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Comparing Coro/Coro/State.xs (file contents):
Revision 1.318 by root, Thu Nov 20 07:02:43 2008 UTC vs.
Revision 1.426 by root, Wed Dec 5 00:19:57 2012 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"
12 17
18#define ECB_NO_THREADS 1
19#include "ecb.h"
20
21#include <stddef.h>
13#include <stdio.h> 22#include <stdio.h>
14#include <errno.h> 23#include <errno.h>
15#include <assert.h> 24#include <assert.h>
16 25
17#ifdef WIN32 26#ifndef SVs_PADSTALE
27# define SVs_PADSTALE 0
28#endif
29
30#ifdef PadARRAY
31# define NEWPADAPI
32# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33#else
34typedef AV PADNAMELIST;
35# if !PERL_VERSION_ATLEAST(5,8,0)
36typedef AV PADLIST;
37typedef AV PAD;
38# endif
39# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
40# define PadlistMAX(pl) AvFILLp (pl)
41# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42# define PadARRAY AvARRAY
43# define PadMAX AvFILLp
44# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
45#endif
46
47#if defined(_WIN32)
48# undef HAS_GETTIMEOFDAY
18# undef setjmp 49# undef setjmp
19# undef longjmp 50# undef longjmp
20# undef _exit 51# undef _exit
21# define setjmp _setjmp /* deep magic */ 52# define setjmp _setjmp /* deep magic */
22#else 53#else
23# include <inttypes.h> /* most portable stdint.h */ 54# include <inttypes.h> /* most portable stdint.h */
24#endif 55#endif
25 56
26#ifdef HAVE_MMAP 57#if HAVE_MMAP
27# include <unistd.h> 58# include <unistd.h>
28# include <sys/mman.h> 59# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS 60# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON 61# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON 62# define MAP_ANONYMOUS MAP_ANON
… …
51#endif 82#endif
52 83
53/* the maximum number of idle cctx that will be pooled */ 84/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 85static int cctx_max_idle = 4;
55 86
56#define PERL_VERSION_ATLEAST(a,b,c) \ 87#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 88# 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#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106
107/* 5.8.7 */
108#ifndef SvRV_set
109# define SvRV_set(s,v) SvRV(s) = (v)
110#endif 89#endif
111 90
112#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 91#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
113# undef CORO_STACKGUARD 92# undef CORO_STACKGUARD
114#endif 93#endif
… …
130#else 109#else
131# define dSTACKLEVEL volatile void *stacklevel 110# define dSTACKLEVEL volatile void *stacklevel
132# define STACKLEVEL ((void *)&stacklevel) 111# define STACKLEVEL ((void *)&stacklevel)
133#endif 112#endif
134 113
135#define IN_DESTRUCT (PL_main_cv == Nullcv) 114#define IN_DESTRUCT PL_dirty
136
137#if __GNUC__ >= 3
138# define attribute(x) __attribute__(x)
139# define expect(expr,value) __builtin_expect ((expr),(value))
140# define INLINE static inline
141#else
142# define attribute(x)
143# define expect(expr,value) (expr)
144# define INLINE static
145#endif
146
147#define expect_false(expr) expect ((expr) != 0, 0)
148#define expect_true(expr) expect ((expr) != 0, 1)
149
150#define NOINLINE attribute ((noinline))
151 115
152#include "CoroAPI.h" 116#include "CoroAPI.h"
153#define GCoroAPI (&coroapi) /* very sneaky */ 117#define GCoroAPI (&coroapi) /* very sneaky */
154 118
155#ifdef USE_ITHREADS 119#ifdef USE_ITHREADS
156# if CORO_PTHREAD 120# if CORO_PTHREAD
157static void *coro_thx; 121static void *coro_thx;
158# endif 122# endif
159#endif 123#endif
160 124
125#ifdef __linux
126# include <time.h> /* for timespec */
127# include <syscall.h> /* for SYS_* */
128# ifdef SYS_clock_gettime
129# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
130# define CORO_CLOCK_MONOTONIC 1
131# define CORO_CLOCK_THREAD_CPUTIME_ID 3
132# endif
133#endif
134
161static double (*nvtime)(); /* so why doesn't it take void? */ 135static double (*nvtime)(); /* so why doesn't it take void? */
136static void (*u2time)(pTHX_ UV ret[2]);
162 137
163/* we hijack an hopefully unused CV flag for our purposes */ 138/* we hijack an hopefully unused CV flag for our purposes */
164#define CVf_SLF 0x4000 139#define CVf_SLF 0x4000
165static OP *pp_slf (pTHX); 140static OP *pp_slf (pTHX);
141static void slf_destroy (pTHX_ struct coro *coro);
166 142
167static U32 cctx_gen; 143static U32 cctx_gen;
168static size_t cctx_stacksize = CORO_STACKSIZE; 144static size_t cctx_stacksize = CORO_STACKSIZE;
169static struct CoroAPI coroapi; 145static struct CoroAPI coroapi;
170static AV *main_mainstack; /* used to differentiate between $main and others */ 146static AV *main_mainstack; /* used to differentiate between $main and others */
… …
172static HV *coro_state_stash, *coro_stash; 148static HV *coro_state_stash, *coro_stash;
173static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 149static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
174 150
175static AV *av_destroy; /* destruction queue */ 151static AV *av_destroy; /* destruction queue */
176static SV *sv_manager; /* the manager coro */ 152static SV *sv_manager; /* the manager coro */
153static SV *sv_idle; /* $Coro::idle */
177 154
178static GV *irsgv; /* $/ */ 155static GV *irsgv; /* $/ */
179static GV *stdoutgv; /* *STDOUT */ 156static GV *stdoutgv; /* *STDOUT */
180static SV *rv_diehook; 157static SV *rv_diehook;
181static SV *rv_warnhook; 158static SV *rv_warnhook;
… …
186static SV *sv_pool_size; 163static SV *sv_pool_size;
187static SV *sv_async_pool_idle; /* description string */ 164static SV *sv_async_pool_idle; /* description string */
188static AV *av_async_pool; /* idle pool */ 165static AV *av_async_pool; /* idle pool */
189static SV *sv_Coro; /* class string */ 166static SV *sv_Coro; /* class string */
190static CV *cv_pool_handler; 167static CV *cv_pool_handler;
191static CV *cv_coro_state_new;
192 168
193/* Coro::AnyEvent */ 169/* Coro::AnyEvent */
194static SV *sv_activity; 170static SV *sv_activity;
195 171
172/* enable processtime/realtime profiling */
173static char enable_times;
174typedef U32 coro_ts[2];
175static coro_ts time_real, time_cpu;
176static char times_valid;
177
196static struct coro_cctx *cctx_first; 178static struct coro_cctx *cctx_first;
197static int cctx_count, cctx_idle; 179static int cctx_count, cctx_idle;
198 180
199enum { 181enum
182{
200 CC_MAPPED = 0x01, 183 CC_MAPPED = 0x01,
201 CC_NOREUSE = 0x02, /* throw this away after tracing */ 184 CC_NOREUSE = 0x02, /* throw this away after tracing */
202 CC_TRACE = 0x04, 185 CC_TRACE = 0x04,
203 CC_TRACE_SUB = 0x08, /* trace sub calls */ 186 CC_TRACE_SUB = 0x08, /* trace sub calls */
204 CC_TRACE_LINE = 0x10, /* trace each statement */ 187 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
214 void *sptr; 197 void *sptr;
215 size_t ssize; 198 size_t ssize;
216 199
217 /* cpu state */ 200 /* cpu state */
218 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 201 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
202#ifndef NDEBUG
219 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 203 JMPENV *idle_te; /* same as idle_sp, but for top_env */
204#endif
220 JMPENV *top_env; 205 JMPENV *top_env;
221 coro_context cctx; 206 coro_context cctx;
222 207
223 U32 gen; 208 U32 gen;
224#if CORO_USE_VALGRIND 209#if CORO_USE_VALGRIND
225 int valgrind_id; 210 int valgrind_id;
226#endif 211#endif
227 unsigned char flags; 212 unsigned char flags;
228} coro_cctx; 213} coro_cctx;
229 214
215static coro_cctx *cctx_current; /* the currently running cctx */
216
217/*****************************************************************************/
218
219static MGVTBL coro_state_vtbl;
220
230enum { 221enum
222{
231 CF_RUNNING = 0x0001, /* coroutine is running */ 223 CF_RUNNING = 0x0001, /* coroutine is running */
232 CF_READY = 0x0002, /* coroutine is ready */ 224 CF_READY = 0x0002, /* coroutine is ready */
233 CF_NEW = 0x0004, /* has never been switched to */ 225 CF_NEW = 0x0004, /* has never been switched to */
234 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 226 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
227 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
228 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
235}; 229};
236 230
237/* the structure where most of the perl state is stored, overlaid on the cxstack */ 231/* the structure where most of the perl state is stored, overlaid on the cxstack */
238typedef struct 232typedef struct
239{ 233{
240 SV *defsv;
241 AV *defav;
242 SV *errsv;
243 SV *irsgv;
244#define VAR(name,type) type name; 234 #define VARx(name,expr,type) type name;
245# include "state.h" 235 #include "state.h"
246#undef VAR
247} perl_slots; 236} perl_slots;
248 237
238/* how many context stack entries do we need for perl_slots */
249#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 239#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
250 240
251/* this is a structure representing a perl-level coroutine */ 241/* this is a structure representing a perl-level coroutine */
252struct coro { 242struct coro
243{
253 /* the C coroutine allocated to this perl coroutine, if any */ 244 /* the C coroutine allocated to this perl coroutine, if any */
254 coro_cctx *cctx; 245 coro_cctx *cctx;
246
247 /* ready queue */
248 struct coro *next_ready;
255 249
256 /* state data */ 250 /* state data */
257 struct CoroSLF slf_frame; /* saved slf frame */ 251 struct CoroSLF slf_frame; /* saved slf frame */
258 AV *mainstack; 252 AV *mainstack;
259 perl_slots *slot; /* basically the saved sp */ 253 perl_slots *slot; /* basically the saved sp */
260 254
261 CV *startcv; /* the CV to execute */ 255 CV *startcv; /* the CV to execute */
262 AV *args; /* data associated with this coroutine (initial args) */ 256 AV *args; /* data associated with this coroutine (initial args) */
263 int refcnt; /* coroutines are refcounted, yes */
264 int flags; /* CF_ flags */ 257 int flags; /* CF_ flags */
265 HV *hv; /* the perl hash associated with this coro, if any */ 258 HV *hv; /* the perl hash associated with this coro, if any */
266 void (*on_destroy)(pTHX_ struct coro *coro);
267 259
268 /* statistics */ 260 /* statistics */
269 int usecount; /* number of transfers to this coro */ 261 int usecount; /* number of transfers to this coro */
270 262
271 /* coro process data */ 263 /* coro process data */
272 int prio; 264 int prio;
273 SV *except; /* exception to be thrown */ 265 SV *except; /* exception to be thrown */
274 SV *rouse_cb; 266 SV *rouse_cb; /* last rouse callback */
267 AV *on_destroy; /* callbacks or coros to notify on destroy */
268 AV *status; /* the exit status list */
275 269
276 /* async_pool */ 270 /* async_pool */
277 SV *saved_deffh; 271 SV *saved_deffh;
278 SV *invoke_cb; 272 SV *invoke_cb;
279 AV *invoke_av; 273 AV *invoke_av;
280 274
275 /* on_enter/on_leave */
276 AV *on_enter;
277 AV *on_leave;
278
279 /* swap_sv */
280 AV *swap_sv;
281
282 /* times */
283 coro_ts t_cpu, t_real;
284
281 /* linked list */ 285 /* linked list */
282 struct coro *next, *prev; 286 struct coro *next, *prev;
283}; 287};
284 288
285typedef struct coro *Coro__State; 289typedef struct coro *Coro__State;
286typedef struct coro *Coro__State_or_hashref; 290typedef struct coro *Coro__State_or_hashref;
287 291
288/* the following variables are effectively part of the perl context */ 292/* the following variables are effectively part of the perl context */
289/* and get copied between struct coro and these variables */ 293/* and get copied between struct coro and these variables */
290/* the mainr easonw e don't support windows process emulation */ 294/* the main reason we don't support windows process emulation */
291static struct CoroSLF slf_frame; /* the current slf frame */ 295static struct CoroSLF slf_frame; /* the current slf frame */
292 296
293/** Coro ********************************************************************/ 297/** Coro ********************************************************************/
294 298
295#define PRIO_MAX 3 299#define CORO_PRIO_MAX 3
296#define PRIO_HIGH 1 300#define CORO_PRIO_HIGH 1
297#define PRIO_NORMAL 0 301#define CORO_PRIO_NORMAL 0
298#define PRIO_LOW -1 302#define CORO_PRIO_LOW -1
299#define PRIO_IDLE -3 303#define CORO_PRIO_IDLE -3
300#define PRIO_MIN -4 304#define CORO_PRIO_MIN -4
301 305
302/* for Coro.pm */ 306/* for Coro.pm */
303static SV *coro_current; 307static SV *coro_current;
304static SV *coro_readyhook; 308static SV *coro_readyhook;
305static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 309static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
306static CV *cv_coro_run, *cv_coro_terminate; 310static CV *cv_coro_run;
307static struct coro *coro_first; 311static struct coro *coro_first;
308#define coro_nready coroapi.nready 312#define coro_nready coroapi.nready
309 313
314/** JIT *********************************************************************/
315
316#if CORO_JIT
317 /* APPLE doesn't have HAVE_MMAP though */
318 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
319 #ifndef CORO_JIT_TYPE
320 #if __x86_64 && CORO_JIT_UNIXY
321 #define CORO_JIT_TYPE "amd64-unix"
322 #elif __i386 && CORO_JIT_UNIXY
323 #define CORO_JIT_TYPE "x86-unix"
324 #endif
325 #endif
326#endif
327
328#if !defined(CORO_JIT_TYPE) || !HAVE_MMAP
329 #undef CORO_JIT
330#endif
331
332#if CORO_JIT
333 typedef void (*load_save_perl_slots_type)(perl_slots *);
334 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
335#endif
336
337/** Coro::Select ************************************************************/
338
339static OP *(*coro_old_pp_sselect) (pTHX);
340static SV *coro_select_select;
341
342/* horrible hack, but if it works... */
343static OP *
344coro_pp_sselect (pTHX)
345{
346 dSP;
347 PUSHMARK (SP - 4); /* fake argument list */
348 XPUSHs (coro_select_select);
349 PUTBACK;
350
351 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
352 PL_op->op_flags |= OPf_STACKED;
353 PL_op->op_private = 0;
354 return PL_ppaddr [OP_ENTERSUB](aTHX);
355}
356
357/** time stuff **************************************************************/
358
359#ifdef HAS_GETTIMEOFDAY
360
361ecb_inline void
362coro_u2time (pTHX_ UV ret[2])
363{
364 struct timeval tv;
365 gettimeofday (&tv, 0);
366
367 ret [0] = tv.tv_sec;
368 ret [1] = tv.tv_usec;
369}
370
371ecb_inline double
372coro_nvtime (void)
373{
374 struct timeval tv;
375 gettimeofday (&tv, 0);
376
377 return tv.tv_sec + tv.tv_usec * 1e-6;
378}
379
380ecb_inline void
381time_init (pTHX)
382{
383 nvtime = coro_nvtime;
384 u2time = coro_u2time;
385}
386
387#else
388
389ecb_inline void
390time_init (pTHX)
391{
392 SV **svp;
393
394 require_pv ("Time/HiRes.pm");
395
396 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
397
398 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
399 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
400
401 nvtime = INT2PTR (double (*)(), SvIV (*svp));
402
403 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
404 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
405}
406
407#endif
408
310/** lowlevel stuff **********************************************************/ 409/** lowlevel stuff **********************************************************/
311 410
312static SV * 411static SV * ecb_noinline
313coro_get_sv (pTHX_ const char *name, int create) 412coro_get_sv (pTHX_ const char *name, int create)
314{ 413{
315#if PERL_VERSION_ATLEAST (5,10,0) 414#if PERL_VERSION_ATLEAST (5,10,0)
316 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 415 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
317 get_sv (name, create); 416 get_sv (name, create);
318#endif 417#endif
319 return get_sv (name, create); 418 return get_sv (name, create);
320} 419}
321 420
322static AV * 421static AV * ecb_noinline
323coro_get_av (pTHX_ const char *name, int create) 422coro_get_av (pTHX_ const char *name, int create)
324{ 423{
325#if PERL_VERSION_ATLEAST (5,10,0) 424#if PERL_VERSION_ATLEAST (5,10,0)
326 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 425 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
327 get_av (name, create); 426 get_av (name, create);
328#endif 427#endif
329 return get_av (name, create); 428 return get_av (name, create);
330} 429}
331 430
332static HV * 431static HV * ecb_noinline
333coro_get_hv (pTHX_ const char *name, int create) 432coro_get_hv (pTHX_ const char *name, int create)
334{ 433{
335#if PERL_VERSION_ATLEAST (5,10,0) 434#if PERL_VERSION_ATLEAST (5,10,0)
336 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 435 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
337 get_hv (name, create); 436 get_hv (name, create);
338#endif 437#endif
339 return get_hv (name, create); 438 return get_hv (name, create);
340} 439}
341 440
342/* may croak */ 441ecb_inline void
343INLINE CV * 442coro_times_update (void)
344coro_sv_2cv (pTHX_ SV *sv)
345{ 443{
346 HV *st; 444#ifdef coro_clock_gettime
347 GV *gvp; 445 struct timespec ts;
348 return sv_2cv (sv, &st, &gvp, 0);
349}
350 446
351static AV * 447 ts.tv_sec = ts.tv_nsec = 0;
448 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
449 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
450
451 ts.tv_sec = ts.tv_nsec = 0;
452 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
453 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
454#else
455 dTHX;
456 UV tv[2];
457
458 u2time (aTHX_ tv);
459 time_real [0] = tv [0];
460 time_real [1] = tv [1] * 1000;
461#endif
462}
463
464ecb_inline void
465coro_times_add (struct coro *c)
466{
467 c->t_real [1] += time_real [1];
