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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.6 by root, Sat Aug 26 08:44:06 2006 UTC vs.
Revision 1.25 by root, Sun Sep 10 14:54:02 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;
9struct mapstruct;
10 8
11// could have used templates, but a more traditional C api 9using namespace std;
12// uses more explicit typing which is ok for this purpose.
13enum data_type
14{
15 DT_END, // no further arguments
16 DT_INT,
17 DT_INT64,
18 DT_DOUBLE,
19 DT_STRING, // 0-terminated string
20 DT_DATA, // string + length
21 DT_OBJECT,
22 DT_MAP,
23 DT_PLAYER,
24 DT_ARCH,
25 DT_PARTY,
26 DT_REGION,
27 10
28 // following are only for cfapi-compatibility 11#include <EXTERN.h>
29 DT_INT_PTR, 12#include <perl.h>
30 DT_INT64_PTR, 13#include <XSUB.h>
31 DT_DOUBLE_PTR, 14
32}; 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 33
34enum event_klass 34enum event_klass
35{ 35{
36 KLASS_NONE,
36 KLASS_GLOBAL, 37 KLASS_GLOBAL,
37 KLASS_PLAYER, 38 KLASS_PLAYER,
38 KLASS_OBJECT, 39 KLASS_OBJECT,
39 KLASS_MAP, 40 KLASS_MAP,
40}; 41};
41 42
42enum event_type 43enum event_type
43{ 44{
44# define def(klass,name) EV_ ## klass ## _ ## name, 45# define def(klass,name) EVENT_ ## klass ## _ ## name,
45# include "eventinc.h" 46# include "eventinc.h"
46# undef def 47# undef def
47 NUM_EVENT_TYPES 48 NUM_EVENT_TYPES
48}; 49};
49 50
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
50#define ARG_INT(v) DT_INT , static_cast<int> (v) 52#define ARG_INT(v) DT_INT , static_cast<int> (v)
51#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
52#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
53#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
54#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), (l)
… …
60#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 62#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
61 63
62// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
63 65
64// 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)
65#define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## _ ## event, ## __VA_ARGS__, DT_END) 67#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
66 68
69#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
67#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 70#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
68#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__)
69#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__)
70#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__)
71 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
79bool cfperl_invoke (event_type event, ...);
80int cfperl_result_INT (int idx);
81
72struct extendable_base 82struct attachable_base
73{ 83{
74 void *self, *cb; // CF+ perl self and callback 84 SV *self;
85 AV *cb; // CF+ perl self and callback
75 const char *attach; // generic extension attachment information 86 shstr attach; // generic extension attachment information
76 87
77 void clear (); // called when free'ing objects 88 void clear (); // called when free'ing objects
78 void optimise (); // possibly save some memory by destroying unneeded data 89 void optimise (); // possibly save some memory by destroying unneeded data
79 void reattach (data_type type, void *self); // called after swapin 90 void instantiate (data_type type, void *obj);
80 void instantiate (data_type type, void *self); // called on first instantiation
81 void clone (data_type type, void *self, void *dest);
82};
83 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 ()
105 {
106 clear ();
107 }
108
109 attachable_base (const attachable_base &src)
110 : self (0), cb (0), attach (src.attach)
111 {
112 }
113
114 attachable_base &operator = (const attachable_base &src)
115 {
116 clear ();
117 attach = src.attach;
118 return *this;
119 }
120};
121
84// objects extendable from perl (or any other extension) should include or 122// objects attachable from perl (or any other extension) should include or
85// derive using the curiously recurring template pattern, to avoid 123// derive using the curiously recurring template pattern, to avoid
86// virtual method calls etc. 124// virtual method calls etc.
