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Comparing Coro/Coro/State.xs (file contents):
Revision 1.336 by root, Thu Dec 4 17:29:40 2008 UTC vs.
Revision 1.452 by root, Tue Jun 30 12:42:45 2015 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 */
… …
190static SV *sv_pool_size; 149static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */ 150static SV *sv_async_pool_idle; /* description string */
192static AV *av_async_pool; /* idle pool */ 151static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */ 152static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler; 153static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
196 154
197/* Coro::AnyEvent */ 155/* Coro::AnyEvent */
198static SV *sv_activity; 156static SV *sv_activity;
199 157
158/* enable processtime/realtime profiling */
159static char enable_times;
160typedef U32 coro_ts[2];
161static coro_ts time_real, time_cpu;
162static char times_valid;
163
200static struct coro_cctx *cctx_first; 164static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 165static int cctx_count, cctx_idle;
202 166
203enum { 167enum
168{
204 CC_MAPPED = 0x01, 169 CC_MAPPED = 0x01,
205 CC_NOREUSE = 0x02, /* throw this away after tracing */ 170 CC_NOREUSE = 0x02, /* throw this away after tracing */
206 CC_TRACE = 0x04, 171 CC_TRACE = 0x04,
207 CC_TRACE_SUB = 0x08, /* trace sub calls */ 172 CC_TRACE_SUB = 0x08, /* trace sub calls */
208 CC_TRACE_LINE = 0x10, /* trace each statement */ 173 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
213typedef struct coro_cctx 178typedef struct coro_cctx
214{ 179{
215 struct coro_cctx *next; 180 struct coro_cctx *next;
216 181
217 /* the stack */ 182 /* the stack */
218 void *sptr; 183 struct coro_stack stack;
219 size_t ssize;
220 184
221 /* cpu state */ 185 /* cpu state */
222 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 186 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
187#ifndef NDEBUG
223 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 188 JMPENV *idle_te; /* same as idle_sp, but for top_env */
189#endif
224 JMPENV *top_env; 190 JMPENV *top_env;
225 coro_context cctx; 191 coro_context cctx;
226 192
227 U32 gen; 193 U32 gen;
228#if CORO_USE_VALGRIND 194#if CORO_USE_VALGRIND
229 int valgrind_id; 195 int valgrind_id;
230#endif 196#endif
231 unsigned char flags; 197 unsigned char flags;
232} coro_cctx; 198} coro_cctx;
233 199
234coro_cctx *cctx_current; /* the currently running cctx */ 200static coro_cctx *cctx_current; /* the currently running cctx */
235 201
236/*****************************************************************************/ 202/*****************************************************************************/
237 203
204static MGVTBL coro_state_vtbl;
205
238enum { 206enum
207{
239 CF_RUNNING = 0x0001, /* coroutine is running */ 208 CF_RUNNING = 0x0001, /* coroutine is running */
240 CF_READY = 0x0002, /* coroutine is ready */ 209 CF_READY = 0x0002, /* coroutine is ready */
241 CF_NEW = 0x0004, /* has never been switched to */ 210 CF_NEW = 0x0004, /* has never been switched to */
242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 211 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
212 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
213 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
243}; 214};
244 215
245/* the structure where most of the perl state is stored, overlaid on the cxstack */ 216/* the structure where most of the perl state is stored, overlaid on the cxstack */
246typedef struct 217typedef struct
247{ 218{
248 SV *defsv;
249 AV *defav;
250 SV *errsv;
251 SV *irsgv;
252 HV *hinthv;
253#define VAR(name,type) type name; 219 #define VARx(name,expr,type) type name;
254# include "state.h" 220 #include "state.h"
255#undef VAR
256} perl_slots; 221} perl_slots;
257 222
223/* 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)) 224#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
259 225
260/* this is a structure representing a perl-level coroutine */ 226/* this is a structure representing a perl-level coroutine */
261struct coro { 227struct coro
228{
262 /* the C coroutine allocated to this perl coroutine, if any */ 229 /* the C coroutine allocated to this perl coroutine, if any */
263 coro_cctx *cctx; 230 coro_cctx *cctx;
231
232 /* ready queue */
233 struct coro *next_ready;
264 234
265 /* state data */ 235 /* state data */
266 struct CoroSLF slf_frame; /* saved slf frame */ 236 struct CoroSLF slf_frame; /* saved slf frame */
267 AV *mainstack; 237 AV *mainstack;
268 perl_slots *slot; /* basically the saved sp */ 238 perl_slots *slot; /* basically the saved sp */
269 239
270 CV *startcv; /* the CV to execute */ 240 CV *startcv; /* the CV to execute */
271 AV *args; /* data associated with this coroutine (initial args) */ 241 AV *args; /* data associated with this coroutine (initial args) */
272 int refcnt; /* coroutines are refcounted, yes */
273 int flags; /* CF_ flags */ 242 int flags; /* CF_ flags */
274 HV *hv; /* the perl hash associated with this coro, if any */ 243 HV *hv; /* the perl hash associated with this coro, if any */
275 void (*on_destroy)(pTHX_ struct coro *coro);
276 244
277 /* statistics */ 245 /* statistics */
278 int usecount; /* number of transfers to this coro */ 246 int usecount; /* number of transfers to this coro */
279 247
280 /* coro process data */ 248 /* coro process data */
281 int prio; 249 int prio;
282 SV *except; /* exception to be thrown */ 250 SV *except; /* exception to be thrown */
283 SV *rouse_cb; 251 SV *rouse_cb; /* last rouse callback */
252 AV *on_destroy; /* callbacks or coros to notify on destroy */
253 AV *status; /* the exit status list */
284 254
285 /* async_pool */ 255 /* async_pool */
286 SV *saved_deffh; 256 SV *saved_deffh;
287 SV *invoke_cb; 257 SV *invoke_cb;
288 AV *invoke_av; 258 AV *invoke_av;
289 259
260 /* on_enter/on_leave */
261 AV *on_enter; AV *on_enter_xs;
262 AV *on_leave; AV *on_leave_xs;
263
264 /* swap_sv */
265 AV *swap_sv;
266
267 /* times */
268 coro_ts t_cpu, t_real;
269
290 /* linked list */ 270 /* linked list */
291 struct coro *next, *prev; 271 struct coro *next, *prev;
292}; 272};
293 273
294typedef struct coro *Coro__State; 274typedef struct coro *Coro__State;
295typedef struct coro *Coro__State_or_hashref; 275typedef struct coro *Coro__State_or_hashref;
296 276
297/* the following variables are effectively part of the perl context */ 277/* the following variables are effectively part of the perl context */
298/* and get copied between struct coro and these variables */ 278/* and get copied between struct coro and these variables */
299/* the mainr easonw e don't support windows process emulation */ 279/* the main reason we don't support windows process emulation */
300static struct CoroSLF slf_frame; /* the current slf frame */ 280static struct CoroSLF slf_frame; /* the current slf frame */
301 281
302/** Coro ********************************************************************/ 282/** Coro ********************************************************************/
303 283
304#define PRIO_MAX 3 284#define CORO_PRIO_MAX 3
305#define PRIO_HIGH 1 285#define CORO_PRIO_HIGH 1
306#define PRIO_NORMAL 0 286#define CORO_PRIO_NORMAL 0
307#define PRIO_LOW -1 287#define CORO_PRIO_LOW -1
308#define PRIO_IDLE -3 288#define CORO_PRIO_IDLE -3
309#define PRIO_MIN -4 289#define CORO_PRIO_MIN -4
310 290
311/* for Coro.pm */ 291/* for Coro.pm */
312static SV *coro_current; 292static SV *coro_current;
313static SV *coro_readyhook; 293static SV *coro_readyhook;
314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 294static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315static CV *cv_coro_run, *cv_coro_terminate; 295static CV *cv_coro_run;
316static struct coro *coro_first; 296static struct coro *coro_first;
317#define coro_nready coroapi.nready 297#define coro_nready coroapi.nready
318 298
299/** JIT *********************************************************************/
300
301#if CORO_JIT
302 /* APPLE doesn't have mmap though */
303 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
304 #ifndef CORO_JIT_TYPE
305 #if ECB_AMD64 && CORO_JIT_UNIXY
306 #define CORO_JIT_TYPE "amd64-unix"
307 #elif __i386 && CORO_JIT_UNIXY
308 #define CORO_JIT_TYPE "x86-unix"
309 #endif
310 #endif
311#endif
312
313#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
314 #undef CORO_JIT
315#endif
316
317#if CORO_JIT
318 typedef void (*load_save_perl_slots_type)(perl_slots *);
319 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
320#endif
321
322/** Coro::Select ************************************************************/
323
324static OP *(*coro_old_pp_sselect) (pTHX);
325static SV *coro_select_select;
326
327/* horrible hack, but if it works... */
328static OP *
329coro_pp_sselect (pTHX)
330{
331 dSP;
332 PUSHMARK (SP - 4); /* fake argument list */
333 XPUSHs (coro_select_select);
334 PUTBACK;
335
336 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
337 PL_op->op_flags |= OPf_STACKED;
338 PL_op->op_private = 0;
339 return PL_ppaddr [OP_ENTERSUB](aTHX);
340}
341
342/** time stuff **************************************************************/
343
344#ifdef HAS_GETTIMEOFDAY
345
346ecb_inline void
347coro_u2time (pTHX_ UV ret[2])
348{
349 struct timeval tv;
350 gettimeofday (&tv, 0);
351
352 ret [0] = tv.tv_sec;
353 ret [1] = tv.tv_usec;
354}
355
356ecb_inline double
357coro_nvtime (void)
358{
359 struct timeval tv;
360 gettimeofday (&tv, 0);
361
362 return tv.tv_sec + tv.tv_usec * 1e-6;
363}
364
365ecb_inline void
366time_init (pTHX)
367{
368 nvtime = coro_nvtime;
369 u2time = coro_u2time;
370}
371
372#else
373
374ecb_inline void
375time_init (pTHX)
376{
377 SV **svp;
378
379 require_pv ("Time/HiRes.pm");
380
381 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
382
383 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
384 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
385
386 nvtime = INT2PTR (double (*)(), SvIV (*svp));
387
388 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
389 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
390}
391
392#endif
393
319/** lowlevel stuff **********************************************************/ 394/** lowlevel stuff **********************************************************/
320 395
321static SV * 396static SV * ecb_noinline
322coro_get_sv (pTHX_ const char *name, int create) 397coro_get_sv (pTHX_ const char *name, int create)
323{ 398{
324#if PERL_VERSION_ATLEAST (5,10,0) 399#if PERL_VERSION_ATLEAST (5,10,0)
325 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 400 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
326 get_sv (name, create); 401 get_sv (name, create);
327#endif 402#endif
328 return get_sv (name, create); 403 return get_sv (name, create);
329} 404}
330 405
331static AV * 406static AV * ecb_noinline
332coro_get_av (pTHX_ const char *name, int create) 407coro_get_av (pTHX_ const char *name, int create)
333{ 408{
334#if PERL_VERSION_ATLEAST (5,10,0) 409#if PERL_VERSION_ATLEAST (5,10,0)
335 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 410 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
336 get_av (name, create); 411 get_av (name, create);
337#endif 412#endif
338 return get_av (name, create); 413 return get_av (name, create);
339} 414}
340 415
341static HV * 416static HV * ecb_noinline
342coro_get_hv (pTHX_ const char *name, int create) 417coro_get_hv (pTHX_ const char *name, int create)
343{ 418{
344#if PERL_VERSION_ATLEAST (5,10,0) 419#if PERL_VERSION_ATLEAST (5,10,0)
345 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 420 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
346 get_hv (name, create); 421 get_hv (name, create);
347#endif 422#endif
348 return get_hv (name, create); 423 return get_hv (name, create);
349} 424}
350 425
351/* may croak */ 426ecb_inline void
352INLINE CV * 427coro_times_update (void)
353coro_sv_2cv (pTHX_ SV *sv)
354{ 428{
355 HV *st; 429#ifdef coro_clock_gettime
356 GV *gvp; 430 struct timespec ts;
357 return sv_2cv (sv, &st, &gvp, 0); 431
432 ts.tv_sec = ts.tv_nsec = 0;
433 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
434 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
435
436 ts.tv_sec = ts.tv_nsec = 0;
437 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
438 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
439#else
440 dTHX;
441 UV tv[2];
442
443 u2time (aTHX_ tv);
444 time_real [0] = tv [0];
445 time_real [1] = tv [1] * 1000;
446#endif
447}
448
449ecb_inline void
450coro_times_add (struct coro *c)
451{
452 c->t_real [1] += time_real [1];
453 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
454 c->t_real [0] += time_real [0];
455
456 c->t_cpu [1] += time_cpu [1];
457 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
458 c->t_cpu [0] += time_cpu [0];
459}
460
461ecb_inline void
462coro_times_sub (struct coro *c)
463{
464 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
465 c->t_real [1] -= time_real [1];
466 c->t_real [0] -= time_real [0];
467
468 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
469 c->t_cpu [1] -= time_cpu [1];
470 c->t_cpu [0] -= time_cpu [0];
358} 471}
359 472
360/*****************************************************************************/ 473/*****************************************************************************/
361/* magic glue */ 474/* magic glue */
362 475
363#define CORO_MAGIC_type_cv 26 476#define CORO_MAGIC_type_cv 26
364#define CORO_MAGIC_type_state PERL_MAGIC_ext 477#define CORO_MAGIC_type_state PERL_MAGIC_ext
365 478
366#define CORO_MAGIC_NN(sv, type) \ 479#define CORO_MAGIC_NN(sv, type) \
367 (expect_true (SvMAGIC (sv)->mg_type == type) \ 480 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
368 ? SvMAGIC (sv) \ 481 ? SvMAGIC (sv) \
369 : mg_find (sv, type)) 482 : mg_find (sv, type))
370 483
371#define CORO_MAGIC(sv, type) \ 484#define CORO_MAGIC(sv, type) \
372 (expect_true (SvMAGIC (sv)) \ 485 (ecb_expect_true (SvMAGIC (sv)) \
373 ? CORO_MAGIC_NN (sv, type) \ 486 ? CORO_MAGIC_NN (sv, type) \
374 : 0) 487 : 0)
375 488
376#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 489#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) 490#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
378 491
379INLINE struct coro * 492ecb_inline MAGIC *
380SvSTATE_ (pTHX_ SV *coro) 493SvSTATEhv_p (pTHX_ SV *coro)
381{ 494{
382 HV *stash;
383 MAGIC *mg; 495 MAGIC *mg;
384 496
497 if (ecb_expect_true (
498 SvTYPE (coro) == SVt_PVHV
499 && (mg = CORO_MAGIC_state (coro))
500 && mg->mg_virtual == &coro_state_vtbl
501 ))
502 return mg;
503
504 return 0;
505}
506
507ecb_inline struct coro *
508SvSTATE_ (pTHX_ SV *coro_sv)
509{
510 MAGIC *mg;
511
385 if (SvROK (coro)) 512 if (SvROK (coro_sv))
386 coro = SvRV (coro); 513 coro_sv = SvRV (coro_sv);
387 514
388 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 515 mg = SvSTATEhv_p (aTHX_ coro_sv);
516 if (!mg)
389 croak ("Coro::State object required"); 517 croak ("Coro::State object required");
390 518
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; 519 return (struct coro *)mg->mg_ptr;
401} 520}
402 521
403#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 522#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
404 523
… …
407#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 526#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
408 527
409/*****************************************************************************/ 528/*****************************************************************************/
410/* padlist management and caching */ 529/* padlist management and caching */
411 530
412static AV * 531ecb_inline PADLIST *
413coro_derive_padlist (pTHX_ CV *cv) 532coro_derive_padlist (pTHX_ CV *cv)
414{ 533{
415 AV *padlist = CvPADLIST (cv); 534 PADLIST *padlist = CvPADLIST (cv);
416 AV *newpadlist, *newpad; 535 PADLIST *newpadlist;
536 PADNAMELIST *padnames;
537 PAD *newpad;
538 PADOFFSET off = PadlistMAX (padlist) + 1;
417 539
418 newpadlist = newAV (); 540#if NEWPADAPI
541
542 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
543 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
544 while (!PadlistARRAY (padlist)[off - 1])
545 --off;
546
547 Perl_pad_push (aTHX_ padlist, off);
548
549 newpad = PadlistARRAY (padlist)[off];
550 PadlistARRAY (padlist)[off] = 0;
551
552#else
553
554#if PERL_VERSION_ATLEAST (5,10,0)
555 Perl_pad_push (aTHX_ padlist, off);
556#else
557 Perl_pad_push (aTHX_ padlist, off, 1);
558#endif
559
560 newpad = PadlistARRAY (padlist)[off];
561 PadlistMAX (padlist) = off - 1;
562
563#endif
564
565 newPADLIST (newpadlist);
566#if !PERL_VERSION_ATLEAST(5,15,3)
567 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
