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Comparing Coro/Coro/State.xs (file contents):
Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC vs.
Revision 1.416 by root, Mon Dec 12 15:19:56 2011 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
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
17#include "ecb.h"
12 18
19#include <stddef.h>
13#include <stdio.h> 20#include <stdio.h>
14#include <errno.h> 21#include <errno.h>
15#include <assert.h> 22#include <assert.h>
16 23
17#ifdef WIN32 24#ifndef SVs_PADSTALE
25# define SVs_PADSTALE 0
26#endif
27
28#if defined(_WIN32)
29# undef HAS_GETTIMEOFDAY
18# undef setjmp 30# undef setjmp
19# undef longjmp 31# undef longjmp
20# undef _exit 32# undef _exit
21# define setjmp _setjmp /* deep magic */ 33# define setjmp _setjmp /* deep magic */
22#else 34#else
23# include <inttypes.h> /* most portable stdint.h */ 35# include <inttypes.h> /* most portable stdint.h */
24#endif 36#endif
25 37
26#ifdef HAVE_MMAP 38#if HAVE_MMAP
27# include <unistd.h> 39# include <unistd.h>
28# include <sys/mman.h> 40# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS 41# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON 42# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON 43# define MAP_ANONYMOUS MAP_ANON
… …
51#endif 63#endif
52 64
53/* the maximum number of idle cctx that will be pooled */ 65/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 66static int cctx_max_idle = 4;
55 67
56#define PERL_VERSION_ATLEAST(a,b,c) \ 68#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 69# define HAS_SCOPESTACK_NAME 1
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif 70#endif
108 71
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 72#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD 73# undef CORO_STACKGUARD
111#endif 74#endif
… …
127#else 90#else
128# define dSTACKLEVEL volatile void *stacklevel 91# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel) 92# define STACKLEVEL ((void *)&stacklevel)
130#endif 93#endif
131 94
132#define IN_DESTRUCT (PL_main_cv == Nullcv) 95#define IN_DESTRUCT PL_dirty
133
134#if __GNUC__ >= 3
135# define attribute(x) __attribute__(x)
136# define expect(expr,value) __builtin_expect ((expr),(value))
137# define INLINE static inline
138#else
139# define attribute(x)
140# define expect(expr,value) (expr)
141# define INLINE static
142#endif
143
144#define expect_false(expr) expect ((expr) != 0, 0)
145#define expect_true(expr) expect ((expr) != 0, 1)
146
147#define NOINLINE attribute ((noinline))
148 96
149#include "CoroAPI.h" 97#include "CoroAPI.h"
150#define GCoroAPI (&coroapi) /* very sneaky */ 98#define GCoroAPI (&coroapi) /* very sneaky */
151 99
152#ifdef USE_ITHREADS 100#ifdef USE_ITHREADS
153# if CORO_PTHREAD 101# if CORO_PTHREAD
154static void *coro_thx; 102static void *coro_thx;
155# endif 103# endif
156#endif 104#endif
157 105
106/* used in state.h */
107#define VAR(name,type) VARx(name, PL_ ## name, type)
108
109#ifdef __linux
110# include <time.h> /* for timespec */
111# include <syscall.h> /* for SYS_* */
112# ifdef SYS_clock_gettime
113# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
114# define CORO_CLOCK_MONOTONIC 1
115# define CORO_CLOCK_THREAD_CPUTIME_ID 3
116# endif
117#endif
118
158static double (*nvtime)(); /* so why doesn't it take void? */ 119static double (*nvtime)(); /* so why doesn't it take void? */
120static void (*u2time)(pTHX_ UV ret[2]);
159 121
160/* we hijack an hopefully unused CV flag for our purposes */ 122/* we hijack an hopefully unused CV flag for our purposes */
161#define CVf_SLF 0x4000 123#define CVf_SLF 0x4000
162static OP *pp_slf (pTHX); 124static OP *pp_slf (pTHX);
125static void slf_destroy (pTHX_ struct coro *coro);
163 126
164static U32 cctx_gen; 127static U32 cctx_gen;
165static size_t cctx_stacksize = CORO_STACKSIZE; 128static size_t cctx_stacksize = CORO_STACKSIZE;
166static struct CoroAPI coroapi; 129static struct CoroAPI coroapi;
167static AV *main_mainstack; /* used to differentiate between $main and others */ 130static AV *main_mainstack; /* used to differentiate between $main and others */
168static JMPENV *main_top_env; 131static JMPENV *main_top_env;
169static HV *coro_state_stash, *coro_stash; 132static HV *coro_state_stash, *coro_stash;
170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 133static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171 134
135static AV *av_destroy; /* destruction queue */
136static SV *sv_manager; /* the manager coro */
137static SV *sv_idle; /* $Coro::idle */
138
172static GV *irsgv; /* $/ */ 139static GV *irsgv; /* $/ */
173static GV *stdoutgv; /* *STDOUT */ 140static GV *stdoutgv; /* *STDOUT */
174static SV *rv_diehook; 141static SV *rv_diehook;
175static SV *rv_warnhook; 142static SV *rv_warnhook;
176static HV *hv_sig; /* %SIG */ 143static HV *hv_sig; /* %SIG */
177 144
178/* async_pool helper stuff */ 145/* async_pool helper stuff */
179static SV *sv_pool_rss; 146static SV *sv_pool_rss;
180static SV *sv_pool_size; 147static SV *sv_pool_size;
181static SV *sv_async_pool_idle; 148static SV *sv_async_pool_idle; /* description string */
182static AV *av_async_pool; 149static AV *av_async_pool; /* idle pool */
183static SV *sv_Coro; 150static SV *sv_Coro; /* class string */
184static CV *cv_pool_handler; 151static CV *cv_pool_handler;
185static CV *cv_coro_new;
186 152
187/* Coro::AnyEvent */ 153/* Coro::AnyEvent */
188static SV *sv_activity; 154static SV *sv_activity;
189 155
156/* enable processtime/realtime profiling */
157static char enable_times;
158typedef U32 coro_ts[2];
159static coro_ts time_real, time_cpu;
160static char times_valid;
161
190static struct coro_cctx *cctx_first; 162static struct coro_cctx *cctx_first;
191static int cctx_count, cctx_idle; 163static int cctx_count, cctx_idle;
192 164
193enum { 165enum
166{
194 CC_MAPPED = 0x01, 167 CC_MAPPED = 0x01,
195 CC_NOREUSE = 0x02, /* throw this away after tracing */ 168 CC_NOREUSE = 0x02, /* throw this away after tracing */
196 CC_TRACE = 0x04, 169 CC_TRACE = 0x04,
197 CC_TRACE_SUB = 0x08, /* trace sub calls */ 170 CC_TRACE_SUB = 0x08, /* trace sub calls */
198 CC_TRACE_LINE = 0x10, /* trace each statement */ 171 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
208 void *sptr; 181 void *sptr;
209 size_t ssize; 182 size_t ssize;
210 183
211 /* cpu state */ 184 /* cpu state */
212 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 185 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
186#ifndef NDEBUG
213 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 187 JMPENV *idle_te; /* same as idle_sp, but for top_env */
188#endif
214 JMPENV *top_env; 189 JMPENV *top_env;
215 coro_context cctx; 190 coro_context cctx;
216 191
217 U32 gen; 192 U32 gen;
218#if CORO_USE_VALGRIND 193#if CORO_USE_VALGRIND
219 int valgrind_id; 194 int valgrind_id;
220#endif 195#endif
221 unsigned char flags; 196 unsigned char flags;
222} coro_cctx; 197} coro_cctx;
223 198
199static coro_cctx *cctx_current; /* the currently running cctx */
200
201/*****************************************************************************/
202
203static MGVTBL coro_state_vtbl;
204
224enum { 205enum
206{
225 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
226 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
227 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
228 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 210 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
211 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
212 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
229}; 213};
230 214
231/* the structure where most of the perl state is stored, overlaid on the cxstack */ 215/* the structure where most of the perl state is stored, overlaid on the cxstack */
232typedef struct 216typedef struct
233{ 217{
234 SV *defsv;
235 AV *defav;
236 SV *errsv;
237 SV *irsgv;
238#define VAR(name,type) type name; 218#define VARx(name,expr,type) type name;
239# include "state.h" 219# include "state.h"
240#undef VAR 220#undef VARx
241} perl_slots; 221} perl_slots;
242 222
223/* how many context stack entries do we need for perl_slots */
243#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 224#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
244 225
245/* this is a structure representing a perl-level coroutine */ 226/* this is a structure representing a perl-level coroutine */
246struct coro { 227struct coro
228{
247 /* the C coroutine allocated to this perl coroutine, if any */ 229 /* the C coroutine allocated to this perl coroutine, if any */
248 coro_cctx *cctx; 230 coro_cctx *cctx;
231
232 /* ready queue */
233 struct coro *next_ready;
249 234
250 /* state data */ 235 /* state data */
251 struct CoroSLF slf_frame; /* saved slf frame */ 236 struct CoroSLF slf_frame; /* saved slf frame */
252 AV *mainstack; 237 AV *mainstack;
253 perl_slots *slot; /* basically the saved sp */ 238 perl_slots *slot; /* basically the saved sp */
254 239
255 CV *startcv; /* the CV to execute */ 240 CV *startcv; /* the CV to execute */
256 AV *args; /* data associated with this coroutine (initial args) */ 241 AV *args; /* data associated with this coroutine (initial args) */
257 int refcnt; /* coroutines are refcounted, yes */
258 int flags; /* CF_ flags */ 242 int flags; /* CF_ flags */
259 HV *hv; /* the perl hash associated with this coro, if any */ 243 HV *hv; /* the perl hash associated with this coro, if any */
260 void (*on_destroy)(pTHX_ struct coro *coro);
261 244
262 /* statistics */ 245 /* statistics */
263 int usecount; /* number of transfers to this coro */ 246 int usecount; /* number of transfers to this coro */
264 247
265 /* coro process data */ 248 /* coro process data */
266 int prio; 249 int prio;
267 SV *except; /* exception to be thrown */ 250 SV *except; /* exception to be thrown */
268 SV *rouse_cb; 251 SV *rouse_cb; /* last rouse callback */
252 AV *on_destroy; /* callbacks or coros to notify on destroy */
253 AV *status; /* the exit status list */
269 254
270 /* async_pool */ 255 /* async_pool */
271 SV *saved_deffh; 256 SV *saved_deffh;
272 SV *invoke_cb; 257 SV *invoke_cb;
273 AV *invoke_av; 258 AV *invoke_av;
274 259
260 /* on_enter/on_leave */
261 AV *on_enter;
262 AV *on_leave;
263
264 /* swap_sv */
265 AV *swap_sv;
266
267 /* times */
268 coro_ts t_cpu, t_real;
269
275 /* linked list */ 270 /* linked list */
276 struct coro *next, *prev; 271 struct coro *next, *prev;
277}; 272};
278 273
279typedef struct coro *Coro__State; 274typedef struct coro *Coro__State;
280typedef struct coro *Coro__State_or_hashref; 275typedef struct coro *Coro__State_or_hashref;
281 276
282/* the following variables are effectively part of the perl context */ 277/* the following variables are effectively part of the perl context */
283/* and get copied between struct coro and these variables */ 278/* and get copied between struct coro and these variables */
284/* the mainr easonw e don't support windows process emulation */ 279/* the main reason we don't support windows process emulation */
285static struct CoroSLF slf_frame; /* the current slf frame */ 280static struct CoroSLF slf_frame; /* the current slf frame */
286 281
287/** Coro ********************************************************************/ 282/** Coro ********************************************************************/
288 283
289#define PRIO_MAX 3 284#define CORO_PRIO_MAX 3
290#define PRIO_HIGH 1 285#define CORO_PRIO_HIGH 1
291#define PRIO_NORMAL 0 286#define CORO_PRIO_NORMAL 0
292#define PRIO_LOW -1 287#define CORO_PRIO_LOW -1
293#define PRIO_IDLE -3 288#define CORO_PRIO_IDLE -3
294#define PRIO_MIN -4 289#define CORO_PRIO_MIN -4
295 290
296/* for Coro.pm */ 291/* for Coro.pm */
297static SV *coro_current; 292static SV *coro_current;
298static SV *coro_readyhook; 293static SV *coro_readyhook;
299static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 294static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
300static CV *cv_coro_run, *cv_coro_terminate; 295static CV *cv_coro_run;
301static struct coro *coro_first; 296static struct coro *coro_first;
302#define coro_nready coroapi.nready 297#define coro_nready coroapi.nready
303 298
299/** JIT *********************************************************************/
300
301#if CORO_JIT
302 /* APPLE doesn't have HAVE_MMAP though */
303 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
304 #ifndef CORO_JIT_TYPE
305 #if __x86_64 && CORO_JIT_UNIXY
306 #define CORO_JIT_TYPE "amd64-unix"
307 #elif __i386 && CORO_JIT_UNIXY
308 #define CORO_JIT_TYPE "x86-unix"
309 #endif
310 #endif
311#endif
312
313#if !defined(CORO_JIT_TYPE) || !HAVE_MMAP
314 #undef CORO_JIT
315#endif
316
317#if CORO_JIT
318 typedef void (*load_save_perl_slots_type)(perl_slots *);
319 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
320#endif
321
322/** Coro::Select ************************************************************/
323
324static OP *(*coro_old_pp_sselect) (pTHX);
325static SV *coro_select_select;
326
327/* horrible hack, but if it works... */
328static OP *
329coro_pp_sselect (pTHX)
330{
331 dSP;
332 PUSHMARK (SP - 4); /* fake argument list */
333 XPUSHs (coro_select_select);
334 PUTBACK;
335
336 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
337 PL_op->op_flags |= OPf_STACKED;
338 PL_op->op_private = 0;
339 return PL_ppaddr [OP_ENTERSUB](aTHX);
340}
341
342/** time stuff **************************************************************/
343
344#ifdef HAS_GETTIMEOFDAY
345
346ecb_inline void
347coro_u2time (pTHX_ UV ret[2])
348{
349 struct timeval tv;
350 gettimeofday (&tv, 0);
351
352 ret [0] = tv.tv_sec;
353 ret [1] = tv.tv_usec;
354}
355
356ecb_inline double
357coro_nvtime (void)
358{
359 struct timeval tv;
360 gettimeofday (&tv, 0);
361
362 return tv.tv_sec + tv.tv_usec * 1e-6;
363}
364
365ecb_inline void
366time_init (pTHX)
367{
368 nvtime = coro_nvtime;
369 u2time = coro_u2time;
370}
371
372#else
373
374ecb_inline void
375time_init (pTHX)
376{
377 SV **svp;
378
379 require_pv ("Time/HiRes.pm");
380
381 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
382
383 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
384 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
385
386 nvtime = INT2PTR (double (*)(), SvIV (*svp));
387
388 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
389 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
390}
391
392#endif
393
304/** lowlevel stuff **********************************************************/ 394/** lowlevel stuff **********************************************************/
305 395
306static SV * 396static SV * ecb_noinline
307coro_get_sv (pTHX_ const char *name, int create) 397coro_get_sv (pTHX_ const char *name, int create)
308{ 398{
309#if PERL_VERSION_ATLEAST (5,10,0) 399#if PERL_VERSION_ATLEAST (5,10,0)
310 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 400 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
311 get_sv (name, create); 401 get_sv (name, create);
312#endif 402#endif
313 return get_sv (name, create); 403 return get_sv (name, create);
314} 404}
315 405
316static AV * 406static AV * ecb_noinline
317coro_get_av (pTHX_ const char *name, int create) 407coro_get_av (pTHX_ const char *name, int create)
318{ 408{
319#if PERL_VERSION_ATLEAST (5,10,0) 409#if PERL_VERSION_ATLEAST (5,10,0)
320 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 410 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
321 get_av (name, create); 411 get_av (name, create);
322#endif 412#endif
323 return get_av (name, create); 413 return get_av (name, create);
324} 414}
325 415
326static HV * 416static HV * ecb_noinline
327coro_get_hv (pTHX_ const char *name, int create) 417coro_get_hv (pTHX_ const char *name, int create)
328{ 418{
329#if PERL_VERSION_ATLEAST (5,10,0) 419#if PERL_VERSION_ATLEAST (5,10,0)
330 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 420 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
331 get_hv (name, create); 421 get_hv (name, create);
332#endif 422#endif
333 return get_hv (name, create); 423 return get_hv (name, create);
334} 424}
335 425
336/* may croak */ 426ecb_inline void
337INLINE CV * 427coro_times_update (void)
338coro_sv_2cv (pTHX_ SV *sv)
339{ 428{
340 HV *st; 429#ifdef coro_clock_gettime
341 GV *gvp; 430 struct timespec ts;
342 return sv_2cv (sv, &st, &gvp, 0);
343}
344 431
345static AV * 432 ts.tv_sec = ts.tv_nsec = 0;
433 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
434 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
435
436 ts.tv_sec = ts.tv_nsec = 0;
437 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
438 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
439#else
440 dTHX;
441 UV tv[2];
442
443 u2time (aTHX_ tv);
444 time_real [0] = tv [0];
445 time_real [1] = tv [1] * 1000;
446#endif
447}
448
449ecb_inline void
450coro_times_add (struct coro *c)
451{
