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/cvs/deliantra/server/include/cfperl.h
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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.14 by root, Wed Aug 30 06:06:27 2006 UTC vs.
Revision 1.24 by root, Sat Sep 9 21:48:28 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
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 33
35enum event_klass 34enum event_klass
36{ 35{
37 KLASS_NONE, 36 KLASS_NONE,
38 KLASS_GLOBAL, 37 KLASS_GLOBAL,
… …
80bool cfperl_invoke (event_type event, ...); 79bool cfperl_invoke (event_type event, ...);
81int cfperl_result_INT (int idx); 80int cfperl_result_INT (int idx);
82 81
83struct attachable_base 82struct attachable_base
84{ 83{
85 void *self, *cb; // CF+ perl self and callback 84 SV *self;
85 AV *cb; // CF+ perl self and callback
86 const char *attach; // generic extension attachment information 86 shstr attach; // generic extension attachment information
87 87
88 void clear (); // called when free'ing objects 88 void clear (); // called when free'ing objects
89 void optimise (); // possibly save some memory by destroying unneeded data 89 void optimise (); // possibly save some memory by destroying unneeded data
90 void instantiate (data_type type, void *obj); 90 void instantiate (data_type type, void *obj);
91 91
92 void attachable_init () 92 void attachable_clear ()
93 { 93 {
94 self = cb = 0; 94 self = 0;
95 cb = 0;
95 attach = 0; 96 attach = 0;
97 }
98
99 attachable_base ()
100 {
101 attachable_clear ();
102 }
103
104 ~attachable_base ()
105 {
106 clear ();
107 }
108
109 attachable_base (const attachable_base &src)
110 : self (0), cb (0), attach (src.attach)
111 {
96 } 112 }
97}; 113};
98 114
99// objects attachable from perl (or any other extension) should include or 115// objects attachable from perl (or any other extension) should include or
100// derive using the curiously recurring template pattern, to avoid 116// derive using the curiously recurring template pattern, to avoid
101// virtual method calls etc. 117// virtual method calls etc.
102template<class subclass> 118template<class subclass>
103struct attachable : attachable_base 119struct attachable : attachable_base
104{ 120{
105 static data_type get_dt ()
106 {
107 return subclass::get_dt ();
108 }
109
110 void instantiate () 121 void instantiate ()
111 { 122 {
112 if (attach) 123 if (attach)
113 attachable_base::instantiate (get_dt (), static_cast<subclass *>(this)); 124 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
114 } 125 }
115}; 126};
116 127
117struct object_freezethaw 128struct object_freezer : dynbuf
118{ 129{
119 void *av; 130 AV *av;
120 FILE *fp;
121 131
122 operator FILE *() { return fp; } 132 object_freezer ();
123};
124
125struct object_freezer : object_freezethaw
126{
127 void *filename;
128
129 object_freezer (const char *filename);
130 ~object_freezer (); 133 ~object_freezer ();
131 134
132 void put (attachable_base *ext); 135 void put (attachable_base *ext);
133 136
134 template<class subclass> 137 template<class subclass>
135 void put (attachable<subclass> *obj) 138 void put (attachable<subclass> *obj)
136 { 139 {
137 put ((attachable_base *)obj); 140 put ((attachable_base *)obj);
138 } 141 }
139};
140 142
141struct object_thawer : object_freezethaw 143 //TODO//temporary
144 void put (const char *k, const char *v)
145 {
146 add (k);
147
148 if (v)
149 add (' '), add (v);
150
151 add ('\n');
152 }
153
154 //TODO//temporary
155 void put (const char *k, int v)
156 {
157 add (k);
158 add (' ');
159 add (sint32 (v));
160 add ('\n');
161 }
162
163#if 1
164 void put (keyword k, const char *v)
165 {
166 int klen = keyword_len [k];
167 int vlen = v ? strlen (v) + 1 : 0;
168
169 char *p = (char *)alloc (klen + vlen + 1);
170
171 memcpy (p, keyword_str [k], klen); p += klen;
172
173 if (v)
174 {
175 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
176 memcpy (p, v, vlen); p += vlen;
177 }
178
179 *p = '\n';
180 }
