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Comparing Coro/Coro/State.xs (file contents):
Revision 1.306 by root, Wed Nov 19 11:11:10 2008 UTC vs.
Revision 1.404 by root, Fri Jun 10 12:27:02 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) && PERLSUBVERSION >= (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
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif
108
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 68#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD 69# undef CORO_STACKGUARD
111#endif 70#endif
112 71
113#ifndef CORO_STACKGUARD 72#ifndef CORO_STACKGUARD
… …
127#else 86#else
128# define dSTACKLEVEL volatile void *stacklevel 87# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel) 88# define STACKLEVEL ((void *)&stacklevel)
130#endif 89#endif
131 90
132#define IN_DESTRUCT (PL_main_cv == Nullcv) 91#define IN_DESTRUCT PL_dirty
133
134#if __GNUC__ >= 3
135# define attribute(x) __attribute__(x)
136# define expect(expr,value) __builtin_expect ((expr),(value))
137# define INLINE static inline
138#else
139# define attribute(x)
140# define expect(expr,value) (expr)
141# define INLINE static
142#endif
143
144#define expect_false(expr) expect ((expr) != 0, 0)
145#define expect_true(expr) expect ((expr) != 0, 1)
146
147#define NOINLINE attribute ((noinline))
148 92
149#include "CoroAPI.h" 93#include "CoroAPI.h"
150#define GCoroAPI (&coroapi) /* very sneaky */ 94#define GCoroAPI (&coroapi) /* very sneaky */
151 95
152#ifdef USE_ITHREADS 96#ifdef USE_ITHREADS
153# if CORO_PTHREAD 97# if CORO_PTHREAD
154static void *coro_thx; 98static void *coro_thx;
155# endif 99# endif
156#endif 100#endif
157 101
102#ifdef __linux
103# include <time.h> /* for timespec */
104# include <syscall.h> /* for SYS_* */
105# ifdef SYS_clock_gettime
106# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
107# define CORO_CLOCK_MONOTONIC 1
108# define CORO_CLOCK_THREAD_CPUTIME_ID 3
109# endif
110#endif
111
158static double (*nvtime)(); /* so why doesn't it take void? */ 112static double (*nvtime)(); /* so why doesn't it take void? */
113static void (*u2time)(pTHX_ UV ret[2]);
159 114
160/* we hijack an hopefully unused CV flag for our purposes */ 115/* we hijack an hopefully unused CV flag for our purposes */
161#define CVf_SLF 0x4000 116#define CVf_SLF 0x4000
162static OP *pp_slf (pTHX); 117static OP *pp_slf (pTHX);
118static void slf_destroy (pTHX_ struct coro *coro);
163 119
164static U32 cctx_gen; 120static U32 cctx_gen;
165static size_t cctx_stacksize = CORO_STACKSIZE; 121static size_t cctx_stacksize = CORO_STACKSIZE;
166static struct CoroAPI coroapi; 122static struct CoroAPI coroapi;
167static AV *main_mainstack; /* used to differentiate between $main and others */ 123static AV *main_mainstack; /* used to differentiate between $main and others */
168static JMPENV *main_top_env; 124static JMPENV *main_top_env;
169static HV *coro_state_stash, *coro_stash; 125static HV *coro_state_stash, *coro_stash;
170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 126static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171 127
128static AV *av_destroy; /* destruction queue */
129static SV *sv_manager; /* the manager coro */
130static SV *sv_idle; /* $Coro::idle */
131
172static GV *irsgv; /* $/ */ 132static GV *irsgv; /* $/ */
173static GV *stdoutgv; /* *STDOUT */ 133static GV *stdoutgv; /* *STDOUT */
174static SV *rv_diehook; 134static SV *rv_diehook;
175static SV *rv_warnhook; 135static SV *rv_warnhook;
176static HV *hv_sig; /* %SIG */ 136static HV *hv_sig; /* %SIG */
177 137
178/* async_pool helper stuff */ 138/* async_pool helper stuff */
179static SV *sv_pool_rss; 139static SV *sv_pool_rss;
180static SV *sv_pool_size; 140static SV *sv_pool_size;
141static SV *sv_async_pool_idle; /* description string */
181static AV *av_async_pool; 142static AV *av_async_pool; /* idle pool */
143static SV *sv_Coro; /* class string */
144static CV *cv_pool_handler;
182 145
183/* Coro::AnyEvent */ 146/* Coro::AnyEvent */
184static SV *sv_activity; 147static SV *sv_activity;
185 148
149/* enable processtime/realtime profiling */
150static char enable_times;
151typedef U32 coro_ts[2];
152static coro_ts time_real, time_cpu;
153static char times_valid;
154
186static struct coro_cctx *cctx_first; 155static struct coro_cctx *cctx_first;
187static int cctx_count, cctx_idle; 156static int cctx_count, cctx_idle;
188 157
189enum { 158enum
159{
190 CC_MAPPED = 0x01, 160 CC_MAPPED = 0x01,
191 CC_NOREUSE = 0x02, /* throw this away after tracing */ 161 CC_NOREUSE = 0x02, /* throw this away after tracing */
192 CC_TRACE = 0x04, 162 CC_TRACE = 0x04,
193 CC_TRACE_SUB = 0x08, /* trace sub calls */ 163 CC_TRACE_SUB = 0x08, /* trace sub calls */
194 CC_TRACE_LINE = 0x10, /* trace each statement */ 164 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
215 int valgrind_id; 185 int valgrind_id;
216#endif 186#endif
217 unsigned char flags; 187 unsigned char flags;
218} coro_cctx; 188} coro_cctx;
219 189
190static coro_cctx *cctx_current; /* the currently running cctx */
191
192/*****************************************************************************/
193
194static MGVTBL coro_state_vtbl;
195
220enum { 196enum
197{
221 CF_RUNNING = 0x0001, /* coroutine is running */ 198 CF_RUNNING = 0x0001, /* coroutine is running */
222 CF_READY = 0x0002, /* coroutine is ready */ 199 CF_READY = 0x0002, /* coroutine is ready */
223 CF_NEW = 0x0004, /* has never been switched to */ 200 CF_NEW = 0x0004, /* has never been switched to */
224 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 201 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
202 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
203 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
225}; 204};
226 205
227/* the structure where most of the perl state is stored, overlaid on the cxstack */ 206/* the structure where most of the perl state is stored, overlaid on the cxstack */
228typedef struct 207typedef struct
229{ 208{
230 SV *defsv; 209 SV *defsv;
231 AV *defav; 210 AV *defav;
232 SV *errsv; 211 SV *errsv;
233 SV *irsgv; 212 SV *irsgv;
213 HV *hinthv;
234#define VAR(name,type) type name; 214#define VAR(name,type) type name;
235# include "state.h" 215# include "state.h"
236#undef VAR 216#undef VAR
237} perl_slots; 217} perl_slots;
238 218
219// how many context stack entries do we need for perl_slots
239#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 220#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
240 221
241/* this is a structure representing a perl-level coroutine */ 222/* this is a structure representing a perl-level coroutine */
242struct coro { 223struct coro
224{
243 /* the C coroutine allocated to this perl coroutine, if any */ 225 /* the C coroutine allocated to this perl coroutine, if any */
244 coro_cctx *cctx; 226 coro_cctx *cctx;
227
228 /* ready queue */
229 struct coro *next_ready;
245 230
246 /* state data */ 231 /* state data */
247 struct CoroSLF slf_frame; /* saved slf frame */ 232 struct CoroSLF slf_frame; /* saved slf frame */
248 AV *mainstack; 233 AV *mainstack;
249 perl_slots *slot; /* basically the saved sp */ 234 perl_slots *slot; /* basically the saved sp */
250 235
236 CV *startcv; /* the CV to execute */
251 AV *args; /* data associated with this coroutine (initial args) */ 237 AV *args; /* data associated with this coroutine (initial args) */
252 int refcnt; /* coroutines are refcounted, yes */
253 int flags; /* CF_ flags */ 238 int flags; /* CF_ flags */
254 HV *hv; /* the perl hash associated with this coro, if any */ 239 HV *hv; /* the perl hash associated with this coro, if any */
255 void (*on_destroy)(pTHX_ struct coro *coro);
256 240
257 /* statistics */ 241 /* statistics */
258 int usecount; /* number of transfers to this coro */ 242 int usecount; /* number of transfers to this coro */
259 243
260 /* coro process data */ 244 /* coro process data */
261 int prio; 245 int prio;
262 SV *except; /* exception to be thrown */ 246 SV *except; /* exception to be thrown */
263 SV *rouse_cb; 247 SV *rouse_cb; /* last rouse callback */
248 AV *on_destroy; /* callbacks or coros to notify on destroy */
249 AV *status; /* the exit status list */
264 250
265 /* async_pool */ 251 /* async_pool */
266 SV *saved_deffh; 252 SV *saved_deffh;
253 SV *invoke_cb;
254 AV *invoke_av;
255
256 /* on_enter/on_leave */
257 AV *on_enter;
258 AV *on_leave;
259
260 /* swap_sv */
261 AV *swap_sv;
262
263 /* times */
264 coro_ts t_cpu, t_real;
267 265
268 /* linked list */ 266 /* linked list */
269 struct coro *next, *prev; 267 struct coro *next, *prev;
270}; 268};
271 269
272typedef struct coro *Coro__State; 270typedef struct coro *Coro__State;
273typedef struct coro *Coro__State_or_hashref; 271typedef struct coro *Coro__State_or_hashref;
274 272
275/* the following variables are effectively part of the perl context */ 273/* the following variables are effectively part of the perl context */
276/* and get copied between struct coro and these variables */ 274/* and get copied between struct coro and these variables */
277/* the mainr easonw e don't support windows process emulation */ 275/* the main reason we don't support windows process emulation */
278static struct CoroSLF slf_frame; /* the current slf frame */ 276static struct CoroSLF slf_frame; /* the current slf frame */
279 277
280/** Coro ********************************************************************/ 278/** Coro ********************************************************************/
281 279
282#define PRIO_MAX 3 280#define CORO_PRIO_MAX 3
283#define PRIO_HIGH 1 281#define CORO_PRIO_HIGH 1
284#define PRIO_NORMAL 0 282#define CORO_PRIO_NORMAL 0
285#define PRIO_LOW -1 283#define CORO_PRIO_LOW -1
286#define PRIO_IDLE -3 284#define CORO_PRIO_IDLE -3
287#define PRIO_MIN -4 285#define CORO_PRIO_MIN -4
288 286
289/* for Coro.pm */ 287/* for Coro.pm */
290static SV *coro_current; 288static SV *coro_current;
291static SV *coro_readyhook; 289static SV *coro_readyhook;
292static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 290static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
291static CV *cv_coro_run;
293static struct coro *coro_first; 292static struct coro *coro_first;
294#define coro_nready coroapi.nready 293#define coro_nready coroapi.nready
295 294
295/** Coro::Select ************************************************************/
296
297static OP *(*coro_old_pp_sselect) (pTHX);
298static SV *coro_select_select;
299
300/* horrible hack, but if it works... */
301static OP *
302coro_pp_sselect (pTHX)
303{
304 dSP;
305 PUSHMARK (SP - 4); /* fake argument list */
306 XPUSHs (coro_select_select);
307 PUTBACK;
308
309 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
310 PL_op->op_flags |= OPf_STACKED;
311 PL_op->op_private = 0;
312 return PL_ppaddr [OP_ENTERSUB](aTHX);
313}
314
315/** time stuff **************************************************************/
316
317#ifdef HAS_GETTIMEOFDAY
318
319ECB_INLINE void
320coro_u2time (pTHX_ UV ret[2])
321{
322 struct timeval tv;
323 gettimeofday (&tv, 0);
324
325 ret [0] = tv.tv_sec;
326 ret [1] = tv.tv_usec;
327}
328
329ECB_INLINE double
330coro_nvtime ()
331{
332 struct timeval tv;
333 gettimeofday (&tv, 0);
334
335 return tv.tv_sec + tv.tv_usec * 1e-6;
336}
337
338ECB_INLINE void
339time_init (pTHX)
340{
341 nvtime = coro_nvtime;
342 u2time = coro_u2time;
343}
344
345#else
346
347ECB_INLINE void
348time_init (pTHX)
349{
350 SV **svp;
351
352 require_pv ("Time/HiRes.pm");
353
354 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
355
356 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
357 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
358
359 nvtime = INT2PTR (double (*)(), SvIV (*svp));
360
361 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
362 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
363}
364
365#endif
366
296/** lowlevel stuff **********************************************************/ 367/** lowlevel stuff **********************************************************/
297 368
298static SV * 369static SV * ecb_noinline
299coro_get_sv (pTHX_ const char *name, int create) 370coro_get_sv (pTHX_ const char *name, int create)
300{ 371{
301#if PERL_VERSION_ATLEAST (5,10,0) 372#if PERL_VERSION_ATLEAST (5,10,0)
302 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 373 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
303 get_sv (name, create); 374 get_sv (name, create);
304#endif 375#endif
305 return get_sv (name, create); 376 return get_sv (name, create);
306} 377}
307 378
308static AV * 379static AV * ecb_noinline
309coro_get_av (pTHX_ const char *name, int create) 380coro_get_av (pTHX_ const char *name, int create)
310{ 381{
311#if PERL_VERSION_ATLEAST (5,10,0) 382#if PERL_VERSION_ATLEAST (5,10,0)
312 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 383 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
313 get_av (name, create); 384 get_av (name, create);
314#endif 385#endif
315 return get_av (name, create); 386 return get_av (name, create);
316} 387}
317 388
318static HV * 389static HV * ecb_noinline
319coro_get_hv (pTHX_ const char *name, int create) 390coro_get_hv (pTHX_ const char *name, int create)
320{ 391{
321#if PERL_VERSION_ATLEAST (5,10,0) 392#if PERL_VERSION_ATLEAST (5,10,0)
322 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 393 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
323 get_hv (name, create); 394 get_hv (name, create);
324#endif 395#endif
325 return get_hv (name, create); 396 return get_hv (name, create);
326} 397}
327 398
328static AV * 399ECB_INLINE void
400coro_times_update ()
401{
402#ifdef coro_clock_gettime
403 struct timespec ts;
404
405 ts.tv_sec = ts.tv_nsec = 0;
406 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
407 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
408
409 ts.tv_sec = ts.tv_nsec = 0;
410 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
411 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
412#else
413 dTHX;
414 UV tv[2];
415
416 u2time (aTHX_ tv);
417 time_real [0] = tv [0];
418 time_real [1] = tv [1] * 1000;
419#endif
420}
421
422ECB_INLINE void
423coro_times_add (struct coro *c)
424{
425 c->t_real [1] += time_real [1];
426 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
427 c->t_real [0] += time_real [0];
428
429 c->t_cpu [1] += time_cpu [1];
430 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
431 c->t_cpu [0] += time_cpu [0];
432}
433
434ECB_INLINE void
435coro_times_sub (struct coro *c)
436{
437 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
438 c->t_real [1] -= time_real [1];
439 c->t_real [0] -= time_real [0];
440
441 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
442 c->t_cpu [1] -= time_cpu [1];
443 c->t_cpu [0] -= time_cpu [0];
444}
445
446/*****************************************************************************/
447/* magic glue */
448
449#define CORO_MAGIC_type_cv 26
450#define CORO_MAGIC_type_state PERL_MAGIC_ext
451
452#define CORO_MAGIC_NN(sv, type) \
453 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
454 ? SvMAGIC (sv) \
455 : mg_find (sv, type))
456
457#define CORO_MAGIC(sv, type) \
458 (ecb_expect_true (SvMAGIC (sv)) \
459 ? CORO_MAGIC_NN (sv, type) \
460 : 0)
461
462#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
463#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
464
465ECB_INLINE MAGIC *
466SvSTATEhv_p (pTHX_ SV *coro)
467{
468 MAGIC *mg;
469
470 if (ecb_expect_true (
471 SvTYPE (coro) == SVt_PVHV
472 && (mg = CORO_MAGIC_state (coro))
473 && mg->mg_virtual == &coro_state_vtbl
474 ))
475 return mg;
476
477 return 0;
478}
479
480ECB_INLINE struct coro *
481SvSTATE_ (pTHX_ SV *coro)
482{
483 MAGIC *mg;
484
485 if (SvROK (coro))
486 coro = SvRV (coro);
487
488 mg = SvSTATEhv_p (aTHX_ coro);
489 if (!mg)
490 croak ("Coro::State object required");
491
492 return (struct coro *)mg->mg_ptr;
493}
494
495#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
496
497/* faster than SvSTATE, but expects a coroutine hv */
498#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
499#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
500
501/*****************************************************************************/
502/* padlist management and caching */
503
504ECB_INLINE AV *
329coro_clone_padlist (pTHX_ CV *cv) 505coro_derive_padlist (pTHX_ CV *cv)
330{ 506{
331 AV *padlist = CvPADLIST (cv); 507 AV *padlist = CvPADLIST (cv);
332 AV *newpadlist, *newpad; 508 AV *newpadlist, *newpad;
333 509
334 newpadlist = newAV (); 510 newpadlist = newAV ();
… …
339 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 515 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
340#endif 516#endif
341 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 517 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
342 --AvFILLp (padlist); 518 --AvFILLp (padlist);
343 519
344 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 520 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
345 av_store (newpadlist, 1, (SV *)newpad); 521 av_store (newpadlist, 1, (SV *)newpad);
346 522
347 return newpadlist; 523 return newpadlist;
348} 524}
349 525
350static void 526ECB_INLINE void
351free_padlist (pTHX_ AV *padlist) 527free_padlist (pTHX_ AV *padlist)
352{ 528{
353 /* may be during global destruction */ 529 /* may be during global destruction */
354 if (SvREFCNT (padlist)) 530 if (!IN_DESTRUCT)
355 { 531 {
356 I32 i = AvFILLp (padlist); 532 I32 i = AvFILLp (padlist);
357 while (i >= 0) 533
534 while (i > 0) /* special-case index 0 */
358 { 535 {
359 SV **svp = av_fetch (padlist, i--, FALSE); 536 /* we try to be extra-careful here */
360 if (svp) 537 AV *av = (AV *)AvARRAY (padlist)[i--];
361 { 538 I32 j = AvFILLp (av);
362 SV *sv; 539
363 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 540 while (j >= 0)
541 SvREFCNT_dec (AvARRAY (av)[j--]);
542
543 AvFILLp (av) = -1;
364 SvREFCNT_dec (sv); 544 SvREFCNT_dec (av);
365
366 SvREFCNT_dec (*svp);
367 }
368 } 545 }
369 546
547 SvREFCNT_dec (AvARRAY (padlist)[0]);
548
549 AvFILLp (padlist) = -1;
370 SvREFCNT_dec ((SV*)padlist); 550 SvREFCNT_dec ((SV*)padlist);
371 } 551 }
372} 552}
373 553
374static int 554static int
375coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 555coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
376{ 556{
377 AV *padlist; 557 AV *padlist;
378 AV *av = (AV *)mg->mg_obj; 558 AV *av = (AV *)mg->mg_obj;
559
560 /* perl manages to free our internal AV and _then_ call us */
561 if (IN_DESTRUCT)
562 return 0;
379 563
380 /* casting is fun. */ 564 /* casting is fun. */
381 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 565 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
382 free_padlist (aTHX_ padlist); 566 free_padlist (aTHX_ padlist);
383 567
384 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 568 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
385 569
386 return 0; 570 return 0;
387} 571}
388
389#define CORO_MAGIC_type_cv 26
390#define CORO_MAGIC_type_state PERL_MAGIC_ext
391 572
392static MGVTBL coro_cv_vtbl = { 573static MGVTBL coro_cv_vtbl = {
393 0, 0, 0, 0, 574 0, 0, 0, 0,
394 coro_cv_free 575 coro_cv_free
395}; 576};
396 577
397#define CORO_MAGIC_NN(sv, type) \
398 (expect_true (SvMAGIC (sv)->mg_type == type) \
399 ? SvMAGIC (sv) \
400 : mg_find (sv, type))
401
402#define CORO_MAGIC(sv, type) \
403 (expect_true (SvMAGIC (sv)) \
404 ? CORO_MAGIC_NN (sv, type) \
405 : 0)
406
407#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
408#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
409
410INLINE struct coro *
411SvSTATE_ (pTHX_ SV *coro)
412{
413 HV *stash;
414 MAGIC *mg;
415
416 if (SvROK (coro))
417 coro = SvRV (coro);
418
419 if (expect_false (SvTYPE (coro) != SVt_PVHV))
420 croak ("Coro::State object required");
421
422 stash = SvSTASH (coro);
423 if (expect_false (stash != coro_stash && stash != coro_state_stash))
424 {
425 /* very slow, but rare, check */
426 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
427 croak ("Coro::State object required");
428 }
429
430 mg = CORO_MAGIC_state (coro);
431 return (struct coro *)mg->mg_ptr;
432}
433
434#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
435
436/* faster than SvSTATE, but expects a coroutine hv */
437#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
438#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
439
440/* the next two functions merely cache the padlists */ 578/* the next two functions merely cache the padlists */
441static void 579ECB_INLINE void
442get_padlist (pTHX_ CV *cv) 580get_padlist (pTHX_ CV *cv)
443{ 581{
444 MAGIC *mg = CORO_MAGIC_cv (cv); 582 MAGIC *mg = CORO_MAGIC_cv (cv);
445 AV *av; 583 AV *av;
446 584
447 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 585 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
448 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 586 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
449 else 587 else
450 { 588 {
451#if CORO_PREFER_PERL_FUNCTIONS 589#if CORO_PREFER_PERL_FUNCTIONS
452 /* this is probably cleaner? but also slower! */ 590 /* this is probably cleaner? but also slower! */
… …
454 CV *cp = Perl_cv_clone (aTHX_ cv); 592 CV *cp = Perl_cv_clone (aTHX_ cv);
455 CvPADLIST (cv) = CvPADLIST (cp); 593 CvPADLIST (cv) = CvPADLIST (cp);
456 CvPADLIST (cp) = 0; 594 CvPADLIST (cp) = 0;
457 SvREFCNT_dec (cp); 595 SvREFCNT_dec (cp);
458#else 596#else
459 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 597 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
460#endif 598#endif
461 } 599 }
462} 600}
463 601
464static void 602ECB_INLINE void
465put_padlist (pTHX_ CV *cv) 603put_padlist (pTHX_ CV *cv)
466{ 604{
467 MAGIC *mg = CORO_MAGIC_cv (cv); 605 MAGIC *mg = CORO_MAGIC_cv (cv);
468 AV *av; 606 AV *av;
469 607
470 if (expect_false (!mg)) 608 if (ecb_expect_false (!mg))
471 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 609 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
472 610
473 av = (AV *)mg->mg_obj; 611 av = (AV *)mg->mg_obj;
474 612
475 if (expect_false (AvFILLp (av) >= AvMAX (av))) 613 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
476 av_extend (av, AvMAX (av) + 1); 614 av_extend (av, AvFILLp (av) + 1);
477 615
478 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 616 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
479} 617}
480 618
481/** load & save, init *******************************************************/ 619/** load & save, init *******************************************************/
620
621/* swap sv heads, at least logically */
622static void
623swap_svs (pTHX_ Coro__State c)
624{
625 int i;
626
627 for (i = 0; i <= AvFILLp (c->swap_sv); )
628 {
629 SV *a = AvARRAY (c->swap_sv)[i++];
630 SV *b = AvARRAY (c->swap_sv)[i++];
631
632 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
633 SV tmp;
634
635 /* swap sv_any */
636 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
637
638 /* swap sv_flags */
639 SvFLAGS (&tmp) = SvFLAGS (a);
640 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
641 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
642
643#if PERL_VERSION_ATLEAST (5,10,0)
644 /* perl 5.10 complicates this _quite_ a bit, but it also is
645 * much faster, so no quarrels here. alternatively, we could
646 * sv_upgrade to avoid this.
647 */
648 {
649 /* swap sv_u */
650 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
651
652 /* if SvANY points to the head, we need to adjust the pointers,
653 * as the pointer for a still points to b, and maybe vice versa.
654 */
655 #define svany_in_head(type) \
656 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
657
658 if (svany_in_head (SvTYPE (a)))
659 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
660
661 if (svany_in_head (SvTYPE (b)))
662 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
663 }
664#endif
665 }
666}
667
668#define SWAP_SVS(coro) \
669 if (ecb_expect_false ((coro)->swap_sv)) \
670 swap_svs (aTHX_ (coro))
671
672static void
673on_enterleave_call (pTHX_ SV *cb);
482 674
483static void 675static void
484load_perl (pTHX_ Coro__State c) 676load_perl (pTHX_ Coro__State c)
485{ 677{
486 perl_slots *slot = c->slot; 678 perl_slots *slot = c->slot;
487 c->slot = 0; 679 c->slot = 0;
488 680
489 PL_mainstack = c->mainstack; 681 PL_mainstack = c->mainstack;
490 682
491 GvSV (PL_defgv) = slot->defsv; 683 GvSV (PL_defgv) = slot->defsv;
492 GvAV (PL_defgv) = slot->defav; 684 GvAV (PL_defgv) = slot->defav;
493 GvSV (PL_errgv) = slot->errsv; 685 GvSV (PL_errgv) = slot->errsv;
494 GvSV (irsgv) = slot->irsgv; 686 GvSV (irsgv) = slot->irsgv;
687 GvHV (PL_hintgv) = slot->hinthv;
495 688
496 #define VAR(name,type) PL_ ## name = slot->name; 689 #define VAR(name,type) PL_ ## name = slot->name;
497 # include "state.h" 690 # include "state.h"
498 #undef VAR 691 #undef VAR
499 692
… …
501 dSP; 694 dSP;
502 695
503 CV *cv; 696 CV *cv;
504 697
505 /* now do the ugly restore mess */ 698 /* now do the ugly restore mess */
506 while (expect_true (cv = (CV *)POPs)) 699 while (ecb_expect_true (cv = (CV *)POPs))
507 { 700 {
508 put_padlist (aTHX_ cv); /* mark this padlist as available */ 701 put_padlist (aTHX_ cv); /* mark this padlist as available */
509 CvDEPTH (cv) = PTR2IV (POPs); 702 CvDEPTH (cv) = PTR2IV (POPs);
510 CvPADLIST (cv) = (AV *)POPs; 703 CvPADLIST (cv) = (AV *)POPs;
511 } 704 }
… …
513 PUTBACK; 706 PUTBACK;
514 } 707 }
515 708
516 slf_frame = c->slf_frame; 709 slf_frame = c->slf_frame;
517 CORO_THROW = c->except; 710 CORO_THROW = c->except;
711
712 if (ecb_expect_false (enable_times))
713 {
714 if (ecb_expect_false (!times_valid))
715 coro_times_update ();
716
717 coro_times_sub (c);
718 }
719
720 if (ecb_expect_false (c->on_enter))
721 {
722 int i;
723
724 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
725 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
726 }
727
728 SWAP_SVS (c);
518} 729}
519 730
520static void 731static void
521save_perl (pTHX_ Coro__State c) 732save_perl (pTHX_ Coro__State c)
522{ 733{
734 SWAP_SVS (c);
735
736 if (ecb_expect_false (c->on_leave))
737 {
738 int i;
739
740 for (i = AvFILLp (c->on_leave); i >= 0; --i)
741 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
742 }
743
744 times_valid = 0;
745
746 if (ecb_expect_false (enable_times))
747 {
748 coro_times_update (); times_valid = 1;
749 coro_times_add (c);
750 }
751
523 c->except = CORO_THROW; 752 c->except = CORO_THROW;
524 c->slf_frame = slf_frame; 753 c->slf_frame = slf_frame;
525 754
526 { 755 {
527 dSP; 756 dSP;
… …
536 765
537 XPUSHs (Nullsv); 766 XPUSHs (Nullsv);
538 /* this loop was inspired by pp_caller */ 767 /* this loop was inspired by pp_caller */
539 for (;;) 768 for (;;)
540 { 769 {
541 while (expect_true (cxix >= 0)) 770 while (ecb_expect_true (cxix >= 0))
542 { 771 {
543 PERL_CONTEXT *cx = &ccstk[cxix--]; 772 PERL_CONTEXT *cx = &ccstk[cxix--];
544 773
545 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 774 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
546 { 775 {
547 CV *cv = cx->blk_sub.cv; 776 CV *cv = cx->blk_sub.cv;
548 777
549 if (expect_true (CvDEPTH (cv))) 778 if (ecb_expect_true (CvDEPTH (cv)))
550 { 779 {
551 EXTEND (SP, 3); 780 EXTEND (SP, 3);
552 PUSHs ((SV *)CvPADLIST (cv)); 781 PUSHs ((SV *)CvPADLIST (cv));
553 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 782 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
554 PUSHs ((SV *)cv); 783 PUSHs ((SV *)cv);
… …
557 get_padlist (aTHX_ cv); 786 get_padlist (aTHX_ cv);
558 } 787 }
559 } 788 }
560 } 789 }
561 790
562 if (expect_true (top_si->si_type == PERLSI_MAIN)) 791 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
563 break; 792 break;
564 793
565 top_si = top_si->si_prev; 794 top_si = top_si->si_prev;
566 ccstk = top_si->si_cxstack; 795 ccstk = top_si->si_cxstack;
567 cxix = top_si->si_cxix; 796 cxix = top_si->si_cxix;
… …
569 798
570 PUTBACK; 799 PUTBACK;
571 } 800 }
572 801
573 /* allocate some space on the context stack for our purposes */ 802 /* allocate some space on the context stack for our purposes */
574 /* we manually unroll here, as usually 2 slots is enough */ 803 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
575 if (SLOT_COUNT >= 1) CXINC;
576 if (SLOT_COUNT >= 2) CXINC;
577 if (SLOT_COUNT >= 3) CXINC;
578 { 804 {
579 int i; 805 unsigned int i;
806
580 for (i = 3; i < SLOT_COUNT; ++i) 807 for (i = 0; i < SLOT_COUNT; ++i)
581 CXINC; 808 CXINC;
582 } 809
583 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 810 cxstack_ix -= SLOT_COUNT; /* undo allocation */
811 }
584 812
585 c->mainstack = PL_mainstack; 813 c->mainstack = PL_mainstack;
586 814
587 { 815 {
588 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 816 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
589 817
590 slot->defav = GvAV (PL_defgv); 818 slot->defav = GvAV (PL_defgv);
591 slot->defsv = DEFSV; 819 slot->defsv = DEFSV;
592 slot->errsv = ERRSV; 820 slot->errsv = ERRSV;
593 slot->irsgv = GvSV (irsgv); 821 slot->irsgv = GvSV (irsgv);
822 slot->hinthv = GvHV (PL_hintgv);
594 823
595 #define VAR(name,type) slot->name = PL_ ## name; 824 #define VAR(name,type) slot->name = PL_ ## name;
596 # include "state.h" 825 # include "state.h"
597 #undef VAR 826 #undef VAR
598 } 827 }
… …
608# define coro_init_stacks(thx) init_stacks () 837# define coro_init_stacks(thx) init_stacks ()
609#else 838#else
610static void 839static void
611coro_init_stacks (pTHX) 840coro_init_stacks (pTHX)
612{ 841{
613 PL_curstackinfo = new_stackinfo(32, 8); 842 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
614 PL_curstackinfo->si_type = PERLSI_MAIN; 843 PL_curstackinfo->si_type = PERLSI_MAIN;
615 PL_curstack = PL_curstackinfo->si_stack; 844 PL_curstack = PL_curstackinfo->si_stack;
616 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 845 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
617 846
618 PL_stack_base = AvARRAY(PL_curstack); 847 PL_stack_base = AvARRAY(PL_curstack);
… …
676#if !PERL_VERSION_ATLEAST (5,10,0) 905#if !PERL_VERSION_ATLEAST (5,10,0)
677 Safefree (PL_retstack); 906 Safefree (PL_retstack);
678#endif 907#endif
679} 908}
680 909
910#define CORO_RSS \
911 rss += sizeof (SYM (curstackinfo)); \
912 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
913 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
914 rss += SYM (tmps_max) * sizeof (SV *); \
915 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
916 rss += SYM (scopestack_max) * sizeof (I32); \
917 rss += SYM (savestack_max) * sizeof (ANY);
918
681static size_t 919static size_t
682coro_rss (pTHX_ struct coro *coro) 920coro_rss (pTHX_ struct coro *coro)
683{ 921{
684 size_t rss = sizeof (*coro); 922 size_t rss = sizeof (*coro);
685 923
686 if (coro->mainstack) 924 if (coro->mainstack)
687 { 925 {
688 perl_slots tmp_slot;
689 perl_slots *slot;
690
691 if (coro->flags & CF_RUNNING) 926 if (coro->flags & CF_RUNNING)
692 { 927 {
693 slot = &tmp_slot; 928 #define SYM(sym) PL_ ## sym
694 929 CORO_RSS;
695 #define VAR(name,type) slot->name = PL_ ## name;
696 # include "state.h"
697 #undef VAR 930 #undef SYM
698 } 931 }
699 else 932 else
700 slot = coro->slot;
701
702 if (slot)
703 { 933 {
704 rss += sizeof (slot->curstackinfo); 934 #define SYM(sym) coro->slot->sym
705 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 935 CORO_RSS;
706 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 936 #undef SYM
707 rss += slot->tmps_max * sizeof (SV *);
708 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
709 rss += slot->scopestack_max * sizeof (I32);
710 rss += slot->savestack_max * sizeof (ANY);
711
712#if !PERL_VERSION_ATLEAST (5,10,0)
713 rss += slot->retstack_max * sizeof (OP *);
714#endif
715 } 937 }
716 } 938 }
717 939
718 return rss; 940 return rss;
719} 941}
… …
732#endif 954#endif
733 955
734/* 956/*
735 * This overrides the default magic get method of %SIG elements. 957 * This overrides the default magic get method of %SIG elements.
