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Comparing Coro/Coro/State.xs (file contents):
Revision 1.347 by root, Wed Jun 10 00:00:02 2009 UTC vs.
Revision 1.435 by root, Sat Nov 2 19:49:33 2013 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#include "ecb.h"
20
21#include <stddef.h>
13#include <stdio.h> 22#include <stdio.h>
14#include <errno.h> 23#include <errno.h>
15#include <assert.h> 24#include <assert.h>
16 25
17#ifdef WIN32 26#ifndef SVs_PADSTALE
27# define SVs_PADSTALE 0
28#endif
29
30#ifdef PadARRAY
31# define NEWPADAPI 1
32# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33#else
34typedef AV PADNAMELIST;
35# if !PERL_VERSION_ATLEAST(5,8,0)
36typedef AV PADLIST;
37typedef AV PAD;
38# endif
39# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
40# define PadlistMAX(pl) AvFILLp (pl)
41# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42# define PadARRAY AvARRAY
43# define PadMAX AvFILLp
44# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
45#endif
46
47#if defined(_WIN32)
48# undef HAS_GETTIMEOFDAY
18# undef setjmp 49# undef setjmp
19# undef longjmp 50# undef longjmp
20# undef _exit 51# undef _exit
21# define setjmp _setjmp /* deep magic */ 52# define setjmp _setjmp /* deep magic */
22#else 53#else
23# include <inttypes.h> /* most portable stdint.h */ 54# include <inttypes.h> /* most portable stdint.h */
24#endif 55#endif
25 56
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 */ 57/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 58static int cctx_max_idle = 4;
55 59
56#define PERL_VERSION_ATLEAST(a,b,c) \ 60#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 61# define HAS_SCOPESTACK_NAME 1
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
109
110/* 5.8.7 */
111#ifndef SvRV_set
112# define SvRV_set(s,v) SvRV(s) = (v)
113#endif
114
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD
117#endif
118
119#ifndef CORO_STACKGUARD
120# define CORO_STACKGUARD 0
121#endif 62#endif
122 63
123/* prefer perl internal functions over our own? */ 64/* prefer perl internal functions over our own? */
124#ifndef CORO_PREFER_PERL_FUNCTIONS 65#ifndef CORO_PREFER_PERL_FUNCTIONS
125# define CORO_PREFER_PERL_FUNCTIONS 0 66# define CORO_PREFER_PERL_FUNCTIONS 0
… …
135# define STACKLEVEL ((void *)&stacklevel) 76# define STACKLEVEL ((void *)&stacklevel)
136#endif 77#endif
137 78
138#define IN_DESTRUCT PL_dirty 79#define IN_DESTRUCT PL_dirty
139 80
140#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr),(value))
143# define INLINE static inline
144#else
145# define attribute(x)
146# define expect(expr,value) (expr)
147# define INLINE static
148#endif
149
150#define expect_false(expr) expect ((expr) != 0, 0)
151#define expect_true(expr) expect ((expr) != 0, 1)
152
153#define NOINLINE attribute ((noinline))
154
155#include "CoroAPI.h" 81#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */ 82#define GCoroAPI (&coroapi) /* very sneaky */
157 83
158#ifdef USE_ITHREADS 84#ifdef USE_ITHREADS
159# if CORO_PTHREAD 85# if CORO_PTHREAD
160static void *coro_thx; 86static void *coro_thx;
161# endif 87# endif
162#endif 88#endif
163 89
90#ifdef __linux
91# include <time.h> /* for timespec */
92# include <syscall.h> /* for SYS_* */
93# ifdef SYS_clock_gettime
94# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
95# define CORO_CLOCK_MONOTONIC 1
96# define CORO_CLOCK_THREAD_CPUTIME_ID 3
97# endif
98#endif
99
164static double (*nvtime)(); /* so why doesn't it take void? */ 100static double (*nvtime)(); /* so why doesn't it take void? */
101static void (*u2time)(pTHX_ UV ret[2]);
165 102
166/* we hijack an hopefully unused CV flag for our purposes */ 103/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 104#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 105static OP *pp_slf (pTHX);
106static void slf_destroy (pTHX_ struct coro *coro);
169 107
170static U32 cctx_gen; 108static U32 cctx_gen;
171static size_t cctx_stacksize = CORO_STACKSIZE; 109static size_t cctx_stacksize = CORO_STACKSIZE;
172static struct CoroAPI coroapi; 110static struct CoroAPI coroapi;
173static AV *main_mainstack; /* used to differentiate between $main and others */ 111static AV *main_mainstack; /* used to differentiate between $main and others */
… …
190static SV *sv_pool_size; 128static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */ 129static SV *sv_async_pool_idle; /* description string */
192static AV *av_async_pool; /* idle pool */ 130static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */ 131static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler; 132static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
196 133
197/* Coro::AnyEvent */ 134/* Coro::AnyEvent */
198static SV *sv_activity; 135static SV *sv_activity;
199 136
137/* enable processtime/realtime profiling */
138static char enable_times;
139typedef U32 coro_ts[2];
140static coro_ts time_real, time_cpu;
141static char times_valid;
142
200static struct coro_cctx *cctx_first; 143static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 144static int cctx_count, cctx_idle;
202 145
203enum { 146enum
147{
204 CC_MAPPED = 0x01, 148 CC_MAPPED = 0x01,
205 CC_NOREUSE = 0x02, /* throw this away after tracing */ 149 CC_NOREUSE = 0x02, /* throw this away after tracing */
206 CC_TRACE = 0x04, 150 CC_TRACE = 0x04,
207 CC_TRACE_SUB = 0x08, /* trace sub calls */ 151 CC_TRACE_SUB = 0x08, /* trace sub calls */
208 CC_TRACE_LINE = 0x10, /* trace each statement */ 152 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
213typedef struct coro_cctx 157typedef struct coro_cctx
214{ 158{
215 struct coro_cctx *next; 159 struct coro_cctx *next;
216 160
217 /* the stack */ 161 /* the stack */
218 void *sptr; 162 struct coro_stack stack;
219 size_t ssize;
220 163
221 /* cpu state */ 164 /* cpu state */
222 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 165 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
166#ifndef NDEBUG
223 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 167 JMPENV *idle_te; /* same as idle_sp, but for top_env */
168#endif
224 JMPENV *top_env; 169 JMPENV *top_env;
225 coro_context cctx; 170 coro_context cctx;
226 171
227 U32 gen; 172 U32 gen;
228#if CORO_USE_VALGRIND 173#if CORO_USE_VALGRIND
229 int valgrind_id; 174 int valgrind_id;
230#endif 175#endif
231 unsigned char flags; 176 unsigned char flags;
232} coro_cctx; 177} coro_cctx;
233 178
234coro_cctx *cctx_current; /* the currently running cctx */ 179static coro_cctx *cctx_current; /* the currently running cctx */
235 180
236/*****************************************************************************/ 181/*****************************************************************************/
237 182
183static MGVTBL coro_state_vtbl;
184
238enum { 185enum
186{
239 CF_RUNNING = 0x0001, /* coroutine is running */ 187 CF_RUNNING = 0x0001, /* coroutine is running */
240 CF_READY = 0x0002, /* coroutine is ready */ 188 CF_READY = 0x0002, /* coroutine is ready */
241 CF_NEW = 0x0004, /* has never been switched to */ 189 CF_NEW = 0x0004, /* has never been switched to */
242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 190 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
243 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 191 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
192 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
244}; 193};
245 194
246/* the structure where most of the perl state is stored, overlaid on the cxstack */ 195/* the structure where most of the perl state is stored, overlaid on the cxstack */
247typedef struct 196typedef struct
248{ 197{
249 SV *defsv;
250 AV *defav;
251 SV *errsv;
252 SV *irsgv;
253 HV *hinthv;
254#define VAR(name,type) type name; 198 #define VARx(name,expr,type) type name;
255# include "state.h" 199 #include "state.h"
256#undef VAR
257} perl_slots; 200} perl_slots;
258 201
202/* how many context stack entries do we need for perl_slots */
259#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 203#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
260 204
261/* this is a structure representing a perl-level coroutine */ 205/* this is a structure representing a perl-level coroutine */
262struct coro { 206struct coro
207{
263 /* the C coroutine allocated to this perl coroutine, if any */ 208 /* the C coroutine allocated to this perl coroutine, if any */
264 coro_cctx *cctx; 209 coro_cctx *cctx;
265 210
266 /* ready queue */ 211 /* ready queue */
267 struct coro *next_ready; 212 struct coro *next_ready;
… …
269 /* state data */ 214 /* state data */
270 struct CoroSLF slf_frame; /* saved slf frame */ 215 struct CoroSLF slf_frame; /* saved slf frame */
271 AV *mainstack; 216 AV *mainstack;
272 perl_slots *slot; /* basically the saved sp */ 217 perl_slots *slot; /* basically the saved sp */
273 218
274 CV *startcv; /* the CV to execute */ 219 CV *startcv; /* the CV to execute */
275 AV *args; /* data associated with this coroutine (initial args) */ 220 AV *args; /* data associated with this coroutine (initial args) */
276 int refcnt; /* coroutines are refcounted, yes */
277 int flags; /* CF_ flags */ 221 int flags; /* CF_ flags */
278 HV *hv; /* the perl hash associated with this coro, if any */ 222 HV *hv; /* the perl hash associated with this coro, if any */
279 void (*on_destroy)(pTHX_ struct coro *coro);
280 223
281 /* statistics */ 224 /* statistics */
282 int usecount; /* number of transfers to this coro */ 225 int usecount; /* number of transfers to this coro */
283 226
284 /* coro process data */ 227 /* coro process data */
285 int prio; 228 int prio;
286 SV *except; /* exception to be thrown */ 229 SV *except; /* exception to be thrown */
287 SV *rouse_cb; 230 SV *rouse_cb; /* last rouse callback */
231 AV *on_destroy; /* callbacks or coros to notify on destroy */
232 AV *status; /* the exit status list */
288 233
289 /* async_pool */ 234 /* async_pool */
290 SV *saved_deffh; 235 SV *saved_deffh;
291 SV *invoke_cb; 236 SV *invoke_cb;
292 AV *invoke_av; 237 AV *invoke_av;
293 238
294 /* on_enter/on_leave */ 239 /* on_enter/on_leave */
295 AV *on_enter; 240 AV *on_enter;
296 AV *on_leave; 241 AV *on_leave;
297 242
243 /* swap_sv */
244 AV *swap_sv;
245
246 /* times */
247 coro_ts t_cpu, t_real;
248
298 /* linked list */ 249 /* linked list */
299 struct coro *next, *prev; 250 struct coro *next, *prev;
300}; 251};
301 252
302typedef struct coro *Coro__State; 253typedef struct coro *Coro__State;
303typedef struct coro *Coro__State_or_hashref; 254typedef struct coro *Coro__State_or_hashref;
304 255
305/* the following variables are effectively part of the perl context */ 256/* the following variables are effectively part of the perl context */
306/* and get copied between struct coro and these variables */ 257/* and get copied between struct coro and these variables */
307/* the mainr easonw e don't support windows process emulation */ 258/* the main reason we don't support windows process emulation */
308static struct CoroSLF slf_frame; /* the current slf frame */ 259static struct CoroSLF slf_frame; /* the current slf frame */
309 260
310/** Coro ********************************************************************/ 261/** Coro ********************************************************************/
311 262
312#define PRIO_MAX 3 263#define CORO_PRIO_MAX 3
313#define PRIO_HIGH 1 264#define CORO_PRIO_HIGH 1
314#define PRIO_NORMAL 0 265#define CORO_PRIO_NORMAL 0
315#define PRIO_LOW -1 266#define CORO_PRIO_LOW -1
316#define PRIO_IDLE -3 267#define CORO_PRIO_IDLE -3
317#define PRIO_MIN -4 268#define CORO_PRIO_MIN -4
318 269
319/* for Coro.pm */ 270/* for Coro.pm */
320static SV *coro_current; 271static SV *coro_current;
321static SV *coro_readyhook; 272static SV *coro_readyhook;
322static struct coro *coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; /* head|tail */ 273static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
323static CV *cv_coro_run, *cv_coro_terminate; 274static CV *cv_coro_run;
324static struct coro *coro_first; 275static struct coro *coro_first;
325#define coro_nready coroapi.nready 276#define coro_nready coroapi.nready
326 277
278/** JIT *********************************************************************/
279
280#if CORO_JIT
281 /* APPLE doesn't have mmap though */
282 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
283 #ifndef CORO_JIT_TYPE
284 #if ECB_AMD64 && CORO_JIT_UNIXY
285 #define CORO_JIT_TYPE "amd64-unix"
286 #elif __i386 && CORO_JIT_UNIXY
287 #define CORO_JIT_TYPE "x86-unix"
288 #endif
289 #endif
290#endif
291
292#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
293 #undef CORO_JIT
294#endif
295
296#if CORO_JIT
297 typedef void (*load_save_perl_slots_type)(perl_slots *);
298 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
299#endif
300
301/** Coro::Select ************************************************************/
302
303static OP *(*coro_old_pp_sselect) (pTHX);
304static SV *coro_select_select;
305
306/* horrible hack, but if it works... */
307static OP *
308coro_pp_sselect (pTHX)
309{
310 dSP;
311 PUSHMARK (SP - 4); /* fake argument list */
312 XPUSHs (coro_select_select);
313 PUTBACK;
314
315 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
316 PL_op->op_flags |= OPf_STACKED;
317 PL_op->op_private = 0;
318 return PL_ppaddr [OP_ENTERSUB](aTHX);
319}
320
321/** time stuff **************************************************************/
322
323#ifdef HAS_GETTIMEOFDAY
324
