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Comparing Coro/Coro/State.xs (file contents):
Revision 1.333 by root, Thu Nov 27 12:39:00 2008 UTC vs.
Revision 1.461 by root, Fri Jun 17 16:29:50 2016 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#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
13#include <stdio.h> 23#include <stdio.h>
14#include <errno.h> 24#include <errno.h>
15#include <assert.h> 25#include <assert.h>
16 26
17#ifdef WIN32 27#ifndef SvREFCNT_dec_NN
28 #define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
29#endif
30
31#ifndef SvREFCNT_inc_NN
32 #define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
33#endif
34
35#ifndef SVs_PADSTALE
36# define SVs_PADSTALE 0
37#endif
38
39#ifdef PadARRAY
40# define NEWPADAPI 1
41# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
42#else
43typedef AV PADNAMELIST;
44# if !PERL_VERSION_ATLEAST(5,8,0)
45typedef AV PADLIST;
46typedef AV PAD;
47# endif
48# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
49# define PadlistMAX(pl) AvFILLp (pl)
50# define PadlistNAMES(pl) (*PadlistARRAY (pl))
51# define PadARRAY AvARRAY
52# define PadMAX AvFILLp
53# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
54#endif
55#ifndef PadnamelistREFCNT
56# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
57#endif
58#ifndef PadnamelistREFCNT_dec
59# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
60#endif
61
62/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
63/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
64#if PERL_VERSION_ATLEAST(5,19,0)
65# define SVt_BIND SVt_IV
66#endif
67
68#if defined(_WIN32)
69# undef HAS_GETTIMEOFDAY
18# undef setjmp 70# undef setjmp
19# undef longjmp 71# undef longjmp
20# undef _exit 72# undef _exit
21# define setjmp _setjmp /* deep magic */ 73# define setjmp _setjmp /* deep magic */
22#else 74#else
23# include <inttypes.h> /* most portable stdint.h */ 75# include <inttypes.h> /* most portable stdint.h */
24#endif 76#endif
25 77
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 */ 78/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 79static int cctx_max_idle = 4;
55 80
56#define PERL_VERSION_ATLEAST(a,b,c) \ 81#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 82# define HAS_SCOPESTACK_NAME 1
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
109
110/* 5.8.7 */
111#ifndef SvRV_set
112# define SvRV_set(s,v) SvRV(s) = (v)
113#endif
114
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD
117#endif
118
119#ifndef CORO_STACKGUARD
120# define CORO_STACKGUARD 0
121#endif 83#endif
122 84
123/* prefer perl internal functions over our own? */ 85/* prefer perl internal functions over our own? */
124#ifndef CORO_PREFER_PERL_FUNCTIONS 86#ifndef CORO_PREFER_PERL_FUNCTIONS
125# define CORO_PREFER_PERL_FUNCTIONS 0 87# define CORO_PREFER_PERL_FUNCTIONS 0
… …
135# define STACKLEVEL ((void *)&stacklevel) 97# define STACKLEVEL ((void *)&stacklevel)
136#endif 98#endif
137 99
138#define IN_DESTRUCT PL_dirty 100#define IN_DESTRUCT PL_dirty
139 101
140#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr),(value))
143# define INLINE static inline
144#else
145# define attribute(x)
146# define expect(expr,value) (expr)
147# define INLINE static
148#endif
149
150#define expect_false(expr) expect ((expr) != 0, 0)
151#define expect_true(expr) expect ((expr) != 0, 1)
152
153#define NOINLINE attribute ((noinline))
154
155#include "CoroAPI.h" 102#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */ 103#define GCoroAPI (&coroapi) /* very sneaky */
157 104
158#ifdef USE_ITHREADS 105#ifdef USE_ITHREADS
159# if CORO_PTHREAD 106# if CORO_PTHREAD
160static void *coro_thx; 107static void *coro_thx;
161# endif 108# endif
162#endif 109#endif
163 110
111#ifdef __linux
112# include <time.h> /* for timespec */
113# include <syscall.h> /* for SYS_* */
114# ifdef SYS_clock_gettime
115# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
116# define CORO_CLOCK_MONOTONIC 1
117# define CORO_CLOCK_THREAD_CPUTIME_ID 3
118# endif
119#endif
120
164static double (*nvtime)(); /* so why doesn't it take void? */ 121static double (*nvtime)(); /* so why doesn't it take void? */
122static void (*u2time)(pTHX_ UV ret[2]);
165 123
166/* we hijack an hopefully unused CV flag for our purposes */ 124/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 125#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 126static OP *pp_slf (pTHX);
127static void slf_destroy (pTHX_ struct coro *coro);
169 128
170static U32 cctx_gen; 129static U32 cctx_gen;
171static size_t cctx_stacksize = CORO_STACKSIZE; 130static size_t cctx_stacksize = CORO_STACKSIZE;
172static struct CoroAPI coroapi; 131static struct CoroAPI coroapi;
173static AV *main_mainstack; /* used to differentiate between $main and others */ 132static AV *main_mainstack; /* used to differentiate between $main and others */
… …
181 140
182static GV *irsgv; /* $/ */ 141static GV *irsgv; /* $/ */
183static GV *stdoutgv; /* *STDOUT */ 142static GV *stdoutgv; /* *STDOUT */
184static SV *rv_diehook; 143static SV *rv_diehook;
185static SV *rv_warnhook; 144static SV *rv_warnhook;
186static HV *hv_sig; /* %SIG */
187 145
188/* async_pool helper stuff */ 146/* async_pool helper stuff */
189static SV *sv_pool_rss; 147static SV *sv_pool_rss;
190static SV *sv_pool_size; 148static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */ 149static SV *sv_async_pool_idle; /* description string */
192static AV *av_async_pool; /* idle pool */ 150static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */ 151static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler; 152static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
196 153
197/* Coro::AnyEvent */ 154/* Coro::AnyEvent */
198static SV *sv_activity; 155static SV *sv_activity;
199 156
157/* enable processtime/realtime profiling */
158static char enable_times;
159typedef U32 coro_ts[2];
160static coro_ts time_real, time_cpu;
161static char times_valid;
162
200static struct coro_cctx *cctx_first; 163static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 164static int cctx_count, cctx_idle;
202 165
203enum { 166enum
167{
204 CC_MAPPED = 0x01, 168 CC_MAPPED = 0x01,
205 CC_NOREUSE = 0x02, /* throw this away after tracing */ 169 CC_NOREUSE = 0x02, /* throw this away after tracing */
206 CC_TRACE = 0x04, 170 CC_TRACE = 0x04,
207 CC_TRACE_SUB = 0x08, /* trace sub calls */ 171 CC_TRACE_SUB = 0x08, /* trace sub calls */
208 CC_TRACE_LINE = 0x10, /* trace each statement */ 172 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
213typedef struct coro_cctx 177typedef struct coro_cctx
214{ 178{
215 struct coro_cctx *next; 179 struct coro_cctx *next;
216 180
217 /* the stack */ 181 /* the stack */
218 void *sptr; 182 struct coro_stack stack;
219 size_t ssize;
220 183
221 /* cpu state */ 184 /* cpu state */
222 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 185 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
186#ifndef NDEBUG
223 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 187 JMPENV *idle_te; /* same as idle_sp, but for top_env */
188#endif
224 JMPENV *top_env; 189 JMPENV *top_env;
225 coro_context cctx; 190 coro_context cctx;
226 191
227 U32 gen; 192 U32 gen;
228#if CORO_USE_VALGRIND 193#if CORO_USE_VALGRIND
229 int valgrind_id; 194 int valgrind_id;
230#endif 195#endif
231 unsigned char flags; 196 unsigned char flags;
232} coro_cctx; 197} coro_cctx;
233 198
234coro_cctx *cctx_current; /* the currently running cctx */ 199static coro_cctx *cctx_current; /* the currently running cctx */
235 200
236/*****************************************************************************/ 201/*****************************************************************************/
237 202
203static MGVTBL coro_state_vtbl;
204
238enum { 205enum
206{
239 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
240 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
241 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 210 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
211 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
212 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
243}; 213};
244 214
245/* the structure where most of the perl state is stored, overlaid on the cxstack */ 215/* the structure where most of the perl state is stored, overlaid on the cxstack */
246typedef struct 216typedef struct
247{ 217{
248 SV *defsv;
249 AV *defav;
250 SV *errsv;
251 SV *irsgv;
252 HV *hinthv;
253#define VAR(name,type) type name; 218 #define VARx(name,expr,type) type name;
254# include "state.h" 219 #include "state.h"
255#undef VAR
256} perl_slots; 220} perl_slots;
257 221
222/* how many context stack entries do we need for perl_slots */
258#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 223#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
259 224
260/* this is a structure representing a perl-level coroutine */ 225/* this is a structure representing a perl-level coroutine */
261struct coro { 226struct coro
227{
262 /* the C coroutine allocated to this perl coroutine, if any */ 228 /* the C coroutine allocated to this perl coroutine, if any */
263 coro_cctx *cctx; 229 coro_cctx *cctx;
230
231 /* ready queue */
232 struct coro *next_ready;
264 233
265 /* state data */ 234 /* state data */
266 struct CoroSLF slf_frame; /* saved slf frame */ 235 struct CoroSLF slf_frame; /* saved slf frame */
267 AV *mainstack; 236 AV *mainstack;
268 perl_slots *slot; /* basically the saved sp */ 237 perl_slots *slot; /* basically the saved sp */
269 238
270 CV *startcv; /* the CV to execute */ 239 CV *startcv; /* the CV to execute */
271 AV *args; /* data associated with this coroutine (initial args) */ 240 AV *args; /* data associated with this coroutine (initial args) */
272 int refcnt; /* coroutines are refcounted, yes */
273 int flags; /* CF_ flags */ 241 int flags; /* CF_ flags */
274 HV *hv; /* the perl hash associated with this coro, if any */ 242 HV *hv; /* the perl hash associated with this coro, if any */
275 void (*on_destroy)(pTHX_ struct coro *coro);
276 243
277 /* statistics */ 244 /* statistics */
278 int usecount; /* number of transfers to this coro */ 245 int usecount; /* number of transfers to this coro */
279 246
280 /* coro process data */ 247 /* coro process data */
281 int prio; 248 int prio;
282 SV *except; /* exception to be thrown */ 249 SV *except; /* exception to be thrown */
283 SV *rouse_cb; 250 SV *rouse_cb; /* last rouse callback */
251 AV *on_destroy; /* callbacks or coros to notify on destroy */
252 AV *status; /* the exit status list */
284 253
285 /* async_pool */ 254 /* async_pool */
286 SV *saved_deffh; 255 SV *saved_deffh;
287 SV *invoke_cb; 256 SV *invoke_cb;
288 AV *invoke_av; 257 AV *invoke_av;
289 258
259 /* on_enter/on_leave */
260 AV *on_enter; AV *on_enter_xs;
261 AV *on_leave; AV *on_leave_xs;
262
263 /* swap_sv */
264 AV *swap_sv;
265
266 /* times */
267 coro_ts t_cpu, t_real;
268
290 /* linked list */ 269 /* linked list */
291 struct coro *next, *prev; 270 struct coro *next, *prev;
292}; 271};
293 272
294typedef struct coro *Coro__State; 273typedef struct coro *Coro__State;
295typedef struct coro *Coro__State_or_hashref; 274typedef struct coro *Coro__State_or_hashref;
296 275
297/* the following variables are effectively part of the perl context */ 276/* the following variables are effectively part of the perl context */
298/* and get copied between struct coro and these variables */ 277/* and get copied between struct coro and these variables */
299/* the mainr easonw e don't support windows process emulation */ 278/* the main reason we don't support windows process emulation */
300static struct CoroSLF slf_frame; /* the current slf frame */ 279static struct CoroSLF slf_frame; /* the current slf frame */
301 280
302/** Coro ********************************************************************/ 281/** Coro ********************************************************************/
303 282
304#define PRIO_MAX 3 283#define CORO_PRIO_MAX 3
305#define PRIO_HIGH 1 284#define CORO_PRIO_HIGH 1
306#define PRIO_NORMAL 0 285#define CORO_PRIO_NORMAL 0
307#define PRIO_LOW -1 286#define CORO_PRIO_LOW -1
308#define PRIO_IDLE -3 287#define CORO_PRIO_IDLE -3
309#define PRIO_MIN -4 288#define CORO_PRIO_MIN -4
310 289
311/* for Coro.pm */ 290/* for Coro.pm */
312static SV *coro_current; 291static SV *coro_current;
313static SV *coro_readyhook; 292static SV *coro_readyhook;
314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 293static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315static CV *cv_coro_run, *cv_coro_terminate; 294static CV *cv_coro_run;
316static struct coro *coro_first; 295static struct coro *coro_first;
317#define coro_nready coroapi.nready 296#define coro_nready coroapi.nready
318 297
298/** JIT *********************************************************************/
299
300#if CORO_JIT
301 /* APPLE doesn't have mmap though */
302 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
303 #ifndef CORO_JIT_TYPE
304 #if ECB_AMD64 && CORO_JIT_UNIXY
305 #define CORO_JIT_TYPE "amd64-unix"
306 #elif __i386 && CORO_JIT_UNIXY
307 #define CORO_JIT_TYPE "x86-unix"
308 #endif
309 #endif
310#endif
311
312#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
313 #undef CORO_JIT
314#endif
315
316#if CORO_JIT
317 typedef void (*load_save_perl_slots_type)(perl_slots *);
318 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
319#endif
320
321/** Coro::Select ************************************************************/
322
323static OP *(*coro_old_pp_sselect) (pTHX);
324static SV *coro_select_select;
325
326/* horrible hack, but if it works... */
327static OP *
328coro_pp_sselect (pTHX)
329{
330 dSP;
331 PUSHMARK (SP - 4); /* fake argument list */
332 XPUSHs (coro_select_select);
333 PUTBACK;
334
335 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
336 PL_op->op_flags |= OPf_STACKED;
337 PL_op->op_private = 0;
338 return PL_ppaddr [OP_ENTERSUB](aTHX);
339}
340
341/** time stuff **************************************************************/
342
343#ifdef HAS_GETTIMEOFDAY
344
345ecb_inline void
346coro_u2time (pTHX_ UV ret[2])
347{
348 struct timeval tv;
349 gettimeofday (&tv, 0);
350
351 ret [0] = tv.tv_sec;
352 ret [1] = tv.tv_usec;
353}
354
355ecb_inline double
356coro_nvtime (void)
357{
358 struct timeval tv;
359 gettimeofday (&tv, 0);
360
361 return tv.tv_sec + tv.tv_usec * 1e-6;
362}
363
364ecb_inline void
365time_init (pTHX)
366{
367 nvtime = coro_nvtime;
368 u2time = coro_u2time;
369}
370
371#else
372
373ecb_inline void
374time_init (pTHX)
375{
376 SV **svp;
377
378 require_pv ("Time/HiRes.pm");
379
380 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
381
382 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
383 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
384
385 nvtime = INT2PTR (double (*)(), SvIV (*svp));
386
387 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
388 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
389}
390
391#endif
392
319/** lowlevel stuff **********************************************************/ 393/** lowlevel stuff **********************************************************/
320 394
321static SV * 395static SV * ecb_noinline
322coro_get_sv (pTHX_ const char *name, int create) 396coro_get_sv (pTHX_ const char *name, int create)
323{ 397{
324#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
325 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 399 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
326 get_sv (name, create); 400 get_sv (name, create);
327#endif 401#endif
328 return get_sv (name, create); 402 return get_sv (name, create);
329} 403}
330 404
331static AV * 405static AV * ecb_noinline
332coro_get_av (pTHX_ const char *name, int create) 406coro_get_av (pTHX_ const char *name, int create)
333{ 407{
334#if PERL_VERSION_ATLEAST (5,10,0) 408#if PERL_VERSION_ATLEAST (5,10,0)
335 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 409 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
336 get_av (name, create); 410 get_av (name, create);
337#endif 411#endif
338 return get_av (name, create); 412 return get_av (name, create);
339} 413}
340 414
341static HV * 415static HV * ecb_noinline
342coro_get_hv (pTHX_ const char *name, int create) 416coro_get_hv (pTHX_ const char *name, int create)
343{ 417{
344#if PERL_VERSION_ATLEAST (5,10,0) 418#if PERL_VERSION_ATLEAST (5,10,0)
345 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 419 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
346 get_hv (name, create); 420 get_hv (name, create);
347#endif 421#endif
348 return get_hv (name, create); 422 return get_hv (name, create);
349} 423}
350 424
351/* may croak */ 425ecb_inline void
352INLINE CV * 426coro_times_update (void)
353coro_sv_2cv (pTHX_ SV *sv)
354{ 427{
355 HV *st; 428#ifdef coro_clock_gettime
356 GV *gvp; 429 struct timespec ts;
357 return sv_2cv (sv, &st, &gvp, 0); 430
431 ts.tv_sec = ts.tv_nsec = 0;
432 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
433 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
434
435 ts.tv_sec = ts.tv_nsec = 0;
436 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
437 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
438#else
439 dTHX;
440 UV tv[2];
441
442 u2time (aTHX_ tv);
443 time_real [0] = tv [0];
444 time_real [1] = tv [1] * 1000;
445#endif
446}
447
448ecb_inline void
449coro_times_add (struct coro *c)
450{
451 c->t_real [1] += time_real [1];
452 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
453 c->t_real [0] += time_real [0];
454
455 c->t_cpu [1] += time_cpu [1];
456 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
457 c->t_cpu [0] += time_cpu [0];
458}
459
460ecb_inline void
461coro_times_sub (struct coro *c)
462{
463 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
464 c->t_real [1] -= time_real [1];
465 c->t_real [0] -= time_real [0];
466
467 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
468 c->t_cpu [1] -= time_cpu [1];
469 c->t_cpu [0] -= time_cpu [0];
358} 470}
359 471
360/*****************************************************************************/ 472/*****************************************************************************/
361/* magic glue */ 473/* magic glue */
362 474
363#define CORO_MAGIC_type_cv 26 475#define CORO_MAGIC_type_cv 26
364#define CORO_MAGIC_type_state PERL_MAGIC_ext 476#define CORO_MAGIC_type_state PERL_MAGIC_ext
365 477
366#define CORO_MAGIC_NN(sv, type) \ 478#define CORO_MAGIC_NN(sv, type) \
367 (expect_true (SvMAGIC (sv)->mg_type == type) \ 479 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
368 ? SvMAGIC (sv) \ 480 ? SvMAGIC (sv) \
369 : mg_find (sv, type)) 481 : mg_find (sv, type))
370 482
371#define CORO_MAGIC(sv, type) \ 483#define CORO_MAGIC(sv, type) \
372 (expect_true (SvMAGIC (sv)) \ 484 (ecb_expect_true (SvMAGIC (sv)) \
373 ? CORO_MAGIC_NN (sv, type) \ 485 ? CORO_MAGIC_NN (sv, type) \
374 : 0) 486 : 0)
375 487
376#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 488#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
377#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 489#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
378 490
379INLINE struct coro * 491ecb_inline MAGIC *
380SvSTATE_ (pTHX_ SV *coro) 492SvSTATEhv_p (pTHX_ SV *coro)
381{ 493{
382 HV *stash;
383 MAGIC *mg; 494 MAGIC *mg;
384 495
496 if (ecb_expect_true (
497 SvTYPE (coro) == SVt_PVHV
498 && (mg = CORO_MAGIC_state (coro))
499 && mg->mg_virtual == &coro_state_vtbl
500 ))
501 return mg;
502
503 return 0;
504}
505
506ecb_inline struct coro *
507SvSTATE_ (pTHX_ SV *coro_sv)
508{
509 MAGIC *mg;
510
385 if (SvROK (coro)) 511 if (SvROK (coro_sv))
386 coro = SvRV (coro); 512 coro_sv = SvRV (coro_sv);
387 513
388 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 514 mg = SvSTATEhv_p (aTHX_ coro_sv);
515 if (!mg)
389 croak ("Coro::State object required"); 516 croak ("Coro::State object required");
390 517
391 stash = SvSTASH (coro);
392 if (expect_false (stash != coro_stash && stash != coro_state_stash))
393 {
394 /* very slow, but rare, check */
395 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
396 croak ("Coro::State object required");
397 }
398
399 mg = CORO_MAGIC_state (coro);
400 return (struct coro *)mg->mg_ptr; 518 return (struct coro *)mg->mg_ptr;
401} 519}
402 520
403#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 521#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
404 522
… …
407#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 525#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
408 526
409/*****************************************************************************/ 527/*****************************************************************************/
410/* padlist management and caching */ 528/* padlist management and caching */
411 529
412static AV * 530ecb_inline PADLIST *
413coro_derive_padlist (pTHX_ CV *cv) 531coro_derive_padlist (pTHX_ CV *cv)
414{ 532{
415 AV *padlist = CvPADLIST (cv); 533 PADLIST *padlist = CvPADLIST (cv);
416 AV *newpadlist, *newpad; 534 PADLIST *newpadlist;
535 PADNAMELIST *padnames;
536 PAD *newpad;
537 PADOFFSET off = PadlistMAX (padlist) + 1;
417 538
418 newpadlist = newAV (); 539#if NEWPADAPI
540
541 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
542 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
543 while (!PadlistARRAY (padlist)[off - 1])
544 --off;
545
546 Perl_pad_push (aTHX_ padlist, off);
547
548 newpad = PadlistARRAY (padlist)[off];
549 PadlistARRAY (padlist)[off] = 0;
550
551#else
552
553#if PERL_VERSION_ATLEAST (5,10,0)
554 Perl_pad_push (aTHX_ padlist, off);
555#else
556 Perl_pad_push (aTHX_ padlist, off, 1);
557#endif
558
559 newpad = PadlistARRAY (padlist)[off];
560 PadlistMAX (padlist) = off - 1;
561
562#endif
563
564 newPADLIST (newpadlist);
565#if !PERL_VERSION_ATLEAST(5,15,3)
566 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
419 AvREAL_off (newpadlist); 567 AvREAL_off (newpadlist);
420#if PERL_VERSION_ATLEAST (5,10,0)
421 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
422#else
423 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
424#endif 568#endif
425 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
426 --AvFILLp (padlist);
427 569
428 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 570 /* Already extended to 2 elements by newPADLIST. */
429 av_store (newpadlist, 1, (SV *)newpad); 571 PadlistMAX (newpadlist) = 1;
572
573 padnames = PadlistNAMES (padlist);
574 ++PadnamelistREFCNT (padnames);
575 PadlistNAMES (newpadlist) = padnames;
576
577 PadlistARRAY (newpadlist)[1] = newpad;
430 578
431 return newpadlist; 579 return newpadlist;
432} 580}
433 581
434static void 582ecb_inline void
435free_padlist (pTHX_ AV *padlist) 583free_padlist (pTHX_ PADLIST *padlist)
436{ 584{
437 /* may be during global destruction */ 585 /* may be during global destruction */
438 if (!IN_DESTRUCT) 586 if (!IN_DESTRUCT)
439 { 587 {
440 I32 i = AvFILLp (padlist); 588 I32 i = PadlistMAX (padlist);
441 589
442 while (i > 0) /* special-case index 0 */ 590 while (i > 0) /* special-case index 0 */
443 { 591 {
444 /* we try to be extra-careful here */ 592 /* we try to be extra-careful here */
445 AV *av = (AV *)AvARRAY (padlist)[i--]; 593 PAD *pad = PadlistARRAY (padlist)[i--];
446 I32 j = AvFILLp (av);
447 594
595 if (pad)
596 {
597 I32 j = PadMAX (pad);
598
448 while (j >= 0) 599 while (j >= 0)
449 SvREFCNT_dec (AvARRAY (av)[j--]); 600 SvREFCNT_dec (PadARRAY (pad)[j--]);
450 601
451 AvFILLp (av) = -1; 602 PadMAX (pad) = -1;
452 SvREFCNT_dec (av); 603 SvREFCNT_dec (pad);
604 }
453 } 605 }
454 606
455 SvREFCNT_dec (AvARRAY (padlist)[0]); 607 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
456 608
609#if NEWPADAPI
610 Safefree (PadlistARRAY (padlist));
611 Safefree (padlist);
612#else
457 AvFILLp (padlist) = -1; 613 AvFILLp (padlist) = -1;
614 AvREAL_off (padlist);
458 SvREFCNT_dec ((SV*)padlist); 615 SvREFCNT_dec ((SV*)padlist);
616#endif
459 } 617 }
460} 618}
461 619
462static int 620static int
463coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 621coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464{ 622{
465 AV *padlist; 623 PADLIST *padlist;
466 AV *av = (AV *)mg->mg_obj; 624 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
625 size_t len = *(size_t *)mg->mg_ptr;
467 626
468 /* casting is fun. */ 627 /* perl manages to free our internal AV and _then_ call us */
469 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 628 if (IN_DESTRUCT)
629 return 0;
630
631 while (len--)
470 free_padlist (aTHX_ padlist); 632 free_padlist (aTHX_ padlists[len]);
471
472 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
473 633
474 return 0; 634 return 0;
475} 635}
476 636
477static MGVTBL coro_cv_vtbl = { 637static MGVTBL coro_cv_vtbl = {
478 0, 0, 0, 0, 638 0, 0, 0, 0,
479 coro_cv_free 639 coro_cv_free
480}; 640};
481 641
482/* the next two functions merely cache the padlists */ 642/* the next two functions merely cache the padlists */
483static void 643ecb_inline void
484get_padlist (pTHX_ CV *cv) 644get_padlist (pTHX_ CV *cv)
485{ 645{
486 MAGIC *mg = CORO_MAGIC_cv (cv); 646 MAGIC *mg = CORO_MAGIC_cv (cv);
487 AV *av; 647 size_t *lenp;
488 648
489 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 649 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
490 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 650 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
491 else 651 else
492 { 652 {
493#if CORO_PREFER_PERL_FUNCTIONS 653#if CORO_PREFER_PERL_FUNCTIONS
494 /* this is probably cleaner? but also slower! */ 654 /* this is probably cleaner? but also slower! */
495 /* in practise, it seems to be less stable */ 655 /* in practise, it seems to be less stable */
… …
501 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 661 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
502#endif 662#endif
503 } 663 }
504} 664}
505 665
506static void 666ecb_inline void
507put_padlist (pTHX_ CV *cv) 667put_padlist (pTHX_ CV *cv)
508{ 668{
509 MAGIC *mg = CORO_MAGIC_cv (cv); 669 MAGIC *mg = CORO_MAGIC_cv (cv);
510 AV *av;
511 670
512 if (expect_false (!mg)) 671 if (ecb_expect_false (!mg))
672 {
513 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 673 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
674 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
675 mg->mg_len = 1; /* so mg_free frees mg_ptr */
676 }
677 else
678 Renew (mg->mg_ptr,
679 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
680 char);
514 681
515 av = (AV *)mg->mg_obj; 682 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
516
517 if (expect_false (AvFILLp (av) >= AvMAX (av)))
518 av_extend (av, AvFILLp (av) + 1);
519
520 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
521} 683}
522 684
523/** load & save, init *******************************************************/ 685/** load & save, init *******************************************************/
686
687ecb_inline void
688swap_sv (SV *a, SV *b)
689{
690 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
691 SV tmp;
692
693 /* swap sv_any */
694 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
695
696 /* swap sv_flags */
697 SvFLAGS (&tmp) = SvFLAGS (a);
698 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
699 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
700
701#if PERL_VERSION_ATLEAST (5,10,0)
702 /* perl 5.10 and later complicates this _quite_ a bit, but it also
703 * is much faster, so no quarrels here. alternatively, we could
704 * sv_upgrade to avoid this.
705 */
706 {
707 /* swap sv_u */
708 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
709
710 /* if SvANY points to the head, we need to adjust the pointers,
711 * as the pointer for a still points to b, and maybe vice versa.
712 */
713 U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
714 #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
715 svany_in_head_set |= 1 << SVt_NV;
716 #endif
717
718 #define svany_in_head(type) (svany_in_head_set & (1 << (type)))
719
720 if (svany_in_head (SvTYPE (a)))
721 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
722
723 if (svany_in_head (SvTYPE (b)))
724 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
725 }
726#endif
727}
728
729/* swap sv heads, at least logically */
730static void
731swap_svs_enter (pTHX_ Coro__State c)
732{
733 int i;
734
735 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
736 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
737}
738
739static void
740swap_svs_leave (pTHX_ Coro__State c)
741{
742 int i;
743
744 for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2)
745 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
746}
747
748#define SWAP_SVS_ENTER(coro) \
749 if (ecb_expect_false ((coro)->swap_sv)) \
750 swap_svs_enter (aTHX_ (coro))
751
752#define SWAP_SVS_LEAVE(coro) \
753 if (ecb_expect_false ((coro)->swap_sv)) \
754 swap_svs_leave (aTHX_ (coro))
755
756static void
757on_enterleave_call (pTHX_ SV *cb);
524 758
525static void 759static void
526load_perl (pTHX_ Coro__State c) 760load_perl (pTHX_ Coro__State c)
527{ 761{
528 perl_slots *slot = c->slot; 762 perl_slots *slot = c->slot;
529 c->slot = 0; 763 c->slot = 0;
530 764
531 PL_mainstack = c->mainstack; 765 PL_mainstack = c->mainstack;
532 766
533 GvSV (PL_defgv) = slot->defsv; 767#if CORO_JIT
534 GvAV (PL_defgv) = slot->defav; 768 load_perl_slots (slot);
535 GvSV (PL_errgv) = slot->errsv; 769#else
536 GvSV (irsgv) = slot->irsgv;
537 GvHV (PL_hintgv) = slot->hinthv;
538
539 #define VAR(name,type) PL_ ## name = slot->name; 770 #define VARx(name,expr,type) expr = slot->name;
540 # include "state.h" 771 #include "state.h"
541 #undef VAR 772#endif
542 773
543 { 774 {
544 dSP; 775 dSP;
545 776
546 CV *cv; 777 CV *cv;
547 778
548 /* now do the ugly restore mess */ 779 /* now do the ugly restore mess */
549 while (expect_true (cv = (CV *)POPs)) 780 while (ecb_expect_true (cv = (CV *)POPs))
550 { 781 {
551 put_padlist (aTHX_ cv); /* mark this padlist as available */ 782 put_padlist (aTHX_ cv); /* mark this padlist as available */
552 CvDEPTH (cv) = PTR2IV (POPs); 783 CvDEPTH (cv) = PTR2IV (POPs);
553 CvPADLIST (cv) = (AV *)POPs; 784 CvPADLIST (cv) = (PADLIST *)POPs;
554 } 785 }
555 786
556 PUTBACK; 787 PUTBACK;
557 } 788 }
558 789
559 slf_frame = c->slf_frame; 790 slf_frame = c->slf_frame;
560 CORO_THROW = c->except; 791 CORO_THROW = c->except;
792
793 if (ecb_expect_false (enable_times))
794 {
795 if (ecb_expect_false (!times_valid))
796 coro_times_update ();
797
798 coro_times_sub (c);
799 }
800
801 if (ecb_expect_false (c->on_enter))
802 {
803 int i;
804
805 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
806 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
807 }
808
809 if (ecb_expect_false (c->on_enter_xs))
810 {
811 int i;
812
813 for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
814 ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
815 }
816
817 SWAP_SVS_ENTER (c);
561} 818}
562 819
563static void 820static void
564save_perl (pTHX_ Coro__State c) 821save_perl (pTHX_ Coro__State c)
565{ 822{
823 SWAP_SVS_LEAVE (c);
824
825 if (ecb_expect_false (c->on_leave_xs))
826 {
827 int i;
828
829 for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
830 ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
831 }
832
833 if (ecb_expect_false (c->on_leave))
834 {
835 int i;
836
837 for (i = AvFILLp (c->on_leave); i >= 0; --i)
838 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
839 }
840
841 times_valid = 0;
842
843 if (ecb_expect_false (enable_times))
844 {
845 coro_times_update (); times_valid = 1;
846 coro_times_add (c);
847 }
848
566 c->except = CORO_THROW; 849 c->except = CORO_THROW;
567 c->slf_frame = slf_frame; 850 c->slf_frame = slf_frame;
568 851
569 { 852 {
570 dSP; 853 dSP;
… …
579 862
580 XPUSHs (Nullsv); 863 XPUSHs (Nullsv);
581 /* this loop was inspired by pp_caller */ 864 /* this loop was inspired by pp_caller */
582 for (;;) 865 for (;;)
583 { 866 {
584 while (expect_true (cxix >= 0)) 867 while (ecb_expect_true (cxix >= 0))
585 { 868 {
586 PERL_CONTEXT *cx = &ccstk[cxix--]; 869 PERL_CONTEXT *cx = &ccstk[cxix--];
587 870
588 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 871 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
589 { 872 {
590 CV *cv = cx->blk_sub.cv; 873 CV *cv = cx->blk_sub.cv;
591 874
592 if (expect_true (CvDEPTH (cv))) 875 if (ecb_expect_true (CvDEPTH (cv)))
593 { 876 {
594 EXTEND (SP, 3); 877 EXTEND (SP, 3);
595 PUSHs ((SV *)CvPADLIST (cv)); 878 PUSHs ((SV *)CvPADLIST (cv));
596 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 879 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
597 PUSHs ((SV *)cv); 880 PUSHs ((SV *)cv);
… …
600 get_padlist (aTHX_ cv); 883 get_padlist (aTHX_ cv);
601 } 884 }
602 } 885 }
603 } 886 }
604 887
605 if (expect_true (top_si->si_type == PERLSI_MAIN)) 888 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
606 break; 889 break;
607 890
608 top_si = top_si->si_prev; 891 top_si = top_si->si_prev;
609 ccstk = top_si->si_cxstack; 892 ccstk = top_si->si_cxstack;
610 cxix = top_si->si_cxix; 893 cxix = top_si->si_cxix;
… …
612 895
613 PUTBACK; 896 PUTBACK;
614 } 897 }
615 898
616 /* allocate some space on the context stack for our purposes */ 899 /* allocate some space on the context stack for our purposes */
617 /* we manually unroll here, as usually 2 slots is enough */ 900 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
618 if (SLOT_COUNT >= 1) CXINC;
619 if (SLOT_COUNT >= 2) CXINC;
620 if (SLOT_COUNT >= 3) CXINC;
621 { 901 {
622 int i; 902 unsigned int i;
903
623 for (i = 3; i < SLOT_COUNT; ++i) 904 for (i = 0; i < SLOT_COUNT; ++i)
624 CXINC; 905 CXINC;
625 } 906
626 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 907 cxstack_ix -= SLOT_COUNT; /* undo allocation */
908 }
627 909
628 c->mainstack = PL_mainstack; 910 c->mainstack = PL_mainstack;
629 911
630 { 912 {
631 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 913 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
632 914
633 slot->defav = GvAV (PL_defgv); 915#if CORO_JIT
634 slot->defsv = DEFSV; 916 save_perl_slots (slot);
635 slot->errsv = ERRSV; 917#else
636 slot->irsgv = GvSV (irsgv);
637 slot->hinthv = GvHV (PL_hintgv);
638
639 #define VAR(name,type) slot->name = PL_ ## name; 918 #define VARx(name,expr,type) slot->name = expr;
640 # include "state.h" 919 #include "state.h"
641 #undef VAR 920#endif
642 } 921 }
643} 922}
644 923
645/* 924/*
646 * allocate various perl stacks. This is almost an exact copy 925 * allocate various perl stacks. This is almost an exact copy
… …
652# define coro_init_stacks(thx) init_stacks () 931# define coro_init_stacks(thx) init_stacks ()
653#else 932#else
654static void 933static void
655coro_init_stacks (pTHX) 934coro_init_stacks (pTHX)
656{ 935{
657 PL_curstackinfo = new_stackinfo(32, 8); 936 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
658 PL_curstackinfo->si_type = PERLSI_MAIN; 937 PL_curstackinfo->si_type = PERLSI_MAIN;
659 PL_curstack = PL_curstackinfo->si_stack; 938 PL_curstack = PL_curstackinfo->si_stack;
660 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 939 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
661 940
662 PL_stack_base = AvARRAY(PL_curstack); 941 PL_stack_base = AvARRAY(PL_curstack);
… …
677#endif 956#endif
678 957
679 New(54,PL_scopestack,8,I32); 958 New(54,PL_scopestack,8,I32);
680 PL_scopestack_ix = 0; 959 PL_scopestack_ix = 0;
681 PL_scopestack_max = 8; 960 PL_scopestack_max = 8;
961#if HAS_SCOPESTACK_NAME
962 New(54,PL_scopestack_name,8,const char*);
963#endif
682 964
683 New(54,PL_savestack,24,ANY); 965 New(54,PL_savestack,24,ANY);
684 PL_savestack_ix = 0; 966 PL_savestack_ix = 0;
685 PL_savestack_max = 24; 967 PL_savestack_max = 24;
686 968
… …
714 } 996 }
715 997
716 Safefree (PL_tmps_stack); 998 Safefree (PL_tmps_stack);
717 Safefree (PL_markstack); 999 Safefree (PL_markstack);
718 Safefree (PL_scopestack); 1000 Safefree (PL_scopestack);
1001#if HAS_SCOPESTACK_NAME
1002 Safefree (PL_scopestack_name);
1003#endif
719 Safefree (PL_savestack); 1004 Safefree (PL_savestack);
720#if !PERL_VERSION_ATLEAST (5,10,0) 1005#if !PERL_VERSION_ATLEAST (5,10,0)
721 Safefree (PL_retstack); 1006 Safefree (PL_retstack);
722#endif 1007#endif
723} 1008}
… …
769#endif 1054#endif
770 1055
771/* 1056/*
772 * This overrides the default magic get method of %SIG elements. 1057 * This overrides the default magic get method of %SIG elements.
