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Comparing Coro/Coro/State.xs (file contents):
Revision 1.320 by root, Fri Nov 21 07:29:04 2008 UTC vs.
Revision 1.434 by root, Sat Nov 2 19:48:50 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
107/* 5.8.7 */
108#ifndef SvRV_set
109# define SvRV_set(s,v) SvRV(s) = (v)
110#endif
111
112#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
113# undef CORO_STACKGUARD
114#endif
115
116#ifndef CORO_STACKGUARD
117# define CORO_STACKGUARD 0
118#endif 62#endif
119 63
120/* prefer perl internal functions over our own? */ 64/* prefer perl internal functions over our own? */
121#ifndef CORO_PREFER_PERL_FUNCTIONS 65#ifndef CORO_PREFER_PERL_FUNCTIONS
122# define CORO_PREFER_PERL_FUNCTIONS 0 66# define CORO_PREFER_PERL_FUNCTIONS 0
… …
130#else 74#else
131# define dSTACKLEVEL volatile void *stacklevel 75# define dSTACKLEVEL volatile void *stacklevel
132# define STACKLEVEL ((void *)&stacklevel) 76# define STACKLEVEL ((void *)&stacklevel)
133#endif 77#endif
134 78
135#define IN_DESTRUCT (PL_main_cv == Nullcv) 79#define IN_DESTRUCT PL_dirty
136
137#if __GNUC__ >= 3
138# define attribute(x) __attribute__(x)
139# define expect(expr,value) __builtin_expect ((expr),(value))
140# define INLINE static inline
141#else
142# define attribute(x)
143# define expect(expr,value) (expr)
144# define INLINE static
145#endif
146
147#define expect_false(expr) expect ((expr) != 0, 0)
148#define expect_true(expr) expect ((expr) != 0, 1)
149
150#define NOINLINE attribute ((noinline))
151 80
152#include "CoroAPI.h" 81#include "CoroAPI.h"
153#define GCoroAPI (&coroapi) /* very sneaky */ 82#define GCoroAPI (&coroapi) /* very sneaky */
154 83
155#ifdef USE_ITHREADS 84#ifdef USE_ITHREADS
156# if CORO_PTHREAD 85# if CORO_PTHREAD
157static void *coro_thx; 86static void *coro_thx;
158# endif 87# endif
159#endif 88#endif
160 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
161static 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]);
162 102
163/* we hijack an hopefully unused CV flag for our purposes */ 103/* we hijack an hopefully unused CV flag for our purposes */
164#define CVf_SLF 0x4000 104#define CVf_SLF 0x4000
165static OP *pp_slf (pTHX); 105static OP *pp_slf (pTHX);
106static void slf_destroy (pTHX_ struct coro *coro);
166 107
167static U32 cctx_gen; 108static U32 cctx_gen;
168static size_t cctx_stacksize = CORO_STACKSIZE; 109static size_t cctx_stacksize = CORO_STACKSIZE;
169static struct CoroAPI coroapi; 110static struct CoroAPI coroapi;
170static AV *main_mainstack; /* used to differentiate between $main and others */ 111static AV *main_mainstack; /* used to differentiate between $main and others */
… …
172static HV *coro_state_stash, *coro_stash; 113static HV *coro_state_stash, *coro_stash;
173static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 114static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
174 115
175static AV *av_destroy; /* destruction queue */ 116static AV *av_destroy; /* destruction queue */
176static SV *sv_manager; /* the manager coro */ 117static SV *sv_manager; /* the manager coro */
118static SV *sv_idle; /* $Coro::idle */
177 119
178static GV *irsgv; /* $/ */ 120static GV *irsgv; /* $/ */
179static GV *stdoutgv; /* *STDOUT */ 121static GV *stdoutgv; /* *STDOUT */
180static SV *rv_diehook; 122static SV *rv_diehook;
181static SV *rv_warnhook; 123static SV *rv_warnhook;
… …
186static SV *sv_pool_size; 128static SV *sv_pool_size;
187static SV *sv_async_pool_idle; /* description string */ 129static SV *sv_async_pool_idle; /* description string */
188static AV *av_async_pool; /* idle pool */ 130static AV *av_async_pool; /* idle pool */
189static SV *sv_Coro; /* class string */ 131static SV *sv_Coro; /* class string */
190static CV *cv_pool_handler; 132static CV *cv_pool_handler;
191static CV *cv_coro_state_new;
192 133
193/* Coro::AnyEvent */ 134/* Coro::AnyEvent */
194static SV *sv_activity; 135static SV *sv_activity;
195 136
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
196static struct coro_cctx *cctx_first; 143static struct coro_cctx *cctx_first;
197static int cctx_count, cctx_idle; 144static int cctx_count, cctx_idle;
198 145
199enum { 146enum
147{
200 CC_MAPPED = 0x01, 148 CC_MAPPED = 0x01,
201 CC_NOREUSE = 0x02, /* throw this away after tracing */ 149 CC_NOREUSE = 0x02, /* throw this away after tracing */
202 CC_TRACE = 0x04, 150 CC_TRACE = 0x04,
203 CC_TRACE_SUB = 0x08, /* trace sub calls */ 151 CC_TRACE_SUB = 0x08, /* trace sub calls */
204 CC_TRACE_LINE = 0x10, /* trace each statement */ 152 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
209typedef struct coro_cctx 157typedef struct coro_cctx
210{ 158{
211 struct coro_cctx *next; 159 struct coro_cctx *next;
212 160
213 /* the stack */ 161 /* the stack */
214 void *sptr; 162 struct coro_stack stack;
215 size_t ssize;
216 163
217 /* cpu state */ 164 /* cpu state */
218 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
219 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
220 JMPENV *top_env; 169 JMPENV *top_env;
221 coro_context cctx; 170 coro_context cctx;
222 171
223 U32 gen; 172 U32 gen;
224#if CORO_USE_VALGRIND 173#if CORO_USE_VALGRIND
225 int valgrind_id; 174 int valgrind_id;
226#endif 175#endif
227 unsigned char flags; 176 unsigned char flags;
228} coro_cctx; 177} coro_cctx;
229 178
179static coro_cctx *cctx_current; /* the currently running cctx */
180
181/*****************************************************************************/
182
183static MGVTBL coro_state_vtbl;
184
230enum { 185enum
186{
231 CF_RUNNING = 0x0001, /* coroutine is running */ 187 CF_RUNNING = 0x0001, /* coroutine is running */
232 CF_READY = 0x0002, /* coroutine is ready */ 188 CF_READY = 0x0002, /* coroutine is ready */
233 CF_NEW = 0x0004, /* has never been switched to */ 189 CF_NEW = 0x0004, /* has never been switched to */
234 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 190 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
191 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
192 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
235}; 193};
236 194
237/* 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 */
238typedef struct 196typedef struct
239{ 197{
240 SV *defsv;
241 AV *defav;
242 SV *errsv;
243 SV *irsgv;
244#define VAR(name,type) type name; 198 #define VARx(name,expr,type) type name;
245# include "state.h" 199 #include "state.h"
246#undef VAR
247} perl_slots; 200} perl_slots;
248 201
202/* how many context stack entries do we need for perl_slots */
249#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))
250 204
251/* this is a structure representing a perl-level coroutine */ 205/* this is a structure representing a perl-level coroutine */
252struct coro { 206struct coro
207{
253 /* the C coroutine allocated to this perl coroutine, if any */ 208 /* the C coroutine allocated to this perl coroutine, if any */
254 coro_cctx *cctx; 209 coro_cctx *cctx;
210
211 /* ready queue */
212 struct coro *next_ready;
255 213
256 /* state data */ 214 /* state data */
257 struct CoroSLF slf_frame; /* saved slf frame */ 215 struct CoroSLF slf_frame; /* saved slf frame */
258 AV *mainstack; 216 AV *mainstack;
259 perl_slots *slot; /* basically the saved sp */ 217 perl_slots *slot; /* basically the saved sp */
260 218
261 CV *startcv; /* the CV to execute */ 219 CV *startcv; /* the CV to execute */
262 AV *args; /* data associated with this coroutine (initial args) */ 220 AV *args; /* data associated with this coroutine (initial args) */
263 int refcnt; /* coroutines are refcounted, yes */
264 int flags; /* CF_ flags */ 221 int flags; /* CF_ flags */
265 HV *hv; /* the perl hash associated with this coro, if any */ 222 HV *hv; /* the perl hash associated with this coro, if any */
266 void (*on_destroy)(pTHX_ struct coro *coro);
267 223
268 /* statistics */ 224 /* statistics */
269 int usecount; /* number of transfers to this coro */ 225 int usecount; /* number of transfers to this coro */
270 226
271 /* coro process data */ 227 /* coro process data */
272 int prio; 228 int prio;
273 SV *except; /* exception to be thrown */ 229 SV *except; /* exception to be thrown */
274 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 */
275 233
276 /* async_pool */ 234 /* async_pool */
277 SV *saved_deffh; 235 SV *saved_deffh;
278 SV *invoke_cb; 236 SV *invoke_cb;
279 AV *invoke_av; 237 AV *invoke_av;
280 238
239 /* on_enter/on_leave */
240 AV *on_enter;
241 AV *on_leave;
242
243 /* swap_sv */
244 AV *swap_sv;
245
246 /* times */
247 coro_ts t_cpu, t_real;
248
281 /* linked list */ 249 /* linked list */
282 struct coro *next, *prev; 250 struct coro *next, *prev;
283}; 251};
284 252
285typedef struct coro *Coro__State; 253typedef struct coro *Coro__State;
286typedef struct coro *Coro__State_or_hashref; 254typedef struct coro *Coro__State_or_hashref;
287 255
288/* the following variables are effectively part of the perl context */ 256/* the following variables are effectively part of the perl context */
289/* and get copied between struct coro and these variables */ 257/* and get copied between struct coro and these variables */
290/* the mainr easonw e don't support windows process emulation */ 258/* the main reason we don't support windows process emulation */
291static struct CoroSLF slf_frame; /* the current slf frame */ 259static struct CoroSLF slf_frame; /* the current slf frame */
292 260
293/** Coro ********************************************************************/ 261/** Coro ********************************************************************/
294 262
295#define PRIO_MAX 3 263#define CORO_PRIO_MAX 3
296#define PRIO_HIGH 1 264#define CORO_PRIO_HIGH 1
297#define PRIO_NORMAL 0 265#define CORO_PRIO_NORMAL 0
298#define PRIO_LOW -1 266#define CORO_PRIO_LOW -1
299#define PRIO_IDLE -3 267#define CORO_PRIO_IDLE -3
300#define PRIO_MIN -4 268#define CORO_PRIO_MIN -4
301 269
302/* for Coro.pm */ 270/* for Coro.pm */
303static SV *coro_current; 271static SV *coro_current;
304static SV *coro_readyhook; 272static SV *coro_readyhook;
305static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 273static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
306static CV *cv_coro_run, *cv_coro_terminate; 274static CV *cv_coro_run;
307static struct coro *coro_first; 275static struct coro *coro_first;
308#define coro_nready coroapi.nready 276#define coro_nready coroapi.nready
309 277
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
310/** lowlevel stuff **********************************************************/ 373/** lowlevel stuff **********************************************************/
311 374
312static SV * 375static SV * ecb_noinline
313coro_get_sv (pTHX_ const char *name, int create) 376coro_get_sv (pTHX_ const char *name, int create)
314{ 377{
315#if PERL_VERSION_ATLEAST (5,10,0) 378#if PERL_VERSION_ATLEAST (5,10,0)
316 /* 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 */
317 get_sv (name, create); 380 get_sv (name, create);
318#endif 381#endif
319 return get_sv (name, create); 382 return get_sv (name, create);
320} 383}
321 384
322static AV * 385static AV * ecb_noinline
323coro_get_av (pTHX_ const char *name, int create) 386coro_get_av (pTHX_ const char *name, int create)
324{ 387{
325#if PERL_VERSION_ATLEAST (5,10,0) 388#if PERL_VERSION_ATLEAST (5,10,0)
326 /* 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 */
327 get_av (name, create); 390 get_av (name, create);
328#endif 391#endif
329 return get_av (name, create); 392 return get_av (name, create);
330} 393}
331 394
332static HV * 395static HV * ecb_noinline
333coro_get_hv (pTHX_ const char *name, int create) 396coro_get_hv (pTHX_ const char *name, int create)
334{ 397{
335#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
336 /* 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 */
337 get_hv (name, create); 400 get_hv (name, create);
338#endif 401#endif
339 return get_hv (name, create); 402 return get_hv (name, create);
340} 403}
341 404
342/* may croak */ 405ecb_inline void
343INLINE CV * 406coro_times_update (void)
344coro_sv_2cv (pTHX_ SV *sv)
345{ 407{
346 HV *st; 408#ifdef coro_clock_gettime
347 GV *gvp; 409 struct timespec ts;
348 return sv_2cv (sv, &st, &gvp, 0);
349}
350 410
351static AV * 411 ts.tv_sec = ts.tv_nsec = 0;
412 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
413 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
414
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];
450}
451
452/*****************************************************************************/
453/* magic glue */
454
455#define CORO_MAGIC_type_cv 26
456#define CORO_MAGIC_type_state PERL_MAGIC_ext
457
458#define CORO_MAGIC_NN(sv, type) \
459 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
460 ? SvMAGIC (sv) \
461 : mg_find (sv, type))
462
463#define CORO_MAGIC(sv, type) \
464 (ecb_expect_true (SvMAGIC (sv)) \
465 ? CORO_MAGIC_NN (sv, type) \
466 : 0)
467
468#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
469#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
470
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 *
487SvSTATE_ (pTHX_ SV *coro)
488{
489 MAGIC *mg;
490
491 if (SvROK (coro))
492 coro = SvRV (coro);
493
494 mg = SvSTATEhv_p (aTHX_ coro);
495 if (!mg)
496 croak ("Coro::State object required");
497
498 return (struct coro *)mg->mg_ptr;
499}
500
501#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
502
503/* faster than SvSTATE, but expects a coroutine hv */
504#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
505#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
506
507/*****************************************************************************/
508/* padlist management and caching */
509
510ecb_inline PADLIST *
352coro_clone_padlist (pTHX_ CV *cv) 511coro_derive_padlist (pTHX_ CV *cv)
353{ 512{
354 AV *padlist = CvPADLIST (cv); 513 PADLIST *padlist = CvPADLIST (cv);
355 AV *newpadlist, *newpad; 514 PADLIST *newpadlist;
515 PAD *newpad;
516 PADOFFSET off = PadlistMAX (padlist) + 1;
356 517
357 newpadlist = newAV (); 518#if NEWPADAPI
519
520 while (!PadlistARRAY (padlist)[off - 1])
521 --off;
522
523 Perl_pad_push (aTHX_ padlist, off);
524 newpad = PadlistARRAY (padlist)[off];
525 PadlistARRAY (padlist)[off] = 0;
526
527#else
528
529#if PERL_VERSION_ATLEAST (5,10,0)
530 Perl_pad_push (aTHX_ padlist, off);
531#else
532 Perl_pad_push (aTHX_ padlist, off, 1);
533#endif
534
535 newpad = PadlistARRAY (padlist)[off];
536 PadlistMAX (padlist) = off - 1;
537
538#endif
539
540 newPADLIST (newpadlist);
541#if !PERL_VERSION_ATLEAST(5,15,3)
542 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
358 AvREAL_off (newpadlist); 543 AvREAL_off (newpadlist);
359#if PERL_VERSION_ATLEAST (5,10,0) 544#endif
360 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 545
546 /* Already extended to 2 elements by newPADLIST. */
547 PadlistMAX (newpadlist) = 1;
548 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
549 PadlistARRAY (newpadlist)[1] = newpad;
550
551 return newpadlist;