325ecb_inline void
326coro_u2time (pTHX_ UV ret[2])
327{
328 struct timeval tv;
329 gettimeofday (&tv, 0);
330
331 ret [0] = tv.tv_sec;
332 ret [1] = tv.tv_usec;
333}
334
335ecb_inline double
336coro_nvtime (void)
337{
338 struct timeval tv;
339 gettimeofday (&tv, 0);
340
341 return tv.tv_sec + tv.tv_usec * 1e-6;
342}
343
344ecb_inline void
345time_init (pTHX)
346{
347 nvtime = coro_nvtime;
348 u2time = coro_u2time;
349}
350
351#else
352
353ecb_inline void
354time_init (pTHX)
355{
356 SV **svp;
357
358 require_pv ("Time/HiRes.pm");
359
360 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
361
362 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
363 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
364
365 nvtime = INT2PTR (double (*)(), SvIV (*svp));
366
367 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
368 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
369}
370
371#endif
372
327/** lowlevel stuff **********************************************************/ 373/** lowlevel stuff **********************************************************/
328 374
329static SV * 375static SV * ecb_noinline
330coro_get_sv (pTHX_ const char *name, int create) 376coro_get_sv (pTHX_ const char *name, int create)
331{ 377{
332#if PERL_VERSION_ATLEAST (5,10,0) 378#if PERL_VERSION_ATLEAST (5,10,0)
333 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 379 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
334 get_sv (name, create); 380 get_sv (name, create);
335#endif 381#endif
336 return get_sv (name, create); 382 return get_sv (name, create);
337} 383}
338 384
339static AV * 385static AV * ecb_noinline
340coro_get_av (pTHX_ const char *name, int create) 386coro_get_av (pTHX_ const char *name, int create)
341{ 387{
342#if PERL_VERSION_ATLEAST (5,10,0) 388#if PERL_VERSION_ATLEAST (5,10,0)
343 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 389 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
344 get_av (name, create); 390 get_av (name, create);
345#endif 391#endif
346 return get_av (name, create); 392 return get_av (name, create);
347} 393}
348 394
349static HV * 395static HV * ecb_noinline
350coro_get_hv (pTHX_ const char *name, int create) 396coro_get_hv (pTHX_ const char *name, int create)
351{ 397{
352#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
353 /* 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 */
354 get_hv (name, create); 400 get_hv (name, create);
355#endif 401#endif
356 return get_hv (name, create); 402 return get_hv (name, create);
357} 403}
358 404
359/* may croak */ 405ecb_inline void
360INLINE CV * 406coro_times_update (void)
361coro_sv_2cv (pTHX_ SV *sv)
362{ 407{
363 HV *st; 408#ifdef coro_clock_gettime
364 GV *gvp; 409 struct timespec ts;
365 CV *cv = sv_2cv (sv, &st, &gvp, 0);
366 410
367 if (!cv) 411 ts.tv_sec = ts.tv_nsec = 0;
368 croak ("code reference expected"); 412 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
413 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
369 414
370 return cv; 415 ts.tv_sec = ts.tv_nsec = 0;
416 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
417 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
418#else
419 dTHX;
420 UV tv[2];
421
422 u2time (aTHX_ tv);
423 time_real [0] = tv [0];
424 time_real [1] = tv [1] * 1000;
425#endif
426}
427
428ecb_inline void
429coro_times_add (struct coro *c)
430{
431 c->t_real [1] += time_real [1];
432 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
433 c->t_real [0] += time_real [0];
434
435 c->t_cpu [1] += time_cpu [1];
436 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
437 c->t_cpu [0] += time_cpu [0];
438}
439
440ecb_inline void
441coro_times_sub (struct coro *c)
442{
443 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
444 c->t_real [1] -= time_real [1];
445 c->t_real [0] -= time_real [0];
446
447 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
448 c->t_cpu [1] -= time_cpu [1];
449 c->t_cpu [0] -= time_cpu [0];
371} 450}
372 451
373/*****************************************************************************/ 452/*****************************************************************************/
374/* magic glue */ 453/* magic glue */
375 454
376#define CORO_MAGIC_type_cv 26 455#define CORO_MAGIC_type_cv 26
377#define CORO_MAGIC_type_state PERL_MAGIC_ext 456#define CORO_MAGIC_type_state PERL_MAGIC_ext
378 457
379#define CORO_MAGIC_NN(sv, type) \ 458#define CORO_MAGIC_NN(sv, type) \
380 (expect_true (SvMAGIC (sv)->mg_type == type) \ 459 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
381 ? SvMAGIC (sv) \ 460 ? SvMAGIC (sv) \
382 : mg_find (sv, type)) 461 : mg_find (sv, type))
383 462
384#define CORO_MAGIC(sv, type) \ 463#define CORO_MAGIC(sv, type) \
385 (expect_true (SvMAGIC (sv)) \ 464 (ecb_expect_true (SvMAGIC (sv)) \
386 ? CORO_MAGIC_NN (sv, type) \ 465 ? CORO_MAGIC_NN (sv, type) \
387 : 0) 466 : 0)
388 467
389#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 468#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
390#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 469#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
391 470
392INLINE struct coro * 471ecb_inline MAGIC *
472SvSTATEhv_p (pTHX_ SV *coro)
473{
474 MAGIC *mg;
475
476 if (ecb_expect_true (
477 SvTYPE (coro) == SVt_PVHV
478 && (mg = CORO_MAGIC_state (coro))
479 && mg->mg_virtual == &coro_state_vtbl
480 ))
481 return mg;
482
483 return 0;
484}
485
486ecb_inline struct coro *
393SvSTATE_ (pTHX_ SV *coro) 487SvSTATE_ (pTHX_ SV *coro)
394{ 488{
395 HV *stash;
396 MAGIC *mg; 489 MAGIC *mg;
397 490
398 if (SvROK (coro)) 491 if (SvROK (coro))
399 coro = SvRV (coro); 492 coro = SvRV (coro);
400 493
401 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 494 mg = SvSTATEhv_p (aTHX_ coro);
495 if (!mg)
402 croak ("Coro::State object required"); 496 croak ("Coro::State object required");
403 497
404 stash = SvSTASH (coro);
405 if (expect_false (stash != coro_stash && stash != coro_state_stash))
406 {
407 /* very slow, but rare, check */
408 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
409 croak ("Coro::State object required");
410 }
411
412 mg = CORO_MAGIC_state (coro);
413 return (struct coro *)mg->mg_ptr; 498 return (struct coro *)mg->mg_ptr;
414} 499}
415 500
416#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 501#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
417 502
… …
420#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 505#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
421 506
422/*****************************************************************************/ 507/*****************************************************************************/
423/* padlist management and caching */ 508/* padlist management and caching */
424 509
425static AV * 510ecb_inline PADLIST *
426coro_derive_padlist (pTHX_ CV *cv) 511coro_derive_padlist (pTHX_ CV *cv)
427{ 512{
428 AV *padlist = CvPADLIST (cv); 513 PADLIST *padlist = CvPADLIST (cv);
429 AV *newpadlist, *newpad; 514 PADLIST *newpadlist;
515 PAD *newpad;
516 PADOFFSET off = PadlistMAX (padlist) + 1;
430 517
431 newpadlist = newAV (); 518#if NEWPADAPI
519
520 while (!PadlistARRAY (padlist)[off - 1])
521 --off;
522
523 Perl_pad_push (aTHX_ padlist, off);
524
525 newpad = PadlistARRAY (padlist)[off];
526 PadlistARRAY (padlist)[off] = 0;
527
528#else
529
530#if PERL_VERSION_ATLEAST (5,10,0)
531 Perl_pad_push (aTHX_ padlist, off);
532#else
533 Perl_pad_push (aTHX_ padlist, off, 1);
534#endif
535
536 newpad = PadlistARRAY (padlist)[off];
537 PadlistMAX (padlist) = off - 1;
538
539#endif
540
541 newPADLIST (newpadlist);
542#if !PERL_VERSION_ATLEAST(5,15,3)
543 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
432 AvREAL_off (newpadlist); 544 AvREAL_off (newpadlist);
433#if PERL_VERSION_ATLEAST (5,10,0)
434 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
435#else
436 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
437#endif 545#endif
438 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
439 --AvFILLp (padlist);
440 546
441 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 547 /* Already extended to 2 elements by newPADLIST. */
442 av_store (newpadlist, 1, (SV *)newpad); 548 PadlistMAX (newpadlist) = 1;
549 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
550 PadlistARRAY (newpadlist)[1] = newpad;
443 551
444 return newpadlist; 552 return newpadlist;
445} 553}
446 554
447static void 555ecb_inline void
448free_padlist (pTHX_ AV *padlist) 556free_padlist (pTHX_ PADLIST *padlist)
449{ 557{
450 /* may be during global destruction */ 558 /* may be during global destruction */
451 if (!IN_DESTRUCT) 559 if (!IN_DESTRUCT)
452 { 560 {
453 I32 i = AvFILLp (padlist); 561 I32 i = PadlistMAX (padlist);
454 562
455 while (i > 0) /* special-case index 0 */ 563 while (i > 0) /* special-case index 0 */
456 { 564 {
457 /* we try to be extra-careful here */ 565 /* we try to be extra-careful here */
458 AV *av = (AV *)AvARRAY (padlist)[i--]; 566 PAD *pad = PadlistARRAY (padlist)[i--];
459 I32 j = AvFILLp (av); 567 I32 j = PadMAX (pad);
460 568
461 while (j >= 0) 569 while (j >= 0)
462 SvREFCNT_dec (AvARRAY (av)[j--]); 570 SvREFCNT_dec (PadARRAY (pad)[j--]);
463 571
464 AvFILLp (av) = -1; 572 PadMAX (pad) = -1;
465 SvREFCNT_dec (av); 573 SvREFCNT_dec (pad);
466 } 574 }
467 575
468 SvREFCNT_dec (AvARRAY (padlist)[0]); 576 SvREFCNT_dec (PadlistNAMES (padlist));
469 577
578#if NEWPADAPI
579 Safefree (PadlistARRAY (padlist));
580 Safefree (padlist);
581#else
470 AvFILLp (padlist) = -1; 582 AvFILLp (padlist) = -1;
583 AvREAL_off (padlist);
471 SvREFCNT_dec ((SV*)padlist); 584 SvREFCNT_dec ((SV*)padlist);
585#endif
472 } 586 }
473} 587}
474 588
475static int 589static int
476coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 590coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
477{ 591{
478 AV *padlist; 592 PADLIST *padlist;
479 AV *av = (AV *)mg->mg_obj; 593 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
594 size_t len = *(size_t *)mg->mg_ptr;
480 595
481 /* casting is fun. */ 596 /* perl manages to free our internal AV and _then_ call us */
482 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 597 if (IN_DESTRUCT)
598 return 0;
599
600 while (len--)
483 free_padlist (aTHX_ padlist); 601 free_padlist (aTHX_ padlists[len]);
484
485 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
486 602
487 return 0; 603 return 0;
488} 604}
489 605
490static MGVTBL coro_cv_vtbl = { 606static MGVTBL coro_cv_vtbl = {
491 0, 0, 0, 0, 607 0, 0, 0, 0,
492 coro_cv_free 608 coro_cv_free
493}; 609};
494 610
495/* the next two functions merely cache the padlists */ 611/* the next two functions merely cache the padlists */
496static void 612ecb_inline void
497get_padlist (pTHX_ CV *cv) 613get_padlist (pTHX_ CV *cv)
498{ 614{
499 MAGIC *mg = CORO_MAGIC_cv (cv); 615 MAGIC *mg = CORO_MAGIC_cv (cv);
500 AV *av; 616 size_t *lenp;
501 617
502 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 618 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
503 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 619 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
504 else 620 else
505 { 621 {
506#if CORO_PREFER_PERL_FUNCTIONS 622#if CORO_PREFER_PERL_FUNCTIONS
507 /* this is probably cleaner? but also slower! */ 623 /* this is probably cleaner? but also slower! */
508 /* in practise, it seems to be less stable */ 624 /* in practise, it seems to be less stable */
… …
514 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 630 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
515#endif 631#endif
516 } 632 }
517} 633}
518 634
519static void 635ecb_inline void
520put_padlist (pTHX_ CV *cv) 636put_padlist (pTHX_ CV *cv)
521{ 637{
522 MAGIC *mg = CORO_MAGIC_cv (cv); 638 MAGIC *mg = CORO_MAGIC_cv (cv);
523 AV *av;
524 639
525 if (expect_false (!mg)) 640 if (ecb_expect_false (!mg))
641 {
526 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 642 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
643 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
644 mg->mg_len = 1; /* so mg_free frees mg_ptr */
645 }
646 else
647 Renew (mg->mg_ptr,
648 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
649 char);
527 650
528 av = (AV *)mg->mg_obj; 651 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
529
530 if (expect_false (AvFILLp (av) >= AvMAX (av)))
531 av_extend (av, AvFILLp (av) + 1);
532
533 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
534} 652}
535 653
536/** load & save, init *******************************************************/ 654/** load & save, init *******************************************************/
655
656ecb_inline void
657swap_sv (SV *a, SV *b)
658{
659 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
660 SV tmp;
661
662 /* swap sv_any */
663 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
664
665 /* swap sv_flags */
666 SvFLAGS (&tmp) = SvFLAGS (a);
667 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
668 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
669
670#if PERL_VERSION_ATLEAST (5,10,0)
671 /* perl 5.10 and later complicates this _quite_ a bit, but it also
672 * is much faster, so no quarrels here. alternatively, we could
673 * sv_upgrade to avoid this.
674 */
675 {
676 /* swap sv_u */
677 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
678
679 /* if SvANY points to the head, we need to adjust the pointers,
680 * as the pointer for a still points to b, and maybe vice versa.
