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Comparing Coro/Coro/State.xs (file contents):
Revision 1.360 by root, Mon Jun 29 06:14:23 2009 UTC vs.
Revision 1.454 by root, Tue Jul 7 00:38:03 2015 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 /* perl usually disables NDEBUG later */
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#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
13#include <stdio.h> 23#include <stdio.h>
14#include <errno.h> 24#include <errno.h>
15#include <assert.h> 25#include <assert.h>
16 26
17#ifdef WIN32 27#ifndef SvREFCNT_dec_NN
28 #define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
29#endif
30
31#ifndef SvREFCNT_inc_NN
32 #define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
33#endif
34
35#ifndef SVs_PADSTALE
36# define SVs_PADSTALE 0
37#endif
38
39#ifdef PadARRAY
40# define NEWPADAPI 1
41# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
42#else
43typedef AV PADNAMELIST;
44# if !PERL_VERSION_ATLEAST(5,8,0)
45typedef AV PADLIST;
46typedef AV PAD;
47# endif
48# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
49# define PadlistMAX(pl) AvFILLp (pl)
50# define PadlistNAMES(pl) (*PadlistARRAY (pl))
51# define PadARRAY AvARRAY
52# define PadMAX AvFILLp
53# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
54#endif
55#ifndef PadnamelistREFCNT
56# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
57#endif
58#ifndef PadnamelistREFCNT_dec
59# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
60#endif
61
62/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
63/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
64#if PERL_VERSION_ATLEAST(5,19,0)
65# define SVt_BIND SVt_IV
66#endif
67
68#if defined(_WIN32)
69# undef HAS_GETTIMEOFDAY
18# undef setjmp 70# undef setjmp
19# undef longjmp 71# undef longjmp
20# undef _exit 72# undef _exit
21# define setjmp _setjmp /* deep magic */ 73# define setjmp _setjmp /* deep magic */
22#else 74#else
23# include <inttypes.h> /* most portable stdint.h */ 75# include <inttypes.h> /* most portable stdint.h */
24#endif 76#endif
25 77
26#ifdef HAVE_MMAP
27# include <unistd.h>
28# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON
32# else
33# undef HAVE_MMAP
34# endif
35# endif
36# include <limits.h>
37# ifndef PAGESIZE
38# define PAGESIZE pagesize
39# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
40static long pagesize;
41# else
42# define BOOT_PAGESIZE (void)0
43# endif
44#else
45# define PAGESIZE 0
46# define BOOT_PAGESIZE (void)0
47#endif
48
49#if CORO_USE_VALGRIND
50# include <valgrind/valgrind.h>
51#endif
52
53/* the maximum number of idle cctx that will be pooled */ 78/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 79static int cctx_max_idle = 4;
55 80
56#define PERL_VERSION_ATLEAST(a,b,c) \ 81#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 82# 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
114
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD
117#endif
118
119#ifndef CORO_STACKGUARD
120# define CORO_STACKGUARD 0
121#endif 83#endif
122 84
123/* prefer perl internal functions over our own? */ 85/* prefer perl internal functions over our own? */
124#ifndef CORO_PREFER_PERL_FUNCTIONS 86#ifndef CORO_PREFER_PERL_FUNCTIONS
125# define CORO_PREFER_PERL_FUNCTIONS 0 87# define CORO_PREFER_PERL_FUNCTIONS 0
… …
135# define STACKLEVEL ((void *)&stacklevel) 97# define STACKLEVEL ((void *)&stacklevel)
136#endif 98#endif
137 99
138#define IN_DESTRUCT PL_dirty 100#define IN_DESTRUCT PL_dirty
139 101
140#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr), (value))
143# define INLINE static inline
144#else
145# define attribute(x)
146# define expect(expr,value) (expr)
147# define INLINE static
148#endif
149
150#define expect_false(expr) expect ((expr) != 0, 0)
151#define expect_true(expr) expect ((expr) != 0, 1)
152
153#define NOINLINE attribute ((noinline))
154
155#include "CoroAPI.h" 102#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */ 103#define GCoroAPI (&coroapi) /* very sneaky */
157 104
158#ifdef USE_ITHREADS 105#ifdef USE_ITHREADS
159# if CORO_PTHREAD 106# if CORO_PTHREAD
… …
175static void (*u2time)(pTHX_ UV ret[2]); 122static void (*u2time)(pTHX_ UV ret[2]);
176 123
177/* we hijack an hopefully unused CV flag for our purposes */ 124/* we hijack an hopefully unused CV flag for our purposes */
178#define CVf_SLF 0x4000 125#define CVf_SLF 0x4000
179static OP *pp_slf (pTHX); 126static OP *pp_slf (pTHX);
127static void slf_destroy (pTHX_ struct coro *coro);
180 128
181static U32 cctx_gen; 129static U32 cctx_gen;
182static size_t cctx_stacksize = CORO_STACKSIZE; 130static size_t cctx_stacksize = CORO_STACKSIZE;
183static struct CoroAPI coroapi; 131static struct CoroAPI coroapi;
184static AV *main_mainstack; /* used to differentiate between $main and others */ 132static AV *main_mainstack; /* used to differentiate between $main and others */
… …
201static SV *sv_pool_size; 149static SV *sv_pool_size;
202static SV *sv_async_pool_idle; /* description string */ 150static SV *sv_async_pool_idle; /* description string */
203static AV *av_async_pool; /* idle pool */ 151static AV *av_async_pool; /* idle pool */
204static SV *sv_Coro; /* class string */ 152static SV *sv_Coro; /* class string */
205static CV *cv_pool_handler; 153static CV *cv_pool_handler;
206static CV *cv_coro_state_new;
207 154
208/* Coro::AnyEvent */ 155/* Coro::AnyEvent */
209static SV *sv_activity; 156static SV *sv_activity;
210 157
211/* enable processtime/realtime profiling */ 158/* enable processtime/realtime profiling */
… …
215static char times_valid; 162static char times_valid;
216 163
217static struct coro_cctx *cctx_first; 164static struct coro_cctx *cctx_first;
218static int cctx_count, cctx_idle; 165static int cctx_count, cctx_idle;
219 166
220enum { 167enum
168{
221 CC_MAPPED = 0x01, 169 CC_MAPPED = 0x01,
222 CC_NOREUSE = 0x02, /* throw this away after tracing */ 170 CC_NOREUSE = 0x02, /* throw this away after tracing */
223 CC_TRACE = 0x04, 171 CC_TRACE = 0x04,
224 CC_TRACE_SUB = 0x08, /* trace sub calls */ 172 CC_TRACE_SUB = 0x08, /* trace sub calls */
225 CC_TRACE_LINE = 0x10, /* trace each statement */ 173 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
230typedef struct coro_cctx 178typedef struct coro_cctx
231{ 179{
232 struct coro_cctx *next; 180 struct coro_cctx *next;
233 181
234 /* the stack */ 182 /* the stack */
235 void *sptr; 183 struct coro_stack stack;
236 size_t ssize;
237 184
238 /* cpu state */ 185 /* cpu state */
239 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 186 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
187#ifndef NDEBUG
240 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 188 JMPENV *idle_te; /* same as idle_sp, but for top_env */
189#endif
241 JMPENV *top_env; 190 JMPENV *top_env;
242 coro_context cctx; 191 coro_context cctx;
243 192
244 U32 gen; 193 U32 gen;
245#if CORO_USE_VALGRIND 194#if CORO_USE_VALGRIND
246 int valgrind_id; 195 int valgrind_id;
247#endif 196#endif
248 unsigned char flags; 197 unsigned char flags;
249} coro_cctx; 198} coro_cctx;
250 199
251coro_cctx *cctx_current; /* the currently running cctx */ 200static coro_cctx *cctx_current; /* the currently running cctx */
252 201
253/*****************************************************************************/ 202/*****************************************************************************/
254 203
204static MGVTBL coro_state_vtbl;
205
255enum { 206enum
207{
256 CF_RUNNING = 0x0001, /* coroutine is running */ 208 CF_RUNNING = 0x0001, /* coroutine is running */
257 CF_READY = 0x0002, /* coroutine is ready */ 209 CF_READY = 0x0002, /* coroutine is ready */
258 CF_NEW = 0x0004, /* has never been switched to */ 210 CF_NEW = 0x0004, /* has never been switched to */
259 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 211 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
260 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 212 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
213 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
261}; 214};
262 215
263/* the structure where most of the perl state is stored, overlaid on the cxstack */ 216/* the structure where most of the perl state is stored, overlaid on the cxstack */
264typedef struct 217typedef struct
265{ 218{
266 SV *defsv;
267 AV *defav;
268 SV *errsv;
269 SV *irsgv;
270 HV *hinthv;
271#define VAR(name,type) type name; 219 #define VARx(name,expr,type) type name;
272# include "state.h" 220 #include "state.h"
273#undef VAR
274} perl_slots; 221} perl_slots;
275 222
223/* how many context stack entries do we need for perl_slots */
276#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 224#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
277 225
278/* this is a structure representing a perl-level coroutine */ 226/* this is a structure representing a perl-level coroutine */
279struct coro { 227struct coro
228{
280 /* the C coroutine allocated to this perl coroutine, if any */ 229 /* the C coroutine allocated to this perl coroutine, if any */
281 coro_cctx *cctx; 230 coro_cctx *cctx;
282 231
283 /* ready queue */ 232 /* ready queue */
284 struct coro *next_ready; 233 struct coro *next_ready;
… …
286 /* state data */ 235 /* state data */
287 struct CoroSLF slf_frame; /* saved slf frame */ 236 struct CoroSLF slf_frame; /* saved slf frame */
288 AV *mainstack; 237 AV *mainstack;
289 perl_slots *slot; /* basically the saved sp */ 238 perl_slots *slot; /* basically the saved sp */
290 239
291 CV *startcv; /* the CV to execute */ 240 CV *startcv; /* the CV to execute */
292 AV *args; /* data associated with this coroutine (initial args) */ 241 AV *args; /* data associated with this coroutine (initial args) */
293 int refcnt; /* coroutines are refcounted, yes */
294 int flags; /* CF_ flags */ 242 int flags; /* CF_ flags */
295 HV *hv; /* the perl hash associated with this coro, if any */ 243 HV *hv; /* the perl hash associated with this coro, if any */
296 void (*on_destroy)(pTHX_ struct coro *coro);
297 244
298 /* statistics */ 245 /* statistics */
299 int usecount; /* number of transfers to this coro */ 246 int usecount; /* number of transfers to this coro */
300 247
301 /* coro process data */ 248 /* coro process data */
302 int prio; 249 int prio;
303 SV *except; /* exception to be thrown */ 250 SV *except; /* exception to be thrown */
304 SV *rouse_cb; 251 SV *rouse_cb; /* last rouse callback */
252 AV *on_destroy; /* callbacks or coros to notify on destroy */
253 AV *status; /* the exit status list */
305 254
306 /* async_pool */ 255 /* async_pool */
307 SV *saved_deffh; 256 SV *saved_deffh;
308 SV *invoke_cb; 257 SV *invoke_cb;
309 AV *invoke_av; 258 AV *invoke_av;
310 259
311 /* on_enter/on_leave */ 260 /* on_enter/on_leave */
312 AV *on_enter; 261 AV *on_enter; AV *on_enter_xs;
313 AV *on_leave; 262 AV *on_leave; AV *on_leave_xs;
263
264 /* swap_sv */
265 AV *swap_sv;
314 266
315 /* times */ 267 /* times */
316 coro_ts t_cpu, t_real; 268 coro_ts t_cpu, t_real;
317 269
318 /* linked list */ 270 /* linked list */
… …
322typedef struct coro *Coro__State; 274typedef struct coro *Coro__State;
323typedef struct coro *Coro__State_or_hashref; 275typedef struct coro *Coro__State_or_hashref;
324 276
325/* the following variables are effectively part of the perl context */ 277/* the following variables are effectively part of the perl context */
326/* and get copied between struct coro and these variables */ 278/* and get copied between struct coro and these variables */
327/* the mainr easonw e don't support windows process emulation */ 279/* the main reason we don't support windows process emulation */
328static struct CoroSLF slf_frame; /* the current slf frame */ 280static struct CoroSLF slf_frame; /* the current slf frame */
329 281
330/** Coro ********************************************************************/ 282/** Coro ********************************************************************/
331 283
332#define CORO_PRIO_MAX 3 284#define CORO_PRIO_MAX 3
… …
338 290
339/* for Coro.pm */ 291/* for Coro.pm */
340static SV *coro_current; 292static SV *coro_current;
341static SV *coro_readyhook; 293static SV *coro_readyhook;
342static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 294static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
343static CV *cv_coro_run, *cv_coro_terminate; 295static CV *cv_coro_run;
344static struct coro *coro_first; 296static struct coro *coro_first;
345#define coro_nready coroapi.nready 297#define coro_nready coroapi.nready
346 298
299/** JIT *********************************************************************/
300
301#if CORO_JIT
302 /* APPLE doesn't have mmap though */
303 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
304 #ifndef CORO_JIT_TYPE
305 #if ECB_AMD64 && CORO_JIT_UNIXY
306 #define CORO_JIT_TYPE "amd64-unix"
307 #elif __i386 && CORO_JIT_UNIXY
308 #define CORO_JIT_TYPE "x86-unix"
309 #endif
310 #endif
311#endif
312
313#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
314 #undef CORO_JIT
315#endif
316
317#if CORO_JIT
318 typedef void (*load_save_perl_slots_type)(perl_slots *);
319 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
320#endif
321
322/** Coro::Select ************************************************************/
323
324static OP *(*coro_old_pp_sselect) (pTHX);
325static SV *coro_select_select;
326
327/* horrible hack, but if it works... */
328static OP *
329coro_pp_sselect (pTHX)
330{
331 dSP;
332 PUSHMARK (SP - 4); /* fake argument list */
333 XPUSHs (coro_select_select);
334 PUTBACK;
335
336 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
337 PL_op->op_flags |= OPf_STACKED;
338 PL_op->op_private = 0;
339 return PL_ppaddr [OP_ENTERSUB](aTHX);
340}
341
342/** time stuff **************************************************************/
343
344#ifdef HAS_GETTIMEOFDAY
345
346ecb_inline void
347coro_u2time (pTHX_ UV ret[2])
348{
349 struct timeval tv;
350 gettimeofday (&tv, 0);
351
352 ret [0] = tv.tv_sec;
353 ret [1] = tv.tv_usec;
354}
355
356ecb_inline double
357coro_nvtime (void)
358{
359 struct timeval tv;
360 gettimeofday (&tv, 0);
361
