ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/include/cfperl.h
(Generate patch)

Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.9 by root, Sun Aug 27 15:24:21 2006 UTC vs.
Revision 1.41 by root, Mon Dec 25 11:25:49 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#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// same here, massive symbol spamming
31#undef do_open
32#undef do_close
33
34// perl bug #40256: perl does overwrite those with reentrant versions
35// but does not initialise their state structures.
36#undef random
37#undef crypt
10 38
11void cfperl_init (); 39void cfperl_init ();
12void cfperl_main (); 40void cfperl_main ();
13 41
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_INT,
20 DT_INT64,
21 DT_DOUBLE,
22 DT_STRING, // 0-terminated string
23 DT_DATA, // string + length
24 DT_OBJECT,
25 DT_MAP,
26 DT_PLAYER,
27 DT_ARCH,
28 DT_PARTY,
29 DT_REGION,
30 DT_AV, // av that needs to be flattened out
31
32 NUM_DATA_TYPES
33};
34
35enum event_klass 42enum event_klass
36{ 43{
44 KLASS_NONE,
37 KLASS_GLOBAL, 45 KLASS_GLOBAL,
46 KLASS_ATTACHABLE,
47 KLASS_CLIENT,
38 KLASS_PLAYER, 48 KLASS_PLAYER,
39 KLASS_OBJECT, 49 KLASS_OBJECT,
40 KLASS_MAP, 50 KLASS_MAP,
51 KLASS_COMMAND,
41}; 52};
42 53
43enum event_type 54enum event_type
44{ 55{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 56# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 57# include "eventinc.h"
47# undef def 58# undef def
48 NUM_EVENT_TYPES 59 NUM_EVENT_TYPES
49}; 60};
50 61
62#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
51#define ARG_INT(v) DT_INT , static_cast<int> (v) 63#define ARG_INT(v) DT_INT , static_cast<int> (v)
52#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 64#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
53#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 65#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
54#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 66#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
55#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) 67#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
56#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 68#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
57#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 69#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
58#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 70#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
59#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 71#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
72#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
60#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 73#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
61#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 74#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
62 75
63// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 76// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
64 77
65// all these return true when the normal event processing should be skipped (if any) 78// all these return true when the normal event processing should be skipped (if any)
66#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
67
68#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
69#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) 79#define INVOKE_GLOBAL(event, ...) gbl_ev.invoke (EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__, DT_END)
70#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) 80#define INVOKE_ATTACHABLE(event, obj, ...) (obj)->invoke (EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__, DT_END)
71#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 81#define INVOKE_OBJECT(event, obj, ...) (obj)->invoke (EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__, DT_END)
72#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 82#define INVOKE_CLIENT(event, obj, ...) (obj)->invoke (EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__, DT_END)
83#define INVOKE_PLAYER(event, obj, ...) (obj)->invoke (EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__, DT_END)
84#define INVOKE_MAP(event, obj, ...) (obj)->invoke (EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__, DT_END)
73 85
74//TODO should index into @result 86//TODO should index into @result
75#define RESULT(idx,type) cfperl_result_ ## type (idx) 87#define RESULT(idx,type) cfperl_result_ ## type (idx)
88#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
76#define RESULT_INT(idx) RESULT(idx, INT) 89#define RESULT_INT(idx) RESULT(idx, INT)
77 90
78bool cfperl_invoke (event_type event, ...); 91double cfperl_result_DOUBLE (int idx);
79int cfperl_result_INT (int idx); 92int cfperl_result_INT (int idx);
80 93
81struct extendable_base 94struct attachable
82{ 95{
83 void *self, *cb; // CF+ perl self and callback 96 static unordered_vector<attachable *> mortals;
97 static void check_mortals ();
98
99 enum {
100 F_DESTROYED = 0x01,
101 F_BORROWED = 0x02,
102 };
103
104 // object is delete'd after the refcount reaches 0
105 mutable int refcnt;
106 int flags;
107
108 void refcnt_inc () const { ++refcnt; }
109 void refcnt_dec () const { --refcnt; }
110
111 // check wether the object has died and destroy
112 void refcnt_chk () { if (refcnt <= 0) do_check (); }
113
114 // destroy the object unless it was already destroyed
115 // this politely asks everybody interested the reduce
116 // the refcount to 0 as soon as possible.