419 AvREAL_off (newpadlist); 568 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 569#endif
425 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
426 --AvFILLp (padlist);
427 570
428 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 571 /* Already extended to 2 elements by newPADLIST. */
429 av_store (newpadlist, 1, (SV *)newpad); 572 PadlistMAX (newpadlist) = 1;
573
574 padnames = PadlistNAMES (padlist);
575 ++PadnamelistREFCNT (padnames);
576 PadlistNAMES (newpadlist) = padnames;
577
578 PadlistARRAY (newpadlist)[1] = newpad;
430 579
431 return newpadlist; 580 return newpadlist;
432} 581}
433 582
434static void 583ecb_inline void
435free_padlist (pTHX_ AV *padlist) 584free_padlist (pTHX_ PADLIST *padlist)
436{ 585{
437 /* may be during global destruction */ 586 /* may be during global destruction */
438 if (!IN_DESTRUCT) 587 if (!IN_DESTRUCT)
439 { 588 {
440 I32 i = AvFILLp (padlist); 589 I32 i = PadlistMAX (padlist);
441 590
442 while (i > 0) /* special-case index 0 */ 591 while (i > 0) /* special-case index 0 */
443 { 592 {
444 /* we try to be extra-careful here */ 593 /* we try to be extra-careful here */
445 AV *av = (AV *)AvARRAY (padlist)[i--]; 594 PAD *pad = PadlistARRAY (padlist)[i--];
446 I32 j = AvFILLp (av);
447 595
596 if (pad)
597 {
598 I32 j = PadMAX (pad);
599
448 while (j >= 0) 600 while (j >= 0)
449 SvREFCNT_dec (AvARRAY (av)[j--]); 601 SvREFCNT_dec (PadARRAY (pad)[j--]);
450 602
451 AvFILLp (av) = -1; 603 PadMAX (pad) = -1;
452 SvREFCNT_dec (av); 604 SvREFCNT_dec (pad);
605 }
453 } 606 }
454 607
455 SvREFCNT_dec (AvARRAY (padlist)[0]); 608 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
456 609
610#if NEWPADAPI
611 Safefree (PadlistARRAY (padlist));
612 Safefree (padlist);
613#else
457 AvFILLp (padlist) = -1; 614 AvFILLp (padlist) = -1;
615 AvREAL_off (padlist);
458 SvREFCNT_dec ((SV*)padlist); 616 SvREFCNT_dec ((SV*)padlist);
617#endif
459 } 618 }
460} 619}
461 620
462static int 621static int
463coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 622coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464{ 623{
465 AV *padlist; 624 PADLIST *padlist;
466 AV *av = (AV *)mg->mg_obj; 625 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
626 size_t len = *(size_t *)mg->mg_ptr;
467 627
468 /* casting is fun. */ 628 /* perl manages to free our internal AV and _then_ call us */
469 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 629 if (IN_DESTRUCT)
630 return 0;
631
632 while (len--)
470 free_padlist (aTHX_ padlist); 633 free_padlist (aTHX_ padlists[len]);
471
472 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
473 634
474 return 0; 635 return 0;
475} 636}
476 637
477static MGVTBL coro_cv_vtbl = { 638static MGVTBL coro_cv_vtbl = {
478 0, 0, 0, 0, 639 0, 0, 0, 0,
479 coro_cv_free 640 coro_cv_free
480}; 641};
481 642
482/* the next two functions merely cache the padlists */ 643/* the next two functions merely cache the padlists */
483static void 644ecb_inline void
484get_padlist (pTHX_ CV *cv) 645get_padlist (pTHX_ CV *cv)
485{ 646{
486 MAGIC *mg = CORO_MAGIC_cv (cv); 647 MAGIC *mg = CORO_MAGIC_cv (cv);
487 AV *av; 648 size_t *lenp;
488 649
489 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 650 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
490 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 651 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
491 else 652 else
492 { 653 {
493#if CORO_PREFER_PERL_FUNCTIONS 654#if CORO_PREFER_PERL_FUNCTIONS
494 /* this is probably cleaner? but also slower! */ 655 /* this is probably cleaner? but also slower! */
495 /* in practise, it seems to be less stable */ 656 /* in practise, it seems to be less stable */
… …
501 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 662 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
502#endif 663#endif
503 } 664 }
504} 665}
505 666
506static void 667ecb_inline void
507put_padlist (pTHX_ CV *cv) 668put_padlist (pTHX_ CV *cv)
508{ 669{
509 MAGIC *mg = CORO_MAGIC_cv (cv); 670 MAGIC *mg = CORO_MAGIC_cv (cv);
510 AV *av;
511 671
512 if (expect_false (!mg)) 672 if (ecb_expect_false (!mg))
673 {
513 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 674 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
675 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
676 mg->mg_len = 1; /* so mg_free frees mg_ptr */
677 }
678 else
679 Renew (mg->mg_ptr,
680 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
681 char);
514 682
515 av = (AV *)mg->mg_obj; 683 ((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} 684}
522 685
523/** load & save, init *******************************************************/ 686/** load & save, init *******************************************************/
687
688ecb_inline void
689swap_sv (SV *a, SV *b)
690{
691 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
692 SV tmp;
693
694 /* swap sv_any */
695 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
696
697 /* swap sv_flags */
698 SvFLAGS (&tmp) = SvFLAGS (a);
699 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
700 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
701
702#if PERL_VERSION_ATLEAST (5,10,0)
703 /* perl 5.10 and later complicates this _quite_ a bit, but it also
704 * is much faster, so no quarrels here. alternatively, we could
705 * sv_upgrade to avoid this.
706 */
707 {
708 /* swap sv_u */
709 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
710
711 /* if SvANY points to the head, we need to adjust the pointers,
712 * as the pointer for a still points to b, and maybe vice versa.
713 */
714 #define svany_in_head(type) \
715 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
716
717 if (svany_in_head (SvTYPE (a)))
718 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
719
720 if (svany_in_head (SvTYPE (b)))
721 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
722 }
723#endif
724}
725
726/* swap sv heads, at least logically */
727static void
728swap_svs (pTHX_ Coro__State c)
729{
730 int i;
731
732 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
733 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
734}
735
736#define SWAP_SVS(coro) \
737 if (ecb_expect_false ((coro)->swap_sv)) \
738 swap_svs (aTHX_ (coro))
739
740static void
741on_enterleave_call (pTHX_ SV *cb);
524 742
525static void 743static void
526load_perl (pTHX_ Coro__State c) 744load_perl (pTHX_ Coro__State c)
527{ 745{
528 perl_slots *slot = c->slot; 746 perl_slots *slot = c->slot;
529 c->slot = 0; 747 c->slot = 0;
530 748
531 PL_mainstack = c->mainstack; 749 PL_mainstack = c->mainstack;
532 750
533 GvSV (PL_defgv) = slot->defsv; 751#if CORO_JIT
534 GvAV (PL_defgv) = slot->defav; 752 load_perl_slots (slot);
535 GvSV (PL_errgv) = slot->errsv; 753#else
536 GvSV (irsgv) = slot->irsgv;
537 GvHV (PL_hintgv) = slot->hinthv;
538
539 #define VAR(name,type) PL_ ## name = slot->name; 754 #define VARx(name,expr,type) expr = slot->name;
540 # include "state.h" 755 #include "state.h"
541 #undef VAR 756#endif
542 757
543 { 758 {
544 dSP; 759 dSP;
545 760
546 CV *cv; 761 CV *cv;
547 762
548 /* now do the ugly restore mess */ 763 /* now do the ugly restore mess */
549 while (expect_true (cv = (CV *)POPs)) 764 while (ecb_expect_true (cv = (CV *)POPs))
550 { 765 {
551 put_padlist (aTHX_ cv); /* mark this padlist as available */ 766 put_padlist (aTHX_ cv); /* mark this padlist as available */
552 CvDEPTH (cv) = PTR2IV (POPs); 767 CvDEPTH (cv) = PTR2IV (POPs);
553 CvPADLIST (cv) = (AV *)POPs; 768 CvPADLIST (cv) = (PADLIST *)POPs;
554 } 769 }
555 770
556 PUTBACK; 771 PUTBACK;
557 } 772 }
558 773
559 slf_frame = c->slf_frame; 774 slf_frame = c->slf_frame;
560 CORO_THROW = c->except; 775 CORO_THROW = c->except;
776
777 if (ecb_expect_false (enable_times))
778 {
779 if (ecb_expect_false (!times_valid))
780 coro_times_update ();
781
782 coro_times_sub (c);
783 }
784
785 if (ecb_expect_false (c->on_enter))
786 {
787 int i;
788
789 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
790 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
791 }
792
793 if (ecb_expect_false (c->on_enter_xs))
794 {
795 int i;
796
797 for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
798 ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
799 }
800
801 SWAP_SVS (c);
561} 802}
562 803
563static void 804static void
564save_perl (pTHX_ Coro__State c) 805save_perl (pTHX_ Coro__State c)
565{ 806{
807 SWAP_SVS (c);
808
809 if (ecb_expect_false (c->on_leave_xs))
810 {
811 int i;
812
813 for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
814 ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
815 }
816
817 if (ecb_expect_false (c->on_leave))
818 {
819 int i;
820
821 for (i = AvFILLp (c->on_leave); i >= 0; --i)
822 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
823 }
824
825 times_valid = 0;
826
827 if (ecb_expect_false (enable_times))
828 {
829 coro_times_update (); times_valid = 1;
830 coro_times_add (c);
831 }
832
566 c->except = CORO_THROW; 833 c->except = CORO_THROW;
567 c->slf_frame = slf_frame; 834 c->slf_frame = slf_frame;
568 835
569 { 836 {
570 dSP; 837 dSP;
… …
579 846
580 XPUSHs (Nullsv); 847 XPUSHs (Nullsv);
581 /* this loop was inspired by pp_caller */ 848 /* this loop was inspired by pp_caller */
582 for (;;) 849 for (;;)
583 { 850 {
584 while (expect_true (cxix >= 0)) 851 while (ecb_expect_true (cxix >= 0))
585 { 852 {
586 PERL_CONTEXT *cx = &ccstk[cxix--]; 853 PERL_CONTEXT *cx = &ccstk[cxix--];
587 854
588 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 855 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
589 { 856 {
590 CV *cv = cx->blk_sub.cv; 857 CV *cv = cx->blk_sub.cv;
591 858
592 if (expect_true (CvDEPTH (cv))) 859 if (ecb_expect_true (CvDEPTH (cv)))
593 { 860 {
594 EXTEND (SP, 3); 861 EXTEND (SP, 3);
595 PUSHs ((SV *)CvPADLIST (cv)); 862 PUSHs ((SV *)CvPADLIST (cv));
596 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 863 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
597 PUSHs ((SV *)cv); 864 PUSHs ((SV *)cv);
… …
600 get_padlist (aTHX_ cv); 867 get_padlist (aTHX_ cv);
601 } 868 }
602 } 869 }
603 } 870 }
604 871
605 if (expect_true (top_si->si_type == PERLSI_MAIN)) 872 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
606 break; 873 break;
607 874
608 top_si = top_si->si_prev; 875 top_si = top_si->si_prev;
609 ccstk = top_si->si_cxstack; 876 ccstk = top_si->si_cxstack;
610 cxix = top_si->si_cxix; 877 cxix = top_si->si_cxix;
… …
612 879
613 PUTBACK; 880 PUTBACK;
614 } 881 }
615 882
616 /* allocate some space on the context stack for our purposes */ 883 /* allocate some space on the context stack for our purposes */
617 /* we manually unroll here, as usually 2 slots is enough */ 884 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 { 885 {
622 int i; 886 unsigned int i;
887
623 for (i = 3; i < SLOT_COUNT; ++i) 888 for (i = 0; i < SLOT_COUNT; ++i)
624 CXINC; 889 CXINC;
625 } 890
626 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 891 cxstack_ix -= SLOT_COUNT; /* undo allocation */
892 }
627 893
628 c->mainstack = PL_mainstack; 894 c->mainstack = PL_mainstack;
629 895
630 { 896 {
631 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 897 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
632 898
633 slot->defav = GvAV (PL_defgv); 899#if CORO_JIT
634 slot->defsv = DEFSV; 900 save_perl_slots (slot);
635 slot->errsv = ERRSV; 901#else
636 slot->irsgv = GvSV (irsgv);
637 slot->hinthv = GvHV (PL_hintgv);
638
639 #define VAR(name,type) slot->name = PL_ ## name; 902 #define VARx(name,expr,type) slot->name = expr;
640 # include "state.h" 903 #include "state.h"
641 #undef VAR 904#endif
642 } 905 }
643} 906}
644 907
645/* 908/*
646 * allocate various perl stacks. This is almost an exact copy 909 * allocate various perl stacks. This is almost an exact copy
… …
652# define coro_init_stacks(thx) init_stacks () 915# define coro_init_stacks(thx) init_stacks ()
653#else 916#else
654static void 917static void
655coro_init_stacks (pTHX) 918coro_init_stacks (pTHX)
656{ 919{
657 PL_curstackinfo = new_stackinfo(32, 8); 920 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; 921 PL_curstackinfo->si_type = PERLSI_MAIN;
659 PL_curstack = PL_curstackinfo->si_stack; 922 PL_curstack = PL_curstackinfo->si_stack;
660 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 923 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
661 924
662 PL_stack_base = AvARRAY(PL_curstack); 925 PL_stack_base = AvARRAY(PL_curstack);
… …
677#endif 940#endif
678 941
679 New(54,PL_scopestack,8,I32); 942 New(54,PL_scopestack,8,I32);
680 PL_scopestack_ix = 0; 943 PL_scopestack_ix = 0;
681 PL_scopestack_max = 8; 944 PL_scopestack_max = 8;
945#if HAS_SCOPESTACK_NAME
946 New(54,PL_scopestack_name,8,const char*);
947#endif
682 948
683 New(54,PL_savestack,24,ANY); 949 New(54,PL_savestack,24,ANY);
684 PL_savestack_ix = 0; 950 PL_savestack_ix = 0;
685 PL_savestack_max = 24; 951 PL_savestack_max = 24;
686 952
… …
714 } 980 }
715 981
716 Safefree (PL_tmps_stack); 982 Safefree (PL_tmps_stack);
717 Safefree (PL_markstack); 983 Safefree (PL_markstack);
718 Safefree (PL_scopestack); 984 Safefree (PL_scopestack);
985#if HAS_SCOPESTACK_NAME
986 Safefree (PL_scopestack_name);
987#endif
719 Safefree (PL_savestack); 988 Safefree (PL_savestack);
720#if !PERL_VERSION_ATLEAST (5,10,0) 989#if !PERL_VERSION_ATLEAST (5,10,0)
721 Safefree (PL_retstack); 990 Safefree (PL_retstack);
722#endif 991#endif
723} 992}
… …
769#endif 1038#endif
770 1039
771/* 1040/*
772 * This overrides the default magic get method of %SIG elements. 1041 * 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 1042 * 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 1043 * and instead of trying to save and restore the hash elements (extremely slow),
775 * readback here. 1044 * 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 */ 1045 */
780static int 1046static int ecb_cold
781coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1047coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782{ 1048{
783 const char *s = MgPV_nolen_const (mg); 1049 const char *s = MgPV_nolen_const (mg);
784 1050
785 if (*s == '_') 1051 if (*s == '_')
786 { 1052 {
787 SV **svp = 0; 1053 SV **svp = 0;
788 1054
789 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1055 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
790 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1056 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
791 1057
792 if (svp) 1058 if (svp)
793 { 1059 {
794 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1060 SV *ssv;
1061
1062 if (!*svp)
1063 ssv = &PL_sv_undef;
1064 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1065 ssv = sv_2mortal (newRV_inc (*svp));
1066 else
1067 ssv = *svp;
1068
1069 sv_setsv (sv, ssv);
795 return 0; 1070 return 0;
796 } 1071 }
797 } 1072 }
798 1073
799 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1074 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
800} 1075}
801 1076
802static int 1077static int ecb_cold
803coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1078coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
804{ 1079{
805 const char *s = MgPV_nolen_const (mg); 1080 const char *s = MgPV_nolen_const (mg);
806 1081
807 if (*s == '_') 1082 if (*s == '_')
… …
821 } 1096 }
822 1097
823 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1098 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
824} 1099}
825 1100
826static int 1101static int ecb_cold
827coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1102coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
828{ 1103{
829 const char *s = MgPV_nolen_const (mg); 1104 const char *s = MgPV_nolen_const (mg);
830 1105
831 if (*s == '_') 1106 if (*s == '_')
… …
836 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1111 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837 1112
838 if (svp) 1113 if (svp)
839 { 1114 {
840 SV *old = *svp; 1115 SV *old = *svp;
841 *svp = newSVsv (sv); 1116 *svp = SvOK (sv) ? newSVsv (sv) : 0;
842 SvREFCNT_dec (old); 1117 SvREFCNT_dec (old);
843 return 0; 1118 return 0;
844 } 1119 }
845 } 1120 }
846 1121
… …
864slf_check_repeat (pTHX_ struct CoroSLF *frame) 1139slf_check_repeat (pTHX_ struct CoroSLF *frame)
865{ 1140{
866 return 1; 1141 return 1;
867} 1142}
868 1143
869static UNOP coro_setup_op; 1144static UNOP init_perl_op;
870 1145
871static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1146ecb_noinline static void /* noinline to keep it out of the transfer fast path */
872coro_setup (pTHX_ struct coro *coro) 1147init_perl (pTHX_ struct coro *coro)
873{ 1148{
874 /* 1149 /*
875 * emulate part of the perl startup here. 1150 * emulate part of the perl startup here.
