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/cvs/Coro/Event/Event.xs
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Comparing Coro/Event/Event.xs (file contents):
Revision 1.4 by root, Fri Aug 17 03:33:00 2001 UTC vs.
Revision 1.9 by root, Sat Mar 22 18:50:32 2003 UTC

… …
2#include "perl.h" 2#include "perl.h"
3#include "XSUB.h" 3#include "XSUB.h"
4 4
5#include <string.h> 5#include <string.h>
6 6
7/* this useful idiom is unfortunately missing... */
8static void
9confess (const char *msg)
10{
11 dSP;
12
13 PUSHMARK(SP);
14 XPUSHs (sv_2mortal(newSVpv("only one coroutine can wait for an event at any given time",0)));
15 PUTBACK;
16 call_pv ("Carp::confess", G_VOID);
17}
18
7#include "EventAPI.h" 19#include "EventAPI.h"
8#include "../Coro/CoroAPI.h" 20#include "../Coro/CoroAPI.h"
21
22#ifndef PE_PERLCB
23# define PE_PERLCB 0x020 /* not public, but we need it :( */
24#endif
9 25
10#define CD_CORO 0 26#define CD_CORO 0
11#define CD_TYPE 1 27#define CD_TYPE 1
12#define CD_OK 2 28#define CD_OK 2
29#define CD_PRIO 3 /* hardcoded in Coro::Event */
30#define CD_HITS 4 /* hardcoded in Coro::Event */
13#define CD_GOT 3 /* hardcoded in Coro::Event, Coro::Handle */ 31#define CD_GOT 5 /* hardcoded in Coro::Event, Coro::Handle */
14#define CD_MAX 3 32#define CD_MAX 5
15/* no support for hits and prio so far. */
16 33
17#define EV_CLASS "Coro::Event" 34#define EV_CLASS "Coro::Event"
18 35
19static pe_idle *scheduler; 36static pe_idle *scheduler;
20static int do_schedule; 37static int do_schedule;
… …
26 } 43 }
27 44
28static void 45static void
29coro_std_cb(pe_event *pe) 46coro_std_cb(pe_event *pe)
30{ 47{
31 AV *priv = (AV *)SvRV ((SV *)pe->ext_data); 48 AV *priv = (AV *)pe->ext_data;
32 IV type = SvIV (*av_fetch (priv, CD_TYPE, 1)); 49 IV type = SvIV (*av_fetch (priv, CD_TYPE, 1));
33 SV *cd_coro = *av_fetch (priv, CD_CORO, 1); 50 SV **cd_coro = &AvARRAY(priv)[CD_CORO];
51
52 sv_setiv (AvARRAY(priv)[CD_PRIO], pe->prio);
53 sv_setiv (AvARRAY(priv)[CD_HITS], pe->hits);
34 54
35 if (type == 1) 55 if (type == 1)
36 av_store (priv, CD_GOT, newSViv (((pe_ioevent *)pe)->got)); 56 sv_setiv (AvARRAY(priv)[CD_GOT], ((pe_ioevent *)pe)->got);
37 57
38 if (SvROK (cd_coro)) 58 if (*cd_coro != &PL_sv_undef)
39 { 59 {
40 CORO_READY (cd_coro); 60 CORO_READY (*cd_coro);
41 av_store (priv, CD_CORO, &PL_sv_undef); 61 SvREFCNT_dec (*cd_coro);
62 *cd_coro = &PL_sv_undef;
42 NEED_SCHEDULE; 63 NEED_SCHEDULE;
43 } 64 }
44 else 65 else
45 { 66 {
46 av_store (priv, CD_OK, &PL_sv_yes); 67 AvARRAY(priv)[CD_OK] = &PL_sv_yes;
47 GEventAPI->stop (pe->up, 0); 68 GEventAPI->stop (pe->up, 0);
48 } 69 }
49} 70}
50 71
51static void 72static void
… …
61 82
62PROTOTYPES: ENABLE 83PROTOTYPES: ENABLE
63 84
64BOOT: 85BOOT:
65{ 86{
66 I_EVENT_API("Coro::Event"); 87 I_EVENT_API ("Coro::Event");
67 I_CORO_API ("Coro::Event"); 88 I_CORO_API ("Coro::Event");
68 89
69 /* create a fake idle handler (we only ever call now) */ 90 /* create a fake idle handler (we only ever call now) */
