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Comparing Coro/Coro/State.xs (file contents):
Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC vs.
Revision 1.448 by root, Thu Jun 4 22:58:28 2015 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
12 17
18#define ECB_NO_THREADS 1
19#define ECB_NO_LIBM 1
20#include "ecb.h"
21
22#include <stddef.h>
13#include <stdio.h> 23#include <stdio.h>
14#include <errno.h> 24#include <errno.h>
15#include <assert.h> 25#include <assert.h>
16 26
17#ifdef WIN32 27#ifndef SVs_PADSTALE
28# define SVs_PADSTALE 0
29#endif
30
31#ifdef PadARRAY
32# define NEWPADAPI 1
33# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
34#else
35typedef AV PADNAMELIST;
36# if !PERL_VERSION_ATLEAST(5,8,0)
37typedef AV PADLIST;
38typedef AV PAD;
39# endif
40# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
41# define PadlistMAX(pl) AvFILLp (pl)
42# define PadlistNAMES(pl) (*PadlistARRAY (pl))
43# define PadARRAY AvARRAY
44# define PadMAX AvFILLp
45# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
46#endif
47#ifndef PadnamelistREFCNT
48# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
49#endif
50#ifndef PadnamelistREFCNT_dec
51# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
52#endif
53
54/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
55/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
56#if PERL_VERSION_ATLEAST(5,19,0)
57# define SVt_BIND SVt_IV
58#endif
59
60#if defined(_WIN32)
61# undef HAS_GETTIMEOFDAY
18# undef setjmp 62# undef setjmp
19# undef longjmp 63# undef longjmp
20# undef _exit 64# undef _exit
21# define setjmp _setjmp /* deep magic */ 65# define setjmp _setjmp /* deep magic */
22#else 66#else
23# include <inttypes.h> /* most portable stdint.h */ 67# include <inttypes.h> /* most portable stdint.h */
24#endif 68#endif
25 69
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 */ 70/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 71static int cctx_max_idle = 4;
55 72
56#define PERL_VERSION_ATLEAST(a,b,c) \ 73#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 74# 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 75#endif
116 76
117/* prefer perl internal functions over our own? */ 77/* prefer perl internal functions over our own? */
118#ifndef CORO_PREFER_PERL_FUNCTIONS 78#ifndef CORO_PREFER_PERL_FUNCTIONS
119# define CORO_PREFER_PERL_FUNCTIONS 0 79# define CORO_PREFER_PERL_FUNCTIONS 0
… …
127#else 87#else
128# define dSTACKLEVEL volatile void *stacklevel 88# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel) 89# define STACKLEVEL ((void *)&stacklevel)
130#endif 90#endif
131 91
132#define IN_DESTRUCT (PL_main_cv == Nullcv) 92#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 93
149#include "CoroAPI.h" 94#include "CoroAPI.h"
150#define GCoroAPI (&coroapi) /* very sneaky */ 95#define GCoroAPI (&coroapi) /* very sneaky */
151 96
152#ifdef USE_ITHREADS 97#ifdef USE_ITHREADS
153# if CORO_PTHREAD 98# if CORO_PTHREAD
154static void *coro_thx; 99static void *coro_thx;
155# endif 100# endif
156#endif 101#endif
157 102
103#ifdef __linux
104# include <time.h> /* for timespec */
105# include <syscall.h> /* for SYS_* */
106# ifdef SYS_clock_gettime
107# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
108# define CORO_CLOCK_MONOTONIC 1
109# define CORO_CLOCK_THREAD_CPUTIME_ID 3
110# endif
111#endif
112
158static double (*nvtime)(); /* so why doesn't it take void? */ 113static double (*nvtime)(); /* so why doesn't it take void? */
114static void (*u2time)(pTHX_ UV ret[2]);
159 115
160/* we hijack an hopefully unused CV flag for our purposes */ 116/* we hijack an hopefully unused CV flag for our purposes */
161#define CVf_SLF 0x4000 117#define CVf_SLF 0x4000
162static OP *pp_slf (pTHX); 118static OP *pp_slf (pTHX);
119static void slf_destroy (pTHX_ struct coro *coro);
163 120
164static U32 cctx_gen; 121static U32 cctx_gen;
165static size_t cctx_stacksize = CORO_STACKSIZE; 122static size_t cctx_stacksize = CORO_STACKSIZE;
166static struct CoroAPI coroapi; 123static struct CoroAPI coroapi;
167static AV *main_mainstack; /* used to differentiate between $main and others */ 124static AV *main_mainstack; /* used to differentiate between $main and others */
168static JMPENV *main_top_env; 125static JMPENV *main_top_env;
169static HV *coro_state_stash, *coro_stash; 126static HV *coro_state_stash, *coro_stash;
170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 127static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171 128
129static AV *av_destroy; /* destruction queue */
130static SV *sv_manager; /* the manager coro */
131static SV *sv_idle; /* $Coro::idle */
132
172static GV *irsgv; /* $/ */ 133static GV *irsgv; /* $/ */
173static GV *stdoutgv; /* *STDOUT */ 134static GV *stdoutgv; /* *STDOUT */
174static SV *rv_diehook; 135static SV *rv_diehook;
175static SV *rv_warnhook; 136static SV *rv_warnhook;
176static HV *hv_sig; /* %SIG */ 137static HV *hv_sig; /* %SIG */
177 138
178/* async_pool helper stuff */ 139/* async_pool helper stuff */
179static SV *sv_pool_rss; 140static SV *sv_pool_rss;
180static SV *sv_pool_size; 141static SV *sv_pool_size;
181static SV *sv_async_pool_idle; 142static SV *sv_async_pool_idle; /* description string */
182static AV *av_async_pool; 143static AV *av_async_pool; /* idle pool */
183static SV *sv_Coro; 144static SV *sv_Coro; /* class string */
184static CV *cv_pool_handler; 145static CV *cv_pool_handler;
185static CV *cv_coro_new;
186 146
187/* Coro::AnyEvent */ 147/* Coro::AnyEvent */
188static SV *sv_activity; 148static SV *sv_activity;
189 149
150/* enable processtime/realtime profiling */
151static char enable_times;
152typedef U32 coro_ts[2];
153static coro_ts time_real, time_cpu;
154static char times_valid;
155
190static struct coro_cctx *cctx_first; 156static struct coro_cctx *cctx_first;
191static int cctx_count, cctx_idle; 157static int cctx_count, cctx_idle;
192 158
193enum { 159enum
160{
194 CC_MAPPED = 0x01, 161 CC_MAPPED = 0x01,
195 CC_NOREUSE = 0x02, /* throw this away after tracing */ 162 CC_NOREUSE = 0x02, /* throw this away after tracing */
196 CC_TRACE = 0x04, 163 CC_TRACE = 0x04,
197 CC_TRACE_SUB = 0x08, /* trace sub calls */ 164 CC_TRACE_SUB = 0x08, /* trace sub calls */
198 CC_TRACE_LINE = 0x10, /* trace each statement */ 165 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
203typedef struct coro_cctx 170typedef struct coro_cctx
204{ 171{
205 struct coro_cctx *next; 172 struct coro_cctx *next;
206 173
207 /* the stack */ 174 /* the stack */
208 void *sptr; 175 struct coro_stack stack;
209 size_t ssize;
210 176
211 /* cpu state */ 177 /* cpu state */
212 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 178 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
179#ifndef NDEBUG
213 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 180 JMPENV *idle_te; /* same as idle_sp, but for top_env */
181#endif
214 JMPENV *top_env; 182 JMPENV *top_env;
215 coro_context cctx; 183 coro_context cctx;
216 184
217 U32 gen; 185 U32 gen;
218#if CORO_USE_VALGRIND 186#if CORO_USE_VALGRIND
219 int valgrind_id; 187 int valgrind_id;
220#endif 188#endif
221 unsigned char flags; 189 unsigned char flags;
222} coro_cctx; 190} coro_cctx;
223 191
192static coro_cctx *cctx_current; /* the currently running cctx */
193
194/*****************************************************************************/
195
196static MGVTBL coro_state_vtbl;
197
224enum { 198enum
199{
225 CF_RUNNING = 0x0001, /* coroutine is running */ 200 CF_RUNNING = 0x0001, /* coroutine is running */
226 CF_READY = 0x0002, /* coroutine is ready */ 201 CF_READY = 0x0002, /* coroutine is ready */
227 CF_NEW = 0x0004, /* has never been switched to */ 202 CF_NEW = 0x0004, /* has never been switched to */
228 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 203 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
204 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
205 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
229}; 206};
230 207
231/* the structure where most of the perl state is stored, overlaid on the cxstack */ 208/* the structure where most of the perl state is stored, overlaid on the cxstack */
232typedef struct 209typedef struct
233{ 210{
234 SV *defsv;
235 AV *defav;
236 SV *errsv;
237 SV *irsgv;
238#define VAR(name,type) type name; 211 #define VARx(name,expr,type) type name;
239# include "state.h" 212 #include "state.h"
240#undef VAR
241} perl_slots; 213} perl_slots;
242 214
215/* 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)) 216#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
244 217
245/* this is a structure representing a perl-level coroutine */ 218/* this is a structure representing a perl-level coroutine */
246struct coro { 219struct coro
220{
247 /* the C coroutine allocated to this perl coroutine, if any */ 221 /* the C coroutine allocated to this perl coroutine, if any */
248 coro_cctx *cctx; 222 coro_cctx *cctx;
223
224 /* ready queue */
225 struct coro *next_ready;
249 226
250 /* state data */ 227 /* state data */
251 struct CoroSLF slf_frame; /* saved slf frame */ 228 struct CoroSLF slf_frame; /* saved slf frame */
252 AV *mainstack; 229 AV *mainstack;
253 perl_slots *slot; /* basically the saved sp */ 230 perl_slots *slot; /* basically the saved sp */
254 231
255 CV *startcv; /* the CV to execute */ 232 CV *startcv; /* the CV to execute */
256 AV *args; /* data associated with this coroutine (initial args) */ 233 AV *args; /* data associated with this coroutine (initial args) */
257 int refcnt; /* coroutines are refcounted, yes */
258 int flags; /* CF_ flags */ 234 int flags; /* CF_ flags */
259 HV *hv; /* the perl hash associated with this coro, if any */ 235 HV *hv; /* the perl hash associated with this coro, if any */
260 void (*on_destroy)(pTHX_ struct coro *coro);
261 236
262 /* statistics */ 237 /* statistics */
263 int usecount; /* number of transfers to this coro */ 238 int usecount; /* number of transfers to this coro */
264 239
265 /* coro process data */ 240 /* coro process data */
266 int prio; 241 int prio;
267 SV *except; /* exception to be thrown */ 242 SV *except; /* exception to be thrown */
268 SV *rouse_cb; 243 SV *rouse_cb; /* last rouse callback */
244 AV *on_destroy; /* callbacks or coros to notify on destroy */
245 AV *status; /* the exit status list */
269 246
270 /* async_pool */ 247 /* async_pool */
271 SV *saved_deffh; 248 SV *saved_deffh;
272 SV *invoke_cb; 249 SV *invoke_cb;
273 AV *invoke_av; 250 AV *invoke_av;
274 251
252 /* on_enter/on_leave */
253 AV *on_enter;
254 AV *on_leave;
255
256 /* swap_sv */
257 AV *swap_sv;
258
259 /* times */
260 coro_ts t_cpu, t_real;
261
275 /* linked list */ 262 /* linked list */
276 struct coro *next, *prev; 263 struct coro *next, *prev;
277}; 264};
278 265
279typedef struct coro *Coro__State; 266typedef struct coro *Coro__State;
280typedef struct coro *Coro__State_or_hashref; 267typedef struct coro *Coro__State_or_hashref;
281 268
282/* the following variables are effectively part of the perl context */ 269/* the following variables are effectively part of the perl context */
283/* and get copied between struct coro and these variables */ 270/* and get copied between struct coro and these variables */
284/* the mainr easonw e don't support windows process emulation */ 271/* the main reason we don't support windows process emulation */
285static struct CoroSLF slf_frame; /* the current slf frame */ 272static struct CoroSLF slf_frame; /* the current slf frame */
286 273
287/** Coro ********************************************************************/ 274/** Coro ********************************************************************/
288 275
289#define PRIO_MAX 3 276#define CORO_PRIO_MAX 3
290#define PRIO_HIGH 1 277#define CORO_PRIO_HIGH 1
291#define PRIO_NORMAL 0 278#define CORO_PRIO_NORMAL 0
292#define PRIO_LOW -1 279#define CORO_PRIO_LOW -1
293#define PRIO_IDLE -3 280#define CORO_PRIO_IDLE -3
294#define PRIO_MIN -4 281#define CORO_PRIO_MIN -4
295 282
296/* for Coro.pm */ 283/* for Coro.pm */
297static SV *coro_current; 284static SV *coro_current;
298static SV *coro_readyhook; 285static SV *coro_readyhook;
299static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 286static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
300static CV *cv_coro_run, *cv_coro_terminate; 287static CV *cv_coro_run;
301static struct coro *coro_first; 288static struct coro *coro_first;
302#define coro_nready coroapi.nready 289#define coro_nready coroapi.nready
303 290
291/** JIT *********************************************************************/
292
293#if CORO_JIT
294 /* APPLE doesn't have mmap though */
295 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
296 #ifndef CORO_JIT_TYPE
297 #if ECB_AMD64 && CORO_JIT_UNIXY
298 #define CORO_JIT_TYPE "amd64-unix"
299 #elif __i386 && CORO_JIT_UNIXY
300 #define CORO_JIT_TYPE "x86-unix"
301 #endif
302 #endif
303#endif
304
305#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
306 #undef CORO_JIT
307#endif
308
309#if CORO_JIT
310 typedef void (*load_save_perl_slots_type)(perl_slots *);
311 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
312#endif
313
314/** Coro::Select ************************************************************/
315
316static OP *(*coro_old_pp_sselect) (pTHX);
317static SV *coro_select_select;
318
319/* horrible hack, but if it works... */
320static OP *
321coro_pp_sselect (pTHX)
322{
323 dSP;
324 PUSHMARK (SP - 4); /* fake argument list */
325 XPUSHs (coro_select_select);
326 PUTBACK;
327
328 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
329 PL_op->op_flags |= OPf_STACKED;
330 PL_op->op_private = 0;
331 return PL_ppaddr [OP_ENTERSUB](aTHX);
332}
333
334/** time stuff **************************************************************/
335
336#ifdef HAS_GETTIMEOFDAY
337
338ecb_inline void
339coro_u2time (pTHX_ UV ret[2])
340{
341 struct timeval tv;
342 gettimeofday (&tv, 0);
343
344 ret [0] = tv.tv_sec;
345 ret [1] = tv.tv_usec;
346}
347
348ecb_inline double
349coro_nvtime (void)
350{
351 struct timeval tv;
352 gettimeofday (&tv, 0);
353
354 return tv.tv_sec + tv.tv_usec * 1e-6;
355}
356
357ecb_inline void
358time_init (pTHX)
359{
360 nvtime = coro_nvtime;
361 u2time = coro_u2time;
362}
363
364#else
365
366ecb_inline void
367time_init (pTHX)
368{
369 SV **svp;
370
371 require_pv ("Time/HiRes.pm");
372
373 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
374
375 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
376 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
377
378 nvtime = INT2PTR (double (*)(), SvIV (*svp));
379
380 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
381 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
382}
383
384#endif
385
304/** lowlevel stuff **********************************************************/ 386/** lowlevel stuff **********************************************************/
305 387
306static SV * 388static SV * ecb_noinline
307coro_get_sv (pTHX_ const char *name, int create) 389coro_get_sv (pTHX_ const char *name, int create)
308{ 390{
309#if PERL_VERSION_ATLEAST (5,10,0) 391#if PERL_VERSION_ATLEAST (5,10,0)
310 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 392 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
311 get_sv (name, create); 393 get_sv (name, create);
312#endif 394#endif
313 return get_sv (name, create); 395 return get_sv (name, create);
314} 396}
315 397
316static AV * 398static AV * ecb_noinline
317coro_get_av (pTHX_ const char *name, int create) 399coro_get_av (pTHX_ const char *name, int create)
318{ 400{
319#if PERL_VERSION_ATLEAST (5,10,0) 401#if PERL_VERSION_ATLEAST (5,10,0)
320 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 402 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
321 get_av (name, create); 403 get_av (name, create);
322#endif 404#endif
323 return get_av (name, create); 405 return get_av (name, create);
324} 406}
325 407
326static HV * 408static HV * ecb_noinline
327coro_get_hv (pTHX_ const char *name, int create) 409coro_get_hv (pTHX_ const char *name, int create)
328{ 410{
329#if PERL_VERSION_ATLEAST (5,10,0) 411#if PERL_VERSION_ATLEAST (5,10,0)
330 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 412 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
331 get_hv (name, create); 413 get_hv (name, create);
332#endif 414#endif
333 return get_hv (name, create); 415 return get_hv (name, create);
334} 416}
335 417
336/* may croak */ 418ecb_inline void
337INLINE CV * 419coro_times_update (void)
338coro_sv_2cv (pTHX_ SV *sv)
339{ 420{
340 HV *st; 421#ifdef coro_clock_gettime
341 GV *gvp; 422 struct timespec ts;
342 return sv_2cv (sv, &st, &gvp, 0);
343}
344 423
345static AV * 424 ts.tv_sec = ts.tv_nsec = 0;
425 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
426 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
427
428 ts.tv_sec = ts.tv_nsec = 0;
429 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
430 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
431#else
432 dTHX;
433 UV tv[2];
434
435 u2time (aTHX_ tv);
436 time_real [0] = tv [0];
437 time_real [1] = tv [1] * 1000;
438#endif
439}
440
441ecb_inline void
442coro_times_add (struct coro *c)
443{
444 c->t_real [1] += time_real [1];
445 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
446 c->t_real [0] += time_real [0];
447
448 c->t_cpu [1] += time_cpu [1];
449 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
450 c->t_cpu [0] += time_cpu [0];
451}
452
453ecb_inline void
454coro_times_sub (struct coro *c)
455{
456 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
457 c->t_real [1] -= time_real [1];
458 c->t_real [0] -= time_real [0];
459
460 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
461 c->t_cpu [1] -= time_cpu [1];
462 c->t_cpu [0] -= time_cpu [0];
463}
464
465/*****************************************************************************/
466/* magic glue */
467
468#define CORO_MAGIC_type_cv 26
469#define CORO_MAGIC_type_state PERL_MAGIC_ext
470
471#define CORO_MAGIC_NN(sv, type) \
472 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
473 ? SvMAGIC (sv) \
474 : mg_find (sv, type))
475
476#define CORO_MAGIC(sv, type) \
477 (ecb_expect_true (SvMAGIC (sv)) \
478 ? CORO_MAGIC_NN (sv, type) \
479 : 0)
480
481#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
482#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
483
484ecb_inline MAGIC *
485SvSTATEhv_p (pTHX_ SV *coro)
486{
487 MAGIC *mg;
488
489 if (ecb_expect_true (
