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/cvs/deliantra/server/include/cfperl.h
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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 1.14 by root, Wed Aug 30 06:06:27 2006 UTC

… …
14// could have used templates, but a more traditional C api 14// could have used templates, but a more traditional C api
15// uses more explicit typing which is ok for this purpose. 15// uses more explicit typing which is ok for this purpose.
16enum data_type 16enum data_type
17{ 17{
18 DT_END, // no further arguments 18 DT_END, // no further arguments
19 DT_AV, // perl-only av that needs to be flattened out
19 DT_INT, 20 DT_INT,
20 DT_INT64, 21 DT_INT64,
21 DT_DOUBLE, 22 DT_DOUBLE,
22 DT_STRING, // 0-terminated string 23 DT_STRING, // 0-terminated string
23 DT_DATA, // string + length 24 DT_DATA, // string + length
… …
25 DT_MAP, 26 DT_MAP,
26 DT_PLAYER, 27 DT_PLAYER,
27 DT_ARCH, 28 DT_ARCH,
28 DT_PARTY, 29 DT_PARTY,
29 DT_REGION, 30 DT_REGION,
30 DT_AV, // av that needs to be flattened out 31
32 NUM_DATA_TYPES
31}; 33};
32 34
33enum event_klass 35enum event_klass
34{ 36{
37 KLASS_NONE,
35 KLASS_GLOBAL, 38 KLASS_GLOBAL,
36 KLASS_PLAYER, 39 KLASS_PLAYER,
37 KLASS_OBJECT, 40 KLASS_OBJECT,
38 KLASS_MAP, 41 KLASS_MAP,
39}; 42};
… …
44# include "eventinc.h" 47# include "eventinc.h"
45# undef def 48# undef def
46 NUM_EVENT_TYPES 49 NUM_EVENT_TYPES
47}; 50};
48 51
52#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
49#define ARG_INT(v) DT_INT , static_cast<int> (v) 53#define ARG_INT(v) DT_INT , static_cast<int> (v)
50#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 54#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
51#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 55#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
52#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 56#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) 57#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) 63#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
60 64
61// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 65// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
62 66
63// all these return true when the normal event processing should be skipped (if any) 67// 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) 68#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
65 69
70#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
66#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 71#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
67#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 72#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__) 73#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__) 74#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
70 75
71//TODO should index into @result 76//TODO should index into @result
72#define RESULT(idx,type) cfperl_result_ ## type (idx) 77#define RESULT(idx,type) cfperl_result_ ## type (idx)
73#define RESULT_INT(idx) RESULT(idx, INT) 78#define RESULT_INT(idx) RESULT(idx, INT)
74 79
75bool cfperl_invoke (event_type event, ...); 80bool cfperl_invoke (event_type event, ...);
76int cfperl_result_INT (int idx); 81int cfperl_result_INT (int idx);
77 82
78struct extendable_base 83struct attachable_base
79{ 84{
80 void *self, *cb; // CF+ perl self and callback 85 void *self, *cb; // CF+ perl self and callback
81 const char *attach; // generic extension attachment information 86 const char *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);
91
92 void attachable_init ()
93 {
94 self = cb = 0;
95 attach = 0;
96 }
86}; 97};
87 98
88// objects extendable from perl (or any other extension) should include or 99// objects attachable from perl (or any other extension) should include or
89// derive using the curiously recurring template pattern, to avoid 100// derive using the curiously recurring template pattern, to avoid
90// virtual method calls etc. 101// virtual method calls etc.
91template<class subclass> 102template<class subclass>
92struct extendable : extendable_base 103struct attachable : attachable_base
93{ 104{
94 void reattach () 105 static data_type get_dt ()
106 {
107 return subclass::get_dt ();
108 }
109
110 void instantiate ()
95 { 111 {
96 if (attach) 112 if (attach)
97 extendable_base::reattach ( 113 attachable_base::instantiate (get_dt (), static_cast<subclass *>(this));
98 static_cast<subclass *>(this)->get_dt (),
99 static_cast<subclass *>(this)
100 );
101 } 114 }
102}; 115};
103 116
104struct object_freezer 117struct object_freezethaw
105{ 118{
106 const char *filename;
107 void *av; 119 void *av;
120 FILE *fp;
108 121
109 object_freezer (const char *filename) : filename (filename) { } 122 operator FILE *() { return fp; }
110 void put (extendable_base *object);
111 void finish ();
112}; 123};
113 124
114struct object_thawer 125struct object_freezer : object_freezethaw
115{ 126{
116 void *av; 127 void *filename;
117 128
129 object_freezer (const char *filename);
130 ~object_freezer ();
131
132 void put (attachable_base *ext);
133
134 template<class subclass>
135 void put (attachable<subclass> *obj)
136 {
137 put ((attachable_base *)obj);
138 }
139};
140
141struct object_thawer : object_freezethaw
142{
118 object_thawer (const char *filename); 143 object_thawer (const char *filename = 0);
119 void get (extendable_base *object); 144 ~object_thawer ();
120 void finish (); 145
146 void get (data_type type, void *obj, attachable_base *ext, int oid);
147
148 template<class subclass>
149 void get (attachable<subclass> *obj, int oid)
150 {
151 if (av)
152 get (subclass::get_dt (), (subclass *)obj, obj, oid);
153 }
121}; 154};
122 155
123#endif 156#endif
124 157

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