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Comparing Coro/Coro/State.xs (file contents):
Revision 1.333 by root, Thu Nov 27 12:39:00 2008 UTC vs.
Revision 1.415 by root, Tue Aug 30 07:48:53 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
23# include <inttypes.h> /* most portable stdint.h */ 35# include <inttypes.h> /* most portable stdint.h */
24#endif 36#endif
25 37
26#ifdef HAVE_MMAP 38#if HAVE_MMAP
27# include <unistd.h> 39# include <unistd.h>
28# include <sys/mman.h> 40# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS 41# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON 42# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON 43# define MAP_ANONYMOUS MAP_ANON
… …
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) \ 68#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 69# define HAS_SCOPESTACK_NAME 1
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
109
110/* 5.8.7 */
111#ifndef SvRV_set
112# define SvRV_set(s,v) SvRV(s) = (v)
113#endif 70#endif
114 71
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 72#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 73# undef CORO_STACKGUARD
117#endif 74#endif
… …
135# define STACKLEVEL ((void *)&stacklevel) 92# define STACKLEVEL ((void *)&stacklevel)
136#endif 93#endif
137 94
138#define IN_DESTRUCT PL_dirty 95#define IN_DESTRUCT PL_dirty
139 96
140#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr),(value))
143# define INLINE static inline
144#else
145# define attribute(x)
146# define expect(expr,value) (expr)
147# define INLINE static
148#endif
149
150#define expect_false(expr) expect ((expr) != 0, 0)
151#define expect_true(expr) expect ((expr) != 0, 1)
152
153#define NOINLINE attribute ((noinline))
154
155#include "CoroAPI.h" 97#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */ 98#define GCoroAPI (&coroapi) /* very sneaky */
157 99
158#ifdef USE_ITHREADS 100#ifdef USE_ITHREADS
159# if CORO_PTHREAD 101# if CORO_PTHREAD
160static void *coro_thx; 102static void *coro_thx;
161# endif 103# endif
162#endif 104#endif
163 105
106/* used in state.h */
107#define VAR(name,type) VARx(name, PL_ ## name, type)
108
109#ifdef __linux
110# include <time.h> /* for timespec */
111# include <syscall.h> /* for SYS_* */
112# ifdef SYS_clock_gettime
113# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
114# define CORO_CLOCK_MONOTONIC 1
115# define CORO_CLOCK_THREAD_CPUTIME_ID 3
116# endif
117#endif
118
164static double (*nvtime)(); /* so why doesn't it take void? */ 119static double (*nvtime)(); /* so why doesn't it take void? */
120static void (*u2time)(pTHX_ UV ret[2]);
165 121
166/* we hijack an hopefully unused CV flag for our purposes */ 122/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 123#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 124static OP *pp_slf (pTHX);
125static void slf_destroy (pTHX_ struct coro *coro);
169 126
170static U32 cctx_gen; 127static U32 cctx_gen;
171static size_t cctx_stacksize = CORO_STACKSIZE; 128static size_t cctx_stacksize = CORO_STACKSIZE;
172static struct CoroAPI coroapi; 129static struct CoroAPI coroapi;
173static AV *main_mainstack; /* used to differentiate between $main and others */ 130static AV *main_mainstack; /* used to differentiate between $main and others */
… …
190static SV *sv_pool_size; 147static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */ 148static SV *sv_async_pool_idle; /* description string */
192static AV *av_async_pool; /* idle pool */ 149static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */ 150static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler; 151static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
196 152
197/* Coro::AnyEvent */ 153/* Coro::AnyEvent */
198static SV *sv_activity; 154static SV *sv_activity;
199 155
156/* enable processtime/realtime profiling */
157static char enable_times;
158typedef U32 coro_ts[2];
159static coro_ts time_real, time_cpu;
160static char times_valid;
161
200static struct coro_cctx *cctx_first; 162static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 163static int cctx_count, cctx_idle;
202 164
203enum { 165enum
166{
204 CC_MAPPED = 0x01, 167 CC_MAPPED = 0x01,
205 CC_NOREUSE = 0x02, /* throw this away after tracing */ 168 CC_NOREUSE = 0x02, /* throw this away after tracing */
206 CC_TRACE = 0x04, 169 CC_TRACE = 0x04,
207 CC_TRACE_SUB = 0x08, /* trace sub calls */ 170 CC_TRACE_SUB = 0x08, /* trace sub calls */
208 CC_TRACE_LINE = 0x10, /* trace each statement */ 171 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
229 int valgrind_id; 192 int valgrind_id;
230#endif 193#endif
231 unsigned char flags; 194 unsigned char flags;
232} coro_cctx; 195} coro_cctx;
233 196
234coro_cctx *cctx_current; /* the currently running cctx */ 197static coro_cctx *cctx_current; /* the currently running cctx */
235 198
236/*****************************************************************************/ 199/*****************************************************************************/
237 200
201static MGVTBL coro_state_vtbl;
202
238enum { 203enum
204{
239 CF_RUNNING = 0x0001, /* coroutine is running */ 205 CF_RUNNING = 0x0001, /* coroutine is running */
240 CF_READY = 0x0002, /* coroutine is ready */ 206 CF_READY = 0x0002, /* coroutine is ready */
241 CF_NEW = 0x0004, /* has never been switched to */ 207 CF_NEW = 0x0004, /* has never been switched to */
242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 208 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
209 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
210 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
243}; 211};
244 212
245/* the structure where most of the perl state is stored, overlaid on the cxstack */ 213/* the structure where most of the perl state is stored, overlaid on the cxstack */
246typedef struct 214typedef struct
247{ 215{
248 SV *defsv;
249 AV *defav;
250 SV *errsv;
251 SV *irsgv;
252 HV *hinthv;
253#define VAR(name,type) type name; 216#define VARx(name,expr,type) type name;
254# include "state.h" 217# include "state.h"
255#undef VAR 218#undef VARx
256} perl_slots; 219} perl_slots;
257 220
221/* how many context stack entries do we need for perl_slots */
258#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 222#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
259 223
260/* this is a structure representing a perl-level coroutine */ 224/* this is a structure representing a perl-level coroutine */
261struct coro { 225struct coro
226{
262 /* the C coroutine allocated to this perl coroutine, if any */ 227 /* the C coroutine allocated to this perl coroutine, if any */
263 coro_cctx *cctx; 228 coro_cctx *cctx;
229
230 /* ready queue */
231 struct coro *next_ready;
264 232
265 /* state data */ 233 /* state data */
266 struct CoroSLF slf_frame; /* saved slf frame */ 234 struct CoroSLF slf_frame; /* saved slf frame */
267 AV *mainstack; 235 AV *mainstack;
268 perl_slots *slot; /* basically the saved sp */ 236 perl_slots *slot; /* basically the saved sp */
269 237
270 CV *startcv; /* the CV to execute */ 238 CV *startcv; /* the CV to execute */
271 AV *args; /* data associated with this coroutine (initial args) */ 239 AV *args; /* data associated with this coroutine (initial args) */
272 int refcnt; /* coroutines are refcounted, yes */
273 int flags; /* CF_ flags */ 240 int flags; /* CF_ flags */
274 HV *hv; /* the perl hash associated with this coro, if any */ 241 HV *hv; /* the perl hash associated with this coro, if any */
275 void (*on_destroy)(pTHX_ struct coro *coro);
276 242
277 /* statistics */ 243 /* statistics */
278 int usecount; /* number of transfers to this coro */ 244 int usecount; /* number of transfers to this coro */
279 245
280 /* coro process data */ 246 /* coro process data */
281 int prio; 247 int prio;
282 SV *except; /* exception to be thrown */ 248 SV *except; /* exception to be thrown */
283 SV *rouse_cb; 249 SV *rouse_cb; /* last rouse callback */
250 AV *on_destroy; /* callbacks or coros to notify on destroy */
251 AV *status; /* the exit status list */
284 252
285 /* async_pool */ 253 /* async_pool */
286 SV *saved_deffh; 254 SV *saved_deffh;
287 SV *invoke_cb; 255 SV *invoke_cb;
288 AV *invoke_av; 256 AV *invoke_av;
289 257
258 /* on_enter/on_leave */
259 AV *on_enter;
260 AV *on_leave;
261
262 /* swap_sv */
263 AV *swap_sv;
264
265 /* times */
266 coro_ts t_cpu, t_real;
267
290 /* linked list */ 268 /* linked list */
291 struct coro *next, *prev; 269 struct coro *next, *prev;
292}; 270};
293 271
294typedef struct coro *Coro__State; 272typedef struct coro *Coro__State;
295typedef struct coro *Coro__State_or_hashref; 273typedef struct coro *Coro__State_or_hashref;
296 274
297/* the following variables are effectively part of the perl context */ 275/* the following variables are effectively part of the perl context */
298/* and get copied between struct coro and these variables */ 276/* and get copied between struct coro and these variables */
299/* the mainr easonw e don't support windows process emulation */ 277/* the main reason we don't support windows process emulation */
300static struct CoroSLF slf_frame; /* the current slf frame */ 278static struct CoroSLF slf_frame; /* the current slf frame */
301 279
302/** Coro ********************************************************************/ 280/** Coro ********************************************************************/
303 281
304#define PRIO_MAX 3 282#define CORO_PRIO_MAX 3
305#define PRIO_HIGH 1 283#define CORO_PRIO_HIGH 1
306#define PRIO_NORMAL 0 284#define CORO_PRIO_NORMAL 0
307#define PRIO_LOW -1 285#define CORO_PRIO_LOW -1
308#define PRIO_IDLE -3 286#define CORO_PRIO_IDLE -3
309#define PRIO_MIN -4 287#define CORO_PRIO_MIN -4
310 288
311/* for Coro.pm */ 289/* for Coro.pm */
312static SV *coro_current; 290static SV *coro_current;
313static SV *coro_readyhook; 291static SV *coro_readyhook;
314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 292static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315static CV *cv_coro_run, *cv_coro_terminate; 293static CV *cv_coro_run;
316static struct coro *coro_first; 294static struct coro *coro_first;
317#define coro_nready coroapi.nready 295#define coro_nready coroapi.nready
318 296
297/** JIT *********************************************************************/
298
299#if CORO_JIT
300 /* APPLE doesn't have HAVE_MMAP though */
301 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
302 #ifndef CORO_JIT_TYPE
303 #if __x86_64 && CORO_JIT_UNIXY
304 #define CORO_JIT_TYPE "amd64-unix"
305 #elif __i386 && CORO_JIT_UNIXY
306 #define CORO_JIT_TYPE "x86-unix"
307 #endif
308 #endif
309#endif
310
311#if !defined(CORO_JIT_TYPE) || !HAVE_MMAP
312 #undef CORO_JIT
313#endif
314
315#if CORO_JIT
316 typedef void (*load_save_perl_slots_type)(perl_slots *);
317 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
318#endif
319
320/** Coro::Select ************************************************************/
321
322static OP *(*coro_old_pp_sselect) (pTHX);
323static SV *coro_select_select;
324
325/* horrible hack, but if it works... */
326static OP *
327coro_pp_sselect (pTHX)
328{
329 dSP;
330 PUSHMARK (SP - 4); /* fake argument list */
331 XPUSHs (coro_select_select);
332 PUTBACK;
333
334 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
335 PL_op->op_flags |= OPf_STACKED;
336 PL_op->op_private = 0;
337 return PL_ppaddr [OP_ENTERSUB](aTHX);
338}
339
340/** time stuff **************************************************************/
341
342#ifdef HAS_GETTIMEOFDAY
343
344ecb_inline void
345coro_u2time (pTHX_ UV ret[2])
346{
347 struct timeval tv;
348 gettimeofday (&tv, 0);
349
350 ret [0] = tv.tv_sec;
351 ret [1] = tv.tv_usec;
352}
353
354ecb_inline double
355coro_nvtime (void)
356{
357 struct timeval tv;
358 gettimeofday (&tv, 0);
359
360 return tv.tv_sec + tv.tv_usec * 1e-6;
361}
362
363ecb_inline void
364time_init (pTHX)
365{
366 nvtime = coro_nvtime;
367 u2time = coro_u2time;
368}
369
370#else
371
372ecb_inline void
373time_init (pTHX)
374{
375 SV **svp;
376
377 require_pv ("Time/HiRes.pm");
378
379 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
380
381 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
382 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
383
384 nvtime = INT2PTR (double (*)(), SvIV (*svp));
385
386 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
387 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
388}
389
390#endif
391
319/** lowlevel stuff **********************************************************/ 392/** lowlevel stuff **********************************************************/
320 393
321static SV * 394static SV * ecb_noinline
322coro_get_sv (pTHX_ const char *name, int create) 395coro_get_sv (pTHX_ const char *name, int create)
323{ 396{
324#if PERL_VERSION_ATLEAST (5,10,0) 397#if PERL_VERSION_ATLEAST (5,10,0)
325 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 398 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
326 get_sv (name, create); 399 get_sv (name, create);
327#endif 400#endif
328 return get_sv (name, create); 401 return get_sv (name, create);
329} 402}
330 403
331static AV * 404static AV * ecb_noinline
332coro_get_av (pTHX_ const char *name, int create) 405coro_get_av (pTHX_ const char *name, int create)
333{ 406{
334#if PERL_VERSION_ATLEAST (5,10,0) 407#if PERL_VERSION_ATLEAST (5,10,0)
335 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 408 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
336 get_av (name, create); 409 get_av (name, create);
337#endif 410#endif
338 return get_av (name, create); 411 return get_av (name, create);
339} 412}
340 413
341static HV * 414static HV * ecb_noinline
342coro_get_hv (pTHX_ const char *name, int create) 415coro_get_hv (pTHX_ const char *name, int create)
343{ 416{
344#if PERL_VERSION_ATLEAST (5,10,0) 417#if PERL_VERSION_ATLEAST (5,10,0)
345 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 418 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
346 get_hv (name, create); 419 get_hv (name, create);
347#endif 420#endif
348 return get_hv (name, create); 421 return get_hv (name, create);
349} 422}
350 423
351/* may croak */ 424ecb_inline void
352INLINE CV * 425coro_times_update (void)
353coro_sv_2cv (pTHX_ SV *sv)
354{ 426{
355 HV *st; 427#ifdef coro_clock_gettime
356 GV *gvp; 428 struct timespec ts;
357 return sv_2cv (sv, &st, &gvp, 0); 429
430 ts.tv_sec = ts.tv_nsec = 0;
431 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
432 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
433
434 ts.tv_sec = ts.tv_nsec = 0;
435 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
436 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
437#else
438 dTHX;
439 UV tv[2];
440
441 u2time (aTHX_ tv);
442 time_real [0] = tv [0];
443 time_real [1] = tv [1] * 1000;
444#endif
445}
446
447ecb_inline void
448coro_times_add (struct coro *c)
449{
450 c->t_real [1] += time_real [1];
451 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
452 c->t_real [0] += time_real [0];
453
454 c->t_cpu [1] += time_cpu [1];
455 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