773 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1058 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
774 * and instead of tryign to save and restore the hash elements, we just provide 1059 * and instead of trying to save and restore the hash elements (extremely slow),
775 * readback here. 1060 * we just provide our own readback here.
776 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
777 * not expecting this to actually change the hook. This is a potential problem
778 * when a schedule happens then, but we ignore this.
779 */ 1061 */
780static int 1062static int ecb_cold
781coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1063coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782{ 1064{
783 const char *s = MgPV_nolen_const (mg); 1065 const char *s = MgPV_nolen_const (mg);
784 1066
785 if (*s == '_') 1067 if (*s == '_')
786 { 1068 {
787 SV **svp = 0; 1069 SV **svp = 0;
788 1070
789 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1071 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
790 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1072 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
791 1073
792 if (svp) 1074 if (svp)
793 { 1075 {
794 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1076 SV *ssv;
1077
1078 if (!*svp)
1079 ssv = &PL_sv_undef;
1080 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1081 ssv = sv_2mortal (newRV_inc (*svp));
1082 else
1083 ssv = *svp;
1084
1085 sv_setsv (sv, ssv);
795 return 0; 1086 return 0;
796 } 1087 }
797 } 1088 }
798 1089
799 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1090 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
800} 1091}
801 1092
802static int 1093static int ecb_cold
803coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1094coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
804{ 1095{
805 const char *s = MgPV_nolen_const (mg); 1096 const char *s = MgPV_nolen_const (mg);
806 1097
807 if (*s == '_') 1098 if (*s == '_')
… …
821 } 1112 }
822 1113
823 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1114 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
824} 1115}
825 1116
826static int 1117static int ecb_cold
827coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1118coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
828{ 1119{
829 const char *s = MgPV_nolen_const (mg); 1120 const char *s = MgPV_nolen_const (mg);
830 1121
831 if (*s == '_') 1122 if (*s == '_')
… …
836 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1127 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837 1128
838 if (svp) 1129 if (svp)
839 { 1130 {
840 SV *old = *svp; 1131 SV *old = *svp;
841 *svp = newSVsv (sv); 1132 *svp = SvOK (sv) ? newSVsv (sv) : 0;
842 SvREFCNT_dec (old); 1133 SvREFCNT_dec (old);
843 return 0; 1134 return 0;
844 } 1135 }
845 } 1136 }
846 1137
… …
864slf_check_repeat (pTHX_ struct CoroSLF *frame) 1155slf_check_repeat (pTHX_ struct CoroSLF *frame)
865{ 1156{
866 return 1; 1157 return 1;
867} 1158}
868 1159
869static UNOP coro_setup_op; 1160static UNOP init_perl_op;
870 1161
871static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1162ecb_noinline static void /* noinline to keep it out of the transfer fast path */
872coro_setup (pTHX_ struct coro *coro) 1163init_perl (pTHX_ struct coro *coro)
873{ 1164{
874 /* 1165 /*
875 * emulate part of the perl startup here. 1166 * emulate part of the perl startup here.
876 */ 1167 */
877 coro_init_stacks (aTHX); 1168 coro_init_stacks (aTHX);
… …
884 PL_comppad_name_fill = 0; 1175 PL_comppad_name_fill = 0;
885 PL_comppad_name_floor = 0; 1176 PL_comppad_name_floor = 0;
886 PL_curpm = 0; 1177 PL_curpm = 0;
887 PL_curpad = 0; 1178 PL_curpad = 0;
888 PL_localizing = 0; 1179 PL_localizing = 0;
889 PL_dirty = 0;
890 PL_restartop = 0; 1180 PL_restartop = 0;
891#if PERL_VERSION_ATLEAST (5,10,0) 1181#if PERL_VERSION_ATLEAST (5,10,0)
892 PL_parser = 0; 1182 PL_parser = 0;
893#endif 1183#endif
894 PL_hints = 0; 1184 PL_hints = 0;
895 1185
896 /* recreate the die/warn hooks */ 1186 /* recreate the die/warn hooks */
897 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1187 PL_diehook = SvREFCNT_inc (rv_diehook);
898 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1188 PL_warnhook = SvREFCNT_inc (rv_warnhook);
899 1189
900 GvSV (PL_defgv) = newSV (0); 1190 GvSV (PL_defgv) = newSV (0);
901 GvAV (PL_defgv) = coro->args; coro->args = 0; 1191 GvAV (PL_defgv) = coro->args; coro->args = 0;
902 GvSV (PL_errgv) = newSV (0); 1192 GvSV (PL_errgv) = newSV (0);
903 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1193 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
904 GvHV (PL_hintgv) = 0; 1194 GvHV (PL_hintgv) = newHV ();
1195#if PERL_VERSION_ATLEAST (5,10,0)
1196 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1197#endif
905 PL_rs = newSVsv (GvSV (irsgv)); 1198 PL_rs = newSVsv (GvSV (irsgv));
906 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1199 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
907 1200
908 { 1201 {
909 dSP; 1202 dSP;
… …
924 /* this newly created coroutine might be run on an existing cctx which most 1217 /* this newly created coroutine might be run on an existing cctx which most
925 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1218 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
926 */ 1219 */
927 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1220 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
928 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1221 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1222 slf_frame.destroy = 0;
929 1223
930 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1224 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
931 coro_setup_op.op_next = PL_op; 1225 init_perl_op.op_next = PL_op;
932 coro_setup_op.op_type = OP_ENTERSUB; 1226 init_perl_op.op_type = OP_ENTERSUB;
933 coro_setup_op.op_ppaddr = pp_slf; 1227 init_perl_op.op_ppaddr = pp_slf;
934 /* no flags etc. required, as an init function won't be called */ 1228 /* no flags etc. required, as an init function won't be called */
935 1229
936 PL_op = (OP *)&coro_setup_op; 1230 PL_op = (OP *)&init_perl_op;
937 1231
938 /* copy throw, in case it was set before coro_setup */ 1232 /* copy throw, in case it was set before init_perl */
939 CORO_THROW = coro->except; 1233 CORO_THROW = coro->except;
940}
941 1234
1235 SWAP_SVS_ENTER (coro);
1236
1237 if (ecb_expect_false (enable_times))
1238 {
1239 coro_times_update ();
1240 coro_times_sub (coro);
1241 }
1242}
1243
942static void 1244static void
943coro_destruct (pTHX_ struct coro *coro) 1245coro_unwind_stacks (pTHX)
944{ 1246{
945 if (!IN_DESTRUCT) 1247 if (!IN_DESTRUCT)
946 { 1248 {
947 /* restore all saved variables and stuff */ 1249 /* restore all saved variables and stuff */
948 LEAVE_SCOPE (0); 1250 LEAVE_SCOPE (0);
… …
956 POPSTACK_TO (PL_mainstack); 1258 POPSTACK_TO (PL_mainstack);
957 1259
958 /* unwind main stack */ 1260 /* unwind main stack */
959 dounwind (-1); 1261 dounwind (-1);
960 } 1262 }
1263}
961 1264
962 SvREFCNT_dec (GvSV (PL_defgv)); 1265static void
963 SvREFCNT_dec (GvAV (PL_defgv)); 1266destroy_perl (pTHX_ struct coro *coro)
964 SvREFCNT_dec (GvSV (PL_errgv)); 1267{
965 SvREFCNT_dec (PL_defoutgv); 1268 SV *svf [9];
966 SvREFCNT_dec (PL_rs);
967 SvREFCNT_dec (GvSV (irsgv));
968 SvREFCNT_dec (GvHV (PL_hintgv));
969 1269
970 SvREFCNT_dec (PL_diehook);
971 SvREFCNT_dec (PL_warnhook);
972 1270 {
1271 SV *old_current = SvRV (coro_current);
1272 struct coro *current = SvSTATE (old_current);
1273
1274 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1275
1276 save_perl (aTHX_ current);
1277
1278 /* this will cause transfer_check to croak on block*/
1279 SvRV_set (coro_current, (SV *)coro->hv);
1280
1281 load_perl (aTHX_ coro);
1282
1283 /* restore swapped sv's */
1284 SWAP_SVS_LEAVE (coro);
1285
1286 coro_unwind_stacks (aTHX);
1287
1288 coro_destruct_stacks (aTHX);
1289
1290 /* now save some sv's to be free'd later */
1291 svf [0] = GvSV (PL_defgv);
1292 svf [1] = (SV *)GvAV (PL_defgv);
1293 svf [2] = GvSV (PL_errgv);
1294 svf [3] = (SV *)PL_defoutgv;
1295 svf [4] = PL_rs;
1296 svf [5] = GvSV (irsgv);
1297 svf [6] = (SV *)GvHV (PL_hintgv);
1298 svf [7] = PL_diehook;
1299 svf [8] = PL_warnhook;
1300 assert (9 == sizeof (svf) / sizeof (*svf));
1301
1302 SvRV_set (coro_current, old_current);
1303
1304 load_perl (aTHX_ current);
1305 }
1306
1307 {
1308 unsigned int i;
1309
1310 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1311 SvREFCNT_dec (svf [i]);
1312
973 SvREFCNT_dec (coro->saved_deffh); 1313 SvREFCNT_dec (coro->saved_deffh);
974 SvREFCNT_dec (coro->rouse_cb); 1314 SvREFCNT_dec (coro->rouse_cb);
975 SvREFCNT_dec (coro->invoke_cb); 1315 SvREFCNT_dec (coro->invoke_cb);
976 SvREFCNT_dec (coro->invoke_av); 1316 SvREFCNT_dec (coro->invoke_av);
977 1317 SvREFCNT_dec (coro->on_enter_xs);
978 coro_destruct_stacks (aTHX); 1318 SvREFCNT_dec (coro->on_leave_xs);
1319 }
979} 1320}
980 1321
981INLINE void 1322ecb_inline void
982free_coro_mortal (pTHX) 1323free_coro_mortal (pTHX)
983{ 1324{
984 if (expect_true (coro_mortal)) 1325 if (ecb_expect_true (coro_mortal))
985 { 1326 {
986 SvREFCNT_dec (coro_mortal); 1327 SvREFCNT_dec ((SV *)coro_mortal);
987 coro_mortal = 0; 1328 coro_mortal = 0;
988 } 1329 }
989} 1330}
990 1331
991static int 1332static int
… …
1045 1386
1046 if (PL_curcop != &PL_compiling) 1387 if (PL_curcop != &PL_compiling)
1047 { 1388 {
1048 SV **cb; 1389 SV **cb;
1049 1390
1050 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) 1391 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1051 { 1392 {
1052 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1393 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1053 1394
1054 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1395 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1055 { 1396 {
… …
1124 1465
1125 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1466 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1126} 1467}
1127 1468
1128/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1469/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1129static void NOINLINE 1470static void ecb_noinline
1130cctx_prepare (pTHX) 1471cctx_prepare (pTHX)
1131{ 1472{
1132 PL_top_env = &PL_start_env; 1473 PL_top_env = &PL_start_env;
1133 1474
1134 if (cctx_current->flags & CC_TRACE) 1475 if (cctx_current->flags & CC_TRACE)
… …
1145 slf_frame.prepare = slf_prepare_set_stacklevel; 1486 slf_frame.prepare = slf_prepare_set_stacklevel;
1146 slf_frame.check = slf_check_set_stacklevel; 1487 slf_frame.check = slf_check_set_stacklevel;
1147} 1488}
1148 1489
1149/* the tail of transfer: execute stuff we can only do after a transfer */ 1490/* the tail of transfer: execute stuff we can only do after a transfer */
1150INLINE void 1491ecb_inline void
1151transfer_tail (pTHX) 1492transfer_tail (pTHX)
1152{ 1493{
1153 free_coro_mortal (aTHX); 1494 free_coro_mortal (aTHX);
1495}
1496
1497/* try to exit the same way perl's main function would do */
1498/* we do not bother resetting the environment or other things *7
1499/* that are not, uhm, essential */
1500/* this obviously also doesn't work when perl is embedded */
1501static void ecb_noinline ecb_cold
1502perlish_exit (pTHX)
1503{
1504 int exitstatus = perl_destruct (PL_curinterp);
1505 perl_free (PL_curinterp);
1506 exit (exitstatus);
1154} 1507}
1155 1508
1156/* 1509/*
1157 * this is a _very_ stripped down perl interpreter ;) 1510 * this is a _very_ stripped down perl interpreter ;)
1158 */ 1511 */
… …
1180 /* somebody or something will hit me for both perl_run and PL_restartop */ 1533 /* somebody or something will hit me for both perl_run and PL_restartop */
1181 PL_restartop = PL_op; 1534 PL_restartop = PL_op;
1182 perl_run (PL_curinterp); 1535 perl_run (PL_curinterp);
1183 /* 1536 /*
1184 * Unfortunately, there is no way to get at the return values of the 1537 * Unfortunately, there is no way to get at the return values of the
1185 * coro body here, as perl_run destroys these 1538 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1539 * runtime errors here, as this is just a random interpreter, not a thread.
1186 */ 1540 */
1187 1541
1188 /* 1542 /*
1189 * If perl-run returns we assume exit() was being called or the coro 1543 * If perl-run returns we assume exit() was being called or the coro
1190 * fell off the end, which seems to be the only valid (non-bug) 1544 * fell off the end, which seems to be the only valid (non-bug)
1191 * reason for perl_run to return. We try to exit by jumping to the 1545 * reason for perl_run to return. We try to mimic whatever perl is normally
1192 * bootstrap-time "top" top_env, as we cannot restore the "main" 1546 * doing in that case. YMMV.
1193 * coroutine as Coro has no such concept.
1194 * This actually isn't valid with the pthread backend, but OSes requiring
1195 * that backend are too broken to do it in a standards-compliant way.
1196 */ 1547 */
1197 PL_top_env = main_top_env; 1548 perlish_exit (aTHX);
1198 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1199 } 1549 }
1200} 1550}
1201 1551
1202static coro_cctx * 1552static coro_cctx *
1203cctx_new () 1553cctx_new (void)
1204{ 1554{
1205 coro_cctx *cctx; 1555 coro_cctx *cctx;
1206 1556
1207 ++cctx_count; 1557 ++cctx_count;
1208 New (0, cctx, 1, coro_cctx); 1558 New (0, cctx, 1, coro_cctx);
… …
1214 return cctx; 1564 return cctx;
1215} 1565}
1216 1566
1217/* create a new cctx only suitable as source */ 1567/* create a new cctx only suitable as source */
1218static coro_cctx * 1568static coro_cctx *
1219cctx_new_empty () 1569cctx_new_empty (void)
1220{ 1570{
1221 coro_cctx *cctx = cctx_new (); 1571 coro_cctx *cctx = cctx_new ();
1222 1572
1223 cctx->sptr = 0; 1573 cctx->stack.sptr = 0;
1224 coro_create (&cctx->cctx, 0, 0, 0, 0); 1574 coro_create (&cctx->cctx, 0, 0, 0, 0);
1225 1575
1226 return cctx; 1576 return cctx;
1227} 1577}
1228 1578
1229/* create a new cctx suitable as destination/running a perl interpreter */ 1579/* create a new cctx suitable as destination/running a perl interpreter */
1230static coro_cctx * 1580static coro_cctx *
1231cctx_new_run () 1581cctx_new_run (void)
1232{ 1582{
1233 coro_cctx *cctx = cctx_new (); 1583 coro_cctx *cctx = cctx_new ();
1234 void *stack_start;
1235 size_t stack_size;
1236 1584
1237#if HAVE_MMAP 1585 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1238 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1239 /* mmap supposedly does allocate-on-write for us */
1240 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1241
1242 if (cctx->sptr != (void *)-1)
1243 {
1244 #if CORO_STACKGUARD
1245 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1246 #endif
1247 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1248 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1249 cctx->flags |= CC_MAPPED;
1250 } 1586 {
1251 else
1252#endif
1253 {
1254 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1255 New (0, cctx->sptr, cctx_stacksize, long);
1256
1257 if (!cctx->sptr)
1258 {
1259 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1587 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1260 _exit (EXIT_FAILURE); 1588 _exit (EXIT_FAILURE);
1261 }
1262
1263 stack_start = cctx->sptr;
1264 stack_size = cctx->ssize;
1265 } 1589 }
1266 1590
1267 #if CORO_USE_VALGRIND
1268 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1269 #endif
1270
1271 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1591 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1272 1592
1273 return cctx; 1593 return cctx;
1274} 1594}
1275 1595
1276static void 1596static void
1277cctx_destroy (coro_cctx *cctx) 1597cctx_destroy (coro_cctx *cctx)
1278{ 1598{
1279 if (!cctx) 1599 if (!cctx)
1280 return; 1600 return;
1281 1601
1282 assert (cctx != cctx_current);//D temporary 1602 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1283 1603
1284 --cctx_count; 1604 --cctx_count;
1285 coro_destroy (&cctx->cctx); 1605 coro_destroy (&cctx->cctx);
1286 1606
1287 /* coro_transfer creates new, empty cctx's */ 1607 coro_stack_free (&cctx->stack);
1288 if (cctx->sptr)
1289 {
1290 #if CORO_USE_VALGRIND
1291 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1292 #endif
1293
1294#if HAVE_MMAP
1295 if (cctx->flags & CC_MAPPED)
1296 munmap (cctx->sptr, cctx->ssize);
1297 else
1298#endif
1299 Safefree (cctx->sptr);
1300 }
1301 1608
1302 Safefree (cctx); 1609 Safefree (cctx);
1303} 1610}
1304 1611
1305/* wether this cctx should be destructed */ 1612/* wether this cctx should be destructed */
1306#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1613#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1307 1614
1308static coro_cctx * 1615static coro_cctx *
1309cctx_get (pTHX) 1616cctx_get (pTHX)
1310{ 1617{
1311 while (expect_true (cctx_first)) 1618 while (ecb_expect_true (cctx_first))
1312 { 1619 {
1313 coro_cctx *cctx = cctx_first; 1620 coro_cctx *cctx = cctx_first;
1314 cctx_first = cctx->next; 1621 cctx_first = cctx->next;
1315 --cctx_idle; 1622 --cctx_idle;
1316 1623
1317 if (expect_true (!CCTX_EXPIRED (cctx))) 1624 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1318 return cctx; 1625 return cctx;
1319 1626
1320 cctx_destroy (cctx); 1627 cctx_destroy (cctx);
1321 } 1628 }
1322 1629
… …
1324} 1631}
1325 1632
1326static void 1633static void
1327cctx_put (coro_cctx *cctx) 1634cctx_put (coro_cctx *cctx)
1328{ 1635{
1329 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1636 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1330 1637
1331 /* free another cctx if overlimit */ 1638 /* free another cctx if overlimit */
1332 if (expect_false (cctx_idle >= cctx_max_idle)) 1639 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1333 { 1640 {
1334 coro_cctx *first = cctx_first; 1641 coro_cctx *first = cctx_first;
1335 cctx_first = first->next; 1642 cctx_first = first->next;
1336 --cctx_idle; 1643 --cctx_idle;
1337 1644
… …
1348static void 1655static void
1349transfer_check (pTHX_ struct coro *prev, struct coro *next) 1656transfer_check (pTHX_ struct coro *prev, struct coro *next)
1350{ 1657{
1351 /* TODO: throwing up here is considered harmful */ 1658 /* TODO: throwing up here is considered harmful */
1352 1659
1353 if (expect_true (prev != next)) 1660 if (ecb_expect_true (prev != next))
1354 { 1661 {
1355 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1662 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1356 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); 1663 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1357 1664
1358 if (expect_false (next->flags & CF_RUNNING)) 1665 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1359 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1360
1361 if (expect_false (next->flags & CF_DESTROYED))
1362 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1666 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1363 1667
1364#if !PERL_VERSION_ATLEAST (5,10,0) 1668#if !PERL_VERSION_ATLEAST (5,10,0)
1365 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1669 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1366 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1670 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1367#endif 1671#endif
1368 } 1672 }
1369} 1673}
1370 1674
1371/* always use the TRANSFER macro */ 1675/* always use the TRANSFER macro */
1372static void NOINLINE /* noinline so we have a fixed stackframe */ 1676static void ecb_noinline /* noinline so we have a fixed stackframe */
1373transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1677transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1374{ 1678{
1375 dSTACKLEVEL; 1679 dSTACKLEVEL;
1376 1680
1377 /* sometimes transfer is only called to set idle_sp */ 1681 /* sometimes transfer is only called to set idle_sp */
1378 if (expect_false (!prev)) 1682 if (ecb_expect_false (!prev))
1379 { 1683 {
1380 cctx_current->idle_sp = STACKLEVEL; 1684 cctx_current->idle_sp = STACKLEVEL;
1381 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1685 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1382 } 1686 }
1383 else if (expect_true (prev != next)) 1687 else if (ecb_expect_true (prev != next))
1384 { 1688 {
1385 coro_cctx *cctx_prev; 1689 coro_cctx *cctx_prev;
1386 1690
1387 if (expect_false (prev->flags & CF_NEW)) 1691 if (ecb_expect_false (prev->flags & CF_NEW))
1388 { 1692 {
1389 /* create a new empty/source context */ 1693 /* create a new empty/source context */
1390 prev->flags &= ~CF_NEW; 1694 prev->flags &= ~CF_NEW;
1391 prev->flags |= CF_RUNNING; 1695 prev->flags |= CF_RUNNING;
1392 } 1696 }
… …
1395 next->flags |= CF_RUNNING; 1699 next->flags |= CF_RUNNING;
1396 1700
1397 /* first get rid of the old state */ 1701 /* first get rid of the old state */
1398 save_perl (aTHX_ prev); 1702 save_perl (aTHX_ prev);
1399 1703
1400 if (expect_false (next->flags & CF_NEW)) 1704 if (ecb_expect_false (next->flags & CF_NEW))
1401 { 1705 {
1402 /* need to start coroutine */ 1706 /* need to start coroutine */
1403 next->flags &= ~CF_NEW; 1707 next->flags &= ~CF_NEW;
1404 /* setup coroutine call */ 1708 /* setup coroutine call */
1405 coro_setup (aTHX_ next); 1709 init_perl (aTHX_ next);
1406 } 1710 }
1407 else 1711 else
1408 load_perl (aTHX_ next); 1712 load_perl (aTHX_ next);
1409 1713
1410 assert (!prev->cctx);//D temporary
1411
1412 /* possibly untie and reuse the cctx */ 1714 /* possibly untie and reuse the cctx */
1413 if (expect_true ( 1715 if (ecb_expect_true (
1414 cctx_current->idle_sp == STACKLEVEL 1716 cctx_current->idle_sp == STACKLEVEL
1415 && !(cctx_current->flags & CC_TRACE) 1717 && !(cctx_current->flags & CC_TRACE)
1416 && !force_cctx 1718 && !force_cctx
1417 )) 1719 ))
1418 { 1720 {
1419 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1721 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1420 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1722 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1421 1723
1422 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1724 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1423 /* without this the next cctx_get might destroy the running cctx while still in use */ 1725 /* without this the next cctx_get might destroy the running cctx while still in use */
1424 if (expect_false (CCTX_EXPIRED (cctx_current))) 1726 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1425 if (expect_true (!next->cctx)) 1727 if (ecb_expect_true (!next->cctx))
1426 next->cctx = cctx_get (aTHX); 1728 next->cctx = cctx_get (aTHX);
1427 1729
1428 cctx_put (cctx_current); 1730 cctx_put (cctx_current);
1429 } 1731 }
1430 else 1732 else
1431 prev->cctx = cctx_current; 1733 prev->cctx = cctx_current;
1432 1734
1433 ++next->usecount; 1735 ++next->usecount;
1434 1736
1435 cctx_prev = cctx_current; 1737 cctx_prev = cctx_current;
1436 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1738 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1437 1739
1438 next->cctx = 0; 1740 next->cctx = 0;
1439 1741
1440 if (expect_false (cctx_prev != cctx_current)) 1742 if (ecb_expect_false (cctx_prev != cctx_current))
1441 { 1743 {
1442 cctx_prev->top_env = PL_top_env; 1744 cctx_prev->top_env = PL_top_env;
1443 PL_top_env = cctx_current->top_env; 1745 PL_top_env = cctx_current->top_env;
1444 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1746 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1445 } 1747 }
… …
1451#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1753#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1452#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1754#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1453 1755
1454/** high level stuff ********************************************************/ 1756/** high level stuff ********************************************************/
1455 1757
1758/* this function is actually Coro, not Coro::State, but we call it from here */
1759/* because it is convenient - but it hasn't been declared yet for that reason */
1456static int 1760static void
1761coro_call_on_destroy (pTHX_ struct coro *coro);
1762
1763static void
1457coro_state_destroy (pTHX_ struct coro *coro) 1764coro_state_destroy (pTHX_ struct coro *coro)
1458{ 1765{
1459 if (coro->flags & CF_DESTROYED) 1766 if (coro->flags & CF_ZOMBIE)
1460 return 0; 1767 return;
1461 1768
1462 if (coro->on_destroy)
1463 coro->on_destroy (aTHX_ coro); 1769 slf_destroy (aTHX_ coro);
1464 1770
1465 coro->flags |= CF_DESTROYED; 1771 coro->flags |= CF_ZOMBIE;
1466 1772
1467 if (coro->flags & CF_READY) 1773 if (coro->flags & CF_READY)
1468 { 1774 {
1469 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1775 /* reduce nready, as destroying a ready coro effectively unreadies it */
1470 /* alternative: look through all ready queues and remove the coro */ 1776 /* alternative: look through all ready queues and remove the coro */
1471 --coro_nready; 1777 --coro_nready;
1472 } 1778 }
1473 else 1779 else
1474 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1780 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1475 1781
1476 if (coro->mainstack && coro->mainstack != main_mainstack) 1782 if (coro->next) coro->next->prev = coro->prev;
1477 { 1783 if (coro->prev) coro->prev->next = coro->next;
1478 struct coro temp; 1784 if (coro == coro_first) coro_first = coro->next;
1479 1785
1480 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1786 if (coro->mainstack
1481 1787 && coro->mainstack != main_mainstack
1482 save_perl (aTHX_ &temp); 1788 && coro->slot
1789 && !PL_dirty)
1483 load_perl (aTHX_ coro); 1790 destroy_perl (aTHX_ coro);
1484
1485 coro_destruct (aTHX_ coro);
1486
1487 load_perl (aTHX_ &temp);
1488
1489 coro->slot = 0;
1490 }
1491 1791
1492 cctx_destroy (coro->cctx); 1792 cctx_destroy (coro->cctx);
1493 SvREFCNT_dec (coro->startcv); 1793 SvREFCNT_dec (coro->startcv);
1494 SvREFCNT_dec (coro->args); 1794 SvREFCNT_dec (coro->args);
1795 SvREFCNT_dec (coro->swap_sv);
1495 SvREFCNT_dec (CORO_THROW); 1796 SvREFCNT_dec (CORO_THROW);
1496 1797
1497 if (coro->next) coro->next->prev = coro->prev; 1798 coro_call_on_destroy (aTHX_ coro);
1498 if (coro->prev) coro->prev->next = coro->next;
1499 if (coro == coro_first) coro_first = coro->next;
1500 1799
1501 return 1; 1800 /* more destruction mayhem in coro_state_free */
1502} 1801}
1503 1802
1504static int 1803static int
1505coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1804coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1506{ 1805{
1507 struct coro *coro = (struct coro *)mg->mg_ptr; 1806 struct coro *coro = (struct coro *)mg->mg_ptr;
1508 mg->mg_ptr = 0; 1807 mg->mg_ptr = 0;
1509 1808
1510 coro->hv = 0;
1511
1512 if (--coro->refcnt < 0)
1513 {
1514 coro_state_destroy (aTHX_ coro); 1809 coro_state_destroy (aTHX_ coro);
1810 SvREFCNT_dec (coro->on_destroy);
1811 SvREFCNT_dec (coro->status);
1812
1515 Safefree (coro); 1813 Safefree (coro);
1516 }
1517 1814
1518 return 0; 1815 return 0;
1519} 1816}
1520 1817
1521static int 1818static int ecb_cold
1522coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1819coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1523{ 1820{
1524 struct coro *coro = (struct coro *)mg->mg_ptr; 1821 /* called when perl clones the current process the slow way (windows process emulation) */
1525 1822 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1526 ++coro->refcnt; 1823 mg->mg_ptr = 0;
1824 mg->mg_virtual = 0;
1527 1825
1528 return 0; 1826 return 0;
1529} 1827}
1530 1828
1531static MGVTBL coro_state_vtbl = { 1829static MGVTBL coro_state_vtbl = {
… …
1554 1852
1555 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1853 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1556 TRANSFER (ta, 1); 1854 TRANSFER (ta, 1);
1557} 1855}
1558 1856
1559/*****************************************************************************/
1560/* gensub: simple closure generation utility */
1561
1562#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1563
1564/* create a closure from XS, returns a code reference */
1565/* the arg can be accessed via GENSUB_ARG from the callback */
1566/* the callback must use dXSARGS/XSRETURN */
1567static SV *
1568gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1569{
1570 CV *cv = (CV *)newSV (0);
1571
1572 sv_upgrade ((SV *)cv, SVt_PVCV);
1573
1574 CvANON_on (cv);
1575 CvISXSUB_on (cv);
1576 CvXSUB (cv) = xsub;
1577 GENSUB_ARG = arg;
1578
1579 return newRV_noinc ((SV *)cv);
1580}
1581
1582/** Coro ********************************************************************/ 1857/** Coro ********************************************************************/
1583 1858
1584INLINE void 1859ecb_inline void
1585coro_enq (pTHX_ struct coro *coro) 1860coro_enq (pTHX_ struct coro *coro)
1586{ 1861{
1587 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1862 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1588}
1589 1863
1590INLINE SV * 1864 SvREFCNT_inc_NN (coro->hv);
1865
1866 coro->next_ready = 0;
1867 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1868 ready [1] = coro;
1869}
1870
1871ecb_inline struct coro *
1591coro_deq (pTHX) 1872coro_deq (pTHX)
1592{ 1873{
1593 int prio; 1874 int prio;
1594 1875
1595 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1876 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1596 if (AvFILLp (coro_ready [prio]) >= 0) 1877 {
1597 return av_shift (coro_ready [prio]); 1878 struct coro **ready = coro_ready [prio];
1879
1880 if (ready [0])
1881 {
1882 struct coro *coro = ready [0];
1883 ready [0] = coro->next_ready;
1884 return coro;
1885 }
1886 }
1598 1887
1599 return 0; 1888 return 0;
1889}
1890
1891static void
1892invoke_sv_ready_hook_helper (void)
1893{
1894 dTHX;
1895 dSP;
1896
1897 ENTER;
1898 SAVETMPS;
1899
1900 PUSHMARK (SP);
1901 PUTBACK;
1902 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1903
1904 FREETMPS;
1905 LEAVE;
1600} 1906}
1601 1907
1602static int 1908static int
1603api_ready (pTHX_ SV *coro_sv) 1909api_ready (pTHX_ SV *coro_sv)
1604{ 1910{
1605 struct coro *coro;
1606 SV *sv_hook;
1607 void (*xs_hook)(void);
1608
1609 coro = SvSTATE (coro_sv); 1911 struct coro *coro = SvSTATE (coro_sv);
1610 1912
1611 if (coro->flags & CF_READY) 1913 if (coro->flags & CF_READY)
1612 return 0; 1914 return 0;
1613 1915
1614 coro->flags |= CF_READY; 1916 coro->flags |= CF_READY;
1615 1917
1616 sv_hook = coro_nready ? 0 : coro_readyhook;
1617 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1618
1619 coro_enq (aTHX_ coro); 1918 coro_enq (aTHX_ coro);
1620 ++coro_nready;
1621 1919
1622 if (sv_hook) 1920 if (!coro_nready++)
1623 { 1921 if (coroapi.readyhook)
1624 dSP; 1922 coroapi.readyhook ();
1625
1626 ENTER;
1627 SAVETMPS;
1628
1629 PUSHMARK (SP);
1630 PUTBACK;
1631 call_sv (sv_hook, G_VOID | G_DISCARD);
1632
1633 FREETMPS;
1634 LEAVE;
1635 }
1636
1637 if (xs_hook)
1638 xs_hook ();
1639 1923
1640 return 1; 1924 return 1;
1641} 1925}
1642 1926
1643static int 1927static int
… …
1645{ 1929{
1646 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1930 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1647} 1931}
1648 1932
1649/* expects to own a reference to next->hv */ 1933/* expects to own a reference to next->hv */
1650INLINE void 1934ecb_inline void
1651prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1935prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1652{ 1936{
1653 SV *prev_sv = SvRV (coro_current); 1937 SV *prev_sv = SvRV (coro_current);
1654 1938
1655 ta->prev = SvSTATE_hv (prev_sv); 1939 ta->prev = SvSTATE_hv (prev_sv);
… …
1666static void 1950static void
1667prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1951prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1668{ 1952{
1669 for (;;) 1953 for (;;)
1670 { 1954 {
1671 SV *next_sv = coro_deq (aTHX); 1955 struct coro *next = coro_deq (aTHX);
1672 1956
1673 if (expect_true (next_sv)) 1957 if (ecb_expect_true (next))
1674 { 1958 {
1675 struct coro *next = SvSTATE_hv (next_sv);
1676
1677 /* cannot transfer to destroyed coros, skip and look for next */ 1959 /* cannot transfer to destroyed coros, skip and look for next */
1678 if (expect_false (next->flags & CF_DESTROYED)) 1960 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1679 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1961 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1680 else 1962 else
1681 { 1963 {
1682 next->flags &= ~CF_READY; 1964 next->flags &= ~CF_READY;
1683 --coro_nready; 1965 --coro_nready;
1684 1966
… …
1690 { 1972 {
1691 /* nothing to schedule: call the idle handler */ 1973 /* nothing to schedule: call the idle handler */
1692 if (SvROK (sv_idle) 1974 if (SvROK (sv_idle)
1693 && SvOBJECT (SvRV (sv_idle))) 1975 && SvOBJECT (SvRV (sv_idle)))
1694 { 1976 {
1977 if (SvRV (sv_idle) == SvRV (coro_current))
1978 {
1979 require_pv ("Carp");
1980
1981 {
1982 dSP;
1983
1984 ENTER;
1985 SAVETMPS;
1986
1987 PUSHMARK (SP);
1988 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1989 PUTBACK;
1990 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1991
1992 FREETMPS;
1993 LEAVE;
1994 }
1995 }
1996
1695 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1997 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1696 api_ready (aTHX_ SvRV (sv_idle)); 1998 api_ready (aTHX_ SvRV (sv_idle));
1697 --coro_nready; 1999 --coro_nready;
1698 } 2000 }
1699 else 2001 else
1700 { 2002 {
2003 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1701 dSP; 2004 dSP;
1702 2005
1703 ENTER; 2006 ENTER;
1704 SAVETMPS; 2007 SAVETMPS;
1705 2008
… …
1712 } 2015 }
1713 } 2016 }
1714 } 2017 }
1715} 2018}
1716 2019
1717INLINE void 2020ecb_inline void
1718prepare_cede (pTHX_ struct coro_transfer_args *ta) 2021prepare_cede (pTHX_ struct coro_transfer_args *ta)
1719{ 2022{
1720 api_ready (aTHX_ coro_current); 2023 api_ready (aTHX_ coro_current);
1721 prepare_schedule (aTHX_ ta); 2024 prepare_schedule (aTHX_ ta);
1722} 2025}
1723 2026
1724INLINE void 2027ecb_inline void
1725prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2028prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1726{ 2029{
1727 SV *prev = SvRV (coro_current); 2030 SV *prev = SvRV (coro_current);
1728 2031
1729 if (coro_nready) 2032 if (coro_nready)
… …
1759{ 2062{
1760 struct coro_transfer_args ta; 2063 struct coro_transfer_args ta;
1761 2064
1762 prepare_cede (aTHX_ &ta); 2065 prepare_cede (aTHX_ &ta);
1763 2066
1764 if (expect_true (ta.prev != ta.next)) 2067 if (ecb_expect_true (ta.prev != ta.next))
1765 { 2068 {
1766 TRANSFER (ta, 1); 2069 TRANSFER (ta, 1);
1767 return 1; 2070 return 1;
1768 } 2071 }
1769 else 2072 else
… …
1812 coro->slot->runops = RUNOPS_DEFAULT; 2115 coro->slot->runops = RUNOPS_DEFAULT;
1813 } 2116 }
1814} 2117}
1815 2118
1816static void 2119static void
2120coro_push_av (pTHX_ AV *av, I32 gimme_v)
2121{
2122 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2123 {
2124 dSP;
2125
2126 if (gimme_v == G_SCALAR)
2127 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2128 else
2129 {
2130 int i;
2131 EXTEND (SP, AvFILLp (av) + 1);
2132
2133 for (i = 0; i <= AvFILLp (av); ++i)
2134 PUSHs (AvARRAY (av)[i]);
2135 }
2136
2137 PUTBACK;
2138 }
2139}
2140
2141static void
2142coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2143{
2144 if (!coro->on_destroy)
2145 coro->on_destroy = newAV ();
2146
2147 av_push (coro->on_destroy, cb);
2148}
2149
2150static void
2151slf_destroy_join (pTHX_ struct CoroSLF *frame)
2152{
2153 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2154}
2155
2156static int
2157slf_check_join (pTHX_ struct CoroSLF *frame)
2158{
2159 struct coro *coro = (struct coro *)frame->data;
2160
2161 if (!coro->status)
2162 return 1;
2163
2164 frame->destroy = 0;
2165
2166 coro_push_av (aTHX_ coro->status, GIMME_V);
2167
2168 SvREFCNT_dec ((SV *)coro->hv);
2169
2170 return 0;
2171}
2172
2173static void
2174slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2175{
2176 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2177
2178 if (items > 1)
2179 croak ("join called with too many arguments");
2180
2181 if (coro->status)
2182 frame->prepare = prepare_nop;
2183 else
2184 {
2185 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2186 frame->prepare = prepare_schedule;
2187 }
2188
2189 frame->check = slf_check_join;
2190 frame->destroy = slf_destroy_join;
2191 frame->data = (void *)coro;
2192 SvREFCNT_inc (coro->hv);
2193}
2194
2195static void
1817coro_call_on_destroy (pTHX_ struct coro *coro) 2196coro_call_on_destroy (pTHX_ struct coro *coro)
1818{ 2197{
1819 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2198 AV *od = coro->on_destroy;
1820 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1821 2199
1822 if (on_destroyp) 2200 if (!od)
1823 { 2201 return;
1824 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1825 2202
2203 coro->on_destroy = 0;
2204 sv_2mortal ((SV *)od);
2205
1826 while (AvFILLp (on_destroy) >= 0) 2206 while (AvFILLp (od) >= 0)
2207 {
2208 SV *cb = sv_2mortal (av_pop (od));
2209
2210 /* coro hv's (and only hv's at the moment) are supported as well */
2211 if (SvSTATEhv_p (aTHX_ cb))
2212 api_ready (aTHX_ cb);
2213 else
1827 { 2214 {
1828 dSP; /* don't disturb outer sp */ 2215 dSP; /* don't disturb outer sp */
1829 SV *cb = av_pop (on_destroy);
1830
1831 PUSHMARK (SP); 2216 PUSHMARK (SP);
1832 2217
1833 if (statusp) 2218 if (coro->status)
1834 { 2219 {
1835 int i; 2220 PUTBACK;
1836 AV *status = (AV *)SvRV (*statusp); 2221 coro_push_av (aTHX_ coro->status, G_ARRAY);
1837 EXTEND (SP, AvFILLp (status) + 1); 2222 SPAGAIN;
1838
1839 for (i = 0; i <= AvFILLp (status); ++i)
1840 PUSHs (AvARRAY (status)[i]);
1841 } 2223 }
1842 2224
1843 PUTBACK; 2225 PUTBACK;
1844 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2226 call_sv (cb, G_VOID | G_DISCARD);
1845 } 2227 }
1846 } 2228 }
1847} 2229}
1848 2230
1849static void 2231static void
1850slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2232coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1851{ 2233{
2234 AV *av;
2235
2236 if (coro->status)
2237 {
2238 av = coro->status;
2239 av_clear (av);
2240 }
2241 else
2242 av = coro->status = newAV ();
2243
2244 /* items are actually not so common, so optimise for this case */
2245 if (items)
2246 {
1852 int i; 2247 int i;
1853 HV *hv = (HV *)SvRV (coro_current);
1854 AV *av = newAV ();
1855 2248
1856 av_extend (av, items - 1); 2249 av_extend (av, items - 1);
2250
1857 for (i = 0; i < items; ++i) 2251 for (i = 0; i < items; ++i)
1858 av_push (av, SvREFCNT_inc_NN (arg [i])); 2252 av_push (av, SvREFCNT_inc_NN (arg [i]));
2253 }
2254}
1859 2255
1860 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2256static void
1861 2257slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2258{
1862 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2259 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1863 api_ready (aTHX_ sv_manager); 2260 api_ready (aTHX_ sv_manager);
1864 2261
1865 frame->prepare = prepare_schedule; 2262 frame->prepare = prepare_schedule;
1866 frame->check = slf_check_repeat; 2263 frame->check = slf_check_repeat;
2264
2265 /* as a minor optimisation, we could unwind all stacks here */
2266 /* but that puts extra pressure on pp_slf, and is not worth much */
2267 /*coro_unwind_stacks (aTHX);*/
2268}
2269
2270static void
2271slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2272{
2273 HV *coro_hv = (HV *)SvRV (coro_current);
2274
2275 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2276 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2277}
2278
2279static void
2280slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2281{
2282 HV *coro_hv;
2283 struct coro *coro;
2284
2285 if (items <= 0)
2286 croak ("Coro::cancel called without coro object,");
2287
2288 coro = SvSTATE (arg [0]);
2289 coro_hv = coro->hv;
2290
2291 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2292
2293 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2294 {
2295 /* coro currently busy cancelling something, so just notify it */
2296 coro->slf_frame.data = (void *)coro;
2297
2298 frame->prepare = prepare_nop;
2299 frame->check = slf_check_nop;
2300 }
2301 else if (coro_hv == (HV *)SvRV (coro_current))
2302 {
2303 /* cancelling the current coro is allowed, and equals terminate */
2304 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2305 }
2306 else
2307 {
2308 struct coro *self = SvSTATE_current;
2309
2310 if (!self)
2311 croak ("Coro::cancel called outside of thread content,");
2312
2313 /* otherwise we cancel directly, purely for speed reasons
2314 * unfortunately, this requires some magic trickery, as
2315 * somebody else could cancel us, so we have to fight the cancellation.
2316 * this is ugly, and hopefully fully worth the extra speed.
2317 * besides, I can't get the slow-but-safe version working...
2318 */
2319 slf_frame.data = 0;
2320 self->flags |= CF_NOCANCEL;
2321 coro_state_destroy (aTHX_ coro);
2322 self->flags &= ~CF_NOCANCEL;
2323
2324 if (slf_frame.data)
2325 {
2326 /* while we were busy we have been cancelled, so terminate */
2327 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2328 }
2329 else
2330 {
2331 frame->prepare = prepare_nop;
2332 frame->check = slf_check_nop;
2333 }
2334 }
2335}
2336
2337static int
2338slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2339{
2340 frame->prepare = 0;
2341 coro_unwind_stacks (aTHX);
2342
2343 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2344
2345 return 1;
2346}
2347
2348static int
2349safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2350{
2351 if (coro->cctx)
2352 croak ("coro inside C callback, unable to cancel at this time, caught");
2353
2354 if (coro->flags & CF_NEW)
2355 {
2356 coro_set_status (aTHX_ coro, arg, items);
2357 coro_state_destroy (aTHX_ coro);
2358 }
2359 else
2360 {
2361 if (!coro->slf_frame.prepare)
2362 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2363
2364 slf_destroy (aTHX_ coro);
2365
2366 coro_set_status (aTHX_ coro, arg, items);
2367 coro->slf_frame.prepare = prepare_nop;
2368 coro->slf_frame.check = slf_check_safe_cancel;
2369
2370 api_ready (aTHX_ (SV *)coro->hv);
2371 }
2372
2373 return 1;
1867} 2374}
1868 2375
1869/*****************************************************************************/ 2376/*****************************************************************************/
1870/* async pool handler */ 2377/* async pool handler */
1871 2378
… …
1902slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2409slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1903{ 2410{
1904 HV *hv = (HV *)SvRV (coro_current); 2411 HV *hv = (HV *)SvRV (coro_current);
1905 struct coro *coro = SvSTATE_hv ((SV *)hv); 2412 struct coro *coro = SvSTATE_hv ((SV *)hv);
1906 2413
1907 if (expect_true (coro->saved_deffh)) 2414 if (ecb_expect_true (coro->saved_deffh))
1908 { 2415 {
1909 /* subsequent iteration */ 2416 /* subsequent iteration */
1910 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2417 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1911 coro->saved_deffh = 0; 2418 coro->saved_deffh = 0;
1912 2419
1913 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2420 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1914 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2421 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1915 { 2422 {
1916 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2423 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1917 coro->invoke_av = newAV (); 2424 return;
1918
1919 frame->prepare = prepare_nop;
1920 } 2425 }
1921 else 2426 else
1922 { 2427 {
1923 av_clear (GvAV (PL_defgv)); 2428 av_clear (GvAV (PL_defgv));
1924 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2429 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
1925 2430
2431 if (ecb_expect_false (coro->swap_sv))
2432 {
2433 swap_svs_leave (coro);
2434 SvREFCNT_dec_NN (coro->swap_sv);
2435 coro->swap_sv = 0;
2436 }
2437
1926 coro->prio = 0; 2438 coro->prio = 0;
1927 2439
1928 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2440 if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE))
1929 api_trace (aTHX_ coro_current, 0); 2441 api_trace (aTHX_ coro_current, 0);
1930 2442
1931 frame->prepare = prepare_schedule; 2443 frame->prepare = prepare_schedule;
1932 av_push (av_async_pool, SvREFCNT_inc (hv)); 2444 av_push (av_async_pool, SvREFCNT_inc (hv));
1933 } 2445 }
… …
1949 2461
1950static void 2462static void
1951coro_rouse_callback (pTHX_ CV *cv) 2463coro_rouse_callback (pTHX_ CV *cv)
1952{ 2464{
1953 dXSARGS; 2465 dXSARGS;
1954 SV *data = (SV *)GENSUB_ARG; 2466 SV *data = (SV *)S_GENSUB_ARG;
1955 2467
1956 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2468 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1957 { 2469 {
1958 /* first call, set args */ 2470 /* first call, set args */
2471 SV *coro = SvRV (data);
1959 AV *av = newAV (); 2472 AV *av = newAV ();
1960 SV *coro = SvRV (data);
1961 2473
1962 SvRV_set (data, (SV *)av); 2474 SvRV_set (data, (SV *)av);
1963 api_ready (aTHX_ coro);
1964 SvREFCNT_dec (coro);
1965 2475
1966 /* better take a full copy of the arguments */ 2476 /* better take a full copy of the arguments */
1967 while (items--) 2477 while (items--)
1968 av_store (av, items, newSVsv (ST (items))); 2478 av_store (av, items, newSVsv (ST (items)));
2479
2480 api_ready (aTHX_ coro);
2481 SvREFCNT_dec (coro);
1969 } 2482 }
1970 2483
1971 XSRETURN_EMPTY; 2484 XSRETURN_EMPTY;
1972} 2485}
1973 2486
1974static int 2487static int
1975slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2488slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1976{ 2489{
1977 SV *data = (SV *)frame->data; 2490 SV *data = (SV *)frame->data;
1978 2491
1979 if (CORO_THROW) 2492 if (CORO_THROW)
1980 return 0; 2493 return 0;
1981 2494
1982 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2495 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1983 return 1; 2496 return 1;
… …
1990 2503
1991 EXTEND (SP, AvFILLp (av) + 1); 2504 EXTEND (SP, AvFILLp (av) + 1);
1992 for (i = 0; i <= AvFILLp (av); ++i) 2505 for (i = 0; i <= AvFILLp (av); ++i)
1993 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2506 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1994 2507
1995 /* we have stolen the elements, so ste length to zero and free */ 2508 /* we have stolen the elements, so set length to zero and free */
1996 AvFILLp (av) = -1; 2509 AvFILLp (av) = -1;
1997 av_undef (av); 2510 av_undef (av);
1998 2511
1999 PUTBACK; 2512 PUTBACK;
2000 } 2513 }
… …
2019 cb = sv_2mortal (coro->rouse_cb); 2532 cb = sv_2mortal (coro->rouse_cb);
2020 coro->rouse_cb = 0; 2533 coro->rouse_cb = 0;
2021 } 2534 }
2022 2535
2023 if (!SvROK (cb) 2536 if (!SvROK (cb)
2024 || SvTYPE (SvRV (cb)) != SVt_PVCV 2537 || SvTYPE (SvRV (cb)) != SVt_PVCV
2025 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2538 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2026 croak ("Coro::rouse_wait called with illegal callback argument,"); 2539 croak ("Coro::rouse_wait called with illegal callback argument,");
2027 2540
2028 { 2541 {
2029 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2542 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2030 SV *data = (SV *)GENSUB_ARG; 2543 SV *data = (SV *)S_GENSUB_ARG;
2031 2544
2032 frame->data = (void *)data; 2545 frame->data = (void *)data;
2033 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2546 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2034 frame->check = slf_check_rouse_wait; 2547 frame->check = slf_check_rouse_wait;
2035 } 2548 }
… …
2039coro_new_rouse_cb (pTHX) 2552coro_new_rouse_cb (pTHX)
2040{ 2553{
2041 HV *hv = (HV *)SvRV (coro_current); 2554 HV *hv = (HV *)SvRV (coro_current);
2042 struct coro *coro = SvSTATE_hv (hv); 2555 struct coro *coro = SvSTATE_hv (hv);
2043 SV *data = newRV_inc ((SV *)hv); 2556 SV *data = newRV_inc ((SV *)hv);
2044 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2557 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2045 2558
2046 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2559 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2047 SvREFCNT_dec (data); /* magicext increases the refcount */ 2560 SvREFCNT_dec (data); /* magicext increases the refcount */
2048 2561
2049 SvREFCNT_dec (coro->rouse_cb); 2562 SvREFCNT_dec (coro->rouse_cb);
… …
2146static void 2659static void
2147slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2660slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2148{ 2661{
2149 frame->prepare = prepare_cede_notself; 2662 frame->prepare = prepare_cede_notself;
2150 frame->check = slf_check_nop; 2663 frame->check = slf_check_nop;
2664}
2665
2666/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2667static void
2668slf_destroy (pTHX_ struct coro *coro)
2669{
2670 struct CoroSLF frame = coro->slf_frame;
2671
2672 /*
2673 * The on_destroy below most likely is from an SLF call.
