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Comparing Coro/Coro/State.xs (file contents):
Revision 1.379 by root, Tue Jul 27 14:50:17 2010 UTC vs.
Revision 1.462 by root, Wed Jun 22 20:24:38 2016 UTC

1#define NDEBUG 1 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 */
2 5
3#include "libcoro/coro.c" 6#include "libcoro/coro.c"
4 7
5#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
6#define PERL_EXT 9#define PERL_EXT
… …
10#include "XSUB.h" 13#include "XSUB.h"
11#include "perliol.h" 14#include "perliol.h"
12 15
13#include "schmorp.h" 16#include "schmorp.h"
14 17
18#define ECB_NO_THREADS 1
19#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
15#include <stdio.h> 23#include <stdio.h>
16#include <errno.h> 24#include <errno.h>
17#include <assert.h> 25#include <assert.h>
18 26
27#ifndef SvREFCNT_dec_NN
28 #define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
29#endif
30
31#ifndef SvREFCNT_inc_NN
32 #define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
33#endif
34
19#ifndef SVs_PADSTALE 35#ifndef SVs_PADSTALE
20# define SVs_PADSTALE 0 36# define SVs_PADSTALE 0
21#endif 37#endif
22 38
23#ifdef WIN32 39#ifdef PadARRAY
40# define NEWPADAPI 1
41# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
42#else
43typedef AV PADNAMELIST;
44# if !PERL_VERSION_ATLEAST(5,8,0)
45typedef AV PADLIST;
46typedef AV PAD;
47# endif
48# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
49# define PadlistMAX(pl) AvFILLp (pl)
50# define PadlistNAMES(pl) (*PadlistARRAY (pl))
51# define PadARRAY AvARRAY
52# define PadMAX AvFILLp
53# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
54#endif
55#ifndef PadnamelistREFCNT
56# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
57#endif
58#ifndef PadnamelistREFCNT_dec
59# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
60#endif
61
62/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
63/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
64#if PERL_VERSION_ATLEAST(5,19,0)
65# define SVt_BIND SVt_IV
66#endif
67
68#if defined(_WIN32)
69# undef HAS_GETTIMEOFDAY
24# undef setjmp 70# undef setjmp
25# undef longjmp 71# undef longjmp
26# undef _exit 72# undef _exit
27# define setjmp _setjmp /* deep magic */ 73# define setjmp _setjmp /* deep magic */
28#else 74#else
29# include <inttypes.h> /* most portable stdint.h */ 75# include <inttypes.h> /* most portable stdint.h */
30#endif 76#endif
31 77
32#ifdef HAVE_MMAP
33# include <unistd.h>
34# include <sys/mman.h>
35# ifndef MAP_ANONYMOUS
36# ifdef MAP_ANON
37# define MAP_ANONYMOUS MAP_ANON
38# else
39# undef HAVE_MMAP
40# endif
41# endif
42# include <limits.h>
43# ifndef PAGESIZE
44# define PAGESIZE pagesize
45# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
46static long pagesize;
47# else
48# define BOOT_PAGESIZE (void)0
49# endif
50#else
51# define PAGESIZE 0
52# define BOOT_PAGESIZE (void)0
53#endif
54
55#if CORO_USE_VALGRIND
56# include <valgrind/valgrind.h>
57#endif
58
59/* the maximum number of idle cctx that will be pooled */ 78/* the maximum number of idle cctx that will be pooled */
60static int cctx_max_idle = 4; 79static int cctx_max_idle = 4;
61 80
62#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 81#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
63# undef CORO_STACKGUARD 82# define HAS_SCOPESTACK_NAME 1
64#endif
65
66#ifndef CORO_STACKGUARD
67# define CORO_STACKGUARD 0
68#endif 83#endif
69 84
70/* prefer perl internal functions over our own? */ 85/* prefer perl internal functions over our own? */
71#ifndef CORO_PREFER_PERL_FUNCTIONS 86#ifndef CORO_PREFER_PERL_FUNCTIONS
72# define CORO_PREFER_PERL_FUNCTIONS 0 87# define CORO_PREFER_PERL_FUNCTIONS 0
… …
82# define STACKLEVEL ((void *)&stacklevel) 97# define STACKLEVEL ((void *)&stacklevel)
83#endif 98#endif
84 99
85#define IN_DESTRUCT PL_dirty 100#define IN_DESTRUCT PL_dirty
86 101
87#if __GNUC__ >= 3
88# define attribute(x) __attribute__(x)
89# define expect(expr,value) __builtin_expect ((expr), (value))
90# define INLINE static inline
91#else
92# define attribute(x)
93# define expect(expr,value) (expr)
94# define INLINE static
95#endif
96
97#define expect_false(expr) expect ((expr) != 0, 0)
98#define expect_true(expr) expect ((expr) != 0, 1)
99
100#define NOINLINE attribute ((noinline))
101
102#include "CoroAPI.h" 102#include "CoroAPI.h"
103#define GCoroAPI (&coroapi) /* very sneaky */ 103#define GCoroAPI (&coroapi) /* very sneaky */
104 104
105#ifdef USE_ITHREADS 105#ifdef USE_ITHREADS
106# if CORO_PTHREAD 106# if CORO_PTHREAD
… …
122static void (*u2time)(pTHX_ UV ret[2]); 122static void (*u2time)(pTHX_ UV ret[2]);
123 123
124/* we hijack an hopefully unused CV flag for our purposes */ 124/* we hijack an hopefully unused CV flag for our purposes */
125#define CVf_SLF 0x4000 125#define CVf_SLF 0x4000
126static OP *pp_slf (pTHX); 126static OP *pp_slf (pTHX);
127static void slf_destroy (pTHX_ struct coro *coro);
127 128
128static U32 cctx_gen; 129static U32 cctx_gen;
129static size_t cctx_stacksize = CORO_STACKSIZE; 130static size_t cctx_stacksize = CORO_STACKSIZE;
130static struct CoroAPI coroapi; 131static struct CoroAPI coroapi;
131static AV *main_mainstack; /* used to differentiate between $main and others */ 132static AV *main_mainstack; /* used to differentiate between $main and others */
… …
139 140
140static GV *irsgv; /* $/ */ 141static GV *irsgv; /* $/ */
141static GV *stdoutgv; /* *STDOUT */ 142static GV *stdoutgv; /* *STDOUT */
142static SV *rv_diehook; 143static SV *rv_diehook;
143static SV *rv_warnhook; 144static SV *rv_warnhook;
144static HV *hv_sig; /* %SIG */
145 145
146/* async_pool helper stuff */ 146/* async_pool helper stuff */
147static SV *sv_pool_rss; 147static SV *sv_pool_rss;
148static SV *sv_pool_size; 148static SV *sv_pool_size;
149static SV *sv_async_pool_idle; /* description string */ 149static SV *sv_async_pool_idle; /* description string */
… …
161static char times_valid; 161static char times_valid;
162 162
163static struct coro_cctx *cctx_first; 163static struct coro_cctx *cctx_first;
164static int cctx_count, cctx_idle; 164static int cctx_count, cctx_idle;
165 165
166enum { 166enum
167{
167 CC_MAPPED = 0x01, 168 CC_MAPPED = 0x01,
168 CC_NOREUSE = 0x02, /* throw this away after tracing */ 169 CC_NOREUSE = 0x02, /* throw this away after tracing */
169 CC_TRACE = 0x04, 170 CC_TRACE = 0x04,
170 CC_TRACE_SUB = 0x08, /* trace sub calls */ 171 CC_TRACE_SUB = 0x08, /* trace sub calls */
171 CC_TRACE_LINE = 0x10, /* trace each statement */ 172 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
176typedef struct coro_cctx 177typedef struct coro_cctx
177{ 178{
178 struct coro_cctx *next; 179 struct coro_cctx *next;
179 180
180 /* the stack */ 181 /* the stack */
181 void *sptr; 182 struct coro_stack stack;
182 size_t ssize;
183 183
184 /* cpu state */ 184 /* cpu state */
185 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 185 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
186#ifndef NDEBUG
186 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 187 JMPENV *idle_te; /* same as idle_sp, but for top_env */
188#endif
187 JMPENV *top_env; 189 JMPENV *top_env;
188 coro_context cctx; 190 coro_context cctx;
189 191
190 U32 gen; 192 U32 gen;
191#if CORO_USE_VALGRIND 193#if CORO_USE_VALGRIND
192 int valgrind_id; 194 int valgrind_id;
193#endif 195#endif
194 unsigned char flags; 196 unsigned char flags;
195} coro_cctx; 197} coro_cctx;
196 198
197coro_cctx *cctx_current; /* the currently running cctx */ 199static coro_cctx *cctx_current; /* the currently running cctx */
198 200
199/*****************************************************************************/ 201/*****************************************************************************/
200 202
203static MGVTBL coro_state_vtbl;
204
201enum { 205enum
206{
202 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
203 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
204 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
205 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 210 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
206 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 211 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
212 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
207}; 213};
208 214
209/* the structure where most of the perl state is stored, overlaid on the cxstack */ 215/* the structure where most of the perl state is stored, overlaid on the cxstack */
210typedef struct 216typedef struct
211{ 217{
212 SV *defsv;
213 AV *defav;
214 SV *errsv;
215 SV *irsgv;
216 HV *hinthv;
217#define VAR(name,type) type name; 218 #define VARx(name,expr,type) type name;
218# include "state.h" 219 #include "state.h"
219#undef VAR
220} perl_slots; 220} perl_slots;
221 221
222/* how many context stack entries do we need for perl_slots */
222#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 223#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
223 224
224/* this is a structure representing a perl-level coroutine */ 225/* this is a structure representing a perl-level coroutine */
225struct coro { 226struct coro
227{
226 /* the C coroutine allocated to this perl coroutine, if any */ 228 /* the C coroutine allocated to this perl coroutine, if any */
227 coro_cctx *cctx; 229 coro_cctx *cctx;
228 230
229 /* ready queue */ 231 /* ready queue */
230 struct coro *next_ready; 232 struct coro *next_ready;
… …
232 /* state data */ 234 /* state data */
233 struct CoroSLF slf_frame; /* saved slf frame */ 235 struct CoroSLF slf_frame; /* saved slf frame */
234 AV *mainstack; 236 AV *mainstack;
235 perl_slots *slot; /* basically the saved sp */ 237 perl_slots *slot; /* basically the saved sp */
236 238
237 CV *startcv; /* the CV to execute */ 239 CV *startcv; /* the CV to execute */
238 AV *args; /* data associated with this coroutine (initial args) */ 240 AV *args; /* data associated with this coroutine (initial args) */
239 int refcnt; /* coroutines are refcounted, yes */
240 int flags; /* CF_ flags */ 241 int flags; /* CF_ flags */
241 HV *hv; /* the perl hash associated with this coro, if any */ 242 HV *hv; /* the perl hash associated with this coro, if any */
242 void (*on_destroy)(pTHX_ struct coro *coro);
243 243
244 /* statistics */ 244 /* statistics */
245 int usecount; /* number of transfers to this coro */ 245 int usecount; /* number of transfers to this coro */
246 246
247 /* coro process data */ 247 /* coro process data */
248 int prio; 248 int prio;
249 SV *except; /* exception to be thrown */ 249 SV *except; /* exception to be thrown */
250 SV *rouse_cb; 250 SV *rouse_cb; /* last rouse callback */
251 AV *on_destroy; /* callbacks or coros to notify on destroy */
252 AV *status; /* the exit status list */
251 253
252 /* async_pool */ 254 /* async_pool */
253 SV *saved_deffh; 255 SV *saved_deffh;
254 SV *invoke_cb; 256 SV *invoke_cb;
255 AV *invoke_av; 257 AV *invoke_av;
256 258
257 /* on_enter/on_leave */ 259 /* on_enter/on_leave */
258 AV *on_enter; 260 AV *on_enter; AV *on_enter_xs;
259 AV *on_leave; 261 AV *on_leave; AV *on_leave_xs;
260 262
261 /* swap_sv */ 263 /* swap_sv */
262 AV *swap_sv; 264 AV *swap_sv;
263 265
264 /* times */ 266 /* times */
… …
271typedef struct coro *Coro__State; 273typedef struct coro *Coro__State;
272typedef struct coro *Coro__State_or_hashref; 274typedef struct coro *Coro__State_or_hashref;
273 275
274/* the following variables are effectively part of the perl context */ 276/* the following variables are effectively part of the perl context */
275/* and get copied between struct coro and these variables */ 277/* and get copied between struct coro and these variables */
276/* the mainr easonw e don't support windows process emulation */ 278/* the main reason we don't support windows process emulation */
277static struct CoroSLF slf_frame; /* the current slf frame */ 279static struct CoroSLF slf_frame; /* the current slf frame */
278 280
279/** Coro ********************************************************************/ 281/** Coro ********************************************************************/
280 282
281#define CORO_PRIO_MAX 3 283#define CORO_PRIO_MAX 3
… …
287 289
288/* for Coro.pm */ 290/* for Coro.pm */
289static SV *coro_current; 291static SV *coro_current;
290static SV *coro_readyhook; 292static SV *coro_readyhook;
291static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 293static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
292static CV *cv_coro_run, *cv_coro_terminate; 294static CV *cv_coro_run;
293static struct coro *coro_first; 295static struct coro *coro_first;
294#define coro_nready coroapi.nready 296#define coro_nready coroapi.nready
297
298/** JIT *********************************************************************/
299
300#if CORO_JIT
301 /* APPLE doesn't have mmap though */
302 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
303 #ifndef CORO_JIT_TYPE
304 #if ECB_AMD64 && CORO_JIT_UNIXY
305 #define CORO_JIT_TYPE "amd64-unix"
306 #elif __i386 && CORO_JIT_UNIXY
307 #define CORO_JIT_TYPE "x86-unix"
308 #endif
309 #endif
310#endif
311
312#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
313 #undef CORO_JIT
314#endif
315
316#if CORO_JIT
317 typedef void (*load_save_perl_slots_type)(perl_slots *);
318 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
319#endif
295 320
296/** Coro::Select ************************************************************/ 321/** Coro::Select ************************************************************/
297 322
298static OP *(*coro_old_pp_sselect) (pTHX); 323static OP *(*coro_old_pp_sselect) (pTHX);
299static SV *coro_select_select; 324static SV *coro_select_select;
… …
311 PL_op->op_flags |= OPf_STACKED; 336 PL_op->op_flags |= OPf_STACKED;
312 PL_op->op_private = 0; 337 PL_op->op_private = 0;
313 return PL_ppaddr [OP_ENTERSUB](aTHX); 338 return PL_ppaddr [OP_ENTERSUB](aTHX);
314} 339}
315 340
341/** time stuff **************************************************************/
342
343#ifdef HAS_GETTIMEOFDAY
344
345ecb_inline void
346coro_u2time (pTHX_ UV ret[2])
347{
348 struct timeval tv;
349 gettimeofday (&tv, 0);
350
351 ret [0] = tv.tv_sec;
352 ret [1] = tv.tv_usec;
353}
354
355ecb_inline double
356coro_nvtime (void)
357{
358 struct timeval tv;
359 gettimeofday (&tv, 0);
360
361 return tv.tv_sec + tv.tv_usec * 1e-6;
362}
363
364ecb_inline void
365time_init (pTHX)
366{
367 nvtime = coro_nvtime;
368 u2time = coro_u2time;
369}
370
371#else
372
373ecb_inline void
374time_init (pTHX)
375{
376 SV **svp;
377
378 require_pv ("Time/HiRes.pm");
379
380 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
381