681 */
682 #define svany_in_head(type) \
683 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
684
685 if (svany_in_head (SvTYPE (a)))
686 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
687
688 if (svany_in_head (SvTYPE (b)))
689 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
690 }
691#endif
692}
693
694/* swap sv heads, at least logically */
695static void
696swap_svs (pTHX_ Coro__State c)
697{
698 int i;
699
700 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
701 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
702}
703
704#define SWAP_SVS(coro) \
705 if (ecb_expect_false ((coro)->swap_sv)) \
706 swap_svs (aTHX_ (coro))
537 707
538static void 708static void
539on_enterleave_call (pTHX_ SV *cb); 709on_enterleave_call (pTHX_ SV *cb);
540 710
541static void 711static void
… …
544 perl_slots *slot = c->slot; 714 perl_slots *slot = c->slot;
545 c->slot = 0; 715 c->slot = 0;
546 716
547 PL_mainstack = c->mainstack; 717 PL_mainstack = c->mainstack;
548 718
549 GvSV (PL_defgv) = slot->defsv; 719#if CORO_JIT
550 GvAV (PL_defgv) = slot->defav; 720 load_perl_slots (slot);
551 GvSV (PL_errgv) = slot->errsv; 721#else
552 GvSV (irsgv) = slot->irsgv;
553 GvHV (PL_hintgv) = slot->hinthv;
554
555 #define VAR(name,type) PL_ ## name = slot->name; 722 #define VARx(name,expr,type) expr = slot->name;
556 # include "state.h" 723 #include "state.h"
557 #undef VAR 724#endif
558 725
559 { 726 {
560 dSP; 727 dSP;
561 728
562 CV *cv; 729 CV *cv;
563 730
564 /* now do the ugly restore mess */ 731 /* now do the ugly restore mess */
565 while (expect_true (cv = (CV *)POPs)) 732 while (ecb_expect_true (cv = (CV *)POPs))
566 { 733 {
567 put_padlist (aTHX_ cv); /* mark this padlist as available */ 734 put_padlist (aTHX_ cv); /* mark this padlist as available */
568 CvDEPTH (cv) = PTR2IV (POPs); 735 CvDEPTH (cv) = PTR2IV (POPs);
569 CvPADLIST (cv) = (AV *)POPs; 736 CvPADLIST (cv) = (PADLIST *)POPs;
570 } 737 }
571 738
572 PUTBACK; 739 PUTBACK;
573 } 740 }
574 741
575 slf_frame = c->slf_frame; 742 slf_frame = c->slf_frame;
576 CORO_THROW = c->except; 743 CORO_THROW = c->except;
577 744
745 if (ecb_expect_false (enable_times))
746 {
747 if (ecb_expect_false (!times_valid))
748 coro_times_update ();
749
750 coro_times_sub (c);
751 }
752
578 if (expect_false (c->on_enter)) 753 if (ecb_expect_false (c->on_enter))
579 { 754 {
580 int i; 755 int i;
581 756
582 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 757 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
583 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 758 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
584 } 759 }
760
761 SWAP_SVS (c);
585} 762}
586 763
587static void 764static void
588save_perl (pTHX_ Coro__State c) 765save_perl (pTHX_ Coro__State c)
589{ 766{
767 SWAP_SVS (c);
768
590 if (expect_false (c->on_leave)) 769 if (ecb_expect_false (c->on_leave))
591 { 770 {
592 int i; 771 int i;
593 772
594 for (i = AvFILLp (c->on_leave); i >= 0; --i) 773 for (i = AvFILLp (c->on_leave); i >= 0; --i)
595 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 774 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
775 }
776
777 times_valid = 0;
778
779 if (ecb_expect_false (enable_times))
780 {
781 coro_times_update (); times_valid = 1;
782 coro_times_add (c);
596 } 783 }
597 784
598 c->except = CORO_THROW; 785 c->except = CORO_THROW;
599 c->slf_frame = slf_frame; 786 c->slf_frame = slf_frame;
600 787
… …
611 798
612 XPUSHs (Nullsv); 799 XPUSHs (Nullsv);
613 /* this loop was inspired by pp_caller */ 800 /* this loop was inspired by pp_caller */
614 for (;;) 801 for (;;)
615 { 802 {
616 while (expect_true (cxix >= 0)) 803 while (ecb_expect_true (cxix >= 0))
617 { 804 {
618 PERL_CONTEXT *cx = &ccstk[cxix--]; 805 PERL_CONTEXT *cx = &ccstk[cxix--];
619 806
620 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 807 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
621 { 808 {
622 CV *cv = cx->blk_sub.cv; 809 CV *cv = cx->blk_sub.cv;
623 810
624 if (expect_true (CvDEPTH (cv))) 811 if (ecb_expect_true (CvDEPTH (cv)))
625 { 812 {
626 EXTEND (SP, 3); 813 EXTEND (SP, 3);
627 PUSHs ((SV *)CvPADLIST (cv)); 814 PUSHs ((SV *)CvPADLIST (cv));
628 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 815 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
629 PUSHs ((SV *)cv); 816 PUSHs ((SV *)cv);
… …
632 get_padlist (aTHX_ cv); 819 get_padlist (aTHX_ cv);
633 } 820 }
634 } 821 }
635 } 822 }
636 823
637 if (expect_true (top_si->si_type == PERLSI_MAIN)) 824 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
638 break; 825 break;
639 826
640 top_si = top_si->si_prev; 827 top_si = top_si->si_prev;
641 ccstk = top_si->si_cxstack; 828 ccstk = top_si->si_cxstack;
642 cxix = top_si->si_cxix; 829 cxix = top_si->si_cxix;
… …
644 831
645 PUTBACK; 832 PUTBACK;
646 } 833 }
647 834
648 /* allocate some space on the context stack for our purposes */ 835 /* allocate some space on the context stack for our purposes */
649 /* we manually unroll here, as usually 2 slots is enough */ 836 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
650 if (SLOT_COUNT >= 1) CXINC;
651 if (SLOT_COUNT >= 2) CXINC;
652 if (SLOT_COUNT >= 3) CXINC;
653 { 837 {
654 int i; 838 unsigned int i;
839
655 for (i = 3; i < SLOT_COUNT; ++i) 840 for (i = 0; i < SLOT_COUNT; ++i)
656 CXINC; 841 CXINC;
657 } 842
658 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 843 cxstack_ix -= SLOT_COUNT; /* undo allocation */
844 }
659 845
660 c->mainstack = PL_mainstack; 846 c->mainstack = PL_mainstack;
661 847
662 { 848 {
663 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 849 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
664 850
665 slot->defav = GvAV (PL_defgv); 851#if CORO_JIT
666 slot->defsv = DEFSV; 852 save_perl_slots (slot);
667 slot->errsv = ERRSV; 853#else
668 slot->irsgv = GvSV (irsgv);
669 slot->hinthv = GvHV (PL_hintgv);
670
671 #define VAR(name,type) slot->name = PL_ ## name; 854 #define VARx(name,expr,type) slot->name = expr;
672 # include "state.h" 855 #include "state.h"
673 #undef VAR 856#endif
674 } 857 }
675} 858}
676 859
677/* 860/*
678 * allocate various perl stacks. This is almost an exact copy 861 * allocate various perl stacks. This is almost an exact copy
… …
684# define coro_init_stacks(thx) init_stacks () 867# define coro_init_stacks(thx) init_stacks ()
685#else 868#else
686static void 869static void
687coro_init_stacks (pTHX) 870coro_init_stacks (pTHX)
688{ 871{
689 PL_curstackinfo = new_stackinfo(32, 8); 872 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
690 PL_curstackinfo->si_type = PERLSI_MAIN; 873 PL_curstackinfo->si_type = PERLSI_MAIN;
691 PL_curstack = PL_curstackinfo->si_stack; 874 PL_curstack = PL_curstackinfo->si_stack;
692 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 875 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
693 876
694 PL_stack_base = AvARRAY(PL_curstack); 877 PL_stack_base = AvARRAY(PL_curstack);
… …
709#endif 892#endif
710 893
711 New(54,PL_scopestack,8,I32); 894 New(54,PL_scopestack,8,I32);
712 PL_scopestack_ix = 0; 895 PL_scopestack_ix = 0;
713 PL_scopestack_max = 8; 896 PL_scopestack_max = 8;
897#if HAS_SCOPESTACK_NAME
898 New(54,PL_scopestack_name,8,const char*);
899#endif
714 900
715 New(54,PL_savestack,24,ANY); 901 New(54,PL_savestack,24,ANY);
716 PL_savestack_ix = 0; 902 PL_savestack_ix = 0;
717 PL_savestack_max = 24; 903 PL_savestack_max = 24;
718 904
… …
746 } 932 }
747 933
748 Safefree (PL_tmps_stack); 934 Safefree (PL_tmps_stack);
749 Safefree (PL_markstack); 935 Safefree (PL_markstack);
750 Safefree (PL_scopestack); 936 Safefree (PL_scopestack);
937#if HAS_SCOPESTACK_NAME
938 Safefree (PL_scopestack_name);
939#endif
751 Safefree (PL_savestack); 940 Safefree (PL_savestack);
752#if !PERL_VERSION_ATLEAST (5,10,0) 941#if !PERL_VERSION_ATLEAST (5,10,0)
753 Safefree (PL_retstack); 942 Safefree (PL_retstack);
754#endif 943#endif
755} 944}
… …
801#endif 990#endif
802 991
803/* 992/*
804 * This overrides the default magic get method of %SIG elements. 993 * This overrides the default magic get method of %SIG elements.
805 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 994 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
806 * and instead of trying to save and restore the hash elements, we just provide 995 * and instead of trying to save and restore the hash elements (extremely slow),
807 * readback here. 996 * we just provide our own readback here.
808 */ 997 */
809static int 998static int ecb_cold
810coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 999coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
811{ 1000{
812 const char *s = MgPV_nolen_const (mg); 1001 const char *s = MgPV_nolen_const (mg);
813 1002
814 if (*s == '_') 1003 if (*s == '_')
815 { 1004 {
816 SV **svp = 0; 1005 SV **svp = 0;
817 1006
818 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1007 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
819 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1008 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
820 1009
821 if (svp) 1010 if (svp)
822 { 1011 {
823 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1012 SV *ssv;
1013
1014 if (!*svp)
1015 ssv = &PL_sv_undef;
1016 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1017 ssv = sv_2mortal (newRV_inc (*svp));
1018 else
1019 ssv = *svp;
1020
1021 sv_setsv (sv, ssv);
824 return 0; 1022 return 0;
825 } 1023 }
826 } 1024 }
827 1025
828 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1026 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
829} 1027}
830 1028
831static int 1029static int ecb_cold
832coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1030coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
833{ 1031{
834 const char *s = MgPV_nolen_const (mg); 1032 const char *s = MgPV_nolen_const (mg);
835 1033
836 if (*s == '_') 1034 if (*s == '_')
… …
850 } 1048 }
851 1049
852 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1050 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
853} 1051}
854 1052
855static int 1053static int ecb_cold
856coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1054coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
857{ 1055{
858 const char *s = MgPV_nolen_const (mg); 1056 const char *s = MgPV_nolen_const (mg);
859 1057
860 if (*s == '_') 1058 if (*s == '_')
… …
893slf_check_repeat (pTHX_ struct CoroSLF *frame) 1091slf_check_repeat (pTHX_ struct CoroSLF *frame)
894{ 1092{
895 return 1; 1093 return 1;
896} 1094}
897 1095
898static UNOP coro_setup_op; 1096static UNOP init_perl_op;
899 1097
900static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1098ecb_noinline static void /* noinline to keep it out of the transfer fast path */
901coro_setup (pTHX_ struct coro *coro) 1099init_perl (pTHX_ struct coro *coro)
902{ 1100{
903 /* 1101 /*
904 * emulate part of the perl startup here. 1102 * emulate part of the perl startup here.
905 */ 1103 */
906 coro_init_stacks (aTHX); 1104 coro_init_stacks (aTHX);
… …
913 PL_comppad_name_fill = 0; 1111 PL_comppad_name_fill = 0;
914 PL_comppad_name_floor = 0; 1112 PL_comppad_name_floor = 0;
915 PL_curpm = 0; 1113 PL_curpm = 0;
916 PL_curpad = 0; 1114 PL_curpad = 0;
917 PL_localizing = 0; 1115 PL_localizing = 0;
918 PL_dirty = 0;
919 PL_restartop = 0; 1116 PL_restartop = 0;
920#if PERL_VERSION_ATLEAST (5,10,0) 1117#if PERL_VERSION_ATLEAST (5,10,0)
921 PL_parser = 0; 1118 PL_parser = 0;
922#endif 1119#endif
923 PL_hints = 0; 1120 PL_hints = 0;
924 1121
925 /* recreate the die/warn hooks */ 1122 /* recreate the die/warn hooks */
926 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1123 PL_diehook = SvREFCNT_inc (rv_diehook);
927 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1124 PL_warnhook = SvREFCNT_inc (rv_warnhook);
928 1125
929 GvSV (PL_defgv) = newSV (0); 1126 GvSV (PL_defgv) = newSV (0);
930 GvAV (PL_defgv) = coro->args; coro->args = 0; 1127 GvAV (PL_defgv) = coro->args; coro->args = 0;
931 GvSV (PL_errgv) = newSV (0); 1128 GvSV (PL_errgv) = newSV (0);
932 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1129 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
933 GvHV (PL_hintgv) = 0; 1130 GvHV (PL_hintgv) = 0;
… …
953 /* this newly created coroutine might be run on an existing cctx which most 1150 /* this newly created coroutine might be run on an existing cctx which most
954 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1151 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
955 */ 1152 */
956 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1153 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
957 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1154 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1155 slf_frame.destroy = 0;
958 1156
959 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1157 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
960 coro_setup_op.op_next = PL_op; 1158 init_perl_op.op_next = PL_op;
961 coro_setup_op.op_type = OP_ENTERSUB; 1159 init_perl_op.op_type = OP_ENTERSUB;
962 coro_setup_op.op_ppaddr = pp_slf; 1160 init_perl_op.op_ppaddr = pp_slf;
963 /* no flags etc. required, as an init function won't be called */ 1161 /* no flags etc. required, as an init function won't be called */
964 1162
965 PL_op = (OP *)&coro_setup_op; 1163 PL_op = (OP *)&init_perl_op;
966 1164
967 /* copy throw, in case it was set before coro_setup */ 1165 /* copy throw, in case it was set before init_perl */
968 CORO_THROW = coro->except; 1166 CORO_THROW = coro->except;
1167
1168 SWAP_SVS (coro);
1169
1170 if (ecb_expect_false (enable_times))
1171 {
1172 coro_times_update ();
1173 coro_times_sub (coro);
1174 }
969} 1175}
970 1176
971static void 1177static void
972coro_unwind_stacks (pTHX) 1178coro_unwind_stacks (pTHX)
973{ 1179{
… …
988 dounwind (-1); 1194 dounwind (-1);
989 } 1195 }
990} 1196}
991 1197
992static void 1198static void
993coro_destruct_perl (pTHX_ struct coro *coro) 1199destroy_perl (pTHX_ struct coro *coro)
994{ 1200{
1201 SV *svf [9];
1202
1203 {
1204 SV *old_current = SvRV (coro_current);
1205 struct coro *current = SvSTATE (old_current);
1206
1207 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1208
1209 save_perl (aTHX_ current);
1210
1211 /* this will cause transfer_check to croak on block*/
1212 SvRV_set (coro_current, (SV *)coro->hv);
1213
1214 load_perl (aTHX_ coro);
1215
995 coro_unwind_stacks (aTHX); 1216 coro_unwind_stacks (aTHX);
996 1217
997 SvREFCNT_dec (GvSV (PL_defgv)); 1218 /* restore swapped sv's */
998 SvREFCNT_dec (GvAV (PL_defgv)); 1219 SWAP_SVS (coro);
999 SvREFCNT_dec (GvSV (PL_errgv));
1000 SvREFCNT_dec (PL_defoutgv);
1001 SvREFCNT_dec (PL_rs);
1002 SvREFCNT_dec (GvSV (irsgv));
1003 SvREFCNT_dec (GvHV (PL_hintgv));
1004 1220
1005 SvREFCNT_dec (PL_diehook); 1221 coro_destruct_stacks (aTHX);
1006 SvREFCNT_dec (PL_warnhook); 1222
1223 /* now save some sv's to be free'd later */
1224 svf [0] = GvSV (PL_defgv);
1225 svf [1] = (SV *)GvAV (PL_defgv);
1226 svf [2] = GvSV (PL_errgv);
1227 svf [3] = (SV *)PL_defoutgv;
1228 svf [4] = PL_rs;
1229 svf [5] = GvSV (irsgv);
1230 svf [6] = (SV *)GvHV (PL_hintgv);
1231 svf [7] = PL_diehook;
1232 svf [8] = PL_warnhook;
1233 assert (9 == sizeof (svf) / sizeof (*svf));
1234
1235 SvRV_set (coro_current, old_current);
1236
1237 load_perl (aTHX_ current);
1007 1238 }
1239
1240 {
1241 unsigned int i;
1242
1243 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1244 SvREFCNT_dec (svf [i]);
1245
1008 SvREFCNT_dec (coro->saved_deffh); 1246 SvREFCNT_dec (coro->saved_deffh);
1009 SvREFCNT_dec (coro->rouse_cb); 1247 SvREFCNT_dec (coro->rouse_cb);
1010 SvREFCNT_dec (coro->invoke_cb); 1248 SvREFCNT_dec (coro->invoke_cb);
1011 SvREFCNT_dec (coro->invoke_av); 1249 SvREFCNT_dec (coro->invoke_av);
1012 1250 }
1013 coro_destruct_stacks (aTHX);
1014} 1251}
1015 1252
1016INLINE void 1253ecb_inline void
1017free_coro_mortal (pTHX) 1254free_coro_mortal (pTHX)
1018{ 1255{
1019 if (expect_true (coro_mortal)) 1256 if (ecb_expect_true (coro_mortal))
1020 { 1257 {
1021 SvREFCNT_dec (coro_mortal); 1258 SvREFCNT_dec ((SV *)coro_mortal);
1022 coro_mortal = 0; 1259 coro_mortal = 0;
1023 } 1260 }
1024} 1261}
1025 1262
1026static int 1263static int
… …
1159 1396
1160 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1397 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1161} 1398}
1162 1399
1163/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1400/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1164static void NOINLINE 1401static void ecb_noinline
1165cctx_prepare (pTHX) 1402cctx_prepare (pTHX)
1166{ 1403{
1167 PL_top_env = &PL_start_env; 1404 PL_top_env = &PL_start_env;
1168 1405
1169 if (cctx_current->flags & CC_TRACE) 1406 if (cctx_current->flags & CC_TRACE)
… …
1180 slf_frame.prepare = slf_prepare_set_stacklevel; 1417 slf_frame.prepare = slf_prepare_set_stacklevel;
1181 slf_frame.check = slf_check_set_stacklevel; 1418 slf_frame.check = slf_check_set_stacklevel;
1182} 1419}
1183 1420
1184/* the tail of transfer: execute stuff we can only do after a transfer */ 1421/* the tail of transfer: execute stuff we can only do after a transfer */
1185INLINE void 1422ecb_inline void
1186transfer_tail (pTHX) 1423transfer_tail (pTHX)
1187{ 1424{
1188 free_coro_mortal (aTHX); 1425 free_coro_mortal (aTHX);
1426}
1427
1428/* try to exit the same way perl's main function would do */
1429/* we do not bother resetting the environment or other things *7
1430/* that are not, uhm, essential */
1431/* this obviously also doesn't work when perl is embedded */
1432static void ecb_noinline ecb_cold
1433perlish_exit (pTHX)
1434{
1435 int exitstatus = perl_destruct (PL_curinterp);
1436 perl_free (PL_curinterp);
1437 exit (exitstatus);
1189} 1438}
1190 1439
1191/* 1440/*
1192 * this is a _very_ stripped down perl interpreter ;) 1441 * this is a _very_ stripped down perl interpreter ;)
1193 */ 1442 */
… …
1215 /* somebody or something will hit me for both perl_run and PL_restartop */ 1464 /* somebody or something will hit me for both perl_run and PL_restartop */
1216 PL_restartop = PL_op; 1465 PL_restartop = PL_op;
1217 perl_run (PL_curinterp); 1466 perl_run (PL_curinterp);
1218 /* 1467 /*
1219 * Unfortunately, there is no way to get at the return values of the 1468 * Unfortunately, there is no way to get at the return values of the
1220 * coro body here, as perl_run destroys these 1469 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1470 * runtime errors here, as this is just a random interpreter, not a thread.
