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Comparing Coro/Coro/State.xs (file contents):
Revision 1.377 by root, Sat Oct 3 17:55:04 2009 UTC vs.
Revision 1.391 by root, Thu Mar 31 04:24:19 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
1#define NDEBUG 1 4#define NDEBUG 1
2 5
3#include "libcoro/coro.c" 6#include "libcoro/coro.c"
4 7
5#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
18 21
19#ifndef SVs_PADSTALE 22#ifndef SVs_PADSTALE
20# define SVs_PADSTALE 0 23# define SVs_PADSTALE 0
21#endif 24#endif
22 25
23#ifdef WIN32 26#if defined(_WIN32)
27# undef HAS_GETTIMEOFDAY
24# undef setjmp 28# undef setjmp
25# undef longjmp 29# undef longjmp
26# undef _exit 30# undef _exit
27# define setjmp _setjmp /* deep magic */ 31# define setjmp _setjmp /* deep magic */
28#else 32#else
237 CV *startcv; /* the CV to execute */ 241 CV *startcv; /* the CV to execute */
238 AV *args; /* data associated with this coroutine (initial args) */ 242 AV *args; /* data associated with this coroutine (initial args) */
239 int refcnt; /* coroutines are refcounted, yes */ 243 int refcnt; /* coroutines are refcounted, yes */
240 int flags; /* CF_ flags */ 244 int flags; /* CF_ flags */
241 HV *hv; /* the perl hash associated with this coro, if any */ 245 HV *hv; /* the perl hash associated with this coro, if any */
242 void (*on_destroy)(pTHX_ struct coro *coro); 246 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
243 247
244 /* statistics */ 248 /* statistics */
245 int usecount; /* number of transfers to this coro */ 249 int usecount; /* number of transfers to this coro */
246 250
247 /* coro process data */ 251 /* coro process data */
310 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ 314 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
311 PL_op->op_flags |= OPf_STACKED; 315 PL_op->op_flags |= OPf_STACKED;
312 PL_op->op_private = 0; 316 PL_op->op_private = 0;
313 return PL_ppaddr [OP_ENTERSUB](aTHX); 317 return PL_ppaddr [OP_ENTERSUB](aTHX);
314} 318}
319
320/** time stuff **************************************************************/
321
322#ifdef HAS_GETTIMEOFDAY
323
324static void
325coro_u2time (pTHX_ UV ret[2])
326{
327 struct timeval tv;
328 gettimeofday (&tv, 0);
329
330 ret [0] = tv.tv_sec;
331 ret [1] = tv.tv_usec;
332}
333
334static double
335coro_nvtime ()
336{
337 struct timeval tv;
338 gettimeofday (&tv, 0);
339
340 return tv.tv_sec + tv.tv_usec * 1e-6;
341}
342
343static void
344time_init (pTHX)
345{
346 nvtime = coro_nvtime;
347 u2time = coro_u2time;
348}
349
350#else
351
352static void
353time_init (pTHX)
354{
355 SV **svp;
356
357 require_pv ("Time/HiRes.pm");
358
359 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
360
361 if (!svp) croak ("Time::HiRes is required, but missing.");
362 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
363
364 nvtime = INT2PTR (double (*)(), SvIV (*svp));
365
366 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
367 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
368}
369
370#endif
315 371
316/** lowlevel stuff **********************************************************/ 372/** lowlevel stuff **********************************************************/
317 373
318static SV * 374static SV *
319coro_get_sv (pTHX_ const char *name, int create) 375coro_get_sv (pTHX_ const char *name, int create)
583 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); 639 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
584 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); 640 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
585 641
586#if PERL_VERSION_ATLEAST (5,10,0) 642#if PERL_VERSION_ATLEAST (5,10,0)
587 /* perl 5.10 complicates this _quite_ a bit, but it also is 643 /* perl 5.10 complicates this _quite_ a bit, but it also is
588 * is much faster, so no quarrels here. alternatively, we could 644 * much faster, so no quarrels here. alternatively, we could
589 * sv_upgrade to avoid this. 645 * sv_upgrade to avoid this.
590 */ 646 */
591 { 647 {
592 /* swap sv_u */ 648 /* swap sv_u */
593 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; 649 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
1010 PL_comppad_name_fill = 0; 1066 PL_comppad_name_fill = 0;
1011 PL_comppad_name_floor = 0; 1067 PL_comppad_name_floor = 0;
1012 PL_curpm = 0; 1068 PL_curpm = 0;
1013 PL_curpad = 0; 1069 PL_curpad = 0;
1014 PL_localizing = 0; 1070 PL_localizing = 0;
1015 PL_dirty = 0;
1016 PL_restartop = 0; 1071 PL_restartop = 0;
1017#if PERL_VERSION_ATLEAST (5,10,0) 1072#if PERL_VERSION_ATLEAST (5,10,0)
1018 PL_parser = 0; 1073 PL_parser = 0;
1019#endif 1074#endif
1020 PL_hints = 0; 1075 PL_hints = 0;
1824 { 1879 {
1825 /* nothing to schedule: call the idle handler */ 1880 /* nothing to schedule: call the idle handler */
1826 if (SvROK (sv_idle) 1881 if (SvROK (sv_idle)
1827 && SvOBJECT (SvRV (sv_idle))) 1882 && SvOBJECT (SvRV (sv_idle)))
1828 { 1883 {
1884 if (SvRV (sv_idle) == SvRV (coro_current))
1885 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1886
1829 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1887 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1830 api_ready (aTHX_ SvRV (sv_idle)); 1888 api_ready (aTHX_ SvRV (sv_idle));
1831 --coro_nready; 1889 --coro_nready;
1832 } 1890 }
1833 else 1891 else
1950 2008
1951static void 2009static void
1952coro_call_on_destroy (pTHX_ struct coro *coro) 2010coro_call_on_destroy (pTHX_ struct coro *coro)
1953{ 2011{
1954 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2012 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1955 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1956 2013
1957 if (on_destroyp) 2014 if (on_destroyp)
1958 { 2015 {
1959 AV *on_destroy = (AV *)SvRV (*on_destroyp); 2016 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2017 AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp)));
2018 AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0;
1960 2019
1961 while (AvFILLp (on_destroy) >= 0) 2020 while (AvFILLp (on_destroy) >= 0)
1962 { 2021 {
1963 dSP; /* don't disturb outer sp */ 2022 dSP; /* don't disturb outer sp */
1964 SV *cb = av_pop (on_destroy); 2023 SV *cb = av_pop (on_destroy);
1966 PUSHMARK (SP); 2025 PUSHMARK (SP);
1967 2026
1968 if (statusp) 2027 if (statusp)
1969 { 2028 {
1970 int i; 2029 int i;
1971 AV *status = (AV *)SvRV (*statusp);
1972 EXTEND (SP, AvFILLp (status) + 1); 2030 EXTEND (SP, AvFILLp (status) + 1);
1973 2031
1974 for (i = 0; i <= AvFILLp (status); ++i) 2032 for (i = 0; i <= AvFILLp (status); ++i)
1975 PUSHs (AvARRAY (status)[i]); 2033 PUSHs (AvARRAY (status)[i]);
1976 } 2034 }
2419 if (PL_op->op_flags & OPf_STACKED) 2477 if (PL_op->op_flags & OPf_STACKED)
2420 { 2478 {
2421 if (items > slf_arga) 2479 if (items > slf_arga)
2422 { 2480 {
2423 slf_arga = items; 2481 slf_arga = items;
2424 free (slf_argv); 2482 Safefree (slf_argv);
2425 slf_argv = malloc (slf_arga * sizeof (SV *)); 2483 New (0, slf_argv, slf_arga, SV *);
2426 } 2484 }
2427 2485
2428 slf_argc = items; 2486 slf_argc = items;
2429 2487
2430 for (i = 0; i < items; ++i) 2488 for (i = 0; i < items; ++i)
2791 { 2849 {
2792 SV *cb_cv = s_get_cv_croak (arg [1]); 2850 SV *cb_cv = s_get_cv_croak (arg [1]);
2793 av_push (av, SvREFCNT_inc_NN (cb_cv)); 2851 av_push (av, SvREFCNT_inc_NN (cb_cv));
2794 2852
2795 if (SvIVX (AvARRAY (av)[0])) 2853 if (SvIVX (AvARRAY (av)[0]))
2796 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 2854 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2797 2855
2798 frame->prepare = prepare_nop; 2856 frame->prepare = prepare_nop;
2799 frame->check = slf_check_nop; 2857 frame->check = slf_check_nop;
2800 } 2858 }
2801 else if (SvIVX (AvARRAY (av)[0])) 2859 else if (SvIVX (AvARRAY (av)[0]))
2963 /* now call the AIO function - we assume our request is uncancelable */ 3021 /* now call the AIO function - we assume our request is uncancelable */
2964 PUTBACK; 3022 PUTBACK;
2965 call_sv ((SV *)req, G_VOID | G_DISCARD); 3023 call_sv ((SV *)req, G_VOID | G_DISCARD);
2966 } 3024 }
2967 3025
2968 /* now that the requets is going, we loop toll we have a result */ 3026 /* now that the request is going, we loop till we have a result */
2969 frame->data = (void *)state; 3027 frame->data = (void *)state;
2970 frame->prepare = prepare_schedule; 3028 frame->prepare = prepare_schedule;
2971 frame->check = slf_check_aio_req; 3029 frame->check = slf_check_aio_req;
2972} 3030}
2973 3031
3104 coroapi.prepare_nop = prepare_nop; 3162 coroapi.prepare_nop = prepare_nop;
3105 coroapi.prepare_schedule = prepare_schedule; 3163 coroapi.prepare_schedule = prepare_schedule;
3106 coroapi.prepare_cede = prepare_cede; 3164 coroapi.prepare_cede = prepare_cede;
3107 coroapi.prepare_cede_notself = prepare_cede_notself; 3165 coroapi.prepare_cede_notself = prepare_cede_notself;
3108 3166
3109 { 3167 time_init (aTHX);
3110 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3111
3112 if (!svp) croak ("Time::HiRes is required");
3113 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3114
3115 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3116
3117 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3118 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3119 }
3120 3168
3121 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3169 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3122} 3170}
3123 3171
3124SV * 3172SV *
3272 RETVAL = boolSV (coro->flags & ix); 3320 RETVAL = boolSV (coro->flags & ix);
3273 OUTPUT: 3321 OUTPUT:
3274 RETVAL 3322 RETVAL
3275 3323
3276void 3324void
3277throw (Coro::State self, SV *throw = &PL_sv_undef) 3325throw (Coro::State self, SV *exception = &PL_sv_undef)
3278 PROTOTYPE: $;$ 3326 PROTOTYPE: $;$
3279 CODE: 3327 CODE:
3280{ 3328{
3281 struct coro *current = SvSTATE_current; 3329 struct coro *current = SvSTATE_current;
3282 SV **throwp = self == current ? &CORO_THROW : &self->except; 3330 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3283 SvREFCNT_dec (*throwp); 3331 SvREFCNT_dec (*exceptionp);
3284 SvGETMAGIC (throw); 3332 SvGETMAGIC (exception);
3285 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3333 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3286} 3334}
3287 3335
3288void 3336void
3289api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3337api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3290 PROTOTYPE: $;$ 3338 PROTOTYPE: $;$
3346void 3394void
3347cancel (Coro::State self) 3395cancel (Coro::State self)
3348 CODE: 3396 CODE:
3349 coro_state_destroy (aTHX_ self); 3397 coro_state_destroy (aTHX_ self);
3350 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ 3398 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3351
3352 3399
3353SV * 3400SV *
3354enable_times (int enabled = enable_times) 3401enable_times (int enabled = enable_times)
3355 CODE: 3402 CODE:
3356{ 3403{
3870 { 3917 {
3871 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 3918 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3872 coro_old_pp_sselect = 0; 3919 coro_old_pp_sselect = 0;
3873 } 3920 }
3874 3921
3875

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