490 SvTYPE (coro) == SVt_PVHV
491 && (mg = CORO_MAGIC_state (coro))
492 && mg->mg_virtual == &coro_state_vtbl
493 ))
494 return mg;
495
496 return 0;
497}
498
499ecb_inline struct coro *
500SvSTATE_ (pTHX_ SV *coro)
501{
502 MAGIC *mg;
503
504 if (SvROK (coro))
505 coro = SvRV (coro);
506
507 mg = SvSTATEhv_p (aTHX_ coro);
508 if (!mg)
509 croak ("Coro::State object required");
510
511 return (struct coro *)mg->mg_ptr;
512}
513
514#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
515
516/* faster than SvSTATE, but expects a coroutine hv */
517#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
518#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
519
520/*****************************************************************************/
521/* padlist management and caching */
522
523ecb_inline PADLIST *
346coro_clone_padlist (pTHX_ CV *cv) 524coro_derive_padlist (pTHX_ CV *cv)
347{ 525{
348 AV *padlist = CvPADLIST (cv); 526 PADLIST *padlist = CvPADLIST (cv);
349 AV *newpadlist, *newpad; 527 PADLIST *newpadlist;
528 PADNAMELIST *padnames;
529 PAD *newpad;
530 PADOFFSET off = PadlistMAX (padlist) + 1;
350 531
351 newpadlist = newAV (); 532#if NEWPADAPI
533
534 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
535 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
536 while (!PadlistARRAY (padlist)[off - 1])
537 --off;
538
539 Perl_pad_push (aTHX_ padlist, off);
540
541 newpad = PadlistARRAY (padlist)[off];
542 PadlistARRAY (padlist)[off] = 0;
543
544#else
545
546#if PERL_VERSION_ATLEAST (5,10,0)
547 Perl_pad_push (aTHX_ padlist, off);
548#else
549 Perl_pad_push (aTHX_ padlist, off, 1);
550#endif
551
552 newpad = PadlistARRAY (padlist)[off];
553 PadlistMAX (padlist) = off - 1;
554
555#endif
556
557 newPADLIST (newpadlist);
558#if !PERL_VERSION_ATLEAST(5,15,3)
559 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
352 AvREAL_off (newpadlist); 560 AvREAL_off (newpadlist);
353#if PERL_VERSION_ATLEAST (5,10,0)
354 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
355#else
356 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
357#endif 561#endif
358 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
359 --AvFILLp (padlist);
360 562
361 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 563 /* Already extended to 2 elements by newPADLIST. */
362 av_store (newpadlist, 1, (SV *)newpad); 564 PadlistMAX (newpadlist) = 1;
565
566 padnames = PadlistNAMES (padlist);
567 ++PadnamelistREFCNT (padnames);
568 PadlistNAMES (newpadlist) = padnames;
569
570 PadlistARRAY (newpadlist)[1] = newpad;
363 571
364 return newpadlist; 572 return newpadlist;
365} 573}
366 574
367static void 575ecb_inline void
368free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
369{ 577{
370 /* may be during global destruction */ 578 /* may be during global destruction */
371 if (SvREFCNT (padlist)) 579 if (!IN_DESTRUCT)
372 { 580 {
373 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
374 while (i >= 0) 582
583 while (i > 0) /* special-case index 0 */
375 { 584 {
376 SV **svp = av_fetch (padlist, i--, FALSE); 585 /* we try to be extra-careful here */
586 PAD *pad = PadlistARRAY (padlist)[i--];
587
377 if (svp) 588 if (pad)
378 { 589 {
379 SV *sv; 590 I32 j = PadMAX (pad);
380 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 591
592 while (j >= 0)
381 SvREFCNT_dec (sv); 593 SvREFCNT_dec (PadARRAY (pad)[j--]);
382 594
595 PadMAX (pad) = -1;
383 SvREFCNT_dec (*svp); 596 SvREFCNT_dec (pad);
384 } 597 }
385 } 598 }
386 599
600 PadnamelistREFCNT_dec (PadlistNAMES (padlist));
601
602#if NEWPADAPI
603 Safefree (PadlistARRAY (padlist));
604 Safefree (padlist);
605#else
606 AvFILLp (padlist) = -1;
607 AvREAL_off (padlist);
387 SvREFCNT_dec ((SV*)padlist); 608 SvREFCNT_dec ((SV*)padlist);
609#endif
388 } 610 }
389} 611}
390 612
391static int 613static int
392coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 614coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
393{ 615{
394 AV *padlist; 616 PADLIST *padlist;
395 AV *av = (AV *)mg->mg_obj; 617 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
618 size_t len = *(size_t *)mg->mg_ptr;
396 619
397 /* casting is fun. */ 620 /* perl manages to free our internal AV and _then_ call us */
398 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 621 if (IN_DESTRUCT)
622 return 0;
623
624 while (len--)
399 free_padlist (aTHX_ padlist); 625 free_padlist (aTHX_ padlists[len]);
400
401 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
402 626
403 return 0; 627 return 0;
404} 628}
405
406#define CORO_MAGIC_type_cv 26
407#define CORO_MAGIC_type_state PERL_MAGIC_ext
408 629
409static MGVTBL coro_cv_vtbl = { 630static MGVTBL coro_cv_vtbl = {
410 0, 0, 0, 0, 631 0, 0, 0, 0,
411 coro_cv_free 632 coro_cv_free
412}; 633};
413 634
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 */ 635/* the next two functions merely cache the padlists */
458static void 636ecb_inline void
459get_padlist (pTHX_ CV *cv) 637get_padlist (pTHX_ CV *cv)
460{ 638{
461 MAGIC *mg = CORO_MAGIC_cv (cv); 639 MAGIC *mg = CORO_MAGIC_cv (cv);
462 AV *av; 640 size_t *lenp;
463 641
464 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 642 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
465 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 643 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
466 else 644 else
467 { 645 {
468#if CORO_PREFER_PERL_FUNCTIONS 646#if CORO_PREFER_PERL_FUNCTIONS
469 /* this is probably cleaner? but also slower! */ 647 /* this is probably cleaner? but also slower! */
470 /* in practise, it seems to be less stable */ 648 /* in practise, it seems to be less stable */
471 CV *cp = Perl_cv_clone (aTHX_ cv); 649 CV *cp = Perl_cv_clone (aTHX_ cv);
472 CvPADLIST (cv) = CvPADLIST (cp); 650 CvPADLIST (cv) = CvPADLIST (cp);
473 CvPADLIST (cp) = 0; 651 CvPADLIST (cp) = 0;
474 SvREFCNT_dec (cp); 652 SvREFCNT_dec (cp);
475#else 653#else
476 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 654 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
477#endif 655#endif
478 } 656 }
479} 657}
480 658
481static void 659ecb_inline void
482put_padlist (pTHX_ CV *cv) 660put_padlist (pTHX_ CV *cv)
483{ 661{
484 MAGIC *mg = CORO_MAGIC_cv (cv); 662 MAGIC *mg = CORO_MAGIC_cv (cv);
485 AV *av;
486 663
487 if (expect_false (!mg)) 664 if (ecb_expect_false (!mg))
665 {
488 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 666 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
667 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
668 mg->mg_len = 1; /* so mg_free frees mg_ptr */
669 }
670 else
671 Renew (mg->mg_ptr,
672 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
673 char);
489 674
490 av = (AV *)mg->mg_obj; 675 ((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} 676}
497 677
498/** load & save, init *******************************************************/ 678/** load & save, init *******************************************************/
679
680ecb_inline void
681swap_sv (SV *a, SV *b)
682{
683 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
684 SV tmp;
685
686 /* swap sv_any */
687 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
688
689 /* swap sv_flags */
690 SvFLAGS (&tmp) = SvFLAGS (a);
691 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
692 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
693
694#if PERL_VERSION_ATLEAST (5,10,0)
695 /* perl 5.10 and later complicates this _quite_ a bit, but it also
696 * is much faster, so no quarrels here. alternatively, we could
697 * sv_upgrade to avoid this.
698 */
699 {
700 /* swap sv_u */
701 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
702
703 /* if SvANY points to the head, we need to adjust the pointers,
704 * as the pointer for a still points to b, and maybe vice versa.
705 */
706 #define svany_in_head(type) \
707 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
708
709 if (svany_in_head (SvTYPE (a)))
710 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
711
712 if (svany_in_head (SvTYPE (b)))
713 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
714 }
715#endif
716}
717
718/* swap sv heads, at least logically */
719static void
720swap_svs (pTHX_ Coro__State c)
721{
722 int i;
723
724 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
725 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
726}
727
728#define SWAP_SVS(coro) \
729 if (ecb_expect_false ((coro)->swap_sv)) \
730 swap_svs (aTHX_ (coro))
731
732static void
733on_enterleave_call (pTHX_ SV *cb);
499 734
500static void 735static void
501load_perl (pTHX_ Coro__State c) 736load_perl (pTHX_ Coro__State c)
502{ 737{
503 perl_slots *slot = c->slot; 738 perl_slots *slot = c->slot;
504 c->slot = 0; 739 c->slot = 0;
505 740
506 PL_mainstack = c->mainstack; 741 PL_mainstack = c->mainstack;
507 742
508 GvSV (PL_defgv) = slot->defsv; 743#if CORO_JIT
509 GvAV (PL_defgv) = slot->defav; 744 load_perl_slots (slot);
510 GvSV (PL_errgv) = slot->errsv; 745#else
511 GvSV (irsgv) = slot->irsgv;
512
513 #define VAR(name,type) PL_ ## name = slot->name; 746 #define VARx(name,expr,type) expr = slot->name;
514 # include "state.h" 747 #include "state.h"
515 #undef VAR 748#endif
516 749
517 { 750 {
518 dSP; 751 dSP;
519 752
520 CV *cv; 753 CV *cv;
521 754
522 /* now do the ugly restore mess */ 755 /* now do the ugly restore mess */
523 while (expect_true (cv = (CV *)POPs)) 756 while (ecb_expect_true (cv = (CV *)POPs))
524 { 757 {
525 put_padlist (aTHX_ cv); /* mark this padlist as available */ 758 put_padlist (aTHX_ cv); /* mark this padlist as available */
526 CvDEPTH (cv) = PTR2IV (POPs); 759 CvDEPTH (cv) = PTR2IV (POPs);
527 CvPADLIST (cv) = (AV *)POPs; 760 CvPADLIST (cv) = (PADLIST *)POPs;
528 } 761 }
529 762
530 PUTBACK; 763 PUTBACK;
531 } 764 }
532 765
533 slf_frame = c->slf_frame; 766 slf_frame = c->slf_frame;
534 CORO_THROW = c->except; 767 CORO_THROW = c->except;
768
769 if (ecb_expect_false (enable_times))
770 {
771 if (ecb_expect_false (!times_valid))
772 coro_times_update ();
773
774 coro_times_sub (c);
775 }
776
777 if (ecb_expect_false (c->on_enter))
778 {
779 int i;
780
781 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
782 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
783 }
784
785 SWAP_SVS (c);
535} 786}
536 787
537static void 788static void
538save_perl (pTHX_ Coro__State c) 789save_perl (pTHX_ Coro__State c)
539{ 790{
791 SWAP_SVS (c);
792
793 if (ecb_expect_false (c->on_leave))
794 {
795 int i;
796
797 for (i = AvFILLp (c->on_leave); i >= 0; --i)
798 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
799 }
800
801 times_valid = 0;
802
803 if (ecb_expect_false (enable_times))
804 {
805 coro_times_update (); times_valid = 1;
806 coro_times_add (c);
807 }
808
540 c->except = CORO_THROW; 809 c->except = CORO_THROW;
541 c->slf_frame = slf_frame; 810 c->slf_frame = slf_frame;
542 811
543 { 812 {
544 dSP; 813 dSP;
… …
553 822
554 XPUSHs (Nullsv); 823 XPUSHs (Nullsv);
555 /* this loop was inspired by pp_caller */ 824 /* this loop was inspired by pp_caller */
556 for (;;) 825 for (;;)
557 { 826 {
558 while (expect_true (cxix >= 0)) 827 while (ecb_expect_true (cxix >= 0))
559 { 828 {
560 PERL_CONTEXT *cx = &ccstk[cxix--]; 829 PERL_CONTEXT *cx = &ccstk[cxix--];
561 830
562 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 831 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
563 { 832 {
564 CV *cv = cx->blk_sub.cv; 833 CV *cv = cx->blk_sub.cv;
565 834
566 if (expect_true (CvDEPTH (cv))) 835 if (ecb_expect_true (CvDEPTH (cv)))
567 { 836 {
568 EXTEND (SP, 3); 837 EXTEND (SP, 3);
569 PUSHs ((SV *)CvPADLIST (cv)); 838 PUSHs ((SV *)CvPADLIST (cv));
570 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 839 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
571 PUSHs ((SV *)cv); 840 PUSHs ((SV *)cv);
… …
574 get_padlist (aTHX_ cv); 843 get_padlist (aTHX_ cv);
575 } 844 }
576 } 845 }
577 } 846 }
578 847
579 if (expect_true (top_si->si_type == PERLSI_MAIN)) 848 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
580 break; 849 break;
581 850
582 top_si = top_si->si_prev; 851 top_si = top_si->si_prev;
583 ccstk = top_si->si_cxstack; 852 ccstk = top_si->si_cxstack;
584 cxix = top_si->si_cxix; 853 cxix = top_si->si_cxix;
… …
586 855
587 PUTBACK; 856 PUTBACK;
588 } 857 }
589 858
590 /* allocate some space on the context stack for our purposes */ 859 /* allocate some space on the context stack for our purposes */
591 /* we manually unroll here, as usually 2 slots is enough */ 860 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 { 861 {
596 int i; 862 unsigned int i;
863
597 for (i = 3; i < SLOT_COUNT; ++i) 864 for (i = 0; i < SLOT_COUNT; ++i)
598 CXINC; 865 CXINC;
599 } 866
600 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 867 cxstack_ix -= SLOT_COUNT; /* undo allocation */
868 }
601 869
602 c->mainstack = PL_mainstack; 870 c->mainstack = PL_mainstack;
603 871
604 { 872 {
605 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 873 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
606 874
607 slot->defav = GvAV (PL_defgv); 875#if CORO_JIT
608 slot->defsv = DEFSV; 876 save_perl_slots (slot);
609 slot->errsv = ERRSV; 877#else
610 slot->irsgv = GvSV (irsgv);
611
612 #define VAR(name,type) slot->name = PL_ ## name; 878 #define VARx(name,expr,type) slot->name = expr;
613 # include "state.h" 879 #include "state.h"
614 #undef VAR 880#endif
615 } 881 }
616} 882}
617 883
618/* 884/*
619 * allocate various perl stacks. This is almost an exact copy 885 * allocate various perl stacks. This is almost an exact copy
… …
625# define coro_init_stacks(thx) init_stacks () 891# define coro_init_stacks(thx) init_stacks ()
626#else 892#else
627static void 893static void
628coro_init_stacks (pTHX) 894coro_init_stacks (pTHX)
629{ 895{
630 PL_curstackinfo = new_stackinfo(32, 8); 896 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; 897 PL_curstackinfo->si_type = PERLSI_MAIN;
632 PL_curstack = PL_curstackinfo->si_stack; 898 PL_curstack = PL_curstackinfo->si_stack;
633 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 899 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
634 900
635 PL_stack_base = AvARRAY(PL_curstack); 901 PL_stack_base = AvARRAY(PL_curstack);
… …
650#endif 916#endif
651 917
652 New(54,PL_scopestack,8,I32); 918 New(54,PL_scopestack,8,I32);
653 PL_scopestack_ix = 0; 919 PL_scopestack_ix = 0;
654 PL_scopestack_max = 8; 920 PL_scopestack_max = 8;
921#if HAS_SCOPESTACK_NAME
922 New(54,PL_scopestack_name,8,const char*);
923#endif
655 924
656 New(54,PL_savestack,24,ANY); 925 New(54,PL_savestack,24,ANY);
657 PL_savestack_ix = 0; 926 PL_savestack_ix = 0;
658 PL_savestack_max = 24; 927 PL_savestack_max = 24;
659 928
… …
687 } 956 }
688 957
689 Safefree (PL_tmps_stack); 958 Safefree (PL_tmps_stack);
690 Safefree (PL_markstack); 959 Safefree (PL_markstack);
691 Safefree (PL_scopestack); 960 Safefree (PL_scopestack);
961#if HAS_SCOPESTACK_NAME
962 Safefree (PL_scopestack_name);
963#endif
692 Safefree (PL_savestack); 964 Safefree (PL_savestack);
693#if !PERL_VERSION_ATLEAST (5,10,0) 965#if !PERL_VERSION_ATLEAST (5,10,0)
694 Safefree (PL_retstack); 966 Safefree (PL_retstack);
695#endif 967#endif
696} 968}
… …
742#endif 1014#endif
743 1015
744/* 1016/*
745 * This overrides the default magic get method of %SIG elements. 1017 * 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 1018 * 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 1019 * and instead of trying to save and restore the hash elements (extremely slow),
748 * readback here. 1020 * 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 */ 1021 */
753static int 1022static int ecb_cold
754coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1023coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
755{ 1024{
756 const char *s = MgPV_nolen_const (mg); 1025 const char *s = MgPV_nolen_const (mg);
757 1026
758 if (*s == '_') 1027 if (*s == '_')
759 { 1028 {
760 SV **svp = 0; 1029 SV **svp = 0;
761 1030
762 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1031 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
763 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1032 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
764 1033
765 if (svp) 1034 if (svp)
766 { 1035 {
767 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1036 SV *ssv;
1037
1038 if (!*svp)
1039 ssv = &PL_sv_undef;
1040 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1041 ssv = sv_2mortal (newRV_inc (*svp));
1042 else
1043 ssv = *svp;
1044
1045 sv_setsv (sv, ssv);
768 return 0; 1046 return 0;
769 } 1047 }
770 } 1048 }
771 1049
772 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1050 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
773} 1051}
774 1052
775static int 1053static int ecb_cold
776coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1054coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
777{ 1055{
778 const char *s = MgPV_nolen_const (mg); 1056 const char *s = MgPV_nolen_const (mg);
779 1057
780 if (*s == '_') 1058 if (*s == '_')
… …
794 } 1072 }
795 1073
796 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1074 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
797} 1075}
798 1076
799static int 1077static int ecb_cold
800coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1078coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
801{ 1079{
802 const char *s = MgPV_nolen_const (mg); 1080 const char *s = MgPV_nolen_const (mg);
803 1081
804 if (*s == '_') 1082 if (*s == '_')
… …
809 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1087 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
810 1088
811 if (svp) 1089 if (svp)
812 { 1090 {
813 SV *old = *svp; 1091 SV *old = *svp;
814 *svp = newSVsv (sv); 1092 *svp = SvOK (sv) ? newSVsv (sv) : 0;
815 SvREFCNT_dec (old); 1093 SvREFCNT_dec (old);
816 return 0; 1094 return 0;
817 } 1095 }
818 } 1096 }
819 1097
… …
831slf_check_nop (pTHX_ struct CoroSLF *frame) 1109slf_check_nop (pTHX_ struct CoroSLF *frame)
832{ 1110{
833 return 0; 1111 return 0;
834} 1112}
835 1113
836static UNOP coro_setup_op; 1114static int
1115slf_check_repeat (pTHX_ struct CoroSLF *frame)
1116{
1117 return 1;
1118}
837 1119
838static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1120static UNOP init_perl_op;
1121
1122ecb_noinline static void /* noinline to keep it out of the transfer fast path */
839coro_setup (pTHX_ struct coro *coro) 1123init_perl (pTHX_ struct coro *coro)
840{ 1124{
841 /* 1125 /*
842 * emulate part of the perl startup here. 1126 * emulate part of the perl startup here.
