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Comparing Coro/Coro/State.xs (file contents):
Revision 1.370 by root, Thu Aug 20 21:38:51 2009 UTC vs.
Revision 1.435 by root, Sat Nov 2 19:49:33 2013 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
… …
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "schmorp.h" 16#include "schmorp.h"
12 17
18#define ECB_NO_THREADS 1
19#include "ecb.h"
20
21#include <stddef.h>
13#include <stdio.h> 22#include <stdio.h>
14#include <errno.h> 23#include <errno.h>
15#include <assert.h> 24#include <assert.h>
16 25
17#ifdef WIN32 26#ifndef SVs_PADSTALE
27# define SVs_PADSTALE 0
28#endif
29
30#ifdef PadARRAY
31# define NEWPADAPI 1
32# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33#else
34typedef AV PADNAMELIST;
35# if !PERL_VERSION_ATLEAST(5,8,0)
36typedef AV PADLIST;
37typedef AV PAD;
38# endif
39# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
40# define PadlistMAX(pl) AvFILLp (pl)
41# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42# define PadARRAY AvARRAY
43# define PadMAX AvFILLp
44# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
45#endif
46
47#if defined(_WIN32)
48# undef HAS_GETTIMEOFDAY
18# undef setjmp 49# undef setjmp
19# undef longjmp 50# undef longjmp
20# undef _exit 51# undef _exit
21# define setjmp _setjmp /* deep magic */ 52# define setjmp _setjmp /* deep magic */
22#else 53#else
23# include <inttypes.h> /* most portable stdint.h */ 54# include <inttypes.h> /* most portable stdint.h */
24#endif 55#endif
25 56
26#ifdef HAVE_MMAP
27# include <unistd.h>
28# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON
32# else
33# undef HAVE_MMAP
34# endif
35# endif
36# include <limits.h>
37# ifndef PAGESIZE
38# define PAGESIZE pagesize
39# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
40static long pagesize;
41# else
42# define BOOT_PAGESIZE (void)0
43# endif
44#else
45# define PAGESIZE 0
46# define BOOT_PAGESIZE (void)0
47#endif
48
49#if CORO_USE_VALGRIND
50# include <valgrind/valgrind.h>
51#endif
52
53/* the maximum number of idle cctx that will be pooled */ 57/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 58static int cctx_max_idle = 4;
55 59
56#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 60#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57# undef CORO_STACKGUARD 61# define HAS_SCOPESTACK_NAME 1
58#endif
59
60#ifndef CORO_STACKGUARD
61# define CORO_STACKGUARD 0
62#endif 62#endif
63 63
64/* prefer perl internal functions over our own? */ 64/* prefer perl internal functions over our own? */
65#ifndef CORO_PREFER_PERL_FUNCTIONS 65#ifndef CORO_PREFER_PERL_FUNCTIONS
66# define CORO_PREFER_PERL_FUNCTIONS 0 66# define CORO_PREFER_PERL_FUNCTIONS 0
… …
76# define STACKLEVEL ((void *)&stacklevel) 76# define STACKLEVEL ((void *)&stacklevel)
77#endif 77#endif
78 78
79#define IN_DESTRUCT PL_dirty 79#define IN_DESTRUCT PL_dirty
80 80
81#if __GNUC__ >= 3
82# define attribute(x) __attribute__(x)
83# define expect(expr,value) __builtin_expect ((expr), (value))
84# define INLINE static inline
85#else
86# define attribute(x)
87# define expect(expr,value) (expr)
88# define INLINE static
89#endif
90
91#define expect_false(expr) expect ((expr) != 0, 0)
92#define expect_true(expr) expect ((expr) != 0, 1)
93
94#define NOINLINE attribute ((noinline))
95
96#include "CoroAPI.h" 81#include "CoroAPI.h"
97#define GCoroAPI (&coroapi) /* very sneaky */ 82#define GCoroAPI (&coroapi) /* very sneaky */
98 83
99#ifdef USE_ITHREADS 84#ifdef USE_ITHREADS
100# if CORO_PTHREAD 85# if CORO_PTHREAD
… …
116static void (*u2time)(pTHX_ UV ret[2]); 101static void (*u2time)(pTHX_ UV ret[2]);
117 102
118/* we hijack an hopefully unused CV flag for our purposes */ 103/* we hijack an hopefully unused CV flag for our purposes */
119#define CVf_SLF 0x4000 104#define CVf_SLF 0x4000
120static OP *pp_slf (pTHX); 105static OP *pp_slf (pTHX);
106static void slf_destroy (pTHX_ struct coro *coro);
121 107
122static U32 cctx_gen; 108static U32 cctx_gen;
123static size_t cctx_stacksize = CORO_STACKSIZE; 109static size_t cctx_stacksize = CORO_STACKSIZE;
124static struct CoroAPI coroapi; 110static struct CoroAPI coroapi;
125static AV *main_mainstack; /* used to differentiate between $main and others */ 111static AV *main_mainstack; /* used to differentiate between $main and others */
… …
155static char times_valid; 141static char times_valid;
156 142
157static struct coro_cctx *cctx_first; 143static struct coro_cctx *cctx_first;
158static int cctx_count, cctx_idle; 144static int cctx_count, cctx_idle;
159 145
160enum { 146enum
147{
161 CC_MAPPED = 0x01, 148 CC_MAPPED = 0x01,
162 CC_NOREUSE = 0x02, /* throw this away after tracing */ 149 CC_NOREUSE = 0x02, /* throw this away after tracing */
163 CC_TRACE = 0x04, 150 CC_TRACE = 0x04,
164 CC_TRACE_SUB = 0x08, /* trace sub calls */ 151 CC_TRACE_SUB = 0x08, /* trace sub calls */
165 CC_TRACE_LINE = 0x10, /* trace each statement */ 152 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
170typedef struct coro_cctx 157typedef struct coro_cctx
171{ 158{
172 struct coro_cctx *next; 159 struct coro_cctx *next;
173 160
174 /* the stack */ 161 /* the stack */
175 void *sptr; 162 struct coro_stack stack;
176 size_t ssize;
177 163
178 /* cpu state */ 164 /* cpu state */
179 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 165 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
166#ifndef NDEBUG
180 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 167 JMPENV *idle_te; /* same as idle_sp, but for top_env */
168#endif
181 JMPENV *top_env; 169 JMPENV *top_env;
182 coro_context cctx; 170 coro_context cctx;
183 171
184 U32 gen; 172 U32 gen;
185#if CORO_USE_VALGRIND 173#if CORO_USE_VALGRIND
186 int valgrind_id; 174 int valgrind_id;
187#endif 175#endif
188 unsigned char flags; 176 unsigned char flags;
189} coro_cctx; 177} coro_cctx;
190 178
191coro_cctx *cctx_current; /* the currently running cctx */ 179static coro_cctx *cctx_current; /* the currently running cctx */
192 180
193/*****************************************************************************/ 181/*****************************************************************************/
194 182
183static MGVTBL coro_state_vtbl;
184
195enum { 185enum
186{
196 CF_RUNNING = 0x0001, /* coroutine is running */ 187 CF_RUNNING = 0x0001, /* coroutine is running */
197 CF_READY = 0x0002, /* coroutine is ready */ 188 CF_READY = 0x0002, /* coroutine is ready */
198 CF_NEW = 0x0004, /* has never been switched to */ 189 CF_NEW = 0x0004, /* has never been switched to */
199 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 190 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
200 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 191 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
192 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
201}; 193};
202 194
203/* the structure where most of the perl state is stored, overlaid on the cxstack */ 195/* the structure where most of the perl state is stored, overlaid on the cxstack */
204typedef struct 196typedef struct
205{ 197{
206 SV *defsv;
207 AV *defav;
208 SV *errsv;
209 SV *irsgv;
210 HV *hinthv;
211#define VAR(name,type) type name; 198 #define VARx(name,expr,type) type name;
212# include "state.h" 199 #include "state.h"
213#undef VAR
214} perl_slots; 200} perl_slots;
215 201
202/* how many context stack entries do we need for perl_slots */
216#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 203#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
217 204
218/* this is a structure representing a perl-level coroutine */ 205/* this is a structure representing a perl-level coroutine */
219struct coro { 206struct coro
207{
220 /* the C coroutine allocated to this perl coroutine, if any */ 208 /* the C coroutine allocated to this perl coroutine, if any */
221 coro_cctx *cctx; 209 coro_cctx *cctx;
222 210
223 /* ready queue */ 211 /* ready queue */
224 struct coro *next_ready; 212 struct coro *next_ready;
… …
226 /* state data */ 214 /* state data */
227 struct CoroSLF slf_frame; /* saved slf frame */ 215 struct CoroSLF slf_frame; /* saved slf frame */
228 AV *mainstack; 216 AV *mainstack;
229 perl_slots *slot; /* basically the saved sp */ 217 perl_slots *slot; /* basically the saved sp */
230 218
231 CV *startcv; /* the CV to execute */ 219 CV *startcv; /* the CV to execute */
232 AV *args; /* data associated with this coroutine (initial args) */ 220 AV *args; /* data associated with this coroutine (initial args) */
233 int refcnt; /* coroutines are refcounted, yes */
234 int flags; /* CF_ flags */ 221 int flags; /* CF_ flags */
235 HV *hv; /* the perl hash associated with this coro, if any */ 222 HV *hv; /* the perl hash associated with this coro, if any */
236 void (*on_destroy)(pTHX_ struct coro *coro);
237 223
238 /* statistics */ 224 /* statistics */
239 int usecount; /* number of transfers to this coro */ 225 int usecount; /* number of transfers to this coro */
240 226
241 /* coro process data */ 227 /* coro process data */
242 int prio; 228 int prio;
243 SV *except; /* exception to be thrown */ 229 SV *except; /* exception to be thrown */
244 SV *rouse_cb; 230 SV *rouse_cb; /* last rouse callback */
231 AV *on_destroy; /* callbacks or coros to notify on destroy */
232 AV *status; /* the exit status list */
245 233
246 /* async_pool */ 234 /* async_pool */
247 SV *saved_deffh; 235 SV *saved_deffh;
248 SV *invoke_cb; 236 SV *invoke_cb;
249 AV *invoke_av; 237 AV *invoke_av;
250 238
251 /* on_enter/on_leave */ 239 /* on_enter/on_leave */
252 AV *on_enter; 240 AV *on_enter;
253 AV *on_leave; 241 AV *on_leave;
254 242
243 /* swap_sv */
244 AV *swap_sv;
245
255 /* times */ 246 /* times */
256 coro_ts t_cpu, t_real; 247 coro_ts t_cpu, t_real;
257 248
258 /* linked list */ 249 /* linked list */
259 struct coro *next, *prev; 250 struct coro *next, *prev;
… …
262typedef struct coro *Coro__State; 253typedef struct coro *Coro__State;
263typedef struct coro *Coro__State_or_hashref; 254typedef struct coro *Coro__State_or_hashref;
264 255
265/* the following variables are effectively part of the perl context */ 256/* the following variables are effectively part of the perl context */
266/* and get copied between struct coro and these variables */ 257/* and get copied between struct coro and these variables */
267/* the mainr easonw e don't support windows process emulation */ 258/* the main reason we don't support windows process emulation */
268static struct CoroSLF slf_frame; /* the current slf frame */ 259static struct CoroSLF slf_frame; /* the current slf frame */
269 260
270/** Coro ********************************************************************/ 261/** Coro ********************************************************************/
271 262
272#define CORO_PRIO_MAX 3 263#define CORO_PRIO_MAX 3
… …
278 269
279/* for Coro.pm */ 270/* for Coro.pm */
280static SV *coro_current; 271static SV *coro_current;
281static SV *coro_readyhook; 272static SV *coro_readyhook;
282static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 273static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
283static CV *cv_coro_run, *cv_coro_terminate; 274static CV *cv_coro_run;
284static struct coro *coro_first; 275static struct coro *coro_first;
285#define coro_nready coroapi.nready 276#define coro_nready coroapi.nready
286 277
278/** JIT *********************************************************************/
279
280#if CORO_JIT
281 /* APPLE doesn't have mmap though */
282 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
283 #ifndef CORO_JIT_TYPE
284 #if ECB_AMD64 && CORO_JIT_UNIXY
285 #define CORO_JIT_TYPE "amd64-unix"
286 #elif __i386 && CORO_JIT_UNIXY
287 #define CORO_JIT_TYPE "x86-unix"
288 #endif
289 #endif
290#endif
291
292#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
293 #undef CORO_JIT
294#endif
295
296#if CORO_JIT
297 typedef void (*load_save_perl_slots_type)(perl_slots *);
298 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
299#endif
300
287/** Coro::Select ************************************************************/ 301/** Coro::Select ************************************************************/
288 302
289static OP *(*coro_old_pp_sselect) (pTHX); 303static OP *(*coro_old_pp_sselect) (pTHX);
290static SV *coro_select_select; 304static SV *coro_select_select;
291 305
292/* horrible hack, but if it works... */ 306/* horrible hack, but if it works... */
293static OP * 307static OP *
294coro_pp_sselect (aTHX) 308coro_pp_sselect (pTHX)
295{ 309{
296 dSP; 310 dSP;
297 PUSHMARK (SP - 4); /* fake argument list */ 311 PUSHMARK (SP - 4); /* fake argument list */
298 XPUSHs (coro_select_select); 312 XPUSHs (coro_select_select);
299 PUTBACK; 313 PUTBACK;
… …
302 PL_op->op_flags |= OPf_STACKED; 316 PL_op->op_flags |= OPf_STACKED;
303 PL_op->op_private = 0; 317 PL_op->op_private = 0;
304 return PL_ppaddr [OP_ENTERSUB](aTHX); 318 return PL_ppaddr [OP_ENTERSUB](aTHX);
305} 319}
306 320
321/** time stuff **************************************************************/
322
323#ifdef HAS_GETTIMEOFDAY
324
325ecb_inline void
326coro_u2time (pTHX_ UV ret[2])
327{
328 struct timeval tv;
329 gettimeofday (&tv, 0);
330
331 ret [0] = tv.tv_sec;
332 ret [1] = tv.tv_usec;
333}
334
335ecb_inline double
336coro_nvtime (void)
337{
338 struct timeval tv;
339 gettimeofday (&tv, 0);
340
341 return tv.tv_sec + tv.tv_usec * 1e-6;
342}
343
344ecb_inline void
345time_init (pTHX)
346{
347 nvtime = coro_nvtime;
348 u2time = coro_u2time;
349}
350
351#else
352
353ecb_inline void
354time_init (pTHX)
355{
356 SV **svp;
357
358 require_pv ("Time/HiRes.pm");
359
360 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
361
362 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
363 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
364
365 nvtime = INT2PTR (double (*)(), SvIV (*svp));
366
367 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
368 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
369}
370
371#endif
372
307/** lowlevel stuff **********************************************************/ 373/** lowlevel stuff **********************************************************/
308 374
309static SV * 375static SV * ecb_noinline
310coro_get_sv (pTHX_ const char *name, int create) 376coro_get_sv (pTHX_ const char *name, int create)
311{ 377{
312#if PERL_VERSION_ATLEAST (5,10,0) 378#if PERL_VERSION_ATLEAST (5,10,0)
313 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 379 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
314 get_sv (name, create); 380 get_sv (name, create);
315#endif 381#endif
316 return get_sv (name, create); 382 return get_sv (name, create);
317} 383}
318 384
319static AV * 385static AV * ecb_noinline
320coro_get_av (pTHX_ const char *name, int create) 386coro_get_av (pTHX_ const char *name, int create)
321{ 387{
322#if PERL_VERSION_ATLEAST (5,10,0) 388#if PERL_VERSION_ATLEAST (5,10,0)
323 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 389 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
324 get_av (name, create); 390 get_av (name, create);
325#endif 391#endif
326 return get_av (name, create); 392 return get_av (name, create);
327} 393}
328 394
329static HV * 395static HV * ecb_noinline
330coro_get_hv (pTHX_ const char *name, int create) 396coro_get_hv (pTHX_ const char *name, int create)
331{ 397{
332#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
333 /* 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 */
334 get_hv (name, create); 400 get_hv (name, create);
335#endif 401#endif
336 return get_hv (name, create); 402 return get_hv (name, create);
337} 403}
338 404
339INLINE void 405ecb_inline void
340coro_times_update () 406coro_times_update (void)
341{ 407{
342#ifdef coro_clock_gettime 408#ifdef coro_clock_gettime
343 struct timespec ts; 409 struct timespec ts;
344 410
345 ts.tv_sec = ts.tv_nsec = 0; 411 ts.tv_sec = ts.tv_nsec = 0;
… …
357 time_real [0] = tv [0]; 423 time_real [0] = tv [0];
358 time_real [1] = tv [1] * 1000; 424 time_real [1] = tv [1] * 1000;
359#endif 425#endif
360} 426}
361 427
362INLINE void 428ecb_inline void
363coro_times_add (struct coro *c) 429coro_times_add (struct coro *c)
364{ 430{
365 c->t_real [1] += time_real [1]; 431 c->t_real [1] += time_real [1];
366 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 432 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
367 c->t_real [0] += time_real [0]; 433 c->t_real [0] += time_real [0];
… …
369 c->t_cpu [1] += time_cpu [1]; 435 c->t_cpu [1] += time_cpu [1];
370 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 436 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
371 c->t_cpu [0] += time_cpu [0]; 437 c->t_cpu [0] += time_cpu [0];
372} 438}
373 439
374INLINE void 440ecb_inline void
375coro_times_sub (struct coro *c) 441coro_times_sub (struct coro *c)
376{ 442{
377 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 443 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
378 c->t_real [1] -= time_real [1]; 444 c->t_real [1] -= time_real [1];
379 c->t_real [0] -= time_real [0]; 445 c->t_real [0] -= time_real [0];
… …
387/* magic glue */ 453/* magic glue */
388 454
389#define CORO_MAGIC_type_cv 26 455#define CORO_MAGIC_type_cv 26
390#define CORO_MAGIC_type_state PERL_MAGIC_ext 456#define CORO_MAGIC_type_state PERL_MAGIC_ext
391 457
392#define CORO_MAGIC_NN(sv, type) \ 458#define CORO_MAGIC_NN(sv, type) \
393 (expect_true (SvMAGIC (sv)->mg_type == type) \ 459 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
394 ? SvMAGIC (sv) \ 460 ? SvMAGIC (sv) \
395 : mg_find (sv, type)) 461 : mg_find (sv, type))
396 462
397#define CORO_MAGIC(sv, type) \ 463#define CORO_MAGIC(sv, type) \
398 (expect_true (SvMAGIC (sv)) \ 464 (ecb_expect_true (SvMAGIC (sv)) \
399 ? CORO_MAGIC_NN (sv, type) \ 465 ? CORO_MAGIC_NN (sv, type) \
400 : 0) 466 : 0)
401 467
402#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 468#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
403#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 469#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
404 470
405INLINE struct coro * 471ecb_inline MAGIC *
472SvSTATEhv_p (pTHX_ SV *coro)
473{
474 MAGIC *mg;
475
476 if (ecb_expect_true (
477 SvTYPE (coro) == SVt_PVHV
478 && (mg = CORO_MAGIC_state (coro))
479 && mg->mg_virtual == &coro_state_vtbl
480 ))
481 return mg;
482
483 return 0;
484}
485
486ecb_inline struct coro *
406SvSTATE_ (pTHX_ SV *coro) 487SvSTATE_ (pTHX_ SV *coro)
407{ 488{
408 HV *stash;
409 MAGIC *mg; 489 MAGIC *mg;
410 490
411 if (SvROK (coro)) 491 if (SvROK (coro))
412 coro = SvRV (coro); 492 coro = SvRV (coro);
413 493
414 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 494 mg = SvSTATEhv_p (aTHX_ coro);
495 if (!mg)
415 croak ("Coro::State object required"); 496 croak ("Coro::State object required");
416 497
417 stash = SvSTASH (coro);
418 if (expect_false (stash != coro_stash && stash != coro_state_stash))
419 {
420 /* very slow, but rare, check */
421 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
422 croak ("Coro::State object required");
423 }
424
425 mg = CORO_MAGIC_state (coro);
426 return (struct coro *)mg->mg_ptr; 498 return (struct coro *)mg->mg_ptr;
427} 499}
428 500
429#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 501#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
430 502
… …
433#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 505#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
434 506
435/*****************************************************************************/ 507/*****************************************************************************/
436/* padlist management and caching */ 508/* padlist management and caching */
437 509
438static AV * 510ecb_inline PADLIST *
439coro_derive_padlist (pTHX_ CV *cv) 511coro_derive_padlist (pTHX_ CV *cv)
440{ 512{
441 AV *padlist = CvPADLIST (cv); 513 PADLIST *padlist = CvPADLIST (cv);
442 AV *newpadlist, *newpad; 514 PADLIST *newpadlist;
515 PAD *newpad;
516 PADOFFSET off = PadlistMAX (padlist) + 1;
443 517
444 newpadlist = newAV (); 518#if NEWPADAPI
519
520 while (!PadlistARRAY (padlist)[off - 1])
521 --off;
522
523 Perl_pad_push (aTHX_ padlist, off);
524
525 newpad = PadlistARRAY (padlist)[off];
526 PadlistARRAY (padlist)[off] = 0;
527
528#else
529
530#if PERL_VERSION_ATLEAST (5,10,0)
531 Perl_pad_push (aTHX_ padlist, off);
532#else
533 Perl_pad_push (aTHX_ padlist, off, 1);
534#endif
535
536 newpad = PadlistARRAY (padlist)[off];
537 PadlistMAX (padlist) = off - 1;
538
539#endif
540
541 newPADLIST (newpadlist);
542#if !PERL_VERSION_ATLEAST(5,15,3)
543 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
445 AvREAL_off (newpadlist); 544 AvREAL_off (newpadlist);
446#if PERL_VERSION_ATLEAST (5,10,0)
447 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
448#else
449 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
450#endif 545#endif
451 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
452 --AvFILLp (padlist);
453 546
454 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 547 /* Already extended to 2 elements by newPADLIST. */
455 av_store (newpadlist, 1, (SV *)newpad); 548 PadlistMAX (newpadlist) = 1;
549 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
550 PadlistARRAY (newpadlist)[1] = newpad;
456 551
457 return newpadlist; 552 return newpadlist;
458} 553}
459 554
460static void 555ecb_inline void
461free_padlist (pTHX_ AV *padlist) 556free_padlist (pTHX_ PADLIST *padlist)
462{ 557{
463 /* may be during global destruction */ 558 /* may be during global destruction */
464 if (!IN_DESTRUCT) 559 if (!IN_DESTRUCT)
465 { 560 {
466 I32 i = AvFILLp (padlist); 561 I32 i = PadlistMAX (padlist);
467 562
468 while (i > 0) /* special-case index 0 */ 563 while (i > 0) /* special-case index 0 */
469 { 564 {
470 /* we try to be extra-careful here */ 565 /* we try to be extra-careful here */
471 AV *av = (AV *)AvARRAY (padlist)[i--]; 566 PAD *pad = PadlistARRAY (padlist)[i--];
472 I32 j = AvFILLp (av); 567 I32 j = PadMAX (pad);
473 568
474 while (j >= 0) 569 while (j >= 0)
475 SvREFCNT_dec (AvARRAY (av)[j--]); 570 SvREFCNT_dec (PadARRAY (pad)[j--]);
476 571
477 AvFILLp (av) = -1; 572 PadMAX (pad) = -1;
478 SvREFCNT_dec (av); 573 SvREFCNT_dec (pad);
479 } 574 }
480 575
481 SvREFCNT_dec (AvARRAY (padlist)[0]); 576 SvREFCNT_dec (PadlistNAMES (padlist));
482 577
578#if NEWPADAPI
579 Safefree (PadlistARRAY (padlist));
580 Safefree (padlist);
581#else
483 AvFILLp (padlist) = -1; 582 AvFILLp (padlist) = -1;
583 AvREAL_off (padlist);
484 SvREFCNT_dec ((SV*)padlist); 584 SvREFCNT_dec ((SV*)padlist);
585#endif
485 } 586 }
486} 587}
487 588
488static int 589static int
489coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 590coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
490{ 591{
491 AV *padlist; 592 PADLIST *padlist;
492 AV *av = (AV *)mg->mg_obj; 593 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
594 size_t len = *(size_t *)mg->mg_ptr;
493 595
494 /* perl manages to free our internal AV and _then_ call us */ 596 /* perl manages to free our internal AV and _then_ call us */
495 if (IN_DESTRUCT) 597 if (IN_DESTRUCT)
496 return 0; 598 return 0;
497 599
498 /* casting is fun. */ 600 while (len--)
499 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
500 free_padlist (aTHX_ padlist); 601 free_padlist (aTHX_ padlists[len]);
501
502 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
503 602
504 return 0; 603 return 0;
505} 604}
506 605
507static MGVTBL coro_cv_vtbl = { 606static MGVTBL coro_cv_vtbl = {
508 0, 0, 0, 0, 607 0, 0, 0, 0,
509 coro_cv_free 608 coro_cv_free
510}; 609};
511 610
512/* the next two functions merely cache the padlists */ 611/* the next two functions merely cache the padlists */
513static void 612ecb_inline void
514get_padlist (pTHX_ CV *cv) 613get_padlist (pTHX_ CV *cv)
515{ 614{
516 MAGIC *mg = CORO_MAGIC_cv (cv); 615 MAGIC *mg = CORO_MAGIC_cv (cv);
517 AV *av; 616 size_t *lenp;
518 617
519 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 618 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
520 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 619 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
521 else 620 else
522 { 621 {
523#if CORO_PREFER_PERL_FUNCTIONS 622#if CORO_PREFER_PERL_FUNCTIONS
524 /* this is probably cleaner? but also slower! */ 623 /* this is probably cleaner? but also slower! */
525 /* in practise, it seems to be less stable */ 624 /* in practise, it seems to be less stable */
… …
531 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 630 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
532#endif 631#endif
533 } 632 }
534} 633}
535 634
536static void 635ecb_inline void
537put_padlist (pTHX_ CV *cv) 636put_padlist (pTHX_ CV *cv)
538{ 637{
539 MAGIC *mg = CORO_MAGIC_cv (cv); 638 MAGIC *mg = CORO_MAGIC_cv (cv);
540 AV *av;
541 639
542 if (expect_false (!mg)) 640 if (ecb_expect_false (!mg))
641 {
543 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 642 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
643 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
644 mg->mg_len = 1; /* so mg_free frees mg_ptr */
645 }
646 else
647 Renew (mg->mg_ptr,
648 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
649 char);
544 650
545 av = (AV *)mg->mg_obj; 651 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
546
547 if (expect_false (AvFILLp (av) >= AvMAX (av)))
548 av_extend (av, AvFILLp (av) + 1);
549
550 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
551} 652}
552 653
553/** load & save, init *******************************************************/ 654/** load & save, init *******************************************************/
655
656ecb_inline void
657swap_sv (SV *a, SV *b)
658{
659 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
660 SV tmp;
661
662 /* swap sv_any */
663 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
664
665 /* swap sv_flags */
666 SvFLAGS (&tmp) = SvFLAGS (a);
667 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
668 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
669
670#if PERL_VERSION_ATLEAST (5,10,0)
671 /* perl 5.10 and later complicates this _quite_ a bit, but it also
672 * is much faster, so no quarrels here. alternatively, we could
673 * sv_upgrade to avoid this.
