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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.7 by root, Sat Aug 26 23:36:32 2006 UTC vs.
Revision 1.21 by root, Sun Sep 3 22:45:56 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 33
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
33enum event_klass 34enum event_klass
34{ 35{
36 KLASS_NONE,
35 KLASS_GLOBAL, 37 KLASS_GLOBAL,
36 KLASS_PLAYER, 38 KLASS_PLAYER,
37 KLASS_OBJECT, 39 KLASS_OBJECT,
38 KLASS_MAP, 40 KLASS_MAP,
39}; 41};
… …
44# include "eventinc.h" 46# include "eventinc.h"
45# undef def 47# undef def
46 NUM_EVENT_TYPES 48 NUM_EVENT_TYPES
47}; 49};
48 50
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
49#define ARG_INT(v) DT_INT , static_cast<int> (v) 52#define ARG_INT(v) DT_INT , static_cast<int> (v)
50#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
51#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
52#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
53#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), (l)
… …
59#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 62#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
60 63
61// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
62 65
63// 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)
64#define INVOKE(klass, event, ...) cfperl_invoke (EVENT_ ## klass ## _ ## event, ## __VA_ARGS__, DT_END) 67#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
65 68
69#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
66#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 70#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
67#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 71#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
68#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) 72#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
69#define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) 73#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
70 74
71//TODO should index into @result 75//TODO should index into @result
72#define RESULT(idx,type) cfperl_result_ ## type (idx) 76#define RESULT(idx,type) cfperl_result_ ## type (idx)
73#define RESULT_INT(idx) RESULT(idx, INT) 77#define RESULT_INT(idx) RESULT(idx, INT)
74 78
75bool cfperl_invoke (event_type event, ...); 79bool cfperl_invoke (event_type event, ...);
76int cfperl_result_INT (int idx); 80int cfperl_result_INT (int idx);
77 81
78struct extendable_base 82struct attachable_base
79{ 83{
80 void *self, *cb; // CF+ perl self and callback 84 SV *self;
85 AV *cb; // CF+ perl self and callback
81 const char *attach; // generic extension attachment information 86 shstr attach; // generic extension attachment information
82 87
83 void clear (); // called when free'ing objects 88 void clear (); // called when free'ing objects
84 void optimise (); // possibly save some memory by destroying unneeded data 89 void optimise (); // possibly save some memory by destroying unneeded data
85 void reattach (data_type type, void *self); // called after swapin 90 void instantiate (data_type type, void *obj);
86};
87 91
92 void attachable_init ()
93 {
94 self = 0;
95 cb = 0;
96 attach = 0;
97 }
98};
99
88// objects extendable from perl (or any other extension) should include or 100// objects attachable from perl (or any other extension) should include or
89// derive using the curiously recurring template pattern, to avoid 101// derive using the curiously recurring template pattern, to avoid
90// virtual method calls etc. 102// virtual method calls etc.