736 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 958 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
737 * and instead of tryign to save and restore the hash elements, we just provide 959 * and instead of trying to save and restore the hash elements (extremely slow),
738 * readback here. 960 * we just provide our own readback here.
739 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
740 * not expecting this to actually change the hook. This is a potential problem
741 * when a schedule happens then, but we ignore this.
742 */ 961 */
743static int 962static int ecb_cold
744coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 963coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
745{ 964{
746 const char *s = MgPV_nolen_const (mg); 965 const char *s = MgPV_nolen_const (mg);
747 966
748 if (*s == '_') 967 if (*s == '_')
… …
760 } 979 }
761 980
762 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 981 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
763} 982}
764 983
765static int 984static int ecb_cold
766coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 985coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
767{ 986{
768 const char *s = MgPV_nolen_const (mg); 987 const char *s = MgPV_nolen_const (mg);
769 988
770 if (*s == '_') 989 if (*s == '_')
… …
784 } 1003 }
785 1004
786 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1005 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
787} 1006}
788 1007
789static int 1008static int ecb_cold
790coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1009coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
791{ 1010{
792 const char *s = MgPV_nolen_const (mg); 1011 const char *s = MgPV_nolen_const (mg);
793 1012
794 if (*s == '_') 1013 if (*s == '_')
… …
799 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1018 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
800 1019
801 if (svp) 1020 if (svp)
802 { 1021 {
803 SV *old = *svp; 1022 SV *old = *svp;
804 *svp = newSVsv (sv); 1023 *svp = SvOK (sv) ? newSVsv (sv) : 0;
805 SvREFCNT_dec (old); 1024 SvREFCNT_dec (old);
806 return 0; 1025 return 0;
807 } 1026 }
808 } 1027 }
809 1028
… …
821slf_check_nop (pTHX_ struct CoroSLF *frame) 1040slf_check_nop (pTHX_ struct CoroSLF *frame)
822{ 1041{
823 return 0; 1042 return 0;
824} 1043}
825 1044
826static UNOP coro_setup_op; 1045static int
1046slf_check_repeat (pTHX_ struct CoroSLF *frame)
1047{
1048 return 1;
1049}
827 1050
828static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1051static UNOP init_perl_op;
1052
1053ecb_noinline static void /* noinline to keep it out of the transfer fast path */
829coro_setup (pTHX_ struct coro *coro) 1054init_perl (pTHX_ struct coro *coro)
830{ 1055{
831 /* 1056 /*
832 * emulate part of the perl startup here. 1057 * emulate part of the perl startup here.
833 */ 1058 */
834 coro_init_stacks (aTHX); 1059 coro_init_stacks (aTHX);
835 1060
836 PL_runops = RUNOPS_DEFAULT; 1061 PL_runops = RUNOPS_DEFAULT;
837 PL_curcop = &PL_compiling; 1062 PL_curcop = &PL_compiling;
838 PL_in_eval = EVAL_NULL; 1063 PL_in_eval = EVAL_NULL;
839 PL_comppad = 0; 1064 PL_comppad = 0;
1065 PL_comppad_name = 0;
1066 PL_comppad_name_fill = 0;
1067 PL_comppad_name_floor = 0;
840 PL_curpm = 0; 1068 PL_curpm = 0;
841 PL_curpad = 0; 1069 PL_curpad = 0;
842 PL_localizing = 0; 1070 PL_localizing = 0;
843 PL_dirty = 0;
844 PL_restartop = 0; 1071 PL_restartop = 0;
845#if PERL_VERSION_ATLEAST (5,10,0) 1072#if PERL_VERSION_ATLEAST (5,10,0)
846 PL_parser = 0; 1073 PL_parser = 0;
847#endif 1074#endif
1075 PL_hints = 0;
848 1076
849 /* recreate the die/warn hooks */ 1077 /* recreate the die/warn hooks */
850 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1078 PL_diehook = SvREFCNT_inc (rv_diehook);
851 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1079 PL_warnhook = SvREFCNT_inc (rv_warnhook);
852 1080
853 GvSV (PL_defgv) = newSV (0); 1081 GvSV (PL_defgv) = newSV (0);
854 GvAV (PL_defgv) = coro->args; coro->args = 0; 1082 GvAV (PL_defgv) = coro->args; coro->args = 0;
855 GvSV (PL_errgv) = newSV (0); 1083 GvSV (PL_errgv) = newSV (0);
856 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1084 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1085 GvHV (PL_hintgv) = 0;
857 PL_rs = newSVsv (GvSV (irsgv)); 1086 PL_rs = newSVsv (GvSV (irsgv));
858 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1087 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
859 1088
860 { 1089 {
861 dSP; 1090 dSP;
862 UNOP myop; 1091 UNOP myop;
863 1092
864 Zero (&myop, 1, UNOP); 1093 Zero (&myop, 1, UNOP);
865 myop.op_next = Nullop; 1094 myop.op_next = Nullop;
1095 myop.op_type = OP_ENTERSUB;
866 myop.op_flags = OPf_WANT_VOID; 1096 myop.op_flags = OPf_WANT_VOID;
867 1097
868 PUSHMARK (SP); 1098 PUSHMARK (SP);
869 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 1099 PUSHs ((SV *)coro->startcv);
870 PUTBACK; 1100 PUTBACK;
871 PL_op = (OP *)&myop; 1101 PL_op = (OP *)&myop;
872 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1102 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
873 SPAGAIN;
874 } 1103 }
875 1104
876 /* this newly created coroutine might be run on an existing cctx which most 1105 /* this newly created coroutine might be run on an existing cctx which most
877 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1106 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
878 */ 1107 */
879 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1108 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
880 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1109 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1110 slf_frame.destroy = 0;
881 1111
882 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1112 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
883 coro_setup_op.op_next = PL_op; 1113 init_perl_op.op_next = PL_op;
884 coro_setup_op.op_type = OP_CUSTOM; 1114 init_perl_op.op_type = OP_ENTERSUB;
885 coro_setup_op.op_ppaddr = pp_slf; 1115 init_perl_op.op_ppaddr = pp_slf;
886 /* no flags required, as an init function won't be called */ 1116 /* no flags etc. required, as an init function won't be called */
887 1117
888 PL_op = (OP *)&coro_setup_op; 1118 PL_op = (OP *)&init_perl_op;
889 1119
890 /* copy throw, in case it was set before coro_setup */ 1120 /* copy throw, in case it was set before init_perl */
891 CORO_THROW = coro->except; 1121 CORO_THROW = coro->except;
892}
893 1122
1123 SWAP_SVS (coro);
1124
1125 if (ecb_expect_false (enable_times))
1126 {
1127 coro_times_update ();
1128 coro_times_sub (coro);
1129 }
1130}
1131
894static void 1132static void
895coro_destruct (pTHX_ struct coro *coro) 1133coro_unwind_stacks (pTHX)
896{ 1134{
897 if (!IN_DESTRUCT) 1135 if (!IN_DESTRUCT)
898 { 1136 {
899 /* restore all saved variables and stuff */ 1137 /* restore all saved variables and stuff */
900 LEAVE_SCOPE (0); 1138 LEAVE_SCOPE (0);
… …
908 POPSTACK_TO (PL_mainstack); 1146 POPSTACK_TO (PL_mainstack);
909 1147
910 /* unwind main stack */ 1148 /* unwind main stack */
911 dounwind (-1); 1149 dounwind (-1);
912 } 1150 }
1151}
913 1152
914 SvREFCNT_dec (GvSV (PL_defgv)); 1153static void
915 SvREFCNT_dec (GvAV (PL_defgv)); 1154destroy_perl (pTHX_ struct coro *coro)
916 SvREFCNT_dec (GvSV (PL_errgv)); 1155{
917 SvREFCNT_dec (PL_defoutgv); 1156 SV *svf [9];
918 SvREFCNT_dec (PL_rs);
919 SvREFCNT_dec (GvSV (irsgv));
920 1157
921 SvREFCNT_dec (PL_diehook);
922 SvREFCNT_dec (PL_warnhook);
923 1158 {
924 SvREFCNT_dec (CORO_THROW); 1159 SV *old_current = SvRV (coro_current);
1160 struct coro *current = SvSTATE (old_current);
1161
1162 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1163
1164 save_perl (aTHX_ current);
1165
1166 /* this will cause transfer_check to croak on block*/
1167 SvRV_set (coro_current, (SV *)coro->hv);
1168
1169 load_perl (aTHX_ coro);
1170
1171 coro_unwind_stacks (aTHX);
1172
1173 /* restore swapped sv's */
1174 SWAP_SVS (coro);
1175
1176 coro_destruct_stacks (aTHX);
1177
1178 // now save some sv's to be free'd later
1179 svf [0] = GvSV (PL_defgv);
1180 svf [1] = (SV *)GvAV (PL_defgv);
1181 svf [2] = GvSV (PL_errgv);
1182 svf [3] = (SV *)PL_defoutgv;
1183 svf [4] = PL_rs;
1184 svf [5] = GvSV (irsgv);
1185 svf [6] = (SV *)GvHV (PL_hintgv);
1186 svf [7] = PL_diehook;
1187 svf [8] = PL_warnhook;
1188 assert (9 == sizeof (svf) / sizeof (*svf));
1189
1190 SvRV_set (coro_current, old_current);
1191
1192 load_perl (aTHX_ current);
1193 }
1194
1195 {
1196 unsigned int i;
1197
1198 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1199 SvREFCNT_dec (svf [i]);
1200
925 SvREFCNT_dec (coro->saved_deffh); 1201 SvREFCNT_dec (coro->saved_deffh);
926 SvREFCNT_dec (coro->rouse_cb); 1202 SvREFCNT_dec (coro->rouse_cb);
927 1203 SvREFCNT_dec (coro->invoke_cb);
928 coro_destruct_stacks (aTHX); 1204 SvREFCNT_dec (coro->invoke_av);
1205 }
929} 1206}
930 1207
931INLINE void 1208ECB_INLINE void
932free_coro_mortal (pTHX) 1209free_coro_mortal (pTHX)
933{ 1210{
934 if (expect_true (coro_mortal)) 1211 if (ecb_expect_true (coro_mortal))
935 { 1212 {
936 SvREFCNT_dec (coro_mortal); 1213 SvREFCNT_dec ((SV *)coro_mortal);
937 coro_mortal = 0; 1214 coro_mortal = 0;
938 } 1215 }
939} 1216}
940 1217
941static int 1218static int
942runops_trace (pTHX) 1219runops_trace (pTHX)
943{ 1220{
944 COP *oldcop = 0; 1221 COP *oldcop = 0;
945 int oldcxix = -2; 1222 int oldcxix = -2;
946 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
947 coro_cctx *cctx = coro->cctx;
948 1223
949 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1224 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
950 { 1225 {
951 PERL_ASYNC_CHECK (); 1226 PERL_ASYNC_CHECK ();
952 1227
953 if (cctx->flags & CC_TRACE_ALL) 1228 if (cctx_current->flags & CC_TRACE_ALL)
954 { 1229 {
955 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1230 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
956 { 1231 {
957 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1232 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
958 SV **bot, **top; 1233 SV **bot, **top;
959 AV *av = newAV (); /* return values */ 1234 AV *av = newAV (); /* return values */
960 SV **cb; 1235 SV **cb;
… …
997 1272
998 if (PL_curcop != &PL_compiling) 1273 if (PL_curcop != &PL_compiling)
999 { 1274 {
1000 SV **cb; 1275 SV **cb;
1001 1276
1002 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1277 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1003 { 1278 {
1004 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1279 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1005 1280
1006 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1281 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1007 { 1282 {
1008 runops_proc_t old_runops = PL_runops;
1009 dSP; 1283 dSP;
1010 GV *gv = CvGV (cx->blk_sub.cv); 1284 GV *gv = CvGV (cx->blk_sub.cv);
1011 SV *fullname = sv_2mortal (newSV (0)); 1285 SV *fullname = sv_2mortal (newSV (0));
1012 1286
1013 if (isGV (gv)) 1287 if (isGV (gv))
… …
1018 SAVETMPS; 1292 SAVETMPS;
1019 EXTEND (SP, 3); 1293 EXTEND (SP, 3);
1020 PUSHMARK (SP); 1294 PUSHMARK (SP);
1021 PUSHs (&PL_sv_yes); 1295 PUSHs (&PL_sv_yes);
1022 PUSHs (fullname); 1296 PUSHs (fullname);
1023 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1297 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1024 PUTBACK; 1298 PUTBACK;
1025 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1299 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1026 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1300 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1027 SPAGAIN; 1301 SPAGAIN;
1028 FREETMPS; 1302 FREETMPS;
… …
1031 } 1305 }
1032 1306
1033 oldcxix = cxstack_ix; 1307 oldcxix = cxstack_ix;
1034 } 1308 }
1035 1309
1036 if (cctx->flags & CC_TRACE_LINE) 1310 if (cctx_current->flags & CC_TRACE_LINE)
1037 { 1311 {
1038 dSP; 1312 dSP;
1039 1313
1040 PL_runops = RUNOPS_DEFAULT; 1314 PL_runops = RUNOPS_DEFAULT;
1041 ENTER; 1315 ENTER;
… …
1060 1334
1061 TAINT_NOT; 1335 TAINT_NOT;
1062 return 0; 1336 return 0;
1063} 1337}
1064 1338
1065static struct coro_cctx *cctx_ssl_cctx;
1066static struct CoroSLF cctx_ssl_frame; 1339static struct CoroSLF cctx_ssl_frame;
1067 1340
1068static void 1341static void
1069slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1342slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1070{ 1343{
1071 ta->prev = (struct coro *)cctx_ssl_cctx;
1072 ta->next = 0; 1344 ta->prev = 0;
1073} 1345}
1074 1346
1075static int 1347static int
1076slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1348slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1077{ 1349{
… …
1079 1351
1080 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1352 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1081} 1353}
1082 1354
1083/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1355/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1084static void NOINLINE 1356static void ecb_noinline
1085cctx_prepare (pTHX_ coro_cctx *cctx) 1357cctx_prepare (pTHX)
1086{ 1358{
1087 PL_top_env = &PL_start_env; 1359 PL_top_env = &PL_start_env;
1088 1360
1089 if (cctx->flags & CC_TRACE) 1361 if (cctx_current->flags & CC_TRACE)
1090 PL_runops = runops_trace; 1362 PL_runops = runops_trace;
1091 1363
1092 /* we already must be executing an SLF op, there is no other valid way 1364 /* we already must be executing an SLF op, there is no other valid way
1093 * that can lead to creation of a new cctx */ 1365 * that can lead to creation of a new cctx */
1094 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1366 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1095 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1367 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1096 1368
1097 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1369 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1098 cctx_ssl_cctx = cctx;
1099 cctx_ssl_frame = slf_frame; 1370 cctx_ssl_frame = slf_frame;
1100 1371
1101 slf_frame.prepare = slf_prepare_set_stacklevel; 1372 slf_frame.prepare = slf_prepare_set_stacklevel;
1102 slf_frame.check = slf_check_set_stacklevel; 1373 slf_frame.check = slf_check_set_stacklevel;
1103} 1374}
1104 1375
1105/* the tail of transfer: execute stuff we can only do after a transfer */ 1376/* the tail of transfer: execute stuff we can only do after a transfer */
1106INLINE void 1377ECB_INLINE void
1107transfer_tail (pTHX) 1378transfer_tail (pTHX)
1108{ 1379{
1109 free_coro_mortal (aTHX); 1380 free_coro_mortal (aTHX);
1110} 1381}
1111 1382
… …
1126 /* normally we would need to skip the entersub here */ 1397 /* normally we would need to skip the entersub here */
1127 /* not doing so will re-execute it, which is exactly what we want */ 1398 /* not doing so will re-execute it, which is exactly what we want */
1128 /* PL_nop = PL_nop->op_next */ 1399 /* PL_nop = PL_nop->op_next */
1129 1400
1130 /* inject a fake subroutine call to cctx_init */ 1401 /* inject a fake subroutine call to cctx_init */
1131 cctx_prepare (aTHX_ (coro_cctx *)arg); 1402 cctx_prepare (aTHX);
1132 1403
1133 /* cctx_run is the alternative tail of transfer() */ 1404 /* cctx_run is the alternative tail of transfer() */
1134 transfer_tail (aTHX); 1405 transfer_tail (aTHX);
1135 1406
1136 /* somebody or something will hit me for both perl_run and PL_restartop */ 1407 /* somebody or something will hit me for both perl_run and PL_restartop */
1137 PL_restartop = PL_op; 1408 PL_restartop = PL_op;
1138 perl_run (PL_curinterp); 1409 perl_run (PL_curinterp);
1410 /*
1411 * Unfortunately, there is no way to get at the return values of the
1412 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1413 * runtime errors here, as this is just a random interpreter, not a thread.