456 c->t_cpu [0] += time_cpu [0];
457}
458
459ecb_inline void
460coro_times_sub (struct coro *c)
461{
462 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
463 c->t_real [1] -= time_real [1];
464 c->t_real [0] -= time_real [0];
465
466 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
467 c->t_cpu [1] -= time_cpu [1];
468 c->t_cpu [0] -= time_cpu [0];
358} 469}
359 470
360/*****************************************************************************/ 471/*****************************************************************************/
361/* magic glue */ 472/* magic glue */
362 473
363#define CORO_MAGIC_type_cv 26 474#define CORO_MAGIC_type_cv 26
364#define CORO_MAGIC_type_state PERL_MAGIC_ext 475#define CORO_MAGIC_type_state PERL_MAGIC_ext
365 476
366#define CORO_MAGIC_NN(sv, type) \ 477#define CORO_MAGIC_NN(sv, type) \
367 (expect_true (SvMAGIC (sv)->mg_type == type) \ 478 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
368 ? SvMAGIC (sv) \ 479 ? SvMAGIC (sv) \
369 : mg_find (sv, type)) 480 : mg_find (sv, type))
370 481
371#define CORO_MAGIC(sv, type) \ 482#define CORO_MAGIC(sv, type) \
372 (expect_true (SvMAGIC (sv)) \ 483 (ecb_expect_true (SvMAGIC (sv)) \
373 ? CORO_MAGIC_NN (sv, type) \ 484 ? CORO_MAGIC_NN (sv, type) \
374 : 0) 485 : 0)
375 486
376#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 487#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
377#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 488#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
378 489
379INLINE struct coro * 490ecb_inline MAGIC *
491SvSTATEhv_p (pTHX_ SV *coro)
492{
493 MAGIC *mg;
494
495 if (ecb_expect_true (
496 SvTYPE (coro) == SVt_PVHV
497 && (mg = CORO_MAGIC_state (coro))
498 && mg->mg_virtual == &coro_state_vtbl
499 ))
500 return mg;
501
502 return 0;
503}
504
505ecb_inline struct coro *
380SvSTATE_ (pTHX_ SV *coro) 506SvSTATE_ (pTHX_ SV *coro)
381{ 507{
382 HV *stash;
383 MAGIC *mg; 508 MAGIC *mg;
384 509
385 if (SvROK (coro)) 510 if (SvROK (coro))
386 coro = SvRV (coro); 511 coro = SvRV (coro);
387 512
388 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 513 mg = SvSTATEhv_p (aTHX_ coro);
514 if (!mg)
389 croak ("Coro::State object required"); 515 croak ("Coro::State object required");
390 516
391 stash = SvSTASH (coro);
392 if (expect_false (stash != coro_stash && stash != coro_state_stash))
393 {
394 /* very slow, but rare, check */
395 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
396 croak ("Coro::State object required");
397 }
398
399 mg = CORO_MAGIC_state (coro);
400 return (struct coro *)mg->mg_ptr; 517 return (struct coro *)mg->mg_ptr;
401} 518}
402 519
403#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 520#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
404 521
… …
407#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 524#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
408 525
409/*****************************************************************************/ 526/*****************************************************************************/
410/* padlist management and caching */ 527/* padlist management and caching */
411 528
412static AV * 529ecb_inline AV *
413coro_derive_padlist (pTHX_ CV *cv) 530coro_derive_padlist (pTHX_ CV *cv)
414{ 531{
415 AV *padlist = CvPADLIST (cv); 532 AV *padlist = CvPADLIST (cv);
416 AV *newpadlist, *newpad; 533 AV *newpadlist, *newpad;
417 534
… …
429 av_store (newpadlist, 1, (SV *)newpad); 546 av_store (newpadlist, 1, (SV *)newpad);
430 547
431 return newpadlist; 548 return newpadlist;
432} 549}
433 550
434static void 551ecb_inline void
435free_padlist (pTHX_ AV *padlist) 552free_padlist (pTHX_ AV *padlist)
436{ 553{
437 /* may be during global destruction */ 554 /* may be during global destruction */
438 if (!IN_DESTRUCT) 555 if (!IN_DESTRUCT)
439 { 556 {
… …
463coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 580coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464{ 581{
465 AV *padlist; 582 AV *padlist;
466 AV *av = (AV *)mg->mg_obj; 583 AV *av = (AV *)mg->mg_obj;
467 584
585 /* perl manages to free our internal AV and _then_ call us */
586 if (IN_DESTRUCT)
587 return 0;
588
468 /* casting is fun. */ 589 /* casting is fun. */
469 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 590 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
470 free_padlist (aTHX_ padlist); 591 free_padlist (aTHX_ padlist);
471 592
472 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 593 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
… …
478 0, 0, 0, 0, 599 0, 0, 0, 0,
479 coro_cv_free 600 coro_cv_free
480}; 601};
481 602
482/* the next two functions merely cache the padlists */ 603/* the next two functions merely cache the padlists */
483static void 604ecb_inline void
484get_padlist (pTHX_ CV *cv) 605get_padlist (pTHX_ CV *cv)
485{ 606{
486 MAGIC *mg = CORO_MAGIC_cv (cv); 607 MAGIC *mg = CORO_MAGIC_cv (cv);
487 AV *av; 608 AV *av;
488 609
489 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 610 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
490 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 611 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
491 else 612 else
492 { 613 {
493#if CORO_PREFER_PERL_FUNCTIONS 614#if CORO_PREFER_PERL_FUNCTIONS
494 /* this is probably cleaner? but also slower! */ 615 /* this is probably cleaner? but also slower! */
… …
501 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 622 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
502#endif 623#endif
503 } 624 }
504} 625}
505 626
506static void 627ecb_inline void
507put_padlist (pTHX_ CV *cv) 628put_padlist (pTHX_ CV *cv)
508{ 629{
509 MAGIC *mg = CORO_MAGIC_cv (cv); 630 MAGIC *mg = CORO_MAGIC_cv (cv);
510 AV *av; 631 AV *av;
511 632
512 if (expect_false (!mg)) 633 if (ecb_expect_false (!mg))
513 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 634 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
514 635
515 av = (AV *)mg->mg_obj; 636 av = (AV *)mg->mg_obj;
516 637
517 if (expect_false (AvFILLp (av) >= AvMAX (av))) 638 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
518 av_extend (av, AvFILLp (av) + 1); 639 av_extend (av, AvFILLp (av) + 1);
519 640
520 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 641 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
521} 642}
522 643
523/** load & save, init *******************************************************/ 644/** load & save, init *******************************************************/
645
646/* swap sv heads, at least logically */
647static void
648swap_svs (pTHX_ Coro__State c)
649{
650 int i;
651
652 for (i = 0; i <= AvFILLp (c->swap_sv); )
653 {
654 SV *a = AvARRAY (c->swap_sv)[i++];
655 SV *b = AvARRAY (c->swap_sv)[i++];
656
657 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
658 SV tmp;
659
660 /* swap sv_any */
661 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
662
663 /* swap sv_flags */
664 SvFLAGS (&tmp) = SvFLAGS (a);
665 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
666 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
667
668#if PERL_VERSION_ATLEAST (5,10,0)
669 /* perl 5.10 complicates this _quite_ a bit, but it also is
670 * much faster, so no quarrels here. alternatively, we could
671 * sv_upgrade to avoid this.
672 */
673 {
674 /* swap sv_u */
675 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
676
677 /* if SvANY points to the head, we need to adjust the pointers,
678 * as the pointer for a still points to b, and maybe vice versa.
679 */
680 #define svany_in_head(type) \
681 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
682
683 if (svany_in_head (SvTYPE (a)))
684 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
685
686 if (svany_in_head (SvTYPE (b)))
687 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
688 }
689#endif
690 }
691}
692
693#define SWAP_SVS(coro) \
694 if (ecb_expect_false ((coro)->swap_sv)) \
695 swap_svs (aTHX_ (coro))
696
697static void
698on_enterleave_call (pTHX_ SV *cb);
524 699
525static void 700static void
526load_perl (pTHX_ Coro__State c) 701load_perl (pTHX_ Coro__State c)
527{ 702{
528 perl_slots *slot = c->slot; 703 perl_slots *slot = c->slot;
529 c->slot = 0; 704 c->slot = 0;
530 705
531 PL_mainstack = c->mainstack; 706 PL_mainstack = c->mainstack;
532 707
533 GvSV (PL_defgv) = slot->defsv; 708#if CORO_JIT
534 GvAV (PL_defgv) = slot->defav; 709 load_perl_slots (slot);
535 GvSV (PL_errgv) = slot->errsv; 710#else
536 GvSV (irsgv) = slot->irsgv;
537 GvHV (PL_hintgv) = slot->hinthv;
538
539 #define VAR(name,type) PL_ ## name = slot->name; 711 #define VARx(name,expr,type) expr = slot->name;
540 # include "state.h" 712 # include "state.h"
541 #undef VAR 713 #undef VARx
714#endif
542 715
543 { 716 {
544 dSP; 717 dSP;
545 718
546 CV *cv; 719 CV *cv;
547 720
548 /* now do the ugly restore mess */ 721 /* now do the ugly restore mess */
549 while (expect_true (cv = (CV *)POPs)) 722 while (ecb_expect_true (cv = (CV *)POPs))
550 { 723 {
551 put_padlist (aTHX_ cv); /* mark this padlist as available */ 724 put_padlist (aTHX_ cv); /* mark this padlist as available */
552 CvDEPTH (cv) = PTR2IV (POPs); 725 CvDEPTH (cv) = PTR2IV (POPs);
553 CvPADLIST (cv) = (AV *)POPs; 726 CvPADLIST (cv) = (AV *)POPs;
554 } 727 }
… …
556 PUTBACK; 729 PUTBACK;
557 } 730 }
558 731
559 slf_frame = c->slf_frame; 732 slf_frame = c->slf_frame;
560 CORO_THROW = c->except; 733 CORO_THROW = c->except;
734
735 if (ecb_expect_false (enable_times))
736 {
737 if (ecb_expect_false (!times_valid))
738 coro_times_update ();
739
740 coro_times_sub (c);
741 }
742
743 if (ecb_expect_false (c->on_enter))
744 {
745 int i;
746
747 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
748 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
749 }
750
751 SWAP_SVS (c);
561} 752}
562 753
563static void 754static void
564save_perl (pTHX_ Coro__State c) 755save_perl (pTHX_ Coro__State c)
565{ 756{
757 SWAP_SVS (c);
758
759 if (ecb_expect_false (c->on_leave))
760 {
761 int i;
762
763 for (i = AvFILLp (c->on_leave); i >= 0; --i)
764 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
765 }
766
767 times_valid = 0;
768
769 if (ecb_expect_false (enable_times))
770 {
771 coro_times_update (); times_valid = 1;
772 coro_times_add (c);
773 }
774
566 c->except = CORO_THROW; 775 c->except = CORO_THROW;
567 c->slf_frame = slf_frame; 776 c->slf_frame = slf_frame;
568 777
569 { 778 {
570 dSP; 779 dSP;
… …
579 788
580 XPUSHs (Nullsv); 789 XPUSHs (Nullsv);
581 /* this loop was inspired by pp_caller */ 790 /* this loop was inspired by pp_caller */
582 for (;;) 791 for (;;)
583 { 792 {
584 while (expect_true (cxix >= 0)) 793 while (ecb_expect_true (cxix >= 0))
585 { 794 {
586 PERL_CONTEXT *cx = &ccstk[cxix--]; 795 PERL_CONTEXT *cx = &ccstk[cxix--];
587 796
588 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 797 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
589 { 798 {
590 CV *cv = cx->blk_sub.cv; 799 CV *cv = cx->blk_sub.cv;
591 800
592 if (expect_true (CvDEPTH (cv))) 801 if (ecb_expect_true (CvDEPTH (cv)))
593 { 802 {
594 EXTEND (SP, 3); 803 EXTEND (SP, 3);
595 PUSHs ((SV *)CvPADLIST (cv)); 804 PUSHs ((SV *)CvPADLIST (cv));
596 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 805 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
597 PUSHs ((SV *)cv); 806 PUSHs ((SV *)cv);
… …
600 get_padlist (aTHX_ cv); 809 get_padlist (aTHX_ cv);
601 } 810 }
602 } 811 }
603 } 812 }
604 813
605 if (expect_true (top_si->si_type == PERLSI_MAIN)) 814 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
606 break; 815 break;
607 816
608 top_si = top_si->si_prev; 817 top_si = top_si->si_prev;
609 ccstk = top_si->si_cxstack; 818 ccstk = top_si->si_cxstack;
610 cxix = top_si->si_cxix; 819 cxix = top_si->si_cxix;
… …
612 821
613 PUTBACK; 822 PUTBACK;
614 } 823 }
615 824
616 /* allocate some space on the context stack for our purposes */ 825 /* allocate some space on the context stack for our purposes */
617 /* we manually unroll here, as usually 2 slots is enough */ 826 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
618 if (SLOT_COUNT >= 1) CXINC;
619 if (SLOT_COUNT >= 2) CXINC;
620 if (SLOT_COUNT >= 3) CXINC;
621 { 827 {
622 int i; 828 unsigned int i;
829
623 for (i = 3; i < SLOT_COUNT; ++i) 830 for (i = 0; i < SLOT_COUNT; ++i)
624 CXINC; 831 CXINC;
625 } 832
626 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 833 cxstack_ix -= SLOT_COUNT; /* undo allocation */
834 }
627 835
628 c->mainstack = PL_mainstack; 836 c->mainstack = PL_mainstack;
629 837
630 { 838 {
631 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 839 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
632 840
633 slot->defav = GvAV (PL_defgv); 841#if CORO_JIT
634 slot->defsv = DEFSV; 842 save_perl_slots (slot);
635 slot->errsv = ERRSV; 843#else
636 slot->irsgv = GvSV (irsgv);
637 slot->hinthv = GvHV (PL_hintgv);
638
639 #define VAR(name,type) slot->name = PL_ ## name; 844 #define VARx(name,expr,type) slot->name = expr;
640 # include "state.h" 845 # include "state.h"
641 #undef VAR 846 #undef VARx
847#endif
642 } 848 }
643} 849}
644 850
645/* 851/*
646 * allocate various perl stacks. This is almost an exact copy 852 * allocate various perl stacks. This is almost an exact copy
… …
652# define coro_init_stacks(thx) init_stacks () 858# define coro_init_stacks(thx) init_stacks ()
653#else 859#else
654static void 860static void
655coro_init_stacks (pTHX) 861coro_init_stacks (pTHX)
656{ 862{
657 PL_curstackinfo = new_stackinfo(32, 8); 863 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
658 PL_curstackinfo->si_type = PERLSI_MAIN; 864 PL_curstackinfo->si_type = PERLSI_MAIN;
659 PL_curstack = PL_curstackinfo->si_stack; 865 PL_curstack = PL_curstackinfo->si_stack;
660 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 866 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
661 867
662 PL_stack_base = AvARRAY(PL_curstack); 868 PL_stack_base = AvARRAY(PL_curstack);
… …
677#endif 883#endif
678 884
679 New(54,PL_scopestack,8,I32); 885 New(54,PL_scopestack,8,I32);
680 PL_scopestack_ix = 0; 886 PL_scopestack_ix = 0;
681 PL_scopestack_max = 8; 887 PL_scopestack_max = 8;
888#if HAS_SCOPESTACK_NAME
889 New(54,PL_scopestack_name,8,const char*);
890#endif
682 891
683 New(54,PL_savestack,24,ANY); 892 New(54,PL_savestack,24,ANY);
684 PL_savestack_ix = 0; 893 PL_savestack_ix = 0;
685 PL_savestack_max = 24; 894 PL_savestack_max = 24;
686 895
… …
714 } 923 }
715 924
716 Safefree (PL_tmps_stack); 925 Safefree (PL_tmps_stack);
717 Safefree (PL_markstack); 926 Safefree (PL_markstack);
718 Safefree (PL_scopestack); 927 Safefree (PL_scopestack);
928#if HAS_SCOPESTACK_NAME
929 Safefree (PL_scopestack_name);
930#endif
719 Safefree (PL_savestack); 931 Safefree (PL_savestack);
720#if !PERL_VERSION_ATLEAST (5,10,0) 932#if !PERL_VERSION_ATLEAST (5,10,0)
721 Safefree (PL_retstack); 933 Safefree (PL_retstack);
722#endif 934#endif
723} 935}
… …
769#endif 981#endif
770 982
771/* 983/*
772 * This overrides the default magic get method of %SIG elements. 984 * This overrides the default magic get method of %SIG elements.
