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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 1.36 by root, Thu Dec 14 20:39:54 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// perl bug #40256: perl does overwrite those with reentrant versions
31// but does not initialise their state structures.
32#undef random
33#undef crypt
10 34
11void cfperl_init (); 35void cfperl_init ();
12void cfperl_main (); 36void cfperl_main ();
13 37
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 38enum event_klass
36{ 39{
40 KLASS_NONE,
37 KLASS_GLOBAL, 41 KLASS_GLOBAL,
42 KLASS_SOCKET,
38 KLASS_PLAYER, 43 KLASS_PLAYER,
39 KLASS_OBJECT, 44 KLASS_OBJECT,
40 KLASS_MAP, 45 KLASS_MAP,
46 KLASS_COMMAND,
41}; 47};
42 48
43enum event_type 49enum event_type
44{ 50{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 51# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 52# include "eventinc.h"
47# undef def 53# undef def
48 NUM_EVENT_TYPES 54 NUM_EVENT_TYPES
49}; 55};
50 56
57#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
51#define ARG_INT(v) DT_INT , static_cast<int> (v) 58#define ARG_INT(v) DT_INT , static_cast<int> (v)
52#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 59#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
53#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 60#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
54#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 61#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) 62#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) 63#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o)
57#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 64#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o)
58#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 65#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o)
59#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 66#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o)
60#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 67#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o)
61#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_socket *> (o)
62 70
63// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 71// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
64 72
65// 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)
66#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) 74#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
67 75
68#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) 76#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
69#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) 77#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__) 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__)
71#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__)
72#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__)
73 82
74//TODO should index into @result 83//TODO should index into @result
75#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)
76#define RESULT_INT(idx) RESULT(idx, INT) 86#define RESULT_INT(idx) RESULT(idx, INT)
77 87
78bool cfperl_invoke (event_type event, ...); 88bool cfperl_invoke (event_type event, ...);
89double cfperl_result_DOUBLE (int idx);
79int cfperl_result_INT (int idx); 90int cfperl_result_INT (int idx);
80 91
81struct attachable_base 92struct attachable_base
82{ 93{
83 void *self, *cb; // CF+ perl self and callback 94 SV *self; // CF+ perl self
95 AV *cb; // CF+ callbacks
84 const char *attach; // generic extension attachment information 96 shstr attach; // generic extension attachment information
85 97
86 void clear (); // called when free'ing objects 98 void clear (); // called when free'ing objects
87 void optimise (); // possibly save some memory by destroying unneeded data 99 void optimise (); // possibly save some memory by destroying unneeded data
100 void instantiate (data_type type, void *obj);
88 101
89 void attachable_init () 102 void attachable_clear ()
90 { 103 {
91 self = cb = 0; 104 self = 0;
105 cb = 0;
92 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;
93 } 129 }
94}; 130};
95 131
96// objects attachable from perl (or any other extension) should include or 132// objects attachable from perl (or any other extension) should include or
97// derive using the curiously recurring template pattern, to avoid 133// derive using the curiously recurring template pattern, to avoid
98// virtual method calls etc. 134// virtual method calls etc.
99template<class subclass> 135template<class subclass>
100struct attachable : attachable_base 136struct attachable : attachable_base
101{ 137{
102 static data_type get_dt () 138 void instantiate ()
103 { 139 {
104 subclass::get_dt (); 140 if (attach)
141 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
105 } 142 }
106}; 143};
107 144
108struct object_freezer 145struct object_freezer : dynbuf
109{ 146{
110 const char *filename; 147 AV *av;
111 void *av;
112 int idx;
113 148
114 object_freezer (const char *filename); 149 object_freezer ();
115 ~object_freezer (); 150 ~object_freezer ();
116 151
117 void put (attachable_base *ext); 152 void put (attachable_base *ext);
118 153
119 template<class subclass> 154 template<class subclass>
120 void put (attachable<subclass> *obj) 155 void put (attachable<subclass> *obj)
121 { 156 {
122 put ((attachable_base *)obj); 157 put ((attachable_base *)obj);
123 } 158 }
124 159
125 void finish (); 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
277 operator bool () { return !!av; }
126}; 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);
127 283
128struct object_thawer 284struct object_thawer
129{ 285{
130 void *av; 286 SV *text; // text part
131 int idx; 287 AV *av; // perl part
288 char *line; // current beginning of line
289 char *last_value;
290
291 operator bool () { return !!text; }
132 292
133 object_thawer (const char *filename = 0); 293 object_thawer (const char *filename = 0);
294 object_thawer (const char *data, AV *perlav);
134 ~object_thawer (); 295 ~object_thawer ();
135 296
136 void get (data_type type, void *obj, attachable_base *ext); 297 void get (data_type type, void *obj, attachable_base *ext, int oid);
137 298
138 template<class subclass> 299 template<class subclass>
139 void get (attachable<subclass> *obj) 300 void get (attachable<subclass> *obj, int oid)
140 { 301 {
141 if (av) 302 if (av)
142 get (subclass::get_dt (), (subclass *)obj, obj); 303 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
143 } 304 }
144 305
145 void finish (); 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 ();
146}; 375};
147 376
148#endif 377#endif
149 378

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