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Comparing Coro/Coro/State.xs (file contents):
Revision 1.304 by root, Wed Nov 19 08:22:48 2008 UTC vs.
Revision 1.439 by root, Tue Nov 19 05:16:01 2013 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
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 1
32# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33#else
34typedef AV PADNAMELIST;
35# if !PERL_VERSION_ATLEAST(5,8,0)
36typedef AV PADLIST;
37typedef AV PAD;
38# endif
39# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
40# define PadlistMAX(pl) AvFILLp (pl)
41# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42# define PadARRAY AvARRAY
43# define PadMAX AvFILLp
44# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
45#endif
46
47/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
48/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
49#if PERL_VERSION_ATLEAST(5,19,0)
50# define SVt_BIND SVt_IV
51#endif
52
53#if defined(_WIN32)
54# undef HAS_GETTIMEOFDAY
18# undef setjmp 55# undef setjmp
19# undef longjmp 56# undef longjmp
20# undef _exit 57# undef _exit
21# define setjmp _setjmp /* deep magic */ 58# define setjmp _setjmp /* deep magic */
22#else 59#else
23# include <inttypes.h> /* most portable stdint.h */ 60# include <inttypes.h> /* most portable stdint.h */
24#endif 61#endif
25 62
26#ifdef HAVE_MMAP
27# include <unistd.h>
28# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON
32# else
33# undef HAVE_MMAP
34# endif
35# endif
36# include <limits.h>
37# ifndef PAGESIZE
38# define PAGESIZE pagesize
39# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
40static long pagesize;
41# else
42# define BOOT_PAGESIZE (void)0
43# endif
44#else
45# define PAGESIZE 0
46# define BOOT_PAGESIZE (void)0
47#endif
48
49#if CORO_USE_VALGRIND
50# include <valgrind/valgrind.h>
51#endif
52
53/* the maximum number of idle cctx that will be pooled */ 63/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 64static int cctx_max_idle = 4;
55 65
56#define PERL_VERSION_ATLEAST(a,b,c) \ 66#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 67# define HAS_SCOPESTACK_NAME 1
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif
108
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD
111#endif
112
113#ifndef CORO_STACKGUARD
114# define CORO_STACKGUARD 0
115#endif 68#endif
116 69
117/* prefer perl internal functions over our own? */ 70/* prefer perl internal functions over our own? */
118#ifndef CORO_PREFER_PERL_FUNCTIONS 71#ifndef CORO_PREFER_PERL_FUNCTIONS
119# define CORO_PREFER_PERL_FUNCTIONS 0 72# define CORO_PREFER_PERL_FUNCTIONS 0
… …
127#else 80#else
128# define dSTACKLEVEL volatile void *stacklevel 81# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel) 82# define STACKLEVEL ((void *)&stacklevel)
130#endif 83#endif
131 84
132#define IN_DESTRUCT (PL_main_cv == Nullcv) 85#define IN_DESTRUCT PL_dirty
133
134#if __GNUC__ >= 3
135# define attribute(x) __attribute__(x)
136# define expect(expr,value) __builtin_expect ((expr),(value))
137# define INLINE static inline
138#else
139# define attribute(x)
140# define expect(expr,value) (expr)
141# define INLINE static
142#endif
143
144#define expect_false(expr) expect ((expr) != 0, 0)
145#define expect_true(expr) expect ((expr) != 0, 1)
146
147#define NOINLINE attribute ((noinline))
148 86
149#include "CoroAPI.h" 87#include "CoroAPI.h"
150#define GCoroAPI (&coroapi) /* very sneaky */ 88#define GCoroAPI (&coroapi) /* very sneaky */
151 89
152#ifdef USE_ITHREADS 90#ifdef USE_ITHREADS
153# if CORO_PTHREAD 91# if CORO_PTHREAD
154static void *coro_thx; 92static void *coro_thx;
155# endif 93# endif
156#endif 94#endif
157 95
96#ifdef __linux
97# include <time.h> /* for timespec */
98# include <syscall.h> /* for SYS_* */
99# ifdef SYS_clock_gettime
100# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
101# define CORO_CLOCK_MONOTONIC 1
102# define CORO_CLOCK_THREAD_CPUTIME_ID 3
103# endif
104#endif
105
158static double (*nvtime)(); /* so why doesn't it take void? */ 106static double (*nvtime)(); /* so why doesn't it take void? */
107static void (*u2time)(pTHX_ UV ret[2]);
159 108
160/* we hijack an hopefully unused CV flag for our purposes */ 109/* we hijack an hopefully unused CV flag for our purposes */
161#define CVf_SLF 0x4000 110#define CVf_SLF 0x4000
162static OP *pp_slf (pTHX); 111static OP *pp_slf (pTHX);
112static void slf_destroy (pTHX_ struct coro *coro);
163 113
164static U32 cctx_gen; 114static U32 cctx_gen;
165static size_t cctx_stacksize = CORO_STACKSIZE; 115static size_t cctx_stacksize = CORO_STACKSIZE;
166static struct CoroAPI coroapi; 116static struct CoroAPI coroapi;
167static AV *main_mainstack; /* used to differentiate between $main and others */ 117static AV *main_mainstack; /* used to differentiate between $main and others */
168static JMPENV *main_top_env; 118static JMPENV *main_top_env;
169static HV *coro_state_stash, *coro_stash; 119static HV *coro_state_stash, *coro_stash;
170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 120static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171 121
122static AV *av_destroy; /* destruction queue */
123static SV *sv_manager; /* the manager coro */
124static SV *sv_idle; /* $Coro::idle */
125
172static GV *irsgv; /* $/ */ 126static GV *irsgv; /* $/ */
173static GV *stdoutgv; /* *STDOUT */ 127static GV *stdoutgv; /* *STDOUT */
174static SV *rv_diehook; 128static SV *rv_diehook;
175static SV *rv_warnhook; 129static SV *rv_warnhook;
176static HV *hv_sig; /* %SIG */ 130static HV *hv_sig; /* %SIG */
177 131
178/* async_pool helper stuff */ 132/* async_pool helper stuff */
179static SV *sv_pool_rss; 133static SV *sv_pool_rss;
180static SV *sv_pool_size; 134static SV *sv_pool_size;
135static SV *sv_async_pool_idle; /* description string */
181static AV *av_async_pool; 136static AV *av_async_pool; /* idle pool */
137static SV *sv_Coro; /* class string */
138static CV *cv_pool_handler;
182 139
183/* Coro::AnyEvent */ 140/* Coro::AnyEvent */
184static SV *sv_activity; 141static SV *sv_activity;
185 142
143/* enable processtime/realtime profiling */
144static char enable_times;
145typedef U32 coro_ts[2];
146static coro_ts time_real, time_cpu;
147static char times_valid;
148
186static struct coro_cctx *cctx_first; 149static struct coro_cctx *cctx_first;
187static int cctx_count, cctx_idle; 150static int cctx_count, cctx_idle;
188 151
189enum { 152enum
153{
190 CC_MAPPED = 0x01, 154 CC_MAPPED = 0x01,
191 CC_NOREUSE = 0x02, /* throw this away after tracing */ 155 CC_NOREUSE = 0x02, /* throw this away after tracing */
192 CC_TRACE = 0x04, 156 CC_TRACE = 0x04,
193 CC_TRACE_SUB = 0x08, /* trace sub calls */ 157 CC_TRACE_SUB = 0x08, /* trace sub calls */
194 CC_TRACE_LINE = 0x10, /* trace each statement */ 158 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
199typedef struct coro_cctx 163typedef struct coro_cctx
200{ 164{
201 struct coro_cctx *next; 165 struct coro_cctx *next;
202 166
203 /* the stack */ 167 /* the stack */
204 void *sptr; 168 struct coro_stack stack;
205 size_t ssize;
206 169
207 /* cpu state */ 170 /* cpu state */
208 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 171 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
172#ifndef NDEBUG
209 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 173 JMPENV *idle_te; /* same as idle_sp, but for top_env */
174#endif
210 JMPENV *top_env; 175 JMPENV *top_env;
211 coro_context cctx; 176 coro_context cctx;
212 177
213 U32 gen; 178 U32 gen;
214#if CORO_USE_VALGRIND 179#if CORO_USE_VALGRIND
215 int valgrind_id; 180 int valgrind_id;
216#endif 181#endif
217 unsigned char flags; 182 unsigned char flags;
218} coro_cctx; 183} coro_cctx;
219 184
185static coro_cctx *cctx_current; /* the currently running cctx */
186
187/*****************************************************************************/
188
189static MGVTBL coro_state_vtbl;
190
220enum { 191enum
192{
221 CF_RUNNING = 0x0001, /* coroutine is running */ 193 CF_RUNNING = 0x0001, /* coroutine is running */
222 CF_READY = 0x0002, /* coroutine is ready */ 194 CF_READY = 0x0002, /* coroutine is ready */
223 CF_NEW = 0x0004, /* has never been switched to */ 195 CF_NEW = 0x0004, /* has never been switched to */
224 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 196 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
197 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
198 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
225}; 199};
226 200
227/* the structure where most of the perl state is stored, overlaid on the cxstack */ 201/* the structure where most of the perl state is stored, overlaid on the cxstack */
228typedef struct 202typedef struct
229{ 203{
230 SV *defsv;
231 AV *defav;
232 SV *errsv;
233 SV *irsgv;
234#define VAR(name,type) type name; 204 #define VARx(name,expr,type) type name;
235# include "state.h" 205 #include "state.h"
236#undef VAR
237} perl_slots; 206} perl_slots;
238 207
208/* how many context stack entries do we need for perl_slots */
239#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 209#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
240 210
241/* this is a structure representing a perl-level coroutine */ 211/* this is a structure representing a perl-level coroutine */
242struct coro { 212struct coro
213{
243 /* the C coroutine allocated to this perl coroutine, if any */ 214 /* the C coroutine allocated to this perl coroutine, if any */
244 coro_cctx *cctx; 215 coro_cctx *cctx;
216
217 /* ready queue */
218 struct coro *next_ready;
245 219
246 /* state data */ 220 /* state data */
247 struct CoroSLF slf_frame; /* saved slf frame */ 221 struct CoroSLF slf_frame; /* saved slf frame */
248 AV *mainstack; 222 AV *mainstack;
249 perl_slots *slot; /* basically the saved sp */ 223 perl_slots *slot; /* basically the saved sp */
250 224
225 CV *startcv; /* the CV to execute */
251 AV *args; /* data associated with this coroutine (initial args) */ 226 AV *args; /* data associated with this coroutine (initial args) */
252 int refcnt; /* coroutines are refcounted, yes */
253 int flags; /* CF_ flags */ 227 int flags; /* CF_ flags */
254 HV *hv; /* the perl hash associated with this coro, if any */ 228 HV *hv; /* the perl hash associated with this coro, if any */
255 void (*on_destroy)(pTHX_ struct coro *coro);
256 229
257 /* statistics */ 230 /* statistics */
258 int usecount; /* number of transfers to this coro */ 231 int usecount; /* number of transfers to this coro */
259 232
260 /* coro process data */ 233 /* coro process data */
261 int prio; 234 int prio;
262 SV *except; /* exception to be thrown */ 235 SV *except; /* exception to be thrown */
263 SV *rouse_cb; 236 SV *rouse_cb; /* last rouse callback */
237 AV *on_destroy; /* callbacks or coros to notify on destroy */
238 AV *status; /* the exit status list */
264 239
265 /* async_pool */ 240 /* async_pool */
266 SV *saved_deffh; 241 SV *saved_deffh;
242 SV *invoke_cb;
243 AV *invoke_av;
244
245 /* on_enter/on_leave */
246 AV *on_enter;
247 AV *on_leave;
248
249 /* swap_sv */
250 AV *swap_sv;
251
252 /* times */
253 coro_ts t_cpu, t_real;
267 254
268 /* linked list */ 255 /* linked list */
269 struct coro *next, *prev; 256 struct coro *next, *prev;
270}; 257};
271 258
272typedef struct coro *Coro__State; 259typedef struct coro *Coro__State;
273typedef struct coro *Coro__State_or_hashref; 260typedef struct coro *Coro__State_or_hashref;
274 261
275/* the following variables are effectively part of the perl context */ 262/* the following variables are effectively part of the perl context */
276/* and get copied between struct coro and these variables */ 263/* and get copied between struct coro and these variables */
277/* the mainr easonw e don't support windows process emulation */ 264/* the main reason we don't support windows process emulation */
278static struct CoroSLF slf_frame; /* the current slf frame */ 265static struct CoroSLF slf_frame; /* the current slf frame */
279 266
280/** Coro ********************************************************************/ 267/** Coro ********************************************************************/
281 268
282#define PRIO_MAX 3 269#define CORO_PRIO_MAX 3
283#define PRIO_HIGH 1 270#define CORO_PRIO_HIGH 1
284#define PRIO_NORMAL 0 271#define CORO_PRIO_NORMAL 0
285#define PRIO_LOW -1 272#define CORO_PRIO_LOW -1
286#define PRIO_IDLE -3 273#define CORO_PRIO_IDLE -3
287#define PRIO_MIN -4 274#define CORO_PRIO_MIN -4
288 275
289/* for Coro.pm */ 276/* for Coro.pm */
290static SV *coro_current; 277static SV *coro_current;
291static SV *coro_readyhook; 278static SV *coro_readyhook;
292static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 279static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
280static CV *cv_coro_run;
293static struct coro *coro_first; 281static struct coro *coro_first;
294#define coro_nready coroapi.nready 282#define coro_nready coroapi.nready
295 283
284/** JIT *********************************************************************/
285
286#if CORO_JIT
287 /* APPLE doesn't have mmap though */
288 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
289 #ifndef CORO_JIT_TYPE
290 #if ECB_AMD64 && CORO_JIT_UNIXY
291 #define CORO_JIT_TYPE "amd64-unix"
292 #elif __i386 && CORO_JIT_UNIXY
293 #define CORO_JIT_TYPE "x86-unix"
294 #endif
295 #endif
296#endif
297
298#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
299 #undef CORO_JIT
300#endif
301
302#if CORO_JIT
303 typedef void (*load_save_perl_slots_type)(perl_slots *);
304 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
305#endif
306
307/** Coro::Select ************************************************************/
308
309static OP *(*coro_old_pp_sselect) (pTHX);
310static SV *coro_select_select;
311
312/* horrible hack, but if it works... */
313static OP *
314coro_pp_sselect (pTHX)
315{
316 dSP;
317 PUSHMARK (SP - 4); /* fake argument list */
318 XPUSHs (coro_select_select);
319 PUTBACK;
320
321 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
322 PL_op->op_flags |= OPf_STACKED;
323 PL_op->op_private = 0;
324 return PL_ppaddr [OP_ENTERSUB](aTHX);
325}
326
327/** time stuff **************************************************************/
328
329#ifdef HAS_GETTIMEOFDAY
330
331ecb_inline void
332coro_u2time (pTHX_ UV ret[2])
333{
334 struct timeval tv;
335 gettimeofday (&tv, 0);
336
337 ret [0] = tv.tv_sec;
338 ret [1] = tv.tv_usec;
339}
340
341ecb_inline double
342coro_nvtime (void)
343{
344 struct timeval tv;
345 gettimeofday (&tv, 0);
346
347 return tv.tv_sec + tv.tv_usec * 1e-6;
348}
349
350ecb_inline void
351time_init (pTHX)
352{
353 nvtime = coro_nvtime;
354 u2time = coro_u2time;
355}
356
357#else
358
359ecb_inline void
360time_init (pTHX)
361{
362 SV **svp;
363
364 require_pv ("Time/HiRes.pm");
365
366 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
367
368 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
369 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
370
371 nvtime = INT2PTR (double (*)(), SvIV (*svp));
372
373 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
374 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
375}
376
377#endif
378
296/** lowlevel stuff **********************************************************/ 379/** lowlevel stuff **********************************************************/
297 380
298static SV * 381static SV * ecb_noinline
299coro_get_sv (pTHX_ const char *name, int create) 382coro_get_sv (pTHX_ const char *name, int create)
300{ 383{
301#if PERL_VERSION_ATLEAST (5,10,0) 384#if PERL_VERSION_ATLEAST (5,10,0)
302 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 385 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
303 get_sv (name, create); 386 get_sv (name, create);
304#endif 387#endif
305 return get_sv (name, create); 388 return get_sv (name, create);
306} 389}
307 390
308static AV * 391static AV * ecb_noinline
309coro_get_av (pTHX_ const char *name, int create) 392coro_get_av (pTHX_ const char *name, int create)
310{ 393{
311#if PERL_VERSION_ATLEAST (5,10,0) 394#if PERL_VERSION_ATLEAST (5,10,0)
312 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 395 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
313 get_av (name, create); 396 get_av (name, create);
314#endif 397#endif
315 return get_av (name, create); 398 return get_av (name, create);
316} 399}
317 400
318static HV * 401static HV * ecb_noinline
319coro_get_hv (pTHX_ const char *name, int create) 402coro_get_hv (pTHX_ const char *name, int create)
320{ 403{
321#if PERL_VERSION_ATLEAST (5,10,0) 404#if PERL_VERSION_ATLEAST (5,10,0)
322 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 405 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
323 get_hv (name, create); 406 get_hv (name, create);
324#endif 407#endif
325 return get_hv (name, create); 408 return get_hv (name, create);
326} 409}
327 410
328static AV * 411ecb_inline void
412coro_times_update (void)
413{
414#ifdef coro_clock_gettime
415 struct timespec ts;
416
