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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.4 by root, Fri Aug 25 15:21:56 2006 UTC vs.
Revision 1.34 by root, Mon Dec 11 23:35:37 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
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.
9enum data_type {
10 DT_END, // no further arguments
11 DT_INT,
12 DT_LONG,
13 DT_DOUBLE,
14 DT_STRING, // 0-terminated string
15 DT_DATA, // string + length
16 DT_OBJECT,
17 DT_MAP,
18 DT_PLAYER,
19 DT_ARCH,
20 DT_PARTY,
21 DT_REGION,
22};
23 8
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
30
31void cfperl_init ();
32void cfperl_main ();
33
24enum event_klass { 34enum event_klass
35{
36 KLASS_NONE,
25 KLASS_GLOBAL, 37 KLASS_GLOBAL,
26 KLASS_PLAYER, 38 KLASS_PLAYER,
27 KLASS_OBJECT, 39 KLASS_OBJECT,
28 KLASS_MAP, 40 KLASS_MAP,
41 KLASS_COMMAND,
29}; 42};
30 43
31enum event_type { 44enum event_type
45{
32# define def(klass,name) EV_ ## klass ## name, 46# define def(klass,name) EVENT_ ## klass ## _ ## name,
33# include "eventinc.h" 47# include "eventinc.h"
34# undef def 48# undef def
35 NUM_EVENT_TYPES 49 NUM_EVENT_TYPES
36}; 50};
37 51
52#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
38#define ARG_INT(v) DT_INT , static_cast<int> (v) 53#define ARG_INT(v) DT_INT , static_cast<int> (v)
39#define ARG_LONG(v) DT_LONG , static_cast<long> (v) 54#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
40#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 55#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
41#define ARG_STRING(v) DT_STRING, static_cast<char *> (v) 56#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
42#define ARG_DATA(s,l) DT_DATA , static_cast<void *> (s), (l) 57#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) 58#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o)
44#define ARG_MAP(o) DT_MAP , static_cast<struct mapstruct *> (o) 59#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o)
45#define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *> (o) 60#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o)
46#define ARG_ARCH(o) DT_ARCH , static_cast<struct archetype *> (o) 61#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o)
47#define ARG_PARTY(o) DT_PARTY , static_cast<struct party *> (o) 62#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o)
48#define ARG_REGION(o) DT_REGION, static_cast<struct region *> (o) 63#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o)
49 64
50// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 65// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
51 66
52// all these return true when the normal event processing should be skipped (if any) 67// 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) 68#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
54 69
70#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
55#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 71#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
56#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 72#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
57#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) 73#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__) 74#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
75
76//TODO should index into @result
77#define RESULT(idx,type) cfperl_result_ ## type (idx)
78#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
79#define RESULT_INT(idx) RESULT(idx, INT)
59 80
60bool cfperl_invoke (event_type event, ...); 81bool cfperl_invoke (event_type event, ...);
61void cfperl_free_ob (object *op); 82double cfperl_result_DOUBLE (int idx);
83int cfperl_result_INT (int idx);
62 84
63void cfperl_init (); 85struct attachable_base
64void cfperl_main (); 86{
87 SV *self;
88 AV *cb; // CF+ perl self and callback
89 shstr attach; // generic extension attachment information
90
91 void clear (); // called when free'ing objects
92 void optimise (); // possibly save some memory by destroying unneeded data
93 void instantiate (data_type type, void *obj);
94
95 void attachable_clear ()
96 {
97 self = 0;
98 cb = 0;
99 attach = 0;
100 }
101
102 attachable_base ()
103 {
104 attachable_clear ();
105 }
106
107 ~attachable_base ()
108 {
109 clear ();
110 }
111
112 attachable_base (const attachable_base &src)
113 : self (0), cb (0), attach (src.attach)
114 {
115 }
116
117 attachable_base &operator = (const attachable_base &src)
118 {
119 clear ();
120 attach = src.attach;
121 return *this;
122 }
123};
124
125// objects attachable from perl (or any other extension) should include or
126// derive using the curiously recurring template pattern, to avoid
127// virtual method calls etc.
