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/cvs/deliantra/server/include/cfperl.h
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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.1 by root, Thu Aug 24 13:13:49 2006 UTC vs.
Revision 1.18 by root, Thu Aug 31 09:19:34 2006 UTC

1// 1//
2// cfperl.h perl interface 2// cfperl.h perl interface
3// 3//
4#ifndef CFPERL_H__
5#define CFPERL_H__
4 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
32void cfperl_init ();
33void cfperl_boot ();
5void cfperl_main (); 34void cfperl_main ();
35
36enum event_klass
37{
38 KLASS_NONE,
39 KLASS_GLOBAL,
40 KLASS_PLAYER,
41 KLASS_OBJECT,
42 KLASS_MAP,
43};
44
45enum event_type
46{
47# define def(klass,name) EVENT_ ## klass ## _ ## name,
48# include "eventinc.h"
49# undef def
50 NUM_EVENT_TYPES
51};
52
53#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
54#define ARG_INT(v) DT_INT , static_cast<int> (v)
55#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
56#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
57#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
58#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l)
59#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o)
60#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o)
61#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o)
62#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o)
63#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o)
64#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
65
66// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
67
68// all these return true when the normal event processing should be skipped (if any)
69#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
70
71#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
72#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
73#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
74#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
75#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
76
77//TODO should index into @result
78#define RESULT(idx,type) cfperl_result_ ## type (idx)
79#define RESULT_INT(idx) RESULT(idx, INT)
80
81bool cfperl_invoke (event_type event, ...);
82int cfperl_result_INT (int idx);
83
84struct attachable_base
85{
86 SV *self;
87 AV *cb; // CF+ perl self and callback
88 const char *attach; // generic extension attachment information
89
90 void clear (); // called when free'ing objects
91 void optimise (); // possibly save some memory by destroying unneeded data
92 void instantiate (data_type type, void *obj);
93
94 void attachable_init ()
95 {
96 self = 0;
97 cb = 0;
98 attach = 0;
99 }
100};
101
102// objects attachable from perl (or any other extension) should include or
103// derive using the curiously recurring template pattern, to avoid
104// virtual method calls etc.
105template<class subclass>
106struct attachable : attachable_base
107{
108 void instantiate ()
109 {
110 if (attach)
111 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
112 }
113};
114
115struct object_freezer
116{
117 AV *av;
118 SV *text;
119
120 object_freezer ();
121 ~object_freezer ();
122
123 void put (attachable_base *ext);
124
125 template<class subclass>
126 void put (attachable<subclass> *obj)
127 {
128 put ((attachable_base *)obj);
129 }
130
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) { }
157};
158
159struct object_thawer
160{
161 AV *av;
162 FILE *fp;
163 char line[1024];
164
165 object_thawer (const char *filename = 0);
166 ~object_thawer ();
167
168 void get (data_type type, void *obj, attachable_base *ext, int oid);
169
170 template<class subclass>
171 void get (attachable<subclass> *obj, int oid)
172 {
173 if (av)
174 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
175 }
176
177 token get_token ();
178
179 operator FILE *() { return fp; }
180};
181
182#endif
183

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