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Comparing Coro/Coro/State.xs (file contents):
Revision 1.317 by root, Thu Nov 20 06:28:52 2008 UTC vs.
Revision 1.445 by root, Thu May 1 08:09:43 2014 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
48/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
49/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
50#if PERL_VERSION_ATLEAST(5,19,0)
51# define SVt_BIND SVt_IV
52#endif
53
54#if defined(_WIN32)
55# undef HAS_GETTIMEOFDAY
18# undef setjmp 56# undef setjmp
19# undef longjmp 57# undef longjmp
20# undef _exit 58# undef _exit
21# define setjmp _setjmp /* deep magic */ 59# define setjmp _setjmp /* deep magic */
22#else 60#else
23# include <inttypes.h> /* most portable stdint.h */ 61# include <inttypes.h> /* most portable stdint.h */
24#endif 62#endif
25 63
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 */ 64/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 65static int cctx_max_idle = 4;
55 66
56#define PERL_VERSION_ATLEAST(a,b,c) \ 67#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
57 (PERL_REVISION > (a) \ 68# define HAS_SCOPESTACK_NAME 1
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106
107/* 5.8.7 */
108#ifndef SvRV_set
109# define SvRV_set(s,v) SvRV(s) = (v)
110#endif
111
112#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
113# undef CORO_STACKGUARD
114#endif
115
116#ifndef CORO_STACKGUARD
117# define CORO_STACKGUARD 0
118#endif 69#endif
119 70
120/* prefer perl internal functions over our own? */ 71/* prefer perl internal functions over our own? */
121#ifndef CORO_PREFER_PERL_FUNCTIONS 72#ifndef CORO_PREFER_PERL_FUNCTIONS
122# define CORO_PREFER_PERL_FUNCTIONS 0 73# define CORO_PREFER_PERL_FUNCTIONS 0
… …
130#else 81#else
131# define dSTACKLEVEL volatile void *stacklevel 82# define dSTACKLEVEL volatile void *stacklevel
132# define STACKLEVEL ((void *)&stacklevel) 83# define STACKLEVEL ((void *)&stacklevel)
133#endif 84#endif
134 85
135#define IN_DESTRUCT (PL_main_cv == Nullcv) 86#define IN_DESTRUCT PL_dirty
136
137#if __GNUC__ >= 3
138# define attribute(x) __attribute__(x)
139# define expect(expr,value) __builtin_expect ((expr),(value))
140# define INLINE static inline
141#else
142# define attribute(x)
143# define expect(expr,value) (expr)
144# define INLINE static
145#endif
146
147#define expect_false(expr) expect ((expr) != 0, 0)
148#define expect_true(expr) expect ((expr) != 0, 1)
149
150#define NOINLINE attribute ((noinline))
151 87
152#include "CoroAPI.h" 88#include "CoroAPI.h"
153#define GCoroAPI (&coroapi) /* very sneaky */ 89#define GCoroAPI (&coroapi) /* very sneaky */
154 90
155#ifdef USE_ITHREADS 91#ifdef USE_ITHREADS
156# if CORO_PTHREAD 92# if CORO_PTHREAD
157static void *coro_thx; 93static void *coro_thx;
158# endif 94# endif
159#endif 95#endif
160 96
97#ifdef __linux
98# include <time.h> /* for timespec */
99# include <syscall.h> /* for SYS_* */
100# ifdef SYS_clock_gettime
101# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
102# define CORO_CLOCK_MONOTONIC 1
103# define CORO_CLOCK_THREAD_CPUTIME_ID 3
104# endif
105#endif
106
161static double (*nvtime)(); /* so why doesn't it take void? */ 107static double (*nvtime)(); /* so why doesn't it take void? */
108static void (*u2time)(pTHX_ UV ret[2]);
162 109
163/* we hijack an hopefully unused CV flag for our purposes */ 110/* we hijack an hopefully unused CV flag for our purposes */
164#define CVf_SLF 0x4000 111#define CVf_SLF 0x4000
165static OP *pp_slf (pTHX); 112static OP *pp_slf (pTHX);
113static void slf_destroy (pTHX_ struct coro *coro);
166 114
167static U32 cctx_gen; 115static U32 cctx_gen;
168static size_t cctx_stacksize = CORO_STACKSIZE; 116static size_t cctx_stacksize = CORO_STACKSIZE;
169static struct CoroAPI coroapi; 117static struct CoroAPI coroapi;
170static AV *main_mainstack; /* used to differentiate between $main and others */ 118static AV *main_mainstack; /* used to differentiate between $main and others */
171static JMPENV *main_top_env; 119static JMPENV *main_top_env;
172static HV *coro_state_stash, *coro_stash; 120static HV *coro_state_stash, *coro_stash;
173static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 121static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
174 122
123static AV *av_destroy; /* destruction queue */
124static SV *sv_manager; /* the manager coro */
125static SV *sv_idle; /* $Coro::idle */
126
175static GV *irsgv; /* $/ */ 127static GV *irsgv; /* $/ */
176static GV *stdoutgv; /* *STDOUT */ 128static GV *stdoutgv; /* *STDOUT */
177static SV *rv_diehook; 129static SV *rv_diehook;
178static SV *rv_warnhook; 130static SV *rv_warnhook;
179static HV *hv_sig; /* %SIG */ 131static HV *hv_sig; /* %SIG */
180 132
181/* async_pool helper stuff */ 133/* async_pool helper stuff */
182static SV *sv_pool_rss; 134static SV *sv_pool_rss;
183static SV *sv_pool_size; 135static SV *sv_pool_size;
184static SV *sv_async_pool_idle; 136static SV *sv_async_pool_idle; /* description string */
185static AV *av_async_pool; 137static AV *av_async_pool; /* idle pool */
186static SV *sv_Coro; 138static SV *sv_Coro; /* class string */
187static CV *cv_pool_handler; 139static CV *cv_pool_handler;
188static CV *cv_coro_state_new;
189 140
190/* Coro::AnyEvent */ 141/* Coro::AnyEvent */
191static SV *sv_activity; 142static SV *sv_activity;
192 143
144/* enable processtime/realtime profiling */
145static char enable_times;
146typedef U32 coro_ts[2];
147static coro_ts time_real, time_cpu;
148static char times_valid;
149
193static struct coro_cctx *cctx_first; 150static struct coro_cctx *cctx_first;
194static int cctx_count, cctx_idle; 151static int cctx_count, cctx_idle;
195 152
196enum { 153enum
154{
197 CC_MAPPED = 0x01, 155 CC_MAPPED = 0x01,
198 CC_NOREUSE = 0x02, /* throw this away after tracing */ 156 CC_NOREUSE = 0x02, /* throw this away after tracing */
199 CC_TRACE = 0x04, 157 CC_TRACE = 0x04,
200 CC_TRACE_SUB = 0x08, /* trace sub calls */ 158 CC_TRACE_SUB = 0x08, /* trace sub calls */
201 CC_TRACE_LINE = 0x10, /* trace each statement */ 159 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
206typedef struct coro_cctx 164typedef struct coro_cctx
207{ 165{
208 struct coro_cctx *next; 166 struct coro_cctx *next;
209 167
210 /* the stack */ 168 /* the stack */
211 void *sptr; 169 struct coro_stack stack;
212 size_t ssize;
213 170
214 /* cpu state */ 171 /* cpu state */
215 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 172 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
173#ifndef NDEBUG
216 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 174 JMPENV *idle_te; /* same as idle_sp, but for top_env */
175#endif
217 JMPENV *top_env; 176 JMPENV *top_env;
218 coro_context cctx; 177 coro_context cctx;
219 178
220 U32 gen; 179 U32 gen;
221#if CORO_USE_VALGRIND 180#if CORO_USE_VALGRIND
222 int valgrind_id; 181 int valgrind_id;
223#endif 182#endif
224 unsigned char flags; 183 unsigned char flags;
225} coro_cctx; 184} coro_cctx;
226 185
186static coro_cctx *cctx_current; /* the currently running cctx */
187
188/*****************************************************************************/
189
190static MGVTBL coro_state_vtbl;
191
227enum { 192enum
193{
228 CF_RUNNING = 0x0001, /* coroutine is running */ 194 CF_RUNNING = 0x0001, /* coroutine is running */
229 CF_READY = 0x0002, /* coroutine is ready */ 195 CF_READY = 0x0002, /* coroutine is ready */
230 CF_NEW = 0x0004, /* has never been switched to */ 196 CF_NEW = 0x0004, /* has never been switched to */
231 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 197 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
198 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
199 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
232}; 200};
233 201
234/* the structure where most of the perl state is stored, overlaid on the cxstack */ 202/* the structure where most of the perl state is stored, overlaid on the cxstack */
235typedef struct 203typedef struct
236{ 204{
237 SV *defsv;
238 AV *defav;
239 SV *errsv;
240 SV *irsgv;
241#define VAR(name,type) type name; 205 #define VARx(name,expr,type) type name;
242# include "state.h" 206 #include "state.h"
243#undef VAR
244} perl_slots; 207} perl_slots;
245 208
209/* how many context stack entries do we need for perl_slots */
246#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 210#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
247 211
248/* this is a structure representing a perl-level coroutine */ 212/* this is a structure representing a perl-level coroutine */
249struct coro { 213struct coro
214{
250 /* the C coroutine allocated to this perl coroutine, if any */ 215 /* the C coroutine allocated to this perl coroutine, if any */
251 coro_cctx *cctx; 216 coro_cctx *cctx;
217
218 /* ready queue */
219 struct coro *next_ready;
252 220
253 /* state data */ 221 /* state data */
254 struct CoroSLF slf_frame; /* saved slf frame */ 222 struct CoroSLF slf_frame; /* saved slf frame */
255 AV *mainstack; 223 AV *mainstack;
256 perl_slots *slot; /* basically the saved sp */ 224 perl_slots *slot; /* basically the saved sp */
257 225
258 CV *startcv; /* the CV to execute */ 226 CV *startcv; /* the CV to execute */
259 AV *args; /* data associated with this coroutine (initial args) */ 227 AV *args; /* data associated with this coroutine (initial args) */
260 int refcnt; /* coroutines are refcounted, yes */
261 int flags; /* CF_ flags */ 228 int flags; /* CF_ flags */
262 HV *hv; /* the perl hash associated with this coro, if any */ 229 HV *hv; /* the perl hash associated with this coro, if any */
263 void (*on_destroy)(pTHX_ struct coro *coro);
264 230
265 /* statistics */ 231 /* statistics */
266 int usecount; /* number of transfers to this coro */ 232 int usecount; /* number of transfers to this coro */
267 233
268 /* coro process data */ 234 /* coro process data */
269 int prio; 235 int prio;
270 SV *except; /* exception to be thrown */ 236 SV *except; /* exception to be thrown */
271 SV *rouse_cb; 237 SV *rouse_cb; /* last rouse callback */
238 AV *on_destroy; /* callbacks or coros to notify on destroy */
239 AV *status; /* the exit status list */
272 240
273 /* async_pool */ 241 /* async_pool */
274 SV *saved_deffh; 242 SV *saved_deffh;
275 SV *invoke_cb; 243 SV *invoke_cb;
276 AV *invoke_av; 244 AV *invoke_av;
277 245
246 /* on_enter/on_leave */
247 AV *on_enter;
248 AV *on_leave;
249
250 /* swap_sv */
251 AV *swap_sv;
252
253 /* times */
254 coro_ts t_cpu, t_real;
255
278 /* linked list */ 256 /* linked list */
279 struct coro *next, *prev; 257 struct coro *next, *prev;
280}; 258};
281 259
282typedef struct coro *Coro__State; 260typedef struct coro *Coro__State;
283typedef struct coro *Coro__State_or_hashref; 261typedef struct coro *Coro__State_or_hashref;
284 262
285/* the following variables are effectively part of the perl context */ 263/* the following variables are effectively part of the perl context */
286/* and get copied between struct coro and these variables */ 264/* and get copied between struct coro and these variables */
287/* the mainr easonw e don't support windows process emulation */ 265/* the main reason we don't support windows process emulation */
288static struct CoroSLF slf_frame; /* the current slf frame */ 266static struct CoroSLF slf_frame; /* the current slf frame */
289 267
290/** Coro ********************************************************************/ 268/** Coro ********************************************************************/
291 269
292#define PRIO_MAX 3 270#define CORO_PRIO_MAX 3
293#define PRIO_HIGH 1 271#define CORO_PRIO_HIGH 1
294#define PRIO_NORMAL 0 272#define CORO_PRIO_NORMAL 0
295#define PRIO_LOW -1 273#define CORO_PRIO_LOW -1
296#define PRIO_IDLE -3 274#define CORO_PRIO_IDLE -3
297#define PRIO_MIN -4 275#define CORO_PRIO_MIN -4
298 276
299/* for Coro.pm */ 277/* for Coro.pm */
300static SV *coro_current; 278static SV *coro_current;
301static SV *coro_readyhook; 279static SV *coro_readyhook;
302static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 280static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
303static CV *cv_coro_run, *cv_coro_terminate; 281static CV *cv_coro_run;
304static struct coro *coro_first; 282static struct coro *coro_first;
305#define coro_nready coroapi.nready 283#define coro_nready coroapi.nready
306 284
285/** JIT *********************************************************************/
286
287#if CORO_JIT
288 /* APPLE doesn't have mmap though */
289 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
290 #ifndef CORO_JIT_TYPE
291 #if ECB_AMD64 && CORO_JIT_UNIXY
292 #define CORO_JIT_TYPE "amd64-unix"
293 #elif __i386 && CORO_JIT_UNIXY
294 #define CORO_JIT_TYPE "x86-unix"
295 #endif
296 #endif
297#endif
298
299#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
300 #undef CORO_JIT
301#endif
302
303#if CORO_JIT
304 typedef void (*load_save_perl_slots_type)(perl_slots *);
305 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
306#endif
307
308/** Coro::Select ************************************************************/
309
310static OP *(*coro_old_pp_sselect) (pTHX);
311static SV *coro_select_select;
312
313/* horrible hack, but if it works... */
314static OP *
315coro_pp_sselect (pTHX)
316{
317 dSP;
318 PUSHMARK (SP - 4); /* fake argument list */
319 XPUSHs (coro_select_select);
320 PUTBACK;
321
322 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
323 PL_op->op_flags |= OPf_STACKED;
324 PL_op->op_private = 0;
325 return PL_ppaddr [OP_ENTERSUB](aTHX);
326}
327
328/** time stuff **************************************************************/
329
330#ifdef HAS_GETTIMEOFDAY
331
332ecb_inline void
333coro_u2time (pTHX_ UV ret[2])
334{
335 struct timeval tv;
336 gettimeofday (&tv, 0);
337
338 ret [0] = tv.tv_sec;
339 ret [1] = tv.tv_usec;
340}
341
342ecb_inline double
343coro_nvtime (void)
344{
345 struct timeval tv;
346 gettimeofday (&tv, 0);
347
348 return tv.tv_sec + tv.tv_usec * 1e-6;
349}
350
351ecb_inline void
352time_init (pTHX)
353{
354 nvtime = coro_nvtime;
355 u2time = coro_u2time;
356}
357
358#else
359
360ecb_inline void
361time_init (pTHX)
362{
363 SV **svp;
364
365 require_pv ("Time/HiRes.pm");
366
367 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
368
369 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
370 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
371
372 nvtime = INT2PTR (double (*)(), SvIV (*svp));
373
374 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
375 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
376}
377
378#endif
379
307/** lowlevel stuff **********************************************************/ 380/** lowlevel stuff **********************************************************/
308 381
309static SV * 382static SV * ecb_noinline
310coro_get_sv (pTHX_ const char *name, int create) 383coro_get_sv (pTHX_ const char *name, int create)
311{ 384{
312#if PERL_VERSION_ATLEAST (5,10,0) 385#if PERL_VERSION_ATLEAST (5,10,0)
313 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 386 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
314 get_sv (name, create); 387 get_sv (name, create);
315#endif 388#endif
316 return get_sv (name, create); 389 return get_sv (name, create);
317} 390}
318 391
319static AV * 392static AV * ecb_noinline
320coro_get_av (pTHX_ const char *name, int create) 393coro_get_av (pTHX_ const char *name, int create)
321{ 394{
322#if PERL_VERSION_ATLEAST (5,10,0) 395#if PERL_VERSION_ATLEAST (5,10,0)
323 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 396 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
324 get_av (name, create); 397 get_av (name, create);
325#endif 398#endif
326 return get_av (name, create); 399 return get_av (name, create);
327} 400}
328 401
329static HV * 402static HV * ecb_noinline
330coro_get_hv (pTHX_ const char *name, int create) 403coro_get_hv (pTHX_ const char *name, int create)
331{ 404{
332#if PERL_VERSION_ATLEAST (5,10,0) 405#if PERL_VERSION_ATLEAST (5,10,0)
333 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 406 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
334 get_hv (name, create); 407 get_hv (name, create);
335#endif 408#endif
336 return get_hv (name, create); 409 return get_hv (name, create);
337} 410}
338 411
339/* may croak */ 412ecb_inline void
340INLINE CV * 413coro_times_update (void)
341coro_sv_2cv (pTHX_ SV *sv)
342{ 414{
343 HV *st; 415#ifdef coro_clock_gettime
344 GV *gvp; 416 struct timespec ts;
345 return sv_2cv (sv, &st, &gvp, 0);
346}
347 417
348static AV * 418 ts.tv_sec = ts.tv_nsec = 0;
419 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
420 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
421
422 ts.tv_sec = ts.tv_nsec = 0;
423 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
424 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
425#else
426 dTHX;
427 UV tv[2];
428
429 u2time (aTHX_ tv);
430 time_real [0] = tv [0];
431 time_real [1] = tv [1] * 1000;
432#endif
433}
434
435ecb_inline void
436coro_times_add (struct coro *c)
437{
438 c->t_real [1] += time_real [1];
439 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
440 c->t_real [0] += time_real [0];
441
442 c->t_cpu [1] += time_cpu [1];
443 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
444 c->t_cpu [0] += time_cpu [0];
445}
446
447ecb_inline void
448coro_times_sub (struct coro *c)
449{
450 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
451 c->t_real [1] -= time_real [1];
452 c->t_real [0] -= time_real [0];
453