1414 */
1139 1415
1140 /* 1416 /*
1141 * If perl-run returns we assume exit() was being called or the coro 1417 * If perl-run returns we assume exit() was being called or the coro
1142 * fell off the end, which seems to be the only valid (non-bug) 1418 * fell off the end, which seems to be the only valid (non-bug)
1143 * reason for perl_run to return. We try to exit by jumping to the 1419 * reason for perl_run to return. We try to exit by jumping to the
1144 * bootstrap-time "top" top_env, as we cannot restore the "main" 1420 * bootstrap-time "top" top_env, as we cannot restore the "main"
1145 * coroutine as Coro has no such concept 1421 * coroutine as Coro has no such concept.
1422 * This actually isn't valid with the pthread backend, but OSes requiring
1423 * that backend are too broken to do it in a standards-compliant way.
1146 */ 1424 */
1147 PL_top_env = main_top_env; 1425 PL_top_env = main_top_env;
1148 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1426 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1149 } 1427 }
1150} 1428}
… …
1227cctx_destroy (coro_cctx *cctx) 1505cctx_destroy (coro_cctx *cctx)
1228{ 1506{
1229 if (!cctx) 1507 if (!cctx)
1230 return; 1508 return;
1231 1509
1510 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1511
1232 --cctx_count; 1512 --cctx_count;
1233 coro_destroy (&cctx->cctx); 1513 coro_destroy (&cctx->cctx);
1234 1514
1235 /* coro_transfer creates new, empty cctx's */ 1515 /* coro_transfer creates new, empty cctx's */
1236 if (cctx->sptr) 1516 if (cctx->sptr)
… …
1254#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1534#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1255 1535
1256static coro_cctx * 1536static coro_cctx *
1257cctx_get (pTHX) 1537cctx_get (pTHX)
1258{ 1538{
1259 while (expect_true (cctx_first)) 1539 while (ecb_expect_true (cctx_first))
1260 { 1540 {
1261 coro_cctx *cctx = cctx_first; 1541 coro_cctx *cctx = cctx_first;
1262 cctx_first = cctx->next; 1542 cctx_first = cctx->next;
1263 --cctx_idle; 1543 --cctx_idle;
1264 1544
1265 if (expect_true (!CCTX_EXPIRED (cctx))) 1545 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1266 return cctx; 1546 return cctx;
1267 1547
1268 cctx_destroy (cctx); 1548 cctx_destroy (cctx);
1269 } 1549 }
1270 1550
… …
1275cctx_put (coro_cctx *cctx) 1555cctx_put (coro_cctx *cctx)
1276{ 1556{
1277 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1557 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1278 1558
1279 /* free another cctx if overlimit */ 1559 /* free another cctx if overlimit */
1280 if (expect_false (cctx_idle >= cctx_max_idle)) 1560 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1281 { 1561 {
1282 coro_cctx *first = cctx_first; 1562 coro_cctx *first = cctx_first;
1283 cctx_first = first->next; 1563 cctx_first = first->next;
1284 --cctx_idle; 1564 --cctx_idle;
1285 1565
… …
1296static void 1576static void
1297transfer_check (pTHX_ struct coro *prev, struct coro *next) 1577transfer_check (pTHX_ struct coro *prev, struct coro *next)
1298{ 1578{
1299 /* TODO: throwing up here is considered harmful */ 1579 /* TODO: throwing up here is considered harmful */
1300 1580
1301 if (expect_true (prev != next)) 1581 if (ecb_expect_true (prev != next))
1302 { 1582 {
1303 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1583 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1304 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1584 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1305 1585
1306 if (expect_false (next->flags & CF_RUNNING)) 1586 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1307 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1308
1309 if (expect_false (next->flags & CF_DESTROYED))
1310 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1587 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1311 1588
1312#if !PERL_VERSION_ATLEAST (5,10,0) 1589#if !PERL_VERSION_ATLEAST (5,10,0)
1313 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1590 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1314 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1591 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1315#endif 1592#endif
1316 } 1593 }
1317} 1594}
1318 1595
1319/* always use the TRANSFER macro */ 1596/* always use the TRANSFER macro */
1320static void NOINLINE /* noinline so we have a fixed stackframe */ 1597static void ecb_noinline /* noinline so we have a fixed stackframe */
1321transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1598transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1322{ 1599{
1323 dSTACKLEVEL; 1600 dSTACKLEVEL;
1324 1601
1325 /* sometimes transfer is only called to set idle_sp */ 1602 /* sometimes transfer is only called to set idle_sp */
1326 if (expect_false (!next)) 1603 if (ecb_expect_false (!prev))
1327 { 1604 {
1328 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1605 cctx_current->idle_sp = STACKLEVEL;
1329 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1606 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1330 } 1607 }
1331 else if (expect_true (prev != next)) 1608 else if (ecb_expect_true (prev != next))
1332 { 1609 {
1333 coro_cctx *prev__cctx; 1610 coro_cctx *cctx_prev;
1334 1611
1335 if (expect_false (prev->flags & CF_NEW)) 1612 if (ecb_expect_false (prev->flags & CF_NEW))
1336 { 1613 {
1337 /* create a new empty/source context */ 1614 /* create a new empty/source context */
1338 prev->cctx = cctx_new_empty ();
1339 prev->flags &= ~CF_NEW; 1615 prev->flags &= ~CF_NEW;
1340 prev->flags |= CF_RUNNING; 1616 prev->flags |= CF_RUNNING;
1341 } 1617 }
1342 1618
1343 prev->flags &= ~CF_RUNNING; 1619 prev->flags &= ~CF_RUNNING;
1344 next->flags |= CF_RUNNING; 1620 next->flags |= CF_RUNNING;
1345 1621
1346 /* first get rid of the old state */ 1622 /* first get rid of the old state */
1347 save_perl (aTHX_ prev); 1623 save_perl (aTHX_ prev);
1348 1624
1349 if (expect_false (next->flags & CF_NEW)) 1625 if (ecb_expect_false (next->flags & CF_NEW))
1350 { 1626 {
1351 /* need to start coroutine */ 1627 /* need to start coroutine */
1352 next->flags &= ~CF_NEW; 1628 next->flags &= ~CF_NEW;
1353 /* setup coroutine call */ 1629 /* setup coroutine call */
1354 coro_setup (aTHX_ next); 1630 init_perl (aTHX_ next);
1355 } 1631 }
1356 else 1632 else
1357 load_perl (aTHX_ next); 1633 load_perl (aTHX_ next);
1358 1634
1359 prev__cctx = prev->cctx;
1360
1361 /* possibly untie and reuse the cctx */ 1635 /* possibly untie and reuse the cctx */
1362 if (expect_true ( 1636 if (ecb_expect_true (
1363 prev__cctx->idle_sp == STACKLEVEL 1637 cctx_current->idle_sp == STACKLEVEL
1364 && !(prev__cctx->flags & CC_TRACE) 1638 && !(cctx_current->flags & CC_TRACE)
1365 && !force_cctx 1639 && !force_cctx
1366 )) 1640 ))
1367 { 1641 {
1368 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1642 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1369 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1643 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1370 1644
1371 prev->cctx = 0;
1372
1373 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1645 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1374 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1646 /* without this the next cctx_get might destroy the running cctx while still in use */
1375 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1647 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1376 if (!next->cctx) 1648 if (ecb_expect_true (!next->cctx))
1377 next->cctx = cctx_get (aTHX); 1649 next->cctx = cctx_get (aTHX);
1378 1650
1379 cctx_put (prev__cctx); 1651 cctx_put (cctx_current);
1380 } 1652 }
1653 else
1654 prev->cctx = cctx_current;
1381 1655
1382 ++next->usecount; 1656 ++next->usecount;
1383 1657
1384 if (expect_true (!next->cctx)) 1658 cctx_prev = cctx_current;
1385 next->cctx = cctx_get (aTHX); 1659 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1386 1660
1387 if (expect_false (prev__cctx != next->cctx)) 1661 next->cctx = 0;
1662
1663 if (ecb_expect_false (cctx_prev != cctx_current))
1388 { 1664 {
1389 prev__cctx->top_env = PL_top_env; 1665 cctx_prev->top_env = PL_top_env;
1390 PL_top_env = next->cctx->top_env; 1666 PL_top_env = cctx_current->top_env;
1391 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1667 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1392 } 1668 }
1393 1669
1394 transfer_tail (aTHX); 1670 transfer_tail (aTHX);
1395 } 1671 }
1396} 1672}
… …
1398#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1674#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1399#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1675#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1400 1676
1401/** high level stuff ********************************************************/ 1677/** high level stuff ********************************************************/
1402 1678
1679/* this function is actually Coro, not Coro::State, but we call it from here */
1680/* because it is convenient - but it hasn't been declared yet for that reason */
1403static int 1681static void
1682coro_call_on_destroy (pTHX_ struct coro *coro);
1683
1684static void
1404coro_state_destroy (pTHX_ struct coro *coro) 1685coro_state_destroy (pTHX_ struct coro *coro)
1405{ 1686{
1406 if (coro->flags & CF_DESTROYED) 1687 if (coro->flags & CF_ZOMBIE)
1407 return 0; 1688 return;
1408 1689
1409 if (coro->on_destroy)
1410 coro->on_destroy (aTHX_ coro); 1690 slf_destroy (aTHX_ coro);
1411 1691
1412 coro->flags |= CF_DESTROYED; 1692 coro->flags |= CF_ZOMBIE;
1413 1693
1414 if (coro->flags & CF_READY) 1694 if (coro->flags & CF_READY)
1415 { 1695 {
1416 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1696 /* reduce nready, as destroying a ready coro effectively unreadies it */
1417 /* alternative: look through all ready queues and remove the coro */ 1697 /* alternative: look through all ready queues and remove the coro */
1418 --coro_nready; 1698 --coro_nready;
1419 } 1699 }
1420 else 1700 else
1421 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1701 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1422 1702
1423 if (coro->mainstack && coro->mainstack != main_mainstack)
1424 {
1425 struct coro temp;
1426
1427 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1428
1429 save_perl (aTHX_ &temp);
1430 load_perl (aTHX_ coro);
1431
1432 coro_destruct (aTHX_ coro);
1433
1434 load_perl (aTHX_ &temp);
1435
1436 coro->slot = 0;
1437 }
1438
1439 cctx_destroy (coro->cctx);
1440 SvREFCNT_dec (coro->args);
1441
1442 if (coro->next) coro->next->prev = coro->prev; 1703 if (coro->next) coro->next->prev = coro->prev;
1443 if (coro->prev) coro->prev->next = coro->next; 1704 if (coro->prev) coro->prev->next = coro->next;
1444 if (coro == coro_first) coro_first = coro->next; 1705 if (coro == coro_first) coro_first = coro->next;
1445 1706
1446 return 1; 1707 if (coro->mainstack
1708 && coro->mainstack != main_mainstack
1709 && coro->slot
1710 && !PL_dirty)
1711 destroy_perl (aTHX_ coro);
1712
1713 cctx_destroy (coro->cctx);
1714 SvREFCNT_dec (coro->startcv);
1715 SvREFCNT_dec (coro->args);
1716 SvREFCNT_dec (coro->swap_sv);
1717 SvREFCNT_dec (CORO_THROW);
1718
1719 coro_call_on_destroy (aTHX_ coro);
1720
1721 /* more destruction mayhem in coro_state_free */
1447} 1722}
1448 1723
1449static int 1724static int
1450coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1725coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1451{ 1726{
1452 struct coro *coro = (struct coro *)mg->mg_ptr; 1727 struct coro *coro = (struct coro *)mg->mg_ptr;
1453 mg->mg_ptr = 0; 1728 mg->mg_ptr = 0;
1454 1729
1455 coro->hv = 0;
1456
1457 if (--coro->refcnt < 0)
1458 {
1459 coro_state_destroy (aTHX_ coro); 1730 coro_state_destroy (aTHX_ coro);
1731 SvREFCNT_dec (coro->on_destroy);
1732 SvREFCNT_dec (coro->status);
1733
1460 Safefree (coro); 1734 Safefree (coro);
1461 }
1462 1735
1463 return 0; 1736 return 0;
1464} 1737}
1465 1738
1466static int 1739static int ecb_cold
1467coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1740coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1468{ 1741{
1469 struct coro *coro = (struct coro *)mg->mg_ptr; 1742 /* called when perl clones the current process the slow way (windows process emulation) */
1470 1743 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1471 ++coro->refcnt; 1744 mg->mg_ptr = 0;
1745 mg->mg_virtual = 0;
1472 1746
1473 return 0; 1747 return 0;
1474} 1748}
1475 1749
1476static MGVTBL coro_state_vtbl = { 1750static MGVTBL coro_state_vtbl = {
… …
1499 1773
1500 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1774 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1501 TRANSFER (ta, 1); 1775 TRANSFER (ta, 1);
1502} 1776}
1503 1777
1504/*****************************************************************************/
1505/* gensub: simple closure generation utility */
1506
1507#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1508
1509/* create a closure from XS, returns a code reference */
1510/* the arg can be accessed via GENSUB_ARG from the callback */
1511/* the callback must use dXSARGS/XSRETURN */