773 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 985 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
774 * and instead of tryign to save and restore the hash elements, we just provide 986 * and instead of trying to save and restore the hash elements (extremely slow),
775 * readback here. 987 * we just provide our own readback here.
776 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
777 * not expecting this to actually change the hook. This is a potential problem
778 * when a schedule happens then, but we ignore this.
779 */ 988 */
780static int 989static int ecb_cold
781coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 990coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782{ 991{
783 const char *s = MgPV_nolen_const (mg); 992 const char *s = MgPV_nolen_const (mg);
784 993
785 if (*s == '_') 994 if (*s == '_')
… …
789 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 998 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
790 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 999 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
791 1000
792 if (svp) 1001 if (svp)
793 { 1002 {
794 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1003 SV *ssv;
1004
1005 if (!*svp)
1006 ssv = &PL_sv_undef;
1007 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1008 ssv = sv_2mortal (newRV_inc (*svp));
1009 else
1010 ssv = *svp;
1011
1012 sv_setsv (sv, ssv);
795 return 0; 1013 return 0;
796 } 1014 }
797 } 1015 }
798 1016
799 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1017 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
800} 1018}
801 1019
802static int 1020static int ecb_cold
803coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1021coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
804{ 1022{
805 const char *s = MgPV_nolen_const (mg); 1023 const char *s = MgPV_nolen_const (mg);
806 1024
807 if (*s == '_') 1025 if (*s == '_')
… …
821 } 1039 }
822 1040
823 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1041 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
824} 1042}
825 1043
826static int 1044static int ecb_cold
827coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1045coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
828{ 1046{
829 const char *s = MgPV_nolen_const (mg); 1047 const char *s = MgPV_nolen_const (mg);
830 1048
831 if (*s == '_') 1049 if (*s == '_')
… …
836 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1054 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837 1055
838 if (svp) 1056 if (svp)
839 { 1057 {
840 SV *old = *svp; 1058 SV *old = *svp;
841 *svp = newSVsv (sv); 1059 *svp = SvOK (sv) ? newSVsv (sv) : 0;
842 SvREFCNT_dec (old); 1060 SvREFCNT_dec (old);
843 return 0; 1061 return 0;
844 } 1062 }
845 } 1063 }
846 1064
… …
864slf_check_repeat (pTHX_ struct CoroSLF *frame) 1082slf_check_repeat (pTHX_ struct CoroSLF *frame)
865{ 1083{
866 return 1; 1084 return 1;
867} 1085}
868 1086
869static UNOP coro_setup_op; 1087static UNOP init_perl_op;
870 1088
871static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1089ecb_noinline static void /* noinline to keep it out of the transfer fast path */
872coro_setup (pTHX_ struct coro *coro) 1090init_perl (pTHX_ struct coro *coro)
873{ 1091{
874 /* 1092 /*
875 * emulate part of the perl startup here. 1093 * emulate part of the perl startup here.
876 */ 1094 */
877 coro_init_stacks (aTHX); 1095 coro_init_stacks (aTHX);
… …
884 PL_comppad_name_fill = 0; 1102 PL_comppad_name_fill = 0;
885 PL_comppad_name_floor = 0; 1103 PL_comppad_name_floor = 0;
886 PL_curpm = 0; 1104 PL_curpm = 0;
887 PL_curpad = 0; 1105 PL_curpad = 0;
888 PL_localizing = 0; 1106 PL_localizing = 0;
889 PL_dirty = 0;
890 PL_restartop = 0; 1107 PL_restartop = 0;
891#if PERL_VERSION_ATLEAST (5,10,0) 1108#if PERL_VERSION_ATLEAST (5,10,0)
892 PL_parser = 0; 1109 PL_parser = 0;
893#endif 1110#endif
894 PL_hints = 0; 1111 PL_hints = 0;
895 1112
896 /* recreate the die/warn hooks */ 1113 /* recreate the die/warn hooks */
897 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1114 PL_diehook = SvREFCNT_inc (rv_diehook);
898 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1115 PL_warnhook = SvREFCNT_inc (rv_warnhook);
899 1116
900 GvSV (PL_defgv) = newSV (0); 1117 GvSV (PL_defgv) = newSV (0);
901 GvAV (PL_defgv) = coro->args; coro->args = 0; 1118 GvAV (PL_defgv) = coro->args; coro->args = 0;
902 GvSV (PL_errgv) = newSV (0); 1119 GvSV (PL_errgv) = newSV (0);
903 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1120 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
… …
924 /* this newly created coroutine might be run on an existing cctx which most 1141 /* this newly created coroutine might be run on an existing cctx which most
925 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1142 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
926 */ 1143 */
927 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1144 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
928 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1145 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1146 slf_frame.destroy = 0;
929 1147
930 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1148 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
931 coro_setup_op.op_next = PL_op; 1149 init_perl_op.op_next = PL_op;
932 coro_setup_op.op_type = OP_ENTERSUB; 1150 init_perl_op.op_type = OP_ENTERSUB;
933 coro_setup_op.op_ppaddr = pp_slf; 1151 init_perl_op.op_ppaddr = pp_slf;
934 /* no flags etc. required, as an init function won't be called */ 1152 /* no flags etc. required, as an init function won't be called */
935 1153
936 PL_op = (OP *)&coro_setup_op; 1154 PL_op = (OP *)&init_perl_op;
937 1155
938 /* copy throw, in case it was set before coro_setup */ 1156 /* copy throw, in case it was set before init_perl */
939 CORO_THROW = coro->except; 1157 CORO_THROW = coro->except;
940}
941 1158
1159 SWAP_SVS (coro);
1160
1161 if (ecb_expect_false (enable_times))
1162 {
1163 coro_times_update ();
1164 coro_times_sub (coro);
1165 }
1166}
1167
942static void 1168static void
943coro_destruct (pTHX_ struct coro *coro) 1169coro_unwind_stacks (pTHX)
944{ 1170{
945 if (!IN_DESTRUCT) 1171 if (!IN_DESTRUCT)
946 { 1172 {
947 /* restore all saved variables and stuff */ 1173 /* restore all saved variables and stuff */
948 LEAVE_SCOPE (0); 1174 LEAVE_SCOPE (0);
… …
956 POPSTACK_TO (PL_mainstack); 1182 POPSTACK_TO (PL_mainstack);
957 1183
958 /* unwind main stack */ 1184 /* unwind main stack */
959 dounwind (-1); 1185 dounwind (-1);
960 } 1186 }
1187}
961 1188
962 SvREFCNT_dec (GvSV (PL_defgv)); 1189static void
963 SvREFCNT_dec (GvAV (PL_defgv)); 1190destroy_perl (pTHX_ struct coro *coro)
964 SvREFCNT_dec (GvSV (PL_errgv)); 1191{
965 SvREFCNT_dec (PL_defoutgv); 1192 SV *svf [9];
966 SvREFCNT_dec (PL_rs);
967 SvREFCNT_dec (GvSV (irsgv));
968 SvREFCNT_dec (GvHV (PL_hintgv));
969 1193
970 SvREFCNT_dec (PL_diehook);
971 SvREFCNT_dec (PL_warnhook);
972 1194 {
1195 SV *old_current = SvRV (coro_current);
1196 struct coro *current = SvSTATE (old_current);
1197
1198 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1199
1200 save_perl (aTHX_ current);
1201
1202 /* this will cause transfer_check to croak on block*/
1203 SvRV_set (coro_current, (SV *)coro->hv);
1204
1205 load_perl (aTHX_ coro);
1206
1207 coro_unwind_stacks (aTHX);
1208
1209 /* restore swapped sv's */
1210 SWAP_SVS (coro);
1211
1212 coro_destruct_stacks (aTHX);
1213
1214 /* now save some sv's to be free'd later */
1215 svf [0] = GvSV (PL_defgv);
1216 svf [1] = (SV *)GvAV (PL_defgv);
1217 svf [2] = GvSV (PL_errgv);
1218 svf [3] = (SV *)PL_defoutgv;
1219 svf [4] = PL_rs;
1220 svf [5] = GvSV (irsgv);
1221 svf [6] = (SV *)GvHV (PL_hintgv);
1222 svf [7] = PL_diehook;
1223 svf [8] = PL_warnhook;
1224 assert (9 == sizeof (svf) / sizeof (*svf));
1225
1226 SvRV_set (coro_current, old_current);
1227
1228 load_perl (aTHX_ current);
1229 }
1230
1231 {
1232 unsigned int i;
1233
1234 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1235 SvREFCNT_dec (svf [i]);
1236
973 SvREFCNT_dec (coro->saved_deffh); 1237 SvREFCNT_dec (coro->saved_deffh);
974 SvREFCNT_dec (coro->rouse_cb); 1238 SvREFCNT_dec (coro->rouse_cb);
975 SvREFCNT_dec (coro->invoke_cb); 1239 SvREFCNT_dec (coro->invoke_cb);
976 SvREFCNT_dec (coro->invoke_av); 1240 SvREFCNT_dec (coro->invoke_av);
977 1241 }
978 coro_destruct_stacks (aTHX);
979} 1242}
980 1243
981INLINE void 1244ecb_inline void
982free_coro_mortal (pTHX) 1245free_coro_mortal (pTHX)
983{ 1246{
984 if (expect_true (coro_mortal)) 1247 if (ecb_expect_true (coro_mortal))
985 { 1248 {
986 SvREFCNT_dec (coro_mortal); 1249 SvREFCNT_dec ((SV *)coro_mortal);
987 coro_mortal = 0; 1250 coro_mortal = 0;
988 } 1251 }
989} 1252}
990 1253
991static int 1254static int
… …
1124 1387
1125 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1388 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1126} 1389}
1127 1390
1128/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1391/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1129static void NOINLINE 1392static void ecb_noinline
1130cctx_prepare (pTHX) 1393cctx_prepare (pTHX)
1131{ 1394{
1132 PL_top_env = &PL_start_env; 1395 PL_top_env = &PL_start_env;
1133 1396
1134 if (cctx_current->flags & CC_TRACE) 1397 if (cctx_current->flags & CC_TRACE)
… …
1145 slf_frame.prepare = slf_prepare_set_stacklevel; 1408 slf_frame.prepare = slf_prepare_set_stacklevel;
1146 slf_frame.check = slf_check_set_stacklevel; 1409 slf_frame.check = slf_check_set_stacklevel;
1147} 1410}
1148 1411
1149/* the tail of transfer: execute stuff we can only do after a transfer */ 1412/* the tail of transfer: execute stuff we can only do after a transfer */
1150INLINE void 1413ecb_inline void
1151transfer_tail (pTHX) 1414transfer_tail (pTHX)
1152{ 1415{
1153 free_coro_mortal (aTHX); 1416 free_coro_mortal (aTHX);
1154} 1417}
1155 1418
… …
1180 /* somebody or something will hit me for both perl_run and PL_restartop */ 1443 /* somebody or something will hit me for both perl_run and PL_restartop */
1181 PL_restartop = PL_op; 1444 PL_restartop = PL_op;
1182 perl_run (PL_curinterp); 1445 perl_run (PL_curinterp);
1183 /* 1446 /*
1184 * Unfortunately, there is no way to get at the return values of the 1447 * Unfortunately, there is no way to get at the return values of the
1185 * coro body here, as perl_run destroys these 1448 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1449 * runtime errors here, as this is just a random interpreter, not a thread.
