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Comparing Coro/Coro/State.xs (file contents):
Revision 1.368 by root, Thu Aug 13 02:35:41 2009 UTC vs.
Revision 1.447 by root, Tue Oct 14 21:53:32 2014 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
… …
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "schmorp.h" 16#include "schmorp.h"
12 17
18#define ECB_NO_THREADS 1
19#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
13#include <stdio.h> 23#include <stdio.h>
14#include <errno.h> 24#include <errno.h>
15#include <assert.h> 25#include <assert.h>
16 26
17#ifdef WIN32 27#ifndef SVs_PADSTALE
28# define SVs_PADSTALE 0
29#endif
30
31#ifdef PadARRAY
32# define NEWPADAPI 1
33# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
34#else
35typedef AV PADNAMELIST;
36# if !PERL_VERSION_ATLEAST(5,8,0)
37typedef AV PADLIST;
38typedef AV PAD;
39# endif
40# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
41# define PadlistMAX(pl) AvFILLp (pl)
42# define PadlistNAMES(pl) (*PadlistARRAY (pl))
43# define PadARRAY AvARRAY
44# define PadMAX AvFILLp
45# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
46#endif
47
48/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
49/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
50#if PERL_VERSION_ATLEAST(5,19,0)
51# define SVt_BIND SVt_IV
52#endif
53
54#if defined(_WIN32)
55# undef HAS_GETTIMEOFDAY
18# undef setjmp 56# undef setjmp
19# undef longjmp 57# undef longjmp
20# undef _exit 58# undef _exit
21# define setjmp _setjmp /* deep magic */ 59# define setjmp _setjmp /* deep magic */
22#else 60#else
23# include <inttypes.h> /* most portable stdint.h */ 61# include <inttypes.h> /* most portable stdint.h */
24#endif 62#endif
25 63
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 */ 64/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 65static int cctx_max_idle = 4;
55 66
56#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 67#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57# undef CORO_STACKGUARD 68# define HAS_SCOPESTACK_NAME 1
58#endif
59
60#ifndef CORO_STACKGUARD
61# define CORO_STACKGUARD 0
62#endif 69#endif
63 70
64/* prefer perl internal functions over our own? */ 71/* prefer perl internal functions over our own? */
65#ifndef CORO_PREFER_PERL_FUNCTIONS 72#ifndef CORO_PREFER_PERL_FUNCTIONS
66# define CORO_PREFER_PERL_FUNCTIONS 0 73# define CORO_PREFER_PERL_FUNCTIONS 0
… …
76# define STACKLEVEL ((void *)&stacklevel) 83# define STACKLEVEL ((void *)&stacklevel)
77#endif 84#endif
78 85
79#define IN_DESTRUCT PL_dirty 86#define IN_DESTRUCT PL_dirty
80 87
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" 88#include "CoroAPI.h"
97#define GCoroAPI (&coroapi) /* very sneaky */ 89#define GCoroAPI (&coroapi) /* very sneaky */
98 90
99#ifdef USE_ITHREADS 91#ifdef USE_ITHREADS
100# if CORO_PTHREAD 92# if CORO_PTHREAD
… …
116static void (*u2time)(pTHX_ UV ret[2]); 108static void (*u2time)(pTHX_ UV ret[2]);
117 109
118/* we hijack an hopefully unused CV flag for our purposes */ 110/* we hijack an hopefully unused CV flag for our purposes */
119#define CVf_SLF 0x4000 111#define CVf_SLF 0x4000
120static OP *pp_slf (pTHX); 112static OP *pp_slf (pTHX);
113static void slf_destroy (pTHX_ struct coro *coro);
121 114
122static U32 cctx_gen; 115static U32 cctx_gen;
123static size_t cctx_stacksize = CORO_STACKSIZE; 116static size_t cctx_stacksize = CORO_STACKSIZE;
124static struct CoroAPI coroapi; 117static struct CoroAPI coroapi;
125static AV *main_mainstack; /* used to differentiate between $main and others */ 118static AV *main_mainstack; /* used to differentiate between $main and others */
… …
142static SV *sv_pool_size; 135static SV *sv_pool_size;
143static SV *sv_async_pool_idle; /* description string */ 136static SV *sv_async_pool_idle; /* description string */
144static AV *av_async_pool; /* idle pool */ 137static AV *av_async_pool; /* idle pool */
145static SV *sv_Coro; /* class string */ 138static SV *sv_Coro; /* class string */
146static CV *cv_pool_handler; 139static CV *cv_pool_handler;
147static CV *cv_coro_state_new;
148 140
149/* Coro::AnyEvent */ 141/* Coro::AnyEvent */
150static SV *sv_activity; 142static SV *sv_activity;
151 143
152/* enable processtime/realtime profiling */ 144/* enable processtime/realtime profiling */
… …
156static char times_valid; 148static char times_valid;
157 149
158static struct coro_cctx *cctx_first; 150static struct coro_cctx *cctx_first;
159static int cctx_count, cctx_idle; 151static int cctx_count, cctx_idle;
160 152
161enum { 153enum
154{
162 CC_MAPPED = 0x01, 155 CC_MAPPED = 0x01,
163 CC_NOREUSE = 0x02, /* throw this away after tracing */ 156 CC_NOREUSE = 0x02, /* throw this away after tracing */
164 CC_TRACE = 0x04, 157 CC_TRACE = 0x04,
165 CC_TRACE_SUB = 0x08, /* trace sub calls */ 158 CC_TRACE_SUB = 0x08, /* trace sub calls */
166 CC_TRACE_LINE = 0x10, /* trace each statement */ 159 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
171typedef struct coro_cctx 164typedef struct coro_cctx
172{ 165{
173 struct coro_cctx *next; 166 struct coro_cctx *next;
174 167
175 /* the stack */ 168 /* the stack */
176 void *sptr; 169 struct coro_stack stack;
177 size_t ssize;
178 170
179 /* cpu state */ 171 /* cpu state */
180 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 172 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
173#ifndef NDEBUG
181 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 174 JMPENV *idle_te; /* same as idle_sp, but for top_env */
175#endif
182 JMPENV *top_env; 176 JMPENV *top_env;
183 coro_context cctx; 177 coro_context cctx;
184 178
185 U32 gen; 179 U32 gen;
186#if CORO_USE_VALGRIND 180#if CORO_USE_VALGRIND
187 int valgrind_id; 181 int valgrind_id;
188#endif 182#endif
189 unsigned char flags; 183 unsigned char flags;
190} coro_cctx; 184} coro_cctx;
191 185
192coro_cctx *cctx_current; /* the currently running cctx */ 186static coro_cctx *cctx_current; /* the currently running cctx */
193 187
194/*****************************************************************************/ 188/*****************************************************************************/
195 189
190static MGVTBL coro_state_vtbl;
191
196enum { 192enum
193{
197 CF_RUNNING = 0x0001, /* coroutine is running */ 194 CF_RUNNING = 0x0001, /* coroutine is running */
198 CF_READY = 0x0002, /* coroutine is ready */ 195 CF_READY = 0x0002, /* coroutine is ready */
199 CF_NEW = 0x0004, /* has never been switched to */ 196 CF_NEW = 0x0004, /* has never been switched to */
200 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 197 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
201 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 198 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
199 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
202}; 200};
203 201
204/* the structure where most of the perl state is stored, overlaid on the cxstack */ 202/* the structure where most of the perl state is stored, overlaid on the cxstack */
205typedef struct 203typedef struct
206{ 204{
207 SV *defsv;
208 AV *defav;
209 SV *errsv;
210 SV *irsgv;
211 HV *hinthv;
212#define VAR(name,type) type name; 205 #define VARx(name,expr,type) type name;
213# include "state.h" 206 #include "state.h"
214#undef VAR
215} perl_slots; 207} perl_slots;
216 208
209/* how many context stack entries do we need for perl_slots */
217#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 210#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
218 211
219/* this is a structure representing a perl-level coroutine */ 212/* this is a structure representing a perl-level coroutine */
220struct coro { 213struct coro
214{
221 /* the C coroutine allocated to this perl coroutine, if any */ 215 /* the C coroutine allocated to this perl coroutine, if any */
222 coro_cctx *cctx; 216 coro_cctx *cctx;
223 217
224 /* ready queue */ 218 /* ready queue */
225 struct coro *next_ready; 219 struct coro *next_ready;
… …
227 /* state data */ 221 /* state data */
228 struct CoroSLF slf_frame; /* saved slf frame */ 222 struct CoroSLF slf_frame; /* saved slf frame */
229 AV *mainstack; 223 AV *mainstack;
230 perl_slots *slot; /* basically the saved sp */ 224 perl_slots *slot; /* basically the saved sp */
231 225
232 CV *startcv; /* the CV to execute */ 226 CV *startcv; /* the CV to execute */
233 AV *args; /* data associated with this coroutine (initial args) */ 227 AV *args; /* data associated with this coroutine (initial args) */
234 int refcnt; /* coroutines are refcounted, yes */
235 int flags; /* CF_ flags */ 228 int flags; /* CF_ flags */
236 HV *hv; /* the perl hash associated with this coro, if any */ 229 HV *hv; /* the perl hash associated with this coro, if any */
237 void (*on_destroy)(pTHX_ struct coro *coro);
238 230
239 /* statistics */ 231 /* statistics */
240 int usecount; /* number of transfers to this coro */ 232 int usecount; /* number of transfers to this coro */
241 233
242 /* coro process data */ 234 /* coro process data */
243 int prio; 235 int prio;
244 SV *except; /* exception to be thrown */ 236 SV *except; /* exception to be thrown */
245 SV *rouse_cb; 237 SV *rouse_cb; /* last rouse callback */
238 AV *on_destroy; /* callbacks or coros to notify on destroy */
239 AV *status; /* the exit status list */
246 240
247 /* async_pool */ 241 /* async_pool */
248 SV *saved_deffh; 242 SV *saved_deffh;
249 SV *invoke_cb; 243 SV *invoke_cb;
250 AV *invoke_av; 244 AV *invoke_av;
251 245
252 /* on_enter/on_leave */ 246 /* on_enter/on_leave */
253 AV *on_enter; 247 AV *on_enter;
254 AV *on_leave; 248 AV *on_leave;
255 249
250 /* swap_sv */
251 AV *swap_sv;
252
256 /* times */ 253 /* times */
257 coro_ts t_cpu, t_real; 254 coro_ts t_cpu, t_real;
258 255
259 /* linked list */ 256 /* linked list */
260 struct coro *next, *prev; 257 struct coro *next, *prev;
… …
263typedef struct coro *Coro__State; 260typedef struct coro *Coro__State;
264typedef struct coro *Coro__State_or_hashref; 261typedef struct coro *Coro__State_or_hashref;
265 262
266/* the following variables are effectively part of the perl context */ 263/* the following variables are effectively part of the perl context */
267/* and get copied between struct coro and these variables */ 264/* and get copied between struct coro and these variables */
268/* the mainr easonw e don't support windows process emulation */ 265/* the main reason we don't support windows process emulation */
269static struct CoroSLF slf_frame; /* the current slf frame */ 266static struct CoroSLF slf_frame; /* the current slf frame */
270 267
271/** Coro ********************************************************************/ 268/** Coro ********************************************************************/
272 269
273#define CORO_PRIO_MAX 3 270#define CORO_PRIO_MAX 3
… …
279 276
280/* for Coro.pm */ 277/* for Coro.pm */
281static SV *coro_current; 278static SV *coro_current;
282static SV *coro_readyhook; 279static SV *coro_readyhook;
283static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 280static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
284static CV *cv_coro_run, *cv_coro_terminate; 281static CV *cv_coro_run;
285static struct coro *coro_first; 282static struct coro *coro_first;
286#define coro_nready coroapi.nready 283#define coro_nready coroapi.nready
287 284
285/** JIT *********************************************************************/
286
287#if CORO_JIT
288 /* APPLE doesn't have mmap though */
289 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
290 #ifndef CORO_JIT_TYPE
291 #if ECB_AMD64 && CORO_JIT_UNIXY
292 #define CORO_JIT_TYPE "amd64-unix"
293 #elif __i386 && CORO_JIT_UNIXY
294 #define CORO_JIT_TYPE "x86-unix"
295 #endif
296 #endif
297#endif
298
299#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
300 #undef CORO_JIT
301#endif
302
303#if CORO_JIT
304 typedef void (*load_save_perl_slots_type)(perl_slots *);
305 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
306#endif
307
288/** Coro::Select ************************************************************/ 308/** Coro::Select ************************************************************/
289 309
290static OP *(*coro_old_pp_sselect) (pTHX); 310static OP *(*coro_old_pp_sselect) (pTHX);
291static SV *coro_select_select; 311static SV *coro_select_select;
292 312
293/* horrible hack, but if it works... */ 313/* horrible hack, but if it works... */
294static OP * 314static OP *
295coro_pp_sselect (aTHX) 315coro_pp_sselect (pTHX)
296{ 316{
297 dSP; 317 dSP;
298 PUSHMARK (SP - 4); /* fake argument list */ 318 PUSHMARK (SP - 4); /* fake argument list */
299 XPUSHs (coro_select_select); 319 XPUSHs (coro_select_select);
300 PUTBACK; 320 PUTBACK;
… …
303 PL_op->op_flags |= OPf_STACKED; 323 PL_op->op_flags |= OPf_STACKED;
304 PL_op->op_private = 0; 324 PL_op->op_private = 0;
305 return PL_ppaddr [OP_ENTERSUB](aTHX); 325 return PL_ppaddr [OP_ENTERSUB](aTHX);
306} 326}
307 327
328/** time stuff **************************************************************/
329
330#ifdef HAS_GETTIMEOFDAY
331
332ecb_inline void
333coro_u2time (pTHX_ UV ret[2])
334{
335 struct timeval tv;
336 gettimeofday (&tv, 0);
337
338 ret [0] = tv.tv_sec;
339 ret [1] = tv.tv_usec;
340}
341
342ecb_inline double