417 ts.tv_sec = ts.tv_nsec = 0;
418 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
419 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
420
421 ts.tv_sec = ts.tv_nsec = 0;
422 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
423 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
424#else
425 dTHX;
426 UV tv[2];
427
428 u2time (aTHX_ tv);
429 time_real [0] = tv [0];
430 time_real [1] = tv [1] * 1000;
431#endif
432}
433
434ecb_inline void
435coro_times_add (struct coro *c)
436{
437 c->t_real [1] += time_real [1];
438 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
439 c->t_real [0] += time_real [0];
440
441 c->t_cpu [1] += time_cpu [1];
442 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
443 c->t_cpu [0] += time_cpu [0];
444}
445
446ecb_inline void
447coro_times_sub (struct coro *c)
448{
449 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
450 c->t_real [1] -= time_real [1];
451 c->t_real [0] -= time_real [0];
452
453 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
454 c->t_cpu [1] -= time_cpu [1];
455 c->t_cpu [0] -= time_cpu [0];
456}
457
458/*****************************************************************************/
459/* magic glue */
460
461#define CORO_MAGIC_type_cv 26
462#define CORO_MAGIC_type_state PERL_MAGIC_ext
463
464#define CORO_MAGIC_NN(sv, type) \
465 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
466 ? SvMAGIC (sv) \
467 : mg_find (sv, type))
468
469#define CORO_MAGIC(sv, type) \
470 (ecb_expect_true (SvMAGIC (sv)) \
471 ? CORO_MAGIC_NN (sv, type) \
472 : 0)
473
474#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
475#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
476
477ecb_inline MAGIC *
478SvSTATEhv_p (pTHX_ SV *coro)
479{
480 MAGIC *mg;
481
482 if (ecb_expect_true (
483 SvTYPE (coro) == SVt_PVHV
484 && (mg = CORO_MAGIC_state (coro))
485 && mg->mg_virtual == &coro_state_vtbl
486 ))
487 return mg;
488
489 return 0;
490}
491
492ecb_inline struct coro *
493SvSTATE_ (pTHX_ SV *coro)
494{
495 MAGIC *mg;
496
497 if (SvROK (coro))
498 coro = SvRV (coro);
499
500 mg = SvSTATEhv_p (aTHX_ coro);
501 if (!mg)
502 croak ("Coro::State object required");
503
504 return (struct coro *)mg->mg_ptr;
505}
506
507#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
508
509/* faster than SvSTATE, but expects a coroutine hv */
510#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
511#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
512
513/*****************************************************************************/
514/* padlist management and caching */
515
516ecb_inline PADLIST *
329coro_clone_padlist (pTHX_ CV *cv) 517coro_derive_padlist (pTHX_ CV *cv)
330{ 518{
331 AV *padlist = CvPADLIST (cv); 519 PADLIST *padlist = CvPADLIST (cv);
332 AV *newpadlist, *newpad; 520 PADLIST *newpadlist;
521 PAD *newpad;
522 PADOFFSET off = PadlistMAX (padlist) + 1;
333 523
334 newpadlist = newAV (); 524#if NEWPADAPI
525
526 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
527 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
528 while (!PadlistARRAY (padlist)[off - 1])
529 --off;
530
531 Perl_pad_push (aTHX_ padlist, off);
532
533 newpad = PadlistARRAY (padlist)[off];
534 PadlistARRAY (padlist)[off] = 0;
535
536#else
537
538#if PERL_VERSION_ATLEAST (5,10,0)
539 Perl_pad_push (aTHX_ padlist, off);
540#else
541 Perl_pad_push (aTHX_ padlist, off, 1);
542#endif
543
544 newpad = PadlistARRAY (padlist)[off];
545 PadlistMAX (padlist) = off - 1;
546
547#endif
548
549 newPADLIST (newpadlist);
550#if !PERL_VERSION_ATLEAST(5,15,3)
551 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
335 AvREAL_off (newpadlist); 552 AvREAL_off (newpadlist);
336#if PERL_VERSION_ATLEAST (5,10,0)
337 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
338#else
339 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
340#endif 553#endif
341 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
342 --AvFILLp (padlist);
343 554
344 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 555 /* Already extended to 2 elements by newPADLIST. */
345 av_store (newpadlist, 1, (SV *)newpad); 556 PadlistMAX (newpadlist) = 1;
557 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
558 PadlistARRAY (newpadlist)[1] = newpad;
346 559
347 return newpadlist; 560 return newpadlist;
348} 561}
349 562
350static void 563ecb_inline void
351free_padlist (pTHX_ AV *padlist) 564free_padlist (pTHX_ PADLIST *padlist)
352{ 565{
353 /* may be during global destruction */ 566 /* may be during global destruction */
354 if (SvREFCNT (padlist)) 567 if (!IN_DESTRUCT)
355 { 568 {
356 I32 i = AvFILLp (padlist); 569 I32 i = PadlistMAX (padlist);
357 while (i >= 0) 570
571 while (i > 0) /* special-case index 0 */
358 { 572 {
359 SV **svp = av_fetch (padlist, i--, FALSE); 573 /* we try to be extra-careful here */
574 PAD *pad = PadlistARRAY (padlist)[i--];
575
360 if (svp) 576 if (pad)
361 { 577 {
362 SV *sv; 578 I32 j = PadMAX (pad);
363 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 579
580 while (j >= 0)
364 SvREFCNT_dec (sv); 581 SvREFCNT_dec (PadARRAY (pad)[j--]);
365 582
583 PadMAX (pad) = -1;
366 SvREFCNT_dec (*svp); 584 SvREFCNT_dec (pad);
367 } 585 }
368 } 586 }
369 587
588 SvREFCNT_dec (PadlistNAMES (padlist));
589
590#if NEWPADAPI
591 Safefree (PadlistARRAY (padlist));
592 Safefree (padlist);
593#else
594 AvFILLp (padlist) = -1;
595 AvREAL_off (padlist);
370 SvREFCNT_dec ((SV*)padlist); 596 SvREFCNT_dec ((SV*)padlist);
597#endif
371 } 598 }
372} 599}
373 600
374static int 601static int
375coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 602coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
376{ 603{
377 AV *padlist; 604 PADLIST *padlist;
378 AV *av = (AV *)mg->mg_obj; 605 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
606 size_t len = *(size_t *)mg->mg_ptr;
379 607
380 /* casting is fun. */ 608 /* perl manages to free our internal AV and _then_ call us */
381 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 609 if (IN_DESTRUCT)
610 return 0;
611
612 while (len--)
382 free_padlist (aTHX_ padlist); 613 free_padlist (aTHX_ padlists[len]);
383
384 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
385 614
386 return 0; 615 return 0;
387} 616}
388
389#define CORO_MAGIC_type_cv 26
390#define CORO_MAGIC_type_state PERL_MAGIC_ext
391 617
392static MGVTBL coro_cv_vtbl = { 618static MGVTBL coro_cv_vtbl = {
393 0, 0, 0, 0, 619 0, 0, 0, 0,
394 coro_cv_free 620 coro_cv_free
395}; 621};
396 622
397#define CORO_MAGIC_NN(sv, type) \
398 (expect_true (SvMAGIC (sv)->mg_type == type) \
399 ? SvMAGIC (sv) \
400 : mg_find (sv, type))
401
402#define CORO_MAGIC(sv, type) \
403 (expect_true (SvMAGIC (sv)) \
404 ? CORO_MAGIC_NN (sv, type) \
405 : 0)
406
407#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
408#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
409
410INLINE struct coro *
411SvSTATE_ (pTHX_ SV *coro)
412{
413 HV *stash;
414 MAGIC *mg;
415
416 if (SvROK (coro))
417 coro = SvRV (coro);
418
419 if (expect_false (SvTYPE (coro) != SVt_PVHV))
420 croak ("Coro::State object required");
421
422 stash = SvSTASH (coro);
423 if (expect_false (stash != coro_stash && stash != coro_state_stash))
424 {
425 /* very slow, but rare, check */
426 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
427 croak ("Coro::State object required");
428 }
429
430 mg = CORO_MAGIC_state (coro);
431 return (struct coro *)mg->mg_ptr;
432}
433
434#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
435
436/* faster than SvSTATE, but expects a coroutine hv */
437#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
438#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
439
440/* the next two functions merely cache the padlists */ 623/* the next two functions merely cache the padlists */
441static void 624ecb_inline void
442get_padlist (pTHX_ CV *cv) 625get_padlist (pTHX_ CV *cv)
443{ 626{
444 MAGIC *mg = CORO_MAGIC_cv (cv); 627 MAGIC *mg = CORO_MAGIC_cv (cv);
445 AV *av; 628 size_t *lenp;
446 629
447 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 630 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
448 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 631 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
449 else 632 else
450 { 633 {
451#if CORO_PREFER_PERL_FUNCTIONS 634#if CORO_PREFER_PERL_FUNCTIONS
452 /* this is probably cleaner? but also slower! */ 635 /* this is probably cleaner? but also slower! */
453 /* in practise, it seems to be less stable */ 636 /* in practise, it seems to be less stable */
454 CV *cp = Perl_cv_clone (cv); 637 CV *cp = Perl_cv_clone (aTHX_ cv);
455 CvPADLIST (cv) = CvPADLIST (cp); 638 CvPADLIST (cv) = CvPADLIST (cp);
456 CvPADLIST (cp) = 0; 639 CvPADLIST (cp) = 0;
457 SvREFCNT_dec (cp); 640 SvREFCNT_dec (cp);
458#else 641#else
459 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 642 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
460#endif 643#endif
461 } 644 }
462} 645}
463 646
464static void 647ecb_inline void
465put_padlist (pTHX_ CV *cv) 648put_padlist (pTHX_ CV *cv)
466{ 649{
467 MAGIC *mg = CORO_MAGIC_cv (cv); 650 MAGIC *mg = CORO_MAGIC_cv (cv);
468 AV *av;
469 651
470 if (expect_false (!mg)) 652 if (ecb_expect_false (!mg))
653 {
471 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 654 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
655 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
656 mg->mg_len = 1; /* so mg_free frees mg_ptr */
657 }
658 else
659 Renew (mg->mg_ptr,
660 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
661 char);
472 662
473 av = (AV *)mg->mg_obj; 663 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
474
475 if (expect_false (AvFILLp (av) >= AvMAX (av)))
476 av_extend (av, AvMAX (av) + 1);
477
478 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
479} 664}
480 665
481/** load & save, init *******************************************************/ 666/** load & save, init *******************************************************/
667
668ecb_inline void
669swap_sv (SV *a, SV *b)
670{
671 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
672 SV tmp;
673
674 /* swap sv_any */
675 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
676
677 /* swap sv_flags */
678 SvFLAGS (&tmp) = SvFLAGS (a);
679 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
680 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
681
682#if PERL_VERSION_ATLEAST (5,10,0)
683 /* perl 5.10 and later complicates this _quite_ a bit, but it also
684 * is much faster, so no quarrels here. alternatively, we could
685 * sv_upgrade to avoid this.
686 */
687 {
688 /* swap sv_u */
689 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
690
691 /* if SvANY points to the head, we need to adjust the pointers,
692 * as the pointer for a still points to b, and maybe vice versa.
693 */
694 #define svany_in_head(type) \
695 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
696
697 if (svany_in_head (SvTYPE (a)))
698 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
699
700 if (svany_in_head (SvTYPE (b)))
701 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
702 }
703#endif
704}
705
706/* swap sv heads, at least logically */
707static void
708swap_svs (pTHX_ Coro__State c)
709{
710 int i;
711
712 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
713 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
714}
715
716#define SWAP_SVS(coro) \
717 if (ecb_expect_false ((coro)->swap_sv)) \
718 swap_svs (aTHX_ (coro))
719
720static void
721on_enterleave_call (pTHX_ SV *cb);
482 722
483static void 723static void
484load_perl (pTHX_ Coro__State c) 724load_perl (pTHX_ Coro__State c)
485{ 725{
486 perl_slots *slot = c->slot; 726 perl_slots *slot = c->slot;
487 c->slot = 0; 727 c->slot = 0;
488 728
489 PL_mainstack = c->mainstack; 729 PL_mainstack = c->mainstack;
490 730
491 GvSV (PL_defgv) = slot->defsv; 731#if CORO_JIT
492 GvAV (PL_defgv) = slot->defav; 732 load_perl_slots (slot);
493 GvSV (PL_errgv) = slot->errsv; 733#else
494 GvSV (irsgv) = slot->irsgv;
495
496 #define VAR(name,type) PL_ ## name = slot->name; 734 #define VARx(name,expr,type) expr = slot->name;
497 # include "state.h" 735 #include "state.h"
498 #undef VAR 736#endif
499 737
500 { 738 {
501 dSP; 739 dSP;
502 740
503 CV *cv; 741 CV *cv;
504 742
505 /* now do the ugly restore mess */ 743 /* now do the ugly restore mess */
506 while (expect_true (cv = (CV *)POPs)) 744 while (ecb_expect_true (cv = (CV *)POPs))
507 { 745 {
508 put_padlist (aTHX_ cv); /* mark this padlist as available */ 746 put_padlist (aTHX_ cv); /* mark this padlist as available */
509 CvDEPTH (cv) = PTR2IV (POPs); 747 CvDEPTH (cv) = PTR2IV (POPs);
510 CvPADLIST (cv) = (AV *)POPs; 748 CvPADLIST (cv) = (PADLIST *)POPs;
511 } 749 }
512 750
513 PUTBACK; 751 PUTBACK;
514 } 752 }
515 753
516 slf_frame = c->slf_frame; 754 slf_frame = c->slf_frame;
517 CORO_THROW = c->except; 755 CORO_THROW = c->except;
756
757 if (ecb_expect_false (enable_times))
758 {
759 if (ecb_expect_false (!times_valid))
760 coro_times_update ();
761
762 coro_times_sub (c);
763 }
764
765 if (ecb_expect_false (c->on_enter))
766 {
767 int i;
768
769 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
770 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
771 }
772
773 SWAP_SVS (c);
518} 774}
519 775
520static void 776static void
521save_perl (pTHX_ Coro__State c) 777save_perl (pTHX_ Coro__State c)
522{ 778{
779 SWAP_SVS (c);
780
781 if (ecb_expect_false (c->on_leave))
782 {
783 int i;
784
785 for (i = AvFILLp (c->on_leave); i >= 0; --i)
786 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
787 }
788
789 times_valid = 0;
790
791 if (ecb_expect_false (enable_times))
792 {
793 coro_times_update (); times_valid = 1;
794 coro_times_add (c);
795 }
796
523 c->except = CORO_THROW; 797 c->except = CORO_THROW;
524 c->slf_frame = slf_frame; 798 c->slf_frame = slf_frame;
525 799
526 { 800 {
527 dSP; 801 dSP;
… …
536 810
537 XPUSHs (Nullsv); 811 XPUSHs (Nullsv);
538 /* this loop was inspired by pp_caller */ 812 /* this loop was inspired by pp_caller */
539 for (;;) 813 for (;;)
540 { 814 {
541 while (expect_true (cxix >= 0)) 815 while (ecb_expect_true (cxix >= 0))
542 { 816 {
543 PERL_CONTEXT *cx = &ccstk[cxix--]; 817 PERL_CONTEXT *cx = &ccstk[cxix--];
544 818
545 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 819 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
546 { 820 {
547 CV *cv = cx->blk_sub.cv; 821 CV *cv = cx->blk_sub.cv;
548 822
549 if (expect_true (CvDEPTH (cv))) 823 if (ecb_expect_true (CvDEPTH (cv)))
550 { 824 {
551 EXTEND (SP, 3); 825 EXTEND (SP, 3);
552 PUSHs ((SV *)CvPADLIST (cv)); 826 PUSHs ((SV *)CvPADLIST (cv));
553 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 827 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
554 PUSHs ((SV *)cv); 828 PUSHs ((SV *)cv);
… …
557 get_padlist (aTHX_ cv); 831 get_padlist (aTHX_ cv);
558 } 832 }
559 } 833 }
560 } 834 }
561 835
562 if (expect_true (top_si->si_type == PERLSI_MAIN)) 836 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
563 break; 837 break;
564 838
565 top_si = top_si->si_prev; 839 top_si = top_si->si_prev;
566 ccstk = top_si->si_cxstack; 840 ccstk = top_si->si_cxstack;
567 cxix = top_si->si_cxix; 841 cxix = top_si->si_cxix;
… …
569 843
570 PUTBACK; 844 PUTBACK;
571 } 845 }
572 846
573 /* allocate some space on the context stack for our purposes */ 847 /* allocate some space on the context stack for our purposes */
574 /* we manually unroll here, as usually 2 slots is enough */ 848 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
575 if (SLOT_COUNT >= 1) CXINC;
576 if (SLOT_COUNT >= 2) CXINC;
577 if (SLOT_COUNT >= 3) CXINC;
578 { 849 {
579 int i; 850 unsigned int i;
851
580 for (i = 3; i < SLOT_COUNT; ++i) 852 for (i = 0; i < SLOT_COUNT; ++i)
581 CXINC; 853 CXINC;
582 } 854
583 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 855 cxstack_ix -= SLOT_COUNT; /* undo allocation */
856 }
584 857
585 c->mainstack = PL_mainstack; 858 c->mainstack = PL_mainstack;
586 859
587 { 860 {
588 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 861 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
589 862
590 slot->defav = GvAV (PL_defgv); 863#if CORO_JIT
591 slot->defsv = DEFSV; 864 save_perl_slots (slot);
592 slot->errsv = ERRSV; 865#else
593 slot->irsgv = GvSV (irsgv);
594
595 #define VAR(name,type) slot->name = PL_ ## name; 866 #define VARx(name,expr,type) slot->name = expr;
596 # include "state.h" 867 #include "state.h"
597 #undef VAR 868#endif
598 } 869 }
599} 870}
600 871
601/* 872/*
602 * allocate various perl stacks. This is almost an exact copy 873 * allocate various perl stacks. This is almost an exact copy
603 * of perl.c:init_stacks, except that it uses less memory 874 * of perl.c:init_stacks, except that it uses less memory
604 * on the (sometimes correct) assumption that coroutines do 875 * on the (sometimes correct) assumption that coroutines do
605 * not usually need a lot of stackspace. 876 * not usually need a lot of stackspace.