382 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
383 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
384
385 nvtime = INT2PTR (double (*)(), SvIV (*svp));
386
387 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
388 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
389}
390
391#endif
392
316/** lowlevel stuff **********************************************************/ 393/** lowlevel stuff **********************************************************/
317 394
318static SV * 395static SV * ecb_noinline
319coro_get_sv (pTHX_ const char *name, int create) 396coro_get_sv (pTHX_ const char *name, int create)
320{ 397{
321#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
322 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 399 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
323 get_sv (name, create); 400 get_sv (name, create);
324#endif 401#endif
325 return get_sv (name, create); 402 return get_sv (name, create);
326} 403}
327 404
328static AV * 405static AV * ecb_noinline
329coro_get_av (pTHX_ const char *name, int create) 406coro_get_av (pTHX_ const char *name, int create)
330{ 407{
331#if PERL_VERSION_ATLEAST (5,10,0) 408#if PERL_VERSION_ATLEAST (5,10,0)
332 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 409 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
333 get_av (name, create); 410 get_av (name, create);
334#endif 411#endif
335 return get_av (name, create); 412 return get_av (name, create);
336} 413}
337 414
338static HV * 415static HV * ecb_noinline
339coro_get_hv (pTHX_ const char *name, int create) 416coro_get_hv (pTHX_ const char *name, int create)
340{ 417{
341#if PERL_VERSION_ATLEAST (5,10,0) 418#if PERL_VERSION_ATLEAST (5,10,0)
342 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 419 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
343 get_hv (name, create); 420 get_hv (name, create);
344#endif 421#endif
345 return get_hv (name, create); 422 return get_hv (name, create);
346} 423}
347 424
348INLINE void 425ecb_inline void
349coro_times_update () 426coro_times_update (void)
350{ 427{
351#ifdef coro_clock_gettime 428#ifdef coro_clock_gettime
352 struct timespec ts; 429 struct timespec ts;
353 430
354 ts.tv_sec = ts.tv_nsec = 0; 431 ts.tv_sec = ts.tv_nsec = 0;
… …
366 time_real [0] = tv [0]; 443 time_real [0] = tv [0];
367 time_real [1] = tv [1] * 1000; 444 time_real [1] = tv [1] * 1000;
368#endif 445#endif
369} 446}
370 447
371INLINE void 448ecb_inline void
372coro_times_add (struct coro *c) 449coro_times_add (struct coro *c)
373{ 450{
374 c->t_real [1] += time_real [1]; 451 c->t_real [1] += time_real [1];
375 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 452 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
376 c->t_real [0] += time_real [0]; 453 c->t_real [0] += time_real [0];
… …
378 c->t_cpu [1] += time_cpu [1]; 455 c->t_cpu [1] += time_cpu [1];
379 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 456 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
380 c->t_cpu [0] += time_cpu [0]; 457 c->t_cpu [0] += time_cpu [0];
381} 458}
382 459
383INLINE void 460ecb_inline void
384coro_times_sub (struct coro *c) 461coro_times_sub (struct coro *c)
385{ 462{
386 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 463 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
387 c->t_real [1] -= time_real [1]; 464 c->t_real [1] -= time_real [1];
388 c->t_real [0] -= time_real [0]; 465 c->t_real [0] -= time_real [0];
… …
396/* magic glue */ 473/* magic glue */
397 474
398#define CORO_MAGIC_type_cv 26 475#define CORO_MAGIC_type_cv 26
399#define CORO_MAGIC_type_state PERL_MAGIC_ext 476#define CORO_MAGIC_type_state PERL_MAGIC_ext
400 477
401#define CORO_MAGIC_NN(sv, type) \ 478#define CORO_MAGIC_NN(sv, type) \
402 (expect_true (SvMAGIC (sv)->mg_type == type) \ 479 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
403 ? SvMAGIC (sv) \ 480 ? SvMAGIC (sv) \
404 : mg_find (sv, type)) 481 : mg_find (sv, type))
405 482
406#define CORO_MAGIC(sv, type) \ 483#define CORO_MAGIC(sv, type) \
407 (expect_true (SvMAGIC (sv)) \ 484 (ecb_expect_true (SvMAGIC (sv)) \
408 ? CORO_MAGIC_NN (sv, type) \ 485 ? CORO_MAGIC_NN (sv, type) \
409 : 0) 486 : 0)
410 487
411#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 488#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
412#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 489#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
413 490
414INLINE struct coro * 491ecb_inline MAGIC *
415SvSTATE_ (pTHX_ SV *coro) 492SvSTATEhv_p (pTHX_ SV *coro)
416{ 493{
417 HV *stash;
418 MAGIC *mg; 494 MAGIC *mg;
419 495
496 if (ecb_expect_true (
497 SvTYPE (coro) == SVt_PVHV
498 && (mg = CORO_MAGIC_state (coro))
499 && mg->mg_virtual == &coro_state_vtbl
500 ))
501 return mg;
502
503 return 0;
504}
505
506ecb_inline struct coro *
507SvSTATE_ (pTHX_ SV *coro_sv)
508{
509 MAGIC *mg;
510
420 if (SvROK (coro)) 511 if (SvROK (coro_sv))
421 coro = SvRV (coro); 512 coro_sv = SvRV (coro_sv);
422 513
423 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 514 mg = SvSTATEhv_p (aTHX_ coro_sv);
515 if (!mg)
424 croak ("Coro::State object required"); 516 croak ("Coro::State object required");
425 517
426 stash = SvSTASH (coro);
427 if (expect_false (stash != coro_stash && stash != coro_state_stash))
428 {
429 /* very slow, but rare, check */
430 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
431 croak ("Coro::State object required");
432 }
433
434 mg = CORO_MAGIC_state (coro);
435 return (struct coro *)mg->mg_ptr; 518 return (struct coro *)mg->mg_ptr;
436} 519}
437 520
438#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 521#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
439 522
… …
442#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 525#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
443 526
444/*****************************************************************************/ 527/*****************************************************************************/
445/* padlist management and caching */ 528/* padlist management and caching */
446 529
447static AV * 530ecb_inline PADLIST *
448coro_derive_padlist (pTHX_ CV *cv) 531coro_derive_padlist (pTHX_ CV *cv)
449{ 532{
450 AV *padlist = CvPADLIST (cv); 533 PADLIST *padlist = CvPADLIST (cv);
451 AV *newpadlist, *newpad; 534 PADLIST *newpadlist;
535 PADNAMELIST *padnames;
536 PAD *newpad;
537 PADOFFSET off = PadlistMAX (padlist) + 1;
452 538
453 newpadlist = newAV (); 539#if NEWPADAPI
540
541 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
542 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
543 while (!PadlistARRAY (padlist)[off - 1])
544 --off;
545
546 Perl_pad_push (aTHX_ padlist, off);
547
548 newpad = PadlistARRAY (padlist)[off];
549 PadlistARRAY (padlist)[off] = 0;
550
551#else
552
553#if PERL_VERSION_ATLEAST (5,10,0)
554 Perl_pad_push (aTHX_ padlist, off);
555#else
556 Perl_pad_push (aTHX_ padlist, off, 1);
557#endif
558
559 newpad = PadlistARRAY (padlist)[off];
560 PadlistMAX (padlist) = off - 1;
561
562#endif
563
564 newPADLIST (newpadlist);
565#if !PERL_VERSION_ATLEAST(5,15,3)
566 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
454 AvREAL_off (newpadlist); 567 AvREAL_off (newpadlist);
455#if PERL_VERSION_ATLEAST (5,10,0)
456 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
457#else
458 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
459#endif 568#endif
460 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
461 --AvFILLp (padlist);
462 569
463 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 570 /* Already extended to 2 elements by newPADLIST. */
464 av_store (newpadlist, 1, (SV *)newpad); 571 PadlistMAX (newpadlist) = 1;
572
573 padnames = PadlistNAMES (padlist);
574 ++PadnamelistREFCNT (padnames);
575 PadlistNAMES (newpadlist) = padnames;
576
577 PadlistARRAY (newpadlist)[1] = newpad;
465 578
466 return newpadlist; 579 return newpadlist;
467} 580}
468 581
469static void 582ecb_inline void
470free_padlist (pTHX_ AV *padlist) 583free_padlist (pTHX_ PADLIST *padlist)
471{ 584{
472 /* may be during global destruction */ 585 /* may be during global destruction */
473 if (!IN_DESTRUCT) 586 if (!IN_DESTRUCT)
474 { 587 {
475 I32 i = AvFILLp (padlist); 588 I32 i = PadlistMAX (padlist);
476 589
477 while (i > 0) /* special-case index 0 */ 590 while (i > 0) /* special-case index 0 */
478 { 591 {
479 /* we try to be extra-careful here */ 592 /* we try to be extra-careful here */
480 AV *av = (AV *)AvARRAY (padlist)[i--]; 593 PAD *pad = PadlistARRAY (padlist)[i--];
481 I32 j = AvFILLp (av);
482 594
595 if (pad)
596 {
597 I32 j = PadMAX (pad);
598
483 while (j >= 0) 599 while (j >= 0)
484 SvREFCNT_dec (AvARRAY (av)[j--]); 600 SvREFCNT_dec (PadARRAY (pad)[j--]);
485 601
486 AvFILLp (av) = -1; 602 PadMAX (pad) = -1;
487 SvREFCNT_dec (av); 603 SvREFCNT_dec (pad);
604 }
488 } 605 }
489 606
490 SvREFCNT_dec (AvARRAY (padlist)[0]); 607 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
491 608
609#if NEWPADAPI
610 Safefree (PadlistARRAY (padlist));
611 Safefree (padlist);
612#else
492 AvFILLp (padlist) = -1; 613 AvFILLp (padlist) = -1;
614 AvREAL_off (padlist);
493 SvREFCNT_dec ((SV*)padlist); 615 SvREFCNT_dec ((SV*)padlist);
616#endif
494 } 617 }
495} 618}
496 619
497static int 620static int
498coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 621coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
499{ 622{
500 AV *padlist; 623 PADLIST *padlist;
501 AV *av = (AV *)mg->mg_obj; 624 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
625 size_t len = *(size_t *)mg->mg_ptr;
502 626
503 /* perl manages to free our internal AV and _then_ call us */ 627 /* perl manages to free our internal AV and _then_ call us */
504 if (IN_DESTRUCT) 628 if (IN_DESTRUCT)
505 return 0; 629 return 0;
506 630
507 /* casting is fun. */ 631 while (len--)
508 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
509 free_padlist (aTHX_ padlist); 632 free_padlist (aTHX_ padlists[len]);
510
511 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
512 633
513 return 0; 634 return 0;
514} 635}
515 636
516static MGVTBL coro_cv_vtbl = { 637static MGVTBL coro_cv_vtbl = {
517 0, 0, 0, 0, 638 0, 0, 0, 0,
518 coro_cv_free 639 coro_cv_free
519}; 640};
520 641
521/* the next two functions merely cache the padlists */ 642/* the next two functions merely cache the padlists */
522static void 643ecb_inline void
523get_padlist (pTHX_ CV *cv) 644get_padlist (pTHX_ CV *cv)
524{ 645{
525 MAGIC *mg = CORO_MAGIC_cv (cv); 646 MAGIC *mg = CORO_MAGIC_cv (cv);
526 AV *av; 647 size_t *lenp;
527 648
528 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 649 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
529 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 650 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
530 else 651 else
531 { 652 {
532#if CORO_PREFER_PERL_FUNCTIONS 653#if CORO_PREFER_PERL_FUNCTIONS
533 /* this is probably cleaner? but also slower! */ 654 /* this is probably cleaner? but also slower! */
534 /* in practise, it seems to be less stable */ 655 /* in practise, it seems to be less stable */
… …
540 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 661 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
541#endif 662#endif
542 } 663 }
543} 664}
544 665
545static void 666ecb_inline void
546put_padlist (pTHX_ CV *cv) 667put_padlist (pTHX_ CV *cv)
547{ 668{
548 MAGIC *mg = CORO_MAGIC_cv (cv); 669 MAGIC *mg = CORO_MAGIC_cv (cv);
549 AV *av;
550 670
551 if (expect_false (!mg)) 671 if (ecb_expect_false (!mg))
672 {
552 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 673 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
674 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
675 mg->mg_len = 1; /* so mg_free frees mg_ptr */
676 }
677 else
678 Renew (mg->mg_ptr,
679 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
680 char);
553 681
554 av = (AV *)mg->mg_obj; 682 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
555
556 if (expect_false (AvFILLp (av) >= AvMAX (av)))
557 av_extend (av, AvFILLp (av) + 1);
558
559 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
560} 683}
561 684
562/** load & save, init *******************************************************/ 685/** load & save, init *******************************************************/
563 686
687ecb_inline void
688swap_sv (SV *a, SV *b)
689{
690 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
691 SV tmp;
692
693 /* swap sv_any */
694 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
695
696 /* swap sv_flags */
697 SvFLAGS (&tmp) = SvFLAGS (a);
698 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
699 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
700
701#if PERL_VERSION_ATLEAST (5,10,0)
702 /* perl 5.10 and later complicates this _quite_ a bit, but it also
703 * is much faster, so no quarrels here. alternatively, we could
704 * sv_upgrade to avoid this.
705 */
706 {
707 /* swap sv_u */
708 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
709
710 /* if SvANY points to the head, we need to adjust the pointers,
711 * as the pointer for a still points to b, and maybe vice versa.
712 */
713 U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
714 #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
715 svany_in_head_set |= 1 << SVt_NV;
716 #endif
717
718 #define svany_in_head(type) (svany_in_head_set & (1 << (type)))
719
720 if (svany_in_head (SvTYPE (a)))
721 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
722
723 if (svany_in_head (SvTYPE (b)))
724 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
725 }
726#endif
727}
728
564/* swap sv heads, at least logically */ 729/* swap sv heads, at least logically */
565static void 730static void
566swap_svs (pTHX_ Coro__State c) 731swap_svs_enter (pTHX_ Coro__State c)
567{ 732{
568 int i; 733 int i;
569 734
570 for (i = 0; i <= AvFILLp (c->swap_sv); ) 735 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
571 { 736 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
572 SV *a = AvARRAY (c->swap_sv)[i++];
573 SV *b = AvARRAY (c->swap_sv)[i++];
574
575 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
576 SV tmp;
577
578 /* swap sv_any */
579 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
580
581 /* swap sv_flags */
582 SvFLAGS (&tmp) = SvFLAGS (a);
583 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
584 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
585
586#if PERL_VERSION_ATLEAST (5,10,0)
587 /* perl 5.10 complicates this _quite_ a bit, but it also is
588 * is much faster, so no quarrels here. alternatively, we could
589 * sv_upgrade to avoid this.
590 */
591 {
592 /* swap sv_u */
593 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
594
595 /* if SvANY points to the head, we need to adjust the pointers,
596 * as the pointer for a still points to b, and maybe vice versa.
597 */
598 #define svany_in_head(type) \
599 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
600
601 if (svany_in_head (SvTYPE (a)))
602 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
603
604 if (svany_in_head (SvTYPE (b)))
605 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
606 }
607#endif
608 }
609} 737}
610 738
739static void
740swap_svs_leave (pTHX_ Coro__State c)
741{
742 int i;
743
744 for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2)
745 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
746}
747
611#define SWAP_SVS(coro) \ 748#define SWAP_SVS_ENTER(coro) \
612 if (expect_false ((coro)->swap_sv)) \ 749 if (ecb_expect_false ((coro)->swap_sv)) \
613 swap_svs (aTHX_ (coro)) 750 swap_svs_enter (aTHX_ (coro))
751
752#define SWAP_SVS_LEAVE(coro) \
753 if (ecb_expect_false ((coro)->swap_sv)) \
754 swap_svs_leave (aTHX_ (coro))
614 755
615static void 756static void
616on_enterleave_call (pTHX_ SV *cb); 757on_enterleave_call (pTHX_ SV *cb);
617 758
618static void 759static void
… …
621 perl_slots *slot = c->slot; 762 perl_slots *slot = c->slot;
622 c->slot = 0; 763 c->slot = 0;
623 764
624 PL_mainstack = c->mainstack; 765 PL_mainstack = c->mainstack;
625 766
626 GvSV (PL_defgv) = slot->defsv; 767#if CORO_JIT
627 GvAV (PL_defgv) = slot->defav; 768 load_perl_slots (slot);
628 GvSV (PL_errgv) = slot->errsv; 769#else
629 GvSV (irsgv) = slot->irsgv;
630 GvHV (PL_hintgv) = slot->hinthv;
631
632 #define VAR(name,type) PL_ ## name = slot->name; 770 #define VARx(name,expr,type) expr = slot->name;
633 # include "state.h" 771 #include "state.h"
634 #undef VAR 772#endif
635 773
636 { 774 {
637 dSP; 775 dSP;
638 776
639 CV *cv; 777 CV *cv;
640 778
641 /* now do the ugly restore mess */ 779 /* now do the ugly restore mess */
642 while (expect_true (cv = (CV *)POPs)) 780 while (ecb_expect_true (cv = (CV *)POPs))
643 { 781 {
644 put_padlist (aTHX_ cv); /* mark this padlist as available */ 782 put_padlist (aTHX_ cv); /* mark this padlist as available */
645 CvDEPTH (cv) = PTR2IV (POPs); 783 CvDEPTH (cv) = PTR2IV (POPs);
646 CvPADLIST (cv) = (AV *)POPs; 784 CvPADLIST (cv) = (PADLIST *)POPs;
647 } 785 }
648 786
649 PUTBACK; 787 PUTBACK;
650 } 788 }
651 789
652 slf_frame = c->slf_frame; 790 slf_frame = c->slf_frame;
653 CORO_THROW = c->except; 791 CORO_THROW = c->except;
654 792
655 if (expect_false (enable_times)) 793 if (ecb_expect_false (enable_times))
656 { 794 {
657 if (expect_false (!times_valid)) 795 if (ecb_expect_false (!times_valid))
658 coro_times_update (); 796 coro_times_update ();
659 797
660 coro_times_sub (c); 798 coro_times_sub (c);
661 } 799 }
662 800
663 if (expect_false (c->on_enter)) 801 if (ecb_expect_false (c->on_enter))
664 { 802 {
665 int i; 803 int i;
666 804
667 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 805 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
668 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 806 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
669 } 807 }
670 808
809 if (ecb_expect_false (c->on_enter_xs))
810 {
811 int i;
812
813 for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
814 ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
815 }
816
671 SWAP_SVS (c); 817 SWAP_SVS_ENTER (c);
672} 818}
673 819
674static void 820static void
675save_perl (pTHX_ Coro__State c) 821save_perl (pTHX_ Coro__State c)
676{ 822{
677 SWAP_SVS (c); 823 SWAP_SVS_LEAVE (c);
678 824
825 if (ecb_expect_false (c->on_leave_xs))
826 {
827 int i;
828
829 for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
830 ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
831 }
832
679 if (expect_false (c->on_leave)) 833 if (ecb_expect_false (c->on_leave))
680 { 834 {
681 int i; 835 int i;
682 836
683 for (i = AvFILLp (c->on_leave); i >= 0; --i) 837 for (i = AvFILLp (c->on_leave); i >= 0; --i)
684 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 838 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
685 } 839 }
686 840
687 times_valid = 0; 841 times_valid = 0;
688 842
689 if (expect_false (enable_times)) 843 if (ecb_expect_false (enable_times))
690 { 844 {
691 coro_times_update (); times_valid = 1; 845 coro_times_update (); times_valid = 1;
692 coro_times_add (c); 846 coro_times_add (c);
693 } 847 }
694 848
… …
708 862
709 XPUSHs (Nullsv); 863 XPUSHs (Nullsv);
710 /* this loop was inspired by pp_caller */ 864 /* this loop was inspired by pp_caller */
711 for (;;) 865 for (;;)
712 { 866 {
713 while (expect_true (cxix >= 0)) 867 while (ecb_expect_true (cxix >= 0))
714 { 868 {
715 PERL_CONTEXT *cx = &ccstk[cxix--]; 869 PERL_CONTEXT *cx = &ccstk[cxix--];
716 870
717 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 871 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
718 { 872 {
719 CV *cv = cx->blk_sub.cv; 873 CV *cv = cx->blk_sub.cv;
720 874
721 if (expect_true (CvDEPTH (cv))) 875 if (ecb_expect_true (CvDEPTH (cv)))
722 { 876 {
723 EXTEND (SP, 3); 877 EXTEND (SP, 3);
724 PUSHs ((SV *)CvPADLIST (cv)); 878 PUSHs ((SV *)CvPADLIST (cv));
725 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 879 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
726 PUSHs ((SV *)cv); 880 PUSHs ((SV *)cv);
… …
729 get_padlist (aTHX_ cv); 883 get_padlist (aTHX_ cv);
730 } 884 }
731 } 885 }
732 } 886 }
733 887
734 if (expect_true (top_si->si_type == PERLSI_MAIN)) 888 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
735 break; 889 break;
736 890
737 top_si = top_si->si_prev; 891 top_si = top_si->si_prev;
738 ccstk = top_si->si_cxstack; 892 ccstk = top_si->si_cxstack;
739 cxix = top_si->si_cxix; 893 cxix = top_si->si_cxix;
… …
741 895
742 PUTBACK; 896 PUTBACK;
743 } 897 }
744 898
745 /* allocate some space on the context stack for our purposes */ 899 /* allocate some space on the context stack for our purposes */
746 /* we manually unroll here, as usually 2 slots is enough */ 900 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
747 if (SLOT_COUNT >= 1) CXINC;
748 if (SLOT_COUNT >= 2) CXINC;
749 if (SLOT_COUNT >= 3) CXINC;
750 { 901 {
751 unsigned int i; 902 unsigned int i;
903
752 for (i = 3; i < SLOT_COUNT; ++i) 904 for (i = 0; i < SLOT_COUNT; ++i)
753 CXINC; 905 CXINC;
754 } 906
755 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 907 cxstack_ix -= SLOT_COUNT; /* undo allocation */
908 }
756 909
757 c->mainstack = PL_mainstack; 910 c->mainstack = PL_mainstack;
758 911
759 { 912 {
760 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 913 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
761 914
762 slot->defav = GvAV (PL_defgv); 915#if CORO_JIT
763 slot->defsv = DEFSV; 916 save_perl_slots (slot);
764 slot->errsv = ERRSV; 917#else
765 slot->irsgv = GvSV (irsgv);
766 slot->hinthv = GvHV (PL_hintgv);
767
768 #define VAR(name,type) slot->name = PL_ ## name; 918 #define VARx(name,expr,type) slot->name = expr;
769 # include "state.h" 919 #include "state.h"
770 #undef VAR 920#endif
771 } 921 }
772} 922}
773 923
774/* 924/*
775 * allocate various perl stacks. This is almost an exact copy 925 * allocate various perl stacks. This is almost an exact copy
… …
781# define coro_init_stacks(thx) init_stacks () 931# define coro_init_stacks(thx) init_stacks ()
782#else 932#else
783static void 933static void
784coro_init_stacks (pTHX) 934coro_init_stacks (pTHX)
785{ 935{
786 PL_curstackinfo = new_stackinfo(32, 8); 936 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
787 PL_curstackinfo->si_type = PERLSI_MAIN; 937 PL_curstackinfo->si_type = PERLSI_MAIN;
788 PL_curstack = PL_curstackinfo->si_stack; 938 PL_curstack = PL_curstackinfo->si_stack;
789 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 939 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
790 940
791 PL_stack_base = AvARRAY(PL_curstack); 941 PL_stack_base = AvARRAY(PL_curstack);
… …
806#endif 956#endif
807 957
808 New(54,PL_scopestack,8,I32); 958 New(54,PL_scopestack,8,I32);
809 PL_scopestack_ix = 0; 959 PL_scopestack_ix = 0;
810 PL_scopestack_max = 8; 960 PL_scopestack_max = 8;
961#if HAS_SCOPESTACK_NAME
962 New(54,PL_scopestack_name,8,const char*);
963#endif
811 964
812 New(54,PL_savestack,24,ANY); 965 New(54,PL_savestack,24,ANY);
813 PL_savestack_ix = 0; 966 PL_savestack_ix = 0;
814 PL_savestack_max = 24; 967 PL_savestack_max = 24;
968#if !PERL_VERSION_ATLEAST (5,24,0)
969 /* perl 5.24 moves SS_MAXPUSH optimisation from */
970 /* the header macros to PL_savestack_max */
971 PL_savestack_max -= SS_MAXPUSH;
972#endif
815 973
816#if !PERL_VERSION_ATLEAST (5,10,0) 974#if !PERL_VERSION_ATLEAST (5,10,0)
817 New(54,PL_retstack,4,OP*); 975 New(54,PL_retstack,4,OP*);
818 PL_retstack_ix = 0; 976 PL_retstack_ix = 0;
819 PL_retstack_max = 4; 977 PL_retstack_max = 4;
… …
843 } 1001 }
844 1002
845 Safefree (PL_tmps_stack); 1003 Safefree (PL_tmps_stack);
846 Safefree (PL_markstack); 1004 Safefree (PL_markstack);
847 Safefree (PL_scopestack); 1005 Safefree (PL_scopestack);
1006#if HAS_SCOPESTACK_NAME
1007 Safefree (PL_scopestack_name);
1008#endif
848 Safefree (PL_savestack); 1009 Safefree (PL_savestack);
849#if !PERL_VERSION_ATLEAST (5,10,0) 1010#if !PERL_VERSION_ATLEAST (5,10,0)
850 Safefree (PL_retstack); 1011 Safefree (PL_retstack);
851#endif 1012#endif
852} 1013}
… …
898#endif 1059#endif
899 1060
900/* 1061/*
901 * This overrides the default magic get method of %SIG elements. 1062 * This overrides the default magic get method of %SIG elements.
902 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1063 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
903 * and instead of trying to save and restore the hash elements, we just provide 1064 * and instead of trying to save and restore the hash elements (extremely slow),
904 * readback here. 1065 * we just provide our own readback here.
905 */ 1066 */
906static int 1067static int ecb_cold
907coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1068coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
908{ 1069{
909 const char *s = MgPV_nolen_const (mg); 1070 const char *s = MgPV_nolen_const (mg);
910 1071
911 if (*s == '_') 1072 if (*s == '_')
912 { 1073 {
913 SV **svp = 0; 1074 SV **svp = 0;
914 1075
915 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1076 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
916 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1077 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
917 1078
918 if (svp) 1079 if (svp)
919 { 1080 {
920 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1081 SV *ssv;
1082
1083 if (!*svp)
1084 ssv = &PL_sv_undef;
1085 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1086 ssv = sv_2mortal (newRV_inc (*svp));
1087 else
1088 ssv = *svp;
1089
1090 sv_setsv (sv, ssv);
921 return 0; 1091 return 0;
922 } 1092 }
923 } 1093 }
924 1094
925 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1095 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
926} 1096}
927 1097
928static int 1098static int ecb_cold
929coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1099coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
930{ 1100{
931 const char *s = MgPV_nolen_const (mg); 1101 const char *s = MgPV_nolen_const (mg);
932 1102
933 if (*s == '_') 1103 if (*s == '_')
… …
947 } 1117 }
948 1118
949 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1119 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
950} 1120}
951 1121
952static int 1122static int ecb_cold
953coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1123coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
954{ 1124{
955 const char *s = MgPV_nolen_const (mg); 1125 const char *s = MgPV_nolen_const (mg);
956 1126
957 if (*s == '_') 1127 if (*s == '_')
… …
992 return 1; 1162 return 1;
993} 1163}
994 1164
995static UNOP init_perl_op; 1165static UNOP init_perl_op;
996 1166
997static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1167ecb_noinline static void /* noinline to keep it out of the transfer fast path */
998init_perl (pTHX_ struct coro *coro) 1168init_perl (pTHX_ struct coro *coro)
999{ 1169{
1000 /* 1170 /*
1001 * emulate part of the perl startup here. 1171 * emulate part of the perl startup here.
1002 */ 1172 */
… …
1010 PL_comppad_name_fill = 0; 1180 PL_comppad_name_fill = 0;
1011 PL_comppad_name_floor = 0; 1181 PL_comppad_name_floor = 0;
1012 PL_curpm = 0; 1182 PL_curpm = 0;
1013 PL_curpad = 0; 1183 PL_curpad = 0;
1014 PL_localizing = 0; 1184 PL_localizing = 0;
1015 PL_dirty = 0;
1016 PL_restartop = 0; 1185 PL_restartop = 0;
1017#if PERL_VERSION_ATLEAST (5,10,0) 1186#if PERL_VERSION_ATLEAST (5,10,0)
1018 PL_parser = 0; 1187 PL_parser = 0;
1019#endif 1188#endif
1020 PL_hints = 0; 1189 PL_hints = 0;
1021 1190
1022 /* recreate the die/warn hooks */ 1191 /* recreate the die/warn hooks */
1023 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1192 PL_diehook = SvREFCNT_inc (rv_diehook);
1024 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1193 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1025 1194
1026 GvSV (PL_defgv) = newSV (0); 1195 GvSV (PL_defgv) = newSV (0);
1027 GvAV (PL_defgv) = coro->args; coro->args = 0; 1196 GvAV (PL_defgv) = coro->args; coro->args = 0;
1028 GvSV (PL_errgv) = newSV (0); 1197 GvSV (PL_errgv) = newSV (0);
1029 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1198 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1030 GvHV (PL_hintgv) = 0; 1199 GvHV (PL_hintgv) = newHV ();
1200#if PERL_VERSION_ATLEAST (5,10,0)
1201 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1202#endif
1031 PL_rs = newSVsv (GvSV (irsgv)); 1203 PL_rs = newSVsv (GvSV (irsgv));
1032 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1204 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1033 1205
1034 { 1206 {
1035 dSP; 1207 dSP;
… …
1050 /* this newly created coroutine might be run on an existing cctx which most 1222 /* this newly created coroutine might be run on an existing cctx which most
1051 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1223 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
1052 */ 1224 */
1053 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1225 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
1054 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1226 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1227 slf_frame.destroy = 0;
1055 1228
1056 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1229 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
1057 init_perl_op.op_next = PL_op; 1230 init_perl_op.op_next = PL_op;
1058 init_perl_op.op_type = OP_ENTERSUB; 1231 init_perl_op.op_type = OP_ENTERSUB;
1059 init_perl_op.op_ppaddr = pp_slf; 1232 init_perl_op.op_ppaddr = pp_slf;
… …
1062 PL_op = (OP *)&init_perl_op; 1235 PL_op = (OP *)&init_perl_op;
1063 1236
1064 /* copy throw, in case it was set before init_perl */ 1237 /* copy throw, in case it was set before init_perl */
1065 CORO_THROW = coro->except; 1238 CORO_THROW = coro->except;
1066 1239
1067 SWAP_SVS (coro); 1240 SWAP_SVS_ENTER (coro);
1068 1241
1069 if (expect_false (enable_times)) 1242 if (ecb_expect_false (enable_times))
1070 { 1243 {
1071 coro_times_update (); 1244 coro_times_update ();
1072 coro_times_sub (coro); 1245 coro_times_sub (coro);
1073 } 1246 }
1074} 1247}
… …
1098destroy_perl (pTHX_ struct coro *coro) 1271destroy_perl (pTHX_ struct coro *coro)
1099{ 1272{
1100 SV *svf [9]; 1273 SV *svf [9];
1101 1274
1102 { 1275 {
1276 SV *old_current = SvRV (coro_current);
1103 struct coro *current = SvSTATE_current; 1277 struct coro *current = SvSTATE (old_current);
1104 1278
1105 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1279 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1106 1280
1107 save_perl (aTHX_ current); 1281 save_perl (aTHX_ current);
1282
1283 /* this will cause transfer_check to croak on block*/
1284 SvRV_set (coro_current, (SV *)coro->hv);
1285
1108 load_perl (aTHX_ coro); 1286 load_perl (aTHX_ coro);
1109 1287
1288 /* restore swapped sv's */
1289 SWAP_SVS_LEAVE (coro);
1290
1110 coro_unwind_stacks (aTHX); 1291 coro_unwind_stacks (aTHX);
1292
1111 coro_destruct_stacks (aTHX); 1293 coro_destruct_stacks (aTHX);
1112 1294
1113 /* restore swapped sv's */
1114 SWAP_SVS (coro);
1115
1116 // now save some sv's to be free'd later 1295 /* now save some sv's to be free'd later */
1117 svf [0] = GvSV (PL_defgv); 1296 svf [0] = GvSV (PL_defgv);
1118 svf [1] = (SV *)GvAV (PL_defgv); 1297 svf [1] = (SV *)GvAV (PL_defgv);
1119 svf [2] = GvSV (PL_errgv); 1298 svf [2] = GvSV (PL_errgv);
1120 svf [3] = (SV *)PL_defoutgv; 1299 svf [3] = (SV *)PL_defoutgv;
1121 svf [4] = PL_rs; 1300 svf [4] = PL_rs;
… …
1123 svf [6] = (SV *)GvHV (PL_hintgv); 1302 svf [6] = (SV *)GvHV (PL_hintgv);
1124 svf [7] = PL_diehook; 1303 svf [7] = PL_diehook;
1125 svf [8] = PL_warnhook; 1304 svf [8] = PL_warnhook;
1126 assert (9 == sizeof (svf) / sizeof (*svf)); 1305 assert (9 == sizeof (svf) / sizeof (*svf));
1127 1306
1307 SvRV_set (coro_current, old_current);
1308
1128 load_perl (aTHX_ current); 1309 load_perl (aTHX_ current);
1129 } 1310 }
1130 1311
1131 { 1312 {
1132 unsigned int i; 1313 unsigned int i;
… …
1136 1317
1137 SvREFCNT_dec (coro->saved_deffh); 1318 SvREFCNT_dec (coro->saved_deffh);
1138 SvREFCNT_dec (coro->rouse_cb); 1319 SvREFCNT_dec (coro->rouse_cb);
1139 SvREFCNT_dec (coro->invoke_cb); 1320 SvREFCNT_dec (coro->invoke_cb);
1140 SvREFCNT_dec (coro->invoke_av); 1321 SvREFCNT_dec (coro->invoke_av);
1322 SvREFCNT_dec (coro->on_enter_xs);
1323 SvREFCNT_dec (coro->on_leave_xs);
1141 } 1324 }
1142} 1325}
1143 1326
1144INLINE void 1327ecb_inline void
1145free_coro_mortal (pTHX) 1328free_coro_mortal (pTHX)
1146{ 1329{
1147 if (expect_true (coro_mortal)) 1330 if (ecb_expect_true (coro_mortal))
1148 { 1331 {
1149 SvREFCNT_dec (coro_mortal); 1332 SvREFCNT_dec ((SV *)coro_mortal);
1150 coro_mortal = 0; 1333 coro_mortal = 0;
1151 } 1334 }
1152} 1335}
1153 1336
1154static int 1337static int
… …
1208 1391
1209 if (PL_curcop != &PL_compiling) 1392 if (PL_curcop != &PL_compiling)
1210 { 1393 {
1211 SV **cb; 1394 SV **cb;
1212 1395
1213 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) 1396 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1214 { 1397 {
1215 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1398 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1216 1399
1217 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1400 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1218 { 1401 {
… …
1287 1470
1288 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1471 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1289} 1472}
1290 1473
1291/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1474/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1292static void NOINLINE 1475static void ecb_noinline
1293cctx_prepare (pTHX) 1476cctx_prepare (pTHX)
1294{ 1477{
1295 PL_top_env = &PL_start_env; 1478 PL_top_env = &PL_start_env;
1296 1479
1297 if (cctx_current->flags & CC_TRACE) 1480 if (cctx_current->flags & CC_TRACE)
… …
1308 slf_frame.prepare = slf_prepare_set_stacklevel; 1491 slf_frame.prepare = slf_prepare_set_stacklevel;
1309 slf_frame.check = slf_check_set_stacklevel; 1492 slf_frame.check = slf_check_set_stacklevel;
1310} 1493}
1311 1494
1312/* the tail of transfer: execute stuff we can only do after a transfer */ 1495/* the tail of transfer: execute stuff we can only do after a transfer */
1313INLINE void 1496ecb_inline void
1314transfer_tail (pTHX) 1497transfer_tail (pTHX)
1315{ 1498{
1316 free_coro_mortal (aTHX); 1499 free_coro_mortal (aTHX);
1500}
1501
1502/* try to exit the same way perl's main function would do */
1503/* we do not bother resetting the environment or other things *7
1504/* that are not, uhm, essential */
1505/* this obviously also doesn't work when perl is embedded */
1506static void ecb_noinline ecb_cold
1507perlish_exit (pTHX)
1508{
1509 int exitstatus = perl_destruct (PL_curinterp);
1510 perl_free (PL_curinterp);
1511 exit (exitstatus);
1317} 1512}
1318 1513
1319/* 1514/*
1320 * this is a _very_ stripped down perl interpreter ;) 1515 * this is a _very_ stripped down perl interpreter ;)
1321 */ 1516 */
… …
1350 */ 1545 */
1351 1546
1352 /* 1547 /*
1353 * If perl-run returns we assume exit() was being called or the coro 1548 * If perl-run returns we assume exit() was being called or the coro
1354 * fell off the end, which seems to be the only valid (non-bug) 1549 * fell off the end, which seems to be the only valid (non-bug)
1355 * reason for perl_run to return. We try to exit by jumping to the 1550 * reason for perl_run to return. We try to mimic whatever perl is normally
1356 * bootstrap-time "top" top_env, as we cannot restore the "main" 1551 * doing in that case. YMMV.
1357 * coroutine as Coro has no such concept.
1358 * This actually isn't valid with the pthread backend, but OSes requiring
1359 * that backend are too broken to do it in a standards-compliant way.
1360 */ 1552 */
1361 PL_top_env = main_top_env; 1553 perlish_exit (aTHX);
1362 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1363 } 1554 }
1364} 1555}
1365 1556
1366static coro_cctx * 1557static coro_cctx *
1367cctx_new () 1558cctx_new (void)
1368{ 1559{
1369 coro_cctx *cctx; 1560 coro_cctx *cctx;
1370 1561
1371 ++cctx_count; 1562 ++cctx_count;
1372 New (0, cctx, 1, coro_cctx); 1563 New (0, cctx, 1, coro_cctx);
… …
1378 return cctx; 1569 return cctx;
1379} 1570}
1380 1571
1381/* create a new cctx only suitable as source */ 1572/* create a new cctx only suitable as source */
1382static coro_cctx * 1573static coro_cctx *
1383cctx_new_empty () 1574cctx_new_empty (void)
1384{ 1575{
1385 coro_cctx *cctx = cctx_new (); 1576 coro_cctx *cctx = cctx_new ();
1386 1577
1387 cctx->sptr = 0; 1578 cctx->stack.sptr = 0;
1388 coro_create (&cctx->cctx, 0, 0, 0, 0); 1579 coro_create (&cctx->cctx, 0, 0, 0, 0);
1389 1580
1390 return cctx; 1581 return cctx;
1391} 1582}
1392 1583
1393/* create a new cctx suitable as destination/running a perl interpreter */ 1584/* create a new cctx suitable as destination/running a perl interpreter */
1394static coro_cctx * 1585static coro_cctx *
1395cctx_new_run () 1586cctx_new_run (void)
1396{ 1587{
1397 coro_cctx *cctx = cctx_new (); 1588 coro_cctx *cctx = cctx_new ();
1398 void *stack_start;
1399 size_t stack_size;
1400 1589
1401#if HAVE_MMAP 1590 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1402 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1403 /* mmap supposedly does allocate-on-write for us */
1404 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1405
1406 if (cctx->sptr != (void *)-1)
1407 {
1408 #if CORO_STACKGUARD
1409 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1410 #endif
1411 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1412 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1413 cctx->flags |= CC_MAPPED;
1414 } 1591 {
1415 else
1416#endif
1417 {
1418 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1419 New (0, cctx->sptr, cctx_stacksize, long);
1420
1421 if (!cctx->sptr)
1422 {
1423 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1592 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1424 _exit (EXIT_FAILURE); 1593 _exit (EXIT_FAILURE);
1425 }
1426
1427 stack_start = cctx->sptr;
1428 stack_size = cctx->ssize;
1429 } 1594 }
1430 1595
1431 #if CORO_USE_VALGRIND
1432 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1433 #endif
1434
1435 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1596 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1436 1597
1437 return cctx; 1598 return cctx;
1438} 1599}
1439 1600
1440static void 1601static void
1441cctx_destroy (coro_cctx *cctx) 1602cctx_destroy (coro_cctx *cctx)
1442{ 1603{
1443 if (!cctx) 1604 if (!cctx)
1444 return; 1605 return;
1445 1606
1446 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1607 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1447 1608
1448 --cctx_count; 1609 --cctx_count;
1449 coro_destroy (&cctx->cctx); 1610 coro_destroy (&cctx->cctx);
1450 1611
1451 /* coro_transfer creates new, empty cctx's */ 1612 coro_stack_free (&cctx->stack);
1452 if (cctx->sptr)
1453 {
1454 #if CORO_USE_VALGRIND
1455 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1456 #endif
1457
1458#if HAVE_MMAP
1459 if (cctx->flags & CC_MAPPED)
1460 munmap (cctx->sptr, cctx->ssize);
1461 else
1462#endif
1463 Safefree (cctx->sptr);
1464 }
1465 1613
1466 Safefree (cctx); 1614 Safefree (cctx);
1467} 1615}
1468 1616
1469/* wether this cctx should be destructed */ 1617/* wether this cctx should be destructed */
1470#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1618#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1471 1619
1472static coro_cctx * 1620static coro_cctx *
1473cctx_get (pTHX) 1621cctx_get (pTHX)
1474{ 1622{
1475 while (expect_true (cctx_first)) 1623 while (ecb_expect_true (cctx_first))
1476 { 1624 {
1477 coro_cctx *cctx = cctx_first; 1625 coro_cctx *cctx = cctx_first;
1478 cctx_first = cctx->next; 1626 cctx_first = cctx->next;
1479 --cctx_idle; 1627 --cctx_idle;
1480 1628
1481 if (expect_true (!CCTX_EXPIRED (cctx))) 1629 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1482 return cctx; 1630 return cctx;
1483 1631
1484 cctx_destroy (cctx); 1632 cctx_destroy (cctx);
1485 } 1633 }
1486 1634
… …
1488} 1636}
1489 1637
1490static void 1638static void
1491cctx_put (coro_cctx *cctx) 1639cctx_put (coro_cctx *cctx)
1492{ 1640{
1493 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1641 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1494 1642
1495 /* free another cctx if overlimit */ 1643 /* free another cctx if overlimit */
1496 if (expect_false (cctx_idle >= cctx_max_idle)) 1644 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1497 { 1645 {
1498 coro_cctx *first = cctx_first; 1646 coro_cctx *first = cctx_first;
1499 cctx_first = first->next; 1647 cctx_first = first->next;
1500 --cctx_idle; 1648 --cctx_idle;
1501 1649
… …
1512static void 1660static void
1513transfer_check (pTHX_ struct coro *prev, struct coro *next) 1661transfer_check (pTHX_ struct coro *prev, struct coro *next)
1514{ 1662{
1515 /* TODO: throwing up here is considered harmful */ 1663 /* TODO: throwing up here is considered harmful */
1516 1664
1517 if (expect_true (prev != next)) 1665 if (ecb_expect_true (prev != next))
1518 { 1666 {
1519 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1667 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1520 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1668 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1521 1669
1522 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1670 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1523 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1671 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1524 1672
1525#if !PERL_VERSION_ATLEAST (5,10,0) 1673#if !PERL_VERSION_ATLEAST (5,10,0)
1526 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1674 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1527 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1675 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1528#endif 1676#endif
1529 } 1677 }
1530} 1678}
1531 1679
1532/* always use the TRANSFER macro */ 1680/* always use the TRANSFER macro */
1533static void NOINLINE /* noinline so we have a fixed stackframe */ 1681static void ecb_noinline /* noinline so we have a fixed stackframe */
1534transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1682transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1535{ 1683{
1536 dSTACKLEVEL; 1684 dSTACKLEVEL;
1537 1685
1538 /* sometimes transfer is only called to set idle_sp */ 1686 /* sometimes transfer is only called to set idle_sp */
1539 if (expect_false (!prev)) 1687 if (ecb_expect_false (!prev))
1540 { 1688 {
1541 cctx_current->idle_sp = STACKLEVEL; 1689 cctx_current->idle_sp = STACKLEVEL;
1542 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1690 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1543 } 1691 }
1544 else if (expect_true (prev != next)) 1692 else if (ecb_expect_true (prev != next))
1545 { 1693 {
1546 coro_cctx *cctx_prev; 1694 coro_cctx *cctx_prev;
1547 1695
1548 if (expect_false (prev->flags & CF_NEW)) 1696 if (ecb_expect_false (prev->flags & CF_NEW))
1549 { 1697 {
1550 /* create a new empty/source context */ 1698 /* create a new empty/source context */
1551 prev->flags &= ~CF_NEW; 1699 prev->flags &= ~CF_NEW;
1552 prev->flags |= CF_RUNNING; 1700 prev->flags |= CF_RUNNING;
1553 } 1701 }
… …
1556 next->flags |= CF_RUNNING; 1704 next->flags |= CF_RUNNING;
1557 1705
1558 /* first get rid of the old state */ 1706 /* first get rid of the old state */
1559 save_perl (aTHX_ prev); 1707 save_perl (aTHX_ prev);
1560 1708
1561 if (expect_false (next->flags & CF_NEW)) 1709 if (ecb_expect_false (next->flags & CF_NEW))
1562 { 1710 {
1563 /* need to start coroutine */ 1711 /* need to start coroutine */
1564 next->flags &= ~CF_NEW; 1712 next->flags &= ~CF_NEW;
1565 /* setup coroutine call */ 1713 /* setup coroutine call */
1566 init_perl (aTHX_ next); 1714 init_perl (aTHX_ next);
1567 } 1715 }
1568 else 1716 else
1569 load_perl (aTHX_ next); 1717 load_perl (aTHX_ next);
1570 1718
1571 /* possibly untie and reuse the cctx */ 1719 /* possibly untie and reuse the cctx */
1572 if (expect_true ( 1720 if (ecb_expect_true (
1573 cctx_current->idle_sp == STACKLEVEL 1721 cctx_current->idle_sp == STACKLEVEL
1574 && !(cctx_current->flags & CC_TRACE) 1722 && !(cctx_current->flags & CC_TRACE)
1575 && !force_cctx 1723 && !force_cctx
1576 )) 1724 ))
1577 { 1725 {
1578 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1726 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1579 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1727 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1580 1728
1581 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1729 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1582 /* without this the next cctx_get might destroy the running cctx while still in use */ 1730 /* without this the next cctx_get might destroy the running cctx while still in use */
1583 if (expect_false (CCTX_EXPIRED (cctx_current))) 1731 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1584 if (expect_true (!next->cctx)) 1732 if (ecb_expect_true (!next->cctx))
1585 next->cctx = cctx_get (aTHX); 1733 next->cctx = cctx_get (aTHX);
1586 1734
1587 cctx_put (cctx_current); 1735 cctx_put (cctx_current);
1588 } 1736 }
1589 else 1737 else
1590 prev->cctx = cctx_current; 1738 prev->cctx = cctx_current;
1591 1739
1592 ++next->usecount; 1740 ++next->usecount;
1593 1741
1594 cctx_prev = cctx_current; 1742 cctx_prev = cctx_current;
1595 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1743 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1596 1744
1597 next->cctx = 0; 1745 next->cctx = 0;
1598 1746
1599 if (expect_false (cctx_prev != cctx_current)) 1747 if (ecb_expect_false (cctx_prev != cctx_current))
1600 { 1748 {
1601 cctx_prev->top_env = PL_top_env; 1749 cctx_prev->top_env = PL_top_env;
1602 PL_top_env = cctx_current->top_env; 1750 PL_top_env = cctx_current->top_env;
1603 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1751 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1604 } 1752 }
… …
1610#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1758#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1611#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1759#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1612 1760
1613/** high level stuff ********************************************************/ 1761/** high level stuff ********************************************************/
1614 1762
1763/* this function is actually Coro, not Coro::State, but we call it from here */
1764/* because it is convenient - but it hasn't been declared yet for that reason */
1615static int 1765static void
1766coro_call_on_destroy (pTHX_ struct coro *coro);
1767
1768static void
1616coro_state_destroy (pTHX_ struct coro *coro) 1769coro_state_destroy (pTHX_ struct coro *coro)
1617{ 1770{
1618 if (coro->flags & CF_DESTROYED) 1771 if (coro->flags & CF_ZOMBIE)
1619 return 0; 1772 return;
1620 1773
1621 if (coro->on_destroy && !PL_dirty)
1622 coro->on_destroy (aTHX_ coro); 1774 slf_destroy (aTHX_ coro);
1623 1775
1624 coro->flags |= CF_DESTROYED; 1776 coro->flags |= CF_ZOMBIE;
1625 1777
1626 if (coro->flags & CF_READY) 1778 if (coro->flags & CF_READY)
1627 { 1779 {
1628 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1780 /* reduce nready, as destroying a ready coro effectively unreadies it */
1629 /* alternative: look through all ready queues and remove the coro */ 1781 /* alternative: look through all ready queues and remove the coro */
1630 --coro_nready; 1782 --coro_nready;
1631 } 1783 }
1632 else 1784 else
1633 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1785 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1786
1787 if (coro->next) coro->next->prev = coro->prev;
1788 if (coro->prev) coro->prev->next = coro->next;
1789 if (coro == coro_first) coro_first = coro->next;
1634 1790
1635 if (coro->mainstack 1791 if (coro->mainstack
1636 && coro->mainstack != main_mainstack 1792 && coro->mainstack != main_mainstack
1637 && coro->slot 1793 && coro->slot
1638 && !PL_dirty) 1794 && !PL_dirty)
1639 destroy_perl (aTHX_ coro); 1795 destroy_perl (aTHX_ coro);
1640 1796
1641 if (coro->next) coro->next->prev = coro->prev;
1642 if (coro->prev) coro->prev->next = coro->next;
1643 if (coro == coro_first) coro_first = coro->next;
1644
1645 cctx_destroy (coro->cctx); 1797 cctx_destroy (coro->cctx);
1646 SvREFCNT_dec (coro->startcv); 1798 SvREFCNT_dec (coro->startcv);
1647 SvREFCNT_dec (coro->args); 1799 SvREFCNT_dec (coro->args);
1648 SvREFCNT_dec (coro->swap_sv); 1800 SvREFCNT_dec (coro->swap_sv);
1649 SvREFCNT_dec (CORO_THROW); 1801 SvREFCNT_dec (CORO_THROW);
1650 1802
1651 return 1; 1803 coro_call_on_destroy (aTHX_ coro);
1804
1805 /* more destruction mayhem in coro_state_free */
1652} 1806}
1653 1807
1654static int 1808static int
1655coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1809coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1656{ 1810{
1657 struct coro *coro = (struct coro *)mg->mg_ptr; 1811 struct coro *coro = (struct coro *)mg->mg_ptr;
1658 mg->mg_ptr = 0; 1812 mg->mg_ptr = 0;
1659 1813
1660 coro->hv = 0;
1661
1662 if (--coro->refcnt < 0)
1663 {
1664 coro_state_destroy (aTHX_ coro); 1814 coro_state_destroy (aTHX_ coro);
1815 SvREFCNT_dec (coro->on_destroy);
1816 SvREFCNT_dec (coro->status);
1817
1665 Safefree (coro); 1818 Safefree (coro);
1666 }
1667 1819
1668 return 0; 1820 return 0;
1669} 1821}
1670 1822
1671static int 1823static int ecb_cold
1672coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1824coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1673{ 1825{
1674 struct coro *coro = (struct coro *)mg->mg_ptr; 1826 /* called when perl clones the current process the slow way (windows process emulation) */
1675 1827 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1676 ++coro->refcnt; 1828 mg->mg_ptr = 0;
1829 mg->mg_virtual = 0;
1677 1830
1678 return 0; 1831 return 0;
1679} 1832}
1680 1833
1681static MGVTBL coro_state_vtbl = { 1834static MGVTBL coro_state_vtbl = {
… …
1706 TRANSFER (ta, 1); 1859 TRANSFER (ta, 1);
1707} 1860}
1708 1861
1709/** Coro ********************************************************************/ 1862/** Coro ********************************************************************/
1710 1863
1711INLINE void 1864ecb_inline void
1712coro_enq (pTHX_ struct coro *coro) 1865coro_enq (pTHX_ struct coro *coro)
1713{ 1866{
1714 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1867 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1715 1868
1716 SvREFCNT_inc_NN (coro->hv); 1869 SvREFCNT_inc_NN (coro->hv);
… …
1718 coro->next_ready = 0; 1871 coro->next_ready = 0;
1719 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1872 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1720 ready [1] = coro; 1873 ready [1] = coro;
1721} 1874}
1722 1875
1723INLINE struct coro * 1876ecb_inline struct coro *
1724coro_deq (pTHX) 1877coro_deq (pTHX)
1725{ 1878{
1726 int prio; 1879 int prio;
1727 1880
1728 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1881 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1781{ 1934{
1782 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1935 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1783} 1936}
1784 1937
1785/* expects to own a reference to next->hv */ 1938/* expects to own a reference to next->hv */
1786INLINE void 1939ecb_inline void
1787prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1940prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1788{ 1941{
1789 SV *prev_sv = SvRV (coro_current); 1942 SV *prev_sv = SvRV (coro_current);
1790 1943
1791 ta->prev = SvSTATE_hv (prev_sv); 1944 ta->prev = SvSTATE_hv (prev_sv);
… …
1804{ 1957{
1805 for (;;) 1958 for (;;)
1806 { 1959 {
1807 struct coro *next = coro_deq (aTHX); 1960 struct coro *next = coro_deq (aTHX);
1808 1961
1809 if (expect_true (next)) 1962 if (ecb_expect_true (next))
1810 { 1963 {
1811 /* cannot transfer to destroyed coros, skip and look for next */ 1964 /* cannot transfer to destroyed coros, skip and look for next */
1812 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1965 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1813 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1966 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1814 else 1967 else
1815 { 1968 {
1816 next->flags &= ~CF_READY; 1969 next->flags &= ~CF_READY;
1817 --coro_nready; 1970 --coro_nready;
… …
1825 /* nothing to schedule: call the idle handler */ 1978 /* nothing to schedule: call the idle handler */
1826 if (SvROK (sv_idle) 1979 if (SvROK (sv_idle)
1827 && SvOBJECT (SvRV (sv_idle))) 1980 && SvOBJECT (SvRV (sv_idle)))
1828 { 1981 {
1829 if (SvRV (sv_idle) == SvRV (coro_current)) 1982 if (SvRV (sv_idle) == SvRV (coro_current))
1983 {
1984 require_pv ("Carp");
1985
1986 {
1987 dSP;
1988
1989 ENTER;
1990 SAVETMPS;
1991
1992 PUSHMARK (SP);
1830 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); 1993 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1994 PUTBACK;
1995 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1996
1997 FREETMPS;
1998 LEAVE;
1999 }
2000 }
1831 2001
1832 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 2002 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1833 api_ready (aTHX_ SvRV (sv_idle)); 2003 api_ready (aTHX_ SvRV (sv_idle));
1834 --coro_nready; 2004 --coro_nready;
1835 } 2005 }
… …
1850 } 2020 }
1851 } 2021 }
1852 } 2022 }
1853} 2023}
1854 2024
1855INLINE void 2025ecb_inline void
1856prepare_cede (pTHX_ struct coro_transfer_args *ta) 2026prepare_cede (pTHX_ struct coro_transfer_args *ta)
1857{ 2027{
1858 api_ready (aTHX_ coro_current); 2028 api_ready (aTHX_ coro_current);
1859 prepare_schedule (aTHX_ ta); 2029 prepare_schedule (aTHX_ ta);
1860} 2030}
1861 2031
1862INLINE void 2032ecb_inline void
1863prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2033prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1864{ 2034{
1865 SV *prev = SvRV (coro_current); 2035 SV *prev = SvRV (coro_current);
1866 2036
1867 if (coro_nready) 2037 if (coro_nready)
… …
1897{ 2067{
1898 struct coro_transfer_args ta; 2068 struct coro_transfer_args ta;
1899 2069
1900 prepare_cede (aTHX_ &ta); 2070 prepare_cede (aTHX_ &ta);
1901 2071
1902 if (expect_true (ta.prev != ta.next)) 2072 if (ecb_expect_true (ta.prev != ta.next))
1903 { 2073 {
1904 TRANSFER (ta, 1); 2074 TRANSFER (ta, 1);
1905 return 1; 2075 return 1;
1906 } 2076 }
1907 else 2077 else
… …
1950 coro->slot->runops = RUNOPS_DEFAULT; 2120 coro->slot->runops = RUNOPS_DEFAULT;
1951 } 2121 }
1952} 2122}
1953 2123
1954static void 2124static void
2125coro_push_av (pTHX_ AV *av, I32 gimme_v)
2126{
2127 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2128 {
2129 dSP;
2130
2131 if (gimme_v == G_SCALAR)
2132 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2133 else
2134 {
2135 int i;
2136 EXTEND (SP, AvFILLp (av) + 1);
2137
2138 for (i = 0; i <= AvFILLp (av); ++i)
2139 PUSHs (AvARRAY (av)[i]);
2140 }
2141
2142 PUTBACK;
2143 }
2144}
2145
2146static void
2147coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2148{
2149 if (!coro->on_destroy)
2150 coro->on_destroy = newAV ();
2151
2152 av_push (coro->on_destroy, cb);
2153}
2154
2155static void
2156slf_destroy_join (pTHX_ struct CoroSLF *frame)
2157{
2158 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2159}
2160
2161static int
2162slf_check_join (pTHX_ struct CoroSLF *frame)
2163{
2164 struct coro *coro = (struct coro *)frame->data;
2165
2166 if (!coro->status)
2167 return 1;
2168
2169 frame->destroy = 0;
2170
2171 coro_push_av (aTHX_ coro->status, GIMME_V);
2172
2173 SvREFCNT_dec ((SV *)coro->hv);
2174
2175 return 0;
2176}
2177
2178static void
2179slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2180{
2181 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2182
2183 if (items > 1)
2184 croak ("join called with too many arguments");
2185
2186 if (coro->status)
2187 frame->prepare = prepare_nop;
2188 else
2189 {
2190 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2191 frame->prepare = prepare_schedule;
2192 }
2193
2194 frame->check = slf_check_join;
2195 frame->destroy = slf_destroy_join;
2196 frame->data = (void *)coro;
2197 SvREFCNT_inc (coro->hv);
2198}
2199
2200static void
1955coro_call_on_destroy (pTHX_ struct coro *coro) 2201coro_call_on_destroy (pTHX_ struct coro *coro)
1956{ 2202{
1957 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2203 AV *od = coro->on_destroy;
1958 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1959 2204
1960 if (on_destroyp) 2205 if (!od)
1961 { 2206 return;
1962 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1963 2207
2208 coro->on_destroy = 0;
2209 sv_2mortal ((SV *)od);
2210
1964 while (AvFILLp (on_destroy) >= 0) 2211 while (AvFILLp (od) >= 0)
2212 {
2213 SV *cb = sv_2mortal (av_pop (od));
2214
2215 /* coro hv's (and only hv's at the moment) are supported as well */
2216 if (SvSTATEhv_p (aTHX_ cb))
2217 api_ready (aTHX_ cb);
2218 else
1965 { 2219 {
1966 dSP; /* don't disturb outer sp */ 2220 dSP; /* don't disturb outer sp */
1967 SV *cb = av_pop (on_destroy);
1968
1969 PUSHMARK (SP); 2221 PUSHMARK (SP);
1970 2222
1971 if (statusp) 2223 if (coro->status)
1972 { 2224 {
1973 int i; 2225 PUTBACK;
1974 AV *status = (AV *)SvRV (*statusp); 2226 coro_push_av (aTHX_ coro->status, G_ARRAY);
1975 EXTEND (SP, AvFILLp (status) + 1); 2227 SPAGAIN;
1976
1977 for (i = 0; i <= AvFILLp (status); ++i)
1978 PUSHs (AvARRAY (status)[i]);
1979 } 2228 }
1980 2229
1981 PUTBACK; 2230 PUTBACK;
1982 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2231 call_sv (cb, G_VOID | G_DISCARD);
1983 } 2232 }
1984 } 2233 }
1985} 2234}
1986 2235
1987static void 2236static void
1988slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2237coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1989{ 2238{
1990 int i; 2239 AV *av;
1991 HV *hv = (HV *)SvRV (coro_current); 2240
1992 AV *av = newAV (); 2241 if (coro->status)
2242 {
2243 av = coro->status;
2244 av_clear (av);
2245 }
2246 else
2247 av = coro->status = newAV ();
1993 2248
1994 /* items are actually not so common, so optimise for this case */ 2249 /* items are actually not so common, so optimise for this case */
1995 if (items) 2250 if (items)
1996 { 2251 {
2252 int i;
2253
1997 av_extend (av, items - 1); 2254 av_extend (av, items - 1);
1998 2255
1999 for (i = 0; i < items; ++i) 2256 for (i = 0; i < items; ++i)
2000 av_push (av, SvREFCNT_inc_NN (arg [i])); 2257 av_push (av, SvREFCNT_inc_NN (arg [i]));
2001 } 2258 }
2259}
2002 2260
2003 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2261static void
2004 2262slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2263{
2005 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2264 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2006 api_ready (aTHX_ sv_manager); 2265 api_ready (aTHX_ sv_manager);
2007 2266
2008 frame->prepare = prepare_schedule; 2267 frame->prepare = prepare_schedule;
2009 frame->check = slf_check_repeat; 2268 frame->check = slf_check_repeat;
2010 2269
2011 /* as a minor optimisation, we could unwind all stacks here */ 2270 /* as a minor optimisation, we could unwind all stacks here */
2012 /* but that puts extra pressure on pp_slf, and is not worth much */ 2271 /* but that puts extra pressure on pp_slf, and is not worth much */
2013 /*coro_unwind_stacks (aTHX);*/ 2272 /*coro_unwind_stacks (aTHX);*/
2273}
2274
2275static void
2276slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2277{
2278 HV *coro_hv = (HV *)SvRV (coro_current);
2279
2280 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2281 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2282}
2283
2284static void
2285slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2286{
2287 HV *coro_hv;
2288 struct coro *coro;
2289
2290 if (items <= 0)
2291 croak ("Coro::cancel called without coro object,");
2292
2293 coro = SvSTATE (arg [0]);
2294 coro_hv = coro->hv;
2295
2296 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2297
2298 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2299 {
2300 /* coro currently busy cancelling something, so just notify it */
2301 coro->slf_frame.data = (void *)coro;
2302
2303 frame->prepare = prepare_nop;
2304 frame->check = slf_check_nop;
2305 }
2306 else if (coro_hv == (HV *)SvRV (coro_current))
2307 {
2308 /* cancelling the current coro is allowed, and equals terminate */
2309 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2310 }
2311 else
2312 {
2313 struct coro *self = SvSTATE_current;
2314
2315 if (!self)
2316 croak ("Coro::cancel called outside of thread content,");
2317
2318 /* otherwise we cancel directly, purely for speed reasons
2319 * unfortunately, this requires some magic trickery, as
2320 * somebody else could cancel us, so we have to fight the cancellation.
