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Comparing Coro/Coro/State.xs (file contents):
Revision 1.313 by root, Thu Nov 20 03:22:59 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
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif
108
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD
111#endif
112
113#ifndef CORO_STACKGUARD
114# define CORO_STACKGUARD 0
115#endif 62#endif
116 63
117/* prefer perl internal functions over our own? */ 64/* prefer perl internal functions over our own? */
118#ifndef CORO_PREFER_PERL_FUNCTIONS 65#ifndef CORO_PREFER_PERL_FUNCTIONS
119# define CORO_PREFER_PERL_FUNCTIONS 0 66# define CORO_PREFER_PERL_FUNCTIONS 0
… …
127#else 74#else
128# define dSTACKLEVEL volatile void *stacklevel 75# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel) 76# define STACKLEVEL ((void *)&stacklevel)
130#endif 77#endif
131 78
132#define IN_DESTRUCT (PL_main_cv == Nullcv) 79#define IN_DESTRUCT PL_dirty
133
134#if __GNUC__ >= 3
135# define attribute(x) __attribute__(x)
136# define expect(expr,value) __builtin_expect ((expr),(value))
137# define INLINE static inline
138#else
139# define attribute(x)
140# define expect(expr,value) (expr)
141# define INLINE static
142#endif
143
144#define expect_false(expr) expect ((expr) != 0, 0)
145#define expect_true(expr) expect ((expr) != 0, 1)
146
147#define NOINLINE attribute ((noinline))
148 80
149#include "CoroAPI.h" 81#include "CoroAPI.h"
150#define GCoroAPI (&coroapi) /* very sneaky */ 82#define GCoroAPI (&coroapi) /* very sneaky */
151 83
152#ifdef USE_ITHREADS 84#ifdef USE_ITHREADS
153# if CORO_PTHREAD 85# if CORO_PTHREAD
154static void *coro_thx; 86static void *coro_thx;
155# endif 87# endif
156#endif 88#endif
157 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
158static 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]);
159 102
160/* we hijack an hopefully unused CV flag for our purposes */ 103/* we hijack an hopefully unused CV flag for our purposes */
161#define CVf_SLF 0x4000 104#define CVf_SLF 0x4000
162static OP *pp_slf (pTHX); 105static OP *pp_slf (pTHX);
106static void slf_destroy (pTHX_ struct coro *coro);
163 107
164static U32 cctx_gen; 108static U32 cctx_gen;
165static size_t cctx_stacksize = CORO_STACKSIZE; 109static size_t cctx_stacksize = CORO_STACKSIZE;
166static struct CoroAPI coroapi; 110static struct CoroAPI coroapi;
167static AV *main_mainstack; /* used to differentiate between $main and others */ 111static AV *main_mainstack; /* used to differentiate between $main and others */
168static JMPENV *main_top_env; 112static JMPENV *main_top_env;
169static HV *coro_state_stash, *coro_stash; 113static HV *coro_state_stash, *coro_stash;
170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 114static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171 115
116static AV *av_destroy; /* destruction queue */
117static SV *sv_manager; /* the manager coro */
118static SV *sv_idle; /* $Coro::idle */
119
172static GV *irsgv; /* $/ */ 120static GV *irsgv; /* $/ */
173static GV *stdoutgv; /* *STDOUT */ 121static GV *stdoutgv; /* *STDOUT */
174static SV *rv_diehook; 122static SV *rv_diehook;
175static SV *rv_warnhook; 123static SV *rv_warnhook;
176static HV *hv_sig; /* %SIG */ 124static HV *hv_sig; /* %SIG */
177 125
178/* async_pool helper stuff */ 126/* async_pool helper stuff */
179static SV *sv_pool_rss; 127static SV *sv_pool_rss;
180static SV *sv_pool_size; 128static SV *sv_pool_size;
181static SV *sv_async_pool_idle; 129static SV *sv_async_pool_idle; /* description string */
182static AV *av_async_pool; 130static AV *av_async_pool; /* idle pool */
183static SV *sv_Coro; 131static SV *sv_Coro; /* class string */
184static CV *cv_pool_handler; 132static CV *cv_pool_handler;
185static CV *cv_coro_new;
186 133
187/* Coro::AnyEvent */ 134/* Coro::AnyEvent */
188static SV *sv_activity; 135static SV *sv_activity;
189 136
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
190static struct coro_cctx *cctx_first; 143static struct coro_cctx *cctx_first;
191static int cctx_count, cctx_idle; 144static int cctx_count, cctx_idle;
192 145
193enum { 146enum
147{
194 CC_MAPPED = 0x01, 148 CC_MAPPED = 0x01,
195 CC_NOREUSE = 0x02, /* throw this away after tracing */ 149 CC_NOREUSE = 0x02, /* throw this away after tracing */
196 CC_TRACE = 0x04, 150 CC_TRACE = 0x04,
197 CC_TRACE_SUB = 0x08, /* trace sub calls */ 151 CC_TRACE_SUB = 0x08, /* trace sub calls */
198 CC_TRACE_LINE = 0x10, /* trace each statement */ 152 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
203typedef struct coro_cctx 157typedef struct coro_cctx
204{ 158{
205 struct coro_cctx *next; 159 struct coro_cctx *next;
206 160
207 /* the stack */ 161 /* the stack */
208 void *sptr; 162 struct coro_stack stack;
209 size_t ssize;
210 163
211 /* cpu state */ 164 /* cpu state */
212 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
213 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
214 JMPENV *top_env; 169 JMPENV *top_env;
215 coro_context cctx; 170 coro_context cctx;
216 171
217 U32 gen; 172 U32 gen;
218#if CORO_USE_VALGRIND 173#if CORO_USE_VALGRIND
219 int valgrind_id; 174 int valgrind_id;
220#endif 175#endif
221 unsigned char flags; 176 unsigned char flags;
222} coro_cctx; 177} coro_cctx;
223 178
179static coro_cctx *cctx_current; /* the currently running cctx */
180
181/*****************************************************************************/
182
183static MGVTBL coro_state_vtbl;
184
224enum { 185enum
186{
225 CF_RUNNING = 0x0001, /* coroutine is running */ 187 CF_RUNNING = 0x0001, /* coroutine is running */
226 CF_READY = 0x0002, /* coroutine is ready */ 188 CF_READY = 0x0002, /* coroutine is ready */
227 CF_NEW = 0x0004, /* has never been switched to */ 189 CF_NEW = 0x0004, /* has never been switched to */
228 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) */
229}; 193};
230 194
231/* 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 */
232typedef struct 196typedef struct
233{ 197{
234 SV *defsv;
235 AV *defav;
236 SV *errsv;
237 SV *irsgv;
238#define VAR(name,type) type name; 198 #define VARx(name,expr,type) type name;
239# include "state.h" 199 #include "state.h"
240#undef VAR
241} perl_slots; 200} perl_slots;
242 201
202/* how many context stack entries do we need for perl_slots */
243#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))
244 204
245/* this is a structure representing a perl-level coroutine */ 205/* this is a structure representing a perl-level coroutine */
246struct coro { 206struct coro
207{
247 /* the C coroutine allocated to this perl coroutine, if any */ 208 /* the C coroutine allocated to this perl coroutine, if any */
248 coro_cctx *cctx; 209 coro_cctx *cctx;
210
211 /* ready queue */
212 struct coro *next_ready;
249 213
250 /* state data */ 214 /* state data */
251 struct CoroSLF slf_frame; /* saved slf frame */ 215 struct CoroSLF slf_frame; /* saved slf frame */
252 AV *mainstack; 216 AV *mainstack;
253 perl_slots *slot; /* basically the saved sp */ 217 perl_slots *slot; /* basically the saved sp */
254 218
255 CV *startcv; /* the CV to execute */ 219 CV *startcv; /* the CV to execute */
256 AV *args; /* data associated with this coroutine (initial args) */ 220 AV *args; /* data associated with this coroutine (initial args) */
257 int refcnt; /* coroutines are refcounted, yes */
258 int flags; /* CF_ flags */ 221 int flags; /* CF_ flags */
259 HV *hv; /* the perl hash associated with this coro, if any */ 222 HV *hv; /* the perl hash associated with this coro, if any */
260 void (*on_destroy)(pTHX_ struct coro *coro);
261 223
262 /* statistics */ 224 /* statistics */
263 int usecount; /* number of transfers to this coro */ 225 int usecount; /* number of transfers to this coro */
264 226
265 /* coro process data */ 227 /* coro process data */
266 int prio; 228 int prio;
267 SV *except; /* exception to be thrown */ 229 SV *except; /* exception to be thrown */
268 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 */
269 233
270 /* async_pool */ 234 /* async_pool */
271 SV *saved_deffh; 235 SV *saved_deffh;
272 SV *invoke_cb; 236 SV *invoke_cb;
273 AV *invoke_av; 237 AV *invoke_av;
274 238
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
275 /* linked list */ 249 /* linked list */
276 struct coro *next, *prev; 250 struct coro *next, *prev;
277}; 251};
278 252
279typedef struct coro *Coro__State; 253typedef struct coro *Coro__State;
280typedef struct coro *Coro__State_or_hashref; 254typedef struct coro *Coro__State_or_hashref;
281 255
282/* the following variables are effectively part of the perl context */ 256/* the following variables are effectively part of the perl context */
283/* and get copied between struct coro and these variables */ 257/* and get copied between struct coro and these variables */
284/* the mainr easonw e don't support windows process emulation */ 258/* the main reason we don't support windows process emulation */
285static struct CoroSLF slf_frame; /* the current slf frame */ 259static struct CoroSLF slf_frame; /* the current slf frame */
286 260
287/** Coro ********************************************************************/ 261/** Coro ********************************************************************/
288 262
289#define PRIO_MAX 3 263#define CORO_PRIO_MAX 3
290#define PRIO_HIGH 1 264#define CORO_PRIO_HIGH 1
291#define PRIO_NORMAL 0 265#define CORO_PRIO_NORMAL 0
292#define PRIO_LOW -1 266#define CORO_PRIO_LOW -1
293#define PRIO_IDLE -3 267#define CORO_PRIO_IDLE -3
294#define PRIO_MIN -4 268#define CORO_PRIO_MIN -4
295 269
296/* for Coro.pm */ 270/* for Coro.pm */
297static SV *coro_current; 271static SV *coro_current;
298static SV *coro_readyhook; 272static SV *coro_readyhook;
299static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 273static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
300static CV *cv_coro_run, *cv_coro_terminate; 274static CV *cv_coro_run;
301static struct coro *coro_first; 275static struct coro *coro_first;
302#define coro_nready coroapi.nready 276#define coro_nready coroapi.nready
303 277
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
304/** lowlevel stuff **********************************************************/ 373/** lowlevel stuff **********************************************************/
305 374
306static SV * 375static SV * ecb_noinline
307coro_get_sv (pTHX_ const char *name, int create) 376coro_get_sv (pTHX_ const char *name, int create)
308{ 377{
309#if PERL_VERSION_ATLEAST (5,10,0) 378#if PERL_VERSION_ATLEAST (5,10,0)
310 /* 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 */
311 get_sv (name, create); 380 get_sv (name, create);
312#endif 381#endif
313 return get_sv (name, create); 382 return get_sv (name, create);
314} 383}
315 384
316static AV * 385static AV * ecb_noinline
317coro_get_av (pTHX_ const char *name, int create) 386coro_get_av (pTHX_ const char *name, int create)
318{ 387{
319#if PERL_VERSION_ATLEAST (5,10,0) 388#if PERL_VERSION_ATLEAST (5,10,0)
320 /* 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 */
321 get_av (name, create); 390 get_av (name, create);
322#endif 391#endif
323 return get_av (name, create); 392 return get_av (name, create);
324} 393}
325 394
326static HV * 395static HV * ecb_noinline
327coro_get_hv (pTHX_ const char *name, int create) 396coro_get_hv (pTHX_ const char *name, int create)
328{ 397{
329#if PERL_VERSION_ATLEAST (5,10,0) 398#if PERL_VERSION_ATLEAST (5,10,0)
330 /* 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 */
331 get_hv (name, create); 400 get_hv (name, create);
332#endif 401#endif
333 return get_hv (name, create); 402 return get_hv (name, create);
334} 403}
335 404
336/* may croak */ 405ecb_inline void
337INLINE CV * 406coro_times_update (void)
338coro_sv_2cv (pTHX_ SV *sv)
339{ 407{
340 HV *st; 408#ifdef coro_clock_gettime
341 GV *gvp; 409 struct timespec ts;
342 return sv_2cv (sv, &st, &gvp, 0);
343}
344 410
345static 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 *
