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Comparing Coro/Coro/State.xs (file contents):
Revision 1.288 by root, Mon Nov 17 07:14:50 2008 UTC vs.
Revision 1.449 by root, Sun Jun 21 17:02:49 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, don't ask 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) && PERLSUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif
108
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD
111#endif
112
113#ifndef CORO_STACKGUARD
114# define CORO_STACKGUARD 0
115#endif 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
120#endif 80#endif
121 81
122/* The next macros try to return the current stack pointer, in an as 82/* The next macros try to return the current stack pointer, in an as
123 * portable way as possible. */ 83 * portable way as possible. */
124#if __GNUC__ >= 4 84#if __GNUC__ >= 4
85# define dSTACKLEVEL int stacklevel_dummy
125# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 86# define STACKLEVEL __builtin_frame_address (0)
126#else 87#else
127# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 88# define dSTACKLEVEL volatile void *stacklevel
89# define STACKLEVEL ((void *)&stacklevel)
128#endif 90#endif
129 91
130#define IN_DESTRUCT (PL_main_cv == Nullcv) 92#define IN_DESTRUCT PL_dirty
131
132#if __GNUC__ >= 3
133# define attribute(x) __attribute__(x)
134# define expect(expr,value) __builtin_expect ((expr),(value))
135# define INLINE static inline
136#else
137# define attribute(x)
138# define expect(expr,value) (expr)
139# define INLINE static
140#endif
141
142#define expect_false(expr) expect ((expr) != 0, 0)
143#define expect_true(expr) expect ((expr) != 0, 1)
144
145#define NOINLINE attribute ((noinline))
146 93
147#include "CoroAPI.h" 94#include "CoroAPI.h"
95#define GCoroAPI (&coroapi) /* very sneaky */
148 96
149#ifdef USE_ITHREADS 97#ifdef USE_ITHREADS
150# if CORO_PTHREAD 98# if CORO_PTHREAD
151static void *coro_thx; 99static void *coro_thx;
152# endif 100# endif
153#endif 101#endif
154 102
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
155static 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]);
115
116/* we hijack an hopefully unused CV flag for our purposes */
117#define CVf_SLF 0x4000
118static OP *pp_slf (pTHX);
119static void slf_destroy (pTHX_ struct coro *coro);
156 120
157static U32 cctx_gen; 121static U32 cctx_gen;
158static size_t cctx_stacksize = CORO_STACKSIZE; 122static size_t cctx_stacksize = CORO_STACKSIZE;
159static struct CoroAPI coroapi; 123static struct CoroAPI coroapi;
160static AV *main_mainstack; /* used to differentiate between $main and others */ 124static AV *main_mainstack; /* used to differentiate between $main and others */
161static JMPENV *main_top_env; 125static JMPENV *main_top_env;
162static HV *coro_state_stash, *coro_stash; 126static HV *coro_state_stash, *coro_stash;
163static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 127static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
164 128
129static AV *av_destroy; /* destruction queue */
130static SV *sv_manager; /* the manager coro */
131static SV *sv_idle; /* $Coro::idle */
132
165static GV *irsgv; /* $/ */ 133static GV *irsgv; /* $/ */
166static GV *stdoutgv; /* *STDOUT */ 134static GV *stdoutgv; /* *STDOUT */
167static SV *rv_diehook; 135static SV *rv_diehook;
168static SV *rv_warnhook; 136static SV *rv_warnhook;
169static HV *hv_sig; /* %SIG */ 137static HV *hv_sig; /* %SIG */
170 138
171/* async_pool helper stuff */ 139/* async_pool helper stuff */
172static SV *sv_pool_rss; 140static SV *sv_pool_rss;
173static SV *sv_pool_size; 141static SV *sv_pool_size;
142static SV *sv_async_pool_idle; /* description string */
174static AV *av_async_pool; 143static AV *av_async_pool; /* idle pool */
144static SV *sv_Coro; /* class string */
145static CV *cv_pool_handler;
175 146
176/* Coro::AnyEvent */ 147/* Coro::AnyEvent */
177static SV *sv_activity; 148static SV *sv_activity;
178 149
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
179static struct coro_cctx *cctx_first; 156static struct coro_cctx *cctx_first;
180static int cctx_count, cctx_idle; 157static int cctx_count, cctx_idle;
181 158
182enum { 159enum
160{
183 CC_MAPPED = 0x01, 161 CC_MAPPED = 0x01,
184 CC_NOREUSE = 0x02, /* throw this away after tracing */ 162 CC_NOREUSE = 0x02, /* throw this away after tracing */
185 CC_TRACE = 0x04, 163 CC_TRACE = 0x04,
186 CC_TRACE_SUB = 0x08, /* trace sub calls */ 164 CC_TRACE_SUB = 0x08, /* trace sub calls */
187 CC_TRACE_LINE = 0x10, /* trace each statement */ 165 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
192typedef struct coro_cctx 170typedef struct coro_cctx
193{ 171{
194 struct coro_cctx *next; 172 struct coro_cctx *next;
195 173
196 /* the stack */ 174 /* the stack */
197 void *sptr; 175 struct coro_stack stack;
198 size_t ssize;
199 176
200 /* cpu state */ 177 /* cpu state */
201 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
202 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
203 JMPENV *top_env; 182 JMPENV *top_env;
204 coro_context cctx; 183 coro_context cctx;
205 184
206 U32 gen; 185 U32 gen;
207#if CORO_USE_VALGRIND 186#if CORO_USE_VALGRIND
208 int valgrind_id; 187 int valgrind_id;
209#endif 188#endif
210 unsigned char flags; 189 unsigned char flags;
211} coro_cctx; 190} coro_cctx;
212 191
192static coro_cctx *cctx_current; /* the currently running cctx */
193
194/*****************************************************************************/
195
196static MGVTBL coro_state_vtbl;
197
213enum { 198enum
199{
214 CF_RUNNING = 0x0001, /* coroutine is running */ 200 CF_RUNNING = 0x0001, /* coroutine is running */
215 CF_READY = 0x0002, /* coroutine is ready */ 201 CF_READY = 0x0002, /* coroutine is ready */
216 CF_NEW = 0x0004, /* has never been switched to */ 202 CF_NEW = 0x0004, /* has never been switched to */
217 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) */
218}; 206};
219 207
220/* 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 */
221typedef struct 209typedef struct
222{ 210{
223 SV *defsv;
224 AV *defav;
225 SV *errsv;
226 SV *irsgv;
227#define VAR(name,type) type name; 211 #define VARx(name,expr,type) type name;
228# include "state.h" 212 #include "state.h"
229#undef VAR
230} perl_slots; 213} perl_slots;
231 214
215/* how many context stack entries do we need for perl_slots */
232#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))
233 217
234/* this is a structure representing a perl-level coroutine */ 218/* this is a structure representing a perl-level coroutine */
235struct coro { 219struct coro
220{
236 /* the C coroutine allocated to this perl coroutine, if any */ 221 /* the C coroutine allocated to this perl coroutine, if any */
237 coro_cctx *cctx; 222 coro_cctx *cctx;
223
224 /* ready queue */
225 struct coro *next_ready;
238 226
239 /* state data */ 227 /* state data */
240 struct CoroSLF slf_frame; /* saved slf frame */ 228 struct CoroSLF slf_frame; /* saved slf frame */
241 AV *mainstack; 229 AV *mainstack;
242 perl_slots *slot; /* basically the saved sp */ 230 perl_slots *slot; /* basically the saved sp */
243 231
232 CV *startcv; /* the CV to execute */
244 AV *args; /* data associated with this coroutine (initial args) */ 233 AV *args; /* data associated with this coroutine (initial args) */
245 int refcnt; /* coroutines are refcounted, yes */
246 int flags; /* CF_ flags */ 234 int flags; /* CF_ flags */
247 HV *hv; /* the perl hash associated with this coro, if any */ 235 HV *hv; /* the perl hash associated with this coro, if any */
248 void (*on_destroy)(pTHX_ struct coro *coro);
249 236
250 /* statistics */ 237 /* statistics */
251 int usecount; /* number of transfers to this coro */ 238 int usecount; /* number of transfers to this coro */
252 239
253 /* coro process data */ 240 /* coro process data */
254 int prio; 241 int prio;
255 SV *throw; /* exception to be thrown */ 242 SV *except; /* exception to be thrown */
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 */
256 246
257 /* async_pool */ 247 /* async_pool */
258 SV *saved_deffh; 248 SV *saved_deffh;
249 SV *invoke_cb;
250 AV *invoke_av;
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;
259 261
260 /* linked list */ 262 /* linked list */
261 struct coro *next, *prev; 263 struct coro *next, *prev;
262}; 264};
263 265
264typedef struct coro *Coro__State; 266typedef struct coro *Coro__State;
265typedef struct coro *Coro__State_or_hashref; 267typedef struct coro *Coro__State_or_hashref;
266 268
267/* the following variables are effectively part of the perl context */ 269/* the following variables are effectively part of the perl context */
268/* and get copied between struct coro and these variables */ 270/* and get copied between struct coro and these variables */
269/* the mainr easonw e don't support windows process emulation */ 271/* the main reason we don't support windows process emulation */
270static struct CoroSLF slf_frame; /* the current slf frame */ 272static struct CoroSLF slf_frame; /* the current slf frame */
271static SV *coro_throw;
272 273
273/** Coro ********************************************************************/ 274/** Coro ********************************************************************/
274 275
275#define PRIO_MAX 3 276#define CORO_PRIO_MAX 3
276#define PRIO_HIGH 1 277#define CORO_PRIO_HIGH 1
277#define PRIO_NORMAL 0 278#define CORO_PRIO_NORMAL 0
278#define PRIO_LOW -1 279#define CORO_PRIO_LOW -1
279#define PRIO_IDLE -3 280#define CORO_PRIO_IDLE -3
280#define PRIO_MIN -4 281#define CORO_PRIO_MIN -4
281 282
282/* for Coro.pm */ 283/* for Coro.pm */
283static SV *coro_current; 284static SV *coro_current;
284static SV *coro_readyhook; 285static SV *coro_readyhook;
285static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 286static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
287static CV *cv_coro_run;
286static struct coro *coro_first; 288static struct coro *coro_first;
287#define coro_nready coroapi.nready 289#define coro_nready coroapi.nready
288 290
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
289/** lowlevel stuff **********************************************************/ 386/** lowlevel stuff **********************************************************/
290 387
291static SV * 388static SV * ecb_noinline
292coro_get_sv (pTHX_ const char *name, int create) 389coro_get_sv (pTHX_ const char *name, int create)
293{ 390{
294#if PERL_VERSION_ATLEAST (5,10,0) 391#if PERL_VERSION_ATLEAST (5,10,0)
295 /* 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 */
296 get_sv (name, create); 393 get_sv (name, create);
297#endif 394#endif
298 return get_sv (name, create); 395 return get_sv (name, create);
299} 396}
300 397
301static AV * 398static AV * ecb_noinline
302coro_get_av (pTHX_ const char *name, int create) 399coro_get_av (pTHX_ const char *name, int create)
303{ 400{
304#if PERL_VERSION_ATLEAST (5,10,0) 401#if PERL_VERSION_ATLEAST (5,10,0)
305 /* 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 */
306 get_av (name, create); 403 get_av (name, create);
307#endif 404#endif
308 return get_av (name, create); 405 return get_av (name, create);
309} 406}
310 407
311static HV * 408static HV * ecb_noinline
312coro_get_hv (pTHX_ const char *name, int create) 409coro_get_hv (pTHX_ const char *name, int create)
313{ 410{
314#if PERL_VERSION_ATLEAST (5,10,0) 411#if PERL_VERSION_ATLEAST (5,10,0)
315 /* 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 */
316 get_hv (name, create); 413 get_hv (name, create);
317#endif 414#endif
318 return get_hv (name, create); 415 return get_hv (name, create);
319} 416}
320 417
321static AV * 418ecb_inline void
419coro_times_update (void)
420{
421#ifdef coro_clock_gettime
422 struct timespec ts;
423
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 *
322coro_clone_padlist (pTHX_ CV *cv) 524coro_derive_padlist (pTHX_ CV *cv)
323{ 525{
324 AV *padlist = CvPADLIST (cv); 526 PADLIST *padlist = CvPADLIST (cv);
325 AV *newpadlist, *newpad; 527 PADLIST *newpadlist;
528 PADNAMELIST *padnames;
529 PAD *newpad;
530 PADOFFSET off = PadlistMAX (padlist) + 1;
326 531
327 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. */
328 AvREAL_off (newpadlist); 560 AvREAL_off (newpadlist);
329#if PERL_VERSION_ATLEAST (5,10,0)
330 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
331#else
332 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
333#endif 561#endif
334 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
335 --AvFILLp (padlist);
336 562
337 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 563 /* Already extended to 2 elements by newPADLIST. */
338 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;
339 571
340 return newpadlist; 572 return newpadlist;
341} 573}
342 574
343static void 575ecb_inline void
344free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
345{ 577{
346 /* may be during global destruction */ 578 /* may be during global destruction */
347 if (SvREFCNT (padlist)) 579 if (!IN_DESTRUCT)
348 { 580 {
349 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