552}
553
554ecb_inline void
555free_padlist (pTHX_ PADLIST *padlist)
556{
557 /* may be during global destruction */
558 if (!IN_DESTRUCT)
559 {
560 I32 i = PadlistMAX (padlist);
561
562 while (i > 0) /* special-case index 0 */
563 {
564 /* we try to be extra-careful here */
565 PAD *pad = PadlistARRAY (padlist)[i--];
566 I32 j = PadMAX (pad);
567
568 while (j >= 0)
569 SvREFCNT_dec (PadARRAY (pad)[j--]);
570
571 PadMAX (pad) = -1;
572 SvREFCNT_dec (pad);
573 }
574
575 SvREFCNT_dec (PadlistNAMES (padlist));
576
577#if NEWPADAPI
578 Safefree (PadlistARRAY (padlist));
579 Safefree (padlist);
361#else 580#else
362 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
363#endif
364 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
365 --AvFILLp (padlist);
366
367 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
368 av_store (newpadlist, 1, (SV *)newpad);
369
370 return newpadlist;
371}
372
373static void
374free_padlist (pTHX_ AV *padlist)
375{
376 /* may be during global destruction */
377 if (SvREFCNT (padlist))
378 {
379 I32 i = AvFILLp (padlist); 581 AvFILLp (padlist) = -1;
380 while (i >= 0) 582 AvREAL_off (padlist);
381 {
382 SV **svp = av_fetch (padlist, i--, FALSE);
383 if (svp)
384 {
385 SV *sv;
386 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
387 SvREFCNT_dec (sv);
388
389 SvREFCNT_dec (*svp);
390 }
391 }
392
393 SvREFCNT_dec ((SV*)padlist); 583 SvREFCNT_dec ((SV*)padlist);
584#endif
394 } 585 }
395} 586}
396 587
397static int 588static int
398coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 589coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
399{ 590{
400 AV *padlist; 591 PADLIST *padlist;
401 AV *av = (AV *)mg->mg_obj; 592 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
593 size_t len = *(size_t *)mg->mg_ptr;
402 594
403 /* casting is fun. */ 595 /* perl manages to free our internal AV and _then_ call us */
404 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 596 if (IN_DESTRUCT)
597 return 0;
598
599 while (len--)
405 free_padlist (aTHX_ padlist); 600 free_padlist (aTHX_ padlists[len]);
406
407 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
408 601
409 return 0; 602 return 0;
410} 603}
411
412#define CORO_MAGIC_type_cv 26
413#define CORO_MAGIC_type_state PERL_MAGIC_ext
414 604
415static MGVTBL coro_cv_vtbl = { 605static MGVTBL coro_cv_vtbl = {
416 0, 0, 0, 0, 606 0, 0, 0, 0,
417 coro_cv_free 607 coro_cv_free
418}; 608};
419 609
420#define CORO_MAGIC_NN(sv, type) \
421 (expect_true (SvMAGIC (sv)->mg_type == type) \
422 ? SvMAGIC (sv) \
423 : mg_find (sv, type))
424
425#define CORO_MAGIC(sv, type) \
426 (expect_true (SvMAGIC (sv)) \
427 ? CORO_MAGIC_NN (sv, type) \
428 : 0)
429
430#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
431#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
432
433INLINE struct coro *
434SvSTATE_ (pTHX_ SV *coro)
435{
436 HV *stash;
437 MAGIC *mg;
438
439 if (SvROK (coro))
440 coro = SvRV (coro);
441
442 if (expect_false (SvTYPE (coro) != SVt_PVHV))
443 croak ("Coro::State object required");
444
445 stash = SvSTASH (coro);
446 if (expect_false (stash != coro_stash && stash != coro_state_stash))
447 {
448 /* very slow, but rare, check */
449 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
450 croak ("Coro::State object required");
451 }
452
453 mg = CORO_MAGIC_state (coro);
454 return (struct coro *)mg->mg_ptr;
455}
456
457#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
458
459/* faster than SvSTATE, but expects a coroutine hv */
460#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
461#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
462
463/* the next two functions merely cache the padlists */ 610/* the next two functions merely cache the padlists */
464static void 611ecb_inline void
465get_padlist (pTHX_ CV *cv) 612get_padlist (pTHX_ CV *cv)
466{ 613{
467 MAGIC *mg = CORO_MAGIC_cv (cv); 614 MAGIC *mg = CORO_MAGIC_cv (cv);
468 AV *av; 615 size_t *lenp;
469 616
470 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 617 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
471 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 618 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
472 else 619 else
473 { 620 {
474#if CORO_PREFER_PERL_FUNCTIONS 621#if CORO_PREFER_PERL_FUNCTIONS
475 /* this is probably cleaner? but also slower! */ 622 /* this is probably cleaner? but also slower! */
476 /* in practise, it seems to be less stable */ 623 /* in practise, it seems to be less stable */
477 CV *cp = Perl_cv_clone (aTHX_ cv); 624 CV *cp = Perl_cv_clone (aTHX_ cv);
478 CvPADLIST (cv) = CvPADLIST (cp); 625 CvPADLIST (cv) = CvPADLIST (cp);
479 CvPADLIST (cp) = 0; 626 CvPADLIST (cp) = 0;
480 SvREFCNT_dec (cp); 627 SvREFCNT_dec (cp);
481#else 628#else
482 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 629 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
483#endif 630#endif
484 } 631 }
485} 632}
486 633
487static void 634ecb_inline void
488put_padlist (pTHX_ CV *cv) 635put_padlist (pTHX_ CV *cv)
489{ 636{
490 MAGIC *mg = CORO_MAGIC_cv (cv); 637 MAGIC *mg = CORO_MAGIC_cv (cv);
491 AV *av;
492 638
493 if (expect_false (!mg)) 639 if (ecb_expect_false (!mg))
640 {
494 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 641 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
642 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
643 mg->mg_len = 1; /* so mg_free frees mg_ptr */
644 }
645 else
646 Renew (mg->mg_ptr,
647 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
648 char);
495 649
496 av = (AV *)mg->mg_obj; 650 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
497
498 if (expect_false (AvFILLp (av) >= AvMAX (av)))
499 av_extend (av, AvMAX (av) + 1);
500
501 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
502} 651}
503 652
504/** load & save, init *******************************************************/ 653/** load & save, init *******************************************************/
654
655ecb_inline void
656swap_sv (SV *a, SV *b)
657{
658 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
659 SV tmp;
660
661 /* swap sv_any */
662 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
663
664 /* swap sv_flags */
665 SvFLAGS (&tmp) = SvFLAGS (a);
666 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
667 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
668
669#if PERL_VERSION_ATLEAST (5,10,0)
670 /* perl 5.10 and later complicates this _quite_ a bit, but it also
671 * is much faster, so no quarrels here. alternatively, we could
672 * sv_upgrade to avoid this.
673 */
674 {
675 /* swap sv_u */
676 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
677
678 /* if SvANY points to the head, we need to adjust the pointers,
679 * as the pointer for a still points to b, and maybe vice versa.
680 */
681 #define svany_in_head(type) \
682 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
683
684 if (svany_in_head (SvTYPE (a)))
685 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
686
687 if (svany_in_head (SvTYPE (b)))
688 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
689 }
690#endif
691}
692
693/* swap sv heads, at least logically */
694static void
695swap_svs (pTHX_ Coro__State c)
696{
697 int i;
698
699 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
700 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
701}
702
703#define SWAP_SVS(coro) \
704 if (ecb_expect_false ((coro)->swap_sv)) \
705 swap_svs (aTHX_ (coro))
706
707static void
708on_enterleave_call (pTHX_ SV *cb);
505 709
506static void 710static void
507load_perl (pTHX_ Coro__State c) 711load_perl (pTHX_ Coro__State c)
508{ 712{
509 perl_slots *slot = c->slot; 713 perl_slots *slot = c->slot;
510 c->slot = 0; 714 c->slot = 0;
511 715
512 PL_mainstack = c->mainstack; 716 PL_mainstack = c->mainstack;
513 717
514 GvSV (PL_defgv) = slot->defsv; 718#if CORO_JIT
515 GvAV (PL_defgv) = slot->defav; 719 load_perl_slots (slot);
516 GvSV (PL_errgv) = slot->errsv; 720#else
517 GvSV (irsgv) = slot->irsgv;
518
519 #define VAR(name,type) PL_ ## name = slot->name; 721 #define VARx(name,expr,type) expr = slot->name;
520 # include "state.h" 722 #include "state.h"
521 #undef VAR 723#endif
522 724
523 { 725 {
524 dSP; 726 dSP;
525 727
526 CV *cv; 728 CV *cv;
527 729
528 /* now do the ugly restore mess */ 730 /* now do the ugly restore mess */
529 while (expect_true (cv = (CV *)POPs)) 731 while (ecb_expect_true (cv = (CV *)POPs))
530 { 732 {
531 put_padlist (aTHX_ cv); /* mark this padlist as available */ 733 put_padlist (aTHX_ cv); /* mark this padlist as available */
532 CvDEPTH (cv) = PTR2IV (POPs); 734 CvDEPTH (cv) = PTR2IV (POPs);
533 CvPADLIST (cv) = (AV *)POPs; 735 CvPADLIST (cv) = (PADLIST *)POPs;
534 } 736 }
535 737
536 PUTBACK; 738 PUTBACK;
537 } 739 }
538 740
539 slf_frame = c->slf_frame; 741 slf_frame = c->slf_frame;
540 CORO_THROW = c->except; 742 CORO_THROW = c->except;
743
744 if (ecb_expect_false (enable_times))
745 {
746 if (ecb_expect_false (!times_valid))
747 coro_times_update ();
748
749 coro_times_sub (c);
750 }
751
752 if (ecb_expect_false (c->on_enter))
753 {
754 int i;
755
756 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
757 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
758 }
759
760 SWAP_SVS (c);
541} 761}
542 762
543static void 763static void
544save_perl (pTHX_ Coro__State c) 764save_perl (pTHX_ Coro__State c)
545{ 765{
766 SWAP_SVS (c);
767
768 if (ecb_expect_false (c->on_leave))
769 {
770 int i;
771
772 for (i = AvFILLp (c->on_leave); i >= 0; --i)
773 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
774 }
775
776 times_valid = 0;
777
778 if (ecb_expect_false (enable_times))
779 {
780 coro_times_update (); times_valid = 1;
781 coro_times_add (c);
782 }
783
546 c->except = CORO_THROW; 784 c->except = CORO_THROW;
547 c->slf_frame = slf_frame; 785 c->slf_frame = slf_frame;
548 786
549 { 787 {
550 dSP; 788 dSP;
… …
559 797
560 XPUSHs (Nullsv); 798 XPUSHs (Nullsv);
561 /* this loop was inspired by pp_caller */ 799 /* this loop was inspired by pp_caller */
562 for (;;) 800 for (;;)
563 { 801 {
564 while (expect_true (cxix >= 0)) 802 while (ecb_expect_true (cxix >= 0))
565 { 803 {
566 PERL_CONTEXT *cx = &ccstk[cxix--]; 804 PERL_CONTEXT *cx = &ccstk[cxix--];
567 805
568 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 806 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
569 { 807 {
570 CV *cv = cx->blk_sub.cv; 808 CV *cv = cx->blk_sub.cv;
571 809
572 if (expect_true (CvDEPTH (cv))) 810 if (ecb_expect_true (CvDEPTH (cv)))
573 { 811 {
574 EXTEND (SP, 3); 812 EXTEND (SP, 3);
575 PUSHs ((SV *)CvPADLIST (cv)); 813 PUSHs ((SV *)CvPADLIST (cv));
576 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 814 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
577 PUSHs ((SV *)cv); 815 PUSHs ((SV *)cv);
… …
580 get_padlist (aTHX_ cv); 818 get_padlist (aTHX_ cv);
581 } 819 }
582 } 820 }
583 } 821 }
584 822
585 if (expect_true (top_si->si_type == PERLSI_MAIN)) 823 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
586 break; 824 break;
587 825
588 top_si = top_si->si_prev; 826 top_si = top_si->si_prev;
589 ccstk = top_si->si_cxstack; 827 ccstk = top_si->si_cxstack;
590 cxix = top_si->si_cxix; 828 cxix = top_si->si_cxix;
… …
592 830
593 PUTBACK; 831 PUTBACK;
594 } 832 }
595 833
596 /* allocate some space on the context stack for our purposes */ 834 /* allocate some space on the context stack for our purposes */
597 /* we manually unroll here, as usually 2 slots is enough */ 835 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
598 if (SLOT_COUNT >= 1) CXINC;
599 if (SLOT_COUNT >= 2) CXINC;
600 if (SLOT_COUNT >= 3) CXINC;
601 { 836 {
602 int i; 837 unsigned int i;
838
603 for (i = 3; i < SLOT_COUNT; ++i) 839 for (i = 0; i < SLOT_COUNT; ++i)
604 CXINC; 840 CXINC;
605 } 841
606 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 842 cxstack_ix -= SLOT_COUNT; /* undo allocation */
843 }
607 844
608 c->mainstack = PL_mainstack; 845 c->mainstack = PL_mainstack;
609 846
610 { 847 {
611 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 848 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
612 849
613 slot->defav = GvAV (PL_defgv); 850#if CORO_JIT
614 slot->defsv = DEFSV; 851 save_perl_slots (slot);
615 slot->errsv = ERRSV; 852#else
616 slot->irsgv = GvSV (irsgv);
617
618 #define VAR(name,type) slot->name = PL_ ## name; 853 #define VARx(name,expr,type) slot->name = expr;
619 # include "state.h" 854 #include "state.h"
620 #undef VAR 855#endif
621 } 856 }
622} 857}
623 858
624/* 859/*
625 * allocate various perl stacks. This is almost an exact copy 860 * allocate various perl stacks. This is almost an exact copy
… …
631# define coro_init_stacks(thx) init_stacks () 866# define coro_init_stacks(thx) init_stacks ()
632#else 867#else
633static void 868static void
634coro_init_stacks (pTHX) 869coro_init_stacks (pTHX)
635{ 870{
636 PL_curstackinfo = new_stackinfo(32, 8); 871 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
637 PL_curstackinfo->si_type = PERLSI_MAIN; 872 PL_curstackinfo->si_type = PERLSI_MAIN;
638 PL_curstack = PL_curstackinfo->si_stack; 873 PL_curstack = PL_curstackinfo->si_stack;
639 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 874 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
640 875
641 PL_stack_base = AvARRAY(PL_curstack); 876 PL_stack_base = AvARRAY(PL_curstack);
… …
656#endif 891#endif
657 892
658 New(54,PL_scopestack,8,I32); 893 New(54,PL_scopestack,8,I32);
659 PL_scopestack_ix = 0; 894 PL_scopestack_ix = 0;
660 PL_scopestack_max = 8; 895 PL_scopestack_max = 8;
896#if HAS_SCOPESTACK_NAME
897 New(54,PL_scopestack_name,8,const char*);
898#endif
661 899
662 New(54,PL_savestack,24,ANY); 900 New(54,PL_savestack,24,ANY);
663 PL_savestack_ix = 0; 901 PL_savestack_ix = 0;
664 PL_savestack_max = 24; 902 PL_savestack_max = 24;
665 903
… …
693 } 931 }
694 932
695 Safefree (PL_tmps_stack); 933 Safefree (PL_tmps_stack);
696 Safefree (PL_markstack); 934 Safefree (PL_markstack);
697 Safefree (PL_scopestack); 935 Safefree (PL_scopestack);
936#if HAS_SCOPESTACK_NAME
937 Safefree (PL_scopestack_name);
938#endif
698 Safefree (PL_savestack); 939 Safefree (PL_savestack);
699#if !PERL_VERSION_ATLEAST (5,10,0) 940#if !PERL_VERSION_ATLEAST (5,10,0)
700 Safefree (PL_retstack); 941 Safefree (PL_retstack);
701#endif 942#endif
702} 943}
… …
748#endif 989#endif
749 990
750/* 991/*
751 * This overrides the default magic get method of %SIG elements. 992 * This overrides the default magic get method of %SIG elements.
752 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 993 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
753 * and instead of tryign to save and restore the hash elements, we just provide 994 * and instead of trying to save and restore the hash elements (extremely slow),
754 * readback here. 995 * we just provide our own readback here.
755 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
756 * not expecting this to actually change the hook. This is a potential problem
757 * when a schedule happens then, but we ignore this.