128template<class subclass>
129struct attachable : attachable_base
130{
131 void instantiate ()
132 {
133 if (attach)
134 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
135 }
136};
137
138struct object_freezer : dynbuf
139{
140 AV *av;
141
142 object_freezer ();
143 ~object_freezer ();
144
145 void put (attachable_base *ext);
146
147 template<class subclass>
148 void put (attachable<subclass> *obj)
149 {
150 put ((attachable_base *)obj);
151 }
152
153 // used only for user-defined key-value pairs
154 void put (const shstr &k, const shstr &v)
155 {
156 add (k);
157
158 if (v)
159 add (' '), add (v);
160
161 add ('\n');
162 }
163
164 //TODO//temporary, used only for saving body locations
165 void put (const char *k, int v)
166 {
167 add (k);
168 add (' ');
169 add (sint32 (v));
170 add ('\n');
171 }
172
173 template<typename T>
174 void put_string (keyword k, const T &v)
175 {
176 int klen = keyword_len [k];
177 int vlen = v ? strlen (v) + 1 : 0;
178
179 char *p = (char *)alloc (klen + vlen + 1);
180
181 memcpy (p, keyword_str [k], klen); p += klen;
182
183 if (v)
184 {
185 *p++ = ' '; vlen--;
186 memcpy (p, v, vlen); p += vlen;
187 }
188
189 *p = '\n';
190 }
191
192 void put (keyword k, const char *v)
193 {
194 put_string (k, v);
195 }
196
197 void put (keyword k, const shstr &v)
198 {
199 put_string (k, v);
200 }
201
202 void put (keyword k, double v)
203 {
204 char buf [128];
205
206 snprintf (buf, 128, "%.7g", v);
207
208 put (k, (const char *)buf);
209 }
210
211 void put_(keyword k, sint64 v)
212 {
213 add (keyword_str [k], keyword_len [k]);
214 add (' ');
215 add (v);
216 add ('\n');
217 }
218
219 void put_(keyword k, sint32 v)
220 {
221 add (keyword_str [k], keyword_len [k]);
222 add (' ');
223 add (v);
224 add ('\n');
225 }
226
227 void put (keyword kbeg, keyword kend, const shstr &v)
228 {
229 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
230
231 if (v)
232 {
233 add (v);
234 add ('\n');
235 }
236
237 add (keyword_str [kend], keyword_len [kend]); add ('\n');
238 }
239
240 void put (keyword k, float v) { put (k, (double)v); }
241 void put (keyword k, signed char v) { put_(k, (sint32)v); }
242 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
243 void put (keyword k, signed short v) { put_(k, (sint32)v); }
244 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
245 void put (keyword k, signed int v) { put_(k, (sint32)v); }
246 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
247 void put (keyword k, signed long v) { put_(k, (sint64)v); }
248 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
249 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
250 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
251
252 template<typename T>
253 void put (keyword k, const T *v)
254 {
255 if (v)
256 put (k, v->name);
257 else
258 put (k, (const char *)0);
259 }
260
261 template<typename T>
262 void put (keyword k, const refptr<T> &v)
263 {
264 put (k, (T *)v);
265 }
266
267 bool save (const char *filename);
268 char *as_string (); // like strdup
269
270 operator bool () { return !!av; }
271};
272
273// compatibility support, should be removed when no longer needed
274int fprintf (object_freezer &freezer, const char *format, ...);
275int fputs (const char *s, object_freezer &freezer);
276
277struct object_thawer
278{
279 SV *text; // text part
280 AV *av; // perl part
281 char *line; // current beginning of line
282 char *last_value;
283
284 operator bool () { return !!text; }
285
286 object_thawer (const char *filename = 0);
287 object_thawer (const char *data, AV *perlav);
288 ~object_thawer ();
289
290 void get (data_type type, void *obj, attachable_base *ext, int oid);
291
292 template<class subclass>
293 void get (attachable<subclass> *obj, int oid)
294 {
295 if (av)
296 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
297 }
298
299 keyword get_kv (); // also parse value for later use
300
301 const char *get_str () { return last_value; } // may be 0
302
303 void get (shstr &sh) const;
304 void get_ornull (shstr &sh) const { sh = last_value; }
305 void get_ml (keyword kend, shstr &sh);
306
307 sint32 get_sint32 () const;
308 sint64 get_sint64 () const;
309 double get_double () const;
310
311 void get (float &v) { v = get_double (); }
312 void get (double &v) { v = get_double (); }
313
314 void get (sint8 &i) { i = get_sint32 (); }
315 void get (uint8 &i) { i = get_sint32 (); }
316 void get (sint16 &i) { i = get_sint32 (); }
317 void get (uint16 &i) { i = get_sint32 (); }
318 void get (sint32 &i) { i = get_sint32 (); }
319
320 void get (uint32 &i) { i = get_sint64 (); }
321 void get (sint64 &i) { i = get_sint64 (); }
322};
323
324char *fgets (char *s, int n, object_thawer &thawer);
65 325
66#endif 326#endif
67 327

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