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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.10 by root, Sun Aug 27 17:59:26 2006 UTC vs.
Revision 1.40 by root, Tue Dec 19 04:58:04 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_CLIENT,
38 KLASS_PLAYER, 47 KLASS_PLAYER,
39 KLASS_OBJECT, 48 KLASS_OBJECT,
40 KLASS_MAP, 49 KLASS_MAP,
50 KLASS_COMMAND,
41}; 51};
42 52
43enum event_type 53enum event_type
44{ 54{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 55# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 56# include "eventinc.h"
47# undef def 57# undef def
48 NUM_EVENT_TYPES 58 NUM_EVENT_TYPES
49}; 59};
50 60
61#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
51#define ARG_INT(v) DT_INT , static_cast<int> (v) 62#define ARG_INT(v) DT_INT , static_cast<int> (v)
52#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 63#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
53#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 64#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
54#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 65#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) 66#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) 67#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o)
57#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 68#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o)
58#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 69#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o)
59#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 70#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o)
60#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 71#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o)
61#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 72#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o)
73#define ARG_CLIENT(o) DT_CLIENT, (void *)static_cast<client *> (o)
62 74
63// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 75// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
64 76
65// all these return true when the normal event processing should be skipped (if any) 77// 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) 78#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
67 79
68#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) 80#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
69#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) 81#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
70#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) 82#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
83#define INVOKE_CLIENT(event, ns, ...) INVOKE_(EVENT_ ## CLIENT ## _ ## event, ARG_CLIENT (ns), ## __VA_ARGS__)
71#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 84#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
72#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 85#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
73 86
74//TODO should index into @result 87//TODO should index into @result
75#define RESULT(idx,type) cfperl_result_ ## type (idx) 88#define RESULT(idx,type) cfperl_result_ ## type (idx)
89#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
76#define RESULT_INT(idx) RESULT(idx, INT) 90#define RESULT_INT(idx) RESULT(idx, INT)
77 91
78bool cfperl_invoke (event_type event, ...); 92bool cfperl_invoke (event_type event, ...);
93double cfperl_result_DOUBLE (int idx);
79int cfperl_result_INT (int idx); 94int cfperl_result_INT (int idx);
80 95
81struct attachable_base 96struct attachable_base
82{ 97{
83 void *self, *cb; // CF+ perl self and callback 98 SV *self; // CF+ perl self
99 AV *cb; // CF+ callbacks
84 const char *attach; // generic extension attachment information 100 shstr attach; // generic extension attachment information
85 101
86 void clear (); // called when free'ing objects 102 void clear (); // called when free'ing objects
87 void optimise (); // possibly save some memory by destroying unneeded data 103 void optimise (); // possibly save some memory by destroying unneeded data
104 void instantiate (data_type type, void *obj);
88 105
89 void attachable_init () 106 void attachable_clear ()
90 { 107 {
91 self = cb = 0; 108 self = 0;
109 cb = 0;
92 attach = 0; 110 attach = 0;
111 }
112
113 attachable_base ()
114 {
115 attachable_clear ();
116 }
117
118 ~attachable_base ()
119 {
120 clear ();
121 }
122
123 attachable_base (const attachable_base &src)
124 : self (0), cb (0), attach (src.attach)
125 {
126 }
127
128 attachable_base &operator =(const attachable_base &src)
129 {
130 clear ();
131 attach = src.attach;
132 return *this;
93 } 133 }
94}; 134};
95 135
96// objects attachable from perl (or any other extension) should include or 136// objects attachable from perl (or any other extension) should include or
97// derive using the curiously recurring template pattern, to avoid 137// derive using the curiously recurring template pattern, to avoid
98// virtual method calls etc. 138// virtual method calls etc.
99template<class subclass> 139template<class subclass>
100struct attachable : attachable_base 140struct attachable : attachable_base
101{ 141{
102 static data_type get_dt () 142 void instantiate ()
103 { 143 {
104 subclass::get_dt (); 144 if (attach)
145 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
105 } 146 }
106}; 147};
107 148
108struct object_freezer 149struct object_freezer : dynbuf
109{ 150{
110 const char *filename; 151 AV *av;
111 void *av;
112 int idx;
113 152
114 object_freezer (const char *filename); 153 object_freezer ();
115 ~object_freezer (); 154 ~object_freezer ();
116 155
117 void put (attachable_base *ext); 156 void put (attachable_base *ext);
118 157
119 template<class subclass> 158 template<class subclass>
120 void put (attachable<subclass> *obj) 159 void put (attachable<subclass> *obj)
121 { 160 {
122 put ((attachable_base *)obj); 161 put ((attachable_base *)obj);
123 } 162 }
124 163
125 void finish (); 164 // used only for user-defined key-value pairs
165 void put (const shstr &k, const shstr &v)
166 {
167 add (k);
168
169 if (v)
170 add (' '), add (v);
171
172 add ('\n');
173 }
174
175 //TODO//temporary, used only for saving body locations
176 void put (const char *k, int v)
177 {
178 add (k);
179 add (' ');
180 add (sint32 (v));
181 add ('\n');
182 }
183
184 template<typename T>
185 void put_string (keyword k, const T &v)
186 {
187 int klen = keyword_len [k];
188 int vlen = v ? strlen (v) + 1 : 0;
189
190 char *p = (char *)alloc (klen + vlen + 1);
191
192 memcpy (p, keyword_str [k], klen); p += klen;
193
194 if (v)
195 {
196 *p++ = ' '; vlen--;
197 memcpy (p, v, vlen); p += vlen;
198 }
199
200 *p = '\n';
201 }
202
203 void put (keyword k, const char *v)
204 {
205 put_string (k, v);
206 }
207
208 void put (keyword k, const shstr &v)
209 {
210 put_string (k, v);
211 }
212
213 void put (keyword k, double v)
214 {
215 char buf [128];
216
217 snprintf (buf, 128, "%.7g", v);
218
219 put (k, (const char *)buf);
220 }
221
222 void put_(keyword k, sint64 v)
223 {
224 add (keyword_str [k], keyword_len [k]);
225 add (' ');
226 add (v);
227 add ('\n');
228 }
229
230 void put_(keyword k, sint32 v)
231 {
232 add (keyword_str [k], keyword_len [k]);
233 add (' ');
234 add (v);
235 add ('\n');
236 }
237
238 void put (keyword kbeg, keyword kend, const shstr &v)
239 {
240 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
241
242 if (v)
243 {
244 add (v);
245 add ('\n');
246 }
247
248 add (keyword_str [kend], keyword_len [kend]); add ('\n');
249 }
250
251 void put (keyword k, float v) { put (k, (double)v); }
252 void put (keyword k, signed char v) { put_(k, (sint32)v); }
253 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
254 void put (keyword k, signed short v) { put_(k, (sint32)v); }
255 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
256 void put (keyword k, signed int v) { put_(k, (sint32)v); }
257 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
258 void put (keyword k, signed long v) { put_(k, (sint64)v); }
259 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
260 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
261 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
262
263 template<typename T>
264 void put (keyword k, const T *v)
265 {
266 if (v)
267 put (k, v->name);
268 else
269 put (k, (const char *)0);
270 }
271
272 template<typename T>
273 void put (keyword k, const refptr<T> &v)
274 {
275 put (k, (T *)v);
276 }
277
278 bool save (const char *filename);
279 char *as_string (); // like strdup
280
281 operator bool () { return !!av; }
126}; 282};
283
284// compatibility support, should be removed when no longer needed
285int fprintf (object_freezer &freezer, const char *format, ...);
286int fputs (const char *s, object_freezer &freezer);
127 287
128struct object_thawer 288struct object_thawer
129{ 289{
130 void *av; 290 SV *text; // text part
131 int idx; 291 AV *av; // perl part
292 char *line; // current beginning of line
293 char *last_value;
294
295 operator bool () { return !!text; }
132 296
133 object_thawer (const char *filename = 0); 297 object_thawer (const char *filename = 0);
298 object_thawer (const char *data, AV *perlav);
134 ~object_thawer (); 299 ~object_thawer ();
135 300
136 void get (data_type type, void *obj, attachable_base *ext); 301 void get (data_type type, void *obj, attachable_base *ext, int oid);
137 302
138 template<class subclass> 303 template<class subclass>
139 void get (attachable<subclass> *obj) 304 void get (attachable<subclass> *obj, int oid)
140 { 305 {
141 if (av) 306 if (av)
142 get (subclass::get_dt (), (subclass *)obj, obj); 307 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
143 } 308 }
144 309
145 void finish (); 310 keyword get_kv (); // also parse value for later use
311
312 const char *get_str () { return last_value; } // may be 0
313
314 void get (shstr &sh) const;
315 void get_ornull (shstr &sh) const { sh = last_value; }
316 void get_ml (keyword kend, shstr &sh);
317
318 sint32 get_sint32 () const;
319 sint64 get_sint64 () const;
320 double get_double () const;
321
322 void get (float &v) { v = get_double (); }
323 void get (double &v) { v = get_double (); }
324
325 void get (sint8 &i) { i = get_sint32 (); }
326 void get (uint8 &i) { i = get_sint32 (); }
327 void get (sint16 &i) { i = get_sint32 (); }
328 void get (uint16 &i) { i = get_sint32 (); }
329 void get (sint32 &i) { i = get_sint32 (); }
330
331 void get (uint32 &i) { i = get_sint64 (); }
332 void get (sint64 &i) { i = get_sint64 (); }
333};
334
335char *fgets (char *s, int n, object_thawer &thawer);
336
337struct watcher_base
338{
339 static struct EventAPI *GEventAPI;
340};
341
342template<class base>
343struct watcher : watcher_base
344{
345 base *pe;
346
347 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
348 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
349 void now () { GEventAPI->now ((pe_watcher *)pe); }
350 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
351 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
352
353 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
354
355 ~watcher ()
356 {
357 cancel ();
358 }
359
360private:
361 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
362};
363
364struct iw : watcher<pe_idle>, callback<void (iw &)>
365{
366 template<class O, class M>
367 iw (O object, M method)
368 : callback<void (iw &)> (object, method)
369 {
370 alloc ();
371 }
372
373private:
374 void alloc ();
375};
376
377struct iow : watcher<pe_io>, callback<void (iow &, int)>
378{
379 template<class O, class M>
380 iow (O object, M method)
381 : callback<void (iow &, int)> (object, method)
382 {
383 alloc ();
384 }
385
386 void fd (int fd);
387 int poll ();
388 void poll (int events);
389
390private:
391 void alloc ();
146}; 392};
147 393
148#endif 394#endif
149 395

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