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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 | |
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7 | #include <cstdio> |
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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 | |
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14 | #include "keyword.h" |
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15 | |
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16 | // optimisations/workaround for functions requiring my_perl in scope (anti-bloat) |
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17 | #undef localtime |
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18 | #undef srand48 |
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19 | #undef drand48 |
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20 | #undef srandom |
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21 | #undef readdir |
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22 | #undef getprotobyname |
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23 | #undef gethostbyname |
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24 | #undef ctime |
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25 | #undef strerror |
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26 | |
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27 | // perl bug #40256: perl does overwrite those with reentrant versions |
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28 | // but does not initialise their state structures. |
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29 | #undef random |
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30 | #undef crypt |
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31 | |
7 | struct pl; |
32 | struct pl; |
8 | struct object; |
33 | struct object; |
9 | struct mapstruct; |
34 | struct mapstruct; |
10 | |
35 | |
11 | void cfperl_init (); |
36 | void cfperl_init (); |
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37 | void cfperl_boot (); |
12 | void cfperl_main (); |
38 | void cfperl_main (); |
13 | |
39 | |
14 | // could have used templates, but a more traditional C api |
40 | // could have used templates, but a more traditional C api |
15 | // uses more explicit typing which is ok for this purpose. |
41 | // uses more explicit typing which is ok for this purpose. |
16 | enum data_type |
42 | enum data_type |
17 | { |
43 | { |
18 | DT_END, // no further arguments |
44 | DT_END, // no further arguments |
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45 | DT_AV, // perl-only av that needs to be flattened out |
19 | DT_INT, |
46 | DT_INT, |
20 | DT_INT64, |
47 | DT_INT64, |
21 | DT_DOUBLE, |
48 | DT_DOUBLE, |
22 | DT_STRING, // 0-terminated string |
49 | DT_STRING, // 0-terminated string |
23 | DT_DATA, // string + length |
50 | DT_DATA, // string + length |
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25 | DT_MAP, |
52 | DT_MAP, |
26 | DT_PLAYER, |
53 | DT_PLAYER, |
27 | DT_ARCH, |
54 | DT_ARCH, |
28 | DT_PARTY, |
55 | DT_PARTY, |
29 | DT_REGION, |
56 | DT_REGION, |
30 | DT_AV, // av that needs to be flattened out |
57 | |
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58 | NUM_DATA_TYPES |
31 | }; |
59 | }; |
32 | |
60 | |
33 | enum event_klass |
61 | enum event_klass |
34 | { |
62 | { |
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63 | KLASS_NONE, |
35 | KLASS_GLOBAL, |
64 | KLASS_GLOBAL, |
36 | KLASS_PLAYER, |
65 | KLASS_PLAYER, |
37 | KLASS_OBJECT, |
66 | KLASS_OBJECT, |
38 | KLASS_MAP, |
67 | KLASS_MAP, |
39 | }; |
68 | }; |
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44 | # include "eventinc.h" |
73 | # include "eventinc.h" |
45 | # undef def |
74 | # undef def |
46 | NUM_EVENT_TYPES |
75 | NUM_EVENT_TYPES |
47 | }; |
76 | }; |
48 | |
77 | |
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78 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
49 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
79 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
50 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
80 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
51 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
81 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
52 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
82 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
53 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) |
83 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) |
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59 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) |
89 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) |
60 | |
90 | |
61 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
91 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
62 | |
92 | |
63 | // all these return true when the normal event processing should be skipped (if any) |
93 | // all these return true when the normal event processing should be skipped (if any) |
64 | #define INVOKE(klass, event, ...) cfperl_invoke (EVENT_ ## klass ## _ ## event, ## __VA_ARGS__, DT_END) |
94 | #define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) |
65 | |
95 | |
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96 | #define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) |
66 | #define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) |
97 | #define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
67 | #define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) |
98 | #define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) |
68 | #define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) |
99 | #define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) |
69 | #define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) |
100 | #define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) |
70 | |
101 | |
71 | //TODO should index into @result |
102 | //TODO should index into @result |
72 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
103 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
73 | #define RESULT_INT(idx) RESULT(idx, INT) |
104 | #define RESULT_INT(idx) RESULT(idx, INT) |
74 | |
105 | |
75 | bool cfperl_invoke (event_type event, ...); |
106 | bool cfperl_invoke (event_type event, ...); |
76 | int cfperl_result_INT (int idx); |
107 | int cfperl_result_INT (int idx); |
77 | |
108 | |
78 | struct extendable_base |
109 | struct attachable_base |
79 | { |
110 | { |
80 | void *self, *cb; // CF+ perl self and callback |
111 | SV *self; |
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112 | AV *cb; // CF+ perl self and callback |