343coro_nvtime (void)
344{
345 struct timeval tv;
346 gettimeofday (&tv, 0);
347
348 return tv.tv_sec + tv.tv_usec * 1e-6;
349}
350
351ecb_inline void
352time_init (pTHX)
353{
354 nvtime = coro_nvtime;
355 u2time = coro_u2time;
356}
357
358#else
359
360ecb_inline void
361time_init (pTHX)
362{
363 SV **svp;
364
365 require_pv ("Time/HiRes.pm");
366
367 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
368
369 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
370 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
371
372 nvtime = INT2PTR (double (*)(), SvIV (*svp));
373
374 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
375 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
376}
377
378#endif
379
308/** lowlevel stuff **********************************************************/ 380/** lowlevel stuff **********************************************************/
309 381
310static SV * 382static SV * ecb_noinline
311coro_get_sv (pTHX_ const char *name, int create) 383coro_get_sv (pTHX_ const char *name, int create)
312{ 384{
313#if PERL_VERSION_ATLEAST (5,10,0) 385#if PERL_VERSION_ATLEAST (5,10,0)
314 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 386 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
315 get_sv (name, create); 387 get_sv (name, create);
316#endif 388#endif
317 return get_sv (name, create); 389 return get_sv (name, create);
318} 390}
319 391
320static AV * 392static AV * ecb_noinline
321coro_get_av (pTHX_ const char *name, int create) 393coro_get_av (pTHX_ const char *name, int create)
322{ 394{
323#if PERL_VERSION_ATLEAST (5,10,0) 395#if PERL_VERSION_ATLEAST (5,10,0)
324 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 396 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
325 get_av (name, create); 397 get_av (name, create);
326#endif 398#endif
327 return get_av (name, create); 399 return get_av (name, create);
328} 400}
329 401
330static HV * 402static HV * ecb_noinline
331coro_get_hv (pTHX_ const char *name, int create) 403coro_get_hv (pTHX_ const char *name, int create)
332{ 404{
333#if PERL_VERSION_ATLEAST (5,10,0) 405#if PERL_VERSION_ATLEAST (5,10,0)
334 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 406 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
335 get_hv (name, create); 407 get_hv (name, create);
336#endif 408#endif
337 return get_hv (name, create); 409 return get_hv (name, create);
338} 410}
339 411
340INLINE void 412ecb_inline void
341coro_times_update () 413coro_times_update (void)
342{ 414{
343#ifdef coro_clock_gettime 415#ifdef coro_clock_gettime
344 struct timespec ts; 416 struct timespec ts;
345 417
346 ts.tv_sec = ts.tv_nsec = 0; 418 ts.tv_sec = ts.tv_nsec = 0;
… …
358 time_real [0] = tv [0]; 430 time_real [0] = tv [0];
359 time_real [1] = tv [1] * 1000; 431 time_real [1] = tv [1] * 1000;
360#endif 432#endif
361} 433}
362 434
363INLINE void 435ecb_inline void
364coro_times_add (struct coro *c) 436coro_times_add (struct coro *c)
365{ 437{
366 c->t_real [1] += time_real [1]; 438 c->t_real [1] += time_real [1];
367 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 439 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
368 c->t_real [0] += time_real [0]; 440 c->t_real [0] += time_real [0];
… …
370 c->t_cpu [1] += time_cpu [1]; 442 c->t_cpu [1] += time_cpu [1];
371 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 443 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
372 c->t_cpu [0] += time_cpu [0]; 444 c->t_cpu [0] += time_cpu [0];
373} 445}
374 446
375INLINE void 447ecb_inline void
376coro_times_sub (struct coro *c) 448coro_times_sub (struct coro *c)
377{ 449{
378 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 450 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
379 c->t_real [1] -= time_real [1]; 451 c->t_real [1] -= time_real [1];
380 c->t_real [0] -= time_real [0]; 452 c->t_real [0] -= time_real [0];
… …
388/* magic glue */ 460/* magic glue */
389 461
390#define CORO_MAGIC_type_cv 26 462#define CORO_MAGIC_type_cv 26
391#define CORO_MAGIC_type_state PERL_MAGIC_ext 463#define CORO_MAGIC_type_state PERL_MAGIC_ext
392 464
393#define CORO_MAGIC_NN(sv, type) \ 465#define CORO_MAGIC_NN(sv, type) \
394 (expect_true (SvMAGIC (sv)->mg_type == type) \ 466 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
395 ? SvMAGIC (sv) \ 467 ? SvMAGIC (sv) \
396 : mg_find (sv, type)) 468 : mg_find (sv, type))
397 469
398#define CORO_MAGIC(sv, type) \ 470#define CORO_MAGIC(sv, type) \
399 (expect_true (SvMAGIC (sv)) \ 471 (ecb_expect_true (SvMAGIC (sv)) \
400 ? CORO_MAGIC_NN (sv, type) \ 472 ? CORO_MAGIC_NN (sv, type) \
401 : 0) 473 : 0)
402 474
403#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 475#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
404#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 476#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
405 477
406INLINE struct coro * 478ecb_inline MAGIC *
479SvSTATEhv_p (pTHX_ SV *coro)
480{
481 MAGIC *mg;
482
483 if (ecb_expect_true (
484 SvTYPE (coro) == SVt_PVHV
485 && (mg = CORO_MAGIC_state (coro))
486 && mg->mg_virtual == &coro_state_vtbl
487 ))
488 return mg;
489
490 return 0;
491}
492
493ecb_inline struct coro *
407SvSTATE_ (pTHX_ SV *coro) 494SvSTATE_ (pTHX_ SV *coro)
408{ 495{
409 HV *stash;
410 MAGIC *mg; 496 MAGIC *mg;
411 497
412 if (SvROK (coro)) 498 if (SvROK (coro))
413 coro = SvRV (coro); 499 coro = SvRV (coro);
414 500
415 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 501 mg = SvSTATEhv_p (aTHX_ coro);
502 if (!mg)
416 croak ("Coro::State object required"); 503 croak ("Coro::State object required");
417 504
418 stash = SvSTASH (coro);
419 if (expect_false (stash != coro_stash && stash != coro_state_stash))
420 {
421 /* very slow, but rare, check */
422 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
423 croak ("Coro::State object required");
424 }
425
426 mg = CORO_MAGIC_state (coro);
427 return (struct coro *)mg->mg_ptr; 505 return (struct coro *)mg->mg_ptr;
428} 506}
429 507
430#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 508#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
431 509
… …
434#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 512#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
435 513
436/*****************************************************************************/ 514/*****************************************************************************/
437/* padlist management and caching */ 515/* padlist management and caching */
438 516
439static AV * 517ecb_inline PADLIST *
440coro_derive_padlist (pTHX_ CV *cv) 518coro_derive_padlist (pTHX_ CV *cv)
441{ 519{
442 AV *padlist = CvPADLIST (cv); 520 PADLIST *padlist = CvPADLIST (cv);
443 AV *newpadlist, *newpad; 521 PADLIST *newpadlist;
522 PAD *newpad;
523 PADOFFSET off = PadlistMAX (padlist) + 1;
444 524
445 newpadlist = newAV (); 525#if NEWPADAPI
526
527 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
528 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
529 while (!PadlistARRAY (padlist)[off - 1])
530 --off;
531
532 Perl_pad_push (aTHX_ padlist, off);
533
534 newpad = PadlistARRAY (padlist)[off];
535 PadlistARRAY (padlist)[off] = 0;
536
537#else
538
539#if PERL_VERSION_ATLEAST (5,10,0)
540 Perl_pad_push (aTHX_ padlist, off);
541#else
542 Perl_pad_push (aTHX_ padlist, off, 1);
543#endif
544
545 newpad = PadlistARRAY (padlist)[off];
546 PadlistMAX (padlist) = off - 1;
547
548#endif
549
550 newPADLIST (newpadlist);
551#if !PERL_VERSION_ATLEAST(5,15,3)
552 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
446 AvREAL_off (newpadlist); 553 AvREAL_off (newpadlist);
447#if PERL_VERSION_ATLEAST (5,10,0)
448 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
449#else
450 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
451#endif 554#endif
452 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
453 --AvFILLp (padlist);
454 555
455 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 556 /* Already extended to 2 elements by newPADLIST. */
456 av_store (newpadlist, 1, (SV *)newpad); 557 PadlistMAX (newpadlist) = 1;
558 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
559 PadlistARRAY (newpadlist)[1] = newpad;
457 560
458 return newpadlist; 561 return newpadlist;
459} 562}
460 563
461static void 564ecb_inline void
462free_padlist (pTHX_ AV *padlist) 565free_padlist (pTHX_ PADLIST *padlist)
463{ 566{
464 /* may be during global destruction */ 567 /* may be during global destruction */
465 if (!IN_DESTRUCT) 568 if (!IN_DESTRUCT)
466 { 569 {
467 I32 i = AvFILLp (padlist); 570 I32 i = PadlistMAX (padlist);
468 571
469 while (i > 0) /* special-case index 0 */ 572 while (i > 0) /* special-case index 0 */
470 { 573 {
471 /* we try to be extra-careful here */ 574 /* we try to be extra-careful here */
472 AV *av = (AV *)AvARRAY (padlist)[i--]; 575 PAD *pad = PadlistARRAY (padlist)[i--];
473 I32 j = AvFILLp (av);
474 576
577 if (pad)
578 {
579 I32 j = PadMAX (pad);
580
475 while (j >= 0) 581 while (j >= 0)
476 SvREFCNT_dec (AvARRAY (av)[j--]); 582 SvREFCNT_dec (PadARRAY (pad)[j--]);
477 583
478 AvFILLp (av) = -1; 584 PadMAX (pad) = -1;
479 SvREFCNT_dec (av); 585 SvREFCNT_dec (pad);
586 }
480 } 587 }
481 588
482 SvREFCNT_dec (AvARRAY (padlist)[0]); 589 SvREFCNT_dec (PadlistNAMES (padlist));
483 590
591#if NEWPADAPI
592 Safefree (PadlistARRAY (padlist));
593 Safefree (padlist);
594#else
484 AvFILLp (padlist) = -1; 595 AvFILLp (padlist) = -1;
596 AvREAL_off (padlist);
485 SvREFCNT_dec ((SV*)padlist); 597 SvREFCNT_dec ((SV*)padlist);
598#endif
486 } 599 }
487} 600}
488 601
489static int 602static int
490coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 603coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
491{ 604{
492 AV *padlist; 605 PADLIST *padlist;
493 AV *av = (AV *)mg->mg_obj; 606 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
607 size_t len = *(size_t *)mg->mg_ptr;
494 608
495 /* perl manages to free our internal AV and _then_ call us */ 609 /* perl manages to free our internal AV and _then_ call us */
496 if (IN_DESTRUCT) 610 if (IN_DESTRUCT)
497 return 0; 611 return 0;
498 612
499 /* casting is fun. */ 613 while (len--)
500 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
501 free_padlist (aTHX_ padlist); 614 free_padlist (aTHX_ padlists[len]);
502
503 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
504 615
505 return 0; 616 return 0;
506} 617}
507 618
508static MGVTBL coro_cv_vtbl = { 619static MGVTBL coro_cv_vtbl = {
509 0, 0, 0, 0, 620 0, 0, 0, 0,
510 coro_cv_free 621 coro_cv_free
511}; 622};
512 623
513/* the next two functions merely cache the padlists */ 624/* the next two functions merely cache the padlists */
514static void 625ecb_inline void
515get_padlist (pTHX_ CV *cv) 626get_padlist (pTHX_ CV *cv)
516{ 627{
517 MAGIC *mg = CORO_MAGIC_cv (cv); 628 MAGIC *mg = CORO_MAGIC_cv (cv);
518 AV *av; 629 size_t *lenp;
519 630
520 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 631 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
521 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 632 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
522 else 633 else
523 { 634 {
524#if CORO_PREFER_PERL_FUNCTIONS 635#if CORO_PREFER_PERL_FUNCTIONS
525 /* this is probably cleaner? but also slower! */ 636 /* this is probably cleaner? but also slower! */
526 /* in practise, it seems to be less stable */ 637 /* in practise, it seems to be less stable */
… …
532 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 643 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
533#endif 644#endif
534 } 645 }
535} 646}
536 647
537static void 648ecb_inline void
538put_padlist (pTHX_ CV *cv) 649put_padlist (pTHX_ CV *cv)
539{ 650{
540 MAGIC *mg = CORO_MAGIC_cv (cv); 651 MAGIC *mg = CORO_MAGIC_cv (cv);
541 AV *av;
542 652
543 if (expect_false (!mg)) 653 if (ecb_expect_false (!mg))
654 {
544 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 655 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
656 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
657 mg->mg_len = 1; /* so mg_free frees mg_ptr */
658 }
659 else
660 Renew (mg->mg_ptr,
661 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
662 char);
545 663
546 av = (AV *)mg->mg_obj; 664 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
547
548 if (expect_false (AvFILLp (av) >= AvMAX (av)))
549 av_extend (av, AvFILLp (av) + 1);
550
551 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
552} 665}
553 666
554/** load & save, init *******************************************************/ 667/** load & save, init *******************************************************/
668
669ecb_inline void
670swap_sv (SV *a, SV *b)
671{
672 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
673 SV tmp;
674
675 /* swap sv_any */
676 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
677
678 /* swap sv_flags */
679 SvFLAGS (&tmp) = SvFLAGS (a);
680 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
681 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
682
683#if PERL_VERSION_ATLEAST (5,10,0)
684 /* perl 5.10 and later complicates this _quite_ a bit, but it also
685 * is much faster, so no quarrels here. alternatively, we could
686 * sv_upgrade to avoid this.
