we could unwind all stacks here */ 2181 /* as a minor optimisation, we could unwind all stacks here */
1876 /* 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 */
1877 /*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;
1878} 2287}
1879 2288
1880/*****************************************************************************/ 2289/*****************************************************************************/
1881/* async pool handler */ 2290/* async pool handler */
1882 2291
… …
1913slf_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)
1914{ 2323{
1915 HV *hv = (HV *)SvRV (coro_current); 2324 HV *hv = (HV *)SvRV (coro_current);
1916 struct coro *coro = SvSTATE_hv ((SV *)hv); 2325 struct coro *coro = SvSTATE_hv ((SV *)hv);
1917 2326
1918 if (expect_true (coro->saved_deffh)) 2327 if (ecb_expect_true (coro->saved_deffh))
1919 { 2328 {
1920 /* subsequent iteration */ 2329 /* subsequent iteration */
1921 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2330 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1922 coro->saved_deffh = 0; 2331 coro->saved_deffh = 0;
1923 2332
1924 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2333 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1925 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2334 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1926 { 2335 {
1927 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2336 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1928 coro->invoke_av = newAV (); 2337 return;
1929
1930 frame->prepare = prepare_nop;
1931 } 2338 }
1932 else 2339 else
1933 { 2340 {
1934 av_clear (GvAV (PL_defgv)); 2341 av_clear (GvAV (PL_defgv));
1935 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);
… …
1960 2367
1961static void 2368static void
1962coro_rouse_callback (pTHX_ CV *cv) 2369coro_rouse_callback (pTHX_ CV *cv)
1963{ 2370{
1964 dXSARGS; 2371 dXSARGS;
1965 SV *data = (SV *)GENSUB_ARG; 2372 SV *data = (SV *)S_GENSUB_ARG;
1966 2373
1967 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2374 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1968 { 2375 {
1969 /* first call, set args */ 2376 /* first call, set args */
2377 SV *coro = SvRV (data);
1970 AV *av = newAV (); 2378 AV *av = newAV ();
1971 SV *coro = SvRV (data);
1972 2379
1973 SvRV_set (data, (SV *)av); 2380 SvRV_set (data, (SV *)av);
1974 api_ready (aTHX_ coro);
1975 SvREFCNT_dec (coro);
1976 2381
1977 /* better take a full copy of the arguments */ 2382 /* better take a full copy of the arguments */
1978 while (items--) 2383 while (items--)
1979 av_store (av, items, newSVsv (ST (items))); 2384 av_store (av, items, newSVsv (ST (items)));
2385
2386 api_ready (aTHX_ coro);
2387 SvREFCNT_dec (coro);
1980 } 2388 }
1981 2389
1982 XSRETURN_EMPTY; 2390 XSRETURN_EMPTY;
1983} 2391}
1984 2392
… …
2001 2409
2002 EXTEND (SP, AvFILLp (av) + 1); 2410 EXTEND (SP, AvFILLp (av) + 1);
2003 for (i = 0; i <= AvFILLp (av); ++i) 2411 for (i = 0; i <= AvFILLp (av); ++i)
2004 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2412 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2005 2413
2006 /* we have stolen the elements, so ste length to zero and free */ 2414 /* we have stolen the elements, so set length to zero and free */
2007 AvFILLp (av) = -1; 2415 AvFILLp (av) = -1;
2008 av_undef (av); 2416 av_undef (av);
2009 2417
2010 PUTBACK; 2418 PUTBACK;
2011 } 2419 }
… …
2035 || SvTYPE (SvRV (cb)) != SVt_PVCV 2443 || SvTYPE (SvRV (cb)) != SVt_PVCV
2036 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2444 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2037 croak ("Coro::rouse_wait called with illegal callback argument,"); 2445 croak ("Coro::rouse_wait called with illegal callback argument,");
2038 2446
2039 { 2447 {
2040 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2448 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2041 SV *data = (SV *)GENSUB_ARG; 2449 SV *data = (SV *)S_GENSUB_ARG;
2042 2450
2043 frame->data = (void *)data; 2451 frame->data = (void *)data;
2044 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2452 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2045 frame->check = slf_check_rouse_wait; 2453 frame->check = slf_check_rouse_wait;
2046 } 2454 }
… …
2050coro_new_rouse_cb (pTHX) 2458coro_new_rouse_cb (pTHX)
2051{ 2459{
2052 HV *hv = (HV *)SvRV (coro_current); 2460 HV *hv = (HV *)SvRV (coro_current);