876 */ 1151 */
877 coro_init_stacks (aTHX); 1152 coro_init_stacks (aTHX);
… …
884 PL_comppad_name_fill = 0; 1159 PL_comppad_name_fill = 0;
885 PL_comppad_name_floor = 0; 1160 PL_comppad_name_floor = 0;
886 PL_curpm = 0; 1161 PL_curpm = 0;
887 PL_curpad = 0; 1162 PL_curpad = 0;
888 PL_localizing = 0; 1163 PL_localizing = 0;
889 PL_dirty = 0;
890 PL_restartop = 0; 1164 PL_restartop = 0;
891#if PERL_VERSION_ATLEAST (5,10,0) 1165#if PERL_VERSION_ATLEAST (5,10,0)
892 PL_parser = 0; 1166 PL_parser = 0;
893#endif 1167#endif
894 PL_hints = 0; 1168 PL_hints = 0;
895 1169
896 /* recreate the die/warn hooks */ 1170 /* recreate the die/warn hooks */
897 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1171 PL_diehook = SvREFCNT_inc (rv_diehook);
898 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1172 PL_warnhook = SvREFCNT_inc (rv_warnhook);
899 1173
900 GvSV (PL_defgv) = newSV (0); 1174 GvSV (PL_defgv) = newSV (0);
901 GvAV (PL_defgv) = coro->args; coro->args = 0; 1175 GvAV (PL_defgv) = coro->args; coro->args = 0;
902 GvSV (PL_errgv) = newSV (0); 1176 GvSV (PL_errgv) = newSV (0);
903 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1177 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
904 GvHV (PL_hintgv) = 0; 1178 GvHV (PL_hintgv) = newHV ();
1179#if PERL_VERSION_ATLEAST (5,10,0)
1180 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1181#endif
905 PL_rs = newSVsv (GvSV (irsgv)); 1182 PL_rs = newSVsv (GvSV (irsgv));
906 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1183 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
907 1184
908 { 1185 {
909 dSP; 1186 dSP;
… …
924 /* this newly created coroutine might be run on an existing cctx which most 1201 /* 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. 1202 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
926 */ 1203 */
927 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1204 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 */ 1205 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1206 slf_frame.destroy = 0;
929 1207
930 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1208 /* 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; 1209 init_perl_op.op_next = PL_op;
932 coro_setup_op.op_type = OP_ENTERSUB; 1210 init_perl_op.op_type = OP_ENTERSUB;
933 coro_setup_op.op_ppaddr = pp_slf; 1211 init_perl_op.op_ppaddr = pp_slf;
934 /* no flags etc. required, as an init function won't be called */ 1212 /* no flags etc. required, as an init function won't be called */
935 1213
936 PL_op = (OP *)&coro_setup_op; 1214 PL_op = (OP *)&init_perl_op;
937 1215
938 /* copy throw, in case it was set before coro_setup */ 1216 /* copy throw, in case it was set before init_perl */
939 CORO_THROW = coro->except; 1217 CORO_THROW = coro->except;
940}
941 1218
1219 SWAP_SVS (coro);
1220
1221 if (ecb_expect_false (enable_times))
1222 {
1223 coro_times_update ();
1224 coro_times_sub (coro);
1225 }
1226}
1227
942static void 1228static void
943coro_destruct_perl (pTHX_ struct coro *coro) 1229coro_unwind_stacks (pTHX)
944{ 1230{
945 if (!IN_DESTRUCT) 1231 if (!IN_DESTRUCT)
946 { 1232 {
947 /* restore all saved variables and stuff */ 1233 /* restore all saved variables and stuff */
948 LEAVE_SCOPE (0); 1234 LEAVE_SCOPE (0);
… …
956 POPSTACK_TO (PL_mainstack); 1242 POPSTACK_TO (PL_mainstack);
957 1243
958 /* unwind main stack */ 1244 /* unwind main stack */
959 dounwind (-1); 1245 dounwind (-1);
960 } 1246 }
1247}
961 1248
962 SvREFCNT_dec (GvSV (PL_defgv)); 1249static void
963 SvREFCNT_dec (GvAV (PL_defgv)); 1250destroy_perl (pTHX_ struct coro *coro)
964 SvREFCNT_dec (GvSV (PL_errgv)); 1251{
965 SvREFCNT_dec (PL_defoutgv); 1252 SV *svf [9];
966 SvREFCNT_dec (PL_rs);
967 SvREFCNT_dec (GvSV (irsgv));
968 SvREFCNT_dec (GvHV (PL_hintgv));
969 1253
970 SvREFCNT_dec (PL_diehook);
971 SvREFCNT_dec (PL_warnhook);
972 1254 {
1255 SV *old_current = SvRV (coro_current);
1256 struct coro *current = SvSTATE (old_current);
1257
1258 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1259
1260 save_perl (aTHX_ current);
1261
1262 /* this will cause transfer_check to croak on block*/
1263 SvRV_set (coro_current, (SV *)coro->hv);
1264
1265 load_perl (aTHX_ coro);
1266
1267 coro_unwind_stacks (aTHX);
1268
1269 /* restore swapped sv's */
1270 SWAP_SVS (coro);
1271
1272 coro_destruct_stacks (aTHX);
1273
1274 /* now save some sv's to be free'd later */
1275 svf [0] = GvSV (PL_defgv);
1276 svf [1] = (SV *)GvAV (PL_defgv);
1277 svf [2] = GvSV (PL_errgv);
1278 svf [3] = (SV *)PL_defoutgv;
1279 svf [4] = PL_rs;
1280 svf [5] = GvSV (irsgv);
1281 svf [6] = (SV *)GvHV (PL_hintgv);
1282 svf [7] = PL_diehook;
1283 svf [8] = PL_warnhook;
1284 assert (9 == sizeof (svf) / sizeof (*svf));
1285
1286 SvRV_set (coro_current, old_current);
1287
1288 load_perl (aTHX_ current);
1289 }
1290
1291 {
1292 unsigned int i;
1293
1294 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1295 SvREFCNT_dec (svf [i]);
1296
973 SvREFCNT_dec (coro->saved_deffh); 1297 SvREFCNT_dec (coro->saved_deffh);
974 SvREFCNT_dec (coro->rouse_cb); 1298 SvREFCNT_dec (coro->rouse_cb);
975 SvREFCNT_dec (coro->invoke_cb); 1299 SvREFCNT_dec (coro->invoke_cb);
976 SvREFCNT_dec (coro->invoke_av); 1300 SvREFCNT_dec (coro->invoke_av);
977 1301 SvREFCNT_dec (coro->on_enter_xs);
978 coro_destruct_stacks (aTHX); 1302 SvREFCNT_dec (coro->on_leave_xs);
1303 }
979} 1304}
980 1305
981INLINE void 1306ecb_inline void
982free_coro_mortal (pTHX) 1307free_coro_mortal (pTHX)
983{ 1308{
984 if (expect_true (coro_mortal)) 1309 if (ecb_expect_true (coro_mortal))
985 { 1310 {
986 SvREFCNT_dec (coro_mortal); 1311 SvREFCNT_dec ((SV *)coro_mortal);
987 coro_mortal = 0; 1312 coro_mortal = 0;
988 } 1313 }
989} 1314}
990 1315
991static int 1316static int
… …
1045 1370
1046 if (PL_curcop != &PL_compiling) 1371 if (PL_curcop != &PL_compiling)
1047 { 1372 {
1048 SV **cb; 1373 SV **cb;
1049 1374
1050 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) 1375 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1051 { 1376 {
1052 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1377 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1053 1378
1054 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1379 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1055 { 1380 {
… …
1124 1449
1125 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1450 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1126} 1451}
1127 1452
1128/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1453/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1129static void NOINLINE 1454static void ecb_noinline
1130cctx_prepare (pTHX) 1455cctx_prepare (pTHX)
1131{ 1456{
1132 PL_top_env = &PL_start_env; 1457 PL_top_env = &PL_start_env;
1133 1458
1134 if (cctx_current->flags & CC_TRACE) 1459 if (cctx_current->flags & CC_TRACE)
… …
1145 slf_frame.prepare = slf_prepare_set_stacklevel; 1470 slf_frame.prepare = slf_prepare_set_stacklevel;
1146 slf_frame.check = slf_check_set_stacklevel; 1471 slf_frame.check = slf_check_set_stacklevel;
1147} 1472}
1148 1473
1149/* the tail of transfer: execute stuff we can only do after a transfer */ 1474/* the tail of transfer: execute stuff we can only do after a transfer */
1150INLINE void 1475ecb_inline void
1151transfer_tail (pTHX) 1476transfer_tail (pTHX)
1152{ 1477{
1153 free_coro_mortal (aTHX); 1478 free_coro_mortal (aTHX);
1479}
1480
1481/* try to exit the same way perl's main function would do */
1482/* we do not bother resetting the environment or other things *7
1483/* that are not, uhm, essential */
1484/* this obviously also doesn't work when perl is embedded */
1485static void ecb_noinline ecb_cold
1486perlish_exit (pTHX)
1487{
1488 int exitstatus = perl_destruct (PL_curinterp);
1489 perl_free (PL_curinterp);
1490 exit (exitstatus);
1154} 1491}
1155 1492
1156/* 1493/*
1157 * this is a _very_ stripped down perl interpreter ;) 1494 * this is a _very_ stripped down perl interpreter ;)
1158 */ 1495 */
… …
1180 /* somebody or something will hit me for both perl_run and PL_restartop */ 1517 /* somebody or something will hit me for both perl_run and PL_restartop */
1181 PL_restartop = PL_op; 1518 PL_restartop = PL_op;
1182 perl_run (PL_curinterp); 1519 perl_run (PL_curinterp);
1183 /* 1520 /*
1184 * Unfortunately, there is no way to get at the return values of the 1521 * Unfortunately, there is no way to get at the return values of the
1185 * coro body here, as perl_run destroys these 1522 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1523 * runtime errors here, as this is just a random interpreter, not a thread.
