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
36 ESD_SYMBOLS
37
38 #undef ESD_FUNCTION
39 static void* esd_lib;
40
main(void)41 int 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