452 c->t_real [1] += time_real [1];
453 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
454 c->t_real [0] += time_real [0];
455
456 c->t_cpu [1] += time_cpu [1];
457 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
458 c->t_cpu [0] += time_cpu [0];
459}
460
461ecb_inline void
462coro_times_sub (struct coro *c)
463{
464 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
465 c->t_real [1] -= time_real [1];
466 c->t_real [0] -= time_real [0];
467
468 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
469 c->t_cpu [1] -= time_cpu [1];
470 c->t_cpu [0] -= time_cpu [0];
471}
472
473/*****************************************************************************/
474/* magic glue */
475
476#define CORO_MAGIC_type_cv 26
477#define CORO_MAGIC_type_state PERL_MAGIC_ext
478
479#define CORO_MAGIC_NN(sv, type) \
480 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
481 ? SvMAGIC (sv) \
482 : mg_find (sv, type))
483
484#define CORO_MAGIC(sv, type) \
485 (ecb_expect_true (SvMAGIC (sv)) \
486 ? CORO_MAGIC_NN (sv, type) \
487 : 0)
488
489#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
490#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
491
492ecb_inline MAGIC *
493SvSTATEhv_p (pTHX_ SV *coro)
494{
495 MAGIC *mg;
496
497 if (ecb_expect_true (
498 SvTYPE (coro) == SVt_PVHV
499 && (mg = CORO_MAGIC_state (coro))
500 && mg->mg_virtual == &coro_state_vtbl
501 ))
502 return mg;
503
504 return 0;
505}
506
507ecb_inline struct coro *
508SvSTATE_ (pTHX_ SV *coro)
509{
510 MAGIC *mg;
511
512 if (SvROK (coro))
513 coro = SvRV (coro);
514
515 mg = SvSTATEhv_p (aTHX_ coro);
516 if (!mg)
517 croak ("Coro::State object required");
518
519 return (struct coro *)mg->mg_ptr;
520}
521
522#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
523
524/* faster than SvSTATE, but expects a coroutine hv */
525#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
526#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
527
528/*****************************************************************************/
529/* padlist management and caching */
530
531ecb_inline AV *
346coro_clone_padlist (pTHX_ CV *cv) 532coro_derive_padlist (pTHX_ CV *cv)
347{ 533{
348 AV *padlist = CvPADLIST (cv); 534 AV *padlist = CvPADLIST (cv);
349 AV *newpadlist, *newpad; 535 AV *newpadlist, *newpad;
350 536
351 newpadlist = newAV (); 537 newpadlist = newAV ();
… …
356 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 542 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
357#endif 543#endif
358 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 544 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
359 --AvFILLp (padlist); 545 --AvFILLp (padlist);
360 546
361 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 547 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
362 av_store (newpadlist, 1, (SV *)newpad); 548 av_store (newpadlist, 1, (SV *)newpad);
363 549
364 return newpadlist; 550 return newpadlist;
365} 551}
366 552
367static void 553ecb_inline void
368free_padlist (pTHX_ AV *padlist) 554free_padlist (pTHX_ AV *padlist)
369{ 555{
370 /* may be during global destruction */ 556 /* may be during global destruction */
371 if (SvREFCNT (padlist)) 557 if (!IN_DESTRUCT)
372 { 558 {
373 I32 i = AvFILLp (padlist); 559 I32 i = AvFILLp (padlist);
374 while (i >= 0) 560
561 while (i > 0) /* special-case index 0 */
375 { 562 {
376 SV **svp = av_fetch (padlist, i--, FALSE); 563 /* we try to be extra-careful here */
377 if (svp) 564 AV *av = (AV *)AvARRAY (padlist)[i--];
378 { 565 I32 j = AvFILLp (av);
379 SV *sv; 566
380 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 567 while (j >= 0)
568 SvREFCNT_dec (AvARRAY (av)[j--]);
569
570 AvFILLp (av) = -1;
381 SvREFCNT_dec (sv); 571 SvREFCNT_dec (av);
382
383 SvREFCNT_dec (*svp);
384 }
385 } 572 }
386 573
574 SvREFCNT_dec (AvARRAY (padlist)[0]);
575
576 AvFILLp (padlist) = -1;
387 SvREFCNT_dec ((SV*)padlist); 577 SvREFCNT_dec ((SV*)padlist);
388 } 578 }
389} 579}
390 580
391static int 581static int
392coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 582coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
393{ 583{
394 AV *padlist; 584 AV *padlist;
395 AV *av = (AV *)mg->mg_obj; 585 AV *av = (AV *)mg->mg_obj;
586
587 /* perl manages to free our internal AV and _then_ call us */
588 if (IN_DESTRUCT)
589 return 0;
396 590
397 /* casting is fun. */ 591 /* casting is fun. */
398 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 592 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
399 free_padlist (aTHX_ padlist); 593 free_padlist (aTHX_ padlist);
400 594
401 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 595 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
402 596
403 return 0; 597 return 0;
404} 598}
405
406#define CORO_MAGIC_type_cv 26
407#define CORO_MAGIC_type_state PERL_MAGIC_ext
408 599
409static MGVTBL coro_cv_vtbl = { 600static MGVTBL coro_cv_vtbl = {
410 0, 0, 0, 0, 601 0, 0, 0, 0,
411 coro_cv_free 602 coro_cv_free
412}; 603};
413 604
414#define CORO_MAGIC_NN(sv, type) \
415 (expect_true (SvMAGIC (sv)->mg_type == type) \
416 ? SvMAGIC (sv) \
417 : mg_find (sv, type))
418
419#define CORO_MAGIC(sv, type) \
420 (expect_true (SvMAGIC (sv)) \
421 ? CORO_MAGIC_NN (sv, type) \
422 : 0)
423
424#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
425#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
426
427INLINE struct coro *
428SvSTATE_ (pTHX_ SV *coro)
429{
430 HV *stash;
431 MAGIC *mg;
432
433 if (SvROK (coro))
434 coro = SvRV (coro);
435
436 if (expect_false (SvTYPE (coro) != SVt_PVHV))
437 croak ("Coro::State object required");
438
439 stash = SvSTASH (coro);
440 if (expect_false (stash != coro_stash && stash != coro_state_stash))
441 {
442 /* very slow, but rare, check */
443 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
444 croak ("Coro::State object required");
445 }
446
447 mg = CORO_MAGIC_state (coro);
448 return (struct coro *)mg->mg_ptr;
449}
450
451#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
452
453/* faster than SvSTATE, but expects a coroutine hv */
454#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
455#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
456
457/* the next two functions merely cache the padlists */ 605/* the next two functions merely cache the padlists */
458static void 606ecb_inline void
459get_padlist (pTHX_ CV *cv) 607get_padlist (pTHX_ CV *cv)
460{ 608{
461 MAGIC *mg = CORO_MAGIC_cv (cv); 609 MAGIC *mg = CORO_MAGIC_cv (cv);
462 AV *av; 610 AV *av;
463 611
464 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 612 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
465 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 613 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
466 else 614 else
467 { 615 {
468#if CORO_PREFER_PERL_FUNCTIONS 616#if CORO_PREFER_PERL_FUNCTIONS
469 /* this is probably cleaner? but also slower! */ 617 /* this is probably cleaner? but also slower! */
… …
471 CV *cp = Perl_cv_clone (aTHX_ cv); 619 CV *cp = Perl_cv_clone (aTHX_ cv);
472 CvPADLIST (cv) = CvPADLIST (cp); 620 CvPADLIST (cv) = CvPADLIST (cp);
473 CvPADLIST (cp) = 0; 621 CvPADLIST (cp) = 0;
474 SvREFCNT_dec (cp); 622 SvREFCNT_dec (cp);
475#else 623#else
476 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 624 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
477#endif 625#endif
478 } 626 }
479} 627}
480 628
481static void 629ecb_inline void
482put_padlist (pTHX_ CV *cv) 630put_padlist (pTHX_ CV *cv)
483{ 631{
484 MAGIC *mg = CORO_MAGIC_cv (cv); 632 MAGIC *mg = CORO_MAGIC_cv (cv);
485 AV *av; 633 AV *av;
486 634
487 if (expect_false (!mg)) 635 if (ecb_expect_false (!mg))
488 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 636 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
489 637
490 av = (AV *)mg->mg_obj; 638 av = (AV *)mg->mg_obj;
491 639
492 if (expect_false (AvFILLp (av) >= AvMAX (av))) 640 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
493 av_extend (av, AvMAX (av) + 1); 641 av_extend (av, AvFILLp (av) + 1);
494 642
495 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 643 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
496} 644}
497 645
498/** load & save, init *******************************************************/ 646/** load & save, init *******************************************************/
647
648ecb_inline void
649swap_sv (SV *a, SV *b)
650{
651 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
652 SV tmp;
653
654 /* swap sv_any */
655 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
656
657 /* swap sv_flags */
658 SvFLAGS (&tmp) = SvFLAGS (a);
659 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
660 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
661
662#if PERL_VERSION_ATLEAST (5,10,0)
663 /* perl 5.10 and later complicates this _quite_ a bit, but it also
664 * is much faster, so no quarrels here. alternatively, we could
665 * sv_upgrade to avoid this.
666 */
667 {
668 /* swap sv_u */
669 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
670
671 /* if SvANY points to the head, we need to adjust the pointers,
672 * as the pointer for a still points to b, and maybe vice versa.
673 */
674 #define svany_in_head(type) \
675 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
676
677 if (svany_in_head (SvTYPE (a)))
678 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
679
680 if (svany_in_head (SvTYPE (b)))
681 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
682 }
683#endif
684}
685
686/* swap sv heads, at least logically */
687static void
688swap_svs (pTHX_ Coro__State c)
689{
690 int i;
691
692 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
693 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
694}
695
696#define SWAP_SVS(coro) \
697 if (ecb_expect_false ((coro)->swap_sv)) \
698 swap_svs (aTHX_ (coro))
699
700static void
701on_enterleave_call (pTHX_ SV *cb);
499 702
500static void 703static void
501load_perl (pTHX_ Coro__State c) 704load_perl (pTHX_ Coro__State c)
502{ 705{
503 perl_slots *slot = c->slot; 706 perl_slots *slot = c->slot;
504 c->slot = 0; 707 c->slot = 0;
505 708
506 PL_mainstack = c->mainstack; 709 PL_mainstack = c->mainstack;
507 710
508 GvSV (PL_defgv) = slot->defsv; 711#if CORO_JIT
509 GvAV (PL_defgv) = slot->defav; 712 load_perl_slots (slot);
510 GvSV (PL_errgv) = slot->errsv; 713#else
511 GvSV (irsgv) = slot->irsgv;
512
513 #define VAR(name,type) PL_ ## name = slot->name; 714 #define VARx(name,expr,type) expr = slot->name;
514 # include "state.h" 715 # include "state.h"
515 #undef VAR 716 #undef VARx
717#endif
516 718
517 { 719 {
518 dSP; 720 dSP;
519 721
520 CV *cv; 722 CV *cv;
521 723
522 /* now do the ugly restore mess */ 724 /* now do the ugly restore mess */
523 while (expect_true (cv = (CV *)POPs)) 725 while (ecb_expect_true (cv = (CV *)POPs))
524 { 726 {
525 put_padlist (aTHX_ cv); /* mark this padlist as available */ 727 put_padlist (aTHX_ cv); /* mark this padlist as available */
526 CvDEPTH (cv) = PTR2IV (POPs); 728 CvDEPTH (cv) = PTR2IV (POPs);
527 CvPADLIST (cv) = (AV *)POPs; 729 CvPADLIST (cv) = (AV *)POPs;
528 } 730 }
… …
530 PUTBACK; 732 PUTBACK;
531 } 733 }
532 734
533 slf_frame = c->slf_frame; 735 slf_frame = c->slf_frame;
534 CORO_THROW = c->except; 736 CORO_THROW = c->except;
737
738 if (ecb_expect_false (enable_times))
739 {
740 if (ecb_expect_false (!times_valid))
741 coro_times_update ();
742
743 coro_times_sub (c);
744 }
745
746 if (ecb_expect_false (c->on_enter))
747 {
748 int i;
749
750 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
751 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
752 }
753
754 SWAP_SVS (c);
535} 755}
536 756
537static void 757static void
538save_perl (pTHX_ Coro__State c) 758save_perl (pTHX_ Coro__State c)
539{ 759{
760 SWAP_SVS (c);
761
762 if (ecb_expect_false (c->on_leave))
763 {
764 int i;
765
766 for (i = AvFILLp (c->on_leave); i >= 0; --i)
767 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
768 }
769
770 times_valid = 0;
771
772 if (ecb_expect_false (enable_times))
773 {
774 coro_times_update (); times_valid = 1;
775 coro_times_add (c);
776 }
777
540 c->except = CORO_THROW; 778 c->except = CORO_THROW;
541 c->slf_frame = slf_frame; 779 c->slf_frame = slf_frame;
542 780
543 { 781 {
544 dSP; 782 dSP;
… …
553 791
554 XPUSHs (Nullsv); 792 XPUSHs (Nullsv);
555 /* this loop was inspired by pp_caller */ 793 /* this loop was inspired by pp_caller */
556 for (;;) 794 for (;;)
557 { 795 {
558 while (expect_true (cxix >= 0)) 796 while (ecb_expect_true (cxix >= 0))
559 { 797 {
560 PERL_CONTEXT *cx = &ccstk[cxix--]; 798 PERL_CONTEXT *cx = &ccstk[cxix--];
561 799
562 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 800 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
563 { 801 {
564 CV *cv = cx->blk_sub.cv; 802 CV *cv = cx->blk_sub.cv;
565 803
566 if (expect_true (CvDEPTH (cv))) 804 if (ecb_expect_true (CvDEPTH (cv)))
567 { 805 {
568 EXTEND (SP, 3); 806 EXTEND (SP, 3);
569 PUSHs ((SV *)CvPADLIST (cv)); 807 PUSHs ((SV *)CvPADLIST (cv));
570 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 808 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
571 PUSHs ((SV *)cv); 809 PUSHs ((SV *)cv);
… …
574 get_padlist (aTHX_ cv); 812 get_padlist (aTHX_ cv);
575 } 813 }
576 } 814 }
577 } 815 }
578 816
579 if (expect_true (top_si->si_type == PERLSI_MAIN)) 817 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
580 break; 818 break;
581 819
582 top_si = top_si->si_prev; 820 top_si = top_si->si_prev;
583 ccstk = top_si->si_cxstack; 821 ccstk = top_si->si_cxstack;
584 cxix = top_si->si_cxix; 822 cxix = top_si->si_cxix;
… …
586 824
587 PUTBACK; 825 PUTBACK;
588 } 826 }
589 827
590 /* allocate some space on the context stack for our purposes */ 828 /* allocate some space on the context stack for our purposes */
591 /* we manually unroll here, as usually 2 slots is enough */ 829 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
592 if (SLOT_COUNT >= 1) CXINC;
593 if (SLOT_COUNT >= 2) CXINC;
594 if (SLOT_COUNT >= 3) CXINC;
595 { 830 {
596 int i; 831 unsigned int i;
832
597 for (i = 3; i < SLOT_COUNT; ++i) 833 for (i = 0; i < SLOT_COUNT; ++i)
598 CXINC; 834 CXINC;
599 } 835
600 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 836 cxstack_ix -= SLOT_COUNT; /* undo allocation */
837 }
601 838
602 c->mainstack = PL_mainstack; 839 c->mainstack = PL_mainstack;
603 840
604 { 841 {
605 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 842 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
606 843
607 slot->defav = GvAV (PL_defgv); 844#if CORO_JIT
608 slot->defsv = DEFSV; 845 save_perl_slots (slot);
609 slot->errsv = ERRSV; 846#else
610 slot->irsgv = GvSV (irsgv);
611
612 #define VAR(name,type) slot->name = PL_ ## name; 847 #define VARx(name,expr,type) slot->name = expr;
613 # include "state.h" 848 # include "state.h"
614 #undef VAR 849 #undef VARx
850#endif
615 } 851 }
616} 852}
617 853
618/* 854/*
619 * allocate various perl stacks. This is almost an exact copy 855 * allocate various perl stacks. This is almost an exact copy
… …
625# define coro_init_stacks(thx) init_stacks () 861# define coro_init_stacks(thx) init_stacks ()
626#else 862#else
627static void 863static void
628coro_init_stacks (pTHX) 864coro_init_stacks (pTHX)
629{ 865{
630 PL_curstackinfo = new_stackinfo(32, 8); 866 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
631 PL_curstackinfo->si_type = PERLSI_MAIN; 867 PL_curstackinfo->si_type = PERLSI_MAIN;
632 PL_curstack = PL_curstackinfo->si_stack; 868 PL_curstack = PL_curstackinfo->si_stack;
633 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 869 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
634 870
635 PL_stack_base = AvARRAY(PL_curstack); 871 PL_stack_base = AvARRAY(PL_curstack);
… …
650#endif 886#endif
651 887
652 New(54,PL_scopestack,8,I32); 888 New(54,PL_scopestack,8,I32);
653 PL_scopestack_ix = 0; 889 PL_scopestack_ix = 0;
654 PL_scopestack_max = 8; 890 PL_scopestack_max = 8;
891#if HAS_SCOPESTACK_NAME
892 New(54,PL_scopestack_name,8,const char*);
893#endif
655 894
656 New(54,PL_savestack,24,ANY); 895 New(54,PL_savestack,24,ANY);
657 PL_savestack_ix = 0; 896 PL_savestack_ix = 0;
658 PL_savestack_max = 24; 897 PL_savestack_max = 24;
659 898
… …
687 } 926 }
688 927
689 Safefree (PL_tmps_stack); 928 Safefree (PL_tmps_stack);
690 Safefree (PL_markstack); 929 Safefree (PL_markstack);
691 Safefree (PL_scopestack); 930 Safefree (PL_scopestack);
931#if HAS_SCOPESTACK_NAME
932 Safefree (PL_scopestack_name);
933#endif
692 Safefree (PL_savestack); 934 Safefree (PL_savestack);
693#if !PERL_VERSION_ATLEAST (5,10,0) 935#if !PERL_VERSION_ATLEAST (5,10,0)
694 Safefree (PL_retstack); 936 Safefree (PL_retstack);
695#endif 937#endif
696} 938}
… …
742#endif 984#endif
743 985
744/* 986/*
745 * This overrides the default magic get method of %SIG elements. 987 * This overrides the default magic get method of %SIG elements.