1186 */ 1524 */
1187 1525
1188 /* 1526 /*
1189 * If perl-run returns we assume exit() was being called or the coro 1527 * 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) 1528 * 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 1529 * 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" 1530 * 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 */ 1531 */
1197 PL_top_env = main_top_env; 1532 perlish_exit (aTHX);
1198 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1199 } 1533 }
1200} 1534}
1201 1535
1202static coro_cctx * 1536static coro_cctx *
1203cctx_new () 1537cctx_new (void)
1204{ 1538{
1205 coro_cctx *cctx; 1539 coro_cctx *cctx;
1206 1540
1207 ++cctx_count; 1541 ++cctx_count;
1208 New (0, cctx, 1, coro_cctx); 1542 New (0, cctx, 1, coro_cctx);
… …
1214 return cctx; 1548 return cctx;
1215} 1549}
1216 1550
1217/* create a new cctx only suitable as source */ 1551/* create a new cctx only suitable as source */
1218static coro_cctx * 1552static coro_cctx *
1219cctx_new_empty () 1553cctx_new_empty (void)
1220{ 1554{
1221 coro_cctx *cctx = cctx_new (); 1555 coro_cctx *cctx = cctx_new ();
1222 1556
1223 cctx->sptr = 0; 1557 cctx->stack.sptr = 0;
1224 coro_create (&cctx->cctx, 0, 0, 0, 0); 1558 coro_create (&cctx->cctx, 0, 0, 0, 0);
1225 1559
1226 return cctx; 1560 return cctx;
1227} 1561}
1228 1562
1229/* create a new cctx suitable as destination/running a perl interpreter */ 1563/* create a new cctx suitable as destination/running a perl interpreter */
1230static coro_cctx * 1564static coro_cctx *
1231cctx_new_run () 1565cctx_new_run (void)
1232{ 1566{
1233 coro_cctx *cctx = cctx_new (); 1567 coro_cctx *cctx = cctx_new ();
1234 void *stack_start;
1235 size_t stack_size;
1236 1568
1237#if HAVE_MMAP 1569 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 } 1570 {
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."); 1571 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1260 _exit (EXIT_FAILURE); 1572 _exit (EXIT_FAILURE);
1261 }
1262
1263 stack_start = cctx->sptr;
1264 stack_size = cctx->ssize;
1265 } 1573 }
1266 1574
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); 1575 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1272 1576
1273 return cctx; 1577 return cctx;
1274} 1578}
1275 1579
1276static void 1580static void
1277cctx_destroy (coro_cctx *cctx) 1581cctx_destroy (coro_cctx *cctx)
1278{ 1582{
1279 if (!cctx) 1583 if (!cctx)
1280 return; 1584 return;
1281 1585
1282 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1586 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1283 1587
1284 --cctx_count; 1588 --cctx_count;
1285 coro_destroy (&cctx->cctx); 1589 coro_destroy (&cctx->cctx);
1286 1590
1287 /* coro_transfer creates new, empty cctx's */ 1591 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 1592
1302 Safefree (cctx); 1593 Safefree (cctx);
1303} 1594}
1304 1595
1305/* wether this cctx should be destructed */ 1596/* wether this cctx should be destructed */
1306#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1597#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1307 1598
1308static coro_cctx * 1599static coro_cctx *
1309cctx_get (pTHX) 1600cctx_get (pTHX)
1310{ 1601{
1311 while (expect_true (cctx_first)) 1602 while (ecb_expect_true (cctx_first))
1312 { 1603 {
1313 coro_cctx *cctx = cctx_first; 1604 coro_cctx *cctx = cctx_first;
1314 cctx_first = cctx->next; 1605 cctx_first = cctx->next;
1315 --cctx_idle; 1606 --cctx_idle;
1316 1607
1317 if (expect_true (!CCTX_EXPIRED (cctx))) 1608 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1318 return cctx; 1609 return cctx;
1319 1610
1320 cctx_destroy (cctx); 1611 cctx_destroy (cctx);
1321 } 1612 }
1322 1613
… …
1324} 1615}
1325 1616
1326static void 1617static void
1327cctx_put (coro_cctx *cctx) 1618cctx_put (coro_cctx *cctx)
1328{ 1619{
1329 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1620 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1330 1621
1331 /* free another cctx if overlimit */ 1622 /* free another cctx if overlimit */
1332 if (expect_false (cctx_idle >= cctx_max_idle)) 1623 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1333 { 1624 {
1334 coro_cctx *first = cctx_first; 1625 coro_cctx *first = cctx_first;
1335 cctx_first = first->next; 1626 cctx_first = first->next;
1336 --cctx_idle; 1627 --cctx_idle;
1337 1628
… …
1348static void 1639static void
1349transfer_check (pTHX_ struct coro *prev, struct coro *next) 1640transfer_check (pTHX_ struct coro *prev, struct coro *next)
1350{ 1641{
1351 /* TODO: throwing up here is considered harmful */ 1642 /* TODO: throwing up here is considered harmful */
1352 1643
1353 if (expect_true (prev != next)) 1644 if (ecb_expect_true (prev != next))
1354 { 1645 {
1355 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1646 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,"); 1647 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1357 1648
1358 if (expect_false (next->flags & CF_RUNNING)) 1649 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,"); 1650 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1363 1651
1364#if !PERL_VERSION_ATLEAST (5,10,0) 1652#if !PERL_VERSION_ATLEAST (5,10,0)
1365 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1653 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,"); 1654 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1367#endif 1655#endif
1368 } 1656 }
1369} 1657}
1370 1658
1371/* always use the TRANSFER macro */ 1659/* always use the TRANSFER macro */
1372static void NOINLINE /* noinline so we have a fixed stackframe */ 1660static void ecb_noinline /* noinline so we have a fixed stackframe */
1373transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1661transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1374{ 1662{
1375 dSTACKLEVEL; 1663 dSTACKLEVEL;
1376 1664
1377 /* sometimes transfer is only called to set idle_sp */ 1665 /* sometimes transfer is only called to set idle_sp */
1378 if (expect_false (!prev)) 1666 if (ecb_expect_false (!prev))
1379 { 1667 {
1380 cctx_current->idle_sp = STACKLEVEL; 1668 cctx_current->idle_sp = STACKLEVEL;
1381 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1669 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1382 } 1670 }
1383 else if (expect_true (prev != next)) 1671 else if (ecb_expect_true (prev != next))
1384 { 1672 {
1385 coro_cctx *cctx_prev; 1673 coro_cctx *cctx_prev;
1386 1674
1387 if (expect_false (prev->flags & CF_NEW)) 1675 if (ecb_expect_false (prev->flags & CF_NEW))
1388 { 1676 {
1389 /* create a new empty/source context */ 1677 /* create a new empty/source context */
1390 prev->flags &= ~CF_NEW; 1678 prev->flags &= ~CF_NEW;
1391 prev->flags |= CF_RUNNING; 1679 prev->flags |= CF_RUNNING;
1392 } 1680 }
… …
1395 next->flags |= CF_RUNNING; 1683 next->flags |= CF_RUNNING;
1396 1684
1397 /* first get rid of the old state */ 1685 /* first get rid of the old state */
1398 save_perl (aTHX_ prev); 1686 save_perl (aTHX_ prev);
1399 1687
1400 if (expect_false (next->flags & CF_NEW)) 1688 if (ecb_expect_false (next->flags & CF_NEW))
1401 { 1689 {
1402 /* need to start coroutine */ 1690 /* need to start coroutine */
1403 next->flags &= ~CF_NEW; 1691 next->flags &= ~CF_NEW;
1404 /* setup coroutine call */ 1692 /* setup coroutine call */
1405 coro_setup (aTHX_ next); 1693 init_perl (aTHX_ next);
1406 } 1694 }
1407 else 1695 else
1408 load_perl (aTHX_ next); 1696 load_perl (aTHX_ next);
1409 1697
1410 /* possibly untie and reuse the cctx */ 1698 /* possibly untie and reuse the cctx */
1411 if (expect_true ( 1699 if (ecb_expect_true (
1412 cctx_current->idle_sp == STACKLEVEL 1700 cctx_current->idle_sp == STACKLEVEL
1413 && !(cctx_current->flags & CC_TRACE) 1701 && !(cctx_current->flags & CC_TRACE)
1414 && !force_cctx 1702 && !force_cctx
1415 )) 1703 ))
1416 { 1704 {
1417 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1705 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1418 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1706 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1419 1707
1420 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1708 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1421 /* without this the next cctx_get might destroy the running cctx while still in use */ 1709 /* without this the next cctx_get might destroy the running cctx while still in use */
1422 if (expect_false (CCTX_EXPIRED (cctx_current))) 1710 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1423 if (expect_true (!next->cctx)) 1711 if (ecb_expect_true (!next->cctx))
1424 next->cctx = cctx_get (aTHX); 1712 next->cctx = cctx_get (aTHX);
1425 1713
1426 cctx_put (cctx_current); 1714 cctx_put (cctx_current);
1427 } 1715 }
1428 else 1716 else
1429 prev->cctx = cctx_current; 1717 prev->cctx = cctx_current;
1430 1718
1431 ++next->usecount; 1719 ++next->usecount;
1432 1720
1433 cctx_prev = cctx_current; 1721 cctx_prev = cctx_current;
1434 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1722 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1435 1723
1436 next->cctx = 0; 1724 next->cctx = 0;
1437 1725
1438 if (expect_false (cctx_prev != cctx_current)) 1726 if (ecb_expect_false (cctx_prev != cctx_current))
1439 { 1727 {
1440 cctx_prev->top_env = PL_top_env; 1728 cctx_prev->top_env = PL_top_env;
1441 PL_top_env = cctx_current->top_env; 1729 PL_top_env = cctx_current->top_env;
1442 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1730 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1443 } 1731 }
… …
1449#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1737#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1450#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1738#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1451 1739
1452/** high level stuff ********************************************************/ 1740/** high level stuff ********************************************************/
1453 1741
1742/* this function is actually Coro, not Coro::State, but we call it from here */
1743/* because it is convenient - but it hasn't been declared yet for that reason */
1454static int 1744static void
1745coro_call_on_destroy (pTHX_ struct coro *coro);
1746
1747static void
1455coro_state_destroy (pTHX_ struct coro *coro) 1748coro_state_destroy (pTHX_ struct coro *coro)
1456{ 1749{
1457 if (coro->flags & CF_DESTROYED) 1750 if (coro->flags & CF_ZOMBIE)
1458 return 0; 1751 return;
1459 1752
1460 if (coro->on_destroy)
1461 coro->on_destroy (aTHX_ coro); 1753 slf_destroy (aTHX_ coro);
1462 1754
1463 coro->flags |= CF_DESTROYED; 1755 coro->flags |= CF_ZOMBIE;
1464 1756
1465 if (coro->flags & CF_READY) 1757 if (coro->flags & CF_READY)
1466 { 1758 {
1467 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1759 /* reduce nready, as destroying a ready coro effectively unreadies it */
1468 /* alternative: look through all ready queues and remove the coro */ 1760 /* alternative: look through all ready queues and remove the coro */
1469 --coro_nready; 1761 --coro_nready;
1470 } 1762 }
1471 else 1763 else
1472 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1764 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1765
1766 if (coro->next) coro->next->prev = coro->prev;
1767 if (coro->prev) coro->prev->next = coro->next;
1768 if (coro == coro_first) coro_first = coro->next;
1473 1769
1474 if (coro->mainstack 1770 if (coro->mainstack
1475 && coro->mainstack != main_mainstack 1771 && coro->mainstack != main_mainstack
1476 && coro->slot 1772 && coro->slot
1477 && !PL_dirty) 1773 && !PL_dirty)
1478 {
1479 struct coro temp;
1480
1481 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1482
1483 save_perl (aTHX_ &temp);
1484 load_perl (aTHX_ coro);
1485
1486 coro_destruct_perl (aTHX_ coro); 1774 destroy_perl (aTHX_ coro);
1487
1488 load_perl (aTHX_ &temp);
1489
1490 coro->slot = 0;
1491 }
1492 1775
1493 cctx_destroy (coro->cctx); 1776 cctx_destroy (coro->cctx);
1494 SvREFCNT_dec (coro->startcv); 1777 SvREFCNT_dec (coro->startcv);
1495 SvREFCNT_dec (coro->args); 1778 SvREFCNT_dec (coro->args);
1779 SvREFCNT_dec (coro->swap_sv);
1496 SvREFCNT_dec (CORO_THROW); 1780 SvREFCNT_dec (CORO_THROW);
1497 1781
1498 if (coro->next) coro->next->prev = coro->prev; 1782 coro_call_on_destroy (aTHX_ coro);
1499 if (coro->prev) coro->prev->next = coro->next;
1500 if (coro == coro_first) coro_first = coro->next;
1501 1783
1502 return 1; 1784 /* more destruction mayhem in coro_state_free */
1503} 1785}
1504 1786
1505static int 1787static int
1506coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1788coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1507{ 1789{
1508 struct coro *coro = (struct coro *)mg->mg_ptr; 1790 struct coro *coro = (struct coro *)mg->mg_ptr;
1509 mg->mg_ptr = 0; 1791 mg->mg_ptr = 0;
1510 1792
1511 coro->hv = 0;
1512
1513 if (--coro->refcnt < 0)
1514 {
1515 coro_state_destroy (aTHX_ coro); 1793 coro_state_destroy (aTHX_ coro);
1794 SvREFCNT_dec (coro->on_destroy);
1795 SvREFCNT_dec (coro->status);
1796
1516 Safefree (coro); 1797 Safefree (coro);
1517 }
1518 1798
1519 return 0; 1799 return 0;
1520} 1800}
1521 1801
1522static int 1802static int ecb_cold
1523coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1803coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1524{ 1804{
1525 struct coro *coro = (struct coro *)mg->mg_ptr; 1805 /* called when perl clones the current process the slow way (windows process emulation) */
1526 1806 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1527 ++coro->refcnt; 1807 mg->mg_ptr = 0;
1808 mg->mg_virtual = 0;
1528 1809
1529 return 0; 1810 return 0;
1530} 1811}
1531 1812
1532static MGVTBL coro_state_vtbl = { 1813static MGVTBL coro_state_vtbl = {
… …
1555 1836
1556 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1837 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1557 TRANSFER (ta, 1); 1838 TRANSFER (ta, 1);
1558} 1839}
1559 1840
1560/*****************************************************************************/
1561/* gensub: simple closure generation utility */
1562
1563#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1564
1565/* create a closure from XS, returns a code reference */
1566/* the arg can be accessed via GENSUB_ARG from the callback */
1567/* the callback must use dXSARGS/XSRETURN */
1568static SV *
1569gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1570{
1571 CV *cv = (CV *)newSV (0);
1572
1573 sv_upgrade ((SV *)cv, SVt_PVCV);
1574
1575 CvANON_on (cv);
1576 CvISXSUB_on (cv);
1577 CvXSUB (cv) = xsub;
1578 GENSUB_ARG = arg;
1579
1580 return newRV_noinc ((SV *)cv);
1581}
1582
1583/** Coro ********************************************************************/ 1841/** Coro ********************************************************************/
1584 1842
1585INLINE void 1843ecb_inline void
1586coro_enq (pTHX_ struct coro *coro) 1844coro_enq (pTHX_ struct coro *coro)
1587{ 1845{
1588 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1846 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1589}
1590 1847
1591INLINE SV * 1848 SvREFCNT_inc_NN (coro->hv);
1849
1850 coro->next_ready = 0;
1851 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1852 ready [1] = coro;
1853}
1854
1855ecb_inline struct coro *
1592coro_deq (pTHX) 1856coro_deq (pTHX)
1593{ 1857{
1594 int prio; 1858 int prio;
1595 1859
1596 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1860 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1597 if (AvFILLp (coro_ready [prio]) >= 0) 1861 {
1598 return av_shift (coro_ready [prio]); 1862 struct coro **ready = coro_ready [prio];
1863
1864 if (ready [0])
1865 {
1866 struct coro *coro = ready [0];
1867 ready [0] = coro->next_ready;
1868 return coro;
1869 }
1870 }
1599 1871
1600 return 0; 1872 return 0;
1873}
1874
1875static void
1876invoke_sv_ready_hook_helper (void)
1877{
1878 dTHX;
1879 dSP;
1880
1881 ENTER;
1882 SAVETMPS;
1883
1884 PUSHMARK (SP);
1885 PUTBACK;
1886 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1887
1888 FREETMPS;
1889 LEAVE;
1601} 1890}
1602 1891
1603static int 1892static int
1604api_ready (pTHX_ SV *coro_sv) 1893api_ready (pTHX_ SV *coro_sv)
1605{ 1894{
1606 struct coro *coro;
1607 SV *sv_hook;
1608 void (*xs_hook)(void);
1609
1610 coro = SvSTATE (coro_sv); 1895 struct coro *coro = SvSTATE (coro_sv);
1611 1896
1612 if (coro->flags & CF_READY) 1897 if (coro->flags & CF_READY)
1613 return 0; 1898 return 0;
1614 1899
1615 coro->flags |= CF_READY; 1900 coro->flags |= CF_READY;
1616 1901
1617 sv_hook = coro_nready ? 0 : coro_readyhook;
1618 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1619
1620 coro_enq (aTHX_ coro); 1902 coro_enq (aTHX_ coro);
1621 ++coro_nready;
1622 1903
1623 if (sv_hook) 1904 if (!coro_nready++)
1624 { 1905 if (coroapi.readyhook)
1625 dSP; 1906 coroapi.readyhook ();
1626
1627 ENTER;
1628 SAVETMPS;
1629
1630 PUSHMARK (SP);
1631 PUTBACK;
1632 call_sv (sv_hook, G_VOID | G_DISCARD);
1633
1634 FREETMPS;
1635 LEAVE;
1636 }
1637
1638 if (xs_hook)
1639 xs_hook ();
1640 1907
1641 return 1; 1908 return 1;
1642} 1909}
1643 1910
1644static int 1911static int
… …
1646{ 1913{
1647 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1914 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1648} 1915}
