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1 | /* |
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2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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3 | * |
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4 | * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
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5 | * |
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6 | * Deliantra is free software: you can redistribute it and/or modify it under |
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7 | * the terms of the Affero GNU General Public License as published by the |
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8 | * Free Software Foundation, either version 3 of the License, or (at your |
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9 | * option) any later version. |
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10 | * |
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11 | * This program is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | * GNU General Public License for more details. |
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15 | * |
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16 | * You should have received a copy of the Affero GNU General Public License |
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17 | * and the GNU General Public License along with this program. If not, see |
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18 | * <http://www.gnu.org/licenses/>. |
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19 | * |
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20 | * The authors can be reached via e-mail to <support@deliantra.net> |
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21 | */ |
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22 | |
1 | // |
23 | // |
2 | // cfperl.h perl interface |
24 | // cfperl.h perl interface |
3 | // |
25 | // |
4 | #ifndef CFPERL_H__ |
26 | #ifndef CFPERL_H__ |
5 | #define CFPERL_H__ |
27 | #define CFPERL_H__ |
6 | |
28 | |
7 | #include <cstdio> |
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8 | |
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9 | using namespace std; |
29 | using namespace std; |
10 | |
30 | |
11 | #include <EXTERN.h> |
31 | #include <EXTERN.h> |
12 | #include <perl.h> |
32 | #include <perl.h> |
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33 | #include <XSUB.h> |
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34 | |
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35 | #include <EVAPI.h> |
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36 | #include <CoroAPI.h> |
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37 | |
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38 | #include "util.h" |
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39 | #include "keyword.h" |
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40 | #include "dynbuf.h" |
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41 | #include "callback.h" |
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42 | |
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43 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
13 | |
44 | |
14 | // optimisations/workaround for functions requiring my_perl in scope (anti-bloat) |
45 | // optimisations/workaround for functions requiring my_perl in scope (anti-bloat) |
15 | #undef localtime |
46 | #undef localtime |
16 | #undef srand48 |
47 | #undef srand48 |
17 | #undef drand48 |
48 | #undef drand48 |
18 | #undef srandom |
49 | #undef srandom |
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50 | #undef opendir |
19 | #undef readdir |
51 | #undef readdir |
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52 | #undef closedir |
20 | #undef getprotobyname |
53 | #undef getprotobyname |
21 | #undef gethostbyname |
54 | #undef gethostbyname |
22 | #undef ctime |
55 | #undef ctime |
23 | #undef strerror |
56 | #undef strerror |
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57 | #undef _ |
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58 | |
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59 | // same here, massive symbol spamming |
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60 | #undef do_open |
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61 | #undef do_close |
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62 | #undef ref |
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63 | #undef seed |
24 | |
64 | |
25 | // perl bug #40256: perl does overwrite those with reentrant versions |
65 | // perl bug #40256: perl does overwrite those with reentrant versions |
26 | // but does not initialise their state structures. |
66 | // but does not initialise their state structures. |
27 | #undef random |
67 | #undef random |
28 | #undef crypt |
68 | #undef crypt |
29 | |
69 | |
30 | struct pl; |
70 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
31 | struct object; |
71 | |
32 | struct mapstruct; |
72 | #define _(msg) (msg) |
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73 | #define N_(msg) (msg) |
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74 | |
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75 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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76 | |
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77 | // some macros to simplify perl in-calls |
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78 | |
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79 | #define CHECK_ERROR \ |
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80 | if (SvTRUE (ERRSV)) \ |
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81 | LOG (llevError, "runtime error in %s: %s", __func__, SvPVutf8_nolen (ERRSV)); |
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82 | |
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83 | inline int call_pvsv (const char *ob, I32 flags) { return call_pv (ob, flags); } |
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84 | inline int call_pvsv (SV *ob, I32 flags) { return call_sv (ob, flags); } |
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85 | |
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86 | // TODO: temporarily enabled pushstack/popstack for all calls from the core, to maybe fix object memleak? |
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87 | #define CALL_PUSH PUSHSTACKi (PERLSI_UNKNOWN) |
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88 | #define CALL_POP PUTBACK; POPSTACK; SPAGAIN |
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89 | #define CALL_BEGIN(args) dSP; CALL_PUSH; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args) |
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90 | #define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc |
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91 | #define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr))) |
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92 | #define CALL_CALL(name, flags) PUTBACK; int count = call_pvsv (name, (flags) | G_EVAL); SPAGAIN; |
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93 | #define CALL_END PUTBACK; CHECK_ERROR; FREETMPS; LEAVE; CALL_POP |
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94 | |
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95 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
33 | |
