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 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