1512static SV *
1513gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1514{
1515 CV *cv = (CV *)newSV (0);
1516
1517 sv_upgrade ((SV *)cv, SVt_PVCV);
1518
1519 CvANON_on (cv);
1520 CvISXSUB_on (cv);
1521 CvXSUB (cv) = xsub;
1522 GENSUB_ARG = arg;
1523
1524 return newRV_noinc ((SV *)cv);
1525}
1526
1527/** Coro ********************************************************************/ 1778/** Coro ********************************************************************/
1528 1779
1529INLINE void 1780ECB_INLINE void
1530coro_enq (pTHX_ struct coro *coro) 1781coro_enq (pTHX_ struct coro *coro)
1531{ 1782{
1532 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1783 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1533}
1534 1784
1535INLINE SV * 1785 SvREFCNT_inc_NN (coro->hv);
1786
1787 coro->next_ready = 0;
1788 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1789 ready [1] = coro;
1790}
1791
1792ECB_INLINE struct coro *
1536coro_deq (pTHX) 1793coro_deq (pTHX)
1537{ 1794{
1538 int prio; 1795 int prio;
1539 1796
1540 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1797 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1541 if (AvFILLp (coro_ready [prio]) >= 0) 1798 {
1542 return av_shift (coro_ready [prio]); 1799 struct coro **ready = coro_ready [prio];
1800
1801 if (ready [0])
1802 {
1803 struct coro *coro = ready [0];
1804 ready [0] = coro->next_ready;
1805 return coro;
1806 }
1807 }
1543 1808
1544 return 0; 1809 return 0;
1810}
1811
1812static void
1813invoke_sv_ready_hook_helper (void)
1814{
1815 dTHX;
1816 dSP;
1817
1818 ENTER;
1819 SAVETMPS;
1820
1821 PUSHMARK (SP);
1822 PUTBACK;
1823 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1824
1825 FREETMPS;
1826 LEAVE;
1545} 1827}
1546 1828
1547static int 1829static int
1548api_ready (pTHX_ SV *coro_sv) 1830api_ready (pTHX_ SV *coro_sv)
1549{ 1831{
1550 struct coro *coro;
1551 SV *sv_hook;
1552 void (*xs_hook)(void);
1553
1554 if (SvROK (coro_sv))
1555 coro_sv = SvRV (coro_sv);
1556
1557 coro = SvSTATE (coro_sv); 1832 struct coro *coro = SvSTATE (coro_sv);
1558 1833
1559 if (coro->flags & CF_READY) 1834 if (coro->flags & CF_READY)
1560 return 0; 1835 return 0;
1561 1836
1562 coro->flags |= CF_READY; 1837 coro->flags |= CF_READY;
1563 1838
1564 sv_hook = coro_nready ? 0 : coro_readyhook;
1565 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1566
1567 coro_enq (aTHX_ coro); 1839 coro_enq (aTHX_ coro);
1568 ++coro_nready;
1569 1840
1570 if (sv_hook) 1841 if (!coro_nready++)
1571 { 1842 if (coroapi.readyhook)
1572 dSP; 1843 coroapi.readyhook ();
1573
1574 ENTER;
1575 SAVETMPS;
1576
1577 PUSHMARK (SP);
1578 PUTBACK;
1579 call_sv (sv_hook, G_VOID | G_DISCARD);
1580
1581 FREETMPS;
1582 LEAVE;
1583 }
1584
1585 if (xs_hook)
1586 xs_hook ();
1587 1844
1588 return 1; 1845 return 1;
1589} 1846}
1590 1847
1591static int 1848static int
1592api_is_ready (pTHX_ SV *coro_sv) 1849api_is_ready (pTHX_ SV *coro_sv)
1593{ 1850{
1594 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1851 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1595} 1852}
1596 1853
1854/* expects to own a reference to next->hv */
1597INLINE void 1855ECB_INLINE void
1598prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1856prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1599{ 1857{
1600 SV *prev_sv, *next_sv;
1601
1602 for (;;)
1603 {
1604 next_sv = coro_deq (aTHX);
1605
1606 /* nothing to schedule: call the idle handler */
1607 if (expect_false (!next_sv))
1608 {
1609 dSP;
1610
1611 ENTER;
1612 SAVETMPS;
1613
1614 PUSHMARK (SP);
1615 PUTBACK;
1616 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1617
1618 FREETMPS;
1619 LEAVE;
1620 continue;
1621 }
1622
1623 ta->next = SvSTATE_hv (next_sv);
1624
1625 /* cannot transfer to destroyed coros, skip and look for next */
1626 if (expect_false (ta->next->flags & CF_DESTROYED))
1627 {
1628 SvREFCNT_dec (next_sv);
1629 /* coro_nready has already been taken care of by destroy */
1630 continue;
1631 }
1632
1633 --coro_nready;
1634 break;
1635 }
1636
1637 /* free this only after the transfer */
1638 prev_sv = SvRV (coro_current); 1858 SV *prev_sv = SvRV (coro_current);
1859
1639 ta->prev = SvSTATE_hv (prev_sv); 1860 ta->prev = SvSTATE_hv (prev_sv);
1861 ta->next = next;
1862
1640 TRANSFER_CHECK (*ta); 1863 TRANSFER_CHECK (*ta);
1641 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1864
1642 ta->next->flags &= ~CF_READY;
1643 SvRV_set (coro_current, next_sv); 1865 SvRV_set (coro_current, (SV *)next->hv);
1644 1866
1645 free_coro_mortal (aTHX); 1867 free_coro_mortal (aTHX);
1646 coro_mortal = prev_sv; 1868 coro_mortal = prev_sv;
1647} 1869}
1648 1870
1871static void
1872prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1873{
1874 for (;;)
1875 {
1876 struct coro *next = coro_deq (aTHX);
1877
1878 if (ecb_expect_true (next))
1879 {
1880 /* cannot transfer to destroyed coros, skip and look for next */
1881 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1882 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1883 else
1884 {
1885 next->flags &= ~CF_READY;
1886 --coro_nready;
1887
1888 prepare_schedule_to (aTHX_ ta, next);
1889 break;
1890 }
1891 }
1892 else
1893 {
1894 /* nothing to schedule: call the idle handler */
1895 if (SvROK (sv_idle)
1896 && SvOBJECT (SvRV (sv_idle)))
1897 {
1898 if (SvRV (sv_idle) == SvRV (coro_current))
1899 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1900
1901 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1902 api_ready (aTHX_ SvRV (sv_idle));
1903 --coro_nready;
1904 }
1905 else
1906 {
1907 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1908 dSP;
1909
1910 ENTER;
1911 SAVETMPS;
1912
1913 PUSHMARK (SP);
1914 PUTBACK;
1915 call_sv (sv_idle, G_VOID | G_DISCARD);
1916
1917 FREETMPS;
1918 LEAVE;
1919 }
1920 }
1921 }
1922}
1923
1649INLINE void 1924ECB_INLINE void
1650prepare_cede (pTHX_ struct coro_transfer_args *ta) 1925prepare_cede (pTHX_ struct coro_transfer_args *ta)
1651{ 1926{
1652 api_ready (aTHX_ coro_current); 1927 api_ready (aTHX_ coro_current);
1653 prepare_schedule (aTHX_ ta); 1928 prepare_schedule (aTHX_ ta);
1654} 1929}
1655 1930
1656INLINE void 1931ECB_INLINE void
1657prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1932prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1658{ 1933{
1659 SV *prev = SvRV (coro_current); 1934 SV *prev = SvRV (coro_current);
1660 1935
1661 if (coro_nready) 1936 if (coro_nready)
… …
1674 1949
1675 prepare_schedule (aTHX_ &ta); 1950 prepare_schedule (aTHX_ &ta);
1676 TRANSFER (ta, 1); 1951 TRANSFER (ta, 1);
1677} 1952}
1678 1953
1954static void
1955api_schedule_to (pTHX_ SV *coro_sv)
1956{
1957 struct coro_transfer_args ta;
1958 struct coro *next = SvSTATE (coro_sv);
1959
1960 SvREFCNT_inc_NN (coro_sv);
1961 prepare_schedule_to (aTHX_ &ta, next);
1962}
1963
1679static int 1964static int
1680api_cede (pTHX) 1965api_cede (pTHX)
1681{ 1966{
1682 struct coro_transfer_args ta; 1967 struct coro_transfer_args ta;
1683 1968
1684 prepare_cede (aTHX_ &ta); 1969 prepare_cede (aTHX_ &ta);
1685 1970
1686 if (expect_true (ta.prev != ta.next)) 1971 if (ecb_expect_true (ta.prev != ta.next))
1687 { 1972 {
1688 TRANSFER (ta, 1); 1973 TRANSFER (ta, 1);
1689 return 1; 1974 return 1;
1690 } 1975 }
1691 else 1976 else
… …
1710static void 1995static void
1711api_trace (pTHX_ SV *coro_sv, int flags) 1996api_trace (pTHX_ SV *coro_sv, int flags)
1712{ 1997{
1713 struct coro *coro = SvSTATE (coro_sv); 1998 struct coro *coro = SvSTATE (coro_sv);
1714 1999
2000 if (coro->flags & CF_RUNNING)
2001 croak ("cannot enable tracing on a running coroutine, caught");
2002
1715 if (flags & CC_TRACE) 2003 if (flags & CC_TRACE)
1716 { 2004 {
1717 if (!coro->cctx) 2005 if (!coro->cctx)
1718 coro->cctx = cctx_new_run (); 2006 coro->cctx = cctx_new_run ();
1719 else if (!(coro->cctx->flags & CC_TRACE)) 2007 else if (!(coro->cctx->flags & CC_TRACE))
1720 croak ("cannot enable tracing on coroutine with custom stack,"); 2008 croak ("cannot enable tracing on coroutine with custom stack, caught");
1721 2009
1722 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2010 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1723 } 2011 }
1724 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2012 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1725 { 2013 {
… …
1730 else 2018 else
1731 coro->slot->runops = RUNOPS_DEFAULT; 2019 coro->slot->runops = RUNOPS_DEFAULT;
1732 } 2020 }
1733} 2021}
1734 2022
2023static void
2024coro_push_av (pTHX_ AV *av, I32 gimme_v)
2025{
2026 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2027 {
2028 dSP;
2029
2030 if (gimme_v == G_SCALAR)
2031 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2032 else
2033 {
2034 int i;
2035 EXTEND (SP, AvFILLp (av) + 1);
2036
2037 for (i = 0; i <= AvFILLp (av); ++i)
2038 PUSHs (AvARRAY (av)[i]);
2039 }
2040
2041 PUTBACK;
2042 }
2043}
2044
2045static void
2046coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2047{
2048 if (!coro->on_destroy)
2049 coro->on_destroy = newAV ();
2050
2051 av_push (coro->on_destroy, cb);
2052}
2053
2054static void
2055slf_destroy_join (pTHX_ struct CoroSLF *frame)
2056{
2057 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2058}
2059
2060static int
2061slf_check_join (pTHX_ struct CoroSLF *frame)
2062{
2063 struct coro *coro = (struct coro *)frame->data;
2064
2065 if (!coro->status)
2066 return 1;
2067
2068 frame->destroy = 0;
2069
2070 coro_push_av (aTHX_ coro->status, GIMME_V);
2071
2072 SvREFCNT_dec ((SV *)coro->hv);
2073
2074 return 0;
2075}
2076
2077static void
2078slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2079{
2080 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2081
2082 if (items > 1)
2083 croak ("join called with too many arguments");
2084
2085 if (coro->status)
2086 frame->prepare = prepare_nop;
2087 else
2088 {
2089 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2090 frame->prepare = prepare_schedule;
2091 }
2092
2093 frame->check = slf_check_join;
2094 frame->destroy = slf_destroy_join;
2095 frame->data = (void *)coro;
2096 SvREFCNT_inc (coro->hv);
2097}
2098
2099static void
2100coro_call_on_destroy (pTHX_ struct coro *coro)
2101{
2102 AV *od = coro->on_destroy;
2103
2104 if (!od)
2105 return;
2106
2107 while (AvFILLp (od) >= 0)
2108 {
2109 SV *cb = sv_2mortal (av_pop (od));
2110
2111 /* coro hv's (and only hv's at the moment) are supported as well */
2112 if (SvSTATEhv_p (aTHX_ cb))
2113 api_ready (aTHX_ cb);
2114 else
2115 {
2116 dSP; /* don't disturb outer sp */
2117 PUSHMARK (SP);
2118
2119 if (coro->status)
2120 {
2121 PUTBACK;
2122 coro_push_av (aTHX_ coro->status, G_ARRAY);
2123 SPAGAIN;
2124 }
2125
2126 PUTBACK;
2127 call_sv (cb, G_VOID | G_DISCARD);
2128 }
2129 }
2130}
2131
2132static void
2133coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2134{
2135 AV *av;
2136
2137 if (coro->status)
2138 {
2139 av = coro->status;
2140 av_clear (av);
2141 }
2142 else
2143 av = coro->status = newAV ();
2144
2145 /* items are actually not so common, so optimise for this case */
2146 if (items)
2147 {
2148 int i;
2149
2150 av_extend (av, items - 1);
2151
2152 for (i = 0; i < items; ++i)
2153 av_push (av, SvREFCNT_inc_NN (arg [i]));
2154 }
2155}
2156
2157static void
2158slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2159{
2160 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2161 api_ready (aTHX_ sv_manager);
2162
2163 frame->prepare = prepare_schedule;
2164 frame->check = slf_check_repeat;
2165
2166 /* as a minor optimisation, we could unwind all stacks here */
2167 /* but that puts extra pressure on pp_slf, and is not worth much */
2168 /*coro_unwind_stacks (aTHX);*/
2169}
2170
2171static void
2172slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2173{
2174 HV *coro_hv = (HV *)SvRV (coro_current);
2175
2176 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2177 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2178}
2179
2180static void
2181slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2182{
2183 HV *coro_hv;
2184 struct coro *coro;
2185
2186 if (items <= 0)
2187 croak ("Coro::cancel called without coro object,");
2188
2189 coro = SvSTATE (arg [0]);
2190 coro_hv = coro->hv;
2191
2192 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2193
2194 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2195 {
2196 /* coro currently busy cancelling something, so just notify it */
2197 coro->slf_frame.data = (void *)coro;
2198
2199 frame->prepare = prepare_nop;
2200 frame->check = slf_check_nop;
2201 }
2202 else if (coro_hv == (HV *)SvRV (coro_current))
2203 {
2204 /* cancelling the current coro is allowed, and equals terminate */
2205 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2206 }
2207 else
2208 {
2209 struct coro *self = SvSTATE_current;
2210
2211 /* otherwise we cancel directly, purely for speed reasons
2212 * unfortunately, this requires some magic trickery, as
2213 * somebody else could cancel us, so we have to fight the cancellation.
2214 * this is ugly, and hopefully fully worth the extra speed.
2215 * besides, I can't get the slow-but-safe version working...
