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Comparing Coro/Coro/State.xs (file contents):
Revision 1.332 by root, Thu Nov 27 12:20:31 2008 UTC vs.
Revision 1.405 by root, Sat Jun 11 13:01:26 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 __linux && __amd64
298 #define CORO_JIT_TYPE "amd64-unix"
299 typedef void (*load_save_perl_slots_type)(perl_slots *);
300 #else
301 #undef CORO_JIT
302 #endif
303 #endif
304#endif
305
306#if CORO_JIT
307
308static load_save_perl_slots_type load_perl_slots, save_perl_slots;
309
310#endif
311
312/** Coro::Select ************************************************************/
313
314static OP *(*coro_old_pp_sselect) (pTHX);
315static SV *coro_select_select;
316
317/* horrible hack, but if it works... */
318static OP *
319coro_pp_sselect (pTHX)
320{
321 dSP;
322 PUSHMARK (SP - 4); /* fake argument list */
323 XPUSHs (coro_select_select);
324 PUTBACK;
325
326 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
327 PL_op->op_flags |= OPf_STACKED;
328 PL_op->op_private = 0;
329 return PL_ppaddr [OP_ENTERSUB](aTHX);
330}
331
332/** time stuff **************************************************************/
333
334#ifdef HAS_GETTIMEOFDAY
335
336ECB_INLINE void
337coro_u2time (pTHX_ UV ret[2])
338{
339 struct timeval tv;
340 gettimeofday (&tv, 0);
341
342 ret [0] = tv.tv_sec;
343 ret [1] = tv.tv_usec;
344}
345
346ECB_INLINE double
347coro_nvtime ()
348{
349 struct timeval tv;
350 gettimeofday (&tv, 0);
351
352 return tv.tv_sec + tv.tv_usec * 1e-6;
353}
354
355ECB_INLINE void
356time_init (pTHX)
357{
358 nvtime = coro_nvtime;
359 u2time = coro_u2time;
360}
361
362#else
363
364ECB_INLINE void
365time_init (pTHX)
366{
367 SV **svp;
368
369 require_pv ("Time/HiRes.pm");
370
371 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
372
373 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
374 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
375
376 nvtime = INT2PTR (double (*)(), SvIV (*svp));
377
378 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
379 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
380}
381
382#endif
383
319/** lowlevel stuff **********************************************************/ 384/** lowlevel stuff **********************************************************/
320 385
321static SV * 386static SV * ecb_noinline
322coro_get_sv (pTHX_ const char *name, int create) 387coro_get_sv (pTHX_ const char *name, int create)
323{ 388{
324#if PERL_VERSION_ATLEAST (5,10,0) 389#if PERL_VERSION_ATLEAST (5,10,0)
325 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 390 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
326 get_sv (name, create); 391 get_sv (name, create);
327#endif 392#endif
328 return get_sv (name, create); 393 return get_sv (name, create);
329} 394}
330 395
331static AV * 396static AV * ecb_noinline
332coro_get_av (pTHX_ const char *name, int create) 397coro_get_av (pTHX_ const char *name, int create)
333{ 398{
334#if PERL_VERSION_ATLEAST (5,10,0) 399#if PERL_VERSION_ATLEAST (5,10,0)
335 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 400 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
336 get_av (name, create); 401 get_av (name, create);
337#endif 402#endif
338 return get_av (name, create); 403 return get_av (name, create);
339} 404}
340 405
341static HV * 406static HV * ecb_noinline
342coro_get_hv (pTHX_ const char *name, int create) 407coro_get_hv (pTHX_ const char *name, int create)
343{ 408{
344#if PERL_VERSION_ATLEAST (5,10,0) 409#if PERL_VERSION_ATLEAST (5,10,0)
345 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 410 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
346 get_hv (name, create); 411 get_hv (name, create);
347#endif 412#endif
348 return get_hv (name, create); 413 return get_hv (name, create);
349} 414}
350 415
351/* may croak */ 416ECB_INLINE void
352INLINE CV * 417coro_times_update ()
353coro_sv_2cv (pTHX_ SV *sv)
354{ 418{
355 HV *st; 419#ifdef coro_clock_gettime
356 GV *gvp; 420 struct timespec ts;
357 return sv_2cv (sv, &st, &gvp, 0); 421
422 ts.tv_sec = ts.tv_nsec = 0;
423 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
424 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
425
426 ts.tv_sec = ts.tv_nsec = 0;
427 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
428 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
429#else
430 dTHX;
431 UV tv[2];
432
433 u2time (aTHX_ tv);
434 time_real [0] = tv [0];
435 time_real [1] = tv [1] * 1000;
436#endif
437}
438
439ECB_INLINE void
440coro_times_add (struct coro *c)
441{
442 c->t_real [1] += time_real [1];
443 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
444 c->t_real [0] += time_real [0];
445
446 c->t_cpu [1] += time_cpu [1];
447 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
448 c->t_cpu [0] += time_cpu [0];
449}
450
451ECB_INLINE void
452coro_times_sub (struct coro *c)
453{
454 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
455 c->t_real [1] -= time_real [1];
456 c->t_real [0] -= time_real [0];
457
458 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
459 c->t_cpu [1] -= time_cpu [1];
460 c->t_cpu [0] -= time_cpu [0];
358} 461}
359 462
360/*****************************************************************************/ 463/*****************************************************************************/
361/* magic glue */ 464/* magic glue */
362 465
363#define CORO_MAGIC_type_cv 26 466#define CORO_MAGIC_type_cv 26
364#define CORO_MAGIC_type_state PERL_MAGIC_ext 467#define CORO_MAGIC_type_state PERL_MAGIC_ext
365 468
366#define CORO_MAGIC_NN(sv, type) \ 469#define CORO_MAGIC_NN(sv, type) \
367 (expect_true (SvMAGIC (sv)->mg_type == type) \ 470 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
368 ? SvMAGIC (sv) \ 471 ? SvMAGIC (sv) \
369 : mg_find (sv, type)) 472 : mg_find (sv, type))
370 473
371#define CORO_MAGIC(sv, type) \ 474#define CORO_MAGIC(sv, type) \
372 (expect_true (SvMAGIC (sv)) \ 475 (ecb_expect_true (SvMAGIC (sv)) \
373 ? CORO_MAGIC_NN (sv, type) \ 476 ? CORO_MAGIC_NN (sv, type) \
374 : 0) 477 : 0)
375 478
376#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 479#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) 480#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
378 481
482ECB_INLINE MAGIC *
483SvSTATEhv_p (pTHX_ SV *coro)
484{
485 MAGIC *mg;
486
487 if (ecb_expect_true (
488 SvTYPE (coro) == SVt_PVHV
489 && (mg = CORO_MAGIC_state (coro))
490 && mg->mg_virtual == &coro_state_vtbl
491 ))
492 return mg;
493
494 return 0;
495}
496
379INLINE struct coro * 497ECB_INLINE struct coro *
380SvSTATE_ (pTHX_ SV *coro) 498SvSTATE_ (pTHX_ SV *coro)
381{ 499{
382 HV *stash;
383 MAGIC *mg; 500 MAGIC *mg;
384 501
385 if (SvROK (coro)) 502 if (SvROK (coro))
386 coro = SvRV (coro); 503 coro = SvRV (coro);
387 504
388 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 505 mg = SvSTATEhv_p (aTHX_ coro);
506 if (!mg)
389 croak ("Coro::State object required"); 507 croak ("Coro::State object required");
390 508
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; 509 return (struct coro *)mg->mg_ptr;
401} 510}
402 511
403#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 512#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
404 513
… …
407#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 516#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
408 517
409/*****************************************************************************/ 518/*****************************************************************************/
410/* padlist management and caching */ 519/* padlist management and caching */
411 520
412static AV * 521ECB_INLINE AV *
413coro_derive_padlist (pTHX_ CV *cv) 522coro_derive_padlist (pTHX_ CV *cv)
414{ 523{
415 AV *padlist = CvPADLIST (cv); 524 AV *padlist = CvPADLIST (cv);
416 AV *newpadlist, *newpad; 525 AV *newpadlist, *newpad;
417 526
… …
429 av_store (newpadlist, 1, (SV *)newpad); 538 av_store (newpadlist, 1, (SV *)newpad);
430 539
431 return newpadlist; 540 return newpadlist;
432} 541}
433 542
434static void 543ECB_INLINE void
435free_padlist (pTHX_ AV *padlist) 544free_padlist (pTHX_ AV *padlist)
436{ 545{
437 /* may be during global destruction */ 546 /* may be during global destruction */
438 if (!IN_DESTRUCT) 547 if (!IN_DESTRUCT)
439 { 548 {
… …
463coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 572coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464{ 573{
465 AV *padlist; 574 AV *padlist;
466 AV *av = (AV *)mg->mg_obj; 575 AV *av = (AV *)mg->mg_obj;
467 576
577 /* perl manages to free our internal AV and _then_ call us */
578 if (IN_DESTRUCT)
579 return 0;
580
468 /* casting is fun. */ 581 /* casting is fun. */
469 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 582 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
470 free_padlist (aTHX_ padlist); 583 free_padlist (aTHX_ padlist);
471 584
472 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 585 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
… …
478 0, 0, 0, 0, 591 0, 0, 0, 0,
479 coro_cv_free 592 coro_cv_free
480}; 593};
481 594
482/* the next two functions merely cache the padlists */ 595/* the next two functions merely cache the padlists */
483static void 596ECB_INLINE void
484get_padlist (pTHX_ CV *cv) 597get_padlist (pTHX_ CV *cv)
485{ 598{
486 MAGIC *mg = CORO_MAGIC_cv (cv); 599 MAGIC *mg = CORO_MAGIC_cv (cv);
487 AV *av; 600 AV *av;
488 601
489 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 602 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
490 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 603 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
491 else 604 else
492 { 605 {
493#if CORO_PREFER_PERL_FUNCTIONS 606#if CORO_PREFER_PERL_FUNCTIONS
494 /* this is probably cleaner? but also slower! */ 607 /* this is probably cleaner? but also slower! */
… …
501 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 614 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
502#endif 615#endif
503 } 616 }
504} 617}
505 618
506static void 619ECB_INLINE void
507put_padlist (pTHX_ CV *cv) 620put_padlist (pTHX_ CV *cv)
508{ 621{
509 MAGIC *mg = CORO_MAGIC_cv (cv); 622 MAGIC *mg = CORO_MAGIC_cv (cv);
510 AV *av; 623 AV *av;
511 624
512 if (expect_false (!mg)) 625 if (ecb_expect_false (!mg))
513 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 626 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
514 627
515 av = (AV *)mg->mg_obj; 628 av = (AV *)mg->mg_obj;
516 629
517 if (expect_false (AvFILLp (av) >= AvMAX (av))) 630 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
518 av_extend (av, AvFILLp (av) + 1); 631 av_extend (av, AvFILLp (av) + 1);
519 632
520 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 633 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
521} 634}
522 635
523/** load & save, init *******************************************************/ 636/** load & save, init *******************************************************/
637
638/* swap sv heads, at least logically */
639static void
640swap_svs (pTHX_ Coro__State c)
641{
642 int i;
643
644 for (i = 0; i <= AvFILLp (c->swap_sv); )
645 {
646 SV *a = AvARRAY (c->swap_sv)[i++];
647 SV *b = AvARRAY (c->swap_sv)[i++];
648
649 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
650 SV tmp;
651
652 /* swap sv_any */
653 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
654
655 /* swap sv_flags */
656 SvFLAGS (&tmp) = SvFLAGS (a);
657 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
658 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
659
660#if PERL_VERSION_ATLEAST (5,10,0)
661 /* perl 5.10 complicates this _quite_ a bit, but it also is
662 * much faster, so no quarrels here. alternatively, we could
663 * sv_upgrade to avoid this.
664 */
665 {
666 /* swap sv_u */
667 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
668
669 /* if SvANY points to the head, we need to adjust the pointers,
670 * as the pointer for a still points to b, and maybe vice versa.