468 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
469 c->t_real [0] += time_real [0];
470
471 c->t_cpu [1] += time_cpu [1];
472 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
473 c->t_cpu [0] += time_cpu [0];
474}
475
476ecb_inline void
477coro_times_sub (struct coro *c)
478{
479 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
480 c->t_real [1] -= time_real [1];
481 c->t_real [0] -= time_real [0];
482
483 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
484 c->t_cpu [1] -= time_cpu [1];
485 c->t_cpu [0] -= time_cpu [0];
486}
487
488/*****************************************************************************/
489/* magic glue */
490
491#define CORO_MAGIC_type_cv 26
492#define CORO_MAGIC_type_state PERL_MAGIC_ext
493
494#define CORO_MAGIC_NN(sv, type) \
495 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
496 ? SvMAGIC (sv) \
497 : mg_find (sv, type))
498
499#define CORO_MAGIC(sv, type) \
500 (ecb_expect_true (SvMAGIC (sv)) \
501 ? CORO_MAGIC_NN (sv, type) \
502 : 0)
503
504#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
505#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
506
507ecb_inline MAGIC *
508SvSTATEhv_p (pTHX_ SV *coro)
509{
510 MAGIC *mg;
511
512 if (ecb_expect_true (
513 SvTYPE (coro) == SVt_PVHV
514 && (mg = CORO_MAGIC_state (coro))
515 && mg->mg_virtual == &coro_state_vtbl
516 ))
517 return mg;
518
519 return 0;
520}
521
522ecb_inline struct coro *
523SvSTATE_ (pTHX_ SV *coro)
524{
525 MAGIC *mg;
526
527 if (SvROK (coro))
528 coro = SvRV (coro);
529
530 mg = SvSTATEhv_p (aTHX_ coro);
531 if (!mg)
532 croak ("Coro::State object required");
533
534 return (struct coro *)mg->mg_ptr;
535}
536
537#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
538
539/* faster than SvSTATE, but expects a coroutine hv */
540#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
541#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
542
543/*****************************************************************************/
544/* padlist management and caching */
545
546ecb_inline PADLIST *
352coro_clone_padlist (pTHX_ CV *cv) 547coro_derive_padlist (pTHX_ CV *cv)
353{ 548{
354 AV *padlist = CvPADLIST (cv); 549 PADLIST *padlist = CvPADLIST (cv);
355 AV *newpadlist, *newpad; 550 PADLIST *newpadlist;
551 PAD *newpad;
552 PADOFFSET const off = PadlistMAX (padlist) + 1;
356 553
357 newpadlist = newAV (); 554 newPADLIST(newpadlist);
555#if !PERL_VERSION_ATLEAST(5,15,3)
556 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
358 AvREAL_off (newpadlist); 557 AvREAL_off (newpadlist);
558#endif
359#if PERL_VERSION_ATLEAST (5,10,0) 559#if PERL_VERSION_ATLEAST (5,10,0)
360 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 560 Perl_pad_push (aTHX_ padlist, off);
361#else 561#else
362 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 562 Perl_pad_push (aTHX_ padlist, off, 1);
363#endif 563#endif
364 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 564 newpad = PadlistARRAY (padlist)[off];
365 --AvFILLp (padlist); 565 PadlistMAX (padlist) = off - 1;
366 566
367 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 567 /* Already extended to 2 elements by newPADLIST. */
368 av_store (newpadlist, 1, (SV *)newpad); 568 PadlistMAX (newpadlist) = 1;
569 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
570 PadlistARRAY (newpadlist)[1] = newpad;
369 571
370 return newpadlist; 572 return newpadlist;
371} 573}
372 574
373static void 575ecb_inline void
374free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
375{ 577{
376 /* may be during global destruction */ 578 /* may be during global destruction */
377 if (SvREFCNT (padlist)) 579 if (!IN_DESTRUCT)
378 { 580 {
379 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
380 while (i >= 0) 582
583 while (i > 0) /* special-case index 0 */
381 { 584 {
382 SV **svp = av_fetch (padlist, i--, FALSE); 585 /* we try to be extra-careful here */
383 if (svp) 586 PAD *pad = PadlistARRAY (padlist)[i--];
384 { 587 I32 j = PadMAX (pad);
385 SV *sv;
386 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
387 SvREFCNT_dec (sv);
388 588
589 while (j >= 0)
590 SvREFCNT_dec (PadARRAY (pad)[j--]);
591
592 PadMAX (pad) = -1;
389 SvREFCNT_dec (*svp); 593 SvREFCNT_dec (pad);
390 }
391 } 594 }
392 595
596 SvREFCNT_dec (PadlistNAMES (padlist));
597
598#ifdef NEWPADAPI
599 Safefree (PadlistARRAY (padlist));
600 Safefree (padlist);
601#else
602 AvFILLp (padlist) = -1;
603 AvREAL_off (padlist);
393 SvREFCNT_dec ((SV*)padlist); 604 SvREFCNT_dec ((SV*)padlist);
605#endif
394 } 606 }
395} 607}
396 608
397static int 609static int
398coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 610coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
399{ 611{
400 AV *padlist; 612 PADLIST *padlist;
401 AV *av = (AV *)mg->mg_obj; 613 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
614 size_t len = *(size_t *)mg->mg_ptr;
402 615
403 /* casting is fun. */ 616 /* perl manages to free our internal AV and _then_ call us */
404 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 617 if (IN_DESTRUCT)
618 return 0;
619
620 while (len--)
405 free_padlist (aTHX_ padlist); 621 free_padlist (aTHX_ padlists[len]);
406
407 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
408 622
409 return 0; 623 return 0;
410} 624}
411
412#define CORO_MAGIC_type_cv 26
413#define CORO_MAGIC_type_state PERL_MAGIC_ext
414 625
415static MGVTBL coro_cv_vtbl = { 626static MGVTBL coro_cv_vtbl = {
416 0, 0, 0, 0, 627 0, 0, 0, 0,
417 coro_cv_free 628 coro_cv_free
418}; 629};
419 630
420#define CORO_MAGIC_NN(sv, type) \
421 (expect_true (SvMAGIC (sv)->mg_type == type) \
422 ? SvMAGIC (sv) \
423 : mg_find (sv, type))
424
425#define CORO_MAGIC(sv, type) \
426 (expect_true (SvMAGIC (sv)) \
427 ? CORO_MAGIC_NN (sv, type) \
428 : 0)
429
430#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
431#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
432
433INLINE struct coro *
434SvSTATE_ (pTHX_ SV *coro)
435{
436 HV *stash;
437 MAGIC *mg;
438
439 if (SvROK (coro))
440 coro = SvRV (coro);
441
442 if (expect_false (SvTYPE (coro) != SVt_PVHV))
443 croak ("Coro::State object required");
444
445 stash = SvSTASH (coro);
446 if (expect_false (stash != coro_stash && stash != coro_state_stash))
447 {
448 /* very slow, but rare, check */
449 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
450 croak ("Coro::State object required");
451 }
452
453 mg = CORO_MAGIC_state (coro);
454 return (struct coro *)mg->mg_ptr;
455}
456
457#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
458
459/* faster than SvSTATE, but expects a coroutine hv */
460#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
461#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
462
463/* the next two functions merely cache the padlists */ 631/* the next two functions merely cache the padlists */
464static void 632ecb_inline void
465get_padlist (pTHX_ CV *cv) 633get_padlist (pTHX_ CV *cv)
466{ 634{
467 MAGIC *mg = CORO_MAGIC_cv (cv); 635 MAGIC *mg = CORO_MAGIC_cv (cv);
468 AV *av; 636 size_t *lenp;
469 637
470 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 638 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
471 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 639 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
472 else 640 else
473 { 641 {
474#if CORO_PREFER_PERL_FUNCTIONS 642#if CORO_PREFER_PERL_FUNCTIONS
475 /* this is probably cleaner? but also slower! */ 643 /* this is probably cleaner? but also slower! */
476 /* in practise, it seems to be less stable */ 644 /* in practise, it seems to be less stable */
477 CV *cp = Perl_cv_clone (aTHX_ cv); 645 CV *cp = Perl_cv_clone (aTHX_ cv);
478 CvPADLIST (cv) = CvPADLIST (cp); 646 CvPADLIST (cv) = CvPADLIST (cp);
479 CvPADLIST (cp) = 0; 647 CvPADLIST (cp) = 0;
480 SvREFCNT_dec (cp); 648 SvREFCNT_dec (cp);
481#else 649#else
482 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 650 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
483#endif 651#endif
484 } 652 }
485} 653}
486 654
487static void 655ecb_inline void
488put_padlist (pTHX_ CV *cv) 656put_padlist (pTHX_ CV *cv)
489{ 657{
490 MAGIC *mg = CORO_MAGIC_cv (cv); 658 MAGIC *mg = CORO_MAGIC_cv (cv);
491 AV *av;
492 659
493 if (expect_false (!mg)) 660 if (ecb_expect_false (!mg))
661 {
494 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 662 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
663 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
664 mg->mg_len = 1; /* so mg_free frees mg_ptr */
665 }
666 else
667 Renew (mg->mg_ptr,
668 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
669 char);
495 670
496 av = (AV *)mg->mg_obj; 671 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
497
498 if (expect_false (AvFILLp (av) >= AvMAX (av)))
499 av_extend (av, AvMAX (av) + 1);
500
501 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
502} 672}
503 673
504/** load & save, init *******************************************************/ 674/** load & save, init *******************************************************/
675
676ecb_inline void
677swap_sv (SV *a, SV *b)
678{
679 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
680 SV tmp;
681
682 /* swap sv_any */
683 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
684
685 /* swap sv_flags */
686 SvFLAGS (&tmp) = SvFLAGS (a);
687 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
688 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
689
690#if PERL_VERSION_ATLEAST (5,10,0)
691 /* perl 5.10 and later complicates this _quite_ a bit, but it also
692 * is much faster, so no quarrels here. alternatively, we could
693 * sv_upgrade to avoid this.
694 */
695 {
696 /* swap sv_u */
697 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
698
699 /* if SvANY points to the head, we need to adjust the pointers,
700 * as the pointer for a still points to b, and maybe vice versa.
701 */
702 #define svany_in_head(type) \
703 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
704
705 if (svany_in_head (SvTYPE (a)))
706 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
707
708 if (svany_in_head (SvTYPE (b)))
709 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
710 }
711#endif
712}
713
714/* swap sv heads, at least logically */
715static void
716swap_svs (pTHX_ Coro__State c)
717{
718 int i;
719
720 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
721 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
722}
723
724#define SWAP_SVS(coro) \
725 if (ecb_expect_false ((coro)->swap_sv)) \
726 swap_svs (aTHX_ (coro))
727
728static void
729on_enterleave_call (pTHX_ SV *cb);
505 730
506static void 731static void
507load_perl (pTHX_ Coro__State c) 732load_perl (pTHX_ Coro__State c)
508{ 733{
509 perl_slots *slot = c->slot; 734 perl_slots *slot = c->slot;
510 c->slot = 0; 735 c->slot = 0;
511 736
512 PL_mainstack = c->mainstack; 737 PL_mainstack = c->mainstack;
513 738
514 GvSV (PL_defgv) = slot->defsv; 739#if CORO_JIT
515 GvAV (PL_defgv) = slot->defav; 740 load_perl_slots (slot);
516 GvSV (PL_errgv) = slot->errsv; 741#else
517 GvSV (irsgv) = slot->irsgv;
518
519 #define VAR(name,type) PL_ ## name = slot->name; 742 #define VARx(name,expr,type) expr = slot->name;
520 # include "state.h" 743 #include "state.h"
521 #undef VAR 744#endif
522 745
523 { 746 {
524 dSP; 747 dSP;
525 748
526 CV *cv; 749 CV *cv;
527 750
528 /* now do the ugly restore mess */ 751 /* now do the ugly restore mess */
529 while (expect_true (cv = (CV *)POPs)) 752 while (ecb_expect_true (cv = (CV *)POPs))
530 { 753 {
531 put_padlist (aTHX_ cv); /* mark this padlist as available */ 754 put_padlist (aTHX_ cv); /* mark this padlist as available */
532 CvDEPTH (cv) = PTR2IV (POPs); 755 CvDEPTH (cv) = PTR2IV (POPs);
533 CvPADLIST (cv) = (AV *)POPs; 756 CvPADLIST (cv) = (PADLIST *)POPs;
534 } 757 }
535 758
536 PUTBACK; 759 PUTBACK;
537 } 760 }
538 761
539 slf_frame = c->slf_frame; 762 slf_frame = c->slf_frame;
540 CORO_THROW = c->except; 763 CORO_THROW = c->except;
764
765 if (ecb_expect_false (enable_times))
766 {
767 if (ecb_expect_false (!times_valid))
768 coro_times_update ();
769
770 coro_times_sub (c);
771 }
772
773 if (ecb_expect_false (c->on_enter))
774 {
775 int i;
776
777 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
778 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
779 }
780
781 SWAP_SVS (c);
541} 782}
542 783
543static void 784static void
544save_perl (pTHX_ Coro__State c) 785save_perl (pTHX_ Coro__State c)
545{ 786{
787 SWAP_SVS (c);
788
789 if (ecb_expect_false (c->on_leave))
790 {
791 int i;
792
793 for (i = AvFILLp (c->on_leave); i >= 0; --i)
794 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
795 }
796
797 times_valid = 0;
798
799 if (ecb_expect_false (enable_times))
800 {
801 coro_times_update (); times_valid = 1;
802 coro_times_add (c);
803 }
804
546 c->except = CORO_THROW; 805 c->except = CORO_THROW;
547 c->slf_frame = slf_frame; 806 c->slf_frame = slf_frame;
548 807
549 { 808 {
550 dSP; 809 dSP;
… …
559 818
560 XPUSHs (Nullsv); 819 XPUSHs (Nullsv);
561 /* this loop was inspired by pp_caller */ 820 /* this loop was inspired by pp_caller */
562 for (;;) 821 for (;;)
563 { 822 {
564 while (expect_true (cxix >= 0)) 823 while (ecb_expect_true (cxix >= 0))
565 { 824 {
566 PERL_CONTEXT *cx = &ccstk[cxix--]; 825 PERL_CONTEXT *cx = &ccstk[cxix--];
567 826
568 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 827 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
569 { 828 {
570 CV *cv = cx->blk_sub.cv; 829 CV *cv = cx->blk_sub.cv;
571 830
572 if (expect_true (CvDEPTH (cv))) 831 if (ecb_expect_true (CvDEPTH (cv)))
573 { 832 {
574 EXTEND (SP, 3); 833 EXTEND (SP, 3);
575 PUSHs ((SV *)CvPADLIST (cv)); 834 PUSHs ((SV *)CvPADLIST (cv));
576 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 835 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
577 PUSHs ((SV *)cv); 836 PUSHs ((SV *)cv);
… …
580 get_padlist (aTHX_ cv); 839 get_padlist (aTHX_ cv);
581 } 840 }
582 } 841 }
583 } 842 }
584 843
585 if (expect_true (top_si->si_type == PERLSI_MAIN)) 844 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
586 break; 845 break;
587 846
588 top_si = top_si->si_prev; 847 top_si = top_si->si_prev;
589 ccstk = top_si->si_cxstack; 848 ccstk = top_si->si_cxstack;
590 cxix = top_si->si_cxix; 849 cxix = top_si->si_cxix;
… …
592 851
593 PUTBACK; 852 PUTBACK;
594 } 853 }
595 854
596 /* allocate some space on the context stack for our purposes */ 855 /* allocate some space on the context stack for our purposes */
597 /* we manually unroll here, as usually 2 slots is enough */ 856 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
598 if (SLOT_COUNT >= 1) CXINC;
599 if (SLOT_COUNT >= 2) CXINC;
600 if (SLOT_COUNT >= 3) CXINC;
601 { 857 {
602 int i; 858 unsigned int i;
859
603 for (i = 3; i < SLOT_COUNT; ++i) 860 for (i = 0; i < SLOT_COUNT; ++i)
604 CXINC; 861 CXINC;
605 } 862
606 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 863 cxstack_ix -= SLOT_COUNT; /* undo allocation */
864 }
607 865
608 c->mainstack = PL_mainstack; 866 c->mainstack = PL_mainstack;
609 867
610 { 868 {
611 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 869 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
612 870
613 slot->defav = GvAV (PL_defgv); 871#if CORO_JIT
614 slot->defsv = DEFSV; 872 save_perl_slots (slot);
615 slot->errsv = ERRSV; 873#else
616 slot->irsgv = GvSV (irsgv);
617
618 #define VAR(name,type) slot->name = PL_ ## name; 874 #define VARx(name,expr,type) slot->name = expr;
619 # include "state.h" 875 #include "state.h"
620 #undef VAR 876#endif
621 } 877 }
622} 878}
623 879
624/* 880/*
625 * allocate various perl stacks. This is almost an exact copy 881 * allocate various perl stacks. This is almost an exact copy
… …
631# define coro_init_stacks(thx) init_stacks () 887# define coro_init_stacks(thx) init_stacks ()
632#else 888#else
633static void 889static void
634coro_init_stacks (pTHX) 890coro_init_stacks (pTHX)
635{ 891{
636 PL_curstackinfo = new_stackinfo(32, 8); 892 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
637 PL_curstackinfo->si_type = PERLSI_MAIN; 893 PL_curstackinfo->si_type = PERLSI_MAIN;
638 PL_curstack = PL_curstackinfo->si_stack; 894 PL_curstack = PL_curstackinfo->si_stack;
639 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 895 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
640 896
641 PL_stack_base = AvARRAY(PL_curstack); 897 PL_stack_base = AvARRAY(PL_curstack);
… …
656#endif 912#endif
657 913
658 New(54,PL_scopestack,8,I32); 914 New(54,PL_scopestack,8,I32);
659 PL_scopestack_ix = 0; 915 PL_scopestack_ix = 0;
660 PL_scopestack_max = 8; 916 PL_scopestack_max = 8;
917#if HAS_SCOPESTACK_NAME
918 New(54,PL_scopestack_name,8,const char*);
919#endif
661 920
662 New(54,PL_savestack,24,ANY); 921 New(54,PL_savestack,24,ANY);
663 PL_savestack_ix = 0; 922 PL_savestack_ix = 0;
664 PL_savestack_max = 24; 923 PL_savestack_max = 24;
665 924
… …
693 } 952 }
694 953
695 Safefree (PL_tmps_stack); 954 Safefree (PL_tmps_stack);
696 Safefree (PL_markstack); 955 Safefree (PL_markstack);
697 Safefree (PL_scopestack); 956 Safefree (PL_scopestack);
957#if HAS_SCOPESTACK_NAME
958 Safefree (PL_scopestack_name);
959#endif
698 Safefree (PL_savestack); 960 Safefree (PL_savestack);
699#if !PERL_VERSION_ATLEAST (5,10,0) 961#if !PERL_VERSION_ATLEAST (5,10,0)
700 Safefree (PL_retstack); 962 Safefree (PL_retstack);
701#endif 963#endif
702} 964}
… …
748#endif 1010#endif
749 1011
750/* 1012/*
751 * This overrides the default magic get method of %SIG elements. 1013 * This overrides the default magic get method of %SIG elements.
752 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1014 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
753 * and instead of tryign to save and restore the hash elements, we just provide 1015 * and instead of trying to save and restore the hash elements (extremely slow),
754 * readback here. 1016 * we just provide our own readback here.
755 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
756 * not expecting this to actually change the hook. This is a potential problem
757 * when a schedule happens then, but we ignore this.
758 */ 1017 */
759static int 1018static int ecb_cold
760coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1019coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
761{ 1020{
762 const char *s = MgPV_nolen_const (mg); 1021 const char *s = MgPV_nolen_const (mg);
763 1022
764 if (*s == '_') 1023 if (*s == '_')
765 { 1024 {
766 SV **svp = 0; 1025 SV **svp = 0;
767 1026
768 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1027 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
769 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1028 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
770 1029
771 if (svp) 1030 if (svp)
772 { 1031 {
773 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1032 SV *ssv;
1033
1034 if (!*svp)
1035 ssv = &PL_sv_undef;
1036 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1037 ssv = sv_2mortal (newRV_inc (*svp));
1038 else
1039 ssv = *svp;
1040
1041 sv_setsv (sv, ssv);
774 return 0; 1042 return 0;
775 } 1043 }
776 } 1044 }
777 1045
778 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1046 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
779} 1047}
780 1048
781static int 1049static int ecb_cold
782coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1050coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
783{ 1051{
784 const char *s = MgPV_nolen_const (mg); 1052 const char *s = MgPV_nolen_const (mg);
785 1053
786 if (*s == '_') 1054 if (*s == '_')
… …
800 } 1068 }
801 1069
802 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1070 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
803} 1071}
804 1072
805static int 1073static int ecb_cold
806coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1074coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
807{ 1075{
808 const char *s = MgPV_nolen_const (mg); 1076 const char *s = MgPV_nolen_const (mg);
809 1077
810 if (*s == '_') 1078 if (*s == '_')
… …
815 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1083 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
816 1084
817 if (svp) 1085 if (svp)
818 { 1086 {
819 SV *old = *svp; 1087 SV *old = *svp;
820 *svp = newSVsv (sv); 1088 *svp = SvOK (sv) ? newSVsv (sv) : 0;
821 SvREFCNT_dec (old); 1089 SvREFCNT_dec (old);
822 return 0; 1090 return 0;
823 } 1091 }
824 } 1092 }
825 1093
… …
843slf_check_repeat (pTHX_ struct CoroSLF *frame) 1111slf_check_repeat (pTHX_ struct CoroSLF *frame)
844{ 1112{
845 return 1; 1113 return 1;
846} 1114}
847 1115
848static UNOP coro_setup_op; 1116static UNOP init_perl_op;
849 1117
850static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1118ecb_noinline static void /* noinline to keep it out of the transfer fast path */
851coro_setup (pTHX_ struct coro *coro) 1119init_perl (pTHX_ struct coro *coro)
852{ 1120{
853 /* 1121 /*
854 * emulate part of the perl startup here. 1122 * emulate part of the perl startup here.
855 */ 1123 */
856 coro_init_stacks (aTHX); 1124 coro_init_stacks (aTHX);
857 1125
858 PL_runops = RUNOPS_DEFAULT; 1126 PL_runops = RUNOPS_DEFAULT;
859 PL_curcop = &PL_compiling; 1127 PL_curcop = &PL_compiling;
860 PL_in_eval = EVAL_NULL; 1128 PL_in_eval = EVAL_NULL;
861 PL_comppad = 0; 1129 PL_comppad = 0;
1130 PL_comppad_name = 0;
1131 PL_comppad_name_fill = 0;
1132 PL_comppad_name_floor = 0;
862 PL_curpm = 0; 1133 PL_curpm = 0;
863 PL_curpad = 0; 1134 PL_curpad = 0;
864 PL_localizing = 0; 1135 PL_localizing = 0;
865 PL_dirty = 0;
866 PL_restartop = 0; 1136 PL_restartop = 0;
867#if PERL_VERSION_ATLEAST (5,10,0) 1137#if PERL_VERSION_ATLEAST (5,10,0)
868 PL_parser = 0; 1138 PL_parser = 0;
869#endif 1139#endif
1140 PL_hints = 0;
870 1141
871 /* recreate the die/warn hooks */ 1142 /* recreate the die/warn hooks */
872 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1143 PL_diehook = SvREFCNT_inc (rv_diehook);
873 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1144 PL_warnhook = SvREFCNT_inc (rv_warnhook);
874 1145
875 GvSV (PL_defgv) = newSV (0); 1146 GvSV (PL_defgv) = newSV (0);
876 GvAV (PL_defgv) = coro->args; coro->args = 0; 1147 GvAV (PL_defgv) = coro->args; coro->args = 0;
877 GvSV (PL_errgv) = newSV (0); 1148 GvSV (PL_errgv) = newSV (0);
878 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1149 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1150 GvHV (PL_hintgv) = 0;
879 PL_rs = newSVsv (GvSV (irsgv)); 1151 PL_rs = newSVsv (GvSV (irsgv));
880 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1152 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
881 1153
882 { 1154 {
883 dSP; 1155 dSP;
… …
898 /* this newly created coroutine might be run on an existing cctx which most 1170 /* this newly created coroutine might be run on an existing cctx which most
899 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1171 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
900 */ 1172 */
901 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1173 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
902 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1174 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1175 slf_frame.destroy = 0;
903 1176
904 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1177 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
905 coro_setup_op.op_next = PL_op; 1178 init_perl_op.op_next = PL_op;
906 coro_setup_op.op_type = OP_CUSTOM; 1179 init_perl_op.op_type = OP_ENTERSUB;
907 coro_setup_op.op_ppaddr = pp_slf; 1180 init_perl_op.op_ppaddr = pp_slf;
908 /* no flags etc. required, as an init function won't be called */ 1181 /* no flags etc. required, as an init function won't be called */
909 1182
910 PL_op = (OP *)&coro_setup_op; 1183 PL_op = (OP *)&init_perl_op;
911 1184
912 /* copy throw, in case it was set before coro_setup */ 1185 /* copy throw, in case it was set before init_perl */
913 CORO_THROW = coro->except; 1186 CORO_THROW = coro->except;
914}
915 1187
1188 SWAP_SVS (coro);
1189
1190 if (ecb_expect_false (enable_times))
1191 {
1192 coro_times_update ();
1193 coro_times_sub (coro);
1194 }
1195}
1196
916static void 1197static void
917coro_destruct (pTHX_ struct coro *coro) 1198coro_unwind_stacks (pTHX)
918{ 1199{
919 if (!IN_DESTRUCT) 1200 if (!IN_DESTRUCT)
920 { 1201 {
921 /* restore all saved variables and stuff */ 1202 /* restore all saved variables and stuff */
922 LEAVE_SCOPE (0); 1203 LEAVE_SCOPE (0);
… …
930 POPSTACK_TO (PL_mainstack); 1211 POPSTACK_TO (PL_mainstack);
931 1212
932 /* unwind main stack */ 1213 /* unwind main stack */
933 dounwind (-1); 1214 dounwind (-1);
934 } 1215 }
1216}
935 1217
936 SvREFCNT_dec (GvSV (PL_defgv)); 1218static void
937 SvREFCNT_dec (GvAV (PL_defgv)); 1219destroy_perl (pTHX_ struct coro *coro)
938 SvREFCNT_dec (GvSV (PL_errgv)); 1220{
939 SvREFCNT_dec (PL_defoutgv); 1221 SV *svf [9];
940 SvREFCNT_dec (PL_rs);
941 SvREFCNT_dec (GvSV (irsgv));
942 1222
943 SvREFCNT_dec (PL_diehook);
944 SvREFCNT_dec (PL_warnhook);
945 1223 {
1224 SV *old_current = SvRV (coro_current);
1225 struct coro *current = SvSTATE (old_current);
1226
1227 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1228
1229 save_perl (aTHX_ current);
1230
1231 /* this will cause transfer_check to croak on block*/
1232 SvRV_set (coro_current, (SV *)coro->hv);
1233
1234 load_perl (aTHX_ coro);
1235
1236 coro_unwind_stacks (aTHX);
1237
1238 /* restore swapped sv's */
1239 SWAP_SVS (coro);
1240
1241 coro_destruct_stacks (aTHX);
1242
1243 /* now save some sv's to be free'd later */
1244 svf [0] = GvSV (PL_defgv);
1245 svf [1] = (SV *)GvAV (PL_defgv);
1246 svf [2] = GvSV (PL_errgv);
1247 svf [3] = (SV *)PL_defoutgv;
1248 svf [4] = PL_rs;
1249 svf [5] = GvSV (irsgv);
1250 svf [6] = (SV *)GvHV (PL_hintgv);
1251 svf [7] = PL_diehook;
1252 svf [8] = PL_warnhook;
1253 assert (9 == sizeof (svf) / sizeof (*svf));
1254
1255 SvRV_set (coro_current, old_current);
1256
1257 load_perl (aTHX_ current);
1258 }
1259
1260 {
1261 unsigned int i;
1262
1263 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1264 SvREFCNT_dec (svf [i]);
1265
946 SvREFCNT_dec (coro->saved_deffh); 1266 SvREFCNT_dec (coro->saved_deffh);
947 SvREFCNT_dec (coro->rouse_cb); 1267 SvREFCNT_dec (coro->rouse_cb);
948 SvREFCNT_dec (coro->invoke_cb); 1268 SvREFCNT_dec (coro->invoke_cb);
949 SvREFCNT_dec (coro->invoke_av); 1269 SvREFCNT_dec (coro->invoke_av);
950 1270 }
951 coro_destruct_stacks (aTHX);
952} 1271}
953 1272
954INLINE void 1273ecb_inline void
955free_coro_mortal (pTHX) 1274free_coro_mortal (pTHX)
956{ 1275{
957 if (expect_true (coro_mortal)) 1276 if (ecb_expect_true (coro_mortal))
958 { 1277 {
959 SvREFCNT_dec (coro_mortal); 1278 SvREFCNT_dec ((SV *)coro_mortal);
960 coro_mortal = 0; 1279 coro_mortal = 0;
961 } 1280 }
962} 1281}
963 1282
964static int 1283static int
965runops_trace (pTHX) 1284runops_trace (pTHX)
966{ 1285{
967 COP *oldcop = 0; 1286 COP *oldcop = 0;
968 int oldcxix = -2; 1287 int oldcxix = -2;
969 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
970 coro_cctx *cctx = coro->cctx;
971 1288
972 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1289 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
973 { 1290 {
974 PERL_ASYNC_CHECK (); 1291 PERL_ASYNC_CHECK ();
975 1292
976 if (cctx->flags & CC_TRACE_ALL) 1293 if (cctx_current->flags & CC_TRACE_ALL)
977 { 1294 {
978 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1295 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
979 { 1296 {
980 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1297 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
981 SV **bot, **top; 1298 SV **bot, **top;
982 AV *av = newAV (); /* return values */ 1299 AV *av = newAV (); /* return values */
983 SV **cb; 1300 SV **cb;
… …
1020 1337
1021 if (PL_curcop != &PL_compiling) 1338 if (PL_curcop != &PL_compiling)
1022 { 1339 {
1023 SV **cb; 1340 SV **cb;
1024 1341
1025 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1342 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1026 { 1343 {
1027 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1344 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1028 1345
1029 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1346 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1030 { 1347 {
1031 runops_proc_t old_runops = PL_runops;
1032 dSP; 1348 dSP;
1033 GV *gv = CvGV (cx->blk_sub.cv); 1349 GV *gv = CvGV (cx->blk_sub.cv);
1034 SV *fullname = sv_2mortal (newSV (0)); 1350 SV *fullname = sv_2mortal (newSV (0));
1035 1351
1036 if (isGV (gv)) 1352 if (isGV (gv))
… …
1054 } 1370 }
1055 1371
1056 oldcxix = cxstack_ix; 1372 oldcxix = cxstack_ix;
1057 } 1373 }
1058 1374
1059 if (cctx->flags & CC_TRACE_LINE) 1375 if (cctx_current->flags & CC_TRACE_LINE)
1060 { 1376 {
1061 dSP; 1377 dSP;
1062 1378
1063 PL_runops = RUNOPS_DEFAULT; 1379 PL_runops = RUNOPS_DEFAULT;
1064 ENTER; 1380 ENTER;
… …
1083 1399
1084 TAINT_NOT; 1400 TAINT_NOT;
1085 return 0; 1401 return 0;
1086} 1402}
1087 1403
1088static struct coro_cctx *cctx_ssl_cctx;
1089static struct CoroSLF cctx_ssl_frame; 1404static struct CoroSLF cctx_ssl_frame;
1090 1405
1091static void 1406static void
1092slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1407slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1093{ 1408{
1094 ta->prev = (struct coro *)cctx_ssl_cctx;
1095 ta->next = 0; 1409 ta->prev = 0;
1096} 1410}
1097 1411
1098static int 1412static int
1099slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1413slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1100{ 1414{
… …
1102 1416
1103 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1417 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1104} 1418}
1105 1419
1106/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1420/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1107static void NOINLINE 1421static void ecb_noinline
1108cctx_prepare (pTHX_ coro_cctx *cctx) 1422cctx_prepare (pTHX)
1109{ 1423{
1110 PL_top_env = &PL_start_env; 1424 PL_top_env = &PL_start_env;
1111 1425
1112 if (cctx->flags & CC_TRACE) 1426 if (cctx_current->flags & CC_TRACE)
1113 PL_runops = runops_trace; 1427 PL_runops = runops_trace;
1114 1428
1115 /* we already must be executing an SLF op, there is no other valid way 1429 /* we already must be executing an SLF op, there is no other valid way
1116 * that can lead to creation of a new cctx */ 1430 * that can lead to creation of a new cctx */
1117 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1431 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1118 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1432 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1119 1433
1120 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1434 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1121 cctx_ssl_cctx = cctx;
1122 cctx_ssl_frame = slf_frame; 1435 cctx_ssl_frame = slf_frame;
1123 1436
1124 slf_frame.prepare = slf_prepare_set_stacklevel; 1437 slf_frame.prepare = slf_prepare_set_stacklevel;
1125 slf_frame.check = slf_check_set_stacklevel; 1438 slf_frame.check = slf_check_set_stacklevel;
1126} 1439}
1127 1440
1128/* the tail of transfer: execute stuff we can only do after a transfer */ 1441/* the tail of transfer: execute stuff we can only do after a transfer */
1129INLINE void 1442ecb_inline void
1130transfer_tail (pTHX) 1443transfer_tail (pTHX)
1131{ 1444{
1132 free_coro_mortal (aTHX); 1445 free_coro_mortal (aTHX);
1446}
1447
1448/* try to exit the same way perl's main function would do */
1449/* we do not bother resetting the environment or other things *7
1450/* that are not, uhm, essential */
1451/* this obviously also doesn't work when perl is embedded */
1452static void ecb_noinline ecb_cold
1453perlish_exit (pTHX)
1454{
1455 int exitstatus = perl_destruct (PL_curinterp);
1456 perl_free (PL_curinterp);
1457 exit (exitstatus);
1133} 1458}
1134 1459
1135/* 1460/*
1136 * this is a _very_ stripped down perl interpreter ;) 1461 * this is a _very_ stripped down perl interpreter ;)
1137 */ 1462 */
… …
1149 /* normally we would need to skip the entersub here */ 1474 /* normally we would need to skip the entersub here */
1150 /* not doing so will re-execute it, which is exactly what we want */ 1475 /* not doing so will re-execute it, which is exactly what we want */
1151 /* PL_nop = PL_nop->op_next */ 1476 /* PL_nop = PL_nop->op_next */
1152 1477
1153 /* inject a fake subroutine call to cctx_init */ 1478 /* inject a fake subroutine call to cctx_init */
1154 cctx_prepare (aTHX_ (coro_cctx *)arg); 1479 cctx_prepare (aTHX);
1155 1480
1156 /* cctx_run is the alternative tail of transfer() */ 1481 /* cctx_run is the alternative tail of transfer() */
1157 transfer_tail (aTHX); 1482 transfer_tail (aTHX);
1158 1483
1159 /* somebody or something will hit me for both perl_run and PL_restartop */ 1484 /* somebody or something will hit me for both perl_run and PL_restartop */
1160 PL_restartop = PL_op; 1485 PL_restartop = PL_op;
1161 perl_run (PL_curinterp); 1486 perl_run (PL_curinterp);
1162 /* 1487 /*
1163 * Unfortunately, there is no way to get at the return values of the 1488 * Unfortunately, there is no way to get at the return values of the
1164 * coro body here, as perl_run destroys these 1489 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1490 * runtime errors here, as this is just a random interpreter, not a thread.
1165 */ 1491 */
1166 1492
1167 /* 1493 /*
1168 * If perl-run returns we assume exit() was being called or the coro 1494 * If perl-run returns we assume exit() was being called or the coro
1169 * fell off the end, which seems to be the only valid (non-bug) 1495 * fell off the end, which seems to be the only valid (non-bug)
1170 * reason for perl_run to return. We try to exit by jumping to the 1496 * reason for perl_run to return. We try to mimic whatever perl is normally
1171 * bootstrap-time "top" top_env, as we cannot restore the "main" 1497 * doing in that case. YMMV.
1172 * coroutine as Coro has no such concept
1173 */ 1498 */
1174 PL_top_env = main_top_env; 1499 perlish_exit (aTHX);
1175 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1176 } 1500 }
1177} 1501}
1178 1502
1179static coro_cctx * 1503static coro_cctx *
1180cctx_new () 1504cctx_new (void)
1181{ 1505{
1182 coro_cctx *cctx; 1506 coro_cctx *cctx;
1183 1507
1184 ++cctx_count; 1508 ++cctx_count;
1185 New (0, cctx, 1, coro_cctx); 1509 New (0, cctx, 1, coro_cctx);
… …
1191 return cctx; 1515 return cctx;
1192} 1516}
1193 1517
1194/* create a new cctx only suitable as source */ 1518/* create a new cctx only suitable as source */
1195static coro_cctx * 1519static coro_cctx *
1196cctx_new_empty () 1520cctx_new_empty (void)
1197{ 1521{
1198 coro_cctx *cctx = cctx_new (); 1522 coro_cctx *cctx = cctx_new ();
1199 1523
1200 cctx->sptr = 0; 1524 cctx->sptr = 0;
1201 coro_create (&cctx->cctx, 0, 0, 0, 0); 1525 coro_create (&cctx->cctx, 0, 0, 0, 0);
… …
1203 return cctx; 1527 return cctx;
1204} 1528}
1205 1529
1206/* create a new cctx suitable as destination/running a perl interpreter */ 1530/* create a new cctx suitable as destination/running a perl interpreter */
1207static coro_cctx * 1531static coro_cctx *
1208cctx_new_run () 1532cctx_new_run (void)
1209{ 1533{
1210 coro_cctx *cctx = cctx_new (); 1534 coro_cctx *cctx = cctx_new ();
1211 void *stack_start; 1535 void *stack_start;
1212 size_t stack_size; 1536 size_t stack_size;
1213 1537
1214#if HAVE_MMAP 1538#if HAVE_MMAP
1215 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1539 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1216 /* mmap supposedly does allocate-on-write for us */ 1540 /* mmap supposedly does allocate-on-write for us */
1217 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1541 cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0);
1218 1542
1219 if (cctx->sptr != (void *)-1) 1543 if (cctx->sptr != (void *)-1)
1220 { 1544 {
1221 #if CORO_STACKGUARD 1545 #if CORO_STACKGUARD
1222 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1546 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
… …
1254cctx_destroy (coro_cctx *cctx) 1578cctx_destroy (coro_cctx *cctx)
1255{ 1579{
1256 if (!cctx) 1580 if (!cctx)
1257 return; 1581 return;
1258 1582
1583 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1584
1259 --cctx_count; 1585 --cctx_count;
1260 coro_destroy (&cctx->cctx); 1586 coro_destroy (&cctx->cctx);
1261 1587
1262 /* coro_transfer creates new, empty cctx's */ 1588 /* coro_transfer creates new, empty cctx's */
1263 if (cctx->sptr) 1589 if (cctx->sptr)
… …
1281#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1607#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1282 1608
1283static coro_cctx * 1609static coro_cctx *
1284cctx_get (pTHX) 1610cctx_get (pTHX)
1285{ 1611{
1286 while (expect_true (cctx_first)) 1612 while (ecb_expect_true (cctx_first))
1287 { 1613 {
1288 coro_cctx *cctx = cctx_first; 1614 coro_cctx *cctx = cctx_first;
1289 cctx_first = cctx->next; 1615 cctx_first = cctx->next;
1290 --cctx_idle; 1616 --cctx_idle;
1291 1617
1292 if (expect_true (!CCTX_EXPIRED (cctx))) 1618 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1293 return cctx; 1619 return cctx;
1294 1620
1295 cctx_destroy (cctx); 1621 cctx_destroy (cctx);
1296 } 1622 }
1297 1623
… …
1302cctx_put (coro_cctx *cctx) 1628cctx_put (coro_cctx *cctx)
1303{ 1629{
1304 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1630 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1305 1631
1306 /* free another cctx if overlimit */ 1632 /* free another cctx if overlimit */
1307 if (expect_false (cctx_idle >= cctx_max_idle)) 1633 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1308 { 1634 {
1309 coro_cctx *first = cctx_first; 1635 coro_cctx *first = cctx_first;
1310 cctx_first = first->next; 1636 cctx_first = first->next;
1311 --cctx_idle; 1637 --cctx_idle;
1312 1638
… …
1323static void 1649static void
1324transfer_check (pTHX_ struct coro *prev, struct coro *next) 1650transfer_check (pTHX_ struct coro *prev, struct coro *next)
1325{ 1651{
1326 /* TODO: throwing up here is considered harmful */ 1652 /* TODO: throwing up here is considered harmful */
1327 1653
1328 if (expect_true (prev != next)) 1654 if (ecb_expect_true (prev != next))
1329 { 1655 {
1330 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1656 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1331 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1657 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1332 1658
1333 if (expect_false (next->flags & CF_RUNNING)) 1659 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1334 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1335
1336 if (expect_false (next->flags & CF_DESTROYED))
1337 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1660 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1338 1661
1339#if !PERL_VERSION_ATLEAST (5,10,0) 1662#if !PERL_VERSION_ATLEAST (5,10,0)
1340 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1663 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1341 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1664 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1342#endif 1665#endif
1343 } 1666 }
1344} 1667}
1345 1668
1346/* always use the TRANSFER macro */ 1669/* always use the TRANSFER macro */
1347static void NOINLINE /* noinline so we have a fixed stackframe */ 1670static void ecb_noinline /* noinline so we have a fixed stackframe */
1348transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1671transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1349{ 1672{
1350 dSTACKLEVEL; 1673 dSTACKLEVEL;
1351 1674
1352 /* sometimes transfer is only called to set idle_sp */ 1675 /* sometimes transfer is only called to set idle_sp */
1353 if (expect_false (!next)) 1676 if (ecb_expect_false (!prev))
1354 { 1677 {
1355 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1678 cctx_current->idle_sp = STACKLEVEL;
1356 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1679 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1357 } 1680 }
1358 else if (expect_true (prev != next)) 1681 else if (ecb_expect_true (prev != next))
1359 { 1682 {
1360 coro_cctx *prev__cctx; 1683 coro_cctx *cctx_prev;
1361 1684
1362 if (expect_false (prev->flags & CF_NEW)) 1685 if (ecb_expect_false (prev->flags & CF_NEW))
1363 { 1686 {
1364 /* create a new empty/source context */ 1687 /* create a new empty/source context */
1365 prev->cctx = cctx_new_empty ();
1366 prev->flags &= ~CF_NEW; 1688 prev->flags &= ~CF_NEW;
1367 prev->flags |= CF_RUNNING; 1689 prev->flags |= CF_RUNNING;
1368 } 1690 }
1369 1691
1370 prev->flags &= ~CF_RUNNING; 1692 prev->flags &= ~CF_RUNNING;
1371 next->flags |= CF_RUNNING; 1693 next->flags |= CF_RUNNING;
1372 1694
1373 /* first get rid of the old state */ 1695 /* first get rid of the old state */
1374 save_perl (aTHX_ prev); 1696 save_perl (aTHX_ prev);
1375 1697
1376 if (expect_false (next->flags & CF_NEW)) 1698 if (ecb_expect_false (next->flags & CF_NEW))
1377 { 1699 {
1378 /* need to start coroutine */ 1700 /* need to start coroutine */
1379 next->flags &= ~CF_NEW; 1701 next->flags &= ~CF_NEW;
1380 /* setup coroutine call */ 1702 /* setup coroutine call */
1381 coro_setup (aTHX_ next); 1703 init_perl (aTHX_ next);
1382 } 1704 }
1383 else 1705 else
1384 load_perl (aTHX_ next); 1706 load_perl (aTHX_ next);
1385 1707
1386 prev__cctx = prev->cctx;
1387
1388 /* possibly untie and reuse the cctx */ 1708 /* possibly untie and reuse the cctx */
1389 if (expect_true ( 1709 if (ecb_expect_true (
1390 prev__cctx->idle_sp == STACKLEVEL 1710 cctx_current->idle_sp == STACKLEVEL
1391 && !(prev__cctx->flags & CC_TRACE) 1711 && !(cctx_current->flags & CC_TRACE)
1392 && !force_cctx 1712 && !force_cctx
1393 )) 1713 ))
1394 { 1714 {
1395 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1715 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1396 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1716 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1397 1717
1398 prev->cctx = 0;
1399
1400 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1718 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1401 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1719 /* without this the next cctx_get might destroy the running cctx while still in use */
1402 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1720 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1403 if (!next->cctx) 1721 if (ecb_expect_true (!next->cctx))
1404 next->cctx = cctx_get (aTHX); 1722 next->cctx = cctx_get (aTHX);
1405 1723
1406 cctx_put (prev__cctx); 1724 cctx_put (cctx_current);
1407 } 1725 }
1726 else
1727 prev->cctx = cctx_current;
1408 1728
1409 ++next->usecount; 1729 ++next->usecount;
1410 1730
1411 if (expect_true (!next->cctx)) 1731 cctx_prev = cctx_current;
1412 next->cctx = cctx_get (aTHX); 1732 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1413 1733
1414 if (expect_false (prev__cctx != next->cctx)) 1734 next->cctx = 0;
1735
1736 if (ecb_expect_false (cctx_prev != cctx_current))
1415 { 1737 {
1416 prev__cctx->top_env = PL_top_env; 1738 cctx_prev->top_env = PL_top_env;
1417 PL_top_env = next->cctx->top_env; 1739 PL_top_env = cctx_current->top_env;
1418 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1740 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1419 } 1741 }
1420 1742
1421 transfer_tail (aTHX); 1743 transfer_tail (aTHX);
1422 } 1744 }
1423} 1745}
… …
1425#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1747#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1426#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1748#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1427 1749
1428/** high level stuff ********************************************************/ 1750/** high level stuff ********************************************************/
1429 1751
1752/* this function is actually Coro, not Coro::State, but we call it from here */
1753/* because it is convenient - but it hasn't been declared yet for that reason */
1430static int 1754static void
1755coro_call_on_destroy (pTHX_ struct coro *coro);
1756
1757static void
1431coro_state_destroy (pTHX_ struct coro *coro) 1758coro_state_destroy (pTHX_ struct coro *coro)
1432{ 1759{
1433 if (coro->flags & CF_DESTROYED) 1760 if (coro->flags & CF_ZOMBIE)
1434 return 0; 1761 return;
1435 1762
1436 if (coro->on_destroy)
1437 coro->on_destroy (aTHX_ coro); 1763 slf_destroy (aTHX_ coro);
1438 1764
1439 coro->flags |= CF_DESTROYED; 1765 coro->flags |= CF_ZOMBIE;
1440 1766
1441 if (coro->flags & CF_READY) 1767 if (coro->flags & CF_READY)
1442 { 1768 {
1443 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1769 /* reduce nready, as destroying a ready coro effectively unreadies it */
1444 /* alternative: look through all ready queues and remove the coro */ 1770 /* alternative: look through all ready queues and remove the coro */
1445 --coro_nready; 1771 --coro_nready;
1446 } 1772 }
1447 else 1773 else
1448 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1774 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1449 1775
1450 if (coro->mainstack && coro->mainstack != main_mainstack) 1776 if (coro->next) coro->next->prev = coro->prev;
1451 { 1777 if (coro->prev) coro->prev->next = coro->next;
1452 struct coro temp; 1778 if (coro == coro_first) coro_first = coro->next;
1453 1779
1454 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1780 if (coro->mainstack
1455 1781 && coro->mainstack != main_mainstack
1456 save_perl (aTHX_ &temp); 1782 && coro->slot
1783 && !PL_dirty)
1457 load_perl (aTHX_ coro); 1784 destroy_perl (aTHX_ coro);
1458
1459 coro_destruct (aTHX_ coro);
1460
1461 load_perl (aTHX_ &temp);
1462
1463 coro->slot = 0;
1464 }
1465 1785
1466 cctx_destroy (coro->cctx); 1786 cctx_destroy (coro->cctx);
1467 SvREFCNT_dec (coro->startcv); 1787 SvREFCNT_dec (coro->startcv);
1468 SvREFCNT_dec (coro->args); 1788 SvREFCNT_dec (coro->args);
1789 SvREFCNT_dec (coro->swap_sv);
1469 SvREFCNT_dec (CORO_THROW); 1790 SvREFCNT_dec (CORO_THROW);
1470 1791
1471 if (coro->next) coro->next->prev = coro->prev; 1792 coro_call_on_destroy (aTHX_ coro);
1472 if (coro->prev) coro->prev->next = coro->next;
1473 if (coro == coro_first) coro_first = coro->next;
1474 1793
1475 return 1; 1794 /* more destruction mayhem in coro_state_free */
1476} 1795}
1477 1796
1478static int 1797static int
1479coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1798coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1480{ 1799{
1481 struct coro *coro = (struct coro *)mg->mg_ptr; 1800 struct coro *coro = (struct coro *)mg->mg_ptr;
1482 mg->mg_ptr = 0; 1801 mg->mg_ptr = 0;
1483 1802
1484 coro->hv = 0;
1485
1486 if (--coro->refcnt < 0)
1487 {
1488 coro_state_destroy (aTHX_ coro); 1803 coro_state_destroy (aTHX_ coro);
1804 SvREFCNT_dec (coro->on_destroy);
1805 SvREFCNT_dec (coro->status);
1806
1489 Safefree (coro); 1807 Safefree (coro);
1490 }
1491 1808
1492 return 0; 1809 return 0;
1493} 1810}
1494 1811
1495static int 1812static int ecb_cold
1496coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1813coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1497{ 1814{
1498 struct coro *coro = (struct coro *)mg->mg_ptr; 1815 /* called when perl clones the current process the slow way (windows process emulation) */
1499 1816 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1500 ++coro->refcnt; 1817 mg->mg_ptr = 0;
1818 mg->mg_virtual = 0;
1501 1819
1502 return 0; 1820 return 0;
1503} 1821}
1504 1822
1505static MGVTBL coro_state_vtbl = { 1823static MGVTBL coro_state_vtbl = {
… …
1528 1846
1529 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1847 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1530 TRANSFER (ta, 1); 1848 TRANSFER (ta, 1);
1531} 1849}
1532 1850
1533/*****************************************************************************/
1534/* gensub: simple closure generation utility */
1535
1536#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1537
1538/* create a closure from XS, returns a code reference */
1539/* the arg can be accessed via GENSUB_ARG from the callback */
1540/* the callback must use dXSARGS/XSRETURN */
1541static SV *
1542gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1543{
1544 CV *cv = (CV *)newSV (0);
1545
1546 sv_upgrade ((SV *)cv, SVt_PVCV);
1547
1548 CvANON_on (cv);
1549 CvISXSUB_on (cv);
1550 CvXSUB (cv) = xsub;
1551 GENSUB_ARG = arg;
1552
1553 return newRV_noinc ((SV *)cv);
1554}
1555
1556/** Coro ********************************************************************/ 1851/** Coro ********************************************************************/
1557 1852
1558INLINE void 1853ecb_inline void
1559coro_enq (pTHX_ struct coro *coro) 1854coro_enq (pTHX_ struct coro *coro)
1560{ 1855{
1561 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1856 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1562}
1563 1857
1564INLINE SV * 1858 SvREFCNT_inc_NN (coro->hv);
1859
1860 coro->next_ready = 0;
1861 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1862 ready [1] = coro;
1863}
1864
1865ecb_inline struct coro *
1565coro_deq (pTHX) 1866coro_deq (pTHX)
1566{ 1867{
1567 int prio; 1868 int prio;
1568 1869
1569 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1870 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1570 if (AvFILLp (coro_ready [prio]) >= 0) 1871 {
1571 return av_shift (coro_ready [prio]); 1872 struct coro **ready = coro_ready [prio];
1873
1874 if (ready [0])
1875 {
1876 struct coro *coro = ready [0];
1877 ready [0] = coro->next_ready;
1878 return coro;
1879 }
1880 }
1572 1881
1573 return 0; 1882 return 0;
1883}
1884
1885static void
1886invoke_sv_ready_hook_helper (void)
1887{
1888 dTHX;
1889 dSP;
1890
1891 ENTER;
1892 SAVETMPS;
1893
1894 PUSHMARK (SP);
1895 PUTBACK;
1896 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1897
1898 FREETMPS;
1899 LEAVE;
1574} 1900}
1575 1901
1576static int 1902static int
1577api_ready (pTHX_ SV *coro_sv) 1903api_ready (pTHX_ SV *coro_sv)
1578{ 1904{
1579 struct coro *coro;
1580 SV *sv_hook;
1581 void (*xs_hook)(void);
1582
1583 if (SvROK (coro_sv))
1584 coro_sv = SvRV (coro_sv);
1585
1586 coro = SvSTATE (coro_sv); 1905 struct coro *coro = SvSTATE (coro_sv);
1587 1906
1588 if (coro->flags & CF_READY) 1907 if (coro->flags & CF_READY)
1589 return 0; 1908 return 0;
1590 1909
1591 coro->flags |= CF_READY; 1910 coro->flags |= CF_READY;
1592 1911
1593 sv_hook = coro_nready ? 0 : coro_readyhook;
1594 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1595
1596 coro_enq (aTHX_ coro); 1912 coro_enq (aTHX_ coro);
1597 ++coro_nready;
1598 1913
1599 if (sv_hook) 1914 if (!coro_nready++)
1600 { 1915 if (coroapi.readyhook)
1601 dSP; 1916 coroapi.readyhook ();
1602
1603 ENTER;
1604 SAVETMPS;
1605
1606 PUSHMARK (SP);
1607 PUTBACK;
1608 call_sv (sv_hook, G_VOID | G_DISCARD);
1609
1610 FREETMPS;
1611 LEAVE;
1612 }
1613
1614 if (xs_hook)
1615 xs_hook ();
1616 1917
1617 return 1; 1918 return 1;
1618} 1919}
1619 1920
1620static int 1921static int
… …
1622{ 1923{
1623 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1924 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1624} 1925}
1625 1926
1626/* expects to own a reference to next->hv */ 1927/* expects to own a reference to next->hv */
1627INLINE void 1928ecb_inline void
1628prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1929prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1629{ 1930{
1630 SV *prev_sv = SvRV (coro_current); 1931 SV *prev_sv = SvRV (coro_current);
1631 1932
1632 ta->prev = SvSTATE_hv (prev_sv); 1933 ta->prev = SvSTATE_hv (prev_sv);
… …
1643static void 1944static void
1644prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1945prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1645{ 1946{
1646 for (;;) 1947 for (;;)
1647 { 1948 {
1648 SV *next_sv = coro_deq (aTHX); 1949 struct coro *next = coro_deq (aTHX);
1649 1950
1650 if (expect_true (next_sv)) 1951 if (ecb_expect_true (next))
1651 { 1952 {
1652 struct coro *next = SvSTATE_hv (next_sv);
1653
1654 /* cannot transfer to destroyed coros, skip and look for next */ 1953 /* cannot transfer to destroyed coros, skip and look for next */
1655 if (expect_false (next->flags & CF_DESTROYED)) 1954 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1656 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1955 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1657 else 1956 else
1658 { 1957 {
1659 next->flags &= ~CF_READY; 1958 next->flags &= ~CF_READY;
1660 --coro_nready; 1959 --coro_nready;
1661 1960
1662 return prepare_schedule_to (aTHX_ ta, next); 1961 prepare_schedule_to (aTHX_ ta, next);
1962 break;
1663 } 1963 }
1664 } 1964 }
1665 else 1965 else
1666 { 1966 {
1667 /* nothing to schedule: call the idle handler */ 1967 /* nothing to schedule: call the idle handler */
1968 if (SvROK (sv_idle)
1969 && SvOBJECT (SvRV (sv_idle)))
1970 {
1971 if (SvRV (sv_idle) == SvRV (coro_current))
1972 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1973
1974 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1975 api_ready (aTHX_ SvRV (sv_idle));
1976 --coro_nready;
1977 }
1978 else
1979 {
1980 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1668 dSP; 1981 dSP;
1669 1982
1670 ENTER; 1983 ENTER;
1671 SAVETMPS; 1984 SAVETMPS;
1672 1985
1673 PUSHMARK (SP); 1986 PUSHMARK (SP);
1674 PUTBACK; 1987 PUTBACK;
1675 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1988 call_sv (sv_idle, G_VOID | G_DISCARD);
1676 1989
1677 FREETMPS; 1990 FREETMPS;
1678 LEAVE; 1991 LEAVE;
1992 }
1679 } 1993 }
1680 } 1994 }
1681} 1995}
1682 1996
1683INLINE void 1997ecb_inline void
1684prepare_cede (pTHX_ struct coro_transfer_args *ta) 1998prepare_cede (pTHX_ struct coro_transfer_args *ta)
1685{ 1999{
1686 api_ready (aTHX_ coro_current); 2000 api_ready (aTHX_ coro_current);
1687 prepare_schedule (aTHX_ ta); 2001 prepare_schedule (aTHX_ ta);
1688} 2002}
1689 2003
1690INLINE void 2004ecb_inline void
1691prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2005prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1692{ 2006{
1693 SV *prev = SvRV (coro_current); 2007 SV *prev = SvRV (coro_current);
1694 2008
1695 if (coro_nready) 2009 if (coro_nready)
… …
1725{ 2039{
1726 struct coro_transfer_args ta; 2040 struct coro_transfer_args ta;
1727 2041
1728 prepare_cede (aTHX_ &ta); 2042 prepare_cede (aTHX_ &ta);
1729 2043
1730 if (expect_true (ta.prev != ta.next)) 2044 if (ecb_expect_true (ta.prev != ta.next))
1731 { 2045 {
1732 TRANSFER (ta, 1); 2046 TRANSFER (ta, 1);
1733 return 1; 2047 return 1;
1734 } 2048 }
1735 else 2049 else
… …
1754static void 2068static void
1755api_trace (pTHX_ SV *coro_sv, int flags) 2069api_trace (pTHX_ SV *coro_sv, int flags)
1756{ 2070{
1757 struct coro *coro = SvSTATE (coro_sv); 2071 struct coro *coro = SvSTATE (coro_sv);
1758 2072
2073 if (coro->flags & CF_RUNNING)
2074 croak ("cannot enable tracing on a running coroutine, caught");
2075
1759 if (flags & CC_TRACE) 2076 if (flags & CC_TRACE)
1760 { 2077 {
1761 if (!coro->cctx) 2078 if (!coro->cctx)
1762 coro->cctx = cctx_new_run (); 2079 coro->cctx = cctx_new_run ();
1763 else if (!(coro->cctx->flags & CC_TRACE)) 2080 else if (!(coro->cctx->flags & CC_TRACE))
1764 croak ("cannot enable tracing on coroutine with custom stack,"); 2081 croak ("cannot enable tracing on coroutine with custom stack, caught");
1765 2082
1766 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2083 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1767 } 2084 }
1768 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2085 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1769 { 2086 {
… …
1775 coro->slot->runops = RUNOPS_DEFAULT; 2092 coro->slot->runops = RUNOPS_DEFAULT;
1776 } 2093 }
1777} 2094}
1778 2095
1779static void 2096static void
2097coro_push_av (pTHX_ AV *av, I32 gimme_v)
2098{
2099 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2100 {
2101 dSP;
2102
2103 if (gimme_v == G_SCALAR)
2104 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2105 else
2106 {
2107 int i;
2108 EXTEND (SP, AvFILLp (av) + 1);
2109
2110 for (i = 0; i <= AvFILLp (av); ++i)
2111 PUSHs (AvARRAY (av)[i]);
2112 }
2113
2114 PUTBACK;
2115 }
2116}
2117
2118static void
2119coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2120{
2121 if (!coro->on_destroy)
2122 coro->on_destroy = newAV ();
2123
2124 av_push (coro->on_destroy, cb);
2125}
2126
2127static void
2128slf_destroy_join (pTHX_ struct CoroSLF *frame)
2129{
2130 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2131}
2132
2133static int
2134slf_check_join (pTHX_ struct CoroSLF *frame)
2135{
2136 struct coro *coro = (struct coro *)frame->data;
2137
2138 if (!coro->status)
2139 return 1;
2140
2141 frame->destroy = 0;
2142
2143 coro_push_av (aTHX_ coro->status, GIMME_V);
2144
2145 SvREFCNT_dec ((SV *)coro->hv);
2146
2147 return 0;
2148}
2149
2150static void
2151slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2152{
2153 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2154
2155 if (items > 1)
2156 croak ("join called with too many arguments");
2157
2158 if (coro->status)
2159 frame->prepare = prepare_nop;
2160 else
2161 {
2162 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2163 frame->prepare = prepare_schedule;
2164 }
2165
2166 frame->check = slf_check_join;
2167 frame->destroy = slf_destroy_join;
2168 frame->data = (void *)coro;
2169 SvREFCNT_inc (coro->hv);
2170}
2171
2172static void
1780coro_call_on_destroy (pTHX_ struct coro *coro) 2173coro_call_on_destroy (pTHX_ struct coro *coro)
1781{ 2174{
1782 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2175 AV *od = coro->on_destroy;
1783 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1784 2176
1785 if (on_destroyp) 2177 if (!od)
1786 { 2178 return;
1787 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1788 2179
1789 while (AvFILLp (on_destroy) >= 0) 2180 while (AvFILLp (od) >= 0)
2181 {
2182 SV *cb = sv_2mortal (av_pop (od));
2183
2184 /* coro hv's (and only hv's at the moment) are supported as well */
2185 if (SvSTATEhv_p (aTHX_ cb))
2186 api_ready (aTHX_ cb);
2187 else
1790 { 2188 {
1791 dSP; /* don't disturb outer sp */ 2189 dSP; /* don't disturb outer sp */
1792 SV *cb = av_pop (on_destroy);
1793
1794 PUSHMARK (SP); 2190 PUSHMARK (SP);
1795 2191
1796 if (statusp) 2192 if (coro->status)
1797 { 2193 {
1798 int i; 2194 PUTBACK;
1799 AV *status = (AV *)SvRV (*statusp); 2195 coro_push_av (aTHX_ coro->status, G_ARRAY);
1800 EXTEND (SP, AvFILLp (status) + 1); 2196 SPAGAIN;
1801
1802 for (i = 0; i <= AvFILLp (status); ++i)
1803 PUSHs (AvARRAY (status)[i]);
1804 } 2197 }
1805 2198
1806 PUTBACK; 2199 PUTBACK;
1807 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2200 call_sv (cb, G_VOID | G_DISCARD);
1808 } 2201 }
1809 } 2202 }
1810} 2203}
1811 2204
1812static void 2205static void
1813slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2206coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1814{ 2207{
2208 AV *av;
2209
2210 if (coro->status)
2211 {
2212 av = coro->status;
2213 av_clear (av);
2214 }
2215 else
2216 av = coro->status = newAV ();
2217
2218 /* items are actually not so common, so optimise for this case */
2219 if (items)
2220 {
1815 int i; 2221 int i;
1816 HV *hv = (HV *)SvRV (coro_current);
1817 AV *av = newAV ();
1818 2222
1819 av_extend (av, items - 1); 2223 av_extend (av, items - 1);
2224
1820 for (i = 0; i < items; ++i) 2225 for (i = 0; i < items; ++i)
1821 av_push (av, SvREFCNT_inc_NN (arg [i])); 2226 av_push (av, SvREFCNT_inc_NN (arg [i]));
2227 }
2228}
1822 2229
1823 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2230static void
1824 2231slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2232{
1825 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2233 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1826 api_ready (aTHX_ sv_manager); 2234 api_ready (aTHX_ sv_manager);
1827 2235
1828 frame->prepare = prepare_schedule; 2236 frame->prepare = prepare_schedule;
1829 frame->check = slf_check_repeat; 2237 frame->check = slf_check_repeat;
2238
2239 /* as a minor optimisation, we could unwind all stacks here */
2240 /* but that puts extra pressure on pp_slf, and is not worth much */
2241 /*coro_unwind_stacks (aTHX);*/
2242}
2243
2244static void
2245slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2246{
2247 HV *coro_hv = (HV *)SvRV (coro_current);
2248
2249 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2250 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2251}
2252
2253static void
2254slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2255{
2256 HV *coro_hv;
2257 struct coro *coro;
2258
2259 if (items <= 0)
2260 croak ("Coro::cancel called without coro object,");
2261
2262 coro = SvSTATE (arg [0]);
2263 coro_hv = coro->hv;
2264
2265 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2266
2267 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2268 {
2269 /* coro currently busy cancelling something, so just notify it */
2270 coro->slf_frame.data = (void *)coro;
2271
2272 frame->prepare = prepare_nop;
2273 frame->check = slf_check_nop;
2274 }
2275 else if (coro_hv == (HV *)SvRV (coro_current))
2276 {
2277 /* cancelling the current coro is allowed, and equals terminate */
2278 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2279 }
2280 else
2281 {
2282 struct coro *self = SvSTATE_current;
2283
2284 /* otherwise we cancel directly, purely for speed reasons
2285 * unfortunately, this requires some magic trickery, as
2286 * somebody else could cancel us, so we have to fight the cancellation.
2287 * this is ugly, and hopefully fully worth the extra speed.
2288 * besides, I can't get the slow-but-safe version working...
2289 */
2290 slf_frame.data = 0;
2291 self->flags |= CF_NOCANCEL;
2292 coro_state_destroy (aTHX_ coro);
2293 self->flags &= ~CF_NOCANCEL;
2294
2295 if (slf_frame.data)
2296 {
2297 /* while we were busy we have been cancelled, so terminate */
2298 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2299 }
2300 else
2301 {
2302 frame->prepare = prepare_nop;
2303 frame->check = slf_check_nop;
2304 }
2305 }
2306}
2307
2308static int
2309slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2310{
2311 frame->prepare = 0;
2312 coro_unwind_stacks (aTHX);
2313
2314 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2315
2316 return 1;
2317}
2318
2319static int
2320safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2321{
2322 if (coro->cctx)
2323 croak ("coro inside C callback, unable to cancel at this time, caught");
2324
2325 if (coro->flags & CF_NEW)
2326 {
2327 coro_set_status (aTHX_ coro, arg, items);
2328 coro_state_destroy (aTHX_ coro);
2329 }
2330 else
2331 {
2332 if (!coro->slf_frame.prepare)
2333 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2334
2335 slf_destroy (aTHX_ coro);
2336
2337 coro_set_status (aTHX_ coro, arg, items);
2338 coro->slf_frame.prepare = prepare_nop;
2339 coro->slf_frame.check = slf_check_safe_cancel;
2340
2341 api_ready (aTHX_ (SV *)coro->hv);
2342 }
2343
2344 return 1;
1830} 2345}
1831 2346
1832/*****************************************************************************/ 2347/*****************************************************************************/
1833/* async pool handler */ 2348/* async pool handler */
1834 2349
… …
1865slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2380slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1866{ 2381{
1867 HV *hv = (HV *)SvRV (coro_current); 2382 HV *hv = (HV *)SvRV (coro_current);
1868 struct coro *coro = SvSTATE_hv ((SV *)hv); 2383 struct coro *coro = SvSTATE_hv ((SV *)hv);
1869 2384
1870 if (expect_true (coro->saved_deffh)) 2385 if (ecb_expect_true (coro->saved_deffh))
1871 { 2386 {
1872 /* subsequent iteration */ 2387 /* subsequent iteration */
1873 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2388 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1874 coro->saved_deffh = 0; 2389 coro->saved_deffh = 0;
1875 2390
1876 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2391 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1877 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2392 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1878 { 2393 {
1879 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2394 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1880 coro->invoke_av = newAV (); 2395 return;
1881
1882 frame->prepare = prepare_nop;
1883 } 2396 }
1884 else 2397 else
1885 { 2398 {
1886 av_clear (GvAV (PL_defgv)); 2399 av_clear (GvAV (PL_defgv));
1887 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2400 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1912 2425
1913static void 2426static void
1914coro_rouse_callback (pTHX_ CV *cv) 2427coro_rouse_callback (pTHX_ CV *cv)
1915{ 2428{
1916 dXSARGS; 2429 dXSARGS;
1917 SV *data = (SV *)GENSUB_ARG; 2430 SV *data = (SV *)S_GENSUB_ARG;
1918 2431
1919 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2432 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1920 { 2433 {
1921 /* first call, set args */ 2434 /* first call, set args */
2435 SV *coro = SvRV (data);
1922 AV *av = newAV (); 2436 AV *av = newAV ();
1923 SV *coro = SvRV (data);
1924 2437
1925 SvRV_set (data, (SV *)av); 2438 SvRV_set (data, (SV *)av);
1926 api_ready (aTHX_ coro);
1927 SvREFCNT_dec (coro);
1928 2439
1929 /* better take a full copy of the arguments */ 2440 /* better take a full copy of the arguments */
1930 while (items--) 2441 while (items--)
1931 av_store (av, items, newSVsv (ST (items))); 2442 av_store (av, items, newSVsv (ST (items)));
2443
2444 api_ready (aTHX_ coro);
2445 SvREFCNT_dec (coro);
1932 } 2446 }
1933 2447
1934 XSRETURN_EMPTY; 2448 XSRETURN_EMPTY;
1935} 2449}
1936 2450
1937static int 2451static int
1938slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2452slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1939{ 2453{
1940 SV *data = (SV *)frame->data; 2454 SV *data = (SV *)frame->data;
1941 2455
1942 if (CORO_THROW) 2456 if (CORO_THROW)
1943 return 0; 2457 return 0;
1944 2458
1945 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2459 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1946 return 1; 2460 return 1;
… …
1953 2467
1954 EXTEND (SP, AvFILLp (av) + 1); 2468 EXTEND (SP, AvFILLp (av) + 1);
1955 for (i = 0; i <= AvFILLp (av); ++i) 2469 for (i = 0; i <= AvFILLp (av); ++i)
1956 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2470 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1957 2471
1958 /* we have stolen the elements, so ste length to zero and free */ 2472 /* we have stolen the elements, so set length to zero and free */
1959 AvFILLp (av) = -1; 2473 AvFILLp (av) = -1;
1960 av_undef (av); 2474 av_undef (av);
1961 2475
1962 PUTBACK; 2476 PUTBACK;
1963 } 2477 }
… …
1982 cb = sv_2mortal (coro->rouse_cb); 2496 cb = sv_2mortal (coro->rouse_cb);
1983 coro->rouse_cb = 0; 2497 coro->rouse_cb = 0;
1984 } 2498 }
1985 2499
1986 if (!SvROK (cb) 2500 if (!SvROK (cb)
1987 || SvTYPE (SvRV (cb)) != SVt_PVCV 2501 || SvTYPE (SvRV (cb)) != SVt_PVCV
1988 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2502 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1989 croak ("Coro::rouse_wait called with illegal callback argument,"); 2503 croak ("Coro::rouse_wait called with illegal callback argument,");
1990 2504
1991 { 2505 {
1992 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2506 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1993 SV *data = (SV *)GENSUB_ARG; 2507 SV *data = (SV *)S_GENSUB_ARG;
1994 2508
1995 frame->data = (void *)data; 2509 frame->data = (void *)data;
1996 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2510 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1997 frame->check = slf_check_rouse_wait; 2511 frame->check = slf_check_rouse_wait;
1998 } 2512 }
… …
2002coro_new_rouse_cb (pTHX) 2516coro_new_rouse_cb (pTHX)
2003{ 2517{
2004 HV *hv = (HV *)SvRV (coro_current); 2518 HV *hv = (HV *)SvRV (coro_current);
2005 struct coro *coro = SvSTATE_hv (hv); 2519 struct coro *coro = SvSTATE_hv (hv);
2006 SV *data = newRV_inc ((SV *)hv); 2520 SV *data = newRV_inc ((SV *)hv);
2007 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2521 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2008 2522
2009 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2523 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2010 SvREFCNT_dec (data); /* magicext increases the refcount */ 2524 SvREFCNT_dec (data); /* magicext increases the refcount */
2011 2525
2012 SvREFCNT_dec (coro->rouse_cb); 2526 SvREFCNT_dec (coro->rouse_cb);
… …
2109static void 2623static void
2110slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2624slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2111{ 2625{
2112 frame->prepare = prepare_cede_notself; 2626 frame->prepare = prepare_cede_notself;
2113 frame->check = slf_check_nop; 2627 frame->check = slf_check_nop;
2628}
2629
2630/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2631static void
2632slf_destroy (pTHX_ struct coro *coro)
2633{
2634 /* this callback is reserved for slf functions needing to do cleanup */
2635 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2636 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2637
2638 /*
2639 * The on_destroy above most likely is from an SLF call.
2640 * Since by definition the SLF call will not finish when we destroy
2641 * the coro, we will have to force-finish it here, otherwise
2642 * cleanup functions cannot call SLF functions.
2643 */
2644 coro->slf_frame.prepare = 0;
2114} 2645}
2115 2646
2116/* 2647/*
2117 * these not obviously related functions are all rolled into one 2648 * these not obviously related functions are all rolled into one
2118 * function to increase chances that they all will call transfer with the same 2649 * function to increase chances that they all will call transfer with the same
… …
2125 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2656 I32 checkmark; /* mark SP to see how many elements check has pushed */
2126 2657
2127 /* set up the slf frame, unless it has already been set-up */ 2658 /* set up the slf frame, unless it has already been set-up */
2128 /* the latter happens when a new coro has been started */ 2659 /* the latter happens when a new coro has been started */
2129 /* or when a new cctx was attached to an existing coroutine */ 2660 /* or when a new cctx was attached to an existing coroutine */
2130 if (expect_true (!slf_frame.prepare)) 2661 if (ecb_expect_true (!slf_frame.prepare))
2131 { 2662 {
2132 /* first iteration */ 2663 /* first iteration */
2133 dSP; 2664 dSP;
2134 SV **arg = PL_stack_base + TOPMARK + 1; 2665 SV **arg = PL_stack_base + TOPMARK + 1;
2135 int items = SP - arg; /* args without function object */ 2666 int items = SP - arg; /* args without function object */
… …
2176 while (slf_frame.check (aTHX_ &slf_frame)); 2707 while (slf_frame.check (aTHX_ &slf_frame));
2177 2708
2178 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2709 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2179 2710
2180 /* exception handling */ 2711 /* exception handling */
2181 if (expect_false (CORO_THROW)) 2712 if (ecb_expect_false (CORO_THROW))
2182 { 2713 {
2183 SV *exception = sv_2mortal (CORO_THROW); 2714 SV *exception = sv_2mortal (CORO_THROW);
2184 2715
2185 CORO_THROW = 0; 2716 CORO_THROW = 0;
2186 sv_setsv (ERRSV, exception); 2717 sv_setsv (ERRSV, exception);
2187 croak (0); 2718 croak (0);
2188 } 2719 }
2189 2720
2190 /* return value handling - mostly like entersub */ 2721 /* return value handling - mostly like entersub */
2191 /* make sure we put something on the stack in scalar context */ 2722 /* make sure we put something on the stack in scalar context */
2192 if (GIMME_V == G_SCALAR) 2723 if (GIMME_V == G_SCALAR
2724 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2193 { 2725 {
2194 dSP; 2726 dSP;
2195 SV **bot = PL_stack_base + checkmark; 2727 SV **bot = PL_stack_base + checkmark;
2196 2728
2197 if (sp == bot) /* too few, push undef */ 2729 if (sp == bot) /* too few, push undef */
2198 bot [1] = &PL_sv_undef; 2730 bot [1] = &PL_sv_undef;
2199 else if (sp != bot + 1) /* too many, take last one */ 2731 else /* too many, take last one */
2200 bot [1] = *sp; 2732 bot [1] = *sp;
2201 2733
2202 SP = bot + 1; 2734 SP = bot + 1;
2203 2735
2204 PUTBACK; 2736 PUTBACK;
… …
2237 if (PL_op->op_flags & OPf_STACKED) 2769 if (PL_op->op_flags & OPf_STACKED)
2238 { 2770 {
2239 if (items > slf_arga) 2771 if (items > slf_arga)
2240 { 2772 {
2241 slf_arga = items; 2773 slf_arga = items;
2242 free (slf_argv); 2774 Safefree (slf_argv);
2243 slf_argv = malloc (slf_arga * sizeof (SV *)); 2775 New (0, slf_argv, slf_arga, SV *);
2244 } 2776 }
2245 2777
2246 slf_argc = items; 2778 slf_argc = items;
2247 2779
2248 for (i = 0; i < items; ++i) 2780 for (i = 0; i < items; ++i)
… …
2250 } 2782 }
2251 else 2783 else
2252 slf_argc = 0; 2784 slf_argc = 0;
2253 2785
2254 PL_op->op_ppaddr = pp_slf; 2786 PL_op->op_ppaddr = pp_slf;
2255 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2787 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2256 2788
2257 PL_op = (OP *)&slf_restore; 2789 PL_op = (OP *)&slf_restore;
2790}
2791
2792/*****************************************************************************/
2793/* dynamic wind */
2794
2795static void
2796on_enterleave_call (pTHX_ SV *cb)
2797{
2798 dSP;
2799
2800 PUSHSTACK;
2801
2802 PUSHMARK (SP);
2803 PUTBACK;
2804 call_sv (cb, G_VOID | G_DISCARD);
2805 SPAGAIN;
2806
2807 POPSTACK;
2808}
2809
2810static SV *
2811coro_avp_pop_and_free (pTHX_ AV **avp)
2812{
2813 AV *av = *avp;
2814 SV *res = av_pop (av);
2815
2816 if (AvFILLp (av) < 0)
2817 {
2818 *avp = 0;
2819 SvREFCNT_dec (av);
2820 }
2821
2822 return res;
2823}
2824
2825static void
2826coro_pop_on_enter (pTHX_ void *coro)
2827{
2828 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2829 SvREFCNT_dec (cb);
2830}
2831
2832static void
2833coro_pop_on_leave (pTHX_ void *coro)
2834{
2835 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2836 on_enterleave_call (aTHX_ sv_2mortal (cb));
2258} 2837}
2259 2838
2260/*****************************************************************************/ 2839/*****************************************************************************/
2261/* PerlIO::cede */ 2840/* PerlIO::cede */
2262 2841
… …
2264{ 2843{
2265 PerlIOBuf base; 2844 PerlIOBuf base;
2266 NV next, every; 2845 NV next, every;
2267} PerlIOCede; 2846} PerlIOCede;
2268 2847
2269static IV 2848static IV ecb_cold
2270PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2849PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2271{ 2850{
2272 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2851 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2273 2852
2274 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2853 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2275 self->next = nvtime () + self->every; 2854 self->next = nvtime () + self->every;
2276 2855
2277 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2856 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2278} 2857}
2279 2858
2280static SV * 2859static SV * ecb_cold
2281PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2860PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2282{ 2861{
2283 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2862 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2284 2863
2285 return newSVnv (self->every); 2864 return newSVnv (self->every);
… …
2336/* Coro::Semaphore & Coro::Signal */ 2915/* Coro::Semaphore & Coro::Signal */
2337 2916
2338static SV * 2917static SV *
2339coro_waitarray_new (pTHX_ int count) 2918coro_waitarray_new (pTHX_ int count)
2340{ 2919{
2341 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2920 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2342 AV *av = newAV (); 2921 AV *av = newAV ();
2343 SV **ary; 2922 SV **ary;
2344 2923
2345 /* unfortunately, building manually saves memory */ 2924 /* unfortunately, building manually saves memory */
2346 Newx (ary, 2, SV *); 2925 Newx (ary, 2, SV *);
2347 AvALLOC (av) = ary; 2926 AvALLOC (av) = ary;
2927#if PERL_VERSION_ATLEAST (5,10,0)
2348 /*AvARRAY (av) = ary;*/ 2928 AvARRAY (av) = ary;
2929#else
2349 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2930 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2931 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2932 SvPVX ((SV *)av) = (char *)ary;
2933#endif
2350 AvMAX (av) = 1; 2934 AvMAX (av) = 1;
2351 AvFILLp (av) = 0; 2935 AvFILLp (av) = 0;
2352 ary [0] = newSViv (count); 2936 ary [0] = newSViv (count);
2353 2937
2354 return newRV_noinc ((SV *)av); 2938 return newRV_noinc ((SV *)av);
… …
2392 SvREFCNT_dec (cb); 2976 SvREFCNT_dec (cb);
2393 } 2977 }
2394} 2978}
2395 2979
2396static void 2980static void
2397coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2981coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2398{ 2982{
2399 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2983 /* call $sem->adjust (0) to possibly wake up some other waiters */
2400 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2984 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2401} 2985}
2402 2986
2403static int 2987static int
2404slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2988slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2405{ 2989{
2406 AV *av = (AV *)frame->data; 2990 AV *av = (AV *)frame->data;
2407 SV *count_sv = AvARRAY (av)[0]; 2991 SV *count_sv = AvARRAY (av)[0];
2992 SV *coro_hv = SvRV (coro_current);
2408 2993
2409 /* if we are about to throw, don't actually acquire the lock, just throw */ 2994 /* if we are about to throw, don't actually acquire the lock, just throw */
2410 if (CORO_THROW) 2995 if (CORO_THROW)
2411 return 0; 2996 return 0;
2412 else if (SvIVX (count_sv) > 0) 2997 else if (SvIVX (count_sv) > 0)
2413 { 2998 {
2414 SvSTATE_current->on_destroy = 0; 2999 frame->destroy = 0;
2415 3000
2416 if (acquire) 3001 if (acquire)
2417 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3002 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2418 else 3003 else
2419 coro_semaphore_adjust (aTHX_ av, 0); 3004 coro_semaphore_adjust (aTHX_ av, 0);
… …
2424 { 3009 {
2425 int i; 3010 int i;
2426 /* if we were woken up but can't down, we look through the whole */ 3011 /* if we were woken up but can't down, we look through the whole */
2427 /* waiters list and only add us if we aren't in there already */ 3012 /* waiters list and only add us if we aren't in there already */
2428 /* this avoids some degenerate memory usage cases */ 3013 /* this avoids some degenerate memory usage cases */
2429 3014 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2430 for (i = 1; i <= AvFILLp (av); ++i)
2431 if (AvARRAY (av)[i] == SvRV (coro_current)) 3015 if (AvARRAY (av)[i] == coro_hv)
2432 return 1; 3016 return 1;
2433 3017
2434 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3018 av_push (av, SvREFCNT_inc (coro_hv));
2435 return 1; 3019 return 1;
2436 } 3020 }
2437} 3021}
2438 3022
2439static int 3023static int
… …
2462 { 3046 {
2463 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3047 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2464 3048
2465 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3049 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2466 frame->prepare = prepare_schedule; 3050 frame->prepare = prepare_schedule;
2467
2468 /* to avoid race conditions when a woken-up coro gets terminated */ 3051 /* to avoid race conditions when a woken-up coro gets terminated */
2469 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3052 /* we arrange for a temporary on_destroy that calls adjust (0) */
2470 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3053 frame->destroy = coro_semaphore_destroy;
2471 } 3054 }
2472} 3055}
2473 3056
2474static void 3057static void
2475slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3058slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2483{ 3066{
2484 if (items >= 2) 3067 if (items >= 2)
2485 { 3068 {
2486 /* callback form */ 3069 /* callback form */
2487 AV *av = (AV *)SvRV (arg [0]); 3070 AV *av = (AV *)SvRV (arg [0]);
2488 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3071 SV *cb_cv = s_get_cv_croak (arg [1]);
2489 3072
2490 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3073 av_push (av, SvREFCNT_inc_NN (cb_cv));
2491 3074
2492 if (SvIVX (AvARRAY (av)[0]) > 0) 3075 if (SvIVX (AvARRAY (av)[0]) > 0)
2493 coro_semaphore_adjust (aTHX_ av, 0); 3076 coro_semaphore_adjust (aTHX_ av, 0);
2494 3077
2495 frame->prepare = prepare_nop; 3078 frame->prepare = prepare_nop;
… …
2519 AvARRAY (av)[0] = AvARRAY (av)[1]; 3102 AvARRAY (av)[0] = AvARRAY (av)[1];
2520 AvARRAY (av)[1] = cb; 3103 AvARRAY (av)[1] = cb;
2521 3104
2522 cb = av_shift (av); 3105 cb = av_shift (av);
2523 3106
3107 if (SvTYPE (cb) == SVt_PVCV)
3108 {
3109 dSP;
3110 PUSHMARK (SP);
3111 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3112 PUTBACK;
3113 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3114 }
3115 else
3116 {
2524 api_ready (aTHX_ cb); 3117 api_ready (aTHX_ cb);
2525 sv_setiv (cb, 0); /* signal waiter */ 3118 sv_setiv (cb, 0); /* signal waiter */
3119 }
3120
2526 SvREFCNT_dec (cb); 3121 SvREFCNT_dec (cb);
2527 3122
2528 --count; 3123 --count;
2529 } 3124 }
2530} 3125}
… …
2539static void 3134static void
2540slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3135slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2541{ 3136{
2542 AV *av = (AV *)SvRV (arg [0]); 3137 AV *av = (AV *)SvRV (arg [0]);
2543 3138
3139 if (items >= 2)
3140 {
3141 SV *cb_cv = s_get_cv_croak (arg [1]);
3142 av_push (av, SvREFCNT_inc_NN (cb_cv));
3143
2544 if (SvIVX (AvARRAY (av)[0])) 3144 if (SvIVX (AvARRAY (av)[0]))
3145 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3146
3147 frame->prepare = prepare_nop;
3148 frame->check = slf_check_nop;
3149 }
3150 else if (SvIVX (AvARRAY (av)[0]))
2545 { 3151 {
2546 SvIVX (AvARRAY (av)[0]) = 0; 3152 SvIVX (AvARRAY (av)[0]) = 0;
2547 frame->prepare = prepare_nop; 3153 frame->prepare = prepare_nop;
2548 frame->check = slf_check_nop; 3154 frame->check = slf_check_nop;
2549 } 3155 }
2550 else 3156 else
2551 { 3157 {
2552 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3158 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2553 3159
2554 av_push (av, waiter); 3160 av_push (av, waiter);
2555 3161
2556 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3162 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2557 frame->prepare = prepare_schedule; 3163 frame->prepare = prepare_schedule;
… …
2575 3181
2576static void 3182static void
2577coro_aio_callback (pTHX_ CV *cv) 3183coro_aio_callback (pTHX_ CV *cv)
2578{ 3184{
2579 dXSARGS; 3185 dXSARGS;
2580 AV *state = (AV *)GENSUB_ARG; 3186 AV *state = (AV *)S_GENSUB_ARG;
2581 SV *coro = av_pop (state); 3187 SV *coro = av_pop (state);
2582 SV *data_sv = newSV (sizeof (struct io_state)); 3188 SV *data_sv = newSV (sizeof (struct io_state));
2583 3189
2584 av_extend (state, items - 1); 3190 av_extend (state, items - 1);
2585 3191
… …
2670 dSP; 3276 dSP;
2671 3277
2672 static SV *prio_cv; 3278 static SV *prio_cv;
2673 static SV *prio_sv; 3279 static SV *prio_sv;
2674 3280
2675 if (expect_false (!prio_cv)) 3281 if (ecb_expect_false (!prio_cv))
2676 { 3282 {
2677 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3283 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2678 prio_sv = newSViv (0); 3284 prio_sv = newSViv (0);
2679 } 3285 }
2680 3286
… …
2699 3305
2700 for (i = 0; i < items; ++i) 3306 for (i = 0; i < items; ++i)
2701 PUSHs (arg [i]); 3307 PUSHs (arg [i]);
2702 3308
2703 /* now push the callback closure */ 3309 /* now push the callback closure */
2704 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3310 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2705 3311
2706 /* now call the AIO function - we assume our request is uncancelable */ 3312 /* now call the AIO function - we assume our request is uncancelable */
2707 PUTBACK; 3313 PUTBACK;
2708 call_sv ((SV *)req, G_VOID | G_DISCARD); 3314 call_sv ((SV *)req, G_VOID | G_DISCARD);
2709 } 3315 }
2710 3316
2711 /* now that the requets is going, we loop toll we have a result */ 3317 /* now that the request is going, we loop till we have a result */
2712 frame->data = (void *)state; 3318 frame->data = (void *)state;
2713 frame->prepare = prepare_schedule; 3319 frame->prepare = prepare_schedule;
2714 frame->check = slf_check_aio_req; 3320 frame->check = slf_check_aio_req;
2715} 3321}
2716 3322
… …
2723 3329
2724 XSRETURN_EMPTY; 3330 XSRETURN_EMPTY;
2725} 3331}
2726 3332
2727/*****************************************************************************/ 3333/*****************************************************************************/
3334
3335#if CORO_CLONE
3336# include "clone.c"
3337#endif
3338
3339/*****************************************************************************/
3340
3341static SV *
3342coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3343{
3344 SV *coro_sv;
3345 struct coro *coro;
3346 MAGIC *mg;
3347 HV *hv;
3348 SV *cb;
3349 int i;
3350
3351 if (argc > 0)
3352 {
3353 cb = s_get_cv_croak (argv [0]);
3354
3355 if (!is_coro)
3356 {
3357 if (CvISXSUB (cb))
3358 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3359
3360 if (!CvROOT (cb))
3361 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3362 }
3363 }
3364
3365 Newz (0, coro, 1, struct coro);
3366 coro->args = newAV ();
3367 coro->flags = CF_NEW;
3368
3369 if (coro_first) coro_first->prev = coro;
3370 coro->next = coro_first;
3371 coro_first = coro;
3372
3373 coro->hv = hv = newHV ();
3374 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3375 mg->mg_flags |= MGf_DUP;
3376 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3377
3378 if (argc > 0)
3379 {
3380 av_extend (coro->args, argc + is_coro - 1);
3381
3382 if (is_coro)
3383 {
3384 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3385 cb = (SV *)cv_coro_run;
3386 }
3387
3388 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3389
3390 for (i = 1; i < argc; i++)
3391 av_push (coro->args, newSVsv (argv [i]));
3392 }
3393
3394 return coro_sv;
3395}
3396
3397#ifndef __cplusplus
3398ecb_cold XS(boot_Coro__State);
3399#endif
3400
3401#if CORO_JIT
3402
3403static void ecb_noinline ecb_cold
3404pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3405{
3406 dSP;
3407 AV *av = newAV ();
3408
3409 av_store (av, 3, newSVuv (d));
3410 av_store (av, 2, newSVuv (c));
3411 av_store (av, 1, newSVuv (b));
3412 av_store (av, 0, newSVuv (a));
3413
3414 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3415
3416 PUTBACK;
3417}
3418
3419static void ecb_noinline ecb_cold
3420jit_init (pTHX)
3421{
3422 dSP;
3423 SV *load, *save;
3424 char *map_base;
3425 char *load_ptr, *save_ptr;
3426 STRLEN load_len, save_len, map_len;
3427 int count;
3428
3429 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3430
3431 PUSHMARK (SP);
3432 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3433 #include "state.h"
3434 count = call_pv ("Coro::State::_jit", G_ARRAY);
3435 SPAGAIN;
3436
3437 save = POPs; save_ptr = SvPVbyte (save, save_len);
3438 load = POPs; load_ptr = SvPVbyte (load, load_len);
3439
3440 map_len = load_len + save_len + 16;
3441
3442 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3443
3444 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3445
3446 load_perl_slots = (load_save_perl_slots_type)map_base;
3447 memcpy (map_base, load_ptr, load_len);
3448
3449 map_base += (load_len + 15) & ~15;
3450
3451 save_perl_slots = (load_save_perl_slots_type)map_base;
3452 memcpy (map_base, save_ptr, save_len);
3453
3454 /* we are good citizens and try to make the page read-only, so the evil evil */
3455 /* hackers might have it a bit more difficult */
3456 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3457
3458 PUTBACK;
3459 eval_pv ("undef &Coro::State::_jit", 1);
3460}
3461
3462#endif
2728 3463
2729MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3464MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2730 3465
2731PROTOTYPES: DISABLE 3466PROTOTYPES: DISABLE
2732 3467
… …
2737 coro_thx = PERL_GET_CONTEXT; 3472 coro_thx = PERL_GET_CONTEXT;
2738# endif 3473# endif
2739#endif 3474#endif
2740 BOOT_PAGESIZE; 3475 BOOT_PAGESIZE;
2741 3476
3477 /* perl defines these to check for existance first, but why it doesn't */
3478 /* just create them one at init time is not clear to me, except for */
3479 /* programs trying to delete them, but... */
3480 /* anyway, we declare this as invalid and make sure they are initialised here */
3481 DEFSV;
3482 ERRSV;
3483
3484 cctx_current = cctx_new_empty ();
3485
2742 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3486 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2743 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3487 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2744 3488
2745 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3489 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2746 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3490 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2765 3509
2766 { 3510 {
2767 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3511 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2768 3512
2769 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3513 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2770 hv_store_ent (PL_custom_op_names, slf, 3514 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2771 newSVpv ("coro_slf", 0), 0);
2772 3515
2773 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3516 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2774 hv_store_ent (PL_custom_op_descs, slf, 3517 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2775 newSVpv ("coro schedule like function", 0), 0);
2776 } 3518 }
2777 3519
2778 coroapi.ver = CORO_API_VERSION; 3520 coroapi.ver = CORO_API_VERSION;
2779 coroapi.rev = CORO_API_REVISION; 3521 coroapi.rev = CORO_API_REVISION;
2780 3522
… …
2785 coroapi.prepare_nop = prepare_nop; 3527 coroapi.prepare_nop = prepare_nop;
2786 coroapi.prepare_schedule = prepare_schedule; 3528 coroapi.prepare_schedule = prepare_schedule;
2787 coroapi.prepare_cede = prepare_cede; 3529 coroapi.prepare_cede = prepare_cede;
2788 coroapi.prepare_cede_notself = prepare_cede_notself; 3530 coroapi.prepare_cede_notself = prepare_cede_notself;
2789 3531
2790 { 3532 time_init (aTHX);
2791 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2792 3533
2793 if (!svp) croak ("Time::HiRes is required");
2794 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2795
2796 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2797 }
2798
2799 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3534 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3535#if CORO_JIT
3536 PUTBACK;
3537 jit_init (aTHX);
3538 SPAGAIN;
3539#endif
2800} 3540}
2801 3541
2802SV * 3542SV *
2803new (char *klass, ...) 3543new (SV *klass, ...)
2804 ALIAS: 3544 ALIAS:
2805 Coro::new = 1 3545 Coro::new = 1
2806 CODE: 3546 CODE:
2807{ 3547 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2808 struct coro *coro; 3548 OUTPUT:
2809 MAGIC *mg;
2810 HV *hv;
2811 CV *cb;
2812 int i;
2813
2814 if (items > 1)
2815 {
2816 cb = coro_sv_2cv (aTHX_ ST (1));
2817
2818 if (!ix)
2819 {
2820 if (CvISXSUB (cb))
2821 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2822
2823 if (!CvROOT (cb))
2824 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2825 }
2826 }
2827
2828 Newz (0, coro, 1, struct coro);
2829 coro->args = newAV ();
2830 coro->flags = CF_NEW;
2831
2832 if (coro_first) coro_first->prev = coro;
2833 coro->next = coro_first;
2834 coro_first = coro;
2835
2836 coro->hv = hv = newHV ();
2837 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2838 mg->mg_flags |= MGf_DUP;
2839 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2840
2841 if (items > 1)
2842 {
2843 av_extend (coro->args, items - 1 + ix - 1);
2844
2845 if (ix)
2846 {
2847 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2848 cb = cv_coro_run;
2849 }
2850
2851 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2852
2853 for (i = 2; i < items; i++)
2854 av_push (coro->args, newSVsv (ST (i)));
2855 }
2856}
2857 OUTPUT:
2858 RETVAL 3549 RETVAL
2859 3550
2860void 3551void
2861transfer (...) 3552transfer (...)
2862 PROTOTYPE: $$ 3553 PROTOTYPE: $$
2863 CODE: 3554 CODE:
2864 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3555 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2865 3556
2866bool
2867_destroy (SV *coro_sv)
2868 CODE:
2869 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2870 OUTPUT:
2871 RETVAL
2872
2873void 3557void
2874_exit (int code) 3558_exit (int code)
2875 PROTOTYPE: $ 3559 PROTOTYPE: $
2876 CODE: 3560 CODE:
2877 _exit (code); 3561 _exit (code);
3562
3563SV *
3564clone (Coro::State coro)
3565 CODE:
3566{
3567#if CORO_CLONE
3568 struct coro *ncoro = coro_clone (aTHX_ coro);
3569 MAGIC *mg;
3570 /* TODO: too much duplication */
3571 ncoro->hv = newHV ();
3572 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3573 mg->mg_flags |= MGf_DUP;
3574 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3575#else
3576 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3577#endif
3578}
3579 OUTPUT:
3580 RETVAL
2878 3581
2879int 3582int
2880cctx_stacksize (int new_stacksize = 0) 3583cctx_stacksize (int new_stacksize = 0)
2881 PROTOTYPE: ;$ 3584 PROTOTYPE: ;$
2882 CODE: 3585 CODE:
… …
2918void 3621void
2919list () 3622list ()
2920 PROTOTYPE: 3623 PROTOTYPE:
2921 PPCODE: 3624 PPCODE:
2922{ 3625{
2923 struct coro *coro; 3626 struct coro *coro;
2924 for (coro = coro_first; coro; coro = coro->next) 3627 for (coro = coro_first; coro; coro = coro->next)
2925 if (coro->hv) 3628 if (coro->hv)
2926 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3629 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2927} 3630}
2928 3631
… …
2932 eval = 1 3635 eval = 1
2933 CODE: 3636 CODE:
2934{ 3637{
2935 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3638 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2936 { 3639 {
2937 struct coro temp; 3640 struct coro *current = SvSTATE_current;
3641 struct CoroSLF slf_save;
2938 3642
2939 if (!(coro->flags & CF_RUNNING)) 3643 if (current != coro)
2940 { 3644 {
2941 PUTBACK; 3645 PUTBACK;
2942 save_perl (aTHX_ &temp); 3646 save_perl (aTHX_ current);
2943 load_perl (aTHX_ coro); 3647 load_perl (aTHX_ coro);
3648 /* the coro is most likely in an active SLF call.
3649 * while not strictly required (the code we execute is
3650 * not allowed to call any SLF functions), it's cleaner
3651 * to reinitialise the slf_frame and restore it later.
3652 * This might one day allow us to actually do SLF calls
3653 * from code executed here.
3654 */
3655 slf_save = slf_frame;
3656 slf_frame.prepare = 0;
3657 SPAGAIN;
2944 } 3658 }
2945 3659
2946 {
2947 dSP;
2948 ENTER;
2949 SAVETMPS;
2950 PUTBACK;
2951 PUSHSTACK; 3660 PUSHSTACK;
3661
2952 PUSHMARK (SP); 3662 PUSHMARK (SP);
3663 PUTBACK;
2953 3664
2954 if (ix) 3665 if (ix)
2955 eval_sv (coderef, 0); 3666 eval_sv (coderef, 0);
2956 else 3667 else
2957 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3668 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2958 3669
2959 POPSTACK; 3670 POPSTACK;
2960 SPAGAIN; 3671 SPAGAIN;
2961 FREETMPS;
2962 LEAVE;
2963 PUTBACK;
2964 }
2965 3672
2966 if (!(coro->flags & CF_RUNNING)) 3673 if (current != coro)
2967 { 3674 {
3675 PUTBACK;
3676 slf_frame = slf_save;
2968 save_perl (aTHX_ coro); 3677 save_perl (aTHX_ coro);
2969 load_perl (aTHX_ &temp); 3678 load_perl (aTHX_ current);
2970 SPAGAIN; 3679 SPAGAIN;
2971 } 3680 }
2972 } 3681 }
2973} 3682}
2974 3683
… …
2977 PROTOTYPE: $ 3686 PROTOTYPE: $
2978 ALIAS: 3687 ALIAS:
2979 is_ready = CF_READY 3688 is_ready = CF_READY
2980 is_running = CF_RUNNING 3689 is_running = CF_RUNNING
2981 is_new = CF_NEW 3690 is_new = CF_NEW
2982 is_destroyed = CF_DESTROYED 3691 is_destroyed = CF_ZOMBIE
3692 is_zombie = CF_ZOMBIE
3693 is_suspended = CF_SUSPENDED
2983 CODE: 3694 CODE:
2984 RETVAL = boolSV (coro->flags & ix); 3695 RETVAL = boolSV (coro->flags & ix);
2985 OUTPUT: 3696 OUTPUT:
2986 RETVAL 3697 RETVAL
2987 3698
2988void 3699void
2989throw (Coro::State self, SV *throw = &PL_sv_undef) 3700throw (SV *self, SV *exception = &PL_sv_undef)
2990 PROTOTYPE: $;$ 3701 PROTOTYPE: $;$
2991 CODE: 3702 CODE:
2992{ 3703{
3704 struct coro *coro = SvSTATE (self);
2993 struct coro *current = SvSTATE_current; 3705 struct coro *current = SvSTATE_current;
2994 SV **throwp = self == current ? &CORO_THROW : &self->except; 3706 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2995 SvREFCNT_dec (*throwp); 3707 SvREFCNT_dec (*exceptionp);
2996 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3708 SvGETMAGIC (exception);
3709 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3710
3711 api_ready (aTHX_ self);
2997} 3712}
2998 3713
2999void 3714void
3000api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3715api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3001 PROTOTYPE: $;$ 3716 PROTOTYPE: $;$
… …
3003 3718
3004SV * 3719SV *
3005has_cctx (Coro::State coro) 3720has_cctx (Coro::State coro)
3006 PROTOTYPE: $ 3721 PROTOTYPE: $
3007 CODE: 3722 CODE:
3008 RETVAL = boolSV (!!coro->cctx); 3723 /* maybe manage the running flag differently */
3724 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3009 OUTPUT: 3725 OUTPUT:
3010 RETVAL 3726 RETVAL
3011 3727
3012int 3728int
3013is_traced (Coro::State coro) 3729is_traced (Coro::State coro)
… …
3033 3749
3034void 3750void
3035force_cctx () 3751force_cctx ()
3036 PROTOTYPE: 3752 PROTOTYPE:
3037 CODE: 3753 CODE:
3038 SvSTATE_current->cctx->idle_sp = 0; 3754 cctx_current->idle_sp = 0;
3039 3755
3040void 3756void
3041swap_defsv (Coro::State self) 3757swap_defsv (Coro::State self)
3042 PROTOTYPE: $ 3758 PROTOTYPE: $
3043 ALIAS: 3759 ALIAS:
… …
3051 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3767 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3052 3768
3053 SV *tmp = *src; *src = *dst; *dst = tmp; 3769 SV *tmp = *src; *src = *dst; *dst = tmp;
3054 } 3770 }
3055 3771
3772void
3773cancel (Coro::State self)
3774 CODE:
3775 coro_state_destroy (aTHX_ self);
3776
3777SV *
3778enable_times (int enabled = enable_times)
3779 CODE:
3780{
3781 RETVAL = boolSV (enable_times);
3782
3783 if (enabled != enable_times)
3784 {
3785 enable_times = enabled;
3786
3787 coro_times_update ();
3788 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3789 }
3790}
3791 OUTPUT:
3792 RETVAL
3793
3794void
3795times (Coro::State self)
3796 PPCODE:
3797{
3798 struct coro *current = SvSTATE (coro_current);
3799
3800 if (ecb_expect_false (current == self))
3801 {
3802 coro_times_update ();
3803 coro_times_add (SvSTATE (coro_current));
3804 }
3805
3806 EXTEND (SP, 2);
3807 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3808 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3809
3810 if (ecb_expect_false (current == self))
3811 coro_times_sub (SvSTATE (coro_current));
3812}
3813
3814void
3815swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3816 CODE:
3817{
3818 struct coro *current = SvSTATE_current;
3819
3820 if (current == coro)
3821 SWAP_SVS (current);
3822
3823 if (!coro->swap_sv)
3824 coro->swap_sv = newAV ();
3825
3826 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3827 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3828
3829 if (current == coro)
3830 SWAP_SVS (current);
3831}
3832
3056 3833
3057MODULE = Coro::State PACKAGE = Coro 3834MODULE = Coro::State PACKAGE = Coro
3058 3835
3059BOOT: 3836BOOT:
3060{ 3837{
3061 int i;
3062
3063 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3838 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3064 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3839 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3065 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3840 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3066 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3067 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3841 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3068 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3842 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3069 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3843 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3070 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3844 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3845 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3071 3846
3072 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3847 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3073 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3848 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3074 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3849 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3075 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3850 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3076 3851
3077 coro_stash = gv_stashpv ("Coro", TRUE); 3852 coro_stash = gv_stashpv ("Coro", TRUE);
3078 3853
3079 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3854 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3080 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3855 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3081 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3856 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3082 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3857 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3083 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3858 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3084 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3859 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3085
3086 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3087 coro_ready[i] = newAV ();
3088 3860
3089 { 3861 {
3090 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3862 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3091 3863
3092 coroapi.schedule = api_schedule; 3864 coroapi.schedule = api_schedule;
… …
3102 sv_setiv (sv, (IV)&coroapi); 3874 sv_setiv (sv, (IV)&coroapi);
3103 SvREADONLY_on (sv); 3875 SvREADONLY_on (sv);
3104 } 3876 }
3105} 3877}
3106 3878
3879SV *
3880async (...)
3881 PROTOTYPE: &@
3882 CODE:
3883 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3884 api_ready (aTHX_ RETVAL);
3885 OUTPUT:
3886 RETVAL
3887
3888void
3889_destroy (Coro::State coro)
3890 CODE:
3891 /* used by the manager thread */
3892 coro_state_destroy (aTHX_ coro);
3893
3894void
3895on_destroy (Coro::State coro, SV *cb)
3896 CODE:
3897 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3898
3899void
3900join (...)
3901 CODE:
3902 CORO_EXECUTE_SLF_XS (slf_init_join);
3903
3107void 3904void
3108terminate (...) 3905terminate (...)
3109 CODE: 3906 CODE:
3110 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3907 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3111 3908
3112void 3909void
3910cancel (...)
3911 CODE:
3912 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3913
3914int
3915safe_cancel (Coro::State self, ...)
3916 C_ARGS: aTHX_ self, &ST (1), items - 1
3917
3918void
3113schedule (...) 3919schedule (...)
3114 CODE: 3920 CODE:
3115 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3921 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3116 3922
3117void 3923void
… …
3131 3937
3132void 3938void
3133cede_notself (...) 3939cede_notself (...)
3134 CODE: 3940 CODE:
3135 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3941 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3136
3137void
3138_cancel (Coro::State self)
3139 CODE:
3140 coro_state_destroy (aTHX_ self);
3141 coro_call_on_destroy (aTHX_ self);
3142 3942
3143void 3943void
3144_set_current (SV *current) 3944_set_current (SV *current)
3145 PROTOTYPE: $ 3945 PROTOTYPE: $
3146 CODE: 3946 CODE:
… …
3150void 3950void
3151_set_readyhook (SV *hook) 3951_set_readyhook (SV *hook)
3152 PROTOTYPE: $ 3952 PROTOTYPE: $
3153 CODE: 3953 CODE:
3154 SvREFCNT_dec (coro_readyhook); 3954 SvREFCNT_dec (coro_readyhook);
3955 SvGETMAGIC (hook);
3956 if (SvOK (hook))
3957 {
3155 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3958 coro_readyhook = newSVsv (hook);
3959 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3960 }
3961 else
3962 {
3963 coro_readyhook = 0;
3964 CORO_READYHOOK = 0;
3965 }
3156 3966
3157int 3967int
3158prio (Coro::State coro, int newprio = 0) 3968prio (Coro::State coro, int newprio = 0)
3159 PROTOTYPE: $;$ 3969 PROTOTYPE: $;$
3160 ALIAS: 3970 ALIAS:
… …
3166 if (items > 1) 3976 if (items > 1)
3167 { 3977 {
3168 if (ix) 3978 if (ix)
3169 newprio = coro->prio - newprio; 3979 newprio = coro->prio - newprio;
3170 3980
3171 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3981 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3172 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3982 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3173 3983
3174 coro->prio = newprio; 3984 coro->prio = newprio;
3175 } 3985 }
3176} 3986}
3177 OUTPUT: 3987 OUTPUT:
… …
3192 RETVAL = coro_nready; 4002 RETVAL = coro_nready;
3193 OUTPUT: 4003 OUTPUT:
3194 RETVAL 4004 RETVAL
3195 4005
3196void 4006void
4007suspend (Coro::State self)
4008 PROTOTYPE: $
4009 CODE:
4010 self->flags |= CF_SUSPENDED;
4011
4012void
4013resume (Coro::State self)
4014 PROTOTYPE: $
4015 CODE:
4016 self->flags &= ~CF_SUSPENDED;
4017
4018void
3197_pool_handler (...) 4019_pool_handler (...)
3198 CODE: 4020 CODE:
3199 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 4021 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3200 4022
3201void 4023void
… …
3212 for (i = 1; i < items; ++i) 4034 for (i = 1; i < items; ++i)
3213 av_push (av, SvREFCNT_inc_NN (ST (i))); 4035 av_push (av, SvREFCNT_inc_NN (ST (i)));
3214 4036
3215 if ((SV *)hv == &PL_sv_undef) 4037 if ((SV *)hv == &PL_sv_undef)
3216 { 4038 {
3217 PUSHMARK (SP); 4039 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3218 EXTEND (SP, 2);
3219 PUSHs (sv_Coro);
3220 PUSHs ((SV *)cv_pool_handler);
3221 PUTBACK;
3222 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3223 SPAGAIN;
3224
3225 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4040 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4041 SvREFCNT_dec (sv);
3226 } 4042 }
3227 4043
3228 { 4044 {
3229 struct coro *coro = SvSTATE_hv (hv); 4045 struct coro *coro = SvSTATE_hv (hv);
3230 4046
… …
3254rouse_wait (...) 4070rouse_wait (...)
3255 PROTOTYPE: ;$ 4071 PROTOTYPE: ;$
3256 PPCODE: 4072 PPCODE:
3257 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4073 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3258 4074
4075void
4076on_enter (SV *block)
4077 ALIAS:
4078 on_leave = 1
4079 PROTOTYPE: &
4080 CODE:
4081{
4082 struct coro *coro = SvSTATE_current;
4083 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4084
4085 block = s_get_cv_croak (block);
4086
4087 if (!*avp)
4088 *avp = newAV ();
4089
4090 av_push (*avp, SvREFCNT_inc (block));
4091
4092 if (!ix)
4093 on_enterleave_call (aTHX_ block);
4094
4095 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4096 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4097 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4098}
4099
3259 4100
3260MODULE = Coro::State PACKAGE = PerlIO::cede 4101MODULE = Coro::State PACKAGE = PerlIO::cede
3261 4102
3262BOOT: 4103BOOT:
3263 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4104 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3266MODULE = Coro::State PACKAGE = Coro::Semaphore 4107MODULE = Coro::State PACKAGE = Coro::Semaphore
3267 4108
3268SV * 4109SV *
3269new (SV *klass, SV *count = 0) 4110new (SV *klass, SV *count = 0)
3270 CODE: 4111 CODE:
4112{
4113 int semcnt = 1;
4114
4115 if (count)
4116 {
4117 SvGETMAGIC (count);
4118
4119 if (SvOK (count))
4120 semcnt = SvIV (count);
4121 }
4122
3271 RETVAL = sv_bless ( 4123 RETVAL = sv_bless (
3272 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4124 coro_waitarray_new (aTHX_ semcnt),
3273 GvSTASH (CvGV (cv)) 4125 GvSTASH (CvGV (cv))
3274 ); 4126 );
4127}
3275 OUTPUT: 4128 OUTPUT:
3276 RETVAL 4129 RETVAL
3277 4130
3278# helper for Coro::Channel 4131# helper for Coro::Channel and others
3279SV * 4132SV *
3280_alloc (int count) 4133_alloc (int count)
3281 CODE: 4134 CODE:
3282 RETVAL = coro_waitarray_new (aTHX_ count); 4135 RETVAL = coro_waitarray_new (aTHX_ count);
3283 OUTPUT: 4136 OUTPUT:
… …
3325 XSRETURN_NO; 4178 XSRETURN_NO;
3326} 4179}
3327 4180
3328void 4181void
3329waiters (SV *self) 4182waiters (SV *self)
3330 PPCODE: 4183 PPCODE:
3331{ 4184{
3332 AV *av = (AV *)SvRV (self); 4185 AV *av = (AV *)SvRV (self);
3333 int wcount = AvFILLp (av) + 1 - 1; 4186 int wcount = AvFILLp (av) + 1 - 1;
3334 4187
3335 if (GIMME_V == G_SCALAR) 4188 if (GIMME_V == G_SCALAR)
… …
3341 for (i = 1; i <= wcount; ++i) 4194 for (i = 1; i <= wcount; ++i)
3342 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4195 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3343 } 4196 }
3344} 4197}
3345 4198
4199MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4200
4201void
4202_may_delete (SV *sem, int count, unsigned int extra_refs)
4203 PPCODE:
4204{
4205 AV *av = (AV *)SvRV (sem);
4206
4207 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4208 && AvFILLp (av) == 0 /* no waiters, just count */
4209 && SvIV (AvARRAY (av)[0]) == count)
4210 XSRETURN_YES;
4211
4212 XSRETURN_NO;
4213}
4214
3346MODULE = Coro::State PACKAGE = Coro::Signal 4215MODULE = Coro::State PACKAGE = Coro::Signal
3347 4216
3348SV * 4217SV *
3349new (SV *klass) 4218new (SV *klass)
3350 CODE: 4219 CODE:
… …
3362 4231
3363void 4232void
3364broadcast (SV *self) 4233broadcast (SV *self)
3365 CODE: 4234 CODE:
3366{ 4235{
3367 AV *av = (AV *)SvRV (self); 4236 AV *av = (AV *)SvRV (self);
3368 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4237 coro_signal_wake (aTHX_ av, AvFILLp (av));
3369} 4238}
3370 4239
3371void 4240void
3372send (SV *self) 4241send (SV *self)
… …
3380 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4249 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3381} 4250}
3382 4251
3383IV 4252IV
3384awaited (SV *self) 4253awaited (SV *self)
3385 CODE: 4254 CODE:
3386 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4255 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3387 OUTPUT: 4256 OUTPUT:
3388 RETVAL 4257 RETVAL
3389 4258
3390 4259
… …
3395 4264
3396void 4265void
3397_schedule (...) 4266_schedule (...)
3398 CODE: 4267 CODE:
3399{ 4268{
3400 static int incede; 4269 static int incede;
3401 4270
3402 api_cede_notself (aTHX); 4271 api_cede_notself (aTHX);
3403 4272
3404 ++incede; 4273 ++incede;
3405 while (coro_nready >= incede && api_cede (aTHX)) 4274 while (coro_nready >= incede && api_cede (aTHX))
… …
3421 4290
3422void 4291void
3423_register (char *target, char *proto, SV *req) 4292_register (char *target, char *proto, SV *req)
3424 CODE: 4293 CODE:
3425{ 4294{
3426 CV *req_cv = coro_sv_2cv (aTHX_ req); 4295 SV *req_cv = s_get_cv_croak (req);
3427 /* newXSproto doesn't return the CV on 5.8 */ 4296 /* newXSproto doesn't return the CV on 5.8 */
3428 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4297 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3429 sv_setpv ((SV *)slf_cv, proto); 4298 sv_setpv ((SV *)slf_cv, proto);
3430 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4299 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3431} 4300}
3432 4301
4302MODULE = Coro::State PACKAGE = Coro::Select
4303
4304void
4305patch_pp_sselect ()
4306 CODE:
4307 if (!coro_old_pp_sselect)
4308 {
4309 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4310 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4311 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4312 }
4313
4314void
4315unpatch_pp_sselect ()
4316 CODE:
4317 if (coro_old_pp_sselect)
4318 {
4319 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4320 coro_old_pp_sselect = 0;
4321 }
4322

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