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Comparing Coro/Coro/State.xs (file contents):
Revision 1.323 by root, Sat Nov 22 06:03:10 2008 UTC vs.
Revision 1.455 by root, Sun Oct 4 13:07:55 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
… …
133#else 95#else
134# define dSTACKLEVEL volatile void *stacklevel 96# define dSTACKLEVEL volatile void *stacklevel
135# define STACKLEVEL ((void *)&stacklevel) 97# define STACKLEVEL ((void *)&stacklevel)
136#endif 98#endif
137 99
138#define IN_DESTRUCT (PL_main_cv == Nullcv) 100#define IN_DESTRUCT PL_dirty
139
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))
154 101
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 */
… …
175static HV *coro_state_stash, *coro_stash; 134static HV *coro_state_stash, *coro_stash;
176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 135static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
177 136
178static AV *av_destroy; /* destruction queue */ 137static AV *av_destroy; /* destruction queue */
179static SV *sv_manager; /* the manager coro */ 138static SV *sv_manager; /* the manager coro */
139static SV *sv_idle; /* $Coro::idle */
180 140
181static GV *irsgv; /* $/ */ 141static GV *irsgv; /* $/ */
182static GV *stdoutgv; /* *STDOUT */ 142static GV *stdoutgv; /* *STDOUT */
183static SV *rv_diehook; 143static SV *rv_diehook;
184static SV *rv_warnhook; 144static SV *rv_warnhook;
185static HV *hv_sig; /* %SIG */
186 145
187/* async_pool helper stuff */ 146/* async_pool helper stuff */
188static SV *sv_pool_rss; 147static SV *sv_pool_rss;
189static SV *sv_pool_size; 148static SV *sv_pool_size;
190static SV *sv_async_pool_idle; /* description string */ 149static SV *sv_async_pool_idle; /* description string */
191static AV *av_async_pool; /* idle pool */ 150static AV *av_async_pool; /* idle pool */
192static SV *sv_Coro; /* class string */ 151static SV *sv_Coro; /* class string */
193static CV *cv_pool_handler; 152static CV *cv_pool_handler;
194static CV *cv_coro_state_new;
195 153
196/* Coro::AnyEvent */ 154/* Coro::AnyEvent */
197static SV *sv_activity; 155static SV *sv_activity;
198 156
157/* enable processtime/realtime profiling */
158static char enable_times;
159typedef U32 coro_ts[2];
160static coro_ts time_real, time_cpu;
161static char times_valid;
162
199static struct coro_cctx *cctx_first; 163static struct coro_cctx *cctx_first;
200static int cctx_count, cctx_idle; 164static int cctx_count, cctx_idle;
201 165
202enum { 166enum
167{
203 CC_MAPPED = 0x01, 168 CC_MAPPED = 0x01,
204 CC_NOREUSE = 0x02, /* throw this away after tracing */ 169 CC_NOREUSE = 0x02, /* throw this away after tracing */
205 CC_TRACE = 0x04, 170 CC_TRACE = 0x04,
206 CC_TRACE_SUB = 0x08, /* trace sub calls */ 171 CC_TRACE_SUB = 0x08, /* trace sub calls */
207 CC_TRACE_LINE = 0x10, /* trace each statement */ 172 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
212typedef struct coro_cctx 177typedef struct coro_cctx
213{ 178{
214 struct coro_cctx *next; 179 struct coro_cctx *next;
215 180
216 /* the stack */ 181 /* the stack */
217 void *sptr; 182 struct coro_stack stack;
218 size_t ssize;
219 183
220 /* cpu state */ 184 /* cpu state */
221 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 185 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
186#ifndef NDEBUG
222 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 187 JMPENV *idle_te; /* same as idle_sp, but for top_env */
188#endif
223 JMPENV *top_env; 189 JMPENV *top_env;
224 coro_context cctx; 190 coro_context cctx;
225 191
226 U32 gen; 192 U32 gen;
227#if CORO_USE_VALGRIND 193#if CORO_USE_VALGRIND
228 int valgrind_id; 194 int valgrind_id;
229#endif 195#endif
230 unsigned char flags; 196 unsigned char flags;
231} coro_cctx; 197} coro_cctx;
232 198
233coro_cctx *cctx_current; /* the currently running cctx */ 199static coro_cctx *cctx_current; /* the currently running cctx */
234 200
235/*****************************************************************************/ 201/*****************************************************************************/
236 202
203static MGVTBL coro_state_vtbl;
204
237enum { 205enum
206{
238 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
239 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
240 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
241 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 210 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
211 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
212 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
242}; 213};
243 214
244/* the structure where most of the perl state is stored, overlaid on the cxstack */ 215/* the structure where most of the perl state is stored, overlaid on the cxstack */
245typedef struct 216typedef struct
246{ 217{
247 SV *defsv;
248 AV *defav;
249 SV *errsv;
250 SV *irsgv;
251#define VAR(name,type) type name; 218 #define VARx(name,expr,type) type name;
252# include "state.h" 219 #include "state.h"
253#undef VAR
254} perl_slots; 220} perl_slots;
255 221
222/* how many context stack entries do we need for perl_slots */
256#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 223#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
257 224
258/* this is a structure representing a perl-level coroutine */ 225/* this is a structure representing a perl-level coroutine */
259struct coro { 226struct coro
227{
260 /* the C coroutine allocated to this perl coroutine, if any */ 228 /* the C coroutine allocated to this perl coroutine, if any */
261 coro_cctx *cctx; 229 coro_cctx *cctx;
230
231 /* ready queue */
232 struct coro *next_ready;
262 233
263 /* state data */ 234 /* state data */
264 struct CoroSLF slf_frame; /* saved slf frame */ 235 struct CoroSLF slf_frame; /* saved slf frame */
265 AV *mainstack; 236 AV *mainstack;
266 perl_slots *slot; /* basically the saved sp */ 237 perl_slots *slot; /* basically the saved sp */
267 238
268 CV *startcv; /* the CV to execute */ 239 CV *startcv; /* the CV to execute */
269 AV *args; /* data associated with this coroutine (initial args) */ 240 AV *args; /* data associated with this coroutine (initial args) */
270 int refcnt; /* coroutines are refcounted, yes */
271 int flags; /* CF_ flags */ 241 int flags; /* CF_ flags */
272 HV *hv; /* the perl hash associated with this coro, if any */ 242 HV *hv; /* the perl hash associated with this coro, if any */
273 void (*on_destroy)(pTHX_ struct coro *coro);
274 243
275 /* statistics */ 244 /* statistics */
276 int usecount; /* number of transfers to this coro */ 245 int usecount; /* number of transfers to this coro */
277 246
278 /* coro process data */ 247 /* coro process data */
279 int prio; 248 int prio;
280 SV *except; /* exception to be thrown */ 249 SV *except; /* exception to be thrown */
281 SV *rouse_cb; 250 SV *rouse_cb; /* last rouse callback */
251 AV *on_destroy; /* callbacks or coros to notify on destroy */
252 AV *status; /* the exit status list */
282 253
283 /* async_pool */ 254 /* async_pool */
284 SV *saved_deffh; 255 SV *saved_deffh;
285 SV *invoke_cb; 256 SV *invoke_cb;
286 AV *invoke_av; 257 AV *invoke_av;
287 258
259 /* on_enter/on_leave */
260 AV *on_enter; AV *on_enter_xs;
261 AV *on_leave; AV *on_leave_xs;
262
263 /* swap_sv */
264 AV *swap_sv;
265
266 /* times */
267 coro_ts t_cpu, t_real;
268
288 /* linked list */ 269 /* linked list */
289 struct coro *next, *prev; 270 struct coro *next, *prev;
290}; 271};
291 272
292typedef struct coro *Coro__State; 273typedef struct coro *Coro__State;
293typedef struct coro *Coro__State_or_hashref; 274typedef struct coro *Coro__State_or_hashref;
294 275
295/* the following variables are effectively part of the perl context */ 276/* the following variables are effectively part of the perl context */
296/* and get copied between struct coro and these variables */ 277/* and get copied between struct coro and these variables */
297/* the mainr easonw e don't support windows process emulation */ 278/* the main reason we don't support windows process emulation */
298static struct CoroSLF slf_frame; /* the current slf frame */ 279static struct CoroSLF slf_frame; /* the current slf frame */
299 280
300/** Coro ********************************************************************/ 281/** Coro ********************************************************************/
301 282
302#define PRIO_MAX 3 283#define CORO_PRIO_MAX 3
303#define PRIO_HIGH 1 284#define CORO_PRIO_HIGH 1
304#define PRIO_NORMAL 0 285#define CORO_PRIO_NORMAL 0
305#define PRIO_LOW -1 286#define CORO_PRIO_LOW -1
306#define PRIO_IDLE -3 287#define CORO_PRIO_IDLE -3
307#define PRIO_MIN -4 288#define CORO_PRIO_MIN -4
308 289
309/* for Coro.pm */ 290/* for Coro.pm */
310static SV *coro_current; 291static SV *coro_current;
311static SV *coro_readyhook; 292static SV *coro_readyhook;
312static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 293static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
313static CV *cv_coro_run, *cv_coro_terminate; 294static CV *cv_coro_run;
314static struct coro *coro_first; 295static struct coro *coro_first;
315#define coro_nready coroapi.nready 296#define coro_nready coroapi.nready
316 297
298/** JIT *********************************************************************/
299
300#if CORO_JIT
301 /* APPLE doesn't have mmap though */
302 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
303 #ifndef CORO_JIT_TYPE
304 #if ECB_AMD64 && CORO_JIT_UNIXY
305 #define CORO_JIT_TYPE "amd64-unix"
306 #elif __i386 && CORO_JIT_UNIXY
307 #define CORO_JIT_TYPE "x86-unix"
308 #endif
309 #endif
310#endif
311
312#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
313 #undef CORO_JIT
314#endif
315
316#if CORO_JIT
317 typedef void (*load_save_perl_slots_type)(perl_slots *);
318 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
319#endif
320
321/** Coro::Select ************************************************************/
322
323static OP *(*coro_old_pp_sselect) (pTHX);
324static SV *coro_select_select;
325
326/* horrible hack, but if it works... */
327static OP *
328coro_pp_sselect (pTHX)
329{
330 dSP;
331 PUSHMARK (SP - 4); /* fake argument list */
332 XPUSHs (coro_select_select);
333 PUTBACK;
334
335 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
336 PL_op->op_flags |= OPf_STACKED;
337 PL_op->op_private = 0;
338 return PL_ppaddr [OP_ENTERSUB](aTHX);
339}
340
341/** time stuff **************************************************************/
342
343#ifdef HAS_GETTIMEOFDAY
344
345ecb_inline void
346coro_u2time (pTHX_ UV ret[2])
347{
348 struct timeval tv;
349 gettimeofday (&tv, 0);
350
351 ret [0] = tv.tv_sec;
352 ret [1] = tv.tv_usec;
353}
354
355ecb_inline double
356coro_nvtime (void)
357{
358 struct timeval tv;
359 gettimeofday (&tv, 0);
360
361 return tv.tv_sec + tv.tv_usec * 1e-6;
362}
363
364ecb_inline void
365time_init (pTHX)
366{
367 nvtime = coro_nvtime;
368 u2time = coro_u2time;
369}
370
371#else
372
373ecb_inline void
374time_init (pTHX)
375{
376 SV **svp;
377
378 require_pv ("Time/HiRes.pm");
379
380 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
381
382 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
383 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
384
385 nvtime = INT2PTR (double (*)(), SvIV (*svp));
386
387 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
388 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
389}
390
391#endif
392
317/** lowlevel stuff **********************************************************/ 393/** lowlevel stuff **********************************************************/
318 394
319static SV * 395static SV * ecb_noinline
320coro_get_sv (pTHX_ const char *name, int create) 396coro_get_sv (pTHX_ const char *name, int create)
321{ 397{
322#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
323 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 399 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
324 get_sv (name, create); 400 get_sv (name, create);
325#endif 401#endif
326 return get_sv (name, create); 402 return get_sv (name, create);
327} 403}
328 404
329static AV * 405static AV * ecb_noinline
330coro_get_av (pTHX_ const char *name, int create) 406coro_get_av (pTHX_ const char *name, int create)
331{ 407{
332#if PERL_VERSION_ATLEAST (5,10,0) 408#if PERL_VERSION_ATLEAST (5,10,0)
333 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 409 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
334 get_av (name, create); 410 get_av (name, create);
335#endif 411#endif
336 return get_av (name, create); 412 return get_av (name, create);
337} 413}
338 414
339static HV * 415static HV * ecb_noinline
340coro_get_hv (pTHX_ const char *name, int create) 416coro_get_hv (pTHX_ const char *name, int create)
341{ 417{
342#if PERL_VERSION_ATLEAST (5,10,0) 418#if PERL_VERSION_ATLEAST (5,10,0)
343 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 419 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
344 get_hv (name, create); 420 get_hv (name, create);
345#endif 421#endif
346 return get_hv (name, create); 422 return get_hv (name, create);
347} 423}
348 424
349/* may croak */ 425ecb_inline void
350INLINE CV * 426coro_times_update (void)
351coro_sv_2cv (pTHX_ SV *sv)
352{ 427{
353 HV *st; 428#ifdef coro_clock_gettime
354 GV *gvp; 429 struct timespec ts;
355 return sv_2cv (sv, &st, &gvp, 0);
356}
357 430
358static AV * 431 ts.tv_sec = ts.tv_nsec = 0;
432 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
433 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
434
435 ts.tv_sec = ts.tv_nsec = 0;
436 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
437 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
438#else
439 dTHX;
440 UV tv[2];
441
442 u2time (aTHX_ tv);
443 time_real [0] = tv [0];
444 time_real [1] = tv [1] * 1000;
445#endif
446}
447
448ecb_inline void
449coro_times_add (struct coro *c)
450{
451 c->t_real [1] += time_real [1];
452 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
453 c->t_real [0] += time_real [0];
454
455 c->t_cpu [1] += time_cpu [1];
456 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
457 c->t_cpu [0] += time_cpu [0];
458}
459
460ecb_inline void
461coro_times_sub (struct coro *c)
462{
463 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
464 c->t_real [1] -= time_real [1];
465 c->t_real [0] -= time_real [0];
466
467 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
468 c->t_cpu [1] -= time_cpu [1];
469 c->t_cpu [0] -= time_cpu [0];
470}
471
472/*****************************************************************************/
473/* magic glue */
474
475#define CORO_MAGIC_type_cv 26
476#define CORO_MAGIC_type_state PERL_MAGIC_ext
477
478#define CORO_MAGIC_NN(sv, type) \
479 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
480 ? SvMAGIC (sv) \
481 : mg_find (sv, type))
482
483#define CORO_MAGIC(sv, type) \
484 (ecb_expect_true (SvMAGIC (sv)) \
485 ? CORO_MAGIC_NN (sv, type) \
486 : 0)
487
488#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
489#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
490
491ecb_inline MAGIC *
492SvSTATEhv_p (pTHX_ SV *coro)
493{
494 MAGIC *mg;
495
496 if (ecb_expect_true (
497 SvTYPE (coro) == SVt_PVHV
498 && (mg = CORO_MAGIC_state (coro))
499 && mg->mg_virtual == &coro_state_vtbl
500 ))
501 return mg;
502
503 return 0;
504}
505
506ecb_inline struct coro *
507SvSTATE_ (pTHX_ SV *coro_sv)
508{
509 MAGIC *mg;
510
511 if (SvROK (coro_sv))
512 coro_sv = SvRV (coro_sv);
513
514 mg = SvSTATEhv_p (aTHX_ coro_sv);
515 if (!mg)
516 croak ("Coro::State object required");
517
518 return (struct coro *)mg->mg_ptr;
519}
520
521#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
522
523/* faster than SvSTATE, but expects a coroutine hv */
524#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
525#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
526
527/*****************************************************************************/
528/* padlist management and caching */
529
530ecb_inline PADLIST *
359coro_derive_padlist (pTHX_ CV *cv) 531coro_derive_padlist (pTHX_ CV *cv)
360{ 532{
361 AV *padlist = CvPADLIST (cv); 533 PADLIST *padlist = CvPADLIST (cv);
362 AV *newpadlist, *newpad; 534 PADLIST *newpadlist;
535 PADNAMELIST *padnames;
536 PAD *newpad;
537 PADOFFSET off = PadlistMAX (padlist) + 1;
363 538
364 newpadlist = newAV (); 539#if NEWPADAPI
540
541 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
542 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
543 while (!PadlistARRAY (padlist)[off - 1])
544 --off;
545
546 Perl_pad_push (aTHX_ padlist, off);
547
548 newpad = PadlistARRAY (padlist)[off];
549 PadlistARRAY (padlist)[off] = 0;
550
551#else
552
553#if PERL_VERSION_ATLEAST (5,10,0)
554 Perl_pad_push (aTHX_ padlist, off);
555#else
556 Perl_pad_push (aTHX_ padlist, off, 1);
557#endif
558
559 newpad = PadlistARRAY (padlist)[off];
560 PadlistMAX (padlist) = off - 1;
561
562#endif
563
564 newPADLIST (newpadlist);
565#if !PERL_VERSION_ATLEAST(5,15,3)
566 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
365 AvREAL_off (newpadlist); 567 AvREAL_off (newpadlist);
366#if PERL_VERSION_ATLEAST (5,10,0)
367 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
368#else
369 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
370#endif 568#endif
371 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
372 --AvFILLp (padlist);
373 569
374 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 570 /* Already extended to 2 elements by newPADLIST. */
375 av_store (newpadlist, 1, (SV *)newpad); 571 PadlistMAX (newpadlist) = 1;
572
573 padnames = PadlistNAMES (padlist);
574 ++PadnamelistREFCNT (padnames);
575 PadlistNAMES (newpadlist) = padnames;
576
577 PadlistARRAY (newpadlist)[1] = newpad;
376 578
377 return newpadlist; 579 return newpadlist;
378} 580}
379 581
380static void 582ecb_inline void
381free_padlist (pTHX_ AV *padlist) 583free_padlist (pTHX_ PADLIST *padlist)
382{ 584{
383 /* may be during global destruction */ 585 /* may be during global destruction */
384 if (SvREFCNT (padlist)) 586 if (!IN_DESTRUCT)
385 { 587 {
386 I32 i = AvFILLp (padlist); 588 I32 i = PadlistMAX (padlist);
387 while (i >= 0) 589
590 while (i > 0) /* special-case index 0 */
388 { 591 {
389 SV **svp = av_fetch (padlist, i--, FALSE); 592 /* we try to be extra-careful here */
593 PAD *pad = PadlistARRAY (padlist)[i--];
594
390 if (svp) 595 if (pad)
391 { 596 {
392 SV *sv; 597 I32 j = PadMAX (pad);
393 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 598
599 while (j >= 0)
394 SvREFCNT_dec (sv); 600 SvREFCNT_dec (PadARRAY (pad)[j--]);
395 601
602 PadMAX (pad) = -1;
396 SvREFCNT_dec (*svp); 603 SvREFCNT_dec (pad);
397 } 604 }
398 } 605 }
399 606
607 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
608
609#if NEWPADAPI
610 Safefree (PadlistARRAY (padlist));
611 Safefree (padlist);
612#else
613 AvFILLp (padlist) = -1;
614 AvREAL_off (padlist);
400 SvREFCNT_dec ((SV*)padlist); 615 SvREFCNT_dec ((SV*)padlist);
616#endif
401 } 617 }
402} 618}
403 619
404static int 620static int
405coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 621coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406{ 622{
407 AV *padlist; 623 PADLIST *padlist;
408 AV *av = (AV *)mg->mg_obj; 624 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
625 size_t len = *(size_t *)mg->mg_ptr;
409 626
410 /* casting is fun. */ 627 /* perl manages to free our internal AV and _then_ call us */
411 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 628 if (IN_DESTRUCT)
629 return 0;
630
631 while (len--)
412 free_padlist (aTHX_ padlist); 632 free_padlist (aTHX_ padlists[len]);
413
414 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415 633
416 return 0; 634 return 0;
417} 635}
418
419#define CORO_MAGIC_type_cv 26
420#define CORO_MAGIC_type_state PERL_MAGIC_ext
421 636
422static MGVTBL coro_cv_vtbl = { 637static MGVTBL coro_cv_vtbl = {
423 0, 0, 0, 0, 638 0, 0, 0, 0,
424 coro_cv_free 639 coro_cv_free
425}; 640};
426 641
427#define CORO_MAGIC_NN(sv, type) \
428 (expect_true (SvMAGIC (sv)->mg_type == type) \
429 ? SvMAGIC (sv) \
430 : mg_find (sv, type))
431
432#define CORO_MAGIC(sv, type) \
433 (expect_true (SvMAGIC (sv)) \
434 ? CORO_MAGIC_NN (sv, type) \
435 : 0)
436
437#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
438#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
439
440INLINE struct coro *
441SvSTATE_ (pTHX_ SV *coro)
442{
443 HV *stash;
444 MAGIC *mg;
445
446 if (SvROK (coro))
447 coro = SvRV (coro);
448
449 if (expect_false (SvTYPE (coro) != SVt_PVHV))
450 croak ("Coro::State object required");
451
452 stash = SvSTASH (coro);
453 if (expect_false (stash != coro_stash && stash != coro_state_stash))
454 {
455 /* very slow, but rare, check */
456 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
457 croak ("Coro::State object required");
458 }
459
460 mg = CORO_MAGIC_state (coro);
461 return (struct coro *)mg->mg_ptr;
462}
463
464#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
465
466/* faster than SvSTATE, but expects a coroutine hv */
467#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
468#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
469
470/* the next two functions merely cache the padlists */ 642/* the next two functions merely cache the padlists */
471static void 643ecb_inline void
472get_padlist (pTHX_ CV *cv) 644get_padlist (pTHX_ CV *cv)
473{ 645{
474 MAGIC *mg = CORO_MAGIC_cv (cv); 646 MAGIC *mg = CORO_MAGIC_cv (cv);
475 AV *av; 647 size_t *lenp;
476 648
477 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 649 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
478 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 650 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
479 else 651 else
480 { 652 {
481#if CORO_PREFER_PERL_FUNCTIONS 653#if CORO_PREFER_PERL_FUNCTIONS
482 /* this is probably cleaner? but also slower! */ 654 /* this is probably cleaner? but also slower! */
483 /* in practise, it seems to be less stable */ 655 /* in practise, it seems to be less stable */
… …
489 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 661 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
490#endif 662#endif
491 } 663 }
492} 664}
493 665
494static void 666ecb_inline void
495put_padlist (pTHX_ CV *cv) 667put_padlist (pTHX_ CV *cv)
496{ 668{
497 MAGIC *mg = CORO_MAGIC_cv (cv); 669 MAGIC *mg = CORO_MAGIC_cv (cv);
498 AV *av;
499 670
500 if (expect_false (!mg)) 671 if (ecb_expect_false (!mg))
672 {
501 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 673 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
674 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
675 mg->mg_len = 1; /* so mg_free frees mg_ptr */
676 }
677 else
678 Renew (mg->mg_ptr,
679 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
680 char);
502 681
503 av = (AV *)mg->mg_obj; 682 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
504
505 if (expect_false (AvFILLp (av) >= AvMAX (av)))
506 av_extend (av, AvMAX (av) + 1);
507
508 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509} 683}
510 684
511/** load & save, init *******************************************************/ 685/** load & save, init *******************************************************/
686
687ecb_inline void
688swap_sv (SV *a, SV *b)
689{
690 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
691 SV tmp;
692
693 /* swap sv_any */
694 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
695
696 /* swap sv_flags */
697 SvFLAGS (&tmp) = SvFLAGS (a);
698 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
699 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
700
701#if PERL_VERSION_ATLEAST (5,10,0)
702 /* perl 5.10 and later complicates this _quite_ a bit, but it also
703 * is much faster, so no quarrels here. alternatively, we could
704 * sv_upgrade to avoid this.
705 */
706 {
707 /* swap sv_u */
708 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
709
710 /* if SvANY points to the head, we need to adjust the pointers,
711 * as the pointer for a still points to b, and maybe vice versa.
712 */
713 U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
714 #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
715 svany_in_head_set |= 1 << SVt_NV;
716 #endif
717
718 #define svany_in_head(type) (svany_in_head_set & (1 << (type)))
719
720 if (svany_in_head (SvTYPE (a)))
721 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
722
723 if (svany_in_head (SvTYPE (b)))
724 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
725 }
726#endif
727}
728
729/* swap sv heads, at least logically */
730static void
731swap_svs (pTHX_ Coro__State c)
732{
733 int i;
734
735 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
736 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
737}
738
739#define SWAP_SVS(coro) \
740 if (ecb_expect_false ((coro)->swap_sv)) \
741 swap_svs (aTHX_ (coro))
742
743static void
744on_enterleave_call (pTHX_ SV *cb);
512 745
513static void 746static void
514load_perl (pTHX_ Coro__State c) 747load_perl (pTHX_ Coro__State c)
515{ 748{
516 perl_slots *slot = c->slot; 749 perl_slots *slot = c->slot;
517 c->slot = 0; 750 c->slot = 0;
518 751
519 PL_mainstack = c->mainstack; 752 PL_mainstack = c->mainstack;
520 753
521 GvSV (PL_defgv) = slot->defsv; 754#if CORO_JIT
522 GvAV (PL_defgv) = slot->defav; 755 load_perl_slots (slot);
523 GvSV (PL_errgv) = slot->errsv; 756#else
524 GvSV (irsgv) = slot->irsgv;
525
526 #define VAR(name,type) PL_ ## name = slot->name; 757 #define VARx(name,expr,type) expr = slot->name;
527 # include "state.h" 758 #include "state.h"
528 #undef VAR 759#endif
529 760
530 { 761 {
531 dSP; 762 dSP;
532 763
533 CV *cv; 764 CV *cv;
534 765
535 /* now do the ugly restore mess */ 766 /* now do the ugly restore mess */
536 while (expect_true (cv = (CV *)POPs)) 767 while (ecb_expect_true (cv = (CV *)POPs))
537 { 768 {
538 put_padlist (aTHX_ cv); /* mark this padlist as available */ 769 put_padlist (aTHX_ cv); /* mark this padlist as available */
539 CvDEPTH (cv) = PTR2IV (POPs); 770 CvDEPTH (cv) = PTR2IV (POPs);
540 CvPADLIST (cv) = (AV *)POPs; 771 CvPADLIST (cv) = (PADLIST *)POPs;
541 } 772 }
542 773
543 PUTBACK; 774 PUTBACK;
544 } 775 }
545 776
546 slf_frame = c->slf_frame; 777 slf_frame = c->slf_frame;
547 CORO_THROW = c->except; 778 CORO_THROW = c->except;
779
780 if (ecb_expect_false (enable_times))
781 {
782 if (ecb_expect_false (!times_valid))
783 coro_times_update ();
784
785 coro_times_sub (c);
786 }
787
788 if (ecb_expect_false (c->on_enter))
789 {
790 int i;
791
792 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
793 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
794 }
795
796 if (ecb_expect_false (c->on_enter_xs))
797 {
798 int i;
799
800 for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
801 ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
802 }
803
804 SWAP_SVS (c);
548} 805}
549 806
550static void 807static void
551save_perl (pTHX_ Coro__State c) 808save_perl (pTHX_ Coro__State c)
552{ 809{
810 SWAP_SVS (c);
811
812 if (ecb_expect_false (c->on_leave_xs))
813 {
814 int i;
815
816 for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
817 ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
818 }
819
820 if (ecb_expect_false (c->on_leave))
821 {
822 int i;
823
824 for (i = AvFILLp (c->on_leave); i >= 0; --i)
825 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
826 }
827
828 times_valid = 0;
829
830 if (ecb_expect_false (enable_times))
831 {
832 coro_times_update (); times_valid = 1;
833 coro_times_add (c);
834 }
835
553 c->except = CORO_THROW; 836 c->except = CORO_THROW;
554 c->slf_frame = slf_frame; 837 c->slf_frame = slf_frame;
555 838
556 { 839 {
557 dSP; 840 dSP;
… …
566 849
567 XPUSHs (Nullsv); 850 XPUSHs (Nullsv);
568 /* this loop was inspired by pp_caller */ 851 /* this loop was inspired by pp_caller */
569 for (;;) 852 for (;;)
570 { 853 {
571 while (expect_true (cxix >= 0)) 854 while (ecb_expect_true (cxix >= 0))
572 { 855 {
573 PERL_CONTEXT *cx = &ccstk[cxix--]; 856 PERL_CONTEXT *cx = &ccstk[cxix--];
574 857
575 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 858 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
576 { 859 {
577 CV *cv = cx->blk_sub.cv; 860 CV *cv = cx->blk_sub.cv;
578 861
579 if (expect_true (CvDEPTH (cv))) 862 if (ecb_expect_true (CvDEPTH (cv)))
580 { 863 {
581 EXTEND (SP, 3); 864 EXTEND (SP, 3);
582 PUSHs ((SV *)CvPADLIST (cv)); 865 PUSHs ((SV *)CvPADLIST (cv));
583 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 866 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
584 PUSHs ((SV *)cv); 867 PUSHs ((SV *)cv);
… …
587 get_padlist (aTHX_ cv); 870 get_padlist (aTHX_ cv);
588 } 871 }
589 } 872 }
590 } 873 }
591 874
592 if (expect_true (top_si->si_type == PERLSI_MAIN)) 875 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
593 break; 876 break;
594 877
595 top_si = top_si->si_prev; 878 top_si = top_si->si_prev;
596 ccstk = top_si->si_cxstack; 879 ccstk = top_si->si_cxstack;
597 cxix = top_si->si_cxix; 880 cxix = top_si->si_cxix;
… …
599 882
600 PUTBACK; 883 PUTBACK;
601 } 884 }
602 885
603 /* allocate some space on the context stack for our purposes */ 886 /* allocate some space on the context stack for our purposes */
604 /* we manually unroll here, as usually 2 slots is enough */ 887 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
605 if (SLOT_COUNT >= 1) CXINC;
606 if (SLOT_COUNT >= 2) CXINC;
607 if (SLOT_COUNT >= 3) CXINC;
608 { 888 {
609 int i; 889 unsigned int i;
890
610 for (i = 3; i < SLOT_COUNT; ++i) 891 for (i = 0; i < SLOT_COUNT; ++i)
611 CXINC; 892 CXINC;
612 } 893
613 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 894 cxstack_ix -= SLOT_COUNT; /* undo allocation */
895 }
614 896
615 c->mainstack = PL_mainstack; 897 c->mainstack = PL_mainstack;
616 898
617 { 899 {
618 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 900 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
619 901
620 slot->defav = GvAV (PL_defgv); 902#if CORO_JIT
621 slot->defsv = DEFSV; 903 save_perl_slots (slot);
622 slot->errsv = ERRSV; 904#else
623 slot->irsgv = GvSV (irsgv);
624
625 #define VAR(name,type) slot->name = PL_ ## name; 905 #define VARx(name,expr,type) slot->name = expr;
626 # include "state.h" 906 #include "state.h"
627 #undef VAR 907#endif
628 } 908 }
629} 909}
630 910
631/* 911/*
632 * allocate various perl stacks. This is almost an exact copy 912 * allocate various perl stacks. This is almost an exact copy
… …
638# define coro_init_stacks(thx) init_stacks () 918# define coro_init_stacks(thx) init_stacks ()
639#else 919#else
640static void 920static void
641coro_init_stacks (pTHX) 921coro_init_stacks (pTHX)
642{ 922{
643 PL_curstackinfo = new_stackinfo(32, 8); 923 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
644 PL_curstackinfo->si_type = PERLSI_MAIN; 924 PL_curstackinfo->si_type = PERLSI_MAIN;
645 PL_curstack = PL_curstackinfo->si_stack; 925 PL_curstack = PL_curstackinfo->si_stack;
646 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 926 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
647 927
648 PL_stack_base = AvARRAY(PL_curstack); 928 PL_stack_base = AvARRAY(PL_curstack);
… …
663#endif 943#endif
664 944
665 New(54,PL_scopestack,8,I32); 945 New(54,PL_scopestack,8,I32);
666 PL_scopestack_ix = 0; 946 PL_scopestack_ix = 0;
667 PL_scopestack_max = 8; 947 PL_scopestack_max = 8;
948#if HAS_SCOPESTACK_NAME
949 New(54,PL_scopestack_name,8,const char*);
950#endif
668 951
669 New(54,PL_savestack,24,ANY); 952 New(54,PL_savestack,24,ANY);
670 PL_savestack_ix = 0; 953 PL_savestack_ix = 0;
671 PL_savestack_max = 24; 954 PL_savestack_max = 24;
672 955
… …
700 } 983 }
701 984
702 Safefree (PL_tmps_stack); 985 Safefree (PL_tmps_stack);
703 Safefree (PL_markstack); 986 Safefree (PL_markstack);
704 Safefree (PL_scopestack); 987 Safefree (PL_scopestack);
988#if HAS_SCOPESTACK_NAME
989 Safefree (PL_scopestack_name);
990#endif
705 Safefree (PL_savestack); 991 Safefree (PL_savestack);
706#if !PERL_VERSION_ATLEAST (5,10,0) 992#if !PERL_VERSION_ATLEAST (5,10,0)
707 Safefree (PL_retstack); 993 Safefree (PL_retstack);
708#endif 994#endif
709} 995}
… …
755#endif 1041#endif
756 1042
757/* 1043/*
758 * This overrides the default magic get method of %SIG elements. 1044 * This overrides the default magic get method of %SIG elements.
