ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.303 by root, Wed Nov 19 05:52:42 2008 UTC vs.
Revision 1.456 by root, Sun Mar 6 06:26:21 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
239 CV *startcv; /* the CV to execute */
251 AV *args; /* data associated with this coroutine (initial args) */ 240 AV *args; /* data associated with this coroutine (initial args) */
252 int refcnt; /* coroutines are refcounted, yes */
253 int flags; /* CF_ flags */ 241 int flags; /* CF_ flags */
254 HV *hv; /* the perl hash associated with this coro, if any */ 242 HV *hv; /* the perl hash associated with this coro, if any */
255 void (*on_destroy)(pTHX_ struct coro *coro);
256 243
257 /* statistics */ 244 /* statistics */
258 int usecount; /* number of transfers to this coro */ 245 int usecount; /* number of transfers to this coro */
259 246
260 /* coro process data */ 247 /* coro process data */
261 int prio; 248 int prio;
262 SV *except; /* exception to be thrown */ 249 SV *except; /* exception to be thrown */
263 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 */
264 253
265 /* async_pool */ 254 /* async_pool */
266 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;
267 268
268 /* linked list */ 269 /* linked list */
269 struct coro *next, *prev; 270 struct coro *next, *prev;
270}; 271};
271 272
272typedef struct coro *Coro__State; 273typedef struct coro *Coro__State;
273typedef struct coro *Coro__State_or_hashref; 274typedef struct coro *Coro__State_or_hashref;
274 275
275/* the following variables are effectively part of the perl context */ 276/* the following variables are effectively part of the perl context */
276/* and get copied between struct coro and these variables */ 277/* and get copied between struct coro and these variables */
277/* the mainr easonw e don't support windows process emulation */ 278/* the main reason we don't support windows process emulation */
278static struct CoroSLF slf_frame; /* the current slf frame */ 279static struct CoroSLF slf_frame; /* the current slf frame */
279 280
280/** Coro ********************************************************************/ 281/** Coro ********************************************************************/
281 282
282#define PRIO_MAX 3 283#define CORO_PRIO_MAX 3
283#define PRIO_HIGH 1 284#define CORO_PRIO_HIGH 1
284#define PRIO_NORMAL 0 285#define CORO_PRIO_NORMAL 0
285#define PRIO_LOW -1 286#define CORO_PRIO_LOW -1
286#define PRIO_IDLE -3 287#define CORO_PRIO_IDLE -3
287#define PRIO_MIN -4 288#define CORO_PRIO_MIN -4
288 289
289/* for Coro.pm */ 290/* for Coro.pm */
290static SV *coro_current; 291static SV *coro_current;
291static SV *coro_readyhook; 292static SV *coro_readyhook;
292static 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;
293static struct coro *coro_first; 295static struct coro *coro_first;
294#define coro_nready coroapi.nready 296#define coro_nready coroapi.nready
295 297
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
296/** lowlevel stuff **********************************************************/ 393/** lowlevel stuff **********************************************************/
297 394
298static SV * 395static SV * ecb_noinline
299coro_get_sv (pTHX_ const char *name, int create) 396coro_get_sv (pTHX_ const char *name, int create)
300{ 397{
301#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
302 /* 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 */
303 get_sv (name, create); 400 get_sv (name, create);
304#endif 401#endif
305 return get_sv (name, create); 402 return get_sv (name, create);
306} 403}
307 404
308static AV * 405static AV * ecb_noinline
309coro_get_av (pTHX_ const char *name, int create) 406coro_get_av (pTHX_ const char *name, int create)
310{ 407{
311#if PERL_VERSION_ATLEAST (5,10,0) 408#if PERL_VERSION_ATLEAST (5,10,0)
312 /* 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 */
313 get_av (name, create); 410 get_av (name, create);
314#endif 411#endif
315 return get_av (name, create); 412 return get_av (name, create);
316} 413}
317 414
318static HV * 415static HV * ecb_noinline
319coro_get_hv (pTHX_ const char *name, int create) 416coro_get_hv (pTHX_ const char *name, int create)
320{ 417{
321#if PERL_VERSION_ATLEAST (5,10,0) 418#if PERL_VERSION_ATLEAST (5,10,0)
322 /* 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 */
323 get_hv (name, create); 420 get_hv (name, create);
324#endif 421#endif
325 return get_hv (name, create); 422 return get_hv (name, create);
326} 423}
327 424
328static AV * 425ecb_inline void
426coro_times_update (void)
427{
428#ifdef coro_clock_gettime
429 struct timespec ts;
430
431 ts.tv_sec = ts.tv_nsec = 0;
432 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
433 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
434
435 ts.tv_sec = ts.tv_nsec = 0;
436 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
437 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
438#else
439 dTHX;
440 UV tv[2];
441
442 u2time (aTHX_ tv);
443 time_real [0] = tv [0];
444 time_real [1] = tv [1] * 1000;
445#endif
446}
447
448ecb_inline void
449coro_times_add (struct coro *c)
450{
451 c->t_real [1] += time_real [1];
452 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
453 c->t_real [0] += time_real [0];
454
455 c->t_cpu [1] += time_cpu [1];
456 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
457 c->t_cpu [0] += time_cpu [0];
458}
459
460ecb_inline void
461coro_times_sub (struct coro *c)
462{
463 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
464 c->t_real [1] -= time_real [1];
465 c->t_real [0] -= time_real [0];
466
467 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
468 c->t_cpu [1] -= time_cpu [1];
469 c->t_cpu [0] -= time_cpu [0];
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 *
329coro_clone_padlist (pTHX_ CV *cv) 531coro_derive_padlist (pTHX_ CV *cv)
330{ 532{
331 AV *padlist = CvPADLIST (cv); 533 PADLIST *padlist = CvPADLIST (cv);
332 AV *newpadlist, *newpad; 534 PADLIST *newpadlist;
535 PADNAMELIST *padnames;
536 PAD *newpad;
537 PADOFFSET off = PadlistMAX (padlist) + 1;
333 538
334 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. */
335 AvREAL_off (newpadlist); 567 AvREAL_off (newpadlist);
336#if PERL_VERSION_ATLEAST (5,10,0)
337 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
338#else
339 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
340#endif 568#endif
341 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
342 --AvFILLp (padlist);
343 569
344 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 570 /* Already extended to 2 elements by newPADLIST. */
345 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;
346 578
347 return newpadlist; 579 return newpadlist;
348} 580}
349 581
350static void 582ecb_inline void
351free_padlist (pTHX_ AV *padlist) 583free_padlist (pTHX_ PADLIST *padlist)
352{ 584{
353 /* may be during global destruction */ 585 /* may be during global destruction */
354 if (SvREFCNT (padlist)) 586 if (!IN_DESTRUCT)
355 { 587 {
356 I32 i = AvFILLp (padlist); 588 I32 i = PadlistMAX (padlist);
357 while (i >= 0) 589
590 while (i > 0) /* special-case index 0 */
358 { 591 {
359 SV **svp = av_fetch (padlist, i--, FALSE); 592 /* we try to be extra-careful here */
593 PAD *pad = PadlistARRAY (padlist)[i--];
594
360 if (svp) 595 if (pad)
361 { 596 {
362 SV *sv; 597 I32 j = PadMAX (pad);
363 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 598
599 while (j >= 0)
364 SvREFCNT_dec (sv); 600 SvREFCNT_dec (PadARRAY (pad)[j--]);
365 601
602 PadMAX (pad) = -1;
366 SvREFCNT_dec (*svp); 603 SvREFCNT_dec (pad);
367 } 604 }
368 } 605 }
369 606
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);
370 SvREFCNT_dec ((SV*)padlist); 615 SvREFCNT_dec ((SV*)padlist);
616#endif
371 } 617 }
372} 618}
373 619
374static int 620static int
375coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 621coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
376{ 622{
377 AV *padlist; 623 PADLIST *padlist;
378 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;
379 626
380 /* casting is fun. */ 627 /* perl manages to free our internal AV and _then_ call us */
381 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 628 if (IN_DESTRUCT)
629 return 0;
630
631 while (len--)
382 free_padlist (aTHX_ padlist); 632 free_padlist (aTHX_ padlists[len]);
383
384 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
385 633
386 return 0; 634 return 0;
387} 635}
388
389#define CORO_MAGIC_type_cv 26
390#define CORO_MAGIC_type_state PERL_MAGIC_ext
391 636
392static MGVTBL coro_cv_vtbl = { 637static MGVTBL coro_cv_vtbl = {
393 0, 0, 0, 0, 638 0, 0, 0, 0,
394 coro_cv_free 639 coro_cv_free
395}; 640};
396 641
397#define CORO_MAGIC_NN(sv, type) \
398 (expect_true (SvMAGIC (sv)->mg_type == type) \
399 ? SvMAGIC (sv) \
400 : mg_find (sv, type))
401
402#define CORO_MAGIC(sv, type) \
403 (expect_true (SvMAGIC (sv)) \
404 ? CORO_MAGIC_NN (sv, type) \
405 : 0)
406
407#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
408#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
409
410INLINE struct coro *
411SvSTATE_ (pTHX_ SV *coro)
412{
413 HV *stash;
414 MAGIC *mg;
415
416 if (SvROK (coro))
417 coro = SvRV (coro);
418
419 if (expect_false (SvTYPE (coro) != SVt_PVHV))
420 croak ("Coro::State object required");
421
422 stash = SvSTASH (coro);
423 if (expect_false (stash != coro_stash && stash != coro_state_stash))
424 {
425 /* very slow, but rare, check */
426 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
427 croak ("Coro::State object required");
428 }
429
430 mg = CORO_MAGIC_state (coro);
431 return (struct coro *)mg->mg_ptr;
432}
433
434#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
435
436/* faster than SvSTATE, but expects a coroutine hv */
437#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
438#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
439
440/* the next two functions merely cache the padlists */ 642/* the next two functions merely cache the padlists */
441static void 643ecb_inline void
442get_padlist (pTHX_ CV *cv) 644get_padlist (pTHX_ CV *cv)
443{ 645{
444 MAGIC *mg = CORO_MAGIC_cv (cv); 646 MAGIC *mg = CORO_MAGIC_cv (cv);
445 AV *av; 647 size_t *lenp;
446 648
447 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 649 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
448 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 650 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
449 else 651 else
450 { 652 {
451#if CORO_PREFER_PERL_FUNCTIONS 653#if CORO_PREFER_PERL_FUNCTIONS
452 /* this is probably cleaner? but also slower! */ 654 /* this is probably cleaner? but also slower! */
453 /* in practise, it seems to be less stable */ 655 /* in practise, it seems to be less stable */
454 CV *cp = Perl_cv_clone (cv); 656 CV *cp = Perl_cv_clone (aTHX_ cv);
455 CvPADLIST (cv) = CvPADLIST (cp); 657 CvPADLIST (cv) = CvPADLIST (cp);
456 CvPADLIST (cp) = 0; 658 CvPADLIST (cp) = 0;
457 SvREFCNT_dec (cp); 659 SvREFCNT_dec (cp);
458#else 660#else
459 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 661 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
460#endif 662#endif
461 } 663 }
462} 664}
463 665
464static void 666ecb_inline void
465put_padlist (pTHX_ CV *cv) 667put_padlist (pTHX_ CV *cv)
466{ 668{
467 MAGIC *mg = CORO_MAGIC_cv (cv); 669 MAGIC *mg = CORO_MAGIC_cv (cv);
468 AV *av;
469 670
470 if (expect_false (!mg)) 671 if (ecb_expect_false (!mg))
672 {
471 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);
472 681
473 av = (AV *)mg->mg_obj; 682 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
474
475 if (expect_false (AvFILLp (av) >= AvMAX (av)))
476 av_extend (av, AvMAX (av) + 1);
477
478 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
479} 683}
480 684
481/** load & save, init *******************************************************/ 685/** load & save, init *******************************************************/
686
687ecb_inline void
688swap_sv (SV *a, SV *b)
689{
690 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
691 SV tmp;
692
693 /* swap sv_any */
694 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
695
696 /* swap sv_flags */
697 SvFLAGS (&tmp) = SvFLAGS (a);
698 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
699 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
700
701#if PERL_VERSION_ATLEAST (5,10,0)
702 /* perl 5.10 and later complicates this _quite_ a bit, but it also
703 * is much faster, so no quarrels here. alternatively, we could
704 * sv_upgrade to avoid this.
705 */
706 {
707 /* swap sv_u */
708 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
709
710 /* if SvANY points to the head, we need to adjust the pointers,
711 * as the pointer for a still points to b, and maybe vice versa.
712 */
713 U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
714 #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
715 svany_in_head_set |= 1 << SVt_NV;
716 #endif
717
718 #define svany_in_head(type) (svany_in_head_set & (1 << (type)))
719
720 if (svany_in_head (SvTYPE (a)))
721 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
722
723 if (svany_in_head (SvTYPE (b)))
724 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
725 }
726#endif
727}
728
729/* swap sv heads, at least logically */
730static void
731swap_svs (pTHX_ Coro__State c)
732{
733 int i;
734
735 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
736 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
737}
738
739#define SWAP_SVS(coro) \
740 if (ecb_expect_false ((coro)->swap_sv)) \
741 swap_svs (aTHX_ (coro))
742
743static void
744on_enterleave_call (pTHX_ SV *cb);
482 745
483static void 746static void
484load_perl (pTHX_ Coro__State c) 747load_perl (pTHX_ Coro__State c)
485{ 748{
486 perl_slots *slot = c->slot; 749 perl_slots *slot = c->slot;
487 c->slot = 0; 750 c->slot = 0;
488 751
489 PL_mainstack = c->mainstack; 752 PL_mainstack = c->mainstack;
490 753
491 GvSV (PL_defgv) = slot->defsv; 754#if CORO_JIT
492 GvAV (PL_defgv) = slot->defav; 755 load_perl_slots (slot);
493 GvSV (PL_errgv) = slot->errsv; 756#else
494 GvSV (irsgv) = slot->irsgv;
495
496 #define VAR(name,type) PL_ ## name = slot->name; 757 #define VARx(name,expr,type) expr = slot->name;
497 # include "state.h" 758 #include "state.h"
498 #undef VAR 759#endif
499 760
500 { 761 {
501 dSP; 762 dSP;
502 763
503 CV *cv; 764 CV *cv;
504 765
505 /* now do the ugly restore mess */ 766 /* now do the ugly restore mess */
506 while (expect_true (cv = (CV *)POPs)) 767 while (ecb_expect_true (cv = (CV *)POPs))
507 { 768 {
508 put_padlist (aTHX_ cv); /* mark this padlist as available */ 769 put_padlist (aTHX_ cv); /* mark this padlist as available */
509 CvDEPTH (cv) = PTR2IV (POPs); 770 CvDEPTH (cv) = PTR2IV (POPs);
510 CvPADLIST (cv) = (AV *)POPs; 771 CvPADLIST (cv) = (PADLIST *)POPs;
511 } 772 }
512 773
513 PUTBACK; 774 PUTBACK;
514 } 775 }
515 776
516 slf_frame = c->slf_frame; 777 slf_frame = c->slf_frame;
517 CORO_THROW = c->except; 778 CORO_THROW = c->except;
779
780 if (ecb_expect_false (enable_times))
781 {
782 if (ecb_expect_false (!times_valid))
783 coro_times_update ();
784
785 coro_times_sub (c);
786 }
787
788 if (ecb_expect_false (c->on_enter))
789 {
790 int i;
791
792 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
793 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
794 }
795
796 if (ecb_expect_false (c->on_enter_xs))
797 {
798 int i;
799
800 for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
801 ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
802 }
803
804 SWAP_SVS (c);
518} 805}
519 806
520static void 807static void
521save_perl (pTHX_ Coro__State c) 808save_perl (pTHX_ Coro__State c)
522{ 809{
810 SWAP_SVS (c);
811
812 if (ecb_expect_false (c->on_leave_xs))
813 {
814 int i;
815
816 for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
817 ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
818 }
819
820 if (ecb_expect_false (c->on_leave))
821 {
822 int i;
823
824 for (i = AvFILLp (c->on_leave); i >= 0; --i)
825 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
826 }
827
828 times_valid = 0;
829
830 if (ecb_expect_false (enable_times))
831 {
832 coro_times_update (); times_valid = 1;
833 coro_times_add (c);
834 }
835
523 c->except = CORO_THROW; 836 c->except = CORO_THROW;
524 c->slf_frame = slf_frame; 837 c->slf_frame = slf_frame;
525 838
526 { 839 {
527 dSP; 840 dSP;
… …
536 849
537 XPUSHs (Nullsv); 850 XPUSHs (Nullsv);
538 /* this loop was inspired by pp_caller */ 851 /* this loop was inspired by pp_caller */
539 for (;;) 852 for (;;)
540 { 853 {
541 while (expect_true (cxix >= 0)) 854 while (ecb_expect_true (cxix >= 0))
542 { 855 {
543 PERL_CONTEXT *cx = &ccstk[cxix--]; 856 PERL_CONTEXT *cx = &ccstk[cxix--];
544 857
545 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 858 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
546 { 859 {
547 CV *cv = cx->blk_sub.cv; 860 CV *cv = cx->blk_sub.cv;
548 861
549 if (expect_true (CvDEPTH (cv))) 862 if (ecb_expect_true (CvDEPTH (cv)))
550 { 863 {
551 EXTEND (SP, 3); 864 EXTEND (SP, 3);
552 PUSHs ((SV *)CvPADLIST (cv)); 865 PUSHs ((SV *)CvPADLIST (cv));
553 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 866 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
554 PUSHs ((SV *)cv); 867 PUSHs ((SV *)cv);
… …
557 get_padlist (aTHX_ cv); 870 get_padlist (aTHX_ cv);
558 } 871 }
559 } 872 }
560 } 873 }
561 874
562 if (expect_true (top_si->si_type == PERLSI_MAIN)) 875 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
563 break; 876 break;
564 877
565 top_si = top_si->si_prev; 878 top_si = top_si->si_prev;
566 ccstk = top_si->si_cxstack; 879 ccstk = top_si->si_cxstack;
567 cxix = top_si->si_cxix; 880 cxix = top_si->si_cxix;
… …
569 882
570 PUTBACK; 883 PUTBACK;
571 } 884 }
572 885
573 /* allocate some space on the context stack for our purposes */ 886 /* allocate some space on the context stack for our purposes */
574 /* we manually unroll here, as usually 2 slots is enough */ 887 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
575 if (SLOT_COUNT >= 1) CXINC;
576 if (SLOT_COUNT >= 2) CXINC;
577 if (SLOT_COUNT >= 3) CXINC;
578 { 888 {
579 int i; 889 unsigned int i;
890
580 for (i = 3; i < SLOT_COUNT; ++i) 891 for (i = 0; i < SLOT_COUNT; ++i)
581 CXINC; 892 CXINC;
582 } 893
583 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 894 cxstack_ix -= SLOT_COUNT; /* undo allocation */
895 }
584 896
585 c->mainstack = PL_mainstack; 897 c->mainstack = PL_mainstack;
586 898
587 { 899 {
588 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 900 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
589 901
590 slot->defav = GvAV (PL_defgv); 902#if CORO_JIT
591 slot->defsv = DEFSV; 903 save_perl_slots (slot);
592 slot->errsv = ERRSV; 904#else
593 slot->irsgv = GvSV (irsgv);
594
595 #define VAR(name,type) slot->name = PL_ ## name; 905 #define VARx(name,expr,type) slot->name = expr;
596 # include "state.h" 906 #include "state.h"
597 #undef VAR 907#endif
598 } 908 }
599} 909}
600 910
601/* 911/*
602 * allocate various perl stacks. This is almost an exact copy 912 * allocate various perl stacks. This is almost an exact copy
603 * of perl.c:init_stacks, except that it uses less memory 913 * of perl.c:init_stacks, except that it uses less memory
604 * on the (sometimes correct) assumption that coroutines do 914 * on the (sometimes correct) assumption that coroutines do
605 * not usually need a lot of stackspace. 915 * not usually need a lot of stackspace.
