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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.3 by root, Fri Aug 25 13:24:50 2006 UTC vs.
Revision 1.23 by root, Mon Sep 4 13:55:54 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,
29}; 41};
30 42
31enum event_type { 43enum event_type
44{
32# define def(klass,name) EV_ ## klass ## name, 45# define def(klass,name) EVENT_ ## klass ## _ ## name,
33# include "eventinc.h" 46# include "eventinc.h"
34# undef def 47# undef def
48 NUM_EVENT_TYPES
35}; 49};
36 50
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
37#define ARG_INT(v) DT_INT , static_cast<int> (v) 52#define ARG_INT(v) DT_INT , static_cast<int> (v)
38#define ARG_LONG(v) DT_LONG , static_cast<long> (v) 53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
39#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
40#define ARG_STRING(v) DT_STRING, static_cast<char *> (v) 55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
41#define ARG_DATA(s,l) DT_DATA , static_cast<void *> (s), (l) 56#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l)
42#define ARG_OBJECT(o) DT_OBJECT, static_cast<struct object *> (o) 57#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o)
43#define ARG_MAP(o) DT_MAP , static_cast<struct mapstruct *> (o) 58#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o)
44#define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *> (o) 59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o)
45#define ARG_ARCH(o) DT_ARCH , static_cast<struct archetype *> (o) 60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o)
46#define ARG_PARTY(o) DT_PARTY , static_cast<struct party *> (o) 61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o)
47#define ARG_REGION(o) DT_REGION, static_cast<struct region *> (o) 62#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
48 63
49// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
50 65
66// all these return true when the normal event processing should be skipped (if any)
51#define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## event, ## __VA_ARGS__, DT_END) 67#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
52 68
69#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
53#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 70#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
54#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 71#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
55#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) 72#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
56#define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) 73#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
57 74
75//TODO should index into @result
76#define RESULT(idx,type) cfperl_result_ ## type (idx)
77#define RESULT_INT(idx) RESULT(idx, INT)
78
58int cfperl_invoke (event_type event, ...); 79bool cfperl_invoke (event_type event, ...);
59void cfperl_free_ob (object *op); 80int cfperl_result_INT (int idx);
60 81
61void cfperl_init (); 82struct attachable_base
62void cfperl_main (); 83{
84 SV *self;
85 AV *cb; // CF+ perl self and callback
86 shstr attach; // generic extension attachment information
63 87
88 void clear (); // called when free'ing objects
89 void optimise (); // possibly save some memory by destroying unneeded data
90 void instantiate (data_type type, void *obj);
91
92 void attachable_clear ()
93 {
94 self = 0;
95 cb = 0;
96 attach = 0;
97 }
98
99 attachable_base ()
100 {
101 attachable_clear ();
102 }
103
104 attachable_base (const attachable_base &src)
105 : self (0), cb (0), attach (src.attach)
106 {
107 }
108};
109
110// objects attachable from perl (or any other extension) should include or
111// derive using the curiously recurring template pattern, to avoid
112// virtual method calls etc.