2053 struct coro *coro = SvSTATE_hv (hv); 2461 struct coro *coro = SvSTATE_hv (hv);
2054 SV *data = newRV_inc ((SV *)hv); 2462 SV *data = newRV_inc ((SV *)hv);
2055 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2463 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2056 2464
2057 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);
2058 SvREFCNT_dec (data); /* magicext increases the refcount */ 2466 SvREFCNT_dec (data); /* magicext increases the refcount */
2059 2467
2060 SvREFCNT_dec (coro->rouse_cb); 2468 SvREFCNT_dec (coro->rouse_cb);
… …
2157static void 2565static void
2158slf_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)
2159{ 2567{
2160 frame->prepare = prepare_cede_notself; 2568 frame->prepare = prepare_cede_notself;
2161 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;
2162} 2587}
2163 2588
2164/* 2589/*
2165 * these not obviously related functions are all rolled into one 2590 * these not obviously related functions are all rolled into one
2166 * 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
… …
2173 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 */
2174 2599
2175 /* 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 */
2176 /* the latter happens when a new coro has been started */ 2601 /* the latter happens when a new coro has been started */
2177 /* or when a new cctx was attached to an existing coroutine */ 2602 /* or when a new cctx was attached to an existing coroutine */
2178 if (expect_true (!slf_frame.prepare)) 2603 if (ecb_expect_true (!slf_frame.prepare))
2179 { 2604 {
2180 /* first iteration */ 2605 /* first iteration */
2181 dSP; 2606 dSP;
2182 SV **arg = PL_stack_base + TOPMARK + 1; 2607 SV **arg = PL_stack_base + TOPMARK + 1;
2183 int items = SP - arg; /* args without function object */ 2608 int items = SP - arg; /* args without function object */
… …
2224 while (slf_frame.check (aTHX_ &slf_frame)); 2649 while (slf_frame.check (aTHX_ &slf_frame));
2225 2650
2226 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 */
2227 2652
2228 /* exception handling */ 2653 /* exception handling */
2229 if (expect_false (CORO_THROW)) 2654 if (ecb_expect_false (CORO_THROW))
2230 { 2655 {
2231 SV *exception = sv_2mortal (CORO_THROW); 2656 SV *exception = sv_2mortal (CORO_THROW);
2232 2657
2233 CORO_THROW = 0; 2658 CORO_THROW = 0;
2234 sv_setsv (ERRSV, exception); 2659 sv_setsv (ERRSV, exception);
2235 croak (0); 2660 croak (0);
2236 } 2661 }
2237 2662
2238 /* return value handling - mostly like entersub */ 2663 /* return value handling - mostly like entersub */
2239 /* make sure we put something on the stack in scalar context */ 2664 /* make sure we put something on the stack in scalar context */
2240 if (GIMME_V == G_SCALAR) 2665 if (GIMME_V == G_SCALAR
2666 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2241 { 2667 {
2242 dSP; 2668 dSP;
2243 SV **bot = PL_stack_base + checkmark; 2669 SV **bot = PL_stack_base + checkmark;
2244 2670
2245 if (sp == bot) /* too few, push undef */ 2671 if (sp == bot) /* too few, push undef */
2246 bot [1] = &PL_sv_undef; 2672 bot [1] = &PL_sv_undef;
2247 else if (sp != bot + 1) /* too many, take last one */ 2673 else /* too many, take last one */
2248 bot [1] = *sp; 2674 bot [1] = *sp;
2249 2675
2250 SP = bot + 1; 2676 SP = bot + 1;
2251 2677
2252 PUTBACK; 2678 PUTBACK;
… …
2285 if (PL_op->op_flags & OPf_STACKED) 2711 if (PL_op->op_flags & OPf_STACKED)
2286 { 2712 {
2287 if (items > slf_arga) 2713 if (items > slf_arga)
2288 { 2714 {
2289 slf_arga = items; 2715 slf_arga = items;
2290 free (slf_argv); 2716 Safefree (slf_argv);
2291 slf_argv = malloc (slf_arga * sizeof (SV *)); 2717 New (0, slf_argv, slf_arga, SV *);
2292 } 2718 }
2293 2719
2294 slf_argc = items; 2720 slf_argc = items;
2295 2721
2296 for (i = 0; i < items; ++i) 2722 for (i = 0; i < items; ++i)
… …
2301 2727
2302 PL_op->op_ppaddr = pp_slf; 2728 PL_op->op_ppaddr = pp_slf;
2303 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2729 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2304 2730
2305 PL_op = (OP *)&slf_restore; 2731 PL_op = (OP *)&slf_restore;
2732}
2733
2734/*****************************************************************************/
2735/* dynamic wind */
2736
2737static void
2738on_enterleave_call (pTHX_ SV *cb)
2739{
2740 dSP;
2741
2742 PUSHSTACK;
2743
2744 PUSHMARK (SP);
2745 PUTBACK;
2746 call_sv (cb, G_VOID | G_DISCARD);
2747 SPAGAIN;
2748
2749 POPSTACK;
2750}
2751