2216 */
2217 slf_frame.data = 0;
2218 self->flags |= CF_NOCANCEL;
2219 coro_state_destroy (aTHX_ coro);
2220 self->flags &= ~CF_NOCANCEL;
2221
2222 if (slf_frame.data)
2223 {
2224 /* while we were busy we have been cancelled, so terminate */
2225 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2226 }
2227 else
2228 {
2229 frame->prepare = prepare_nop;
2230 frame->check = slf_check_nop;
2231 }
2232 }
2233}
2234
2235static int
2236slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2237{
2238 frame->prepare = 0;
2239 coro_unwind_stacks (aTHX);
2240
2241 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2242
2243 return 1;
2244}
2245
2246static int
2247safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2248{
2249 if (coro->cctx)
2250 croak ("coro inside C callback, unable to cancel at this time, caught");
2251
2252 if (coro->flags & CF_NEW)
2253 {
2254 coro_set_status (aTHX_ coro, arg, items);
2255 coro_state_destroy (aTHX_ coro);
2256 }
2257 else
2258 {
2259 if (!coro->slf_frame.prepare)
2260 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2261
2262 slf_destroy (aTHX_ coro);
2263
2264 coro_set_status (aTHX_ coro, arg, items);
2265 coro->slf_frame.prepare = prepare_nop;
2266 coro->slf_frame.check = slf_check_safe_cancel;
2267
2268 api_ready (aTHX_ (SV *)coro->hv);
2269 }
2270
2271 return 1;
2272}
2273
2274/*****************************************************************************/
2275/* async pool handler */
2276
2277static int
2278slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2279{
2280 HV *hv = (HV *)SvRV (coro_current);
2281 struct coro *coro = (struct coro *)frame->data;
2282
2283 if (!coro->invoke_cb)
2284 return 1; /* loop till we have invoke */
2285 else
2286 {
2287 hv_store (hv, "desc", sizeof ("desc") - 1,
2288 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2289
2290 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2291
2292 {
2293 dSP;
2294 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2295 PUTBACK;
2296 }
2297
2298 SvREFCNT_dec (GvAV (PL_defgv));
2299 GvAV (PL_defgv) = coro->invoke_av;
2300 coro->invoke_av = 0;
2301
2302 return 0;
2303 }
2304}
2305
2306static void
2307slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2308{
2309 HV *hv = (HV *)SvRV (coro_current);
2310 struct coro *coro = SvSTATE_hv ((SV *)hv);
2311
2312 if (ecb_expect_true (coro->saved_deffh))
2313 {
2314 /* subsequent iteration */
2315 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2316 coro->saved_deffh = 0;
2317
2318 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2319 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2320 {
2321 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2322 return;
2323 }
2324 else
2325 {
2326 av_clear (GvAV (PL_defgv));
2327 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2328
2329 coro->prio = 0;
2330
2331 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2332 api_trace (aTHX_ coro_current, 0);
2333
2334 frame->prepare = prepare_schedule;
2335 av_push (av_async_pool, SvREFCNT_inc (hv));
2336 }
2337 }
2338 else
2339 {
2340 /* first iteration, simply fall through */
2341 frame->prepare = prepare_nop;
2342 }
2343
2344 frame->check = slf_check_pool_handler;
2345 frame->data = (void *)coro;
2346}
2347
1735/*****************************************************************************/ 2348/*****************************************************************************/
1736/* rouse callback */ 2349/* rouse callback */
1737 2350
1738#define CORO_MAGIC_type_rouse PERL_MAGIC_ext 2351#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1739 2352
1740static void 2353static void
1741coro_rouse_callback (pTHX_ CV *cv) 2354coro_rouse_callback (pTHX_ CV *cv)
1742{ 2355{
1743 dXSARGS; 2356 dXSARGS;
1744 SV *data = (SV *)GENSUB_ARG; 2357 SV *data = (SV *)S_GENSUB_ARG;
1745 2358
1746 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2359 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1747 { 2360 {
1748 /* first call, set args */ 2361 /* first call, set args */
1749 int i; 2362 SV *coro = SvRV (data);
1750 AV *av = newAV (); 2363 AV *av = newAV ();
1751 SV *coro = SvRV (data);
1752 2364
1753 SvRV_set (data, (SV *)av); 2365 SvRV_set (data, (SV *)av);
1754 api_ready (aTHX_ coro);
1755 SvREFCNT_dec (coro);
1756 2366
1757 /* better take a full copy of the arguments */ 2367 /* better take a full copy of the arguments */
1758 while (items--) 2368 while (items--)
1759 av_store (av, items, newSVsv (ST (items))); 2369 av_store (av, items, newSVsv (ST (items)));
2370
2371 api_ready (aTHX_ coro);
2372 SvREFCNT_dec (coro);
1760 } 2373 }
1761 2374
1762 XSRETURN_EMPTY; 2375 XSRETURN_EMPTY;
1763} 2376}
1764 2377
… …
1781 2394
1782 EXTEND (SP, AvFILLp (av) + 1); 2395 EXTEND (SP, AvFILLp (av) + 1);
1783 for (i = 0; i <= AvFILLp (av); ++i) 2396 for (i = 0; i <= AvFILLp (av); ++i)
1784 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2397 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1785 2398
1786 /* we have stolen the elements, so ste length to zero and free */ 2399 /* we have stolen the elements, so set length to zero and free */
1787 AvFILLp (av) = -1; 2400 AvFILLp (av) = -1;
1788 av_undef (av); 2401 av_undef (av);
1789 2402
1790 PUTBACK; 2403 PUTBACK;
1791 } 2404 }
… …
1815 || SvTYPE (SvRV (cb)) != SVt_PVCV 2428 || SvTYPE (SvRV (cb)) != SVt_PVCV
1816 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2429 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1817 croak ("Coro::rouse_wait called with illegal callback argument,"); 2430 croak ("Coro::rouse_wait called with illegal callback argument,");
1818 2431
1819 { 2432 {
1820 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2433 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1821 SV *data = (SV *)GENSUB_ARG; 2434 SV *data = (SV *)S_GENSUB_ARG;
1822 2435
1823 frame->data = (void *)data; 2436 frame->data = (void *)data;
1824 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2437 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1825 frame->check = slf_check_rouse_wait; 2438 frame->check = slf_check_rouse_wait;
1826 } 2439 }
… …
1830coro_new_rouse_cb (pTHX) 2443coro_new_rouse_cb (pTHX)
1831{ 2444{
1832 HV *hv = (HV *)SvRV (coro_current); 2445 HV *hv = (HV *)SvRV (coro_current);
1833 struct coro *coro = SvSTATE_hv (hv); 2446 struct coro *coro = SvSTATE_hv (hv);
1834 SV *data = newRV_inc ((SV *)hv); 2447 SV *data = newRV_inc ((SV *)hv);
1835 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2448 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1836 2449
1837 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2450 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1838 SvREFCNT_dec (data); /* magicext increases the refcount */ 2451 SvREFCNT_dec (data); /* magicext increases the refcount */
1839 2452
1840 SvREFCNT_dec (coro->rouse_cb); 2453 SvREFCNT_dec (coro->rouse_cb);
… …
1898 frame->prepare = prepare_schedule; 2511 frame->prepare = prepare_schedule;
1899 frame->check = slf_check_nop; 2512 frame->check = slf_check_nop;
1900} 2513}
1901 2514
1902static void 2515static void
2516slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2517{
2518 struct coro *next = (struct coro *)slf_frame.data;
2519
2520 SvREFCNT_inc_NN (next->hv);
2521 prepare_schedule_to (aTHX_ ta, next);
2522}
2523
2524static void
2525slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2526{
2527 if (!items)
2528 croak ("Coro::schedule_to expects a coroutine argument, caught");
2529
2530 frame->data = (void *)SvSTATE (arg [0]);
2531 frame->prepare = slf_prepare_schedule_to;
2532 frame->check = slf_check_nop;
2533}
2534
2535static void
2536slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2537{
2538 api_ready (aTHX_ SvRV (coro_current));
2539
2540 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2541}
2542
2543static void
1903slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2544slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1904{ 2545{
1905 frame->prepare = prepare_cede; 2546 frame->prepare = prepare_cede;
1906 frame->check = slf_check_nop; 2547 frame->check = slf_check_nop;
1907} 2548}
… …
1909static void 2550static void
1910slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2551slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1911{ 2552{
1912 frame->prepare = prepare_cede_notself; 2553 frame->prepare = prepare_cede_notself;
1913 frame->check = slf_check_nop; 2554 frame->check = slf_check_nop;
2555}
2556
2557/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2558static void
2559slf_destroy (pTHX_ struct coro *coro)
2560{
2561 /* this callback is reserved for slf functions needing to do cleanup */
2562 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2563 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2564
2565 /*
2566 * The on_destroy above most likely is from an SLF call.
2567 * Since by definition the SLF call will not finish when we destroy
2568 * the coro, we will have to force-finish it here, otherwise
2569 * cleanup functions cannot call SLF functions.
2570 */
2571 coro->slf_frame.prepare = 0;
1914} 2572}
1915 2573
1916/* 2574/*
1917 * these not obviously related functions are all rolled into one 2575 * these not obviously related functions are all rolled into one
1918 * function to increase chances that they all will call transfer with the same 2576 * function to increase chances that they all will call transfer with the same
… …
1925 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2583 I32 checkmark; /* mark SP to see how many elements check has pushed */
1926 2584
1927 /* set up the slf frame, unless it has already been set-up */ 2585 /* set up the slf frame, unless it has already been set-up */
1928 /* the latter happens when a new coro has been started */ 2586 /* the latter happens when a new coro has been started */
1929 /* or when a new cctx was attached to an existing coroutine */ 2587 /* or when a new cctx was attached to an existing coroutine */
1930 if (expect_true (!slf_frame.prepare)) 2588 if (ecb_expect_true (!slf_frame.prepare))
1931 { 2589 {
1932 /* first iteration */ 2590 /* first iteration */
1933 dSP; 2591 dSP;
1934 SV **arg = PL_stack_base + TOPMARK + 1; 2592 SV **arg = PL_stack_base + TOPMARK + 1;
1935 int items = SP - arg; /* args without function object */ 2593 int items = SP - arg; /* args without function object */
… …
1976 while (slf_frame.check (aTHX_ &slf_frame)); 2634 while (slf_frame.check (aTHX_ &slf_frame));
1977 2635
1978 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2636 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1979 2637
1980 /* exception handling */ 2638 /* exception handling */
1981 if (expect_false (CORO_THROW)) 2639 if (ecb_expect_false (CORO_THROW))
1982 { 2640 {
1983 SV *exception = sv_2mortal (CORO_THROW); 2641 SV *exception = sv_2mortal (CORO_THROW);
1984 2642
1985 CORO_THROW = 0; 2643 CORO_THROW = 0;
1986 sv_setsv (ERRSV, exception); 2644 sv_setsv (ERRSV, exception);
1987 croak (0); 2645 croak (0);
1988 } 2646 }
1989 2647
1990 /* return value handling - mostly like entersub */ 2648 /* return value handling - mostly like entersub */
1991 /* make sure we put something on the stack in scalar context */ 2649 /* make sure we put something on the stack in scalar context */
1992 if (GIMME_V == G_SCALAR) 2650 if (GIMME_V == G_SCALAR
2651 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
1993 { 2652 {
1994 dSP; 2653 dSP;
1995 SV **bot = PL_stack_base + checkmark; 2654 SV **bot = PL_stack_base + checkmark;
1996 2655
1997 if (sp == bot) /* too few, push undef */ 2656 if (sp == bot) /* too few, push undef */
1998 bot [1] = &PL_sv_undef; 2657 bot [1] = &PL_sv_undef;
1999 else if (sp != bot + 1) /* too many, take last one */ 2658 else /* too many, take last one */
2000 bot [1] = *sp; 2659 bot [1] = *sp;
2001 2660
2002 SP = bot + 1; 2661 SP = bot + 1;
2003 2662
2004 PUTBACK; 2663 PUTBACK;
… …
2037 if (PL_op->op_flags & OPf_STACKED) 2696 if (PL_op->op_flags & OPf_STACKED)
2038 { 2697 {
2039 if (items > slf_arga) 2698 if (items > slf_arga)
2040 { 2699 {
2041 slf_arga = items; 2700 slf_arga = items;
2042 free (slf_argv); 2701 Safefree (slf_argv);
2043 slf_argv = malloc (slf_arga * sizeof (SV *)); 2702 New (0, slf_argv, slf_arga, SV *);
2044 } 2703 }
2045 2704
2046 slf_argc = items; 2705 slf_argc = items;
2047 2706
2048 for (i = 0; i < items; ++i) 2707 for (i = 0; i < items; ++i)
… …
2050 } 2709 }
2051 else 2710 else
2052 slf_argc = 0; 2711 slf_argc = 0;
2053 2712
2054 PL_op->op_ppaddr = pp_slf; 2713 PL_op->op_ppaddr = pp_slf;
2055 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2714 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2056 2715
2057 PL_op = (OP *)&slf_restore; 2716 PL_op = (OP *)&slf_restore;
2717}
2718
2719/*****************************************************************************/
2720/* dynamic wind */
2721
2722static void
2723on_enterleave_call (pTHX_ SV *cb)
2724{
2725 dSP;
2726
2727 PUSHSTACK;
2728
2729 PUSHMARK (SP);
2730 PUTBACK;
2731 call_sv (cb, G_VOID | G_DISCARD);
2732 SPAGAIN;
2733
2734 POPSTACK;
2735}
2736
2737static SV *
2738coro_avp_pop_and_free (pTHX_ AV **avp)
2739{
2740 AV *av = *avp;
2741 SV *res = av_pop (av);
2742
2743 if (AvFILLp (av) < 0)
2744 {
2745 *avp = 0;
2746 SvREFCNT_dec (av);
2747 }
2748
2749 return res;
2750}
2751
2752static void
2753coro_pop_on_enter (pTHX_ void *coro)
2754{
2755 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2756 SvREFCNT_dec (cb);
2757}
2758
2759static void
2760coro_pop_on_leave (pTHX_ void *coro)
2761{
2762 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2763 on_enterleave_call (aTHX_ sv_2mortal (cb));
2058} 2764}
2059 2765
2060/*****************************************************************************/ 2766/*****************************************************************************/
2061/* PerlIO::cede */ 2767/* PerlIO::cede */
2062 2768
… …
2064{ 2770{
2065 PerlIOBuf base; 2771 PerlIOBuf base;
2066 NV next, every; 2772 NV next, every;
2067} PerlIOCede; 2773} PerlIOCede;
2068 2774
2069static IV 2775static IV ecb_cold
2070PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2776PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2071{ 2777{
2072 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2778 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2073 2779
2074 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2780 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2075 self->next = nvtime () + self->every; 2781 self->next = nvtime () + self->every;
2076 2782
2077 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2783 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2078} 2784}
2079 2785
2080static SV * 2786static SV * ecb_cold
2081PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2787PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2082{ 2788{
2083 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2789 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2084 2790
2085 return newSVnv (self->every); 2791 return newSVnv (self->every);
… …
2136/* Coro::Semaphore & Coro::Signal */ 2842/* Coro::Semaphore & Coro::Signal */
2137 2843
2138static SV * 2844static SV *
2139coro_waitarray_new (pTHX_ int count) 2845coro_waitarray_new (pTHX_ int count)
2140{ 2846{
2141 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2847 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2142 AV *av = newAV (); 2848 AV *av = newAV ();
2143 SV **ary; 2849 SV **ary;
2144 2850
2145 /* unfortunately, building manually saves memory */ 2851 /* unfortunately, building manually saves memory */
2146 Newx (ary, 2, SV *); 2852 Newx (ary, 2, SV *);
2147 AvALLOC (av) = ary; 2853 AvALLOC (av) = ary;
2854#if PERL_VERSION_ATLEAST (5,10,0)
2148 /*AvARRAY (av) = ary;*/ 2855 AvARRAY (av) = ary;
2856#else
2149 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2857 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2858 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2859 SvPVX ((SV *)av) = (char *)ary;
2860#endif
2150 AvMAX (av) = 1; 2861 AvMAX (av) = 1;
2151 AvFILLp (av) = 0; 2862 AvFILLp (av) = 0;
2152 ary [0] = newSViv (count); 2863 ary [0] = newSViv (count);
2153 2864
2154 return newRV_noinc ((SV *)av); 2865 return newRV_noinc ((SV *)av);
… …
2192 SvREFCNT_dec (cb); 2903 SvREFCNT_dec (cb);
2193 } 2904 }
2194} 2905}
2195 2906
2196static void 2907static void
2197coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2908coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2198{ 2909{
2199 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2910 /* call $sem->adjust (0) to possibly wake up some other waiters */
2200 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2911 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2201} 2912}
2202 2913
2203static int 2914static int
2204slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2915slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2205{ 2916{
2206 AV *av = (AV *)frame->data; 2917 AV *av = (AV *)frame->data;
2207 SV *count_sv = AvARRAY (av)[0]; 2918 SV *count_sv = AvARRAY (av)[0];
2919 SV *coro_hv = SvRV (coro_current);
2208 2920
2209 /* if we are about to throw, don't actually acquire the lock, just throw */ 2921 /* if we are about to throw, don't actually acquire the lock, just throw */
2210 if (CORO_THROW) 2922 if (CORO_THROW)
2211 return 0; 2923 return 0;
2212 else if (SvIVX (count_sv) > 0) 2924 else if (SvIVX (count_sv) > 0)
2213 { 2925 {
2214 SvSTATE_current->on_destroy = 0; 2926 frame->destroy = 0;
2215 2927
2216 if (acquire) 2928 if (acquire)
2217 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2929 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2218 else 2930 else
2219 coro_semaphore_adjust (aTHX_ av, 0); 2931 coro_semaphore_adjust (aTHX_ av, 0);
… …
2224 { 2936 {
2225 int i; 2937 int i;
2226 /* if we were woken up but can't down, we look through the whole */ 2938 /* if we were woken up but can't down, we look through the whole */
2227 /* waiters list and only add us if we aren't in there already */ 2939 /* waiters list and only add us if we aren't in there already */
2228 /* this avoids some degenerate memory usage cases */ 2940 /* this avoids some degenerate memory usage cases */
2229 2941 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2230 for (i = 1; i <= AvFILLp (av); ++i)
2231 if (AvARRAY (av)[i] == SvRV (coro_current)) 2942 if (AvARRAY (av)[i] == coro_hv)
2232 return 1; 2943 return 1;
2233 2944
2234 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2945 av_push (av, SvREFCNT_inc (coro_hv));
2235 return 1; 2946 return 1;
2236 } 2947 }
2237} 2948}
2238 2949
2239static int 2950static int
… …
2262 { 2973 {
2263 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2974 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2264 2975
2265 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2976 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2266 frame->prepare = prepare_schedule; 2977 frame->prepare = prepare_schedule;
2267
2268 /* to avoid race conditions when a woken-up coro gets terminated */ 2978 /* to avoid race conditions when a woken-up coro gets terminated */
2269 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2979 /* we arrange for a temporary on_destroy that calls adjust (0) */
2270 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2980 frame->destroy = coro_semaphore_destroy;
2271 } 2981 }
2272} 2982}
2273 2983
2274static void 2984static void
2275slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2985slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2283{ 2993{
2284 if (items >= 2) 2994 if (items >= 2)
2285 { 2995 {
2286 /* callback form */ 2996 /* callback form */
2287 AV *av = (AV *)SvRV (arg [0]); 2997 AV *av = (AV *)SvRV (arg [0]);
2288 HV *st; 2998 SV *cb_cv = s_get_cv_croak (arg [1]);
2289 GV *gvp;
2290 CV *cb_cv = sv_2cv (arg [1], &st, &gvp, 0);
2291 2999
2292 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3000 av_push (av, SvREFCNT_inc_NN (cb_cv));
2293 3001
2294 if (SvIVX (AvARRAY (av)[0]) > 0) 3002 if (SvIVX (AvARRAY (av)[0]) > 0)
2295 coro_semaphore_adjust (aTHX_ av, 0); 3003 coro_semaphore_adjust (aTHX_ av, 0);
2296 3004
2297 frame->prepare = prepare_nop; 3005 frame->prepare = prepare_nop;
… …
2321 AvARRAY (av)[0] = AvARRAY (av)[1]; 3029 AvARRAY (av)[0] = AvARRAY (av)[1];
2322 AvARRAY (av)[1] = cb; 3030 AvARRAY (av)[1] = cb;
2323 3031
2324 cb = av_shift (av); 3032 cb = av_shift (av);
2325 3033
3034 if (SvTYPE (cb) == SVt_PVCV)
3035 {
3036 dSP;
3037 PUSHMARK (SP);
3038 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3039 PUTBACK;
3040 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3041 }
3042 else
3043 {
2326 api_ready (aTHX_ cb); 3044 api_ready (aTHX_ cb);
2327 sv_setiv (cb, 0); /* signal waiter */ 3045 sv_setiv (cb, 0); /* signal waiter */
3046 }
3047
2328 SvREFCNT_dec (cb); 3048 SvREFCNT_dec (cb);
2329 3049
2330 --count; 3050 --count;
2331 } 3051 }
2332} 3052}
… …
2341static void 3061static void
2342slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3062slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2343{ 3063{
2344 AV *av = (AV *)SvRV (arg [0]); 3064 AV *av = (AV *)SvRV (arg [0]);
2345 3065
3066 if (items >= 2)
3067 {
3068 SV *cb_cv = s_get_cv_croak (arg [1]);
3069 av_push (av, SvREFCNT_inc_NN (cb_cv));
3070
2346 if (SvIVX (AvARRAY (av)[0])) 3071 if (SvIVX (AvARRAY (av)[0]))
3072 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3073
3074 frame->prepare = prepare_nop;
3075 frame->check = slf_check_nop;
3076 }
3077 else if (SvIVX (AvARRAY (av)[0]))
2347 { 3078 {
2348 SvIVX (AvARRAY (av)[0]) = 0; 3079 SvIVX (AvARRAY (av)[0]) = 0;
2349 frame->prepare = prepare_nop; 3080 frame->prepare = prepare_nop;
2350 frame->check = slf_check_nop; 3081 frame->check = slf_check_nop;
2351 } 3082 }
2352 else 3083 else
2353 { 3084 {
2354 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3085 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2355 3086
2356 av_push (av, waiter); 3087 av_push (av, waiter);
2357 3088
2358 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3089 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2359 frame->prepare = prepare_schedule; 3090 frame->prepare = prepare_schedule;
… …
2377 3108
2378static void 3109static void
2379coro_aio_callback (pTHX_ CV *cv) 3110coro_aio_callback (pTHX_ CV *cv)
2380{ 3111{
2381 dXSARGS; 3112 dXSARGS;
2382 AV *state = (AV *)GENSUB_ARG; 3113 AV *state = (AV *)S_GENSUB_ARG;
2383 SV *coro = av_pop (state); 3114 SV *coro = av_pop (state);
2384 SV *data_sv = newSV (sizeof (struct io_state)); 3115 SV *data_sv = newSV (sizeof (struct io_state));
2385 3116
2386 av_extend (state, items); 3117 av_extend (state, items - 1);
2387 3118
2388 sv_upgrade (data_sv, SVt_PV); 3119 sv_upgrade (data_sv, SVt_PV);
2389 SvCUR_set (data_sv, sizeof (struct io_state)); 3120 SvCUR_set (data_sv, sizeof (struct io_state));
2390 SvPOK_only (data_sv); 3121 SvPOK_only (data_sv);
2391 3122
… …
2472 dSP; 3203 dSP;
2473 3204
2474 static SV *prio_cv; 3205 static SV *prio_cv;
2475 static SV *prio_sv; 3206 static SV *prio_sv;
2476 3207
2477 if (expect_false (!prio_cv)) 3208 if (ecb_expect_false (!prio_cv))
2478 { 3209 {
2479 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3210 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2480 prio_sv = newSViv (0); 3211 prio_sv = newSViv (0);
2481 } 3212 }
2482 3213
… …
2501 3232
2502 for (i = 0; i < items; ++i) 3233 for (i = 0; i < items; ++i)
2503 PUSHs (arg [i]); 3234 PUSHs (arg [i]);
2504 3235
2505 /* now push the callback closure */ 3236 /* now push the callback closure */
2506 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3237 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2507 3238
2508 /* now call the AIO function - we assume our request is uncancelable */ 3239 /* now call the AIO function - we assume our request is uncancelable */
2509 PUTBACK; 3240 PUTBACK;
2510 call_sv ((SV *)req, G_VOID | G_DISCARD); 3241 call_sv ((SV *)req, G_VOID | G_DISCARD);
2511 } 3242 }
2512 3243
2513 /* now that the requets is going, we loop toll we have a result */ 3244 /* now that the request is going, we loop till we have a result */
2514 frame->data = (void *)state; 3245 frame->data = (void *)state;
2515 frame->prepare = prepare_schedule; 3246 frame->prepare = prepare_schedule;
2516 frame->check = slf_check_aio_req; 3247 frame->check = slf_check_aio_req;
2517} 3248}
2518 3249
… …
2525 3256
2526 XSRETURN_EMPTY; 3257 XSRETURN_EMPTY;
2527} 3258}
2528 3259
2529/*****************************************************************************/ 3260/*****************************************************************************/
3261
3262#if CORO_CLONE
3263# include "clone.c"
3264#endif
3265
3266/*****************************************************************************/
3267
3268static SV *
3269coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3270{
3271 SV *coro_sv;
3272 struct coro *coro;
3273 MAGIC *mg;
3274 HV *hv;
3275 SV *cb;
3276 int i;
3277
3278 if (argc > 0)
3279 {
3280 cb = s_get_cv_croak (argv [0]);
3281
3282 if (!is_coro)
3283 {
3284 if (CvISXSUB (cb))
3285 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3286
3287 if (!CvROOT (cb))
3288 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3289 }
3290 }
3291
3292 Newz (0, coro, 1, struct coro);
3293 coro->args = newAV ();
3294 coro->flags = CF_NEW;
3295
3296 if (coro_first) coro_first->prev = coro;
3297 coro->next = coro_first;
3298 coro_first = coro;
3299
3300 coro->hv = hv = newHV ();
3301 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3302 mg->mg_flags |= MGf_DUP;
3303 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3304
3305 if (argc > 0)
3306 {
3307 av_extend (coro->args, argc + is_coro - 1);
3308
3309 if (is_coro)
3310 {
3311 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3312 cb = (SV *)cv_coro_run;
3313 }
3314
3315 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3316
3317 for (i = 1; i < argc; i++)
3318 av_push (coro->args, newSVsv (argv [i]));
3319 }
3320
3321 return coro_sv;
3322}
3323
3324#ifndef __cplusplus
3325ecb_cold XS(boot_Coro__State);
3326#endif
2530 3327
2531MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3328MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2532 3329
2533PROTOTYPES: DISABLE 3330PROTOTYPES: DISABLE
2534 3331
… …
2539 coro_thx = PERL_GET_CONTEXT; 3336 coro_thx = PERL_GET_CONTEXT;
2540# endif 3337# endif
2541#endif 3338#endif
2542 BOOT_PAGESIZE; 3339 BOOT_PAGESIZE;
2543 3340
3341 cctx_current = cctx_new_empty ();
3342
2544 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3343 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2545 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3344 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2546 3345
2547 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3346 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2548 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3347 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2567 3366
2568 { 3367 {
2569 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3368 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2570 3369
2571 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3370 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2572 hv_store_ent (PL_custom_op_names, slf, 3371 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2573 newSVpv ("coro_slf", 0), 0);
2574 3372
2575 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3373 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2576 hv_store_ent (PL_custom_op_descs, slf, 3374 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2577 newSVpv ("coro schedule like function", 0), 0);
2578 } 3375 }
2579 3376
2580 coroapi.ver = CORO_API_VERSION; 3377 coroapi.ver = CORO_API_VERSION;
2581 coroapi.rev = CORO_API_REVISION; 3378 coroapi.rev = CORO_API_REVISION;
2582 3379
… …
2587 coroapi.prepare_nop = prepare_nop; 3384 coroapi.prepare_nop = prepare_nop;
2588 coroapi.prepare_schedule = prepare_schedule; 3385 coroapi.prepare_schedule = prepare_schedule;
2589 coroapi.prepare_cede = prepare_cede; 3386 coroapi.prepare_cede = prepare_cede;
2590 coroapi.prepare_cede_notself = prepare_cede_notself; 3387 coroapi.prepare_cede_notself = prepare_cede_notself;
2591 3388
2592 { 3389 time_init (aTHX);
2593 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2594 3390
2595 if (!svp) croak ("Time::HiRes is required");
2596 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2597
2598 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2599 }
2600
2601 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3391 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2602} 3392}
2603 3393
2604SV * 3394SV *
2605new (char *klass, ...) 3395new (SV *klass, ...)
3396 ALIAS:
3397 Coro::new = 1
2606 CODE: 3398 CODE:
2607{ 3399 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2608 struct coro *coro; 3400 OUTPUT:
2609 MAGIC *mg;
2610 HV *hv;
2611 int i;
2612
2613 Newz (0, coro, 1, struct coro);
2614 coro->args = newAV ();
2615 coro->flags = CF_NEW;
2616
2617 if (coro_first) coro_first->prev = coro;
2618 coro->next = coro_first;
2619 coro_first = coro;
2620
2621 coro->hv = hv = newHV ();
2622 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2623 mg->mg_flags |= MGf_DUP;
2624 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2625
2626 av_extend (coro->args, items - 1);
2627 for (i = 1; i < items; i++)
2628 av_push (coro->args, newSVsv (ST (i)));
2629}
2630 OUTPUT:
2631 RETVAL 3401 RETVAL
2632 3402
2633void 3403void
2634transfer (...) 3404transfer (...)
2635 PROTOTYPE: $$ 3405 PROTOTYPE: $$
2636 CODE: 3406 CODE:
2637 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3407 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2638 3408
2639bool
2640_destroy (SV *coro_sv)
2641 CODE:
2642 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2643 OUTPUT:
2644 RETVAL
2645
2646void 3409void
2647_exit (int code) 3410_exit (int code)
2648 PROTOTYPE: $ 3411 PROTOTYPE: $
2649 CODE: 3412 CODE:
2650 _exit (code); 3413 _exit (code);
3414
3415SV *
3416clone (Coro::State coro)
3417 CODE:
3418{
3419#if CORO_CLONE
3420 struct coro *ncoro = coro_clone (aTHX_ coro);
3421 MAGIC *mg;
3422 /* TODO: too much duplication */
3423 ncoro->hv = newHV ();
3424 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3425 mg->mg_flags |= MGf_DUP;
3426 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3427#else
3428 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3429#endif
3430}
3431 OUTPUT:
3432 RETVAL
2651 3433
2652int 3434int
2653cctx_stacksize (int new_stacksize = 0) 3435cctx_stacksize (int new_stacksize = 0)
2654 PROTOTYPE: ;$ 3436 PROTOTYPE: ;$
2655 CODE: 3437 CODE:
… …
2705 eval = 1 3487 eval = 1
2706 CODE: 3488 CODE:
2707{ 3489{
2708 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3490 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2709 { 3491 {
2710 struct coro temp; 3492 struct coro *current = SvSTATE_current;
3493 struct CoroSLF slf_save;
2711 3494
2712 if (!(coro->flags & CF_RUNNING)) 3495 if (current != coro)
2713 { 3496 {
2714 PUTBACK; 3497 PUTBACK;
2715 save_perl (aTHX_ &temp); 3498 save_perl (aTHX_ current);
2716 load_perl (aTHX_ coro); 3499 load_perl (aTHX_ coro);
3500 /* the coro is most likely in an active SLF call.
3501 * while not strictly required (the code we execute is
3502 * not allowed to call any SLF functions), it's cleaner
3503 * to reinitialise the slf_frame and restore it later.
3504 * This might one day allow us to actually do SLF calls
3505 * from code executed here.