1649 1916
1650/* expects to own a reference to next->hv */ 1917/* expects to own a reference to next->hv */
1651INLINE void 1918ecb_inline void
1652prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1919prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1653{ 1920{
1654 SV *prev_sv = SvRV (coro_current); 1921 SV *prev_sv = SvRV (coro_current);
1655 1922
1656 ta->prev = SvSTATE_hv (prev_sv); 1923 ta->prev = SvSTATE_hv (prev_sv);
… …
1667static void 1934static void
1668prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1935prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1669{ 1936{
1670 for (;;) 1937 for (;;)
1671 { 1938 {
1672 SV *next_sv = coro_deq (aTHX); 1939 struct coro *next = coro_deq (aTHX);
1673 1940
1674 if (expect_true (next_sv)) 1941 if (ecb_expect_true (next))
1675 { 1942 {
1676 struct coro *next = SvSTATE_hv (next_sv);
1677
1678 /* cannot transfer to destroyed coros, skip and look for next */ 1943 /* cannot transfer to destroyed coros, skip and look for next */
1679 if (expect_false (next->flags & CF_DESTROYED)) 1944 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1680 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1945 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1681 else 1946 else
1682 { 1947 {
1683 next->flags &= ~CF_READY; 1948 next->flags &= ~CF_READY;
1684 --coro_nready; 1949 --coro_nready;
1685 1950
… …
1691 { 1956 {
1692 /* nothing to schedule: call the idle handler */ 1957 /* nothing to schedule: call the idle handler */
1693 if (SvROK (sv_idle) 1958 if (SvROK (sv_idle)
1694 && SvOBJECT (SvRV (sv_idle))) 1959 && SvOBJECT (SvRV (sv_idle)))
1695 { 1960 {
1961 if (SvRV (sv_idle) == SvRV (coro_current))
1962 {
1963 require_pv ("Carp");
1964
1965 {
1966 dSP;
1967
1968 ENTER;
1969 SAVETMPS;
1970
1971 PUSHMARK (SP);
1972 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1973 PUTBACK;
1974 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1975
1976 FREETMPS;
1977 LEAVE;
1978 }
1979 }
1980
1696 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1981 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1697 api_ready (aTHX_ SvRV (sv_idle)); 1982 api_ready (aTHX_ SvRV (sv_idle));
1698 --coro_nready; 1983 --coro_nready;
1699 } 1984 }
1700 else 1985 else
1701 { 1986 {
1987 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1702 dSP; 1988 dSP;
1703 1989
1704 ENTER; 1990 ENTER;
1705 SAVETMPS; 1991 SAVETMPS;
1706 1992
… …
1713 } 1999 }
1714 } 2000 }
1715 } 2001 }
1716} 2002}
1717 2003
1718INLINE void 2004ecb_inline void
1719prepare_cede (pTHX_ struct coro_transfer_args *ta) 2005prepare_cede (pTHX_ struct coro_transfer_args *ta)
1720{ 2006{
1721 api_ready (aTHX_ coro_current); 2007 api_ready (aTHX_ coro_current);
1722 prepare_schedule (aTHX_ ta); 2008 prepare_schedule (aTHX_ ta);
1723} 2009}
1724 2010
1725INLINE void 2011ecb_inline void
1726prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2012prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1727{ 2013{
1728 SV *prev = SvRV (coro_current); 2014 SV *prev = SvRV (coro_current);
1729 2015
1730 if (coro_nready) 2016 if (coro_nready)
… …
1760{ 2046{
1761 struct coro_transfer_args ta; 2047 struct coro_transfer_args ta;
1762 2048
1763 prepare_cede (aTHX_ &ta); 2049 prepare_cede (aTHX_ &ta);
1764 2050
1765 if (expect_true (ta.prev != ta.next)) 2051 if (ecb_expect_true (ta.prev != ta.next))
1766 { 2052 {
1767 TRANSFER (ta, 1); 2053 TRANSFER (ta, 1);
1768 return 1; 2054 return 1;
1769 } 2055 }
1770 else 2056 else
… …
1813 coro->slot->runops = RUNOPS_DEFAULT; 2099 coro->slot->runops = RUNOPS_DEFAULT;
1814 } 2100 }
1815} 2101}
1816 2102
1817static void 2103static void
2104coro_push_av (pTHX_ AV *av, I32 gimme_v)
2105{
2106 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2107 {
2108 dSP;
2109
2110 if (gimme_v == G_SCALAR)
2111 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2112 else
2113 {
2114 int i;
2115 EXTEND (SP, AvFILLp (av) + 1);
2116
2117 for (i = 0; i <= AvFILLp (av); ++i)
2118 PUSHs (AvARRAY (av)[i]);
2119 }
2120
2121 PUTBACK;
2122 }
2123}
2124
2125static void
2126coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2127{
2128 if (!coro->on_destroy)
2129 coro->on_destroy = newAV ();
2130
2131 av_push (coro->on_destroy, cb);
2132}
2133
2134static void
2135slf_destroy_join (pTHX_ struct CoroSLF *frame)
2136{
2137 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2138}
2139
2140static int
2141slf_check_join (pTHX_ struct CoroSLF *frame)
2142{
2143 struct coro *coro = (struct coro *)frame->data;
2144
2145 if (!coro->status)
2146 return 1;
2147
2148 frame->destroy = 0;
2149
2150 coro_push_av (aTHX_ coro->status, GIMME_V);
2151
2152 SvREFCNT_dec ((SV *)coro->hv);
2153
2154 return 0;
2155}
2156
2157static void
2158slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2159{
2160 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2161
2162 if (items > 1)
2163 croak ("join called with too many arguments");
2164
2165 if (coro->status)
2166 frame->prepare = prepare_nop;
2167 else
2168 {
2169 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2170 frame->prepare = prepare_schedule;
2171 }
2172
2173 frame->check = slf_check_join;
2174 frame->destroy = slf_destroy_join;
2175 frame->data = (void *)coro;
2176 SvREFCNT_inc (coro->hv);
2177}
2178
2179static void
1818coro_call_on_destroy (pTHX_ struct coro *coro) 2180coro_call_on_destroy (pTHX_ struct coro *coro)
1819{ 2181{
1820 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2182 AV *od = coro->on_destroy;
1821 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1822 2183
1823 if (on_destroyp) 2184 if (!od)
1824 { 2185 return;
1825 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1826 2186
2187 coro->on_destroy = 0;
2188 sv_2mortal ((SV *)od);
2189
1827 while (AvFILLp (on_destroy) >= 0) 2190 while (AvFILLp (od) >= 0)
2191 {
2192 SV *cb = sv_2mortal (av_pop (od));
2193
2194 /* coro hv's (and only hv's at the moment) are supported as well */
2195 if (SvSTATEhv_p (aTHX_ cb))
2196 api_ready (aTHX_ cb);
2197 else
1828 { 2198 {
1829 dSP; /* don't disturb outer sp */ 2199 dSP; /* don't disturb outer sp */
1830 SV *cb = av_pop (on_destroy);
1831
1832 PUSHMARK (SP); 2200 PUSHMARK (SP);
1833 2201
1834 if (statusp) 2202 if (coro->status)
1835 { 2203 {
1836 int i; 2204 PUTBACK;
1837 AV *status = (AV *)SvRV (*statusp); 2205 coro_push_av (aTHX_ coro->status, G_ARRAY);
1838 EXTEND (SP, AvFILLp (status) + 1); 2206 SPAGAIN;
1839
1840 for (i = 0; i <= AvFILLp (status); ++i)
1841 PUSHs (AvARRAY (status)[i]);
1842 } 2207 }
1843 2208
1844 PUTBACK; 2209 PUTBACK;
1845 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2210 call_sv (cb, G_VOID | G_DISCARD);
1846 } 2211 }
1847 } 2212 }
1848} 2213}
1849 2214
1850static void 2215static void
1851slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2216coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1852{ 2217{
2218 AV *av;
2219
2220 if (coro->status)
2221 {
2222 av = coro->status;
2223 av_clear (av);
2224 }
2225 else
2226 av = coro->status = newAV ();
2227
2228 /* items are actually not so common, so optimise for this case */
2229 if (items)
2230 {
1853 int i; 2231 int i;
1854 HV *hv = (HV *)SvRV (coro_current);
1855 AV *av = newAV ();
1856 2232
1857 av_extend (av, items - 1); 2233 av_extend (av, items - 1);
2234
1858 for (i = 0; i < items; ++i) 2235 for (i = 0; i < items; ++i)
1859 av_push (av, SvREFCNT_inc_NN (arg [i])); 2236 av_push (av, SvREFCNT_inc_NN (arg [i]));
2237 }
2238}
1860 2239
1861 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2240static void
1862 2241slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2242{
1863 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2243 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1864 api_ready (aTHX_ sv_manager); 2244 api_ready (aTHX_ sv_manager);
1865 2245
1866 frame->prepare = prepare_schedule; 2246 frame->prepare = prepare_schedule;
1867 frame->check = slf_check_repeat; 2247 frame->check = slf_check_repeat;
2248
2249 /* as a minor optimisation, we could unwind all stacks here */
2250 /* but that puts extra pressure on pp_slf, and is not worth much */
2251 /*coro_unwind_stacks (aTHX);*/
2252}
2253
2254static void
2255slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2256{
2257 HV *coro_hv = (HV *)SvRV (coro_current);
2258
2259 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2260 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2261}
2262
2263static void
2264slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2265{
2266 HV *coro_hv;
2267 struct coro *coro;
2268
2269 if (items <= 0)
2270 croak ("Coro::cancel called without coro object,");
2271
2272 coro = SvSTATE (arg [0]);
2273 coro_hv = coro->hv;
2274
2275 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2276
2277 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2278 {
2279 /* coro currently busy cancelling something, so just notify it */
2280 coro->slf_frame.data = (void *)coro;
2281
2282 frame->prepare = prepare_nop;
2283 frame->check = slf_check_nop;
2284 }
2285 else if (coro_hv == (HV *)SvRV (coro_current))
2286 {
2287 /* cancelling the current coro is allowed, and equals terminate */
2288 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2289 }
2290 else
2291 {
2292 struct coro *self = SvSTATE_current;
2293
2294 if (!self)
2295 croak ("Coro::cancel called outside of thread content,");
2296
2297 /* otherwise we cancel directly, purely for speed reasons
2298 * unfortunately, this requires some magic trickery, as
2299 * somebody else could cancel us, so we have to fight the cancellation.
2300 * this is ugly, and hopefully fully worth the extra speed.
2301 * besides, I can't get the slow-but-safe version working...
2302 */
2303 slf_frame.data = 0;
2304 self->flags |= CF_NOCANCEL;
2305 coro_state_destroy (aTHX_ coro);
2306 self->flags &= ~CF_NOCANCEL;
2307
2308 if (slf_frame.data)
2309 {
2310 /* while we were busy we have been cancelled, so terminate */
2311 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2312 }
2313 else
2314 {
2315 frame->prepare = prepare_nop;
2316 frame->check = slf_check_nop;
2317 }
2318 }
2319}
2320
2321static int
2322slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2323{
2324 frame->prepare = 0;
2325 coro_unwind_stacks (aTHX);
2326
2327 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2328
2329 return 1;
2330}
2331
2332static int
2333safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2334{
2335 if (coro->cctx)
2336 croak ("coro inside C callback, unable to cancel at this time, caught");
2337
2338 if (coro->flags & CF_NEW)
2339 {
2340 coro_set_status (aTHX_ coro, arg, items);
2341 coro_state_destroy (aTHX_ coro);
2342 }
2343 else
2344 {
2345 if (!coro->slf_frame.prepare)
2346 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2347
2348 slf_destroy (aTHX_ coro);
2349
2350 coro_set_status (aTHX_ coro, arg, items);
2351 coro->slf_frame.prepare = prepare_nop;
2352 coro->slf_frame.check = slf_check_safe_cancel;
2353
2354 api_ready (aTHX_ (SV *)coro->hv);
2355 }
2356
2357 return 1;
1868} 2358}
1869 2359
1870/*****************************************************************************/ 2360/*****************************************************************************/
1871/* async pool handler */ 2361/* async pool handler */
1872 2362
… …
1903slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2393slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1904{ 2394{
1905 HV *hv = (HV *)SvRV (coro_current); 2395 HV *hv = (HV *)SvRV (coro_current);
1906 struct coro *coro = SvSTATE_hv ((SV *)hv); 2396 struct coro *coro = SvSTATE_hv ((SV *)hv);
1907 2397
1908 if (expect_true (coro->saved_deffh)) 2398 if (ecb_expect_true (coro->saved_deffh))
1909 { 2399 {
1910 /* subsequent iteration */ 2400 /* subsequent iteration */
1911 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2401 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1912 coro->saved_deffh = 0; 2402 coro->saved_deffh = 0;
1913 2403
1914 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2404 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1915 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2405 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1916 { 2406 {
1917 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2407 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1918 coro->invoke_av = newAV (); 2408 return;
1919
1920 frame->prepare = prepare_nop;
1921 } 2409 }
1922 else 2410 else
1923 { 2411 {
1924 av_clear (GvAV (PL_defgv)); 2412 av_clear (GvAV (PL_defgv));
1925 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2413 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1950 2438
1951static void 2439static void
1952coro_rouse_callback (pTHX_ CV *cv) 2440coro_rouse_callback (pTHX_ CV *cv)
1953{ 2441{
1954 dXSARGS; 2442 dXSARGS;
1955 SV *data = (SV *)GENSUB_ARG; 2443 SV *data = (SV *)S_GENSUB_ARG;
1956 2444
1957 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2445 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1958 { 2446 {
1959 /* first call, set args */ 2447 /* first call, set args */
2448 SV *coro = SvRV (data);
1960 AV *av = newAV (); 2449 AV *av = newAV ();
1961 SV *coro = SvRV (data);
1962 2450
1963 SvRV_set (data, (SV *)av); 2451 SvRV_set (data, (SV *)av);
1964 api_ready (aTHX_ coro);
1965 SvREFCNT_dec (coro);
1966 2452
1967 /* better take a full copy of the arguments */ 2453 /* better take a full copy of the arguments */
1968 while (items--) 2454 while (items--)
1969 av_store (av, items, newSVsv (ST (items))); 2455 av_store (av, items, newSVsv (ST (items)));
2456
2457 api_ready (aTHX_ coro);
2458 SvREFCNT_dec (coro);
1970 } 2459 }
1971 2460
1972 XSRETURN_EMPTY; 2461 XSRETURN_EMPTY;
1973} 2462}
1974 2463
1975static int 2464static int
1976slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2465slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1977{ 2466{
1978 SV *data = (SV *)frame->data; 2467 SV *data = (SV *)frame->data;
1979 2468
1980 if (CORO_THROW) 2469 if (CORO_THROW)
1981 return 0; 2470 return 0;
1982 2471
1983 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2472 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1984 return 1; 2473 return 1;
… …
1991 2480
1992 EXTEND (SP, AvFILLp (av) + 1); 2481 EXTEND (SP, AvFILLp (av) + 1);
1993 for (i = 0; i <= AvFILLp (av); ++i) 2482 for (i = 0; i <= AvFILLp (av); ++i)
1994 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2483 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1995 2484
1996 /* we have stolen the elements, so ste length to zero and free */ 2485 /* we have stolen the elements, so set length to zero and free */
1997 AvFILLp (av) = -1; 2486 AvFILLp (av) = -1;
1998 av_undef (av); 2487 av_undef (av);
1999 2488
2000 PUTBACK; 2489 PUTBACK;
2001 } 2490 }
… …
2020 cb = sv_2mortal (coro->rouse_cb); 2509 cb = sv_2mortal (coro->rouse_cb);
2021 coro->rouse_cb = 0; 2510 coro->rouse_cb = 0;
2022 } 2511 }
2023 2512
2024 if (!SvROK (cb) 2513 if (!SvROK (cb)
2025 || SvTYPE (SvRV (cb)) != SVt_PVCV 2514 || SvTYPE (SvRV (cb)) != SVt_PVCV
2026 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2515 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2027 croak ("Coro::rouse_wait called with illegal callback argument,"); 2516 croak ("Coro::rouse_wait called with illegal callback argument,");
2028 2517
2029 { 2518 {
2030 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2519 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2031 SV *data = (SV *)GENSUB_ARG; 2520 SV *data = (SV *)S_GENSUB_ARG;
2032 2521
2033 frame->data = (void *)data; 2522 frame->data = (void *)data;
2034 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2523 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2035 frame->check = slf_check_rouse_wait; 2524 frame->check = slf_check_rouse_wait;
2036 } 2525 }
… …
2040coro_new_rouse_cb (pTHX) 2529coro_new_rouse_cb (pTHX)
2041{ 2530{
2042 HV *hv = (HV *)SvRV (coro_current); 2531 HV *hv = (HV *)SvRV (coro_current);
2043 struct coro *coro = SvSTATE_hv (hv); 2532 struct coro *coro = SvSTATE_hv (hv);
2044 SV *data = newRV_inc ((SV *)hv); 2533 SV *data = newRV_inc ((SV *)hv);
2045 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2534 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2046 2535
2047 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2536 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2048 SvREFCNT_dec (data); /* magicext increases the refcount */ 2537 SvREFCNT_dec (data); /* magicext increases the refcount */
2049 2538
2050 SvREFCNT_dec (coro->rouse_cb); 2539 SvREFCNT_dec (coro->rouse_cb);
… …
2147static void 2636static void
2148slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2637slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2149{ 2638{
2150 frame->prepare = prepare_cede_notself; 2639 frame->prepare = prepare_cede_notself;
2151 frame->check = slf_check_nop; 2640 frame->check = slf_check_nop;
2641}
2642
2643/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2644static void
2645slf_destroy (pTHX_ struct coro *coro)
2646{
2647 struct CoroSLF frame = coro->slf_frame;
2648
2649 /*
2650 * The on_destroy below most likely is from an SLF call.