671 */
672 #define svany_in_head(type) \
673 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
674
675 if (svany_in_head (SvTYPE (a)))
676 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
677
678 if (svany_in_head (SvTYPE (b)))
679 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
680 }
681#endif
682 }
683}
684
685#define SWAP_SVS(coro) \
686 if (ecb_expect_false ((coro)->swap_sv)) \
687 swap_svs (aTHX_ (coro))
688
689static void
690on_enterleave_call (pTHX_ SV *cb);
524 691
525static void 692static void
526load_perl (pTHX_ Coro__State c) 693load_perl (pTHX_ Coro__State c)
527{ 694{
528 perl_slots *slot = c->slot; 695 perl_slots *slot = c->slot;
529 c->slot = 0; 696 c->slot = 0;
530 697
531 PL_mainstack = c->mainstack; 698 PL_mainstack = c->mainstack;
532 699
533 GvSV (PL_defgv) = slot->defsv; 700#if CORO_JIT
534 GvAV (PL_defgv) = slot->defav; 701 load_perl_slots (slot);
535 GvSV (PL_errgv) = slot->errsv; 702#else
536 GvSV (irsgv) = slot->irsgv;
537 GvHV (PL_hintgv) = slot->hinthv;
538
539 #define VAR(name,type) PL_ ## name = slot->name; 703 #define VARx(name,expr,type) expr = slot->name;
540 # include "state.h" 704 # include "state.h"
541 #undef VAR 705 #undef VARx
706#endif
542 707
543 { 708 {
544 dSP; 709 dSP;
545 710
546 CV *cv; 711 CV *cv;
547 712
548 /* now do the ugly restore mess */ 713 /* now do the ugly restore mess */
549 while (expect_true (cv = (CV *)POPs)) 714 while (ecb_expect_true (cv = (CV *)POPs))
550 { 715 {
551 put_padlist (aTHX_ cv); /* mark this padlist as available */ 716 put_padlist (aTHX_ cv); /* mark this padlist as available */
552 CvDEPTH (cv) = PTR2IV (POPs); 717 CvDEPTH (cv) = PTR2IV (POPs);
553 CvPADLIST (cv) = (AV *)POPs; 718 CvPADLIST (cv) = (AV *)POPs;
554 } 719 }
… …
556 PUTBACK; 721 PUTBACK;
557 } 722 }
558 723
559 slf_frame = c->slf_frame; 724 slf_frame = c->slf_frame;
560 CORO_THROW = c->except; 725 CORO_THROW = c->except;
726
727 if (ecb_expect_false (enable_times))
728 {
729 if (ecb_expect_false (!times_valid))
730 coro_times_update ();
731
732 coro_times_sub (c);
733 }
734
735 if (ecb_expect_false (c->on_enter))
736 {
737 int i;
738
739 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
740 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
741 }
742
743 SWAP_SVS (c);
561} 744}
562 745
563static void 746static void
564save_perl (pTHX_ Coro__State c) 747save_perl (pTHX_ Coro__State c)
565{ 748{
749 SWAP_SVS (c);
750
751 if (ecb_expect_false (c->on_leave))
752 {
753 int i;
754
755 for (i = AvFILLp (c->on_leave); i >= 0; --i)
756 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
757 }
758
759 times_valid = 0;
760
761 if (ecb_expect_false (enable_times))
762 {
763 coro_times_update (); times_valid = 1;
764 coro_times_add (c);
765 }
766
566 c->except = CORO_THROW; 767 c->except = CORO_THROW;
567 c->slf_frame = slf_frame; 768 c->slf_frame = slf_frame;
568 769
569 { 770 {
570 dSP; 771 dSP;
… …
579 780
580 XPUSHs (Nullsv); 781 XPUSHs (Nullsv);
581 /* this loop was inspired by pp_caller */ 782 /* this loop was inspired by pp_caller */
582 for (;;) 783 for (;;)
583 { 784 {
584 while (expect_true (cxix >= 0)) 785 while (ecb_expect_true (cxix >= 0))
585 { 786 {
586 PERL_CONTEXT *cx = &ccstk[cxix--]; 787 PERL_CONTEXT *cx = &ccstk[cxix--];
587 788
588 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 789 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
589 { 790 {
590 CV *cv = cx->blk_sub.cv; 791 CV *cv = cx->blk_sub.cv;
591 792
592 if (expect_true (CvDEPTH (cv))) 793 if (ecb_expect_true (CvDEPTH (cv)))
593 { 794 {
594 EXTEND (SP, 3); 795 EXTEND (SP, 3);
595 PUSHs ((SV *)CvPADLIST (cv)); 796 PUSHs ((SV *)CvPADLIST (cv));
596 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 797 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
597 PUSHs ((SV *)cv); 798 PUSHs ((SV *)cv);
… …
600 get_padlist (aTHX_ cv); 801 get_padlist (aTHX_ cv);
601 } 802 }
602 } 803 }
603 } 804 }
604 805
605 if (expect_true (top_si->si_type == PERLSI_MAIN)) 806 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
606 break; 807 break;
607 808
608 top_si = top_si->si_prev; 809 top_si = top_si->si_prev;
609 ccstk = top_si->si_cxstack; 810 ccstk = top_si->si_cxstack;
610 cxix = top_si->si_cxix; 811 cxix = top_si->si_cxix;
… …
612 813
613 PUTBACK; 814 PUTBACK;
614 } 815 }
615 816
616 /* allocate some space on the context stack for our purposes */ 817 /* allocate some space on the context stack for our purposes */
617 /* we manually unroll here, as usually 2 slots is enough */ 818 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 { 819 {
622 int i; 820 unsigned int i;
821
623 for (i = 3; i < SLOT_COUNT; ++i) 822 for (i = 0; i < SLOT_COUNT; ++i)
624 CXINC; 823 CXINC;
625 } 824
626 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 825 cxstack_ix -= SLOT_COUNT; /* undo allocation */
826 }
627 827
628 c->mainstack = PL_mainstack; 828 c->mainstack = PL_mainstack;
629 829
630 { 830 {
631 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 831 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
632 832
633 slot->defav = GvAV (PL_defgv); 833#if CORO_JIT
634 slot->defsv = DEFSV; 834 save_perl_slots (slot);
635 slot->errsv = ERRSV; 835#else
636 slot->irsgv = GvSV (irsgv);
637 slot->hinthv = GvHV (PL_hintgv);
638
639 #define VAR(name,type) slot->name = PL_ ## name; 836 #define VARx(name,expr,type) slot->name = expr;
640 # include "state.h" 837 # include "state.h"
641 #undef VAR 838 #undef VARx
839#endif
642 } 840 }
643} 841}
644 842
645/* 843/*
646 * allocate various perl stacks. This is almost an exact copy 844 * allocate various perl stacks. This is almost an exact copy
… …
652# define coro_init_stacks(thx) init_stacks () 850# define coro_init_stacks(thx) init_stacks ()
653#else 851#else
654static void 852static void
655coro_init_stacks (pTHX) 853coro_init_stacks (pTHX)
656{ 854{
657 PL_curstackinfo = new_stackinfo(32, 8); 855 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; 856 PL_curstackinfo->si_type = PERLSI_MAIN;
659 PL_curstack = PL_curstackinfo->si_stack; 857 PL_curstack = PL_curstackinfo->si_stack;
660 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 858 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
661 859
662 PL_stack_base = AvARRAY(PL_curstack); 860 PL_stack_base = AvARRAY(PL_curstack);
… …
769#endif 967#endif
770 968
771/* 969/*
772 * This overrides the default magic get method of %SIG elements. 970 * 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 971 * 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 972 * and instead of trying to save and restore the hash elements (extremely slow),
775 * readback here. 973 * 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 */ 974 */
780static int 975static int ecb_cold
781coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 976coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782{ 977{
783 const char *s = MgPV_nolen_const (mg); 978 const char *s = MgPV_nolen_const (mg);
784 979
785 if (*s == '_') 980 if (*s == '_')
… …
797 } 992 }
798 993
799 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 994 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
800} 995}
801 996
802static int 997static int ecb_cold
803coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 998coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
804{ 999{
805 const char *s = MgPV_nolen_const (mg); 1000 const char *s = MgPV_nolen_const (mg);
806 1001
807 if (*s == '_') 1002 if (*s == '_')
… …
821 } 1016 }
822 1017
823 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1018 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
824} 1019}
825 1020
826static int 1021static int ecb_cold
827coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1022coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
828{ 1023{
829 const char *s = MgPV_nolen_const (mg); 1024 const char *s = MgPV_nolen_const (mg);
830 1025
831 if (*s == '_') 1026 if (*s == '_')
… …
836 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1031 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837 1032
838 if (svp) 1033 if (svp)
839 { 1034 {
840 SV *old = *svp; 1035 SV *old = *svp;
841 *svp = newSVsv (sv); 1036 *svp = SvOK (sv) ? newSVsv (sv) : 0;
842 SvREFCNT_dec (old); 1037 SvREFCNT_dec (old);
843 return 0; 1038 return 0;
844 } 1039 }
845 } 1040 }
846 1041
… …
864slf_check_repeat (pTHX_ struct CoroSLF *frame) 1059slf_check_repeat (pTHX_ struct CoroSLF *frame)
865{ 1060{
866 return 1; 1061 return 1;
867} 1062}
868 1063
869static UNOP coro_setup_op; 1064static UNOP init_perl_op;
870 1065
871static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1066ecb_noinline static void /* noinline to keep it out of the transfer fast path */
872coro_setup (pTHX_ struct coro *coro) 1067init_perl (pTHX_ struct coro *coro)
873{ 1068{
874 /* 1069 /*
875 * emulate part of the perl startup here. 1070 * emulate part of the perl startup here.