759 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1045 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
760 * and instead of tryign to save and restore the hash elements, we just provide 1046 * and instead of trying to save and restore the hash elements (extremely slow),
761 * readback here. 1047 * we just provide our own readback here.
762 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
763 * not expecting this to actually change the hook. This is a potential problem
764 * when a schedule happens then, but we ignore this.
765 */ 1048 */
766static int 1049static int ecb_cold
767coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1050coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
768{ 1051{
769 const char *s = MgPV_nolen_const (mg); 1052 const char *s = MgPV_nolen_const (mg);
770 1053
771 if (*s == '_') 1054 if (*s == '_')
772 { 1055 {
773 SV **svp = 0; 1056 SV **svp = 0;
774 1057
775 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1058 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
776 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1059 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
777 1060
778 if (svp) 1061 if (svp)
779 { 1062 {
780 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1063 SV *ssv;
1064
1065 if (!*svp)
1066 ssv = &PL_sv_undef;
1067 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1068 ssv = sv_2mortal (newRV_inc (*svp));
1069 else
1070 ssv = *svp;
1071
1072 sv_setsv (sv, ssv);
781 return 0; 1073 return 0;
782 } 1074 }
783 } 1075 }
784 1076
785 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1077 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
786} 1078}
787 1079
788static int 1080static int ecb_cold
789coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1081coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
790{ 1082{
791 const char *s = MgPV_nolen_const (mg); 1083 const char *s = MgPV_nolen_const (mg);
792 1084
793 if (*s == '_') 1085 if (*s == '_')
… …
807 } 1099 }
808 1100
809 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1101 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
810} 1102}
811 1103
812static int 1104static int ecb_cold
813coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1105coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
814{ 1106{
815 const char *s = MgPV_nolen_const (mg); 1107 const char *s = MgPV_nolen_const (mg);
816 1108
817 if (*s == '_') 1109 if (*s == '_')
… …
822 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1114 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
823 1115
824 if (svp) 1116 if (svp)
825 { 1117 {
826 SV *old = *svp; 1118 SV *old = *svp;
827 *svp = newSVsv (sv); 1119 *svp = SvOK (sv) ? newSVsv (sv) : 0;
828 SvREFCNT_dec (old); 1120 SvREFCNT_dec (old);
829 return 0; 1121 return 0;
830 } 1122 }
831 } 1123 }
832 1124
… …
850slf_check_repeat (pTHX_ struct CoroSLF *frame) 1142slf_check_repeat (pTHX_ struct CoroSLF *frame)
851{ 1143{
852 return 1; 1144 return 1;
853} 1145}
854 1146
855static UNOP coro_setup_op; 1147static UNOP init_perl_op;
856 1148
857static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1149ecb_noinline static void /* noinline to keep it out of the transfer fast path */
858coro_setup (pTHX_ struct coro *coro) 1150init_perl (pTHX_ struct coro *coro)
859{ 1151{
860 /* 1152 /*
861 * emulate part of the perl startup here. 1153 * emulate part of the perl startup here.
862 */ 1154 */
863 coro_init_stacks (aTHX); 1155 coro_init_stacks (aTHX);
864 1156
865 PL_runops = RUNOPS_DEFAULT; 1157 PL_runops = RUNOPS_DEFAULT;
866 PL_curcop = &PL_compiling; 1158 PL_curcop = &PL_compiling;
867 PL_in_eval = EVAL_NULL; 1159 PL_in_eval = EVAL_NULL;
868 PL_comppad = 0; 1160 PL_comppad = 0;
1161 PL_comppad_name = 0;
1162 PL_comppad_name_fill = 0;
1163 PL_comppad_name_floor = 0;
869 PL_curpm = 0; 1164 PL_curpm = 0;
870 PL_curpad = 0; 1165 PL_curpad = 0;
871 PL_localizing = 0; 1166 PL_localizing = 0;
872 PL_dirty = 0;
873 PL_restartop = 0; 1167 PL_restartop = 0;
874#if PERL_VERSION_ATLEAST (5,10,0) 1168#if PERL_VERSION_ATLEAST (5,10,0)
875 PL_parser = 0; 1169 PL_parser = 0;
876#endif 1170#endif
1171 PL_hints = 0;
877 1172
878 /* recreate the die/warn hooks */ 1173 /* recreate the die/warn hooks */
879 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1174 PL_diehook = SvREFCNT_inc (rv_diehook);
880 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1175 PL_warnhook = SvREFCNT_inc (rv_warnhook);
881 1176
882 GvSV (PL_defgv) = newSV (0); 1177 GvSV (PL_defgv) = newSV (0);
883 GvAV (PL_defgv) = coro->args; coro->args = 0; 1178 GvAV (PL_defgv) = coro->args; coro->args = 0;
884 GvSV (PL_errgv) = newSV (0); 1179 GvSV (PL_errgv) = newSV (0);
885 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1180 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1181 GvHV (PL_hintgv) = newHV ();
1182#if PERL_VERSION_ATLEAST (5,10,0)
1183 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1184#endif
886 PL_rs = newSVsv (GvSV (irsgv)); 1185 PL_rs = newSVsv (GvSV (irsgv));
887 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1186 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
888 1187
889 { 1188 {
890 dSP; 1189 dSP;
… …
905 /* this newly created coroutine might be run on an existing cctx which most 1204 /* this newly created coroutine might be run on an existing cctx which most
906 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1205 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
907 */ 1206 */
908 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1207 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
909 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1208 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1209 slf_frame.destroy = 0;
910 1210
911 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1211 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
912 coro_setup_op.op_next = PL_op; 1212 init_perl_op.op_next = PL_op;
913 coro_setup_op.op_type = OP_ENTERSUB; 1213 init_perl_op.op_type = OP_ENTERSUB;
914 coro_setup_op.op_ppaddr = pp_slf; 1214 init_perl_op.op_ppaddr = pp_slf;
915 /* no flags etc. required, as an init function won't be called */ 1215 /* no flags etc. required, as an init function won't be called */
916 1216
917 PL_op = (OP *)&coro_setup_op; 1217 PL_op = (OP *)&init_perl_op;
918 1218
919 /* copy throw, in case it was set before coro_setup */ 1219 /* copy throw, in case it was set before init_perl */
920 CORO_THROW = coro->except; 1220 CORO_THROW = coro->except;
921}
922 1221
1222 SWAP_SVS (coro);
1223
1224 if (ecb_expect_false (enable_times))
1225 {
1226 coro_times_update ();
1227 coro_times_sub (coro);
1228 }
1229}
1230
923static void 1231static void
924coro_destruct (pTHX_ struct coro *coro) 1232coro_unwind_stacks (pTHX)
925{ 1233{
926 if (!IN_DESTRUCT) 1234 if (!IN_DESTRUCT)
927 { 1235 {
928 /* restore all saved variables and stuff */ 1236 /* restore all saved variables and stuff */
929 LEAVE_SCOPE (0); 1237 LEAVE_SCOPE (0);
… …
937 POPSTACK_TO (PL_mainstack); 1245 POPSTACK_TO (PL_mainstack);
938 1246
939 /* unwind main stack */ 1247 /* unwind main stack */
940 dounwind (-1); 1248 dounwind (-1);
941 } 1249 }
1250}
942 1251
943 SvREFCNT_dec (GvSV (PL_defgv)); 1252static void
944 SvREFCNT_dec (GvAV (PL_defgv)); 1253destroy_perl (pTHX_ struct coro *coro)
945 SvREFCNT_dec (GvSV (PL_errgv)); 1254{
946 SvREFCNT_dec (PL_defoutgv); 1255 SV *svf [9];
947 SvREFCNT_dec (PL_rs);
948 SvREFCNT_dec (GvSV (irsgv));
949 1256
950 SvREFCNT_dec (PL_diehook);
951 SvREFCNT_dec (PL_warnhook);
952 1257 {
1258 SV *old_current = SvRV (coro_current);
1259 struct coro *current = SvSTATE (old_current);
1260
1261 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1262
1263 save_perl (aTHX_ current);
1264
1265 /* this will cause transfer_check to croak on block*/
1266 SvRV_set (coro_current, (SV *)coro->hv);
1267
1268 load_perl (aTHX_ coro);
1269
1270 coro_unwind_stacks (aTHX);
1271
1272 /* restore swapped sv's */
1273 SWAP_SVS (coro);
1274
1275 coro_destruct_stacks (aTHX);
1276
1277 /* now save some sv's to be free'd later */
1278 svf [0] = GvSV (PL_defgv);
1279 svf [1] = (SV *)GvAV (PL_defgv);
1280 svf [2] = GvSV (PL_errgv);
1281 svf [3] = (SV *)PL_defoutgv;
1282 svf [4] = PL_rs;
1283 svf [5] = GvSV (irsgv);
1284 svf [6] = (SV *)GvHV (PL_hintgv);
1285 svf [7] = PL_diehook;
1286 svf [8] = PL_warnhook;
1287 assert (9 == sizeof (svf) / sizeof (*svf));
1288
1289 SvRV_set (coro_current, old_current);
1290
1291 load_perl (aTHX_ current);
1292 }
1293
1294 {
1295 unsigned int i;
1296
1297 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1298 SvREFCNT_dec (svf [i]);
1299
953 SvREFCNT_dec (coro->saved_deffh); 1300 SvREFCNT_dec (coro->saved_deffh);
954 SvREFCNT_dec (coro->rouse_cb); 1301 SvREFCNT_dec (coro->rouse_cb);
955 SvREFCNT_dec (coro->invoke_cb); 1302 SvREFCNT_dec (coro->invoke_cb);
956 SvREFCNT_dec (coro->invoke_av); 1303 SvREFCNT_dec (coro->invoke_av);
957 1304 SvREFCNT_dec (coro->on_enter_xs);
958 coro_destruct_stacks (aTHX); 1305 SvREFCNT_dec (coro->on_leave_xs);
1306 }
959} 1307}
960 1308
961INLINE void 1309ecb_inline void
962free_coro_mortal (pTHX) 1310free_coro_mortal (pTHX)
963{ 1311{
964 if (expect_true (coro_mortal)) 1312 if (ecb_expect_true (coro_mortal))
965 { 1313 {
966 SvREFCNT_dec (coro_mortal); 1314 SvREFCNT_dec ((SV *)coro_mortal);
967 coro_mortal = 0; 1315 coro_mortal = 0;
968 } 1316 }
969} 1317}
970 1318
971static int 1319static int
… …
1025 1373
1026 if (PL_curcop != &PL_compiling) 1374 if (PL_curcop != &PL_compiling)
1027 { 1375 {
1028 SV **cb; 1376 SV **cb;
1029 1377
1030 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) 1378 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1031 { 1379 {
1032 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1380 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1033 1381
1034 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1382 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1035 { 1383 {
… …
1104 1452
1105 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1453 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1106} 1454}
1107 1455
1108/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1456/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1109static void NOINLINE 1457static void ecb_noinline
1110cctx_prepare (pTHX) 1458cctx_prepare (pTHX)
1111{ 1459{
1112 PL_top_env = &PL_start_env; 1460 PL_top_env = &PL_start_env;
1113 1461
1114 if (cctx_current->flags & CC_TRACE) 1462 if (cctx_current->flags & CC_TRACE)
… …
1125 slf_frame.prepare = slf_prepare_set_stacklevel; 1473 slf_frame.prepare = slf_prepare_set_stacklevel;
1126 slf_frame.check = slf_check_set_stacklevel; 1474 slf_frame.check = slf_check_set_stacklevel;
1127} 1475}
1128 1476
1129/* the tail of transfer: execute stuff we can only do after a transfer */ 1477/* the tail of transfer: execute stuff we can only do after a transfer */
1130INLINE void 1478ecb_inline void
1131transfer_tail (pTHX) 1479transfer_tail (pTHX)
1132{ 1480{
1133 free_coro_mortal (aTHX); 1481 free_coro_mortal (aTHX);
1482}
1483
1484/* try to exit the same way perl's main function would do */
1485/* we do not bother resetting the environment or other things *7
1486/* that are not, uhm, essential */
1487/* this obviously also doesn't work when perl is embedded */
1488static void ecb_noinline ecb_cold
1489perlish_exit (pTHX)
1490{
1491 int exitstatus = perl_destruct (PL_curinterp);
1492 perl_free (PL_curinterp);
1493 exit (exitstatus);
1134} 1494}
1135 1495
1136/* 1496/*
1137 * this is a _very_ stripped down perl interpreter ;) 1497 * this is a _very_ stripped down perl interpreter ;)
1138 */ 1498 */
… …
1160 /* somebody or something will hit me for both perl_run and PL_restartop */ 1520 /* somebody or something will hit me for both perl_run and PL_restartop */
1161 PL_restartop = PL_op; 1521 PL_restartop = PL_op;
1162 perl_run (PL_curinterp); 1522 perl_run (PL_curinterp);
1163 /* 1523 /*
1164 * Unfortunately, there is no way to get at the return values of the 1524 * Unfortunately, there is no way to get at the return values of the
1165 * coro body here, as perl_run destroys these 1525 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1526 * runtime errors here, as this is just a random interpreter, not a thread.
1166 */ 1527 */
1167 1528
1168 /* 1529 /*
1169 * If perl-run returns we assume exit() was being called or the coro 1530 * If perl-run returns we assume exit() was being called or the coro
1170 * fell off the end, which seems to be the only valid (non-bug) 1531 * fell off the end, which seems to be the only valid (non-bug)
1171 * reason for perl_run to return. We try to exit by jumping to the 1532 * reason for perl_run to return. We try to mimic whatever perl is normally
1172 * bootstrap-time "top" top_env, as we cannot restore the "main" 1533 * doing in that case. YMMV.
