ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/include/cfperl.h
(Generate patch)

Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.2 by root, Thu Aug 24 17:29:30 2006 UTC vs.
Revision 1.17 by root, Thu Aug 31 06:23:19 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
7#include <cstdio>
8
9using namespace std;
10
11#include <EXTERN.h>
12#include <perl.h>
13
14#include "keyword.h"
15
16// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
17#undef localtime
18#undef srand48
19#undef drand48
20#undef srandom
21#undef readdir
22#undef getprotobyname
23#undef gethostbyname
24#undef ctime
25#undef strerror
26
27// perl bug #40256: perl does overwrite those with reentrant versions
28// but does not initialise their state structures.
29#undef random
30#undef crypt
31
32struct pl;
33struct object;
34struct mapstruct;
35
36void cfperl_init ();
37void cfperl_boot ();
38void cfperl_main ();
39
7// could have used templates, but a more traditional C api 40// could have used templates, but a more traditional C api
8// uses more explicit typing which is ok for this purpose. 41// uses more explicit typing which is ok for this purpose.
9enum data_type { 42enum data_type
43{
10 DT_END, // no further arguments 44 DT_END, // no further arguments
45 DT_AV, // perl-only av that needs to be flattened out
11 DT_INT, 46 DT_INT,
12 DT_LONG, 47 DT_INT64,
13 DT_DOUBLE, 48 DT_DOUBLE,
14 DT_STRING, // 0-terminated string 49 DT_STRING, // 0-terminated string
15 DT_DATA, // string + length 50 DT_DATA, // string + length
16 DT_OBJECT, 51 DT_OBJECT,
17 DT_MAP, 52 DT_MAP,
18 DT_PLAYER, 53 DT_PLAYER,
19 DT_ARCH, 54 DT_ARCH,
20 DT_PARTY, 55 DT_PARTY,
21 DT_REGION, 56 DT_REGION,
22};
23 57
58 NUM_DATA_TYPES
59};
60
61enum event_klass
62{
63 KLASS_NONE,
64 KLASS_GLOBAL,
65 KLASS_PLAYER,
66 KLASS_OBJECT,
67 KLASS_MAP,
68};
69
24enum event_type { 70enum event_type
25# define def(name) EV_ ## name, 71{
72# define def(klass,name) EVENT_ ## klass ## _ ## name,
26# include "eventinc.h" 73# include "eventinc.h"
27# undef def 74# undef def
75 NUM_EVENT_TYPES
28}; 76};
29 77
78#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
30#define DT_INT(v) DT_INT , (int)(v) 79#define ARG_INT(v) DT_INT , static_cast<int> (v)
31#define DT_LONG(v) DT_LONG , (long)(v) 80#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
32#define DT_DOUBLE(v) DT_DOUBLE, (double)(v) 81#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
33#define DT_STRING(v) DT_STRING, (char *)(v) 82#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
34#define DT_DATA(s,l) DT_DATA , (void *)(s), (l) 83#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l)
35#define DT_OBJECT(o) DT_OBJECT, (object *)(o) 84#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o)
36#define DT_MAP(o) DT_MAP , (map *)(o) 85#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o)
37#define DT_PLAYER(o) DT_PLAYER, (player *)(o) 86#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o)
38#define DT_ARCH(o) DT_ARCH , (archetype *)(o) 87#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o)
39#define DT_PARTY(o) DT_PARTY , (party *)(o) 88#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o)
40#define DT_REGION(o) DT_REGION, (region *)(o) 89#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
41 90
91// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
92
93// all these return true when the normal event processing should be skipped (if any)
42#define INVOKE(event, ...) cfperl_invoke ("cf::invoke" , EV_ # event, __VA_ARGS__, DT_END) 94#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
43// should be called on all objects, should be optimised
44#define INVOKE_ON(object,event, ...) cfperl_invoke ("cf::invoke_on" , EV_ # event, DT_OBJECT(object), __VA_ARGS__, DT_END)
45 95
96#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
97#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
98#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
99#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
100#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
101
102//TODO should index into @result
103#define RESULT(idx,type) cfperl_result_ ## type (idx)
104#define RESULT_INT(idx) RESULT(idx, INT)
105
46int cfperl_invoke (const char *klass, event_type event, ...); 106bool cfperl_invoke (event_type event, ...);
107int cfperl_result_INT (int idx);
47 108
48void cfperl_main (); 109struct attachable_base
110{
111 SV *self;
112 AV *cb; // CF+ perl self and callback
113 const char *attach; // generic extension attachment information
114
115 void clear (); // called when free'ing objects
116 void optimise (); // possibly save some memory by destroying unneeded data
117 void instantiate (data_type type, void *obj);
118
119 void attachable_init ()
120 {
121 self = 0;
122 cb = 0;
123 attach = 0;
124 }
125};
126
127// objects attachable from perl (or any other extension) should include or
128// derive using the curiously recurring template pattern, to avoid
129// virtual method calls etc.
130template<class subclass>
131struct attachable : attachable_base
132{
133 static data_type get_dt ()
134 {
135 return subclass::get_dt ();
136 }
137
138 void instantiate ()
139 {
140 if (attach)
141 attachable_base::instantiate (get_dt (), static_cast<subclass *>(this));
142 }
143};
144
145struct object_freezer
146{
147 AV *av;
148 SV *text;
149
150 object_freezer ();
151 ~object_freezer ();
152
153 void put (attachable_base *ext);
154
155 template<class subclass>
156 void put (attachable<subclass> *obj)
157 {
158 put ((attachable_base *)obj);
159 }
160
161 bool save (const char *filename);
162
163 operator bool () { return !!av; }
164};
165
166// compatibility support, should be removed when no longer needed
167int fprintf (object_freezer &freezer, const char *format, ...);
168int fputs (const char *s, object_freezer &freezer);
169
170// a single key-value line from a file
171struct token {
172 keyword k;
173 const char *v;
174
175 token (keyword k, const char *v = 0) : k(k), v(v) { }
176};
177
178struct object_thawer
179{
180 AV *av;
181 FILE *fp;
182 char line[1024];
183
184 object_thawer (const char *filename = 0);
185 ~object_thawer ();
186
187 void get (data_type type, void *obj, attachable_base *ext, int oid);
188
189 template<class subclass>
190 void get (attachable<subclass> *obj, int oid)
191 {
192 if (av)
193 get (subclass::get_dt (), (subclass *)obj, obj, oid);
194 }
195
196 token get_token ();
197
198 operator FILE *() { return fp; }
199};
49 200
50#endif 201#endif
202

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines