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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.13 by root, Mon Aug 28 16:52:51 2006 UTC vs.
Revision 1.29 by root, Thu Sep 21 00:05:25 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// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
16#undef localtime
17#undef srand48
18#undef drand48
19#undef srandom
20#undef readdir
21#undef getprotobyname
22#undef gethostbyname
23#undef ctime
24#undef strerror
25
26// perl bug #40256: perl does overwrite those with reentrant versions
27// but does not initialise their state structures.
28#undef random
29#undef crypt
10 30
11void cfperl_init (); 31void cfperl_init ();
12void cfperl_main (); 32void cfperl_main ();
13
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_AV, // perl-only av that needs to be flattened out
20 DT_INT,
21 DT_INT64,
22 DT_DOUBLE,
23 DT_STRING, // 0-terminated string
24 DT_DATA, // string + length
25 DT_OBJECT,
26 DT_MAP,
27 DT_PLAYER,
28 DT_ARCH,
29 DT_PARTY,
30 DT_REGION,
31
32 NUM_DATA_TYPES
33};
34 33
35enum event_klass 34enum event_klass
36{ 35{
37 KLASS_NONE, 36 KLASS_NONE,
38 KLASS_GLOBAL, 37 KLASS_GLOBAL,
… …
52#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 51#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
53#define ARG_INT(v) DT_INT , static_cast<int> (v) 52#define ARG_INT(v) DT_INT , static_cast<int> (v)
54#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
55#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
56#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
57#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) 56#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
58#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 57#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o)
59#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 58#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o)
60#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o)
61#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o)
62#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o)
63#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 62#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o)
64 63
65// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
66 65
67// all these return true when the normal event processing should be skipped (if any) 66// all these return true when the normal event processing should be skipped (if any)
68#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) 67#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
… …
74#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 73#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
75 74
76//TODO should index into @result 75//TODO should index into @result
77#define RESULT(idx,type) cfperl_result_ ## type (idx) 76#define RESULT(idx,type) cfperl_result_ ## type (idx)
78#define RESULT_INT(idx) RESULT(idx, INT) 77#define RESULT_INT(idx) RESULT(idx, INT)
78#define RESULT_MAP(idx) RESULT(idx, MAP)
79 79
80bool cfperl_invoke (event_type event, ...); 80bool cfperl_invoke (event_type event, ...);
81int cfperl_result_INT (int idx); 81int cfperl_result_INT (int idx);
82int cfperl_result_MAP (int idx);
82 83
83struct attachable_base 84struct attachable_base
84{ 85{
85 void *self, *cb; // CF+ perl self and callback 86 SV *self;
87 AV *cb; // CF+ perl self and callback
86 const char *attach; // generic extension attachment information 88 shstr attach; // generic extension attachment information
87 89
88 void clear (); // called when free'ing objects 90 void clear (); // called when free'ing objects
89 void optimise (); // possibly save some memory by destroying unneeded data 91 void optimise (); // possibly save some memory by destroying unneeded data
90 void instantiate (data_type type, void *obj); 92 void instantiate (data_type type, void *obj);
91 93
92 void attachable_init () 94 void attachable_clear ()
93 { 95 {
94 self = cb = 0; 96 self = 0;
97 cb = 0;
95 attach = 0; 98 attach = 0;
99 }
100
101 attachable_base ()
102 {
103 attachable_clear ();
104 }
105
106 ~attachable_base ()
107 {
108 clear ();
109 }
110
111 attachable_base (const attachable_base &src)
112 : self (0), cb (0), attach (src.attach)
113 {
114 }
115
116 attachable_base &operator = (const attachable_base &src)
117 {
118 clear ();
119 attach = src.attach;
120 return *this;
96 } 121 }
97}; 122};
98 123
99// objects attachable from perl (or any other extension) should include or 124// objects attachable from perl (or any other extension) should include or
100// derive using the curiously recurring template pattern, to avoid 125// derive using the curiously recurring template pattern, to avoid
101// virtual method calls etc. 126// virtual method calls etc.