843 */ 1127 */
844 coro_init_stacks (aTHX); 1128 coro_init_stacks (aTHX);
845 1129
846 PL_runops = RUNOPS_DEFAULT; 1130 PL_runops = RUNOPS_DEFAULT;
847 PL_curcop = &PL_compiling; 1131 PL_curcop = &PL_compiling;
848 PL_in_eval = EVAL_NULL; 1132 PL_in_eval = EVAL_NULL;
849 PL_comppad = 0; 1133 PL_comppad = 0;
1134 PL_comppad_name = 0;
1135 PL_comppad_name_fill = 0;
1136 PL_comppad_name_floor = 0;
850 PL_curpm = 0; 1137 PL_curpm = 0;
851 PL_curpad = 0; 1138 PL_curpad = 0;
852 PL_localizing = 0; 1139 PL_localizing = 0;
853 PL_dirty = 0;
854 PL_restartop = 0; 1140 PL_restartop = 0;
855#if PERL_VERSION_ATLEAST (5,10,0) 1141#if PERL_VERSION_ATLEAST (5,10,0)
856 PL_parser = 0; 1142 PL_parser = 0;
857#endif 1143#endif
1144 PL_hints = 0;
858 1145
859 /* recreate the die/warn hooks */ 1146 /* recreate the die/warn hooks */
860 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1147 PL_diehook = SvREFCNT_inc (rv_diehook);
861 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1148 PL_warnhook = SvREFCNT_inc (rv_warnhook);
862 1149
863 GvSV (PL_defgv) = newSV (0); 1150 GvSV (PL_defgv) = newSV (0);
864 GvAV (PL_defgv) = coro->args; coro->args = 0; 1151 GvAV (PL_defgv) = coro->args; coro->args = 0;
865 GvSV (PL_errgv) = newSV (0); 1152 GvSV (PL_errgv) = newSV (0);
866 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1153 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1154 GvHV (PL_hintgv) = newHV ();
1155#if PERL_VERSION_ATLEAST (5,10,0)
1156 hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
1157#endif
867 PL_rs = newSVsv (GvSV (irsgv)); 1158 PL_rs = newSVsv (GvSV (irsgv));
868 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1159 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
869 1160
870 { 1161 {
871 dSP; 1162 dSP;
… …
886 /* this newly created coroutine might be run on an existing cctx which most 1177 /* 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. 1178 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
888 */ 1179 */
889 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1180 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 */ 1181 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1182 slf_frame.destroy = 0;
891 1183
892 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1184 /* 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; 1185 init_perl_op.op_next = PL_op;
894 coro_setup_op.op_type = OP_CUSTOM; 1186 init_perl_op.op_type = OP_ENTERSUB;
895 coro_setup_op.op_ppaddr = pp_slf; 1187 init_perl_op.op_ppaddr = pp_slf;
896 /* no flags etc. required, as an init function won't be called */ 1188 /* no flags etc. required, as an init function won't be called */
897 1189
898 PL_op = (OP *)&coro_setup_op; 1190 PL_op = (OP *)&init_perl_op;
899 1191
900 /* copy throw, in case it was set before coro_setup */ 1192 /* copy throw, in case it was set before init_perl */
901 CORO_THROW = coro->except; 1193 CORO_THROW = coro->except;
902}
903 1194
1195 SWAP_SVS (coro);
1196
1197 if (ecb_expect_false (enable_times))
1198 {
1199 coro_times_update ();
1200 coro_times_sub (coro);
1201 }
1202}
1203
904static void 1204static void
905coro_destruct (pTHX_ struct coro *coro) 1205coro_unwind_stacks (pTHX)
906{ 1206{
907 if (!IN_DESTRUCT) 1207 if (!IN_DESTRUCT)
908 { 1208 {
909 /* restore all saved variables and stuff */ 1209 /* restore all saved variables and stuff */
910 LEAVE_SCOPE (0); 1210 LEAVE_SCOPE (0);
… …
918 POPSTACK_TO (PL_mainstack); 1218 POPSTACK_TO (PL_mainstack);
919 1219
920 /* unwind main stack */ 1220 /* unwind main stack */
921 dounwind (-1); 1221 dounwind (-1);
922 } 1222 }
1223}
923 1224
924 SvREFCNT_dec (GvSV (PL_defgv)); 1225static void
925 SvREFCNT_dec (GvAV (PL_defgv)); 1226destroy_perl (pTHX_ struct coro *coro)
926 SvREFCNT_dec (GvSV (PL_errgv)); 1227{
927 SvREFCNT_dec (PL_defoutgv); 1228 SV *svf [9];
928 SvREFCNT_dec (PL_rs);
929 SvREFCNT_dec (GvSV (irsgv));
930 1229
931 SvREFCNT_dec (PL_diehook);
932 SvREFCNT_dec (PL_warnhook);
933 1230 {
1231 SV *old_current = SvRV (coro_current);
1232 struct coro *current = SvSTATE (old_current);
1233
1234 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1235
1236 save_perl (aTHX_ current);
1237
1238 /* this will cause transfer_check to croak on block*/
1239 SvRV_set (coro_current, (SV *)coro->hv);
1240
1241 load_perl (aTHX_ coro);
1242
1243 coro_unwind_stacks (aTHX);
1244
1245 /* restore swapped sv's */
1246 SWAP_SVS (coro);
1247
1248 coro_destruct_stacks (aTHX);
1249
1250 /* now save some sv's to be free'd later */
1251 svf [0] = GvSV (PL_defgv);
1252 svf [1] = (SV *)GvAV (PL_defgv);
1253 svf [2] = GvSV (PL_errgv);
1254 svf [3] = (SV *)PL_defoutgv;
1255 svf [4] = PL_rs;
1256 svf [5] = GvSV (irsgv);
1257 svf [6] = (SV *)GvHV (PL_hintgv);
1258 svf [7] = PL_diehook;
1259 svf [8] = PL_warnhook;
1260 assert (9 == sizeof (svf) / sizeof (*svf));
1261
1262 SvRV_set (coro_current, old_current);
1263
1264 load_perl (aTHX_ current);
1265 }
1266
1267 {
1268 unsigned int i;
1269
1270 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1271 SvREFCNT_dec (svf [i]);
1272
934 SvREFCNT_dec (coro->saved_deffh); 1273 SvREFCNT_dec (coro->saved_deffh);
935 SvREFCNT_dec (coro->rouse_cb); 1274 SvREFCNT_dec (coro->rouse_cb);
936 SvREFCNT_dec (coro->invoke_cb); 1275 SvREFCNT_dec (coro->invoke_cb);
937 SvREFCNT_dec (coro->invoke_av); 1276 SvREFCNT_dec (coro->invoke_av);
938 1277 }
939 coro_destruct_stacks (aTHX);
940} 1278}
941 1279
942INLINE void 1280ecb_inline void
943free_coro_mortal (pTHX) 1281free_coro_mortal (pTHX)
944{ 1282{
945 if (expect_true (coro_mortal)) 1283 if (ecb_expect_true (coro_mortal))
946 { 1284 {
947 SvREFCNT_dec (coro_mortal); 1285 SvREFCNT_dec ((SV *)coro_mortal);
948 coro_mortal = 0; 1286 coro_mortal = 0;
949 } 1287 }
950} 1288}
951 1289
952static int 1290static int
953runops_trace (pTHX) 1291runops_trace (pTHX)
954{ 1292{
955 COP *oldcop = 0; 1293 COP *oldcop = 0;
956 int oldcxix = -2; 1294 int oldcxix = -2;
957 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
958 coro_cctx *cctx = coro->cctx;
959 1295
960 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1296 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
961 { 1297 {
962 PERL_ASYNC_CHECK (); 1298 PERL_ASYNC_CHECK ();
963 1299
964 if (cctx->flags & CC_TRACE_ALL) 1300 if (cctx_current->flags & CC_TRACE_ALL)
965 { 1301 {
966 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1302 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
967 { 1303 {
968 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1304 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
969 SV **bot, **top; 1305 SV **bot, **top;
970 AV *av = newAV (); /* return values */ 1306 AV *av = newAV (); /* return values */
971 SV **cb; 1307 SV **cb;
… …
1008 1344
1009 if (PL_curcop != &PL_compiling) 1345 if (PL_curcop != &PL_compiling)
1010 { 1346 {
1011 SV **cb; 1347 SV **cb;
1012 1348
1013 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1349 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1014 { 1350 {
1015 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1351 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1016 1352
1017 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1353 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1018 { 1354 {
1019 runops_proc_t old_runops = PL_runops;
1020 dSP; 1355 dSP;
1021 GV *gv = CvGV (cx->blk_sub.cv); 1356 GV *gv = CvGV (cx->blk_sub.cv);
1022 SV *fullname = sv_2mortal (newSV (0)); 1357 SV *fullname = sv_2mortal (newSV (0));
1023 1358
1024 if (isGV (gv)) 1359 if (isGV (gv))
… …
1042 } 1377 }
1043 1378
1044 oldcxix = cxstack_ix; 1379 oldcxix = cxstack_ix;
1045 } 1380 }
1046 1381
1047 if (cctx->flags & CC_TRACE_LINE) 1382 if (cctx_current->flags & CC_TRACE_LINE)
1048 { 1383 {
1049 dSP; 1384 dSP;
1050 1385
1051 PL_runops = RUNOPS_DEFAULT; 1386 PL_runops = RUNOPS_DEFAULT;
1052 ENTER; 1387 ENTER;
… …
1071 1406
1072 TAINT_NOT; 1407 TAINT_NOT;
1073 return 0; 1408 return 0;
1074} 1409}
1075 1410
1076static struct coro_cctx *cctx_ssl_cctx;
1077static struct CoroSLF cctx_ssl_frame; 1411static struct CoroSLF cctx_ssl_frame;
1078 1412
1079static void 1413static void
1080slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1414slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1081{ 1415{
1082 ta->prev = (struct coro *)cctx_ssl_cctx;
1083 ta->next = 0; 1416 ta->prev = 0;
1084} 1417}
1085 1418
1086static int 1419static int
1087slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1420slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1088{ 1421{
… …
1090 1423
1091 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1424 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1092} 1425}
1093 1426
1094/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1427/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1095static void NOINLINE 1428static void ecb_noinline
1096cctx_prepare (pTHX_ coro_cctx *cctx) 1429cctx_prepare (pTHX)
1097{ 1430{
1098 PL_top_env = &PL_start_env; 1431 PL_top_env = &PL_start_env;
1099 1432
1100 if (cctx->flags & CC_TRACE) 1433 if (cctx_current->flags & CC_TRACE)
1101 PL_runops = runops_trace; 1434 PL_runops = runops_trace;
1102 1435
1103 /* we already must be executing an SLF op, there is no other valid way 1436 /* we already must be executing an SLF op, there is no other valid way
1104 * that can lead to creation of a new cctx */ 1437 * that can lead to creation of a new cctx */
1105 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1438 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1106 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1439 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1107 1440
1108 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1441 /* 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; 1442 cctx_ssl_frame = slf_frame;
1111 1443
1112 slf_frame.prepare = slf_prepare_set_stacklevel; 1444 slf_frame.prepare = slf_prepare_set_stacklevel;
1113 slf_frame.check = slf_check_set_stacklevel; 1445 slf_frame.check = slf_check_set_stacklevel;
1114} 1446}
1115 1447
1116/* the tail of transfer: execute stuff we can only do after a transfer */ 1448/* the tail of transfer: execute stuff we can only do after a transfer */
1117INLINE void 1449ecb_inline void
1118transfer_tail (pTHX) 1450transfer_tail (pTHX)
1119{ 1451{
1120 free_coro_mortal (aTHX); 1452 free_coro_mortal (aTHX);
1453}
1454
1455/* try to exit the same way perl's main function would do */
1456/* we do not bother resetting the environment or other things *7
1457/* that are not, uhm, essential */
1458/* this obviously also doesn't work when perl is embedded */
1459static void ecb_noinline ecb_cold
1460perlish_exit (pTHX)
1461{
1462 int exitstatus = perl_destruct (PL_curinterp);
1463 perl_free (PL_curinterp);
1464 exit (exitstatus);
1121} 1465}
1122 1466
1123/* 1467/*
1124 * this is a _very_ stripped down perl interpreter ;) 1468 * this is a _very_ stripped down perl interpreter ;)
1125 */ 1469 */
… …
1137 /* normally we would need to skip the entersub here */ 1481 /* normally we would need to skip the entersub here */
1138 /* not doing so will re-execute it, which is exactly what we want */ 1482 /* not doing so will re-execute it, which is exactly what we want */
1139 /* PL_nop = PL_nop->op_next */ 1483 /* PL_nop = PL_nop->op_next */
1140 1484
1141 /* inject a fake subroutine call to cctx_init */ 1485 /* inject a fake subroutine call to cctx_init */
1142 cctx_prepare (aTHX_ (coro_cctx *)arg); 1486 cctx_prepare (aTHX);
1143 1487
1144 /* cctx_run is the alternative tail of transfer() */ 1488 /* cctx_run is the alternative tail of transfer() */
1145 transfer_tail (aTHX); 1489 transfer_tail (aTHX);
1146 1490
1147 /* somebody or something will hit me for both perl_run and PL_restartop */ 1491 /* somebody or something will hit me for both perl_run and PL_restartop */
1148 PL_restartop = PL_op; 1492 PL_restartop = PL_op;
1149 perl_run (PL_curinterp); 1493 perl_run (PL_curinterp);
1150 /* 1494 /*
1151 * Unfortunately, there is no way to get at the return values of the 1495 * Unfortunately, there is no way to get at the return values of the
1152 * coro body here, as perl_run destroys these 1496 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1497 * runtime errors here, as this is just a random interpreter, not a thread.
