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/cvs/deliantra/server/include/cfperl.h
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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.8 by root, Sun Aug 27 16:15:12 2006 UTC vs.
Revision 1.18 by root, Thu Aug 31 09:19:34 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
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
10 31
11void cfperl_init (); 32void cfperl_init ();
33void cfperl_boot ();
12void cfperl_main (); 34void 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_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 NUM_DATA_TYPES
33};
34 35
35enum event_klass 36enum event_klass
36{ 37{
38 KLASS_NONE,
37 KLASS_GLOBAL, 39 KLASS_GLOBAL,
38 KLASS_PLAYER, 40 KLASS_PLAYER,
39 KLASS_OBJECT, 41 KLASS_OBJECT,
40 KLASS_MAP, 42 KLASS_MAP,
41}; 43};
… …
46# include "eventinc.h" 48# include "eventinc.h"
47# undef def 49# undef def
48 NUM_EVENT_TYPES 50 NUM_EVENT_TYPES
49}; 51};
50 52
53#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
51#define ARG_INT(v) DT_INT , static_cast<int> (v) 54#define ARG_INT(v) DT_INT , static_cast<int> (v)
52#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 55#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
53#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 56#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
54#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 57#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
55#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) 58#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l)
… …
61#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 64#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
62 65
63// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 66// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
64 67
65// all these return true when the normal event processing should be skipped (if any) 68// all these return true when the normal event processing should be skipped (if any)
66#define INVOKE(klass, event, ...) cfperl_invoke (EVENT_ ## klass ## _ ## event, ## __VA_ARGS__, DT_END) 69#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
67 70
71#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
68#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 72#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
69#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 73#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
70#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) 74#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
71#define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) 75#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
72 76
73//TODO should index into @result 77//TODO should index into @result
74#define RESULT(idx,type) cfperl_result_ ## type (idx) 78#define RESULT(idx,type) cfperl_result_ ## type (idx)
75#define RESULT_INT(idx) RESULT(idx, INT) 79#define RESULT_INT(idx) RESULT(idx, INT)
76 80
77bool cfperl_invoke (event_type event, ...); 81bool cfperl_invoke (event_type event, ...);
78int cfperl_result_INT (int idx); 82int cfperl_result_INT (int idx);
79 83
80struct extendable_base 84struct attachable_base
81{ 85{
82 void *self, *cb; // CF+ perl self and callback 86 SV *self;
87 AV *cb; // CF+ perl self and callback
83 const char *attach; // generic extension attachment information 88 const char *attach; // generic extension attachment information
84 89
85 void clear (); // called when free'ing objects 90 void clear (); // called when free'ing objects
86 void optimise (); // possibly save some memory by destroying unneeded data 91 void optimise (); // possibly save some memory by destroying unneeded data
92 void instantiate (data_type type, void *obj);
87 93
88 void extendable_init () 94 void attachable_init ()
89 { 95 {
90 self = cb = 0; 96 self = 0;
97 cb = 0;
91 attach = 0; 98 attach = 0;
92 } 99 }
93}; 100};
94 101
95// objects extendable from perl (or any other extension) should include or 102// objects attachable from perl (or any other extension) should include or
96// derive using the curiously recurring template pattern, to avoid 103// derive using the curiously recurring template pattern, to avoid
97// virtual method calls etc. 104// virtual method calls etc.
98template<class subclass> 105template<class subclass>
99struct extendable : extendable_base 106struct attachable : attachable_base
100{ 107{
101 static data_type get_dt () 108 void instantiate ()
102 { 109 {
103 subclass::get_dt (); 110 if (attach)
111 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
104 } 112 }
105}; 113};
106 114
107struct object_freezer 115struct object_freezer
108{ 116{
109 const char *filename; 117 AV *av;
110 void *av; 118 SV *text;
111 int idx;
112 119
113 object_freezer (const char *filename); 120 object_freezer ();
114 ~object_freezer (); 121 ~object_freezer ();
115 122
116 void put (extendable_base *ext); 123 void put (attachable_base *ext);
117 124
118 template<class subclass> 125 template<class subclass>
119 void put (extendable<subclass> *obj) 126 void put (attachable<subclass> *obj)
120 { 127 {
121 put ((extendable_base *)obj); 128 put ((attachable_base *)obj);
122 } 129 }
123 130
124 void finish (); 131 void put (keyword k);
132 void put (const char *v);
133 void put (int v);
134
135 template<typename value>
136 void put (keyword k, value v)
137 {
138 put (k);
139 put (v);
140 }
141
142 bool save (const char *filename);
143
144 operator bool () { return !!av; }
145};
146
147// compatibility support, should be removed when no longer needed
148int fprintf (object_freezer &freezer, const char *format, ...);
149int fputs (const char *s, object_freezer &freezer);
150
151// a single key-value line from a file
152struct token {
153 keyword k;
154 const char *v;
155
156 token (keyword k, const char *v = 0) : k(k), v(v) { }
125}; 157};
126 158
127struct object_thawer 159struct object_thawer
128{ 160{
129 void *av; 161 AV *av;
130 int idx; 162 FILE *fp;
163 char line[1024];
131 164
132 object_thawer (const char *filename = 0); 165 object_thawer (const char *filename = 0);
133 ~object_thawer (); 166 ~object_thawer ();
134 167
135 void get (data_type type, void *obj, extendable_base *ext); 168 void get (data_type type, void *obj, attachable_base *ext, int oid);
136 169
137 template<class subclass> 170 template<class subclass>
138 void get (extendable<subclass> *obj) 171 void get (attachable<subclass> *obj, int oid)
139 { 172 {
140 if (av) 173 if (av)
141 get (subclass::get_dt (), (subclass *)obj, obj); 174 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
142 } 175 }
143 176
144 void finish (); 177 token get_token ();
178
179 operator FILE *() { return fp; }
145}; 180};
146 181
147#endif 182#endif
148 183

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