454 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
455 c->t_cpu [1] -= time_cpu [1];
456 c->t_cpu [0] -= time_cpu [0];
457}
458
459/*****************************************************************************/
460/* magic glue */
461
462#define CORO_MAGIC_type_cv 26
463#define CORO_MAGIC_type_state PERL_MAGIC_ext
464
465#define CORO_MAGIC_NN(sv, type) \
466 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
467 ? SvMAGIC (sv) \
468 : mg_find (sv, type))
469
470#define CORO_MAGIC(sv, type) \
471 (ecb_expect_true (SvMAGIC (sv)) \
472 ? CORO_MAGIC_NN (sv, type) \
473 : 0)
474
475#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
476#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
477
478ecb_inline MAGIC *
479SvSTATEhv_p (pTHX_ SV *coro)
480{
481 MAGIC *mg;
482
483 if (ecb_expect_true (
484 SvTYPE (coro) == SVt_PVHV
485 && (mg = CORO_MAGIC_state (coro))
486 && mg->mg_virtual == &coro_state_vtbl
487 ))
488 return mg;
489
490 return 0;
491}
492
493ecb_inline struct coro *
494SvSTATE_ (pTHX_ SV *coro)
495{
496 MAGIC *mg;
497
498 if (SvROK (coro))
499 coro = SvRV (coro);
500
501 mg = SvSTATEhv_p (aTHX_ coro);
502 if (!mg)
503 croak ("Coro::State object required");
504
505 return (struct coro *)mg->mg_ptr;
506}
507
508#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
509
510/* faster than SvSTATE, but expects a coroutine hv */
511#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
512#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
513
514/*****************************************************************************/
515/* padlist management and caching */
516
517ecb_inline PADLIST *
349coro_clone_padlist (pTHX_ CV *cv) 518coro_derive_padlist (pTHX_ CV *cv)
350{ 519{
351 AV *padlist = CvPADLIST (cv); 520 PADLIST *padlist = CvPADLIST (cv);
352 AV *newpadlist, *newpad; 521 PADLIST *newpadlist;
522 PAD *newpad;
523 PADOFFSET off = PadlistMAX (padlist) + 1;
353 524
354 newpadlist = newAV (); 525#if NEWPADAPI
526
527 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
528 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
529 while (!PadlistARRAY (padlist)[off - 1])
530 --off;
531
532 Perl_pad_push (aTHX_ padlist, off);
533
534 newpad = PadlistARRAY (padlist)[off];
535 PadlistARRAY (padlist)[off] = 0;
536
537#else
538
539#if PERL_VERSION_ATLEAST (5,10,0)
540 Perl_pad_push (aTHX_ padlist, off);
541#else
542 Perl_pad_push (aTHX_ padlist, off, 1);
543#endif
544
545 newpad = PadlistARRAY (padlist)[off];
546 PadlistMAX (padlist) = off - 1;
547
548#endif
549
550 newPADLIST (newpadlist);
551#if !PERL_VERSION_ATLEAST(5,15,3)
552 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
355 AvREAL_off (newpadlist); 553 AvREAL_off (newpadlist);
356#if PERL_VERSION_ATLEAST (5,10,0)
357 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
358#else
359 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
360#endif 554#endif
361 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
362 --AvFILLp (padlist);
363 555
364 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 556 /* Already extended to 2 elements by newPADLIST. */
365 av_store (newpadlist, 1, (SV *)newpad); 557 PadlistMAX (newpadlist) = 1;
558 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
559 PadlistARRAY (newpadlist)[1] = newpad;
366 560
367 return newpadlist; 561 return newpadlist;
368} 562}
369 563
370static void 564ecb_inline void
371free_padlist (pTHX_ AV *padlist) 565free_padlist (pTHX_ PADLIST *padlist)
372{ 566{
373 /* may be during global destruction */ 567 /* may be during global destruction */
374 if (SvREFCNT (padlist)) 568 if (!IN_DESTRUCT)
375 { 569 {
376 I32 i = AvFILLp (padlist); 570 I32 i = PadlistMAX (padlist);
377 while (i >= 0) 571
572 while (i > 0) /* special-case index 0 */
378 { 573 {
379 SV **svp = av_fetch (padlist, i--, FALSE); 574 /* we try to be extra-careful here */
575 PAD *pad = PadlistARRAY (padlist)[i--];
576
380 if (svp) 577 if (pad)
381 { 578 {
382 SV *sv; 579 I32 j = PadMAX (pad);
383 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 580
581 while (j >= 0)
384 SvREFCNT_dec (sv); 582 SvREFCNT_dec (PadARRAY (pad)[j--]);
385 583
584 PadMAX (pad) = -1;
386 SvREFCNT_dec (*svp); 585 SvREFCNT_dec (pad);
387 } 586 }
388 } 587 }
389 588
589 SvREFCNT_dec (PadlistNAMES (padlist));
590
591#if NEWPADAPI
592 Safefree (PadlistARRAY (padlist));
593 Safefree (padlist);
594#else
595 AvFILLp (padlist) = -1;
596 AvREAL_off (padlist);
390 SvREFCNT_dec ((SV*)padlist); 597 SvREFCNT_dec ((SV*)padlist);
598#endif
391 } 599 }
392} 600}
393 601
394static int 602static int
395coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 603coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
396{ 604{
397 AV *padlist; 605 PADLIST *padlist;
398 AV *av = (AV *)mg->mg_obj; 606 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
607 size_t len = *(size_t *)mg->mg_ptr;
399 608
400 /* casting is fun. */ 609 /* perl manages to free our internal AV and _then_ call us */
401 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 610 if (IN_DESTRUCT)
611 return 0;
612
613 while (len--)
402 free_padlist (aTHX_ padlist); 614 free_padlist (aTHX_ padlists[len]);
403
404 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
405 615
406 return 0; 616 return 0;
407} 617}
408
409#define CORO_MAGIC_type_cv 26
410#define CORO_MAGIC_type_state PERL_MAGIC_ext
411 618
412static MGVTBL coro_cv_vtbl = { 619static MGVTBL coro_cv_vtbl = {
413 0, 0, 0, 0, 620 0, 0, 0, 0,
414 coro_cv_free 621 coro_cv_free
415}; 622};
416 623
417#define CORO_MAGIC_NN(sv, type) \
418 (expect_true (SvMAGIC (sv)->mg_type == type) \
419 ? SvMAGIC (sv) \
420 : mg_find (sv, type))
421
422#define CORO_MAGIC(sv, type) \
423 (expect_true (SvMAGIC (sv)) \
424 ? CORO_MAGIC_NN (sv, type) \
425 : 0)
426
427#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
428#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
429
430INLINE struct coro *
431SvSTATE_ (pTHX_ SV *coro)
432{
433 HV *stash;
434 MAGIC *mg;
435
436 if (SvROK (coro))
437 coro = SvRV (coro);
438
439 if (expect_false (SvTYPE (coro) != SVt_PVHV))
440 croak ("Coro::State object required");
441
442 stash = SvSTASH (coro);
443 if (expect_false (stash != coro_stash && stash != coro_state_stash))
444 {
445 /* very slow, but rare, check */
446 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
447 croak ("Coro::State object required");
448 }
449
450 mg = CORO_MAGIC_state (coro);
451 return (struct coro *)mg->mg_ptr;
452}
453
454#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
455
456/* faster than SvSTATE, but expects a coroutine hv */
457#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
458#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
459
460/* the next two functions merely cache the padlists */ 624/* the next two functions merely cache the padlists */
461static void 625ecb_inline void
462get_padlist (pTHX_ CV *cv) 626get_padlist (pTHX_ CV *cv)
463{ 627{
464 MAGIC *mg = CORO_MAGIC_cv (cv); 628 MAGIC *mg = CORO_MAGIC_cv (cv);
465 AV *av; 629 size_t *lenp;
466 630
467 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 631 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
468 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 632 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
469 else 633 else
470 { 634 {
471#if CORO_PREFER_PERL_FUNCTIONS 635#if CORO_PREFER_PERL_FUNCTIONS
472 /* this is probably cleaner? but also slower! */ 636 /* this is probably cleaner? but also slower! */
473 /* in practise, it seems to be less stable */ 637 /* in practise, it seems to be less stable */
474 CV *cp = Perl_cv_clone (aTHX_ cv); 638 CV *cp = Perl_cv_clone (aTHX_ cv);
475 CvPADLIST (cv) = CvPADLIST (cp); 639 CvPADLIST (cv) = CvPADLIST (cp);
476 CvPADLIST (cp) = 0; 640 CvPADLIST (cp) = 0;
477 SvREFCNT_dec (cp); 641 SvREFCNT_dec (cp);
478#else 642#else
479 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 643 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
480#endif 644#endif
481 } 645 }
482} 646}
483 647
484static void 648ecb_inline void
485put_padlist (pTHX_ CV *cv) 649put_padlist (pTHX_ CV *cv)
486{ 650{
487 MAGIC *mg = CORO_MAGIC_cv (cv); 651 MAGIC *mg = CORO_MAGIC_cv (cv);
488 AV *av;
489 652
490 if (expect_false (!mg)) 653 if (ecb_expect_false (!mg))
654 {
491 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 655 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
656 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
657 mg->mg_len = 1; /* so mg_free frees mg_ptr */
658 }
659 else
660 Renew (mg->mg_ptr,
661 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
662 char);
492 663
493 av = (AV *)mg->mg_obj; 664 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
494
495 if (expect_false (AvFILLp (av) >= AvMAX (av)))
496 av_extend (av, AvMAX (av) + 1);
497
498 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
499} 665}
500 666
501/** load & save, init *******************************************************/ 667/** load & save, init *******************************************************/
668
669ecb_inline void
670swap_sv (SV *a, SV *b)
671{
672 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
673 SV tmp;
674
675 /* swap sv_any */
676 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
677
678 /* swap sv_flags */
679 SvFLAGS (&tmp) = SvFLAGS (a);
680 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
681 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
682
683#if PERL_VERSION_ATLEAST (5,10,0)
684 /* perl 5.10 and later complicates this _quite_ a bit, but it also
685 * is much faster, so no quarrels here. alternatively, we could
686 * sv_upgrade to avoid this.
687 */
688 {
689 /* swap sv_u */
690 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
691
692 /* if SvANY points to the head, we need to adjust the pointers,
693 * as the pointer for a still points to b, and maybe vice versa.
694 */
695 #define svany_in_head(type) \
696 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
697
698 if (svany_in_head (SvTYPE (a)))
699 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
700
701 if (svany_in_head (SvTYPE (b)))
702 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
703 }
704#endif
705}
706
707/* swap sv heads, at least logically */
708static void
709swap_svs (pTHX_ Coro__State c)
710{
711 int i;
712
713 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
714 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
715}
716
717#define SWAP_SVS(coro) \
718 if (ecb_expect_false ((coro)->swap_sv)) \
719 swap_svs (aTHX_ (coro))
720
721static void
722on_enterleave_call (pTHX_ SV *cb);
502 723
503static void 724static void
504load_perl (pTHX_ Coro__State c) 725load_perl (pTHX_ Coro__State c)
505{ 726{
506 perl_slots *slot = c->slot; 727 perl_slots *slot = c->slot;
507 c->slot = 0; 728 c->slot = 0;
508 729
509 PL_mainstack = c->mainstack; 730 PL_mainstack = c->mainstack;
510 731
511 GvSV (PL_defgv) = slot->defsv; 732#if CORO_JIT
512 GvAV (PL_defgv) = slot->defav; 733 load_perl_slots (slot);
513 GvSV (PL_errgv) = slot->errsv; 734#else
514 GvSV (irsgv) = slot->irsgv;
515
516 #define VAR(name,type) PL_ ## name = slot->name; 735 #define VARx(name,expr,type) expr = slot->name;
517 # include "state.h" 736 #include "state.h"
518 #undef VAR 737#endif
519 738
520 { 739 {
521 dSP; 740 dSP;
522 741
523 CV *cv; 742 CV *cv;
524 743
525 /* now do the ugly restore mess */ 744 /* now do the ugly restore mess */
526 while (expect_true (cv = (CV *)POPs)) 745 while (ecb_expect_true (cv = (CV *)POPs))
527 { 746 {
528 put_padlist (aTHX_ cv); /* mark this padlist as available */ 747 put_padlist (aTHX_ cv); /* mark this padlist as available */
529 CvDEPTH (cv) = PTR2IV (POPs); 748 CvDEPTH (cv) = PTR2IV (POPs);
530 CvPADLIST (cv) = (AV *)POPs; 749 CvPADLIST (cv) = (PADLIST *)POPs;
531 } 750 }
532 751
533 PUTBACK; 752 PUTBACK;
534 } 753 }
535 754
536 slf_frame = c->slf_frame; 755 slf_frame = c->slf_frame;
537 CORO_THROW = c->except; 756 CORO_THROW = c->except;
757
758 if (ecb_expect_false (enable_times))
759 {
760 if (ecb_expect_false (!times_valid))
761 coro_times_update ();
762
763 coro_times_sub (c);
764 }
765
766 if (ecb_expect_false (c->on_enter))
767 {
768 int i;
769
770 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
771 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
772 }
773
774 SWAP_SVS (c);
538} 775}
539 776
540static void 777static void
541save_perl (pTHX_ Coro__State c) 778save_perl (pTHX_ Coro__State c)
542{ 779{
780 SWAP_SVS (c);
781
782 if (ecb_expect_false (c->on_leave))
783 {
784 int i;
785
786 for (i = AvFILLp (c->on_leave); i >= 0; --i)
787 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
788 }
789
790 times_valid = 0;
791
792 if (ecb_expect_false (enable_times))
793 {
794 coro_times_update (); times_valid = 1;
795 coro_times_add (c);
796 }
797
543 c->except = CORO_THROW; 798 c->except = CORO_THROW;
544 c->slf_frame = slf_frame; 799 c->slf_frame = slf_frame;
545 800
546 { 801 {
547 dSP; 802 dSP;
… …
556 811
557 XPUSHs (Nullsv); 812 XPUSHs (Nullsv);
558 /* this loop was inspired by pp_caller */ 813 /* this loop was inspired by pp_caller */
559 for (;;) 814 for (;;)
560 { 815 {
561 while (expect_true (cxix >= 0)) 816 while (ecb_expect_true (cxix >= 0))
562 { 817 {
563 PERL_CONTEXT *cx = &ccstk[cxix--]; 818 PERL_CONTEXT *cx = &ccstk[cxix--];
564 819
565 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 820 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
566 { 821 {
567 CV *cv = cx->blk_sub.cv; 822 CV *cv = cx->blk_sub.cv;
568 823
569 if (expect_true (CvDEPTH (cv))) 824 if (ecb_expect_true (CvDEPTH (cv)))
570 { 825 {
571 EXTEND (SP, 3); 826 EXTEND (SP, 3);
572 PUSHs ((SV *)CvPADLIST (cv)); 827 PUSHs ((SV *)CvPADLIST (cv));
573 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 828 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
574 PUSHs ((SV *)cv); 829 PUSHs ((SV *)cv);
… …
577 get_padlist (aTHX_ cv); 832 get_padlist (aTHX_ cv);
578 } 833 }
579 } 834 }
580 } 835 }
581 836
582 if (expect_true (top_si->si_type == PERLSI_MAIN)) 837 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
583 break; 838 break;
584 839
585 top_si = top_si->si_prev; 840 top_si = top_si->si_prev;
586 ccstk = top_si->si_cxstack; 841 ccstk = top_si->si_cxstack;
587 cxix = top_si->si_cxix; 842 cxix = top_si->si_cxix;
… …
589 844
590 PUTBACK; 845 PUTBACK;
591 } 846 }
592 847
593 /* allocate some space on the context stack for our purposes */ 848 /* allocate some space on the context stack for our purposes */
594 /* we manually unroll here, as usually 2 slots is enough */ 849 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
595 if (SLOT_COUNT >= 1) CXINC;
596 if (SLOT_COUNT >= 2) CXINC;
597 if (SLOT_COUNT >= 3) CXINC;
598 { 850 {
599 int i; 851 unsigned int i;
852
600 for (i = 3; i < SLOT_COUNT; ++i) 853 for (i = 0; i < SLOT_COUNT; ++i)
601 CXINC; 854 CXINC;
602 } 855
603 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 856 cxstack_ix -= SLOT_COUNT; /* undo allocation */
857 }
604 858
605 c->mainstack = PL_mainstack; 859 c->mainstack = PL_mainstack;
606 860
607 { 861 {
608 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 862 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
609 863
610 slot->defav = GvAV (PL_defgv); 864#if CORO_JIT
611 slot->defsv = DEFSV; 865 save_perl_slots (slot);
612 slot->errsv = ERRSV; 866#else
613 slot->irsgv = GvSV (irsgv);
614
615 #define VAR(name,type) slot->name = PL_ ## name; 867 #define VARx(name,expr,type) slot->name = expr;
616 # include "state.h" 868 #include "state.h"
617 #undef VAR 869#endif
618 } 870 }
619} 871}
620 872
621/* 873/*
622 * allocate various perl stacks. This is almost an exact copy 874 * allocate various perl stacks. This is almost an exact copy
… …
628# define coro_init_stacks(thx) init_stacks () 880# define coro_init_stacks(thx) init_stacks ()
629#else 881#else
630static void 882static void
631coro_init_stacks (pTHX) 883coro_init_stacks (pTHX)
632{ 884{
633 PL_curstackinfo = new_stackinfo(32, 8); 885 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
634 PL_curstackinfo->si_type = PERLSI_MAIN; 886 PL_curstackinfo->si_type = PERLSI_MAIN;
635 PL_curstack = PL_curstackinfo->si_stack; 887 PL_curstack = PL_curstackinfo->si_stack;
636 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 888 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
637 889
638 PL_stack_base = AvARRAY(PL_curstack); 890 PL_stack_base = AvARRAY(PL_curstack);
… …
653#endif 905#endif
654 906
655 New(54,PL_scopestack,8,I32); 907 New(54,PL_scopestack,8,I32);
656 PL_scopestack_ix = 0; 908 PL_scopestack_ix = 0;
657 PL_scopestack_max = 8; 909 PL_scopestack_max = 8;
910#if HAS_SCOPESTACK_NAME
911 New(54,PL_scopestack_name,8,const char*);
912#endif
658 913
659 New(54,PL_savestack,24,ANY); 914 New(54,PL_savestack,24,ANY);
660 PL_savestack_ix = 0; 915 PL_savestack_ix = 0;
661 PL_savestack_max = 24; 916 PL_savestack_max = 24;
662 917
… …
690 } 945 }
691 946
692 Safefree (PL_tmps_stack); 947 Safefree (PL_tmps_stack);
693 Safefree (PL_markstack); 948 Safefree (PL_markstack);
694 Safefree (PL_scopestack); 949 Safefree (PL_scopestack);
950#if HAS_SCOPESTACK_NAME
951 Safefree (PL_scopestack_name);
952#endif
695 Safefree (PL_savestack); 953 Safefree (PL_savestack);
696#if !PERL_VERSION_ATLEAST (5,10,0) 954#if !PERL_VERSION_ATLEAST (5,10,0)
697 Safefree (PL_retstack); 955 Safefree (PL_retstack);
698#endif 956#endif
699} 957}
… …
745#endif 1003#endif
746 1004
747/* 1005/*
748 * This overrides the default magic get method of %SIG elements. 1006 * This overrides the default magic get method of %SIG elements.