674 */
675 {
676 /* swap sv_u */
677 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
678
679 /* if SvANY points to the head, we need to adjust the pointers,
680 * as the pointer for a still points to b, and maybe vice versa.
681 */
682 #define svany_in_head(type) \
683 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
684
685 if (svany_in_head (SvTYPE (a)))
686 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
687
688 if (svany_in_head (SvTYPE (b)))
689 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
690 }
691#endif
692}
693
694/* swap sv heads, at least logically */
695static void
696swap_svs (pTHX_ Coro__State c)
697{
698 int i;
699
700 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
701 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
702}
703
704#define SWAP_SVS(coro) \
705 if (ecb_expect_false ((coro)->swap_sv)) \
706 swap_svs (aTHX_ (coro))
554 707
555static void 708static void
556on_enterleave_call (pTHX_ SV *cb); 709on_enterleave_call (pTHX_ SV *cb);
557 710
558static void 711static void
… …
561 perl_slots *slot = c->slot; 714 perl_slots *slot = c->slot;
562 c->slot = 0; 715 c->slot = 0;
563 716
564 PL_mainstack = c->mainstack; 717 PL_mainstack = c->mainstack;
565 718
566 GvSV (PL_defgv) = slot->defsv; 719#if CORO_JIT
567 GvAV (PL_defgv) = slot->defav; 720 load_perl_slots (slot);
568 GvSV (PL_errgv) = slot->errsv; 721#else
569 GvSV (irsgv) = slot->irsgv;
570 GvHV (PL_hintgv) = slot->hinthv;
571
572 #define VAR(name,type) PL_ ## name = slot->name; 722 #define VARx(name,expr,type) expr = slot->name;
573 # include "state.h" 723 #include "state.h"
574 #undef VAR 724#endif
575 725
576 { 726 {
577 dSP; 727 dSP;
578 728
579 CV *cv; 729 CV *cv;
580 730
581 /* now do the ugly restore mess */ 731 /* now do the ugly restore mess */
582 while (expect_true (cv = (CV *)POPs)) 732 while (ecb_expect_true (cv = (CV *)POPs))
583 { 733 {
584 put_padlist (aTHX_ cv); /* mark this padlist as available */ 734 put_padlist (aTHX_ cv); /* mark this padlist as available */
585 CvDEPTH (cv) = PTR2IV (POPs); 735 CvDEPTH (cv) = PTR2IV (POPs);
586 CvPADLIST (cv) = (AV *)POPs; 736 CvPADLIST (cv) = (PADLIST *)POPs;
587 } 737 }
588 738
589 PUTBACK; 739 PUTBACK;
590 } 740 }
591 741
592 slf_frame = c->slf_frame; 742 slf_frame = c->slf_frame;
593 CORO_THROW = c->except; 743 CORO_THROW = c->except;
594 744
595 if (expect_false (enable_times)) 745 if (ecb_expect_false (enable_times))
596 { 746 {
597 if (expect_false (!times_valid)) 747 if (ecb_expect_false (!times_valid))
598 coro_times_update (); 748 coro_times_update ();
599 749
600 coro_times_sub (c); 750 coro_times_sub (c);
601 } 751 }
602 752
603 if (expect_false (c->on_enter)) 753 if (ecb_expect_false (c->on_enter))
604 { 754 {
605 int i; 755 int i;
606 756
607 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 757 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
608 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 758 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
609 } 759 }
760
761 SWAP_SVS (c);
610} 762}
611 763
612static void 764static void
613save_perl (pTHX_ Coro__State c) 765save_perl (pTHX_ Coro__State c)
614{ 766{
767 SWAP_SVS (c);
768
615 if (expect_false (c->on_leave)) 769 if (ecb_expect_false (c->on_leave))
616 { 770 {
617 int i; 771 int i;
618 772
619 for (i = AvFILLp (c->on_leave); i >= 0; --i) 773 for (i = AvFILLp (c->on_leave); i >= 0; --i)
620 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 774 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
621 } 775 }
622 776
623 times_valid = 0; 777 times_valid = 0;
624 778
625 if (expect_false (enable_times)) 779 if (ecb_expect_false (enable_times))
626 { 780 {
627 coro_times_update (); times_valid = 1; 781 coro_times_update (); times_valid = 1;
628 coro_times_add (c); 782 coro_times_add (c);
629 } 783 }
630 784
… …
644 798
645 XPUSHs (Nullsv); 799 XPUSHs (Nullsv);
646 /* this loop was inspired by pp_caller */ 800 /* this loop was inspired by pp_caller */
647 for (;;) 801 for (;;)
648 { 802 {
649 while (expect_true (cxix >= 0)) 803 while (ecb_expect_true (cxix >= 0))
650 { 804 {
651 PERL_CONTEXT *cx = &ccstk[cxix--]; 805 PERL_CONTEXT *cx = &ccstk[cxix--];
652 806
653 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 807 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
654 { 808 {
655 CV *cv = cx->blk_sub.cv; 809 CV *cv = cx->blk_sub.cv;
656 810
657 if (expect_true (CvDEPTH (cv))) 811 if (ecb_expect_true (CvDEPTH (cv)))
658 { 812 {
659 EXTEND (SP, 3); 813 EXTEND (SP, 3);
660 PUSHs ((SV *)CvPADLIST (cv)); 814 PUSHs ((SV *)CvPADLIST (cv));
661 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 815 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
662 PUSHs ((SV *)cv); 816 PUSHs ((SV *)cv);
… …
665 get_padlist (aTHX_ cv); 819 get_padlist (aTHX_ cv);
666 } 820 }
667 } 821 }
668 } 822 }
669 823
670 if (expect_true (top_si->si_type == PERLSI_MAIN)) 824 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
671 break; 825 break;
672 826
673 top_si = top_si->si_prev; 827 top_si = top_si->si_prev;
674 ccstk = top_si->si_cxstack; 828 ccstk = top_si->si_cxstack;
675 cxix = top_si->si_cxix; 829 cxix = top_si->si_cxix;
… …
677 831
678 PUTBACK; 832 PUTBACK;
679 } 833 }
680 834
681 /* allocate some space on the context stack for our purposes */ 835 /* allocate some space on the context stack for our purposes */
682 /* we manually unroll here, as usually 2 slots is enough */ 836 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
683 if (SLOT_COUNT >= 1) CXINC;
684 if (SLOT_COUNT >= 2) CXINC;
685 if (SLOT_COUNT >= 3) CXINC;
686 { 837 {
687 unsigned int i; 838 unsigned int i;
839
688 for (i = 3; i < SLOT_COUNT; ++i) 840 for (i = 0; i < SLOT_COUNT; ++i)
689 CXINC; 841 CXINC;
690 } 842
691 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 843 cxstack_ix -= SLOT_COUNT; /* undo allocation */
844 }
692 845
693 c->mainstack = PL_mainstack; 846 c->mainstack = PL_mainstack;
694 847
695 { 848 {
696 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 849 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
697 850
698 slot->defav = GvAV (PL_defgv); 851#if CORO_JIT
699 slot->defsv = DEFSV; 852 save_perl_slots (slot);
700 slot->errsv = ERRSV; 853#else
701 slot->irsgv = GvSV (irsgv);
702 slot->hinthv = GvHV (PL_hintgv);
703
704 #define VAR(name,type) slot->name = PL_ ## name; 854 #define VARx(name,expr,type) slot->name = expr;
705 # include "state.h" 855 #include "state.h"
706 #undef VAR 856#endif
707 } 857 }
708} 858}
709 859
710/* 860/*
711 * allocate various perl stacks. This is almost an exact copy 861 * allocate various perl stacks. This is almost an exact copy
… …
717# define coro_init_stacks(thx) init_stacks () 867# define coro_init_stacks(thx) init_stacks ()
718#else 868#else
719static void 869static void
720coro_init_stacks (pTHX) 870coro_init_stacks (pTHX)
721{ 871{
722 PL_curstackinfo = new_stackinfo(32, 8); 872 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
723 PL_curstackinfo->si_type = PERLSI_MAIN; 873 PL_curstackinfo->si_type = PERLSI_MAIN;
724 PL_curstack = PL_curstackinfo->si_stack; 874 PL_curstack = PL_curstackinfo->si_stack;
725 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 875 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
726 876
727 PL_stack_base = AvARRAY(PL_curstack); 877 PL_stack_base = AvARRAY(PL_curstack);
… …
742#endif 892#endif
743 893
744 New(54,PL_scopestack,8,I32); 894 New(54,PL_scopestack,8,I32);
745 PL_scopestack_ix = 0; 895 PL_scopestack_ix = 0;
746 PL_scopestack_max = 8; 896 PL_scopestack_max = 8;
897#if HAS_SCOPESTACK_NAME
898 New(54,PL_scopestack_name,8,const char*);
899#endif
747 900
748 New(54,PL_savestack,24,ANY); 901 New(54,PL_savestack,24,ANY);
749 PL_savestack_ix = 0; 902 PL_savestack_ix = 0;
750 PL_savestack_max = 24; 903 PL_savestack_max = 24;
751 904
… …
779 } 932 }
780 933
781 Safefree (PL_tmps_stack); 934 Safefree (PL_tmps_stack);
782 Safefree (PL_markstack); 935 Safefree (PL_markstack);
783 Safefree (PL_scopestack); 936 Safefree (PL_scopestack);
937#if HAS_SCOPESTACK_NAME
938 Safefree (PL_scopestack_name);
939#endif
784 Safefree (PL_savestack); 940 Safefree (PL_savestack);
785#if !PERL_VERSION_ATLEAST (5,10,0) 941#if !PERL_VERSION_ATLEAST (5,10,0)
786 Safefree (PL_retstack); 942 Safefree (PL_retstack);
787#endif 943#endif
788} 944}
… …
834#endif 990#endif
835 991
836/* 992/*
837 * This overrides the default magic get method of %SIG elements. 993 * This overrides the default magic get method of %SIG elements.
838 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 994 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
839 * and instead of trying to save and restore the hash elements, we just provide 995 * and instead of trying to save and restore the hash elements (extremely slow),
840 * readback here. 996 * we just provide our own readback here.
841 */ 997 */
842static int 998static int ecb_cold
843coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 999coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
844{ 1000{
845 const char *s = MgPV_nolen_const (mg); 1001 const char *s = MgPV_nolen_const (mg);
846 1002
847 if (*s == '_') 1003 if (*s == '_')
848 { 1004 {
849 SV **svp = 0; 1005 SV **svp = 0;
850 1006
851 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1007 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
852 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1008 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
853 1009
854 if (svp) 1010 if (svp)
855 { 1011 {
856 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1012 SV *ssv;
1013
1014 if (!*svp)
1015 ssv = &PL_sv_undef;
1016 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1017 ssv = sv_2mortal (newRV_inc (*svp));
1018 else
1019 ssv = *svp;
1020
1021 sv_setsv (sv, ssv);
857 return 0; 1022 return 0;
858 } 1023 }
859 } 1024 }
860 1025
861 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1026 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
862} 1027}
863 1028
864static int 1029static int ecb_cold
865coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1030coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
866{ 1031{
867 const char *s = MgPV_nolen_const (mg); 1032 const char *s = MgPV_nolen_const (mg);
868 1033
869 if (*s == '_') 1034 if (*s == '_')
… …
883 } 1048 }
884 1049
885 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1050 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
886} 1051}
887 1052
888static int 1053static int ecb_cold
889coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1054coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
890{ 1055{
891 const char *s = MgPV_nolen_const (mg); 1056 const char *s = MgPV_nolen_const (mg);
892 1057
893 if (*s == '_') 1058 if (*s == '_')
… …
926slf_check_repeat (pTHX_ struct CoroSLF *frame) 1091slf_check_repeat (pTHX_ struct CoroSLF *frame)
927{ 1092{
928 return 1; 1093 return 1;
929} 1094}
930 1095
931static UNOP coro_setup_op; 1096static UNOP init_perl_op;
932 1097
933static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1098ecb_noinline static void /* noinline to keep it out of the transfer fast path */
934coro_setup (pTHX_ struct coro *coro) 1099init_perl (pTHX_ struct coro *coro)
935{ 1100{
936 /* 1101 /*
937 * emulate part of the perl startup here. 1102 * emulate part of the perl startup here.