606 */ 916 */
607#if CORO_PREFER_PERL_FUNCTIONS 917#if CORO_PREFER_PERL_FUNCTIONS
608# define coro_init_stacks init_stacks 918# define coro_init_stacks(thx) init_stacks ()
609#else 919#else
610static void 920static void
611coro_init_stacks (pTHX) 921coro_init_stacks (pTHX)
612{ 922{
613 PL_curstackinfo = new_stackinfo(32, 8); 923 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
614 PL_curstackinfo->si_type = PERLSI_MAIN; 924 PL_curstackinfo->si_type = PERLSI_MAIN;
615 PL_curstack = PL_curstackinfo->si_stack; 925 PL_curstack = PL_curstackinfo->si_stack;
616 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 926 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
617 927
618 PL_stack_base = AvARRAY(PL_curstack); 928 PL_stack_base = AvARRAY(PL_curstack);
… …
633#endif 943#endif
634 944
635 New(54,PL_scopestack,8,I32); 945 New(54,PL_scopestack,8,I32);
636 PL_scopestack_ix = 0; 946 PL_scopestack_ix = 0;
637 PL_scopestack_max = 8; 947 PL_scopestack_max = 8;
948#if HAS_SCOPESTACK_NAME
949 New(54,PL_scopestack_name,8,const char*);
950#endif
638 951
639 New(54,PL_savestack,24,ANY); 952 New(54,PL_savestack,24,ANY);
640 PL_savestack_ix = 0; 953 PL_savestack_ix = 0;
641 PL_savestack_max = 24; 954 PL_savestack_max = 24;
642 955
… …
670 } 983 }
671 984
672 Safefree (PL_tmps_stack); 985 Safefree (PL_tmps_stack);
673 Safefree (PL_markstack); 986 Safefree (PL_markstack);
674 Safefree (PL_scopestack); 987 Safefree (PL_scopestack);
988#if HAS_SCOPESTACK_NAME
989 Safefree (PL_scopestack_name);
990#endif
675 Safefree (PL_savestack); 991 Safefree (PL_savestack);
676#if !PERL_VERSION_ATLEAST (5,10,0) 992#if !PERL_VERSION_ATLEAST (5,10,0)
677 Safefree (PL_retstack); 993 Safefree (PL_retstack);
678#endif 994#endif
679} 995}
680 996
997#define CORO_RSS \
998 rss += sizeof (SYM (curstackinfo)); \
999 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
1000 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
1001 rss += SYM (tmps_max) * sizeof (SV *); \
1002 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
1003 rss += SYM (scopestack_max) * sizeof (I32); \
1004 rss += SYM (savestack_max) * sizeof (ANY);
1005
681static size_t 1006static size_t
682coro_rss (pTHX_ struct coro *coro) 1007coro_rss (pTHX_ struct coro *coro)
683{ 1008{
684 size_t rss = sizeof (*coro); 1009 size_t rss = sizeof (*coro);
685 1010
686 if (coro->mainstack) 1011 if (coro->mainstack)
687 { 1012 {
688 perl_slots tmp_slot;
689 perl_slots *slot;
690
691 if (coro->flags & CF_RUNNING) 1013 if (coro->flags & CF_RUNNING)
692 { 1014 {
693 slot = &tmp_slot; 1015 #define SYM(sym) PL_ ## sym
694 1016 CORO_RSS;
695 #define VAR(name,type) slot->name = PL_ ## name;
696 # include "state.h"
697 #undef VAR 1017 #undef SYM
698 } 1018 }
699 else 1019 else
700 slot = coro->slot;
701
702 if (slot)
703 { 1020 {
704 rss += sizeof (slot->curstackinfo); 1021 #define SYM(sym) coro->slot->sym
705 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 1022 CORO_RSS;
706 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 1023 #undef SYM
707 rss += slot->tmps_max * sizeof (SV *);
708 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
709 rss += slot->scopestack_max * sizeof (I32);
710 rss += slot->savestack_max * sizeof (ANY);
711
712#if !PERL_VERSION_ATLEAST (5,10,0)
713 rss += slot->retstack_max * sizeof (OP *);
714#endif
715 } 1024 }
716 } 1025 }
717 1026
718 return rss; 1027 return rss;
719} 1028}
… …
732#endif 1041#endif
733 1042
734/* 1043/*
735 * This overrides the default magic get method of %SIG elements. 1044 * This overrides the default magic get method of %SIG elements.
736 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1045 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
737 * and instead of tryign to save and restore the hash elements, we just provide 1046 * and instead of trying to save and restore the hash elements (extremely slow),
738 * readback here. 1047 * we just provide our own readback here.
739 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
740 * not expecting this to actually change the hook. This is a potential problem
741 * when a schedule happens then, but we ignore this.
742 */ 1048 */
743static int 1049static int ecb_cold
744coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1050coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
745{ 1051{
746 const char *s = MgPV_nolen_const (mg); 1052 const char *s = MgPV_nolen_const (mg);
747 1053
748 if (*s == '_') 1054 if (*s == '_')
749 { 1055 {
750 SV **svp = 0; 1056 SV **svp = 0;
751 1057
752 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1058 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
753 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1059 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
754 1060
755 if (svp) 1061 if (svp)
756 { 1062 {
757 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1063 SV *ssv;
1064
1065 if (!*svp)
1066 ssv = &PL_sv_undef;
1067 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1068 ssv = sv_2mortal (newRV_inc (*svp));
1069 else
1070 ssv = *svp;
1071
1072 sv_setsv (sv, ssv);
758 return 0; 1073 return 0;
759 } 1074 }
760 } 1075 }
761 1076
762 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1077 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
763} 1078}
764 1079
765static int 1080static int ecb_cold
766coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1081coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
767{ 1082{
768 const char *s = MgPV_nolen_const (mg); 1083 const char *s = MgPV_nolen_const (mg);
769 1084
770 if (*s == '_') 1085 if (*s == '_')
… …
784 } 1099 }
785 1100
786 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1101 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
787} 1102}
788 1103
789static int 1104static int ecb_cold
790coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1105coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
791{ 1106{
792 const char *s = MgPV_nolen_const (mg); 1107 const char *s = MgPV_nolen_const (mg);
793 1108
794 if (*s == '_') 1109 if (*s == '_')
… …
799 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1114 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
800 1115
801 if (svp) 1116 if (svp)
802 { 1117 {
803 SV *old = *svp; 1118 SV *old = *svp;
804 *svp = newSVsv (sv); 1119 *svp = SvOK (sv) ? newSVsv (sv) : 0;
805 SvREFCNT_dec (old); 1120 SvREFCNT_dec (old);
806 return 0; 1121 return 0;
807 } 1122 }
808 } 1123 }
809 1124
… …
821slf_check_nop (pTHX_ struct CoroSLF *frame) 1136slf_check_nop (pTHX_ struct CoroSLF *frame)
822{ 1137{
823 return 0; 1138 return 0;
824} 1139}
825 1140
826static UNOP coro_setup_op; 1141static int
1142slf_check_repeat (pTHX_ struct CoroSLF *frame)
1143{
1144 return 1;
1145}
827 1146
828static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1147static UNOP init_perl_op;
1148
1149ecb_noinline static void /* noinline to keep it out of the transfer fast path */
829coro_setup (pTHX_ struct coro *coro) 1150init_perl (pTHX_ struct coro *coro)
830{ 1151{
831 /* 1152 /*
832 * emulate part of the perl startup here. 1153 * emulate part of the perl startup here.
833 */ 1154 */
834 coro_init_stacks (aTHX); 1155 coro_init_stacks (aTHX);
835 1156
836 PL_runops = RUNOPS_DEFAULT; 1157 PL_runops = RUNOPS_DEFAULT;
837 PL_curcop = &PL_compiling; 1158 PL_curcop = &PL_compiling;
838 PL_in_eval = EVAL_NULL; 1159 PL_in_eval = EVAL_NULL;
839 PL_comppad = 0; 1160 PL_comppad = 0;
1161 PL_comppad_name = 0;
1162 PL_comppad_name_fill = 0;
1163 PL_comppad_name_floor = 0;
840 PL_curpm = 0; 1164 PL_curpm = 0;
841 PL_curpad = 0; 1165 PL_curpad = 0;
842 PL_localizing = 0; 1166 PL_localizing = 0;
843 PL_dirty = 0;
844 PL_restartop = 0; 1167 PL_restartop = 0;
845#if PERL_VERSION_ATLEAST (5,10,0) 1168#if PERL_VERSION_ATLEAST (5,10,0)
846 PL_parser = 0; 1169 PL_parser = 0;
847#endif 1170#endif
1171 PL_hints = 0;
848 1172
849 /* recreate the die/warn hooks */ 1173 /* recreate the die/warn hooks */
850 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1174 PL_diehook = SvREFCNT_inc (rv_diehook);
851 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1175 PL_warnhook = SvREFCNT_inc (rv_warnhook);
852 1176
853 GvSV (PL_defgv) = newSV (0); 1177 GvSV (PL_defgv) = newSV (0);
854 GvAV (PL_defgv) = coro->args; coro->args = 0; 1178 GvAV (PL_defgv) = coro->args; coro->args = 0;
855 GvSV (PL_errgv) = newSV (0); 1179 GvSV (PL_errgv) = newSV (0);
856 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1180 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1181 GvHV (PL_hintgv) = newHV ();
1182#if PERL_VERSION_ATLEAST (5,10,0)
1183 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1184#endif
857 PL_rs = newSVsv (GvSV (irsgv)); 1185 PL_rs = newSVsv (GvSV (irsgv));
858 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1186 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
859 1187
860 { 1188 {
861 dSP; 1189 dSP;
862 UNOP myop; 1190 UNOP myop;
863 1191
864 Zero (&myop, 1, UNOP); 1192 Zero (&myop, 1, UNOP);
865 myop.op_next = Nullop; 1193 myop.op_next = Nullop;
1194 myop.op_type = OP_ENTERSUB;
866 myop.op_flags = OPf_WANT_VOID; 1195 myop.op_flags = OPf_WANT_VOID;
867 1196
868 PUSHMARK (SP); 1197 PUSHMARK (SP);
869 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 1198 PUSHs ((SV *)coro->startcv);
870 PUTBACK; 1199 PUTBACK;
871 PL_op = (OP *)&myop; 1200 PL_op = (OP *)&myop;
872 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1201 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
873 SPAGAIN;
874 } 1202 }
875 1203
876 /* this newly created coroutine might be run on an existing cctx which most 1204 /* this newly created coroutine might be run on an existing cctx which most
877 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1205 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
878 */ 1206 */
879 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1207 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
880 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1208 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1209 slf_frame.destroy = 0;
881 1210
882 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1211 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
883 coro_setup_op.op_next = PL_op; 1212 init_perl_op.op_next = PL_op;
884 coro_setup_op.op_type = OP_CUSTOM; 1213 init_perl_op.op_type = OP_ENTERSUB;
885 coro_setup_op.op_ppaddr = pp_slf; 1214 init_perl_op.op_ppaddr = pp_slf;
886 /* no flags required, as an init function won't be called */ 1215 /* no flags etc. required, as an init function won't be called */
887 1216
888 PL_op = (OP *)&coro_setup_op; 1217 PL_op = (OP *)&init_perl_op;
889 1218
890 /* copy throw, in case it was set before coro_setup */ 1219 /* copy throw, in case it was set before init_perl */
891 CORO_THROW = coro->except; 1220 CORO_THROW = coro->except;
892}
893 1221
1222 SWAP_SVS (coro);
1223
1224 if (ecb_expect_false (enable_times))
1225 {
1226 coro_times_update ();
1227 coro_times_sub (coro);
1228 }
1229}
1230
894static void 1231static void
895coro_destruct (pTHX_ struct coro *coro) 1232coro_unwind_stacks (pTHX)
896{ 1233{
897 if (!IN_DESTRUCT) 1234 if (!IN_DESTRUCT)
898 { 1235 {
899 /* restore all saved variables and stuff */ 1236 /* restore all saved variables and stuff */
900 LEAVE_SCOPE (0); 1237 LEAVE_SCOPE (0);
… …
908 POPSTACK_TO (PL_mainstack); 1245 POPSTACK_TO (PL_mainstack);
909 1246
910 /* unwind main stack */ 1247 /* unwind main stack */
911 dounwind (-1); 1248 dounwind (-1);
912 } 1249 }
1250}
913 1251
914 SvREFCNT_dec (GvSV (PL_defgv)); 1252static void
915 SvREFCNT_dec (GvAV (PL_defgv)); 1253destroy_perl (pTHX_ struct coro *coro)
916 SvREFCNT_dec (GvSV (PL_errgv)); 1254{
917 SvREFCNT_dec (PL_defoutgv); 1255 SV *svf [9];
918 SvREFCNT_dec (PL_rs);
919 SvREFCNT_dec (GvSV (irsgv));
920 1256
921 SvREFCNT_dec (PL_diehook);
922 SvREFCNT_dec (PL_warnhook);
923 1257 {
924 SvREFCNT_dec (CORO_THROW); 1258 SV *old_current = SvRV (coro_current);
1259 struct coro *current = SvSTATE (old_current);
1260
1261 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1262
1263 save_perl (aTHX_ current);
1264
1265 /* this will cause transfer_check to croak on block*/
1266 SvRV_set (coro_current, (SV *)coro->hv);
1267
1268 load_perl (aTHX_ coro);
1269
1270 coro_unwind_stacks (aTHX);
1271
1272 /* restore swapped sv's */
1273 SWAP_SVS (coro);
1274
1275 coro_destruct_stacks (aTHX);
1276
1277 /* now save some sv's to be free'd later */
1278 svf [0] = GvSV (PL_defgv);
1279 svf [1] = (SV *)GvAV (PL_defgv);
1280 svf [2] = GvSV (PL_errgv);
1281 svf [3] = (SV *)PL_defoutgv;
1282 svf [4] = PL_rs;
1283 svf [5] = GvSV (irsgv);
1284 svf [6] = (SV *)GvHV (PL_hintgv);
1285 svf [7] = PL_diehook;
1286 svf [8] = PL_warnhook;
1287 assert (9 == sizeof (svf) / sizeof (*svf));
1288
1289 SvRV_set (coro_current, old_current);
1290
1291 load_perl (aTHX_ current);
1292 }
1293
1294 {
1295 unsigned int i;
1296
1297 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1298 SvREFCNT_dec (svf [i]);
1299
925 SvREFCNT_dec (coro->saved_deffh); 1300 SvREFCNT_dec (coro->saved_deffh);
926 SvREFCNT_dec (coro->rouse_cb); 1301 SvREFCNT_dec (coro->rouse_cb);
927 1302 SvREFCNT_dec (coro->invoke_cb);
928 coro_destruct_stacks (aTHX); 1303 SvREFCNT_dec (coro->invoke_av);
1304 SvREFCNT_dec (coro->on_enter_xs);
1305 SvREFCNT_dec (coro->on_leave_xs);
1306 }
929} 1307}
930 1308
931INLINE void 1309ecb_inline void
932free_coro_mortal (pTHX) 1310free_coro_mortal (pTHX)
933{ 1311{
934 if (expect_true (coro_mortal)) 1312 if (ecb_expect_true (coro_mortal))
935 { 1313 {
936 SvREFCNT_dec (coro_mortal); 1314 SvREFCNT_dec ((SV *)coro_mortal);
937 coro_mortal = 0; 1315 coro_mortal = 0;
938 } 1316 }
939} 1317}
940 1318
941static int 1319static int
942runops_trace (pTHX) 1320runops_trace (pTHX)
943{ 1321{
944 COP *oldcop = 0; 1322 COP *oldcop = 0;
945 int oldcxix = -2; 1323 int oldcxix = -2;
946 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
947 coro_cctx *cctx = coro->cctx;
948 1324
949 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1325 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
950 { 1326 {
951 PERL_ASYNC_CHECK (); 1327 PERL_ASYNC_CHECK ();
952 1328
953 if (cctx->flags & CC_TRACE_ALL) 1329 if (cctx_current->flags & CC_TRACE_ALL)
954 { 1330 {
955 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1331 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
956 { 1332 {
957 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1333 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
958 SV **bot, **top; 1334 SV **bot, **top;
959 AV *av = newAV (); /* return values */ 1335 AV *av = newAV (); /* return values */
960 SV **cb; 1336 SV **cb;
… …
997 1373
998 if (PL_curcop != &PL_compiling) 1374 if (PL_curcop != &PL_compiling)
999 { 1375 {
1000 SV **cb; 1376 SV **cb;
1001 1377
1002 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1378 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1003 { 1379 {
1004 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1380 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1005 1381
1006 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1382 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1007 { 1383 {
1008 runops_proc_t old_runops = PL_runops;
1009 dSP; 1384 dSP;
1010 GV *gv = CvGV (cx->blk_sub.cv); 1385 GV *gv = CvGV (cx->blk_sub.cv);
1011 SV *fullname = sv_2mortal (newSV (0)); 1386 SV *fullname = sv_2mortal (newSV (0));
1012 1387
1013 if (isGV (gv)) 1388 if (isGV (gv))
… …
1018 SAVETMPS; 1393 SAVETMPS;
1019 EXTEND (SP, 3); 1394 EXTEND (SP, 3);
1020 PUSHMARK (SP); 1395 PUSHMARK (SP);
1021 PUSHs (&PL_sv_yes); 1396 PUSHs (&PL_sv_yes);
1022 PUSHs (fullname); 1397 PUSHs (fullname);
1023 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1398 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1024 PUTBACK; 1399 PUTBACK;
1025 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1400 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1026 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1401 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1027 SPAGAIN; 1402 SPAGAIN;
1028 FREETMPS; 1403 FREETMPS;
… …
1031 } 1406 }
1032 1407
1033 oldcxix = cxstack_ix; 1408 oldcxix = cxstack_ix;
1034 } 1409 }
1035 1410
1036 if (cctx->flags & CC_TRACE_LINE) 1411 if (cctx_current->flags & CC_TRACE_LINE)
1037 { 1412 {
1038 dSP; 1413 dSP;
1039 1414
1040 PL_runops = RUNOPS_DEFAULT; 1415 PL_runops = RUNOPS_DEFAULT;
1041 ENTER; 1416 ENTER;
… …
1060 1435
1061 TAINT_NOT; 1436 TAINT_NOT;
1062 return 0; 1437 return 0;
1063} 1438}
1064 1439
1065static struct coro_cctx *cctx_ssl_cctx;
1066static struct CoroSLF cctx_ssl_frame; 1440static struct CoroSLF cctx_ssl_frame;