346coro_clone_padlist (pTHX_ CV *cv) 511coro_derive_padlist (pTHX_ CV *cv)
347{ 512{
348 AV *padlist = CvPADLIST (cv); 513 PADLIST *padlist = CvPADLIST (cv);
349 AV *newpadlist, *newpad; 514 PADLIST *newpadlist;
515 PAD *newpad;
516 PADOFFSET off = PadlistMAX (padlist) + 1;
350 517
351 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. */
352 AvREAL_off (newpadlist); 543 AvREAL_off (newpadlist);
353#if PERL_VERSION_ATLEAST (5,10,0) 544#endif
354 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);
355#else 580#else
356 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
357#endif
358 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
359 --AvFILLp (padlist);
360
361 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
362 av_store (newpadlist, 1, (SV *)newpad);
363
364 return newpadlist;
365}
366
367static void
368free_padlist (pTHX_ AV *padlist)
369{
370 /* may be during global destruction */
371 if (SvREFCNT (padlist))
372 {
373 I32 i = AvFILLp (padlist); 581 AvFILLp (padlist) = -1;
374 while (i >= 0) 582 AvREAL_off (padlist);
375 {
376 SV **svp = av_fetch (padlist, i--, FALSE);
377 if (svp)
378 {
379 SV *sv;
380 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
381 SvREFCNT_dec (sv);
382
383 SvREFCNT_dec (*svp);
384 }
385 }
386
387 SvREFCNT_dec ((SV*)padlist); 583 SvREFCNT_dec ((SV*)padlist);
584#endif
388 } 585 }
389} 586}
390 587
391static int 588static int
392coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 589coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
393{ 590{
394 AV *padlist; 591 PADLIST *padlist;
395 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;
396 594
397 /* casting is fun. */ 595 /* perl manages to free our internal AV and _then_ call us */
398 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 596 if (IN_DESTRUCT)
597 return 0;
598
599 while (len--)
399 free_padlist (aTHX_ padlist); 600 free_padlist (aTHX_ padlists[len]);
400
401 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
402 601
403 return 0; 602 return 0;
404} 603}
405
406#define CORO_MAGIC_type_cv 26
407#define CORO_MAGIC_type_state PERL_MAGIC_ext
408 604
409static MGVTBL coro_cv_vtbl = { 605static MGVTBL coro_cv_vtbl = {
410 0, 0, 0, 0, 606 0, 0, 0, 0,
411 coro_cv_free 607 coro_cv_free
412}; 608};
413 609
414#define CORO_MAGIC_NN(sv, type) \
415 (expect_true (SvMAGIC (sv)->mg_type == type) \
416 ? SvMAGIC (sv) \
417 : mg_find (sv, type))
418
419#define CORO_MAGIC(sv, type) \
420 (expect_true (SvMAGIC (sv)) \
421 ? CORO_MAGIC_NN (sv, type) \
422 : 0)
423
424#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
425#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
426
427INLINE struct coro *
428SvSTATE_ (pTHX_ SV *coro)
429{
430 HV *stash;
431 MAGIC *mg;
432
433 if (SvROK (coro))
434 coro = SvRV (coro);
435
436 if (expect_false (SvTYPE (coro) != SVt_PVHV))
437 croak ("Coro::State object required");
438
439 stash = SvSTASH (coro);
440 if (expect_false (stash != coro_stash && stash != coro_state_stash))
441 {
442 /* very slow, but rare, check */
443 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
444 croak ("Coro::State object required");
445 }
446
447 mg = CORO_MAGIC_state (coro);
448 return (struct coro *)mg->mg_ptr;
449}
450
451#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
452
453/* faster than SvSTATE, but expects a coroutine hv */
454#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
455#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
456
457/* the next two functions merely cache the padlists */ 610/* the next two functions merely cache the padlists */
458static void 611ecb_inline void
459get_padlist (pTHX_ CV *cv) 612get_padlist (pTHX_ CV *cv)
460{ 613{
461 MAGIC *mg = CORO_MAGIC_cv (cv); 614 MAGIC *mg = CORO_MAGIC_cv (cv);
462 AV *av; 615 size_t *lenp;
463 616
464 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 617 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
465 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 618 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
466 else 619 else
467 { 620 {
468#if CORO_PREFER_PERL_FUNCTIONS 621#if CORO_PREFER_PERL_FUNCTIONS
469 /* this is probably cleaner? but also slower! */ 622 /* this is probably cleaner? but also slower! */
470 /* in practise, it seems to be less stable */ 623 /* in practise, it seems to be less stable */
471 CV *cp = Perl_cv_clone (aTHX_ cv); 624 CV *cp = Perl_cv_clone (aTHX_ cv);
472 CvPADLIST (cv) = CvPADLIST (cp); 625 CvPADLIST (cv) = CvPADLIST (cp);
473 CvPADLIST (cp) = 0; 626 CvPADLIST (cp) = 0;
474 SvREFCNT_dec (cp); 627 SvREFCNT_dec (cp);
475#else 628#else
476 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 629 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
477#endif 630#endif
478 } 631 }
479} 632}
480 633
481static void 634ecb_inline void
482put_padlist (pTHX_ CV *cv) 635put_padlist (pTHX_ CV *cv)
483{ 636{
484 MAGIC *mg = CORO_MAGIC_cv (cv); 637 MAGIC *mg = CORO_MAGIC_cv (cv);
485 AV *av;
486 638
487 if (expect_false (!mg)) 639 if (ecb_expect_false (!mg))
640 {
488 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);
489 649
490 av = (AV *)mg->mg_obj; 650 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
491
492 if (expect_false (AvFILLp (av) >= AvMAX (av)))
493 av_extend (av, AvMAX (av) + 1);
494
495 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
496} 651}
497 652
498/** 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);
499 709
500static void 710static void
501load_perl (pTHX_ Coro__State c) 711load_perl (pTHX_ Coro__State c)
502{ 712{
503 perl_slots *slot = c->slot; 713 perl_slots *slot = c->slot;
504 c->slot = 0; 714 c->slot = 0;
505 715
506 PL_mainstack = c->mainstack; 716 PL_mainstack = c->mainstack;
507 717
508 GvSV (PL_defgv) = slot->defsv; 718#if CORO_JIT
509 GvAV (PL_defgv) = slot->defav; 719 load_perl_slots (slot);
510 GvSV (PL_errgv) = slot->errsv; 720#else
511 GvSV (irsgv) = slot->irsgv;
512
513 #define VAR(name,type) PL_ ## name = slot->name; 721 #define VARx(name,expr,type) expr = slot->name;
514 # include "state.h" 722 #include "state.h"
515 #undef VAR 723#endif
516 724
517 { 725 {
518 dSP; 726 dSP;
519 727
520 CV *cv; 728 CV *cv;
521 729
522 /* now do the ugly restore mess */ 730 /* now do the ugly restore mess */
523 while (expect_true (cv = (CV *)POPs)) 731 while (ecb_expect_true (cv = (CV *)POPs))
524 { 732 {
525 put_padlist (aTHX_ cv); /* mark this padlist as available */ 733 put_padlist (aTHX_ cv); /* mark this padlist as available */
526 CvDEPTH (cv) = PTR2IV (POPs); 734 CvDEPTH (cv) = PTR2IV (POPs);
527 CvPADLIST (cv) = (AV *)POPs; 735 CvPADLIST (cv) = (PADLIST *)POPs;
528 } 736 }
529 737
530 PUTBACK; 738 PUTBACK;
531 } 739 }
532 740
533 slf_frame = c->slf_frame; 741 slf_frame = c->slf_frame;
534 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);
535} 761}
536 762
537static void 763static void
538save_perl (pTHX_ Coro__State c) 764save_perl (pTHX_ Coro__State c)
539{ 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
540 c->except = CORO_THROW; 784 c->except = CORO_THROW;
541 c->slf_frame = slf_frame; 785 c->slf_frame = slf_frame;
542 786
543 { 787 {
544 dSP; 788 dSP;
… …
553 797
554 XPUSHs (Nullsv); 798 XPUSHs (Nullsv);
555 /* this loop was inspired by pp_caller */ 799 /* this loop was inspired by pp_caller */
556 for (;;) 800 for (;;)
557 { 801 {
558 while (expect_true (cxix >= 0)) 802 while (ecb_expect_true (cxix >= 0))
559 { 803 {
560 PERL_CONTEXT *cx = &ccstk[cxix--]; 804 PERL_CONTEXT *cx = &ccstk[cxix--];
561 805
562 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))
563 { 807 {
564 CV *cv = cx->blk_sub.cv; 808 CV *cv = cx->blk_sub.cv;
565 809
566 if (expect_true (CvDEPTH (cv))) 810 if (ecb_expect_true (CvDEPTH (cv)))
567 { 811 {
568 EXTEND (SP, 3); 812 EXTEND (SP, 3);
569 PUSHs ((SV *)CvPADLIST (cv)); 813 PUSHs ((SV *)CvPADLIST (cv));
570 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 814 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
571 PUSHs ((SV *)cv); 815 PUSHs ((SV *)cv);
… …
574 get_padlist (aTHX_ cv); 818 get_padlist (aTHX_ cv);
575 } 819 }
576 } 820 }
577 } 821 }
578 822
579 if (expect_true (top_si->si_type == PERLSI_MAIN)) 823 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
580 break; 824 break;
581 825
582 top_si = top_si->si_prev; 826 top_si = top_si->si_prev;
583 ccstk = top_si->si_cxstack; 827 ccstk = top_si->si_cxstack;
584 cxix = top_si->si_cxix; 828 cxix = top_si->si_cxix;
… …
586 830
587 PUTBACK; 831 PUTBACK;
588 } 832 }
589 833
590 /* allocate some space on the context stack for our purposes */ 834 /* allocate some space on the context stack for our purposes */
591 /* we manually unroll here, as usually 2 slots is enough */ 835 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
592 if (SLOT_COUNT >= 1) CXINC;
593 if (SLOT_COUNT >= 2) CXINC;
594 if (SLOT_COUNT >= 3) CXINC;
595 { 836 {
596 int i; 837 unsigned int i;
838
597 for (i = 3; i < SLOT_COUNT; ++i) 839 for (i = 0; i < SLOT_COUNT; ++i)
598 CXINC; 840 CXINC;
599 } 841
600 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 842 cxstack_ix -= SLOT_COUNT; /* undo allocation */
843 }
601 844
602 c->mainstack = PL_mainstack; 845 c->mainstack = PL_mainstack;
603 846
604 { 847 {
605 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 848 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
606 849
607 slot->defav = GvAV (PL_defgv); 850#if CORO_JIT
608 slot->defsv = DEFSV; 851 save_perl_slots (slot);
609 slot->errsv = ERRSV; 852#else
610 slot->irsgv = GvSV (irsgv);
611
612 #define VAR(name,type) slot->name = PL_ ## name; 853 #define VARx(name,expr,type) slot->name = expr;
613 # include "state.h" 854 #include "state.h"
614 #undef VAR 855#endif
615 } 856 }
616} 857}
617 858
618/* 859/*
619 * allocate various perl stacks. This is almost an exact copy 860 * allocate various perl stacks. This is almost an exact copy
… …
625# define coro_init_stacks(thx) init_stacks () 866# define coro_init_stacks(thx) init_stacks ()
626#else 867#else
627static void 868static void
628coro_init_stacks (pTHX) 869coro_init_stacks (pTHX)
629{ 870{
630 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() */
631 PL_curstackinfo->si_type = PERLSI_MAIN; 872 PL_curstackinfo->si_type = PERLSI_MAIN;
632 PL_curstack = PL_curstackinfo->si_stack; 873 PL_curstack = PL_curstackinfo->si_stack;
633 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 874 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
634 875
635 PL_stack_base = AvARRAY(PL_curstack); 876 PL_stack_base = AvARRAY(PL_curstack);
… …
650#endif 891#endif
651 892
652 New(54,PL_scopestack,8,I32); 893 New(54,PL_scopestack,8,I32);
653 PL_scopestack_ix = 0; 894 PL_scopestack_ix = 0;
654 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
655 899
656 New(54,PL_savestack,24,ANY); 900 New(54,PL_savestack,24,ANY);
657 PL_savestack_ix = 0; 901 PL_savestack_ix = 0;
658 PL_savestack_max = 24; 902 PL_savestack_max = 24;
659 903
… …
687 } 931 }
688 932
689 Safefree (PL_tmps_stack); 933 Safefree (PL_tmps_stack);
690 Safefree (PL_markstack); 934 Safefree (PL_markstack);
691 Safefree (PL_scopestack); 935 Safefree (PL_scopestack);
936#if HAS_SCOPESTACK_NAME
937 Safefree (PL_scopestack_name);
938#endif
692 Safefree (PL_savestack); 939 Safefree (PL_savestack);
693#if !PERL_VERSION_ATLEAST (5,10,0) 940#if !PERL_VERSION_ATLEAST (5,10,0)
694 Safefree (PL_retstack); 941 Safefree (PL_retstack);
695#endif 942#endif
696} 943}
… …
742#endif 989#endif
743 990
744/* 991/*
745 * This overrides the default magic get method of %SIG elements. 992 * This overrides the default magic get method of %SIG elements.
746 * 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
747 * 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),
748 * readback here. 995 * we just provide our own readback here.
749 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
750 * not expecting this to actually change the hook. This is a potential problem
751 * when a schedule happens then, but we ignore this.
