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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_INT64, |
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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 | |
8 | |
23 | // following are only for cfapi-compatibility |
9 | using namespace std; |
24 | DT_INT_PTR, |
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25 | DT_INT64_PTR, |
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26 | DT_DOUBLE_PTR, |
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27 | }; |
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28 | |
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 | // optimisations/workaround for functions requiring my_perl in scope (anti-bloat) |
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16 | #undef localtime |
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17 | #undef srand48 |
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18 | #undef drand48 |
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19 | #undef srandom |
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20 | #undef readdir |
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21 | #undef getprotobyname |
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22 | #undef gethostbyname |
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23 | #undef ctime |
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24 | #undef strerror |
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25 | |
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26 | // perl bug #40256: perl does overwrite those with reentrant versions |
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27 | // but does not initialise their state structures. |
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28 | #undef random |
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29 | #undef crypt |
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30 | |
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31 | void cfperl_init (); |
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32 | void cfperl_main (); |
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33 | |
29 | enum event_klass { |
34 | enum event_klass |
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35 | { |
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36 | KLASS_NONE, |
30 | KLASS_GLOBAL, |
37 | KLASS_GLOBAL, |
31 | KLASS_PLAYER, |
38 | KLASS_PLAYER, |
32 | KLASS_OBJECT, |
39 | KLASS_OBJECT, |
33 | KLASS_MAP, |
40 | KLASS_MAP, |
34 | }; |
41 | }; |
35 | |
42 | |
36 | enum event_type { |
43 | enum event_type |
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44 | { |
37 | # define def(klass,name) EV_ ## klass ## _ ## name, |
45 | # define def(klass,name) EVENT_ ## klass ## _ ## name, |
38 | # include "eventinc.h" |
46 | # include "eventinc.h" |
39 | # undef def |
47 | # undef def |
40 | NUM_EVENT_TYPES |
48 | NUM_EVENT_TYPES |
41 | }; |
49 | }; |
42 | |
50 | |
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51 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
43 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
52 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
44 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
53 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
45 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
54 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
46 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
55 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
47 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) |
56 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) |
48 | #define ARG_OBJECT(o) DT_OBJECT, static_cast<struct object *> (o) |
57 | #define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) |
49 | #define ARG_MAP(o) DT_MAP , static_cast<struct mapstruct *> (o) |
58 | #define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) |
50 | #define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *> (o) |
59 | #define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) |
51 | #define ARG_ARCH(o) DT_ARCH , static_cast<struct archetype *> (o) |
60 | #define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) |
52 | #define ARG_PARTY(o) DT_PARTY , static_cast<struct party *> (o) |
61 | #define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) |
53 | #define ARG_REGION(o) DT_REGION, static_cast<struct region *> (o) |
62 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) |
54 | |
63 | |
55 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
64 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
56 | |
65 | |
57 | // all these return true when the normal event processing should be skipped (if any) |
66 | // all these return true when the normal event processing should be skipped (if any) |
58 | #define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## _ ## event, ## __VA_ARGS__, DT_END) |
67 | #define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) |
59 | |
68 | |
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69 | #define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) |
60 | #define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) |
70 | #define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
61 | #define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) |
71 | #define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) |
62 | #define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) |
72 | #define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) |
63 | #define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) |
73 | #define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) |
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74 | |
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75 | //TODO should index into @result |
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76 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
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77 | #define RESULT_INT(idx) RESULT(idx, INT) |
64 | |
78 | |
65 | bool cfperl_invoke (event_type event, ...); |
79 | bool cfperl_invoke (event_type event, ...); |
66 | void cfperl_free_ob (object *op); |
80 | int cfperl_result_INT (int idx); |
67 | |
81 | |
68 | void cfperl_init (); |
82 | struct attachable_base |
69 | void cfperl_main (); |
83 | { |
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84 | SV *self; |
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85 | AV *cb; // CF+ perl self and callback |
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86 | shstr attach; // generic extension attachment information |
70 | |
87 | |
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88 | void clear (); // called when free'ing objects |
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89 | void optimise (); // possibly save some memory by destroying unneeded data |
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90 | void instantiate (data_type type, void *obj); |
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91 | |
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92 | void attachable_clear () |
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93 | { |
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94 | self = 0; |
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95 | cb = 0; |
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96 | attach = 0; |
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97 | } |
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98 | |
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99 | attachable_base () |
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100 | { |
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101 | attachable_clear (); |
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102 | } |
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103 | |
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104 | ~attachable_base () |
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105 | { |
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106 | clear (); |
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107 | } |
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108 | |
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109 | attachable_base (const attachable_base &src) |
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110 | : self (0), cb (0), attach (src.attach) |
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111 | { |
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112 | } |
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113 | |