2651 * Since by definition the SLF call will not finish when we destroy
2652 * the coro, we will have to force-finish it here, otherwise
2653 * cleanup functions cannot call SLF functions.
2654 */
2655 coro->slf_frame.prepare = 0;
2656
2657 /* this callback is reserved for slf functions needing to do cleanup */
2658 if (frame.destroy && frame.prepare && !PL_dirty)
2659 frame.destroy (aTHX_ &frame);
2152} 2660}
2153 2661
2154/* 2662/*
2155 * these not obviously related functions are all rolled into one 2663 * these not obviously related functions are all rolled into one
2156 * function to increase chances that they all will call transfer with the same 2664 * function to increase chances that they all will call transfer with the same
… …
2163 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2671 I32 checkmark; /* mark SP to see how many elements check has pushed */
2164 2672
2165 /* set up the slf frame, unless it has already been set-up */ 2673 /* set up the slf frame, unless it has already been set-up */
2166 /* the latter happens when a new coro has been started */ 2674 /* the latter happens when a new coro has been started */
2167 /* or when a new cctx was attached to an existing coroutine */ 2675 /* or when a new cctx was attached to an existing coroutine */
2168 if (expect_true (!slf_frame.prepare)) 2676 if (ecb_expect_true (!slf_frame.prepare))
2169 { 2677 {
2170 /* first iteration */ 2678 /* first iteration */
2171 dSP; 2679 dSP;
2172 SV **arg = PL_stack_base + TOPMARK + 1; 2680 SV **arg = PL_stack_base + TOPMARK + 1;
2173 int items = SP - arg; /* args without function object */ 2681 int items = SP - arg; /* args without function object */
… …
2214 while (slf_frame.check (aTHX_ &slf_frame)); 2722 while (slf_frame.check (aTHX_ &slf_frame));
2215 2723
2216 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2724 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2217 2725
2218 /* exception handling */ 2726 /* exception handling */
2219 if (expect_false (CORO_THROW)) 2727 if (ecb_expect_false (CORO_THROW))
2220 { 2728 {
2221 SV *exception = sv_2mortal (CORO_THROW); 2729 SV *exception = sv_2mortal (CORO_THROW);
2222 2730
2223 CORO_THROW = 0; 2731 CORO_THROW = 0;
2224 sv_setsv (ERRSV, exception); 2732 sv_setsv (ERRSV, exception);
2225 croak (0); 2733 croak (0);
2226 } 2734 }
2227 2735
2228 /* return value handling - mostly like entersub */ 2736 /* return value handling - mostly like entersub */
2229 /* make sure we put something on the stack in scalar context */ 2737 /* make sure we put something on the stack in scalar context */
2230 if (GIMME_V == G_SCALAR) 2738 if (GIMME_V == G_SCALAR
2739 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2231 { 2740 {
2232 dSP; 2741 dSP;
2233 SV **bot = PL_stack_base + checkmark; 2742 SV **bot = PL_stack_base + checkmark;
2234 2743
2235 if (sp == bot) /* too few, push undef */ 2744 if (sp == bot) /* too few, push undef */
2236 bot [1] = &PL_sv_undef; 2745 bot [1] = &PL_sv_undef;
2237 else if (sp != bot + 1) /* too many, take last one */ 2746 else /* too many, take last one */
2238 bot [1] = *sp; 2747 bot [1] = *sp;
2239 2748
2240 SP = bot + 1; 2749 SP = bot + 1;
2241 2750
2242 PUTBACK; 2751 PUTBACK;
… …
2275 if (PL_op->op_flags & OPf_STACKED) 2784 if (PL_op->op_flags & OPf_STACKED)
2276 { 2785 {
2277 if (items > slf_arga) 2786 if (items > slf_arga)
2278 { 2787 {
2279 slf_arga = items; 2788 slf_arga = items;
2280 free (slf_argv); 2789 Safefree (slf_argv);
2281 slf_argv = malloc (slf_arga * sizeof (SV *)); 2790 New (0, slf_argv, slf_arga, SV *);
2282 } 2791 }
2283 2792
2284 slf_argc = items; 2793 slf_argc = items;
2285 2794
2286 for (i = 0; i < items; ++i) 2795 for (i = 0; i < items; ++i)
… …
2291 2800
2292 PL_op->op_ppaddr = pp_slf; 2801 PL_op->op_ppaddr = pp_slf;
2293 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2802 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2294 2803
2295 PL_op = (OP *)&slf_restore; 2804 PL_op = (OP *)&slf_restore;
2805}
2806
2807/*****************************************************************************/
2808/* dynamic wind */
2809
2810static void
2811on_enterleave_call (pTHX_ SV *cb)
2812{
2813 dSP;
2814
2815 PUSHSTACK;
2816
2817 PUSHMARK (SP);
2818 PUTBACK;
2819 call_sv (cb, G_VOID | G_DISCARD);
2820 SPAGAIN;
2821
2822 POPSTACK;
2823}
2824
2825static SV *
2826coro_avp_pop_and_free (pTHX_ AV **avp)
2827{
2828 AV *av = *avp;
2829 SV *res = av_pop (av);
2830
2831 if (AvFILLp (av) < 0)
2832 {
2833 *avp = 0;
2834 SvREFCNT_dec (av);
2835 }
2836
2837 return res;
2838}
2839
2840static void
2841coro_pop_on_enter (pTHX_ void *coro)
2842{
2843 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2844 SvREFCNT_dec (cb);
2845}
2846
2847static void
2848coro_pop_on_leave (pTHX_ void *coro)
2849{
2850 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2851 on_enterleave_call (aTHX_ sv_2mortal (cb));
2852}
2853
2854static void
2855enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
2856{
2857 if (!hook)
2858 return;
2859
2860 if (!*avp)
2861 {
2862 *avp = newAV ();
2863 AvREAL_off (*avp);
2864 }
2865
2866 av_push (*avp, (SV *)hook);
2867 av_push (*avp, (SV *)arg);
2868}
2869
2870static void
2871enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
2872{
2873 AV *av = *avp;
2874 int i;
2875
2876 if (!av)
2877 return;
2878
2879 for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
2880 if (AvARRAY (av)[i] == (SV *)hook)
2881 {
2882 if (execute)
2883 hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
2884
2885 memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
2886 av_pop (av);
2887 av_pop (av);
2888 break;
2889 }
2890
2891 if (AvFILLp (av) >= 0)
2892 {
2893 *avp = 0;
2894 SvREFCNT_dec_NN (av);
2895 }
2896}
2897
2898static void
2899api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2900{
2901 struct coro *coro = SvSTATE (coro_sv);
2902
2903 if (SvSTATE_current == coro)
2904 if (enter)
2905 enter (aTHX_ enter_arg);
2906
2907 enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
2908 enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
2909}
2910
2911static void
2912api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
2913{
2914 struct coro *coro = SvSTATE (coro_sv);
2915
2916 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2917 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
2918}
2919
2920static void
2921savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
2922{
2923 struct coro *coro = SvSTATE_current;
2924
2925 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2926}
2927
2928static void
2929savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
2930{
2931 struct coro *coro = SvSTATE_current;
2932
2933 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
2934}
2935
2936static void
2937api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2938{
2939 api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
2940
2941 /* this ought to be much cheaper than malloc + a single destructor call */
2942 if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
2943 if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2296} 2944}
2297 2945
2298/*****************************************************************************/ 2946/*****************************************************************************/
2299/* PerlIO::cede */ 2947/* PerlIO::cede */
2300 2948
… …
2302{ 2950{
2303 PerlIOBuf base; 2951 PerlIOBuf base;
2304 NV next, every; 2952 NV next, every;
2305} PerlIOCede; 2953} PerlIOCede;
2306 2954
2307static IV 2955static IV ecb_cold
2308PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2956PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2309{ 2957{
2310 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2958 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2311 2959
2312 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2960 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2313 self->next = nvtime () + self->every; 2961 self->next = nvtime () + self->every;
2314 2962
2315 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2963 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2316} 2964}
2317 2965
2318static SV * 2966static SV * ecb_cold
2319PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2967PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2320{ 2968{
2321 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2969 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2322 2970
2323 return newSVnv (self->every); 2971 return newSVnv (self->every);
… …
2374/* Coro::Semaphore & Coro::Signal */ 3022/* Coro::Semaphore & Coro::Signal */
2375 3023
2376static SV * 3024static SV *
2377coro_waitarray_new (pTHX_ int count) 3025coro_waitarray_new (pTHX_ int count)
2378{ 3026{
2379 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3027 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2380 AV *av = newAV (); 3028 AV *av = newAV ();
2381 SV **ary; 3029 SV **ary;
2382 3030
2383 /* unfortunately, building manually saves memory */ 3031 /* unfortunately, building manually saves memory */
2384 Newx (ary, 2, SV *); 3032 Newx (ary, 2, SV *);
… …
2430 XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); 3078 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2431 PUTBACK; 3079 PUTBACK;
2432 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); 3080 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2433 } 3081 }
2434 3082
2435 SvREFCNT_dec (cb); 3083 SvREFCNT_dec_NN (cb);
2436 } 3084 }
2437} 3085}
2438 3086
2439static void 3087static void
2440coro_semaphore_on_destroy (pTHX_ struct coro *coro) 3088coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2441{ 3089{
2442 /* call $sem->adjust (0) to possibly wake up some other waiters */ 3090 /* call $sem->adjust (0) to possibly wake up some other waiters */
2443 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 3091 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2444} 3092}
2445 3093
2446static int 3094static int
2447slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 3095slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2448{ 3096{
2449 AV *av = (AV *)frame->data; 3097 AV *av = (AV *)frame->data;
2450 SV *count_sv = AvARRAY (av)[0]; 3098 SV *count_sv = AvARRAY (av)[0];
3099 SV *coro_hv = SvRV (coro_current);
3100
3101 frame->destroy = 0;
2451 3102
2452 /* if we are about to throw, don't actually acquire the lock, just throw */ 3103 /* if we are about to throw, don't actually acquire the lock, just throw */
2453 if (CORO_THROW) 3104 if (ecb_expect_false (CORO_THROW))
3105 {
3106 /* we still might be responsible for the semaphore, so wake up others */
3107 coro_semaphore_adjust (aTHX_ av, 0);
3108
2454 return 0; 3109 return 0;
3110 }
2455 else if (SvIVX (count_sv) > 0) 3111 else if (SvIVX (count_sv) > 0)
2456 { 3112 {
2457 SvSTATE_current->on_destroy = 0;
2458
2459 if (acquire) 3113 if (acquire)
2460 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3114 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2461 else 3115 else
2462 coro_semaphore_adjust (aTHX_ av, 0); 3116 coro_semaphore_adjust (aTHX_ av, 0);
2463 3117
… …
2467 { 3121 {
2468 int i; 3122 int i;
2469 /* if we were woken up but can't down, we look through the whole */ 3123 /* if we were woken up but can't down, we look through the whole */
2470 /* waiters list and only add us if we aren't in there already */ 3124 /* waiters list and only add us if we aren't in there already */
2471 /* this avoids some degenerate memory usage cases */ 3125 /* this avoids some degenerate memory usage cases */
2472 3126 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2473 for (i = 1; i <= AvFILLp (av); ++i)
2474 if (AvARRAY (av)[i] == SvRV (coro_current)) 3127 if (AvARRAY (av)[i] == coro_hv)
2475 return 1; 3128 return 1;
2476 3129
2477 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3130 av_push (av, SvREFCNT_inc (coro_hv));
2478 return 1; 3131 return 1;
2479 } 3132 }
2480} 3133}
2481 3134
2482static int 3135static int
… …
2505 { 3158 {
2506 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3159 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2507 3160
2508 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3161 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2509 frame->prepare = prepare_schedule; 3162 frame->prepare = prepare_schedule;
2510
2511 /* to avoid race conditions when a woken-up coro gets terminated */ 3163 /* to avoid race conditions when a woken-up coro gets terminated */
2512 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3164 /* we arrange for a temporary on_destroy that calls adjust (0) */
2513 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3165 frame->destroy = coro_semaphore_destroy;
2514 } 3166 }
2515} 3167}
2516 3168
2517static void 3169static void
2518slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3170slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2526{ 3178{
2527 if (items >= 2) 3179 if (items >= 2)
2528 { 3180 {
2529 /* callback form */ 3181 /* callback form */
2530 AV *av = (AV *)SvRV (arg [0]); 3182 AV *av = (AV *)SvRV (arg [0]);
2531 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3183 SV *cb_cv = s_get_cv_croak (arg [1]);
2532 3184
2533 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3185 av_push (av, SvREFCNT_inc_NN (cb_cv));
2534 3186
2535 if (SvIVX (AvARRAY (av)[0]) > 0) 3187 if (SvIVX (AvARRAY (av)[0]) > 0)
2536 coro_semaphore_adjust (aTHX_ av, 0); 3188 coro_semaphore_adjust (aTHX_ av, 0);
2537 3189
2538 frame->prepare = prepare_nop; 3190 frame->prepare = prepare_nop;
… …
2562 AvARRAY (av)[0] = AvARRAY (av)[1]; 3214 AvARRAY (av)[0] = AvARRAY (av)[1];
2563 AvARRAY (av)[1] = cb; 3215 AvARRAY (av)[1] = cb;
2564 3216
2565 cb = av_shift (av); 3217 cb = av_shift (av);
2566 3218