758 */ 996 */
759static int 997static int ecb_cold
760coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 998coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
761{ 999{
762 const char *s = MgPV_nolen_const (mg); 1000 const char *s = MgPV_nolen_const (mg);
763 1001
764 if (*s == '_') 1002 if (*s == '_')
765 { 1003 {
766 SV **svp = 0; 1004 SV **svp = 0;
767 1005
768 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1006 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
769 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1007 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
770 1008
771 if (svp) 1009 if (svp)
772 { 1010 {
773 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1011 SV *ssv;
1012
1013 if (!*svp)
1014 ssv = &PL_sv_undef;
1015 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1016 ssv = sv_2mortal (newRV_inc (*svp));
1017 else
1018 ssv = *svp;
1019
1020 sv_setsv (sv, ssv);
774 return 0; 1021 return 0;
775 } 1022 }
776 } 1023 }
777 1024
778 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1025 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
779} 1026}
780 1027
781static int 1028static int ecb_cold
782coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1029coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
783{ 1030{
784 const char *s = MgPV_nolen_const (mg); 1031 const char *s = MgPV_nolen_const (mg);
785 1032
786 if (*s == '_') 1033 if (*s == '_')
… …
800 } 1047 }
801 1048
802 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1049 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
803} 1050}
804 1051
805static int 1052static int ecb_cold
806coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1053coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
807{ 1054{
808 const char *s = MgPV_nolen_const (mg); 1055 const char *s = MgPV_nolen_const (mg);
809 1056
810 if (*s == '_') 1057 if (*s == '_')
… …
815 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1062 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
816 1063
817 if (svp) 1064 if (svp)
818 { 1065 {
819 SV *old = *svp; 1066 SV *old = *svp;
820 *svp = newSVsv (sv); 1067 *svp = SvOK (sv) ? newSVsv (sv) : 0;
821 SvREFCNT_dec (old); 1068 SvREFCNT_dec (old);
822 return 0; 1069 return 0;
823 } 1070 }
824 } 1071 }
825 1072
… …
843slf_check_repeat (pTHX_ struct CoroSLF *frame) 1090slf_check_repeat (pTHX_ struct CoroSLF *frame)
844{ 1091{
845 return 1; 1092 return 1;
846} 1093}
847 1094
848static UNOP coro_setup_op; 1095static UNOP init_perl_op;
849 1096
850static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1097ecb_noinline static void /* noinline to keep it out of the transfer fast path */
851coro_setup (pTHX_ struct coro *coro) 1098init_perl (pTHX_ struct coro *coro)
852{ 1099{
853 /* 1100 /*
854 * emulate part of the perl startup here. 1101 * emulate part of the perl startup here.
855 */ 1102 */
856 coro_init_stacks (aTHX); 1103 coro_init_stacks (aTHX);
857 1104
858 PL_runops = RUNOPS_DEFAULT; 1105 PL_runops = RUNOPS_DEFAULT;
859 PL_curcop = &PL_compiling; 1106 PL_curcop = &PL_compiling;
860 PL_in_eval = EVAL_NULL; 1107 PL_in_eval = EVAL_NULL;
861 PL_comppad = 0; 1108 PL_comppad = 0;
1109 PL_comppad_name = 0;
1110 PL_comppad_name_fill = 0;
1111 PL_comppad_name_floor = 0;
862 PL_curpm = 0; 1112 PL_curpm = 0;
863 PL_curpad = 0; 1113 PL_curpad = 0;
864 PL_localizing = 0; 1114 PL_localizing = 0;
865 PL_dirty = 0;
866 PL_restartop = 0; 1115 PL_restartop = 0;
867#if PERL_VERSION_ATLEAST (5,10,0) 1116#if PERL_VERSION_ATLEAST (5,10,0)
868 PL_parser = 0; 1117 PL_parser = 0;
869#endif 1118#endif
1119 PL_hints = 0;
870 1120
871 /* recreate the die/warn hooks */ 1121 /* recreate the die/warn hooks */
872 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1122 PL_diehook = SvREFCNT_inc (rv_diehook);
873 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1123 PL_warnhook = SvREFCNT_inc (rv_warnhook);
874 1124
875 GvSV (PL_defgv) = newSV (0); 1125 GvSV (PL_defgv) = newSV (0);
876 GvAV (PL_defgv) = coro->args; coro->args = 0; 1126 GvAV (PL_defgv) = coro->args; coro->args = 0;
877 GvSV (PL_errgv) = newSV (0); 1127 GvSV (PL_errgv) = newSV (0);
878 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1128 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1129 GvHV (PL_hintgv) = 0;
879 PL_rs = newSVsv (GvSV (irsgv)); 1130 PL_rs = newSVsv (GvSV (irsgv));
880 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1131 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
881 1132
882 { 1133 {
883 dSP; 1134 dSP;
… …
898 /* this newly created coroutine might be run on an existing cctx which most 1149 /* this newly created coroutine might be run on an existing cctx which most
899 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1150 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
900 */ 1151 */
901 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1152 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
902 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1153 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1154 slf_frame.destroy = 0;
903 1155
904 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1156 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
905 coro_setup_op.op_next = PL_op; 1157 init_perl_op.op_next = PL_op;
906 coro_setup_op.op_type = OP_ENTERSUB; 1158 init_perl_op.op_type = OP_ENTERSUB;
907 coro_setup_op.op_ppaddr = pp_slf; 1159 init_perl_op.op_ppaddr = pp_slf;
908 /* no flags etc. required, as an init function won't be called */ 1160 /* no flags etc. required, as an init function won't be called */
909 1161
910 PL_op = (OP *)&coro_setup_op; 1162 PL_op = (OP *)&init_perl_op;
911 1163
912 /* copy throw, in case it was set before coro_setup */ 1164 /* copy throw, in case it was set before init_perl */
913 CORO_THROW = coro->except; 1165 CORO_THROW = coro->except;
914}
915 1166
1167 SWAP_SVS (coro);
1168
1169 if (ecb_expect_false (enable_times))
1170 {
1171 coro_times_update ();
1172 coro_times_sub (coro);
1173 }
1174}
1175
916static void 1176static void
917coro_destruct (pTHX_ struct coro *coro) 1177coro_unwind_stacks (pTHX)
918{ 1178{
919 if (!IN_DESTRUCT) 1179 if (!IN_DESTRUCT)
920 { 1180 {
921 /* restore all saved variables and stuff */ 1181 /* restore all saved variables and stuff */
922 LEAVE_SCOPE (0); 1182 LEAVE_SCOPE (0);
… …
930 POPSTACK_TO (PL_mainstack); 1190 POPSTACK_TO (PL_mainstack);
931 1191
932 /* unwind main stack */ 1192 /* unwind main stack */
933 dounwind (-1); 1193 dounwind (-1);
934 } 1194 }
1195}
935 1196
936 SvREFCNT_dec (GvSV (PL_defgv)); 1197static void
937 SvREFCNT_dec (GvAV (PL_defgv)); 1198destroy_perl (pTHX_ struct coro *coro)
938 SvREFCNT_dec (GvSV (PL_errgv)); 1199{
939 SvREFCNT_dec (PL_defoutgv); 1200 SV *svf [9];
940 SvREFCNT_dec (PL_rs);
941 SvREFCNT_dec (GvSV (irsgv));
942 1201
943 SvREFCNT_dec (PL_diehook);
944 SvREFCNT_dec (PL_warnhook);
945 1202 {
1203 SV *old_current = SvRV (coro_current);
1204 struct coro *current = SvSTATE (old_current);
1205
1206 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1207
1208 save_perl (aTHX_ current);
1209
1210 /* this will cause transfer_check to croak on block*/
1211 SvRV_set (coro_current, (SV *)coro->hv);
1212
1213 load_perl (aTHX_ coro);
1214
1215 coro_unwind_stacks (aTHX);
1216
1217 /* restore swapped sv's */
1218 SWAP_SVS (coro);
1219
1220 coro_destruct_stacks (aTHX);
1221
1222 /* now save some sv's to be free'd later */
1223 svf [0] = GvSV (PL_defgv);
1224 svf [1] = (SV *)GvAV (PL_defgv);
1225 svf [2] = GvSV (PL_errgv);
1226 svf [3] = (SV *)PL_defoutgv;
1227 svf [4] = PL_rs;
1228 svf [5] = GvSV (irsgv);
1229 svf [6] = (SV *)GvHV (PL_hintgv);
1230 svf [7] = PL_diehook;
1231 svf [8] = PL_warnhook;
1232 assert (9 == sizeof (svf) / sizeof (*svf));
1233
1234 SvRV_set (coro_current, old_current);
1235
1236 load_perl (aTHX_ current);
1237 }
1238
1239 {
1240 unsigned int i;
1241
1242 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1243 SvREFCNT_dec (svf [i]);
1244
946 SvREFCNT_dec (coro->saved_deffh); 1245 SvREFCNT_dec (coro->saved_deffh);
947 SvREFCNT_dec (coro->rouse_cb); 1246 SvREFCNT_dec (coro->rouse_cb);
948 SvREFCNT_dec (coro->invoke_cb); 1247 SvREFCNT_dec (coro->invoke_cb);
949 SvREFCNT_dec (coro->invoke_av); 1248 SvREFCNT_dec (coro->invoke_av);
950 1249 }
951 coro_destruct_stacks (aTHX);
952} 1250}
953 1251
954INLINE void 1252ecb_inline void
955free_coro_mortal (pTHX) 1253free_coro_mortal (pTHX)
956{ 1254{
957 if (expect_true (coro_mortal)) 1255 if (ecb_expect_true (coro_mortal))
958 { 1256 {
959 SvREFCNT_dec (coro_mortal); 1257 SvREFCNT_dec ((SV *)coro_mortal);
960 coro_mortal = 0; 1258 coro_mortal = 0;
961 } 1259 }
962} 1260}
963 1261
964static int 1262static int
965runops_trace (pTHX) 1263runops_trace (pTHX)
966{ 1264{
967 COP *oldcop = 0; 1265 COP *oldcop = 0;
968 int oldcxix = -2; 1266 int oldcxix = -2;
969 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
970 coro_cctx *cctx = coro->cctx;
971 1267
972 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1268 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
973 { 1269 {
974 PERL_ASYNC_CHECK (); 1270 PERL_ASYNC_CHECK ();
975 1271
976 if (cctx->flags & CC_TRACE_ALL) 1272 if (cctx_current->flags & CC_TRACE_ALL)
977 { 1273 {
978 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1274 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
979 { 1275 {
980 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1276 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
981 SV **bot, **top; 1277 SV **bot, **top;
982 AV *av = newAV (); /* return values */ 1278 AV *av = newAV (); /* return values */
983 SV **cb; 1279 SV **cb;
… …
1020 1316
1021 if (PL_curcop != &PL_compiling) 1317 if (PL_curcop != &PL_compiling)
1022 { 1318 {
1023 SV **cb; 1319 SV **cb;
1024 1320
1025 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1321 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1026 { 1322 {
1027 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1323 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1028 1324
1029 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1325 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1030 { 1326 {
… …
1053 } 1349 }
1054 1350
1055 oldcxix = cxstack_ix; 1351 oldcxix = cxstack_ix;
1056 } 1352 }
1057 1353
1058 if (cctx->flags & CC_TRACE_LINE) 1354 if (cctx_current->flags & CC_TRACE_LINE)
1059 { 1355 {
1060 dSP; 1356 dSP;
1061 1357
1062 PL_runops = RUNOPS_DEFAULT; 1358 PL_runops = RUNOPS_DEFAULT;
1063 ENTER; 1359 ENTER;
… …
1082 1378
1083 TAINT_NOT; 1379 TAINT_NOT;
1084 return 0; 1380 return 0;
1085} 1381}
1086 1382
1087static struct coro_cctx *cctx_ssl_cctx;
1088static struct CoroSLF cctx_ssl_frame; 1383static struct CoroSLF cctx_ssl_frame;
1089 1384
1090static void 1385static void
1091slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1386slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1092{ 1387{
1093 ta->prev = (struct coro *)cctx_ssl_cctx;
1094 ta->next = 0; 1388 ta->prev = 0;
1095} 1389}
1096 1390
1097static int 1391static int
1098slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1392slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1099{ 1393{
… …
1101 1395
1102 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1396 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1103} 1397}
1104 1398
1105/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1399/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1106static void NOINLINE 1400static void ecb_noinline
1107cctx_prepare (pTHX_ coro_cctx *cctx) 1401cctx_prepare (pTHX)
1108{ 1402{
1109 PL_top_env = &PL_start_env; 1403 PL_top_env = &PL_start_env;
1110 1404
1111 if (cctx->flags & CC_TRACE) 1405 if (cctx_current->flags & CC_TRACE)
1112 PL_runops = runops_trace; 1406 PL_runops = runops_trace;
1113 1407
1114 /* we already must be executing an SLF op, there is no other valid way 1408 /* we already must be executing an SLF op, there is no other valid way
1115 * that can lead to creation of a new cctx */ 1409 * that can lead to creation of a new cctx */
1116 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1410 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1117 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1411 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1118 1412
1119 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1413 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1120 cctx_ssl_cctx = cctx;
1121 cctx_ssl_frame = slf_frame; 1414 cctx_ssl_frame = slf_frame;
1122 1415
1123 slf_frame.prepare = slf_prepare_set_stacklevel; 1416 slf_frame.prepare = slf_prepare_set_stacklevel;
1124 slf_frame.check = slf_check_set_stacklevel; 1417 slf_frame.check = slf_check_set_stacklevel;
1125} 1418}
1126 1419
1127/* the tail of transfer: execute stuff we can only do after a transfer */ 1420/* the tail of transfer: execute stuff we can only do after a transfer */
1128INLINE void 1421ecb_inline void
1129transfer_tail (pTHX) 1422transfer_tail (pTHX)
1130{ 1423{
1131 free_coro_mortal (aTHX); 1424 free_coro_mortal (aTHX);
1425}
1426
1427/* try to exit the same way perl's main function would do */
1428/* we do not bother resetting the environment or other things *7
1429/* that are not, uhm, essential */
1430/* this obviously also doesn't work when perl is embedded */
1431static void ecb_noinline ecb_cold
1432perlish_exit (pTHX)
1433{
1434 int exitstatus = perl_destruct (PL_curinterp);
1435 perl_free (PL_curinterp);
1436 exit (exitstatus);
1132} 1437}
1133 1438
1134/* 1439/*
1135 * this is a _very_ stripped down perl interpreter ;) 1440 * this is a _very_ stripped down perl interpreter ;)
1136 */ 1441 */
… …
1148 /* normally we would need to skip the entersub here */ 1453 /* normally we would need to skip the entersub here */
1149 /* not doing so will re-execute it, which is exactly what we want */ 1454 /* not doing so will re-execute it, which is exactly what we want */
1150 /* PL_nop = PL_nop->op_next */ 1455 /* PL_nop = PL_nop->op_next */
1151 1456
1152 /* inject a fake subroutine call to cctx_init */ 1457 /* inject a fake subroutine call to cctx_init */
1153 cctx_prepare (aTHX_ (coro_cctx *)arg); 1458 cctx_prepare (aTHX);
1154 1459
1155 /* cctx_run is the alternative tail of transfer() */ 1460 /* cctx_run is the alternative tail of transfer() */
1156 transfer_tail (aTHX); 1461 transfer_tail (aTHX);
1157 1462
1158 /* somebody or something will hit me for both perl_run and PL_restartop */ 1463 /* somebody or something will hit me for both perl_run and PL_restartop */
1159 PL_restartop = PL_op; 1464 PL_restartop = PL_op;
1160 perl_run (PL_curinterp); 1465 perl_run (PL_curinterp);
1161 /* 1466 /*
1162 * Unfortunately, there is no way to get at the return values of the 1467 * Unfortunately, there is no way to get at the return values of the
1163 * coro body here, as perl_run destroys these 1468 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1469 * runtime errors here, as this is just a random interpreter, not a thread.
1164 */ 1470 */
1165 1471
1166 /* 1472 /*
1167 * If perl-run returns we assume exit() was being called or the coro 1473 * If perl-run returns we assume exit() was being called or the coro
1168 * fell off the end, which seems to be the only valid (non-bug) 1474 * fell off the end, which seems to be the only valid (non-bug)
1169 * reason for perl_run to return. We try to exit by jumping to the 1475 * reason for perl_run to return. We try to mimic whatever perl is normally
1170 * bootstrap-time "top" top_env, as we cannot restore the "main" 1476 * doing in that case. YMMV.
