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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 1.38 by root, Sat Dec 16 03:08:26 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#include <EventAPI.h>
16
17#include "callback.h"
18
19// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
20#undef localtime
21#undef srand48
22#undef drand48
23#undef srandom
24#undef readdir
25#undef getprotobyname
26#undef gethostbyname
27#undef ctime
28#undef strerror
29
30// perl bug #40256: perl does overwrite those with reentrant versions
31// but does not initialise their state structures.
32#undef random
33#undef crypt
34
35void cfperl_init ();
36void cfperl_main ();
33 37
34enum event_klass 38enum event_klass
35{ 39{
40 KLASS_NONE,
36 KLASS_GLOBAL, 41 KLASS_GLOBAL,
42 KLASS_SOCKET,
37 KLASS_PLAYER, 43 KLASS_PLAYER,
38 KLASS_OBJECT, 44 KLASS_OBJECT,
39 KLASS_MAP, 45 KLASS_MAP,
46 KLASS_COMMAND,
40}; 47};
41 48
42enum event_type 49enum event_type
43{ 50{
44# define def(klass,name) EV_ ## klass ## _ ## name, 51# define def(klass,name) EVENT_ ## klass ## _ ## name,
45# include "eventinc.h" 52# include "eventinc.h"
46# undef def 53# undef def
47 NUM_EVENT_TYPES 54 NUM_EVENT_TYPES
48}; 55};
49 56
57#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
50#define ARG_INT(v) DT_INT , static_cast<int> (v) 58#define ARG_INT(v) DT_INT , static_cast<int> (v)
51#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 59#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
52#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 60#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
53#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 61#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) 62#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
55#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 63#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o)
56#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 64#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o)
57#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 65#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o)
58#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 66#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o)
59#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 67#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o)
60#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 68#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o)
69#define ARG_SOCKET(o) DT_SOCKET, (void *)static_cast<client *> (o)
61 70
62// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 71// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
63 72
64// all these return true when the normal event processing should be skipped (if any) 73// 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) 74#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
66 75
76#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
67#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 77#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
68#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 78#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
79#define INVOKE_SOCKET(event, ns, ...) INVOKE_(EVENT_ ## SOCKET ## _ ## event, ARG_SOCKET (ns), ## __VA_ARGS__)
69#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) 80#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__) 81#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
71 82
83//TODO should index into @result
84#define RESULT(idx,type) cfperl_result_ ## type (idx)
85#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
86#define RESULT_INT(idx) RESULT(idx, INT)
87
88bool cfperl_invoke (event_type event, ...);
89double cfperl_result_DOUBLE (int idx);
90int cfperl_result_INT (int idx);
91
72struct extendable_base 92struct attachable_base
73{ 93{
74 void *self, *cb; // CF+ perl self and callback 94 SV *self; // CF+ perl self
95 AV *cb; // CF+ callbacks
75 const char *attach; // generic extension attachment information 96 shstr attach; // generic extension attachment information
76 97
77 void clear (); // called when free'ing objects 98 void clear (); // called when free'ing objects
78 void optimise (); // possibly save some memory by destroying unneeded data 99 void optimise (); // possibly save some memory by destroying unneeded data
79 void reattach (data_type type, void *self); // called after swapin 100 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};
83 101
102 void attachable_clear ()
103 {
104 self = 0;
105 cb = 0;
106 attach = 0;
107 }
108
109 attachable_base ()
110 {
111 attachable_clear ();
112 }
113
114 ~attachable_base ()
115 {
116 clear ();
117 }
118
119 attachable_base (const attachable_base &src)
120 : self (0), cb (0), attach (src.attach)
121 {
122 }
123
124 attachable_base &operator =(const attachable_base &src)
125 {
126 clear ();
127 attach = src.attach;
128 return *this;
129 }
130};
131
84// objects extendable from perl (or any other extension) should include or 132// objects attachable from perl (or any other extension) should include or
85// derive using the curiously recurring template pattern, to avoid 133// derive using the curiously recurring template pattern, to avoid
86// virtual method calls etc. 134// virtual method calls etc.
