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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 | struct pl; |
7 | #include <cstdio> |
8 | struct object; |
8 | |
9 | struct mapstruct; |
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 | // 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 |
10 | |
30 | |
11 | void cfperl_init (); |
31 | void cfperl_init (); |
12 | void cfperl_main (); |
32 | void cfperl_main (); |
13 | |
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14 | // could have used templates, but a more traditional C api |
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15 | // uses more explicit typing which is ok for this purpose. |
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16 | enum data_type |
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17 | { |
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18 | DT_END, // no further arguments |
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19 | DT_AV, // perl-only av that needs to be flattened out |
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20 | DT_INT, |
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21 | DT_INT64, |
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22 | DT_DOUBLE, |
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23 | DT_STRING, // 0-terminated string |
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24 | DT_DATA, // string + length |
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25 | DT_OBJECT, |
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26 | DT_MAP, |
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27 | DT_PLAYER, |
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28 | DT_ARCH, |
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29 | DT_PARTY, |
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30 | DT_REGION, |
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31 | |
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32 | NUM_DATA_TYPES |
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33 | }; |
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34 | |
33 | |
35 | enum event_klass |
34 | enum event_klass |
36 | { |
35 | { |
37 | KLASS_NONE, |
36 | KLASS_NONE, |
38 | KLASS_GLOBAL, |
37 | KLASS_GLOBAL, |
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52 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
51 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
53 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
52 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
54 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
53 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
55 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
54 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
56 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
55 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
57 | #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), int (l) |
58 | #define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) |
57 | #define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o) |
59 | #define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) |
58 | #define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) |
60 | #define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) |
59 | #define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) |
61 | #define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) |
60 | #define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) |
62 | #define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) |
61 | #define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) |
63 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) |
62 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) |
64 | |
63 | |
65 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
64 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
66 | |
65 | |
67 | // 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) |
68 | #define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) |
67 | #define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) |
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74 | #define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) |
73 | #define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) |
75 | |
74 | |
76 | //TODO should index into @result |
75 | //TODO should index into @result |
77 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
76 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
78 | #define RESULT_INT(idx) RESULT(idx, INT) |
77 | #define RESULT_INT(idx) RESULT(idx, INT) |
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78 | #define RESULT_MAP(idx) RESULT(idx, MAP) |
79 | |
79 | |
80 | bool cfperl_invoke (event_type event, ...); |
80 | bool cfperl_invoke (event_type event, ...); |
81 | int cfperl_result_INT (int idx); |
81 | int cfperl_result_INT (int idx); |
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82 | int cfperl_result_MAP (int idx); |
82 | |
83 | |
83 | struct attachable_base |
84 | struct attachable_base |
84 | { |
85 | { |
85 | void *self, *cb; // CF+ perl self and callback |
86 | SV *self; |
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87 | AV *cb; // CF+ perl self and callback |
86 | const char *attach; // generic extension attachment information |
88 | shstr attach; // generic extension attachment information |
87 | |
89 | |
88 | void clear (); // called when free'ing objects |
90 | void clear (); // called when free'ing objects |
89 | void optimise (); // possibly save some memory by destroying unneeded data |
91 | void optimise (); // possibly save some memory by destroying unneeded data |
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92 | void instantiate (data_type type, void *obj); |
90 | |
93 | |
91 | void attachable_init () |
94 | void attachable_clear () |
92 | { |
95 | { |
93 | self = cb = 0; |
96 | self = 0; |
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97 | cb = 0; |
94 | attach = 0; |
98 | attach = 0; |
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99 | } |
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100 | |
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101 | attachable_base () |
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102 | { |
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103 | attachable_clear (); |
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104 | } |
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105 | |
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106 | ~attachable_base () |
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107 | { |
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108 | clear (); |
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109 | } |
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110 | |
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111 | attachable_base (const attachable_base &src) |
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112 | : self (0), cb (0), attach (src.attach) |
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113 | { |
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114 | } |
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115 | |
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116 | attachable_base &operator = (const attachable_base &src) |
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117 | { |
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118 | clear (); |
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119 | attach = src.attach; |
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120 | return *this; |
95 | } |
121 | } |
96 | }; |
122 | }; |
97 | |
123 | |
98 | // objects attachable from perl (or any other extension) should include or |
124 | // objects attachable from perl (or any other extension) should include or |
99 | // derive using the curiously recurring template pattern, to avoid |
125 | // derive using the curiously recurring template pattern, to avoid |