687 */
688 {
689 /* swap sv_u */
690 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
691
692 /* if SvANY points to the head, we need to adjust the pointers,
693 * as the pointer for a still points to b, and maybe vice versa.
694 */
695 #define svany_in_head(type) \
696 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
697
698 if (svany_in_head (SvTYPE (a)))
699 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
700
701 if (svany_in_head (SvTYPE (b)))
702 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
703 }
704#endif
705}
706
707/* swap sv heads, at least logically */
708static void
709swap_svs (pTHX_ Coro__State c)
710{
711 int i;
712
713 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
714 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
715}
716
717#define SWAP_SVS(coro) \
718 if (ecb_expect_false ((coro)->swap_sv)) \
719 swap_svs (aTHX_ (coro))
555 720
556static void 721static void
557on_enterleave_call (pTHX_ SV *cb); 722on_enterleave_call (pTHX_ SV *cb);
558 723
559static void 724static void
… …
562 perl_slots *slot = c->slot; 727 perl_slots *slot = c->slot;
563 c->slot = 0; 728 c->slot = 0;
564 729
565 PL_mainstack = c->mainstack; 730 PL_mainstack = c->mainstack;
566 731
567 GvSV (PL_defgv) = slot->defsv; 732#if CORO_JIT
568 GvAV (PL_defgv) = slot->defav; 733 load_perl_slots (slot);
569 GvSV (PL_errgv) = slot->errsv; 734#else
570 GvSV (irsgv) = slot->irsgv;
571 GvHV (PL_hintgv) = slot->hinthv;
572
573 #define VAR(name,type) PL_ ## name = slot->name; 735 #define VARx(name,expr,type) expr = slot->name;
574 # include "state.h" 736 #include "state.h"
575 #undef VAR 737#endif
576 738
577 { 739 {
578 dSP; 740 dSP;
579 741
580 CV *cv; 742 CV *cv;
581 743
582 /* now do the ugly restore mess */ 744 /* now do the ugly restore mess */
583 while (expect_true (cv = (CV *)POPs)) 745 while (ecb_expect_true (cv = (CV *)POPs))
584 { 746 {
585 put_padlist (aTHX_ cv); /* mark this padlist as available */ 747 put_padlist (aTHX_ cv); /* mark this padlist as available */
586 CvDEPTH (cv) = PTR2IV (POPs); 748 CvDEPTH (cv) = PTR2IV (POPs);
587 CvPADLIST (cv) = (AV *)POPs; 749 CvPADLIST (cv) = (PADLIST *)POPs;
588 } 750 }
589 751
590 PUTBACK; 752 PUTBACK;
591 } 753 }
592 754
593 slf_frame = c->slf_frame; 755 slf_frame = c->slf_frame;
594 CORO_THROW = c->except; 756 CORO_THROW = c->except;
595 757
596 if (expect_false (enable_times)) 758 if (ecb_expect_false (enable_times))
597 { 759 {
598 if (expect_false (!times_valid)) 760 if (ecb_expect_false (!times_valid))
599 coro_times_update (); 761 coro_times_update ();
600 762
601 coro_times_sub (c); 763 coro_times_sub (c);
602 } 764 }
603 765
604 if (expect_false (c->on_enter)) 766 if (ecb_expect_false (c->on_enter))
605 { 767 {
606 int i; 768 int i;
607 769
608 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 770 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
609 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 771 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
610 } 772 }
773
774 SWAP_SVS (c);
611} 775}
612 776
613static void 777static void
614save_perl (pTHX_ Coro__State c) 778save_perl (pTHX_ Coro__State c)
615{ 779{
780 SWAP_SVS (c);
781
616 if (expect_false (c->on_leave)) 782 if (ecb_expect_false (c->on_leave))
617 { 783 {
618 int i; 784 int i;
619 785
620 for (i = AvFILLp (c->on_leave); i >= 0; --i) 786 for (i = AvFILLp (c->on_leave); i >= 0; --i)
621 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 787 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
622 } 788 }
623 789
624 times_valid = 0; 790 times_valid = 0;
625 791
626 if (expect_false (enable_times)) 792 if (ecb_expect_false (enable_times))
627 { 793 {
628 coro_times_update (); times_valid = 1; 794 coro_times_update (); times_valid = 1;
629 coro_times_add (c); 795 coro_times_add (c);
630 } 796 }
631 797
… …
645 811
646 XPUSHs (Nullsv); 812 XPUSHs (Nullsv);
647 /* this loop was inspired by pp_caller */ 813 /* this loop was inspired by pp_caller */
648 for (;;) 814 for (;;)
649 { 815 {
650 while (expect_true (cxix >= 0)) 816 while (ecb_expect_true (cxix >= 0))
651 { 817 {
652 PERL_CONTEXT *cx = &ccstk[cxix--]; 818 PERL_CONTEXT *cx = &ccstk[cxix--];
653 819
654 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 820 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
655 { 821 {
656 CV *cv = cx->blk_sub.cv; 822 CV *cv = cx->blk_sub.cv;
657 823
658 if (expect_true (CvDEPTH (cv))) 824 if (ecb_expect_true (CvDEPTH (cv)))
659 { 825 {
660 EXTEND (SP, 3); 826 EXTEND (SP, 3);
661 PUSHs ((SV *)CvPADLIST (cv)); 827 PUSHs ((SV *)CvPADLIST (cv));
662 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 828 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
663 PUSHs ((SV *)cv); 829 PUSHs ((SV *)cv);
… …
666 get_padlist (aTHX_ cv); 832 get_padlist (aTHX_ cv);
667 } 833 }
668 } 834 }
669 } 835 }
670 836
671 if (expect_true (top_si->si_type == PERLSI_MAIN)) 837 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
672 break; 838 break;
673 839
674 top_si = top_si->si_prev; 840 top_si = top_si->si_prev;
675 ccstk = top_si->si_cxstack; 841 ccstk = top_si->si_cxstack;
676 cxix = top_si->si_cxix; 842 cxix = top_si->si_cxix;
… …
678 844
679 PUTBACK; 845 PUTBACK;
680 } 846 }
681 847
682 /* allocate some space on the context stack for our purposes */ 848 /* allocate some space on the context stack for our purposes */
683 /* we manually unroll here, as usually 2 slots is enough */ 849 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
684 if (SLOT_COUNT >= 1) CXINC;
685 if (SLOT_COUNT >= 2) CXINC;
686 if (SLOT_COUNT >= 3) CXINC;
687 { 850 {
688 unsigned int i; 851 unsigned int i;
852
689 for (i = 3; i < SLOT_COUNT; ++i) 853 for (i = 0; i < SLOT_COUNT; ++i)
690 CXINC; 854 CXINC;
691 } 855
692 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 856 cxstack_ix -= SLOT_COUNT; /* undo allocation */
857 }
693 858
694 c->mainstack = PL_mainstack; 859 c->mainstack = PL_mainstack;
695 860
696 { 861 {
697 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 862 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
698 863
699 slot->defav = GvAV (PL_defgv); 864#if CORO_JIT
700 slot->defsv = DEFSV; 865 save_perl_slots (slot);
701 slot->errsv = ERRSV; 866#else
702 slot->irsgv = GvSV (irsgv);
703 slot->hinthv = GvHV (PL_hintgv);
704
705 #define VAR(name,type) slot->name = PL_ ## name; 867 #define VARx(name,expr,type) slot->name = expr;
706 # include "state.h" 868 #include "state.h"
707 #undef VAR 869#endif
708 } 870 }
709} 871}
710 872
711/* 873/*
712 * allocate various perl stacks. This is almost an exact copy 874 * allocate various perl stacks. This is almost an exact copy
… …
718# define coro_init_stacks(thx) init_stacks () 880# define coro_init_stacks(thx) init_stacks ()
719#else 881#else
720static void 882static void
721coro_init_stacks (pTHX) 883coro_init_stacks (pTHX)
722{ 884{
723 PL_curstackinfo = new_stackinfo(32, 8); 885 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
724 PL_curstackinfo->si_type = PERLSI_MAIN; 886 PL_curstackinfo->si_type = PERLSI_MAIN;
725 PL_curstack = PL_curstackinfo->si_stack; 887 PL_curstack = PL_curstackinfo->si_stack;
726 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 888 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
727 889
728 PL_stack_base = AvARRAY(PL_curstack); 890 PL_stack_base = AvARRAY(PL_curstack);
… …
743#endif 905#endif
744 906
745 New(54,PL_scopestack,8,I32); 907 New(54,PL_scopestack,8,I32);
746 PL_scopestack_ix = 0; 908 PL_scopestack_ix = 0;
747 PL_scopestack_max = 8; 909 PL_scopestack_max = 8;
910#if HAS_SCOPESTACK_NAME
911 New(54,PL_scopestack_name,8,const char*);
912#endif
748 913
749 New(54,PL_savestack,24,ANY); 914 New(54,PL_savestack,24,ANY);
750 PL_savestack_ix = 0; 915 PL_savestack_ix = 0;
751 PL_savestack_max = 24; 916 PL_savestack_max = 24;
752 917
… …
780 } 945 }
781 946
782 Safefree (PL_tmps_stack); 947 Safefree (PL_tmps_stack);
783 Safefree (PL_markstack); 948 Safefree (PL_markstack);
784 Safefree (PL_scopestack); 949 Safefree (PL_scopestack);
950#if HAS_SCOPESTACK_NAME
951 Safefree (PL_scopestack_name);
952#endif
785 Safefree (PL_savestack); 953 Safefree (PL_savestack);
786#if !PERL_VERSION_ATLEAST (5,10,0) 954#if !PERL_VERSION_ATLEAST (5,10,0)
787 Safefree (PL_retstack); 955 Safefree (PL_retstack);
788#endif 956#endif
789} 957}
… …
835#endif 1003#endif
836 1004
837/* 1005/*
838 * This overrides the default magic get method of %SIG elements. 1006 * This overrides the default magic get method of %SIG elements.
839 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1007 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
840 * and instead of trying to save and restore the hash elements, we just provide 1008 * and instead of trying to save and restore the hash elements (extremely slow),
841 * readback here. 1009 * we just provide our own readback here.
842 */ 1010 */
843static int 1011static int ecb_cold
844coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1012coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
845{ 1013{
846 const char *s = MgPV_nolen_const (mg); 1014 const char *s = MgPV_nolen_const (mg);
847 1015
848 if (*s == '_') 1016 if (*s == '_')
849 { 1017 {
850 SV **svp = 0; 1018 SV **svp = 0;
851 1019
852 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1020 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
853 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1021 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
854 1022
855 if (svp) 1023 if (svp)
856 { 1024 {
857 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1025 SV *ssv;
1026
1027 if (!*svp)
1028 ssv = &PL_sv_undef;
1029 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1030 ssv = sv_2mortal (newRV_inc (*svp));
1031 else
1032 ssv = *svp;
1033
1034 sv_setsv (sv, ssv);
858 return 0; 1035 return 0;
859 } 1036 }
860 } 1037 }
861 1038
862 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1039 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
863} 1040}
864 1041
865static int 1042static int ecb_cold
866coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1043coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
867{ 1044{
868 const char *s = MgPV_nolen_const (mg); 1045 const char *s = MgPV_nolen_const (mg);
869 1046
870 if (*s == '_') 1047 if (*s == '_')
… …
884 } 1061 }
885 1062
886 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1063 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
887} 1064}
888 1065
889static int 1066static int ecb_cold
890coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1067coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
891{ 1068{
892 const char *s = MgPV_nolen_const (mg); 1069 const char *s = MgPV_nolen_const (mg);
893 1070
894 if (*s == '_') 1071 if (*s == '_')
… …
927slf_check_repeat (pTHX_ struct CoroSLF *frame) 1104slf_check_repeat (pTHX_ struct CoroSLF *frame)
928{ 1105{
929 return 1; 1106 return 1;
930} 1107}
931 1108
932static UNOP coro_setup_op; 1109static UNOP init_perl_op;
933 1110
934static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1111ecb_noinline static void /* noinline to keep it out of the transfer fast path */
935coro_setup (pTHX_ struct coro *coro) 1112init_perl (pTHX_ struct coro *coro)
936{ 1113{
937 /* 1114 /*
938 * emulate part of the perl startup here. 1115 * emulate part of the perl startup here.
939 */ 1116 */
940 coro_init_stacks (aTHX); 1117 coro_init_stacks (aTHX);
… …
947 PL_comppad_name_fill = 0; 1124 PL_comppad_name_fill = 0;
948 PL_comppad_name_floor = 0; 1125 PL_comppad_name_floor = 0;
949 PL_curpm = 0; 1126 PL_curpm = 0;
950 PL_curpad = 0; 1127 PL_curpad = 0;
951 PL_localizing = 0; 1128 PL_localizing = 0;
952 PL_dirty = 0;
953 PL_restartop = 0; 1129 PL_restartop = 0;
954#if PERL_VERSION_ATLEAST (5,10,0) 1130#if PERL_VERSION_ATLEAST (5,10,0)
955 PL_parser = 0; 1131 PL_parser = 0;
956#endif 1132#endif
957 PL_hints = 0; 1133 PL_hints = 0;
958 1134
959 /* recreate the die/warn hooks */ 1135 /* recreate the die/warn hooks */
960 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1136 PL_diehook = SvREFCNT_inc (rv_diehook);
961 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1137 PL_warnhook = SvREFCNT_inc (rv_warnhook);
962 1138
963 GvSV (PL_defgv) = newSV (0); 1139 GvSV (PL_defgv) = newSV (0);
964 GvAV (PL_defgv) = coro->args; coro->args = 0; 1140 GvAV (PL_defgv) = coro->args; coro->args = 0;
965 GvSV (PL_errgv) = newSV (0); 1141 GvSV (PL_errgv) = newSV (0);
966 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1142 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
967 GvHV (PL_hintgv) = 0; 1143 GvHV (PL_hintgv) = newHV ();
1144#if PERL_VERSION_ATLEAST (5,10,0)
1145 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1146#endif
968 PL_rs = newSVsv (GvSV (irsgv)); 1147 PL_rs = newSVsv (GvSV (irsgv));
969 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1148 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
970 1149
971 { 1150 {
972 dSP; 1151 dSP;
… …
987 /* this newly created coroutine might be run on an existing cctx which most 1166 /* this newly created coroutine might be run on an existing cctx which most
988 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1167 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
989 */ 1168 */
990 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1169 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
991 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1170 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1171 slf_frame.destroy = 0;
992 1172
993 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1173 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
994 coro_setup_op.op_next = PL_op; 1174 init_perl_op.op_next = PL_op;
995 coro_setup_op.op_type = OP_ENTERSUB; 1175 init_perl_op.op_type = OP_ENTERSUB;
996 coro_setup_op.op_ppaddr = pp_slf; 1176 init_perl_op.op_ppaddr = pp_slf;
997 /* no flags etc. required, as an init function won't be called */ 1177 /* no flags etc. required, as an init function won't be called */
998 1178
999 PL_op = (OP *)&coro_setup_op; 1179 PL_op = (OP *)&init_perl_op;
1000 1180
1001 /* copy throw, in case it was set before coro_setup */ 1181 /* copy throw, in case it was set before init_perl */
1002 CORO_THROW = coro->except; 1182 CORO_THROW = coro->except;
1003 1183
1184 SWAP_SVS (coro);
1185
1004 if (expect_false (enable_times)) 1186 if (ecb_expect_false (enable_times))
1005 { 1187 {
1006 coro_times_update (); 1188 coro_times_update ();
1007 coro_times_sub (coro); 1189 coro_times_sub (coro);
1008 } 1190 }
1009} 1191}
… …
1028 dounwind (-1); 1210 dounwind (-1);
1029 } 1211 }
1030} 1212}
1031 1213
1032static void 1214static void
1033coro_destruct_perl (pTHX_ struct coro *coro) 1215destroy_perl (pTHX_ struct coro *coro)
1034{ 1216{
1035 SV *svf [9]; 1217 SV *svf [9];
1036 1218
1037 { 1219 {
1220 SV *old_current = SvRV (coro_current);
1038 struct coro *current = SvSTATE_current; 1221 struct coro *current = SvSTATE (old_current);
1039 1222
1040 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1223 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1041 1224
1042 save_perl (aTHX_ current); 1225 save_perl (aTHX_ current);
1226
1227 /* this will cause transfer_check to croak on block*/
1228 SvRV_set (coro_current, (SV *)coro->hv);
1229
1043 load_perl (aTHX_ coro); 1230 load_perl (aTHX_ coro);
1044 1231
1045 coro_unwind_stacks (aTHX); 1232 coro_unwind_stacks (aTHX);
1233
1234 /* restore swapped sv's */
1235 SWAP_SVS (coro);
1236
1046 coro_destruct_stacks (aTHX); 1237 coro_destruct_stacks (aTHX);
1047 1238
1048 // now save some sv's to be free'd later 1239 /* now save some sv's to be free'd later */
1049 svf [0] = GvSV (PL_defgv); 1240 svf [0] = GvSV (PL_defgv);
1050 svf [1] = (SV *)GvAV (PL_defgv); 1241 svf [1] = (SV *)GvAV (PL_defgv);
1051 svf [2] = GvSV (PL_errgv); 1242 svf [2] = GvSV (PL_errgv);
1052 svf [3] = (SV *)PL_defoutgv; 1243 svf [3] = (SV *)PL_defoutgv;
1053 svf [4] = PL_rs; 1244 svf [4] = PL_rs;
… …
1055 svf [6] = (SV *)GvHV (PL_hintgv); 1246 svf [6] = (SV *)GvHV (PL_hintgv);
1056 svf [7] = PL_diehook; 1247 svf [7] = PL_diehook;
1057 svf [8] = PL_warnhook; 1248 svf [8] = PL_warnhook;
1058 assert (9 == sizeof (svf) / sizeof (*svf)); 1249 assert (9 == sizeof (svf) / sizeof (*svf));
1059 1250
1251 SvRV_set (coro_current, old_current);
1252
1060 load_perl (aTHX_ current); 1253 load_perl (aTHX_ current);
1061 } 1254 }
1062 1255
1063 { 1256 {
1064 unsigned int i; 1257 unsigned int i;
… …
1071 SvREFCNT_dec (coro->invoke_cb); 1264 SvREFCNT_dec (coro->invoke_cb);
1072 SvREFCNT_dec (coro->invoke_av); 1265 SvREFCNT_dec (coro->invoke_av);
1073 } 1266 }
1074} 1267}
1075 1268
1076INLINE void 1269ecb_inline void
1077free_coro_mortal (pTHX) 1270free_coro_mortal (pTHX)
1078{ 1271{
1079 if (expect_true (coro_mortal)) 1272 if (ecb_expect_true (coro_mortal))
1080 { 1273 {
1081 SvREFCNT_dec (coro_mortal); 1274 SvREFCNT_dec ((SV *)coro_mortal);
1082 coro_mortal = 0; 1275 coro_mortal = 0;
1083 } 1276 }
1084} 1277}
1085 1278
1086static int 1279static int
… …
1219 1412
1220 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1413 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1221} 1414}
1222 1415
1223/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1416/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1224static void NOINLINE 1417static void ecb_noinline
1225cctx_prepare (pTHX) 1418cctx_prepare (pTHX)
1226{ 1419{
1227 PL_top_env = &PL_start_env; 1420 PL_top_env = &PL_start_env;
1228 1421
1229 if (cctx_current->flags & CC_TRACE) 1422 if (cctx_current->flags & CC_TRACE)
… …
1240 slf_frame.prepare = slf_prepare_set_stacklevel; 1433 slf_frame.prepare = slf_prepare_set_stacklevel;
1241 slf_frame.check = slf_check_set_stacklevel; 1434 slf_frame.check = slf_check_set_stacklevel;
1242} 1435}
1243 1436
1244/* the tail of transfer: execute stuff we can only do after a transfer */ 1437/* the tail of transfer: execute stuff we can only do after a transfer */
1245INLINE void 1438ecb_inline void
1246transfer_tail (pTHX) 1439transfer_tail (pTHX)
1247{ 1440{
1248 free_coro_mortal (aTHX); 1441 free_coro_mortal (aTHX);
1442}
1443
1444/* try to exit the same way perl's main function would do */
1445/* we do not bother resetting the environment or other things *7
1446/* that are not, uhm, essential */
1447/* this obviously also doesn't work when perl is embedded */
1448static void ecb_noinline ecb_cold
1449perlish_exit (pTHX)
1450{
1451 int exitstatus = perl_destruct (PL_curinterp);
1452 perl_free (PL_curinterp);
1453 exit (exitstatus);
1249} 1454}
1250 1455
1251/* 1456/*
1252 * this is a _very_ stripped down perl interpreter ;) 1457 * this is a _very_ stripped down perl interpreter ;)
1253 */ 1458 */
… …
1282 */ 1487 */
1283 1488
1284 /* 1489 /*
1285 * If perl-run returns we assume exit() was being called or the coro 1490 * If perl-run returns we assume exit() was being called or the coro
1286 * fell off the end, which seems to be the only valid (non-bug) 1491 * fell off the end, which seems to be the only valid (non-bug)
1287 * reason for perl_run to return. We try to exit by jumping to the 1492 * reason for perl_run to return. We try to mimic whatever perl is normally
1288 * bootstrap-time "top" top_env, as we cannot restore the "main" 1493 * doing in that case. YMMV.
1289 * coroutine as Coro has no such concept.
1290 * This actually isn't valid with the pthread backend, but OSes requiring
1291 * that backend are too broken to do it in a standards-compliant way.
1292 */ 1494 */
1293 PL_top_env = main_top_env; 1495 perlish_exit (aTHX);
1294 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1295 } 1496 }
1296} 1497}
1297 1498
1298static coro_cctx * 1499static coro_cctx *
1299cctx_new () 1500cctx_new (void)
1300{ 1501{
1301 coro_cctx *cctx; 1502 coro_cctx *cctx;
1302 1503
1303 ++cctx_count; 1504 ++cctx_count;
1304 New (0, cctx, 1, coro_cctx); 1505 New (0, cctx, 1, coro_cctx);
… …
1310 return cctx; 1511 return cctx;
1311} 1512}
1312 1513
1313/* create a new cctx only suitable as source */ 1514/* create a new cctx only suitable as source */
1314static coro_cctx * 1515static coro_cctx *
1315cctx_new_empty () 1516cctx_new_empty (void)
1316{ 1517{
1317 coro_cctx *cctx = cctx_new (); 1518 coro_cctx *cctx = cctx_new ();
1318 1519
1319 cctx->sptr = 0; 1520 cctx->stack.sptr = 0;
1320 coro_create (&cctx->cctx, 0, 0, 0, 0); 1521 coro_create (&cctx->cctx, 0, 0, 0, 0);
1321 1522
1322 return cctx; 1523 return cctx;
1323} 1524}
1324 1525
1325/* create a new cctx suitable as destination/running a perl interpreter */ 1526/* create a new cctx suitable as destination/running a perl interpreter */
1326static coro_cctx * 1527static coro_cctx *
1327cctx_new_run () 1528cctx_new_run (void)
1328{ 1529{
1329 coro_cctx *cctx = cctx_new (); 1530 coro_cctx *cctx = cctx_new ();
1330 void *stack_start;
1331 size_t stack_size;
1332 1531
1333#if HAVE_MMAP 1532 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1334 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1335 /* mmap supposedly does allocate-on-write for us */
1336 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1337
1338 if (cctx->sptr != (void *)-1)
1339 {
1340 #if CORO_STACKGUARD
1341 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1342 #endif
1343 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1344 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1345 cctx->flags |= CC_MAPPED;
1346 } 1533 {
1347 else
1348#endif
1349 {
1350 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1351 New (0, cctx->sptr, cctx_stacksize, long);
1352
1353 if (!cctx->sptr)
1354 {
1355 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1534 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1356 _exit (EXIT_FAILURE); 1535 _exit (EXIT_FAILURE);
1357 }
1358
1359 stack_start = cctx->sptr;
1360 stack_size = cctx->ssize;
1361 } 1536 }
1362 1537
1363 #if CORO_USE_VALGRIND
1364 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1365 #endif
1366
1367 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1538 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1368 1539
1369 return cctx; 1540 return cctx;
1370} 1541}
1371 1542
1372static void 1543static void
1373cctx_destroy (coro_cctx *cctx) 1544cctx_destroy (coro_cctx *cctx)
1374{ 1545{
1375 if (!cctx) 1546 if (!cctx)
1376 return; 1547 return;
1377 1548
1378 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1549 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1379 1550
1380 --cctx_count; 1551 --cctx_count;
1381 coro_destroy (&cctx->cctx); 1552 coro_destroy (&cctx->cctx);
1382 1553
1383 /* coro_transfer creates new, empty cctx's */ 1554 coro_stack_free (&cctx->stack);
1384 if (cctx->sptr)
1385 {
1386 #if CORO_USE_VALGRIND
1387 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1388 #endif
1389
1390#if HAVE_MMAP
1391 if (cctx->flags & CC_MAPPED)
1392 munmap (cctx->sptr, cctx->ssize);
1393 else
1394#endif
1395 Safefree (cctx->sptr);
1396 }
1397 1555
1398 Safefree (cctx); 1556 Safefree (cctx);
1399} 1557}
1400 1558
1401/* wether this cctx should be destructed */ 1559/* wether this cctx should be destructed */
1402#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1560#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1403 1561
1404static coro_cctx * 1562static coro_cctx *
1405cctx_get (pTHX) 1563cctx_get (pTHX)
1406{ 1564{
1407 while (expect_true (cctx_first)) 1565 while (ecb_expect_true (cctx_first))
1408 { 1566 {
1409 coro_cctx *cctx = cctx_first; 1567 coro_cctx *cctx = cctx_first;
1410 cctx_first = cctx->next; 1568 cctx_first = cctx->next;
1411 --cctx_idle; 1569 --cctx_idle;
1412 1570
1413 if (expect_true (!CCTX_EXPIRED (cctx))) 1571 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1414 return cctx; 1572 return cctx;
1415 1573
1416 cctx_destroy (cctx); 1574 cctx_destroy (cctx);
1417 } 1575 }
1418 1576
… …
1420} 1578}
1421 1579
1422static void 1580static void
1423cctx_put (coro_cctx *cctx) 1581cctx_put (coro_cctx *cctx)
1424{ 1582{
1425 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1583 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1426 1584