1153 */ 1498 */
1154 1499
1155 /* 1500 /*
1156 * If perl-run returns we assume exit() was being called or the coro 1501 * 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) 1502 * 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 1503 * 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" 1504 * doing in that case. YMMV.
1160 * coroutine as Coro has no such concept
1161 */ 1505 */
1162 PL_top_env = main_top_env; 1506 perlish_exit (aTHX);
1163 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1164 } 1507 }
1165} 1508}
1166 1509
1167static coro_cctx * 1510static coro_cctx *
1168cctx_new () 1511cctx_new (void)
1169{ 1512{
1170 coro_cctx *cctx; 1513 coro_cctx *cctx;
1171 1514
1172 ++cctx_count; 1515 ++cctx_count;
1173 New (0, cctx, 1, coro_cctx); 1516 New (0, cctx, 1, coro_cctx);
… …
1179 return cctx; 1522 return cctx;
1180} 1523}
1181 1524
1182/* create a new cctx only suitable as source */ 1525/* create a new cctx only suitable as source */
1183static coro_cctx * 1526static coro_cctx *
1184cctx_new_empty () 1527cctx_new_empty (void)
1185{ 1528{
1186 coro_cctx *cctx = cctx_new (); 1529 coro_cctx *cctx = cctx_new ();
1187 1530
1188 cctx->sptr = 0; 1531 cctx->stack.sptr = 0;
1189 coro_create (&cctx->cctx, 0, 0, 0, 0); 1532 coro_create (&cctx->cctx, 0, 0, 0, 0);
1190 1533
1191 return cctx; 1534 return cctx;
1192} 1535}
1193 1536
1194/* create a new cctx suitable as destination/running a perl interpreter */ 1537/* create a new cctx suitable as destination/running a perl interpreter */
1195static coro_cctx * 1538static coro_cctx *
1196cctx_new_run () 1539cctx_new_run (void)
1197{ 1540{
1198 coro_cctx *cctx = cctx_new (); 1541 coro_cctx *cctx = cctx_new ();
1199 void *stack_start;
1200 size_t stack_size;
1201 1542
1202#if HAVE_MMAP 1543 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 } 1544 {
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."); 1545 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1225 _exit (EXIT_FAILURE); 1546 _exit (EXIT_FAILURE);
1226 }
1227
1228 stack_start = cctx->sptr;
1229 stack_size = cctx->ssize;
1230 } 1547 }
1231 1548
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); 1549 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1237 1550
1238 return cctx; 1551 return cctx;
1239} 1552}
1240 1553
1241static void 1554static void
1242cctx_destroy (coro_cctx *cctx) 1555cctx_destroy (coro_cctx *cctx)
1243{ 1556{
1244 if (!cctx) 1557 if (!cctx)
1245 return; 1558 return;
1246 1559
1560 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1561
1247 --cctx_count; 1562 --cctx_count;
1248 coro_destroy (&cctx->cctx); 1563 coro_destroy (&cctx->cctx);
1249 1564
1250 /* coro_transfer creates new, empty cctx's */ 1565 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 1566
1265 Safefree (cctx); 1567 Safefree (cctx);
1266} 1568}
1267 1569
1268/* wether this cctx should be destructed */ 1570/* wether this cctx should be destructed */
1269#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1571#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1270 1572
1271static coro_cctx * 1573static coro_cctx *
1272cctx_get (pTHX) 1574cctx_get (pTHX)
1273{ 1575{
1274 while (expect_true (cctx_first)) 1576 while (ecb_expect_true (cctx_first))
1275 { 1577 {
1276 coro_cctx *cctx = cctx_first; 1578 coro_cctx *cctx = cctx_first;
1277 cctx_first = cctx->next; 1579 cctx_first = cctx->next;
1278 --cctx_idle; 1580 --cctx_idle;
1279 1581
1280 if (expect_true (!CCTX_EXPIRED (cctx))) 1582 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1281 return cctx; 1583 return cctx;
1282 1584
1283 cctx_destroy (cctx); 1585 cctx_destroy (cctx);
1284 } 1586 }
1285 1587
… …
1287} 1589}
1288 1590
1289static void 1591static void
1290cctx_put (coro_cctx *cctx) 1592cctx_put (coro_cctx *cctx)
1291{ 1593{
1292 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1594 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1293 1595
1294 /* free another cctx if overlimit */ 1596 /* free another cctx if overlimit */
1295 if (expect_false (cctx_idle >= cctx_max_idle)) 1597 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1296 { 1598 {
1297 coro_cctx *first = cctx_first; 1599 coro_cctx *first = cctx_first;
1298 cctx_first = first->next; 1600 cctx_first = first->next;
1299 --cctx_idle; 1601 --cctx_idle;
1300 1602
… …
1311static void 1613static void
1312transfer_check (pTHX_ struct coro *prev, struct coro *next) 1614transfer_check (pTHX_ struct coro *prev, struct coro *next)
1313{ 1615{
1314 /* TODO: throwing up here is considered harmful */ 1616 /* TODO: throwing up here is considered harmful */
1315 1617
1316 if (expect_true (prev != next)) 1618 if (ecb_expect_true (prev != next))
1317 { 1619 {
1318 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1620 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,"); 1621 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1320 1622
1321 if (expect_false (next->flags & CF_RUNNING)) 1623 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,"); 1624 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1326 1625
1327#if !PERL_VERSION_ATLEAST (5,10,0) 1626#if !PERL_VERSION_ATLEAST (5,10,0)
1328 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1627 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,"); 1628 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1330#endif 1629#endif
1331 } 1630 }
1332} 1631}
1333 1632
1334/* always use the TRANSFER macro */ 1633/* always use the TRANSFER macro */
1335static void NOINLINE /* noinline so we have a fixed stackframe */ 1634static void ecb_noinline /* noinline so we have a fixed stackframe */
1336transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1635transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1337{ 1636{
1338 dSTACKLEVEL; 1637 dSTACKLEVEL;
1339 1638
1340 /* sometimes transfer is only called to set idle_sp */ 1639 /* sometimes transfer is only called to set idle_sp */
1341 if (expect_false (!next)) 1640 if (ecb_expect_false (!prev))
1342 { 1641 {
1343 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1642 cctx_current->idle_sp = STACKLEVEL;
1344 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1643 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1345 } 1644 }
1346 else if (expect_true (prev != next)) 1645 else if (ecb_expect_true (prev != next))
1347 { 1646 {
1348 coro_cctx *prev__cctx; 1647 coro_cctx *cctx_prev;
1349 1648
1350 if (expect_false (prev->flags & CF_NEW)) 1649 if (ecb_expect_false (prev->flags & CF_NEW))
1351 { 1650 {
1352 /* create a new empty/source context */ 1651 /* create a new empty/source context */
1353 prev->cctx = cctx_new_empty ();
1354 prev->flags &= ~CF_NEW; 1652 prev->flags &= ~CF_NEW;
1355 prev->flags |= CF_RUNNING; 1653 prev->flags |= CF_RUNNING;
1356 } 1654 }
1357 1655
1358 prev->flags &= ~CF_RUNNING; 1656 prev->flags &= ~CF_RUNNING;
1359 next->flags |= CF_RUNNING; 1657 next->flags |= CF_RUNNING;
1360 1658
1361 /* first get rid of the old state */ 1659 /* first get rid of the old state */
1362 save_perl (aTHX_ prev); 1660 save_perl (aTHX_ prev);
1363 1661
1364 if (expect_false (next->flags & CF_NEW)) 1662 if (ecb_expect_false (next->flags & CF_NEW))
1365 { 1663 {
1366 /* need to start coroutine */ 1664 /* need to start coroutine */
1367 next->flags &= ~CF_NEW; 1665 next->flags &= ~CF_NEW;
1368 /* setup coroutine call */ 1666 /* setup coroutine call */
1369 coro_setup (aTHX_ next); 1667 init_perl (aTHX_ next);
1370 } 1668 }
1371 else 1669 else
1372 load_perl (aTHX_ next); 1670 load_perl (aTHX_ next);
1373 1671
1374 prev__cctx = prev->cctx;
1375
1376 /* possibly untie and reuse the cctx */ 1672 /* possibly untie and reuse the cctx */
1377 if (expect_true ( 1673 if (ecb_expect_true (
1378 prev__cctx->idle_sp == STACKLEVEL 1674 cctx_current->idle_sp == STACKLEVEL
1379 && !(prev__cctx->flags & CC_TRACE) 1675 && !(cctx_current->flags & CC_TRACE)
1380 && !force_cctx 1676 && !force_cctx
1381 )) 1677 ))
1382 { 1678 {
1383 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1679 /* 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)); 1680 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1385 1681
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 */ 1682 /* 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 */ 1683 /* without this the next cctx_get might destroy the running cctx while still in use */
1390 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1684 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1391 if (!next->cctx) 1685 if (ecb_expect_true (!next->cctx))
1392 next->cctx = cctx_get (aTHX); 1686 next->cctx = cctx_get (aTHX);
1393 1687
1394 cctx_put (prev__cctx); 1688 cctx_put (cctx_current);
1395 } 1689 }
1690 else
1691 prev->cctx = cctx_current;
1396 1692
1397 ++next->usecount; 1693 ++next->usecount;
1398 1694
1399 if (expect_true (!next->cctx)) 1695 cctx_prev = cctx_current;
1400 next->cctx = cctx_get (aTHX); 1696 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1401 1697
1402 if (expect_false (prev__cctx != next->cctx)) 1698 next->cctx = 0;
1699
1700 if (ecb_expect_false (cctx_prev != cctx_current))
1403 { 1701 {
1404 prev__cctx->top_env = PL_top_env; 1702 cctx_prev->top_env = PL_top_env;
1405 PL_top_env = next->cctx->top_env; 1703 PL_top_env = cctx_current->top_env;
1406 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1704 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1407 } 1705 }
1408 1706
1409 transfer_tail (aTHX); 1707 transfer_tail (aTHX);
1410 } 1708 }
1411} 1709}
… …
1413#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1711#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) 1712#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1415 1713
1416/** high level stuff ********************************************************/ 1714/** high level stuff ********************************************************/
1417 1715
1716/* this function is actually Coro, not Coro::State, but we call it from here */
1717/* because it is convenient - but it hasn't been declared yet for that reason */
1418static int 1718static void
1719coro_call_on_destroy (pTHX_ struct coro *coro);
1720
1721static void
1419coro_state_destroy (pTHX_ struct coro *coro) 1722coro_state_destroy (pTHX_ struct coro *coro)
1420{ 1723{
1421 if (coro->flags & CF_DESTROYED) 1724 if (coro->flags & CF_ZOMBIE)
1422 return 0; 1725 return;
1423 1726
1424 if (coro->on_destroy)
1425 coro->on_destroy (aTHX_ coro); 1727 slf_destroy (aTHX_ coro);
1426 1728
1427 coro->flags |= CF_DESTROYED; 1729 coro->flags |= CF_ZOMBIE;
1428 1730
1429 if (coro->flags & CF_READY) 1731 if (coro->flags & CF_READY)
1430 { 1732 {
1431 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1733 /* reduce nready, as destroying a ready coro effectively unreadies it */
1432 /* alternative: look through all ready queues and remove the coro */ 1734 /* alternative: look through all ready queues and remove the coro */
1433 --coro_nready; 1735 --coro_nready;
1434 } 1736 }
1435 else 1737 else
1436 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1738 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1437 1739
1438 if (coro->mainstack && coro->mainstack != main_mainstack) 1740 if (coro->next) coro->next->prev = coro->prev;
1439 { 1741 if (coro->prev) coro->prev->next = coro->next;
1440 struct coro temp; 1742 if (coro == coro_first) coro_first = coro->next;
1441 1743
1442 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1744 if (coro->mainstack
1443 1745 && coro->mainstack != main_mainstack
1444 save_perl (aTHX_ &temp); 1746 && coro->slot
1747 && !PL_dirty)
1445 load_perl (aTHX_ coro); 1748 destroy_perl (aTHX_ coro);
1446
1447 coro_destruct (aTHX_ coro);
1448
1449 load_perl (aTHX_ &temp);
1450
1451 coro->slot = 0;
1452 }
1453 1749
1454 cctx_destroy (coro->cctx); 1750 cctx_destroy (coro->cctx);
1455 SvREFCNT_dec (coro->startcv); 1751 SvREFCNT_dec (coro->startcv);
1456 SvREFCNT_dec (coro->args); 1752 SvREFCNT_dec (coro->args);
1753 SvREFCNT_dec (coro->swap_sv);
1457 SvREFCNT_dec (CORO_THROW); 1754 SvREFCNT_dec (CORO_THROW);
1458 1755
1459 if (coro->next) coro->next->prev = coro->prev; 1756 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 1757
1463 return 1; 1758 /* more destruction mayhem in coro_state_free */
1464} 1759}
1465 1760
1466static int 1761static int
1467coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1762coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1468{ 1763{
1469 struct coro *coro = (struct coro *)mg->mg_ptr; 1764 struct coro *coro = (struct coro *)mg->mg_ptr;
1470 mg->mg_ptr = 0; 1765 mg->mg_ptr = 0;
1471 1766
1472 coro->hv = 0;
1473
1474 if (--coro->refcnt < 0)
1475 {
1476 coro_state_destroy (aTHX_ coro); 1767 coro_state_destroy (aTHX_ coro);
1768 SvREFCNT_dec (coro->on_destroy);
1769 SvREFCNT_dec (coro->status);
1770
1477 Safefree (coro); 1771 Safefree (coro);
1478 }
1479 1772
1480 return 0; 1773 return 0;
1481} 1774}
1482 1775
1483static int 1776static int ecb_cold
1484coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1777coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1485{ 1778{
1486 struct coro *coro = (struct coro *)mg->mg_ptr; 1779 /* called when perl clones the current process the slow way (windows process emulation) */
1487 1780 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1488 ++coro->refcnt; 1781 mg->mg_ptr = 0;
1782 mg->mg_virtual = 0;
1489 1783
1490 return 0; 1784 return 0;
1491} 1785}
1492 1786
1493static MGVTBL coro_state_vtbl = { 1787static MGVTBL coro_state_vtbl = {
… …
1516 1810
1517 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1811 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1518 TRANSFER (ta, 1); 1812 TRANSFER (ta, 1);
1519} 1813}
1520 1814
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 ********************************************************************/ 1815/** Coro ********************************************************************/
1545 1816
1546INLINE void 1817ecb_inline void
1547coro_enq (pTHX_ struct coro *coro) 1818coro_enq (pTHX_ struct coro *coro)
1548{ 1819{
1549 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1820 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1550}
1551 1821
1552INLINE SV * 1822 SvREFCNT_inc_NN (coro->hv);
1823
1824 coro->next_ready = 0;
1825 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1826 ready [1] = coro;
1827}
1828
1829ecb_inline struct coro *
1553coro_deq (pTHX) 1830coro_deq (pTHX)
1554{ 1831{
1555 int prio; 1832 int prio;
1556 1833
1557 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1834 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1558 if (AvFILLp (coro_ready [prio]) >= 0) 1835 {
1559 return av_shift (coro_ready [prio]); 1836 struct coro **ready = coro_ready [prio];
1837
1838 if (ready [0])
1839 {
1840 struct coro *coro = ready [0];
1841 ready [0] = coro->next_ready;
1842 return coro;
1843 }
1844 }
1560 1845
1561 return 0; 1846 return 0;
1847}
1848
1849static void
1850invoke_sv_ready_hook_helper (void)
1851{
1852 dTHX;
1853 dSP;
1854
1855 ENTER;
1856 SAVETMPS;
1857
1858 PUSHMARK (SP);
1859 PUTBACK;
1860 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1861
1862 FREETMPS;
1863 LEAVE;
1562} 1864}
1563 1865
1564static int 1866static int
1565api_ready (pTHX_ SV *coro_sv) 1867api_ready (pTHX_ SV *coro_sv)
1566{ 1868{
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); 1869 struct coro *coro = SvSTATE (coro_sv);
1575 1870
1576 if (coro->flags & CF_READY) 1871 if (coro->flags & CF_READY)
1577 return 0; 1872 return 0;
1578 1873
1579 coro->flags |= CF_READY; 1874 coro->flags |= CF_READY;
1580 1875
1581 sv_hook = coro_nready ? 0 : coro_readyhook;
1582 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1583
1584 coro_enq (aTHX_ coro); 1876 coro_enq (aTHX_ coro);
1585 ++coro_nready;
1586 1877
1587 if (sv_hook) 1878 if (!coro_nready++)
1588 { 1879 if (coroapi.readyhook)
1589 dSP; 1880 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 1881
1605 return 1; 1882 return 1;
1606} 1883}
1607 1884
1608static int 1885static int
1609api_is_ready (pTHX_ SV *coro_sv) 1886api_is_ready (pTHX_ SV *coro_sv)
1610{ 1887{
1611 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1888 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1612} 1889}
1613 1890
1614INLINE void 1891/* expects to own a reference to next->hv */
1892ecb_inline void
1615prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1893prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1616{ 1894{
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); 1895 SV *prev_sv = SvRV (coro_current);
1896
1656 ta->prev = SvSTATE_hv (prev_sv); 1897 ta->prev = SvSTATE_hv (prev_sv);
1898 ta->next = next;
1899
1657 TRANSFER_CHECK (*ta); 1900 TRANSFER_CHECK (*ta);
1658 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1901
1659 ta->next->flags &= ~CF_READY;
1660 SvRV_set (coro_current, next_sv); 1902 SvRV_set (coro_current, (SV *)next->hv);
1661 1903
1662 free_coro_mortal (aTHX); 1904 free_coro_mortal (aTHX);
1663 coro_mortal = prev_sv; 1905 coro_mortal = prev_sv;
1664} 1906}
1665 1907
1666INLINE void 1908static void
1909prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1910{
1911 for (;;)
1912 {
1913 struct coro *next = coro_deq (aTHX);
1914
1915 if (ecb_expect_true (next))
1916 {
1917 /* cannot transfer to destroyed coros, skip and look for next */
1918 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1919 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1920 else
1921 {
1922 next->flags &= ~CF_READY;
1923 --coro_nready;
1924
1925 prepare_schedule_to (aTHX_ ta, next);
1926 break;
1927 }
1928 }
1929 else
1930 {
1931 /* nothing to schedule: call the idle handler */
1932 if (SvROK (sv_idle)
1933 && SvOBJECT (SvRV (sv_idle)))
1934 {
1935 if (SvRV (sv_idle) == SvRV (coro_current))
1936 {
