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Comparing Coro/Coro/State.xs (file contents):
Revision 1.311 by root, Thu Nov 20 01:12:08 2008 UTC vs.
Revision 1.462 by root, Wed Jun 22 20:24:38 2016 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
12 17
18#define ECB_NO_THREADS 1
19#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
13#include <stdio.h> 23#include <stdio.h>
14#include <errno.h> 24#include <errno.h>
15#include <assert.h> 25#include <assert.h>
16 26
17#ifdef WIN32 27#ifndef SvREFCNT_dec_NN
28 #define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
29#endif
30
31#ifndef SvREFCNT_inc_NN
32 #define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
33#endif
34
35#ifndef SVs_PADSTALE
36# define SVs_PADSTALE 0
37#endif
38
39#ifdef PadARRAY
40# define NEWPADAPI 1
41# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
42#else
43typedef AV PADNAMELIST;
44# if !PERL_VERSION_ATLEAST(5,8,0)
45typedef AV PADLIST;
46typedef AV PAD;
47# endif
48# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
49# define PadlistMAX(pl) AvFILLp (pl)
50# define PadlistNAMES(pl) (*PadlistARRAY (pl))
51# define PadARRAY AvARRAY
52# define PadMAX AvFILLp
53# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
54#endif
55#ifndef PadnamelistREFCNT
56# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
57#endif
58#ifndef PadnamelistREFCNT_dec
59# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
60#endif
61
62/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
63/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
64#if PERL_VERSION_ATLEAST(5,19,0)
65# define SVt_BIND SVt_IV
66#endif
67
68#if defined(_WIN32)
69# undef HAS_GETTIMEOFDAY
18# undef setjmp 70# undef setjmp
19# undef longjmp 71# undef longjmp
20# undef _exit 72# undef _exit
21# define setjmp _setjmp /* deep magic */ 73# define setjmp _setjmp /* deep magic */
22#else 74#else
23# include <inttypes.h> /* most portable stdint.h */ 75# include <inttypes.h> /* most portable stdint.h */
24#endif 76#endif
25 77
26#ifdef HAVE_MMAP
27# include <unistd.h>
28# include <sys/mman.h>
29# ifndef MAP_ANONYMOUS
30# ifdef MAP_ANON
31# define MAP_ANONYMOUS MAP_ANON
32# else
33# undef HAVE_MMAP
34# endif
35# endif
36# include <limits.h>
37# ifndef PAGESIZE
38# define PAGESIZE pagesize
39# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
40static long pagesize;
41# else
42# define BOOT_PAGESIZE (void)0
43# endif
44#else
45# define PAGESIZE 0
46# define BOOT_PAGESIZE (void)0
47#endif
48
49#if CORO_USE_VALGRIND
50# include <valgrind/valgrind.h>
51#endif
52
53/* the maximum number of idle cctx that will be pooled */ 78/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 79static int cctx_max_idle = 4;
55 80
56#define PERL_VERSION_ATLEAST(a,b,c) \ 81#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 82# define HAS_SCOPESTACK_NAME 1
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif
108
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD
111#endif
112
113#ifndef CORO_STACKGUARD
114# define CORO_STACKGUARD 0
115#endif 83#endif
116 84
117/* prefer perl internal functions over our own? */ 85/* prefer perl internal functions over our own? */
118#ifndef CORO_PREFER_PERL_FUNCTIONS 86#ifndef CORO_PREFER_PERL_FUNCTIONS
119# define CORO_PREFER_PERL_FUNCTIONS 0 87# define CORO_PREFER_PERL_FUNCTIONS 0
… …
127#else 95#else
128# define dSTACKLEVEL volatile void *stacklevel 96# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel) 97# define STACKLEVEL ((void *)&stacklevel)
130#endif 98#endif
131 99
132#define IN_DESTRUCT (PL_main_cv == Nullcv) 100#define IN_DESTRUCT PL_dirty
133
134#if __GNUC__ >= 3
135# define attribute(x) __attribute__(x)
136# define expect(expr,value) __builtin_expect ((expr),(value))
137# define INLINE static inline
138#else
139# define attribute(x)
140# define expect(expr,value) (expr)
141# define INLINE static
142#endif
143
144#define expect_false(expr) expect ((expr) != 0, 0)
145#define expect_true(expr) expect ((expr) != 0, 1)
146
147#define NOINLINE attribute ((noinline))
148 101
149#include "CoroAPI.h" 102#include "CoroAPI.h"
150#define GCoroAPI (&coroapi) /* very sneaky */ 103#define GCoroAPI (&coroapi) /* very sneaky */
151 104
152#ifdef USE_ITHREADS 105#ifdef USE_ITHREADS
153# if CORO_PTHREAD 106# if CORO_PTHREAD
154static void *coro_thx; 107static void *coro_thx;
155# endif 108# endif
156#endif 109#endif
157 110
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
158static 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]);
159 123
160/* we hijack an hopefully unused CV flag for our purposes */ 124/* we hijack an hopefully unused CV flag for our purposes */
161#define CVf_SLF 0x4000 125#define CVf_SLF 0x4000
162static OP *pp_slf (pTHX); 126static OP *pp_slf (pTHX);
127static void slf_destroy (pTHX_ struct coro *coro);
163 128
164static U32 cctx_gen; 129static U32 cctx_gen;
165static size_t cctx_stacksize = CORO_STACKSIZE; 130static size_t cctx_stacksize = CORO_STACKSIZE;
166static struct CoroAPI coroapi; 131static struct CoroAPI coroapi;
167static AV *main_mainstack; /* used to differentiate between $main and others */ 132static AV *main_mainstack; /* used to differentiate between $main and others */
168static JMPENV *main_top_env; 133static JMPENV *main_top_env;
169static HV *coro_state_stash, *coro_stash; 134static HV *coro_state_stash, *coro_stash;
170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 135static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171 136
137static AV *av_destroy; /* destruction queue */
138static SV *sv_manager; /* the manager coro */
139static SV *sv_idle; /* $Coro::idle */
140
172static GV *irsgv; /* $/ */ 141static GV *irsgv; /* $/ */
173static GV *stdoutgv; /* *STDOUT */ 142static GV *stdoutgv; /* *STDOUT */
174static SV *rv_diehook; 143static SV *rv_diehook;
175static SV *rv_warnhook; 144static SV *rv_warnhook;
176static HV *hv_sig; /* %SIG */
177 145
178/* async_pool helper stuff */ 146/* async_pool helper stuff */
179static SV *sv_pool_rss; 147static SV *sv_pool_rss;
180static SV *sv_pool_size; 148static SV *sv_pool_size;
149static SV *sv_async_pool_idle; /* description string */
181static AV *av_async_pool; 150static AV *av_async_pool; /* idle pool */
151static SV *sv_Coro; /* class string */
152static CV *cv_pool_handler;
182 153
183/* Coro::AnyEvent */ 154/* Coro::AnyEvent */
184static SV *sv_activity; 155static SV *sv_activity;
185 156
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
186static struct coro_cctx *cctx_first; 163static struct coro_cctx *cctx_first;
187static int cctx_count, cctx_idle; 164static int cctx_count, cctx_idle;
188 165
189enum { 166enum
167{
190 CC_MAPPED = 0x01, 168 CC_MAPPED = 0x01,
191 CC_NOREUSE = 0x02, /* throw this away after tracing */ 169 CC_NOREUSE = 0x02, /* throw this away after tracing */
192 CC_TRACE = 0x04, 170 CC_TRACE = 0x04,
193 CC_TRACE_SUB = 0x08, /* trace sub calls */ 171 CC_TRACE_SUB = 0x08, /* trace sub calls */
194 CC_TRACE_LINE = 0x10, /* trace each statement */ 172 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
199typedef struct coro_cctx 177typedef struct coro_cctx
200{ 178{
201 struct coro_cctx *next; 179 struct coro_cctx *next;
202 180
203 /* the stack */ 181 /* the stack */
204 void *sptr; 182 struct coro_stack stack;
205 size_t ssize;
206 183
207 /* cpu state */ 184 /* cpu state */
208 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
209 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
210 JMPENV *top_env; 189 JMPENV *top_env;
211 coro_context cctx; 190 coro_context cctx;
212 191
213 U32 gen; 192 U32 gen;
214#if CORO_USE_VALGRIND 193#if CORO_USE_VALGRIND
215 int valgrind_id; 194 int valgrind_id;
216#endif 195#endif
217 unsigned char flags; 196 unsigned char flags;
218} coro_cctx; 197} coro_cctx;
219 198
199static coro_cctx *cctx_current; /* the currently running cctx */
200
201/*****************************************************************************/
202
203static MGVTBL coro_state_vtbl;
204
220enum { 205enum
206{
221 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
222 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
223 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
224 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) */
225}; 213};
226 214
227/* 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 */
228typedef struct 216typedef struct
229{ 217{
230 SV *defsv;
231 AV *defav;
232 SV *errsv;
233 SV *irsgv;
234#define VAR(name,type) type name; 218 #define VARx(name,expr,type) type name;
235# include "state.h" 219 #include "state.h"
236#undef VAR
237} perl_slots; 220} perl_slots;
238 221
222/* how many context stack entries do we need for perl_slots */
239#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 223#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
240 224
241/* this is a structure representing a perl-level coroutine */ 225/* this is a structure representing a perl-level coroutine */
242struct coro { 226struct coro
227{
243 /* the C coroutine allocated to this perl coroutine, if any */ 228 /* the C coroutine allocated to this perl coroutine, if any */
244 coro_cctx *cctx; 229 coro_cctx *cctx;
230
231 /* ready queue */
232 struct coro *next_ready;
245 233
246 /* state data */ 234 /* state data */
247 struct CoroSLF slf_frame; /* saved slf frame */ 235 struct CoroSLF slf_frame; /* saved slf frame */
248 AV *mainstack; 236 AV *mainstack;
249 perl_slots *slot; /* basically the saved sp */ 237 perl_slots *slot; /* basically the saved sp */
250 238
251 CV *startcv; /* the CV to execute */ 239 CV *startcv; /* the CV to execute */
252 AV *args; /* data associated with this coroutine (initial args) */ 240 AV *args; /* data associated with this coroutine (initial args) */
253 int refcnt; /* coroutines are refcounted, yes */
254 int flags; /* CF_ flags */ 241 int flags; /* CF_ flags */
255 HV *hv; /* the perl hash associated with this coro, if any */ 242 HV *hv; /* the perl hash associated with this coro, if any */
256 void (*on_destroy)(pTHX_ struct coro *coro);
257 243
258 /* statistics */ 244 /* statistics */
259 int usecount; /* number of transfers to this coro */ 245 int usecount; /* number of transfers to this coro */
260 246
261 /* coro process data */ 247 /* coro process data */
262 int prio; 248 int prio;
263 SV *except; /* exception to be thrown */ 249 SV *except; /* exception to be thrown */
264 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 */
265 253
266 /* async_pool */ 254 /* async_pool */
267 SV *saved_deffh; 255 SV *saved_deffh;
256 SV *invoke_cb;
257 AV *invoke_av;
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;
268 268
269 /* linked list */ 269 /* linked list */
270 struct coro *next, *prev; 270 struct coro *next, *prev;
271}; 271};
272 272
273typedef struct coro *Coro__State; 273typedef struct coro *Coro__State;
274typedef struct coro *Coro__State_or_hashref; 274typedef struct coro *Coro__State_or_hashref;
275 275
276/* the following variables are effectively part of the perl context */ 276/* the following variables are effectively part of the perl context */
277/* and get copied between struct coro and these variables */ 277/* and get copied between struct coro and these variables */
278/* the mainr easonw e don't support windows process emulation */ 278/* the main reason we don't support windows process emulation */
279static struct CoroSLF slf_frame; /* the current slf frame */ 279static struct CoroSLF slf_frame; /* the current slf frame */
280 280
281/** Coro ********************************************************************/ 281/** Coro ********************************************************************/
282 282
283#define PRIO_MAX 3 283#define CORO_PRIO_MAX 3
284#define PRIO_HIGH 1 284#define CORO_PRIO_HIGH 1
285#define PRIO_NORMAL 0 285#define CORO_PRIO_NORMAL 0
286#define PRIO_LOW -1 286#define CORO_PRIO_LOW -1
287#define PRIO_IDLE -3 287#define CORO_PRIO_IDLE -3
288#define PRIO_MIN -4 288#define CORO_PRIO_MIN -4
289 289
290/* for Coro.pm */ 290/* for Coro.pm */
291static SV *coro_current; 291static SV *coro_current;
292static SV *coro_readyhook; 292static SV *coro_readyhook;
293static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 293static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
294static CV *cv_coro_run; 294static CV *cv_coro_run;
295static struct coro *coro_first; 295static struct coro *coro_first;
296#define coro_nready coroapi.nready 296#define coro_nready coroapi.nready
297 297
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
298/** lowlevel stuff **********************************************************/ 393/** lowlevel stuff **********************************************************/
299 394
300static SV * 395static SV * ecb_noinline
301coro_get_sv (pTHX_ const char *name, int create) 396coro_get_sv (pTHX_ const char *name, int create)
302{ 397{
303#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
304 /* 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 */
305 get_sv (name, create); 400 get_sv (name, create);
306#endif 401#endif
307 return get_sv (name, create); 402 return get_sv (name, create);
308} 403}
309 404
310static AV * 405static AV * ecb_noinline
311coro_get_av (pTHX_ const char *name, int create) 406coro_get_av (pTHX_ const char *name, int create)
312{ 407{
313#if PERL_VERSION_ATLEAST (5,10,0) 408#if PERL_VERSION_ATLEAST (5,10,0)
314 /* 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 */
315 get_av (name, create); 410 get_av (name, create);
316#endif 411#endif
317 return get_av (name, create); 412 return get_av (name, create);
318} 413}
319 414
320static HV * 415static HV * ecb_noinline
321coro_get_hv (pTHX_ const char *name, int create) 416coro_get_hv (pTHX_ const char *name, int create)
322{ 417{
323#if PERL_VERSION_ATLEAST (5,10,0) 418#if PERL_VERSION_ATLEAST (5,10,0)
324 /* 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 */
325 get_hv (name, create); 420 get_hv (name, create);
326#endif 421#endif
327 return get_hv (name, create); 422 return get_hv (name, create);
328} 423}
329 424
330/* may croak */ 425ecb_inline void
331INLINE CV * 426coro_times_update (void)
332coro_sv_2cv (pTHX_ SV *sv)
333{ 427{
334 HV *st; 428#ifdef coro_clock_gettime
335 GV *gvp; 429 struct timespec ts;
336 return sv_2cv (sv, &st, &gvp, 0);
337}
338 430
339static 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 *
340coro_clone_padlist (pTHX_ CV *cv) 531coro_derive_padlist (pTHX_ CV *cv)
341{ 532{
342 AV *padlist = CvPADLIST (cv); 533 PADLIST *padlist = CvPADLIST (cv);
343 AV *newpadlist, *newpad; 534 PADLIST *newpadlist;
535 PADNAMELIST *padnames;
536 PAD *newpad;
537 PADOFFSET off = PadlistMAX (padlist) + 1;
344 538
345 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. */
346 AvREAL_off (newpadlist); 567 AvREAL_off (newpadlist);
347#if PERL_VERSION_ATLEAST (5,10,0)
348 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
349#else
350 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
351#endif 568#endif
352 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
353 --AvFILLp (padlist);
354 569
355 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 570 /* Already extended to 2 elements by newPADLIST. */
356 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;
357 578
358 return newpadlist; 579 return newpadlist;
359} 580}
360 581
361static void 582ecb_inline void
362free_padlist (pTHX_ AV *padlist) 583free_padlist (pTHX_ PADLIST *padlist)
363{ 584{
364 /* may be during global destruction */ 585 /* may be during global destruction */
365 if (SvREFCNT (padlist)) 586 if (!IN_DESTRUCT)
366 { 587 {
367 I32 i = AvFILLp (padlist); 588 I32 i = PadlistMAX (padlist);
368 while (i >= 0) 589
590 while (i > 0) /* special-case index 0 */
369 { 591 {
370 SV **svp = av_fetch (padlist, i--, FALSE); 592 /* we try to be extra-careful here */
593 PAD *pad = PadlistARRAY (padlist)[i--];
594
371 if (svp) 595 if (pad)
372 { 596 {
373 SV *sv; 597 I32 j = PadMAX (pad);
374 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 598
599 while (j >= 0)
375 SvREFCNT_dec (sv); 600 SvREFCNT_dec (PadARRAY (pad)[j--]);
376 601
602 PadMAX (pad) = -1;
377 SvREFCNT_dec (*svp); 603 SvREFCNT_dec (pad);
378 } 604 }
379 } 605 }
380 606
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);
381 SvREFCNT_dec ((SV*)padlist); 615 SvREFCNT_dec ((SV*)padlist);
616#endif
382 } 617 }
383} 618}
384 619
385static int 620static int
386coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 621coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
387{ 622{
388 AV *padlist; 623 PADLIST *padlist;
389 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;
390 626
391 /* casting is fun. */ 627 /* perl manages to free our internal AV and _then_ call us */
392 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 628 if (IN_DESTRUCT)
629 return 0;
630
631 while (len--)
393 free_padlist (aTHX_ padlist); 632 free_padlist (aTHX_ padlists[len]);
394
395 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
396 633
397 return 0; 634 return 0;
398} 635}
399
400#define CORO_MAGIC_type_cv 26
401#define CORO_MAGIC_type_state PERL_MAGIC_ext
402 636
403static MGVTBL coro_cv_vtbl = { 637static MGVTBL coro_cv_vtbl = {
404 0, 0, 0, 0, 638 0, 0, 0, 0,
405 coro_cv_free 639 coro_cv_free
406}; 640};
407 641
408#define CORO_MAGIC_NN(sv, type) \
409 (expect_true (SvMAGIC (sv)->mg_type == type) \
410 ? SvMAGIC (sv) \
411 : mg_find (sv, type))
412
413#define CORO_MAGIC(sv, type) \
414 (expect_true (SvMAGIC (sv)) \
415 ? CORO_MAGIC_NN (sv, type) \
416 : 0)
417
418#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
419#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
420
421INLINE struct coro *
422SvSTATE_ (pTHX_ SV *coro)
423{
424 HV *stash;
425 MAGIC *mg;
426
427 if (SvROK (coro))
428 coro = SvRV (coro);
429
430 if (expect_false (SvTYPE (coro) != SVt_PVHV))
431 croak ("Coro::State object required");
432
433 stash = SvSTASH (coro);
434 if (expect_false (stash != coro_stash && stash != coro_state_stash))
435 {
436 /* very slow, but rare, check */
437 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
438 croak ("Coro::State object required");
439 }
440
441 mg = CORO_MAGIC_state (coro);
442 return (struct coro *)mg->mg_ptr;
443}
444
445#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
446
447/* faster than SvSTATE, but expects a coroutine hv */
448#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
449#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
450
451/* the next two functions merely cache the padlists */ 642/* the next two functions merely cache the padlists */
452static void 643ecb_inline void
453get_padlist (pTHX_ CV *cv) 644get_padlist (pTHX_ CV *cv)
454{ 645{
455 MAGIC *mg = CORO_MAGIC_cv (cv); 646 MAGIC *mg = CORO_MAGIC_cv (cv);
456 AV *av; 647 size_t *lenp;
457 648
458 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 649 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
459 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 650 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
460 else 651 else
461 { 652 {
462#if CORO_PREFER_PERL_FUNCTIONS 653#if CORO_PREFER_PERL_FUNCTIONS
463 /* this is probably cleaner? but also slower! */ 654 /* this is probably cleaner? but also slower! */
464 /* in practise, it seems to be less stable */ 655 /* in practise, it seems to be less stable */
465 CV *cp = Perl_cv_clone (aTHX_ cv); 656 CV *cp = Perl_cv_clone (aTHX_ cv);
466 CvPADLIST (cv) = CvPADLIST (cp); 657 CvPADLIST (cv) = CvPADLIST (cp);
467 CvPADLIST (cp) = 0; 658 CvPADLIST (cp) = 0;
468 SvREFCNT_dec (cp); 659 SvREFCNT_dec (cp);
469#else 660#else
470 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 661 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
471#endif 662#endif
472 } 663 }
473} 664}
474 665
475static void 666ecb_inline void
476put_padlist (pTHX_ CV *cv) 667put_padlist (pTHX_ CV *cv)
477{ 668{
478 MAGIC *mg = CORO_MAGIC_cv (cv); 669 MAGIC *mg = CORO_MAGIC_cv (cv);
479 AV *av;
480 670
481 if (expect_false (!mg)) 671 if (ecb_expect_false (!mg))
672 {
482 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);
483 681
484 av = (AV *)mg->mg_obj; 682 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
485
486 if (expect_false (AvFILLp (av) >= AvMAX (av)))
487 av_extend (av, AvMAX (av) + 1);
488
489 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
490} 683}
491 684
492/** load & save, init *******************************************************/ 685/** load & save, init *******************************************************/
686
687ecb_inline void
688swap_sv (SV *a, SV *b)
689{
690 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
691 SV tmp;
692
693 /* swap sv_any */
694 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
695
696 /* swap sv_flags */
697 SvFLAGS (&tmp) = SvFLAGS (a);
698 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
699 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
700
701#if PERL_VERSION_ATLEAST (5,10,0)
702 /* perl 5.10 and later complicates this _quite_ a bit, but it also
703 * is much faster, so no quarrels here. alternatively, we could
704 * sv_upgrade to avoid this.
705 */
706 {
707 /* swap sv_u */
708 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
709
710 /* if SvANY points to the head, we need to adjust the pointers,
711 * as the pointer for a still points to b, and maybe vice versa.
712 */
713 U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
714 #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
715 svany_in_head_set |= 1 << SVt_NV;
716 #endif
717
718 #define svany_in_head(type) (svany_in_head_set & (1 << (type)))
719
720 if (svany_in_head (SvTYPE (a)))
721 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
722
723 if (svany_in_head (SvTYPE (b)))
724 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
725 }
726#endif
727}
728
729/* swap sv heads, at least logically */
730static void
731swap_svs_enter (pTHX_ Coro__State c)
732{
733 int i;
734
735 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
736 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
737}
738
739static void
740swap_svs_leave (pTHX_ Coro__State c)
741{
742 int i;
743
744 for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2)
745 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
746}
747
748#define SWAP_SVS_ENTER(coro) \
749 if (ecb_expect_false ((coro)->swap_sv)) \
750 swap_svs_enter (aTHX_ (coro))
751
752#define SWAP_SVS_LEAVE(coro) \
753 if (ecb_expect_false ((coro)->swap_sv)) \
754 swap_svs_leave (aTHX_ (coro))
755
756static void
757on_enterleave_call (pTHX_ SV *cb);
493 758
494static void 759static void
495load_perl (pTHX_ Coro__State c) 760load_perl (pTHX_ Coro__State c)
496{ 761{
497 perl_slots *slot = c->slot; 762 perl_slots *slot = c->slot;
498 c->slot = 0; 763 c->slot = 0;
499 764
500 PL_mainstack = c->mainstack; 765 PL_mainstack = c->mainstack;
501 766
502 GvSV (PL_defgv) = slot->defsv; 767#if CORO_JIT
503 GvAV (PL_defgv) = slot->defav; 768 load_perl_slots (slot);
504 GvSV (PL_errgv) = slot->errsv; 769#else
505 GvSV (irsgv) = slot->irsgv;
506
507 #define VAR(name,type) PL_ ## name = slot->name; 770 #define VARx(name,expr,type) expr = slot->name;
508 # include "state.h" 771 #include "state.h"
509 #undef VAR 772#endif
510 773
511 { 774 {
512 dSP; 775 dSP;
513 776
514 CV *cv; 777 CV *cv;
515 778
516 /* now do the ugly restore mess */ 779 /* now do the ugly restore mess */
517 while (expect_true (cv = (CV *)POPs)) 780 while (ecb_expect_true (cv = (CV *)POPs))
518 { 781 {
519 put_padlist (aTHX_ cv); /* mark this padlist as available */ 782 put_padlist (aTHX_ cv); /* mark this padlist as available */
520 CvDEPTH (cv) = PTR2IV (POPs); 783 CvDEPTH (cv) = PTR2IV (POPs);
521 CvPADLIST (cv) = (AV *)POPs; 784 CvPADLIST (cv) = (PADLIST *)POPs;
522 } 785 }
523 786
524 PUTBACK; 787 PUTBACK;
525 } 788 }
526 789
527 slf_frame = c->slf_frame; 790 slf_frame = c->slf_frame;
528 CORO_THROW = c->except; 791 CORO_THROW = c->except;
792
793 if (ecb_expect_false (enable_times))
794 {
795 if (ecb_expect_false (!times_valid))
796 coro_times_update ();
797
798 coro_times_sub (c);
799 }
800
801 if (ecb_expect_false (c->on_enter))
802 {
803 int i;
804
805 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
806 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
807 }
808
809 if (ecb_expect_false (c->on_enter_xs))
810 {
811 int i;
812
813 for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
814 ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
815 }
816
817 SWAP_SVS_ENTER (c);
529} 818}
530 819
531static void 820static void
532save_perl (pTHX_ Coro__State c) 821save_perl (pTHX_ Coro__State c)
533{ 822{
823 SWAP_SVS_LEAVE (c);
824
825 if (ecb_expect_false (c->on_leave_xs))
826 {
827 int i;
828
829 for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
830 ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
831 }
832
833 if (ecb_expect_false (c->on_leave))
834 {
835 int i;
836
837 for (i = AvFILLp (c->on_leave); i >= 0; --i)
838 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
839 }
840
841 times_valid = 0;
842
843 if (ecb_expect_false (enable_times))
844 {
845 coro_times_update (); times_valid = 1;
846 coro_times_add (c);
847 }
848
534 c->except = CORO_THROW; 849 c->except = CORO_THROW;
535 c->slf_frame = slf_frame; 850 c->slf_frame = slf_frame;
536 851
537 { 852 {
538 dSP; 853 dSP;
… …
547 862
548 XPUSHs (Nullsv); 863 XPUSHs (Nullsv);
549 /* this loop was inspired by pp_caller */ 864 /* this loop was inspired by pp_caller */
550 for (;;) 865 for (;;)
551 { 866 {
552 while (expect_true (cxix >= 0)) 867 while (ecb_expect_true (cxix >= 0))
553 { 868 {
554 PERL_CONTEXT *cx = &ccstk[cxix--]; 869 PERL_CONTEXT *cx = &ccstk[cxix--];
555 870
556 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 871 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
557 { 872 {
558 CV *cv = cx->blk_sub.cv; 873 CV *cv = cx->blk_sub.cv;
559 874
560 if (expect_true (CvDEPTH (cv))) 875 if (ecb_expect_true (CvDEPTH (cv)))
561 { 876 {
562 EXTEND (SP, 3); 877 EXTEND (SP, 3);
563 PUSHs ((SV *)CvPADLIST (cv)); 878 PUSHs ((SV *)CvPADLIST (cv));
564 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 879 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
565 PUSHs ((SV *)cv); 880 PUSHs ((SV *)cv);
… …
568 get_padlist (aTHX_ cv); 883 get_padlist (aTHX_ cv);
569 } 884 }
570 } 885 }
571 } 886 }
572 887
573 if (expect_true (top_si->si_type == PERLSI_MAIN)) 888 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
574 break; 889 break;
575 890
576 top_si = top_si->si_prev; 891 top_si = top_si->si_prev;
577 ccstk = top_si->si_cxstack; 892 ccstk = top_si->si_cxstack;
578 cxix = top_si->si_cxix; 893 cxix = top_si->si_cxix;
… …
580 895
581 PUTBACK; 896 PUTBACK;
582 } 897 }
583 898
584 /* allocate some space on the context stack for our purposes */ 899 /* allocate some space on the context stack for our purposes */
585 /* we manually unroll here, as usually 2 slots is enough */ 900 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
586 if (SLOT_COUNT >= 1) CXINC;
587 if (SLOT_COUNT >= 2) CXINC;
588 if (SLOT_COUNT >= 3) CXINC;
589 { 901 {
590 int i; 902 unsigned int i;
903
591 for (i = 3; i < SLOT_COUNT; ++i) 904 for (i = 0; i < SLOT_COUNT; ++i)
592 CXINC; 905 CXINC;
593 } 906
594 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 907 cxstack_ix -= SLOT_COUNT; /* undo allocation */
908 }
595 909
596 c->mainstack = PL_mainstack; 910 c->mainstack = PL_mainstack;
597 911
598 { 912 {
599 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 913 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
600 914
601 slot->defav = GvAV (PL_defgv); 915#if CORO_JIT
602 slot->defsv = DEFSV; 916 save_perl_slots (slot);
603 slot->errsv = ERRSV; 917#else
604 slot->irsgv = GvSV (irsgv);
605
606 #define VAR(name,type) slot->name = PL_ ## name; 918 #define VARx(name,expr,type) slot->name = expr;
607 # include "state.h" 919 #include "state.h"
608 #undef VAR 920#endif
609 } 921 }
610} 922}
611 923
612/* 924/*
613 * allocate various perl stacks. This is almost an exact copy 925 * allocate various perl stacks. This is almost an exact copy
… …
619# define coro_init_stacks(thx) init_stacks () 931# define coro_init_stacks(thx) init_stacks ()
620#else 932#else
621static void 933static void
622coro_init_stacks (pTHX) 934coro_init_stacks (pTHX)
623{ 935{
624 PL_curstackinfo = new_stackinfo(32, 8); 936 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
625 PL_curstackinfo->si_type = PERLSI_MAIN; 937 PL_curstackinfo->si_type = PERLSI_MAIN;
626 PL_curstack = PL_curstackinfo->si_stack; 938 PL_curstack = PL_curstackinfo->si_stack;
627 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 939 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
628 940
629 PL_stack_base = AvARRAY(PL_curstack); 941 PL_stack_base = AvARRAY(PL_curstack);
… …
644#endif 956#endif
645 957
646 New(54,PL_scopestack,8,I32); 958 New(54,PL_scopestack,8,I32);
647 PL_scopestack_ix = 0; 959 PL_scopestack_ix = 0;
648 PL_scopestack_max = 8; 960 PL_scopestack_max = 8;
961#if HAS_SCOPESTACK_NAME
962 New(54,PL_scopestack_name,8,const char*);
963#endif
649 964
650 New(54,PL_savestack,24,ANY); 965 New(54,PL_savestack,24,ANY);
651 PL_savestack_ix = 0; 966 PL_savestack_ix = 0;
652 PL_savestack_max = 24; 967 PL_savestack_max = 24;
968#if !PERL_VERSION_ATLEAST (5,24,0)
969 /* perl 5.24 moves SS_MAXPUSH optimisation from */
970 /* the header macros to PL_savestack_max */
971 PL_savestack_max -= SS_MAXPUSH;
972#endif
653 973
654#if !PERL_VERSION_ATLEAST (5,10,0) 974#if !PERL_VERSION_ATLEAST (5,10,0)
655 New(54,PL_retstack,4,OP*); 975 New(54,PL_retstack,4,OP*);
656 PL_retstack_ix = 0; 976 PL_retstack_ix = 0;
657 PL_retstack_max = 4; 977 PL_retstack_max = 4;
… …
681 } 1001 }
682 1002
683 Safefree (PL_tmps_stack); 1003 Safefree (PL_tmps_stack);
684 Safefree (PL_markstack); 1004 Safefree (PL_markstack);
685 Safefree (PL_scopestack); 1005 Safefree (PL_scopestack);
1006#if HAS_SCOPESTACK_NAME
1007 Safefree (PL_scopestack_name);
1008#endif
686 Safefree (PL_savestack); 1009 Safefree (PL_savestack);
687#if !PERL_VERSION_ATLEAST (5,10,0) 1010#if !PERL_VERSION_ATLEAST (5,10,0)
688 Safefree (PL_retstack); 1011 Safefree (PL_retstack);
689#endif 1012#endif
690} 1013}
691 1014
1015#define CORO_RSS \
1016 rss += sizeof (SYM (curstackinfo)); \
1017 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
1018 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
1019 rss += SYM (tmps_max) * sizeof (SV *); \
1020 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
1021 rss += SYM (scopestack_max) * sizeof (I32); \
1022 rss += SYM (savestack_max) * sizeof (ANY);
1023
692static size_t 1024static size_t
693coro_rss (pTHX_ struct coro *coro) 1025coro_rss (pTHX_ struct coro *coro)
694{ 1026{
695 size_t rss = sizeof (*coro); 1027 size_t rss = sizeof (*coro);
696 1028
697 if (coro->mainstack) 1029 if (coro->mainstack)
698 { 1030 {
699 perl_slots tmp_slot;
700 perl_slots *slot;
701
702 if (coro->flags & CF_RUNNING) 1031 if (coro->flags & CF_RUNNING)
703 { 1032 {
704 slot = &tmp_slot; 1033 #define SYM(sym) PL_ ## sym
705 1034 CORO_RSS;
706 #define VAR(name,type) slot->name = PL_ ## name;
707 # include "state.h"
708 #undef VAR 1035 #undef SYM
709 } 1036 }
710 else 1037 else
711 slot = coro->slot;
712
713 if (slot)
714 { 1038 {
715 rss += sizeof (slot->curstackinfo); 1039 #define SYM(sym) coro->slot->sym
716 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 1040 CORO_RSS;
717 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 1041 #undef SYM
718 rss += slot->tmps_max * sizeof (SV *);
719 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
720 rss += slot->scopestack_max * sizeof (I32);
721 rss += slot->savestack_max * sizeof (ANY);
722
723#if !PERL_VERSION_ATLEAST (5,10,0)
724 rss += slot->retstack_max * sizeof (OP *);
725#endif
726 } 1042 }
727 } 1043 }
728 1044
729 return rss; 1045 return rss;
730} 1046}
… …
743#endif 1059#endif
744 1060
745/* 1061/*
746 * This overrides the default magic get method of %SIG elements. 1062 * This overrides the default magic get method of %SIG elements.
747 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1063 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
748 * and instead of tryign to save and restore the hash elements, we just provide 1064 * and instead of trying to save and restore the hash elements (extremely slow),
749 * readback here. 1065 * we just provide our own readback here.
750 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
751 * not expecting this to actually change the hook. This is a potential problem
752 * when a schedule happens then, but we ignore this.
753 */ 1066 */
754static int 1067static int ecb_cold
755coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1068coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
756{ 1069{
757 const char *s = MgPV_nolen_const (mg); 1070 const char *s = MgPV_nolen_const (mg);
758 1071
759 if (*s == '_') 1072 if (*s == '_')
760 { 1073 {
761 SV **svp = 0; 1074 SV **svp = 0;
762 1075
763 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1076 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
764 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1077 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
765 1078
766 if (svp) 1079 if (svp)
767 { 1080 {
768 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1081 SV *ssv;
1082
1083 if (!*svp)
1084 ssv = &PL_sv_undef;
1085 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1086 ssv = sv_2mortal (newRV_inc (*svp));
1087 else
1088 ssv = *svp;
1089
1090 sv_setsv (sv, ssv);
769 return 0; 1091 return 0;
770 } 1092 }
771 } 1093 }
772 1094
773 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1095 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
774} 1096}
775 1097
776static int 1098static int ecb_cold
777coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1099coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
778{ 1100{
779 const char *s = MgPV_nolen_const (mg); 1101 const char *s = MgPV_nolen_const (mg);
780 1102
781 if (*s == '_') 1103 if (*s == '_')
… …
795 } 1117 }
796 1118
797 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1119 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
798} 1120}
799 1121
800static int 1122static int ecb_cold
801coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1123coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
802{ 1124{
803 const char *s = MgPV_nolen_const (mg); 1125 const char *s = MgPV_nolen_const (mg);
804 1126
805 if (*s == '_') 1127 if (*s == '_')
… …
810 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1132 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
811 1133
812 if (svp) 1134 if (svp)
813 { 1135 {
814 SV *old = *svp; 1136 SV *old = *svp;
815 *svp = newSVsv (sv); 1137 *svp = SvOK (sv) ? newSVsv (sv) : 0;
816 SvREFCNT_dec (old); 1138 SvREFCNT_dec (old);
817 return 0; 1139 return 0;
818 } 1140 }
819 } 1141 }
820 1142
… …
832slf_check_nop (pTHX_ struct CoroSLF *frame) 1154slf_check_nop (pTHX_ struct CoroSLF *frame)
833{ 1155{
834 return 0; 1156 return 0;
835} 1157}
836 1158
837static UNOP coro_setup_op; 1159static int
1160slf_check_repeat (pTHX_ struct CoroSLF *frame)
1161{
1162 return 1;
1163}
838 1164
839static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1165static UNOP init_perl_op;
1166
1167ecb_noinline static void /* noinline to keep it out of the transfer fast path */
840coro_setup (pTHX_ struct coro *coro) 1168init_perl (pTHX_ struct coro *coro)
841{ 1169{
842 /* 1170 /*
843 * emulate part of the perl startup here. 1171 * emulate part of the perl startup here.
844 */ 1172 */
845 coro_init_stacks (aTHX); 1173 coro_init_stacks (aTHX);
846 1174
847 PL_runops = RUNOPS_DEFAULT; 1175 PL_runops = RUNOPS_DEFAULT;
848 PL_curcop = &PL_compiling; 1176 PL_curcop = &PL_compiling;
849 PL_in_eval = EVAL_NULL; 1177 PL_in_eval = EVAL_NULL;
850 PL_comppad = 0; 1178 PL_comppad = 0;
1179 PL_comppad_name = 0;
1180 PL_comppad_name_fill = 0;
1181 PL_comppad_name_floor = 0;
851 PL_curpm = 0; 1182 PL_curpm = 0;
852 PL_curpad = 0; 1183 PL_curpad = 0;
853 PL_localizing = 0; 1184 PL_localizing = 0;
854 PL_dirty = 0;
855 PL_restartop = 0; 1185 PL_restartop = 0;
856#if PERL_VERSION_ATLEAST (5,10,0) 1186#if PERL_VERSION_ATLEAST (5,10,0)
857 PL_parser = 0; 1187 PL_parser = 0;
858#endif 1188#endif
1189 PL_hints = 0;
859 1190
860 /* recreate the die/warn hooks */ 1191 /* recreate the die/warn hooks */
861 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1192 PL_diehook = SvREFCNT_inc (rv_diehook);
862 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1193 PL_warnhook = SvREFCNT_inc (rv_warnhook);
863 1194
864 GvSV (PL_defgv) = newSV (0); 1195 GvSV (PL_defgv) = newSV (0);
865 GvAV (PL_defgv) = coro->args; coro->args = 0; 1196 GvAV (PL_defgv) = coro->args; coro->args = 0;
866 GvSV (PL_errgv) = newSV (0); 1197 GvSV (PL_errgv) = newSV (0);
867 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1198 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1199 GvHV (PL_hintgv) = newHV ();
1200#if PERL_VERSION_ATLEAST (5,10,0)
1201 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1202#endif
868 PL_rs = newSVsv (GvSV (irsgv)); 1203 PL_rs = newSVsv (GvSV (irsgv));
869 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1204 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
870 1205
871 { 1206 {
872 dSP; 1207 dSP;
… …
887 /* this newly created coroutine might be run on an existing cctx which most 1222 /* this newly created coroutine might be run on an existing cctx which most
888 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1223 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
889 */ 1224 */
890 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1225 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
891 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1226 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1227 slf_frame.destroy = 0;
892 1228
893 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1229 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
894 coro_setup_op.op_next = PL_op; 1230 init_perl_op.op_next = PL_op;
895 coro_setup_op.op_type = OP_CUSTOM; 1231 init_perl_op.op_type = OP_ENTERSUB;
896 coro_setup_op.op_ppaddr = pp_slf; 1232 init_perl_op.op_ppaddr = pp_slf;
897 /* no flags etc. required, as an init function won't be called */ 1233 /* no flags etc. required, as an init function won't be called */
898 1234
899 PL_op = (OP *)&coro_setup_op; 1235 PL_op = (OP *)&init_perl_op;
900 1236
901 /* copy throw, in case it was set before coro_setup */ 1237 /* copy throw, in case it was set before init_perl */
902 CORO_THROW = coro->except; 1238 CORO_THROW = coro->except;
903}
904 1239
1240 SWAP_SVS_ENTER (coro);
1241
1242 if (ecb_expect_false (enable_times))
1243 {
1244 coro_times_update ();
1245 coro_times_sub (coro);
1246 }
1247}
1248
905static void 1249static void
906coro_destruct (pTHX_ struct coro *coro) 1250coro_unwind_stacks (pTHX)
907{ 1251{
908 if (!IN_DESTRUCT) 1252 if (!IN_DESTRUCT)
909 { 1253 {
910 /* restore all saved variables and stuff */ 1254 /* restore all saved variables and stuff */
911 LEAVE_SCOPE (0); 1255 LEAVE_SCOPE (0);
… …
919 POPSTACK_TO (PL_mainstack); 1263 POPSTACK_TO (PL_mainstack);
920 1264
921 /* unwind main stack */ 1265 /* unwind main stack */
922 dounwind (-1); 1266 dounwind (-1);
923 } 1267 }
1268}
924 1269
925 SvREFCNT_dec (GvSV (PL_defgv)); 1270static void
926 SvREFCNT_dec (GvAV (PL_defgv)); 1271destroy_perl (pTHX_ struct coro *coro)
927 SvREFCNT_dec (GvSV (PL_errgv)); 1272{
928 SvREFCNT_dec (PL_defoutgv); 1273 SV *svf [9];
929 SvREFCNT_dec (PL_rs);
930 SvREFCNT_dec (GvSV (irsgv));
931 1274
932 SvREFCNT_dec (PL_diehook);
933 SvREFCNT_dec (PL_warnhook);
934 1275 {
1276 SV *old_current = SvRV (coro_current);
1277 struct coro *current = SvSTATE (old_current);
1278
1279 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1280
1281 save_perl (aTHX_ current);
1282
1283 /* this will cause transfer_check to croak on block*/
1284 SvRV_set (coro_current, (SV *)coro->hv);
1285
1286 load_perl (aTHX_ coro);
1287
1288 /* restore swapped sv's */
1289 SWAP_SVS_LEAVE (coro);
1290
1291 coro_unwind_stacks (aTHX);
1292
1293 coro_destruct_stacks (aTHX);
1294
1295 /* now save some sv's to be free'd later */
1296 svf [0] = GvSV (PL_defgv);
1297 svf [1] = (SV *)GvAV (PL_defgv);
1298 svf [2] = GvSV (PL_errgv);
1299 svf [3] = (SV *)PL_defoutgv;
1300 svf [4] = PL_rs;
1301 svf [5] = GvSV (irsgv);
1302 svf [6] = (SV *)GvHV (PL_hintgv);
1303 svf [7] = PL_diehook;
1304 svf [8] = PL_warnhook;
1305 assert (9 == sizeof (svf) / sizeof (*svf));
1306
1307 SvRV_set (coro_current, old_current);
1308
1309 load_perl (aTHX_ current);
1310 }
1311
1312 {
1313 unsigned int i;
1314
1315 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1316 SvREFCNT_dec (svf [i]);
1317
935 SvREFCNT_dec (coro->saved_deffh); 1318 SvREFCNT_dec (coro->saved_deffh);
936 SvREFCNT_dec (coro->rouse_cb); 1319 SvREFCNT_dec (coro->rouse_cb);
937 1320 SvREFCNT_dec (coro->invoke_cb);
938 coro_destruct_stacks (aTHX); 1321 SvREFCNT_dec (coro->invoke_av);
1322 SvREFCNT_dec (coro->on_enter_xs);
1323 SvREFCNT_dec (coro->on_leave_xs);
1324 }
939} 1325}
940 1326
941INLINE void 1327ecb_inline void
942free_coro_mortal (pTHX) 1328free_coro_mortal (pTHX)
943{ 1329{
944 if (expect_true (coro_mortal)) 1330 if (ecb_expect_true (coro_mortal))
945 { 1331 {
946 SvREFCNT_dec (coro_mortal); 1332 SvREFCNT_dec ((SV *)coro_mortal);
947 coro_mortal = 0; 1333 coro_mortal = 0;
948 } 1334 }
949} 1335}
950 1336
951static int 1337static int
952runops_trace (pTHX) 1338runops_trace (pTHX)
953{ 1339{
954 COP *oldcop = 0; 1340 COP *oldcop = 0;
955 int oldcxix = -2; 1341 int oldcxix = -2;
956 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
957 coro_cctx *cctx = coro->cctx;
958 1342
959 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1343 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
960 { 1344 {
961 PERL_ASYNC_CHECK (); 1345 PERL_ASYNC_CHECK ();
962 1346
963 if (cctx->flags & CC_TRACE_ALL) 1347 if (cctx_current->flags & CC_TRACE_ALL)
964 { 1348 {
965 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1349 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
966 { 1350 {
967 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1351 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
968 SV **bot, **top; 1352 SV **bot, **top;
969 AV *av = newAV (); /* return values */ 1353 AV *av = newAV (); /* return values */
970 SV **cb; 1354 SV **cb;
… …
1007 1391
1008 if (PL_curcop != &PL_compiling) 1392 if (PL_curcop != &PL_compiling)
1009 { 1393 {
1010 SV **cb; 1394 SV **cb;
1011 1395
1012 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1396 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1013 { 1397 {
1014 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1398 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1015 1399
1016 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1400 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1017 { 1401 {
1018 runops_proc_t old_runops = PL_runops;
1019 dSP; 1402 dSP;
1020 GV *gv = CvGV (cx->blk_sub.cv); 1403 GV *gv = CvGV (cx->blk_sub.cv);
1021 SV *fullname = sv_2mortal (newSV (0)); 1404 SV *fullname = sv_2mortal (newSV (0));
1022 1405
1023 if (isGV (gv)) 1406 if (isGV (gv))
… …
1041 } 1424 }
1042 1425
1043 oldcxix = cxstack_ix; 1426 oldcxix = cxstack_ix;
1044 } 1427 }
1045 1428
1046 if (cctx->flags & CC_TRACE_LINE) 1429 if (cctx_current->flags & CC_TRACE_LINE)
1047 { 1430 {
1048 dSP; 1431 dSP;
1049 1432
1050 PL_runops = RUNOPS_DEFAULT; 1433 PL_runops = RUNOPS_DEFAULT;
1051 ENTER; 1434 ENTER;
… …
1070 1453
1071 TAINT_NOT; 1454 TAINT_NOT;
1072 return 0; 1455 return 0;
1073} 1456}
1074 1457
1075static struct coro_cctx *cctx_ssl_cctx;
1076static struct CoroSLF cctx_ssl_frame; 1458static struct CoroSLF cctx_ssl_frame;
1077 1459
1078static void 1460static void
1079slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1461slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1080{ 1462{
1081 ta->prev = (struct coro *)cctx_ssl_cctx;
1082 ta->next = 0; 1463 ta->prev = 0;
1083} 1464}
1084 1465
1085static int 1466static int
1086slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1467slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1087{ 1468{
… …
1089 1470
1090 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1471 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1091} 1472}
1092 1473
1093/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1474/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1094static void NOINLINE 1475static void ecb_noinline
1095cctx_prepare (pTHX_ coro_cctx *cctx) 1476cctx_prepare (pTHX)
1096{ 1477{
1097 PL_top_env = &PL_start_env; 1478 PL_top_env = &PL_start_env;
1098 1479
1099 if (cctx->flags & CC_TRACE) 1480 if (cctx_current->flags & CC_TRACE)
1100 PL_runops = runops_trace; 1481 PL_runops = runops_trace;
1101 1482
1102 /* we already must be executing an SLF op, there is no other valid way 1483 /* we already must be executing an SLF op, there is no other valid way
1103 * that can lead to creation of a new cctx */ 1484 * that can lead to creation of a new cctx */
1104 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1485 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1105 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1486 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1106 1487
1107 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1488 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1108 cctx_ssl_cctx = cctx;
1109 cctx_ssl_frame = slf_frame; 1489 cctx_ssl_frame = slf_frame;
1110 1490
1111 slf_frame.prepare = slf_prepare_set_stacklevel; 1491 slf_frame.prepare = slf_prepare_set_stacklevel;
1112 slf_frame.check = slf_check_set_stacklevel; 1492 slf_frame.check = slf_check_set_stacklevel;
1113} 1493}
1114 1494
1115/* the tail of transfer: execute stuff we can only do after a transfer */ 1495/* the tail of transfer: execute stuff we can only do after a transfer */
1116INLINE void 1496ecb_inline void
1117transfer_tail (pTHX) 1497transfer_tail (pTHX)
1118{ 1498{
1119 free_coro_mortal (aTHX); 1499 free_coro_mortal (aTHX);
1500}
1501
1502/* try to exit the same way perl's main function would do */
1503/* we do not bother resetting the environment or other things *7
1504/* that are not, uhm, essential */
1505/* this obviously also doesn't work when perl is embedded */
1506static void ecb_noinline ecb_cold
1507perlish_exit (pTHX)
1508{
1509 int exitstatus = perl_destruct (PL_curinterp);
1510 perl_free (PL_curinterp);
1511 exit (exitstatus);
1120} 1512}
1121 1513
1122/* 1514/*
1123 * this is a _very_ stripped down perl interpreter ;) 1515 * this is a _very_ stripped down perl interpreter ;)
1124 */ 1516 */
… …
1136 /* normally we would need to skip the entersub here */ 1528 /* normally we would need to skip the entersub here */
1137 /* not doing so will re-execute it, which is exactly what we want */ 1529 /* not doing so will re-execute it, which is exactly what we want */
1138 /* PL_nop = PL_nop->op_next */ 1530 /* PL_nop = PL_nop->op_next */
1139 1531
1140 /* inject a fake subroutine call to cctx_init */ 1532 /* inject a fake subroutine call to cctx_init */
1141 cctx_prepare (aTHX_ (coro_cctx *)arg); 1533 cctx_prepare (aTHX);
1142 1534
1143 /* cctx_run is the alternative tail of transfer() */ 1535 /* cctx_run is the alternative tail of transfer() */
1144 transfer_tail (aTHX); 1536 transfer_tail (aTHX);
1145 1537
1146 /* somebody or something will hit me for both perl_run and PL_restartop */ 1538 /* somebody or something will hit me for both perl_run and PL_restartop */
1147 PL_restartop = PL_op; 1539 PL_restartop = PL_op;
1148 perl_run (PL_curinterp); 1540 perl_run (PL_curinterp);
1149 /* 1541 /*
1150 * Unfortunately, there is no way to get at the return values of the 1542 * Unfortunately, there is no way to get at the return values of the
1151 * coro body here, as perl_run destroys these 1543 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1544 * runtime errors here, as this is just a random interpreter, not a thread.
1152 */ 1545 */
1153 1546
1154 /* 1547 /*
1155 * If perl-run returns we assume exit() was being called or the coro 1548 * If perl-run returns we assume exit() was being called or the coro
1156 * fell off the end, which seems to be the only valid (non-bug) 1549 * fell off the end, which seems to be the only valid (non-bug)
1157 * reason for perl_run to return. We try to exit by jumping to the 1550 * reason for perl_run to return. We try to mimic whatever perl is normally
1158 * bootstrap-time "top" top_env, as we cannot restore the "main" 1551 * doing in that case. YMMV.
1159 * coroutine as Coro has no such concept
1160 */ 1552 */
1161 PL_top_env = main_top_env; 1553 perlish_exit (aTHX);
1162 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1163 } 1554 }
1164} 1555}
1165 1556
1166static coro_cctx * 1557static coro_cctx *
1167cctx_new () 1558cctx_new (void)
1168{ 1559{
1169 coro_cctx *cctx; 1560 coro_cctx *cctx;
1170 1561
1171 ++cctx_count; 1562 ++cctx_count;
1172 New (0, cctx, 1, coro_cctx); 1563 New (0, cctx, 1, coro_cctx);
… …
1178 return cctx; 1569 return cctx;
1179} 1570}
1180 1571
1181/* create a new cctx only suitable as source */ 1572/* create a new cctx only suitable as source */
1182static coro_cctx * 1573static coro_cctx *
1183cctx_new_empty () 1574cctx_new_empty (void)
1184{ 1575{
1185 coro_cctx *cctx = cctx_new (); 1576 coro_cctx *cctx = cctx_new ();
1186 1577
1187 cctx->sptr = 0; 1578 cctx->stack.sptr = 0;
1188 coro_create (&cctx->cctx, 0, 0, 0, 0); 1579 coro_create (&cctx->cctx, 0, 0, 0, 0);
1189 1580
1190 return cctx; 1581 return cctx;
1191} 1582}
1192 1583
1193/* create a new cctx suitable as destination/running a perl interpreter */ 1584/* create a new cctx suitable as destination/running a perl interpreter */
1194static coro_cctx * 1585static coro_cctx *
1195cctx_new_run () 1586cctx_new_run (void)
1196{ 1587{
1197 coro_cctx *cctx = cctx_new (); 1588 coro_cctx *cctx = cctx_new ();
1198 void *stack_start;
1199 size_t stack_size;
1200 1589
1201#if HAVE_MMAP 1590 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1202 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1203 /* mmap supposedly does allocate-on-write for us */
1204 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1205
1206 if (cctx->sptr != (void *)-1)
1207 {
1208 #if CORO_STACKGUARD
1209 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1210 #endif
1211 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1212 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1213 cctx->flags |= CC_MAPPED;
1214 } 1591 {
1215 else
1216#endif
1217 {
1218 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1219 New (0, cctx->sptr, cctx_stacksize, long);
1220
1221 if (!cctx->sptr)
1222 {
1223 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1592 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1224 _exit (EXIT_FAILURE); 1593 _exit (EXIT_FAILURE);
1225 }
1226
1227 stack_start = cctx->sptr;
1228 stack_size = cctx->ssize;
1229 } 1594 }
1230 1595
1231 #if CORO_USE_VALGRIND
1232 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1233 #endif
1234
1235 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1596 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1236 1597
1237 return cctx; 1598 return cctx;
1238} 1599}
1239 1600
1240static void 1601static void
1241cctx_destroy (coro_cctx *cctx) 1602cctx_destroy (coro_cctx *cctx)
1242{ 1603{
1243 if (!cctx) 1604 if (!cctx)
1244 return; 1605 return;
1245 1606
1607 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1608
1246 --cctx_count; 1609 --cctx_count;
1247 coro_destroy (&cctx->cctx); 1610 coro_destroy (&cctx->cctx);
1248 1611
1249 /* coro_transfer creates new, empty cctx's */ 1612 coro_stack_free (&cctx->stack);
1250 if (cctx->sptr)
1251 {
1252 #if CORO_USE_VALGRIND
1253 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1254 #endif
1255
1256#if HAVE_MMAP
1257 if (cctx->flags & CC_MAPPED)
1258 munmap (cctx->sptr, cctx->ssize);
1259 else
1260#endif
1261 Safefree (cctx->sptr);
1262 }
1263 1613
1264 Safefree (cctx); 1614 Safefree (cctx);
1265} 1615}
1266 1616
1267/* wether this cctx should be destructed */ 1617/* wether this cctx should be destructed */
1268#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1618#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1269 1619
1270static coro_cctx * 1620static coro_cctx *
1271cctx_get (pTHX) 1621cctx_get (pTHX)
1272{ 1622{
1273 while (expect_true (cctx_first)) 1623 while (ecb_expect_true (cctx_first))
1274 { 1624 {
1275 coro_cctx *cctx = cctx_first; 1625 coro_cctx *cctx = cctx_first;
1276 cctx_first = cctx->next; 1626 cctx_first = cctx->next;
1277 --cctx_idle; 1627 --cctx_idle;
1278 1628
1279 if (expect_true (!CCTX_EXPIRED (cctx))) 1629 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1280 return cctx; 1630 return cctx;
1281 1631
1282 cctx_destroy (cctx); 1632 cctx_destroy (cctx);
1283 } 1633 }
1284 1634
… …
1286} 1636}
1287 1637
1288static void 1638static void
1289cctx_put (coro_cctx *cctx) 1639cctx_put (coro_cctx *cctx)
1290{ 1640{
1291 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1641 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1292 1642
1293 /* free another cctx if overlimit */ 1643 /* free another cctx if overlimit */
1294 if (expect_false (cctx_idle >= cctx_max_idle)) 1644 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1295 { 1645 {
1296 coro_cctx *first = cctx_first; 1646 coro_cctx *first = cctx_first;
1297 cctx_first = first->next; 1647 cctx_first = first->next;
1298 --cctx_idle; 1648 --cctx_idle;
1299 1649
… …
1310static void 1660static void
1311transfer_check (pTHX_ struct coro *prev, struct coro *next) 1661transfer_check (pTHX_ struct coro *prev, struct coro *next)
1312{ 1662{
1313 /* TODO: throwing up here is considered harmful */ 1663 /* TODO: throwing up here is considered harmful */
1314 1664
1315 if (expect_true (prev != next)) 1665 if (ecb_expect_true (prev != next))
1316 { 1666 {
1317 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1667 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1318 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1668 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1319 1669
1320 if (expect_false (next->flags & CF_RUNNING)) 1670 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1321 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1322
1323 if (expect_false (next->flags & CF_DESTROYED))
1324 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1671 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1325 1672
1326#if !PERL_VERSION_ATLEAST (5,10,0) 1673#if !PERL_VERSION_ATLEAST (5,10,0)
1327 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1674 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1328 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1675 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1329#endif 1676#endif
1330 } 1677 }
1331} 1678}
1332 1679
1333/* always use the TRANSFER macro */ 1680/* always use the TRANSFER macro */
1334static void NOINLINE /* noinline so we have a fixed stackframe */ 1681static void ecb_noinline /* noinline so we have a fixed stackframe */
1335transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1682transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1336{ 1683{
1337 dSTACKLEVEL; 1684 dSTACKLEVEL;
1338 1685
1339 /* sometimes transfer is only called to set idle_sp */ 1686 /* sometimes transfer is only called to set idle_sp */
1340 if (expect_false (!next)) 1687 if (ecb_expect_false (!prev))
1341 { 1688 {
1342 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1689 cctx_current->idle_sp = STACKLEVEL;
1343 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1690 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1344 } 1691 }
1345 else if (expect_true (prev != next)) 1692 else if (ecb_expect_true (prev != next))
1346 { 1693 {
1347 coro_cctx *prev__cctx; 1694 coro_cctx *cctx_prev;
1348 1695
1349 if (expect_false (prev->flags & CF_NEW)) 1696 if (ecb_expect_false (prev->flags & CF_NEW))
1350 { 1697 {
1351 /* create a new empty/source context */ 1698 /* create a new empty/source context */
1352 prev->cctx = cctx_new_empty ();
1353 prev->flags &= ~CF_NEW; 1699 prev->flags &= ~CF_NEW;
1354 prev->flags |= CF_RUNNING; 1700 prev->flags |= CF_RUNNING;
1355 } 1701 }
1356 1702
1357 prev->flags &= ~CF_RUNNING; 1703 prev->flags &= ~CF_RUNNING;
1358 next->flags |= CF_RUNNING; 1704 next->flags |= CF_RUNNING;
1359 1705
1360 /* first get rid of the old state */ 1706 /* first get rid of the old state */
1361 save_perl (aTHX_ prev); 1707 save_perl (aTHX_ prev);
1362 1708
1363 if (expect_false (next->flags & CF_NEW)) 1709 if (ecb_expect_false (next->flags & CF_NEW))
1364 { 1710 {
1365 /* need to start coroutine */ 1711 /* need to start coroutine */
1366 next->flags &= ~CF_NEW; 1712 next->flags &= ~CF_NEW;
1367 /* setup coroutine call */ 1713 /* setup coroutine call */
1368 coro_setup (aTHX_ next); 1714 init_perl (aTHX_ next);
1369 } 1715 }
1370 else 1716 else
1371 load_perl (aTHX_ next); 1717 load_perl (aTHX_ next);
1372 1718
1373 prev__cctx = prev->cctx;
1374
1375 /* possibly untie and reuse the cctx */ 1719 /* possibly untie and reuse the cctx */
1376 if (expect_true ( 1720 if (ecb_expect_true (
1377 prev__cctx->idle_sp == STACKLEVEL 1721 cctx_current->idle_sp == STACKLEVEL
1378 && !(prev__cctx->flags & CC_TRACE) 1722 && !(cctx_current->flags & CC_TRACE)
1379 && !force_cctx 1723 && !force_cctx
1380 )) 1724 ))
1381 { 1725 {
1382 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1726 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1383 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1727 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1384 1728
1385 prev->cctx = 0;
1386
1387 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1729 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1388 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1730 /* without this the next cctx_get might destroy the running cctx while still in use */
1389 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1731 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1390 if (!next->cctx) 1732 if (ecb_expect_true (!next->cctx))
1391 next->cctx = cctx_get (aTHX); 1733 next->cctx = cctx_get (aTHX);
1392 1734
1393 cctx_put (prev__cctx); 1735 cctx_put (cctx_current);
1394 } 1736 }
1737 else
1738 prev->cctx = cctx_current;
1395 1739
1396 ++next->usecount; 1740 ++next->usecount;
1397 1741
1398 if (expect_true (!next->cctx)) 1742 cctx_prev = cctx_current;
1399 next->cctx = cctx_get (aTHX); 1743 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1400 1744
1401 if (expect_false (prev__cctx != next->cctx)) 1745 next->cctx = 0;
1746
1747 if (ecb_expect_false (cctx_prev != cctx_current))
1402 { 1748 {
1403 prev__cctx->top_env = PL_top_env; 1749 cctx_prev->top_env = PL_top_env;
1404 PL_top_env = next->cctx->top_env; 1750 PL_top_env = cctx_current->top_env;
1405 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1751 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1406 } 1752 }
1407 1753
1408 transfer_tail (aTHX); 1754 transfer_tail (aTHX);
1409 } 1755 }
1410} 1756}
… …
1412#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1758#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1413#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1759#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1414 1760
1415/** high level stuff ********************************************************/ 1761/** high level stuff ********************************************************/
1416 1762
1763/* this function is actually Coro, not Coro::State, but we call it from here */
1764/* because it is convenient - but it hasn't been declared yet for that reason */
1417static int 1765static void
1766coro_call_on_destroy (pTHX_ struct coro *coro);
1767
1768static void
1418coro_state_destroy (pTHX_ struct coro *coro) 1769coro_state_destroy (pTHX_ struct coro *coro)
1419{ 1770{
1420 if (coro->flags & CF_DESTROYED) 1771 if (coro->flags & CF_ZOMBIE)
1421 return 0; 1772 return;
1422 1773
1423 if (coro->on_destroy)
1424 coro->on_destroy (aTHX_ coro); 1774 slf_destroy (aTHX_ coro);
1425 1775
1426 coro->flags |= CF_DESTROYED; 1776 coro->flags |= CF_ZOMBIE;
1427 1777
1428 if (coro->flags & CF_READY) 1778 if (coro->flags & CF_READY)
1429 { 1779 {
1430 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1780 /* reduce nready, as destroying a ready coro effectively unreadies it */
1431 /* alternative: look through all ready queues and remove the coro */ 1781 /* alternative: look through all ready queues and remove the coro */
1432 --coro_nready; 1782 --coro_nready;
1433 } 1783 }
1434 else 1784 else
1435 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1785 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1436 1786
1437 if (coro->mainstack && coro->mainstack != main_mainstack) 1787 if (coro->next) coro->next->prev = coro->prev;
1438 { 1788 if (coro->prev) coro->prev->next = coro->next;
1439 struct coro temp; 1789 if (coro == coro_first) coro_first = coro->next;
1440 1790
1441 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1791 if (coro->mainstack
1442 1792 && coro->mainstack != main_mainstack
1443 save_perl (aTHX_ &temp); 1793 && coro->slot
1794 && !PL_dirty)
1444 load_perl (aTHX_ coro); 1795 destroy_perl (aTHX_ coro);
1445
1446 coro_destruct (aTHX_ coro);
1447
1448 load_perl (aTHX_ &temp);
1449
1450 coro->slot = 0;
1451 }
1452 1796
1453 cctx_destroy (coro->cctx); 1797 cctx_destroy (coro->cctx);
1454 SvREFCNT_dec (coro->startcv); 1798 SvREFCNT_dec (coro->startcv);
1455 SvREFCNT_dec (coro->args); 1799 SvREFCNT_dec (coro->args);
1800 SvREFCNT_dec (coro->swap_sv);
1456 SvREFCNT_dec (CORO_THROW); 1801 SvREFCNT_dec (CORO_THROW);
1457 1802
1458 if (coro->next) coro->next->prev = coro->prev; 1803 coro_call_on_destroy (aTHX_ coro);
1459 if (coro->prev) coro->prev->next = coro->next;
1460 if (coro == coro_first) coro_first = coro->next;
1461 1804
1462 return 1; 1805 /* more destruction mayhem in coro_state_free */
1463} 1806}
1464 1807
1465static int 1808static int
1466coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1809coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1467{ 1810{
1468 struct coro *coro = (struct coro *)mg->mg_ptr; 1811 struct coro *coro = (struct coro *)mg->mg_ptr;
1469 mg->mg_ptr = 0; 1812 mg->mg_ptr = 0;
1470 1813
1471 coro->hv = 0;
1472
1473 if (--coro->refcnt < 0)
1474 {
1475 coro_state_destroy (aTHX_ coro); 1814 coro_state_destroy (aTHX_ coro);
1815 SvREFCNT_dec (coro->on_destroy);
1816 SvREFCNT_dec (coro->status);
1817
1476 Safefree (coro); 1818 Safefree (coro);
1477 }
1478 1819
1479 return 0; 1820 return 0;
1480} 1821}
1481 1822
1482static int 1823static int ecb_cold
1483coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1824coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1484{ 1825{
1485 struct coro *coro = (struct coro *)mg->mg_ptr; 1826 /* called when perl clones the current process the slow way (windows process emulation) */
1486 1827 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1487 ++coro->refcnt; 1828 mg->mg_ptr = 0;
1829 mg->mg_virtual = 0;
1488 1830
1489 return 0; 1831 return 0;
1490} 1832}
1491 1833
1492static MGVTBL coro_state_vtbl = { 1834static MGVTBL coro_state_vtbl = {
… …
1515 1857
1516 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1858 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1517 TRANSFER (ta, 1); 1859 TRANSFER (ta, 1);
1518} 1860}
1519 1861
1520/*****************************************************************************/
1521/* gensub: simple closure generation utility */
1522
1523#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1524
1525/* create a closure from XS, returns a code reference */
1526/* the arg can be accessed via GENSUB_ARG from the callback */
1527/* the callback must use dXSARGS/XSRETURN */
1528static SV *
1529gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1530{
1531 CV *cv = (CV *)newSV (0);
1532
1533 sv_upgrade ((SV *)cv, SVt_PVCV);
1534
1535 CvANON_on (cv);
1536 CvISXSUB_on (cv);
1537 CvXSUB (cv) = xsub;
1538 GENSUB_ARG = arg;
1539
1540 return newRV_noinc ((SV *)cv);
1541}
1542
1543/** Coro ********************************************************************/ 1862/** Coro ********************************************************************/
1544 1863
1545INLINE void 1864ecb_inline void
1546coro_enq (pTHX_ struct coro *coro) 1865coro_enq (pTHX_ struct coro *coro)
1547{ 1866{
1548 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1867 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1549}
1550 1868
1551INLINE SV * 1869 SvREFCNT_inc_NN (coro->hv);
1870
1871 coro->next_ready = 0;
1872 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1873 ready [1] = coro;
1874}
1875
1876ecb_inline struct coro *
1552coro_deq (pTHX) 1877coro_deq (pTHX)
1553{ 1878{
1554 int prio; 1879 int prio;
1555 1880
1556 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1881 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1557 if (AvFILLp (coro_ready [prio]) >= 0) 1882 {
1558 return av_shift (coro_ready [prio]); 1883 struct coro **ready = coro_ready [prio];
1884
1885 if (ready [0])
1886 {
1887 struct coro *coro = ready [0];
1888 ready [0] = coro->next_ready;
1889 return coro;
1890 }
1891 }
1559 1892
1560 return 0; 1893 return 0;
1894}
1895
1896static void
1897invoke_sv_ready_hook_helper (void)
1898{
1899 dTHX;
1900 dSP;
1901
1902 ENTER;
1903 SAVETMPS;
1904
1905 PUSHMARK (SP);
1906 PUTBACK;
1907 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1908
1909 FREETMPS;
1910 LEAVE;
1561} 1911}
1562 1912
1563static int 1913static int
1564api_ready (pTHX_ SV *coro_sv) 1914api_ready (pTHX_ SV *coro_sv)
1565{ 1915{
1566 struct coro *coro;
1567 SV *sv_hook;
1568 void (*xs_hook)(void);
1569
1570 if (SvROK (coro_sv))
1571 coro_sv = SvRV (coro_sv);
1572
1573 coro = SvSTATE (coro_sv); 1916 struct coro *coro = SvSTATE (coro_sv);
1574 1917
1575 if (coro->flags & CF_READY) 1918 if (coro->flags & CF_READY)
1576 return 0; 1919 return 0;
1577 1920
1578 coro->flags |= CF_READY; 1921 coro->flags |= CF_READY;
1579 1922
1580 sv_hook = coro_nready ? 0 : coro_readyhook;
1581 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1582
1583 coro_enq (aTHX_ coro); 1923 coro_enq (aTHX_ coro);
1584 ++coro_nready;
1585 1924
1586 if (sv_hook) 1925 if (!coro_nready++)
1587 { 1926 if (coroapi.readyhook)
1588 dSP; 1927 coroapi.readyhook ();
1589
1590 ENTER;
1591 SAVETMPS;
1592
1593 PUSHMARK (SP);
1594 PUTBACK;
1595 call_sv (sv_hook, G_VOID | G_DISCARD);
1596
1597 FREETMPS;
1598 LEAVE;
1599 }
1600
1601 if (xs_hook)
1602 xs_hook ();
1603 1928
1604 return 1; 1929 return 1;
1605} 1930}
1606 1931
1607static int 1932static int
1608api_is_ready (pTHX_ SV *coro_sv) 1933api_is_ready (pTHX_ SV *coro_sv)
1609{ 1934{
1610 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1935 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1611} 1936}
1612 1937
1613INLINE void 1938/* expects to own a reference to next->hv */
1939ecb_inline void
1614prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1940prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1615{ 1941{
1616 SV *prev_sv, *next_sv;
1617
1618 for (;;)
1619 {
1620 next_sv = coro_deq (aTHX);
1621
1622 /* nothing to schedule: call the idle handler */
1623 if (expect_false (!next_sv))
1624 {
1625 dSP;
1626
1627 ENTER;
1628 SAVETMPS;
1629
1630 PUSHMARK (SP);
1631 PUTBACK;
1632 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1633
1634 FREETMPS;
1635 LEAVE;
1636 continue;
1637 }
1638
1639 ta->next = SvSTATE_hv (next_sv);
1640
1641 /* cannot transfer to destroyed coros, skip and look for next */
1642 if (expect_false (ta->next->flags & CF_DESTROYED))
1643 {
1644 SvREFCNT_dec (next_sv);
1645 /* coro_nready has already been taken care of by destroy */
1646 continue;
1647 }
1648
1649 --coro_nready;
1650 break;
1651 }
1652
1653 /* free this only after the transfer */
1654 prev_sv = SvRV (coro_current); 1942 SV *prev_sv = SvRV (coro_current);
1943
1655 ta->prev = SvSTATE_hv (prev_sv); 1944 ta->prev = SvSTATE_hv (prev_sv);
1945 ta->next = next;
1946
1656 TRANSFER_CHECK (*ta); 1947 TRANSFER_CHECK (*ta);
1657 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1948
1658 ta->next->flags &= ~CF_READY;
1659 SvRV_set (coro_current, next_sv); 1949 SvRV_set (coro_current, (SV *)next->hv);
1660 1950
1661 free_coro_mortal (aTHX); 1951 free_coro_mortal (aTHX);
1662 coro_mortal = prev_sv; 1952 coro_mortal = prev_sv;
1663} 1953}
1664 1954
1665INLINE void 1955static void
1956prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1957{
1958 for (;;)
1959 {
1960 struct coro *next = coro_deq (aTHX);
1961
1962 if (ecb_expect_true (next))
1963 {
1964 /* cannot transfer to destroyed coros, skip and look for next */
1965 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1966 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1967 else
1968 {
1969 next->flags &= ~CF_READY;
1970 --coro_nready;
1971
1972 prepare_schedule_to (aTHX_ ta, next);
1973 break;
1974 }
1975 }
1976 else
1977 {
1978 /* nothing to schedule: call the idle handler */
1979 if (SvROK (sv_idle)
1980 && SvOBJECT (SvRV (sv_idle)))
1981 {
1982 if (SvRV (sv_idle) == SvRV (coro_current))
1983 {
1984 require_pv ("Carp");
1985
1986 {
1987 dSP;
1988
1989 ENTER;
1990 SAVETMPS;
1991
1992 PUSHMARK (SP);
1993 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1994 PUTBACK;
1995 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1996
1997 FREETMPS;
1998 LEAVE;
1999 }
2000 }
2001
2002 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
2003 api_ready (aTHX_ SvRV (sv_idle));
2004 --coro_nready;
2005 }
2006 else
2007 {
2008 /* TODO: deprecated, remove, cannot work reliably *//*D*/
2009 dSP;
2010
2011 ENTER;
2012 SAVETMPS;
2013
2014 PUSHMARK (SP);
2015 PUTBACK;
2016 call_sv (sv_idle, G_VOID | G_DISCARD);
2017
2018 FREETMPS;
2019 LEAVE;
2020 }
2021 }
2022 }
2023}
2024
2025ecb_inline void
1666prepare_cede (pTHX_ struct coro_transfer_args *ta) 2026prepare_cede (pTHX_ struct coro_transfer_args *ta)
1667{ 2027{
1668 api_ready (aTHX_ coro_current); 2028 api_ready (aTHX_ coro_current);
1669 prepare_schedule (aTHX_ ta); 2029 prepare_schedule (aTHX_ ta);
1670} 2030}
1671 2031
1672INLINE void 2032ecb_inline void
1673prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2033prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1674{ 2034{
1675 SV *prev = SvRV (coro_current); 2035 SV *prev = SvRV (coro_current);
1676 2036
1677 if (coro_nready) 2037 if (coro_nready)
… …
1690 2050
1691 prepare_schedule (aTHX_ &ta); 2051 prepare_schedule (aTHX_ &ta);
1692 TRANSFER (ta, 1); 2052 TRANSFER (ta, 1);
1693} 2053}
1694 2054
2055static void
2056api_schedule_to (pTHX_ SV *coro_sv)
2057{
2058 struct coro_transfer_args ta;
2059 struct coro *next = SvSTATE (coro_sv);
2060
2061 SvREFCNT_inc_NN (coro_sv);
2062 prepare_schedule_to (aTHX_ &ta, next);
2063}
2064
1695static int 2065static int
1696api_cede (pTHX) 2066api_cede (pTHX)
1697{ 2067{
1698 struct coro_transfer_args ta; 2068 struct coro_transfer_args ta;
1699 2069
1700 prepare_cede (aTHX_ &ta); 2070 prepare_cede (aTHX_ &ta);
1701 2071
1702 if (expect_true (ta.prev != ta.next)) 2072 if (ecb_expect_true (ta.prev != ta.next))
1703 { 2073 {
1704 TRANSFER (ta, 1); 2074 TRANSFER (ta, 1);
1705 return 1; 2075 return 1;
1706 } 2076 }
1707 else 2077 else
… …
1726static void 2096static void
1727api_trace (pTHX_ SV *coro_sv, int flags) 2097api_trace (pTHX_ SV *coro_sv, int flags)
1728{ 2098{
1729 struct coro *coro = SvSTATE (coro_sv); 2099 struct coro *coro = SvSTATE (coro_sv);
1730 2100
2101 if (coro->flags & CF_RUNNING)
2102 croak ("cannot enable tracing on a running coroutine, caught");
2103
1731 if (flags & CC_TRACE) 2104 if (flags & CC_TRACE)
1732 { 2105 {
1733 if (!coro->cctx) 2106 if (!coro->cctx)
1734 coro->cctx = cctx_new_run (); 2107 coro->cctx = cctx_new_run ();
1735 else if (!(coro->cctx->flags & CC_TRACE)) 2108 else if (!(coro->cctx->flags & CC_TRACE))
1736 croak ("cannot enable tracing on coroutine with custom stack,"); 2109 croak ("cannot enable tracing on coroutine with custom stack, caught");
1737 2110
1738 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2111 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1739 } 2112 }
1740 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2113 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1741 { 2114 {
… …
1746 else 2119 else
1747 coro->slot->runops = RUNOPS_DEFAULT; 2120 coro->slot->runops = RUNOPS_DEFAULT;
1748 } 2121 }
1749} 2122}
1750 2123
2124static void
2125coro_push_av (pTHX_ AV *av, I32 gimme_v)
2126{
2127 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2128 {
2129 dSP;
2130
2131 if (gimme_v == G_SCALAR)
2132 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2133 else
2134 {
2135 int i;
2136 EXTEND (SP, AvFILLp (av) + 1);
2137
2138 for (i = 0; i <= AvFILLp (av); ++i)
2139 PUSHs (AvARRAY (av)[i]);
2140 }
2141
2142 PUTBACK;
2143 }
2144}
2145
2146static void
2147coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2148{
2149 if (!coro->on_destroy)
2150 coro->on_destroy = newAV ();
2151
2152 av_push (coro->on_destroy, cb);
2153}
2154
2155static void
2156slf_destroy_join (pTHX_ struct CoroSLF *frame)
2157{
2158 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2159}
2160
2161static int
2162slf_check_join (pTHX_ struct CoroSLF *frame)
2163{
2164 struct coro *coro = (struct coro *)frame->data;
2165
2166 if (!coro->status)
2167 return 1;
2168
2169 frame->destroy = 0;
2170
2171 coro_push_av (aTHX_ coro->status, GIMME_V);
2172
2173 SvREFCNT_dec ((SV *)coro->hv);
2174
2175 return 0;
2176}
2177
2178static void
2179slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2180{
2181 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2182
2183 if (items > 1)
2184 croak ("join called with too many arguments");
2185
2186 if (coro->status)
2187 frame->prepare = prepare_nop;
2188 else
2189 {
2190 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2191 frame->prepare = prepare_schedule;
2192 }
2193
2194 frame->check = slf_check_join;
2195 frame->destroy = slf_destroy_join;
2196 frame->data = (void *)coro;
2197 SvREFCNT_inc (coro->hv);
2198}
2199
2200static void
2201coro_call_on_destroy (pTHX_ struct coro *coro)
2202{
2203 AV *od = coro->on_destroy;
2204
2205 if (!od)
2206 return;
2207
2208 coro->on_destroy = 0;
2209 sv_2mortal ((SV *)od);
2210
2211 while (AvFILLp (od) >= 0)
2212 {
2213 SV *cb = sv_2mortal (av_pop (od));
2214
2215 /* coro hv's (and only hv's at the moment) are supported as well */
2216 if (SvSTATEhv_p (aTHX_ cb))
2217 api_ready (aTHX_ cb);
2218 else
2219 {
2220 dSP; /* don't disturb outer sp */
2221 PUSHMARK (SP);
2222
2223 if (coro->status)
2224 {
2225 PUTBACK;
2226 coro_push_av (aTHX_ coro->status, G_ARRAY);
2227 SPAGAIN;
2228 }
2229
2230 PUTBACK;
2231 call_sv (cb, G_VOID | G_DISCARD);
2232 }
2233 }
2234}
2235
2236static void
2237coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2238{
2239 AV *av;
2240
2241 if (coro->status)
2242 {
2243 av = coro->status;
2244 av_clear (av);
2245 }
2246 else
2247 av = coro->status = newAV ();
2248
2249 /* items are actually not so common, so optimise for this case */
2250 if (items)
2251 {
2252 int i;
2253
2254 av_extend (av, items - 1);
2255
2256 for (i = 0; i < items; ++i)
2257 av_push (av, SvREFCNT_inc_NN (arg [i]));
2258 }
2259}
2260
2261static void
2262slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2263{
2264 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2265 api_ready (aTHX_ sv_manager);
2266
2267 frame->prepare = prepare_schedule;
2268 frame->check = slf_check_repeat;
2269
2270 /* as a minor optimisation, we could unwind all stacks here */
2271 /* but that puts extra pressure on pp_slf, and is not worth much */
2272 /*coro_unwind_stacks (aTHX);*/
2273}
2274
2275static void
2276slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2277{
2278 HV *coro_hv = (HV *)SvRV (coro_current);
2279
2280 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2281 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2282}
2283
2284static void
2285slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2286{
2287 HV *coro_hv;
2288 struct coro *coro;
2289
2290 if (items <= 0)
2291 croak ("Coro::cancel called without coro object,");
2292
2293 coro = SvSTATE (arg [0]);
2294 coro_hv = coro->hv;
2295
2296 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2297
2298 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2299 {
2300 /* coro currently busy cancelling something, so just notify it */
2301 coro->slf_frame.data = (void *)coro;
2302
2303 frame->prepare = prepare_nop;
2304 frame->check = slf_check_nop;
2305 }
2306 else if (coro_hv == (HV *)SvRV (coro_current))
2307 {
2308 /* cancelling the current coro is allowed, and equals terminate */
2309 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2310 }
2311 else
2312 {
2313 struct coro *self = SvSTATE_current;
2314
2315 if (!self)
2316 croak ("Coro::cancel called outside of thread content,");
2317
2318 /* otherwise we cancel directly, purely for speed reasons
2319 * unfortunately, this requires some magic trickery, as
2320 * somebody else could cancel us, so we have to fight the cancellation.
2321 * this is ugly, and hopefully fully worth the extra speed.
2322 * besides, I can't get the slow-but-safe version working...
2323 */
2324 slf_frame.data = 0;
2325 self->flags |= CF_NOCANCEL;
2326 coro_state_destroy (aTHX_ coro);
2327 self->flags &= ~CF_NOCANCEL;
2328
2329 if (slf_frame.data)
2330 {
2331 /* while we were busy we have been cancelled, so terminate */
2332 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2333 }
2334 else
2335 {
2336 frame->prepare = prepare_nop;
2337 frame->check = slf_check_nop;
2338 }
2339 }
2340}
2341
2342static int
2343slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2344{
2345 frame->prepare = 0;
2346 coro_unwind_stacks (aTHX);
2347
2348 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2349
2350 return 1;
2351}
2352
2353static int
2354safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2355{
2356 if (coro->cctx)
2357 croak ("coro inside C callback, unable to cancel at this time, caught");
2358
2359 if (coro->flags & CF_NEW)
2360 {
2361 coro_set_status (aTHX_ coro, arg, items);
2362 coro_state_destroy (aTHX_ coro);
2363 }
2364 else
2365 {
2366 if (!coro->slf_frame.prepare)
2367 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2368
2369 slf_destroy (aTHX_ coro);
2370
2371 coro_set_status (aTHX_ coro, arg, items);
2372 coro->slf_frame.prepare = prepare_nop;
2373 coro->slf_frame.check = slf_check_safe_cancel;
2374
2375 api_ready (aTHX_ (SV *)coro->hv);
2376 }
2377
2378 return 1;
2379}
2380
2381/*****************************************************************************/
2382/* async pool handler */
2383
2384static int
2385slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2386{
2387 HV *hv = (HV *)SvRV (coro_current);
2388 struct coro *coro = (struct coro *)frame->data;
2389
2390 if (!coro->invoke_cb)
2391 return 1; /* loop till we have invoke */
2392 else
2393 {
2394 hv_store (hv, "desc", sizeof ("desc") - 1,
2395 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2396
2397 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2398
2399 {
2400 dSP;
2401 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2402 PUTBACK;
2403 }
2404
2405 SvREFCNT_dec (GvAV (PL_defgv));
2406 GvAV (PL_defgv) = coro->invoke_av;
2407 coro->invoke_av = 0;
2408
2409 return 0;
2410 }
2411}
2412
2413static void
2414slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2415{
2416 HV *hv = (HV *)SvRV (coro_current);
2417 struct coro *coro = SvSTATE_hv ((SV *)hv);
2418
2419 if (ecb_expect_true (coro->saved_deffh))
2420 {
2421 /* subsequent iteration */
2422 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2423 coro->saved_deffh = 0;
2424
2425 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2426 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2427 {
2428 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2429 return;
2430 }
2431 else
2432 {
2433 av_clear (GvAV (PL_defgv));
2434 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2435
2436 if (ecb_expect_false (coro->swap_sv))
2437 {
2438 swap_svs_leave (coro);
2439 SvREFCNT_dec_NN (coro->swap_sv);
2440 coro->swap_sv = 0;
2441 }
2442
2443 coro->prio = 0;
2444
2445 if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE))
2446 api_trace (aTHX_ coro_current, 0);
2447
2448 frame->prepare = prepare_schedule;
2449 av_push (av_async_pool, SvREFCNT_inc (hv));
2450 }
2451 }
2452 else
2453 {
2454 /* first iteration, simply fall through */
2455 frame->prepare = prepare_nop;
2456 }
2457
2458 frame->check = slf_check_pool_handler;
2459 frame->data = (void *)coro;
2460}
2461
1751/*****************************************************************************/ 2462/*****************************************************************************/
1752/* rouse callback */ 2463/* rouse callback */
1753 2464
1754#define CORO_MAGIC_type_rouse PERL_MAGIC_ext 2465#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1755 2466
1756static void 2467static void
1757coro_rouse_callback (pTHX_ CV *cv) 2468coro_rouse_callback (pTHX_ CV *cv)
1758{ 2469{
1759 dXSARGS; 2470 dXSARGS;
1760 SV *data = (SV *)GENSUB_ARG; 2471 SV *data = (SV *)S_GENSUB_ARG;
1761 2472
1762 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2473 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1763 { 2474 {
1764 /* first call, set args */ 2475 /* first call, set args */
1765 int i; 2476 SV *coro = SvRV (data);
1766 AV *av = newAV (); 2477 AV *av = newAV ();
1767 SV *coro = SvRV (data);
1768 2478
1769 SvRV_set (data, (SV *)av); 2479 SvRV_set (data, (SV *)av);
1770 api_ready (aTHX_ coro);
1771 SvREFCNT_dec (coro);
1772 2480
1773 /* better take a full copy of the arguments */ 2481 /* better take a full copy of the arguments */
1774 while (items--) 2482 while (items--)
1775 av_store (av, items, newSVsv (ST (items))); 2483 av_store (av, items, newSVsv (ST (items)));
2484
2485 api_ready (aTHX_ coro);
2486 SvREFCNT_dec (coro);
1776 } 2487 }
1777 2488
1778 XSRETURN_EMPTY; 2489 XSRETURN_EMPTY;
1779} 2490}
1780 2491
1781static int 2492static int
1782slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2493slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1783{ 2494{
1784 SV *data = (SV *)frame->data; 2495 SV *data = (SV *)frame->data;
1785 2496
1786 if (CORO_THROW) 2497 if (CORO_THROW)
1787 return 0; 2498 return 0;
1788 2499
1789 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2500 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1790 return 1; 2501 return 1;
… …
1797 2508
1798 EXTEND (SP, AvFILLp (av) + 1); 2509 EXTEND (SP, AvFILLp (av) + 1);
1799 for (i = 0; i <= AvFILLp (av); ++i) 2510 for (i = 0; i <= AvFILLp (av); ++i)
1800 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2511 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1801 2512
1802 /* we have stolen the elements, so ste length to zero and free */ 2513 /* we have stolen the elements, so set length to zero and free */
1803 AvFILLp (av) = -1; 2514 AvFILLp (av) = -1;
1804 av_undef (av); 2515 av_undef (av);
1805 2516
1806 PUTBACK; 2517 PUTBACK;
1807 } 2518 }
… …
1826 cb = sv_2mortal (coro->rouse_cb); 2537 cb = sv_2mortal (coro->rouse_cb);
1827 coro->rouse_cb = 0; 2538 coro->rouse_cb = 0;
1828 } 2539 }
1829 2540
1830 if (!SvROK (cb) 2541 if (!SvROK (cb)
1831 || SvTYPE (SvRV (cb)) != SVt_PVCV 2542 || SvTYPE (SvRV (cb)) != SVt_PVCV
1832 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2543 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1833 croak ("Coro::rouse_wait called with illegal callback argument,"); 2544 croak ("Coro::rouse_wait called with illegal callback argument,");
1834 2545
1835 { 2546 {
1836 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2547 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1837 SV *data = (SV *)GENSUB_ARG; 2548 SV *data = (SV *)S_GENSUB_ARG;
1838 2549
1839 frame->data = (void *)data; 2550 frame->data = (void *)data;
1840 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2551 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1841 frame->check = slf_check_rouse_wait; 2552 frame->check = slf_check_rouse_wait;
1842 } 2553 }
… …
1846coro_new_rouse_cb (pTHX) 2557coro_new_rouse_cb (pTHX)
1847{ 2558{
1848 HV *hv = (HV *)SvRV (coro_current); 2559 HV *hv = (HV *)SvRV (coro_current);
1849 struct coro *coro = SvSTATE_hv (hv); 2560 struct coro *coro = SvSTATE_hv (hv);
1850 SV *data = newRV_inc ((SV *)hv); 2561 SV *data = newRV_inc ((SV *)hv);
1851 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2562 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1852 2563
1853 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2564 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1854 SvREFCNT_dec (data); /* magicext increases the refcount */ 2565 SvREFCNT_dec (data); /* magicext increases the refcount */
1855 2566
1856 SvREFCNT_dec (coro->rouse_cb); 2567 SvREFCNT_dec (coro->rouse_cb);
… …
1914 frame->prepare = prepare_schedule; 2625 frame->prepare = prepare_schedule;
1915 frame->check = slf_check_nop; 2626 frame->check = slf_check_nop;
1916} 2627}
1917 2628
1918static void 2629static void
2630slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2631{
2632 struct coro *next = (struct coro *)slf_frame.data;
2633
2634 SvREFCNT_inc_NN (next->hv);
2635 prepare_schedule_to (aTHX_ ta, next);
2636}
2637
2638static void
2639slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2640{
2641 if (!items)
2642 croak ("Coro::schedule_to expects a coroutine argument, caught");
2643
2644 frame->data = (void *)SvSTATE (arg [0]);
2645 frame->prepare = slf_prepare_schedule_to;
2646 frame->check = slf_check_nop;
2647}
2648
2649static void
2650slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2651{
2652 api_ready (aTHX_ SvRV (coro_current));
2653
2654 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2655}
2656
2657static void
1919slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2658slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1920{ 2659{
1921 frame->prepare = prepare_cede; 2660 frame->prepare = prepare_cede;
1922 frame->check = slf_check_nop; 2661 frame->check = slf_check_nop;
1923} 2662}
… …
1925static void 2664static void
1926slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2665slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1927{ 2666{
1928 frame->prepare = prepare_cede_notself; 2667 frame->prepare = prepare_cede_notself;
1929 frame->check = slf_check_nop; 2668 frame->check = slf_check_nop;
2669}
2670
2671/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2672static void
2673slf_destroy (pTHX_ struct coro *coro)
2674{
2675 struct CoroSLF frame = coro->slf_frame;
2676
2677 /*
2678 * The on_destroy below most likely is from an SLF call.
2679 * Since by definition the SLF call will not finish when we destroy
2680 * the coro, we will have to force-finish it here, otherwise
2681 * cleanup functions cannot call SLF functions.
2682 */
2683 coro->slf_frame.prepare = 0;
2684
2685 /* this callback is reserved for slf functions needing to do cleanup */
2686 if (frame.destroy && frame.prepare && !PL_dirty)
2687 frame.destroy (aTHX_ &frame);
1930} 2688}
1931 2689
1932/* 2690/*
1933 * these not obviously related functions are all rolled into one 2691 * these not obviously related functions are all rolled into one
1934 * function to increase chances that they all will call transfer with the same 2692 * function to increase chances that they all will call transfer with the same
… …
1941 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2699 I32 checkmark; /* mark SP to see how many elements check has pushed */
1942 2700
1943 /* set up the slf frame, unless it has already been set-up */ 2701 /* set up the slf frame, unless it has already been set-up */
1944 /* the latter happens when a new coro has been started */ 2702 /* the latter happens when a new coro has been started */
1945 /* or when a new cctx was attached to an existing coroutine */ 2703 /* or when a new cctx was attached to an existing coroutine */
1946 if (expect_true (!slf_frame.prepare)) 2704 if (ecb_expect_true (!slf_frame.prepare))
1947 { 2705 {
1948 /* first iteration */ 2706 /* first iteration */
1949 dSP; 2707 dSP;
1950 SV **arg = PL_stack_base + TOPMARK + 1; 2708 SV **arg = PL_stack_base + TOPMARK + 1;
1951 int items = SP - arg; /* args without function object */ 2709 int items = SP - arg; /* args without function object */
… …
1992 while (slf_frame.check (aTHX_ &slf_frame)); 2750 while (slf_frame.check (aTHX_ &slf_frame));
1993 2751
1994 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2752 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1995 2753
1996 /* exception handling */ 2754 /* exception handling */
1997 if (expect_false (CORO_THROW)) 2755 if (ecb_expect_false (CORO_THROW))
1998 { 2756 {
1999 SV *exception = sv_2mortal (CORO_THROW); 2757 SV *exception = sv_2mortal (CORO_THROW);
2000 2758
2001 CORO_THROW = 0; 2759 CORO_THROW = 0;
2002 sv_setsv (ERRSV, exception); 2760 sv_setsv (ERRSV, exception);
2003 croak (0); 2761 croak (0);
2004 } 2762 }
2005 2763
2006 /* return value handling - mostly like entersub */ 2764 /* return value handling - mostly like entersub */
2007 /* make sure we put something on the stack in scalar context */ 2765 /* make sure we put something on the stack in scalar context */
2008 if (GIMME_V == G_SCALAR) 2766 if (GIMME_V == G_SCALAR
2767 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2009 { 2768 {
2010 dSP; 2769 dSP;
2011 SV **bot = PL_stack_base + checkmark; 2770 SV **bot = PL_stack_base + checkmark;
2012 2771
2013 if (sp == bot) /* too few, push undef */ 2772 if (sp == bot) /* too few, push undef */
2014 bot [1] = &PL_sv_undef; 2773 bot [1] = &PL_sv_undef;
2015 else if (sp != bot + 1) /* too many, take last one */ 2774 else /* too many, take last one */
2016 bot [1] = *sp; 2775 bot [1] = *sp;
2017 2776
2018 SP = bot + 1; 2777 SP = bot + 1;
2019 2778
2020 PUTBACK; 2779 PUTBACK;
… …
2053 if (PL_op->op_flags & OPf_STACKED) 2812 if (PL_op->op_flags & OPf_STACKED)
2054 { 2813 {
2055 if (items > slf_arga) 2814 if (items > slf_arga)
2056 { 2815 {
2057 slf_arga = items; 2816 slf_arga = items;
2058 free (slf_argv); 2817 Safefree (slf_argv);
2059 slf_argv = malloc (slf_arga * sizeof (SV *)); 2818 New (0, slf_argv, slf_arga, SV *);
2060 } 2819 }
2061 2820
2062 slf_argc = items; 2821 slf_argc = items;
2063 2822
2064 for (i = 0; i < items; ++i) 2823 for (i = 0; i < items; ++i)
… …
2066 } 2825 }
2067 else 2826 else
2068 slf_argc = 0; 2827 slf_argc = 0;
2069 2828
2070 PL_op->op_ppaddr = pp_slf; 2829 PL_op->op_ppaddr = pp_slf;
2071 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2830 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2072 2831
2073 PL_op = (OP *)&slf_restore; 2832 PL_op = (OP *)&slf_restore;
2833}
2834
2835/*****************************************************************************/
2836/* dynamic wind */
2837
2838static void
2839on_enterleave_call (pTHX_ SV *cb)
2840{
2841 dSP;
2842
2843 PUSHSTACK;
2844
2845 PUSHMARK (SP);
2846 PUTBACK;
2847 call_sv (cb, G_VOID | G_DISCARD);
2848 SPAGAIN;
2849
2850 POPSTACK;
2851}
2852
2853static SV *
2854coro_avp_pop_and_free (pTHX_ AV **avp)
2855{
2856 AV *av = *avp;
2857 SV *res = av_pop (av);
2858
2859 if (AvFILLp (av) < 0)
2860 {
2861 *avp = 0;
2862 SvREFCNT_dec (av);
2863 }
2864
2865 return res;
2866}
2867
2868static void
2869coro_pop_on_enter (pTHX_ void *coro)
2870{
2871 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2872 SvREFCNT_dec (cb);
2873}
2874
2875static void
2876coro_pop_on_leave (pTHX_ void *coro)
2877{
2878 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2879 on_enterleave_call (aTHX_ sv_2mortal (cb));
2880}
2881
2882static void
2883enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
2884{
2885 if (!hook)
2886 return;
2887
2888 if (!*avp)
2889 {
2890 *avp = newAV ();
2891 AvREAL_off (*avp);
2892 }
2893
2894 av_push (*avp, (SV *)hook);
2895 av_push (*avp, (SV *)arg);
2896}
2897
2898static void
2899enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
2900{
2901 AV *av = *avp;
2902 int i;
2903
2904 if (!av)
2905 return;
2906
2907 for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
2908 if (AvARRAY (av)[i] == (SV *)hook)
2909 {
2910 if (execute)
2911 hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
2912
2913 memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
2914 av_pop (av);
2915 av_pop (av);
2916 break;
2917 }
2918
2919 if (AvFILLp (av) >= 0)
2920 {
2921 *avp = 0;
2922 SvREFCNT_dec_NN (av);
2923 }
2924}
2925
2926static void
2927api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2928{
2929 struct coro *coro = SvSTATE (coro_sv);
2930
2931 if (SvSTATE_current == coro)
2932 if (enter)
2933 enter (aTHX_ enter_arg);
2934
2935 enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
2936 enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
2937}
2938
2939static void
2940api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
2941{
2942 struct coro *coro = SvSTATE (coro_sv);
2943
2944 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2945 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
2946}
2947
2948static void
2949savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
2950{
2951 struct coro *coro = SvSTATE_current;
2952
2953 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2954}
2955
2956static void
2957savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
2958{
2959 struct coro *coro = SvSTATE_current;
2960
2961 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
2962}
2963
2964static void
2965api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2966{
2967 api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
2968
2969 /* this ought to be much cheaper than malloc + a single destructor call */
2970 if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
2971 if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2074} 2972}
2075 2973
2076/*****************************************************************************/ 2974/*****************************************************************************/
2077/* PerlIO::cede */ 2975/* PerlIO::cede */
2078 2976
… …
2080{ 2978{
2081 PerlIOBuf base; 2979 PerlIOBuf base;
2082 NV next, every; 2980 NV next, every;
2083} PerlIOCede; 2981} PerlIOCede;
2084 2982
2085static IV 2983static IV ecb_cold
2086PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2984PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2087{ 2985{
2088 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2986 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2089 2987
2090 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2988 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2091 self->next = nvtime () + self->every; 2989 self->next = nvtime () + self->every;
2092 2990
2093 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2991 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2094} 2992}
2095 2993
2096static SV * 2994static SV * ecb_cold
2097PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2995PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2098{ 2996{
2099 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2997 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2100 2998
2101 return newSVnv (self->every); 2999 return newSVnv (self->every);
… …
2152/* Coro::Semaphore & Coro::Signal */ 3050/* Coro::Semaphore & Coro::Signal */
2153 3051
2154static SV * 3052static SV *
2155coro_waitarray_new (pTHX_ int count) 3053coro_waitarray_new (pTHX_ int count)
2156{ 3054{
2157 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3055 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2158 AV *av = newAV (); 3056 AV *av = newAV ();
2159 SV **ary; 3057 SV **ary;
2160 3058
2161 /* unfortunately, building manually saves memory */ 3059 /* unfortunately, building manually saves memory */
2162 Newx (ary, 2, SV *); 3060 Newx (ary, 2, SV *);
2163 AvALLOC (av) = ary; 3061 AvALLOC (av) = ary;
3062#if PERL_VERSION_ATLEAST (5,10,0)
2164 /*AvARRAY (av) = ary;*/ 3063 AvARRAY (av) = ary;
3064#else
2165 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 3065 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
3066 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
3067 SvPVX ((SV *)av) = (char *)ary;
3068#endif
2166 AvMAX (av) = 1; 3069 AvMAX (av) = 1;
2167 AvFILLp (av) = 0; 3070 AvFILLp (av) = 0;
2168 ary [0] = newSViv (count); 3071 ary [0] = newSViv (count);
2169 3072
2170 return newRV_noinc ((SV *)av); 3073 return newRV_noinc ((SV *)av);
… …
2203 XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); 3106 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2204 PUTBACK; 3107 PUTBACK;
2205 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); 3108 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2206 } 3109 }
2207 3110
2208 SvREFCNT_dec (cb); 3111 SvREFCNT_dec_NN (cb);
2209 } 3112 }
2210} 3113}
2211 3114
2212static void 3115static void
2213coro_semaphore_on_destroy (pTHX_ struct coro *coro) 3116coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2214{ 3117{
2215 /* call $sem->adjust (0) to possibly wake up some other waiters */ 3118 /* call $sem->adjust (0) to possibly wake up some other waiters */
2216 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 3119 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2217} 3120}
2218 3121
2219static int 3122static int
2220slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 3123slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2221{ 3124{
2222 AV *av = (AV *)frame->data; 3125 AV *av = (AV *)frame->data;
2223 SV *count_sv = AvARRAY (av)[0]; 3126 SV *count_sv = AvARRAY (av)[0];
3127 SV *coro_hv = SvRV (coro_current);
3128
3129 frame->destroy = 0;
2224 3130
2225 /* if we are about to throw, don't actually acquire the lock, just throw */ 3131 /* if we are about to throw, don't actually acquire the lock, just throw */
2226 if (CORO_THROW) 3132 if (ecb_expect_false (CORO_THROW))
3133 {
3134 /* we still might be responsible for the semaphore, so wake up others */
3135 coro_semaphore_adjust (aTHX_ av, 0);
3136
2227 return 0; 3137 return 0;
3138 }
2228 else if (SvIVX (count_sv) > 0) 3139 else if (SvIVX (count_sv) > 0)
2229 { 3140 {
2230 SvSTATE_current->on_destroy = 0;
2231
2232 if (acquire) 3141 if (acquire)
2233 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3142 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2234 else 3143 else
2235 coro_semaphore_adjust (aTHX_ av, 0); 3144 coro_semaphore_adjust (aTHX_ av, 0);
2236 3145
… …
2240 { 3149 {
2241 int i; 3150 int i;
2242 /* if we were woken up but can't down, we look through the whole */ 3151 /* if we were woken up but can't down, we look through the whole */
2243 /* waiters list and only add us if we aren't in there already */ 3152 /* waiters list and only add us if we aren't in there already */
2244 /* this avoids some degenerate memory usage cases */ 3153 /* this avoids some degenerate memory usage cases */
2245 3154 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2246 for (i = 1; i <= AvFILLp (av); ++i)
2247 if (AvARRAY (av)[i] == SvRV (coro_current)) 3155 if (AvARRAY (av)[i] == coro_hv)
2248 return 1; 3156 return 1;
2249 3157
2250 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3158 av_push (av, SvREFCNT_inc (coro_hv));
2251 return 1; 3159 return 1;
2252 } 3160 }
2253} 3161}
2254 3162
2255static int 3163static int
… …
2278 { 3186 {
2279 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3187 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2280 3188
2281 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3189 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2282 frame->prepare = prepare_schedule; 3190 frame->prepare = prepare_schedule;
2283
2284 /* to avoid race conditions when a woken-up coro gets terminated */ 3191 /* to avoid race conditions when a woken-up coro gets terminated */
2285 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3192 /* we arrange for a temporary on_destroy that calls adjust (0) */
2286 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3193 frame->destroy = coro_semaphore_destroy;
2287 } 3194 }
2288} 3195}
2289 3196
2290static void 3197static void
2291slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3198slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2299{ 3206{
2300 if (items >= 2) 3207 if (items >= 2)
2301 { 3208 {
2302 /* callback form */ 3209 /* callback form */
2303 AV *av = (AV *)SvRV (arg [0]); 3210 AV *av = (AV *)SvRV (arg [0]);
2304 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3211 SV *cb_cv = s_get_cv_croak (arg [1]);
2305 3212
2306 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3213 av_push (av, SvREFCNT_inc_NN (cb_cv));
2307 3214
2308 if (SvIVX (AvARRAY (av)[0]) > 0) 3215 if (SvIVX (AvARRAY (av)[0]) > 0)
2309 coro_semaphore_adjust (aTHX_ av, 0); 3216 coro_semaphore_adjust (aTHX_ av, 0);
2310 3217
2311 frame->prepare = prepare_nop; 3218 frame->prepare = prepare_nop;
… …
2335 AvARRAY (av)[0] = AvARRAY (av)[1]; 3242 AvARRAY (av)[0] = AvARRAY (av)[1];
2336 AvARRAY (av)[1] = cb; 3243 AvARRAY (av)[1] = cb;
2337 3244
2338 cb = av_shift (av); 3245 cb = av_shift (av);
2339 3246
3247 if (SvTYPE (cb) == SVt_PVCV)
3248 {
3249 dSP;
3250 PUSHMARK (SP);
3251 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3252 PUTBACK;
3253 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3254 }
3255 else
3256 {
2340 api_ready (aTHX_ cb); 3257 api_ready (aTHX_ cb);
2341 sv_setiv (cb, 0); /* signal waiter */ 3258 sv_setiv (cb, 0); /* signal waiter */
3259 }
3260
2342 SvREFCNT_dec (cb); 3261 SvREFCNT_dec_NN (cb);
2343 3262
2344 --count; 3263 --count;
2345 } 3264 }
2346} 3265}
2347 3266
… …
2355static void 3274static void
2356slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3275slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2357{ 3276{
2358 AV *av = (AV *)SvRV (arg [0]); 3277 AV *av = (AV *)SvRV (arg [0]);
2359 3278
3279 if (items >= 2)
3280 {
3281 SV *cb_cv = s_get_cv_croak (arg [1]);
3282 av_push (av, SvREFCNT_inc_NN (cb_cv));
3283
2360 if (SvIVX (AvARRAY (av)[0])) 3284 if (SvIVX (AvARRAY (av)[0]))
3285 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3286
3287 frame->prepare = prepare_nop;
3288 frame->check = slf_check_nop;
3289 }
3290 else if (SvIVX (AvARRAY (av)[0]))
2361 { 3291 {
2362 SvIVX (AvARRAY (av)[0]) = 0; 3292 SvIVX (AvARRAY (av)[0]) = 0;
2363 frame->prepare = prepare_nop; 3293 frame->prepare = prepare_nop;
2364 frame->check = slf_check_nop; 3294 frame->check = slf_check_nop;
2365 } 3295 }
2366 else 3296 else
2367 { 3297 {
2368 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3298 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2369 3299
2370 av_push (av, waiter); 3300 av_push (av, waiter);
2371 3301
2372 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3302 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2373 frame->prepare = prepare_schedule; 3303 frame->prepare = prepare_schedule;
… …
2391 3321
2392static void 3322static void
2393coro_aio_callback (pTHX_ CV *cv) 3323coro_aio_callback (pTHX_ CV *cv)
2394{ 3324{
2395 dXSARGS; 3325 dXSARGS;
2396 AV *state = (AV *)GENSUB_ARG; 3326 AV *state = (AV *)S_GENSUB_ARG;
2397 SV *coro = av_pop (state); 3327 SV *coro = av_pop (state);
2398 SV *data_sv = newSV (sizeof (struct io_state)); 3328 SV *data_sv = newSV (sizeof (struct io_state));
2399 3329
2400 av_extend (state, items); 3330 av_extend (state, items - 1);
2401 3331
2402 sv_upgrade (data_sv, SVt_PV); 3332 sv_upgrade (data_sv, SVt_PV);
2403 SvCUR_set (data_sv, sizeof (struct io_state)); 3333 SvCUR_set (data_sv, sizeof (struct io_state));
2404 SvPOK_only (data_sv); 3334 SvPOK_only (data_sv);
2405 3335
… …
2421 } 3351 }
2422 3352
2423 av_push (state, data_sv); 3353 av_push (state, data_sv);
2424 3354
2425 api_ready (aTHX_ coro); 3355 api_ready (aTHX_ coro);
2426 SvREFCNT_dec (coro); 3356 SvREFCNT_dec_NN (coro);
2427 SvREFCNT_dec ((AV *)state); 3357 SvREFCNT_dec_NN ((AV *)state);
2428} 3358}
2429 3359
2430static int 3360static int
2431slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3361slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2432{ 3362{
… …
2437 /* it quickly returns */ 3367 /* it quickly returns */
2438 if (CORO_THROW) 3368 if (CORO_THROW)
2439 return 0; 3369 return 0;
2440 3370
2441 /* one element that is an RV? repeat! */ 3371 /* one element that is an RV? repeat! */
2442 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3372 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2443 return 1; 3373 return 1;
2444 3374
2445 /* restore status */ 3375 /* restore status */
2446 { 3376 {
2447 SV *data_sv = av_pop (state); 3377 SV *data_sv = av_pop (state);
… …
2450 errno = data->errorno; 3380 errno = data->errorno;
2451 PL_laststype = data->laststype; 3381 PL_laststype = data->laststype;
2452 PL_laststatval = data->laststatval; 3382 PL_laststatval = data->laststatval;
2453 PL_statcache = data->statcache; 3383 PL_statcache = data->statcache;
2454 3384
2455 SvREFCNT_dec (data_sv); 3385 SvREFCNT_dec_NN (data_sv);
2456 } 3386 }
2457 3387
2458 /* push result values */ 3388 /* push result values */
2459 { 3389 {
2460 dSP; 3390 dSP;
… …
2486 dSP; 3416 dSP;
2487 3417
2488 static SV *prio_cv; 3418 static SV *prio_cv;
2489 static SV *prio_sv; 3419 static SV *prio_sv;
2490 3420
2491 if (expect_false (!prio_cv)) 3421 if (ecb_expect_false (!prio_cv))
2492 { 3422 {
2493 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3423 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2494 prio_sv = newSViv (0); 3424 prio_sv = newSViv (0);
2495 } 3425 }
2496 3426
… …
2515 3445
2516 for (i = 0; i < items; ++i) 3446 for (i = 0; i < items; ++i)
2517 PUSHs (arg [i]); 3447 PUSHs (arg [i]);
2518 3448
2519 /* now push the callback closure */ 3449 /* now push the callback closure */
2520 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3450 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2521 3451
2522 /* now call the AIO function - we assume our request is uncancelable */ 3452 /* now call the AIO function - we assume our request is uncancelable */
2523 PUTBACK; 3453 PUTBACK;
2524 call_sv ((SV *)req, G_VOID | G_DISCARD); 3454 call_sv ((SV *)req, G_VOID | G_DISCARD);
2525 } 3455 }
2526 3456
2527 /* now that the requets is going, we loop toll we have a result */ 3457 /* now that the request is going, we loop till we have a result */
2528 frame->data = (void *)state; 3458 frame->data = (void *)state;
