1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/* -*-Mode: C;-*-
* $Id: library.c 1.1 Tue, 06 Apr 1999 23:40:43 -0700 jmacd $
*
* Copyright (C) 1998, 1999, Josh MacDonald.
* All Rights Reserved.
*
* Author: Josh MacDonald <jmacd@CS.Berkeley.EDU>
*/
#include "edsio.h"
#include <gmodule.h>
typedef struct _Library Library;
struct _Library {
const char* name;
const char* libname;
gint index;
gboolean loaded;
};
static Library known_libraries[] = {
{ "xd", "xdelta", 3 },
{ "edsio", "edsio", 6 },
};
static GHashTable* loaded_libraries;
static void
edsio_library_init ()
{
if (! loaded_libraries)
{
gint i;
gint n = sizeof (known_libraries) / sizeof (Library);;
loaded_libraries = g_hash_table_new (g_int_hash, g_int_equal);
for (i = 0; i < n; i += 1)
{
Library* lib = known_libraries + i;
g_hash_table_insert (loaded_libraries, & lib->index, lib);
}
}
}
void
edsio_library_register (guint32 number, const char* name)
{
Library* lib;
edsio_library_init ();
lib = g_hash_table_lookup (loaded_libraries, & number);
if (lib)
{
lib->loaded = TRUE;
return;
}
lib = g_new0 (Library, 1);
lib->index = number;
lib->name = name;
lib->loaded = TRUE;
g_hash_table_insert (loaded_libraries, & lib->index, lib);
}
gboolean
edsio_library_check (guint32 number)
{
Library* lib;
edsio_library_init ();
lib = g_hash_table_lookup (loaded_libraries, & number);
if (lib)
{
lib->loaded = TRUE;
return TRUE;
}
#if 0
if (lib->libname && g_module_supported ())
{
GModule *module;
GString *module_name = g_string_new (NULL);
GString *symbol_name = g_string_new (NULL);
gboolean (* init) (void);
if (! (module = g_module_open (module_name->str, 0)))
{
edsio_generate_stringstring_event (EC_EdsioGModuleError, module_name->str, g_module_error ());
return FALSE;
}
if (! g_module_symbol (module,
symbol_name->str,
(void**) & init))
{
edsio_generate_stringstring_event (EC_EdsioGModuleError, g_module_name (module), g_module_error ());
return FALSE;
}
g_module_make_resident (module);
g_module_close (module);
lib->loaded = TRUE;
return (* init) ();
}
#endif
edsio_generate_int_event (EC_EdsioUnregisteredLibrary, number);
return FALSE;
}
|
