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Comparing Coro/Event/Event.xs (file contents):
Revision 1.14 by root, Fri Dec 1 20:49:54 2006 UTC vs.
Revision 1.20 by root, Sat Sep 22 20:11:53 2007 UTC

… …
6#include <string.h> 6#include <string.h>
7 7
8#include "EventAPI.h" 8#include "EventAPI.h"
9#include "../Coro/CoroAPI.h" 9#include "../Coro/CoroAPI.h"
10 10
11#define CD_CORO 0 11#define CD_WAIT 0 /* wait queue */
12#define CD_TYPE 1 12#define CD_TYPE 1
13#define CD_OK 2 13#define CD_OK 2
14#define CD_HITS 3 /* hardcoded in Coro::Event */
15#define CD_GOT 4 /* hardcoded in Coro::Event, Coro::Handle */
16#define CD_MAX 4
14 17
15#define CD_HITS 4 /* hardcoded in Coro::Event */ 18static HV *coro_event_event_stash;
16#define CD_GOT 5 /* hardcoded in Coro::Event, Coro::Handle */ 19
17#define CD_MAX 5 20static int
21coro_ev_free (pTHX_ SV *sv, MAGIC *mg)
22{
23 *(void **)mg->mg_ptr = 0;
24
25 return 0;
26}
27
28#define PERL_MAGIC_coro_event 0x18 /* to avoid clashes with e.g. event */
29
30static MGVTBL vtbl_coro_event = {0, 0, 0, 0, coro_ev_free};
18 31
19static void 32static void
20coro_std_cb (pe_event *pe) 33coro_std_cb (pe_event *pe)
21{ 34{
35 if (pe->up->ext_data)
36 {
22 AV *priv = (AV *)pe->ext_data; 37 AV *priv = (AV *)pe->ext_data;
23 IV type = SvIV (AvARRAY (priv)[CD_TYPE]); 38 IV type = SvIV (AvARRAY (priv)[CD_TYPE]);
24 SV **cd_coro; 39 AV *cd_wait;
40 SV *coro;
25 41
26 SvIV_set (AvARRAY (priv)[CD_HITS], pe->hits); 42 SvIV_set (AvARRAY (priv)[CD_HITS], pe->hits);
43 SvIV_set (AvARRAY (priv)[CD_GOT], type ? ((pe_ioevent *)pe)->got : 0);
27 44
28 if (type == 1) 45 AvARRAY (priv)[CD_OK] = &PL_sv_yes;
29 SvIV_set (AvARRAY (priv)[CD_GOT], ((pe_ioevent *)pe)->got);
30 46
31 GEventAPI->stop (pe->up, 0); 47 cd_wait = (AV *)AvARRAY(priv)[CD_WAIT];
32 48
33 AvARRAY (priv)[CD_OK] = &PL_sv_yes; 49 coro = av_shift (cd_wait);
50 if (coro != &PL_sv_undef)
51 {
52 CORO_READY (coro);
53 SvREFCNT_dec (coro);
54 }
34 55
35 cd_coro = &AvARRAY(priv)[CD_CORO]; 56 if (av_len (cd_wait) < 0)
36 if (*cd_coro != &PL_sv_undef) 57 GEventAPI->stop (pe->up, 0);
37 {
38 AvARRAY (priv)[CD_OK] = &PL_sv_yes;
39 CORO_READY (*cd_coro);
40 SvREFCNT_dec (*cd_coro);
41 *cd_coro = &PL_sv_undef;
42 } 58 }
43} 59}
44 60
45static void 61static void
46asynccheck_hook (void *data) 62asynccheck_hook (void *data)
47{ 63{
48 /* ceding from C means allocating a stack, but we assume this is a rare case */ 64 /* this loops as long as we have _other_ coros with the same or higher priority */
65 while (CORO_NREADY && CORO_CEDE)
66 ;
67}
68
69static double
70prepare_hook (void *data)
71{
72 /* this yields once to another coro with any priority */
49 while (CORO_NREADY) 73 if (CORO_NREADY)
50 CORO_CEDE; 74 {
75 CORO_CEDE_NOTSELF;
76 /*
77 * timers might have changed, and Event fails to notice this
78 * so we have to assume the worst. If Event didn't have that bug,
79 * we would only need to do this if CORO_NREADY is != 0 now.
80 */
81 return 0.;
82 }
83 else
84 return 85197.73; /* this is as good as any value, but it factors badly with common values */
51} 85}
52 86
53MODULE = Coro::Event PACKAGE = Coro::Event 87MODULE = Coro::Event PACKAGE = Coro::Event
54 88
55PROTOTYPES: ENABLE 89PROTOTYPES: ENABLE
56 90
57BOOT: 91BOOT:
58{ 92{
93 coro_event_event_stash = gv_stashpv ("Coro::Event::Event", TRUE);
94
59 I_EVENT_API ("Coro::Event"); 95 I_EVENT_API ("Coro::Event");
60 I_CORO_API ("Coro::Event"); 96 I_CORO_API ("Coro::Event");
61 97
62 GEventAPI->add_hook ("asynccheck", (void *)asynccheck_hook, 0); 98 GEventAPI->add_hook ("asynccheck", (void *)asynccheck_hook, 0);
99 GEventAPI->add_hook ("prepare", (void *)prepare_hook, 0);
63} 100}
64 101
65void 102void
66_install_std_cb (SV *self, int type) 103_install_std_cb (SV *self, int type)
67 CODE: 104 CODE:
… …
71 if (w->callback) 108 if (w->callback)
72 croak ("Coro::Event watchers must not have a callback (see Coro::Event), caught"); 109 croak ("Coro::Event watchers must not have a callback (see Coro::Event), caught");
73 110
74 { 111 {
75 AV *priv = newAV (); 112 AV *priv = newAV ();
76 SV *rv = newRV_noinc ((SV *)priv);
77 113
78 av_extend (priv, CD_MAX); 114 av_fill (priv, CD_MAX);
79 AvARRAY (priv)[CD_CORO] = &PL_sv_undef; 115 AvARRAY (priv)[CD_WAIT] = (SV *)newAV (); /* AV in AV _should_ not be exposed to perl */
80 AvARRAY (priv)[CD_TYPE] = newSViv (type); 116 AvARRAY (priv)[CD_TYPE] = newSViv (type);
81 AvARRAY (priv)[CD_OK ] = &PL_sv_no; 117 AvARRAY (priv)[CD_OK ] = &PL_sv_no;
82 AvARRAY (priv)[CD_HITS] = newSViv (0); 118 AvARRAY (priv)[CD_HITS] = newSViv (0);
83 AvARRAY (priv)[CD_GOT ] = newSViv (0); 119 AvARRAY (priv)[CD_GOT ] = newSViv (0);
84 SvREADONLY_on (priv); 120 SvREADONLY_on (priv);
85 121
86 w->callback = coro_std_cb; 122 w->callback = coro_std_cb;
87 w->ext_data = priv; 123 w->ext_data = priv;
88 124
89 /* make sure Event does not use PERL_MAGIC_uvar, which */ 125 sv_magicext (SvRV (self), newRV_noinc ((SV *)priv), PERL_MAGIC_coro_event, &vtbl_coro_event, &w->ext_data, 0);
90 /* we abuse for non-uvar purposes. */
91 sv_magicext (SvRV (self), rv, PERL_MAGIC_uvar, 0, 0, 0);
92 } 126 }
93} 127}
94 128
95void 129void
96_next (SV *self) 130_next (SV *self)
… …
103 { 137 {
104 AvARRAY (priv)[CD_OK] = &PL_sv_no; 138 AvARRAY (priv)[CD_OK] = &PL_sv_no;
105 XSRETURN_NO; /* got an event */ 139 XSRETURN_NO; /* got an event */
106 } 140 }
107 141
142 av_push ((AV *)AvARRAY (priv)[CD_WAIT], SvREFCNT_inc (CORO_CURRENT));
143
108 if (!w->running) 144 if (!w->running)
109 {
110 SvIV_set (AvARRAY (priv)[CD_GOT], 0);
111 SvIV_set (AvARRAY (priv)[CD_HITS], 0);
112
113 GEventAPI->start (w, 1); 145 GEventAPI->start (w, 1);
114 }
115
116 if (AvARRAY (priv)[CD_CORO] == &PL_sv_undef)
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");
120 146
121 XSRETURN_YES; /* schedule */ 147 XSRETURN_YES; /* schedule */
122} 148}
123 149
124SV * 150SV *
… …
131 { 157 {
132 pe_watcher *w = GEventAPI->sv_2watcher (self); 158 pe_watcher *w = GEventAPI->sv_2watcher (self);
133 AV *priv = (AV *)w->ext_data; 159 AV *priv = (AV *)w->ext_data;
134 160
135 RETVAL = newRV_inc ((SV *)priv); 161 RETVAL = newRV_inc ((SV *)priv);
162
163 /* may need to bless it now */
164 if (!SvOBJECT (priv))
165 {
166 SvREADONLY_off ((SV *)priv);
167 sv_bless (RETVAL, coro_event_event_stash);
168 SvREADONLY_on ((SV *)priv);
169 }
136 } 170 }
137} 171}
138 OUTPUT: 172 OUTPUT:
139 RETVAL 173 RETVAL
140 174

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