2321 * this is ugly, and hopefully fully worth the extra speed.
2322 * besides, I can't get the slow-but-safe version working...
2323 */
2324 slf_frame.data = 0;
2325 self->flags |= CF_NOCANCEL;
2326 coro_state_destroy (aTHX_ coro);
2327 self->flags &= ~CF_NOCANCEL;
2328
2329 if (slf_frame.data)
2330 {
2331 /* while we were busy we have been cancelled, so terminate */
2332 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2333 }
2334 else
2335 {
2336 frame->prepare = prepare_nop;
2337 frame->check = slf_check_nop;
2338 }
2339 }
2340}
2341
2342static int
2343slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2344{
2345 frame->prepare = 0;
2346 coro_unwind_stacks (aTHX);
2347
2348 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2349
2350 return 1;
2351}
2352
2353static int
2354safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2355{
2356 if (coro->cctx)
2357 croak ("coro inside C callback, unable to cancel at this time, caught");
2358
2359 if (coro->flags & CF_NEW)
2360 {
2361 coro_set_status (aTHX_ coro, arg, items);
2362 coro_state_destroy (aTHX_ coro);
2363 }
2364 else
2365 {
2366 if (!coro->slf_frame.prepare)
2367 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2368
2369 slf_destroy (aTHX_ coro);
2370
2371 coro_set_status (aTHX_ coro, arg, items);
2372 coro->slf_frame.prepare = prepare_nop;
2373 coro->slf_frame.check = slf_check_safe_cancel;
2374
2375 api_ready (aTHX_ (SV *)coro->hv);
2376 }
2377
2378 return 1;
2014} 2379}
2015 2380
2016/*****************************************************************************/ 2381/*****************************************************************************/
2017/* async pool handler */ 2382/* async pool handler */
2018 2383
… …
2049slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2414slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2050{ 2415{
2051 HV *hv = (HV *)SvRV (coro_current); 2416 HV *hv = (HV *)SvRV (coro_current);
2052 struct coro *coro = SvSTATE_hv ((SV *)hv); 2417 struct coro *coro = SvSTATE_hv ((SV *)hv);
2053 2418
2054 if (expect_true (coro->saved_deffh)) 2419 if (ecb_expect_true (coro->saved_deffh))
2055 { 2420 {
2056 /* subsequent iteration */ 2421 /* subsequent iteration */
2057 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2422 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2058 coro->saved_deffh = 0; 2423 coro->saved_deffh = 0;
2059 2424
2060 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2425 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2061 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2426 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2062 { 2427 {
2063 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2428 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2064 coro->invoke_av = newAV (); 2429 return;
2065
2066 frame->prepare = prepare_nop;
2067 } 2430 }
2068 else 2431 else
2069 { 2432 {
2070 av_clear (GvAV (PL_defgv)); 2433 av_clear (GvAV (PL_defgv));
2071 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2434 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2072 2435
2436 if (ecb_expect_false (coro->swap_sv))
2437 {
2438 swap_svs_leave (coro);
2439 SvREFCNT_dec_NN (coro->swap_sv);
2440 coro->swap_sv = 0;
2441 }
2442
2073 coro->prio = 0; 2443 coro->prio = 0;
2074 2444
2075 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2445 if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE))
2076 api_trace (aTHX_ coro_current, 0); 2446 api_trace (aTHX_ coro_current, 0);
2077 2447
2078 frame->prepare = prepare_schedule; 2448 frame->prepare = prepare_schedule;
2079 av_push (av_async_pool, SvREFCNT_inc (hv)); 2449 av_push (av_async_pool, SvREFCNT_inc (hv));
2080 } 2450 }
… …
2121 2491
2122static int 2492static int
2123slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2493slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2124{ 2494{
2125 SV *data = (SV *)frame->data; 2495 SV *data = (SV *)frame->data;
2126 2496
2127 if (CORO_THROW) 2497 if (CORO_THROW)
2128 return 0; 2498 return 0;
2129 2499
2130 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2500 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2131 return 1; 2501 return 1;
… …
2167 cb = sv_2mortal (coro->rouse_cb); 2537 cb = sv_2mortal (coro->rouse_cb);
2168 coro->rouse_cb = 0; 2538 coro->rouse_cb = 0;
2169 } 2539 }
2170 2540
2171 if (!SvROK (cb) 2541 if (!SvROK (cb)
2172 || SvTYPE (SvRV (cb)) != SVt_PVCV 2542 || SvTYPE (SvRV (cb)) != SVt_PVCV
2173 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2543 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2174 croak ("Coro::rouse_wait called with illegal callback argument,"); 2544 croak ("Coro::rouse_wait called with illegal callback argument,");
2175 2545
2176 { 2546 {
2177 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2547 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2294static void 2664static void
2295slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2665slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2296{ 2666{
2297 frame->prepare = prepare_cede_notself; 2667 frame->prepare = prepare_cede_notself;
2298 frame->check = slf_check_nop; 2668 frame->check = slf_check_nop;
2669}
2670
2671/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2672static void
2673slf_destroy (pTHX_ struct coro *coro)
2674{
2675 struct CoroSLF frame = coro->slf_frame;
2676
2677 /*
2678 * The on_destroy below most likely is from an SLF call.
2679 * Since by definition the SLF call will not finish when we destroy
2680 * the coro, we will have to force-finish it here, otherwise
2681 * cleanup functions cannot call SLF functions.
2682 */
2683 coro->slf_frame.prepare = 0;
2684
2685 /* this callback is reserved for slf functions needing to do cleanup */
2686 if (frame.destroy && frame.prepare && !PL_dirty)
2687 frame.destroy (aTHX_ &frame);
2299} 2688}
2300 2689
2301/* 2690/*
2302 * these not obviously related functions are all rolled into one 2691 * these not obviously related functions are all rolled into one
2303 * function to increase chances that they all will call transfer with the same 2692 * function to increase chances that they all will call transfer with the same
… …
2310 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2699 I32 checkmark; /* mark SP to see how many elements check has pushed */
2311 2700
2312 /* set up the slf frame, unless it has already been set-up */ 2701 /* set up the slf frame, unless it has already been set-up */
2313 /* the latter happens when a new coro has been started */ 2702 /* the latter happens when a new coro has been started */
2314 /* or when a new cctx was attached to an existing coroutine */ 2703 /* or when a new cctx was attached to an existing coroutine */
2315 if (expect_true (!slf_frame.prepare)) 2704 if (ecb_expect_true (!slf_frame.prepare))
2316 { 2705 {
2317 /* first iteration */ 2706 /* first iteration */
2318 dSP; 2707 dSP;
2319 SV **arg = PL_stack_base + TOPMARK + 1; 2708 SV **arg = PL_stack_base + TOPMARK + 1;
2320 int items = SP - arg; /* args without function object */ 2709 int items = SP - arg; /* args without function object */
… …
2361 while (slf_frame.check (aTHX_ &slf_frame)); 2750 while (slf_frame.check (aTHX_ &slf_frame));
2362 2751
2363 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2752 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2364 2753
2365 /* exception handling */ 2754 /* exception handling */
2366 if (expect_false (CORO_THROW)) 2755 if (ecb_expect_false (CORO_THROW))
2367 { 2756 {
2368 SV *exception = sv_2mortal (CORO_THROW); 2757 SV *exception = sv_2mortal (CORO_THROW);
2369 2758
2370 CORO_THROW = 0; 2759 CORO_THROW = 0;
2371 sv_setsv (ERRSV, exception); 2760 sv_setsv (ERRSV, exception);
2372 croak (0); 2761 croak (0);
2373 } 2762 }
2374 2763
2375 /* return value handling - mostly like entersub */ 2764 /* return value handling - mostly like entersub */
2376 /* make sure we put something on the stack in scalar context */ 2765 /* make sure we put something on the stack in scalar context */
2377 if (GIMME_V == G_SCALAR) 2766 if (GIMME_V == G_SCALAR
2767 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2378 { 2768 {
2379 dSP; 2769 dSP;
2380 SV **bot = PL_stack_base + checkmark; 2770 SV **bot = PL_stack_base + checkmark;
2381 2771
2382 if (sp == bot) /* too few, push undef */ 2772 if (sp == bot) /* too few, push undef */
2383 bot [1] = &PL_sv_undef; 2773 bot [1] = &PL_sv_undef;
2384 else if (sp != bot + 1) /* too many, take last one */ 2774 else /* too many, take last one */
2385 bot [1] = *sp; 2775 bot [1] = *sp;
2386 2776
2387 SP = bot + 1; 2777 SP = bot + 1;
2388 2778
2389 PUTBACK; 2779 PUTBACK;
… …
2487{ 2877{
2488 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); 2878 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2489 on_enterleave_call (aTHX_ sv_2mortal (cb)); 2879 on_enterleave_call (aTHX_ sv_2mortal (cb));
2490} 2880}
2491 2881
2882static void
2883enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
2884{
2885 if (!hook)
2886 return;
2887
2888 if (!*avp)
2889 {
2890 *avp = newAV ();
2891 AvREAL_off (*avp);
2892 }
2893
2894 av_push (*avp, (SV *)hook);
2895 av_push (*avp, (SV *)arg);
2896}
2897
2898static void
2899enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
2900{
2901 AV *av = *avp;
2902 int i;
2903
2904 if (!av)
2905 return;
2906
2907 for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
2908 if (AvARRAY (av)[i] == (SV *)hook)
2909 {
2910 if (execute)
2911 hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
2912
2913 memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
2914 av_pop (av);
2915 av_pop (av);
2916 break;
2917 }
2918
2919 if (AvFILLp (av) >= 0)
2920 {
2921 *avp = 0;
2922 SvREFCNT_dec_NN (av);
2923 }
2924}
2925
2926static void
2927api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2928{
2929 struct coro *coro = SvSTATE (coro_sv);
2930
2931 if (SvSTATE_current == coro)
2932 if (enter)
2933 enter (aTHX_ enter_arg);
2934
2935 enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
2936 enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
2937}
2938
2939static void
2940api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
2941{
2942 struct coro *coro = SvSTATE (coro_sv);
2943
2944 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2945 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
2946}
2947
2948static void
2949savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
2950{
2951 struct coro *coro = SvSTATE_current;
2952
2953 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2954}
2955
2956static void
2957savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
2958{
2959 struct coro *coro = SvSTATE_current;
2960
2961 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
2962}
2963
2964static void
2965api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2966{
2967 api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
2968
2969 /* this ought to be much cheaper than malloc + a single destructor call */
2970 if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
2971 if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2972}
2973
2492/*****************************************************************************/ 2974/*****************************************************************************/
2493/* PerlIO::cede */ 2975/* PerlIO::cede */
2494 2976
2495typedef struct 2977typedef struct
2496{ 2978{
2497 PerlIOBuf base; 2979 PerlIOBuf base;
2498 NV next, every; 2980 NV next, every;
2499} PerlIOCede; 2981} PerlIOCede;
2500 2982
2501static IV 2983static IV ecb_cold
2502PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2984PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2503{ 2985{
2504 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2986 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2505 2987
2506 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2988 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2507 self->next = nvtime () + self->every; 2989 self->next = nvtime () + self->every;
2508 2990
2509 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2991 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2510} 2992}
2511 2993
2512static SV * 2994static SV * ecb_cold
2513PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2995PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2514{ 2996{
2515 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2997 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2516 2998
2517 return newSVnv (self->every); 2999 return newSVnv (self->every);
… …
2624 XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); 3106 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2625 PUTBACK; 3107 PUTBACK;
2626 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); 3108 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2627 } 3109 }
2628 3110
2629 SvREFCNT_dec (cb); 3111 SvREFCNT_dec_NN (cb);
2630 } 3112 }
2631} 3113}
2632 3114
2633static void 3115static void
2634coro_semaphore_on_destroy (pTHX_ struct coro *coro) 3116coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2635{ 3117{
2636 /* call $sem->adjust (0) to possibly wake up some other waiters */ 3118 /* call $sem->adjust (0) to possibly wake up some other waiters */
2637 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 3119 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2638} 3120}