87template<class subclass> 125template<class subclass>
88struct extendable : extendable_base 126struct attachable : attachable_base
89{ 127{
90 void clear ()
91 {
92 if (self || cb)
93 extendable_base::clear ();
94 }
95 void instantiate () 128 void instantiate ()
96 { 129 {
97 if (attach) 130 if (attach)
98 extendable_base::instantiate ( 131 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
99 static_cast<subclass *>(this)->get_dt (), 132 }
100 static_cast<subclass *>(this) 133};
134
135struct object_freezer : dynbuf
136{
137 AV *av;
138
139 object_freezer ();
140 ~object_freezer ();
141
142 void put (attachable_base *ext);
143
144 template<class subclass>
145 void put (attachable<subclass> *obj)
146 {
147 put ((attachable_base *)obj);
148 }
149
150 //TODO//temporary
151 void put (const char *k, const char *v)
152 {
153 add (k);
154
155 if (v)
156 add (' '), add (v);
157
158 add ('\n');
159 }
160
161 //TODO//temporary
162 void put (const char *k, int v)
163 {
164 add (k);
165 add (' ');
166 add (sint32 (v));
167 add ('\n');
168 }
169
170#if 1
171 void put (keyword k, const char *v)
172 {
173 int klen = keyword_len [k];
174 int vlen = v ? strlen (v) + 1 : 0;
175
176 char *p = (char *)alloc (klen + vlen + 1);
177
178 memcpy (p, keyword_str [k], klen); p += klen;
179
180 if (v)
101 ); 181 {
102 } 182 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
103 void reattach () 183 memcpy (p, v, vlen); p += vlen;
104 {
105 if (attach)
106 extendable_base::reattach (
107 static_cast<subclass *>(this)->get_dt (),
108 static_cast<subclass *>(this)
109 ); 184 }
110 }
111 void clone (subclass *destination)
112 {
113 if (self || cb)
114 extendable_base::clone (
115 static_cast<subclass *>(this)->get_dt (),
116 static_cast<subclass *>(this),
117 destination
118 );
119 }
120};
121 185
122bool cfperl_invoke (event_type event, ...); 186 *p = '\n';
123void cfperl_free_ob (struct object *op); 187 }
124
125void cfperl_init ();
126void cfperl_main ();
127
128#endif 188#endif
129 189
190#if 0
191 void put (keyword k, const shstr &v)
192 {
193 int klen = keyword_len [k];
194 int vlen = v ? v.length () + 1 : 0;
195
196 char *p = (char *)alloc (klen + vlen + 1);
197
198 memcpy (p, keyword_str [k], klen); p += klen;
199
200 if (v)
201 {
202 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
203 memcpy (p, v, vlen); p += vlen;
204 }
205
206 *p = '\n';
207 }
208#endif
209
210 void put (keyword k, double v)
211 {
212 char buf [128];
213
214 snprintf (buf, 128, "%.7g", v);
215
216 put (k, (const char *)buf);
217 }
218
219 void put_(keyword k, sint64 v)
220 {
221 add (keyword_str [k], keyword_len [k]);
222 add (' ');
223 add (v);
224 add ('\n');
225 }
226
227 void put_(keyword k, sint32 v)
228 {
229 add (keyword_str [k], keyword_len [k]);
230 add (' ');
231 add (v);
232 add ('\n');
233 }
234
235 void put (keyword kbeg, keyword kend, const shstr &v)
236 {
237 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
238
239 if (v)
240 {
241 add (v);
242 add ('\n');
243 }
244
245 add (keyword_str [kend], keyword_len [kend]); add ('\n');
246 }
247
248 void put (keyword k, float v) { put (k, (double)v); }
249 void put (keyword k, signed char v) { put_(k, (sint32)v); }
250 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
251 void put (keyword k, signed short v) { put_(k, (sint32)v); }
252 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
253 void put (keyword k, signed int v) { put_(k, (sint32)v); }
254 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
255 void put (keyword k, signed long v) { put_(k, (sint64)v); }
256 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
257 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
258 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
259
260 template<typename T>
261 void put (keyword k, T *v)
262 {
263 if (v)
264 put (k, v->name);
265 else
266 put (k, (const char *)0);
267 }
268
269 bool save (const char *filename);
270
271 operator bool () { return !!av; }
272};
273
274// compatibility support, should be removed when no longer needed
275int fprintf (object_freezer &freezer, const char *format, ...);
276int fputs (const char *s, object_freezer &freezer);
277
278struct object_thawer
279{
280 SV *text; // text part
281 AV *av; // perl part
282 char *line; // current beginning of line
283 char *last_value;
284
285 operator bool () { return !!text; }
286
287 object_thawer (const char *filename = 0);
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);
325
326#endif
327

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