1427 /* free another cctx if overlimit */ 1585 /* free another cctx if overlimit */
1428 if (expect_false (cctx_idle >= cctx_max_idle)) 1586 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1429 { 1587 {
1430 coro_cctx *first = cctx_first; 1588 coro_cctx *first = cctx_first;
1431 cctx_first = first->next; 1589 cctx_first = first->next;
1432 --cctx_idle; 1590 --cctx_idle;
1433 1591
… …
1444static void 1602static void
1445transfer_check (pTHX_ struct coro *prev, struct coro *next) 1603transfer_check (pTHX_ struct coro *prev, struct coro *next)
1446{ 1604{
1447 /* TODO: throwing up here is considered harmful */ 1605 /* TODO: throwing up here is considered harmful */
1448 1606
1449 if (expect_true (prev != next)) 1607 if (ecb_expect_true (prev != next))
1450 { 1608 {
1451 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1609 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1452 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1610 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1453 1611
1454 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1612 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1455 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1613 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1456 1614
1457#if !PERL_VERSION_ATLEAST (5,10,0) 1615#if !PERL_VERSION_ATLEAST (5,10,0)
1458 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1616 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1459 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1617 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1460#endif 1618#endif
1461 } 1619 }
1462} 1620}
1463 1621
1464/* always use the TRANSFER macro */ 1622/* always use the TRANSFER macro */
1465static void NOINLINE /* noinline so we have a fixed stackframe */ 1623static void ecb_noinline /* noinline so we have a fixed stackframe */
1466transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1624transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1467{ 1625{
1468 dSTACKLEVEL; 1626 dSTACKLEVEL;
1469 1627
1470 /* sometimes transfer is only called to set idle_sp */ 1628 /* sometimes transfer is only called to set idle_sp */
1471 if (expect_false (!prev)) 1629 if (ecb_expect_false (!prev))
1472 { 1630 {
1473 cctx_current->idle_sp = STACKLEVEL; 1631 cctx_current->idle_sp = STACKLEVEL;
1474 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1632 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1475 } 1633 }
1476 else if (expect_true (prev != next)) 1634 else if (ecb_expect_true (prev != next))
1477 { 1635 {
1478 coro_cctx *cctx_prev; 1636 coro_cctx *cctx_prev;
1479 1637
1480 if (expect_false (prev->flags & CF_NEW)) 1638 if (ecb_expect_false (prev->flags & CF_NEW))
1481 { 1639 {
1482 /* create a new empty/source context */ 1640 /* create a new empty/source context */
1483 prev->flags &= ~CF_NEW; 1641 prev->flags &= ~CF_NEW;
1484 prev->flags |= CF_RUNNING; 1642 prev->flags |= CF_RUNNING;
1485 } 1643 }
… …
1488 next->flags |= CF_RUNNING; 1646 next->flags |= CF_RUNNING;
1489 1647
1490 /* first get rid of the old state */ 1648 /* first get rid of the old state */
1491 save_perl (aTHX_ prev); 1649 save_perl (aTHX_ prev);
1492 1650
1493 if (expect_false (next->flags & CF_NEW)) 1651 if (ecb_expect_false (next->flags & CF_NEW))
1494 { 1652 {
1495 /* need to start coroutine */ 1653 /* need to start coroutine */
1496 next->flags &= ~CF_NEW; 1654 next->flags &= ~CF_NEW;
1497 /* setup coroutine call */ 1655 /* setup coroutine call */
1498 coro_setup (aTHX_ next); 1656 init_perl (aTHX_ next);
1499 } 1657 }
1500 else 1658 else
1501 load_perl (aTHX_ next); 1659 load_perl (aTHX_ next);
1502 1660
1503 /* possibly untie and reuse the cctx */ 1661 /* possibly untie and reuse the cctx */
1504 if (expect_true ( 1662 if (ecb_expect_true (
1505 cctx_current->idle_sp == STACKLEVEL 1663 cctx_current->idle_sp == STACKLEVEL
1506 && !(cctx_current->flags & CC_TRACE) 1664 && !(cctx_current->flags & CC_TRACE)
1507 && !force_cctx 1665 && !force_cctx
1508 )) 1666 ))
1509 { 1667 {
1510 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1668 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1511 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1669 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1512 1670
1513 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1671 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1514 /* without this the next cctx_get might destroy the running cctx while still in use */ 1672 /* without this the next cctx_get might destroy the running cctx while still in use */
1515 if (expect_false (CCTX_EXPIRED (cctx_current))) 1673 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1516 if (expect_true (!next->cctx)) 1674 if (ecb_expect_true (!next->cctx))
1517 next->cctx = cctx_get (aTHX); 1675 next->cctx = cctx_get (aTHX);
1518 1676
1519 cctx_put (cctx_current); 1677 cctx_put (cctx_current);
1520 } 1678 }
1521 else 1679 else
1522 prev->cctx = cctx_current; 1680 prev->cctx = cctx_current;
1523 1681
1524 ++next->usecount; 1682 ++next->usecount;
1525 1683
1526 cctx_prev = cctx_current; 1684 cctx_prev = cctx_current;
1527 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1685 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1528 1686
1529 next->cctx = 0; 1687 next->cctx = 0;
1530 1688
1531 if (expect_false (cctx_prev != cctx_current)) 1689 if (ecb_expect_false (cctx_prev != cctx_current))
1532 { 1690 {
1533 cctx_prev->top_env = PL_top_env; 1691 cctx_prev->top_env = PL_top_env;
1534 PL_top_env = cctx_current->top_env; 1692 PL_top_env = cctx_current->top_env;
1535 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1693 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1536 } 1694 }
… …
1542#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1700#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1543#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1701#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1544 1702
1545/** high level stuff ********************************************************/ 1703/** high level stuff ********************************************************/
1546 1704
1705/* this function is actually Coro, not Coro::State, but we call it from here */
1706/* because it is convenient - but it hasn't been declared yet for that reason */
1547static int 1707static void
1708coro_call_on_destroy (pTHX_ struct coro *coro);
1709
1710static void
1548coro_state_destroy (pTHX_ struct coro *coro) 1711coro_state_destroy (pTHX_ struct coro *coro)
1549{ 1712{
1550 if (coro->flags & CF_DESTROYED) 1713 if (coro->flags & CF_ZOMBIE)
1551 return 0; 1714 return;
1552 1715
1553 if (coro->on_destroy && !PL_dirty)
1554 coro->on_destroy (aTHX_ coro); 1716 slf_destroy (aTHX_ coro);
1555 1717
1556 coro->flags |= CF_DESTROYED; 1718 coro->flags |= CF_ZOMBIE;
1557 1719
1558 if (coro->flags & CF_READY) 1720 if (coro->flags & CF_READY)
1559 { 1721 {
1560 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1722 /* reduce nready, as destroying a ready coro effectively unreadies it */
1561 /* alternative: look through all ready queues and remove the coro */ 1723 /* alternative: look through all ready queues and remove the coro */
1562 --coro_nready; 1724 --coro_nready;
1563 } 1725 }
1564 else 1726 else
1565 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1727 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1728
1729 if (coro->next) coro->next->prev = coro->prev;
1730 if (coro->prev) coro->prev->next = coro->next;
1731 if (coro == coro_first) coro_first = coro->next;
1566 1732
1567 if (coro->mainstack 1733 if (coro->mainstack
1568 && coro->mainstack != main_mainstack 1734 && coro->mainstack != main_mainstack
1569 && coro->slot 1735 && coro->slot
1570 && !PL_dirty) 1736 && !PL_dirty)
1571 coro_destruct_perl (aTHX_ coro); 1737 destroy_perl (aTHX_ coro);
1572 1738
1573 cctx_destroy (coro->cctx); 1739 cctx_destroy (coro->cctx);
1574 SvREFCNT_dec (coro->startcv); 1740 SvREFCNT_dec (coro->startcv);
1575 SvREFCNT_dec (coro->args); 1741 SvREFCNT_dec (coro->args);
1742 SvREFCNT_dec (coro->swap_sv);
1576 SvREFCNT_dec (CORO_THROW); 1743 SvREFCNT_dec (CORO_THROW);
1577 1744
1578 if (coro->next) coro->next->prev = coro->prev; 1745 coro_call_on_destroy (aTHX_ coro);
1579 if (coro->prev) coro->prev->next = coro->next;
1580 if (coro == coro_first) coro_first = coro->next;
1581 1746
1582 return 1; 1747 /* more destruction mayhem in coro_state_free */
1583} 1748}
1584 1749
1585static int 1750static int
1586coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1751coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1587{ 1752{
1588 struct coro *coro = (struct coro *)mg->mg_ptr; 1753 struct coro *coro = (struct coro *)mg->mg_ptr;
1589 mg->mg_ptr = 0; 1754 mg->mg_ptr = 0;
1590 1755
1591 coro->hv = 0;
1592
1593 if (--coro->refcnt < 0)
1594 {
1595 coro_state_destroy (aTHX_ coro); 1756 coro_state_destroy (aTHX_ coro);
1757 SvREFCNT_dec (coro->on_destroy);
1758 SvREFCNT_dec (coro->status);
1759
1596 Safefree (coro); 1760 Safefree (coro);
1597 }
1598 1761
1599 return 0; 1762 return 0;
1600} 1763}
1601 1764
1602static int 1765static int ecb_cold
1603coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1766coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1604{ 1767{
1605 struct coro *coro = (struct coro *)mg->mg_ptr; 1768 /* called when perl clones the current process the slow way (windows process emulation) */
1606 1769 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1607 ++coro->refcnt; 1770 mg->mg_ptr = 0;
1771 mg->mg_virtual = 0;
1608 1772
1609 return 0; 1773 return 0;
1610} 1774}
1611 1775
1612static MGVTBL coro_state_vtbl = { 1776static MGVTBL coro_state_vtbl = {
… …
1637 TRANSFER (ta, 1); 1801 TRANSFER (ta, 1);
1638} 1802}
1639 1803
1640/** Coro ********************************************************************/ 1804/** Coro ********************************************************************/
1641 1805
1642INLINE void 1806ecb_inline void
1643coro_enq (pTHX_ struct coro *coro) 1807coro_enq (pTHX_ struct coro *coro)
1644{ 1808{
1645 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1809 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1646 1810
1647 SvREFCNT_inc_NN (coro->hv); 1811 SvREFCNT_inc_NN (coro->hv);
… …
1649 coro->next_ready = 0; 1813 coro->next_ready = 0;
1650 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1814 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1651 ready [1] = coro; 1815 ready [1] = coro;
1652} 1816}
1653 1817
1654INLINE struct coro * 1818ecb_inline struct coro *
1655coro_deq (pTHX) 1819coro_deq (pTHX)
1656{ 1820{
1657 int prio; 1821 int prio;
1658 1822
1659 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1823 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1712{ 1876{
1713 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1877 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1714} 1878}
1715 1879
1716/* expects to own a reference to next->hv */ 1880/* expects to own a reference to next->hv */
1717INLINE void 1881ecb_inline void
1718prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1882prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1719{ 1883{
1720 SV *prev_sv = SvRV (coro_current); 1884 SV *prev_sv = SvRV (coro_current);
1721 1885
1722 ta->prev = SvSTATE_hv (prev_sv); 1886 ta->prev = SvSTATE_hv (prev_sv);
… …
1735{ 1899{
1736 for (;;) 1900 for (;;)
1737 { 1901 {
1738 struct coro *next = coro_deq (aTHX); 1902 struct coro *next = coro_deq (aTHX);
1739 1903
1740 if (expect_true (next)) 1904 if (ecb_expect_true (next))
1741 { 1905 {
1742 /* cannot transfer to destroyed coros, skip and look for next */ 1906 /* cannot transfer to destroyed coros, skip and look for next */
1743 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1907 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1744 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1908 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1745 else 1909 else
1746 { 1910 {
1747 next->flags &= ~CF_READY; 1911 next->flags &= ~CF_READY;
1748 --coro_nready; 1912 --coro_nready;
… …
1755 { 1919 {
1756 /* nothing to schedule: call the idle handler */ 1920 /* nothing to schedule: call the idle handler */
1757 if (SvROK (sv_idle) 1921 if (SvROK (sv_idle)
1758 && SvOBJECT (SvRV (sv_idle))) 1922 && SvOBJECT (SvRV (sv_idle)))
1759 { 1923 {
1924 if (SvRV (sv_idle) == SvRV (coro_current))
1925 {
1926 require_pv ("Carp");
1927
1928 {
1929 dSP;
1930
1931 ENTER;
1932 SAVETMPS;
1933
1934 PUSHMARK (SP);
1935 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1936 PUTBACK;
1937 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1938
1939 FREETMPS;
1940 LEAVE;
1941 }
1942 }
1943