606 */ 877 */
607#if CORO_PREFER_PERL_FUNCTIONS 878#if CORO_PREFER_PERL_FUNCTIONS
608# define coro_init_stacks init_stacks 879# define coro_init_stacks(thx) init_stacks ()
609#else 880#else
610static void 881static void
611coro_init_stacks (pTHX) 882coro_init_stacks (pTHX)
612{ 883{
613 PL_curstackinfo = new_stackinfo(32, 8); 884 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
614 PL_curstackinfo->si_type = PERLSI_MAIN; 885 PL_curstackinfo->si_type = PERLSI_MAIN;
615 PL_curstack = PL_curstackinfo->si_stack; 886 PL_curstack = PL_curstackinfo->si_stack;
616 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 887 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
617 888
618 PL_stack_base = AvARRAY(PL_curstack); 889 PL_stack_base = AvARRAY(PL_curstack);
… …
633#endif 904#endif
634 905
635 New(54,PL_scopestack,8,I32); 906 New(54,PL_scopestack,8,I32);
636 PL_scopestack_ix = 0; 907 PL_scopestack_ix = 0;
637 PL_scopestack_max = 8; 908 PL_scopestack_max = 8;
909#if HAS_SCOPESTACK_NAME
910 New(54,PL_scopestack_name,8,const char*);
911#endif
638 912
639 New(54,PL_savestack,24,ANY); 913 New(54,PL_savestack,24,ANY);
640 PL_savestack_ix = 0; 914 PL_savestack_ix = 0;
641 PL_savestack_max = 24; 915 PL_savestack_max = 24;
642 916
… …
670 } 944 }
671 945
672 Safefree (PL_tmps_stack); 946 Safefree (PL_tmps_stack);
673 Safefree (PL_markstack); 947 Safefree (PL_markstack);
674 Safefree (PL_scopestack); 948 Safefree (PL_scopestack);
949#if HAS_SCOPESTACK_NAME
950 Safefree (PL_scopestack_name);
951#endif
675 Safefree (PL_savestack); 952 Safefree (PL_savestack);
676#if !PERL_VERSION_ATLEAST (5,10,0) 953#if !PERL_VERSION_ATLEAST (5,10,0)
677 Safefree (PL_retstack); 954 Safefree (PL_retstack);
678#endif 955#endif
679} 956}
680 957
958#define CORO_RSS \
959 rss += sizeof (SYM (curstackinfo)); \
960 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
961 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
962 rss += SYM (tmps_max) * sizeof (SV *); \
963 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
964 rss += SYM (scopestack_max) * sizeof (I32); \
965 rss += SYM (savestack_max) * sizeof (ANY);
966
681static size_t 967static size_t
682coro_rss (pTHX_ struct coro *coro) 968coro_rss (pTHX_ struct coro *coro)
683{ 969{
684 size_t rss = sizeof (*coro); 970 size_t rss = sizeof (*coro);
685 971
686 if (coro->mainstack) 972 if (coro->mainstack)
687 { 973 {
688 perl_slots tmp_slot;
689 perl_slots *slot;
690
691 if (coro->flags & CF_RUNNING) 974 if (coro->flags & CF_RUNNING)
692 { 975 {
693 slot = &tmp_slot; 976 #define SYM(sym) PL_ ## sym
694 977 CORO_RSS;
695 #define VAR(name,type) slot->name = PL_ ## name;
696 # include "state.h"
697 #undef VAR 978 #undef SYM
698 } 979 }
699 else 980 else
700 slot = coro->slot;
701
702 if (slot)
703 { 981 {
704 rss += sizeof (slot->curstackinfo); 982 #define SYM(sym) coro->slot->sym
705 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 983 CORO_RSS;
706 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 984 #undef SYM
707 rss += slot->tmps_max * sizeof (SV *);
708 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
709 rss += slot->scopestack_max * sizeof (I32);
710 rss += slot->savestack_max * sizeof (ANY);
711
712#if !PERL_VERSION_ATLEAST (5,10,0)
713 rss += slot->retstack_max * sizeof (OP *);
714#endif
715 } 985 }
716 } 986 }
717 987
718 return rss; 988 return rss;
719} 989}
… …
732#endif 1002#endif
733 1003
734/* 1004/*
735 * This overrides the default magic get method of %SIG elements. 1005 * This overrides the default magic get method of %SIG elements.
736 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1006 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
737 * and instead of tryign to save and restore the hash elements, we just provide 1007 * and instead of trying to save and restore the hash elements (extremely slow),
738 * readback here. 1008 * we just provide our own readback here.
739 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
740 * not expecting this to actually change the hook. This is a potential problem
741 * when a schedule happens then, but we ignore this.
742 */ 1009 */
743static int 1010static int ecb_cold
744coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1011coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
745{ 1012{
746 const char *s = MgPV_nolen_const (mg); 1013 const char *s = MgPV_nolen_const (mg);
747 1014
748 if (*s == '_') 1015 if (*s == '_')
749 { 1016 {
750 SV **svp = 0; 1017 SV **svp = 0;
751 1018
752 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1019 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
753 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1020 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
754 1021
755 if (svp) 1022 if (svp)
756 { 1023 {
757 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1024 SV *ssv;
1025
1026 if (!*svp)
1027 ssv = &PL_sv_undef;
1028 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1029 ssv = sv_2mortal (newRV_inc (*svp));
1030 else
1031 ssv = *svp;
1032
1033 sv_setsv (sv, ssv);
758 return 0; 1034 return 0;
759 } 1035 }
760 } 1036 }
761 1037
762 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1038 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
763} 1039}
764 1040
765static int 1041static int ecb_cold
766coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1042coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
767{ 1043{
768 const char *s = MgPV_nolen_const (mg); 1044 const char *s = MgPV_nolen_const (mg);
769 1045
770 if (*s == '_') 1046 if (*s == '_')
… …
784 } 1060 }
785 1061
786 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1062 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
787} 1063}
788 1064
789static int 1065static int ecb_cold
790coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1066coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
791{ 1067{
792 const char *s = MgPV_nolen_const (mg); 1068 const char *s = MgPV_nolen_const (mg);
793 1069
794 if (*s == '_') 1070 if (*s == '_')
… …
799 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1075 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
800 1076
801 if (svp) 1077 if (svp)
802 { 1078 {
803 SV *old = *svp; 1079 SV *old = *svp;
804 *svp = newSVsv (sv); 1080 *svp = SvOK (sv) ? newSVsv (sv) : 0;
805 SvREFCNT_dec (old); 1081 SvREFCNT_dec (old);
806 return 0; 1082 return 0;
807 } 1083 }
808 } 1084 }
809 1085
… …
821slf_check_nop (pTHX_ struct CoroSLF *frame) 1097slf_check_nop (pTHX_ struct CoroSLF *frame)
822{ 1098{
823 return 0; 1099 return 0;
824} 1100}
825 1101
826static UNOP coro_setup_op; 1102static int
1103slf_check_repeat (pTHX_ struct CoroSLF *frame)
1104{
1105 return 1;
1106}
827 1107
828static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1108static UNOP init_perl_op;
1109
1110ecb_noinline static void /* noinline to keep it out of the transfer fast path */
829coro_setup (pTHX_ struct coro *coro) 1111init_perl (pTHX_ struct coro *coro)
830{ 1112{
831 /* 1113 /*
832 * emulate part of the perl startup here. 1114 * emulate part of the perl startup here.
833 */ 1115 */
834 coro_init_stacks (aTHX); 1116 coro_init_stacks (aTHX);
835 1117
836 PL_runops = RUNOPS_DEFAULT; 1118 PL_runops = RUNOPS_DEFAULT;
837 PL_curcop = &PL_compiling; 1119 PL_curcop = &PL_compiling;
838 PL_in_eval = EVAL_NULL; 1120 PL_in_eval = EVAL_NULL;
839 PL_comppad = 0; 1121 PL_comppad = 0;
1122 PL_comppad_name = 0;
1123 PL_comppad_name_fill = 0;
1124 PL_comppad_name_floor = 0;
840 PL_curpm = 0; 1125 PL_curpm = 0;
841 PL_curpad = 0; 1126 PL_curpad = 0;
842 PL_localizing = 0; 1127 PL_localizing = 0;
843 PL_dirty = 0;
844 PL_restartop = 0; 1128 PL_restartop = 0;
845#if PERL_VERSION_ATLEAST (5,10,0) 1129#if PERL_VERSION_ATLEAST (5,10,0)
846 PL_parser = 0; 1130 PL_parser = 0;
847#endif 1131#endif
1132 PL_hints = 0;
848 1133
849 /* recreate the die/warn hooks */ 1134 /* recreate the die/warn hooks */
850 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1135 PL_diehook = SvREFCNT_inc (rv_diehook);
851 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1136 PL_warnhook = SvREFCNT_inc (rv_warnhook);
852 1137
853 GvSV (PL_defgv) = newSV (0); 1138 GvSV (PL_defgv) = newSV (0);
854 GvAV (PL_defgv) = coro->args; coro->args = 0; 1139 GvAV (PL_defgv) = coro->args; coro->args = 0;
855 GvSV (PL_errgv) = newSV (0); 1140 GvSV (PL_errgv) = newSV (0);
856 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1141 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1142 GvHV (PL_hintgv) = 0;
857 PL_rs = newSVsv (GvSV (irsgv)); 1143 PL_rs = newSVsv (GvSV (irsgv));
858 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1144 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
859 1145
860 { 1146 {
861 dSP; 1147 dSP;
862 UNOP myop; 1148 UNOP myop;
863 1149
864 Zero (&myop, 1, UNOP); 1150 Zero (&myop, 1, UNOP);
865 myop.op_next = Nullop; 1151 myop.op_next = Nullop;
1152 myop.op_type = OP_ENTERSUB;
866 myop.op_flags = OPf_WANT_VOID; 1153 myop.op_flags = OPf_WANT_VOID;
867 1154
868 PUSHMARK (SP); 1155 PUSHMARK (SP);
869 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 1156 PUSHs ((SV *)coro->startcv);
870 PUTBACK; 1157 PUTBACK;
871 PL_op = (OP *)&myop; 1158 PL_op = (OP *)&myop;
872 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1159 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
873 SPAGAIN;
874 } 1160 }
875 1161
876 /* this newly created coroutine might be run on an existing cctx which most 1162 /* this newly created coroutine might be run on an existing cctx which most
877 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1163 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
878 */ 1164 */
879 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1165 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
880 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1166 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1167 slf_frame.destroy = 0;
881 1168
882 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1169 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
883 coro_setup_op.op_next = PL_op; 1170 init_perl_op.op_next = PL_op;
884 coro_setup_op.op_type = OP_CUSTOM; 1171 init_perl_op.op_type = OP_ENTERSUB;
885 coro_setup_op.op_ppaddr = pp_slf; 1172 init_perl_op.op_ppaddr = pp_slf;
886 /* no flags required, as an init function won't be called */ 1173 /* no flags etc. required, as an init function won't be called */
887 1174
888 PL_op = (OP *)&coro_setup_op; 1175 PL_op = (OP *)&init_perl_op;
889 1176
890 /* copy throw, in case it was set before coro_setup */ 1177 /* copy throw, in case it was set before init_perl */
891 CORO_THROW = coro->except; 1178 CORO_THROW = coro->except;
892}
893 1179
1180 SWAP_SVS (coro);
1181
1182 if (ecb_expect_false (enable_times))
1183 {
1184 coro_times_update ();
1185 coro_times_sub (coro);
1186 }
1187}
1188
894static void 1189static void
895coro_destruct (pTHX_ struct coro *coro) 1190coro_unwind_stacks (pTHX)
896{ 1191{
897 if (!IN_DESTRUCT) 1192 if (!IN_DESTRUCT)
898 { 1193 {
899 /* restore all saved variables and stuff */ 1194 /* restore all saved variables and stuff */
900 LEAVE_SCOPE (0); 1195 LEAVE_SCOPE (0);
… …
908 POPSTACK_TO (PL_mainstack); 1203 POPSTACK_TO (PL_mainstack);
909 1204
910 /* unwind main stack */ 1205 /* unwind main stack */
911 dounwind (-1); 1206 dounwind (-1);
912 } 1207 }
1208}
913 1209
914 SvREFCNT_dec (GvSV (PL_defgv)); 1210static void
915 SvREFCNT_dec (GvAV (PL_defgv)); 1211destroy_perl (pTHX_ struct coro *coro)
916 SvREFCNT_dec (GvSV (PL_errgv)); 1212{
917 SvREFCNT_dec (PL_defoutgv); 1213 SV *svf [9];
918 SvREFCNT_dec (PL_rs);
919 SvREFCNT_dec (GvSV (irsgv));
920 1214
921 SvREFCNT_dec (PL_diehook);
922 SvREFCNT_dec (PL_warnhook);
923 1215 {
924 SvREFCNT_dec (CORO_THROW); 1216 SV *old_current = SvRV (coro_current);
1217 struct coro *current = SvSTATE (old_current);
1218
1219 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1220
1221 save_perl (aTHX_ current);
1222
1223 /* this will cause transfer_check to croak on block*/
1224 SvRV_set (coro_current, (SV *)coro->hv);
1225
1226 load_perl (aTHX_ coro);
1227
1228 coro_unwind_stacks (aTHX);
1229
1230 /* restore swapped sv's */
1231 SWAP_SVS (coro);
1232
1233 coro_destruct_stacks (aTHX);
1234
1235 /* now save some sv's to be free'd later */
1236 svf [0] = GvSV (PL_defgv);
1237 svf [1] = (SV *)GvAV (PL_defgv);
1238 svf [2] = GvSV (PL_errgv);
1239 svf [3] = (SV *)PL_defoutgv;
1240 svf [4] = PL_rs;
1241 svf [5] = GvSV (irsgv);
1242 svf [6] = (SV *)GvHV (PL_hintgv);
1243 svf [7] = PL_diehook;
1244 svf [8] = PL_warnhook;
1245 assert (9 == sizeof (svf) / sizeof (*svf));
1246
1247 SvRV_set (coro_current, old_current);
1248
1249 load_perl (aTHX_ current);
1250 }
1251
1252 {
1253 unsigned int i;
1254
1255 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1256 SvREFCNT_dec (svf [i]);
1257
925 SvREFCNT_dec (coro->saved_deffh); 1258 SvREFCNT_dec (coro->saved_deffh);
926 SvREFCNT_dec (coro->rouse_cb); 1259 SvREFCNT_dec (coro->rouse_cb);
927 1260 SvREFCNT_dec (coro->invoke_cb);
928 coro_destruct_stacks (aTHX); 1261 SvREFCNT_dec (coro->invoke_av);
1262 }
929} 1263}
930 1264
931INLINE void 1265ecb_inline void
932free_coro_mortal (pTHX) 1266free_coro_mortal (pTHX)
933{ 1267{
934 if (expect_true (coro_mortal)) 1268 if (ecb_expect_true (coro_mortal))
935 { 1269 {
936 SvREFCNT_dec (coro_mortal); 1270 SvREFCNT_dec ((SV *)coro_mortal);
937 coro_mortal = 0; 1271 coro_mortal = 0;
938 } 1272 }
939} 1273}
940 1274
941static int 1275static int
942runops_trace (pTHX) 1276runops_trace (pTHX)
943{ 1277{
944 COP *oldcop = 0; 1278 COP *oldcop = 0;
945 int oldcxix = -2; 1279 int oldcxix = -2;
946 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
947 coro_cctx *cctx = coro->cctx;
948 1280
949 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1281 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
950 { 1282 {
951 PERL_ASYNC_CHECK (); 1283 PERL_ASYNC_CHECK ();
952 1284
953 if (cctx->flags & CC_TRACE_ALL) 1285 if (cctx_current->flags & CC_TRACE_ALL)
954 { 1286 {
955 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1287 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
956 { 1288 {
957 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1289 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
958 SV **bot, **top; 1290 SV **bot, **top;
959 AV *av = newAV (); /* return values */ 1291 AV *av = newAV (); /* return values */
960 SV **cb; 1292 SV **cb;
… …
997 1329
998 if (PL_curcop != &PL_compiling) 1330 if (PL_curcop != &PL_compiling)
999 { 1331 {
1000 SV **cb; 1332 SV **cb;
1001 1333
1002 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1334 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1003 { 1335 {
1004 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1336 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1005 1337
1006 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1338 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1007 { 1339 {
1008 runops_proc_t old_runops = PL_runops;
1009 dSP; 1340 dSP;
1010 GV *gv = CvGV (cx->blk_sub.cv); 1341 GV *gv = CvGV (cx->blk_sub.cv);
1011 SV *fullname = sv_2mortal (newSV (0)); 1342 SV *fullname = sv_2mortal (newSV (0));
1012 1343
1013 if (isGV (gv)) 1344 if (isGV (gv))
… …
1018 SAVETMPS; 1349 SAVETMPS;
1019 EXTEND (SP, 3); 1350 EXTEND (SP, 3);
1020 PUSHMARK (SP); 1351 PUSHMARK (SP);
1021 PUSHs (&PL_sv_yes); 1352 PUSHs (&PL_sv_yes);
1022 PUSHs (fullname); 1353 PUSHs (fullname);
1023 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1354 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1024 PUTBACK; 1355 PUTBACK;
1025 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1356 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1026 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1357 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1027 SPAGAIN; 1358 SPAGAIN;
1028 FREETMPS; 1359 FREETMPS;
… …
1031 } 1362 }
1032 1363
1033 oldcxix = cxstack_ix; 1364 oldcxix = cxstack_ix;
1034 } 1365 }
1035 1366
1036 if (cctx->flags & CC_TRACE_LINE) 1367 if (cctx_current->flags & CC_TRACE_LINE)
1037 { 1368 {
1038 dSP; 1369 dSP;
1039 1370
1040 PL_runops = RUNOPS_DEFAULT; 1371 PL_runops = RUNOPS_DEFAULT;
1041 ENTER; 1372 ENTER;
… …
1060 1391
1061 TAINT_NOT; 1392 TAINT_NOT;
1062 return 0; 1393 return 0;
1063} 1394}
1064 1395
1065static struct coro_cctx *cctx_ssl_cctx;
1066static struct CoroSLF cctx_ssl_frame; 1396static struct CoroSLF cctx_ssl_frame;
1067 1397
1068static void 1398static void
1069slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1399slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1070{ 1400{
1071 ta->prev = (struct coro *)cctx_ssl_cctx;
1072 ta->next = 0; 1401 ta->prev = 0;
1073} 1402}
1074 1403
1075static int 1404static int
1076slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1405slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1077{ 1406{
… …
1079 1408
1080 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1409 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1081} 1410}
1082 1411
1083/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1412/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1084static void NOINLINE 1413static void ecb_noinline
1085cctx_prepare (pTHX_ coro_cctx *cctx) 1414cctx_prepare (pTHX)
1086{ 1415{
1087 PL_top_env = &PL_start_env; 1416 PL_top_env = &PL_start_env;
1088 1417
1089 if (cctx->flags & CC_TRACE) 1418 if (cctx_current->flags & CC_TRACE)
1090 PL_runops = runops_trace; 1419 PL_runops = runops_trace;
1091 1420
1092 /* we already must be executing an SLF op, there is no other valid way 1421 /* we already must be executing an SLF op, there is no other valid way
1093 * that can lead to creation of a new cctx */ 1422 * that can lead to creation of a new cctx */
1094 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1423 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1095 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1424 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1096 1425
1097 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1426 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1098 cctx_ssl_cctx = cctx;
1099 cctx_ssl_frame = slf_frame; 1427 cctx_ssl_frame = slf_frame;
1100 1428
1101 slf_frame.prepare = slf_prepare_set_stacklevel; 1429 slf_frame.prepare = slf_prepare_set_stacklevel;
1102 slf_frame.check = slf_check_set_stacklevel; 1430 slf_frame.check = slf_check_set_stacklevel;
1103} 1431}
1104 1432
1105/* the tail of transfer: execute stuff we can only do after a transfer */ 1433/* the tail of transfer: execute stuff we can only do after a transfer */
1106INLINE void 1434ecb_inline void
1107transfer_tail (pTHX) 1435transfer_tail (pTHX)
1108{ 1436{
1109 free_coro_mortal (aTHX); 1437 free_coro_mortal (aTHX);
1438}
1439
1440/* try to exit the same way perl's main function would do */
1441/* we do not bother resetting the environment or other things *7
1442/* that are not, uhm, essential */
1443/* this obviously also doesn't work when perl is embedded */
1444static void ecb_noinline ecb_cold
1445perlish_exit (pTHX)
1446{
1447 int exitstatus = perl_destruct (PL_curinterp);
1448 perl_free (PL_curinterp);
1449 exit (exitstatus);
1110} 1450}
1111 1451
1112/* 1452/*
1113 * this is a _very_ stripped down perl interpreter ;) 1453 * this is a _very_ stripped down perl interpreter ;)
1114 */ 1454 */
… …
1126 /* normally we would need to skip the entersub here */ 1466 /* normally we would need to skip the entersub here */
1127 /* not doing so will re-execute it, which is exactly what we want */ 1467 /* not doing so will re-execute it, which is exactly what we want */
1128 /* PL_nop = PL_nop->op_next */ 1468 /* PL_nop = PL_nop->op_next */
1129 1469
1130 /* inject a fake subroutine call to cctx_init */ 1470 /* inject a fake subroutine call to cctx_init */
1131 cctx_prepare (aTHX_ (coro_cctx *)arg); 1471 cctx_prepare (aTHX);
1132 1472
1133 /* cctx_run is the alternative tail of transfer() */ 1473 /* cctx_run is the alternative tail of transfer() */
1134 transfer_tail (aTHX); 1474 transfer_tail (aTHX);
1135 1475
1136 /* somebody or something will hit me for both perl_run and PL_restartop */ 1476 /* somebody or something will hit me for both perl_run and PL_restartop */
1137 PL_restartop = PL_op; 1477 PL_restartop = PL_op;
1138 perl_run (PL_curinterp); 1478 perl_run (PL_curinterp);
1479 /*
1480 * Unfortunately, there is no way to get at the return values of the
1481 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1482 * runtime errors here, as this is just a random interpreter, not a thread.