181#endif
182
183#if 0
184 void put (keyword k, const shstr &v)
185 {
186 int klen = keyword_len [k];
187 int vlen = v ? v.length () + 1 : 0;
188
189 char *p = (char *)alloc (klen + vlen + 1);
190
191 memcpy (p, keyword_str [k], klen); p += klen;
192
193 if (v)
194 {
195 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
196 memcpy (p, v, vlen); p += vlen;
197 }
198
199 *p = '\n';
200 }
201#endif
202
203 void put (keyword k, double v)
204 {
205 char buf [128];
206
207 snprintf (buf, 128, "%.7g", v);
208
209 put (k, (const char *)buf);
210 }
211
212 void put_(keyword k, sint64 v)
213 {
214 add (keyword_str [k], keyword_len [k]);
215 add (' ');
216 add (v);
217 add ('\n');
218 }
219
220 void put_(keyword k, sint32 v)
221 {
222 add (keyword_str [k], keyword_len [k]);
223 add (' ');
224 add (v);
225 add ('\n');
226 }
227
228 void put (keyword kbeg, keyword kend, const shstr &v)
229 {
230 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
231
232 if (v)
233 {
234 add (v);
235 add ('\n');
236 }
237
238 add (keyword_str [kend], keyword_len [kend]); add ('\n');
239 }
240
241 void put (keyword k, float v) { put (k, (double)v); }
242 void put (keyword k, signed char v) { put_(k, (sint32)v); }
243 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
244 void put (keyword k, signed short v) { put_(k, (sint32)v); }
245 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
246 void put (keyword k, signed int v) { put_(k, (sint32)v); }
247 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
248 void put (keyword k, signed long v) { put_(k, (sint64)v); }
249 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
250 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
251 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
252
253 template<typename T>
254 void put (keyword k, T *v)
255 {
256 if (v)
257 put (k, v->name);
258 else
259 put (k, (const char *)0);
260 }
261
262 bool save (const char *filename);
263
264 operator bool () { return !!av; }
265};
266
267// compatibility support, should be removed when no longer needed
268int fprintf (object_freezer &freezer, const char *format, ...);
269int fputs (const char *s, object_freezer &freezer);
270
271struct object_thawer
142{ 272{
273 SV *text; // text part
274 AV *av; // perl part
275 char *line; // current beginning of line
276 char *last_value;
277
278 operator bool () { return !!text; }
279
143 object_thawer (const char *filename = 0); 280 object_thawer (const char *filename = 0);
144 ~object_thawer (); 281 ~object_thawer ();
145 282
146 void get (data_type type, void *obj, attachable_base *ext, int oid); 283 void get (data_type type, void *obj, attachable_base *ext, int oid);
147 284
148 template<class subclass> 285 template<class subclass>
149 void get (attachable<subclass> *obj, int oid) 286 void get (attachable<subclass> *obj, int oid)
150 { 287 {
151 if (av) 288 if (av)
152 get (subclass::get_dt (), (subclass *)obj, obj, oid); 289 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
153 } 290 }
291
292 keyword get_kv (); // also parse value for later use
293
294 const char *get_str () { return last_value; } // may be 0
295
296 void get (shstr &sh) const;
297 void get_ornull (shstr &sh) const { sh = last_value; }
298 void get_ml (keyword kend, shstr &sh);
299
300 sint32 get_sint32 () const;
301 sint64 get_sint64 () const;
302 double get_double () const;
303
304 void get (float &v) { v = get_double (); }
305 void get (double &v) { v = get_double (); }
306
307 void get (sint8 &i) { i = get_sint32 (); }
308 void get (uint8 &i) { i = get_sint32 (); }
309 void get (sint16 &i) { i = get_sint32 (); }
310 void get (uint16 &i) { i = get_sint32 (); }
311 void get (sint32 &i) { i = get_sint32 (); }
312
313 void get (uint32 &i) { i = get_sint64 (); }
314 void get (sint64 &i) { i = get_sint64 (); }
154}; 315};
316
317char *fgets (char *s, int n, object_thawer &thawer);
155 318
156#endif 319#endif
157 320

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