938 */ 1103 */
939 coro_init_stacks (aTHX); 1104 coro_init_stacks (aTHX);
… …
946 PL_comppad_name_fill = 0; 1111 PL_comppad_name_fill = 0;
947 PL_comppad_name_floor = 0; 1112 PL_comppad_name_floor = 0;
948 PL_curpm = 0; 1113 PL_curpm = 0;
949 PL_curpad = 0; 1114 PL_curpad = 0;
950 PL_localizing = 0; 1115 PL_localizing = 0;
951 PL_dirty = 0;
952 PL_restartop = 0; 1116 PL_restartop = 0;
953#if PERL_VERSION_ATLEAST (5,10,0) 1117#if PERL_VERSION_ATLEAST (5,10,0)
954 PL_parser = 0; 1118 PL_parser = 0;
955#endif 1119#endif
956 PL_hints = 0; 1120 PL_hints = 0;
957 1121
958 /* recreate the die/warn hooks */ 1122 /* recreate the die/warn hooks */
959 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1123 PL_diehook = SvREFCNT_inc (rv_diehook);
960 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1124 PL_warnhook = SvREFCNT_inc (rv_warnhook);
961 1125
962 GvSV (PL_defgv) = newSV (0); 1126 GvSV (PL_defgv) = newSV (0);
963 GvAV (PL_defgv) = coro->args; coro->args = 0; 1127 GvAV (PL_defgv) = coro->args; coro->args = 0;
964 GvSV (PL_errgv) = newSV (0); 1128 GvSV (PL_errgv) = newSV (0);
965 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1129 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
966 GvHV (PL_hintgv) = 0; 1130 GvHV (PL_hintgv) = 0;
… …
986 /* this newly created coroutine might be run on an existing cctx which most 1150 /* this newly created coroutine might be run on an existing cctx which most
987 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1151 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
988 */ 1152 */
989 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1153 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
990 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1154 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1155 slf_frame.destroy = 0;
991 1156
992 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1157 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
993 coro_setup_op.op_next = PL_op; 1158 init_perl_op.op_next = PL_op;
994 coro_setup_op.op_type = OP_ENTERSUB; 1159 init_perl_op.op_type = OP_ENTERSUB;
995 coro_setup_op.op_ppaddr = pp_slf; 1160 init_perl_op.op_ppaddr = pp_slf;
996 /* no flags etc. required, as an init function won't be called */ 1161 /* no flags etc. required, as an init function won't be called */
997 1162
998 PL_op = (OP *)&coro_setup_op; 1163 PL_op = (OP *)&init_perl_op;
999 1164
1000 /* copy throw, in case it was set before coro_setup */ 1165 /* copy throw, in case it was set before init_perl */
1001 CORO_THROW = coro->except; 1166 CORO_THROW = coro->except;
1002 1167
1168 SWAP_SVS (coro);
1169
1003 if (expect_false (enable_times)) 1170 if (ecb_expect_false (enable_times))
1004 { 1171 {
1005 coro_times_update (); 1172 coro_times_update ();
1006 coro_times_sub (coro); 1173 coro_times_sub (coro);
1007 } 1174 }
1008} 1175}
… …
1027 dounwind (-1); 1194 dounwind (-1);
1028 } 1195 }
1029} 1196}
1030 1197
1031static void 1198static void
1032coro_destruct_perl (pTHX_ struct coro *coro) 1199destroy_perl (pTHX_ struct coro *coro)
1033{ 1200{
1034 SV *svf [9]; 1201 SV *svf [9];
1035 1202
1036 { 1203 {
1204 SV *old_current = SvRV (coro_current);
1037 struct coro *current = SvSTATE_current; 1205 struct coro *current = SvSTATE (old_current);
1038 1206
1039 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1207 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1040 1208
1041 save_perl (aTHX_ current); 1209 save_perl (aTHX_ current);
1210
1211 /* this will cause transfer_check to croak on block*/
1212 SvRV_set (coro_current, (SV *)coro->hv);
1213
1042 load_perl (aTHX_ coro); 1214 load_perl (aTHX_ coro);
1043 1215
1044 coro_unwind_stacks (aTHX); 1216 coro_unwind_stacks (aTHX);
1217
1218 /* restore swapped sv's */
1219 SWAP_SVS (coro);
1220
1045 coro_destruct_stacks (aTHX); 1221 coro_destruct_stacks (aTHX);
1046 1222
1047 // now save some sv's to be free'd later 1223 /* now save some sv's to be free'd later */
1048 svf [0] = GvSV (PL_defgv); 1224 svf [0] = GvSV (PL_defgv);
1049 svf [1] = (SV *)GvAV (PL_defgv); 1225 svf [1] = (SV *)GvAV (PL_defgv);
1050 svf [2] = GvSV (PL_errgv); 1226 svf [2] = GvSV (PL_errgv);
1051 svf [3] = (SV *)PL_defoutgv; 1227 svf [3] = (SV *)PL_defoutgv;
1052 svf [4] = PL_rs; 1228 svf [4] = PL_rs;
… …
1054 svf [6] = (SV *)GvHV (PL_hintgv); 1230 svf [6] = (SV *)GvHV (PL_hintgv);
1055 svf [7] = PL_diehook; 1231 svf [7] = PL_diehook;
1056 svf [8] = PL_warnhook; 1232 svf [8] = PL_warnhook;
1057 assert (9 == sizeof (svf) / sizeof (*svf)); 1233 assert (9 == sizeof (svf) / sizeof (*svf));
1058 1234
1235 SvRV_set (coro_current, old_current);
1236
1059 load_perl (aTHX_ current); 1237 load_perl (aTHX_ current);
1060 } 1238 }
1061 1239
1062 { 1240 {
1063 unsigned int i; 1241 unsigned int i;
… …
1070 SvREFCNT_dec (coro->invoke_cb); 1248 SvREFCNT_dec (coro->invoke_cb);
1071 SvREFCNT_dec (coro->invoke_av); 1249 SvREFCNT_dec (coro->invoke_av);
1072 } 1250 }
1073} 1251}
1074 1252
1075INLINE void 1253ecb_inline void
1076free_coro_mortal (pTHX) 1254free_coro_mortal (pTHX)
1077{ 1255{
1078 if (expect_true (coro_mortal)) 1256 if (ecb_expect_true (coro_mortal))
1079 { 1257 {
1080 SvREFCNT_dec (coro_mortal); 1258 SvREFCNT_dec ((SV *)coro_mortal);
1081 coro_mortal = 0; 1259 coro_mortal = 0;
1082 } 1260 }
1083} 1261}
1084 1262
1085static int 1263static int
… …
1218 1396
1219 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1397 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1220} 1398}
1221 1399
1222/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1400/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1223static void NOINLINE 1401static void ecb_noinline
1224cctx_prepare (pTHX) 1402cctx_prepare (pTHX)
1225{ 1403{
1226 PL_top_env = &PL_start_env; 1404 PL_top_env = &PL_start_env;
1227 1405
1228 if (cctx_current->flags & CC_TRACE) 1406 if (cctx_current->flags & CC_TRACE)
… …
1239 slf_frame.prepare = slf_prepare_set_stacklevel; 1417 slf_frame.prepare = slf_prepare_set_stacklevel;
1240 slf_frame.check = slf_check_set_stacklevel; 1418 slf_frame.check = slf_check_set_stacklevel;
1241} 1419}
1242 1420
1243/* the tail of transfer: execute stuff we can only do after a transfer */ 1421/* the tail of transfer: execute stuff we can only do after a transfer */
1244INLINE void 1422ecb_inline void
1245transfer_tail (pTHX) 1423transfer_tail (pTHX)
1246{ 1424{
1247 free_coro_mortal (aTHX); 1425 free_coro_mortal (aTHX);
1426}
1427
1428/* try to exit the same way perl's main function would do */
1429/* we do not bother resetting the environment or other things *7
1430/* that are not, uhm, essential */
1431/* this obviously also doesn't work when perl is embedded */
1432static void ecb_noinline ecb_cold
1433perlish_exit (pTHX)
1434{
1435 int exitstatus = perl_destruct (PL_curinterp);
1436 perl_free (PL_curinterp);
1437 exit (exitstatus);
1248} 1438}
1249 1439
1250/* 1440/*
1251 * this is a _very_ stripped down perl interpreter ;) 1441 * this is a _very_ stripped down perl interpreter ;)
1252 */ 1442 */
… …
1281 */ 1471 */
1282 1472
1283 /* 1473 /*
1284 * If perl-run returns we assume exit() was being called or the coro 1474 * If perl-run returns we assume exit() was being called or the coro
1285 * fell off the end, which seems to be the only valid (non-bug) 1475 * fell off the end, which seems to be the only valid (non-bug)
1286 * reason for perl_run to return. We try to exit by jumping to the 1476 * reason for perl_run to return. We try to mimic whatever perl is normally
1287 * bootstrap-time "top" top_env, as we cannot restore the "main" 1477 * doing in that case. YMMV.
1288 * coroutine as Coro has no such concept.
1289 * This actually isn't valid with the pthread backend, but OSes requiring
1290 * that backend are too broken to do it in a standards-compliant way.
1291 */ 1478 */
1292 PL_top_env = main_top_env; 1479 perlish_exit (aTHX);
1293 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1294 } 1480 }
1295} 1481}
1296 1482
1297static coro_cctx * 1483static coro_cctx *
1298cctx_new () 1484cctx_new (void)
1299{ 1485{
1300 coro_cctx *cctx; 1486 coro_cctx *cctx;
1301 1487
1302 ++cctx_count; 1488 ++cctx_count;
1303 New (0, cctx, 1, coro_cctx); 1489 New (0, cctx, 1, coro_cctx);
… …
1309 return cctx; 1495 return cctx;
1310} 1496}
1311 1497
1312/* create a new cctx only suitable as source */ 1498/* create a new cctx only suitable as source */
1313static coro_cctx * 1499static coro_cctx *
1314cctx_new_empty () 1500cctx_new_empty (void)
1315{ 1501{
1316 coro_cctx *cctx = cctx_new (); 1502 coro_cctx *cctx = cctx_new ();
1317 1503
1318 cctx->sptr = 0; 1504 cctx->stack.sptr = 0;
1319 coro_create (&cctx->cctx, 0, 0, 0, 0); 1505 coro_create (&cctx->cctx, 0, 0, 0, 0);
1320 1506
1321 return cctx; 1507 return cctx;
1322} 1508}
1323 1509
1324/* create a new cctx suitable as destination/running a perl interpreter */ 1510/* create a new cctx suitable as destination/running a perl interpreter */
1325static coro_cctx * 1511static coro_cctx *
1326cctx_new_run () 1512cctx_new_run (void)
1327{ 1513{
1328 coro_cctx *cctx = cctx_new (); 1514 coro_cctx *cctx = cctx_new ();
1329 void *stack_start;
1330 size_t stack_size;
1331 1515
1332#if HAVE_MMAP 1516 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1333 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1334 /* mmap supposedly does allocate-on-write for us */
1335 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1336
1337 if (cctx->sptr != (void *)-1)
1338 {
1339 #if CORO_STACKGUARD
1340 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1341 #endif
1342 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1343 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1344 cctx->flags |= CC_MAPPED;
1345 } 1517 {
1346 else
1347#endif
1348 {
1349 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1350 New (0, cctx->sptr, cctx_stacksize, long);
1351
1352 if (!cctx->sptr)
1353 {
1354 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1518 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1355 _exit (EXIT_FAILURE); 1519 _exit (EXIT_FAILURE);
1356 }
1357
1358 stack_start = cctx->sptr;
1359 stack_size = cctx->ssize;
1360 } 1520 }
1361 1521
1362 #if CORO_USE_VALGRIND
1363 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1364 #endif
1365
1366 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1522 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1367 1523
1368 return cctx; 1524 return cctx;
1369} 1525}
1370 1526
1371static void 1527static void
1372cctx_destroy (coro_cctx *cctx) 1528cctx_destroy (coro_cctx *cctx)
1373{ 1529{
1374 if (!cctx) 1530 if (!cctx)
1375 return; 1531 return;
1376 1532
1377 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1533 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1378 1534
1379 --cctx_count; 1535 --cctx_count;
1380 coro_destroy (&cctx->cctx); 1536 coro_destroy (&cctx->cctx);
1381 1537
1382 /* coro_transfer creates new, empty cctx's */ 1538 coro_stack_free (&cctx->stack);
1383 if (cctx->sptr)
1384 {
1385 #if CORO_USE_VALGRIND
1386 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1387 #endif
1388
1389#if HAVE_MMAP
1390 if (cctx->flags & CC_MAPPED)
1391 munmap (cctx->sptr, cctx->ssize);
1392 else
1393#endif
1394 Safefree (cctx->sptr);
1395 }
1396 1539
1397 Safefree (cctx); 1540 Safefree (cctx);
1398} 1541}
1399 1542
1400/* wether this cctx should be destructed */ 1543/* wether this cctx should be destructed */
1401#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1544#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1402 1545
1403static coro_cctx * 1546static coro_cctx *
1404cctx_get (pTHX) 1547cctx_get (pTHX)
1405{ 1548{
1406 while (expect_true (cctx_first)) 1549 while (ecb_expect_true (cctx_first))
1407 { 1550 {
1408 coro_cctx *cctx = cctx_first; 1551 coro_cctx *cctx = cctx_first;
1409 cctx_first = cctx->next; 1552 cctx_first = cctx->next;
1410 --cctx_idle; 1553 --cctx_idle;
1411 1554
1412 if (expect_true (!CCTX_EXPIRED (cctx))) 1555 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1413 return cctx; 1556 return cctx;
1414 1557
1415 cctx_destroy (cctx); 1558 cctx_destroy (cctx);
1416 } 1559 }
1417 1560
… …
1419} 1562}
1420 1563
1421static void 1564static void
1422cctx_put (coro_cctx *cctx) 1565cctx_put (coro_cctx *cctx)
1423{ 1566{
1424 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1567 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1425 1568
1426 /* free another cctx if overlimit */ 1569 /* free another cctx if overlimit */
1427 if (expect_false (cctx_idle >= cctx_max_idle)) 1570 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1428 { 1571 {