749 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 1007 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
750 * and instead of tryign to save and restore the hash elements, we just provide 1008 * and instead of trying to save and restore the hash elements (extremely slow),
751 * readback here. 1009 * we just provide our own readback here.
752 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
753 * not expecting this to actually change the hook. This is a potential problem
754 * when a schedule happens then, but we ignore this.
755 */ 1010 */
756static int 1011static int ecb_cold
757coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 1012coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
758{ 1013{
759 const char *s = MgPV_nolen_const (mg); 1014 const char *s = MgPV_nolen_const (mg);
760 1015
761 if (*s == '_') 1016 if (*s == '_')
762 { 1017 {
763 SV **svp = 0; 1018 SV **svp = 0;
764 1019
765 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1020 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
766 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1021 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
767 1022
768 if (svp) 1023 if (svp)
769 { 1024 {
770 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1025 SV *ssv;
1026
1027 if (!*svp)
1028 ssv = &PL_sv_undef;
1029 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1030 ssv = sv_2mortal (newRV_inc (*svp));
1031 else
1032 ssv = *svp;
1033
1034 sv_setsv (sv, ssv);
771 return 0; 1035 return 0;
772 } 1036 }
773 } 1037 }
774 1038
775 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1039 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
776} 1040}
777 1041
778static int 1042static int ecb_cold
779coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 1043coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
780{ 1044{
781 const char *s = MgPV_nolen_const (mg); 1045 const char *s = MgPV_nolen_const (mg);
782 1046
783 if (*s == '_') 1047 if (*s == '_')
… …
797 } 1061 }
798 1062
799 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1063 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
800} 1064}
801 1065
802static int 1066static int ecb_cold
803coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1067coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
804{ 1068{
805 const char *s = MgPV_nolen_const (mg); 1069 const char *s = MgPV_nolen_const (mg);
806 1070
807 if (*s == '_') 1071 if (*s == '_')
… …
812 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1076 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
813 1077
814 if (svp) 1078 if (svp)
815 { 1079 {
816 SV *old = *svp; 1080 SV *old = *svp;
817 *svp = newSVsv (sv); 1081 *svp = SvOK (sv) ? newSVsv (sv) : 0;
818 SvREFCNT_dec (old); 1082 SvREFCNT_dec (old);
819 return 0; 1083 return 0;
820 } 1084 }
821 } 1085 }
822 1086
… …
834slf_check_nop (pTHX_ struct CoroSLF *frame) 1098slf_check_nop (pTHX_ struct CoroSLF *frame)
835{ 1099{
836 return 0; 1100 return 0;
837} 1101}
838 1102
839static UNOP coro_setup_op; 1103static int
1104slf_check_repeat (pTHX_ struct CoroSLF *frame)
1105{
1106 return 1;
1107}
840 1108
841static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1109static UNOP init_perl_op;
1110
1111ecb_noinline static void /* noinline to keep it out of the transfer fast path */
842coro_setup (pTHX_ struct coro *coro) 1112init_perl (pTHX_ struct coro *coro)
843{ 1113{
844 /* 1114 /*
845 * emulate part of the perl startup here. 1115 * emulate part of the perl startup here.
846 */ 1116 */
847 coro_init_stacks (aTHX); 1117 coro_init_stacks (aTHX);
848 1118
849 PL_runops = RUNOPS_DEFAULT; 1119 PL_runops = RUNOPS_DEFAULT;
850 PL_curcop = &PL_compiling; 1120 PL_curcop = &PL_compiling;
851 PL_in_eval = EVAL_NULL; 1121 PL_in_eval = EVAL_NULL;
852 PL_comppad = 0; 1122 PL_comppad = 0;
1123 PL_comppad_name = 0;
1124 PL_comppad_name_fill = 0;
1125 PL_comppad_name_floor = 0;
853 PL_curpm = 0; 1126 PL_curpm = 0;
854 PL_curpad = 0; 1127 PL_curpad = 0;
855 PL_localizing = 0; 1128 PL_localizing = 0;
856 PL_dirty = 0;
857 PL_restartop = 0; 1129 PL_restartop = 0;
858#if PERL_VERSION_ATLEAST (5,10,0) 1130#if PERL_VERSION_ATLEAST (5,10,0)
859 PL_parser = 0; 1131 PL_parser = 0;
860#endif 1132#endif
1133 PL_hints = 0;
861 1134
862 /* recreate the die/warn hooks */ 1135 /* recreate the die/warn hooks */
863 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1136 PL_diehook = SvREFCNT_inc (rv_diehook);
864 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1137 PL_warnhook = SvREFCNT_inc (rv_warnhook);
865 1138
866 GvSV (PL_defgv) = newSV (0); 1139 GvSV (PL_defgv) = newSV (0);
867 GvAV (PL_defgv) = coro->args; coro->args = 0; 1140 GvAV (PL_defgv) = coro->args; coro->args = 0;
868 GvSV (PL_errgv) = newSV (0); 1141 GvSV (PL_errgv) = newSV (0);
869 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1142 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1143 GvHV (PL_hintgv) = 0;
870 PL_rs = newSVsv (GvSV (irsgv)); 1144 PL_rs = newSVsv (GvSV (irsgv));
871 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1145 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
872 1146
873 { 1147 {
874 dSP; 1148 dSP;
… …
889 /* this newly created coroutine might be run on an existing cctx which most 1163 /* this newly created coroutine might be run on an existing cctx which most
890 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1164 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
891 */ 1165 */
892 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1166 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
893 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1167 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1168 slf_frame.destroy = 0;
894 1169
895 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1170 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
896 coro_setup_op.op_next = PL_op; 1171 init_perl_op.op_next = PL_op;
897 coro_setup_op.op_type = OP_CUSTOM; 1172 init_perl_op.op_type = OP_ENTERSUB;
898 coro_setup_op.op_ppaddr = pp_slf; 1173 init_perl_op.op_ppaddr = pp_slf;
899 /* no flags etc. required, as an init function won't be called */ 1174 /* no flags etc. required, as an init function won't be called */
900 1175
901 PL_op = (OP *)&coro_setup_op; 1176 PL_op = (OP *)&init_perl_op;
902 1177
903 /* copy throw, in case it was set before coro_setup */ 1178 /* copy throw, in case it was set before init_perl */
904 CORO_THROW = coro->except; 1179 CORO_THROW = coro->except;
905}
906 1180
1181 SWAP_SVS (coro);
1182
1183 if (ecb_expect_false (enable_times))
1184 {
1185 coro_times_update ();
1186 coro_times_sub (coro);
1187 }
1188}
1189
907static void 1190static void
908coro_destruct (pTHX_ struct coro *coro) 1191coro_unwind_stacks (pTHX)
909{ 1192{
910 if (!IN_DESTRUCT) 1193 if (!IN_DESTRUCT)
911 { 1194 {
912 /* restore all saved variables and stuff */ 1195 /* restore all saved variables and stuff */
913 LEAVE_SCOPE (0); 1196 LEAVE_SCOPE (0);
… …
921 POPSTACK_TO (PL_mainstack); 1204 POPSTACK_TO (PL_mainstack);
922 1205
923 /* unwind main stack */ 1206 /* unwind main stack */
924 dounwind (-1); 1207 dounwind (-1);
925 } 1208 }
1209}
926 1210
927 SvREFCNT_dec (GvSV (PL_defgv)); 1211static void
928 SvREFCNT_dec (GvAV (PL_defgv)); 1212destroy_perl (pTHX_ struct coro *coro)
929 SvREFCNT_dec (GvSV (PL_errgv)); 1213{
930 SvREFCNT_dec (PL_defoutgv); 1214 SV *svf [9];
931 SvREFCNT_dec (PL_rs);
932 SvREFCNT_dec (GvSV (irsgv));
933 1215
934 SvREFCNT_dec (PL_diehook);
935 SvREFCNT_dec (PL_warnhook);
936 1216 {
1217 SV *old_current = SvRV (coro_current);
1218 struct coro *current = SvSTATE (old_current);
1219
1220 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1221
1222 save_perl (aTHX_ current);
1223
1224 /* this will cause transfer_check to croak on block*/
1225 SvRV_set (coro_current, (SV *)coro->hv);
1226
1227 load_perl (aTHX_ coro);
1228
1229 coro_unwind_stacks (aTHX);
1230
1231 /* restore swapped sv's */
1232 SWAP_SVS (coro);
1233
1234 coro_destruct_stacks (aTHX);
1235
1236 /* now save some sv's to be free'd later */
1237 svf [0] = GvSV (PL_defgv);
1238 svf [1] = (SV *)GvAV (PL_defgv);
1239 svf [2] = GvSV (PL_errgv);
1240 svf [3] = (SV *)PL_defoutgv;
1241 svf [4] = PL_rs;
1242 svf [5] = GvSV (irsgv);
1243 svf [6] = (SV *)GvHV (PL_hintgv);
1244 svf [7] = PL_diehook;
1245 svf [8] = PL_warnhook;
1246 assert (9 == sizeof (svf) / sizeof (*svf));
1247
1248 SvRV_set (coro_current, old_current);
1249
1250 load_perl (aTHX_ current);
1251 }
1252
1253 {
1254 unsigned int i;
1255
1256 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1257 SvREFCNT_dec (svf [i]);
1258
937 SvREFCNT_dec (coro->saved_deffh); 1259 SvREFCNT_dec (coro->saved_deffh);
938 SvREFCNT_dec (coro->rouse_cb); 1260 SvREFCNT_dec (coro->rouse_cb);
939 SvREFCNT_dec (coro->invoke_cb); 1261 SvREFCNT_dec (coro->invoke_cb);
940 SvREFCNT_dec (coro->invoke_av); 1262 SvREFCNT_dec (coro->invoke_av);
941 1263 }
942 coro_destruct_stacks (aTHX);
943} 1264}
944 1265
945INLINE void 1266ecb_inline void
946free_coro_mortal (pTHX) 1267free_coro_mortal (pTHX)
947{ 1268{
948 if (expect_true (coro_mortal)) 1269 if (ecb_expect_true (coro_mortal))
949 { 1270 {
950 SvREFCNT_dec (coro_mortal); 1271 SvREFCNT_dec ((SV *)coro_mortal);
951 coro_mortal = 0; 1272 coro_mortal = 0;
952 } 1273 }
953} 1274}
954 1275
955static int 1276static int
956runops_trace (pTHX) 1277runops_trace (pTHX)
957{ 1278{
958 COP *oldcop = 0; 1279 COP *oldcop = 0;
959 int oldcxix = -2; 1280 int oldcxix = -2;
960 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
961 coro_cctx *cctx = coro->cctx;
962 1281
963 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1282 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
964 { 1283 {
965 PERL_ASYNC_CHECK (); 1284 PERL_ASYNC_CHECK ();
966 1285
967 if (cctx->flags & CC_TRACE_ALL) 1286 if (cctx_current->flags & CC_TRACE_ALL)
968 { 1287 {
969 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1288 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
970 { 1289 {
971 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1290 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
972 SV **bot, **top; 1291 SV **bot, **top;
973 AV *av = newAV (); /* return values */ 1292 AV *av = newAV (); /* return values */
974 SV **cb; 1293 SV **cb;
… …
1011 1330
1012 if (PL_curcop != &PL_compiling) 1331 if (PL_curcop != &PL_compiling)
1013 { 1332 {
1014 SV **cb; 1333 SV **cb;
1015 1334
1016 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1335 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1017 { 1336 {
1018 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1337 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1019 1338
1020 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1339 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1021 { 1340 {
1022 runops_proc_t old_runops = PL_runops;
1023 dSP; 1341 dSP;
1024 GV *gv = CvGV (cx->blk_sub.cv); 1342 GV *gv = CvGV (cx->blk_sub.cv);
1025 SV *fullname = sv_2mortal (newSV (0)); 1343 SV *fullname = sv_2mortal (newSV (0));
1026 1344
1027 if (isGV (gv)) 1345 if (isGV (gv))
… …
1045 } 1363 }
1046 1364
1047 oldcxix = cxstack_ix; 1365 oldcxix = cxstack_ix;
1048 } 1366 }
1049 1367
1050 if (cctx->flags & CC_TRACE_LINE) 1368 if (cctx_current->flags & CC_TRACE_LINE)
1051 { 1369 {
1052 dSP; 1370 dSP;
1053 1371
1054 PL_runops = RUNOPS_DEFAULT; 1372 PL_runops = RUNOPS_DEFAULT;
1055 ENTER; 1373 ENTER;
… …
1074 1392
1075 TAINT_NOT; 1393 TAINT_NOT;
1076 return 0; 1394 return 0;
1077} 1395}
1078 1396
1079static struct coro_cctx *cctx_ssl_cctx;
1080static struct CoroSLF cctx_ssl_frame; 1397static struct CoroSLF cctx_ssl_frame;
1081 1398
1082static void 1399static void
1083slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1400slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1084{ 1401{
1085 ta->prev = (struct coro *)cctx_ssl_cctx;
1086 ta->next = 0; 1402 ta->prev = 0;
1087} 1403}
1088 1404
1089static int 1405static int
1090slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1406slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1091{ 1407{
… …
1093 1409
1094 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1410 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1095} 1411}
1096 1412
1097/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1413/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1098static void NOINLINE 1414static void ecb_noinline
1099cctx_prepare (pTHX_ coro_cctx *cctx) 1415cctx_prepare (pTHX)
1100{ 1416{
1101 PL_top_env = &PL_start_env; 1417 PL_top_env = &PL_start_env;
1102 1418
1103 if (cctx->flags & CC_TRACE) 1419 if (cctx_current->flags & CC_TRACE)
1104 PL_runops = runops_trace; 1420 PL_runops = runops_trace;
1105 1421
1106 /* we already must be executing an SLF op, there is no other valid way 1422 /* we already must be executing an SLF op, there is no other valid way
1107 * that can lead to creation of a new cctx */ 1423 * that can lead to creation of a new cctx */
1108 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1424 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1109 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1425 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1110 1426
1111 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1427 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1112 cctx_ssl_cctx = cctx;
1113 cctx_ssl_frame = slf_frame; 1428 cctx_ssl_frame = slf_frame;
1114 1429
1115 slf_frame.prepare = slf_prepare_set_stacklevel; 1430 slf_frame.prepare = slf_prepare_set_stacklevel;
1116 slf_frame.check = slf_check_set_stacklevel; 1431 slf_frame.check = slf_check_set_stacklevel;
1117} 1432}
1118 1433
1119/* the tail of transfer: execute stuff we can only do after a transfer */ 1434/* the tail of transfer: execute stuff we can only do after a transfer */
1120INLINE void 1435ecb_inline void
1121transfer_tail (pTHX) 1436transfer_tail (pTHX)
1122{ 1437{
1123 free_coro_mortal (aTHX); 1438 free_coro_mortal (aTHX);
1439}
1440
1441/* try to exit the same way perl's main function would do */
1442/* we do not bother resetting the environment or other things *7
1443/* that are not, uhm, essential */
1444/* this obviously also doesn't work when perl is embedded */
1445static void ecb_noinline ecb_cold
1446perlish_exit (pTHX)
1447{
1448 int exitstatus = perl_destruct (PL_curinterp);
1449 perl_free (PL_curinterp);
1450 exit (exitstatus);
1124} 1451}
1125 1452
1126/* 1453/*
1127 * this is a _very_ stripped down perl interpreter ;) 1454 * this is a _very_ stripped down perl interpreter ;)
1128 */ 1455 */
… …
1140 /* normally we would need to skip the entersub here */ 1467 /* normally we would need to skip the entersub here */
1141 /* not doing so will re-execute it, which is exactly what we want */ 1468 /* not doing so will re-execute it, which is exactly what we want */
1142 /* PL_nop = PL_nop->op_next */ 1469 /* PL_nop = PL_nop->op_next */
1143 1470
1144 /* inject a fake subroutine call to cctx_init */ 1471 /* inject a fake subroutine call to cctx_init */
1145 cctx_prepare (aTHX_ (coro_cctx *)arg); 1472 cctx_prepare (aTHX);
1146 1473
1147 /* cctx_run is the alternative tail of transfer() */ 1474 /* cctx_run is the alternative tail of transfer() */
1148 transfer_tail (aTHX); 1475 transfer_tail (aTHX);
1149 1476
1150 /* somebody or something will hit me for both perl_run and PL_restartop */ 1477 /* somebody or something will hit me for both perl_run and PL_restartop */
1151 PL_restartop = PL_op; 1478 PL_restartop = PL_op;
1152 perl_run (PL_curinterp); 1479 perl_run (PL_curinterp);
1153 /* 1480 /*
1154 * Unfortunately, there is no way to get at the return values of the 1481 * Unfortunately, there is no way to get at the return values of the
1155 * coro body here, as perl_run destroys these 1482 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1483 * runtime errors here, as this is just a random interpreter, not a thread.