1173 * coroutine as Coro has no such concept
1174 */ 1534 */
1175 PL_top_env = main_top_env; 1535 perlish_exit (aTHX);
1176 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1177 } 1536 }
1178} 1537}
1179 1538
1180static coro_cctx * 1539static coro_cctx *
1181cctx_new () 1540cctx_new (void)
1182{ 1541{
1183 coro_cctx *cctx; 1542 coro_cctx *cctx;
1184 1543
1185 ++cctx_count; 1544 ++cctx_count;
1186 New (0, cctx, 1, coro_cctx); 1545 New (0, cctx, 1, coro_cctx);
… …
1192 return cctx; 1551 return cctx;
1193} 1552}
1194 1553
1195/* create a new cctx only suitable as source */ 1554/* create a new cctx only suitable as source */
1196static coro_cctx * 1555static coro_cctx *
1197cctx_new_empty () 1556cctx_new_empty (void)
1198{ 1557{
1199 coro_cctx *cctx = cctx_new (); 1558 coro_cctx *cctx = cctx_new ();
1200 1559
1201 cctx->sptr = 0; 1560 cctx->stack.sptr = 0;
1202 coro_create (&cctx->cctx, 0, 0, 0, 0); 1561 coro_create (&cctx->cctx, 0, 0, 0, 0);
1203 1562
1204 return cctx; 1563 return cctx;
1205} 1564}
1206 1565
1207/* create a new cctx suitable as destination/running a perl interpreter */ 1566/* create a new cctx suitable as destination/running a perl interpreter */
1208static coro_cctx * 1567static coro_cctx *
1209cctx_new_run () 1568cctx_new_run (void)
1210{ 1569{
1211 coro_cctx *cctx = cctx_new (); 1570 coro_cctx *cctx = cctx_new ();
1212 void *stack_start;
1213 size_t stack_size;
1214 1571
1215#if HAVE_MMAP 1572 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1216 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1217 /* mmap supposedly does allocate-on-write for us */
1218 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1219
1220 if (cctx->sptr != (void *)-1)
1221 {
1222 #if CORO_STACKGUARD
1223 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1224 #endif
1225 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1226 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1227 cctx->flags |= CC_MAPPED;
1228 } 1573 {
1229 else
1230#endif
1231 {
1232 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1233 New (0, cctx->sptr, cctx_stacksize, long);
1234
1235 if (!cctx->sptr)
1236 {
1237 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1574 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1238 _exit (EXIT_FAILURE); 1575 _exit (EXIT_FAILURE);
1239 }
1240
1241 stack_start = cctx->sptr;
1242 stack_size = cctx->ssize;
1243 } 1576 }
1244 1577
1245 #if CORO_USE_VALGRIND
1246 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1247 #endif
1248
1249 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1578 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1250 1579
1251 return cctx; 1580 return cctx;
1252} 1581}
1253 1582
1254static void 1583static void
1255cctx_destroy (coro_cctx *cctx) 1584cctx_destroy (coro_cctx *cctx)
1256{ 1585{
1257 if (!cctx) 1586 if (!cctx)
1258 return; 1587 return;
1259 1588
1260 assert (cctx != cctx_current);//D temporary 1589 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1261 1590
1262 --cctx_count; 1591 --cctx_count;
1263 coro_destroy (&cctx->cctx); 1592 coro_destroy (&cctx->cctx);
1264 1593
1265 /* coro_transfer creates new, empty cctx's */ 1594 coro_stack_free (&cctx->stack);
1266 if (cctx->sptr)
1267 {
1268 #if CORO_USE_VALGRIND
1269 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1270 #endif
1271
1272#if HAVE_MMAP
1273 if (cctx->flags & CC_MAPPED)
1274 munmap (cctx->sptr, cctx->ssize);
1275 else
1276#endif
1277 Safefree (cctx->sptr);
1278 }
1279 1595
1280 Safefree (cctx); 1596 Safefree (cctx);
1281} 1597}
1282 1598
1283/* wether this cctx should be destructed */ 1599/* wether this cctx should be destructed */
1284#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1600#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1285 1601
1286static coro_cctx * 1602static coro_cctx *
1287cctx_get (pTHX) 1603cctx_get (pTHX)
1288{ 1604{
1289 while (expect_true (cctx_first)) 1605 while (ecb_expect_true (cctx_first))
1290 { 1606 {
1291 coro_cctx *cctx = cctx_first; 1607 coro_cctx *cctx = cctx_first;
1292 cctx_first = cctx->next; 1608 cctx_first = cctx->next;
1293 --cctx_idle; 1609 --cctx_idle;
1294 1610
1295 if (expect_true (!CCTX_EXPIRED (cctx))) 1611 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1296 return cctx; 1612 return cctx;
1297 1613
1298 cctx_destroy (cctx); 1614 cctx_destroy (cctx);
1299 } 1615 }
1300 1616
… …
1302} 1618}
1303 1619
1304static void 1620static void
1305cctx_put (coro_cctx *cctx) 1621cctx_put (coro_cctx *cctx)
1306{ 1622{
1307 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1623 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1308 1624
1309 /* free another cctx if overlimit */ 1625 /* free another cctx if overlimit */
1310 if (expect_false (cctx_idle >= cctx_max_idle)) 1626 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1311 { 1627 {
1312 coro_cctx *first = cctx_first; 1628 coro_cctx *first = cctx_first;
1313 cctx_first = first->next; 1629 cctx_first = first->next;
1314 --cctx_idle; 1630 --cctx_idle;
1315 1631
… …
1326static void 1642static void
1327transfer_check (pTHX_ struct coro *prev, struct coro *next) 1643transfer_check (pTHX_ struct coro *prev, struct coro *next)
1328{ 1644{
1329 /* TODO: throwing up here is considered harmful */ 1645 /* TODO: throwing up here is considered harmful */
1330 1646
1331 if (expect_true (prev != next)) 1647 if (ecb_expect_true (prev != next))
1332 { 1648 {
1333 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1649 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1334 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1650 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1335 1651
1336 if (expect_false (next->flags & CF_RUNNING)) 1652 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1337 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1338
1339 if (expect_false (next->flags & CF_DESTROYED))
1340 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1653 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1341 1654
1342#if !PERL_VERSION_ATLEAST (5,10,0) 1655#if !PERL_VERSION_ATLEAST (5,10,0)
1343 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1656 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1344 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1657 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1345#endif 1658#endif
1346 } 1659 }
1347} 1660}
1348 1661
1349/* always use the TRANSFER macro */ 1662/* always use the TRANSFER macro */
1350static void NOINLINE /* noinline so we have a fixed stackframe */ 1663static void ecb_noinline /* noinline so we have a fixed stackframe */
1351transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1664transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1352{ 1665{
1353 dSTACKLEVEL; 1666 dSTACKLEVEL;
1354 1667
1355 /* sometimes transfer is only called to set idle_sp */ 1668 /* sometimes transfer is only called to set idle_sp */
1356 if (expect_false (!prev)) 1669 if (ecb_expect_false (!prev))
1357 { 1670 {
1358 cctx_current->idle_sp = STACKLEVEL; 1671 cctx_current->idle_sp = STACKLEVEL;
1359 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1672 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1360 } 1673 }
1361 else if (expect_true (prev != next)) 1674 else if (ecb_expect_true (prev != next))
1362 { 1675 {
1363 coro_cctx *cctx_prev; 1676 coro_cctx *cctx_prev;
1364 1677
1365 if (expect_false (prev->flags & CF_NEW)) 1678 if (ecb_expect_false (prev->flags & CF_NEW))
1366 { 1679 {
1367 /* create a new empty/source context */ 1680 /* create a new empty/source context */
1368 prev->flags &= ~CF_NEW; 1681 prev->flags &= ~CF_NEW;
1369 prev->flags |= CF_RUNNING; 1682 prev->flags |= CF_RUNNING;
1370 } 1683 }
… …
1373 next->flags |= CF_RUNNING; 1686 next->flags |= CF_RUNNING;
1374 1687
1375 /* first get rid of the old state */ 1688 /* first get rid of the old state */
1376 save_perl (aTHX_ prev); 1689 save_perl (aTHX_ prev);
1377 1690
1378 if (expect_false (next->flags & CF_NEW)) 1691 if (ecb_expect_false (next->flags & CF_NEW))
1379 { 1692 {
1380 /* need to start coroutine */ 1693 /* need to start coroutine */
1381 next->flags &= ~CF_NEW; 1694 next->flags &= ~CF_NEW;
1382 /* setup coroutine call */ 1695 /* setup coroutine call */
1383 coro_setup (aTHX_ next); 1696 init_perl (aTHX_ next);
1384 } 1697 }
1385 else 1698 else
1386 load_perl (aTHX_ next); 1699 load_perl (aTHX_ next);
1387 1700
1388 /* possibly untie and reuse the cctx */ 1701 /* possibly untie and reuse the cctx */
1389 if (expect_true ( 1702 if (ecb_expect_true (
1390 cctx_current->idle_sp == STACKLEVEL 1703 cctx_current->idle_sp == STACKLEVEL
1391 && !(cctx_current->flags & CC_TRACE) 1704 && !(cctx_current->flags & CC_TRACE)
1392 && !force_cctx 1705 && !force_cctx
1393 )) 1706 ))
1394 { 1707 {
1395 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1708 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1396 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1709 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1397 1710
1398 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1711 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1399 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1712 /* without this the next cctx_get might destroy the running cctx while still in use */
1400 if (expect_false (CCTX_EXPIRED (cctx_current))) 1713 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1401 if (!next->cctx) 1714 if (ecb_expect_true (!next->cctx))
1402 next->cctx = cctx_get (aTHX); 1715 next->cctx = cctx_get (aTHX);
1403 1716
1404 cctx_put (cctx_current); 1717 cctx_put (cctx_current);
1405 assert (!prev->cctx);//D temporary
1406 } 1718 }
1407 else 1719 else
1408 prev->cctx = cctx_current; 1720 prev->cctx = cctx_current;
1409 1721
1410 ++next->usecount; 1722 ++next->usecount;
1411 1723
1412 cctx_prev = cctx_current; 1724 cctx_prev = cctx_current;
1413 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1725 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1414 1726
1415 next->cctx = 0; 1727 next->cctx = 0;
1416 1728
1417 if (expect_false (cctx_prev != cctx_current)) 1729 if (ecb_expect_false (cctx_prev != cctx_current))
1418 { 1730 {
1419 cctx_prev->top_env = PL_top_env; 1731 cctx_prev->top_env = PL_top_env;
1420 PL_top_env = cctx_current->top_env; 1732 PL_top_env = cctx_current->top_env;
1421 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1733 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1422 } 1734 }
… …
1428#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1740#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1429#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1741#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1430 1742
1431/** high level stuff ********************************************************/ 1743/** high level stuff ********************************************************/
1432 1744
1745/* this function is actually Coro, not Coro::State, but we call it from here */
1746/* because it is convenient - but it hasn't been declared yet for that reason */
1433static int 1747static void
1748coro_call_on_destroy (pTHX_ struct coro *coro);
1749
1750static void
1434coro_state_destroy (pTHX_ struct coro *coro) 1751coro_state_destroy (pTHX_ struct coro *coro)
1435{ 1752{
1436 if (coro->flags & CF_DESTROYED) 1753 if (coro->flags & CF_ZOMBIE)
1437 return 0; 1754 return;
1438 1755
1439 if (coro->on_destroy)
1440 coro->on_destroy (aTHX_ coro); 1756 slf_destroy (aTHX_ coro);
1441 1757
1442 coro->flags |= CF_DESTROYED; 1758 coro->flags |= CF_ZOMBIE;
1443 1759
1444 if (coro->flags & CF_READY) 1760 if (coro->flags & CF_READY)
1445 { 1761 {
1446 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1762 /* reduce nready, as destroying a ready coro effectively unreadies it */
1447 /* alternative: look through all ready queues and remove the coro */ 1763 /* alternative: look through all ready queues and remove the coro */
1448 --coro_nready; 1764 --coro_nready;
1449 } 1765 }
1450 else 1766 else
1451 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1767 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1452 1768
1453 if (coro->mainstack && coro->mainstack != main_mainstack) 1769 if (coro->next) coro->next->prev = coro->prev;
1454 { 1770 if (coro->prev) coro->prev->next = coro->next;
1455 struct coro temp; 1771 if (coro == coro_first) coro_first = coro->next;
1456 1772
1457 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1773 if (coro->mainstack
1458 1774 && coro->mainstack != main_mainstack
1459 save_perl (aTHX_ &temp); 1775 && coro->slot
1776 && !PL_dirty)
1460 load_perl (aTHX_ coro); 1777 destroy_perl (aTHX_ coro);
1461
1462 coro_destruct (aTHX_ coro);
1463
1464 load_perl (aTHX_ &temp);
1465
1466 coro->slot = 0;
1467 }
1468 1778
1469 cctx_destroy (coro->cctx); 1779 cctx_destroy (coro->cctx);
1470 SvREFCNT_dec (coro->startcv); 1780 SvREFCNT_dec (coro->startcv);
1471 SvREFCNT_dec (coro->args); 1781 SvREFCNT_dec (coro->args);
1782 SvREFCNT_dec (coro->swap_sv);
1472 SvREFCNT_dec (CORO_THROW); 1783 SvREFCNT_dec (CORO_THROW);
1473 1784
1474 if (coro->next) coro->next->prev = coro->prev; 1785 coro_call_on_destroy (aTHX_ coro);
1475 if (coro->prev) coro->prev->next = coro->next;
1476 if (coro == coro_first) coro_first = coro->next;
1477 1786
1478 return 1; 1787 /* more destruction mayhem in coro_state_free */
1479} 1788}
1480 1789
1481static int 1790static int
1482coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1791coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1483{ 1792{
1484 struct coro *coro = (struct coro *)mg->mg_ptr; 1793 struct coro *coro = (struct coro *)mg->mg_ptr;
1485 mg->mg_ptr = 0; 1794 mg->mg_ptr = 0;
1486 1795
1487 coro->hv = 0;
1488
1489 if (--coro->refcnt < 0)
1490 {
1491 coro_state_destroy (aTHX_ coro); 1796 coro_state_destroy (aTHX_ coro);
1797 SvREFCNT_dec (coro->on_destroy);
1798 SvREFCNT_dec (coro->status);
1799
1492 Safefree (coro); 1800 Safefree (coro);
1493 }
1494 1801
1495 return 0; 1802 return 0;
1496} 1803}
1497 1804
1498static int 1805static int ecb_cold
1499coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1806coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1500{ 1807{
1501 struct coro *coro = (struct coro *)mg->mg_ptr; 1808 /* called when perl clones the current process the slow way (windows process emulation) */
1502 1809 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1503 ++coro->refcnt; 1810 mg->mg_ptr = 0;
1811 mg->mg_virtual = 0;
1504 1812
1505 return 0; 1813 return 0;
1506} 1814}
1507 1815
1508static MGVTBL coro_state_vtbl = { 1816static MGVTBL coro_state_vtbl = {
… …
1531 1839
1532 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1840 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1533 TRANSFER (ta, 1); 1841 TRANSFER (ta, 1);
1534} 1842}
1535 1843
1536/*****************************************************************************/
1537/* gensub: simple closure generation utility */
1538
1539#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1540
1541/* create a closure from XS, returns a code reference */
1542/* the arg can be accessed via GENSUB_ARG from the callback */
1543/* the callback must use dXSARGS/XSRETURN */
1544static SV *
1545gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1546{
1547 CV *cv = (CV *)newSV (0);
1548
1549 sv_upgrade ((SV *)cv, SVt_PVCV);
1550
1551 CvANON_on (cv);
1552 CvISXSUB_on (cv);
1553 CvXSUB (cv) = xsub;
1554 GENSUB_ARG = arg;
1555
1556 return newRV_noinc ((SV *)cv);
1557}
1558
1559/** Coro ********************************************************************/ 1844/** Coro ********************************************************************/
1560 1845
1561INLINE void 1846ecb_inline void
1562coro_enq (pTHX_ struct coro *coro) 1847coro_enq (pTHX_ struct coro *coro)
1563{ 1848{
1564 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1849 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1565}
1566 1850
1567INLINE SV * 1851 SvREFCNT_inc_NN (coro->hv);
1852
1853 coro->next_ready = 0;
1854 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1855 ready [1] = coro;
1856}
1857
1858ecb_inline struct coro *
1568coro_deq (pTHX) 1859coro_deq (pTHX)
1569{ 1860{
1570 int prio; 1861 int prio;
1571 1862
1572 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1863 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1573 if (AvFILLp (coro_ready [prio]) >= 0) 1864 {
1574 return av_shift (coro_ready [prio]); 1865 struct coro **ready = coro_ready [prio];
1866
1867 if (ready [0])
1868 {
1869 struct coro *coro = ready [0];
1870 ready [0] = coro->next_ready;
1871 return coro;
1872 }
1873 }
1575 1874
1576 return 0; 1875 return 0;
1876}
1877
1878static void
1879invoke_sv_ready_hook_helper (void)
1880{
1881 dTHX;
1882 dSP;
1883
1884 ENTER;
1885 SAVETMPS;
1886
1887 PUSHMARK (SP);
1888 PUTBACK;
1889 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1890
1891 FREETMPS;
1892 LEAVE;
1577} 1893}
1578 1894
1579static int 1895static int
1580api_ready (pTHX_ SV *coro_sv) 1896api_ready (pTHX_ SV *coro_sv)
1581{ 1897{
1582 struct coro *coro;
1583 SV *sv_hook;
1584 void (*xs_hook)(void);
1585
1586 if (SvROK (coro_sv))
1587 coro_sv = SvRV (coro_sv);
1588
1589 coro = SvSTATE (coro_sv); 1898 struct coro *coro = SvSTATE (coro_sv);
1590 1899
1591 if (coro->flags & CF_READY) 1900 if (coro->flags & CF_READY)
1592 return 0; 1901 return 0;
1593 1902
1594 coro->flags |= CF_READY; 1903 coro->flags |= CF_READY;
1595 1904
1596 sv_hook = coro_nready ? 0 : coro_readyhook;
1597 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1598
1599 coro_enq (aTHX_ coro); 1905 coro_enq (aTHX_ coro);
1600 ++coro_nready;
1601 1906
1602 if (sv_hook) 1907 if (!coro_nready++)
1603 { 1908 if (coroapi.readyhook)
1604 dSP; 1909 coroapi.readyhook ();
1605
1606 ENTER;
1607 SAVETMPS;
1608
1609 PUSHMARK (SP);
1610 PUTBACK;
1611 call_sv (sv_hook, G_VOID | G_DISCARD);
1612
1613 FREETMPS;
1614 LEAVE;
1615 }
1616
1617 if (xs_hook)
1618 xs_hook ();
1619 1910
1620 return 1; 1911 return 1;
1621} 1912}
1622 1913
1623static int 1914static int
… …
1625{ 1916{
1626 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1917 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1627} 1918}
1628 1919
1629/* expects to own a reference to next->hv */ 1920/* expects to own a reference to next->hv */
1630INLINE void 1921ecb_inline void
1631prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1922prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1632{ 1923{
1633 SV *prev_sv = SvRV (coro_current); 1924 SV *prev_sv = SvRV (coro_current);
1634 1925
1635 ta->prev = SvSTATE_hv (prev_sv); 1926 ta->prev = SvSTATE_hv (prev_sv);
… …
1646static void 1937static void
1647prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1938prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1648{ 1939{
1649 for (;;) 1940 for (;;)
1650 { 1941 {
1651 SV *next_sv = coro_deq (aTHX); 1942 struct coro *next = coro_deq (aTHX);
1652 1943
1653 if (expect_true (next_sv)) 1944 if (ecb_expect_true (next))
1654 { 1945 {
1655 struct coro *next = SvSTATE_hv (next_sv);
1656
1657 /* cannot transfer to destroyed coros, skip and look for next */ 1946 /* cannot transfer to destroyed coros, skip and look for next */
1658 if (expect_false (next->flags & CF_DESTROYED)) 1947 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1659 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1948 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1660 else 1949 else
1661 { 1950 {
1662 next->flags &= ~CF_READY; 1951 next->flags &= ~CF_READY;
1663 --coro_nready; 1952 --coro_nready;
1664 1953
… …
1667 } 1956 }
1668 } 1957 }
1669 else 1958 else
1670 { 1959 {
1671 /* nothing to schedule: call the idle handler */ 1960 /* nothing to schedule: call the idle handler */
1961 if (SvROK (sv_idle)
1962 && SvOBJECT (SvRV (sv_idle)))
1963 {
1964 if (SvRV (sv_idle) == SvRV (coro_current))
1965 {
1966 require_pv ("Carp");
1967
1968 {
1969 dSP;
1970
1971 ENTER;
1972 SAVETMPS;
1973
1974 PUSHMARK (SP);
1975 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1976 PUTBACK;
1977 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1978
1979 FREETMPS;
1980 LEAVE;
1981 }
1982 }
1983
1984 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1985 api_ready (aTHX_ SvRV (sv_idle));
1986 --coro_nready;
1987 }
1988 else
1989 {
1990 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1672 dSP; 1991 dSP;
1673 1992
1674 ENTER; 1993 ENTER;
1675 SAVETMPS; 1994 SAVETMPS;
1676 1995
1677 PUSHMARK (SP); 1996 PUSHMARK (SP);
1678 PUTBACK; 1997 PUTBACK;
1679 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1998 call_sv (sv_idle, G_VOID | G_DISCARD);
1680 1999
1681 FREETMPS; 2000 FREETMPS;
1682 LEAVE; 2001 LEAVE;
2002 }
1683 } 2003 }
1684 } 2004 }
1685} 2005}
1686 2006
1687INLINE void 2007ecb_inline void
1688prepare_cede (pTHX_ struct coro_transfer_args *ta) 2008prepare_cede (pTHX_ struct coro_transfer_args *ta)
1689{ 2009{
1690 api_ready (aTHX_ coro_current); 2010 api_ready (aTHX_ coro_current);
1691 prepare_schedule (aTHX_ ta); 2011 prepare_schedule (aTHX_ ta);
1692} 2012}
1693 2013
1694INLINE void 2014ecb_inline void
1695prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2015prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1696{ 2016{
1697 SV *prev = SvRV (coro_current); 2017 SV *prev = SvRV (coro_current);
1698 2018
1699 if (coro_nready) 2019 if (coro_nready)
… …
1729{ 2049{
1730 struct coro_transfer_args ta; 2050 struct coro_transfer_args ta;
1731 2051
1732 prepare_cede (aTHX_ &ta); 2052 prepare_cede (aTHX_ &ta);
1733 2053
1734 if (expect_true (ta.prev != ta.next)) 2054 if (ecb_expect_true (ta.prev != ta.next))
1735 { 2055 {
1736 TRANSFER (ta, 1); 2056 TRANSFER (ta, 1);
1737 return 1; 2057 return 1;
1738 } 2058 }
1739 else 2059 else
… …
1758static void 2078static void
1759api_trace (pTHX_ SV *coro_sv, int flags) 2079api_trace (pTHX_ SV *coro_sv, int flags)
1760{ 2080{
1761 struct coro *coro = SvSTATE (coro_sv); 2081 struct coro *coro = SvSTATE (coro_sv);
1762 2082
2083 if (coro->flags & CF_RUNNING)
2084 croak ("cannot enable tracing on a running coroutine, caught");
2085
1763 if (flags & CC_TRACE) 2086 if (flags & CC_TRACE)
1764 { 2087 {
1765 if (!coro->cctx) 2088 if (!coro->cctx)
1766 coro->cctx = cctx_new_run (); 2089 coro->cctx = cctx_new_run ();
1767 else if (!(coro->cctx->flags & CC_TRACE)) 2090 else if (!(coro->cctx->flags & CC_TRACE))
1768 croak ("cannot enable tracing on coroutine with custom stack,"); 2091 croak ("cannot enable tracing on coroutine with custom stack, caught");
1769 2092
1770 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2093 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1771 } 2094 }
1772 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2095 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1773 { 2096 {
… …
1779 coro->slot->runops = RUNOPS_DEFAULT; 2102 coro->slot->runops = RUNOPS_DEFAULT;
1780 } 2103 }
1781} 2104}
1782 2105
1783static void 2106static void
2107coro_push_av (pTHX_ AV *av, I32 gimme_v)
2108{
2109 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2110 {
2111 dSP;
2112
2113 if (gimme_v == G_SCALAR)
2114 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2115 else
2116 {
2117 int i;
2118 EXTEND (SP, AvFILLp (av) + 1);
2119
2120 for (i = 0; i <= AvFILLp (av); ++i)
2121 PUSHs (AvARRAY (av)[i]);
2122 }
2123
2124 PUTBACK;
2125 }
2126}
2127
2128static void
2129coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2130{
2131 if (!coro->on_destroy)
2132 coro->on_destroy = newAV ();
2133
2134 av_push (coro->on_destroy, cb);
2135}
2136
2137static void
2138slf_destroy_join (pTHX_ struct CoroSLF *frame)
2139{
2140 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2141}
2142
2143static int
2144slf_check_join (pTHX_ struct CoroSLF *frame)
2145{
2146 struct coro *coro = (struct coro *)frame->data;
2147
2148 if (!coro->status)
2149 return 1;
2150
2151 frame->destroy = 0;
2152
2153 coro_push_av (aTHX_ coro->status, GIMME_V);
2154
2155 SvREFCNT_dec ((SV *)coro->hv);
2156
2157 return 0;
2158}
2159
2160static void
2161slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2162{
2163 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2164
2165 if (items > 1)
2166 croak ("join called with too many arguments");
2167
2168 if (coro->status)
2169 frame->prepare = prepare_nop;
2170 else
2171 {
2172 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2173 frame->prepare = prepare_schedule;
2174 }
2175
2176 frame->check = slf_check_join;
2177 frame->destroy = slf_destroy_join;
2178 frame->data = (void *)coro;
2179 SvREFCNT_inc (coro->hv);
2180}
2181
2182static void
1784coro_call_on_destroy (pTHX_ struct coro *coro) 2183coro_call_on_destroy (pTHX_ struct coro *coro)
1785{ 2184{
1786 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2185 AV *od = coro->on_destroy;
1787 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1788 2186
1789 if (on_destroyp) 2187 if (!od)
1790 { 2188 return;
1791 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1792 2189
2190 coro->on_destroy = 0;
2191 sv_2mortal ((SV *)od);
2192
1793 while (AvFILLp (on_destroy) >= 0) 2193 while (AvFILLp (od) >= 0)
2194 {
2195 SV *cb = sv_2mortal (av_pop (od));
2196
2197 /* coro hv's (and only hv's at the moment) are supported as well */
2198 if (SvSTATEhv_p (aTHX_ cb))
2199 api_ready (aTHX_ cb);
2200 else
1794 { 2201 {
1795 dSP; /* don't disturb outer sp */ 2202 dSP; /* don't disturb outer sp */
1796 SV *cb = av_pop (on_destroy);
1797
1798 PUSHMARK (SP); 2203 PUSHMARK (SP);
1799 2204
1800 if (statusp) 2205 if (coro->status)
1801 { 2206 {
1802 int i; 2207 PUTBACK;
1803 AV *status = (AV *)SvRV (*statusp); 2208 coro_push_av (aTHX_ coro->status, G_ARRAY);
1804 EXTEND (SP, AvFILLp (status) + 1); 2209 SPAGAIN;
1805
1806 for (i = 0; i <= AvFILLp (status); ++i)
1807 PUSHs (AvARRAY (status)[i]);
1808 } 2210 }
1809 2211
1810 PUTBACK; 2212 PUTBACK;
1811 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2213 call_sv (cb, G_VOID | G_DISCARD);
1812 } 2214 }
1813 } 2215 }
1814} 2216}
1815 2217
1816static void 2218static void
1817slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2219coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1818{ 2220{
2221 AV *av;
2222
2223 if (coro->status)
2224 {
2225 av = coro->status;
2226 av_clear (av);
2227 }
2228 else
2229 av = coro->status = newAV ();
2230
2231 /* items are actually not so common, so optimise for this case */
2232 if (items)
2233 {
1819 int i; 2234 int i;
1820 HV *hv = (HV *)SvRV (coro_current);
1821 AV *av = newAV ();
1822 2235
1823 av_extend (av, items - 1); 2236 av_extend (av, items - 1);
2237
1824 for (i = 0; i < items; ++i) 2238 for (i = 0; i < items; ++i)
1825 av_push (av, SvREFCNT_inc_NN (arg [i])); 2239 av_push (av, SvREFCNT_inc_NN (arg [i]));
2240 }
2241}
1826 2242
1827 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2243static void
1828 2244slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2245{
1829 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2246 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1830 api_ready (aTHX_ sv_manager); 2247 api_ready (aTHX_ sv_manager);
1831 2248
1832 frame->prepare = prepare_schedule; 2249 frame->prepare = prepare_schedule;
1833 frame->check = slf_check_repeat; 2250 frame->check = slf_check_repeat;
2251
2252 /* as a minor optimisation, we could unwind all stacks here */
2253 /* but that puts extra pressure on pp_slf, and is not worth much */
2254 /*coro_unwind_stacks (aTHX);*/
2255}
2256
2257static void
2258slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2259{
2260 HV *coro_hv = (HV *)SvRV (coro_current);
2261
2262 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2263 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2264}
2265
2266static void
2267slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2268{
2269 HV *coro_hv;
2270 struct coro *coro;
2271
2272 if (items <= 0)
2273 croak ("Coro::cancel called without coro object,");
2274
2275 coro = SvSTATE (arg [0]);
2276 coro_hv = coro->hv;
2277
2278 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2279
2280 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2281 {
2282 /* coro currently busy cancelling something, so just notify it */
2283 coro->slf_frame.data = (void *)coro;
2284
2285 frame->prepare = prepare_nop;
2286 frame->check = slf_check_nop;
2287 }
2288 else if (coro_hv == (HV *)SvRV (coro_current))
2289 {
2290 /* cancelling the current coro is allowed, and equals terminate */
2291 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2292 }
2293 else
2294 {
2295 struct coro *self = SvSTATE_current;
2296
2297 if (!self)
2298 croak ("Coro::cancel called outside of thread content,");
2299
2300 /* otherwise we cancel directly, purely for speed reasons
2301 * unfortunately, this requires some magic trickery, as
2302 * somebody else could cancel us, so we have to fight the cancellation.
2303 * this is ugly, and hopefully fully worth the extra speed.
2304 * besides, I can't get the slow-but-safe version working...
2305 */
2306 slf_frame.data = 0;
2307 self->flags |= CF_NOCANCEL;
2308 coro_state_destroy (aTHX_ coro);
2309 self->flags &= ~CF_NOCANCEL;
2310
2311 if (slf_frame.data)
2312 {
2313 /* while we were busy we have been cancelled, so terminate */
2314 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2315 }
2316 else
2317 {
2318 frame->prepare = prepare_nop;
2319 frame->check = slf_check_nop;
2320 }
2321 }
2322}
2323
2324static int
2325slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2326{
2327 frame->prepare = 0;
2328 coro_unwind_stacks (aTHX);
2329
2330 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2331
2332 return 1;
2333}
2334
2335static int
2336safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2337{
2338 if (coro->cctx)
2339 croak ("coro inside C callback, unable to cancel at this time, caught");
2340
2341 if (coro->flags & CF_NEW)
2342 {
2343 coro_set_status (aTHX_ coro, arg, items);
2344 coro_state_destroy (aTHX_ coro);
2345 }
2346 else
2347 {
2348 if (!coro->slf_frame.prepare)
2349 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2350
2351 slf_destroy (aTHX_ coro);
2352
2353 coro_set_status (aTHX_ coro, arg, items);
2354 coro->slf_frame.prepare = prepare_nop;
2355 coro->slf_frame.check = slf_check_safe_cancel;
2356
2357 api_ready (aTHX_ (SV *)coro->hv);
2358 }
2359
2360 return 1;
1834} 2361}
1835 2362
1836/*****************************************************************************/ 2363/*****************************************************************************/
1837/* async pool handler */ 2364/* async pool handler */
1838 2365
… …
1869slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2396slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1870{ 2397{
1871 HV *hv = (HV *)SvRV (coro_current); 2398 HV *hv = (HV *)SvRV (coro_current);
1872 struct coro *coro = SvSTATE_hv ((SV *)hv); 2399 struct coro *coro = SvSTATE_hv ((SV *)hv);
1873 2400
1874 if (expect_true (coro->saved_deffh)) 2401 if (ecb_expect_true (coro->saved_deffh))
1875 { 2402 {
1876 /* subsequent iteration */ 2403 /* subsequent iteration */
1877 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2404 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1878 coro->saved_deffh = 0; 2405 coro->saved_deffh = 0;
1879 2406
1880 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2407 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1881 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2408 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1882 { 2409 {
1883 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2410 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1884 coro->invoke_av = newAV (); 2411 return;
1885
1886 frame->prepare = prepare_nop;
1887 } 2412 }
1888 else 2413 else
1889 { 2414 {
1890 av_clear (GvAV (PL_defgv)); 2415 av_clear (GvAV (PL_defgv));
1891 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2416 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1916 2441
1917static void 2442static void
1918coro_rouse_callback (pTHX_ CV *cv) 2443coro_rouse_callback (pTHX_ CV *cv)
1919{ 2444{
1920 dXSARGS; 2445 dXSARGS;
1921 SV *data = (SV *)GENSUB_ARG; 2446 SV *data = (SV *)S_GENSUB_ARG;
1922 2447
1923 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2448 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1924 { 2449 {
1925 /* first call, set args */ 2450 /* first call, set args */
2451 SV *coro = SvRV (data);
1926 AV *av = newAV (); 2452 AV *av = newAV ();
1927 SV *coro = SvRV (data);
1928 2453
1929 SvRV_set (data, (SV *)av); 2454 SvRV_set (data, (SV *)av);
1930 api_ready (aTHX_ coro);
1931 SvREFCNT_dec (coro);
1932 2455
1933 /* better take a full copy of the arguments */ 2456 /* better take a full copy of the arguments */
1934 while (items--) 2457 while (items--)
1935 av_store (av, items, newSVsv (ST (items))); 2458 av_store (av, items, newSVsv (ST (items)));
2459
2460 api_ready (aTHX_ coro);
2461 SvREFCNT_dec (coro);
1936 } 2462 }
1937 2463
1938 XSRETURN_EMPTY; 2464 XSRETURN_EMPTY;
1939} 2465}
1940 2466
1941static int 2467static int
1942slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2468slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1943{ 2469{
1944 SV *data = (SV *)frame->data; 2470 SV *data = (SV *)frame->data;
1945 2471
1946 if (CORO_THROW) 2472 if (CORO_THROW)
1947 return 0; 2473 return 0;
1948 2474
1949 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2475 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1950 return 1; 2476 return 1;
… …
1957 2483
1958 EXTEND (SP, AvFILLp (av) + 1); 2484 EXTEND (SP, AvFILLp (av) + 1);
1959 for (i = 0; i <= AvFILLp (av); ++i) 2485 for (i = 0; i <= AvFILLp (av); ++i)
1960 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2486 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1961 2487
1962 /* we have stolen the elements, so ste length to zero and free */ 2488 /* we have stolen the elements, so set length to zero and free */
1963 AvFILLp (av) = -1; 2489 AvFILLp (av) = -1;
1964 av_undef (av); 2490 av_undef (av);
1965 2491
1966 PUTBACK; 2492 PUTBACK;
1967 } 2493 }
… …
1986 cb = sv_2mortal (coro->rouse_cb); 2512 cb = sv_2mortal (coro->rouse_cb);
1987 coro->rouse_cb = 0; 2513 coro->rouse_cb = 0;
1988 } 2514 }
1989 2515
1990 if (!SvROK (cb) 2516 if (!SvROK (cb)
1991 || SvTYPE (SvRV (cb)) != SVt_PVCV 2517 || SvTYPE (SvRV (cb)) != SVt_PVCV
1992 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2518 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1993 croak ("Coro::rouse_wait called with illegal callback argument,"); 2519 croak ("Coro::rouse_wait called with illegal callback argument,");
1994 2520
1995 { 2521 {
1996 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2522 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1997 SV *data = (SV *)GENSUB_ARG; 2523 SV *data = (SV *)S_GENSUB_ARG;
1998 2524
1999 frame->data = (void *)data; 2525 frame->data = (void *)data;
2000 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2526 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2001 frame->check = slf_check_rouse_wait; 2527 frame->check = slf_check_rouse_wait;
2002 } 2528 }
… …
2006coro_new_rouse_cb (pTHX) 2532coro_new_rouse_cb (pTHX)
2007{ 2533{
2008 HV *hv = (HV *)SvRV (coro_current); 2534 HV *hv = (HV *)SvRV (coro_current);
2009 struct coro *coro = SvSTATE_hv (hv); 2535 struct coro *coro = SvSTATE_hv (hv);
2010 SV *data = newRV_inc ((SV *)hv); 2536 SV *data = newRV_inc ((SV *)hv);
2011 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2537 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2012 2538
2013 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2539 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2014 SvREFCNT_dec (data); /* magicext increases the refcount */ 2540 SvREFCNT_dec (data); /* magicext increases the refcount */
2015 2541
2016 SvREFCNT_dec (coro->rouse_cb); 2542 SvREFCNT_dec (coro->rouse_cb);
… …
2113static void 2639static void
2114slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2640slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2115{ 2641{
2116 frame->prepare = prepare_cede_notself; 2642 frame->prepare = prepare_cede_notself;
2117 frame->check = slf_check_nop; 2643 frame->check = slf_check_nop;
2644}
2645
2646/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2647static void
2648slf_destroy (pTHX_ struct coro *coro)
2649{
2650 struct CoroSLF frame = coro->slf_frame;
2651
2652 /*
2653 * The on_destroy below most likely is from an SLF call.