746 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 988 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
747 * and instead of tryign to save and restore the hash elements, we just provide 989 * and instead of trying to save and restore the hash elements (extremely slow),
748 * readback here. 990 * we just provide our own readback here.
749 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
750 * not expecting this to actually change the hook. This is a potential problem
751 * when a schedule happens then, but we ignore this.
752 */ 991 */
753static int 992static int ecb_cold
754coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 993coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
755{ 994{
756 const char *s = MgPV_nolen_const (mg); 995 const char *s = MgPV_nolen_const (mg);
757 996
758 if (*s == '_') 997 if (*s == '_')
… …
762 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1001 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
763 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1002 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
764 1003
765 if (svp) 1004 if (svp)
766 { 1005 {
767 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1006 SV *ssv;
1007
1008 if (!*svp)
1009 ssv = &PL_sv_undef;
1010 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1011 ssv = sv_2mortal (newRV_inc (*svp));
1012 else
1013 ssv = *svp;
1014
1015 sv_setsv (sv, ssv);
768 return 0; 1016 return 0;
769 } 1017 }
770 } 1018 }
771 1019
772 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1020 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
773} 1021}
774 1022
775static int 1023static int ecb_cold
776coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1024coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
777{ 1025{
778 const char *s = MgPV_nolen_const (mg); 1026 const char *s = MgPV_nolen_const (mg);
779 1027
780 if (*s == '_') 1028 if (*s == '_')
… …
794 } 1042 }
795 1043
796 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1044 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
797} 1045}
798 1046
799static int 1047static int ecb_cold
800coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1048coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
801{ 1049{
802 const char *s = MgPV_nolen_const (mg); 1050 const char *s = MgPV_nolen_const (mg);
803 1051
804 if (*s == '_') 1052 if (*s == '_')
… …
809 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1057 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
810 1058
811 if (svp) 1059 if (svp)
812 { 1060 {
813 SV *old = *svp; 1061 SV *old = *svp;
814 *svp = newSVsv (sv); 1062 *svp = SvOK (sv) ? newSVsv (sv) : 0;
815 SvREFCNT_dec (old); 1063 SvREFCNT_dec (old);
816 return 0; 1064 return 0;
817 } 1065 }
818 } 1066 }
819 1067
… …
831slf_check_nop (pTHX_ struct CoroSLF *frame) 1079slf_check_nop (pTHX_ struct CoroSLF *frame)
832{ 1080{
833 return 0; 1081 return 0;
834} 1082}
835 1083
836static UNOP coro_setup_op; 1084static int
1085slf_check_repeat (pTHX_ struct CoroSLF *frame)
1086{
1087 return 1;
1088}
837 1089
838static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1090static UNOP init_perl_op;
1091
1092ecb_noinline static void /* noinline to keep it out of the transfer fast path */
839coro_setup (pTHX_ struct coro *coro) 1093init_perl (pTHX_ struct coro *coro)
840{ 1094{
841 /* 1095 /*
842 * emulate part of the perl startup here. 1096 * emulate part of the perl startup here.
843 */ 1097 */
844 coro_init_stacks (aTHX); 1098 coro_init_stacks (aTHX);
845 1099
846 PL_runops = RUNOPS_DEFAULT; 1100 PL_runops = RUNOPS_DEFAULT;
847 PL_curcop = &PL_compiling; 1101 PL_curcop = &PL_compiling;
848 PL_in_eval = EVAL_NULL; 1102 PL_in_eval = EVAL_NULL;
849 PL_comppad = 0; 1103 PL_comppad = 0;
1104 PL_comppad_name = 0;
1105 PL_comppad_name_fill = 0;
1106 PL_comppad_name_floor = 0;
850 PL_curpm = 0; 1107 PL_curpm = 0;
851 PL_curpad = 0; 1108 PL_curpad = 0;
852 PL_localizing = 0; 1109 PL_localizing = 0;
853 PL_dirty = 0;
854 PL_restartop = 0; 1110 PL_restartop = 0;
855#if PERL_VERSION_ATLEAST (5,10,0) 1111#if PERL_VERSION_ATLEAST (5,10,0)
856 PL_parser = 0; 1112 PL_parser = 0;
857#endif 1113#endif
1114 PL_hints = 0;
858 1115
859 /* recreate the die/warn hooks */ 1116 /* recreate the die/warn hooks */
860 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1117 PL_diehook = SvREFCNT_inc (rv_diehook);
861 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1118 PL_warnhook = SvREFCNT_inc (rv_warnhook);
862 1119
863 GvSV (PL_defgv) = newSV (0); 1120 GvSV (PL_defgv) = newSV (0);
864 GvAV (PL_defgv) = coro->args; coro->args = 0; 1121 GvAV (PL_defgv) = coro->args; coro->args = 0;
865 GvSV (PL_errgv) = newSV (0); 1122 GvSV (PL_errgv) = newSV (0);
866 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1123 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1124 GvHV (PL_hintgv) = 0;
867 PL_rs = newSVsv (GvSV (irsgv)); 1125 PL_rs = newSVsv (GvSV (irsgv));
868 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1126 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
869 1127
870 { 1128 {
871 dSP; 1129 dSP;
… …
886 /* this newly created coroutine might be run on an existing cctx which most 1144 /* this newly created coroutine might be run on an existing cctx which most
887 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1145 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
888 */ 1146 */
889 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1147 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
890 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1148 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1149 slf_frame.destroy = 0;
891 1150
892 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1151 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
893 coro_setup_op.op_next = PL_op; 1152 init_perl_op.op_next = PL_op;
894 coro_setup_op.op_type = OP_CUSTOM; 1153 init_perl_op.op_type = OP_ENTERSUB;
895 coro_setup_op.op_ppaddr = pp_slf; 1154 init_perl_op.op_ppaddr = pp_slf;
896 /* no flags etc. required, as an init function won't be called */ 1155 /* no flags etc. required, as an init function won't be called */
897 1156
898 PL_op = (OP *)&coro_setup_op; 1157 PL_op = (OP *)&init_perl_op;
899 1158
900 /* copy throw, in case it was set before coro_setup */ 1159 /* copy throw, in case it was set before init_perl */
901 CORO_THROW = coro->except; 1160 CORO_THROW = coro->except;
902}
903 1161
1162 SWAP_SVS (coro);
1163
1164 if (ecb_expect_false (enable_times))
1165 {
1166 coro_times_update ();
1167 coro_times_sub (coro);
1168 }
1169}
1170
904static void 1171static void
905coro_destruct (pTHX_ struct coro *coro) 1172coro_unwind_stacks (pTHX)
906{ 1173{
907 if (!IN_DESTRUCT) 1174 if (!IN_DESTRUCT)
908 { 1175 {
909 /* restore all saved variables and stuff */ 1176 /* restore all saved variables and stuff */
910 LEAVE_SCOPE (0); 1177 LEAVE_SCOPE (0);
… …
918 POPSTACK_TO (PL_mainstack); 1185 POPSTACK_TO (PL_mainstack);
919 1186
920 /* unwind main stack */ 1187 /* unwind main stack */
921 dounwind (-1); 1188 dounwind (-1);
922 } 1189 }
1190}
923 1191
924 SvREFCNT_dec (GvSV (PL_defgv)); 1192static void
925 SvREFCNT_dec (GvAV (PL_defgv)); 1193destroy_perl (pTHX_ struct coro *coro)
926 SvREFCNT_dec (GvSV (PL_errgv)); 1194{
927 SvREFCNT_dec (PL_defoutgv); 1195 SV *svf [9];
928 SvREFCNT_dec (PL_rs);
929 SvREFCNT_dec (GvSV (irsgv));
930 1196
931 SvREFCNT_dec (PL_diehook);
932 SvREFCNT_dec (PL_warnhook);
933 1197 {
1198 SV *old_current = SvRV (coro_current);
1199 struct coro *current = SvSTATE (old_current);
1200
1201 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1202
1203 save_perl (aTHX_ current);
1204
1205 /* this will cause transfer_check to croak on block*/
1206 SvRV_set (coro_current, (SV *)coro->hv);
1207
1208 load_perl (aTHX_ coro);
1209
1210 coro_unwind_stacks (aTHX);
1211
1212 /* restore swapped sv's */
1213 SWAP_SVS (coro);
1214
1215 coro_destruct_stacks (aTHX);
1216
1217 /* now save some sv's to be free'd later */
1218 svf [0] = GvSV (PL_defgv);
1219 svf [1] = (SV *)GvAV (PL_defgv);
1220 svf [2] = GvSV (PL_errgv);
1221 svf [3] = (SV *)PL_defoutgv;
1222 svf [4] = PL_rs;
1223 svf [5] = GvSV (irsgv);
1224 svf [6] = (SV *)GvHV (PL_hintgv);
1225 svf [7] = PL_diehook;
1226 svf [8] = PL_warnhook;
1227 assert (9 == sizeof (svf) / sizeof (*svf));
1228
1229 SvRV_set (coro_current, old_current);
1230
1231 load_perl (aTHX_ current);
1232 }
1233
1234 {
1235 unsigned int i;
1236
1237 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1238 SvREFCNT_dec (svf [i]);
1239
934 SvREFCNT_dec (coro->saved_deffh); 1240 SvREFCNT_dec (coro->saved_deffh);
935 SvREFCNT_dec (coro->rouse_cb); 1241 SvREFCNT_dec (coro->rouse_cb);
936 SvREFCNT_dec (coro->invoke_cb); 1242 SvREFCNT_dec (coro->invoke_cb);
937 SvREFCNT_dec (coro->invoke_av); 1243 SvREFCNT_dec (coro->invoke_av);
938 1244 }
939 coro_destruct_stacks (aTHX);
940} 1245}
941 1246
942INLINE void 1247ecb_inline void
943free_coro_mortal (pTHX) 1248free_coro_mortal (pTHX)
944{ 1249{
945 if (expect_true (coro_mortal)) 1250 if (ecb_expect_true (coro_mortal))
946 { 1251 {
947 SvREFCNT_dec (coro_mortal); 1252 SvREFCNT_dec ((SV *)coro_mortal);
948 coro_mortal = 0; 1253 coro_mortal = 0;
949 } 1254 }
950} 1255}
951 1256
952static int 1257static int
953runops_trace (pTHX) 1258runops_trace (pTHX)
954{ 1259{
955 COP *oldcop = 0; 1260 COP *oldcop = 0;
956 int oldcxix = -2; 1261 int oldcxix = -2;
957 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
958 coro_cctx *cctx = coro->cctx;
959 1262
960 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1263 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
961 { 1264 {
962 PERL_ASYNC_CHECK (); 1265 PERL_ASYNC_CHECK ();
963 1266
964 if (cctx->flags & CC_TRACE_ALL) 1267 if (cctx_current->flags & CC_TRACE_ALL)
965 { 1268 {
966 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1269 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
967 { 1270 {
968 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1271 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
969 SV **bot, **top; 1272 SV **bot, **top;
970 AV *av = newAV (); /* return values */ 1273 AV *av = newAV (); /* return values */
971 SV **cb; 1274 SV **cb;
… …
1008 1311
1009 if (PL_curcop != &PL_compiling) 1312 if (PL_curcop != &PL_compiling)
1010 { 1313 {
1011 SV **cb; 1314 SV **cb;
1012 1315
1013 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1316 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1014 { 1317 {
1015 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1318 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1016 1319
1017 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1320 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1018 { 1321 {
1019 runops_proc_t old_runops = PL_runops;
1020 dSP; 1322 dSP;
1021 GV *gv = CvGV (cx->blk_sub.cv); 1323 GV *gv = CvGV (cx->blk_sub.cv);
1022 SV *fullname = sv_2mortal (newSV (0)); 1324 SV *fullname = sv_2mortal (newSV (0));
1023 1325
1024 if (isGV (gv)) 1326 if (isGV (gv))
… …
1042 } 1344 }
1043 1345
1044 oldcxix = cxstack_ix; 1346 oldcxix = cxstack_ix;
1045 } 1347 }
1046 1348
1047 if (cctx->flags & CC_TRACE_LINE) 1349 if (cctx_current->flags & CC_TRACE_LINE)
1048 { 1350 {
1049 dSP; 1351 dSP;
1050 1352
1051 PL_runops = RUNOPS_DEFAULT; 1353 PL_runops = RUNOPS_DEFAULT;
1052 ENTER; 1354 ENTER;
… …
1071 1373
1072 TAINT_NOT; 1374 TAINT_NOT;
1073 return 0; 1375 return 0;
1074} 1376}
1075 1377
1076static struct coro_cctx *cctx_ssl_cctx;
1077static struct CoroSLF cctx_ssl_frame; 1378static struct CoroSLF cctx_ssl_frame;
1078 1379
1079static void 1380static void
1080slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1381slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1081{ 1382{
1082 ta->prev = (struct coro *)cctx_ssl_cctx;
1083 ta->next = 0; 1383 ta->prev = 0;
1084} 1384}
1085 1385
1086static int 1386static int
1087slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1387slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1088{ 1388{
… …
1090 1390
1091 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1391 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1092} 1392}
1093 1393
1094/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1394/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1095static void NOINLINE 1395static void ecb_noinline
1096cctx_prepare (pTHX_ coro_cctx *cctx) 1396cctx_prepare (pTHX)
1097{ 1397{
1098 PL_top_env = &PL_start_env; 1398 PL_top_env = &PL_start_env;
1099 1399
1100 if (cctx->flags & CC_TRACE) 1400 if (cctx_current->flags & CC_TRACE)
1101 PL_runops = runops_trace; 1401 PL_runops = runops_trace;
1102 1402
1103 /* we already must be executing an SLF op, there is no other valid way 1403 /* we already must be executing an SLF op, there is no other valid way
1104 * that can lead to creation of a new cctx */ 1404 * that can lead to creation of a new cctx */
1105 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1405 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1106 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1406 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1107 1407
1108 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1408 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1109 cctx_ssl_cctx = cctx;
1110 cctx_ssl_frame = slf_frame; 1409 cctx_ssl_frame = slf_frame;
1111 1410
1112 slf_frame.prepare = slf_prepare_set_stacklevel; 1411 slf_frame.prepare = slf_prepare_set_stacklevel;
1113 slf_frame.check = slf_check_set_stacklevel; 1412 slf_frame.check = slf_check_set_stacklevel;
1114} 1413}
1115 1414
1116/* the tail of transfer: execute stuff we can only do after a transfer */ 1415/* the tail of transfer: execute stuff we can only do after a transfer */
1117INLINE void 1416ecb_inline void
1118transfer_tail (pTHX) 1417transfer_tail (pTHX)
1119{ 1418{
1120 free_coro_mortal (aTHX); 1419 free_coro_mortal (aTHX);
1121} 1420}
1122 1421
… …
1137 /* normally we would need to skip the entersub here */ 1436 /* normally we would need to skip the entersub here */
1138 /* not doing so will re-execute it, which is exactly what we want */ 1437 /* not doing so will re-execute it, which is exactly what we want */
1139 /* PL_nop = PL_nop->op_next */ 1438 /* PL_nop = PL_nop->op_next */
1140 1439
1141 /* inject a fake subroutine call to cctx_init */ 1440 /* inject a fake subroutine call to cctx_init */
1142 cctx_prepare (aTHX_ (coro_cctx *)arg); 1441 cctx_prepare (aTHX);
1143 1442
1144 /* cctx_run is the alternative tail of transfer() */ 1443 /* cctx_run is the alternative tail of transfer() */
1145 transfer_tail (aTHX); 1444 transfer_tail (aTHX);
1146 1445
1147 /* somebody or something will hit me for both perl_run and PL_restartop */ 1446 /* somebody or something will hit me for both perl_run and PL_restartop */
1148 PL_restartop = PL_op; 1447 PL_restartop = PL_op;
1149 perl_run (PL_curinterp); 1448 perl_run (PL_curinterp);
1150 /* 1449 /*
1151 * Unfortunately, there is no way to get at the return values of the 1450 * Unfortunately, there is no way to get at the return values of the
1152 * coro body here, as perl_run destroys these 1451 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1452 * runtime errors here, as this is just a random interpreter, not a thread.
1153 */ 1453 */
1154 1454
1155 /* 1455 /*
1156 * If perl-run returns we assume exit() was being called or the coro 1456 * If perl-run returns we assume exit() was being called or the coro
1157 * fell off the end, which seems to be the only valid (non-bug) 1457 * fell off the end, which seems to be the only valid (non-bug)
1158 * reason for perl_run to return. We try to exit by jumping to the 1458 * reason for perl_run to return. We try to exit by jumping to the
1159 * bootstrap-time "top" top_env, as we cannot restore the "main" 1459 * bootstrap-time "top" top_env, as we cannot restore the "main"
1160 * coroutine as Coro has no such concept 1460 * coroutine as Coro has no such concept.
1461 * This actually isn't valid with the pthread backend, but OSes requiring
1462 * that backend are too broken to do it in a standards-compliant way.
1161 */ 1463 */
1162 PL_top_env = main_top_env; 1464 PL_top_env = main_top_env;
1163 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1465 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1164 } 1466 }
1165} 1467}
1166 1468
1167static coro_cctx * 1469static coro_cctx *
1168cctx_new () 1470cctx_new (void)
1169{ 1471{
1170 coro_cctx *cctx; 1472 coro_cctx *cctx;
1171 1473
1172 ++cctx_count; 1474 ++cctx_count;
1173 New (0, cctx, 1, coro_cctx); 1475 New (0, cctx, 1, coro_cctx);
… …
1179 return cctx; 1481 return cctx;
1180} 1482}
1181 1483
1182/* create a new cctx only suitable as source */ 1484/* create a new cctx only suitable as source */
1183static coro_cctx * 1485static coro_cctx *
1184cctx_new_empty () 1486cctx_new_empty (void)
1185{ 1487{
1186 coro_cctx *cctx = cctx_new (); 1488 coro_cctx *cctx = cctx_new ();
1187 1489
1188 cctx->sptr = 0; 1490 cctx->sptr = 0;
1189 coro_create (&cctx->cctx, 0, 0, 0, 0); 1491 coro_create (&cctx->cctx, 0, 0, 0, 0);
… …
1191 return cctx; 1493 return cctx;
1192} 1494}
1193 1495
1194/* create a new cctx suitable as destination/running a perl interpreter */ 1496/* create a new cctx suitable as destination/running a perl interpreter */
1195static coro_cctx * 1497static coro_cctx *
1196cctx_new_run () 1498cctx_new_run (void)
1197{ 1499{
1198 coro_cctx *cctx = cctx_new (); 1500 coro_cctx *cctx = cctx_new ();
1199 void *stack_start; 1501 void *stack_start;
1200 size_t stack_size; 1502 size_t stack_size;
1201 1503
1202#if HAVE_MMAP 1504#if HAVE_MMAP
1203 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1505 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1204 /* mmap supposedly does allocate-on-write for us */ 1506 /* mmap supposedly does allocate-on-write for us */
1205 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1507 cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, 0, 0);
1206 1508
1207 if (cctx->sptr != (void *)-1) 1509 if (cctx->sptr != (void *)-1)
1208 { 1510 {
1209 #if CORO_STACKGUARD 1511 #if CORO_STACKGUARD
1210 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1512 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
… …
1242cctx_destroy (coro_cctx *cctx) 1544cctx_destroy (coro_cctx *cctx)
1243{ 1545{
1244 if (!cctx) 1546 if (!cctx)
1245 return; 1547 return;
1246 1548
1549 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1550
1247 --cctx_count; 1551 --cctx_count;
1248 coro_destroy (&cctx->cctx); 1552 coro_destroy (&cctx->cctx);
1249 1553
1250 /* coro_transfer creates new, empty cctx's */ 1554 /* coro_transfer creates new, empty cctx's */
1251 if (cctx->sptr) 1555 if (cctx->sptr)
… …
1269#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1573#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1270 1574
1271static coro_cctx * 1575static coro_cctx *
1272cctx_get (pTHX) 1576cctx_get (pTHX)
1273{ 1577{
1274 while (expect_true (cctx_first)) 1578 while (ecb_expect_true (cctx_first))
1275 { 1579 {
1276 coro_cctx *cctx = cctx_first; 1580 coro_cctx *cctx = cctx_first;
1277 cctx_first = cctx->next; 1581 cctx_first = cctx->next;
1278 --cctx_idle; 1582 --cctx_idle;
1279 1583
1280 if (expect_true (!CCTX_EXPIRED (cctx))) 1584 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1281 return cctx; 1585 return cctx;
1282 1586
1283 cctx_destroy (cctx); 1587 cctx_destroy (cctx);
1284 } 1588 }
1285 1589
… …
1290cctx_put (coro_cctx *cctx) 1594cctx_put (coro_cctx *cctx)
1291{ 1595{
1292 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1596 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1293 1597
1294 /* free another cctx if overlimit */ 1598 /* free another cctx if overlimit */
1295 if (expect_false (cctx_idle >= cctx_max_idle)) 1599 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1296 { 1600 {
1297 coro_cctx *first = cctx_first; 1601 coro_cctx *first = cctx_first;
1298 cctx_first = first->next; 1602 cctx_first = first->next;
1299 --cctx_idle; 1603 --cctx_idle;
1300 1604
… …
1311static void 1615static void
1312transfer_check (pTHX_ struct coro *prev, struct coro *next) 1616transfer_check (pTHX_ struct coro *prev, struct coro *next)
1313{ 1617{
1314 /* TODO: throwing up here is considered harmful */ 1618 /* TODO: throwing up here is considered harmful */
1315 1619
1316 if (expect_true (prev != next)) 1620 if (ecb_expect_true (prev != next))
1317 { 1621 {
1318 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1622 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1319 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1623 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1320 1624
1321 if (expect_false (next->flags & CF_RUNNING)) 1625 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1322 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1323
1324 if (expect_false (next->flags & CF_DESTROYED))
1325 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1626 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1326 1627
1327#if !PERL_VERSION_ATLEAST (5,10,0) 1628#if !PERL_VERSION_ATLEAST (5,10,0)
1328 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1629 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1329 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1630 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1330#endif 1631#endif
1331 } 1632 }
1332} 1633}
1333 1634
1334/* always use the TRANSFER macro */ 1635/* always use the TRANSFER macro */
1335static void NOINLINE /* noinline so we have a fixed stackframe */ 1636static void ecb_noinline /* noinline so we have a fixed stackframe */
1336transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1637transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1337{ 1638{
1338 dSTACKLEVEL; 1639 dSTACKLEVEL;
1339 1640
1340 /* sometimes transfer is only called to set idle_sp */ 1641 /* sometimes transfer is only called to set idle_sp */
1341 if (expect_false (!next)) 1642 if (ecb_expect_false (!prev))
1342 { 1643 {
1343 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1644 cctx_current->idle_sp = STACKLEVEL;
1344 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1645 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1345 } 1646 }
1346 else if (expect_true (prev != next)) 1647 else if (ecb_expect_true (prev != next))
1347 { 1648 {
1348 coro_cctx *prev__cctx; 1649 coro_cctx *cctx_prev;
1349 1650
1350 if (expect_false (prev->flags & CF_NEW)) 1651 if (ecb_expect_false (prev->flags & CF_NEW))
1351 { 1652 {
1352 /* create a new empty/source context */ 1653 /* create a new empty/source context */
1353 prev->cctx = cctx_new_empty ();
1354 prev->flags &= ~CF_NEW; 1654 prev->flags &= ~CF_NEW;
1355 prev->flags |= CF_RUNNING; 1655 prev->flags |= CF_RUNNING;
1356 } 1656 }
1357 1657
1358 prev->flags &= ~CF_RUNNING; 1658 prev->flags &= ~CF_RUNNING;
1359 next->flags |= CF_RUNNING; 1659 next->flags |= CF_RUNNING;
1360 1660
1361 /* first get rid of the old state */ 1661 /* first get rid of the old state */
1362 save_perl (aTHX_ prev); 1662 save_perl (aTHX_ prev);
1363 1663
1364 if (expect_false (next->flags & CF_NEW)) 1664 if (ecb_expect_false (next->flags & CF_NEW))
1365 { 1665 {
1366 /* need to start coroutine */ 1666 /* need to start coroutine */
1367 next->flags &= ~CF_NEW; 1667 next->flags &= ~CF_NEW;
1368 /* setup coroutine call */ 1668 /* setup coroutine call */
1369 coro_setup (aTHX_ next); 1669 init_perl (aTHX_ next);
1370 } 1670 }
1371 else 1671 else
1372 load_perl (aTHX_ next); 1672 load_perl (aTHX_ next);
1373 1673
1374 prev__cctx = prev->cctx;
1375
1376 /* possibly untie and reuse the cctx */ 1674 /* possibly untie and reuse the cctx */
1377 if (expect_true ( 1675 if (ecb_expect_true (
1378 prev__cctx->idle_sp == STACKLEVEL 1676 cctx_current->idle_sp == STACKLEVEL
1379 && !(prev__cctx->flags & CC_TRACE) 1677 && !(cctx_current->flags & CC_TRACE)
1380 && !force_cctx 1678 && !force_cctx
1381 )) 1679 ))
1382 { 1680 {
1383 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1681 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1384 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1682 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1385 1683
1386 prev->cctx = 0;
1387
1388 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1684 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1389 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1685 /* without this the next cctx_get might destroy the running cctx while still in use */
1390 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1686 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1391 if (!next->cctx) 1687 if (ecb_expect_true (!next->cctx))
1392 next->cctx = cctx_get (aTHX); 1688 next->cctx = cctx_get (aTHX);
1393 1689
1394 cctx_put (prev__cctx); 1690 cctx_put (cctx_current);
1395 } 1691 }
1692 else
1693 prev->cctx = cctx_current;
1396 1694
1397 ++next->usecount; 1695 ++next->usecount;
1398 1696
1399 if (expect_true (!next->cctx)) 1697 cctx_prev = cctx_current;
1400 next->cctx = cctx_get (aTHX); 1698 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1401 1699
1402 if (expect_false (prev__cctx != next->cctx)) 1700 next->cctx = 0;
1701
1702 if (ecb_expect_false (cctx_prev != cctx_current))
1403 { 1703 {
1404 prev__cctx->top_env = PL_top_env; 1704 cctx_prev->top_env = PL_top_env;
1405 PL_top_env = next->cctx->top_env; 1705 PL_top_env = cctx_current->top_env;
1406 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1706 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1407 } 1707 }
1408 1708
1409 transfer_tail (aTHX); 1709 transfer_tail (aTHX);
1410 } 1710 }
1411} 1711}
… …
1413#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1713#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1414#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1714#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1415 1715
1416/** high level stuff ********************************************************/ 1716/** high level stuff ********************************************************/
1417 1717
1718/* this function is actually Coro, not Coro::State, but we call it from here */
1719/* because it is convenient - but it hasn't been declared yet for that reason */
1418static int 1720static void
1721coro_call_on_destroy (pTHX_ struct coro *coro);
1722
1723static void
1419coro_state_destroy (pTHX_ struct coro *coro) 1724coro_state_destroy (pTHX_ struct coro *coro)
1420{ 1725{
1421 if (coro->flags & CF_DESTROYED) 1726 if (coro->flags & CF_ZOMBIE)
1422 return 0; 1727 return;
1423 1728
1424 if (coro->on_destroy)
1425 coro->on_destroy (aTHX_ coro); 1729 slf_destroy (aTHX_ coro);
1426 1730
1427 coro->flags |= CF_DESTROYED; 1731 coro->flags |= CF_ZOMBIE;
1428 1732
1429 if (coro->flags & CF_READY) 1733 if (coro->flags & CF_READY)
1430 { 1734 {
1431 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1735 /* reduce nready, as destroying a ready coro effectively unreadies it */
1432 /* alternative: look through all ready queues and remove the coro */ 1736 /* alternative: look through all ready queues and remove the coro */
1433 --coro_nready; 1737 --coro_nready;
1434 } 1738 }
1435 else 1739 else
1436 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1740 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1437 1741
1438 if (coro->mainstack && coro->mainstack != main_mainstack) 1742 if (coro->next) coro->next->prev = coro->prev;
1439 { 1743 if (coro->prev) coro->prev->next = coro->next;
1440 struct coro temp; 1744 if (coro == coro_first) coro_first = coro->next;
1441 1745
1442 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1746 if (coro->mainstack
1443 1747 && coro->mainstack != main_mainstack
1444 save_perl (aTHX_ &temp); 1748 && coro->slot
1749 && !PL_dirty)
1445 load_perl (aTHX_ coro); 1750 destroy_perl (aTHX_ coro);
1446
1447 coro_destruct (aTHX_ coro);
1448
1449 load_perl (aTHX_ &temp);
1450
1451 coro->slot = 0;
1452 }
1453 1751
1454 cctx_destroy (coro->cctx); 1752 cctx_destroy (coro->cctx);
1455 SvREFCNT_dec (coro->startcv); 1753 SvREFCNT_dec (coro->startcv);
1456 SvREFCNT_dec (coro->args); 1754 SvREFCNT_dec (coro->args);
1755 SvREFCNT_dec (coro->swap_sv);
1457 SvREFCNT_dec (CORO_THROW); 1756 SvREFCNT_dec (CORO_THROW);
1458 1757
1459 if (coro->next) coro->next->prev = coro->prev; 1758 coro_call_on_destroy (aTHX_ coro);
1460 if (coro->prev) coro->prev->next = coro->next;
1461 if (coro == coro_first) coro_first = coro->next;
1462 1759
1463 return 1; 1760 /* more destruction mayhem in coro_state_free */
1464} 1761}
1465 1762
1466static int 1763static int
1467coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1764coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1468{ 1765{
1469 struct coro *coro = (struct coro *)mg->mg_ptr; 1766 struct coro *coro = (struct coro *)mg->mg_ptr;
1470 mg->mg_ptr = 0; 1767 mg->mg_ptr = 0;
1471 1768
1472 coro->hv = 0;
1473
1474 if (--coro->refcnt < 0)
1475 {
1476 coro_state_destroy (aTHX_ coro); 1769 coro_state_destroy (aTHX_ coro);
1770 SvREFCNT_dec (coro->on_destroy);
1771 SvREFCNT_dec (coro->status);
1772
1477 Safefree (coro); 1773 Safefree (coro);
1478 }
1479 1774
1480 return 0; 1775 return 0;
1481} 1776}
1482 1777
1483static int 1778static int ecb_cold
1484coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1779coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1485{ 1780{
1486 struct coro *coro = (struct coro *)mg->mg_ptr; 1781 /* called when perl clones the current process the slow way (windows process emulation) */
1487 1782 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1488 ++coro->refcnt; 1783 mg->mg_ptr = 0;
1784 mg->mg_virtual = 0;
1489 1785
1490 return 0; 1786 return 0;
1491} 1787}
1492 1788
1493static MGVTBL coro_state_vtbl = { 1789static MGVTBL coro_state_vtbl = {
… …
1516 1812
1517 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1813 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1518 TRANSFER (ta, 1); 1814 TRANSFER (ta, 1);
1519} 1815}
1520 1816
1521/*****************************************************************************/
1522/* gensub: simple closure generation utility */
1523
1524#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1525
1526/* create a closure from XS, returns a code reference */
1527/* the arg can be accessed via GENSUB_ARG from the callback */
1528/* the callback must use dXSARGS/XSRETURN */
1529static SV *
1530gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1531{
1532 CV *cv = (CV *)newSV (0);
1533
1534 sv_upgrade ((SV *)cv, SVt_PVCV);
1535
1536 CvANON_on (cv);
1537 CvISXSUB_on (cv);
1538 CvXSUB (cv) = xsub;
1539 GENSUB_ARG = arg;
1540
1541 return newRV_noinc ((SV *)cv);
1542}
1543
1544/** Coro ********************************************************************/ 1817/** Coro ********************************************************************/
1545 1818
1546INLINE void 1819ecb_inline void
1547coro_enq (pTHX_ struct coro *coro) 1820coro_enq (pTHX_ struct coro *coro)
1548{ 1821{
1549 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1822 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1550}
1551 1823
1552INLINE SV * 1824 SvREFCNT_inc_NN (coro->hv);
1825
1826 coro->next_ready = 0;
1827 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1828 ready [1] = coro;
1829}
1830
1831ecb_inline struct coro *
1553coro_deq (pTHX) 1832coro_deq (pTHX)
1554{ 1833{
1555 int prio; 1834 int prio;
1556 1835
1557 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1836 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1558 if (AvFILLp (coro_ready [prio]) >= 0) 1837 {
1559 return av_shift (coro_ready [prio]); 1838 struct coro **ready = coro_ready [prio];
1839
1840 if (ready [0])
1841 {
1842 struct coro *coro = ready [0];
1843 ready [0] = coro->next_ready;
1844 return coro;
1845 }
1846 }
1560 1847
1561 return 0; 1848 return 0;
1849}
1850
1851static void
1852invoke_sv_ready_hook_helper (void)
1853{
1854 dTHX;
1855 dSP;
1856
1857 ENTER;
1858 SAVETMPS;
1859
1860 PUSHMARK (SP);
1861 PUTBACK;
1862 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1863
1864 FREETMPS;
1865 LEAVE;
1562} 1866}
1563 1867
1564static int 1868static int
1565api_ready (pTHX_ SV *coro_sv) 1869api_ready (pTHX_ SV *coro_sv)
1566{ 1870{
1567 struct coro *coro;
1568 SV *sv_hook;
1569 void (*xs_hook)(void);
1570
1571 if (SvROK (coro_sv))
1572 coro_sv = SvRV (coro_sv);
1573
1574 coro = SvSTATE (coro_sv); 1871 struct coro *coro = SvSTATE (coro_sv);
1575 1872
1576 if (coro->flags & CF_READY) 1873 if (coro->flags & CF_READY)
1577 return 0; 1874 return 0;
1578 1875
1579 coro->flags |= CF_READY; 1876 coro->flags |= CF_READY;
1580 1877
1581 sv_hook = coro_nready ? 0 : coro_readyhook;
1582 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1583
1584 coro_enq (aTHX_ coro); 1878 coro_enq (aTHX_ coro);
1585 ++coro_nready;
1586 1879
1587 if (sv_hook) 1880 if (!coro_nready++)
1588 { 1881 if (coroapi.readyhook)
1589 dSP; 1882 coroapi.readyhook ();
1590
1591 ENTER;
1592 SAVETMPS;
1593
1594 PUSHMARK (SP);
1595 PUTBACK;
1596 call_sv (sv_hook, G_VOID | G_DISCARD);
1597
1598 FREETMPS;
1599 LEAVE;
1600 }
1601
1602 if (xs_hook)
1603 xs_hook ();
1604 1883
1605 return 1; 1884 return 1;
1606} 1885}
1607 1886
1608static int 1887static int
1609api_is_ready (pTHX_ SV *coro_sv) 1888api_is_ready (pTHX_ SV *coro_sv)
1610{ 1889{
1611 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1890 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1612} 1891}
1613 1892
1614INLINE void 1893/* expects to own a reference to next->hv */
1894ecb_inline void
1615prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1895prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1616{ 1896{
1617 SV *prev_sv, *next_sv;
1618
1619 for (;;)
1620 {
1621 next_sv = coro_deq (aTHX);
1622
1623 /* nothing to schedule: call the idle handler */
1624 if (expect_false (!next_sv))
1625 {
1626 dSP;
1627
1628 ENTER;
1629 SAVETMPS;
1630
1631 PUSHMARK (SP);
1632 PUTBACK;
1633 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1634
1635 FREETMPS;
1636 LEAVE;
1637 continue;
1638 }
1639
1640 ta->next = SvSTATE_hv (next_sv);
1641
1642 /* cannot transfer to destroyed coros, skip and look for next */
1643 if (expect_false (ta->next->flags & CF_DESTROYED))
1644 {
1645 SvREFCNT_dec (next_sv);
1646 /* coro_nready has already been taken care of by destroy */
1647 continue;
1648 }
1649
1650 --coro_nready;
1651 break;
1652 }
1653
1654 /* free this only after the transfer */
1655 prev_sv = SvRV (coro_current); 1897 SV *prev_sv = SvRV (coro_current);
1898
1656 ta->prev = SvSTATE_hv (prev_sv); 1899 ta->prev = SvSTATE_hv (prev_sv);
1900 ta->next = next;
1901
1657 TRANSFER_CHECK (*ta); 1902 TRANSFER_CHECK (*ta);
1658 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1903
1659 ta->next->flags &= ~CF_READY;
1660 SvRV_set (coro_current, next_sv); 1904 SvRV_set (coro_current, (SV *)next->hv);
1661 1905
1662 free_coro_mortal (aTHX); 1906 free_coro_mortal (aTHX);
1663 coro_mortal = prev_sv; 1907 coro_mortal = prev_sv;
1664} 1908}
1665 1909
1666INLINE void 1910static void
1911prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1912{
1913 for (;;)
1914 {
1915 struct coro *next = coro_deq (aTHX);
1916
1917 if (ecb_expect_true (next))
1918 {
1919 /* cannot transfer to destroyed coros, skip and look for next */
1920 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1921 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1922 else
1923 {
1924 next->flags &= ~CF_READY;
1925 --coro_nready;
1926
1927 prepare_schedule_to (aTHX_ ta, next);
1928 break;
1929 }
1930 }
1931 else
1932 {
1933 /* nothing to schedule: call the idle handler */
1934 if (SvROK (sv_idle)
1935 && SvOBJECT (SvRV (sv_idle)))
1936 {
1937 if (SvRV (sv_idle) == SvRV (coro_current))
1938 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1939
1940 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1941 api_ready (aTHX_ SvRV (sv_idle));
1942 --coro_nready;
1943 }
1944 else
1945 {
1946 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1947 dSP;
1948
1949 ENTER;
1950 SAVETMPS;
1951
1952 PUSHMARK (SP);
1953 PUTBACK;
1954 call_sv (sv_idle, G_VOID | G_DISCARD);
1955
1956 FREETMPS;
1957 LEAVE;
1958 }
1959 }
1960 }
1961}
1962
1963ecb_inline void
1667prepare_cede (pTHX_ struct coro_transfer_args *ta) 1964prepare_cede (pTHX_ struct coro_transfer_args *ta)
1668{ 1965{
1669 api_ready (aTHX_ coro_current); 1966 api_ready (aTHX_ coro_current);
1670 prepare_schedule (aTHX_ ta); 1967 prepare_schedule (aTHX_ ta);
1671} 1968}
1672 1969
1673INLINE void 1970ecb_inline void
1674prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1971prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1675{ 1972{
1676 SV *prev = SvRV (coro_current); 1973 SV *prev = SvRV (coro_current);
1677 1974
1678 if (coro_nready) 1975 if (coro_nready)
… …
1691 1988
1692 prepare_schedule (aTHX_ &ta); 1989 prepare_schedule (aTHX_ &ta);
1693 TRANSFER (ta, 1); 1990 TRANSFER (ta, 1);
1694} 1991}
1695 1992
1993static void
1994api_schedule_to (pTHX_ SV *coro_sv)
1995{
1996 struct coro_transfer_args ta;
1997 struct coro *next = SvSTATE (coro_sv);
1998
1999 SvREFCNT_inc_NN (coro_sv);
2000 prepare_schedule_to (aTHX_ &ta, next);
2001}
2002
1696static int 2003static int
1697api_cede (pTHX) 2004api_cede (pTHX)
1698{ 2005{
1699 struct coro_transfer_args ta; 2006 struct coro_transfer_args ta;
1700 2007
1701 prepare_cede (aTHX_ &ta); 2008 prepare_cede (aTHX_ &ta);
1702 2009
1703 if (expect_true (ta.prev != ta.next)) 2010 if (ecb_expect_true (ta.prev != ta.next))
1704 { 2011 {
1705 TRANSFER (ta, 1); 2012 TRANSFER (ta, 1);
1706 return 1; 2013 return 1;
1707 } 2014 }
1708 else 2015 else
… …
1727static void 2034static void
1728api_trace (pTHX_ SV *coro_sv, int flags) 2035api_trace (pTHX_ SV *coro_sv, int flags)
1729{ 2036{
1730 struct coro *coro = SvSTATE (coro_sv); 2037 struct coro *coro = SvSTATE (coro_sv);
1731 2038
2039 if (coro->flags & CF_RUNNING)
2040 croak ("cannot enable tracing on a running coroutine, caught");
2041
1732 if (flags & CC_TRACE) 2042 if (flags & CC_TRACE)
1733 { 2043 {
1734 if (!coro->cctx) 2044 if (!coro->cctx)
1735 coro->cctx = cctx_new_run (); 2045 coro->cctx = cctx_new_run ();
1736 else if (!(coro->cctx->flags & CC_TRACE)) 2046 else if (!(coro->cctx->flags & CC_TRACE))
1737 croak ("cannot enable tracing on coroutine with custom stack,"); 2047 croak ("cannot enable tracing on coroutine with custom stack, caught");
1738 2048
1739 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2049 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1740 } 2050 }
1741 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2051 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1742 { 2052 {
… …
1747 else 2057 else
1748 coro->slot->runops = RUNOPS_DEFAULT; 2058 coro->slot->runops = RUNOPS_DEFAULT;
1749 } 2059 }
1750} 2060}
1751 2061
2062static void
2063coro_push_av (pTHX_ AV *av, I32 gimme_v)
2064{
2065 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2066 {
2067 dSP;
2068
2069 if (gimme_v == G_SCALAR)
2070 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2071 else
2072 {
2073 int i;
2074 EXTEND (SP, AvFILLp (av) + 1);
2075
2076 for (i = 0; i <= AvFILLp (av); ++i)
2077 PUSHs (AvARRAY (av)[i]);
2078 }
2079
2080 PUTBACK;
2081 }
2082}
2083
2084static void
2085coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2086{
2087 if (!coro->on_destroy)
2088 coro->on_destroy = newAV ();
2089
2090 av_push (coro->on_destroy, cb);
2091}
2092
2093static void
2094slf_destroy_join (pTHX_ struct CoroSLF *frame)
2095{
2096 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2097}
2098
2099static int
2100slf_check_join (pTHX_ struct CoroSLF *frame)
2101{
2102 struct coro *coro = (struct coro *)frame->data;
2103
2104 if (!coro->status)
2105 return 1;
2106
2107 frame->destroy = 0;
2108
2109 coro_push_av (aTHX_ coro->status, GIMME_V);
2110
2111 SvREFCNT_dec ((SV *)coro->hv);
2112
2113 return 0;
2114}
2115
2116static void
2117slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2118{
2119 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2120
2121 if (items > 1)
2122 croak ("join called with too many arguments");
2123
2124 if (coro->status)
2125 frame->prepare = prepare_nop;
2126 else
2127 {
2128 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2129 frame->prepare = prepare_schedule;
2130 }
2131
2132 frame->check = slf_check_join;
2133 frame->destroy = slf_destroy_join;
2134 frame->data = (void *)coro;
2135 SvREFCNT_inc (coro->hv);
2136}
2137
2138static void
2139coro_call_on_destroy (pTHX_ struct coro *coro)
2140{
2141 AV *od = coro->on_destroy;
2142
2143 if (!od)
2144 return;
2145
2146 while (AvFILLp (od) >= 0)
2147 {
2148 SV *cb = sv_2mortal (av_pop (od));
2149
2150 /* coro hv's (and only hv's at the moment) are supported as well */
2151 if (SvSTATEhv_p (aTHX_ cb))
2152 api_ready (aTHX_ cb);
2153 else
2154 {
2155 dSP; /* don't disturb outer sp */
2156 PUSHMARK (SP);
2157
2158 if (coro->status)
2159 {
2160 PUTBACK;
2161 coro_push_av (aTHX_ coro->status, G_ARRAY);
2162 SPAGAIN;
2163 }
2164
2165 PUTBACK;
2166 call_sv (cb, G_VOID | G_DISCARD);
2167 }
2168 }
2169}
2170
2171static void
2172coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2173{
2174 AV *av;
2175
2176 if (coro->status)
2177 {
2178 av = coro->status;
2179 av_clear (av);
2180 }
2181 else
2182 av = coro->status = newAV ();
2183
2184 /* items are actually not so common, so optimise for this case */
2185 if (items)
2186 {
2187 int i;
2188
2189 av_extend (av, items - 1);
2190
2191 for (i = 0; i < items; ++i)
2192 av_push (av, SvREFCNT_inc_NN (arg [i]));
2193 }
2194}
2195
2196static void
2197slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2198{
2199 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2200 api_ready (aTHX_ sv_manager);
2201
2202 frame->prepare = prepare_schedule;
2203 frame->check = slf_check_repeat;
2204
2205 /* as a minor optimisation, we could unwind all stacks here */
2206 /* but that puts extra pressure on pp_slf, and is not worth much */
2207 /*coro_unwind_stacks (aTHX);*/
2208}
2209
2210static void
2211slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2212{
2213 HV *coro_hv = (HV *)SvRV (coro_current);
2214
2215 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2216 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2217}
2218
2219static void
2220slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2221{
2222 HV *coro_hv;
2223 struct coro *coro;
2224
2225 if (items <= 0)
2226 croak ("Coro::cancel called without coro object,");
2227
2228 coro = SvSTATE (arg [0]);
2229 coro_hv = coro->hv;
2230
2231 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2232
2233 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2234 {
2235 /* coro currently busy cancelling something, so just notify it */
2236 coro->slf_frame.data = (void *)coro;
2237
2238 frame->prepare = prepare_nop;
2239 frame->check = slf_check_nop;
2240 }
2241 else if (coro_hv == (HV *)SvRV (coro_current))
2242 {
2243 /* cancelling the current coro is allowed, and equals terminate */
2244 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2245 }
2246 else
2247 {
2248 struct coro *self = SvSTATE_current;
2249
2250 /* otherwise we cancel directly, purely for speed reasons
2251 * unfortunately, this requires some magic trickery, as
2252 * somebody else could cancel us, so we have to fight the cancellation.
2253 * this is ugly, and hopefully fully worth the extra speed.
2254 * besides, I can't get the slow-but-safe version working...
2255 */
2256 slf_frame.data = 0;
2257 self->flags |= CF_NOCANCEL;
2258 coro_state_destroy (aTHX_ coro);
2259 self->flags &= ~CF_NOCANCEL;
2260
2261 if (slf_frame.data)
2262 {
2263 /* while we were busy we have been cancelled, so terminate */
2264 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2265 }
2266 else
2267 {
2268 frame->prepare = prepare_nop;
2269 frame->check = slf_check_nop;
2270 }
2271 }
2272}
2273
2274static int
2275slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2276{
2277 frame->prepare = 0;
2278 coro_unwind_stacks (aTHX);
2279
2280 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2281
2282 return 1;
2283}
2284
2285static int
2286safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2287{
2288 if (coro->cctx)
2289 croak ("coro inside C callback, unable to cancel at this time, caught");
2290
2291 if (coro->flags & CF_NEW)
2292 {
2293 coro_set_status (aTHX_ coro, arg, items);
2294 coro_state_destroy (aTHX_ coro);
2295 }
2296 else
2297 {
2298 if (!coro->slf_frame.prepare)
2299 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2300
2301 slf_destroy (aTHX_ coro);
2302
2303 coro_set_status (aTHX_ coro, arg, items);
2304 coro->slf_frame.prepare = prepare_nop;
2305 coro->slf_frame.check = slf_check_safe_cancel;
2306
2307 api_ready (aTHX_ (SV *)coro->hv);
2308 }
2309
2310 return 1;
2311}
2312
1752/*****************************************************************************/ 2313/*****************************************************************************/
1753/* async pool handler */ 2314/* async pool handler */
1754 2315
1755static int 2316static int
1756slf_check_pool_handler (pTHX_ struct CoroSLF *frame) 2317slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
… …
1760 2321
1761 if (!coro->invoke_cb) 2322 if (!coro->invoke_cb)
1762 return 1; /* loop till we have invoke */ 2323 return 1; /* loop till we have invoke */
1763 else 2324 else
1764 { 2325 {
1765 int i, len;
1766
1767 hv_store (hv, "desc", sizeof ("desc") - 1, 2326 hv_store (hv, "desc", sizeof ("desc") - 1,
1768 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); 2327 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1769 2328
1770 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); 2329 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1771
1772 len = av_len (coro->invoke_av);
1773 2330
1774 { 2331 {
1775 dSP; 2332 dSP;
1776 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; 2333 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1777 PUTBACK; 2334 PUTBACK;
… …
1789slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2346slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1790{ 2347{
1791 HV *hv = (HV *)SvRV (coro_current); 2348 HV *hv = (HV *)SvRV (coro_current);
1792 struct coro *coro = SvSTATE_hv ((SV *)hv); 2349 struct coro *coro = SvSTATE_hv ((SV *)hv);
1793 2350
1794 if (expect_true (coro->saved_deffh)) 2351 if (ecb_expect_true (coro->saved_deffh))
1795 { 2352 {
1796 /* subsequent iteration */ 2353 /* subsequent iteration */
1797 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2354 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1798 coro->saved_deffh = 0; 2355 coro->saved_deffh = 0;
1799 2356
1800 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2357 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1801 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2358 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1802 { 2359 {
1803 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2360 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1804 coro->invoke_av = newAV (); 2361 return;
1805
1806 frame->prepare = prepare_nop;
1807 } 2362 }
1808 else 2363 else
1809 { 2364 {
1810 av_clear (GvAV (PL_defgv)); 2365 av_clear (GvAV (PL_defgv));
1811 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2366 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1836 2391
1837static void 2392static void
1838coro_rouse_callback (pTHX_ CV *cv) 2393coro_rouse_callback (pTHX_ CV *cv)
1839{ 2394{
1840 dXSARGS; 2395 dXSARGS;
1841 SV *data = (SV *)GENSUB_ARG; 2396 SV *data = (SV *)S_GENSUB_ARG;
1842 2397
1843 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2398 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1844 { 2399 {
1845 /* first call, set args */ 2400 /* first call, set args */
1846 int i; 2401 SV *coro = SvRV (data);
1847 AV *av = newAV (); 2402 AV *av = newAV ();
1848 SV *coro = SvRV (data);
1849 2403
1850 SvRV_set (data, (SV *)av); 2404 SvRV_set (data, (SV *)av);
1851 api_ready (aTHX_ coro);
1852 SvREFCNT_dec (coro);
1853 2405
1854 /* better take a full copy of the arguments */ 2406 /* better take a full copy of the arguments */
1855 while (items--) 2407 while (items--)
1856 av_store (av, items, newSVsv (ST (items))); 2408 av_store (av, items, newSVsv (ST (items)));
2409
2410 api_ready (aTHX_ coro);
2411 SvREFCNT_dec (coro);
1857 } 2412 }
1858 2413
1859 XSRETURN_EMPTY; 2414 XSRETURN_EMPTY;
1860} 2415}
1861 2416
… …
1878 2433
1879 EXTEND (SP, AvFILLp (av) + 1); 2434 EXTEND (SP, AvFILLp (av) + 1);
1880 for (i = 0; i <= AvFILLp (av); ++i) 2435 for (i = 0; i <= AvFILLp (av); ++i)
1881 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2436 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1882 2437
1883 /* we have stolen the elements, so ste length to zero and free */ 2438 /* we have stolen the elements, so set length to zero and free */
1884 AvFILLp (av) = -1; 2439 AvFILLp (av) = -1;
1885 av_undef (av); 2440 av_undef (av);
1886 2441
1887 PUTBACK; 2442 PUTBACK;
1888 } 2443 }
… …
1912 || SvTYPE (SvRV (cb)) != SVt_PVCV 2467 || SvTYPE (SvRV (cb)) != SVt_PVCV
1913 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2468 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1914 croak ("Coro::rouse_wait called with illegal callback argument,"); 2469 croak ("Coro::rouse_wait called with illegal callback argument,");
1915 2470
1916 { 2471 {
1917 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2472 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1918 SV *data = (SV *)GENSUB_ARG; 2473 SV *data = (SV *)S_GENSUB_ARG;
1919 2474
1920 frame->data = (void *)data; 2475 frame->data = (void *)data;
1921 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2476 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1922 frame->check = slf_check_rouse_wait; 2477 frame->check = slf_check_rouse_wait;
1923 } 2478 }
… …
1927coro_new_rouse_cb (pTHX) 2482coro_new_rouse_cb (pTHX)
1928{ 2483{
1929 HV *hv = (HV *)SvRV (coro_current); 2484 HV *hv = (HV *)SvRV (coro_current);
1930 struct coro *coro = SvSTATE_hv (hv); 2485 struct coro *coro = SvSTATE_hv (hv);
1931 SV *data = newRV_inc ((SV *)hv); 2486 SV *data = newRV_inc ((SV *)hv);
1932 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2487 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1933 2488
1934 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2489 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1935 SvREFCNT_dec (data); /* magicext increases the refcount */ 2490 SvREFCNT_dec (data); /* magicext increases the refcount */
1936 2491
1937 SvREFCNT_dec (coro->rouse_cb); 2492 SvREFCNT_dec (coro->rouse_cb);
… …
1995 frame->prepare = prepare_schedule; 2550 frame->prepare = prepare_schedule;
1996 frame->check = slf_check_nop; 2551 frame->check = slf_check_nop;
1997} 2552}
1998 2553
1999static void 2554static void
2555slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2556{
2557 struct coro *next = (struct coro *)slf_frame.data;
2558
2559 SvREFCNT_inc_NN (next->hv);
2560 prepare_schedule_to (aTHX_ ta, next);
2561}
2562
2563static void
2564slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2565{
2566 if (!items)
2567 croak ("Coro::schedule_to expects a coroutine argument, caught");
2568
2569 frame->data = (void *)SvSTATE (arg [0]);
2570 frame->prepare = slf_prepare_schedule_to;
2571 frame->check = slf_check_nop;
2572}
2573
2574static void
2575slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2576{
2577 api_ready (aTHX_ SvRV (coro_current));
2578
2579 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2580}
2581
2582static void
2000slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2583slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2001{ 2584{
2002 frame->prepare = prepare_cede; 2585 frame->prepare = prepare_cede;
2003 frame->check = slf_check_nop; 2586 frame->check = slf_check_nop;
2004} 2587}
… …
2006static void 2589static void
2007slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2590slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2008{ 2591{
2009 frame->prepare = prepare_cede_notself; 2592 frame->prepare = prepare_cede_notself;
2010 frame->check = slf_check_nop; 2593 frame->check = slf_check_nop;
2594}
2595
2596/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2597static void
2598slf_destroy (pTHX_ struct coro *coro)
2599{
2600 /* this callback is reserved for slf functions needing to do cleanup */
2601 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2602 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2603
2604 /*
2605 * The on_destroy above most likely is from an SLF call.
2606 * Since by definition the SLF call will not finish when we destroy
2607 * the coro, we will have to force-finish it here, otherwise
2608 * cleanup functions cannot call SLF functions.
2609 */
2610 coro->slf_frame.prepare = 0;
2011} 2611}
2012 2612
2013/* 2613/*
2014 * these not obviously related functions are all rolled into one 2614 * these not obviously related functions are all rolled into one
2015 * function to increase chances that they all will call transfer with the same 2615 * function to increase chances that they all will call transfer with the same
… …
2022 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2622 I32 checkmark; /* mark SP to see how many elements check has pushed */
2023 2623
2024 /* set up the slf frame, unless it has already been set-up */ 2624 /* set up the slf frame, unless it has already been set-up */
2025 /* the latter happens when a new coro has been started */ 2625 /* the latter happens when a new coro has been started */
2026 /* or when a new cctx was attached to an existing coroutine */ 2626 /* or when a new cctx was attached to an existing coroutine */
2027 if (expect_true (!slf_frame.prepare)) 2627 if (ecb_expect_true (!slf_frame.prepare))
2028 { 2628 {
2029 /* first iteration */ 2629 /* first iteration */
2030 dSP; 2630 dSP;
2031 SV **arg = PL_stack_base + TOPMARK + 1; 2631 SV **arg = PL_stack_base + TOPMARK + 1;
2032 int items = SP - arg; /* args without function object */ 2632 int items = SP - arg; /* args without function object */
… …
2073 while (slf_frame.check (aTHX_ &slf_frame)); 2673 while (slf_frame.check (aTHX_ &slf_frame));
2074 2674
2075 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2675 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2076 2676
2077 /* exception handling */ 2677 /* exception handling */
2078 if (expect_false (CORO_THROW)) 2678 if (ecb_expect_false (CORO_THROW))
2079 { 2679 {
2080 SV *exception = sv_2mortal (CORO_THROW); 2680 SV *exception = sv_2mortal (CORO_THROW);
2081 2681
2082 CORO_THROW = 0; 2682 CORO_THROW = 0;
2083 sv_setsv (ERRSV, exception); 2683 sv_setsv (ERRSV, exception);
2084 croak (0); 2684 croak (0);
2085 } 2685 }
2086 2686
2087 /* return value handling - mostly like entersub */ 2687 /* return value handling - mostly like entersub */
2088 /* make sure we put something on the stack in scalar context */ 2688 /* make sure we put something on the stack in scalar context */
2089 if (GIMME_V == G_SCALAR) 2689 if (GIMME_V == G_SCALAR
2690 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2090 { 2691 {
2091 dSP; 2692 dSP;
2092 SV **bot = PL_stack_base + checkmark; 2693 SV **bot = PL_stack_base + checkmark;
2093 2694
2094 if (sp == bot) /* too few, push undef */ 2695 if (sp == bot) /* too few, push undef */
2095 bot [1] = &PL_sv_undef; 2696 bot [1] = &PL_sv_undef;
2096 else if (sp != bot + 1) /* too many, take last one */ 2697 else /* too many, take last one */
2097 bot [1] = *sp; 2698 bot [1] = *sp;
2098 2699
2099 SP = bot + 1; 2700 SP = bot + 1;
2100 2701
2101 PUTBACK; 2702 PUTBACK;
… …
2134 if (PL_op->op_flags & OPf_STACKED) 2735 if (PL_op->op_flags & OPf_STACKED)
2135 { 2736 {
2136 if (items > slf_arga) 2737 if (items > slf_arga)
2137 { 2738 {
2138 slf_arga = items; 2739 slf_arga = items;
2139 free (slf_argv); 2740 Safefree (slf_argv);
2140 slf_argv = malloc (slf_arga * sizeof (SV *)); 2741 New (0, slf_argv, slf_arga, SV *);
2141 } 2742 }
2142 2743
2143 slf_argc = items; 2744 slf_argc = items;
2144 2745
2145 for (i = 0; i < items; ++i) 2746 for (i = 0; i < items; ++i)
… …
2147 } 2748 }
2148 else 2749 else
2149 slf_argc = 0; 2750 slf_argc = 0;
2150 2751
2151 PL_op->op_ppaddr = pp_slf; 2752 PL_op->op_ppaddr = pp_slf;
2152 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2753 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2153 2754
2154 PL_op = (OP *)&slf_restore; 2755 PL_op = (OP *)&slf_restore;
2756}
2757
2758/*****************************************************************************/
2759/* dynamic wind */
2760
2761static void
2762on_enterleave_call (pTHX_ SV *cb)
2763{
2764 dSP;
2765
2766 PUSHSTACK;
2767
2768 PUSHMARK (SP);
2769 PUTBACK;
2770 call_sv (cb, G_VOID | G_DISCARD);
2771 SPAGAIN;
2772
2773 POPSTACK;
2774}
2775
2776static SV *
2777coro_avp_pop_and_free (pTHX_ AV **avp)
2778{
2779 AV *av = *avp;
2780 SV *res = av_pop (av);
2781
2782 if (AvFILLp (av) < 0)
2783 {
2784 *avp = 0;
2785 SvREFCNT_dec (av);
2786 }
2787
2788 return res;
2789}
2790
2791static void
2792coro_pop_on_enter (pTHX_ void *coro)
2793{
2794 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2795 SvREFCNT_dec (cb);
2796}
2797
2798static void
2799coro_pop_on_leave (pTHX_ void *coro)
2800{
2801 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2802 on_enterleave_call (aTHX_ sv_2mortal (cb));
2155} 2803}
2156 2804
2157/*****************************************************************************/ 2805/*****************************************************************************/
2158/* PerlIO::cede */ 2806/* PerlIO::cede */
2159 2807
… …
2161{ 2809{
2162 PerlIOBuf base; 2810 PerlIOBuf base;
2163 NV next, every; 2811 NV next, every;
2164} PerlIOCede; 2812} PerlIOCede;
2165 2813
2166static IV 2814static IV ecb_cold
2167PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2815PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2168{ 2816{
2169 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2817 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2170 2818
2171 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2819 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2172 self->next = nvtime () + self->every; 2820 self->next = nvtime () + self->every;
2173 2821
2174 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2822 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2175} 2823}
2176 2824
2177static SV * 2825static SV * ecb_cold
2178PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2826PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2179{ 2827{
2180 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2828 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2181 2829
2182 return newSVnv (self->every); 2830 return newSVnv (self->every);
… …
2233/* Coro::Semaphore & Coro::Signal */ 2881/* Coro::Semaphore & Coro::Signal */
2234 2882
2235static SV * 2883static SV *
2236coro_waitarray_new (pTHX_ int count) 2884coro_waitarray_new (pTHX_ int count)
2237{ 2885{
2238 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2886 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2239 AV *av = newAV (); 2887 AV *av = newAV ();
2240 SV **ary; 2888 SV **ary;
2241 2889
2242 /* unfortunately, building manually saves memory */ 2890 /* unfortunately, building manually saves memory */
2243 Newx (ary, 2, SV *); 2891 Newx (ary, 2, SV *);
2244 AvALLOC (av) = ary; 2892 AvALLOC (av) = ary;
2893#if PERL_VERSION_ATLEAST (5,10,0)
2245 /*AvARRAY (av) = ary;*/ 2894 AvARRAY (av) = ary;
2895#else
2246 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2896 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2897 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2898 SvPVX ((SV *)av) = (char *)ary;
2899#endif
2247 AvMAX (av) = 1; 2900 AvMAX (av) = 1;
2248 AvFILLp (av) = 0; 2901 AvFILLp (av) = 0;
2249 ary [0] = newSViv (count); 2902 ary [0] = newSViv (count);
2250 2903
2251 return newRV_noinc ((SV *)av); 2904 return newRV_noinc ((SV *)av);
… …
2289 SvREFCNT_dec (cb); 2942 SvREFCNT_dec (cb);
2290 } 2943 }
2291} 2944}
2292 2945
2293static void 2946static void
2294coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2947coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2295{ 2948{
2296 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2949 /* call $sem->adjust (0) to possibly wake up some other waiters */
2297 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2950 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2298} 2951}
2299 2952
2300static int 2953static int