2752static SV *
2753coro_avp_pop_and_free (pTHX_ AV **avp)
2754{
2755 AV *av = *avp;
2756 SV *res = av_pop (av);
2757
2758 if (AvFILLp (av) < 0)
2759 {
2760 *avp = 0;
2761 SvREFCNT_dec (av);
2762 }
2763
2764 return res;
2765}
2766
2767static void
2768coro_pop_on_enter (pTHX_ void *coro)
2769{
2770 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2771 SvREFCNT_dec (cb);
2772}
2773
2774static void
2775coro_pop_on_leave (pTHX_ void *coro)
2776{
2777 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2778 on_enterleave_call (aTHX_ sv_2mortal (cb));
2306} 2779}
2307 2780
2308/*****************************************************************************/ 2781/*****************************************************************************/
2309/* PerlIO::cede */ 2782/* PerlIO::cede */
2310 2783
… …
2312{ 2785{
2313 PerlIOBuf base; 2786 PerlIOBuf base;
2314 NV next, every; 2787 NV next, every;
2315} PerlIOCede; 2788} PerlIOCede;
2316 2789
2317static IV 2790static IV ecb_cold
2318PerlIOCede_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)
2319{ 2792{
2320 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2793 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2321 2794
2322 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2795 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2323 self->next = nvtime () + self->every; 2796 self->next = nvtime () + self->every;
2324 2797
2325 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2798 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2326} 2799}
2327 2800
2328static SV * 2801static SV * ecb_cold
2329PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2802PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2330{ 2803{
2331 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2804 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2332 2805
2333 return newSVnv (self->every); 2806 return newSVnv (self->every);
… …
2384/* Coro::Semaphore & Coro::Signal */ 2857/* Coro::Semaphore & Coro::Signal */
2385 2858
2386static SV * 2859static SV *
2387coro_waitarray_new (pTHX_ int count) 2860coro_waitarray_new (pTHX_ int count)
2388{ 2861{
2389 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2862 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2390 AV *av = newAV (); 2863 AV *av = newAV ();
2391 SV **ary; 2864 SV **ary;
2392 2865
2393 /* unfortunately, building manually saves memory */ 2866 /* unfortunately, building manually saves memory */
2394 Newx (ary, 2, SV *); 2867 Newx (ary, 2, SV *);
… …
2445 SvREFCNT_dec (cb); 2918 SvREFCNT_dec (cb);
2446 } 2919 }
2447} 2920}
2448 2921
2449static void 2922static void
2450coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2923coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2451{ 2924{
2452 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2925 /* call $sem->adjust (0) to possibly wake up some other waiters */
2453 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2926 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2454} 2927}
2455 2928
2456static int 2929static int
2457slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2930slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2458{ 2931{
2459 AV *av = (AV *)frame->data; 2932 AV *av = (AV *)frame->data;
2460 SV *count_sv = AvARRAY (av)[0]; 2933 SV *count_sv = AvARRAY (av)[0];
2934 SV *coro_hv = SvRV (coro_current);
2461 2935
2462 /* 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 */
2463 if (CORO_THROW) 2937 if (CORO_THROW)
2464 return 0; 2938 return 0;
2465 else if (SvIVX (count_sv) > 0) 2939 else if (SvIVX (count_sv) > 0)
2466 { 2940 {
2467 SvSTATE_current->on_destroy = 0; 2941 frame->destroy = 0;
2468 2942
2469 if (acquire) 2943 if (acquire)
2470 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2944 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2471 else 2945 else
2472 coro_semaphore_adjust (aTHX_ av, 0); 2946 coro_semaphore_adjust (aTHX_ av, 0);
… …
2477 { 2951 {
2478 int i; 2952 int i;
2479 /* 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 */
2480 /* 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 */
2481 /* this avoids some degenerate memory usage cases */ 2955 /* this avoids some degenerate memory usage cases */
2482 2956 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2483 for (i = 1; i <= AvFILLp (av); ++i)
2484 if (AvARRAY (av)[i] == SvRV (coro_current)) 2957 if (AvARRAY (av)[i] == coro_hv)
