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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 | |
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7 | /* this useful idiom is unfortunately missing... */ |
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8 | static void |
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9 | confess (const char *msg) |
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10 | { |
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11 | dSP; |
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12 | |
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13 | PUSHMARK(SP); |
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14 | XPUSHs (sv_2mortal(newSVpv("only one coroutine can wait for an event",0))); |
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15 | PUTBACK; |
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16 | call_pv ("Carp::confess", G_VOID); |
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17 | } |
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18 | |
7 | #include "EventAPI.h" |
19 | #include "EventAPI.h" |
8 | #include "../Coro/CoroAPI.h" |
20 | #include "../Coro/CoroAPI.h" |
9 | |
21 | |
10 | #define CD_CORO 0 |
22 | #define CD_CORO 0 |
11 | #define CD_TYPE 1 |
23 | #define CD_TYPE 1 |
12 | #define CD_W 2 |
24 | #define CD_OK 2 |
13 | #define CD_GOT 3 |
25 | #define CD_PRIO 3 /* hardcoded in Coro::Event */ |
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26 | #define CD_HITS 4 /* hardcoded in Coro::Event */ |
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27 | #define CD_GOT 5 /* hardcoded in Coro::Event, Coro::Handle */ |
14 | #define CD_MAX 3 |
28 | #define CD_MAX 5 |
15 | /* no support for hits and prio so far. */ |
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16 | |
29 | |
17 | #define EV_CLASS "Coro::Event::Ev" |
30 | #define EV_CLASS "Coro::Event" |
18 | |
31 | |
19 | static HV *ev_stash; |
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20 | static pe_idle *scheduler; |
32 | static pe_idle *scheduler; |
21 | static int do_schedule; |
33 | static int do_schedule; |
22 | |
34 | |
23 | #define NEED_SCHEDULE if (!do_schedule) \ |
35 | #define NEED_SCHEDULE if (!do_schedule) \ |
24 | { \ |
36 | { \ |
25 | do_schedule = 1; \ |
37 | do_schedule = 1; \ |
26 | GEventAPI->now ((pe_watcher *)scheduler); \ |
38 | GEventAPI->now ((pe_watcher *)scheduler); \ |
27 | } |
39 | } |
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40 | |
28 | static void |
41 | static void |
29 | coro_std_cb(pe_event *pe) |
42 | coro_std_cb(pe_event *pe) |
30 | { |
43 | { |
31 | AV *av = (AV *)SvRV ((SV *)pe->ext_data); |
44 | AV *priv = (AV *)pe->ext_data; |
32 | IV type = SvIV (*av_fetch (av, CD_TYPE, 1)); |
45 | IV type = SvIV (*av_fetch (priv, CD_TYPE, 1)); |
33 | SV *cd_coro = *av_fetch (av, CD_CORO, 1); |
46 | SV **cd_coro = &AvARRAY(priv)[CD_CORO]; |
34 | |
47 | |
35 | av_store (av, CD_W, SvREFCNT_inc (pe->up->mysv)); |
48 | sv_setiv (AvARRAY(priv)[CD_PRIO], pe->prio); |
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49 | sv_setiv (AvARRAY(priv)[CD_HITS], pe->hits); |
36 | |
50 | |
37 | if (type == 1) |
51 | if (type == 1) |
38 | av_store (av, CD_GOT, newSViv (((pe_ioevent *)pe)->got)); |
52 | sv_setiv (AvARRAY(priv)[CD_GOT], ((pe_ioevent *)pe)->got); |
39 | |
53 | |
40 | GEventAPI->stop (pe->up, 0); |
54 | if (*cd_coro != &PL_sv_undef) |
41 | |
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42 | if (SvROK (cd_coro)) |
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43 | { |
55 | { |
44 | CORO_READY (cd_coro); |
56 | CORO_READY (*cd_coro); |
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57 | SvREFCNT_dec (*cd_coro); |
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58 | *cd_coro = &PL_sv_undef; |
45 | NEED_SCHEDULE; |
59 | NEED_SCHEDULE; |
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60 | } |
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61 | else |
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62 | { |
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63 | AvARRAY(priv)[CD_OK] = &PL_sv_yes; |
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64 | GEventAPI->stop (pe->up, 0); |
46 | } |
65 | } |
47 | } |
66 | } |
48 | |
67 | |
49 | static void |
68 | static void |
50 | scheduler_cb(pe_event *pe) |
69 | scheduler_cb(pe_event *pe) |
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62 | BOOT: |
81 | BOOT: |
63 | { |
82 | { |
64 | I_EVENT_API("Coro::Event"); |
83 | I_EVENT_API("Coro::Event"); |
65 | I_CORO_API ("Coro::Event"); |
84 | I_CORO_API ("Coro::Event"); |
66 | |
85 | |
67 | ev_stash = gv_stashpv (EV_CLASS, TRUE); |
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68 | |
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69 | /* create a fake idle handler (we only ever call now) */ |
86 | /* create a fake idle handler (we only ever call now) */ |
70 | scheduler = GEventAPI->new_idle (0, 0); |
87 | scheduler = GEventAPI->new_idle (0, 0); |
71 | scheduler->base.callback = scheduler_cb; |
88 | scheduler->base.callback = scheduler_cb; |
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89 | scheduler->base.prio = PE_PRIO_NORMAL; /* StarvePrio */ |
72 | scheduler->min_interval = newSVnv (0); |
90 | scheduler->min_interval = newSVnv (0); |
73 | scheduler->max_interval = newSVnv (0); |
91 | scheduler->max_interval = newSVnv (0); |
74 | GEventAPI->stop ((pe_watcher *)scheduler, 0); |
92 | GEventAPI->stop ((pe_watcher *)scheduler, 0); |
75 | } |
93 | } |
76 | |
94 | |
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79 | SV * self |
97 | SV * self |
80 | int type |
98 | int type |
81 | CODE: |
99 | CODE: |
82 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
100 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
83 | AV *priv = newAV (); |
101 | AV *priv = newAV (); |
84 | SV *rv; |
102 | SV *rv = newRV_noinc ((SV *)priv); |
85 | |
103 | |
86 | av_extend (priv, CD_MAX); |
104 | av_extend (priv, CD_MAX); |
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105 | av_store (priv, CD_CORO, &PL_sv_undef); |
87 | av_store (priv, CD_TYPE, newSViv (type)); |
106 | av_store (priv, CD_TYPE, newSViv (type)); |
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107 | av_store (priv, CD_OK , &PL_sv_no); |
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108 | av_store (priv, CD_PRIO, newSViv (0)); |
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109 | av_store (priv, CD_HITS, newSViv (0)); |
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110 | av_store (priv, CD_GOT , type ? newSViv (0) : &PL_sv_undef); |
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111 | SvREADONLY_on (priv); |
88 | |
112 | |
89 | rv = sv_bless (newRV_noinc ((SV *)priv), ev_stash); |
113 | w->callback = coro_std_cb; |
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114 | w->ext_data = priv; |
90 | |
115 | |
91 | hv_store ((HV *)SvRV (self), |
116 | hv_store ((HV *)SvRV (self), |
92 | EV_CLASS, strlen (EV_CLASS), |
117 | EV_CLASS, strlen (EV_CLASS), |
93 | rv, 0); |
118 | rv, 0); |
94 | |
119 | |
95 | w->ext_data = rv; |
120 | GEventAPI->start (w, 0); |
96 | w->callback = coro_std_cb; |
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97 | |
121 | |
98 | void |
122 | void |
99 | _next0(self) |
123 | _next(self) |
100 | SV * self |
124 | SV * self |
101 | CODE: |
125 | CODE: |
102 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
126 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
103 | AV *priv = (AV *)SvRV ((SV *)w->ext_data); |
127 | AV *priv = (AV *)w->ext_data; |
104 | |
128 | |
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129 | if (!w->running) |
105 | GEventAPI->start (w, 1); |
130 | GEventAPI->start (w, 1); |
106 | |
131 | |
107 | if (SvROK (*av_fetch (priv, CD_CORO, 1))) |
132 | if (AvARRAY(priv)[CD_OK] == &PL_sv_yes) |
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133 | { |
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134 | AvARRAY(priv)[CD_OK] = &PL_sv_no; |
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135 | XSRETURN_NO; |
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136 | } |
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137 | else |
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138 | { |
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139 | if (AvARRAY(priv)[CD_CORO] != &PL_sv_undef) |
108 | croak ("only one coroutine can wait for an event"); |
140 | confess ("only one coroutine can wait for an event"); |
109 | |
141 | |
110 | av_store (priv, CD_CORO, SvREFCNT_inc (CORO_CURRENT)); |
142 | AvARRAY(priv)[CD_CORO] = SvREFCNT_inc (CORO_CURRENT); |
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143 | XSRETURN_YES; |
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144 | } |
111 | |
145 | |
112 | SV * |
146 | MODULE = Coro::Event PACKAGE = Coro |
113 | _next1(self) |
147 | |
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148 | # overwrite the ready function |
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149 | void |
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150 | ready(self) |
114 | SV * self |
151 | SV * self |
115 | CODE: |
152 | PROTOTYPE: $ |
116 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
153 | CODE: |
117 | AV *priv = (AV *)SvRV ((SV *)w->ext_data); |
154 | NEED_SCHEDULE; |
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155 | CORO_READY (self); |
118 | |
156 | |
119 | av_store (priv, CD_CORO, &PL_sv_undef); |
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120 | |
157 | |
121 | RETVAL = SvREFCNT_inc ((SV *)w->ext_data); |
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122 | OUTPUT: |
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123 | RETVAL |
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124 | |
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