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Comparing Coro/Coro/State.xs (file contents):
Revision 1.367 by root, Mon Aug 3 09:19:57 2009 UTC vs.
Revision 1.448 by root, Thu Jun 4 22:58:28 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
… …
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "schmorp.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 SVs_PADSTALE
28# define SVs_PADSTALE 0
29#endif
30
31#ifdef PadARRAY
32# define NEWPADAPI 1
33# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
34#else
35typedef AV PADNAMELIST;
36# if !PERL_VERSION_ATLEAST(5,8,0)
37typedef AV PADLIST;
38typedef AV PAD;
39# endif
40# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
41# define PadlistMAX(pl) AvFILLp (pl)
42# define PadlistNAMES(pl) (*PadlistARRAY (pl))
43# define PadARRAY AvARRAY
44# define PadMAX AvFILLp
45# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
46#endif
47#ifndef PadnamelistREFCNT
48# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
49#endif
50#ifndef PadnamelistREFCNT_dec
51# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
52#endif
53
54/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
55/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
56#if PERL_VERSION_ATLEAST(5,19,0)
57# define SVt_BIND SVt_IV
58#endif
59
60#if defined(_WIN32)
61# undef HAS_GETTIMEOFDAY
18# undef setjmp 62# undef setjmp
19# undef longjmp 63# undef longjmp
20# undef _exit 64# undef _exit
21# define setjmp _setjmp /* deep magic */ 65# define setjmp _setjmp /* deep magic */
22#else 66#else
23# include <inttypes.h> /* most portable stdint.h */ 67# include <inttypes.h> /* most portable stdint.h */
24#endif 68#endif
25 69
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 */ 70/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 71static int cctx_max_idle = 4;
55 72
56#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 73#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57# undef CORO_STACKGUARD 74# define HAS_SCOPESTACK_NAME 1
58#endif
59
60#ifndef CORO_STACKGUARD
61# define CORO_STACKGUARD 0
62#endif 75#endif
63 76
64/* prefer perl internal functions over our own? */ 77/* prefer perl internal functions over our own? */
65#ifndef CORO_PREFER_PERL_FUNCTIONS 78#ifndef CORO_PREFER_PERL_FUNCTIONS
66# define CORO_PREFER_PERL_FUNCTIONS 0 79# define CORO_PREFER_PERL_FUNCTIONS 0
… …
76# define STACKLEVEL ((void *)&stacklevel) 89# define STACKLEVEL ((void *)&stacklevel)
77#endif 90#endif
78 91
79#define IN_DESTRUCT PL_dirty 92#define IN_DESTRUCT PL_dirty
80 93
81#if __GNUC__ >= 3
82# define attribute(x) __attribute__(x)
83# define expect(expr,value) __builtin_expect ((expr), (value))
84# define INLINE static inline
85#else
86# define attribute(x)
87# define expect(expr,value) (expr)
88# define INLINE static
89#endif
90
91#define expect_false(expr) expect ((expr) != 0, 0)
92#define expect_true(expr) expect ((expr) != 0, 1)
93
94#define NOINLINE attribute ((noinline))
95
96#include "CoroAPI.h" 94#include "CoroAPI.h"
97#define GCoroAPI (&coroapi) /* very sneaky */ 95#define GCoroAPI (&coroapi) /* very sneaky */
98 96
99#ifdef USE_ITHREADS 97#ifdef USE_ITHREADS
100# if CORO_PTHREAD 98# if CORO_PTHREAD
… …
116static void (*u2time)(pTHX_ UV ret[2]); 114static void (*u2time)(pTHX_ UV ret[2]);
117 115
118/* we hijack an hopefully unused CV flag for our purposes */ 116/* we hijack an hopefully unused CV flag for our purposes */
119#define CVf_SLF 0x4000 117#define CVf_SLF 0x4000
120static OP *pp_slf (pTHX); 118static OP *pp_slf (pTHX);
119static void slf_destroy (pTHX_ struct coro *coro);
121 120
122static U32 cctx_gen; 121static U32 cctx_gen;
123static size_t cctx_stacksize = CORO_STACKSIZE; 122static size_t cctx_stacksize = CORO_STACKSIZE;
124static struct CoroAPI coroapi; 123static struct CoroAPI coroapi;
125static AV *main_mainstack; /* used to differentiate between $main and others */ 124static AV *main_mainstack; /* used to differentiate between $main and others */
… …
142static SV *sv_pool_size; 141static SV *sv_pool_size;
143static SV *sv_async_pool_idle; /* description string */ 142static SV *sv_async_pool_idle; /* description string */
144static AV *av_async_pool; /* idle pool */ 143static AV *av_async_pool; /* idle pool */
145static SV *sv_Coro; /* class string */ 144static SV *sv_Coro; /* class string */
146static CV *cv_pool_handler; 145static CV *cv_pool_handler;
147static CV *cv_coro_state_new;
148 146
149/* Coro::AnyEvent */ 147/* Coro::AnyEvent */
150static SV *sv_activity; 148static SV *sv_activity;
151 149
152/* enable processtime/realtime profiling */ 150/* enable processtime/realtime profiling */
… …
156static char times_valid; 154static char times_valid;
157 155
158static struct coro_cctx *cctx_first; 156static struct coro_cctx *cctx_first;
159static int cctx_count, cctx_idle; 157static int cctx_count, cctx_idle;
160 158
161enum { 159enum
160{
162 CC_MAPPED = 0x01, 161 CC_MAPPED = 0x01,
163 CC_NOREUSE = 0x02, /* throw this away after tracing */ 162 CC_NOREUSE = 0x02, /* throw this away after tracing */
164 CC_TRACE = 0x04, 163 CC_TRACE = 0x04,
165 CC_TRACE_SUB = 0x08, /* trace sub calls */ 164 CC_TRACE_SUB = 0x08, /* trace sub calls */
166 CC_TRACE_LINE = 0x10, /* trace each statement */ 165 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
171typedef struct coro_cctx 170typedef struct coro_cctx
172{ 171{
173 struct coro_cctx *next; 172 struct coro_cctx *next;
174 173
175 /* the stack */ 174 /* the stack */
176 void *sptr; 175 struct coro_stack stack;
177 size_t ssize;
178 176
179 /* cpu state */ 177 /* cpu state */
180 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 178 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
179#ifndef NDEBUG
181 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 180 JMPENV *idle_te; /* same as idle_sp, but for top_env */
181#endif
182 JMPENV *top_env; 182 JMPENV *top_env;
183 coro_context cctx; 183 coro_context cctx;
184 184
185 U32 gen; 185 U32 gen;
186#if CORO_USE_VALGRIND 186#if CORO_USE_VALGRIND
187 int valgrind_id; 187 int valgrind_id;
188#endif 188#endif
189 unsigned char flags; 189 unsigned char flags;
190} coro_cctx; 190} coro_cctx;
191 191
192coro_cctx *cctx_current; /* the currently running cctx */ 192static coro_cctx *cctx_current; /* the currently running cctx */
193 193
194/*****************************************************************************/ 194/*****************************************************************************/
195 195
196static MGVTBL coro_state_vtbl;
197
196enum { 198enum
199{
197 CF_RUNNING = 0x0001, /* coroutine is running */ 200 CF_RUNNING = 0x0001, /* coroutine is running */
198 CF_READY = 0x0002, /* coroutine is ready */ 201 CF_READY = 0x0002, /* coroutine is ready */
199 CF_NEW = 0x0004, /* has never been switched to */ 202 CF_NEW = 0x0004, /* has never been switched to */
200 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 203 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
201 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 204 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
205 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
202}; 206};
203 207
204/* the structure where most of the perl state is stored, overlaid on the cxstack */ 208/* the structure where most of the perl state is stored, overlaid on the cxstack */
205typedef struct 209typedef struct
206{ 210{
207 SV *defsv;
208 AV *defav;
209 SV *errsv;
210 SV *irsgv;
211 HV *hinthv;
212#define VAR(name,type) type name; 211 #define VARx(name,expr,type) type name;
213# include "state.h" 212 #include "state.h"
214#undef VAR
215} perl_slots; 213} perl_slots;
216 214
215/* how many context stack entries do we need for perl_slots */
217#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 216#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
218 217
219/* this is a structure representing a perl-level coroutine */ 218/* this is a structure representing a perl-level coroutine */
220struct coro { 219struct coro
220{
221 /* the C coroutine allocated to this perl coroutine, if any */ 221 /* the C coroutine allocated to this perl coroutine, if any */
222 coro_cctx *cctx; 222 coro_cctx *cctx;
223 223
224 /* ready queue */ 224 /* ready queue */
225 struct coro *next_ready; 225 struct coro *next_ready;
… …
227 /* state data */ 227 /* state data */
228 struct CoroSLF slf_frame; /* saved slf frame */ 228 struct CoroSLF slf_frame; /* saved slf frame */
229 AV *mainstack; 229 AV *mainstack;
230 perl_slots *slot; /* basically the saved sp */ 230 perl_slots *slot; /* basically the saved sp */
231 231
232 CV *startcv; /* the CV to execute */ 232 CV *startcv; /* the CV to execute */
233 AV *args; /* data associated with this coroutine (initial args) */ 233 AV *args; /* data associated with this coroutine (initial args) */
234 int refcnt; /* coroutines are refcounted, yes */
235 int flags; /* CF_ flags */ 234 int flags; /* CF_ flags */
236 HV *hv; /* the perl hash associated with this coro, if any */ 235 HV *hv; /* the perl hash associated with this coro, if any */
237 void (*on_destroy)(pTHX_ struct coro *coro);
238 236
239 /* statistics */ 237 /* statistics */
240 int usecount; /* number of transfers to this coro */ 238 int usecount; /* number of transfers to this coro */
241 239
242 /* coro process data */ 240 /* coro process data */
243 int prio; 241 int prio;
244 SV *except; /* exception to be thrown */ 242 SV *except; /* exception to be thrown */
245 SV *rouse_cb; 243 SV *rouse_cb; /* last rouse callback */
244 AV *on_destroy; /* callbacks or coros to notify on destroy */
245 AV *status; /* the exit status list */
246 246
247 /* async_pool */ 247 /* async_pool */
248 SV *saved_deffh; 248 SV *saved_deffh;
249 SV *invoke_cb; 249 SV *invoke_cb;
250 AV *invoke_av; 250 AV *invoke_av;
251 251
252 /* on_enter/on_leave */ 252 /* on_enter/on_leave */
253 AV *on_enter; 253 AV *on_enter;
254 AV *on_leave; 254 AV *on_leave;
255 255
256 /* swap_sv */
257 AV *swap_sv;
258
256 /* times */ 259 /* times */
257 coro_ts t_cpu, t_real; 260 coro_ts t_cpu, t_real;
258 261
259 /* linked list */ 262 /* linked list */
260 struct coro *next, *prev; 263 struct coro *next, *prev;
… …
263typedef struct coro *Coro__State; 266typedef struct coro *Coro__State;
264typedef struct coro *Coro__State_or_hashref; 267typedef struct coro *Coro__State_or_hashref;
265 268
266/* the following variables are effectively part of the perl context */ 269/* the following variables are effectively part of the perl context */
267/* and get copied between struct coro and these variables */ 270/* and get copied between struct coro and these variables */
268/* the mainr easonw e don't support windows process emulation */ 271/* the main reason we don't support windows process emulation */
269static struct CoroSLF slf_frame; /* the current slf frame */ 272static struct CoroSLF slf_frame; /* the current slf frame */
270 273
271/** Coro ********************************************************************/ 274/** Coro ********************************************************************/
272 275
273#define CORO_PRIO_MAX 3 276#define CORO_PRIO_MAX 3
… …
279 282
280/* for Coro.pm */ 283/* for Coro.pm */
281static SV *coro_current; 284static SV *coro_current;
282static SV *coro_readyhook; 285static SV *coro_readyhook;
283static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 286static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
284static CV *cv_coro_run, *cv_coro_terminate; 287static CV *cv_coro_run;
285static struct coro *coro_first; 288static struct coro *coro_first;
286#define coro_nready coroapi.nready 289#define coro_nready coroapi.nready
287 290
291/** JIT *********************************************************************/
292
293#if CORO_JIT
294 /* APPLE doesn't have mmap though */
295 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
296 #ifndef CORO_JIT_TYPE
297 #if ECB_AMD64 && CORO_JIT_UNIXY
298 #define CORO_JIT_TYPE "amd64-unix"
299 #elif __i386 && CORO_JIT_UNIXY
300 #define CORO_JIT_TYPE "x86-unix"
301 #endif
302 #endif
303#endif
304
305#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
306 #undef CORO_JIT
307#endif
308
309#if CORO_JIT
310 typedef void (*load_save_perl_slots_type)(perl_slots *);
311 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
312#endif
313
288/** Coro::Select ************************************************************/ 314/** Coro::Select ************************************************************/
289 315
290static OP *(*coro_old_pp_sselect) (pTHX); 316static OP *(*coro_old_pp_sselect) (pTHX);
291static SV *coro_select_select; 317static SV *coro_select_select;
292 318
293/* horrible hack, but if it works... */ 319/* horrible hack, but if it works... */
294static OP * 320static OP *
295coro_pp_sselect (aTHX) 321coro_pp_sselect (pTHX)
296{ 322{
297 dSP; 323 dSP;
298 PUSHMARK (SP - 4); /* fake argument list */ 324 PUSHMARK (SP - 4); /* fake argument list */
299 XPUSHs (coro_select_select); 325 XPUSHs (coro_select_select);
300 PUTBACK; 326 PUTBACK;
… …
303 PL_op->op_flags |= OPf_STACKED; 329 PL_op->op_flags |= OPf_STACKED;
304 PL_op->op_private = 0; 330 PL_op->op_private = 0;
305 return PL_ppaddr [OP_ENTERSUB](aTHX); 331 return PL_ppaddr [OP_ENTERSUB](aTHX);
306} 332}
307 333
334/** time stuff **************************************************************/
335
336#ifdef HAS_GETTIMEOFDAY
337
338ecb_inline void
339coro_u2time (pTHX_ UV ret[2])