2485 return 1; 2958 return 1;
2486 2959
2487 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2960 av_push (av, SvREFCNT_inc (coro_hv));
2488 return 1; 2961 return 1;
2489 } 2962 }
2490} 2963}
2491 2964
2492static int 2965static int
… …
2515 { 2988 {
2516 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2989 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2517 2990
2518 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2991 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2519 frame->prepare = prepare_schedule; 2992 frame->prepare = prepare_schedule;
2520
2521 /* to avoid race conditions when a woken-up coro gets terminated */ 2993 /* to avoid race conditions when a woken-up coro gets terminated */
2522 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2994 /* we arrange for a temporary on_destroy that calls adjust (0) */
2523 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2995 frame->destroy = coro_semaphore_destroy;
2524 } 2996 }
2525} 2997}
2526 2998
2527static void 2999static void
2528slf_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)
… …
2536{ 3008{
2537 if (items >= 2) 3009 if (items >= 2)
2538 { 3010 {
2539 /* callback form */ 3011 /* callback form */
2540 AV *av = (AV *)SvRV (arg [0]); 3012 AV *av = (AV *)SvRV (arg [0]);
2541 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3013 SV *cb_cv = s_get_cv_croak (arg [1]);
2542 3014
2543 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3015 av_push (av, SvREFCNT_inc_NN (cb_cv));
2544 3016
2545 if (SvIVX (AvARRAY (av)[0]) > 0) 3017 if (SvIVX (AvARRAY (av)[0]) > 0)
2546 coro_semaphore_adjust (aTHX_ av, 0); 3018 coro_semaphore_adjust (aTHX_ av, 0);
2547 3019
2548 frame->prepare = prepare_nop; 3020 frame->prepare = prepare_nop;
… …
2572 AvARRAY (av)[0] = AvARRAY (av)[1]; 3044 AvARRAY (av)[0] = AvARRAY (av)[1];
2573 AvARRAY (av)[1] = cb; 3045 AvARRAY (av)[1] = cb;
2574 3046
2575 cb = av_shift (av); 3047 cb = av_shift (av);
2576 3048
3049 if (SvTYPE (cb) == SVt_PVCV)
3050 {
3051 dSP;
3052 PUSHMARK (SP);
3053 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3054 PUTBACK;
3055 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3056 }
3057 else
3058 {
2577 api_ready (aTHX_ cb); 3059 api_ready (aTHX_ cb);
2578 sv_setiv (cb, 0); /* signal waiter */ 3060 sv_setiv (cb, 0); /* signal waiter */
3061 }
3062
2579 SvREFCNT_dec (cb); 3063 SvREFCNT_dec (cb);
2580 3064
2581 --count; 3065 --count;
2582 } 3066 }
2583} 3067}
… …
2592static void 3076static void
2593slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3077slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2594{ 3078{
2595 AV *av = (AV *)SvRV (arg [0]); 3079 AV *av = (AV *)SvRV (arg [0]);
2596 3080
3081 if (items >= 2)
3082 {
3083 SV *cb_cv = s_get_cv_croak (arg [1]);
3084 av_push (av, SvREFCNT_inc_NN (cb_cv));
3085
2597 if (SvIVX (AvARRAY (av)[0])) 3086 if (SvIVX (AvARRAY (av)[0]))
3087 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3088
3089 frame->prepare = prepare_nop;
3090 frame->check = slf_check_nop;
3091 }
3092 else if (SvIVX (AvARRAY (av)[0]))
2598 { 3093 {
2599 SvIVX (AvARRAY (av)[0]) = 0; 3094 SvIVX (AvARRAY (av)[0]) = 0;
2600 frame->prepare = prepare_nop; 3095 frame->prepare = prepare_nop;
2601 frame->check = slf_check_nop; 3096 frame->check = slf_check_nop;
2602 } 3097 }
2603 else 3098 else
2604 { 3099 {
2605 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3100 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2606 3101
2607 av_push (av, waiter); 3102 av_push (av, waiter);
2608 3103
2609 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3104 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2610 frame->prepare = prepare_schedule; 3105 frame->prepare = prepare_schedule;
… …
2628 3123
2629static void 3124static void
2630coro_aio_callback (pTHX_ CV *cv) 3125coro_aio_callback (pTHX_ CV *cv)
2631{ 3126{
2632 dXSARGS; 3127 dXSARGS;
2633 AV *state = (AV *)GENSUB_ARG; 3128 AV *state = (AV *)S_GENSUB_ARG;
2634 SV *coro = av_pop (state); 3129 SV *coro = av_pop (state);
2635 SV *data_sv = newSV (sizeof (struct io_state)); 3130 SV *data_sv = newSV (sizeof (struct io_state));
2636 3131
2637 av_extend (state, items - 1); 3132 av_extend (state, items - 1);
2638 3133
… …
2723 dSP; 3218 dSP;
2724 3219
2725 static SV *prio_cv; 3220 static SV *prio_cv;
2726 static SV *prio_sv; 3221 static SV *prio_sv;
2727 3222
2728 if (expect_false (!prio_cv)) 3223 if (ecb_expect_false (!prio_cv))