70 scheduler = GEventAPI->new_idle (0, 0); 91 scheduler = GEventAPI->new_idle (0, 0);
71 scheduler->base.callback = scheduler_cb; 92 scheduler->base.callback = scheduler_cb;
93 scheduler->base.prio = PE_PRIO_NORMAL; /* StarvePrio */
72 scheduler->min_interval = newSVnv (0); 94 scheduler->min_interval = newSVnv (0);
73 scheduler->max_interval = newSVnv (0); 95 scheduler->max_interval = newSVnv (0);
74 GEventAPI->stop ((pe_watcher *)scheduler, 0); 96 GEventAPI->stop ((pe_watcher *)scheduler, 0);
75} 97}
76 98
… …
78_install_std_cb(self,type) 100_install_std_cb(self,type)
79 SV * self 101 SV * self
80 int type 102 int type
81 CODE: 103 CODE:
82 pe_watcher *w = GEventAPI->sv_2watcher (self); 104 pe_watcher *w = GEventAPI->sv_2watcher (self);
83 AV *priv = newAV ();
84 SV *rv = newRV_noinc ((SV *)priv);
85 105
86 av_extend (priv, CD_MAX); 106 if (WaFLAGS (w) & PE_PERLCB)
87 av_store (priv, CD_TYPE, newSViv (type)); 107 croak ("Coro::Event watchers must not have a perl callback (see Coro::Event), caught");
108 {
109 AV *priv = newAV ();
110 SV *rv = newRV_noinc ((SV *)priv);
88 111
89 w->callback = coro_std_cb; 112 av_extend (priv, CD_MAX);
90 w->ext_data = rv; 113 av_store (priv, CD_CORO, &PL_sv_undef);
114 av_store (priv, CD_TYPE, newSViv (type));
115 av_store (priv, CD_OK , &PL_sv_no);
116 av_store (priv, CD_PRIO, newSViv (0));
117 av_store (priv, CD_HITS, newSViv (0));
118 av_store (priv, CD_GOT , type ? newSViv (0) : &PL_sv_undef);
119 SvREADONLY_on (priv);
91 120
121 w->callback = coro_std_cb;
122 w->ext_data = priv;
123
92 hv_store ((HV *)SvRV (self), 124 hv_store ((HV *)SvRV (self),
93 EV_CLASS, strlen (EV_CLASS), 125 EV_CLASS, strlen (EV_CLASS),
94 rv, 0); 126 rv, 0);
127
128 GEventAPI->start (w, 0);
129 }
95 130
96void 131void
97_next(self) 132_next(self)
98 SV * self 133 SV * self
99 CODE: 134 CODE:
100 pe_watcher *w = GEventAPI->sv_2watcher (self); 135 pe_watcher *w = GEventAPI->sv_2watcher (self);
101 AV *priv = (AV *)SvRV ((SV *)w->ext_data); 136 AV *priv = (AV *)w->ext_data;
102
103 if (SvOK (*av_fetch (priv, CD_CORO, 1)))
104 croak ("only one coroutine can wait for an event");
105 137
106 if (!w->running) 138 if (!w->running)
107 GEventAPI->start (w, 1); 139 GEventAPI->start (w, 1);
108 140
109 if (*av_fetch (priv, CD_OK, 1) == &PL_sv_yes) 141 if (AvARRAY(priv)[CD_OK] == &PL_sv_yes)
110 { 142 {
111 av_store (priv, CD_OK, &PL_sv_no); 143 AvARRAY(priv)[CD_OK] = &PL_sv_no;
112 XSRETURN_NO; 144 XSRETURN_NO;
113 } 145 }
114 else 146 else
115 { 147 {
148 if (AvARRAY(priv)[CD_CORO] != &PL_sv_undef)
149 confess ("only one coroutine can wait for an event");
150
116 av_store (priv, CD_CORO, SvREFCNT_inc (CORO_CURRENT)); 151 AvARRAY(priv)[CD_CORO] = SvREFCNT_inc (CORO_CURRENT);
117 XSRETURN_YES; 152 XSRETURN_YES;
118 } 153 }
119 154
155MODULE = Coro::Event PACKAGE = Coro
156
157# overwrite the ready function
158void
159ready(self)
160 SV * self
161 PROTOTYPE: $
162 CODE:
163 NEED_SCHEDULE;
164 CORO_READY (self);
165
166

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