362 return tv.tv_sec + tv.tv_usec * 1e-6;
363}
364
365ecb_inline void
366time_init (pTHX)
367{
368 nvtime = coro_nvtime;
369 u2time = coro_u2time;
370}
371
372#else
373
374ecb_inline void
375time_init (pTHX)
376{
377 SV **svp;
378
379 require_pv ("Time/HiRes.pm");
380
381 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
382
383 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
384 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
385
386 nvtime = INT2PTR (double (*)(), SvIV (*svp));
387
388 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
389 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
390}
391
392#endif
393
347/** lowlevel stuff **********************************************************/ 394/** lowlevel stuff **********************************************************/
348 395
349static SV * 396static SV * ecb_noinline
350coro_get_sv (pTHX_ const char *name, int create) 397coro_get_sv (pTHX_ const char *name, int create)
351{ 398{
352#if PERL_VERSION_ATLEAST (5,10,0) 399#if PERL_VERSION_ATLEAST (5,10,0)
353 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 400 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
354 get_sv (name, create); 401 get_sv (name, create);
355#endif 402#endif
356 return get_sv (name, create); 403 return get_sv (name, create);
357} 404}
358 405
359static AV * 406static AV * ecb_noinline
360coro_get_av (pTHX_ const char *name, int create) 407coro_get_av (pTHX_ const char *name, int create)
361{ 408{
362#if PERL_VERSION_ATLEAST (5,10,0) 409#if PERL_VERSION_ATLEAST (5,10,0)
363 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 410 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
364 get_av (name, create); 411 get_av (name, create);
365#endif 412#endif
366 return get_av (name, create); 413 return get_av (name, create);
367} 414}
368 415
369static HV * 416static HV * ecb_noinline
370coro_get_hv (pTHX_ const char *name, int create) 417coro_get_hv (pTHX_ const char *name, int create)
371{ 418{
372#if PERL_VERSION_ATLEAST (5,10,0) 419#if PERL_VERSION_ATLEAST (5,10,0)
373 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 420 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
374 get_hv (name, create); 421 get_hv (name, create);
375#endif 422#endif
376 return get_hv (name, create); 423 return get_hv (name, create);
377} 424}
378 425
379/* may croak */ 426ecb_inline void
380INLINE CV *
381coro_sv_2cv (pTHX_ SV *sv)
382{
383 HV *st;
384 GV *gvp;
385 CV *cv = sv_2cv (sv, &st, &gvp, 0);
386
387 if (!cv)
388 croak ("code reference expected");
389
390 return cv;
391}
392
393INLINE void
394coro_times_update () 427coro_times_update (void)
395{ 428{
396#ifdef coro_clock_gettime 429#ifdef coro_clock_gettime
397 struct timespec ts; 430 struct timespec ts;
398 431
399 ts.tv_sec = ts.tv_nsec = 0; 432 ts.tv_sec = ts.tv_nsec = 0;
… …
402 435
403 ts.tv_sec = ts.tv_nsec = 0; 436 ts.tv_sec = ts.tv_nsec = 0;
404 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); 437 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
405 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; 438 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
406#else 439#else
440 dTHX;
407 UV tv[2]; 441 UV tv[2];
408 442
409 u2time (aTHX_ &tv); 443 u2time (aTHX_ tv);
410 time_real [0] = tv [0]; 444 time_real [0] = tv [0];
411 time_real [1] = tv [1] * 1000; 445 time_real [1] = tv [1] * 1000;
412#endif 446#endif
413} 447}
414 448
415INLINE void 449ecb_inline void
416coro_times_add (struct coro *c) 450coro_times_add (struct coro *c)
417{ 451{
418 c->t_real [1] += time_real [1]; 452 c->t_real [1] += time_real [1];
419 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 453 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
420 c->t_real [0] += time_real [0]; 454 c->t_real [0] += time_real [0];
… …
422 c->t_cpu [1] += time_cpu [1]; 456 c->t_cpu [1] += time_cpu [1];
423 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 457 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
424 c->t_cpu [0] += time_cpu [0]; 458 c->t_cpu [0] += time_cpu [0];
425} 459}
426 460
427INLINE void 461ecb_inline void
428coro_times_sub (struct coro *c) 462coro_times_sub (struct coro *c)
429{ 463{
430 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 464 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
431 c->t_real [1] -= time_real [1]; 465 c->t_real [1] -= time_real [1];
432 c->t_real [0] -= time_real [0]; 466 c->t_real [0] -= time_real [0];
… …
440/* magic glue */ 474/* magic glue */
441 475
442#define CORO_MAGIC_type_cv 26 476#define CORO_MAGIC_type_cv 26
443#define CORO_MAGIC_type_state PERL_MAGIC_ext 477#define CORO_MAGIC_type_state PERL_MAGIC_ext
444 478
445#define CORO_MAGIC_NN(sv, type) \ 479#define CORO_MAGIC_NN(sv, type) \
446 (expect_true (SvMAGIC (sv)->mg_type == type) \ 480 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
447 ? SvMAGIC (sv) \ 481 ? SvMAGIC (sv) \
448 : mg_find (sv, type)) 482 : mg_find (sv, type))
449 483
450#define CORO_MAGIC(sv, type) \ 484#define CORO_MAGIC(sv, type) \
451 (expect_true (SvMAGIC (sv)) \ 485 (ecb_expect_true (SvMAGIC (sv)) \
452 ? CORO_MAGIC_NN (sv, type) \ 486 ? CORO_MAGIC_NN (sv, type) \
453 : 0) 487 : 0)
454 488
455#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 489#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
456#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 490#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
457 491
458INLINE struct coro * 492ecb_inline MAGIC *
459SvSTATE_ (pTHX_ SV *coro) 493SvSTATEhv_p (pTHX_ SV *coro)
460{ 494{
461 HV *stash;
462 MAGIC *mg; 495 MAGIC *mg;
463 496
497 if (ecb_expect_true (
498 SvTYPE (coro) == SVt_PVHV
499 && (mg = CORO_MAGIC_state (coro))
500 && mg->mg_virtual == &coro_state_vtbl
501 ))
502 return mg;
503
504 return 0;
505}
506
507ecb_inline struct coro *
508SvSTATE_ (pTHX_ SV *coro_sv)
509{
510 MAGIC *mg;
511
464 if (SvROK (coro)) 512 if (SvROK (coro_sv))
465 coro = SvRV (coro); 513 coro_sv = SvRV (coro_sv);
466 514
467 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 515 mg = SvSTATEhv_p (aTHX_ coro_sv);
516 if (!mg)
468 croak ("Coro::State object required"); 517 croak ("Coro::State object required");
469 518
470 stash = SvSTASH (coro);
471 if (expect_false (stash != coro_stash && stash != coro_state_stash))
472 {
473 /* very slow, but rare, check */
474 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
475 croak ("Coro::State object required");
476 }
477
478 mg = CORO_MAGIC_state (coro);
479 return (struct coro *)mg->mg_ptr; 519 return (struct coro *)mg->mg_ptr;
480} 520}
481 521
482#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 522#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
483 523
… …
486#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 526#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
487 527
488/*****************************************************************************/ 528/*****************************************************************************/
489/* padlist management and caching */ 529/* padlist management and caching */
490 530
491static AV * 531ecb_inline PADLIST *
492coro_derive_padlist (pTHX_ CV *cv) 532coro_derive_padlist (pTHX_ CV *cv)
493{ 533{
494 AV *padlist = CvPADLIST (cv); 534 PADLIST *padlist = CvPADLIST (cv);
495 AV *newpadlist, *newpad; 535 PADLIST *newpadlist;
536 PADNAMELIST *padnames;
537 PAD *newpad;
538 PADOFFSET off = PadlistMAX (padlist) + 1;
496 539
497 newpadlist = newAV (); 540#if NEWPADAPI
541
542 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
543 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
544 while (!PadlistARRAY (padlist)[off - 1])
545 --off;
546
547 Perl_pad_push (aTHX_ padlist, off);
548
549 newpad = PadlistARRAY (padlist)[off];
550 PadlistARRAY (padlist)[off] = 0;
551
552#else
553
554#if PERL_VERSION_ATLEAST (5,10,0)
555 Perl_pad_push (aTHX_ padlist, off);
556#else
557 Perl_pad_push (aTHX_ padlist, off, 1);
558#endif
559
560 newpad = PadlistARRAY (padlist)[off];
561 PadlistMAX (padlist) = off - 1;
562
563#endif
564
565 newPADLIST (newpadlist);
566#if !PERL_VERSION_ATLEAST(5,15,3)
567 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
498 AvREAL_off (newpadlist); 568 AvREAL_off (newpadlist);
499#if PERL_VERSION_ATLEAST (5,10,0)
500 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
501#else
502 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
503#endif 569#endif
504 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
505 --AvFILLp (padlist);
506 570
507 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 571 /* Already extended to 2 elements by newPADLIST. */
508 av_store (newpadlist, 1, (SV *)newpad); 572 PadlistMAX (newpadlist) = 1;
573
574 padnames = PadlistNAMES (padlist);
575 ++PadnamelistREFCNT (padnames);
576 PadlistNAMES (newpadlist) = padnames;
577
578 PadlistARRAY (newpadlist)[1] = newpad;
509 579
510 return newpadlist; 580 return newpadlist;
511} 581}
512 582
513static void 583ecb_inline void
514free_padlist (pTHX_ AV *padlist) 584free_padlist (pTHX_ PADLIST *padlist)
515{ 585{
516 /* may be during global destruction */ 586 /* may be during global destruction */
517 if (!IN_DESTRUCT) 587 if (!IN_DESTRUCT)
518 { 588 {
519 I32 i = AvFILLp (padlist); 589 I32 i = PadlistMAX (padlist);
520 590
521 while (i > 0) /* special-case index 0 */ 591 while (i > 0) /* special-case index 0 */
522 { 592 {
523 /* we try to be extra-careful here */ 593 /* we try to be extra-careful here */
524 AV *av = (AV *)AvARRAY (padlist)[i--]; 594 PAD *pad = PadlistARRAY (padlist)[i--];
525 I32 j = AvFILLp (av);
526 595
596 if (pad)
597 {
598 I32 j = PadMAX (pad);
599
527 while (j >= 0) 600 while (j >= 0)
528 SvREFCNT_dec (AvARRAY (av)[j--]); 601 SvREFCNT_dec (PadARRAY (pad)[j--]);
529 602
530 AvFILLp (av) = -1; 603 PadMAX (pad) = -1;
531 SvREFCNT_dec (av); 604 SvREFCNT_dec (pad);
605 }
532 } 606 }
533 607
534 SvREFCNT_dec (AvARRAY (padlist)[0]); 608 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
535 609
610#if NEWPADAPI
611 Safefree (PadlistARRAY (padlist));
612 Safefree (padlist);
613#else
536 AvFILLp (padlist) = -1; 614 AvFILLp (padlist) = -1;
615 AvREAL_off (padlist);
537 SvREFCNT_dec ((SV*)padlist); 616 SvREFCNT_dec ((SV*)padlist);
617#endif
538 } 618 }
539} 619}
540 620
541static int 621static int
542coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 622coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
543{ 623{
544 AV *padlist; 624 PADLIST *padlist;
545 AV *av = (AV *)mg->mg_obj; 625 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
626 size_t len = *(size_t *)mg->mg_ptr;
546 627
547 /* perl manages to free our internal AV and _then_ call us */ 628 /* perl manages to free our internal AV and _then_ call us */
548 if (IN_DESTRUCT) 629 if (IN_DESTRUCT)
549 return; 630 return 0;
550 631
551 /* casting is fun. */ 632 while (len--)
552 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
553 free_padlist (aTHX_ padlist); 633 free_padlist (aTHX_ padlists[len]);
554
555 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
556 634
557 return 0; 635 return 0;
558} 636}
559 637
560static MGVTBL coro_cv_vtbl = { 638static MGVTBL coro_cv_vtbl = {
561 0, 0, 0, 0, 639 0, 0, 0, 0,
562 coro_cv_free 640 coro_cv_free
563}; 641};
564 642
565/* the next two functions merely cache the padlists */ 643/* the next two functions merely cache the padlists */
566static void 644ecb_inline void
567get_padlist (pTHX_ CV *cv) 645get_padlist (pTHX_ CV *cv)
568{ 646{
569 MAGIC *mg = CORO_MAGIC_cv (cv); 647 MAGIC *mg = CORO_MAGIC_cv (cv);
570 AV *av; 648 size_t *lenp;
571 649
572 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 650 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
573 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 651 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
574 else 652 else
575 { 653 {
576#if CORO_PREFER_PERL_FUNCTIONS 654#if CORO_PREFER_PERL_FUNCTIONS
577 /* this is probably cleaner? but also slower! */ 655 /* this is probably cleaner? but also slower! */
578 /* in practise, it seems to be less stable */ 656 /* in practise, it seems to be less stable */
… …
584 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 662 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
585#endif 663#endif
586 } 664 }
587} 665}
588 666
589static void 667ecb_inline void
590put_padlist (pTHX_ CV *cv) 668put_padlist (pTHX_ CV *cv)
591{ 669{
592 MAGIC *mg = CORO_MAGIC_cv (cv); 670 MAGIC *mg = CORO_MAGIC_cv (cv);
593 AV *av;
594 671
595 if (expect_false (!mg)) 672 if (ecb_expect_false (!mg))
673 {
596 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 674 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
675 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
676 mg->mg_len = 1; /* so mg_free frees mg_ptr */
677 }
678 else
679 Renew (mg->mg_ptr,
680 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
681 char);
597 682
598 av = (AV *)mg->mg_obj; 683 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
599
600 if (expect_false (AvFILLp (av) >= AvMAX (av)))
601 av_extend (av, AvFILLp (av) + 1);
602
603 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
604} 684}
605 685
606/** load & save, init *******************************************************/ 686/** load & save, init *******************************************************/
687
688ecb_inline void
689swap_sv (SV *a, SV *b)
690{
691 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
692 SV tmp;
693
694 /* swap sv_any */
695 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
696
697 /* swap sv_flags */
698 SvFLAGS (&tmp) = SvFLAGS (a);
699 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
700 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
701
702#if PERL_VERSION_ATLEAST (5,10,0)
703 /* perl 5.10 and later complicates this _quite_ a bit, but it also
704 * is much faster, so no quarrels here. alternatively, we could
705 * sv_upgrade to avoid this.
706 */
707 {
708 /* swap sv_u */
709 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
710
711 /* if SvANY points to the head, we need to adjust the pointers,
712 * as the pointer for a still points to b, and maybe vice versa.