3219 if (SvTYPE (cb) == SVt_PVCV)
3220 {
3221 dSP;
3222 PUSHMARK (SP);
3223 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3224 PUTBACK;
3225 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3226 }
3227 else
3228 {
2567 api_ready (aTHX_ cb); 3229 api_ready (aTHX_ cb);
2568 sv_setiv (cb, 0); /* signal waiter */ 3230 sv_setiv (cb, 0); /* signal waiter */
3231 }
3232
2569 SvREFCNT_dec (cb); 3233 SvREFCNT_dec_NN (cb);
2570 3234
2571 --count; 3235 --count;
2572 } 3236 }
2573} 3237}
2574 3238
… …
2582static void 3246static void
2583slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3247slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2584{ 3248{
2585 AV *av = (AV *)SvRV (arg [0]); 3249 AV *av = (AV *)SvRV (arg [0]);
2586 3250
3251 if (items >= 2)
3252 {
3253 SV *cb_cv = s_get_cv_croak (arg [1]);
3254 av_push (av, SvREFCNT_inc_NN (cb_cv));
3255
2587 if (SvIVX (AvARRAY (av)[0])) 3256 if (SvIVX (AvARRAY (av)[0]))
3257 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3258
3259 frame->prepare = prepare_nop;
3260 frame->check = slf_check_nop;
3261 }
3262 else if (SvIVX (AvARRAY (av)[0]))
2588 { 3263 {
2589 SvIVX (AvARRAY (av)[0]) = 0; 3264 SvIVX (AvARRAY (av)[0]) = 0;
2590 frame->prepare = prepare_nop; 3265 frame->prepare = prepare_nop;
2591 frame->check = slf_check_nop; 3266 frame->check = slf_check_nop;
2592 } 3267 }
2593 else 3268 else
2594 { 3269 {
2595 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3270 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2596 3271
2597 av_push (av, waiter); 3272 av_push (av, waiter);
2598 3273
2599 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3274 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2600 frame->prepare = prepare_schedule; 3275 frame->prepare = prepare_schedule;
… …
2618 3293
2619static void 3294static void
2620coro_aio_callback (pTHX_ CV *cv) 3295coro_aio_callback (pTHX_ CV *cv)
2621{ 3296{
2622 dXSARGS; 3297 dXSARGS;
2623 AV *state = (AV *)GENSUB_ARG; 3298 AV *state = (AV *)S_GENSUB_ARG;
2624 SV *coro = av_pop (state); 3299 SV *coro = av_pop (state);
2625 SV *data_sv = newSV (sizeof (struct io_state)); 3300 SV *data_sv = newSV (sizeof (struct io_state));
2626 3301
2627 av_extend (state, items - 1); 3302 av_extend (state, items - 1);
2628 3303
… …
2648 } 3323 }
2649 3324
2650 av_push (state, data_sv); 3325 av_push (state, data_sv);
2651 3326
2652 api_ready (aTHX_ coro); 3327 api_ready (aTHX_ coro);
2653 SvREFCNT_dec (coro); 3328 SvREFCNT_dec_NN (coro);
2654 SvREFCNT_dec ((AV *)state); 3329 SvREFCNT_dec_NN ((AV *)state);
2655} 3330}
2656 3331
2657static int 3332static int
2658slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3333slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2659{ 3334{
… …
2664 /* it quickly returns */ 3339 /* it quickly returns */
2665 if (CORO_THROW) 3340 if (CORO_THROW)
2666 return 0; 3341 return 0;
2667 3342
2668 /* one element that is an RV? repeat! */ 3343 /* one element that is an RV? repeat! */
2669 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3344 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2670 return 1; 3345 return 1;
2671 3346
2672 /* restore status */ 3347 /* restore status */
2673 { 3348 {
2674 SV *data_sv = av_pop (state); 3349 SV *data_sv = av_pop (state);
… …
2677 errno = data->errorno; 3352 errno = data->errorno;
2678 PL_laststype = data->laststype; 3353 PL_laststype = data->laststype;
2679 PL_laststatval = data->laststatval; 3354 PL_laststatval = data->laststatval;
2680 PL_statcache = data->statcache; 3355 PL_statcache = data->statcache;
2681 3356
2682 SvREFCNT_dec (data_sv); 3357 SvREFCNT_dec_NN (data_sv);
2683 } 3358 }
2684 3359
2685 /* push result values */ 3360 /* push result values */
2686 { 3361 {
2687 dSP; 3362 dSP;
… …
2713 dSP; 3388 dSP;
2714 3389
2715 static SV *prio_cv; 3390 static SV *prio_cv;
2716 static SV *prio_sv; 3391 static SV *prio_sv;
2717 3392
2718 if (expect_false (!prio_cv)) 3393 if (ecb_expect_false (!prio_cv))
2719 { 3394 {
2720 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3395 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2721 prio_sv = newSViv (0); 3396 prio_sv = newSViv (0);
2722 } 3397 }
2723 3398
… …
2742 3417
2743 for (i = 0; i < items; ++i) 3418 for (i = 0; i < items; ++i)
2744 PUSHs (arg [i]); 3419 PUSHs (arg [i]);
2745 3420
2746 /* now push the callback closure */ 3421 /* now push the callback closure */
2747 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3422 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2748 3423
2749 /* now call the AIO function - we assume our request is uncancelable */ 3424 /* now call the AIO function - we assume our request is uncancelable */
2750 PUTBACK; 3425 PUTBACK;
2751 call_sv ((SV *)req, G_VOID | G_DISCARD); 3426 call_sv ((SV *)req, G_VOID | G_DISCARD);
2752 } 3427 }
2753 3428
2754 /* now that the requets is going, we loop toll we have a result */ 3429 /* now that the request is going, we loop till we have a result */
2755 frame->data = (void *)state; 3430 frame->data = (void *)state;
2756 frame->prepare = prepare_schedule; 3431 frame->prepare = prepare_schedule;
2757 frame->check = slf_check_aio_req; 3432 frame->check = slf_check_aio_req;
2758} 3433}
2759 3434
… …
2771 3446
2772#if CORO_CLONE 3447#if CORO_CLONE
2773# include "clone.c" 3448# include "clone.c"
2774#endif 3449#endif
2775 3450
3451/*****************************************************************************/
3452
3453static SV *
3454coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3455{
3456 SV *coro_sv;
3457 struct coro *coro;
3458 MAGIC *mg;
3459 HV *hv;
3460 SV *cb;
3461 int i;
3462
3463 if (argc > 0)
3464 {
3465 cb = s_get_cv_croak (argv [0]);
3466
3467 if (!is_coro)
3468 {
3469 if (CvISXSUB (cb))
3470 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3471
3472 if (!CvROOT (cb))
3473 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3474 }
3475 }
3476
3477 Newz (0, coro, 1, struct coro);
3478 coro->args = newAV ();
3479 coro->flags = CF_NEW;
3480
3481 if (coro_first) coro_first->prev = coro;
3482 coro->next = coro_first;
3483 coro_first = coro;
3484
3485 coro->hv = hv = newHV ();
3486 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3487 mg->mg_flags |= MGf_DUP;
3488 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3489
3490 if (argc > 0)
3491 {
3492 av_extend (coro->args, argc + is_coro - 1);
3493
3494 if (is_coro)
3495 {
3496 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3497 cb = (SV *)cv_coro_run;
3498 }
3499
3500 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3501
3502 for (i = 1; i < argc; i++)
3503 av_push (coro->args, newSVsv (argv [i]));
3504 }
3505
3506 return coro_sv;
3507}
3508
3509#ifndef __cplusplus
3510ecb_cold XS(boot_Coro__State);
3511#endif
3512
3513#if CORO_JIT
3514
3515static void ecb_noinline ecb_cold
3516pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3517{
3518 dSP;
3519 AV *av = newAV ();
3520
3521 av_store (av, 3, newSVuv (d));
3522 av_store (av, 2, newSVuv (c));
3523 av_store (av, 1, newSVuv (b));
3524 av_store (av, 0, newSVuv (a));
3525
3526 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3527
3528 PUTBACK;
3529}
3530
3531static void ecb_noinline ecb_cold
3532jit_init (pTHX)
3533{
3534 dSP;
3535 SV *load, *save;
3536 char *map_base;
3537 char *load_ptr, *save_ptr;
3538 STRLEN load_len, save_len, map_len;
3539 int count;
3540
3541 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3542
3543 PUSHMARK (SP);
3544 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3545 #include "state.h"
3546 count = call_pv ("Coro::State::_jit", G_ARRAY);
3547 SPAGAIN;
3548
3549 save = POPs; save_ptr = SvPVbyte (save, save_len);
3550 load = POPs; load_ptr = SvPVbyte (load, load_len);
3551
3552 map_len = load_len + save_len + 16;
3553
3554 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3555
3556 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3557
3558 load_perl_slots = (load_save_perl_slots_type)map_base;
3559 memcpy (map_base, load_ptr, load_len);
3560
3561 map_base += (load_len + 15) & ~15;
3562
3563 save_perl_slots = (load_save_perl_slots_type)map_base;
3564 memcpy (map_base, save_ptr, save_len);
3565
3566 /* we are good citizens and try to make the page read-only, so the evil evil */
3567 /* hackers might have it a bit more difficult */
3568 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3569
3570 PUTBACK;
3571 eval_pv ("undef &Coro::State::_jit", 1);
3572}
3573
3574#endif
3575
2776MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3576MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2777 3577
2778PROTOTYPES: DISABLE 3578PROTOTYPES: DISABLE
2779 3579
2780BOOT: 3580BOOT:
2781{ 3581{
3582#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3583#include "state.h"
2782#ifdef USE_ITHREADS 3584#ifdef USE_ITHREADS
2783# if CORO_PTHREAD 3585# if CORO_PTHREAD
2784 coro_thx = PERL_GET_CONTEXT; 3586 coro_thx = PERL_GET_CONTEXT;
2785# endif 3587# endif
2786#endif 3588#endif
2787 BOOT_PAGESIZE; 3589 /* perl defines these to check for existance first, but why it doesn't */
3590 /* just create them one at init time is not clear to me, except for */
3591 /* programs trying to delete them, but... */
3592 /* anyway, we declare this as invalid and make sure they are initialised here */
3593 DEFSV;
3594 ERRSV;
2788 3595
2789 cctx_current = cctx_new_empty (); 3596 cctx_current = cctx_new_empty ();
2790 3597
2791 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3598 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2792 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3599 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
2832 coroapi.prepare_nop = prepare_nop; 3639 coroapi.prepare_nop = prepare_nop;
2833 coroapi.prepare_schedule = prepare_schedule; 3640 coroapi.prepare_schedule = prepare_schedule;
2834 coroapi.prepare_cede = prepare_cede; 3641 coroapi.prepare_cede = prepare_cede;
2835 coroapi.prepare_cede_notself = prepare_cede_notself; 3642 coroapi.prepare_cede_notself = prepare_cede_notself;
2836 3643
2837 { 3644 time_init (aTHX);
2838 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2839 3645
2840 if (!svp) croak ("Time::HiRes is required");
2841 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2842
2843 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2844 }
2845
2846 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3646 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3647#if CORO_JIT
3648 PUTBACK;
3649 jit_init (aTHX);
3650 SPAGAIN;
3651#endif
2847} 3652}
2848 3653
2849SV * 3654SV *
2850new (char *klass, ...) 3655new (SV *klass, ...)
2851 ALIAS: 3656 ALIAS:
2852 Coro::new = 1 3657 Coro::new = 1
2853 CODE: 3658 CODE:
2854{ 3659 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2855 struct coro *coro; 3660 OUTPUT:
2856 MAGIC *mg;
2857 HV *hv;
2858 CV *cb;
2859 int i;
2860
2861 if (items > 1)
2862 {
2863 cb = coro_sv_2cv (aTHX_ ST (1));
2864
2865 if (!ix)
2866 {
2867 if (CvISXSUB (cb))
2868 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2869
2870 if (!CvROOT (cb))
2871 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2872 }
2873 }
2874
2875 Newz (0, coro, 1, struct coro);
2876 coro->args = newAV ();
2877 coro->flags = CF_NEW;
2878
2879 if (coro_first) coro_first->prev = coro;
2880 coro->next = coro_first;
2881 coro_first = coro;
2882
2883 coro->hv = hv = newHV ();
2884 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2885 mg->mg_flags |= MGf_DUP;
2886 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2887
2888 if (items > 1)
2889 {
2890 av_extend (coro->args, items - 1 + ix - 1);
2891
2892 if (ix)
2893 {
2894 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2895 cb = cv_coro_run;
2896 }
2897
2898 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2899
2900 for (i = 2; i < items; i++)
2901 av_push (coro->args, newSVsv (ST (i)));
2902 }
2903}
2904 OUTPUT:
2905 RETVAL 3661 RETVAL
2906 3662
2907void 3663void
2908transfer (...) 3664transfer (...)
2909 PROTOTYPE: $$ 3665 PROTOTYPE: $$
2910 CODE: 3666 CODE:
2911 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3667 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2912
2913bool
2914_destroy (SV *coro_sv)
2915 CODE:
2916 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2917 OUTPUT:
2918 RETVAL
2919
2920void
2921_exit (int code)
2922 PROTOTYPE: $
2923 CODE:
2924 _exit (code);
2925 3668
2926SV * 3669SV *
2927clone (Coro::State coro) 3670clone (Coro::State coro)
2928 CODE: 3671 CODE:
2929{ 3672{
… …
2984void 3727void
2985list () 3728list ()
2986 PROTOTYPE: 3729 PROTOTYPE:
2987 PPCODE: 3730 PPCODE:
2988{ 3731{
2989 struct coro *coro; 3732 struct coro *coro;
2990 for (coro = coro_first; coro; coro = coro->next) 3733 for (coro = coro_first; coro; coro = coro->next)
2991 if (coro->hv) 3734 if (coro->hv)
2992 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3735 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2993} 3736}
2994 3737
… …
2998 eval = 1 3741 eval = 1
2999 CODE: 3742 CODE:
3000{ 3743{
3001 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3744 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3002 { 3745 {
3003 struct coro temp; 3746 struct coro *current = SvSTATE_current;
3747 struct CoroSLF slf_save;
3004 3748
3005 if (!(coro->flags & CF_RUNNING)) 3749 if (current != coro)
3006 { 3750 {
3007 PUTBACK; 3751 PUTBACK;
3008 save_perl (aTHX_ &temp); 3752 save_perl (aTHX_ current);
3009 load_perl (aTHX_ coro); 3753 load_perl (aTHX_ coro);
3754 /* the coro is most likely in an active SLF call.
3755 * while not strictly required (the code we execute is
3756 * not allowed to call any SLF functions), it's cleaner
3757 * to reinitialise the slf_frame and restore it later.
3758 * This might one day allow us to actually do SLF calls
3759 * from code executed here.