1186 */ 1450 */
1187 1451
1188 /* 1452 /*
1189 * If perl-run returns we assume exit() was being called or the coro 1453 * If perl-run returns we assume exit() was being called or the coro
1190 * fell off the end, which seems to be the only valid (non-bug) 1454 * fell off the end, which seems to be the only valid (non-bug)
… …
1198 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1462 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1199 } 1463 }
1200} 1464}
1201 1465
1202static coro_cctx * 1466static coro_cctx *
1203cctx_new () 1467cctx_new (void)
1204{ 1468{
1205 coro_cctx *cctx; 1469 coro_cctx *cctx;
1206 1470
1207 ++cctx_count; 1471 ++cctx_count;
1208 New (0, cctx, 1, coro_cctx); 1472 New (0, cctx, 1, coro_cctx);
… …
1214 return cctx; 1478 return cctx;
1215} 1479}
1216 1480
1217/* create a new cctx only suitable as source */ 1481/* create a new cctx only suitable as source */
1218static coro_cctx * 1482static coro_cctx *
1219cctx_new_empty () 1483cctx_new_empty (void)
1220{ 1484{
1221 coro_cctx *cctx = cctx_new (); 1485 coro_cctx *cctx = cctx_new ();
1222 1486
1223 cctx->sptr = 0; 1487 cctx->sptr = 0;
1224 coro_create (&cctx->cctx, 0, 0, 0, 0); 1488 coro_create (&cctx->cctx, 0, 0, 0, 0);
… …
1226 return cctx; 1490 return cctx;
1227} 1491}
1228 1492
1229/* create a new cctx suitable as destination/running a perl interpreter */ 1493/* create a new cctx suitable as destination/running a perl interpreter */
1230static coro_cctx * 1494static coro_cctx *
1231cctx_new_run () 1495cctx_new_run (void)
1232{ 1496{
1233 coro_cctx *cctx = cctx_new (); 1497 coro_cctx *cctx = cctx_new ();
1234 void *stack_start; 1498 void *stack_start;
1235 size_t stack_size; 1499 size_t stack_size;
1236 1500
1237#if HAVE_MMAP 1501#if HAVE_MMAP
1238 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1502 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1239 /* mmap supposedly does allocate-on-write for us */ 1503 /* mmap supposedly does allocate-on-write for us */
1240 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1504 cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, 0, 0);
1241 1505
1242 if (cctx->sptr != (void *)-1) 1506 if (cctx->sptr != (void *)-1)
1243 { 1507 {
1244 #if CORO_STACKGUARD 1508 #if CORO_STACKGUARD
1245 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1509 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
… …
1277cctx_destroy (coro_cctx *cctx) 1541cctx_destroy (coro_cctx *cctx)
1278{ 1542{
1279 if (!cctx) 1543 if (!cctx)
1280 return; 1544 return;
1281 1545
1282 assert (cctx != cctx_current);//D temporary 1546 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1283 1547
1284 --cctx_count; 1548 --cctx_count;
1285 coro_destroy (&cctx->cctx); 1549 coro_destroy (&cctx->cctx);
1286 1550
1287 /* coro_transfer creates new, empty cctx's */ 1551 /* coro_transfer creates new, empty cctx's */
… …
1306#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1570#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1307 1571
1308static coro_cctx * 1572static coro_cctx *
1309cctx_get (pTHX) 1573cctx_get (pTHX)
1310{ 1574{
1311 while (expect_true (cctx_first)) 1575 while (ecb_expect_true (cctx_first))
1312 { 1576 {
1313 coro_cctx *cctx = cctx_first; 1577 coro_cctx *cctx = cctx_first;
1314 cctx_first = cctx->next; 1578 cctx_first = cctx->next;
1315 --cctx_idle; 1579 --cctx_idle;
1316 1580
1317 if (expect_true (!CCTX_EXPIRED (cctx))) 1581 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1318 return cctx; 1582 return cctx;
1319 1583
1320 cctx_destroy (cctx); 1584 cctx_destroy (cctx);
1321 } 1585 }
1322 1586
… …
1327cctx_put (coro_cctx *cctx) 1591cctx_put (coro_cctx *cctx)
1328{ 1592{
1329 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1593 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1330 1594
1331 /* free another cctx if overlimit */ 1595 /* free another cctx if overlimit */
1332 if (expect_false (cctx_idle >= cctx_max_idle)) 1596 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1333 { 1597 {
1334 coro_cctx *first = cctx_first; 1598 coro_cctx *first = cctx_first;
1335 cctx_first = first->next; 1599 cctx_first = first->next;
1336 --cctx_idle; 1600 --cctx_idle;
1337 1601
… …
1348static void 1612static void
1349transfer_check (pTHX_ struct coro *prev, struct coro *next) 1613transfer_check (pTHX_ struct coro *prev, struct coro *next)
1350{ 1614{
1351 /* TODO: throwing up here is considered harmful */ 1615 /* TODO: throwing up here is considered harmful */
1352 1616
1353 if (expect_true (prev != next)) 1617 if (ecb_expect_true (prev != next))
1354 { 1618 {
1355 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1619 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1356 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); 1620 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1357 1621
1358 if (expect_false (next->flags & CF_RUNNING)) 1622 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1359 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1360
1361 if (expect_false (next->flags & CF_DESTROYED))
1362 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1623 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1363 1624
1364#if !PERL_VERSION_ATLEAST (5,10,0) 1625#if !PERL_VERSION_ATLEAST (5,10,0)
1365 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1626 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1366 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1627 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1367#endif 1628#endif
1368 } 1629 }
1369} 1630}
1370 1631
1371/* always use the TRANSFER macro */ 1632/* always use the TRANSFER macro */
1372static void NOINLINE /* noinline so we have a fixed stackframe */ 1633static void ecb_noinline /* noinline so we have a fixed stackframe */
1373transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1634transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1374{ 1635{
1375 dSTACKLEVEL; 1636 dSTACKLEVEL;
1376 1637
1377 /* sometimes transfer is only called to set idle_sp */ 1638 /* sometimes transfer is only called to set idle_sp */
1378 if (expect_false (!prev)) 1639 if (ecb_expect_false (!prev))
1379 { 1640 {
1380 cctx_current->idle_sp = STACKLEVEL; 1641 cctx_current->idle_sp = STACKLEVEL;
1381 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1642 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1382 } 1643 }
1383 else if (expect_true (prev != next)) 1644 else if (ecb_expect_true (prev != next))
1384 { 1645 {
1385 coro_cctx *cctx_prev; 1646 coro_cctx *cctx_prev;
1386 1647
1387 if (expect_false (prev->flags & CF_NEW)) 1648 if (ecb_expect_false (prev->flags & CF_NEW))
1388 { 1649 {
1389 /* create a new empty/source context */ 1650 /* create a new empty/source context */
1390 prev->flags &= ~CF_NEW; 1651 prev->flags &= ~CF_NEW;
1391 prev->flags |= CF_RUNNING; 1652 prev->flags |= CF_RUNNING;
1392 } 1653 }
… …
1395 next->flags |= CF_RUNNING; 1656 next->flags |= CF_RUNNING;
1396 1657
1397 /* first get rid of the old state */ 1658 /* first get rid of the old state */
1398 save_perl (aTHX_ prev); 1659 save_perl (aTHX_ prev);
1399 1660
1400 if (expect_false (next->flags & CF_NEW)) 1661 if (ecb_expect_false (next->flags & CF_NEW))
1401 { 1662 {
1402 /* need to start coroutine */ 1663 /* need to start coroutine */
1403 next->flags &= ~CF_NEW; 1664 next->flags &= ~CF_NEW;
1404 /* setup coroutine call */ 1665 /* setup coroutine call */
1405 coro_setup (aTHX_ next); 1666 init_perl (aTHX_ next);
1406 } 1667 }
1407 else 1668 else
1408 load_perl (aTHX_ next); 1669 load_perl (aTHX_ next);
1409 1670
1410 assert (!prev->cctx);//D temporary
1411
1412 /* possibly untie and reuse the cctx */ 1671 /* possibly untie and reuse the cctx */
1413 if (expect_true ( 1672 if (ecb_expect_true (
1414 cctx_current->idle_sp == STACKLEVEL 1673 cctx_current->idle_sp == STACKLEVEL
1415 && !(cctx_current->flags & CC_TRACE) 1674 && !(cctx_current->flags & CC_TRACE)
1416 && !force_cctx 1675 && !force_cctx
1417 )) 1676 ))
1418 { 1677 {
1419 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1678 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1420 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1679 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1421 1680
1422 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1681 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1423 /* without this the next cctx_get might destroy the running cctx while still in use */ 1682 /* without this the next cctx_get might destroy the running cctx while still in use */
1424 if (expect_false (CCTX_EXPIRED (cctx_current))) 1683 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1425 if (expect_true (!next->cctx)) 1684 if (ecb_expect_true (!next->cctx))
1426 next->cctx = cctx_get (aTHX); 1685 next->cctx = cctx_get (aTHX);
1427 1686
1428 cctx_put (cctx_current); 1687 cctx_put (cctx_current);
1429 } 1688 }
1430 else 1689 else
1431 prev->cctx = cctx_current; 1690 prev->cctx = cctx_current;
1432 1691
1433 ++next->usecount; 1692 ++next->usecount;
1434 1693
1435 cctx_prev = cctx_current; 1694 cctx_prev = cctx_current;
1436 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1695 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1437 1696
1438 next->cctx = 0; 1697 next->cctx = 0;
1439 1698
1440 if (expect_false (cctx_prev != cctx_current)) 1699 if (ecb_expect_false (cctx_prev != cctx_current))
1441 { 1700 {
1442 cctx_prev->top_env = PL_top_env; 1701 cctx_prev->top_env = PL_top_env;
1443 PL_top_env = cctx_current->top_env; 1702 PL_top_env = cctx_current->top_env;
1444 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1703 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1445 } 1704 }
… …
1451#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1710#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1452#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1711#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1453 1712
1454/** high level stuff ********************************************************/ 1713/** high level stuff ********************************************************/
1455 1714
1715/* this function is actually Coro, not Coro::State, but we call it from here */
1716/* because it is convenient - but it hasn't been declared yet for that reason */
1456static int 1717static void
1718coro_call_on_destroy (pTHX_ struct coro *coro);
1719
1720static void
1457coro_state_destroy (pTHX_ struct coro *coro) 1721coro_state_destroy (pTHX_ struct coro *coro)
1458{ 1722{
1459 if (coro->flags & CF_DESTROYED) 1723 if (coro->flags & CF_ZOMBIE)
1460 return 0; 1724 return;
1461 1725
1462 if (coro->on_destroy)
1463 coro->on_destroy (aTHX_ coro); 1726 slf_destroy (aTHX_ coro);
1464 1727
1465 coro->flags |= CF_DESTROYED; 1728 coro->flags |= CF_ZOMBIE;
1466 1729
1467 if (coro->flags & CF_READY) 1730 if (coro->flags & CF_READY)
1468 { 1731 {
1469 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1732 /* reduce nready, as destroying a ready coro effectively unreadies it */
1470 /* alternative: look through all ready queues and remove the coro */ 1733 /* alternative: look through all ready queues and remove the coro */
1471 --coro_nready; 1734 --coro_nready;
1472 } 1735 }
1473 else 1736 else
1474 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1737 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1475 1738
1476 if (coro->mainstack && coro->mainstack != main_mainstack) 1739 if (coro->next) coro->next->prev = coro->prev;
1477 { 1740 if (coro->prev) coro->prev->next = coro->next;
1478 struct coro temp; 1741 if (coro == coro_first) coro_first = coro->next;
1479 1742
1480 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1743 if (coro->mainstack
1481 1744 && coro->mainstack != main_mainstack
1482 save_perl (aTHX_ &temp); 1745 && coro->slot
1746 && !PL_dirty)
1483 load_perl (aTHX_ coro); 1747 destroy_perl (aTHX_ coro);
1484
1485 coro_destruct (aTHX_ coro);
1486
1487 load_perl (aTHX_ &temp);
1488
1489 coro->slot = 0;
1490 }
1491 1748
1492 cctx_destroy (coro->cctx); 1749 cctx_destroy (coro->cctx);
1493 SvREFCNT_dec (coro->startcv); 1750 SvREFCNT_dec (coro->startcv);
1494 SvREFCNT_dec (coro->args); 1751 SvREFCNT_dec (coro->args);
1752 SvREFCNT_dec (coro->swap_sv);
1495 SvREFCNT_dec (CORO_THROW); 1753 SvREFCNT_dec (CORO_THROW);
1496 1754
1497 if (coro->next) coro->next->prev = coro->prev; 1755 coro_call_on_destroy (aTHX_ coro);
1498 if (coro->prev) coro->prev->next = coro->next;
1499 if (coro == coro_first) coro_first = coro->next;
1500 1756
1501 return 1; 1757 /* more destruction mayhem in coro_state_free */
1502} 1758}
1503 1759
1504static int 1760static int
1505coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1761coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1506{ 1762{
1507 struct coro *coro = (struct coro *)mg->mg_ptr; 1763 struct coro *coro = (struct coro *)mg->mg_ptr;
1508 mg->mg_ptr = 0; 1764 mg->mg_ptr = 0;
1509 1765
1510 coro->hv = 0;
1511
1512 if (--coro->refcnt < 0)
1513 {
1514 coro_state_destroy (aTHX_ coro); 1766 coro_state_destroy (aTHX_ coro);
1767 SvREFCNT_dec (coro->on_destroy);
1768 SvREFCNT_dec (coro->status);
1769
1515 Safefree (coro); 1770 Safefree (coro);
1516 }
1517 1771
1518 return 0; 1772 return 0;
1519} 1773}
1520 1774
1521static int 1775static int ecb_cold