713 */
714 U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
715 #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
716 svany_in_head_set |= 1 << SVt_NV;
717 #endif
718
719 #define svany_in_head(type) (svany_in_head_set & (1 << (type)))
720
721 if (svany_in_head (SvTYPE (a)))
722 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
723
724 if (svany_in_head (SvTYPE (b)))
725 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
726 }
727#endif
728}
729
730/* swap sv heads, at least logically */
731static void
732swap_svs (pTHX_ Coro__State c)
733{
734 int i;
735
736 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
737 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
738}
739
740#define SWAP_SVS(coro) \
741 if (ecb_expect_false ((coro)->swap_sv)) \
742 swap_svs (aTHX_ (coro))
607 743
608static void 744static void
609on_enterleave_call (pTHX_ SV *cb); 745on_enterleave_call (pTHX_ SV *cb);
610 746
611static void 747static void
… …
614 perl_slots *slot = c->slot; 750 perl_slots *slot = c->slot;
615 c->slot = 0; 751 c->slot = 0;
616 752
617 PL_mainstack = c->mainstack; 753 PL_mainstack = c->mainstack;
618 754
619 GvSV (PL_defgv) = slot->defsv; 755#if CORO_JIT
620 GvAV (PL_defgv) = slot->defav; 756 load_perl_slots (slot);
621 GvSV (PL_errgv) = slot->errsv; 757#else
622 GvSV (irsgv) = slot->irsgv;
623 GvHV (PL_hintgv) = slot->hinthv;
624
625 #define VAR(name,type) PL_ ## name = slot->name; 758 #define VARx(name,expr,type) expr = slot->name;
626 # include "state.h" 759 #include "state.h"
627 #undef VAR 760#endif
628 761
629 { 762 {
630 dSP; 763 dSP;
631 764
632 CV *cv; 765 CV *cv;
633 766
634 /* now do the ugly restore mess */ 767 /* now do the ugly restore mess */
635 while (expect_true (cv = (CV *)POPs)) 768 while (ecb_expect_true (cv = (CV *)POPs))
636 { 769 {
637 put_padlist (aTHX_ cv); /* mark this padlist as available */ 770 put_padlist (aTHX_ cv); /* mark this padlist as available */
638 CvDEPTH (cv) = PTR2IV (POPs); 771 CvDEPTH (cv) = PTR2IV (POPs);
639 CvPADLIST (cv) = (AV *)POPs; 772 CvPADLIST (cv) = (PADLIST *)POPs;
640 } 773 }
641 774
642 PUTBACK; 775 PUTBACK;
643 } 776 }
644 777
645 slf_frame = c->slf_frame; 778 slf_frame = c->slf_frame;
646 CORO_THROW = c->except; 779 CORO_THROW = c->except;
647 780
648 if (expect_false (enable_times)) 781 if (ecb_expect_false (enable_times))
649 { 782 {
650 if (expect_false (!times_valid)) 783 if (ecb_expect_false (!times_valid))
651 coro_times_update (); 784 coro_times_update ();
652 785
653 coro_times_sub (c); 786 coro_times_sub (c);
654 } 787 }
655 788
656 if (expect_false (c->on_enter)) 789 if (ecb_expect_false (c->on_enter))
657 { 790 {
658 int i; 791 int i;
659 792
660 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 793 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
661 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 794 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
662 } 795 }
796
797 if (ecb_expect_false (c->on_enter_xs))
798 {
799 int i;
800
801 for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
802 ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
803 }
804
805 SWAP_SVS (c);
663} 806}
664 807
665static void 808static void
666save_perl (pTHX_ Coro__State c) 809save_perl (pTHX_ Coro__State c)
667{ 810{
811 SWAP_SVS (c);
812
813 if (ecb_expect_false (c->on_leave_xs))
814 {
815 int i;
816
817 for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
818 ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
819 }
820
668 if (expect_false (c->on_leave)) 821 if (ecb_expect_false (c->on_leave))
669 { 822 {
670 int i; 823 int i;
671 824
672 for (i = AvFILLp (c->on_leave); i >= 0; --i) 825 for (i = AvFILLp (c->on_leave); i >= 0; --i)
673 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 826 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
674 } 827 }
675 828
676 times_valid = 0; 829 times_valid = 0;
677 830
678 if (expect_false (enable_times)) 831 if (ecb_expect_false (enable_times))
679 { 832 {
680 coro_times_update (); times_valid = 1; 833 coro_times_update (); times_valid = 1;
681 coro_times_add (c); 834 coro_times_add (c);
682 } 835 }
683 836
… …
697 850
698 XPUSHs (Nullsv); 851 XPUSHs (Nullsv);
699 /* this loop was inspired by pp_caller */ 852 /* this loop was inspired by pp_caller */
700 for (;;) 853 for (;;)
701 { 854 {
702 while (expect_true (cxix >= 0)) 855 while (ecb_expect_true (cxix >= 0))
703 { 856 {
704 PERL_CONTEXT *cx = &ccstk[cxix--]; 857 PERL_CONTEXT *cx = &ccstk[cxix--];
705 858
706 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 859 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
707 { 860 {
708 CV *cv = cx->blk_sub.cv; 861 CV *cv = cx->blk_sub.cv;
709 862
710 if (expect_true (CvDEPTH (cv))) 863 if (ecb_expect_true (CvDEPTH (cv)))
711 { 864 {
712 EXTEND (SP, 3); 865 EXTEND (SP, 3);
713 PUSHs ((SV *)CvPADLIST (cv)); 866 PUSHs ((SV *)CvPADLIST (cv));
714 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 867 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
715 PUSHs ((SV *)cv); 868 PUSHs ((SV *)cv);
… …
718 get_padlist (aTHX_ cv); 871 get_padlist (aTHX_ cv);
719 } 872 }
720 } 873 }
721 } 874 }
722 875
723 if (expect_true (top_si->si_type == PERLSI_MAIN)) 876 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
724 break; 877 break;
725 878
726 top_si = top_si->si_prev; 879 top_si = top_si->si_prev;
727 ccstk = top_si->si_cxstack; 880 ccstk = top_si->si_cxstack;
728 cxix = top_si->si_cxix; 881 cxix = top_si->si_cxix;
… …
730 883
731 PUTBACK; 884 PUTBACK;
732 } 885 }
733 886
734 /* allocate some space on the context stack for our purposes */ 887 /* allocate some space on the context stack for our purposes */
735 /* we manually unroll here, as usually 2 slots is enough */ 888 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
736 if (SLOT_COUNT >= 1) CXINC;
737 if (SLOT_COUNT >= 2) CXINC;
738 if (SLOT_COUNT >= 3) CXINC;
739 { 889 {
740 int i; 890 unsigned int i;
891
741 for (i = 3; i < SLOT_COUNT; ++i) 892 for (i = 0; i < SLOT_COUNT; ++i)
742 CXINC; 893 CXINC;
743 } 894
744 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 895 cxstack_ix -= SLOT_COUNT; /* undo allocation */
896 }
745 897
746 c->mainstack = PL_mainstack; 898 c->mainstack = PL_mainstack;
747 899
748 { 900 {
749 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 901 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
750 902
751 slot->defav = GvAV (PL_defgv); 903#if CORO_JIT
752 slot->defsv = DEFSV; 904 save_perl_slots (slot);
753 slot->errsv = ERRSV; 905#else
754 slot->irsgv = GvSV (irsgv);
755 slot->hinthv = GvHV (PL_hintgv);
756
757 #define VAR(name,type) slot->name = PL_ ## name; 906 #define VARx(name,expr,type) slot->name = expr;
758 # include "state.h" 907 #include "state.h"
759 #undef VAR 908#endif
760 } 909 }
761} 910}
762 911
763/* 912/*
764 * allocate various perl stacks. This is almost an exact copy 913 * allocate various perl stacks. This is almost an exact copy
… …
770# define coro_init_stacks(thx) init_stacks () 919# define coro_init_stacks(thx) init_stacks ()
771#else 920#else
772static void 921static void
773coro_init_stacks (pTHX) 922coro_init_stacks (pTHX)
774{ 923{
775 PL_curstackinfo = new_stackinfo(32, 8); 924 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
776 PL_curstackinfo->si_type = PERLSI_MAIN; 925 PL_curstackinfo->si_type = PERLSI_MAIN;
777 PL_curstack = PL_curstackinfo->si_stack; 926 PL_curstack = PL_curstackinfo->si_stack;
778 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 927 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
779 928
780 PL_stack_base = AvARRAY(PL_curstack); 929 PL_stack_base = AvARRAY(PL_curstack);
… …
795#endif 944#endif
796 945
797 New(54,PL_scopestack,8,I32); 946 New(54,PL_scopestack,8,I32);
798 PL_scopestack_ix = 0; 947 PL_scopestack_ix = 0;
799 PL_scopestack_max = 8; 948 PL_scopestack_max = 8;
949#if HAS_SCOPESTACK_NAME
950 New(54,PL_scopestack_name,8,const char*);
951#endif
800 952
801 New(54,PL_savestack,24,ANY); 953 New(54,PL_savestack,24,ANY);
802 PL_savestack_ix = 0; 954 PL_savestack_ix = 0;
803 PL_savestack_max = 24; 955 PL_savestack_max = 24;
804 956
… …
832 } 984 }
833 985
834 Safefree (PL_tmps_stack); 986 Safefree (PL_tmps_stack);
835 Safefree (PL_markstack); 987 Safefree (PL_markstack);
836 Safefree (PL_scopestack); 988 Safefree (PL_scopestack);
989#if HAS_SCOPESTACK_NAME
990 Safefree (PL_scopestack_name);
991#endif
837 Safefree (PL_savestack); 992 Safefree (PL_savestack);
838#if !PERL_VERSION_ATLEAST (5,10,0) 993#if !PERL_VERSION_ATLEAST (5,10,0)
839 Safefree (PL_retstack); 994 Safefree (PL_retstack);
840#endif 995#endif
841} 996}
… …
887#endif 1042#endif
888 1043
889/* 1044/*
890 * This overrides the default magic get method of %SIG elements. 1045 * This overrides the default magic get method of %SIG elements.
891 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1046 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
892 * and instead of trying to save and restore the hash elements, we just provide 1047 * and instead of trying to save and restore the hash elements (extremely slow),
893 * readback here. 1048 * we just provide our own readback here.
894 */ 1049 */
895static int 1050static int ecb_cold
896coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1051coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
897{ 1052{
898 const char *s = MgPV_nolen_const (mg); 1053 const char *s = MgPV_nolen_const (mg);
899 1054
900 if (*s == '_') 1055 if (*s == '_')
901 { 1056 {
902 SV **svp = 0; 1057 SV **svp = 0;
903 1058
904 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1059 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
905 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1060 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
906 1061
907 if (svp) 1062 if (svp)
908 { 1063 {
909 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1064 SV *ssv;
1065
1066 if (!*svp)
1067 ssv = &PL_sv_undef;
1068 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1069 ssv = sv_2mortal (newRV_inc (*svp));
1070 else
1071 ssv = *svp;
1072
1073 sv_setsv (sv, ssv);
910 return 0; 1074 return 0;
911 } 1075 }
912 } 1076 }
913 1077
914 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1078 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
915} 1079}
916 1080
917static int 1081static int ecb_cold
918coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1082coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
919{ 1083{
920 const char *s = MgPV_nolen_const (mg); 1084 const char *s = MgPV_nolen_const (mg);
921 1085
922 if (*s == '_') 1086 if (*s == '_')
… …
936 } 1100 }
937 1101
938 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1102 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
939} 1103}
940 1104
941static int 1105static int ecb_cold
942coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1106coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
943{ 1107{
944 const char *s = MgPV_nolen_const (mg); 1108 const char *s = MgPV_nolen_const (mg);
945 1109
946 if (*s == '_') 1110 if (*s == '_')
… …
979slf_check_repeat (pTHX_ struct CoroSLF *frame) 1143slf_check_repeat (pTHX_ struct CoroSLF *frame)
980{ 1144{
981 return 1; 1145 return 1;
982} 1146}
983 1147
984static UNOP coro_setup_op; 1148static UNOP init_perl_op;
985 1149
986static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1150ecb_noinline static void /* noinline to keep it out of the transfer fast path */
987coro_setup (pTHX_ struct coro *coro) 1151init_perl (pTHX_ struct coro *coro)
988{ 1152{
989 /* 1153 /*
990 * emulate part of the perl startup here. 1154 * emulate part of the perl startup here.
991 */ 1155 */
992 coro_init_stacks (aTHX); 1156 coro_init_stacks (aTHX);
… …
999 PL_comppad_name_fill = 0; 1163 PL_comppad_name_fill = 0;
1000 PL_comppad_name_floor = 0; 1164 PL_comppad_name_floor = 0;
1001 PL_curpm = 0; 1165 PL_curpm = 0;
1002 PL_curpad = 0; 1166 PL_curpad = 0;
1003 PL_localizing = 0; 1167 PL_localizing = 0;
1004 PL_dirty = 0;
1005 PL_restartop = 0; 1168 PL_restartop = 0;
1006#if PERL_VERSION_ATLEAST (5,10,0) 1169#if PERL_VERSION_ATLEAST (5,10,0)
1007 PL_parser = 0; 1170 PL_parser = 0;
1008#endif 1171#endif
1009 PL_hints = 0; 1172 PL_hints = 0;
1010 1173
1011 /* recreate the die/warn hooks */ 1174 /* recreate the die/warn hooks */
1012 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1175 PL_diehook = SvREFCNT_inc (rv_diehook);
1013 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1176 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1014 1177
1015 GvSV (PL_defgv) = newSV (0); 1178 GvSV (PL_defgv) = newSV (0);
1016 GvAV (PL_defgv) = coro->args; coro->args = 0; 1179 GvAV (PL_defgv) = coro->args; coro->args = 0;
1017 GvSV (PL_errgv) = newSV (0); 1180 GvSV (PL_errgv) = newSV (0);
1018 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1181 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1019 GvHV (PL_hintgv) = 0; 1182 GvHV (PL_hintgv) = newHV ();
1183#if PERL_VERSION_ATLEAST (5,10,0)
1184 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1185#endif
1020 PL_rs = newSVsv (GvSV (irsgv)); 1186 PL_rs = newSVsv (GvSV (irsgv));
1021 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1187 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1022 1188
1023 { 1189 {
1024 dSP; 1190 dSP;
… …
1039 /* this newly created coroutine might be run on an existing cctx which most 1205 /* this newly created coroutine might be run on an existing cctx which most
1040 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1206 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
1041 */ 1207 */
1042 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1208 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
1043 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1209 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1210 slf_frame.destroy = 0;
1044 1211
1045 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1212 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
1046 coro_setup_op.op_next = PL_op; 1213 init_perl_op.op_next = PL_op;
1047 coro_setup_op.op_type = OP_ENTERSUB; 1214 init_perl_op.op_type = OP_ENTERSUB;
1048 coro_setup_op.op_ppaddr = pp_slf; 1215 init_perl_op.op_ppaddr = pp_slf;
1049 /* no flags etc. required, as an init function won't be called */ 1216 /* no flags etc. required, as an init function won't be called */
1050 1217
1051 PL_op = (OP *)&coro_setup_op; 1218 PL_op = (OP *)&init_perl_op;
1052 1219
1053 /* copy throw, in case it was set before coro_setup */ 1220 /* copy throw, in case it was set before init_perl */
1054 CORO_THROW = coro->except; 1221 CORO_THROW = coro->except;
1055 1222
1223 SWAP_SVS (coro);
1224
1056 if (expect_false (enable_times)) 1225 if (ecb_expect_false (enable_times))
1057 { 1226 {
1058 coro_times_update (); 1227 coro_times_update ();
1059 coro_times_sub (coro); 1228 coro_times_sub (coro);
1060 } 1229 }
1061} 1230}
… …
1080 dounwind (-1); 1249 dounwind (-1);
1081 } 1250 }
1082} 1251}
1083 1252
1084static void 1253static void
1085coro_destruct_perl (pTHX_ struct coro *coro) 1254destroy_perl (pTHX_ struct coro *coro)
1086{ 1255{
1087 SV *svf [9]; 1256 SV *svf [9];
1088 1257
1089 { 1258 {
1259 SV *old_current = SvRV (coro_current);
1090 struct coro *current = SvSTATE_current; 1260 struct coro *current = SvSTATE (old_current);
1091 1261
1092 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1262 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1093 1263
1094 save_perl (aTHX_ current); 1264 save_perl (aTHX_ current);
1265
1266 /* this will cause transfer_check to croak on block*/
1267 SvRV_set (coro_current, (SV *)coro->hv);
1268
1095 load_perl (aTHX_ coro); 1269 load_perl (aTHX_ coro);
1096 1270
1097 coro_unwind_stacks (aTHX); 1271 coro_unwind_stacks (aTHX);
1272
1273 /* restore swapped sv's */
1274 SWAP_SVS (coro);
1275
1098 coro_destruct_stacks (aTHX); 1276 coro_destruct_stacks (aTHX);
1099 1277
1100 // now save some sv's to be free'd later 1278 /* now save some sv's to be free'd later */
1101 svf [0] = GvSV (PL_defgv); 1279 svf [0] = GvSV (PL_defgv);
1102 svf [1] = (SV *)GvAV (PL_defgv); 1280 svf [1] = (SV *)GvAV (PL_defgv);
1103 svf [2] = GvSV (PL_errgv); 1281 svf [2] = GvSV (PL_errgv);
1104 svf [3] = (SV *)PL_defoutgv; 1282 svf [3] = (SV *)PL_defoutgv;
1105 svf [4] = PL_rs; 1283 svf [4] = PL_rs;
… …
1107 svf [6] = (SV *)GvHV (PL_hintgv); 1285 svf [6] = (SV *)GvHV (PL_hintgv);
1108 svf [7] = PL_diehook; 1286 svf [7] = PL_diehook;
1109 svf [8] = PL_warnhook; 1287 svf [8] = PL_warnhook;
1110 assert (9 == sizeof (svf) / sizeof (*svf)); 1288 assert (9 == sizeof (svf) / sizeof (*svf));
1111 1289
1290 SvRV_set (coro_current, old_current);
1291
1112 load_perl (aTHX_ current); 1292 load_perl (aTHX_ current);
1113 } 1293 }
1114 1294
1115 { 1295 {
1116 int i; 1296 unsigned int i;
1117 1297
1118 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) 1298 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1119 SvREFCNT_dec (svf [i]); 1299 SvREFCNT_dec (svf [i]);
1120 1300
1121 SvREFCNT_dec (coro->saved_deffh); 1301 SvREFCNT_dec (coro->saved_deffh);
1122 SvREFCNT_dec (coro->rouse_cb); 1302 SvREFCNT_dec (coro->rouse_cb);
1123 SvREFCNT_dec (coro->invoke_cb); 1303 SvREFCNT_dec (coro->invoke_cb);
1124 SvREFCNT_dec (coro->invoke_av); 1304 SvREFCNT_dec (coro->invoke_av);
1305 SvREFCNT_dec (coro->on_enter_xs);
1306 SvREFCNT_dec (coro->on_leave_xs);
1125 } 1307 }
1126} 1308}
1127 1309
1128INLINE void 1310ecb_inline void
1129free_coro_mortal (pTHX) 1311free_coro_mortal (pTHX)
1130{ 1312{
1131 if (expect_true (coro_mortal)) 1313 if (ecb_expect_true (coro_mortal))
1132 { 1314 {
1133 SvREFCNT_dec (coro_mortal); 1315 SvREFCNT_dec ((SV *)coro_mortal);
1134 coro_mortal = 0; 1316 coro_mortal = 0;
1135 } 1317 }
1136} 1318}
1137 1319
1138static int 1320static int
… …
1192 1374
1193 if (PL_curcop != &PL_compiling) 1375 if (PL_curcop != &PL_compiling)
1194 { 1376 {
1195 SV **cb; 1377 SV **cb;
1196 1378
1197 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) 1379 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1198 { 1380 {
1199 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1381 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1200 1382
1201 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1383 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1202 { 1384 {
… …
1271 1453
1272 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1454 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1273} 1455}
1274 1456
1275/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1457/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1276static void NOINLINE 1458static void ecb_noinline
1277cctx_prepare (pTHX) 1459cctx_prepare (pTHX)
1278{ 1460{
1279 PL_top_env = &PL_start_env; 1461 PL_top_env = &PL_start_env;
1280 1462
1281 if (cctx_current->flags & CC_TRACE) 1463 if (cctx_current->flags & CC_TRACE)
… …
1292 slf_frame.prepare = slf_prepare_set_stacklevel; 1474 slf_frame.prepare = slf_prepare_set_stacklevel;
1293 slf_frame.check = slf_check_set_stacklevel; 1475 slf_frame.check = slf_check_set_stacklevel;
1294} 1476}
1295 1477
1296/* the tail of transfer: execute stuff we can only do after a transfer */ 1478/* the tail of transfer: execute stuff we can only do after a transfer */
1297INLINE void 1479ecb_inline void
1298transfer_tail (pTHX) 1480transfer_tail (pTHX)
1299{ 1481{
1300 free_coro_mortal (aTHX); 1482 free_coro_mortal (aTHX);
1483}
1484
1485/* try to exit the same way perl's main function would do */
1486/* we do not bother resetting the environment or other things *7
1487/* that are not, uhm, essential */
1488/* this obviously also doesn't work when perl is embedded */
1489static void ecb_noinline ecb_cold
1490perlish_exit (pTHX)
1491{
1492 int exitstatus = perl_destruct (PL_curinterp);
1493 perl_free (PL_curinterp);
1494 exit (exitstatus);
1301} 1495}
1302 1496
1303/* 1497/*
1304 * this is a _very_ stripped down perl interpreter ;) 1498 * this is a _very_ stripped down perl interpreter ;)
1305 */ 1499 */
… …
1327 /* somebody or something will hit me for both perl_run and PL_restartop */ 1521 /* somebody or something will hit me for both perl_run and PL_restartop */
1328 PL_restartop = PL_op; 1522 PL_restartop = PL_op;
1329 perl_run (PL_curinterp); 1523 perl_run (PL_curinterp);
1330 /* 1524 /*
1331 * Unfortunately, there is no way to get at the return values of the 1525 * Unfortunately, there is no way to get at the return values of the
1332 * coro body here, as perl_run destroys these 1526 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1527 * runtime errors here, as this is just a random interpreter, not a thread.