2674 * Since by definition the SLF call will not finish when we destroy
2675 * the coro, we will have to force-finish it here, otherwise
2676 * cleanup functions cannot call SLF functions.
2677 */
2678 coro->slf_frame.prepare = 0;
2679
2680 /* this callback is reserved for slf functions needing to do cleanup */
2681 if (frame.destroy && frame.prepare && !PL_dirty)
2682 frame.destroy (aTHX_ &frame);
2151} 2683}
2152 2684
2153/* 2685/*
2154 * these not obviously related functions are all rolled into one 2686 * these not obviously related functions are all rolled into one
2155 * function to increase chances that they all will call transfer with the same 2687 * function to increase chances that they all will call transfer with the same
… …
2162 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2694 I32 checkmark; /* mark SP to see how many elements check has pushed */
2163 2695
2164 /* set up the slf frame, unless it has already been set-up */ 2696 /* set up the slf frame, unless it has already been set-up */
2165 /* the latter happens when a new coro has been started */ 2697 /* the latter happens when a new coro has been started */
2166 /* or when a new cctx was attached to an existing coroutine */ 2698 /* or when a new cctx was attached to an existing coroutine */
2167 if (expect_true (!slf_frame.prepare)) 2699 if (ecb_expect_true (!slf_frame.prepare))
2168 { 2700 {
2169 /* first iteration */ 2701 /* first iteration */
2170 dSP; 2702 dSP;
2171 SV **arg = PL_stack_base + TOPMARK + 1; 2703 SV **arg = PL_stack_base + TOPMARK + 1;
2172 int items = SP - arg; /* args without function object */ 2704 int items = SP - arg; /* args without function object */
… …
2213 while (slf_frame.check (aTHX_ &slf_frame)); 2745 while (slf_frame.check (aTHX_ &slf_frame));
2214 2746
2215 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2747 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2216 2748
2217 /* exception handling */ 2749 /* exception handling */
2218 if (expect_false (CORO_THROW)) 2750 if (ecb_expect_false (CORO_THROW))
2219 { 2751 {
2220 SV *exception = sv_2mortal (CORO_THROW); 2752 SV *exception = sv_2mortal (CORO_THROW);
2221 2753
2222 CORO_THROW = 0; 2754 CORO_THROW = 0;
2223 sv_setsv (ERRSV, exception); 2755 sv_setsv (ERRSV, exception);
2224 croak (0); 2756 croak (0);
2225 } 2757 }
2226 2758
2227 /* return value handling - mostly like entersub */ 2759 /* return value handling - mostly like entersub */
2228 /* make sure we put something on the stack in scalar context */ 2760 /* make sure we put something on the stack in scalar context */
2229 if (GIMME_V == G_SCALAR) 2761 if (GIMME_V == G_SCALAR
2762 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2230 { 2763 {
2231 dSP; 2764 dSP;
2232 SV **bot = PL_stack_base + checkmark; 2765 SV **bot = PL_stack_base + checkmark;
2233 2766
2234 if (sp == bot) /* too few, push undef */ 2767 if (sp == bot) /* too few, push undef */
2235 bot [1] = &PL_sv_undef; 2768 bot [1] = &PL_sv_undef;
2236 else if (sp != bot + 1) /* too many, take last one */ 2769 else /* too many, take last one */
2237 bot [1] = *sp; 2770 bot [1] = *sp;
2238 2771
2239 SP = bot + 1; 2772 SP = bot + 1;
2240 2773
2241 PUTBACK; 2774 PUTBACK;
… …
2274 if (PL_op->op_flags & OPf_STACKED) 2807 if (PL_op->op_flags & OPf_STACKED)
2275 { 2808 {
2276 if (items > slf_arga) 2809 if (items > slf_arga)
2277 { 2810 {
2278 slf_arga = items; 2811 slf_arga = items;
2279 free (slf_argv); 2812 Safefree (slf_argv);
2280 slf_argv = malloc (slf_arga * sizeof (SV *)); 2813 New (0, slf_argv, slf_arga, SV *);
2281 } 2814 }
2282 2815
2283 slf_argc = items; 2816 slf_argc = items;
2284 2817
2285 for (i = 0; i < items; ++i) 2818 for (i = 0; i < items; ++i)
… …
2290 2823
2291 PL_op->op_ppaddr = pp_slf; 2824 PL_op->op_ppaddr = pp_slf;
2292 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2825 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2293 2826
2294 PL_op = (OP *)&slf_restore; 2827 PL_op = (OP *)&slf_restore;
2828}
2829
2830/*****************************************************************************/
2831/* dynamic wind */
2832
2833static void
2834on_enterleave_call (pTHX_ SV *cb)
2835{
2836 dSP;
2837
2838 PUSHSTACK;
2839
2840 PUSHMARK (SP);
2841 PUTBACK;
2842 call_sv (cb, G_VOID | G_DISCARD);
2843 SPAGAIN;
2844
2845 POPSTACK;
2846}
2847
2848static SV *
2849coro_avp_pop_and_free (pTHX_ AV **avp)
2850{
2851 AV *av = *avp;
2852 SV *res = av_pop (av);
2853
2854 if (AvFILLp (av) < 0)
2855 {
2856 *avp = 0;
2857 SvREFCNT_dec (av);
2858 }
2859
2860 return res;
2861}
2862
2863static void
2864coro_pop_on_enter (pTHX_ void *coro)
2865{
2866 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2867 SvREFCNT_dec (cb);
2868}
2869
2870static void
2871coro_pop_on_leave (pTHX_ void *coro)
2872{
2873 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2874 on_enterleave_call (aTHX_ sv_2mortal (cb));
2875}
2876
2877static void
2878enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
2879{
2880 if (!hook)
2881 return;
2882
2883 if (!*avp)
2884 {
2885 *avp = newAV ();
2886 AvREAL_off (*avp);
2887 }
2888
2889 av_push (*avp, (SV *)hook);
2890 av_push (*avp, (SV *)arg);
2891}
2892
2893static void
2894enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
2895{
2896 AV *av = *avp;
2897 int i;
2898
2899 if (!av)
2900 return;
2901
2902 for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
2903 if (AvARRAY (av)[i] == (SV *)hook)
2904 {
2905 if (execute)
2906 hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
2907
2908 memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
2909 av_pop (av);
2910 av_pop (av);
2911 break;
2912 }
2913
2914 if (AvFILLp (av) >= 0)
2915 {
2916 *avp = 0;
2917 SvREFCNT_dec_NN (av);
2918 }
2919}
2920
2921static void
2922api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2923{
2924 struct coro *coro = SvSTATE (coro_sv);
2925
2926 if (SvSTATE_current == coro)
2927 if (enter)
2928 enter (aTHX_ enter_arg);
2929
2930 enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
2931 enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
2932}
2933
2934static void
2935api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
2936{
2937 struct coro *coro = SvSTATE (coro_sv);
2938
2939 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2940 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
2941}
2942
2943static void
2944savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
2945{
2946 struct coro *coro = SvSTATE_current;
2947
2948 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2949}
2950
2951static void
2952savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
2953{
2954 struct coro *coro = SvSTATE_current;
2955
2956 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
2957}
2958
2959static void
2960api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2961{
2962 api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
2963
2964 /* this ought to be much cheaper than malloc + a single destructor call */
2965 if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
2966 if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2295} 2967}
2296 2968
2297/*****************************************************************************/ 2969/*****************************************************************************/
2298/* PerlIO::cede */ 2970/* PerlIO::cede */
2299 2971
… …
2301{ 2973{
2302 PerlIOBuf base; 2974 PerlIOBuf base;
2303 NV next, every; 2975 NV next, every;
2304} PerlIOCede; 2976} PerlIOCede;
2305 2977
2306static IV 2978static IV ecb_cold
2307PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2979PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2308{ 2980{
2309 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2981 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2310 2982
2311 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2983 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2312 self->next = nvtime () + self->every; 2984 self->next = nvtime () + self->every;
2313 2985
2314 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2986 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2315} 2987}
2316 2988
2317static SV * 2989static SV * ecb_cold
2318PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2990PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2319{ 2991{
2320 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2992 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2321 2993
2322 return newSVnv (self->every); 2994 return newSVnv (self->every);
… …
2373/* Coro::Semaphore & Coro::Signal */ 3045/* Coro::Semaphore & Coro::Signal */
2374 3046
2375static SV * 3047static SV *
2376coro_waitarray_new (pTHX_ int count) 3048coro_waitarray_new (pTHX_ int count)
2377{ 3049{
2378 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3050 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2379 AV *av = newAV (); 3051 AV *av = newAV ();
2380 SV **ary; 3052 SV **ary;
2381 3053
2382 /* unfortunately, building manually saves memory */ 3054 /* unfortunately, building manually saves memory */
2383 Newx (ary, 2, SV *); 3055 Newx (ary, 2, SV *);
… …
2429 XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); 3101 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2430 PUTBACK; 3102 PUTBACK;
2431 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); 3103 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2432 } 3104 }
2433 3105
2434 SvREFCNT_dec (cb); 3106 SvREFCNT_dec_NN (cb);
2435 } 3107 }
2436} 3108}
2437 3109
2438static void 3110static void
2439coro_semaphore_on_destroy (pTHX_ struct coro *coro) 3111coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2440{ 3112{
2441 /* call $sem->adjust (0) to possibly wake up some other waiters */ 3113 /* call $sem->adjust (0) to possibly wake up some other waiters */
2442 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 3114 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2443} 3115}
2444 3116
2445static int 3117static int
2446slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 3118slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2447{ 3119{
2448 AV *av = (AV *)frame->data; 3120 AV *av = (AV *)frame->data;
2449 SV *count_sv = AvARRAY (av)[0]; 3121 SV *count_sv = AvARRAY (av)[0];
3122 SV *coro_hv = SvRV (coro_current);
3123
3124 frame->destroy = 0;
2450 3125
2451 /* if we are about to throw, don't actually acquire the lock, just throw */ 3126 /* if we are about to throw, don't actually acquire the lock, just throw */
2452 if (CORO_THROW) 3127 if (ecb_expect_false (CORO_THROW))
3128 {
3129 /* we still might be responsible for the semaphore, so wake up others */
3130 coro_semaphore_adjust (aTHX_ av, 0);
3131
2453 return 0; 3132 return 0;
3133 }
2454 else if (SvIVX (count_sv) > 0) 3134 else if (SvIVX (count_sv) > 0)
2455 { 3135 {
2456 SvSTATE_current->on_destroy = 0;
2457
2458 if (acquire) 3136 if (acquire)
2459 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3137 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2460 else 3138 else
2461 coro_semaphore_adjust (aTHX_ av, 0); 3139 coro_semaphore_adjust (aTHX_ av, 0);
2462 3140
… …
2466 { 3144 {
2467 int i; 3145 int i;
2468 /* if we were woken up but can't down, we look through the whole */ 3146 /* if we were woken up but can't down, we look through the whole */
2469 /* waiters list and only add us if we aren't in there already */ 3147 /* waiters list and only add us if we aren't in there already */
2470 /* this avoids some degenerate memory usage cases */ 3148 /* this avoids some degenerate memory usage cases */
2471 3149 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2472 for (i = 1; i <= AvFILLp (av); ++i)
2473 if (AvARRAY (av)[i] == SvRV (coro_current)) 3150 if (AvARRAY (av)[i] == coro_hv)
2474 return 1; 3151 return 1;
2475 3152
2476 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3153 av_push (av, SvREFCNT_inc (coro_hv));
2477 return 1; 3154 return 1;
2478 } 3155 }
2479} 3156}
2480 3157
2481static int 3158static int
… …
2504 { 3181 {
2505 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3182 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2506 3183
2507 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3184 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2508 frame->prepare = prepare_schedule; 3185 frame->prepare = prepare_schedule;
2509
2510 /* to avoid race conditions when a woken-up coro gets terminated */ 3186 /* to avoid race conditions when a woken-up coro gets terminated */
2511 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3187 /* we arrange for a temporary on_destroy that calls adjust (0) */
2512 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3188 frame->destroy = coro_semaphore_destroy;
2513 } 3189 }
2514} 3190}
2515 3191
2516static void 3192static void
2517slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3193slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2525{ 3201{
2526 if (items >= 2) 3202 if (items >= 2)
2527 { 3203 {
2528 /* callback form */ 3204 /* callback form */
2529 AV *av = (AV *)SvRV (arg [0]); 3205 AV *av = (AV *)SvRV (arg [0]);
2530 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3206 SV *cb_cv = s_get_cv_croak (arg [1]);
2531 3207
2532 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3208 av_push (av, SvREFCNT_inc_NN (cb_cv));
2533 3209
2534 if (SvIVX (AvARRAY (av)[0]) > 0) 3210 if (SvIVX (AvARRAY (av)[0]) > 0)
2535 coro_semaphore_adjust (aTHX_ av, 0); 3211 coro_semaphore_adjust (aTHX_ av, 0);
2536 3212
2537 frame->prepare = prepare_nop; 3213 frame->prepare = prepare_nop;
… …
2561 AvARRAY (av)[0] = AvARRAY (av)[1]; 3237 AvARRAY (av)[0] = AvARRAY (av)[1];
2562 AvARRAY (av)[1] = cb; 3238 AvARRAY (av)[1] = cb;
2563 3239
2564 cb = av_shift (av); 3240 cb = av_shift (av);
2565 3241
3242 if (SvTYPE (cb) == SVt_PVCV)
3243 {
3244 dSP;
3245 PUSHMARK (SP);
3246 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3247 PUTBACK;
3248 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3249 }
3250 else
3251 {
2566 api_ready (aTHX_ cb); 3252 api_ready (aTHX_ cb);
2567 sv_setiv (cb, 0); /* signal waiter */ 3253 sv_setiv (cb, 0); /* signal waiter */
3254 }
3255
2568 SvREFCNT_dec (cb); 3256 SvREFCNT_dec_NN (cb);
2569 3257
2570 --count; 3258 --count;
2571 } 3259 }
2572} 3260}
2573 3261
… …
2581static void 3269static void
2582slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3270slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2583{ 3271{
2584 AV *av = (AV *)SvRV (arg [0]); 3272 AV *av = (AV *)SvRV (arg [0]);
2585 3273
3274 if (items >= 2)
3275 {
3276 SV *cb_cv = s_get_cv_croak (arg [1]);
3277 av_push (av, SvREFCNT_inc_NN (cb_cv));
3278
2586 if (SvIVX (AvARRAY (av)[0])) 3279 if (SvIVX (AvARRAY (av)[0]))
3280 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3281
3282 frame->prepare = prepare_nop;
3283 frame->check = slf_check_nop;
3284 }
3285 else if (SvIVX (AvARRAY (av)[0]))
2587 { 3286 {
2588 SvIVX (AvARRAY (av)[0]) = 0; 3287 SvIVX (AvARRAY (av)[0]) = 0;
2589 frame->prepare = prepare_nop; 3288 frame->prepare = prepare_nop;
2590 frame->check = slf_check_nop; 3289 frame->check = slf_check_nop;
2591 } 3290 }
2592 else 3291 else
2593 { 3292 {
2594 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3293 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2595 3294
2596 av_push (av, waiter); 3295 av_push (av, waiter);
2597 3296
2598 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3297 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2599 frame->prepare = prepare_schedule; 3298 frame->prepare = prepare_schedule;
… …
2617 3316
2618static void 3317static void
2619coro_aio_callback (pTHX_ CV *cv) 3318coro_aio_callback (pTHX_ CV *cv)
2620{ 3319{
2621 dXSARGS; 3320 dXSARGS;
2622 AV *state = (AV *)GENSUB_ARG; 3321 AV *state = (AV *)S_GENSUB_ARG;
2623 SV *coro = av_pop (state); 3322 SV *coro = av_pop (state);
2624 SV *data_sv = newSV (sizeof (struct io_state)); 3323 SV *data_sv = newSV (sizeof (struct io_state));
2625 3324
2626 av_extend (state, items - 1); 3325 av_extend (state, items - 1);
2627 3326
… …
2647 } 3346 }
2648 3347
2649 av_push (state, data_sv); 3348 av_push (state, data_sv);
2650 3349
2651 api_ready (aTHX_ coro); 3350 api_ready (aTHX_ coro);
2652 SvREFCNT_dec (coro); 3351 SvREFCNT_dec_NN (coro);
2653 SvREFCNT_dec ((AV *)state); 3352 SvREFCNT_dec_NN ((AV *)state);
2654} 3353}
2655 3354
2656static int 3355static int
2657slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3356slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2658{ 3357{
… …
2663 /* it quickly returns */ 3362 /* it quickly returns */
2664 if (CORO_THROW) 3363 if (CORO_THROW)
2665 return 0; 3364 return 0;
2666 3365
2667 /* one element that is an RV? repeat! */ 3366 /* one element that is an RV? repeat! */
2668 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3367 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2669 return 1; 3368 return 1;
2670 3369
2671 /* restore status */ 3370 /* restore status */
2672 { 3371 {
2673 SV *data_sv = av_pop (state); 3372 SV *data_sv = av_pop (state);
… …
2676 errno = data->errorno; 3375 errno = data->errorno;
2677 PL_laststype = data->laststype; 3376 PL_laststype = data->laststype;
2678 PL_laststatval = data->laststatval; 3377 PL_laststatval = data->laststatval;
2679 PL_statcache = data->statcache; 3378 PL_statcache = data->statcache;
2680 3379
2681 SvREFCNT_dec (data_sv); 3380 SvREFCNT_dec_NN (data_sv);
2682 } 3381 }
2683 3382
2684 /* push result values */ 3383 /* push result values */
2685 { 3384 {
2686 dSP; 3385 dSP;
… …
2712 dSP; 3411 dSP;
2713 3412
2714 static SV *prio_cv; 3413 static SV *prio_cv;
2715 static SV *prio_sv; 3414 static SV *prio_sv;
2716 3415
2717 if (expect_false (!prio_cv)) 3416 if (ecb_expect_false (!prio_cv))
2718 { 3417 {
2719 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3418 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2720 prio_sv = newSViv (0); 3419 prio_sv = newSViv (0);
2721 } 3420 }
2722 3421
… …
2741 3440
2742 for (i = 0; i < items; ++i) 3441 for (i = 0; i < items; ++i)
2743 PUSHs (arg [i]); 3442 PUSHs (arg [i]);
2744 3443
2745 /* now push the callback closure */ 3444 /* now push the callback closure */
2746 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3445 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2747 3446
2748 /* now call the AIO function - we assume our request is uncancelable */ 3447 /* now call the AIO function - we assume our request is uncancelable */
2749 PUTBACK; 3448 PUTBACK;
2750 call_sv ((SV *)req, G_VOID | G_DISCARD); 3449 call_sv ((SV *)req, G_VOID | G_DISCARD);
2751 } 3450 }
2752 3451
2753 /* now that the requets is going, we loop toll we have a result */ 3452 /* now that the request is going, we loop till we have a result */
2754 frame->data = (void *)state; 3453 frame->data = (void *)state;
2755 frame->prepare = prepare_schedule; 3454 frame->prepare = prepare_schedule;
2756 frame->check = slf_check_aio_req; 3455 frame->check = slf_check_aio_req;
2757} 3456}
2758 3457
… …
2770 3469
2771#if CORO_CLONE 3470#if CORO_CLONE
2772# include "clone.c" 3471# include "clone.c"
2773#endif 3472#endif
2774 3473
3474/*****************************************************************************/
3475
3476static SV *
3477coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3478{
3479 SV *coro_sv;
3480 struct coro *coro;
3481 MAGIC *mg;
3482 HV *hv;
3483 SV *cb;
3484 int i;
3485
3486 if (argc > 0)
3487 {
3488 cb = s_get_cv_croak (argv [0]);
3489
3490 if (!is_coro)
3491 {
3492 if (CvISXSUB (cb))
3493 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3494
3495 if (!CvROOT (cb))
3496 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3497 }
3498 }
3499
3500 Newz (0, coro, 1, struct coro);
3501 coro->args = newAV ();
3502 coro->flags = CF_NEW;
3503
3504 if (coro_first) coro_first->prev = coro;
3505 coro->next = coro_first;
3506 coro_first = coro;
3507
3508 coro->hv = hv = newHV ();
3509 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3510 mg->mg_flags |= MGf_DUP;
3511 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3512
3513 if (argc > 0)
3514 {
3515 av_extend (coro->args, argc + is_coro - 1);
3516
3517 if (is_coro)
3518 {
3519 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3520 cb = (SV *)cv_coro_run;
3521 }
3522
3523 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3524
3525 for (i = 1; i < argc; i++)
3526 av_push (coro->args, newSVsv (argv [i]));
3527 }
3528
3529 return coro_sv;
3530}
3531
3532#ifndef __cplusplus
3533ecb_cold XS(boot_Coro__State);
3534#endif
3535
3536#if CORO_JIT
3537
3538static void ecb_noinline ecb_cold
3539pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3540{
3541 dSP;
3542 AV *av = newAV ();
3543
3544 av_store (av, 3, newSVuv (d));
3545 av_store (av, 2, newSVuv (c));
3546 av_store (av, 1, newSVuv (b));
3547 av_store (av, 0, newSVuv (a));
3548
3549 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3550
3551 PUTBACK;
3552}
3553
3554static void ecb_noinline ecb_cold
3555jit_init (pTHX)
3556{
3557 dSP;
3558 SV *load, *save;
3559 char *map_base;
3560 char *load_ptr, *save_ptr;
3561 STRLEN load_len, save_len, map_len;
3562 int count;
3563
3564 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3565
3566 PUSHMARK (SP);
3567 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3568 #include "state.h"
3569 count = call_pv ("Coro::State::_jit", G_ARRAY);
3570 SPAGAIN;
3571
3572 save = POPs; save_ptr = SvPVbyte (save, save_len);
3573 load = POPs; load_ptr = SvPVbyte (load, load_len);
3574
3575 map_len = load_len + save_len + 16;
3576
3577 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3578
3579 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3580
3581 load_perl_slots = (load_save_perl_slots_type)map_base;
3582 memcpy (map_base, load_ptr, load_len);
3583
3584 map_base += (load_len + 15) & ~15;
3585
3586 save_perl_slots = (load_save_perl_slots_type)map_base;
3587 memcpy (map_base, save_ptr, save_len);
3588
3589 /* we are good citizens and try to make the page read-only, so the evil evil */
3590 /* hackers might have it a bit more difficult */
3591 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3592
3593 PUTBACK;
3594 eval_pv ("undef &Coro::State::_jit", 1);
3595}
3596
3597#endif
3598
2775MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3599MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2776 3600
2777PROTOTYPES: DISABLE 3601PROTOTYPES: DISABLE
2778 3602
2779BOOT: 3603BOOT:
2780{ 3604{
3605#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3606#include "state.h"
2781#ifdef USE_ITHREADS 3607#ifdef USE_ITHREADS
2782# if CORO_PTHREAD 3608# if CORO_PTHREAD
2783 coro_thx = PERL_GET_CONTEXT; 3609 coro_thx = PERL_GET_CONTEXT;
2784# endif 3610# endif
2785#endif 3611#endif
2786 BOOT_PAGESIZE; 3612 /* perl defines these to check for existance first, but why it doesn't */
3613 /* just create them one at init time is not clear to me, except for */
3614 /* programs trying to delete them, but... */
3615 /* anyway, we declare this as invalid and make sure they are initialised here */
3616 DEFSV;
3617 ERRSV;
2787 3618
2788 cctx_current = cctx_new_empty (); 3619 cctx_current = cctx_new_empty ();
2789 3620
2790 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3621 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2791 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3622 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2792 3623
2793 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3624 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2794 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3625 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
2795 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; 3626 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
2796 3627
2797 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
2798 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); 3628 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
2799 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); 3629 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
2800 3630
2801 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 3631 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
2802 3632
… …
2831 coroapi.prepare_nop = prepare_nop; 3661 coroapi.prepare_nop = prepare_nop;
2832 coroapi.prepare_schedule = prepare_schedule; 3662 coroapi.prepare_schedule = prepare_schedule;
2833 coroapi.prepare_cede = prepare_cede; 3663 coroapi.prepare_cede = prepare_cede;
2834 coroapi.prepare_cede_notself = prepare_cede_notself; 3664 coroapi.prepare_cede_notself = prepare_cede_notself;
2835 3665
2836 { 3666 time_init (aTHX);
2837 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2838 3667
2839 if (!svp) croak ("Time::HiRes is required");
2840 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2841
2842 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2843 }
2844
2845 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3668 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3669#if CORO_JIT
3670 PUTBACK;
3671 jit_init (aTHX);
3672 SPAGAIN;
3673#endif
2846} 3674}
2847 3675
2848SV * 3676SV *
2849new (char *klass, ...) 3677new (SV *klass, ...)
2850 ALIAS: 3678 ALIAS:
2851 Coro::new = 1 3679 Coro::new = 1
2852 CODE: 3680 CODE:
2853{ 3681 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2854 struct coro *coro; 3682 OUTPUT:
2855 MAGIC *mg;
2856 HV *hv;
2857 CV *cb;
2858 int i;
2859
2860 if (items > 1)
2861 {
2862 cb = coro_sv_2cv (aTHX_ ST (1));
2863
2864 if (!ix)
2865 {
2866 if (CvISXSUB (cb))
2867 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2868
2869 if (!CvROOT (cb))
2870 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2871 }
2872 }
2873
2874 Newz (0, coro, 1, struct coro);
2875 coro->args = newAV ();
2876 coro->flags = CF_NEW;
2877
2878 if (coro_first) coro_first->prev = coro;
2879 coro->next = coro_first;
2880 coro_first = coro;
2881
2882 coro->hv = hv = newHV ();
2883 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2884 mg->mg_flags |= MGf_DUP;
2885 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2886
2887 if (items > 1)
2888 {
2889 av_extend (coro->args, items - 1 + ix - 1);
2890
2891 if (ix)
2892 {
2893 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2894 cb = cv_coro_run;
2895 }
2896
2897 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2898
2899 for (i = 2; i < items; i++)
2900 av_push (coro->args, newSVsv (ST (i)));
2901 }
2902}
2903 OUTPUT:
2904 RETVAL 3683 RETVAL
2905 3684
2906void 3685void
2907transfer (...) 3686transfer (...)
2908 PROTOTYPE: $$ 3687 PROTOTYPE: $$
2909 CODE: 3688 CODE:
2910 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3689 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2911
2912bool
2913_destroy (SV *coro_sv)
2914 CODE:
2915 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2916 OUTPUT:
2917 RETVAL
2918
2919void
2920_exit (int code)
2921 PROTOTYPE: $
2922 CODE:
2923 _exit (code);
2924 3690
2925SV * 3691SV *
2926clone (Coro::State coro) 3692clone (Coro::State coro)
2927 CODE: 3693 CODE:
2928{ 3694{
… …
2983void 3749void
2984list () 3750list ()
2985 PROTOTYPE: 3751 PROTOTYPE:
2986 PPCODE: 3752 PPCODE:
2987{ 3753{
2988 struct coro *coro; 3754 struct coro *coro;
2989 for (coro = coro_first; coro; coro = coro->next) 3755 for (coro = coro_first; coro; coro = coro->next)
2990 if (coro->hv) 3756 if (coro->hv)
2991 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3757 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2992} 3758}
2993 3759
… …
2997 eval = 1 3763 eval = 1
2998 CODE: 3764 CODE:
2999{ 3765{
3000 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3766 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3001 { 3767 {
3002 struct coro temp; 3768 struct coro *current = SvSTATE_current;
3769 struct CoroSLF slf_save;
3003 3770
3004 if (!(coro->flags & CF_RUNNING)) 3771 if (current != coro)
3005 { 3772 {
3006 PUTBACK; 3773 PUTBACK;
3007 save_perl (aTHX_ &temp); 3774 save_perl (aTHX_ current);
3008 load_perl (aTHX_ coro); 3775 load_perl (aTHX_ coro);
3776 /* the coro is most likely in an active SLF call.
3777 * while not strictly required (the code we execute is
3778 * not allowed to call any SLF functions), it's cleaner
3779 * to reinitialise the slf_frame and restore it later.
3780 * This might one day allow us to actually do SLF calls
3781 * from code executed here.
3782 */
3783 slf_save = slf_frame;
3784 slf_frame.prepare = 0;
3785 SPAGAIN;
3009 } 3786 }
3010 3787
3011 {
3012 dSP;
3013 ENTER;
3014 SAVETMPS;
3015 PUTBACK;
3016 PUSHSTACK; 3788 PUSHSTACK;
3789
3017 PUSHMARK (SP); 3790 PUSHMARK (SP);
3791 PUTBACK;
3018 3792
3019 if (ix) 3793 if (ix)
3020 eval_sv (coderef, 0); 3794 eval_sv (coderef, 0);
3021 else 3795 else
3022 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3796 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3023 3797
3024 POPSTACK; 3798 POPSTACK;
3025 SPAGAIN; 3799 SPAGAIN;
3026 FREETMPS;
3027 LEAVE;
3028 PUTBACK;
3029 }
3030 3800
3031 if (!(coro->flags & CF_RUNNING)) 3801 if (current != coro)
3032 { 3802 {
3803 PUTBACK;
3804 slf_frame = slf_save;
3033 save_perl (aTHX_ coro); 3805 save_perl (aTHX_ coro);
3034 load_perl (aTHX_ &temp); 3806 load_perl (aTHX_ current);
3035 SPAGAIN; 3807 SPAGAIN;
3036 } 3808 }
3037 } 3809 }
3038} 3810}
3039 3811
… …
3042 PROTOTYPE: $ 3814 PROTOTYPE: $
3043 ALIAS: 3815 ALIAS:
3044 is_ready = CF_READY 3816 is_ready = CF_READY
3045 is_running = CF_RUNNING 3817 is_running = CF_RUNNING
3046 is_new = CF_NEW 3818 is_new = CF_NEW
3047 is_destroyed = CF_DESTROYED 3819 is_destroyed = CF_ZOMBIE
3820 is_zombie = CF_ZOMBIE
3821 is_suspended = CF_SUSPENDED
3048 CODE: 3822 CODE:
3049 RETVAL = boolSV (coro->flags & ix); 3823 RETVAL = boolSV (coro->flags & ix);
3050 OUTPUT: 3824 OUTPUT:
3051 RETVAL 3825 RETVAL
3052 3826
3053void 3827void
3054throw (Coro::State self, SV *throw = &PL_sv_undef) 3828throw (SV *self, SV *exception = &PL_sv_undef)
3055 PROTOTYPE: $;$ 3829 PROTOTYPE: $;$
3056 CODE: 3830 CODE:
3057{ 3831{
3832 struct coro *coro = SvSTATE (self);
3058 struct coro *current = SvSTATE_current; 3833 struct coro *current = SvSTATE_current;
3059 SV **throwp = self == current ? &CORO_THROW : &self->except; 3834 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3060 SvREFCNT_dec (*throwp); 3835 SvREFCNT_dec (*exceptionp);
3061 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3836 SvGETMAGIC (exception);
3837 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3838
3839 api_ready (aTHX_ self);
3062} 3840}
3063 3841
3064void 3842void
3065api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3843api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3066 PROTOTYPE: $;$ 3844 PROTOTYPE: $;$
… …
3117 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3895 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3118 3896
3119 SV *tmp = *src; *src = *dst; *dst = tmp; 3897 SV *tmp = *src; *src = *dst; *dst = tmp;
3120 } 3898 }
3121 3899
3900void
3901cancel (Coro::State self)
3902 CODE:
3903 coro_state_destroy (aTHX_ self);
3904
3905SV *
3906enable_times (int enabled = enable_times)
3907 CODE:
3908{
3909 RETVAL = boolSV (enable_times);
3910
3911 if (enabled != enable_times)
3912 {
3913 enable_times = enabled;
3914
3915 coro_times_update ();
3916 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3917 }
3918}
3919 OUTPUT:
3920 RETVAL
3921
3922void
3923times (Coro::State self)
3924 PPCODE:
3925{
3926 struct coro *current = SvSTATE (coro_current);
3927
3928 if (ecb_expect_false (current == self))
3929 {
3930 coro_times_update ();
3931 coro_times_add (SvSTATE (coro_current));
3932 }
3933
3934 EXTEND (SP, 2);
3935 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3936 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3937
3938 if (ecb_expect_false (current == self))
3939 coro_times_sub (SvSTATE (coro_current));
3940}
3941
3942void
3943swap_sv (Coro::State coro, SV *sva, SV *svb)
3944 CODE:
3945{
3946 struct coro *current = SvSTATE_current;
3947 AV *swap_sv;
3948 int i;
3949
3950 sva = SvRV (sva);
3951 svb = SvRV (svb);
3952
3953 if (current == coro)
3954 SWAP_SVS_LEAVE (current);
3955
3956 if (!coro->swap_sv)
3957 coro->swap_sv = newAV ();
3958
3959 swap_sv = coro->swap_sv;
3960
3961 for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2)
3962 {
3963 SV *a = AvARRAY (swap_sv)[i ];
3964 SV *b = AvARRAY (swap_sv)[i + 1];
3965
3966 if (a == sva && b == svb)
3967 {
3968 SvREFCNT_dec_NN (a);
3969 SvREFCNT_dec_NN (b);
3970
3971 for (; i <= AvFILLp (swap_sv) - 2; i++)
3972 AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2];
3973
3974 AvFILLp (swap_sv) -= 2;
3975
3976 goto removed;
3977 }
3978 }
3979
3980 av_push (swap_sv, SvREFCNT_inc_NN (sva));
3981 av_push (swap_sv, SvREFCNT_inc_NN (svb));
3982
3983 removed:
3984
3985 if (current == coro)
3986 SWAP_SVS_ENTER (current);
3987}
3988
3122 3989
3123MODULE = Coro::State PACKAGE = Coro 3990MODULE = Coro::State PACKAGE = Coro
3124 3991
3125BOOT: 3992BOOT:
3126{ 3993{
3127 int i; 3994 if (SVt_LAST > 32)
3995 croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
3128 3996
3129 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3997 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3130 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3998 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3131 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3999 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3132 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3133 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 4000 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3134 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 4001 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3135 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 4002 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3136 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 4003 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3137 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 4004 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3138 4005
3139 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 4006 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3140 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 4007 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3141 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 4008 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3142 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 4009 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3143 4010
3144 coro_stash = gv_stashpv ("Coro", TRUE); 4011 coro_stash = gv_stashpv ("Coro", TRUE);
3145 4012
3146 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 4013 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3147 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 4014 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3148 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 4015 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3149 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 4016 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3150 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 4017 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3151 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 4018 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3152
3153 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3154 coro_ready[i] = newAV ();
3155 4019
3156 { 4020 {
3157 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 4021 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3158 4022
3159 coroapi.schedule = api_schedule; 4023 coroapi.schedule = api_schedule;
… …
3163 coroapi.ready = api_ready; 4027 coroapi.ready = api_ready;
3164 coroapi.is_ready = api_is_ready; 4028 coroapi.is_ready = api_is_ready;
3165 coroapi.nready = coro_nready; 4029 coroapi.nready = coro_nready;
3166 coroapi.current = coro_current; 4030 coroapi.current = coro_current;
3167 4031
4032 coroapi.enterleave_hook = api_enterleave_hook;
4033 coroapi.enterleave_unhook = api_enterleave_unhook;
4034 coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
4035
3168 /*GCoroAPI = &coroapi;*/ 4036 /*GCoroAPI = &coroapi;*/
3169 sv_setiv (sv, (IV)&coroapi); 4037 sv_setiv (sv, (IV)&coroapi);
3170 SvREADONLY_on (sv); 4038 SvREADONLY_on (sv);
3171 } 4039 }
3172} 4040}
3173 4041
4042SV *
4043async (...)
4044 PROTOTYPE: &@
4045 CODE:
4046 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
4047 api_ready (aTHX_ RETVAL);
4048 OUTPUT:
4049 RETVAL
4050
4051void
4052_destroy (Coro::State coro)
4053 CODE:
4054 /* used by the manager thread */
4055 coro_state_destroy (aTHX_ coro);
4056
4057void
4058on_destroy (Coro::State coro, SV *cb)
4059 CODE:
4060 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
4061
4062void
4063join (...)
4064 CODE:
4065 CORO_EXECUTE_SLF_XS (slf_init_join);
4066
3174void 4067void
3175terminate (...) 4068terminate (...)
3176 CODE: 4069 CODE:
3177 CORO_EXECUTE_SLF_XS (slf_init_terminate); 4070 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3178 4071
3179void 4072void
4073cancel (...)
4074 CODE:
4075 CORO_EXECUTE_SLF_XS (slf_init_cancel);
4076
4077int
4078safe_cancel (Coro::State self, ...)
4079 C_ARGS: aTHX_ self, &ST (1), items - 1
4080
4081void
3180schedule (...) 4082schedule (...)
3181 CODE: 4083 CODE:
3182 CORO_EXECUTE_SLF_XS (slf_init_schedule); 4084 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3183 4085
3184void 4086void
… …
3200cede_notself (...) 4102cede_notself (...)
3201 CODE: 4103 CODE:
3202 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 4104 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3203 4105
3204void 4106void
3205_cancel (Coro::State self)
3206 CODE:
3207 coro_state_destroy (aTHX_ self);
3208 coro_call_on_destroy (aTHX_ self);
3209
3210void
3211_set_current (SV *current) 4107_set_current (SV *current)
3212 PROTOTYPE: $ 4108 PROTOTYPE: $
3213 CODE: 4109 CODE:
3214 SvREFCNT_dec (SvRV (coro_current)); 4110 SvREFCNT_dec_NN (SvRV (coro_current));
3215 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 4111 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3216 4112
3217void 4113void
3218_set_readyhook (SV *hook) 4114_set_readyhook (SV *hook)
3219 PROTOTYPE: $ 4115 PROTOTYPE: $
3220 CODE: 4116 CODE:
3221 SvREFCNT_dec (coro_readyhook); 4117 SvREFCNT_dec (coro_readyhook);
4118 SvGETMAGIC (hook);
4119 if (SvOK (hook))
4120 {
3222 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 4121 coro_readyhook = newSVsv (hook);
4122 CORO_READYHOOK = invoke_sv_ready_hook_helper;
4123 }
4124 else
4125 {
4126 coro_readyhook = 0;
4127 CORO_READYHOOK = 0;
4128 }
3223 4129
3224int 4130int
3225prio (Coro::State coro, int newprio = 0) 4131prio (Coro::State coro, int newprio = 0)
3226 PROTOTYPE: $;$ 4132 PROTOTYPE: $;$
3227 ALIAS: 4133 ALIAS:
… …
3233 if (items > 1) 4139 if (items > 1)
3234 { 4140 {
3235 if (ix) 4141 if (ix)
3236 newprio = coro->prio - newprio; 4142 newprio = coro->prio - newprio;
3237 4143
3238 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 4144 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3239 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 4145 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3240 4146
3241 coro->prio = newprio; 4147 coro->prio = newprio;
3242 } 4148 }
3243} 4149}
3244 OUTPUT: 4150 OUTPUT:
… …
3259 RETVAL = coro_nready; 4165 RETVAL = coro_nready;
3260 OUTPUT: 4166 OUTPUT:
3261 RETVAL 4167 RETVAL
3262 4168
3263void 4169void
4170suspend (Coro::State self)
4171 PROTOTYPE: $
4172 CODE:
4173 self->flags |= CF_SUSPENDED;
4174
4175void
4176resume (Coro::State self)
4177 PROTOTYPE: $
4178 CODE:
4179 self->flags &= ~CF_SUSPENDED;
4180
4181void
3264_pool_handler (...) 4182_pool_handler (...)
3265 CODE: 4183 CODE:
3266 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 4184 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3267 4185
3268void 4186void
… …
3279 for (i = 1; i < items; ++i) 4197 for (i = 1; i < items; ++i)
3280 av_push (av, SvREFCNT_inc_NN (ST (i))); 4198 av_push (av, SvREFCNT_inc_NN (ST (i)));
3281 4199
3282 if ((SV *)hv == &PL_sv_undef) 4200 if ((SV *)hv == &PL_sv_undef)
3283 { 4201 {
3284 PUSHMARK (SP); 4202 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3285 EXTEND (SP, 2);
3286 PUSHs (sv_Coro);
3287 PUSHs ((SV *)cv_pool_handler);
3288 PUTBACK;
3289 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3290 SPAGAIN;
3291
3292 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4203 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4204 SvREFCNT_dec_NN (sv);
3293 } 4205 }
3294 4206
3295 { 4207 {
3296 struct coro *coro = SvSTATE_hv (hv); 4208 struct coro *coro = SvSTATE_hv (hv);
3297 4209
… …
3304 api_ready (aTHX_ (SV *)hv); 4216 api_ready (aTHX_ (SV *)hv);
3305 4217
3306 if (GIMME_V != G_VOID) 4218 if (GIMME_V != G_VOID)
3307 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); 4219 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3308 else 4220 else
3309 SvREFCNT_dec (hv); 4221 SvREFCNT_dec_NN (hv);
3310} 4222}
3311 4223
3312SV * 4224SV *
3313rouse_cb () 4225rouse_cb ()
3314 PROTOTYPE: 4226 PROTOTYPE:
… …
3321rouse_wait (...) 4233rouse_wait (...)
3322 PROTOTYPE: ;$ 4234 PROTOTYPE: ;$
3323 PPCODE: 4235 PPCODE:
3324 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4236 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3325 4237
4238void
4239on_enter (SV *block)
4240 ALIAS:
4241 on_leave = 1
4242 PROTOTYPE: &
4243 CODE:
4244{
4245 struct coro *coro = SvSTATE_current;
4246 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4247
4248 block = s_get_cv_croak (block);
4249
4250 if (!*avp)
4251 *avp = newAV ();
4252
4253 av_push (*avp, SvREFCNT_inc (block));
4254
4255 if (!ix)
4256 on_enterleave_call (aTHX_ block);
4257
4258 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4259 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4260 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4261}
4262
3326 4263
3327MODULE = Coro::State PACKAGE = PerlIO::cede 4264MODULE = Coro::State PACKAGE = PerlIO::cede
3328 4265
3329BOOT: 4266BOOT:
3330 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4267 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3333MODULE = Coro::State PACKAGE = Coro::Semaphore 4270MODULE = Coro::State PACKAGE = Coro::Semaphore
3334 4271
3335SV * 4272SV *
3336new (SV *klass, SV *count = 0) 4273new (SV *klass, SV *count = 0)
3337 CODE: 4274 CODE:
4275{
4276 int semcnt = 1;
4277
4278 if (count)
4279 {
4280 SvGETMAGIC (count);
4281
4282 if (SvOK (count))
4283 semcnt = SvIV (count);
4284 }
4285
3338 RETVAL = sv_bless ( 4286 RETVAL = sv_bless (
3339 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4287 coro_waitarray_new (aTHX_ semcnt),
3340 GvSTASH (CvGV (cv)) 4288 GvSTASH (CvGV (cv))
3341 ); 4289 );
4290}
3342 OUTPUT: 4291 OUTPUT:
3343 RETVAL 4292 RETVAL
3344 4293
3345# helper for Coro::Channel 4294# helper for Coro::Channel and others
3346SV * 4295SV *
3347_alloc (int count) 4296_alloc (int count)
3348 CODE: 4297 CODE:
3349 RETVAL = coro_waitarray_new (aTHX_ count); 4298 RETVAL = coro_waitarray_new (aTHX_ count);
3350 OUTPUT: 4299 OUTPUT:
… …
3356 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); 4305 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
3357 OUTPUT: 4306 OUTPUT:
3358 RETVAL 4307 RETVAL
3359 4308
3360void 4309void
3361up (SV *self, int adjust = 1) 4310up (SV *self)
3362 ALIAS:
3363 adjust = 1
3364 CODE: 4311 CODE:
4312 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
4313
4314void
4315adjust (SV *self, int adjust)
4316 CODE:
3365 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 4317 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
3366 4318
3367void 4319void
3368down (...) 4320down (...)
3369 CODE: 4321 CODE:
3370 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 4322 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
… …
3392 XSRETURN_NO; 4344 XSRETURN_NO;
3393} 4345}
3394 4346
3395void 4347void
3396waiters (SV *self) 4348waiters (SV *self)
3397 PPCODE: 4349 PPCODE:
3398{ 4350{
3399 AV *av = (AV *)SvRV (self); 4351 AV *av = (AV *)SvRV (self);
3400 int wcount = AvFILLp (av) + 1 - 1; 4352 int wcount = AvFILLp (av) + 1 - 1;
3401 4353
3402 if (GIMME_V == G_SCALAR) 4354 if (GIMME_V == G_SCALAR)
… …
3408 for (i = 1; i <= wcount; ++i) 4360 for (i = 1; i <= wcount; ++i)
3409 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4361 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3410 } 4362 }
3411} 4363}
3412 4364
4365MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4366
4367void
4368_may_delete (SV *sem, int count, unsigned int extra_refs)
4369 PPCODE:
4370{
4371 AV *av = (AV *)SvRV (sem);
4372
4373 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4374 && AvFILLp (av) == 0 /* no waiters, just count */
4375 && SvIV (AvARRAY (av)[0]) == count)
4376 XSRETURN_YES;
4377
4378 XSRETURN_NO;
4379}
4380
3413MODULE = Coro::State PACKAGE = Coro::Signal 4381MODULE = Coro::State PACKAGE = Coro::Signal
3414 4382
3415SV * 4383SV *
3416new (SV *klass) 4384new (SV *klass)
3417 CODE: 4385 CODE:
… …
3429 4397
3430void 4398void
3431broadcast (SV *self) 4399broadcast (SV *self)
3432 CODE: 4400 CODE:
3433{ 4401{
3434 AV *av = (AV *)SvRV (self); 4402 AV *av = (AV *)SvRV (self);
3435 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4403 coro_signal_wake (aTHX_ av, AvFILLp (av));
3436} 4404}
3437 4405
3438void 4406void
3439send (SV *self) 4407send (SV *self)
… …
3447 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4415 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3448} 4416}
3449 4417
3450IV 4418IV
3451awaited (SV *self) 4419awaited (SV *self)
3452 CODE: 4420 CODE:
3453 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4421 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3454 OUTPUT: 4422 OUTPUT:
3455 RETVAL 4423 RETVAL
3456 4424
3457 4425
… …
3462 4430
3463void 4431void
3464_schedule (...) 4432_schedule (...)
3465 CODE: 4433 CODE:
3466{ 4434{
3467 static int incede; 4435 static int incede;
3468 4436
3469 api_cede_notself (aTHX); 4437 api_cede_notself (aTHX);
3470 4438
3471 ++incede; 4439 ++incede;
3472 while (coro_nready >= incede && api_cede (aTHX)) 4440 while (coro_nready >= incede && api_cede (aTHX))
… …
3488 4456
3489void 4457void
3490_register (char *target, char *proto, SV *req) 4458_register (char *target, char *proto, SV *req)
3491 CODE: 4459 CODE:
3492{ 4460{
3493 CV *req_cv = coro_sv_2cv (aTHX_ req); 4461 SV *req_cv = s_get_cv_croak (req);
3494 /* newXSproto doesn't return the CV on 5.8 */ 4462 /* newXSproto doesn't return the CV on 5.8 */
3495 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4463 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3496 sv_setpv ((SV *)slf_cv, proto); 4464 sv_setpv ((SV *)slf_cv, proto);
3497 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4465 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3498} 4466}
3499 4467
4468MODULE = Coro::State PACKAGE = Coro::Select
4469
4470void
4471patch_pp_sselect ()
4472 CODE:
4473 if (!coro_old_pp_sselect)
4474 {
4475 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4476 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4477 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4478 }
4479
4480void
4481unpatch_pp_sselect ()
4482 CODE:
4483 if (coro_old_pp_sselect)
4484 {
4485 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4486 coro_old_pp_sselect = 0;
4487 }
4488
4489MODULE = Coro::State PACKAGE = Coro::Util
4490
4491void
4492_exit (int code)
4493 CODE:
4494 _exit (code);
4495
4496NV
4497time ()
4498 CODE:
4499 RETVAL = nvtime (aTHX);
4500 OUTPUT:
4501 RETVAL
4502
4503NV
4504gettimeofday ()
4505 PPCODE:
4506{
4507 UV tv [2];
4508 u2time (aTHX_ tv);
4509 EXTEND (SP, 2);
4510 PUSHs (sv_2mortal (newSVuv (tv [0])));
4511 PUSHs (sv_2mortal (newSVuv (tv [1])));
4512}
4513

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