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
122
123
124
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-provider.c : provider framework */
/*
*
* Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@aful.org> .
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/*
A provider can be added "by hand" or by loading a module.
Adding providers with modules.
------------------------------
The modules are shared libraries which must contain the
function
CamelProvider *camel_provider_module_init ();
returning the provider object defined in the module
*/
/* FIXME: Shouldn't we add a version number to providers ? */
#include "config.h"
#include "camel-provider.h"
#include "camel-log.h"
static GList *_provider_list = NULL;
static gchar *_last_error;
static gint
_provider_name_cmp (gconstpointer a, gconstpointer b)
{
CamelProvider *provider_a = CAMEL_PROVIDER (a);
CamelProvider *provider_b = CAMEL_PROVIDER (b);
return strcmp ( provider_a->name, provider_b->name);
}
void
camel_provider_register (CamelProvider *provider)
{
GList *old_provider_node = NULL;
g_assert (provider);
if (_provider_list)
old_provider_node = g_list_find_custom (_provider_list, provider, _provider_name_cmp);
if (old_provider_node != NULL) {
// camel_provider_unref (CAMEL_PROVIDER (old_provider_node->data));
old_provider_node->data = provider;
} else {
_provider_list = g_list_append (_provider_list, provider);
}
// camel_provider_ref (provider);
}
const CamelProvider *
camel_provider_register_as_module (const gchar *module_path)
{
CamelProvider *new_provider = NULL;
GModule *new_module = NULL;
CamelProvider * (*camel_provider_module_init) ();
gboolean has_module_init;
CAMEL_LOG_FULL_DEBUG ("Entering CamelProvider::register_as_module\n");
g_return_val_if_fail (module_path, NULL);
if (!g_module_supported ()) {
CAMEL_LOG_WARNING ("CamelProvider::register_as_module module loading not supported on this system\n");
CAMEL_LOG_FULL_DEBUG ("Leaving CamelProvider::register_as_module\n");
return NULL;
}
new_module = g_module_open (module_path, 0);
if (!new_module) {
CAMEL_LOG_WARNING ("CamelProvider::register_as_module Unable to load module %s\n", module_path);
CAMEL_LOG_FULL_DEBUG ("Leaving CamelProvider::register_as_module\n");
return NULL;
}
has_module_init = g_module_symbol (new_module, "camel_provider_module_init", (gpointer *)&camel_provider_module_init);
if (!has_module_init){
CAMEL_LOG_WARNING ("CamelProvider::register_as_module loading of module %s failed,\n"
"\t Symbol camel_provider_module_init not defined in it\n", module_path);
CAMEL_LOG_FULL_DEBUG ("Leaving CamelProvider::register_as_module\n");
return NULL;
}
new_provider = camel_provider_module_init();
new_provider->gmodule = new_module;
CAMEL_LOG_FULL_DEBUG ("Leaving CamelProvider::register_as_module\n");
return new_provider;
}
|
