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00028 #ifndef __ALSA_GLOBAL_H_
00029 #define __ALSA_GLOBAL_H_
00030
00031
00032 #include <time.h>
00033
00034 #ifdef __cplusplus
00035 extern "C" {
00036 #endif
00037
00047 const char *snd_asoundlib_version(void);
00048
00049 #ifndef ATTRIBUTE_UNUSED
00050
00051 #define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
00052 #endif
00053
00054 #ifdef PIC
00055
00057 #define __SND_DLSYM_VERSION(name, version) _ ## name ## version
00058
00062 #define SND_DLSYM_BUILD_VERSION(name, version) char __SND_DLSYM_VERSION(name, version);
00063
00064 #else
00065
00066 struct snd_dlsym_link {
00067 struct snd_dlsym_link *next;
00068 const char *dlsym_name;
00069 const void *dlsym_ptr;
00070 };
00071
00072 extern struct snd_dlsym_link *snd_dlsym_start;
00073
00075 #define __SND_DLSYM_VERSION(prefix, name, version) _ ## prefix ## name ## version
00076
00080 #define SND_DLSYM_BUILD_VERSION(name, version) \
00081 static struct snd_dlsym_link __SND_DLSYM_VERSION(snd_dlsym_, name, version); \
00082 void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) __attribute__ ((constructor)); \
00083 void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) { \
00084 __SND_DLSYM_VERSION(snd_dlsym_, name, version).next = snd_dlsym_start; \
00085 __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_name = # name; \
00086 __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_ptr = (void *)&name; \
00087 snd_dlsym_start = &__SND_DLSYM_VERSION(snd_dlsym_, name, version); \
00088 }
00089
00090 #endif
00091
00092 #ifndef __STRING
00093
00094 #define __STRING(x) #x
00095 #endif
00096
00098 #define SND_DLSYM_VERSION(version) __STRING(version)
00099
00100 void *snd_dlopen(const char *file, int mode);
00101 void *snd_dlsym(void *handle, const char *name, const char *version);
00102 int snd_dlclose(void *handle);
00103
00104
00106 #define __snd_alloca(ptr,type) do { *ptr = (type##_t *) alloca(type##_sizeof()); memset(*ptr, 0, type##_sizeof()); } while (0)
00107
00114 typedef struct _snd_async_handler snd_async_handler_t;
00115
00121 typedef void (*snd_async_callback_t)(snd_async_handler_t *handler);
00122
00123 int snd_async_add_handler(snd_async_handler_t **handler, int fd,
00124 snd_async_callback_t callback, void *private_data);
00125 int snd_async_del_handler(snd_async_handler_t *handler);
00126 int snd_async_handler_get_fd(snd_async_handler_t *handler);
00127 int snd_async_handler_get_signo(snd_async_handler_t *handler);
00128 void *snd_async_handler_get_callback_private(snd_async_handler_t *handler);
00129
00130 struct snd_shm_area *snd_shm_area_create(int shmid, void *ptr);
00131 struct snd_shm_area *snd_shm_area_share(struct snd_shm_area *area);
00132 int snd_shm_area_destroy(struct snd_shm_area *area);
00133
00134 int snd_user_file(const char *file, char **result);
00135
00136 #if !defined(_POSIX_C_SOURCE) && !defined(_POSIX_SOURCE)
00137 struct timeval {
00138 time_t tv_sec;
00139 long tv_usec;
00140 };
00141
00142 struct timespec {
00143 time_t tv_sec;
00144 long tv_nsec;
00145 };
00146 #endif
00147
00149 typedef struct timeval snd_timestamp_t;
00151 typedef struct timespec snd_htimestamp_t;
00152
00155 #ifdef __cplusplus
00156 }
00157 #endif
00158
00159 #endif