1067 1441
1068static void 1442static void
1069slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1443slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1070{ 1444{
1071 ta->prev = (struct coro *)cctx_ssl_cctx;
1072 ta->next = 0; 1445 ta->prev = 0;
1073} 1446}
1074 1447
1075static int 1448static int
1076slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1449slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1077{ 1450{
… …
1079 1452
1080 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1453 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1081} 1454}
1082 1455
1083/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1456/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1084static void NOINLINE 1457static void ecb_noinline
1085cctx_prepare (pTHX_ coro_cctx *cctx) 1458cctx_prepare (pTHX)
1086{ 1459{
1087 PL_top_env = &PL_start_env; 1460 PL_top_env = &PL_start_env;
1088 1461
1089 if (cctx->flags & CC_TRACE) 1462 if (cctx_current->flags & CC_TRACE)
1090 PL_runops = runops_trace; 1463 PL_runops = runops_trace;
1091 1464
1092 /* we already must be executing an SLF op, there is no other valid way 1465 /* we already must be executing an SLF op, there is no other valid way
1093 * that can lead to creation of a new cctx */ 1466 * that can lead to creation of a new cctx */
1094 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1467 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1095 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1468 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1096 1469
1097 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1470 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1098 cctx_ssl_cctx = cctx;
1099 cctx_ssl_frame = slf_frame; 1471 cctx_ssl_frame = slf_frame;
1100 1472
1101 slf_frame.prepare = slf_prepare_set_stacklevel; 1473 slf_frame.prepare = slf_prepare_set_stacklevel;
1102 slf_frame.check = slf_check_set_stacklevel; 1474 slf_frame.check = slf_check_set_stacklevel;
1103} 1475}
1104 1476
1105/* the tail of transfer: execute stuff we can only do after a transfer */ 1477/* the tail of transfer: execute stuff we can only do after a transfer */
1106INLINE void 1478ecb_inline void
1107transfer_tail (pTHX) 1479transfer_tail (pTHX)
1108{ 1480{
1109 free_coro_mortal (aTHX); 1481 free_coro_mortal (aTHX);
1482}
1483
1484/* try to exit the same way perl's main function would do */
1485/* we do not bother resetting the environment or other things *7
1486/* that are not, uhm, essential */
1487/* this obviously also doesn't work when perl is embedded */
1488static void ecb_noinline ecb_cold
1489perlish_exit (pTHX)
1490{
1491 int exitstatus = perl_destruct (PL_curinterp);
1492 perl_free (PL_curinterp);
1493 exit (exitstatus);
1110} 1494}
1111 1495
1112/* 1496/*
1113 * this is a _very_ stripped down perl interpreter ;) 1497 * this is a _very_ stripped down perl interpreter ;)
1114 */ 1498 */
… …
1126 /* normally we would need to skip the entersub here */ 1510 /* normally we would need to skip the entersub here */
1127 /* not doing so will re-execute it, which is exactly what we want */ 1511 /* not doing so will re-execute it, which is exactly what we want */
1128 /* PL_nop = PL_nop->op_next */ 1512 /* PL_nop = PL_nop->op_next */
1129 1513
1130 /* inject a fake subroutine call to cctx_init */ 1514 /* inject a fake subroutine call to cctx_init */
1131 cctx_prepare (aTHX_ (coro_cctx *)arg); 1515 cctx_prepare (aTHX);
1132 1516
1133 /* cctx_run is the alternative tail of transfer() */ 1517 /* cctx_run is the alternative tail of transfer() */
1134 transfer_tail (aTHX); 1518 transfer_tail (aTHX);
1135 1519
1136 /* somebody or something will hit me for both perl_run and PL_restartop */ 1520 /* somebody or something will hit me for both perl_run and PL_restartop */
1137 PL_restartop = PL_op; 1521 PL_restartop = PL_op;
1138 perl_run (PL_curinterp); 1522 perl_run (PL_curinterp);
1523 /*
1524 * Unfortunately, there is no way to get at the return values of the
1525 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1526 * runtime errors here, as this is just a random interpreter, not a thread.
1527 */
1139 1528
1140 /* 1529 /*
1141 * If perl-run returns we assume exit() was being called or the coro 1530 * If perl-run returns we assume exit() was being called or the coro
1142 * fell off the end, which seems to be the only valid (non-bug) 1531 * fell off the end, which seems to be the only valid (non-bug)
1143 * reason for perl_run to return. We try to exit by jumping to the 1532 * reason for perl_run to return. We try to mimic whatever perl is normally
1144 * bootstrap-time "top" top_env, as we cannot restore the "main" 1533 * doing in that case. YMMV.
1145 * coroutine as Coro has no such concept
1146 */ 1534 */
1147 PL_top_env = main_top_env; 1535 perlish_exit (aTHX);
1148 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1149 } 1536 }
1150} 1537}
1151 1538
1152static coro_cctx * 1539static coro_cctx *
1153cctx_new () 1540cctx_new (void)
1154{ 1541{
1155 coro_cctx *cctx; 1542 coro_cctx *cctx;
1156 1543
1157 ++cctx_count; 1544 ++cctx_count;
1158 New (0, cctx, 1, coro_cctx); 1545 New (0, cctx, 1, coro_cctx);
… …
1164 return cctx; 1551 return cctx;
1165} 1552}
1166 1553
1167/* create a new cctx only suitable as source */ 1554/* create a new cctx only suitable as source */
1168static coro_cctx * 1555static coro_cctx *
1169cctx_new_empty () 1556cctx_new_empty (void)
1170{ 1557{
1171 coro_cctx *cctx = cctx_new (); 1558 coro_cctx *cctx = cctx_new ();
1172 1559
1173 cctx->sptr = 0; 1560 cctx->stack.sptr = 0;
1174 coro_create (&cctx->cctx, 0, 0, 0, 0); 1561 coro_create (&cctx->cctx, 0, 0, 0, 0);
1175 1562
1176 return cctx; 1563 return cctx;
1177} 1564}
1178 1565
1179/* create a new cctx suitable as destination/running a perl interpreter */ 1566/* create a new cctx suitable as destination/running a perl interpreter */
1180static coro_cctx * 1567static coro_cctx *
1181cctx_new_run () 1568cctx_new_run (void)
1182{ 1569{
1183 coro_cctx *cctx = cctx_new (); 1570 coro_cctx *cctx = cctx_new ();
1184 void *stack_start;
1185 size_t stack_size;
1186 1571
1187#if HAVE_MMAP 1572 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1188 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1189 /* mmap supposedly does allocate-on-write for us */
1190 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1191
1192 if (cctx->sptr != (void *)-1)
1193 {
1194 #if CORO_STACKGUARD
1195 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1196 #endif
1197 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1198 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1199 cctx->flags |= CC_MAPPED;
1200 } 1573 {
1201 else
1202#endif
1203 {
1204 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1205 New (0, cctx->sptr, cctx_stacksize, long);
1206
1207 if (!cctx->sptr)
1208 {
1209 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1574 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1210 _exit (EXIT_FAILURE); 1575 _exit (EXIT_FAILURE);
1211 }
1212
1213 stack_start = cctx->sptr;
1214 stack_size = cctx->ssize;
1215 } 1576 }
1216 1577
1217 #if CORO_USE_VALGRIND
1218 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1219 #endif
1220
1221 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1578 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1222 1579
1223 return cctx; 1580 return cctx;
1224} 1581}
1225 1582
1226static void 1583static void
1227cctx_destroy (coro_cctx *cctx) 1584cctx_destroy (coro_cctx *cctx)
1228{ 1585{
1229 if (!cctx) 1586 if (!cctx)
1230 return; 1587 return;
1231 1588
1589 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1590
1232 --cctx_count; 1591 --cctx_count;
1233 coro_destroy (&cctx->cctx); 1592 coro_destroy (&cctx->cctx);
1234 1593
1235 /* coro_transfer creates new, empty cctx's */ 1594 coro_stack_free (&cctx->stack);
1236 if (cctx->sptr)
1237 {
1238 #if CORO_USE_VALGRIND
1239 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1240 #endif
1241
1242#if HAVE_MMAP
1243 if (cctx->flags & CC_MAPPED)
1244 munmap (cctx->sptr, cctx->ssize);
1245 else
1246#endif
1247 Safefree (cctx->sptr);
1248 }
1249 1595
1250 Safefree (cctx); 1596 Safefree (cctx);
1251} 1597}
1252 1598
1253/* wether this cctx should be destructed */ 1599/* wether this cctx should be destructed */
1254#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1600#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1255 1601
1256static coro_cctx * 1602static coro_cctx *
1257cctx_get (pTHX) 1603cctx_get (pTHX)
1258{ 1604{
1259 while (expect_true (cctx_first)) 1605 while (ecb_expect_true (cctx_first))
1260 { 1606 {
1261 coro_cctx *cctx = cctx_first; 1607 coro_cctx *cctx = cctx_first;
1262 cctx_first = cctx->next; 1608 cctx_first = cctx->next;
1263 --cctx_idle; 1609 --cctx_idle;
1264 1610
1265 if (expect_true (!CCTX_EXPIRED (cctx))) 1611 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1266 return cctx; 1612 return cctx;
1267 1613
1268 cctx_destroy (cctx); 1614 cctx_destroy (cctx);
1269 } 1615 }
1270 1616
… …
1272} 1618}
1273 1619
1274static void 1620static void
1275cctx_put (coro_cctx *cctx) 1621cctx_put (coro_cctx *cctx)
1276{ 1622{
1277 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1623 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1278 1624
1279 /* free another cctx if overlimit */ 1625 /* free another cctx if overlimit */
1280 if (expect_false (cctx_idle >= cctx_max_idle)) 1626 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1281 { 1627 {
1282 coro_cctx *first = cctx_first; 1628 coro_cctx *first = cctx_first;
1283 cctx_first = first->next; 1629 cctx_first = first->next;
1284 --cctx_idle; 1630 --cctx_idle;
1285 1631
… …
1296static void 1642static void
1297transfer_check (pTHX_ struct coro *prev, struct coro *next) 1643transfer_check (pTHX_ struct coro *prev, struct coro *next)
1298{ 1644{
1299 /* TODO: throwing up here is considered harmful */ 1645 /* TODO: throwing up here is considered harmful */
1300 1646
1301 if (expect_true (prev != next)) 1647 if (ecb_expect_true (prev != next))
1302 { 1648 {
1303 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1649 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1304 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1650 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1305 1651
1306 if (expect_false (next->flags & CF_RUNNING)) 1652 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1307 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1308
1309 if (expect_false (next->flags & CF_DESTROYED))
1310 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1653 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1311 1654
1312#if !PERL_VERSION_ATLEAST (5,10,0) 1655#if !PERL_VERSION_ATLEAST (5,10,0)
1313 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1656 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1314 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1657 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1315#endif 1658#endif
1316 } 1659 }
1317} 1660}
1318 1661
1319/* always use the TRANSFER macro */ 1662/* always use the TRANSFER macro */
1320static void NOINLINE /* noinline so we have a fixed stackframe */ 1663static void ecb_noinline /* noinline so we have a fixed stackframe */
1321transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1664transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1322{ 1665{
1323 dSTACKLEVEL; 1666 dSTACKLEVEL;
1324 1667
1325 /* sometimes transfer is only called to set idle_sp */ 1668 /* sometimes transfer is only called to set idle_sp */
1326 if (expect_false (!next)) 1669 if (ecb_expect_false (!prev))
1327 { 1670 {
1328 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1671 cctx_current->idle_sp = STACKLEVEL;
1329 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1672 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1330 } 1673 }
1331 else if (expect_true (prev != next)) 1674 else if (ecb_expect_true (prev != next))
1332 { 1675 {
1333 coro_cctx *prev__cctx; 1676 coro_cctx *cctx_prev;
1334 1677
1335 if (expect_false (prev->flags & CF_NEW)) 1678 if (ecb_expect_false (prev->flags & CF_NEW))
1336 { 1679 {
1337 /* create a new empty/source context */ 1680 /* create a new empty/source context */
1338 prev->cctx = cctx_new_empty ();
1339 prev->flags &= ~CF_NEW; 1681 prev->flags &= ~CF_NEW;
1340 prev->flags |= CF_RUNNING; 1682 prev->flags |= CF_RUNNING;
1341 } 1683 }
1342 1684
1343 prev->flags &= ~CF_RUNNING; 1685 prev->flags &= ~CF_RUNNING;
1344 next->flags |= CF_RUNNING; 1686 next->flags |= CF_RUNNING;
1345 1687
1346 /* first get rid of the old state */ 1688 /* first get rid of the old state */
1347 save_perl (aTHX_ prev); 1689 save_perl (aTHX_ prev);
1348 1690
1349 if (expect_false (next->flags & CF_NEW)) 1691 if (ecb_expect_false (next->flags & CF_NEW))
1350 { 1692 {
1351 /* need to start coroutine */ 1693 /* need to start coroutine */
1352 next->flags &= ~CF_NEW; 1694 next->flags &= ~CF_NEW;
1353 /* setup coroutine call */ 1695 /* setup coroutine call */
1354 coro_setup (aTHX_ next); 1696 init_perl (aTHX_ next);
1355 } 1697 }
1356 else 1698 else
1357 load_perl (aTHX_ next); 1699 load_perl (aTHX_ next);
1358 1700
1359 prev__cctx = prev->cctx;
1360
1361 /* possibly untie and reuse the cctx */ 1701 /* possibly untie and reuse the cctx */
1362 if (expect_true ( 1702 if (ecb_expect_true (
1363 prev__cctx->idle_sp == STACKLEVEL 1703 cctx_current->idle_sp == STACKLEVEL
1364 && !(prev__cctx->flags & CC_TRACE) 1704 && !(cctx_current->flags & CC_TRACE)
1365 && !force_cctx 1705 && !force_cctx
1366 )) 1706 ))
1367 { 1707 {
1368 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1708 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1369 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1709 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1370 1710
1371 prev->cctx = 0;
1372
1373 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1711 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1374 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1712 /* without this the next cctx_get might destroy the running cctx while still in use */
1375 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1713 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1376 if (!next->cctx) 1714 if (ecb_expect_true (!next->cctx))
1377 next->cctx = cctx_get (aTHX); 1715 next->cctx = cctx_get (aTHX);
1378 1716
1379 cctx_put (prev__cctx); 1717 cctx_put (cctx_current);
1380 } 1718 }
1719 else
1720 prev->cctx = cctx_current;
1381 1721
1382 ++next->usecount; 1722 ++next->usecount;
1383 1723
1384 if (expect_true (!next->cctx)) 1724 cctx_prev = cctx_current;
1385 next->cctx = cctx_get (aTHX); 1725 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1386 1726
1387 if (expect_false (prev__cctx != next->cctx)) 1727 next->cctx = 0;
1728
1729 if (ecb_expect_false (cctx_prev != cctx_current))
1388 { 1730 {
1389 prev__cctx->top_env = PL_top_env; 1731 cctx_prev->top_env = PL_top_env;
1390 PL_top_env = next->cctx->top_env; 1732 PL_top_env = cctx_current->top_env;
1391 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1733 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1392 } 1734 }
1393 1735
1394 transfer_tail (aTHX); 1736 transfer_tail (aTHX);
1395 } 1737 }
1396} 1738}
… …
1398#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1740#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1399#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1741#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1400 1742
1401/** high level stuff ********************************************************/ 1743/** high level stuff ********************************************************/
1402 1744
1745/* this function is actually Coro, not Coro::State, but we call it from here */
1746/* because it is convenient - but it hasn't been declared yet for that reason */
1403static int 1747static void
1748coro_call_on_destroy (pTHX_ struct coro *coro);
1749
1750static void
1404coro_state_destroy (pTHX_ struct coro *coro) 1751coro_state_destroy (pTHX_ struct coro *coro)
1405{ 1752{
1406 if (coro->flags & CF_DESTROYED) 1753 if (coro->flags & CF_ZOMBIE)
1407 return 0; 1754 return;
1408 1755
1409 if (coro->on_destroy)
1410 coro->on_destroy (aTHX_ coro); 1756 slf_destroy (aTHX_ coro);
1411 1757
1412 coro->flags |= CF_DESTROYED; 1758 coro->flags |= CF_ZOMBIE;
1413 1759
1414 if (coro->flags & CF_READY) 1760 if (coro->flags & CF_READY)
1415 { 1761 {
1416 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1762 /* reduce nready, as destroying a ready coro effectively unreadies it */
