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Comparing Coro/Coro/State.xs (file contents):
Revision 1.329 by root, Tue Nov 25 20:48:41 2008 UTC vs.
Revision 1.427 by root, Wed Dec 5 14:35:34 2012 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"
12 17
18#define ECB_NO_THREADS 1
19#include "ecb.h"
20
21#include <stddef.h>
13#include <stdio.h> 22#include <stdio.h>
14#include <errno.h> 23#include <errno.h>
15#include <assert.h> 24#include <assert.h>
16 25
17#ifdef WIN32 26#ifndef SVs_PADSTALE
27# define SVs_PADSTALE 0
28#endif
29
30#ifdef PadARRAY
31# define NEWPADAPI
32# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33#else
34typedef AV PADNAMELIST;
35# if !PERL_VERSION_ATLEAST(5,8,0)
36typedef AV PADLIST;
37typedef AV PAD;
38# endif
39# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
40# define PadlistMAX(pl) AvFILLp (pl)
41# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42# define PadARRAY AvARRAY
43# define PadMAX AvFILLp
44# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
45#endif
46
47#if defined(_WIN32)
48# undef HAS_GETTIMEOFDAY
18# undef setjmp 49# undef setjmp
19# undef longjmp 50# undef longjmp
20# undef _exit 51# undef _exit
21# define setjmp _setjmp /* deep magic */ 52# define setjmp _setjmp /* deep magic */
22#else 53#else
23# include <inttypes.h> /* most portable stdint.h */ 54# include <inttypes.h> /* most portable stdint.h */
24#endif 55#endif
25 56
26#ifdef HAVE_MMAP 57#if HAVE_MMAP
27# include <unistd.h> 58# include <unistd.h>
28# include <sys/mman.h> 59# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS 60# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON 61# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON 62# define MAP_ANONYMOUS MAP_ANON
… …
51#endif 82#endif
52 83
53/* the maximum number of idle cctx that will be pooled */ 84/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 85static int cctx_max_idle = 4;
55 86
56#define PERL_VERSION_ATLEAST(a,b,c) \ 87#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 88# 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 89#endif
114 90
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 91#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 92# undef CORO_STACKGUARD
117#endif 93#endif
… …
133#else 109#else
134# define dSTACKLEVEL volatile void *stacklevel 110# define dSTACKLEVEL volatile void *stacklevel
135# define STACKLEVEL ((void *)&stacklevel) 111# define STACKLEVEL ((void *)&stacklevel)
136#endif 112#endif
137 113
138#define IN_DESTRUCT (PL_main_cv == Nullcv) 114#define IN_DESTRUCT PL_dirty
139
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))
154 115
155#include "CoroAPI.h" 116#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */ 117#define GCoroAPI (&coroapi) /* very sneaky */
157 118
158#ifdef USE_ITHREADS 119#ifdef USE_ITHREADS
159# if CORO_PTHREAD 120# if CORO_PTHREAD
160static void *coro_thx; 121static void *coro_thx;
161# endif 122# endif
162#endif 123#endif
163 124
125#ifdef __linux
126# include <time.h> /* for timespec */
127# include <syscall.h> /* for SYS_* */
128# ifdef SYS_clock_gettime
129# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
130# define CORO_CLOCK_MONOTONIC 1
131# define CORO_CLOCK_THREAD_CPUTIME_ID 3
132# endif
133#endif
134
164static double (*nvtime)(); /* so why doesn't it take void? */ 135static double (*nvtime)(); /* so why doesn't it take void? */
136static void (*u2time)(pTHX_ UV ret[2]);
165 137
166/* we hijack an hopefully unused CV flag for our purposes */ 138/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 139#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 140static OP *pp_slf (pTHX);
141static void slf_destroy (pTHX_ struct coro *coro);
169 142
170static U32 cctx_gen; 143static U32 cctx_gen;
171static size_t cctx_stacksize = CORO_STACKSIZE; 144static size_t cctx_stacksize = CORO_STACKSIZE;
172static struct CoroAPI coroapi; 145static struct CoroAPI coroapi;
173static AV *main_mainstack; /* used to differentiate between $main and others */ 146static AV *main_mainstack; /* used to differentiate between $main and others */
… …
190static SV *sv_pool_size; 163static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */ 164static SV *sv_async_pool_idle; /* description string */
192static AV *av_async_pool; /* idle pool */ 165static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */ 166static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler; 167static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
196 168
197/* Coro::AnyEvent */ 169/* Coro::AnyEvent */
198static SV *sv_activity; 170static SV *sv_activity;
199 171
172/* enable processtime/realtime profiling */
173static char enable_times;
174typedef U32 coro_ts[2];
175static coro_ts time_real, time_cpu;
176static char times_valid;
177
200static struct coro_cctx *cctx_first; 178static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 179static int cctx_count, cctx_idle;
202 180
203enum { 181enum
182{
204 CC_MAPPED = 0x01, 183 CC_MAPPED = 0x01,
205 CC_NOREUSE = 0x02, /* throw this away after tracing */ 184 CC_NOREUSE = 0x02, /* throw this away after tracing */
206 CC_TRACE = 0x04, 185 CC_TRACE = 0x04,
207 CC_TRACE_SUB = 0x08, /* trace sub calls */ 186 CC_TRACE_SUB = 0x08, /* trace sub calls */
208 CC_TRACE_LINE = 0x10, /* trace each statement */ 187 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
218 void *sptr; 197 void *sptr;
219 size_t ssize; 198 size_t ssize;
220 199
221 /* cpu state */ 200 /* cpu state */
222 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 201 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
202#ifndef NDEBUG
223 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 203 JMPENV *idle_te; /* same as idle_sp, but for top_env */
204#endif
224 JMPENV *top_env; 205 JMPENV *top_env;
225 coro_context cctx; 206 coro_context cctx;
226 207
227 U32 gen; 208 U32 gen;
228#if CORO_USE_VALGRIND 209#if CORO_USE_VALGRIND
229 int valgrind_id; 210 int valgrind_id;
230#endif 211#endif
231 unsigned char flags; 212 unsigned char flags;
232} coro_cctx; 213} coro_cctx;
233 214
234coro_cctx *cctx_current; /* the currently running cctx */ 215static coro_cctx *cctx_current; /* the currently running cctx */
235 216
236/*****************************************************************************/ 217/*****************************************************************************/
237 218
219static MGVTBL coro_state_vtbl;
220
238enum { 221enum
222{
239 CF_RUNNING = 0x0001, /* coroutine is running */ 223 CF_RUNNING = 0x0001, /* coroutine is running */
240 CF_READY = 0x0002, /* coroutine is ready */ 224 CF_READY = 0x0002, /* coroutine is ready */
241 CF_NEW = 0x0004, /* has never been switched to */ 225 CF_NEW = 0x0004, /* has never been switched to */
242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 226 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
227 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
228 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
243}; 229};
244 230
245/* the structure where most of the perl state is stored, overlaid on the cxstack */ 231/* the structure where most of the perl state is stored, overlaid on the cxstack */
246typedef struct 232typedef struct
247{ 233{
248 SV *defsv;
249 AV *defav;
250 SV *errsv;
251 SV *irsgv;
252 HV *hinthv;
253#define VAR(name,type) type name; 234 #define VARx(name,expr,type) type name;
254# include "state.h" 235 #include "state.h"
255#undef VAR
256} perl_slots; 236} perl_slots;
257 237
238/* 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)) 239#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
259 240
260/* this is a structure representing a perl-level coroutine */ 241/* this is a structure representing a perl-level coroutine */
261struct coro { 242struct coro
243{
262 /* the C coroutine allocated to this perl coroutine, if any */ 244 /* the C coroutine allocated to this perl coroutine, if any */
263 coro_cctx *cctx; 245 coro_cctx *cctx;
246
247 /* ready queue */
248 struct coro *next_ready;
264 249
265 /* state data */ 250 /* state data */
266 struct CoroSLF slf_frame; /* saved slf frame */ 251 struct CoroSLF slf_frame; /* saved slf frame */
267 AV *mainstack; 252 AV *mainstack;
268 perl_slots *slot; /* basically the saved sp */ 253 perl_slots *slot; /* basically the saved sp */
269 254
270 CV *startcv; /* the CV to execute */ 255 CV *startcv; /* the CV to execute */
271 AV *args; /* data associated with this coroutine (initial args) */ 256 AV *args; /* data associated with this coroutine (initial args) */
272 int refcnt; /* coroutines are refcounted, yes */
273 int flags; /* CF_ flags */ 257 int flags; /* CF_ flags */
274 HV *hv; /* the perl hash associated with this coro, if any */ 258 HV *hv; /* the perl hash associated with this coro, if any */
275 void (*on_destroy)(pTHX_ struct coro *coro);
276 259
277 /* statistics */ 260 /* statistics */
278 int usecount; /* number of transfers to this coro */ 261 int usecount; /* number of transfers to this coro */
279 262
280 /* coro process data */ 263 /* coro process data */
281 int prio; 264 int prio;
282 SV *except; /* exception to be thrown */ 265 SV *except; /* exception to be thrown */
283 SV *rouse_cb; 266 SV *rouse_cb; /* last rouse callback */
267 AV *on_destroy; /* callbacks or coros to notify on destroy */
268 AV *status; /* the exit status list */
284 269
285 /* async_pool */ 270 /* async_pool */
286 SV *saved_deffh; 271 SV *saved_deffh;
287 SV *invoke_cb; 272 SV *invoke_cb;
288 AV *invoke_av; 273 AV *invoke_av;
289 274
275 /* on_enter/on_leave */
276 AV *on_enter;
277 AV *on_leave;
278
279 /* swap_sv */
280 AV *swap_sv;
281
282 /* times */
283 coro_ts t_cpu, t_real;
284
290 /* linked list */ 285 /* linked list */
291 struct coro *next, *prev; 286 struct coro *next, *prev;
292}; 287};
293 288
294typedef struct coro *Coro__State; 289typedef struct coro *Coro__State;
295typedef struct coro *Coro__State_or_hashref; 290typedef struct coro *Coro__State_or_hashref;
296 291
297/* the following variables are effectively part of the perl context */ 292/* the following variables are effectively part of the perl context */
298/* and get copied between struct coro and these variables */ 293/* and get copied between struct coro and these variables */
299/* the mainr easonw e don't support windows process emulation */ 294/* the main reason we don't support windows process emulation */
300static struct CoroSLF slf_frame; /* the current slf frame */ 295static struct CoroSLF slf_frame; /* the current slf frame */
301 296
302/** Coro ********************************************************************/ 297/** Coro ********************************************************************/
303 298
304#define PRIO_MAX 3 299#define CORO_PRIO_MAX 3
305#define PRIO_HIGH 1 300#define CORO_PRIO_HIGH 1
306#define PRIO_NORMAL 0 301#define CORO_PRIO_NORMAL 0
307#define PRIO_LOW -1 302#define CORO_PRIO_LOW -1
308#define PRIO_IDLE -3 303#define CORO_PRIO_IDLE -3
309#define PRIO_MIN -4 304#define CORO_PRIO_MIN -4
310 305
311/* for Coro.pm */ 306/* for Coro.pm */
312static SV *coro_current; 307static SV *coro_current;
313static SV *coro_readyhook; 308static SV *coro_readyhook;
314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 309static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315static CV *cv_coro_run, *cv_coro_terminate; 310static CV *cv_coro_run;
316static struct coro *coro_first; 311static struct coro *coro_first;
317#define coro_nready coroapi.nready 312#define coro_nready coroapi.nready
318 313
314/** JIT *********************************************************************/
315
316#if CORO_JIT
317 /* APPLE doesn't have HAVE_MMAP though */
318 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
319 #ifndef CORO_JIT_TYPE
320 #if __x86_64 && CORO_JIT_UNIXY
321 #define CORO_JIT_TYPE "amd64-unix"
322 #elif __i386 && CORO_JIT_UNIXY
323 #define CORO_JIT_TYPE "x86-unix"
324 #endif
325 #endif
326#endif
327
328#if !defined(CORO_JIT_TYPE) || !HAVE_MMAP
329 #undef CORO_JIT
330#endif
331
332#if CORO_JIT
333 typedef void (*load_save_perl_slots_type)(perl_slots *);
334 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
335#endif
336
337/** Coro::Select ************************************************************/
338
339static OP *(*coro_old_pp_sselect) (pTHX);
340static SV *coro_select_select;
341
342/* horrible hack, but if it works... */
343static OP *
344coro_pp_sselect (pTHX)
345{
346 dSP;
347 PUSHMARK (SP - 4); /* fake argument list */
348 XPUSHs (coro_select_select);
349 PUTBACK;
350
351 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
352 PL_op->op_flags |= OPf_STACKED;
353 PL_op->op_private = 0;
354 return PL_ppaddr [OP_ENTERSUB](aTHX);
355}
356
357/** time stuff **************************************************************/
358
359#ifdef HAS_GETTIMEOFDAY
360
361ecb_inline void
362coro_u2time (pTHX_ UV ret[2])
363{
364 struct timeval tv;
365 gettimeofday (&tv, 0);
366
367 ret [0] = tv.tv_sec;
368 ret [1] = tv.tv_usec;
369}
370
371ecb_inline double
372coro_nvtime (void)
373{
374 struct timeval tv;
375 gettimeofday (&tv, 0);
376
377 return tv.tv_sec + tv.tv_usec * 1e-6;
378}
379
380ecb_inline void
381time_init (pTHX)
382{
383 nvtime = coro_nvtime;
384 u2time = coro_u2time;
385}
386
387#else
388
389ecb_inline void
390time_init (pTHX)
391{
392 SV **svp;
393
394 require_pv ("Time/HiRes.pm");
395
396 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
397
398 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
399 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
400
401 nvtime = INT2PTR (double (*)(), SvIV (*svp));
402
403 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
404 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
405}
406
407#endif
408
319/** lowlevel stuff **********************************************************/ 409/** lowlevel stuff **********************************************************/
320 410
321static SV * 411static SV * ecb_noinline
322coro_get_sv (pTHX_ const char *name, int create) 412coro_get_sv (pTHX_ const char *name, int create)
323{ 413{
324#if PERL_VERSION_ATLEAST (5,10,0) 414#if PERL_VERSION_ATLEAST (5,10,0)
325 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 415 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
326 get_sv (name, create); 416 get_sv (name, create);
327#endif 417#endif
328 return get_sv (name, create); 418 return get_sv (name, create);
329} 419}
330 420
331static AV * 421static AV * ecb_noinline
332coro_get_av (pTHX_ const char *name, int create) 422coro_get_av (pTHX_ const char *name, int create)
333{ 423{
334#if PERL_VERSION_ATLEAST (5,10,0) 424#if PERL_VERSION_ATLEAST (5,10,0)
335 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 425 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
336 get_av (name, create); 426 get_av (name, create);
337#endif 427#endif
338 return get_av (name, create); 428 return get_av (name, create);
339} 429}
340 430
341static HV * 431static HV * ecb_noinline
342coro_get_hv (pTHX_ const char *name, int create) 432coro_get_hv (pTHX_ const char *name, int create)
343{ 433{
344#if PERL_VERSION_ATLEAST (5,10,0) 434#if PERL_VERSION_ATLEAST (5,10,0)
345 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 435 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
346 get_hv (name, create); 436 get_hv (name, create);
347#endif 437#endif
348 return get_hv (name, create); 438 return get_hv (name, create);
349} 439}
350 440
351/* may croak */ 441ecb_inline void
352INLINE CV * 442coro_times_update (void)
353coro_sv_2cv (pTHX_ SV *sv)
354{ 443{
355 HV *st; 444#ifdef coro_clock_gettime
356 GV *gvp; 445 struct timespec ts;
357 return sv_2cv (sv, &st, &gvp, 0);
358}
359 446
360static AV * 447 ts.tv_sec = ts.tv_nsec = 0;
448 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
449 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
450
451 ts.tv_sec = ts.tv_nsec = 0;
452 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
453 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
454#else
455 dTHX;
456 UV tv[2];
457
458 u2time (aTHX_ tv);
459 time_real [0] = tv [0];
460 time_real [1] = tv [1] * 1000;
461#endif
462}
463
464ecb_inline void
465coro_times_add (struct coro *c)
466{
467 c->t_real [1] += time_real [1];
468 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
469 c->t_real [0] += time_real [0];
470
471 c->t_cpu [1] += time_cpu [1];
472 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
473 c->t_cpu [0] += time_cpu [0];
474}
475
476ecb_inline void
477coro_times_sub (struct coro *c)
478{
479 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
480 c->t_real [1] -= time_real [1];
481 c->t_real [0] -= time_real [0];
482
483 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
484 c->t_cpu [1] -= time_cpu [1];
485 c->t_cpu [0] -= time_cpu [0];
486}
487
488/*****************************************************************************/
489/* magic glue */
490
491#define CORO_MAGIC_type_cv 26
492#define CORO_MAGIC_type_state PERL_MAGIC_ext
493
494#define CORO_MAGIC_NN(sv, type) \
495 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
496 ? SvMAGIC (sv) \
497 : mg_find (sv, type))
498
499#define CORO_MAGIC(sv, type) \
500 (ecb_expect_true (SvMAGIC (sv)) \
501 ? CORO_MAGIC_NN (sv, type) \
502 : 0)
503
504#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
505#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
506
507ecb_inline MAGIC *
508SvSTATEhv_p (pTHX_ SV *coro)
509{
510 MAGIC *mg;
511
512 if (ecb_expect_true (
513 SvTYPE (coro) == SVt_PVHV
514 && (mg = CORO_MAGIC_state (coro))
515 && mg->mg_virtual == &coro_state_vtbl
516 ))
517 return mg;
518
519 return 0;
520}
521
522ecb_inline struct coro *
523SvSTATE_ (pTHX_ SV *coro)
524{
525 MAGIC *mg;
526
527 if (SvROK (coro))
528 coro = SvRV (coro);
529
530 mg = SvSTATEhv_p (aTHX_ coro);
531 if (!mg)
532 croak ("Coro::State object required");
533
534 return (struct coro *)mg->mg_ptr;
535}
536
537#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
538
539/* faster than SvSTATE, but expects a coroutine hv */
540#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
541#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
542
543/*****************************************************************************/
544/* padlist management and caching */
545
546ecb_inline PADLIST *
361coro_derive_padlist (pTHX_ CV *cv) 547coro_derive_padlist (pTHX_ CV *cv)
362{ 548{
363 AV *padlist = CvPADLIST (cv); 549 PADLIST *padlist = CvPADLIST (cv);
364 AV *newpadlist, *newpad; 550 PADLIST *newpadlist;
551 PAD *newpad;
552 PADOFFSET const off = PadlistMAX (padlist) + 1;
365 553
366 newpadlist = newAV (); 554 newPADLIST(newpadlist);
555#if !PERL_VERSION_ATLEAST(5,15,3)
556 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
367 AvREAL_off (newpadlist); 557 AvREAL_off (newpadlist);
558#endif
368#if PERL_VERSION_ATLEAST (5,10,0) 559#if PERL_VERSION_ATLEAST (5,10,0)
369 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 560 Perl_pad_push (aTHX_ padlist, off);
370#else 561#else
371 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 562 Perl_pad_push (aTHX_ padlist, off, 1);
372#endif 563#endif
373 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 564 newpad = PadlistARRAY (padlist)[off];
374 --AvFILLp (padlist); 565 PadlistMAX (padlist) = off - 1;
375 566
376 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 567 /* Already extended to 2 elements by newPADLIST. */
377 av_store (newpadlist, 1, (SV *)newpad); 568 PadlistMAX (newpadlist) = 1;
569 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
570 PadlistARRAY (newpadlist)[1] = newpad;
378 571
379 return newpadlist; 572 return newpadlist;
380} 573}
381 574
382static void 575ecb_inline void
383free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
384{ 577{
385 /* may be during global destruction */ 578 /* may be during global destruction */
386 if (SvREFCNT (padlist)) 579 if (!IN_DESTRUCT)
387 { 580 {
388 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
389 while (i >= 0) 582
583 while (i > 0) /* special-case index 0 */
390 { 584 {
391 SV **svp = av_fetch (padlist, i--, FALSE); 585 /* we try to be extra-careful here */
392 if (svp) 586 PAD *pad = PadlistARRAY (padlist)[i--];
393 { 587 I32 j = PadMAX (pad);
394 SV *sv;
395 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
396 SvREFCNT_dec (sv);
397 588
589 while (j >= 0)
590 SvREFCNT_dec (PadARRAY (pad)[j--]);
591
592 PadMAX (pad) = -1;
398 SvREFCNT_dec (*svp); 593 SvREFCNT_dec (pad);
399 }
400 } 594 }
401 595
596 SvREFCNT_dec (PadlistNAMES (padlist));
597
598#ifdef NEWPADAPI
599 Safefree (PadlistARRAY (padlist));
600 Safefree (padlist);
601#else
602 AvFILLp (padlist) = -1;
603 AvREAL_off (padlist);
402 SvREFCNT_dec ((SV*)padlist); 604 SvREFCNT_dec ((SV*)padlist);
605#endif
403 } 606 }
404} 607}
405 608
406static int 609static int
407coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 610coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
408{ 611{
409 AV *padlist; 612 PADLIST *padlist;
410 AV *av = (AV *)mg->mg_obj; 613 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
614 size_t len = *(size_t *)mg->mg_ptr;
411 615
412 /* casting is fun. */ 616 /* perl manages to free our internal AV and _then_ call us */
413 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 617 if (IN_DESTRUCT)
618 return 0;
619
620 while (len--)
414 free_padlist (aTHX_ padlist); 621 free_padlist (aTHX_ padlists[len]);
415
416 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
417 622
418 return 0; 623 return 0;
419} 624}
420
421#define CORO_MAGIC_type_cv 26
422#define CORO_MAGIC_type_state PERL_MAGIC_ext
423 625
424static MGVTBL coro_cv_vtbl = { 626static MGVTBL coro_cv_vtbl = {
425 0, 0, 0, 0, 627 0, 0, 0, 0,
426 coro_cv_free 628 coro_cv_free
427}; 629};
428 630
429#define CORO_MAGIC_NN(sv, type) \
430 (expect_true (SvMAGIC (sv)->mg_type == type) \
431 ? SvMAGIC (sv) \
432 : mg_find (sv, type))
433
434#define CORO_MAGIC(sv, type) \
435 (expect_true (SvMAGIC (sv)) \
436 ? CORO_MAGIC_NN (sv, type) \
437 : 0)
438
439#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
440#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
441
442INLINE struct coro *
443SvSTATE_ (pTHX_ SV *coro)
444{
445 HV *stash;
446 MAGIC *mg;
447
448 if (SvROK (coro))
449 coro = SvRV (coro);
450
451 if (expect_false (SvTYPE (coro) != SVt_PVHV))
452 croak ("Coro::State object required");
453
454 stash = SvSTASH (coro);
455 if (expect_false (stash != coro_stash && stash != coro_state_stash))
456 {
457 /* very slow, but rare, check */
458 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
459 croak ("Coro::State object required");
460 }
461
462 mg = CORO_MAGIC_state (coro);
463 return (struct coro *)mg->mg_ptr;
464}
465
466#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
467
468/* faster than SvSTATE, but expects a coroutine hv */
469#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
470#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
471
472/* the next two functions merely cache the padlists */ 631/* the next two functions merely cache the padlists */
473static void 632ecb_inline void
474get_padlist (pTHX_ CV *cv) 633get_padlist (pTHX_ CV *cv)
475{ 634{
476 MAGIC *mg = CORO_MAGIC_cv (cv); 635 MAGIC *mg = CORO_MAGIC_cv (cv);
477 AV *av; 636 size_t *lenp;
478 637
479 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 638 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
480 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 639 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
481 else 640 else
482 { 641 {
483#if CORO_PREFER_PERL_FUNCTIONS 642#if CORO_PREFER_PERL_FUNCTIONS
484 /* this is probably cleaner? but also slower! */ 643 /* this is probably cleaner? but also slower! */
485 /* in practise, it seems to be less stable */ 644 /* in practise, it seems to be less stable */
… …
491 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 650 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
492#endif 651#endif
493 } 652 }
494} 653}
495 654
496static void 655ecb_inline void
497put_padlist (pTHX_ CV *cv) 656put_padlist (pTHX_ CV *cv)
498{ 657{
499 MAGIC *mg = CORO_MAGIC_cv (cv); 658 MAGIC *mg = CORO_MAGIC_cv (cv);
500 AV *av;
501 659
502 if (expect_false (!mg)) 660 if (ecb_expect_false (!mg))
661 {
503 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 662 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
663 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
664 mg->mg_len = 1; /* so mg_free frees mg_ptr */
665 }
666 else
667 Renew (mg->mg_ptr,
668 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
669 char);
504 670
505 av = (AV *)mg->mg_obj; 671 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
506
507 if (expect_false (AvFILLp (av) >= AvMAX (av)))
508 av_extend (av, AvMAX (av) + 1);
509
510 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
511} 672}
512 673
513/** load & save, init *******************************************************/ 674/** load & save, init *******************************************************/
675
676ecb_inline void
677swap_sv (SV *a, SV *b)
678{
679 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
680 SV tmp;
681
682 /* swap sv_any */
683 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
684
685 /* swap sv_flags */
686 SvFLAGS (&tmp) = SvFLAGS (a);
687 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
688 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
689
690#if PERL_VERSION_ATLEAST (5,10,0)
691 /* perl 5.10 and later complicates this _quite_ a bit, but it also
692 * is much faster, so no quarrels here. alternatively, we could
693 * sv_upgrade to avoid this.
694 */
695 {
696 /* swap sv_u */
697 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
698
699 /* if SvANY points to the head, we need to adjust the pointers,
700 * as the pointer for a still points to b, and maybe vice versa.
701 */
702 #define svany_in_head(type) \
703 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
704
705 if (svany_in_head (SvTYPE (a)))
706 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
707
708 if (svany_in_head (SvTYPE (b)))
709 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
710 }
711#endif
712}
713
714/* swap sv heads, at least logically */
715static void
716swap_svs (pTHX_ Coro__State c)
717{
718 int i;
719
720 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
721 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
722}
723
724#define SWAP_SVS(coro) \
725 if (ecb_expect_false ((coro)->swap_sv)) \
726 swap_svs (aTHX_ (coro))
727
728static void
729on_enterleave_call (pTHX_ SV *cb);
514 730
515static void 731static void
516load_perl (pTHX_ Coro__State c) 732load_perl (pTHX_ Coro__State c)
517{ 733{
518 perl_slots *slot = c->slot; 734 perl_slots *slot = c->slot;
519 c->slot = 0; 735 c->slot = 0;
520 736
521 PL_mainstack = c->mainstack; 737 PL_mainstack = c->mainstack;
522 738
523 GvSV (PL_defgv) = slot->defsv; 739#if CORO_JIT
524 GvAV (PL_defgv) = slot->defav; 740 load_perl_slots (slot);
525 GvSV (PL_errgv) = slot->errsv; 741#else
526 GvSV (irsgv) = slot->irsgv;
527 GvHV (PL_hintgv) = slot->hinthv;
528
529 #define VAR(name,type) PL_ ## name = slot->name; 742 #define VARx(name,expr,type) expr = slot->name;
530 # include "state.h" 743 #include "state.h"
531 #undef VAR 744#endif
532 745
533 { 746 {
534 dSP; 747 dSP;
535 748
536 CV *cv; 749 CV *cv;
537 750
538 /* now do the ugly restore mess */ 751 /* now do the ugly restore mess */
539 while (expect_true (cv = (CV *)POPs)) 752 while (ecb_expect_true (cv = (CV *)POPs))
540 { 753 {
541 put_padlist (aTHX_ cv); /* mark this padlist as available */ 754 put_padlist (aTHX_ cv); /* mark this padlist as available */
542 CvDEPTH (cv) = PTR2IV (POPs); 755 CvDEPTH (cv) = PTR2IV (POPs);
543 CvPADLIST (cv) = (AV *)POPs; 756 CvPADLIST (cv) = (PADLIST *)POPs;
544 } 757 }
545 758
546 PUTBACK; 759 PUTBACK;
547 } 760 }
548 761
549 slf_frame = c->slf_frame; 762 slf_frame = c->slf_frame;
550 CORO_THROW = c->except; 763 CORO_THROW = c->except;
764
765 if (ecb_expect_false (enable_times))
766 {
767 if (ecb_expect_false (!times_valid))
768 coro_times_update ();
769
770 coro_times_sub (c);
771 }
772
773 if (ecb_expect_false (c->on_enter))
774 {
775 int i;
776
777 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
778 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
779 }
780
781 SWAP_SVS (c);
551} 782}
552 783
553static void 784static void
554save_perl (pTHX_ Coro__State c) 785save_perl (pTHX_ Coro__State c)
555{ 786{
787 SWAP_SVS (c);
788
789 if (ecb_expect_false (c->on_leave))
790 {
791 int i;
792
793 for (i = AvFILLp (c->on_leave); i >= 0; --i)
794 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
795 }
796
797 times_valid = 0;
798
799 if (ecb_expect_false (enable_times))
800 {
801 coro_times_update (); times_valid = 1;
802 coro_times_add (c);
803 }
804
556 c->except = CORO_THROW; 805 c->except = CORO_THROW;
557 c->slf_frame = slf_frame; 806 c->slf_frame = slf_frame;
558 807
559 { 808 {
560 dSP; 809 dSP;
… …
569 818
570 XPUSHs (Nullsv); 819 XPUSHs (Nullsv);
571 /* this loop was inspired by pp_caller */ 820 /* this loop was inspired by pp_caller */
572 for (;;) 821 for (;;)
573 { 822 {
574 while (expect_true (cxix >= 0)) 823 while (ecb_expect_true (cxix >= 0))
575 { 824 {
576 PERL_CONTEXT *cx = &ccstk[cxix--]; 825 PERL_CONTEXT *cx = &ccstk[cxix--];
577 826
578 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 827 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
579 { 828 {
580 CV *cv = cx->blk_sub.cv; 829 CV *cv = cx->blk_sub.cv;
581 830
582 if (expect_true (CvDEPTH (cv))) 831 if (ecb_expect_true (CvDEPTH (cv)))
583 { 832 {
584 EXTEND (SP, 3); 833 EXTEND (SP, 3);
585 PUSHs ((SV *)CvPADLIST (cv)); 834 PUSHs ((SV *)CvPADLIST (cv));
586 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 835 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
587 PUSHs ((SV *)cv); 836 PUSHs ((SV *)cv);
… …
590 get_padlist (aTHX_ cv); 839 get_padlist (aTHX_ cv);
591 } 840 }
592 } 841 }
593 } 842 }
594 843
595 if (expect_true (top_si->si_type == PERLSI_MAIN)) 844 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
596 break; 845 break;
597 846
598 top_si = top_si->si_prev; 847 top_si = top_si->si_prev;
599 ccstk = top_si->si_cxstack; 848 ccstk = top_si->si_cxstack;
600 cxix = top_si->si_cxix; 849 cxix = top_si->si_cxix;
… …
602 851
603 PUTBACK; 852 PUTBACK;
604 } 853 }
605 854
606 /* allocate some space on the context stack for our purposes */ 855 /* allocate some space on the context stack for our purposes */
607 /* we manually unroll here, as usually 2 slots is enough */ 856 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
608 if (SLOT_COUNT >= 1) CXINC;
609 if (SLOT_COUNT >= 2) CXINC;
610 if (SLOT_COUNT >= 3) CXINC;
611 { 857 {
612 int i; 858 unsigned int i;
859
613 for (i = 3; i < SLOT_COUNT; ++i) 860 for (i = 0; i < SLOT_COUNT; ++i)
614 CXINC; 861 CXINC;
615 } 862
616 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 863 cxstack_ix -= SLOT_COUNT; /* undo allocation */
864 }
617 865
618 c->mainstack = PL_mainstack; 866 c->mainstack = PL_mainstack;
619 867
620 { 868 {
621 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 869 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
622 870
623 slot->defav = GvAV (PL_defgv); 871#if CORO_JIT
624 slot->defsv = DEFSV; 872 save_perl_slots (slot);
625 slot->errsv = ERRSV; 873#else
626 slot->irsgv = GvSV (irsgv);
627 slot->hinthv = GvHV (PL_hintgv);
628
629 #define VAR(name,type) slot->name = PL_ ## name; 874 #define VARx(name,expr,type) slot->name = expr;
630 # include "state.h" 875 #include "state.h"
631 #undef VAR 876#endif
632 } 877 }
633} 878}
634 879
635/* 880/*
636 * allocate various perl stacks. This is almost an exact copy 881 * allocate various perl stacks. This is almost an exact copy
… …
642# define coro_init_stacks(thx) init_stacks () 887# define coro_init_stacks(thx) init_stacks ()
643#else 888#else
644static void 889static void
645coro_init_stacks (pTHX) 890coro_init_stacks (pTHX)
646{ 891{
647 PL_curstackinfo = new_stackinfo(32, 8); 892 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
648 PL_curstackinfo->si_type = PERLSI_MAIN; 893 PL_curstackinfo->si_type = PERLSI_MAIN;
649 PL_curstack = PL_curstackinfo->si_stack; 894 PL_curstack = PL_curstackinfo->si_stack;
650 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 895 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
651 896
652 PL_stack_base = AvARRAY(PL_curstack); 897 PL_stack_base = AvARRAY(PL_curstack);
… …
667#endif 912#endif
668 913
669 New(54,PL_scopestack,8,I32); 914 New(54,PL_scopestack,8,I32);
670 PL_scopestack_ix = 0; 915 PL_scopestack_ix = 0;
671 PL_scopestack_max = 8; 916 PL_scopestack_max = 8;
917#if HAS_SCOPESTACK_NAME
918 New(54,PL_scopestack_name,8,const char*);
919#endif
672 920
673 New(54,PL_savestack,24,ANY); 921 New(54,PL_savestack,24,ANY);
674 PL_savestack_ix = 0; 922 PL_savestack_ix = 0;
675 PL_savestack_max = 24; 923 PL_savestack_max = 24;
676 924
… …
704 } 952 }
705 953
706 Safefree (PL_tmps_stack); 954 Safefree (PL_tmps_stack);
707 Safefree (PL_markstack); 955 Safefree (PL_markstack);
708 Safefree (PL_scopestack); 956 Safefree (PL_scopestack);
957#if HAS_SCOPESTACK_NAME
958 Safefree (PL_scopestack_name);
959#endif
709 Safefree (PL_savestack); 960 Safefree (PL_savestack);
710#if !PERL_VERSION_ATLEAST (5,10,0) 961#if !PERL_VERSION_ATLEAST (5,10,0)
711 Safefree (PL_retstack); 962 Safefree (PL_retstack);
712#endif 963#endif
713} 964}
… …
759#endif 1010#endif
760 1011
761/* 1012/*
762 * This overrides the default magic get method of %SIG elements. 1013 * This overrides the default magic get method of %SIG elements.
763 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1014 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
764 * and instead of tryign to save and restore the hash elements, we just provide 1015 * and instead of trying to save and restore the hash elements (extremely slow),
765 * readback here. 1016 * we just provide our own readback here.
766 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
767 * not expecting this to actually change the hook. This is a potential problem
768 * when a schedule happens then, but we ignore this.
769 */ 1017 */
770static int 1018static int ecb_cold
771coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1019coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
772{ 1020{
773 const char *s = MgPV_nolen_const (mg); 1021 const char *s = MgPV_nolen_const (mg);
774 1022
775 if (*s == '_') 1023 if (*s == '_')
776 { 1024 {
777 SV **svp = 0; 1025 SV **svp = 0;
778 1026
779 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1027 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
780 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1028 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
781 1029
782 if (svp) 1030 if (svp)
783 { 1031 {
784 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1032 SV *ssv;
1033
1034 if (!*svp)
1035 ssv = &PL_sv_undef;
1036 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1037 ssv = sv_2mortal (newRV_inc (*svp));
1038 else
1039 ssv = *svp;
1040
1041 sv_setsv (sv, ssv);
785 return 0; 1042 return 0;
786 } 1043 }
787 } 1044 }
788 1045
789 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1046 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
790} 1047}
791 1048
792static int 1049static int ecb_cold
793coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1050coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
794{ 1051{
795 const char *s = MgPV_nolen_const (mg); 1052 const char *s = MgPV_nolen_const (mg);
796 1053
797 if (*s == '_') 1054 if (*s == '_')
… …
811 } 1068 }
812 1069
813 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1070 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
814} 1071}
815 1072
816static int 1073static int ecb_cold
817coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1074coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
818{ 1075{
819 const char *s = MgPV_nolen_const (mg); 1076 const char *s = MgPV_nolen_const (mg);
820 1077
821 if (*s == '_') 1078 if (*s == '_')
… …
826 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1083 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
827 1084
828 if (svp) 1085 if (svp)
829 { 1086 {
830 SV *old = *svp; 1087 SV *old = *svp;
831 *svp = newSVsv (sv); 1088 *svp = SvOK (sv) ? newSVsv (sv) : 0;
832 SvREFCNT_dec (old); 1089 SvREFCNT_dec (old);
833 return 0; 1090 return 0;
834 } 1091 }
835 } 1092 }
836 1093
… …
854slf_check_repeat (pTHX_ struct CoroSLF *frame) 1111slf_check_repeat (pTHX_ struct CoroSLF *frame)
855{ 1112{
856 return 1; 1113 return 1;
857} 1114}
858 1115
859static UNOP coro_setup_op; 1116static UNOP init_perl_op;
860 1117
861static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1118ecb_noinline static void /* noinline to keep it out of the transfer fast path */
862coro_setup (pTHX_ struct coro *coro) 1119init_perl (pTHX_ struct coro *coro)
863{ 1120{
864 /* 1121 /*
865 * emulate part of the perl startup here. 1122 * emulate part of the perl startup here.
866 */ 1123 */
867 coro_init_stacks (aTHX); 1124 coro_init_stacks (aTHX);
… …
874 PL_comppad_name_fill = 0; 1131 PL_comppad_name_fill = 0;
875 PL_comppad_name_floor = 0; 1132 PL_comppad_name_floor = 0;
876 PL_curpm = 0; 1133 PL_curpm = 0;
877 PL_curpad = 0; 1134 PL_curpad = 0;
878 PL_localizing = 0; 1135 PL_localizing = 0;
879 PL_dirty = 0;
880 PL_restartop = 0; 1136 PL_restartop = 0;
881#if PERL_VERSION_ATLEAST (5,10,0) 1137#if PERL_VERSION_ATLEAST (5,10,0)
882 PL_parser = 0; 1138 PL_parser = 0;
883#endif 1139#endif
884 PL_hints = 0; 1140 PL_hints = 0;
885 1141
886 /* recreate the die/warn hooks */ 1142 /* recreate the die/warn hooks */
887 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1143 PL_diehook = SvREFCNT_inc (rv_diehook);
888 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1144 PL_warnhook = SvREFCNT_inc (rv_warnhook);
889 1145
890 GvSV (PL_defgv) = newSV (0); 1146 GvSV (PL_defgv) = newSV (0);
891 GvAV (PL_defgv) = coro->args; coro->args = 0; 1147 GvAV (PL_defgv) = coro->args; coro->args = 0;
892 GvSV (PL_errgv) = newSV (0); 1148 GvSV (PL_errgv) = newSV (0);
893 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1149 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
894 GvHV (PL_hintgv) = 0; 1150 GvHV (PL_hintgv) = 0;
… …
914 /* this newly created coroutine might be run on an existing cctx which most 1170 /* this newly created coroutine might be run on an existing cctx which most
915 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1171 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
916 */ 1172 */
917 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1173 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
918 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1174 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1175 slf_frame.destroy = 0;
919 1176
920 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1177 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
921 coro_setup_op.op_next = PL_op; 1178 init_perl_op.op_next = PL_op;
922 coro_setup_op.op_type = OP_ENTERSUB; 1179 init_perl_op.op_type = OP_ENTERSUB;
923 coro_setup_op.op_ppaddr = pp_slf; 1180 init_perl_op.op_ppaddr = pp_slf;
924 /* no flags etc. required, as an init function won't be called */ 1181 /* no flags etc. required, as an init function won't be called */
925 1182
926 PL_op = (OP *)&coro_setup_op; 1183 PL_op = (OP *)&init_perl_op;
927 1184
928 /* copy throw, in case it was set before coro_setup */ 1185 /* copy throw, in case it was set before init_perl */
929 CORO_THROW = coro->except; 1186 CORO_THROW = coro->except;
930}
931 1187
1188 SWAP_SVS (coro);
1189
1190 if (ecb_expect_false (enable_times))
1191 {
1192 coro_times_update ();
1193 coro_times_sub (coro);
1194 }
1195}
1196
932static void 1197static void
933coro_destruct (pTHX_ struct coro *coro) 1198coro_unwind_stacks (pTHX)
934{ 1199{
935 if (!IN_DESTRUCT) 1200 if (!IN_DESTRUCT)
936 { 1201 {
937 /* restore all saved variables and stuff */ 1202 /* restore all saved variables and stuff */
938 LEAVE_SCOPE (0); 1203 LEAVE_SCOPE (0);
… …
946 POPSTACK_TO (PL_mainstack); 1211 POPSTACK_TO (PL_mainstack);
947 1212
948 /* unwind main stack */ 1213 /* unwind main stack */
949 dounwind (-1); 1214 dounwind (-1);
950 } 1215 }
1216}
951 1217
952 SvREFCNT_dec (GvSV (PL_defgv)); 1218static void
953 SvREFCNT_dec (GvAV (PL_defgv)); 1219destroy_perl (pTHX_ struct coro *coro)
954 SvREFCNT_dec (GvSV (PL_errgv)); 1220{
955 SvREFCNT_dec (PL_defoutgv); 1221 SV *svf [9];
956 SvREFCNT_dec (PL_rs);
957 SvREFCNT_dec (GvSV (irsgv));
958 SvREFCNT_dec (GvHV (PL_hintgv));
959 1222
960 SvREFCNT_dec (PL_diehook);
961 SvREFCNT_dec (PL_warnhook);
962 1223 {
1224 SV *old_current = SvRV (coro_current);
1225 struct coro *current = SvSTATE (old_current);
1226
1227 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1228
1229 save_perl (aTHX_ current);
1230
1231 /* this will cause transfer_check to croak on block*/
1232 SvRV_set (coro_current, (SV *)coro->hv);
1233
1234 load_perl (aTHX_ coro);
1235
1236 coro_unwind_stacks (aTHX);
1237
1238 /* restore swapped sv's */
1239 SWAP_SVS (coro);
1240
1241 coro_destruct_stacks (aTHX);
1242
1243 /* now save some sv's to be free'd later */
1244 svf [0] = GvSV (PL_defgv);
1245 svf [1] = (SV *)GvAV (PL_defgv);
1246 svf [2] = GvSV (PL_errgv);
1247 svf [3] = (SV *)PL_defoutgv;
1248 svf [4] = PL_rs;
1249 svf [5] = GvSV (irsgv);
1250 svf [6] = (SV *)GvHV (PL_hintgv);
1251 svf [7] = PL_diehook;
1252 svf [8] = PL_warnhook;
1253 assert (9 == sizeof (svf) / sizeof (*svf));
1254
1255 SvRV_set (coro_current, old_current);
1256
1257 load_perl (aTHX_ current);
1258 }
1259
1260 {
1261 unsigned int i;
1262
1263 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1264 SvREFCNT_dec (svf [i]);
1265
963 SvREFCNT_dec (coro->saved_deffh); 1266 SvREFCNT_dec (coro->saved_deffh);
964 SvREFCNT_dec (coro->rouse_cb); 1267 SvREFCNT_dec (coro->rouse_cb);
965 SvREFCNT_dec (coro->invoke_cb); 1268 SvREFCNT_dec (coro->invoke_cb);
966 SvREFCNT_dec (coro->invoke_av); 1269 SvREFCNT_dec (coro->invoke_av);
967 1270 }
968 coro_destruct_stacks (aTHX);
969} 1271}
970 1272
971INLINE void 1273ecb_inline void
972free_coro_mortal (pTHX) 1274free_coro_mortal (pTHX)
973{ 1275{
974 if (expect_true (coro_mortal)) 1276 if (ecb_expect_true (coro_mortal))
975 { 1277 {
976 SvREFCNT_dec (coro_mortal); 1278 SvREFCNT_dec ((SV *)coro_mortal);
977 coro_mortal = 0; 1279 coro_mortal = 0;
978 } 1280 }
979} 1281}
980 1282
981static int 1283static int
… …
1114 1416
1115 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1417 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1116} 1418}
1117 1419
1118/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1420/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1119static void NOINLINE 1421static void ecb_noinline
1120cctx_prepare (pTHX) 1422cctx_prepare (pTHX)
1121{ 1423{
1122 PL_top_env = &PL_start_env; 1424 PL_top_env = &PL_start_env;
1123 1425
1124 if (cctx_current->flags & CC_TRACE) 1426 if (cctx_current->flags & CC_TRACE)
… …
1135 slf_frame.prepare = slf_prepare_set_stacklevel; 1437 slf_frame.prepare = slf_prepare_set_stacklevel;
1136 slf_frame.check = slf_check_set_stacklevel; 1438 slf_frame.check = slf_check_set_stacklevel;
1137} 1439}
1138 1440
1139/* the tail of transfer: execute stuff we can only do after a transfer */ 1441/* the tail of transfer: execute stuff we can only do after a transfer */
1140INLINE void 1442ecb_inline void
1141transfer_tail (pTHX) 1443transfer_tail (pTHX)
1142{ 1444{
1143 free_coro_mortal (aTHX); 1445 free_coro_mortal (aTHX);
1446}
1447
1448/* try to exit the same way perl's main function would do */
1449/* we do not bother resetting the environment or other things *7
1450/* that are not, uhm, essential */
1451/* this obviously also doesn't work when perl is embedded */
1452static void ecb_noinline ecb_cold
1453perlish_exit (pTHX)
1454{
1455 int exitstatus = perl_destruct (PL_curinterp);
1456 perl_free (PL_curinterp);
1457 exit (exitstatus);
1144} 1458}
1145 1459
1146/* 1460/*
1147 * this is a _very_ stripped down perl interpreter ;) 1461 * this is a _very_ stripped down perl interpreter ;)
1148 */ 1462 */
… …
1170 /* somebody or something will hit me for both perl_run and PL_restartop */ 1484 /* somebody or something will hit me for both perl_run and PL_restartop */
1171 PL_restartop = PL_op; 1485 PL_restartop = PL_op;
1172 perl_run (PL_curinterp); 1486 perl_run (PL_curinterp);
1173 /* 1487 /*
1174 * Unfortunately, there is no way to get at the return values of the 1488 * Unfortunately, there is no way to get at the return values of the
1175 * coro body here, as perl_run destroys these 1489 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1490 * runtime errors here, as this is just a random interpreter, not a thread.
1176 */ 1491 */
1177 1492
1178 /* 1493 /*
1179 * If perl-run returns we assume exit() was being called or the coro 1494 * If perl-run returns we assume exit() was being called or the coro
1180 * fell off the end, which seems to be the only valid (non-bug) 1495 * fell off the end, which seems to be the only valid (non-bug)
1181 * reason for perl_run to return. We try to exit by jumping to the 1496 * reason for perl_run to return. We try to mimic whatever perl is normally
1182 * bootstrap-time "top" top_env, as we cannot restore the "main" 1497 * doing in that case. YMMV.
1183 * coroutine as Coro has no such concept.
1184 * This actually isn't valid with the pthread backend, but OSes requiring
1185 * that backend are too broken to do it in a standards-compliant way.
1186 */ 1498 */
1187 PL_top_env = main_top_env; 1499 perlish_exit (aTHX);
1188 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1189 } 1500 }
1190} 1501}
1191 1502
1192static coro_cctx * 1503static coro_cctx *
1193cctx_new () 1504cctx_new (void)
1194{ 1505{
1195 coro_cctx *cctx; 1506 coro_cctx *cctx;
1196 1507
1197 ++cctx_count; 1508 ++cctx_count;
1198 New (0, cctx, 1, coro_cctx); 1509 New (0, cctx, 1, coro_cctx);
… …
1204 return cctx; 1515 return cctx;
1205} 1516}
1206 1517
1207/* create a new cctx only suitable as source */ 1518/* create a new cctx only suitable as source */
1208static coro_cctx * 1519static coro_cctx *
1209cctx_new_empty () 1520cctx_new_empty (void)
1210{ 1521{
1211 coro_cctx *cctx = cctx_new (); 1522 coro_cctx *cctx = cctx_new ();
1212 1523
1213 cctx->sptr = 0; 1524 cctx->sptr = 0;
1214 coro_create (&cctx->cctx, 0, 0, 0, 0); 1525 coro_create (&cctx->cctx, 0, 0, 0, 0);
… …
1216 return cctx; 1527 return cctx;
1217} 1528}
1218 1529
1219/* create a new cctx suitable as destination/running a perl interpreter */ 1530/* create a new cctx suitable as destination/running a perl interpreter */
1220static coro_cctx * 1531static coro_cctx *
1221cctx_new_run () 1532cctx_new_run (void)
1222{ 1533{
1223 coro_cctx *cctx = cctx_new (); 1534 coro_cctx *cctx = cctx_new ();
1224 void *stack_start; 1535 void *stack_start;
1225 size_t stack_size; 1536 size_t stack_size;
1226 1537
1538#if CORO_FIBER
1539
1540 cctx->ssize = cctx_stacksize * sizeof (long);
1541 cctx->sptr = 0;
1542
1543#else
1544
1227#if HAVE_MMAP 1545 #if HAVE_MMAP
1228 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1546 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1229 /* mmap supposedly does allocate-on-write for us */ 1547 /* mmap supposedly does allocate-on-write for us */
1230 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1548 cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0);
1231 1549
1232 if (cctx->sptr != (void *)-1) 1550 if (cctx->sptr != (void *)-1)
1233 { 1551 {
1234 #if CORO_STACKGUARD 1552 #if CORO_STACKGUARD
1235 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1553 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1236 #endif 1554 #endif
1237 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; 1555 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1238 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1556 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1239 cctx->flags |= CC_MAPPED; 1557 cctx->flags |= CC_MAPPED;
1240 } 1558 }
1241 else 1559 else
1242#endif 1560 #endif
1243 { 1561 {
1244 cctx->ssize = cctx_stacksize * (long)sizeof (long); 1562 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1245 New (0, cctx->sptr, cctx_stacksize, long); 1563 New (0, cctx->sptr, cctx_stacksize, long);
1246 1564
1247 if (!cctx->sptr) 1565 if (!cctx->sptr)
1248 { 1566 {
1249 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1567 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1250 _exit (EXIT_FAILURE); 1568 _exit (EXIT_FAILURE);
1251 } 1569 }
1252 1570
1253 stack_start = cctx->sptr; 1571 stack_start = cctx->sptr;
1254 stack_size = cctx->ssize; 1572 stack_size = cctx->ssize;
1255 } 1573 }
1574 #endif
1256 1575
1257 #if CORO_USE_VALGRIND 1576 #if CORO_USE_VALGRIND
1258 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); 1577 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1259 #endif 1578 #endif
1260 1579
… …
1267cctx_destroy (coro_cctx *cctx) 1586cctx_destroy (coro_cctx *cctx)
1268{ 1587{
1269 if (!cctx) 1588 if (!cctx)
1270 return; 1589 return;
1271 1590
1272 assert (cctx != cctx_current);//D temporary 1591 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1273 1592
1274 --cctx_count; 1593 --cctx_count;
1275 coro_destroy (&cctx->cctx); 1594 coro_destroy (&cctx->cctx);
1276 1595
1277 /* coro_transfer creates new, empty cctx's */ 1596 /* coro_transfer creates new, empty cctx's */
… …
1296#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1615#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1297 1616
1298static coro_cctx * 1617static coro_cctx *
1299cctx_get (pTHX) 1618cctx_get (pTHX)
1300{ 1619{
1301 while (expect_true (cctx_first)) 1620 while (ecb_expect_true (cctx_first))
1302 { 1621 {
1303 coro_cctx *cctx = cctx_first; 1622 coro_cctx *cctx = cctx_first;
1304 cctx_first = cctx->next; 1623 cctx_first = cctx->next;
1305 --cctx_idle; 1624 --cctx_idle;
1306 1625
1307 if (expect_true (!CCTX_EXPIRED (cctx))) 1626 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1308 return cctx; 1627 return cctx;
1309 1628
1310 cctx_destroy (cctx); 1629 cctx_destroy (cctx);
1311 } 1630 }
1312 1631
… …
1317cctx_put (coro_cctx *cctx) 1636cctx_put (coro_cctx *cctx)
1318{ 1637{
1319 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1638 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1320 1639
1321 /* free another cctx if overlimit */ 1640 /* free another cctx if overlimit */
1322 if (expect_false (cctx_idle >= cctx_max_idle)) 1641 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1323 { 1642 {
1324 coro_cctx *first = cctx_first; 1643 coro_cctx *first = cctx_first;
1325 cctx_first = first->next; 1644 cctx_first = first->next;
1326 --cctx_idle; 1645 --cctx_idle;
1327 1646
… …
1338static void 1657static void
1339transfer_check (pTHX_ struct coro *prev, struct coro *next) 1658transfer_check (pTHX_ struct coro *prev, struct coro *next)
1340{ 1659{
1341 /* TODO: throwing up here is considered harmful */ 1660 /* TODO: throwing up here is considered harmful */
1342 1661
1343 if (expect_true (prev != next)) 1662 if (ecb_expect_true (prev != next))
1344 { 1663 {
1345 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1664 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1346 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); 1665 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1347 1666
1348 if (expect_false (next->flags & CF_RUNNING)) 1667 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1349 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1350
1351 if (expect_false (next->flags & CF_DESTROYED))
1352 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1668 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1353 1669
1354#if !PERL_VERSION_ATLEAST (5,10,0) 1670#if !PERL_VERSION_ATLEAST (5,10,0)
1355 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1671 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1356 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1672 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1357#endif 1673#endif
1358 } 1674 }
1359} 1675}
1360 1676
1361/* always use the TRANSFER macro */ 1677/* always use the TRANSFER macro */
1362static void NOINLINE /* noinline so we have a fixed stackframe */ 1678static void ecb_noinline /* noinline so we have a fixed stackframe */
1363transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1679transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1364{ 1680{
1365 dSTACKLEVEL; 1681 dSTACKLEVEL;
1366 1682
1367 /* sometimes transfer is only called to set idle_sp */ 1683 /* sometimes transfer is only called to set idle_sp */
1368 if (expect_false (!prev)) 1684 if (ecb_expect_false (!prev))
1369 { 1685 {
1370 cctx_current->idle_sp = STACKLEVEL; 1686 cctx_current->idle_sp = STACKLEVEL;
1371 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1687 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1372 } 1688 }
1373 else if (expect_true (prev != next)) 1689 else if (ecb_expect_true (prev != next))
1374 { 1690 {
1375 coro_cctx *cctx_prev; 1691 coro_cctx *cctx_prev;
1376 1692
1377 if (expect_false (prev->flags & CF_NEW)) 1693 if (ecb_expect_false (prev->flags & CF_NEW))
1378 { 1694 {
1379 /* create a new empty/source context */ 1695 /* create a new empty/source context */
1380 prev->flags &= ~CF_NEW; 1696 prev->flags &= ~CF_NEW;
1381 prev->flags |= CF_RUNNING; 1697 prev->flags |= CF_RUNNING;
1382 } 1698 }
… …
1385 next->flags |= CF_RUNNING; 1701 next->flags |= CF_RUNNING;
1386 1702
1387 /* first get rid of the old state */ 1703 /* first get rid of the old state */
1388 save_perl (aTHX_ prev); 1704 save_perl (aTHX_ prev);
1389 1705
1390 if (expect_false (next->flags & CF_NEW)) 1706 if (ecb_expect_false (next->flags & CF_NEW))
1391 { 1707 {
1392 /* need to start coroutine */ 1708 /* need to start coroutine */
1393 next->flags &= ~CF_NEW; 1709 next->flags &= ~CF_NEW;
1394 /* setup coroutine call */ 1710 /* setup coroutine call */
1395 coro_setup (aTHX_ next); 1711 init_perl (aTHX_ next);
1396 } 1712 }
1397 else 1713 else
1398 load_perl (aTHX_ next); 1714 load_perl (aTHX_ next);
1399 1715
1400 assert (!prev->cctx);//D temporary
1401
1402 /* possibly untie and reuse the cctx */ 1716 /* possibly untie and reuse the cctx */
1403 if (expect_true ( 1717 if (ecb_expect_true (
1404 cctx_current->idle_sp == STACKLEVEL 1718 cctx_current->idle_sp == STACKLEVEL
1405 && !(cctx_current->flags & CC_TRACE) 1719 && !(cctx_current->flags & CC_TRACE)
1406 && !force_cctx 1720 && !force_cctx
1407 )) 1721 ))
1408 { 1722 {
1409 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1723 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1410 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1724 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1411 1725
1412 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1726 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1413 /* without this the next cctx_get might destroy the running cctx while still in use */ 1727 /* without this the next cctx_get might destroy the running cctx while still in use */
1414 if (expect_false (CCTX_EXPIRED (cctx_current))) 1728 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1415 if (expect_true (!next->cctx)) 1729 if (ecb_expect_true (!next->cctx))
1416 next->cctx = cctx_get (aTHX); 1730 next->cctx = cctx_get (aTHX);
1417 1731
1418 cctx_put (cctx_current); 1732 cctx_put (cctx_current);
1419 } 1733 }
1420 else 1734 else
1421 prev->cctx = cctx_current; 1735 prev->cctx = cctx_current;
1422 1736
1423 ++next->usecount; 1737 ++next->usecount;
1424 1738
1425 cctx_prev = cctx_current; 1739 cctx_prev = cctx_current;
1426 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1740 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1427 1741
1428 next->cctx = 0; 1742 next->cctx = 0;
1429 1743
1430 if (expect_false (cctx_prev != cctx_current)) 1744 if (ecb_expect_false (cctx_prev != cctx_current))
1431 { 1745 {
1432 cctx_prev->top_env = PL_top_env; 1746 cctx_prev->top_env = PL_top_env;
1433 PL_top_env = cctx_current->top_env; 1747 PL_top_env = cctx_current->top_env;
1434 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1748 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1435 } 1749 }
… …
1441#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1755#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1442#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1756#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1443 1757
1444/** high level stuff ********************************************************/ 1758/** high level stuff ********************************************************/
1445 1759
1760/* this function is actually Coro, not Coro::State, but we call it from here */
1761/* because it is convenient - but it hasn't been declared yet for that reason */
1446static int 1762static void
1763coro_call_on_destroy (pTHX_ struct coro *coro);
1764
1765static void
1447coro_state_destroy (pTHX_ struct coro *coro) 1766coro_state_destroy (pTHX_ struct coro *coro)
1448{ 1767{
1449 if (coro->flags & CF_DESTROYED) 1768 if (coro->flags & CF_ZOMBIE)
1450 return 0; 1769 return;
1451 1770
1452 if (coro->on_destroy)
1453 coro->on_destroy (aTHX_ coro); 1771 slf_destroy (aTHX_ coro);
1454 1772
1455 coro->flags |= CF_DESTROYED; 1773 coro->flags |= CF_ZOMBIE;
1456 1774
1457 if (coro->flags & CF_READY) 1775 if (coro->flags & CF_READY)
1458 { 1776 {
1459 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1777 /* reduce nready, as destroying a ready coro effectively unreadies it */
1460 /* alternative: look through all ready queues and remove the coro */ 1778 /* alternative: look through all ready queues and remove the coro */
1461 --coro_nready; 1779 --coro_nready;
1462 } 1780 }
1463 else 1781 else
1464 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1782 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1465 1783
1466 if (coro->mainstack && coro->mainstack != main_mainstack) 1784 if (coro->next) coro->next->prev = coro->prev;
1467 { 1785 if (coro->prev) coro->prev->next = coro->next;
1468 struct coro temp; 1786 if (coro == coro_first) coro_first = coro->next;
1469 1787
1470 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1788 if (coro->mainstack
1471 1789 && coro->mainstack != main_mainstack
1472 save_perl (aTHX_ &temp); 1790 && coro->slot
1791 && !PL_dirty)
1473 load_perl (aTHX_ coro); 1792 destroy_perl (aTHX_ coro);
1474
1475 coro_destruct (aTHX_ coro);
1476
1477 load_perl (aTHX_ &temp);
1478
1479 coro->slot = 0;
1480 }
1481 1793
1482 cctx_destroy (coro->cctx); 1794 cctx_destroy (coro->cctx);
1483 SvREFCNT_dec (coro->startcv); 1795 SvREFCNT_dec (coro->startcv);
1484 SvREFCNT_dec (coro->args); 1796 SvREFCNT_dec (coro->args);
1797 SvREFCNT_dec (coro->swap_sv);
1485 SvREFCNT_dec (CORO_THROW); 1798 SvREFCNT_dec (CORO_THROW);
1486 1799
1487 if (coro->next) coro->next->prev = coro->prev; 1800 coro_call_on_destroy (aTHX_ coro);
1488 if (coro->prev) coro->prev->next = coro->next;
1489 if (coro == coro_first) coro_first = coro->next;
1490 1801
1491 return 1; 1802 /* more destruction mayhem in coro_state_free */
1492} 1803}
1493 1804
1494static int 1805static int
1495coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1806coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1496{ 1807{
1497 struct coro *coro = (struct coro *)mg->mg_ptr; 1808 struct coro *coro = (struct coro *)mg->mg_ptr;
1498 mg->mg_ptr = 0; 1809 mg->mg_ptr = 0;
1499 1810
1500 coro->hv = 0;
1501
1502 if (--coro->refcnt < 0)
1503 {
1504 coro_state_destroy (aTHX_ coro); 1811 coro_state_destroy (aTHX_ coro);
1812 SvREFCNT_dec (coro->on_destroy);
1813 SvREFCNT_dec (coro->status);
1814
1505 Safefree (coro); 1815 Safefree (coro);
1506 }
1507 1816
1508 return 0; 1817 return 0;
1509} 1818}
1510 1819
1511static int 1820static int ecb_cold
1512coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1821coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1513{ 1822{
1514 struct coro *coro = (struct coro *)mg->mg_ptr; 1823 /* called when perl clones the current process the slow way (windows process emulation) */
1515 1824 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1516 ++coro->refcnt; 1825 mg->mg_ptr = 0;
1826 mg->mg_virtual = 0;
1517 1827
1518 return 0; 1828 return 0;
1519} 1829}
1520 1830
1521static MGVTBL coro_state_vtbl = { 1831static MGVTBL coro_state_vtbl = {
… …
1544 1854
1545 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1855 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1546 TRANSFER (ta, 1); 1856 TRANSFER (ta, 1);
1547} 1857}
1548 1858
1549/*****************************************************************************/
1550/* gensub: simple closure generation utility */
1551
1552#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1553
1554/* create a closure from XS, returns a code reference */
1555/* the arg can be accessed via GENSUB_ARG from the callback */
1556/* the callback must use dXSARGS/XSRETURN */
1557static SV *
1558gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1559{
1560 CV *cv = (CV *)newSV (0);
1561
1562 sv_upgrade ((SV *)cv, SVt_PVCV);
1563
1564 CvANON_on (cv);
1565 CvISXSUB_on (cv);
1566 CvXSUB (cv) = xsub;
1567 GENSUB_ARG = arg;
1568
1569 return newRV_noinc ((SV *)cv);
1570}
1571
1572/** Coro ********************************************************************/ 1859/** Coro ********************************************************************/
1573 1860
1574INLINE void 1861ecb_inline void
1575coro_enq (pTHX_ struct coro *coro) 1862coro_enq (pTHX_ struct coro *coro)
1576{ 1863{
1577 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1864 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1578}
1579 1865
1580INLINE SV * 1866 SvREFCNT_inc_NN (coro->hv);
1867
1868 coro->next_ready = 0;
1869 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1870 ready [1] = coro;
1871}
1872
1873ecb_inline struct coro *
1581coro_deq (pTHX) 1874coro_deq (pTHX)
1582{ 1875{
1583 int prio; 1876 int prio;
1584 1877
1585 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1878 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1586 if (AvFILLp (coro_ready [prio]) >= 0) 1879 {
1587 return av_shift (coro_ready [prio]); 1880 struct coro **ready = coro_ready [prio];
1881
1882 if (ready [0])
1883 {
1884 struct coro *coro = ready [0];
1885 ready [0] = coro->next_ready;
1886 return coro;
1887 }
1888 }
1588 1889
1589 return 0; 1890 return 0;
1891}
1892
1893static void
1894invoke_sv_ready_hook_helper (void)
1895{
1896 dTHX;
1897 dSP;
1898
1899 ENTER;
1900 SAVETMPS;
1901
1902 PUSHMARK (SP);
1903 PUTBACK;
1904 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1905
1906 FREETMPS;
1907 LEAVE;
1590} 1908}
1591 1909
1592static int 1910static int
1593api_ready (pTHX_ SV *coro_sv) 1911api_ready (pTHX_ SV *coro_sv)
1594{ 1912{
1595 struct coro *coro;
1596 SV *sv_hook;
1597 void (*xs_hook)(void);
1598
1599 coro = SvSTATE (coro_sv); 1913 struct coro *coro = SvSTATE (coro_sv);
1600 1914
1601 if (coro->flags & CF_READY) 1915 if (coro->flags & CF_READY)
1602 return 0; 1916 return 0;
1603 1917
1604 coro->flags |= CF_READY; 1918 coro->flags |= CF_READY;
1605 1919
1606 sv_hook = coro_nready ? 0 : coro_readyhook;
1607 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1608
1609 coro_enq (aTHX_ coro); 1920 coro_enq (aTHX_ coro);
1610 ++coro_nready;
1611 1921
1612 if (sv_hook) 1922 if (!coro_nready++)
1613 { 1923 if (coroapi.readyhook)
1614 dSP; 1924 coroapi.readyhook ();
1615
1616 ENTER;
1617 SAVETMPS;
1618
1619 PUSHMARK (SP);
1620 PUTBACK;
1621 call_sv (sv_hook, G_VOID | G_DISCARD);
1622
1623 FREETMPS;
1624 LEAVE;
1625 }
1626
1627 if (xs_hook)
1628 xs_hook ();
1629 1925
1630 return 1; 1926 return 1;
1631} 1927}
1632 1928
1633static int 1929static int
… …
1635{ 1931{
1636 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1932 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1637} 1933}
1638 1934
1639/* expects to own a reference to next->hv */ 1935/* expects to own a reference to next->hv */
1640INLINE void 1936ecb_inline void
1641prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1937prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1642{ 1938{
1643 SV *prev_sv = SvRV (coro_current); 1939 SV *prev_sv = SvRV (coro_current);
1644 1940
1645 ta->prev = SvSTATE_hv (prev_sv); 1941 ta->prev = SvSTATE_hv (prev_sv);
… …
1656static void 1952static void
1657prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1953prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1658{ 1954{
1659 for (;;) 1955 for (;;)
1660 { 1956 {
1661 SV *next_sv = coro_deq (aTHX); 1957 struct coro *next = coro_deq (aTHX);
1662 1958
1663 if (expect_true (next_sv)) 1959 if (ecb_expect_true (next))
1664 { 1960 {
1665 struct coro *next = SvSTATE_hv (next_sv);
1666
1667 /* cannot transfer to destroyed coros, skip and look for next */ 1961 /* cannot transfer to destroyed coros, skip and look for next */
1668 if (expect_false (next->flags & CF_DESTROYED)) 1962 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1669 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1963 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1670 else 1964 else
1671 { 1965 {
1672 next->flags &= ~CF_READY; 1966 next->flags &= ~CF_READY;
1673 --coro_nready; 1967 --coro_nready;
1674 1968
… …
1680 { 1974 {
1681 /* nothing to schedule: call the idle handler */ 1975 /* nothing to schedule: call the idle handler */
1682 if (SvROK (sv_idle) 1976 if (SvROK (sv_idle)
1683 && SvOBJECT (SvRV (sv_idle))) 1977 && SvOBJECT (SvRV (sv_idle)))
1684 { 1978 {
1979 if (SvRV (sv_idle) == SvRV (coro_current))
1980 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1981
1685 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1982 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1686 api_ready (aTHX_ SvRV (sv_idle)); 1983 api_ready (aTHX_ SvRV (sv_idle));
1687 --coro_nready; 1984 --coro_nready;
1688 } 1985 }
1689 else 1986 else
1690 { 1987 {
1988 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1691 dSP; 1989 dSP;
1692 1990
1693 ENTER; 1991 ENTER;
1694 SAVETMPS; 1992 SAVETMPS;
1695 1993
… …
1702 } 2000 }
1703 } 2001 }
1704 } 2002 }
1705} 2003}
1706 2004
1707INLINE void 2005ecb_inline void
1708prepare_cede (pTHX_ struct coro_transfer_args *ta) 2006prepare_cede (pTHX_ struct coro_transfer_args *ta)
1709{ 2007{
1710 api_ready (aTHX_ coro_current); 2008 api_ready (aTHX_ coro_current);
1711 prepare_schedule (aTHX_ ta); 2009 prepare_schedule (aTHX_ ta);
1712} 2010}
1713 2011
1714INLINE void 2012ecb_inline void
1715prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2013prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1716{ 2014{
1717 SV *prev = SvRV (coro_current); 2015 SV *prev = SvRV (coro_current);
1718 2016
1719 if (coro_nready) 2017 if (coro_nready)
… …
1749{ 2047{
1750 struct coro_transfer_args ta; 2048 struct coro_transfer_args ta;
1751 2049
1752 prepare_cede (aTHX_ &ta); 2050 prepare_cede (aTHX_ &ta);
1753 2051
1754 if (expect_true (ta.prev != ta.next)) 2052 if (ecb_expect_true (ta.prev != ta.next))
1755 { 2053 {
1756 TRANSFER (ta, 1); 2054 TRANSFER (ta, 1);
1757 return 1; 2055 return 1;
1758 } 2056 }
1759 else 2057 else
… …
1802 coro->slot->runops = RUNOPS_DEFAULT; 2100 coro->slot->runops = RUNOPS_DEFAULT;
1803 } 2101 }
1804} 2102}
1805 2103
1806static void 2104static void
2105coro_push_av (pTHX_ AV *av, I32 gimme_v)
2106{
2107 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2108 {
2109 dSP;
2110
2111 if (gimme_v == G_SCALAR)
2112 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2113 else
2114 {
2115 int i;
2116 EXTEND (SP, AvFILLp (av) + 1);
2117
2118 for (i = 0; i <= AvFILLp (av); ++i)
2119 PUSHs (AvARRAY (av)[i]);
2120 }
2121
2122 PUTBACK;
2123 }
2124}
2125
2126static void
2127coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2128{
2129 if (!coro->on_destroy)
2130 coro->on_destroy = newAV ();
2131
2132 av_push (coro->on_destroy, cb);
2133}
2134
2135static void
2136slf_destroy_join (pTHX_ struct CoroSLF *frame)
2137{
2138 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2139}
2140
2141static int
2142slf_check_join (pTHX_ struct CoroSLF *frame)
2143{
2144 struct coro *coro = (struct coro *)frame->data;
2145
2146 if (!coro->status)
2147 return 1;
2148
2149 frame->destroy = 0;
2150
2151 coro_push_av (aTHX_ coro->status, GIMME_V);
2152
2153 SvREFCNT_dec ((SV *)coro->hv);
2154
2155 return 0;
2156}
2157
2158static void
2159slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2160{
2161 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2162
2163 if (items > 1)
2164 croak ("join called with too many arguments");
2165
2166 if (coro->status)
2167 frame->prepare = prepare_nop;
2168 else
2169 {
2170 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2171 frame->prepare = prepare_schedule;
2172 }
2173
2174 frame->check = slf_check_join;
2175 frame->destroy = slf_destroy_join;
2176 frame->data = (void *)coro;
2177 SvREFCNT_inc (coro->hv);
2178}
2179
2180static void
1807coro_call_on_destroy (pTHX_ struct coro *coro) 2181coro_call_on_destroy (pTHX_ struct coro *coro)
1808{ 2182{
1809 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2183 AV *od = coro->on_destroy;
1810 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1811 2184
1812 if (on_destroyp) 2185 if (!od)
1813 { 2186 return;
1814 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1815 2187
1816 while (AvFILLp (on_destroy) >= 0) 2188 while (AvFILLp (od) >= 0)
2189 {
2190 SV *cb = sv_2mortal (av_pop (od));
2191
2192 /* coro hv's (and only hv's at the moment) are supported as well */
2193 if (SvSTATEhv_p (aTHX_ cb))
2194 api_ready (aTHX_ cb);
2195 else
1817 { 2196 {
1818 dSP; /* don't disturb outer sp */ 2197 dSP; /* don't disturb outer sp */
1819 SV *cb = av_pop (on_destroy);
1820
1821 PUSHMARK (SP); 2198 PUSHMARK (SP);
1822 2199
1823 if (statusp) 2200 if (coro->status)
1824 { 2201 {
1825 int i; 2202 PUTBACK;
1826 AV *status = (AV *)SvRV (*statusp); 2203 coro_push_av (aTHX_ coro->status, G_ARRAY);
1827 EXTEND (SP, AvFILLp (status) + 1); 2204 SPAGAIN;
1828
1829 for (i = 0; i <= AvFILLp (status); ++i)
1830 PUSHs (AvARRAY (status)[i]);
1831 } 2205 }
1832 2206
1833 PUTBACK; 2207 PUTBACK;
1834 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2208 call_sv (cb, G_VOID | G_DISCARD);
1835 } 2209 }
1836 } 2210 }
1837} 2211}
1838 2212
1839static void 2213static void
1840slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2214coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1841{ 2215{
2216 AV *av;
2217
2218 if (coro->status)
2219 {
2220 av = coro->status;
2221 av_clear (av);
2222 }
2223 else
2224 av = coro->status = newAV ();
2225
2226 /* items are actually not so common, so optimise for this case */
2227 if (items)
2228 {
1842 int i; 2229 int i;
1843 HV *hv = (HV *)SvRV (coro_current);
1844 AV *av = newAV ();
1845 2230
1846 av_extend (av, items - 1); 2231 av_extend (av, items - 1);
2232
1847 for (i = 0; i < items; ++i) 2233 for (i = 0; i < items; ++i)
1848 av_push (av, SvREFCNT_inc_NN (arg [i])); 2234 av_push (av, SvREFCNT_inc_NN (arg [i]));
2235 }
2236}
1849 2237
1850 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2238static void
1851 2239slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2240{
1852 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2241 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1853 api_ready (aTHX_ sv_manager); 2242 api_ready (aTHX_ sv_manager);
1854 2243
1855 frame->prepare = prepare_schedule; 2244 frame->prepare = prepare_schedule;
1856 frame->check = slf_check_repeat; 2245 frame->check = slf_check_repeat;
2246
2247 /* as a minor optimisation, we could unwind all stacks here */
2248 /* but that puts extra pressure on pp_slf, and is not worth much */
2249 /*coro_unwind_stacks (aTHX);*/
2250}
2251
2252static void
2253slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2254{
2255 HV *coro_hv = (HV *)SvRV (coro_current);
2256
2257 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2258 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2259}
2260
2261static void
2262slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2263{
2264 HV *coro_hv;
2265 struct coro *coro;
2266
2267 if (items <= 0)
2268 croak ("Coro::cancel called without coro object,");
2269
2270 coro = SvSTATE (arg [0]);
2271 coro_hv = coro->hv;
2272
2273 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2274
2275 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2276 {
2277 /* coro currently busy cancelling something, so just notify it */
2278 coro->slf_frame.data = (void *)coro;
2279
2280 frame->prepare = prepare_nop;
2281 frame->check = slf_check_nop;
2282 }
2283 else if (coro_hv == (HV *)SvRV (coro_current))
2284 {
2285 /* cancelling the current coro is allowed, and equals terminate */
2286 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2287 }
2288 else
2289 {
2290 struct coro *self = SvSTATE_current;
2291
2292 /* otherwise we cancel directly, purely for speed reasons
2293 * unfortunately, this requires some magic trickery, as
2294 * somebody else could cancel us, so we have to fight the cancellation.
2295 * this is ugly, and hopefully fully worth the extra speed.
2296 * besides, I can't get the slow-but-safe version working...
2297 */
2298 slf_frame.data = 0;
2299 self->flags |= CF_NOCANCEL;
2300 coro_state_destroy (aTHX_ coro);
2301 self->flags &= ~CF_NOCANCEL;
2302
2303 if (slf_frame.data)
2304 {
2305 /* while we were busy we have been cancelled, so terminate */
2306 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2307 }
2308 else
2309 {
2310 frame->prepare = prepare_nop;
2311 frame->check = slf_check_nop;
2312 }
2313 }
2314}
2315
2316static int
2317slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2318{
2319 frame->prepare = 0;
2320 coro_unwind_stacks (aTHX);
2321
2322 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2323
2324 return 1;
2325}
2326
2327static int
2328safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2329{
2330 if (coro->cctx)
2331 croak ("coro inside C callback, unable to cancel at this time, caught");
2332
2333 if (coro->flags & CF_NEW)
2334 {
2335 coro_set_status (aTHX_ coro, arg, items);
2336 coro_state_destroy (aTHX_ coro);
2337 }
2338 else
2339 {
2340 if (!coro->slf_frame.prepare)
2341 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2342
2343 slf_destroy (aTHX_ coro);
2344
2345 coro_set_status (aTHX_ coro, arg, items);
2346 coro->slf_frame.prepare = prepare_nop;
2347 coro->slf_frame.check = slf_check_safe_cancel;
2348
2349 api_ready (aTHX_ (SV *)coro->hv);
2350 }
2351
2352 return 1;
1857} 2353}
1858 2354
1859/*****************************************************************************/ 2355/*****************************************************************************/
1860/* async pool handler */ 2356/* async pool handler */
1861 2357
… …
1892slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2388slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1893{ 2389{
1894 HV *hv = (HV *)SvRV (coro_current); 2390 HV *hv = (HV *)SvRV (coro_current);
1895 struct coro *coro = SvSTATE_hv ((SV *)hv); 2391 struct coro *coro = SvSTATE_hv ((SV *)hv);
1896 2392
1897 if (expect_true (coro->saved_deffh)) 2393 if (ecb_expect_true (coro->saved_deffh))
1898 { 2394 {
1899 /* subsequent iteration */ 2395 /* subsequent iteration */
1900 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2396 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1901 coro->saved_deffh = 0; 2397 coro->saved_deffh = 0;
1902 2398
1903 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2399 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1904 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2400 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1905 { 2401 {
1906 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2402 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1907 coro->invoke_av = newAV (); 2403 return;
1908
1909 frame->prepare = prepare_nop;
1910 } 2404 }
1911 else 2405 else
1912 { 2406 {
1913 av_clear (GvAV (PL_defgv)); 2407 av_clear (GvAV (PL_defgv));
1914 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2408 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1939 2433
1940static void 2434static void
1941coro_rouse_callback (pTHX_ CV *cv) 2435coro_rouse_callback (pTHX_ CV *cv)
1942{ 2436{
1943 dXSARGS; 2437 dXSARGS;
1944 SV *data = (SV *)GENSUB_ARG; 2438 SV *data = (SV *)S_GENSUB_ARG;
1945 2439
1946 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2440 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1947 { 2441 {
1948 /* first call, set args */ 2442 /* first call, set args */
2443 SV *coro = SvRV (data);
1949 AV *av = newAV (); 2444 AV *av = newAV ();
1950 SV *coro = SvRV (data);
1951 2445
1952 SvRV_set (data, (SV *)av); 2446 SvRV_set (data, (SV *)av);
1953 api_ready (aTHX_ coro);
1954 SvREFCNT_dec (coro);
1955 2447
1956 /* better take a full copy of the arguments */ 2448 /* better take a full copy of the arguments */
1957 while (items--) 2449 while (items--)
1958 av_store (av, items, newSVsv (ST (items))); 2450 av_store (av, items, newSVsv (ST (items)));
2451
2452 api_ready (aTHX_ coro);
2453 SvREFCNT_dec (coro);
1959 } 2454 }
1960 2455
1961 XSRETURN_EMPTY; 2456 XSRETURN_EMPTY;
1962} 2457}
1963 2458
1964static int 2459static int
1965slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2460slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1966{ 2461{
1967 SV *data = (SV *)frame->data; 2462 SV *data = (SV *)frame->data;
1968 2463
1969 if (CORO_THROW) 2464 if (CORO_THROW)
1970 return 0; 2465 return 0;
1971 2466
1972 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2467 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1973 return 1; 2468 return 1;
… …
1980 2475
1981 EXTEND (SP, AvFILLp (av) + 1); 2476 EXTEND (SP, AvFILLp (av) + 1);
1982 for (i = 0; i <= AvFILLp (av); ++i) 2477 for (i = 0; i <= AvFILLp (av); ++i)
1983 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2478 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1984 2479
1985 /* we have stolen the elements, so ste length to zero and free */ 2480 /* we have stolen the elements, so set length to zero and free */
1986 AvFILLp (av) = -1; 2481 AvFILLp (av) = -1;
1987 av_undef (av); 2482 av_undef (av);
1988 2483
1989 PUTBACK; 2484 PUTBACK;
1990 } 2485 }
… …
2009 cb = sv_2mortal (coro->rouse_cb); 2504 cb = sv_2mortal (coro->rouse_cb);
2010 coro->rouse_cb = 0; 2505 coro->rouse_cb = 0;
2011 } 2506 }
2012 2507
2013 if (!SvROK (cb) 2508 if (!SvROK (cb)
2014 || SvTYPE (SvRV (cb)) != SVt_PVCV 2509 || SvTYPE (SvRV (cb)) != SVt_PVCV
2015 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2510 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2016 croak ("Coro::rouse_wait called with illegal callback argument,"); 2511 croak ("Coro::rouse_wait called with illegal callback argument,");
2017 2512
2018 { 2513 {
2019 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2514 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2020 SV *data = (SV *)GENSUB_ARG; 2515 SV *data = (SV *)S_GENSUB_ARG;
2021 2516
2022 frame->data = (void *)data; 2517 frame->data = (void *)data;
2023 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2518 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2024 frame->check = slf_check_rouse_wait; 2519 frame->check = slf_check_rouse_wait;
2025 } 2520 }
… …
2029coro_new_rouse_cb (pTHX) 2524coro_new_rouse_cb (pTHX)
2030{ 2525{
2031 HV *hv = (HV *)SvRV (coro_current); 2526 HV *hv = (HV *)SvRV (coro_current);
2032 struct coro *coro = SvSTATE_hv (hv); 2527 struct coro *coro = SvSTATE_hv (hv);
2033 SV *data = newRV_inc ((SV *)hv); 2528 SV *data = newRV_inc ((SV *)hv);
2034 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2529 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2035 2530
2036 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2531 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2037 SvREFCNT_dec (data); /* magicext increases the refcount */ 2532 SvREFCNT_dec (data); /* magicext increases the refcount */
2038 2533
2039 SvREFCNT_dec (coro->rouse_cb); 2534 SvREFCNT_dec (coro->rouse_cb);
… …
2136static void 2631static void
2137slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2632slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2138{ 2633{
2139 frame->prepare = prepare_cede_notself; 2634 frame->prepare = prepare_cede_notself;
2140 frame->check = slf_check_nop; 2635 frame->check = slf_check_nop;
2636}
2637
2638/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2639static void
2640slf_destroy (pTHX_ struct coro *coro)
2641{
2642 /* this callback is reserved for slf functions needing to do cleanup */
2643 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2644 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2645
2646 /*
2647 * The on_destroy above most likely is from an SLF call.
2648 * Since by definition the SLF call will not finish when we destroy
2649 * the coro, we will have to force-finish it here, otherwise
2650 * cleanup functions cannot call SLF functions.
2651 */
2652 coro->slf_frame.prepare = 0;
2141} 2653}
2142 2654
2143/* 2655/*
2144 * these not obviously related functions are all rolled into one 2656 * these not obviously related functions are all rolled into one
2145 * function to increase chances that they all will call transfer with the same 2657 * function to increase chances that they all will call transfer with the same
… …
2152 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2664 I32 checkmark; /* mark SP to see how many elements check has pushed */
2153 2665
2154 /* set up the slf frame, unless it has already been set-up */ 2666 /* set up the slf frame, unless it has already been set-up */
2155 /* the latter happens when a new coro has been started */ 2667 /* the latter happens when a new coro has been started */
2156 /* or when a new cctx was attached to an existing coroutine */ 2668 /* or when a new cctx was attached to an existing coroutine */
2157 if (expect_true (!slf_frame.prepare)) 2669 if (ecb_expect_true (!slf_frame.prepare))
2158 { 2670 {
2159 /* first iteration */ 2671 /* first iteration */
2160 dSP; 2672 dSP;
2161 SV **arg = PL_stack_base + TOPMARK + 1; 2673 SV **arg = PL_stack_base + TOPMARK + 1;
2162 int items = SP - arg; /* args without function object */ 2674 int items = SP - arg; /* args without function object */
… …
2203 while (slf_frame.check (aTHX_ &slf_frame)); 2715 while (slf_frame.check (aTHX_ &slf_frame));
2204 2716
2205 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2717 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2206 2718
2207 /* exception handling */ 2719 /* exception handling */
2208 if (expect_false (CORO_THROW)) 2720 if (ecb_expect_false (CORO_THROW))
2209 { 2721 {
2210 SV *exception = sv_2mortal (CORO_THROW); 2722 SV *exception = sv_2mortal (CORO_THROW);
2211 2723
2212 CORO_THROW = 0; 2724 CORO_THROW = 0;
2213 sv_setsv (ERRSV, exception); 2725 sv_setsv (ERRSV, exception);
2214 croak (0); 2726 croak (0);
2215 } 2727 }
2216 2728
2217 /* return value handling - mostly like entersub */ 2729 /* return value handling - mostly like entersub */
2218 /* make sure we put something on the stack in scalar context */ 2730 /* make sure we put something on the stack in scalar context */
2219 if (GIMME_V == G_SCALAR) 2731 if (GIMME_V == G_SCALAR
2732 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2220 { 2733 {
2221 dSP; 2734 dSP;
2222 SV **bot = PL_stack_base + checkmark; 2735 SV **bot = PL_stack_base + checkmark;
2223 2736
2224 if (sp == bot) /* too few, push undef */ 2737 if (sp == bot) /* too few, push undef */
2225 bot [1] = &PL_sv_undef; 2738 bot [1] = &PL_sv_undef;
2226 else if (sp != bot + 1) /* too many, take last one */ 2739 else /* too many, take last one */
2227 bot [1] = *sp; 2740 bot [1] = *sp;
2228 2741
2229 SP = bot + 1; 2742 SP = bot + 1;
2230 2743
2231 PUTBACK; 2744 PUTBACK;
… …
2264 if (PL_op->op_flags & OPf_STACKED) 2777 if (PL_op->op_flags & OPf_STACKED)
2265 { 2778 {
2266 if (items > slf_arga) 2779 if (items > slf_arga)
2267 { 2780 {
2268 slf_arga = items; 2781 slf_arga = items;
2269 free (slf_argv); 2782 Safefree (slf_argv);
2270 slf_argv = malloc (slf_arga * sizeof (SV *)); 2783 New (0, slf_argv, slf_arga, SV *);
2271 } 2784 }
2272 2785
2273 slf_argc = items; 2786 slf_argc = items;
2274 2787
2275 for (i = 0; i < items; ++i) 2788 for (i = 0; i < items; ++i)
… …
2280 2793
2281 PL_op->op_ppaddr = pp_slf; 2794 PL_op->op_ppaddr = pp_slf;
2282 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2795 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2283 2796
2284 PL_op = (OP *)&slf_restore; 2797 PL_op = (OP *)&slf_restore;
2798}
2799
2800/*****************************************************************************/
2801/* dynamic wind */
2802
2803static void
2804on_enterleave_call (pTHX_ SV *cb)
2805{
2806 dSP;
2807
2808 PUSHSTACK;
2809
2810 PUSHMARK (SP);
2811 PUTBACK;
2812 call_sv (cb, G_VOID | G_DISCARD);
2813 SPAGAIN;
2814
2815 POPSTACK;
2816}
2817
2818static SV *
2819coro_avp_pop_and_free (pTHX_ AV **avp)
2820{
2821 AV *av = *avp;
2822 SV *res = av_pop (av);
2823
2824 if (AvFILLp (av) < 0)
2825 {
2826 *avp = 0;
2827 SvREFCNT_dec (av);
2828 }
2829
2830 return res;
2831}
2832
2833static void
2834coro_pop_on_enter (pTHX_ void *coro)
2835{
2836 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2837 SvREFCNT_dec (cb);
2838}
2839
2840static void
2841coro_pop_on_leave (pTHX_ void *coro)
2842{
2843 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2844 on_enterleave_call (aTHX_ sv_2mortal (cb));
2285} 2845}
2286 2846
2287/*****************************************************************************/ 2847/*****************************************************************************/
2288/* PerlIO::cede */ 2848/* PerlIO::cede */
2289 2849
… …
2291{ 2851{
2292 PerlIOBuf base; 2852 PerlIOBuf base;
2293 NV next, every; 2853 NV next, every;
2294} PerlIOCede; 2854} PerlIOCede;
2295 2855
2296static IV 2856static IV ecb_cold
2297PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2857PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2298{ 2858{
2299 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2859 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2300 2860
2301 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2861 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2302 self->next = nvtime () + self->every; 2862 self->next = nvtime () + self->every;
2303 2863
2304 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2864 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2305} 2865}
2306 2866
2307static SV * 2867static SV * ecb_cold
2308PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2868PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2309{ 2869{
2310 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2870 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2311 2871
2312 return newSVnv (self->every); 2872 return newSVnv (self->every);
… …
2363/* Coro::Semaphore & Coro::Signal */ 2923/* Coro::Semaphore & Coro::Signal */
2364 2924
2365static SV * 2925static SV *
2366coro_waitarray_new (pTHX_ int count) 2926coro_waitarray_new (pTHX_ int count)
2367{ 2927{
2368 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2928 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2369 AV *av = newAV (); 2929 AV *av = newAV ();
2370 SV **ary; 2930 SV **ary;
2371 2931
2372 /* unfortunately, building manually saves memory */ 2932 /* unfortunately, building manually saves memory */
2373 Newx (ary, 2, SV *); 2933 Newx (ary, 2, SV *);
… …
2424 SvREFCNT_dec (cb); 2984 SvREFCNT_dec (cb);
2425 } 2985 }
2426} 2986}
2427 2987
2428static void 2988static void
2429coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2989coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2430{ 2990{
2431 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2991 /* call $sem->adjust (0) to possibly wake up some other waiters */
2432 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2992 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2433} 2993}
2434 2994
2435static int 2995static int
2436slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2996slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2437{ 2997{
2438 AV *av = (AV *)frame->data; 2998 AV *av = (AV *)frame->data;
2439 SV *count_sv = AvARRAY (av)[0]; 2999 SV *count_sv = AvARRAY (av)[0];
3000 SV *coro_hv = SvRV (coro_current);
2440 3001
2441 /* if we are about to throw, don't actually acquire the lock, just throw */ 3002 /* if we are about to throw, don't actually acquire the lock, just throw */
2442 if (CORO_THROW) 3003 if (CORO_THROW)
2443 return 0; 3004 return 0;
2444 else if (SvIVX (count_sv) > 0) 3005 else if (SvIVX (count_sv) > 0)
2445 { 3006 {
2446 SvSTATE_current->on_destroy = 0; 3007 frame->destroy = 0;
2447 3008
2448 if (acquire) 3009 if (acquire)
2449 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3010 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2450 else 3011 else
2451 coro_semaphore_adjust (aTHX_ av, 0); 3012 coro_semaphore_adjust (aTHX_ av, 0);
… …
2456 { 3017 {
2457 int i; 3018 int i;
2458 /* if we were woken up but can't down, we look through the whole */ 3019 /* if we were woken up but can't down, we look through the whole */
2459 /* waiters list and only add us if we aren't in there already */ 3020 /* waiters list and only add us if we aren't in there already */
2460 /* this avoids some degenerate memory usage cases */ 3021 /* this avoids some degenerate memory usage cases */
2461 3022 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2462 for (i = 1; i <= AvFILLp (av); ++i)
2463 if (AvARRAY (av)[i] == SvRV (coro_current)) 3023 if (AvARRAY (av)[i] == coro_hv)
2464 return 1; 3024 return 1;
2465 3025
2466 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3026 av_push (av, SvREFCNT_inc (coro_hv));
2467 return 1; 3027 return 1;
2468 } 3028 }
2469} 3029}
2470 3030
2471static int 3031static int
… …
2494 { 3054 {
2495 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3055 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2496 3056
2497 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3057 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2498 frame->prepare = prepare_schedule; 3058 frame->prepare = prepare_schedule;
2499
2500 /* to avoid race conditions when a woken-up coro gets terminated */ 3059 /* to avoid race conditions when a woken-up coro gets terminated */
2501 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3060 /* we arrange for a temporary on_destroy that calls adjust (0) */
2502 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3061 frame->destroy = coro_semaphore_destroy;
2503 } 3062 }
2504} 3063}
2505 3064
2506static void 3065static void
2507slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3066slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2515{ 3074{
2516 if (items >= 2) 3075 if (items >= 2)
2517 { 3076 {
2518 /* callback form */ 3077 /* callback form */
2519 AV *av = (AV *)SvRV (arg [0]); 3078 AV *av = (AV *)SvRV (arg [0]);
2520 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3079 SV *cb_cv = s_get_cv_croak (arg [1]);
2521 3080
2522 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3081 av_push (av, SvREFCNT_inc_NN (cb_cv));
2523 3082
2524 if (SvIVX (AvARRAY (av)[0]) > 0) 3083 if (SvIVX (AvARRAY (av)[0]) > 0)
2525 coro_semaphore_adjust (aTHX_ av, 0); 3084 coro_semaphore_adjust (aTHX_ av, 0);
2526 3085
2527 frame->prepare = prepare_nop; 3086 frame->prepare = prepare_nop;
… …
2551 AvARRAY (av)[0] = AvARRAY (av)[1]; 3110 AvARRAY (av)[0] = AvARRAY (av)[1];
2552 AvARRAY (av)[1] = cb; 3111 AvARRAY (av)[1] = cb;
2553 3112
2554 cb = av_shift (av); 3113 cb = av_shift (av);
2555 3114
3115 if (SvTYPE (cb) == SVt_PVCV)
3116 {
3117 dSP;
3118 PUSHMARK (SP);
3119 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3120 PUTBACK;
3121 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3122 }
3123 else
3124 {
2556 api_ready (aTHX_ cb); 3125 api_ready (aTHX_ cb);
2557 sv_setiv (cb, 0); /* signal waiter */ 3126 sv_setiv (cb, 0); /* signal waiter */
3127 }
3128
2558 SvREFCNT_dec (cb); 3129 SvREFCNT_dec (cb);
2559 3130
2560 --count; 3131 --count;
2561 } 3132 }
2562} 3133}
… …
2571static void 3142static void
2572slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3143slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2573{ 3144{
2574 AV *av = (AV *)SvRV (arg [0]); 3145 AV *av = (AV *)SvRV (arg [0]);
2575 3146
3147 if (items >= 2)
3148 {
3149 SV *cb_cv = s_get_cv_croak (arg [1]);
3150 av_push (av, SvREFCNT_inc_NN (cb_cv));
3151
2576 if (SvIVX (AvARRAY (av)[0])) 3152 if (SvIVX (AvARRAY (av)[0]))
3153 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3154
3155 frame->prepare = prepare_nop;
3156 frame->check = slf_check_nop;
3157 }
3158 else if (SvIVX (AvARRAY (av)[0]))
2577 { 3159 {
2578 SvIVX (AvARRAY (av)[0]) = 0; 3160 SvIVX (AvARRAY (av)[0]) = 0;
2579 frame->prepare = prepare_nop; 3161 frame->prepare = prepare_nop;
2580 frame->check = slf_check_nop; 3162 frame->check = slf_check_nop;
2581 } 3163 }
2582 else 3164 else
2583 { 3165 {
2584 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3166 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2585 3167
2586 av_push (av, waiter); 3168 av_push (av, waiter);
2587 3169
2588 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3170 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2589 frame->prepare = prepare_schedule; 3171 frame->prepare = prepare_schedule;
… …
2607 3189
2608static void 3190static void
2609coro_aio_callback (pTHX_ CV *cv) 3191coro_aio_callback (pTHX_ CV *cv)
2610{ 3192{
2611 dXSARGS; 3193 dXSARGS;
2612 AV *state = (AV *)GENSUB_ARG; 3194 AV *state = (AV *)S_GENSUB_ARG;
2613 SV *coro = av_pop (state); 3195 SV *coro = av_pop (state);
2614 SV *data_sv = newSV (sizeof (struct io_state)); 3196 SV *data_sv = newSV (sizeof (struct io_state));
2615 3197
2616 av_extend (state, items - 1); 3198 av_extend (state, items - 1);
2617 3199
… …
2702 dSP; 3284 dSP;
2703 3285
2704 static SV *prio_cv; 3286 static SV *prio_cv;
2705 static SV *prio_sv; 3287 static SV *prio_sv;
2706 3288
2707 if (expect_false (!prio_cv)) 3289 if (ecb_expect_false (!prio_cv))
2708 { 3290 {
2709 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3291 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2710 prio_sv = newSViv (0); 3292 prio_sv = newSViv (0);
2711 } 3293 }
2712 3294
… …
2731 3313
2732 for (i = 0; i < items; ++i) 3314 for (i = 0; i < items; ++i)
2733 PUSHs (arg [i]); 3315 PUSHs (arg [i]);
2734 3316
2735 /* now push the callback closure */ 3317 /* now push the callback closure */
2736 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3318 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2737 3319
2738 /* now call the AIO function - we assume our request is uncancelable */ 3320 /* now call the AIO function - we assume our request is uncancelable */
2739 PUTBACK; 3321 PUTBACK;
2740 call_sv ((SV *)req, G_VOID | G_DISCARD); 3322 call_sv ((SV *)req, G_VOID | G_DISCARD);
2741 } 3323 }
2742 3324
2743 /* now that the requets is going, we loop toll we have a result */ 3325 /* now that the request is going, we loop till we have a result */
2744 frame->data = (void *)state; 3326 frame->data = (void *)state;
2745 frame->prepare = prepare_schedule; 3327 frame->prepare = prepare_schedule;
2746 frame->check = slf_check_aio_req; 3328 frame->check = slf_check_aio_req;
2747} 3329}
2748 3330
… …
2758 3340
2759/*****************************************************************************/ 3341/*****************************************************************************/
2760 3342
2761#if CORO_CLONE 3343#if CORO_CLONE
2762# include "clone.c" 3344# include "clone.c"
3345#endif
3346
3347/*****************************************************************************/
3348
3349static SV *
3350coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3351{
3352 SV *coro_sv;
3353 struct coro *coro;
3354 MAGIC *mg;
3355 HV *hv;
3356 SV *cb;
3357 int i;
3358
3359 if (argc > 0)
3360 {
3361 cb = s_get_cv_croak (argv [0]);
3362
3363 if (!is_coro)
3364 {
3365 if (CvISXSUB (cb))
3366 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3367
3368 if (!CvROOT (cb))
3369 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3370 }
3371 }
3372
3373 Newz (0, coro, 1, struct coro);
3374 coro->args = newAV ();
3375 coro->flags = CF_NEW;
3376
3377 if (coro_first) coro_first->prev = coro;
3378 coro->next = coro_first;
3379 coro_first = coro;
3380
3381 coro->hv = hv = newHV ();
3382 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3383 mg->mg_flags |= MGf_DUP;
3384 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3385
3386 if (argc > 0)
3387 {
3388 av_extend (coro->args, argc + is_coro - 1);
3389
3390 if (is_coro)
3391 {
3392 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3393 cb = (SV *)cv_coro_run;
3394 }
3395
3396 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3397
3398 for (i = 1; i < argc; i++)
3399 av_push (coro->args, newSVsv (argv [i]));
3400 }
3401
3402 return coro_sv;
3403}
3404
3405#ifndef __cplusplus
3406ecb_cold XS(boot_Coro__State);
3407#endif
3408
3409#if CORO_JIT
3410
3411static void ecb_noinline ecb_cold
3412pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3413{
3414 dSP;
3415 AV *av = newAV ();
3416
3417 av_store (av, 3, newSVuv (d));
3418 av_store (av, 2, newSVuv (c));
3419 av_store (av, 1, newSVuv (b));
3420 av_store (av, 0, newSVuv (a));
3421
3422 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3423
3424 PUTBACK;
3425}
3426
3427static void ecb_noinline ecb_cold
3428jit_init (pTHX)
3429{
3430 dSP;
3431 SV *load, *save;
3432 char *map_base;
3433 char *load_ptr, *save_ptr;
3434 STRLEN load_len, save_len, map_len;
3435 int count;
3436
3437 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3438
3439 PUSHMARK (SP);
3440 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3441 #include "state.h"
3442 count = call_pv ("Coro::State::_jit", G_ARRAY);
3443 SPAGAIN;
3444
3445 save = POPs; save_ptr = SvPVbyte (save, save_len);
3446 load = POPs; load_ptr = SvPVbyte (load, load_len);
3447
3448 map_len = load_len + save_len + 16;
3449
3450 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3451
3452 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3453
3454 load_perl_slots = (load_save_perl_slots_type)map_base;
3455 memcpy (map_base, load_ptr, load_len);
3456
3457 map_base += (load_len + 15) & ~15;
3458
3459 save_perl_slots = (load_save_perl_slots_type)map_base;
3460 memcpy (map_base, save_ptr, save_len);
3461
3462 /* we are good citizens and try to make the page read-only, so the evil evil */
3463 /* hackers might have it a bit more difficult */
3464 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3465
3466 PUTBACK;
3467 eval_pv ("undef &Coro::State::_jit", 1);
3468}
3469
2763#endif 3470#endif
2764 3471
2765MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3472MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2766 3473
2767PROTOTYPES: DISABLE 3474PROTOTYPES: DISABLE
… …
2772# if CORO_PTHREAD 3479# if CORO_PTHREAD
2773 coro_thx = PERL_GET_CONTEXT; 3480 coro_thx = PERL_GET_CONTEXT;
2774# endif 3481# endif
2775#endif 3482#endif
2776 BOOT_PAGESIZE; 3483 BOOT_PAGESIZE;
3484
3485 /* perl defines these to check for existance first, but why it doesn't */
3486 /* just create them one at init time is not clear to me, except for */
3487 /* programs trying to delete them, but... */
3488 /* anyway, we declare this as invalid and make sure they are initialised here */
3489 DEFSV;
3490 ERRSV;
2777 3491
2778 cctx_current = cctx_new_empty (); 3492 cctx_current = cctx_new_empty ();
2779 3493
2780 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3494 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2781 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3495 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
2821 coroapi.prepare_nop = prepare_nop; 3535 coroapi.prepare_nop = prepare_nop;
2822 coroapi.prepare_schedule = prepare_schedule; 3536 coroapi.prepare_schedule = prepare_schedule;
2823 coroapi.prepare_cede = prepare_cede; 3537 coroapi.prepare_cede = prepare_cede;
2824 coroapi.prepare_cede_notself = prepare_cede_notself; 3538 coroapi.prepare_cede_notself = prepare_cede_notself;
2825 3539
2826 { 3540 time_init (aTHX);
2827 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2828 3541
2829 if (!svp) croak ("Time::HiRes is required");
2830 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2831
2832 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2833 }
2834
2835 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3542 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3543#if CORO_JIT
3544 PUTBACK;
3545 jit_init (aTHX);
3546 SPAGAIN;
3547#endif
2836} 3548}
2837 3549
2838SV * 3550SV *
2839new (char *klass, ...) 3551new (SV *klass, ...)
2840 ALIAS: 3552 ALIAS:
2841 Coro::new = 1 3553 Coro::new = 1
2842 CODE: 3554 CODE:
2843{ 3555 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2844 struct coro *coro; 3556 OUTPUT:
2845 MAGIC *mg;
2846 HV *hv;
2847 CV *cb;
2848 int i;
2849
2850 if (items > 1)
2851 {
2852 cb = coro_sv_2cv (aTHX_ ST (1));
2853
2854 if (!ix)
2855 {
2856 if (CvISXSUB (cb))
2857 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2858
2859 if (!CvROOT (cb))
2860 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2861 }
2862 }
2863
2864 Newz (0, coro, 1, struct coro);
2865 coro->args = newAV ();
2866 coro->flags = CF_NEW;
2867
2868 if (coro_first) coro_first->prev = coro;
2869 coro->next = coro_first;
2870 coro_first = coro;
2871
2872 coro->hv = hv = newHV ();
2873 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2874 mg->mg_flags |= MGf_DUP;
2875 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2876
2877 if (items > 1)
2878 {
2879 av_extend (coro->args, items - 1 + ix - 1);
2880
2881 if (ix)
2882 {
2883 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2884 cb = cv_coro_run;
2885 }
2886
2887 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2888
2889 for (i = 2; i < items; i++)
2890 av_push (coro->args, newSVsv (ST (i)));
2891 }
2892}
2893 OUTPUT:
2894 RETVAL 3557 RETVAL
2895 3558
2896void 3559void
2897transfer (...) 3560transfer (...)
2898 PROTOTYPE: $$ 3561 PROTOTYPE: $$
2899 CODE: 3562 CODE:
2900 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3563 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2901 3564
2902bool
2903_destroy (SV *coro_sv)
2904 CODE:
2905 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2906 OUTPUT:
2907 RETVAL
2908
2909void 3565void
2910_exit (int code) 3566_exit (int code)
2911 PROTOTYPE: $ 3567 PROTOTYPE: $
2912 CODE: 3568 CODE:
2913 _exit (code); 3569 _exit (code);
… …
2915SV * 3571SV *
2916clone (Coro::State coro) 3572clone (Coro::State coro)
2917 CODE: 3573 CODE:
2918{ 3574{
2919#if CORO_CLONE 3575#if CORO_CLONE
2920 struct coro *ncoro = coro_clone (coro); 3576 struct coro *ncoro = coro_clone (aTHX_ coro);
2921 MAGIC *mg; 3577 MAGIC *mg;
2922 /* TODO: too much duplication */ 3578 /* TODO: too much duplication */
2923 ncoro->hv = newHV (); 3579 ncoro->hv = newHV ();
2924 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); 3580 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2925 mg->mg_flags |= MGf_DUP; 3581 mg->mg_flags |= MGf_DUP;
… …
2973void 3629void
2974list () 3630list ()
2975 PROTOTYPE: 3631 PROTOTYPE:
2976 PPCODE: 3632 PPCODE:
2977{ 3633{
2978 struct coro *coro; 3634 struct coro *coro;
2979 for (coro = coro_first; coro; coro = coro->next) 3635 for (coro = coro_first; coro; coro = coro->next)
2980 if (coro->hv) 3636 if (coro->hv)
2981 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3637 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2982} 3638}
2983 3639
… …
2987 eval = 1 3643 eval = 1
2988 CODE: 3644 CODE:
2989{ 3645{
2990 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3646 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2991 { 3647 {
2992 struct coro temp; 3648 struct coro *current = SvSTATE_current;
3649 struct CoroSLF slf_save;
2993 3650
2994 if (!(coro->flags & CF_RUNNING)) 3651 if (current != coro)
2995 { 3652 {
2996 PUTBACK; 3653 PUTBACK;
2997 save_perl (aTHX_ &temp); 3654 save_perl (aTHX_ current);
2998 load_perl (aTHX_ coro); 3655 load_perl (aTHX_ coro);
3656 /* the coro is most likely in an active SLF call.
3657 * while not strictly required (the code we execute is
3658 * not allowed to call any SLF functions), it's cleaner
3659 * to reinitialise the slf_frame and restore it later.
3660 * This might one day allow us to actually do SLF calls
3661 * from code executed here.
3662 */
3663 slf_save = slf_frame;
3664 slf_frame.prepare = 0;
3665 SPAGAIN;
2999 } 3666 }
3000 3667
3001 {
3002 dSP;
3003 ENTER;
3004 SAVETMPS;
3005 PUTBACK;
3006 PUSHSTACK; 3668 PUSHSTACK;
3669
3007 PUSHMARK (SP); 3670 PUSHMARK (SP);
3671 PUTBACK;
3008 3672
3009 if (ix) 3673 if (ix)
3010 eval_sv (coderef, 0); 3674 eval_sv (coderef, 0);
3011 else 3675 else
3012 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3676 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3013 3677
3014 POPSTACK; 3678 POPSTACK;
3015 SPAGAIN; 3679 SPAGAIN;
3016 FREETMPS;
3017 LEAVE;
3018 PUTBACK;
3019 }
3020 3680
3021 if (!(coro->flags & CF_RUNNING)) 3681 if (current != coro)
3022 { 3682 {
3683 PUTBACK;
3684 slf_frame = slf_save;
3023 save_perl (aTHX_ coro); 3685 save_perl (aTHX_ coro);
3024 load_perl (aTHX_ &temp); 3686 load_perl (aTHX_ current);
3025 SPAGAIN; 3687 SPAGAIN;
3026 } 3688 }
3027 } 3689 }
3028} 3690}
3029 3691
… …
3032 PROTOTYPE: $ 3694 PROTOTYPE: $
3033 ALIAS: 3695 ALIAS:
3034 is_ready = CF_READY 3696 is_ready = CF_READY
3035 is_running = CF_RUNNING 3697 is_running = CF_RUNNING
3036 is_new = CF_NEW 3698 is_new = CF_NEW
3037 is_destroyed = CF_DESTROYED 3699 is_destroyed = CF_ZOMBIE
3700 is_zombie = CF_ZOMBIE
3701 is_suspended = CF_SUSPENDED
3038 CODE: 3702 CODE:
3039 RETVAL = boolSV (coro->flags & ix); 3703 RETVAL = boolSV (coro->flags & ix);
3040 OUTPUT: 3704 OUTPUT:
3041 RETVAL 3705 RETVAL
3042 3706
3043void 3707void
3044throw (Coro::State self, SV *throw = &PL_sv_undef) 3708throw (SV *self, SV *exception = &PL_sv_undef)
3045 PROTOTYPE: $;$ 3709 PROTOTYPE: $;$
3046 CODE: 3710 CODE:
3047{ 3711{
3712 struct coro *coro = SvSTATE (self);
3048 struct coro *current = SvSTATE_current; 3713 struct coro *current = SvSTATE_current;
3049 SV **throwp = self == current ? &CORO_THROW : &self->except; 3714 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3050 SvREFCNT_dec (*throwp); 3715 SvREFCNT_dec (*exceptionp);
3051 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3716 SvGETMAGIC (exception);
3717 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3718
3719 api_ready (aTHX_ self);
3052} 3720}
3053 3721
3054void 3722void
3055api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3723api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3056 PROTOTYPE: $;$ 3724 PROTOTYPE: $;$
… …
3107 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3775 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3108 3776
3109 SV *tmp = *src; *src = *dst; *dst = tmp; 3777 SV *tmp = *src; *src = *dst; *dst = tmp;
3110 } 3778 }
3111 3779
3780void
3781cancel (Coro::State self)
3782 CODE:
3783 coro_state_destroy (aTHX_ self);
3784
3785SV *
3786enable_times (int enabled = enable_times)
3787 CODE:
3788{
3789 RETVAL = boolSV (enable_times);
3790
3791 if (enabled != enable_times)
3792 {
3793 enable_times = enabled;
3794
3795 coro_times_update ();
3796 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3797 }
3798}
3799 OUTPUT:
3800 RETVAL
3801
3802void
3803times (Coro::State self)
3804 PPCODE:
3805{
3806 struct coro *current = SvSTATE (coro_current);
3807
3808 if (ecb_expect_false (current == self))
3809 {
3810 coro_times_update ();
3811 coro_times_add (SvSTATE (coro_current));
3812 }
3813
3814 EXTEND (SP, 2);
3815 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3816 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3817
3818 if (ecb_expect_false (current == self))
3819 coro_times_sub (SvSTATE (coro_current));
3820}
3821
3822void
3823swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3824 CODE:
3825{
3826 struct coro *current = SvSTATE_current;
3827
3828 if (current == coro)
3829 SWAP_SVS (current);
3830
3831 if (!coro->swap_sv)
3832 coro->swap_sv = newAV ();
3833
3834 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3835 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3836
3837 if (current == coro)
3838 SWAP_SVS (current);
3839}
3840
3112 3841
3113MODULE = Coro::State PACKAGE = Coro 3842MODULE = Coro::State PACKAGE = Coro
3114 3843
3115BOOT: 3844BOOT:
3116{ 3845{
3117 int i;
3118
3119 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3846 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3120 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3847 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3121 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3848 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3122 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3123 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3849 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3124 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3850 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3125 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3851 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3126 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3852 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3127 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3853 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3128 3854
3129 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3855 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3130 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3856 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3131 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3857 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3132 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3858 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3133 3859
3134 coro_stash = gv_stashpv ("Coro", TRUE); 3860 coro_stash = gv_stashpv ("Coro", TRUE);
3135 3861
3136 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3862 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3137 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3863 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3138 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3864 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3139 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3865 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3140 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3866 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3141 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3867 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3142
3143 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3144 coro_ready[i] = newAV ();
3145 3868
3146 { 3869 {
3147 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3870 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3148 3871
3149 coroapi.schedule = api_schedule; 3872 coroapi.schedule = api_schedule;
… …
3159 sv_setiv (sv, (IV)&coroapi); 3882 sv_setiv (sv, (IV)&coroapi);
3160 SvREADONLY_on (sv); 3883 SvREADONLY_on (sv);
3161 } 3884 }
3162} 3885}
3163 3886
3887SV *
3888async (...)
3889 PROTOTYPE: &@
3890 CODE:
3891 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3892 api_ready (aTHX_ RETVAL);
3893 OUTPUT:
3894 RETVAL
3895
3896void
3897_destroy (Coro::State coro)
3898 CODE:
3899 /* used by the manager thread */
3900 coro_state_destroy (aTHX_ coro);
3901
3902void
3903on_destroy (Coro::State coro, SV *cb)
3904 CODE:
3905 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3906
3907void
3908join (...)
3909 CODE:
3910 CORO_EXECUTE_SLF_XS (slf_init_join);
3911
3164void 3912void
3165terminate (...) 3913terminate (...)
3166 CODE: 3914 CODE:
3167 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3915 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3168 3916
3169void 3917void
3918cancel (...)
3919 CODE:
3920 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3921
3922int
3923safe_cancel (Coro::State self, ...)
3924 C_ARGS: aTHX_ self, &ST (1), items - 1
3925
3926void
3170schedule (...) 3927schedule (...)
3171 CODE: 3928 CODE:
3172 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3929 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3173 3930
3174void 3931void
… …
3188 3945
3189void 3946void
3190cede_notself (...) 3947cede_notself (...)
3191 CODE: 3948 CODE:
3192 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3949 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3193
3194void
3195_cancel (Coro::State self)
3196 CODE:
3197 coro_state_destroy (aTHX_ self);
3198 coro_call_on_destroy (aTHX_ self);
3199 3950
3200void 3951void
3201_set_current (SV *current) 3952_set_current (SV *current)
3202 PROTOTYPE: $ 3953 PROTOTYPE: $
3203 CODE: 3954 CODE:
… …
3207void 3958void
3208_set_readyhook (SV *hook) 3959_set_readyhook (SV *hook)
3209 PROTOTYPE: $ 3960 PROTOTYPE: $
3210 CODE: 3961 CODE:
3211 SvREFCNT_dec (coro_readyhook); 3962 SvREFCNT_dec (coro_readyhook);
3963 SvGETMAGIC (hook);
3964 if (SvOK (hook))
3965 {
3212 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3966 coro_readyhook = newSVsv (hook);
3967 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3968 }
3969 else
3970 {
3971 coro_readyhook = 0;
3972 CORO_READYHOOK = 0;
3973 }
3213 3974
3214int 3975int
3215prio (Coro::State coro, int newprio = 0) 3976prio (Coro::State coro, int newprio = 0)
3216 PROTOTYPE: $;$ 3977 PROTOTYPE: $;$
3217 ALIAS: 3978 ALIAS:
… …
3223 if (items > 1) 3984 if (items > 1)
3224 { 3985 {
3225 if (ix) 3986 if (ix)
3226 newprio = coro->prio - newprio; 3987 newprio = coro->prio - newprio;
3227 3988
3228 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3989 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3229 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3990 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3230 3991
3231 coro->prio = newprio; 3992 coro->prio = newprio;
3232 } 3993 }
3233} 3994}
3234 OUTPUT: 3995 OUTPUT:
… …
3249 RETVAL = coro_nready; 4010 RETVAL = coro_nready;
3250 OUTPUT: 4011 OUTPUT:
3251 RETVAL 4012 RETVAL
3252 4013
3253void 4014void
4015suspend (Coro::State self)
4016 PROTOTYPE: $
4017 CODE:
4018 self->flags |= CF_SUSPENDED;
4019
4020void
4021resume (Coro::State self)
4022 PROTOTYPE: $
4023 CODE:
4024 self->flags &= ~CF_SUSPENDED;
4025
4026void
3254_pool_handler (...) 4027_pool_handler (...)
3255 CODE: 4028 CODE:
3256 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 4029 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3257 4030
3258void 4031void
… …
3269 for (i = 1; i < items; ++i) 4042 for (i = 1; i < items; ++i)
3270 av_push (av, SvREFCNT_inc_NN (ST (i))); 4043 av_push (av, SvREFCNT_inc_NN (ST (i)));
3271 4044
3272 if ((SV *)hv == &PL_sv_undef) 4045 if ((SV *)hv == &PL_sv_undef)
3273 { 4046 {
3274 PUSHMARK (SP); 4047 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3275 EXTEND (SP, 2);
3276 PUSHs (sv_Coro);
3277 PUSHs ((SV *)cv_pool_handler);
3278 PUTBACK;
3279 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3280 SPAGAIN;
3281
3282 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4048 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4049 SvREFCNT_dec (sv);
3283 } 4050 }
3284 4051
3285 { 4052 {
3286 struct coro *coro = SvSTATE_hv (hv); 4053 struct coro *coro = SvSTATE_hv (hv);
3287 4054
… …
3311rouse_wait (...) 4078rouse_wait (...)
3312 PROTOTYPE: ;$ 4079 PROTOTYPE: ;$
3313 PPCODE: 4080 PPCODE:
3314 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4081 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3315 4082
4083void
4084on_enter (SV *block)
4085 ALIAS:
4086 on_leave = 1
4087 PROTOTYPE: &
4088 CODE:
4089{
4090 struct coro *coro = SvSTATE_current;
4091 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4092
4093 block = s_get_cv_croak (block);
4094
4095 if (!*avp)
4096 *avp = newAV ();
4097
4098 av_push (*avp, SvREFCNT_inc (block));
4099
4100 if (!ix)
4101 on_enterleave_call (aTHX_ block);
4102
4103 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4104 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4105 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4106}
4107
3316 4108
3317MODULE = Coro::State PACKAGE = PerlIO::cede 4109MODULE = Coro::State PACKAGE = PerlIO::cede
3318 4110
3319BOOT: 4111BOOT:
3320 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4112 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3323MODULE = Coro::State PACKAGE = Coro::Semaphore 4115MODULE = Coro::State PACKAGE = Coro::Semaphore
3324 4116
3325SV * 4117SV *
3326new (SV *klass, SV *count = 0) 4118new (SV *klass, SV *count = 0)
3327 CODE: 4119 CODE:
4120{
4121 int semcnt = 1;
4122
4123 if (count)
4124 {
4125 SvGETMAGIC (count);
4126
4127 if (SvOK (count))
4128 semcnt = SvIV (count);
4129 }
4130
3328 RETVAL = sv_bless ( 4131 RETVAL = sv_bless (
3329 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4132 coro_waitarray_new (aTHX_ semcnt),
3330 GvSTASH (CvGV (cv)) 4133 GvSTASH (CvGV (cv))
3331 ); 4134 );
4135}
3332 OUTPUT: 4136 OUTPUT:
3333 RETVAL 4137 RETVAL
3334 4138
3335# helper for Coro::Channel 4139# helper for Coro::Channel and others
3336SV * 4140SV *
3337_alloc (int count) 4141_alloc (int count)
3338 CODE: 4142 CODE:
3339 RETVAL = coro_waitarray_new (aTHX_ count); 4143 RETVAL = coro_waitarray_new (aTHX_ count);
3340 OUTPUT: 4144 OUTPUT:
… …
3382 XSRETURN_NO; 4186 XSRETURN_NO;
3383} 4187}
3384 4188
3385void 4189void
3386waiters (SV *self) 4190waiters (SV *self)
3387 PPCODE: 4191 PPCODE:
3388{ 4192{
3389 AV *av = (AV *)SvRV (self); 4193 AV *av = (AV *)SvRV (self);
3390 int wcount = AvFILLp (av) + 1 - 1; 4194 int wcount = AvFILLp (av) + 1 - 1;
3391 4195
3392 if (GIMME_V == G_SCALAR) 4196 if (GIMME_V == G_SCALAR)
… …
3398 for (i = 1; i <= wcount; ++i) 4202 for (i = 1; i <= wcount; ++i)
3399 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4203 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3400 } 4204 }
3401} 4205}
3402 4206
4207MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4208
4209void
4210_may_delete (SV *sem, int count, unsigned int extra_refs)
4211 PPCODE:
4212{
4213 AV *av = (AV *)SvRV (sem);
4214
4215 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4216 && AvFILLp (av) == 0 /* no waiters, just count */
4217 && SvIV (AvARRAY (av)[0]) == count)
4218 XSRETURN_YES;
4219
4220 XSRETURN_NO;
4221}
4222
3403MODULE = Coro::State PACKAGE = Coro::Signal 4223MODULE = Coro::State PACKAGE = Coro::Signal
3404 4224
3405SV * 4225SV *
3406new (SV *klass) 4226new (SV *klass)
3407 CODE: 4227 CODE:
… …
3419 4239
3420void 4240void
3421broadcast (SV *self) 4241broadcast (SV *self)
3422 CODE: 4242 CODE:
3423{ 4243{
3424 AV *av = (AV *)SvRV (self); 4244 AV *av = (AV *)SvRV (self);
3425 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4245 coro_signal_wake (aTHX_ av, AvFILLp (av));
3426} 4246}
3427 4247
3428void 4248void
3429send (SV *self) 4249send (SV *self)
… …
3437 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4257 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3438} 4258}
3439 4259
3440IV 4260IV
3441awaited (SV *self) 4261awaited (SV *self)
3442 CODE: 4262 CODE:
3443 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4263 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3444 OUTPUT: 4264 OUTPUT:
3445 RETVAL 4265 RETVAL
3446 4266
3447 4267
… …
3452 4272
3453void 4273void
3454_schedule (...) 4274_schedule (...)
3455 CODE: 4275 CODE:
3456{ 4276{
3457 static int incede; 4277 static int incede;
3458 4278
3459 api_cede_notself (aTHX); 4279 api_cede_notself (aTHX);
3460 4280
3461 ++incede; 4281 ++incede;
3462 while (coro_nready >= incede && api_cede (aTHX)) 4282 while (coro_nready >= incede && api_cede (aTHX))
… …
3478 4298
3479void 4299void
3480_register (char *target, char *proto, SV *req) 4300_register (char *target, char *proto, SV *req)
3481 CODE: 4301 CODE:
3482{ 4302{
3483 CV *req_cv = coro_sv_2cv (aTHX_ req); 4303 SV *req_cv = s_get_cv_croak (req);
3484 /* newXSproto doesn't return the CV on 5.8 */ 4304 /* newXSproto doesn't return the CV on 5.8 */
3485 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4305 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3486 sv_setpv ((SV *)slf_cv, proto); 4306 sv_setpv ((SV *)slf_cv, proto);
3487 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4307 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3488} 4308}
3489 4309
4310MODULE = Coro::State PACKAGE = Coro::Select
4311
4312void
4313patch_pp_sselect ()
4314 CODE:
4315 if (!coro_old_pp_sselect)
4316 {
4317 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4318 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4319 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4320 }
4321
4322void
4323unpatch_pp_sselect ()
4324 CODE:
4325 if (coro_old_pp_sselect)
4326 {
4327 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4328 coro_old_pp_sselect = 0;
4329 }
4330

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