1522coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1776coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1523{ 1777{
1524 struct coro *coro = (struct coro *)mg->mg_ptr; 1778 /* called when perl clones the current process the slow way (windows process emulation) */
1525 1779 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1526 ++coro->refcnt; 1780 mg->mg_ptr = 0;
1781 mg->mg_virtual = 0;
1527 1782
1528 return 0; 1783 return 0;
1529} 1784}
1530 1785
1531static MGVTBL coro_state_vtbl = { 1786static MGVTBL coro_state_vtbl = {
… …
1554 1809
1555 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1810 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1556 TRANSFER (ta, 1); 1811 TRANSFER (ta, 1);
1557} 1812}
1558 1813
1559/*****************************************************************************/
1560/* gensub: simple closure generation utility */
1561
1562#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1563
1564/* create a closure from XS, returns a code reference */
1565/* the arg can be accessed via GENSUB_ARG from the callback */
1566/* the callback must use dXSARGS/XSRETURN */
1567static SV *
1568gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1569{
1570 CV *cv = (CV *)newSV (0);
1571
1572 sv_upgrade ((SV *)cv, SVt_PVCV);
1573
1574 CvANON_on (cv);
1575 CvISXSUB_on (cv);
1576 CvXSUB (cv) = xsub;
1577 GENSUB_ARG = arg;
1578
1579 return newRV_noinc ((SV *)cv);
1580}
1581
1582/** Coro ********************************************************************/ 1814/** Coro ********************************************************************/
1583 1815
1584INLINE void 1816ecb_inline void
1585coro_enq (pTHX_ struct coro *coro) 1817coro_enq (pTHX_ struct coro *coro)
1586{ 1818{
1587 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1819 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1588}
1589 1820
1590INLINE SV * 1821 SvREFCNT_inc_NN (coro->hv);
1822
1823 coro->next_ready = 0;
1824 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1825 ready [1] = coro;
1826}
1827
1828ecb_inline struct coro *
1591coro_deq (pTHX) 1829coro_deq (pTHX)
1592{ 1830{
1593 int prio; 1831 int prio;
1594 1832
1595 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1833 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1596 if (AvFILLp (coro_ready [prio]) >= 0) 1834 {
1597 return av_shift (coro_ready [prio]); 1835 struct coro **ready = coro_ready [prio];
1836
1837 if (ready [0])
1838 {
1839 struct coro *coro = ready [0];
1840 ready [0] = coro->next_ready;
1841 return coro;
1842 }
1843 }
1598 1844
1599 return 0; 1845 return 0;
1846}
1847
1848static void
1849invoke_sv_ready_hook_helper (void)
1850{
1851 dTHX;
1852 dSP;
1853
1854 ENTER;
1855 SAVETMPS;
1856
1857 PUSHMARK (SP);
1858 PUTBACK;
1859 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1860
1861 FREETMPS;
1862 LEAVE;
1600} 1863}
1601 1864
1602static int 1865static int
1603api_ready (pTHX_ SV *coro_sv) 1866api_ready (pTHX_ SV *coro_sv)
1604{ 1867{
1605 struct coro *coro;
1606 SV *sv_hook;
1607 void (*xs_hook)(void);
1608
1609 coro = SvSTATE (coro_sv); 1868 struct coro *coro = SvSTATE (coro_sv);
1610 1869
1611 if (coro->flags & CF_READY) 1870 if (coro->flags & CF_READY)
1612 return 0; 1871 return 0;
1613 1872
1614 coro->flags |= CF_READY; 1873 coro->flags |= CF_READY;
1615 1874
1616 sv_hook = coro_nready ? 0 : coro_readyhook;
1617 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1618
1619 coro_enq (aTHX_ coro); 1875 coro_enq (aTHX_ coro);
1620 ++coro_nready;
1621 1876
1622 if (sv_hook) 1877 if (!coro_nready++)
1623 { 1878 if (coroapi.readyhook)
1624 dSP; 1879 coroapi.readyhook ();
1625
1626 ENTER;
1627 SAVETMPS;
1628
1629 PUSHMARK (SP);
1630 PUTBACK;
1631 call_sv (sv_hook, G_VOID | G_DISCARD);
1632
1633 FREETMPS;
1634 LEAVE;
1635 }
1636
1637 if (xs_hook)
1638 xs_hook ();
1639 1880
1640 return 1; 1881 return 1;
1641} 1882}
1642 1883
1643static int 1884static int
… …
1645{ 1886{
1646 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1887 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1647} 1888}
1648 1889
1649/* expects to own a reference to next->hv */ 1890/* expects to own a reference to next->hv */
1650INLINE void 1891ecb_inline void
1651prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1892prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1652{ 1893{
1653 SV *prev_sv = SvRV (coro_current); 1894 SV *prev_sv = SvRV (coro_current);
1654 1895
1655 ta->prev = SvSTATE_hv (prev_sv); 1896 ta->prev = SvSTATE_hv (prev_sv);
… …
1666static void 1907static void
1667prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1908prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1668{ 1909{
1669 for (;;) 1910 for (;;)
1670 { 1911 {
1671 SV *next_sv = coro_deq (aTHX); 1912 struct coro *next = coro_deq (aTHX);
1672 1913
1673 if (expect_true (next_sv)) 1914 if (ecb_expect_true (next))
1674 { 1915 {
1675 struct coro *next = SvSTATE_hv (next_sv);
1676
1677 /* cannot transfer to destroyed coros, skip and look for next */ 1916 /* cannot transfer to destroyed coros, skip and look for next */
1678 if (expect_false (next->flags & CF_DESTROYED)) 1917 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1679 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1918 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1680 else 1919 else
1681 { 1920 {
1682 next->flags &= ~CF_READY; 1921 next->flags &= ~CF_READY;
1683 --coro_nready; 1922 --coro_nready;
1684 1923
… …
1690 { 1929 {
1691 /* nothing to schedule: call the idle handler */ 1930 /* nothing to schedule: call the idle handler */
1692 if (SvROK (sv_idle) 1931 if (SvROK (sv_idle)
1693 && SvOBJECT (SvRV (sv_idle))) 1932 && SvOBJECT (SvRV (sv_idle)))
1694 { 1933 {
1934 if (SvRV (sv_idle) == SvRV (coro_current))
1935 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1936
1695 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1937 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1696 api_ready (aTHX_ SvRV (sv_idle)); 1938 api_ready (aTHX_ SvRV (sv_idle));
1697 --coro_nready; 1939 --coro_nready;
1698 } 1940 }
1699 else 1941 else
1700 { 1942 {
1943 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1701 dSP; 1944 dSP;
1702 1945
1703 ENTER; 1946 ENTER;
1704 SAVETMPS; 1947 SAVETMPS;
1705 1948
… …
1712 } 1955 }
1713 } 1956 }
1714 } 1957 }
1715} 1958}
1716 1959
1717INLINE void 1960ecb_inline void
1718prepare_cede (pTHX_ struct coro_transfer_args *ta) 1961prepare_cede (pTHX_ struct coro_transfer_args *ta)
1719{ 1962{
1720 api_ready (aTHX_ coro_current); 1963 api_ready (aTHX_ coro_current);
1721 prepare_schedule (aTHX_ ta); 1964 prepare_schedule (aTHX_ ta);
1722} 1965}
1723 1966
1724INLINE void 1967ecb_inline void
1725prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1968prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1726{ 1969{
1727 SV *prev = SvRV (coro_current); 1970 SV *prev = SvRV (coro_current);
1728 1971
1729 if (coro_nready) 1972 if (coro_nready)
… …
1759{ 2002{
1760 struct coro_transfer_args ta; 2003 struct coro_transfer_args ta;
1761 2004
1762 prepare_cede (aTHX_ &ta); 2005 prepare_cede (aTHX_ &ta);
1763 2006
1764 if (expect_true (ta.prev != ta.next)) 2007 if (ecb_expect_true (ta.prev != ta.next))
1765 { 2008 {
1766 TRANSFER (ta, 1); 2009 TRANSFER (ta, 1);
1767 return 1; 2010 return 1;
1768 } 2011 }
1769 else 2012 else
… …
1812 coro->slot->runops = RUNOPS_DEFAULT; 2055 coro->slot->runops = RUNOPS_DEFAULT;
1813 } 2056 }
1814} 2057}
1815 2058
1816static void 2059static void
2060coro_push_av (pTHX_ AV *av, I32 gimme_v)
2061{
2062 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2063 {
2064 dSP;
2065
2066 if (gimme_v == G_SCALAR)
2067 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2068 else
2069 {
2070 int i;
2071 EXTEND (SP, AvFILLp (av) + 1);
2072
2073 for (i = 0; i <= AvFILLp (av); ++i)
2074 PUSHs (AvARRAY (av)[i]);
2075 }
2076
2077 PUTBACK;
2078 }
2079}
2080
2081static void
2082coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2083{
2084 if (!coro->on_destroy)
2085 coro->on_destroy = newAV ();
2086
2087 av_push (coro->on_destroy, cb);
2088}
2089
2090static void
2091slf_destroy_join (pTHX_ struct CoroSLF *frame)
2092{
2093 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2094}
2095
2096static int
2097slf_check_join (pTHX_ struct CoroSLF *frame)
2098{
2099 struct coro *coro = (struct coro *)frame->data;
2100
2101 if (!coro->status)
2102 return 1;
2103
2104 frame->destroy = 0;
2105
2106 coro_push_av (aTHX_ coro->status, GIMME_V);
2107
2108 SvREFCNT_dec ((SV *)coro->hv);
2109
2110 return 0;
2111}
2112
2113static void
2114slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2115{
2116 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2117
2118 if (items > 1)
2119 croak ("join called with too many arguments");
2120
2121 if (coro->status)
2122 frame->prepare = prepare_nop;
2123 else
2124 {
2125 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2126 frame->prepare = prepare_schedule;
2127 }
2128
2129 frame->check = slf_check_join;
2130 frame->destroy = slf_destroy_join;
2131 frame->data = (void *)coro;
2132 SvREFCNT_inc (coro->hv);
2133}
2134
2135static void
1817coro_call_on_destroy (pTHX_ struct coro *coro) 2136coro_call_on_destroy (pTHX_ struct coro *coro)
1818{ 2137{
1819 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2138 AV *od = coro->on_destroy;
1820 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1821 2139
1822 if (on_destroyp) 2140 if (!od)
1823 { 2141 return;
1824 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1825 2142
1826 while (AvFILLp (on_destroy) >= 0) 2143 while (AvFILLp (od) >= 0)
2144 {
2145 SV *cb = sv_2mortal (av_pop (od));
2146
2147 /* coro hv's (and only hv's at the moment) are supported as well */
2148 if (SvSTATEhv_p (aTHX_ cb))
2149 api_ready (aTHX_ cb);
2150 else
1827 { 2151 {
1828 dSP; /* don't disturb outer sp */ 2152 dSP; /* don't disturb outer sp */
1829 SV *cb = av_pop (on_destroy);
1830
1831 PUSHMARK (SP); 2153 PUSHMARK (SP);
1832 2154
1833 if (statusp) 2155 if (coro->status)
1834 { 2156 {
1835 int i; 2157 PUTBACK;
1836 AV *status = (AV *)SvRV (*statusp); 2158 coro_push_av (aTHX_ coro->status, G_ARRAY);
1837 EXTEND (SP, AvFILLp (status) + 1); 2159 SPAGAIN;
1838
1839 for (i = 0; i <= AvFILLp (status); ++i)
1840 PUSHs (AvARRAY (status)[i]);
1841 } 2160 }
1842 2161
1843 PUTBACK; 2162 PUTBACK;
1844 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2163 call_sv (cb, G_VOID | G_DISCARD);
1845 } 2164 }
1846 } 2165 }
1847} 2166}
1848 2167
1849static void 2168static void
1850slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2169coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1851{ 2170{
2171 AV *av;
2172
2173 if (coro->status)
2174 {
2175 av = coro->status;
2176 av_clear (av);
2177 }
2178 else
2179 av = coro->status = newAV ();
2180
2181 /* items are actually not so common, so optimise for this case */
2182 if (items)
2183 {
1852 int i; 2184 int i;
1853 HV *hv = (HV *)SvRV (coro_current);
1854 AV *av = newAV ();
1855 2185
1856 av_extend (av, items - 1); 2186 av_extend (av, items - 1);
2187
1857 for (i = 0; i < items; ++i) 2188 for (i = 0; i < items; ++i)
1858 av_push (av, SvREFCNT_inc_NN (arg [i])); 2189 av_push (av, SvREFCNT_inc_NN (arg [i]));
2190 }
2191}
1859 2192
1860 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2193static void
1861 2194slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2195{
1862 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2196 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1863 api_ready (aTHX_ sv_manager); 2197 api_ready (aTHX_ sv_manager);
1864 2198
1865 frame->prepare = prepare_schedule; 2199 frame->prepare = prepare_schedule;
1866 frame->check = slf_check_repeat; 2200 frame->check = slf_check_repeat;
2201
2202 /* as a minor optimisation, we could unwind all stacks here */
2203 /* but that puts extra pressure on pp_slf, and is not worth much */
2204 /*coro_unwind_stacks (aTHX);*/
2205}
2206
2207static void
2208slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2209{
2210 HV *coro_hv = (HV *)SvRV (coro_current);
2211
2212 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2213 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2214}
2215
2216static void
2217slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2218{
2219 HV *coro_hv;
2220 struct coro *coro;
2221
2222 if (items <= 0)
2223 croak ("Coro::cancel called without coro object,");
2224
2225 coro = SvSTATE (arg [0]);
2226 coro_hv = coro->hv;
2227
2228 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2229
2230 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2231 {
2232 /* coro currently busy cancelling something, so just notify it */
2233 coro->slf_frame.data = (void *)coro;
2234
2235 frame->prepare = prepare_nop;
2236 frame->check = slf_check_nop;
2237 }
2238 else if (coro_hv == (HV *)SvRV (coro_current))
2239 {
2240 /* cancelling the current coro is allowed, and equals terminate */
2241 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2242 }
2243 else
2244 {
2245 struct coro *self = SvSTATE_current;
2246
2247 /* otherwise we cancel directly, purely for speed reasons
2248 * unfortunately, this requires some magic trickery, as
2249 * somebody else could cancel us, so we have to fight the cancellation.
2250 * this is ugly, and hopefully fully worth the extra speed.
2251 * besides, I can't get the slow-but-safe version working...