752 */ 996 */
753static int 997static int ecb_cold
754coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 998coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
755{ 999{
756 const char *s = MgPV_nolen_const (mg); 1000 const char *s = MgPV_nolen_const (mg);
757 1001
758 if (*s == '_') 1002 if (*s == '_')
759 { 1003 {
760 SV **svp = 0; 1004 SV **svp = 0;
761 1005
762 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1006 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
763 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1007 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
764 1008
765 if (svp) 1009 if (svp)
766 { 1010 {
767 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);
768 return 0; 1021 return 0;
769 } 1022 }
770 } 1023 }
771 1024
772 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1025 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
773} 1026}
774 1027
775static int 1028static int ecb_cold
776coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1029coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
777{ 1030{
778 const char *s = MgPV_nolen_const (mg); 1031 const char *s = MgPV_nolen_const (mg);
779 1032
780 if (*s == '_') 1033 if (*s == '_')
… …
794 } 1047 }
795 1048
796 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1049 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
797} 1050}
798 1051
799static int 1052static int ecb_cold
800coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1053coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
801{ 1054{
802 const char *s = MgPV_nolen_const (mg); 1055 const char *s = MgPV_nolen_const (mg);
803 1056
804 if (*s == '_') 1057 if (*s == '_')
… …
809 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1062 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
810 1063
811 if (svp) 1064 if (svp)
812 { 1065 {
813 SV *old = *svp; 1066 SV *old = *svp;
814 *svp = newSVsv (sv); 1067 *svp = SvOK (sv) ? newSVsv (sv) : 0;
815 SvREFCNT_dec (old); 1068 SvREFCNT_dec (old);
816 return 0; 1069 return 0;
817 } 1070 }
818 } 1071 }
819 1072
… …
831slf_check_nop (pTHX_ struct CoroSLF *frame) 1084slf_check_nop (pTHX_ struct CoroSLF *frame)
832{ 1085{
833 return 0; 1086 return 0;
834} 1087}
835 1088
836static UNOP coro_setup_op; 1089static int
1090slf_check_repeat (pTHX_ struct CoroSLF *frame)
1091{
1092 return 1;
1093}
837 1094
838static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1095static UNOP init_perl_op;
1096
1097ecb_noinline static void /* noinline to keep it out of the transfer fast path */
839coro_setup (pTHX_ struct coro *coro) 1098init_perl (pTHX_ struct coro *coro)
840{ 1099{
841 /* 1100 /*
842 * emulate part of the perl startup here. 1101 * emulate part of the perl startup here.
843 */ 1102 */
844 coro_init_stacks (aTHX); 1103 coro_init_stacks (aTHX);
845 1104
846 PL_runops = RUNOPS_DEFAULT; 1105 PL_runops = RUNOPS_DEFAULT;
847 PL_curcop = &PL_compiling; 1106 PL_curcop = &PL_compiling;
848 PL_in_eval = EVAL_NULL; 1107 PL_in_eval = EVAL_NULL;
849 PL_comppad = 0; 1108 PL_comppad = 0;
1109 PL_comppad_name = 0;
1110 PL_comppad_name_fill = 0;
1111 PL_comppad_name_floor = 0;
850 PL_curpm = 0; 1112 PL_curpm = 0;
851 PL_curpad = 0; 1113 PL_curpad = 0;
852 PL_localizing = 0; 1114 PL_localizing = 0;
853 PL_dirty = 0;
854 PL_restartop = 0; 1115 PL_restartop = 0;
855#if PERL_VERSION_ATLEAST (5,10,0) 1116#if PERL_VERSION_ATLEAST (5,10,0)
856 PL_parser = 0; 1117 PL_parser = 0;
857#endif 1118#endif
1119 PL_hints = 0;
858 1120
859 /* recreate the die/warn hooks */ 1121 /* recreate the die/warn hooks */
860 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1122 PL_diehook = SvREFCNT_inc (rv_diehook);
861 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1123 PL_warnhook = SvREFCNT_inc (rv_warnhook);
862 1124
863 GvSV (PL_defgv) = newSV (0); 1125 GvSV (PL_defgv) = newSV (0);
864 GvAV (PL_defgv) = coro->args; coro->args = 0; 1126 GvAV (PL_defgv) = coro->args; coro->args = 0;
865 GvSV (PL_errgv) = newSV (0); 1127 GvSV (PL_errgv) = newSV (0);
866 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;
867 PL_rs = newSVsv (GvSV (irsgv)); 1130 PL_rs = newSVsv (GvSV (irsgv));
868 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1131 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
869 1132
870 { 1133 {
871 dSP; 1134 dSP;
… …
886 /* 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
887 * 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.
888 */ 1151 */
889 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 */
890 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;
891 1155
892 /* 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 */
893 coro_setup_op.op_next = PL_op; 1157 init_perl_op.op_next = PL_op;
894 coro_setup_op.op_type = OP_CUSTOM; 1158 init_perl_op.op_type = OP_ENTERSUB;
895 coro_setup_op.op_ppaddr = pp_slf; 1159 init_perl_op.op_ppaddr = pp_slf;
896 /* 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 */
897 1161
898 PL_op = (OP *)&coro_setup_op; 1162 PL_op = (OP *)&init_perl_op;
899 1163
900 /* copy throw, in case it was set before coro_setup */ 1164 /* copy throw, in case it was set before init_perl */
901 CORO_THROW = coro->except; 1165 CORO_THROW = coro->except;
902}
903 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
904static void 1176static void
905coro_destruct (pTHX_ struct coro *coro) 1177coro_unwind_stacks (pTHX)
906{ 1178{
907 if (!IN_DESTRUCT) 1179 if (!IN_DESTRUCT)
908 { 1180 {
909 /* restore all saved variables and stuff */ 1181 /* restore all saved variables and stuff */
910 LEAVE_SCOPE (0); 1182 LEAVE_SCOPE (0);
… …
918 POPSTACK_TO (PL_mainstack); 1190 POPSTACK_TO (PL_mainstack);
919 1191
920 /* unwind main stack */ 1192 /* unwind main stack */
921 dounwind (-1); 1193 dounwind (-1);
922 } 1194 }
1195}
923 1196
924 SvREFCNT_dec (GvSV (PL_defgv)); 1197static void
925 SvREFCNT_dec (GvAV (PL_defgv)); 1198destroy_perl (pTHX_ struct coro *coro)
926 SvREFCNT_dec (GvSV (PL_errgv)); 1199{
927 SvREFCNT_dec (PL_defoutgv); 1200 SV *svf [9];
928 SvREFCNT_dec (PL_rs);
929 SvREFCNT_dec (GvSV (irsgv));
930 1201
931 SvREFCNT_dec (PL_diehook);
932 SvREFCNT_dec (PL_warnhook);
933 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
934 SvREFCNT_dec (coro->saved_deffh); 1245 SvREFCNT_dec (coro->saved_deffh);
935 SvREFCNT_dec (coro->rouse_cb); 1246 SvREFCNT_dec (coro->rouse_cb);
936 SvREFCNT_dec (coro->invoke_cb); 1247 SvREFCNT_dec (coro->invoke_cb);
937 SvREFCNT_dec (coro->invoke_av); 1248 SvREFCNT_dec (coro->invoke_av);
938 1249 }
939 coro_destruct_stacks (aTHX);
940} 1250}
941 1251
942INLINE void 1252ecb_inline void
943free_coro_mortal (pTHX) 1253free_coro_mortal (pTHX)
944{ 1254{
945 if (expect_true (coro_mortal)) 1255 if (ecb_expect_true (coro_mortal))
946 { 1256 {
947 SvREFCNT_dec (coro_mortal); 1257 SvREFCNT_dec ((SV *)coro_mortal);
948 coro_mortal = 0; 1258 coro_mortal = 0;
949 } 1259 }
950} 1260}
951 1261
952static int 1262static int
953runops_trace (pTHX) 1263runops_trace (pTHX)
954{ 1264{
955 COP *oldcop = 0; 1265 COP *oldcop = 0;
956 int oldcxix = -2; 1266 int oldcxix = -2;
957 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
958 coro_cctx *cctx = coro->cctx;
959 1267
960 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1268 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
961 { 1269 {
962 PERL_ASYNC_CHECK (); 1270 PERL_ASYNC_CHECK ();
963 1271
964 if (cctx->flags & CC_TRACE_ALL) 1272 if (cctx_current->flags & CC_TRACE_ALL)
965 { 1273 {
966 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)
967 { 1275 {
968 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1276 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
969 SV **bot, **top; 1277 SV **bot, **top;
970 AV *av = newAV (); /* return values */ 1278 AV *av = newAV (); /* return values */
971 SV **cb; 1279 SV **cb;
… …
1008 1316
1009 if (PL_curcop != &PL_compiling) 1317 if (PL_curcop != &PL_compiling)
1010 { 1318 {
1011 SV **cb; 1319 SV **cb;
1012 1320
1013 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1321 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1014 { 1322 {
1015 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1323 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1016 1324
1017 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1325 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1018 { 1326 {
1019 runops_proc_t old_runops = PL_runops;
1020 dSP; 1327 dSP;
1021 GV *gv = CvGV (cx->blk_sub.cv); 1328 GV *gv = CvGV (cx->blk_sub.cv);
1022 SV *fullname = sv_2mortal (newSV (0)); 1329 SV *fullname = sv_2mortal (newSV (0));
1023 1330
1024 if (isGV (gv)) 1331 if (isGV (gv))
… …
1042 } 1349 }
1043 1350
1044 oldcxix = cxstack_ix; 1351 oldcxix = cxstack_ix;
1045 } 1352 }
1046 1353
1047 if (cctx->flags & CC_TRACE_LINE) 1354 if (cctx_current->flags & CC_TRACE_LINE)
1048 { 1355 {
1049 dSP; 1356 dSP;
1050 1357
1051 PL_runops = RUNOPS_DEFAULT; 1358 PL_runops = RUNOPS_DEFAULT;
1052 ENTER; 1359 ENTER;
… …
1071 1378
1072 TAINT_NOT; 1379 TAINT_NOT;
1073 return 0; 1380 return 0;
1074} 1381}
1075 1382
1076static struct coro_cctx *cctx_ssl_cctx;
1077static struct CoroSLF cctx_ssl_frame; 1383static struct CoroSLF cctx_ssl_frame;
1078 1384
1079static void 1385static void
1080slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1386slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1081{ 1387{
1082 ta->prev = (struct coro *)cctx_ssl_cctx;
1083 ta->next = 0; 1388 ta->prev = 0;
1084} 1389}
1085 1390
1086static int 1391static int
1087slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1392slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1088{ 1393{
… …
1090 1395
1091 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 */
1092} 1397}
1093 1398
1094/* 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 */
1095static void NOINLINE 1400static void ecb_noinline
1096cctx_prepare (pTHX_ coro_cctx *cctx) 1401cctx_prepare (pTHX)
1097{ 1402{
1098 PL_top_env = &PL_start_env; 1403 PL_top_env = &PL_start_env;
1099 1404
1100 if (cctx->flags & CC_TRACE) 1405 if (cctx_current->flags & CC_TRACE)
1101 PL_runops = runops_trace; 1406 PL_runops = runops_trace;
1102 1407
1103 /* 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
1104 * that can lead to creation of a new cctx */ 1409 * that can lead to creation of a new cctx */
1105 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)",
1106 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1411 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1107 1412
1108 /* 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 */
1109 cctx_ssl_cctx = cctx;
1110 cctx_ssl_frame = slf_frame; 1414 cctx_ssl_frame = slf_frame;
1111 1415
1112 slf_frame.prepare = slf_prepare_set_stacklevel; 1416 slf_frame.prepare = slf_prepare_set_stacklevel;
1113 slf_frame.check = slf_check_set_stacklevel; 1417 slf_frame.check = slf_check_set_stacklevel;
1114} 1418}
1115 1419
1116/* 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 */
1117INLINE void 1421ecb_inline void
1118transfer_tail (pTHX) 1422transfer_tail (pTHX)
1119{ 1423{
1120 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);
1121} 1437}
1122 1438
1123/* 1439/*
1124 * this is a _very_ stripped down perl interpreter ;) 1440 * this is a _very_ stripped down perl interpreter ;)
1125 */ 1441 */
… …
1137 /* normally we would need to skip the entersub here */ 1453 /* normally we would need to skip the entersub here */
1138 /* 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 */
1139 /* PL_nop = PL_nop->op_next */ 1455 /* PL_nop = PL_nop->op_next */
1140 1456
1141 /* inject a fake subroutine call to cctx_init */ 1457 /* inject a fake subroutine call to cctx_init */
1142 cctx_prepare (aTHX_ (coro_cctx *)arg); 1458 cctx_prepare (aTHX);
1143 1459
1144 /* cctx_run is the alternative tail of transfer() */ 1460 /* cctx_run is the alternative tail of transfer() */
1145 transfer_tail (aTHX); 1461 transfer_tail (aTHX);
1146 1462
1147 /* 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 */
1148 PL_restartop = PL_op; 1464 PL_restartop = PL_op;
1149 perl_run (PL_curinterp); 1465 perl_run (PL_curinterp);
1150 /* 1466 /*
1151 * 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
1152 * 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.
1153 */ 1470 */
1154 1471
1155 /* 1472 /*
1156 * 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
1157 * 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)
1158 * 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
1159 * bootstrap-time "top" top_env, as we cannot restore the "main" 1476 * doing in that case. YMMV.
