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
125
126
127
128
129
130
131
132
|
/**
* @file llappviewerlinux_api_dbus.cpp
* @brief dynamic DBus symbol-grabbing code
*
* $LicenseInfo:firstyear=2008&license=viewergpl$
*
* Copyright (c) 2008-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#if LL_DBUS_ENABLED
#include "linden_common.h"
extern "C" {
#include <dbus/dbus-glib.h>
#include "apr_pools.h"
#include "apr_dso.h"
}
#define DEBUGMSG(...) do { lldebugs << llformat(__VA_ARGS__) << llendl; } while(0)
#define INFOMSG(...) do { llinfos << llformat(__VA_ARGS__) << llendl; } while(0)
#define WARNMSG(...) do { llwarns << llformat(__VA_ARGS__) << llendl; } while(0)
#define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) RTN (*ll##DBUSSYM)(__VA_ARGS__) = NULL
#include "llappviewerlinux_api_dbus_syms_raw.inc"
#undef LL_DBUS_SYM
static bool sSymsGrabbed = false;
static apr_pool_t *sSymDBUSDSOMemoryPool = NULL;
static apr_dso_handle_t *sSymDBUSDSOHandleG = NULL;
bool grab_dbus_syms(std::string dbus_dso_name)
{
if (sSymsGrabbed)
{
// already have grabbed good syms
return TRUE;
}
bool sym_error = false;
bool rtn = false;
apr_status_t rv;
apr_dso_handle_t *sSymDBUSDSOHandle = NULL;
#define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) do{rv = apr_dso_sym((apr_dso_handle_sym_t*)&ll##DBUSSYM, sSymDBUSDSOHandle, #DBUSSYM); if (rv != APR_SUCCESS) {INFOMSG("Failed to grab symbol: %s", #DBUSSYM); if (REQUIRED) sym_error = true;} else DEBUGMSG("grabbed symbol: %s from %p", #DBUSSYM, (void*)ll##DBUSSYM);}while(0)
//attempt to load the shared library
apr_pool_create(&sSymDBUSDSOMemoryPool, NULL);
if ( APR_SUCCESS == (rv = apr_dso_load(&sSymDBUSDSOHandle,
dbus_dso_name.c_str(),
sSymDBUSDSOMemoryPool) ))
{
INFOMSG("Found DSO: %s", dbus_dso_name.c_str());
#include "llappviewerlinux_api_dbus_syms_raw.inc"
if ( sSymDBUSDSOHandle )
{
sSymDBUSDSOHandleG = sSymDBUSDSOHandle;
sSymDBUSDSOHandle = NULL;
}
rtn = !sym_error;
}
else
{
INFOMSG("Couldn't load DSO: %s", dbus_dso_name.c_str());
rtn = false; // failure
}
if (sym_error)
{
WARNMSG("Failed to find necessary symbols in DBUS-GLIB libraries.");
}
#undef LL_DBUS_SYM
sSymsGrabbed = rtn;
return rtn;
}
void ungrab_dbus_syms()
{
// should be safe to call regardless of whether we've
// actually grabbed syms.
if ( sSymDBUSDSOHandleG )
{
apr_dso_unload(sSymDBUSDSOHandleG);
sSymDBUSDSOHandleG = NULL;
}
if ( sSymDBUSDSOMemoryPool )
{
apr_pool_destroy(sSymDBUSDSOMemoryPool);
sSymDBUSDSOMemoryPool = NULL;
}
// NULL-out all of the symbols we'd grabbed
#define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) do{ll##DBUSSYM = NULL;}while(0)
#include "llappviewerlinux_api_dbus_syms_raw.inc"
#undef LL_DBUS_SYM
sSymsGrabbed = false;
}
#endif // LL_DBUS_ENABLED
|