113template<class subclass>
114struct attachable : attachable_base
115{
116 void instantiate ()
117 {
118 if (attach)
119 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
120 }
121};
122
123struct object_freezer : dynbuf
124{
125 AV *av;
126
127 object_freezer ();
128 ~object_freezer ();
129
130 void put (attachable_base *ext);
131
132 template<class subclass>
133 void put (attachable<subclass> *obj)
134 {
135 put ((attachable_base *)obj);
136 }
137
138 //TODO//temporary
139 void put (const char *k, const char *v)
140 {
141 add (k);
142
143 if (v)
144 add (' '), add (v);
145
146 add ('\n');
147 }
148
149 //TODO//temporary
150 void put (const char *k, int v)
151 {
152 add (k);
153 add (' ');
154 add (sint32 (v));
155 add ('\n');
156 }
157
158#if 1
159 void put (keyword k, const char *v)
160 {
161 int klen = keyword_len [k];
162 int vlen = v ? strlen (v) + 1 : 0;
163
164 char *p = (char *)alloc (klen + vlen + 1);
165
166 memcpy (p, keyword_str [k], klen); p += klen;
167
168 if (v)
169 {
170 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
171 memcpy (p, v, vlen); p += vlen;
172 }
173
174 *p = '\n';
175 }
64#endif 176#endif
65 177
178#if 0
179 void put (keyword k, const shstr &v)
180 {
181 int klen = keyword_len [k];
182 int vlen = v ? v.length () + 1 : 0;
183
184 char *p = (char *)alloc (klen + vlen + 1);
185
186 memcpy (p, keyword_str [k], klen); p += klen;
187
188 if (v)
189 {
190 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
191 memcpy (p, v, vlen); p += vlen;
192 }
193
194 *p = '\n';
195 }
196#endif
197
198 void put (keyword k, double v)
199 {
200 char buf [128];
201
202 snprintf (buf, 128, "%.7g", v);
203
204 put (k, (const char *)buf);
205 }
206
207 void put_(keyword k, sint64 v)
208 {
209 add (keyword_str [k], keyword_len [k]);
210 add (' ');
211 add (v);
212 add ('\n');
213 }
214
215 void put_(keyword k, sint32 v)
216 {
217 add (keyword_str [k], keyword_len [k]);
218 add (' ');
219 add (v);
220 add ('\n');
221 }
222
223 void put (keyword kbeg, keyword kend, const shstr &v)
224 {
225 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
226
227 if (v)
228 {
229 add (v);
230 add ('\n');
231 }
232
233 add (keyword_str [kend], keyword_len [kend]); add ('\n');
234 }
235
236 void put (keyword k, float v) { put (k, (double)v); }
237 void put (keyword k, signed char v) { put_(k, (sint32)v); }
238 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
239 void put (keyword k, signed short v) { put_(k, (sint32)v); }
240 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
241 void put (keyword k, signed int v) { put_(k, (sint32)v); }
242 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
243 void put (keyword k, signed long v) { put_(k, (sint64)v); }
244 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
245 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
246 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
247
248 template<typename T>
249 void put (keyword k, T *v)
250 {
251 if (v)
252 put (k, v->name);
253 else
254 put (k, (const char *)0);
255 }
256
257 bool save (const char *filename);
258
259 operator bool () { return !!av; }
260};
261
262// compatibility support, should be removed when no longer needed
263int fprintf (object_freezer &freezer, const char *format, ...);
264int fputs (const char *s, object_freezer &freezer);
265
266struct object_thawer
267{
268 SV *text; // text part
269 AV *av; // perl part
270 char *line; // current beginning of line
271 char *last_value;
272
273 operator bool () { return !!text; }
274
275 object_thawer (const char *filename = 0);
276 ~object_thawer ();
277
278 void get (data_type type, void *obj, attachable_base *ext, int oid);
279
280 template<class subclass>
281 void get (attachable<subclass> *obj, int oid)
282 {
283 if (av)
284 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
285 }
286
287 keyword get_kv (); // also parse value for later use
288
289 const char *get_str () { return last_value; } // may be 0
290
291 void get (shstr &sh) const;
292 void get_ornull (shstr &sh) const { sh = last_value; }
293 void get_ml (keyword kend, shstr &sh);
294
295 sint32 get_sint32 () const;
296 sint64 get_sint64 () const;
297 double get_double () const;
298
299 void get (float &v) { v = get_double (); }
300 void get (double &v) { v = get_double (); }
301
302 void get (sint8 &i) { i = get_sint32 (); }
303 void get (uint8 &i) { i = get_sint32 (); }
304 void get (sint16 &i) { i = get_sint32 (); }
305 void get (uint16 &i) { i = get_sint32 (); }
306 void get (sint32 &i) { i = get_sint32 (); }
307
308 void get (uint32 &i) { i = get_sint64 (); }
309 void get (sint64 &i) { i = get_sint64 (); }
310};
311
312char *fgets (char *s, int n, object_thawer &thawer);
313
314#endif
315

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