1160 * coroutine as Coro has no such concept
1161 */ 1477 */
1162 PL_top_env = main_top_env; 1478 perlish_exit (aTHX);
1163 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1164 } 1479 }
1165} 1480}
1166 1481
1167static coro_cctx * 1482static coro_cctx *
1168cctx_new () 1483cctx_new (void)
1169{ 1484{
1170 coro_cctx *cctx; 1485 coro_cctx *cctx;
1171 1486
1172 ++cctx_count; 1487 ++cctx_count;
1173 New (0, cctx, 1, coro_cctx); 1488 New (0, cctx, 1, coro_cctx);
… …
1179 return cctx; 1494 return cctx;
1180} 1495}
1181 1496
1182/* create a new cctx only suitable as source */ 1497/* create a new cctx only suitable as source */
1183static coro_cctx * 1498static coro_cctx *
1184cctx_new_empty () 1499cctx_new_empty (void)
1185{ 1500{
1186 coro_cctx *cctx = cctx_new (); 1501 coro_cctx *cctx = cctx_new ();
1187 1502
1188 cctx->sptr = 0; 1503 cctx->stack.sptr = 0;
1189 coro_create (&cctx->cctx, 0, 0, 0, 0); 1504 coro_create (&cctx->cctx, 0, 0, 0, 0);
1190 1505
1191 return cctx; 1506 return cctx;
1192} 1507}
1193 1508
1194/* create a new cctx suitable as destination/running a perl interpreter */ 1509/* create a new cctx suitable as destination/running a perl interpreter */
1195static coro_cctx * 1510static coro_cctx *
1196cctx_new_run () 1511cctx_new_run (void)
1197{ 1512{
1198 coro_cctx *cctx = cctx_new (); 1513 coro_cctx *cctx = cctx_new ();
1199 void *stack_start;
1200 size_t stack_size;
1201 1514
1202#if HAVE_MMAP 1515 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1203 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1204 /* mmap supposedly does allocate-on-write for us */
1205 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1206
1207 if (cctx->sptr != (void *)-1)
1208 {
1209 #if CORO_STACKGUARD
1210 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1211 #endif
1212 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1213 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1214 cctx->flags |= CC_MAPPED;
1215 } 1516 {
1216 else
1217#endif
1218 {
1219 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1220 New (0, cctx->sptr, cctx_stacksize, long);
1221
1222 if (!cctx->sptr)
1223 {
1224 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1517 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1225 _exit (EXIT_FAILURE); 1518 _exit (EXIT_FAILURE);
1226 }
1227
1228 stack_start = cctx->sptr;
1229 stack_size = cctx->ssize;
1230 } 1519 }
1231 1520
1232 #if CORO_USE_VALGRIND
1233 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1234 #endif
1235
1236 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);
1237 1522
1238 return cctx; 1523 return cctx;
1239} 1524}
1240 1525
1241static void 1526static void
1242cctx_destroy (coro_cctx *cctx) 1527cctx_destroy (coro_cctx *cctx)
1243{ 1528{
1244 if (!cctx) 1529 if (!cctx)
1245 return; 1530 return;
1246 1531
1532 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1533
1247 --cctx_count; 1534 --cctx_count;
1248 coro_destroy (&cctx->cctx); 1535 coro_destroy (&cctx->cctx);
1249 1536
1250 /* coro_transfer creates new, empty cctx's */ 1537 coro_stack_free (&cctx->stack);
1251 if (cctx->sptr)
1252 {
1253 #if CORO_USE_VALGRIND
1254 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1255 #endif
1256
1257#if HAVE_MMAP
1258 if (cctx->flags & CC_MAPPED)
1259 munmap (cctx->sptr, cctx->ssize);
1260 else
1261#endif
1262 Safefree (cctx->sptr);
1263 }
1264 1538
1265 Safefree (cctx); 1539 Safefree (cctx);
1266} 1540}
1267 1541
1268/* wether this cctx should be destructed */ 1542/* wether this cctx should be destructed */
1269#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))
1270 1544
1271static coro_cctx * 1545static coro_cctx *
1272cctx_get (pTHX) 1546cctx_get (pTHX)
1273{ 1547{
1274 while (expect_true (cctx_first)) 1548 while (ecb_expect_true (cctx_first))
1275 { 1549 {
1276 coro_cctx *cctx = cctx_first; 1550 coro_cctx *cctx = cctx_first;
1277 cctx_first = cctx->next; 1551 cctx_first = cctx->next;
1278 --cctx_idle; 1552 --cctx_idle;
1279 1553
1280 if (expect_true (!CCTX_EXPIRED (cctx))) 1554 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1281 return cctx; 1555 return cctx;
1282 1556
1283 cctx_destroy (cctx); 1557 cctx_destroy (cctx);
1284 } 1558 }
1285 1559
… …
1287} 1561}
1288 1562
1289static void 1563static void
1290cctx_put (coro_cctx *cctx) 1564cctx_put (coro_cctx *cctx)
1291{ 1565{
1292 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));
1293 1567
1294 /* free another cctx if overlimit */ 1568 /* free another cctx if overlimit */
1295 if (expect_false (cctx_idle >= cctx_max_idle)) 1569 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1296 { 1570 {
1297 coro_cctx *first = cctx_first; 1571 coro_cctx *first = cctx_first;
1298 cctx_first = first->next; 1572 cctx_first = first->next;
1299 --cctx_idle; 1573 --cctx_idle;
1300 1574
… …
1311static void 1585static void
1312transfer_check (pTHX_ struct coro *prev, struct coro *next) 1586transfer_check (pTHX_ struct coro *prev, struct coro *next)
1313{ 1587{
1314 /* TODO: throwing up here is considered harmful */ 1588 /* TODO: throwing up here is considered harmful */
1315 1589
1316 if (expect_true (prev != next)) 1590 if (ecb_expect_true (prev != next))
1317 { 1591 {
1318 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1592 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1319 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,");
1320 1594
1321 if (expect_false (next->flags & CF_RUNNING)) 1595 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1322 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1323
1324 if (expect_false (next->flags & CF_DESTROYED))
1325 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,");
1326 1597
1327#if !PERL_VERSION_ATLEAST (5,10,0) 1598#if !PERL_VERSION_ATLEAST (5,10,0)
1328 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1599 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1329 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,");
1330#endif 1601#endif
1331 } 1602 }
1332} 1603}
1333 1604
1334/* always use the TRANSFER macro */ 1605/* always use the TRANSFER macro */
1335static void NOINLINE /* noinline so we have a fixed stackframe */ 1606static void ecb_noinline /* noinline so we have a fixed stackframe */
1336transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1607transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1337{ 1608{
1338 dSTACKLEVEL; 1609 dSTACKLEVEL;
1339 1610
1340 /* sometimes transfer is only called to set idle_sp */ 1611 /* sometimes transfer is only called to set idle_sp */
1341 if (expect_false (!next)) 1612 if (ecb_expect_false (!prev))
1342 { 1613 {
1343 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1614 cctx_current->idle_sp = STACKLEVEL;
1344 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 */
1345 } 1616 }
1346 else if (expect_true (prev != next)) 1617 else if (ecb_expect_true (prev != next))
1347 { 1618 {
1348 coro_cctx *prev__cctx; 1619 coro_cctx *cctx_prev;
1349 1620
1350 if (expect_false (prev->flags & CF_NEW)) 1621 if (ecb_expect_false (prev->flags & CF_NEW))
1351 { 1622 {
1352 /* create a new empty/source context */ 1623 /* create a new empty/source context */
1353 prev->cctx = cctx_new_empty ();
1354 prev->flags &= ~CF_NEW; 1624 prev->flags &= ~CF_NEW;
1355 prev->flags |= CF_RUNNING; 1625 prev->flags |= CF_RUNNING;
1356 } 1626 }
1357 1627
1358 prev->flags &= ~CF_RUNNING; 1628 prev->flags &= ~CF_RUNNING;
1359 next->flags |= CF_RUNNING; 1629 next->flags |= CF_RUNNING;
1360 1630
1361 /* first get rid of the old state */ 1631 /* first get rid of the old state */
1362 save_perl (aTHX_ prev); 1632 save_perl (aTHX_ prev);
1363 1633
1364 if (expect_false (next->flags & CF_NEW)) 1634 if (ecb_expect_false (next->flags & CF_NEW))
1365 { 1635 {
1366 /* need to start coroutine */ 1636 /* need to start coroutine */
1367 next->flags &= ~CF_NEW; 1637 next->flags &= ~CF_NEW;
1368 /* setup coroutine call */ 1638 /* setup coroutine call */
1369 coro_setup (aTHX_ next); 1639 init_perl (aTHX_ next);
1370 } 1640 }
1371 else 1641 else
1372 load_perl (aTHX_ next); 1642 load_perl (aTHX_ next);
1373 1643
1374 prev__cctx = prev->cctx;
1375
1376 /* possibly untie and reuse the cctx */ 1644 /* possibly untie and reuse the cctx */
1377 if (expect_true ( 1645 if (ecb_expect_true (
1378 prev__cctx->idle_sp == STACKLEVEL 1646 cctx_current->idle_sp == STACKLEVEL
1379 && !(prev__cctx->flags & CC_TRACE) 1647 && !(cctx_current->flags & CC_TRACE)
1380 && !force_cctx 1648 && !force_cctx
1381 )) 1649 ))
1382 { 1650 {
1383 /* 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 */
1384 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));
1385 1653
1386 prev->cctx = 0;
1387
1388 /* 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. */
1389 /* 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 */
1390 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1656 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1391 if (!next->cctx) 1657 if (ecb_expect_true (!next->cctx))
1392 next->cctx = cctx_get (aTHX); 1658 next->cctx = cctx_get (aTHX);
1393 1659
1394 cctx_put (prev__cctx); 1660 cctx_put (cctx_current);
1395 } 1661 }
1662 else
1663 prev->cctx = cctx_current;
1396 1664
1397 ++next->usecount; 1665 ++next->usecount;
1398 1666
1399 if (expect_true (!next->cctx)) 1667 cctx_prev = cctx_current;
1400 next->cctx = cctx_get (aTHX); 1668 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1401 1669
1402 if (expect_false (prev__cctx != next->cctx)) 1670 next->cctx = 0;
1671
1672 if (ecb_expect_false (cctx_prev != cctx_current))
1403 { 1673 {
1404 prev__cctx->top_env = PL_top_env; 1674 cctx_prev->top_env = PL_top_env;
1405 PL_top_env = next->cctx->top_env; 1675 PL_top_env = cctx_current->top_env;
1406 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1676 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1407 } 1677 }
1408 1678
1409 transfer_tail (aTHX); 1679 transfer_tail (aTHX);
1410 } 1680 }
1411} 1681}
… …
1413#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))
1414#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1684#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1415 1685
1416/** high level stuff ********************************************************/ 1686/** high level stuff ********************************************************/
1417 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 */
1418static int 1690static void
1691coro_call_on_destroy (pTHX_ struct coro *coro);
1692
1693static void
1419coro_state_destroy (pTHX_ struct coro *coro) 1694coro_state_destroy (pTHX_ struct coro *coro)
1420{ 1695{
1421 if (coro->flags & CF_DESTROYED) 1696 if (coro->flags & CF_ZOMBIE)
1422 return 0; 1697 return;
1423 1698
1424 if (coro->on_destroy)
1425 coro->on_destroy (aTHX_ coro); 1699 slf_destroy (aTHX_ coro);
1426 1700
1427 coro->flags |= CF_DESTROYED; 1701 coro->flags |= CF_ZOMBIE;
1428 1702
1429 if (coro->flags & CF_READY) 1703 if (coro->flags & CF_READY)
1430 { 1704 {
1431 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1705 /* reduce nready, as destroying a ready coro effectively unreadies it */
1432 /* alternative: look through all ready queues and remove the coro */ 1706 /* alternative: look through all ready queues and remove the coro */
1433 --coro_nready; 1707 --coro_nready;
1434 } 1708 }
1435 else 1709 else
1436 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 */
1437 1711
1438 if (coro->mainstack && coro->mainstack != main_mainstack) 1712 if (coro->next) coro->next->prev = coro->prev;
1439 { 1713 if (coro->prev) coro->prev->next = coro->next;
1440 struct coro temp; 1714 if (coro == coro_first) coro_first = coro->next;
1441 1715
1442 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1716 if (coro->mainstack
1443 1717 && coro->mainstack != main_mainstack
1444 save_perl (aTHX_ &temp); 1718 && coro->slot