1156 */ 1484 */
1157 1485
1158 /* 1486 /*
1159 * If perl-run returns we assume exit() was being called or the coro 1487 * If perl-run returns we assume exit() was being called or the coro
1160 * fell off the end, which seems to be the only valid (non-bug) 1488 * fell off the end, which seems to be the only valid (non-bug)
1161 * reason for perl_run to return. We try to exit by jumping to the 1489 * reason for perl_run to return. We try to mimic whatever perl is normally
1162 * bootstrap-time "top" top_env, as we cannot restore the "main" 1490 * doing in that case. YMMV.
1163 * coroutine as Coro has no such concept
1164 */ 1491 */
1165 PL_top_env = main_top_env; 1492 perlish_exit (aTHX);
1166 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1167 } 1493 }
1168} 1494}
1169 1495
1170static coro_cctx * 1496static coro_cctx *
1171cctx_new () 1497cctx_new (void)
1172{ 1498{
1173 coro_cctx *cctx; 1499 coro_cctx *cctx;
1174 1500
1175 ++cctx_count; 1501 ++cctx_count;
1176 New (0, cctx, 1, coro_cctx); 1502 New (0, cctx, 1, coro_cctx);
… …
1182 return cctx; 1508 return cctx;
1183} 1509}
1184 1510
1185/* create a new cctx only suitable as source */ 1511/* create a new cctx only suitable as source */
1186static coro_cctx * 1512static coro_cctx *
1187cctx_new_empty () 1513cctx_new_empty (void)
1188{ 1514{
1189 coro_cctx *cctx = cctx_new (); 1515 coro_cctx *cctx = cctx_new ();
1190 1516
1191 cctx->sptr = 0; 1517 cctx->stack.sptr = 0;
1192 coro_create (&cctx->cctx, 0, 0, 0, 0); 1518 coro_create (&cctx->cctx, 0, 0, 0, 0);
1193 1519
1194 return cctx; 1520 return cctx;
1195} 1521}
1196 1522
1197/* create a new cctx suitable as destination/running a perl interpreter */ 1523/* create a new cctx suitable as destination/running a perl interpreter */
1198static coro_cctx * 1524static coro_cctx *
1199cctx_new_run () 1525cctx_new_run (void)
1200{ 1526{
1201 coro_cctx *cctx = cctx_new (); 1527 coro_cctx *cctx = cctx_new ();
1202 void *stack_start;
1203 size_t stack_size;
1204 1528
1205#if HAVE_MMAP 1529 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1206 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1207 /* mmap supposedly does allocate-on-write for us */
1208 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1209
1210 if (cctx->sptr != (void *)-1)
1211 {
1212 #if CORO_STACKGUARD
1213 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1214 #endif
1215 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1216 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1217 cctx->flags |= CC_MAPPED;
1218 } 1530 {
1219 else
1220#endif
1221 {
1222 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1223 New (0, cctx->sptr, cctx_stacksize, long);
1224
1225 if (!cctx->sptr)
1226 {
1227 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1531 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1228 _exit (EXIT_FAILURE); 1532 _exit (EXIT_FAILURE);
1229 }
1230
1231 stack_start = cctx->sptr;
1232 stack_size = cctx->ssize;
1233 } 1533 }
1234 1534
1235 #if CORO_USE_VALGRIND
1236 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1237 #endif
1238
1239 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1535 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1240 1536
1241 return cctx; 1537 return cctx;
1242} 1538}
1243 1539
1244static void 1540static void
1245cctx_destroy (coro_cctx *cctx) 1541cctx_destroy (coro_cctx *cctx)
1246{ 1542{
1247 if (!cctx) 1543 if (!cctx)
1248 return; 1544 return;
1249 1545
1546 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1547
1250 --cctx_count; 1548 --cctx_count;
1251 coro_destroy (&cctx->cctx); 1549 coro_destroy (&cctx->cctx);
1252 1550
1253 /* coro_transfer creates new, empty cctx's */ 1551 coro_stack_free (&cctx->stack);
1254 if (cctx->sptr)
1255 {
1256 #if CORO_USE_VALGRIND
1257 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1258 #endif
1259
1260#if HAVE_MMAP
1261 if (cctx->flags & CC_MAPPED)
1262 munmap (cctx->sptr, cctx->ssize);
1263 else
1264#endif
1265 Safefree (cctx->sptr);
1266 }
1267 1552
1268 Safefree (cctx); 1553 Safefree (cctx);
1269} 1554}
1270 1555
1271/* wether this cctx should be destructed */ 1556/* wether this cctx should be destructed */
1272#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1557#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1273 1558
1274static coro_cctx * 1559static coro_cctx *
1275cctx_get (pTHX) 1560cctx_get (pTHX)
1276{ 1561{
1277 while (expect_true (cctx_first)) 1562 while (ecb_expect_true (cctx_first))
1278 { 1563 {
1279 coro_cctx *cctx = cctx_first; 1564 coro_cctx *cctx = cctx_first;
1280 cctx_first = cctx->next; 1565 cctx_first = cctx->next;
1281 --cctx_idle; 1566 --cctx_idle;
1282 1567
1283 if (expect_true (!CCTX_EXPIRED (cctx))) 1568 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1284 return cctx; 1569 return cctx;
1285 1570
1286 cctx_destroy (cctx); 1571 cctx_destroy (cctx);
1287 } 1572 }
1288 1573
… …
1290} 1575}
1291 1576
1292static void 1577static void
1293cctx_put (coro_cctx *cctx) 1578cctx_put (coro_cctx *cctx)
1294{ 1579{
1295 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1580 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1296 1581
1297 /* free another cctx if overlimit */ 1582 /* free another cctx if overlimit */
1298 if (expect_false (cctx_idle >= cctx_max_idle)) 1583 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1299 { 1584 {
1300 coro_cctx *first = cctx_first; 1585 coro_cctx *first = cctx_first;
1301 cctx_first = first->next; 1586 cctx_first = first->next;
1302 --cctx_idle; 1587 --cctx_idle;
1303 1588
… …
1314static void 1599static void
1315transfer_check (pTHX_ struct coro *prev, struct coro *next) 1600transfer_check (pTHX_ struct coro *prev, struct coro *next)
1316{ 1601{
1317 /* TODO: throwing up here is considered harmful */ 1602 /* TODO: throwing up here is considered harmful */
1318 1603
1319 if (expect_true (prev != next)) 1604 if (ecb_expect_true (prev != next))
1320 { 1605 {
1321 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1606 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1322 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1607 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1323 1608
1324 if (expect_false (next->flags & CF_RUNNING)) 1609 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1325 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1326
1327 if (expect_false (next->flags & CF_DESTROYED))
1328 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1610 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1329 1611
1330#if !PERL_VERSION_ATLEAST (5,10,0) 1612#if !PERL_VERSION_ATLEAST (5,10,0)
1331 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1613 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1332 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1614 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1333#endif 1615#endif
1334 } 1616 }
1335} 1617}
1336 1618
1337/* always use the TRANSFER macro */ 1619/* always use the TRANSFER macro */
1338static void NOINLINE /* noinline so we have a fixed stackframe */ 1620static void ecb_noinline /* noinline so we have a fixed stackframe */
1339transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1621transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1340{ 1622{
1341 dSTACKLEVEL; 1623 dSTACKLEVEL;
1342 1624
1343 /* sometimes transfer is only called to set idle_sp */ 1625 /* sometimes transfer is only called to set idle_sp */
1344 if (expect_false (!next)) 1626 if (ecb_expect_false (!prev))
1345 { 1627 {
1346 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1628 cctx_current->idle_sp = STACKLEVEL;
1347 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1629 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1348 } 1630 }
1349 else if (expect_true (prev != next)) 1631 else if (ecb_expect_true (prev != next))
1350 { 1632 {
1351 coro_cctx *prev__cctx; 1633 coro_cctx *cctx_prev;
1352 1634
1353 if (expect_false (prev->flags & CF_NEW)) 1635 if (ecb_expect_false (prev->flags & CF_NEW))
1354 { 1636 {
1355 /* create a new empty/source context */ 1637 /* create a new empty/source context */
1356 prev->cctx = cctx_new_empty ();
1357 prev->flags &= ~CF_NEW; 1638 prev->flags &= ~CF_NEW;
1358 prev->flags |= CF_RUNNING; 1639 prev->flags |= CF_RUNNING;
1359 } 1640 }
1360 1641
1361 prev->flags &= ~CF_RUNNING; 1642 prev->flags &= ~CF_RUNNING;
1362 next->flags |= CF_RUNNING; 1643 next->flags |= CF_RUNNING;
1363 1644
1364 /* first get rid of the old state */ 1645 /* first get rid of the old state */
1365 save_perl (aTHX_ prev); 1646 save_perl (aTHX_ prev);
1366 1647
1367 if (expect_false (next->flags & CF_NEW)) 1648 if (ecb_expect_false (next->flags & CF_NEW))
1368 { 1649 {
1369 /* need to start coroutine */ 1650 /* need to start coroutine */
1370 next->flags &= ~CF_NEW; 1651 next->flags &= ~CF_NEW;
1371 /* setup coroutine call */ 1652 /* setup coroutine call */
1372 coro_setup (aTHX_ next); 1653 init_perl (aTHX_ next);
1373 } 1654 }
1374 else 1655 else
1375 load_perl (aTHX_ next); 1656 load_perl (aTHX_ next);
1376 1657
1377 prev__cctx = prev->cctx;
1378
1379 /* possibly untie and reuse the cctx */ 1658 /* possibly untie and reuse the cctx */
1380 if (expect_true ( 1659 if (ecb_expect_true (
1381 prev__cctx->idle_sp == STACKLEVEL 1660 cctx_current->idle_sp == STACKLEVEL
1382 && !(prev__cctx->flags & CC_TRACE) 1661 && !(cctx_current->flags & CC_TRACE)
1383 && !force_cctx 1662 && !force_cctx
1384 )) 1663 ))
1385 { 1664 {
1386 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1665 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1387 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1666 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1388 1667
1389 prev->cctx = 0;
1390
1391 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1668 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1392 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1669 /* without this the next cctx_get might destroy the running cctx while still in use */
1393 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1670 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1394 if (!next->cctx) 1671 if (ecb_expect_true (!next->cctx))
1395 next->cctx = cctx_get (aTHX); 1672 next->cctx = cctx_get (aTHX);
1396 1673
1397 cctx_put (prev__cctx); 1674 cctx_put (cctx_current);
1398 } 1675 }
1676 else
1677 prev->cctx = cctx_current;
1399 1678
1400 ++next->usecount; 1679 ++next->usecount;
1401 1680
1402 if (expect_true (!next->cctx)) 1681 cctx_prev = cctx_current;
1403 next->cctx = cctx_get (aTHX); 1682 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1404 1683
1405 if (expect_false (prev__cctx != next->cctx)) 1684 next->cctx = 0;
1685
1686 if (ecb_expect_false (cctx_prev != cctx_current))
1406 { 1687 {
1407 prev__cctx->top_env = PL_top_env; 1688 cctx_prev->top_env = PL_top_env;
1408 PL_top_env = next->cctx->top_env; 1689 PL_top_env = cctx_current->top_env;
1409 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1690 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1410 } 1691 }
1411 1692
1412 transfer_tail (aTHX); 1693 transfer_tail (aTHX);
1413 } 1694 }
1414} 1695}
… …
1416#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1697#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1417#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1698#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1418 1699
1419/** high level stuff ********************************************************/ 1700/** high level stuff ********************************************************/
1420 1701
1702/* this function is actually Coro, not Coro::State, but we call it from here */
1703/* because it is convenient - but it hasn't been declared yet for that reason */
1421static int 1704static void
1705coro_call_on_destroy (pTHX_ struct coro *coro);
1706
1707static void
1422coro_state_destroy (pTHX_ struct coro *coro) 1708coro_state_destroy (pTHX_ struct coro *coro)
1423{ 1709{
1424 if (coro->flags & CF_DESTROYED) 1710 if (coro->flags & CF_ZOMBIE)
1425 return 0; 1711 return;
1426 1712
1427 if (coro->on_destroy)
1428 coro->on_destroy (aTHX_ coro); 1713 slf_destroy (aTHX_ coro);
1429 1714
1430 coro->flags |= CF_DESTROYED; 1715 coro->flags |= CF_ZOMBIE;
1431 1716
1432 if (coro->flags & CF_READY) 1717 if (coro->flags & CF_READY)
1433 { 1718 {
1434 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1719 /* reduce nready, as destroying a ready coro effectively unreadies it */
1435 /* alternative: look through all ready queues and remove the coro */ 1720 /* alternative: look through all ready queues and remove the coro */
1436 --coro_nready; 1721 --coro_nready;
1437 } 1722 }
1438 else 1723 else
1439 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1724 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1440 1725
1441 if (coro->mainstack && coro->mainstack != main_mainstack) 1726 if (coro->next) coro->next->prev = coro->prev;
1442 { 1727 if (coro->prev) coro->prev->next = coro->next;
1443 struct coro temp; 1728 if (coro == coro_first) coro_first = coro->next;
1444 1729
1445 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1730 if (coro->mainstack
1446 1731 && coro->mainstack != main_mainstack
1447 save_perl (aTHX_ &temp); 1732 && coro->slot
1733 && !PL_dirty)
1448 load_perl (aTHX_ coro); 1734 destroy_perl (aTHX_ coro);
1449
1450 coro_destruct (aTHX_ coro);
1451
1452 load_perl (aTHX_ &temp);
1453
1454 coro->slot = 0;
1455 }
1456 1735
1457 cctx_destroy (coro->cctx); 1736 cctx_destroy (coro->cctx);
1458 SvREFCNT_dec (coro->startcv); 1737 SvREFCNT_dec (coro->startcv);
1459 SvREFCNT_dec (coro->args); 1738 SvREFCNT_dec (coro->args);
1739 SvREFCNT_dec (coro->swap_sv);
1460 SvREFCNT_dec (CORO_THROW); 1740 SvREFCNT_dec (CORO_THROW);
1461 1741
1462 if (coro->next) coro->next->prev = coro->prev; 1742 coro_call_on_destroy (aTHX_ coro);
1463 if (coro->prev) coro->prev->next = coro->next;
1464 if (coro == coro_first) coro_first = coro->next;
1465 1743
1466 return 1; 1744 /* more destruction mayhem in coro_state_free */
1467} 1745}
1468 1746
1469static int 1747static int
1470coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1748coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1471{ 1749{
1472 struct coro *coro = (struct coro *)mg->mg_ptr; 1750 struct coro *coro = (struct coro *)mg->mg_ptr;