1171 * coroutine as Coro has no such concept
1172 */ 1477 */
1173 PL_top_env = main_top_env; 1478 perlish_exit (aTHX);
1174 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1175 } 1479 }
1176} 1480}
1177 1481
1178static coro_cctx * 1482static coro_cctx *
1179cctx_new () 1483cctx_new (void)
1180{ 1484{
1181 coro_cctx *cctx; 1485 coro_cctx *cctx;
1182 1486
1183 ++cctx_count; 1487 ++cctx_count;
1184 New (0, cctx, 1, coro_cctx); 1488 New (0, cctx, 1, coro_cctx);
… …
1190 return cctx; 1494 return cctx;
1191} 1495}
1192 1496
1193/* create a new cctx only suitable as source */ 1497/* create a new cctx only suitable as source */
1194static coro_cctx * 1498static coro_cctx *
1195cctx_new_empty () 1499cctx_new_empty (void)
1196{ 1500{
1197 coro_cctx *cctx = cctx_new (); 1501 coro_cctx *cctx = cctx_new ();
1198 1502
1199 cctx->sptr = 0; 1503 cctx->stack.sptr = 0;
1200 coro_create (&cctx->cctx, 0, 0, 0, 0); 1504 coro_create (&cctx->cctx, 0, 0, 0, 0);
1201 1505
1202 return cctx; 1506 return cctx;
1203} 1507}
1204 1508
1205/* create a new cctx suitable as destination/running a perl interpreter */ 1509/* create a new cctx suitable as destination/running a perl interpreter */
1206static coro_cctx * 1510static coro_cctx *
1207cctx_new_run () 1511cctx_new_run (void)
1208{ 1512{
1209 coro_cctx *cctx = cctx_new (); 1513 coro_cctx *cctx = cctx_new ();
1210 void *stack_start;
1211 size_t stack_size;
1212 1514
1213#if HAVE_MMAP 1515 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1214 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1215 /* mmap supposedly does allocate-on-write for us */
1216 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1217
1218 if (cctx->sptr != (void *)-1)
1219 {
1220 #if CORO_STACKGUARD
1221 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1222 #endif
1223 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1224 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1225 cctx->flags |= CC_MAPPED;
1226 } 1516 {
1227 else
1228#endif
1229 {
1230 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1231 New (0, cctx->sptr, cctx_stacksize, long);
1232
1233 if (!cctx->sptr)
1234 {
1235 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1517 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1236 _exit (EXIT_FAILURE); 1518 _exit (EXIT_FAILURE);
1237 }
1238
1239 stack_start = cctx->sptr;
1240 stack_size = cctx->ssize;
1241 } 1519 }
1242 1520
1243 #if CORO_USE_VALGRIND
1244 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1245 #endif
1246
1247 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1521 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1248 1522
1249 return cctx; 1523 return cctx;
1250} 1524}
1251 1525
1252static void 1526static void
1253cctx_destroy (coro_cctx *cctx) 1527cctx_destroy (coro_cctx *cctx)
1254{ 1528{
1255 if (!cctx) 1529 if (!cctx)
1256 return; 1530 return;
1257 1531
1532 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1533
1258 --cctx_count; 1534 --cctx_count;
1259 coro_destroy (&cctx->cctx); 1535 coro_destroy (&cctx->cctx);
1260 1536
1261 /* coro_transfer creates new, empty cctx's */ 1537 coro_stack_free (&cctx->stack);
1262 if (cctx->sptr)
1263 {
1264 #if CORO_USE_VALGRIND
1265 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1266 #endif
1267
1268#if HAVE_MMAP
1269 if (cctx->flags & CC_MAPPED)
1270 munmap (cctx->sptr, cctx->ssize);
1271 else
1272#endif
1273 Safefree (cctx->sptr);
1274 }
1275 1538
1276 Safefree (cctx); 1539 Safefree (cctx);
1277} 1540}
1278 1541
1279/* wether this cctx should be destructed */ 1542/* wether this cctx should be destructed */
1280#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1543#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1281 1544
1282static coro_cctx * 1545static coro_cctx *
1283cctx_get (pTHX) 1546cctx_get (pTHX)
1284{ 1547{
1285 while (expect_true (cctx_first)) 1548 while (ecb_expect_true (cctx_first))
1286 { 1549 {
1287 coro_cctx *cctx = cctx_first; 1550 coro_cctx *cctx = cctx_first;
1288 cctx_first = cctx->next; 1551 cctx_first = cctx->next;
1289 --cctx_idle; 1552 --cctx_idle;
1290 1553
1291 if (expect_true (!CCTX_EXPIRED (cctx))) 1554 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1292 return cctx; 1555 return cctx;
1293 1556
1294 cctx_destroy (cctx); 1557 cctx_destroy (cctx);
1295 } 1558 }
1296 1559
… …
1298} 1561}
1299 1562
1300static void 1563static void
1301cctx_put (coro_cctx *cctx) 1564cctx_put (coro_cctx *cctx)
1302{ 1565{
1303 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1566 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1304 1567
1305 /* free another cctx if overlimit */ 1568 /* free another cctx if overlimit */
1306 if (expect_false (cctx_idle >= cctx_max_idle)) 1569 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1307 { 1570 {
1308 coro_cctx *first = cctx_first; 1571 coro_cctx *first = cctx_first;
1309 cctx_first = first->next; 1572 cctx_first = first->next;
1310 --cctx_idle; 1573 --cctx_idle;
1311 1574
… …
1322static void 1585static void
1323transfer_check (pTHX_ struct coro *prev, struct coro *next) 1586transfer_check (pTHX_ struct coro *prev, struct coro *next)
1324{ 1587{
1325 /* TODO: throwing up here is considered harmful */ 1588 /* TODO: throwing up here is considered harmful */
1326 1589
1327 if (expect_true (prev != next)) 1590 if (ecb_expect_true (prev != next))
1328 { 1591 {
1329 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1592 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1330 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1593 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1331 1594
1332 if (expect_false (next->flags & CF_RUNNING)) 1595 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1333 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1334
1335 if (expect_false (next->flags & CF_DESTROYED))
1336 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1596 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1337 1597
1338#if !PERL_VERSION_ATLEAST (5,10,0) 1598#if !PERL_VERSION_ATLEAST (5,10,0)
1339 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1599 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1340 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1600 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1341#endif 1601#endif
1342 } 1602 }
1343} 1603}
1344 1604
1345/* always use the TRANSFER macro */ 1605/* always use the TRANSFER macro */
1346static void NOINLINE /* noinline so we have a fixed stackframe */ 1606static void ecb_noinline /* noinline so we have a fixed stackframe */
1347transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1607transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1348{ 1608{
1349 dSTACKLEVEL; 1609 dSTACKLEVEL;
1350 1610
1351 /* sometimes transfer is only called to set idle_sp */ 1611 /* sometimes transfer is only called to set idle_sp */
1352 if (expect_false (!next)) 1612 if (ecb_expect_false (!prev))
1353 { 1613 {
1354 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1614 cctx_current->idle_sp = STACKLEVEL;
1355 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1615 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1356 } 1616 }
1357 else if (expect_true (prev != next)) 1617 else if (ecb_expect_true (prev != next))
1358 { 1618 {
1359 coro_cctx *prev__cctx; 1619 coro_cctx *cctx_prev;
1360 1620
1361 if (expect_false (prev->flags & CF_NEW)) 1621 if (ecb_expect_false (prev->flags & CF_NEW))
1362 { 1622 {
1363 /* create a new empty/source context */ 1623 /* create a new empty/source context */
1364 prev->cctx = cctx_new_empty ();
1365 prev->flags &= ~CF_NEW; 1624 prev->flags &= ~CF_NEW;
1366 prev->flags |= CF_RUNNING; 1625 prev->flags |= CF_RUNNING;
1367 } 1626 }
1368 1627
1369 prev->flags &= ~CF_RUNNING; 1628 prev->flags &= ~CF_RUNNING;
1370 next->flags |= CF_RUNNING; 1629 next->flags |= CF_RUNNING;
1371 1630
1372 /* first get rid of the old state */ 1631 /* first get rid of the old state */
1373 save_perl (aTHX_ prev); 1632 save_perl (aTHX_ prev);
1374 1633
1375 if (expect_false (next->flags & CF_NEW)) 1634 if (ecb_expect_false (next->flags & CF_NEW))
1376 { 1635 {
1377 /* need to start coroutine */ 1636 /* need to start coroutine */
1378 next->flags &= ~CF_NEW; 1637 next->flags &= ~CF_NEW;
1379 /* setup coroutine call */ 1638 /* setup coroutine call */
1380 coro_setup (aTHX_ next); 1639 init_perl (aTHX_ next);
1381 } 1640 }
1382 else 1641 else
1383 load_perl (aTHX_ next); 1642 load_perl (aTHX_ next);
1384 1643
1385 prev__cctx = prev->cctx;
1386
1387 /* possibly untie and reuse the cctx */ 1644 /* possibly untie and reuse the cctx */
1388 if (expect_true ( 1645 if (ecb_expect_true (
1389 prev__cctx->idle_sp == STACKLEVEL 1646 cctx_current->idle_sp == STACKLEVEL
1390 && !(prev__cctx->flags & CC_TRACE) 1647 && !(cctx_current->flags & CC_TRACE)
1391 && !force_cctx 1648 && !force_cctx
1392 )) 1649 ))
1393 { 1650 {
1394 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1651 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1395 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1652 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1396 1653
1397 prev->cctx = 0;
1398
1399 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1654 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1400 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1655 /* without this the next cctx_get might destroy the running cctx while still in use */
1401 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1656 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1402 if (!next->cctx) 1657 if (ecb_expect_true (!next->cctx))
1403 next->cctx = cctx_get (aTHX); 1658 next->cctx = cctx_get (aTHX);
1404 1659
1405 cctx_put (prev__cctx); 1660 cctx_put (cctx_current);
1406 } 1661 }
1662 else
1663 prev->cctx = cctx_current;
1407 1664
1408 ++next->usecount; 1665 ++next->usecount;
1409 1666
1410 if (expect_true (!next->cctx)) 1667 cctx_prev = cctx_current;
1411 next->cctx = cctx_get (aTHX); 1668 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1412 1669
1413 if (expect_false (prev__cctx != next->cctx)) 1670 next->cctx = 0;
1671
1672 if (ecb_expect_false (cctx_prev != cctx_current))
1414 { 1673 {
1415 prev__cctx->top_env = PL_top_env; 1674 cctx_prev->top_env = PL_top_env;
1416 PL_top_env = next->cctx->top_env; 1675 PL_top_env = cctx_current->top_env;
1417 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1676 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1418 } 1677 }
1419 1678
1420 transfer_tail (aTHX); 1679 transfer_tail (aTHX);
1421 } 1680 }
1422} 1681}
… …
1424#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1683#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1425#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1684#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1426 1685
1427/** high level stuff ********************************************************/ 1686/** high level stuff ********************************************************/
1428 1687
1688/* this function is actually Coro, not Coro::State, but we call it from here */
1689/* because it is convenient - but it hasn't been declared yet for that reason */
1429static int 1690static void
1691coro_call_on_destroy (pTHX_ struct coro *coro);
1692
1693static void
1430coro_state_destroy (pTHX_ struct coro *coro) 1694coro_state_destroy (pTHX_ struct coro *coro)
1431{ 1695{
1432 if (coro->flags & CF_DESTROYED) 1696 if (coro->flags & CF_ZOMBIE)
1433 return 0; 1697 return;
1434 1698
1435 if (coro->on_destroy)
1436 coro->on_destroy (aTHX_ coro); 1699 slf_destroy (aTHX_ coro);
1437 1700
1438 coro->flags |= CF_DESTROYED; 1701 coro->flags |= CF_ZOMBIE;
1439 1702
1440 if (coro->flags & CF_READY) 1703 if (coro->flags & CF_READY)
1441 { 1704 {
1442 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1705 /* reduce nready, as destroying a ready coro effectively unreadies it */
1443 /* alternative: look through all ready queues and remove the coro */ 1706 /* alternative: look through all ready queues and remove the coro */
1444 --coro_nready; 1707 --coro_nready;
1445 } 1708 }
1446 else 1709 else
1447 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1710 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1448 1711
1449 if (coro->mainstack && coro->mainstack != main_mainstack) 1712 if (coro->next) coro->next->prev = coro->prev;
1450 { 1713 if (coro->prev) coro->prev->next = coro->next;
1451 struct coro temp; 1714 if (coro == coro_first) coro_first = coro->next;
1452 1715
1453 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1716 if (coro->mainstack
1454 1717 && coro->mainstack != main_mainstack
1455 save_perl (aTHX_ &temp); 1718 && coro->slot
1719 && !PL_dirty)
1456 load_perl (aTHX_ coro); 1720 destroy_perl (aTHX_ coro);
1457
1458 coro_destruct (aTHX_ coro);
1459
1460 load_perl (aTHX_ &temp);
1461
1462 coro->slot = 0;
1463 }
1464 1721
1465 cctx_destroy (coro->cctx); 1722 cctx_destroy (coro->cctx);
1466 SvREFCNT_dec (coro->startcv); 1723 SvREFCNT_dec (coro->startcv);
1467 SvREFCNT_dec (coro->args); 1724 SvREFCNT_dec (coro->args);
1725 SvREFCNT_dec (coro->swap_sv);
1468 SvREFCNT_dec (CORO_THROW); 1726 SvREFCNT_dec (CORO_THROW);
1469 1727
1470 if (coro->next) coro->next->prev = coro->prev; 1728 coro_call_on_destroy (aTHX_ coro);
1471 if (coro->prev) coro->prev->next = coro->next;
1472 if (coro == coro_first) coro_first = coro->next;
1473 1729
1474 return 1; 1730 /* more destruction mayhem in coro_state_free */
1475} 1731}
1476 1732
1477static int 1733static int
1478coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1734coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1479{ 1735{
1480 struct coro *coro = (struct coro *)mg->mg_ptr; 1736 struct coro *coro = (struct coro *)mg->mg_ptr;
1481 mg->mg_ptr = 0; 1737 mg->mg_ptr = 0;
1482 1738
1483 coro->hv = 0;
1484
1485 if (--coro->refcnt < 0)
1486 {
1487 coro_state_destroy (aTHX_ coro); 1739 coro_state_destroy (aTHX_ coro);
1740 SvREFCNT_dec (coro->on_destroy);
1741 SvREFCNT_dec (coro->status);
1742
1488 Safefree (coro); 1743 Safefree (coro);
1489 }
1490 1744
1491 return 0; 1745 return 0;
1492} 1746}
1493 1747
1494static int 1748static int ecb_cold
1495coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1749coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1496{ 1750{
1497 struct coro *coro = (struct coro *)mg->mg_ptr; 1751 /* called when perl clones the current process the slow way (windows process emulation) */
1498 1752 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1499 ++coro->refcnt; 1753 mg->mg_ptr = 0;
1754 mg->mg_virtual = 0;
1500 1755
1501 return 0; 1756 return 0;
1502} 1757}
1503 1758
1504static MGVTBL coro_state_vtbl = { 1759static MGVTBL coro_state_vtbl = {
… …
1527 1782
1528 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1783 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1529 TRANSFER (ta, 1); 1784 TRANSFER (ta, 1);
1530} 1785}
1531 1786
1532/*****************************************************************************/
1533/* gensub: simple closure generation utility */
1534
1535#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1536
1537/* create a closure from XS, returns a code reference */
1538/* the arg can be accessed via GENSUB_ARG from the callback */
1539/* the callback must use dXSARGS/XSRETURN */
1540static SV *
1541gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1542{
1543 CV *cv = (CV *)newSV (0);
1544
1545 sv_upgrade ((SV *)cv, SVt_PVCV);
1546
1547 CvANON_on (cv);
1548 CvISXSUB_on (cv);
1549 CvXSUB (cv) = xsub;
1550 GENSUB_ARG = arg;
1551
1552 return newRV_noinc ((SV *)cv);
1553}
1554
1555/** Coro ********************************************************************/ 1787/** Coro ********************************************************************/
1556 1788
1557INLINE void 1789ecb_inline void
1558coro_enq (pTHX_ struct coro *coro) 1790coro_enq (pTHX_ struct coro *coro)
1559{ 1791{
1560 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1792 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1561}
1562 1793
1563INLINE SV * 1794 SvREFCNT_inc_NN (coro->hv);
1795
1796 coro->next_ready = 0;
1797 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1798 ready [1] = coro;
1799}
1800
1801ecb_inline struct coro *
1564coro_deq (pTHX) 1802coro_deq (pTHX)
1565{ 1803{
1566 int prio; 1804 int prio;
1567 1805
1568 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1806 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1569 if (AvFILLp (coro_ready [prio]) >= 0) 1807 {
1570 return av_shift (coro_ready [prio]); 1808 struct coro **ready = coro_ready [prio];
1809
1810 if (ready [0])
1811 {
1812 struct coro *coro = ready [0];
1813 ready [0] = coro->next_ready;
1814 return coro;
1815 }
1816 }
1571 1817
1572 return 0; 1818 return 0;
1819}
1820
1821static void
1822invoke_sv_ready_hook_helper (void)
1823{
1824 dTHX;
1825 dSP;
1826
1827 ENTER;
1828 SAVETMPS;
1829
1830 PUSHMARK (SP);
1831 PUTBACK;
1832 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1833
1834 FREETMPS;
1835 LEAVE;
1573} 1836}
1574 1837
1575static int 1838static int
1576api_ready (pTHX_ SV *coro_sv) 1839api_ready (pTHX_ SV *coro_sv)
1577{ 1840{
1578 struct coro *coro;
1579 SV *sv_hook;
1580 void (*xs_hook)(void);
1581
1582 if (SvROK (coro_sv))
1583 coro_sv = SvRV (coro_sv);
1584
1585 coro = SvSTATE (coro_sv); 1841 struct coro *coro = SvSTATE (coro_sv);
1586 1842
1587 if (coro->flags & CF_READY) 1843 if (coro->flags & CF_READY)
1588 return 0; 1844 return 0;
1589 1845
1590 coro->flags |= CF_READY; 1846 coro->flags |= CF_READY;
1591 1847
1592 sv_hook = coro_nready ? 0 : coro_readyhook;
1593 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1594
1595 coro_enq (aTHX_ coro); 1848 coro_enq (aTHX_ coro);
1596 ++coro_nready;
1597 1849
1598 if (sv_hook) 1850 if (!coro_nready++)
1599 { 1851 if (coroapi.readyhook)
1600 dSP; 1852 coroapi.readyhook ();
1601
1602 ENTER;
1603 SAVETMPS;
1604
1605 PUSHMARK (SP);
1606 PUTBACK;
1607 call_sv (sv_hook, G_VOID | G_DISCARD);
1608
1609 FREETMPS;
1610 LEAVE;
1611 }
1612
1613 if (xs_hook)
1614 xs_hook ();
1615 1853
1616 return 1; 1854 return 1;
1617} 1855}
1618 1856
1619static int 1857static int
… …
1621{ 1859{
1622 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1860 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1623} 1861}
1624 1862
1625/* expects to own a reference to next->hv */ 1863/* expects to own a reference to next->hv */
1626INLINE void 1864ecb_inline void
1627prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1865prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1628{ 1866{
1629 SV *prev_sv = SvRV (coro_current); 1867 SV *prev_sv = SvRV (coro_current);
1630 1868
1631 ta->prev = SvSTATE_hv (prev_sv); 1869 ta->prev = SvSTATE_hv (prev_sv);
… …
1642static void 1880static void
1643prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1881prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1644{ 1882{
1645 for (;;) 1883 for (;;)
1646 { 1884 {
1647 SV *next_sv = coro_deq (aTHX); 1885 struct coro *next = coro_deq (aTHX);
1648 1886
1649 if (expect_true (next_sv)) 1887 if (ecb_expect_true (next))
1650 { 1888 {
1651 struct coro *next = SvSTATE_hv (next_sv);
1652
1653 /* cannot transfer to destroyed coros, skip and look for next */ 1889 /* cannot transfer to destroyed coros, skip and look for next */
1654 if (expect_false (next->flags & CF_DESTROYED)) 1890 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1655 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1891 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1656 else 1892 else
1657 { 1893 {
1658 next->flags &= ~CF_READY; 1894 next->flags &= ~CF_READY;
1659 --coro_nready; 1895 --coro_nready;
1660 1896
… …
1663 } 1899 }
1664 } 1900 }
1665 else 1901 else
1666 { 1902 {
1667 /* nothing to schedule: call the idle handler */ 1903 /* nothing to schedule: call the idle handler */
1904 if (SvROK (sv_idle)
1905 && SvOBJECT (SvRV (sv_idle)))
1906 {
1907 if (SvRV (sv_idle) == SvRV (coro_current))
1908 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1909
1910 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1911 api_ready (aTHX_ SvRV (sv_idle));
1912 --coro_nready;
1913 }
1914 else
1915 {
1916 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1668 dSP; 1917 dSP;
1669 1918
1670 ENTER; 1919 ENTER;
1671 SAVETMPS; 1920 SAVETMPS;
1672 1921
1673 PUSHMARK (SP); 1922 PUSHMARK (SP);
1674 PUTBACK; 1923 PUTBACK;
1675 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1924 call_sv (sv_idle, G_VOID | G_DISCARD);
1676 1925
1677 FREETMPS; 1926 FREETMPS;
1678 LEAVE; 1927 LEAVE;
1928 }
1679 } 1929 }
1680 } 1930 }
1681} 1931}
1682 1932
1683INLINE void 1933ecb_inline void
1684prepare_cede (pTHX_ struct coro_transfer_args *ta) 1934prepare_cede (pTHX_ struct coro_transfer_args *ta)
1685{ 1935{
1686 api_ready (aTHX_ coro_current); 1936 api_ready (aTHX_ coro_current);
1687 prepare_schedule (aTHX_ ta); 1937 prepare_schedule (aTHX_ ta);
1688} 1938}
1689 1939
1690INLINE void 1940ecb_inline void
1691prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1941prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1692{ 1942{
1693 SV *prev = SvRV (coro_current); 1943 SV *prev = SvRV (coro_current);
1694 1944
1695 if (coro_nready) 1945 if (coro_nready)
… …
1725{ 1975{
1726 struct coro_transfer_args ta; 1976 struct coro_transfer_args ta;
1727 1977
1728 prepare_cede (aTHX_ &ta); 1978 prepare_cede (aTHX_ &ta);
1729 1979
1730 if (expect_true (ta.prev != ta.next)) 1980 if (ecb_expect_true (ta.prev != ta.next))
1731 { 1981 {
1732 TRANSFER (ta, 1); 1982 TRANSFER (ta, 1);
1733 return 1; 1983 return 1;
1734 } 1984 }
1735 else 1985 else
… …
1754static void 2004static void
1755api_trace (pTHX_ SV *coro_sv, int flags) 2005api_trace (pTHX_ SV *coro_sv, int flags)
1756{ 2006{
1757 struct coro *coro = SvSTATE (coro_sv); 2007 struct coro *coro = SvSTATE (coro_sv);
1758 2008
2009 if (coro->flags & CF_RUNNING)
2010 croak ("cannot enable tracing on a running coroutine, caught");
2011
1759 if (flags & CC_TRACE) 2012 if (flags & CC_TRACE)
1760 { 2013 {
1761 if (!coro->cctx) 2014 if (!coro->cctx)
1762 coro->cctx = cctx_new_run (); 2015 coro->cctx = cctx_new_run ();
1763 else if (!(coro->cctx->flags & CC_TRACE)) 2016 else if (!(coro->cctx->flags & CC_TRACE))
1764 croak ("cannot enable tracing on coroutine with custom stack,"); 2017 croak ("cannot enable tracing on coroutine with custom stack, caught");
1765 2018
1766 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2019 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1767 } 2020 }
1768 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2021 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1769 { 2022 {
… …
1775 coro->slot->runops = RUNOPS_DEFAULT; 2028 coro->slot->runops = RUNOPS_DEFAULT;
1776 } 2029 }
1777} 2030}
1778 2031
1779static void 2032static void
2033coro_push_av (pTHX_ AV *av, I32 gimme_v)
2034{
2035 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2036 {
2037 dSP;
2038
2039 if (gimme_v == G_SCALAR)
2040 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2041 else
2042 {
2043 int i;
2044 EXTEND (SP, AvFILLp (av) + 1);
2045
2046 for (i = 0; i <= AvFILLp (av); ++i)
2047 PUSHs (AvARRAY (av)[i]);
2048 }
2049
2050 PUTBACK;
2051 }
2052}
2053
2054static void
2055coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2056{
2057 if (!coro->on_destroy)
2058 coro->on_destroy = newAV ();
2059
2060 av_push (coro->on_destroy, cb);
2061}
2062
2063static void
2064slf_destroy_join (pTHX_ struct CoroSLF *frame)
2065{
2066 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2067}
2068
2069static int
2070slf_check_join (pTHX_ struct CoroSLF *frame)
2071{
2072 struct coro *coro = (struct coro *)frame->data;
2073
2074 if (!coro->status)
2075 return 1;
2076
2077 frame->destroy = 0;
2078
2079 coro_push_av (aTHX_ coro->status, GIMME_V);
2080
2081 SvREFCNT_dec ((SV *)coro->hv);
2082
2083 return 0;
2084}
2085
2086static void
2087slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2088{
2089 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2090
2091 if (items > 1)
2092 croak ("join called with too many arguments");
2093
2094 if (coro->status)
2095 frame->prepare = prepare_nop;
2096 else
2097 {
2098 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2099 frame->prepare = prepare_schedule;
2100 }
2101
2102 frame->check = slf_check_join;
2103 frame->destroy = slf_destroy_join;
2104 frame->data = (void *)coro;
2105 SvREFCNT_inc (coro->hv);
2106}
2107
2108static void
1780coro_call_on_destroy (pTHX_ struct coro *coro) 2109coro_call_on_destroy (pTHX_ struct coro *coro)
1781{ 2110{
1782 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2111 AV *od = coro->on_destroy;
1783 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1784 2112
1785 if (on_destroyp) 2113 if (!od)
1786 { 2114 return;
1787 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1788 2115
2116 coro->on_destroy = 0;
2117 sv_2mortal ((SV *)od);
2118
1789 while (AvFILLp (on_destroy) >= 0) 2119 while (AvFILLp (od) >= 0)
2120 {
2121 SV *cb = sv_2mortal (av_pop (od));
2122
2123 /* coro hv's (and only hv's at the moment) are supported as well */
2124 if (SvSTATEhv_p (aTHX_ cb))
2125 api_ready (aTHX_ cb);
2126 else
1790 { 2127 {
1791 dSP; /* don't disturb outer sp */ 2128 dSP; /* don't disturb outer sp */
1792 SV *cb = av_pop (on_destroy);
1793
1794 PUSHMARK (SP); 2129 PUSHMARK (SP);
1795 2130
1796 if (statusp) 2131 if (coro->status)
1797 { 2132 {
1798 int i; 2133 PUTBACK;
1799 AV *status = (AV *)SvRV (*statusp); 2134 coro_push_av (aTHX_ coro->status, G_ARRAY);
1800 EXTEND (SP, AvFILLp (status) + 1); 2135 SPAGAIN;
1801
1802 for (i = 0; i <= AvFILLp (status); ++i)
1803 PUSHs (AvARRAY (status)[i]);
1804 } 2136 }
1805 2137
1806 PUTBACK; 2138 PUTBACK;
1807 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2139 call_sv (cb, G_VOID | G_DISCARD);
1808 } 2140 }
1809 } 2141 }
1810} 2142}
1811 2143
1812static void 2144static void
1813slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2145coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1814{ 2146{
2147 AV *av;
2148
2149 if (coro->status)
2150 {
2151 av = coro->status;
2152 av_clear (av);
2153 }
2154 else
2155 av = coro->status = newAV ();
2156
2157 /* items are actually not so common, so optimise for this case */
2158 if (items)
2159 {
1815 int i; 2160 int i;
1816 HV *hv = (HV *)SvRV (coro_current);
1817 AV *av = newAV ();
1818 2161
1819 av_extend (av, items - 1); 2162 av_extend (av, items - 1);
2163
1820 for (i = 0; i < items; ++i) 2164 for (i = 0; i < items; ++i)
1821 av_push (av, SvREFCNT_inc_NN (arg [i])); 2165 av_push (av, SvREFCNT_inc_NN (arg [i]));
2166 }
2167}
1822 2168
1823 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2169static void
1824 2170slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2171{
1825 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2172 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1826 api_ready (aTHX_ sv_manager); 2173 api_ready (aTHX_ sv_manager);
1827 2174
1828 frame->prepare = prepare_schedule; 2175 frame->prepare = prepare_schedule;
1829 frame->check = slf_check_repeat; 2176 frame->check = slf_check_repeat;
2177
2178 /* as a minor optimisation, we could unwind all stacks here */
2179 /* but that puts extra pressure on pp_slf, and is not worth much */
2180 /*coro_unwind_stacks (aTHX);*/
2181}
2182
2183static void
2184slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2185{
2186 HV *coro_hv = (HV *)SvRV (coro_current);
2187
2188 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2189 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2190}
2191
2192static void
2193slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2194{
2195 HV *coro_hv;
2196 struct coro *coro;
2197
2198 if (items <= 0)
2199 croak ("Coro::cancel called without coro object,");
2200
2201 coro = SvSTATE (arg [0]);
2202 coro_hv = coro->hv;
2203
2204 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2205
2206 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2207 {
2208 /* coro currently busy cancelling something, so just notify it */
2209 coro->slf_frame.data = (void *)coro;
2210
2211 frame->prepare = prepare_nop;
2212 frame->check = slf_check_nop;
2213 }
2214 else if (coro_hv == (HV *)SvRV (coro_current))
2215 {
2216 /* cancelling the current coro is allowed, and equals terminate */
2217 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2218 }
2219 else
2220 {
2221 struct coro *self = SvSTATE_current;
2222
2223 /* otherwise we cancel directly, purely for speed reasons
2224 * unfortunately, this requires some magic trickery, as
2225 * somebody else could cancel us, so we have to fight the cancellation.
2226 * this is ugly, and hopefully fully worth the extra speed.
2227 * besides, I can't get the slow-but-safe version working...