876 */ 1071 */
877 coro_init_stacks (aTHX); 1072 coro_init_stacks (aTHX);
… …
884 PL_comppad_name_fill = 0; 1079 PL_comppad_name_fill = 0;
885 PL_comppad_name_floor = 0; 1080 PL_comppad_name_floor = 0;
886 PL_curpm = 0; 1081 PL_curpm = 0;
887 PL_curpad = 0; 1082 PL_curpad = 0;
888 PL_localizing = 0; 1083 PL_localizing = 0;
889 PL_dirty = 0;
890 PL_restartop = 0; 1084 PL_restartop = 0;
891#if PERL_VERSION_ATLEAST (5,10,0) 1085#if PERL_VERSION_ATLEAST (5,10,0)
892 PL_parser = 0; 1086 PL_parser = 0;
893#endif 1087#endif
894 PL_hints = 0; 1088 PL_hints = 0;
895 1089
896 /* recreate the die/warn hooks */ 1090 /* recreate the die/warn hooks */
897 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1091 PL_diehook = SvREFCNT_inc (rv_diehook);
898 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1092 PL_warnhook = SvREFCNT_inc (rv_warnhook);
899 1093
900 GvSV (PL_defgv) = newSV (0); 1094 GvSV (PL_defgv) = newSV (0);
901 GvAV (PL_defgv) = coro->args; coro->args = 0; 1095 GvAV (PL_defgv) = coro->args; coro->args = 0;
902 GvSV (PL_errgv) = newSV (0); 1096 GvSV (PL_errgv) = newSV (0);
903 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1097 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 1118 /* 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. 1119 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
926 */ 1120 */
927 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1121 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 */ 1122 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1123 slf_frame.destroy = 0;
929 1124
930 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1125 /* 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; 1126 init_perl_op.op_next = PL_op;
932 coro_setup_op.op_type = OP_ENTERSUB; 1127 init_perl_op.op_type = OP_ENTERSUB;
933 coro_setup_op.op_ppaddr = pp_slf; 1128 init_perl_op.op_ppaddr = pp_slf;
934 /* no flags etc. required, as an init function won't be called */ 1129 /* no flags etc. required, as an init function won't be called */
935 1130
936 PL_op = (OP *)&coro_setup_op; 1131 PL_op = (OP *)&init_perl_op;
937 1132
938 /* copy throw, in case it was set before coro_setup */ 1133 /* copy throw, in case it was set before init_perl */
939 CORO_THROW = coro->except; 1134 CORO_THROW = coro->except;
940}
941 1135
1136 SWAP_SVS (coro);
1137
1138 if (ecb_expect_false (enable_times))
1139 {
1140 coro_times_update ();
1141 coro_times_sub (coro);
1142 }
1143}
1144
942static void 1145static void
943coro_destruct (pTHX_ struct coro *coro) 1146coro_unwind_stacks (pTHX)
944{ 1147{
945 if (!IN_DESTRUCT) 1148 if (!IN_DESTRUCT)
946 { 1149 {
947 /* restore all saved variables and stuff */ 1150 /* restore all saved variables and stuff */
948 LEAVE_SCOPE (0); 1151 LEAVE_SCOPE (0);
… …
956 POPSTACK_TO (PL_mainstack); 1159 POPSTACK_TO (PL_mainstack);
957 1160
958 /* unwind main stack */ 1161 /* unwind main stack */
959 dounwind (-1); 1162 dounwind (-1);
960 } 1163 }
1164}
961 1165
962 SvREFCNT_dec (GvSV (PL_defgv)); 1166static void
963 SvREFCNT_dec (GvAV (PL_defgv)); 1167destroy_perl (pTHX_ struct coro *coro)
964 SvREFCNT_dec (GvSV (PL_errgv)); 1168{
965 SvREFCNT_dec (PL_defoutgv); 1169 SV *svf [9];
966 SvREFCNT_dec (PL_rs);
967 SvREFCNT_dec (GvSV (irsgv));
968 SvREFCNT_dec (GvHV (PL_hintgv));
969 1170
970 SvREFCNT_dec (PL_diehook);
971 SvREFCNT_dec (PL_warnhook);
972 1171 {
1172 SV *old_current = SvRV (coro_current);
1173 struct coro *current = SvSTATE (old_current);
1174
1175 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1176
1177 save_perl (aTHX_ current);
1178
1179 /* this will cause transfer_check to croak on block*/
1180 SvRV_set (coro_current, (SV *)coro->hv);
1181
1182 load_perl (aTHX_ coro);
1183
1184 coro_unwind_stacks (aTHX);
1185
1186 /* restore swapped sv's */
1187 SWAP_SVS (coro);
1188
1189 coro_destruct_stacks (aTHX);
1190
1191 // now save some sv's to be free'd later
1192 svf [0] = GvSV (PL_defgv);
1193 svf [1] = (SV *)GvAV (PL_defgv);
1194 svf [2] = GvSV (PL_errgv);
1195 svf [3] = (SV *)PL_defoutgv;
1196 svf [4] = PL_rs;
1197 svf [5] = GvSV (irsgv);
1198 svf [6] = (SV *)GvHV (PL_hintgv);
1199 svf [7] = PL_diehook;
1200 svf [8] = PL_warnhook;
1201 assert (9 == sizeof (svf) / sizeof (*svf));
1202
1203 SvRV_set (coro_current, old_current);
1204
1205 load_perl (aTHX_ current);
1206 }
1207
1208 {
1209 unsigned int i;
1210
1211 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1212 SvREFCNT_dec (svf [i]);
1213
973 SvREFCNT_dec (coro->saved_deffh); 1214 SvREFCNT_dec (coro->saved_deffh);
974 SvREFCNT_dec (coro->rouse_cb); 1215 SvREFCNT_dec (coro->rouse_cb);
975 SvREFCNT_dec (coro->invoke_cb); 1216 SvREFCNT_dec (coro->invoke_cb);
976 SvREFCNT_dec (coro->invoke_av); 1217 SvREFCNT_dec (coro->invoke_av);
977 1218 }
978 coro_destruct_stacks (aTHX);
979} 1219}
980 1220
981INLINE void 1221ECB_INLINE void
982free_coro_mortal (pTHX) 1222free_coro_mortal (pTHX)
983{ 1223{
984 if (expect_true (coro_mortal)) 1224 if (ecb_expect_true (coro_mortal))
985 { 1225 {
986 SvREFCNT_dec (coro_mortal); 1226 SvREFCNT_dec ((SV *)coro_mortal);
987 coro_mortal = 0; 1227 coro_mortal = 0;
988 } 1228 }
989} 1229}
990 1230
991static int 1231static int
… …
1124 1364
1125 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1365 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1126} 1366}
1127 1367
1128/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1368/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1129static void NOINLINE 1369static void ecb_noinline
1130cctx_prepare (pTHX) 1370cctx_prepare (pTHX)
1131{ 1371{
1132 PL_top_env = &PL_start_env; 1372 PL_top_env = &PL_start_env;
1133 1373
1134 if (cctx_current->flags & CC_TRACE) 1374 if (cctx_current->flags & CC_TRACE)
… …
1145 slf_frame.prepare = slf_prepare_set_stacklevel; 1385 slf_frame.prepare = slf_prepare_set_stacklevel;
1146 slf_frame.check = slf_check_set_stacklevel; 1386 slf_frame.check = slf_check_set_stacklevel;
1147} 1387}
1148 1388
1149/* the tail of transfer: execute stuff we can only do after a transfer */ 1389/* the tail of transfer: execute stuff we can only do after a transfer */
1150INLINE void 1390ECB_INLINE void
1151transfer_tail (pTHX) 1391transfer_tail (pTHX)
1152{ 1392{
1153 free_coro_mortal (aTHX); 1393 free_coro_mortal (aTHX);
1154} 1394}
1155 1395
… …
1180 /* somebody or something will hit me for both perl_run and PL_restartop */ 1420 /* somebody or something will hit me for both perl_run and PL_restartop */
1181 PL_restartop = PL_op; 1421 PL_restartop = PL_op;
1182 perl_run (PL_curinterp); 1422 perl_run (PL_curinterp);
1183 /* 1423 /*
1184 * Unfortunately, there is no way to get at the return values of the 1424 * Unfortunately, there is no way to get at the return values of the
1185 * coro body here, as perl_run destroys these 1425 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1426 * runtime errors here, as this is just a random interpreter, not a thread.
1186 */ 1427 */
1187 1428
1188 /* 1429 /*
1189 * If perl-run returns we assume exit() was being called or the coro 1430 * If perl-run returns we assume exit() was being called or the coro
1190 * fell off the end, which seems to be the only valid (non-bug) 1431 * fell off the end, which seems to be the only valid (non-bug)
… …
1277cctx_destroy (coro_cctx *cctx) 1518cctx_destroy (coro_cctx *cctx)
1278{ 1519{
1279 if (!cctx) 1520 if (!cctx)
1280 return; 1521 return;
1281 1522
1282 assert (cctx != cctx_current);//D temporary 1523 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1283 1524
1284 --cctx_count; 1525 --cctx_count;
1285 coro_destroy (&cctx->cctx); 1526 coro_destroy (&cctx->cctx);
1286 1527
1287 /* coro_transfer creates new, empty cctx's */ 1528 /* coro_transfer creates new, empty cctx's */
… …
1306#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1547#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1307 1548
1308static coro_cctx * 1549static coro_cctx *
1309cctx_get (pTHX) 1550cctx_get (pTHX)
1310{ 1551{
1311 while (expect_true (cctx_first)) 1552 while (ecb_expect_true (cctx_first))
1312 { 1553 {
1313 coro_cctx *cctx = cctx_first; 1554 coro_cctx *cctx = cctx_first;
1314 cctx_first = cctx->next; 1555 cctx_first = cctx->next;
1315 --cctx_idle; 1556 --cctx_idle;
1316 1557
1317 if (expect_true (!CCTX_EXPIRED (cctx))) 1558 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1318 return cctx; 1559 return cctx;
1319 1560
1320 cctx_destroy (cctx); 1561 cctx_destroy (cctx);
1321 } 1562 }
1322 1563
… …
1327cctx_put (coro_cctx *cctx) 1568cctx_put (coro_cctx *cctx)
1328{ 1569{
1329 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1570 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1330 1571
1331 /* free another cctx if overlimit */ 1572 /* free another cctx if overlimit */
1332 if (expect_false (cctx_idle >= cctx_max_idle)) 1573 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1333 { 1574 {
1334 coro_cctx *first = cctx_first; 1575 coro_cctx *first = cctx_first;
1335 cctx_first = first->next; 1576 cctx_first = first->next;
1336 --cctx_idle; 1577 --cctx_idle;
1337 1578
… …
1348static void 1589static void
1349transfer_check (pTHX_ struct coro *prev, struct coro *next) 1590transfer_check (pTHX_ struct coro *prev, struct coro *next)
1350{ 1591{
1351 /* TODO: throwing up here is considered harmful */ 1592 /* TODO: throwing up here is considered harmful */
1352 1593
1353 if (expect_true (prev != next)) 1594 if (ecb_expect_true (prev != next))
1354 { 1595 {
1355 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1596 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1356 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); 1597 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1357 1598
1358 if (expect_false (next->flags & CF_RUNNING)) 1599 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1359 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1360
1361 if (expect_false (next->flags & CF_DESTROYED))
1362 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1600 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1363 1601
1364#if !PERL_VERSION_ATLEAST (5,10,0) 1602#if !PERL_VERSION_ATLEAST (5,10,0)
1365 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1603 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1366 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1604 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1367#endif 1605#endif
1368 } 1606 }
1369} 1607}
1370 1608
1371/* always use the TRANSFER macro */ 1609/* always use the TRANSFER macro */
1372static void NOINLINE /* noinline so we have a fixed stackframe */ 1610static void ecb_noinline /* noinline so we have a fixed stackframe */
1373transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1611transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1374{ 1612{
1375 dSTACKLEVEL; 1613 dSTACKLEVEL;
1376 1614
1377 /* sometimes transfer is only called to set idle_sp */ 1615 /* sometimes transfer is only called to set idle_sp */
1378 if (expect_false (!prev)) 1616 if (ecb_expect_false (!prev))
1379 { 1617 {
1380 cctx_current->idle_sp = STACKLEVEL; 1618 cctx_current->idle_sp = STACKLEVEL;
1381 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1619 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1382 } 1620 }
1383 else if (expect_true (prev != next)) 1621 else if (ecb_expect_true (prev != next))
1384 { 1622 {
1385 coro_cctx *cctx_prev; 1623 coro_cctx *cctx_prev;
1386 1624
1387 if (expect_false (prev->flags & CF_NEW)) 1625 if (ecb_expect_false (prev->flags & CF_NEW))
1388 { 1626 {
1389 /* create a new empty/source context */ 1627 /* create a new empty/source context */
1390 prev->flags &= ~CF_NEW; 1628 prev->flags &= ~CF_NEW;
1391 prev->flags |= CF_RUNNING; 1629 prev->flags |= CF_RUNNING;
1392 } 1630 }
… …
1395 next->flags |= CF_RUNNING; 1633 next->flags |= CF_RUNNING;
1396 1634
1397 /* first get rid of the old state */ 1635 /* first get rid of the old state */
1398 save_perl (aTHX_ prev); 1636 save_perl (aTHX_ prev);
1399 1637
1400 if (expect_false (next->flags & CF_NEW)) 1638 if (ecb_expect_false (next->flags & CF_NEW))
1401 { 1639 {
1402 /* need to start coroutine */ 1640 /* need to start coroutine */
1403 next->flags &= ~CF_NEW; 1641 next->flags &= ~CF_NEW;
1404 /* setup coroutine call */ 1642 /* setup coroutine call */
1405 coro_setup (aTHX_ next); 1643 init_perl (aTHX_ next);
1406 } 1644 }
1407 else 1645 else
1408 load_perl (aTHX_ next); 1646 load_perl (aTHX_ next);
1409 1647
1410 assert (!prev->cctx);//D temporary
1411
1412 /* possibly untie and reuse the cctx */ 1648 /* possibly untie and reuse the cctx */
1413 if (expect_true ( 1649 if (ecb_expect_true (
1414 cctx_current->idle_sp == STACKLEVEL 1650 cctx_current->idle_sp == STACKLEVEL
1415 && !(cctx_current->flags & CC_TRACE) 1651 && !(cctx_current->flags & CC_TRACE)
1416 && !force_cctx 1652 && !force_cctx
1417 )) 1653 ))
1418 { 1654 {