1760 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1944 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1761 api_ready (aTHX_ SvRV (sv_idle)); 1945 api_ready (aTHX_ SvRV (sv_idle));
1762 --coro_nready; 1946 --coro_nready;
1763 } 1947 }
1764 else 1948 else
1765 { 1949 {
1950 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1766 dSP; 1951 dSP;
1767 1952
1768 ENTER; 1953 ENTER;
1769 SAVETMPS; 1954 SAVETMPS;
1770 1955
… …
1777 } 1962 }
1778 } 1963 }
1779 } 1964 }
1780} 1965}
1781 1966
1782INLINE void 1967ecb_inline void
1783prepare_cede (pTHX_ struct coro_transfer_args *ta) 1968prepare_cede (pTHX_ struct coro_transfer_args *ta)
1784{ 1969{
1785 api_ready (aTHX_ coro_current); 1970 api_ready (aTHX_ coro_current);
1786 prepare_schedule (aTHX_ ta); 1971 prepare_schedule (aTHX_ ta);
1787} 1972}
1788 1973
1789INLINE void 1974ecb_inline void
1790prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1975prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1791{ 1976{
1792 SV *prev = SvRV (coro_current); 1977 SV *prev = SvRV (coro_current);
1793 1978
1794 if (coro_nready) 1979 if (coro_nready)
… …
1824{ 2009{
1825 struct coro_transfer_args ta; 2010 struct coro_transfer_args ta;
1826 2011
1827 prepare_cede (aTHX_ &ta); 2012 prepare_cede (aTHX_ &ta);
1828 2013
1829 if (expect_true (ta.prev != ta.next)) 2014 if (ecb_expect_true (ta.prev != ta.next))
1830 { 2015 {
1831 TRANSFER (ta, 1); 2016 TRANSFER (ta, 1);
1832 return 1; 2017 return 1;
1833 } 2018 }
1834 else 2019 else
… …
1877 coro->slot->runops = RUNOPS_DEFAULT; 2062 coro->slot->runops = RUNOPS_DEFAULT;
1878 } 2063 }
1879} 2064}
1880 2065
1881static void 2066static void
2067coro_push_av (pTHX_ AV *av, I32 gimme_v)
2068{
2069 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2070 {
2071 dSP;
2072
2073 if (gimme_v == G_SCALAR)
2074 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2075 else
2076 {
2077 int i;
2078 EXTEND (SP, AvFILLp (av) + 1);
2079
2080 for (i = 0; i <= AvFILLp (av); ++i)
2081 PUSHs (AvARRAY (av)[i]);
2082 }
2083
2084 PUTBACK;
2085 }
2086}
2087
2088static void
2089coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2090{
2091 if (!coro->on_destroy)
2092 coro->on_destroy = newAV ();
2093
2094 av_push (coro->on_destroy, cb);
2095}
2096
2097static void
2098slf_destroy_join (pTHX_ struct CoroSLF *frame)
2099{
2100 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2101}
2102
2103static int
2104slf_check_join (pTHX_ struct CoroSLF *frame)
2105{
2106 struct coro *coro = (struct coro *)frame->data;
2107
2108 if (!coro->status)
2109 return 1;
2110
2111 frame->destroy = 0;
2112
2113 coro_push_av (aTHX_ coro->status, GIMME_V);
2114
2115 SvREFCNT_dec ((SV *)coro->hv);
2116
2117 return 0;
2118}
2119
2120static void
2121slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2122{
2123 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2124
2125 if (items > 1)
2126 croak ("join called with too many arguments");
2127
2128 if (coro->status)
2129 frame->prepare = prepare_nop;
2130 else
2131 {
2132 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2133 frame->prepare = prepare_schedule;
2134 }
2135
2136 frame->check = slf_check_join;
2137 frame->destroy = slf_destroy_join;
2138 frame->data = (void *)coro;
2139 SvREFCNT_inc (coro->hv);
2140}
2141
2142static void
1882coro_call_on_destroy (pTHX_ struct coro *coro) 2143coro_call_on_destroy (pTHX_ struct coro *coro)
1883{ 2144{
1884 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2145 AV *od = coro->on_destroy;
1885 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1886 2146
1887 if (on_destroyp) 2147 if (!od)
1888 { 2148 return;
1889 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1890 2149
2150 coro->on_destroy = 0;
2151 sv_2mortal ((SV *)od);
2152
1891 while (AvFILLp (on_destroy) >= 0) 2153 while (AvFILLp (od) >= 0)
2154 {
2155 SV *cb = sv_2mortal (av_pop (od));
2156
2157 /* coro hv's (and only hv's at the moment) are supported as well */
2158 if (SvSTATEhv_p (aTHX_ cb))
2159 api_ready (aTHX_ cb);
2160 else
1892 { 2161 {
1893 dSP; /* don't disturb outer sp */ 2162 dSP; /* don't disturb outer sp */
1894 SV *cb = av_pop (on_destroy);
1895
1896 PUSHMARK (SP); 2163 PUSHMARK (SP);
1897 2164
1898 if (statusp) 2165 if (coro->status)
1899 { 2166 {
1900 int i; 2167 PUTBACK;
1901 AV *status = (AV *)SvRV (*statusp); 2168 coro_push_av (aTHX_ coro->status, G_ARRAY);
1902 EXTEND (SP, AvFILLp (status) + 1); 2169 SPAGAIN;
1903
1904 for (i = 0; i <= AvFILLp (status); ++i)
1905 PUSHs (AvARRAY (status)[i]);
1906 } 2170 }
1907 2171
1908 PUTBACK; 2172 PUTBACK;
1909 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2173 call_sv (cb, G_VOID | G_DISCARD);
1910 } 2174 }
1911 } 2175 }
1912} 2176}
1913 2177
1914static void 2178static void
1915slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2179coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1916{ 2180{
1917 int i; 2181 AV *av;
1918 HV *hv = (HV *)SvRV (coro_current); 2182
1919 AV *av = newAV (); 2183 if (coro->status)
2184 {
2185 av = coro->status;
2186 av_clear (av);
2187 }
2188 else
2189 av = coro->status = newAV ();
1920 2190
1921 /* items are actually not so common, so optimise for this case */ 2191 /* items are actually not so common, so optimise for this case */
1922 if (items) 2192 if (items)
1923 { 2193 {
2194 int i;
2195
1924 av_extend (av, items - 1); 2196 av_extend (av, items - 1);
1925 2197
1926 for (i = 0; i < items; ++i) 2198 for (i = 0; i < items; ++i)
1927 av_push (av, SvREFCNT_inc_NN (arg [i])); 2199 av_push (av, SvREFCNT_inc_NN (arg [i]));
1928 } 2200 }
2201}
1929 2202
1930 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2203static void
1931 2204slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2205{
1932 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2206 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1933 api_ready (aTHX_ sv_manager); 2207 api_ready (aTHX_ sv_manager);
1934 2208
1935 frame->prepare = prepare_schedule; 2209 frame->prepare = prepare_schedule;
1936 frame->check = slf_check_repeat; 2210 frame->check = slf_check_repeat;
1937 2211
1938 /* as a minor optimisation, we could unwind all stacks here */ 2212 /* as a minor optimisation, we could unwind all stacks here */
1939 /* but that puts extra pressure on pp_slf, and is not worth much */ 2213 /* but that puts extra pressure on pp_slf, and is not worth much */
1940 /*coro_unwind_stacks (aTHX);*/ 2214 /*coro_unwind_stacks (aTHX);*/
2215}
2216
2217static void
2218slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2219{
2220 HV *coro_hv = (HV *)SvRV (coro_current);
2221
2222 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2223 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2224}
2225
2226static void
2227slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2228{
2229 HV *coro_hv;
2230 struct coro *coro;
2231
2232 if (items <= 0)
2233 croak ("Coro::cancel called without coro object,");
2234
2235 coro = SvSTATE (arg [0]);
2236 coro_hv = coro->hv;
2237
2238 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2239
2240 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2241 {
2242 /* coro currently busy cancelling something, so just notify it */
2243 coro->slf_frame.data = (void *)coro;
2244
2245 frame->prepare = prepare_nop;
2246 frame->check = slf_check_nop;
2247 }
2248 else if (coro_hv == (HV *)SvRV (coro_current))
2249 {
2250 /* cancelling the current coro is allowed, and equals terminate */
2251 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2252 }
2253 else
2254 {
2255 struct coro *self = SvSTATE_current;
2256
2257 if (!self)
2258 croak ("Coro::cancel called outside of thread content,");
2259
2260 /* otherwise we cancel directly, purely for speed reasons
2261 * unfortunately, this requires some magic trickery, as
2262 * somebody else could cancel us, so we have to fight the cancellation.
2263 * this is ugly, and hopefully fully worth the extra speed.
2264 * besides, I can't get the slow-but-safe version working...
2265 */
2266 slf_frame.data = 0;
2267 self->flags |= CF_NOCANCEL;
2268 coro_state_destroy (aTHX_ coro);
2269 self->flags &= ~CF_NOCANCEL;
2270
2271 if (slf_frame.data)
2272 {
2273 /* while we were busy we have been cancelled, so terminate */
2274 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2275 }
2276 else
2277 {
2278 frame->prepare = prepare_nop;
2279 frame->check = slf_check_nop;
2280 }
2281 }
2282}
2283
2284static int
2285slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2286{
2287 frame->prepare = 0;
2288 coro_unwind_stacks (aTHX);
2289
2290 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2291
2292 return 1;
2293}
2294
2295static int
2296safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2297{
2298 if (coro->cctx)
2299 croak ("coro inside C callback, unable to cancel at this time, caught");
2300
2301 if (coro->flags & CF_NEW)
2302 {
2303 coro_set_status (aTHX_ coro, arg, items);
2304 coro_state_destroy (aTHX_ coro);
2305 }
2306 else
2307 {
2308 if (!coro->slf_frame.prepare)
2309 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2310
2311 slf_destroy (aTHX_ coro);
2312
2313 coro_set_status (aTHX_ coro, arg, items);
2314 coro->slf_frame.prepare = prepare_nop;
2315 coro->slf_frame.check = slf_check_safe_cancel;
2316
2317 api_ready (aTHX_ (SV *)coro->hv);
2318 }
2319
2320 return 1;
1941} 2321}
1942 2322
1943/*****************************************************************************/ 2323/*****************************************************************************/
1944/* async pool handler */ 2324/* async pool handler */
1945 2325
… …
1976slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2356slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1977{ 2357{
1978 HV *hv = (HV *)SvRV (coro_current); 2358 HV *hv = (HV *)SvRV (coro_current);
1979 struct coro *coro = SvSTATE_hv ((SV *)hv); 2359 struct coro *coro = SvSTATE_hv ((SV *)hv);
1980 2360
1981 if (expect_true (coro->saved_deffh)) 2361 if (ecb_expect_true (coro->saved_deffh))
1982 { 2362 {
1983 /* subsequent iteration */ 2363 /* subsequent iteration */
1984 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2364 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1985 coro->saved_deffh = 0; 2365 coro->saved_deffh = 0;
1986 2366
1987 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2367 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1988 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2368 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1989 { 2369 {
1990 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2370 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1991 coro->invoke_av = newAV (); 2371 return;
1992
1993 frame->prepare = prepare_nop;
1994 } 2372 }
1995 else 2373 else
1996 { 2374 {
1997 av_clear (GvAV (PL_defgv)); 2375 av_clear (GvAV (PL_defgv));
1998 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2376 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2048 2426
2049static int 2427static int
2050slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2428slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2051{ 2429{
2052 SV *data = (SV *)frame->data; 2430 SV *data = (SV *)frame->data;
2053 2431
2054 if (CORO_THROW) 2432 if (CORO_THROW)
2055 return 0; 2433 return 0;
2056 2434
2057 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2435 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2058 return 1; 2436 return 1;
… …
2094 cb = sv_2mortal (coro->rouse_cb); 2472 cb = sv_2mortal (coro->rouse_cb);
2095 coro->rouse_cb = 0; 2473 coro->rouse_cb = 0;
2096 } 2474 }
2097 2475
2098 if (!SvROK (cb) 2476 if (!SvROK (cb)
2099 || SvTYPE (SvRV (cb)) != SVt_PVCV 2477 || SvTYPE (SvRV (cb)) != SVt_PVCV
2100 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2478 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2101 croak ("Coro::rouse_wait called with illegal callback argument,"); 2479 croak ("Coro::rouse_wait called with illegal callback argument,");
2102 2480
2103 { 2481 {
2104 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2482 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2221static void 2599static void
2222slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2600slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2223{ 2601{
2224 frame->prepare = prepare_cede_notself; 2602 frame->prepare = prepare_cede_notself;
2225 frame->check = slf_check_nop; 2603 frame->check = slf_check_nop;
2604}
2605
2606/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2607static void
2608slf_destroy (pTHX_ struct coro *coro)
2609{
2610 struct CoroSLF frame = coro->slf_frame;
2611
2612 /*
2613 * The on_destroy below most likely is from an SLF call.
2614 * Since by definition the SLF call will not finish when we destroy
2615 * the coro, we will have to force-finish it here, otherwise
2616 * cleanup functions cannot call SLF functions.