100 | // virtual method calls etc. |
126 | // virtual method calls etc. |
101 | template<class subclass> |
127 | template<class subclass> |
102 | struct attachable : attachable_base |
128 | struct attachable : attachable_base |
103 | { |
129 | { |
104 | static data_type get_dt () |
130 | void instantiate () |
105 | { |
131 | { |
106 | subclass::get_dt (); |
132 | if (attach) |
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133 | attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this)); |
107 | } |
134 | } |
108 | }; |
135 | }; |
109 | |
136 | |
110 | struct object_freezethaw |
137 | struct object_freezer : dynbuf |
111 | { |
138 | { |
112 | void *av; |
139 | AV *av; |
113 | FILE *fp; |
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114 | |
140 | |
115 | operator FILE *() { return fp; } |
141 | object_freezer (); |
116 | }; |
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117 | |
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118 | struct object_freezer : object_freezethaw |
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119 | { |
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120 | void *filename; |
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121 | |
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122 | object_freezer (const char *filename); |
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123 | ~object_freezer (); |
142 | ~object_freezer (); |
124 | |
143 | |
125 | void put (attachable_base *ext); |
144 | void put (attachable_base *ext); |
126 | |
145 | |
127 | template<class subclass> |
146 | template<class subclass> |
128 | void put (attachable<subclass> *obj) |
147 | void put (attachable<subclass> *obj) |
129 | { |
148 | { |
130 | put ((attachable_base *)obj); |
149 | put ((attachable_base *)obj); |
131 | } |
150 | } |
132 | }; |
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133 | |
151 | |
134 | struct object_thawer : object_freezethaw |
152 | //TODO//temporary |
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153 | void put (const char *k, const char *v) |
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154 | { |
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155 | add (k); |
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156 | |
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157 | if (v) |
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158 | add (' '), add (v); |
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159 | |
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160 | add ('\n'); |
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161 | } |
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162 | |
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163 | //TODO//temporary |
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164 | void put (const char *k, int v) |
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165 | { |
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166 | add (k); |
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167 | add (' '); |
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168 | add (sint32 (v)); |
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169 | add ('\n'); |
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170 | } |
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171 | |
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172 | #if 1 |
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173 | void put (keyword k, const char *v) |
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174 | { |
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175 | int klen = keyword_len [k]; |
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176 | int vlen = v ? strlen (v) + 1 : 0; |
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177 | |
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178 | char *p = (char *)alloc (klen + vlen + 1); |
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179 | |
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180 | memcpy (p, keyword_str [k], klen); p += klen; |
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181 | |
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182 | if (v) |
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183 | { |
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184 | *p++ = ' '; vlen--; //TODO//cf compatibility always add space |
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185 | memcpy (p, v, vlen); p += vlen; |
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186 | } |
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187 | |
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188 | *p = '\n'; |
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189 | } |
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190 | #endif |
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191 | |
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192 | #if 0 |
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193 | void put (keyword k, const shstr &v) |
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194 | { |
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195 | int klen = keyword_len [k]; |
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196 | int vlen = v ? v.length () + 1 : 0; |
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197 | |
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198 | char *p = (char *)alloc (klen + vlen + 1); |
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199 | |
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200 | memcpy (p, keyword_str [k], klen); p += klen; |
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201 | |
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202 | if (v) |
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203 | { |
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204 | *p++ = ' '; vlen--; //TODO//cf compatibility always add space |
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205 | memcpy (p, v, vlen); p += vlen; |
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206 | } |
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207 | |
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208 | *p = '\n'; |
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209 | } |
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210 | #endif |
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211 | |
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212 | void put (keyword k, double v) |
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213 | { |
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214 | char buf [128]; |
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215 | |
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216 | snprintf (buf, 128, "%.7g", v); |
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217 | |
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218 | put (k, (const char *)buf); |
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219 | } |
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220 | |
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221 | void put_(keyword k, sint64 v) |
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222 | { |
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223 | add (keyword_str [k], keyword_len [k]); |
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224 | add (' '); |
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225 | add (v); |
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226 | add ('\n'); |
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227 | } |
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228 | |
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229 | void put_(keyword k, sint32 v) |
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230 | { |
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231 | add (keyword_str [k], keyword_len [k]); |
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232 | add (' '); |