1719 && !PL_dirty)
1445 load_perl (aTHX_ coro); 1720 destroy_perl (aTHX_ coro);
1446
1447 coro_destruct (aTHX_ coro);
1448
1449 load_perl (aTHX_ &temp);
1450
1451 coro->slot = 0;
1452 }
1453 1721
1454 cctx_destroy (coro->cctx); 1722 cctx_destroy (coro->cctx);
1455 SvREFCNT_dec (coro->startcv); 1723 SvREFCNT_dec (coro->startcv);
1456 SvREFCNT_dec (coro->args); 1724 SvREFCNT_dec (coro->args);
1725 SvREFCNT_dec (coro->swap_sv);
1457 SvREFCNT_dec (CORO_THROW); 1726 SvREFCNT_dec (CORO_THROW);
1458 1727
1459 if (coro->next) coro->next->prev = coro->prev; 1728 coro_call_on_destroy (aTHX_ coro);
1460 if (coro->prev) coro->prev->next = coro->next;
1461 if (coro == coro_first) coro_first = coro->next;
1462 1729
1463 return 1; 1730 /* more destruction mayhem in coro_state_free */
1464} 1731}
1465 1732
1466static int 1733static int
1467coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1734coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1468{ 1735{
1469 struct coro *coro = (struct coro *)mg->mg_ptr; 1736 struct coro *coro = (struct coro *)mg->mg_ptr;
1470 mg->mg_ptr = 0; 1737 mg->mg_ptr = 0;
1471 1738
1472 coro->hv = 0;
1473
1474 if (--coro->refcnt < 0)
1475 {
1476 coro_state_destroy (aTHX_ coro); 1739 coro_state_destroy (aTHX_ coro);
1740 SvREFCNT_dec (coro->on_destroy);
1741 SvREFCNT_dec (coro->status);
1742
1477 Safefree (coro); 1743 Safefree (coro);
1478 }
1479 1744
1480 return 0; 1745 return 0;
1481} 1746}
1482 1747
1483static int 1748static int ecb_cold
1484coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1749coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1485{ 1750{
1486 struct coro *coro = (struct coro *)mg->mg_ptr; 1751 /* called when perl clones the current process the slow way (windows process emulation) */
1487 1752 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1488 ++coro->refcnt; 1753 mg->mg_ptr = 0;
1754 mg->mg_virtual = 0;
1489 1755
1490 return 0; 1756 return 0;
1491} 1757}
1492 1758
1493static MGVTBL coro_state_vtbl = { 1759static MGVTBL coro_state_vtbl = {
… …
1516 1782
1517 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1783 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1518 TRANSFER (ta, 1); 1784 TRANSFER (ta, 1);
1519} 1785}
1520 1786
1521/*****************************************************************************/
1522/* gensub: simple closure generation utility */
1523
1524#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1525
1526/* create a closure from XS, returns a code reference */
1527/* the arg can be accessed via GENSUB_ARG from the callback */
1528/* the callback must use dXSARGS/XSRETURN */
1529static SV *
1530gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1531{
1532 CV *cv = (CV *)newSV (0);
1533
1534 sv_upgrade ((SV *)cv, SVt_PVCV);
1535
1536 CvANON_on (cv);
1537 CvISXSUB_on (cv);
1538 CvXSUB (cv) = xsub;
1539 GENSUB_ARG = arg;
1540
1541 return newRV_noinc ((SV *)cv);
1542}
1543
1544/** Coro ********************************************************************/ 1787/** Coro ********************************************************************/
1545 1788
1546INLINE void 1789ecb_inline void
1547coro_enq (pTHX_ struct coro *coro) 1790coro_enq (pTHX_ struct coro *coro)
1548{ 1791{
1549 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1792 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1550}
1551 1793
1552INLINE 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 *
1553coro_deq (pTHX) 1802coro_deq (pTHX)
1554{ 1803{
1555 int prio; 1804 int prio;
1556 1805
1557 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1806 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1558 if (AvFILLp (coro_ready [prio]) >= 0) 1807 {
1559 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 }
1560 1817
1561 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;
1562} 1836}
1563 1837
1564static int 1838static int
1565api_ready (pTHX_ SV *coro_sv) 1839api_ready (pTHX_ SV *coro_sv)
1566{ 1840{
1567 struct coro *coro;
1568 SV *sv_hook;
1569 void (*xs_hook)(void);
1570
1571 if (SvROK (coro_sv))
1572 coro_sv = SvRV (coro_sv);
1573
1574 coro = SvSTATE (coro_sv); 1841 struct coro *coro = SvSTATE (coro_sv);
1575 1842
1576 if (coro->flags & CF_READY) 1843 if (coro->flags & CF_READY)
1577 return 0; 1844 return 0;
1578 1845
1579 coro->flags |= CF_READY; 1846 coro->flags |= CF_READY;
1580 1847
1581 sv_hook = coro_nready ? 0 : coro_readyhook;
1582 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1583
1584 coro_enq (aTHX_ coro); 1848 coro_enq (aTHX_ coro);
1585 ++coro_nready;
1586 1849
1587 if (sv_hook) 1850 if (!coro_nready++)
1588 { 1851 if (coroapi.readyhook)
1589 dSP; 1852 coroapi.readyhook ();
1590
1591 ENTER;
1592 SAVETMPS;
1593
1594 PUSHMARK (SP);
1595 PUTBACK;
1596 call_sv (sv_hook, G_VOID | G_DISCARD);
1597
1598 FREETMPS;
1599 LEAVE;
1600 }
1601
1602 if (xs_hook)
1603 xs_hook ();
1604 1853
1605 return 1; 1854 return 1;
1606} 1855}
1607 1856
1608static int 1857static int
1609api_is_ready (pTHX_ SV *coro_sv) 1858api_is_ready (pTHX_ SV *coro_sv)
1610{ 1859{
1611 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1860 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1612} 1861}
1613 1862
1614INLINE void 1863/* expects to own a reference to next->hv */
1864ecb_inline void
1615prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1865prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1616{ 1866{
1617 SV *prev_sv, *next_sv;
1618
1619 for (;;)
1620 {
1621 next_sv = coro_deq (aTHX);
1622
1623 /* nothing to schedule: call the idle handler */
1624 if (expect_false (!next_sv))
1625 {
1626 dSP;
1627
1628 ENTER;
1629 SAVETMPS;
1630
1631 PUSHMARK (SP);
1632 PUTBACK;
1633 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1634
1635 FREETMPS;
1636 LEAVE;
1637 continue;
1638 }
1639
1640 ta->next = SvSTATE_hv (next_sv);
1641
1642 /* cannot transfer to destroyed coros, skip and look for next */
1643 if (expect_false (ta->next->flags & CF_DESTROYED))
1644 {
1645 SvREFCNT_dec (next_sv);
1646 /* coro_nready has already been taken care of by destroy */
1647 continue;
1648 }
1649
1650 --coro_nready;
1651 break;
1652 }
1653
1654 /* free this only after the transfer */
1655 prev_sv = SvRV (coro_current); 1867 SV *prev_sv = SvRV (coro_current);
1868
1656 ta->prev = SvSTATE_hv (prev_sv); 1869 ta->prev = SvSTATE_hv (prev_sv);
1870 ta->next = next;
1871
1657 TRANSFER_CHECK (*ta); 1872 TRANSFER_CHECK (*ta);
1658 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1873
1659 ta->next->flags &= ~CF_READY;
1660 SvRV_set (coro_current, next_sv); 1874 SvRV_set (coro_current, (SV *)next->hv);
1661 1875
1662 free_coro_mortal (aTHX); 1876 free_coro_mortal (aTHX);
1663 coro_mortal = prev_sv; 1877 coro_mortal = prev_sv;
1664} 1878}
1665 1879
1666INLINE void 1880static void
1881prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1882{
1883 for (;;)
1884 {
1885 struct coro *next = coro_deq (aTHX);
1886
1887 if (ecb_expect_true (next))
1888 {
1889 /* cannot transfer to destroyed coros, skip and look for next */
1890 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1891 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1892 else
1893 {
1894 next->flags &= ~CF_READY;
1895 --coro_nready;
1896
1897 prepare_schedule_to (aTHX_ ta, next);
1898 break;
1899 }
1900 }
1901 else
1902 {
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*/
1917 dSP;
1918
1919 ENTER;
1920 SAVETMPS;
1921
1922 PUSHMARK (SP);
1923 PUTBACK;
1924 call_sv (sv_idle, G_VOID | G_DISCARD);
1925
1926 FREETMPS;
1927 LEAVE;
1928 }
1929 }
1930 }
1931}
1932
1933ecb_inline void
1667prepare_cede (pTHX_ struct coro_transfer_args *ta) 1934prepare_cede (pTHX_ struct coro_transfer_args *ta)
1668{ 1935{
1669 api_ready (aTHX_ coro_current); 1936 api_ready (aTHX_ coro_current);
1670 prepare_schedule (aTHX_ ta); 1937 prepare_schedule (aTHX_ ta);
1671} 1938}
1672 1939
1673INLINE void 1940ecb_inline void
1674prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1941prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1675{ 1942{
1676 SV *prev = SvRV (coro_current); 1943 SV *prev = SvRV (coro_current);
1677 1944
1678 if (coro_nready) 1945 if (coro_nready)
… …
1691 1958
1692 prepare_schedule (aTHX_ &ta); 1959 prepare_schedule (aTHX_ &ta);
1693 TRANSFER (ta, 1); 1960 TRANSFER (ta, 1);
1694} 1961}
1695 1962
1963static void
1964api_schedule_to (pTHX_ SV *coro_sv)
1965{
1966 struct coro_transfer_args ta;
1967 struct coro *next = SvSTATE (coro_sv);
1968
1969 SvREFCNT_inc_NN (coro_sv);
1970 prepare_schedule_to (aTHX_ &ta, next);
1971}
1972
1696static int 1973static int
1697api_cede (pTHX) 1974api_cede (pTHX)
1698{ 1975{
1699 struct coro_transfer_args ta; 1976 struct coro_transfer_args ta;
1700 1977
1701 prepare_cede (aTHX_ &ta); 1978 prepare_cede (aTHX_ &ta);
1702 1979
1703 if (expect_true (ta.prev != ta.next)) 1980 if (ecb_expect_true (ta.prev != ta.next))
1704 { 1981 {
1705 TRANSFER (ta, 1); 1982 TRANSFER (ta, 1);
1706 return 1; 1983 return 1;
1707 } 1984 }
1708 else 1985 else
… …
1727static void 2004static void
1728api_trace (pTHX_ SV *coro_sv, int flags) 2005api_trace (pTHX_ SV *coro_sv, int flags)
1729{ 2006{
1730 struct coro *coro = SvSTATE (coro_sv); 2007 struct coro *coro = SvSTATE (coro_sv);
1731 2008
2009 if (coro->flags & CF_RUNNING)
2010 croak ("cannot enable tracing on a running coroutine, caught");
2011
1732 if (flags & CC_TRACE) 2012 if (flags & CC_TRACE)
1733 { 2013 {
1734 if (!coro->cctx) 2014 if (!coro->cctx)
1735 coro->cctx = cctx_new_run (); 2015 coro->cctx = cctx_new_run ();
1736 else if (!(coro->cctx->flags & CC_TRACE)) 2016 else if (!(coro->cctx->flags & CC_TRACE))
1737 croak ("cannot enable tracing on coroutine with custom stack,"); 2017 croak ("cannot enable tracing on coroutine with custom stack, caught");
1738 2018
1739 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2019 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1740 } 2020 }
1741 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2021 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1742 { 2022 {
… …
1745 if (coro->flags & CF_RUNNING) 2025 if (coro->flags & CF_RUNNING)
1746 PL_runops = RUNOPS_DEFAULT; 2026 PL_runops = RUNOPS_DEFAULT;
1747 else 2027 else
1748 coro->slot->runops = RUNOPS_DEFAULT; 2028 coro->slot->runops = RUNOPS_DEFAULT;
1749 } 2029 }
2030}
2031
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
2109coro_call_on_destroy (pTHX_ struct coro *coro)
2110{
2111 AV *od = coro->on_destroy;
2112
2113 if (!od)
2114 return;
2115
2116 coro->on_destroy = 0;
2117 sv_2mortal ((SV *)od);
2118
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
2127 {
2128 dSP; /* don't disturb outer sp */
2129 PUSHMARK (SP);
2130
2131 if (coro->status)
2132 {
2133 PUTBACK;
2134 coro_push_av (aTHX_ coro->status, G_ARRAY);
2135 SPAGAIN;
2136 }
2137
2138 PUTBACK;
2139 call_sv (cb, G_VOID | G_DISCARD);
2140 }
2141 }
2142}
2143
2144static void
2145coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
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 {
2160 int i;
2161
2162 av_extend (av, items - 1);
2163
2164 for (i = 0; i < items; ++i)
2165 av_push (av, SvREFCNT_inc_NN (arg [i]));
2166 }
2167}
2168
2169static void
2170slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2171{
2172 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2173 api_ready (aTHX_ sv_manager);
2174
2175 frame->prepare = prepare_schedule;
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;
1750} 2284}
1751 2285
1752/*****************************************************************************/ 2286/*****************************************************************************/
1753/* async pool handler */ 2287/* async pool handler */
1754 2288
… …
1785slf_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)
1786{ 2320{