1937 require_pv ("Carp");
1938
1939 {
1940 dSP;
1941
1942 ENTER;
1943 SAVETMPS;
1944
1945 PUSHMARK (SP);
1946 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1947 PUTBACK;
1948 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1949
1950 FREETMPS;
1951 LEAVE;
1952 }
1953 }
1954
1955 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1956 api_ready (aTHX_ SvRV (sv_idle));
1957 --coro_nready;
1958 }
1959 else
1960 {
1961 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1962 dSP;
1963
1964 ENTER;
1965 SAVETMPS;
1966
1967 PUSHMARK (SP);
1968 PUTBACK;
1969 call_sv (sv_idle, G_VOID | G_DISCARD);
1970
1971 FREETMPS;
1972 LEAVE;
1973 }
1974 }
1975 }
1976}
1977
1978ecb_inline void
1667prepare_cede (pTHX_ struct coro_transfer_args *ta) 1979prepare_cede (pTHX_ struct coro_transfer_args *ta)
1668{ 1980{
1669 api_ready (aTHX_ coro_current); 1981 api_ready (aTHX_ coro_current);
1670 prepare_schedule (aTHX_ ta); 1982 prepare_schedule (aTHX_ ta);
1671} 1983}
1672 1984
1673INLINE void 1985ecb_inline void
1674prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1986prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1675{ 1987{
1676 SV *prev = SvRV (coro_current); 1988 SV *prev = SvRV (coro_current);
1677 1989
1678 if (coro_nready) 1990 if (coro_nready)
… …
1691 2003
1692 prepare_schedule (aTHX_ &ta); 2004 prepare_schedule (aTHX_ &ta);
1693 TRANSFER (ta, 1); 2005 TRANSFER (ta, 1);
1694} 2006}
1695 2007
2008static void
2009api_schedule_to (pTHX_ SV *coro_sv)
2010{
2011 struct coro_transfer_args ta;
2012 struct coro *next = SvSTATE (coro_sv);
2013
2014 SvREFCNT_inc_NN (coro_sv);
2015 prepare_schedule_to (aTHX_ &ta, next);
2016}
2017
1696static int 2018static int
1697api_cede (pTHX) 2019api_cede (pTHX)
1698{ 2020{
1699 struct coro_transfer_args ta; 2021 struct coro_transfer_args ta;
1700 2022
1701 prepare_cede (aTHX_ &ta); 2023 prepare_cede (aTHX_ &ta);
1702 2024
1703 if (expect_true (ta.prev != ta.next)) 2025 if (ecb_expect_true (ta.prev != ta.next))
1704 { 2026 {
1705 TRANSFER (ta, 1); 2027 TRANSFER (ta, 1);
1706 return 1; 2028 return 1;
1707 } 2029 }
1708 else 2030 else
… …
1727static void 2049static void
1728api_trace (pTHX_ SV *coro_sv, int flags) 2050api_trace (pTHX_ SV *coro_sv, int flags)
1729{ 2051{
1730 struct coro *coro = SvSTATE (coro_sv); 2052 struct coro *coro = SvSTATE (coro_sv);
1731 2053
2054 if (coro->flags & CF_RUNNING)
2055 croak ("cannot enable tracing on a running coroutine, caught");
2056
1732 if (flags & CC_TRACE) 2057 if (flags & CC_TRACE)
1733 { 2058 {
1734 if (!coro->cctx) 2059 if (!coro->cctx)
1735 coro->cctx = cctx_new_run (); 2060 coro->cctx = cctx_new_run ();
1736 else if (!(coro->cctx->flags & CC_TRACE)) 2061 else if (!(coro->cctx->flags & CC_TRACE))
1737 croak ("cannot enable tracing on coroutine with custom stack,"); 2062 croak ("cannot enable tracing on coroutine with custom stack, caught");
1738 2063
1739 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2064 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1740 } 2065 }
1741 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2066 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1742 { 2067 {
… …
1747 else 2072 else
1748 coro->slot->runops = RUNOPS_DEFAULT; 2073 coro->slot->runops = RUNOPS_DEFAULT;
1749 } 2074 }
1750} 2075}
1751 2076
2077static void
2078coro_push_av (pTHX_ AV *av, I32 gimme_v)
2079{
2080 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2081 {
2082 dSP;
2083
2084 if (gimme_v == G_SCALAR)
2085 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2086 else
2087 {
2088 int i;
2089 EXTEND (SP, AvFILLp (av) + 1);
2090
2091 for (i = 0; i <= AvFILLp (av); ++i)
2092 PUSHs (AvARRAY (av)[i]);
2093 }
2094
2095 PUTBACK;
2096 }
2097}
2098
2099static void
2100coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2101{
2102 if (!coro->on_destroy)
2103 coro->on_destroy = newAV ();
2104
2105 av_push (coro->on_destroy, cb);
2106}
2107
2108static void
2109slf_destroy_join (pTHX_ struct CoroSLF *frame)
2110{
2111 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2112}
2113
2114static int
2115slf_check_join (pTHX_ struct CoroSLF *frame)
2116{
2117 struct coro *coro = (struct coro *)frame->data;
2118
2119 if (!coro->status)
2120 return 1;
2121
2122 frame->destroy = 0;
2123
2124 coro_push_av (aTHX_ coro->status, GIMME_V);
2125
2126 SvREFCNT_dec ((SV *)coro->hv);
2127
2128 return 0;
2129}
2130
2131static void
2132slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2133{
2134 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2135
2136 if (items > 1)
2137 croak ("join called with too many arguments");
2138
2139 if (coro->status)
2140 frame->prepare = prepare_nop;
2141 else
2142 {
2143 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2144 frame->prepare = prepare_schedule;
2145 }
2146
2147 frame->check = slf_check_join;
2148 frame->destroy = slf_destroy_join;
2149 frame->data = (void *)coro;
2150 SvREFCNT_inc (coro->hv);
2151}
2152
2153static void
2154coro_call_on_destroy (pTHX_ struct coro *coro)
2155{
2156 AV *od = coro->on_destroy;
2157
2158 if (!od)
2159 return;
2160
2161 coro->on_destroy = 0;
2162 sv_2mortal ((SV *)od);
2163
2164 while (AvFILLp (od) >= 0)
2165 {
2166 SV *cb = sv_2mortal (av_pop (od));
2167
2168 /* coro hv's (and only hv's at the moment) are supported as well */
2169 if (SvSTATEhv_p (aTHX_ cb))
2170 api_ready (aTHX_ cb);
2171 else
2172 {
2173 dSP; /* don't disturb outer sp */
2174 PUSHMARK (SP);
2175
2176 if (coro->status)
2177 {
2178 PUTBACK;
2179 coro_push_av (aTHX_ coro->status, G_ARRAY);
2180 SPAGAIN;
2181 }
2182
2183 PUTBACK;
2184 call_sv (cb, G_VOID | G_DISCARD);
2185 }
2186 }
2187}
2188
2189static void
2190coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2191{
2192 AV *av;
2193
2194 if (coro->status)
2195 {
2196 av = coro->status;
2197 av_clear (av);
2198 }
2199 else
2200 av = coro->status = newAV ();
2201
2202 /* items are actually not so common, so optimise for this case */
2203 if (items)
2204 {
2205 int i;
2206
2207 av_extend (av, items - 1);
2208
2209 for (i = 0; i < items; ++i)
2210 av_push (av, SvREFCNT_inc_NN (arg [i]));
2211 }
2212}
2213
2214static void
2215slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2216{
2217 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2218 api_ready (aTHX_ sv_manager);
2219
2220 frame->prepare = prepare_schedule;
2221 frame->check = slf_check_repeat;
2222
2223 /* as a minor optimisation, we could unwind all stacks here */
2224 /* but that puts extra pressure on pp_slf, and is not worth much */
2225 /*coro_unwind_stacks (aTHX);*/
2226}
2227
2228static void
2229slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2230{
2231 HV *coro_hv = (HV *)SvRV (coro_current);
2232
2233 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2234 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2235}
2236
2237static void
2238slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2239{
2240 HV *coro_hv;
2241 struct coro *coro;
2242
2243 if (items <= 0)
2244 croak ("Coro::cancel called without coro object,");
2245
2246 coro = SvSTATE (arg [0]);
2247 coro_hv = coro->hv;
2248
2249 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2250
2251 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2252 {
2253 /* coro currently busy cancelling something, so just notify it */
2254 coro->slf_frame.data = (void *)coro;
2255
2256 frame->prepare = prepare_nop;
2257 frame->check = slf_check_nop;
2258 }
2259 else if (coro_hv == (HV *)SvRV (coro_current))
2260 {
2261 /* cancelling the current coro is allowed, and equals terminate */
2262 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2263 }
2264 else
2265 {
2266 struct coro *self = SvSTATE_current;
2267
2268 if (!self)
2269 croak ("Coro::cancel called outside of thread content,");
2270
2271 /* otherwise we cancel directly, purely for speed reasons
2272 * unfortunately, this requires some magic trickery, as
2273 * somebody else could cancel us, so we have to fight the cancellation.
2274 * this is ugly, and hopefully fully worth the extra speed.
2275 * besides, I can't get the slow-but-safe version working...
2276 */
2277 slf_frame.data = 0;
2278 self->flags |= CF_NOCANCEL;
2279 coro_state_destroy (aTHX_ coro);
2280 self->flags &= ~CF_NOCANCEL;
2281
2282 if (slf_frame.data)
2283 {
2284 /* while we were busy we have been cancelled, so terminate */
2285 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2286 }
2287 else
2288 {
2289 frame->prepare = prepare_nop;
2290 frame->check = slf_check_nop;
2291 }
2292 }
2293}
2294
2295static int
2296slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2297{
2298 frame->prepare = 0;
2299 coro_unwind_stacks (aTHX);
2300
2301 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2302
2303 return 1;
2304}
2305
2306static int
2307safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2308{
2309 if (coro->cctx)
2310 croak ("coro inside C callback, unable to cancel at this time, caught");
2311
2312 if (coro->flags & CF_NEW)
2313 {
2314 coro_set_status (aTHX_ coro, arg, items);
2315 coro_state_destroy (aTHX_ coro);
2316 }
2317 else
2318 {
2319 if (!coro->slf_frame.prepare)
2320 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2321
2322 slf_destroy (aTHX_ coro);
2323
2324 coro_set_status (aTHX_ coro, arg, items);
2325 coro->slf_frame.prepare = prepare_nop;
2326 coro->slf_frame.check = slf_check_safe_cancel;
2327
2328 api_ready (aTHX_ (SV *)coro->hv);
2329 }
2330
2331 return 1;
2332}
2333
1752/*****************************************************************************/ 2334/*****************************************************************************/
1753/* async pool handler */ 2335/* async pool handler */
1754 2336
1755static int 2337static int
1756slf_check_pool_handler (pTHX_ struct CoroSLF *frame) 2338slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
… …
1760 2342
1761 if (!coro->invoke_cb) 2343 if (!coro->invoke_cb)
1762 return 1; /* loop till we have invoke */ 2344 return 1; /* loop till we have invoke */
1763 else 2345 else
1764 { 2346 {
1765 int i, len;
1766
1767 hv_store (hv, "desc", sizeof ("desc") - 1, 2347 hv_store (hv, "desc", sizeof ("desc") - 1,
1768 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); 2348 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1769 2349
1770 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); 2350 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1771
1772 len = av_len (coro->invoke_av);
1773 2351
1774 { 2352 {
1775 dSP; 2353 dSP;
1776 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; 2354 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1777 PUTBACK; 2355 PUTBACK;
… …
1789slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2367slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1790{ 2368{
1791 HV *hv = (HV *)SvRV (coro_current); 2369 HV *hv = (HV *)SvRV (coro_current);
1792 struct coro *coro = SvSTATE_hv ((SV *)hv); 2370 struct coro *coro = SvSTATE_hv ((SV *)hv);
1793 2371
1794 if (expect_true (coro->saved_deffh)) 2372 if (ecb_expect_true (coro->saved_deffh))
1795 { 2373 {
1796 /* subsequent iteration */ 2374 /* subsequent iteration */
1797 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2375 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1798 coro->saved_deffh = 0; 2376 coro->saved_deffh = 0;
1799 2377
1800 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2378 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1801 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2379 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1802 { 2380 {
1803 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2381 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1804 coro->invoke_av = newAV (); 2382 return;
1805
1806 frame->prepare = prepare_nop;
1807 } 2383 }
1808 else 2384 else
1809 { 2385 {
1810 av_clear (GvAV (PL_defgv)); 2386 av_clear (GvAV (PL_defgv));
1811 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2387 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1836 2412
1837static void 2413static void
1838coro_rouse_callback (pTHX_ CV *cv) 2414coro_rouse_callback (pTHX_ CV *cv)
1839{ 2415{
1840 dXSARGS; 2416 dXSARGS;
1841 SV *data = (SV *)GENSUB_ARG; 2417 SV *data = (SV *)S_GENSUB_ARG;
1842 2418
1843 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2419 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1844 { 2420 {
1845 /* first call, set args */ 2421 /* first call, set args */
1846 int i; 2422 SV *coro = SvRV (data);
1847 AV *av = newAV (); 2423 AV *av = newAV ();
1848 SV *coro = SvRV (data);
1849 2424
1850 SvRV_set (data, (SV *)av); 2425 SvRV_set (data, (SV *)av);
1851 api_ready (aTHX_ coro);
1852 SvREFCNT_dec (coro);
1853 2426
1854 /* better take a full copy of the arguments */ 2427 /* better take a full copy of the arguments */
1855 while (items--) 2428 while (items--)
1856 av_store (av, items, newSVsv (ST (items))); 2429 av_store (av, items, newSVsv (ST (items)));
2430
2431 api_ready (aTHX_ coro);
2432 SvREFCNT_dec (coro);
1857 } 2433 }
1858 2434
1859 XSRETURN_EMPTY; 2435 XSRETURN_EMPTY;
1860} 2436}
1861 2437
1862static int 2438static int
1863slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2439slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1864{ 2440{
1865 SV *data = (SV *)frame->data; 2441 SV *data = (SV *)frame->data;
1866 2442
1867 if (CORO_THROW) 2443 if (CORO_THROW)
1868 return 0; 2444 return 0;
1869 2445
1870 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2446 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1871 return 1; 2447 return 1;
… …
1878 2454
1879 EXTEND (SP, AvFILLp (av) + 1); 2455 EXTEND (SP, AvFILLp (av) + 1);
1880 for (i = 0; i <= AvFILLp (av); ++i) 2456 for (i = 0; i <= AvFILLp (av); ++i)
1881 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2457 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1882 2458
1883 /* we have stolen the elements, so ste length to zero and free */ 2459 /* we have stolen the elements, so set length to zero and free */
1884 AvFILLp (av) = -1; 2460 AvFILLp (av) = -1;
1885 av_undef (av); 2461 av_undef (av);
1886 2462
1887 PUTBACK; 2463 PUTBACK;
1888 } 2464 }
… …
1907 cb = sv_2mortal (coro->rouse_cb); 2483 cb = sv_2mortal (coro->rouse_cb);
1908 coro->rouse_cb = 0; 2484 coro->rouse_cb = 0;
1909 } 2485 }
1910 2486
1911 if (!SvROK (cb) 2487 if (!SvROK (cb)
1912 || SvTYPE (SvRV (cb)) != SVt_PVCV 2488 || SvTYPE (SvRV (cb)) != SVt_PVCV
1913 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2489 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1914 croak ("Coro::rouse_wait called with illegal callback argument,"); 2490 croak ("Coro::rouse_wait called with illegal callback argument,");
1915 2491
1916 { 2492 {
1917 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2493 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1918 SV *data = (SV *)GENSUB_ARG; 2494 SV *data = (SV *)S_GENSUB_ARG;
1919 2495
1920 frame->data = (void *)data; 2496 frame->data = (void *)data;
1921 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2497 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1922 frame->check = slf_check_rouse_wait; 2498 frame->check = slf_check_rouse_wait;
1923 } 2499 }
… …
1927coro_new_rouse_cb (pTHX) 2503coro_new_rouse_cb (pTHX)
1928{ 2504{
1929 HV *hv = (HV *)SvRV (coro_current); 2505 HV *hv = (HV *)SvRV (coro_current);
1930 struct coro *coro = SvSTATE_hv (hv); 2506 struct coro *coro = SvSTATE_hv (hv);
1931 SV *data = newRV_inc ((SV *)hv); 2507 SV *data = newRV_inc ((SV *)hv);
1932 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2508 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1933 2509
1934 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2510 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1935 SvREFCNT_dec (data); /* magicext increases the refcount */ 2511 SvREFCNT_dec (data); /* magicext increases the refcount */
1936 2512
1937 SvREFCNT_dec (coro->rouse_cb); 2513 SvREFCNT_dec (coro->rouse_cb);
… …
1995 frame->prepare = prepare_schedule; 2571 frame->prepare = prepare_schedule;
1996 frame->check = slf_check_nop; 2572 frame->check = slf_check_nop;
1997} 2573}
1998 2574
1999static void 2575static void
2576slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2577{
2578 struct coro *next = (struct coro *)slf_frame.data;
2579
2580 SvREFCNT_inc_NN (next->hv);
2581 prepare_schedule_to (aTHX_ ta, next);
2582}
2583
2584static void
2585slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2586{
2587 if (!items)
2588 croak ("Coro::schedule_to expects a coroutine argument, caught");
2589
2590 frame->data = (void *)SvSTATE (arg [0]);
2591 frame->prepare = slf_prepare_schedule_to;
2592 frame->check = slf_check_nop;
2593}
2594
2595static void
2596slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2597{
2598 api_ready (aTHX_ SvRV (coro_current));
2599
2600 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2601}
2602
2603static void
2000slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2604slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2001{ 2605{
2002 frame->prepare = prepare_cede; 2606 frame->prepare = prepare_cede;
2003 frame->check = slf_check_nop; 2607 frame->check = slf_check_nop;
2004} 2608}
… …
2006static void 2610static void
2007slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2611slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2008{ 2612{
2009 frame->prepare = prepare_cede_notself; 2613 frame->prepare = prepare_cede_notself;
2010 frame->check = slf_check_nop; 2614 frame->check = slf_check_nop;
2615}
2616
2617/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2618static void
2619slf_destroy (pTHX_ struct coro *coro)
2620{
2621 struct CoroSLF frame = coro->slf_frame;
2622
2623 /*
2624 * The on_destroy below most likely is from an SLF call.