117 void destroy ();
118
119 // return wether an object was destroyed already
120 bool destroyed () const { return flags & F_DESTROYED; }
121
122 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
123
124#if 0
125private:
126 static refcounted *rc_first;
127 refcounted *rc_next;
128#endif
129
130 HV *self; // CF+ perl self
131 AV *cb; // CF+ callbacks
84 const char *attach; // generic extension attachment information 132 shstr attach; // generic extension attachment information
85 133
86 void clear (); // called when free'ing objects
87 void optimise (); // possibly save some memory by destroying unneeded data 134 void optimise (); // possibly save some memory by destroying unneeded data
88 135
89 void extendable_init () 136 attachable ()
137 : flags (0), refcnt (0), self (0), cb (0), attach (0)
90 { 138 {
91 self = cb = 0;
92 attach = 0;
93 } 139 }
94};
95 140
96// objects extendable from perl (or any other extension) should include or 141 attachable (const attachable &src)
97// derive using the curiously recurring template pattern, to avoid 142 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
98// virtual method calls etc.
99template<class subclass>
100struct extendable : extendable_base
101{
102 static data_type get_dt ()
103 { 143 {
104 subclass::get_dt ();
105 } 144 }
106};
107 145
146 virtual ~attachable ();
147
148 attachable &operator =(const attachable &src);
149
150 bool invoke (event_type event, ...);
151 void instantiate ();
152 void reattach ();
153
154protected:
155 // do the real refcount checking work
156 void do_check ();
157
158 // the method that does the real destroy work
159 virtual void do_destroy ();
160};
161
162// the global object is a pseudo object that cares for the global events
163struct global : attachable
164{
165 void gather_callbacks (AV *&callbacks, event_type event) const;
166};
167
168extern struct global gbl_ev;
169
108struct object_freezer 170struct object_freezer : dynbuf
109{ 171{
110 const char *filename; 172 AV *av;
111 void *av;
112 int idx;
113 173
114 object_freezer (const char *filename); 174 object_freezer ();
115 ~object_freezer (); 175 ~object_freezer ();
116 176
117 void put (extendable_base *ext); 177 void put (attachable *ext);
118 178
119 template<class subclass> 179 // used only for user-defined key-value pairs
120 void put (extendable<subclass> *obj) 180 void put (const shstr &k, const shstr &v)
121 { 181 {
122 put ((extendable_base *)obj); 182 add (k);
123 }
124 183
125 void finish (); 184 if (v)
185 add (' '), add (v);
186
187 add ('\n');
188 }
189
190 //TODO//temporary, used only for saving body locations
191 void put (const char *k, int v)
192 {
193 add (k);
194 add (' ');
195 add (sint32 (v));
196 add ('\n');
197 }
198
199 template<typename T>
200 void put_string (keyword k, const T &v)
201 {
202 int klen = keyword_len [k];
203 int vlen = v ? strlen (v) + 1 : 0;
204
205 char *p = (char *)alloc (klen + vlen + 1);
206
207 memcpy (p, keyword_str [k], klen); p += klen;
208
209 if (v)
210 {
211 *p++ = ' '; vlen--;
212 memcpy (p, v, vlen); p += vlen;
213 }
214
215 *p = '\n';
216 }
217
218 void put (keyword k, const char *v)
219 {
220 put_string (k, v);
221 }
222
223 void put (keyword k, const shstr &v)
224 {
225 put_string (k, v);
226 }
227
228 void put (keyword k, double v)
229 {
230 char buf [128];
231
232 snprintf (buf, 128, "%.7g", v);
233
234 put (k, (const char *)buf);
235 }
236
237 void put_(keyword k, sint64 v)
238 {
239 add (keyword_str [k], keyword_len [k]);
240 add (' ');
241 add (v);
242 add ('\n');
243 }
244
245 void put_(keyword k, sint32 v)
246 {
247 add (keyword_str [k], keyword_len [k]);
248 add (' ');
249 add (v);
250 add ('\n');
251 }
252
253 void put (keyword kbeg, keyword kend, const shstr &v)
254 {
255 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
256
257 if (v)
258 {
259 add (v);
260 add ('\n');
261 }
262
263 add (keyword_str [kend], keyword_len [kend]); add ('\n');
264 }
265
266 void put (keyword k, float v) { put (k, (double)v); }
267 void put (keyword k, signed char v) { put_(k, (sint32)v); }
