1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16/* this file is used to test that we can use libesd with lazy dynamic linking */
17
18#include <esd.h>
19#include <dlfcn.h>
20#include <stdio.h>
21
22#define  D(...)  fprintf(stderr,__VA_ARGS__)
23#define  STRINGIFY(x)  _STRINGIFY(x)
24#define _STRINGIFY(x)  #x
25
26#define  ESD_SYMBOLS   \
27    ESD_FUNCTION(int,esd_play_stream,(esd_format_t,int,const char*,const char*))   \
28    ESD_FUNCTION(int,esd_record_stream,(esd_format_t,int,const char*,const char*)) \
29    ESD_FUNCTION(int,esd_open_sound,( const char *host )) \
30    ESD_FUNCTION(int,esd_close,(int)) \
31
32/* define pointers to library functions we're going to use */
33#define  ESD_FUNCTION(ret,name,sig)   \
34    static ret  (*func_ ## name)sig;
35
36ESD_SYMBOLS
37
38#undef  ESD_FUNCTION
39static void*    esd_lib;
40
41int main( void )
42{
43    int  fd;
44
45    esd_lib = dlopen( "libesd.so", RTLD_NOW );
46    if (esd_lib == NULL)
47        esd_lib = dlopen( "libesd.so.0", RTLD_NOW );
48
49    if (esd_lib == NULL) {
50        D("could not find libesd on this system\n");
51        return 1;
52    }
53
54#undef  ESD_FUNCTION
55#define ESD_FUNCTION(ret,name,sig)                                               \
56    do {                                                                         \
57        (func_ ##name) = dlsym( esd_lib, STRINGIFY(name) );                      \
58        if ((func_##name) == NULL) {                                             \
59            D("could not find %s in libesd\n", STRINGIFY(name));   \
60            return 1;                                               \
61        }                                                                        \
62    } while (0);
63
64    ESD_SYMBOLS
65
66    return 0;
67}
68