00001
00028 #ifndef __ALSA_GLOBAL_H_
00029 #define __ALSA_GLOBAL_H_
00030
00031 #ifdef __cplusplus
00032 extern "C" {
00033 #endif
00034
00044 #ifndef ATTRIBUTE_UNUSED
00045
00046 #define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
00047 #endif
00048
00049 #ifdef PIC
00050
00052 #define __SND_DLSYM_VERSION(name, version) _ ## name ## version
00053
00057 #define SND_DLSYM_BUILD_VERSION(name, version) char __SND_DLSYM_VERSION(name, version);
00058
00059 #else
00060
00061 struct snd_dlsym_link {
00062 struct snd_dlsym_link *next;
00063 const char *dlsym_name;
00064 const void *dlsym_ptr;
00065 };
00066
00067 extern struct snd_dlsym_link *snd_dlsym_start;
00068
00070 #define __SND_DLSYM_VERSION(prefix, name, version) _ ## prefix ## name ## version
00071
00075 #define SND_DLSYM_BUILD_VERSION(name, version) \
00076 static struct snd_dlsym_link __SND_DLSYM_VERSION(snd_dlsym_, name, version); \
00077 void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) __attribute__ ((constructor)); \
00078 void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) { \
00079 __SND_DLSYM_VERSION(snd_dlsym_, name, version).next = snd_dlsym_start; \
00080 __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_name = # name; \
00081 __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_ptr = (void *)&name; \
00082 snd_dlsym_start = &__SND_DLSYM_VERSION(snd_dlsym_, name, version); \
00083 }
00084
00085 #endif
00086
00087 #ifndef __STRING
00088
00089 #define __STRING(x) #x
00090 #endif
00091
00093 #define SND_DLSYM_VERSION(version) __STRING(version)
00094
00095 void *snd_dlopen(const char *file, int mode);
00096 void *snd_dlsym(void *handle, const char *name, const char *version);
00097 int snd_dlclose(void *handle);
00098
00099
00106 typedef struct _snd_async_handler snd_async_handler_t;
00107
00113 typedef void (*snd_async_callback_t)(snd_async_handler_t *handler);
00114
00115 int snd_async_add_handler(snd_async_handler_t **handler, int fd,
00116 snd_async_callback_t callback, void *private_data);
00117 int snd_async_del_handler(snd_async_handler_t *handler);
00118 int snd_async_handler_get_fd(snd_async_handler_t *handler);
00119 int snd_async_handler_get_signo(snd_async_handler_t *handler);
00120 void *snd_async_handler_get_callback_private(snd_async_handler_t *handler);
00121
00122 struct snd_shm_area *snd_shm_area_create(int shmid, void *ptr);
00123 struct snd_shm_area *snd_shm_area_share(struct snd_shm_area *area);
00124 int snd_shm_area_destroy(struct snd_shm_area *area);
00125
00126 int snd_user_file(const char *file, char **result);
00127
00129 typedef struct timeval snd_timestamp_t;
00131 typedef struct timespec snd_htimestamp_t;
00132
00135 #ifdef __cplusplus
00136 }
00137 #endif
00138
00139 #endif