1 /*
2 * Copyright (C) 2010 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 PULSEAUDIO_SYMBOLS \
27 PULSEAUDIO_SYMBOLS(pa_simple*,pa_simple_new,(const char* server,const char* name, pa_stream_direction_t dir, const char* dev, const char* stream_name, const pa_sample_spec* ss, const pa_channel_map* map, const pa_buffer_attr *attr, int *error)) \
28 PULSEAUDIO_SYMBOLS(void,pa+simple_free,(pa_simple* s))\
29 PULSEAUDIO_SYMBOLS(int,pa_simple_write,(pa_simple* s, const void* data, size_t bytes, int* error))\
30 PULSEAUDIO_SYMBOLS(int,pa_simple_read,(pa_simple* s,void* data, size_t bytes, int* error))\
31 PULSEAUDIO_SYMBOLS(const char*,pa_strerror,(int error))
32
33 /* define pointers to library functions we're going to use */
34 #define PULSEAUDIO_FUNCTION(ret,name,sig) \
35 static ret (*func_ ## name)sig;
36
37 PULSEAUDIO_SYMBOLS
38
39 #undef PULSEAUDIO_FUNCTION
40 static void* pa_lib;
41
main(void)42 int main( void )
43 {
44 int fd;
45
46 pa_lib = dlopen( "libpulse-simple.so", RTLD_NOW );
47 if (pa_lib == NULL)
48 pa_lib = dlopen( "libpulse-simple.so.0", RTLD_NOW );
49
50 if (pa_lib == NULL) {
51 D("could not find libpulse on this system");
52 return 1;
53 }
54
55 #undef PULSEAUDIO_FUNCTION
56 #define PULSEAUDIO_FUNCTION(ret,name,sig) \
57 do { \
58 (func_ ##name) = dlsym( pa_lib, STRINGIFY(name) ); \
59 if ((func_##name) == NULL) { \
60 D("could not find %s in libpulse\n", STRINGIFY(name)); \
61 return 1; \
62 } \
63 } while (0);
64
65 PULSEAUDIO_SYMBOLS
66
67 return 0;
68 }
69