2625 * Since by definition the SLF call will not finish when we destroy
2626 * the coro, we will have to force-finish it here, otherwise
2627 * cleanup functions cannot call SLF functions.
2628 */
2629 coro->slf_frame.prepare = 0;
2630
2631 /* this callback is reserved for slf functions needing to do cleanup */
2632 if (frame.destroy && frame.prepare && !PL_dirty)
2633 frame.destroy (aTHX_ &frame);
2011} 2634}
2012 2635
2013/* 2636/*
2014 * these not obviously related functions are all rolled into one 2637 * these not obviously related functions are all rolled into one
2015 * function to increase chances that they all will call transfer with the same 2638 * function to increase chances that they all will call transfer with the same
… …
2022 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2645 I32 checkmark; /* mark SP to see how many elements check has pushed */
2023 2646
2024 /* set up the slf frame, unless it has already been set-up */ 2647 /* set up the slf frame, unless it has already been set-up */
2025 /* the latter happens when a new coro has been started */ 2648 /* the latter happens when a new coro has been started */
2026 /* or when a new cctx was attached to an existing coroutine */ 2649 /* or when a new cctx was attached to an existing coroutine */
2027 if (expect_true (!slf_frame.prepare)) 2650 if (ecb_expect_true (!slf_frame.prepare))
2028 { 2651 {
2029 /* first iteration */ 2652 /* first iteration */
2030 dSP; 2653 dSP;
2031 SV **arg = PL_stack_base + TOPMARK + 1; 2654 SV **arg = PL_stack_base + TOPMARK + 1;
2032 int items = SP - arg; /* args without function object */ 2655 int items = SP - arg; /* args without function object */
… …
2073 while (slf_frame.check (aTHX_ &slf_frame)); 2696 while (slf_frame.check (aTHX_ &slf_frame));
2074 2697
2075 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2698 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2076 2699
2077 /* exception handling */ 2700 /* exception handling */
2078 if (expect_false (CORO_THROW)) 2701 if (ecb_expect_false (CORO_THROW))
2079 { 2702 {
2080 SV *exception = sv_2mortal (CORO_THROW); 2703 SV *exception = sv_2mortal (CORO_THROW);
2081 2704
2082 CORO_THROW = 0; 2705 CORO_THROW = 0;
2083 sv_setsv (ERRSV, exception); 2706 sv_setsv (ERRSV, exception);
2084 croak (0); 2707 croak (0);
2085 } 2708 }
2086 2709
2087 /* return value handling - mostly like entersub */ 2710 /* return value handling - mostly like entersub */
2088 /* make sure we put something on the stack in scalar context */ 2711 /* make sure we put something on the stack in scalar context */
2089 if (GIMME_V == G_SCALAR) 2712 if (GIMME_V == G_SCALAR
2713 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2090 { 2714 {
2091 dSP; 2715 dSP;
2092 SV **bot = PL_stack_base + checkmark; 2716 SV **bot = PL_stack_base + checkmark;
2093 2717
2094 if (sp == bot) /* too few, push undef */ 2718 if (sp == bot) /* too few, push undef */
2095 bot [1] = &PL_sv_undef; 2719 bot [1] = &PL_sv_undef;
2096 else if (sp != bot + 1) /* too many, take last one */ 2720 else /* too many, take last one */
2097 bot [1] = *sp; 2721 bot [1] = *sp;
2098 2722
2099 SP = bot + 1; 2723 SP = bot + 1;
2100 2724
2101 PUTBACK; 2725 PUTBACK;
… …
2134 if (PL_op->op_flags & OPf_STACKED) 2758 if (PL_op->op_flags & OPf_STACKED)
2135 { 2759 {
2136 if (items > slf_arga) 2760 if (items > slf_arga)
2137 { 2761 {
2138 slf_arga = items; 2762 slf_arga = items;
2139 free (slf_argv); 2763 Safefree (slf_argv);
2140 slf_argv = malloc (slf_arga * sizeof (SV *)); 2764 New (0, slf_argv, slf_arga, SV *);
2141 } 2765 }
2142 2766
2143 slf_argc = items; 2767 slf_argc = items;
2144 2768
2145 for (i = 0; i < items; ++i) 2769 for (i = 0; i < items; ++i)
… …
2147 } 2771 }
2148 else 2772 else
2149 slf_argc = 0; 2773 slf_argc = 0;
2150 2774
2151 PL_op->op_ppaddr = pp_slf; 2775 PL_op->op_ppaddr = pp_slf;
2152 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2776 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2153 2777
2154 PL_op = (OP *)&slf_restore; 2778 PL_op = (OP *)&slf_restore;
2779}
2780
2781/*****************************************************************************/
2782/* dynamic wind */
2783
2784static void
2785on_enterleave_call (pTHX_ SV *cb)
2786{
2787 dSP;
2788
2789 PUSHSTACK;
2790
2791 PUSHMARK (SP);
2792 PUTBACK;
2793 call_sv (cb, G_VOID | G_DISCARD);
2794 SPAGAIN;
2795
2796 POPSTACK;
2797}
2798
2799static SV *
2800coro_avp_pop_and_free (pTHX_ AV **avp)
2801{
2802 AV *av = *avp;
2803 SV *res = av_pop (av);
2804
2805 if (AvFILLp (av) < 0)
2806 {
2807 *avp = 0;
2808 SvREFCNT_dec (av);
2809 }
2810
2811 return res;
2812}
2813
2814static void
2815coro_pop_on_enter (pTHX_ void *coro)
2816{
2817 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2818 SvREFCNT_dec (cb);
2819}
2820
2821static void
2822coro_pop_on_leave (pTHX_ void *coro)
2823{
2824 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2825 on_enterleave_call (aTHX_ sv_2mortal (cb));
2155} 2826}
2156 2827
2157/*****************************************************************************/ 2828/*****************************************************************************/
2158/* PerlIO::cede */ 2829/* PerlIO::cede */
2159 2830
… …
2161{ 2832{
2162 PerlIOBuf base; 2833 PerlIOBuf base;
2163 NV next, every; 2834 NV next, every;
2164} PerlIOCede; 2835} PerlIOCede;
2165 2836
2166static IV 2837static IV ecb_cold
2167PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2838PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2168{ 2839{
2169 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2840 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2170 2841
2171 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2842 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2172 self->next = nvtime () + self->every; 2843 self->next = nvtime () + self->every;
2173 2844
2174 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2845 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2175} 2846}
2176 2847
2177static SV * 2848static SV * ecb_cold
2178PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2849PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2179{ 2850{
2180 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2851 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2181 2852
2182 return newSVnv (self->every); 2853 return newSVnv (self->every);
… …
2233/* Coro::Semaphore & Coro::Signal */ 2904/* Coro::Semaphore & Coro::Signal */
2234 2905
2235static SV * 2906static SV *
2236coro_waitarray_new (pTHX_ int count) 2907coro_waitarray_new (pTHX_ int count)
2237{ 2908{
2238 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2909 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2239 AV *av = newAV (); 2910 AV *av = newAV ();
2240 SV **ary; 2911 SV **ary;
2241 2912
2242 /* unfortunately, building manually saves memory */ 2913 /* unfortunately, building manually saves memory */
2243 Newx (ary, 2, SV *); 2914 Newx (ary, 2, SV *);
2244 AvALLOC (av) = ary; 2915 AvALLOC (av) = ary;
2916#if PERL_VERSION_ATLEAST (5,10,0)
2245 /*AvARRAY (av) = ary;*/ 2917 AvARRAY (av) = ary;
2918#else
2246 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2919 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2920 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2921 SvPVX ((SV *)av) = (char *)ary;
2922#endif
2247 AvMAX (av) = 1; 2923 AvMAX (av) = 1;
2248 AvFILLp (av) = 0; 2924 AvFILLp (av) = 0;
2249 ary [0] = newSViv (count); 2925 ary [0] = newSViv (count);
2250 2926
2251 return newRV_noinc ((SV *)av); 2927 return newRV_noinc ((SV *)av);
… …
2289 SvREFCNT_dec (cb); 2965 SvREFCNT_dec (cb);
2290 } 2966 }
2291} 2967}
2292 2968
2293static void 2969static void
2294coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2970coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2295{ 2971{
2296 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2972 /* call $sem->adjust (0) to possibly wake up some other waiters */
2297 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2973 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2298} 2974}
2299 2975
2300static int 2976static int
2301slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2977slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2302{ 2978{
2303 AV *av = (AV *)frame->data; 2979 AV *av = (AV *)frame->data;
2304 SV *count_sv = AvARRAY (av)[0]; 2980 SV *count_sv = AvARRAY (av)[0];
2981 SV *coro_hv = SvRV (coro_current);
2982
2983 frame->destroy = 0;
2305 2984
2306 /* if we are about to throw, don't actually acquire the lock, just throw */ 2985 /* if we are about to throw, don't actually acquire the lock, just throw */
2307 if (CORO_THROW) 2986 if (ecb_expect_false (CORO_THROW))
2987 {
2988 /* we still might be responsible for the semaphore, so wake up others */
2989 coro_semaphore_adjust (aTHX_ av, 0);
2990
2308 return 0; 2991 return 0;
2992 }
2309 else if (SvIVX (count_sv) > 0) 2993 else if (SvIVX (count_sv) > 0)
2310 { 2994 {
2311 SvSTATE_current->on_destroy = 0;
2312
2313 if (acquire) 2995 if (acquire)
2314 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2996 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2315 else 2997 else
2316 coro_semaphore_adjust (aTHX_ av, 0); 2998 coro_semaphore_adjust (aTHX_ av, 0);
2317 2999
… …
2321 { 3003 {
2322 int i; 3004 int i;
2323 /* if we were woken up but can't down, we look through the whole */ 3005 /* if we were woken up but can't down, we look through the whole */
2324 /* waiters list and only add us if we aren't in there already */ 3006 /* waiters list and only add us if we aren't in there already */
2325 /* this avoids some degenerate memory usage cases */ 3007 /* this avoids some degenerate memory usage cases */
2326 3008 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2327 for (i = 1; i <= AvFILLp (av); ++i)
2328 if (AvARRAY (av)[i] == SvRV (coro_current)) 3009 if (AvARRAY (av)[i] == coro_hv)
2329 return 1; 3010 return 1;
2330 3011
2331 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3012 av_push (av, SvREFCNT_inc (coro_hv));
2332 return 1; 3013 return 1;
2333 } 3014 }
2334} 3015}
2335 3016
2336static int 3017static int
… …
2359 { 3040 {
2360 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3041 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2361 3042
2362 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3043 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2363 frame->prepare = prepare_schedule; 3044 frame->prepare = prepare_schedule;
2364
2365 /* to avoid race conditions when a woken-up coro gets terminated */ 3045 /* to avoid race conditions when a woken-up coro gets terminated */
2366 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3046 /* we arrange for a temporary on_destroy that calls adjust (0) */
2367 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3047 frame->destroy = coro_semaphore_destroy;
2368 } 3048 }
2369} 3049}
2370 3050
2371static void 3051static void
2372slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3052slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2380{ 3060{
2381 if (items >= 2) 3061 if (items >= 2)
2382 { 3062 {
2383 /* callback form */ 3063 /* callback form */
2384 AV *av = (AV *)SvRV (arg [0]); 3064 AV *av = (AV *)SvRV (arg [0]);
2385 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3065 SV *cb_cv = s_get_cv_croak (arg [1]);
2386 3066
2387 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3067 av_push (av, SvREFCNT_inc_NN (cb_cv));
2388 3068
2389 if (SvIVX (AvARRAY (av)[0]) > 0) 3069 if (SvIVX (AvARRAY (av)[0]) > 0)
2390 coro_semaphore_adjust (aTHX_ av, 0); 3070 coro_semaphore_adjust (aTHX_ av, 0);
2391 3071
2392 frame->prepare = prepare_nop; 3072 frame->prepare = prepare_nop;
… …
2416 AvARRAY (av)[0] = AvARRAY (av)[1]; 3096 AvARRAY (av)[0] = AvARRAY (av)[1];
2417 AvARRAY (av)[1] = cb; 3097 AvARRAY (av)[1] = cb;
2418 3098
2419 cb = av_shift (av); 3099 cb = av_shift (av);
2420 3100
3101 if (SvTYPE (cb) == SVt_PVCV)
3102 {
3103 dSP;
3104 PUSHMARK (SP);
3105 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3106 PUTBACK;
3107 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3108 }
3109 else
3110 {
2421 api_ready (aTHX_ cb); 3111 api_ready (aTHX_ cb);
2422 sv_setiv (cb, 0); /* signal waiter */ 3112 sv_setiv (cb, 0); /* signal waiter */
3113 }
3114
2423 SvREFCNT_dec (cb); 3115 SvREFCNT_dec (cb);
2424 3116
2425 --count; 3117 --count;
2426 } 3118 }
2427} 3119}
… …
2436static void 3128static void
2437slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3129slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2438{ 3130{
2439 AV *av = (AV *)SvRV (arg [0]); 3131 AV *av = (AV *)SvRV (arg [0]);
2440 3132
3133 if (items >= 2)
3134 {
3135 SV *cb_cv = s_get_cv_croak (arg [1]);
3136 av_push (av, SvREFCNT_inc_NN (cb_cv));
3137
2441 if (SvIVX (AvARRAY (av)[0])) 3138 if (SvIVX (AvARRAY (av)[0]))
3139 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3140
3141 frame->prepare = prepare_nop;
3142 frame->check = slf_check_nop;
3143 }
3144 else if (SvIVX (AvARRAY (av)[0]))
2442 { 3145 {
2443 SvIVX (AvARRAY (av)[0]) = 0; 3146 SvIVX (AvARRAY (av)[0]) = 0;
2444 frame->prepare = prepare_nop; 3147 frame->prepare = prepare_nop;