2617 */
2618 coro->slf_frame.prepare = 0;
2619
2620 /* this callback is reserved for slf functions needing to do cleanup */
2621 if (frame.destroy && frame.prepare && !PL_dirty)
2622 frame.destroy (aTHX_ &frame);
2226} 2623}
2227 2624
2228/* 2625/*
2229 * these not obviously related functions are all rolled into one 2626 * these not obviously related functions are all rolled into one
2230 * function to increase chances that they all will call transfer with the same 2627 * function to increase chances that they all will call transfer with the same
… …
2237 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2634 I32 checkmark; /* mark SP to see how many elements check has pushed */
2238 2635
2239 /* set up the slf frame, unless it has already been set-up */ 2636 /* set up the slf frame, unless it has already been set-up */
2240 /* the latter happens when a new coro has been started */ 2637 /* the latter happens when a new coro has been started */
2241 /* or when a new cctx was attached to an existing coroutine */ 2638 /* or when a new cctx was attached to an existing coroutine */
2242 if (expect_true (!slf_frame.prepare)) 2639 if (ecb_expect_true (!slf_frame.prepare))
2243 { 2640 {
2244 /* first iteration */ 2641 /* first iteration */
2245 dSP; 2642 dSP;
2246 SV **arg = PL_stack_base + TOPMARK + 1; 2643 SV **arg = PL_stack_base + TOPMARK + 1;
2247 int items = SP - arg; /* args without function object */ 2644 int items = SP - arg; /* args without function object */
… …
2288 while (slf_frame.check (aTHX_ &slf_frame)); 2685 while (slf_frame.check (aTHX_ &slf_frame));
2289 2686
2290 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2687 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2291 2688
2292 /* exception handling */ 2689 /* exception handling */
2293 if (expect_false (CORO_THROW)) 2690 if (ecb_expect_false (CORO_THROW))
2294 { 2691 {
2295 SV *exception = sv_2mortal (CORO_THROW); 2692 SV *exception = sv_2mortal (CORO_THROW);
2296 2693
2297 CORO_THROW = 0; 2694 CORO_THROW = 0;
2298 sv_setsv (ERRSV, exception); 2695 sv_setsv (ERRSV, exception);
2299 croak (0); 2696 croak (0);
2300 } 2697 }
2301 2698
2302 /* return value handling - mostly like entersub */ 2699 /* return value handling - mostly like entersub */
2303 /* make sure we put something on the stack in scalar context */ 2700 /* make sure we put something on the stack in scalar context */
2304 if (GIMME_V == G_SCALAR) 2701 if (GIMME_V == G_SCALAR
2702 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2305 { 2703 {
2306 dSP; 2704 dSP;
2307 SV **bot = PL_stack_base + checkmark; 2705 SV **bot = PL_stack_base + checkmark;
2308 2706
2309 if (sp == bot) /* too few, push undef */ 2707 if (sp == bot) /* too few, push undef */
2310 bot [1] = &PL_sv_undef; 2708 bot [1] = &PL_sv_undef;
2311 else if (sp != bot + 1) /* too many, take last one */ 2709 else /* too many, take last one */
2312 bot [1] = *sp; 2710 bot [1] = *sp;
2313 2711
2314 SP = bot + 1; 2712 SP = bot + 1;
2315 2713
2316 PUTBACK; 2714 PUTBACK;
… …
2349 if (PL_op->op_flags & OPf_STACKED) 2747 if (PL_op->op_flags & OPf_STACKED)
2350 { 2748 {
2351 if (items > slf_arga) 2749 if (items > slf_arga)
2352 { 2750 {
2353 slf_arga = items; 2751 slf_arga = items;
2354 free (slf_argv); 2752 Safefree (slf_argv);
2355 slf_argv = malloc (slf_arga * sizeof (SV *)); 2753 New (0, slf_argv, slf_arga, SV *);
2356 } 2754 }
2357 2755
2358 slf_argc = items; 2756 slf_argc = items;
2359 2757
2360 for (i = 0; i < items; ++i) 2758 for (i = 0; i < items; ++i)
… …
2423{ 2821{
2424 PerlIOBuf base; 2822 PerlIOBuf base;
2425 NV next, every; 2823 NV next, every;
2426} PerlIOCede; 2824} PerlIOCede;
2427 2825
2428static IV 2826static IV ecb_cold
2429PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2827PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2430{ 2828{
2431 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2829 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2432 2830
2433 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2831 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2434 self->next = nvtime () + self->every; 2832 self->next = nvtime () + self->every;
2435 2833
2436 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2834 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2437} 2835}
2438 2836
2439static SV * 2837static SV * ecb_cold
2440PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2838PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2441{ 2839{
2442 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2840 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2443 2841
2444 return newSVnv (self->every); 2842 return newSVnv (self->every);
… …
2556 SvREFCNT_dec (cb); 2954 SvREFCNT_dec (cb);
2557 } 2955 }
2558} 2956}
2559 2957
2560static void 2958static void
2561coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2959coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2562{ 2960{
2563 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2961 /* call $sem->adjust (0) to possibly wake up some other waiters */
2564 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2962 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2565} 2963}
2566 2964
2567static int 2965static int
2568slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2966slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2569{ 2967{
2570 AV *av = (AV *)frame->data; 2968 AV *av = (AV *)frame->data;
2571 SV *count_sv = AvARRAY (av)[0]; 2969 SV *count_sv = AvARRAY (av)[0];
2970 SV *coro_hv = SvRV (coro_current);
2971
2972 frame->destroy = 0;
2572 2973
2573 /* if we are about to throw, don't actually acquire the lock, just throw */ 2974 /* if we are about to throw, don't actually acquire the lock, just throw */
2574 if (CORO_THROW) 2975 if (ecb_expect_false (CORO_THROW))
2976 {
2977 /* we still might be responsible for the semaphore, so wake up others */
2978 coro_semaphore_adjust (aTHX_ av, 0);
2979
2575 return 0; 2980 return 0;
2981 }
2576 else if (SvIVX (count_sv) > 0) 2982 else if (SvIVX (count_sv) > 0)
2577 { 2983 {
2578 SvSTATE_current->on_destroy = 0;
2579
2580 if (acquire) 2984 if (acquire)
2581 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2985 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2582 else 2986 else
2583 coro_semaphore_adjust (aTHX_ av, 0); 2987 coro_semaphore_adjust (aTHX_ av, 0);
2584 2988
… …
2588 { 2992 {
2589 int i; 2993 int i;
2590 /* if we were woken up but can't down, we look through the whole */ 2994 /* if we were woken up but can't down, we look through the whole */
2591 /* waiters list and only add us if we aren't in there already */ 2995 /* waiters list and only add us if we aren't in there already */
2592 /* this avoids some degenerate memory usage cases */ 2996 /* this avoids some degenerate memory usage cases */
2593 2997 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2594 for (i = 1; i <= AvFILLp (av); ++i)
2595 if (AvARRAY (av)[i] == SvRV (coro_current)) 2998 if (AvARRAY (av)[i] == coro_hv)
2596 return 1; 2999 return 1;
2597 3000
2598 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3001 av_push (av, SvREFCNT_inc (coro_hv));
2599 return 1; 3002 return 1;
2600 } 3003 }
2601} 3004}
2602 3005
2603static int 3006static int
… …
2626 { 3029 {
2627 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3030 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2628 3031
2629 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3032 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2630 frame->prepare = prepare_schedule; 3033 frame->prepare = prepare_schedule;
2631
2632 /* to avoid race conditions when a woken-up coro gets terminated */ 3034 /* to avoid race conditions when a woken-up coro gets terminated */
2633 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3035 /* we arrange for a temporary on_destroy that calls adjust (0) */
2634 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3036 frame->destroy = coro_semaphore_destroy;
2635 } 3037 }
2636} 3038}
2637 3039
2638static void 3040static void
2639slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3041slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2721 { 3123 {
2722 SV *cb_cv = s_get_cv_croak (arg [1]); 3124 SV *cb_cv = s_get_cv_croak (arg [1]);
2723 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3125 av_push (av, SvREFCNT_inc_NN (cb_cv));
2724 3126
2725 if (SvIVX (AvARRAY (av)[0])) 3127 if (SvIVX (AvARRAY (av)[0]))
2726 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3128 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2727 3129
2728 frame->prepare = prepare_nop; 3130 frame->prepare = prepare_nop;
2729 frame->check = slf_check_nop; 3131 frame->check = slf_check_nop;
2730 } 3132 }
2731 else if (SvIVX (AvARRAY (av)[0])) 3133 else if (SvIVX (AvARRAY (av)[0]))
… …
2808 /* it quickly returns */ 3210 /* it quickly returns */
2809 if (CORO_THROW) 3211 if (CORO_THROW)
2810 return 0; 3212 return 0;
2811 3213
2812 /* one element that is an RV? repeat! */ 3214 /* one element that is an RV? repeat! */
2813 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3215 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2814 return 1; 3216 return 1;
2815 3217
2816 /* restore status */ 3218 /* restore status */
2817 { 3219 {
2818 SV *data_sv = av_pop (state); 3220 SV *data_sv = av_pop (state);
… …
2857 dSP; 3259 dSP;
2858 3260
2859 static SV *prio_cv; 3261 static SV *prio_cv;
2860 static SV *prio_sv; 3262 static SV *prio_sv;
2861 3263
2862 if (expect_false (!prio_cv)) 3264 if (ecb_expect_false (!prio_cv))
2863 { 3265 {
2864 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3266 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2865 prio_sv = newSViv (0); 3267 prio_sv = newSViv (0);
2866 } 3268 }
2867 3269
… …
2893 /* now call the AIO function - we assume our request is uncancelable */ 3295 /* now call the AIO function - we assume our request is uncancelable */
2894 PUTBACK; 3296 PUTBACK;
2895 call_sv ((SV *)req, G_VOID | G_DISCARD); 3297 call_sv ((SV *)req, G_VOID | G_DISCARD);
2896 } 3298 }
2897 3299
2898 /* now that the requets is going, we loop toll we have a result */ 3300 /* now that the request is going, we loop till we have a result */
2899 frame->data = (void *)state; 3301 frame->data = (void *)state;
2900 frame->prepare = prepare_schedule; 3302 frame->prepare = prepare_schedule;
2901 frame->check = slf_check_aio_req; 3303 frame->check = slf_check_aio_req;
2902} 3304}
2903 3305
… …
2918#endif 3320#endif
2919 3321
2920/*****************************************************************************/ 3322/*****************************************************************************/
2921 3323
2922static SV * 3324static SV *
2923coro_new (HV *stash, SV **argv, int argc, int is_coro) 3325coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
2924{ 3326{
2925 SV *coro_sv; 3327 SV *coro_sv;
2926 struct coro *coro; 3328 struct coro *coro;
2927 MAGIC *mg; 3329 MAGIC *mg;
2928 HV *hv; 3330 HV *hv;
… …
2973 } 3375 }
2974 3376
2975 return coro_sv; 3377 return coro_sv;
2976} 3378}
2977 3379
3380#ifndef __cplusplus
3381ecb_cold XS(boot_Coro__State);
3382#endif
3383
3384#if CORO_JIT
3385
3386static void ecb_noinline ecb_cold
3387pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3388{
3389 dSP;
3390 AV *av = newAV ();
3391
3392 av_store (av, 3, newSVuv (d));
3393 av_store (av, 2, newSVuv (c));
3394 av_store (av, 1, newSVuv (b));
3395 av_store (av, 0, newSVuv (a));
3396
3397 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3398
3399 PUTBACK;
3400}
3401
3402static void ecb_noinline ecb_cold
3403jit_init (pTHX)
3404{
3405 dSP;
3406 SV *load, *save;
3407 char *map_base;
3408 char *load_ptr, *save_ptr;
3409 STRLEN load_len, save_len, map_len;
3410 int count;
3411
3412 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3413
3414 PUSHMARK (SP);
3415 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3416 #include "state.h"
3417 count = call_pv ("Coro::State::_jit", G_ARRAY);
3418 SPAGAIN;
3419
3420 save = POPs; save_ptr = SvPVbyte (save, save_len);
3421 load = POPs; load_ptr = SvPVbyte (load, load_len);
3422
3423 map_len = load_len + save_len + 16;
3424
3425 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3426
3427 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3428
3429 load_perl_slots = (load_save_perl_slots_type)map_base;
3430 memcpy (map_base, load_ptr, load_len);
3431
3432 map_base += (load_len + 15) & ~15;
3433
3434 save_perl_slots = (load_save_perl_slots_type)map_base;
3435 memcpy (map_base, save_ptr, save_len);
3436
3437 /* we are good citizens and try to make the page read-only, so the evil evil */
3438 /* hackers might have it a bit more difficult */
3439 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3440
3441 PUTBACK;
3442 eval_pv ("undef &Coro::State::_jit", 1);
3443}
3444
3445#endif
3446
2978MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3447MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2979 3448
2980PROTOTYPES: DISABLE 3449PROTOTYPES: DISABLE
2981 3450
2982BOOT: 3451BOOT:
2983{ 3452{
3453#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3454#include "state.h"
2984#ifdef USE_ITHREADS 3455#ifdef USE_ITHREADS
2985# if CORO_PTHREAD 3456# if CORO_PTHREAD
2986 coro_thx = PERL_GET_CONTEXT; 3457 coro_thx = PERL_GET_CONTEXT;
2987# endif 3458# endif
2988#endif 3459#endif
2989 BOOT_PAGESIZE; 3460 /* perl defines these to check for existance first, but why it doesn't */
3461 /* just create them one at init time is not clear to me, except for */
3462 /* programs trying to delete them, but... */
3463 /* anyway, we declare this as invalid and make sure they are initialised here */
3464 DEFSV;
3465 ERRSV;
2990 3466
2991 cctx_current = cctx_new_empty (); 3467 cctx_current = cctx_new_empty ();
2992 3468
2993 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3469 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2994 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3470 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
3034 coroapi.prepare_nop = prepare_nop; 3510 coroapi.prepare_nop = prepare_nop;
3035 coroapi.prepare_schedule = prepare_schedule; 3511 coroapi.prepare_schedule = prepare_schedule;
3036 coroapi.prepare_cede = prepare_cede; 3512 coroapi.prepare_cede = prepare_cede;
3037 coroapi.prepare_cede_notself = prepare_cede_notself; 3513 coroapi.prepare_cede_notself = prepare_cede_notself;
3038 3514
3039 { 3515 time_init (aTHX);
3040 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3041
3042 if (!svp) croak ("Time::HiRes is required");
3043 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3044
3045 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3046
3047 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3048 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3049 }
3050 3516
3051 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3517 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3518#if CORO_JIT
3519 PUTBACK;
3520 jit_init (aTHX);
3521 SPAGAIN;
3522#endif
3052} 3523}
3053 3524
3054SV * 3525SV *
3055new (SV *klass, ...) 3526new (SV *klass, ...)
3056 ALIAS: 3527 ALIAS:
3057 Coro::new = 1 3528 Coro::new = 1
3058 CODE: 3529 CODE:
3059 RETVAL = coro_new (ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); 3530 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
3060 OUTPUT: 3531 OUTPUT:
3061 RETVAL 3532 RETVAL
3062 3533
3063void 3534void
3064transfer (...) 3535transfer (...)