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233 | add (v); |
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234 | add ('\n'); |
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235 | } |
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236 | |
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237 | void put (keyword kbeg, keyword kend, const shstr &v) |
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238 | { |
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239 | add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n'); |
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240 | |
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241 | if (v) |
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242 | { |
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243 | add (v); |
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244 | add ('\n'); |
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245 | } |
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246 | |
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247 | add (keyword_str [kend], keyword_len [kend]); add ('\n'); |
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248 | } |
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249 | |
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250 | void put (keyword k, float v) { put (k, (double)v); } |
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251 | void put (keyword k, signed char v) { put_(k, (sint32)v); } |
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252 | void put (keyword k, unsigned char v) { put_(k, (sint32)v); } |
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253 | void put (keyword k, signed short v) { put_(k, (sint32)v); } |
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254 | void put (keyword k, unsigned short v) { put_(k, (sint32)v); } |
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255 | void put (keyword k, signed int v) { put_(k, (sint32)v); } |
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256 | void put (keyword k, unsigned int v) { put_(k, (sint64)v); } |
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257 | void put (keyword k, signed long v) { put_(k, (sint64)v); } |
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258 | void put (keyword k, unsigned long v) { put_(k, (sint64)v); } |
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259 | void put (keyword k, signed long long v) { put_(k, (sint64)v); } |
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260 | void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } |
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261 | |
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262 | template<typename T> |
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263 | void put (keyword k, T *v) |
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264 | { |
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265 | if (v) |
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266 | put (k, v->name); |
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267 | else |
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268 | put (k, (const char *)0); |
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269 | } |
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270 | |
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271 | bool save (const char *filename); |
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272 | |
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273 | operator bool () { return !!av; } |
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274 | }; |
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275 | |
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276 | // compatibility support, should be removed when no longer needed |
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277 | int fprintf (object_freezer &freezer, const char *format, ...); |
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278 | int fputs (const char *s, object_freezer &freezer); |
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279 | |
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280 | struct object_thawer |
135 | { |
281 | { |
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282 | SV *text; // text part |
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283 | AV *av; // perl part |
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284 | char *line; // current beginning of line |
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285 | char *last_value; |
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286 | |
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287 | operator bool () { return !!text; } |
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288 | |
136 | object_thawer (FILE *fp, const char *filename = 0); |
289 | object_thawer (const char *filename = 0); |
137 | ~object_thawer (); |
290 | ~object_thawer (); |
138 | |
291 | |
139 | void get (data_type type, void *obj, attachable_base *ext, int oid); |
292 | void get (data_type type, void *obj, attachable_base *ext, int oid); |
140 | |
293 | |
141 | template<class subclass> |
294 | template<class subclass> |
142 | void get (attachable<subclass> *obj, int oid) |
295 | void get (attachable<subclass> *obj, int oid) |
143 | { |
296 | { |
144 | if (av) |
297 | if (av) |
145 | get (subclass::get_dt (), (subclass *)obj, obj, oid); |
298 | get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid); |
146 | } |
299 | } |
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300 | |
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301 | keyword get_kv (); // also parse value for later use |
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302 | |
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303 | const char *get_str () { return last_value; } // may be 0 |
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304 | |
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305 | void get (shstr &sh) const; |
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306 | void get_ornull (shstr &sh) const { sh = last_value; } |
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307 | void get_ml (keyword kend, shstr &sh); |
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308 | |
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309 | sint32 get_sint32 () const; |
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310 | sint64 get_sint64 () const; |
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311 | double get_double () const; |
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312 | |
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313 | void get (float &v) { v = get_double (); } |
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314 | void get (double &v) { v = get_double (); } |
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315 | |
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316 | void get (sint8 &i) { i = get_sint32 (); } |
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317 | void get (uint8 &i) { i = get_sint32 (); } |
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318 | void get (sint16 &i) { i = get_sint32 (); } |
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319 | void get (uint16 &i) { i = get_sint32 (); } |
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320 | void get (sint32 &i) { i = get_sint32 (); } |
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321 | |
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322 | void get (uint32 &i) { i = get_sint64 (); } |
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323 | void get (sint64 &i) { i = get_sint64 (); } |
147 | }; |
324 | }; |
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325 | |
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326 | char *fgets (char *s, int n, object_thawer &thawer); |
148 | |
327 | |
149 | #endif |
328 | #endif |
150 | |
329 | |