1429 coro_cctx *first = cctx_first; 1572 coro_cctx *first = cctx_first;
1430 cctx_first = first->next; 1573 cctx_first = first->next;
1431 --cctx_idle; 1574 --cctx_idle;
1432 1575
… …
1443static void 1586static void
1444transfer_check (pTHX_ struct coro *prev, struct coro *next) 1587transfer_check (pTHX_ struct coro *prev, struct coro *next)
1445{ 1588{
1446 /* TODO: throwing up here is considered harmful */ 1589 /* TODO: throwing up here is considered harmful */
1447 1590
1448 if (expect_true (prev != next)) 1591 if (ecb_expect_true (prev != next))
1449 { 1592 {
1450 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1593 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1451 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1594 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1452 1595
1453 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1596 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1454 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1597 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1455 1598
1456#if !PERL_VERSION_ATLEAST (5,10,0) 1599#if !PERL_VERSION_ATLEAST (5,10,0)
1457 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1600 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1458 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1601 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1459#endif 1602#endif
1460 } 1603 }
1461} 1604}
1462 1605
1463/* always use the TRANSFER macro */ 1606/* always use the TRANSFER macro */
1464static void NOINLINE /* noinline so we have a fixed stackframe */ 1607static void ecb_noinline /* noinline so we have a fixed stackframe */
1465transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1608transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1466{ 1609{
1467 dSTACKLEVEL; 1610 dSTACKLEVEL;
1468 1611
1469 /* sometimes transfer is only called to set idle_sp */ 1612 /* sometimes transfer is only called to set idle_sp */
1470 if (expect_false (!prev)) 1613 if (ecb_expect_false (!prev))
1471 { 1614 {
1472 cctx_current->idle_sp = STACKLEVEL; 1615 cctx_current->idle_sp = STACKLEVEL;
1473 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1616 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1474 } 1617 }
1475 else if (expect_true (prev != next)) 1618 else if (ecb_expect_true (prev != next))
1476 { 1619 {
1477 coro_cctx *cctx_prev; 1620 coro_cctx *cctx_prev;
1478 1621
1479 if (expect_false (prev->flags & CF_NEW)) 1622 if (ecb_expect_false (prev->flags & CF_NEW))
1480 { 1623 {
1481 /* create a new empty/source context */ 1624 /* create a new empty/source context */
1482 prev->flags &= ~CF_NEW; 1625 prev->flags &= ~CF_NEW;
1483 prev->flags |= CF_RUNNING; 1626 prev->flags |= CF_RUNNING;
1484 } 1627 }
… …
1487 next->flags |= CF_RUNNING; 1630 next->flags |= CF_RUNNING;
1488 1631
1489 /* first get rid of the old state */ 1632 /* first get rid of the old state */
1490 save_perl (aTHX_ prev); 1633 save_perl (aTHX_ prev);
1491 1634
1492 if (expect_false (next->flags & CF_NEW)) 1635 if (ecb_expect_false (next->flags & CF_NEW))
1493 { 1636 {
1494 /* need to start coroutine */ 1637 /* need to start coroutine */
1495 next->flags &= ~CF_NEW; 1638 next->flags &= ~CF_NEW;
1496 /* setup coroutine call */ 1639 /* setup coroutine call */
1497 coro_setup (aTHX_ next); 1640 init_perl (aTHX_ next);
1498 } 1641 }
1499 else 1642 else
1500 load_perl (aTHX_ next); 1643 load_perl (aTHX_ next);
1501 1644
1502 /* possibly untie and reuse the cctx */ 1645 /* possibly untie and reuse the cctx */
1503 if (expect_true ( 1646 if (ecb_expect_true (
1504 cctx_current->idle_sp == STACKLEVEL 1647 cctx_current->idle_sp == STACKLEVEL
1505 && !(cctx_current->flags & CC_TRACE) 1648 && !(cctx_current->flags & CC_TRACE)
1506 && !force_cctx 1649 && !force_cctx
1507 )) 1650 ))
1508 { 1651 {
1509 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1652 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1510 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1653 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1511 1654
1512 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1655 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1513 /* without this the next cctx_get might destroy the running cctx while still in use */ 1656 /* without this the next cctx_get might destroy the running cctx while still in use */
1514 if (expect_false (CCTX_EXPIRED (cctx_current))) 1657 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1515 if (expect_true (!next->cctx)) 1658 if (ecb_expect_true (!next->cctx))
1516 next->cctx = cctx_get (aTHX); 1659 next->cctx = cctx_get (aTHX);
1517 1660
1518 cctx_put (cctx_current); 1661 cctx_put (cctx_current);
1519 } 1662 }
1520 else 1663 else
1521 prev->cctx = cctx_current; 1664 prev->cctx = cctx_current;
1522 1665
1523 ++next->usecount; 1666 ++next->usecount;
1524 1667
1525 cctx_prev = cctx_current; 1668 cctx_prev = cctx_current;
1526 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1669 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1527 1670
1528 next->cctx = 0; 1671 next->cctx = 0;
1529 1672
1530 if (expect_false (cctx_prev != cctx_current)) 1673 if (ecb_expect_false (cctx_prev != cctx_current))
1531 { 1674 {
1532 cctx_prev->top_env = PL_top_env; 1675 cctx_prev->top_env = PL_top_env;
1533 PL_top_env = cctx_current->top_env; 1676 PL_top_env = cctx_current->top_env;
1534 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1677 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1535 } 1678 }
… …
1541#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1684#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1542#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1685#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1543 1686
1544/** high level stuff ********************************************************/ 1687/** high level stuff ********************************************************/
1545 1688
1689/* this function is actually Coro, not Coro::State, but we call it from here */
1690/* because it is convenient - but it hasn't been declared yet for that reason */
1546static int 1691static void
1692coro_call_on_destroy (pTHX_ struct coro *coro);
1693
1694static void
1547coro_state_destroy (pTHX_ struct coro *coro) 1695coro_state_destroy (pTHX_ struct coro *coro)
1548{ 1696{
1549 if (coro->flags & CF_DESTROYED) 1697 if (coro->flags & CF_ZOMBIE)
1550 return 0; 1698 return;
1551 1699
1552 if (coro->on_destroy && !PL_dirty)
1553 coro->on_destroy (aTHX_ coro); 1700 slf_destroy (aTHX_ coro);
1554 1701
1555 coro->flags |= CF_DESTROYED; 1702 coro->flags |= CF_ZOMBIE;
1556 1703
1557 if (coro->flags & CF_READY) 1704 if (coro->flags & CF_READY)
1558 { 1705 {
1559 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1706 /* reduce nready, as destroying a ready coro effectively unreadies it */
1560 /* alternative: look through all ready queues and remove the coro */ 1707 /* alternative: look through all ready queues and remove the coro */
1561 --coro_nready; 1708 --coro_nready;
1562 } 1709 }
1563 else 1710 else
1564 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1711 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1712
1713 if (coro->next) coro->next->prev = coro->prev;
1714 if (coro->prev) coro->prev->next = coro->next;
1715 if (coro == coro_first) coro_first = coro->next;
1565 1716
1566 if (coro->mainstack 1717 if (coro->mainstack
1567 && coro->mainstack != main_mainstack 1718 && coro->mainstack != main_mainstack
1568 && coro->slot 1719 && coro->slot
1569 && !PL_dirty) 1720 && !PL_dirty)
1570 coro_destruct_perl (aTHX_ coro); 1721 destroy_perl (aTHX_ coro);
1571 1722
1572 cctx_destroy (coro->cctx); 1723 cctx_destroy (coro->cctx);
1573 SvREFCNT_dec (coro->startcv); 1724 SvREFCNT_dec (coro->startcv);
1574 SvREFCNT_dec (coro->args); 1725 SvREFCNT_dec (coro->args);
1726 SvREFCNT_dec (coro->swap_sv);
1575 SvREFCNT_dec (CORO_THROW); 1727 SvREFCNT_dec (CORO_THROW);
1576 1728
1577 if (coro->next) coro->next->prev = coro->prev; 1729 coro_call_on_destroy (aTHX_ coro);
1578 if (coro->prev) coro->prev->next = coro->next;
1579 if (coro == coro_first) coro_first = coro->next;
1580 1730
1581 return 1; 1731 /* more destruction mayhem in coro_state_free */
1582} 1732}
1583 1733
1584static int 1734static int
1585coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1735coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1586{ 1736{
1587 struct coro *coro = (struct coro *)mg->mg_ptr; 1737 struct coro *coro = (struct coro *)mg->mg_ptr;
1588 mg->mg_ptr = 0; 1738 mg->mg_ptr = 0;
1589 1739
1590 coro->hv = 0;
1591
1592 if (--coro->refcnt < 0)
1593 {
1594 coro_state_destroy (aTHX_ coro); 1740 coro_state_destroy (aTHX_ coro);
1741 SvREFCNT_dec (coro->on_destroy);
1742 SvREFCNT_dec (coro->status);
1743
1595 Safefree (coro); 1744 Safefree (coro);
1596 }
1597 1745
1598 return 0; 1746 return 0;
1599} 1747}
1600 1748
1601static int 1749static int ecb_cold
1602coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1750coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1603{ 1751{
1604 struct coro *coro = (struct coro *)mg->mg_ptr; 1752 /* called when perl clones the current process the slow way (windows process emulation) */
1605 1753 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1606 ++coro->refcnt; 1754 mg->mg_ptr = 0;
1755 mg->mg_virtual = 0;
1607 1756
1608 return 0; 1757 return 0;
1609} 1758}
1610 1759
1611static MGVTBL coro_state_vtbl = { 1760static MGVTBL coro_state_vtbl = {
… …
1636 TRANSFER (ta, 1); 1785 TRANSFER (ta, 1);
1637} 1786}
1638 1787
1639/** Coro ********************************************************************/ 1788/** Coro ********************************************************************/
1640 1789
1641INLINE void 1790ecb_inline void
1642coro_enq (pTHX_ struct coro *coro) 1791coro_enq (pTHX_ struct coro *coro)
1643{ 1792{
1644 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1793 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1645 1794
1646 SvREFCNT_inc_NN (coro->hv); 1795 SvREFCNT_inc_NN (coro->hv);
… …
1648 coro->next_ready = 0; 1797 coro->next_ready = 0;
1649 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1798 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1650 ready [1] = coro; 1799 ready [1] = coro;
1651} 1800}
1652 1801
1653INLINE struct coro * 1802ecb_inline struct coro *
1654coro_deq (pTHX) 1803coro_deq (pTHX)
1655{ 1804{
1656 int prio; 1805 int prio;
1657 1806
1658 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1807 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1711{ 1860{
1712 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1861 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1713} 1862}
1714 1863
1715/* expects to own a reference to next->hv */ 1864/* expects to own a reference to next->hv */
1716INLINE void 1865ecb_inline void
1717prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1866prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1718{ 1867{
1719 SV *prev_sv = SvRV (coro_current); 1868 SV *prev_sv = SvRV (coro_current);
1720 1869
1721 ta->prev = SvSTATE_hv (prev_sv); 1870 ta->prev = SvSTATE_hv (prev_sv);
… …
1734{ 1883{
1735 for (;;) 1884 for (;;)
1736 { 1885 {
1737 struct coro *next = coro_deq (aTHX); 1886 struct coro *next = coro_deq (aTHX);
1738 1887
1739 if (expect_true (next)) 1888 if (ecb_expect_true (next))
1740 { 1889 {
1741 /* cannot transfer to destroyed coros, skip and look for next */ 1890 /* cannot transfer to destroyed coros, skip and look for next */
1742 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1891 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1743 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1892 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1744 else 1893 else
1745 { 1894 {
1746 next->flags &= ~CF_READY; 1895 next->flags &= ~CF_READY;
1747 --coro_nready; 1896 --coro_nready;
… …
1754 { 1903 {
1755 /* nothing to schedule: call the idle handler */ 1904 /* nothing to schedule: call the idle handler */
1756 if (SvROK (sv_idle) 1905 if (SvROK (sv_idle)
1757 && SvOBJECT (SvRV (sv_idle))) 1906 && SvOBJECT (SvRV (sv_idle)))
1758 { 1907 {
1908 if (SvRV (sv_idle) == SvRV (coro_current))
1909 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1910
1759 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1911 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1760 api_ready (aTHX_ SvRV (sv_idle)); 1912 api_ready (aTHX_ SvRV (sv_idle));
1761 --coro_nready; 1913 --coro_nready;
1762 } 1914 }
1763 else 1915 else
1764 { 1916 {
1917 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1765 dSP; 1918 dSP;