102template<class subclass> 127template<class subclass>
103struct attachable : attachable_base 128struct attachable : attachable_base
104{ 129{
105 static data_type get_dt ()
106 {
107 return subclass::get_dt ();
108 }
109
110 void instantiate () 130 void instantiate ()
111 { 131 {
112 if (attach) 132 if (attach)
113 attachable_base::instantiate (get_dt (), static_cast<subclass *>(this)); 133 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
114 } 134 }
115}; 135};
116 136
117struct object_freezethaw 137struct object_freezer : dynbuf
118{ 138{
119 void *av; 139 AV *av;
120 FILE *fp;
121 140
122 operator FILE *() { return fp; } 141 object_freezer ();
123};
124
125struct object_freezer : object_freezethaw
126{
127 void *filename;
128
129 object_freezer (const char *filename);
130 ~object_freezer (); 142 ~object_freezer ();
131 143
132 void put (attachable_base *ext); 144 void put (attachable_base *ext);
133 145
134 template<class subclass> 146 template<class subclass>
135 void put (attachable<subclass> *obj) 147 void put (attachable<subclass> *obj)
136 { 148 {
137 put ((attachable_base *)obj); 149 put ((attachable_base *)obj);
138 } 150 }
139};
140 151
141struct object_thawer : object_freezethaw 152 // used only for user-defined key-value pairs
153 void put (const shstr &k, const shstr &v)
154 {
155 add (k);
156
157 if (v)
158 add (' '), add (v);
159
160 add ('\n');
161 }
162
163 //TODO//temporary, used only for saving body locations
164 void put (const char *k, int v)
165 {
166 add (k);
167 add (' ');
168 add (sint32 (v));
169 add ('\n');
170 }
171
172 template<typename T>
173 void put_string (keyword k, const T &v)
174 {
175 int klen = keyword_len [k];
176 int vlen = v ? strlen (v) + 1 : 0;
177
178 char *p = (char *)alloc (klen + vlen + 1);
179
180 memcpy (p, keyword_str [k], klen); p += klen;
181
182 if (v)
183 {
184 *p++ = ' '; vlen--;
185 memcpy (p, v, vlen); p += vlen;
186 }
187
188 *p = '\n';
189 }
190
191 void put (keyword k, const char *v)
192 {
193 put_string (k, v);
194 }
195
196 void put (keyword k, const shstr &v)
197 {
198 put_string (k, v);
199 }
200
201 void put (keyword k, double v)
202 {
203 char buf [128];
204
205 snprintf (buf, 128, "%.7g", v);
206
207 put (k, (const char *)buf);
208 }
209
210 void put_(keyword k, sint64 v)
211 {
212 add (keyword_str [k], keyword_len [k]);
213 add (' ');
214 add (v);
215 add ('\n');
216 }
217
218 void put_(keyword k, sint32 v)
219 {
220 add (keyword_str [k], keyword_len [k]);
221 add (' ');
222 add (v);
223 add ('\n');
224 }
225
226 void put (keyword kbeg, keyword kend, const shstr &v)
227 {
228 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
229
230 if (v)
231 {
232 add (v);
233 add ('\n');
234 }
235
236 add (keyword_str [kend], keyword_len [kend]); add ('\n');
237 }
238
239 void put (keyword k, float v) { put (k, (double)v); }
240 void put (keyword k, signed char v) { put_(k, (sint32)v); }
241 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
242 void put (keyword k, signed short v) { put_(k, (sint32)v); }
243 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
244 void put (keyword k, signed int v) { put_(k, (sint32)v); }
245 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
246 void put (keyword k, signed long v) { put_(k, (sint64)v); }
247 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
248 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
249 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
250
251 template<typename T>
252 void put (keyword k, T *v)
253 {
254 if (v)
255 put (k, v->name);
256 else
257 put (k, (const char *)0);
258 }
259
260 bool save (const char *filename);
261
262 operator bool () { return !!av; }
263};
264
265// compatibility support, should be removed when no longer needed
266int fprintf (object_freezer &freezer, const char *format, ...);
267int fputs (const char *s, object_freezer &freezer);
268
269struct object_thawer
142{ 270{
271 SV *text; // text part
272 AV *av; // perl part
273 char *line; // current beginning of line
274 char *last_value;
275
276 operator bool () { return !!text; }
277
143 object_thawer (FILE *fp, const char *filename = 0); 278 object_thawer (const char *filename = 0);
144 ~object_thawer (); 279 ~object_thawer ();
145 280
146 void get (data_type type, void *obj, attachable_base *ext, int oid); 281 void get (data_type type, void *obj, attachable_base *ext, int oid);
147 282
148 template<class subclass> 283 template<class subclass>
149 void get (attachable<subclass> *obj, int oid) 284 void get (attachable<subclass> *obj, int oid)
150 { 285 {
151 if (av) 286 if (av)
152 get (subclass::get_dt (), (subclass *)obj, obj, oid); 287 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
153 } 288 }
289
290 keyword get_kv (); // also parse value for later use
291
292 const char *get_str () { return last_value; } // may be 0
293
294 void get (shstr &sh) const;
295 void get_ornull (shstr &sh) const { sh = last_value; }
296 void get_ml (keyword kend, shstr &sh);
297
298 sint32 get_sint32 () const;
299 sint64 get_sint64 () const;
300 double get_double () const;
301
302 void get (float &v) { v = get_double (); }
303 void get (double &v) { v = get_double (); }
304
305 void get (sint8 &i) { i = get_sint32 (); }
306 void get (uint8 &i) { i = get_sint32 (); }
307 void get (sint16 &i) { i = get_sint32 (); }
308 void get (uint16 &i) { i = get_sint32 (); }
309 void get (sint32 &i) { i = get_sint32 (); }
310
311 void get (uint32 &i) { i = get_sint64 (); }
312 void get (sint64 &i) { i = get_sint64 (); }
154}; 313};
314
315char *fgets (char *s, int n, object_thawer &thawer);
155 316
156#endif 317#endif
157 318

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