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/cvs/Coro/Event/Event.xs
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Comparing Coro/Event/Event.xs (file contents):
Revision 1.3 by root, Fri Aug 17 01:45:39 2001 UTC vs.
Revision 1.14 by root, Fri Dec 1 20:49:54 2006 UTC

1#include "EXTERN.h" 1#include "EXTERN.h"
2#include "perl.h" 2#include "perl.h"
3#include "XSUB.h" 3#include "XSUB.h"
4 4
5#include <assert.h>
5#include <string.h> 6#include <string.h>
6 7
7#include "EventAPI.h" 8#include "EventAPI.h"
8#include "../Coro/CoroAPI.h" 9#include "../Coro/CoroAPI.h"
9 10
10#define CD_CORO 0 11#define CD_CORO 0
11#define CD_TYPE 1 12#define CD_TYPE 1
12#define CD_W 2 13#define CD_OK 2
13#define CD_GOT 3
14#define CD_MAX 3
15/* no support for hits and prio so far. */
16 14
17#define EV_CLASS "Coro::Event::Ev" 15#define CD_HITS 4 /* hardcoded in Coro::Event */
16#define CD_GOT 5 /* hardcoded in Coro::Event, Coro::Handle */
17#define CD_MAX 5
18 18
19static HV *ev_stash; 19static void
20static pe_idle *scheduler; 20coro_std_cb (pe_event *pe)
21static int do_schedule; 21{
22 AV *priv = (AV *)pe->ext_data;
23 IV type = SvIV (AvARRAY (priv)[CD_TYPE]);
24 SV **cd_coro;
22 25
23#define NEED_SCHEDULE if (!do_schedule) \ 26 SvIV_set (AvARRAY (priv)[CD_HITS], pe->hits);
24 { \
25 do_schedule = 1; \
26 GEventAPI->now ((pe_watcher *)scheduler); \
27 }
28static void
29coro_std_cb(pe_event *pe)
30{
31 AV *av = (AV *)SvRV ((SV *)pe->ext_data);
32 IV type = SvIV (*av_fetch (av, CD_TYPE, 1));
33 SV *cd_coro = *av_fetch (av, CD_CORO, 1);
34
35 av_store (av, CD_W, SvREFCNT_inc (pe->up->mysv));
36 27
37 if (type == 1) 28 if (type == 1)
38 av_store (av, CD_GOT, newSViv (((pe_ioevent *)pe)->got)); 29 SvIV_set (AvARRAY (priv)[CD_GOT], ((pe_ioevent *)pe)->got);
39 30
40 GEventAPI->stop (pe->up, 0); 31 GEventAPI->stop (pe->up, 0);
41 32
42 if (SvROK (cd_coro)) 33 AvARRAY (priv)[CD_OK] = &PL_sv_yes;
34
35 cd_coro = &AvARRAY(priv)[CD_CORO];
36 if (*cd_coro != &PL_sv_undef)
43 { 37 {
38 AvARRAY (priv)[CD_OK] = &PL_sv_yes;
44 CORO_READY (cd_coro); 39 CORO_READY (*cd_coro);
45 NEED_SCHEDULE; 40 SvREFCNT_dec (*cd_coro);
41 *cd_coro = &PL_sv_undef;
46 } 42 }
47} 43}
48 44
49static void 45static void
50scheduler_cb(pe_event *pe) 46asynccheck_hook (void *data)
51{ 47{
48 /* ceding from C means allocating a stack, but we assume this is a rare case */
52 while (CORO_NREADY) 49 while (CORO_NREADY)
53 CORO_CEDE; 50 CORO_CEDE;
54
55 do_schedule = 0;
56} 51}
57 52
58MODULE = Coro::Event PACKAGE = Coro::Event 53MODULE = Coro::Event PACKAGE = Coro::Event
59 54
60PROTOTYPES: ENABLE 55PROTOTYPES: ENABLE
61 56
62BOOT: 57BOOT:
63{ 58{
64 I_EVENT_API("Coro::Event"); 59 I_EVENT_API ("Coro::Event");
65 I_CORO_API ("Coro::Event"); 60 I_CORO_API ("Coro::Event");
66 61
67 ev_stash = gv_stashpv (EV_CLASS, TRUE); 62 GEventAPI->add_hook ("asynccheck", (void *)asynccheck_hook, 0);
68
69 /* create a fake idle handler (we only ever call now) */
70 scheduler = GEventAPI->new_idle (0, 0);
71 scheduler->base.callback = scheduler_cb;
72 scheduler->min_interval = newSVnv (0);
73 scheduler->max_interval = newSVnv (0);
74 GEventAPI->stop ((pe_watcher *)scheduler, 0);
75} 63}
76 64
77void 65void
78_install_std_cb(self,type) 66_install_std_cb (SV *self, int type)
79 SV * self
80 int type
81 CODE: 67 CODE:
68{
82 pe_watcher *w = GEventAPI->sv_2watcher (self); 69 pe_watcher *w = GEventAPI->sv_2watcher (self);
83 AV *priv = newAV ();
84 SV *rv;
85 70
86 av_extend (priv, CD_MAX); 71 if (w->callback)
87 av_store (priv, CD_TYPE, newSViv (type)); 72 croak ("Coro::Event watchers must not have a callback (see Coro::Event), caught");
88 73
89 rv = sv_bless (newRV_noinc ((SV *)priv), ev_stash); 74 {
75 AV *priv = newAV ();
76 SV *rv = newRV_noinc ((SV *)priv);
90 77
91 hv_store ((HV *)SvRV (self), 78 av_extend (priv, CD_MAX);
92 EV_CLASS, strlen (EV_CLASS), 79 AvARRAY (priv)[CD_CORO] = &PL_sv_undef;
93 rv, 0); 80 AvARRAY (priv)[CD_TYPE] = newSViv (type);
81 AvARRAY (priv)[CD_OK ] = &PL_sv_no;
82 AvARRAY (priv)[CD_HITS] = newSViv (0);
83 AvARRAY (priv)[CD_GOT ] = newSViv (0);
84 SvREADONLY_on (priv);
94 85
95 w->ext_data = rv;
96 w->callback = coro_std_cb; 86 w->callback = coro_std_cb;
87 w->ext_data = priv;
88
89 /* make sure Event does not use PERL_MAGIC_uvar, which */
90 /* we abuse for non-uvar purposes. */
91 sv_magicext (SvRV (self), rv, PERL_MAGIC_uvar, 0, 0, 0);
92 }
93}
97 94
98void 95void
99_next0(self) 96_next (SV *self)
100 SV * self
101 CODE: 97 CODE:
98{
102 pe_watcher *w = GEventAPI->sv_2watcher (self); 99 pe_watcher *w = GEventAPI->sv_2watcher (self);
103 AV *priv = (AV *)SvRV ((SV *)w->ext_data); 100 AV *priv = (AV *)w->ext_data;
104 101
105 GEventAPI->start (w, 1); 102 if (AvARRAY (priv)[CD_OK] == &PL_sv_yes)
103 {
104 AvARRAY (priv)[CD_OK] = &PL_sv_no;
105 XSRETURN_NO; /* got an event */
106 }
106 107
107 if (SvROK (*av_fetch (priv, CD_CORO, 1))) 108 if (!w->running)
108 croak ("only one coroutine can wait for an event"); 109 {
110 SvIV_set (AvARRAY (priv)[CD_GOT], 0);
111 SvIV_set (AvARRAY (priv)[CD_HITS], 0);
109 112
113 GEventAPI->start (w, 1);
114 }
115
116 if (AvARRAY (priv)[CD_CORO] == &PL_sv_undef)
110 av_store (priv, CD_CORO, SvREFCNT_inc (CORO_CURRENT)); 117 AvARRAY (priv)[CD_CORO] = SvREFCNT_inc (CORO_CURRENT);
118 else if (AvARRAY (priv)[CD_CORO] != CORO_CURRENT)
119 croak ("Coro::Event::next can only be called from a single coroutine at a time, caught");
120
121 XSRETURN_YES; /* schedule */
122}
111 123
112SV * 124SV *
113_next1(self) 125_event (SV *self)
114 SV * self 126 CODE:
115 CODE: 127{
116 pe_watcher *w = GEventAPI->sv_2watcher (self); 128 if (GIMME_V == G_VOID)
117 AV *priv = (AV *)SvRV ((SV *)w->ext_data); 129 XSRETURN_EMPTY;
118 130
119 av_store (priv, CD_CORO, &PL_sv_undef); 131 {
132 pe_watcher *w = GEventAPI->sv_2watcher (self);
133 AV *priv = (AV *)w->ext_data;
120 134
121 RETVAL = SvREFCNT_inc ((SV *)w->ext_data); 135 RETVAL = newRV_inc ((SV *)priv);
136 }
137}
122 OUTPUT: 138 OUTPUT:
123 RETVAL 139 RETVAL
124 140

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