1417 /* alternative: look through all ready queues and remove the coro */ 1763 /* alternative: look through all ready queues and remove the coro */
1418 --coro_nready; 1764 --coro_nready;
1419 } 1765 }
1420 else 1766 else
1421 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1767 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1422 1768
1423 if (coro->mainstack && coro->mainstack != main_mainstack)
1424 {
1425 struct coro temp;
1426
1427 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1428
1429 save_perl (aTHX_ &temp);
1430 load_perl (aTHX_ coro);
1431
1432 coro_destruct (aTHX_ coro);
1433
1434 load_perl (aTHX_ &temp);
1435
1436 coro->slot = 0;
1437 }
1438
1439 cctx_destroy (coro->cctx);
1440 SvREFCNT_dec (coro->args);
1441
1442 if (coro->next) coro->next->prev = coro->prev; 1769 if (coro->next) coro->next->prev = coro->prev;
1443 if (coro->prev) coro->prev->next = coro->next; 1770 if (coro->prev) coro->prev->next = coro->next;
1444 if (coro == coro_first) coro_first = coro->next; 1771 if (coro == coro_first) coro_first = coro->next;
1445 1772
1446 return 1; 1773 if (coro->mainstack
1774 && coro->mainstack != main_mainstack
1775 && coro->slot
1776 && !PL_dirty)
1777 destroy_perl (aTHX_ coro);
1778
1779 cctx_destroy (coro->cctx);
1780 SvREFCNT_dec (coro->startcv);
1781 SvREFCNT_dec (coro->args);
1782 SvREFCNT_dec (coro->swap_sv);
1783 SvREFCNT_dec (CORO_THROW);
1784
1785 coro_call_on_destroy (aTHX_ coro);
1786
1787 /* more destruction mayhem in coro_state_free */
1447} 1788}
1448 1789
1449static int 1790static int
1450coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1791coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1451{ 1792{
1452 struct coro *coro = (struct coro *)mg->mg_ptr; 1793 struct coro *coro = (struct coro *)mg->mg_ptr;
1453 mg->mg_ptr = 0; 1794 mg->mg_ptr = 0;
1454 1795
1455 coro->hv = 0;
1456
1457 if (--coro->refcnt < 0)
1458 {
1459 coro_state_destroy (aTHX_ coro); 1796 coro_state_destroy (aTHX_ coro);
1797 SvREFCNT_dec (coro->on_destroy);
1798 SvREFCNT_dec (coro->status);
1799
1460 Safefree (coro); 1800 Safefree (coro);
1461 }
1462 1801
1463 return 0; 1802 return 0;
1464} 1803}
1465 1804
1466static int 1805static int ecb_cold
1467coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1806coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1468{ 1807{
1469 struct coro *coro = (struct coro *)mg->mg_ptr; 1808 /* called when perl clones the current process the slow way (windows process emulation) */
1470 1809 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1471 ++coro->refcnt; 1810 mg->mg_ptr = 0;
1811 mg->mg_virtual = 0;
1472 1812
1473 return 0; 1813 return 0;
1474} 1814}
1475 1815
1476static MGVTBL coro_state_vtbl = { 1816static MGVTBL coro_state_vtbl = {
… …
1499 1839
1500 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1840 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1501 TRANSFER (ta, 1); 1841 TRANSFER (ta, 1);
1502} 1842}
1503 1843
1504/*****************************************************************************/
1505/* gensub: simple closure generation utility */
1506
1507#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1508
1509/* create a closure from XS, returns a code reference */
1510/* the arg can be accessed via GENSUB_ARG from the callback */
1511/* the callback must use dXSARGS/XSRETURN */
1512static SV *
1513gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1514{
1515 CV *cv = (CV *)newSV (0);
1516
1517 sv_upgrade ((SV *)cv, SVt_PVCV);
1518
1519 CvANON_on (cv);
1520 CvISXSUB_on (cv);
1521 CvXSUB (cv) = xsub;
1522 GENSUB_ARG = arg;
1523
1524 return newRV_noinc ((SV *)cv);
1525}
1526
1527/** Coro ********************************************************************/ 1844/** Coro ********************************************************************/
1528 1845
1529INLINE void 1846ecb_inline void
1530coro_enq (pTHX_ struct coro *coro) 1847coro_enq (pTHX_ struct coro *coro)
1531{ 1848{
1532 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1849 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1533}
1534 1850
1535INLINE SV * 1851 SvREFCNT_inc_NN (coro->hv);
1852
1853 coro->next_ready = 0;
1854 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1855 ready [1] = coro;
1856}
1857
1858ecb_inline struct coro *
1536coro_deq (pTHX) 1859coro_deq (pTHX)
1537{ 1860{
1538 int prio; 1861 int prio;
1539 1862
1540 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1863 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1541 if (AvFILLp (coro_ready [prio]) >= 0) 1864 {
1542 return av_shift (coro_ready [prio]); 1865 struct coro **ready = coro_ready [prio];
1866
1867 if (ready [0])
1868 {
1869 struct coro *coro = ready [0];
1870 ready [0] = coro->next_ready;
1871 return coro;
1872 }
1873 }
1543 1874
1544 return 0; 1875 return 0;
1876}
1877
1878static void
1879invoke_sv_ready_hook_helper (void)
1880{
1881 dTHX;
1882 dSP;
1883
1884 ENTER;
1885 SAVETMPS;
1886
1887 PUSHMARK (SP);
1888 PUTBACK;
1889 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1890
1891 FREETMPS;
1892 LEAVE;
1545} 1893}
1546 1894
1547static int 1895static int
1548api_ready (pTHX_ SV *coro_sv) 1896api_ready (pTHX_ SV *coro_sv)
1549{ 1897{
1550 struct coro *coro;
1551 SV *sv_hook;
1552 void (*xs_hook)(void);
1553
1554 if (SvROK (coro_sv))
1555 coro_sv = SvRV (coro_sv);
1556
1557 coro = SvSTATE (coro_sv); 1898 struct coro *coro = SvSTATE (coro_sv);
1558 1899
1559 if (coro->flags & CF_READY) 1900 if (coro->flags & CF_READY)
1560 return 0; 1901 return 0;
1561 1902
1562 coro->flags |= CF_READY; 1903 coro->flags |= CF_READY;
1563 1904
1564 sv_hook = coro_nready ? 0 : coro_readyhook;
1565 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1566
1567 coro_enq (aTHX_ coro); 1905 coro_enq (aTHX_ coro);
1568 ++coro_nready;
1569 1906
1570 if (sv_hook) 1907 if (!coro_nready++)
1571 { 1908 if (coroapi.readyhook)
1572 dSP; 1909 coroapi.readyhook ();
1573
1574 ENTER;
1575 SAVETMPS;
1576
1577 PUSHMARK (SP);
1578 PUTBACK;
1579 call_sv (sv_hook, G_VOID | G_DISCARD);
1580
1581 FREETMPS;
1582 LEAVE;
1583 }
1584
1585 if (xs_hook)
1586 xs_hook ();
1587 1910
1588 return 1; 1911 return 1;
1589} 1912}
1590 1913
1591static int 1914static int
1592api_is_ready (pTHX_ SV *coro_sv) 1915api_is_ready (pTHX_ SV *coro_sv)
1593{ 1916{
1594 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1917 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1595} 1918}
1596 1919
1597INLINE void 1920/* expects to own a reference to next->hv */
1921ecb_inline void
1598prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1922prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1599{ 1923{
1600 SV *prev_sv, *next_sv;
1601
1602 for (;;)
1603 {
1604 next_sv = coro_deq (aTHX);
1605
1606 /* nothing to schedule: call the idle handler */
1607 if (expect_false (!next_sv))
1608 {
1609 dSP;
1610
1611 ENTER;
1612 SAVETMPS;
1613
1614 PUSHMARK (SP);
1615 PUTBACK;
1616 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1617
1618 FREETMPS;
1619 LEAVE;
1620 continue;
1621 }
1622
1623 ta->next = SvSTATE_hv (next_sv);
1624
1625 /* cannot transfer to destroyed coros, skip and look for next */
1626 if (expect_false (ta->next->flags & CF_DESTROYED))
1627 {
1628 SvREFCNT_dec (next_sv);
1629 /* coro_nready has already been taken care of by destroy */
1630 continue;
1631 }
1632
1633 --coro_nready;
1634 break;
1635 }
1636
1637 /* free this only after the transfer */
1638 prev_sv = SvRV (coro_current); 1924 SV *prev_sv = SvRV (coro_current);
1925
1639 ta->prev = SvSTATE_hv (prev_sv); 1926 ta->prev = SvSTATE_hv (prev_sv);
1927 ta->next = next;
1928
1640 TRANSFER_CHECK (*ta); 1929 TRANSFER_CHECK (*ta);
1641 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1930
1642 ta->next->flags &= ~CF_READY;
1643 SvRV_set (coro_current, next_sv); 1931 SvRV_set (coro_current, (SV *)next->hv);
1644 1932
1645 free_coro_mortal (aTHX); 1933 free_coro_mortal (aTHX);
1646 coro_mortal = prev_sv; 1934 coro_mortal = prev_sv;
1647} 1935}
1648 1936
1649INLINE void 1937static void
1938prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1939{
1940 for (;;)
1941 {
1942 struct coro *next = coro_deq (aTHX);
1943
1944 if (ecb_expect_true (next))
1945 {
1946 /* cannot transfer to destroyed coros, skip and look for next */
1947 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1948 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1949 else
1950 {
1951 next->flags &= ~CF_READY;
1952 --coro_nready;
1953
1954 prepare_schedule_to (aTHX_ ta, next);
1955 break;
1956 }
1957 }
1958 else
1959 {
1960 /* nothing to schedule: call the idle handler */
1961 if (SvROK (sv_idle)
1962 && SvOBJECT (SvRV (sv_idle)))
1963 {
1964 if (SvRV (sv_idle) == SvRV (coro_current))
1965 {
1966 require_pv ("Carp");
1967
1968 {
1969 dSP;
1970
1971 ENTER;
1972 SAVETMPS;
1973
1974 PUSHMARK (SP);
1975 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1976 PUTBACK;
1977 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1978
1979 FREETMPS;
1980 LEAVE;
1981 }
1982 }
1983
1984 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1985 api_ready (aTHX_ SvRV (sv_idle));
1986 --coro_nready;
1987 }
1988 else
1989 {
1990 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1991 dSP;
1992
1993 ENTER;
1994 SAVETMPS;
1995
1996 PUSHMARK (SP);
1997 PUTBACK;
1998 call_sv (sv_idle, G_VOID | G_DISCARD);
1999
2000 FREETMPS;
2001 LEAVE;
2002 }
2003 }
2004 }
2005}
2006
2007ecb_inline void
1650prepare_cede (pTHX_ struct coro_transfer_args *ta) 2008prepare_cede (pTHX_ struct coro_transfer_args *ta)
1651{ 2009{
1652 api_ready (aTHX_ coro_current); 2010 api_ready (aTHX_ coro_current);
1653 prepare_schedule (aTHX_ ta); 2011 prepare_schedule (aTHX_ ta);
1654} 2012}
1655 2013
1656INLINE void 2014ecb_inline void
1657prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2015prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1658{ 2016{
1659 SV *prev = SvRV (coro_current); 2017 SV *prev = SvRV (coro_current);
1660 2018
1661 if (coro_nready) 2019 if (coro_nready)
… …
1674 2032
1675 prepare_schedule (aTHX_ &ta); 2033 prepare_schedule (aTHX_ &ta);
1676 TRANSFER (ta, 1); 2034 TRANSFER (ta, 1);
1677} 2035}
1678 2036
2037static void
2038api_schedule_to (pTHX_ SV *coro_sv)
2039{
2040 struct coro_transfer_args ta;
2041 struct coro *next = SvSTATE (coro_sv);
2042
2043 SvREFCNT_inc_NN (coro_sv);
2044 prepare_schedule_to (aTHX_ &ta, next);
2045}
2046
1679static int 2047static int
1680api_cede (pTHX) 2048api_cede (pTHX)
1681{ 2049{
1682 struct coro_transfer_args ta; 2050 struct coro_transfer_args ta;
1683 2051
1684 prepare_cede (aTHX_ &ta); 2052 prepare_cede (aTHX_ &ta);
1685 2053
1686 if (expect_true (ta.prev != ta.next)) 2054 if (ecb_expect_true (ta.prev != ta.next))
1687 { 2055 {
1688 TRANSFER (ta, 1); 2056 TRANSFER (ta, 1);
1689 return 1; 2057 return 1;
1690 } 2058 }
1691 else 2059 else
… …
1710static void 2078static void
1711api_trace (pTHX_ SV *coro_sv, int flags) 2079api_trace (pTHX_ SV *coro_sv, int flags)
1712{ 2080{
1713 struct coro *coro = SvSTATE (coro_sv); 2081 struct coro *coro = SvSTATE (coro_sv);
1714 2082
2083 if (coro->flags & CF_RUNNING)
2084 croak ("cannot enable tracing on a running coroutine, caught");
2085
1715 if (flags & CC_TRACE) 2086 if (flags & CC_TRACE)
1716 { 2087 {
1717 if (!coro->cctx) 2088 if (!coro->cctx)
1718 coro->cctx = cctx_new_run (); 2089 coro->cctx = cctx_new_run ();
1719 else if (!(coro->cctx->flags & CC_TRACE)) 2090 else if (!(coro->cctx->flags & CC_TRACE))
1720 croak ("cannot enable tracing on coroutine with custom stack,"); 2091 croak ("cannot enable tracing on coroutine with custom stack, caught");
1721 2092
1722 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2093 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1723 } 2094 }
1724 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2095 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1725 { 2096 {
… …
1730 else 2101 else
1731 coro->slot->runops = RUNOPS_DEFAULT; 2102 coro->slot->runops = RUNOPS_DEFAULT;
1732 } 2103 }
1733} 2104}
1734 2105
2106static void
2107coro_push_av (pTHX_ AV *av, I32 gimme_v)
2108{
2109 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2110 {
2111 dSP;
2112
2113 if (gimme_v == G_SCALAR)
2114 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2115 else
2116 {
2117 int i;
2118 EXTEND (SP, AvFILLp (av) + 1);
2119
2120 for (i = 0; i <= AvFILLp (av); ++i)
2121 PUSHs (AvARRAY (av)[i]);
2122 }
2123
2124 PUTBACK;
2125 }
2126}
2127
2128static void
2129coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2130{
2131 if (!coro->on_destroy)
2132 coro->on_destroy = newAV ();
2133
2134 av_push (coro->on_destroy, cb);
2135}
2136
2137static void
2138slf_destroy_join (pTHX_ struct CoroSLF *frame)
2139{
2140 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2141}
2142
2143static int
2144slf_check_join (pTHX_ struct CoroSLF *frame)
2145{
2146 struct coro *coro = (struct coro *)frame->data;
2147
2148 if (!coro->status)
2149 return 1;
2150
2151 frame->destroy = 0;
2152
2153 coro_push_av (aTHX_ coro->status, GIMME_V);
2154
2155 SvREFCNT_dec ((SV *)coro->hv);
2156
2157 return 0;
2158}
2159
2160static void
2161slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2162{
2163 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2164
2165 if (items > 1)
2166 croak ("join called with too many arguments");
2167
2168 if (coro->status)
2169 frame->prepare = prepare_nop;
2170 else
2171 {
2172 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2173 frame->prepare = prepare_schedule;
2174 }
2175
2176 frame->check = slf_check_join;
2177 frame->destroy = slf_destroy_join;
2178 frame->data = (void *)coro;
2179 SvREFCNT_inc (coro->hv);
2180}
2181
2182static void
2183coro_call_on_destroy (pTHX_ struct coro *coro)
2184{
2185 AV *od = coro->on_destroy;
2186
2187 if (!od)
2188 return;
2189
2190 coro->on_destroy = 0;
2191 sv_2mortal ((SV *)od);
2192
2193 while (AvFILLp (od) >= 0)
2194 {
2195 SV *cb = sv_2mortal (av_pop (od));
2196
2197 /* coro hv's (and only hv's at the moment) are supported as well */
2198 if (SvSTATEhv_p (aTHX_ cb))
2199 api_ready (aTHX_ cb);
2200 else
2201 {
2202 dSP; /* don't disturb outer sp */
2203 PUSHMARK (SP);
2204
2205 if (coro->status)
2206 {
2207 PUTBACK;
2208 coro_push_av (aTHX_ coro->status, G_ARRAY);
2209 SPAGAIN;
2210 }
2211
2212 PUTBACK;
2213 call_sv (cb, G_VOID | G_DISCARD);
2214 }
2215 }
2216}
2217
2218static void
2219coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2220{
2221 AV *av;
2222
2223 if (coro->status)
2224 {
2225 av = coro->status;
2226 av_clear (av);
2227 }
2228 else
2229 av = coro->status = newAV ();
2230
2231 /* items are actually not so common, so optimise for this case */
2232 if (items)
2233 {
2234 int i;
2235
2236 av_extend (av, items - 1);
2237
2238 for (i = 0; i < items; ++i)
2239 av_push (av, SvREFCNT_inc_NN (arg [i]));
2240 }
2241}
2242
2243static void
2244slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2245{
2246 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2247 api_ready (aTHX_ sv_manager);
2248
2249 frame->prepare = prepare_schedule;
2250 frame->check = slf_check_repeat;
2251
2252 /* as a minor optimisation, we could unwind all stacks here */
2253 /* but that puts extra pressure on pp_slf, and is not worth much */
2254 /*coro_unwind_stacks (aTHX);*/
2255}
2256
2257static void
2258slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2259{
2260 HV *coro_hv = (HV *)SvRV (coro_current);
2261
2262 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2263 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2264}
2265
2266static void
2267slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2268{
2269 HV *coro_hv;
2270 struct coro *coro;
2271
2272 if (items <= 0)
2273 croak ("Coro::cancel called without coro object,");
2274
2275 coro = SvSTATE (arg [0]);
2276 coro_hv = coro->hv;
2277
2278 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2279
2280 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2281 {
2282 /* coro currently busy cancelling something, so just notify it */
2283 coro->slf_frame.data = (void *)coro;
2284
2285 frame->prepare = prepare_nop;
2286 frame->check = slf_check_nop;
2287 }
2288 else if (coro_hv == (HV *)SvRV (coro_current))
2289 {
2290 /* cancelling the current coro is allowed, and equals terminate */
2291 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2292 }
2293 else
2294 {
2295 struct coro *self = SvSTATE_current;
2296
2297 if (!self)
2298 croak ("Coro::cancel called outside of thread content,");
2299
2300 /* otherwise we cancel directly, purely for speed reasons
2301 * unfortunately, this requires some magic trickery, as
2302 * somebody else could cancel us, so we have to fight the cancellation.