2729 { 3224 {
2730 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3225 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2731 prio_sv = newSViv (0); 3226 prio_sv = newSViv (0);
2732 } 3227 }
2733 3228
… …
2752 3247
2753 for (i = 0; i < items; ++i) 3248 for (i = 0; i < items; ++i)
2754 PUSHs (arg [i]); 3249 PUSHs (arg [i]);
2755 3250
2756 /* now push the callback closure */ 3251 /* now push the callback closure */
2757 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))));
2758 3253
2759 /* now call the AIO function - we assume our request is uncancelable */ 3254 /* now call the AIO function - we assume our request is uncancelable */
2760 PUTBACK; 3255 PUTBACK;
2761 call_sv ((SV *)req, G_VOID | G_DISCARD); 3256 call_sv ((SV *)req, G_VOID | G_DISCARD);
2762 } 3257 }
2763 3258
2764 /* 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 */
2765 frame->data = (void *)state; 3260 frame->data = (void *)state;
2766 frame->prepare = prepare_schedule; 3261 frame->prepare = prepare_schedule;
2767 frame->check = slf_check_aio_req; 3262 frame->check = slf_check_aio_req;
2768} 3263}
2769 3264
… …
2779 3274
2780/*****************************************************************************/ 3275/*****************************************************************************/
2781 3276
2782#if CORO_CLONE 3277#if CORO_CLONE
2783# 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
2784#endif 3398#endif
2785 3399
2786MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3400MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2787 3401
2788PROTOTYPES: DISABLE 3402PROTOTYPES: DISABLE
… …
2794 coro_thx = PERL_GET_CONTEXT; 3408 coro_thx = PERL_GET_CONTEXT;
2795# endif 3409# endif
2796#endif 3410#endif
2797 BOOT_PAGESIZE; 3411 BOOT_PAGESIZE;
2798 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
2799 cctx_current = cctx_new_empty (); 3420 cctx_current = cctx_new_empty ();
2800 3421
2801 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3422 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2802 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3423 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2803 3424
… …
2842 coroapi.prepare_nop = prepare_nop; 3463 coroapi.prepare_nop = prepare_nop;
2843 coroapi.prepare_schedule = prepare_schedule; 3464 coroapi.prepare_schedule = prepare_schedule;
2844 coroapi.prepare_cede = prepare_cede; 3465 coroapi.prepare_cede = prepare_cede;
2845 coroapi.prepare_cede_notself = prepare_cede_notself; 3466 coroapi.prepare_cede_notself = prepare_cede_notself;
2846 3467
2847 { 3468 time_init (aTHX);
2848 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2849 3469
2850 if (!svp) croak ("Time::HiRes is required");
2851 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2852
2853 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2854 }
2855
2856 assert (("PRIO_NORMAL must be 0", !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
2857} 3476}
2858 3477
2859SV * 3478SV *
2860new (char *klass, ...) 3479new (SV *klass, ...)
2861 ALIAS: 3480 ALIAS:
2862 Coro::new = 1 3481 Coro::new = 1
2863 CODE: 3482 CODE:
2864{ 3483 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2865 struct coro *coro; 3484 OUTPUT:
2866 MAGIC *mg;
2867 HV *hv;
2868 CV *cb;
2869 int i;
2870
2871 if (items > 1)
2872 {
2873 cb = coro_sv_2cv (aTHX_ ST (1));
2874
2875 if (!ix)
2876 {
2877 if (CvISXSUB (cb))
2878 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2879
2880 if (!CvROOT (cb))
2881 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2882 }
2883 }
2884
2885 Newz (0, coro, 1, struct coro);
2886 coro->args = newAV ();
2887 coro->flags = CF_NEW;
2888
2889 if (coro_first) coro_first->prev = coro;
2890 coro->next = coro_first;
2891 coro_first = coro;
2892
2893 coro->hv = hv = newHV ();
2894 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2895 mg->mg_flags |= MGf_DUP;
2896 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2897
2898 if (items > 1)
2899 {
2900 av_extend (coro->args, items - 1 + ix - 1);
2901
2902 if (ix)
2903 {
2904 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2905 cb = cv_coro_run;
2906 }
2907
2908 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2909
2910 for (i = 2; i < items; i++)
2911 av_push (coro->args, newSVsv (ST (i)));
2912 }
2913}
2914 OUTPUT:
2915 RETVAL 3485 RETVAL
2916 3486
2917void 3487void
2918transfer (...) 3488transfer (...)