2252 */
2253 slf_frame.data = 0;
2254 self->flags |= CF_NOCANCEL;
2255 coro_state_destroy (aTHX_ coro);
2256 self->flags &= ~CF_NOCANCEL;
2257
2258 if (slf_frame.data)
2259 {
2260 /* while we were busy we have been cancelled, so terminate */
2261 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2262 }
2263 else
2264 {
2265 frame->prepare = prepare_nop;
2266 frame->check = slf_check_nop;
2267 }
2268 }
2269}
2270
2271static int
2272slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2273{
2274 frame->prepare = 0;
2275 coro_unwind_stacks (aTHX);
2276
2277 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2278
2279 return 1;
2280}
2281
2282static int
2283safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2284{
2285 if (coro->cctx)
2286 croak ("coro inside C callback, unable to cancel at this time, caught");
2287
2288 if (coro->flags & CF_NEW)
2289 {
2290 coro_set_status (aTHX_ coro, arg, items);
2291 coro_state_destroy (aTHX_ coro);
2292 }
2293 else
2294 {
2295 if (!coro->slf_frame.prepare)
2296 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2297
2298 slf_destroy (aTHX_ coro);
2299
2300 coro_set_status (aTHX_ coro, arg, items);
2301 coro->slf_frame.prepare = prepare_nop;
2302 coro->slf_frame.check = slf_check_safe_cancel;
2303
2304 api_ready (aTHX_ (SV *)coro->hv);
2305 }
2306
2307 return 1;
1867} 2308}
1868 2309
1869/*****************************************************************************/ 2310/*****************************************************************************/
1870/* async pool handler */ 2311/* async pool handler */
1871 2312
… …
1902slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2343slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1903{ 2344{
1904 HV *hv = (HV *)SvRV (coro_current); 2345 HV *hv = (HV *)SvRV (coro_current);
1905 struct coro *coro = SvSTATE_hv ((SV *)hv); 2346 struct coro *coro = SvSTATE_hv ((SV *)hv);
1906 2347
1907 if (expect_true (coro->saved_deffh)) 2348 if (ecb_expect_true (coro->saved_deffh))
1908 { 2349 {
1909 /* subsequent iteration */ 2350 /* subsequent iteration */
1910 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2351 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1911 coro->saved_deffh = 0; 2352 coro->saved_deffh = 0;
1912 2353
1913 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2354 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1914 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2355 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1915 { 2356 {
1916 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2357 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1917 coro->invoke_av = newAV (); 2358 return;
1918
1919 frame->prepare = prepare_nop;
1920 } 2359 }
1921 else 2360 else
1922 { 2361 {
1923 av_clear (GvAV (PL_defgv)); 2362 av_clear (GvAV (PL_defgv));
1924 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2363 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1949 2388
1950static void 2389static void
1951coro_rouse_callback (pTHX_ CV *cv) 2390coro_rouse_callback (pTHX_ CV *cv)
1952{ 2391{
1953 dXSARGS; 2392 dXSARGS;
1954 SV *data = (SV *)GENSUB_ARG; 2393 SV *data = (SV *)S_GENSUB_ARG;
1955 2394
1956 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2395 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1957 { 2396 {
1958 /* first call, set args */ 2397 /* first call, set args */
2398 SV *coro = SvRV (data);
1959 AV *av = newAV (); 2399 AV *av = newAV ();
1960 SV *coro = SvRV (data);
1961 2400
1962 SvRV_set (data, (SV *)av); 2401 SvRV_set (data, (SV *)av);
1963 api_ready (aTHX_ coro);
1964 SvREFCNT_dec (coro);
1965 2402
1966 /* better take a full copy of the arguments */ 2403 /* better take a full copy of the arguments */
1967 while (items--) 2404 while (items--)
1968 av_store (av, items, newSVsv (ST (items))); 2405 av_store (av, items, newSVsv (ST (items)));
2406
2407 api_ready (aTHX_ coro);
2408 SvREFCNT_dec (coro);
1969 } 2409 }
1970 2410
1971 XSRETURN_EMPTY; 2411 XSRETURN_EMPTY;
1972} 2412}
1973 2413
… …
1990 2430
1991 EXTEND (SP, AvFILLp (av) + 1); 2431 EXTEND (SP, AvFILLp (av) + 1);
1992 for (i = 0; i <= AvFILLp (av); ++i) 2432 for (i = 0; i <= AvFILLp (av); ++i)
1993 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2433 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1994 2434
1995 /* we have stolen the elements, so ste length to zero and free */ 2435 /* we have stolen the elements, so set length to zero and free */
1996 AvFILLp (av) = -1; 2436 AvFILLp (av) = -1;
1997 av_undef (av); 2437 av_undef (av);
1998 2438
1999 PUTBACK; 2439 PUTBACK;
2000 } 2440 }
… …
2024 || SvTYPE (SvRV (cb)) != SVt_PVCV 2464 || SvTYPE (SvRV (cb)) != SVt_PVCV
2025 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2465 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2026 croak ("Coro::rouse_wait called with illegal callback argument,"); 2466 croak ("Coro::rouse_wait called with illegal callback argument,");
2027 2467
2028 { 2468 {
2029 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2469 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2030 SV *data = (SV *)GENSUB_ARG; 2470 SV *data = (SV *)S_GENSUB_ARG;
2031 2471
2032 frame->data = (void *)data; 2472 frame->data = (void *)data;
2033 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2473 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2034 frame->check = slf_check_rouse_wait; 2474 frame->check = slf_check_rouse_wait;
2035 } 2475 }
… …
2039coro_new_rouse_cb (pTHX) 2479coro_new_rouse_cb (pTHX)
2040{ 2480{
2041 HV *hv = (HV *)SvRV (coro_current); 2481 HV *hv = (HV *)SvRV (coro_current);
2042 struct coro *coro = SvSTATE_hv (hv); 2482 struct coro *coro = SvSTATE_hv (hv);
2043 SV *data = newRV_inc ((SV *)hv); 2483 SV *data = newRV_inc ((SV *)hv);
2044 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2484 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2045 2485
2046 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2486 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2047 SvREFCNT_dec (data); /* magicext increases the refcount */ 2487 SvREFCNT_dec (data); /* magicext increases the refcount */
2048 2488
2049 SvREFCNT_dec (coro->rouse_cb); 2489 SvREFCNT_dec (coro->rouse_cb);
… …
2146static void 2586static void
2147slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2587slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2148{ 2588{
2149 frame->prepare = prepare_cede_notself; 2589 frame->prepare = prepare_cede_notself;
2150 frame->check = slf_check_nop; 2590 frame->check = slf_check_nop;
2591}
2592
2593/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2594static void
2595slf_destroy (pTHX_ struct coro *coro)
2596{
2597 /* this callback is reserved for slf functions needing to do cleanup */
2598 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2599 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2600
2601 /*
2602 * The on_destroy above most likely is from an SLF call.
2603 * Since by definition the SLF call will not finish when we destroy
2604 * the coro, we will have to force-finish it here, otherwise
2605 * cleanup functions cannot call SLF functions.
2606 */
2607 coro->slf_frame.prepare = 0;
2151} 2608}
2152 2609
2153/* 2610/*
2154 * these not obviously related functions are all rolled into one 2611 * these not obviously related functions are all rolled into one
2155 * function to increase chances that they all will call transfer with the same 2612 * function to increase chances that they all will call transfer with the same
… …
2162 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2619 I32 checkmark; /* mark SP to see how many elements check has pushed */
2163 2620
2164 /* set up the slf frame, unless it has already been set-up */ 2621 /* set up the slf frame, unless it has already been set-up */
2165 /* the latter happens when a new coro has been started */ 2622 /* the latter happens when a new coro has been started */
2166 /* or when a new cctx was attached to an existing coroutine */ 2623 /* or when a new cctx was attached to an existing coroutine */
2167 if (expect_true (!slf_frame.prepare)) 2624 if (ecb_expect_true (!slf_frame.prepare))
2168 { 2625 {
2169 /* first iteration */ 2626 /* first iteration */
2170 dSP; 2627 dSP;
2171 SV **arg = PL_stack_base + TOPMARK + 1; 2628 SV **arg = PL_stack_base + TOPMARK + 1;
2172 int items = SP - arg; /* args without function object */ 2629 int items = SP - arg; /* args without function object */
… …
2213 while (slf_frame.check (aTHX_ &slf_frame)); 2670 while (slf_frame.check (aTHX_ &slf_frame));
2214 2671
2215 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2672 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2216 2673
2217 /* exception handling */ 2674 /* exception handling */
2218 if (expect_false (CORO_THROW)) 2675 if (ecb_expect_false (CORO_THROW))
2219 { 2676 {
2220 SV *exception = sv_2mortal (CORO_THROW); 2677 SV *exception = sv_2mortal (CORO_THROW);
2221 2678
2222 CORO_THROW = 0; 2679 CORO_THROW = 0;
2223 sv_setsv (ERRSV, exception); 2680 sv_setsv (ERRSV, exception);
2224 croak (0); 2681 croak (0);
2225 } 2682 }
2226 2683
2227 /* return value handling - mostly like entersub */ 2684 /* return value handling - mostly like entersub */
2228 /* make sure we put something on the stack in scalar context */ 2685 /* make sure we put something on the stack in scalar context */
2229 if (GIMME_V == G_SCALAR) 2686 if (GIMME_V == G_SCALAR
2687 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2230 { 2688 {
2231 dSP; 2689 dSP;
2232 SV **bot = PL_stack_base + checkmark; 2690 SV **bot = PL_stack_base + checkmark;
2233 2691
2234 if (sp == bot) /* too few, push undef */ 2692 if (sp == bot) /* too few, push undef */
2235 bot [1] = &PL_sv_undef; 2693 bot [1] = &PL_sv_undef;
2236 else if (sp != bot + 1) /* too many, take last one */ 2694 else /* too many, take last one */
2237 bot [1] = *sp; 2695 bot [1] = *sp;
2238 2696
2239 SP = bot + 1; 2697 SP = bot + 1;
2240 2698
2241 PUTBACK; 2699 PUTBACK;
… …
2274 if (PL_op->op_flags & OPf_STACKED) 2732 if (PL_op->op_flags & OPf_STACKED)
2275 { 2733 {
2276 if (items > slf_arga) 2734 if (items > slf_arga)
2277 { 2735 {
2278 slf_arga = items; 2736 slf_arga = items;
2279 free (slf_argv); 2737 Safefree (slf_argv);
2280 slf_argv = malloc (slf_arga * sizeof (SV *)); 2738 New (0, slf_argv, slf_arga, SV *);
2281 } 2739 }
2282 2740
2283 slf_argc = items; 2741 slf_argc = items;
2284 2742
2285 for (i = 0; i < items; ++i) 2743 for (i = 0; i < items; ++i)
… …
2290 2748
2291 PL_op->op_ppaddr = pp_slf; 2749 PL_op->op_ppaddr = pp_slf;
2292 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2750 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2293 2751
2294 PL_op = (OP *)&slf_restore; 2752 PL_op = (OP *)&slf_restore;
2753}
2754
2755/*****************************************************************************/
2756/* dynamic wind */
2757
2758static void
2759on_enterleave_call (pTHX_ SV *cb)
2760{
2761 dSP;
2762
2763 PUSHSTACK;
2764
2765 PUSHMARK (SP);
2766 PUTBACK;
2767 call_sv (cb, G_VOID | G_DISCARD);
2768 SPAGAIN;
2769
2770 POPSTACK;
2771}
2772
2773static SV *
2774coro_avp_pop_and_free (pTHX_ AV **avp)
2775{
2776 AV *av = *avp;
2777 SV *res = av_pop (av);
2778
2779 if (AvFILLp (av) < 0)
2780 {
2781 *avp = 0;
2782 SvREFCNT_dec (av);
2783 }
2784
2785 return res;
2786}
2787
2788static void
2789coro_pop_on_enter (pTHX_ void *coro)
2790{
2791 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2792 SvREFCNT_dec (cb);
2793}
2794
2795static void
2796coro_pop_on_leave (pTHX_ void *coro)
2797{
2798 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2799 on_enterleave_call (aTHX_ sv_2mortal (cb));
2295} 2800}
2296 2801
2297/*****************************************************************************/ 2802/*****************************************************************************/
2298/* PerlIO::cede */ 2803/* PerlIO::cede */
2299 2804
… …
2301{ 2806{
2302 PerlIOBuf base; 2807 PerlIOBuf base;
2303 NV next, every; 2808 NV next, every;
2304} PerlIOCede; 2809} PerlIOCede;
2305 2810
2306static IV 2811static IV ecb_cold
2307PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2812PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2308{ 2813{
2309 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2814 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2310 2815
2311 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2816 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2312 self->next = nvtime () + self->every; 2817 self->next = nvtime () + self->every;
2313 2818
2314 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2819 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2315} 2820}
2316 2821
2317static SV * 2822static SV * ecb_cold
2318PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2823PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2319{ 2824{
2320 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2825 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2321 2826
2322 return newSVnv (self->every); 2827 return newSVnv (self->every);
… …
2373/* Coro::Semaphore & Coro::Signal */ 2878/* Coro::Semaphore & Coro::Signal */
2374 2879
2375static SV * 2880static SV *
2376coro_waitarray_new (pTHX_ int count) 2881coro_waitarray_new (pTHX_ int count)
2377{ 2882{
2378 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2883 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2379 AV *av = newAV (); 2884 AV *av = newAV ();
2380 SV **ary; 2885 SV **ary;
2381 2886
2382 /* unfortunately, building manually saves memory */ 2887 /* unfortunately, building manually saves memory */
2383 Newx (ary, 2, SV *); 2888 Newx (ary, 2, SV *);
… …
2434 SvREFCNT_dec (cb); 2939 SvREFCNT_dec (cb);
2435 } 2940 }
2436} 2941}
2437 2942
2438static void 2943static void
2439coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2944coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2440{ 2945{
2441 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2946 /* call $sem->adjust (0) to possibly wake up some other waiters */
2442 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2947 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2443} 2948}
2444 2949
2445static int 2950static int
2446slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2951slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2447{ 2952{
2448 AV *av = (AV *)frame->data; 2953 AV *av = (AV *)frame->data;
2449 SV *count_sv = AvARRAY (av)[0]; 2954 SV *count_sv = AvARRAY (av)[0];
2955 SV *coro_hv = SvRV (coro_current);
2450 2956
2451 /* if we are about to throw, don't actually acquire the lock, just throw */ 2957 /* if we are about to throw, don't actually acquire the lock, just throw */
2452 if (CORO_THROW) 2958 if (CORO_THROW)
2453 return 0; 2959 return 0;
2454 else if (SvIVX (count_sv) > 0) 2960 else if (SvIVX (count_sv) > 0)