2303 * this is ugly, and hopefully fully worth the extra speed.
2304 * besides, I can't get the slow-but-safe version working...
2305 */
2306 slf_frame.data = 0;
2307 self->flags |= CF_NOCANCEL;
2308 coro_state_destroy (aTHX_ coro);
2309 self->flags &= ~CF_NOCANCEL;
2310
2311 if (slf_frame.data)
2312 {
2313 /* while we were busy we have been cancelled, so terminate */
2314 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2315 }
2316 else
2317 {
2318 frame->prepare = prepare_nop;
2319 frame->check = slf_check_nop;
2320 }
2321 }
2322}
2323
2324static int
2325slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2326{
2327 frame->prepare = 0;
2328 coro_unwind_stacks (aTHX);
2329
2330 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2331
2332 return 1;
2333}
2334
2335static int
2336safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2337{
2338 if (coro->cctx)
2339 croak ("coro inside C callback, unable to cancel at this time, caught");
2340
2341 if (coro->flags & CF_NEW)
2342 {
2343 coro_set_status (aTHX_ coro, arg, items);
2344 coro_state_destroy (aTHX_ coro);
2345 }
2346 else
2347 {
2348 if (!coro->slf_frame.prepare)
2349 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2350
2351 slf_destroy (aTHX_ coro);
2352
2353 coro_set_status (aTHX_ coro, arg, items);
2354 coro->slf_frame.prepare = prepare_nop;
2355 coro->slf_frame.check = slf_check_safe_cancel;
2356
2357 api_ready (aTHX_ (SV *)coro->hv);
2358 }
2359
2360 return 1;
2361}
2362
2363/*****************************************************************************/
2364/* async pool handler */
2365
2366static int
2367slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2368{
2369 HV *hv = (HV *)SvRV (coro_current);
2370 struct coro *coro = (struct coro *)frame->data;
2371
2372 if (!coro->invoke_cb)
2373 return 1; /* loop till we have invoke */
2374 else
2375 {
2376 hv_store (hv, "desc", sizeof ("desc") - 1,
2377 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2378
2379 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2380
2381 {
2382 dSP;
2383 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2384 PUTBACK;
2385 }
2386
2387 SvREFCNT_dec (GvAV (PL_defgv));
2388 GvAV (PL_defgv) = coro->invoke_av;
2389 coro->invoke_av = 0;
2390
2391 return 0;
2392 }
2393}
2394
2395static void
2396slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2397{
2398 HV *hv = (HV *)SvRV (coro_current);
2399 struct coro *coro = SvSTATE_hv ((SV *)hv);
2400
2401 if (ecb_expect_true (coro->saved_deffh))
2402 {
2403 /* subsequent iteration */
2404 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2405 coro->saved_deffh = 0;
2406
2407 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2408 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2409 {
2410 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2411 return;
2412 }
2413 else
2414 {
2415 av_clear (GvAV (PL_defgv));
2416 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2417
2418 coro->prio = 0;
2419
2420 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2421 api_trace (aTHX_ coro_current, 0);
2422
2423 frame->prepare = prepare_schedule;
2424 av_push (av_async_pool, SvREFCNT_inc (hv));
2425 }
2426 }
2427 else
2428 {
2429 /* first iteration, simply fall through */
2430 frame->prepare = prepare_nop;
2431 }
2432
2433 frame->check = slf_check_pool_handler;
2434 frame->data = (void *)coro;
2435}
2436
1735/*****************************************************************************/ 2437/*****************************************************************************/
1736/* rouse callback */ 2438/* rouse callback */
1737 2439
1738#define CORO_MAGIC_type_rouse PERL_MAGIC_ext 2440#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1739 2441
1740static void 2442static void
1741coro_rouse_callback (pTHX_ CV *cv) 2443coro_rouse_callback (pTHX_ CV *cv)
1742{ 2444{
1743 dXSARGS; 2445 dXSARGS;
1744 SV *data = (SV *)GENSUB_ARG; 2446 SV *data = (SV *)S_GENSUB_ARG;
1745 2447
1746 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2448 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1747 { 2449 {
1748 /* first call, set args */ 2450 /* first call, set args */
1749 int i; 2451 SV *coro = SvRV (data);
1750 AV *av = newAV (); 2452 AV *av = newAV ();
1751 SV *coro = SvRV (data);
1752 2453
1753 SvRV_set (data, (SV *)av); 2454 SvRV_set (data, (SV *)av);
1754 api_ready (aTHX_ coro);
1755 SvREFCNT_dec (coro);
1756 2455
1757 /* better take a full copy of the arguments */ 2456 /* better take a full copy of the arguments */
1758 while (items--) 2457 while (items--)
1759 av_store (av, items, newSVsv (ST (items))); 2458 av_store (av, items, newSVsv (ST (items)));
2459
2460 api_ready (aTHX_ coro);
2461 SvREFCNT_dec (coro);
1760 } 2462 }
1761 2463
1762 XSRETURN_EMPTY; 2464 XSRETURN_EMPTY;
1763} 2465}
1764 2466
1765static int 2467static int
1766slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2468slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1767{ 2469{
1768 SV *data = (SV *)frame->data; 2470 SV *data = (SV *)frame->data;
1769 2471
1770 if (CORO_THROW) 2472 if (CORO_THROW)
1771 return 0; 2473 return 0;
1772 2474
1773 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2475 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1774 return 1; 2476 return 1;
… …
1781 2483
1782 EXTEND (SP, AvFILLp (av) + 1); 2484 EXTEND (SP, AvFILLp (av) + 1);
1783 for (i = 0; i <= AvFILLp (av); ++i) 2485 for (i = 0; i <= AvFILLp (av); ++i)
1784 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2486 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1785 2487
1786 /* we have stolen the elements, so ste length to zero and free */ 2488 /* we have stolen the elements, so set length to zero and free */
1787 AvFILLp (av) = -1; 2489 AvFILLp (av) = -1;
1788 av_undef (av); 2490 av_undef (av);
1789 2491
1790 PUTBACK; 2492 PUTBACK;
1791 } 2493 }
… …
1810 cb = sv_2mortal (coro->rouse_cb); 2512 cb = sv_2mortal (coro->rouse_cb);
1811 coro->rouse_cb = 0; 2513 coro->rouse_cb = 0;
1812 } 2514 }
1813 2515
1814 if (!SvROK (cb) 2516 if (!SvROK (cb)
1815 || SvTYPE (SvRV (cb)) != SVt_PVCV 2517 || SvTYPE (SvRV (cb)) != SVt_PVCV
1816 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2518 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1817 croak ("Coro::rouse_wait called with illegal callback argument,"); 2519 croak ("Coro::rouse_wait called with illegal callback argument,");
1818 2520
1819 { 2521 {
1820 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2522 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1821 SV *data = (SV *)GENSUB_ARG; 2523 SV *data = (SV *)S_GENSUB_ARG;
1822 2524
1823 frame->data = (void *)data; 2525 frame->data = (void *)data;
1824 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2526 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1825 frame->check = slf_check_rouse_wait; 2527 frame->check = slf_check_rouse_wait;
1826 } 2528 }
… …
1830coro_new_rouse_cb (pTHX) 2532coro_new_rouse_cb (pTHX)
1831{ 2533{
1832 HV *hv = (HV *)SvRV (coro_current); 2534 HV *hv = (HV *)SvRV (coro_current);
1833 struct coro *coro = SvSTATE_hv (hv); 2535 struct coro *coro = SvSTATE_hv (hv);
1834 SV *data = newRV_inc ((SV *)hv); 2536 SV *data = newRV_inc ((SV *)hv);
1835 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2537 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1836 2538
1837 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2539 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1838 SvREFCNT_dec (data); /* magicext increases the refcount */ 2540 SvREFCNT_dec (data); /* magicext increases the refcount */
1839 2541
1840 SvREFCNT_dec (coro->rouse_cb); 2542 SvREFCNT_dec (coro->rouse_cb);
… …
1898 frame->prepare = prepare_schedule; 2600 frame->prepare = prepare_schedule;
1899 frame->check = slf_check_nop; 2601 frame->check = slf_check_nop;
1900} 2602}
1901 2603
1902static void 2604static void
2605slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2606{
2607 struct coro *next = (struct coro *)slf_frame.data;
2608
2609 SvREFCNT_inc_NN (next->hv);
2610 prepare_schedule_to (aTHX_ ta, next);
2611}
2612
2613static void
2614slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2615{
2616 if (!items)
2617 croak ("Coro::schedule_to expects a coroutine argument, caught");
2618
2619 frame->data = (void *)SvSTATE (arg [0]);
2620 frame->prepare = slf_prepare_schedule_to;
2621 frame->check = slf_check_nop;
2622}
2623
2624static void
2625slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2626{
2627 api_ready (aTHX_ SvRV (coro_current));
2628
2629 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2630}
2631
2632static void
1903slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2633slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1904{ 2634{
1905 frame->prepare = prepare_cede; 2635 frame->prepare = prepare_cede;
1906 frame->check = slf_check_nop; 2636 frame->check = slf_check_nop;
1907} 2637}
… …
1909static void 2639static void
1910slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2640slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1911{ 2641{
1912 frame->prepare = prepare_cede_notself; 2642 frame->prepare = prepare_cede_notself;
1913 frame->check = slf_check_nop; 2643 frame->check = slf_check_nop;
2644}
2645
2646/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2647static void
2648slf_destroy (pTHX_ struct coro *coro)
2649{
2650 struct CoroSLF frame = coro->slf_frame;
2651
2652 /*
2653 * The on_destroy below most likely is from an SLF call.
2654 * Since by definition the SLF call will not finish when we destroy
2655 * the coro, we will have to force-finish it here, otherwise
2656 * cleanup functions cannot call SLF functions.
2657 */
2658 coro->slf_frame.prepare = 0;
2659
2660 /* this callback is reserved for slf functions needing to do cleanup */
2661 if (frame.destroy && frame.prepare && !PL_dirty)
2662 frame.destroy (aTHX_ &frame);
1914} 2663}
1915 2664
1916/* 2665/*
1917 * these not obviously related functions are all rolled into one 2666 * these not obviously related functions are all rolled into one
1918 * function to increase chances that they all will call transfer with the same 2667 * function to increase chances that they all will call transfer with the same
… …
1925 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2674 I32 checkmark; /* mark SP to see how many elements check has pushed */
1926 2675
1927 /* set up the slf frame, unless it has already been set-up */ 2676 /* set up the slf frame, unless it has already been set-up */
1928 /* the latter happens when a new coro has been started */ 2677 /* the latter happens when a new coro has been started */
1929 /* or when a new cctx was attached to an existing coroutine */ 2678 /* or when a new cctx was attached to an existing coroutine */
1930 if (expect_true (!slf_frame.prepare)) 2679 if (ecb_expect_true (!slf_frame.prepare))
1931 { 2680 {
1932 /* first iteration */ 2681 /* first iteration */
1933 dSP; 2682 dSP;
1934 SV **arg = PL_stack_base + TOPMARK + 1; 2683 SV **arg = PL_stack_base + TOPMARK + 1;
1935 int items = SP - arg; /* args without function object */ 2684 int items = SP - arg; /* args without function object */
… …
1976 while (slf_frame.check (aTHX_ &slf_frame)); 2725 while (slf_frame.check (aTHX_ &slf_frame));
1977 2726
1978 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2727 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1979 2728
1980 /* exception handling */ 2729 /* exception handling */
1981 if (expect_false (CORO_THROW)) 2730 if (ecb_expect_false (CORO_THROW))
1982 { 2731 {
1983 SV *exception = sv_2mortal (CORO_THROW); 2732 SV *exception = sv_2mortal (CORO_THROW);
1984 2733
1985 CORO_THROW = 0; 2734 CORO_THROW = 0;
1986 sv_setsv (ERRSV, exception); 2735 sv_setsv (ERRSV, exception);
1987 croak (0); 2736 croak (0);
1988 } 2737 }
1989 2738
1990 /* return value handling - mostly like entersub */ 2739 /* return value handling - mostly like entersub */
1991 /* make sure we put something on the stack in scalar context */ 2740 /* make sure we put something on the stack in scalar context */
1992 if (GIMME_V == G_SCALAR) 2741 if (GIMME_V == G_SCALAR
2742 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
1993 { 2743 {
1994 dSP; 2744 dSP;
1995 SV **bot = PL_stack_base + checkmark; 2745 SV **bot = PL_stack_base + checkmark;
1996 2746
1997 if (sp == bot) /* too few, push undef */ 2747 if (sp == bot) /* too few, push undef */
1998 bot [1] = &PL_sv_undef; 2748 bot [1] = &PL_sv_undef;
1999 else if (sp != bot + 1) /* too many, take last one */ 2749 else /* too many, take last one */
2000 bot [1] = *sp; 2750 bot [1] = *sp;
2001 2751
2002 SP = bot + 1; 2752 SP = bot + 1;
2003 2753
2004 PUTBACK; 2754 PUTBACK;
… …
2037 if (PL_op->op_flags & OPf_STACKED) 2787 if (PL_op->op_flags & OPf_STACKED)
2038 { 2788 {
2039 if (items > slf_arga) 2789 if (items > slf_arga)
2040 { 2790 {
2041 slf_arga = items; 2791 slf_arga = items;
2042 free (slf_argv); 2792 Safefree (slf_argv);
2043 slf_argv = malloc (slf_arga * sizeof (SV *)); 2793 New (0, slf_argv, slf_arga, SV *);
2044 } 2794 }
2045 2795
2046 slf_argc = items; 2796 slf_argc = items;
2047 2797
2048 for (i = 0; i < items; ++i) 2798 for (i = 0; i < items; ++i)
… …
2050 } 2800 }
2051 else 2801 else
2052 slf_argc = 0; 2802 slf_argc = 0;
2053 2803
2054 PL_op->op_ppaddr = pp_slf; 2804 PL_op->op_ppaddr = pp_slf;
2055 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2805 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2056 2806
2057 PL_op = (OP *)&slf_restore; 2807 PL_op = (OP *)&slf_restore;
2808}
2809
2810/*****************************************************************************/
2811/* dynamic wind */
2812
2813static void
2814on_enterleave_call (pTHX_ SV *cb)
2815{
2816 dSP;
2817
2818 PUSHSTACK;
2819
2820 PUSHMARK (SP);
2821 PUTBACK;
2822 call_sv (cb, G_VOID | G_DISCARD);
2823 SPAGAIN;
2824
2825 POPSTACK;
2826}
2827
2828static SV *
2829coro_avp_pop_and_free (pTHX_ AV **avp)
2830{
2831 AV *av = *avp;
2832 SV *res = av_pop (av);
2833
2834 if (AvFILLp (av) < 0)
2835 {
2836 *avp = 0;
2837 SvREFCNT_dec (av);
2838 }
2839
2840 return res;
2841}
2842
2843static void
2844coro_pop_on_enter (pTHX_ void *coro)
2845{
2846 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2847 SvREFCNT_dec (cb);
2848}
2849
2850static void
2851coro_pop_on_leave (pTHX_ void *coro)
2852{
2853 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2854 on_enterleave_call (aTHX_ sv_2mortal (cb));
2855}
2856
2857static void
2858enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
2859{
2860 if (!hook)
2861 return;
2862
2863 if (!*avp)
2864 {
2865 *avp = newAV ();
2866 AvREAL_off (*avp);
2867 }
2868
2869 av_push (*avp, (SV *)hook);
2870 av_push (*avp, (SV *)arg);
2871}
2872
2873static void
2874enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
2875{
2876 AV *av = *avp;
2877 int i;
2878
2879 if (!av)
2880 return;
2881
2882 for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
2883 if (AvARRAY (av)[i] == (SV *)hook)
2884 {
2885 if (execute)
2886 hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
2887
2888 memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
2889 av_pop (av);
2890 av_pop (av);
2891 break;
2892 }
2893
2894 if (AvFILLp (av) >= 0)
2895 {
2896 *avp = 0;
2897 SvREFCNT_dec_NN (av);
2898 }
2899}
2900
2901static void
2902api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2903{
2904 struct coro *coro = SvSTATE (coro_sv);
2905
2906 if (SvSTATE_current == coro)
2907 if (enter)
2908 enter (aTHX_ enter_arg);
2909
2910 enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
2911 enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
2912}
2913
2914static void
2915api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
2916{
2917 struct coro *coro = SvSTATE (coro_sv);
2918
2919 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2920 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
2921}
2922
2923static void
2924savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
2925{
2926 struct coro *coro = SvSTATE_current;
2927
2928 enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
2929}
2930
2931static void
2932savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
2933{
2934 struct coro *coro = SvSTATE_current;
2935
2936 enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
2937}
2938
2939static void
2940api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
2941{
2942 api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
2943
2944 /* this ought to be much cheaper than malloc + a single destructor call */
2945 if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
2946 if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2058} 2947}
2059 2948
2060/*****************************************************************************/ 2949/*****************************************************************************/
2061/* PerlIO::cede */ 2950/* PerlIO::cede */
2062 2951
… …
2064{ 2953{
2065 PerlIOBuf base; 2954 PerlIOBuf base;
2066 NV next, every; 2955 NV next, every;
2067} PerlIOCede; 2956} PerlIOCede;
2068 2957
2069static IV 2958static IV ecb_cold
2070PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2959PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2071{ 2960{
2072 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2961 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2073 2962
2074 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2963 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2075 self->next = nvtime () + self->every; 2964 self->next = nvtime () + self->every;
2076 2965
2077 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2966 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2078} 2967}
2079 2968
2080static SV * 2969static SV * ecb_cold
2081PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2970PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2082{ 2971{
2083 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2972 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2084 2973
2085 return newSVnv (self->every); 2974 return newSVnv (self->every);
… …
2136/* Coro::Semaphore & Coro::Signal */ 3025/* Coro::Semaphore & Coro::Signal */
2137 3026
2138static SV * 3027static SV *
2139coro_waitarray_new (pTHX_ int count) 3028coro_waitarray_new (pTHX_ int count)
2140{ 3029{
2141 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3030 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2142 AV *av = newAV (); 3031 AV *av = newAV ();
2143 SV **ary; 3032 SV **ary;
2144 3033
2145 /* unfortunately, building manually saves memory */ 3034 /* unfortunately, building manually saves memory */
2146 Newx (ary, 2, SV *); 3035 Newx (ary, 2, SV *);
2147 AvALLOC (av) = ary; 3036 AvALLOC (av) = ary;
3037#if PERL_VERSION_ATLEAST (5,10,0)
2148 AvARRAY (av) = ary; 3038 AvARRAY (av) = ary;
3039#else
3040 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
3041 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
3042 SvPVX ((SV *)av) = (char *)ary;
3043#endif
2149 AvMAX (av) = 1; 3044 AvMAX (av) = 1;
2150 AvFILLp (av) = 0; 3045 AvFILLp (av) = 0;
2151 ary [0] = newSViv (count); 3046 ary [0] = newSViv (count);
2152 3047
2153 return newRV_noinc ((SV *)av); 3048 return newRV_noinc ((SV *)av);
… …
2173 AvARRAY (av)[0] = AvARRAY (av)[1]; 3068 AvARRAY (av)[0] = AvARRAY (av)[1];
2174 AvARRAY (av)[1] = count_sv; 3069 AvARRAY (av)[1] = count_sv;
2175 cb = av_shift (av); 3070 cb = av_shift (av);
2176 3071
2177 if (SvOBJECT (cb)) 3072 if (SvOBJECT (cb))
3073 {
2178 api_ready (aTHX_ cb); 3074 api_ready (aTHX_ cb);
2179 else 3075 --count;
2180 croak ("callbacks not yet supported"); 3076 }
3077 else if (SvTYPE (cb) == SVt_PVCV)
3078 {
3079 dSP;
3080 PUSHMARK (SP);
3081 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3082 PUTBACK;
3083 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3084 }
2181 3085
2182 SvREFCNT_dec (cb); 3086 SvREFCNT_dec_NN (cb);
2183
2184 --count;
2185 } 3087 }
2186} 3088}
2187 3089
2188static void 3090static void
2189coro_semaphore_on_destroy (pTHX_ struct coro *coro) 3091coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2190{ 3092{
2191 /* call $sem->adjust (0) to possibly wake up some other waiters */ 3093 /* call $sem->adjust (0) to possibly wake up some other waiters */
2192 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 3094 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2193} 3095}
2194 3096
2195static int 3097static int
2196slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 3098slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2197{ 3099{
2198 AV *av = (AV *)frame->data; 3100 AV *av = (AV *)frame->data;
2199 SV *count_sv = AvARRAY (av)[0]; 3101 SV *count_sv = AvARRAY (av)[0];
3102 SV *coro_hv = SvRV (coro_current);
3103
3104 frame->destroy = 0;
2200 3105
2201 /* if we are about to throw, don't actually acquire the lock, just throw */ 3106 /* if we are about to throw, don't actually acquire the lock, just throw */
2202 if (CORO_THROW) 3107 if (ecb_expect_false (CORO_THROW))
3108 {
3109 /* we still might be responsible for the semaphore, so wake up others */
3110 coro_semaphore_adjust (aTHX_ av, 0);
3111
2203 return 0; 3112 return 0;
3113 }
2204 else if (SvIVX (count_sv) > 0) 3114 else if (SvIVX (count_sv) > 0)
2205 { 3115 {
2206 SvSTATE_current->on_destroy = 0;
2207
2208 if (acquire) 3116 if (acquire)
2209 SvIVX (count_sv) = SvIVX (count_sv) - 1; 3117 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2210 else 3118 else
2211 coro_semaphore_adjust (aTHX_ av, 0); 3119 coro_semaphore_adjust (aTHX_ av, 0);
2212 3120
… …
2216 { 3124 {
2217 int i; 3125 int i;
2218 /* if we were woken up but can't down, we look through the whole */ 3126 /* if we were woken up but can't down, we look through the whole */
2219 /* waiters list and only add us if we aren't in there already */ 3127 /* waiters list and only add us if we aren't in there already */
2220 /* this avoids some degenerate memory usage cases */ 3128 /* this avoids some degenerate memory usage cases */
2221 3129 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2222 for (i = 1; i <= AvFILLp (av); ++i)
2223 if (AvARRAY (av)[i] == SvRV (coro_current)) 3130 if (AvARRAY (av)[i] == coro_hv)
2224 return 1; 3131 return 1;
2225 3132
2226 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3133 av_push (av, SvREFCNT_inc (coro_hv));
2227 return 1; 3134 return 1;
2228 } 3135 }
2229} 3136}
2230 3137
2231static int 3138static int
… …
2254 { 3161 {
2255 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3162 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2256 3163
2257 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3164 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2258 frame->prepare = prepare_schedule; 3165 frame->prepare = prepare_schedule;
2259
2260 /* to avoid race conditions when a woken-up coro gets terminated */ 3166 /* to avoid race conditions when a woken-up coro gets terminated */
2261 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3167 /* we arrange for a temporary on_destroy that calls adjust (0) */
2262 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3168 frame->destroy = coro_semaphore_destroy;
2263 } 3169 }
2264} 3170}
2265 3171
2266static void 3172static void
2267slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3173slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2271} 3177}
2272 3178
2273static void 3179static void
2274slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3180slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2275{ 3181{
3182 if (items >= 2)
3183 {
3184 /* callback form */
3185 AV *av = (AV *)SvRV (arg [0]);
3186 SV *cb_cv = s_get_cv_croak (arg [1]);
3187
3188 av_push (av, SvREFCNT_inc_NN (cb_cv));
3189
3190 if (SvIVX (AvARRAY (av)[0]) > 0)
3191 coro_semaphore_adjust (aTHX_ av, 0);
3192
3193 frame->prepare = prepare_nop;
3194 frame->check = slf_check_nop;
3195 }
3196 else
3197 {
2276 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); 3198 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2277 frame->check = slf_check_semaphore_wait; 3199 frame->check = slf_check_semaphore_wait;
3200 }
2278} 3201}
2279 3202
2280/* signal */ 3203/* signal */
2281 3204
2282static void 3205static void
… …
2294 AvARRAY (av)[0] = AvARRAY (av)[1]; 3217 AvARRAY (av)[0] = AvARRAY (av)[1];
2295 AvARRAY (av)[1] = cb; 3218 AvARRAY (av)[1] = cb;
2296 3219
2297 cb = av_shift (av); 3220 cb = av_shift (av);
2298 3221
3222 if (SvTYPE (cb) == SVt_PVCV)
3223 {
3224 dSP;
3225 PUSHMARK (SP);
3226 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3227 PUTBACK;
3228 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3229 }
3230 else
3231 {
2299 api_ready (aTHX_ cb); 3232 api_ready (aTHX_ cb);
2300 sv_setiv (cb, 0); /* signal waiter */ 3233 sv_setiv (cb, 0); /* signal waiter */
3234 }
3235
2301 SvREFCNT_dec (cb); 3236 SvREFCNT_dec_NN (cb);
2302 3237
2303 --count; 3238 --count;
2304 } 3239 }
2305} 3240}
2306 3241
… …
2314static void 3249static void
2315slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3250slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2316{ 3251{
2317 AV *av = (AV *)SvRV (arg [0]); 3252 AV *av = (AV *)SvRV (arg [0]);
2318 3253
3254 if (items >= 2)
3255 {
3256 SV *cb_cv = s_get_cv_croak (arg [1]);
3257 av_push (av, SvREFCNT_inc_NN (cb_cv));
3258
2319 if (SvIVX (AvARRAY (av)[0])) 3259 if (SvIVX (AvARRAY (av)[0]))
3260 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3261
3262 frame->prepare = prepare_nop;
3263 frame->check = slf_check_nop;
3264 }
3265 else if (SvIVX (AvARRAY (av)[0]))
2320 { 3266 {
2321 SvIVX (AvARRAY (av)[0]) = 0; 3267 SvIVX (AvARRAY (av)[0]) = 0;
2322 frame->prepare = prepare_nop; 3268 frame->prepare = prepare_nop;
2323 frame->check = slf_check_nop; 3269 frame->check = slf_check_nop;
2324 } 3270 }
2325 else 3271 else
2326 { 3272 {
2327 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3273 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2328 3274
2329 av_push (av, waiter); 3275 av_push (av, waiter);
2330 3276
2331 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3277 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2332 frame->prepare = prepare_schedule; 3278 frame->prepare = prepare_schedule;
… …
2350 3296
2351static void 3297static void
2352coro_aio_callback (pTHX_ CV *cv) 3298coro_aio_callback (pTHX_ CV *cv)
2353{ 3299{
2354 dXSARGS; 3300 dXSARGS;
2355 AV *state = (AV *)GENSUB_ARG; 3301 AV *state = (AV *)S_GENSUB_ARG;
2356 SV *coro = av_pop (state); 3302 SV *coro = av_pop (state);
2357 SV *data_sv = newSV (sizeof (struct io_state)); 3303 SV *data_sv = newSV (sizeof (struct io_state));
2358 3304
2359 av_extend (state, items); 3305 av_extend (state, items - 1);
2360 3306
2361 sv_upgrade (data_sv, SVt_PV); 3307 sv_upgrade (data_sv, SVt_PV);
2362 SvCUR_set (data_sv, sizeof (struct io_state)); 3308 SvCUR_set (data_sv, sizeof (struct io_state));
2363 SvPOK_only (data_sv); 3309 SvPOK_only (data_sv);
2364 3310
… …
2380 } 3326 }
2381 3327
2382 av_push (state, data_sv); 3328 av_push (state, data_sv);
2383 3329
2384 api_ready (aTHX_ coro); 3330 api_ready (aTHX_ coro);
2385 SvREFCNT_dec (coro); 3331 SvREFCNT_dec_NN (coro);
2386 SvREFCNT_dec ((AV *)state); 3332 SvREFCNT_dec_NN ((AV *)state);
2387} 3333}
2388 3334
2389static int 3335static int
2390slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3336slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2391{ 3337{
… …
2396 /* it quickly returns */ 3342 /* it quickly returns */
2397 if (CORO_THROW) 3343 if (CORO_THROW)
2398 return 0; 3344 return 0;
2399 3345
2400 /* one element that is an RV? repeat! */ 3346 /* one element that is an RV? repeat! */
2401 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3347 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2402 return 1; 3348 return 1;
2403 3349
2404 /* restore status */ 3350 /* restore status */
2405 { 3351 {
2406 SV *data_sv = av_pop (state); 3352 SV *data_sv = av_pop (state);
… …
2409 errno = data->errorno; 3355 errno = data->errorno;
2410 PL_laststype = data->laststype; 3356 PL_laststype = data->laststype;
2411 PL_laststatval = data->laststatval; 3357 PL_laststatval = data->laststatval;
2412 PL_statcache = data->statcache; 3358 PL_statcache = data->statcache;
2413 3359
2414 SvREFCNT_dec (data_sv); 3360 SvREFCNT_dec_NN (data_sv);
2415 } 3361 }
2416 3362
2417 /* push result values */ 3363 /* push result values */
2418 { 3364 {
2419 dSP; 3365 dSP;
… …
2445 dSP; 3391 dSP;
2446 3392
2447 static SV *prio_cv; 3393 static SV *prio_cv;
2448 static SV *prio_sv; 3394 static SV *prio_sv;
2449 3395
2450 if (expect_false (!prio_cv)) 3396 if (ecb_expect_false (!prio_cv))
2451 { 3397 {
2452 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3398 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2453 prio_sv = newSViv (0); 3399 prio_sv = newSViv (0);
2454 } 3400 }
2455 3401
… …
2474 3420
2475 for (i = 0; i < items; ++i) 3421 for (i = 0; i < items; ++i)
2476 PUSHs (arg [i]); 3422 PUSHs (arg [i]);