1221 */ 1471 */
1222 1472
1223 /* 1473 /*
1224 * If perl-run returns we assume exit() was being called or the coro 1474 * If perl-run returns we assume exit() was being called or the coro
1225 * fell off the end, which seems to be the only valid (non-bug) 1475 * fell off the end, which seems to be the only valid (non-bug)
1226 * reason for perl_run to return. We try to exit by jumping to the 1476 * reason for perl_run to return. We try to mimic whatever perl is normally
1227 * bootstrap-time "top" top_env, as we cannot restore the "main" 1477 * doing in that case. YMMV.
1228 * coroutine as Coro has no such concept.
1229 * This actually isn't valid with the pthread backend, but OSes requiring
1230 * that backend are too broken to do it in a standards-compliant way.
1231 */ 1478 */
1232 PL_top_env = main_top_env; 1479 perlish_exit (aTHX);
1233 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1234 } 1480 }
1235} 1481}
1236 1482
1237static coro_cctx * 1483static coro_cctx *
1238cctx_new () 1484cctx_new (void)
1239{ 1485{
1240 coro_cctx *cctx; 1486 coro_cctx *cctx;
1241 1487
1242 ++cctx_count; 1488 ++cctx_count;
1243 New (0, cctx, 1, coro_cctx); 1489 New (0, cctx, 1, coro_cctx);
… …
1249 return cctx; 1495 return cctx;
1250} 1496}
1251 1497
1252/* create a new cctx only suitable as source */ 1498/* create a new cctx only suitable as source */
1253static coro_cctx * 1499static coro_cctx *
1254cctx_new_empty () 1500cctx_new_empty (void)
1255{ 1501{
1256 coro_cctx *cctx = cctx_new (); 1502 coro_cctx *cctx = cctx_new ();
1257 1503
1258 cctx->sptr = 0; 1504 cctx->stack.sptr = 0;
1259 coro_create (&cctx->cctx, 0, 0, 0, 0); 1505 coro_create (&cctx->cctx, 0, 0, 0, 0);
1260 1506
1261 return cctx; 1507 return cctx;
1262} 1508}
1263 1509
1264/* create a new cctx suitable as destination/running a perl interpreter */ 1510/* create a new cctx suitable as destination/running a perl interpreter */
1265static coro_cctx * 1511static coro_cctx *
1266cctx_new_run () 1512cctx_new_run (void)
1267{ 1513{
1268 coro_cctx *cctx = cctx_new (); 1514 coro_cctx *cctx = cctx_new ();
1269 void *stack_start;
1270 size_t stack_size;
1271 1515
1272#if HAVE_MMAP 1516 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1273 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1274 /* mmap supposedly does allocate-on-write for us */
1275 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1276
1277 if (cctx->sptr != (void *)-1)
1278 {
1279 #if CORO_STACKGUARD
1280 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1281 #endif
1282 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1283 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1284 cctx->flags |= CC_MAPPED;
1285 } 1517 {
1286 else
1287#endif
1288 {
1289 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1290 New (0, cctx->sptr, cctx_stacksize, long);
1291
1292 if (!cctx->sptr)
1293 {
1294 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1518 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1295 _exit (EXIT_FAILURE); 1519 _exit (EXIT_FAILURE);
1296 }
1297
1298 stack_start = cctx->sptr;
1299 stack_size = cctx->ssize;
1300 } 1520 }
1301 1521
1302 #if CORO_USE_VALGRIND
1303 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1304 #endif
1305
1306 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1522 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1307 1523
1308 return cctx; 1524 return cctx;
1309} 1525}
1310 1526
1311static void 1527static void
1312cctx_destroy (coro_cctx *cctx) 1528cctx_destroy (coro_cctx *cctx)
1313{ 1529{
1314 if (!cctx) 1530 if (!cctx)
1315 return; 1531 return;
1316 1532
1317 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1533 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1318 1534
1319 --cctx_count; 1535 --cctx_count;
1320 coro_destroy (&cctx->cctx); 1536 coro_destroy (&cctx->cctx);
1321 1537
1322 /* coro_transfer creates new, empty cctx's */ 1538 coro_stack_free (&cctx->stack);
1323 if (cctx->sptr)
1324 {
1325 #if CORO_USE_VALGRIND
1326 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1327 #endif
1328
1329#if HAVE_MMAP
1330 if (cctx->flags & CC_MAPPED)
1331 munmap (cctx->sptr, cctx->ssize);
1332 else
1333#endif
1334 Safefree (cctx->sptr);
1335 }
1336 1539
1337 Safefree (cctx); 1540 Safefree (cctx);
1338} 1541}
1339 1542
1340/* wether this cctx should be destructed */ 1543/* wether this cctx should be destructed */
1341#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1544#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1342 1545
1343static coro_cctx * 1546static coro_cctx *
1344cctx_get (pTHX) 1547cctx_get (pTHX)
1345{ 1548{
1346 while (expect_true (cctx_first)) 1549 while (ecb_expect_true (cctx_first))
1347 { 1550 {
1348 coro_cctx *cctx = cctx_first; 1551 coro_cctx *cctx = cctx_first;
1349 cctx_first = cctx->next; 1552 cctx_first = cctx->next;
1350 --cctx_idle; 1553 --cctx_idle;
1351 1554
1352 if (expect_true (!CCTX_EXPIRED (cctx))) 1555 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1353 return cctx; 1556 return cctx;
1354 1557
1355 cctx_destroy (cctx); 1558 cctx_destroy (cctx);
1356 } 1559 }
1357 1560
… …
1359} 1562}
1360 1563
1361static void 1564static void
1362cctx_put (coro_cctx *cctx) 1565cctx_put (coro_cctx *cctx)
1363{ 1566{
1364 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1567 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1365 1568
1366 /* free another cctx if overlimit */ 1569 /* free another cctx if overlimit */
1367 if (expect_false (cctx_idle >= cctx_max_idle)) 1570 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1368 { 1571 {
1369 coro_cctx *first = cctx_first; 1572 coro_cctx *first = cctx_first;
1370 cctx_first = first->next; 1573 cctx_first = first->next;
1371 --cctx_idle; 1574 --cctx_idle;
1372 1575
… …
1383static void 1586static void
1384transfer_check (pTHX_ struct coro *prev, struct coro *next) 1587transfer_check (pTHX_ struct coro *prev, struct coro *next)
1385{ 1588{
1386 /* TODO: throwing up here is considered harmful */ 1589 /* TODO: throwing up here is considered harmful */
1387 1590
1388 if (expect_true (prev != next)) 1591 if (ecb_expect_true (prev != next))
1389 { 1592 {
1390 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1593 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1391 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1594 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1392 1595
1393 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1596 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1394 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1597 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1395 1598
1396#if !PERL_VERSION_ATLEAST (5,10,0) 1599#if !PERL_VERSION_ATLEAST (5,10,0)
1397 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1600 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1398 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1601 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1399#endif 1602#endif
1400 } 1603 }
1401} 1604}
1402 1605
1403/* always use the TRANSFER macro */ 1606/* always use the TRANSFER macro */
1404static void NOINLINE /* noinline so we have a fixed stackframe */ 1607static void ecb_noinline /* noinline so we have a fixed stackframe */
1405transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1608transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1406{ 1609{
1407 dSTACKLEVEL; 1610 dSTACKLEVEL;
1408 1611
1409 /* sometimes transfer is only called to set idle_sp */ 1612 /* sometimes transfer is only called to set idle_sp */
1410 if (expect_false (!prev)) 1613 if (ecb_expect_false (!prev))
1411 { 1614 {
1412 cctx_current->idle_sp = STACKLEVEL; 1615 cctx_current->idle_sp = STACKLEVEL;
1413 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1616 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1414 } 1617 }
1415 else if (expect_true (prev != next)) 1618 else if (ecb_expect_true (prev != next))
1416 { 1619 {
1417 coro_cctx *cctx_prev; 1620 coro_cctx *cctx_prev;
1418 1621
1419 if (expect_false (prev->flags & CF_NEW)) 1622 if (ecb_expect_false (prev->flags & CF_NEW))
1420 { 1623 {
1421 /* create a new empty/source context */ 1624 /* create a new empty/source context */
1422 prev->flags &= ~CF_NEW; 1625 prev->flags &= ~CF_NEW;
1423 prev->flags |= CF_RUNNING; 1626 prev->flags |= CF_RUNNING;
1424 } 1627 }
… …
1427 next->flags |= CF_RUNNING; 1630 next->flags |= CF_RUNNING;
1428 1631
1429 /* first get rid of the old state */ 1632 /* first get rid of the old state */
1430 save_perl (aTHX_ prev); 1633 save_perl (aTHX_ prev);
1431 1634
1432 if (expect_false (next->flags & CF_NEW)) 1635 if (ecb_expect_false (next->flags & CF_NEW))
1433 { 1636 {
1434 /* need to start coroutine */ 1637 /* need to start coroutine */
1435 next->flags &= ~CF_NEW; 1638 next->flags &= ~CF_NEW;
1436 /* setup coroutine call */ 1639 /* setup coroutine call */
1437 coro_setup (aTHX_ next); 1640 init_perl (aTHX_ next);
1438 } 1641 }
1439 else 1642 else
1440 load_perl (aTHX_ next); 1643 load_perl (aTHX_ next);
1441 1644
1442 /* possibly untie and reuse the cctx */ 1645 /* possibly untie and reuse the cctx */
1443 if (expect_true ( 1646 if (ecb_expect_true (
1444 cctx_current->idle_sp == STACKLEVEL 1647 cctx_current->idle_sp == STACKLEVEL
1445 && !(cctx_current->flags & CC_TRACE) 1648 && !(cctx_current->flags & CC_TRACE)
1446 && !force_cctx 1649 && !force_cctx
1447 )) 1650 ))
1448 { 1651 {
1449 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1652 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1450 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1653 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1451 1654
1452 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1655 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1453 /* without this the next cctx_get might destroy the running cctx while still in use */ 1656 /* without this the next cctx_get might destroy the running cctx while still in use */
1454 if (expect_false (CCTX_EXPIRED (cctx_current))) 1657 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1455 if (expect_true (!next->cctx)) 1658 if (ecb_expect_true (!next->cctx))
1456 next->cctx = cctx_get (aTHX); 1659 next->cctx = cctx_get (aTHX);
1457 1660
1458 cctx_put (cctx_current); 1661 cctx_put (cctx_current);
1459 } 1662 }
1460 else 1663 else
1461 prev->cctx = cctx_current; 1664 prev->cctx = cctx_current;
1462 1665
1463 ++next->usecount; 1666 ++next->usecount;
1464 1667
1465 cctx_prev = cctx_current; 1668 cctx_prev = cctx_current;
1466 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1669 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1467 1670
1468 next->cctx = 0; 1671 next->cctx = 0;
1469 1672
1470 if (expect_false (cctx_prev != cctx_current)) 1673 if (ecb_expect_false (cctx_prev != cctx_current))
1471 { 1674 {
1472 cctx_prev->top_env = PL_top_env; 1675 cctx_prev->top_env = PL_top_env;
1473 PL_top_env = cctx_current->top_env; 1676 PL_top_env = cctx_current->top_env;
1474 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1677 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1475 } 1678 }
… …
1481#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1684#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1482#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1685#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1483 1686
1484/** high level stuff ********************************************************/ 1687/** high level stuff ********************************************************/
1485 1688
1689/* this function is actually Coro, not Coro::State, but we call it from here */
1690/* because it is convenient - but it hasn't been declared yet for that reason */
1486static int 1691static void
1692coro_call_on_destroy (pTHX_ struct coro *coro);
1693
1694static void
1487coro_state_destroy (pTHX_ struct coro *coro) 1695coro_state_destroy (pTHX_ struct coro *coro)
1488{ 1696{
1489 if (coro->flags & CF_DESTROYED) 1697 if (coro->flags & CF_ZOMBIE)
1490 return 0; 1698 return;
1491 1699
1492 if (coro->on_destroy && !PL_dirty)
1493 coro->on_destroy (aTHX_ coro); 1700 slf_destroy (aTHX_ coro);
1494 1701
1495 coro->flags |= CF_DESTROYED; 1702 coro->flags |= CF_ZOMBIE;
1496 1703
1497 if (coro->flags & CF_READY) 1704 if (coro->flags & CF_READY)
1498 { 1705 {
1499 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1706 /* reduce nready, as destroying a ready coro effectively unreadies it */
1500 /* alternative: look through all ready queues and remove the coro */ 1707 /* alternative: look through all ready queues and remove the coro */
1501 --coro_nready; 1708 --coro_nready;
1502 } 1709 }
1503 else 1710 else
1504 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1711 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1712
1713 if (coro->next) coro->next->prev = coro->prev;
1714 if (coro->prev) coro->prev->next = coro->next;
1715 if (coro == coro_first) coro_first = coro->next;
1505 1716
1506 if (coro->mainstack 1717 if (coro->mainstack
1507 && coro->mainstack != main_mainstack 1718 && coro->mainstack != main_mainstack
1508 && coro->slot 1719 && coro->slot
1509 && !PL_dirty) 1720 && !PL_dirty)
1510 {
1511 struct coro *current = SvSTATE_current;
1512
1513 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1514
1515 save_perl (aTHX_ current);
1516 load_perl (aTHX_ coro);
1517
1518 coro_destruct_perl (aTHX_ coro); 1721 destroy_perl (aTHX_ coro);
1519
1520 load_perl (aTHX_ current);
1521
1522 coro->slot = 0;
1523 }
1524 1722
1525 cctx_destroy (coro->cctx); 1723 cctx_destroy (coro->cctx);
1526 SvREFCNT_dec (coro->startcv); 1724 SvREFCNT_dec (coro->startcv);
1527 SvREFCNT_dec (coro->args); 1725 SvREFCNT_dec (coro->args);
1726 SvREFCNT_dec (coro->swap_sv);
1528 SvREFCNT_dec (CORO_THROW); 1727 SvREFCNT_dec (CORO_THROW);
1529 1728
1530 if (coro->next) coro->next->prev = coro->prev; 1729 coro_call_on_destroy (aTHX_ coro);
1531 if (coro->prev) coro->prev->next = coro->next;
1532 if (coro == coro_first) coro_first = coro->next;
1533 1730
1534 return 1; 1731 /* more destruction mayhem in coro_state_free */
1535} 1732}
1536 1733
1537static int 1734static int
1538coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1735coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1539{ 1736{
1540 struct coro *coro = (struct coro *)mg->mg_ptr; 1737 struct coro *coro = (struct coro *)mg->mg_ptr;
1541 mg->mg_ptr = 0; 1738 mg->mg_ptr = 0;
1542 1739
1543 coro->hv = 0;
1544
1545 if (--coro->refcnt < 0)
1546 {
1547 coro_state_destroy (aTHX_ coro); 1740 coro_state_destroy (aTHX_ coro);
1741 SvREFCNT_dec (coro->on_destroy);
1742 SvREFCNT_dec (coro->status);
1743
1548 Safefree (coro); 1744 Safefree (coro);
1549 }
1550 1745
1551 return 0; 1746 return 0;
1552} 1747}
1553 1748
1554static int 1749static int ecb_cold
1555coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1750coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1556{ 1751{
1557 struct coro *coro = (struct coro *)mg->mg_ptr; 1752 /* called when perl clones the current process the slow way (windows process emulation) */
1558 1753 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1559 ++coro->refcnt; 1754 mg->mg_ptr = 0;
1755 mg->mg_virtual = 0;
1560 1756
1561 return 0; 1757 return 0;
1562} 1758}
1563 1759
1564static MGVTBL coro_state_vtbl = { 1760static MGVTBL coro_state_vtbl = {
… …
1587 1783
1588 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1784 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1589 TRANSFER (ta, 1); 1785 TRANSFER (ta, 1);
1590} 1786}
1591 1787
1592/*****************************************************************************/
1593/* gensub: simple closure generation utility */
1594
1595#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1596
1597/* create a closure from XS, returns a code reference */
1598/* the arg can be accessed via GENSUB_ARG from the callback */
1599/* the callback must use dXSARGS/XSRETURN */
1600static SV *
1601gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1602{
1603 CV *cv = (CV *)newSV (0);
1604
1605 sv_upgrade ((SV *)cv, SVt_PVCV);
1606
1607 CvANON_on (cv);
1608 CvISXSUB_on (cv);
1609 CvXSUB (cv) = xsub;
1610 GENSUB_ARG = arg;
1611
1612 return newRV_noinc ((SV *)cv);
1613}
1614
1615/** Coro ********************************************************************/ 1788/** Coro ********************************************************************/
1616 1789
1617INLINE void 1790ecb_inline void
1618coro_enq (pTHX_ struct coro *coro) 1791coro_enq (pTHX_ struct coro *coro)
1619{ 1792{
1620 struct coro **ready = coro_ready [coro->prio - PRIO_MIN]; 1793 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1621 1794
1622 SvREFCNT_inc_NN (coro->hv); 1795 SvREFCNT_inc_NN (coro->hv);
1623 1796
1624 coro->next_ready = 0; 1797 coro->next_ready = 0;
1625 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1798 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1626 ready [1] = coro; 1799 ready [1] = coro;
1627} 1800}
1628 1801
1629INLINE struct coro * 1802ecb_inline struct coro *
1630coro_deq (pTHX) 1803coro_deq (pTHX)
1631{ 1804{
1632 int prio; 1805 int prio;
1633 1806
1634 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1807 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1635 { 1808 {
1636 struct coro **ready = coro_ready [prio]; 1809 struct coro **ready = coro_ready [prio];
1637 1810
1638 if (ready [0]) 1811 if (ready [0])
1639 { 1812 {
1640 struct coro *coro = ready [0]; 1813 struct coro *coro = ready [0];
1641 ready [0] = coro->next_ready; 1814 ready [0] = coro->next_ready;
1642 return coro; 1815 return coro;
1643 } 1816 }
1644 } 1817 }
1818
1819 return 0;
1820}
1821
1822static void
1823invoke_sv_ready_hook_helper (void)
1824{
1825 dTHX;
1826 dSP;
1827
1828 ENTER;
1829 SAVETMPS;
1830
1831 PUSHMARK (SP);
1832 PUTBACK;
1833 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1834
1835 FREETMPS;
1836 LEAVE;
1645} 1837}
1646 1838
1647static int 1839static int
1648api_ready (pTHX_ SV *coro_sv) 1840api_ready (pTHX_ SV *coro_sv)
1649{ 1841{
1650 struct coro *coro;
1651 SV *sv_hook;
1652 void (*xs_hook)(void);
1653
1654 coro = SvSTATE (coro_sv); 1842 struct coro *coro = SvSTATE (coro_sv);
1655 1843
1656 if (coro->flags & CF_READY) 1844 if (coro->flags & CF_READY)
1657 return 0; 1845 return 0;
1658 1846
1659 coro->flags |= CF_READY; 1847 coro->flags |= CF_READY;
1660 1848
1661 sv_hook = coro_nready ? 0 : coro_readyhook;
1662 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1663
1664 coro_enq (aTHX_ coro); 1849 coro_enq (aTHX_ coro);
1665 ++coro_nready;
1666 1850
1667 if (sv_hook) 1851 if (!coro_nready++)
1668 { 1852 if (coroapi.readyhook)
1669 dSP; 1853 coroapi.readyhook ();
1670
1671 ENTER;
1672 SAVETMPS;
1673
1674 PUSHMARK (SP);
1675 PUTBACK;
1676 call_sv (sv_hook, G_VOID | G_DISCARD);
1677
1678 FREETMPS;
1679 LEAVE;
1680 }
1681
1682 if (xs_hook)
1683 xs_hook ();
1684 1854
1685 return 1; 1855 return 1;
1686} 1856}
1687 1857
1688static int 1858static int
… …
1690{ 1860{
1691 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1861 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1692} 1862}
1693 1863
1694/* expects to own a reference to next->hv */ 1864/* expects to own a reference to next->hv */
1695INLINE void 1865ecb_inline void
1696prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1866prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1697{ 1867{
1698 SV *prev_sv = SvRV (coro_current); 1868 SV *prev_sv = SvRV (coro_current);
1699 1869
1700 ta->prev = SvSTATE_hv (prev_sv); 1870 ta->prev = SvSTATE_hv (prev_sv);
… …
1713{ 1883{
1714 for (;;) 1884 for (;;)
1715 { 1885 {
1716 struct coro *next = coro_deq (aTHX); 1886 struct coro *next = coro_deq (aTHX);
1717 1887
1718 if (expect_true (next)) 1888 if (ecb_expect_true (next))
1719 { 1889 {
1720 /* cannot transfer to destroyed coros, skip and look for next */ 1890 /* cannot transfer to destroyed coros, skip and look for next */
1721 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1891 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1722 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1892 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1723 else 1893 else
1724 { 1894 {
1725 next->flags &= ~CF_READY; 1895 next->flags &= ~CF_READY;
1726 --coro_nready; 1896 --coro_nready;
… …
1733 { 1903 {
1734 /* nothing to schedule: call the idle handler */ 1904 /* nothing to schedule: call the idle handler */
1735 if (SvROK (sv_idle) 1905 if (SvROK (sv_idle)
1736 && SvOBJECT (SvRV (sv_idle))) 1906 && SvOBJECT (SvRV (sv_idle)))
1737 { 1907 {
1908 if (SvRV (sv_idle) == SvRV (coro_current))
1909 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1910
1738 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1911 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1739 api_ready (aTHX_ SvRV (sv_idle)); 1912 api_ready (aTHX_ SvRV (sv_idle));
1740 --coro_nready; 1913 --coro_nready;
1741 } 1914 }
1742 else 1915 else
1743 { 1916 {
1917 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1744 dSP; 1918 dSP;
1745 1919
1746 ENTER; 1920 ENTER;
1747 SAVETMPS; 1921 SAVETMPS;
1748 1922
… …
1755 } 1929 }
1756 } 1930 }
1757 } 1931 }
1758} 1932}
1759 1933
1760INLINE void 1934ecb_inline void
1761prepare_cede (pTHX_ struct coro_transfer_args *ta) 1935prepare_cede (pTHX_ struct coro_transfer_args *ta)
1762{ 1936{
1763 api_ready (aTHX_ coro_current); 1937 api_ready (aTHX_ coro_current);
1764 prepare_schedule (aTHX_ ta); 1938 prepare_schedule (aTHX_ ta);
1765} 1939}
1766 1940
1767INLINE void 1941ecb_inline void
1768prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1942prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1769{ 1943{
1770 SV *prev = SvRV (coro_current); 1944 SV *prev = SvRV (coro_current);
1771 1945
1772 if (coro_nready) 1946 if (coro_nready)
… …
1802{ 1976{
1803 struct coro_transfer_args ta; 1977 struct coro_transfer_args ta;
1804 1978
1805 prepare_cede (aTHX_ &ta); 1979 prepare_cede (aTHX_ &ta);
1806 1980
1807 if (expect_true (ta.prev != ta.next)) 1981 if (ecb_expect_true (ta.prev != ta.next))
1808 { 1982 {
1809 TRANSFER (ta, 1); 1983 TRANSFER (ta, 1);
1810 return 1; 1984 return 1;
1811 } 1985 }
1812 else 1986 else
… …
1855 coro->slot->runops = RUNOPS_DEFAULT; 2029 coro->slot->runops = RUNOPS_DEFAULT;
1856 } 2030 }
1857} 2031}
1858 2032
1859static void 2033static void
2034coro_push_av (pTHX_ AV *av, I32 gimme_v)
2035{
2036 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2037 {
2038 dSP;
2039
2040 if (gimme_v == G_SCALAR)
2041 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2042 else
2043 {
2044 int i;
2045 EXTEND (SP, AvFILLp (av) + 1);
2046
2047 for (i = 0; i <= AvFILLp (av); ++i)
2048 PUSHs (AvARRAY (av)[i]);
2049 }
2050
2051 PUTBACK;
2052 }
2053}
2054
2055static void
2056coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2057{
2058 if (!coro->on_destroy)
2059 coro->on_destroy = newAV ();
2060
2061 av_push (coro->on_destroy, cb);
2062}
2063
2064static void
2065slf_destroy_join (pTHX_ struct CoroSLF *frame)
2066{
2067 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2068}
2069
2070static int
2071slf_check_join (pTHX_ struct CoroSLF *frame)
2072{
2073 struct coro *coro = (struct coro *)frame->data;
2074
2075 if (!coro->status)
2076 return 1;
2077
2078 frame->destroy = 0;
2079
2080 coro_push_av (aTHX_ coro->status, GIMME_V);
2081
2082 SvREFCNT_dec ((SV *)coro->hv);
2083
2084 return 0;
2085}
2086
2087static void
2088slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2089{
2090 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2091
2092 if (items > 1)
2093 croak ("join called with too many arguments");
2094
2095 if (coro->status)
2096 frame->prepare = prepare_nop;
2097 else
2098 {
2099 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2100 frame->prepare = prepare_schedule;
2101 }
2102
2103 frame->check = slf_check_join;
2104 frame->destroy = slf_destroy_join;
2105 frame->data = (void *)coro;
2106 SvREFCNT_inc (coro->hv);
2107}
2108
2109static void
1860coro_call_on_destroy (pTHX_ struct coro *coro) 2110coro_call_on_destroy (pTHX_ struct coro *coro)
1861{ 2111{
1862 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2112 AV *od = coro->on_destroy;
1863 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1864 2113
1865 if (on_destroyp) 2114 if (!od)
1866 { 2115 return;
1867 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1868 2116
2117 coro->on_destroy = 0;
2118 sv_2mortal ((SV *)od);
2119
1869 while (AvFILLp (on_destroy) >= 0) 2120 while (AvFILLp (od) >= 0)
2121 {
2122 SV *cb = sv_2mortal (av_pop (od));
2123
2124 /* coro hv's (and only hv's at the moment) are supported as well */
2125 if (SvSTATEhv_p (aTHX_ cb))
2126 api_ready (aTHX_ cb);
2127 else
1870 { 2128 {
1871 dSP; /* don't disturb outer sp */ 2129 dSP; /* don't disturb outer sp */
1872 SV *cb = av_pop (on_destroy);
1873
1874 PUSHMARK (SP); 2130 PUSHMARK (SP);
1875 2131
1876 if (statusp) 2132 if (coro->status)
1877 { 2133 {
1878 int i; 2134 PUTBACK;
1879 AV *status = (AV *)SvRV (*statusp); 2135 coro_push_av (aTHX_ coro->status, G_ARRAY);
1880 EXTEND (SP, AvFILLp (status) + 1); 2136 SPAGAIN;
1881
1882 for (i = 0; i <= AvFILLp (status); ++i)
1883 PUSHs (AvARRAY (status)[i]);
1884 } 2137 }
1885 2138
1886 PUTBACK; 2139 PUTBACK;
1887 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2140 call_sv (cb, G_VOID | G_DISCARD);
1888 } 2141 }
1889 } 2142 }
1890} 2143}
1891 2144
1892static void 2145static void
1893slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2146coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1894{ 2147{
2148 AV *av;
2149
2150 if (coro->status)
2151 {
2152 av = coro->status;
2153 av_clear (av);
2154 }
2155 else
2156 av = coro->status = newAV ();
2157
2158 /* items are actually not so common, so optimise for this case */
2159 if (items)
2160 {
1895 int i; 2161 int i;
1896 HV *hv = (HV *)SvRV (coro_current);
1897 AV *av = newAV ();
1898 2162
1899 av_extend (av, items - 1); 2163 av_extend (av, items - 1);
2164
1900 for (i = 0; i < items; ++i) 2165 for (i = 0; i < items; ++i)
1901 av_push (av, SvREFCNT_inc_NN (arg [i])); 2166 av_push (av, SvREFCNT_inc_NN (arg [i]));
2167 }
2168}
1902 2169
1903 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2170static void
1904 2171slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2172{
1905 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2173 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1906 api_ready (aTHX_ sv_manager); 2174 api_ready (aTHX_ sv_manager);
1907 2175
1908 frame->prepare = prepare_schedule; 2176 frame->prepare = prepare_schedule;
1909 frame->check = slf_check_repeat; 2177 frame->check = slf_check_repeat;
1910 2178
1911 /* as a minor optimisation, we could unwind all stacks here */ 2179 /* as a minor optimisation, we could unwind all stacks here */
1912 /* but that puts extra pressure on pp_slf, and is not worth much */ 2180 /* but that puts extra pressure on pp_slf, and is not worth much */
1913 /*coro_unwind_stacks (aTHX);*/ 2181 /*coro_unwind_stacks (aTHX);*/
2182}
2183
2184static void
2185slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2186{
2187 HV *coro_hv = (HV *)SvRV (coro_current);
2188
2189 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2190 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2191}
2192
2193static void
2194slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2195{
2196 HV *coro_hv;
2197 struct coro *coro;
2198
2199 if (items <= 0)
2200 croak ("Coro::cancel called without coro object,");
2201
2202 coro = SvSTATE (arg [0]);
2203 coro_hv = coro->hv;
2204
2205 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2206
2207 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2208 {
2209 /* coro currently busy cancelling something, so just notify it */
2210 coro->slf_frame.data = (void *)coro;
2211
2212 frame->prepare = prepare_nop;
2213 frame->check = slf_check_nop;
2214 }
2215 else if (coro_hv == (HV *)SvRV (coro_current))
2216 {
2217 /* cancelling the current coro is allowed, and equals terminate */
2218 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2219 }
2220 else
2221 {
2222 struct coro *self = SvSTATE_current;
2223
2224 /* otherwise we cancel directly, purely for speed reasons
2225 * unfortunately, this requires some magic trickery, as
2226 * somebody else could cancel us, so we have to fight the cancellation.