2639 3121
2640static int 3122static int
2641slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 3123slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2642{ 3124{
2643 AV *av = (AV *)frame->data; 3125 AV *av = (AV *)frame->data;
2644 SV *count_sv = AvARRAY (av)[0]; 3126 SV *count_sv = AvARRAY (av)[0];
3127 SV *coro_hv = SvRV (coro_current);
3128
3129 frame->destroy = 0;
2645 3130
2646 /* if we are about to throw, don't actually acquire the lock, just throw */ 3131 /* if we are about to throw, don't actually acquire the lock, just throw */
2647 if (CORO_THROW) 3132 if (ecb_expect_false (CORO_THROW))
3133 {
3134 /* we still might be responsible for the semaphore, so wake up others */
3135 coro_semaphore_adjust (aTHX_ av, 0);
3136
2648 return 0; 3137 return 0;
3138 }
2649 else if (SvIVX (count_sv) > 0) 3139 else if (SvIVX (count_sv) > 0)
2650 { 3140 {
2651 SvSTATE_current->on_destroy = 0;
2652
2653 if (acquire) 3141 if (acquire)
2654 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3142 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2655 else 3143 else
2656 coro_semaphore_adjust (aTHX_ av, 0); 3144 coro_semaphore_adjust (aTHX_ av, 0);
2657 3145
… …
2661 { 3149 {
2662 int i; 3150 int i;
2663 /* if we were woken up but can't down, we look through the whole */ 3151 /* if we were woken up but can't down, we look through the whole */
2664 /* waiters list and only add us if we aren't in there already */ 3152 /* waiters list and only add us if we aren't in there already */
2665 /* this avoids some degenerate memory usage cases */ 3153 /* this avoids some degenerate memory usage cases */
2666 3154 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2667 for (i = 1; i <= AvFILLp (av); ++i)
2668 if (AvARRAY (av)[i] == SvRV (coro_current)) 3155 if (AvARRAY (av)[i] == coro_hv)
2669 return 1; 3156 return 1;
2670 3157
2671 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3158 av_push (av, SvREFCNT_inc (coro_hv));
2672 return 1; 3159 return 1;
2673 } 3160 }
2674} 3161}
2675 3162
2676static int 3163static int
… …
2699 { 3186 {
2700 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3187 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2701 3188
2702 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3189 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2703 frame->prepare = prepare_schedule; 3190 frame->prepare = prepare_schedule;
2704
2705 /* to avoid race conditions when a woken-up coro gets terminated */ 3191 /* to avoid race conditions when a woken-up coro gets terminated */
2706 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3192 /* we arrange for a temporary on_destroy that calls adjust (0) */
2707 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3193 frame->destroy = coro_semaphore_destroy;
2708 } 3194 }
2709} 3195}
2710 3196
2711static void 3197static void
2712slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3198slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2770 { 3256 {
2771 api_ready (aTHX_ cb); 3257 api_ready (aTHX_ cb);
2772 sv_setiv (cb, 0); /* signal waiter */ 3258 sv_setiv (cb, 0); /* signal waiter */
2773 } 3259 }
2774 3260
2775 SvREFCNT_dec (cb); 3261 SvREFCNT_dec_NN (cb);
2776 3262
2777 --count; 3263 --count;
2778 } 3264 }
2779} 3265}
2780 3266
… …
2794 { 3280 {
2795 SV *cb_cv = s_get_cv_croak (arg [1]); 3281 SV *cb_cv = s_get_cv_croak (arg [1]);
2796 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3282 av_push (av, SvREFCNT_inc_NN (cb_cv));
2797 3283
2798 if (SvIVX (AvARRAY (av)[0])) 3284 if (SvIVX (AvARRAY (av)[0]))
2799 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3285 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2800 3286
2801 frame->prepare = prepare_nop; 3287 frame->prepare = prepare_nop;
2802 frame->check = slf_check_nop; 3288 frame->check = slf_check_nop;
2803 } 3289 }
2804 else if (SvIVX (AvARRAY (av)[0])) 3290 else if (SvIVX (AvARRAY (av)[0]))
… …
2865 } 3351 }
2866 3352
2867 av_push (state, data_sv); 3353 av_push (state, data_sv);
2868 3354
2869 api_ready (aTHX_ coro); 3355 api_ready (aTHX_ coro);
2870 SvREFCNT_dec (coro); 3356 SvREFCNT_dec_NN (coro);
2871 SvREFCNT_dec ((AV *)state); 3357 SvREFCNT_dec_NN ((AV *)state);
2872} 3358}
2873 3359
2874static int 3360static int
2875slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3361slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2876{ 3362{
… …
2881 /* it quickly returns */ 3367 /* it quickly returns */
2882 if (CORO_THROW) 3368 if (CORO_THROW)
2883 return 0; 3369 return 0;
2884 3370
2885 /* one element that is an RV? repeat! */ 3371 /* one element that is an RV? repeat! */
2886 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3372 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2887 return 1; 3373 return 1;
2888 3374
2889 /* restore status */ 3375 /* restore status */
2890 { 3376 {
2891 SV *data_sv = av_pop (state); 3377 SV *data_sv = av_pop (state);
… …
2894 errno = data->errorno; 3380 errno = data->errorno;
2895 PL_laststype = data->laststype; 3381 PL_laststype = data->laststype;
2896 PL_laststatval = data->laststatval; 3382 PL_laststatval = data->laststatval;
2897 PL_statcache = data->statcache; 3383 PL_statcache = data->statcache;
2898 3384
2899 SvREFCNT_dec (data_sv); 3385 SvREFCNT_dec_NN (data_sv);
2900 } 3386 }
2901 3387
2902 /* push result values */ 3388 /* push result values */
2903 { 3389 {
2904 dSP; 3390 dSP;
… …
2930 dSP; 3416 dSP;
2931 3417
2932 static SV *prio_cv; 3418 static SV *prio_cv;
2933 static SV *prio_sv; 3419 static SV *prio_sv;
2934 3420
2935 if (expect_false (!prio_cv)) 3421 if (ecb_expect_false (!prio_cv))
2936 { 3422 {
2937 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3423 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2938 prio_sv = newSViv (0); 3424 prio_sv = newSViv (0);
2939 } 3425 }
2940 3426
… …
2966 /* now call the AIO function - we assume our request is uncancelable */ 3452 /* now call the AIO function - we assume our request is uncancelable */
2967 PUTBACK; 3453 PUTBACK;
2968 call_sv ((SV *)req, G_VOID | G_DISCARD); 3454 call_sv ((SV *)req, G_VOID | G_DISCARD);
2969 } 3455 }
2970 3456
2971 /* now that the requets is going, we loop toll we have a result */ 3457 /* now that the request is going, we loop till we have a result */
2972 frame->data = (void *)state; 3458 frame->data = (void *)state;
2973 frame->prepare = prepare_schedule; 3459 frame->prepare = prepare_schedule;
2974 frame->check = slf_check_aio_req; 3460 frame->check = slf_check_aio_req;
2975} 3461}
2976 3462
… …
3046 } 3532 }
3047 3533
3048 return coro_sv; 3534 return coro_sv;
3049} 3535}
3050 3536
3537#ifndef __cplusplus
3538ecb_cold XS(boot_Coro__State);
3539#endif
3540
3541#if CORO_JIT
3542
3543static void ecb_noinline ecb_cold
3544pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3545{
3546 dSP;
3547 AV *av = newAV ();
3548
3549 av_store (av, 3, newSVuv (d));
3550 av_store (av, 2, newSVuv (c));
3551 av_store (av, 1, newSVuv (b));
3552 av_store (av, 0, newSVuv (a));
3553
3554 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3555
3556 PUTBACK;
3557}
3558
3559static void ecb_noinline ecb_cold
3560jit_init (pTHX)
3561{
3562 dSP;
3563 SV *load, *save;
3564 char *map_base;
3565 char *load_ptr, *save_ptr;
3566 STRLEN load_len, save_len, map_len;
3567 int count;
3568
3569 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3570
3571 PUSHMARK (SP);
3572 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3573 #include "state.h"
3574 count = call_pv ("Coro::State::_jit", G_ARRAY);
3575 SPAGAIN;
3576
3577 save = POPs; save_ptr = SvPVbyte (save, save_len);
3578 load = POPs; load_ptr = SvPVbyte (load, load_len);
3579
3580 map_len = load_len + save_len + 16;
3581
3582 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3583
3584 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3585
3586 load_perl_slots = (load_save_perl_slots_type)map_base;
3587 memcpy (map_base, load_ptr, load_len);
3588
3589 map_base += (load_len + 15) & ~15;
3590
3591 save_perl_slots = (load_save_perl_slots_type)map_base;
3592 memcpy (map_base, save_ptr, save_len);
3593
3594 /* we are good citizens and try to make the page read-only, so the evil evil */
3595 /* hackers might have it a bit more difficult */
3596 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3597
3598 PUTBACK;
3599 eval_pv ("undef &Coro::State::_jit", 1);
3600}
3601
3602#endif
3603
3051MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3604MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
3052 3605
3053PROTOTYPES: DISABLE 3606PROTOTYPES: DISABLE
3054 3607
3055BOOT: 3608BOOT:
3056{ 3609{
3610#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3611#include "state.h"
3057#ifdef USE_ITHREADS 3612#ifdef USE_ITHREADS
3058# if CORO_PTHREAD 3613# if CORO_PTHREAD
3059 coro_thx = PERL_GET_CONTEXT; 3614 coro_thx = PERL_GET_CONTEXT;
3060# endif 3615# endif
3061#endif 3616#endif
3062 BOOT_PAGESIZE; 3617 /* perl defines these to check for existance first, but why it doesn't */
3618 /* just create them one at init time is not clear to me, except for */
3619 /* programs trying to delete them, but... */
3620 /* anyway, we declare this as invalid and make sure they are initialised here */
3621 DEFSV;
3622 ERRSV;
3063 3623
3064 cctx_current = cctx_new_empty (); 3624 cctx_current = cctx_new_empty ();
3065 3625
3066 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3626 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
3067 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3627 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
3068 3628
3069 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3629 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
3070 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3630 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
3071 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; 3631 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
3072 3632
3073 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
3074 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); 3633 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
3075 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); 3634 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
3076 3635
3077 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 3636 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
3078 3637
… …
3107 coroapi.prepare_nop = prepare_nop; 3666 coroapi.prepare_nop = prepare_nop;
3108 coroapi.prepare_schedule = prepare_schedule; 3667 coroapi.prepare_schedule = prepare_schedule;
3109 coroapi.prepare_cede = prepare_cede; 3668 coroapi.prepare_cede = prepare_cede;
3110 coroapi.prepare_cede_notself = prepare_cede_notself; 3669 coroapi.prepare_cede_notself = prepare_cede_notself;
3111 3670
3112 { 3671 time_init (aTHX);
3113 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3114
3115 if (!svp) croak ("Time::HiRes is required");
3116 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3117
3118 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3119
3120 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3121 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3122 }
3123 3672
3124 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3673 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3674#if CORO_JIT
3675 PUTBACK;
3676 jit_init (aTHX);
3677 SPAGAIN;
3678#endif
3125} 3679}
3126 3680
3127SV * 3681SV *
3128new (SV *klass, ...) 3682new (SV *klass, ...)
3129 ALIAS: 3683 ALIAS:
… …
3136void 3690void
3137transfer (...) 3691transfer (...)
3138 PROTOTYPE: $$ 3692 PROTOTYPE: $$
3139 CODE: 3693 CODE:
3140 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3694 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3141
3142bool
3143_destroy (SV *coro_sv)
3144 CODE:
3145 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3146 OUTPUT:
3147 RETVAL
3148
3149void
3150_exit (int code)
3151 PROTOTYPE: $
3152 CODE:
3153 _exit (code);
3154 3695
3155SV * 3696SV *
3156clone (Coro::State coro) 3697clone (Coro::State coro)
3157 CODE: 3698 CODE:
3158{ 3699{
… …
3213void 3754void
3214list () 3755list ()
3215 PROTOTYPE: 3756 PROTOTYPE:
3216 PPCODE: 3757 PPCODE:
3217{ 3758{
3218 struct coro *coro; 3759 struct coro *coro;
3219 for (coro = coro_first; coro; coro = coro->next) 3760 for (coro = coro_first; coro; coro = coro->next)
3220 if (coro->hv) 3761 if (coro->hv)
3221 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3762 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3222} 3763}
3223 3764
… …
3228 CODE: 3769 CODE:
3229{ 3770{
3230 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3771 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3231 { 3772 {
3232 struct coro *current = SvSTATE_current; 3773 struct coro *current = SvSTATE_current;
3774 struct CoroSLF slf_save;
3233 3775
3234 if (current != coro) 3776 if (current != coro)
3235 { 3777 {
3236 PUTBACK; 3778 PUTBACK;
3237 save_perl (aTHX_ current); 3779 save_perl (aTHX_ current);
3238 load_perl (aTHX_ coro); 3780 load_perl (aTHX_ coro);
3781 /* the coro is most likely in an active SLF call.
3782 * while not strictly required (the code we execute is
3783 * not allowed to call any SLF functions), it's cleaner
3784 * to reinitialise the slf_frame and restore it later.
3785 * This might one day allow us to actually do SLF calls
3786 * from code executed here.
3787 */
3788 slf_save = slf_frame;
3789 slf_frame.prepare = 0;
3239 SPAGAIN; 3790 SPAGAIN;
3240 } 3791 }
3241 3792
3242 PUSHSTACK; 3793 PUSHSTACK;
3243 3794
… …
3253 SPAGAIN; 3804 SPAGAIN;
3254 3805
3255 if (current != coro) 3806 if (current != coro)
3256 { 3807 {
3257 PUTBACK; 3808 PUTBACK;
3809 slf_frame = slf_save;
3258 save_perl (aTHX_ coro); 3810 save_perl (aTHX_ coro);
3259 load_perl (aTHX_ current); 3811 load_perl (aTHX_ current);
3260 SPAGAIN; 3812 SPAGAIN;
3261 } 3813 }
3262 } 3814 }
… …
3267 PROTOTYPE: $ 3819 PROTOTYPE: $
3268 ALIAS: 3820 ALIAS:
3269 is_ready = CF_READY 3821 is_ready = CF_READY
3270 is_running = CF_RUNNING 3822 is_running = CF_RUNNING
3271 is_new = CF_NEW 3823 is_new = CF_NEW
3272 is_destroyed = CF_DESTROYED 3824 is_destroyed = CF_ZOMBIE
3825 is_zombie = CF_ZOMBIE
3273 is_suspended = CF_SUSPENDED 3826 is_suspended = CF_SUSPENDED
3274 CODE: 3827 CODE:
3275 RETVAL = boolSV (coro->flags & ix); 3828 RETVAL = boolSV (coro->flags & ix);
3276 OUTPUT: 3829 OUTPUT:
3277 RETVAL 3830 RETVAL
3278 3831
3279void 3832void
3280throw (Coro::State self, SV *exception = &PL_sv_undef) 3833throw (SV *self, SV *exception = &PL_sv_undef)
3281 PROTOTYPE: $;$ 3834 PROTOTYPE: $;$
3282 CODE: 3835 CODE:
3283{ 3836{
3837 struct coro *coro = SvSTATE (self);
3284 struct coro *current = SvSTATE_current; 3838 struct coro *current = SvSTATE_current;
3285 SV **exceptionp = self == current ? &CORO_THROW : &self->except; 3839 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3286 SvREFCNT_dec (*exceptionp); 3840 SvREFCNT_dec (*exceptionp);
3287 SvGETMAGIC (exception); 3841 SvGETMAGIC (exception);
3288 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; 3842 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3843
3844 api_ready (aTHX_ self);
3289} 3845}
3290 3846
3291void 3847void
3292api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3848api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3293 PROTOTYPE: $;$ 3849 PROTOTYPE: $;$
… …
3348 3904
3349void 3905void
3350cancel (Coro::State self) 3906cancel (Coro::State self)
3351 CODE: 3907 CODE:
3352 coro_state_destroy (aTHX_ self); 3908 coro_state_destroy (aTHX_ self);
3353 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3354
3355 3909
3356SV * 3910SV *
3357enable_times (int enabled = enable_times) 3911enable_times (int enabled = enable_times)
3358 CODE: 3912 CODE:
3359{ 3913{
… …
3372 3926
3373void 3927void
3374times (Coro::State self) 3928times (Coro::State self)
3375 PPCODE: 3929 PPCODE:
3376{ 3930{
3377 struct coro *current = SvSTATE (coro_current); 3931 struct coro *current = SvSTATE (coro_current);
3378 3932
3379 if (expect_false (current == self)) 3933 if (ecb_expect_false (current == self))
3380 { 3934 {
3381 coro_times_update (); 3935 coro_times_update ();
3382 coro_times_add (SvSTATE (coro_current)); 3936 coro_times_add (SvSTATE (coro_current));
3383 } 3937 }
3384 3938
3385 EXTEND (SP, 2); 3939 EXTEND (SP, 2);
3386 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3940 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3387 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3941 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3388 3942
3389 if (expect_false (current == self)) 3943 if (ecb_expect_false (current == self))
3390 coro_times_sub (SvSTATE (coro_current)); 3944 coro_times_sub (SvSTATE (coro_current));
3391} 3945}
3392 3946
3393void 3947void
3394swap_sv (Coro::State coro, SV *sv, SV *swapsv) 3948swap_sv (Coro::State coro, SV *sva, SV *svb)
3395 CODE: 3949 CODE:
3396{ 3950{
3397 struct coro *current = SvSTATE_current; 3951 struct coro *current = SvSTATE_current;
3952 AV *swap_sv;
3953 int i;
3954
3955 sva = SvRV (sva);
3956 svb = SvRV (svb);
3398 3957
3399 if (current == coro) 3958 if (current == coro)
3400 SWAP_SVS (current); 3959 SWAP_SVS_LEAVE (current);
3401 3960
3402 if (!coro->swap_sv) 3961 if (!coro->swap_sv)
3403 coro->swap_sv = newAV (); 3962 coro->swap_sv = newAV ();
3404 3963
3964 swap_sv = coro->swap_sv;
3965
3966 for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2)
3967 {
3968 SV *a = AvARRAY (swap_sv)[i ];
3969 SV *b = AvARRAY (swap_sv)[i + 1];
3970
3971 if (a == sva && b == svb)
3972 {
3973 SvREFCNT_dec_NN (a);
3974 SvREFCNT_dec_NN (b);
3975
3976 for (; i <= AvFILLp (swap_sv) - 2; i++)
3977 AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2];
3978
3979 AvFILLp (swap_sv) -= 2;
3980
3981 goto removed;
3982 }
3983 }
3984
3405 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); 3985 av_push (swap_sv, SvREFCNT_inc_NN (sva));
3406 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); 3986 av_push (swap_sv, SvREFCNT_inc_NN (svb));
3987
3988 removed:
3407 3989
3408 if (current == coro) 3990 if (current == coro)
3409 SWAP_SVS (current); 3991 SWAP_SVS_ENTER (current);
3410} 3992}
3411 3993
3412 3994
3413MODULE = Coro::State PACKAGE = Coro 3995MODULE = Coro::State PACKAGE = Coro
3414 3996
3415BOOT: 3997BOOT:
3416{ 3998{
3999 if (SVt_LAST > 32)
4000 croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
4001
3417 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 4002 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3418 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 4003 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3419 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 4004 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3420 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3421 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 4005 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3422 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 4006 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3423 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 4007 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3424 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 4008 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3425 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 4009 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3426 4010
3427 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 4011 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3428 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 4012 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3429 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 4013 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3430 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ 4014 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3431 4015
3432 coro_stash = gv_stashpv ("Coro", TRUE); 4016 coro_stash = gv_stashpv ("Coro", TRUE);
3433 4017
3434 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 4018 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3435 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 4019 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3436 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 4020 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3448 coroapi.ready = api_ready; 4032 coroapi.ready = api_ready;
3449 coroapi.is_ready = api_is_ready; 4033 coroapi.is_ready = api_is_ready;
3450 coroapi.nready = coro_nready; 4034 coroapi.nready = coro_nready;
3451 coroapi.current = coro_current; 4035 coroapi.current = coro_current;
3452 4036
4037 coroapi.enterleave_hook = api_enterleave_hook;
4038 coroapi.enterleave_unhook = api_enterleave_unhook;
4039 coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
4040
3453 /*GCoroAPI = &coroapi;*/ 4041 /*GCoroAPI = &coroapi;*/
3454 sv_setiv (sv, (IV)&coroapi); 4042 sv_setiv (sv, (IV)&coroapi);
3455 SvREADONLY_on (sv); 4043 SvREADONLY_on (sv);
3456 } 4044 }
3457} 4045}
… …
3464 api_ready (aTHX_ RETVAL); 4052 api_ready (aTHX_ RETVAL);
3465 OUTPUT: 4053 OUTPUT:
3466 RETVAL 4054 RETVAL
3467 4055
3468void 4056void
4057_destroy (Coro::State coro)
4058 CODE:
4059 /* used by the manager thread */
4060 coro_state_destroy (aTHX_ coro);
4061
4062void
4063on_destroy (Coro::State coro, SV *cb)
4064 CODE:
4065 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
4066
4067void
4068join (...)
4069 CODE:
4070 CORO_EXECUTE_SLF_XS (slf_init_join);
4071
4072void
3469terminate (...) 4073terminate (...)
3470 CODE: 4074 CODE:
3471 CORO_EXECUTE_SLF_XS (slf_init_terminate); 4075 CORO_EXECUTE_SLF_XS (slf_init_terminate);
4076
4077void
4078cancel (...)
4079 CODE:
4080 CORO_EXECUTE_SLF_XS (slf_init_cancel);
4081
4082int
4083safe_cancel (Coro::State self, ...)
4084 C_ARGS: aTHX_ self, &ST (1), items - 1
3472 4085
3473void 4086void
3474schedule (...) 4087schedule (...)
3475 CODE: 4088 CODE:
3476 CORO_EXECUTE_SLF_XS (slf_init_schedule); 4089 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3497 4110
3498void 4111void
3499_set_current (SV *current) 4112_set_current (SV *current)
3500 PROTOTYPE: $ 4113 PROTOTYPE: $
3501 CODE: 4114 CODE:
3502 SvREFCNT_dec (SvRV (coro_current)); 4115 SvREFCNT_dec_NN (SvRV (coro_current));
3503 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 4116 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3504 4117
3505void 4118void
3506_set_readyhook (SV *hook) 4119_set_readyhook (SV *hook)
3507 PROTOTYPE: $ 4120 PROTOTYPE: $
… …
3591 4204
3592 if ((SV *)hv == &PL_sv_undef) 4205 if ((SV *)hv == &PL_sv_undef)
3593 { 4206 {
3594 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); 4207 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3595 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); 4208 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3596 SvREFCNT_dec (sv); 4209 SvREFCNT_dec_NN (sv);
3597 } 4210 }
3598 4211
3599 { 4212 {
3600 struct coro *coro = SvSTATE_hv (hv); 4213 struct coro *coro = SvSTATE_hv (hv);
3601 4214
… …
3608 api_ready (aTHX_ (SV *)hv); 4221 api_ready (aTHX_ (SV *)hv);
3609 4222
3610 if (GIMME_V != G_VOID) 4223 if (GIMME_V != G_VOID)
3611 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); 4224 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3612 else 4225 else
3613 SvREFCNT_dec (hv); 4226 SvREFCNT_dec_NN (hv);
3614} 4227}
3615 4228
3616SV * 4229SV *
3617rouse_cb () 4230rouse_cb ()
3618 PROTOTYPE: 4231 PROTOTYPE:
… …
3633 on_leave = 1 4246 on_leave = 1
3634 PROTOTYPE: & 4247 PROTOTYPE: &
3635 CODE: 4248 CODE:
3636{ 4249{
3637 struct coro *coro = SvSTATE_current; 4250 struct coro *coro = SvSTATE_current;
3638 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4251 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3639 4252
3640 block = s_get_cv_croak (block); 4253 block = s_get_cv_croak (block);
3641 4254
3642 if (!*avp) 4255 if (!*avp)
3643 *avp = newAV (); 4256 *avp = newAV ();
… …
3663 4276
3664SV * 4277SV *
3665new (SV *klass, SV *count = 0) 4278new (SV *klass, SV *count = 0)
3666 CODE: 4279 CODE:
3667{ 4280{
3668 int semcnt = 1; 4281 int semcnt = 1;
3669 4282
3670 if (count) 4283 if (count)
3671 { 4284 {
3672 SvGETMAGIC (count); 4285 SvGETMAGIC (count);
3673 4286
… …
3697 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); 4310 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
3698 OUTPUT: 4311 OUTPUT:
3699 RETVAL 4312 RETVAL
3700 4313
3701void 4314void
3702up (SV *self, int adjust = 1) 4315up (SV *self)
3703 ALIAS:
3704 adjust = 1
3705 CODE: 4316 CODE:
4317 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
4318
4319void
4320adjust (SV *self, int adjust)
4321 CODE:
3706 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 4322 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
3707 4323
3708void 4324void
3709down (...) 4325down (...)
3710 CODE: 4326 CODE:
3711 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 4327 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
… …
3733 XSRETURN_NO; 4349 XSRETURN_NO;
3734} 4350}
3735 4351
3736void 4352void
3737waiters (SV *self) 4353waiters (SV *self)
3738 PPCODE: 4354 PPCODE:
3739{ 4355{
3740 AV *av = (AV *)SvRV (self); 4356 AV *av = (AV *)SvRV (self);
3741 int wcount = AvFILLp (av) + 1 - 1; 4357 int wcount = AvFILLp (av) + 1 - 1;
3742 4358
3743 if (GIMME_V == G_SCALAR) 4359 if (GIMME_V == G_SCALAR)
… …
3752} 4368}
3753 4369
3754MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4370MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3755 4371
3756void 4372void
3757_may_delete (SV *sem, int count, int extra_refs) 4373_may_delete (SV *sem, int count, unsigned int extra_refs)
3758 PPCODE: 4374 PPCODE:
3759{ 4375{
3760 AV *av = (AV *)SvRV (sem); 4376 AV *av = (AV *)SvRV (sem);
3761 4377
3762 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4378 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3763 && AvFILLp (av) == 0 /* no waiters, just count */ 4379 && AvFILLp (av) == 0 /* no waiters, just count */
3764 && SvIV (AvARRAY (av)[0]) == count) 4380 && SvIV (AvARRAY (av)[0]) == count)
3765 XSRETURN_YES; 4381 XSRETURN_YES;
… …
3786 4402
3787void 4403void
3788broadcast (SV *self) 4404broadcast (SV *self)
3789 CODE: 4405 CODE:
3790{ 4406{
3791 AV *av = (AV *)SvRV (self); 4407 AV *av = (AV *)SvRV (self);
3792 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4408 coro_signal_wake (aTHX_ av, AvFILLp (av));
3793} 4409}
3794 4410
3795void 4411void
3796send (SV *self) 4412send (SV *self)
… …
3804 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4420 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3805} 4421}
3806 4422
3807IV 4423IV
3808awaited (SV *self) 4424awaited (SV *self)
3809 CODE: 4425 CODE:
3810 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4426 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3811 OUTPUT: 4427 OUTPUT:
3812 RETVAL 4428 RETVAL
3813 4429
3814 4430
… …
3819 4435
3820void 4436void
3821_schedule (...) 4437_schedule (...)
3822 CODE: 4438 CODE:
3823{ 4439{
3824 static int incede; 4440 static int incede;
3825 4441
3826 api_cede_notself (aTHX); 4442 api_cede_notself (aTHX);
3827 4443
3828 ++incede; 4444 ++incede;
3829 while (coro_nready >= incede && api_cede (aTHX)) 4445 while (coro_nready >= incede && api_cede (aTHX))
… …
3873 { 4489 {
3874 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4490 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3875 coro_old_pp_sselect = 0; 4491 coro_old_pp_sselect = 0;
3876 } 4492 }
3877 4493
4494MODULE = Coro::State PACKAGE = Coro::Util
3878 4495
4496void
4497_exit (int code)
4498 CODE:
4499 _exit (code);
4500
4501NV
4502time ()
4503 CODE:
4504 RETVAL = nvtime (aTHX);
4505 OUTPUT:
4506 RETVAL
4507
4508NV
4509gettimeofday ()
4510 PPCODE:
4511{
4512 UV tv [2];
4513 u2time (aTHX_ tv);
4514 EXTEND (SP, 2);
4515 PUSHs (sv_2mortal (newSVuv (tv [0])));
4516 PUSHs (sv_2mortal (newSVuv (tv [1])));
4517}
4518

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