2477 3423
2478 /* now push the callback closure */ 3424 /* now push the callback closure */
2479 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3425 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2480 3426
2481 /* now call the AIO function - we assume our request is uncancelable */ 3427 /* now call the AIO function - we assume our request is uncancelable */
2482 PUTBACK; 3428 PUTBACK;
2483 call_sv ((SV *)req, G_VOID | G_DISCARD); 3429 call_sv ((SV *)req, G_VOID | G_DISCARD);
2484 } 3430 }
2485 3431
2486 /* now that the requets is going, we loop toll we have a result */ 3432 /* now that the request is going, we loop till we have a result */
2487 frame->data = (void *)state; 3433 frame->data = (void *)state;
2488 frame->prepare = prepare_schedule; 3434 frame->prepare = prepare_schedule;
2489 frame->check = slf_check_aio_req; 3435 frame->check = slf_check_aio_req;
2490} 3436}
2491 3437
… …
2499 XSRETURN_EMPTY; 3445 XSRETURN_EMPTY;
2500} 3446}
2501 3447
2502/*****************************************************************************/ 3448/*****************************************************************************/
2503 3449
3450#if CORO_CLONE
3451# include "clone.c"
3452#endif
3453
3454/*****************************************************************************/
3455
3456static SV *
3457coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3458{
3459 SV *coro_sv;
3460 struct coro *coro;
3461 MAGIC *mg;
3462 HV *hv;
3463 SV *cb;
3464 int i;
3465
3466 if (argc > 0)
3467 {
3468 cb = s_get_cv_croak (argv [0]);
3469
3470 if (!is_coro)
3471 {
3472 if (CvISXSUB (cb))
3473 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3474
3475 if (!CvROOT (cb))
3476 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3477 }
3478 }
3479
3480 Newz (0, coro, 1, struct coro);
3481 coro->args = newAV ();
3482 coro->flags = CF_NEW;
3483
3484 if (coro_first) coro_first->prev = coro;
3485 coro->next = coro_first;
3486 coro_first = coro;
3487
3488 coro->hv = hv = newHV ();
3489 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3490 mg->mg_flags |= MGf_DUP;
3491 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3492
3493 if (argc > 0)
3494 {
3495 av_extend (coro->args, argc + is_coro - 1);
3496
3497 if (is_coro)
3498 {
3499 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3500 cb = (SV *)cv_coro_run;
3501 }
3502
3503 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3504
3505 for (i = 1; i < argc; i++)
3506 av_push (coro->args, newSVsv (argv [i]));
3507 }
3508
3509 return coro_sv;
3510}
3511
3512#ifndef __cplusplus
3513ecb_cold XS(boot_Coro__State);
3514#endif
3515
3516#if CORO_JIT
3517
3518static void ecb_noinline ecb_cold
3519pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3520{
3521 dSP;
3522 AV *av = newAV ();
3523
3524 av_store (av, 3, newSVuv (d));
3525 av_store (av, 2, newSVuv (c));
3526 av_store (av, 1, newSVuv (b));
3527 av_store (av, 0, newSVuv (a));
3528
3529 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3530
3531 PUTBACK;
3532}
3533
3534static void ecb_noinline ecb_cold
3535jit_init (pTHX)
3536{
3537 dSP;
3538 SV *load, *save;
3539 char *map_base;
3540 char *load_ptr, *save_ptr;
3541 STRLEN load_len, save_len, map_len;
3542 int count;
3543
3544 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3545
3546 PUSHMARK (SP);
3547 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3548 #include "state.h"
3549 count = call_pv ("Coro::State::_jit", G_ARRAY);
3550 SPAGAIN;
3551
3552 save = POPs; save_ptr = SvPVbyte (save, save_len);
3553 load = POPs; load_ptr = SvPVbyte (load, load_len);
3554
3555 map_len = load_len + save_len + 16;
3556
3557 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3558
3559 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3560
3561 load_perl_slots = (load_save_perl_slots_type)map_base;
3562 memcpy (map_base, load_ptr, load_len);
3563
3564 map_base += (load_len + 15) & ~15;
3565
3566 save_perl_slots = (load_save_perl_slots_type)map_base;
3567 memcpy (map_base, save_ptr, save_len);
3568
3569 /* we are good citizens and try to make the page read-only, so the evil evil */
3570 /* hackers might have it a bit more difficult */
3571 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3572
3573 PUTBACK;
3574 eval_pv ("undef &Coro::State::_jit", 1);
3575}
3576
3577#endif
3578
2504MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3579MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2505 3580
2506PROTOTYPES: DISABLE 3581PROTOTYPES: DISABLE
2507 3582
2508BOOT: 3583BOOT:
2509{ 3584{
3585#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3586#include "state.h"
2510#ifdef USE_ITHREADS 3587#ifdef USE_ITHREADS
2511# if CORO_PTHREAD 3588# if CORO_PTHREAD
2512 coro_thx = PERL_GET_CONTEXT; 3589 coro_thx = PERL_GET_CONTEXT;
2513# endif 3590# endif
2514#endif 3591#endif
2515 BOOT_PAGESIZE; 3592 /* perl defines these to check for existance first, but why it doesn't */
3593 /* just create them one at init time is not clear to me, except for */
3594 /* programs trying to delete them, but... */
3595 /* anyway, we declare this as invalid and make sure they are initialised here */
3596 DEFSV;
3597 ERRSV;
3598
3599 cctx_current = cctx_new_empty ();
2516 3600
2517 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3601 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2518 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3602 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2519 3603
2520 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3604 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2521 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3605 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
2522 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; 3606 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
2523 3607
2524 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
2525 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); 3608 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
2526 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); 3609 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
2527 3610
2528 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 3611 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
2529 3612
… …
2540 3623
2541 { 3624 {
2542 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3625 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2543 3626
2544 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3627 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2545 hv_store_ent (PL_custom_op_names, slf, 3628 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2546 newSVpv ("coro_slf", 0), 0);
2547 3629
2548 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3630 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2549 hv_store_ent (PL_custom_op_descs, slf, 3631 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2550 newSVpv ("coro schedule like function", 0), 0);
2551 } 3632 }
2552 3633
2553 coroapi.ver = CORO_API_VERSION; 3634 coroapi.ver = CORO_API_VERSION;
2554 coroapi.rev = CORO_API_REVISION; 3635 coroapi.rev = CORO_API_REVISION;
2555 3636
… …
2560 coroapi.prepare_nop = prepare_nop; 3641 coroapi.prepare_nop = prepare_nop;
2561 coroapi.prepare_schedule = prepare_schedule; 3642 coroapi.prepare_schedule = prepare_schedule;
2562 coroapi.prepare_cede = prepare_cede; 3643 coroapi.prepare_cede = prepare_cede;
2563 coroapi.prepare_cede_notself = prepare_cede_notself; 3644 coroapi.prepare_cede_notself = prepare_cede_notself;
2564 3645
2565 { 3646 time_init (aTHX);
2566 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2567 3647
2568 if (!svp) croak ("Time::HiRes is required");
2569 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2570
2571 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2572 }
2573
2574 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3648 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3649#if CORO_JIT
3650 PUTBACK;
3651 jit_init (aTHX);
3652 SPAGAIN;
3653#endif
2575} 3654}
2576 3655
2577SV * 3656SV *
2578new (char *klass, ...) 3657new (SV *klass, ...)
3658 ALIAS:
3659 Coro::new = 1
2579 CODE: 3660 CODE:
2580{ 3661 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2581 struct coro *coro; 3662 OUTPUT:
2582 MAGIC *mg;
2583 HV *hv;
2584 int i;
2585
2586 Newz (0, coro, 1, struct coro);
2587 coro->args = newAV ();
2588 coro->flags = CF_NEW;
2589
2590 if (coro_first) coro_first->prev = coro;
2591 coro->next = coro_first;
2592 coro_first = coro;
2593
2594 coro->hv = hv = newHV ();
2595 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2596 mg->mg_flags |= MGf_DUP;
2597 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2598
2599 av_extend (coro->args, items - 1);
2600 for (i = 1; i < items; i++)
2601 av_push (coro->args, newSVsv (ST (i)));
2602}
2603 OUTPUT:
2604 RETVAL 3663 RETVAL
2605 3664
2606void 3665void
2607transfer (...) 3666transfer (...)
2608 PROTOTYPE: $$ 3667 PROTOTYPE: $$
2609 CODE: 3668 CODE:
2610 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3669 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2611 3670
2612bool 3671SV *
2613_destroy (SV *coro_sv) 3672clone (Coro::State coro)
2614 CODE: 3673 CODE:
2615 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 3674{
3675#if CORO_CLONE
3676 struct coro *ncoro = coro_clone (aTHX_ coro);
3677 MAGIC *mg;
3678 /* TODO: too much duplication */
3679 ncoro->hv = newHV ();
3680 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3681 mg->mg_flags |= MGf_DUP;
3682 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3683#else
3684 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3685#endif
3686}
2616 OUTPUT: 3687 OUTPUT:
2617 RETVAL 3688 RETVAL
2618
2619void
2620_exit (int code)
2621 PROTOTYPE: $
2622 CODE:
2623 _exit (code);
2624 3689
2625int 3690int
2626cctx_stacksize (int new_stacksize = 0) 3691cctx_stacksize (int new_stacksize = 0)
2627 PROTOTYPE: ;$ 3692 PROTOTYPE: ;$
2628 CODE: 3693 CODE:
… …
2664void 3729void
2665list () 3730list ()
2666 PROTOTYPE: 3731 PROTOTYPE:
2667 PPCODE: 3732 PPCODE:
2668{ 3733{
2669 struct coro *coro; 3734 struct coro *coro;
2670 for (coro = coro_first; coro; coro = coro->next) 3735 for (coro = coro_first; coro; coro = coro->next)
2671 if (coro->hv) 3736 if (coro->hv)
2672 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3737 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2673} 3738}
2674 3739
… …
2678 eval = 1 3743 eval = 1
2679 CODE: 3744 CODE:
2680{ 3745{
2681 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3746 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2682 { 3747 {
2683 struct coro temp; 3748 struct coro *current = SvSTATE_current;
3749 struct CoroSLF slf_save;
2684 3750
2685 if (!(coro->flags & CF_RUNNING)) 3751 if (current != coro)
2686 { 3752 {
2687 PUTBACK; 3753 PUTBACK;
2688 save_perl (aTHX_ &temp); 3754 save_perl (aTHX_ current);
2689 load_perl (aTHX_ coro); 3755 load_perl (aTHX_ coro);
3756 /* the coro is most likely in an active SLF call.
3757 * while not strictly required (the code we execute is
3758 * not allowed to call any SLF functions), it's cleaner
3759 * to reinitialise the slf_frame and restore it later.
3760 * This might one day allow us to actually do SLF calls
3761 * from code executed here.
3762 */
3763 slf_save = slf_frame;
3764 slf_frame.prepare = 0;
3765 SPAGAIN;
2690 } 3766 }
2691 3767
2692 {
2693 dSP;
2694 ENTER;
2695 SAVETMPS;
2696 PUTBACK;
2697 PUSHSTACK; 3768 PUSHSTACK;
3769
2698 PUSHMARK (SP); 3770 PUSHMARK (SP);
3771 PUTBACK;
2699 3772
2700 if (ix) 3773 if (ix)
2701 eval_sv (coderef, 0); 3774 eval_sv (coderef, 0);
2702 else 3775 else
2703 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3776 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2704 3777
2705 POPSTACK; 3778 POPSTACK;
2706 SPAGAIN; 3779 SPAGAIN;
2707 FREETMPS;
2708 LEAVE;
2709 PUTBACK;
2710 }
2711 3780
2712 if (!(coro->flags & CF_RUNNING)) 3781 if (current != coro)
2713 { 3782 {
3783 PUTBACK;
3784 slf_frame = slf_save;
2714 save_perl (aTHX_ coro); 3785 save_perl (aTHX_ coro);
2715 load_perl (aTHX_ &temp); 3786 load_perl (aTHX_ current);
2716 SPAGAIN; 3787 SPAGAIN;
2717 } 3788 }
2718 } 3789 }
2719} 3790}
2720 3791
… …
2723 PROTOTYPE: $ 3794 PROTOTYPE: $
2724 ALIAS: 3795 ALIAS:
2725 is_ready = CF_READY 3796 is_ready = CF_READY
2726 is_running = CF_RUNNING 3797 is_running = CF_RUNNING
2727 is_new = CF_NEW 3798 is_new = CF_NEW
2728 is_destroyed = CF_DESTROYED 3799 is_destroyed = CF_ZOMBIE
3800 is_zombie = CF_ZOMBIE
3801 is_suspended = CF_SUSPENDED
2729 CODE: 3802 CODE:
2730 RETVAL = boolSV (coro->flags & ix); 3803 RETVAL = boolSV (coro->flags & ix);
2731 OUTPUT: 3804 OUTPUT:
2732 RETVAL 3805 RETVAL
2733 3806
2734void 3807void
2735throw (Coro::State self, SV *throw = &PL_sv_undef) 3808throw (SV *self, SV *exception = &PL_sv_undef)
2736 PROTOTYPE: $;$ 3809 PROTOTYPE: $;$
2737 CODE: 3810 CODE:
2738{ 3811{
3812 struct coro *coro = SvSTATE (self);
2739 struct coro *current = SvSTATE_current; 3813 struct coro *current = SvSTATE_current;
2740 SV **throwp = self == current ? &CORO_THROW : &self->except; 3814 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2741 SvREFCNT_dec (*throwp); 3815 SvREFCNT_dec (*exceptionp);
2742 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3816 SvGETMAGIC (exception);
3817 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3818
3819 api_ready (aTHX_ self);
2743} 3820}
2744 3821
2745void 3822void
2746api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3823api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2747 PROTOTYPE: $;$ 3824 PROTOTYPE: $;$
… …
2749 3826
2750SV * 3827SV *
2751has_cctx (Coro::State coro) 3828has_cctx (Coro::State coro)
2752 PROTOTYPE: $ 3829 PROTOTYPE: $
2753 CODE: 3830 CODE:
2754 RETVAL = boolSV (!!coro->cctx); 3831 /* maybe manage the running flag differently */
3832 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2755 OUTPUT: 3833 OUTPUT:
2756 RETVAL 3834 RETVAL
2757 3835
2758int 3836int
2759is_traced (Coro::State coro) 3837is_traced (Coro::State coro)
… …
2779 3857
2780void 3858void
2781force_cctx () 3859force_cctx ()
2782 PROTOTYPE: 3860 PROTOTYPE:
2783 CODE: 3861 CODE:
2784 SvSTATE_current->cctx->idle_sp = 0; 3862 cctx_current->idle_sp = 0;
2785 3863
2786void 3864void
2787swap_defsv (Coro::State self) 3865swap_defsv (Coro::State self)
2788 PROTOTYPE: $ 3866 PROTOTYPE: $
2789 ALIAS: 3867 ALIAS:
… …
2797 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3875 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2798 3876
2799 SV *tmp = *src; *src = *dst; *dst = tmp; 3877 SV *tmp = *src; *src = *dst; *dst = tmp;
2800 } 3878 }
2801 3879
3880void
3881cancel (Coro::State self)
3882 CODE:
3883 coro_state_destroy (aTHX_ self);
3884
3885SV *
3886enable_times (int enabled = enable_times)
3887 CODE:
3888{
3889 RETVAL = boolSV (enable_times);
3890
3891 if (enabled != enable_times)
3892 {
3893 enable_times = enabled;
3894
3895 coro_times_update ();
3896 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3897 }
3898}
3899 OUTPUT:
3900 RETVAL
3901
3902void
3903times (Coro::State self)
3904 PPCODE:
3905{
3906 struct coro *current = SvSTATE (coro_current);
3907
3908 if (ecb_expect_false (current == self))
3909 {
3910 coro_times_update ();
3911 coro_times_add (SvSTATE (coro_current));
3912 }
3913
3914 EXTEND (SP, 2);
3915 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3916 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3917
3918 if (ecb_expect_false (current == self))
3919 coro_times_sub (SvSTATE (coro_current));
3920}
3921
3922void
3923swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3924 CODE:
3925{
3926 struct coro *current = SvSTATE_current;
3927
3928 if (current == coro)
3929 SWAP_SVS (current);
3930
3931 if (!coro->swap_sv)
3932 coro->swap_sv = newAV ();
3933
3934 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3935 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3936
3937 if (current == coro)
3938 SWAP_SVS (current);
3939}
3940
2802 3941
2803MODULE = Coro::State PACKAGE = Coro 3942MODULE = Coro::State PACKAGE = Coro
2804 3943
2805BOOT: 3944BOOT:
2806{ 3945{
2807 int i; 3946 if (SVt_LAST > 32)
3947 croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
2808 3948
2809 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2810 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3949 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2811 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3950 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2812 3951 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2813 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3952 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2814 SvREADONLY_on (coro_current); 3953 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3954 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3955 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3956 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3957
3958 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3959 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3960 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3961 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
2815 3962
2816 coro_stash = gv_stashpv ("Coro", TRUE); 3963 coro_stash = gv_stashpv ("Coro", TRUE);
2817 3964
2818 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3965 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2819 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3966 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2820 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3967 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2821 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3968 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2822 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3969 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2823 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3970 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2824
2825 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2826 coro_ready[i] = newAV ();
2827 3971
2828 { 3972 {
2829 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3973 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2830 3974
2831 coroapi.schedule = api_schedule; 3975 coroapi.schedule = api_schedule;
3976 coroapi.schedule_to = api_schedule_to;
2832 coroapi.cede = api_cede; 3977 coroapi.cede = api_cede;
2833 coroapi.cede_notself = api_cede_notself; 3978 coroapi.cede_notself = api_cede_notself;
2834 coroapi.ready = api_ready; 3979 coroapi.ready = api_ready;
2835 coroapi.is_ready = api_is_ready; 3980 coroapi.is_ready = api_is_ready;
2836 coroapi.nready = coro_nready; 3981 coroapi.nready = coro_nready;
2837 coroapi.current = coro_current; 3982 coroapi.current = coro_current;
2838 3983
3984 coroapi.enterleave_hook = api_enterleave_hook;
3985 coroapi.enterleave_unhook = api_enterleave_unhook;
3986 coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
3987
2839 /*GCoroAPI = &coroapi;*/ 3988 /*GCoroAPI = &coroapi;*/
2840 sv_setiv (sv, (IV)&coroapi); 3989 sv_setiv (sv, (IV)&coroapi);
2841 SvREADONLY_on (sv); 3990 SvREADONLY_on (sv);
2842 } 3991 }
2843} 3992}
2844 3993
3994SV *
3995async (...)
3996 PROTOTYPE: &@
3997 CODE:
3998 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3999 api_ready (aTHX_ RETVAL);
4000 OUTPUT:
4001 RETVAL
4002
4003void
4004_destroy (Coro::State coro)
4005 CODE:
4006 /* used by the manager thread */
4007 coro_state_destroy (aTHX_ coro);
4008
4009void
4010on_destroy (Coro::State coro, SV *cb)
4011 CODE:
4012 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
4013
4014void
4015join (...)
4016 CODE:
4017 CORO_EXECUTE_SLF_XS (slf_init_join);
4018
4019void
4020terminate (...)
4021 CODE:
4022 CORO_EXECUTE_SLF_XS (slf_init_terminate);
4023
4024void
4025cancel (...)
4026 CODE:
4027 CORO_EXECUTE_SLF_XS (slf_init_cancel);
4028
4029int
4030safe_cancel (Coro::State self, ...)
4031 C_ARGS: aTHX_ self, &ST (1), items - 1
4032
2845void 4033void
2846schedule (...) 4034schedule (...)
2847 CODE: 4035 CODE:
2848 CORO_EXECUTE_SLF_XS (slf_init_schedule); 4036 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2849 4037
2850void 4038void
4039schedule_to (...)
4040 CODE:
4041 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
4042
4043void
4044cede_to (...)
4045 CODE:
4046 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
4047
4048void
2851cede (...) 4049cede (...)
2852 CODE: 4050 CODE:
2853 CORO_EXECUTE_SLF_XS (slf_init_cede); 4051 CORO_EXECUTE_SLF_XS (slf_init_cede);
2854 4052
2855void 4053void
… …
2859 4057
2860void 4058void
2861_set_current (SV *current) 4059_set_current (SV *current)
2862 PROTOTYPE: $ 4060 PROTOTYPE: $
2863 CODE: 4061 CODE:
2864 SvREFCNT_dec (SvRV (coro_current)); 4062 SvREFCNT_dec_NN (SvRV (coro_current));
2865 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 4063 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
2866 4064
2867void 4065void
2868_set_readyhook (SV *hook) 4066_set_readyhook (SV *hook)
2869 PROTOTYPE: $ 4067 PROTOTYPE: $
2870 CODE: 4068 CODE:
2871 SvREFCNT_dec (coro_readyhook); 4069 SvREFCNT_dec (coro_readyhook);
4070 SvGETMAGIC (hook);
4071 if (SvOK (hook))
4072 {
2872 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 4073 coro_readyhook = newSVsv (hook);
4074 CORO_READYHOOK = invoke_sv_ready_hook_helper;
4075 }
4076 else
4077 {
4078 coro_readyhook = 0;
4079 CORO_READYHOOK = 0;
4080 }
2873 4081
2874int 4082int
2875prio (Coro::State coro, int newprio = 0) 4083prio (Coro::State coro, int newprio = 0)
2876 PROTOTYPE: $;$ 4084 PROTOTYPE: $;$
2877 ALIAS: 4085 ALIAS:
… …
2883 if (items > 1) 4091 if (items > 1)
2884 { 4092 {
2885 if (ix) 4093 if (ix)
2886 newprio = coro->prio - newprio; 4094 newprio = coro->prio - newprio;
2887 4095
2888 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 4096 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2889 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 4097 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2890 4098
2891 coro->prio = newprio; 4099 coro->prio = newprio;
2892 } 4100 }
2893} 4101}
2894 OUTPUT: 4102 OUTPUT:
… …
2908 CODE: 4116 CODE:
2909 RETVAL = coro_nready; 4117 RETVAL = coro_nready;
2910 OUTPUT: 4118 OUTPUT:
2911 RETVAL 4119 RETVAL
2912 4120
2913# for async_pool speedup
2914void 4121void
2915_pool_1 (SV *cb) 4122suspend (Coro::State self)
4123 PROTOTYPE: $
2916 CODE: 4124 CODE:
2917{ 4125 self->flags |= CF_SUSPENDED;
2918 HV *hv = (HV *)SvRV (coro_current);
2919 struct coro *coro = SvSTATE_hv ((SV *)hv);
2920 AV *defav = GvAV (PL_defgv);
2921 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2922 AV *invoke_av;
2923 int i, len;
2924 4126
2925 if (!invoke) 4127void
4128resume (Coro::State self)
4129 PROTOTYPE: $
4130 CODE:
4131 self->flags &= ~CF_SUSPENDED;
4132
4133void
4134_pool_handler (...)
4135 CODE:
4136 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
4137
4138void
4139async_pool (SV *cv, ...)
4140 PROTOTYPE: &@
4141 PPCODE:
4142{
4143 HV *hv = (HV *)av_pop (av_async_pool);
4144 AV *av = newAV ();
4145 SV *cb = ST (0);
4146 int i;
4147
4148 av_extend (av, items - 2);
4149 for (i = 1; i < items; ++i)
4150 av_push (av, SvREFCNT_inc_NN (ST (i)));
4151
4152 if ((SV *)hv == &PL_sv_undef)
2926 { 4153 {
2927 SV *old = PL_diehook; 4154 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2928 PL_diehook = 0; 4155 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2929 SvREFCNT_dec (old); 4156 SvREFCNT_dec_NN (sv);
2930 croak ("\3async_pool terminate\2\n");
2931 } 4157 }
2932 4158
2933 SvREFCNT_dec (coro->saved_deffh);
2934 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2935
2936 hv_store (hv, "desc", sizeof ("desc") - 1,
2937 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2938
2939 invoke_av = (AV *)SvRV (invoke);
2940 len = av_len (invoke_av);
2941
2942 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2943
2944 if (len > 0)
2945 { 4159 {
2946 av_fill (defav, len - 1); 4160 struct coro *coro = SvSTATE_hv (hv);
2947 for (i = 0; i < len; ++i) 4161
2948 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 4162 assert (!coro->invoke_cb);
4163 assert (!coro->invoke_av);
4164 coro->invoke_cb = SvREFCNT_inc (cb);
4165 coro->invoke_av = av;
2949 } 4166 }
2950}
2951 4167
2952void 4168 api_ready (aTHX_ (SV *)hv);
2953_pool_2 (SV *cb)
2954 CODE:
2955{
2956 HV *hv = (HV *)SvRV (coro_current);
2957 struct coro *coro = SvSTATE_hv ((SV *)hv);
2958 4169
2959 sv_setsv (cb, &PL_sv_undef); 4170 if (GIMME_V != G_VOID)
2960 4171 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
2961 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 4172 else
2962 coro->saved_deffh = 0;
2963
2964 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2965 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2966 {
2967 SV *old = PL_diehook;
2968 PL_diehook = 0;
2969 SvREFCNT_dec (old); 4173 SvREFCNT_dec_NN (hv);
2970 croak ("\3async_pool terminate\2\n");
2971 }
2972
2973 av_clear (GvAV (PL_defgv));
2974 hv_store (hv, "desc", sizeof ("desc") - 1,
2975 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2976
2977 coro->prio = 0;
2978
2979 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2980 api_trace (aTHX_ coro_current, 0);
2981
2982 av_push (av_async_pool, newSVsv (coro_current));
2983} 4174}
2984 4175
2985SV * 4176SV *
2986rouse_cb () 4177rouse_cb ()
2987 PROTOTYPE: 4178 PROTOTYPE:
… …
2989 RETVAL = coro_new_rouse_cb (aTHX); 4180 RETVAL = coro_new_rouse_cb (aTHX);
2990 OUTPUT: 4181 OUTPUT:
2991 RETVAL 4182 RETVAL
2992 4183
2993void 4184void
2994rouse_wait (SV *cb = 0) 4185rouse_wait (...)
2995 PROTOTYPE: ;$ 4186 PROTOTYPE: ;$
2996 PPCODE: 4187 PPCODE:
2997 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4188 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2998 4189
4190void
4191on_enter (SV *block)
4192 ALIAS:
4193 on_leave = 1
4194 PROTOTYPE: &
4195 CODE:
4196{
4197 struct coro *coro = SvSTATE_current;
4198 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4199
4200 block = s_get_cv_croak (block);
4201
4202 if (!*avp)
4203 *avp = newAV ();
4204
4205 av_push (*avp, SvREFCNT_inc (block));
4206
4207 if (!ix)
4208 on_enterleave_call (aTHX_ block);
4209
4210 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4211 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4212 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4213}
4214
2999 4215
3000MODULE = Coro::State PACKAGE = PerlIO::cede 4216MODULE = Coro::State PACKAGE = PerlIO::cede
3001 4217
3002BOOT: 4218BOOT:
3003 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4219 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3006MODULE = Coro::State PACKAGE = Coro::Semaphore 4222MODULE = Coro::State PACKAGE = Coro::Semaphore
3007 4223
3008SV * 4224SV *
3009new (SV *klass, SV *count = 0) 4225new (SV *klass, SV *count = 0)
3010 CODE: 4226 CODE:
4227{
4228 int semcnt = 1;
4229
4230 if (count)
4231 {
4232 SvGETMAGIC (count);
4233
4234 if (SvOK (count))
4235 semcnt = SvIV (count);
4236 }
4237
3011 RETVAL = sv_bless ( 4238 RETVAL = sv_bless (
3012 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4239 coro_waitarray_new (aTHX_ semcnt),
3013 GvSTASH (CvGV (cv)) 4240 GvSTASH (CvGV (cv))
3014 ); 4241 );
4242}
3015 OUTPUT: 4243 OUTPUT:
3016 RETVAL 4244 RETVAL
3017 4245
3018# helper for Coro::Channel 4246# helper for Coro::Channel and others
3019SV * 4247SV *
3020_alloc (int count) 4248_alloc (int count)
3021 CODE: 4249 CODE:
3022 RETVAL = coro_waitarray_new (aTHX_ count); 4250 RETVAL = coro_waitarray_new (aTHX_ count);
3023 OUTPUT: 4251 OUTPUT:
… …
3029 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); 4257 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
3030 OUTPUT: 4258 OUTPUT:
3031 RETVAL 4259 RETVAL
3032 4260
3033void 4261void
3034up (SV *self, int adjust = 1) 4262up (SV *self)
3035 ALIAS:
3036 adjust = 1
3037 CODE: 4263 CODE:
3038 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 4264 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
3039 4265
3040void 4266void
3041down (SV *self) 4267adjust (SV *self, int adjust)
4268 CODE:
4269 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
4270
4271void
4272down (...)
3042 CODE: 4273 CODE:
3043 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 4274 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3044 4275
3045void 4276void
3046wait (SV *self) 4277wait (...)
3047 CODE: 4278 CODE:
3048 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); 4279 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
3049 4280
3050void 4281void
3051try (SV *self) 4282try (SV *self)
… …
3065 XSRETURN_NO; 4296 XSRETURN_NO;
3066} 4297}
3067 4298
3068void 4299void
3069waiters (SV *self) 4300waiters (SV *self)
3070 PPCODE: 4301 PPCODE:
3071{ 4302{
3072 AV *av = (AV *)SvRV (self); 4303 AV *av = (AV *)SvRV (self);
3073 int wcount = AvFILLp (av) + 1 - 1; 4304 int wcount = AvFILLp (av) + 1 - 1;
3074 4305
3075 if (GIMME_V == G_SCALAR) 4306 if (GIMME_V == G_SCALAR)
… …
3081 for (i = 1; i <= wcount; ++i) 4312 for (i = 1; i <= wcount; ++i)
3082 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4313 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3083 } 4314 }
3084} 4315}
3085 4316
4317MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4318
4319void
4320_may_delete (SV *sem, int count, unsigned int extra_refs)
4321 PPCODE:
4322{
4323 AV *av = (AV *)SvRV (sem);
4324
4325 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4326 && AvFILLp (av) == 0 /* no waiters, just count */
4327 && SvIV (AvARRAY (av)[0]) == count)
4328 XSRETURN_YES;
4329
4330 XSRETURN_NO;
4331}
4332
3086MODULE = Coro::State PACKAGE = Coro::Signal 4333MODULE = Coro::State PACKAGE = Coro::Signal
3087 4334
3088SV * 4335SV *
3089new (SV *klass) 4336new (SV *klass)
3090 CODE: 4337 CODE:
… …
3094 ); 4341 );
3095 OUTPUT: 4342 OUTPUT:
3096 RETVAL 4343 RETVAL
3097 4344
3098void 4345void
3099wait (SV *self) 4346wait (...)
3100 CODE: 4347 CODE:
3101 CORO_EXECUTE_SLF_XS (slf_init_signal_wait); 4348 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3102 4349
3103void 4350void
3104broadcast (SV *self) 4351broadcast (SV *self)
3105 CODE: 4352 CODE:
3106{ 4353{
3107 AV *av = (AV *)SvRV (self); 4354 AV *av = (AV *)SvRV (self);
3108 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4355 coro_signal_wake (aTHX_ av, AvFILLp (av));
3109} 4356}
3110 4357
3111void 4358void
3112send (SV *self) 4359send (SV *self)
… …
3120 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4367 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3121} 4368}
3122 4369
3123IV 4370IV
3124awaited (SV *self) 4371awaited (SV *self)
3125 CODE: 4372 CODE:
3126 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4373 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3127 OUTPUT: 4374 OUTPUT:
3128 RETVAL 4375 RETVAL
3129 4376
3130 4377
… …
3135 4382
3136void 4383void
3137_schedule (...) 4384_schedule (...)
3138 CODE: 4385 CODE:
3139{ 4386{
3140 static int incede; 4387 static int incede;
3141 4388
3142 api_cede_notself (aTHX); 4389 api_cede_notself (aTHX);
3143 4390
3144 ++incede; 4391 ++incede;
3145 while (coro_nready >= incede && api_cede (aTHX)) 4392 while (coro_nready >= incede && api_cede (aTHX))
… …
3161 4408
3162void 4409void
3163_register (char *target, char *proto, SV *req) 4410_register (char *target, char *proto, SV *req)
3164 CODE: 4411 CODE:
3165{ 4412{
3166 HV *st; 4413 SV *req_cv = s_get_cv_croak (req);
3167 GV *gvp;
3168 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
3169 /* newXSproto doesn't return the CV on 5.8 */ 4414 /* newXSproto doesn't return the CV on 5.8 */
3170 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4415 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3171 sv_setpv ((SV *)slf_cv, proto); 4416 sv_setpv ((SV *)slf_cv, proto);
3172 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4417 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3173} 4418}
3174 4419
4420MODULE = Coro::State PACKAGE = Coro::Select
4421
4422void
4423patch_pp_sselect ()
4424 CODE:
4425 if (!coro_old_pp_sselect)
4426 {
4427 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4428 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4429 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4430 }
4431
4432void
4433unpatch_pp_sselect ()
4434 CODE:
4435 if (coro_old_pp_sselect)
4436 {
4437 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4438 coro_old_pp_sselect = 0;
4439 }
4440
4441MODULE = Coro::State PACKAGE = Coro::Util
4442
4443void
4444_exit (int code)
4445 CODE:
4446 _exit (code);
4447
4448NV
4449time ()
4450 CODE:
4451 RETVAL = nvtime (aTHX);
4452 OUTPUT:
4453 RETVAL
4454
4455NV
4456gettimeofday ()
4457 PPCODE:
4458{
4459 UV tv [2];
4460 u2time (aTHX_ tv);
4461 EXTEND (SP, 2);
4462 PUSHs (sv_2mortal (newSVuv (tv [0])));
4463 PUSHs (sv_2mortal (newSVuv (tv [1])));
4464}
4465

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines