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/cvs/deliantra/server/include/cfperl.h
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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.2 by root, Thu Aug 24 17:29:30 2006 UTC vs.
Revision 1.7 by root, Sat Aug 26 23:36:32 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;
8struct object;
9struct mapstruct;
10
11void cfperl_init ();
12void cfperl_main ();
13
7// could have used templates, but a more traditional C api 14// could have used templates, but a more traditional C api
8// uses more explicit typing which is ok for this purpose. 15// uses more explicit typing which is ok for this purpose.
9enum data_type { 16enum data_type
17{
10 DT_END, // no further arguments 18 DT_END, // no further arguments
11 DT_INT, 19 DT_INT,
12 DT_LONG, 20 DT_INT64,
13 DT_DOUBLE, 21 DT_DOUBLE,
14 DT_STRING, // 0-terminated string 22 DT_STRING, // 0-terminated string
15 DT_DATA, // string + length 23 DT_DATA, // string + length
16 DT_OBJECT, 24 DT_OBJECT,
17 DT_MAP, 25 DT_MAP,
18 DT_PLAYER, 26 DT_PLAYER,
19 DT_ARCH, 27 DT_ARCH,
20 DT_PARTY, 28 DT_PARTY,
21 DT_REGION, 29 DT_REGION,
30 DT_AV, // av that needs to be flattened out
22}; 31};
23 32
33enum event_klass
34{
35 KLASS_GLOBAL,
36 KLASS_PLAYER,
37 KLASS_OBJECT,
38 KLASS_MAP,
39};
40
24enum event_type { 41enum event_type
25# define def(name) EV_ ## name, 42{
43# define def(klass,name) EVENT_ ## klass ## _ ## name,
26# include "eventinc.h" 44# include "eventinc.h"
27# undef def 45# undef def
46 NUM_EVENT_TYPES
28}; 47};
29 48
30#define DT_INT(v) DT_INT , (int)(v) 49#define ARG_INT(v) DT_INT , static_cast<int> (v)
31#define DT_LONG(v) DT_LONG , (long)(v) 50#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
32#define DT_DOUBLE(v) DT_DOUBLE, (double)(v) 51#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
33#define DT_STRING(v) DT_STRING, (char *)(v) 52#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
34#define DT_DATA(s,l) DT_DATA , (void *)(s), (l) 53#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l)
35#define DT_OBJECT(o) DT_OBJECT, (object *)(o) 54#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o)
36#define DT_MAP(o) DT_MAP , (map *)(o) 55#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o)
37#define DT_PLAYER(o) DT_PLAYER, (player *)(o) 56#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o)
38#define DT_ARCH(o) DT_ARCH , (archetype *)(o) 57#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o)
39#define DT_PARTY(o) DT_PARTY , (party *)(o) 58#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o)
40#define DT_REGION(o) DT_REGION, (region *)(o) 59#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
41 60
42#define INVOKE(event, ...) cfperl_invoke ("cf::invoke" , EV_ # event, __VA_ARGS__, DT_END) 61// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
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 62
46int cfperl_invoke (const char *klass, event_type event, ...); 63// 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)
47 65
48void cfperl_main (); 66#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__)
67#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__)
68#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__)
69#define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__)
70
71//TODO should index into @result
72#define RESULT(idx,type) cfperl_result_ ## type (idx)
73#define RESULT_INT(idx) RESULT(idx, INT)
74
75bool cfperl_invoke (event_type event, ...);
76int cfperl_result_INT (int idx);
77
78struct extendable_base
79{
80 void *self, *cb; // CF+ perl self and callback
81 const char *attach; // generic extension attachment information
82
83 void clear (); // called when free'ing objects
84 void optimise (); // possibly save some memory by destroying unneeded data
85 void reattach (data_type type, void *self); // called after swapin
86};
87
88// objects extendable from perl (or any other extension) should include or
89// derive using the curiously recurring template pattern, to avoid
90// virtual method calls etc.
91template<class subclass>
92struct extendable : extendable_base
93{
94 void reattach ()
95 {
96 if (attach)
97 extendable_base::reattach (
98 static_cast<subclass *>(this)->get_dt (),
99 static_cast<subclass *>(this)
100 );
101 }
102};
103
104struct object_freezer
105{
106 const char *filename;
107 void *av;
108
109 object_freezer (const char *filename) : filename (filename) { }
110 void put (extendable_base *object);
111 void finish ();
112};
113
114struct object_thawer
115{
116 void *av;
117
118 object_thawer (const char *filename);
119 void get (extendable_base *object);
120 void finish ();
121};
49 122
50#endif 123#endif
124

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