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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.16 by root, Wed Aug 30 16:30:37 2006 UTC vs.
Revision 1.37 by root, Fri Dec 15 19:59:19 2006 UTC

… …
8 8
9using namespace std; 9using namespace std;
10 10
11#include <EXTERN.h> 11#include <EXTERN.h>
12#include <perl.h> 12#include <perl.h>
13#include <XSUB.h>
14
15#include <EventAPI.h>
16
17#include "callback.h"
13 18
14// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 19// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
15#undef localtime 20#undef localtime
16#undef srand48 21#undef srand48
17#undef drand48 22#undef drand48
… …
25// perl bug #40256: perl does overwrite those with reentrant versions 30// perl bug #40256: perl does overwrite those with reentrant versions
26// but does not initialise their state structures. 31// but does not initialise their state structures.
27#undef random 32#undef random
28#undef crypt 33#undef crypt
29 34
30struct pl;
31struct object;
32struct mapstruct;
33
34void cfperl_init (); 35void cfperl_init ();
35void cfperl_boot ();
36void cfperl_main (); 36void cfperl_main ();
37
38// could have used templates, but a more traditional C api
39// uses more explicit typing which is ok for this purpose.
40enum data_type
41{
42 DT_END, // no further arguments
43 DT_AV, // perl-only av that needs to be flattened out
44 DT_INT,
45 DT_INT64,
46 DT_DOUBLE,
47 DT_STRING, // 0-terminated string
48 DT_DATA, // string + length
49 DT_OBJECT,
50 DT_MAP,
51 DT_PLAYER,
52 DT_ARCH,
53 DT_PARTY,
54 DT_REGION,
55
56 NUM_DATA_TYPES
57};
58 37
59enum event_klass 38enum event_klass
60{ 39{
61 KLASS_NONE, 40 KLASS_NONE,
62 KLASS_GLOBAL, 41 KLASS_GLOBAL,
42 KLASS_SOCKET,
63 KLASS_PLAYER, 43 KLASS_PLAYER,
64 KLASS_OBJECT, 44 KLASS_OBJECT,
65 KLASS_MAP, 45 KLASS_MAP,
46 KLASS_COMMAND,
66}; 47};
67 48
68enum event_type 49enum event_type
69{ 50{
70# define def(klass,name) EVENT_ ## klass ## _ ## name, 51# define def(klass,name) EVENT_ ## klass ## _ ## name,
… …
76#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 57#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
77#define ARG_INT(v) DT_INT , static_cast<int> (v) 58#define ARG_INT(v) DT_INT , static_cast<int> (v)
78#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 59#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
79#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 60#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
80#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 61#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
81#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)
82#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 63#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o)
83#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 64#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o)
84#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 65#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o)
85#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 66#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o)
86#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 67#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o)
87#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)
88 70
89// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 71// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
90 72
91// 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)
92#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) 74#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
93 75
94#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) 76#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
95#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) 77#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
96#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## 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__)
97#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 80#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
98#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 81#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
99 82
100//TODO should index into @result 83//TODO should index into @result
101#define RESULT(idx,type) cfperl_result_ ## type (idx) 84#define RESULT(idx,type) cfperl_result_ ## type (idx)
85#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
102#define RESULT_INT(idx) RESULT(idx, INT) 86#define RESULT_INT(idx) RESULT(idx, INT)
103 87
104bool cfperl_invoke (event_type event, ...); 88bool cfperl_invoke (event_type event, ...);
89double cfperl_result_DOUBLE (int idx);
105int cfperl_result_INT (int idx); 90int cfperl_result_INT (int idx);
106 91
107struct attachable_base 92struct attachable_base
108{ 93{
109 struct sv *self; 94 SV *self; // CF+ perl self
110 struct av *cb; // CF+ perl self and callback 95 AV *cb; // CF+ callbacks
111 const char *attach; // generic extension attachment information 96 shstr attach; // generic extension attachment information
112 97
113 void clear (); // called when free'ing objects 98 void clear (); // called when free'ing objects
114 void optimise (); // possibly save some memory by destroying unneeded data 99 void optimise (); // possibly save some memory by destroying unneeded data
115 void instantiate (data_type type, void *obj); 100 void instantiate (data_type type, void *obj);
116 101
117 void attachable_init () 102 void attachable_clear ()
118 { 103 {
119 self = 0; 104 self = 0;
120 cb = 0; 105 cb = 0;
121 attach = 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;
122 } 129 }
123}; 130};
124 131
125// objects attachable from perl (or any other extension) should include or 132// objects attachable from perl (or any other extension) should include or
126// derive using the curiously recurring template pattern, to avoid 133// derive using the curiously recurring template pattern, to avoid
127// virtual method calls etc. 134// virtual method calls etc.
128template<class subclass> 135template<class subclass>
129struct attachable : attachable_base 136struct attachable : attachable_base
130{ 137{
131 static data_type get_dt ()
132 {
133 return subclass::get_dt ();
134 }
135
136 void instantiate () 138 void instantiate ()
137 { 139 {
138 if (attach) 140 if (attach)
139 attachable_base::instantiate (get_dt (), static_cast<subclass *>(this)); 141 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
140 } 142 }
141}; 143};
142 144
143struct object_freezethaw 145struct object_freezer : dynbuf
144{ 146{
145 struct av *av; 147 AV *av;
146};
147 148
148struct object_freezer : object_freezethaw 149 object_freezer ();
149{
150 struct sv *text;
151 void *filename;
152
153 object_freezer (const char *filename);
154 ~object_freezer (); 150 ~object_freezer ();
155 151
156 void put (attachable_base *ext); 152 void put (attachable_base *ext);
157 153
158 template<class subclass> 154 template<class subclass>
159 void put (attachable<subclass> *obj) 155 void put (attachable<subclass> *obj)
160 { 156 {
161 put ((attachable_base *)obj); 157 put ((attachable_base *)obj);
162 } 158 }
163 159
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)
191 {
192 *p++ = ' '; vlen--;
193 memcpy (p, v, vlen); p += vlen;
194 }
195
196 *p = '\n';
197 }
198
199 void put (keyword k, const char *v)
200 {
201 put_string (k, v);
202 }
203
204 void put (keyword k, const shstr &v)
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)
239 {
240 add (v);
241 add ('\n');
242 }
243
244 add (keyword_str [kend], keyword_len [kend]); add ('\n');
245 }
246
247 void put (keyword k, float v) { put (k, (double)v); }
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
164 operator bool () { return !!av; } 277 operator bool () { return !!av; }
165};
166
167struct object_thawer : object_freezethaw
168{
169 FILE *fp;
170
171 object_thawer (const char *filename = 0);
172 ~object_thawer ();
173
174 void get (data_type type, void *obj, attachable_base *ext, int oid);
175
176 template<class subclass>
177 void get (attachable<subclass> *obj, int oid)
178 {
179 if (av)
180 get (subclass::get_dt (), (subclass *)obj, obj, oid);
181 }
182
183 operator FILE *() { return fp; }
184}; 278};
185 279
186// compatibility support, should be removed when no longer needed 280// compatibility support, should be removed when no longer needed
187int fprintf (object_freezer &freezer, const char *format, ...); 281int fprintf (object_freezer &freezer, const char *format, ...);
188int fputs (const char *s, object_freezer &freezer); 282int fputs (const char *s, object_freezer &freezer);
189 283
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 iow : watcher<pe_io>, callback<void (iow &, int)>
361{
362 template<class O, class M>
363 iow (O object, M method)
364 : callback<void (iow &, int)> (object, method)
365 {
366 alloc ();
367 }
368
369 iow &fd (int fd);
370 int poll ();
371 iow &poll (int events);
372
373private:
374 void alloc ();
375};
376
190#endif 377#endif
191 378

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