340{
341 struct timeval tv;
342 gettimeofday (&tv, 0);
343
344 ret [0] = tv.tv_sec;
345 ret [1] = tv.tv_usec;
346}
347
348ecb_inline double
349coro_nvtime (void)
350{
351 struct timeval tv;
352 gettimeofday (&tv, 0);
353
354 return tv.tv_sec + tv.tv_usec * 1e-6;
355}
356
357ecb_inline void
358time_init (pTHX)
359{
360 nvtime = coro_nvtime;
361 u2time = coro_u2time;
362}
363
364#else
365
366ecb_inline void
367time_init (pTHX)
368{
369 SV **svp;
370
371 require_pv ("Time/HiRes.pm");
372
373 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
374
375 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
376 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
377
378 nvtime = INT2PTR (double (*)(), SvIV (*svp));
379
380 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
381 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
382}
383
384#endif
385
308/** lowlevel stuff **********************************************************/ 386/** lowlevel stuff **********************************************************/
309 387
310static SV * 388static SV * ecb_noinline
311coro_get_sv (pTHX_ const char *name, int create) 389coro_get_sv (pTHX_ const char *name, int create)
312{ 390{
313#if PERL_VERSION_ATLEAST (5,10,0) 391#if PERL_VERSION_ATLEAST (5,10,0)
314 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 392 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
315 get_sv (name, create); 393 get_sv (name, create);
316#endif 394#endif
317 return get_sv (name, create); 395 return get_sv (name, create);
318} 396}
319 397
320static AV * 398static AV * ecb_noinline
321coro_get_av (pTHX_ const char *name, int create) 399coro_get_av (pTHX_ const char *name, int create)
322{ 400{
323#if PERL_VERSION_ATLEAST (5,10,0) 401#if PERL_VERSION_ATLEAST (5,10,0)
324 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 402 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
325 get_av (name, create); 403 get_av (name, create);
326#endif 404#endif
327 return get_av (name, create); 405 return get_av (name, create);
328} 406}
329 407
330static HV * 408static HV * ecb_noinline
331coro_get_hv (pTHX_ const char *name, int create) 409coro_get_hv (pTHX_ const char *name, int create)
332{ 410{
333#if PERL_VERSION_ATLEAST (5,10,0) 411#if PERL_VERSION_ATLEAST (5,10,0)
334 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 412 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
335 get_hv (name, create); 413 get_hv (name, create);
336#endif 414#endif
337 return get_hv (name, create); 415 return get_hv (name, create);
338} 416}
339 417
340INLINE void 418ecb_inline void
341coro_times_update () 419coro_times_update (void)
342{ 420{
343#ifdef coro_clock_gettime 421#ifdef coro_clock_gettime
344 struct timespec ts; 422 struct timespec ts;
345 423
346 ts.tv_sec = ts.tv_nsec = 0; 424 ts.tv_sec = ts.tv_nsec = 0;
… …
358 time_real [0] = tv [0]; 436 time_real [0] = tv [0];
359 time_real [1] = tv [1] * 1000; 437 time_real [1] = tv [1] * 1000;
360#endif 438#endif
361} 439}
362 440
363INLINE void 441ecb_inline void
364coro_times_add (struct coro *c) 442coro_times_add (struct coro *c)
365{ 443{
366 c->t_real [1] += time_real [1]; 444 c->t_real [1] += time_real [1];
367 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 445 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
368 c->t_real [0] += time_real [0]; 446 c->t_real [0] += time_real [0];
… …
370 c->t_cpu [1] += time_cpu [1]; 448 c->t_cpu [1] += time_cpu [1];
371 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 449 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
372 c->t_cpu [0] += time_cpu [0]; 450 c->t_cpu [0] += time_cpu [0];
373} 451}
374 452
375INLINE void 453ecb_inline void
376coro_times_sub (struct coro *c) 454coro_times_sub (struct coro *c)
377{ 455{
378 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 456 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
379 c->t_real [1] -= time_real [1]; 457 c->t_real [1] -= time_real [1];
380 c->t_real [0] -= time_real [0]; 458 c->t_real [0] -= time_real [0];
… …
388/* magic glue */ 466/* magic glue */
389 467
390#define CORO_MAGIC_type_cv 26 468#define CORO_MAGIC_type_cv 26
391#define CORO_MAGIC_type_state PERL_MAGIC_ext 469#define CORO_MAGIC_type_state PERL_MAGIC_ext
392 470
393#define CORO_MAGIC_NN(sv, type) \ 471#define CORO_MAGIC_NN(sv, type) \
394 (expect_true (SvMAGIC (sv)->mg_type == type) \ 472 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
395 ? SvMAGIC (sv) \ 473 ? SvMAGIC (sv) \
396 : mg_find (sv, type)) 474 : mg_find (sv, type))
397 475
398#define CORO_MAGIC(sv, type) \ 476#define CORO_MAGIC(sv, type) \
399 (expect_true (SvMAGIC (sv)) \ 477 (ecb_expect_true (SvMAGIC (sv)) \
400 ? CORO_MAGIC_NN (sv, type) \ 478 ? CORO_MAGIC_NN (sv, type) \
401 : 0) 479 : 0)
402 480
403#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 481#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
404#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 482#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
405 483
406INLINE struct coro * 484ecb_inline MAGIC *
485SvSTATEhv_p (pTHX_ SV *coro)
486{
487 MAGIC *mg;
488
489 if (ecb_expect_true (
490 SvTYPE (coro) == SVt_PVHV
491 && (mg = CORO_MAGIC_state (coro))
492 && mg->mg_virtual == &coro_state_vtbl
493 ))
494 return mg;
495
496 return 0;
497}
498
499ecb_inline struct coro *
407SvSTATE_ (pTHX_ SV *coro) 500SvSTATE_ (pTHX_ SV *coro)
408{ 501{
409 HV *stash;
410 MAGIC *mg; 502 MAGIC *mg;
411 503
412 if (SvROK (coro)) 504 if (SvROK (coro))
413 coro = SvRV (coro); 505 coro = SvRV (coro);
414 506
415 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 507 mg = SvSTATEhv_p (aTHX_ coro);
508 if (!mg)
416 croak ("Coro::State object required"); 509 croak ("Coro::State object required");
417 510
418 stash = SvSTASH (coro);
419 if (expect_false (stash != coro_stash && stash != coro_state_stash))
420 {
421 /* very slow, but rare, check */
422 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
423 croak ("Coro::State object required");
424 }
425
426 mg = CORO_MAGIC_state (coro);
427 return (struct coro *)mg->mg_ptr; 511 return (struct coro *)mg->mg_ptr;
428} 512}
429 513
430#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 514#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
431 515
… …
434#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 518#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
435 519
436/*****************************************************************************/ 520/*****************************************************************************/
437/* padlist management and caching */ 521/* padlist management and caching */
438 522
439static AV * 523ecb_inline PADLIST *
440coro_derive_padlist (pTHX_ CV *cv) 524coro_derive_padlist (pTHX_ CV *cv)
441{ 525{
442 AV *padlist = CvPADLIST (cv); 526 PADLIST *padlist = CvPADLIST (cv);
443 AV *newpadlist, *newpad; 527 PADLIST *newpadlist;
528 PADNAMELIST *padnames;
529 PAD *newpad;
530 PADOFFSET off = PadlistMAX (padlist) + 1;
444 531
445 newpadlist = newAV (); 532#if NEWPADAPI
533
534 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
535 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
536 while (!PadlistARRAY (padlist)[off - 1])
537 --off;
538
539 Perl_pad_push (aTHX_ padlist, off);
540
541 newpad = PadlistARRAY (padlist)[off];
542 PadlistARRAY (padlist)[off] = 0;
543
544#else
545
546#if PERL_VERSION_ATLEAST (5,10,0)
547 Perl_pad_push (aTHX_ padlist, off);
548#else
549 Perl_pad_push (aTHX_ padlist, off, 1);
550#endif
551
552 newpad = PadlistARRAY (padlist)[off];
553 PadlistMAX (padlist) = off - 1;
554
555#endif
556
557 newPADLIST (newpadlist);
558#if !PERL_VERSION_ATLEAST(5,15,3)
559 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
446 AvREAL_off (newpadlist); 560 AvREAL_off (newpadlist);
447#if PERL_VERSION_ATLEAST (5,10,0)
448 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
449#else
450 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
451#endif 561#endif
452 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
453 --AvFILLp (padlist);
454 562
455 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 563 /* Already extended to 2 elements by newPADLIST. */
456 av_store (newpadlist, 1, (SV *)newpad); 564 PadlistMAX (newpadlist) = 1;
565
566 padnames = PadlistNAMES (padlist);
567 ++PadnamelistREFCNT (padnames);
568 PadlistNAMES (newpadlist) = padnames;
569
570 PadlistARRAY (newpadlist)[1] = newpad;
457 571
458 return newpadlist; 572 return newpadlist;
459} 573}
460 574
461static void 575ecb_inline void
462free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
463{ 577{
464 /* may be during global destruction */ 578 /* may be during global destruction */
465 if (!IN_DESTRUCT) 579 if (!IN_DESTRUCT)
466 { 580 {
467 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
468 582
469 while (i > 0) /* special-case index 0 */ 583 while (i > 0) /* special-case index 0 */
470 { 584 {
471 /* we try to be extra-careful here */ 585 /* we try to be extra-careful here */
472 AV *av = (AV *)AvARRAY (padlist)[i--]; 586 PAD *pad = PadlistARRAY (padlist)[i--];
473 I32 j = AvFILLp (av);
474 587
588 if (pad)
589 {
590 I32 j = PadMAX (pad);
591
475 while (j >= 0) 592 while (j >= 0)
476 SvREFCNT_dec (AvARRAY (av)[j--]); 593 SvREFCNT_dec (PadARRAY (pad)[j--]);
477 594
478 AvFILLp (av) = -1; 595 PadMAX (pad) = -1;
479 SvREFCNT_dec (av); 596 SvREFCNT_dec (pad);
597 }
480 } 598 }
481 599
482 SvREFCNT_dec (AvARRAY (padlist)[0]); 600 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
483 601
602#if NEWPADAPI
603 Safefree (PadlistARRAY (padlist));
604 Safefree (padlist);
605#else
484 AvFILLp (padlist) = -1; 606 AvFILLp (padlist) = -1;
607 AvREAL_off (padlist);
485 SvREFCNT_dec ((SV*)padlist); 608 SvREFCNT_dec ((SV*)padlist);
609#endif
486 } 610 }
487} 611}
488 612
489static int 613static int
490coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 614coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
491{ 615{
492 AV *padlist; 616 PADLIST *padlist;
493 AV *av = (AV *)mg->mg_obj; 617 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
618 size_t len = *(size_t *)mg->mg_ptr;
494 619
495 /* perl manages to free our internal AV and _then_ call us */ 620 /* perl manages to free our internal AV and _then_ call us */
496 if (IN_DESTRUCT) 621 if (IN_DESTRUCT)
497 return 0; 622 return 0;
498 623
499 /* casting is fun. */ 624 while (len--)
500 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
501 free_padlist (aTHX_ padlist); 625 free_padlist (aTHX_ padlists[len]);
502
503 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
504 626
505 return 0; 627 return 0;
506} 628}
507 629
508static MGVTBL coro_cv_vtbl = { 630static MGVTBL coro_cv_vtbl = {
509 0, 0, 0, 0, 631 0, 0, 0, 0,
510 coro_cv_free 632 coro_cv_free
511}; 633};
512 634
513/* the next two functions merely cache the padlists */ 635/* the next two functions merely cache the padlists */
514static void 636ecb_inline void
515get_padlist (pTHX_ CV *cv) 637get_padlist (pTHX_ CV *cv)
516{ 638{
517 MAGIC *mg = CORO_MAGIC_cv (cv); 639 MAGIC *mg = CORO_MAGIC_cv (cv);
518 AV *av; 640 size_t *lenp;
519 641
520 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 642 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
521 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 643 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
522 else 644 else
523 { 645 {
524#if CORO_PREFER_PERL_FUNCTIONS 646#if CORO_PREFER_PERL_FUNCTIONS
525 /* this is probably cleaner? but also slower! */ 647 /* this is probably cleaner? but also slower! */
526 /* in practise, it seems to be less stable */ 648 /* in practise, it seems to be less stable */
… …
532 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 654 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
533#endif 655#endif
534 } 656 }
535} 657}
536 658
537static void 659ecb_inline void
538put_padlist (pTHX_ CV *cv) 660put_padlist (pTHX_ CV *cv)
539{ 661{
540 MAGIC *mg = CORO_MAGIC_cv (cv); 662 MAGIC *mg = CORO_MAGIC_cv (cv);
541 AV *av;
542 663
543 if (expect_false (!mg)) 664 if (ecb_expect_false (!mg))
665 {
544 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 666 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
667 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
668 mg->mg_len = 1; /* so mg_free frees mg_ptr */
669 }
670 else
671 Renew (mg->mg_ptr,
672 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
673 char);
545 674
546 av = (AV *)mg->mg_obj; 675 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
547
548 if (expect_false (AvFILLp (av) >= AvMAX (av)))
549 av_extend (av, AvFILLp (av) + 1);
550
551 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
552} 676}
553 677
554/** load & save, init *******************************************************/ 678/** load & save, init *******************************************************/
679
680ecb_inline void
681swap_sv (SV *a, SV *b)
682{
683 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
684 SV tmp;
685
686 /* swap sv_any */
687 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
688
689 /* swap sv_flags */
690 SvFLAGS (&tmp) = SvFLAGS (a);
691 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
692 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
693
694#if PERL_VERSION_ATLEAST (5,10,0)
695 /* perl 5.10 and later complicates this _quite_ a bit, but it also
696 * is much faster, so no quarrels here. alternatively, we could
697 * sv_upgrade to avoid this.
698 */
699 {
700 /* swap sv_u */
701 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
702
703 /* if SvANY points to the head, we need to adjust the pointers,
704 * as the pointer for a still points to b, and maybe vice versa.
705 */
706 #define svany_in_head(type) \
707 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
708
709 if (svany_in_head (SvTYPE (a)))
710 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
711
712 if (svany_in_head (SvTYPE (b)))
713 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
714 }
715#endif
716}
717
718/* swap sv heads, at least logically */
719static void
720swap_svs (pTHX_ Coro__State c)
721{
722 int i;
723
724 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
725 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
726}
727
728#define SWAP_SVS(coro) \
729 if (ecb_expect_false ((coro)->swap_sv)) \
730 swap_svs (aTHX_ (coro))
555 731
556static void 732static void
557on_enterleave_call (pTHX_ SV *cb); 733on_enterleave_call (pTHX_ SV *cb);
558 734
559static void 735static void
… …
562 perl_slots *slot = c->slot; 738 perl_slots *slot = c->slot;
563 c->slot = 0; 739 c->slot = 0;
564 740
565 PL_mainstack = c->mainstack; 741 PL_mainstack = c->mainstack;
566 742
567 GvSV (PL_defgv) = slot->defsv; 743#if CORO_JIT
568 GvAV (PL_defgv) = slot->defav; 744 load_perl_slots (slot);
569 GvSV (PL_errgv) = slot->errsv; 745#else
570 GvSV (irsgv) = slot->irsgv;
571 GvHV (PL_hintgv) = slot->hinthv;
572
573 #define VAR(name,type) PL_ ## name = slot->name; 746 #define VARx(name,expr,type) expr = slot->name;
574 # include "state.h" 747 #include "state.h"
575 #undef VAR 748#endif
576 749
577 { 750 {
578 dSP; 751 dSP;
579 752
580 CV *cv; 753 CV *cv;
581 754
582 /* now do the ugly restore mess */ 755 /* now do the ugly restore mess */
583 while (expect_true (cv = (CV *)POPs)) 756 while (ecb_expect_true (cv = (CV *)POPs))
584 { 757 {
585 put_padlist (aTHX_ cv); /* mark this padlist as available */ 758 put_padlist (aTHX_ cv); /* mark this padlist as available */
586 CvDEPTH (cv) = PTR2IV (POPs); 759 CvDEPTH (cv) = PTR2IV (POPs);
587 CvPADLIST (cv) = (AV *)POPs; 760 CvPADLIST (cv) = (PADLIST *)POPs;
588 } 761 }
589 762
590 PUTBACK; 763 PUTBACK;
591 } 764 }
592 765
593 slf_frame = c->slf_frame; 766 slf_frame = c->slf_frame;
594 CORO_THROW = c->except; 767 CORO_THROW = c->except;
595 768
596 if (expect_false (enable_times)) 769 if (ecb_expect_false (enable_times))
597 { 770 {
598 if (expect_false (!times_valid)) 771 if (ecb_expect_false (!times_valid))
599 coro_times_update (); 772 coro_times_update ();
600 773
601 coro_times_sub (c); 774 coro_times_sub (c);
602 } 775 }
603 776
604 if (expect_false (c->on_enter)) 777 if (ecb_expect_false (c->on_enter))
605 { 778 {
606 int i; 779 int i;
607 780
608 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 781 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
609 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 782 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
610 } 783 }
784
785 SWAP_SVS (c);
611} 786}
612 787
613static void 788static void
614save_perl (pTHX_ Coro__State c) 789save_perl (pTHX_ Coro__State c)
615{ 790{
791 SWAP_SVS (c);
792
616 if (expect_false (c->on_leave)) 793 if (ecb_expect_false (c->on_leave))
617 { 794 {
618 int i; 795 int i;
619 796
620 for (i = AvFILLp (c->on_leave); i >= 0; --i) 797 for (i = AvFILLp (c->on_leave); i >= 0; --i)
621 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 798 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
622 } 799 }
623 800
624 times_valid = 0; 801 times_valid = 0;
625 802
626 if (expect_false (enable_times)) 803 if (ecb_expect_false (enable_times))
627 { 804 {
628 coro_times_update (); times_valid = 1; 805 coro_times_update (); times_valid = 1;
629 coro_times_add (c); 806 coro_times_add (c);
630 } 807 }
631 808
… …
645 822
646 XPUSHs (Nullsv); 823 XPUSHs (Nullsv);
647 /* this loop was inspired by pp_caller */ 824 /* this loop was inspired by pp_caller */
648 for (;;) 825 for (;;)
649 { 826 {
650 while (expect_true (cxix >= 0)) 827 while (ecb_expect_true (cxix >= 0))
651 { 828 {
652 PERL_CONTEXT *cx = &ccstk[cxix--]; 829 PERL_CONTEXT *cx = &ccstk[cxix--];
653 830
654 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 831 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
655 { 832 {
656 CV *cv = cx->blk_sub.cv; 833 CV *cv = cx->blk_sub.cv;
657 834
658 if (expect_true (CvDEPTH (cv))) 835 if (ecb_expect_true (CvDEPTH (cv)))
659 { 836 {
660 EXTEND (SP, 3); 837 EXTEND (SP, 3);
661 PUSHs ((SV *)CvPADLIST (cv)); 838 PUSHs ((SV *)CvPADLIST (cv));
662 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 839 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
663 PUSHs ((SV *)cv); 840 PUSHs ((SV *)cv);
… …
666 get_padlist (aTHX_ cv); 843 get_padlist (aTHX_ cv);
667 } 844 }
668 } 845 }
669 } 846 }
670 847
671 if (expect_true (top_si->si_type == PERLSI_MAIN)) 848 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
672 break; 849 break;
673 850
674 top_si = top_si->si_prev; 851 top_si = top_si->si_prev;
675 ccstk = top_si->si_cxstack; 852 ccstk = top_si->si_cxstack;
676 cxix = top_si->si_cxix; 853 cxix = top_si->si_cxix;
… …
678 855
679 PUTBACK; 856 PUTBACK;
680 } 857 }
681 858
682 /* allocate some space on the context stack for our purposes */ 859 /* allocate some space on the context stack for our purposes */
683 /* we manually unroll here, as usually 2 slots is enough */ 860 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
684 if (SLOT_COUNT >= 1) CXINC;
685 if (SLOT_COUNT >= 2) CXINC;
686 if (SLOT_COUNT >= 3) CXINC;
687 { 861 {
688 unsigned int i; 862 unsigned int i;
863
689 for (i = 3; i < SLOT_COUNT; ++i) 864 for (i = 0; i < SLOT_COUNT; ++i)
690 CXINC; 865 CXINC;
691 } 866
692 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 867 cxstack_ix -= SLOT_COUNT; /* undo allocation */
868 }
693 869
694 c->mainstack = PL_mainstack; 870 c->mainstack = PL_mainstack;
695 871
696 { 872 {
697 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 873 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
698 874
699 slot->defav = GvAV (PL_defgv); 875#if CORO_JIT
700 slot->defsv = DEFSV; 876 save_perl_slots (slot);
701 slot->errsv = ERRSV; 877#else
702 slot->irsgv = GvSV (irsgv);
703 slot->hinthv = GvHV (PL_hintgv);
704
705 #define VAR(name,type) slot->name = PL_ ## name; 878 #define VARx(name,expr,type) slot->name = expr;
706 # include "state.h" 879 #include "state.h"
707 #undef VAR 880#endif
708 } 881 }
709} 882}
710 883
711/* 884/*
712 * allocate various perl stacks. This is almost an exact copy 885 * allocate various perl stacks. This is almost an exact copy
… …
718# define coro_init_stacks(thx) init_stacks () 891# define coro_init_stacks(thx) init_stacks ()
719#else 892#else
720static void 893static void
721coro_init_stacks (pTHX) 894coro_init_stacks (pTHX)
722{ 895{
723 PL_curstackinfo = new_stackinfo(32, 8); 896 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
724 PL_curstackinfo->si_type = PERLSI_MAIN; 897 PL_curstackinfo->si_type = PERLSI_MAIN;
725 PL_curstack = PL_curstackinfo->si_stack; 898 PL_curstack = PL_curstackinfo->si_stack;
726 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 899 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
727 900
728 PL_stack_base = AvARRAY(PL_curstack); 901 PL_stack_base = AvARRAY(PL_curstack);
… …
743#endif 916#endif
744 917
745 New(54,PL_scopestack,8,I32); 918 New(54,PL_scopestack,8,I32);
746 PL_scopestack_ix = 0; 919 PL_scopestack_ix = 0;
747 PL_scopestack_max = 8; 920 PL_scopestack_max = 8;
921#if HAS_SCOPESTACK_NAME
922 New(54,PL_scopestack_name,8,const char*);
923#endif
748 924
749 New(54,PL_savestack,24,ANY); 925 New(54,PL_savestack,24,ANY);
750 PL_savestack_ix = 0; 926 PL_savestack_ix = 0;
751 PL_savestack_max = 24; 927 PL_savestack_max = 24;
752 928
… …
780 } 956 }
781 957
782 Safefree (PL_tmps_stack); 958 Safefree (PL_tmps_stack);
783 Safefree (PL_markstack); 959 Safefree (PL_markstack);
784 Safefree (PL_scopestack); 960 Safefree (PL_scopestack);
961#if HAS_SCOPESTACK_NAME
962 Safefree (PL_scopestack_name);
963#endif
785 Safefree (PL_savestack); 964 Safefree (PL_savestack);
786#if !PERL_VERSION_ATLEAST (5,10,0) 965#if !PERL_VERSION_ATLEAST (5,10,0)
787 Safefree (PL_retstack); 966 Safefree (PL_retstack);
788#endif 967#endif
789} 968}
… …
835#endif 1014#endif
836 1015
837/* 1016/*
838 * This overrides the default magic get method of %SIG elements. 1017 * This overrides the default magic get method of %SIG elements.
839 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1018 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
840 * and instead of trying to save and restore the hash elements, we just provide 1019 * and instead of trying to save and restore the hash elements (extremely slow),
841 * readback here. 1020 * we just provide our own readback here.
842 */ 1021 */
843static int 1022static int ecb_cold
844coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1023coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
845{ 1024{
846 const char *s = MgPV_nolen_const (mg); 1025 const char *s = MgPV_nolen_const (mg);
847 1026
848 if (*s == '_') 1027 if (*s == '_')
849 { 1028 {
850 SV **svp = 0; 1029 SV **svp = 0;
851 1030
852 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1031 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
853 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1032 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
854 1033
855 if (svp) 1034 if (svp)
856 { 1035 {
857 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1036 SV *ssv;
1037
1038 if (!*svp)
1039 ssv = &PL_sv_undef;
1040 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1041 ssv = sv_2mortal (newRV_inc (*svp));
1042 else
1043 ssv = *svp;
1044
1045 sv_setsv (sv, ssv);
858 return 0; 1046 return 0;
859 } 1047 }
860 } 1048 }
861 1049
862 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1050 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
863} 1051}
864 1052
865static int 1053static int ecb_cold
866coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1054coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
867{ 1055{
868 const char *s = MgPV_nolen_const (mg); 1056 const char *s = MgPV_nolen_const (mg);
869 1057
870 if (*s == '_') 1058 if (*s == '_')
… …
884 } 1072 }
885 1073
886 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1074 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
887} 1075}
888 1076
889static int 1077static int ecb_cold
890coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1078coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
891{ 1079{
892 const char *s = MgPV_nolen_const (mg); 1080 const char *s = MgPV_nolen_const (mg);
893 1081
894 if (*s == '_') 1082 if (*s == '_')
… …
927slf_check_repeat (pTHX_ struct CoroSLF *frame) 1115slf_check_repeat (pTHX_ struct CoroSLF *frame)
928{ 1116{
929 return 1; 1117 return 1;
930} 1118}
931 1119
932static UNOP coro_setup_op; 1120static UNOP init_perl_op;
933 1121
934static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1122ecb_noinline static void /* noinline to keep it out of the transfer fast path */
935coro_setup (pTHX_ struct coro *coro) 1123init_perl (pTHX_ struct coro *coro)
936{ 1124{
937 /* 1125 /*
938 * emulate part of the perl startup here. 1126 * emulate part of the perl startup here.
939 */ 1127 */
940 coro_init_stacks (aTHX); 1128 coro_init_stacks (aTHX);
… …
947 PL_comppad_name_fill = 0; 1135 PL_comppad_name_fill = 0;
948 PL_comppad_name_floor = 0; 1136 PL_comppad_name_floor = 0;
949 PL_curpm = 0; 1137 PL_curpm = 0;
950 PL_curpad = 0; 1138 PL_curpad = 0;
951 PL_localizing = 0; 1139 PL_localizing = 0;
952 PL_dirty = 0;
953 PL_restartop = 0; 1140 PL_restartop = 0;
954#if PERL_VERSION_ATLEAST (5,10,0) 1141#if PERL_VERSION_ATLEAST (5,10,0)
955 PL_parser = 0; 1142 PL_parser = 0;
956#endif 1143#endif
957 PL_hints = 0; 1144 PL_hints = 0;
958 1145
959 /* recreate the die/warn hooks */ 1146 /* recreate the die/warn hooks */
960 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1147 PL_diehook = SvREFCNT_inc (rv_diehook);
961 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1148 PL_warnhook = SvREFCNT_inc (rv_warnhook);
962 1149
963 GvSV (PL_defgv) = newSV (0); 1150 GvSV (PL_defgv) = newSV (0);
964 GvAV (PL_defgv) = coro->args; coro->args = 0; 1151 GvAV (PL_defgv) = coro->args; coro->args = 0;
965 GvSV (PL_errgv) = newSV (0); 1152 GvSV (PL_errgv) = newSV (0);
966 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1153 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
967 GvHV (PL_hintgv) = 0; 1154 GvHV (PL_hintgv) = newHV ();
1155#if PERL_VERSION_ATLEAST (5,10,0)
1156 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1157#endif
968 PL_rs = newSVsv (GvSV (irsgv)); 1158 PL_rs = newSVsv (GvSV (irsgv));
969 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1159 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
970 1160
971 { 1161 {
972 dSP; 1162 dSP;
… …
987 /* this newly created coroutine might be run on an existing cctx which most 1177 /* this newly created coroutine might be run on an existing cctx which most
988 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1178 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
989 */ 1179 */
990 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1180 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
991 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1181 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1182 slf_frame.destroy = 0;
992 1183
993 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1184 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
994 coro_setup_op.op_next = PL_op; 1185 init_perl_op.op_next = PL_op;
995 coro_setup_op.op_type = OP_ENTERSUB; 1186 init_perl_op.op_type = OP_ENTERSUB;
996 coro_setup_op.op_ppaddr = pp_slf; 1187 init_perl_op.op_ppaddr = pp_slf;
997 /* no flags etc. required, as an init function won't be called */ 1188 /* no flags etc. required, as an init function won't be called */
998 1189
999 PL_op = (OP *)&coro_setup_op; 1190 PL_op = (OP *)&init_perl_op;
1000 1191
1001 /* copy throw, in case it was set before coro_setup */ 1192 /* copy throw, in case it was set before init_perl */
1002 CORO_THROW = coro->except; 1193 CORO_THROW = coro->except;
1003 1194
1195 SWAP_SVS (coro);
1196
1004 if (expect_false (enable_times)) 1197 if (ecb_expect_false (enable_times))
1005 { 1198 {
1006 coro_times_update (); 1199 coro_times_update ();
1007 coro_times_sub (coro); 1200 coro_times_sub (coro);
1008 } 1201 }
1009} 1202}
… …
1028 dounwind (-1); 1221 dounwind (-1);
1029 } 1222 }
1030} 1223}
1031 1224
1032static void 1225static void
1033coro_destruct_perl (pTHX_ struct coro *coro) 1226destroy_perl (pTHX_ struct coro *coro)
1034{ 1227{
1035 SV *svf [9]; 1228 SV *svf [9];
1036 1229
1037 { 1230 {
1231 SV *old_current = SvRV (coro_current);
1038 struct coro *current = SvSTATE_current; 1232 struct coro *current = SvSTATE (old_current);
1039 1233
1040 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1234 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1041 1235
1042 save_perl (aTHX_ current); 1236 save_perl (aTHX_ current);
1237
1238 /* this will cause transfer_check to croak on block*/
1239 SvRV_set (coro_current, (SV *)coro->hv);
1240
1043 load_perl (aTHX_ coro); 1241 load_perl (aTHX_ coro);
1044 1242
1045 coro_unwind_stacks (aTHX); 1243 coro_unwind_stacks (aTHX);
1244
1245 /* restore swapped sv's */
1246 SWAP_SVS (coro);
1247
1046 coro_destruct_stacks (aTHX); 1248 coro_destruct_stacks (aTHX);
1047 1249
1048 // now save some sv's to be free'd later 1250 /* now save some sv's to be free'd later */
1049 svf [0] = GvSV (PL_defgv); 1251 svf [0] = GvSV (PL_defgv);
1050 svf [1] = (SV *)GvAV (PL_defgv); 1252 svf [1] = (SV *)GvAV (PL_defgv);
1051 svf [2] = GvSV (PL_errgv); 1253 svf [2] = GvSV (PL_errgv);
1052 svf [3] = (SV *)PL_defoutgv; 1254 svf [3] = (SV *)PL_defoutgv;
1053 svf [4] = PL_rs; 1255 svf [4] = PL_rs;
… …
1055 svf [6] = (SV *)GvHV (PL_hintgv); 1257 svf [6] = (SV *)GvHV (PL_hintgv);
1056 svf [7] = PL_diehook; 1258 svf [7] = PL_diehook;
1057 svf [8] = PL_warnhook; 1259 svf [8] = PL_warnhook;
1058 assert (9 == sizeof (svf) / sizeof (*svf)); 1260 assert (9 == sizeof (svf) / sizeof (*svf));
1059 1261
1262 SvRV_set (coro_current, old_current);
1263
1060 load_perl (aTHX_ current); 1264 load_perl (aTHX_ current);
1061 } 1265 }
1062 1266
1063 { 1267 {
1064 unsigned int i; 1268 unsigned int i;
… …
1071 SvREFCNT_dec (coro->invoke_cb); 1275 SvREFCNT_dec (coro->invoke_cb);
1072 SvREFCNT_dec (coro->invoke_av); 1276 SvREFCNT_dec (coro->invoke_av);
1073 } 1277 }
1074} 1278}
1075 1279
1076INLINE void 1280ecb_inline void
1077free_coro_mortal (pTHX) 1281free_coro_mortal (pTHX)
1078{ 1282{
1079 if (expect_true (coro_mortal)) 1283 if (ecb_expect_true (coro_mortal))
1080 { 1284 {
1081 SvREFCNT_dec (coro_mortal); 1285 SvREFCNT_dec ((SV *)coro_mortal);
1082 coro_mortal = 0; 1286 coro_mortal = 0;
1083 } 1287 }
1084} 1288}
1085 1289
1086static int 1290static int
… …
1219 1423
1220 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1424 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1221} 1425}
1222 1426
1223/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1427/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1224static void NOINLINE 1428static void ecb_noinline
1225cctx_prepare (pTHX) 1429cctx_prepare (pTHX)
1226{ 1430{
1227 PL_top_env = &PL_start_env; 1431 PL_top_env = &PL_start_env;
1228 1432
1229 if (cctx_current->flags & CC_TRACE) 1433 if (cctx_current->flags & CC_TRACE)
… …
1240 slf_frame.prepare = slf_prepare_set_stacklevel; 1444 slf_frame.prepare = slf_prepare_set_stacklevel;
1241 slf_frame.check = slf_check_set_stacklevel; 1445 slf_frame.check = slf_check_set_stacklevel;
1242} 1446}
1243 1447
1244/* the tail of transfer: execute stuff we can only do after a transfer */ 1448/* the tail of transfer: execute stuff we can only do after a transfer */
1245INLINE void 1449ecb_inline void
1246transfer_tail (pTHX) 1450transfer_tail (pTHX)
1247{ 1451{
1248 free_coro_mortal (aTHX); 1452 free_coro_mortal (aTHX);
1453}
1454
1455/* try to exit the same way perl's main function would do */
1456/* we do not bother resetting the environment or other things *7
1457/* that are not, uhm, essential */
1458/* this obviously also doesn't work when perl is embedded */
1459static void ecb_noinline ecb_cold
1460perlish_exit (pTHX)
1461{
1462 int exitstatus = perl_destruct (PL_curinterp);
1463 perl_free (PL_curinterp);
1464 exit (exitstatus);
1249} 1465}
1250 1466
1251/* 1467/*
1252 * this is a _very_ stripped down perl interpreter ;) 1468 * this is a _very_ stripped down perl interpreter ;)
1253 */ 1469 */
… …
1282 */ 1498 */
1283 1499
1284 /* 1500 /*
1285 * If perl-run returns we assume exit() was being called or the coro 1501 * If perl-run returns we assume exit() was being called or the coro
1286 * fell off the end, which seems to be the only valid (non-bug) 1502 * fell off the end, which seems to be the only valid (non-bug)
1287 * reason for perl_run to return. We try to exit by jumping to the 1503 * reason for perl_run to return. We try to mimic whatever perl is normally
1288 * bootstrap-time "top" top_env, as we cannot restore the "main" 1504 * doing in that case. YMMV.
1289 * coroutine as Coro has no such concept.
1290 * This actually isn't valid with the pthread backend, but OSes requiring
1291 * that backend are too broken to do it in a standards-compliant way.
1292 */ 1505 */
1293 PL_top_env = main_top_env; 1506 perlish_exit (aTHX);
1294 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1295 } 1507 }
1296} 1508}
1297 1509
1298static coro_cctx * 1510static coro_cctx *
1299cctx_new () 1511cctx_new (void)
1300{ 1512{
1301 coro_cctx *cctx; 1513 coro_cctx *cctx;
1302 1514
1303 ++cctx_count; 1515 ++cctx_count;
1304 New (0, cctx, 1, coro_cctx); 1516 New (0, cctx, 1, coro_cctx);
… …
1310 return cctx; 1522 return cctx;
1311} 1523}
1312 1524
1313/* create a new cctx only suitable as source */ 1525/* create a new cctx only suitable as source */
1314static coro_cctx * 1526static coro_cctx *
1315cctx_new_empty () 1527cctx_new_empty (void)
1316{ 1528{
1317 coro_cctx *cctx = cctx_new (); 1529 coro_cctx *cctx = cctx_new ();
1318 1530
1319 cctx->sptr = 0; 1531 cctx->stack.sptr = 0;
1320 coro_create (&cctx->cctx, 0, 0, 0, 0); 1532 coro_create (&cctx->cctx, 0, 0, 0, 0);
1321 1533
1322 return cctx; 1534 return cctx;
1323} 1535}
1324 1536
1325/* create a new cctx suitable as destination/running a perl interpreter */ 1537/* create a new cctx suitable as destination/running a perl interpreter */
1326static coro_cctx * 1538static coro_cctx *
1327cctx_new_run () 1539cctx_new_run (void)
1328{ 1540{
1329 coro_cctx *cctx = cctx_new (); 1541 coro_cctx *cctx = cctx_new ();
1330 void *stack_start;
1331 size_t stack_size;
1332 1542
1333#if HAVE_MMAP 1543 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1334 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1335 /* mmap supposedly does allocate-on-write for us */
1336 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1337
1338 if (cctx->sptr != (void *)-1)
1339 {
1340 #if CORO_STACKGUARD
1341 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1342 #endif
1343 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1344 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1345 cctx->flags |= CC_MAPPED;
1346 } 1544 {
1347 else
1348#endif
1349 {
1350 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1351 New (0, cctx->sptr, cctx_stacksize, long);
1352
1353 if (!cctx->sptr)
1354 {
1355 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1545 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1356 _exit (EXIT_FAILURE); 1546 _exit (EXIT_FAILURE);
1357 }
1358
1359 stack_start = cctx->sptr;
1360 stack_size = cctx->ssize;
1361 } 1547 }
1362 1548
1363 #if CORO_USE_VALGRIND
1364 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1365 #endif
1366
1367 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1549 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1368 1550
1369 return cctx; 1551 return cctx;
1370} 1552}
1371 1553
1372static void 1554static void
1373cctx_destroy (coro_cctx *cctx) 1555cctx_destroy (coro_cctx *cctx)
1374{ 1556{
1375 if (!cctx) 1557 if (!cctx)
1376 return; 1558 return;
1377 1559
1378 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1560 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1379 1561
1380 --cctx_count; 1562 --cctx_count;
1381 coro_destroy (&cctx->cctx); 1563 coro_destroy (&cctx->cctx);
1382 1564
1383 /* coro_transfer creates new, empty cctx's */ 1565 coro_stack_free (&cctx->stack);
1384 if (cctx->sptr)
1385 {
1386 #if CORO_USE_VALGRIND
1387 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1388 #endif
1389
1390#if HAVE_MMAP
1391 if (cctx->flags & CC_MAPPED)
1392 munmap (cctx->sptr, cctx->ssize);
1393 else
1394#endif
1395 Safefree (cctx->sptr);
1396 }
1397 1566
1398 Safefree (cctx); 1567 Safefree (cctx);
1399} 1568}
1400 1569
1401/* wether this cctx should be destructed */ 1570/* wether this cctx should be destructed */
1402#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1571#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1403 1572
1404static coro_cctx * 1573static coro_cctx *
1405cctx_get (pTHX) 1574cctx_get (pTHX)
1406{ 1575{
1407 while (expect_true (cctx_first)) 1576 while (ecb_expect_true (cctx_first))
1408 { 1577 {
1409 coro_cctx *cctx = cctx_first; 1578 coro_cctx *cctx = cctx_first;
1410 cctx_first = cctx->next; 1579 cctx_first = cctx->next;
1411 --cctx_idle; 1580 --cctx_idle;
1412 1581
1413 if (expect_true (!CCTX_EXPIRED (cctx))) 1582 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1414 return cctx; 1583 return cctx;
1415 1584
1416 cctx_destroy (cctx); 1585 cctx_destroy (cctx);
1417 } 1586 }
1418 1587
… …
1420} 1589}
1421 1590
1422static void 1591static void
1423cctx_put (coro_cctx *cctx) 1592cctx_put (coro_cctx *cctx)
1424{ 1593{
1425 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1594 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1426 1595
1427 /* free another cctx if overlimit */ 1596 /* free another cctx if overlimit */
1428 if (expect_false (cctx_idle >= cctx_max_idle)) 1597 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1429 { 1598 {
1430 coro_cctx *first = cctx_first; 1599 coro_cctx *first = cctx_first;
1431 cctx_first = first->next; 1600 cctx_first = first->next;
1432 --cctx_idle; 1601 --cctx_idle;
1433 1602
… …
1444static void 1613static void
1445transfer_check (pTHX_ struct coro *prev, struct coro *next) 1614transfer_check (pTHX_ struct coro *prev, struct coro *next)
1446{ 1615{
1447 /* TODO: throwing up here is considered harmful */ 1616 /* TODO: throwing up here is considered harmful */
1448 1617
1449 if (expect_true (prev != next)) 1618 if (ecb_expect_true (prev != next))
1450 { 1619 {
1451 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1620 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1452 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1621 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1453 1622
1454 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1623 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1455 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1624 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1456 1625
1457#if !PERL_VERSION_ATLEAST (5,10,0) 1626#if !PERL_VERSION_ATLEAST (5,10,0)
1458 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1627 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1459 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1628 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1460#endif 1629#endif
1461 } 1630 }
1462} 1631}
1463 1632
1464/* always use the TRANSFER macro */ 1633/* always use the TRANSFER macro */
1465static void NOINLINE /* noinline so we have a fixed stackframe */ 1634static void ecb_noinline /* noinline so we have a fixed stackframe */
1466transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1635transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1467{ 1636{
1468 dSTACKLEVEL; 1637 dSTACKLEVEL;
1469 1638
1470 /* sometimes transfer is only called to set idle_sp */ 1639 /* sometimes transfer is only called to set idle_sp */
1471 if (expect_false (!prev)) 1640 if (ecb_expect_false (!prev))
1472 { 1641 {
1473 cctx_current->idle_sp = STACKLEVEL; 1642 cctx_current->idle_sp = STACKLEVEL;
1474 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1643 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1475 } 1644 }
1476 else if (expect_true (prev != next)) 1645 else if (ecb_expect_true (prev != next))
1477 { 1646 {
1478 coro_cctx *cctx_prev; 1647 coro_cctx *cctx_prev;
1479 1648
1480 if (expect_false (prev->flags & CF_NEW)) 1649 if (ecb_expect_false (prev->flags & CF_NEW))
1481 { 1650 {
1482 /* create a new empty/source context */ 1651 /* create a new empty/source context */
1483 prev->flags &= ~CF_NEW; 1652 prev->flags &= ~CF_NEW;
1484 prev->flags |= CF_RUNNING; 1653 prev->flags |= CF_RUNNING;
1485 } 1654 }
… …
1488 next->flags |= CF_RUNNING; 1657 next->flags |= CF_RUNNING;
1489 1658
1490 /* first get rid of the old state */ 1659 /* first get rid of the old state */
1491 save_perl (aTHX_ prev); 1660 save_perl (aTHX_ prev);
1492 1661
1493 if (expect_false (next->flags & CF_NEW)) 1662 if (ecb_expect_false (next->flags & CF_NEW))
1494 { 1663 {
1495 /* need to start coroutine */ 1664 /* need to start coroutine */
1496 next->flags &= ~CF_NEW; 1665 next->flags &= ~CF_NEW;
1497 /* setup coroutine call */ 1666 /* setup coroutine call */
1498 coro_setup (aTHX_ next); 1667 init_perl (aTHX_ next);
1499 } 1668 }
1500 else 1669 else
1501 load_perl (aTHX_ next); 1670 load_perl (aTHX_ next);
1502 1671
1503 /* possibly untie and reuse the cctx */ 1672 /* possibly untie and reuse the cctx */
1504 if (expect_true ( 1673 if (ecb_expect_true (
1505 cctx_current->idle_sp == STACKLEVEL 1674 cctx_current->idle_sp == STACKLEVEL
1506 && !(cctx_current->flags & CC_TRACE) 1675 && !(cctx_current->flags & CC_TRACE)
1507 && !force_cctx 1676 && !force_cctx
1508 )) 1677 ))
1509 { 1678 {
1510 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1679 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1511 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1680 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1512 1681
1513 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1682 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1514 /* without this the next cctx_get might destroy the running cctx while still in use */ 1683 /* without this the next cctx_get might destroy the running cctx while still in use */
1515 if (expect_false (CCTX_EXPIRED (cctx_current))) 1684 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1516 if (expect_true (!next->cctx)) 1685 if (ecb_expect_true (!next->cctx))
1517 next->cctx = cctx_get (aTHX); 1686 next->cctx = cctx_get (aTHX);
1518 1687
1519 cctx_put (cctx_current); 1688 cctx_put (cctx_current);
1520 } 1689 }
1521 else 1690 else
1522 prev->cctx = cctx_current; 1691 prev->cctx = cctx_current;
1523 1692
1524 ++next->usecount; 1693 ++next->usecount;
1525 1694
1526 cctx_prev = cctx_current; 1695 cctx_prev = cctx_current;
1527 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1696 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1528 1697
1529 next->cctx = 0; 1698 next->cctx = 0;
1530 1699
1531 if (expect_false (cctx_prev != cctx_current)) 1700 if (ecb_expect_false (cctx_prev != cctx_current))
1532 { 1701 {
1533 cctx_prev->top_env = PL_top_env; 1702 cctx_prev->top_env = PL_top_env;
1534 PL_top_env = cctx_current->top_env; 1703 PL_top_env = cctx_current->top_env;
1535 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1704 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1536 } 1705 }
… …
1542#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1711#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1543#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1712#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1544 1713
1545/** high level stuff ********************************************************/ 1714/** high level stuff ********************************************************/
1546 1715
1716/* this function is actually Coro, not Coro::State, but we call it from here */
1717/* because it is convenient - but it hasn't been declared yet for that reason */
1547static int 1718static void
1719coro_call_on_destroy (pTHX_ struct coro *coro);
1720
1721static void
1548coro_state_destroy (pTHX_ struct coro *coro) 1722coro_state_destroy (pTHX_ struct coro *coro)
1549{ 1723{
1550 if (coro->flags & CF_DESTROYED) 1724 if (coro->flags & CF_ZOMBIE)
1551 return 0; 1725 return;
1552 1726
1553 if (coro->on_destroy && !PL_dirty)
1554 coro->on_destroy (aTHX_ coro); 1727 slf_destroy (aTHX_ coro);
1555 1728
1556 coro->flags |= CF_DESTROYED; 1729 coro->flags |= CF_ZOMBIE;
1557 1730
1558 if (coro->flags & CF_READY) 1731 if (coro->flags & CF_READY)
1559 { 1732 {
1560 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1733 /* reduce nready, as destroying a ready coro effectively unreadies it */
1561 /* alternative: look through all ready queues and remove the coro */ 1734 /* alternative: look through all ready queues and remove the coro */
1562 --coro_nready; 1735 --coro_nready;
1563 } 1736 }
1564 else 1737 else
1565 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1738 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1739
1740 if (coro->next) coro->next->prev = coro->prev;
1741 if (coro->prev) coro->prev->next = coro->next;
1742 if (coro == coro_first) coro_first = coro->next;
1566 1743
1567 if (coro->mainstack 1744 if (coro->mainstack
1568 && coro->mainstack != main_mainstack 1745 && coro->mainstack != main_mainstack
1569 && coro->slot 1746 && coro->slot
1570 && !PL_dirty) 1747 && !PL_dirty)
1571 coro_destruct_perl (aTHX_ coro); 1748 destroy_perl (aTHX_ coro);
1572 1749
1573 cctx_destroy (coro->cctx); 1750 cctx_destroy (coro->cctx);
1574 SvREFCNT_dec (coro->startcv); 1751 SvREFCNT_dec (coro->startcv);
1575 SvREFCNT_dec (coro->args); 1752 SvREFCNT_dec (coro->args);
1753 SvREFCNT_dec (coro->swap_sv);
1576 SvREFCNT_dec (CORO_THROW); 1754 SvREFCNT_dec (CORO_THROW);
1577 1755
1578 if (coro->next) coro->next->prev = coro->prev; 1756 coro_call_on_destroy (aTHX_ coro);
1579 if (coro->prev) coro->prev->next = coro->next;
1580 if (coro == coro_first) coro_first = coro->next;
1581 1757
1582 return 1; 1758 /* more destruction mayhem in coro_state_free */
1583} 1759}
1584 1760
1585static int 1761static int
1586coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1762coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1587{ 1763{
1588 struct coro *coro = (struct coro *)mg->mg_ptr; 1764 struct coro *coro = (struct coro *)mg->mg_ptr;
1589 mg->mg_ptr = 0; 1765 mg->mg_ptr = 0;
1590 1766
1591 coro->hv = 0;
1592
1593 if (--coro->refcnt < 0)
1594 {
1595 coro_state_destroy (aTHX_ coro); 1767 coro_state_destroy (aTHX_ coro);
1768 SvREFCNT_dec (coro->on_destroy);
1769 SvREFCNT_dec (coro->status);
1770
1596 Safefree (coro); 1771 Safefree (coro);
1597 }
1598 1772
1599 return 0; 1773 return 0;
1600} 1774}
1601 1775
1602static int 1776static int ecb_cold
1603coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1777coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1604{ 1778{
1605 struct coro *coro = (struct coro *)mg->mg_ptr; 1779 /* called when perl clones the current process the slow way (windows process emulation) */
1606 1780 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1607 ++coro->refcnt; 1781 mg->mg_ptr = 0;
1782 mg->mg_virtual = 0;
1608 1783
1609 return 0; 1784 return 0;
1610} 1785}
1611 1786
1612static MGVTBL coro_state_vtbl = { 1787static MGVTBL coro_state_vtbl = {
… …
1637 TRANSFER (ta, 1); 1812 TRANSFER (ta, 1);
1638} 1813}
1639 1814
1640/** Coro ********************************************************************/ 1815/** Coro ********************************************************************/
1641 1816
1642INLINE void 1817ecb_inline void
1643coro_enq (pTHX_ struct coro *coro) 1818coro_enq (pTHX_ struct coro *coro)
1644{ 1819{
1645 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1820 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1646 1821
1647 SvREFCNT_inc_NN (coro->hv); 1822 SvREFCNT_inc_NN (coro->hv);
… …
1649 coro->next_ready = 0; 1824 coro->next_ready = 0;
1650 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1825 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1651 ready [1] = coro; 1826 ready [1] = coro;
1652} 1827}
1653 1828
1654INLINE struct coro * 1829ecb_inline struct coro *
1655coro_deq (pTHX) 1830coro_deq (pTHX)
1656{ 1831{
1657 int prio; 1832 int prio;
1658 1833
1659 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1834 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1712{ 1887{
1713 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1888 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1714} 1889}
1715 1890
1716/* expects to own a reference to next->hv */ 1891/* expects to own a reference to next->hv */
1717INLINE void 1892ecb_inline void
1718prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1893prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1719{ 1894{
1720 SV *prev_sv = SvRV (coro_current); 1895 SV *prev_sv = SvRV (coro_current);
1721 1896
1722 ta->prev = SvSTATE_hv (prev_sv); 1897 ta->prev = SvSTATE_hv (prev_sv);
… …
1735{ 1910{
1736 for (;;) 1911 for (;;)
1737 { 1912 {
1738 struct coro *next = coro_deq (aTHX); 1913 struct coro *next = coro_deq (aTHX);
1739 1914
1740 if (expect_true (next)) 1915 if (ecb_expect_true (next))
1741 { 1916 {
1742 /* cannot transfer to destroyed coros, skip and look for next */ 1917 /* cannot transfer to destroyed coros, skip and look for next */
1743 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1918 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1744 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1919 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1745 else 1920 else
1746 { 1921 {
1747 next->flags &= ~CF_READY; 1922 next->flags &= ~CF_READY;
1748 --coro_nready; 1923 --coro_nready;
… …
1755 { 1930 {
1756 /* nothing to schedule: call the idle handler */ 1931 /* nothing to schedule: call the idle handler */
1757 if (SvROK (sv_idle) 1932 if (SvROK (sv_idle)
1758 && SvOBJECT (SvRV (sv_idle))) 1933 && SvOBJECT (SvRV (sv_idle)))
1759 { 1934 {
1935 if (SvRV (sv_idle) == SvRV (coro_current))
1936 {
1937 require_pv ("Carp");
1938
1939 {
1940 dSP;
1941
1942 ENTER;
1943 SAVETMPS;
1944
1945 PUSHMARK (SP);
1946 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1947 PUTBACK;
1948 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1949
1950 FREETMPS;
1951 LEAVE;
1952 }
1953 }
1954
1760 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1955 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1761 api_ready (aTHX_ SvRV (sv_idle)); 1956 api_ready (aTHX_ SvRV (sv_idle));
1762 --coro_nready; 1957 --coro_nready;
1763 } 1958 }
1764 else 1959 else
1765 { 1960 {
1961 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1766 dSP; 1962 dSP;
1767 1963
1768 ENTER; 1964 ENTER;
1769 SAVETMPS; 1965 SAVETMPS;
1770 1966
… …
1777 } 1973 }
1778 } 1974 }
1779 } 1975 }
1780} 1976}
1781 1977
1782INLINE void 1978ecb_inline void
1783prepare_cede (pTHX_ struct coro_transfer_args *ta) 1979prepare_cede (pTHX_ struct coro_transfer_args *ta)
1784{ 1980{
1785 api_ready (aTHX_ coro_current); 1981 api_ready (aTHX_ coro_current);
1786 prepare_schedule (aTHX_ ta); 1982 prepare_schedule (aTHX_ ta);
1787} 1983}
1788 1984
1789INLINE void 1985ecb_inline void
1790prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1986prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1791{ 1987{
1792 SV *prev = SvRV (coro_current); 1988 SV *prev = SvRV (coro_current);
1793 1989
1794 if (coro_nready) 1990 if (coro_nready)
… …
1824{ 2020{
1825 struct coro_transfer_args ta; 2021 struct coro_transfer_args ta;
1826 2022
1827 prepare_cede (aTHX_ &ta); 2023 prepare_cede (aTHX_ &ta);
1828 2024
1829 if (expect_true (ta.prev != ta.next)) 2025 if (ecb_expect_true (ta.prev != ta.next))
1830 { 2026 {
1831 TRANSFER (ta, 1); 2027 TRANSFER (ta, 1);
1832 return 1; 2028 return 1;
1833 } 2029 }
1834 else 2030 else
… …
1877 coro->slot->runops = RUNOPS_DEFAULT; 2073 coro->slot->runops = RUNOPS_DEFAULT;
1878 } 2074 }
1879} 2075}
1880 2076
1881static void 2077static void
2078coro_push_av (pTHX_ AV *av, I32 gimme_v)
2079{
2080 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2081 {
2082 dSP;
2083
2084 if (gimme_v == G_SCALAR)
2085 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2086 else
2087 {
2088 int i;
2089 EXTEND (SP, AvFILLp (av) + 1);
2090
2091 for (i = 0; i <= AvFILLp (av); ++i)
2092 PUSHs (AvARRAY (av)[i]);
2093 }
2094
2095 PUTBACK;
2096 }
2097}
2098
2099static void
2100coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2101{
2102 if (!coro->on_destroy)
2103 coro->on_destroy = newAV ();
2104
2105 av_push (coro->on_destroy, cb);
2106}
2107
2108static void
2109slf_destroy_join (pTHX_ struct CoroSLF *frame)
2110{
2111 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2112}
2113
2114static int
2115slf_check_join (pTHX_ struct CoroSLF *frame)
2116{
2117 struct coro *coro = (struct coro *)frame->data;
2118
2119 if (!coro->status)
2120 return 1;
2121
2122 frame->destroy = 0;
2123
2124 coro_push_av (aTHX_ coro->status, GIMME_V);
2125
2126 SvREFCNT_dec ((SV *)coro->hv);
2127
2128 return 0;
2129}
2130
2131static void
2132slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2133{
2134 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2135
2136 if (items > 1)
2137 croak ("join called with too many arguments");
2138
2139 if (coro->status)
2140 frame->prepare = prepare_nop;
2141 else
2142 {
2143 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2144 frame->prepare = prepare_schedule;
2145 }
2146
2147 frame->check = slf_check_join;
2148 frame->destroy = slf_destroy_join;
2149 frame->data = (void *)coro;
2150 SvREFCNT_inc (coro->hv);
2151}
2152
2153static void
1882coro_call_on_destroy (pTHX_ struct coro *coro) 2154coro_call_on_destroy (pTHX_ struct coro *coro)
1883{ 2155{
1884 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2156 AV *od = coro->on_destroy;
1885 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1886 2157
1887 if (on_destroyp) 2158 if (!od)
1888 { 2159 return;
1889 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1890 2160
2161 coro->on_destroy = 0;
2162 sv_2mortal ((SV *)od);
2163
1891 while (AvFILLp (on_destroy) >= 0) 2164 while (AvFILLp (od) >= 0)
2165 {
2166 SV *cb = sv_2mortal (av_pop (od));
2167
2168 /* coro hv's (and only hv's at the moment) are supported as well */
2169 if (SvSTATEhv_p (aTHX_ cb))
2170 api_ready (aTHX_ cb);
2171 else
1892 { 2172 {
1893 dSP; /* don't disturb outer sp */ 2173 dSP; /* don't disturb outer sp */
1894 SV *cb = av_pop (on_destroy);
1895
1896 PUSHMARK (SP); 2174 PUSHMARK (SP);
1897 2175
1898 if (statusp) 2176 if (coro->status)
1899 { 2177 {
1900 int i; 2178 PUTBACK;
1901 AV *status = (AV *)SvRV (*statusp); 2179 coro_push_av (aTHX_ coro->status, G_ARRAY);
1902 EXTEND (SP, AvFILLp (status) + 1); 2180 SPAGAIN;
1903
1904 for (i = 0; i <= AvFILLp (status); ++i)
1905 PUSHs (AvARRAY (status)[i]);
1906 } 2181 }
1907 2182
1908 PUTBACK; 2183 PUTBACK;
1909 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2184 call_sv (cb, G_VOID | G_DISCARD);
1910 } 2185 }
1911 } 2186 }
1912} 2187}
1913 2188
1914static void 2189static void
1915slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2190coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1916{ 2191{
2192 AV *av;
2193
2194 if (coro->status)
2195 {
2196 av = coro->status;
2197 av_clear (av);
2198 }
2199 else
2200 av = coro->status = newAV ();
2201
2202 /* items are actually not so common, so optimise for this case */
2203 if (items)
2204 {
1917 int i; 2205 int i;
1918 HV *hv = (HV *)SvRV (coro_current);
1919 AV *av = newAV ();
1920 2206
1921 av_extend (av, items - 1); 2207 av_extend (av, items - 1);
2208
1922 for (i = 0; i < items; ++i) 2209 for (i = 0; i < items; ++i)
1923 av_push (av, SvREFCNT_inc_NN (arg [i])); 2210 av_push (av, SvREFCNT_inc_NN (arg [i]));
2211 }
2212}
1924 2213
1925 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2214static void
1926 2215slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2216{
1927 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2217 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1928 api_ready (aTHX_ sv_manager); 2218 api_ready (aTHX_ sv_manager);
1929 2219
1930 frame->prepare = prepare_schedule; 2220 frame->prepare = prepare_schedule;
1931 frame->check = slf_check_repeat; 2221 frame->check = slf_check_repeat;
1932 2222
1933 /* as a minor optimisation, we could unwind all stacks here */ 2223 /* as a minor optimisation, we could unwind all stacks here */
1934 /* but that puts extra pressure on pp_slf, and is not worth much */ 2224 /* but that puts extra pressure on pp_slf, and is not worth much */
1935 /*coro_unwind_stacks (aTHX);*/ 2225 /*coro_unwind_stacks (aTHX);*/
2226}
2227
2228static void
2229slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2230{
2231 HV *coro_hv = (HV *)SvRV (coro_current);
2232
2233 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2234 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2235}
2236
2237static void
2238slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2239{
2240 HV *coro_hv;
2241 struct coro *coro;
2242
2243 if (items <= 0)
2244 croak ("Coro::cancel called without coro object,");
2245
2246 coro = SvSTATE (arg [0]);
2247 coro_hv = coro->hv;
2248
2249 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2250
2251 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2252 {
2253 /* coro currently busy cancelling something, so just notify it */
2254 coro->slf_frame.data = (void *)coro;
2255
2256 frame->prepare = prepare_nop;
2257 frame->check = slf_check_nop;
2258 }
2259 else if (coro_hv == (HV *)SvRV (coro_current))
2260 {
2261 /* cancelling the current coro is allowed, and equals terminate */
2262 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2263 }
2264 else
2265 {
2266 struct coro *self = SvSTATE_current;
2267
2268 if (!self)
2269 croak ("Coro::cancel called outside of thread content,");
2270
2271 /* otherwise we cancel directly, purely for speed reasons
2272 * unfortunately, this requires some magic trickery, as
2273 * somebody else could cancel us, so we have to fight the cancellation.
2274 * this is ugly, and hopefully fully worth the extra speed.
2275 * besides, I can't get the slow-but-safe version working...
2276 */
2277 slf_frame.data = 0;
2278 self->flags |= CF_NOCANCEL;
2279 coro_state_destroy (aTHX_ coro);
2280 self->flags &= ~CF_NOCANCEL;
2281
2282 if (slf_frame.data)
2283 {
2284 /* while we were busy we have been cancelled, so terminate */
2285 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2286 }
2287 else
2288 {
2289 frame->prepare = prepare_nop;
2290 frame->check = slf_check_nop;
2291 }
2292 }
2293}
2294
2295static int
2296slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2297{
2298 frame->prepare = 0;
2299 coro_unwind_stacks (aTHX);
2300
2301 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2302
2303 return 1;
2304}
2305
2306static int
2307safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2308{
2309 if (coro->cctx)
2310 croak ("coro inside C callback, unable to cancel at this time, caught");
2311
2312 if (coro->flags & CF_NEW)
2313 {
2314 coro_set_status (aTHX_ coro, arg, items);
2315 coro_state_destroy (aTHX_ coro);
2316 }
2317 else
2318 {
2319 if (!coro->slf_frame.prepare)
2320 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2321
2322 slf_destroy (aTHX_ coro);
2323
2324 coro_set_status (aTHX_ coro, arg, items);
2325 coro->slf_frame.prepare = prepare_nop;
2326 coro->slf_frame.check = slf_check_safe_cancel;
2327
2328 api_ready (aTHX_ (SV *)coro->hv);
2329 }
2330
2331 return 1;
1936} 2332}
1937 2333
1938/*****************************************************************************/ 2334/*****************************************************************************/
1939/* async pool handler */ 2335/* async pool handler */
1940 2336
… …
1971slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2367slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1972{ 2368{
1973 HV *hv = (HV *)SvRV (coro_current); 2369 HV *hv = (HV *)SvRV (coro_current);
1974 struct coro *coro = SvSTATE_hv ((SV *)hv); 2370 struct coro *coro = SvSTATE_hv ((SV *)hv);
1975 2371
1976 if (expect_true (coro->saved_deffh)) 2372 if (ecb_expect_true (coro->saved_deffh))
1977 { 2373 {
1978 /* subsequent iteration */ 2374 /* subsequent iteration */
1979 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2375 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1980 coro->saved_deffh = 0; 2376 coro->saved_deffh = 0;
1981 2377
1982 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2378 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1983 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2379 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1984 { 2380 {
1985 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2381 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1986 coro->invoke_av = newAV (); 2382 return;
1987
1988 frame->prepare = prepare_nop;
1989 } 2383 }
1990 else 2384 else
1991 { 2385 {
1992 av_clear (GvAV (PL_defgv)); 2386 av_clear (GvAV (PL_defgv));
1993 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2387 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2043 2437
2044static int 2438static int
2045slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2439slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2046{ 2440{
2047 SV *data = (SV *)frame->data; 2441 SV *data = (SV *)frame->data;
2048 2442
2049 if (CORO_THROW) 2443 if (CORO_THROW)
2050 return 0; 2444 return 0;
2051 2445
2052 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2446 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2053 return 1; 2447 return 1;
… …
2089 cb = sv_2mortal (coro->rouse_cb); 2483 cb = sv_2mortal (coro->rouse_cb);
2090 coro->rouse_cb = 0; 2484 coro->rouse_cb = 0;
2091 } 2485 }
2092 2486
2093 if (!SvROK (cb) 2487 if (!SvROK (cb)
2094 || SvTYPE (SvRV (cb)) != SVt_PVCV 2488 || SvTYPE (SvRV (cb)) != SVt_PVCV
2095 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2489 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2096 croak ("Coro::rouse_wait called with illegal callback argument,"); 2490 croak ("Coro::rouse_wait called with illegal callback argument,");
2097 2491
2098 { 2492 {
2099 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2493 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2216static void 2610static void
2217slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2611slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2218{ 2612{
2219 frame->prepare = prepare_cede_notself; 2613 frame->prepare = prepare_cede_notself;
2220 frame->check = slf_check_nop; 2614 frame->check = slf_check_nop;
2615}
2616
2617/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2618static void
2619slf_destroy (pTHX_ struct coro *coro)
2620{
2621 struct CoroSLF frame = coro->slf_frame;
2622
2623 /*
2624 * The on_destroy below most likely is from an SLF call.
2625 * Since by definition the SLF call will not finish when we destroy
2626 * the coro, we will have to force-finish it here, otherwise
2627 * cleanup functions cannot call SLF functions.
2628 */
2629 coro->slf_frame.prepare = 0;
2630
2631 /* this callback is reserved for slf functions needing to do cleanup */
2632 if (frame.destroy && frame.prepare && !PL_dirty)
2633 frame.destroy (aTHX_ &frame);
2221} 2634}
2222 2635
2223/* 2636/*
2224 * these not obviously related functions are all rolled into one 2637 * these not obviously related functions are all rolled into one
2225 * function to increase chances that they all will call transfer with the same 2638 * function to increase chances that they all will call transfer with the same
… …
2232 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2645 I32 checkmark; /* mark SP to see how many elements check has pushed */
2233 2646
2234 /* set up the slf frame, unless it has already been set-up */ 2647 /* set up the slf frame, unless it has already been set-up */
2235 /* the latter happens when a new coro has been started */ 2648 /* the latter happens when a new coro has been started */
2236 /* or when a new cctx was attached to an existing coroutine */ 2649 /* or when a new cctx was attached to an existing coroutine */
2237 if (expect_true (!slf_frame.prepare)) 2650 if (ecb_expect_true (!slf_frame.prepare))
2238 { 2651 {
2239 /* first iteration */ 2652 /* first iteration */
2240 dSP; 2653 dSP;
2241 SV **arg = PL_stack_base + TOPMARK + 1; 2654 SV **arg = PL_stack_base + TOPMARK + 1;
2242 int items = SP - arg; /* args without function object */ 2655 int items = SP - arg; /* args without function object */
… …
2283 while (slf_frame.check (aTHX_ &slf_frame)); 2696 while (slf_frame.check (aTHX_ &slf_frame));
2284 2697
2285 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2698 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2286 2699
2287 /* exception handling */ 2700 /* exception handling */
2288 if (expect_false (CORO_THROW)) 2701 if (ecb_expect_false (CORO_THROW))
2289 { 2702 {
2290 SV *exception = sv_2mortal (CORO_THROW); 2703 SV *exception = sv_2mortal (CORO_THROW);
2291 2704
2292 CORO_THROW = 0; 2705 CORO_THROW = 0;
2293 sv_setsv (ERRSV, exception); 2706 sv_setsv (ERRSV, exception);
2294 croak (0); 2707 croak (0);
2295 } 2708 }
2296 2709
2297 /* return value handling - mostly like entersub */ 2710 /* return value handling - mostly like entersub */
2298 /* make sure we put something on the stack in scalar context */ 2711 /* make sure we put something on the stack in scalar context */
2299 if (GIMME_V == G_SCALAR) 2712 if (GIMME_V == G_SCALAR
2713 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2300 { 2714 {
2301 dSP; 2715 dSP;
2302 SV **bot = PL_stack_base + checkmark; 2716 SV **bot = PL_stack_base + checkmark;
2303 2717
2304 if (sp == bot) /* too few, push undef */ 2718 if (sp == bot) /* too few, push undef */
2305 bot [1] = &PL_sv_undef; 2719 bot [1] = &PL_sv_undef;
2306 else if (sp != bot + 1) /* too many, take last one */ 2720 else /* too many, take last one */
2307 bot [1] = *sp; 2721 bot [1] = *sp;
2308 2722
2309 SP = bot + 1; 2723 SP = bot + 1;
2310 2724
2311 PUTBACK; 2725 PUTBACK;
… …
2344 if (PL_op->op_flags & OPf_STACKED) 2758 if (PL_op->op_flags & OPf_STACKED)
2345 { 2759 {
2346 if (items > slf_arga) 2760 if (items > slf_arga)
2347 { 2761 {
2348 slf_arga = items; 2762 slf_arga = items;
2349 free (slf_argv); 2763 Safefree (slf_argv);
2350 slf_argv = malloc (slf_arga * sizeof (SV *)); 2764 New (0, slf_argv, slf_arga, SV *);
2351 } 2765 }
2352 2766
2353 slf_argc = items; 2767 slf_argc = items;
2354 2768
2355 for (i = 0; i < items; ++i) 2769 for (i = 0; i < items; ++i)
… …
2418{ 2832{
2419 PerlIOBuf base; 2833 PerlIOBuf base;
2420 NV next, every; 2834 NV next, every;
2421} PerlIOCede; 2835} PerlIOCede;
2422 2836
2423static IV 2837static IV ecb_cold
2424PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2838PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2425{ 2839{
2426 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2840 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2427 2841
2428 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2842 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2429 self->next = nvtime () + self->every; 2843 self->next = nvtime () + self->every;
2430 2844
2431 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2845 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2432} 2846}
2433 2847
2434static SV * 2848static SV * ecb_cold
2435PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2849PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2436{ 2850{
2437 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2851 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2438 2852
2439 return newSVnv (self->every); 2853 return newSVnv (self->every);
… …
2551 SvREFCNT_dec (cb); 2965 SvREFCNT_dec (cb);
2552 } 2966 }
2553} 2967}
2554 2968
2555static void 2969static void
2556coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2970coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2557{ 2971{
2558 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2972 /* call $sem->adjust (0) to possibly wake up some other waiters */
2559 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2973 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2560} 2974}
2561 2975
2562static int 2976static int
2563slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2977slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2564{ 2978{
2565 AV *av = (AV *)frame->data; 2979 AV *av = (AV *)frame->data;
2566 SV *count_sv = AvARRAY (av)[0]; 2980 SV *count_sv = AvARRAY (av)[0];
2981 SV *coro_hv = SvRV (coro_current);
2982
2983 frame->destroy = 0;
2567 2984
2568 /* if we are about to throw, don't actually acquire the lock, just throw */ 2985 /* if we are about to throw, don't actually acquire the lock, just throw */
2569 if (CORO_THROW) 2986 if (ecb_expect_false (CORO_THROW))
2987 {
2988 /* we still might be responsible for the semaphore, so wake up others */
2989 coro_semaphore_adjust (aTHX_ av, 0);
2990
2570 return 0; 2991 return 0;
2992 }
2571 else if (SvIVX (count_sv) > 0) 2993 else if (SvIVX (count_sv) > 0)
2572 { 2994 {
2573 SvSTATE_current->on_destroy = 0;
2574
2575 if (acquire) 2995 if (acquire)
2576 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2996 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2577 else 2997 else
2578 coro_semaphore_adjust (aTHX_ av, 0); 2998 coro_semaphore_adjust (aTHX_ av, 0);
2579 2999
… …
2583 { 3003 {
2584 int i; 3004 int i;
2585 /* if we were woken up but can't down, we look through the whole */ 3005 /* if we were woken up but can't down, we look through the whole */
2586 /* waiters list and only add us if we aren't in there already */ 3006 /* waiters list and only add us if we aren't in there already */
2587 /* this avoids some degenerate memory usage cases */ 3007 /* this avoids some degenerate memory usage cases */
2588 3008 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2589 for (i = 1; i <= AvFILLp (av); ++i)
2590 if (AvARRAY (av)[i] == SvRV (coro_current)) 3009 if (AvARRAY (av)[i] == coro_hv)
2591 return 1; 3010 return 1;
2592 3011
2593 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3012 av_push (av, SvREFCNT_inc (coro_hv));
2594 return 1; 3013 return 1;
2595 } 3014 }
2596} 3015}
2597 3016
2598static int 3017static int
… …
2621 { 3040 {
2622 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3041 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2623 3042
2624 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3043 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2625 frame->prepare = prepare_schedule; 3044 frame->prepare = prepare_schedule;
2626
2627 /* to avoid race conditions when a woken-up coro gets terminated */ 3045 /* to avoid race conditions when a woken-up coro gets terminated */
2628 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3046 /* we arrange for a temporary on_destroy that calls adjust (0) */
2629 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3047 frame->destroy = coro_semaphore_destroy;
2630 } 3048 }
2631} 3049}
2632 3050
2633static void 3051static void
2634slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3052slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2716 { 3134 {
2717 SV *cb_cv = s_get_cv_croak (arg [1]); 3135 SV *cb_cv = s_get_cv_croak (arg [1]);
2718 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3136 av_push (av, SvREFCNT_inc_NN (cb_cv));
2719 3137
2720 if (SvIVX (AvARRAY (av)[0])) 3138 if (SvIVX (AvARRAY (av)[0]))
2721 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3139 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2722 3140
2723 frame->prepare = prepare_nop; 3141 frame->prepare = prepare_nop;
2724 frame->check = slf_check_nop; 3142 frame->check = slf_check_nop;
2725 } 3143 }
2726 else if (SvIVX (AvARRAY (av)[0])) 3144 else if (SvIVX (AvARRAY (av)[0]))
… …
2803 /* it quickly returns */ 3221 /* it quickly returns */
2804 if (CORO_THROW) 3222 if (CORO_THROW)
2805 return 0; 3223 return 0;
2806 3224
2807 /* one element that is an RV? repeat! */ 3225 /* one element that is an RV? repeat! */
2808 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3226 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2809 return 1; 3227 return 1;
2810 3228
2811 /* restore status */ 3229 /* restore status */
2812 { 3230 {
2813 SV *data_sv = av_pop (state); 3231 SV *data_sv = av_pop (state);
… …
2852 dSP; 3270 dSP;
2853 3271
2854 static SV *prio_cv; 3272 static SV *prio_cv;
2855 static SV *prio_sv; 3273 static SV *prio_sv;
2856 3274
2857 if (expect_false (!prio_cv)) 3275 if (ecb_expect_false (!prio_cv))
2858 { 3276 {
2859 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3277 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2860 prio_sv = newSViv (0); 3278 prio_sv = newSViv (0);
2861 } 3279 }
2862 3280
… …
2888 /* now call the AIO function - we assume our request is uncancelable */ 3306 /* now call the AIO function - we assume our request is uncancelable */
2889 PUTBACK; 3307 PUTBACK;
2890 call_sv ((SV *)req, G_VOID | G_DISCARD); 3308 call_sv ((SV *)req, G_VOID | G_DISCARD);
2891 } 3309 }
2892 3310
2893 /* now that the requets is going, we loop toll we have a result */ 3311 /* now that the request is going, we loop till we have a result */
2894 frame->data = (void *)state; 3312 frame->data = (void *)state;
2895 frame->prepare = prepare_schedule; 3313 frame->prepare = prepare_schedule;
2896 frame->check = slf_check_aio_req; 3314 frame->check = slf_check_aio_req;
2897} 3315}
2898 3316
… …
2910 3328
2911#if CORO_CLONE 3329#if CORO_CLONE
2912# include "clone.c" 3330# include "clone.c"
2913#endif 3331#endif
2914 3332
3333/*****************************************************************************/
3334
3335static SV *
3336coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3337{
3338 SV *coro_sv;
3339 struct coro *coro;
3340 MAGIC *mg;
3341 HV *hv;
3342 SV *cb;
3343 int i;
3344
3345 if (argc > 0)
3346 {
3347 cb = s_get_cv_croak (argv [0]);
3348
3349 if (!is_coro)
3350 {
3351 if (CvISXSUB (cb))
3352 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3353
3354 if (!CvROOT (cb))
3355 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3356 }
3357 }
3358
3359 Newz (0, coro, 1, struct coro);
3360 coro->args = newAV ();
3361 coro->flags = CF_NEW;
3362
3363 if (coro_first) coro_first->prev = coro;
3364 coro->next = coro_first;
3365 coro_first = coro;
3366
3367 coro->hv = hv = newHV ();
3368 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3369 mg->mg_flags |= MGf_DUP;
3370 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3371
3372 if (argc > 0)
3373 {
3374 av_extend (coro->args, argc + is_coro - 1);
3375
3376 if (is_coro)
3377 {
3378 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3379 cb = (SV *)cv_coro_run;
3380 }
3381
3382 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3383
3384 for (i = 1; i < argc; i++)
3385 av_push (coro->args, newSVsv (argv [i]));
3386 }
3387
3388 return coro_sv;
3389}
3390
3391#ifndef __cplusplus
3392ecb_cold XS(boot_Coro__State);
3393#endif
3394
3395#if CORO_JIT
3396
3397static void ecb_noinline ecb_cold
3398pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3399{
3400 dSP;
3401 AV *av = newAV ();
3402
3403 av_store (av, 3, newSVuv (d));
3404 av_store (av, 2, newSVuv (c));
3405 av_store (av, 1, newSVuv (b));
3406 av_store (av, 0, newSVuv (a));
3407
3408 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3409
3410 PUTBACK;
3411}
3412
3413static void ecb_noinline ecb_cold
3414jit_init (pTHX)
3415{
3416 dSP;
3417 SV *load, *save;
3418 char *map_base;
3419 char *load_ptr, *save_ptr;
3420 STRLEN load_len, save_len, map_len;
3421 int count;
3422
3423 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3424
3425 PUSHMARK (SP);
3426 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3427 #include "state.h"
3428 count = call_pv ("Coro::State::_jit", G_ARRAY);
3429 SPAGAIN;
3430
3431 save = POPs; save_ptr = SvPVbyte (save, save_len);
3432 load = POPs; load_ptr = SvPVbyte (load, load_len);
3433
3434 map_len = load_len + save_len + 16;
3435
3436 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3437
3438 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3439
3440 load_perl_slots = (load_save_perl_slots_type)map_base;
3441 memcpy (map_base, load_ptr, load_len);
3442
3443 map_base += (load_len + 15) & ~15;
3444
3445 save_perl_slots = (load_save_perl_slots_type)map_base;
3446 memcpy (map_base, save_ptr, save_len);
3447
3448 /* we are good citizens and try to make the page read-only, so the evil evil */
3449 /* hackers might have it a bit more difficult */
3450 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3451
3452 PUTBACK;
3453 eval_pv ("undef &Coro::State::_jit", 1);
3454}
3455
3456#endif
3457
2915MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3458MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2916 3459
2917PROTOTYPES: DISABLE 3460PROTOTYPES: DISABLE
2918 3461
2919BOOT: 3462BOOT:
2920{ 3463{
3464#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3465#include "state.h"
2921#ifdef USE_ITHREADS 3466#ifdef USE_ITHREADS
2922# if CORO_PTHREAD 3467# if CORO_PTHREAD
2923 coro_thx = PERL_GET_CONTEXT; 3468 coro_thx = PERL_GET_CONTEXT;
2924# endif 3469# endif
2925#endif 3470#endif
2926 BOOT_PAGESIZE; 3471 /* perl defines these to check for existance first, but why it doesn't */
3472 /* just create them one at init time is not clear to me, except for */
3473 /* programs trying to delete them, but... */
3474 /* anyway, we declare this as invalid and make sure they are initialised here */
3475 DEFSV;
3476 ERRSV;
2927 3477
2928 cctx_current = cctx_new_empty (); 3478 cctx_current = cctx_new_empty ();
2929 3479
2930 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3480 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2931 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3481 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
2971 coroapi.prepare_nop = prepare_nop; 3521 coroapi.prepare_nop = prepare_nop;
2972 coroapi.prepare_schedule = prepare_schedule; 3522 coroapi.prepare_schedule = prepare_schedule;
2973 coroapi.prepare_cede = prepare_cede; 3523 coroapi.prepare_cede = prepare_cede;
2974 coroapi.prepare_cede_notself = prepare_cede_notself; 3524 coroapi.prepare_cede_notself = prepare_cede_notself;
2975 3525
2976 { 3526 time_init (aTHX);
2977 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2978
2979 if (!svp) croak ("Time::HiRes is required");
2980 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2981
2982 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2983
2984 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
2985 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2986 }
2987 3527
2988 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3528 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3529#if CORO_JIT
3530 PUTBACK;
3531 jit_init (aTHX);
3532 SPAGAIN;
3533#endif
2989} 3534}
2990 3535
2991SV * 3536SV *
2992new (char *klass, ...) 3537new (SV *klass, ...)
2993 ALIAS: 3538 ALIAS:
2994 Coro::new = 1 3539 Coro::new = 1
2995 CODE: 3540 CODE:
2996{ 3541 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2997 struct coro *coro; 3542 OUTPUT:
2998 MAGIC *mg;
2999 HV *hv;
3000 SV *cb;
3001 int i;
3002
3003 if (items > 1)
3004 {
3005 cb = s_get_cv_croak (ST (1));
3006
3007 if (!ix)
3008 {
3009 if (CvISXSUB (cb))
3010 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3011
3012 if (!CvROOT (cb))
3013 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3014 }
3015 }
3016
3017 Newz (0, coro, 1, struct coro);
3018 coro->args = newAV ();
3019 coro->flags = CF_NEW;
3020
3021 if (coro_first) coro_first->prev = coro;
3022 coro->next = coro_first;
3023 coro_first = coro;
3024
3025 coro->hv = hv = newHV ();
3026 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3027 mg->mg_flags |= MGf_DUP;
3028 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3029
3030 if (items > 1)
3031 {
3032 av_extend (coro->args, items - 1 + ix - 1);
3033
3034 if (ix)
3035 {
3036 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3037 cb = (SV *)cv_coro_run;
3038 }
3039
3040 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3041
3042 for (i = 2; i < items; i++)
3043 av_push (coro->args, newSVsv (ST (i)));
3044 }
3045}
3046 OUTPUT:
3047 RETVAL 3543 RETVAL
3048 3544
3049void 3545void
3050transfer (...) 3546transfer (...)
