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2 | // cfperl.h perl interface |
2 | // cfperl.h perl interface |
3 | // |
3 | // |
4 | #ifndef CFPERL_H__ |
4 | #ifndef CFPERL_H__ |
5 | #define CFPERL_H__ |
5 | #define CFPERL_H__ |
6 | |
6 | |
7 | // could have used templates, but a more traditional C api |
7 | #include <cstdio> |
8 | // uses more explicit typing which is ok for this purpose. |
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9 | enum data_type { |
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10 | DT_END, // no further arguments |
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11 | DT_INT, |
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12 | DT_LONG, |
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13 | DT_DOUBLE, |
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14 | DT_STRING, // 0-terminated string |
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15 | DT_DATA, // string + length |
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16 | DT_OBJECT, |
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17 | DT_MAP, |
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18 | DT_PLAYER, |
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19 | DT_ARCH, |
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20 | DT_PARTY, |
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21 | DT_REGION, |
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22 | }; |
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23 | |
8 | |
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9 | using namespace std; |
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10 | |
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11 | #include <EXTERN.h> |
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12 | #include <perl.h> |
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13 | #include <XSUB.h> |
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14 | |
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15 | #include <EventAPI.h> |
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16 | |
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17 | #include "callback.h" |
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18 | |
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19 | // optimisations/workaround for functions requiring my_perl in scope (anti-bloat) |
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20 | #undef localtime |
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21 | #undef srand48 |
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22 | #undef drand48 |
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23 | #undef srandom |
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24 | #undef readdir |
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25 | #undef getprotobyname |
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26 | #undef gethostbyname |
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27 | #undef ctime |
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28 | #undef strerror |
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29 | |
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30 | // perl bug #40256: perl does overwrite those with reentrant versions |
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31 | // but does not initialise their state structures. |
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32 | #undef random |
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33 | #undef crypt |
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34 | |
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35 | void cfperl_init (); |
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36 | void cfperl_main (); |
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37 | |
24 | enum event_klass { |
38 | enum event_klass |
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39 | { |
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40 | KLASS_NONE, |
25 | KLASS_GLOBAL, |
41 | KLASS_GLOBAL, |
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42 | KLASS_SOCKET, |
26 | KLASS_PLAYER, |
43 | KLASS_PLAYER, |
27 | KLASS_OBJECT, |
44 | KLASS_OBJECT, |
28 | KLASS_MAP, |
45 | KLASS_MAP, |
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46 | KLASS_COMMAND, |
29 | }; |
47 | }; |
30 | |
48 | |
31 | enum event_type { |
49 | enum event_type |
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50 | { |
32 | # define def(klass,name) EV_ ## klass ## name, |
51 | # define def(klass,name) EVENT_ ## klass ## _ ## name, |
33 | # include "eventinc.h" |
52 | # include "eventinc.h" |
34 | # undef def |
53 | # undef def |
35 | NUM_EVENT_TYPES |
54 | NUM_EVENT_TYPES |
36 | }; |
55 | }; |
37 | |
56 | |
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57 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
38 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
58 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
39 | #define ARG_LONG(v) DT_LONG , static_cast<long> (v) |
59 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
40 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
60 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
41 | #define ARG_STRING(v) DT_STRING, static_cast<char *> (v) |
61 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
42 | #define ARG_DATA(s,l) DT_DATA , static_cast<void *> (s), (l) |
62 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l) |
43 | #define ARG_OBJECT(o) DT_OBJECT, static_cast<struct object *> (o) |
63 | #define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o) |
44 | #define ARG_MAP(o) DT_MAP , static_cast<struct mapstruct *> (o) |
64 | #define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) |
45 | #define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *> (o) |
65 | #define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) |
46 | #define ARG_ARCH(o) DT_ARCH , static_cast<struct archetype *> (o) |
66 | #define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) |
47 | #define ARG_PARTY(o) DT_PARTY , static_cast<struct party *> (o) |
67 | #define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) |
48 | #define ARG_REGION(o) DT_REGION, static_cast<struct region *> (o) |
68 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) |
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69 | #define ARG_SOCKET(o) DT_SOCKET, (void *)static_cast<client_socket *> (o) |
49 | |
70 | |
50 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
71 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
51 | |
72 | |
52 | // all these return true when the normal event processing should be skipped (if any) |
73 | // all these return true when the normal event processing should be skipped (if any) |
53 | #define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## event, ## __VA_ARGS__, DT_END) |
74 | #define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) |
54 | |
75 | |
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76 | #define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) |
55 | #define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) |
77 | #define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
56 | #define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) |
78 | #define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) |
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79 | #define INVOKE_SOCKET(event, ns, ...) INVOKE_(EVENT_ ## SOCKET ## _ ## event, ARG_SOCKET (ns), ## __VA_ARGS__) |
57 | #define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) |
80 | #define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) |
58 | #define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) |
81 | #define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) |
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82 | |
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83 | //TODO should index into @result |
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84 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
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85 | #define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE) |
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86 | #define RESULT_INT(idx) RESULT(idx, INT) |
59 | |
87 | |
60 | bool cfperl_invoke (event_type event, ...); |
88 | bool cfperl_invoke (event_type event, ...); |
61 | void cfperl_free_ob (object *op); |
89 | double cfperl_result_DOUBLE (int idx); |
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90 | int cfperl_result_INT (int idx); |
62 | |
91 | |
63 | void cfperl_init (); |
92 | struct attachable_base |
64 | void cfperl_main (); |
93 | { |
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94 | SV *self; // CF+ perl self |
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95 | AV *cb; // CF+ callbacks |
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96 | shstr attach; // generic extension attachment information |
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97 | |
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98 | void clear (); // called when free'ing objects |
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99 | void optimise (); // possibly save some memory by destroying unneeded data |
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100 | void instantiate (data_type type, void *obj); |
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101 | |
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102 | void attachable_clear () |
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103 | { |
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104 | self = 0; |
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105 | cb = 0; |
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106 | attach = 0; |
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107 | } |
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108 | |
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109 | attachable_base () |
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110 | { |
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111 | attachable_clear (); |
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112 | } |
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113 | |
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114 | ~attachable_base () |
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115 | { |
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116 | clear (); |
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117 | } |
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118 | |
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119 | attachable_base (const attachable_base &src) |
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120 | : self (0), cb (0), attach (src.attach) |
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121 | { |
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122 | } |
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123 | |
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124 | attachable_base &operator =(const attachable_base &src) |
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125 | { |
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126 | clear (); |
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127 | attach = src.attach; |
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128 | return *this; |
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129 | } |
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130 | }; |
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131 | |
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132 | // objects attachable from perl (or any other extension) should include or |
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133 | // derive using the curiously recurring template pattern, to avoid |
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134 | // virtual method calls etc. |
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135 | template<class subclass> |
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136 | struct attachable : attachable_base |
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137 | { |
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138 | void instantiate () |
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139 | { |
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140 | if (attach) |
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141 | attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this)); |
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142 | } |
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143 | }; |
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144 | |
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145 | struct object_freezer : dynbuf |
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146 | { |
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147 | AV *av; |
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148 | |
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149 | object_freezer (); |
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150 | ~object_freezer (); |
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151 | |
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152 | void put (attachable_base *ext); |
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153 | |
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154 | template<class subclass> |
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155 | void put (attachable<subclass> *obj) |
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156 | { |
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157 | put ((attachable_base *)obj); |
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158 | } |
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159 | |
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160 | // used only for user-defined key-value pairs |
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161 | void put (const shstr &k, const shstr &v) |
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162 | { |
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163 | add (k); |
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164 | |
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165 | if (v) |
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166 | add (' '), add (v); |
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167 | |
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168 | add ('\n'); |
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169 | } |
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170 | |
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171 | //TODO//temporary, used only for saving body locations |
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172 | void put (const char *k, int v) |
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173 | { |
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174 | add (k); |
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175 | add (' '); |
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176 | add (sint32 (v)); |
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177 | add ('\n'); |
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178 | } |
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179 | |
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180 | template<typename T> |
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181 | void put_string (keyword k, const T &v) |
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182 | { |
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183 | int klen = keyword_len [k]; |
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184 | int vlen = v ? strlen (v) + 1 : 0; |
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185 | |
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186 | char *p = (char *)alloc (klen + vlen + 1); |
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187 | |
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188 | memcpy (p, keyword_str [k], klen); p += klen; |
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189 | |
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190 | if (v) |
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191 | { |
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192 | *p++ = ' '; vlen--; |
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193 | memcpy (p, v, vlen); p += vlen; |
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194 | } |
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195 | |
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196 | *p = '\n'; |
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197 | } |
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198 | |
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199 | void put (keyword k, const char *v) |
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200 | { |
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201 | put_string (k, v); |
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202 | } |
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203 | |
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204 | void put (keyword k, const shstr &v) |
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205 | { |
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206 | put_string (k, v); |
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207 | } |
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208 | |
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209 | void put (keyword k, double v) |
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210 | { |
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211 | char buf [128]; |
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212 | |
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213 | snprintf (buf, 128, "%.7g", v); |
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214 | |
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215 | put (k, (const char *)buf); |
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216 | } |
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217 | |
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218 | void put_(keyword k, sint64 v) |
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219 | { |
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220 | add (keyword_str [k], keyword_len [k]); |
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221 | add (' '); |
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222 | add (v); |
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223 | add ('\n'); |
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224 | } |
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225 | |
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226 | void put_(keyword k, sint32 v) |
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227 | { |
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228 | add (keyword_str [k], keyword_len [k]); |
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229 | add (' '); |
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230 | add (v); |
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231 | add ('\n'); |
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232 | } |
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233 | |
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234 | void put (keyword kbeg, keyword kend, const shstr &v) |
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235 | { |
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236 | add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n'); |
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237 | |
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238 | if (v) |
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239 | { |
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240 | add (v); |
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241 | add ('\n'); |
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242 | } |
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243 | |
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244 | add (keyword_str [kend], keyword_len [kend]); add ('\n'); |
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245 | } |
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246 | |
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247 | void put (keyword k, float v) { put (k, (double)v); } |
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248 | void put (keyword k, signed char v) { put_(k, (sint32)v); } |
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249 | void put (keyword k, unsigned char v) { put_(k, (sint32)v); } |
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250 | void put (keyword k, signed short v) { put_(k, (sint32)v); } |
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251 | void put (keyword k, unsigned short v) { put_(k, (sint32)v); } |
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252 | void put (keyword k, signed int v) { put_(k, (sint32)v); } |
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253 | void put (keyword k, unsigned int v) { put_(k, (sint64)v); } |
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254 | void put (keyword k, signed long v) { put_(k, (sint64)v); } |
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255 | void put (keyword k, unsigned long v) { put_(k, (sint64)v); } |
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256 | void put (keyword k, signed long long v) { put_(k, (sint64)v); } |
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257 | void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } |
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258 | |
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259 | template<typename T> |
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260 | void put (keyword k, const T *v) |
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261 | { |
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262 | if (v) |
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263 | put (k, v->name); |
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264 | else |
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265 | put (k, (const char *)0); |
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266 | } |
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267 | |
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268 | template<typename T> |
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269 | void put (keyword k, const refptr<T> &v) |
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270 | { |
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271 | put (k, (T *)v); |
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272 | } |
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273 | |
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274 | bool save (const char *filename); |
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275 | char *as_string (); // like strdup |
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276 | |
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277 | operator bool () { return !!av; } |
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278 | }; |
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279 | |
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280 | // compatibility support, should be removed when no longer needed |
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281 | int fprintf (object_freezer &freezer, const char *format, ...); |
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282 | int fputs (const char *s, object_freezer &freezer); |
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283 | |
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284 | struct object_thawer |
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285 | { |
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286 | SV *text; // text part |
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287 | AV *av; // perl part |
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288 | char *line; // current beginning of line |
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289 | char *last_value; |
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290 | |
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291 | operator bool () { return !!text; } |
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292 | |
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293 | object_thawer (const char *filename = 0); |
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294 | object_thawer (const char *data, AV *perlav); |
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295 | ~object_thawer (); |
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296 | |
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297 | void get (data_type type, void *obj, attachable_base *ext, int oid); |
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298 | |
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299 | template<class subclass> |
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300 | void get (attachable<subclass> *obj, int oid) |
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301 | { |
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302 | if (av) |
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303 | get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid); |
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304 | } |
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305 | |
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306 | keyword get_kv (); // also parse value for later use |
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307 | |
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308 | const char *get_str () { return last_value; } // may be 0 |
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309 | |
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310 | void get (shstr &sh) const; |
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311 | void get_ornull (shstr &sh) const { sh = last_value; } |
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312 | void get_ml (keyword kend, shstr &sh); |
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313 | |
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314 | sint32 get_sint32 () const; |
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315 | sint64 get_sint64 () const; |
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316 | double get_double () const; |
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317 | |
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318 | void get (float &v) { v = get_double (); } |
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319 | void get (double &v) { v = get_double (); } |
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320 | |
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321 | void get (sint8 &i) { i = get_sint32 (); } |
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322 | void get (uint8 &i) { i = get_sint32 (); } |
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323 | void get (sint16 &i) { i = get_sint32 (); } |
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324 | void get (uint16 &i) { i = get_sint32 (); } |
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325 | void get (sint32 &i) { i = get_sint32 (); } |
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326 | |
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327 | void get (uint32 &i) { i = get_sint64 (); } |
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328 | void get (sint64 &i) { i = get_sint64 (); } |
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329 | }; |
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330 | |
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331 | char *fgets (char *s, int n, object_thawer &thawer); |
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332 | |
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333 | struct watcher_base |
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334 | { |
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335 | static struct EventAPI *GEventAPI; |
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336 | }; |
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337 | |
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338 | template<class base> |
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339 | struct watcher : watcher_base |
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340 | { |
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341 | base *pe; |
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342 | |
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343 | void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); } |
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344 | void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); } |
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345 | void now () { GEventAPI->now ((pe_watcher *)pe); } |
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346 | void suspend () { GEventAPI->suspend ((pe_watcher *)pe); } |
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347 | void resume () { GEventAPI->resume ((pe_watcher *)pe); } |
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348 | |
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349 | void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; } |
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350 | |
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351 | ~watcher () |
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352 | { |
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353 | cancel (); |
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354 | } |
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355 | |
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356 | private: |
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357 | void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private |
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358 | }; |
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359 | |
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360 | struct iow : watcher<pe_io>, callback<void (iow &, int)> |
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361 | { |
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362 | template<class O, class M> |
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363 | iow (O object, M method) |
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364 | : callback<void (iow &, int)> (object, method) |
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365 | { |
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366 | alloc (); |
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367 | } |
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368 | |
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369 | iow &fd (int fd); |
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370 | int poll (); |
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371 | iow &poll (int events); |
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372 | |
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373 | private: |
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374 | void alloc (); |
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375 | }; |
65 | |
376 | |
66 | #endif |
377 | #endif |
67 | |
378 | |