1473 mg->mg_ptr = 0; 1751 mg->mg_ptr = 0;
1474 1752
1475 coro->hv = 0;
1476
1477 if (--coro->refcnt < 0)
1478 {
1479 coro_state_destroy (aTHX_ coro); 1753 coro_state_destroy (aTHX_ coro);
1754 SvREFCNT_dec (coro->on_destroy);
1755 SvREFCNT_dec (coro->status);
1756
1480 Safefree (coro); 1757 Safefree (coro);
1481 }
1482 1758
1483 return 0; 1759 return 0;
1484} 1760}
1485 1761
1486static int 1762static int ecb_cold
1487coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1763coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1488{ 1764{
1489 struct coro *coro = (struct coro *)mg->mg_ptr; 1765 /* called when perl clones the current process the slow way (windows process emulation) */
1490 1766 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1491 ++coro->refcnt; 1767 mg->mg_ptr = 0;
1768 mg->mg_virtual = 0;
1492 1769
1493 return 0; 1770 return 0;
1494} 1771}
1495 1772
1496static MGVTBL coro_state_vtbl = { 1773static MGVTBL coro_state_vtbl = {
… …
1519 1796
1520 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1797 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1521 TRANSFER (ta, 1); 1798 TRANSFER (ta, 1);
1522} 1799}
1523 1800
1524/*****************************************************************************/
1525/* gensub: simple closure generation utility */
1526
1527#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1528
1529/* create a closure from XS, returns a code reference */
1530/* the arg can be accessed via GENSUB_ARG from the callback */
1531/* the callback must use dXSARGS/XSRETURN */
1532static SV *
1533gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1534{
1535 CV *cv = (CV *)newSV (0);
1536
1537 sv_upgrade ((SV *)cv, SVt_PVCV);
1538
1539 CvANON_on (cv);
1540 CvISXSUB_on (cv);
1541 CvXSUB (cv) = xsub;
1542 GENSUB_ARG = arg;
1543
1544 return newRV_noinc ((SV *)cv);
1545}
1546
1547/** Coro ********************************************************************/ 1801/** Coro ********************************************************************/
1548 1802
1549INLINE void 1803ecb_inline void
1550coro_enq (pTHX_ struct coro *coro) 1804coro_enq (pTHX_ struct coro *coro)
1551{ 1805{
1552 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1806 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1553}
1554 1807
1555INLINE SV * 1808 SvREFCNT_inc_NN (coro->hv);
1809
1810 coro->next_ready = 0;
1811 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1812 ready [1] = coro;
1813}
1814
1815ecb_inline struct coro *
1556coro_deq (pTHX) 1816coro_deq (pTHX)
1557{ 1817{
1558 int prio; 1818 int prio;
1559 1819
1560 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1820 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1561 if (AvFILLp (coro_ready [prio]) >= 0) 1821 {
1562 return av_shift (coro_ready [prio]); 1822 struct coro **ready = coro_ready [prio];
1823
1824 if (ready [0])
1825 {
1826 struct coro *coro = ready [0];
1827 ready [0] = coro->next_ready;
1828 return coro;
1829 }
1830 }
1563 1831
1564 return 0; 1832 return 0;
1833}
1834
1835static void
1836invoke_sv_ready_hook_helper (void)
1837{
1838 dTHX;
1839 dSP;
1840
1841 ENTER;
1842 SAVETMPS;
1843
1844 PUSHMARK (SP);
1845 PUTBACK;
1846 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1847
1848 FREETMPS;
1849 LEAVE;
1565} 1850}
1566 1851
1567static int 1852static int
1568api_ready (pTHX_ SV *coro_sv) 1853api_ready (pTHX_ SV *coro_sv)
1569{ 1854{
1570 struct coro *coro;
1571 SV *sv_hook;
1572 void (*xs_hook)(void);
1573
1574 if (SvROK (coro_sv))
1575 coro_sv = SvRV (coro_sv);
1576
1577 coro = SvSTATE (coro_sv); 1855 struct coro *coro = SvSTATE (coro_sv);
1578 1856
1579 if (coro->flags & CF_READY) 1857 if (coro->flags & CF_READY)
1580 return 0; 1858 return 0;
1581 1859
1582 coro->flags |= CF_READY; 1860 coro->flags |= CF_READY;
1583 1861
1584 sv_hook = coro_nready ? 0 : coro_readyhook;
1585 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1586
1587 coro_enq (aTHX_ coro); 1862 coro_enq (aTHX_ coro);
1588 ++coro_nready;
1589 1863
1590 if (sv_hook) 1864 if (!coro_nready++)
1591 { 1865 if (coroapi.readyhook)
1592 dSP; 1866 coroapi.readyhook ();
1593
1594 ENTER;
1595 SAVETMPS;
1596
1597 PUSHMARK (SP);
1598 PUTBACK;
1599 call_sv (sv_hook, G_VOID | G_DISCARD);
1600
1601 FREETMPS;
1602 LEAVE;
1603 }
1604
1605 if (xs_hook)
1606 xs_hook ();
1607 1867
1608 return 1; 1868 return 1;
1609} 1869}
1610 1870
1611static int 1871static int
… …
1613{ 1873{
1614 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1874 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1615} 1875}
1616 1876
1617/* expects to own a reference to next->hv */ 1877/* expects to own a reference to next->hv */
1618INLINE void 1878ecb_inline void
1619prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1879prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1620{ 1880{
1621 SV *prev_sv = SvRV (coro_current); 1881 SV *prev_sv = SvRV (coro_current);
1622 1882
1623 ta->prev = SvSTATE_hv (prev_sv); 1883 ta->prev = SvSTATE_hv (prev_sv);
… …
1634static void 1894static void
1635prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1895prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1636{ 1896{
1637 for (;;) 1897 for (;;)
1638 { 1898 {
1639 SV *next_sv = coro_deq (aTHX); 1899 struct coro *next = coro_deq (aTHX);
1640 1900
1641 if (expect_true (next_sv)) 1901 if (ecb_expect_true (next))
1642 { 1902 {
1643 struct coro *next = SvSTATE_hv (next_sv);
1644
1645 /* cannot transfer to destroyed coros, skip and look for next */ 1903 /* cannot transfer to destroyed coros, skip and look for next */
1646 if (expect_false (next->flags & CF_DESTROYED)) 1904 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1647 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1905 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1648 else 1906 else
1649 { 1907 {
1650 next->flags &= ~CF_READY; 1908 next->flags &= ~CF_READY;
1651 --coro_nready; 1909 --coro_nready;
1652 1910
1653 return prepare_schedule_to (aTHX_ ta, next); 1911 prepare_schedule_to (aTHX_ ta, next);
1912 break;
1654 } 1913 }
1655 } 1914 }
1656 else 1915 else
1657 { 1916 {
1658 /* nothing to schedule: call the idle handler */ 1917 /* nothing to schedule: call the idle handler */
1918 if (SvROK (sv_idle)
1919 && SvOBJECT (SvRV (sv_idle)))
1920 {
1921 if (SvRV (sv_idle) == SvRV (coro_current))
1922 {
1923 require_pv ("Carp");
1924
1925 {
1926 dSP;
1927
1928 ENTER;
1929 SAVETMPS;
1930
1931 PUSHMARK (SP);
1932 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1933 PUTBACK;
1934 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1935
1936 FREETMPS;
1937 LEAVE;
1938 }
1939 }
1940
1941 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1942 api_ready (aTHX_ SvRV (sv_idle));
1943 --coro_nready;
1944 }
1945 else
1946 {
1947 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1659 dSP; 1948 dSP;
1660 1949
1661 ENTER; 1950 ENTER;
1662 SAVETMPS; 1951 SAVETMPS;
1663 1952
1664 PUSHMARK (SP); 1953 PUSHMARK (SP);
1665 PUTBACK; 1954 PUTBACK;
1666 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1955 call_sv (sv_idle, G_VOID | G_DISCARD);
1667 1956
1668 FREETMPS; 1957 FREETMPS;
1669 LEAVE; 1958 LEAVE;
1959 }
1670 } 1960 }
1671 } 1961 }
1672} 1962}
1673 1963
1674INLINE void 1964ecb_inline void
1675prepare_cede (pTHX_ struct coro_transfer_args *ta) 1965prepare_cede (pTHX_ struct coro_transfer_args *ta)
1676{ 1966{
1677 api_ready (aTHX_ coro_current); 1967 api_ready (aTHX_ coro_current);
1678 prepare_schedule (aTHX_ ta); 1968 prepare_schedule (aTHX_ ta);
1679} 1969}
1680 1970
1681INLINE void 1971ecb_inline void
1682prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1972prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1683{ 1973{
1684 SV *prev = SvRV (coro_current); 1974 SV *prev = SvRV (coro_current);
1685 1975
1686 if (coro_nready) 1976 if (coro_nready)
… …
1716{ 2006{
1717 struct coro_transfer_args ta; 2007 struct coro_transfer_args ta;
1718 2008
1719 prepare_cede (aTHX_ &ta); 2009 prepare_cede (aTHX_ &ta);
1720 2010
1721 if (expect_true (ta.prev != ta.next)) 2011 if (ecb_expect_true (ta.prev != ta.next))
1722 { 2012 {
1723 TRANSFER (ta, 1); 2013 TRANSFER (ta, 1);
1724 return 1; 2014 return 1;
1725 } 2015 }
1726 else 2016 else
… …
1745static void 2035static void
1746api_trace (pTHX_ SV *coro_sv, int flags) 2036api_trace (pTHX_ SV *coro_sv, int flags)
1747{ 2037{
1748 struct coro *coro = SvSTATE (coro_sv); 2038 struct coro *coro = SvSTATE (coro_sv);
1749 2039
2040 if (coro->flags & CF_RUNNING)
2041 croak ("cannot enable tracing on a running coroutine, caught");
2042
1750 if (flags & CC_TRACE) 2043 if (flags & CC_TRACE)
1751 { 2044 {
1752 if (!coro->cctx) 2045 if (!coro->cctx)
1753 coro->cctx = cctx_new_run (); 2046 coro->cctx = cctx_new_run ();
1754 else if (!(coro->cctx->flags & CC_TRACE)) 2047 else if (!(coro->cctx->flags & CC_TRACE))
1755 croak ("cannot enable tracing on coroutine with custom stack,"); 2048 croak ("cannot enable tracing on coroutine with custom stack, caught");
1756 2049
1757 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2050 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1758 } 2051 }
1759 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2052 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1760 { 2053 {
… …
1763 if (coro->flags & CF_RUNNING) 2056 if (coro->flags & CF_RUNNING)
1764 PL_runops = RUNOPS_DEFAULT; 2057 PL_runops = RUNOPS_DEFAULT;
1765 else 2058 else
1766 coro->slot->runops = RUNOPS_DEFAULT; 2059 coro->slot->runops = RUNOPS_DEFAULT;
1767 } 2060 }
2061}
2062
2063static void
2064coro_push_av (pTHX_ AV *av, I32 gimme_v)
2065{
2066 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2067 {
2068 dSP;
2069
2070 if (gimme_v == G_SCALAR)
2071 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2072 else
2073 {
2074 int i;
2075 EXTEND (SP, AvFILLp (av) + 1);
2076
2077 for (i = 0; i <= AvFILLp (av); ++i)
2078 PUSHs (AvARRAY (av)[i]);
2079 }
2080
2081 PUTBACK;
2082 }
2083}
2084
2085static void
2086coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2087{
2088 if (!coro->on_destroy)
2089 coro->on_destroy = newAV ();
2090
2091 av_push (coro->on_destroy, cb);
2092}
2093
2094static void
2095slf_destroy_join (pTHX_ struct CoroSLF *frame)
2096{
2097 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2098}
2099
2100static int
2101slf_check_join (pTHX_ struct CoroSLF *frame)
2102{
2103 struct coro *coro = (struct coro *)frame->data;
2104
2105 if (!coro->status)
2106 return 1;
2107
2108 frame->destroy = 0;
2109
2110 coro_push_av (aTHX_ coro->status, GIMME_V);
2111
2112 SvREFCNT_dec ((SV *)coro->hv);
2113
2114 return 0;
2115}
2116
2117static void
2118slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2119{
2120 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2121
2122 if (items > 1)
2123 croak ("join called with too many arguments");
2124
2125 if (coro->status)
2126 frame->prepare = prepare_nop;
2127 else
2128 {
2129 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2130 frame->prepare = prepare_schedule;
2131 }
2132
2133 frame->check = slf_check_join;
2134 frame->destroy = slf_destroy_join;
2135 frame->data = (void *)coro;
2136 SvREFCNT_inc (coro->hv);
2137}
2138
2139static void
2140coro_call_on_destroy (pTHX_ struct coro *coro)
2141{
2142 AV *od = coro->on_destroy;
2143
2144 if (!od)
2145 return;
2146
2147 coro->on_destroy = 0;
2148 sv_2mortal ((SV *)od);
2149
2150 while (AvFILLp (od) >= 0)
2151 {
2152 SV *cb = sv_2mortal (av_pop (od));
2153
2154 /* coro hv's (and only hv's at the moment) are supported as well */
2155 if (SvSTATEhv_p (aTHX_ cb))
2156 api_ready (aTHX_ cb);
2157 else
2158 {
2159 dSP; /* don't disturb outer sp */
2160 PUSHMARK (SP);
2161
2162 if (coro->status)
2163 {
2164 PUTBACK;
2165 coro_push_av (aTHX_ coro->status, G_ARRAY);
2166 SPAGAIN;
2167 }
2168
2169 PUTBACK;
2170 call_sv (cb, G_VOID | G_DISCARD);
2171 }
2172 }
2173}
2174
2175static void
2176coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2177{
2178 AV *av;
2179
2180 if (coro->status)
2181 {
2182 av = coro->status;
2183 av_clear (av);
2184 }
2185 else
2186 av = coro->status = newAV ();
2187
2188 /* items are actually not so common, so optimise for this case */
2189 if (items)
2190 {
2191 int i;
2192
2193 av_extend (av, items - 1);
2194
2195 for (i = 0; i < items; ++i)
2196 av_push (av, SvREFCNT_inc_NN (arg [i]));
2197 }
2198}
2199
2200static void
2201slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2202{
2203 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2204 api_ready (aTHX_ sv_manager);
2205
2206 frame->prepare = prepare_schedule;
2207 frame->check = slf_check_repeat;
2208
2209 /* as a minor optimisation, we could unwind all stacks here */
2210 /* but that puts extra pressure on pp_slf, and is not worth much */
2211 /*coro_unwind_stacks (aTHX);*/
2212}
2213
2214static void
2215slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2216{
2217 HV *coro_hv = (HV *)SvRV (coro_current);
2218
2219 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2220 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2221}
2222
2223static void
2224slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2225{
2226 HV *coro_hv;
2227 struct coro *coro;
2228
2229 if (items <= 0)
2230 croak ("Coro::cancel called without coro object,");
2231
2232 coro = SvSTATE (arg [0]);
2233 coro_hv = coro->hv;
2234
2235 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2236
2237 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2238 {
2239 /* coro currently busy cancelling something, so just notify it */
2240 coro->slf_frame.data = (void *)coro;
2241
2242 frame->prepare = prepare_nop;
2243 frame->check = slf_check_nop;
2244 }
2245 else if (coro_hv == (HV *)SvRV (coro_current))
2246 {
2247 /* cancelling the current coro is allowed, and equals terminate */
2248 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2249 }
2250 else
2251 {
2252 struct coro *self = SvSTATE_current;
2253
2254 if (!self)
2255 croak ("Coro::cancel called outside of thread content,");
2256
2257 /* otherwise we cancel directly, purely for speed reasons
2258 * unfortunately, this requires some magic trickery, as
2259 * somebody else could cancel us, so we have to fight the cancellation.
2260 * this is ugly, and hopefully fully worth the extra speed.
2261 * besides, I can't get the slow-but-safe version working...
2262 */
2263 slf_frame.data = 0;
2264 self->flags |= CF_NOCANCEL;
2265 coro_state_destroy (aTHX_ coro);
2266 self->flags &= ~CF_NOCANCEL;
2267
2268 if (slf_frame.data)
2269 {
2270 /* while we were busy we have been cancelled, so terminate */
2271 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2272 }
2273 else
2274 {
2275 frame->prepare = prepare_nop;
2276 frame->check = slf_check_nop;
2277 }
2278 }
2279}
2280
2281static int
2282slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2283{
2284 frame->prepare = 0;
2285 coro_unwind_stacks (aTHX);
2286
2287 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2288
2289 return 1;
2290}
2291
2292static int
2293safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2294{
2295 if (coro->cctx)
2296 croak ("coro inside C callback, unable to cancel at this time, caught");
2297
2298 if (coro->flags & CF_NEW)
2299 {
2300 coro_set_status (aTHX_ coro, arg, items);
2301 coro_state_destroy (aTHX_ coro);
2302 }
2303 else
2304 {
2305 if (!coro->slf_frame.prepare)
2306 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2307
2308 slf_destroy (aTHX_ coro);
2309
2310 coro_set_status (aTHX_ coro, arg, items);
2311 coro->slf_frame.prepare = prepare_nop;
2312 coro->slf_frame.check = slf_check_safe_cancel;
2313
2314 api_ready (aTHX_ (SV *)coro->hv);
2315 }
2316
2317 return 1;
1768} 2318}
1769 2319
1770/*****************************************************************************/ 2320/*****************************************************************************/
1771/* async pool handler */ 2321/* async pool handler */
1772 2322
… …
1803slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2353slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1804{ 2354{
1805 HV *hv = (HV *)SvRV (coro_current); 2355 HV *hv = (HV *)SvRV (coro_current);
1806 struct coro *coro = SvSTATE_hv ((SV *)hv); 2356 struct coro *coro = SvSTATE_hv ((SV *)hv);
1807 2357
1808 if (expect_true (coro->saved_deffh)) 2358 if (ecb_expect_true (coro->saved_deffh))
1809 { 2359 {
1810 /* subsequent iteration */ 2360 /* subsequent iteration */
1811 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2361 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1812 coro->saved_deffh = 0; 2362 coro->saved_deffh = 0;
1813 2363
1814 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2364 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1815 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2365 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1816 { 2366 {
1817 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2367 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1818 coro->invoke_av = newAV (); 2368 return;
1819
1820 frame->prepare = prepare_nop;
1821 } 2369 }
1822 else 2370 else
1823 { 2371 {
1824 av_clear (GvAV (PL_defgv)); 2372 av_clear (GvAV (PL_defgv));
1825 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2373 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1850 2398
1851static void 2399static void
1852coro_rouse_callback (pTHX_ CV *cv) 2400coro_rouse_callback (pTHX_ CV *cv)
1853{ 2401{
1854 dXSARGS; 2402 dXSARGS;
1855 SV *data = (SV *)GENSUB_ARG; 2403 SV *data = (SV *)S_GENSUB_ARG;
1856 2404
1857 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2405 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1858 { 2406 {
1859 /* first call, set args */ 2407 /* first call, set args */
2408 SV *coro = SvRV (data);
1860 AV *av = newAV (); 2409 AV *av = newAV ();
1861 SV *coro = SvRV (data);
1862 2410
1863 SvRV_set (data, (SV *)av); 2411 SvRV_set (data, (SV *)av);
1864 api_ready (aTHX_ coro);
1865 SvREFCNT_dec (coro);
1866 2412
1867 /* better take a full copy of the arguments */ 2413 /* better take a full copy of the arguments */
1868 while (items--) 2414 while (items--)
1869 av_store (av, items, newSVsv (ST (items))); 2415 av_store (av, items, newSVsv (ST (items)));
2416
2417 api_ready (aTHX_ coro);
2418 SvREFCNT_dec (coro);
1870 } 2419 }
1871 2420
1872 XSRETURN_EMPTY; 2421 XSRETURN_EMPTY;
1873} 2422}
1874 2423
1875static int 2424static int
1876slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2425slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1877{ 2426{
1878 SV *data = (SV *)frame->data; 2427 SV *data = (SV *)frame->data;
1879 2428
1880 if (CORO_THROW) 2429 if (CORO_THROW)
1881 return 0; 2430 return 0;
1882 2431
1883 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2432 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1884 return 1; 2433 return 1;
… …
1891 2440
1892 EXTEND (SP, AvFILLp (av) + 1); 2441 EXTEND (SP, AvFILLp (av) + 1);
1893 for (i = 0; i <= AvFILLp (av); ++i) 2442 for (i = 0; i <= AvFILLp (av); ++i)
1894 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2443 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1895 2444
1896 /* we have stolen the elements, so ste length to zero and free */ 2445 /* we have stolen the elements, so set length to zero and free */
1897 AvFILLp (av) = -1; 2446 AvFILLp (av) = -1;
1898 av_undef (av); 2447 av_undef (av);
1899 2448
1900 PUTBACK; 2449 PUTBACK;
1901 } 2450 }
… …
1920 cb = sv_2mortal (coro->rouse_cb); 2469 cb = sv_2mortal (coro->rouse_cb);
1921 coro->rouse_cb = 0; 2470 coro->rouse_cb = 0;
1922 } 2471 }
1923 2472
1924 if (!SvROK (cb) 2473 if (!SvROK (cb)
1925 || SvTYPE (SvRV (cb)) != SVt_PVCV 2474 || SvTYPE (SvRV (cb)) != SVt_PVCV
1926 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2475 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1927 croak ("Coro::rouse_wait called with illegal callback argument,"); 2476 croak ("Coro::rouse_wait called with illegal callback argument,");
1928 2477
1929 { 2478 {
1930 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2479 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1931 SV *data = (SV *)GENSUB_ARG; 2480 SV *data = (SV *)S_GENSUB_ARG;
1932 2481
1933 frame->data = (void *)data; 2482 frame->data = (void *)data;
1934 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2483 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1935 frame->check = slf_check_rouse_wait; 2484 frame->check = slf_check_rouse_wait;
1936 } 2485 }
… …
1940coro_new_rouse_cb (pTHX) 2489coro_new_rouse_cb (pTHX)
1941{ 2490{
1942 HV *hv = (HV *)SvRV (coro_current); 2491 HV *hv = (HV *)SvRV (coro_current);
1943 struct coro *coro = SvSTATE_hv (hv); 2492 struct coro *coro = SvSTATE_hv (hv);
1944 SV *data = newRV_inc ((SV *)hv); 2493 SV *data = newRV_inc ((SV *)hv);
1945 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2494 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1946 2495
1947 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2496 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1948 SvREFCNT_dec (data); /* magicext increases the refcount */ 2497 SvREFCNT_dec (data); /* magicext increases the refcount */
1949 2498
1950 SvREFCNT_dec (coro->rouse_cb); 2499 SvREFCNT_dec (coro->rouse_cb);
… …
2047static void 2596static void
2048slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2597slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2049{ 2598{
2050 frame->prepare = prepare_cede_notself; 2599 frame->prepare = prepare_cede_notself;
2051 frame->check = slf_check_nop; 2600 frame->check = slf_check_nop;
2601}
2602
2603/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2604static void
2605slf_destroy (pTHX_ struct coro *coro)
2606{
2607 struct CoroSLF frame = coro->slf_frame;
2608
2609 /*
2610 * The on_destroy below most likely is from an SLF call.
2611 * Since by definition the SLF call will not finish when we destroy
2612 * the coro, we will have to force-finish it here, otherwise
2613 * cleanup functions cannot call SLF functions.
2614 */
2615 coro->slf_frame.prepare = 0;
2616
2617 /* this callback is reserved for slf functions needing to do cleanup */
2618 if (frame.destroy && frame.prepare && !PL_dirty)
2619 frame.destroy (aTHX_ &frame);
2052} 2620}
2053 2621
2054/* 2622/*
2055 * these not obviously related functions are all rolled into one 2623 * these not obviously related functions are all rolled into one
2056 * function to increase chances that they all will call transfer with the same 2624 * function to increase chances that they all will call transfer with the same
… …
2063 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2631 I32 checkmark; /* mark SP to see how many elements check has pushed */
2064 2632
2065 /* set up the slf frame, unless it has already been set-up */ 2633 /* set up the slf frame, unless it has already been set-up */
2066 /* the latter happens when a new coro has been started */ 2634 /* the latter happens when a new coro has been started */
2067 /* or when a new cctx was attached to an existing coroutine */ 2635 /* or when a new cctx was attached to an existing coroutine */
2068 if (expect_true (!slf_frame.prepare)) 2636 if (ecb_expect_true (!slf_frame.prepare))
2069 { 2637 {
2070 /* first iteration */ 2638 /* first iteration */
2071 dSP; 2639 dSP;
2072 SV **arg = PL_stack_base + TOPMARK + 1; 2640 SV **arg = PL_stack_base + TOPMARK + 1;
2073 int items = SP - arg; /* args without function object */ 2641 int items = SP - arg; /* args without function object */
… …
2114 while (slf_frame.check (aTHX_ &slf_frame)); 2682 while (slf_frame.check (aTHX_ &slf_frame));
2115 2683
2116 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2684 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2117 2685
2118 /* exception handling */ 2686 /* exception handling */
2119 if (expect_false (CORO_THROW)) 2687 if (ecb_expect_false (CORO_THROW))
2120 { 2688 {
2121 SV *exception = sv_2mortal (CORO_THROW); 2689 SV *exception = sv_2mortal (CORO_THROW);
2122 2690
2123 CORO_THROW = 0; 2691 CORO_THROW = 0;
2124 sv_setsv (ERRSV, exception); 2692 sv_setsv (ERRSV, exception);
2125 croak (0); 2693 croak (0);
2126 } 2694 }
2127 2695
2128 /* return value handling - mostly like entersub */ 2696 /* return value handling - mostly like entersub */
2129 /* make sure we put something on the stack in scalar context */ 2697 /* make sure we put something on the stack in scalar context */
2130 if (GIMME_V == G_SCALAR) 2698 if (GIMME_V == G_SCALAR
2699 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2131 { 2700 {
2132 dSP; 2701 dSP;
2133 SV **bot = PL_stack_base + checkmark; 2702 SV **bot = PL_stack_base + checkmark;
2134 2703
2135 if (sp == bot) /* too few, push undef */ 2704 if (sp == bot) /* too few, push undef */
2136 bot [1] = &PL_sv_undef; 2705 bot [1] = &PL_sv_undef;
2137 else if (sp != bot + 1) /* too many, take last one */ 2706 else /* too many, take last one */
2138 bot [1] = *sp; 2707 bot [1] = *sp;
2139 2708
2140 SP = bot + 1; 2709 SP = bot + 1;
2141 2710
2142 PUTBACK; 2711 PUTBACK;
… …
2175 if (PL_op->op_flags & OPf_STACKED) 2744 if (PL_op->op_flags & OPf_STACKED)
2176 { 2745 {
2177 if (items > slf_arga) 2746 if (items > slf_arga)
2178 { 2747 {
2179 slf_arga = items; 2748 slf_arga = items;
2180 free (slf_argv); 2749 Safefree (slf_argv);
2181 slf_argv = malloc (slf_arga * sizeof (SV *)); 2750 New (0, slf_argv, slf_arga, SV *);
2182 } 2751 }
2183 2752
2184 slf_argc = items; 2753 slf_argc = items;
2185 2754
2186 for (i = 0; i < items; ++i) 2755 for (i = 0; i < items; ++i)
… …
2188 } 2757 }
2189 else 2758 else
2190 slf_argc = 0; 2759 slf_argc = 0;
2191 2760
2192 PL_op->op_ppaddr = pp_slf; 2761 PL_op->op_ppaddr = pp_slf;
2193 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2762 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2194 2763
2195 PL_op = (OP *)&slf_restore; 2764 PL_op = (OP *)&slf_restore;
2765}
2766
2767/*****************************************************************************/
2768/* dynamic wind */
2769
2770static void
2771on_enterleave_call (pTHX_ SV *cb)
2772{
2773 dSP;
2774
2775 PUSHSTACK;
2776
2777 PUSHMARK (SP);
2778 PUTBACK;
2779 call_sv (cb, G_VOID | G_DISCARD);
2780 SPAGAIN;
2781
2782 POPSTACK;
2783}
2784
2785static SV *
2786coro_avp_pop_and_free (pTHX_ AV **avp)
2787{
2788 AV *av = *avp;
2789 SV *res = av_pop (av);
2790
2791 if (AvFILLp (av) < 0)
2792 {
2793 *avp = 0;
2794 SvREFCNT_dec (av);
2795 }
2796
2797 return res;
2798}
2799
2800static void
2801coro_pop_on_enter (pTHX_ void *coro)
2802{
2803 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2804 SvREFCNT_dec (cb);
2805}
2806
2807static void
2808coro_pop_on_leave (pTHX_ void *coro)
2809{
2810 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2811 on_enterleave_call (aTHX_ sv_2mortal (cb));
2196} 2812}
2197 2813
2198/*****************************************************************************/ 2814/*****************************************************************************/
2199/* PerlIO::cede */ 2815/* PerlIO::cede */
2200 2816
… …
2202{ 2818{
2203 PerlIOBuf base; 2819 PerlIOBuf base;
2204 NV next, every; 2820 NV next, every;
2205} PerlIOCede; 2821} PerlIOCede;
2206 2822
2207static IV 2823static IV ecb_cold
2208PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2824PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2209{ 2825{
2210 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2826 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2211 2827
2212 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2828 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2213 self->next = nvtime () + self->every; 2829 self->next = nvtime () + self->every;
2214 2830
2215 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2831 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2216} 2832}
2217 2833
2218static SV * 2834static SV * ecb_cold
2219PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2835PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2220{ 2836{
2221 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2837 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2222 2838
2223 return newSVnv (self->every); 2839 return newSVnv (self->every);
… …
2274/* Coro::Semaphore & Coro::Signal */ 2890/* Coro::Semaphore & Coro::Signal */
2275 2891
2276static SV * 2892static SV *
2277coro_waitarray_new (pTHX_ int count) 2893coro_waitarray_new (pTHX_ int count)
2278{ 2894{
2279 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2895 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2280 AV *av = newAV (); 2896 AV *av = newAV ();
2281 SV **ary; 2897 SV **ary;
2282 2898
2283 /* unfortunately, building manually saves memory */ 2899 /* unfortunately, building manually saves memory */
2284 Newx (ary, 2, SV *); 2900 Newx (ary, 2, SV *);
2285 AvALLOC (av) = ary; 2901 AvALLOC (av) = ary;
2902#if PERL_VERSION_ATLEAST (5,10,0)
2286 /*AvARRAY (av) = ary;*/ 2903 AvARRAY (av) = ary;
2904#else
2287 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2905 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2906 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2907 SvPVX ((SV *)av) = (char *)ary;
2908#endif
2288 AvMAX (av) = 1; 2909 AvMAX (av) = 1;
2289 AvFILLp (av) = 0; 2910 AvFILLp (av) = 0;
2290 ary [0] = newSViv (count); 2911 ary [0] = newSViv (count);
2291 2912
2292 return newRV_noinc ((SV *)av); 2913 return newRV_noinc ((SV *)av);
… …
2330 SvREFCNT_dec (cb); 2951 SvREFCNT_dec (cb);
2331 } 2952 }
2332} 2953}
2333 2954
2334static void 2955static void
2335coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2956coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2336{ 2957{
2337 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2958 /* call $sem->adjust (0) to possibly wake up some other waiters */
2338 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2959 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2339} 2960}
2340 2961
2341static int 2962static int
2342slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2963slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2343{ 2964{
2344 AV *av = (AV *)frame->data; 2965 AV *av = (AV *)frame->data;
2345 SV *count_sv = AvARRAY (av)[0]; 2966 SV *count_sv = AvARRAY (av)[0];
2967 SV *coro_hv = SvRV (coro_current);
2968
2969 frame->destroy = 0;
2346 2970
2347 /* if we are about to throw, don't actually acquire the lock, just throw */ 2971 /* if we are about to throw, don't actually acquire the lock, just throw */
2348 if (CORO_THROW) 2972 if (ecb_expect_false (CORO_THROW))
2973 {
2974 /* we still might be responsible for the semaphore, so wake up others */
2975 coro_semaphore_adjust (aTHX_ av, 0);
2976
2349 return 0; 2977 return 0;
2978 }
2350 else if (SvIVX (count_sv) > 0) 2979 else if (SvIVX (count_sv) > 0)
2351 { 2980 {
2352 SvSTATE_current->on_destroy = 0;
2353
2354 if (acquire) 2981 if (acquire)
2355 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2982 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2356 else 2983 else
2357 coro_semaphore_adjust (aTHX_ av, 0); 2984 coro_semaphore_adjust (aTHX_ av, 0);
2358 2985
… …
2362 { 2989 {
2363 int i; 2990 int i;
2364 /* if we were woken up but can't down, we look through the whole */ 2991 /* if we were woken up but can't down, we look through the whole */
2365 /* waiters list and only add us if we aren't in there already */ 2992 /* waiters list and only add us if we aren't in there already */
2366 /* this avoids some degenerate memory usage cases */ 2993 /* this avoids some degenerate memory usage cases */
2367 2994 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2368 for (i = 1; i <= AvFILLp (av); ++i)
2369 if (AvARRAY (av)[i] == SvRV (coro_current)) 2995 if (AvARRAY (av)[i] == coro_hv)
2370 return 1; 2996 return 1;
2371 2997
2372 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2998 av_push (av, SvREFCNT_inc (coro_hv));
2373 return 1; 2999 return 1;
2374 } 3000 }
2375} 3001}
2376 3002
2377static int 3003static int
… …
2400 { 3026 {
2401 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 3027 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2402 3028
2403 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 3029 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2404 frame->prepare = prepare_schedule; 3030 frame->prepare = prepare_schedule;
2405
2406 /* to avoid race conditions when a woken-up coro gets terminated */ 3031 /* to avoid race conditions when a woken-up coro gets terminated */
2407 /* we arrange for a temporary on_destroy that calls adjust (0) */ 3032 /* we arrange for a temporary on_destroy that calls adjust (0) */
2408 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 3033 frame->destroy = coro_semaphore_destroy;
2409 } 3034 }
2410} 3035}
2411 3036
2412static void 3037static void
2413slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3038slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2421{ 3046{
2422 if (items >= 2) 3047 if (items >= 2)
2423 { 3048 {
2424 /* callback form */ 3049 /* callback form */
2425 AV *av = (AV *)SvRV (arg [0]); 3050 AV *av = (AV *)SvRV (arg [0]);
2426 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3051 SV *cb_cv = s_get_cv_croak (arg [1]);
2427 3052
2428 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 3053 av_push (av, SvREFCNT_inc_NN (cb_cv));
2429 3054
2430 if (SvIVX (AvARRAY (av)[0]) > 0) 3055 if (SvIVX (AvARRAY (av)[0]) > 0)
2431 coro_semaphore_adjust (aTHX_ av, 0); 3056 coro_semaphore_adjust (aTHX_ av, 0);
2432 3057
2433 frame->prepare = prepare_nop; 3058 frame->prepare = prepare_nop;
… …
2457 AvARRAY (av)[0] = AvARRAY (av)[1]; 3082 AvARRAY (av)[0] = AvARRAY (av)[1];
2458 AvARRAY (av)[1] = cb; 3083 AvARRAY (av)[1] = cb;
2459 3084
2460 cb = av_shift (av); 3085 cb = av_shift (av);
2461 3086
3087 if (SvTYPE (cb) == SVt_PVCV)
3088 {
3089 dSP;
3090 PUSHMARK (SP);
3091 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
3092 PUTBACK;
3093 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
3094 }
3095 else
3096 {
2462 api_ready (aTHX_ cb); 3097 api_ready (aTHX_ cb);
2463 sv_setiv (cb, 0); /* signal waiter */ 3098 sv_setiv (cb, 0); /* signal waiter */
3099 }
3100
2464 SvREFCNT_dec (cb); 3101 SvREFCNT_dec (cb);
2465 3102
2466 --count; 3103 --count;
2467 } 3104 }
2468} 3105}
… …
2477static void 3114static void
2478slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 3115slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2479{ 3116{
2480 AV *av = (AV *)SvRV (arg [0]); 3117 AV *av = (AV *)SvRV (arg [0]);
2481 3118
3119 if (items >= 2)
3120 {
3121 SV *cb_cv = s_get_cv_croak (arg [1]);
3122 av_push (av, SvREFCNT_inc_NN (cb_cv));
3123
2482 if (SvIVX (AvARRAY (av)[0])) 3124 if (SvIVX (AvARRAY (av)[0]))
3125 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
3126
3127 frame->prepare = prepare_nop;
3128 frame->check = slf_check_nop;
3129 }
3130 else if (SvIVX (AvARRAY (av)[0]))
2483 { 3131 {
2484 SvIVX (AvARRAY (av)[0]) = 0; 3132 SvIVX (AvARRAY (av)[0]) = 0;
2485 frame->prepare = prepare_nop; 3133 frame->prepare = prepare_nop;
2486 frame->check = slf_check_nop; 3134 frame->check = slf_check_nop;
2487 } 3135 }
2488 else 3136 else
2489 { 3137 {
2490 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 3138 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2491 3139
2492 av_push (av, waiter); 3140 av_push (av, waiter);
2493 3141
2494 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3142 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2495 frame->prepare = prepare_schedule; 3143 frame->prepare = prepare_schedule;
… …
2513 3161
2514static void 3162static void
2515coro_aio_callback (pTHX_ CV *cv) 3163coro_aio_callback (pTHX_ CV *cv)
2516{ 3164{
2517 dXSARGS; 3165 dXSARGS;
2518 AV *state = (AV *)GENSUB_ARG; 3166 AV *state = (AV *)S_GENSUB_ARG;
2519 SV *coro = av_pop (state); 3167 SV *coro = av_pop (state);
2520 SV *data_sv = newSV (sizeof (struct io_state)); 3168 SV *data_sv = newSV (sizeof (struct io_state));
2521 3169
2522 av_extend (state, items - 1); 3170 av_extend (state, items - 1);
2523 3171
… …
2559 /* it quickly returns */ 3207 /* it quickly returns */
2560 if (CORO_THROW) 3208 if (CORO_THROW)
2561 return 0; 3209 return 0;
2562 3210
2563 /* one element that is an RV? repeat! */ 3211 /* one element that is an RV? repeat! */
2564 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3212 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
2565 return 1; 3213 return 1;
2566 3214
2567 /* restore status */ 3215 /* restore status */
2568 { 3216 {
2569 SV *data_sv = av_pop (state); 3217 SV *data_sv = av_pop (state);
… …
2608 dSP; 3256 dSP;
2609 3257
2610 static SV *prio_cv; 3258 static SV *prio_cv;
2611 static SV *prio_sv; 3259 static SV *prio_sv;
2612 3260
2613 if (expect_false (!prio_cv)) 3261 if (ecb_expect_false (!prio_cv))
2614 { 3262 {
2615 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3263 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2616 prio_sv = newSViv (0); 3264 prio_sv = newSViv (0);
2617 } 3265 }
2618 3266
… …
2637 3285
2638 for (i = 0; i < items; ++i) 3286 for (i = 0; i < items; ++i)
2639 PUSHs (arg [i]); 3287 PUSHs (arg [i]);
2640 3288
2641 /* now push the callback closure */ 3289 /* now push the callback closure */
2642 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3290 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2643 3291
2644 /* now call the AIO function - we assume our request is uncancelable */ 3292 /* now call the AIO function - we assume our request is uncancelable */
2645 PUTBACK; 3293 PUTBACK;
2646 call_sv ((SV *)req, G_VOID | G_DISCARD); 3294 call_sv ((SV *)req, G_VOID | G_DISCARD);
2647 } 3295 }
2648 3296
2649 /* now that the requets is going, we loop toll we have a result */ 3297 /* now that the request is going, we loop till we have a result */
2650 frame->data = (void *)state; 3298 frame->data = (void *)state;
2651 frame->prepare = prepare_schedule; 3299 frame->prepare = prepare_schedule;
2652 frame->check = slf_check_aio_req; 3300 frame->check = slf_check_aio_req;
2653} 3301}
2654 3302
… …
2662 XSRETURN_EMPTY; 3310 XSRETURN_EMPTY;
2663} 3311}
2664 3312
2665/*****************************************************************************/ 3313/*****************************************************************************/
2666 3314
3315#if CORO_CLONE
3316# include "clone.c"
3317#endif
3318
3319/*****************************************************************************/
3320
3321static SV *
3322coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3323{
3324 SV *coro_sv;
3325 struct coro *coro;
3326 MAGIC *mg;
3327 HV *hv;
3328 SV *cb;
3329 int i;
3330
3331 if (argc > 0)
3332 {
3333 cb = s_get_cv_croak (argv [0]);
3334
3335 if (!is_coro)
3336 {
3337 if (CvISXSUB (cb))
3338 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3339
3340 if (!CvROOT (cb))
3341 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3342 }
3343 }
3344
3345 Newz (0, coro, 1, struct coro);
3346 coro->args = newAV ();
3347 coro->flags = CF_NEW;
3348
3349 if (coro_first) coro_first->prev = coro;
3350 coro->next = coro_first;
3351 coro_first = coro;
3352
3353 coro->hv = hv = newHV ();
3354 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3355 mg->mg_flags |= MGf_DUP;
3356 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3357
3358 if (argc > 0)
3359 {
3360 av_extend (coro->args, argc + is_coro - 1);
3361
3362 if (is_coro)
3363 {
3364 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3365 cb = (SV *)cv_coro_run;
3366 }
3367
3368 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3369
3370 for (i = 1; i < argc; i++)
3371 av_push (coro->args, newSVsv (argv [i]));
3372 }
3373
3374 return coro_sv;
3375}
3376
3377#ifndef __cplusplus
3378ecb_cold XS(boot_Coro__State);
3379#endif
3380
3381#if CORO_JIT
3382
3383static void ecb_noinline ecb_cold
3384pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3385{
3386 dSP;
3387 AV *av = newAV ();
3388
3389 av_store (av, 3, newSVuv (d));
3390 av_store (av, 2, newSVuv (c));
3391 av_store (av, 1, newSVuv (b));
3392 av_store (av, 0, newSVuv (a));
3393
3394 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3395
3396 PUTBACK;
3397}
3398
3399static void ecb_noinline ecb_cold
3400jit_init (pTHX)
3401{
3402 dSP;
3403 SV *load, *save;
3404 char *map_base;
3405 char *load_ptr, *save_ptr;
3406 STRLEN load_len, save_len, map_len;
3407 int count;
3408
3409 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3410
3411 PUSHMARK (SP);
3412 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3413 #include "state.h"
3414 count = call_pv ("Coro::State::_jit", G_ARRAY);
3415 SPAGAIN;
3416
3417 save = POPs; save_ptr = SvPVbyte (save, save_len);
3418 load = POPs; load_ptr = SvPVbyte (load, load_len);
3419
3420 map_len = load_len + save_len + 16;
3421
3422 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3423
3424 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3425
3426 load_perl_slots = (load_save_perl_slots_type)map_base;
3427 memcpy (map_base, load_ptr, load_len);
3428
3429 map_base += (load_len + 15) & ~15;
3430
3431 save_perl_slots = (load_save_perl_slots_type)map_base;
3432 memcpy (map_base, save_ptr, save_len);
3433
3434 /* we are good citizens and try to make the page read-only, so the evil evil */
3435 /* hackers might have it a bit more difficult */
3436 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3437
3438 PUTBACK;
3439 eval_pv ("undef &Coro::State::_jit", 1);
3440}
3441
3442#endif
3443
2667MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3444MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2668 3445
2669PROTOTYPES: DISABLE 3446PROTOTYPES: DISABLE
2670 3447
2671BOOT: 3448BOOT:
2672{ 3449{
3450#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
3451#include "state.h"
2673#ifdef USE_ITHREADS 3452#ifdef USE_ITHREADS
2674# if CORO_PTHREAD 3453# if CORO_PTHREAD
2675 coro_thx = PERL_GET_CONTEXT; 3454 coro_thx = PERL_GET_CONTEXT;
2676# endif 3455# endif
2677#endif 3456#endif
2678 BOOT_PAGESIZE; 3457 /* perl defines these to check for existance first, but why it doesn't */
3458 /* just create them one at init time is not clear to me, except for */
3459 /* programs trying to delete them, but... */
3460 /* anyway, we declare this as invalid and make sure they are initialised here */
3461 DEFSV;
3462 ERRSV;
3463
3464 cctx_current = cctx_new_empty ();
2679 3465
2680 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3466 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2681 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3467 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2682 3468
2683 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3469 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
… …
2703 3489
2704 { 3490 {
2705 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3491 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2706 3492
2707 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3493 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2708 hv_store_ent (PL_custom_op_names, slf, 3494 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2709 newSVpv ("coro_slf", 0), 0);
2710 3495
2711 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3496 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2712 hv_store_ent (PL_custom_op_descs, slf, 3497 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2713 newSVpv ("coro schedule like function", 0), 0);
2714 } 3498 }
2715 3499
2716 coroapi.ver = CORO_API_VERSION; 3500 coroapi.ver = CORO_API_VERSION;
2717 coroapi.rev = CORO_API_REVISION; 3501 coroapi.rev = CORO_API_REVISION;
2718 3502
… …
2723 coroapi.prepare_nop = prepare_nop; 3507 coroapi.prepare_nop = prepare_nop;
2724 coroapi.prepare_schedule = prepare_schedule; 3508 coroapi.prepare_schedule = prepare_schedule;
2725 coroapi.prepare_cede = prepare_cede; 3509 coroapi.prepare_cede = prepare_cede;
2726 coroapi.prepare_cede_notself = prepare_cede_notself; 3510 coroapi.prepare_cede_notself = prepare_cede_notself;
2727 3511
2728 { 3512 time_init (aTHX);
2729 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2730 3513
2731 if (!svp) croak ("Time::HiRes is required");
2732 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2733
2734 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2735 }
2736
2737 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3514 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3515#if CORO_JIT
3516 PUTBACK;
3517 jit_init (aTHX);
3518 SPAGAIN;
3519#endif
2738} 3520}
2739 3521
2740SV * 3522SV *
2741new (char *klass, ...) 3523new (SV *klass, ...)
2742 ALIAS: 3524 ALIAS:
2743 Coro::new = 1 3525 Coro::new = 1
2744 CODE: 3526 CODE:
2745{ 3527 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2746 struct coro *coro; 3528 OUTPUT:
2747 MAGIC *mg;
2748 HV *hv;
2749 CV *cb;
2750 int i;
2751
2752 if (items > 1)
2753 {
2754 cb = coro_sv_2cv (aTHX_ ST (1));
2755
2756 if (!ix)
2757 {
2758 if (CvISXSUB (cb))
2759 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2760
2761 if (!CvROOT (cb))
2762 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2763 }
2764 }
2765
2766 Newz (0, coro, 1, struct coro);
2767 coro->args = newAV ();
2768 coro->flags = CF_NEW;
2769
2770 if (coro_first) coro_first->prev = coro;
2771 coro->next = coro_first;
2772 coro_first = coro;
2773
2774 coro->hv = hv = newHV ();
2775 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2776 mg->mg_flags |= MGf_DUP;
2777 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2778
2779 if (items > 1)
2780 {
2781 av_extend (coro->args, items - 1 + ix - 1);
2782
2783 if (ix)
2784 {
2785 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2786 cb = cv_coro_run;
2787 }
2788
2789 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2790
2791 for (i = 2; i < items; i++)
2792 av_push (coro->args, newSVsv (ST (i)));
2793 }
2794}
2795 OUTPUT:
2796 RETVAL 3529 RETVAL
2797 3530
2798void 3531void
2799transfer (...) 3532transfer (...)
2800 PROTOTYPE: $$ 3533 PROTOTYPE: $$
2801 CODE: 3534 CODE:
2802 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3535 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2803 3536
2804bool 3537SV *
2805_destroy (SV *coro_sv) 3538clone (Coro::State coro)
2806 CODE: 3539 CODE:
2807 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 3540{
3541#if CORO_CLONE
3542 struct coro *ncoro = coro_clone (aTHX_ coro);
3543 MAGIC *mg;
3544 /* TODO: too much duplication */
3545 ncoro->hv = newHV ();
3546 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3547 mg->mg_flags |= MGf_DUP;
3548 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3549#else
3550 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3551#endif
3552}
2808 OUTPUT: 3553 OUTPUT:
2809 RETVAL 3554 RETVAL
2810
2811void
2812_exit (int code)
2813 PROTOTYPE: $
2814 CODE:
2815 _exit (code);
2816 3555
2817int 3556int
2818cctx_stacksize (int new_stacksize = 0) 3557cctx_stacksize (int new_stacksize = 0)
2819 PROTOTYPE: ;$ 3558 PROTOTYPE: ;$
2820 CODE: 3559 CODE:
… …
2856void 3595void
2857list () 3596list ()
2858 PROTOTYPE: 3597 PROTOTYPE:
2859 PPCODE: 3598 PPCODE:
2860{ 3599{
2861 struct coro *coro; 3600 struct coro *coro;
2862 for (coro = coro_first; coro; coro = coro->next) 3601 for (coro = coro_first; coro; coro = coro->next)
2863 if (coro->hv) 3602 if (coro->hv)
2864 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3603 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
2865} 3604}
2866 3605
… …
2870 eval = 1 3609 eval = 1
2871 CODE: 3610 CODE:
2872{ 3611{
2873 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3612 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2874 { 3613 {
2875 struct coro temp; 3614 struct coro *current = SvSTATE_current;
3615 struct CoroSLF slf_save;
2876 3616
2877 if (!(coro->flags & CF_RUNNING)) 3617 if (current != coro)
2878 { 3618 {
2879 PUTBACK; 3619 PUTBACK;
2880 save_perl (aTHX_ &temp); 3620 save_perl (aTHX_ current);
2881 load_perl (aTHX_ coro); 3621 load_perl (aTHX_ coro);
3622 /* the coro is most likely in an active SLF call.
3623 * while not strictly required (the code we execute is
3624 * not allowed to call any SLF functions), it's cleaner
3625 * to reinitialise the slf_frame and restore it later.
3626 * This might one day allow us to actually do SLF calls
3627 * from code executed here.
3628 */
3629 slf_save = slf_frame;
3630 slf_frame.prepare = 0;
3631 SPAGAIN;
2882 } 3632 }
2883 3633
2884 {
2885 dSP;
2886 ENTER;
2887 SAVETMPS;
2888 PUTBACK;
2889 PUSHSTACK; 3634 PUSHSTACK;
3635
2890 PUSHMARK (SP); 3636 PUSHMARK (SP);
3637 PUTBACK;
2891 3638
2892 if (ix) 3639 if (ix)
2893 eval_sv (coderef, 0); 3640 eval_sv (coderef, 0);
2894 else 3641 else
2895 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3642 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2896 3643
2897 POPSTACK; 3644 POPSTACK;
2898 SPAGAIN; 3645 SPAGAIN;
2899 FREETMPS;
2900 LEAVE;
2901 PUTBACK;
2902 }
2903 3646
2904 if (!(coro->flags & CF_RUNNING)) 3647 if (current != coro)
2905 { 3648 {
3649 PUTBACK;
3650 slf_frame = slf_save;
2906 save_perl (aTHX_ coro); 3651 save_perl (aTHX_ coro);
2907 load_perl (aTHX_ &temp); 3652 load_perl (aTHX_ current);
2908 SPAGAIN; 3653 SPAGAIN;
2909 } 3654 }
2910 } 3655 }
2911} 3656}
2912 3657
… …
2915 PROTOTYPE: $ 3660 PROTOTYPE: $
2916 ALIAS: 3661 ALIAS:
2917 is_ready = CF_READY 3662 is_ready = CF_READY
2918 is_running = CF_RUNNING 3663 is_running = CF_RUNNING
2919 is_new = CF_NEW 3664 is_new = CF_NEW
2920 is_destroyed = CF_DESTROYED 3665 is_destroyed = CF_ZOMBIE
3666 is_zombie = CF_ZOMBIE
3667 is_suspended = CF_SUSPENDED
2921 CODE: 3668 CODE:
2922 RETVAL = boolSV (coro->flags & ix); 3669 RETVAL = boolSV (coro->flags & ix);
2923 OUTPUT: 3670 OUTPUT:
2924 RETVAL 3671 RETVAL
2925 3672
2926void 3673void
2927throw (Coro::State self, SV *throw = &PL_sv_undef) 3674throw (SV *self, SV *exception = &PL_sv_undef)
2928 PROTOTYPE: $;$ 3675 PROTOTYPE: $;$
2929 CODE: 3676 CODE:
2930{ 3677{
3678 struct coro *coro = SvSTATE (self);
2931 struct coro *current = SvSTATE_current; 3679 struct coro *current = SvSTATE_current;
2932 SV **throwp = self == current ? &CORO_THROW : &self->except; 3680 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
2933 SvREFCNT_dec (*throwp); 3681 SvREFCNT_dec (*exceptionp);
2934 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3682 SvGETMAGIC (exception);
3683 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3684
3685 api_ready (aTHX_ self);
2935} 3686}
2936 3687
2937void 3688void
2938api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3689api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2939 PROTOTYPE: $;$ 3690 PROTOTYPE: $;$
… …
2941 3692
2942SV * 3693SV *
2943has_cctx (Coro::State coro) 3694has_cctx (Coro::State coro)
2944 PROTOTYPE: $ 3695 PROTOTYPE: $
2945 CODE: 3696 CODE:
2946 RETVAL = boolSV (!!coro->cctx); 3697 /* maybe manage the running flag differently */
3698 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2947 OUTPUT: 3699 OUTPUT:
2948 RETVAL 3700 RETVAL
2949 3701
2950int 3702int
2951is_traced (Coro::State coro) 3703is_traced (Coro::State coro)
… …
2971 3723
2972void 3724void
2973force_cctx () 3725force_cctx ()
2974 PROTOTYPE: 3726 PROTOTYPE:
2975 CODE: 3727 CODE:
2976 SvSTATE_current->cctx->idle_sp = 0; 3728 cctx_current->idle_sp = 0;
2977 3729
2978void 3730void
2979swap_defsv (Coro::State self) 3731swap_defsv (Coro::State self)
2980 PROTOTYPE: $ 3732 PROTOTYPE: $
2981 ALIAS: 3733 ALIAS:
… …
2989 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3741 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2990 3742
2991 SV *tmp = *src; *src = *dst; *dst = tmp; 3743 SV *tmp = *src; *src = *dst; *dst = tmp;
2992 } 3744 }
2993 3745
3746void
3747cancel (Coro::State self)
3748 CODE:
3749 coro_state_destroy (aTHX_ self);
3750
3751SV *
3752enable_times (int enabled = enable_times)
3753 CODE:
3754{
3755 RETVAL = boolSV (enable_times);
3756
3757 if (enabled != enable_times)
3758 {
3759 enable_times = enabled;
3760
3761 coro_times_update ();
3762 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3763 }
3764}
3765 OUTPUT:
3766 RETVAL
3767
3768void
3769times (Coro::State self)
3770 PPCODE:
3771{
3772 struct coro *current = SvSTATE (coro_current);
3773
3774 if (ecb_expect_false (current == self))
3775 {
3776 coro_times_update ();
3777 coro_times_add (SvSTATE (coro_current));
3778 }
3779
3780 EXTEND (SP, 2);
3781 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3782 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3783
3784 if (ecb_expect_false (current == self))
3785 coro_times_sub (SvSTATE (coro_current));
3786}
3787
3788void
3789swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3790 CODE:
3791{
3792 struct coro *current = SvSTATE_current;
3793
3794 if (current == coro)
3795 SWAP_SVS (current);
3796
3797 if (!coro->swap_sv)
3798 coro->swap_sv = newAV ();
3799
3800 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3801 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3802
3803 if (current == coro)
3804 SWAP_SVS (current);
3805}
3806
2994 3807
2995MODULE = Coro::State PACKAGE = Coro 3808MODULE = Coro::State PACKAGE = Coro
2996 3809
2997BOOT: 3810BOOT:
2998{ 3811{
2999 int i;
3000
3001 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3002 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3812 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3003 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3813 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3004 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3814 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3005 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3006 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3815 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3816 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3817 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3818 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3819 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3007 3820
3008 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3821 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3009 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3822 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3010 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3823 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3011 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3824 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3012 3825
3013 coro_stash = gv_stashpv ("Coro", TRUE); 3826 coro_stash = gv_stashpv ("Coro", TRUE);
3014 3827
3015 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3828 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3016 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3829 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3017 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3830 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3018 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3831 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3019 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3832 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3020 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3833 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3021
3022 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3023 coro_ready[i] = newAV ();
3024 3834
3025 { 3835 {
3026 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3836 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3027 3837
3028 coroapi.schedule = api_schedule; 3838 coroapi.schedule = api_schedule;
… …
3038 sv_setiv (sv, (IV)&coroapi); 3848 sv_setiv (sv, (IV)&coroapi);
3039 SvREADONLY_on (sv); 3849 SvREADONLY_on (sv);
3040 } 3850 }
3041} 3851}
3042 3852
3853SV *
3854async (...)
3855 PROTOTYPE: &@
3856 CODE:
3857 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3858 api_ready (aTHX_ RETVAL);
3859 OUTPUT:
3860 RETVAL
3861
3862void
3863_destroy (Coro::State coro)
3864 CODE:
3865 /* used by the manager thread */
3866 coro_state_destroy (aTHX_ coro);
3867
3868void
3869on_destroy (Coro::State coro, SV *cb)
3870 CODE:
3871 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3872
3873void
3874join (...)
3875 CODE:
3876 CORO_EXECUTE_SLF_XS (slf_init_join);
3877
3878void
3879terminate (...)
3880 CODE:
3881 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3882
3883void
3884cancel (...)
3885 CODE:
3886 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3887
3888int
3889safe_cancel (Coro::State self, ...)
3890 C_ARGS: aTHX_ self, &ST (1), items - 1
3891
3043void 3892void
3044schedule (...) 3893schedule (...)
3045 CODE: 3894 CODE:
3046 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3895 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3047 3896
… …
3075void 3924void
3076_set_readyhook (SV *hook) 3925_set_readyhook (SV *hook)
3077 PROTOTYPE: $ 3926 PROTOTYPE: $
3078 CODE: 3927 CODE:
3079 SvREFCNT_dec (coro_readyhook); 3928 SvREFCNT_dec (coro_readyhook);
3929 SvGETMAGIC (hook);
3930 if (SvOK (hook))
3931 {
3080 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3932 coro_readyhook = newSVsv (hook);
3933 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3934 }
3935 else
3936 {
3937 coro_readyhook = 0;
3938 CORO_READYHOOK = 0;
3939 }
3081 3940
3082int 3941int
3083prio (Coro::State coro, int newprio = 0) 3942prio (Coro::State coro, int newprio = 0)
3084 PROTOTYPE: $;$ 3943 PROTOTYPE: $;$
3085 ALIAS: 3944 ALIAS:
… …
3091 if (items > 1) 3950 if (items > 1)
3092 { 3951 {
3093 if (ix) 3952 if (ix)
3094 newprio = coro->prio - newprio; 3953 newprio = coro->prio - newprio;
3095 3954
3096 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3955 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3097 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3956 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3098 3957
3099 coro->prio = newprio; 3958 coro->prio = newprio;
3100 } 3959 }
3101} 3960}
3102 OUTPUT: 3961 OUTPUT:
… …
3117 RETVAL = coro_nready; 3976 RETVAL = coro_nready;
3118 OUTPUT: 3977 OUTPUT:
3119 RETVAL 3978 RETVAL
3120 3979
3121void 3980void
3981suspend (Coro::State self)
3982 PROTOTYPE: $
3983 CODE:
3984 self->flags |= CF_SUSPENDED;
3985
3986void
3987resume (Coro::State self)
3988 PROTOTYPE: $
3989 CODE:
3990 self->flags &= ~CF_SUSPENDED;
3991
3992void
3122_pool_handler (...) 3993_pool_handler (...)
3123 CODE: 3994 CODE:
3124 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3995 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3125 3996
3126void 3997void
… …
3137 for (i = 1; i < items; ++i) 4008 for (i = 1; i < items; ++i)
3138 av_push (av, SvREFCNT_inc_NN (ST (i))); 4009 av_push (av, SvREFCNT_inc_NN (ST (i)));
3139 4010
3140 if ((SV *)hv == &PL_sv_undef) 4011 if ((SV *)hv == &PL_sv_undef)
3141 { 4012 {
3142 PUSHMARK (SP); 4013 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3143 EXTEND (SP, 2);
3144 PUSHs (sv_Coro);
3145 PUSHs ((SV *)cv_pool_handler);
3146 PUTBACK;
3147 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3148 SPAGAIN;
3149
3150 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 4014 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4015 SvREFCNT_dec (sv);
3151 } 4016 }
3152 4017
3153 { 4018 {
3154 struct coro *coro = SvSTATE_hv (hv); 4019 struct coro *coro = SvSTATE_hv (hv);
3155 4020
… …
3179rouse_wait (...) 4044rouse_wait (...)
3180 PROTOTYPE: ;$ 4045 PROTOTYPE: ;$
3181 PPCODE: 4046 PPCODE:
3182 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 4047 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3183 4048
4049void
4050on_enter (SV *block)
4051 ALIAS:
4052 on_leave = 1
4053 PROTOTYPE: &
4054 CODE:
4055{
4056 struct coro *coro = SvSTATE_current;
4057 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4058
4059 block = s_get_cv_croak (block);
4060
4061 if (!*avp)
4062 *avp = newAV ();
4063
4064 av_push (*avp, SvREFCNT_inc (block));
4065
4066 if (!ix)
4067 on_enterleave_call (aTHX_ block);
4068
4069 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4070 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
4071 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
4072}
4073
3184 4074
3185MODULE = Coro::State PACKAGE = PerlIO::cede 4075MODULE = Coro::State PACKAGE = PerlIO::cede
3186 4076
3187BOOT: 4077BOOT:
3188 PerlIO_define_layer (aTHX_ &PerlIO_cede); 4078 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3191MODULE = Coro::State PACKAGE = Coro::Semaphore 4081MODULE = Coro::State PACKAGE = Coro::Semaphore
3192 4082
3193SV * 4083SV *
3194new (SV *klass, SV *count = 0) 4084new (SV *klass, SV *count = 0)
3195 CODE: 4085 CODE:
4086{
4087 int semcnt = 1;
4088
4089 if (count)
4090 {
4091 SvGETMAGIC (count);
4092
4093 if (SvOK (count))
4094 semcnt = SvIV (count);
4095 }
4096
3196 RETVAL = sv_bless ( 4097 RETVAL = sv_bless (
3197 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 4098 coro_waitarray_new (aTHX_ semcnt),
3198 GvSTASH (CvGV (cv)) 4099 GvSTASH (CvGV (cv))
3199 ); 4100 );
4101}
3200 OUTPUT: 4102 OUTPUT:
3201 RETVAL 4103 RETVAL
3202 4104
3203# helper for Coro::Channel 4105# helper for Coro::Channel and others
3204SV * 4106SV *
3205_alloc (int count) 4107_alloc (int count)
3206 CODE: 4108 CODE:
3207 RETVAL = coro_waitarray_new (aTHX_ count); 4109 RETVAL = coro_waitarray_new (aTHX_ count);
3208 OUTPUT: 4110 OUTPUT:
… …
3250 XSRETURN_NO; 4152 XSRETURN_NO;
3251} 4153}
3252 4154
3253void 4155void
3254waiters (SV *self) 4156waiters (SV *self)
3255 PPCODE: 4157 PPCODE:
3256{ 4158{
3257 AV *av = (AV *)SvRV (self); 4159 AV *av = (AV *)SvRV (self);
3258 int wcount = AvFILLp (av) + 1 - 1; 4160 int wcount = AvFILLp (av) + 1 - 1;
3259 4161
3260 if (GIMME_V == G_SCALAR) 4162 if (GIMME_V == G_SCALAR)
… …
3266 for (i = 1; i <= wcount; ++i) 4168 for (i = 1; i <= wcount; ++i)
3267 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 4169 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3268 } 4170 }
3269} 4171}
3270 4172
4173MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4174
4175void
4176_may_delete (SV *sem, int count, unsigned int extra_refs)
4177 PPCODE:
4178{
4179 AV *av = (AV *)SvRV (sem);
4180
4181 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4182 && AvFILLp (av) == 0 /* no waiters, just count */
4183 && SvIV (AvARRAY (av)[0]) == count)
4184 XSRETURN_YES;
4185
4186 XSRETURN_NO;
4187}
4188
3271MODULE = Coro::State PACKAGE = Coro::Signal 4189MODULE = Coro::State PACKAGE = Coro::Signal
3272 4190
3273SV * 4191SV *
3274new (SV *klass) 4192new (SV *klass)
3275 CODE: 4193 CODE:
… …
3287 4205
3288void 4206void
3289broadcast (SV *self) 4207broadcast (SV *self)
3290 CODE: 4208 CODE:
3291{ 4209{
3292 AV *av = (AV *)SvRV (self); 4210 AV *av = (AV *)SvRV (self);
3293 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4211 coro_signal_wake (aTHX_ av, AvFILLp (av));
3294} 4212}
3295 4213
3296void 4214void
3297send (SV *self) 4215send (SV *self)
… …
3305 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4223 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3306} 4224}
3307 4225
3308IV 4226IV
3309awaited (SV *self) 4227awaited (SV *self)
3310 CODE: 4228 CODE:
3311 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4229 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3312 OUTPUT: 4230 OUTPUT:
3313 RETVAL 4231 RETVAL
3314 4232
3315 4233
… …
3320 4238
3321void 4239void
3322_schedule (...) 4240_schedule (...)
3323 CODE: 4241 CODE:
3324{ 4242{
3325 static int incede; 4243 static int incede;
3326 4244
3327 api_cede_notself (aTHX); 4245 api_cede_notself (aTHX);
3328 4246
3329 ++incede; 4247 ++incede;
3330 while (coro_nready >= incede && api_cede (aTHX)) 4248 while (coro_nready >= incede && api_cede (aTHX))
… …
3346 4264
3347void 4265void
3348_register (char *target, char *proto, SV *req) 4266_register (char *target, char *proto, SV *req)
3349 CODE: 4267 CODE:
3350{ 4268{
3351 CV *req_cv = coro_sv_2cv (aTHX_ req); 4269 SV *req_cv = s_get_cv_croak (req);
3352 /* newXSproto doesn't return the CV on 5.8 */ 4270 /* newXSproto doesn't return the CV on 5.8 */
3353 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4271 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3354 sv_setpv ((SV *)slf_cv, proto); 4272 sv_setpv ((SV *)slf_cv, proto);
3355 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4273 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3356} 4274}
3357 4275
4276MODULE = Coro::State PACKAGE = Coro::Select
4277
4278void
4279patch_pp_sselect ()
4280 CODE:
4281 if (!coro_old_pp_sselect)
4282 {
4283 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4284 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4285 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4286 }
4287
4288void
4289unpatch_pp_sselect ()
4290 CODE:
4291 if (coro_old_pp_sselect)
4292 {
4293 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4294 coro_old_pp_sselect = 0;
4295 }
4296
4297MODULE = Coro::State PACKAGE = Coro::Util
4298
4299void
4300_exit (int code)
4301 CODE:
4302 _exit (code);
4303
4304NV
4305time ()
4306 CODE:
4307 RETVAL = nvtime (aTHX);
4308 OUTPUT:
4309 RETVAL
4310
4311NV
4312gettimeofday ()
4313 PPCODE:
4314{
4315 UV tv [2];
4316 u2time (aTHX_ tv);
4317 EXTEND (SP, 2);
4318 PUSHs (sv_2mortal (newSVuv (tv [0])));
4319 PUSHs (sv_2mortal (newSVuv (tv [1])));
4320}
4321

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