2455 { 2961 {
2456 SvSTATE_current->on_destroy = 0; 2962 frame->destroy = 0;
2457 2963
2458 if (acquire) 2964 if (acquire)
2459 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2965 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2460 else 2966 else
2461 coro_semaphore_adjust (aTHX_ av, 0); 2967 coro_semaphore_adjust (aTHX_ av, 0);
… …
2466 { 2972 {
2467 int i; 2973 int i;
2468 /* if we were woken up but can't down, we look through the whole */ 2974 /* if we were woken up but can't down, we look through the whole */
2469 /* waiters list and only add us if we aren't in there already */ 2975 /* waiters list and only add us if we aren't in there already */
2470 /* this avoids some degenerate memory usage cases */ 2976 /* this avoids some degenerate memory usage cases */
2471 2977 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2472 for (i = 1; i <= AvFILLp (av); ++i)
2473 if (AvARRAY (av)[i] == SvRV (coro_current)) 2978 if (AvARRAY (av)[i] == coro_hv)
2474 return 1; 2979 return 1;
2475 2980
2476 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2981 av_push (av, SvREFCNT_inc (coro_hv));
2477 return 1; 2982 return 1;
2478 } 2983 }
2479} 2984}
2480 2985
2481static int 2986static int
… …
2504 { 3009 {
2505 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3010 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2506 3011
2507 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3012 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2508 frame->prepare = prepare_schedule; 3013 frame->prepare = prepare_schedule;
2509
2510 /* to avoid race conditions when a woken-up coro gets terminated */ 3014 /* to avoid race conditions when a woken-up coro gets terminated */
2511 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3015 /* we arrange for a temporary on_destroy that calls adjust (0) */
2512 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3016 frame->destroy = coro_semaphore_destroy;
2513 } 3017 }
2514} 3018}
2515 3019
2516static void 3020static void
2517slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3021slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2525{ 3029{
2526 if (items >= 2) 3030 if (items >= 2)
2527 { 3031 {
2528 /* callback form */ 3032 /* callback form */
2529 AV *av = (AV *)SvRV (arg [0]); 3033 AV *av = (AV *)SvRV (arg [0]);
2530 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3034 SV *cb_cv = s_get_cv_croak (arg [1]);
2531 3035
2532 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3036 av_push (av, SvREFCNT_inc_NN (cb_cv));
2533 3037
2534 if (SvIVX (AvARRAY (av)[0]) > 0) 3038 if (SvIVX (AvARRAY (av)[0]) > 0)
2535 coro_semaphore_adjust (aTHX_ av, 0); 3039 coro_semaphore_adjust (aTHX_ av, 0);
2536 3040
2537 frame->prepare = prepare_nop; 3041 frame->prepare = prepare_nop;
… …
2561 AvARRAY (av)[0] = AvARRAY (av)[1]; 3065 AvARRAY (av)[0] = AvARRAY (av)[1];
2562 AvARRAY (av)[1] = cb; 3066 AvARRAY (av)[1] = cb;
2563 3067
2564 cb = av_shift (av); 3068 cb = av_shift (av);
2565 3069
3070 if (SvTYPE (cb) == SVt_PVCV)
3071 {
3072 dSP;
3073 PUSHMARK (SP);
3074 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3075 PUTBACK;
3076 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3077 }
3078 else
3079 {
2566 api_ready (aTHX_ cb); 3080 api_ready (aTHX_ cb);
2567 sv_setiv (cb, 0); /* signal waiter */ 3081 sv_setiv (cb, 0); /* signal waiter */
3082 }
3083
2568 SvREFCNT_dec (cb); 3084 SvREFCNT_dec (cb);
2569 3085
2570 --count; 3086 --count;
2571 } 3087 }
2572} 3088}
… …
2581static void 3097static void
2582slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3098slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2583{ 3099{
2584 AV *av = (AV *)SvRV (arg [0]); 3100 AV *av = (AV *)SvRV (arg [0]);
2585 3101
3102 if (items >= 2)
3103 {
3104 SV *cb_cv = s_get_cv_croak (arg [1]);
3105 av_push (av, SvREFCNT_inc_NN (cb_cv));
3106
2586 if (SvIVX (AvARRAY (av)[0])) 3107 if (SvIVX (AvARRAY (av)[0]))
3108 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3109
3110 frame->prepare = prepare_nop;
3111 frame->check = slf_check_nop;
3112 }
3113 else if (SvIVX (AvARRAY (av)[0]))
2587 { 3114 {
2588 SvIVX (AvARRAY (av)[0]) = 0; 3115 SvIVX (AvARRAY (av)[0]) = 0;
2589 frame->prepare = prepare_nop; 3116 frame->prepare = prepare_nop;
2590 frame->check = slf_check_nop; 3117 frame->check = slf_check_nop;
2591 } 3118 }
2592 else 3119 else
2593 { 3120 {
2594 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3121 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2595 3122
2596 av_push (av, waiter); 3123 av_push (av, waiter);
2597 3124
2598 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3125 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2599 frame->prepare = prepare_schedule; 3126 frame->prepare = prepare_schedule;
… …
2617 3144
2618static void 3145static void
2619coro_aio_callback (pTHX_ CV *cv) 3146coro_aio_callback (pTHX_ CV *cv)
2620{ 3147{
2621 dXSARGS; 3148 dXSARGS;
2622 AV *state = (AV *)GENSUB_ARG; 3149 AV *state = (AV *)S_GENSUB_ARG;
2623 SV *coro = av_pop (state); 3150 SV *coro = av_pop (state);
2624 SV *data_sv = newSV (sizeof (struct io_state)); 3151 SV *data_sv = newSV (sizeof (struct io_state));
2625 3152
2626 av_extend (state, items - 1); 3153 av_extend (state, items - 1);
2627 3154
… …
2712 dSP; 3239 dSP;
2713 3240
2714 static SV *prio_cv; 3241 static SV *prio_cv;
2715 static SV *prio_sv; 3242 static SV *prio_sv;
2716 3243
2717 if (expect_false (!prio_cv)) 3244 if (ecb_expect_false (!prio_cv))
2718 { 3245 {
2719 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3246 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2720 prio_sv = newSViv (0); 3247 prio_sv = newSViv (0);
2721 } 3248 }
2722 3249
… …
2741 3268
2742 for (i = 0; i < items; ++i) 3269 for (i = 0; i < items; ++i)
2743 PUSHs (arg [i]); 3270 PUSHs (arg [i]);
2744 3271
2745 /* now push the callback closure */ 3272 /* now push the callback closure */
2746 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3273 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2747 3274
2748 /* now call the AIO function - we assume our request is uncancelable */ 3275 /* now call the AIO function - we assume our request is uncancelable */
2749 PUTBACK; 3276 PUTBACK;
2750 call_sv ((SV *)req, G_VOID | G_DISCARD); 3277 call_sv ((SV *)req, G_VOID | G_DISCARD);
2751 } 3278 }
2752 3279
2753 /* now that the requets is going, we loop toll we have a result */ 3280 /* now that the request is going, we loop till we have a result */
2754 frame->data = (void *)state; 3281 frame->data = (void *)state;
2755 frame->prepare = prepare_schedule; 3282 frame->prepare = prepare_schedule;
2756 frame->check = slf_check_aio_req; 3283 frame->check = slf_check_aio_req;
2757} 3284}
2758 3285
… …
2768 3295
2769/*****************************************************************************/ 3296/*****************************************************************************/
2770 3297
2771#if CORO_CLONE 3298#if CORO_CLONE
2772# include "clone.c" 3299# include "clone.c"
3300#endif
3301
3302/*****************************************************************************/
3303
3304static SV *
3305coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3306{
3307 SV *coro_sv;
3308 struct coro *coro;
3309 MAGIC *mg;
3310 HV *hv;
3311 SV *cb;
3312 int i;
3313
3314 if (argc > 0)
3315 {
3316 cb = s_get_cv_croak (argv [0]);
3317
3318 if (!is_coro)
3319 {
3320 if (CvISXSUB (cb))
3321 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3322
3323 if (!CvROOT (cb))
3324 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3325 }
3326 }
3327
3328 Newz (0, coro, 1, struct coro);
3329 coro->args = newAV ();
3330 coro->flags = CF_NEW;
3331
3332 if (coro_first) coro_first->prev = coro;
3333 coro->next = coro_first;
3334 coro_first = coro;
3335
3336 coro->hv = hv = newHV ();
3337 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3338 mg->mg_flags |= MGf_DUP;
3339 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3340
3341 if (argc > 0)
3342 {
3343 av_extend (coro->args, argc + is_coro - 1);
3344
3345 if (is_coro)
3346 {
3347 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3348 cb = (SV *)cv_coro_run;
3349 }
3350
3351 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3352
3353 for (i = 1; i < argc; i++)
3354 av_push (coro->args, newSVsv (argv [i]));
3355 }
3356
3357 return coro_sv;
3358}
3359
3360#ifndef __cplusplus
3361ecb_cold XS(boot_Coro__State);
3362#endif
3363
3364#if CORO_JIT
3365
3366static void ecb_noinline ecb_cold
3367pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3368{
3369 dSP;
3370 AV *av = newAV ();
3371
3372 av_store (av, 3, newSVuv (d));
3373 av_store (av, 2, newSVuv (c));
3374 av_store (av, 1, newSVuv (b));
3375 av_store (av, 0, newSVuv (a));
3376
3377 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3378
3379 PUTBACK;
3380}
3381
3382static void ecb_noinline ecb_cold
3383jit_init (pTHX)
3384{
3385 dSP;
3386 SV *load, *save;
3387 char *map_base;
3388 char *load_ptr, *save_ptr;
3389 STRLEN load_len, save_len, map_len;
3390 int count;
3391
3392 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3393
3394 PUSHMARK (SP);
3395#define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3396# include "state.h"
3397#undef VARx
3398 count = call_pv ("Coro::State::_jit", G_ARRAY);
3399 SPAGAIN;
3400
3401 save = POPs; save_ptr = SvPVbyte (save, save_len);
3402 load = POPs; load_ptr = SvPVbyte (load, load_len);
3403
3404 map_len = load_len + save_len + 16;
3405
3406 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3407
3408 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3409
3410 load_perl_slots = (load_save_perl_slots_type)map_base;
3411 memcpy (map_base, load_ptr, load_len);
3412
3413 map_base += (load_len + 15) & ~15;
3414
3415 save_perl_slots = (load_save_perl_slots_type)map_base;
3416 memcpy (map_base, save_ptr, save_len);
3417
3418 /* we are good citizens and try to make the page read-only, so the evil evil */
3419 /* hackers might have it a bit more difficult */
3420 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3421
3422 PUTBACK;
3423 eval_pv ("undef &Coro::State::_jit", 1);
3424}
3425
2773#endif 3426#endif
2774 3427
2775MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3428MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2776 3429
2777PROTOTYPES: DISABLE 3430PROTOTYPES: DISABLE
… …
2782# if CORO_PTHREAD 3435# if CORO_PTHREAD
2783 coro_thx = PERL_GET_CONTEXT; 3436 coro_thx = PERL_GET_CONTEXT;
2784# endif 3437# endif
2785#endif 3438#endif
2786 BOOT_PAGESIZE; 3439 BOOT_PAGESIZE;
3440
3441 /* perl defines these to check for existance first, but why it doesn't */
3442 /* just create them one at init time is not clear to me, except for */
3443 /* programs trying to delete them, but... */
3444 /* anyway, we declare this as invalid and make sure they are initialised here */
3445 DEFSV;
3446 ERRSV;
2787 3447
2788 cctx_current = cctx_new_empty (); 3448 cctx_current = cctx_new_empty ();
2789 3449
2790 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3450 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2791 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3451 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
2831 coroapi.prepare_nop = prepare_nop; 3491 coroapi.prepare_nop = prepare_nop;
2832 coroapi.prepare_schedule = prepare_schedule; 3492 coroapi.prepare_schedule = prepare_schedule;
2833 coroapi.prepare_cede = prepare_cede; 3493 coroapi.prepare_cede = prepare_cede;
2834 coroapi.prepare_cede_notself = prepare_cede_notself; 3494 coroapi.prepare_cede_notself = prepare_cede_notself;
2835 3495
2836 { 3496 time_init (aTHX);
2837 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2838 3497
2839 if (!svp) croak ("Time::HiRes is required");
2840 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2841
2842 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2843 }
2844
2845 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3498 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3499#if CORO_JIT
3500 PUTBACK;
3501 jit_init (aTHX);
3502 SPAGAIN;
3503#endif
2846} 3504}
2847 3505
2848SV * 3506SV *
2849new (char *klass, ...) 3507new (SV *klass, ...)
2850 ALIAS: 3508 ALIAS:
2851 Coro::new = 1 3509 Coro::new = 1
2852 CODE: 3510 CODE:
2853{ 3511 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2854 struct coro *coro; 3512 OUTPUT:
2855 MAGIC *mg;
2856 HV *hv;
2857 CV *cb;
2858 int i;
2859
2860 if (items > 1)
2861 {
2862 cb = coro_sv_2cv (aTHX_ ST (1));
2863
2864 if (!ix)
2865 {
2866 if (CvISXSUB (cb))
2867 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2868
2869 if (!CvROOT (cb))
2870 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2871 }
2872 }
2873
2874 Newz (0, coro, 1, struct coro);
2875 coro->args = newAV ();
2876 coro->flags = CF_NEW;
2877
2878 if (coro_first) coro_first->prev = coro;
2879 coro->next = coro_first;
2880 coro_first = coro;
2881
2882 coro->hv = hv = newHV ();
2883 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2884 mg->mg_flags |= MGf_DUP;
2885 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2886
2887 if (items > 1)
2888 {
2889 av_extend (coro->args, items - 1 + ix - 1);
2890
2891 if (ix)
2892 {
2893 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2894 cb = cv_coro_run;
2895 }
2896
2897 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2898
2899 for (i = 2; i < items; i++)
2900 av_push (coro->args, newSVsv (ST (i)));
2901 }
2902}
2903 OUTPUT:
2904 RETVAL 3513 RETVAL
2905 3514
2906void 3515void
2907transfer (...) 3516transfer (...)
2908 PROTOTYPE: $$ 3517 PROTOTYPE: $$
2909 CODE: 3518 CODE:
2910 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3519 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2911
2912bool
2913_destroy (SV *coro_sv)
2914 CODE:
2915 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2916 OUTPUT:
2917 RETVAL
2918 3520
2919void 3521void
2920_exit (int code) 3522_exit (int code)
2921 PROTOTYPE: $ 3523 PROTOTYPE: $
2922 CODE: 3524 CODE:
… …
2997 eval = 1 3599 eval = 1
2998 CODE: 3600 CODE:
2999{ 3601{
3000 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3602 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3001 { 3603 {
3002 struct coro temp; 3604 struct coro *current = SvSTATE_current;
3605 struct CoroSLF slf_save;
3003 3606
3004 if (!(coro->flags & CF_RUNNING)) 3607 if (current != coro)
3005 { 3608 {
3006 PUTBACK; 3609 PUTBACK;
3007 save_perl (aTHX_ &temp); 3610 save_perl (aTHX_ current);
3008 load_perl (aTHX_ coro); 3611 load_perl (aTHX_ coro);
3612 /* the coro is most likely in an active SLF call.
3613 * while not strictly required (the code we execute is
3614 * not allowed to call any SLF functions), it's cleaner
3615 * to reinitialise the slf_frame and restore it later.
3616 * This might one day allow us to actually do SLF calls
3617 * from code executed here.