350 while (i >= 0) 582
583 while (i > 0) /* special-case index 0 */
351 { 584 {
352 SV **svp = av_fetch (padlist, i--, FALSE); 585 /* we try to be extra-careful here */
586 PAD *pad = PadlistARRAY (padlist)[i--];
587
353 if (svp) 588 if (pad)
354 { 589 {
355 SV *sv; 590 I32 j = PadMAX (pad);
356 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 591
592 while (j >= 0)
357 SvREFCNT_dec (sv); 593 SvREFCNT_dec (PadARRAY (pad)[j--]);
358 594
595 PadMAX (pad) = -1;
359 SvREFCNT_dec (*svp); 596 SvREFCNT_dec (pad);
360 } 597 }
361 } 598 }
362 599
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);
363 SvREFCNT_dec ((SV*)padlist); 608 SvREFCNT_dec ((SV*)padlist);
609#endif
364 } 610 }
365} 611}
366 612
367static int 613static int
368coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 614coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
369{ 615{
370 AV *padlist; 616 PADLIST *padlist;
371 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;
372 619
373 /* casting is fun. */ 620 /* perl manages to free our internal AV and _then_ call us */
374 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 621 if (IN_DESTRUCT)
622 return 0;
623
624 while (len--)
375 free_padlist (aTHX_ padlist); 625 free_padlist (aTHX_ padlists[len]);
376
377 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
378 626
379 return 0; 627 return 0;
380} 628}
381
382#define CORO_MAGIC_type_cv 26
383#define CORO_MAGIC_type_state PERL_MAGIC_ext
384 629
385static MGVTBL coro_cv_vtbl = { 630static MGVTBL coro_cv_vtbl = {
386 0, 0, 0, 0, 631 0, 0, 0, 0,
387 coro_cv_free 632 coro_cv_free
388}; 633};
389 634
390#define CORO_MAGIC_NN(sv, type) \
391 (expect_true (SvMAGIC (sv)->mg_type == type) \
392 ? SvMAGIC (sv) \
393 : mg_find (sv, type))
394
395#define CORO_MAGIC(sv, type) \
396 (expect_true (SvMAGIC (sv)) \
397 ? CORO_MAGIC_NN (sv, type) \
398 : 0)
399
400#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
401#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
402
403INLINE struct coro *
404SvSTATE_ (pTHX_ SV *coro)
405{
406 HV *stash;
407 MAGIC *mg;
408
409 if (SvROK (coro))
410 coro = SvRV (coro);
411
412 if (expect_false (SvTYPE (coro) != SVt_PVHV))
413 croak ("Coro::State object required");
414
415 stash = SvSTASH (coro);
416 if (expect_false (stash != coro_stash && stash != coro_state_stash))
417 {
418 /* very slow, but rare, check */
419 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
420 croak ("Coro::State object required");
421 }
422
423 mg = CORO_MAGIC_state (coro);
424 return (struct coro *)mg->mg_ptr;
425}
426
427#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
428
429/* faster than SvSTATE, but expects a coroutine hv */
430#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
431#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
432
433/* the next two functions merely cache the padlists */ 635/* the next two functions merely cache the padlists */
434static void 636ecb_inline void
435get_padlist (pTHX_ CV *cv) 637get_padlist (pTHX_ CV *cv)
436{ 638{
437 MAGIC *mg = CORO_MAGIC_cv (cv); 639 MAGIC *mg = CORO_MAGIC_cv (cv);
438 AV *av; 640 size_t *lenp;
439 641
440 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 642 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
441 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 643 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
442 else 644 else
443 { 645 {
444#if CORO_PREFER_PERL_FUNCTIONS 646#if CORO_PREFER_PERL_FUNCTIONS
445 /* this is probably cleaner? but also slower! */ 647 /* this is probably cleaner? but also slower! */
446 /* in practise, it seems to be less stable */ 648 /* in practise, it seems to be less stable */
447 CV *cp = Perl_cv_clone (cv); 649 CV *cp = Perl_cv_clone (aTHX_ cv);
448 CvPADLIST (cv) = CvPADLIST (cp); 650 CvPADLIST (cv) = CvPADLIST (cp);
449 CvPADLIST (cp) = 0; 651 CvPADLIST (cp) = 0;
450 SvREFCNT_dec (cp); 652 SvREFCNT_dec (cp);
451#else 653#else
452 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 654 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
453#endif 655#endif
454 } 656 }
455} 657}
456 658
457static void 659ecb_inline void
458put_padlist (pTHX_ CV *cv) 660put_padlist (pTHX_ CV *cv)
459{ 661{
460 MAGIC *mg = CORO_MAGIC_cv (cv); 662 MAGIC *mg = CORO_MAGIC_cv (cv);
461 AV *av;
462 663
463 if (expect_false (!mg)) 664 if (ecb_expect_false (!mg))
665 {
464 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);
465 674
466 av = (AV *)mg->mg_obj; 675 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
467
468 if (expect_false (AvFILLp (av) >= AvMAX (av)))
469 av_extend (av, AvMAX (av) + 1);
470
471 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
472} 676}
473 677
474/** 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);
475 734
476static void 735static void
477load_perl (pTHX_ Coro__State c) 736load_perl (pTHX_ Coro__State c)
478{ 737{
479 perl_slots *slot = c->slot; 738 perl_slots *slot = c->slot;
480 c->slot = 0; 739 c->slot = 0;
481 740
482 PL_mainstack = c->mainstack; 741 PL_mainstack = c->mainstack;
483 742
484 GvSV (PL_defgv) = slot->defsv; 743#if CORO_JIT
485 GvAV (PL_defgv) = slot->defav; 744 load_perl_slots (slot);
486 GvSV (PL_errgv) = slot->errsv; 745#else
487 GvSV (irsgv) = slot->irsgv;
488
489 #define VAR(name,type) PL_ ## name = slot->name; 746 #define VARx(name,expr,type) expr = slot->name;
490 # include "state.h" 747 #include "state.h"
491 #undef VAR 748#endif
492 749
493 { 750 {
494 dSP; 751 dSP;
495 752
496 CV *cv; 753 CV *cv;
497 754
498 /* now do the ugly restore mess */ 755 /* now do the ugly restore mess */
499 while (expect_true (cv = (CV *)POPs)) 756 while (ecb_expect_true (cv = (CV *)POPs))
500 { 757 {
501 put_padlist (aTHX_ cv); /* mark this padlist as available */ 758 put_padlist (aTHX_ cv); /* mark this padlist as available */
502 CvDEPTH (cv) = PTR2IV (POPs); 759 CvDEPTH (cv) = PTR2IV (POPs);
503 CvPADLIST (cv) = (AV *)POPs; 760 CvPADLIST (cv) = (PADLIST *)POPs;
504 } 761 }
505 762
506 PUTBACK; 763 PUTBACK;
507 } 764 }
508 765
509 slf_frame = c->slf_frame; 766 slf_frame = c->slf_frame;
510 coro_throw = c->throw; 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);
511} 786}
512 787
513static void 788static void
514save_perl (pTHX_ Coro__State c) 789save_perl (pTHX_ Coro__State c)
515{ 790{
516 c->throw = coro_throw; 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
809 c->except = CORO_THROW;
517 c->slf_frame = slf_frame; 810 c->slf_frame = slf_frame;
518 811
519 { 812 {
520 dSP; 813 dSP;
521 I32 cxix = cxstack_ix; 814 I32 cxix = cxstack_ix;
… …
529 822
530 XPUSHs (Nullsv); 823 XPUSHs (Nullsv);
531 /* this loop was inspired by pp_caller */ 824 /* this loop was inspired by pp_caller */
532 for (;;) 825 for (;;)
533 { 826 {
534 while (expect_true (cxix >= 0)) 827 while (ecb_expect_true (cxix >= 0))
535 { 828 {
536 PERL_CONTEXT *cx = &ccstk[cxix--]; 829 PERL_CONTEXT *cx = &ccstk[cxix--];
537 830
538 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))
539 { 832 {
540 CV *cv = cx->blk_sub.cv; 833 CV *cv = cx->blk_sub.cv;
541 834
542 if (expect_true (CvDEPTH (cv))) 835 if (ecb_expect_true (CvDEPTH (cv)))
543 { 836 {
544 EXTEND (SP, 3); 837 EXTEND (SP, 3);
545 PUSHs ((SV *)CvPADLIST (cv)); 838 PUSHs ((SV *)CvPADLIST (cv));
546 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 839 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
547 PUSHs ((SV *)cv); 840 PUSHs ((SV *)cv);
… …
550 get_padlist (aTHX_ cv); 843 get_padlist (aTHX_ cv);
551 } 844 }
552 } 845 }
553 } 846 }
554 847
555 if (expect_true (top_si->si_type == PERLSI_MAIN)) 848 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
556 break; 849 break;
557 850
558 top_si = top_si->si_prev; 851 top_si = top_si->si_prev;
559 ccstk = top_si->si_cxstack; 852 ccstk = top_si->si_cxstack;
560 cxix = top_si->si_cxix; 853 cxix = top_si->si_cxix;
… …
562 855
563 PUTBACK; 856 PUTBACK;
564 } 857 }
565 858
566 /* allocate some space on the context stack for our purposes */ 859 /* allocate some space on the context stack for our purposes */
567 /* we manually unroll here, as usually 2 slots is enough */ 860 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
568 if (SLOT_COUNT >= 1) CXINC;
569 if (SLOT_COUNT >= 2) CXINC;
570 if (SLOT_COUNT >= 3) CXINC;
571 { 861 {
572 int i; 862 unsigned int i;
863
573 for (i = 3; i < SLOT_COUNT; ++i) 864 for (i = 0; i < SLOT_COUNT; ++i)
574 CXINC; 865 CXINC;
575 } 866
576 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 867 cxstack_ix -= SLOT_COUNT; /* undo allocation */
868 }
577 869
578 c->mainstack = PL_mainstack; 870 c->mainstack = PL_mainstack;
579 871
580 { 872 {
581 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 873 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
582 874
583 slot->defav = GvAV (PL_defgv); 875#if CORO_JIT
584 slot->defsv = DEFSV; 876 save_perl_slots (slot);
585 slot->errsv = ERRSV; 877#else
586 slot->irsgv = GvSV (irsgv);
587
588 #define VAR(name,type) slot->name = PL_ ## name; 878 #define VARx(name,expr,type) slot->name = expr;
589 # include "state.h" 879 #include "state.h"
590 #undef VAR 880#endif
591 } 881 }
592} 882}
593 883
594/* 884/*
595 * allocate various perl stacks. This is almost an exact copy 885 * allocate various perl stacks. This is almost an exact copy
596 * of perl.c:init_stacks, except that it uses less memory 886 * of perl.c:init_stacks, except that it uses less memory
597 * on the (sometimes correct) assumption that coroutines do 887 * on the (sometimes correct) assumption that coroutines do
598 * not usually need a lot of stackspace. 888 * not usually need a lot of stackspace.
599 */ 889 */
600#if CORO_PREFER_PERL_FUNCTIONS 890#if CORO_PREFER_PERL_FUNCTIONS
601# define coro_init_stacks init_stacks 891# define coro_init_stacks(thx) init_stacks ()
602#else 892#else
603static void 893static void
604coro_init_stacks (pTHX) 894coro_init_stacks (pTHX)
605{ 895{
606 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() */
607 PL_curstackinfo->si_type = PERLSI_MAIN; 897 PL_curstackinfo->si_type = PERLSI_MAIN;
608 PL_curstack = PL_curstackinfo->si_stack; 898 PL_curstack = PL_curstackinfo->si_stack;
609 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 899 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
610 900
611 PL_stack_base = AvARRAY(PL_curstack); 901 PL_stack_base = AvARRAY(PL_curstack);
… …
626#endif 916#endif
627 917
628 New(54,PL_scopestack,8,I32); 918 New(54,PL_scopestack,8,I32);
629 PL_scopestack_ix = 0; 919 PL_scopestack_ix = 0;
630 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
631 924
632 New(54,PL_savestack,24,ANY); 925 New(54,PL_savestack,24,ANY);
633 PL_savestack_ix = 0; 926 PL_savestack_ix = 0;
634 PL_savestack_max = 24; 927 PL_savestack_max = 24;
635 928
… …
663 } 956 }
664 957
665 Safefree (PL_tmps_stack); 958 Safefree (PL_tmps_stack);
666 Safefree (PL_markstack); 959 Safefree (PL_markstack);
667 Safefree (PL_scopestack); 960 Safefree (PL_scopestack);
961#if HAS_SCOPESTACK_NAME
962 Safefree (PL_scopestack_name);
963#endif
668 Safefree (PL_savestack); 964 Safefree (PL_savestack);
669#if !PERL_VERSION_ATLEAST (5,10,0) 965#if !PERL_VERSION_ATLEAST (5,10,0)
670 Safefree (PL_retstack); 966 Safefree (PL_retstack);
671#endif 967#endif
672} 968}
673 969
970#define CORO_RSS \
971 rss += sizeof (SYM (curstackinfo)); \
972 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
973 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
974 rss += SYM (tmps_max) * sizeof (SV *); \
975 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
976 rss += SYM (scopestack_max) * sizeof (I32); \
977 rss += SYM (savestack_max) * sizeof (ANY);
978
674static size_t 979static size_t
675coro_rss (pTHX_ struct coro *coro) 980coro_rss (pTHX_ struct coro *coro)
676{ 981{
677 size_t rss = sizeof (*coro); 982 size_t rss = sizeof (*coro);
678 983
679 if (coro->mainstack) 984 if (coro->mainstack)
680 { 985 {
681 perl_slots tmp_slot;
682 perl_slots *slot;
683
684 if (coro->flags & CF_RUNNING) 986 if (coro->flags & CF_RUNNING)
685 { 987 {
686 slot = &tmp_slot; 988 #define SYM(sym) PL_ ## sym
687 989 CORO_RSS;
688 #define VAR(name,type) slot->name = PL_ ## name;
689 # include "state.h"
690 #undef VAR 990 #undef SYM
691 } 991 }
692 else 992 else
693 slot = coro->slot;
694
695 if (slot)
696 { 993 {
697 rss += sizeof (slot->curstackinfo); 994 #define SYM(sym) coro->slot->sym
698 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 995 CORO_RSS;
699 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 996 #undef SYM
700 rss += slot->tmps_max * sizeof (SV *);
701 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
702 rss += slot->scopestack_max * sizeof (I32);
703 rss += slot->savestack_max * sizeof (ANY);
704
705#if !PERL_VERSION_ATLEAST (5,10,0)
706 rss += slot->retstack_max * sizeof (OP *);
707#endif
708 } 997 }
709 } 998 }
710 999
711 return rss; 1000 return rss;
712} 1001}
… …
725#endif 1014#endif
726 1015
727/* 1016/*
728 * This overrides the default magic get method of %SIG elements. 1017 * This overrides the default magic get method of %SIG elements.