1333 */ 1528 */
1334 1529
1335 /* 1530 /*
1336 * If perl-run returns we assume exit() was being called or the coro 1531 * If perl-run returns we assume exit() was being called or the coro
1337 * fell off the end, which seems to be the only valid (non-bug) 1532 * fell off the end, which seems to be the only valid (non-bug)
1338 * reason for perl_run to return. We try to exit by jumping to the 1533 * reason for perl_run to return. We try to mimic whatever perl is normally
1339 * bootstrap-time "top" top_env, as we cannot restore the "main" 1534 * doing in that case. YMMV.
1340 * coroutine as Coro has no such concept.
1341 * This actually isn't valid with the pthread backend, but OSes requiring
1342 * that backend are too broken to do it in a standards-compliant way.
1343 */ 1535 */
1344 PL_top_env = main_top_env; 1536 perlish_exit (aTHX);
1345 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1346 } 1537 }
1347} 1538}
1348 1539
1349static coro_cctx * 1540static coro_cctx *
1350cctx_new () 1541cctx_new (void)
1351{ 1542{
1352 coro_cctx *cctx; 1543 coro_cctx *cctx;
1353 1544
1354 ++cctx_count; 1545 ++cctx_count;
1355 New (0, cctx, 1, coro_cctx); 1546 New (0, cctx, 1, coro_cctx);
… …
1361 return cctx; 1552 return cctx;
1362} 1553}
1363 1554
1364/* create a new cctx only suitable as source */ 1555/* create a new cctx only suitable as source */
1365static coro_cctx * 1556static coro_cctx *
1366cctx_new_empty () 1557cctx_new_empty (void)
1367{ 1558{
1368 coro_cctx *cctx = cctx_new (); 1559 coro_cctx *cctx = cctx_new ();
1369 1560
1370 cctx->sptr = 0; 1561 cctx->stack.sptr = 0;
1371 coro_create (&cctx->cctx, 0, 0, 0, 0); 1562 coro_create (&cctx->cctx, 0, 0, 0, 0);
1372 1563
1373 return cctx; 1564 return cctx;
1374} 1565}
1375 1566
1376/* create a new cctx suitable as destination/running a perl interpreter */ 1567/* create a new cctx suitable as destination/running a perl interpreter */
1377static coro_cctx * 1568static coro_cctx *
1378cctx_new_run () 1569cctx_new_run (void)
1379{ 1570{
1380 coro_cctx *cctx = cctx_new (); 1571 coro_cctx *cctx = cctx_new ();
1381 void *stack_start;
1382 size_t stack_size;
1383 1572
1384#if HAVE_MMAP 1573 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1385 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1386 /* mmap supposedly does allocate-on-write for us */
1387 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1388
1389 if (cctx->sptr != (void *)-1)
1390 {
1391 #if CORO_STACKGUARD
1392 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1393 #endif
1394 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1395 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1396 cctx->flags |= CC_MAPPED;
1397 } 1574 {
1398 else
1399#endif
1400 {
1401 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1402 New (0, cctx->sptr, cctx_stacksize, long);
1403
1404 if (!cctx->sptr)
1405 {
1406 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1575 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1407 _exit (EXIT_FAILURE); 1576 _exit (EXIT_FAILURE);
1408 }
1409
1410 stack_start = cctx->sptr;
1411 stack_size = cctx->ssize;
1412 } 1577 }
1413 1578
1414 #if CORO_USE_VALGRIND
1415 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1416 #endif
1417
1418 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1579 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1419 1580
1420 return cctx; 1581 return cctx;
1421} 1582}
1422 1583
1423static void 1584static void
1424cctx_destroy (coro_cctx *cctx) 1585cctx_destroy (coro_cctx *cctx)
1425{ 1586{
1426 if (!cctx) 1587 if (!cctx)
1427 return; 1588 return;
1428 1589
1429 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1590 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1430 1591
1431 --cctx_count; 1592 --cctx_count;
1432 coro_destroy (&cctx->cctx); 1593 coro_destroy (&cctx->cctx);
1433 1594
1434 /* coro_transfer creates new, empty cctx's */ 1595 coro_stack_free (&cctx->stack);
1435 if (cctx->sptr)
1436 {
1437 #if CORO_USE_VALGRIND
1438 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1439 #endif
1440
1441#if HAVE_MMAP
1442 if (cctx->flags & CC_MAPPED)
1443 munmap (cctx->sptr, cctx->ssize);
1444 else
1445#endif
1446 Safefree (cctx->sptr);
1447 }
1448 1596
1449 Safefree (cctx); 1597 Safefree (cctx);
1450} 1598}
1451 1599
1452/* wether this cctx should be destructed */ 1600/* wether this cctx should be destructed */
1453#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1601#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1454 1602
1455static coro_cctx * 1603static coro_cctx *
1456cctx_get (pTHX) 1604cctx_get (pTHX)
1457{ 1605{
1458 while (expect_true (cctx_first)) 1606 while (ecb_expect_true (cctx_first))
1459 { 1607 {
1460 coro_cctx *cctx = cctx_first; 1608 coro_cctx *cctx = cctx_first;
1461 cctx_first = cctx->next; 1609 cctx_first = cctx->next;
1462 --cctx_idle; 1610 --cctx_idle;
1463 1611
1464 if (expect_true (!CCTX_EXPIRED (cctx))) 1612 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1465 return cctx; 1613 return cctx;
1466 1614
1467 cctx_destroy (cctx); 1615 cctx_destroy (cctx);
1468 } 1616 }
1469 1617
… …
1471} 1619}
1472 1620
1473static void 1621static void
1474cctx_put (coro_cctx *cctx) 1622cctx_put (coro_cctx *cctx)
1475{ 1623{
1476 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1624 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1477 1625
1478 /* free another cctx if overlimit */ 1626 /* free another cctx if overlimit */
1479 if (expect_false (cctx_idle >= cctx_max_idle)) 1627 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1480 { 1628 {
1481 coro_cctx *first = cctx_first; 1629 coro_cctx *first = cctx_first;
1482 cctx_first = first->next; 1630 cctx_first = first->next;
1483 --cctx_idle; 1631 --cctx_idle;
1484 1632
… …
1495static void 1643static void
1496transfer_check (pTHX_ struct coro *prev, struct coro *next) 1644transfer_check (pTHX_ struct coro *prev, struct coro *next)
1497{ 1645{
1498 /* TODO: throwing up here is considered harmful */ 1646 /* TODO: throwing up here is considered harmful */
1499 1647
1500 if (expect_true (prev != next)) 1648 if (ecb_expect_true (prev != next))
1501 { 1649 {
1502 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1650 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1503 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1651 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1504 1652
1505 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1653 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1506 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1654 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1507 1655
1508#if !PERL_VERSION_ATLEAST (5,10,0) 1656#if !PERL_VERSION_ATLEAST (5,10,0)
1509 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1657 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1510 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1658 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1511#endif 1659#endif
1512 } 1660 }
1513} 1661}
1514 1662
1515/* always use the TRANSFER macro */ 1663/* always use the TRANSFER macro */
1516static void NOINLINE /* noinline so we have a fixed stackframe */ 1664static void ecb_noinline /* noinline so we have a fixed stackframe */
1517transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1665transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1518{ 1666{
1519 dSTACKLEVEL; 1667 dSTACKLEVEL;
1520 1668
1521 /* sometimes transfer is only called to set idle_sp */ 1669 /* sometimes transfer is only called to set idle_sp */
1522 if (expect_false (!prev)) 1670 if (ecb_expect_false (!prev))
1523 { 1671 {
1524 cctx_current->idle_sp = STACKLEVEL; 1672 cctx_current->idle_sp = STACKLEVEL;
1525 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1673 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1526 } 1674 }
1527 else if (expect_true (prev != next)) 1675 else if (ecb_expect_true (prev != next))
1528 { 1676 {
1529 coro_cctx *cctx_prev; 1677 coro_cctx *cctx_prev;
1530 1678
1531 if (expect_false (prev->flags & CF_NEW)) 1679 if (ecb_expect_false (prev->flags & CF_NEW))
1532 { 1680 {
1533 /* create a new empty/source context */ 1681 /* create a new empty/source context */
1534 prev->flags &= ~CF_NEW; 1682 prev->flags &= ~CF_NEW;
1535 prev->flags |= CF_RUNNING; 1683 prev->flags |= CF_RUNNING;
1536 } 1684 }
… …
1539 next->flags |= CF_RUNNING; 1687 next->flags |= CF_RUNNING;
1540 1688
1541 /* first get rid of the old state */ 1689 /* first get rid of the old state */
1542 save_perl (aTHX_ prev); 1690 save_perl (aTHX_ prev);
1543 1691
1544 if (expect_false (next->flags & CF_NEW)) 1692 if (ecb_expect_false (next->flags & CF_NEW))
1545 { 1693 {
1546 /* need to start coroutine */ 1694 /* need to start coroutine */
1547 next->flags &= ~CF_NEW; 1695 next->flags &= ~CF_NEW;
1548 /* setup coroutine call */ 1696 /* setup coroutine call */
1549 coro_setup (aTHX_ next); 1697 init_perl (aTHX_ next);
1550 } 1698 }
1551 else 1699 else
1552 load_perl (aTHX_ next); 1700 load_perl (aTHX_ next);
1553 1701
1554 /* possibly untie and reuse the cctx */ 1702 /* possibly untie and reuse the cctx */
1555 if (expect_true ( 1703 if (ecb_expect_true (
1556 cctx_current->idle_sp == STACKLEVEL 1704 cctx_current->idle_sp == STACKLEVEL
1557 && !(cctx_current->flags & CC_TRACE) 1705 && !(cctx_current->flags & CC_TRACE)
1558 && !force_cctx 1706 && !force_cctx
1559 )) 1707 ))
1560 { 1708 {
1561 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1709 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1562 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1710 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1563 1711
1564 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1712 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1565 /* without this the next cctx_get might destroy the running cctx while still in use */ 1713 /* without this the next cctx_get might destroy the running cctx while still in use */
1566 if (expect_false (CCTX_EXPIRED (cctx_current))) 1714 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1567 if (expect_true (!next->cctx)) 1715 if (ecb_expect_true (!next->cctx))
1568 next->cctx = cctx_get (aTHX); 1716 next->cctx = cctx_get (aTHX);
1569 1717
1570 cctx_put (cctx_current); 1718 cctx_put (cctx_current);
1571 } 1719 }
1572 else 1720 else
1573 prev->cctx = cctx_current; 1721 prev->cctx = cctx_current;
1574 1722
1575 ++next->usecount; 1723 ++next->usecount;
1576 1724
1577 cctx_prev = cctx_current; 1725 cctx_prev = cctx_current;
1578 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1726 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1579 1727
1580 next->cctx = 0; 1728 next->cctx = 0;
1581 1729
1582 if (expect_false (cctx_prev != cctx_current)) 1730 if (ecb_expect_false (cctx_prev != cctx_current))
1583 { 1731 {
1584 cctx_prev->top_env = PL_top_env; 1732 cctx_prev->top_env = PL_top_env;
1585 PL_top_env = cctx_current->top_env; 1733 PL_top_env = cctx_current->top_env;
1586 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1734 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1587 } 1735 }
… …
1593#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1741#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1594#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1742#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1595 1743
1596/** high level stuff ********************************************************/ 1744/** high level stuff ********************************************************/
1597 1745
1746/* this function is actually Coro, not Coro::State, but we call it from here */
1747/* because it is convenient - but it hasn't been declared yet for that reason */
1598static int 1748static void
1749coro_call_on_destroy (pTHX_ struct coro *coro);
1750
1751static void
1599coro_state_destroy (pTHX_ struct coro *coro) 1752coro_state_destroy (pTHX_ struct coro *coro)
1600{ 1753{
1601 if (coro->flags & CF_DESTROYED) 1754 if (coro->flags & CF_ZOMBIE)
1602 return 0; 1755 return;
1603 1756
1604 if (coro->on_destroy && !PL_dirty)
1605 coro->on_destroy (aTHX_ coro); 1757 slf_destroy (aTHX_ coro);
1606 1758
1607 coro->flags |= CF_DESTROYED; 1759 coro->flags |= CF_ZOMBIE;
1608 1760
1609 if (coro->flags & CF_READY) 1761 if (coro->flags & CF_READY)
1610 { 1762 {
1611 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1763 /* reduce nready, as destroying a ready coro effectively unreadies it */
1612 /* alternative: look through all ready queues and remove the coro */ 1764 /* alternative: look through all ready queues and remove the coro */
1613 --coro_nready; 1765 --coro_nready;
1614 } 1766 }
1615 else 1767 else
1616 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1768 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1769
1770 if (coro->next) coro->next->prev = coro->prev;
1771 if (coro->prev) coro->prev->next = coro->next;
1772 if (coro == coro_first) coro_first = coro->next;
1617 1773
1618 if (coro->mainstack 1774 if (coro->mainstack
1619 && coro->mainstack != main_mainstack 1775 && coro->mainstack != main_mainstack
1620 && coro->slot 1776 && coro->slot
1621 && !PL_dirty) 1777 && !PL_dirty)
1622 coro_destruct_perl (aTHX_ coro); 1778 destroy_perl (aTHX_ coro);
1623 1779
1624 cctx_destroy (coro->cctx); 1780 cctx_destroy (coro->cctx);
1625 SvREFCNT_dec (coro->startcv); 1781 SvREFCNT_dec (coro->startcv);
1626 SvREFCNT_dec (coro->args); 1782 SvREFCNT_dec (coro->args);
1783 SvREFCNT_dec (coro->swap_sv);
1627 SvREFCNT_dec (CORO_THROW); 1784 SvREFCNT_dec (CORO_THROW);
1628 1785
1629 if (coro->next) coro->next->prev = coro->prev; 1786 coro_call_on_destroy (aTHX_ coro);
1630 if (coro->prev) coro->prev->next = coro->next;
1631 if (coro == coro_first) coro_first = coro->next;
1632 1787
1633 return 1; 1788 /* more destruction mayhem in coro_state_free */
1634} 1789}
1635 1790
1636static int 1791static int
1637coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1792coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1638{ 1793{