1419 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1655 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1420 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1656 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1421 1657
1422 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1658 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1423 /* without this the next cctx_get might destroy the running cctx while still in use */ 1659 /* without this the next cctx_get might destroy the running cctx while still in use */
1424 if (expect_false (CCTX_EXPIRED (cctx_current))) 1660 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1425 if (expect_true (!next->cctx)) 1661 if (ecb_expect_true (!next->cctx))
1426 next->cctx = cctx_get (aTHX); 1662 next->cctx = cctx_get (aTHX);
1427 1663
1428 cctx_put (cctx_current); 1664 cctx_put (cctx_current);
1429 } 1665 }
1430 else 1666 else
1431 prev->cctx = cctx_current; 1667 prev->cctx = cctx_current;
1432 1668
1433 ++next->usecount; 1669 ++next->usecount;
1434 1670
1435 cctx_prev = cctx_current; 1671 cctx_prev = cctx_current;
1436 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1672 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1437 1673
1438 next->cctx = 0; 1674 next->cctx = 0;
1439 1675
1440 if (expect_false (cctx_prev != cctx_current)) 1676 if (ecb_expect_false (cctx_prev != cctx_current))
1441 { 1677 {
1442 cctx_prev->top_env = PL_top_env; 1678 cctx_prev->top_env = PL_top_env;
1443 PL_top_env = cctx_current->top_env; 1679 PL_top_env = cctx_current->top_env;
1444 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1680 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1445 } 1681 }
… …
1451#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1687#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1452#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1688#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1453 1689
1454/** high level stuff ********************************************************/ 1690/** high level stuff ********************************************************/
1455 1691
1692/* this function is actually Coro, not Coro::State, but we call it from here */
1693/* because it is convenient - but it hasn't been declared yet for that reason */
1456static int 1694static void
1695coro_call_on_destroy (pTHX_ struct coro *coro);
1696
1697static void
1457coro_state_destroy (pTHX_ struct coro *coro) 1698coro_state_destroy (pTHX_ struct coro *coro)
1458{ 1699{
1459 if (coro->flags & CF_DESTROYED) 1700 if (coro->flags & CF_ZOMBIE)
1460 return 0; 1701 return;
1461 1702
1462 if (coro->on_destroy)
1463 coro->on_destroy (aTHX_ coro); 1703 slf_destroy (aTHX_ coro);
1464 1704
1465 coro->flags |= CF_DESTROYED; 1705 coro->flags |= CF_ZOMBIE;
1466 1706
1467 if (coro->flags & CF_READY) 1707 if (coro->flags & CF_READY)
1468 { 1708 {
1469 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1709 /* reduce nready, as destroying a ready coro effectively unreadies it */
1470 /* alternative: look through all ready queues and remove the coro */ 1710 /* alternative: look through all ready queues and remove the coro */
1471 --coro_nready; 1711 --coro_nready;
1472 } 1712 }
1473 else 1713 else
1474 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1714 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1475 1715
1476 if (coro->mainstack && coro->mainstack != main_mainstack) 1716 if (coro->next) coro->next->prev = coro->prev;
1477 { 1717 if (coro->prev) coro->prev->next = coro->next;
1478 struct coro temp; 1718 if (coro == coro_first) coro_first = coro->next;
1479 1719
1480 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1720 if (coro->mainstack
1481 1721 && coro->mainstack != main_mainstack
1482 save_perl (aTHX_ &temp); 1722 && coro->slot
1723 && !PL_dirty)
1483 load_perl (aTHX_ coro); 1724 destroy_perl (aTHX_ coro);
1484
1485 coro_destruct (aTHX_ coro);
1486
1487 load_perl (aTHX_ &temp);
1488
1489 coro->slot = 0;
1490 }
1491 1725
1492 cctx_destroy (coro->cctx); 1726 cctx_destroy (coro->cctx);
1493 SvREFCNT_dec (coro->startcv); 1727 SvREFCNT_dec (coro->startcv);
1494 SvREFCNT_dec (coro->args); 1728 SvREFCNT_dec (coro->args);
1729 SvREFCNT_dec (coro->swap_sv);
1495 SvREFCNT_dec (CORO_THROW); 1730 SvREFCNT_dec (CORO_THROW);
1496 1731
1497 if (coro->next) coro->next->prev = coro->prev; 1732 coro_call_on_destroy (aTHX_ coro);
1498 if (coro->prev) coro->prev->next = coro->next;
1499 if (coro == coro_first) coro_first = coro->next;
1500 1733
1501 return 1; 1734 /* more destruction mayhem in coro_state_free */
1502} 1735}
1503 1736
1504static int 1737static int
1505coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1738coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1506{ 1739{
1507 struct coro *coro = (struct coro *)mg->mg_ptr; 1740 struct coro *coro = (struct coro *)mg->mg_ptr;
1508 mg->mg_ptr = 0; 1741 mg->mg_ptr = 0;
1509 1742
1510 coro->hv = 0;
1511
1512 if (--coro->refcnt < 0)
1513 {
1514 coro_state_destroy (aTHX_ coro); 1743 coro_state_destroy (aTHX_ coro);
1744 SvREFCNT_dec (coro->on_destroy);
1745 SvREFCNT_dec (coro->status);
1746
1515 Safefree (coro); 1747 Safefree (coro);
1516 }
1517 1748
1518 return 0; 1749 return 0;
1519} 1750}
1520 1751
1521static int 1752static int ecb_cold
1522coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1753coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1523{ 1754{
1524 struct coro *coro = (struct coro *)mg->mg_ptr; 1755 /* called when perl clones the current process the slow way (windows process emulation) */
1525 1756 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1526 ++coro->refcnt; 1757 mg->mg_ptr = 0;
1758 mg->mg_virtual = 0;
1527 1759
1528 return 0; 1760 return 0;
1529} 1761}
1530 1762
1531static MGVTBL coro_state_vtbl = { 1763static MGVTBL coro_state_vtbl = {
… …
1554 1786
1555 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1787 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1556 TRANSFER (ta, 1); 1788 TRANSFER (ta, 1);
1557} 1789}
1558 1790
1559/*****************************************************************************/
1560/* gensub: simple closure generation utility */
1561
1562#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1563
1564/* create a closure from XS, returns a code reference */
1565/* the arg can be accessed via GENSUB_ARG from the callback */
1566/* the callback must use dXSARGS/XSRETURN */
1567static SV *
1568gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1569{
1570 CV *cv = (CV *)newSV (0);
1571
1572 sv_upgrade ((SV *)cv, SVt_PVCV);
1573
1574 CvANON_on (cv);
1575 CvISXSUB_on (cv);
1576 CvXSUB (cv) = xsub;
1577 GENSUB_ARG = arg;
1578
1579 return newRV_noinc ((SV *)cv);
1580}
1581
1582/** Coro ********************************************************************/ 1791/** Coro ********************************************************************/
1583 1792
1584INLINE void 1793ECB_INLINE void
1585coro_enq (pTHX_ struct coro *coro) 1794coro_enq (pTHX_ struct coro *coro)
1586{ 1795{
1587 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1796 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1588}
1589 1797
1590INLINE SV * 1798 SvREFCNT_inc_NN (coro->hv);
1799
1800 coro->next_ready = 0;
1801 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1802 ready [1] = coro;
1803}
1804
1805ECB_INLINE struct coro *
1591coro_deq (pTHX) 1806coro_deq (pTHX)
1592{ 1807{
1593 int prio; 1808 int prio;
1594 1809
1595 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1810 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1596 if (AvFILLp (coro_ready [prio]) >= 0) 1811 {
1597 return av_shift (coro_ready [prio]); 1812 struct coro **ready = coro_ready [prio];
1813
1814 if (ready [0])
1815 {
1816 struct coro *coro = ready [0];
1817 ready [0] = coro->next_ready;
1818 return coro;
1819 }
1820 }
1598 1821
1599 return 0; 1822 return 0;
1823}
1824
1825static void
1826invoke_sv_ready_hook_helper (void)
1827{
1828 dTHX;
1829 dSP;
1830
1831 ENTER;
1832 SAVETMPS;
1833
1834 PUSHMARK (SP);
1835 PUTBACK;
1836 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1837
1838 FREETMPS;
1839 LEAVE;
1600} 1840}
1601 1841
1602static int 1842static int
1603api_ready (pTHX_ SV *coro_sv) 1843api_ready (pTHX_ SV *coro_sv)
1604{ 1844{
1605 struct coro *coro;
1606 SV *sv_hook;
1607 void (*xs_hook)(void);
1608
1609 coro = SvSTATE (coro_sv); 1845 struct coro *coro = SvSTATE (coro_sv);
1610 1846
1611 if (coro->flags & CF_READY) 1847 if (coro->flags & CF_READY)
1612 return 0; 1848 return 0;
1613 1849
1614 coro->flags |= CF_READY; 1850 coro->flags |= CF_READY;
1615 1851
1616 sv_hook = coro_nready ? 0 : coro_readyhook;
1617 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1618
1619 coro_enq (aTHX_ coro); 1852 coro_enq (aTHX_ coro);
1620 ++coro_nready;
1621 1853
1622 if (sv_hook) 1854 if (!coro_nready++)
1623 { 1855 if (coroapi.readyhook)
1624 dSP; 1856 coroapi.readyhook ();
1625
1626 ENTER;
1627 SAVETMPS;
1628
1629 PUSHMARK (SP);
1630 PUTBACK;
1631 call_sv (sv_hook, G_VOID | G_DISCARD);
1632
1633 FREETMPS;
1634 LEAVE;
1635 }
1636
1637 if (xs_hook)
1638 xs_hook ();
1639 1857
1640 return 1; 1858 return 1;
1641} 1859}
1642 1860
1643static int 1861static int
… …
1645{ 1863{
1646 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1864 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1647} 1865}
1648 1866
1649/* expects to own a reference to next->hv */ 1867/* expects to own a reference to next->hv */
1650INLINE void 1868ECB_INLINE void
1651prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1869prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1652{ 1870{
1653 SV *prev_sv = SvRV (coro_current); 1871 SV *prev_sv = SvRV (coro_current);
1654 1872
1655 ta->prev = SvSTATE_hv (prev_sv); 1873 ta->prev = SvSTATE_hv (prev_sv);
… …
1666static void 1884static void
1667prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1885prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1668{ 1886{
1669 for (;;) 1887 for (;;)
1670 { 1888 {
1671 SV *next_sv = coro_deq (aTHX); 1889 struct coro *next = coro_deq (aTHX);
1672 1890
1673 if (expect_true (next_sv)) 1891 if (ecb_expect_true (next))
1674 { 1892 {
1675 struct coro *next = SvSTATE_hv (next_sv);
1676
1677 /* cannot transfer to destroyed coros, skip and look for next */ 1893 /* cannot transfer to destroyed coros, skip and look for next */
1678 if (expect_false (next->flags & CF_DESTROYED)) 1894 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1679 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1895 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1680 else 1896 else
1681 { 1897 {
1682 next->flags &= ~CF_READY; 1898 next->flags &= ~CF_READY;
1683 --coro_nready; 1899 --coro_nready;
1684 1900
… …
1690 { 1906 {
1691 /* nothing to schedule: call the idle handler */ 1907 /* nothing to schedule: call the idle handler */
1692 if (SvROK (sv_idle) 1908 if (SvROK (sv_idle)
1693 && SvOBJECT (SvRV (sv_idle))) 1909 && SvOBJECT (SvRV (sv_idle)))
1694 { 1910 {
1911 if (SvRV (sv_idle) == SvRV (coro_current))
1912 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1913
1695 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1914 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1696 api_ready (aTHX_ SvRV (sv_idle)); 1915 api_ready (aTHX_ SvRV (sv_idle));
1697 --coro_nready; 1916 --coro_nready;
1698 } 1917 }
1699 else 1918 else
1700 { 1919 {
1920 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1701 dSP; 1921 dSP;
1702 1922
1703 ENTER; 1923 ENTER;
1704 SAVETMPS; 1924 SAVETMPS;
1705 1925
… …
1712 } 1932 }
1713 } 1933 }
1714 } 1934 }
1715} 1935}
1716 1936
1717INLINE void 1937ECB_INLINE void
1718prepare_cede (pTHX_ struct coro_transfer_args *ta) 1938prepare_cede (pTHX_ struct coro_transfer_args *ta)
1719{ 1939{
1720 api_ready (aTHX_ coro_current); 1940 api_ready (aTHX_ coro_current);
1721 prepare_schedule (aTHX_ ta); 1941 prepare_schedule (aTHX_ ta);
1722} 1942}
1723 1943
1724INLINE void 1944ECB_INLINE void
1725prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1945prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1726{ 1946{
1727 SV *prev = SvRV (coro_current); 1947 SV *prev = SvRV (coro_current);
1728 1948
1729 if (coro_nready) 1949 if (coro_nready)
… …
1759{ 1979{
1760 struct coro_transfer_args ta; 1980 struct coro_transfer_args ta;
1761 1981
1762 prepare_cede (aTHX_ &ta); 1982 prepare_cede (aTHX_ &ta);
1763 1983
1764 if (expect_true (ta.prev != ta.next)) 1984 if (ecb_expect_true (ta.prev != ta.next))
1765 { 1985 {
1766 TRANSFER (ta, 1); 1986 TRANSFER (ta, 1);
1767 return 1; 1987 return 1;
1768 } 1988 }
1769 else 1989 else
… …
1812 coro->slot->runops = RUNOPS_DEFAULT; 2032 coro->slot->runops = RUNOPS_DEFAULT;
1813 } 2033 }
1814} 2034}
1815 2035
1816static void 2036static void
2037coro_push_av (pTHX_ AV *av, I32 gimme_v)
2038{
2039 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2040 {
2041 dSP;
2042