729 * 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
730 * 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),
731 * readback here. 1020 * we just provide our own readback here.
732 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
733 * not expecting this to actually change the hook. This is a potential problem
734 * when a schedule happens then, but we ignore this.
735 */ 1021 */
736static int 1022static int ecb_cold
737coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1023coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
738{ 1024{
739 const char *s = MgPV_nolen_const (mg); 1025 const char *s = MgPV_nolen_const (mg);
740 1026
741 if (*s == '_') 1027 if (*s == '_')
742 { 1028 {
743 SV **svp = 0; 1029 SV **svp = 0;
744 1030
745 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1031 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
746 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1032 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
747 1033
748 if (svp) 1034 if (svp)
749 { 1035 {
750 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);
751 return 0; 1046 return 0;
752 } 1047 }
753 } 1048 }
754 1049
755 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1050 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
756} 1051}
757 1052
758static int 1053static int ecb_cold
759coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1054coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
760{ 1055{
761 const char *s = MgPV_nolen_const (mg); 1056 const char *s = MgPV_nolen_const (mg);
762 1057
763 if (*s == '_') 1058 if (*s == '_')
… …
777 } 1072 }
778 1073
779 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1074 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
780} 1075}
781 1076
782static int 1077static int ecb_cold
783coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1078coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
784{ 1079{
785 const char *s = MgPV_nolen_const (mg); 1080 const char *s = MgPV_nolen_const (mg);
786 1081
787 if (*s == '_') 1082 if (*s == '_')
… …
792 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1087 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
793 1088
794 if (svp) 1089 if (svp)
795 { 1090 {
796 SV *old = *svp; 1091 SV *old = *svp;
797 *svp = newSVsv (sv); 1092 *svp = SvOK (sv) ? newSVsv (sv) : 0;
798 SvREFCNT_dec (old); 1093 SvREFCNT_dec (old);
799 return 0; 1094 return 0;
800 } 1095 }
801 } 1096 }
802 1097
… …
814slf_check_nop (pTHX_ struct CoroSLF *frame) 1109slf_check_nop (pTHX_ struct CoroSLF *frame)
815{ 1110{
816 return 0; 1111 return 0;
817} 1112}
818 1113
819static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1114static int
1115slf_check_repeat (pTHX_ struct CoroSLF *frame)
1116{
1117 return 1;
1118}
1119
1120static UNOP init_perl_op;
1121
1122ecb_noinline static void /* noinline to keep it out of the transfer fast path */
820coro_setup (pTHX_ struct coro *coro) 1123init_perl (pTHX_ struct coro *coro)
821{ 1124{
822 /* 1125 /*
823 * emulate part of the perl startup here. 1126 * emulate part of the perl startup here.
824 */ 1127 */
825 coro_init_stacks (aTHX); 1128 coro_init_stacks (aTHX);
826 1129
827 PL_runops = RUNOPS_DEFAULT; 1130 PL_runops = RUNOPS_DEFAULT;
828 PL_curcop = &PL_compiling; 1131 PL_curcop = &PL_compiling;
829 PL_in_eval = EVAL_NULL; 1132 PL_in_eval = EVAL_NULL;
830 PL_comppad = 0; 1133 PL_comppad = 0;
1134 PL_comppad_name = 0;
1135 PL_comppad_name_fill = 0;
1136 PL_comppad_name_floor = 0;
831 PL_curpm = 0; 1137 PL_curpm = 0;
832 PL_curpad = 0; 1138 PL_curpad = 0;
833 PL_localizing = 0; 1139 PL_localizing = 0;
834 PL_dirty = 0;
835 PL_restartop = 0; 1140 PL_restartop = 0;
836#if PERL_VERSION_ATLEAST (5,10,0) 1141#if PERL_VERSION_ATLEAST (5,10,0)
837 PL_parser = 0; 1142 PL_parser = 0;
838#endif 1143#endif
1144 PL_hints = 0;
839 1145
840 /* recreate the die/warn hooks */ 1146 /* recreate the die/warn hooks */
841 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1147 PL_diehook = SvREFCNT_inc (rv_diehook);
842 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1148 PL_warnhook = SvREFCNT_inc (rv_warnhook);
843 1149
844 GvSV (PL_defgv) = newSV (0); 1150 GvSV (PL_defgv) = newSV (0);
845 GvAV (PL_defgv) = coro->args; coro->args = 0; 1151 GvAV (PL_defgv) = coro->args; coro->args = 0;
846 GvSV (PL_errgv) = newSV (0); 1152 GvSV (PL_errgv) = newSV (0);
847 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
848 PL_rs = newSVsv (GvSV (irsgv)); 1158 PL_rs = newSVsv (GvSV (irsgv));
849 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1159 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
850 1160
851 { 1161 {
852 dSP; 1162 dSP;
853 UNOP myop; 1163 UNOP myop;
854 1164
855 Zero (&myop, 1, UNOP); 1165 Zero (&myop, 1, UNOP);
856 myop.op_next = Nullop; 1166 myop.op_next = Nullop;
1167 myop.op_type = OP_ENTERSUB;
857 myop.op_flags = OPf_WANT_VOID; 1168 myop.op_flags = OPf_WANT_VOID;
858 1169
859 PUSHMARK (SP); 1170 PUSHMARK (SP);
860 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 1171 PUSHs ((SV *)coro->startcv);
861 PUTBACK; 1172 PUTBACK;
862 PL_op = (OP *)&myop; 1173 PL_op = (OP *)&myop;
863 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1174 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
864 SPAGAIN;
865 } 1175 }
866 1176
867 /* 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
868 * 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.
869 */ 1179 */
870 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 */
871 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;
872 1183
873 coro_throw = coro->throw; 1184 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
874} 1185 init_perl_op.op_next = PL_op;
1186 init_perl_op.op_type = OP_ENTERSUB;
1187 init_perl_op.op_ppaddr = pp_slf;
1188 /* no flags etc. required, as an init function won't be called */
875 1189
1190 PL_op = (OP *)&init_perl_op;
1191
1192 /* copy throw, in case it was set before init_perl */
1193 CORO_THROW = coro->except;
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
876static void 1204static void
877coro_destruct (pTHX_ struct coro *coro) 1205coro_unwind_stacks (pTHX)
878{ 1206{
879 if (!IN_DESTRUCT) 1207 if (!IN_DESTRUCT)
880 { 1208 {
881 /* restore all saved variables and stuff */ 1209 /* restore all saved variables and stuff */
882 LEAVE_SCOPE (0); 1210 LEAVE_SCOPE (0);
… …
890 POPSTACK_TO (PL_mainstack); 1218 POPSTACK_TO (PL_mainstack);
891 1219
892 /* unwind main stack */ 1220 /* unwind main stack */
893 dounwind (-1); 1221 dounwind (-1);
894 } 1222 }
1223}
895 1224
896 SvREFCNT_dec (GvSV (PL_defgv)); 1225static void
897 SvREFCNT_dec (GvAV (PL_defgv)); 1226destroy_perl (pTHX_ struct coro *coro)
898 SvREFCNT_dec (GvSV (PL_errgv)); 1227{
899 SvREFCNT_dec (PL_defoutgv); 1228 SV *svf [9];
900 SvREFCNT_dec (PL_rs);
901 SvREFCNT_dec (GvSV (irsgv));
902 1229
903 SvREFCNT_dec (PL_diehook);
904 SvREFCNT_dec (PL_warnhook);
905 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
906 SvREFCNT_dec (coro->saved_deffh); 1273 SvREFCNT_dec (coro->saved_deffh);
907 SvREFCNT_dec (coro_throw); 1274 SvREFCNT_dec (coro->rouse_cb);
908 1275 SvREFCNT_dec (coro->invoke_cb);
909 coro_destruct_stacks (aTHX); 1276 SvREFCNT_dec (coro->invoke_av);
1277 }
910} 1278}
911 1279
912INLINE void 1280ecb_inline void
913free_coro_mortal (pTHX) 1281free_coro_mortal (pTHX)
914{ 1282{
915 if (expect_true (coro_mortal)) 1283 if (ecb_expect_true (coro_mortal))
916 { 1284 {
917 SvREFCNT_dec (coro_mortal); 1285 SvREFCNT_dec ((SV *)coro_mortal);
918 coro_mortal = 0; 1286 coro_mortal = 0;
919 } 1287 }
920} 1288}
921 1289
922static int 1290static int
923runops_trace (pTHX) 1291runops_trace (pTHX)
924{ 1292{
925 COP *oldcop = 0; 1293 COP *oldcop = 0;
926 int oldcxix = -2; 1294 int oldcxix = -2;
927 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
928 coro_cctx *cctx = coro->cctx;
929 1295
930 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1296 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
931 { 1297 {
932 PERL_ASYNC_CHECK (); 1298 PERL_ASYNC_CHECK ();
933 1299
934 if (cctx->flags & CC_TRACE_ALL) 1300 if (cctx_current->flags & CC_TRACE_ALL)
935 { 1301 {
936 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)
937 { 1303 {
938 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1304 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
939 SV **bot, **top; 1305 SV **bot, **top;
940 AV *av = newAV (); /* return values */ 1306 AV *av = newAV (); /* return values */
941 SV **cb; 1307 SV **cb;
… …
978 1344
979 if (PL_curcop != &PL_compiling) 1345 if (PL_curcop != &PL_compiling)
980 { 1346 {
981 SV **cb; 1347 SV **cb;
982 1348
983 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1349 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
984 { 1350 {
985 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1351 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986 1352
987 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1353 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
988 { 1354 {
989 runops_proc_t old_runops = PL_runops;
990 dSP; 1355 dSP;
991 GV *gv = CvGV (cx->blk_sub.cv); 1356 GV *gv = CvGV (cx->blk_sub.cv);
992 SV *fullname = sv_2mortal (newSV (0)); 1357 SV *fullname = sv_2mortal (newSV (0));
993 1358
994 if (isGV (gv)) 1359 if (isGV (gv))
… …
999 SAVETMPS; 1364 SAVETMPS;
1000 EXTEND (SP, 3); 1365 EXTEND (SP, 3);
1001 PUSHMARK (SP); 1366 PUSHMARK (SP);
1002 PUSHs (&PL_sv_yes); 1367 PUSHs (&PL_sv_yes);
1003 PUSHs (fullname); 1368 PUSHs (fullname);
1004 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1369 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1005 PUTBACK; 1370 PUTBACK;
1006 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1371 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1007 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1372 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1008 SPAGAIN; 1373 SPAGAIN;
1009 FREETMPS; 1374 FREETMPS;
… …
1012 } 1377 }
1013 1378
1014 oldcxix = cxstack_ix; 1379 oldcxix = cxstack_ix;
1015 } 1380 }
1016 1381
1017 if (cctx->flags & CC_TRACE_LINE) 1382 if (cctx_current->flags & CC_TRACE_LINE)
1018 { 1383 {
1019 dSP; 1384 dSP;
1020 1385
1021 PL_runops = RUNOPS_DEFAULT; 1386 PL_runops = RUNOPS_DEFAULT;
1022 ENTER; 1387 ENTER;
… …
1041 1406
1042 TAINT_NOT; 1407 TAINT_NOT;
1043 return 0; 1408 return 0;
1044} 1409}
1045 1410
1411static struct CoroSLF cctx_ssl_frame;
1412
1046static void 1413static void
1047prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) 1414slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1048{ 1415{
1049 ta->prev = (struct coro *)cctx;
1050 ta->next = 0; 1416 ta->prev = 0;
1051} 1417}
1052 1418
1053/* inject a fake call to Coro::State::_cctx_init into the execution */ 1419static int
1054/* _cctx_init should be careful, as it could be called at almost any time */ 1420slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1055/* during execution of a perl program */
1056/* also initialises PL_top_env */
1057static void NOINLINE
1058cctx_prepare (pTHX_ coro_cctx *cctx)
1059{ 1421{
1060 dSP; 1422 *frame = cctx_ssl_frame;
1061 UNOP myop;
1062 1423
1424 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1425}
1426
1427/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1428static void ecb_noinline
1429cctx_prepare (pTHX)
1430{
1063 PL_top_env = &PL_start_env; 1431 PL_top_env = &PL_start_env;
1064 1432
1065 if (cctx->flags & CC_TRACE) 1433 if (cctx_current->flags & CC_TRACE)
1066 PL_runops = runops_trace; 1434 PL_runops = runops_trace;
1067 1435
1068 Zero (&myop, 1, UNOP); 1436 /* we already must be executing an SLF op, there is no other valid way
1069 myop.op_next = PL_op; 1437 * that can lead to creation of a new cctx */
1070 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1438 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1439 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1071 1440
1072 PUSHMARK (SP); 1441 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1073 EXTEND (SP, 2); 1442 cctx_ssl_frame = slf_frame;
1074 PUSHs (sv_2mortal (newSViv ((IV)cctx))); 1443
1075 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1444 slf_frame.prepare = slf_prepare_set_stacklevel;
1076 PUTBACK; 1445 slf_frame.check = slf_check_set_stacklevel;
1077 PL_op = (OP *)&myop;
1078 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1079 SPAGAIN;
1080} 1446}
1081 1447
1082/* 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 */
1083INLINE void 1449ecb_inline void
1084transfer_tail (pTHX) 1450transfer_tail (pTHX)
1085{ 1451{
1086 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);
1087} 1465}
1088 1466
1089/* 1467/*
1090 * this is a _very_ stripped down perl interpreter ;) 1468 * this is a _very_ stripped down perl interpreter ;)
1091 */ 1469 */
… …
1103 /* normally we would need to skip the entersub here */ 1481 /* normally we would need to skip the entersub here */
1104 /* 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 */
1105 /* PL_nop = PL_nop->op_next */ 1483 /* PL_nop = PL_nop->op_next */
1106 1484
1107 /* inject a fake subroutine call to cctx_init */ 1485 /* inject a fake subroutine call to cctx_init */
1108 cctx_prepare (aTHX_ (coro_cctx *)arg); 1486 cctx_prepare (aTHX);
1109 1487
1110 /* cctx_run is the alternative tail of transfer() */ 1488 /* cctx_run is the alternative tail of transfer() */
1111 transfer_tail (aTHX); 1489 transfer_tail (aTHX);
1112 1490
1113 /* 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 */
1114 PL_restartop = PL_op; 1492 PL_restartop = PL_op;
1115 perl_run (PL_curinterp); 1493 perl_run (PL_curinterp);
1494 /*
1495 * Unfortunately, there is no way to get at the return values of the
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.