3506 */
3507 slf_save = slf_frame;
3508 slf_frame.prepare = 0;
3509 SPAGAIN;
2717 } 3510 }
2718 3511
2719 {
2720 dSP;
2721 ENTER;
2722 SAVETMPS;
2723 PUTBACK;
2724 PUSHSTACK; 3512 PUSHSTACK;
3513
2725 PUSHMARK (SP); 3514 PUSHMARK (SP);
3515 PUTBACK;
2726 3516
2727 if (ix) 3517 if (ix)
2728 eval_sv (coderef, 0); 3518 eval_sv (coderef, 0);
2729 else 3519 else
2730 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3520 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2731 3521
2732 POPSTACK; 3522 POPSTACK;
2733 SPAGAIN; 3523 SPAGAIN;
2734 FREETMPS;
2735 LEAVE;
2736 PUTBACK;
2737 }
2738 3524
2739 if (!(coro->flags & CF_RUNNING)) 3525 if (current != coro)
2740 { 3526 {
3527 PUTBACK;
3528 slf_frame = slf_save;
2741 save_perl (aTHX_ coro); 3529 save_perl (aTHX_ coro);
2742 load_perl (aTHX_ &temp); 3530 load_perl (aTHX_ current);
2743 SPAGAIN; 3531 SPAGAIN;
2744 } 3532 }
2745 } 3533 }
2746} 3534}
2747 3535
… …
2750 PROTOTYPE: $ 3538 PROTOTYPE: $
2751 ALIAS: 3539 ALIAS:
2752 is_ready = CF_READY 3540 is_ready = CF_READY
2753 is_running = CF_RUNNING 3541 is_running = CF_RUNNING
2754 is_new = CF_NEW 3542 is_new = CF_NEW
2755 is_destroyed = CF_DESTROYED 3543 is_destroyed = CF_ZOMBIE
3544 is_zombie = CF_ZOMBIE
3545 is_suspended = CF_SUSPENDED
2756 CODE: 3546 CODE:
2757 RETVAL = boolSV (coro->flags & ix); 3547 RETVAL = boolSV (coro->flags & ix);
2758 OUTPUT: 3548 OUTPUT:
2759 RETVAL 3549 RETVAL
2760 3550
2761void 3551void
2762throw (Coro::State self, SV *throw = &PL_sv_undef) 3552throw (Coro::State self, SV *exception = &PL_sv_undef)
2763 PROTOTYPE: $;$ 3553 PROTOTYPE: $;$
2764 CODE: 3554 CODE:
2765{ 3555{
2766 struct coro *current = SvSTATE_current; 3556 struct coro *current = SvSTATE_current;
2767 SV **throwp = self == current ? &CORO_THROW : &self->except; 3557 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
2768 SvREFCNT_dec (*throwp); 3558 SvREFCNT_dec (*exceptionp);
2769 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3559 SvGETMAGIC (exception);
3560 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
2770} 3561}
2771 3562
2772void 3563void
2773api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3564api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2774 PROTOTYPE: $;$ 3565 PROTOTYPE: $;$
… …
2776 3567
2777SV * 3568SV *
2778has_cctx (Coro::State coro) 3569has_cctx (Coro::State coro)
2779 PROTOTYPE: $ 3570 PROTOTYPE: $
2780 CODE: 3571 CODE:
2781 RETVAL = boolSV (!!coro->cctx); 3572 /* maybe manage the running flag differently */
3573 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2782 OUTPUT: 3574 OUTPUT:
2783 RETVAL 3575 RETVAL
2784 3576
2785int 3577int
2786is_traced (Coro::State coro) 3578is_traced (Coro::State coro)
… …
2806 3598
2807void 3599void
2808force_cctx () 3600force_cctx ()
2809 PROTOTYPE: 3601 PROTOTYPE:
2810 CODE: 3602 CODE:
2811 SvSTATE_current->cctx->idle_sp = 0; 3603 cctx_current->idle_sp = 0;
2812 3604
2813void 3605void
2814swap_defsv (Coro::State self) 3606swap_defsv (Coro::State self)
2815 PROTOTYPE: $ 3607 PROTOTYPE: $
2816 ALIAS: 3608 ALIAS:
… …
2824 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3616 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2825 3617
2826 SV *tmp = *src; *src = *dst; *dst = tmp; 3618 SV *tmp = *src; *src = *dst; *dst = tmp;
2827 } 3619 }
2828 3620
3621void
3622cancel (Coro::State self)
3623 CODE:
3624 coro_state_destroy (aTHX_ self);
3625
3626SV *
3627enable_times (int enabled = enable_times)
3628 CODE:
3629{
3630 RETVAL = boolSV (enable_times);
3631
3632 if (enabled != enable_times)
3633 {
3634 enable_times = enabled;
3635
3636 coro_times_update ();
3637 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3638 }
3639}
3640 OUTPUT:
3641 RETVAL
3642
3643void
3644times (Coro::State self)
3645 PPCODE:
3646{
3647 struct coro *current = SvSTATE (coro_current);
3648
3649 if (ecb_expect_false (current == self))
3650 {
3651 coro_times_update ();
3652 coro_times_add (SvSTATE (coro_current));
3653 }
3654
3655 EXTEND (SP, 2);
3656 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3657 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3658
3659 if (ecb_expect_false (current == self))
3660 coro_times_sub (SvSTATE (coro_current));
3661}
3662
3663void
3664swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3665 CODE:
3666{
3667 struct coro *current = SvSTATE_current;
3668
3669 if (current == coro)
3670 SWAP_SVS (current);
3671
3672 if (!coro->swap_sv)
3673 coro->swap_sv = newAV ();
3674
3675 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3676 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3677
3678 if (current == coro)
3679 SWAP_SVS (current);
3680}
3681
2829 3682
2830MODULE = Coro::State PACKAGE = Coro 3683MODULE = Coro::State PACKAGE = Coro
2831 3684
2832BOOT: 3685BOOT:
2833{ 3686{
2834 int i;
2835
2836 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2837 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3687 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2838 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3688 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2839 3689 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2840 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3690 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2841 SvREADONLY_on (coro_current); 3691 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3692 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3693 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3694 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2842 3695
3696 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3697 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3698 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3699 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3700
2843 coro_stash = gv_stashpv ("Coro", TRUE); 3701 coro_stash = gv_stashpv ("Coro", TRUE);
2844 3702
2845 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3703 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2846 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3704 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2847 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3705 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2848 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3706 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2849 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3707 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2850 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3708 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2851
2852 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2853 coro_ready[i] = newAV ();
2854 3709
2855 { 3710 {
2856 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3711 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2857 3712
2858 coroapi.schedule = api_schedule; 3713 coroapi.schedule = api_schedule;
3714 coroapi.schedule_to = api_schedule_to;
2859 coroapi.cede = api_cede; 3715 coroapi.cede = api_cede;
2860 coroapi.cede_notself = api_cede_notself; 3716 coroapi.cede_notself = api_cede_notself;
2861 coroapi.ready = api_ready; 3717 coroapi.ready = api_ready;
2862 coroapi.is_ready = api_is_ready; 3718 coroapi.is_ready = api_is_ready;
2863 coroapi.nready = coro_nready; 3719 coroapi.nready = coro_nready;
… …
2867 sv_setiv (sv, (IV)&coroapi); 3723 sv_setiv (sv, (IV)&coroapi);
2868 SvREADONLY_on (sv); 3724 SvREADONLY_on (sv);
2869 } 3725 }
2870} 3726}
2871 3727
3728SV *
3729async (...)
3730 PROTOTYPE: &@
3731 CODE:
3732 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3733 api_ready (aTHX_ RETVAL);
3734 OUTPUT:
3735 RETVAL
3736
3737void
3738_destroy (Coro::State coro)
3739 CODE:
3740 /* used by the manager thread */
3741 coro_state_destroy (aTHX_ coro);
3742
3743void
3744on_destroy (Coro::State coro, SV *cb)
3745 CODE:
3746 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3747
3748void
3749join (...)
3750 CODE:
3751 CORO_EXECUTE_SLF_XS (slf_init_join);
3752
3753void
3754terminate (...)
3755 CODE:
3756 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3757
3758void
3759cancel (...)
3760 CODE:
3761 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3762
3763int
3764safe_cancel (Coro::State self, ...)
3765 C_ARGS: aTHX_ self, &ST (1), items - 1
3766
2872void 3767void
2873schedule (...) 3768schedule (...)
2874 CODE: 3769 CODE:
2875 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3770 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3771
3772void
3773schedule_to (...)
3774 CODE:
3775 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3776
3777void
3778cede_to (...)
3779 CODE:
3780 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2876 3781
2877void 3782void
2878cede (...) 3783cede (...)
2879 CODE: 3784 CODE:
2880 CORO_EXECUTE_SLF_XS (slf_init_cede); 3785 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2894void 3799void
2895_set_readyhook (SV *hook) 3800_set_readyhook (SV *hook)
2896 PROTOTYPE: $ 3801 PROTOTYPE: $
2897 CODE: 3802 CODE:
2898 SvREFCNT_dec (coro_readyhook); 3803 SvREFCNT_dec (coro_readyhook);
3804 SvGETMAGIC (hook);
3805 if (SvOK (hook))
3806 {
2899 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3807 coro_readyhook = newSVsv (hook);
3808 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3809 }
3810 else
3811 {
3812 coro_readyhook = 0;
3813 CORO_READYHOOK = 0;
3814 }
2900 3815
2901int 3816int
2902prio (Coro::State coro, int newprio = 0) 3817prio (Coro::State coro, int newprio = 0)
2903 PROTOTYPE: $;$ 3818 PROTOTYPE: $;$
2904 ALIAS: 3819 ALIAS:
… …
2910 if (items > 1) 3825 if (items > 1)
2911 { 3826 {
2912 if (ix) 3827 if (ix)
2913 newprio = coro->prio - newprio; 3828 newprio = coro->prio - newprio;
2914 3829
2915 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3830 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2916 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3831 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2917 3832
2918 coro->prio = newprio; 3833 coro->prio = newprio;
2919 } 3834 }
2920} 3835}
2921 OUTPUT: 3836 OUTPUT:
… …
2935 CODE: 3850 CODE:
2936 RETVAL = coro_nready; 3851 RETVAL = coro_nready;
2937 OUTPUT: 3852 OUTPUT:
2938 RETVAL 3853 RETVAL
2939 3854
2940# for async_pool speedup
2941void 3855void
2942_pool_1 (SV *cb) 3856suspend (Coro::State self)
3857 PROTOTYPE: $
2943 CODE: 3858 CODE:
2944{ 3859 self->flags |= CF_SUSPENDED;
2945 HV *hv = (HV *)SvRV (coro_current);
2946 struct coro *coro = SvSTATE_hv ((SV *)hv);
2947 AV *defav = GvAV (PL_defgv);
2948 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2949 AV *invoke_av;
2950 int i, len;
2951 3860
2952 if (!invoke) 3861void
3862resume (Coro::State self)
3863 PROTOTYPE: $
3864 CODE:
3865 self->flags &= ~CF_SUSPENDED;
3866
3867void
3868_pool_handler (...)
3869 CODE:
3870 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3871
3872void
3873async_pool (SV *cv, ...)
3874 PROTOTYPE: &@
3875 PPCODE:
3876{
3877 HV *hv = (HV *)av_pop (av_async_pool);
3878 AV *av = newAV ();
3879 SV *cb = ST (0);
3880 int i;
3881
3882 av_extend (av, items - 2);
3883 for (i = 1; i < items; ++i)
3884 av_push (av, SvREFCNT_inc_NN (ST (i)));
3885
3886 if ((SV *)hv == &PL_sv_undef)
2953 { 3887 {
2954 SV *old = PL_diehook; 3888 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2955 PL_diehook = 0; 3889 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2956 SvREFCNT_dec (old); 3890 SvREFCNT_dec (sv);
2957 croak ("\3async_pool terminate\2\n");
2958 } 3891 }
2959 3892
2960 SvREFCNT_dec (coro->saved_deffh);
2961 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2962
2963 hv_store (hv, "desc", sizeof ("desc") - 1,
2964 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2965
2966 invoke_av = (AV *)SvRV (invoke);
2967 len = av_len (invoke_av);
2968
2969 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2970
2971 if (len > 0)
2972 { 3893 {
2973 av_fill (defav, len - 1); 3894 struct coro *coro = SvSTATE_hv (hv);
2974 for (i = 0; i < len; ++i) 3895
2975 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3896 assert (!coro->invoke_cb);
3897 assert (!coro->invoke_av);
3898 coro->invoke_cb = SvREFCNT_inc (cb);
3899 coro->invoke_av = av;
2976 } 3900 }
2977}
2978 3901
2979void 3902 api_ready (aTHX_ (SV *)hv);
2980_pool_2 (SV *cb)
2981 CODE:
2982{
2983 HV *hv = (HV *)SvRV (coro_current);
2984 struct coro *coro = SvSTATE_hv ((SV *)hv);
2985 3903
2986 sv_setsv (cb, &PL_sv_undef); 3904 if (GIMME_V != G_VOID)
2987 3905 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
2988 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 3906 else
2989 coro->saved_deffh = 0;
2990
2991 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2992 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2993 {
2994 SV *old = PL_diehook;
2995 PL_diehook = 0;
2996 SvREFCNT_dec (old); 3907 SvREFCNT_dec (hv);
2997 croak ("\3async_pool terminate\2\n");
2998 }
2999
3000 av_clear (GvAV (PL_defgv));
3001 hv_store (hv, "desc", sizeof ("desc") - 1,
3002 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
3003
3004 coro->prio = 0;
3005
3006 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
3007 api_trace (aTHX_ coro_current, 0);
3008
3009 av_push (av_async_pool, newSVsv (coro_current));
3010} 3908}
3011 3909
3012SV * 3910SV *
3013rouse_cb () 3911rouse_cb ()
3014 PROTOTYPE: 3912 PROTOTYPE:
… …
3021rouse_wait (...) 3919rouse_wait (...)
3022 PROTOTYPE: ;$ 3920 PROTOTYPE: ;$
3023 PPCODE: 3921 PPCODE:
3024 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3922 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3025 3923
3924void
3925on_enter (SV *block)
3926 ALIAS:
3927 on_leave = 1
3928 PROTOTYPE: &
3929 CODE:
3930{
3931 struct coro *coro = SvSTATE_current;
3932 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3933
3934 block = s_get_cv_croak (block);
3935
3936 if (!*avp)
3937 *avp = newAV ();
3938
3939 av_push (*avp, SvREFCNT_inc (block));
3940
3941 if (!ix)
3942 on_enterleave_call (aTHX_ block);
3943
3944 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3945 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3946 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3947}
3948
3026 3949
3027MODULE = Coro::State PACKAGE = PerlIO::cede 3950MODULE = Coro::State PACKAGE = PerlIO::cede
3028 3951
3029BOOT: 3952BOOT:
3030 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3953 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3033MODULE = Coro::State PACKAGE = Coro::Semaphore 3956MODULE = Coro::State PACKAGE = Coro::Semaphore
3034 3957
3035SV * 3958SV *
3036new (SV *klass, SV *count = 0) 3959new (SV *klass, SV *count = 0)
3037 CODE: 3960 CODE:
3961{
3962 int semcnt = 1;
3963
3964 if (count)
3965 {
3966 SvGETMAGIC (count);
3967
3968 if (SvOK (count))
3969 semcnt = SvIV (count);
3970 }
3971
3038 RETVAL = sv_bless ( 3972 RETVAL = sv_bless (
3039 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3973 coro_waitarray_new (aTHX_ semcnt),
3040 GvSTASH (CvGV (cv)) 3974 GvSTASH (CvGV (cv))
3041 ); 3975 );
3976}
3042 OUTPUT: 3977 OUTPUT:
3043 RETVAL 3978 RETVAL
3044 3979
3045# helper for Coro::Channel 3980# helper for Coro::Channel and others
3046SV * 3981SV *
3047_alloc (int count) 3982_alloc (int count)
3048 CODE: 3983 CODE:
3049 RETVAL = coro_waitarray_new (aTHX_ count); 3984 RETVAL = coro_waitarray_new (aTHX_ count);
3050 OUTPUT: 3985 OUTPUT:
… …
3108 for (i = 1; i <= wcount; ++i) 4043 for (i = 1; i <= wcount; ++i)
3109 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4044 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3110 } 4045 }
3111} 4046}
3112 4047
4048MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4049
4050void
4051_may_delete (SV *sem, int count, int extra_refs)
4052 PPCODE:
4053{
4054 AV *av = (AV *)SvRV (sem);
4055
4056 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4057 && AvFILLp (av) == 0 /* no waiters, just count */
4058 && SvIV (AvARRAY (av)[0]) == count)
4059 XSRETURN_YES;
4060
4061 XSRETURN_NO;
4062}
4063
3113MODULE = Coro::State PACKAGE = Coro::Signal 4064MODULE = Coro::State PACKAGE = Coro::Signal
3114 4065
3115SV * 4066SV *
3116new (SV *klass) 4067new (SV *klass)
3117 CODE: 4068 CODE:
… …
3188 4139
3189void 4140void
3190_register (char *target, char *proto, SV *req) 4141_register (char *target, char *proto, SV *req)
3191 CODE: 4142 CODE:
3192{ 4143{
3193 HV *st; 4144 SV *req_cv = s_get_cv_croak (req);
3194 GV *gvp;
3195 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
3196 /* newXSproto doesn't return the CV on 5.8 */ 4145 /* newXSproto doesn't return the CV on 5.8 */
3197 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4146 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3198 sv_setpv ((SV *)slf_cv, proto); 4147 sv_setpv ((SV *)slf_cv, proto);
3199 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4148 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3200} 4149}
3201 4150
4151MODULE = Coro::State PACKAGE = Coro::Select
4152
4153void
4154patch_pp_sselect ()
4155 CODE:
4156 if (!coro_old_pp_sselect)
4157 {
4158 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4159 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4160 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4161 }
4162
4163void
4164unpatch_pp_sselect ()
4165 CODE:
4166 if (coro_old_pp_sselect)
4167 {
4168 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4169 coro_old_pp_sselect = 0;
4170 }
4171

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