3065 PROTOTYPE: $$ 3536 PROTOTYPE: $$
3066 CODE: 3537 CODE:
3067 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3538 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3068
3069bool
3070_destroy (SV *coro_sv)
3071 CODE:
3072 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3073 OUTPUT:
3074 RETVAL
3075
3076void
3077_exit (int code)
3078 PROTOTYPE: $
3079 CODE:
3080 _exit (code);
3081 3539
3082SV * 3540SV *
3083clone (Coro::State coro) 3541clone (Coro::State coro)
3084 CODE: 3542 CODE:
3085{ 3543{
… …
3140void 3598void
3141list () 3599list ()
3142 PROTOTYPE: 3600 PROTOTYPE:
3143 PPCODE: 3601 PPCODE:
3144{ 3602{
3145 struct coro *coro; 3603 struct coro *coro;
3146 for (coro = coro_first; coro; coro = coro->next) 3604 for (coro = coro_first; coro; coro = coro->next)
3147 if (coro->hv) 3605 if (coro->hv)
3148 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3606 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3149} 3607}
3150 3608
… …
3155 CODE: 3613 CODE:
3156{ 3614{
3157 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3615 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3158 { 3616 {
3159 struct coro *current = SvSTATE_current; 3617 struct coro *current = SvSTATE_current;
3618 struct CoroSLF slf_save;
3160 3619
3161 if (current != coro) 3620 if (current != coro)
3162 { 3621 {
3163 PUTBACK; 3622 PUTBACK;
3164 save_perl (aTHX_ current); 3623 save_perl (aTHX_ current);
3165 load_perl (aTHX_ coro); 3624 load_perl (aTHX_ coro);
3625 /* the coro is most likely in an active SLF call.
3626 * while not strictly required (the code we execute is
3627 * not allowed to call any SLF functions), it's cleaner
3628 * to reinitialise the slf_frame and restore it later.
3629 * This might one day allow us to actually do SLF calls
3630 * from code executed here.
3631 */
3632 slf_save = slf_frame;
3633 slf_frame.prepare = 0;
3166 SPAGAIN; 3634 SPAGAIN;
3167 } 3635 }
3168 3636
3169 PUSHSTACK; 3637 PUSHSTACK;
3170 3638
… …
3180 SPAGAIN; 3648 SPAGAIN;
3181 3649
3182 if (current != coro) 3650 if (current != coro)
3183 { 3651 {
3184 PUTBACK; 3652 PUTBACK;
3653 slf_frame = slf_save;
3185 save_perl (aTHX_ coro); 3654 save_perl (aTHX_ coro);
3186 load_perl (aTHX_ current); 3655 load_perl (aTHX_ current);
3187 SPAGAIN; 3656 SPAGAIN;
3188 } 3657 }
3189 } 3658 }
… …
3194 PROTOTYPE: $ 3663 PROTOTYPE: $
3195 ALIAS: 3664 ALIAS:
3196 is_ready = CF_READY 3665 is_ready = CF_READY
3197 is_running = CF_RUNNING 3666 is_running = CF_RUNNING
3198 is_new = CF_NEW 3667 is_new = CF_NEW
3199 is_destroyed = CF_DESTROYED 3668 is_destroyed = CF_ZOMBIE
3669 is_zombie = CF_ZOMBIE
3200 is_suspended = CF_SUSPENDED 3670 is_suspended = CF_SUSPENDED
3201 CODE: 3671 CODE:
3202 RETVAL = boolSV (coro->flags & ix); 3672 RETVAL = boolSV (coro->flags & ix);
3203 OUTPUT: 3673 OUTPUT:
3204 RETVAL 3674 RETVAL
3205 3675
3206void 3676void
3207throw (Coro::State self, SV *throw = &PL_sv_undef) 3677throw (SV *self, SV *exception = &PL_sv_undef)
3208 PROTOTYPE: $;$ 3678 PROTOTYPE: $;$
3209 CODE: 3679 CODE:
3210{ 3680{
3681 struct coro *coro = SvSTATE (self);
3211 struct coro *current = SvSTATE_current; 3682 struct coro *current = SvSTATE_current;
3212 SV **throwp = self == current ? &CORO_THROW : &self->except; 3683 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3213 SvREFCNT_dec (*throwp); 3684 SvREFCNT_dec (*exceptionp);
3214 SvGETMAGIC (throw); 3685 SvGETMAGIC (exception);
3215 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3686 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3687
3688 api_ready (aTHX_ self);
3216} 3689}
3217 3690
3218void 3691void
3219api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3692api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3220 PROTOTYPE: $;$ 3693 PROTOTYPE: $;$
… …
3275 3748
3276void 3749void
3277cancel (Coro::State self) 3750cancel (Coro::State self)
3278 CODE: 3751 CODE:
3279 coro_state_destroy (aTHX_ self); 3752 coro_state_destroy (aTHX_ self);
3280 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3281
3282 3753
3283SV * 3754SV *
3284enable_times (int enabled = enable_times) 3755enable_times (int enabled = enable_times)
3285 CODE: 3756 CODE:
3286{ 3757{
… …
3299 3770
3300void 3771void
3301times (Coro::State self) 3772times (Coro::State self)
3302 PPCODE: 3773 PPCODE:
3303{ 3774{
3304 struct coro *current = SvSTATE (coro_current); 3775 struct coro *current = SvSTATE (coro_current);
3305 3776
3306 if (expect_false (current == self)) 3777 if (ecb_expect_false (current == self))
3307 { 3778 {
3308 coro_times_update (); 3779 coro_times_update ();
3309 coro_times_add (SvSTATE (coro_current)); 3780 coro_times_add (SvSTATE (coro_current));
3310 } 3781 }
3311 3782
3312 EXTEND (SP, 2); 3783 EXTEND (SP, 2);
3313 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3784 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3314 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3785 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3315 3786
3316 if (expect_false (current == self)) 3787 if (ecb_expect_false (current == self))
3317 coro_times_sub (SvSTATE (coro_current)); 3788 coro_times_sub (SvSTATE (coro_current));
3318} 3789}
3790
3791void
3792swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3793 CODE:
3794{
3795 struct coro *current = SvSTATE_current;
3796
3797 if (current == coro)
3798 SWAP_SVS (current);
3799
3800 if (!coro->swap_sv)
3801 coro->swap_sv = newAV ();
3802
3803 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3804 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3805
3806 if (current == coro)
3807 SWAP_SVS (current);
3808}
3809
3319 3810
3320MODULE = Coro::State PACKAGE = Coro 3811MODULE = Coro::State PACKAGE = Coro
3321 3812
3322BOOT: 3813BOOT:
3323{ 3814{
3324 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3815 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3325 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3816 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3326 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3817 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3327 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3328 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3818 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3329 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3819 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3330 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3820 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3331 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3821 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3332 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3822 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3333 3823
3334 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3824 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3335 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3825 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3336 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3826 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3337 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3827 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3338 3828
3339 coro_stash = gv_stashpv ("Coro", TRUE); 3829 coro_stash = gv_stashpv ("Coro", TRUE);
3340 3830
3341 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3831 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3342 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3832 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
… …
3365 3855
3366SV * 3856SV *
3367async (...) 3857async (...)
3368 PROTOTYPE: &@ 3858 PROTOTYPE: &@
3369 CODE: 3859 CODE:
3370 RETVAL = coro_new (coro_stash, &ST (0), items, 1); 3860 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3371 api_ready (RETVAL); 3861 api_ready (aTHX_ RETVAL);
3372 OUTPUT: 3862 OUTPUT:
3373 RETVAL 3863 RETVAL
3864
3865void
3866_destroy (Coro::State coro)
3867 CODE:
3868 /* used by the manager thread */
3869 coro_state_destroy (aTHX_ coro);
3870
3871void
3872on_destroy (Coro::State coro, SV *cb)
3873 CODE:
3874 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3875
3876void
3877join (...)
3878 CODE:
3879 CORO_EXECUTE_SLF_XS (slf_init_join);
3374 3880
3375void 3881void
3376terminate (...) 3882terminate (...)
3377 CODE: 3883 CODE:
3378 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3884 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3885
3886void
3887cancel (...)
3888 CODE:
3889 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3890
3891int
3892safe_cancel (Coro::State self, ...)
3893 C_ARGS: aTHX_ self, &ST (1), items - 1
3379 3894
3380void 3895void
3381schedule (...) 3896schedule (...)
3382 CODE: 3897 CODE:
3383 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3898 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3496 for (i = 1; i < items; ++i) 4011 for (i = 1; i < items; ++i)
3497 av_push (av, SvREFCNT_inc_NN (ST (i))); 4012 av_push (av, SvREFCNT_inc_NN (ST (i)));
3498 4013
3499 if ((SV *)hv == &PL_sv_undef) 4014 if ((SV *)hv == &PL_sv_undef)
3500 { 4015 {
3501 PUSHMARK (SP); 4016 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3502 EXTEND (SP, 2);
3503 PUSHs (sv_Coro);
3504 PUSHs ((SV *)cv_pool_handler);
3505 PUTBACK;
3506 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3507 SPAGAIN;
3508
3509 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4017 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4018 SvREFCNT_dec (sv);
3510 } 4019 }
3511 4020
3512 { 4021 {
3513 struct coro *coro = SvSTATE_hv (hv); 4022 struct coro *coro = SvSTATE_hv (hv);
3514 4023
… …
3546 on_leave = 1 4055 on_leave = 1
3547 PROTOTYPE: & 4056 PROTOTYPE: &
3548 CODE: 4057 CODE:
3549{ 4058{
3550 struct coro *coro = SvSTATE_current; 4059 struct coro *coro = SvSTATE_current;
3551 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4060 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3552 4061
3553 block = s_get_cv_croak (block); 4062 block = s_get_cv_croak (block);
3554 4063
3555 if (!*avp) 4064 if (!*avp)
3556 *avp = newAV (); 4065 *avp = newAV ();
… …
3576 4085
3577SV * 4086SV *
3578new (SV *klass, SV *count = 0) 4087new (SV *klass, SV *count = 0)
3579 CODE: 4088 CODE:
3580{ 4089{
3581 int semcnt = 1; 4090 int semcnt = 1;
3582 4091
3583 if (count) 4092 if (count)
3584 { 4093 {
3585 SvGETMAGIC (count); 4094 SvGETMAGIC (count);
3586 4095
… …
3646 XSRETURN_NO; 4155 XSRETURN_NO;
3647} 4156}
3648 4157
3649void 4158void
3650waiters (SV *self) 4159waiters (SV *self)
3651 PPCODE: 4160 PPCODE:
3652{ 4161{
3653 AV *av = (AV *)SvRV (self); 4162 AV *av = (AV *)SvRV (self);
3654 int wcount = AvFILLp (av) + 1 - 1; 4163 int wcount = AvFILLp (av) + 1 - 1;
3655 4164
3656 if (GIMME_V == G_SCALAR) 4165 if (GIMME_V == G_SCALAR)
… …
3665} 4174}
3666 4175
3667MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4176MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3668 4177
3669void 4178void
3670_may_delete (SV *sem, int count, int extra_refs) 4179_may_delete (SV *sem, int count, unsigned int extra_refs)
3671 PPCODE: 4180 PPCODE:
3672{ 4181{
3673 AV *av = (AV *)SvRV (sem); 4182 AV *av = (AV *)SvRV (sem);
3674 4183
3675 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4184 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3676 && AvFILLp (av) == 0 /* no waiters, just count */ 4185 && AvFILLp (av) == 0 /* no waiters, just count */
3677 && SvIV (AvARRAY (av)[0]) == count) 4186 && SvIV (AvARRAY (av)[0]) == count)
3678 XSRETURN_YES; 4187 XSRETURN_YES;
… …
3699 4208
3700void 4209void
3701broadcast (SV *self) 4210broadcast (SV *self)
3702 CODE: 4211 CODE:
3703{ 4212{
3704 AV *av = (AV *)SvRV (self); 4213 AV *av = (AV *)SvRV (self);
3705 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4214 coro_signal_wake (aTHX_ av, AvFILLp (av));
3706} 4215}
3707 4216
3708void 4217void
3709send (SV *self) 4218send (SV *self)
… …
3717 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4226 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3718} 4227}
3719 4228
3720IV 4229IV
3721awaited (SV *self) 4230awaited (SV *self)
3722 CODE: 4231 CODE:
3723 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4232 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3724 OUTPUT: 4233 OUTPUT:
3725 RETVAL 4234 RETVAL
3726 4235
3727 4236
… …
3732 4241
3733void 4242void
3734_schedule (...) 4243_schedule (...)
3735 CODE: 4244 CODE:
3736{ 4245{
3737 static int incede; 4246 static int incede;
3738 4247
3739 api_cede_notself (aTHX); 4248 api_cede_notself (aTHX);
3740 4249
3741 ++incede; 4250 ++incede;
3742 while (coro_nready >= incede && api_cede (aTHX)) 4251 while (coro_nready >= incede && api_cede (aTHX))
… …
3786 { 4295 {
3787 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4296 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3788 coro_old_pp_sselect = 0; 4297 coro_old_pp_sselect = 0;
3789 } 4298 }
3790 4299
4300MODULE = Coro::State PACKAGE = Coro::Util
3791 4301
4302void
4303_exit (int code)
4304 CODE:
4305 _exit (code);
4306
4307NV
4308time ()
4309 CODE:
4310 RETVAL = nvtime (aTHX);
4311 OUTPUT:
4312 RETVAL
4313
4314NV
4315gettimeofday ()
4316 PPCODE:
4317{
4318 UV tv [2];
4319 u2time (aTHX_ tv);
4320 EXTEND (SP, 2);
4321 PUSHs (sv_2mortal (newSVuv (tv [0])));
4322 PUSHs (sv_2mortal (newSVuv (tv [1])));
4323}
4324

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