2529 frame->prepare = prepare_schedule; 3459 frame->prepare = prepare_schedule;
2530 frame->check = slf_check_aio_req; 3460 frame->check = slf_check_aio_req;
2531} 3461}
2532 3462
… …
2540 XSRETURN_EMPTY; 3470 XSRETURN_EMPTY;
2541} 3471}
2542 3472
2543/*****************************************************************************/ 3473/*****************************************************************************/
2544 3474
3475#if CORO_CLONE
3476# include "clone.c"
3477#endif
3478
3479/*****************************************************************************/
3480
3481static SV *
3482coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3483{
3484 SV *coro_sv;
3485 struct coro *coro;
3486 MAGIC *mg;
3487 HV *hv;
3488 SV *cb;
3489 int i;
3490
3491 if (argc > 0)
3492 {
3493 cb = s_get_cv_croak (argv [0]);
3494
3495 if (!is_coro)
3496 {
3497 if (CvISXSUB (cb))
3498 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3499
3500 if (!CvROOT (cb))
3501 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3502 }
3503 }
3504
3505 Newz (0, coro, 1, struct coro);
3506 coro->args = newAV ();
3507 coro->flags = CF_NEW;
3508
3509 if (coro_first) coro_first->prev = coro;
3510 coro->next = coro_first;
3511 coro_first = coro;
3512
3513 coro->hv = hv = newHV ();
3514 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3515 mg->mg_flags |= MGf_DUP;
3516 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3517
3518 if (argc > 0)
3519 {
3520 av_extend (coro->args, argc + is_coro - 1);
3521
3522 if (is_coro)
3523 {
3524 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3525 cb = (SV *)cv_coro_run;
3526 }
3527
3528 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3529
3530 for (i = 1; i < argc; i++)
3531 av_push (coro->args, newSVsv (argv [i]));
3532 }
3533
3534 return coro_sv;
3535}
3536
3537#ifndef __cplusplus
3538ecb_cold XS(boot_Coro__State);
3539#endif
3540
3541#if CORO_JIT
3542
3543static void ecb_noinline ecb_cold
3544pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3545{
3546 dSP;
3547 AV *av = newAV ();
3548
3549 av_store (av, 3, newSVuv (d));
3550 av_store (av, 2, newSVuv (c));
3551 av_store (av, 1, newSVuv (b));
3552 av_store (av, 0, newSVuv (a));
3553
3554 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3555
3556 PUTBACK;
3557}
3558
3559static void ecb_noinline ecb_cold
3560jit_init (pTHX)
3561{
3562 dSP;
3563 SV *load, *save;
3564 char *map_base;
3565 char *load_ptr, *save_ptr;
3566 STRLEN load_len, save_len, map_len;
3567 int count;
3568
3569 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3570
3571 PUSHMARK (SP);
3572 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3573 #include "state.h"
3574 count = call_pv ("Coro::State::_jit", G_ARRAY);
3575 SPAGAIN;
3576
3577 save = POPs; save_ptr = SvPVbyte (save, save_len);
3578 load = POPs; load_ptr = SvPVbyte (load, load_len);
3579
3580 map_len = load_len + save_len + 16;
3581
3582 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3583
3584 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3585
3586 load_perl_slots = (load_save_perl_slots_type)map_base;
3587 memcpy (map_base, load_ptr, load_len);
3588
3589 map_base += (load_len + 15) & ~15;
3590
3591 save_perl_slots = (load_save_perl_slots_type)map_base;
3592 memcpy (map_base, save_ptr, save_len);
3593
3594 /* we are good citizens and try to make the page read-only, so the evil evil */
3595 /* hackers might have it a bit more difficult */
3596 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3597
3598 PUTBACK;
3599 eval_pv ("undef &Coro::State::_jit", 1);
3600}
3601
3602#endif
3603
2545MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3604MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2546 3605
2547PROTOTYPES: DISABLE 3606PROTOTYPES: DISABLE
2548 3607
2549BOOT: 3608BOOT:
2550{ 3609{
3610#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3611#include "state.h"
2551#ifdef USE_ITHREADS 3612#ifdef USE_ITHREADS
2552# if CORO_PTHREAD 3613# if CORO_PTHREAD
2553 coro_thx = PERL_GET_CONTEXT; 3614 coro_thx = PERL_GET_CONTEXT;
2554# endif 3615# endif
2555#endif 3616#endif
2556 BOOT_PAGESIZE; 3617 /* perl defines these to check for existance first, but why it doesn't */
3618 /* just create them one at init time is not clear to me, except for */
3619 /* programs trying to delete them, but... */
3620 /* anyway, we declare this as invalid and make sure they are initialised here */
3621 DEFSV;
3622 ERRSV;
3623
3624 cctx_current = cctx_new_empty ();
2557 3625
2558 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3626 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2559 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3627 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2560 3628
2561 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3629 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2562 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3630 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
2563 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; 3631 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
2564 3632
2565 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
2566 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); 3633 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
2567 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); 3634 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
2568 3635
2569 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 3636 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
2570 3637
… …
2581 3648
2582 { 3649 {
2583 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3650 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2584 3651
2585 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3652 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2586 hv_store_ent (PL_custom_op_names, slf, 3653 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2587 newSVpv ("coro_slf", 0), 0);
2588 3654
2589 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3655 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2590 hv_store_ent (PL_custom_op_descs, slf, 3656 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2591 newSVpv ("coro schedule like function", 0), 0);
2592 } 3657 }
2593 3658
2594 coroapi.ver = CORO_API_VERSION; 3659 coroapi.ver = CORO_API_VERSION;
2595 coroapi.rev = CORO_API_REVISION; 3660 coroapi.rev = CORO_API_REVISION;
2596 3661
… …
2601 coroapi.prepare_nop = prepare_nop; 3666 coroapi.prepare_nop = prepare_nop;
2602 coroapi.prepare_schedule = prepare_schedule; 3667 coroapi.prepare_schedule = prepare_schedule;
2603 coroapi.prepare_cede = prepare_cede; 3668 coroapi.prepare_cede = prepare_cede;
2604 coroapi.prepare_cede_notself = prepare_cede_notself; 3669 coroapi.prepare_cede_notself = prepare_cede_notself;
2605 3670
2606 { 3671 time_init (aTHX);
2607 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2608 3672
2609 if (!svp) croak ("Time::HiRes is required");
2610 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2611
2612 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2613 }
2614
2615 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3673 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3674#if CORO_JIT
3675 PUTBACK;
3676 jit_init (aTHX);
3677 SPAGAIN;
3678#endif
2616} 3679}
2617 3680
2618SV * 3681SV *
2619new (char *klass, ...) 3682new (SV *klass, ...)
2620 ALIAS: 3683 ALIAS:
2621 Coro::new = 1 3684 Coro::new = 1
2622 CODE: 3685 CODE:
2623{ 3686 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2624 struct coro *coro; 3687 OUTPUT:
2625 MAGIC *mg;
2626 HV *hv;
2627 CV *cb;
2628 int i;
2629
2630 if (items > 1)
2631 {
2632 cb = coro_sv_2cv (aTHX_ ST (1));
2633
2634 if (!ix)
2635 {
2636 if (CvISXSUB (cb))
2637 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2638
2639 if (!CvROOT (cb))
2640 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2641 }
2642 }
2643
2644 Newz (0, coro, 1, struct coro);
2645 coro->args = newAV ();
2646 coro->flags = CF_NEW;
2647
2648 if (coro_first) coro_first->prev = coro;
2649 coro->next = coro_first;
2650 coro_first = coro;
2651
2652 coro->hv = hv = newHV ();
2653 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2654 mg->mg_flags |= MGf_DUP;
2655 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2656
2657 if (items > 1)
2658 {
2659 av_extend (coro->args, items - 1 + ix);
2660
2661 if (ix)
2662 {
2663 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2664 cb = cv_coro_run;
2665 }
2666
2667 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2668
2669 for (i = 2; i < items; i++)
2670 av_push (coro->args, newSVsv (ST (i)));
2671 }
2672}
2673 OUTPUT:
2674 RETVAL 3688 RETVAL
2675 3689
2676void 3690void
2677transfer (...) 3691transfer (...)
2678 PROTOTYPE: $$ 3692 PROTOTYPE: $$
2679 CODE: 3693 CODE:
2680 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3694 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2681 3695
2682bool 3696SV *
2683_destroy (SV *coro_sv) 3697clone (Coro::State coro)
2684 CODE: 3698 CODE:
2685 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 3699{
3700#if CORO_CLONE
3701 struct coro *ncoro = coro_clone (aTHX_ coro);
3702 MAGIC *mg;
3703 /* TODO: too much duplication */
3704 ncoro->hv = newHV ();
3705 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3706 mg->mg_flags |= MGf_DUP;
3707 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3708#else
3709 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3710#endif
3711}
2686 OUTPUT: 3712 OUTPUT:
2687 RETVAL 3713 RETVAL
2688
2689void
2690_exit (int code)
2691 PROTOTYPE: $
2692 CODE:
2693 _exit (code);
2694 3714
2695int 3715int
2696cctx_stacksize (int new_stacksize = 0) 3716cctx_stacksize (int new_stacksize = 0)
2697 PROTOTYPE: ;$ 3717 PROTOTYPE: ;$
2698 CODE: 3718 CODE:
… …
2734void 3754void
2735list () 3755list ()
2736 PROTOTYPE: 3756 PROTOTYPE:
2737 PPCODE: 3757 PPCODE:
2738{ 3758{
2739 struct coro *coro; 3759 struct coro *coro;
2740 for (coro = coro_first; coro; coro = coro->next) 3760 for (coro = coro_first; coro; coro = coro->next)
2741 if (coro->hv) 3761 if (coro->hv)
2742 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3762 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2743} 3763}
2744 3764
… …
2748 eval = 1 3768 eval = 1
2749 CODE: 3769 CODE:
2750{ 3770{
2751 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3771 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2752 { 3772 {
2753 struct coro temp; 3773 struct coro *current = SvSTATE_current;
3774 struct CoroSLF slf_save;
2754 3775
2755 if (!(coro->flags & CF_RUNNING)) 3776 if (current != coro)
2756 { 3777 {
2757 PUTBACK; 3778 PUTBACK;
2758 save_perl (aTHX_ &temp); 3779 save_perl (aTHX_ current);
2759 load_perl (aTHX_ coro); 3780 load_perl (aTHX_ coro);
3781 /* the coro is most likely in an active SLF call.
3782 * while not strictly required (the code we execute is
3783 * not allowed to call any SLF functions), it's cleaner
3784 * to reinitialise the slf_frame and restore it later.
3785 * This might one day allow us to actually do SLF calls
3786 * from code executed here.
3787 */
3788 slf_save = slf_frame;
3789 slf_frame.prepare = 0;
3790 SPAGAIN;
2760 } 3791 }
2761 3792
2762 {
2763 dSP;
2764 ENTER;
2765 SAVETMPS;
2766 PUTBACK;
2767 PUSHSTACK; 3793 PUSHSTACK;
3794
2768 PUSHMARK (SP); 3795 PUSHMARK (SP);
3796 PUTBACK;
2769 3797
2770 if (ix) 3798 if (ix)
2771 eval_sv (coderef, 0); 3799 eval_sv (coderef, 0);
2772 else 3800 else
2773 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3801 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2774 3802
2775 POPSTACK; 3803 POPSTACK;
2776 SPAGAIN; 3804 SPAGAIN;
2777 FREETMPS;
2778 LEAVE;
2779 PUTBACK;
2780 }
2781 3805
2782 if (!(coro->flags & CF_RUNNING)) 3806 if (current != coro)
2783 { 3807 {
3808 PUTBACK;
3809 slf_frame = slf_save;
2784 save_perl (aTHX_ coro); 3810 save_perl (aTHX_ coro);
2785 load_perl (aTHX_ &temp); 3811 load_perl (aTHX_ current);
2786 SPAGAIN; 3812 SPAGAIN;
2787 } 3813 }
2788 } 3814 }
2789} 3815}
2790 3816
… …
2793 PROTOTYPE: $ 3819 PROTOTYPE: $
2794 ALIAS: 3820 ALIAS:
2795 is_ready = CF_READY 3821 is_ready = CF_READY
2796 is_running = CF_RUNNING 3822 is_running = CF_RUNNING
2797 is_new = CF_NEW 3823 is_new = CF_NEW
2798 is_destroyed = CF_DESTROYED 3824 is_destroyed = CF_ZOMBIE
3825 is_zombie = CF_ZOMBIE
3826 is_suspended = CF_SUSPENDED
2799 CODE: 3827 CODE:
2800 RETVAL = boolSV (coro->flags & ix); 3828 RETVAL = boolSV (coro->flags & ix);
2801 OUTPUT: 3829 OUTPUT:
2802 RETVAL 3830 RETVAL
2803 3831
2804void 3832void
2805throw (Coro::State self, SV *throw = &PL_sv_undef) 3833throw (SV *self, SV *exception = &PL_sv_undef)
2806 PROTOTYPE: $;$ 3834 PROTOTYPE: $;$
2807 CODE: 3835 CODE:
2808{ 3836{
3837 struct coro *coro = SvSTATE (self);
2809 struct coro *current = SvSTATE_current; 3838 struct coro *current = SvSTATE_current;
2810 SV **throwp = self == current ? &CORO_THROW : &self->except; 3839 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2811 SvREFCNT_dec (*throwp); 3840 SvREFCNT_dec (*exceptionp);
2812 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3841 SvGETMAGIC (exception);
3842 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3843
3844 api_ready (aTHX_ self);
2813} 3845}
2814 3846
2815void 3847void
2816api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3848api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2817 PROTOTYPE: $;$ 3849 PROTOTYPE: $;$
… …
2819 3851
2820SV * 3852SV *
2821has_cctx (Coro::State coro) 3853has_cctx (Coro::State coro)
2822 PROTOTYPE: $ 3854 PROTOTYPE: $
2823 CODE: 3855 CODE:
2824 RETVAL = boolSV (!!coro->cctx); 3856 /* maybe manage the running flag differently */
3857 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2825 OUTPUT: 3858 OUTPUT:
2826 RETVAL 3859 RETVAL
2827 3860
2828int 3861int
2829is_traced (Coro::State coro) 3862is_traced (Coro::State coro)
… …
2849 3882
2850void 3883void
2851force_cctx () 3884force_cctx ()
2852 PROTOTYPE: 3885 PROTOTYPE:
2853 CODE: 3886 CODE:
2854 SvSTATE_current->cctx->idle_sp = 0; 3887 cctx_current->idle_sp = 0;
2855 3888
2856void 3889void
2857swap_defsv (Coro::State self) 3890swap_defsv (Coro::State self)
2858 PROTOTYPE: $ 3891 PROTOTYPE: $
2859 ALIAS: 3892 ALIAS:
… …
2867 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3900 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2868 3901
2869 SV *tmp = *src; *src = *dst; *dst = tmp; 3902 SV *tmp = *src; *src = *dst; *dst = tmp;
2870 } 3903 }
2871 3904
3905void
3906cancel (Coro::State self)
3907 CODE:
3908 coro_state_destroy (aTHX_ self);
3909
3910SV *
3911enable_times (int enabled = enable_times)
3912 CODE:
3913{
3914 RETVAL = boolSV (enable_times);
3915
3916 if (enabled != enable_times)
3917 {
3918 enable_times = enabled;
3919
3920 coro_times_update ();
3921 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3922 }
3923}
3924 OUTPUT:
3925 RETVAL
3926
3927void
3928times (Coro::State self)
3929 PPCODE:
3930{
3931 struct coro *current = SvSTATE (coro_current);
3932
3933 if (ecb_expect_false (current == self))
3934 {
3935 coro_times_update ();
3936 coro_times_add (SvSTATE (coro_current));
3937 }
3938
3939 EXTEND (SP, 2);
3940 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3941 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3942
3943 if (ecb_expect_false (current == self))
3944 coro_times_sub (SvSTATE (coro_current));
3945}
3946
3947void
3948swap_sv (Coro::State coro, SV *sva, SV *svb)
3949 CODE:
3950{
3951 struct coro *current = SvSTATE_current;
3952 AV *swap_sv;
3953 int i;
3954
3955 sva = SvRV (sva);
3956 svb = SvRV (svb);
3957
3958 if (current == coro)
3959 SWAP_SVS_LEAVE (current);
3960
3961 if (!coro->swap_sv)
3962 coro->swap_sv = newAV ();
3963
3964 swap_sv = coro->swap_sv;
3965
3966 for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2)
3967 {
3968 SV *a = AvARRAY (swap_sv)[i ];
3969 SV *b = AvARRAY (swap_sv)[i + 1];
3970
3971 if (a == sva && b == svb)
3972 {
3973 SvREFCNT_dec_NN (a);
3974 SvREFCNT_dec_NN (b);
3975
3976 for (; i <= AvFILLp (swap_sv) - 2; i++)
3977 AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2];
3978
3979 AvFILLp (swap_sv) -= 2;
3980
3981 goto removed;
3982 }
3983 }
3984
3985 av_push (swap_sv, SvREFCNT_inc_NN (sva));
3986 av_push (swap_sv, SvREFCNT_inc_NN (svb));
3987
3988 removed:
3989
3990 if (current == coro)
3991 SWAP_SVS_ENTER (current);
3992}
3993
2872 3994
2873MODULE = Coro::State PACKAGE = Coro 3995MODULE = Coro::State PACKAGE = Coro
2874 3996
2875BOOT: 3997BOOT:
2876{ 3998{
2877 int i; 3999 if (SVt_LAST > 32)
4000 croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
2878 4001
2879 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2880 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 4002 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2881 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 4003 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2882 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 4004 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2883 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); 4005 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2884 SvREADONLY_on (coro_current); 4006 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
4007 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
4008 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
4009 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
4010
4011 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
4012 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
4013 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
4014 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
2885 4015
2886 coro_stash = gv_stashpv ("Coro", TRUE); 4016 coro_stash = gv_stashpv ("Coro", TRUE);
2887 4017
2888 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 4018 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2889 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 4019 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2890 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 4020 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2891 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 4021 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2892 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 4022 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2893 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 4023 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2894
2895 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2896 coro_ready[i] = newAV ();
2897 4024
2898 { 4025 {
2899 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 4026 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2900 4027
2901 coroapi.schedule = api_schedule; 4028 coroapi.schedule = api_schedule;
4029 coroapi.schedule_to = api_schedule_to;
2902 coroapi.cede = api_cede; 4030 coroapi.cede = api_cede;
2903 coroapi.cede_notself = api_cede_notself; 4031 coroapi.cede_notself = api_cede_notself;
2904 coroapi.ready = api_ready; 4032 coroapi.ready = api_ready;
2905 coroapi.is_ready = api_is_ready; 4033 coroapi.is_ready = api_is_ready;
2906 coroapi.nready = coro_nready; 4034 coroapi.nready = coro_nready;
2907 coroapi.current = coro_current; 4035 coroapi.current = coro_current;
2908 4036
4037 coroapi.enterleave_hook = api_enterleave_hook;
4038 coroapi.enterleave_unhook = api_enterleave_unhook;
4039 coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
4040
2909 /*GCoroAPI = &coroapi;*/ 4041 /*GCoroAPI = &coroapi;*/
2910 sv_setiv (sv, (IV)&coroapi); 4042 sv_setiv (sv, (IV)&coroapi);
2911 SvREADONLY_on (sv); 4043 SvREADONLY_on (sv);
2912 } 4044 }
2913} 4045}
2914 4046
4047SV *
4048async (...)
4049 PROTOTYPE: &@
4050 CODE:
4051 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
4052 api_ready (aTHX_ RETVAL);
4053 OUTPUT:
4054 RETVAL
4055
4056void
4057_destroy (Coro::State coro)
4058 CODE:
4059 /* used by the manager thread */
4060 coro_state_destroy (aTHX_ coro);
4061
4062void
4063on_destroy (Coro::State coro, SV *cb)
4064 CODE:
4065 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
4066
4067void
4068join (...)
4069 CODE:
4070 CORO_EXECUTE_SLF_XS (slf_init_join);
4071
4072void
4073terminate (...)
4074 CODE:
4075 CORO_EXECUTE_SLF_XS (slf_init_terminate);
4076
4077void
4078cancel (...)
4079 CODE:
4080 CORO_EXECUTE_SLF_XS (slf_init_cancel);
4081
4082int
4083safe_cancel (Coro::State self, ...)
4084 C_ARGS: aTHX_ self, &ST (1), items - 1
4085
2915void 4086void
2916schedule (...) 4087schedule (...)
2917 CODE: 4088 CODE:
2918 CORO_EXECUTE_SLF_XS (slf_init_schedule); 4089 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2919 4090
2920void 4091void
4092schedule_to (...)
4093 CODE:
4094 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
4095
4096void
4097cede_to (...)
4098 CODE:
4099 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
4100
4101void
2921cede (...) 4102cede (...)
2922 CODE: 4103 CODE:
2923 CORO_EXECUTE_SLF_XS (slf_init_cede); 4104 CORO_EXECUTE_SLF_XS (slf_init_cede);
2924 4105
2925void 4106void
… …
2929 4110
2930void 4111void
2931_set_current (SV *current) 4112_set_current (SV *current)
2932 PROTOTYPE: $ 4113 PROTOTYPE: $
2933 CODE: 4114 CODE:
2934 SvREFCNT_dec (SvRV (coro_current)); 4115 SvREFCNT_dec_NN (SvRV (coro_current));
2935 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 4116 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
2936 4117
2937void 4118void
2938_set_readyhook (SV *hook) 4119_set_readyhook (SV *hook)
2939 PROTOTYPE: $ 4120 PROTOTYPE: $
2940 CODE: 4121 CODE:
2941 SvREFCNT_dec (coro_readyhook); 4122 SvREFCNT_dec (coro_readyhook);
4123 SvGETMAGIC (hook);
4124 if (SvOK (hook))
4125 {
2942 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 4126 coro_readyhook = newSVsv (hook);
4127 CORO_READYHOOK = invoke_sv_ready_hook_helper;
4128 }
4129 else
4130 {
4131 coro_readyhook = 0;
4132 CORO_READYHOOK = 0;
4133 }
2943 4134
2944int 4135int
2945prio (Coro::State coro, int newprio = 0) 4136prio (Coro::State coro, int newprio = 0)
2946 PROTOTYPE: $;$ 4137 PROTOTYPE: $;$
2947 ALIAS: 4138 ALIAS:
… …
2953 if (items > 1) 4144 if (items > 1)
2954 { 4145 {
2955 if (ix) 4146 if (ix)
2956 newprio = coro->prio - newprio; 4147 newprio = coro->prio - newprio;
2957 4148
2958 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 4149 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2959 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 4150 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2960 4151
2961 coro->prio = newprio; 4152 coro->prio = newprio;
2962 } 4153 }
2963} 4154}
2964 OUTPUT: 4155 OUTPUT:
… …
2978 CODE: 4169 CODE:
2979 RETVAL = coro_nready; 4170 RETVAL = coro_nready;
2980 OUTPUT: 4171 OUTPUT:
2981 RETVAL 4172 RETVAL
2982 4173
2983# for async_pool speedup
2984void 4174void
2985_pool_1 (SV *cb) 4175suspend (Coro::State self)
4176 PROTOTYPE: $
2986 CODE: 4177 CODE:
2987{ 4178 self->flags |= CF_SUSPENDED;
2988 HV *hv = (HV *)SvRV (coro_current);
2989 struct coro *coro = SvSTATE_hv ((SV *)hv);
2990 AV *defav = GvAV (PL_defgv);
2991 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2992 AV *invoke_av;
2993 int i, len;
2994 4179
2995 if (!invoke) 4180void
4181resume (Coro::State self)
4182 PROTOTYPE: $
4183 CODE:
4184 self->flags &= ~CF_SUSPENDED;
4185
4186void
4187_pool_handler (...)
4188 CODE:
4189 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
4190
4191void
4192async_pool (SV *cv, ...)
4193 PROTOTYPE: &@
4194 PPCODE:
4195{
4196 HV *hv = (HV *)av_pop (av_async_pool);
4197 AV *av = newAV ();
4198 SV *cb = ST (0);
4199 int i;
4200
4201 av_extend (av, items - 2);
4202 for (i = 1; i < items; ++i)
4203 av_push (av, SvREFCNT_inc_NN (ST (i)));
4204
4205 if ((SV *)hv == &PL_sv_undef)
2996 { 4206 {
2997 SV *old = PL_diehook; 4207 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2998 PL_diehook = 0; 4208 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2999 SvREFCNT_dec (old); 4209 SvREFCNT_dec_NN (sv);
3000 croak ("\3async_pool terminate\2\n");
3001 } 4210 }
3002 4211
3003 SvREFCNT_dec (coro->saved_deffh);
3004 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
3005
3006 hv_store (hv, "desc", sizeof ("desc") - 1,
3007 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
3008
3009 invoke_av = (AV *)SvRV (invoke);
3010 len = av_len (invoke_av);
3011
3012 sv_setsv (cb, AvARRAY (invoke_av)[0]);
3013
3014 if (len > 0)
3015 { 4212 {
3016 av_fill (defav, len - 1); 4213 struct coro *coro = SvSTATE_hv (hv);
3017 for (i = 0; i < len; ++i) 4214
3018 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 4215 assert (!coro->invoke_cb);
4216 assert (!coro->invoke_av);
4217 coro->invoke_cb = SvREFCNT_inc (cb);
4218 coro->invoke_av = av;
3019 } 4219 }
3020}
3021 4220
3022void 4221 api_ready (aTHX_ (SV *)hv);
3023_pool_2 (SV *cb)
3024 CODE:
3025{
3026 HV *hv = (HV *)SvRV (coro_current);
3027 struct coro *coro = SvSTATE_hv ((SV *)hv);
3028 4222
3029 sv_setsv (cb, &PL_sv_undef); 4223 if (GIMME_V != G_VOID)
3030 4224 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3031 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 4225 else
3032 coro->saved_deffh = 0;
3033
3034 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
3035 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
3036 {
3037 SV *old = PL_diehook;
3038 PL_diehook = 0;
3039 SvREFCNT_dec (old); 4226 SvREFCNT_dec_NN (hv);
3040 croak ("\3async_pool terminate\2\n");
3041 }
3042
3043 av_clear (GvAV (PL_defgv));
3044 hv_store (hv, "desc", sizeof ("desc") - 1,
3045 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
3046
3047 coro->prio = 0;
3048
3049 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
3050 api_trace (aTHX_ coro_current, 0);
3051
3052 av_push (av_async_pool, newSVsv (coro_current));
3053} 4227}
3054 4228
3055SV * 4229SV *
3056rouse_cb () 4230rouse_cb ()
3057 PROTOTYPE: 4231 PROTOTYPE:
… …
3064rouse_wait (...) 4238rouse_wait (...)
3065 PROTOTYPE: ;$ 4239 PROTOTYPE: ;$
3066 PPCODE: 4240 PPCODE:
3067 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4241 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3068 4242
4243void
4244on_enter (SV *block)
4245 ALIAS:
4246 on_leave = 1
4247 PROTOTYPE: &
4248 CODE:
4249{
4250 struct coro *coro = SvSTATE_current;
4251 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4252
4253 block = s_get_cv_croak (block);
4254
4255 if (!*avp)
4256 *avp = newAV ();
4257
4258 av_push (*avp, SvREFCNT_inc (block));
4259
4260 if (!ix)
4261 on_enterleave_call (aTHX_ block);
4262
4263 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4264 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4265 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4266}
4267
3069 4268
3070MODULE = Coro::State PACKAGE = PerlIO::cede 4269MODULE = Coro::State PACKAGE = PerlIO::cede
3071 4270
3072BOOT: 4271BOOT:
3073 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4272 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3076MODULE = Coro::State PACKAGE = Coro::Semaphore 4275MODULE = Coro::State PACKAGE = Coro::Semaphore
3077 4276
3078SV * 4277SV *
3079new (SV *klass, SV *count = 0) 4278new (SV *klass, SV *count = 0)
3080 CODE: 4279 CODE:
4280{
4281 int semcnt = 1;
4282
4283 if (count)
4284 {
4285 SvGETMAGIC (count);
4286
4287 if (SvOK (count))
4288 semcnt = SvIV (count);
4289 }
4290
3081 RETVAL = sv_bless ( 4291 RETVAL = sv_bless (
3082 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4292 coro_waitarray_new (aTHX_ semcnt),
3083 GvSTASH (CvGV (cv)) 4293 GvSTASH (CvGV (cv))
3084 ); 4294 );
4295}
3085 OUTPUT: 4296 OUTPUT:
3086 RETVAL 4297 RETVAL
3087 4298
3088# helper for Coro::Channel 4299# helper for Coro::Channel and others
3089SV * 4300SV *
3090_alloc (int count) 4301_alloc (int count)
3091 CODE: 4302 CODE:
3092 RETVAL = coro_waitarray_new (aTHX_ count); 4303 RETVAL = coro_waitarray_new (aTHX_ count);
3093 OUTPUT: 4304 OUTPUT:
… …
3099 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); 4310 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
3100 OUTPUT: 4311 OUTPUT:
3101 RETVAL 4312 RETVAL
3102 4313
3103void 4314void
3104up (SV *self, int adjust = 1) 4315up (SV *self)
3105 ALIAS:
3106 adjust = 1
3107 CODE: 4316 CODE:
4317 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
4318
4319void
4320adjust (SV *self, int adjust)
4321 CODE:
3108 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 4322 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
3109 4323
3110void 4324void
3111down (...) 4325down (...)
3112 CODE: 4326 CODE:
3113 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 4327 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
… …
3135 XSRETURN_NO; 4349 XSRETURN_NO;
3136} 4350}
3137 4351
3138void 4352void
3139waiters (SV *self) 4353waiters (SV *self)
3140 PPCODE: 4354 PPCODE:
3141{ 4355{
3142 AV *av = (AV *)SvRV (self); 4356 AV *av = (AV *)SvRV (self);
3143 int wcount = AvFILLp (av) + 1 - 1; 4357 int wcount = AvFILLp (av) + 1 - 1;
3144 4358
3145 if (GIMME_V == G_SCALAR) 4359 if (GIMME_V == G_SCALAR)
… …
3151 for (i = 1; i <= wcount; ++i) 4365 for (i = 1; i <= wcount; ++i)
3152 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4366 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3153 } 4367 }
3154} 4368}
3155 4369
4370MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4371
4372void
4373_may_delete (SV *sem, int count, unsigned int extra_refs)
4374 PPCODE:
4375{
4376 AV *av = (AV *)SvRV (sem);
4377
4378 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4379 && AvFILLp (av) == 0 /* no waiters, just count */
4380 && SvIV (AvARRAY (av)[0]) == count)
4381 XSRETURN_YES;
4382
4383 XSRETURN_NO;
4384}
4385
3156MODULE = Coro::State PACKAGE = Coro::Signal 4386MODULE = Coro::State PACKAGE = Coro::Signal
3157 4387
3158SV * 4388SV *
3159new (SV *klass) 4389new (SV *klass)
3160 CODE: 4390 CODE:
… …
3172 4402
3173void 4403void
3174broadcast (SV *self) 4404broadcast (SV *self)
3175 CODE: 4405 CODE:
3176{ 4406{
3177 AV *av = (AV *)SvRV (self); 4407 AV *av = (AV *)SvRV (self);
3178 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4408 coro_signal_wake (aTHX_ av, AvFILLp (av));
3179} 4409}
3180 4410
3181void 4411void
3182send (SV *self) 4412send (SV *self)
… …
3190 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4420 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3191} 4421}
3192 4422
3193IV 4423IV
3194awaited (SV *self) 4424awaited (SV *self)
3195 CODE: 4425 CODE:
3196 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4426 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3197 OUTPUT: 4427 OUTPUT:
3198 RETVAL 4428 RETVAL
3199 4429
3200 4430
… …
3205 4435
3206void 4436void
3207_schedule (...) 4437_schedule (...)
3208 CODE: 4438 CODE:
3209{ 4439{
3210 static int incede; 4440 static int incede;
3211 4441
3212 api_cede_notself (aTHX); 4442 api_cede_notself (aTHX);
3213 4443
3214 ++incede; 4444 ++incede;
3215 while (coro_nready >= incede && api_cede (aTHX)) 4445 while (coro_nready >= incede && api_cede (aTHX))
… …
3231 4461
3232void 4462void
3233_register (char *target, char *proto, SV *req) 4463_register (char *target, char *proto, SV *req)
3234 CODE: 4464 CODE:
3235{ 4465{
3236 CV *req_cv = coro_sv_2cv (aTHX_ req); 4466 SV *req_cv = s_get_cv_croak (req);
3237 /* newXSproto doesn't return the CV on 5.8 */ 4467 /* newXSproto doesn't return the CV on 5.8 */
3238 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4468 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3239 sv_setpv ((SV *)slf_cv, proto); 4469 sv_setpv ((SV *)slf_cv, proto);
3240 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4470 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3241} 4471}
3242 4472
4473MODULE = Coro::State PACKAGE = Coro::Select
4474
4475void
4476patch_pp_sselect ()
4477 CODE:
4478 if (!coro_old_pp_sselect)
4479 {
4480 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4481 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4482 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4483 }
4484
4485void
4486unpatch_pp_sselect ()
4487 CODE:
4488 if (coro_old_pp_sselect)
4489 {
4490 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4491 coro_old_pp_sselect = 0;
4492 }
4493
4494MODULE = Coro::State PACKAGE = Coro::Util
4495
4496void
4497_exit (int code)
4498 CODE:
4499 _exit (code);
4500
4501NV
4502time ()
4503 CODE:
4504 RETVAL = nvtime (aTHX);
4505 OUTPUT:
4506 RETVAL
4507
4508NV
4509gettimeofday ()
4510 PPCODE:
4511{
4512 UV tv [2];
4513 u2time (aTHX_ tv);
4514 EXTEND (SP, 2);
4515 PUSHs (sv_2mortal (newSVuv (tv [0])));
4516 PUSHs (sv_2mortal (newSVuv (tv [1])));
4517}
4518

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