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
|
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* this file is used to test that we can use libesd with lazy dynamic linking */
#include <esd.h>
#include <dlfcn.h>
#include <stdio.h>
#define D(...) fprintf(stderr,__VA_ARGS__)
#define STRINGIFY(x) _STRINGIFY(x)
#define _STRINGIFY(x) #x
#define ESD_SYMBOLS \
ESD_FUNCTION(int,esd_play_stream,(esd_format_t,int,const char*,const char*)) \
ESD_FUNCTION(int,esd_record_stream,(esd_format_t,int,const char*,const char*)) \
ESD_FUNCTION(int,esd_open_sound,( const char *host )) \
ESD_FUNCTION(int,esd_close,(int)) \
/* define pointers to library functions we're going to use */
#define ESD_FUNCTION(ret,name,sig) \
static ret (*func_ ## name)sig;
ESD_SYMBOLS
#undef ESD_FUNCTION
static void* esd_lib;
int main( void )
{
int fd;
esd_lib = dlopen( "libesd.so", RTLD_NOW );
if (esd_lib == NULL)
esd_lib = dlopen( "libesd.so.0", RTLD_NOW );
if (esd_lib == NULL) {
D("could not find libesd on this system\n");
return 1;
}
#undef ESD_FUNCTION
#define ESD_FUNCTION(ret,name,sig) \
do { \
(func_ ##name) = dlsym( esd_lib, STRINGIFY(name) ); \
if ((func_##name) == NULL) { \
D("could not find %s in libesd\n", STRINGIFY(name)); \
return 1; \
} \
} while (0);
ESD_SYMBOLS
return 0;
}
|