2227 * this is ugly, and hopefully fully worth the extra speed.
2228 * besides, I can't get the slow-but-safe version working...
2229 */
2230 slf_frame.data = 0;
2231 self->flags |= CF_NOCANCEL;
2232 coro_state_destroy (aTHX_ coro);
2233 self->flags &= ~CF_NOCANCEL;
2234
2235 if (slf_frame.data)
2236 {
2237 /* while we were busy we have been cancelled, so terminate */
2238 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2239 }
2240 else
2241 {
2242 frame->prepare = prepare_nop;
2243 frame->check = slf_check_nop;
2244 }
2245 }
2246}
2247
2248static int
2249slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2250{
2251 frame->prepare = 0;
2252 coro_unwind_stacks (aTHX);
2253
2254 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2255
2256 return 1;
2257}
2258
2259static int
2260safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2261{
2262 if (coro->cctx)
2263 croak ("coro inside C callback, unable to cancel at this time, caught");
2264
2265 if (coro->flags & CF_NEW)
2266 {
2267 coro_set_status (aTHX_ coro, arg, items);
2268 coro_state_destroy (aTHX_ coro);
2269 }
2270 else
2271 {
2272 if (!coro->slf_frame.prepare)
2273 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2274
2275 slf_destroy (aTHX_ coro);
2276
2277 coro_set_status (aTHX_ coro, arg, items);
2278 coro->slf_frame.prepare = prepare_nop;
2279 coro->slf_frame.check = slf_check_safe_cancel;
2280
2281 api_ready (aTHX_ (SV *)coro->hv);
2282 }
2283
2284 return 1;
1914} 2285}
1915 2286
1916/*****************************************************************************/ 2287/*****************************************************************************/
1917/* async pool handler */ 2288/* async pool handler */
1918 2289
… …
1949slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2320slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1950{ 2321{
1951 HV *hv = (HV *)SvRV (coro_current); 2322 HV *hv = (HV *)SvRV (coro_current);
1952 struct coro *coro = SvSTATE_hv ((SV *)hv); 2323 struct coro *coro = SvSTATE_hv ((SV *)hv);
1953 2324
1954 if (expect_true (coro->saved_deffh)) 2325 if (ecb_expect_true (coro->saved_deffh))
1955 { 2326 {
1956 /* subsequent iteration */ 2327 /* subsequent iteration */
1957 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2328 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1958 coro->saved_deffh = 0; 2329 coro->saved_deffh = 0;
1959 2330
1960 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2331 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1961 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2332 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1962 { 2333 {
1963 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2334 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1964 coro->invoke_av = newAV (); 2335 return;
1965
1966 frame->prepare = prepare_nop;
1967 } 2336 }
1968 else 2337 else
1969 { 2338 {
1970 av_clear (GvAV (PL_defgv)); 2339 av_clear (GvAV (PL_defgv));
1971 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2340 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1996 2365
1997static void 2366static void
1998coro_rouse_callback (pTHX_ CV *cv) 2367coro_rouse_callback (pTHX_ CV *cv)
1999{ 2368{
2000 dXSARGS; 2369 dXSARGS;
2001 SV *data = (SV *)GENSUB_ARG; 2370 SV *data = (SV *)S_GENSUB_ARG;
2002 2371
2003 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2372 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2004 { 2373 {
2005 /* first call, set args */ 2374 /* first call, set args */
2006 SV *coro = SvRV (data); 2375 SV *coro = SvRV (data);
… …
2021 2390
2022static int 2391static int
2023slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2392slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2024{ 2393{
2025 SV *data = (SV *)frame->data; 2394 SV *data = (SV *)frame->data;
2026 2395
2027 if (CORO_THROW) 2396 if (CORO_THROW)
2028 return 0; 2397 return 0;
2029 2398
2030 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2399 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2031 return 1; 2400 return 1;
… …
2067 cb = sv_2mortal (coro->rouse_cb); 2436 cb = sv_2mortal (coro->rouse_cb);
2068 coro->rouse_cb = 0; 2437 coro->rouse_cb = 0;
2069 } 2438 }
2070 2439
2071 if (!SvROK (cb) 2440 if (!SvROK (cb)
2072 || SvTYPE (SvRV (cb)) != SVt_PVCV 2441 || SvTYPE (SvRV (cb)) != SVt_PVCV
2073 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2442 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2074 croak ("Coro::rouse_wait called with illegal callback argument,"); 2443 croak ("Coro::rouse_wait called with illegal callback argument,");
2075 2444
2076 { 2445 {
2077 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2446 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2078 SV *data = (SV *)GENSUB_ARG; 2447 SV *data = (SV *)S_GENSUB_ARG;
2079 2448
2080 frame->data = (void *)data; 2449 frame->data = (void *)data;
2081 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2450 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2082 frame->check = slf_check_rouse_wait; 2451 frame->check = slf_check_rouse_wait;
2083 } 2452 }
… …
2087coro_new_rouse_cb (pTHX) 2456coro_new_rouse_cb (pTHX)
2088{ 2457{
2089 HV *hv = (HV *)SvRV (coro_current); 2458 HV *hv = (HV *)SvRV (coro_current);
2090 struct coro *coro = SvSTATE_hv (hv); 2459 struct coro *coro = SvSTATE_hv (hv);
2091 SV *data = newRV_inc ((SV *)hv); 2460 SV *data = newRV_inc ((SV *)hv);
2092 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2461 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2093 2462
2094 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2463 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2095 SvREFCNT_dec (data); /* magicext increases the refcount */ 2464 SvREFCNT_dec (data); /* magicext increases the refcount */
2096 2465
2097 SvREFCNT_dec (coro->rouse_cb); 2466 SvREFCNT_dec (coro->rouse_cb);
… …
2194static void 2563static void
2195slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2564slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2196{ 2565{
2197 frame->prepare = prepare_cede_notself; 2566 frame->prepare = prepare_cede_notself;
2198 frame->check = slf_check_nop; 2567 frame->check = slf_check_nop;
2568}
2569
2570/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2571static void
2572slf_destroy (pTHX_ struct coro *coro)
2573{
2574 /* this callback is reserved for slf functions needing to do cleanup */
2575 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2576 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2577
2578 /*
2579 * The on_destroy above most likely is from an SLF call.
2580 * Since by definition the SLF call will not finish when we destroy
2581 * the coro, we will have to force-finish it here, otherwise
2582 * cleanup functions cannot call SLF functions.
2583 */
2584 coro->slf_frame.prepare = 0;
2199} 2585}
2200 2586
2201/* 2587/*
2202 * these not obviously related functions are all rolled into one 2588 * these not obviously related functions are all rolled into one
2203 * function to increase chances that they all will call transfer with the same 2589 * function to increase chances that they all will call transfer with the same
… …
2210 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2596 I32 checkmark; /* mark SP to see how many elements check has pushed */
2211 2597
2212 /* set up the slf frame, unless it has already been set-up */ 2598 /* set up the slf frame, unless it has already been set-up */
2213 /* the latter happens when a new coro has been started */ 2599 /* the latter happens when a new coro has been started */
2214 /* or when a new cctx was attached to an existing coroutine */ 2600 /* or when a new cctx was attached to an existing coroutine */
2215 if (expect_true (!slf_frame.prepare)) 2601 if (ecb_expect_true (!slf_frame.prepare))
2216 { 2602 {
2217 /* first iteration */ 2603 /* first iteration */
2218 dSP; 2604 dSP;
2219 SV **arg = PL_stack_base + TOPMARK + 1; 2605 SV **arg = PL_stack_base + TOPMARK + 1;
2220 int items = SP - arg; /* args without function object */ 2606 int items = SP - arg; /* args without function object */
… …
2261 while (slf_frame.check (aTHX_ &slf_frame)); 2647 while (slf_frame.check (aTHX_ &slf_frame));
2262 2648
2263 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2649 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2264 2650
2265 /* exception handling */ 2651 /* exception handling */
2266 if (expect_false (CORO_THROW)) 2652 if (ecb_expect_false (CORO_THROW))
2267 { 2653 {
2268 SV *exception = sv_2mortal (CORO_THROW); 2654 SV *exception = sv_2mortal (CORO_THROW);
2269 2655
2270 CORO_THROW = 0; 2656 CORO_THROW = 0;
2271 sv_setsv (ERRSV, exception); 2657 sv_setsv (ERRSV, exception);
2272 croak (0); 2658 croak (0);
2273 } 2659 }
2274 2660
2275 /* return value handling - mostly like entersub */ 2661 /* return value handling - mostly like entersub */
2276 /* make sure we put something on the stack in scalar context */ 2662 /* make sure we put something on the stack in scalar context */
2277 if (GIMME_V == G_SCALAR) 2663 if (GIMME_V == G_SCALAR
2664 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2278 { 2665 {
2279 dSP; 2666 dSP;
2280 SV **bot = PL_stack_base + checkmark; 2667 SV **bot = PL_stack_base + checkmark;
2281 2668
2282 if (sp == bot) /* too few, push undef */ 2669 if (sp == bot) /* too few, push undef */
2283 bot [1] = &PL_sv_undef; 2670 bot [1] = &PL_sv_undef;
2284 else if (sp != bot + 1) /* too many, take last one */ 2671 else /* too many, take last one */
2285 bot [1] = *sp; 2672 bot [1] = *sp;
2286 2673
2287 SP = bot + 1; 2674 SP = bot + 1;
2288 2675
2289 PUTBACK; 2676 PUTBACK;
… …
2322 if (PL_op->op_flags & OPf_STACKED) 2709 if (PL_op->op_flags & OPf_STACKED)
2323 { 2710 {
2324 if (items > slf_arga) 2711 if (items > slf_arga)
2325 { 2712 {
2326 slf_arga = items; 2713 slf_arga = items;
2327 free (slf_argv); 2714 Safefree (slf_argv);
2328 slf_argv = malloc (slf_arga * sizeof (SV *)); 2715 New (0, slf_argv, slf_arga, SV *);
2329 } 2716 }
2330 2717
2331 slf_argc = items; 2718 slf_argc = items;
2332 2719
2333 for (i = 0; i < items; ++i) 2720 for (i = 0; i < items; ++i)
… …
2396{ 2783{
2397 PerlIOBuf base; 2784 PerlIOBuf base;
2398 NV next, every; 2785 NV next, every;
2399} PerlIOCede; 2786} PerlIOCede;
2400 2787
2401static IV 2788static IV ecb_cold
2402PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2789PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2403{ 2790{
2404 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2791 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2405 2792
2406 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2793 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2407 self->next = nvtime () + self->every; 2794 self->next = nvtime () + self->every;
2408 2795
2409 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2796 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2410} 2797}
2411 2798
2412static SV * 2799static SV * ecb_cold
2413PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2800PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2414{ 2801{
2415 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2802 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2416 2803
2417 return newSVnv (self->every); 2804 return newSVnv (self->every);
… …
2468/* Coro::Semaphore & Coro::Signal */ 2855/* Coro::Semaphore & Coro::Signal */
2469 2856
2470static SV * 2857static SV *
2471coro_waitarray_new (pTHX_ int count) 2858coro_waitarray_new (pTHX_ int count)
2472{ 2859{
2473 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2860 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2474 AV *av = newAV (); 2861 AV *av = newAV ();
2475 SV **ary; 2862 SV **ary;
2476 2863
2477 /* unfortunately, building manually saves memory */ 2864 /* unfortunately, building manually saves memory */
2478 Newx (ary, 2, SV *); 2865 Newx (ary, 2, SV *);
… …
2529 SvREFCNT_dec (cb); 2916 SvREFCNT_dec (cb);
2530 } 2917 }
2531} 2918}
2532 2919
2533static void 2920static void
2534coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2921coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2535{ 2922{
2536 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2923 /* call $sem->adjust (0) to possibly wake up some other waiters */
2537 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2924 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2538} 2925}
2539 2926
2540static int 2927static int
2541slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2928slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2542{ 2929{
2543 AV *av = (AV *)frame->data; 2930 AV *av = (AV *)frame->data;
2544 SV *count_sv = AvARRAY (av)[0]; 2931 SV *count_sv = AvARRAY (av)[0];
2932 SV *coro_hv = SvRV (coro_current);
2545 2933
2546 /* if we are about to throw, don't actually acquire the lock, just throw */ 2934 /* if we are about to throw, don't actually acquire the lock, just throw */
2547 if (CORO_THROW) 2935 if (CORO_THROW)
2548 return 0; 2936 return 0;
2549 else if (SvIVX (count_sv) > 0) 2937 else if (SvIVX (count_sv) > 0)
2550 { 2938 {
2551 SvSTATE_current->on_destroy = 0; 2939 frame->destroy = 0;
2552 2940
2553 if (acquire) 2941 if (acquire)
2554 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2942 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2555 else 2943 else
2556 coro_semaphore_adjust (aTHX_ av, 0); 2944 coro_semaphore_adjust (aTHX_ av, 0);
… …
2561 { 2949 {
2562 int i; 2950 int i;
2563 /* if we were woken up but can't down, we look through the whole */ 2951 /* if we were woken up but can't down, we look through the whole */
2564 /* waiters list and only add us if we aren't in there already */ 2952 /* waiters list and only add us if we aren't in there already */
2565 /* this avoids some degenerate memory usage cases */ 2953 /* this avoids some degenerate memory usage cases */
2566 2954 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2567 for (i = 1; i <= AvFILLp (av); ++i)
2568 if (AvARRAY (av)[i] == SvRV (coro_current)) 2955 if (AvARRAY (av)[i] == coro_hv)
2569 return 1; 2956 return 1;
2570 2957
2571 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2958 av_push (av, SvREFCNT_inc (coro_hv));
2572 return 1; 2959 return 1;
2573 } 2960 }
2574} 2961}
2575 2962
2576static int 2963static int
… …
2599 { 2986 {
2600 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2987 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2601 2988
2602 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2989 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2603 frame->prepare = prepare_schedule; 2990 frame->prepare = prepare_schedule;
2604
2605 /* to avoid race conditions when a woken-up coro gets terminated */ 2991 /* to avoid race conditions when a woken-up coro gets terminated */
2606 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2992 /* we arrange for a temporary on_destroy that calls adjust (0) */
2607 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2993 frame->destroy = coro_semaphore_destroy;
2608 } 2994 }
2609} 2995}
2610 2996
2611static void 2997static void
2612slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2998slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2620{ 3006{
2621 if (items >= 2) 3007 if (items >= 2)
2622 { 3008 {
2623 /* callback form */ 3009 /* callback form */
2624 AV *av = (AV *)SvRV (arg [0]); 3010 AV *av = (AV *)SvRV (arg [0]);
2625 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3011 SV *cb_cv = s_get_cv_croak (arg [1]);
2626 3012
2627 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3013 av_push (av, SvREFCNT_inc_NN (cb_cv));
2628 3014
2629 if (SvIVX (AvARRAY (av)[0]) > 0) 3015 if (SvIVX (AvARRAY (av)[0]) > 0)
2630 coro_semaphore_adjust (aTHX_ av, 0); 3016 coro_semaphore_adjust (aTHX_ av, 0);
2631 3017
2632 frame->prepare = prepare_nop; 3018 frame->prepare = prepare_nop;
… …
2656 AvARRAY (av)[0] = AvARRAY (av)[1]; 3042 AvARRAY (av)[0] = AvARRAY (av)[1];
2657 AvARRAY (av)[1] = cb; 3043 AvARRAY (av)[1] = cb;
2658 3044
2659 cb = av_shift (av); 3045 cb = av_shift (av);
2660 3046
3047 if (SvTYPE (cb) == SVt_PVCV)
3048 {
3049 dSP;
3050 PUSHMARK (SP);
3051 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3052 PUTBACK;
3053 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3054 }
3055 else
3056 {
2661 api_ready (aTHX_ cb); 3057 api_ready (aTHX_ cb);
2662 sv_setiv (cb, 0); /* signal waiter */ 3058 sv_setiv (cb, 0); /* signal waiter */
3059 }
3060
2663 SvREFCNT_dec (cb); 3061 SvREFCNT_dec (cb);
2664 3062
2665 --count; 3063 --count;
2666 } 3064 }
2667} 3065}
… …
2676static void 3074static void
2677slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3075slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2678{ 3076{
2679 AV *av = (AV *)SvRV (arg [0]); 3077 AV *av = (AV *)SvRV (arg [0]);
2680 3078
3079 if (items >= 2)
3080 {
3081 SV *cb_cv = s_get_cv_croak (arg [1]);
3082 av_push (av, SvREFCNT_inc_NN (cb_cv));
3083
2681 if (SvIVX (AvARRAY (av)[0])) 3084 if (SvIVX (AvARRAY (av)[0]))
3085 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3086
3087 frame->prepare = prepare_nop;
3088 frame->check = slf_check_nop;
3089 }
3090 else if (SvIVX (AvARRAY (av)[0]))
2682 { 3091 {
2683 SvIVX (AvARRAY (av)[0]) = 0; 3092 SvIVX (AvARRAY (av)[0]) = 0;
2684 frame->prepare = prepare_nop; 3093 frame->prepare = prepare_nop;
2685 frame->check = slf_check_nop; 3094 frame->check = slf_check_nop;
2686 } 3095 }
2687 else 3096 else
2688 { 3097 {
2689 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3098 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2690 3099
2691 av_push (av, waiter); 3100 av_push (av, waiter);
2692 3101
2693 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3102 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2694 frame->prepare = prepare_schedule; 3103 frame->prepare = prepare_schedule;
… …
2712 3121
2713static void 3122static void
2714coro_aio_callback (pTHX_ CV *cv) 3123coro_aio_callback (pTHX_ CV *cv)
2715{ 3124{
2716 dXSARGS; 3125 dXSARGS;
2717 AV *state = (AV *)GENSUB_ARG; 3126 AV *state = (AV *)S_GENSUB_ARG;
2718 SV *coro = av_pop (state); 3127 SV *coro = av_pop (state);
2719 SV *data_sv = newSV (sizeof (struct io_state)); 3128 SV *data_sv = newSV (sizeof (struct io_state));
2720 3129
2721 av_extend (state, items - 1); 3130 av_extend (state, items - 1);
2722 3131
… …
2758 /* it quickly returns */ 3167 /* it quickly returns */
2759 if (CORO_THROW) 3168 if (CORO_THROW)
2760 return 0; 3169 return 0;
2761 3170
2762 /* one element that is an RV? repeat! */ 3171 /* one element that is an RV? repeat! */
2763 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3172 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2764 return 1; 3173 return 1;
2765 3174
2766 /* restore status */ 3175 /* restore status */
2767 { 3176 {
2768 SV *data_sv = av_pop (state); 3177 SV *data_sv = av_pop (state);
… …
2807 dSP; 3216 dSP;
2808 3217
2809 static SV *prio_cv; 3218 static SV *prio_cv;
2810 static SV *prio_sv; 3219 static SV *prio_sv;
2811 3220
2812 if (expect_false (!prio_cv)) 3221 if (ecb_expect_false (!prio_cv))
2813 { 3222 {
2814 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3223 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2815 prio_sv = newSViv (0); 3224 prio_sv = newSViv (0);
2816 } 3225 }
2817 3226
… …
2836 3245
2837 for (i = 0; i < items; ++i) 3246 for (i = 0; i < items; ++i)
2838 PUSHs (arg [i]); 3247 PUSHs (arg [i]);
2839 3248
2840 /* now push the callback closure */ 3249 /* now push the callback closure */
2841 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3250 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2842 3251
2843 /* now call the AIO function - we assume our request is uncancelable */ 3252 /* now call the AIO function - we assume our request is uncancelable */
2844 PUTBACK; 3253 PUTBACK;
2845 call_sv ((SV *)req, G_VOID | G_DISCARD); 3254 call_sv ((SV *)req, G_VOID | G_DISCARD);
2846 } 3255 }
2847 3256
2848 /* now that the requets is going, we loop toll we have a result */ 3257 /* now that the request is going, we loop till we have a result */
2849 frame->data = (void *)state; 3258 frame->data = (void *)state;
2850 frame->prepare = prepare_schedule; 3259 frame->prepare = prepare_schedule;
2851 frame->check = slf_check_aio_req; 3260 frame->check = slf_check_aio_req;
2852} 3261}
2853 3262
… …
2863 3272
2864/*****************************************************************************/ 3273/*****************************************************************************/
2865 3274
2866#if CORO_CLONE 3275#if CORO_CLONE
2867# include "clone.c" 3276# include "clone.c"
3277#endif
3278
3279/*****************************************************************************/
3280
3281static SV *
3282coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3283{
3284 SV *coro_sv;
3285 struct coro *coro;
3286 MAGIC *mg;
3287 HV *hv;
3288 SV *cb;
3289 int i;
3290
3291 if (argc > 0)
3292 {
3293 cb = s_get_cv_croak (argv [0]);
3294
3295 if (!is_coro)
3296 {
3297 if (CvISXSUB (cb))
3298 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3299
3300 if (!CvROOT (cb))
3301 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3302 }
3303 }
3304
3305 Newz (0, coro, 1, struct coro);
3306 coro->args = newAV ();
3307 coro->flags = CF_NEW;
3308
3309 if (coro_first) coro_first->prev = coro;
3310 coro->next = coro_first;
3311 coro_first = coro;
3312
3313 coro->hv = hv = newHV ();
3314 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3315 mg->mg_flags |= MGf_DUP;
3316 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3317
3318 if (argc > 0)
3319 {
3320 av_extend (coro->args, argc + is_coro - 1);
3321
3322 if (is_coro)
3323 {
3324 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3325 cb = (SV *)cv_coro_run;
3326 }
3327
3328 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3329
3330 for (i = 1; i < argc; i++)
3331 av_push (coro->args, newSVsv (argv [i]));
3332 }
3333
3334 return coro_sv;
3335}
3336
3337#ifndef __cplusplus
3338ecb_cold XS(boot_Coro__State);
3339#endif
3340
3341#if CORO_JIT
3342
3343static void ecb_noinline ecb_cold
3344pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3345{
3346 dSP;
3347 AV *av = newAV ();
3348
3349 av_store (av, 3, newSVuv (d));
3350 av_store (av, 2, newSVuv (c));
3351 av_store (av, 1, newSVuv (b));
3352 av_store (av, 0, newSVuv (a));
3353
3354 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3355
3356 PUTBACK;
3357}
3358
3359static void ecb_noinline ecb_cold
3360jit_init (pTHX)
3361{
3362 dSP;
3363 SV *load, *save;
3364 char *map_base;
3365 char *load_ptr, *save_ptr;
3366 STRLEN load_len, save_len, map_len;
3367 int count;
3368
3369 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3370
3371 PUSHMARK (SP);
3372 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3373 #include "state.h"
3374 count = call_pv ("Coro::State::_jit", G_ARRAY);
3375 SPAGAIN;
3376
3377 save = POPs; save_ptr = SvPVbyte (save, save_len);
3378 load = POPs; load_ptr = SvPVbyte (load, load_len);
3379
3380 map_len = load_len + save_len + 16;
3381
3382 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3383
3384 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3385
3386 load_perl_slots = (load_save_perl_slots_type)map_base;
3387 memcpy (map_base, load_ptr, load_len);
3388
3389 map_base += (load_len + 15) & ~15;
3390
3391 save_perl_slots = (load_save_perl_slots_type)map_base;
3392 memcpy (map_base, save_ptr, save_len);
3393
3394 /* we are good citizens and try to make the page read-only, so the evil evil */
3395 /* hackers might have it a bit more difficult */
3396 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3397
3398 PUTBACK;
3399 eval_pv ("undef &Coro::State::_jit", 1);
3400}
3401
2868#endif 3402#endif
2869 3403
2870MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3404MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2871 3405
2872PROTOTYPES: DISABLE 3406PROTOTYPES: DISABLE
… …
2876#ifdef USE_ITHREADS 3410#ifdef USE_ITHREADS
2877# if CORO_PTHREAD 3411# if CORO_PTHREAD
2878 coro_thx = PERL_GET_CONTEXT; 3412 coro_thx = PERL_GET_CONTEXT;
2879# endif 3413# endif
2880#endif 3414#endif
2881 BOOT_PAGESIZE; 3415 /* perl defines these to check for existance first, but why it doesn't */
3416 /* just create them one at init time is not clear to me, except for */
3417 /* programs trying to delete them, but... */
3418 /* anyway, we declare this as invalid and make sure they are initialised here */
3419 DEFSV;
3420 ERRSV;
2882 3421
2883 cctx_current = cctx_new_empty (); 3422 cctx_current = cctx_new_empty ();
2884 3423
2885 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3424 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2886 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3425 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
… …
2926 coroapi.prepare_nop = prepare_nop; 3465 coroapi.prepare_nop = prepare_nop;
2927 coroapi.prepare_schedule = prepare_schedule; 3466 coroapi.prepare_schedule = prepare_schedule;
2928 coroapi.prepare_cede = prepare_cede; 3467 coroapi.prepare_cede = prepare_cede;
2929 coroapi.prepare_cede_notself = prepare_cede_notself; 3468 coroapi.prepare_cede_notself = prepare_cede_notself;
2930 3469
2931 { 3470 time_init (aTHX);
2932 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2933 3471
2934 if (!svp) croak ("Time::HiRes is required");
2935 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2936
2937 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2938 }
2939
2940 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3472 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3473#if CORO_JIT
3474 PUTBACK;
3475 jit_init (aTHX);
3476 SPAGAIN;
3477#endif
2941} 3478}
2942 3479
2943SV * 3480SV *
2944new (char *klass, ...) 3481new (SV *klass, ...)
2945 ALIAS: 3482 ALIAS:
2946 Coro::new = 1 3483 Coro::new = 1
2947 CODE: 3484 CODE:
2948{ 3485 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2949 struct coro *coro; 3486 OUTPUT:
2950 MAGIC *mg;
2951 HV *hv;
2952 CV *cb;
2953 int i;
2954
2955 if (items > 1)
2956 {
2957 cb = coro_sv_2cv (aTHX_ ST (1));
2958
2959 if (!ix)
2960 {
2961 if (CvISXSUB (cb))
2962 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2963
2964 if (!CvROOT (cb))
2965 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2966 }
2967 }
2968
2969 Newz (0, coro, 1, struct coro);
2970 coro->args = newAV ();
2971 coro->flags = CF_NEW;
2972
2973 if (coro_first) coro_first->prev = coro;
2974 coro->next = coro_first;
2975 coro_first = coro;
2976
2977 coro->hv = hv = newHV ();
2978 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2979 mg->mg_flags |= MGf_DUP;
2980 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2981
2982 if (items > 1)
2983 {
2984 av_extend (coro->args, items - 1 + ix - 1);
2985
2986 if (ix)
2987 {
2988 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2989 cb = cv_coro_run;
2990 }
2991
2992 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2993
2994 for (i = 2; i < items; i++)
2995 av_push (coro->args, newSVsv (ST (i)));
2996 }
2997}
2998 OUTPUT:
2999 RETVAL 3487 RETVAL
3000 3488
3001void 3489void
3002transfer (...) 3490transfer (...)
3003 PROTOTYPE: $$ 3491 PROTOTYPE: $$
3004 CODE: 3492 CODE:
3005 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3493 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3006
3007bool
3008_destroy (SV *coro_sv)
3009 CODE:
3010 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3011 OUTPUT:
3012 RETVAL
3013
3014void
3015_exit (int code)
3016 PROTOTYPE: $
3017 CODE:
3018 _exit (code);
3019 3494
3020SV * 3495SV *
3021clone (Coro::State coro) 3496clone (Coro::State coro)
3022 CODE: 3497 CODE:
3023{ 3498{
… …
3078void 3553void
3079list () 3554list ()
3080 PROTOTYPE: 3555 PROTOTYPE:
3081 PPCODE: 3556 PPCODE:
3082{ 3557{
3083 struct coro *coro; 3558 struct coro *coro;
3084 for (coro = coro_first; coro; coro = coro->next) 3559 for (coro = coro_first; coro; coro = coro->next)
3085 if (coro->hv) 3560 if (coro->hv)
3086 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3561 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3087} 3562}
3088 3563
… …
3093 CODE: 3568 CODE:
3094{ 3569{
3095 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3570 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3096 { 3571 {
3097 struct coro *current = SvSTATE_current; 3572 struct coro *current = SvSTATE_current;
3573 struct CoroSLF slf_save;
3098 3574
3099 if (current != coro) 3575 if (current != coro)
3100 { 3576 {
3101 PUTBACK; 3577 PUTBACK;
3102 save_perl (aTHX_ current); 3578 save_perl (aTHX_ current);
3103 load_perl (aTHX_ coro); 3579 load_perl (aTHX_ coro);
3580 /* the coro is most likely in an active SLF call.
3581 * while not strictly required (the code we execute is
3582 * not allowed to call any SLF functions), it's cleaner
3583 * to reinitialise the slf_frame and restore it later.
3584 * This might one day allow us to actually do SLF calls
3585 * from code executed here.
3586 */
3587 slf_save = slf_frame;
3588 slf_frame.prepare = 0;
3104 SPAGAIN; 3589 SPAGAIN;
3105 } 3590 }
3106 3591
3107 PUSHSTACK; 3592 PUSHSTACK;
3108 3593
… …
3118 SPAGAIN; 3603 SPAGAIN;
3119 3604
3120 if (current != coro) 3605 if (current != coro)
3121 { 3606 {
3122 PUTBACK; 3607 PUTBACK;
3608 slf_frame = slf_save;
3123 save_perl (aTHX_ coro); 3609 save_perl (aTHX_ coro);
3124 load_perl (aTHX_ current); 3610 load_perl (aTHX_ current);
3125 SPAGAIN; 3611 SPAGAIN;
3126 } 3612 }
3127 } 3613 }
… …
3132 PROTOTYPE: $ 3618 PROTOTYPE: $
3133 ALIAS: 3619 ALIAS:
3134 is_ready = CF_READY 3620 is_ready = CF_READY
3135 is_running = CF_RUNNING 3621 is_running = CF_RUNNING
3136 is_new = CF_NEW 3622 is_new = CF_NEW
3137 is_destroyed = CF_DESTROYED 3623 is_destroyed = CF_ZOMBIE
3624 is_zombie = CF_ZOMBIE
3138 is_suspended = CF_SUSPENDED 3625 is_suspended = CF_SUSPENDED
3139 CODE: 3626 CODE:
3140 RETVAL = boolSV (coro->flags & ix); 3627 RETVAL = boolSV (coro->flags & ix);
3141 OUTPUT: 3628 OUTPUT:
3142 RETVAL 3629 RETVAL
3143 3630
3144void 3631void
3145throw (Coro::State self, SV *throw = &PL_sv_undef) 3632throw (SV *self, SV *exception = &PL_sv_undef)
3146 PROTOTYPE: $;$ 3633 PROTOTYPE: $;$
3147 CODE: 3634 CODE:
3148{ 3635{
3636 struct coro *coro = SvSTATE (self);
3149 struct coro *current = SvSTATE_current; 3637 struct coro *current = SvSTATE_current;
3150 SV **throwp = self == current ? &CORO_THROW : &self->except; 3638 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3151 SvREFCNT_dec (*throwp); 3639 SvREFCNT_dec (*exceptionp);
3152 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3640 SvGETMAGIC (exception);
3641 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3642
3643 api_ready (aTHX_ self);
3153} 3644}
3154 3645
3155void 3646void
3156api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3647api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3157 PROTOTYPE: $;$ 3648 PROTOTYPE: $;$
… …
3212 3703
3213void 3704void
3214cancel (Coro::State self) 3705cancel (Coro::State self)
3215 CODE: 3706 CODE:
3216 coro_state_destroy (aTHX_ self); 3707 coro_state_destroy (aTHX_ self);
3217 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ 3708
3709SV *
3710enable_times (int enabled = enable_times)
3711 CODE:
3712{
3713 RETVAL = boolSV (enable_times);
3714
3715 if (enabled != enable_times)
3716 {
3717 enable_times = enabled;
3718
3719 coro_times_update ();
3720 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3721 }
3722}
3723 OUTPUT:
3724 RETVAL
3725
3726void
3727times (Coro::State self)
3728 PPCODE:
3729{
3730 struct coro *current = SvSTATE (coro_current);
3731
3732 if (ecb_expect_false (current == self))
3733 {
3734 coro_times_update ();
3735 coro_times_add (SvSTATE (coro_current));
3736 }
3737
3738 EXTEND (SP, 2);
3739 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3740 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3741
3742 if (ecb_expect_false (current == self))
3743 coro_times_sub (SvSTATE (coro_current));
3744}
3745
3746void
3747swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3748 CODE:
3749{
3750 struct coro *current = SvSTATE_current;
3751
3752 if (current == coro)
3753 SWAP_SVS (current);
3754
3755 if (!coro->swap_sv)
3756 coro->swap_sv = newAV ();
3757
3758 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3759 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3760
3761 if (current == coro)
3762 SWAP_SVS (current);
3763}
3218 3764
3219 3765
3220MODULE = Coro::State PACKAGE = Coro 3766MODULE = Coro::State PACKAGE = Coro
3221 3767
3222BOOT: 3768BOOT:
3223{ 3769{
3224 int i;
3225
3226 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3770 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3227 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3771 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3228 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3772 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3229 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3230 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3773 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3231 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3774 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3232 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3775 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3233 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3776 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3234 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3777 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3235 3778
3236 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3779 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3237 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3780 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3238 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3781 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3239 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3782 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3240 3783
3241 coro_stash = gv_stashpv ("Coro", TRUE); 3784 coro_stash = gv_stashpv ("Coro", TRUE);
3242 3785
3243 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3786 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3244 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3787 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3245 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3788 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3246 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3789 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3247 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3790 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3248 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3791 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3249 3792
3250 { 3793 {
3251 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3794 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3252 3795
3253 coroapi.schedule = api_schedule; 3796 coroapi.schedule = api_schedule;
… …
3263 sv_setiv (sv, (IV)&coroapi); 3806 sv_setiv (sv, (IV)&coroapi);
3264 SvREADONLY_on (sv); 3807 SvREADONLY_on (sv);
3265 } 3808 }
3266} 3809}
3267 3810
3811SV *
3812async (...)
3813 PROTOTYPE: &@
3814 CODE:
3815 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3816 api_ready (aTHX_ RETVAL);
3817 OUTPUT:
3818 RETVAL
3819
3820void
3821_destroy (Coro::State coro)
3822 CODE:
3823 /* used by the manager thread */
3824 coro_state_destroy (aTHX_ coro);
3825
3826void
3827on_destroy (Coro::State coro, SV *cb)
3828 CODE:
3829 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3830
3831void
3832join (...)
3833 CODE:
3834 CORO_EXECUTE_SLF_XS (slf_init_join);
3835
3268void 3836void
3269terminate (...) 3837terminate (...)
3270 CODE: 3838 CODE:
3271 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3839 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3840
3841void
3842cancel (...)
3843 CODE:
3844 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3845
3846int
3847safe_cancel (Coro::State self, ...)
3848 C_ARGS: aTHX_ self, &ST (1), items - 1
3272 3849
3273void 3850void
3274schedule (...) 3851schedule (...)
3275 CODE: 3852 CODE:
3276 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3853 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3305void 3882void
3306_set_readyhook (SV *hook) 3883_set_readyhook (SV *hook)
3307 PROTOTYPE: $ 3884 PROTOTYPE: $
3308 CODE: 3885 CODE:
3309 SvREFCNT_dec (coro_readyhook); 3886 SvREFCNT_dec (coro_readyhook);
3887 SvGETMAGIC (hook);
3888 if (SvOK (hook))
3889 {
3310 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3890 coro_readyhook = newSVsv (hook);
3891 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3892 }
3893 else
3894 {
3895 coro_readyhook = 0;
3896 CORO_READYHOOK = 0;
3897 }
3311 3898
3312int 3899int
3313prio (Coro::State coro, int newprio = 0) 3900prio (Coro::State coro, int newprio = 0)
3314 PROTOTYPE: $;$ 3901 PROTOTYPE: $;$
3315 ALIAS: 3902 ALIAS:
… …
3321 if (items > 1) 3908 if (items > 1)
3322 { 3909 {
3323 if (ix) 3910 if (ix)
3324 newprio = coro->prio - newprio; 3911 newprio = coro->prio - newprio;
3325 3912
3326 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3913 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3327 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3914 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3328 3915
3329 coro->prio = newprio; 3916 coro->prio = newprio;
3330 } 3917 }
3331} 3918}
3332 OUTPUT: 3919 OUTPUT:
… …
3379 for (i = 1; i < items; ++i) 3966 for (i = 1; i < items; ++i)
3380 av_push (av, SvREFCNT_inc_NN (ST (i))); 3967 av_push (av, SvREFCNT_inc_NN (ST (i)));
3381 3968
3382 if ((SV *)hv == &PL_sv_undef) 3969 if ((SV *)hv == &PL_sv_undef)
3383 { 3970 {
3384 PUSHMARK (SP); 3971 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3385 EXTEND (SP, 2);
3386 PUSHs (sv_Coro);
3387 PUSHs ((SV *)cv_pool_handler);
3388 PUTBACK;
3389 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3390 SPAGAIN;
3391
3392 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3972 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3973 SvREFCNT_dec (sv);
3393 } 3974 }
3394 3975
3395 { 3976 {
3396 struct coro *coro = SvSTATE_hv (hv); 3977 struct coro *coro = SvSTATE_hv (hv);
3397 3978
… …
3429 on_leave = 1 4010 on_leave = 1
3430 PROTOTYPE: & 4011 PROTOTYPE: &
3431 CODE: 4012 CODE:
3432{ 4013{
3433 struct coro *coro = SvSTATE_current; 4014 struct coro *coro = SvSTATE_current;
3434 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4015 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3435 4016
3436 block = (SV *)coro_sv_2cv (aTHX_ block); 4017 block = s_get_cv_croak (block);
3437 4018
3438 if (!*avp) 4019 if (!*avp)
3439 *avp = newAV (); 4020 *avp = newAV ();
3440 4021
3441 av_push (*avp, SvREFCNT_inc (block)); 4022 av_push (*avp, SvREFCNT_inc (block));
… …
3458MODULE = Coro::State PACKAGE = Coro::Semaphore 4039MODULE = Coro::State PACKAGE = Coro::Semaphore
3459 4040
3460SV * 4041SV *
3461new (SV *klass, SV *count = 0) 4042new (SV *klass, SV *count = 0)
3462 CODE: 4043 CODE:
4044{
4045 int semcnt = 1;
4046
4047 if (count)
4048 {
4049 SvGETMAGIC (count);
4050
4051 if (SvOK (count))
4052 semcnt = SvIV (count);
4053 }
4054
3463 RETVAL = sv_bless ( 4055 RETVAL = sv_bless (
3464 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4056 coro_waitarray_new (aTHX_ semcnt),
3465 GvSTASH (CvGV (cv)) 4057 GvSTASH (CvGV (cv))
3466 ); 4058 );
4059}
3467 OUTPUT: 4060 OUTPUT:
3468 RETVAL 4061 RETVAL
3469 4062
3470# helper for Coro::Channel and others 4063# helper for Coro::Channel and others
3471SV * 4064SV *
… …
3517 XSRETURN_NO; 4110 XSRETURN_NO;
3518} 4111}
3519 4112
3520void 4113void
3521waiters (SV *self) 4114waiters (SV *self)
3522 PPCODE: 4115 PPCODE:
3523{ 4116{
3524 AV *av = (AV *)SvRV (self); 4117 AV *av = (AV *)SvRV (self);
3525 int wcount = AvFILLp (av) + 1 - 1; 4118 int wcount = AvFILLp (av) + 1 - 1;
3526 4119
3527 if (GIMME_V == G_SCALAR) 4120 if (GIMME_V == G_SCALAR)
… …
3536} 4129}
3537 4130
3538MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4131MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3539 4132
3540void 4133void
3541_may_delete (SV *sem, int count, int extra_refs) 4134_may_delete (SV *sem, int count, unsigned int extra_refs)
3542 PPCODE: 4135 PPCODE:
3543{ 4136{
3544 AV *av = (AV *)SvRV (sem); 4137 AV *av = (AV *)SvRV (sem);
3545 4138
3546 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4139 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3547 && AvFILLp (av) == 0 /* no waiters, just count */ 4140 && AvFILLp (av) == 0 /* no waiters, just count */
3548 && SvIV (AvARRAY (av)[0]) == count) 4141 && SvIV (AvARRAY (av)[0]) == count)
3549 XSRETURN_YES; 4142 XSRETURN_YES;
… …
3570 4163
3571void 4164void
3572broadcast (SV *self) 4165broadcast (SV *self)
3573 CODE: 4166 CODE:
3574{ 4167{
3575 AV *av = (AV *)SvRV (self); 4168 AV *av = (AV *)SvRV (self);
3576 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4169 coro_signal_wake (aTHX_ av, AvFILLp (av));
3577} 4170}
3578 4171
3579void 4172void
3580send (SV *self) 4173send (SV *self)
… …
3588 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4181 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3589} 4182}
3590 4183
3591IV 4184IV
3592awaited (SV *self) 4185awaited (SV *self)
3593 CODE: 4186 CODE:
3594 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4187 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3595 OUTPUT: 4188 OUTPUT:
3596 RETVAL 4189 RETVAL
3597 4190
3598 4191
… …
3603 4196
3604void 4197void
3605_schedule (...) 4198_schedule (...)
3606 CODE: 4199 CODE:
3607{ 4200{
3608 static int incede; 4201 static int incede;
3609 4202
3610 api_cede_notself (aTHX); 4203 api_cede_notself (aTHX);
3611 4204
3612 ++incede; 4205 ++incede;
3613 while (coro_nready >= incede && api_cede (aTHX)) 4206 while (coro_nready >= incede && api_cede (aTHX))
… …
3629 4222
3630void 4223void
3631_register (char *target, char *proto, SV *req) 4224_register (char *target, char *proto, SV *req)
3632 CODE: 4225 CODE:
3633{ 4226{
3634 CV *req_cv = coro_sv_2cv (aTHX_ req); 4227 SV *req_cv = s_get_cv_croak (req);
3635 /* newXSproto doesn't return the CV on 5.8 */ 4228 /* newXSproto doesn't return the CV on 5.8 */
3636 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4229 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3637 sv_setpv ((SV *)slf_cv, proto); 4230 sv_setpv ((SV *)slf_cv, proto);
3638 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4231 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3639} 4232}
3640 4233
4234MODULE = Coro::State PACKAGE = Coro::Select
4235
4236void
4237patch_pp_sselect ()
4238 CODE:
4239 if (!coro_old_pp_sselect)
4240 {
4241 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4242 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4243 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4244 }
4245
4246void
4247unpatch_pp_sselect ()
4248 CODE:
4249 if (coro_old_pp_sselect)
4250 {
4251 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4252 coro_old_pp_sselect = 0;
4253 }
4254
4255MODULE = Coro::State PACKAGE = Coro::Util
4256
4257void
4258_exit (int code)
4259 CODE:
4260 _exit (code);
4261
4262NV
4263time ()
4264 CODE:
4265 RETVAL = nvtime (aTHX);
4266 OUTPUT:
4267 RETVAL
4268
4269NV
4270gettimeofday ()
4271 PPCODE:
4272{
4273 UV tv [2];
4274 u2time (aTHX_ tv);
4275 EXTEND (SP, 2);
4276 PUSHs (sv_2mortal (newSVuv (tv [0])));
4277 PUSHs (sv_2mortal (newSVuv (tv [1])));
4278}
4279

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