96 | |
34 | void cfperl_init (); |
97 | void cfperl_init (); |
35 | void cfperl_boot (); |
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36 | void cfperl_main (); |
98 | void cfperl_main (); |
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99 | void cfperl_tick (); |
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100 | void cfperl_emergency_save (); |
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101 | void cfperl_cleanup (int make_core); |
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102 | void cfperl_make_book (object *book, int level); |
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103 | void cfperl_send_msg (client *ns, int color, const_utf8_string type, const_utf8_string msg); |
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104 | int cfperl_can_merge (object *ob1, object *ob2); |
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105 | void cfperl_mapscript_activate (object *ob, int state, object *activator, object *originator = 0); |
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106 | void cfperl_ix (client *ns, int set, faceidx idx, int pri); |
37 | |
107 | |
38 | // could have used templates, but a more traditional C api |
108 | bool is_match_expr (const_utf8_string expr); |
39 | // uses more explicit typing which is ok for this purpose. |
109 | // applies the match expression and returns true if it matches |
40 | enum data_type |
110 | bool match (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0); |
41 | { |
111 | // same as above, but returns the first object found, or 0 |
42 | DT_END, // no further arguments |
112 | object *match_one (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0); |
43 | DT_AV, // perl-only av that needs to be flattened out |
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44 | DT_INT, |
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45 | DT_INT64, |
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46 | DT_DOUBLE, |
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47 | DT_STRING, // 0-terminated string |
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48 | DT_DATA, // string + length |
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49 | DT_OBJECT, |
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50 | DT_MAP, |
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51 | DT_PLAYER, |
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52 | DT_ARCH, |
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53 | DT_PARTY, |
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54 | DT_REGION, |
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55 | |
113 | |
56 | NUM_DATA_TYPES |
114 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
57 | }; |
115 | |
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116 | #if IVSIZE >= 8 |
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117 | typedef IV val64; |
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118 | typedef IV uval64; |
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119 | # define newSVval64 newSViv |
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120 | # define SvVAL64 SvIV |
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121 | # define newSVuval64 newSVuv |
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122 | # define SvUVAL64 SvUV |
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123 | #else |
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124 | typedef double val64; |
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125 | typedef double uval64; |
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126 | # define newSVval64 newSVnv |
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127 | # define SvVAL64 SvNV |
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128 | # define newSVuval64 newSVnv |
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129 | # define SvUVAL64 SvNV |
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130 | #endif |
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131 | |
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132 | extern tstamp runtime; // virtual server time, excluding time jumps and lag |
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133 | extern tstamp NOW; // real time of current server tick |
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134 | |
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135 | noinline utf8_string cfSvPVutf8_nolen (SV *sv); |
58 | |
136 | |
59 | enum event_klass |
137 | enum event_klass |
60 | { |
138 | { |
61 | KLASS_NONE, |
139 | KLASS_NONE, |
62 | KLASS_GLOBAL, |
140 | KLASS_GLOBAL, |
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141 | KLASS_ATTACHABLE, |
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142 | KLASS_CLIENT, |
63 | KLASS_PLAYER, |
143 | KLASS_PLAYER, |
64 | KLASS_OBJECT, |
144 | KLASS_OBJECT, |
65 | KLASS_MAP, |
145 | KLASS_MAP, |
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146 | KLASS_COMMAND, |
66 | }; |
147 | }; |
67 | |
148 | |
68 | enum event_type |
149 | enum event_type |
69 | { |
150 | { |
70 | # define def(klass,name) EVENT_ ## klass ## _ ## name, |
151 | # define def(klass,name) EVENT_ ## klass ## _ ## name, |
71 | # include "eventinc.h" |
152 | # include "eventinc.h" |
72 | # undef def |
153 | # undef def |
73 | NUM_EVENT_TYPES |
154 | NUM_EVENT_TYPES |
74 | }; |
155 | }; |
75 | |
156 | |
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157 | // in which global events or per-type events are we interested |
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158 | extern bitset<NUM_EVENT_TYPES> ev_want_event; |
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159 | extern bitset<NUM_TYPES> ev_want_type; |
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160 | |
76 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
161 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
77 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
162 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
78 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
163 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
79 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
164 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
80 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
165 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
81 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) |
166 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l) |
82 | #define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) |
167 | #define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o)) |
83 | #define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) |
168 | #define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o)) |
84 | #define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) |
169 | #define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o)) |
85 | #define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) |
170 | #define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o)) |
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171 | #define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o)) |
86 | #define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) |
172 | #define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o)) |
87 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) |
173 | #define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o)) |
88 | |
174 | |
89 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
175 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
90 | |
176 | #define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0) |
91 | // all these return true when the normal event processing should be skipped (if any) |
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92 | #define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) |
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93 | |
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94 | #define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) |
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95 | #define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
177 | #define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
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178 | #define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__) |
96 | #define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) |
179 | #define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__) |
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180 | #define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__) |
97 | #define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) |
181 | #define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__) |
98 | #define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) |
182 | #define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__) |
99 | |
183 | |
100 | //TODO should index into @result |
184 | //TODO should index into @result |
101 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
185 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
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186 | #define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE) |
102 | #define RESULT_INT(idx) RESULT(idx, INT) |
187 | #define RESULT_INT(idx) RESULT(idx, INT) |
103 | |
188 | |
104 | bool cfperl_invoke (event_type event, ...); |
189 | double cfperl_result_DOUBLE (int idx); |
105 | int cfperl_result_INT (int idx); |
190 | int cfperl_result_INT (int idx); |
106 | |
191 | |
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192 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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193 | |
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194 | INTERFACE_CLASS (attachable) |
107 | struct attachable_base |
195 | struct attachable : refcnt_base |
108 | { |
196 | { |
109 | struct sv *self; |
197 | static MGVTBL vtbl; |
110 | struct av *cb; // CF+ perl self and callback |
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111 | const char *attach; // generic extension attachment information |
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112 | |
198 | |
113 | void clear (); // called when free'ing objects |
199 | enum { |
114 | void optimise (); // possibly save some memory by destroying unneeded data |
200 | F_DESTROYED = 0x01, |
115 | void instantiate (data_type type, void *obj); |
201 | F_DEBUG_TRACE = 0x02, |
116 | |
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117 | void attachable_init () |
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118 | { |
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119 | self = 0; |
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120 | cb = 0; |
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121 | attach = 0; |
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122 | } |
202 | }; |
123 | }; |
203 | uint8 ACC (RW, attachable_flags); |
124 | |
204 | |
125 | // objects attachable from perl (or any other extension) should include or |
205 | static unordered_vector<attachable *> mortals; |
126 | // derive using the curiously recurring template pattern, to avoid |
206 | MTH static void check_mortals (); |
127 | // virtual method calls etc. |
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128 | template<class subclass> |
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129 | struct attachable : attachable_base |
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130 | { |
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131 | static data_type get_dt () |
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132 | { |
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133 | return subclass::get_dt (); |
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134 | } |
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135 | |
207 | |
136 | void instantiate () |
208 | // object is delete'd after the refcount reaches 0 |
137 | { |
209 | MTH int refcnt_cnt () const; |
138 | if (attach) |
210 | // check wether the object has died and destroy |
139 | attachable_base::instantiate (get_dt (), static_cast<subclass *>(this)); |
211 | MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); } |
140 | } |
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141 | }; |
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142 | |
212 | |
143 | struct object_freezethaw |
213 | // destroy the object unless it was already destroyed |
144 | { |
214 | // this politely asks everybody interested the reduce |
145 | struct av *av; |
215 | // the refcount to 0 as soon as possible. |
146 | }; |
216 | MTH void destroy (); |
147 | |
217 | |
148 | struct object_freezer : object_freezethaw |
218 | // return wether an object was destroyed already |
149 | { |
219 | MTH bool destroyed () const { return attachable_flags & F_DESTROYED; } |
150 | struct sv *text; |
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151 | void *filename; |
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152 | |
220 | |
153 | object_freezer (const char *filename); |
221 | // destruct and free the memory for this object |
154 | ~object_freezer (); |
222 | virtual void do_delete (); |
155 | |
223 | |
156 | void put (attachable_base *ext); |
224 | virtual void gather_callbacks (AV *&callbacks, event_type event) const; |
157 | |
225 | |
158 | template<class subclass> |
226 | #if 0 |
159 | void put (attachable<subclass> *obj) |
227 | private: |
160 | { |
228 | static refcounted *rc_first; |
161 | put ((attachable_base *)obj); |
229 | refcounted *rc_next; |
162 | } |
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163 | |
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164 | operator bool () { return !!av; } |
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165 | }; |
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166 | |
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167 | struct object_thawer : object_freezethaw |
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168 | { |
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169 | FILE *fp; |
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170 | |
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171 | object_thawer (const char *filename = 0); |
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172 | ~object_thawer (); |
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173 | |
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174 | void get (data_type type, void *obj, attachable_base *ext, int oid); |
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175 | |
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176 | template<class subclass> |
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177 | void get (attachable<subclass> *obj, int oid) |
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178 | { |
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179 | if (av) |
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180 | get (subclass::get_dt (), (subclass *)obj, obj, oid); |
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181 | } |
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182 | |
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183 | operator FILE *() { return fp; } |
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184 | }; |
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185 | |
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186 | // compatibility support, should be removed when no longer needed |
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187 | int fprintf (object_freezer &freezer, const char *format, ...); |
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188 | int fputs (const char *s, object_freezer &freezer); |
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189 | |
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190 | #endif |
230 | #endif |
191 | |
231 | |
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232 | HV *self; // CF+ perl self |
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233 | AV *cb; // CF+ callbacks |
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234 | shstr attach; // generic extension attachment information |
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235 | |
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236 | void sever_self (); // sever this object from its self, if it has one. |
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237 | void optimise (); // possibly save some memory by destroying unneeded data |
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238 | |
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239 | attachable () |
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240 | : attachable_flags (0), self (0), cb (0), attach (0) |
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241 | { |
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242 | } |
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243 | |
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244 | attachable (const attachable &src) |
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245 | : attachable_flags (0), self (0), cb (0), attach (src.attach) |
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246 | { |
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247 | } |
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248 | |
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249 | // set a custom key to the given value, or delete it if value = 0 |
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250 | void set_key (const_utf8_string key, const_utf8_string value = 0, bool is_utf8 = 0); |
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251 | |
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252 | void set_key_text (const_utf8_string key, const_utf8_string value = 0) |
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253 | { |
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254 | set_key (key, value, 1); |
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255 | } |
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256 | |
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257 | void set_key_data (const_utf8_string key, const_utf8_string value = 0) |
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258 | { |
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259 | set_key (key, value, 0); |
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260 | } |
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261 | |
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262 | attachable &operator =(const attachable &src); |
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263 | |
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264 | // used to _quickly_ decide wether to shortcut the evaluation |
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265 | bool should_invoke (event_type event) |
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266 | { |
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267 | return ev_want_event [event] || cb; |
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268 | } |
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269 | |
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270 | bool invoke (event_type event, ...); |
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271 | |
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272 | MTH void instantiate (); |
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273 | void reattach (); |
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274 | |
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275 | protected: |
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276 | // do the real refcount checking work |
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277 | void do_check (); |
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278 | |
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279 | // the method that does the real destroy work |
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280 | virtual void do_destroy (); |
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281 | |
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282 | // destructor is protected, should not be called by anybody |
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283 | virtual ~attachable (); |
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284 | }; |
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285 | |
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286 | // the global object is a pseudo object that cares for the global events |
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287 | struct global : attachable |
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288 | { |
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289 | void gather_callbacks (AV *&callbacks, event_type event) const; |
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290 | }; |
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291 | |
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292 | extern struct global gbl_ev; |
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293 | |
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294 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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295 | |
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296 | #include "freezethaw.h" |
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297 | |
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298 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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299 | |
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300 | struct coroapi { |
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301 | static struct CoroAPI *GCoroAPI; |
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302 | |
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303 | static EV_ATOMIC_T cede_pending; |
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304 | |
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305 | static int nready () { return CORO_NREADY; } |
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306 | static int cede () { cede_pending = 0; return CORO_CEDE ; } |
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307 | |
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308 | static void do_cede_to_tick (); |
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309 | |
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310 | // actually cede's far more often |
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311 | static bool cede_to_tick () |
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312 | { |
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313 | if (expect_true (!cede_pending)) |
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314 | return false; |
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315 | |
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316 | do_cede_to_tick (); |
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317 | return true; |
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318 | } |
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319 | |
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320 | static void wait_for_tick (); |
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321 | static void wait_for_tick_begin (); |
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322 | }; |
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323 | |
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324 | struct evapi |
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325 | { |
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326 | static struct EVAPI *GEVAPI; |
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327 | }; |
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328 | |
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329 | struct iow : ev_io, evapi, callback<void (iow &, int)> |
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330 | { |
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331 | static void thunk (EV_P_ struct ev_io *w_, int revents) |
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332 | { |
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333 | iow &w = *static_cast<iow *>(w_); |
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334 | |
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335 | w (w, revents); |
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336 | } |
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337 | |
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338 | template<class O, class M> |
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339 | iow (O object, M method) |
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340 | : callback<void (iow &, int)> (object, method) |
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341 | { |
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342 | ev_init ((ev_io *)this, thunk); |
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343 | } |
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344 | |
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345 | void prio (int prio) |
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346 | { |
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347 | ev_set_priority ((ev_io *)this, prio); |
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348 | } |
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349 | |
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350 | void set (int fd, int events) |
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351 | { |
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352 | ev_io_set ((ev_io *)this, fd, events); |
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353 | } |
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354 | |
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355 | int poll () const { return events; } |
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356 | |
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357 | void poll (int events); |
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358 | |
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359 | void start () |
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360 | { |
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361 | ev_io_start (EV_DEFAULT, (ev_io *)this); |
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362 | } |
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363 | |
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364 | void stop () |
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365 | { |
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366 | ev_io_stop (EV_DEFAULT, (ev_io *)this); |
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367 | } |
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368 | |
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369 | ~iow () |
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370 | { |
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371 | stop (); |
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372 | } |
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373 | }; |
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374 | |
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375 | struct asyncw : ev_async, evapi, callback<void (ev_async &, int)> |
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376 | { |
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377 | static void thunk (EV_P_ struct ev_async *w_, int revents) |
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378 | { |
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379 | asyncw &w = *static_cast<asyncw *>(w_); |
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380 | |
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381 | w (w, revents); |
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382 | } |
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383 | |
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384 | template<class O, class M> |
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385 | asyncw (O object, M method) |
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386 | : callback<void (asyncw &, int)> (object, method) |
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387 | { |
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388 | ev_init ((ev_async *)this, thunk); |
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389 | } |
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390 | |
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391 | void start () |
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392 | { |
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393 | ev_async_start (EV_DEFAULT, (ev_async *)this); |
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394 | } |
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395 | |
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396 | void stop () |
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397 | { |
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398 | ev_async_stop (EV_DEFAULT, (ev_async *)this); |
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399 | } |
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400 | |
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401 | ~asyncw () |
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402 | { |
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403 | stop (); |
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404 | } |
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405 | }; |
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406 | |
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407 | #endif |
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408 | |