81 | const char *attach; // generic extension attachment information |
113 | const char *attach; // generic extension attachment information |
82 | |
114 | |
83 | void clear (); // called when free'ing objects |
115 | void clear (); // called when free'ing objects |
84 | void optimise (); // possibly save some memory by destroying unneeded data |
116 | void optimise (); // possibly save some memory by destroying unneeded data |
85 | void reattach (data_type type, void *self); // called after swapin |
117 | void instantiate (data_type type, void *obj); |
86 | }; |
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87 | |
118 | |
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119 | void attachable_init () |
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120 | { |
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121 | self = 0; |
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122 | cb = 0; |
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123 | attach = 0; |
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124 | } |
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125 | }; |
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126 | |
88 | // objects extendable from perl (or any other extension) should include or |
127 | // objects attachable from perl (or any other extension) should include or |
89 | // derive using the curiously recurring template pattern, to avoid |
128 | // derive using the curiously recurring template pattern, to avoid |
90 | // virtual method calls etc. |
129 | // virtual method calls etc. |
91 | template<class subclass> |
130 | template<class subclass> |
92 | struct extendable : extendable_base |
131 | struct attachable : attachable_base |
93 | { |
132 | { |
94 | void reattach () |
133 | static data_type get_dt () |
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134 | { |
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135 | return subclass::get_dt (); |
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136 | } |
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137 | |
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138 | void instantiate () |
95 | { |
139 | { |
96 | if (attach) |
140 | if (attach) |
97 | extendable_base::reattach ( |
141 | attachable_base::instantiate (get_dt (), static_cast<subclass *>(this)); |
98 | static_cast<subclass *>(this)->get_dt (), |
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99 | static_cast<subclass *>(this) |
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100 | ); |
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101 | } |
142 | } |
102 | }; |
143 | }; |
103 | |
144 | |
104 | struct object_freezer |
145 | struct object_freezer |
105 | { |
146 | { |
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147 | AV *av; |
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148 | SV *text; |
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149 | |
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150 | object_freezer (); |
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151 | ~object_freezer (); |
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152 | |
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153 | void put (attachable_base *ext); |
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154 | |
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155 | template<class subclass> |
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156 | void put (attachable<subclass> *obj) |
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157 | { |
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158 | put ((attachable_base *)obj); |
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159 | } |
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160 | |
106 | const char *filename; |
161 | bool save (const char *filename); |
107 | void *av; |
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108 | |
162 | |
109 | object_freezer (const char *filename) : filename (filename) { } |
163 | operator bool () { return !!av; } |
110 | void put (extendable_base *object); |
164 | }; |
111 | void finish (); |
165 | |
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166 | // compatibility support, should be removed when no longer needed |
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167 | int fprintf (object_freezer &freezer, const char *format, ...); |
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168 | int fputs (const char *s, object_freezer &freezer); |
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169 | |
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170 | // a single key-value line from a file |
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171 | struct token { |
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172 | keyword k; |
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173 | const char *v; |
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174 | |
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175 | token (keyword k, const char *v = 0) : k(k), v(v) { } |
112 | }; |
176 | }; |
113 | |
177 | |
114 | struct object_thawer |
178 | struct object_thawer |
115 | { |
179 | { |
116 | void *av; |
180 | AV *av; |
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181 | FILE *fp; |
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182 | char line[1024]; |
117 | |
183 | |
118 | object_thawer (const char *filename); |
184 | object_thawer (const char *filename = 0); |
119 | void get (extendable_base *object); |
185 | ~object_thawer (); |
120 | void finish (); |
186 | |
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187 | void get (data_type type, void *obj, attachable_base *ext, int oid); |
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188 | |
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189 | template<class subclass> |
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190 | void get (attachable<subclass> *obj, int oid) |
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191 | { |
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192 | if (av) |
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193 | get (subclass::get_dt (), (subclass *)obj, obj, oid); |
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194 | } |
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195 | |
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196 | token get_token (); |
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197 | |
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198 | operator FILE *() { return fp; } |
121 | }; |
199 | }; |
122 | |
200 | |
123 | #endif |
201 | #endif |
124 | |
202 | |