2043 if (gimme_v == G_SCALAR)
2044 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2045 else
2046 {
2047 int i;
2048 EXTEND (SP, AvFILLp (av) + 1);
2049
2050 for (i = 0; i <= AvFILLp (av); ++i)
2051 PUSHs (AvARRAY (av)[i]);
2052 }
2053
2054 PUTBACK;
2055 }
2056}
2057
2058static void
2059coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2060{
2061 if (!coro->on_destroy)
2062 coro->on_destroy = newAV ();
2063
2064 av_push (coro->on_destroy, cb);
2065}
2066
2067static void
2068slf_destroy_join (pTHX_ struct CoroSLF *frame)
2069{
2070 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2071}
2072
2073static int
2074slf_check_join (pTHX_ struct CoroSLF *frame)
2075{
2076 struct coro *coro = (struct coro *)frame->data;
2077
2078 if (!coro->status)
2079 return 1;
2080
2081 frame->destroy = 0;
2082
2083 coro_push_av (aTHX_ coro->status, GIMME_V);
2084
2085 SvREFCNT_dec ((SV *)coro->hv);
2086
2087 return 0;
2088}
2089
2090static void
2091slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2092{
2093 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2094
2095 if (items > 1)
2096 croak ("join called with too many arguments");
2097
2098 if (coro->status)
2099 frame->prepare = prepare_nop;
2100 else
2101 {
2102 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2103 frame->prepare = prepare_schedule;
2104 }
2105
2106 frame->check = slf_check_join;
2107 frame->destroy = slf_destroy_join;
2108 frame->data = (void *)coro;
2109 SvREFCNT_inc (coro->hv);
2110}
2111
2112static void
1817coro_call_on_destroy (pTHX_ struct coro *coro) 2113coro_call_on_destroy (pTHX_ struct coro *coro)
1818{ 2114{
1819 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2115 AV *od = coro->on_destroy;
1820 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1821 2116
1822 if (on_destroyp) 2117 if (!od)
1823 { 2118 return;
1824 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1825 2119
1826 while (AvFILLp (on_destroy) >= 0) 2120 while (AvFILLp (od) >= 0)
2121 {
2122 SV *cb = sv_2mortal (av_pop (od));
2123
2124 /* coro hv's (and only hv's at the moment) are supported as well */
2125 if (SvSTATEhv_p (aTHX_ cb))
2126 api_ready (aTHX_ cb);
2127 else
1827 { 2128 {
1828 dSP; /* don't disturb outer sp */ 2129 dSP; /* don't disturb outer sp */
1829 SV *cb = av_pop (on_destroy);
1830
1831 PUSHMARK (SP); 2130 PUSHMARK (SP);
1832 2131
1833 if (statusp) 2132 if (coro->status)
1834 { 2133 {
1835 int i; 2134 PUTBACK;
1836 AV *status = (AV *)SvRV (*statusp); 2135 coro_push_av (aTHX_ coro->status, G_ARRAY);
1837 EXTEND (SP, AvFILLp (status) + 1); 2136 SPAGAIN;
1838
1839 for (i = 0; i <= AvFILLp (status); ++i)
1840 PUSHs (AvARRAY (status)[i]);
1841 } 2137 }
1842 2138
1843 PUTBACK; 2139 PUTBACK;
1844 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2140 call_sv (cb, G_VOID | G_DISCARD);
1845 } 2141 }
1846 } 2142 }
1847} 2143}
1848 2144
1849static void 2145static void
1850slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2146coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1851{ 2147{
2148 AV *av;
2149
2150 if (coro->status)
2151 {
2152 av = coro->status;
2153 av_clear (av);
2154 }
2155 else
2156 av = coro->status = newAV ();
2157
2158 /* items are actually not so common, so optimise for this case */
2159 if (items)
2160 {
1852 int i; 2161 int i;
1853 HV *hv = (HV *)SvRV (coro_current);
1854 AV *av = newAV ();
1855 2162
1856 av_extend (av, items - 1); 2163 av_extend (av, items - 1);
2164
1857 for (i = 0; i < items; ++i) 2165 for (i = 0; i < items; ++i)
1858 av_push (av, SvREFCNT_inc_NN (arg [i])); 2166 av_push (av, SvREFCNT_inc_NN (arg [i]));
2167 }
2168}
1859 2169
1860 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2170static void
1861 2171slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2172{
1862 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2173 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1863 api_ready (aTHX_ sv_manager); 2174 api_ready (aTHX_ sv_manager);
1864 2175
1865 frame->prepare = prepare_schedule; 2176 frame->prepare = prepare_schedule;
1866 frame->check = slf_check_repeat; 2177 frame->check = slf_check_repeat;
2178
2179 /* as a minor optimisation, we could unwind all stacks here */
2180 /* but that puts extra pressure on pp_slf, and is not worth much */
2181 /*coro_unwind_stacks (aTHX);*/
2182}
2183
2184static void
2185slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2186{
2187 HV *coro_hv = (HV *)SvRV (coro_current);
2188
2189 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2190 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2191}
2192
2193static void
2194slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2195{
2196 HV *coro_hv;
2197 struct coro *coro;
2198
2199 if (items <= 0)
2200 croak ("Coro::cancel called without coro object,");
2201
2202 coro = SvSTATE (arg [0]);
2203 coro_hv = coro->hv;
2204
2205 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2206
2207 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2208 {
2209 /* coro currently busy cancelling something, so just notify it */
2210 coro->slf_frame.data = (void *)coro;
2211
2212 frame->prepare = prepare_nop;
2213 frame->check = slf_check_nop;
2214 }
2215 else if (coro_hv == (HV *)SvRV (coro_current))
2216 {
2217 /* cancelling the current coro is allowed, and equals terminate */
2218 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2219 }
2220 else
2221 {
2222 struct coro *self = SvSTATE_current;
2223
2224 /* otherwise we cancel directly, purely for speed reasons
2225 * unfortunately, this requires some magic trickery, as
2226 * somebody else could cancel us, so we have to fight the cancellation.
2227 * this is ugly, and hopefully fully worth the extra speed.
2228 * besides, I can't get the slow-but-safe version working...
2229 */
2230 slf_frame.data = 0;
2231 self->flags |= CF_NOCANCEL;
2232 coro_state_destroy (aTHX_ coro);
2233 self->flags &= ~CF_NOCANCEL;
2234
2235 if (slf_frame.data)
2236 {
2237 /* while we were busy we have been cancelled, so terminate */
2238 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2239 }
2240 else
2241 {
2242 frame->prepare = prepare_nop;
2243 frame->check = slf_check_nop;
2244 }
2245 }
2246}
2247
2248static int
2249slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2250{
2251 frame->prepare = 0;
2252 coro_unwind_stacks (aTHX);
2253
2254 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2255
2256 return 1;
2257}
2258
2259static int
2260safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2261{
2262 if (coro->cctx)
2263 croak ("coro inside C callback, unable to cancel at this time, caught");
2264
2265 if (coro->flags & CF_NEW)
2266 {
2267 coro_set_status (aTHX_ coro, arg, items);
2268 coro_state_destroy (aTHX_ coro);
2269 }
2270 else
2271 {
2272 if (!coro->slf_frame.prepare)
2273 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2274
2275 slf_destroy (aTHX_ coro);
2276
2277 coro_set_status (aTHX_ coro, arg, items);
2278 coro->slf_frame.prepare = prepare_nop;
2279 coro->slf_frame.check = slf_check_safe_cancel;
2280
2281 api_ready (aTHX_ (SV *)coro->hv);
2282 }
2283
2284 return 1;
1867} 2285}
1868 2286
1869/*****************************************************************************/ 2287/*****************************************************************************/
1870/* async pool handler */ 2288/* async pool handler */
1871 2289
… …
1902slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2320slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1903{ 2321{
1904 HV *hv = (HV *)SvRV (coro_current); 2322 HV *hv = (HV *)SvRV (coro_current);
1905 struct coro *coro = SvSTATE_hv ((SV *)hv); 2323 struct coro *coro = SvSTATE_hv ((SV *)hv);
1906 2324
1907 if (expect_true (coro->saved_deffh)) 2325 if (ecb_expect_true (coro->saved_deffh))
1908 { 2326 {
1909 /* subsequent iteration */ 2327 /* subsequent iteration */
1910 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2328 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1911 coro->saved_deffh = 0; 2329 coro->saved_deffh = 0;
1912 2330
1913 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2331 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1914 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2332 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1915 { 2333 {
1916 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2334 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1917 coro->invoke_av = newAV (); 2335 return;
1918
1919 frame->prepare = prepare_nop;
1920 } 2336 }
1921 else 2337 else
1922 { 2338 {
1923 av_clear (GvAV (PL_defgv)); 2339 av_clear (GvAV (PL_defgv));
1924 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2340 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1949 2365
1950static void 2366static void
1951coro_rouse_callback (pTHX_ CV *cv) 2367coro_rouse_callback (pTHX_ CV *cv)
1952{ 2368{
1953 dXSARGS; 2369 dXSARGS;
1954 SV *data = (SV *)GENSUB_ARG; 2370 SV *data = (SV *)S_GENSUB_ARG;
1955 2371
1956 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2372 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1957 { 2373 {
1958 /* first call, set args */ 2374 /* first call, set args */
2375 SV *coro = SvRV (data);
1959 AV *av = newAV (); 2376 AV *av = newAV ();
1960 SV *coro = SvRV (data);
1961 2377
1962 SvRV_set (data, (SV *)av); 2378 SvRV_set (data, (SV *)av);
1963 api_ready (aTHX_ coro);
1964 SvREFCNT_dec (coro);
1965 2379
1966 /* better take a full copy of the arguments */ 2380 /* better take a full copy of the arguments */
1967 while (items--) 2381 while (items--)
1968 av_store (av, items, newSVsv (ST (items))); 2382 av_store (av, items, newSVsv (ST (items)));
2383
2384 api_ready (aTHX_ coro);
2385 SvREFCNT_dec (coro);
1969 } 2386 }
1970 2387
1971 XSRETURN_EMPTY; 2388 XSRETURN_EMPTY;
1972} 2389}
1973 2390
… …
1990 2407
1991 EXTEND (SP, AvFILLp (av) + 1); 2408 EXTEND (SP, AvFILLp (av) + 1);
1992 for (i = 0; i <= AvFILLp (av); ++i) 2409 for (i = 0; i <= AvFILLp (av); ++i)
1993 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2410 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1994 2411
1995 /* we have stolen the elements, so ste length to zero and free */ 2412 /* we have stolen the elements, so set length to zero and free */
1996 AvFILLp (av) = -1; 2413 AvFILLp (av) = -1;
1997 av_undef (av); 2414 av_undef (av);
1998 2415
1999 PUTBACK; 2416 PUTBACK;
2000 } 2417 }
… …
2024 || SvTYPE (SvRV (cb)) != SVt_PVCV 2441 || SvTYPE (SvRV (cb)) != SVt_PVCV
2025 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2442 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2026 croak ("Coro::rouse_wait called with illegal callback argument,"); 2443 croak ("Coro::rouse_wait called with illegal callback argument,");
2027 2444
2028 { 2445 {
2029 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2446 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2030 SV *data = (SV *)GENSUB_ARG; 2447 SV *data = (SV *)S_GENSUB_ARG;
2031 2448
2032 frame->data = (void *)data; 2449 frame->data = (void *)data;
2033 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2450 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2034 frame->check = slf_check_rouse_wait; 2451 frame->check = slf_check_rouse_wait;
2035 } 2452 }
… …
2039coro_new_rouse_cb (pTHX) 2456coro_new_rouse_cb (pTHX)
2040{ 2457{
2041 HV *hv = (HV *)SvRV (coro_current); 2458 HV *hv = (HV *)SvRV (coro_current);
2042 struct coro *coro = SvSTATE_hv (hv); 2459 struct coro *coro = SvSTATE_hv (hv);
2043 SV *data = newRV_inc ((SV *)hv); 2460 SV *data = newRV_inc ((SV *)hv);
2044 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2461 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2045 2462
2046 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2463 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2047 SvREFCNT_dec (data); /* magicext increases the refcount */ 2464 SvREFCNT_dec (data); /* magicext increases the refcount */
2048 2465
2049 SvREFCNT_dec (coro->rouse_cb); 2466 SvREFCNT_dec (coro->rouse_cb);
… …
2146static void 2563static void
2147slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2564slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2148{ 2565{
2149 frame->prepare = prepare_cede_notself; 2566 frame->prepare = prepare_cede_notself;
2150 frame->check = slf_check_nop; 2567 frame->check = slf_check_nop;
2568}
2569
2570/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2571static void
2572slf_destroy (pTHX_ struct coro *coro)
2573{
2574 /* this callback is reserved for slf functions needing to do cleanup */
2575 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2576 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2577
2578 /*
2579 * The on_destroy above most likely is from an SLF call.
2580 * Since by definition the SLF call will not finish when we destroy
2581 * the coro, we will have to force-finish it here, otherwise
2582 * cleanup functions cannot call SLF functions.