2919 PROTOTYPE: $$ 3489 PROTOTYPE: $$
2920 CODE: 3490 CODE:
2921 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3491 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2922
2923bool
2924_destroy (SV *coro_sv)
2925 CODE:
2926 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2927 OUTPUT:
2928 RETVAL
2929 3492
2930void 3493void
2931_exit (int code) 3494_exit (int code)
2932 PROTOTYPE: $ 3495 PROTOTYPE: $
2933 CODE: 3496 CODE:
… …
3008 eval = 1 3571 eval = 1
3009 CODE: 3572 CODE:
3010{ 3573{
3011 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3574 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3012 { 3575 {
3013 struct coro temp; 3576 struct coro *current = SvSTATE_current;
3577 struct CoroSLF slf_save;
3014 3578
3015 if (!(coro->flags & CF_RUNNING)) 3579 if (current != coro)
3016 { 3580 {
3017 PUTBACK; 3581 PUTBACK;
3018 save_perl (aTHX_ &temp); 3582 save_perl (aTHX_ current);
3019 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;
3593 SPAGAIN;
3020 } 3594 }
3021 3595
3022 {
3023 dSP;
3024 ENTER;
3025 SAVETMPS;
3026 PUTBACK;
3027 PUSHSTACK; 3596 PUSHSTACK;
3597
3028 PUSHMARK (SP); 3598 PUSHMARK (SP);
3599 PUTBACK;
3029 3600
3030 if (ix) 3601 if (ix)
3031 eval_sv (coderef, 0); 3602 eval_sv (coderef, 0);
3032 else 3603 else
3033 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3604 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3034 3605
3035 POPSTACK; 3606 POPSTACK;
3036 SPAGAIN; 3607 SPAGAIN;
3037 FREETMPS;
3038 LEAVE;
3039 PUTBACK;
3040 }
3041 3608
3042 if (!(coro->flags & CF_RUNNING)) 3609 if (current != coro)
3043 { 3610 {
3611 PUTBACK;
3612 slf_frame = slf_save;
3044 save_perl (aTHX_ coro); 3613 save_perl (aTHX_ coro);
3045 load_perl (aTHX_ &temp); 3614 load_perl (aTHX_ current);
3046 SPAGAIN; 3615 SPAGAIN;
3047 } 3616 }
3048 } 3617 }
3049} 3618}
3050 3619
… …
3053 PROTOTYPE: $ 3622 PROTOTYPE: $
3054 ALIAS: 3623 ALIAS:
3055 is_ready = CF_READY 3624 is_ready = CF_READY
3056 is_running = CF_RUNNING 3625 is_running = CF_RUNNING
3057 is_new = CF_NEW 3626 is_new = CF_NEW
3058 is_destroyed = CF_DESTROYED 3627 is_destroyed = CF_ZOMBIE
3628 is_zombie = CF_ZOMBIE
3629 is_suspended = CF_SUSPENDED
3059 CODE: 3630 CODE:
3060 RETVAL = boolSV (coro->flags & ix); 3631 RETVAL = boolSV (coro->flags & ix);
3061 OUTPUT: 3632 OUTPUT:
3062 RETVAL 3633 RETVAL
3063 3634
3064void 3635void
3065throw (Coro::State self, SV *throw = &PL_sv_undef) 3636throw (Coro::State self, SV *exception = &PL_sv_undef)
3066 PROTOTYPE: $;$ 3637 PROTOTYPE: $;$
3067 CODE: 3638 CODE:
3068{ 3639{
3069 struct coro *current = SvSTATE_current; 3640 struct coro *current = SvSTATE_current;
3070 SV **throwp = self == current ? &CORO_THROW : &self->except; 3641 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3071 SvREFCNT_dec (*throwp); 3642 SvREFCNT_dec (*exceptionp);
3072 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3643 SvGETMAGIC (exception);
3644 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3073} 3645}
3074 3646
3075void 3647void
3076api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3648api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3077 PROTOTYPE: $;$ 3649 PROTOTYPE: $;$
… …
3128 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3700 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3129 3701
3130 SV *tmp = *src; *src = *dst; *dst = tmp; 3702 SV *tmp = *src; *src = *dst; *dst = tmp;
3131 } 3703 }
3132 3704
3705void
3706cancel (Coro::State self)
3707 CODE:
3708 coro_state_destroy (aTHX_ self);
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}
3765
3133 3766
3134MODULE = Coro::State PACKAGE = Coro 3767MODULE = Coro::State PACKAGE = Coro
3135 3768
3136BOOT: 3769BOOT:
3137{ 3770{
3138 int i;
3139
3140 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3771 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3141 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3772 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3142 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3773 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3143 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3144 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);