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114 | attachable_base &operator = (const attachable_base &src) |
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115 | { |
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116 | clear (); |
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117 | attach = src.attach; |
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118 | return *this; |
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119 | } |
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120 | }; |
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121 | |
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122 | // objects attachable from perl (or any other extension) should include or |
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123 | // derive using the curiously recurring template pattern, to avoid |
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124 | // virtual method calls etc. |
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125 | template<class subclass> |
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126 | struct attachable : attachable_base |
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127 | { |
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128 | void instantiate () |
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129 | { |
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130 | if (attach) |
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131 | attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this)); |
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132 | } |
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133 | }; |
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134 | |
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135 | struct object_freezer : dynbuf |
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136 | { |
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137 | AV *av; |
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138 | |
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139 | object_freezer (); |
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140 | ~object_freezer (); |
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141 | |
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142 | void put (attachable_base *ext); |
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143 | |
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144 | template<class subclass> |
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145 | void put (attachable<subclass> *obj) |
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146 | { |
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147 | put ((attachable_base *)obj); |
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148 | } |
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149 | |
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150 | //TODO//temporary |
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151 | void put (const char *k, const char *v) |
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152 | { |
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153 | add (k); |
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154 | |
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155 | if (v) |
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156 | add (' '), add (v); |
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157 | |
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158 | add ('\n'); |
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159 | } |
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160 | |
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161 | //TODO//temporary |
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162 | void put (const char *k, int v) |
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163 | { |
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164 | add (k); |
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165 | add (' '); |
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166 | add (sint32 (v)); |
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167 | add ('\n'); |
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168 | } |
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169 | |
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170 | #if 1 |
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171 | void put (keyword k, const char *v) |
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172 | { |
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173 | int klen = keyword_len [k]; |
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174 | int vlen = v ? strlen (v) + 1 : 0; |
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175 | |
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176 | char *p = (char *)alloc (klen + vlen + 1); |
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177 | |
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178 | memcpy (p, keyword_str [k], klen); p += klen; |
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179 | |
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180 | if (v) |
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181 | { |
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182 | *p++ = ' '; vlen--; //TODO//cf compatibility always add space |
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183 | memcpy (p, v, vlen); p += vlen; |
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184 | } |
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185 | |
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186 | *p = '\n'; |
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187 | } |
71 | #endif |
188 | #endif |
72 | |
189 | |
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190 | #if 0 |
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191 | void put (keyword k, const shstr &v) |
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192 | { |
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193 | int klen = keyword_len [k]; |
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194 | int vlen = v ? v.length () + 1 : 0; |
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195 | |
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196 | char *p = (char *)alloc (klen + vlen + 1); |
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197 | |
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198 | memcpy (p, keyword_str [k], klen); p += klen; |
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199 | |
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200 | if (v) |
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201 | { |
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202 | *p++ = ' '; vlen--; //TODO//cf compatibility always add space |
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203 | memcpy (p, v, vlen); p += vlen; |
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204 | } |
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205 | |
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206 | *p = '\n'; |
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207 | } |
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208 | #endif |
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209 | |
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210 | void put (keyword k, double v) |
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211 | { |
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212 | char buf [128]; |
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213 | |
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214 | snprintf (buf, 128, "%.7g", v); |
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215 | |
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216 | put (k, (const char *)buf); |
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217 | } |
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218 | |
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219 | void put_(keyword k, sint64 v) |
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220 | { |
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221 | add (keyword_str [k], keyword_len [k]); |
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222 | add (' '); |
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223 | add (v); |
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224 | add ('\n'); |
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225 | } |
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226 | |
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227 | void put_(keyword k, sint32 v) |
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228 | { |
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229 | add (keyword_str [k], keyword_len [k]); |
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230 | add (' '); |
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231 | add (v); |
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232 | add ('\n'); |
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233 | } |
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234 | |
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235 | void put (keyword kbeg, keyword kend, const shstr &v) |
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236 | { |
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237 | add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n'); |
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238 | |
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239 | if (v) |
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240 | { |
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241 | add (v); |
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242 | add ('\n'); |
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243 | } |
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244 | |
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245 | add (keyword_str [kend], keyword_len [kend]); add ('\n'); |
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246 | } |
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247 | |
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248 | void put (keyword k, float v) { put (k, (double)v); } |
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249 | void put (keyword k, signed char v) { put_(k, (sint32)v); } |
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250 | void put (keyword k, unsigned char v) { put_(k, (sint32)v); } |
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251 | void put (keyword k, signed short v) { put_(k, (sint32)v); } |
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252 | void put (keyword k, unsigned short v) { put_(k, (sint32)v); } |
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253 | void put (keyword k, signed int v) { put_(k, (sint32)v); } |
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254 | void put (keyword k, unsigned int v) { put_(k, (sint64)v); } |
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255 | void put (keyword k, signed long v) { put_(k, (sint64)v); } |
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256 | void put (keyword k, unsigned long v) { put_(k, (sint64)v); } |
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257 | void put (keyword k, signed long long v) { put_(k, (sint64)v); } |
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258 | void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } |
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259 | |
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260 | template<typename T> |
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261 | void put (keyword k, T *v) |
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262 | { |
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263 | if (v) |
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264 | put (k, v->name); |
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265 | else |
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266 | put (k, (const char *)0); |
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267 | } |
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268 | |
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269 | bool save (const char *filename); |
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270 | |
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271 | operator bool () { return !!av; } |
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272 | }; |
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273 | |
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274 | // compatibility support, should be removed when no longer needed |
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275 | int fprintf (object_freezer &freezer, const char *format, ...); |
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276 | int fputs (const char *s, object_freezer &freezer); |
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277 | |
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278 | struct object_thawer |
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279 | { |
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280 | SV *text; // text part |
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281 | AV *av; // perl part |
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282 | char *line; // current beginning of line |
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283 | char *last_value; |
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284 | |
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285 | operator bool () { return !!text; } |
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286 | |
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287 | object_thawer (const char *filename = 0); |
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288 | ~object_thawer (); |
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289 | |
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290 | void get (data_type type, void *obj, attachable_base *ext, int oid); |
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291 | |
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292 | template<class subclass> |
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293 | void get (attachable<subclass> *obj, int oid) |
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294 | { |
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295 | if (av) |
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296 | get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid); |
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297 | } |
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298 | |
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299 | keyword get_kv (); // also parse value for later use |
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300 | |
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301 | const char *get_str () { return last_value; } // may be 0 |
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302 | |
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303 | void get (shstr &sh) const; |
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304 | void get_ornull (shstr &sh) const { sh = last_value; } |
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305 | void get_ml (keyword kend, shstr &sh); |
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306 | |
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307 | sint32 get_sint32 () const; |
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308 | sint64 get_sint64 () const; |
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309 | double get_double () const; |
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310 | |
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311 | void get (float &v) { v = get_double (); } |
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312 | void get (double &v) { v = get_double (); } |
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313 | |
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314 | void get (sint8 &i) { i = get_sint32 (); } |
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315 | void get (uint8 &i) { i = get_sint32 (); } |
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316 | void get (sint16 &i) { i = get_sint32 (); } |
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317 | void get (uint16 &i) { i = get_sint32 (); } |
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318 | void get (sint32 &i) { i = get_sint32 (); } |
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319 | |
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320 | void get (uint32 &i) { i = get_sint64 (); } |
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321 | void get (sint64 &i) { i = get_sint64 (); } |
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322 | }; |
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323 | |
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324 | char *fgets (char *s, int n, object_thawer &thawer); |
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325 | |
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326 | #endif |
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327 | |