1639 struct coro *coro = (struct coro *)mg->mg_ptr; 1794 struct coro *coro = (struct coro *)mg->mg_ptr;
1640 mg->mg_ptr = 0; 1795 mg->mg_ptr = 0;
1641 1796
1642 coro->hv = 0;
1643
1644 if (--coro->refcnt < 0)
1645 {
1646 coro_state_destroy (aTHX_ coro); 1797 coro_state_destroy (aTHX_ coro);
1798 SvREFCNT_dec (coro->on_destroy);
1799 SvREFCNT_dec (coro->status);
1800
1647 Safefree (coro); 1801 Safefree (coro);
1648 }
1649 1802
1650 return 0; 1803 return 0;
1651} 1804}
1652 1805
1653static int 1806static int ecb_cold
1654coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1807coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1655{ 1808{
1656 struct coro *coro = (struct coro *)mg->mg_ptr; 1809 /* called when perl clones the current process the slow way (windows process emulation) */
1657 1810 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1658 ++coro->refcnt; 1811 mg->mg_ptr = 0;
1812 mg->mg_virtual = 0;
1659 1813
1660 return 0; 1814 return 0;
1661} 1815}
1662 1816
1663static MGVTBL coro_state_vtbl = { 1817static MGVTBL coro_state_vtbl = {
… …
1686 1840
1687 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1841 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1688 TRANSFER (ta, 1); 1842 TRANSFER (ta, 1);
1689} 1843}
1690 1844
1691/*****************************************************************************/
1692/* gensub: simple closure generation utility */
1693
1694#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1695
1696/* create a closure from XS, returns a code reference */
1697/* the arg can be accessed via GENSUB_ARG from the callback */
1698/* the callback must use dXSARGS/XSRETURN */
1699static SV *
1700gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1701{
1702 CV *cv = (CV *)newSV (0);
1703
1704 sv_upgrade ((SV *)cv, SVt_PVCV);
1705
1706 CvANON_on (cv);
1707 CvISXSUB_on (cv);
1708 CvXSUB (cv) = xsub;
1709 GENSUB_ARG = arg;
1710
1711 return newRV_noinc ((SV *)cv);
1712}
1713
1714/** Coro ********************************************************************/ 1845/** Coro ********************************************************************/
1715 1846
1716INLINE void 1847ecb_inline void
1717coro_enq (pTHX_ struct coro *coro) 1848coro_enq (pTHX_ struct coro *coro)
1718{ 1849{
1719 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1850 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1720 1851
1721 SvREFCNT_inc_NN (coro->hv); 1852 SvREFCNT_inc_NN (coro->hv);
… …
1723 coro->next_ready = 0; 1854 coro->next_ready = 0;
1724 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1855 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1725 ready [1] = coro; 1856 ready [1] = coro;
1726} 1857}
1727 1858
1728INLINE struct coro * 1859ecb_inline struct coro *
1729coro_deq (pTHX) 1860coro_deq (pTHX)
1730{ 1861{
1731 int prio; 1862 int prio;
1732 1863
1733 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1864 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1743 } 1874 }
1744 1875
1745 return 0; 1876 return 0;
1746} 1877}
1747 1878
1879static void
1880invoke_sv_ready_hook_helper (void)
1881{
1882 dTHX;
1883 dSP;
1884
1885 ENTER;
1886 SAVETMPS;
1887
1888 PUSHMARK (SP);
1889 PUTBACK;
1890 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1891
1892 FREETMPS;
1893 LEAVE;
1894}
1895
1748static int 1896static int
1749api_ready (pTHX_ SV *coro_sv) 1897api_ready (pTHX_ SV *coro_sv)
1750{ 1898{
1751 struct coro *coro;
1752 SV *sv_hook;
1753 void (*xs_hook)(void);
1754
1755 coro = SvSTATE (coro_sv); 1899 struct coro *coro = SvSTATE (coro_sv);
1756 1900
1757 if (coro->flags & CF_READY) 1901 if (coro->flags & CF_READY)
1758 return 0; 1902 return 0;
1759 1903
1760 coro->flags |= CF_READY; 1904 coro->flags |= CF_READY;
1761 1905
1762 sv_hook = coro_nready ? 0 : coro_readyhook;
1763 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1764
1765 coro_enq (aTHX_ coro); 1906 coro_enq (aTHX_ coro);
1766 ++coro_nready;
1767 1907
1768 if (sv_hook) 1908 if (!coro_nready++)
1769 { 1909 if (coroapi.readyhook)
1770 dSP; 1910 coroapi.readyhook ();
1771
1772 ENTER;
1773 SAVETMPS;
1774
1775 PUSHMARK (SP);
1776 PUTBACK;
1777 call_sv (sv_hook, G_VOID | G_DISCARD);
1778
1779 FREETMPS;
1780 LEAVE;
1781 }
1782
1783 if (xs_hook)
1784 xs_hook ();
1785 1911
1786 return 1; 1912 return 1;
1787} 1913}
1788 1914
1789static int 1915static int
… …
1791{ 1917{
1792 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1918 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1793} 1919}
1794 1920
1795/* expects to own a reference to next->hv */ 1921/* expects to own a reference to next->hv */
1796INLINE void 1922ecb_inline void
1797prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1923prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1798{ 1924{
1799 SV *prev_sv = SvRV (coro_current); 1925 SV *prev_sv = SvRV (coro_current);
1800 1926
1801 ta->prev = SvSTATE_hv (prev_sv); 1927 ta->prev = SvSTATE_hv (prev_sv);
… …
1814{ 1940{
1815 for (;;) 1941 for (;;)
1816 { 1942 {
1817 struct coro *next = coro_deq (aTHX); 1943 struct coro *next = coro_deq (aTHX);
1818 1944
1819 if (expect_true (next)) 1945 if (ecb_expect_true (next))
1820 { 1946 {
1821 /* cannot transfer to destroyed coros, skip and look for next */ 1947 /* cannot transfer to destroyed coros, skip and look for next */
1822 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1948 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1823 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1949 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1824 else 1950 else
1825 { 1951 {
1826 next->flags &= ~CF_READY; 1952 next->flags &= ~CF_READY;
1827 --coro_nready; 1953 --coro_nready;
… …
1834 { 1960 {
1835 /* nothing to schedule: call the idle handler */ 1961 /* nothing to schedule: call the idle handler */
1836 if (SvROK (sv_idle) 1962 if (SvROK (sv_idle)
1837 && SvOBJECT (SvRV (sv_idle))) 1963 && SvOBJECT (SvRV (sv_idle)))
1838 { 1964 {
1965 if (SvRV (sv_idle) == SvRV (coro_current))
1966 {
1967 require_pv ("Carp");
1968
1969 {
1970 dSP;
1971
1972 ENTER;
1973 SAVETMPS;
1974
1975 PUSHMARK (SP);
1976 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1977 PUTBACK;
1978 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1979
1980 FREETMPS;
1981 LEAVE;
1982 }
1983 }
1984
1839 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1985 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1840 api_ready (aTHX_ SvRV (sv_idle)); 1986 api_ready (aTHX_ SvRV (sv_idle));
1841 --coro_nready; 1987 --coro_nready;
1842 } 1988 }
1843 else 1989 else
1844 { 1990 {
1991 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1845 dSP; 1992 dSP;
1846 1993
1847 ENTER; 1994 ENTER;
1848 SAVETMPS; 1995 SAVETMPS;
1849 1996
… …
1856 } 2003 }
1857 } 2004 }
1858 } 2005 }
1859} 2006}
1860 2007
1861INLINE void 2008ecb_inline void
1862prepare_cede (pTHX_ struct coro_transfer_args *ta) 2009prepare_cede (pTHX_ struct coro_transfer_args *ta)
1863{ 2010{
1864 api_ready (aTHX_ coro_current); 2011 api_ready (aTHX_ coro_current);
1865 prepare_schedule (aTHX_ ta); 2012 prepare_schedule (aTHX_ ta);
1866} 2013}
1867 2014
1868INLINE void 2015ecb_inline void
1869prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2016prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1870{ 2017{
1871 SV *prev = SvRV (coro_current); 2018 SV *prev = SvRV (coro_current);
1872 2019
1873 if (coro_nready) 2020 if (coro_nready)
… …
1903{ 2050{
1904 struct coro_transfer_args ta; 2051 struct coro_transfer_args ta;
1905 2052
1906 prepare_cede (aTHX_ &ta); 2053 prepare_cede (aTHX_ &ta);
1907 2054
1908 if (expect_true (ta.prev != ta.next)) 2055 if (ecb_expect_true (ta.prev != ta.next))
1909 { 2056 {
1910 TRANSFER (ta, 1); 2057 TRANSFER (ta, 1);
1911 return 1; 2058 return 1;
1912 } 2059 }
1913 else 2060 else
… …
1956 coro->slot->runops = RUNOPS_DEFAULT; 2103 coro->slot->runops = RUNOPS_DEFAULT;
1957 } 2104 }
1958} 2105}
1959 2106
1960static void 2107static void
2108coro_push_av (pTHX_ AV *av, I32 gimme_v)
2109{
2110 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2111 {
2112 dSP;
2113
2114 if (gimme_v == G_SCALAR)
2115 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2116 else
2117 {
2118 int i;
2119 EXTEND (SP, AvFILLp (av) + 1);
2120
2121 for (i = 0; i <= AvFILLp (av); ++i)
2122 PUSHs (AvARRAY (av)[i]);
2123 }
2124
2125 PUTBACK;
2126 }
2127}
2128
2129static void
2130coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2131{
2132 if (!coro->on_destroy)
2133 coro->on_destroy = newAV ();
2134
2135 av_push (coro->on_destroy, cb);
2136}
2137
2138static void
2139slf_destroy_join (pTHX_ struct CoroSLF *frame)
2140{
2141 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2142}
2143
2144static int
2145slf_check_join (pTHX_ struct CoroSLF *frame)
2146{
2147 struct coro *coro = (struct coro *)frame->data;
2148
2149 if (!coro->status)
2150 return 1;
2151
2152 frame->destroy = 0;
2153
2154 coro_push_av (aTHX_ coro->status, GIMME_V);
2155
2156 SvREFCNT_dec ((SV *)coro->hv);
2157
2158 return 0;
2159}
2160
2161static void
2162slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2163{
2164 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2165
2166 if (items > 1)
2167 croak ("join called with too many arguments");
2168
2169 if (coro->status)
2170 frame->prepare = prepare_nop;
2171 else
2172 {
2173 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2174 frame->prepare = prepare_schedule;
2175 }
2176
2177 frame->check = slf_check_join;
2178 frame->destroy = slf_destroy_join;
2179 frame->data = (void *)coro;
2180 SvREFCNT_inc (coro->hv);
2181}
2182
2183static void
1961coro_call_on_destroy (pTHX_ struct coro *coro) 2184coro_call_on_destroy (pTHX_ struct coro *coro)
1962{ 2185{
1963 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2186 AV *od = coro->on_destroy;
1964 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1965 2187
1966 if (on_destroyp) 2188 if (!od)
1967 { 2189 return;
1968 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1969 2190
2191 coro->on_destroy = 0;
2192 sv_2mortal ((SV *)od);
2193
1970 while (AvFILLp (on_destroy) >= 0) 2194 while (AvFILLp (od) >= 0)
2195 {
2196 SV *cb = sv_2mortal (av_pop (od));
2197
2198 /* coro hv's (and only hv's at the moment) are supported as well */
2199 if (SvSTATEhv_p (aTHX_ cb))
2200 api_ready (aTHX_ cb);
2201 else
1971 { 2202 {
1972 dSP; /* don't disturb outer sp */ 2203 dSP; /* don't disturb outer sp */
1973 SV *cb = av_pop (on_destroy);
1974
1975 PUSHMARK (SP); 2204 PUSHMARK (SP);
1976 2205
1977 if (statusp) 2206 if (coro->status)
1978 { 2207 {
1979 int i; 2208 PUTBACK;
1980 AV *status = (AV *)SvRV (*statusp); 2209 coro_push_av (aTHX_ coro->status, G_ARRAY);
1981 EXTEND (SP, AvFILLp (status) + 1); 2210 SPAGAIN;
1982
1983 for (i = 0; i <= AvFILLp (status); ++i)
1984 PUSHs (AvARRAY (status)[i]);
1985 } 2211 }
1986 2212
1987 PUTBACK; 2213 PUTBACK;
1988 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2214 call_sv (cb, G_VOID | G_DISCARD);
1989 } 2215 }
1990 } 2216 }
1991} 2217}
1992 2218
1993static void 2219static void
1994slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2220coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1995{ 2221{
2222 AV *av;
2223
2224 if (coro->status)
2225 {
2226 av = coro->status;
2227 av_clear (av);
2228 }
2229 else
2230 av = coro->status = newAV ();
2231
2232 /* items are actually not so common, so optimise for this case */
2233 if (items)
2234 {
1996 int i; 2235 int i;
1997 HV *hv = (HV *)SvRV (coro_current);
1998 AV *av = newAV ();
1999 2236
2000 av_extend (av, items - 1); 2237 av_extend (av, items - 1);
2238
2001 for (i = 0; i < items; ++i) 2239 for (i = 0; i < items; ++i)
2002 av_push (av, SvREFCNT_inc_NN (arg [i])); 2240 av_push (av, SvREFCNT_inc_NN (arg [i]));
2241 }
2242}
2003 2243
2004 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2244static void
2005 2245slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2246{
2006 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2247 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2007 api_ready (aTHX_ sv_manager); 2248 api_ready (aTHX_ sv_manager);
2008 2249
2009 frame->prepare = prepare_schedule; 2250 frame->prepare = prepare_schedule;
2010 frame->check = slf_check_repeat; 2251 frame->check = slf_check_repeat;
2011 2252
2012 /* as a minor optimisation, we could unwind all stacks here */ 2253 /* as a minor optimisation, we could unwind all stacks here */
2013 /* but that puts extra pressure on pp_slf, and is not worth much */ 2254 /* but that puts extra pressure on pp_slf, and is not worth much */
2014 /*coro_unwind_stacks (aTHX);*/ 2255 /*coro_unwind_stacks (aTHX);*/
2256}
2257
2258static void
2259slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2260{
2261 HV *coro_hv = (HV *)SvRV (coro_current);
2262
2263 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2264 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2265}
2266
2267static void
2268slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2269{
2270 HV *coro_hv;
2271 struct coro *coro;
2272
2273 if (items <= 0)
2274 croak ("Coro::cancel called without coro object,");
2275
2276 coro = SvSTATE (arg [0]);
2277 coro_hv = coro->hv;
2278
2279 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2280
2281 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2282 {
2283 /* coro currently busy cancelling something, so just notify it */
2284 coro->slf_frame.data = (void *)coro;
2285
2286 frame->prepare = prepare_nop;
2287 frame->check = slf_check_nop;
2288 }
2289 else if (coro_hv == (HV *)SvRV (coro_current))
2290 {
2291 /* cancelling the current coro is allowed, and equals terminate */
2292 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2293 }
2294 else
2295 {
2296 struct coro *self = SvSTATE_current;
2297
2298 if (!self)
2299 croak ("Coro::cancel called outside of thread content,");
2300
2301 /* otherwise we cancel directly, purely for speed reasons
2302 * unfortunately, this requires some magic trickery, as
2303 * somebody else could cancel us, so we have to fight the cancellation.