1483 */
1139 1484
1140 /* 1485 /*
1141 * If perl-run returns we assume exit() was being called or the coro 1486 * If perl-run returns we assume exit() was being called or the coro
1142 * fell off the end, which seems to be the only valid (non-bug) 1487 * fell off the end, which seems to be the only valid (non-bug)
1143 * reason for perl_run to return. We try to exit by jumping to the 1488 * reason for perl_run to return. We try to mimic whatever perl is normally
1144 * bootstrap-time "top" top_env, as we cannot restore the "main" 1489 * doing in that case. YMMV.
1145 * coroutine as Coro has no such concept
1146 */ 1490 */
1147 PL_top_env = main_top_env; 1491 perlish_exit (aTHX);
1148 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1149 } 1492 }
1150} 1493}
1151 1494
1152static coro_cctx * 1495static coro_cctx *
1153cctx_new () 1496cctx_new (void)
1154{ 1497{
1155 coro_cctx *cctx; 1498 coro_cctx *cctx;
1156 1499
1157 ++cctx_count; 1500 ++cctx_count;
1158 New (0, cctx, 1, coro_cctx); 1501 New (0, cctx, 1, coro_cctx);
… …
1164 return cctx; 1507 return cctx;
1165} 1508}
1166 1509
1167/* create a new cctx only suitable as source */ 1510/* create a new cctx only suitable as source */
1168static coro_cctx * 1511static coro_cctx *
1169cctx_new_empty () 1512cctx_new_empty (void)
1170{ 1513{
1171 coro_cctx *cctx = cctx_new (); 1514 coro_cctx *cctx = cctx_new ();
1172 1515
1173 cctx->sptr = 0; 1516 cctx->stack.sptr = 0;
1174 coro_create (&cctx->cctx, 0, 0, 0, 0); 1517 coro_create (&cctx->cctx, 0, 0, 0, 0);
1175 1518
1176 return cctx; 1519 return cctx;
1177} 1520}
1178 1521
1179/* create a new cctx suitable as destination/running a perl interpreter */ 1522/* create a new cctx suitable as destination/running a perl interpreter */
1180static coro_cctx * 1523static coro_cctx *
1181cctx_new_run () 1524cctx_new_run (void)
1182{ 1525{
1183 coro_cctx *cctx = cctx_new (); 1526 coro_cctx *cctx = cctx_new ();
1184 void *stack_start;
1185 size_t stack_size;
1186 1527
1187#if HAVE_MMAP 1528 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1188 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1189 /* mmap supposedly does allocate-on-write for us */
1190 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1191
1192 if (cctx->sptr != (void *)-1)
1193 {
1194 #if CORO_STACKGUARD
1195 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1196 #endif
1197 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1198 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1199 cctx->flags |= CC_MAPPED;
1200 } 1529 {
1201 else
1202#endif
1203 {
1204 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1205 New (0, cctx->sptr, cctx_stacksize, long);
1206
1207 if (!cctx->sptr)
1208 {
1209 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1530 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1210 _exit (EXIT_FAILURE); 1531 _exit (EXIT_FAILURE);
1211 }
1212
1213 stack_start = cctx->sptr;
1214 stack_size = cctx->ssize;
1215 } 1532 }
1216 1533
1217 #if CORO_USE_VALGRIND
1218 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1219 #endif
1220
1221 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1534 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1222 1535
1223 return cctx; 1536 return cctx;
1224} 1537}
1225 1538
1226static void 1539static void
1227cctx_destroy (coro_cctx *cctx) 1540cctx_destroy (coro_cctx *cctx)
1228{ 1541{
1229 if (!cctx) 1542 if (!cctx)
1230 return; 1543 return;
1231 1544
1545 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1546
1232 --cctx_count; 1547 --cctx_count;
1233 coro_destroy (&cctx->cctx); 1548 coro_destroy (&cctx->cctx);
1234 1549
1235 /* coro_transfer creates new, empty cctx's */ 1550 coro_stack_free (&cctx->stack);
1236 if (cctx->sptr)
1237 {
1238 #if CORO_USE_VALGRIND
1239 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1240 #endif
1241
1242#if HAVE_MMAP
1243 if (cctx->flags & CC_MAPPED)
1244 munmap (cctx->sptr, cctx->ssize);
1245 else
1246#endif
1247 Safefree (cctx->sptr);
1248 }
1249 1551
1250 Safefree (cctx); 1552 Safefree (cctx);
1251} 1553}
1252 1554
1253/* wether this cctx should be destructed */ 1555/* wether this cctx should be destructed */
1254#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1556#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1255 1557
1256static coro_cctx * 1558static coro_cctx *
1257cctx_get (pTHX) 1559cctx_get (pTHX)
1258{ 1560{
1259 while (expect_true (cctx_first)) 1561 while (ecb_expect_true (cctx_first))
1260 { 1562 {
1261 coro_cctx *cctx = cctx_first; 1563 coro_cctx *cctx = cctx_first;
1262 cctx_first = cctx->next; 1564 cctx_first = cctx->next;
1263 --cctx_idle; 1565 --cctx_idle;
1264 1566
1265 if (expect_true (!CCTX_EXPIRED (cctx))) 1567 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1266 return cctx; 1568 return cctx;
1267 1569
1268 cctx_destroy (cctx); 1570 cctx_destroy (cctx);
1269 } 1571 }
1270 1572
… …
1272} 1574}
1273 1575
1274static void 1576static void
1275cctx_put (coro_cctx *cctx) 1577cctx_put (coro_cctx *cctx)
1276{ 1578{
1277 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1579 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1278 1580
1279 /* free another cctx if overlimit */ 1581 /* free another cctx if overlimit */
1280 if (expect_false (cctx_idle >= cctx_max_idle)) 1582 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1281 { 1583 {
1282 coro_cctx *first = cctx_first; 1584 coro_cctx *first = cctx_first;
1283 cctx_first = first->next; 1585 cctx_first = first->next;
1284 --cctx_idle; 1586 --cctx_idle;
1285 1587
… …
1296static void 1598static void
1297transfer_check (pTHX_ struct coro *prev, struct coro *next) 1599transfer_check (pTHX_ struct coro *prev, struct coro *next)
1298{ 1600{
1299 /* TODO: throwing up here is considered harmful */ 1601 /* TODO: throwing up here is considered harmful */
1300 1602
1301 if (expect_true (prev != next)) 1603 if (ecb_expect_true (prev != next))
1302 { 1604 {
1303 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1605 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1304 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1606 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1305 1607
1306 if (expect_false (next->flags & CF_RUNNING)) 1608 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1307 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1308
1309 if (expect_false (next->flags & CF_DESTROYED))
1310 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1609 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1311 1610
1312#if !PERL_VERSION_ATLEAST (5,10,0) 1611#if !PERL_VERSION_ATLEAST (5,10,0)
1313 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1612 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1314 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1613 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1315#endif 1614#endif
1316 } 1615 }
1317} 1616}
1318 1617
1319/* always use the TRANSFER macro */ 1618/* always use the TRANSFER macro */
1320static void NOINLINE /* noinline so we have a fixed stackframe */ 1619static void ecb_noinline /* noinline so we have a fixed stackframe */
1321transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1620transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1322{ 1621{
1323 dSTACKLEVEL; 1622 dSTACKLEVEL;
1324 1623
1325 /* sometimes transfer is only called to set idle_sp */ 1624 /* sometimes transfer is only called to set idle_sp */
1326 if (expect_false (!next)) 1625 if (ecb_expect_false (!prev))
1327 { 1626 {
1328 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1627 cctx_current->idle_sp = STACKLEVEL;
1329 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1628 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1330 } 1629 }
1331 else if (expect_true (prev != next)) 1630 else if (ecb_expect_true (prev != next))
1332 { 1631 {
1333 coro_cctx *prev__cctx; 1632 coro_cctx *cctx_prev;
1334 1633
1335 if (expect_false (prev->flags & CF_NEW)) 1634 if (ecb_expect_false (prev->flags & CF_NEW))
1336 { 1635 {
1337 /* create a new empty/source context */ 1636 /* create a new empty/source context */
1338 prev->cctx = cctx_new_empty ();
1339 prev->flags &= ~CF_NEW; 1637 prev->flags &= ~CF_NEW;
1340 prev->flags |= CF_RUNNING; 1638 prev->flags |= CF_RUNNING;
1341 } 1639 }
1342 1640
1343 prev->flags &= ~CF_RUNNING; 1641 prev->flags &= ~CF_RUNNING;
1344 next->flags |= CF_RUNNING; 1642 next->flags |= CF_RUNNING;
1345 1643
1346 /* first get rid of the old state */ 1644 /* first get rid of the old state */
1347 save_perl (aTHX_ prev); 1645 save_perl (aTHX_ prev);
1348 1646
1349 if (expect_false (next->flags & CF_NEW)) 1647 if (ecb_expect_false (next->flags & CF_NEW))
1350 { 1648 {
1351 /* need to start coroutine */ 1649 /* need to start coroutine */
1352 next->flags &= ~CF_NEW; 1650 next->flags &= ~CF_NEW;
1353 /* setup coroutine call */ 1651 /* setup coroutine call */
1354 coro_setup (aTHX_ next); 1652 init_perl (aTHX_ next);
1355 } 1653 }
1356 else 1654 else
1357 load_perl (aTHX_ next); 1655 load_perl (aTHX_ next);
1358 1656
1359 prev__cctx = prev->cctx;
1360
1361 /* possibly untie and reuse the cctx */ 1657 /* possibly untie and reuse the cctx */
1362 if (expect_true ( 1658 if (ecb_expect_true (
1363 prev__cctx->idle_sp == STACKLEVEL 1659 cctx_current->idle_sp == STACKLEVEL
1364 && !(prev__cctx->flags & CC_TRACE) 1660 && !(cctx_current->flags & CC_TRACE)
1365 && !force_cctx 1661 && !force_cctx
1366 )) 1662 ))
1367 { 1663 {
1368 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1664 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1369 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1665 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1370 1666
1371 prev->cctx = 0;
1372
1373 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1667 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1374 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1668 /* without this the next cctx_get might destroy the running cctx while still in use */
1375 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1669 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1376 if (!next->cctx) 1670 if (ecb_expect_true (!next->cctx))
1377 next->cctx = cctx_get (aTHX); 1671 next->cctx = cctx_get (aTHX);
1378 1672
1379 cctx_put (prev__cctx); 1673 cctx_put (cctx_current);
1380 } 1674 }
1675 else
1676 prev->cctx = cctx_current;
1381 1677
1382 ++next->usecount; 1678 ++next->usecount;
1383 1679
1384 if (expect_true (!next->cctx)) 1680 cctx_prev = cctx_current;
1385 next->cctx = cctx_get (aTHX); 1681 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1386 1682
1387 if (expect_false (prev__cctx != next->cctx)) 1683 next->cctx = 0;
1684
1685 if (ecb_expect_false (cctx_prev != cctx_current))
1388 { 1686 {
1389 prev__cctx->top_env = PL_top_env; 1687 cctx_prev->top_env = PL_top_env;
1390 PL_top_env = next->cctx->top_env; 1688 PL_top_env = cctx_current->top_env;
1391 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1689 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1392 } 1690 }
1393 1691
1394 transfer_tail (aTHX); 1692 transfer_tail (aTHX);
1395 } 1693 }
1396} 1694}
… …
1398#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1696#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1399#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1697#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1400 1698
1401/** high level stuff ********************************************************/ 1699/** high level stuff ********************************************************/
1402 1700
1701/* this function is actually Coro, not Coro::State, but we call it from here */
1702/* because it is convenient - but it hasn't been declared yet for that reason */
1403static int 1703static void
1704coro_call_on_destroy (pTHX_ struct coro *coro);
1705
1706static void
1404coro_state_destroy (pTHX_ struct coro *coro) 1707coro_state_destroy (pTHX_ struct coro *coro)
1405{ 1708{
1406 if (coro->flags & CF_DESTROYED) 1709 if (coro->flags & CF_ZOMBIE)
1407 return 0; 1710 return;
1408 1711
1409 if (coro->on_destroy)
1410 coro->on_destroy (aTHX_ coro); 1712 slf_destroy (aTHX_ coro);
1411 1713
1412 coro->flags |= CF_DESTROYED; 1714 coro->flags |= CF_ZOMBIE;
1413 1715
1414 if (coro->flags & CF_READY) 1716 if (coro->flags & CF_READY)
1415 { 1717 {
1416 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1718 /* reduce nready, as destroying a ready coro effectively unreadies it */
1417 /* alternative: look through all ready queues and remove the coro */ 1719 /* alternative: look through all ready queues and remove the coro */
1418 --coro_nready; 1720 --coro_nready;
1419 } 1721 }
1420 else 1722 else
1421 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1723 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1422 1724
1423 if (coro->mainstack && coro->mainstack != main_mainstack)
1424 {
1425 struct coro temp;
1426
1427 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1428
1429 save_perl (aTHX_ &temp);
1430 load_perl (aTHX_ coro);
1431
1432 coro_destruct (aTHX_ coro);
1433
1434 load_perl (aTHX_ &temp);
1435
1436 coro->slot = 0;
1437 }
1438
1439 cctx_destroy (coro->cctx);
1440 SvREFCNT_dec (coro->args);
1441
1442 if (coro->next) coro->next->prev = coro->prev; 1725 if (coro->next) coro->next->prev = coro->prev;
1443 if (coro->prev) coro->prev->next = coro->next; 1726 if (coro->prev) coro->prev->next = coro->next;
1444 if (coro == coro_first) coro_first = coro->next; 1727 if (coro == coro_first) coro_first = coro->next;
1445 1728
1446 return 1; 1729 if (coro->mainstack
1730 && coro->mainstack != main_mainstack
1731 && coro->slot
1732 && !PL_dirty)
1733 destroy_perl (aTHX_ coro);
1734
1735 cctx_destroy (coro->cctx);
1736 SvREFCNT_dec (coro->startcv);
1737 SvREFCNT_dec (coro->args);
1738 SvREFCNT_dec (coro->swap_sv);
1739 SvREFCNT_dec (CORO_THROW);
1740
1741 coro_call_on_destroy (aTHX_ coro);
1742
1743 /* more destruction mayhem in coro_state_free */
1447} 1744}
1448 1745
1449static int 1746static int
1450coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1747coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1451{ 1748{
1452 struct coro *coro = (struct coro *)mg->mg_ptr; 1749 struct coro *coro = (struct coro *)mg->mg_ptr;
1453 mg->mg_ptr = 0; 1750 mg->mg_ptr = 0;
1454 1751
1455 coro->hv = 0;
1456
1457 if (--coro->refcnt < 0)
1458 {
1459 coro_state_destroy (aTHX_ coro); 1752 coro_state_destroy (aTHX_ coro);
1753 SvREFCNT_dec (coro->on_destroy);
1754 SvREFCNT_dec (coro->status);
1755
1460 Safefree (coro); 1756 Safefree (coro);
1461 }
1462 1757
1463 return 0; 1758 return 0;
1464} 1759}
1465 1760
1466static int 1761static int ecb_cold
1467coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1762coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1468{ 1763{
1469 struct coro *coro = (struct coro *)mg->mg_ptr; 1764 /* called when perl clones the current process the slow way (windows process emulation) */
1470 1765 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1471 ++coro->refcnt; 1766 mg->mg_ptr = 0;
1767 mg->mg_virtual = 0;
1472 1768
1473 return 0; 1769 return 0;
1474} 1770}
1475 1771
1476static MGVTBL coro_state_vtbl = { 1772static MGVTBL coro_state_vtbl = {
… …
1499 1795
1500 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1796 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1501 TRANSFER (ta, 1); 1797 TRANSFER (ta, 1);
1502} 1798}
1503 1799
1504/*****************************************************************************/
1505/* gensub: simple closure generation utility */
1506
1507#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1508
1509/* create a closure from XS, returns a code reference */
1510/* the arg can be accessed via GENSUB_ARG from the callback */
1511/* the callback must use dXSARGS/XSRETURN */
1512static SV *
1513gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1514{
1515 CV *cv = (CV *)newSV (0);
1516
1517 sv_upgrade ((SV *)cv, SVt_PVCV);
1518
1519 CvANON_on (cv);
1520 CvISXSUB_on (cv);
1521 CvXSUB (cv) = xsub;
1522 GENSUB_ARG = arg;
1523
1524 return newRV_noinc ((SV *)cv);
1525}
1526
1527/** Coro ********************************************************************/ 1800/** Coro ********************************************************************/
1528 1801
1529INLINE void 1802ecb_inline void
1530coro_enq (pTHX_ struct coro *coro) 1803coro_enq (pTHX_ struct coro *coro)
1531{ 1804{
1532 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1805 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1533}
1534 1806
1535INLINE SV * 1807 SvREFCNT_inc_NN (coro->hv);
1808
1809 coro->next_ready = 0;
1810 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1811 ready [1] = coro;
1812}
1813
1814ecb_inline struct coro *
1536coro_deq (pTHX) 1815coro_deq (pTHX)
1537{ 1816{
1538 int prio; 1817 int prio;
1539 1818
1540 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1819 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1541 if (AvFILLp (coro_ready [prio]) >= 0) 1820 {
1542 return av_shift (coro_ready [prio]); 1821 struct coro **ready = coro_ready [prio];
1822
1823 if (ready [0])
1824 {
1825 struct coro *coro = ready [0];
1826 ready [0] = coro->next_ready;
1827 return coro;
1828 }
1829 }
1543 1830
1544 return 0; 1831 return 0;
1832}
1833
1834static void
1835invoke_sv_ready_hook_helper (void)
1836{
1837 dTHX;
1838 dSP;
1839
1840 ENTER;
1841 SAVETMPS;
1842
1843 PUSHMARK (SP);
1844 PUTBACK;
1845 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1846
1847 FREETMPS;
1848 LEAVE;
1545} 1849}
1546 1850
1547static int 1851static int
1548api_ready (pTHX_ SV *coro_sv) 1852api_ready (pTHX_ SV *coro_sv)
1549{ 1853{
1550 struct coro *coro;
1551 SV *sv_hook;
1552 void (*xs_hook)(void);
1553
1554 if (SvROK (coro_sv))
1555 coro_sv = SvRV (coro_sv);
1556
1557 coro = SvSTATE (coro_sv); 1854 struct coro *coro = SvSTATE (coro_sv);
1558 1855
1559 if (coro->flags & CF_READY) 1856 if (coro->flags & CF_READY)
1560 return 0; 1857 return 0;
1561 1858
1562 coro->flags |= CF_READY; 1859 coro->flags |= CF_READY;
1563 1860
1564 sv_hook = coro_nready ? 0 : coro_readyhook;
1565 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1566
1567 coro_enq (aTHX_ coro); 1861 coro_enq (aTHX_ coro);
1568 ++coro_nready;
1569 1862
1570 if (sv_hook) 1863 if (!coro_nready++)
1571 { 1864 if (coroapi.readyhook)
1572 dSP; 1865 coroapi.readyhook ();
1573
1574 ENTER;
1575 SAVETMPS;
1576
1577 PUSHMARK (SP);
1578 PUTBACK;
1579 call_sv (sv_hook, G_VOID | G_DISCARD);
1580
1581 FREETMPS;
1582 LEAVE;
1583 }
1584
1585 if (xs_hook)
1586 xs_hook ();
1587 1866
1588 return 1; 1867 return 1;
1589} 1868}
1590 1869
1591static int 1870static int
1592api_is_ready (pTHX_ SV *coro_sv) 1871api_is_ready (pTHX_ SV *coro_sv)
1593{ 1872{
1594 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1873 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1595} 1874}
1596 1875
1597INLINE void 1876/* expects to own a reference to next->hv */
1877ecb_inline void
1598prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1878prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1599{ 1879{
1600 SV *prev_sv, *next_sv;
1601
1602 for (;;)
1603 {
1604 next_sv = coro_deq (aTHX);
1605
1606 /* nothing to schedule: call the idle handler */
1607 if (expect_false (!next_sv))
1608 {
1609 dSP;
1610
1611 ENTER;
1612 SAVETMPS;
1613
1614 PUSHMARK (SP);
1615 PUTBACK;
1616 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1617
1618 FREETMPS;
1619 LEAVE;
1620 continue;
1621 }
1622
1623 ta->next = SvSTATE_hv (next_sv);
1624
1625 /* cannot transfer to destroyed coros, skip and look for next */
1626 if (expect_false (ta->next->flags & CF_DESTROYED))
1627 {
1628 SvREFCNT_dec (next_sv);
1629 /* coro_nready has already been taken care of by destroy */
1630 continue;
1631 }
1632
1633 --coro_nready;
1634 break;
1635 }
1636
1637 /* free this only after the transfer */
1638 prev_sv = SvRV (coro_current); 1880 SV *prev_sv = SvRV (coro_current);
1881
1639 ta->prev = SvSTATE_hv (prev_sv); 1882 ta->prev = SvSTATE_hv (prev_sv);
1883 ta->next = next;
1884
1640 TRANSFER_CHECK (*ta); 1885 TRANSFER_CHECK (*ta);
1641 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1886
1642 ta->next->flags &= ~CF_READY;
1643 SvRV_set (coro_current, next_sv); 1887 SvRV_set (coro_current, (SV *)next->hv);
1644 1888
1645 free_coro_mortal (aTHX); 1889 free_coro_mortal (aTHX);
1646 coro_mortal = prev_sv; 1890 coro_mortal = prev_sv;
1647} 1891}
1648 1892
1649INLINE void 1893static void
1894prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1895{
1896 for (;;)
1897 {
1898 struct coro *next = coro_deq (aTHX);
1899
1900 if (ecb_expect_true (next))
1901 {
1902 /* cannot transfer to destroyed coros, skip and look for next */
1903 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1904 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1905 else
1906 {
1907 next->flags &= ~CF_READY;
1908 --coro_nready;
1909
1910 prepare_schedule_to (aTHX_ ta, next);
1911 break;
1912 }
1913 }
1914 else
1915 {
1916 /* nothing to schedule: call the idle handler */
1917 if (SvROK (sv_idle)
1918 && SvOBJECT (SvRV (sv_idle)))
1919 {
1920 if (SvRV (sv_idle) == SvRV (coro_current))
1921 {
1922 require_pv ("Carp");
1923
1924 {
1925 dSP;
1926
1927 ENTER;
1928 SAVETMPS;
1929
1930 PUSHMARK (SP);
1931 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1932 PUTBACK;
1933 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1934
1935 FREETMPS;
1936 LEAVE;
1937 }
1938 }
1939
1940 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1941 api_ready (aTHX_ SvRV (sv_idle));
1942 --coro_nready;
1943 }
1944 else
1945 {
1946 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1947 dSP;
1948
1949 ENTER;
1950 SAVETMPS;
1951
1952 PUSHMARK (SP);
1953 PUTBACK;
1954 call_sv (sv_idle, G_VOID | G_DISCARD);
1955
1956 FREETMPS;
1957 LEAVE;
1958 }
1959 }
1960 }
1961}
1962
1963ecb_inline void
1650prepare_cede (pTHX_ struct coro_transfer_args *ta) 1964prepare_cede (pTHX_ struct coro_transfer_args *ta)
1651{ 1965{
1652 api_ready (aTHX_ coro_current); 1966 api_ready (aTHX_ coro_current);
1653 prepare_schedule (aTHX_ ta); 1967 prepare_schedule (aTHX_ ta);
1654} 1968}
1655 1969
1656INLINE void 1970ecb_inline void
1657prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1971prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1658{ 1972{
1659 SV *prev = SvRV (coro_current); 1973 SV *prev = SvRV (coro_current);
1660 1974
1661 if (coro_nready) 1975 if (coro_nready)
… …
1674 1988
1675 prepare_schedule (aTHX_ &ta); 1989 prepare_schedule (aTHX_ &ta);
1676 TRANSFER (ta, 1); 1990 TRANSFER (ta, 1);
1677} 1991}
1678 1992
1993static void
1994api_schedule_to (pTHX_ SV *coro_sv)
1995{
1996 struct coro_transfer_args ta;
1997 struct coro *next = SvSTATE (coro_sv);
1998
1999 SvREFCNT_inc_NN (coro_sv);
2000 prepare_schedule_to (aTHX_ &ta, next);
2001}
2002
1679static int 2003static int
1680api_cede (pTHX) 2004api_cede (pTHX)
1681{ 2005{
1682 struct coro_transfer_args ta; 2006 struct coro_transfer_args ta;
1683 2007
1684 prepare_cede (aTHX_ &ta); 2008 prepare_cede (aTHX_ &ta);
1685 2009
1686 if (expect_true (ta.prev != ta.next)) 2010 if (ecb_expect_true (ta.prev != ta.next))
1687 { 2011 {
1688 TRANSFER (ta, 1); 2012 TRANSFER (ta, 1);
1689 return 1; 2013 return 1;
1690 } 2014 }
1691 else 2015 else
… …
1710static void 2034static void
1711api_trace (pTHX_ SV *coro_sv, int flags) 2035api_trace (pTHX_ SV *coro_sv, int flags)
1712{ 2036{
1713 struct coro *coro = SvSTATE (coro_sv); 2037 struct coro *coro = SvSTATE (coro_sv);
1714 2038
2039 if (coro->flags & CF_RUNNING)
2040 croak ("cannot enable tracing on a running coroutine, caught");
2041
1715 if (flags & CC_TRACE) 2042 if (flags & CC_TRACE)
1716 { 2043 {
1717 if (!coro->cctx) 2044 if (!coro->cctx)
1718 coro->cctx = cctx_new_run (); 2045 coro->cctx = cctx_new_run ();
1719 else if (!(coro->cctx->flags & CC_TRACE)) 2046 else if (!(coro->cctx->flags & CC_TRACE))
1720 croak ("cannot enable tracing on coroutine with custom stack,"); 2047 croak ("cannot enable tracing on coroutine with custom stack, caught");
1721 2048
1722 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2049 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1723 } 2050 }
1724 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2051 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1725 { 2052 {
… …
1730 else 2057 else
1731 coro->slot->runops = RUNOPS_DEFAULT; 2058 coro->slot->runops = RUNOPS_DEFAULT;
1732 } 2059 }
1733} 2060}
1734 2061
2062static void
2063coro_push_av (pTHX_ AV *av, I32 gimme_v)
2064{
2065 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2066 {
2067 dSP;
2068
2069 if (gimme_v == G_SCALAR)
2070 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2071 else
2072 {
2073 int i;
2074 EXTEND (SP, AvFILLp (av) + 1);
2075
2076 for (i = 0; i <= AvFILLp (av); ++i)
2077 PUSHs (AvARRAY (av)[i]);
2078 }
2079
2080 PUTBACK;
2081 }
2082}
2083
2084static void
2085coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2086{
2087 if (!coro->on_destroy)
2088 coro->on_destroy = newAV ();
2089
2090 av_push (coro->on_destroy, cb);
2091}
2092
2093static void
2094slf_destroy_join (pTHX_ struct CoroSLF *frame)
2095{
2096 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2097}
2098
2099static int
2100slf_check_join (pTHX_ struct CoroSLF *frame)
2101{
2102 struct coro *coro = (struct coro *)frame->data;
2103
2104 if (!coro->status)
2105 return 1;
2106
2107 frame->destroy = 0;
2108
2109 coro_push_av (aTHX_ coro->status, GIMME_V);
2110
2111 SvREFCNT_dec ((SV *)coro->hv);
2112
2113 return 0;
2114}
2115
2116static void
2117slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2118{
2119 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2120
2121 if (items > 1)
2122 croak ("join called with too many arguments");
2123
2124 if (coro->status)
2125 frame->prepare = prepare_nop;
2126 else
2127 {
2128 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2129 frame->prepare = prepare_schedule;
2130 }
2131
2132 frame->check = slf_check_join;
2133 frame->destroy = slf_destroy_join;
2134 frame->data = (void *)coro;
2135 SvREFCNT_inc (coro->hv);
2136}
2137
2138static void
2139coro_call_on_destroy (pTHX_ struct coro *coro)
2140{
2141 AV *od = coro->on_destroy;
2142
2143 if (!od)
2144 return;
2145
2146 coro->on_destroy = 0;
2147 sv_2mortal ((SV *)od);
2148
2149 while (AvFILLp (od) >= 0)
2150 {
2151 SV *cb = sv_2mortal (av_pop (od));
2152
2153 /* coro hv's (and only hv's at the moment) are supported as well */
2154 if (SvSTATEhv_p (aTHX_ cb))
2155 api_ready (aTHX_ cb);
2156 else
2157 {
2158 dSP; /* don't disturb outer sp */
2159 PUSHMARK (SP);
2160
2161 if (coro->status)
2162 {
2163 PUTBACK;
2164 coro_push_av (aTHX_ coro->status, G_ARRAY);
2165 SPAGAIN;
2166 }
2167
2168 PUTBACK;
2169 call_sv (cb, G_VOID | G_DISCARD);
2170 }
2171 }
2172}
2173
2174static void
2175coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2176{
2177 AV *av;
2178
2179 if (coro->status)
2180 {
2181 av = coro->status;
2182 av_clear (av);
2183 }
2184 else
2185 av = coro->status = newAV ();
2186
2187 /* items are actually not so common, so optimise for this case */
2188 if (items)
2189 {
2190 int i;
2191
2192 av_extend (av, items - 1);
2193
2194 for (i = 0; i < items; ++i)
2195 av_push (av, SvREFCNT_inc_NN (arg [i]));
2196 }
2197}
2198
2199static void
2200slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2201{
2202 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2203 api_ready (aTHX_ sv_manager);
2204
2205 frame->prepare = prepare_schedule;
2206 frame->check = slf_check_repeat;
2207
2208 /* as a minor optimisation, we could unwind all stacks here */
2209 /* but that puts extra pressure on pp_slf, and is not worth much */
2210 /*coro_unwind_stacks (aTHX);*/
2211}
2212
2213static void
2214slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2215{
2216 HV *coro_hv = (HV *)SvRV (coro_current);
2217
2218 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2219 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2220}
2221
2222static void
2223slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2224{
2225 HV *coro_hv;
2226 struct coro *coro;
2227
2228 if (items <= 0)
2229 croak ("Coro::cancel called without coro object,");
2230
2231 coro = SvSTATE (arg [0]);
2232 coro_hv = coro->hv;
2233
2234 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2235
2236 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2237 {
2238 /* coro currently busy cancelling something, so just notify it */
2239 coro->slf_frame.data = (void *)coro;
2240
2241 frame->prepare = prepare_nop;
2242 frame->check = slf_check_nop;
2243 }
2244 else if (coro_hv == (HV *)SvRV (coro_current))
2245 {
2246 /* cancelling the current coro is allowed, and equals terminate */
2247 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2248 }
2249 else
2250 {
2251 struct coro *self = SvSTATE_current;
2252
2253 /* otherwise we cancel directly, purely for speed reasons
2254 * unfortunately, this requires some magic trickery, as
2255 * somebody else could cancel us, so we have to fight the cancellation.
2256 * this is ugly, and hopefully fully worth the extra speed.
2257 * besides, I can't get the slow-but-safe version working...
2258 */
2259 slf_frame.data = 0;
2260 self->flags |= CF_NOCANCEL;
2261 coro_state_destroy (aTHX_ coro);
2262 self->flags &= ~CF_NOCANCEL;
2263
2264 if (slf_frame.data)
2265 {
2266 /* while we were busy we have been cancelled, so terminate */
2267 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2268 }
2269 else
2270 {
2271 frame->prepare = prepare_nop;
2272 frame->check = slf_check_nop;
2273 }
2274 }
2275}
2276
2277static int
2278slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2279{
2280 frame->prepare = 0;
2281 coro_unwind_stacks (aTHX);
2282
2283 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2284
2285 return 1;
2286}
2287
2288static int
2289safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2290{
2291 if (coro->cctx)
2292 croak ("coro inside C callback, unable to cancel at this time, caught");
2293
2294 if (coro->flags & CF_NEW)
2295 {
2296 coro_set_status (aTHX_ coro, arg, items);
2297 coro_state_destroy (aTHX_ coro);
2298 }
2299 else
2300 {
2301 if (!coro->slf_frame.prepare)
2302 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2303
2304 slf_destroy (aTHX_ coro);
2305
2306 coro_set_status (aTHX_ coro, arg, items);
2307 coro->slf_frame.prepare = prepare_nop;
2308 coro->slf_frame.check = slf_check_safe_cancel;
2309
2310 api_ready (aTHX_ (SV *)coro->hv);
2311 }
2312
2313 return 1;
2314}
2315
2316/*****************************************************************************/
2317/* async pool handler */
2318
2319static int
2320slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2321{
2322 HV *hv = (HV *)SvRV (coro_current);
2323 struct coro *coro = (struct coro *)frame->data;
2324
2325 if (!coro->invoke_cb)
2326 return 1; /* loop till we have invoke */
2327 else
2328 {
2329 hv_store (hv, "desc", sizeof ("desc") - 1,
2330 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2331
2332 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2333
2334 {
2335 dSP;
2336 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2337 PUTBACK;
2338 }
2339
2340 SvREFCNT_dec (GvAV (PL_defgv));
2341 GvAV (PL_defgv) = coro->invoke_av;
2342 coro->invoke_av = 0;
2343
2344 return 0;
2345 }
2346}
2347
2348static void
2349slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2350{
2351 HV *hv = (HV *)SvRV (coro_current);
2352 struct coro *coro = SvSTATE_hv ((SV *)hv);
2353
2354 if (ecb_expect_true (coro->saved_deffh))
2355 {
2356 /* subsequent iteration */
2357 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2358 coro->saved_deffh = 0;
2359
2360 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2361 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2362 {
2363 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2364 return;
2365 }
2366 else
2367 {
2368 av_clear (GvAV (PL_defgv));
2369 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2370
2371 coro->prio = 0;
2372
2373 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2374 api_trace (aTHX_ coro_current, 0);
2375
2376 frame->prepare = prepare_schedule;
2377 av_push (av_async_pool, SvREFCNT_inc (hv));
2378 }
2379 }
2380 else
2381 {
2382 /* first iteration, simply fall through */
2383 frame->prepare = prepare_nop;
2384 }
2385
2386 frame->check = slf_check_pool_handler;
2387 frame->data = (void *)coro;
2388}
2389
1735/*****************************************************************************/ 2390/*****************************************************************************/
1736/* rouse callback */ 2391/* rouse callback */
1737 2392
1738#define CORO_MAGIC_type_rouse PERL_MAGIC_ext 2393#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1739 2394
1740static void 2395static void
1741coro_rouse_callback (pTHX_ CV *cv) 2396coro_rouse_callback (pTHX_ CV *cv)
1742{ 2397{
1743 dXSARGS; 2398 dXSARGS;
1744 SV *data = (SV *)GENSUB_ARG; 2399 SV *data = (SV *)S_GENSUB_ARG;
1745 2400
1746 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2401 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1747 { 2402 {
1748 /* first call, set args */ 2403 /* first call, set args */
1749 int i; 2404 SV *coro = SvRV (data);
1750 AV *av = newAV (); 2405 AV *av = newAV ();
1751 SV *coro = SvRV (data);
1752 2406
1753 SvRV_set (data, (SV *)av); 2407 SvRV_set (data, (SV *)av);
1754 api_ready (aTHX_ coro);
1755 SvREFCNT_dec (coro);
1756 2408
1757 /* better take a full copy of the arguments */ 2409 /* better take a full copy of the arguments */
1758 while (items--) 2410 while (items--)
1759 av_store (av, items, newSVsv (ST (items))); 2411 av_store (av, items, newSVsv (ST (items)));
2412
2413 api_ready (aTHX_ coro);
2414 SvREFCNT_dec (coro);
1760 } 2415 }
1761 2416
1762 XSRETURN_EMPTY; 2417 XSRETURN_EMPTY;
1763} 2418}
1764 2419
1765static int 2420static int
1766slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2421slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1767{ 2422{
1768 SV *data = (SV *)frame->data; 2423 SV *data = (SV *)frame->data;
1769 2424
1770 if (CORO_THROW) 2425 if (CORO_THROW)
1771 return 0; 2426 return 0;
1772 2427
1773 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2428 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1774 return 1; 2429 return 1;
… …
1781 2436
1782 EXTEND (SP, AvFILLp (av) + 1); 2437 EXTEND (SP, AvFILLp (av) + 1);
1783 for (i = 0; i <= AvFILLp (av); ++i) 2438 for (i = 0; i <= AvFILLp (av); ++i)
1784 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2439 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1785 2440
1786 /* we have stolen the elements, so ste length to zero and free */ 2441 /* we have stolen the elements, so set length to zero and free */
1787 AvFILLp (av) = -1; 2442 AvFILLp (av) = -1;
1788 av_undef (av); 2443 av_undef (av);
1789 2444
1790 PUTBACK; 2445 PUTBACK;
1791 } 2446 }
… …
1810 cb = sv_2mortal (coro->rouse_cb); 2465 cb = sv_2mortal (coro->rouse_cb);
1811 coro->rouse_cb = 0; 2466 coro->rouse_cb = 0;
1812 } 2467 }
1813 2468
1814 if (!SvROK (cb) 2469 if (!SvROK (cb)
1815 || SvTYPE (SvRV (cb)) != SVt_PVCV 2470 || SvTYPE (SvRV (cb)) != SVt_PVCV
1816 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2471 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1817 croak ("Coro::rouse_wait called with illegal callback argument,"); 2472 croak ("Coro::rouse_wait called with illegal callback argument,");
1818 2473
1819 { 2474 {
1820 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2475 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1821 SV *data = (SV *)GENSUB_ARG; 2476 SV *data = (SV *)S_GENSUB_ARG;
1822 2477
1823 frame->data = (void *)data; 2478 frame->data = (void *)data;
1824 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2479 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1825 frame->check = slf_check_rouse_wait; 2480 frame->check = slf_check_rouse_wait;
1826 } 2481 }
… …
1830coro_new_rouse_cb (pTHX) 2485coro_new_rouse_cb (pTHX)
1831{ 2486{
1832 HV *hv = (HV *)SvRV (coro_current); 2487 HV *hv = (HV *)SvRV (coro_current);
1833 struct coro *coro = SvSTATE_hv (hv); 2488 struct coro *coro = SvSTATE_hv (hv);
1834 SV *data = newRV_inc ((SV *)hv); 2489 SV *data = newRV_inc ((SV *)hv);
1835 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2490 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1836 2491
1837 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2492 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1838 SvREFCNT_dec (data); /* magicext increases the refcount */ 2493 SvREFCNT_dec (data); /* magicext increases the refcount */
1839 2494
1840 SvREFCNT_dec (coro->rouse_cb); 2495 SvREFCNT_dec (coro->rouse_cb);
… …
1898 frame->prepare = prepare_schedule; 2553 frame->prepare = prepare_schedule;
1899 frame->check = slf_check_nop; 2554 frame->check = slf_check_nop;
1900} 2555}
1901 2556
1902static void 2557static void
2558slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2559{
2560 struct coro *next = (struct coro *)slf_frame.data;
2561
2562 SvREFCNT_inc_NN (next->hv);
2563 prepare_schedule_to (aTHX_ ta, next);
2564}
2565
2566static void
2567slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2568{
2569 if (!items)
2570 croak ("Coro::schedule_to expects a coroutine argument, caught");
2571
2572 frame->data = (void *)SvSTATE (arg [0]);
2573 frame->prepare = slf_prepare_schedule_to;
2574 frame->check = slf_check_nop;
2575}
2576
2577static void
2578slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2579{
2580 api_ready (aTHX_ SvRV (coro_current));
2581
2582 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2583}
2584
2585static void
1903slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2586slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1904{ 2587{
1905 frame->prepare = prepare_cede; 2588 frame->prepare = prepare_cede;
1906 frame->check = slf_check_nop; 2589 frame->check = slf_check_nop;
1907} 2590}
… …
1909static void 2592static void
1910slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2593slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1911{ 2594{
1912 frame->prepare = prepare_cede_notself; 2595 frame->prepare = prepare_cede_notself;
1913 frame->check = slf_check_nop; 2596 frame->check = slf_check_nop;
2597}
2598
2599/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2600static void
2601slf_destroy (pTHX_ struct coro *coro)
2602{
2603 /* this callback is reserved for slf functions needing to do cleanup */
2604 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2605 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2606
2607 /*
2608 * The on_destroy above most likely is from an SLF call.
2609 * Since by definition the SLF call will not finish when we destroy
2610 * the coro, we will have to force-finish it here, otherwise
2611 * cleanup functions cannot call SLF functions.
2612 */
2613 coro->slf_frame.prepare = 0;
1914} 2614}
1915 2615
1916/* 2616/*
1917 * these not obviously related functions are all rolled into one 2617 * these not obviously related functions are all rolled into one
1918 * function to increase chances that they all will call transfer with the same 2618 * function to increase chances that they all will call transfer with the same
… …
1925 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2625 I32 checkmark; /* mark SP to see how many elements check has pushed */
1926 2626
1927 /* set up the slf frame, unless it has already been set-up */ 2627 /* set up the slf frame, unless it has already been set-up */
1928 /* the latter happens when a new coro has been started */ 2628 /* the latter happens when a new coro has been started */
1929 /* or when a new cctx was attached to an existing coroutine */ 2629 /* or when a new cctx was attached to an existing coroutine */
1930 if (expect_true (!slf_frame.prepare)) 2630 if (ecb_expect_true (!slf_frame.prepare))
1931 { 2631 {
1932 /* first iteration */ 2632 /* first iteration */
1933 dSP; 2633 dSP;
1934 SV **arg = PL_stack_base + TOPMARK + 1; 2634 SV **arg = PL_stack_base + TOPMARK + 1;
1935 int items = SP - arg; /* args without function object */ 2635 int items = SP - arg; /* args without function object */
… …
1976 while (slf_frame.check (aTHX_ &slf_frame)); 2676 while (slf_frame.check (aTHX_ &slf_frame));
1977 2677
1978 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2678 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1979 2679
1980 /* exception handling */ 2680 /* exception handling */
1981 if (expect_false (CORO_THROW)) 2681 if (ecb_expect_false (CORO_THROW))
1982 { 2682 {
1983 SV *exception = sv_2mortal (CORO_THROW); 2683 SV *exception = sv_2mortal (CORO_THROW);
1984 2684
1985 CORO_THROW = 0; 2685 CORO_THROW = 0;
1986 sv_setsv (ERRSV, exception); 2686 sv_setsv (ERRSV, exception);
1987 croak (0); 2687 croak (0);
1988 } 2688 }
1989 2689
1990 /* return value handling - mostly like entersub */ 2690 /* return value handling - mostly like entersub */
1991 /* make sure we put something on the stack in scalar context */ 2691 /* make sure we put something on the stack in scalar context */
1992 if (GIMME_V == G_SCALAR) 2692 if (GIMME_V == G_SCALAR
2693 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
1993 { 2694 {
1994 dSP; 2695 dSP;
1995 SV **bot = PL_stack_base + checkmark; 2696 SV **bot = PL_stack_base + checkmark;
1996 2697
1997 if (sp == bot) /* too few, push undef */ 2698 if (sp == bot) /* too few, push undef */
1998 bot [1] = &PL_sv_undef; 2699 bot [1] = &PL_sv_undef;
1999 else if (sp != bot + 1) /* too many, take last one */ 2700 else /* too many, take last one */
2000 bot [1] = *sp; 2701 bot [1] = *sp;
2001 2702
2002 SP = bot + 1; 2703 SP = bot + 1;
2003 2704
2004 PUTBACK; 2705 PUTBACK;
… …
2037 if (PL_op->op_flags & OPf_STACKED) 2738 if (PL_op->op_flags & OPf_STACKED)
2038 { 2739 {
2039 if (items > slf_arga) 2740 if (items > slf_arga)
2040 { 2741 {
2041 slf_arga = items; 2742 slf_arga = items;
2042 free (slf_argv); 2743 Safefree (slf_argv);
2043 slf_argv = malloc (slf_arga * sizeof (SV *)); 2744 New (0, slf_argv, slf_arga, SV *);
2044 } 2745 }
2045 2746
2046 slf_argc = items; 2747 slf_argc = items;
2047 2748
2048 for (i = 0; i < items; ++i) 2749 for (i = 0; i < items; ++i)
… …
2050 } 2751 }
2051 else 2752 else
2052 slf_argc = 0; 2753 slf_argc = 0;
2053 2754
2054 PL_op->op_ppaddr = pp_slf; 2755 PL_op->op_ppaddr = pp_slf;
2055 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2756 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2056 2757
2057 PL_op = (OP *)&slf_restore; 2758 PL_op = (OP *)&slf_restore;
2759}
2760
2761/*****************************************************************************/
2762/* dynamic wind */
2763
2764static void
2765on_enterleave_call (pTHX_ SV *cb)
2766{
2767 dSP;
2768
2769 PUSHSTACK;
2770
2771 PUSHMARK (SP);
2772 PUTBACK;
2773 call_sv (cb, G_VOID | G_DISCARD);
2774 SPAGAIN;
2775
2776 POPSTACK;
2777}
2778
2779static SV *
2780coro_avp_pop_and_free (pTHX_ AV **avp)
2781{
2782 AV *av = *avp;
2783 SV *res = av_pop (av);
2784
2785 if (AvFILLp (av) < 0)
2786 {
2787 *avp = 0;
2788 SvREFCNT_dec (av);
2789 }
2790
2791 return res;
2792}
2793
2794static void
2795coro_pop_on_enter (pTHX_ void *coro)
2796{
2797 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2798 SvREFCNT_dec (cb);
2799}
2800
2801static void
2802coro_pop_on_leave (pTHX_ void *coro)
2803{
2804 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2805 on_enterleave_call (aTHX_ sv_2mortal (cb));
2058} 2806}
2059 2807
2060/*****************************************************************************/ 2808/*****************************************************************************/
2061/* PerlIO::cede */ 2809/* PerlIO::cede */
2062 2810
… …
2064{ 2812{
2065 PerlIOBuf base; 2813 PerlIOBuf base;
2066 NV next, every; 2814 NV next, every;
2067} PerlIOCede; 2815} PerlIOCede;
2068 2816
2069static IV 2817static IV ecb_cold
2070PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2818PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2071{ 2819{
2072 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2820 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2073 2821
2074 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2822 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2075 self->next = nvtime () + self->every; 2823 self->next = nvtime () + self->every;
2076 2824
2077 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2825 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2078} 2826}
2079 2827
2080static SV * 2828static SV * ecb_cold
2081PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2829PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2082{ 2830{
2083 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2831 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2084 2832
2085 return newSVnv (self->every); 2833 return newSVnv (self->every);
… …
2136/* Coro::Semaphore & Coro::Signal */ 2884/* Coro::Semaphore & Coro::Signal */
2137 2885
2138static SV * 2886static SV *
2139coro_waitarray_new (pTHX_ int count) 2887coro_waitarray_new (pTHX_ int count)
2140{ 2888{
2141 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2889 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2142 AV *av = newAV (); 2890 AV *av = newAV ();
2143 SV **ary; 2891 SV **ary;
2144 2892
2145 /* unfortunately, building manually saves memory */ 2893 /* unfortunately, building manually saves memory */
2146 Newx (ary, 2, SV *); 2894 Newx (ary, 2, SV *);
2147 AvALLOC (av) = ary; 2895 AvALLOC (av) = ary;
2148 SvPV_set ((SV *)av, (char *)ary); /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2896#if PERL_VERSION_ATLEAST (5,10,0)
2897 AvARRAY (av) = ary;
2898#else
2899 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2900 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2901 SvPVX ((SV *)av) = (char *)ary;
2902#endif
2149 AvMAX (av) = 1; 2903 AvMAX (av) = 1;
2150 AvFILLp (av) = 0; 2904 AvFILLp (av) = 0;
2151 ary [0] = newSViv (count); 2905 ary [0] = newSViv (count);
2152 2906
2153 return newRV_noinc ((SV *)av); 2907 return newRV_noinc ((SV *)av);
… …
2173 AvARRAY (av)[0] = AvARRAY (av)[1]; 2927 AvARRAY (av)[0] = AvARRAY (av)[1];
2174 AvARRAY (av)[1] = count_sv; 2928 AvARRAY (av)[1] = count_sv;
2175 cb = av_shift (av); 2929 cb = av_shift (av);
2176 2930
2177 if (SvOBJECT (cb)) 2931 if (SvOBJECT (cb))
2932 {
2178 api_ready (aTHX_ cb); 2933 api_ready (aTHX_ cb);
2179 else 2934 --count;
2180 croak ("callbacks not yet supported"); 2935 }
2936 else if (SvTYPE (cb) == SVt_PVCV)
2937 {
2938 dSP;
2939 PUSHMARK (SP);
2940 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2941 PUTBACK;
2942 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2943 }
2181 2944
2182 SvREFCNT_dec (cb); 2945 SvREFCNT_dec (cb);
2183
2184 --count;
2185 } 2946 }
2186} 2947}
2187 2948
2188static void 2949static void
2189coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2950coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2190{ 2951{
2191 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2952 /* call $sem->adjust (0) to possibly wake up some other waiters */
2192 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2953 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2193} 2954}
2194 2955
2195static int 2956static int
2196slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2957slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2197{ 2958{
2198 AV *av = (AV *)frame->data; 2959 AV *av = (AV *)frame->data;
2199 SV *count_sv = AvARRAY (av)[0]; 2960 SV *count_sv = AvARRAY (av)[0];
2961 SV *coro_hv = SvRV (coro_current);
2200 2962
2201 /* if we are about to throw, don't actually acquire the lock, just throw */ 2963 /* if we are about to throw, don't actually acquire the lock, just throw */
2202 if (CORO_THROW) 2964 if (CORO_THROW)
2203 return 0; 2965 return 0;
2204 else if (SvIVX (count_sv) > 0) 2966 else if (SvIVX (count_sv) > 0)
2205 { 2967 {
2206 SvSTATE_current->on_destroy = 0; 2968 frame->destroy = 0;
2207 2969
2208 if (acquire) 2970 if (acquire)
2209 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2971 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2210 else 2972 else
2211 coro_semaphore_adjust (aTHX_ av, 0); 2973 coro_semaphore_adjust (aTHX_ av, 0);
… …
2216 { 2978 {
2217 int i; 2979 int i;
2218 /* if we were woken up but can't down, we look through the whole */ 2980 /* if we were woken up but can't down, we look through the whole */
2219 /* waiters list and only add us if we aren't in there already */ 2981 /* waiters list and only add us if we aren't in there already */
2220 /* this avoids some degenerate memory usage cases */ 2982 /* this avoids some degenerate memory usage cases */
2221 2983 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2222 for (i = 1; i <= AvFILLp (av); ++i)
2223 if (AvARRAY (av)[i] == SvRV (coro_current)) 2984 if (AvARRAY (av)[i] == coro_hv)
2224 return 1; 2985 return 1;
2225 2986
2226 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2987 av_push (av, SvREFCNT_inc (coro_hv));
2227 return 1; 2988 return 1;
2228 } 2989 }
2229} 2990}
2230 2991
2231static int 2992static int
… …
2254 { 3015 {
2255 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3016 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2256 3017
2257 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3018 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2258 frame->prepare = prepare_schedule; 3019 frame->prepare = prepare_schedule;
2259
2260 /* to avoid race conditions when a woken-up coro gets terminated */ 3020 /* to avoid race conditions when a woken-up coro gets terminated */
2261 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3021 /* we arrange for a temporary on_destroy that calls adjust (0) */
2262 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3022 frame->destroy = coro_semaphore_destroy;
2263 } 3023 }
2264} 3024}
2265 3025
2266static void 3026static void
2267slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3027slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2271} 3031}
2272 3032
2273static void 3033static void
2274slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3034slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2275{ 3035{
3036 if (items >= 2)
3037 {
3038 /* callback form */
3039 AV *av = (AV *)SvRV (arg [0]);
3040 SV *cb_cv = s_get_cv_croak (arg [1]);
3041
3042 av_push (av, SvREFCNT_inc_NN (cb_cv));
3043
3044 if (SvIVX (AvARRAY (av)[0]) > 0)
3045 coro_semaphore_adjust (aTHX_ av, 0);
3046
3047 frame->prepare = prepare_nop;
3048 frame->check = slf_check_nop;
3049 }
3050 else
3051 {
2276 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); 3052 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2277 frame->check = slf_check_semaphore_wait; 3053 frame->check = slf_check_semaphore_wait;
3054 }
2278} 3055}
2279 3056
2280/* signal */ 3057/* signal */
2281 3058
2282static void 3059static void
… …
2294 AvARRAY (av)[0] = AvARRAY (av)[1]; 3071 AvARRAY (av)[0] = AvARRAY (av)[1];
2295 AvARRAY (av)[1] = cb; 3072 AvARRAY (av)[1] = cb;
2296 3073
2297 cb = av_shift (av); 3074 cb = av_shift (av);
2298 3075
3076 if (SvTYPE (cb) == SVt_PVCV)
3077 {
3078 dSP;
3079 PUSHMARK (SP);
3080 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3081 PUTBACK;
3082 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3083 }
3084 else
3085 {
2299 api_ready (aTHX_ cb); 3086 api_ready (aTHX_ cb);
2300 sv_setiv (cb, 0); /* signal waiter */ 3087 sv_setiv (cb, 0); /* signal waiter */
3088 }
3089
2301 SvREFCNT_dec (cb); 3090 SvREFCNT_dec (cb);
2302 3091
2303 --count; 3092 --count;
2304 } 3093 }
2305} 3094}
… …
2314static void 3103static void
2315slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3104slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2316{ 3105{
2317 AV *av = (AV *)SvRV (arg [0]); 3106 AV *av = (AV *)SvRV (arg [0]);
2318 3107
3108 if (items >= 2)
3109 {
3110 SV *cb_cv = s_get_cv_croak (arg [1]);
3111 av_push (av, SvREFCNT_inc_NN (cb_cv));
3112
2319 if (SvIVX (AvARRAY (av)[0])) 3113 if (SvIVX (AvARRAY (av)[0]))
3114 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3115
3116 frame->prepare = prepare_nop;
3117 frame->check = slf_check_nop;
3118 }
3119 else if (SvIVX (AvARRAY (av)[0]))
2320 { 3120 {
2321 SvIVX (AvARRAY (av)[0]) = 0; 3121 SvIVX (AvARRAY (av)[0]) = 0;
2322 frame->prepare = prepare_nop; 3122 frame->prepare = prepare_nop;
2323 frame->check = slf_check_nop; 3123 frame->check = slf_check_nop;
2324 } 3124 }
2325 else 3125 else
2326 { 3126 {
2327 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3127 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2328 3128
2329 av_push (av, waiter); 3129 av_push (av, waiter);
2330 3130
2331 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3131 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2332 frame->prepare = prepare_schedule; 3132 frame->prepare = prepare_schedule;
… …
2350 3150
2351static void 3151static void
2352coro_aio_callback (pTHX_ CV *cv) 3152coro_aio_callback (pTHX_ CV *cv)
2353{ 3153{
2354 dXSARGS; 3154 dXSARGS;
2355 AV *state = (AV *)GENSUB_ARG; 3155 AV *state = (AV *)S_GENSUB_ARG;
2356 SV *coro = av_pop (state); 3156 SV *coro = av_pop (state);
2357 SV *data_sv = newSV (sizeof (struct io_state)); 3157 SV *data_sv = newSV (sizeof (struct io_state));
2358 3158
2359 av_extend (state, items); 3159 av_extend (state, items - 1);
2360 3160
2361 sv_upgrade (data_sv, SVt_PV); 3161 sv_upgrade (data_sv, SVt_PV);
2362 SvCUR_set (data_sv, sizeof (struct io_state)); 3162 SvCUR_set (data_sv, sizeof (struct io_state));
2363 SvPOK_only (data_sv); 3163 SvPOK_only (data_sv);
2364 3164
… …
2396 /* it quickly returns */ 3196 /* it quickly returns */
2397 if (CORO_THROW) 3197 if (CORO_THROW)
2398 return 0; 3198 return 0;
2399 3199
2400 /* one element that is an RV? repeat! */ 3200 /* one element that is an RV? repeat! */
2401 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3201 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2402 return 1; 3202 return 1;
2403 3203
2404 /* restore status */ 3204 /* restore status */
2405 { 3205 {
2406 SV *data_sv = av_pop (state); 3206 SV *data_sv = av_pop (state);
… …
2445 dSP; 3245 dSP;
2446 3246
2447 static SV *prio_cv; 3247 static SV *prio_cv;
2448 static SV *prio_sv; 3248 static SV *prio_sv;
2449 3249
2450 if (expect_false (!prio_cv)) 3250 if (ecb_expect_false (!prio_cv))
2451 { 3251 {
2452 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3252 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2453 prio_sv = newSViv (0); 3253 prio_sv = newSViv (0);
2454 } 3254 }
2455 3255
… …
2474 3274
2475 for (i = 0; i < items; ++i) 3275 for (i = 0; i < items; ++i)
2476 PUSHs (arg [i]); 3276 PUSHs (arg [i]);
2477 3277
2478 /* now push the callback closure */ 3278 /* now push the callback closure */
2479 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3279 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2480 3280
2481 /* now call the AIO function - we assume our request is uncancelable */ 3281 /* now call the AIO function - we assume our request is uncancelable */
2482 PUTBACK; 3282 PUTBACK;
2483 call_sv ((SV *)req, G_VOID | G_DISCARD); 3283 call_sv ((SV *)req, G_VOID | G_DISCARD);
2484 } 3284 }
2485 3285
2486 /* now that the requets is going, we loop toll we have a result */ 3286 /* now that the request is going, we loop till we have a result */
2487 frame->data = (void *)state; 3287 frame->data = (void *)state;
2488 frame->prepare = prepare_schedule; 3288 frame->prepare = prepare_schedule;
2489 frame->check = slf_check_aio_req; 3289 frame->check = slf_check_aio_req;
2490} 3290}
2491 3291
… …
2498 3298
2499 XSRETURN_EMPTY; 3299 XSRETURN_EMPTY;
2500} 3300}
2501 3301
2502/*****************************************************************************/ 3302/*****************************************************************************/
3303
3304#if CORO_CLONE
3305# include "clone.c"
3306#endif
3307
3308/*****************************************************************************/
3309
3310static SV *
3311coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3312{
3313 SV *coro_sv;
3314 struct coro *coro;
3315 MAGIC *mg;
3316 HV *hv;
3317 SV *cb;
3318 int i;
3319
3320 if (argc > 0)
3321 {
3322 cb = s_get_cv_croak (argv [0]);
3323
3324 if (!is_coro)
3325 {
3326 if (CvISXSUB (cb))
3327 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3328
3329 if (!CvROOT (cb))
3330 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3331 }
3332 }
3333
3334 Newz (0, coro, 1, struct coro);
3335 coro->args = newAV ();
3336 coro->flags = CF_NEW;
3337
3338 if (coro_first) coro_first->prev = coro;
3339 coro->next = coro_first;
3340 coro_first = coro;
3341
3342 coro->hv = hv = newHV ();
3343 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3344 mg->mg_flags |= MGf_DUP;
3345 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3346
3347 if (argc > 0)
3348 {
3349 av_extend (coro->args, argc + is_coro - 1);
3350
3351 if (is_coro)
3352 {
3353 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3354 cb = (SV *)cv_coro_run;
3355 }
3356
3357 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3358
3359 for (i = 1; i < argc; i++)
3360 av_push (coro->args, newSVsv (argv [i]));
3361 }
3362
3363 return coro_sv;
3364}
3365
3366#ifndef __cplusplus
3367ecb_cold XS(boot_Coro__State);
3368#endif
3369
3370#if CORO_JIT
3371
3372static void ecb_noinline ecb_cold
3373pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3374{
3375 dSP;
3376 AV *av = newAV ();
3377
3378 av_store (av, 3, newSVuv (d));
3379 av_store (av, 2, newSVuv (c));
3380 av_store (av, 1, newSVuv (b));
3381 av_store (av, 0, newSVuv (a));
3382
3383 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3384
3385 PUTBACK;
3386}
3387
3388static void ecb_noinline ecb_cold
3389jit_init (pTHX)
3390{
3391 dSP;
3392 SV *load, *save;
3393 char *map_base;
3394 char *load_ptr, *save_ptr;
3395 STRLEN load_len, save_len, map_len;
3396 int count;
3397
3398 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3399
3400 PUSHMARK (SP);
3401 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3402 #include "state.h"
3403 count = call_pv ("Coro::State::_jit", G_ARRAY);
3404 SPAGAIN;
3405
3406 save = POPs; save_ptr = SvPVbyte (save, save_len);
3407 load = POPs; load_ptr = SvPVbyte (load, load_len);
3408
3409 map_len = load_len + save_len + 16;
3410
3411 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3412
3413 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3414
3415 load_perl_slots = (load_save_perl_slots_type)map_base;
3416 memcpy (map_base, load_ptr, load_len);
3417
3418 map_base += (load_len + 15) & ~15;
3419
3420 save_perl_slots = (load_save_perl_slots_type)map_base;
3421 memcpy (map_base, save_ptr, save_len);
3422
3423 /* we are good citizens and try to make the page read-only, so the evil evil */
3424 /* hackers might have it a bit more difficult */
3425 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3426
3427 PUTBACK;
3428 eval_pv ("undef &Coro::State::_jit", 1);
3429}
3430
3431#endif
2503 3432
2504MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3433MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2505 3434
2506PROTOTYPES: DISABLE 3435PROTOTYPES: DISABLE
2507 3436
… …
2510#ifdef USE_ITHREADS 3439#ifdef USE_ITHREADS
2511# if CORO_PTHREAD 3440# if CORO_PTHREAD
2512 coro_thx = PERL_GET_CONTEXT; 3441 coro_thx = PERL_GET_CONTEXT;
2513# endif 3442# endif
2514#endif 3443#endif
2515 BOOT_PAGESIZE; 3444 /* perl defines these to check for existance first, but why it doesn't */
3445 /* just create them one at init time is not clear to me, except for */
3446 /* programs trying to delete them, but... */
3447 /* anyway, we declare this as invalid and make sure they are initialised here */
3448 DEFSV;
3449 ERRSV;
3450
3451 cctx_current = cctx_new_empty ();
2516 3452
2517 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3453 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2518 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3454 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2519 3455
2520 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3456 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
… …
2540 3476
2541 { 3477 {
2542 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3478 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2543 3479
2544 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3480 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2545 hv_store_ent (PL_custom_op_names, slf, 3481 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2546 newSVpv ("coro_slf", 0), 0);
2547 3482
2548 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3483 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2549 hv_store_ent (PL_custom_op_descs, slf, 3484 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2550 newSVpv ("coro schedule like function", 0), 0);
2551 } 3485 }
2552 3486
2553 coroapi.ver = CORO_API_VERSION; 3487 coroapi.ver = CORO_API_VERSION;
2554 coroapi.rev = CORO_API_REVISION; 3488 coroapi.rev = CORO_API_REVISION;
2555 3489
… …
2560 coroapi.prepare_nop = prepare_nop; 3494 coroapi.prepare_nop = prepare_nop;
2561 coroapi.prepare_schedule = prepare_schedule; 3495 coroapi.prepare_schedule = prepare_schedule;
2562 coroapi.prepare_cede = prepare_cede; 3496 coroapi.prepare_cede = prepare_cede;
2563 coroapi.prepare_cede_notself = prepare_cede_notself; 3497 coroapi.prepare_cede_notself = prepare_cede_notself;
2564 3498
2565 { 3499 time_init (aTHX);
2566 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2567 3500
2568 if (!svp) croak ("Time::HiRes is required");
2569 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2570
2571 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2572 }
2573
2574 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3501 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3502#if CORO_JIT
3503 PUTBACK;
3504 jit_init (aTHX);
3505 SPAGAIN;
3506#endif
2575} 3507}
2576 3508
2577SV * 3509SV *
2578new (char *klass, ...) 3510new (SV *klass, ...)
3511 ALIAS:
3512 Coro::new = 1
2579 CODE: 3513 CODE:
2580{ 3514 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2581 struct coro *coro; 3515 OUTPUT:
2582 MAGIC *mg;
2583 HV *hv;
2584 int i;
2585
2586 Newz (0, coro, 1, struct coro);
2587 coro->args = newAV ();
2588 coro->flags = CF_NEW;
2589
2590 if (coro_first) coro_first->prev = coro;
2591 coro->next = coro_first;
2592 coro_first = coro;
2593
2594 coro->hv = hv = newHV ();
2595 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2596 mg->mg_flags |= MGf_DUP;
2597 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2598
2599 av_extend (coro->args, items - 1);
2600 for (i = 1; i < items; i++)
2601 av_push (coro->args, newSVsv (ST (i)));
2602}
2603 OUTPUT:
2604 RETVAL 3516 RETVAL
2605 3517
2606void 3518void
2607transfer (...) 3519transfer (...)
2608 PROTOTYPE: $$ 3520 PROTOTYPE: $$
2609 CODE: 3521 CODE:
2610 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3522 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2611 3523
2612bool 3524SV *
2613_destroy (SV *coro_sv) 3525clone (Coro::State coro)
2614 CODE: 3526 CODE:
2615 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 3527{
3528#if CORO_CLONE
3529 struct coro *ncoro = coro_clone (aTHX_ coro);
3530 MAGIC *mg;
3531 /* TODO: too much duplication */
3532 ncoro->hv = newHV ();
3533 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3534 mg->mg_flags |= MGf_DUP;
3535 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3536#else
3537 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3538#endif
3539}
2616 OUTPUT: 3540 OUTPUT:
2617 RETVAL 3541 RETVAL
2618
2619void
2620_exit (int code)
2621 PROTOTYPE: $
2622 CODE:
2623 _exit (code);
2624 3542
2625int 3543int
2626cctx_stacksize (int new_stacksize = 0) 3544cctx_stacksize (int new_stacksize = 0)
2627 PROTOTYPE: ;$ 3545 PROTOTYPE: ;$
2628 CODE: 3546 CODE:
… …
2664void 3582void
2665list () 3583list ()
2666 PROTOTYPE: 3584 PROTOTYPE:
2667 PPCODE: 3585 PPCODE:
2668{ 3586{
2669 struct coro *coro; 3587 struct coro *coro;
2670 for (coro = coro_first; coro; coro = coro->next) 3588 for (coro = coro_first; coro; coro = coro->next)
2671 if (coro->hv) 3589 if (coro->hv)
2672 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3590 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2673} 3591}
2674 3592
… …
2678 eval = 1 3596 eval = 1
2679 CODE: 3597 CODE:
2680{ 3598{
2681 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3599 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2682 { 3600 {
2683 struct coro temp; 3601 struct coro *current = SvSTATE_current;
3602 struct CoroSLF slf_save;
2684 3603
2685 if (!(coro->flags & CF_RUNNING)) 3604 if (current != coro)
2686 { 3605 {
2687 PUTBACK; 3606 PUTBACK;
2688 save_perl (aTHX_ &temp); 3607 save_perl (aTHX_ current);
2689 load_perl (aTHX_ coro); 3608 load_perl (aTHX_ coro);
3609 /* the coro is most likely in an active SLF call.
3610 * while not strictly required (the code we execute is
3611 * not allowed to call any SLF functions), it's cleaner
3612 * to reinitialise the slf_frame and restore it later.
3613 * This might one day allow us to actually do SLF calls
3614 * from code executed here.
3615 */
3616 slf_save = slf_frame;
3617 slf_frame.prepare = 0;
3618 SPAGAIN;
2690 } 3619 }
2691 3620
2692 {
2693 dSP;
2694 ENTER;
2695 SAVETMPS;
2696 PUTBACK;
2697 PUSHSTACK; 3621 PUSHSTACK;
3622
2698 PUSHMARK (SP); 3623 PUSHMARK (SP);
3624 PUTBACK;
2699 3625
2700 if (ix) 3626 if (ix)
2701 eval_sv (coderef, 0); 3627 eval_sv (coderef, 0);
2702 else 3628 else
2703 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3629 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2704 3630
2705 POPSTACK; 3631 POPSTACK;
2706 SPAGAIN; 3632 SPAGAIN;
2707 FREETMPS;
2708 LEAVE;
2709 PUTBACK;
2710 }
2711 3633
2712 if (!(coro->flags & CF_RUNNING)) 3634 if (current != coro)
2713 { 3635 {
3636 PUTBACK;
3637 slf_frame = slf_save;
2714 save_perl (aTHX_ coro); 3638 save_perl (aTHX_ coro);
2715 load_perl (aTHX_ &temp); 3639 load_perl (aTHX_ current);
2716 SPAGAIN; 3640 SPAGAIN;
2717 } 3641 }
2718 } 3642 }
2719} 3643}
2720 3644
… …
2723 PROTOTYPE: $ 3647 PROTOTYPE: $
2724 ALIAS: 3648 ALIAS:
2725 is_ready = CF_READY 3649 is_ready = CF_READY
2726 is_running = CF_RUNNING 3650 is_running = CF_RUNNING
2727 is_new = CF_NEW 3651 is_new = CF_NEW
2728 is_destroyed = CF_DESTROYED 3652 is_destroyed = CF_ZOMBIE
3653 is_zombie = CF_ZOMBIE
3654 is_suspended = CF_SUSPENDED
2729 CODE: 3655 CODE:
2730 RETVAL = boolSV (coro->flags & ix); 3656 RETVAL = boolSV (coro->flags & ix);
2731 OUTPUT: 3657 OUTPUT:
2732 RETVAL 3658 RETVAL
2733 3659
2734void 3660void
2735throw (Coro::State self, SV *throw = &PL_sv_undef) 3661throw (SV *self, SV *exception = &PL_sv_undef)
2736 PROTOTYPE: $;$ 3662 PROTOTYPE: $;$
2737 CODE: 3663 CODE:
2738{ 3664{
3665 struct coro *coro = SvSTATE (self);
2739 struct coro *current = SvSTATE_current; 3666 struct coro *current = SvSTATE_current;
2740 SV **throwp = self == current ? &CORO_THROW : &self->except; 3667 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2741 SvREFCNT_dec (*throwp); 3668 SvREFCNT_dec (*exceptionp);
2742 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3669 SvGETMAGIC (exception);
3670 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3671
3672 api_ready (aTHX_ self);
2743} 3673}
2744 3674
2745void 3675void
2746api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3676api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2747 PROTOTYPE: $;$ 3677 PROTOTYPE: $;$
… …
2749 3679
2750SV * 3680SV *
2751has_cctx (Coro::State coro) 3681has_cctx (Coro::State coro)
2752 PROTOTYPE: $ 3682 PROTOTYPE: $
2753 CODE: 3683 CODE:
2754 RETVAL = boolSV (!!coro->cctx); 3684 /* maybe manage the running flag differently */
3685 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2755 OUTPUT: 3686 OUTPUT:
2756 RETVAL 3687 RETVAL
2757 3688
2758int 3689int
2759is_traced (Coro::State coro) 3690is_traced (Coro::State coro)
… …
2779 3710
2780void 3711void
2781force_cctx () 3712force_cctx ()
2782 PROTOTYPE: 3713 PROTOTYPE:
2783 CODE: 3714 CODE:
2784 SvSTATE_current->cctx->idle_sp = 0; 3715 cctx_current->idle_sp = 0;
2785 3716
2786void 3717void
2787swap_defsv (Coro::State self) 3718swap_defsv (Coro::State self)
2788 PROTOTYPE: $ 3719 PROTOTYPE: $
2789 ALIAS: 3720 ALIAS:
… …
2797 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3728 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2798 3729
2799 SV *tmp = *src; *src = *dst; *dst = tmp; 3730 SV *tmp = *src; *src = *dst; *dst = tmp;
2800 } 3731 }
2801 3732
3733void
3734cancel (Coro::State self)
3735 CODE:
3736 coro_state_destroy (aTHX_ self);
3737
3738SV *
3739enable_times (int enabled = enable_times)
3740 CODE:
3741{
3742 RETVAL = boolSV (enable_times);
3743
3744 if (enabled != enable_times)
3745 {
3746 enable_times = enabled;
3747
3748 coro_times_update ();
3749 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3750 }
3751}
3752 OUTPUT:
3753 RETVAL
3754
3755void
3756times (Coro::State self)
3757 PPCODE:
3758{
3759 struct coro *current = SvSTATE (coro_current);
3760
3761 if (ecb_expect_false (current == self))
3762 {
3763 coro_times_update ();
3764 coro_times_add (SvSTATE (coro_current));
3765 }
3766
3767 EXTEND (SP, 2);
3768 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3769 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3770
3771 if (ecb_expect_false (current == self))
3772 coro_times_sub (SvSTATE (coro_current));
3773}
3774
3775void
3776swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3777 CODE:
3778{
3779 struct coro *current = SvSTATE_current;
3780
3781 if (current == coro)
3782 SWAP_SVS (current);
3783
3784 if (!coro->swap_sv)
3785 coro->swap_sv = newAV ();
3786
3787 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3788 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3789
3790 if (current == coro)
3791 SWAP_SVS (current);
3792}
3793
2802 3794
2803MODULE = Coro::State PACKAGE = Coro 3795MODULE = Coro::State PACKAGE = Coro
2804 3796
2805BOOT: 3797BOOT:
2806{ 3798{
2807 int i;
2808
2809 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2810 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3799 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2811 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3800 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2812 3801 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2813 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3802 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2814 SvREADONLY_on (coro_current); 3803 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3804 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3805 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3806 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3807
3808 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3809 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3810 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3811 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
2815 3812
2816 coro_stash = gv_stashpv ("Coro", TRUE); 3813 coro_stash = gv_stashpv ("Coro", TRUE);
2817 3814
2818 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3815 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2819 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3816 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2820 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3817 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2821 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3818 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2822 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3819 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2823 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3820 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2824
2825 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2826 coro_ready[i] = newAV ();
2827 3821
2828 { 3822 {
2829 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3823 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2830 3824
2831 coroapi.schedule = api_schedule; 3825 coroapi.schedule = api_schedule;
3826 coroapi.schedule_to = api_schedule_to;
2832 coroapi.cede = api_cede; 3827 coroapi.cede = api_cede;
2833 coroapi.cede_notself = api_cede_notself; 3828 coroapi.cede_notself = api_cede_notself;
2834 coroapi.ready = api_ready; 3829 coroapi.ready = api_ready;
2835 coroapi.is_ready = api_is_ready; 3830 coroapi.is_ready = api_is_ready;
2836 coroapi.nready = coro_nready; 3831 coroapi.nready = coro_nready;
… …
2840 sv_setiv (sv, (IV)&coroapi); 3835 sv_setiv (sv, (IV)&coroapi);
2841 SvREADONLY_on (sv); 3836 SvREADONLY_on (sv);
2842 } 3837 }
2843} 3838}
2844 3839
3840SV *
3841async (...)
3842 PROTOTYPE: &@
3843 CODE:
3844 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3845 api_ready (aTHX_ RETVAL);
3846 OUTPUT:
3847 RETVAL
3848
3849void
3850_destroy (Coro::State coro)
3851 CODE:
3852 /* used by the manager thread */
3853 coro_state_destroy (aTHX_ coro);
3854
3855void
3856on_destroy (Coro::State coro, SV *cb)
3857 CODE:
3858 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3859
3860void
3861join (...)
3862 CODE:
3863 CORO_EXECUTE_SLF_XS (slf_init_join);
3864
3865void
3866terminate (...)
3867 CODE:
3868 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3869
3870void
3871cancel (...)
3872 CODE:
3873 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3874
3875int
3876safe_cancel (Coro::State self, ...)
3877 C_ARGS: aTHX_ self, &ST (1), items - 1
3878
2845void 3879void
2846schedule (...) 3880schedule (...)
2847 CODE: 3881 CODE:
2848 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3882 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3883
3884void
3885schedule_to (...)
3886 CODE:
3887 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3888
3889void
3890cede_to (...)
3891 CODE:
3892 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2849 3893
2850void 3894void
2851cede (...) 3895cede (...)
2852 CODE: 3896 CODE:
2853 CORO_EXECUTE_SLF_XS (slf_init_cede); 3897 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2867void 3911void
2868_set_readyhook (SV *hook) 3912_set_readyhook (SV *hook)
2869 PROTOTYPE: $ 3913 PROTOTYPE: $
2870 CODE: 3914 CODE:
2871 SvREFCNT_dec (coro_readyhook); 3915 SvREFCNT_dec (coro_readyhook);
3916 SvGETMAGIC (hook);
3917 if (SvOK (hook))
3918 {
2872 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3919 coro_readyhook = newSVsv (hook);
3920 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3921 }
3922 else
3923 {
3924 coro_readyhook = 0;
3925 CORO_READYHOOK = 0;
3926 }
2873 3927
2874int 3928int
2875prio (Coro::State coro, int newprio = 0) 3929prio (Coro::State coro, int newprio = 0)
2876 PROTOTYPE: $;$ 3930 PROTOTYPE: $;$
2877 ALIAS: 3931 ALIAS:
… …
2883 if (items > 1) 3937 if (items > 1)
2884 { 3938 {
2885 if (ix) 3939 if (ix)
2886 newprio = coro->prio - newprio; 3940 newprio = coro->prio - newprio;
2887 3941
2888 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3942 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2889 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3943 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2890 3944
2891 coro->prio = newprio; 3945 coro->prio = newprio;
2892 } 3946 }
2893} 3947}
2894 OUTPUT: 3948 OUTPUT:
… …
2908 CODE: 3962 CODE:
2909 RETVAL = coro_nready; 3963 RETVAL = coro_nready;
2910 OUTPUT: 3964 OUTPUT:
2911 RETVAL 3965 RETVAL
2912 3966
2913# for async_pool speedup
2914void 3967void
2915_pool_1 (SV *cb) 3968suspend (Coro::State self)
3969 PROTOTYPE: $
2916 CODE: 3970 CODE:
2917{ 3971 self->flags |= CF_SUSPENDED;
2918 HV *hv = (HV *)SvRV (coro_current);
2919 struct coro *coro = SvSTATE_hv ((SV *)hv);
2920 AV *defav = GvAV (PL_defgv);
2921 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2922 AV *invoke_av;
2923 int i, len;
2924 3972
2925 if (!invoke) 3973void
3974resume (Coro::State self)
3975 PROTOTYPE: $
3976 CODE:
3977 self->flags &= ~CF_SUSPENDED;
3978
3979void
3980_pool_handler (...)
3981 CODE:
3982 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3983
3984void
3985async_pool (SV *cv, ...)
3986 PROTOTYPE: &@
3987 PPCODE:
3988{
3989 HV *hv = (HV *)av_pop (av_async_pool);
3990 AV *av = newAV ();
3991 SV *cb = ST (0);
3992 int i;
3993
3994 av_extend (av, items - 2);
3995 for (i = 1; i < items; ++i)
3996 av_push (av, SvREFCNT_inc_NN (ST (i)));
3997
3998 if ((SV *)hv == &PL_sv_undef)
2926 { 3999 {
2927 SV *old = PL_diehook; 4000 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2928 PL_diehook = 0; 4001 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2929 SvREFCNT_dec (old); 4002 SvREFCNT_dec (sv);
2930 croak ("\3async_pool terminate\2\n");
2931 } 4003 }
2932 4004
2933 SvREFCNT_dec (coro->saved_deffh);
2934 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2935
2936 hv_store (hv, "desc", sizeof ("desc") - 1,
2937 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2938
2939 invoke_av = (AV *)SvRV (invoke);
2940 len = av_len (invoke_av);
2941
2942 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2943
2944 if (len > 0)
2945 { 4005 {
2946 av_fill (defav, len - 1); 4006 struct coro *coro = SvSTATE_hv (hv);
2947 for (i = 0; i < len; ++i) 4007
2948 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 4008 assert (!coro->invoke_cb);
4009 assert (!coro->invoke_av);
4010 coro->invoke_cb = SvREFCNT_inc (cb);
4011 coro->invoke_av = av;
2949 } 4012 }
2950}
2951 4013
2952void 4014 api_ready (aTHX_ (SV *)hv);
2953_pool_2 (SV *cb)
2954 CODE:
2955{
2956 HV *hv = (HV *)SvRV (coro_current);
2957 struct coro *coro = SvSTATE_hv ((SV *)hv);
2958 4015
2959 sv_setsv (cb, &PL_sv_undef); 4016 if (GIMME_V != G_VOID)
2960 4017 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
2961 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 4018 else
2962 coro->saved_deffh = 0;
2963
2964 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2965 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2966 {
2967 SV *old = PL_diehook;
2968 PL_diehook = 0;
2969 SvREFCNT_dec (old); 4019 SvREFCNT_dec (hv);
2970 croak ("\3async_pool terminate\2\n");
2971 }
2972
2973 av_clear (GvAV (PL_defgv));
2974 hv_store (hv, "desc", sizeof ("desc") - 1,
2975 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2976
2977 coro->prio = 0;
2978
2979 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2980 api_trace (aTHX_ coro_current, 0);
2981
2982 av_push (av_async_pool, newSVsv (coro_current));
2983} 4020}
2984 4021
2985SV * 4022SV *
2986rouse_cb () 4023rouse_cb ()
2987 PROTOTYPE: 4024 PROTOTYPE:
… …
2989 RETVAL = coro_new_rouse_cb (aTHX); 4026 RETVAL = coro_new_rouse_cb (aTHX);
2990 OUTPUT: 4027 OUTPUT:
2991 RETVAL 4028 RETVAL
2992 4029
2993void 4030void
2994rouse_wait (SV *cb = 0) 4031rouse_wait (...)
2995 PROTOTYPE: ;$ 4032 PROTOTYPE: ;$
2996 PPCODE: 4033 PPCODE:
2997 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4034 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2998 4035
4036void
4037on_enter (SV *block)
4038 ALIAS:
4039 on_leave = 1
4040 PROTOTYPE: &
4041 CODE:
4042{
4043 struct coro *coro = SvSTATE_current;
4044 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4045
4046 block = s_get_cv_croak (block);
4047
4048 if (!*avp)
4049 *avp = newAV ();
4050
4051 av_push (*avp, SvREFCNT_inc (block));
4052
4053 if (!ix)
4054 on_enterleave_call (aTHX_ block);
4055
4056 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4057 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4058 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4059}
4060
2999 4061
3000MODULE = Coro::State PACKAGE = PerlIO::cede 4062MODULE = Coro::State PACKAGE = PerlIO::cede
3001 4063
3002BOOT: 4064BOOT:
3003 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4065 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3006MODULE = Coro::State PACKAGE = Coro::Semaphore 4068MODULE = Coro::State PACKAGE = Coro::Semaphore
3007 4069
3008SV * 4070SV *
3009new (SV *klass, SV *count = 0) 4071new (SV *klass, SV *count = 0)
3010 CODE: 4072 CODE:
4073{
4074 int semcnt = 1;
4075
4076 if (count)
4077 {
4078 SvGETMAGIC (count);
4079
4080 if (SvOK (count))
4081 semcnt = SvIV (count);
4082 }
4083
3011 RETVAL = sv_bless ( 4084 RETVAL = sv_bless (
3012 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4085 coro_waitarray_new (aTHX_ semcnt),
3013 GvSTASH (CvGV (cv)) 4086 GvSTASH (CvGV (cv))
3014 ); 4087 );
4088}
3015 OUTPUT: 4089 OUTPUT:
3016 RETVAL 4090 RETVAL
3017 4091
3018# helper for Coro::Channel 4092# helper for Coro::Channel and others
3019SV * 4093SV *
3020_alloc (int count) 4094_alloc (int count)
3021 CODE: 4095 CODE:
3022 RETVAL = coro_waitarray_new (aTHX_ count); 4096 RETVAL = coro_waitarray_new (aTHX_ count);
3023 OUTPUT: 4097 OUTPUT:
… …
3036 adjust = 1 4110 adjust = 1
3037 CODE: 4111 CODE:
3038 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 4112 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
3039 4113
3040void 4114void
3041down (SV *self) 4115down (...)
3042 CODE: 4116 CODE:
3043 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 4117 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3044 4118
3045void 4119void
3046wait (SV *self) 4120wait (...)
3047 CODE: 4121 CODE:
3048 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); 4122 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
3049 4123
3050void 4124void
3051try (SV *self) 4125try (SV *self)
… …
3065 XSRETURN_NO; 4139 XSRETURN_NO;
3066} 4140}
3067 4141
3068void 4142void
3069waiters (SV *self) 4143waiters (SV *self)
3070 PPCODE: 4144 PPCODE:
3071{ 4145{
3072 AV *av = (AV *)SvRV (self); 4146 AV *av = (AV *)SvRV (self);
3073 int wcount = AvFILLp (av) + 1 - 1; 4147 int wcount = AvFILLp (av) + 1 - 1;
3074 4148
3075 if (GIMME_V == G_SCALAR) 4149 if (GIMME_V == G_SCALAR)
… …
3081 for (i = 1; i <= wcount; ++i) 4155 for (i = 1; i <= wcount; ++i)
3082 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4156 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3083 } 4157 }
3084} 4158}
3085 4159
4160MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4161
4162void
4163_may_delete (SV *sem, int count, unsigned int extra_refs)
4164 PPCODE:
4165{
4166 AV *av = (AV *)SvRV (sem);
4167
4168 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4169 && AvFILLp (av) == 0 /* no waiters, just count */
4170 && SvIV (AvARRAY (av)[0]) == count)
4171 XSRETURN_YES;
4172
4173 XSRETURN_NO;
4174}
4175
3086MODULE = Coro::State PACKAGE = Coro::Signal 4176MODULE = Coro::State PACKAGE = Coro::Signal
3087 4177
3088SV * 4178SV *
3089new (SV *klass) 4179new (SV *klass)
3090 CODE: 4180 CODE:
… …
3094 ); 4184 );
3095 OUTPUT: 4185 OUTPUT:
3096 RETVAL 4186 RETVAL
3097 4187
3098void 4188void
3099wait (SV *self) 4189wait (...)
3100 CODE: 4190 CODE:
3101 CORO_EXECUTE_SLF_XS (slf_init_signal_wait); 4191 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3102 4192
3103void 4193void
3104broadcast (SV *self) 4194broadcast (SV *self)
3105 CODE: 4195 CODE:
3106{ 4196{
3107 AV *av = (AV *)SvRV (self); 4197 AV *av = (AV *)SvRV (self);
3108 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4198 coro_signal_wake (aTHX_ av, AvFILLp (av));
3109} 4199}
3110 4200
3111void 4201void
3112send (SV *self) 4202send (SV *self)
… …
3120 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4210 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3121} 4211}
3122 4212
3123IV 4213IV
3124awaited (SV *self) 4214awaited (SV *self)
3125 CODE: 4215 CODE:
3126 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4216 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3127 OUTPUT: 4217 OUTPUT:
3128 RETVAL 4218 RETVAL
3129 4219
3130 4220
… …
3135 4225
3136void 4226void
3137_schedule (...) 4227_schedule (...)
3138 CODE: 4228 CODE:
3139{ 4229{
3140 static int incede; 4230 static int incede;
3141 4231
3142 api_cede_notself (aTHX); 4232 api_cede_notself (aTHX);
3143 4233
3144 ++incede; 4234 ++incede;
3145 while (coro_nready >= incede && api_cede (aTHX)) 4235 while (coro_nready >= incede && api_cede (aTHX))
… …
3161 4251
3162void 4252void
3163_register (char *target, char *proto, SV *req) 4253_register (char *target, char *proto, SV *req)
3164 CODE: 4254 CODE:
3165{ 4255{
3166 HV *st; 4256 SV *req_cv = s_get_cv_croak (req);
3167 GV *gvp;
3168 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
3169 /* newXSproto doesn't return the CV on 5.8 */ 4257 /* newXSproto doesn't return the CV on 5.8 */
3170 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4258 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3171 sv_setpv ((SV *)slf_cv, proto); 4259 sv_setpv ((SV *)slf_cv, proto);
3172 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4260 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3173} 4261}
3174 4262
4263MODULE = Coro::State PACKAGE = Coro::Select
4264
4265void
4266patch_pp_sselect ()
4267 CODE:
4268 if (!coro_old_pp_sselect)
4269 {
4270 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4271 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4272 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4273 }
4274
4275void
4276unpatch_pp_sselect ()
4277 CODE:
4278 if (coro_old_pp_sselect)
4279 {
4280 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4281 coro_old_pp_sselect = 0;
4282 }
4283
4284MODULE = Coro::State PACKAGE = Coro::Util
4285
4286void
4287_exit (int code)
4288 CODE:
4289 _exit (code);
4290
4291NV
4292time ()
4293 CODE:
4294 RETVAL = nvtime (aTHX);
4295 OUTPUT:
4296 RETVAL
4297
4298NV
4299gettimeofday ()
4300 PPCODE:
4301{
4302 UV tv [2];
4303 u2time (aTHX_ tv);
4304 EXTEND (SP, 2);
4305 PUSHs (sv_2mortal (newSVuv (tv [0])));
4306 PUSHs (sv_2mortal (newSVuv (tv [1])));
4307}
4308

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