91template<class subclass> 103template<class subclass>
92struct extendable : extendable_base 104struct attachable : attachable_base
93{ 105{
94 void reattach () 106 void instantiate ()
95 { 107 {
96 if (attach) 108 if (attach)
97 extendable_base::reattach ( 109 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
98 static_cast<subclass *>(this)->get_dt (),
99 static_cast<subclass *>(this)
100 );
101 } 110 }
102}; 111};
103 112
104struct object_freezer 113struct object_freezer : dynbuf
105{ 114{
115 AV *av;
116
117 object_freezer ();
118 ~object_freezer ();
119
120 void put (attachable_base *ext);
121
122 template<class subclass>
123 void put (attachable<subclass> *obj)
124 {
125 put ((attachable_base *)obj);
126 }
127
128 //TODO//temporary
129 void put (const char *k, const char *v)
130 {
131 add (k);
132
133 //if (v)
134 add (' '); //TODO//cf compatibility always add space
135 if (v)
136 add (v);
137
138 add ('\n');
139 }
140
141 //TODO//temporary
142 void put (const char *k, int v)
143 {
144 add (k);
145 add (' ');
146 add (sint32 (v));
147 add ('\n');
148 }
149
150 void put (keyword k, const char *v)
151 {
152 int klen = keyword_len [k];
153 int vlen = v ? strlen (v) : 0;
154
155 char *p = (char *)alloc (klen + 1 + vlen + 1);
156
157 memcpy (p, keyword_str [k], klen); p += klen;
158 *p++ = ' '; //TODO//cf compatibility always add space
159 memcpy (p, v, vlen); p += vlen;
160 *p = '\n';
161 }
162
163 void put (keyword k, double v)
164 {
165 char buf [128];
166
167 snprintf (buf, 128, "%.7g", v);
168
169 put (k, (const char *)buf);
170 }
171
172 void put_(keyword k, sint64 v)
173 {
174 add (keyword_str [k], keyword_len [k]);
175 add (' ');
176 add (v);
177 add ('\n');
178 }
179
180 void put_(keyword k, sint32 v)
181 {
182 add (keyword_str [k], keyword_len [k]);
183 add (' ');
184 add (v);
185 add ('\n');
186 }
187
188 void put (keyword kbeg, keyword kend, const char *v)
189 {
190 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
191
192 if (v)
193 {
194 add (v);
195 add ('\n');
196 }
197
198 add (keyword_str [kend], keyword_len [kend]); add ('\n');
199 }
200
201 void put (keyword k, float v) { put (k, (double)v); }
202 void put (keyword k, signed char v) { put_(k, (sint32)v); }
203 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
204 void put (keyword k, signed short v) { put_(k, (sint32)v); }
205 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
206 void put (keyword k, signed int v) { put_(k, (sint32)v); }
207 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
208 void put (keyword k, signed long v) { put_(k, (sint64)v); }
209 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
210 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
211 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
212
213 template<typename T>
214 void put (keyword k, T *v)
215 {
216 put (k, v ? (const char *)v->name : 0);
217 }
218
106 const char *filename; 219 bool save (const char *filename);
107 void *av;
108 220
109 object_freezer (const char *filename) : filename (filename) { } 221 operator bool () { return !!av; }
110 void put (extendable_base *object);
111 void finish ();
112}; 222};
223
224// compatibility support, should be removed when no longer needed
225int fprintf (object_freezer &freezer, const char *format, ...);
226int fputs (const char *s, object_freezer &freezer);
113 227
114struct object_thawer 228struct object_thawer
115{ 229{
116 void *av; 230 SV *text; // text part
231 AV *av; // perl part
232 char *line; // current beginning of line
233 char *last_value;
117 234
235 operator bool () { return !!text; }
236
118 object_thawer (const char *filename); 237 object_thawer (const char *filename = 0);
119 void get (extendable_base *object); 238 ~object_thawer ();
120 void finish (); 239
240 void get (data_type type, void *obj, attachable_base *ext, int oid);
241
242 template<class subclass>
243 void get (attachable<subclass> *obj, int oid)
244 {
245 if (av)
246 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
247 }
248
249 keyword get_kv (); // also parse value for later use
250
251 const char *get_str () { return last_value; } // may be 0
252
253 void get (shstr &sh) const;
254 void get_ornull (shstr &sh) const { sh = last_value; }
255 void get_ml (keyword kend, shstr &sh);
256
257 sint32 get_sint32 () const;
258 sint64 get_sint64 () const;
259 double get_double () const;
260
261 void get (float &v) { v = get_double (); }
262 void get (double &v) { v = get_double (); }
263
264 void get (sint8 &i) { i = get_sint32 (); }
265 void get (uint8 &i) { i = get_sint32 (); }
266 void get (sint16 &i) { i = get_sint32 (); }
267 void get (uint16 &i) { i = get_sint32 (); }
268 void get (sint32 &i) { i = get_sint32 (); }
269
270 void get (uint32 &i) { i = get_sint64 (); }
271 void get (sint64 &i) { i = get_sint64 (); }
121}; 272};
273
274char *fgets (char *s, int n, object_thawer &thawer);
122 275
123#endif 276#endif
124 277

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