2654 * Since by definition the SLF call will not finish when we destroy
2655 * the coro, we will have to force-finish it here, otherwise
2656 * cleanup functions cannot call SLF functions.
2657 */
2658 coro->slf_frame.prepare = 0;
2659
2660 /* this callback is reserved for slf functions needing to do cleanup */
2661 if (frame.destroy && frame.prepare && !PL_dirty)
2662 frame.destroy (aTHX_ &frame);
2118} 2663}
2119 2664
2120/* 2665/*
2121 * these not obviously related functions are all rolled into one 2666 * these not obviously related functions are all rolled into one
2122 * function to increase chances that they all will call transfer with the same 2667 * function to increase chances that they all will call transfer with the same
… …
2129 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2674 I32 checkmark; /* mark SP to see how many elements check has pushed */
2130 2675
2131 /* set up the slf frame, unless it has already been set-up */ 2676 /* set up the slf frame, unless it has already been set-up */
2132 /* the latter happens when a new coro has been started */ 2677 /* the latter happens when a new coro has been started */
2133 /* or when a new cctx was attached to an existing coroutine */ 2678 /* or when a new cctx was attached to an existing coroutine */
2134 if (expect_true (!slf_frame.prepare)) 2679 if (ecb_expect_true (!slf_frame.prepare))
2135 { 2680 {
2136 /* first iteration */ 2681 /* first iteration */
2137 dSP; 2682 dSP;
2138 SV **arg = PL_stack_base + TOPMARK + 1; 2683 SV **arg = PL_stack_base + TOPMARK + 1;
2139 int items = SP - arg; /* args without function object */ 2684 int items = SP - arg; /* args without function object */
… …
2180 while (slf_frame.check (aTHX_ &slf_frame)); 2725 while (slf_frame.check (aTHX_ &slf_frame));
2181 2726
2182 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2727 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2183 2728
2184 /* exception handling */ 2729 /* exception handling */
2185 if (expect_false (CORO_THROW)) 2730 if (ecb_expect_false (CORO_THROW))
2186 { 2731 {
2187 SV *exception = sv_2mortal (CORO_THROW); 2732 SV *exception = sv_2mortal (CORO_THROW);
2188 2733
2189 CORO_THROW = 0; 2734 CORO_THROW = 0;
2190 sv_setsv (ERRSV, exception); 2735 sv_setsv (ERRSV, exception);
2191 croak (0); 2736 croak (0);
2192 } 2737 }
2193 2738
2194 /* return value handling - mostly like entersub */ 2739 /* return value handling - mostly like entersub */
2195 /* make sure we put something on the stack in scalar context */ 2740 /* make sure we put something on the stack in scalar context */
2196 if (GIMME_V == G_SCALAR) 2741 if (GIMME_V == G_SCALAR
2742 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2197 { 2743 {
2198 dSP; 2744 dSP;
2199 SV **bot = PL_stack_base + checkmark; 2745 SV **bot = PL_stack_base + checkmark;
2200 2746
2201 if (sp == bot) /* too few, push undef */ 2747 if (sp == bot) /* too few, push undef */
2202 bot [1] = &PL_sv_undef; 2748 bot [1] = &PL_sv_undef;
2203 else if (sp != bot + 1) /* too many, take last one */ 2749 else /* too many, take last one */
2204 bot [1] = *sp; 2750 bot [1] = *sp;
2205 2751
2206 SP = bot + 1; 2752 SP = bot + 1;
2207 2753
2208 PUTBACK; 2754 PUTBACK;
… …
2241 if (PL_op->op_flags & OPf_STACKED) 2787 if (PL_op->op_flags & OPf_STACKED)
2242 { 2788 {
2243 if (items > slf_arga) 2789 if (items > slf_arga)
2244 { 2790 {
2245 slf_arga = items; 2791 slf_arga = items;
2246 free (slf_argv); 2792 Safefree (slf_argv);
2247 slf_argv = malloc (slf_arga * sizeof (SV *)); 2793 New (0, slf_argv, slf_arga, SV *);
2248 } 2794 }
2249 2795
2250 slf_argc = items; 2796 slf_argc = items;
2251 2797
2252 for (i = 0; i < items; ++i) 2798 for (i = 0; i < items; ++i)
… …
2257 2803
2258 PL_op->op_ppaddr = pp_slf; 2804 PL_op->op_ppaddr = pp_slf;
2259 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2805 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2260 2806
2261 PL_op = (OP *)&slf_restore; 2807 PL_op = (OP *)&slf_restore;
2808}
2809
2810/*****************************************************************************/
2811/* dynamic wind */
2812
2813static void
2814on_enterleave_call (pTHX_ SV *cb)
2815{
2816 dSP;
2817
2818 PUSHSTACK;
2819
2820 PUSHMARK (SP);
2821 PUTBACK;
2822 call_sv (cb, G_VOID | G_DISCARD);
2823 SPAGAIN;
2824
2825 POPSTACK;
2826}
2827
2828static SV *
2829coro_avp_pop_and_free (pTHX_ AV **avp)
2830{
2831 AV *av = *avp;
2832 SV *res = av_pop (av);
2833
2834 if (AvFILLp (av) < 0)
2835 {
2836 *avp = 0;
2837 SvREFCNT_dec (av);
2838 }
2839
2840 return res;
2841}
2842
2843static void
2844coro_pop_on_enter (pTHX_ void *coro)
2845{
2846 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2847 SvREFCNT_dec (cb);
2848}
2849
2850static void
2851coro_pop_on_leave (pTHX_ void *coro)
2852{
2853 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2854 on_enterleave_call (aTHX_ sv_2mortal (cb));
2855}
2856
2857static void
2858enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
2859{
2860 if (!hook)
2861 return;
2862
2863 if (!*avp)
2864 {
2865 *avp = newAV ();
2866 AvREAL_off (*avp);
2867 }
2868
2869 av_push (*avp, (SV *)hook);
2870 av_push (*avp, (SV *)arg);
2871}
2872
2873static void
2874enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
2875{
2876 AV *av = *avp;
2877 int i;
2878
2879 if (!av)
2880 return;
2881
2882 for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
2883 if (AvARRAY (av)[i] == (SV *)hook)
2884 {
2885 if (execute)
2886 hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
2887
2888 memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
2889 av_pop (av);
2890 av_pop (av);
2891 break;
2892 }
2893
2894 if (AvFILLp (av) >= 0)
2895 {
2896 *avp = 0;
2897 SvREFCNT_dec_NN (av);
2898 }
2899}
2900
2901static void
2902api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2903{
2904 struct coro *coro = SvSTATE (coro_sv);
2905
2906 if (SvSTATE_current == coro)
2907 if (enter)
2908 enter (aTHX_ enter_arg);
2909
2910 enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
2911 enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
2912}
2913
2914static void
2915api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
2916{
2917 struct coro *coro = SvSTATE (coro_sv);
2918
2919 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2920 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
2921}
2922
2923static void
2924savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
2925{
2926 struct coro *coro = SvSTATE_current;
2927
2928 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2929}
2930
2931static void
2932savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
2933{
2934 struct coro *coro = SvSTATE_current;
2935
2936 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
2937}
2938
2939static void
2940api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2941{
2942 api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
2943
2944 /* this ought to be much cheaper than malloc + a single destructor call */
2945 if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
2946 if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2262} 2947}
2263 2948
2264/*****************************************************************************/ 2949/*****************************************************************************/
2265/* PerlIO::cede */ 2950/* PerlIO::cede */
2266 2951
… …
2268{ 2953{
2269 PerlIOBuf base; 2954 PerlIOBuf base;
2270 NV next, every; 2955 NV next, every;
2271} PerlIOCede; 2956} PerlIOCede;
2272 2957
2273static IV 2958static IV ecb_cold
2274PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2959PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2275{ 2960{
2276 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2961 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2277 2962
2278 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2963 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2279 self->next = nvtime () + self->every; 2964 self->next = nvtime () + self->every;
2280 2965
2281 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2966 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2282} 2967}
2283 2968
2284static SV * 2969static SV * ecb_cold
2285PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2970PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2286{ 2971{
2287 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2972 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2288 2973
2289 return newSVnv (self->every); 2974 return newSVnv (self->every);
… …
2340/* Coro::Semaphore & Coro::Signal */ 3025/* Coro::Semaphore & Coro::Signal */
2341 3026
2342static SV * 3027static SV *
2343coro_waitarray_new (pTHX_ int count) 3028coro_waitarray_new (pTHX_ int count)
2344{ 3029{
2345 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3030 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2346 AV *av = newAV (); 3031 AV *av = newAV ();
2347 SV **ary; 3032 SV **ary;
2348 3033
2349 /* unfortunately, building manually saves memory */ 3034 /* unfortunately, building manually saves memory */
2350 Newx (ary, 2, SV *); 3035 Newx (ary, 2, SV *);
2351 AvALLOC (av) = ary; 3036 AvALLOC (av) = ary;
3037#if PERL_VERSION_ATLEAST (5,10,0)
2352 /*AvARRAY (av) = ary;*/ 3038 AvARRAY (av) = ary;
3039#else
2353 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 3040 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
3041 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
3042 SvPVX ((SV *)av) = (char *)ary;
3043#endif
2354 AvMAX (av) = 1; 3044 AvMAX (av) = 1;
2355 AvFILLp (av) = 0; 3045 AvFILLp (av) = 0;
2356 ary [0] = newSViv (count); 3046 ary [0] = newSViv (count);
2357 3047
2358 return newRV_noinc ((SV *)av); 3048 return newRV_noinc ((SV *)av);
… …
2391 XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); 3081 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2392 PUTBACK; 3082 PUTBACK;
2393 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); 3083 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2394 } 3084 }
2395 3085
2396 SvREFCNT_dec (cb); 3086 SvREFCNT_dec_NN (cb);
2397 } 3087 }
2398} 3088}
2399 3089
2400static void 3090static void
2401coro_semaphore_on_destroy (pTHX_ struct coro *coro) 3091coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2402{ 3092{
2403 /* call $sem->adjust (0) to possibly wake up some other waiters */ 3093 /* call $sem->adjust (0) to possibly wake up some other waiters */
2404 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 3094 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2405} 3095}
2406 3096
2407static int 3097static int
2408slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 3098slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2409{ 3099{
2410 AV *av = (AV *)frame->data; 3100 AV *av = (AV *)frame->data;
2411 SV *count_sv = AvARRAY (av)[0]; 3101 SV *count_sv = AvARRAY (av)[0];
3102 SV *coro_hv = SvRV (coro_current);
3103
3104 frame->destroy = 0;
2412 3105
2413 /* if we are about to throw, don't actually acquire the lock, just throw */ 3106 /* if we are about to throw, don't actually acquire the lock, just throw */
2414 if (CORO_THROW) 3107 if (ecb_expect_false (CORO_THROW))
3108 {
3109 /* we still might be responsible for the semaphore, so wake up others */
3110 coro_semaphore_adjust (aTHX_ av, 0);
3111
2415 return 0; 3112 return 0;
3113 }
2416 else if (SvIVX (count_sv) > 0) 3114 else if (SvIVX (count_sv) > 0)
2417 { 3115 {
2418 SvSTATE_current->on_destroy = 0;
2419
2420 if (acquire) 3116 if (acquire)
2421 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3117 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2422 else 3118 else
2423 coro_semaphore_adjust (aTHX_ av, 0); 3119 coro_semaphore_adjust (aTHX_ av, 0);
2424 3120
… …
2428 { 3124 {
2429 int i; 3125 int i;
2430 /* if we were woken up but can't down, we look through the whole */ 3126 /* if we were woken up but can't down, we look through the whole */
2431 /* waiters list and only add us if we aren't in there already */ 3127 /* waiters list and only add us if we aren't in there already */
2432 /* this avoids some degenerate memory usage cases */ 3128 /* this avoids some degenerate memory usage cases */
2433 3129 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2434 for (i = 1; i <= AvFILLp (av); ++i)
2435 if (AvARRAY (av)[i] == SvRV (coro_current)) 3130 if (AvARRAY (av)[i] == coro_hv)
2436 return 1; 3131 return 1;
2437 3132
2438 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3133 av_push (av, SvREFCNT_inc (coro_hv));
2439 return 1; 3134 return 1;
2440 } 3135 }
2441} 3136}
2442 3137
2443static int 3138static int
… …
2466 { 3161 {
2467 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3162 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2468 3163
2469 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3164 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2470 frame->prepare = prepare_schedule; 3165 frame->prepare = prepare_schedule;
2471
2472 /* to avoid race conditions when a woken-up coro gets terminated */ 3166 /* to avoid race conditions when a woken-up coro gets terminated */
2473 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3167 /* we arrange for a temporary on_destroy that calls adjust (0) */
2474 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3168 frame->destroy = coro_semaphore_destroy;
2475 } 3169 }
2476} 3170}
2477 3171
2478static void 3172static void
2479slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3173slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2487{ 3181{
2488 if (items >= 2) 3182 if (items >= 2)
2489 { 3183 {
2490 /* callback form */ 3184 /* callback form */
2491 AV *av = (AV *)SvRV (arg [0]); 3185 AV *av = (AV *)SvRV (arg [0]);
2492 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3186 SV *cb_cv = s_get_cv_croak (arg [1]);
2493 3187
2494 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3188 av_push (av, SvREFCNT_inc_NN (cb_cv));
2495 3189
2496 if (SvIVX (AvARRAY (av)[0]) > 0) 3190 if (SvIVX (AvARRAY (av)[0]) > 0)
2497 coro_semaphore_adjust (aTHX_ av, 0); 3191 coro_semaphore_adjust (aTHX_ av, 0);
2498 3192
2499 frame->prepare = prepare_nop; 3193 frame->prepare = prepare_nop;
… …
2523 AvARRAY (av)[0] = AvARRAY (av)[1]; 3217 AvARRAY (av)[0] = AvARRAY (av)[1];
2524 AvARRAY (av)[1] = cb; 3218 AvARRAY (av)[1] = cb;
2525 3219
2526 cb = av_shift (av); 3220 cb = av_shift (av);
2527 3221
3222 if (SvTYPE (cb) == SVt_PVCV)
3223 {
3224 dSP;
3225 PUSHMARK (SP);
3226 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3227 PUTBACK;
3228 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3229 }
3230 else
3231 {
2528 api_ready (aTHX_ cb); 3232 api_ready (aTHX_ cb);
2529 sv_setiv (cb, 0); /* signal waiter */ 3233 sv_setiv (cb, 0); /* signal waiter */