3051 PROTOTYPE: $$ 3547 PROTOTYPE: $$
3052 CODE: 3548 CODE:
3053 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3549 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3054
3055bool
3056_destroy (SV *coro_sv)
3057 CODE:
3058 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3059 OUTPUT:
3060 RETVAL
3061
3062void
3063_exit (int code)
3064 PROTOTYPE: $
3065 CODE:
3066 _exit (code);
3067 3550
3068SV * 3551SV *
3069clone (Coro::State coro) 3552clone (Coro::State coro)
3070 CODE: 3553 CODE:
3071{ 3554{
… …
3126void 3609void
3127list () 3610list ()
3128 PROTOTYPE: 3611 PROTOTYPE:
3129 PPCODE: 3612 PPCODE:
3130{ 3613{
3131 struct coro *coro; 3614 struct coro *coro;
3132 for (coro = coro_first; coro; coro = coro->next) 3615 for (coro = coro_first; coro; coro = coro->next)
3133 if (coro->hv) 3616 if (coro->hv)
3134 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3617 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3135} 3618}
3136 3619
… …
3141 CODE: 3624 CODE:
3142{ 3625{
3143 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3626 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3144 { 3627 {
3145 struct coro *current = SvSTATE_current; 3628 struct coro *current = SvSTATE_current;
3629 struct CoroSLF slf_save;
3146 3630
3147 if (current != coro) 3631 if (current != coro)
3148 { 3632 {
3149 PUTBACK; 3633 PUTBACK;
3150 save_perl (aTHX_ current); 3634 save_perl (aTHX_ current);
3151 load_perl (aTHX_ coro); 3635 load_perl (aTHX_ coro);
3636 /* the coro is most likely in an active SLF call.
3637 * while not strictly required (the code we execute is
3638 * not allowed to call any SLF functions), it's cleaner
3639 * to reinitialise the slf_frame and restore it later.
3640 * This might one day allow us to actually do SLF calls
3641 * from code executed here.
3642 */
3643 slf_save = slf_frame;
3644 slf_frame.prepare = 0;
3152 SPAGAIN; 3645 SPAGAIN;
3153 } 3646 }
3154 3647
3155 PUSHSTACK; 3648 PUSHSTACK;
3156 3649
… …
3166 SPAGAIN; 3659 SPAGAIN;
3167 3660
3168 if (current != coro) 3661 if (current != coro)
3169 { 3662 {
3170 PUTBACK; 3663 PUTBACK;
3664 slf_frame = slf_save;
3171 save_perl (aTHX_ coro); 3665 save_perl (aTHX_ coro);
3172 load_perl (aTHX_ current); 3666 load_perl (aTHX_ current);
3173 SPAGAIN; 3667 SPAGAIN;
3174 } 3668 }
3175 } 3669 }
… …
3180 PROTOTYPE: $ 3674 PROTOTYPE: $
3181 ALIAS: 3675 ALIAS:
3182 is_ready = CF_READY 3676 is_ready = CF_READY
3183 is_running = CF_RUNNING 3677 is_running = CF_RUNNING
3184 is_new = CF_NEW 3678 is_new = CF_NEW
3185 is_destroyed = CF_DESTROYED 3679 is_destroyed = CF_ZOMBIE
3680 is_zombie = CF_ZOMBIE
3186 is_suspended = CF_SUSPENDED 3681 is_suspended = CF_SUSPENDED
3187 CODE: 3682 CODE:
3188 RETVAL = boolSV (coro->flags & ix); 3683 RETVAL = boolSV (coro->flags & ix);
3189 OUTPUT: 3684 OUTPUT:
3190 RETVAL 3685 RETVAL
3191 3686
3192void 3687void
3193throw (Coro::State self, SV *throw = &PL_sv_undef) 3688throw (SV *self, SV *exception = &PL_sv_undef)
3194 PROTOTYPE: $;$ 3689 PROTOTYPE: $;$
3195 CODE: 3690 CODE:
3196{ 3691{
3692 struct coro *coro = SvSTATE (self);
3197 struct coro *current = SvSTATE_current; 3693 struct coro *current = SvSTATE_current;
3198 SV **throwp = self == current ? &CORO_THROW : &self->except; 3694 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3199 SvREFCNT_dec (*throwp); 3695 SvREFCNT_dec (*exceptionp);
3200 SvGETMAGIC (throw); 3696 SvGETMAGIC (exception);
3201 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3697 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3698
3699 api_ready (aTHX_ self);
3202} 3700}
3203 3701
3204void 3702void
3205api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3703api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3206 PROTOTYPE: $;$ 3704 PROTOTYPE: $;$
… …
3261 3759
3262void 3760void
3263cancel (Coro::State self) 3761cancel (Coro::State self)
3264 CODE: 3762 CODE:
3265 coro_state_destroy (aTHX_ self); 3763 coro_state_destroy (aTHX_ self);
3266 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3267
3268 3764
3269SV * 3765SV *
3270enable_times (int enabled = enable_times) 3766enable_times (int enabled = enable_times)
3271 CODE: 3767 CODE:
3272{ 3768{
… …
3285 3781
3286void 3782void
3287times (Coro::State self) 3783times (Coro::State self)
3288 PPCODE: 3784 PPCODE:
3289{ 3785{
3290 struct coro *current = SvSTATE (coro_current); 3786 struct coro *current = SvSTATE (coro_current);
3291 3787
3292 if (expect_false (current == self)) 3788 if (ecb_expect_false (current == self))
3293 { 3789 {
3294 coro_times_update (); 3790 coro_times_update ();
3295 coro_times_add (SvSTATE (coro_current)); 3791 coro_times_add (SvSTATE (coro_current));
3296 } 3792 }
3297 3793
3298 EXTEND (SP, 2); 3794 EXTEND (SP, 2);
3299 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3795 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3300 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3796 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3301 3797
3302 if (expect_false (current == self)) 3798 if (ecb_expect_false (current == self))
3303 coro_times_sub (SvSTATE (coro_current)); 3799 coro_times_sub (SvSTATE (coro_current));
3304} 3800}
3801
3802void
3803swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3804 CODE:
3805{
3806 struct coro *current = SvSTATE_current;
3807
3808 if (current == coro)
3809 SWAP_SVS (current);
3810
3811 if (!coro->swap_sv)
3812 coro->swap_sv = newAV ();
3813
3814 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3815 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3816
3817 if (current == coro)
3818 SWAP_SVS (current);
3819}
3820
3305 3821
3306MODULE = Coro::State PACKAGE = Coro 3822MODULE = Coro::State PACKAGE = Coro
3307 3823
3308BOOT: 3824BOOT:
3309{ 3825{
3310 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3826 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3311 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3827 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3312 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3828 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3313 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3314 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3829 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3315 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3830 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3316 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3831 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3317 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3832 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3318 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3833 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3319 3834
3320 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3835 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3321 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3836 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3322 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3837 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3323 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3838 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3324 3839
3325 coro_stash = gv_stashpv ("Coro", TRUE); 3840 coro_stash = gv_stashpv ("Coro", TRUE);
3326 3841
3327 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3842 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3328 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3843 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
… …
3347 sv_setiv (sv, (IV)&coroapi); 3862 sv_setiv (sv, (IV)&coroapi);
3348 SvREADONLY_on (sv); 3863 SvREADONLY_on (sv);
3349 } 3864 }
3350} 3865}
3351 3866
3867SV *
3868async (...)
3869 PROTOTYPE: &@
3870 CODE:
3871 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3872 api_ready (aTHX_ RETVAL);
3873 OUTPUT:
3874 RETVAL
3875
3876void
3877_destroy (Coro::State coro)
3878 CODE:
3879 /* used by the manager thread */
3880 coro_state_destroy (aTHX_ coro);
3881
3882void
3883on_destroy (Coro::State coro, SV *cb)
3884 CODE:
3885 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3886
3887void
3888join (...)
3889 CODE:
3890 CORO_EXECUTE_SLF_XS (slf_init_join);
3891
3352void 3892void
3353terminate (...) 3893terminate (...)
3354 CODE: 3894 CODE:
3355 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3895 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3896
3897void
3898cancel (...)
3899 CODE:
3900 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3901
3902int
3903safe_cancel (Coro::State self, ...)
3904 C_ARGS: aTHX_ self, &ST (1), items - 1
3356 3905
3357void 3906void
3358schedule (...) 3907schedule (...)
3359 CODE: 3908 CODE:
3360 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3909 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3473 for (i = 1; i < items; ++i) 4022 for (i = 1; i < items; ++i)
3474 av_push (av, SvREFCNT_inc_NN (ST (i))); 4023 av_push (av, SvREFCNT_inc_NN (ST (i)));
3475 4024
3476 if ((SV *)hv == &PL_sv_undef) 4025 if ((SV *)hv == &PL_sv_undef)
3477 { 4026 {
3478 PUSHMARK (SP); 4027 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3479 EXTEND (SP, 2);
3480 PUSHs (sv_Coro);
3481 PUSHs ((SV *)cv_pool_handler);
3482 PUTBACK;
3483 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3484 SPAGAIN;
3485
3486 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4028 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4029 SvREFCNT_dec (sv);
3487 } 4030 }
3488 4031
3489 { 4032 {
3490 struct coro *coro = SvSTATE_hv (hv); 4033 struct coro *coro = SvSTATE_hv (hv);
3491 4034
… …
3523 on_leave = 1 4066 on_leave = 1
3524 PROTOTYPE: & 4067 PROTOTYPE: &
3525 CODE: 4068 CODE:
3526{ 4069{
3527 struct coro *coro = SvSTATE_current; 4070 struct coro *coro = SvSTATE_current;
3528 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4071 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3529 4072
3530 block = s_get_cv_croak (block); 4073 block = s_get_cv_croak (block);
3531 4074
3532 if (!*avp) 4075 if (!*avp)
3533 *avp = newAV (); 4076 *avp = newAV ();
… …
3553 4096
3554SV * 4097SV *
3555new (SV *klass, SV *count = 0) 4098new (SV *klass, SV *count = 0)
3556 CODE: 4099 CODE:
3557{ 4100{
3558 int semcnt = 1; 4101 int semcnt = 1;
3559 4102
3560 if (count) 4103 if (count)
3561 { 4104 {
3562 SvGETMAGIC (count); 4105 SvGETMAGIC (count);
3563 4106
… …
3623 XSRETURN_NO; 4166 XSRETURN_NO;
3624} 4167}
3625 4168
3626void 4169void
3627waiters (SV *self) 4170waiters (SV *self)
3628 PPCODE: 4171 PPCODE:
3629{ 4172{
3630 AV *av = (AV *)SvRV (self); 4173 AV *av = (AV *)SvRV (self);
3631 int wcount = AvFILLp (av) + 1 - 1; 4174 int wcount = AvFILLp (av) + 1 - 1;
3632 4175
3633 if (GIMME_V == G_SCALAR) 4176 if (GIMME_V == G_SCALAR)
… …
3642} 4185}
3643 4186
3644MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4187MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3645 4188
3646void 4189void
3647_may_delete (SV *sem, int count, int extra_refs) 4190_may_delete (SV *sem, int count, unsigned int extra_refs)
3648 PPCODE: 4191 PPCODE:
3649{ 4192{
3650 AV *av = (AV *)SvRV (sem); 4193 AV *av = (AV *)SvRV (sem);
3651 4194
3652 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4195 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3653 && AvFILLp (av) == 0 /* no waiters, just count */ 4196 && AvFILLp (av) == 0 /* no waiters, just count */
3654 && SvIV (AvARRAY (av)[0]) == count) 4197 && SvIV (AvARRAY (av)[0]) == count)
3655 XSRETURN_YES; 4198 XSRETURN_YES;
… …
3676 4219
3677void 4220void
3678broadcast (SV *self) 4221broadcast (SV *self)
3679 CODE: 4222 CODE:
3680{ 4223{
3681 AV *av = (AV *)SvRV (self); 4224 AV *av = (AV *)SvRV (self);
3682 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4225 coro_signal_wake (aTHX_ av, AvFILLp (av));
3683} 4226}
3684 4227
3685void 4228void
3686send (SV *self) 4229send (SV *self)
… …
3694 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4237 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3695} 4238}
3696 4239
3697IV 4240IV
3698awaited (SV *self) 4241awaited (SV *self)
3699 CODE: 4242 CODE:
3700 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4243 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3701 OUTPUT: 4244 OUTPUT:
3702 RETVAL 4245 RETVAL
3703 4246
3704 4247
… …
3709 4252
3710void 4253void
3711_schedule (...) 4254_schedule (...)
3712 CODE: 4255 CODE:
3713{ 4256{
3714 static int incede; 4257 static int incede;
3715 4258
3716 api_cede_notself (aTHX); 4259 api_cede_notself (aTHX);
3717 4260
3718 ++incede; 4261 ++incede;
3719 while (coro_nready >= incede && api_cede (aTHX)) 4262 while (coro_nready >= incede && api_cede (aTHX))
… …
3763 { 4306 {
3764 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4307 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3765 coro_old_pp_sselect = 0; 4308 coro_old_pp_sselect = 0;
3766 } 4309 }
3767 4310
4311MODULE = Coro::State PACKAGE = Coro::Util
3768 4312
4313void
4314_exit (int code)
4315 CODE:
4316 _exit (code);
4317
4318NV
4319time ()
4320 CODE:
4321 RETVAL = nvtime (aTHX);
4322 OUTPUT:
4323 RETVAL
4324
4325NV
4326gettimeofday ()
4327 PPCODE:
4328{
4329 UV tv [2];
4330 u2time (aTHX_ tv);
4331 EXTEND (SP, 2);
4332 PUSHs (sv_2mortal (newSVuv (tv [0])));
4333 PUSHs (sv_2mortal (newSVuv (tv [1])));
4334}
4335

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