2228 */
2229 slf_frame.data = 0;
2230 self->flags |= CF_NOCANCEL;
2231 coro_state_destroy (aTHX_ coro);
2232 self->flags &= ~CF_NOCANCEL;
2233
2234 if (slf_frame.data)
2235 {
2236 /* while we were busy we have been cancelled, so terminate */
2237 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2238 }
2239 else
2240 {
2241 frame->prepare = prepare_nop;
2242 frame->check = slf_check_nop;
2243 }
2244 }
2245}
2246
2247static int
2248slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2249{
2250 frame->prepare = 0;
2251 coro_unwind_stacks (aTHX);
2252
2253 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2254
2255 return 1;
2256}
2257
2258static int
2259safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2260{
2261 if (coro->cctx)
2262 croak ("coro inside C callback, unable to cancel at this time, caught");
2263
2264 if (coro->flags & CF_NEW)
2265 {
2266 coro_set_status (aTHX_ coro, arg, items);
2267 coro_state_destroy (aTHX_ coro);
2268 }
2269 else
2270 {
2271 if (!coro->slf_frame.prepare)
2272 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2273
2274 slf_destroy (aTHX_ coro);
2275
2276 coro_set_status (aTHX_ coro, arg, items);
2277 coro->slf_frame.prepare = prepare_nop;
2278 coro->slf_frame.check = slf_check_safe_cancel;
2279
2280 api_ready (aTHX_ (SV *)coro->hv);
2281 }
2282
2283 return 1;
1830} 2284}
1831 2285
1832/*****************************************************************************/ 2286/*****************************************************************************/
1833/* async pool handler */ 2287/* async pool handler */
1834 2288
… …
1865slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2319slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1866{ 2320{
1867 HV *hv = (HV *)SvRV (coro_current); 2321 HV *hv = (HV *)SvRV (coro_current);
1868 struct coro *coro = SvSTATE_hv ((SV *)hv); 2322 struct coro *coro = SvSTATE_hv ((SV *)hv);
1869 2323
1870 if (expect_true (coro->saved_deffh)) 2324 if (ecb_expect_true (coro->saved_deffh))
1871 { 2325 {
1872 /* subsequent iteration */ 2326 /* subsequent iteration */
1873 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2327 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1874 coro->saved_deffh = 0; 2328 coro->saved_deffh = 0;
1875 2329
1876 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2330 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1877 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2331 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1878 { 2332 {
1879 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2333 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1880 coro->invoke_av = newAV (); 2334 return;
1881
1882 frame->prepare = prepare_nop;
1883 } 2335 }
1884 else 2336 else
1885 { 2337 {
1886 av_clear (GvAV (PL_defgv)); 2338 av_clear (GvAV (PL_defgv));
1887 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2339 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1912 2364
1913static void 2365static void
1914coro_rouse_callback (pTHX_ CV *cv) 2366coro_rouse_callback (pTHX_ CV *cv)
1915{ 2367{
1916 dXSARGS; 2368 dXSARGS;
1917 SV *data = (SV *)GENSUB_ARG; 2369 SV *data = (SV *)S_GENSUB_ARG;
1918 2370
1919 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2371 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1920 { 2372 {
1921 /* first call, set args */ 2373 /* first call, set args */
2374 SV *coro = SvRV (data);
1922 AV *av = newAV (); 2375 AV *av = newAV ();
1923 SV *coro = SvRV (data);
1924 2376
1925 SvRV_set (data, (SV *)av); 2377 SvRV_set (data, (SV *)av);
1926 api_ready (aTHX_ coro);
1927 SvREFCNT_dec (coro);
1928 2378
1929 /* better take a full copy of the arguments */ 2379 /* better take a full copy of the arguments */
1930 while (items--) 2380 while (items--)
1931 av_store (av, items, newSVsv (ST (items))); 2381 av_store (av, items, newSVsv (ST (items)));
2382
2383 api_ready (aTHX_ coro);
2384 SvREFCNT_dec (coro);
1932 } 2385 }
1933 2386
1934 XSRETURN_EMPTY; 2387 XSRETURN_EMPTY;
1935} 2388}
1936 2389
1937static int 2390static int
1938slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2391slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1939{ 2392{
1940 SV *data = (SV *)frame->data; 2393 SV *data = (SV *)frame->data;
1941 2394
1942 if (CORO_THROW) 2395 if (CORO_THROW)
1943 return 0; 2396 return 0;
1944 2397
1945 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2398 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1946 return 1; 2399 return 1;
… …
1953 2406
1954 EXTEND (SP, AvFILLp (av) + 1); 2407 EXTEND (SP, AvFILLp (av) + 1);
1955 for (i = 0; i <= AvFILLp (av); ++i) 2408 for (i = 0; i <= AvFILLp (av); ++i)
1956 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2409 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1957 2410
1958 /* we have stolen the elements, so ste length to zero and free */ 2411 /* we have stolen the elements, so set length to zero and free */
1959 AvFILLp (av) = -1; 2412 AvFILLp (av) = -1;
1960 av_undef (av); 2413 av_undef (av);
1961 2414
1962 PUTBACK; 2415 PUTBACK;
1963 } 2416 }
… …
1982 cb = sv_2mortal (coro->rouse_cb); 2435 cb = sv_2mortal (coro->rouse_cb);
1983 coro->rouse_cb = 0; 2436 coro->rouse_cb = 0;
1984 } 2437 }
1985 2438
1986 if (!SvROK (cb) 2439 if (!SvROK (cb)
1987 || SvTYPE (SvRV (cb)) != SVt_PVCV 2440 || SvTYPE (SvRV (cb)) != SVt_PVCV
1988 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2441 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1989 croak ("Coro::rouse_wait called with illegal callback argument,"); 2442 croak ("Coro::rouse_wait called with illegal callback argument,");
1990 2443
1991 { 2444 {
1992 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2445 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1993 SV *data = (SV *)GENSUB_ARG; 2446 SV *data = (SV *)S_GENSUB_ARG;
1994 2447
1995 frame->data = (void *)data; 2448 frame->data = (void *)data;
1996 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2449 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1997 frame->check = slf_check_rouse_wait; 2450 frame->check = slf_check_rouse_wait;
1998 } 2451 }
… …
2002coro_new_rouse_cb (pTHX) 2455coro_new_rouse_cb (pTHX)
2003{ 2456{
2004 HV *hv = (HV *)SvRV (coro_current); 2457 HV *hv = (HV *)SvRV (coro_current);
2005 struct coro *coro = SvSTATE_hv (hv); 2458 struct coro *coro = SvSTATE_hv (hv);
2006 SV *data = newRV_inc ((SV *)hv); 2459 SV *data = newRV_inc ((SV *)hv);
2007 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2460 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2008 2461
2009 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2462 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2010 SvREFCNT_dec (data); /* magicext increases the refcount */ 2463 SvREFCNT_dec (data); /* magicext increases the refcount */
2011 2464
2012 SvREFCNT_dec (coro->rouse_cb); 2465 SvREFCNT_dec (coro->rouse_cb);
… …
2109static void 2562static void
2110slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2563slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2111{ 2564{
2112 frame->prepare = prepare_cede_notself; 2565 frame->prepare = prepare_cede_notself;
2113 frame->check = slf_check_nop; 2566 frame->check = slf_check_nop;
2567}
2568
2569/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2570static void
2571slf_destroy (pTHX_ struct coro *coro)
2572{
2573 /* this callback is reserved for slf functions needing to do cleanup */
2574 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2575 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2576
2577 /*
2578 * The on_destroy above most likely is from an SLF call.
2579 * Since by definition the SLF call will not finish when we destroy
2580 * the coro, we will have to force-finish it here, otherwise
2581 * cleanup functions cannot call SLF functions.
2582 */
2583 coro->slf_frame.prepare = 0;
2114} 2584}
2115 2585
2116/* 2586/*
2117 * these not obviously related functions are all rolled into one 2587 * these not obviously related functions are all rolled into one
2118 * function to increase chances that they all will call transfer with the same 2588 * function to increase chances that they all will call transfer with the same
… …
2125 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2595 I32 checkmark; /* mark SP to see how many elements check has pushed */
2126 2596
2127 /* set up the slf frame, unless it has already been set-up */ 2597 /* set up the slf frame, unless it has already been set-up */
2128 /* the latter happens when a new coro has been started */ 2598 /* the latter happens when a new coro has been started */
2129 /* or when a new cctx was attached to an existing coroutine */ 2599 /* or when a new cctx was attached to an existing coroutine */
2130 if (expect_true (!slf_frame.prepare)) 2600 if (ecb_expect_true (!slf_frame.prepare))
2131 { 2601 {
2132 /* first iteration */ 2602 /* first iteration */
2133 dSP; 2603 dSP;
2134 SV **arg = PL_stack_base + TOPMARK + 1; 2604 SV **arg = PL_stack_base + TOPMARK + 1;
2135 int items = SP - arg; /* args without function object */ 2605 int items = SP - arg; /* args without function object */
… …
2176 while (slf_frame.check (aTHX_ &slf_frame)); 2646 while (slf_frame.check (aTHX_ &slf_frame));
2177 2647
2178 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2648 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2179 2649
2180 /* exception handling */ 2650 /* exception handling */
2181 if (expect_false (CORO_THROW)) 2651 if (ecb_expect_false (CORO_THROW))
2182 { 2652 {
2183 SV *exception = sv_2mortal (CORO_THROW); 2653 SV *exception = sv_2mortal (CORO_THROW);
2184 2654
2185 CORO_THROW = 0; 2655 CORO_THROW = 0;
2186 sv_setsv (ERRSV, exception); 2656 sv_setsv (ERRSV, exception);
2187 croak (0); 2657 croak (0);
2188 } 2658 }
2189 2659
2190 /* return value handling - mostly like entersub */ 2660 /* return value handling - mostly like entersub */
2191 /* make sure we put something on the stack in scalar context */ 2661 /* make sure we put something on the stack in scalar context */
2192 if (GIMME_V == G_SCALAR) 2662 if (GIMME_V == G_SCALAR
2663 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2193 { 2664 {
2194 dSP; 2665 dSP;
2195 SV **bot = PL_stack_base + checkmark; 2666 SV **bot = PL_stack_base + checkmark;
2196 2667
2197 if (sp == bot) /* too few, push undef */ 2668 if (sp == bot) /* too few, push undef */
2198 bot [1] = &PL_sv_undef; 2669 bot [1] = &PL_sv_undef;
2199 else if (sp != bot + 1) /* too many, take last one */ 2670 else /* too many, take last one */
2200 bot [1] = *sp; 2671 bot [1] = *sp;
2201 2672
2202 SP = bot + 1; 2673 SP = bot + 1;
2203 2674
2204 PUTBACK; 2675 PUTBACK;
… …
2237 if (PL_op->op_flags & OPf_STACKED) 2708 if (PL_op->op_flags & OPf_STACKED)
2238 { 2709 {
2239 if (items > slf_arga) 2710 if (items > slf_arga)
2240 { 2711 {
2241 slf_arga = items; 2712 slf_arga = items;
2242 free (slf_argv); 2713 Safefree (slf_argv);
2243 slf_argv = malloc (slf_arga * sizeof (SV *)); 2714 New (0, slf_argv, slf_arga, SV *);
2244 } 2715 }
2245 2716
2246 slf_argc = items; 2717 slf_argc = items;
2247 2718
2248 for (i = 0; i < items; ++i) 2719 for (i = 0; i < items; ++i)
… …
2253 2724
2254 PL_op->op_ppaddr = pp_slf; 2725 PL_op->op_ppaddr = pp_slf;
2255 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2726 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2256 2727
2257 PL_op = (OP *)&slf_restore; 2728 PL_op = (OP *)&slf_restore;
2729}
2730
2731/*****************************************************************************/
2732/* dynamic wind */
2733
2734static void
2735on_enterleave_call (pTHX_ SV *cb)
2736{
2737 dSP;
2738
2739 PUSHSTACK;
2740
2741 PUSHMARK (SP);
2742 PUTBACK;
2743 call_sv (cb, G_VOID | G_DISCARD);
2744 SPAGAIN;
2745
2746 POPSTACK;
2747}
2748
2749static SV *
2750coro_avp_pop_and_free (pTHX_ AV **avp)
2751{
2752 AV *av = *avp;
2753 SV *res = av_pop (av);
2754
2755 if (AvFILLp (av) < 0)
2756 {
2757 *avp = 0;
2758 SvREFCNT_dec (av);
2759 }
2760
2761 return res;
2762}
2763
2764static void
2765coro_pop_on_enter (pTHX_ void *coro)
2766{
2767 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2768 SvREFCNT_dec (cb);
2769}
2770
2771static void
2772coro_pop_on_leave (pTHX_ void *coro)
2773{
2774 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2775 on_enterleave_call (aTHX_ sv_2mortal (cb));
2258} 2776}
2259 2777
2260/*****************************************************************************/ 2778/*****************************************************************************/
2261/* PerlIO::cede */ 2779/* PerlIO::cede */
2262 2780
… …
2264{ 2782{
2265 PerlIOBuf base; 2783 PerlIOBuf base;
2266 NV next, every; 2784 NV next, every;
2267} PerlIOCede; 2785} PerlIOCede;
2268 2786
2269static IV 2787static IV ecb_cold
2270PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2788PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2271{ 2789{
2272 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2790 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2273 2791
2274 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2792 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2275 self->next = nvtime () + self->every; 2793 self->next = nvtime () + self->every;
2276 2794
2277 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2795 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2278} 2796}
2279 2797
2280static SV * 2798static SV * ecb_cold
2281PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2799PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2282{ 2800{
2283 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2801 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2284 2802
2285 return newSVnv (self->every); 2803 return newSVnv (self->every);
… …
2336/* Coro::Semaphore & Coro::Signal */ 2854/* Coro::Semaphore & Coro::Signal */
2337 2855
2338static SV * 2856static SV *
2339coro_waitarray_new (pTHX_ int count) 2857coro_waitarray_new (pTHX_ int count)
2340{ 2858{
2341 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2859 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2342 AV *av = newAV (); 2860 AV *av = newAV ();
2343 SV **ary; 2861 SV **ary;
2344 2862
2345 /* unfortunately, building manually saves memory */ 2863 /* unfortunately, building manually saves memory */
2346 Newx (ary, 2, SV *); 2864 Newx (ary, 2, SV *);
2347 AvALLOC (av) = ary; 2865 AvALLOC (av) = ary;
2866#if PERL_VERSION_ATLEAST (5,10,0)
2348 /*AvARRAY (av) = ary;*/ 2867 AvARRAY (av) = ary;
2868#else
2349 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2869 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2870 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2871 SvPVX ((SV *)av) = (char *)ary;
2872#endif
2350 AvMAX (av) = 1; 2873 AvMAX (av) = 1;
2351 AvFILLp (av) = 0; 2874 AvFILLp (av) = 0;
2352 ary [0] = newSViv (count); 2875 ary [0] = newSViv (count);
2353 2876
2354 return newRV_noinc ((SV *)av); 2877 return newRV_noinc ((SV *)av);
… …
2392 SvREFCNT_dec (cb); 2915 SvREFCNT_dec (cb);
2393 } 2916 }
2394} 2917}
2395 2918
2396static void 2919static void
2397coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2920coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2398{ 2921{
2399 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2922 /* call $sem->adjust (0) to possibly wake up some other waiters */
2400 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2923 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2401} 2924}
2402 2925
2403static int 2926static int
2404slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2927slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2405{ 2928{
2406 AV *av = (AV *)frame->data; 2929 AV *av = (AV *)frame->data;
2407 SV *count_sv = AvARRAY (av)[0]; 2930 SV *count_sv = AvARRAY (av)[0];
2931 SV *coro_hv = SvRV (coro_current);
2408 2932
2409 /* if we are about to throw, don't actually acquire the lock, just throw */ 2933 /* if we are about to throw, don't actually acquire the lock, just throw */
2410 if (CORO_THROW) 2934 if (CORO_THROW)
2411 return 0; 2935 return 0;
2412 else if (SvIVX (count_sv) > 0) 2936 else if (SvIVX (count_sv) > 0)
2413 { 2937 {
2414 SvSTATE_current->on_destroy = 0; 2938 frame->destroy = 0;
2415 2939
2416 if (acquire) 2940 if (acquire)