2304 * this is ugly, and hopefully fully worth the extra speed.
2305 * besides, I can't get the slow-but-safe version working...
2306 */
2307 slf_frame.data = 0;
2308 self->flags |= CF_NOCANCEL;
2309 coro_state_destroy (aTHX_ coro);
2310 self->flags &= ~CF_NOCANCEL;
2311
2312 if (slf_frame.data)
2313 {
2314 /* while we were busy we have been cancelled, so terminate */
2315 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2316 }
2317 else
2318 {
2319 frame->prepare = prepare_nop;
2320 frame->check = slf_check_nop;
2321 }
2322 }
2323}
2324
2325static int
2326slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2327{
2328 frame->prepare = 0;
2329 coro_unwind_stacks (aTHX);
2330
2331 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2332
2333 return 1;
2334}
2335
2336static int
2337safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2338{
2339 if (coro->cctx)
2340 croak ("coro inside C callback, unable to cancel at this time, caught");
2341
2342 if (coro->flags & CF_NEW)
2343 {
2344 coro_set_status (aTHX_ coro, arg, items);
2345 coro_state_destroy (aTHX_ coro);
2346 }
2347 else
2348 {
2349 if (!coro->slf_frame.prepare)
2350 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2351
2352 slf_destroy (aTHX_ coro);
2353
2354 coro_set_status (aTHX_ coro, arg, items);
2355 coro->slf_frame.prepare = prepare_nop;
2356 coro->slf_frame.check = slf_check_safe_cancel;
2357
2358 api_ready (aTHX_ (SV *)coro->hv);
2359 }
2360
2361 return 1;
2015} 2362}
2016 2363
2017/*****************************************************************************/ 2364/*****************************************************************************/
2018/* async pool handler */ 2365/* async pool handler */
2019 2366
… …
2050slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2397slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2051{ 2398{
2052 HV *hv = (HV *)SvRV (coro_current); 2399 HV *hv = (HV *)SvRV (coro_current);
2053 struct coro *coro = SvSTATE_hv ((SV *)hv); 2400 struct coro *coro = SvSTATE_hv ((SV *)hv);
2054 2401
2055 if (expect_true (coro->saved_deffh)) 2402 if (ecb_expect_true (coro->saved_deffh))
2056 { 2403 {
2057 /* subsequent iteration */ 2404 /* subsequent iteration */
2058 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2405 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2059 coro->saved_deffh = 0; 2406 coro->saved_deffh = 0;
2060 2407
2061 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2408 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2062 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2409 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2063 { 2410 {
2064 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2411 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2065 coro->invoke_av = newAV (); 2412 return;
2066
2067 frame->prepare = prepare_nop;
2068 } 2413 }
2069 else 2414 else
2070 { 2415 {
2071 av_clear (GvAV (PL_defgv)); 2416 av_clear (GvAV (PL_defgv));
2072 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2417 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2097 2442
2098static void 2443static void
2099coro_rouse_callback (pTHX_ CV *cv) 2444coro_rouse_callback (pTHX_ CV *cv)
2100{ 2445{
2101 dXSARGS; 2446 dXSARGS;
2102 SV *data = (SV *)GENSUB_ARG; 2447 SV *data = (SV *)S_GENSUB_ARG;
2103 2448
2104 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2449 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2105 { 2450 {
2106 /* first call, set args */ 2451 /* first call, set args */
2107 SV *coro = SvRV (data); 2452 SV *coro = SvRV (data);
… …
2122 2467
2123static int 2468static int
2124slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2469slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2125{ 2470{
2126 SV *data = (SV *)frame->data; 2471 SV *data = (SV *)frame->data;
2127 2472
2128 if (CORO_THROW) 2473 if (CORO_THROW)
2129 return 0; 2474 return 0;
2130 2475
2131 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2476 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2132 return 1; 2477 return 1;
… …
2168 cb = sv_2mortal (coro->rouse_cb); 2513 cb = sv_2mortal (coro->rouse_cb);
2169 coro->rouse_cb = 0; 2514 coro->rouse_cb = 0;
2170 } 2515 }
2171 2516
2172 if (!SvROK (cb) 2517 if (!SvROK (cb)
2173 || SvTYPE (SvRV (cb)) != SVt_PVCV 2518 || SvTYPE (SvRV (cb)) != SVt_PVCV
2174 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2519 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2175 croak ("Coro::rouse_wait called with illegal callback argument,"); 2520 croak ("Coro::rouse_wait called with illegal callback argument,");
2176 2521
2177 { 2522 {
2178 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2523 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2179 SV *data = (SV *)GENSUB_ARG; 2524 SV *data = (SV *)S_GENSUB_ARG;
2180 2525
2181 frame->data = (void *)data; 2526 frame->data = (void *)data;
2182 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2527 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2183 frame->check = slf_check_rouse_wait; 2528 frame->check = slf_check_rouse_wait;
2184 } 2529 }
… …
2188coro_new_rouse_cb (pTHX) 2533coro_new_rouse_cb (pTHX)
2189{ 2534{
2190 HV *hv = (HV *)SvRV (coro_current); 2535 HV *hv = (HV *)SvRV (coro_current);
2191 struct coro *coro = SvSTATE_hv (hv); 2536 struct coro *coro = SvSTATE_hv (hv);
2192 SV *data = newRV_inc ((SV *)hv); 2537 SV *data = newRV_inc ((SV *)hv);
2193 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2538 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2194 2539
2195 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2540 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2196 SvREFCNT_dec (data); /* magicext increases the refcount */ 2541 SvREFCNT_dec (data); /* magicext increases the refcount */
2197 2542
2198 SvREFCNT_dec (coro->rouse_cb); 2543 SvREFCNT_dec (coro->rouse_cb);
… …
2295static void 2640static void
2296slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2641slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2297{ 2642{
2298 frame->prepare = prepare_cede_notself; 2643 frame->prepare = prepare_cede_notself;
2299 frame->check = slf_check_nop; 2644 frame->check = slf_check_nop;
2645}
2646
2647/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2648static void
2649slf_destroy (pTHX_ struct coro *coro)
2650{
2651 struct CoroSLF frame = coro->slf_frame;
2652
2653 /*
2654 * The on_destroy below most likely is from an SLF call.
2655 * Since by definition the SLF call will not finish when we destroy
2656 * the coro, we will have to force-finish it here, otherwise
2657 * cleanup functions cannot call SLF functions.
2658 */
2659 coro->slf_frame.prepare = 0;
2660
2661 /* this callback is reserved for slf functions needing to do cleanup */
2662 if (frame.destroy && frame.prepare && !PL_dirty)
2663 frame.destroy (aTHX_ &frame);
2300} 2664}
2301 2665
2302/* 2666/*
2303 * these not obviously related functions are all rolled into one 2667 * these not obviously related functions are all rolled into one
2304 * function to increase chances that they all will call transfer with the same 2668 * function to increase chances that they all will call transfer with the same
… …
2311 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2675 I32 checkmark; /* mark SP to see how many elements check has pushed */
2312 2676
2313 /* set up the slf frame, unless it has already been set-up */ 2677 /* set up the slf frame, unless it has already been set-up */
2314 /* the latter happens when a new coro has been started */ 2678 /* the latter happens when a new coro has been started */
2315 /* or when a new cctx was attached to an existing coroutine */ 2679 /* or when a new cctx was attached to an existing coroutine */
2316 if (expect_true (!slf_frame.prepare)) 2680 if (ecb_expect_true (!slf_frame.prepare))
2317 { 2681 {
2318 /* first iteration */ 2682 /* first iteration */
2319 dSP; 2683 dSP;
2320 SV **arg = PL_stack_base + TOPMARK + 1; 2684 SV **arg = PL_stack_base + TOPMARK + 1;
2321 int items = SP - arg; /* args without function object */ 2685 int items = SP - arg; /* args without function object */
… …
2362 while (slf_frame.check (aTHX_ &slf_frame)); 2726 while (slf_frame.check (aTHX_ &slf_frame));
2363 2727
2364 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2728 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2365 2729
2366 /* exception handling */ 2730 /* exception handling */
2367 if (expect_false (CORO_THROW)) 2731 if (ecb_expect_false (CORO_THROW))
2368 { 2732 {
2369 SV *exception = sv_2mortal (CORO_THROW); 2733 SV *exception = sv_2mortal (CORO_THROW);
2370 2734
2371 CORO_THROW = 0; 2735 CORO_THROW = 0;
2372 sv_setsv (ERRSV, exception); 2736 sv_setsv (ERRSV, exception);
2373 croak (0); 2737 croak (0);
2374 } 2738 }
2375 2739
2376 /* return value handling - mostly like entersub */ 2740 /* return value handling - mostly like entersub */
2377 /* make sure we put something on the stack in scalar context */ 2741 /* make sure we put something on the stack in scalar context */
2378 if (GIMME_V == G_SCALAR) 2742 if (GIMME_V == G_SCALAR
2743 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2379 { 2744 {
2380 dSP; 2745 dSP;
2381 SV **bot = PL_stack_base + checkmark; 2746 SV **bot = PL_stack_base + checkmark;
2382 2747
2383 if (sp == bot) /* too few, push undef */ 2748 if (sp == bot) /* too few, push undef */
2384 bot [1] = &PL_sv_undef; 2749 bot [1] = &PL_sv_undef;
2385 else if (sp != bot + 1) /* too many, take last one */ 2750 else /* too many, take last one */
2386 bot [1] = *sp; 2751 bot [1] = *sp;
2387 2752
2388 SP = bot + 1; 2753 SP = bot + 1;
2389 2754
2390 PUTBACK; 2755 PUTBACK;
… …
2423 if (PL_op->op_flags & OPf_STACKED) 2788 if (PL_op->op_flags & OPf_STACKED)
2424 { 2789 {
2425 if (items > slf_arga) 2790 if (items > slf_arga)
2426 { 2791 {
2427 slf_arga = items; 2792 slf_arga = items;
2428 free (slf_argv); 2793 Safefree (slf_argv);
2429 slf_argv = malloc (slf_arga * sizeof (SV *)); 2794 New (0, slf_argv, slf_arga, SV *);
2430 } 2795 }
2431 2796
2432 slf_argc = items; 2797 slf_argc = items;
2433 2798
2434 for (i = 0; i < items; ++i) 2799 for (i = 0; i < items; ++i)
… …
2488{ 2853{
2489 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); 2854 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2490 on_enterleave_call (aTHX_ sv_2mortal (cb)); 2855 on_enterleave_call (aTHX_ sv_2mortal (cb));
2491} 2856}
2492 2857
2858static void
2859enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
2860{
2861 if (!hook)
2862 return;
2863
2864 if (!*avp)
2865 {
2866 *avp = newAV ();
2867 AvREAL_off (*avp);
2868 }
2869
2870 av_push (*avp, (SV *)hook);
2871 av_push (*avp, (SV *)arg);
2872}
2873
2874static void
2875enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
2876{
2877 AV *av = *avp;
2878 int i;
2879
2880 if (!av)
2881 return;
2882
2883 for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
2884 if (AvARRAY (av)[i] == (SV *)hook)
2885 {
2886 if (execute)
2887 hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
2888
2889 memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
2890 av_pop (av);
2891 av_pop (av);
2892 break;
2893 }
2894
2895 if (AvFILLp (av) >= 0)
2896 {
2897 *avp = 0;
2898 SvREFCNT_dec_NN (av);
2899 }
2900}
2901
2902static void
2903api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2904{
2905 struct coro *coro = SvSTATE (coro_sv);
2906
2907 if (SvSTATE_current == coro)
2908 if (enter)
2909 enter (aTHX_ enter_arg);
2910
2911 enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
2912 enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
2913}
2914
2915static void
2916api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
2917{
2918 struct coro *coro = SvSTATE (coro_sv);
2919
2920 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2921 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
2922}
2923
2924static void
2925savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
2926{
2927 struct coro *coro = SvSTATE_current;
2928
2929 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2930}
2931
2932static void
2933savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
2934{
2935 struct coro *coro = SvSTATE_current;
2936
2937 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
2938}
2939
2940static void
2941api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2942{
2943 api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
2944
2945 /* this ought to be much cheaper than malloc + a single destructor call */
2946 if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
2947 if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2948}
2949
2493/*****************************************************************************/ 2950/*****************************************************************************/
2494/* PerlIO::cede */ 2951/* PerlIO::cede */
2495 2952
2496typedef struct 2953typedef struct
2497{ 2954{
2498 PerlIOBuf base; 2955 PerlIOBuf base;
2499 NV next, every; 2956 NV next, every;
2500} PerlIOCede; 2957} PerlIOCede;
2501 2958
2502static IV 2959static IV ecb_cold
2503PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2960PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2504{ 2961{
2505 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2962 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2506 2963
2507 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2964 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2508 self->next = nvtime () + self->every; 2965 self->next = nvtime () + self->every;
2509 2966
2510 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2967 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2511} 2968}
2512 2969
2513static SV * 2970static SV * ecb_cold
2514PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2971PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2515{ 2972{
2516 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2973 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2517 2974
2518 return newSVnv (self->every); 2975 return newSVnv (self->every);
… …
2625 XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); 3082 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2626 PUTBACK; 3083 PUTBACK;
2627 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); 3084 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2628 } 3085 }
2629 3086
2630 SvREFCNT_dec (cb); 3087 SvREFCNT_dec_NN (cb);
2631 } 3088 }
2632} 3089}
2633 3090
2634static void 3091static void
2635coro_semaphore_on_destroy (pTHX_ struct coro *coro) 3092coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2636{ 3093{
2637 /* call $sem->adjust (0) to possibly wake up some other waiters */ 3094 /* call $sem->adjust (0) to possibly wake up some other waiters */
2638 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 3095 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2639} 3096}
2640 3097
2641static int 3098static int
2642slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 3099slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2643{ 3100{
2644 AV *av = (AV *)frame->data; 3101 AV *av = (AV *)frame->data;
2645 SV *count_sv = AvARRAY (av)[0]; 3102 SV *count_sv = AvARRAY (av)[0];
3103 SV *coro_hv = SvRV (coro_current);
3104
3105 frame->destroy = 0;
2646 3106
2647 /* if we are about to throw, don't actually acquire the lock, just throw */ 3107 /* if we are about to throw, don't actually acquire the lock, just throw */
2648 if (CORO_THROW) 3108 if (ecb_expect_false (CORO_THROW))
3109 {
3110 /* we still might be responsible for the semaphore, so wake up others */
3111 coro_semaphore_adjust (aTHX_ av, 0);
3112
2649 return 0; 3113 return 0;
3114 }