87template<class subclass> 135template<class subclass>
88struct extendable : extendable_base 136struct attachable : attachable_base
89{ 137{
90 void clear ()
91 {
92 if (self || cb)
93 extendable_base::clear ();
94 }
95 void instantiate () 138 void instantiate ()
96 { 139 {
97 if (attach) 140 if (attach)
98 extendable_base::instantiate ( 141 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
99 static_cast<subclass *>(this)->get_dt (), 142 }
100 static_cast<subclass *>(this) 143};
144
145struct object_freezer : dynbuf
146{
147 AV *av;
148
149 object_freezer ();
150 ~object_freezer ();
151
152 void put (attachable_base *ext);
153
154 template<class subclass>
155 void put (attachable<subclass> *obj)
156 {
157 put ((attachable_base *)obj);
158 }
159
160 // used only for user-defined key-value pairs
161 void put (const shstr &k, const shstr &v)
162 {
163 add (k);
164
165 if (v)
166 add (' '), add (v);
167
168 add ('\n');
169 }
170
171 //TODO//temporary, used only for saving body locations
172 void put (const char *k, int v)
173 {
174 add (k);
175 add (' ');
176 add (sint32 (v));
177 add ('\n');
178 }
179
180 template<typename T>
181 void put_string (keyword k, const T &v)
182 {
183 int klen = keyword_len [k];
184 int vlen = v ? strlen (v) + 1 : 0;
185
186 char *p = (char *)alloc (klen + vlen + 1);
187
188 memcpy (p, keyword_str [k], klen); p += klen;
189
190 if (v)
101 ); 191 {
102 } 192 *p++ = ' '; vlen--;
103 void reattach () 193 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 ); 194 }
195
196 *p = '\n';
110 } 197 }
111 void clone (subclass *destination) 198
199 void put (keyword k, const char *v)
112 { 200 {
113 if (self || cb) 201 put_string (k, v);
114 extendable_base::clone ( 202 }
115 static_cast<subclass *>(this)->get_dt (), 203
116 static_cast<subclass *>(this), 204 void put (keyword k, const shstr &v)
117 destination 205 {
206 put_string (k, v);
207 }
208
209 void put (keyword k, double v)
210 {
211 char buf [128];
212
213 snprintf (buf, 128, "%.7g", v);
214
215 put (k, (const char *)buf);
216 }
217
218 void put_(keyword k, sint64 v)
219 {
220 add (keyword_str [k], keyword_len [k]);
221 add (' ');
222 add (v);
223 add ('\n');
224 }
225
226 void put_(keyword k, sint32 v)
227 {
228 add (keyword_str [k], keyword_len [k]);
229 add (' ');
230 add (v);
231 add ('\n');
232 }
233
234 void put (keyword kbeg, keyword kend, const shstr &v)
235 {
236 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
237
238 if (v)
118 ); 239 {
119 } 240 add (v);
120}; 241 add ('\n');
242 }
121 243
122bool cfperl_invoke (event_type event, ...); 244 add (keyword_str [kend], keyword_len [kend]); add ('\n');
123void cfperl_free_ob (struct object *op); 245 }
124 246
125void cfperl_init (); 247 void put (keyword k, float v) { put (k, (double)v); }
126void cfperl_main (); 248 void put (keyword k, signed char v) { put_(k, (sint32)v); }
249 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
250 void put (keyword k, signed short v) { put_(k, (sint32)v); }
251 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
252 void put (keyword k, signed int v) { put_(k, (sint32)v); }
253 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
254 void put (keyword k, signed long v) { put_(k, (sint64)v); }
255 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
256 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
257 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
258
259 template<typename T>
260 void put (keyword k, const T *v)
261 {
262 if (v)
263 put (k, v->name);
264 else
265 put (k, (const char *)0);
266 }
267
268 template<typename T>
269 void put (keyword k, const refptr<T> &v)
270 {
271 put (k, (T *)v);
272 }
273
274 bool save (const char *filename);
275 char *as_string (); // like strdup
276
277 operator bool () { return !!av; }
278};
279
280// compatibility support, should be removed when no longer needed
281int fprintf (object_freezer &freezer, const char *format, ...);
282int fputs (const char *s, object_freezer &freezer);
283
284struct object_thawer
285{
286 SV *text; // text part
287 AV *av; // perl part
288 char *line; // current beginning of line
289 char *last_value;
290
291 operator bool () { return !!text; }
292
293 object_thawer (const char *filename = 0);
294 object_thawer (const char *data, AV *perlav);
295 ~object_thawer ();
296
297 void get (data_type type, void *obj, attachable_base *ext, int oid);
298
299 template<class subclass>
300 void get (attachable<subclass> *obj, int oid)
301 {
302 if (av)
303 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
304 }
305
306 keyword get_kv (); // also parse value for later use
307
308 const char *get_str () { return last_value; } // may be 0
309
310 void get (shstr &sh) const;
311 void get_ornull (shstr &sh) const { sh = last_value; }
312 void get_ml (keyword kend, shstr &sh);
313
314 sint32 get_sint32 () const;
315 sint64 get_sint64 () const;
316 double get_double () const;
317
318 void get (float &v) { v = get_double (); }
319 void get (double &v) { v = get_double (); }
320
321 void get (sint8 &i) { i = get_sint32 (); }
322 void get (uint8 &i) { i = get_sint32 (); }
323 void get (sint16 &i) { i = get_sint32 (); }
324 void get (uint16 &i) { i = get_sint32 (); }
325 void get (sint32 &i) { i = get_sint32 (); }
326
327 void get (uint32 &i) { i = get_sint64 (); }
328 void get (sint64 &i) { i = get_sint64 (); }
329};
330
331char *fgets (char *s, int n, object_thawer &thawer);
332
333struct watcher_base
334{
335 static struct EventAPI *GEventAPI;
336};
337
338template<class base>
339struct watcher : watcher_base
340{
341 base *pe;
342
343 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
344 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
345 void now () { GEventAPI->now ((pe_watcher *)pe); }
346 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
347 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
348
349 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
350
351 ~watcher ()
352 {
353 cancel ();
354 }
355
356private:
357 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
358};
359
360struct iw : watcher<pe_idle>, callback<void (iw &)>
361{
362 template<class O, class M>
363 iw (O object, M method)
364 : callback<void (iw &)> (object, method)
365 {
366 alloc ();
367 }
368
369private:
370 void alloc ();
371};
372
373struct iow : watcher<pe_io>, callback<void (iow &, int)>
374{
375 template<class O, class M>
376 iow (O object, M method)
377 : callback<void (iow &, int)> (object, method)
378 {
379 alloc ();
380 }
381
382 void fd (int fd);
383 int poll ();
384 void poll (int events);
385
386private:
387 void alloc ();
388};
127 389
128#endif 390#endif
129 391

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