3618 */
3619 slf_save = slf_frame;
3620 slf_frame.prepare = 0;
3621 SPAGAIN;
3009 } 3622 }
3010 3623
3011 {
3012 dSP;
3013 ENTER;
3014 SAVETMPS;
3015 PUTBACK;
3016 PUSHSTACK; 3624 PUSHSTACK;
3625
3017 PUSHMARK (SP); 3626 PUSHMARK (SP);
3627 PUTBACK;
3018 3628
3019 if (ix) 3629 if (ix)
3020 eval_sv (coderef, 0); 3630 eval_sv (coderef, 0);
3021 else 3631 else
3022 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3632 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3023 3633
3024 POPSTACK; 3634 POPSTACK;
3025 SPAGAIN; 3635 SPAGAIN;
3026 FREETMPS;
3027 LEAVE;
3028 PUTBACK;
3029 }
3030 3636
3031 if (!(coro->flags & CF_RUNNING)) 3637 if (current != coro)
3032 { 3638 {
3639 PUTBACK;
3640 slf_frame = slf_save;
3033 save_perl (aTHX_ coro); 3641 save_perl (aTHX_ coro);
3034 load_perl (aTHX_ &temp); 3642 load_perl (aTHX_ current);
3035 SPAGAIN; 3643 SPAGAIN;
3036 } 3644 }
3037 } 3645 }
3038} 3646}
3039 3647
… …
3042 PROTOTYPE: $ 3650 PROTOTYPE: $
3043 ALIAS: 3651 ALIAS:
3044 is_ready = CF_READY 3652 is_ready = CF_READY
3045 is_running = CF_RUNNING 3653 is_running = CF_RUNNING
3046 is_new = CF_NEW 3654 is_new = CF_NEW
3047 is_destroyed = CF_DESTROYED 3655 is_destroyed = CF_ZOMBIE
3656 is_zombie = CF_ZOMBIE
3657 is_suspended = CF_SUSPENDED
3048 CODE: 3658 CODE:
3049 RETVAL = boolSV (coro->flags & ix); 3659 RETVAL = boolSV (coro->flags & ix);
3050 OUTPUT: 3660 OUTPUT:
3051 RETVAL 3661 RETVAL
3052 3662
3053void 3663void
3054throw (Coro::State self, SV *throw = &PL_sv_undef) 3664throw (Coro::State self, SV *exception = &PL_sv_undef)
3055 PROTOTYPE: $;$ 3665 PROTOTYPE: $;$
3056 CODE: 3666 CODE:
3057{ 3667{
3058 struct coro *current = SvSTATE_current; 3668 struct coro *current = SvSTATE_current;
3059 SV **throwp = self == current ? &CORO_THROW : &self->except; 3669 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3060 SvREFCNT_dec (*throwp); 3670 SvREFCNT_dec (*exceptionp);
3061 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3671 SvGETMAGIC (exception);
3672 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3062} 3673}
3063 3674
3064void 3675void
3065api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3676api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3066 PROTOTYPE: $;$ 3677 PROTOTYPE: $;$
… …
3117 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3728 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3118 3729
3119 SV *tmp = *src; *src = *dst; *dst = tmp; 3730 SV *tmp = *src; *src = *dst; *dst = tmp;
3120 } 3731 }
3121 3732
3733void
3734cancel (Coro::State self)
3735 CODE:
3736 coro_state_destroy (aTHX_ self);
3737
3738SV *
3739enable_times (int enabled = enable_times)
3740 CODE:
3741{
3742 RETVAL = boolSV (enable_times);
3743
3744 if (enabled != enable_times)
3745 {
3746 enable_times = enabled;
3747
3748 coro_times_update ();
3749 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3750 }
3751}
3752 OUTPUT:
3753 RETVAL
3754
3755void
3756times (Coro::State self)
3757 PPCODE:
3758{
3759 struct coro *current = SvSTATE (coro_current);
3760
3761 if (ecb_expect_false (current == self))
3762 {
3763 coro_times_update ();
3764 coro_times_add (SvSTATE (coro_current));
3765 }
3766
3767 EXTEND (SP, 2);
3768 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3769 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3770
3771 if (ecb_expect_false (current == self))
3772 coro_times_sub (SvSTATE (coro_current));
3773}
3774
3775void
3776swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3777 CODE:
3778{
3779 struct coro *current = SvSTATE_current;
3780
3781 if (current == coro)
3782 SWAP_SVS (current);
3783
3784 if (!coro->swap_sv)
3785 coro->swap_sv = newAV ();
3786
3787 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3788 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3789
3790 if (current == coro)
3791 SWAP_SVS (current);
3792}
3793
3122 3794
3123MODULE = Coro::State PACKAGE = Coro 3795MODULE = Coro::State PACKAGE = Coro
3124 3796
3125BOOT: 3797BOOT:
3126{ 3798{
3127 int i;
3128
3129 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3799 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3130 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3800 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3131 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3801 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3132 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3133 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3802 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3134 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3803 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3135 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3804 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3136 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3805 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3137 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3806 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3138 3807
3139 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3808 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3140 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3809 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3141 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3810 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3142 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3811 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3143 3812
3144 coro_stash = gv_stashpv ("Coro", TRUE); 3813 coro_stash = gv_stashpv ("Coro", TRUE);
3145 3814
3146 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3815 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3147 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3816 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3148 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3817 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3149 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3818 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3150 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3819 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3151 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3820 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3152
3153 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3154 coro_ready[i] = newAV ();
3155 3821
3156 { 3822 {
3157 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3823 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3158 3824
3159 coroapi.schedule = api_schedule; 3825 coroapi.schedule = api_schedule;
… …
3169 sv_setiv (sv, (IV)&coroapi); 3835 sv_setiv (sv, (IV)&coroapi);
3170 SvREADONLY_on (sv); 3836 SvREADONLY_on (sv);
3171 } 3837 }
3172} 3838}
3173 3839
3840SV *
3841async (...)
3842 PROTOTYPE: &@
3843 CODE:
3844 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3845 api_ready (aTHX_ RETVAL);
3846 OUTPUT:
3847 RETVAL
3848
3849void
3850_destroy (Coro::State coro)
3851 CODE:
3852 /* used by the manager thread */
3853 coro_state_destroy (aTHX_ coro);
3854
3855void
3856on_destroy (Coro::State coro, SV *cb)
3857 CODE:
3858 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3859
3860void
3861join (...)
3862 CODE:
3863 CORO_EXECUTE_SLF_XS (slf_init_join);
3864
3174void 3865void
3175terminate (...) 3866terminate (...)
3176 CODE: 3867 CODE:
3177 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3868 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3178 3869
3179void 3870void
3871cancel (...)
3872 CODE:
3873 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3874
3875int
3876safe_cancel (Coro::State self, ...)
3877 C_ARGS: aTHX_ self, &ST (1), items - 1
3878
3879void
3180schedule (...) 3880schedule (...)
3181 CODE: 3881 CODE:
3182 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3882 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3183 3883
3184void 3884void
… …
3198 3898
3199void 3899void
3200cede_notself (...) 3900cede_notself (...)
3201 CODE: 3901 CODE:
3202 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3902 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3203
3204void
3205_cancel (Coro::State self)
3206 CODE:
3207 coro_state_destroy (aTHX_ self);
3208 coro_call_on_destroy (aTHX_ self);
3209 3903
3210void 3904void
3211_set_current (SV *current) 3905_set_current (SV *current)
3212 PROTOTYPE: $ 3906 PROTOTYPE: $
3213 CODE: 3907 CODE:
… …
3217void 3911void
3218_set_readyhook (SV *hook) 3912_set_readyhook (SV *hook)
3219 PROTOTYPE: $ 3913 PROTOTYPE: $
3220 CODE: 3914 CODE:
3221 SvREFCNT_dec (coro_readyhook); 3915 SvREFCNT_dec (coro_readyhook);
3916 SvGETMAGIC (hook);
3917 if (SvOK (hook))
3918 {
3222 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3919 coro_readyhook = newSVsv (hook);
3920 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3921 }
3922 else
3923 {
3924 coro_readyhook = 0;
3925 CORO_READYHOOK = 0;
3926 }
3223 3927
3224int 3928int
3225prio (Coro::State coro, int newprio = 0) 3929prio (Coro::State coro, int newprio = 0)
3226 PROTOTYPE: $;$ 3930 PROTOTYPE: $;$
3227 ALIAS: 3931 ALIAS:
… …
3233 if (items > 1) 3937 if (items > 1)
3234 { 3938 {
3235 if (ix) 3939 if (ix)
3236 newprio = coro->prio - newprio; 3940 newprio = coro->prio - newprio;
3237 3941
3238 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3942 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3239 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3943 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3240 3944
3241 coro->prio = newprio; 3945 coro->prio = newprio;
3242 } 3946 }
3243} 3947}
3244 OUTPUT: 3948 OUTPUT:
… …
3259 RETVAL = coro_nready; 3963 RETVAL = coro_nready;
3260 OUTPUT: 3964 OUTPUT:
3261 RETVAL 3965 RETVAL
3262 3966
3263void 3967void
3968suspend (Coro::State self)
3969 PROTOTYPE: $
3970 CODE:
3971 self->flags |= CF_SUSPENDED;
3972
3973void
3974resume (Coro::State self)
3975 PROTOTYPE: $
3976 CODE:
3977 self->flags &= ~CF_SUSPENDED;
3978
3979void
3264_pool_handler (...) 3980_pool_handler (...)
3265 CODE: 3981 CODE:
3266 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3982 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3267 3983
3268void 3984void
… …
3279 for (i = 1; i < items; ++i) 3995 for (i = 1; i < items; ++i)
3280 av_push (av, SvREFCNT_inc_NN (ST (i))); 3996 av_push (av, SvREFCNT_inc_NN (ST (i)));
3281 3997
3282 if ((SV *)hv == &PL_sv_undef) 3998 if ((SV *)hv == &PL_sv_undef)
3283 { 3999 {
3284 PUSHMARK (SP); 4000 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3285 EXTEND (SP, 2);
3286 PUSHs (sv_Coro);
3287 PUSHs ((SV *)cv_pool_handler);
3288 PUTBACK;
3289 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3290 SPAGAIN;
3291
3292 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4001 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4002 SvREFCNT_dec (sv);
3293 } 4003 }
3294 4004
3295 { 4005 {
3296 struct coro *coro = SvSTATE_hv (hv); 4006 struct coro *coro = SvSTATE_hv (hv);
3297 4007
… …
3321rouse_wait (...) 4031rouse_wait (...)
3322 PROTOTYPE: ;$ 4032 PROTOTYPE: ;$
3323 PPCODE: 4033 PPCODE:
3324 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4034 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3325 4035
4036void
4037on_enter (SV *block)
4038 ALIAS:
4039 on_leave = 1
4040 PROTOTYPE: &
4041 CODE:
4042{
4043 struct coro *coro = SvSTATE_current;
4044 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4045
4046 block = s_get_cv_croak (block);
4047
4048 if (!*avp)
4049 *avp = newAV ();
4050
4051 av_push (*avp, SvREFCNT_inc (block));
4052
4053 if (!ix)
4054 on_enterleave_call (aTHX_ block);
4055
4056 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4057 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4058 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4059}
4060
3326 4061
3327MODULE = Coro::State PACKAGE = PerlIO::cede 4062MODULE = Coro::State PACKAGE = PerlIO::cede
3328 4063
3329BOOT: 4064BOOT:
3330 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4065 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3333MODULE = Coro::State PACKAGE = Coro::Semaphore 4068MODULE = Coro::State PACKAGE = Coro::Semaphore
3334 4069
3335SV * 4070SV *
3336new (SV *klass, SV *count = 0) 4071new (SV *klass, SV *count = 0)
3337 CODE: 4072 CODE:
4073{
4074 int semcnt = 1;
4075
4076 if (count)
4077 {
4078 SvGETMAGIC (count);
4079
4080 if (SvOK (count))
4081 semcnt = SvIV (count);
4082 }
4083
3338 RETVAL = sv_bless ( 4084 RETVAL = sv_bless (
3339 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4085 coro_waitarray_new (aTHX_ semcnt),
3340 GvSTASH (CvGV (cv)) 4086 GvSTASH (CvGV (cv))
3341 ); 4087 );
4088}
3342 OUTPUT: 4089 OUTPUT:
3343 RETVAL 4090 RETVAL
3344 4091
3345# helper for Coro::Channel 4092# helper for Coro::Channel and others
3346SV * 4093SV *
3347_alloc (int count) 4094_alloc (int count)
3348 CODE: 4095 CODE:
3349 RETVAL = coro_waitarray_new (aTHX_ count); 4096 RETVAL = coro_waitarray_new (aTHX_ count);
3350 OUTPUT: 4097 OUTPUT:
… …
3408 for (i = 1; i <= wcount; ++i) 4155 for (i = 1; i <= wcount; ++i)
3409 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4156 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3410 } 4157 }
3411} 4158}
3412 4159
4160MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4161
4162void
4163_may_delete (SV *sem, int count, unsigned int extra_refs)
4164 PPCODE:
4165{
4166 AV *av = (AV *)SvRV (sem);
4167
4168 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4169 && AvFILLp (av) == 0 /* no waiters, just count */
4170 && SvIV (AvARRAY (av)[0]) == count)
4171 XSRETURN_YES;
4172
4173 XSRETURN_NO;
4174}
4175
3413MODULE = Coro::State PACKAGE = Coro::Signal 4176MODULE = Coro::State PACKAGE = Coro::Signal
3414 4177
3415SV * 4178SV *
3416new (SV *klass) 4179new (SV *klass)
3417 CODE: 4180 CODE:
… …
3488 4251
3489void 4252void
3490_register (char *target, char *proto, SV *req) 4253_register (char *target, char *proto, SV *req)
3491 CODE: 4254 CODE:
3492{ 4255{
3493 CV *req_cv = coro_sv_2cv (aTHX_ req); 4256 SV *req_cv = s_get_cv_croak (req);
3494 /* newXSproto doesn't return the CV on 5.8 */ 4257 /* newXSproto doesn't return the CV on 5.8 */
3495 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4258 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3496 sv_setpv ((SV *)slf_cv, proto); 4259 sv_setpv ((SV *)slf_cv, proto);
3497 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4260 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3498} 4261}
3499 4262
4263MODULE = Coro::State PACKAGE = Coro::Select
4264
4265void
4266patch_pp_sselect ()
4267 CODE:
4268 if (!coro_old_pp_sselect)
4269 {
4270 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4271 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4272 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4273 }
4274
4275void
4276unpatch_pp_sselect ()
4277 CODE:
4278 if (coro_old_pp_sselect)
4279 {
4280 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4281 coro_old_pp_sselect = 0;
4282 }
4283

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