3234 }
3235
2530 SvREFCNT_dec (cb); 3236 SvREFCNT_dec_NN (cb);
2531 3237
2532 --count; 3238 --count;
2533 } 3239 }
2534} 3240}
2535 3241
… …
2543static void 3249static void
2544slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3250slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2545{ 3251{
2546 AV *av = (AV *)SvRV (arg [0]); 3252 AV *av = (AV *)SvRV (arg [0]);
2547 3253
3254 if (items >= 2)
3255 {
3256 SV *cb_cv = s_get_cv_croak (arg [1]);
3257 av_push (av, SvREFCNT_inc_NN (cb_cv));
3258
2548 if (SvIVX (AvARRAY (av)[0])) 3259 if (SvIVX (AvARRAY (av)[0]))
3260 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3261
3262 frame->prepare = prepare_nop;
3263 frame->check = slf_check_nop;
3264 }
3265 else if (SvIVX (AvARRAY (av)[0]))
2549 { 3266 {
2550 SvIVX (AvARRAY (av)[0]) = 0; 3267 SvIVX (AvARRAY (av)[0]) = 0;
2551 frame->prepare = prepare_nop; 3268 frame->prepare = prepare_nop;
2552 frame->check = slf_check_nop; 3269 frame->check = slf_check_nop;
2553 } 3270 }
2554 else 3271 else
2555 { 3272 {
2556 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3273 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2557 3274
2558 av_push (av, waiter); 3275 av_push (av, waiter);
2559 3276
2560 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3277 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2561 frame->prepare = prepare_schedule; 3278 frame->prepare = prepare_schedule;
… …
2579 3296
2580static void 3297static void
2581coro_aio_callback (pTHX_ CV *cv) 3298coro_aio_callback (pTHX_ CV *cv)
2582{ 3299{
2583 dXSARGS; 3300 dXSARGS;
2584 AV *state = (AV *)GENSUB_ARG; 3301 AV *state = (AV *)S_GENSUB_ARG;
2585 SV *coro = av_pop (state); 3302 SV *coro = av_pop (state);
2586 SV *data_sv = newSV (sizeof (struct io_state)); 3303 SV *data_sv = newSV (sizeof (struct io_state));
2587 3304
2588 av_extend (state, items - 1); 3305 av_extend (state, items - 1);
2589 3306
… …
2609 } 3326 }
2610 3327
2611 av_push (state, data_sv); 3328 av_push (state, data_sv);
2612 3329
2613 api_ready (aTHX_ coro); 3330 api_ready (aTHX_ coro);
2614 SvREFCNT_dec (coro); 3331 SvREFCNT_dec_NN (coro);
2615 SvREFCNT_dec ((AV *)state); 3332 SvREFCNT_dec_NN ((AV *)state);
2616} 3333}
2617 3334
2618static int 3335static int
2619slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3336slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2620{ 3337{
… …
2625 /* it quickly returns */ 3342 /* it quickly returns */
2626 if (CORO_THROW) 3343 if (CORO_THROW)
2627 return 0; 3344 return 0;
2628 3345
2629 /* one element that is an RV? repeat! */ 3346 /* one element that is an RV? repeat! */
2630 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3347 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2631 return 1; 3348 return 1;
2632 3349
2633 /* restore status */ 3350 /* restore status */
2634 { 3351 {
2635 SV *data_sv = av_pop (state); 3352 SV *data_sv = av_pop (state);
… …
2638 errno = data->errorno; 3355 errno = data->errorno;
2639 PL_laststype = data->laststype; 3356 PL_laststype = data->laststype;
2640 PL_laststatval = data->laststatval; 3357 PL_laststatval = data->laststatval;
2641 PL_statcache = data->statcache; 3358 PL_statcache = data->statcache;
2642 3359
2643 SvREFCNT_dec (data_sv); 3360 SvREFCNT_dec_NN (data_sv);
2644 } 3361 }
2645 3362
2646 /* push result values */ 3363 /* push result values */
2647 { 3364 {
2648 dSP; 3365 dSP;
… …
2674 dSP; 3391 dSP;
2675 3392
2676 static SV *prio_cv; 3393 static SV *prio_cv;
2677 static SV *prio_sv; 3394 static SV *prio_sv;
2678 3395
2679 if (expect_false (!prio_cv)) 3396 if (ecb_expect_false (!prio_cv))
2680 { 3397 {
2681 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3398 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2682 prio_sv = newSViv (0); 3399 prio_sv = newSViv (0);
2683 } 3400 }
2684 3401
… …
2703 3420
2704 for (i = 0; i < items; ++i) 3421 for (i = 0; i < items; ++i)
2705 PUSHs (arg [i]); 3422 PUSHs (arg [i]);
2706 3423
2707 /* now push the callback closure */ 3424 /* now push the callback closure */
2708 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3425 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2709 3426
2710 /* now call the AIO function - we assume our request is uncancelable */ 3427 /* now call the AIO function - we assume our request is uncancelable */
2711 PUTBACK; 3428 PUTBACK;
2712 call_sv ((SV *)req, G_VOID | G_DISCARD); 3429 call_sv ((SV *)req, G_VOID | G_DISCARD);
2713 } 3430 }
2714 3431
2715 /* now that the requets is going, we loop toll we have a result */ 3432 /* now that the request is going, we loop till we have a result */
2716 frame->data = (void *)state; 3433 frame->data = (void *)state;
2717 frame->prepare = prepare_schedule; 3434 frame->prepare = prepare_schedule;
2718 frame->check = slf_check_aio_req; 3435 frame->check = slf_check_aio_req;
2719} 3436}
2720 3437
… …
2732 3449
2733#if CORO_CLONE 3450#if CORO_CLONE
2734# include "clone.c" 3451# include "clone.c"
2735#endif 3452#endif
2736 3453
3454/*****************************************************************************/
3455
3456static SV *
3457coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3458{
3459 SV *coro_sv;
3460 struct coro *coro;
3461 MAGIC *mg;
3462 HV *hv;
3463 SV *cb;
3464 int i;
3465
3466 if (argc > 0)
3467 {
3468 cb = s_get_cv_croak (argv [0]);
3469
3470 if (!is_coro)
3471 {
3472 if (CvISXSUB (cb))
3473 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3474
3475 if (!CvROOT (cb))
3476 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3477 }
3478 }
3479
3480 Newz (0, coro, 1, struct coro);
3481 coro->args = newAV ();
3482 coro->flags = CF_NEW;
3483
3484 if (coro_first) coro_first->prev = coro;
3485 coro->next = coro_first;
3486 coro_first = coro;
3487
3488 coro->hv = hv = newHV ();
3489 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3490 mg->mg_flags |= MGf_DUP;
3491 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3492
3493 if (argc > 0)
3494 {
3495 av_extend (coro->args, argc + is_coro - 1);
3496
3497 if (is_coro)
3498 {
3499 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3500 cb = (SV *)cv_coro_run;
3501 }
3502
3503 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3504
3505 for (i = 1; i < argc; i++)
3506 av_push (coro->args, newSVsv (argv [i]));
3507 }
3508
3509 return coro_sv;
3510}
3511
3512#ifndef __cplusplus
3513ecb_cold XS(boot_Coro__State);
3514#endif
3515
3516#if CORO_JIT
3517
3518static void ecb_noinline ecb_cold
3519pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3520{
3521 dSP;
3522 AV *av = newAV ();
3523
3524 av_store (av, 3, newSVuv (d));
3525 av_store (av, 2, newSVuv (c));
3526 av_store (av, 1, newSVuv (b));
3527 av_store (av, 0, newSVuv (a));
3528
3529 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3530
3531 PUTBACK;
3532}
3533
3534static void ecb_noinline ecb_cold
3535jit_init (pTHX)
3536{
3537 dSP;
3538 SV *load, *save;
3539 char *map_base;
3540 char *load_ptr, *save_ptr;
3541 STRLEN load_len, save_len, map_len;
3542 int count;
3543
3544 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3545
3546 PUSHMARK (SP);
3547 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3548 #include "state.h"
3549 count = call_pv ("Coro::State::_jit", G_ARRAY);
3550 SPAGAIN;
3551
3552 save = POPs; save_ptr = SvPVbyte (save, save_len);
3553 load = POPs; load_ptr = SvPVbyte (load, load_len);
3554
3555 map_len = load_len + save_len + 16;
3556
3557 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3558
3559 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3560
3561 load_perl_slots = (load_save_perl_slots_type)map_base;
3562 memcpy (map_base, load_ptr, load_len);
3563
3564 map_base += (load_len + 15) & ~15;
3565
3566 save_perl_slots = (load_save_perl_slots_type)map_base;
3567 memcpy (map_base, save_ptr, save_len);
3568
3569 /* we are good citizens and try to make the page read-only, so the evil evil */
3570 /* hackers might have it a bit more difficult */
3571 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3572
3573 PUTBACK;
3574 eval_pv ("undef &Coro::State::_jit", 1);
3575}
3576
3577#endif
3578
2737MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3579MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2738 3580
2739PROTOTYPES: DISABLE 3581PROTOTYPES: DISABLE
2740 3582
2741BOOT: 3583BOOT:
2742{ 3584{
3585#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3586#include "state.h"
2743#ifdef USE_ITHREADS 3587#ifdef USE_ITHREADS
2744# if CORO_PTHREAD 3588# if CORO_PTHREAD
2745 coro_thx = PERL_GET_CONTEXT; 3589 coro_thx = PERL_GET_CONTEXT;
2746# endif 3590# endif
2747#endif 3591#endif
2748 BOOT_PAGESIZE; 3592 /* perl defines these to check for existance first, but why it doesn't */
3593 /* just create them one at init time is not clear to me, except for */
3594 /* programs trying to delete them, but... */
3595 /* anyway, we declare this as invalid and make sure they are initialised here */
3596 DEFSV;
3597 ERRSV;
2749 3598
2750 cctx_current = cctx_new_empty (); 3599 cctx_current = cctx_new_empty ();
2751 3600
2752 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3601 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2753 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3602 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2754 3603
2755 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3604 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2756 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3605 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
2757 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; 3606 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
2758 3607
2759 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
2760 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); 3608 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
2761 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); 3609 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
2762 3610
2763 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 3611 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
2764 3612
… …
2793 coroapi.prepare_nop = prepare_nop; 3641 coroapi.prepare_nop = prepare_nop;
2794 coroapi.prepare_schedule = prepare_schedule; 3642 coroapi.prepare_schedule = prepare_schedule;
2795 coroapi.prepare_cede = prepare_cede; 3643 coroapi.prepare_cede = prepare_cede;
2796 coroapi.prepare_cede_notself = prepare_cede_notself; 3644 coroapi.prepare_cede_notself = prepare_cede_notself;
2797 3645
2798 { 3646 time_init (aTHX);
2799 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2800 3647
2801 if (!svp) croak ("Time::HiRes is required");
2802 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2803
2804 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2805 }
2806
2807 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3648 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3649#if CORO_JIT
3650 PUTBACK;
3651 jit_init (aTHX);
3652 SPAGAIN;
3653#endif
2808} 3654}
2809 3655
2810SV * 3656SV *
2811new (char *klass, ...) 3657new (SV *klass, ...)
2812 ALIAS: 3658 ALIAS:
2813 Coro::new = 1 3659 Coro::new = 1
2814 CODE: 3660 CODE:
2815{ 3661 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2816 struct coro *coro; 3662 OUTPUT:
2817 MAGIC *mg;
2818 HV *hv;
2819 CV *cb;
2820 int i;
2821
2822 if (items > 1)
2823 {
2824 cb = coro_sv_2cv (aTHX_ ST (1));
2825
2826 if (!ix)
2827 {
2828 if (CvISXSUB (cb))
2829 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2830
2831 if (!CvROOT (cb))
2832 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2833 }
2834 }
2835
2836 Newz (0, coro, 1, struct coro);
2837 coro->args = newAV ();
2838 coro->flags = CF_NEW;
2839
2840 if (coro_first) coro_first->prev = coro;
2841 coro->next = coro_first;
2842 coro_first = coro;
2843
2844 coro->hv = hv = newHV ();
2845 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2846 mg->mg_flags |= MGf_DUP;
2847 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2848
2849 if (items > 1)
2850 {
2851 av_extend (coro->args, items - 1 + ix - 1);
2852
2853 if (ix)
2854 {
2855 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2856 cb = cv_coro_run;
2857 }
2858
2859 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2860
2861 for (i = 2; i < items; i++)
2862 av_push (coro->args, newSVsv (ST (i)));
2863 }
2864}
2865 OUTPUT:
2866 RETVAL 3663 RETVAL
2867 3664
2868void 3665void
2869transfer (...) 3666transfer (...)
2870 PROTOTYPE: $$ 3667 PROTOTYPE: $$
2871 CODE: 3668 CODE:
2872 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3669 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2873 3670
2874bool
2875_destroy (SV *coro_sv)
2876 CODE:
2877 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2878 OUTPUT:
2879 RETVAL
2880
2881void
2882_exit (int code)
2883 PROTOTYPE: $
2884 CODE:
2885 _exit (code);
2886
2887SV * 3671SV *
2888clone (Coro::State coro) 3672clone (Coro::State coro)
2889 CODE: 3673 CODE:
2890{ 3674{
2891#if CORO_CLONE 3675#if CORO_CLONE
2892 struct coro *ncoro = coro_clone (coro); 3676 struct coro *ncoro = coro_clone (aTHX_ coro);
2893 MAGIC *mg; 3677 MAGIC *mg;
2894 /* TODO: too much duplication */ 3678 /* TODO: too much duplication */
2895 ncoro->hv = newHV (); 3679 ncoro->hv = newHV ();
2896 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); 3680 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897 mg->mg_flags |= MGf_DUP; 3681 mg->mg_flags |= MGf_DUP;
… …
2945void 3729void
2946list () 3730list ()
2947 PROTOTYPE: 3731 PROTOTYPE:
2948 PPCODE: 3732 PPCODE:
2949{ 3733{
2950 struct coro *coro; 3734 struct coro *coro;
2951 for (coro = coro_first; coro; coro = coro->next) 3735 for (coro = coro_first; coro; coro = coro->next)
2952 if (coro->hv) 3736 if (coro->hv)
2953 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3737 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2954} 3738}
2955 3739
… …
2959 eval = 1 3743 eval = 1
2960 CODE: 3744 CODE:
2961{ 3745{
2962 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3746 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2963 { 3747 {
2964 struct coro temp; 3748 struct coro *current = SvSTATE_current;
3749 struct CoroSLF slf_save;
2965 3750
2966 if (!(coro->flags & CF_RUNNING)) 3751 if (current != coro)
2967 { 3752 {
2968 PUTBACK; 3753 PUTBACK;
2969 save_perl (aTHX_ &temp); 3754 save_perl (aTHX_ current);
2970 load_perl (aTHX_ coro); 3755 load_perl (aTHX_ coro);
3756 /* the coro is most likely in an active SLF call.
3757 * while not strictly required (the code we execute is
3758 * not allowed to call any SLF functions), it's cleaner
3759 * to reinitialise the slf_frame and restore it later.
3760 * This might one day allow us to actually do SLF calls
3761 * from code executed here.
3762 */
3763 slf_save = slf_frame;
3764 slf_frame.prepare = 0;
3765 SPAGAIN;
2971 } 3766 }
2972 3767
2973 {
2974 dSP;
2975 ENTER;
2976 SAVETMPS;
2977 PUTBACK;
2978 PUSHSTACK; 3768 PUSHSTACK;
3769
2979 PUSHMARK (SP); 3770 PUSHMARK (SP);
3771 PUTBACK;
2980 3772
2981 if (ix) 3773 if (ix)
2982 eval_sv (coderef, 0); 3774 eval_sv (coderef, 0);
2983 else 3775 else
2984 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3776 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2985 3777
2986 POPSTACK; 3778 POPSTACK;
2987 SPAGAIN; 3779 SPAGAIN;
2988 FREETMPS;
2989 LEAVE;
2990 PUTBACK;
2991 }
2992 3780
2993 if (!(coro->flags & CF_RUNNING)) 3781 if (current != coro)
2994 { 3782 {
3783 PUTBACK;
3784 slf_frame = slf_save;
2995 save_perl (aTHX_ coro); 3785 save_perl (aTHX_ coro);
2996 load_perl (aTHX_ &temp); 3786 load_perl (aTHX_ current);
2997 SPAGAIN; 3787 SPAGAIN;
2998 } 3788 }
2999 } 3789 }
3000} 3790}
3001 3791
… …
3004 PROTOTYPE: $ 3794 PROTOTYPE: $
3005 ALIAS: 3795 ALIAS:
3006 is_ready = CF_READY 3796 is_ready = CF_READY
3007 is_running = CF_RUNNING 3797 is_running = CF_RUNNING
3008 is_new = CF_NEW 3798 is_new = CF_NEW
3009 is_destroyed = CF_DESTROYED 3799 is_destroyed = CF_ZOMBIE
3800 is_zombie = CF_ZOMBIE
3801 is_suspended = CF_SUSPENDED
3010 CODE: 3802 CODE:
3011 RETVAL = boolSV (coro->flags & ix); 3803 RETVAL = boolSV (coro->flags & ix);
3012 OUTPUT: 3804 OUTPUT:
3013 RETVAL 3805 RETVAL
3014 3806
3015void 3807void
3016throw (Coro::State self, SV *throw = &PL_sv_undef) 3808throw (SV *self, SV *exception = &PL_sv_undef)
3017 PROTOTYPE: $;$ 3809 PROTOTYPE: $;$
3018 CODE: 3810 CODE:
3019{ 3811{
3812 struct coro *coro = SvSTATE (self);
3020 struct coro *current = SvSTATE_current; 3813 struct coro *current = SvSTATE_current;
3021 SV **throwp = self == current ? &CORO_THROW : &self->except; 3814 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3022 SvREFCNT_dec (*throwp); 3815 SvREFCNT_dec (*exceptionp);
3023 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3816 SvGETMAGIC (exception);
3817 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3818
3819 api_ready (aTHX_ self);
3024} 3820}
3025 3821
3026void 3822void
3027api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3823api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3028 PROTOTYPE: $;$ 3824 PROTOTYPE: $;$
… …
3079 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3875 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3080 3876
3081 SV *tmp = *src; *src = *dst; *dst = tmp; 3877 SV *tmp = *src; *src = *dst; *dst = tmp;
3082 } 3878 }
3083 3879
3880void
3881cancel (Coro::State self)
3882 CODE:
3883 coro_state_destroy (aTHX_ self);
3884
3885SV *
3886enable_times (int enabled = enable_times)
3887 CODE:
3888{
3889 RETVAL = boolSV (enable_times);
3890
3891 if (enabled != enable_times)
3892 {
3893 enable_times = enabled;
3894
3895 coro_times_update ();
3896 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3897 }
3898}
3899 OUTPUT:
3900 RETVAL
3901
3902void
3903times (Coro::State self)
3904 PPCODE:
3905{
3906 struct coro *current = SvSTATE (coro_current);
3907
3908 if (ecb_expect_false (current == self))
3909 {
3910 coro_times_update ();
3911 coro_times_add (SvSTATE (coro_current));
3912 }
3913
3914 EXTEND (SP, 2);
3915 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3916 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3917
3918 if (ecb_expect_false (current == self))
3919 coro_times_sub (SvSTATE (coro_current));
3920}
3921
3922void
3923swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3924 CODE:
3925{
3926 struct coro *current = SvSTATE_current;
3927
3928 if (current == coro)
3929 SWAP_SVS (current);
3930
3931 if (!coro->swap_sv)
3932 coro->swap_sv = newAV ();
3933
3934 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3935 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3936
3937 if (current == coro)
3938 SWAP_SVS (current);
3939}
3940
3084 3941
3085MODULE = Coro::State PACKAGE = Coro 3942MODULE = Coro::State PACKAGE = Coro
3086 3943
3087BOOT: 3944BOOT:
3088{ 3945{
3089 int i; 3946 if (SVt_LAST > 32)
3947 croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
3090 3948
3091 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3949 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3092 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3950 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3093 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3951 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3094 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3095 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3952 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3096 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3953 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3097 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3954 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3098 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3955 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3956 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3099 3957
3100 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3958 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3101 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3959 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3102 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3960 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3103 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3961 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3104 3962
3105 coro_stash = gv_stashpv ("Coro", TRUE); 3963 coro_stash = gv_stashpv ("Coro", TRUE);
3106 3964
3107 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3965 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3108 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3966 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3109 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3967 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3110 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3968 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3111 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3969 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3112 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3970 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3113
3114 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3115 coro_ready[i] = newAV ();
3116 3971
3117 { 3972 {
3118 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3973 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3119 3974
3120 coroapi.schedule = api_schedule; 3975 coroapi.schedule = api_schedule;
… …
3124 coroapi.ready = api_ready; 3979 coroapi.ready = api_ready;
3125 coroapi.is_ready = api_is_ready; 3980 coroapi.is_ready = api_is_ready;
3126 coroapi.nready = coro_nready; 3981 coroapi.nready = coro_nready;
3127 coroapi.current = coro_current; 3982 coroapi.current = coro_current;
3128 3983
3984 coroapi.enterleave_hook = api_enterleave_hook;
3985 coroapi.enterleave_unhook = api_enterleave_unhook;
3986 coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
3987
3129 /*GCoroAPI = &coroapi;*/ 3988 /*GCoroAPI = &coroapi;*/
3130 sv_setiv (sv, (IV)&coroapi); 3989 sv_setiv (sv, (IV)&coroapi);
3131 SvREADONLY_on (sv); 3990 SvREADONLY_on (sv);
3132 } 3991 }
3133} 3992}
3134 3993
3994SV *
3995async (...)
3996 PROTOTYPE: &@
3997 CODE:
3998 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3999 api_ready (aTHX_ RETVAL);
4000 OUTPUT:
4001 RETVAL
4002
4003void
4004_destroy (Coro::State coro)
4005 CODE:
4006 /* used by the manager thread */
4007 coro_state_destroy (aTHX_ coro);
4008
4009void
4010on_destroy (Coro::State coro, SV *cb)
4011 CODE:
4012 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
4013
4014void
4015join (...)
4016 CODE:
4017 CORO_EXECUTE_SLF_XS (slf_init_join);
4018
3135void 4019void
3136terminate (...) 4020terminate (...)
3137 CODE: 4021 CODE:
3138 CORO_EXECUTE_SLF_XS (slf_init_terminate); 4022 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3139 4023
3140void 4024void
4025cancel (...)
4026 CODE:
4027 CORO_EXECUTE_SLF_XS (slf_init_cancel);
4028
4029int
4030safe_cancel (Coro::State self, ...)
4031 C_ARGS: aTHX_ self, &ST (1), items - 1
4032
4033void
3141schedule (...) 4034schedule (...)
3142 CODE: 4035 CODE:
3143 CORO_EXECUTE_SLF_XS (slf_init_schedule); 4036 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3144 4037
3145void 4038void
… …
3161cede_notself (...) 4054cede_notself (...)
3162 CODE: 4055 CODE:
3163 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 4056 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3164 4057
3165void 4058void
3166_cancel (Coro::State self)
3167 CODE:
3168 coro_state_destroy (aTHX_ self);
3169 coro_call_on_destroy (aTHX_ self);
3170
3171void
3172_set_current (SV *current) 4059_set_current (SV *current)
3173 PROTOTYPE: $ 4060 PROTOTYPE: $
3174 CODE: 4061 CODE:
3175 SvREFCNT_dec (SvRV (coro_current)); 4062 SvREFCNT_dec_NN (SvRV (coro_current));
3176 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 4063 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3177 4064
3178void 4065void
3179_set_readyhook (SV *hook) 4066_set_readyhook (SV *hook)
3180 PROTOTYPE: $ 4067 PROTOTYPE: $
3181 CODE: 4068 CODE:
3182 SvREFCNT_dec (coro_readyhook); 4069 SvREFCNT_dec (coro_readyhook);
4070 SvGETMAGIC (hook);
4071 if (SvOK (hook))
4072 {
3183 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 4073 coro_readyhook = newSVsv (hook);
4074 CORO_READYHOOK = invoke_sv_ready_hook_helper;
4075 }
4076 else
4077 {
4078 coro_readyhook = 0;
4079 CORO_READYHOOK = 0;
4080 }
3184 4081
3185int 4082int
3186prio (Coro::State coro, int newprio = 0) 4083prio (Coro::State coro, int newprio = 0)
3187 PROTOTYPE: $;$ 4084 PROTOTYPE: $;$
3188 ALIAS: 4085 ALIAS:
… …
3194 if (items > 1) 4091 if (items > 1)
3195 { 4092 {
3196 if (ix) 4093 if (ix)
3197 newprio = coro->prio - newprio; 4094 newprio = coro->prio - newprio;
3198 4095
3199 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 4096 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3200 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 4097 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3201 4098
3202 coro->prio = newprio; 4099 coro->prio = newprio;
3203 } 4100 }
3204} 4101}
3205 OUTPUT: 4102 OUTPUT:
… …
3220 RETVAL = coro_nready; 4117 RETVAL = coro_nready;
3221 OUTPUT: 4118 OUTPUT:
3222 RETVAL 4119 RETVAL
3223 4120
3224void 4121void
4122suspend (Coro::State self)
4123 PROTOTYPE: $
4124 CODE:
4125 self->flags |= CF_SUSPENDED;
4126
4127void
4128resume (Coro::State self)
4129 PROTOTYPE: $
4130 CODE:
4131 self->flags &= ~CF_SUSPENDED;
4132
4133void
3225_pool_handler (...) 4134_pool_handler (...)
3226 CODE: 4135 CODE:
3227 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 4136 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3228 4137
3229void 4138void
… …
3240 for (i = 1; i < items; ++i) 4149 for (i = 1; i < items; ++i)
3241 av_push (av, SvREFCNT_inc_NN (ST (i))); 4150 av_push (av, SvREFCNT_inc_NN (ST (i)));
3242 4151
3243 if ((SV *)hv == &PL_sv_undef) 4152 if ((SV *)hv == &PL_sv_undef)
3244 { 4153 {
3245 PUSHMARK (SP); 4154 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3246 EXTEND (SP, 2);
3247 PUSHs (sv_Coro);
3248 PUSHs ((SV *)cv_pool_handler);
3249 PUTBACK;
3250 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3251 SPAGAIN;
3252
3253 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4155 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4156 SvREFCNT_dec_NN (sv);
3254 } 4157 }
3255 4158
3256 { 4159 {
3257 struct coro *coro = SvSTATE_hv (hv); 4160 struct coro *coro = SvSTATE_hv (hv);
3258 4161
… …
3265 api_ready (aTHX_ (SV *)hv); 4168 api_ready (aTHX_ (SV *)hv);
3266 4169
3267 if (GIMME_V != G_VOID) 4170 if (GIMME_V != G_VOID)
3268 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); 4171 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3269 else 4172 else
3270 SvREFCNT_dec (hv); 4173 SvREFCNT_dec_NN (hv);
3271} 4174}
3272 4175
3273SV * 4176SV *
3274rouse_cb () 4177rouse_cb ()
3275 PROTOTYPE: 4178 PROTOTYPE:
… …
3282rouse_wait (...) 4185rouse_wait (...)
3283 PROTOTYPE: ;$ 4186 PROTOTYPE: ;$
3284 PPCODE: 4187 PPCODE:
3285 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4188 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3286 4189
4190void
4191on_enter (SV *block)
4192 ALIAS:
4193 on_leave = 1
4194 PROTOTYPE: &
4195 CODE:
4196{
4197 struct coro *coro = SvSTATE_current;
4198 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4199
4200 block = s_get_cv_croak (block);
4201
4202 if (!*avp)
4203 *avp = newAV ();
4204
4205 av_push (*avp, SvREFCNT_inc (block));
4206
4207 if (!ix)
4208 on_enterleave_call (aTHX_ block);
4209
4210 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4211 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4212 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4213}
4214
3287 4215
3288MODULE = Coro::State PACKAGE = PerlIO::cede 4216MODULE = Coro::State PACKAGE = PerlIO::cede
3289 4217
3290BOOT: 4218BOOT:
3291 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4219 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3294MODULE = Coro::State PACKAGE = Coro::Semaphore 4222MODULE = Coro::State PACKAGE = Coro::Semaphore
3295 4223
3296SV * 4224SV *
3297new (SV *klass, SV *count = 0) 4225new (SV *klass, SV *count = 0)
3298 CODE: 4226 CODE:
4227{
4228 int semcnt = 1;
4229
4230 if (count)
4231 {
4232 SvGETMAGIC (count);
4233
4234 if (SvOK (count))
4235 semcnt = SvIV (count);
4236 }
4237
3299 RETVAL = sv_bless ( 4238 RETVAL = sv_bless (
3300 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4239 coro_waitarray_new (aTHX_ semcnt),
3301 GvSTASH (CvGV (cv)) 4240 GvSTASH (CvGV (cv))
3302 ); 4241 );
4242}
3303 OUTPUT: 4243 OUTPUT:
3304 RETVAL 4244 RETVAL
3305 4245
3306# helper for Coro::Channel 4246# helper for Coro::Channel and others
3307SV * 4247SV *
3308_alloc (int count) 4248_alloc (int count)
3309 CODE: 4249 CODE:
3310 RETVAL = coro_waitarray_new (aTHX_ count); 4250 RETVAL = coro_waitarray_new (aTHX_ count);
3311 OUTPUT: 4251 OUTPUT:
… …
3353 XSRETURN_NO; 4293 XSRETURN_NO;
3354} 4294}
3355 4295
3356void 4296void
3357waiters (SV *self) 4297waiters (SV *self)
3358 PPCODE: 4298 PPCODE:
3359{ 4299{
3360 AV *av = (AV *)SvRV (self); 4300 AV *av = (AV *)SvRV (self);
3361 int wcount = AvFILLp (av) + 1 - 1; 4301 int wcount = AvFILLp (av) + 1 - 1;
3362 4302
3363 if (GIMME_V == G_SCALAR) 4303 if (GIMME_V == G_SCALAR)
… …
3369 for (i = 1; i <= wcount; ++i) 4309 for (i = 1; i <= wcount; ++i)
3370 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4310 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3371 } 4311 }
3372} 4312}
3373 4313
4314MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4315
4316void
4317_may_delete (SV *sem, int count, unsigned int extra_refs)
4318 PPCODE:
4319{
4320 AV *av = (AV *)SvRV (sem);
4321
4322 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4323 && AvFILLp (av) == 0 /* no waiters, just count */
4324 && SvIV (AvARRAY (av)[0]) == count)
4325 XSRETURN_YES;
4326
4327 XSRETURN_NO;
4328}
4329
3374MODULE = Coro::State PACKAGE = Coro::Signal 4330MODULE = Coro::State PACKAGE = Coro::Signal
3375 4331
3376SV * 4332SV *
3377new (SV *klass) 4333new (SV *klass)
3378 CODE: 4334 CODE:
… …
3390 4346
3391void 4347void
3392broadcast (SV *self) 4348broadcast (SV *self)
3393 CODE: 4349 CODE:
3394{ 4350{
3395 AV *av = (AV *)SvRV (self); 4351 AV *av = (AV *)SvRV (self);
3396 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4352 coro_signal_wake (aTHX_ av, AvFILLp (av));
3397} 4353}
3398 4354
3399void 4355void
3400send (SV *self) 4356send (SV *self)
… …
3408 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4364 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3409} 4365}
3410 4366
3411IV 4367IV
3412awaited (SV *self) 4368awaited (SV *self)
3413 CODE: 4369 CODE:
3414 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4370 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3415 OUTPUT: 4371 OUTPUT:
3416 RETVAL 4372 RETVAL
3417 4373
3418 4374
… …
3423 4379
3424void 4380void
3425_schedule (...) 4381_schedule (...)
3426 CODE: 4382 CODE:
3427{ 4383{
3428 static int incede; 4384 static int incede;
3429 4385
3430 api_cede_notself (aTHX); 4386 api_cede_notself (aTHX);
3431 4387
3432 ++incede; 4388 ++incede;
3433 while (coro_nready >= incede && api_cede (aTHX)) 4389 while (coro_nready >= incede && api_cede (aTHX))
… …
3449 4405
3450void 4406void
3451_register (char *target, char *proto, SV *req) 4407_register (char *target, char *proto, SV *req)
3452 CODE: 4408 CODE:
3453{ 4409{
3454 CV *req_cv = coro_sv_2cv (aTHX_ req); 4410 SV *req_cv = s_get_cv_croak (req);
3455 /* newXSproto doesn't return the CV on 5.8 */ 4411 /* newXSproto doesn't return the CV on 5.8 */
3456 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4412 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3457 sv_setpv ((SV *)slf_cv, proto); 4413 sv_setpv ((SV *)slf_cv, proto);
3458 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4414 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3459} 4415}
3460 4416
4417MODULE = Coro::State PACKAGE = Coro::Select
4418
4419void
4420patch_pp_sselect ()
4421 CODE:
4422 if (!coro_old_pp_sselect)
4423 {
4424 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4425 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4426 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4427 }
4428
4429void
4430unpatch_pp_sselect ()
4431 CODE:
4432 if (coro_old_pp_sselect)
4433 {
4434 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4435 coro_old_pp_sselect = 0;
4436 }
4437
4438MODULE = Coro::State PACKAGE = Coro::Util
4439
4440void
4441_exit (int code)
4442 CODE:
4443 _exit (code);
4444
4445NV
4446time ()
4447 CODE:
4448 RETVAL = nvtime (aTHX);
4449 OUTPUT:
4450 RETVAL
4451
4452NV
4453gettimeofday ()
4454 PPCODE:
4455{
4456 UV tv [2];
4457 u2time (aTHX_ tv);
4458 EXTEND (SP, 2);
4459 PUSHs (sv_2mortal (newSVuv (tv [0])));
4460 PUSHs (sv_2mortal (newSVuv (tv [1])));
4461}
4462

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