1766 1919
1767 ENTER; 1920 ENTER;
1768 SAVETMPS; 1921 SAVETMPS;
1769 1922
… …
1776 } 1929 }
1777 } 1930 }
1778 } 1931 }
1779} 1932}
1780 1933
1781INLINE void 1934ecb_inline void
1782prepare_cede (pTHX_ struct coro_transfer_args *ta) 1935prepare_cede (pTHX_ struct coro_transfer_args *ta)
1783{ 1936{
1784 api_ready (aTHX_ coro_current); 1937 api_ready (aTHX_ coro_current);
1785 prepare_schedule (aTHX_ ta); 1938 prepare_schedule (aTHX_ ta);
1786} 1939}
1787 1940
1788INLINE void 1941ecb_inline void
1789prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1942prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1790{ 1943{
1791 SV *prev = SvRV (coro_current); 1944 SV *prev = SvRV (coro_current);
1792 1945
1793 if (coro_nready) 1946 if (coro_nready)
… …
1823{ 1976{
1824 struct coro_transfer_args ta; 1977 struct coro_transfer_args ta;
1825 1978
1826 prepare_cede (aTHX_ &ta); 1979 prepare_cede (aTHX_ &ta);
1827 1980
1828 if (expect_true (ta.prev != ta.next)) 1981 if (ecb_expect_true (ta.prev != ta.next))
1829 { 1982 {
1830 TRANSFER (ta, 1); 1983 TRANSFER (ta, 1);
1831 return 1; 1984 return 1;
1832 } 1985 }
1833 else 1986 else
… …
1876 coro->slot->runops = RUNOPS_DEFAULT; 2029 coro->slot->runops = RUNOPS_DEFAULT;
1877 } 2030 }
1878} 2031}
1879 2032
1880static void 2033static void
2034coro_push_av (pTHX_ AV *av, I32 gimme_v)
2035{
2036 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2037 {
2038 dSP;
2039
2040 if (gimme_v == G_SCALAR)
2041 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2042 else
2043 {
2044 int i;
2045 EXTEND (SP, AvFILLp (av) + 1);
2046
2047 for (i = 0; i <= AvFILLp (av); ++i)
2048 PUSHs (AvARRAY (av)[i]);
2049 }
2050
2051 PUTBACK;
2052 }
2053}
2054
2055static void
2056coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2057{
2058 if (!coro->on_destroy)
2059 coro->on_destroy = newAV ();
2060
2061 av_push (coro->on_destroy, cb);
2062}
2063
2064static void
2065slf_destroy_join (pTHX_ struct CoroSLF *frame)
2066{
2067 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2068}
2069
2070static int
2071slf_check_join (pTHX_ struct CoroSLF *frame)
2072{
2073 struct coro *coro = (struct coro *)frame->data;
2074
2075 if (!coro->status)
2076 return 1;
2077
2078 frame->destroy = 0;
2079
2080 coro_push_av (aTHX_ coro->status, GIMME_V);
2081
2082 SvREFCNT_dec ((SV *)coro->hv);
2083
2084 return 0;
2085}
2086
2087static void
2088slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2089{
2090 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2091
2092 if (items > 1)
2093 croak ("join called with too many arguments");
2094
2095 if (coro->status)
2096 frame->prepare = prepare_nop;
2097 else
2098 {
2099 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2100 frame->prepare = prepare_schedule;
2101 }
2102
2103 frame->check = slf_check_join;
2104 frame->destroy = slf_destroy_join;
2105 frame->data = (void *)coro;
2106 SvREFCNT_inc (coro->hv);
2107}
2108
2109static void
1881coro_call_on_destroy (pTHX_ struct coro *coro) 2110coro_call_on_destroy (pTHX_ struct coro *coro)
1882{ 2111{
1883 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2112 AV *od = coro->on_destroy;
1884 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1885 2113
1886 if (on_destroyp) 2114 if (!od)
1887 { 2115 return;
1888 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1889 2116
2117 coro->on_destroy = 0;
2118 sv_2mortal ((SV *)od);
2119
1890 while (AvFILLp (on_destroy) >= 0) 2120 while (AvFILLp (od) >= 0)
2121 {
2122 SV *cb = sv_2mortal (av_pop (od));
2123
2124 /* coro hv's (and only hv's at the moment) are supported as well */
2125 if (SvSTATEhv_p (aTHX_ cb))
2126 api_ready (aTHX_ cb);
2127 else
1891 { 2128 {
1892 dSP; /* don't disturb outer sp */ 2129 dSP; /* don't disturb outer sp */
1893 SV *cb = av_pop (on_destroy);
1894
1895 PUSHMARK (SP); 2130 PUSHMARK (SP);
1896 2131
1897 if (statusp) 2132 if (coro->status)
1898 { 2133 {
1899 int i; 2134 PUTBACK;
1900 AV *status = (AV *)SvRV (*statusp); 2135 coro_push_av (aTHX_ coro->status, G_ARRAY);
1901 EXTEND (SP, AvFILLp (status) + 1); 2136 SPAGAIN;
1902
1903 for (i = 0; i <= AvFILLp (status); ++i)
1904 PUSHs (AvARRAY (status)[i]);
1905 } 2137 }
1906 2138
1907 PUTBACK; 2139 PUTBACK;
1908 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2140 call_sv (cb, G_VOID | G_DISCARD);
1909 } 2141 }
1910 } 2142 }
1911} 2143}
1912 2144
1913static void 2145static void
1914slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2146coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1915{ 2147{
1916 int i; 2148 AV *av;
1917 HV *hv = (HV *)SvRV (coro_current); 2149
1918 AV *av = newAV (); 2150 if (coro->status)
2151 {
2152 av = coro->status;
2153 av_clear (av);
2154 }
2155 else
2156 av = coro->status = newAV ();
1919 2157
1920 /* items are actually not so common, so optimise for this case */ 2158 /* items are actually not so common, so optimise for this case */
1921 if (items) 2159 if (items)
1922 { 2160 {
2161 int i;
2162
1923 av_extend (av, items - 1); 2163 av_extend (av, items - 1);
1924 2164
1925 for (i = 0; i < items; ++i) 2165 for (i = 0; i < items; ++i)
1926 av_push (av, SvREFCNT_inc_NN (arg [i])); 2166 av_push (av, SvREFCNT_inc_NN (arg [i]));
1927 } 2167 }
2168}
1928 2169
1929 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2170static void
1930 2171slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2172{
1931 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2173 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1932 api_ready (aTHX_ sv_manager); 2174 api_ready (aTHX_ sv_manager);
1933 2175
1934 frame->prepare = prepare_schedule; 2176 frame->prepare = prepare_schedule;
1935 frame->check = slf_check_repeat; 2177 frame->check = slf_check_repeat;
1936 2178
1937 /* as a minor optimisation, we could unwind all stacks here */ 2179 /* as a minor optimisation, we could unwind all stacks here */
1938 /* but that puts extra pressure on pp_slf, and is not worth much */ 2180 /* but that puts extra pressure on pp_slf, and is not worth much */
1939 /*coro_unwind_stacks (aTHX);*/ 2181 /*coro_unwind_stacks (aTHX);*/
2182}
2183
2184static void
2185slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2186{
2187 HV *coro_hv = (HV *)SvRV (coro_current);
2188
2189 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2190 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2191}
2192
2193static void
2194slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2195{
2196 HV *coro_hv;
2197 struct coro *coro;
2198
2199 if (items <= 0)
2200 croak ("Coro::cancel called without coro object,");
2201
2202 coro = SvSTATE (arg [0]);
2203 coro_hv = coro->hv;
2204
2205 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2206
2207 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2208 {
2209 /* coro currently busy cancelling something, so just notify it */
2210 coro->slf_frame.data = (void *)coro;
2211
2212 frame->prepare = prepare_nop;
2213 frame->check = slf_check_nop;
2214 }
2215 else if (coro_hv == (HV *)SvRV (coro_current))
2216 {
2217 /* cancelling the current coro is allowed, and equals terminate */
2218 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2219 }
2220 else
2221 {
2222 struct coro *self = SvSTATE_current;
2223
2224 /* otherwise we cancel directly, purely for speed reasons
2225 * unfortunately, this requires some magic trickery, as
2226 * somebody else could cancel us, so we have to fight the cancellation.
2227 * this is ugly, and hopefully fully worth the extra speed.
2228 * besides, I can't get the slow-but-safe version working...
2229 */
2230 slf_frame.data = 0;
2231 self->flags |= CF_NOCANCEL;
2232 coro_state_destroy (aTHX_ coro);
2233 self->flags &= ~CF_NOCANCEL;
2234
2235 if (slf_frame.data)
2236 {
2237 /* while we were busy we have been cancelled, so terminate */
2238 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2239 }
2240 else
2241 {
2242 frame->prepare = prepare_nop;
2243 frame->check = slf_check_nop;
2244 }
2245 }
2246}
2247
2248static int
2249slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2250{
2251 frame->prepare = 0;
2252 coro_unwind_stacks (aTHX);
2253
2254 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2255
2256 return 1;
2257}
2258
2259static int
2260safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2261{
2262 if (coro->cctx)
2263 croak ("coro inside C callback, unable to cancel at this time, caught");
2264
2265 if (coro->flags & CF_NEW)
2266 {
2267 coro_set_status (aTHX_ coro, arg, items);
2268 coro_state_destroy (aTHX_ coro);
2269 }
2270 else
2271 {
2272 if (!coro->slf_frame.prepare)
2273 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2274
2275 slf_destroy (aTHX_ coro);
2276
2277 coro_set_status (aTHX_ coro, arg, items);
2278 coro->slf_frame.prepare = prepare_nop;
2279 coro->slf_frame.check = slf_check_safe_cancel;
2280
2281 api_ready (aTHX_ (SV *)coro->hv);
2282 }
2283
2284 return 1;
1940} 2285}
1941 2286
1942/*****************************************************************************/ 2287/*****************************************************************************/
1943/* async pool handler */ 2288/* async pool handler */
1944 2289
… …
1975slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2320slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1976{ 2321{
1977 HV *hv = (HV *)SvRV (coro_current); 2322 HV *hv = (HV *)SvRV (coro_current);
1978 struct coro *coro = SvSTATE_hv ((SV *)hv); 2323 struct coro *coro = SvSTATE_hv ((SV *)hv);
1979 2324
1980 if (expect_true (coro->saved_deffh)) 2325 if (ecb_expect_true (coro->saved_deffh))
1981 { 2326 {
1982 /* subsequent iteration */ 2327 /* subsequent iteration */
1983 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2328 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1984 coro->saved_deffh = 0; 2329 coro->saved_deffh = 0;
1985 2330
1986 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2331 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1987 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2332 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1988 { 2333 {
1989 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2334 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1990 coro->invoke_av = newAV (); 2335 return;
1991
1992 frame->prepare = prepare_nop;
1993 } 2336 }
1994 else 2337 else
1995 { 2338 {
1996 av_clear (GvAV (PL_defgv)); 2339 av_clear (GvAV (PL_defgv));
1997 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2340 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2047 2390
2048static int 2391static int
2049slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2392slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2050{ 2393{
2051 SV *data = (SV *)frame->data; 2394 SV *data = (SV *)frame->data;
2052 2395
2053 if (CORO_THROW) 2396 if (CORO_THROW)
2054 return 0; 2397 return 0;
2055 2398
2056 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2399 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2057 return 1; 2400 return 1;
… …
2093 cb = sv_2mortal (coro->rouse_cb); 2436 cb = sv_2mortal (coro->rouse_cb);
2094 coro->rouse_cb = 0; 2437 coro->rouse_cb = 0;
2095 } 2438 }
2096 2439
2097 if (!SvROK (cb) 2440 if (!SvROK (cb)
2098 || SvTYPE (SvRV (cb)) != SVt_PVCV 2441 || SvTYPE (SvRV (cb)) != SVt_PVCV
2099 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2442 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2100 croak ("Coro::rouse_wait called with illegal callback argument,"); 2443 croak ("Coro::rouse_wait called with illegal callback argument,");
2101 2444
2102 { 2445 {
2103 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2446 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2220static void 2563static void
2221slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2564slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2222{ 2565{
2223 frame->prepare = prepare_cede_notself; 2566 frame->prepare = prepare_cede_notself;
2224 frame->check = slf_check_nop; 2567 frame->check = slf_check_nop;
2568}
2569
2570/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2571static void
2572slf_destroy (pTHX_ struct coro *coro)
2573{
2574 /* this callback is reserved for slf functions needing to do cleanup */
2575 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2576 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2577
2578 /*
2579 * The on_destroy above most likely is from an SLF call.
2580 * Since by definition the SLF call will not finish when we destroy
2581 * the coro, we will have to force-finish it here, otherwise
2582 * cleanup functions cannot call SLF functions.
2583 */
2584 coro->slf_frame.prepare = 0;
2225} 2585}
2226 2586
2227/* 2587/*
2228 * these not obviously related functions are all rolled into one 2588 * these not obviously related functions are all rolled into one
2229 * function to increase chances that they all will call transfer with the same 2589 * function to increase chances that they all will call transfer with the same
… …
2236 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2596 I32 checkmark; /* mark SP to see how many elements check has pushed */
2237 2597
2238 /* set up the slf frame, unless it has already been set-up */ 2598 /* set up the slf frame, unless it has already been set-up */
2239 /* the latter happens when a new coro has been started */ 2599 /* the latter happens when a new coro has been started */
2240 /* or when a new cctx was attached to an existing coroutine */ 2600 /* or when a new cctx was attached to an existing coroutine */
2241 if (expect_true (!slf_frame.prepare)) 2601 if (ecb_expect_true (!slf_frame.prepare))
2242 { 2602 {
2243 /* first iteration */ 2603 /* first iteration */
2244 dSP; 2604 dSP;
2245 SV **arg = PL_stack_base + TOPMARK + 1; 2605 SV **arg = PL_stack_base + TOPMARK + 1;
2246 int items = SP - arg; /* args without function object */ 2606 int items = SP - arg; /* args without function object */
… …
2287 while (slf_frame.check (aTHX_ &slf_frame)); 2647 while (slf_frame.check (aTHX_ &slf_frame));
2288 2648
2289 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2649 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2290 2650
2291 /* exception handling */ 2651 /* exception handling */
2292 if (expect_false (CORO_THROW)) 2652 if (ecb_expect_false (CORO_THROW))
2293 { 2653 {
2294 SV *exception = sv_2mortal (CORO_THROW); 2654 SV *exception = sv_2mortal (CORO_THROW);
2295 2655
2296 CORO_THROW = 0; 2656 CORO_THROW = 0;
2297 sv_setsv (ERRSV, exception); 2657 sv_setsv (ERRSV, exception);
2298 croak (0); 2658 croak (0);
2299 } 2659 }
2300 2660
2301 /* return value handling - mostly like entersub */ 2661 /* return value handling - mostly like entersub */
2302 /* make sure we put something on the stack in scalar context */ 2662 /* make sure we put something on the stack in scalar context */
2303 if (GIMME_V == G_SCALAR) 2663 if (GIMME_V == G_SCALAR
2664 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2304 { 2665 {
2305 dSP; 2666 dSP;
2306 SV **bot = PL_stack_base + checkmark; 2667 SV **bot = PL_stack_base + checkmark;
2307 2668
2308 if (sp == bot) /* too few, push undef */ 2669 if (sp == bot) /* too few, push undef */
2309 bot [1] = &PL_sv_undef; 2670 bot [1] = &PL_sv_undef;
2310 else if (sp != bot + 1) /* too many, take last one */ 2671 else /* too many, take last one */
2311 bot [1] = *sp; 2672 bot [1] = *sp;
2312 2673
2313 SP = bot + 1; 2674 SP = bot + 1;
2314 2675
2315 PUTBACK; 2676 PUTBACK;
… …
2348 if (PL_op->op_flags & OPf_STACKED) 2709 if (PL_op->op_flags & OPf_STACKED)
2349 { 2710 {
2350 if (items > slf_arga) 2711 if (items > slf_arga)
2351 { 2712 {
2352 slf_arga = items; 2713 slf_arga = items;
2353 free (slf_argv); 2714 Safefree (slf_argv);
2354 slf_argv = malloc (slf_arga * sizeof (SV *)); 2715 New (0, slf_argv, slf_arga, SV *);
2355 } 2716 }
2356 2717
2357 slf_argc = items; 2718 slf_argc = items;
2358 2719
2359 for (i = 0; i < items; ++i) 2720 for (i = 0; i < items; ++i)
… …
2422{ 2783{
2423 PerlIOBuf base; 2784 PerlIOBuf base;
2424 NV next, every; 2785 NV next, every;
2425} PerlIOCede; 2786} PerlIOCede;
2426 2787
2427static IV 2788static IV ecb_cold
2428PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2789PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2429{ 2790{
2430 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2791 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2431 2792
2432 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2793 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2433 self->next = nvtime () + self->every; 2794 self->next = nvtime () + self->every;
2434 2795
2435 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2796 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2436} 2797}
2437 2798
2438static SV * 2799static SV * ecb_cold
2439PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2800PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2440{ 2801{
2441 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2802 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2442 2803
2443 return newSVnv (self->every); 2804 return newSVnv (self->every);
… …
2555 SvREFCNT_dec (cb); 2916 SvREFCNT_dec (cb);
2556 } 2917 }
2557} 2918}
2558 2919
2559static void 2920static void
2560coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2921coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2561{ 2922{
2562 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2923 /* call $sem->adjust (0) to possibly wake up some other waiters */
2563 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2924 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2564} 2925}
2565 2926
2566static int 2927static int
2567slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2928slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2568{ 2929{
2569 AV *av = (AV *)frame->data; 2930 AV *av = (AV *)frame->data;
2570 SV *count_sv = AvARRAY (av)[0]; 2931 SV *count_sv = AvARRAY (av)[0];
2932 SV *coro_hv = SvRV (coro_current);
2571 2933
2572 /* if we are about to throw, don't actually acquire the lock, just throw */ 2934 /* if we are about to throw, don't actually acquire the lock, just throw */
2573 if (CORO_THROW) 2935 if (CORO_THROW)
2574 return 0; 2936 return 0;
2575 else if (SvIVX (count_sv) > 0) 2937 else if (SvIVX (count_sv) > 0)
2576 { 2938 {
2577 SvSTATE_current->on_destroy = 0; 2939 frame->destroy = 0;
2578 2940
2579 if (acquire) 2941 if (acquire)
2580 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2942 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2581 else 2943 else
2582 coro_semaphore_adjust (aTHX_ av, 0); 2944 coro_semaphore_adjust (aTHX_ av, 0);
… …
2587 { 2949 {
2588 int i; 2950 int i;
2589 /* if we were woken up but can't down, we look through the whole */ 2951 /* if we were woken up but can't down, we look through the whole */
2590 /* waiters list and only add us if we aren't in there already */ 2952 /* waiters list and only add us if we aren't in there already */
2591 /* this avoids some degenerate memory usage cases */ 2953 /* this avoids some degenerate memory usage cases */
2592 2954 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2593 for (i = 1; i <= AvFILLp (av); ++i)
2594 if (AvARRAY (av)[i] == SvRV (coro_current)) 2955 if (AvARRAY (av)[i] == coro_hv)
2595 return 1; 2956 return 1;
2596 2957
2597 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2958 av_push (av, SvREFCNT_inc (coro_hv));
2598 return 1; 2959 return 1;
2599 } 2960 }
2600} 2961}
2601 2962
2602static int 2963static int
… …
2625 { 2986 {
2626 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2987 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2627 2988
2628 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2989 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2629 frame->prepare = prepare_schedule; 2990 frame->prepare = prepare_schedule;
2630
2631 /* to avoid race conditions when a woken-up coro gets terminated */ 2991 /* to avoid race conditions when a woken-up coro gets terminated */
2632 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2992 /* we arrange for a temporary on_destroy that calls adjust (0) */
2633 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2993 frame->destroy = coro_semaphore_destroy;
2634 } 2994 }
2635} 2995}
2636 2996
2637static void 2997static void
2638slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2998slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2720 { 3080 {
2721 SV *cb_cv = s_get_cv_croak (arg [1]); 3081 SV *cb_cv = s_get_cv_croak (arg [1]);
2722 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3082 av_push (av, SvREFCNT_inc_NN (cb_cv));
2723 3083
2724 if (SvIVX (AvARRAY (av)[0])) 3084 if (SvIVX (AvARRAY (av)[0]))
2725 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3085 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2726 3086
2727 frame->prepare = prepare_nop; 3087 frame->prepare = prepare_nop;
2728 frame->check = slf_check_nop; 3088 frame->check = slf_check_nop;
2729 } 3089 }
2730 else if (SvIVX (AvARRAY (av)[0])) 3090 else if (SvIVX (AvARRAY (av)[0]))
… …
2807 /* it quickly returns */ 3167 /* it quickly returns */
2808 if (CORO_THROW) 3168 if (CORO_THROW)
2809 return 0; 3169 return 0;
2810 3170
2811 /* one element that is an RV? repeat! */ 3171 /* one element that is an RV? repeat! */
2812 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3172 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2813 return 1; 3173 return 1;
2814 3174
2815 /* restore status */ 3175 /* restore status */
2816 { 3176 {
2817 SV *data_sv = av_pop (state); 3177 SV *data_sv = av_pop (state);
… …
2856 dSP; 3216 dSP;
2857 3217
2858 static SV *prio_cv; 3218 static SV *prio_cv;
2859 static SV *prio_sv; 3219 static SV *prio_sv;
2860 3220
2861 if (expect_false (!prio_cv)) 3221 if (ecb_expect_false (!prio_cv))
2862 { 3222 {
2863 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3223 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2864 prio_sv = newSViv (0); 3224 prio_sv = newSViv (0);
2865 } 3225 }
2866 3226
… …
2892 /* now call the AIO function - we assume our request is uncancelable */ 3252 /* now call the AIO function - we assume our request is uncancelable */
2893 PUTBACK; 3253 PUTBACK;
2894 call_sv ((SV *)req, G_VOID | G_DISCARD); 3254 call_sv ((SV *)req, G_VOID | G_DISCARD);
2895 } 3255 }
2896 3256
2897 /* now that the requets is going, we loop toll we have a result */ 3257 /* now that the request is going, we loop till we have a result */
2898 frame->data = (void *)state; 3258 frame->data = (void *)state;
2899 frame->prepare = prepare_schedule; 3259 frame->prepare = prepare_schedule;
2900 frame->check = slf_check_aio_req; 3260 frame->check = slf_check_aio_req;
2901} 3261}
2902 3262
… …
2972 } 3332 }
2973 3333
2974 return coro_sv; 3334 return coro_sv;
2975} 3335}
2976 3336
3337#ifndef __cplusplus
3338ecb_cold XS(boot_Coro__State);
3339#endif
3340
3341#if CORO_JIT
3342
3343static void ecb_noinline ecb_cold
3344pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3345{
3346 dSP;
3347 AV *av = newAV ();
3348
3349 av_store (av, 3, newSVuv (d));
3350 av_store (av, 2, newSVuv (c));
3351 av_store (av, 1, newSVuv (b));
3352 av_store (av, 0, newSVuv (a));
3353
3354 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3355
3356 PUTBACK;
3357}
3358
3359static void ecb_noinline ecb_cold
3360jit_init (pTHX)
3361{
3362 dSP;
3363 SV *load, *save;
3364 char *map_base;
3365 char *load_ptr, *save_ptr;
3366 STRLEN load_len, save_len, map_len;
3367 int count;
3368
3369 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3370
3371 PUSHMARK (SP);
3372 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3373 #include "state.h"
3374 count = call_pv ("Coro::State::_jit", G_ARRAY);
3375 SPAGAIN;
3376
3377 save = POPs; save_ptr = SvPVbyte (save, save_len);
3378 load = POPs; load_ptr = SvPVbyte (load, load_len);
3379
3380 map_len = load_len + save_len + 16;
3381
3382 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3383
3384 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3385
3386 load_perl_slots = (load_save_perl_slots_type)map_base;
3387 memcpy (map_base, load_ptr, load_len);
3388
3389 map_base += (load_len + 15) & ~15;
3390
3391 save_perl_slots = (load_save_perl_slots_type)map_base;
3392 memcpy (map_base, save_ptr, save_len);
3393
3394 /* we are good citizens and try to make the page read-only, so the evil evil */
3395 /* hackers might have it a bit more difficult */
3396 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3397
3398 PUTBACK;
3399 eval_pv ("undef &Coro::State::_jit", 1);
3400}
3401
3402#endif
3403
2977MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3404MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2978 3405
2979PROTOTYPES: DISABLE 3406PROTOTYPES: DISABLE
2980 3407
2981BOOT: 3408BOOT:
… …
2983#ifdef USE_ITHREADS 3410#ifdef USE_ITHREADS
2984# if CORO_PTHREAD 3411# if CORO_PTHREAD
2985 coro_thx = PERL_GET_CONTEXT; 3412 coro_thx = PERL_GET_CONTEXT;
2986# endif 3413# endif
2987#endif 3414#endif
2988 BOOT_PAGESIZE; 3415 /* perl defines these to check for existance first, but why it doesn't */
3416 /* just create them one at init time is not clear to me, except for */
3417 /* programs trying to delete them, but... */
3418 /* anyway, we declare this as invalid and make sure they are initialised here */
3419 DEFSV;
3420 ERRSV;
2989 3421
2990 cctx_current = cctx_new_empty (); 3422 cctx_current = cctx_new_empty ();
2991 3423
2992 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3424 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2993 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3425 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
3033 coroapi.prepare_nop = prepare_nop; 3465 coroapi.prepare_nop = prepare_nop;
3034 coroapi.prepare_schedule = prepare_schedule; 3466 coroapi.prepare_schedule = prepare_schedule;
3035 coroapi.prepare_cede = prepare_cede; 3467 coroapi.prepare_cede = prepare_cede;
3036 coroapi.prepare_cede_notself = prepare_cede_notself; 3468 coroapi.prepare_cede_notself = prepare_cede_notself;
3037 3469
3038 { 3470 time_init (aTHX);
3039 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3040
3041 if (!svp) croak ("Time::HiRes is required");
3042 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3043
3044 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3045
3046 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3047 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3048 }
3049 3471
3050 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3472 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3473#if CORO_JIT
3474 PUTBACK;
3475 jit_init (aTHX);
3476 SPAGAIN;
3477#endif
3051} 3478}
3052 3479
3053SV * 3480SV *
3054new (SV *klass, ...) 3481new (SV *klass, ...)
3055 ALIAS: 3482 ALIAS:
… …
3062void 3489void
3063transfer (...) 3490transfer (...)
3064 PROTOTYPE: $$ 3491 PROTOTYPE: $$
3065 CODE: 3492 CODE:
3066 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3493 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3067
3068bool
3069_destroy (SV *coro_sv)
3070 CODE:
3071 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3072 OUTPUT:
3073 RETVAL
3074
3075void
3076_exit (int code)
3077 PROTOTYPE: $
3078 CODE:
3079 _exit (code);
3080 3494
3081SV * 3495SV *
3082clone (Coro::State coro) 3496clone (Coro::State coro)
3083 CODE: 3497 CODE:
3084{ 3498{
… …
3139void 3553void
3140list () 3554list ()
3141 PROTOTYPE: 3555 PROTOTYPE:
3142 PPCODE: 3556 PPCODE:
3143{ 3557{
3144 struct coro *coro; 3558 struct coro *coro;
3145 for (coro = coro_first; coro; coro = coro->next) 3559 for (coro = coro_first; coro; coro = coro->next)
3146 if (coro->hv) 3560 if (coro->hv)
3147 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3561 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3148} 3562}
3149 3563
… …
3154 CODE: 3568 CODE:
3155{ 3569{
3156 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3570 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3157 { 3571 {
3158 struct coro *current = SvSTATE_current; 3572 struct coro *current = SvSTATE_current;
3573 struct CoroSLF slf_save;
3159 3574
3160 if (current != coro) 3575 if (current != coro)
3161 { 3576 {
3162 PUTBACK; 3577 PUTBACK;
3163 save_perl (aTHX_ current); 3578 save_perl (aTHX_ current);
3164 load_perl (aTHX_ coro); 3579 load_perl (aTHX_ coro);
3580 /* the coro is most likely in an active SLF call.
3581 * while not strictly required (the code we execute is
3582 * not allowed to call any SLF functions), it's cleaner
3583 * to reinitialise the slf_frame and restore it later.
3584 * This might one day allow us to actually do SLF calls
3585 * from code executed here.
3586 */
3587 slf_save = slf_frame;
3588 slf_frame.prepare = 0;
3165 SPAGAIN; 3589 SPAGAIN;
3166 } 3590 }
3167 3591
3168 PUSHSTACK; 3592 PUSHSTACK;
3169 3593
… …
3179 SPAGAIN; 3603 SPAGAIN;
3180 3604
3181 if (current != coro) 3605 if (current != coro)
3182 { 3606 {
3183 PUTBACK; 3607 PUTBACK;
3608 slf_frame = slf_save;
3184 save_perl (aTHX_ coro); 3609 save_perl (aTHX_ coro);
3185 load_perl (aTHX_ current); 3610 load_perl (aTHX_ current);
3186 SPAGAIN; 3611 SPAGAIN;
3187 } 3612 }
3188 } 3613 }
… …
3193 PROTOTYPE: $ 3618 PROTOTYPE: $
3194 ALIAS: 3619 ALIAS:
3195 is_ready = CF_READY 3620 is_ready = CF_READY
3196 is_running = CF_RUNNING 3621 is_running = CF_RUNNING
3197 is_new = CF_NEW 3622 is_new = CF_NEW
3198 is_destroyed = CF_DESTROYED 3623 is_destroyed = CF_ZOMBIE
3624 is_zombie = CF_ZOMBIE
3199 is_suspended = CF_SUSPENDED 3625 is_suspended = CF_SUSPENDED
3200 CODE: 3626 CODE:
3201 RETVAL = boolSV (coro->flags & ix); 3627 RETVAL = boolSV (coro->flags & ix);
3202 OUTPUT: 3628 OUTPUT:
3203 RETVAL 3629 RETVAL
3204 3630
3205void 3631void
3206throw (Coro::State self, SV *throw = &PL_sv_undef) 3632throw (SV *self, SV *exception = &PL_sv_undef)
3207 PROTOTYPE: $;$ 3633 PROTOTYPE: $;$
3208 CODE: 3634 CODE:
3209{ 3635{
3636 struct coro *coro = SvSTATE (self);
3210 struct coro *current = SvSTATE_current; 3637 struct coro *current = SvSTATE_current;
3211 SV **throwp = self == current ? &CORO_THROW : &self->except; 3638 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3212 SvREFCNT_dec (*throwp); 3639 SvREFCNT_dec (*exceptionp);
3213 SvGETMAGIC (throw); 3640 SvGETMAGIC (exception);
3214 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3641 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3642
3643 api_ready (aTHX_ self);
3215} 3644}
3216 3645
3217void 3646void
3218api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3647api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3219 PROTOTYPE: $;$ 3648 PROTOTYPE: $;$
… …
3274 3703
3275void 3704void
3276cancel (Coro::State self) 3705cancel (Coro::State self)
3277 CODE: 3706 CODE:
3278 coro_state_destroy (aTHX_ self); 3707 coro_state_destroy (aTHX_ self);
3279 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3280
3281 3708
3282SV * 3709SV *
3283enable_times (int enabled = enable_times) 3710enable_times (int enabled = enable_times)
3284 CODE: 3711 CODE:
3285{ 3712{
… …
3298 3725
3299void 3726void
3300times (Coro::State self) 3727times (Coro::State self)
3301 PPCODE: 3728 PPCODE:
3302{ 3729{
3303 struct coro *current = SvSTATE (coro_current); 3730 struct coro *current = SvSTATE (coro_current);
3304 3731
3305 if (expect_false (current == self)) 3732 if (ecb_expect_false (current == self))
3306 { 3733 {
3307 coro_times_update (); 3734 coro_times_update ();
3308 coro_times_add (SvSTATE (coro_current)); 3735 coro_times_add (SvSTATE (coro_current));
3309 } 3736 }
3310 3737
3311 EXTEND (SP, 2); 3738 EXTEND (SP, 2);
3312 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3739 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3313 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3740 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3314 3741
3315 if (expect_false (current == self)) 3742 if (ecb_expect_false (current == self))
3316 coro_times_sub (SvSTATE (coro_current)); 3743 coro_times_sub (SvSTATE (coro_current));
3317} 3744}
3745
3746void
3747swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3748 CODE:
3749{
3750 struct coro *current = SvSTATE_current;
3751
3752 if (current == coro)
3753 SWAP_SVS (current);
3754
3755 if (!coro->swap_sv)
3756 coro->swap_sv = newAV ();
3757
3758 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3759 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3760
3761 if (current == coro)
3762 SWAP_SVS (current);
3763}
3764
3318 3765
3319MODULE = Coro::State PACKAGE = Coro 3766MODULE = Coro::State PACKAGE = Coro
3320 3767
3321BOOT: 3768BOOT:
3322{ 3769{
3323 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3770 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3324 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3771 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3325 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3772 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3326 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3327 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3773 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3328 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3774 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3329 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3775 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3330 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3776 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3331 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3777 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3332 3778
3333 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3779 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3334 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3780 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3335 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3781 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3336 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ 3782 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3337 3783
3338 coro_stash = gv_stashpv ("Coro", TRUE); 3784 coro_stash = gv_stashpv ("Coro", TRUE);
3339 3785
3340 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3786 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3341 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3787 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3342 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3788 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3365SV * 3811SV *
3366async (...) 3812async (...)
3367 PROTOTYPE: &@ 3813 PROTOTYPE: &@
3368 CODE: 3814 CODE:
3369 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); 3815 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3370 api_ready (RETVAL); 3816 api_ready (aTHX_ RETVAL);
3371 OUTPUT: 3817 OUTPUT:
3372 RETVAL 3818 RETVAL
3819
3820void
3821_destroy (Coro::State coro)
3822 CODE:
3823 /* used by the manager thread */
3824 coro_state_destroy (aTHX_ coro);
3825
3826void
3827on_destroy (Coro::State coro, SV *cb)
3828 CODE:
3829 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3830
3831void
3832join (...)
3833 CODE:
3834 CORO_EXECUTE_SLF_XS (slf_init_join);
3373 3835
3374void 3836void
3375terminate (...) 3837terminate (...)
3376 CODE: 3838 CODE:
3377 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3839 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3840
3841void
3842cancel (...)
3843 CODE:
3844 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3845
3846int
3847safe_cancel (Coro::State self, ...)
3848 C_ARGS: aTHX_ self, &ST (1), items - 1
3378 3849
3379void 3850void
3380schedule (...) 3851schedule (...)
3381 CODE: 3852 CODE:
3382 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3853 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3539 on_leave = 1 4010 on_leave = 1
3540 PROTOTYPE: & 4011 PROTOTYPE: &
3541 CODE: 4012 CODE:
3542{ 4013{
3543 struct coro *coro = SvSTATE_current; 4014 struct coro *coro = SvSTATE_current;
3544 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4015 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3545 4016
3546 block = s_get_cv_croak (block); 4017 block = s_get_cv_croak (block);
3547 4018
3548 if (!*avp) 4019 if (!*avp)
3549 *avp = newAV (); 4020 *avp = newAV ();
… …
3569 4040
3570SV * 4041SV *
3571new (SV *klass, SV *count = 0) 4042new (SV *klass, SV *count = 0)
3572 CODE: 4043 CODE:
3573{ 4044{
3574 int semcnt = 1; 4045 int semcnt = 1;
3575 4046
3576 if (count) 4047 if (count)
3577 { 4048 {
3578 SvGETMAGIC (count); 4049 SvGETMAGIC (count);
3579 4050
… …
3639 XSRETURN_NO; 4110 XSRETURN_NO;
3640} 4111}
3641 4112
3642void 4113void
3643waiters (SV *self) 4114waiters (SV *self)
3644 PPCODE: 4115 PPCODE:
3645{ 4116{
3646 AV *av = (AV *)SvRV (self); 4117 AV *av = (AV *)SvRV (self);
3647 int wcount = AvFILLp (av) + 1 - 1; 4118 int wcount = AvFILLp (av) + 1 - 1;
3648 4119
3649 if (GIMME_V == G_SCALAR) 4120 if (GIMME_V == G_SCALAR)
… …
3658} 4129}
3659 4130
3660MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4131MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3661 4132
3662void 4133void
3663_may_delete (SV *sem, int count, int extra_refs) 4134_may_delete (SV *sem, int count, unsigned int extra_refs)
3664 PPCODE: 4135 PPCODE:
3665{ 4136{
3666 AV *av = (AV *)SvRV (sem); 4137 AV *av = (AV *)SvRV (sem);
3667 4138
3668 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4139 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3669 && AvFILLp (av) == 0 /* no waiters, just count */ 4140 && AvFILLp (av) == 0 /* no waiters, just count */
3670 && SvIV (AvARRAY (av)[0]) == count) 4141 && SvIV (AvARRAY (av)[0]) == count)
3671 XSRETURN_YES; 4142 XSRETURN_YES;
… …
3692 4163
3693void 4164void
3694broadcast (SV *self) 4165broadcast (SV *self)
3695 CODE: 4166 CODE:
3696{ 4167{
3697 AV *av = (AV *)SvRV (self); 4168 AV *av = (AV *)SvRV (self);
3698 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4169 coro_signal_wake (aTHX_ av, AvFILLp (av));
3699} 4170}
3700 4171
3701void 4172void
3702send (SV *self) 4173send (SV *self)
… …
3710 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4181 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3711} 4182}
3712 4183
3713IV 4184IV
3714awaited (SV *self) 4185awaited (SV *self)
3715 CODE: 4186 CODE:
3716 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4187 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3717 OUTPUT: 4188 OUTPUT:
3718 RETVAL 4189 RETVAL
3719 4190
3720 4191
… …
3725 4196
3726void 4197void
3727_schedule (...) 4198_schedule (...)
3728 CODE: 4199 CODE:
3729{ 4200{
3730 static int incede; 4201 static int incede;
3731 4202
3732 api_cede_notself (aTHX); 4203 api_cede_notself (aTHX);
3733 4204
3734 ++incede; 4205 ++incede;
3735 while (coro_nready >= incede && api_cede (aTHX)) 4206 while (coro_nready >= incede && api_cede (aTHX))
… …
3779 { 4250 {
3780 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4251 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3781 coro_old_pp_sselect = 0; 4252 coro_old_pp_sselect = 0;
3782 } 4253 }
3783 4254
4255MODULE = Coro::State PACKAGE = Coro::Util
3784 4256
4257void
4258_exit (int code)
4259 CODE:
4260 _exit (code);
4261
4262NV
4263time ()
4264 CODE:
4265 RETVAL = nvtime (aTHX);
4266 OUTPUT:
4267 RETVAL
4268
4269NV
4270gettimeofday ()
4271 PPCODE:
4272{
4273 UV tv [2];
4274 u2time (aTHX_ tv);
4275 EXTEND (SP, 2);
4276 PUSHs (sv_2mortal (newSVuv (tv [0])));
4277 PUSHs (sv_2mortal (newSVuv (tv [1])));
4278}
4279

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