1498 */
1116 1499
1117 /* 1500 /*
1118 * 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
1119 * 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)
1120 * 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
1121 * bootstrap-time "top" top_env, as we cannot restore the "main" 1504 * doing in that case. YMMV.
1122 * coroutine as Coro has no such concept
1123 */ 1505 */
1124 PL_top_env = main_top_env; 1506 perlish_exit (aTHX);
1125 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1126 } 1507 }
1127} 1508}
1128 1509
1129static coro_cctx * 1510static coro_cctx *
1130cctx_new () 1511cctx_new (void)
1131{ 1512{
1132 coro_cctx *cctx; 1513 coro_cctx *cctx;
1133 1514
1134 ++cctx_count; 1515 ++cctx_count;
1135 New (0, cctx, 1, coro_cctx); 1516 New (0, cctx, 1, coro_cctx);
… …
1141 return cctx; 1522 return cctx;
1142} 1523}
1143 1524
1144/* create a new cctx only suitable as source */ 1525/* create a new cctx only suitable as source */
1145static coro_cctx * 1526static coro_cctx *
1146cctx_new_empty () 1527cctx_new_empty (void)
1147{ 1528{
1148 coro_cctx *cctx = cctx_new (); 1529 coro_cctx *cctx = cctx_new ();
1149 1530
1150 cctx->sptr = 0; 1531 cctx->stack.sptr = 0;
1151 coro_create (&cctx->cctx, 0, 0, 0, 0); 1532 coro_create (&cctx->cctx, 0, 0, 0, 0);
1152 1533
1153 return cctx; 1534 return cctx;
1154} 1535}
1155 1536
1156/* create a new cctx suitable as destination/running a perl interpreter */ 1537/* create a new cctx suitable as destination/running a perl interpreter */
1157static coro_cctx * 1538static coro_cctx *
1158cctx_new_run () 1539cctx_new_run (void)
1159{ 1540{
1160 coro_cctx *cctx = cctx_new (); 1541 coro_cctx *cctx = cctx_new ();
1161 void *stack_start;
1162 size_t stack_size;
1163 1542
1164#if HAVE_MMAP 1543 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1165 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1166 /* mmap supposedly does allocate-on-write for us */
1167 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1168
1169 if (cctx->sptr != (void *)-1)
1170 {
1171 #if CORO_STACKGUARD
1172 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1173 #endif
1174 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1175 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1176 cctx->flags |= CC_MAPPED;
1177 } 1544 {
1178 else
1179#endif
1180 {
1181 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1182 New (0, cctx->sptr, cctx_stacksize, long);
1183
1184 if (!cctx->sptr)
1185 {
1186 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1545 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1187 _exit (EXIT_FAILURE); 1546 _exit (EXIT_FAILURE);
1188 }
1189
1190 stack_start = cctx->sptr;
1191 stack_size = cctx->ssize;
1192 } 1547 }
1193 1548
1194 #if CORO_USE_VALGRIND
1195 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1196 #endif
1197
1198 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);
1199 1550
1200 return cctx; 1551 return cctx;
1201} 1552}
1202 1553
1203static void 1554static void
1204cctx_destroy (coro_cctx *cctx) 1555cctx_destroy (coro_cctx *cctx)
1205{ 1556{
1206 if (!cctx) 1557 if (!cctx)
1207 return; 1558 return;
1208 1559
1560 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1561
1209 --cctx_count; 1562 --cctx_count;
1210 coro_destroy (&cctx->cctx); 1563 coro_destroy (&cctx->cctx);
1211 1564
1212 /* coro_transfer creates new, empty cctx's */ 1565 coro_stack_free (&cctx->stack);
1213 if (cctx->sptr)
1214 {
1215 #if CORO_USE_VALGRIND
1216 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1217 #endif
1218
1219#if HAVE_MMAP
1220 if (cctx->flags & CC_MAPPED)
1221 munmap (cctx->sptr, cctx->ssize);
1222 else
1223#endif
1224 Safefree (cctx->sptr);
1225 }
1226 1566
1227 Safefree (cctx); 1567 Safefree (cctx);
1228} 1568}
1229 1569
1230/* wether this cctx should be destructed */ 1570/* wether this cctx should be destructed */
1231#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))
1232 1572
1233static coro_cctx * 1573static coro_cctx *
1234cctx_get (pTHX) 1574cctx_get (pTHX)
1235{ 1575{
1236 while (expect_true (cctx_first)) 1576 while (ecb_expect_true (cctx_first))
1237 { 1577 {
1238 coro_cctx *cctx = cctx_first; 1578 coro_cctx *cctx = cctx_first;
1239 cctx_first = cctx->next; 1579 cctx_first = cctx->next;
1240 --cctx_idle; 1580 --cctx_idle;
1241 1581
1242 if (expect_true (!CCTX_EXPIRED (cctx))) 1582 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1243 return cctx; 1583 return cctx;
1244 1584
1245 cctx_destroy (cctx); 1585 cctx_destroy (cctx);
1246 } 1586 }
1247 1587
… …
1249} 1589}
1250 1590
1251static void 1591static void
1252cctx_put (coro_cctx *cctx) 1592cctx_put (coro_cctx *cctx)
1253{ 1593{
1254 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));
1255 1595
1256 /* free another cctx if overlimit */ 1596 /* free another cctx if overlimit */
1257 if (expect_false (cctx_idle >= cctx_max_idle)) 1597 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1258 { 1598 {
1259 coro_cctx *first = cctx_first; 1599 coro_cctx *first = cctx_first;
1260 cctx_first = first->next; 1600 cctx_first = first->next;
1261 --cctx_idle; 1601 --cctx_idle;
1262 1602
… …
1273static void 1613static void
1274transfer_check (pTHX_ struct coro *prev, struct coro *next) 1614transfer_check (pTHX_ struct coro *prev, struct coro *next)
1275{ 1615{
1276 /* TODO: throwing up here is considered harmful */ 1616 /* TODO: throwing up here is considered harmful */
1277 1617
1278 if (expect_true (prev != next)) 1618 if (ecb_expect_true (prev != next))
1279 { 1619 {
1280 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1620 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1281 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,");
1282 1622
1283 if (expect_false (next->flags & CF_RUNNING)) 1623 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1284 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1285
1286 if (expect_false (next->flags & CF_DESTROYED))
1287 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,");
1288 1625
1289#if !PERL_VERSION_ATLEAST (5,10,0) 1626#if !PERL_VERSION_ATLEAST (5,10,0)
1290 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1627 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1291 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,");
1292#endif 1629#endif
1293 } 1630 }
1294} 1631}
1295 1632
1296/* always use the TRANSFER macro */ 1633/* always use the TRANSFER macro */
1297static void NOINLINE /* noinline so we have a fixed stackframe */ 1634static void ecb_noinline /* noinline so we have a fixed stackframe */
1298transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1635transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1299{ 1636{
1300 dSTACKLEVEL; 1637 dSTACKLEVEL;
1301 1638
1302 /* sometimes transfer is only called to set idle_sp */ 1639 /* sometimes transfer is only called to set idle_sp */
1303 if (expect_false (!next)) 1640 if (ecb_expect_false (!prev))
1304 { 1641 {
1305 ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; 1642 cctx_current->idle_sp = STACKLEVEL;
1306 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 */
1307 } 1644 }
1308 else if (expect_true (prev != next)) 1645 else if (ecb_expect_true (prev != next))
1309 { 1646 {
1310 coro_cctx *prev__cctx; 1647 coro_cctx *cctx_prev;
1311 1648
1312 if (expect_false (prev->flags & CF_NEW)) 1649 if (ecb_expect_false (prev->flags & CF_NEW))
1313 { 1650 {
1314 /* create a new empty/source context */ 1651 /* create a new empty/source context */
1315 prev->cctx = cctx_new_empty ();
1316 prev->flags &= ~CF_NEW; 1652 prev->flags &= ~CF_NEW;
1317 prev->flags |= CF_RUNNING; 1653 prev->flags |= CF_RUNNING;
1318 } 1654 }
1319 1655
1320 prev->flags &= ~CF_RUNNING; 1656 prev->flags &= ~CF_RUNNING;
1321 next->flags |= CF_RUNNING; 1657 next->flags |= CF_RUNNING;
1322 1658
1323 /* first get rid of the old state */ 1659 /* first get rid of the old state */
1324 save_perl (aTHX_ prev); 1660 save_perl (aTHX_ prev);
1325 1661
1326 if (expect_false (next->flags & CF_NEW)) 1662 if (ecb_expect_false (next->flags & CF_NEW))
1327 { 1663 {
1328 /* need to start coroutine */ 1664 /* need to start coroutine */
1329 next->flags &= ~CF_NEW; 1665 next->flags &= ~CF_NEW;
1330 /* setup coroutine call */ 1666 /* setup coroutine call */
1331 coro_setup (aTHX_ next); 1667 init_perl (aTHX_ next);
1332 } 1668 }
1333 else 1669 else
1334 load_perl (aTHX_ next); 1670 load_perl (aTHX_ next);
1335 1671
1336 prev__cctx = prev->cctx;
1337
1338 /* possibly untie and reuse the cctx */ 1672 /* possibly untie and reuse the cctx */
1339 if (expect_true ( 1673 if (ecb_expect_true (
1340 prev__cctx->idle_sp == (void *)stacklevel 1674 cctx_current->idle_sp == STACKLEVEL
1341 && !(prev__cctx->flags & CC_TRACE) 1675 && !(cctx_current->flags & CC_TRACE)
1342 && !force_cctx 1676 && !force_cctx
1343 )) 1677 ))
1344 { 1678 {
1345 /* 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 */
1346 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));
1347 1681
1348 prev->cctx = 0;
1349
1350 /* 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. */
1351 /* 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 */
1352 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1684 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1353 if (!next->cctx) 1685 if (ecb_expect_true (!next->cctx))
1354 next->cctx = cctx_get (aTHX); 1686 next->cctx = cctx_get (aTHX);
1355 1687
1356 cctx_put (prev__cctx); 1688 cctx_put (cctx_current);
1357 } 1689 }
1690 else
1691 prev->cctx = cctx_current;
1358 1692
1359 ++next->usecount; 1693 ++next->usecount;
1360 1694
1361 if (expect_true (!next->cctx)) 1695 cctx_prev = cctx_current;
1362 next->cctx = cctx_get (aTHX); 1696 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1363 1697
1364 if (expect_false (prev__cctx != next->cctx)) 1698 next->cctx = 0;
1699
1700 if (ecb_expect_false (cctx_prev != cctx_current))
1365 { 1701 {
1366 prev__cctx->top_env = PL_top_env; 1702 cctx_prev->top_env = PL_top_env;
1367 PL_top_env = next->cctx->top_env; 1703 PL_top_env = cctx_current->top_env;
1368 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1704 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1369 } 1705 }
1370 1706
1371 transfer_tail (aTHX); 1707 transfer_tail (aTHX);
1372 } 1708 }
1373} 1709}
… …
1375#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))
1376#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1712#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1377 1713
1378/** high level stuff ********************************************************/ 1714/** high level stuff ********************************************************/
1379 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 */
1380static int 1718static void
1719coro_call_on_destroy (pTHX_ struct coro *coro);
1720
1721static void
1381coro_state_destroy (pTHX_ struct coro *coro) 1722coro_state_destroy (pTHX_ struct coro *coro)
1382{ 1723{
1383 if (coro->flags & CF_DESTROYED) 1724 if (coro->flags & CF_ZOMBIE)
1384 return 0; 1725 return;
1385 1726
1386 if (coro->on_destroy)
1387 coro->on_destroy (aTHX_ coro); 1727 slf_destroy (aTHX_ coro);
1388 1728
1389 coro->flags |= CF_DESTROYED; 1729 coro->flags |= CF_ZOMBIE;
1390 1730
1391 if (coro->flags & CF_READY) 1731 if (coro->flags & CF_READY)
1392 { 1732 {
1393 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1733 /* reduce nready, as destroying a ready coro effectively unreadies it */
1394 /* alternative: look through all ready queues and remove the coro */ 1734 /* alternative: look through all ready queues and remove the coro */
1395 --coro_nready; 1735 --coro_nready;
1396 } 1736 }
1397 else 1737 else
1398 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 */
1399 1739
1400 if (coro->mainstack && coro->mainstack != main_mainstack)
1401 {
1402 struct coro temp;
1403
1404 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1405
1406 save_perl (aTHX_ &temp);
1407 load_perl (aTHX_ coro);
1408
1409 coro_destruct (aTHX_ coro);
1410
1411 load_perl (aTHX_ &temp);
1412
1413 coro->slot = 0;
1414 }
1415
1416 cctx_destroy (coro->cctx);
1417 SvREFCNT_dec (coro->args);
1418
1419 if (coro->next) coro->next->prev = coro->prev; 1740 if (coro->next) coro->next->prev = coro->prev;
1420 if (coro->prev) coro->prev->next = coro->next; 1741 if (coro->prev) coro->prev->next = coro->next;
1421 if (coro == coro_first) coro_first = coro->next; 1742 if (coro == coro_first) coro_first = coro->next;
1422 1743
1423 return 1; 1744 if (coro->mainstack
1745 && coro->mainstack != main_mainstack
1746 && coro->slot
1747 && !PL_dirty)
1748 destroy_perl (aTHX_ coro);
1749
1750 cctx_destroy (coro->cctx);
1751 SvREFCNT_dec (coro->startcv);
1752 SvREFCNT_dec (coro->args);
1753 SvREFCNT_dec (coro->swap_sv);
1754 SvREFCNT_dec (CORO_THROW);
1755
1756 coro_call_on_destroy (aTHX_ coro);
1757
1758 /* more destruction mayhem in coro_state_free */
1424} 1759}
1425 1760
1426static int 1761static int
1427coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1762coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1428{ 1763{
1429 struct coro *coro = (struct coro *)mg->mg_ptr; 1764 struct coro *coro = (struct coro *)mg->mg_ptr;
1430 mg->mg_ptr = 0; 1765 mg->mg_ptr = 0;
1431 1766
1432 coro->hv = 0;
1433
1434 if (--coro->refcnt < 0)
1435 {
1436 coro_state_destroy (aTHX_ coro); 1767 coro_state_destroy (aTHX_ coro);
1768 SvREFCNT_dec (coro->on_destroy);
1769 SvREFCNT_dec (coro->status);
1770
1437 Safefree (coro); 1771 Safefree (coro);
1438 }
1439 1772
1440 return 0; 1773 return 0;
1441} 1774}
1442 1775
1443static int 1776static int ecb_cold
1444coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1777coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1445{ 1778{
1446 struct coro *coro = (struct coro *)mg->mg_ptr; 1779 /* called when perl clones the current process the slow way (windows process emulation) */