1787 HV *hv = (HV *)SvRV (coro_current); 2321 HV *hv = (HV *)SvRV (coro_current);
1788 struct coro *coro = SvSTATE_hv ((SV *)hv); 2322 struct coro *coro = SvSTATE_hv ((SV *)hv);
1789 2323
1790 if (expect_true (coro->saved_deffh)) 2324 if (ecb_expect_true (coro->saved_deffh))
1791 { 2325 {
1792 /* subsequent iteration */ 2326 /* subsequent iteration */
1793 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2327 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1794 coro->saved_deffh = 0; 2328 coro->saved_deffh = 0;
1795 2329
1796 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2330 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1797 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2331 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1798 { 2332 {
1799 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2333 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1800 coro->invoke_av = newAV (); 2334 return;
1801
1802 frame->prepare = prepare_nop;
1803 } 2335 }
1804 else 2336 else
1805 { 2337 {
1806 av_clear (GvAV (PL_defgv)); 2338 av_clear (GvAV (PL_defgv));
1807 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);
… …
1832 2364
1833static void 2365static void
1834coro_rouse_callback (pTHX_ CV *cv) 2366coro_rouse_callback (pTHX_ CV *cv)
1835{ 2367{
1836 dXSARGS; 2368 dXSARGS;
1837 SV *data = (SV *)GENSUB_ARG; 2369 SV *data = (SV *)S_GENSUB_ARG;
1838 2370
1839 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2371 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1840 { 2372 {
1841 /* first call, set args */ 2373 /* first call, set args */
2374 SV *coro = SvRV (data);
1842 AV *av = newAV (); 2375 AV *av = newAV ();
1843 SV *coro = SvRV (data);
1844 2376
1845 SvRV_set (data, (SV *)av); 2377 SvRV_set (data, (SV *)av);
1846 api_ready (aTHX_ coro);
1847 SvREFCNT_dec (coro);
1848 2378
1849 /* better take a full copy of the arguments */ 2379 /* better take a full copy of the arguments */
1850 while (items--) 2380 while (items--)
1851 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);
1852 } 2385 }
1853 2386
1854 XSRETURN_EMPTY; 2387 XSRETURN_EMPTY;
1855} 2388}
1856 2389
1857static int 2390static int
1858slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2391slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1859{ 2392{
1860 SV *data = (SV *)frame->data; 2393 SV *data = (SV *)frame->data;
1861 2394
1862 if (CORO_THROW) 2395 if (CORO_THROW)
1863 return 0; 2396 return 0;
1864 2397
1865 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2398 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1866 return 1; 2399 return 1;
… …
1873 2406
1874 EXTEND (SP, AvFILLp (av) + 1); 2407 EXTEND (SP, AvFILLp (av) + 1);
1875 for (i = 0; i <= AvFILLp (av); ++i) 2408 for (i = 0; i <= AvFILLp (av); ++i)
1876 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2409 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1877 2410
1878 /* 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 */
1879 AvFILLp (av) = -1; 2412 AvFILLp (av) = -1;
1880 av_undef (av); 2413 av_undef (av);
1881 2414
1882 PUTBACK; 2415 PUTBACK;
1883 } 2416 }
… …
1902 cb = sv_2mortal (coro->rouse_cb); 2435 cb = sv_2mortal (coro->rouse_cb);
1903 coro->rouse_cb = 0; 2436 coro->rouse_cb = 0;
1904 } 2437 }
1905 2438
1906 if (!SvROK (cb) 2439 if (!SvROK (cb)
1907 || SvTYPE (SvRV (cb)) != SVt_PVCV 2440 || SvTYPE (SvRV (cb)) != SVt_PVCV
1908 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2441 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1909 croak ("Coro::rouse_wait called with illegal callback argument,"); 2442 croak ("Coro::rouse_wait called with illegal callback argument,");
1910 2443
1911 { 2444 {
1912 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2445 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1913 SV *data = (SV *)GENSUB_ARG; 2446 SV *data = (SV *)S_GENSUB_ARG;
1914 2447
1915 frame->data = (void *)data; 2448 frame->data = (void *)data;
1916 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2449 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1917 frame->check = slf_check_rouse_wait; 2450 frame->check = slf_check_rouse_wait;
1918 } 2451 }
… …
1922coro_new_rouse_cb (pTHX) 2455coro_new_rouse_cb (pTHX)
1923{ 2456{
1924 HV *hv = (HV *)SvRV (coro_current); 2457 HV *hv = (HV *)SvRV (coro_current);
1925 struct coro *coro = SvSTATE_hv (hv); 2458 struct coro *coro = SvSTATE_hv (hv);
1926 SV *data = newRV_inc ((SV *)hv); 2459 SV *data = newRV_inc ((SV *)hv);
1927 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2460 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1928 2461
1929 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);
1930 SvREFCNT_dec (data); /* magicext increases the refcount */ 2463 SvREFCNT_dec (data); /* magicext increases the refcount */
1931 2464
1932 SvREFCNT_dec (coro->rouse_cb); 2465 SvREFCNT_dec (coro->rouse_cb);
… …
1990 frame->prepare = prepare_schedule; 2523 frame->prepare = prepare_schedule;
1991 frame->check = slf_check_nop; 2524 frame->check = slf_check_nop;
1992} 2525}
1993 2526
1994static void 2527static void
2528slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2529{
2530 struct coro *next = (struct coro *)slf_frame.data;
2531
2532 SvREFCNT_inc_NN (next->hv);
2533 prepare_schedule_to (aTHX_ ta, next);
2534}
2535
2536static void
2537slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2538{
2539 if (!items)
2540 croak ("Coro::schedule_to expects a coroutine argument, caught");
2541
2542 frame->data = (void *)SvSTATE (arg [0]);
2543 frame->prepare = slf_prepare_schedule_to;
2544 frame->check = slf_check_nop;
2545}
2546
2547static void
2548slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2549{
2550 api_ready (aTHX_ SvRV (coro_current));
2551
2552 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2553}
2554
2555static void
1995slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2556slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1996{ 2557{
1997 frame->prepare = prepare_cede; 2558 frame->prepare = prepare_cede;
1998 frame->check = slf_check_nop; 2559 frame->check = slf_check_nop;
1999} 2560}
… …
2001static void 2562static void
2002slf_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)
2003{ 2564{
2004 frame->prepare = prepare_cede_notself; 2565 frame->prepare = prepare_cede_notself;
2005 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;
2006} 2584}
2007 2585
2008/* 2586/*
2009 * these not obviously related functions are all rolled into one 2587 * these not obviously related functions are all rolled into one
2010 * 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
… …
2017 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 */
2018 2596
2019 /* 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 */
2020 /* the latter happens when a new coro has been started */ 2598 /* the latter happens when a new coro has been started */
2021 /* or when a new cctx was attached to an existing coroutine */ 2599 /* or when a new cctx was attached to an existing coroutine */
2022 if (expect_true (!slf_frame.prepare)) 2600 if (ecb_expect_true (!slf_frame.prepare))
2023 { 2601 {
2024 /* first iteration */ 2602 /* first iteration */
2025 dSP; 2603 dSP;
2026 SV **arg = PL_stack_base + TOPMARK + 1; 2604 SV **arg = PL_stack_base + TOPMARK + 1;
2027 int items = SP - arg; /* args without function object */ 2605 int items = SP - arg; /* args without function object */
… …
2068 while (slf_frame.check (aTHX_ &slf_frame)); 2646 while (slf_frame.check (aTHX_ &slf_frame));
2069 2647
2070 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 */
2071 2649
2072 /* exception handling */ 2650 /* exception handling */
2073 if (expect_false (CORO_THROW)) 2651 if (ecb_expect_false (CORO_THROW))
2074 { 2652 {
2075 SV *exception = sv_2mortal (CORO_THROW); 2653 SV *exception = sv_2mortal (CORO_THROW);
2076 2654
2077 CORO_THROW = 0; 2655 CORO_THROW = 0;
2078 sv_setsv (ERRSV, exception); 2656 sv_setsv (ERRSV, exception);
2079 croak (0); 2657 croak (0);
2080 } 2658 }
2081 2659
2082 /* return value handling - mostly like entersub */ 2660 /* return value handling - mostly like entersub */
2083 /* make sure we put something on the stack in scalar context */ 2661 /* make sure we put something on the stack in scalar context */
2084 if (GIMME_V == G_SCALAR) 2662 if (GIMME_V == G_SCALAR
2663 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2085 { 2664 {
2086 dSP; 2665 dSP;
2087 SV **bot = PL_stack_base + checkmark; 2666 SV **bot = PL_stack_base + checkmark;
2088 2667
2089 if (sp == bot) /* too few, push undef */ 2668 if (sp == bot) /* too few, push undef */
2090 bot [1] = &PL_sv_undef; 2669 bot [1] = &PL_sv_undef;
2091 else if (sp != bot + 1) /* too many, take last one */ 2670 else /* too many, take last one */
2092 bot [1] = *sp; 2671 bot [1] = *sp;
2093 2672
2094 SP = bot + 1; 2673 SP = bot + 1;
2095 2674
2096 PUTBACK; 2675 PUTBACK;
… …
2129 if (PL_op->op_flags & OPf_STACKED) 2708 if (PL_op->op_flags & OPf_STACKED)
2130 { 2709 {
2131 if (items > slf_arga) 2710 if (items > slf_arga)
2132 { 2711 {
2133 slf_arga = items; 2712 slf_arga = items;
2134 free (slf_argv); 2713 Safefree (slf_argv);
2135 slf_argv = malloc (slf_arga * sizeof (SV *)); 2714 New (0, slf_argv, slf_arga, SV *);
2136 } 2715 }
2137 2716
2138 slf_argc = items; 2717 slf_argc = items;
2139 2718
2140 for (i = 0; i < items; ++i) 2719 for (i = 0; i < items; ++i)
… …
2142 } 2721 }
2143 else 2722 else
2144 slf_argc = 0; 2723 slf_argc = 0;
2145 2724
2146 PL_op->op_ppaddr = pp_slf; 2725 PL_op->op_ppaddr = pp_slf;
2147 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2726 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2148 2727
2149 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));
2150} 2776}
2151 2777
2152/*****************************************************************************/ 2778/*****************************************************************************/
2153/* PerlIO::cede */ 2779/* PerlIO::cede */
2154 2780
… …
2156{ 2782{
2157 PerlIOBuf base; 2783 PerlIOBuf base;
2158 NV next, every; 2784 NV next, every;
2159} PerlIOCede; 2785} PerlIOCede;
2160 2786
2161static IV 2787static IV ecb_cold
2162PerlIOCede_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)
2163{ 2789{
2164 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2790 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2165 2791
2166 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2792 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2167 self->next = nvtime () + self->every; 2793 self->next = nvtime () + self->every;
2168 2794
2169 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2795 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2170} 2796}
2171 2797
2172static SV * 2798static SV * ecb_cold
2173PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2799PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2174{ 2800{
2175 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2801 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2176 2802
2177 return newSVnv (self->every); 2803 return newSVnv (self->every);
… …
2228/* Coro::Semaphore & Coro::Signal */ 2854/* Coro::Semaphore & Coro::Signal */
2229 2855
2230static SV * 2856static SV *
2231coro_waitarray_new (pTHX_ int count) 2857coro_waitarray_new (pTHX_ int count)
2232{ 2858{
2233 /* 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 */
2234 AV *av = newAV (); 2860 AV *av = newAV ();
2235 SV **ary; 2861 SV **ary;
2236 2862
2237 /* unfortunately, building manually saves memory */ 2863 /* unfortunately, building manually saves memory */
2238 Newx (ary, 2, SV *); 2864 Newx (ary, 2, SV *);
2239 AvALLOC (av) = ary; 2865 AvALLOC (av) = ary;
2866#if PERL_VERSION_ATLEAST (5,10,0)
2240 /*AvARRAY (av) = ary;*/ 2867 AvARRAY (av) = ary;
2868#else
