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 1.3 by root, Fri Aug 25 13:24:50 2006 UTC vs.
Revision 1.16 by root, Wed Aug 30 16:30:37 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// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
15#undef localtime
16#undef srand48
17#undef drand48
18#undef srandom
19#undef readdir
20#undef getprotobyname
21#undef gethostbyname
22#undef ctime
23#undef strerror
24
25// perl bug #40256: perl does overwrite those with reentrant versions
26// but does not initialise their state structures.
27#undef random
28#undef crypt
29
30struct pl;
31struct object;
32struct mapstruct;
33
34void cfperl_init ();
35void cfperl_boot ();
36void cfperl_main ();
37
7// could have used templates, but a more traditional C api 38// could have used templates, but a more traditional C api
8// uses more explicit typing which is ok for this purpose. 39// uses more explicit typing which is ok for this purpose.
9enum data_type { 40enum data_type
41{
10 DT_END, // no further arguments 42 DT_END, // no further arguments
43 DT_AV, // perl-only av that needs to be flattened out
11 DT_INT, 44 DT_INT,
12 DT_LONG, 45 DT_INT64,
13 DT_DOUBLE, 46 DT_DOUBLE,
14 DT_STRING, // 0-terminated string 47 DT_STRING, // 0-terminated string
15 DT_DATA, // string + length 48 DT_DATA, // string + length
16 DT_OBJECT, 49 DT_OBJECT,
17 DT_MAP, 50 DT_MAP,
18 DT_PLAYER, 51 DT_PLAYER,
19 DT_ARCH, 52 DT_ARCH,
20 DT_PARTY, 53 DT_PARTY,
21 DT_REGION, 54 DT_REGION,
55
56 NUM_DATA_TYPES
22}; 57};
23 58
24enum event_klass { 59enum event_klass
60{
61 KLASS_NONE,
25 KLASS_GLOBAL, 62 KLASS_GLOBAL,
26 KLASS_PLAYER, 63 KLASS_PLAYER,
27 KLASS_OBJECT, 64 KLASS_OBJECT,
28 KLASS_MAP, 65 KLASS_MAP,
29}; 66};
30 67
31enum event_type { 68enum event_type
69{
32# define def(klass,name) EV_ ## klass ## name, 70# define def(klass,name) EVENT_ ## klass ## _ ## name,
33# include "eventinc.h" 71# include "eventinc.h"
34# undef def 72# undef def
73 NUM_EVENT_TYPES
35}; 74};
36 75
76#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
37#define ARG_INT(v) DT_INT , static_cast<int> (v) 77#define ARG_INT(v) DT_INT , static_cast<int> (v)
38#define ARG_LONG(v) DT_LONG , static_cast<long> (v) 78#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
39#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 79#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
40#define ARG_STRING(v) DT_STRING, static_cast<char *> (v) 80#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
41#define ARG_DATA(s,l) DT_DATA , static_cast<void *> (s), (l) 81#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l)
42#define ARG_OBJECT(o) DT_OBJECT, static_cast<struct object *> (o) 82#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o)
43#define ARG_MAP(o) DT_MAP , static_cast<struct mapstruct *> (o) 83#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o)
44#define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *> (o) 84#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o)
45#define ARG_ARCH(o) DT_ARCH , static_cast<struct archetype *> (o) 85#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o)
46#define ARG_PARTY(o) DT_PARTY , static_cast<struct party *> (o) 86#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o)
47#define ARG_REGION(o) DT_REGION, static_cast<struct region *> (o) 87#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o)
48 88
49// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 89// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
50 90
91// all these return true when the normal event processing should be skipped (if any)
51#define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## event, ## __VA_ARGS__, DT_END) 92#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
52 93
94#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
53#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 95#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
54#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 96#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__)
55#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) 97#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__)
56#define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) 98#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__)
57 99
58int cfperl_invoke (event_type event, ...); 100//TODO should index into @result
59void cfperl_free_ob (object *op); 101#define RESULT(idx,type) cfperl_result_ ## type (idx)
102#define RESULT_INT(idx) RESULT(idx, INT)
60 103
61void cfperl_init (); 104bool cfperl_invoke (event_type event, ...);
62void cfperl_main (); 105int cfperl_result_INT (int idx);
106
107struct attachable_base
108{
109 struct sv *self;
110 struct av *cb; // CF+ perl self and callback
111 const char *attach; // generic extension attachment information
112
113 void clear (); // called when free'ing objects
114 void optimise (); // possibly save some memory by destroying unneeded data
115 void instantiate (data_type type, void *obj);
116
117 void attachable_init ()
118 {
119 self = 0;
120 cb = 0;
121 attach = 0;
122 }
123};
124
125// objects attachable from perl (or any other extension) should include or
126// derive using the curiously recurring template pattern, to avoid
127// virtual method calls etc.
128template<class subclass>
129struct attachable : attachable_base
130{
131 static data_type get_dt ()
132 {
133 return subclass::get_dt ();
134 }
135
136 void instantiate ()
137 {
138 if (attach)
139 attachable_base::instantiate (get_dt (), static_cast<subclass *>(this));
140 }
141};
142
143struct object_freezethaw
144{
145 struct av *av;
146};
147
148struct object_freezer : object_freezethaw
149{
150 struct sv *text;
151 void *filename;
152
153 object_freezer (const char *filename);
154 ~object_freezer ();
155
156 void put (attachable_base *ext);
157
158 template<class subclass>
159 void put (attachable<subclass> *obj)
160 {
161 put ((attachable_base *)obj);
162 }
163
164 operator bool () { return !!av; }
165};
166
167struct object_thawer : object_freezethaw
168{
169 FILE *fp;
170
171 object_thawer (const char *filename = 0);
172 ~object_thawer ();
173
174 void get (data_type type, void *obj, attachable_base *ext, int oid);
175
176 template<class subclass>
177 void get (attachable<subclass> *obj, int oid)
178 {
179 if (av)
180 get (subclass::get_dt (), (subclass *)obj, obj, oid);
181 }
182
183 operator FILE *() { return fp; }
184};
185
186// compatibility support, should be removed when no longer needed
187int fprintf (object_freezer &freezer, const char *format, ...);
188int fputs (const char *s, object_freezer &freezer);
63 189
64#endif 190#endif
65 191

Diff Legend

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