2301slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2954slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2302{ 2955{
2303 AV *av = (AV *)frame->data; 2956 AV *av = (AV *)frame->data;
2304 SV *count_sv = AvARRAY (av)[0]; 2957 SV *count_sv = AvARRAY (av)[0];
2958 SV *coro_hv = SvRV (coro_current);
2305 2959
2306 /* if we are about to throw, don't actually acquire the lock, just throw */ 2960 /* if we are about to throw, don't actually acquire the lock, just throw */
2307 if (CORO_THROW) 2961 if (CORO_THROW)
2308 return 0; 2962 return 0;
2309 else if (SvIVX (count_sv) > 0) 2963 else if (SvIVX (count_sv) > 0)
2310 { 2964 {
2311 SvSTATE_current->on_destroy = 0; 2965 frame->destroy = 0;
2312 2966
2313 if (acquire) 2967 if (acquire)
2314 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2968 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2315 else 2969 else
2316 coro_semaphore_adjust (aTHX_ av, 0); 2970 coro_semaphore_adjust (aTHX_ av, 0);
… …
2321 { 2975 {
2322 int i; 2976 int i;
2323 /* if we were woken up but can't down, we look through the whole */ 2977 /* if we were woken up but can't down, we look through the whole */
2324 /* waiters list and only add us if we aren't in there already */ 2978 /* waiters list and only add us if we aren't in there already */
2325 /* this avoids some degenerate memory usage cases */ 2979 /* this avoids some degenerate memory usage cases */
2326 2980 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2327 for (i = 1; i <= AvFILLp (av); ++i)
2328 if (AvARRAY (av)[i] == SvRV (coro_current)) 2981 if (AvARRAY (av)[i] == coro_hv)
2329 return 1; 2982 return 1;
2330 2983
2331 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2984 av_push (av, SvREFCNT_inc (coro_hv));
2332 return 1; 2985 return 1;
2333 } 2986 }
2334} 2987}
2335 2988
2336static int 2989static int
… …
2359 { 3012 {
2360 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3013 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2361 3014
2362 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3015 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2363 frame->prepare = prepare_schedule; 3016 frame->prepare = prepare_schedule;
2364
2365 /* to avoid race conditions when a woken-up coro gets terminated */ 3017 /* to avoid race conditions when a woken-up coro gets terminated */
2366 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3018 /* we arrange for a temporary on_destroy that calls adjust (0) */
2367 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3019 frame->destroy = coro_semaphore_destroy;
2368 } 3020 }
2369} 3021}
2370 3022
2371static void 3023static void
2372slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3024slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2380{ 3032{
2381 if (items >= 2) 3033 if (items >= 2)
2382 { 3034 {
2383 /* callback form */ 3035 /* callback form */
2384 AV *av = (AV *)SvRV (arg [0]); 3036 AV *av = (AV *)SvRV (arg [0]);
2385 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3037 SV *cb_cv = s_get_cv_croak (arg [1]);
2386 3038
2387 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3039 av_push (av, SvREFCNT_inc_NN (cb_cv));
2388 3040
2389 if (SvIVX (AvARRAY (av)[0]) > 0) 3041 if (SvIVX (AvARRAY (av)[0]) > 0)
2390 coro_semaphore_adjust (aTHX_ av, 0); 3042 coro_semaphore_adjust (aTHX_ av, 0);
2391 3043
2392 frame->prepare = prepare_nop; 3044 frame->prepare = prepare_nop;
… …
2416 AvARRAY (av)[0] = AvARRAY (av)[1]; 3068 AvARRAY (av)[0] = AvARRAY (av)[1];
2417 AvARRAY (av)[1] = cb; 3069 AvARRAY (av)[1] = cb;
2418 3070
2419 cb = av_shift (av); 3071 cb = av_shift (av);
2420 3072
3073 if (SvTYPE (cb) == SVt_PVCV)
3074 {
3075 dSP;
3076 PUSHMARK (SP);
3077 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3078 PUTBACK;
3079 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3080 }
3081 else
3082 {
2421 api_ready (aTHX_ cb); 3083 api_ready (aTHX_ cb);
2422 sv_setiv (cb, 0); /* signal waiter */ 3084 sv_setiv (cb, 0); /* signal waiter */
3085 }
3086
2423 SvREFCNT_dec (cb); 3087 SvREFCNT_dec (cb);
2424 3088
2425 --count; 3089 --count;
2426 } 3090 }
2427} 3091}
… …
2436static void 3100static void
2437slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3101slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2438{ 3102{
2439 AV *av = (AV *)SvRV (arg [0]); 3103 AV *av = (AV *)SvRV (arg [0]);
2440 3104
3105 if (items >= 2)
3106 {
3107 SV *cb_cv = s_get_cv_croak (arg [1]);
3108 av_push (av, SvREFCNT_inc_NN (cb_cv));
3109
2441 if (SvIVX (AvARRAY (av)[0])) 3110 if (SvIVX (AvARRAY (av)[0]))
3111 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3112
3113 frame->prepare = prepare_nop;
3114 frame->check = slf_check_nop;
3115 }
3116 else if (SvIVX (AvARRAY (av)[0]))
2442 { 3117 {
2443 SvIVX (AvARRAY (av)[0]) = 0; 3118 SvIVX (AvARRAY (av)[0]) = 0;
2444 frame->prepare = prepare_nop; 3119 frame->prepare = prepare_nop;
2445 frame->check = slf_check_nop; 3120 frame->check = slf_check_nop;
2446 } 3121 }
2447 else 3122 else
2448 { 3123 {
2449 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3124 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2450 3125
2451 av_push (av, waiter); 3126 av_push (av, waiter);
2452 3127
2453 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3128 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2454 frame->prepare = prepare_schedule; 3129 frame->prepare = prepare_schedule;
… …
2472 3147
2473static void 3148static void
2474coro_aio_callback (pTHX_ CV *cv) 3149coro_aio_callback (pTHX_ CV *cv)
2475{ 3150{
2476 dXSARGS; 3151 dXSARGS;
2477 AV *state = (AV *)GENSUB_ARG; 3152 AV *state = (AV *)S_GENSUB_ARG;
2478 SV *coro = av_pop (state); 3153 SV *coro = av_pop (state);
2479 SV *data_sv = newSV (sizeof (struct io_state)); 3154 SV *data_sv = newSV (sizeof (struct io_state));
2480 3155
2481 av_extend (state, items - 1); 3156 av_extend (state, items - 1);
2482 3157
… …
2567 dSP; 3242 dSP;
2568 3243
2569 static SV *prio_cv; 3244 static SV *prio_cv;
2570 static SV *prio_sv; 3245 static SV *prio_sv;
2571 3246
2572 if (expect_false (!prio_cv)) 3247 if (ecb_expect_false (!prio_cv))
2573 { 3248 {
2574 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3249 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2575 prio_sv = newSViv (0); 3250 prio_sv = newSViv (0);
2576 } 3251 }
2577 3252
… …
2596 3271
2597 for (i = 0; i < items; ++i) 3272 for (i = 0; i < items; ++i)
2598 PUSHs (arg [i]); 3273 PUSHs (arg [i]);
2599 3274
2600 /* now push the callback closure */ 3275 /* now push the callback closure */
2601 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3276 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2602 3277
2603 /* now call the AIO function - we assume our request is uncancelable */ 3278 /* now call the AIO function - we assume our request is uncancelable */
2604 PUTBACK; 3279 PUTBACK;
2605 call_sv ((SV *)req, G_VOID | G_DISCARD); 3280 call_sv ((SV *)req, G_VOID | G_DISCARD);
2606 } 3281 }
2607 3282
2608 /* now that the requets is going, we loop toll we have a result */ 3283 /* now that the request is going, we loop till we have a result */
2609 frame->data = (void *)state; 3284 frame->data = (void *)state;
2610 frame->prepare = prepare_schedule; 3285 frame->prepare = prepare_schedule;
2611 frame->check = slf_check_aio_req; 3286 frame->check = slf_check_aio_req;
2612} 3287}
2613 3288
… …
2620 3295
2621 XSRETURN_EMPTY; 3296 XSRETURN_EMPTY;
2622} 3297}
2623 3298
2624/*****************************************************************************/ 3299/*****************************************************************************/
3300
3301#if CORO_CLONE
3302# include "clone.c"
3303#endif
3304
3305/*****************************************************************************/
3306
3307static SV *
3308coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3309{
3310 SV *coro_sv;
3311 struct coro *coro;
3312 MAGIC *mg;
3313 HV *hv;
3314 SV *cb;
3315 int i;
3316
3317 if (argc > 0)
3318 {
3319 cb = s_get_cv_croak (argv [0]);
3320
3321 if (!is_coro)
3322 {
3323 if (CvISXSUB (cb))
3324 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3325
3326 if (!CvROOT (cb))
3327 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3328 }
3329 }
3330
3331 Newz (0, coro, 1, struct coro);
3332 coro->args = newAV ();
3333 coro->flags = CF_NEW;
3334
3335 if (coro_first) coro_first->prev = coro;
3336 coro->next = coro_first;
3337 coro_first = coro;
3338
3339 coro->hv = hv = newHV ();
3340 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3341 mg->mg_flags |= MGf_DUP;
3342 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3343
3344 if (argc > 0)
3345 {
3346 av_extend (coro->args, argc + is_coro - 1);
3347
3348 if (is_coro)
3349 {
3350 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3351 cb = (SV *)cv_coro_run;
3352 }
3353
3354 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3355
3356 for (i = 1; i < argc; i++)
3357 av_push (coro->args, newSVsv (argv [i]));
3358 }
3359
3360 return coro_sv;
3361}
3362
3363#ifndef __cplusplus
3364ecb_cold XS(boot_Coro__State);
3365#endif
3366
3367#if CORO_JIT
3368
3369static void ecb_noinline ecb_cold
3370pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3371{
3372 dSP;
3373 AV *av = newAV ();
3374
3375 av_store (av, 3, newSVuv (d));
3376 av_store (av, 2, newSVuv (c));
3377 av_store (av, 1, newSVuv (b));
3378 av_store (av, 0, newSVuv (a));
3379
3380 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3381
3382 PUTBACK;
3383}
3384
3385static void ecb_noinline ecb_cold
3386jit_init (pTHX)
3387{
3388 dSP;
3389 SV *load, *save;
3390 char *map_base;
3391 char *load_ptr, *save_ptr;
3392 STRLEN load_len, save_len, map_len;
3393 int count;
3394
3395 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3396
3397 PUSHMARK (SP);
3398#define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3399# include "state.h"
3400#undef VARx
3401 count = call_pv ("Coro::State::_jit", G_ARRAY);
3402 SPAGAIN;
3403
3404 save = POPs; save_ptr = SvPVbyte (save, save_len);
3405 load = POPs; load_ptr = SvPVbyte (load, load_len);
3406
3407 map_len = load_len + save_len + 16;
3408
3409 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3410
3411 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3412
3413 load_perl_slots = (load_save_perl_slots_type)map_base;
3414 memcpy (map_base, load_ptr, load_len);
3415
3416 map_base += (load_len + 15) & ~15;
3417
3418 save_perl_slots = (load_save_perl_slots_type)map_base;
3419 memcpy (map_base, save_ptr, save_len);
3420
3421 /* we are good citizens and try to make the page read-only, so the evil evil */
3422 /* hackers might have it a bit more difficult */
3423 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3424
3425 PUTBACK;
3426 eval_pv ("undef &Coro::State::_jit", 1);
3427}
3428
3429#endif
2625 3430
2626MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3431MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2627 3432
2628PROTOTYPES: DISABLE 3433PROTOTYPES: DISABLE
2629 3434
… …
2634 coro_thx = PERL_GET_CONTEXT; 3439 coro_thx = PERL_GET_CONTEXT;
2635# endif 3440# endif
2636#endif 3441#endif
2637 BOOT_PAGESIZE; 3442 BOOT_PAGESIZE;
2638 3443
3444 /* perl defines these to check for existance first, but why it doesn't */
3445 /* just create them one at init time is not clear to me, except for */
3446 /* programs trying to delete them, but... */
3447 /* anyway, we declare this as invalid and make sure they are initialised here */
3448 DEFSV;
3449 ERRSV;
3450
3451 cctx_current = cctx_new_empty ();
3452
2639 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3453 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2640 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3454 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2641 3455
2642 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3456 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2643 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3457 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2662 3476
2663 { 3477 {
2664 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3478 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2665 3479
2666 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3480 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2667 hv_store_ent (PL_custom_op_names, slf, 3481 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2668 newSVpv ("coro_slf", 0), 0);
2669 3482
2670 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3483 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2671 hv_store_ent (PL_custom_op_descs, slf, 3484 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2672 newSVpv ("coro schedule like function", 0), 0);
2673 } 3485 }
2674 3486
2675 coroapi.ver = CORO_API_VERSION; 3487 coroapi.ver = CORO_API_VERSION;
2676 coroapi.rev = CORO_API_REVISION; 3488 coroapi.rev = CORO_API_REVISION;
2677 3489
… …
2682 coroapi.prepare_nop = prepare_nop; 3494 coroapi.prepare_nop = prepare_nop;
2683 coroapi.prepare_schedule = prepare_schedule; 3495 coroapi.prepare_schedule = prepare_schedule;
2684 coroapi.prepare_cede = prepare_cede; 3496 coroapi.prepare_cede = prepare_cede;
2685 coroapi.prepare_cede_notself = prepare_cede_notself; 3497 coroapi.prepare_cede_notself = prepare_cede_notself;
2686 3498
2687 { 3499 time_init (aTHX);
2688 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2689 3500
2690 if (!svp) croak ("Time::HiRes is required");
2691 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2692
2693 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2694 }
2695
2696 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3501 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3502#if CORO_JIT
3503 PUTBACK;
3504 jit_init (aTHX);
3505 SPAGAIN;
3506#endif
2697} 3507}
2698 3508
2699SV * 3509SV *
2700new (char *klass, ...) 3510new (SV *klass, ...)
2701 ALIAS: 3511 ALIAS:
2702 Coro::new = 1 3512 Coro::new = 1
2703 CODE: 3513 CODE:
2704{ 3514 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2705 struct coro *coro; 3515 OUTPUT:
2706 MAGIC *mg;
2707 HV *hv;
2708 CV *cb;
2709 int i;
2710
2711 if (items > 1)
2712 {
2713 cb = coro_sv_2cv (aTHX_ ST (1));
2714
2715 if (!ix)
2716 {
2717 if (CvISXSUB (cb))
2718 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2719
2720 if (!CvROOT (cb))
2721 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2722 }
2723 }
2724
2725 Newz (0, coro, 1, struct coro);
2726 coro->args = newAV ();
2727 coro->flags = CF_NEW;
2728
2729 if (coro_first) coro_first->prev = coro;
2730 coro->next = coro_first;
2731 coro_first = coro;
2732
2733 coro->hv = hv = newHV ();
2734 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2735 mg->mg_flags |= MGf_DUP;
2736 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2737
2738 if (items > 1)
2739 {
2740 av_extend (coro->args, items - 1 + ix - 1);
2741
2742 if (ix)
2743 {
2744 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2745 cb = cv_coro_run;
2746 }
2747
2748 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2749
2750 for (i = 2; i < items; i++)
2751 av_push (coro->args, newSVsv (ST (i)));
2752 }
2753}
2754 OUTPUT:
2755 RETVAL 3516 RETVAL
2756 3517
2757void 3518void
2758transfer (...) 3519transfer (...)
2759 PROTOTYPE: $$ 3520 PROTOTYPE: $$
2760 CODE: 3521 CODE:
2761 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3522 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2762 3523
2763bool
2764_destroy (SV *coro_sv)
2765 CODE:
2766 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2767 OUTPUT:
2768 RETVAL
2769
2770void 3524void
2771_exit (int code) 3525_exit (int code)
2772 PROTOTYPE: $ 3526 PROTOTYPE: $
2773 CODE: 3527 CODE:
2774 _exit (code); 3528 _exit (code);
3529
3530SV *
3531clone (Coro::State coro)
3532 CODE:
3533{
3534#if CORO_CLONE
3535 struct coro *ncoro = coro_clone (aTHX_ coro);
3536 MAGIC *mg;
3537 /* TODO: too much duplication */
3538 ncoro->hv = newHV ();
3539 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3540 mg->mg_flags |= MGf_DUP;
3541 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3542#else
3543 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3544#endif
3545}
3546 OUTPUT:
3547 RETVAL
2775 3548
2776int 3549int
2777cctx_stacksize (int new_stacksize = 0) 3550cctx_stacksize (int new_stacksize = 0)
2778 PROTOTYPE: ;$ 3551 PROTOTYPE: ;$
2779 CODE: 3552 CODE:
… …
2829 eval = 1 3602 eval = 1
2830 CODE: 3603 CODE:
2831{ 3604{
2832 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3605 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2833 { 3606 {
2834 struct coro temp; 3607 struct coro *current = SvSTATE_current;
3608 struct CoroSLF slf_save;
2835 3609
2836 if (!(coro->flags & CF_RUNNING)) 3610 if (current != coro)
2837 { 3611 {
2838 PUTBACK; 3612 PUTBACK;
2839 save_perl (aTHX_ &temp); 3613 save_perl (aTHX_ current);
2840 load_perl (aTHX_ coro); 3614 load_perl (aTHX_ coro);
3615 /* the coro is most likely in an active SLF call.
3616 * while not strictly required (the code we execute is
3617 * not allowed to call any SLF functions), it's cleaner
3618 * to reinitialise the slf_frame and restore it later.
3619 * This might one day allow us to actually do SLF calls
3620 * from code executed here.
3621 */
3622 slf_save = slf_frame;
3623 slf_frame.prepare = 0;
3624 SPAGAIN;
2841 } 3625 }
2842 3626
2843 {
2844 dSP;
2845 ENTER;
2846 SAVETMPS;
2847 PUTBACK;
2848 PUSHSTACK; 3627 PUSHSTACK;
3628
2849 PUSHMARK (SP); 3629 PUSHMARK (SP);
3630 PUTBACK;
2850 3631
2851 if (ix) 3632 if (ix)
2852 eval_sv (coderef, 0); 3633 eval_sv (coderef, 0);
2853 else 3634 else
2854 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3635 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2855 3636
2856 POPSTACK; 3637 POPSTACK;
2857 SPAGAIN; 3638 SPAGAIN;
2858 FREETMPS;
2859 LEAVE;
2860 PUTBACK;
2861 }
2862 3639
2863 if (!(coro->flags & CF_RUNNING)) 3640 if (current != coro)
2864 { 3641 {
3642 PUTBACK;
3643 slf_frame = slf_save;
2865 save_perl (aTHX_ coro); 3644 save_perl (aTHX_ coro);
2866 load_perl (aTHX_ &temp); 3645 load_perl (aTHX_ current);
2867 SPAGAIN; 3646 SPAGAIN;
2868 } 3647 }
2869 } 3648 }
2870} 3649}
2871 3650
… …
2874 PROTOTYPE: $ 3653 PROTOTYPE: $
2875 ALIAS: 3654 ALIAS:
2876 is_ready = CF_READY 3655 is_ready = CF_READY
2877 is_running = CF_RUNNING 3656 is_running = CF_RUNNING
2878 is_new = CF_NEW 3657 is_new = CF_NEW
2879 is_destroyed = CF_DESTROYED 3658 is_destroyed = CF_ZOMBIE
3659 is_zombie = CF_ZOMBIE
3660 is_suspended = CF_SUSPENDED
2880 CODE: 3661 CODE:
2881 RETVAL = boolSV (coro->flags & ix); 3662 RETVAL = boolSV (coro->flags & ix);
2882 OUTPUT: 3663 OUTPUT:
2883 RETVAL 3664 RETVAL
2884 3665
2885void 3666void
2886throw (Coro::State self, SV *throw = &PL_sv_undef) 3667throw (Coro::State self, SV *exception = &PL_sv_undef)
2887 PROTOTYPE: $;$ 3668 PROTOTYPE: $;$
2888 CODE: 3669 CODE:
2889{ 3670{
2890 struct coro *current = SvSTATE_current; 3671 struct coro *current = SvSTATE_current;
2891 SV **throwp = self == current ? &CORO_THROW : &self->except; 3672 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
2892 SvREFCNT_dec (*throwp); 3673 SvREFCNT_dec (*exceptionp);
2893 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3674 SvGETMAGIC (exception);
3675 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
2894} 3676}
2895 3677
2896void 3678void
2897api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3679api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2898 PROTOTYPE: $;$ 3680 PROTOTYPE: $;$
… …
2900 3682
2901SV * 3683SV *
2902has_cctx (Coro::State coro) 3684has_cctx (Coro::State coro)
2903 PROTOTYPE: $ 3685 PROTOTYPE: $
2904 CODE: 3686 CODE:
2905 RETVAL = boolSV (!!coro->cctx); 3687 /* maybe manage the running flag differently */
3688 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2906 OUTPUT: 3689 OUTPUT:
2907 RETVAL 3690 RETVAL
2908 3691
2909int 3692int
2910is_traced (Coro::State coro) 3693is_traced (Coro::State coro)
… …
2930 3713
2931void 3714void
2932force_cctx () 3715force_cctx ()
2933 PROTOTYPE: 3716 PROTOTYPE:
2934 CODE: 3717 CODE:
2935 SvSTATE_current->cctx->idle_sp = 0; 3718 cctx_current->idle_sp = 0;
2936 3719
2937void 3720void
2938swap_defsv (Coro::State self) 3721swap_defsv (Coro::State self)
2939 PROTOTYPE: $ 3722 PROTOTYPE: $
2940 ALIAS: 3723 ALIAS:
… …
2948 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3731 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2949 3732
2950 SV *tmp = *src; *src = *dst; *dst = tmp; 3733 SV *tmp = *src; *src = *dst; *dst = tmp;
2951 } 3734 }
2952 3735
3736void
3737cancel (Coro::State self)
3738 CODE:
3739 coro_state_destroy (aTHX_ self);
3740
3741SV *
3742enable_times (int enabled = enable_times)
3743 CODE:
3744{
3745 RETVAL = boolSV (enable_times);
3746
3747 if (enabled != enable_times)
3748 {
3749 enable_times = enabled;
3750
3751 coro_times_update ();
3752 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3753 }
3754}
3755 OUTPUT:
3756 RETVAL
3757
3758void
3759times (Coro::State self)
3760 PPCODE:
3761{
3762 struct coro *current = SvSTATE (coro_current);
3763
3764 if (ecb_expect_false (current == self))
3765 {
3766 coro_times_update ();
3767 coro_times_add (SvSTATE (coro_current));
3768 }
3769
3770 EXTEND (SP, 2);
3771 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3772 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3773
3774 if (ecb_expect_false (current == self))
3775 coro_times_sub (SvSTATE (coro_current));
3776}
3777
3778void
3779swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3780 CODE:
3781{
3782 struct coro *current = SvSTATE_current;
3783
3784 if (current == coro)
3785 SWAP_SVS (current);
3786
3787 if (!coro->swap_sv)
3788 coro->swap_sv = newAV ();
3789
3790 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3791 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3792
3793 if (current == coro)
3794 SWAP_SVS (current);
3795}
3796
2953 3797
2954MODULE = Coro::State PACKAGE = Coro 3798MODULE = Coro::State PACKAGE = Coro
2955 3799
2956BOOT: 3800BOOT:
2957{ 3801{
2958 int i;
2959
2960 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2961 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3802 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2962 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3803 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2963 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3804 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2964 cv_coro_terminate = get_cv ( "Coro::terminate", GV_ADD);
2965 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); 3805 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2966 SvREADONLY_on (coro_current); 3806 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3807 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3808 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3809 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2967 3810
2968 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3811 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
2969 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3812 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
2970 cv_pool_handler = get_cv ("Coro::_pool_handler", 0); SvREADONLY_on (cv_pool_handler); 3813 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
2971 cv_coro_new = get_cv ("Coro::new", 0); SvREADONLY_on (cv_coro_new); 3814 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
2972 3815
2973 coro_stash = gv_stashpv ("Coro", TRUE); 3816 coro_stash = gv_stashpv ("Coro", TRUE);
2974 3817
2975 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3818 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2976 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3819 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2977 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3820 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2978 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3821 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2979 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3822 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2980 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3823 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2981
2982 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2983 coro_ready[i] = newAV ();
2984 3824
2985 { 3825 {
2986 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3826 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2987 3827
2988 coroapi.schedule = api_schedule; 3828 coroapi.schedule = api_schedule;
3829 coroapi.schedule_to = api_schedule_to;
2989 coroapi.cede = api_cede; 3830 coroapi.cede = api_cede;
2990 coroapi.cede_notself = api_cede_notself; 3831 coroapi.cede_notself = api_cede_notself;
2991 coroapi.ready = api_ready; 3832 coroapi.ready = api_ready;
2992 coroapi.is_ready = api_is_ready; 3833 coroapi.is_ready = api_is_ready;
2993 coroapi.nready = coro_nready; 3834 coroapi.nready = coro_nready;
… …
2997 sv_setiv (sv, (IV)&coroapi); 3838 sv_setiv (sv, (IV)&coroapi);
2998 SvREADONLY_on (sv); 3839 SvREADONLY_on (sv);
2999 } 3840 }
3000} 3841}
3001 3842
3843SV *
3844async (...)
3845 PROTOTYPE: &@
3846 CODE:
3847 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3848 api_ready (aTHX_ RETVAL);
3849 OUTPUT:
3850 RETVAL
3851
3852void
3853_destroy (Coro::State coro)
3854 CODE:
3855 /* used by the manager thread */
3856 coro_state_destroy (aTHX_ coro);
3857
3858void
3859on_destroy (Coro::State coro, SV *cb)
3860 CODE:
3861 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3862
3863void
3864join (...)
3865 CODE:
3866 CORO_EXECUTE_SLF_XS (slf_init_join);
3867
3868void
3869terminate (...)
3870 CODE:
3871 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3872
3873void
3874cancel (...)
3875 CODE:
3876 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3877
3878int
3879safe_cancel (Coro::State self, ...)
3880 C_ARGS: aTHX_ self, &ST (1), items - 1
3881
3002void 3882void
3003schedule (...) 3883schedule (...)
3004 CODE: 3884 CODE:
3005 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3885 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3886
3887void
3888schedule_to (...)
3889 CODE:
3890 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3891
3892void
3893cede_to (...)
3894 CODE:
3895 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3006 3896
3007void 3897void
3008cede (...) 3898cede (...)
3009 CODE: 3899 CODE:
3010 CORO_EXECUTE_SLF_XS (slf_init_cede); 3900 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
3024void 3914void
3025_set_readyhook (SV *hook) 3915_set_readyhook (SV *hook)
3026 PROTOTYPE: $ 3916 PROTOTYPE: $
3027 CODE: 3917 CODE:
3028 SvREFCNT_dec (coro_readyhook); 3918 SvREFCNT_dec (coro_readyhook);
3919 SvGETMAGIC (hook);
3920 if (SvOK (hook))
3921 {
3029 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3922 coro_readyhook = newSVsv (hook);
3923 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3924 }
3925 else
3926 {
3927 coro_readyhook = 0;
3928 CORO_READYHOOK = 0;
3929 }
3030 3930
3031int 3931int
3032prio (Coro::State coro, int newprio = 0) 3932prio (Coro::State coro, int newprio = 0)
3033 PROTOTYPE: $;$ 3933 PROTOTYPE: $;$
3034 ALIAS: 3934 ALIAS:
… …
3040 if (items > 1) 3940 if (items > 1)
3041 { 3941 {
3042 if (ix) 3942 if (ix)
3043 newprio = coro->prio - newprio; 3943 newprio = coro->prio - newprio;
3044 3944
3045 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3945 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3046 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3946 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3047 3947
3048 coro->prio = newprio; 3948 coro->prio = newprio;
3049 } 3949 }
3050} 3950}
3051 OUTPUT: 3951 OUTPUT:
… …
3066 RETVAL = coro_nready; 3966 RETVAL = coro_nready;
3067 OUTPUT: 3967 OUTPUT:
3068 RETVAL 3968 RETVAL
3069 3969
3070void 3970void
3971suspend (Coro::State self)
3972 PROTOTYPE: $
3973 CODE:
3974 self->flags |= CF_SUSPENDED;
3975
3976void
3977resume (Coro::State self)
3978 PROTOTYPE: $
3979 CODE:
3980 self->flags &= ~CF_SUSPENDED;
3981
3982void
3071_pool_handler (...) 3983_pool_handler (...)
3072 CODE: 3984 CODE:
3073 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3985 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3074 3986
3075void 3987void
… …
3086 for (i = 1; i < items; ++i) 3998 for (i = 1; i < items; ++i)
3087 av_push (av, SvREFCNT_inc_NN (ST (i))); 3999 av_push (av, SvREFCNT_inc_NN (ST (i)));
3088 4000
3089 if ((SV *)hv == &PL_sv_undef) 4001 if ((SV *)hv == &PL_sv_undef)
3090 { 4002 {
3091 PUSHMARK (SP); 4003 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3092 EXTEND (SP, 2);
3093 PUSHs (sv_Coro);
3094 PUSHs ((SV *)cv_pool_handler);
3095 PUTBACK;
3096 call_sv (cv_coro_new, G_SCALAR);
3097 SPAGAIN;
3098
3099 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4004 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4005 SvREFCNT_dec (sv);
3100 } 4006 }
3101 4007
3102 { 4008 {
3103 struct coro *coro = SvSTATE_hv (hv); 4009 struct coro *coro = SvSTATE_hv (hv);
3104 4010
… …
3106 assert (!coro->invoke_av); 4012 assert (!coro->invoke_av);
3107 coro->invoke_cb = SvREFCNT_inc (cb); 4013 coro->invoke_cb = SvREFCNT_inc (cb);
3108 coro->invoke_av = av; 4014 coro->invoke_av = av;
3109 } 4015 }
3110 4016
3111 api_ready ((SV *)hv); 4017 api_ready (aTHX_ (SV *)hv);
3112 4018
3113 if (GIMME_V != G_VOID) 4019 if (GIMME_V != G_VOID)
3114 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); 4020 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3115 else 4021 else
3116 SvREFCNT_dec (hv); 4022 SvREFCNT_dec (hv);
… …
3128rouse_wait (...) 4034rouse_wait (...)
3129 PROTOTYPE: ;$ 4035 PROTOTYPE: ;$
3130 PPCODE: 4036 PPCODE:
3131 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4037 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3132 4038
4039void
4040on_enter (SV *block)
4041 ALIAS:
4042 on_leave = 1
4043 PROTOTYPE: &
4044 CODE:
4045{
4046 struct coro *coro = SvSTATE_current;
4047 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4048
4049 block = s_get_cv_croak (block);
4050
4051 if (!*avp)
4052 *avp = newAV ();
4053
4054 av_push (*avp, SvREFCNT_inc (block));
4055
4056 if (!ix)
4057 on_enterleave_call (aTHX_ block);
4058
4059 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4060 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4061 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4062}
4063
3133 4064
3134MODULE = Coro::State PACKAGE = PerlIO::cede 4065MODULE = Coro::State PACKAGE = PerlIO::cede
3135 4066
3136BOOT: 4067BOOT:
3137 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4068 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3140MODULE = Coro::State PACKAGE = Coro::Semaphore 4071MODULE = Coro::State PACKAGE = Coro::Semaphore
3141 4072
3142SV * 4073SV *
3143new (SV *klass, SV *count = 0) 4074new (SV *klass, SV *count = 0)
3144 CODE: 4075 CODE:
4076{
4077 int semcnt = 1;
4078
4079 if (count)
4080 {
4081 SvGETMAGIC (count);
4082
4083 if (SvOK (count))
4084 semcnt = SvIV (count);
4085 }
4086
3145 RETVAL = sv_bless ( 4087 RETVAL = sv_bless (
3146 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4088 coro_waitarray_new (aTHX_ semcnt),
3147 GvSTASH (CvGV (cv)) 4089 GvSTASH (CvGV (cv))
3148 ); 4090 );
4091}
3149 OUTPUT: 4092 OUTPUT:
3150 RETVAL 4093 RETVAL
3151 4094
3152# helper for Coro::Channel 4095# helper for Coro::Channel and others
3153SV * 4096SV *
3154_alloc (int count) 4097_alloc (int count)
3155 CODE: 4098 CODE:
3156 RETVAL = coro_waitarray_new (aTHX_ count); 4099 RETVAL = coro_waitarray_new (aTHX_ count);
3157 OUTPUT: 4100 OUTPUT:
… …
3215 for (i = 1; i <= wcount; ++i) 4158 for (i = 1; i <= wcount; ++i)
3216 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4159 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3217 } 4160 }
3218} 4161}
3219 4162
4163MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4164
4165void
4166_may_delete (SV *sem, int count, unsigned int extra_refs)
4167 PPCODE:
4168{
4169 AV *av = (AV *)SvRV (sem);
4170
4171 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4172 && AvFILLp (av) == 0 /* no waiters, just count */
4173 && SvIV (AvARRAY (av)[0]) == count)
4174 XSRETURN_YES;
4175
4176 XSRETURN_NO;
4177}
4178
3220MODULE = Coro::State PACKAGE = Coro::Signal 4179MODULE = Coro::State PACKAGE = Coro::Signal
3221 4180
3222SV * 4181SV *
3223new (SV *klass) 4182new (SV *klass)
3224 CODE: 4183 CODE:
… …
3295 4254
3296void 4255void
3297_register (char *target, char *proto, SV *req) 4256_register (char *target, char *proto, SV *req)
3298 CODE: 4257 CODE:
3299{ 4258{
3300 CV *req_cv = coro_sv_2cv (aTHX_ req); 4259 SV *req_cv = s_get_cv_croak (req);
3301 /* newXSproto doesn't return the CV on 5.8 */ 4260 /* newXSproto doesn't return the CV on 5.8 */
3302 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4261 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3303 sv_setpv ((SV *)slf_cv, proto); 4262 sv_setpv ((SV *)slf_cv, proto);
3304 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4263 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3305} 4264}
3306 4265
4266MODULE = Coro::State PACKAGE = Coro::Select
4267
4268void
4269patch_pp_sselect ()
4270 CODE:
4271 if (!coro_old_pp_sselect)
4272 {
4273 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4274 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4275 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4276 }
4277
4278void
4279unpatch_pp_sselect ()
4280 CODE:
4281 if (coro_old_pp_sselect)
4282 {
4283 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4284 coro_old_pp_sselect = 0;
4285 }
4286

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