2241 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
2242 AvMAX (av) = 1; 2873 AvMAX (av) = 1;
2243 AvFILLp (av) = 0; 2874 AvFILLp (av) = 0;
2244 ary [0] = newSViv (count); 2875 ary [0] = newSViv (count);
2245 2876
2246 return newRV_noinc ((SV *)av); 2877 return newRV_noinc ((SV *)av);
… …
2284 SvREFCNT_dec (cb); 2915 SvREFCNT_dec (cb);
2285 } 2916 }
2286} 2917}
2287 2918
2288static void 2919static void
2289coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2920coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2290{ 2921{
2291 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2922 /* call $sem->adjust (0) to possibly wake up some other waiters */
2292 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2923 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2293} 2924}
2294 2925
2295static int 2926static int
2296slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2927slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2297{ 2928{
2298 AV *av = (AV *)frame->data; 2929 AV *av = (AV *)frame->data;
2299 SV *count_sv = AvARRAY (av)[0]; 2930 SV *count_sv = AvARRAY (av)[0];
2931 SV *coro_hv = SvRV (coro_current);
2300 2932
2301 /* 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 */
2302 if (CORO_THROW) 2934 if (CORO_THROW)
2303 return 0; 2935 return 0;
2304 else if (SvIVX (count_sv) > 0) 2936 else if (SvIVX (count_sv) > 0)
2305 { 2937 {
2306 SvSTATE_current->on_destroy = 0; 2938 frame->destroy = 0;
2307 2939
2308 if (acquire) 2940 if (acquire)
2309 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2941 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2310 else 2942 else
2311 coro_semaphore_adjust (aTHX_ av, 0); 2943 coro_semaphore_adjust (aTHX_ av, 0);
… …
2316 { 2948 {
2317 int i; 2949 int i;
2318 /* 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 */
2319 /* 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 */
2320 /* this avoids some degenerate memory usage cases */ 2952 /* this avoids some degenerate memory usage cases */
2321 2953 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2322 for (i = 1; i <= AvFILLp (av); ++i)
2323 if (AvARRAY (av)[i] == SvRV (coro_current)) 2954 if (AvARRAY (av)[i] == coro_hv)
2324 return 1; 2955 return 1;
2325 2956
2326 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2957 av_push (av, SvREFCNT_inc (coro_hv));
2327 return 1; 2958 return 1;
2328 } 2959 }
2329} 2960}
2330 2961
2331static int 2962static int
… …
2354 { 2985 {
2355 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2986 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2356 2987
2357 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2988 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2358 frame->prepare = prepare_schedule; 2989 frame->prepare = prepare_schedule;
2359
2360 /* to avoid race conditions when a woken-up coro gets terminated */ 2990 /* to avoid race conditions when a woken-up coro gets terminated */
2361 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2991 /* we arrange for a temporary on_destroy that calls adjust (0) */
2362 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2992 frame->destroy = coro_semaphore_destroy;
2363 } 2993 }
2364} 2994}
2365 2995
2366static void 2996static void
2367slf_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)
… …
2375{ 3005{
2376 if (items >= 2) 3006 if (items >= 2)
2377 { 3007 {
2378 /* callback form */ 3008 /* callback form */
2379 AV *av = (AV *)SvRV (arg [0]); 3009 AV *av = (AV *)SvRV (arg [0]);
2380 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3010 SV *cb_cv = s_get_cv_croak (arg [1]);
2381 3011
2382 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3012 av_push (av, SvREFCNT_inc_NN (cb_cv));
2383 3013
2384 if (SvIVX (AvARRAY (av)[0]) > 0) 3014 if (SvIVX (AvARRAY (av)[0]) > 0)
2385 coro_semaphore_adjust (aTHX_ av, 0); 3015 coro_semaphore_adjust (aTHX_ av, 0);
2386 3016
2387 frame->prepare = prepare_nop; 3017 frame->prepare = prepare_nop;
… …
2411 AvARRAY (av)[0] = AvARRAY (av)[1]; 3041 AvARRAY (av)[0] = AvARRAY (av)[1];
2412 AvARRAY (av)[1] = cb; 3042 AvARRAY (av)[1] = cb;
2413 3043
2414 cb = av_shift (av); 3044 cb = av_shift (av);
2415 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 {
2416 api_ready (aTHX_ cb); 3056 api_ready (aTHX_ cb);
2417 sv_setiv (cb, 0); /* signal waiter */ 3057 sv_setiv (cb, 0); /* signal waiter */
3058 }
3059
2418 SvREFCNT_dec (cb); 3060 SvREFCNT_dec (cb);
2419 3061
2420 --count; 3062 --count;
2421 } 3063 }
2422} 3064}
… …
2431static void 3073static void
2432slf_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)
2433{ 3075{
2434 AV *av = (AV *)SvRV (arg [0]); 3076 AV *av = (AV *)SvRV (arg [0]);
2435 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
2436 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]))
2437 { 3090 {
2438 SvIVX (AvARRAY (av)[0]) = 0; 3091 SvIVX (AvARRAY (av)[0]) = 0;
2439 frame->prepare = prepare_nop; 3092 frame->prepare = prepare_nop;
2440 frame->check = slf_check_nop; 3093 frame->check = slf_check_nop;
2441 } 3094 }
2442 else 3095 else
2443 { 3096 {
2444 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3097 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2445 3098
2446 av_push (av, waiter); 3099 av_push (av, waiter);
2447 3100
2448 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 */
2449 frame->prepare = prepare_schedule; 3102 frame->prepare = prepare_schedule;
… …
2467 3120
2468static void 3121static void
2469coro_aio_callback (pTHX_ CV *cv) 3122coro_aio_callback (pTHX_ CV *cv)
2470{ 3123{
2471 dXSARGS; 3124 dXSARGS;
2472 AV *state = (AV *)GENSUB_ARG; 3125 AV *state = (AV *)S_GENSUB_ARG;
2473 SV *coro = av_pop (state); 3126 SV *coro = av_pop (state);
2474 SV *data_sv = newSV (sizeof (struct io_state)); 3127 SV *data_sv = newSV (sizeof (struct io_state));
2475 3128
2476 av_extend (state, items - 1); 3129 av_extend (state, items - 1);
2477 3130
… …
2513 /* it quickly returns */ 3166 /* it quickly returns */
2514 if (CORO_THROW) 3167 if (CORO_THROW)
2515 return 0; 3168 return 0;
2516 3169
2517 /* one element that is an RV? repeat! */ 3170 /* one element that is an RV? repeat! */
2518 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3171 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2519 return 1; 3172 return 1;
2520 3173
2521 /* restore status */ 3174 /* restore status */
2522 { 3175 {
2523 SV *data_sv = av_pop (state); 3176 SV *data_sv = av_pop (state);
… …
2562 dSP; 3215 dSP;
2563 3216
2564 static SV *prio_cv; 3217 static SV *prio_cv;
2565 static SV *prio_sv; 3218 static SV *prio_sv;
2566 3219
2567 if (expect_false (!prio_cv)) 3220 if (ecb_expect_false (!prio_cv))
2568 { 3221 {
2569 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3222 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2570 prio_sv = newSViv (0); 3223 prio_sv = newSViv (0);
2571 } 3224 }
2572 3225
… …
2591 3244
2592 for (i = 0; i < items; ++i) 3245 for (i = 0; i < items; ++i)
2593 PUSHs (arg [i]); 3246 PUSHs (arg [i]);
2594 3247
2595 /* now push the callback closure */ 3248 /* now push the callback closure */
2596 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))));
2597 3250
2598 /* now call the AIO function - we assume our request is uncancelable */ 3251 /* now call the AIO function - we assume our request is uncancelable */
2599 PUTBACK; 3252 PUTBACK;
2600 call_sv ((SV *)req, G_VOID | G_DISCARD); 3253 call_sv ((SV *)req, G_VOID | G_DISCARD);
2601 } 3254 }
2602 3255
2603 /* 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 */
2604 frame->data = (void *)state; 3257 frame->data = (void *)state;
2605 frame->prepare = prepare_schedule; 3258 frame->prepare = prepare_schedule;
2606 frame->check = slf_check_aio_req; 3259 frame->check = slf_check_aio_req;
2607} 3260}
2608 3261
… …
2615 3268
2616 XSRETURN_EMPTY; 3269 XSRETURN_EMPTY;
2617} 3270}
2618 3271
2619/*****************************************************************************/ 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
2620 3402
2621MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3403MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2622 3404
2623PROTOTYPES: DISABLE 3405PROTOTYPES: DISABLE
2624 3406
… …
2627#ifdef USE_ITHREADS 3409#ifdef USE_ITHREADS
2628# if CORO_PTHREAD 3410# if CORO_PTHREAD
2629 coro_thx = PERL_GET_CONTEXT; 3411 coro_thx = PERL_GET_CONTEXT;
2630# endif 3412# endif
2631#endif 3413#endif
2632 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 ();
2633 3422
2634 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3423 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2635 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3424 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2636 3425
2637 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;
… …
2657 3446
2658 { 3447 {
2659 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3448 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2660 3449
2661 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3450 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2662 hv_store_ent (PL_custom_op_names, slf, 3451 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2663 newSVpv ("coro_slf", 0), 0);
2664 3452
2665 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3453 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2666 hv_store_ent (PL_custom_op_descs, slf, 3454 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2667 newSVpv ("coro schedule like function", 0), 0);
2668 } 3455 }
2669 3456
2670 coroapi.ver = CORO_API_VERSION; 3457 coroapi.ver = CORO_API_VERSION;
2671 coroapi.rev = CORO_API_REVISION; 3458 coroapi.rev = CORO_API_REVISION;
2672 3459
… …
2677 coroapi.prepare_nop = prepare_nop; 3464 coroapi.prepare_nop = prepare_nop;
2678 coroapi.prepare_schedule = prepare_schedule; 3465 coroapi.prepare_schedule = prepare_schedule;
2679 coroapi.prepare_cede = prepare_cede; 3466 coroapi.prepare_cede = prepare_cede;
2680 coroapi.prepare_cede_notself = prepare_cede_notself; 3467 coroapi.prepare_cede_notself = prepare_cede_notself;
2681 3468
2682 { 3469 time_init (aTHX);
2683 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2684 3470
2685 if (!svp) croak ("Time::HiRes is required");
2686 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2687
2688 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2689 }
2690
2691 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
2692} 3477}
2693 3478
2694SV * 3479SV *
2695new (char *klass, ...) 3480new (SV *klass, ...)
2696 ALIAS: 3481 ALIAS:
2697 Coro::new = 1 3482 Coro::new = 1
2698 CODE: 3483 CODE:
2699{ 3484 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2700 struct coro *coro; 3485 OUTPUT:
2701 MAGIC *mg;
2702 HV *hv;
2703 CV *cb;
2704 int i;
2705
2706 if (items > 1)
2707 {
2708 cb = coro_sv_2cv (aTHX_ ST (1));
2709
2710 if (!ix)
2711 {
2712 if (CvISXSUB (cb))
2713 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2714
2715 if (!CvROOT (cb))
2716 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2717 }
2718 }
2719
2720 Newz (0, coro, 1, struct coro);
2721 coro->args = newAV ();
2722 coro->flags = CF_NEW;
2723
2724 if (coro_first) coro_first->prev = coro;
2725 coro->next = coro_first;
2726 coro_first = coro;
2727
2728 coro->hv = hv = newHV ();
2729 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2730 mg->mg_flags |= MGf_DUP;
2731 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2732
2733 if (items > 1)
2734 {
2735 av_extend (coro->args, items - 1 + ix - 1);
2736
2737 if (ix)
2738 {
2739 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2740 cb = cv_coro_run;
2741 }
2742
2743 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2744
2745 for (i = 2; i < items; i++)
2746 av_push (coro->args, newSVsv (ST (i)));
2747 }
2748}
2749 OUTPUT:
2750 RETVAL 3486 RETVAL
2751 3487
2752void 3488void
2753transfer (...) 3489transfer (...)