2650 else if (SvIVX (count_sv) > 0) 3115 else if (SvIVX (count_sv) > 0)
2651 { 3116 {
2652 SvSTATE_current->on_destroy = 0;
2653
2654 if (acquire) 3117 if (acquire)
2655 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3118 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2656 else 3119 else
2657 coro_semaphore_adjust (aTHX_ av, 0); 3120 coro_semaphore_adjust (aTHX_ av, 0);
2658 3121
… …
2662 { 3125 {
2663 int i; 3126 int i;
2664 /* if we were woken up but can't down, we look through the whole */ 3127 /* if we were woken up but can't down, we look through the whole */
2665 /* waiters list and only add us if we aren't in there already */ 3128 /* waiters list and only add us if we aren't in there already */
2666 /* this avoids some degenerate memory usage cases */ 3129 /* this avoids some degenerate memory usage cases */
2667 3130 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2668 for (i = 1; i <= AvFILLp (av); ++i)
2669 if (AvARRAY (av)[i] == SvRV (coro_current)) 3131 if (AvARRAY (av)[i] == coro_hv)
2670 return 1; 3132 return 1;
2671 3133
2672 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3134 av_push (av, SvREFCNT_inc (coro_hv));
2673 return 1; 3135 return 1;
2674 } 3136 }
2675} 3137}
2676 3138
2677static int 3139static int
… …
2700 { 3162 {
2701 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3163 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2702 3164
2703 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3165 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2704 frame->prepare = prepare_schedule; 3166 frame->prepare = prepare_schedule;
2705
2706 /* to avoid race conditions when a woken-up coro gets terminated */ 3167 /* to avoid race conditions when a woken-up coro gets terminated */
2707 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3168 /* we arrange for a temporary on_destroy that calls adjust (0) */
2708 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3169 frame->destroy = coro_semaphore_destroy;
2709 } 3170 }
2710} 3171}
2711 3172
2712static void 3173static void
2713slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3174slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2721{ 3182{
2722 if (items >= 2) 3183 if (items >= 2)
2723 { 3184 {
2724 /* callback form */ 3185 /* callback form */
2725 AV *av = (AV *)SvRV (arg [0]); 3186 AV *av = (AV *)SvRV (arg [0]);
2726 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3187 SV *cb_cv = s_get_cv_croak (arg [1]);
2727 3188
2728 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3189 av_push (av, SvREFCNT_inc_NN (cb_cv));
2729 3190
2730 if (SvIVX (AvARRAY (av)[0]) > 0) 3191 if (SvIVX (AvARRAY (av)[0]) > 0)
2731 coro_semaphore_adjust (aTHX_ av, 0); 3192 coro_semaphore_adjust (aTHX_ av, 0);
… …
2771 { 3232 {
2772 api_ready (aTHX_ cb); 3233 api_ready (aTHX_ cb);
2773 sv_setiv (cb, 0); /* signal waiter */ 3234 sv_setiv (cb, 0); /* signal waiter */
2774 } 3235 }
2775 3236
2776 SvREFCNT_dec (cb); 3237 SvREFCNT_dec_NN (cb);
2777 3238
2778 --count; 3239 --count;
2779 } 3240 }
2780} 3241}
2781 3242
… …
2791{ 3252{
2792 AV *av = (AV *)SvRV (arg [0]); 3253 AV *av = (AV *)SvRV (arg [0]);
2793 3254
2794 if (items >= 2) 3255 if (items >= 2)
2795 { 3256 {
2796 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3257 SV *cb_cv = s_get_cv_croak (arg [1]);
2797 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3258 av_push (av, SvREFCNT_inc_NN (cb_cv));
2798 3259
2799 if (SvIVX (AvARRAY (av)[0])) 3260 if (SvIVX (AvARRAY (av)[0]))
2800 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3261 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2801 3262
2802 frame->prepare = prepare_nop; 3263 frame->prepare = prepare_nop;
2803 frame->check = slf_check_nop; 3264 frame->check = slf_check_nop;
2804 } 3265 }
2805 else if (SvIVX (AvARRAY (av)[0])) 3266 else if (SvIVX (AvARRAY (av)[0]))
… …
2836 3297
2837static void 3298static void
2838coro_aio_callback (pTHX_ CV *cv) 3299coro_aio_callback (pTHX_ CV *cv)
2839{ 3300{
2840 dXSARGS; 3301 dXSARGS;
2841 AV *state = (AV *)GENSUB_ARG; 3302 AV *state = (AV *)S_GENSUB_ARG;
2842 SV *coro = av_pop (state); 3303 SV *coro = av_pop (state);
2843 SV *data_sv = newSV (sizeof (struct io_state)); 3304 SV *data_sv = newSV (sizeof (struct io_state));
2844 3305
2845 av_extend (state, items - 1); 3306 av_extend (state, items - 1);
2846 3307
… …
2866 } 3327 }
2867 3328
2868 av_push (state, data_sv); 3329 av_push (state, data_sv);
2869 3330
2870 api_ready (aTHX_ coro); 3331 api_ready (aTHX_ coro);
2871 SvREFCNT_dec (coro); 3332 SvREFCNT_dec_NN (coro);
2872 SvREFCNT_dec ((AV *)state); 3333 SvREFCNT_dec_NN ((AV *)state);
2873} 3334}
2874 3335
2875static int 3336static int
2876slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3337slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2877{ 3338{
… …
2882 /* it quickly returns */ 3343 /* it quickly returns */
2883 if (CORO_THROW) 3344 if (CORO_THROW)
2884 return 0; 3345 return 0;
2885 3346
2886 /* one element that is an RV? repeat! */ 3347 /* one element that is an RV? repeat! */
2887 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3348 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2888 return 1; 3349 return 1;
2889 3350
2890 /* restore status */ 3351 /* restore status */
2891 { 3352 {
2892 SV *data_sv = av_pop (state); 3353 SV *data_sv = av_pop (state);
… …
2895 errno = data->errorno; 3356 errno = data->errorno;
2896 PL_laststype = data->laststype; 3357 PL_laststype = data->laststype;
2897 PL_laststatval = data->laststatval; 3358 PL_laststatval = data->laststatval;
2898 PL_statcache = data->statcache; 3359 PL_statcache = data->statcache;
2899 3360
2900 SvREFCNT_dec (data_sv); 3361 SvREFCNT_dec_NN (data_sv);
2901 } 3362 }
2902 3363
2903 /* push result values */ 3364 /* push result values */
2904 { 3365 {
2905 dSP; 3366 dSP;
… …
2931 dSP; 3392 dSP;
2932 3393
2933 static SV *prio_cv; 3394 static SV *prio_cv;
2934 static SV *prio_sv; 3395 static SV *prio_sv;
2935 3396
2936 if (expect_false (!prio_cv)) 3397 if (ecb_expect_false (!prio_cv))
2937 { 3398 {
2938 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3399 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2939 prio_sv = newSViv (0); 3400 prio_sv = newSViv (0);
2940 } 3401 }
2941 3402
… …
2960 3421
2961 for (i = 0; i < items; ++i) 3422 for (i = 0; i < items; ++i)
2962 PUSHs (arg [i]); 3423 PUSHs (arg [i]);
2963 3424
2964 /* now push the callback closure */ 3425 /* now push the callback closure */
2965 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3426 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2966 3427
2967 /* now call the AIO function - we assume our request is uncancelable */ 3428 /* now call the AIO function - we assume our request is uncancelable */
2968 PUTBACK; 3429 PUTBACK;
2969 call_sv ((SV *)req, G_VOID | G_DISCARD); 3430 call_sv ((SV *)req, G_VOID | G_DISCARD);
2970 } 3431 }
2971 3432
2972 /* now that the requets is going, we loop toll we have a result */ 3433 /* now that the request is going, we loop till we have a result */
2973 frame->data = (void *)state; 3434 frame->data = (void *)state;
2974 frame->prepare = prepare_schedule; 3435 frame->prepare = prepare_schedule;
2975 frame->check = slf_check_aio_req; 3436 frame->check = slf_check_aio_req;
2976} 3437}
2977 3438
… …
2989 3450
2990#if CORO_CLONE 3451#if CORO_CLONE
2991# include "clone.c" 3452# include "clone.c"
2992#endif 3453#endif
2993 3454
3455/*****************************************************************************/
3456
3457static SV *
3458coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3459{
3460 SV *coro_sv;
3461 struct coro *coro;
3462 MAGIC *mg;
3463 HV *hv;
3464 SV *cb;
3465 int i;
3466
3467 if (argc > 0)
3468 {
3469 cb = s_get_cv_croak (argv [0]);
3470
3471 if (!is_coro)
3472 {
3473 if (CvISXSUB (cb))
3474 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3475
3476 if (!CvROOT (cb))
3477 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3478 }
3479 }
3480
3481 Newz (0, coro, 1, struct coro);
3482 coro->args = newAV ();
3483 coro->flags = CF_NEW;
3484
3485 if (coro_first) coro_first->prev = coro;
3486 coro->next = coro_first;
3487 coro_first = coro;
3488
3489 coro->hv = hv = newHV ();
3490 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3491 mg->mg_flags |= MGf_DUP;
3492 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3493
3494 if (argc > 0)
3495 {
3496 av_extend (coro->args, argc + is_coro - 1);
3497
3498 if (is_coro)
3499 {
3500 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3501 cb = (SV *)cv_coro_run;
3502 }
3503
3504 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3505
3506 for (i = 1; i < argc; i++)
3507 av_push (coro->args, newSVsv (argv [i]));
3508 }
3509
3510 return coro_sv;
3511}
3512
3513#ifndef __cplusplus
3514ecb_cold XS(boot_Coro__State);
3515#endif
3516
3517#if CORO_JIT
3518
3519static void ecb_noinline ecb_cold
3520pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3521{
3522 dSP;
3523 AV *av = newAV ();
3524
3525 av_store (av, 3, newSVuv (d));
3526 av_store (av, 2, newSVuv (c));
3527 av_store (av, 1, newSVuv (b));
3528 av_store (av, 0, newSVuv (a));
3529
3530 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3531
3532 PUTBACK;
3533}
3534
3535static void ecb_noinline ecb_cold
3536jit_init (pTHX)
3537{
3538 dSP;
3539 SV *load, *save;
3540 char *map_base;
3541 char *load_ptr, *save_ptr;
3542 STRLEN load_len, save_len, map_len;
3543 int count;
3544
3545 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3546
3547 PUSHMARK (SP);
3548 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3549 #include "state.h"
3550 count = call_pv ("Coro::State::_jit", G_ARRAY);
3551 SPAGAIN;
3552
3553 save = POPs; save_ptr = SvPVbyte (save, save_len);
3554 load = POPs; load_ptr = SvPVbyte (load, load_len);
3555
3556 map_len = load_len + save_len + 16;
3557
3558 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3559
3560 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3561
3562 load_perl_slots = (load_save_perl_slots_type)map_base;
3563 memcpy (map_base, load_ptr, load_len);
3564
3565 map_base += (load_len + 15) & ~15;
3566
3567 save_perl_slots = (load_save_perl_slots_type)map_base;
3568 memcpy (map_base, save_ptr, save_len);
3569
3570 /* we are good citizens and try to make the page read-only, so the evil evil */
3571 /* hackers might have it a bit more difficult */
3572 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3573
3574 PUTBACK;
3575 eval_pv ("undef &Coro::State::_jit", 1);
3576}
3577
3578#endif
3579
2994MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3580MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2995 3581
2996PROTOTYPES: DISABLE 3582PROTOTYPES: DISABLE
2997 3583
2998BOOT: 3584BOOT:
2999{ 3585{
3586#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3587#include "state.h"
3000#ifdef USE_ITHREADS 3588#ifdef USE_ITHREADS
3001# if CORO_PTHREAD 3589# if CORO_PTHREAD
3002 coro_thx = PERL_GET_CONTEXT; 3590 coro_thx = PERL_GET_CONTEXT;
3003# endif 3591# endif
3004#endif 3592#endif
3005 BOOT_PAGESIZE; 3593 /* perl defines these to check for existance first, but why it doesn't */
3594 /* just create them one at init time is not clear to me, except for */
3595 /* programs trying to delete them, but... */
3596 /* anyway, we declare this as invalid and make sure they are initialised here */
3597 DEFSV;
3598 ERRSV;
3006 3599
3007 cctx_current = cctx_new_empty (); 3600 cctx_current = cctx_new_empty ();
3008 3601
3009 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3602 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
3010 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3603 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
3050 coroapi.prepare_nop = prepare_nop; 3643 coroapi.prepare_nop = prepare_nop;
3051 coroapi.prepare_schedule = prepare_schedule; 3644 coroapi.prepare_schedule = prepare_schedule;
3052 coroapi.prepare_cede = prepare_cede; 3645 coroapi.prepare_cede = prepare_cede;
3053 coroapi.prepare_cede_notself = prepare_cede_notself; 3646 coroapi.prepare_cede_notself = prepare_cede_notself;
3054 3647
3055 { 3648 time_init (aTHX);
3056 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3057
3058 if (!svp) croak ("Time::HiRes is required");
3059 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3060
3061 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3062
3063 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3064 u2time = INT2PTR (double (*)(), SvIV (*svp));
3065 }
3066 3649
3067 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3650 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3651#if CORO_JIT
3652 PUTBACK;
3653 jit_init (aTHX);
3654 SPAGAIN;
3655#endif
3068} 3656}
3069 3657
3070SV * 3658SV *
3071new (char *klass, ...) 3659new (SV *klass, ...)
3072 ALIAS: 3660 ALIAS:
3073 Coro::new = 1 3661 Coro::new = 1
3074 CODE: 3662 CODE:
3075{ 3663 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
3076 struct coro *coro; 3664 OUTPUT:
3077 MAGIC *mg;
3078 HV *hv;
3079 CV *cb;
3080 int i;
3081
3082 if (items > 1)
3083 {
3084 cb = coro_sv_2cv (aTHX_ ST (1));
3085
3086 if (!ix)
3087 {
3088 if (CvISXSUB (cb))
3089 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3090
3091 if (!CvROOT (cb))
3092 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3093 }
3094 }
3095
3096 Newz (0, coro, 1, struct coro);
3097 coro->args = newAV ();
3098 coro->flags = CF_NEW;
3099
3100 if (coro_first) coro_first->prev = coro;
3101 coro->next = coro_first;
3102 coro_first = coro;
3103
3104 coro->hv = hv = newHV ();
3105 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3106 mg->mg_flags |= MGf_DUP;
3107 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3108
3109 if (items > 1)
3110 {
3111 av_extend (coro->args, items - 1 + ix - 1);
3112
3113 if (ix)
3114 {
3115 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3116 cb = cv_coro_run;
3117 }
3118
3119 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3120
3121 for (i = 2; i < items; i++)
3122 av_push (coro->args, newSVsv (ST (i)));
3123 }
3124}
3125 OUTPUT:
3126 RETVAL 3665 RETVAL
3127 3666
3128void 3667void
3129transfer (...) 3668transfer (...)
3130 PROTOTYPE: $$ 3669 PROTOTYPE: $$
3131 CODE: 3670 CODE:
3132 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3671 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3133
3134bool
3135_destroy (SV *coro_sv)
3136 CODE:
3137 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3138 OUTPUT:
3139 RETVAL
3140
3141void
3142_exit (int code)
3143 PROTOTYPE: $
3144 CODE:
3145 _exit (code);
3146 3672
3147SV * 3673SV *
3148clone (Coro::State coro) 3674clone (Coro::State coro)
3149 CODE: 3675 CODE:
3150{ 3676{
… …
3205void 3731void
3206list () 3732list ()
3207 PROTOTYPE: 3733 PROTOTYPE:
3208 PPCODE: 3734 PPCODE:
3209{ 3735{
3210 struct coro *coro; 3736 struct coro *coro;
3211 for (coro = coro_first; coro; coro = coro->next) 3737 for (coro = coro_first; coro; coro = coro->next)
3212 if (coro->hv) 3738 if (coro->hv)
3213 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3739 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3214} 3740}
3215 3741
… …
3220 CODE: 3746 CODE:
3221{ 3747{
3222 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3748 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3223 { 3749 {
3224 struct coro *current = SvSTATE_current; 3750 struct coro *current = SvSTATE_current;
3751 struct CoroSLF slf_save;
3225 3752
3226 if (current != coro) 3753 if (current != coro)
3227 { 3754 {
3228 PUTBACK; 3755 PUTBACK;
3229 save_perl (aTHX_ current); 3756 save_perl (aTHX_ current);
3230 load_perl (aTHX_ coro); 3757 load_perl (aTHX_ coro);
3758 /* the coro is most likely in an active SLF call.
