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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.11 by root, Mon Aug 28 07:07:41 2006 UTC vs.
Revision 1.35 by root, Thu Dec 14 05:09:32 2006 UTC

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

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