2583 */
2584 coro->slf_frame.prepare = 0;
2151} 2585}
2152 2586
2153/* 2587/*
2154 * these not obviously related functions are all rolled into one 2588 * these not obviously related functions are all rolled into one
2155 * function to increase chances that they all will call transfer with the same 2589 * function to increase chances that they all will call transfer with the same
… …
2162 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2596 I32 checkmark; /* mark SP to see how many elements check has pushed */
2163 2597
2164 /* set up the slf frame, unless it has already been set-up */ 2598 /* set up the slf frame, unless it has already been set-up */
2165 /* the latter happens when a new coro has been started */ 2599 /* the latter happens when a new coro has been started */
2166 /* or when a new cctx was attached to an existing coroutine */ 2600 /* or when a new cctx was attached to an existing coroutine */
2167 if (expect_true (!slf_frame.prepare)) 2601 if (ecb_expect_true (!slf_frame.prepare))
2168 { 2602 {
2169 /* first iteration */ 2603 /* first iteration */
2170 dSP; 2604 dSP;
2171 SV **arg = PL_stack_base + TOPMARK + 1; 2605 SV **arg = PL_stack_base + TOPMARK + 1;
2172 int items = SP - arg; /* args without function object */ 2606 int items = SP - arg; /* args without function object */
… …
2213 while (slf_frame.check (aTHX_ &slf_frame)); 2647 while (slf_frame.check (aTHX_ &slf_frame));
2214 2648
2215 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2649 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2216 2650
2217 /* exception handling */ 2651 /* exception handling */
2218 if (expect_false (CORO_THROW)) 2652 if (ecb_expect_false (CORO_THROW))
2219 { 2653 {
2220 SV *exception = sv_2mortal (CORO_THROW); 2654 SV *exception = sv_2mortal (CORO_THROW);
2221 2655
2222 CORO_THROW = 0; 2656 CORO_THROW = 0;
2223 sv_setsv (ERRSV, exception); 2657 sv_setsv (ERRSV, exception);
2224 croak (0); 2658 croak (0);
2225 } 2659 }
2226 2660
2227 /* return value handling - mostly like entersub */ 2661 /* return value handling - mostly like entersub */
2228 /* make sure we put something on the stack in scalar context */ 2662 /* make sure we put something on the stack in scalar context */
2229 if (GIMME_V == G_SCALAR) 2663 if (GIMME_V == G_SCALAR
2664 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2230 { 2665 {
2231 dSP; 2666 dSP;
2232 SV **bot = PL_stack_base + checkmark; 2667 SV **bot = PL_stack_base + checkmark;
2233 2668
2234 if (sp == bot) /* too few, push undef */ 2669 if (sp == bot) /* too few, push undef */
2235 bot [1] = &PL_sv_undef; 2670 bot [1] = &PL_sv_undef;
2236 else if (sp != bot + 1) /* too many, take last one */ 2671 else /* too many, take last one */
2237 bot [1] = *sp; 2672 bot [1] = *sp;
2238 2673
2239 SP = bot + 1; 2674 SP = bot + 1;
2240 2675
2241 PUTBACK; 2676 PUTBACK;
… …
2274 if (PL_op->op_flags & OPf_STACKED) 2709 if (PL_op->op_flags & OPf_STACKED)
2275 { 2710 {
2276 if (items > slf_arga) 2711 if (items > slf_arga)
2277 { 2712 {
2278 slf_arga = items; 2713 slf_arga = items;
2279 free (slf_argv); 2714 Safefree (slf_argv);
2280 slf_argv = malloc (slf_arga * sizeof (SV *)); 2715 New (0, slf_argv, slf_arga, SV *);
2281 } 2716 }
2282 2717
2283 slf_argc = items; 2718 slf_argc = items;
2284 2719
2285 for (i = 0; i < items; ++i) 2720 for (i = 0; i < items; ++i)
… …
2290 2725
2291 PL_op->op_ppaddr = pp_slf; 2726 PL_op->op_ppaddr = pp_slf;
2292 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2727 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2293 2728
2294 PL_op = (OP *)&slf_restore; 2729 PL_op = (OP *)&slf_restore;
2730}
2731
2732/*****************************************************************************/
2733/* dynamic wind */
2734
2735static void
2736on_enterleave_call (pTHX_ SV *cb)
2737{
2738 dSP;
2739
2740 PUSHSTACK;
2741
2742 PUSHMARK (SP);
2743 PUTBACK;
2744 call_sv (cb, G_VOID | G_DISCARD);
2745 SPAGAIN;
2746
2747 POPSTACK;
2748}
2749
2750static SV *
2751coro_avp_pop_and_free (pTHX_ AV **avp)
2752{
2753 AV *av = *avp;
2754 SV *res = av_pop (av);
2755
2756 if (AvFILLp (av) < 0)
2757 {
2758 *avp = 0;
2759 SvREFCNT_dec (av);
2760 }
2761
2762 return res;
2763}
2764
2765static void
2766coro_pop_on_enter (pTHX_ void *coro)
2767{
2768 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2769 SvREFCNT_dec (cb);
2770}
2771
2772static void
2773coro_pop_on_leave (pTHX_ void *coro)
2774{
2775 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2776 on_enterleave_call (aTHX_ sv_2mortal (cb));
2295} 2777}
2296 2778
2297/*****************************************************************************/ 2779/*****************************************************************************/
2298/* PerlIO::cede */ 2780/* PerlIO::cede */
2299 2781
… …
2301{ 2783{
2302 PerlIOBuf base; 2784 PerlIOBuf base;
2303 NV next, every; 2785 NV next, every;
2304} PerlIOCede; 2786} PerlIOCede;
2305 2787
2306static IV 2788static IV ecb_cold
2307PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2789PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2308{ 2790{
2309 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2791 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2310 2792
2311 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2793 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2312 self->next = nvtime () + self->every; 2794 self->next = nvtime () + self->every;
2313 2795
2314 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2796 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2315} 2797}
2316 2798
2317static SV * 2799static SV * ecb_cold
2318PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2800PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2319{ 2801{
2320 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2802 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2321 2803
2322 return newSVnv (self->every); 2804 return newSVnv (self->every);
… …
2373/* Coro::Semaphore & Coro::Signal */ 2855/* Coro::Semaphore & Coro::Signal */
2374 2856
2375static SV * 2857static SV *
2376coro_waitarray_new (pTHX_ int count) 2858coro_waitarray_new (pTHX_ int count)
2377{ 2859{
2378 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2860 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2379 AV *av = newAV (); 2861 AV *av = newAV ();
2380 SV **ary; 2862 SV **ary;
2381 2863
2382 /* unfortunately, building manually saves memory */ 2864 /* unfortunately, building manually saves memory */
2383 Newx (ary, 2, SV *); 2865 Newx (ary, 2, SV *);
… …
2434 SvREFCNT_dec (cb); 2916 SvREFCNT_dec (cb);
2435 } 2917 }
2436} 2918}
2437 2919
2438static void 2920static void
2439coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2921coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2440{ 2922{
2441 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2923 /* call $sem->adjust (0) to possibly wake up some other waiters */
2442 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2924 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2443} 2925}
2444 2926
2445static int 2927static int
2446slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2928slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2447{ 2929{
2448 AV *av = (AV *)frame->data; 2930 AV *av = (AV *)frame->data;
2449 SV *count_sv = AvARRAY (av)[0]; 2931 SV *count_sv = AvARRAY (av)[0];
2932 SV *coro_hv = SvRV (coro_current);
2450 2933
2451 /* if we are about to throw, don't actually acquire the lock, just throw */ 2934 /* if we are about to throw, don't actually acquire the lock, just throw */
2452 if (CORO_THROW) 2935 if (CORO_THROW)
2453 return 0; 2936 return 0;
2454 else if (SvIVX (count_sv) > 0) 2937 else if (SvIVX (count_sv) > 0)
2455 { 2938 {
2456 SvSTATE_current->on_destroy = 0; 2939 frame->destroy = 0;
2457 2940
2458 if (acquire) 2941 if (acquire)
2459 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2942 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2460 else 2943 else
2461 coro_semaphore_adjust (aTHX_ av, 0); 2944 coro_semaphore_adjust (aTHX_ av, 0);
… …
2466 { 2949 {
2467 int i; 2950 int i;
2468 /* if we were woken up but can't down, we look through the whole */ 2951 /* if we were woken up but can't down, we look through the whole */
2469 /* waiters list and only add us if we aren't in there already */ 2952 /* waiters list and only add us if we aren't in there already */
2470 /* this avoids some degenerate memory usage cases */ 2953 /* this avoids some degenerate memory usage cases */
2471 2954 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2472 for (i = 1; i <= AvFILLp (av); ++i)
2473 if (AvARRAY (av)[i] == SvRV (coro_current)) 2955 if (AvARRAY (av)[i] == coro_hv)
2474 return 1; 2956 return 1;
2475 2957
2476 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2958 av_push (av, SvREFCNT_inc (coro_hv));
2477 return 1; 2959 return 1;
2478 } 2960 }
2479} 2961}
2480 2962
2481static int 2963static int
… …
2504 { 2986 {
2505 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2987 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2506 2988
2507 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2989 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2508 frame->prepare = prepare_schedule; 2990 frame->prepare = prepare_schedule;
2509
2510 /* to avoid race conditions when a woken-up coro gets terminated */ 2991 /* to avoid race conditions when a woken-up coro gets terminated */
2511 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2992 /* we arrange for a temporary on_destroy that calls adjust (0) */
2512 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2993 frame->destroy = coro_semaphore_destroy;
2513 } 2994 }
2514} 2995}
2515 2996
2516static void 2997static void
2517slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2998slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2525{ 3006{
2526 if (items >= 2) 3007 if (items >= 2)
2527 { 3008 {
2528 /* callback form */ 3009 /* callback form */
2529 AV *av = (AV *)SvRV (arg [0]); 3010 AV *av = (AV *)SvRV (arg [0]);
2530 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3011 SV *cb_cv = s_get_cv_croak (arg [1]);
2531 3012
2532 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3013 av_push (av, SvREFCNT_inc_NN (cb_cv));
2533 3014
2534 if (SvIVX (AvARRAY (av)[0]) > 0) 3015 if (SvIVX (AvARRAY (av)[0]) > 0)
2535 coro_semaphore_adjust (aTHX_ av, 0); 3016 coro_semaphore_adjust (aTHX_ av, 0);
2536 3017
2537 frame->prepare = prepare_nop; 3018 frame->prepare = prepare_nop;
… …
2561 AvARRAY (av)[0] = AvARRAY (av)[1]; 3042 AvARRAY (av)[0] = AvARRAY (av)[1];
2562 AvARRAY (av)[1] = cb; 3043 AvARRAY (av)[1] = cb;
2563 3044
2564 cb = av_shift (av); 3045 cb = av_shift (av);
2565 3046
3047 if (SvTYPE (cb) == SVt_PVCV)
3048 {
3049 dSP;
3050 PUSHMARK (SP);
3051 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3052 PUTBACK;
3053 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3054 }
3055 else
3056 {
2566 api_ready (aTHX_ cb); 3057 api_ready (aTHX_ cb);
2567 sv_setiv (cb, 0); /* signal waiter */ 3058 sv_setiv (cb, 0); /* signal waiter */
3059 }
3060
2568 SvREFCNT_dec (cb); 3061 SvREFCNT_dec (cb);
2569 3062
2570 --count; 3063 --count;
2571 } 3064 }
2572} 3065}
… …
2581static void 3074static void
2582slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3075slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2583{ 3076{
2584 AV *av = (AV *)SvRV (arg [0]); 3077 AV *av = (AV *)SvRV (arg [0]);
2585 3078
3079 if (items >= 2)
3080 {
3081 SV *cb_cv = s_get_cv_croak (arg [1]);
3082 av_push (av, SvREFCNT_inc_NN (cb_cv));
3083
2586 if (SvIVX (AvARRAY (av)[0])) 3084 if (SvIVX (AvARRAY (av)[0]))
3085 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3086
3087 frame->prepare = prepare_nop;
3088 frame->check = slf_check_nop;
3089 }
3090 else if (SvIVX (AvARRAY (av)[0]))
2587 { 3091 {
2588 SvIVX (AvARRAY (av)[0]) = 0; 3092 SvIVX (AvARRAY (av)[0]) = 0;
2589 frame->prepare = prepare_nop; 3093 frame->prepare = prepare_nop;
2590 frame->check = slf_check_nop; 3094 frame->check = slf_check_nop;
2591 } 3095 }
2592 else 3096 else
2593 { 3097 {
2594 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3098 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2595 3099
2596 av_push (av, waiter); 3100 av_push (av, waiter);
2597 3101
2598 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3102 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2599 frame->prepare = prepare_schedule; 3103 frame->prepare = prepare_schedule;
… …
2617 3121
2618static void 3122static void
2619coro_aio_callback (pTHX_ CV *cv) 3123coro_aio_callback (pTHX_ CV *cv)
2620{ 3124{
2621 dXSARGS; 3125 dXSARGS;
2622 AV *state = (AV *)GENSUB_ARG; 3126 AV *state = (AV *)S_GENSUB_ARG;
2623 SV *coro = av_pop (state); 3127 SV *coro = av_pop (state);
2624 SV *data_sv = newSV (sizeof (struct io_state)); 3128 SV *data_sv = newSV (sizeof (struct io_state));
2625 3129
2626 av_extend (state, items - 1); 3130 av_extend (state, items - 1);
2627 3131
… …
2712 dSP; 3216 dSP;
2713 3217
2714 static SV *prio_cv; 3218 static SV *prio_cv;
2715 static SV *prio_sv; 3219 static SV *prio_sv;
2716 3220
2717 if (expect_false (!prio_cv)) 3221 if (ecb_expect_false (!prio_cv))
2718 { 3222 {
2719 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3223 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2720 prio_sv = newSViv (0); 3224 prio_sv = newSViv (0);
2721 } 3225 }
2722 3226
… …
2741 3245
2742 for (i = 0; i < items; ++i) 3246 for (i = 0; i < items; ++i)
2743 PUSHs (arg [i]); 3247 PUSHs (arg [i]);
2744 3248
2745 /* now push the callback closure */ 3249 /* now push the callback closure */
2746 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3250 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2747 3251
2748 /* now call the AIO function - we assume our request is uncancelable */ 3252 /* now call the AIO function - we assume our request is uncancelable */
2749 PUTBACK; 3253 PUTBACK;
2750 call_sv ((SV *)req, G_VOID | G_DISCARD); 3254 call_sv ((SV *)req, G_VOID | G_DISCARD);
2751 } 3255 }
2752 3256
2753 /* now that the requets is going, we loop toll we have a result */ 3257 /* now that the request is going, we loop till we have a result */
2754 frame->data = (void *)state; 3258 frame->data = (void *)state;
2755 frame->prepare = prepare_schedule; 3259 frame->prepare = prepare_schedule;
2756 frame->check = slf_check_aio_req; 3260 frame->check = slf_check_aio_req;
2757} 3261}
2758 3262
… …
2768 3272
2769/*****************************************************************************/ 3273/*****************************************************************************/
2770 3274
2771#if CORO_CLONE 3275#if CORO_CLONE
2772# include "clone.c" 3276# include "clone.c"
3277#endif
3278
3279/*****************************************************************************/
3280
3281static SV *
3282coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3283{
3284 SV *coro_sv;
3285 struct coro *coro;
3286 MAGIC *mg;
3287 HV *hv;
3288 SV *cb;
3289 int i;
3290
3291 if (argc > 0)
3292 {
3293 cb = s_get_cv_croak (argv [0]);
3294
3295 if (!is_coro)
3296 {
3297 if (CvISXSUB (cb))
3298 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3299
3300 if (!CvROOT (cb))
3301 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3302 }
3303 }
3304
3305 Newz (0, coro, 1, struct coro);
3306 coro->args = newAV ();
3307 coro->flags = CF_NEW;
3308
3309 if (coro_first) coro_first->prev = coro;
3310 coro->next = coro_first;
3311 coro_first = coro;
3312
3313 coro->hv = hv = newHV ();
3314 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3315 mg->mg_flags |= MGf_DUP;
3316 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3317
3318 if (argc > 0)
3319 {
3320 av_extend (coro->args, argc + is_coro - 1);
3321
3322 if (is_coro)
3323 {
3324 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3325 cb = (SV *)cv_coro_run;
3326 }
3327
3328 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3329
3330 for (i = 1; i < argc; i++)
3331 av_push (coro->args, newSVsv (argv [i]));
3332 }
3333
3334 return coro_sv;
3335}
3336
3337#ifndef __cplusplus
3338ecb_cold XS(boot_Coro__State);
3339#endif
3340
3341#if CORO_JIT
3342
3343static void ecb_noinline ecb_cold
3344pushav_3uv (pTHX_ UV a, UV b, UV c)
3345{
3346 dSP;
3347 AV *av = newAV ();
3348
3349 av_store (av, 2, newSVuv (c));
3350 av_store (av, 1, newSVuv (b));
3351 av_store (av, 0, newSVuv (a));
3352
3353 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3354
3355 PUTBACK;
3356}
3357
3358static void ecb_noinline ecb_cold
3359jit_init (pTHX)
3360{
3361 dSP;
3362 SV *load, *save;
3363 char *map_base;
3364 char *load_ptr, *save_ptr;
3365 STRLEN load_len, save_len;
3366 int count;
3367
3368 PUSHMARK (SP);
3369 PUTBACK;
3370#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type));
3371# include "state.h"
3372#undef VARx
3373 count = call_pv ("Coro::State::_jit", G_ARRAY);
3374 SPAGAIN;
3375
3376 save = POPs; save_ptr = SvPVbyte (save, save_len);
3377 load = POPs; load_ptr = SvPVbyte (load, load_len);
3378
3379 map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3380
3381 assert (("Coro: unable mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3382
3383 load_perl_slots = (load_save_perl_slots_type)map_base;
3384 memcpy (map_base, load_ptr, load_len);
3385
3386 map_base += (load_len + 15) & ~15;
3387
3388 save_perl_slots = (load_save_perl_slots_type)map_base;
3389 memcpy (map_base, save_ptr, save_len);
3390}
3391
2773#endif 3392#endif
2774 3393
2775MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3394MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2776 3395
2777PROTOTYPES: DISABLE 3396PROTOTYPES: DISABLE
… …
2783 coro_thx = PERL_GET_CONTEXT; 3402 coro_thx = PERL_GET_CONTEXT;
2784# endif 3403# endif
2785#endif 3404#endif
2786 BOOT_PAGESIZE; 3405 BOOT_PAGESIZE;
2787 3406
3407 /* perl defines these to check for existance first, but why it doesn't */
3408 /* just create them one at init time is not clear to me, except for */
3409 /* programs trying to delete them, but... */
3410 /* anyway, we declare this as invalid and make sure they are initialised here */
3411 DEFSV;
3412 ERRSV;
3413
2788 cctx_current = cctx_new_empty (); 3414 cctx_current = cctx_new_empty ();
2789 3415
2790 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3416 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2791 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3417 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2792 3418
… …
2831 coroapi.prepare_nop = prepare_nop; 3457 coroapi.prepare_nop = prepare_nop;
2832 coroapi.prepare_schedule = prepare_schedule; 3458 coroapi.prepare_schedule = prepare_schedule;
2833 coroapi.prepare_cede = prepare_cede; 3459 coroapi.prepare_cede = prepare_cede;
2834 coroapi.prepare_cede_notself = prepare_cede_notself; 3460 coroapi.prepare_cede_notself = prepare_cede_notself;
2835 3461
2836 { 3462 time_init (aTHX);
2837 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2838 3463
2839 if (!svp) croak ("Time::HiRes is required");
2840 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2841
2842 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2843 }
2844
2845 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3464 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3465#if CORO_JIT
3466 PUTBACK;
3467 require_pv ("Coro/jit-" CORO_JIT_TYPE ".pl");
3468 jit_init (aTHX);
3469 perl_eval_pv ("undef &Coro::State::_jit", 1);
3470 SPAGAIN;
3471#endif
2846} 3472}
2847 3473
2848SV * 3474SV *
2849new (char *klass, ...) 3475new (SV *klass, ...)
2850 ALIAS: 3476 ALIAS:
2851 Coro::new = 1 3477 Coro::new = 1
2852 CODE: 3478 CODE:
2853{ 3479 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2854 struct coro *coro; 3480 OUTPUT:
2855 MAGIC *mg;
2856 HV *hv;
2857 CV *cb;
2858 int i;
2859
2860 if (items > 1)
2861 {
2862 cb = coro_sv_2cv (aTHX_ ST (1));
2863
2864 if (!ix)
2865 {
2866 if (CvISXSUB (cb))
2867 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2868
2869 if (!CvROOT (cb))
2870 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2871 }
2872 }
2873
2874 Newz (0, coro, 1, struct coro);
2875 coro->args = newAV ();
2876 coro->flags = CF_NEW;
2877
2878 if (coro_first) coro_first->prev = coro;
2879 coro->next = coro_first;
2880 coro_first = coro;
2881
2882 coro->hv = hv = newHV ();
2883 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2884 mg->mg_flags |= MGf_DUP;
2885 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2886
2887 if (items > 1)
2888 {
2889 av_extend (coro->args, items - 1 + ix - 1);
2890
2891 if (ix)
2892 {
2893 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2894 cb = cv_coro_run;
2895 }
2896
2897 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2898
2899 for (i = 2; i < items; i++)
2900 av_push (coro->args, newSVsv (ST (i)));
2901 }
2902}
2903 OUTPUT:
2904 RETVAL 3481 RETVAL
2905 3482
2906void 3483void
2907transfer (...) 3484transfer (...)
2908 PROTOTYPE: $$ 3485 PROTOTYPE: $$
2909 CODE: 3486 CODE:
2910 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3487 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2911 3488
2912bool
2913_destroy (SV *coro_sv)
2914 CODE:
2915 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2916 OUTPUT:
2917 RETVAL
2918
2919void 3489void
2920_exit (int code) 3490_exit (int code)
2921 PROTOTYPE: $ 3491 PROTOTYPE: $
2922 CODE: 3492 CODE:
2923 _exit (code); 3493 _exit (code);
… …
2925SV * 3495SV *
2926clone (Coro::State coro) 3496clone (Coro::State coro)
2927 CODE: 3497 CODE:
2928{ 3498{
2929#if CORO_CLONE 3499#if CORO_CLONE
2930 struct coro *ncoro = coro_clone (coro); 3500 struct coro *ncoro = coro_clone (aTHX_ coro);
2931 MAGIC *mg; 3501 MAGIC *mg;
2932 /* TODO: too much duplication */ 3502 /* TODO: too much duplication */
2933 ncoro->hv = newHV (); 3503 ncoro->hv = newHV ();
2934 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); 3504 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2935 mg->mg_flags |= MGf_DUP; 3505 mg->mg_flags |= MGf_DUP;
… …
2997 eval = 1 3567 eval = 1
2998 CODE: 3568 CODE:
2999{ 3569{
3000 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3570 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3001 { 3571 {
3002 struct coro temp; 3572 struct coro *current = SvSTATE_current;
3573 struct CoroSLF slf_save;
3003 3574
3004 if (!(coro->flags & CF_RUNNING)) 3575 if (current != coro)
3005 { 3576 {
3006 PUTBACK; 3577 PUTBACK;
3007 save_perl (aTHX_ &temp); 3578 save_perl (aTHX_ current);
3008 load_perl (aTHX_ coro); 3579 load_perl (aTHX_ coro);
3580 /* the coro is most likely in an active SLF call.
3581 * while not strictly required (the code we execute is
3582 * not allowed to call any SLF functions), it's cleaner
3583 * to reinitialise the slf_frame and restore it later.
3584 * This might one day allow us to actually do SLF calls
3585 * from code executed here.
3586 */
3587 slf_save = slf_frame;
3588 slf_frame.prepare = 0;
3589 SPAGAIN;
3009 } 3590 }
3010 3591
3011 {
3012 dSP;
3013 ENTER;
3014 SAVETMPS;
3015 PUTBACK;
3016 PUSHSTACK; 3592 PUSHSTACK;
3593
3017 PUSHMARK (SP); 3594 PUSHMARK (SP);
3595 PUTBACK;
3018 3596
3019 if (ix) 3597 if (ix)
3020 eval_sv (coderef, 0); 3598 eval_sv (coderef, 0);
3021 else 3599 else
3022 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3600 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3023 3601
3024 POPSTACK; 3602 POPSTACK;
3025 SPAGAIN; 3603 SPAGAIN;
3026 FREETMPS;
3027 LEAVE;
3028 PUTBACK;
3029 }
3030 3604
3031 if (!(coro->flags & CF_RUNNING)) 3605 if (current != coro)
3032 { 3606 {
3607 PUTBACK;
3608 slf_frame = slf_save;
3033 save_perl (aTHX_ coro); 3609 save_perl (aTHX_ coro);
3034 load_perl (aTHX_ &temp); 3610 load_perl (aTHX_ current);
3035 SPAGAIN; 3611 SPAGAIN;
3036 } 3612 }
3037 } 3613 }
3038} 3614}
3039 3615
… …
3042 PROTOTYPE: $ 3618 PROTOTYPE: $
3043 ALIAS: 3619 ALIAS:
3044 is_ready = CF_READY 3620 is_ready = CF_READY
3045 is_running = CF_RUNNING 3621 is_running = CF_RUNNING
3046 is_new = CF_NEW 3622 is_new = CF_NEW
3047 is_destroyed = CF_DESTROYED 3623 is_destroyed = CF_ZOMBIE
3624 is_zombie = CF_ZOMBIE
3625 is_suspended = CF_SUSPENDED
3048 CODE: 3626 CODE:
3049 RETVAL = boolSV (coro->flags & ix); 3627 RETVAL = boolSV (coro->flags & ix);
3050 OUTPUT: 3628 OUTPUT:
3051 RETVAL 3629 RETVAL
3052 3630
3053void 3631void
3054throw (Coro::State self, SV *throw = &PL_sv_undef) 3632throw (Coro::State self, SV *exception = &PL_sv_undef)
3055 PROTOTYPE: $;$ 3633 PROTOTYPE: $;$
3056 CODE: 3634 CODE:
3057{ 3635{
3058 struct coro *current = SvSTATE_current; 3636 struct coro *current = SvSTATE_current;
3059 SV **throwp = self == current ? &CORO_THROW : &self->except; 3637 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3060 SvREFCNT_dec (*throwp); 3638 SvREFCNT_dec (*exceptionp);
3061 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3639 SvGETMAGIC (exception);
3640 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3062} 3641}
3063 3642
3064void 3643void
3065api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3644api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3066 PROTOTYPE: $;$ 3645 PROTOTYPE: $;$
… …
3117 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3696 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3118 3697
3119 SV *tmp = *src; *src = *dst; *dst = tmp; 3698 SV *tmp = *src; *src = *dst; *dst = tmp;
3120 } 3699 }
3121 3700
3701void
3702cancel (Coro::State self)
3703 CODE:
3704 coro_state_destroy (aTHX_ self);
3705
3706SV *
3707enable_times (int enabled = enable_times)
3708 CODE:
3709{
3710 RETVAL = boolSV (enable_times);
3711
3712 if (enabled != enable_times)
3713 {
3714 enable_times = enabled;
3715
3716 coro_times_update ();
3717 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3718 }
3719}
3720 OUTPUT:
3721 RETVAL
3722
3723void
3724times (Coro::State self)
3725 PPCODE:
3726{
3727 struct coro *current = SvSTATE (coro_current);
3728
3729 if (ecb_expect_false (current == self))
3730 {
3731 coro_times_update ();
3732 coro_times_add (SvSTATE (coro_current));
3733 }
3734
3735 EXTEND (SP, 2);
3736 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3737 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3738
3739 if (ecb_expect_false (current == self))
3740 coro_times_sub (SvSTATE (coro_current));
3741}
3742
3743void
3744swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3745 CODE:
3746{
3747 struct coro *current = SvSTATE_current;
3748
3749 if (current == coro)
3750 SWAP_SVS (current);
3751
3752 if (!coro->swap_sv)
3753 coro->swap_sv = newAV ();
3754
3755 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3756 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3757
3758 if (current == coro)
3759 SWAP_SVS (current);
3760}
3761
3122 3762
3123MODULE = Coro::State PACKAGE = Coro 3763MODULE = Coro::State PACKAGE = Coro
3124 3764
3125BOOT: 3765BOOT:
3126{ 3766{
3127 int i;
3128
3129 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3767 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3130 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3768 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3131 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3769 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3132 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3133 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3770 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3134 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3771 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3135 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3772 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3136 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3773 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3137 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3774 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3138 3775
3139 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3776 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3140 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3777 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3141 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3778 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3142 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3779 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3143 3780
3144 coro_stash = gv_stashpv ("Coro", TRUE); 3781 coro_stash = gv_stashpv ("Coro", TRUE);
3145 3782
3146 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3783 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3147 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3784 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3148 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3785 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3149 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3786 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3150 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3787 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3151 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3788 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3152
3153 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3154 coro_ready[i] = newAV ();
3155 3789
3156 { 3790 {
3157 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3791 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3158 3792
3159 coroapi.schedule = api_schedule; 3793 coroapi.schedule = api_schedule;
… …
3169 sv_setiv (sv, (IV)&coroapi); 3803 sv_setiv (sv, (IV)&coroapi);
3170 SvREADONLY_on (sv); 3804 SvREADONLY_on (sv);
3171 } 3805 }
3172} 3806}
3173 3807
3808SV *
3809async (...)
3810 PROTOTYPE: &@
3811 CODE:
3812 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3813 api_ready (aTHX_ RETVAL);
3814 OUTPUT:
3815 RETVAL
3816
3817void
3818_destroy (Coro::State coro)
3819 CODE:
3820 /* used by the manager thread */
3821 coro_state_destroy (aTHX_ coro);
3822
3823void
3824on_destroy (Coro::State coro, SV *cb)
3825 CODE:
3826 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3827
3828void
3829join (...)
3830 CODE:
3831 CORO_EXECUTE_SLF_XS (slf_init_join);
3832
3174void 3833void
3175terminate (...) 3834terminate (...)
3176 CODE: 3835 CODE:
3177 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3836 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3178 3837
3179void 3838void
3839cancel (...)
3840 CODE:
3841 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3842
3843int
3844safe_cancel (Coro::State self, ...)
3845 C_ARGS: aTHX_ self, &ST (1), items - 1
3846
3847void
3180schedule (...) 3848schedule (...)
3181 CODE: 3849 CODE:
3182 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3850 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3183 3851
3184void 3852void
… …
3198 3866
3199void 3867void
3200cede_notself (...) 3868cede_notself (...)
3201 CODE: 3869 CODE:
3202 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3870 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3203
3204void
3205_cancel (Coro::State self)
3206 CODE:
3207 coro_state_destroy (aTHX_ self);
3208 coro_call_on_destroy (aTHX_ self);
3209 3871
3210void 3872void
3211_set_current (SV *current) 3873_set_current (SV *current)
3212 PROTOTYPE: $ 3874 PROTOTYPE: $
3213 CODE: 3875 CODE:
… …
3217void 3879void
3218_set_readyhook (SV *hook) 3880_set_readyhook (SV *hook)
3219 PROTOTYPE: $ 3881 PROTOTYPE: $
3220 CODE: 3882 CODE:
3221 SvREFCNT_dec (coro_readyhook); 3883 SvREFCNT_dec (coro_readyhook);
3884 SvGETMAGIC (hook);
3885 if (SvOK (hook))
3886 {
3222 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3887 coro_readyhook = newSVsv (hook);
3888 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3889 }
3890 else
3891 {
3892 coro_readyhook = 0;
3893 CORO_READYHOOK = 0;
3894 }
3223 3895
3224int 3896int
3225prio (Coro::State coro, int newprio = 0) 3897prio (Coro::State coro, int newprio = 0)
3226 PROTOTYPE: $;$ 3898 PROTOTYPE: $;$
3227 ALIAS: 3899 ALIAS:
… …
3233 if (items > 1) 3905 if (items > 1)
3234 { 3906 {
3235 if (ix) 3907 if (ix)
3236 newprio = coro->prio - newprio; 3908 newprio = coro->prio - newprio;
3237 3909
3238 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3910 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3239 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3911 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3240 3912
3241 coro->prio = newprio; 3913 coro->prio = newprio;
3242 } 3914 }
3243} 3915}
3244 OUTPUT: 3916 OUTPUT:
… …
3259 RETVAL = coro_nready; 3931 RETVAL = coro_nready;
3260 OUTPUT: 3932 OUTPUT:
3261 RETVAL 3933 RETVAL
3262 3934
3263void 3935void
3936suspend (Coro::State self)
3937 PROTOTYPE: $
3938 CODE:
3939 self->flags |= CF_SUSPENDED;
3940
3941void
3942resume (Coro::State self)
3943 PROTOTYPE: $
3944 CODE:
3945 self->flags &= ~CF_SUSPENDED;
3946
3947void
3264_pool_handler (...) 3948_pool_handler (...)
3265 CODE: 3949 CODE:
3266 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3950 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3267 3951
3268void 3952void
… …
3279 for (i = 1; i < items; ++i) 3963 for (i = 1; i < items; ++i)
3280 av_push (av, SvREFCNT_inc_NN (ST (i))); 3964 av_push (av, SvREFCNT_inc_NN (ST (i)));
3281 3965
3282 if ((SV *)hv == &PL_sv_undef) 3966 if ((SV *)hv == &PL_sv_undef)
3283 { 3967 {
3284 PUSHMARK (SP); 3968 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3285 EXTEND (SP, 2);
3286 PUSHs (sv_Coro);
3287 PUSHs ((SV *)cv_pool_handler);
3288 PUTBACK;
3289 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3290 SPAGAIN;
3291
3292 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3969 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3970 SvREFCNT_dec (sv);
3293 } 3971 }
3294 3972
3295 { 3973 {
3296 struct coro *coro = SvSTATE_hv (hv); 3974 struct coro *coro = SvSTATE_hv (hv);
3297 3975
… …
3321rouse_wait (...) 3999rouse_wait (...)
3322 PROTOTYPE: ;$ 4000 PROTOTYPE: ;$
3323 PPCODE: 4001 PPCODE:
3324 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4002 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3325 4003
4004void
4005on_enter (SV *block)
4006 ALIAS:
4007 on_leave = 1
4008 PROTOTYPE: &
4009 CODE:
4010{
4011 struct coro *coro = SvSTATE_current;
4012 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4013
4014 block = s_get_cv_croak (block);
4015
4016 if (!*avp)
4017 *avp = newAV ();
4018
4019 av_push (*avp, SvREFCNT_inc (block));
4020
4021 if (!ix)
4022 on_enterleave_call (aTHX_ block);
4023
4024 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4025 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4026 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4027}
4028
3326 4029
3327MODULE = Coro::State PACKAGE = PerlIO::cede 4030MODULE = Coro::State PACKAGE = PerlIO::cede
3328 4031
3329BOOT: 4032BOOT:
3330 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4033 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3333MODULE = Coro::State PACKAGE = Coro::Semaphore 4036MODULE = Coro::State PACKAGE = Coro::Semaphore
3334 4037
3335SV * 4038SV *
3336new (SV *klass, SV *count = 0) 4039new (SV *klass, SV *count = 0)
3337 CODE: 4040 CODE:
4041{
4042 int semcnt = 1;
4043
4044 if (count)
4045 {
4046 SvGETMAGIC (count);
4047
4048 if (SvOK (count))
4049 semcnt = SvIV (count);
4050 }
4051
3338 RETVAL = sv_bless ( 4052 RETVAL = sv_bless (
3339 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4053 coro_waitarray_new (aTHX_ semcnt),
3340 GvSTASH (CvGV (cv)) 4054 GvSTASH (CvGV (cv))
3341 ); 4055 );
4056}
3342 OUTPUT: 4057 OUTPUT:
3343 RETVAL 4058 RETVAL
3344 4059
3345# helper for Coro::Channel 4060# helper for Coro::Channel and others
3346SV * 4061SV *
3347_alloc (int count) 4062_alloc (int count)
3348 CODE: 4063 CODE:
3349 RETVAL = coro_waitarray_new (aTHX_ count); 4064 RETVAL = coro_waitarray_new (aTHX_ count);
3350 OUTPUT: 4065 OUTPUT:
… …
3408 for (i = 1; i <= wcount; ++i) 4123 for (i = 1; i <= wcount; ++i)
3409 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4124 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3410 } 4125 }
3411} 4126}
3412 4127
4128MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4129
4130void
4131_may_delete (SV *sem, int count, int extra_refs)
4132 PPCODE:
4133{
4134 AV *av = (AV *)SvRV (sem);
4135
4136 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4137 && AvFILLp (av) == 0 /* no waiters, just count */
4138 && SvIV (AvARRAY (av)[0]) == count)
4139 XSRETURN_YES;
4140
4141 XSRETURN_NO;
4142}
4143
3413MODULE = Coro::State PACKAGE = Coro::Signal 4144MODULE = Coro::State PACKAGE = Coro::Signal
3414 4145
3415SV * 4146SV *
3416new (SV *klass) 4147new (SV *klass)
3417 CODE: 4148 CODE:
… …
3488 4219
3489void 4220void
3490_register (char *target, char *proto, SV *req) 4221_register (char *target, char *proto, SV *req)
3491 CODE: 4222 CODE:
3492{ 4223{
3493 CV *req_cv = coro_sv_2cv (aTHX_ req); 4224 SV *req_cv = s_get_cv_croak (req);
3494 /* newXSproto doesn't return the CV on 5.8 */ 4225 /* newXSproto doesn't return the CV on 5.8 */
3495 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4226 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3496 sv_setpv ((SV *)slf_cv, proto); 4227 sv_setpv ((SV *)slf_cv, proto);
3497 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4228 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3498} 4229}
3499 4230
4231MODULE = Coro::State PACKAGE = Coro::Select
4232
4233void
4234patch_pp_sselect ()
4235 CODE:
4236 if (!coro_old_pp_sselect)
4237 {
4238 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4239 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4240 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4241 }
4242
4243void
4244unpatch_pp_sselect ()
4245 CODE:
4246 if (coro_old_pp_sselect)
4247 {
4248 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4249 coro_old_pp_sselect = 0;
4250 }
4251

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