2754 PROTOTYPE: $$ 3490 PROTOTYPE: $$
2755 CODE: 3491 CODE:
2756 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3492 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2757 3493
2758bool 3494SV *
2759_destroy (SV *coro_sv) 3495clone (Coro::State coro)
2760 CODE: 3496 CODE:
2761 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}
2762 OUTPUT: 3510 OUTPUT:
2763 RETVAL 3511 RETVAL
2764
2765void
2766_exit (int code)
2767 PROTOTYPE: $
2768 CODE:
2769 _exit (code);
2770 3512
2771int 3513int
2772cctx_stacksize (int new_stacksize = 0) 3514cctx_stacksize (int new_stacksize = 0)
2773 PROTOTYPE: ;$ 3515 PROTOTYPE: ;$
2774 CODE: 3516 CODE:
… …
2810void 3552void
2811list () 3553list ()
2812 PROTOTYPE: 3554 PROTOTYPE:
2813 PPCODE: 3555 PPCODE:
2814{ 3556{
2815 struct coro *coro; 3557 struct coro *coro;
2816 for (coro = coro_first; coro; coro = coro->next) 3558 for (coro = coro_first; coro; coro = coro->next)
2817 if (coro->hv) 3559 if (coro->hv)
2818 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3560 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2819} 3561}
2820 3562
… …
2824 eval = 1 3566 eval = 1
2825 CODE: 3567 CODE:
2826{ 3568{
2827 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3569 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2828 { 3570 {
2829 struct coro temp; 3571 struct coro *current = SvSTATE_current;
3572 struct CoroSLF slf_save;
2830 3573
2831 if (!(coro->flags & CF_RUNNING)) 3574 if (current != coro)
2832 { 3575 {
2833 PUTBACK; 3576 PUTBACK;
2834 save_perl (aTHX_ &temp); 3577 save_perl (aTHX_ current);
2835 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;
2836 } 3589 }
2837 3590
2838 {
2839 dSP;
2840 ENTER;
2841 SAVETMPS;
2842 PUTBACK;
2843 PUSHSTACK; 3591 PUSHSTACK;
3592
2844 PUSHMARK (SP); 3593 PUSHMARK (SP);
3594 PUTBACK;
2845 3595
2846 if (ix) 3596 if (ix)
2847 eval_sv (coderef, 0); 3597 eval_sv (coderef, 0);
2848 else 3598 else
2849 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3599 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2850 3600
2851 POPSTACK; 3601 POPSTACK;
2852 SPAGAIN; 3602 SPAGAIN;
2853 FREETMPS;
2854 LEAVE;
2855 PUTBACK;
2856 }
2857 3603
2858 if (!(coro->flags & CF_RUNNING)) 3604 if (current != coro)
2859 { 3605 {
3606 PUTBACK;
3607 slf_frame = slf_save;
2860 save_perl (aTHX_ coro); 3608 save_perl (aTHX_ coro);
2861 load_perl (aTHX_ &temp); 3609 load_perl (aTHX_ current);
2862 SPAGAIN; 3610 SPAGAIN;
2863 } 3611 }
2864 } 3612 }
2865} 3613}
2866 3614
… …
2869 PROTOTYPE: $ 3617 PROTOTYPE: $
2870 ALIAS: 3618 ALIAS:
2871 is_ready = CF_READY 3619 is_ready = CF_READY
2872 is_running = CF_RUNNING 3620 is_running = CF_RUNNING
2873 is_new = CF_NEW 3621 is_new = CF_NEW
2874 is_destroyed = CF_DESTROYED 3622 is_destroyed = CF_ZOMBIE
3623 is_zombie = CF_ZOMBIE
3624 is_suspended = CF_SUSPENDED
2875 CODE: 3625 CODE:
2876 RETVAL = boolSV (coro->flags & ix); 3626 RETVAL = boolSV (coro->flags & ix);
2877 OUTPUT: 3627 OUTPUT:
2878 RETVAL 3628 RETVAL
2879 3629
2880void 3630void
2881throw (Coro::State self, SV *throw = &PL_sv_undef) 3631throw (SV *self, SV *exception = &PL_sv_undef)
2882 PROTOTYPE: $;$ 3632 PROTOTYPE: $;$
2883 CODE: 3633 CODE:
2884{ 3634{
3635 struct coro *coro = SvSTATE (self);
2885 struct coro *current = SvSTATE_current; 3636 struct coro *current = SvSTATE_current;
2886 SV **throwp = self == current ? &CORO_THROW : &self->except; 3637 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2887 SvREFCNT_dec (*throwp); 3638 SvREFCNT_dec (*exceptionp);
2888 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3639 SvGETMAGIC (exception);
3640 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3641
3642 api_ready (aTHX_ self);
2889} 3643}
2890 3644
2891void 3645void
2892api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3646api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2893 PROTOTYPE: $;$ 3647 PROTOTYPE: $;$
… …
2895 3649
2896SV * 3650SV *
2897has_cctx (Coro::State coro) 3651has_cctx (Coro::State coro)
2898 PROTOTYPE: $ 3652 PROTOTYPE: $
2899 CODE: 3653 CODE:
2900 RETVAL = boolSV (!!coro->cctx); 3654 /* maybe manage the running flag differently */
3655 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2901 OUTPUT: 3656 OUTPUT:
2902 RETVAL 3657 RETVAL
2903 3658
2904int 3659int
2905is_traced (Coro::State coro) 3660is_traced (Coro::State coro)
… …
2925 3680
2926void 3681void
2927force_cctx () 3682force_cctx ()
2928 PROTOTYPE: 3683 PROTOTYPE:
2929 CODE: 3684 CODE:
2930 SvSTATE_current->cctx->idle_sp = 0; 3685 cctx_current->idle_sp = 0;
2931 3686
2932void 3687void
2933swap_defsv (Coro::State self) 3688swap_defsv (Coro::State self)
2934 PROTOTYPE: $ 3689 PROTOTYPE: $
2935 ALIAS: 3690 ALIAS:
… …
2943 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3698 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2944 3699
2945 SV *tmp = *src; *src = *dst; *dst = tmp; 3700 SV *tmp = *src; *src = *dst; *dst = tmp;
2946 } 3701 }
2947 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
2948 3764
2949MODULE = Coro::State PACKAGE = Coro 3765MODULE = Coro::State PACKAGE = Coro
2950 3766
2951BOOT: 3767BOOT:
2952{ 3768{
2953 int i;
2954
2955 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2956 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3769 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2957 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3770 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2958 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3771 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2959 cv_coro_terminate = get_cv ( "Coro::terminate", GV_ADD);
2960 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); 3772 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2961 SvREADONLY_on (coro_current); 3773 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3774 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3775 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3776 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2962 3777
2963 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);
2964 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3779 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
2965 cv_pool_handler = get_cv ("Coro::_pool_handler", 0); SvREADONLY_on (cv_pool_handler); 3780 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
2966 cv_coro_new = get_cv ("Coro::new", 0); SvREADONLY_on (cv_coro_new); 3781 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
2967 3782
2968 coro_stash = gv_stashpv ("Coro", TRUE); 3783 coro_stash = gv_stashpv ("Coro", TRUE);
2969 3784
2970 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3785 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2971 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3786 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2972 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3787 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2973 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3788 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2974 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3789 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2975 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3790 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2976
2977 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2978 coro_ready[i] = newAV ();
2979 3791
2980 { 3792 {
2981 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3793 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2982 3794
2983 coroapi.schedule = api_schedule; 3795 coroapi.schedule = api_schedule;
3796 coroapi.schedule_to = api_schedule_to;
2984 coroapi.cede = api_cede; 3797 coroapi.cede = api_cede;
2985 coroapi.cede_notself = api_cede_notself; 3798 coroapi.cede_notself = api_cede_notself;
2986 coroapi.ready = api_ready; 3799 coroapi.ready = api_ready;
2987 coroapi.is_ready = api_is_ready; 3800 coroapi.is_ready = api_is_ready;
2988 coroapi.nready = coro_nready; 3801 coroapi.nready = coro_nready;
… …
2992 sv_setiv (sv, (IV)&coroapi); 3805 sv_setiv (sv, (IV)&coroapi);
2993 SvREADONLY_on (sv); 3806 SvREADONLY_on (sv);
2994 } 3807 }
2995} 3808}
2996 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
3835void
3836terminate (...)
3837 CODE:
3838 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3839
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
2997void 3849void
2998schedule (...) 3850schedule (...)
2999 CODE: 3851 CODE:
3000 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3852 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3853
3854void
3855schedule_to (...)
3856 CODE:
3857 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3858
3859void
3860cede_to (...)
3861 CODE:
3862 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3001 3863
3002void 3864void
3003cede (...) 3865cede (...)
3004 CODE: 3866 CODE:
3005 CORO_EXECUTE_SLF_XS (slf_init_cede); 3867 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
3019void 3881void
3020_set_readyhook (SV *hook) 3882_set_readyhook (SV *hook)
3021 PROTOTYPE: $ 3883 PROTOTYPE: $
3022 CODE: 3884 CODE:
3023 SvREFCNT_dec (coro_readyhook); 3885 SvREFCNT_dec (coro_readyhook);
3886 SvGETMAGIC (hook);
3887 if (SvOK (hook))
3888 {
3024 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 }
3025 3897
3026int 3898int
3027prio (Coro::State coro, int newprio = 0) 3899prio (Coro::State coro, int newprio = 0)
3028 PROTOTYPE: $;$ 3900 PROTOTYPE: $;$
3029 ALIAS: 3901 ALIAS:
… …
3035 if (items > 1) 3907 if (items > 1)
3036 { 3908 {
3037 if (ix) 3909 if (ix)
3038 newprio = coro->prio - newprio; 3910 newprio = coro->prio - newprio;
3039 3911
3040 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3912 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3041 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3913 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3042 3914
3043 coro->prio = newprio; 3915 coro->prio = newprio;
3044 } 3916 }
3045} 3917}
3046 OUTPUT: 3918 OUTPUT:
… …
3061 RETVAL = coro_nready; 3933 RETVAL = coro_nready;
3062 OUTPUT: 3934 OUTPUT:
3063 RETVAL 3935 RETVAL
3064 3936
3065void 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
3066_pool_handler (...) 3950_pool_handler (...)
3067 CODE: 3951 CODE:
3068 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3952 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3069 3953
3070void 3954void
… …
3081 for (i = 1; i < items; ++i) 3965 for (i = 1; i < items; ++i)
3082 av_push (av, SvREFCNT_inc_NN (ST (i))); 3966 av_push (av, SvREFCNT_inc_NN (ST (i)));
3083 3967
3084 if ((SV *)hv == &PL_sv_undef) 3968 if ((SV *)hv == &PL_sv_undef)
3085 { 3969 {
3086 PUSHMARK (SP); 3970 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3087 EXTEND (SP, 2);
3088 PUSHs (sv_Coro);
3089 PUSHs ((SV *)cv_pool_handler);
3090 PUTBACK;
3091 call_sv ((SV *)cv_coro_new, G_SCALAR);
3092 SPAGAIN;
3093
3094 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3971 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3972 SvREFCNT_dec (sv);
3095 } 3973 }
3096 3974
3097 { 3975 {
3098 struct coro *coro = SvSTATE_hv (hv); 3976 struct coro *coro = SvSTATE_hv (hv);
3099 3977
… …
3123rouse_wait (...) 4001rouse_wait (...)
3124 PROTOTYPE: ;$ 4002 PROTOTYPE: ;$
3125 PPCODE: 4003 PPCODE:
3126 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4004 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3127 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
3128 4031
3129MODULE = Coro::State PACKAGE = PerlIO::cede 4032MODULE = Coro::State PACKAGE = PerlIO::cede
3130 4033
3131BOOT: 4034BOOT:
3132 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4035 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3135MODULE = Coro::State PACKAGE = Coro::Semaphore 4038MODULE = Coro::State PACKAGE = Coro::Semaphore
3136 4039
3137SV * 4040SV *
3138new (SV *klass, SV *count = 0) 4041new (SV *klass, SV *count = 0)
3139 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
3140 RETVAL = sv_bless ( 4054 RETVAL = sv_bless (
3141 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4055 coro_waitarray_new (aTHX_ semcnt),
3142 GvSTASH (CvGV (cv)) 4056 GvSTASH (CvGV (cv))
3143 ); 4057 );
4058}
3144 OUTPUT: 4059 OUTPUT:
3145 RETVAL 4060 RETVAL
3146 4061
3147# helper for Coro::Channel 4062# helper for Coro::Channel and others
3148SV * 4063SV *
3149_alloc (int count) 4064_alloc (int count)
3150 CODE: 4065 CODE:
3151 RETVAL = coro_waitarray_new (aTHX_ count); 4066 RETVAL = coro_waitarray_new (aTHX_ count);
3152 OUTPUT: 4067 OUTPUT:
… …
3194 XSRETURN_NO; 4109 XSRETURN_NO;
3195} 4110}
3196 4111
3197void 4112void
3198waiters (SV *self) 4113waiters (SV *self)
3199 PPCODE: 4114 PPCODE:
3200{ 4115{
3201 AV *av = (AV *)SvRV (self); 4116 AV *av = (AV *)SvRV (self);
3202 int wcount = AvFILLp (av) + 1 - 1; 4117 int wcount = AvFILLp (av) + 1 - 1;
3203 4118
3204 if (GIMME_V == G_SCALAR) 4119 if (GIMME_V == G_SCALAR)
… …
3210 for (i = 1; i <= wcount; ++i) 4125 for (i = 1; i <= wcount; ++i)
3211 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4126 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3212 } 4127 }
3213} 4128}
3214 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
3215MODULE = Coro::State PACKAGE = Coro::Signal 4146MODULE = Coro::State PACKAGE = Coro::Signal
3216 4147
3217SV * 4148SV *
3218new (SV *klass) 4149new (SV *klass)
3219 CODE: 4150 CODE:
… …
3231 4162
3232void 4163void
3233broadcast (SV *self) 4164broadcast (SV *self)
3234 CODE: 4165 CODE:
3235{ 4166{
3236 AV *av = (AV *)SvRV (self); 4167 AV *av = (AV *)SvRV (self);
3237 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4168 coro_signal_wake (aTHX_ av, AvFILLp (av));
3238} 4169}
3239 4170
3240void 4171void
3241send (SV *self) 4172send (SV *self)
… …
3249 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4180 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3250} 4181}
3251 4182
3252IV 4183IV
3253awaited (SV *self) 4184awaited (SV *self)
3254 CODE: 4185 CODE:
3255 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4186 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3256 OUTPUT: 4187 OUTPUT:
3257 RETVAL 4188 RETVAL
3258 4189
3259 4190
… …
3264 4195
3265void 4196void
3266_schedule (...) 4197_schedule (...)
3267 CODE: 4198 CODE:
3268{ 4199{
3269 static int incede; 4200 static int incede;
3270 4201
3271 api_cede_notself (aTHX); 4202 api_cede_notself (aTHX);
3272 4203
3273 ++incede; 4204 ++incede;
3274 while (coro_nready >= incede && api_cede (aTHX)) 4205 while (coro_nready >= incede && api_cede (aTHX))
… …
3290 4221
3291void 4222void
3292_register (char *target, char *proto, SV *req) 4223_register (char *target, char *proto, SV *req)
3293 CODE: 4224 CODE:
3294{ 4225{
3295 CV *req_cv = coro_sv_2cv (aTHX_ req); 4226 SV *req_cv = s_get_cv_croak (req);
3296 /* newXSproto doesn't return the CV on 5.8 */ 4227 /* newXSproto doesn't return the CV on 5.8 */
3297 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4228 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3298 sv_setpv ((SV *)slf_cv, proto); 4229 sv_setpv ((SV *)slf_cv, proto);
3299 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);
3300} 4231}
3301 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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