3760 */
3761 slf_save = slf_frame;
3762 slf_frame.prepare = 0;
3763 SPAGAIN;
3010 } 3764 }
3011 3765
3012 {
3013 dSP;
3014 ENTER;
3015 SAVETMPS;
3016 PUTBACK;
3017 PUSHSTACK; 3766 PUSHSTACK;
3767
3018 PUSHMARK (SP); 3768 PUSHMARK (SP);
3769 PUTBACK;
3019 3770
3020 if (ix) 3771 if (ix)
3021 eval_sv (coderef, 0); 3772 eval_sv (coderef, 0);
3022 else 3773 else
3023 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3774 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3024 3775
3025 POPSTACK; 3776 POPSTACK;
3026 SPAGAIN; 3777 SPAGAIN;
3027 FREETMPS;
3028 LEAVE;
3029 PUTBACK;
3030 }
3031 3778
3032 if (!(coro->flags & CF_RUNNING)) 3779 if (current != coro)
3033 { 3780 {
3781 PUTBACK;
3782 slf_frame = slf_save;
3034 save_perl (aTHX_ coro); 3783 save_perl (aTHX_ coro);
3035 load_perl (aTHX_ &temp); 3784 load_perl (aTHX_ current);
3036 SPAGAIN; 3785 SPAGAIN;
3037 } 3786 }
3038 } 3787 }
3039} 3788}
3040 3789
… …
3043 PROTOTYPE: $ 3792 PROTOTYPE: $
3044 ALIAS: 3793 ALIAS:
3045 is_ready = CF_READY 3794 is_ready = CF_READY
3046 is_running = CF_RUNNING 3795 is_running = CF_RUNNING
3047 is_new = CF_NEW 3796 is_new = CF_NEW
3048 is_destroyed = CF_DESTROYED 3797 is_destroyed = CF_ZOMBIE
3798 is_zombie = CF_ZOMBIE
3799 is_suspended = CF_SUSPENDED
3049 CODE: 3800 CODE:
3050 RETVAL = boolSV (coro->flags & ix); 3801 RETVAL = boolSV (coro->flags & ix);
3051 OUTPUT: 3802 OUTPUT:
3052 RETVAL 3803 RETVAL
3053 3804
3054void 3805void
3055throw (Coro::State self, SV *throw = &PL_sv_undef) 3806throw (SV *self, SV *exception = &PL_sv_undef)
3056 PROTOTYPE: $;$ 3807 PROTOTYPE: $;$
3057 CODE: 3808 CODE:
3058{ 3809{
3810 struct coro *coro = SvSTATE (self);
3059 struct coro *current = SvSTATE_current; 3811 struct coro *current = SvSTATE_current;
3060 SV **throwp = self == current ? &CORO_THROW : &self->except; 3812 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3061 SvREFCNT_dec (*throwp); 3813 SvREFCNT_dec (*exceptionp);
3062 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3814 SvGETMAGIC (exception);
3815 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3816
3817 api_ready (aTHX_ self);
3063} 3818}
3064 3819
3065void 3820void
3066api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3821api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3067 PROTOTYPE: $;$ 3822 PROTOTYPE: $;$
… …
3118 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3873 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3119 3874
3120 SV *tmp = *src; *src = *dst; *dst = tmp; 3875 SV *tmp = *src; *src = *dst; *dst = tmp;
3121 } 3876 }
3122 3877
3878void
3879cancel (Coro::State self)
3880 CODE:
3881 coro_state_destroy (aTHX_ self);
3882
3883SV *
3884enable_times (int enabled = enable_times)
3885 CODE:
3886{
3887 RETVAL = boolSV (enable_times);
3888
3889 if (enabled != enable_times)
3890 {
3891 enable_times = enabled;
3892
3893 coro_times_update ();
3894 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3895 }
3896}
3897 OUTPUT:
3898 RETVAL
3899
3900void
3901times (Coro::State self)
3902 PPCODE:
3903{
3904 struct coro *current = SvSTATE (coro_current);
3905
3906 if (ecb_expect_false (current == self))
3907 {
3908 coro_times_update ();
3909 coro_times_add (SvSTATE (coro_current));
3910 }
3911
3912 EXTEND (SP, 2);
3913 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3914 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3915
3916 if (ecb_expect_false (current == self))
3917 coro_times_sub (SvSTATE (coro_current));
3918}
3919
3920void
3921swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3922 CODE:
3923{
3924 struct coro *current = SvSTATE_current;
3925
3926 if (current == coro)
3927 SWAP_SVS (current);
3928
3929 if (!coro->swap_sv)
3930 coro->swap_sv = newAV ();
3931
3932 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3933 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3934
3935 if (current == coro)
3936 SWAP_SVS (current);
3937}
3938
3123 3939
3124MODULE = Coro::State PACKAGE = Coro 3940MODULE = Coro::State PACKAGE = Coro
3125 3941
3126BOOT: 3942BOOT:
3127{ 3943{
3128 int i;
3129
3130 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3944 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3131 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3945 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3132 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3946 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3133 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3134 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3947 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3135 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3948 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3136 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3949 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3137 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3950 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3138 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3951 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3139 3952
3140 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3953 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3141 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3954 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3142 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3955 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3143 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3956 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3144 3957
3145 coro_stash = gv_stashpv ("Coro", TRUE); 3958 coro_stash = gv_stashpv ("Coro", TRUE);
3146 3959
3147 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3960 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3148 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3961 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3149 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3962 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3150 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3963 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3151 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3964 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3152 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3965 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3153
3154 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3155 coro_ready[i] = newAV ();
3156 3966
3157 { 3967 {
3158 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3968 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3159 3969
3160 coroapi.schedule = api_schedule; 3970 coroapi.schedule = api_schedule;
… …
3164 coroapi.ready = api_ready; 3974 coroapi.ready = api_ready;
3165 coroapi.is_ready = api_is_ready; 3975 coroapi.is_ready = api_is_ready;
3166 coroapi.nready = coro_nready; 3976 coroapi.nready = coro_nready;
3167 coroapi.current = coro_current; 3977 coroapi.current = coro_current;
3168 3978
3979 coroapi.enterleave_hook = api_enterleave_hook;
3980 coroapi.enterleave_unhook = api_enterleave_unhook;
3981 coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
3982
3169 /*GCoroAPI = &coroapi;*/ 3983 /*GCoroAPI = &coroapi;*/
3170 sv_setiv (sv, (IV)&coroapi); 3984 sv_setiv (sv, (IV)&coroapi);
3171 SvREADONLY_on (sv); 3985 SvREADONLY_on (sv);
3172 } 3986 }
3173} 3987}
3174 3988
3989SV *
3990async (...)
3991 PROTOTYPE: &@
3992 CODE:
3993 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3994 api_ready (aTHX_ RETVAL);
3995 OUTPUT:
3996 RETVAL
3997
3998void
3999_destroy (Coro::State coro)
4000 CODE:
4001 /* used by the manager thread */
4002 coro_state_destroy (aTHX_ coro);
4003
4004void
4005on_destroy (Coro::State coro, SV *cb)
4006 CODE:
4007 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
4008
4009void
4010join (...)
4011 CODE:
4012 CORO_EXECUTE_SLF_XS (slf_init_join);
4013
3175void 4014void
3176terminate (...) 4015terminate (...)
3177 CODE: 4016 CODE:
3178 CORO_EXECUTE_SLF_XS (slf_init_terminate); 4017 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3179 4018
3180void 4019void
4020cancel (...)
4021 CODE:
4022 CORO_EXECUTE_SLF_XS (slf_init_cancel);
4023
4024int
4025safe_cancel (Coro::State self, ...)
4026 C_ARGS: aTHX_ self, &ST (1), items - 1
4027
4028void
3181schedule (...) 4029schedule (...)
3182 CODE: 4030 CODE:
3183 CORO_EXECUTE_SLF_XS (slf_init_schedule); 4031 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3184 4032
3185void 4033void
… …
3201cede_notself (...) 4049cede_notself (...)
3202 CODE: 4050 CODE:
3203 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 4051 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3204 4052
3205void 4053void
3206_cancel (Coro::State self)
3207 CODE:
3208 coro_state_destroy (aTHX_ self);
3209 coro_call_on_destroy (aTHX_ self);
3210
3211void
3212_set_current (SV *current) 4054_set_current (SV *current)
3213 PROTOTYPE: $ 4055 PROTOTYPE: $
3214 CODE: 4056 CODE:
3215 SvREFCNT_dec (SvRV (coro_current)); 4057 SvREFCNT_dec_NN (SvRV (coro_current));
3216 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 4058 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3217 4059
3218void 4060void
3219_set_readyhook (SV *hook) 4061_set_readyhook (SV *hook)
3220 PROTOTYPE: $ 4062 PROTOTYPE: $
3221 CODE: 4063 CODE:
3222 SvREFCNT_dec (coro_readyhook); 4064 SvREFCNT_dec (coro_readyhook);
4065 SvGETMAGIC (hook);
4066 if (SvOK (hook))
4067 {
3223 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 4068 coro_readyhook = newSVsv (hook);
4069 CORO_READYHOOK = invoke_sv_ready_hook_helper;
4070 }
4071 else
4072 {
4073 coro_readyhook = 0;
4074 CORO_READYHOOK = 0;
4075 }
3224 4076
3225int 4077int
3226prio (Coro::State coro, int newprio = 0) 4078prio (Coro::State coro, int newprio = 0)
3227 PROTOTYPE: $;$ 4079 PROTOTYPE: $;$
3228 ALIAS: 4080 ALIAS:
… …
3234 if (items > 1) 4086 if (items > 1)
3235 { 4087 {
3236 if (ix) 4088 if (ix)
3237 newprio = coro->prio - newprio; 4089 newprio = coro->prio - newprio;
3238 4090
3239 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 4091 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3240 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 4092 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3241 4093
3242 coro->prio = newprio; 4094 coro->prio = newprio;
3243 } 4095 }
3244} 4096}
3245 OUTPUT: 4097 OUTPUT:
… …
3260 RETVAL = coro_nready; 4112 RETVAL = coro_nready;
3261 OUTPUT: 4113 OUTPUT:
3262 RETVAL 4114 RETVAL
3263 4115
3264void 4116void
4117suspend (Coro::State self)
4118 PROTOTYPE: $
4119 CODE:
4120 self->flags |= CF_SUSPENDED;
4121
4122void
4123resume (Coro::State self)
4124 PROTOTYPE: $
4125 CODE:
4126 self->flags &= ~CF_SUSPENDED;
4127
4128void
3265_pool_handler (...) 4129_pool_handler (...)
3266 CODE: 4130 CODE:
3267 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 4131 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3268 4132
3269void 4133void
… …
3280 for (i = 1; i < items; ++i) 4144 for (i = 1; i < items; ++i)
3281 av_push (av, SvREFCNT_inc_NN (ST (i))); 4145 av_push (av, SvREFCNT_inc_NN (ST (i)));
3282 4146
3283 if ((SV *)hv == &PL_sv_undef) 4147 if ((SV *)hv == &PL_sv_undef)
3284 { 4148 {
3285 PUSHMARK (SP); 4149 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3286 EXTEND (SP, 2);
3287 PUSHs (sv_Coro);
3288 PUSHs ((SV *)cv_pool_handler);
3289 PUTBACK;
3290 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3291 SPAGAIN;
3292
3293 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4150 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4151 SvREFCNT_dec_NN (sv);
3294 } 4152 }
3295 4153
3296 { 4154 {
3297 struct coro *coro = SvSTATE_hv (hv); 4155 struct coro *coro = SvSTATE_hv (hv);
3298 4156
… …
3305 api_ready (aTHX_ (SV *)hv); 4163 api_ready (aTHX_ (SV *)hv);
3306 4164
3307 if (GIMME_V != G_VOID) 4165 if (GIMME_V != G_VOID)
3308 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); 4166 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3309 else 4167 else
3310 SvREFCNT_dec (hv); 4168 SvREFCNT_dec_NN (hv);
3311} 4169}
3312 4170
3313SV * 4171SV *
3314rouse_cb () 4172rouse_cb ()
3315 PROTOTYPE: 4173 PROTOTYPE:
… …
3322rouse_wait (...) 4180rouse_wait (...)
3323 PROTOTYPE: ;$ 4181 PROTOTYPE: ;$
3324 PPCODE: 4182 PPCODE:
3325 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4183 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3326 4184
4185void
4186on_enter (SV *block)
4187 ALIAS:
4188 on_leave = 1
4189 PROTOTYPE: &
4190 CODE:
4191{
4192 struct coro *coro = SvSTATE_current;
4193 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4194
4195 block = s_get_cv_croak (block);
4196
4197 if (!*avp)
4198 *avp = newAV ();
4199
4200 av_push (*avp, SvREFCNT_inc (block));
4201
4202 if (!ix)
4203 on_enterleave_call (aTHX_ block);
4204
4205 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4206 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4207 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4208}
4209
3327 4210
3328MODULE = Coro::State PACKAGE = PerlIO::cede 4211MODULE = Coro::State PACKAGE = PerlIO::cede
3329 4212
3330BOOT: 4213BOOT:
3331 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4214 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3334MODULE = Coro::State PACKAGE = Coro::Semaphore 4217MODULE = Coro::State PACKAGE = Coro::Semaphore
3335 4218
3336SV * 4219SV *
3337new (SV *klass, SV *count = 0) 4220new (SV *klass, SV *count = 0)
3338 CODE: 4221 CODE:
4222{
4223 int semcnt = 1;
4224
4225 if (count)
4226 {
4227 SvGETMAGIC (count);
4228
4229 if (SvOK (count))
4230 semcnt = SvIV (count);
4231 }
4232
3339 RETVAL = sv_bless ( 4233 RETVAL = sv_bless (
3340 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4234 coro_waitarray_new (aTHX_ semcnt),
3341 GvSTASH (CvGV (cv)) 4235 GvSTASH (CvGV (cv))
3342 ); 4236 );
4237}
3343 OUTPUT: 4238 OUTPUT:
3344 RETVAL 4239 RETVAL
3345 4240
3346# helper for Coro::Channel 4241# helper for Coro::Channel and others
3347SV * 4242SV *
3348_alloc (int count) 4243_alloc (int count)
3349 CODE: 4244 CODE:
3350 RETVAL = coro_waitarray_new (aTHX_ count); 4245 RETVAL = coro_waitarray_new (aTHX_ count);
3351 OUTPUT: 4246 OUTPUT:
… …
3393 XSRETURN_NO; 4288 XSRETURN_NO;
3394} 4289}
3395 4290
3396void 4291void
3397waiters (SV *self) 4292waiters (SV *self)
3398 PPCODE: 4293 PPCODE:
3399{ 4294{
3400 AV *av = (AV *)SvRV (self); 4295 AV *av = (AV *)SvRV (self);
3401 int wcount = AvFILLp (av) + 1 - 1; 4296 int wcount = AvFILLp (av) + 1 - 1;
3402 4297
3403 if (GIMME_V == G_SCALAR) 4298 if (GIMME_V == G_SCALAR)
… …
3409 for (i = 1; i <= wcount; ++i) 4304 for (i = 1; i <= wcount; ++i)
3410 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4305 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3411 } 4306 }
3412} 4307}
3413 4308
4309MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4310
4311void
4312_may_delete (SV *sem, int count, unsigned int extra_refs)
4313 PPCODE:
4314{
4315 AV *av = (AV *)SvRV (sem);
4316
4317 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4318 && AvFILLp (av) == 0 /* no waiters, just count */
4319 && SvIV (AvARRAY (av)[0]) == count)
4320 XSRETURN_YES;
4321
4322 XSRETURN_NO;
4323}
4324
3414MODULE = Coro::State PACKAGE = Coro::Signal 4325MODULE = Coro::State PACKAGE = Coro::Signal
3415 4326
3416SV * 4327SV *
3417new (SV *klass) 4328new (SV *klass)
3418 CODE: 4329 CODE:
… …
3430 4341
3431void 4342void
3432broadcast (SV *self) 4343broadcast (SV *self)
3433 CODE: 4344 CODE:
3434{ 4345{
3435 AV *av = (AV *)SvRV (self); 4346 AV *av = (AV *)SvRV (self);
3436 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4347 coro_signal_wake (aTHX_ av, AvFILLp (av));
3437} 4348}
3438 4349
3439void 4350void
3440send (SV *self) 4351send (SV *self)
… …
3448 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4359 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3449} 4360}
3450 4361
3451IV 4362IV
3452awaited (SV *self) 4363awaited (SV *self)
3453 CODE: 4364 CODE:
3454 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4365 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3455 OUTPUT: 4366 OUTPUT:
3456 RETVAL 4367 RETVAL
3457 4368
3458 4369
… …
3463 4374
3464void 4375void
3465_schedule (...) 4376_schedule (...)
3466 CODE: 4377 CODE:
3467{ 4378{
3468 static int incede; 4379 static int incede;
3469 4380
3470 api_cede_notself (aTHX); 4381 api_cede_notself (aTHX);
3471 4382
3472 ++incede; 4383 ++incede;
3473 while (coro_nready >= incede && api_cede (aTHX)) 4384 while (coro_nready >= incede && api_cede (aTHX))
… …
3489 4400
3490void 4401void
3491_register (char *target, char *proto, SV *req) 4402_register (char *target, char *proto, SV *req)
3492 CODE: 4403 CODE:
3493{ 4404{
3494 CV *req_cv = coro_sv_2cv (aTHX_ req); 4405 SV *req_cv = s_get_cv_croak (req);
3495 /* newXSproto doesn't return the CV on 5.8 */ 4406 /* newXSproto doesn't return the CV on 5.8 */
3496 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4407 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3497 sv_setpv ((SV *)slf_cv, proto); 4408 sv_setpv ((SV *)slf_cv, proto);
3498 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4409 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3499} 4410}
3500 4411
4412MODULE = Coro::State PACKAGE = Coro::Select
4413
4414void
4415patch_pp_sselect ()
4416 CODE:
4417 if (!coro_old_pp_sselect)
4418 {
4419 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4420 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4421 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4422 }
4423
4424void
4425unpatch_pp_sselect ()
4426 CODE:
4427 if (coro_old_pp_sselect)
4428 {
4429 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4430 coro_old_pp_sselect = 0;
4431 }
4432
4433MODULE = Coro::State PACKAGE = Coro::Util
4434
4435void
4436_exit (int code)
4437 CODE:
4438 _exit (code);
4439
4440NV
4441time ()
4442 CODE:
4443 RETVAL = nvtime (aTHX);
4444 OUTPUT:
4445 RETVAL
4446
4447NV
4448gettimeofday ()
4449 PPCODE:
4450{
4451 UV tv [2];
4452 u2time (aTHX_ tv);
4453 EXTEND (SP, 2);
4454 PUSHs (sv_2mortal (newSVuv (tv [0])));
4455 PUSHs (sv_2mortal (newSVuv (tv [1])));
4456}
4457

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