3759 * while not strictly required (the code we execute is
3760 * not allowed to call any SLF functions), it's cleaner
3761 * to reinitialise the slf_frame and restore it later.
3762 * This might one day allow us to actually do SLF calls
3763 * from code executed here.
3764 */
3765 slf_save = slf_frame;
3766 slf_frame.prepare = 0;
3231 SPAGAIN; 3767 SPAGAIN;
3232 } 3768 }
3233 3769
3234 PUSHSTACK; 3770 PUSHSTACK;
3235 3771
… …
3245 SPAGAIN; 3781 SPAGAIN;
3246 3782
3247 if (current != coro) 3783 if (current != coro)
3248 { 3784 {
3249 PUTBACK; 3785 PUTBACK;
3786 slf_frame = slf_save;
3250 save_perl (aTHX_ coro); 3787 save_perl (aTHX_ coro);
3251 load_perl (aTHX_ current); 3788 load_perl (aTHX_ current);
3252 SPAGAIN; 3789 SPAGAIN;
3253 } 3790 }
3254 } 3791 }
… …
3259 PROTOTYPE: $ 3796 PROTOTYPE: $
3260 ALIAS: 3797 ALIAS:
3261 is_ready = CF_READY 3798 is_ready = CF_READY
3262 is_running = CF_RUNNING 3799 is_running = CF_RUNNING
3263 is_new = CF_NEW 3800 is_new = CF_NEW
3264 is_destroyed = CF_DESTROYED 3801 is_destroyed = CF_ZOMBIE
3802 is_zombie = CF_ZOMBIE
3265 is_suspended = CF_SUSPENDED 3803 is_suspended = CF_SUSPENDED
3266 CODE: 3804 CODE:
3267 RETVAL = boolSV (coro->flags & ix); 3805 RETVAL = boolSV (coro->flags & ix);
3268 OUTPUT: 3806 OUTPUT:
3269 RETVAL 3807 RETVAL
3270 3808
3271void 3809void
3272throw (Coro::State self, SV *throw = &PL_sv_undef) 3810throw (SV *self, SV *exception = &PL_sv_undef)
3273 PROTOTYPE: $;$ 3811 PROTOTYPE: $;$
3274 CODE: 3812 CODE:
3275{ 3813{
3814 struct coro *coro = SvSTATE (self);
3276 struct coro *current = SvSTATE_current; 3815 struct coro *current = SvSTATE_current;
3277 SV **throwp = self == current ? &CORO_THROW : &self->except; 3816 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3278 SvREFCNT_dec (*throwp); 3817 SvREFCNT_dec (*exceptionp);
3279 SvGETMAGIC (throw); 3818 SvGETMAGIC (exception);
3280 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3819 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3820
3821 api_ready (aTHX_ self);
3281} 3822}
3282 3823
3283void 3824void
3284api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3825api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3285 PROTOTYPE: $;$ 3826 PROTOTYPE: $;$
… …
3340 3881
3341void 3882void
3342cancel (Coro::State self) 3883cancel (Coro::State self)
3343 CODE: 3884 CODE:
3344 coro_state_destroy (aTHX_ self); 3885 coro_state_destroy (aTHX_ self);
3345 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3346
3347 3886
3348SV * 3887SV *
3349enable_times (int enabled = enable_times) 3888enable_times (int enabled = enable_times)
3350 CODE: 3889 CODE:
3351{ 3890{
… …
3364 3903
3365void 3904void
3366times (Coro::State self) 3905times (Coro::State self)
3367 PPCODE: 3906 PPCODE:
3368{ 3907{
3369 struct coro *current = SvSTATE (coro_current); 3908 struct coro *current = SvSTATE (coro_current);
3370 3909
3371 if (expect_false (current == self)) 3910 if (ecb_expect_false (current == self))
3372 { 3911 {
3373 coro_times_update (); 3912 coro_times_update ();
3374 coro_times_add (SvSTATE (coro_current)); 3913 coro_times_add (SvSTATE (coro_current));
3375 } 3914 }
3376 3915
3377 EXTEND (SP, 2); 3916 EXTEND (SP, 2);
3378 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3917 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3379 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3918 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3380 3919
3381 if (expect_false (current == self)) 3920 if (ecb_expect_false (current == self))
3382 coro_times_sub (SvSTATE (coro_current)); 3921 coro_times_sub (SvSTATE (coro_current));
3383} 3922}
3384 3923
3924void
3925swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3926 CODE:
3927{
3928 struct coro *current = SvSTATE_current;
3929
3930 if (current == coro)
3931 SWAP_SVS (current);
3932
3933 if (!coro->swap_sv)
3934 coro->swap_sv = newAV ();
3935
3936 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3937 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3938
3939 if (current == coro)
3940 SWAP_SVS (current);
3941}
3942
3943
3385MODULE = Coro::State PACKAGE = Coro 3944MODULE = Coro::State PACKAGE = Coro
3386 3945
3387BOOT: 3946BOOT:
3388{ 3947{
3948 if (SVt_LAST > 32)
3949 croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
3950
3389 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3951 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3390 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3952 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3391 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3953 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3392 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3393 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3954 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3394 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3955 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3395 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3956 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3396 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3957 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3397 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3958 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3398 3959
3399 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3960 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3400 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3961 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3401 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3962 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3402 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3963 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3403 3964
3404 coro_stash = gv_stashpv ("Coro", TRUE); 3965 coro_stash = gv_stashpv ("Coro", TRUE);
3405 3966
3406 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3967 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3407 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3968 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
… …
3420 coroapi.ready = api_ready; 3981 coroapi.ready = api_ready;
3421 coroapi.is_ready = api_is_ready; 3982 coroapi.is_ready = api_is_ready;
3422 coroapi.nready = coro_nready; 3983 coroapi.nready = coro_nready;
3423 coroapi.current = coro_current; 3984 coroapi.current = coro_current;
3424 3985
3986 coroapi.enterleave_hook = api_enterleave_hook;
3987 coroapi.enterleave_unhook = api_enterleave_unhook;
3988 coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
3989
3425 /*GCoroAPI = &coroapi;*/ 3990 /*GCoroAPI = &coroapi;*/
3426 sv_setiv (sv, (IV)&coroapi); 3991 sv_setiv (sv, (IV)&coroapi);
3427 SvREADONLY_on (sv); 3992 SvREADONLY_on (sv);
3428 } 3993 }
3429} 3994}
3430 3995
3996SV *
3997async (...)
3998 PROTOTYPE: &@
3999 CODE:
4000 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
4001 api_ready (aTHX_ RETVAL);
4002 OUTPUT:
4003 RETVAL
4004
4005void
4006_destroy (Coro::State coro)
4007 CODE:
4008 /* used by the manager thread */
4009 coro_state_destroy (aTHX_ coro);
4010
4011void
4012on_destroy (Coro::State coro, SV *cb)
4013 CODE:
4014 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
4015
4016void
4017join (...)
4018 CODE:
4019 CORO_EXECUTE_SLF_XS (slf_init_join);
4020
3431void 4021void
3432terminate (...) 4022terminate (...)
3433 CODE: 4023 CODE:
3434 CORO_EXECUTE_SLF_XS (slf_init_terminate); 4024 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3435 4025
3436void 4026void
4027cancel (...)
4028 CODE:
4029 CORO_EXECUTE_SLF_XS (slf_init_cancel);
4030
4031int
4032safe_cancel (Coro::State self, ...)
4033 C_ARGS: aTHX_ self, &ST (1), items - 1
4034
4035void
3437schedule (...) 4036schedule (...)
3438 CODE: 4037 CODE:
3439 CORO_EXECUTE_SLF_XS (slf_init_schedule); 4038 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3440 4039
3441void 4040void
… …
3460 4059
3461void 4060void
3462_set_current (SV *current) 4061_set_current (SV *current)
3463 PROTOTYPE: $ 4062 PROTOTYPE: $
3464 CODE: 4063 CODE:
3465 SvREFCNT_dec (SvRV (coro_current)); 4064 SvREFCNT_dec_NN (SvRV (coro_current));
3466 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 4065 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3467 4066
3468void 4067void
3469_set_readyhook (SV *hook) 4068_set_readyhook (SV *hook)
3470 PROTOTYPE: $ 4069 PROTOTYPE: $
3471 CODE: 4070 CODE:
3472 SvREFCNT_dec (coro_readyhook); 4071 SvREFCNT_dec (coro_readyhook);
3473 SvGETMAGIC (hook); 4072 SvGETMAGIC (hook);
4073 if (SvOK (hook))
4074 {
3474 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 4075 coro_readyhook = newSVsv (hook);
4076 CORO_READYHOOK = invoke_sv_ready_hook_helper;
4077 }
4078 else
4079 {
4080 coro_readyhook = 0;
4081 CORO_READYHOOK = 0;
4082 }
3475 4083
3476int 4084int
3477prio (Coro::State coro, int newprio = 0) 4085prio (Coro::State coro, int newprio = 0)
3478 PROTOTYPE: $;$ 4086 PROTOTYPE: $;$
3479 ALIAS: 4087 ALIAS:
… …
3543 for (i = 1; i < items; ++i) 4151 for (i = 1; i < items; ++i)
3544 av_push (av, SvREFCNT_inc_NN (ST (i))); 4152 av_push (av, SvREFCNT_inc_NN (ST (i)));
3545 4153
3546 if ((SV *)hv == &PL_sv_undef) 4154 if ((SV *)hv == &PL_sv_undef)
3547 { 4155 {
3548 PUSHMARK (SP); 4156 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3549 EXTEND (SP, 2);
3550 PUSHs (sv_Coro);
3551 PUSHs ((SV *)cv_pool_handler);
3552 PUTBACK;
3553 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3554 SPAGAIN;
3555
3556 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4157 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4158 SvREFCNT_dec_NN (sv);
3557 } 4159 }
3558 4160
3559 { 4161 {
3560 struct coro *coro = SvSTATE_hv (hv); 4162 struct coro *coro = SvSTATE_hv (hv);
3561 4163
… …
3568 api_ready (aTHX_ (SV *)hv); 4170 api_ready (aTHX_ (SV *)hv);
3569 4171
3570 if (GIMME_V != G_VOID) 4172 if (GIMME_V != G_VOID)
3571 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); 4173 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3572 else 4174 else
3573 SvREFCNT_dec (hv); 4175 SvREFCNT_dec_NN (hv);
3574} 4176}
3575 4177
3576SV * 4178SV *
3577rouse_cb () 4179rouse_cb ()
3578 PROTOTYPE: 4180 PROTOTYPE:
… …
3593 on_leave = 1 4195 on_leave = 1
3594 PROTOTYPE: & 4196 PROTOTYPE: &
3595 CODE: 4197 CODE:
3596{ 4198{
3597 struct coro *coro = SvSTATE_current; 4199 struct coro *coro = SvSTATE_current;
3598 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4200 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3599 4201
3600 block = (SV *)coro_sv_2cv (aTHX_ block); 4202 block = s_get_cv_croak (block);
3601 4203
3602 if (!*avp) 4204 if (!*avp)
3603 *avp = newAV (); 4205 *avp = newAV ();
3604 4206
3605 av_push (*avp, SvREFCNT_inc (block)); 4207 av_push (*avp, SvREFCNT_inc (block));
… …
3623 4225
3624SV * 4226SV *
3625new (SV *klass, SV *count = 0) 4227new (SV *klass, SV *count = 0)
3626 CODE: 4228 CODE:
3627{ 4229{
3628 int semcnt = 1; 4230 int semcnt = 1;
3629 4231
3630 if (count) 4232 if (count)
3631 { 4233 {
3632 SvGETMAGIC (count); 4234 SvGETMAGIC (count);
3633 4235
… …
3693 XSRETURN_NO; 4295 XSRETURN_NO;
3694} 4296}
3695 4297
3696void 4298void
3697waiters (SV *self) 4299waiters (SV *self)
3698 PPCODE: 4300 PPCODE:
3699{ 4301{
3700 AV *av = (AV *)SvRV (self); 4302 AV *av = (AV *)SvRV (self);
3701 int wcount = AvFILLp (av) + 1 - 1; 4303 int wcount = AvFILLp (av) + 1 - 1;
3702 4304
3703 if (GIMME_V == G_SCALAR) 4305 if (GIMME_V == G_SCALAR)
… …
3712} 4314}
3713 4315
3714MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4316MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3715 4317
3716void 4318void
3717_may_delete (SV *sem, int count, int extra_refs) 4319_may_delete (SV *sem, int count, unsigned int extra_refs)
3718 PPCODE: 4320 PPCODE:
3719{ 4321{
3720 AV *av = (AV *)SvRV (sem); 4322 AV *av = (AV *)SvRV (sem);
3721 4323
3722 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4324 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3723 && AvFILLp (av) == 0 /* no waiters, just count */ 4325 && AvFILLp (av) == 0 /* no waiters, just count */
3724 && SvIV (AvARRAY (av)[0]) == count) 4326 && SvIV (AvARRAY (av)[0]) == count)
3725 XSRETURN_YES; 4327 XSRETURN_YES;
… …
3746 4348
3747void 4349void
3748broadcast (SV *self) 4350broadcast (SV *self)
3749 CODE: 4351 CODE:
3750{ 4352{
3751 AV *av = (AV *)SvRV (self); 4353 AV *av = (AV *)SvRV (self);
3752 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4354 coro_signal_wake (aTHX_ av, AvFILLp (av));
3753} 4355}
3754 4356
3755void 4357void
3756send (SV *self) 4358send (SV *self)
… …
3764 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4366 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3765} 4367}
3766 4368
3767IV 4369IV
3768awaited (SV *self) 4370awaited (SV *self)
3769 CODE: 4371 CODE:
3770 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4372 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3771 OUTPUT: 4373 OUTPUT:
3772 RETVAL 4374 RETVAL
3773 4375
3774 4376
… …
3779 4381
3780void 4382void
3781_schedule (...) 4383_schedule (...)
3782 CODE: 4384 CODE:
3783{ 4385{
3784 static int incede; 4386 static int incede;
3785 4387
3786 api_cede_notself (aTHX); 4388 api_cede_notself (aTHX);
3787 4389
3788 ++incede; 4390 ++incede;
3789 while (coro_nready >= incede && api_cede (aTHX)) 4391 while (coro_nready >= incede && api_cede (aTHX))
… …
3805 4407
3806void 4408void
3807_register (char *target, char *proto, SV *req) 4409_register (char *target, char *proto, SV *req)
3808 CODE: 4410 CODE:
3809{ 4411{
3810 CV *req_cv = coro_sv_2cv (aTHX_ req); 4412 SV *req_cv = s_get_cv_croak (req);
3811 /* newXSproto doesn't return the CV on 5.8 */ 4413 /* newXSproto doesn't return the CV on 5.8 */
3812 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4414 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3813 sv_setpv ((SV *)slf_cv, proto); 4415 sv_setpv ((SV *)slf_cv, proto);
3814 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4416 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3815} 4417}
3816 4418
4419MODULE = Coro::State PACKAGE = Coro::Select
4420
4421void
4422patch_pp_sselect ()
4423 CODE:
4424 if (!coro_old_pp_sselect)
4425 {
4426 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4427 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4428 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4429 }
4430
4431void
4432unpatch_pp_sselect ()
4433 CODE:
4434 if (coro_old_pp_sselect)
4435 {
4436 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4437 coro_old_pp_sselect = 0;
4438 }
4439
4440MODULE = Coro::State PACKAGE = Coro::Util
4441
4442void
4443_exit (int code)
4444 CODE:
4445 _exit (code);
4446
4447NV
4448time ()
4449 CODE:
4450 RETVAL = nvtime (aTHX);
4451 OUTPUT:
4452 RETVAL
4453
4454NV
4455gettimeofday ()
4456 PPCODE:
4457{
4458 UV tv [2];
4459 u2time (aTHX_ tv);
4460 EXTEND (SP, 2);
4461 PUSHs (sv_2mortal (newSVuv (tv [0])));
4462 PUSHs (sv_2mortal (newSVuv (tv [1])));
4463}
4464

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