1447 1780 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1448 ++coro->refcnt; 1781 mg->mg_ptr = 0;
1782 mg->mg_virtual = 0;
1449 1783
1450 return 0; 1784 return 0;
1451} 1785}
1452 1786
1453static MGVTBL coro_state_vtbl = { 1787static MGVTBL coro_state_vtbl = {
… …
1478 TRANSFER (ta, 1); 1812 TRANSFER (ta, 1);
1479} 1813}
1480 1814
1481/** Coro ********************************************************************/ 1815/** Coro ********************************************************************/
1482 1816
1483INLINE void 1817ecb_inline void
1484coro_enq (pTHX_ struct coro *coro) 1818coro_enq (pTHX_ struct coro *coro)
1485{ 1819{
1486 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1820 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1487}
1488 1821
1489INLINE 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 *
1490coro_deq (pTHX) 1830coro_deq (pTHX)
1491{ 1831{
1492 int prio; 1832 int prio;
1493 1833
1494 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1834 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1495 if (AvFILLp (coro_ready [prio]) >= 0) 1835 {
1496 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 }
1497 1845
1498 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;
1499} 1864}
1500 1865
1501static int 1866static int
1502api_ready (pTHX_ SV *coro_sv) 1867api_ready (pTHX_ SV *coro_sv)
1503{ 1868{
1504 struct coro *coro;
1505 SV *sv_hook;
1506 void (*xs_hook)(void);
1507
1508 if (SvROK (coro_sv))
1509 coro_sv = SvRV (coro_sv);
1510
1511 coro = SvSTATE (coro_sv); 1869 struct coro *coro = SvSTATE (coro_sv);
1512 1870
1513 if (coro->flags & CF_READY) 1871 if (coro->flags & CF_READY)
1514 return 0; 1872 return 0;
1515 1873
1516 coro->flags |= CF_READY; 1874 coro->flags |= CF_READY;
1517 1875
1518 sv_hook = coro_nready ? 0 : coro_readyhook;
1519 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1520
1521 coro_enq (aTHX_ coro); 1876 coro_enq (aTHX_ coro);
1522 ++coro_nready;
1523 1877
1524 if (sv_hook) 1878 if (!coro_nready++)
1525 { 1879 if (coroapi.readyhook)
1526 dSP; 1880 coroapi.readyhook ();
1527
1528 ENTER;
1529 SAVETMPS;
1530
1531 PUSHMARK (SP);
1532 PUTBACK;
1533 call_sv (sv_hook, G_DISCARD);
1534 SPAGAIN;
1535
1536 FREETMPS;
1537 LEAVE;
1538 }
1539
1540 if (xs_hook)
1541 xs_hook ();
1542 1881
1543 return 1; 1882 return 1;
1544} 1883}
1545 1884
1546static int 1885static int
1547api_is_ready (pTHX_ SV *coro_sv) 1886api_is_ready (pTHX_ SV *coro_sv)
1548{ 1887{
1549 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1888 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1550} 1889}
1551 1890
1552INLINE void 1891/* expects to own a reference to next->hv */
1892ecb_inline void
1553prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1893prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1554{ 1894{
1555 SV *prev_sv, *next_sv;
1556
1557 for (;;)
1558 {
1559 next_sv = coro_deq (aTHX);
1560
1561 /* nothing to schedule: call the idle handler */
1562 if (expect_false (!next_sv))
1563 {
1564 dSP;
1565
1566 ENTER;
1567 SAVETMPS;
1568
1569 PUSHMARK (SP);
1570 PUTBACK;
1571 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1572 SPAGAIN;
1573
1574 FREETMPS;
1575 LEAVE;
1576 continue;
1577 }
1578
1579 ta->next = SvSTATE_hv (next_sv);
1580
1581 /* cannot transfer to destroyed coros, skip and look for next */
1582 if (expect_false (ta->next->flags & CF_DESTROYED))
1583 {
1584 SvREFCNT_dec (next_sv);
1585 /* coro_nready has already been taken care of by destroy */
1586 continue;
1587 }
1588
1589 --coro_nready;
1590 break;
1591 }
1592
1593 /* free this only after the transfer */
1594 prev_sv = SvRV (coro_current); 1895 SV *prev_sv = SvRV (coro_current);
1896
1595 ta->prev = SvSTATE_hv (prev_sv); 1897 ta->prev = SvSTATE_hv (prev_sv);
1898 ta->next = next;
1899
1596 TRANSFER_CHECK (*ta); 1900 TRANSFER_CHECK (*ta);
1597 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1901
1598 ta->next->flags &= ~CF_READY;
1599 SvRV_set (coro_current, next_sv); 1902 SvRV_set (coro_current, (SV *)next->hv);
1600 1903
1601 free_coro_mortal (aTHX); 1904 free_coro_mortal (aTHX);
1602 coro_mortal = prev_sv; 1905 coro_mortal = prev_sv;
1603} 1906}
1604 1907
1605INLINE 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
1606prepare_cede (pTHX_ struct coro_transfer_args *ta) 1979prepare_cede (pTHX_ struct coro_transfer_args *ta)
1607{ 1980{
1608 api_ready (aTHX_ coro_current); 1981 api_ready (aTHX_ coro_current);
1609 prepare_schedule (aTHX_ ta); 1982 prepare_schedule (aTHX_ ta);
1610} 1983}
1611 1984
1612INLINE void 1985ecb_inline void
1613prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1986prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1614{ 1987{
1615 SV *prev = SvRV (coro_current); 1988 SV *prev = SvRV (coro_current);
1616 1989
1617 if (coro_nready) 1990 if (coro_nready)
… …
1630 2003
1631 prepare_schedule (aTHX_ &ta); 2004 prepare_schedule (aTHX_ &ta);
1632 TRANSFER (ta, 1); 2005 TRANSFER (ta, 1);
1633} 2006}
1634 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
1635static int 2018static int
1636api_cede (pTHX) 2019api_cede (pTHX)
1637{ 2020{
1638 struct coro_transfer_args ta; 2021 struct coro_transfer_args ta;
1639 2022
1640 prepare_cede (aTHX_ &ta); 2023 prepare_cede (aTHX_ &ta);
1641 2024
1642 if (expect_true (ta.prev != ta.next)) 2025 if (ecb_expect_true (ta.prev != ta.next))
1643 { 2026 {
1644 TRANSFER (ta, 1); 2027 TRANSFER (ta, 1);
1645 return 1; 2028 return 1;
1646 } 2029 }
1647 else 2030 else
… …
1666static void 2049static void
1667api_trace (pTHX_ SV *coro_sv, int flags) 2050api_trace (pTHX_ SV *coro_sv, int flags)
1668{ 2051{
1669 struct coro *coro = SvSTATE (coro_sv); 2052 struct coro *coro = SvSTATE (coro_sv);
1670 2053
2054 if (coro->flags & CF_RUNNING)
2055 croak ("cannot enable tracing on a running coroutine, caught");
2056
1671 if (flags & CC_TRACE) 2057 if (flags & CC_TRACE)
1672 { 2058 {
1673 if (!coro->cctx) 2059 if (!coro->cctx)
1674 coro->cctx = cctx_new_run (); 2060 coro->cctx = cctx_new_run ();
1675 else if (!(coro->cctx->flags & CC_TRACE)) 2061 else if (!(coro->cctx->flags & CC_TRACE))
1676 croak ("cannot enable tracing on coroutine with custom stack,"); 2062 croak ("cannot enable tracing on coroutine with custom stack, caught");
1677 2063
1678 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2064 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1679 } 2065 }
1680 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2066 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1681 { 2067 {
… …
1684 if (coro->flags & CF_RUNNING) 2070 if (coro->flags & CF_RUNNING)
1685 PL_runops = RUNOPS_DEFAULT; 2071 PL_runops = RUNOPS_DEFAULT;
1686 else 2072 else
1687 coro->slot->runops = RUNOPS_DEFAULT; 2073 coro->slot->runops = RUNOPS_DEFAULT;
1688 } 2074 }
2075}
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
2334/*****************************************************************************/
2335/* async pool handler */
2336
2337static int
2338slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2339{
2340 HV *hv = (HV *)SvRV (coro_current);
2341 struct coro *coro = (struct coro *)frame->data;
2342
2343 if (!coro->invoke_cb)
2344 return 1; /* loop till we have invoke */
2345 else
2346 {
2347 hv_store (hv, "desc", sizeof ("desc") - 1,
2348 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2349
2350 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2351
2352 {
2353 dSP;
2354 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2355 PUTBACK;
2356 }
2357
2358 SvREFCNT_dec (GvAV (PL_defgv));
2359 GvAV (PL_defgv) = coro->invoke_av;
2360 coro->invoke_av = 0;
2361
2362 return 0;
2363 }
2364}
2365
2366static void
2367slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2368{
2369 HV *hv = (HV *)SvRV (coro_current);
2370 struct coro *coro = SvSTATE_hv ((SV *)hv);
2371
2372 if (ecb_expect_true (coro->saved_deffh))
2373 {
2374 /* subsequent iteration */
2375 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2376 coro->saved_deffh = 0;
2377
2378 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2379 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2380 {
2381 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2382 return;
2383 }
2384 else
2385 {
2386 av_clear (GvAV (PL_defgv));
2387 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2388
2389 coro->prio = 0;
2390
2391 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2392 api_trace (aTHX_ coro_current, 0);
2393
2394 frame->prepare = prepare_schedule;
2395 av_push (av_async_pool, SvREFCNT_inc (hv));
2396 }
2397 }
2398 else
2399 {
2400 /* first iteration, simply fall through */
2401 frame->prepare = prepare_nop;
2402 }
2403
2404 frame->check = slf_check_pool_handler;
2405 frame->data = (void *)coro;
2406}
2407
2408/*****************************************************************************/
2409/* rouse callback */
2410
2411#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
2412
2413static void
2414coro_rouse_callback (pTHX_ CV *cv)
2415{
2416 dXSARGS;
2417 SV *data = (SV *)S_GENSUB_ARG;
2418
2419 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2420 {
2421 /* first call, set args */
2422 SV *coro = SvRV (data);
2423 AV *av = newAV ();
2424
2425 SvRV_set (data, (SV *)av);
2426
2427 /* better take a full copy of the arguments */
2428 while (items--)
2429 av_store (av, items, newSVsv (ST (items)));
2430
2431 api_ready (aTHX_ coro);
2432 SvREFCNT_dec (coro);
2433 }
2434
2435 XSRETURN_EMPTY;
2436}
2437
2438static int
2439slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2440{
2441 SV *data = (SV *)frame->data;
2442
2443 if (CORO_THROW)
2444 return 0;
2445
2446 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2447 return 1;
2448
2449 /* now push all results on the stack */
2450 {
2451 dSP;
2452 AV *av = (AV *)SvRV (data);
2453 int i;
2454
2455 EXTEND (SP, AvFILLp (av) + 1);
2456 for (i = 0; i <= AvFILLp (av); ++i)
2457 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2458
2459 /* we have stolen the elements, so set length to zero and free */
2460 AvFILLp (av) = -1;
2461 av_undef (av);
2462
2463 PUTBACK;
2464 }
2465
2466 return 0;
2467}
2468
2469static void
2470slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2471{
2472 SV *cb;
2473
2474 if (items)
2475 cb = arg [0];
2476 else
2477 {
2478 struct coro *coro = SvSTATE_current;
2479
2480 if (!coro->rouse_cb)
2481 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2482
2483 cb = sv_2mortal (coro->rouse_cb);
2484 coro->rouse_cb = 0;
2485 }
2486
2487 if (!SvROK (cb)
2488 || SvTYPE (SvRV (cb)) != SVt_PVCV
2489 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2490 croak ("Coro::rouse_wait called with illegal callback argument,");
2491
2492 {
2493 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2494 SV *data = (SV *)S_GENSUB_ARG;
2495
2496 frame->data = (void *)data;
2497 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2498 frame->check = slf_check_rouse_wait;
2499 }
2500}
2501
2502static SV *
2503coro_new_rouse_cb (pTHX)
2504{
2505 HV *hv = (HV *)SvRV (coro_current);
2506 struct coro *coro = SvSTATE_hv (hv);
2507 SV *data = newRV_inc ((SV *)hv);
2508 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2509
2510 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2511 SvREFCNT_dec (data); /* magicext increases the refcount */
2512
2513 SvREFCNT_dec (coro->rouse_cb);
2514 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2515
2516 return cb;
1689} 2517}
1690 2518
1691/*****************************************************************************/ 2519/*****************************************************************************/
1692/* schedule-like-function opcode (SLF) */ 2520/* schedule-like-function opcode (SLF) */
1693 2521
… …
1717 2545
1718 RETURNOP (slf_restore.op_first); 2546 RETURNOP (slf_restore.op_first);
1719} 2547}
1720 2548
1721static void 2549static void
1722slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1723{
1724 prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1725}
1726
1727static void
1728slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1729{
1730 assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1731
1732 frame->prepare = slf_prepare_set_stacklevel;
1733 frame->check = slf_check_nop;
1734 frame->data = (void *)SvIV (arg [0]);
1735}
1736
1737static void
1738slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) 2550slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1739{ 2551{
1740 SV **arg = (SV **)slf_frame.data; 2552 SV **arg = (SV **)slf_frame.data;
1741 2553
1742 prepare_transfer (aTHX_ ta, arg [0], arg [1]); 2554 prepare_transfer (aTHX_ ta, arg [0], arg [1]);
… …
1759 frame->prepare = prepare_schedule; 2571 frame->prepare = prepare_schedule;
1760 frame->check = slf_check_nop; 2572 frame->check = slf_check_nop;
1761} 2573}
1762 2574
1763static 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
1764slf_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)
1765{ 2605{
1766 frame->prepare = prepare_cede; 2606 frame->prepare = prepare_cede;
1767 frame->check = slf_check_nop; 2607 frame->check = slf_check_nop;
1768} 2608}
… …
1772{ 2612{
1773 frame->prepare = prepare_cede_notself; 2613 frame->prepare = prepare_cede_notself;
1774 frame->check = slf_check_nop; 2614 frame->check = slf_check_nop;
1775} 2615}
1776 2616
1777/* we hijack an hopefully unused CV flag for our purposes */ 2617/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
1778#define CVf_SLF 0x4000 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);
2634}
1779 2635
1780/* 2636/*
1781 * these not obviously related functions are all rolled into one 2637 * these not obviously related functions are all rolled into one
1782 * 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
1783 * stack offset 2639 * stack offset
… …
1789 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 */
1790 2646
1791 /* 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 */
1792 /* the latter happens when a new coro has been started */ 2648 /* the latter happens when a new coro has been started */
1793 /* or when a new cctx was attached to an existing coroutine */ 2649 /* or when a new cctx was attached to an existing coroutine */
1794 if (expect_true (!slf_frame.prepare)) 2650 if (ecb_expect_true (!slf_frame.prepare))
1795 { 2651 {
1796 /* first iteration */ 2652 /* first iteration */
1797 dSP; 2653 dSP;
1798 SV **arg = PL_stack_base + TOPMARK + 1; 2654 SV **arg = PL_stack_base + TOPMARK + 1;
1799 int items = SP - arg; /* args without function object */ 2655 int items = SP - arg; /* args without function object */
… …
1839 } 2695 }
1840 while (slf_frame.check (aTHX_ &slf_frame)); 2696 while (slf_frame.check (aTHX_ &slf_frame));
1841 2697
1842 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 */
1843 2699
1844 /* return value handling - mostly like entersub */
1845 {
1846 dSP;
1847 SV **bot = PL_stack_base + checkmark;
1848 int gimme = GIMME_V;
1849
1850 /* make sure we put something on the stack in scalar context */
1851 if (gimme == G_SCALAR)
1852 {
1853 if (sp == bot)
1854 XPUSHs (&PL_sv_undef);
1855
1856 SP = bot + 1;
1857 }
1858
1859 PUTBACK;
1860 }
1861
1862 /* exception handling */ 2700 /* exception handling */
1863 if (expect_false (coro_throw)) 2701 if (ecb_expect_false (CORO_THROW))
1864 { 2702 {
1865 SV *exception = sv_2mortal (coro_throw); 2703 SV *exception = sv_2mortal (CORO_THROW);
1866 2704
1867 coro_throw = 0; 2705 CORO_THROW = 0;
1868 sv_setsv (ERRSV, exception); 2706 sv_setsv (ERRSV, exception);
1869 croak (0); 2707 croak (0);
2708 }
2709
2710 /* return value handling - mostly like entersub */
2711 /* make sure we put something on the stack in scalar context */
2712 if (GIMME_V == G_SCALAR
2713 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2714 {
2715 dSP;
2716 SV **bot = PL_stack_base + checkmark;
2717
2718 if (sp == bot) /* too few, push undef */
2719 bot [1] = &PL_sv_undef;
2720 else /* too many, take last one */
2721 bot [1] = *sp;
2722
2723 SP = bot + 1;
2724
2725 PUTBACK;
1870 } 2726 }
1871 2727
1872 return NORMAL; 2728 return NORMAL;
1873} 2729}
1874 2730
… …
1902 if (PL_op->op_flags & OPf_STACKED) 2758 if (PL_op->op_flags & OPf_STACKED)
1903 { 2759 {
1904 if (items > slf_arga) 2760 if (items > slf_arga)
1905 { 2761 {
1906 slf_arga = items; 2762 slf_arga = items;
1907 free (slf_argv); 2763 Safefree (slf_argv);
1908 slf_argv = malloc (slf_arga * sizeof (SV *)); 2764 New (0, slf_argv, slf_arga, SV *);
1909 } 2765 }
1910 2766
1911 slf_argc = items; 2767 slf_argc = items;
1912 2768
1913 for (i = 0; i < items; ++i) 2769 for (i = 0; i < items; ++i)
… …
1915 } 2771 }
1916 else 2772 else
1917 slf_argc = 0; 2773 slf_argc = 0;
1918 2774
1919 PL_op->op_ppaddr = pp_slf; 2775 PL_op->op_ppaddr = pp_slf;
1920 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 */
1921 2777
1922 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));
1923} 2826}
1924 2827
1925/*****************************************************************************/ 2828/*****************************************************************************/
1926/* PerlIO::cede */ 2829/* PerlIO::cede */
1927 2830
… …
1929{ 2832{
1930 PerlIOBuf base; 2833 PerlIOBuf base;
1931 NV next, every; 2834 NV next, every;
1932} PerlIOCede; 2835} PerlIOCede;
1933 2836
1934static IV 2837static IV ecb_cold
1935PerlIOCede_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)
1936{ 2839{
1937 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2840 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1938 2841
1939 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2842 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
1940 self->next = nvtime () + self->every; 2843 self->next = nvtime () + self->every;
1941 2844
1942 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2845 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
1943} 2846}
1944 2847
1945static SV * 2848static SV * ecb_cold
1946PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2849PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
1947{ 2850{
1948 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2851 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1949 2852
1950 return newSVnv (self->every); 2853 return newSVnv (self->every);
… …
1996 PerlIOBuf_get_cnt, 2899 PerlIOBuf_get_cnt,
1997 PerlIOBuf_set_ptrcnt, 2900 PerlIOBuf_set_ptrcnt,
1998}; 2901};
1999 2902
2000/*****************************************************************************/ 2903/*****************************************************************************/
2904/* Coro::Semaphore & Coro::Signal */
2905
2906static SV *
2907coro_waitarray_new (pTHX_ int count)
2908{
2909 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2910 AV *av = newAV ();
2911 SV **ary;
2912
2913 /* unfortunately, building manually saves memory */
2914 Newx (ary, 2, SV *);
2915 AvALLOC (av) = ary;
2916#if PERL_VERSION_ATLEAST (5,10,0)
2917 AvARRAY (av) = ary;
2918#else
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
2923 AvMAX (av) = 1;
2924 AvFILLp (av) = 0;
2925 ary [0] = newSViv (count);
2926
2927 return newRV_noinc ((SV *)av);
2928}
2929
2001/* Coro::Semaphore */ 2930/* semaphore */
2002 2931
2003static void 2932static void
2004coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2933coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2005{ 2934{
2006 SV *count_sv = AvARRAY (av)[0]; 2935 SV *count_sv = AvARRAY (av)[0];
… …
2018 AvARRAY (av)[0] = AvARRAY (av)[1]; 2947 AvARRAY (av)[0] = AvARRAY (av)[1];
2019 AvARRAY (av)[1] = count_sv; 2948 AvARRAY (av)[1] = count_sv;
2020 cb = av_shift (av); 2949 cb = av_shift (av);
2021 2950
2022 if (SvOBJECT (cb)) 2951 if (SvOBJECT (cb))
2952 {
2023 api_ready (aTHX_ cb); 2953 api_ready (aTHX_ cb);
2024 else 2954 --count;
2025 croak ("callbacks not yet supported"); 2955 }
2956 else if (SvTYPE (cb) == SVt_PVCV)
2957 {
2958 dSP;
2959 PUSHMARK (SP);
2960 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2961 PUTBACK;
2962 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2963 }
2026 2964
2027 SvREFCNT_dec (cb); 2965 SvREFCNT_dec (cb);
2028
2029 --count;
2030 } 2966 }
2031} 2967}
2032 2968
2033static void 2969static void
2034coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2970coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2035{ 2971{
2036 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2972 /* call $sem->adjust (0) to possibly wake up some other waiters */
2037 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2973 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2038} 2974}
2039 2975
2040static int 2976static int
2041slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2977slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2042{ 2978{
2043 AV *av = (AV *)frame->data; 2979 AV *av = (AV *)frame->data;
2044 SV *count_sv = AvARRAY (av)[0]; 2980 SV *count_sv = AvARRAY (av)[0];
2981 SV *coro_hv = SvRV (coro_current);
2045 2982
2983 frame->destroy = 0;
2984
2985 /* if we are about to throw, don't actually acquire the lock, just 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
2991 return 0;
2992 }
2046 if (SvIVX (count_sv) > 0) 2993 else if (SvIVX (count_sv) > 0)
2047 { 2994 {
2048 SvSTATE_current->on_destroy = 0; 2995 if (acquire)
2049 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2996 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2997 else
2998 coro_semaphore_adjust (aTHX_ av, 0);
2999
2050 return 0; 3000 return 0;
2051 } 3001 }
2052 else 3002 else
2053 { 3003 {
2054 int i; 3004 int i;
2055 /* 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 */
2056 /* 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 */
2057 /* this avoids some degenerate memory usage cases */ 3007 /* this avoids some degenerate memory usage cases */
2058 3008 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2059 for (i = 1; i <= AvFILLp (av); ++i)
2060 if (AvARRAY (av)[i] == SvRV (coro_current)) 3009 if (AvARRAY (av)[i] == coro_hv)
2061 return 1; 3010 return 1;
2062 3011
2063 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3012 av_push (av, SvREFCNT_inc (coro_hv));
2064 return 1; 3013 return 1;
2065 } 3014 }
2066} 3015}
2067 3016
2068static void 3017static int
3018slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
3019{
3020 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
3021}
3022
3023static int
3024slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
3025{
3026 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
3027}
3028
3029static void
2069slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3030slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2070{ 3031{
2071 AV *av = (AV *)SvRV (arg [0]); 3032 AV *av = (AV *)SvRV (arg [0]);
2072 3033
2073 if (SvIVX (AvARRAY (av)[0]) > 0) 3034 if (SvIVX (AvARRAY (av)[0]) > 0)
2074 { 3035 {
2075 frame->data = (void *)av; 3036 frame->data = (void *)av;
2076 frame->prepare = prepare_nop; 3037 frame->prepare = prepare_nop;
2077 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2078 } 3038 }
2079 else 3039 else
2080 { 3040 {
2081 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3041 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2082 3042
2083 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3043 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2084 frame->prepare = prepare_schedule; 3044 frame->prepare = prepare_schedule;
2085
2086 /* to avoid race conditions when a woken-up coro gets terminated */ 3045 /* to avoid race conditions when a woken-up coro gets terminated */
2087 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3046 /* we arrange for a temporary on_destroy that calls adjust (0) */
2088 assert (!SvSTATE_current->on_destroy);//D
2089 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3047 frame->destroy = coro_semaphore_destroy;
2090 } 3048 }
3049}
2091 3050
3051static void
3052slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
3053{
3054 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092 frame->check = slf_check_semaphore_down; 3055 frame->check = slf_check_semaphore_down;
2093
2094} 3056}
2095 3057
2096/*****************************************************************************/ 3058static void
2097/* gensub: simple closure generation utility */ 3059slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2098
2099#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2100
2101/* create a closure from XS, returns a code reference */
2102/* the arg can be accessed via GENSUB_ARG from the callback */
2103/* the callback must use dXSARGS/XSRETURN */
2104static SV *
2105gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2106{ 3060{
2107 CV *cv = (CV *)newSV (0); 3061 if (items >= 2)
3062 {
3063 /* callback form */
3064 AV *av = (AV *)SvRV (arg [0]);
3065 SV *cb_cv = s_get_cv_croak (arg [1]);
2108 3066
2109 sv_upgrade ((SV *)cv, SVt_PVCV); 3067 av_push (av, SvREFCNT_inc_NN (cb_cv));
2110 3068
2111 CvANON_on (cv); 3069 if (SvIVX (AvARRAY (av)[0]) > 0)
2112 CvISXSUB_on (cv); 3070 coro_semaphore_adjust (aTHX_ av, 0);
2113 CvXSUB (cv) = xsub;
2114 GENSUB_ARG = arg;
2115 3071
2116 return newRV_noinc ((SV *)cv); 3072 frame->prepare = prepare_nop;
3073 frame->check = slf_check_nop;
3074 }
3075 else
3076 {
3077 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
3078 frame->check = slf_check_semaphore_wait;
3079 }
3080}
3081
3082/* signal */
3083
3084static void
3085coro_signal_wake (pTHX_ AV *av, int count)
3086{
3087 SvIVX (AvARRAY (av)[0]) = 0;
3088
3089 /* now signal count waiters */
3090 while (count > 0 && AvFILLp (av) > 0)
3091 {
3092 SV *cb;
3093
3094 /* swap first two elements so we can shift a waiter */
3095 cb = AvARRAY (av)[0];
3096 AvARRAY (av)[0] = AvARRAY (av)[1];
3097 AvARRAY (av)[1] = cb;
3098
3099 cb = av_shift (av);
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 {
3111 api_ready (aTHX_ cb);
3112 sv_setiv (cb, 0); /* signal waiter */
3113 }
3114
3115 SvREFCNT_dec (cb);
3116
3117 --count;
3118 }
3119}
3120
3121static int
3122slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
3123{
3124 /* if we are about to throw, also stop waiting */
3125 return SvROK ((SV *)frame->data) && !CORO_THROW;
3126}
3127
3128static void
3129slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
3130{
3131 AV *av = (AV *)SvRV (arg [0]);
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
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]))
3145 {
3146 SvIVX (AvARRAY (av)[0]) = 0;
3147 frame->prepare = prepare_nop;
3148 frame->check = slf_check_nop;
3149 }
3150 else
3151 {
3152 SV *waiter = newSVsv (coro_current); /* owned by signal av */
3153
3154 av_push (av, waiter);
3155
3156 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
3157 frame->prepare = prepare_schedule;
3158 frame->check = slf_check_signal_wait;
3159 }
2117} 3160}
2118 3161
2119/*****************************************************************************/ 3162/*****************************************************************************/
2120/* Coro::AIO */ 3163/* Coro::AIO */
2121 3164
… …
2132 3175
2133static void 3176static void
2134coro_aio_callback (pTHX_ CV *cv) 3177coro_aio_callback (pTHX_ CV *cv)
2135{ 3178{
2136 dXSARGS; 3179 dXSARGS;
2137 AV *state = (AV *)GENSUB_ARG; 3180 AV *state = (AV *)S_GENSUB_ARG;
2138 SV *coro = av_pop (state); 3181 SV *coro = av_pop (state);
2139 SV *data_sv = newSV (sizeof (struct io_state)); 3182 SV *data_sv = newSV (sizeof (struct io_state));
2140 3183
2141 av_extend (state, items); 3184 av_extend (state, items - 1);
2142 3185
2143 sv_upgrade (data_sv, SVt_PV); 3186 sv_upgrade (data_sv, SVt_PV);
2144 SvCUR_set (data_sv, sizeof (struct io_state)); 3187 SvCUR_set (data_sv, sizeof (struct io_state));
2145 SvPOK_only (data_sv); 3188 SvPOK_only (data_sv);
2146 3189
… …
2171static int 3214static int
2172slf_check_aio_req (pTHX_ struct CoroSLF *frame) 3215slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2173{ 3216{
2174 AV *state = (AV *)frame->data; 3217 AV *state = (AV *)frame->data;
2175 3218
3219 /* if we are about to throw, return early */
3220 /* this does not cancel the aio request, but at least */
3221 /* it quickly returns */
3222 if (CORO_THROW)
3223 return 0;
3224
2176 /* one element that is an RV? repeat! */ 3225 /* one element that is an RV? repeat! */
2177 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3226 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2178 return 1; 3227 return 1;
2179 3228
2180 /* restore status */ 3229 /* restore status */
2181 { 3230 {
2182 SV *data_sv = av_pop (state); 3231 SV *data_sv = av_pop (state);
… …
2221 dSP; 3270 dSP;
2222 3271
2223 static SV *prio_cv; 3272 static SV *prio_cv;
2224 static SV *prio_sv; 3273 static SV *prio_sv;
2225 3274
2226 if (expect_false (!prio_cv)) 3275 if (ecb_expect_false (!prio_cv))
2227 { 3276 {
2228 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3277 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2229 prio_sv = newSViv (0); 3278 prio_sv = newSViv (0);
2230 } 3279 }
2231 3280
… …
2250 3299
2251 for (i = 0; i < items; ++i) 3300 for (i = 0; i < items; ++i)
2252 PUSHs (arg [i]); 3301 PUSHs (arg [i]);
2253 3302
2254 /* now push the callback closure */ 3303 /* now push the callback closure */
2255 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))));
2256 3305
2257 /* now call the AIO function - we assume our request is uncancelable */ 3306 /* now call the AIO function - we assume our request is uncancelable */
2258 PUTBACK; 3307 PUTBACK;
2259 call_sv ((SV *)req, G_VOID | G_DISCARD); 3308 call_sv ((SV *)req, G_VOID | G_DISCARD);
2260 } 3309 }
2261 3310
2262 /* 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 */
2263 frame->data = (void *)state; 3312 frame->data = (void *)state;
2264 frame->prepare = prepare_schedule; 3313 frame->prepare = prepare_schedule;
2265 frame->check = slf_check_aio_req; 3314 frame->check = slf_check_aio_req;
2266} 3315}
2267 3316
… …
2275 XSRETURN_EMPTY; 3324 XSRETURN_EMPTY;
2276} 3325}
2277 3326
2278/*****************************************************************************/ 3327/*****************************************************************************/
2279 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
2280MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3458MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2281 3459
2282PROTOTYPES: DISABLE 3460PROTOTYPES: DISABLE
2283 3461
2284BOOT: 3462BOOT:
2285{ 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"
2286#ifdef USE_ITHREADS 3466#ifdef USE_ITHREADS
2287# if CORO_PTHREAD 3467# if CORO_PTHREAD
2288 coro_thx = PERL_GET_CONTEXT; 3468 coro_thx = PERL_GET_CONTEXT;
2289# endif 3469# endif
2290#endif 3470#endif
2291 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 ();
2292 3479
2293 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3480 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2294 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3481 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2295 3482
2296 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;
… …
2316 3503
2317 { 3504 {
2318 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3505 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2319 3506
2320 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3507 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2321 hv_store_ent (PL_custom_op_names, slf, 3508 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2322 newSVpv ("coro_slf", 0), 0);
2323 3509
2324 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3510 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2325 hv_store_ent (PL_custom_op_descs, slf, 3511 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2326 newSVpv ("coro schedule like function", 0), 0);
2327 } 3512 }
2328 3513
2329 coroapi.ver = CORO_API_VERSION; 3514 coroapi.ver = CORO_API_VERSION;
2330 coroapi.rev = CORO_API_REVISION; 3515 coroapi.rev = CORO_API_REVISION;
2331 3516
… …
2336 coroapi.prepare_nop = prepare_nop; 3521 coroapi.prepare_nop = prepare_nop;
2337 coroapi.prepare_schedule = prepare_schedule; 3522 coroapi.prepare_schedule = prepare_schedule;
2338 coroapi.prepare_cede = prepare_cede; 3523 coroapi.prepare_cede = prepare_cede;
2339 coroapi.prepare_cede_notself = prepare_cede_notself; 3524 coroapi.prepare_cede_notself = prepare_cede_notself;
2340 3525
2341 { 3526 time_init (aTHX);
2342 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2343 3527
2344 if (!svp) croak ("Time::HiRes is required");
2345 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2346
2347 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2348 }
2349
2350 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
2351} 3534}
2352 3535
2353SV * 3536SV *
2354new (char *klass, ...) 3537new (SV *klass, ...)
3538 ALIAS:
3539 Coro::new = 1
2355 CODE: 3540 CODE:
2356{ 3541 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2357 struct coro *coro; 3542 OUTPUT:
2358 MAGIC *mg;
2359 HV *hv;
2360 int i;
2361
2362 Newz (0, coro, 1, struct coro);
2363 coro->args = newAV ();
2364 coro->flags = CF_NEW;
2365
2366 if (coro_first) coro_first->prev = coro;
2367 coro->next = coro_first;
2368 coro_first = coro;
2369
2370 coro->hv = hv = newHV ();
2371 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2372 mg->mg_flags |= MGf_DUP;
2373 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2374
2375 av_extend (coro->args, items - 1);
2376 for (i = 1; i < items; i++)
2377 av_push (coro->args, newSVsv (ST (i)));
2378}
2379 OUTPUT:
2380 RETVAL 3543 RETVAL
2381
2382void
2383_set_stacklevel (...)
2384 CODE:
2385 CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2386 3544
2387void 3545void
2388transfer (...) 3546transfer (...)
2389 PROTOTYPE: $$ 3547 PROTOTYPE: $$
2390 CODE: 3548 CODE:
2391 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3549 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2392 3550
2393bool 3551SV *
2394_destroy (SV *coro_sv) 3552clone (Coro::State coro)
2395 CODE: 3553 CODE:
2396 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}
2397 OUTPUT: 3567 OUTPUT:
2398 RETVAL 3568 RETVAL
2399
2400void
2401_exit (int code)
2402 PROTOTYPE: $
2403 CODE:
2404 _exit (code);
2405 3569
2406int 3570int
2407cctx_stacksize (int new_stacksize = 0) 3571cctx_stacksize (int new_stacksize = 0)
2408 PROTOTYPE: ;$ 3572 PROTOTYPE: ;$
2409 CODE: 3573 CODE:
… …
2445void 3609void
2446list () 3610list ()
2447 PROTOTYPE: 3611 PROTOTYPE:
2448 PPCODE: 3612 PPCODE:
2449{ 3613{
2450 struct coro *coro; 3614 struct coro *coro;
2451 for (coro = coro_first; coro; coro = coro->next) 3615 for (coro = coro_first; coro; coro = coro->next)
2452 if (coro->hv) 3616 if (coro->hv)
2453 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3617 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2454} 3618}
2455 3619
… …
2459 eval = 1 3623 eval = 1
2460 CODE: 3624 CODE:
2461{ 3625{
2462 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3626 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2463 { 3627 {
2464 struct coro temp; 3628 struct coro *current = SvSTATE_current;
3629 struct CoroSLF slf_save;
2465 3630
2466 if (!(coro->flags & CF_RUNNING)) 3631 if (current != coro)
2467 { 3632 {
2468 PUTBACK; 3633 PUTBACK;
2469 save_perl (aTHX_ &temp); 3634 save_perl (aTHX_ current);
2470 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;
2471 } 3646 }
2472 3647
2473 {
2474 dSP;
2475 ENTER;
2476 SAVETMPS;
2477 PUTBACK;
2478 PUSHSTACK; 3648 PUSHSTACK;
3649
2479 PUSHMARK (SP); 3650 PUSHMARK (SP);
3651 PUTBACK;
2480 3652
2481 if (ix) 3653 if (ix)
2482 eval_sv (coderef, 0); 3654 eval_sv (coderef, 0);
2483 else 3655 else
2484 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3656 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2485 3657
2486 POPSTACK; 3658 POPSTACK;
2487 SPAGAIN; 3659 SPAGAIN;
2488 FREETMPS;
2489 LEAVE;
2490 PUTBACK;
2491 }
2492 3660
2493 if (!(coro->flags & CF_RUNNING)) 3661 if (current != coro)
2494 { 3662 {
3663 PUTBACK;
3664 slf_frame = slf_save;
2495 save_perl (aTHX_ coro); 3665 save_perl (aTHX_ coro);
2496 load_perl (aTHX_ &temp); 3666 load_perl (aTHX_ current);
2497 SPAGAIN; 3667 SPAGAIN;
2498 } 3668 }
2499 } 3669 }
2500} 3670}
2501 3671
… …
2504 PROTOTYPE: $ 3674 PROTOTYPE: $
2505 ALIAS: 3675 ALIAS:
2506 is_ready = CF_READY 3676 is_ready = CF_READY
2507 is_running = CF_RUNNING 3677 is_running = CF_RUNNING
2508 is_new = CF_NEW 3678 is_new = CF_NEW
2509 is_destroyed = CF_DESTROYED 3679 is_destroyed = CF_ZOMBIE
3680 is_zombie = CF_ZOMBIE
3681 is_suspended = CF_SUSPENDED
2510 CODE: 3682 CODE:
2511 RETVAL = boolSV (coro->flags & ix); 3683 RETVAL = boolSV (coro->flags & ix);
2512 OUTPUT: 3684 OUTPUT:
2513 RETVAL 3685 RETVAL
2514 3686
2515void 3687void
2516throw (Coro::State self, SV *throw = &PL_sv_undef) 3688throw (SV *self, SV *exception = &PL_sv_undef)
2517 PROTOTYPE: $;$ 3689 PROTOTYPE: $;$
2518 CODE: 3690 CODE:
2519{ 3691{
3692 struct coro *coro = SvSTATE (self);
2520 struct coro *current = SvSTATE_current; 3693 struct coro *current = SvSTATE_current;
2521 SV **throwp = self == current ? &coro_throw : &self->throw; 3694 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2522 SvREFCNT_dec (*throwp); 3695 SvREFCNT_dec (*exceptionp);
2523 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3696 SvGETMAGIC (exception);
3697 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3698
3699 api_ready (aTHX_ self);
2524} 3700}
2525 3701
2526void 3702void
2527api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3703api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2528 PROTOTYPE: $;$ 3704 PROTOTYPE: $;$
… …
2530 3706
2531SV * 3707SV *
2532has_cctx (Coro::State coro) 3708has_cctx (Coro::State coro)
2533 PROTOTYPE: $ 3709 PROTOTYPE: $
2534 CODE: 3710 CODE:
2535 RETVAL = boolSV (!!coro->cctx); 3711 /* maybe manage the running flag differently */
3712 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2536 OUTPUT: 3713 OUTPUT:
2537 RETVAL 3714 RETVAL
2538 3715
2539int 3716int
2540is_traced (Coro::State coro) 3717is_traced (Coro::State coro)
… …
2560 3737
2561void 3738void
2562force_cctx () 3739force_cctx ()
2563 PROTOTYPE: 3740 PROTOTYPE:
2564 CODE: 3741 CODE:
2565 SvSTATE_current->cctx->idle_sp = 0; 3742 cctx_current->idle_sp = 0;
2566 3743
2567void 3744void
2568swap_defsv (Coro::State self) 3745swap_defsv (Coro::State self)
2569 PROTOTYPE: $ 3746 PROTOTYPE: $
2570 ALIAS: 3747 ALIAS:
… …
2578 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3755 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2579 3756
2580 SV *tmp = *src; *src = *dst; *dst = tmp; 3757 SV *tmp = *src; *src = *dst; *dst = tmp;
2581 } 3758 }
2582 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
2583 3821
2584MODULE = Coro::State PACKAGE = Coro 3822MODULE = Coro::State PACKAGE = Coro
2585 3823
2586BOOT: 3824BOOT:
2587{ 3825{
2588 int i;
2589
2590 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2591 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3826 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2592 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3827 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2593 3828 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2594 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3829 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2595 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);
3834
3835 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3836 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3837 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3838 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
2596 3839
2597 coro_stash = gv_stashpv ("Coro", TRUE); 3840 coro_stash = gv_stashpv ("Coro", TRUE);
2598 3841
2599 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3842 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2600 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3843 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2601 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3844 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2602 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3845 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2603 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3846 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2604 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3847 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2605
2606 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2607 coro_ready[i] = newAV ();
2608 3848
2609 { 3849 {
2610 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3850 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2611 3851
2612 coroapi.schedule = api_schedule; 3852 coroapi.schedule = api_schedule;
3853 coroapi.schedule_to = api_schedule_to;
2613 coroapi.cede = api_cede; 3854 coroapi.cede = api_cede;
2614 coroapi.cede_notself = api_cede_notself; 3855 coroapi.cede_notself = api_cede_notself;
2615 coroapi.ready = api_ready; 3856 coroapi.ready = api_ready;
2616 coroapi.is_ready = api_is_ready; 3857 coroapi.is_ready = api_is_ready;
2617 coroapi.nready = coro_nready; 3858 coroapi.nready = coro_nready;
2618 coroapi.current = coro_current; 3859 coroapi.current = coro_current;
2619 3860
2620 GCoroAPI = &coroapi; 3861 /*GCoroAPI = &coroapi;*/
2621 sv_setiv (sv, (IV)&coroapi); 3862 sv_setiv (sv, (IV)&coroapi);
2622 SvREADONLY_on (sv); 3863 SvREADONLY_on (sv);
2623 } 3864 }
2624} 3865}
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
2625 3905
2626void 3906void
2627schedule (...) 3907schedule (...)
2628 CODE: 3908 CODE:
2629 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);
2630 3920
2631void 3921void
2632cede (...) 3922cede (...)
2633 CODE: 3923 CODE:
2634 CORO_EXECUTE_SLF_XS (slf_init_cede); 3924 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2648void 3938void
2649_set_readyhook (SV *hook) 3939_set_readyhook (SV *hook)
2650 PROTOTYPE: $ 3940 PROTOTYPE: $
2651 CODE: 3941 CODE:
2652 SvREFCNT_dec (coro_readyhook); 3942 SvREFCNT_dec (coro_readyhook);
3943 SvGETMAGIC (hook);
3944 if (SvOK (hook))
3945 {
2653 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 }
2654 3954
2655int 3955int
2656prio (Coro::State coro, int newprio = 0) 3956prio (Coro::State coro, int newprio = 0)
2657 PROTOTYPE: $;$ 3957 PROTOTYPE: $;$
2658 ALIAS: 3958 ALIAS:
… …
2664 if (items > 1) 3964 if (items > 1)
2665 { 3965 {
2666 if (ix) 3966 if (ix)
2667 newprio = coro->prio - newprio; 3967 newprio = coro->prio - newprio;
2668 3968
2669 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3969 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2670 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3970 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2671 3971
2672 coro->prio = newprio; 3972 coro->prio = newprio;
2673 } 3973 }
2674} 3974}
2675 OUTPUT: 3975 OUTPUT:
… …
2689 CODE: 3989 CODE:
2690 RETVAL = coro_nready; 3990 RETVAL = coro_nready;
2691 OUTPUT: 3991 OUTPUT:
2692 RETVAL 3992 RETVAL
2693 3993
2694# for async_pool speedup
2695void 3994void
2696_pool_1 (SV *cb) 3995suspend (Coro::State self)
3996 PROTOTYPE: $
2697 CODE: 3997 CODE:
2698{ 3998 self->flags |= CF_SUSPENDED;
2699 HV *hv = (HV *)SvRV (coro_current);
2700 struct coro *coro = SvSTATE_hv ((SV *)hv);
2701 AV *defav = GvAV (PL_defgv);
2702 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2703 AV *invoke_av;
2704 int i, len;
2705 3999
2706 if (!invoke) 4000void
4001resume (Coro::State self)
4002 PROTOTYPE: $
4003 CODE:
4004 self->flags &= ~CF_SUSPENDED;
4005
4006void
4007_pool_handler (...)
4008 CODE:
4009 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
4010
4011void
4012async_pool (SV *cv, ...)
4013 PROTOTYPE: &@
4014 PPCODE:
4015{
4016 HV *hv = (HV *)av_pop (av_async_pool);
4017 AV *av = newAV ();
4018 SV *cb = ST (0);
4019 int i;
4020
4021 av_extend (av, items - 2);
4022 for (i = 1; i < items; ++i)
4023 av_push (av, SvREFCNT_inc_NN (ST (i)));
4024
4025 if ((SV *)hv == &PL_sv_undef)
2707 { 4026 {
2708 SV *old = PL_diehook; 4027 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2709 PL_diehook = 0; 4028 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2710 SvREFCNT_dec (old); 4029 SvREFCNT_dec (sv);
2711 croak ("\3async_pool terminate\2\n");
2712 } 4030 }
2713 4031
2714 SvREFCNT_dec (coro->saved_deffh);
2715 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2716
2717 hv_store (hv, "desc", sizeof ("desc") - 1,
2718 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2719
2720 invoke_av = (AV *)SvRV (invoke);
2721 len = av_len (invoke_av);
2722
2723 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2724
2725 if (len > 0)
2726 { 4032 {
2727 av_fill (defav, len - 1); 4033 struct coro *coro = SvSTATE_hv (hv);
2728 for (i = 0; i < len; ++i) 4034
2729 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 4035 assert (!coro->invoke_cb);
4036 assert (!coro->invoke_av);
4037 coro->invoke_cb = SvREFCNT_inc (cb);
4038 coro->invoke_av = av;
2730 } 4039 }
4040
4041 api_ready (aTHX_ (SV *)hv);
4042
4043 if (GIMME_V != G_VOID)
4044 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
4045 else
4046 SvREFCNT_dec (hv);
2731} 4047}
4048
4049SV *
4050rouse_cb ()
4051 PROTOTYPE:
4052 CODE:
4053 RETVAL = coro_new_rouse_cb (aTHX);
4054 OUTPUT:
4055 RETVAL
2732 4056
2733void 4057void
2734_pool_2 (SV *cb) 4058rouse_wait (...)
4059 PROTOTYPE: ;$
4060 PPCODE:
4061 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
4062
4063void
4064on_enter (SV *block)
4065 ALIAS:
4066 on_leave = 1
4067 PROTOTYPE: &
2735 CODE: 4068 CODE:
2736{ 4069{
2737 HV *hv = (HV *)SvRV (coro_current);
2738 struct coro *coro = SvSTATE_hv ((SV *)hv); 4070 struct coro *coro = SvSTATE_current;
4071 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
2739 4072
2740 sv_setsv (cb, &PL_sv_undef); 4073 block = s_get_cv_croak (block);
2741 4074
2742 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 4075 if (!*avp)
2743 coro->saved_deffh = 0; 4076 *avp = newAV ();
2744 4077
2745 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 4078 av_push (*avp, SvREFCNT_inc (block));
2746 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2747 {
2748 SV *old = PL_diehook;
2749 PL_diehook = 0;
2750 SvREFCNT_dec (old);
2751 croak ("\3async_pool terminate\2\n");
2752 }
2753 4079
2754 av_clear (GvAV (PL_defgv)); 4080 if (!ix)
2755 hv_store (hv, "desc", sizeof ("desc") - 1, 4081 on_enterleave_call (aTHX_ block);
2756 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2757 4082
2758 coro->prio = 0; 4083 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2759 4084 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
2760 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 4085 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2761 api_trace (aTHX_ coro_current, 0);
2762
2763 av_push (av_async_pool, newSVsv (coro_current));
2764} 4086}
2765 4087
2766 4088
2767MODULE = Coro::State PACKAGE = PerlIO::cede 4089MODULE = Coro::State PACKAGE = PerlIO::cede
2768 4090
… …
2771 4093
2772 4094
2773MODULE = Coro::State PACKAGE = Coro::Semaphore 4095MODULE = Coro::State PACKAGE = Coro::Semaphore
2774 4096
2775SV * 4097SV *
2776new (SV *klass, SV *count_ = 0) 4098new (SV *klass, SV *count = 0)
2777 CODE: 4099 CODE:
2778{ 4100{
2779 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 4101 int semcnt = 1;
2780 AV *av = newAV (); 4102
2781 av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); 4103 if (count)
2782 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); 4104 {
4105 SvGETMAGIC (count);
4106
4107 if (SvOK (count))
4108 semcnt = SvIV (count);
4109 }
4110
4111 RETVAL = sv_bless (
4112 coro_waitarray_new (aTHX_ semcnt),
4113 GvSTASH (CvGV (cv))
4114 );
2783} 4115}
4116 OUTPUT:
4117 RETVAL
4118
4119# helper for Coro::Channel and others
4120SV *
4121_alloc (int count)
4122 CODE:
4123 RETVAL = coro_waitarray_new (aTHX_ count);
2784 OUTPUT: 4124 OUTPUT:
2785 RETVAL 4125 RETVAL
2786 4126
2787SV * 4127SV *
2788count (SV *self) 4128count (SV *self)
… …
2797 adjust = 1 4137 adjust = 1
2798 CODE: 4138 CODE:
2799 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 4139 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2800 4140
2801void 4141void
2802down (SV *self) 4142down (...)
2803 CODE: 4143 CODE:
2804 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 4144 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
4145
4146void
4147wait (...)
4148 CODE:
4149 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2805 4150
2806void 4151void
2807try (SV *self) 4152try (SV *self)
2808 PPCODE: 4153 PPCODE:
2809{ 4154{
… …
2821 XSRETURN_NO; 4166 XSRETURN_NO;
2822} 4167}
2823 4168
2824void 4169void
2825waiters (SV *self) 4170waiters (SV *self)
2826 CODE: 4171 PPCODE:
2827{ 4172{
2828 AV *av = (AV *)SvRV (self); 4173 AV *av = (AV *)SvRV (self);
4174 int wcount = AvFILLp (av) + 1 - 1;
2829 4175
2830 if (GIMME_V == G_SCALAR) 4176 if (GIMME_V == G_SCALAR)
2831 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 4177 XPUSHs (sv_2mortal (newSViv (wcount)));
2832 else 4178 else
2833 { 4179 {
2834 int i; 4180 int i;
2835 EXTEND (SP, AvFILLp (av) + 1 - 1); 4181 EXTEND (SP, wcount);
2836 for (i = 1; i <= AvFILLp (av); ++i) 4182 for (i = 1; i <= wcount; ++i)
2837 PUSHs (newSVsv (AvARRAY (av)[i])); 4183 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2838 } 4184 }
2839} 4185}
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
4203MODULE = Coro::State PACKAGE = Coro::Signal
4204
4205SV *
4206new (SV *klass)
4207 CODE:
4208 RETVAL = sv_bless (
4209 coro_waitarray_new (aTHX_ 0),
4210 GvSTASH (CvGV (cv))
4211 );
4212 OUTPUT:
4213 RETVAL
4214
4215void
4216wait (...)
4217 CODE:
4218 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
4219
4220void
4221broadcast (SV *self)
4222 CODE:
4223{
4224 AV *av = (AV *)SvRV (self);
4225 coro_signal_wake (aTHX_ av, AvFILLp (av));
4226}
4227
4228void
4229send (SV *self)
4230 CODE:
4231{
4232 AV *av = (AV *)SvRV (self);
4233
4234 if (AvFILLp (av))
4235 coro_signal_wake (aTHX_ av, 1);
4236 else
4237 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
4238}
4239
4240IV
4241awaited (SV *self)
4242 CODE:
4243 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
4244 OUTPUT:
4245 RETVAL
2840 4246
2841 4247
2842MODULE = Coro::State PACKAGE = Coro::AnyEvent 4248MODULE = Coro::State PACKAGE = Coro::AnyEvent
2843 4249
2844BOOT: 4250BOOT:
… …
2846 4252
2847void 4253void
2848_schedule (...) 4254_schedule (...)
2849 CODE: 4255 CODE:
2850{ 4256{
2851 static int incede; 4257 static int incede;
2852 4258
2853 api_cede_notself (aTHX); 4259 api_cede_notself (aTHX);
2854 4260
2855 ++incede; 4261 ++incede;
2856 while (coro_nready >= incede && api_cede (aTHX)) 4262 while (coro_nready >= incede && api_cede (aTHX))
… …
2859 sv_setsv (sv_activity, &PL_sv_undef); 4265 sv_setsv (sv_activity, &PL_sv_undef);
2860 if (coro_nready >= incede) 4266 if (coro_nready >= incede)
2861 { 4267 {
2862 PUSHMARK (SP); 4268 PUSHMARK (SP);
2863 PUTBACK; 4269 PUTBACK;
2864 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); 4270 call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2865 SPAGAIN;
2866 } 4271 }
2867 4272
2868 --incede; 4273 --incede;
2869} 4274}
2870 4275
… …
2873 4278
2874void 4279void
2875_register (char *target, char *proto, SV *req) 4280_register (char *target, char *proto, SV *req)
2876 CODE: 4281 CODE:
2877{ 4282{
2878 HV *st; 4283 SV *req_cv = s_get_cv_croak (req);
2879 GV *gvp;
2880 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2881 /* newXSproto doesn't return the CV on 5.8 */ 4284 /* newXSproto doesn't return the CV on 5.8 */
2882 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4285 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2883 sv_setpv ((SV *)slf_cv, proto); 4286 sv_setpv ((SV *)slf_cv, proto);
2884 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);
2885} 4288}
2886 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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