3145 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3775 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3146 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3776 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3147 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3777 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3148 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3778 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3149 3779
3150 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);
3151 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3781 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3152 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);
3153 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 */
3154 3784
3155 coro_stash = gv_stashpv ("Coro", TRUE); 3785 coro_stash = gv_stashpv ("Coro", TRUE);
3156 3786
3157 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3787 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3158 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3788 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3159 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3789 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3160 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3790 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3161 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3791 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3162 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3792 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3163
3164 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3165 coro_ready[i] = newAV ();
3166 3793
3167 { 3794 {
3168 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3795 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3169 3796
3170 coroapi.schedule = api_schedule; 3797 coroapi.schedule = api_schedule;
… …
3180 sv_setiv (sv, (IV)&coroapi); 3807 sv_setiv (sv, (IV)&coroapi);
3181 SvREADONLY_on (sv); 3808 SvREADONLY_on (sv);
3182 } 3809 }
3183} 3810}
3184 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
3185void 3837void
3186terminate (...) 3838terminate (...)
3187 CODE: 3839 CODE:
3188 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3840 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3189 3841
3190void 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
3850
3851void
3191schedule (...) 3852schedule (...)
3192 CODE: 3853 CODE:
3193 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3854 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3194 3855
3195void 3856void
… …
3209 3870
3210void 3871void
3211cede_notself (...) 3872cede_notself (...)
3212 CODE: 3873 CODE:
3213 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3874 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3214
3215void
3216_cancel (Coro::State self)
3217 CODE:
3218 coro_state_destroy (aTHX_ self);
3219 coro_call_on_destroy (aTHX_ self);
3220 3875
3221void 3876void
3222_set_current (SV *current) 3877_set_current (SV *current)
3223 PROTOTYPE: $ 3878 PROTOTYPE: $
3224 CODE: 3879 CODE:
… …
3228void 3883void
3229_set_readyhook (SV *hook) 3884_set_readyhook (SV *hook)
3230 PROTOTYPE: $ 3885 PROTOTYPE: $
3231 CODE: 3886 CODE:
3232 SvREFCNT_dec (coro_readyhook); 3887 SvREFCNT_dec (coro_readyhook);
3888 SvGETMAGIC (hook);
3889 if (SvOK (hook))
3890 {
3233 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 }
3234 3899
3235int 3900int
3236prio (Coro::State coro, int newprio = 0) 3901prio (Coro::State coro, int newprio = 0)
3237 PROTOTYPE: $;$ 3902 PROTOTYPE: $;$
3238 ALIAS: 3903 ALIAS:
… …
3244 if (items > 1) 3909 if (items > 1)
3245 { 3910 {
3246 if (ix) 3911 if (ix)
3247 newprio = coro->prio - newprio; 3912 newprio = coro->prio - newprio;
3248 3913
3249 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3914 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3250 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3915 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3251 3916
3252 coro->prio = newprio; 3917 coro->prio = newprio;
3253 } 3918 }
3254} 3919}
3255 OUTPUT: 3920 OUTPUT:
… …
3270 RETVAL = coro_nready; 3935 RETVAL = coro_nready;
3271 OUTPUT: 3936 OUTPUT:
3272 RETVAL 3937 RETVAL
3273 3938
3274void 3939void
3940suspend (Coro::State self)
3941 PROTOTYPE: $
3942 CODE:
3943 self->flags |= CF_SUSPENDED;
3944
3945void
3946resume (Coro::State self)
3947 PROTOTYPE: $
3948 CODE:
3949 self->flags &= ~CF_SUSPENDED;
3950
3951void
3275_pool_handler (...) 3952_pool_handler (...)
3276 CODE: 3953 CODE:
3277 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3954 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3278 3955
3279void 3956void
… …
3290 for (i = 1; i < items; ++i) 3967 for (i = 1; i < items; ++i)
3291 av_push (av, SvREFCNT_inc_NN (ST (i))); 3968 av_push (av, SvREFCNT_inc_NN (ST (i)));
3292 3969
3293 if ((SV *)hv == &PL_sv_undef) 3970 if ((SV *)hv == &PL_sv_undef)
3294 { 3971 {
3295 PUSHMARK (SP); 3972 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3296 EXTEND (SP, 2);
3297 PUSHs (sv_Coro);
3298 PUSHs ((SV *)cv_pool_handler);
3299 PUTBACK;
3300 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3301 SPAGAIN;
3302
3303 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3973 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3974 SvREFCNT_dec (sv);
3304 } 3975 }
3305 3976
3306 { 3977 {
3307 struct coro *coro = SvSTATE_hv (hv); 3978 struct coro *coro = SvSTATE_hv (hv);
3308 3979
… …
3332rouse_wait (...) 4003rouse_wait (...)
3333 PROTOTYPE: ;$ 4004 PROTOTYPE: ;$
3334 PPCODE: 4005 PPCODE:
3335 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4006 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3336 4007
4008void
4009on_enter (SV *block)
4010 ALIAS:
4011 on_leave = 1
4012 PROTOTYPE: &
4013 CODE:
4014{
4015 struct coro *coro = SvSTATE_current;
4016 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4017
4018 block = s_get_cv_croak (block);
4019
4020 if (!*avp)
4021 *avp = newAV ();
4022
4023 av_push (*avp, SvREFCNT_inc (block));
4024
4025 if (!ix)
4026 on_enterleave_call (aTHX_ block);
4027
4028 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4029 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4030 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4031}
4032
3337 4033
3338MODULE = Coro::State PACKAGE = PerlIO::cede 4034MODULE = Coro::State PACKAGE = PerlIO::cede
3339 4035
3340BOOT: 4036BOOT:
3341 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4037 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3344MODULE = Coro::State PACKAGE = Coro::Semaphore 4040MODULE = Coro::State PACKAGE = Coro::Semaphore
3345 4041
3346SV * 4042SV *
3347new (SV *klass, SV *count = 0) 4043new (SV *klass, SV *count = 0)
3348 CODE: 4044 CODE:
4045{
4046 int semcnt = 1;
4047
4048 if (count)
4049 {
4050 SvGETMAGIC (count);
4051
4052 if (SvOK (count))
4053 semcnt = SvIV (count);
4054 }
4055
3349 RETVAL = sv_bless ( 4056 RETVAL = sv_bless (
3350 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4057 coro_waitarray_new (aTHX_ semcnt),
3351 GvSTASH (CvGV (cv)) 4058 GvSTASH (CvGV (cv))
3352 ); 4059 );
4060}
3353 OUTPUT: 4061 OUTPUT:
3354 RETVAL 4062 RETVAL
3355 4063
3356# helper for Coro::Channel 4064# helper for Coro::Channel and others
3357SV * 4065SV *
3358_alloc (int count) 4066_alloc (int count)
3359 CODE: 4067 CODE:
3360 RETVAL = coro_waitarray_new (aTHX_ count); 4068 RETVAL = coro_waitarray_new (aTHX_ count);
3361 OUTPUT: 4069 OUTPUT:
… …
3419 for (i = 1; i <= wcount; ++i) 4127 for (i = 1; i <= wcount; ++i)
3420 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4128 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3421 } 4129 }
3422} 4130}
3423 4131
4132MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4133
4134void
4135_may_delete (SV *sem, int count, int extra_refs)
4136 PPCODE:
4137{
4138 AV *av = (AV *)SvRV (sem);
4139
4140 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4141 && AvFILLp (av) == 0 /* no waiters, just count */
4142 && SvIV (AvARRAY (av)[0]) == count)
4143 XSRETURN_YES;
4144
4145 XSRETURN_NO;
4146}
4147
3424MODULE = Coro::State PACKAGE = Coro::Signal 4148MODULE = Coro::State PACKAGE = Coro::Signal
3425 4149
3426SV * 4150SV *
3427new (SV *klass) 4151new (SV *klass)
3428 CODE: 4152 CODE:
… …
3499 4223
3500void 4224void
3501_register (char *target, char *proto, SV *req) 4225_register (char *target, char *proto, SV *req)
3502 CODE: 4226 CODE:
3503{ 4227{
3504 CV *req_cv = coro_sv_2cv (aTHX_ req); 4228 SV *req_cv = s_get_cv_croak (req);
3505 /* newXSproto doesn't return the CV on 5.8 */ 4229 /* newXSproto doesn't return the CV on 5.8 */
3506 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4230 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3507 sv_setpv ((SV *)slf_cv, proto); 4231 sv_setpv ((SV *)slf_cv, proto);
3508 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);
3509} 4233}
3510 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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