2445 frame->check = slf_check_nop; 3148 frame->check = slf_check_nop;
2446 } 3149 }
2447 else 3150 else
2448 { 3151 {
2449 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3152 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2450 3153
2451 av_push (av, waiter); 3154 av_push (av, waiter);
2452 3155
2453 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3156 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2454 frame->prepare = prepare_schedule; 3157 frame->prepare = prepare_schedule;
… …
2472 3175
2473static void 3176static void
2474coro_aio_callback (pTHX_ CV *cv) 3177coro_aio_callback (pTHX_ CV *cv)
2475{ 3178{
2476 dXSARGS; 3179 dXSARGS;
2477 AV *state = (AV *)GENSUB_ARG; 3180 AV *state = (AV *)S_GENSUB_ARG;
2478 SV *coro = av_pop (state); 3181 SV *coro = av_pop (state);
2479 SV *data_sv = newSV (sizeof (struct io_state)); 3182 SV *data_sv = newSV (sizeof (struct io_state));
2480 3183
2481 av_extend (state, items - 1); 3184 av_extend (state, items - 1);
2482 3185
… …
2518 /* it quickly returns */ 3221 /* it quickly returns */
2519 if (CORO_THROW) 3222 if (CORO_THROW)
2520 return 0; 3223 return 0;
2521 3224
2522 /* one element that is an RV? repeat! */ 3225 /* one element that is an RV? repeat! */
2523 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3226 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2524 return 1; 3227 return 1;
2525 3228
2526 /* restore status */ 3229 /* restore status */
2527 { 3230 {
2528 SV *data_sv = av_pop (state); 3231 SV *data_sv = av_pop (state);
… …
2567 dSP; 3270 dSP;
2568 3271
2569 static SV *prio_cv; 3272 static SV *prio_cv;
2570 static SV *prio_sv; 3273 static SV *prio_sv;
2571 3274
2572 if (expect_false (!prio_cv)) 3275 if (ecb_expect_false (!prio_cv))
2573 { 3276 {
2574 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3277 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2575 prio_sv = newSViv (0); 3278 prio_sv = newSViv (0);
2576 } 3279 }
2577 3280
… …
2596 3299
2597 for (i = 0; i < items; ++i) 3300 for (i = 0; i < items; ++i)
2598 PUSHs (arg [i]); 3301 PUSHs (arg [i]);
2599 3302
2600 /* now push the callback closure */ 3303 /* now push the callback closure */
2601 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3304 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2602 3305
2603 /* now call the AIO function - we assume our request is uncancelable */ 3306 /* now call the AIO function - we assume our request is uncancelable */
2604 PUTBACK; 3307 PUTBACK;
2605 call_sv ((SV *)req, G_VOID | G_DISCARD); 3308 call_sv ((SV *)req, G_VOID | G_DISCARD);
2606 } 3309 }
2607 3310
2608 /* now that the requets is going, we loop toll we have a result */ 3311 /* now that the request is going, we loop till we have a result */
2609 frame->data = (void *)state; 3312 frame->data = (void *)state;
2610 frame->prepare = prepare_schedule; 3313 frame->prepare = prepare_schedule;
2611 frame->check = slf_check_aio_req; 3314 frame->check = slf_check_aio_req;
2612} 3315}
2613 3316
… …
2621 XSRETURN_EMPTY; 3324 XSRETURN_EMPTY;
2622} 3325}
2623 3326
2624/*****************************************************************************/ 3327/*****************************************************************************/
2625 3328
3329#if CORO_CLONE
3330# include "clone.c"
3331#endif
3332
3333/*****************************************************************************/
3334
3335static SV *
3336coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3337{
3338 SV *coro_sv;
3339 struct coro *coro;
3340 MAGIC *mg;
3341 HV *hv;
3342 SV *cb;
3343 int i;
3344
3345 if (argc > 0)
3346 {
3347 cb = s_get_cv_croak (argv [0]);
3348
3349 if (!is_coro)
3350 {
3351 if (CvISXSUB (cb))
3352 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3353
3354 if (!CvROOT (cb))
3355 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3356 }
3357 }
3358
3359 Newz (0, coro, 1, struct coro);
3360 coro->args = newAV ();
3361 coro->flags = CF_NEW;
3362
3363 if (coro_first) coro_first->prev = coro;
3364 coro->next = coro_first;
3365 coro_first = coro;
3366
3367 coro->hv = hv = newHV ();
3368 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3369 mg->mg_flags |= MGf_DUP;
3370 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3371
3372 if (argc > 0)
3373 {
3374 av_extend (coro->args, argc + is_coro - 1);
3375
3376 if (is_coro)
3377 {
3378 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3379 cb = (SV *)cv_coro_run;
3380 }
3381
3382 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3383
3384 for (i = 1; i < argc; i++)
3385 av_push (coro->args, newSVsv (argv [i]));
3386 }
3387
3388 return coro_sv;
3389}
3390
3391#ifndef __cplusplus
3392ecb_cold XS(boot_Coro__State);
3393#endif
3394
3395#if CORO_JIT
3396
3397static void ecb_noinline ecb_cold
3398pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3399{
3400 dSP;
3401 AV *av = newAV ();
3402
3403 av_store (av, 3, newSVuv (d));
3404 av_store (av, 2, newSVuv (c));
3405 av_store (av, 1, newSVuv (b));
3406 av_store (av, 0, newSVuv (a));
3407
3408 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3409
3410 PUTBACK;
3411}
3412
3413static void ecb_noinline ecb_cold
3414jit_init (pTHX)
3415{
3416 dSP;
3417 SV *load, *save;
3418 char *map_base;
3419 char *load_ptr, *save_ptr;
3420 STRLEN load_len, save_len, map_len;
3421 int count;
3422
3423 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3424
3425 PUSHMARK (SP);
3426 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3427 #include "state.h"
3428 count = call_pv ("Coro::State::_jit", G_ARRAY);
3429 SPAGAIN;
3430
3431 save = POPs; save_ptr = SvPVbyte (save, save_len);
3432 load = POPs; load_ptr = SvPVbyte (load, load_len);
3433
3434 map_len = load_len + save_len + 16;
3435
3436 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3437
3438 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3439
3440 load_perl_slots = (load_save_perl_slots_type)map_base;
3441 memcpy (map_base, load_ptr, load_len);
3442
3443 map_base += (load_len + 15) & ~15;
3444
3445 save_perl_slots = (load_save_perl_slots_type)map_base;
3446 memcpy (map_base, save_ptr, save_len);
3447
3448 /* we are good citizens and try to make the page read-only, so the evil evil */
3449 /* hackers might have it a bit more difficult */
3450 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3451
3452 PUTBACK;
3453 eval_pv ("undef &Coro::State::_jit", 1);
3454}
3455
3456#endif
3457
2626MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3458MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2627 3459
2628PROTOTYPES: DISABLE 3460PROTOTYPES: DISABLE
2629 3461
2630BOOT: 3462BOOT:
2631{ 3463{
3464#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3465#include "state.h"
2632#ifdef USE_ITHREADS 3466#ifdef USE_ITHREADS
2633# if CORO_PTHREAD 3467# if CORO_PTHREAD
2634 coro_thx = PERL_GET_CONTEXT; 3468 coro_thx = PERL_GET_CONTEXT;
2635# endif 3469# endif
2636#endif 3470#endif
2637 BOOT_PAGESIZE; 3471 /* perl defines these to check for existance first, but why it doesn't */
3472 /* just create them one at init time is not clear to me, except for */
3473 /* programs trying to delete them, but... */
3474 /* anyway, we declare this as invalid and make sure they are initialised here */
3475 DEFSV;
3476 ERRSV;
3477
3478 cctx_current = cctx_new_empty ();
2638 3479
2639 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3480 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2640 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3481 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2641 3482
2642 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3483 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
… …
2662 3503
2663 { 3504 {
2664 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3505 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2665 3506
2666 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3507 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2667 hv_store_ent (PL_custom_op_names, slf, 3508 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2668 newSVpv ("coro_slf", 0), 0);
2669 3509
2670 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3510 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2671 hv_store_ent (PL_custom_op_descs, slf, 3511 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2672 newSVpv ("coro schedule like function", 0), 0);
2673 } 3512 }
2674 3513
2675 coroapi.ver = CORO_API_VERSION; 3514 coroapi.ver = CORO_API_VERSION;
2676 coroapi.rev = CORO_API_REVISION; 3515 coroapi.rev = CORO_API_REVISION;
2677 3516
… …
2682 coroapi.prepare_nop = prepare_nop; 3521 coroapi.prepare_nop = prepare_nop;
2683 coroapi.prepare_schedule = prepare_schedule; 3522 coroapi.prepare_schedule = prepare_schedule;
2684 coroapi.prepare_cede = prepare_cede; 3523 coroapi.prepare_cede = prepare_cede;
2685 coroapi.prepare_cede_notself = prepare_cede_notself; 3524 coroapi.prepare_cede_notself = prepare_cede_notself;
2686 3525
2687 { 3526 time_init (aTHX);
2688 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2689 3527
2690 if (!svp) croak ("Time::HiRes is required");
2691 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2692
2693 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2694 }
2695
2696 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3528 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3529#if CORO_JIT
3530 PUTBACK;
3531 jit_init (aTHX);
3532 SPAGAIN;
3533#endif
2697} 3534}
2698 3535
2699SV * 3536SV *
2700new (char *klass, ...) 3537new (SV *klass, ...)
2701 ALIAS: 3538 ALIAS:
2702 Coro::new = 1 3539 Coro::new = 1
2703 CODE: 3540 CODE:
2704{ 3541 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2705 struct coro *coro; 3542 OUTPUT:
2706 MAGIC *mg;
2707 HV *hv;
2708 CV *cb;
2709 int i;
2710
2711 if (items > 1)
2712 {
2713 cb = coro_sv_2cv (aTHX_ ST (1));
2714
2715 if (!ix)
2716 {
2717 if (CvISXSUB (cb))
2718 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2719
2720 if (!CvROOT (cb))
2721 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2722 }
2723 }
2724
2725 Newz (0, coro, 1, struct coro);
2726 coro->args = newAV ();
2727 coro->flags = CF_NEW;
2728
2729 if (coro_first) coro_first->prev = coro;
2730 coro->next = coro_first;
2731 coro_first = coro;
2732
2733 coro->hv = hv = newHV ();
2734 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2735 mg->mg_flags |= MGf_DUP;
2736 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2737
2738 if (items > 1)
2739 {
2740 av_extend (coro->args, items - 1 + ix - 1);
2741
2742 if (ix)
2743 {
2744 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2745 cb = cv_coro_run;
2746 }
2747
2748 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2749
2750 for (i = 2; i < items; i++)
2751 av_push (coro->args, newSVsv (ST (i)));
2752 }
2753}
2754 OUTPUT:
2755 RETVAL 3543 RETVAL
2756 3544
2757void 3545void
2758transfer (...) 3546transfer (...)
2759 PROTOTYPE: $$ 3547 PROTOTYPE: $$
2760 CODE: 3548 CODE:
2761 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3549 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2762 3550
2763bool 3551SV *
2764_destroy (SV *coro_sv) 3552clone (Coro::State coro)
2765 CODE: 3553 CODE:
2766 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 3554{
3555#if CORO_CLONE
3556 struct coro *ncoro = coro_clone (aTHX_ coro);
3557 MAGIC *mg;
3558 /* TODO: too much duplication */
3559 ncoro->hv = newHV ();
3560 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3561 mg->mg_flags |= MGf_DUP;
3562 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3563#else
3564 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3565#endif
3566}
2767 OUTPUT: 3567 OUTPUT:
2768 RETVAL 3568 RETVAL
2769
2770void
2771_exit (int code)
2772 PROTOTYPE: $
2773 CODE:
2774 _exit (code);
2775 3569
2776int 3570int
2777cctx_stacksize (int new_stacksize = 0) 3571cctx_stacksize (int new_stacksize = 0)
2778 PROTOTYPE: ;$ 3572 PROTOTYPE: ;$
2779 CODE: 3573 CODE:
… …
2815void 3609void
2816list () 3610list ()
2817 PROTOTYPE: 3611 PROTOTYPE:
2818 PPCODE: 3612 PPCODE:
2819{ 3613{
2820 struct coro *coro; 3614 struct coro *coro;
2821 for (coro = coro_first; coro; coro = coro->next) 3615 for (coro = coro_first; coro; coro = coro->next)
2822 if (coro->hv) 3616 if (coro->hv)
2823 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3617 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2824} 3618}
2825 3619
… …
2829 eval = 1 3623 eval = 1
2830 CODE: 3624 CODE:
2831{ 3625{
2832 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3626 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2833 { 3627 {
2834 struct coro temp; 3628 struct coro *current = SvSTATE_current;
3629 struct CoroSLF slf_save;
2835 3630
2836 if (!(coro->flags & CF_RUNNING)) 3631 if (current != coro)
2837 { 3632 {
2838 PUTBACK; 3633 PUTBACK;
2839 save_perl (aTHX_ &temp); 3634 save_perl (aTHX_ current);
2840 load_perl (aTHX_ coro); 3635 load_perl (aTHX_ coro);
3636 /* the coro is most likely in an active SLF call.
3637 * while not strictly required (the code we execute is
3638 * not allowed to call any SLF functions), it's cleaner
3639 * to reinitialise the slf_frame and restore it later.
3640 * This might one day allow us to actually do SLF calls
3641 * from code executed here.
3642 */
3643 slf_save = slf_frame;
3644 slf_frame.prepare = 0;
3645 SPAGAIN;
2841 } 3646 }
2842 3647
2843 {
2844 dSP;
2845 ENTER;
2846 SAVETMPS;
2847 PUTBACK;
2848 PUSHSTACK; 3648 PUSHSTACK;
3649
2849 PUSHMARK (SP); 3650 PUSHMARK (SP);
3651 PUTBACK;
2850 3652
2851 if (ix) 3653 if (ix)
2852 eval_sv (coderef, 0); 3654 eval_sv (coderef, 0);
2853 else 3655 else
2854 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3656 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2855 3657
2856 POPSTACK; 3658 POPSTACK;
2857 SPAGAIN; 3659 SPAGAIN;
2858 FREETMPS;
2859 LEAVE;
2860 PUTBACK;
2861 }
2862 3660
2863 if (!(coro->flags & CF_RUNNING)) 3661 if (current != coro)
2864 { 3662 {
3663 PUTBACK;
3664 slf_frame = slf_save;
2865 save_perl (aTHX_ coro); 3665 save_perl (aTHX_ coro);
2866 load_perl (aTHX_ &temp); 3666 load_perl (aTHX_ current);
2867 SPAGAIN; 3667 SPAGAIN;
2868 } 3668 }
2869 } 3669 }
2870} 3670}
2871 3671
… …
2874 PROTOTYPE: $ 3674 PROTOTYPE: $
2875 ALIAS: 3675 ALIAS:
2876 is_ready = CF_READY 3676 is_ready = CF_READY
2877 is_running = CF_RUNNING 3677 is_running = CF_RUNNING
2878 is_new = CF_NEW 3678 is_new = CF_NEW
2879 is_destroyed = CF_DESTROYED 3679 is_destroyed = CF_ZOMBIE
3680 is_zombie = CF_ZOMBIE
3681 is_suspended = CF_SUSPENDED
2880 CODE: 3682 CODE:
2881 RETVAL = boolSV (coro->flags & ix); 3683 RETVAL = boolSV (coro->flags & ix);
2882 OUTPUT: 3684 OUTPUT:
2883 RETVAL 3685 RETVAL
2884 3686
2885void 3687void
2886throw (Coro::State self, SV *throw = &PL_sv_undef) 3688throw (SV *self, SV *exception = &PL_sv_undef)
2887 PROTOTYPE: $;$ 3689 PROTOTYPE: $;$
2888 CODE: 3690 CODE:
2889{ 3691{
3692 struct coro *coro = SvSTATE (self);
2890 struct coro *current = SvSTATE_current; 3693 struct coro *current = SvSTATE_current;
2891 SV **throwp = self == current ? &CORO_THROW : &self->except; 3694 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2892 SvREFCNT_dec (*throwp); 3695 SvREFCNT_dec (*exceptionp);
2893 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3696 SvGETMAGIC (exception);
3697 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3698
3699 api_ready (aTHX_ self);
2894} 3700}
2895 3701
2896void 3702void
2897api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3703api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2898 PROTOTYPE: $;$ 3704 PROTOTYPE: $;$
… …
2900 3706
2901SV * 3707SV *
2902has_cctx (Coro::State coro) 3708has_cctx (Coro::State coro)
2903 PROTOTYPE: $ 3709 PROTOTYPE: $
2904 CODE: 3710 CODE:
2905 RETVAL = boolSV (!!coro->cctx); 3711 /* maybe manage the running flag differently */
3712 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2906 OUTPUT: 3713 OUTPUT:
2907 RETVAL 3714 RETVAL
2908 3715
2909int 3716int
2910is_traced (Coro::State coro) 3717is_traced (Coro::State coro)
… …
2930 3737
2931void 3738void
2932force_cctx () 3739force_cctx ()
2933 PROTOTYPE: 3740 PROTOTYPE:
2934 CODE: 3741 CODE:
2935 SvSTATE_current->cctx->idle_sp = 0; 3742 cctx_current->idle_sp = 0;
2936 3743
2937void 3744void
2938swap_defsv (Coro::State self) 3745swap_defsv (Coro::State self)
2939 PROTOTYPE: $ 3746 PROTOTYPE: $
2940 ALIAS: 3747 ALIAS:
… …
2948 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3755 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2949 3756
2950 SV *tmp = *src; *src = *dst; *dst = tmp; 3757 SV *tmp = *src; *src = *dst; *dst = tmp;
2951 } 3758 }
2952 3759
3760void
3761cancel (Coro::State self)
3762 CODE:
3763 coro_state_destroy (aTHX_ self);
3764
3765SV *
3766enable_times (int enabled = enable_times)
3767 CODE:
3768{
3769 RETVAL = boolSV (enable_times);
3770
3771 if (enabled != enable_times)
3772 {
3773 enable_times = enabled;
3774
3775 coro_times_update ();
3776 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3777 }
3778}
3779 OUTPUT:
3780 RETVAL
3781
3782void
3783times (Coro::State self)
3784 PPCODE:
3785{
3786 struct coro *current = SvSTATE (coro_current);
3787
3788 if (ecb_expect_false (current == self))
3789 {
3790 coro_times_update ();
3791 coro_times_add (SvSTATE (coro_current));
3792 }
3793
3794 EXTEND (SP, 2);
3795 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3796 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3797
3798 if (ecb_expect_false (current == self))
3799 coro_times_sub (SvSTATE (coro_current));
3800}
3801
3802void
3803swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3804 CODE:
3805{
3806 struct coro *current = SvSTATE_current;
3807
3808 if (current == coro)
3809 SWAP_SVS (current);
3810
3811 if (!coro->swap_sv)
3812 coro->swap_sv = newAV ();
3813
3814 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3815 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3816
3817 if (current == coro)
3818 SWAP_SVS (current);
3819}
3820
2953 3821
2954MODULE = Coro::State PACKAGE = Coro 3822MODULE = Coro::State PACKAGE = Coro
2955 3823
2956BOOT: 3824BOOT:
2957{ 3825{
2958 int i;
2959
2960 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2961 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3826 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2962 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3827 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2963 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3828 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2964 cv_coro_terminate = get_cv ( "Coro::terminate", GV_ADD);
2965 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); 3829 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2966 SvREADONLY_on (coro_current); 3830 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3831 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3832 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3833 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2967 3834
2968 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3835 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
2969 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3836 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
2970 cv_pool_handler = get_cv ("Coro::_pool_handler", 0); SvREADONLY_on (cv_pool_handler); 3837 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
2971 cv_coro_new = get_cv ("Coro::new", 0); SvREADONLY_on (cv_coro_new); 3838 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
2972 3839
2973 coro_stash = gv_stashpv ("Coro", TRUE); 3840 coro_stash = gv_stashpv ("Coro", TRUE);
2974 3841
2975 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3842 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2976 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3843 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2977 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3844 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2978 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3845 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2979 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3846 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2980 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3847 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2981
2982 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2983 coro_ready[i] = newAV ();
2984 3848
2985 { 3849 {
2986 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3850 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2987 3851
2988 coroapi.schedule = api_schedule; 3852 coroapi.schedule = api_schedule;
3853 coroapi.schedule_to = api_schedule_to;
2989 coroapi.cede = api_cede; 3854 coroapi.cede = api_cede;
2990 coroapi.cede_notself = api_cede_notself; 3855 coroapi.cede_notself = api_cede_notself;
2991 coroapi.ready = api_ready; 3856 coroapi.ready = api_ready;
2992 coroapi.is_ready = api_is_ready; 3857 coroapi.is_ready = api_is_ready;
2993 coroapi.nready = coro_nready; 3858 coroapi.nready = coro_nready;
… …
2997 sv_setiv (sv, (IV)&coroapi); 3862 sv_setiv (sv, (IV)&coroapi);
2998 SvREADONLY_on (sv); 3863 SvREADONLY_on (sv);
2999 } 3864 }
3000} 3865}
3001 3866
3867SV *
3868async (...)
3869 PROTOTYPE: &@
3870 CODE:
3871 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3872 api_ready (aTHX_ RETVAL);
3873 OUTPUT:
3874 RETVAL
3875
3876void
3877_destroy (Coro::State coro)
3878 CODE:
3879 /* used by the manager thread */
3880 coro_state_destroy (aTHX_ coro);
3881
3882void
3883on_destroy (Coro::State coro, SV *cb)
3884 CODE:
3885 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3886
3887void
3888join (...)
3889 CODE:
3890 CORO_EXECUTE_SLF_XS (slf_init_join);
3891
3892void
3893terminate (...)
3894 CODE:
3895 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3896
3897void
3898cancel (...)
3899 CODE:
3900 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3901
3902int
3903safe_cancel (Coro::State self, ...)
3904 C_ARGS: aTHX_ self, &ST (1), items - 1
3905
3002void 3906void
3003schedule (...) 3907schedule (...)
3004 CODE: 3908 CODE:
3005 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3909 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3910
3911void
3912schedule_to (...)
3913 CODE:
3914 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3915
3916void
3917cede_to (...)
3918 CODE:
3919 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3006 3920
3007void 3921void
3008cede (...) 3922cede (...)
3009 CODE: 3923 CODE:
3010 CORO_EXECUTE_SLF_XS (slf_init_cede); 3924 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
3024void 3938void
3025_set_readyhook (SV *hook) 3939_set_readyhook (SV *hook)
3026 PROTOTYPE: $ 3940 PROTOTYPE: $
3027 CODE: 3941 CODE:
3028 SvREFCNT_dec (coro_readyhook); 3942 SvREFCNT_dec (coro_readyhook);
3943 SvGETMAGIC (hook);
3944 if (SvOK (hook))
3945 {
3029 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3946 coro_readyhook = newSVsv (hook);
3947 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3948 }
3949 else
3950 {
3951 coro_readyhook = 0;
3952 CORO_READYHOOK = 0;
3953 }
3030 3954
3031int 3955int
3032prio (Coro::State coro, int newprio = 0) 3956prio (Coro::State coro, int newprio = 0)
3033 PROTOTYPE: $;$ 3957 PROTOTYPE: $;$
3034 ALIAS: 3958 ALIAS:
… …
3040 if (items > 1) 3964 if (items > 1)
3041 { 3965 {
3042 if (ix) 3966 if (ix)
3043 newprio = coro->prio - newprio; 3967 newprio = coro->prio - newprio;
3044 3968
3045 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3969 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3046 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3970 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3047 3971
3048 coro->prio = newprio; 3972 coro->prio = newprio;
3049 } 3973 }
3050} 3974}
3051 OUTPUT: 3975 OUTPUT:
… …
3066 RETVAL = coro_nready; 3990 RETVAL = coro_nready;
3067 OUTPUT: 3991 OUTPUT:
3068 RETVAL 3992 RETVAL
3069 3993
3070void 3994void
3995suspend (Coro::State self)
3996 PROTOTYPE: $
3997 CODE:
3998 self->flags |= CF_SUSPENDED;
3999
4000void
4001resume (Coro::State self)
4002 PROTOTYPE: $
4003 CODE:
4004 self->flags &= ~CF_SUSPENDED;
4005
4006void
3071_pool_handler (...) 4007_pool_handler (...)
3072 CODE: 4008 CODE:
3073 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 4009 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3074 4010
3075void 4011void
… …
3086 for (i = 1; i < items; ++i) 4022 for (i = 1; i < items; ++i)
3087 av_push (av, SvREFCNT_inc_NN (ST (i))); 4023 av_push (av, SvREFCNT_inc_NN (ST (i)));
3088 4024
3089 if ((SV *)hv == &PL_sv_undef) 4025 if ((SV *)hv == &PL_sv_undef)
3090 { 4026 {
3091 PUSHMARK (SP); 4027 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3092 EXTEND (SP, 2);
3093 PUSHs (sv_Coro);
3094 PUSHs ((SV *)cv_pool_handler);
3095 PUTBACK;
3096 call_sv (cv_coro_new, G_SCALAR);
3097 SPAGAIN;
3098
3099 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4028 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4029 SvREFCNT_dec (sv);
3100 } 4030 }
3101 4031
3102 { 4032 {
3103 struct coro *coro = SvSTATE_hv (hv); 4033 struct coro *coro = SvSTATE_hv (hv);
3104 4034
… …
3106 assert (!coro->invoke_av); 4036 assert (!coro->invoke_av);
3107 coro->invoke_cb = SvREFCNT_inc (cb); 4037 coro->invoke_cb = SvREFCNT_inc (cb);
3108 coro->invoke_av = av; 4038 coro->invoke_av = av;
3109 } 4039 }
3110 4040
3111 api_ready ((SV *)hv); 4041 api_ready (aTHX_ (SV *)hv);
3112 4042
3113 if (GIMME_V != G_VOID) 4043 if (GIMME_V != G_VOID)
3114 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); 4044 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3115 else 4045 else
3116 SvREFCNT_dec (hv); 4046 SvREFCNT_dec (hv);
… …
3128rouse_wait (...) 4058rouse_wait (...)
3129 PROTOTYPE: ;$ 4059 PROTOTYPE: ;$
3130 PPCODE: 4060 PPCODE:
3131 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4061 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3132 4062
4063void
4064on_enter (SV *block)
4065 ALIAS:
4066 on_leave = 1
4067 PROTOTYPE: &
4068 CODE:
4069{
4070 struct coro *coro = SvSTATE_current;
4071 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4072
4073 block = s_get_cv_croak (block);
4074
4075 if (!*avp)
4076 *avp = newAV ();
4077
4078 av_push (*avp, SvREFCNT_inc (block));
4079
4080 if (!ix)
4081 on_enterleave_call (aTHX_ block);
4082
4083 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4084 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4085 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4086}
4087
3133 4088
3134MODULE = Coro::State PACKAGE = PerlIO::cede 4089MODULE = Coro::State PACKAGE = PerlIO::cede
3135 4090
3136BOOT: 4091BOOT:
3137 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4092 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3140MODULE = Coro::State PACKAGE = Coro::Semaphore 4095MODULE = Coro::State PACKAGE = Coro::Semaphore
3141 4096
3142SV * 4097SV *
3143new (SV *klass, SV *count = 0) 4098new (SV *klass, SV *count = 0)
3144 CODE: 4099 CODE:
4100{
4101 int semcnt = 1;
4102
4103 if (count)
4104 {
4105 SvGETMAGIC (count);
4106
4107 if (SvOK (count))
4108 semcnt = SvIV (count);
4109 }
4110
3145 RETVAL = sv_bless ( 4111 RETVAL = sv_bless (
3146 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4112 coro_waitarray_new (aTHX_ semcnt),
3147 GvSTASH (CvGV (cv)) 4113 GvSTASH (CvGV (cv))
3148 ); 4114 );
4115}
3149 OUTPUT: 4116 OUTPUT:
3150 RETVAL 4117 RETVAL
3151 4118
3152# helper for Coro::Channel 4119# helper for Coro::Channel and others
3153SV * 4120SV *
3154_alloc (int count) 4121_alloc (int count)
3155 CODE: 4122 CODE:
3156 RETVAL = coro_waitarray_new (aTHX_ count); 4123 RETVAL = coro_waitarray_new (aTHX_ count);
3157 OUTPUT: 4124 OUTPUT:
… …
3199 XSRETURN_NO; 4166 XSRETURN_NO;
3200} 4167}
3201 4168
3202void 4169void
3203waiters (SV *self) 4170waiters (SV *self)
3204 PPCODE: 4171 PPCODE:
3205{ 4172{
3206 AV *av = (AV *)SvRV (self); 4173 AV *av = (AV *)SvRV (self);
3207 int wcount = AvFILLp (av) + 1 - 1; 4174 int wcount = AvFILLp (av) + 1 - 1;
3208 4175
3209 if (GIMME_V == G_SCALAR) 4176 if (GIMME_V == G_SCALAR)
… …
3215 for (i = 1; i <= wcount; ++i) 4182 for (i = 1; i <= wcount; ++i)
3216 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4183 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3217 } 4184 }
3218} 4185}
3219 4186
4187MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4188
4189void
4190_may_delete (SV *sem, int count, unsigned int extra_refs)
4191 PPCODE:
4192{
4193 AV *av = (AV *)SvRV (sem);
4194
4195 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4196 && AvFILLp (av) == 0 /* no waiters, just count */
4197 && SvIV (AvARRAY (av)[0]) == count)
4198 XSRETURN_YES;
4199
4200 XSRETURN_NO;
4201}
4202
3220MODULE = Coro::State PACKAGE = Coro::Signal 4203MODULE = Coro::State PACKAGE = Coro::Signal
3221 4204
3222SV * 4205SV *
3223new (SV *klass) 4206new (SV *klass)
3224 CODE: 4207 CODE:
… …
3236 4219
3237void 4220void
3238broadcast (SV *self) 4221broadcast (SV *self)
3239 CODE: 4222 CODE:
3240{ 4223{
3241 AV *av = (AV *)SvRV (self); 4224 AV *av = (AV *)SvRV (self);
3242 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4225 coro_signal_wake (aTHX_ av, AvFILLp (av));
3243} 4226}
3244 4227
3245void 4228void
3246send (SV *self) 4229send (SV *self)
… …
3254 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4237 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3255} 4238}
3256 4239
3257IV 4240IV
3258awaited (SV *self) 4241awaited (SV *self)
3259 CODE: 4242 CODE:
3260 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4243 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3261 OUTPUT: 4244 OUTPUT:
3262 RETVAL 4245 RETVAL
3263 4246
3264 4247
… …
3269 4252
3270void 4253void
3271_schedule (...) 4254_schedule (...)
3272 CODE: 4255 CODE:
3273{ 4256{
3274 static int incede; 4257 static int incede;
3275 4258
3276 api_cede_notself (aTHX); 4259 api_cede_notself (aTHX);
3277 4260
3278 ++incede; 4261 ++incede;
3279 while (coro_nready >= incede && api_cede (aTHX)) 4262 while (coro_nready >= incede && api_cede (aTHX))
… …
3295 4278
3296void 4279void
3297_register (char *target, char *proto, SV *req) 4280_register (char *target, char *proto, SV *req)
3298 CODE: 4281 CODE:
3299{ 4282{
3300 CV *req_cv = coro_sv_2cv (aTHX_ req); 4283 SV *req_cv = s_get_cv_croak (req);
3301 /* newXSproto doesn't return the CV on 5.8 */ 4284 /* newXSproto doesn't return the CV on 5.8 */
3302 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4285 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3303 sv_setpv ((SV *)slf_cv, proto); 4286 sv_setpv ((SV *)slf_cv, proto);
3304 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4287 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3305} 4288}
3306 4289
4290MODULE = Coro::State PACKAGE = Coro::Select
4291
4292void
4293patch_pp_sselect ()
4294 CODE:
4295 if (!coro_old_pp_sselect)
4296 {
4297 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4298 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4299 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4300 }
4301
4302void
4303unpatch_pp_sselect ()
4304 CODE:
4305 if (coro_old_pp_sselect)
4306 {
4307 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4308 coro_old_pp_sselect = 0;
4309 }
4310
4311MODULE = Coro::State PACKAGE = Coro::Util
4312
4313void
4314_exit (int code)
4315 CODE:
4316 _exit (code);
4317
4318NV
4319time ()
4320 CODE:
4321 RETVAL = nvtime (aTHX);
4322 OUTPUT:
4323 RETVAL
4324
4325NV
4326gettimeofday ()
4327 PPCODE:
4328{
4329 UV tv [2];
4330 u2time (aTHX_ tv);
4331 EXTEND (SP, 2);
4332 PUSHs (sv_2mortal (newSVuv (tv [0])));
4333 PUSHs (sv_2mortal (newSVuv (tv [1])));
4334}
4335

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