268 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
269 void put (keyword k, signed short v) { put_(k, (sint32)v); }
270 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
271 void put (keyword k, signed int v) { put_(k, (sint32)v); }
272 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
273 void put (keyword k, signed long v) { put_(k, (sint64)v); }
274 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
275 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
276 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
277
278 template<typename T>
279 void put (keyword k, const T *v)
280 {
281 if (v)
282 put (k, v->name);
283 else
284 put (k, (const char *)0);
285 }
286
287 template<typename T>
288 void put (keyword k, const refptr<T> &v)
289 {
290 put (k, (T *)v);
291 }
292
293 bool save (const char *filename);
294 char *as_string (); // like strdup
295
296 operator bool () { return !!av; }
126}; 297};
298
299// compatibility support, should be removed when no longer needed
300int fprintf (object_freezer &freezer, const char *format, ...);
301int fputs (const char *s, object_freezer &freezer);
127 302
128struct object_thawer 303struct object_thawer
129{ 304{
130 void *av; 305 SV *text; // text part
131 int idx; 306 AV *av; // perl part
307 char *line; // current beginning of line
308 char *last_value;
309
310 operator bool () { return !!text; }
132 311
133 object_thawer (const char *filename = 0); 312 object_thawer (const char *filename = 0);
313 object_thawer (const char *data, AV *perlav);
134 ~object_thawer (); 314 ~object_thawer ();
135 315
136 void get (data_type type, void *obj, extendable_base *ext); 316 void get (attachable *obj, int oid);
137 317
318 keyword get_kv (); // also parse value for later use
319
320 const char *get_str () { return last_value; } // may be 0
321
322 void get (shstr &sh) const;
323 void get_ornull (shstr &sh) const { sh = last_value; }
324 void get_ml (keyword kend, shstr &sh);
325
326 sint32 get_sint32 () const;
327 sint64 get_sint64 () const;
328 double get_double () const;
329
330 void get (float &v) { v = get_double (); }
331 void get (double &v) { v = get_double (); }
332
333 void get (sint8 &i) { i = get_sint32 (); }
334 void get (uint8 &i) { i = get_sint32 (); }
335 void get (sint16 &i) { i = get_sint32 (); }
336 void get (uint16 &i) { i = get_sint32 (); }
337 void get (sint32 &i) { i = get_sint32 (); }
338
339 void get (uint32 &i) { i = get_sint64 (); }
340 void get (sint64 &i) { i = get_sint64 (); }
341};
342
343char *fgets (char *s, int n, object_thawer &thawer);
344
345struct watcher_base
346{
347 static struct EventAPI *GEventAPI;
348};
349
350template<class base>
351struct watcher : watcher_base
352{
353 base *pe;
354
355 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
356 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
357 void now () { GEventAPI->now ((pe_watcher *)pe); }
358 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
359 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
360
361 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
362
363 ~watcher ()
364 {
365 cancel ();
366 }
367
368private:
369 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
370};
371
372struct iw : watcher<pe_idle>, callback<void (iw &)>
373{
138 template<class subclass> 374 template<class O, class M>
139 void get (extendable<subclass> *obj) 375 iw (O object, M method)
376 : callback<void (iw &)> (object, method)
140 { 377 {
141 if (av) 378 alloc ();
142 get (subclass::get_dt (), (subclass *)obj, obj);
143 } 379 }
144 380
145 void finish (); 381private:
382 void alloc ();
383};
384
385struct iow : watcher<pe_io>, callback<void (iow &, int)>
386{
387 template<class O, class M>
388 iow (O object, M method)
389 : callback<void (iow &, int)> (object, method)
390 {
391 alloc ();
392 }
393
394 void fd (int fd);
395 int poll ();
396 void poll (int events);
397
398private:
399 void alloc ();
146}; 400};
147 401
148#endif 402#endif
149 403

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines