00001
00028 #ifndef __ALSA_GLOBAL_H_
00029 #define __ALSA_GLOBAL_H_
00030
00031 #ifdef __cplusplus
00032 extern "C" {
00033 #endif
00034
00044 const char *snd_asoundlib_version(void);
00045
00046 #ifndef ATTRIBUTE_UNUSED
00047
00048 #define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
00049 #endif
00050
00051 #ifdef PIC
00052
00054 #define __SND_DLSYM_VERSION(name, version) _ ## name ## version
00055
00059 #define SND_DLSYM_BUILD_VERSION(name, version) char __SND_DLSYM_VERSION(name, version);
00060
00061 #else
00062
00063 struct snd_dlsym_link {
00064 struct snd_dlsym_link *next;
00065 const char *dlsym_name;
00066 const void *dlsym_ptr;
00067 };
00068
00069 extern struct snd_dlsym_link *snd_dlsym_start;
00070
00072 #define __SND_DLSYM_VERSION(prefix, name, version) _ ## prefix ## name ## version
00073
00077 #define SND_DLSYM_BUILD_VERSION(name, version) \
00078 static struct snd_dlsym_link __SND_DLSYM_VERSION(snd_dlsym_, name, version); \
00079 void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) __attribute__ ((constructor)); \
00080 void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) { \
00081 __SND_DLSYM_VERSION(snd_dlsym_, name, version).next = snd_dlsym_start; \
00082 __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_name = # name; \
00083 __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_ptr = (void *)&name; \
00084 snd_dlsym_start = &__SND_DLSYM_VERSION(snd_dlsym_, name, version); \
00085 }
00086
00087 #endif
00088
00089 #ifndef __STRING
00090
00091 #define __STRING(x) #x
00092 #endif
00093
00095 #define SND_DLSYM_VERSION(version) __STRING(version)
00096
00097 void *snd_dlopen(const char *file, int mode);
00098 void *snd_dlsym(void *handle, const char *name, const char *version);
00099 int snd_dlclose(void *handle);
00100
00101
00108 typedef struct _snd_async_handler snd_async_handler_t;
00109
00115 typedef void (*snd_async_callback_t)(snd_async_handler_t *handler);
00116
00117 int snd_async_add_handler(snd_async_handler_t **handler, int fd,
00118 snd_async_callback_t callback, void *private_data);
00119 int snd_async_del_handler(snd_async_handler_t *handler);
00120 int snd_async_handler_get_fd(snd_async_handler_t *handler);
00121 int snd_async_handler_get_signo(snd_async_handler_t *handler);
00122 void *snd_async_handler_get_callback_private(snd_async_handler_t *handler);
00123
00124 struct snd_shm_area *snd_shm_area_create(int shmid, void *ptr);
00125 struct snd_shm_area *snd_shm_area_share(struct snd_shm_area *area);
00126 int snd_shm_area_destroy(struct snd_shm_area *area);
00127
00128 int snd_user_file(const char *file, char **result);
00129
00131 typedef struct timeval snd_timestamp_t;
00133 typedef struct timespec snd_htimestamp_t;
00134
00137 #ifdef __cplusplus
00138 }
00139 #endif
00140
00141 #endif