2417 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2941 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2418 else 2942 else
2419 coro_semaphore_adjust (aTHX_ av, 0); 2943 coro_semaphore_adjust (aTHX_ av, 0);
… …
2424 { 2948 {
2425 int i; 2949 int i;
2426 /* if we were woken up but can't down, we look through the whole */ 2950 /* if we were woken up but can't down, we look through the whole */
2427 /* waiters list and only add us if we aren't in there already */ 2951 /* waiters list and only add us if we aren't in there already */
2428 /* this avoids some degenerate memory usage cases */ 2952 /* this avoids some degenerate memory usage cases */
2429 2953 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2430 for (i = 1; i <= AvFILLp (av); ++i)
2431 if (AvARRAY (av)[i] == SvRV (coro_current)) 2954 if (AvARRAY (av)[i] == coro_hv)
2432 return 1; 2955 return 1;
2433 2956
2434 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2957 av_push (av, SvREFCNT_inc (coro_hv));
2435 return 1; 2958 return 1;
2436 } 2959 }
2437} 2960}
2438 2961
2439static int 2962static int
… …
2462 { 2985 {
2463 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2986 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2464 2987
2465 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2988 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2466 frame->prepare = prepare_schedule; 2989 frame->prepare = prepare_schedule;
2467
2468 /* to avoid race conditions when a woken-up coro gets terminated */ 2990 /* to avoid race conditions when a woken-up coro gets terminated */
2469 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2991 /* we arrange for a temporary on_destroy that calls adjust (0) */
2470 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2992 frame->destroy = coro_semaphore_destroy;
2471 } 2993 }
2472} 2994}
2473 2995
2474static void 2996static void
2475slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2997slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2483{ 3005{
2484 if (items >= 2) 3006 if (items >= 2)
2485 { 3007 {
2486 /* callback form */ 3008 /* callback form */
2487 AV *av = (AV *)SvRV (arg [0]); 3009 AV *av = (AV *)SvRV (arg [0]);
2488 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3010 SV *cb_cv = s_get_cv_croak (arg [1]);
2489 3011
2490 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3012 av_push (av, SvREFCNT_inc_NN (cb_cv));
2491 3013
2492 if (SvIVX (AvARRAY (av)[0]) > 0) 3014 if (SvIVX (AvARRAY (av)[0]) > 0)
2493 coro_semaphore_adjust (aTHX_ av, 0); 3015 coro_semaphore_adjust (aTHX_ av, 0);
2494 3016
2495 frame->prepare = prepare_nop; 3017 frame->prepare = prepare_nop;
… …
2519 AvARRAY (av)[0] = AvARRAY (av)[1]; 3041 AvARRAY (av)[0] = AvARRAY (av)[1];
2520 AvARRAY (av)[1] = cb; 3042 AvARRAY (av)[1] = cb;
2521 3043
2522 cb = av_shift (av); 3044 cb = av_shift (av);
2523 3045
3046 if (SvTYPE (cb) == SVt_PVCV)
3047 {
3048 dSP;
3049 PUSHMARK (SP);
3050 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3051 PUTBACK;
3052 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3053 }
3054 else
3055 {
2524 api_ready (aTHX_ cb); 3056 api_ready (aTHX_ cb);
2525 sv_setiv (cb, 0); /* signal waiter */ 3057 sv_setiv (cb, 0); /* signal waiter */
3058 }
3059
2526 SvREFCNT_dec (cb); 3060 SvREFCNT_dec (cb);
2527 3061
2528 --count; 3062 --count;
2529 } 3063 }
2530} 3064}
… …
2539static void 3073static void
2540slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3074slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2541{ 3075{
2542 AV *av = (AV *)SvRV (arg [0]); 3076 AV *av = (AV *)SvRV (arg [0]);
2543 3077
3078 if (items >= 2)
3079 {
3080 SV *cb_cv = s_get_cv_croak (arg [1]);
3081 av_push (av, SvREFCNT_inc_NN (cb_cv));
3082
2544 if (SvIVX (AvARRAY (av)[0])) 3083 if (SvIVX (AvARRAY (av)[0]))
3084 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3085
3086 frame->prepare = prepare_nop;
3087 frame->check = slf_check_nop;
3088 }
3089 else if (SvIVX (AvARRAY (av)[0]))
2545 { 3090 {
2546 SvIVX (AvARRAY (av)[0]) = 0; 3091 SvIVX (AvARRAY (av)[0]) = 0;
2547 frame->prepare = prepare_nop; 3092 frame->prepare = prepare_nop;
2548 frame->check = slf_check_nop; 3093 frame->check = slf_check_nop;
2549 } 3094 }
2550 else 3095 else
2551 { 3096 {
2552 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3097 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2553 3098
2554 av_push (av, waiter); 3099 av_push (av, waiter);
2555 3100
2556 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3101 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2557 frame->prepare = prepare_schedule; 3102 frame->prepare = prepare_schedule;
… …
2575 3120
2576static void 3121static void
2577coro_aio_callback (pTHX_ CV *cv) 3122coro_aio_callback (pTHX_ CV *cv)
2578{ 3123{
2579 dXSARGS; 3124 dXSARGS;
2580 AV *state = (AV *)GENSUB_ARG; 3125 AV *state = (AV *)S_GENSUB_ARG;
2581 SV *coro = av_pop (state); 3126 SV *coro = av_pop (state);
2582 SV *data_sv = newSV (sizeof (struct io_state)); 3127 SV *data_sv = newSV (sizeof (struct io_state));
2583 3128
2584 av_extend (state, items - 1); 3129 av_extend (state, items - 1);
2585 3130
… …
2621 /* it quickly returns */ 3166 /* it quickly returns */
2622 if (CORO_THROW) 3167 if (CORO_THROW)
2623 return 0; 3168 return 0;
2624 3169
2625 /* one element that is an RV? repeat! */ 3170 /* one element that is an RV? repeat! */
2626 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3171 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2627 return 1; 3172 return 1;
2628 3173
2629 /* restore status */ 3174 /* restore status */
2630 { 3175 {
2631 SV *data_sv = av_pop (state); 3176 SV *data_sv = av_pop (state);
… …
2670 dSP; 3215 dSP;
2671 3216
2672 static SV *prio_cv; 3217 static SV *prio_cv;
2673 static SV *prio_sv; 3218 static SV *prio_sv;
2674 3219
2675 if (expect_false (!prio_cv)) 3220 if (ecb_expect_false (!prio_cv))
2676 { 3221 {
2677 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3222 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2678 prio_sv = newSViv (0); 3223 prio_sv = newSViv (0);
2679 } 3224 }
2680 3225
… …
2699 3244
2700 for (i = 0; i < items; ++i) 3245 for (i = 0; i < items; ++i)
2701 PUSHs (arg [i]); 3246 PUSHs (arg [i]);
2702 3247
2703 /* now push the callback closure */ 3248 /* now push the callback closure */
2704 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3249 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2705 3250
2706 /* now call the AIO function - we assume our request is uncancelable */ 3251 /* now call the AIO function - we assume our request is uncancelable */
2707 PUTBACK; 3252 PUTBACK;
2708 call_sv ((SV *)req, G_VOID | G_DISCARD); 3253 call_sv ((SV *)req, G_VOID | G_DISCARD);
2709 } 3254 }
2710 3255
2711 /* now that the requets is going, we loop toll we have a result */ 3256 /* now that the request is going, we loop till we have a result */
2712 frame->data = (void *)state; 3257 frame->data = (void *)state;
2713 frame->prepare = prepare_schedule; 3258 frame->prepare = prepare_schedule;
2714 frame->check = slf_check_aio_req; 3259 frame->check = slf_check_aio_req;
2715} 3260}
2716 3261
… …
2723 3268
2724 XSRETURN_EMPTY; 3269 XSRETURN_EMPTY;
2725} 3270}
2726 3271
2727/*****************************************************************************/ 3272/*****************************************************************************/
3273
3274#if CORO_CLONE
3275# include "clone.c"
3276#endif
3277
3278/*****************************************************************************/
3279
3280static SV *
3281coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3282{
3283 SV *coro_sv;
3284 struct coro *coro;
3285 MAGIC *mg;
3286 HV *hv;
3287 SV *cb;
3288 int i;
3289
3290 if (argc > 0)
3291 {
3292 cb = s_get_cv_croak (argv [0]);
3293
3294 if (!is_coro)
3295 {
3296 if (CvISXSUB (cb))
3297 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3298
3299 if (!CvROOT (cb))
3300 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3301 }
3302 }
3303
3304 Newz (0, coro, 1, struct coro);
3305 coro->args = newAV ();
3306 coro->flags = CF_NEW;
3307
3308 if (coro_first) coro_first->prev = coro;
3309 coro->next = coro_first;
3310 coro_first = coro;
3311
3312 coro->hv = hv = newHV ();
3313 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3314 mg->mg_flags |= MGf_DUP;
3315 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3316
3317 if (argc > 0)
3318 {
3319 av_extend (coro->args, argc + is_coro - 1);
3320
3321 if (is_coro)
3322 {
3323 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3324 cb = (SV *)cv_coro_run;
3325 }
3326
3327 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3328
3329 for (i = 1; i < argc; i++)
3330 av_push (coro->args, newSVsv (argv [i]));
3331 }
3332
3333 return coro_sv;
3334}
3335
3336#ifndef __cplusplus
3337ecb_cold XS(boot_Coro__State);
3338#endif
3339
3340#if CORO_JIT
3341
3342static void ecb_noinline ecb_cold
3343pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3344{
3345 dSP;
3346 AV *av = newAV ();
3347
3348 av_store (av, 3, newSVuv (d));
3349 av_store (av, 2, newSVuv (c));
3350 av_store (av, 1, newSVuv (b));
3351 av_store (av, 0, newSVuv (a));
3352
3353 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3354
3355 PUTBACK;
3356}
3357
3358static void ecb_noinline ecb_cold
3359jit_init (pTHX)
3360{
3361 dSP;
3362 SV *load, *save;
3363 char *map_base;
3364 char *load_ptr, *save_ptr;
3365 STRLEN load_len, save_len, map_len;
3366 int count;
3367
3368 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3369
3370 PUSHMARK (SP);
3371 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3372 #include "state.h"
3373 count = call_pv ("Coro::State::_jit", G_ARRAY);
3374 SPAGAIN;
3375
3376 save = POPs; save_ptr = SvPVbyte (save, save_len);
3377 load = POPs; load_ptr = SvPVbyte (load, load_len);
3378
3379 map_len = load_len + save_len + 16;
3380
3381 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3382
3383 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3384
3385 load_perl_slots = (load_save_perl_slots_type)map_base;
3386 memcpy (map_base, load_ptr, load_len);
3387
3388 map_base += (load_len + 15) & ~15;
3389
3390 save_perl_slots = (load_save_perl_slots_type)map_base;
3391 memcpy (map_base, save_ptr, save_len);
3392
3393 /* we are good citizens and try to make the page read-only, so the evil evil */
3394 /* hackers might have it a bit more difficult */
3395 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3396
3397 PUTBACK;
3398 eval_pv ("undef &Coro::State::_jit", 1);
3399}
3400
3401#endif
2728 3402
2729MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3403MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2730 3404
2731PROTOTYPES: DISABLE 3405PROTOTYPES: DISABLE
2732 3406
… …
2735#ifdef USE_ITHREADS 3409#ifdef USE_ITHREADS
2736# if CORO_PTHREAD 3410# if CORO_PTHREAD
2737 coro_thx = PERL_GET_CONTEXT; 3411 coro_thx = PERL_GET_CONTEXT;
2738# endif 3412# endif
2739#endif 3413#endif
2740 BOOT_PAGESIZE; 3414 /* perl defines these to check for existance first, but why it doesn't */
3415 /* just create them one at init time is not clear to me, except for */
3416 /* programs trying to delete them, but... */
3417 /* anyway, we declare this as invalid and make sure they are initialised here */
3418 DEFSV;
3419 ERRSV;
3420
3421 cctx_current = cctx_new_empty ();
2741 3422
2742 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3423 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2743 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3424 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2744 3425
2745 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3426 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
… …
2783 coroapi.prepare_nop = prepare_nop; 3464 coroapi.prepare_nop = prepare_nop;
2784 coroapi.prepare_schedule = prepare_schedule; 3465 coroapi.prepare_schedule = prepare_schedule;
2785 coroapi.prepare_cede = prepare_cede; 3466 coroapi.prepare_cede = prepare_cede;
2786 coroapi.prepare_cede_notself = prepare_cede_notself; 3467 coroapi.prepare_cede_notself = prepare_cede_notself;
2787 3468
2788 { 3469 time_init (aTHX);
2789 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2790 3470
2791 if (!svp) croak ("Time::HiRes is required");
2792 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2793
2794 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2795 }
2796
2797 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3471 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3472#if CORO_JIT
3473 PUTBACK;
3474 jit_init (aTHX);
3475 SPAGAIN;
3476#endif
2798} 3477}
2799 3478
2800SV * 3479SV *
2801new (char *klass, ...) 3480new (SV *klass, ...)
2802 ALIAS: 3481 ALIAS:
2803 Coro::new = 1 3482 Coro::new = 1
2804 CODE: 3483 CODE:
2805{ 3484 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2806 struct coro *coro; 3485 OUTPUT:
2807 MAGIC *mg;
2808 HV *hv;
2809 CV *cb;
2810 int i;
2811
2812 if (items > 1)
2813 {
2814 cb = coro_sv_2cv (aTHX_ ST (1));
2815
2816 if (!ix)
2817 {
2818 if (CvISXSUB (cb))
2819 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2820
2821 if (!CvROOT (cb))
2822 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2823 }
2824 }
2825
2826 Newz (0, coro, 1, struct coro);
2827 coro->args = newAV ();
2828 coro->flags = CF_NEW;
2829
2830 if (coro_first) coro_first->prev = coro;
2831 coro->next = coro_first;
2832 coro_first = coro;
2833
2834 coro->hv = hv = newHV ();
2835 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2836 mg->mg_flags |= MGf_DUP;
2837 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2838
2839 if (items > 1)
2840 {
2841 av_extend (coro->args, items - 1 + ix - 1);
2842
2843 if (ix)
2844 {
2845 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2846 cb = cv_coro_run;
2847 }
2848
2849 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2850
2851 for (i = 2; i < items; i++)
2852 av_push (coro->args, newSVsv (ST (i)));
2853 }
2854}
2855 OUTPUT:
2856 RETVAL 3486 RETVAL
2857 3487
2858void 3488void
2859transfer (...) 3489transfer (...)
2860 PROTOTYPE: $$ 3490 PROTOTYPE: $$
2861 CODE: 3491 CODE:
2862 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3492 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2863 3493
2864bool 3494SV *
2865_destroy (SV *coro_sv) 3495clone (Coro::State coro)
2866 CODE: 3496 CODE:
2867 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 3497{
3498#if CORO_CLONE
3499 struct coro *ncoro = coro_clone (aTHX_ coro);
3500 MAGIC *mg;
3501 /* TODO: too much duplication */
3502 ncoro->hv = newHV ();
3503 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3504 mg->mg_flags |= MGf_DUP;
3505 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3506#else
3507 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3508#endif
3509}
2868 OUTPUT: 3510 OUTPUT:
2869 RETVAL 3511 RETVAL
2870
2871void
2872_exit (int code)
2873 PROTOTYPE: $
2874 CODE:
2875 _exit (code);
2876 3512
2877int 3513int
2878cctx_stacksize (int new_stacksize = 0) 3514cctx_stacksize (int new_stacksize = 0)
2879 PROTOTYPE: ;$ 3515 PROTOTYPE: ;$
2880 CODE: 3516 CODE:
… …
2916void 3552void
2917list () 3553list ()
2918 PROTOTYPE: 3554 PROTOTYPE:
2919 PPCODE: 3555 PPCODE:
2920{ 3556{
2921 struct coro *coro; 3557 struct coro *coro;
2922 for (coro = coro_first; coro; coro = coro->next) 3558 for (coro = coro_first; coro; coro = coro->next)
2923 if (coro->hv) 3559 if (coro->hv)
2924 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3560 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2925} 3561}
2926 3562
… …
2930 eval = 1 3566 eval = 1
2931 CODE: 3567 CODE:
2932{ 3568{
2933 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3569 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2934 { 3570 {
2935 struct coro temp; 3571 struct coro *current = SvSTATE_current;
3572 struct CoroSLF slf_save;
2936 3573
2937 if (!(coro->flags & CF_RUNNING)) 3574 if (current != coro)
2938 { 3575 {
2939 PUTBACK; 3576 PUTBACK;
2940 save_perl (aTHX_ &temp); 3577 save_perl (aTHX_ current);
2941 load_perl (aTHX_ coro); 3578 load_perl (aTHX_ coro);
3579 /* the coro is most likely in an active SLF call.
3580 * while not strictly required (the code we execute is
3581 * not allowed to call any SLF functions), it's cleaner
3582 * to reinitialise the slf_frame and restore it later.
3583 * This might one day allow us to actually do SLF calls
3584 * from code executed here.
3585 */
3586 slf_save = slf_frame;
3587 slf_frame.prepare = 0;
3588 SPAGAIN;
2942 } 3589 }
2943 3590
2944 {
2945 dSP;
2946 ENTER;
2947 SAVETMPS;
2948 PUTBACK;
2949 PUSHSTACK; 3591 PUSHSTACK;
3592
2950 PUSHMARK (SP); 3593 PUSHMARK (SP);
3594 PUTBACK;
2951 3595
2952 if (ix) 3596 if (ix)
2953 eval_sv (coderef, 0); 3597 eval_sv (coderef, 0);
2954 else 3598 else
2955 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3599 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2956 3600
2957 POPSTACK; 3601 POPSTACK;
2958 SPAGAIN; 3602 SPAGAIN;
2959 FREETMPS;
2960 LEAVE;
2961 PUTBACK;
2962 }
2963 3603
2964 if (!(coro->flags & CF_RUNNING)) 3604 if (current != coro)
2965 { 3605 {
3606 PUTBACK;
3607 slf_frame = slf_save;
2966 save_perl (aTHX_ coro); 3608 save_perl (aTHX_ coro);
2967 load_perl (aTHX_ &temp); 3609 load_perl (aTHX_ current);
2968 SPAGAIN; 3610 SPAGAIN;
2969 } 3611 }
2970 } 3612 }
2971} 3613}
2972 3614
… …
2975 PROTOTYPE: $ 3617 PROTOTYPE: $
2976 ALIAS: 3618 ALIAS:
2977 is_ready = CF_READY 3619 is_ready = CF_READY
2978 is_running = CF_RUNNING 3620 is_running = CF_RUNNING
2979 is_new = CF_NEW 3621 is_new = CF_NEW
2980 is_destroyed = CF_DESTROYED 3622 is_destroyed = CF_ZOMBIE
3623 is_zombie = CF_ZOMBIE
3624 is_suspended = CF_SUSPENDED
2981 CODE: 3625 CODE:
2982 RETVAL = boolSV (coro->flags & ix); 3626 RETVAL = boolSV (coro->flags & ix);
2983 OUTPUT: 3627 OUTPUT:
2984 RETVAL 3628 RETVAL
2985 3629
2986void 3630void
2987throw (Coro::State self, SV *throw = &PL_sv_undef) 3631throw (SV *self, SV *exception = &PL_sv_undef)
2988 PROTOTYPE: $;$ 3632 PROTOTYPE: $;$
2989 CODE: 3633 CODE:
2990{ 3634{
3635 struct coro *coro = SvSTATE (self);
2991 struct coro *current = SvSTATE_current; 3636 struct coro *current = SvSTATE_current;
2992 SV **throwp = self == current ? &CORO_THROW : &self->except; 3637 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2993 SvREFCNT_dec (*throwp); 3638 SvREFCNT_dec (*exceptionp);
2994 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3639 SvGETMAGIC (exception);
3640 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3641
3642 api_ready (aTHX_ self);
2995} 3643}
2996 3644
2997void 3645void
2998api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3646api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2999 PROTOTYPE: $;$ 3647 PROTOTYPE: $;$
… …
3001 3649
3002SV * 3650SV *
3003has_cctx (Coro::State coro) 3651has_cctx (Coro::State coro)
3004 PROTOTYPE: $ 3652 PROTOTYPE: $
3005 CODE: 3653 CODE:
3006 RETVAL = boolSV (!!coro->cctx); 3654 /* maybe manage the running flag differently */
3655 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3007 OUTPUT: 3656 OUTPUT:
3008 RETVAL 3657 RETVAL
3009 3658
3010int 3659int
3011is_traced (Coro::State coro) 3660is_traced (Coro::State coro)
… …
3031 3680
3032void 3681void
3033force_cctx () 3682force_cctx ()
3034 PROTOTYPE: 3683 PROTOTYPE:
3035 CODE: 3684 CODE:
3036 SvSTATE_current->cctx->idle_sp = 0; 3685 cctx_current->idle_sp = 0;
3037 3686
3038void 3687void
3039swap_defsv (Coro::State self) 3688swap_defsv (Coro::State self)
3040 PROTOTYPE: $ 3689 PROTOTYPE: $
3041 ALIAS: 3690 ALIAS:
… …
3049 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3698 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3050 3699
3051 SV *tmp = *src; *src = *dst; *dst = tmp; 3700 SV *tmp = *src; *src = *dst; *dst = tmp;
3052 } 3701 }
3053 3702
3703void
3704cancel (Coro::State self)
3705 CODE:
3706 coro_state_destroy (aTHX_ self);
3707
3708SV *
3709enable_times (int enabled = enable_times)
3710 CODE:
3711{
3712 RETVAL = boolSV (enable_times);
3713
3714 if (enabled != enable_times)
3715 {
3716 enable_times = enabled;
3717
3718 coro_times_update ();
3719 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3720 }
3721}
3722 OUTPUT:
3723 RETVAL
3724
3725void
3726times (Coro::State self)
3727 PPCODE:
3728{
3729 struct coro *current = SvSTATE (coro_current);
3730
3731 if (ecb_expect_false (current == self))
3732 {
3733 coro_times_update ();
3734 coro_times_add (SvSTATE (coro_current));
3735 }
3736
3737 EXTEND (SP, 2);
3738 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3739 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3740
3741 if (ecb_expect_false (current == self))
3742 coro_times_sub (SvSTATE (coro_current));
3743}
3744
3745void
3746swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3747 CODE:
3748{
3749 struct coro *current = SvSTATE_current;
3750
3751 if (current == coro)
3752 SWAP_SVS (current);
3753
3754 if (!coro->swap_sv)
3755 coro->swap_sv = newAV ();
3756
3757 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3758 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3759
3760 if (current == coro)
3761 SWAP_SVS (current);
3762}
3763
3054 3764
3055MODULE = Coro::State PACKAGE = Coro 3765MODULE = Coro::State PACKAGE = Coro
3056 3766
3057BOOT: 3767BOOT:
3058{ 3768{
3059 int i;
3060
3061 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3769 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3062 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3770 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3063 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3771 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3064 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3065 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3772 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3066 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3773 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3067 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3774 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3068 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3775 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3776 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3069 3777
3070 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3778 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3071 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3779 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3072 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3780 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3073 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3781 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3074 3782
3075 coro_stash = gv_stashpv ("Coro", TRUE); 3783 coro_stash = gv_stashpv ("Coro", TRUE);
3076 3784
3077 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3785 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3078 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3786 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3079 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3787 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3080 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3788 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3081 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3789 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3082 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3790 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3083
3084 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3085 coro_ready[i] = newAV ();
3086 3791
3087 { 3792 {
3088 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3793 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3089 3794
3090 coroapi.schedule = api_schedule; 3795 coroapi.schedule = api_schedule;
… …
3100 sv_setiv (sv, (IV)&coroapi); 3805 sv_setiv (sv, (IV)&coroapi);
3101 SvREADONLY_on (sv); 3806 SvREADONLY_on (sv);
3102 } 3807 }
3103} 3808}
3104 3809
3810SV *
3811async (...)
3812 PROTOTYPE: &@
3813 CODE:
3814 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3815 api_ready (aTHX_ RETVAL);
3816 OUTPUT:
3817 RETVAL
3818
3819void
3820_destroy (Coro::State coro)
3821 CODE:
3822 /* used by the manager thread */
3823 coro_state_destroy (aTHX_ coro);
3824
3825void
3826on_destroy (Coro::State coro, SV *cb)
3827 CODE:
3828 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3829
3830void
3831join (...)
3832 CODE:
3833 CORO_EXECUTE_SLF_XS (slf_init_join);
3834
3105void 3835void
3106terminate (...) 3836terminate (...)
3107 CODE: 3837 CODE:
3108 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3838 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3109 3839
3110void 3840void
3841cancel (...)
3842 CODE:
3843 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3844
3845int
3846safe_cancel (Coro::State self, ...)
3847 C_ARGS: aTHX_ self, &ST (1), items - 1
3848
3849void
3111schedule (...) 3850schedule (...)
3112 CODE: 3851 CODE:
3113 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3852 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3114 3853
3115void 3854void
… …
3129 3868
3130void 3869void
3131cede_notself (...) 3870cede_notself (...)
3132 CODE: 3871 CODE:
3133 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3872 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3134
3135void
3136_cancel (Coro::State self)
3137 CODE:
3138 coro_state_destroy (aTHX_ self);
3139 coro_call_on_destroy (aTHX_ self);
3140 3873
3141void 3874void
3142_set_current (SV *current) 3875_set_current (SV *current)
3143 PROTOTYPE: $ 3876 PROTOTYPE: $
3144 CODE: 3877 CODE:
… …
3148void 3881void
3149_set_readyhook (SV *hook) 3882_set_readyhook (SV *hook)
3150 PROTOTYPE: $ 3883 PROTOTYPE: $
3151 CODE: 3884 CODE:
3152 SvREFCNT_dec (coro_readyhook); 3885 SvREFCNT_dec (coro_readyhook);
3886 SvGETMAGIC (hook);
3887 if (SvOK (hook))
3888 {
3153 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3889 coro_readyhook = newSVsv (hook);
3890 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3891 }
3892 else
3893 {
3894 coro_readyhook = 0;
3895 CORO_READYHOOK = 0;
3896 }
3154 3897
3155int 3898int
3156prio (Coro::State coro, int newprio = 0) 3899prio (Coro::State coro, int newprio = 0)
3157 PROTOTYPE: $;$ 3900 PROTOTYPE: $;$
3158 ALIAS: 3901 ALIAS:
… …
3164 if (items > 1) 3907 if (items > 1)
3165 { 3908 {
3166 if (ix) 3909 if (ix)
3167 newprio = coro->prio - newprio; 3910 newprio = coro->prio - newprio;
3168 3911
3169 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3912 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3170 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3913 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3171 3914
3172 coro->prio = newprio; 3915 coro->prio = newprio;
3173 } 3916 }
3174} 3917}
3175 OUTPUT: 3918 OUTPUT:
… …
3190 RETVAL = coro_nready; 3933 RETVAL = coro_nready;
3191 OUTPUT: 3934 OUTPUT:
3192 RETVAL 3935 RETVAL
3193 3936
3194void 3937void
3938suspend (Coro::State self)
3939 PROTOTYPE: $
3940 CODE:
3941 self->flags |= CF_SUSPENDED;
3942
3943void
3944resume (Coro::State self)
3945 PROTOTYPE: $
3946 CODE:
3947 self->flags &= ~CF_SUSPENDED;
3948
3949void
3195_pool_handler (...) 3950_pool_handler (...)
3196 CODE: 3951 CODE:
3197 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3952 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3198 3953
3199void 3954void
… …
3210 for (i = 1; i < items; ++i) 3965 for (i = 1; i < items; ++i)
3211 av_push (av, SvREFCNT_inc_NN (ST (i))); 3966 av_push (av, SvREFCNT_inc_NN (ST (i)));
3212 3967
3213 if ((SV *)hv == &PL_sv_undef) 3968 if ((SV *)hv == &PL_sv_undef)
3214 { 3969 {
3215 PUSHMARK (SP); 3970 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3216 EXTEND (SP, 2);
3217 PUSHs (sv_Coro);
3218 PUSHs ((SV *)cv_pool_handler);
3219 PUTBACK;
3220 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3221 SPAGAIN;
3222
3223 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3971 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3972 SvREFCNT_dec (sv);
3224 } 3973 }
3225 3974
3226 { 3975 {
3227 struct coro *coro = SvSTATE_hv (hv); 3976 struct coro *coro = SvSTATE_hv (hv);
3228 3977
… …
3252rouse_wait (...) 4001rouse_wait (...)
3253 PROTOTYPE: ;$ 4002 PROTOTYPE: ;$
3254 PPCODE: 4003 PPCODE:
3255 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4004 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3256 4005
4006void
4007on_enter (SV *block)
4008 ALIAS:
4009 on_leave = 1
4010 PROTOTYPE: &
4011 CODE:
4012{
4013 struct coro *coro = SvSTATE_current;
4014 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4015
4016 block = s_get_cv_croak (block);
4017
4018 if (!*avp)
4019 *avp = newAV ();
4020
4021 av_push (*avp, SvREFCNT_inc (block));
4022
4023 if (!ix)
4024 on_enterleave_call (aTHX_ block);
4025
4026 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4027 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4028 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4029}
4030
3257 4031
3258MODULE = Coro::State PACKAGE = PerlIO::cede 4032MODULE = Coro::State PACKAGE = PerlIO::cede
3259 4033
3260BOOT: 4034BOOT:
3261 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4035 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3264MODULE = Coro::State PACKAGE = Coro::Semaphore 4038MODULE = Coro::State PACKAGE = Coro::Semaphore
3265 4039
3266SV * 4040SV *
3267new (SV *klass, SV *count = 0) 4041new (SV *klass, SV *count = 0)
3268 CODE: 4042 CODE:
4043{
4044 int semcnt = 1;
4045
4046 if (count)
4047 {
4048 SvGETMAGIC (count);
4049
4050 if (SvOK (count))
4051 semcnt = SvIV (count);
4052 }
4053
3269 RETVAL = sv_bless ( 4054 RETVAL = sv_bless (
3270 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4055 coro_waitarray_new (aTHX_ semcnt),
3271 GvSTASH (CvGV (cv)) 4056 GvSTASH (CvGV (cv))
3272 ); 4057 );
4058}
3273 OUTPUT: 4059 OUTPUT:
3274 RETVAL 4060 RETVAL
3275 4061
3276# helper for Coro::Channel 4062# helper for Coro::Channel and others
3277SV * 4063SV *
3278_alloc (int count) 4064_alloc (int count)
3279 CODE: 4065 CODE:
3280 RETVAL = coro_waitarray_new (aTHX_ count); 4066 RETVAL = coro_waitarray_new (aTHX_ count);
3281 OUTPUT: 4067 OUTPUT:
… …
3323 XSRETURN_NO; 4109 XSRETURN_NO;
3324} 4110}
3325 4111
3326void 4112void
3327waiters (SV *self) 4113waiters (SV *self)
3328 PPCODE: 4114 PPCODE:
3329{ 4115{
3330 AV *av = (AV *)SvRV (self); 4116 AV *av = (AV *)SvRV (self);
3331 int wcount = AvFILLp (av) + 1 - 1; 4117 int wcount = AvFILLp (av) + 1 - 1;
3332 4118
3333 if (GIMME_V == G_SCALAR) 4119 if (GIMME_V == G_SCALAR)
… …
3339 for (i = 1; i <= wcount; ++i) 4125 for (i = 1; i <= wcount; ++i)
3340 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4126 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3341 } 4127 }
3342} 4128}
3343 4129
4130MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4131
4132void
4133_may_delete (SV *sem, int count, unsigned int extra_refs)
4134 PPCODE:
4135{
4136 AV *av = (AV *)SvRV (sem);
4137
4138 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4139 && AvFILLp (av) == 0 /* no waiters, just count */
4140 && SvIV (AvARRAY (av)[0]) == count)
4141 XSRETURN_YES;
4142
4143 XSRETURN_NO;
4144}
4145
3344MODULE = Coro::State PACKAGE = Coro::Signal 4146MODULE = Coro::State PACKAGE = Coro::Signal
3345 4147
3346SV * 4148SV *
3347new (SV *klass) 4149new (SV *klass)
3348 CODE: 4150 CODE:
… …
3360 4162
3361void 4163void
3362broadcast (SV *self) 4164broadcast (SV *self)
3363 CODE: 4165 CODE:
3364{ 4166{
3365 AV *av = (AV *)SvRV (self); 4167 AV *av = (AV *)SvRV (self);
3366 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4168 coro_signal_wake (aTHX_ av, AvFILLp (av));
3367} 4169}
3368 4170
3369void 4171void
3370send (SV *self) 4172send (SV *self)
… …
3378 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4180 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3379} 4181}
3380 4182
3381IV 4183IV
3382awaited (SV *self) 4184awaited (SV *self)
3383 CODE: 4185 CODE:
3384 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4186 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3385 OUTPUT: 4187 OUTPUT:
3386 RETVAL 4188 RETVAL
3387 4189
3388 4190
… …
3393 4195
3394void 4196void
3395_schedule (...) 4197_schedule (...)
3396 CODE: 4198 CODE:
3397{ 4199{
3398 static int incede; 4200 static int incede;
3399 4201
3400 api_cede_notself (aTHX); 4202 api_cede_notself (aTHX);
3401 4203
3402 ++incede; 4204 ++incede;
3403 while (coro_nready >= incede && api_cede (aTHX)) 4205 while (coro_nready >= incede && api_cede (aTHX))
… …
3419 4221
3420void 4222void
3421_register (char *target, char *proto, SV *req) 4223_register (char *target, char *proto, SV *req)
3422 CODE: 4224 CODE:
3423{ 4225{
3424 CV *req_cv = coro_sv_2cv (aTHX_ req); 4226 SV *req_cv = s_get_cv_croak (req);
3425 /* newXSproto doesn't return the CV on 5.8 */ 4227 /* newXSproto doesn't return the CV on 5.8 */
3426 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4228 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3427 sv_setpv ((SV *)slf_cv, proto); 4229 sv_setpv ((SV *)slf_cv, proto);
3428 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4230 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3429} 4231}
3430 4232
4233MODULE = Coro::State PACKAGE = Coro::Select
4234
4235void
4236patch_pp_sselect ()
4237 CODE:
4238 if (!coro_old_pp_sselect)
4239 {
4240 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4241 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4242 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4243 }
4244
4245void
4246unpatch_pp_sselect ()
4247 CODE:
4248 if (coro_old_pp_sselect)
4249 {
4250 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4251 coro_old_pp_sselect = 0;
4252 }
4253
4254MODULE = Coro::State PACKAGE = Coro::Util
4255
4256void
4257_exit (int code)
4258 CODE:
4259 _exit (code);
4260
4261NV
4262time ()
4263 CODE:
4264 RETVAL = nvtime (aTHX);
4265 OUTPUT:
4266 RETVAL
4267
4268NV
4269gettimeofday ()
4270 PPCODE:
4271{
4272 UV tv [2];
4273 u2time (aTHX_ tv);
4274 EXTEND (SP, 2);
4275 PUSHs (sv_2mortal (newSVuv (tv [0])));
4276 PUSHs (sv_2mortal (newSVuv (tv [1])));
4277}
4278

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