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Diffstat (limited to 'sysroot/usr/include/alsa/global.h')
| -rw-r--r-- | sysroot/usr/include/alsa/global.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/sysroot/usr/include/alsa/global.h b/sysroot/usr/include/alsa/global.h new file mode 100644 index 0000000..f388e4b --- /dev/null +++ b/sysroot/usr/include/alsa/global.h @@ -0,0 +1,156 @@ +/** + * \file include/global.h + * \brief Application interface library for the ALSA driver + * \author Jaroslav Kysela <perex@perex.cz> + * \author Abramo Bagnara <abramo@alsa-project.org> + * \author Takashi Iwai <tiwai@suse.de> + * \date 1998-2001 + * + * Application interface library for the ALSA driver + */ +/* + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __ALSA_GLOBAL_H_ +#define __ALSA_GLOBAL_H_ + +/* for timeval and timespec */ +#include <time.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \defgroup Global Global defines and functions + * Global defines and functions. + * \par + * The ALSA library implementation uses these macros and functions. + * Most applications probably do not need them. + * \{ + */ + +const char *snd_asoundlib_version(void); + +#ifndef ATTRIBUTE_UNUSED +/** do not print warning (gcc) when function parameter is not used */ +#define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +#endif + +#ifdef PIC /* dynamic build */ + +/** \hideinitializer \brief Helper macro for #SND_DLSYM_BUILD_VERSION. */ +#define __SND_DLSYM_VERSION(name, version) _ ## name ## version +/** + * \hideinitializer + * \brief Appends the build version to the name of a versioned dynamic symbol. + */ +#define SND_DLSYM_BUILD_VERSION(name, version) char __SND_DLSYM_VERSION(name, version); + +#else /* static build */ + +struct snd_dlsym_link { + struct snd_dlsym_link *next; + const char *dlsym_name; + const void *dlsym_ptr; +}; + +extern struct snd_dlsym_link *snd_dlsym_start; + +/** \hideinitializer \brief Helper macro for #SND_DLSYM_BUILD_VERSION. */ +#define __SND_DLSYM_VERSION(prefix, name, version) _ ## prefix ## name ## version +/** + * \hideinitializer + * \brief Appends the build version to the name of a versioned dynamic symbol. + */ +#define SND_DLSYM_BUILD_VERSION(name, version) \ + static struct snd_dlsym_link __SND_DLSYM_VERSION(snd_dlsym_, name, version); \ + void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) __attribute__ ((constructor)); \ + void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) { \ + __SND_DLSYM_VERSION(snd_dlsym_, name, version).next = snd_dlsym_start; \ + __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_name = # name; \ + __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_ptr = (void *)&name; \ + snd_dlsym_start = &__SND_DLSYM_VERSION(snd_dlsym_, name, version); \ + } + +#endif + +#ifndef __STRING +/** \brief Return 'x' argument as string */ +#define __STRING(x) #x +#endif + +/** \brief Returns the version of a dynamic symbol as a string. */ +#define SND_DLSYM_VERSION(version) __STRING(version) + +void *snd_dlopen(const char *file, int mode); +void *snd_dlsym(void *handle, const char *name, const char *version); +int snd_dlclose(void *handle); + + +/** + * \brief Internal structure for an async notification client handler. + * + * The ALSA library uses a pointer to this structure as a handle to an async + * notification object. Applications don't access its contents directly. + */ +typedef struct _snd_async_handler snd_async_handler_t; + +/** + * \brief Async notification callback. + * + * See the #snd_async_add_handler function for details. + */ +typedef void (*snd_async_callback_t)(snd_async_handler_t *handler); + +int snd_async_add_handler(snd_async_handler_t **handler, int fd, + snd_async_callback_t callback, void *private_data); +int snd_async_del_handler(snd_async_handler_t *handler); +int snd_async_handler_get_fd(snd_async_handler_t *handler); +int snd_async_handler_get_signo(snd_async_handler_t *handler); +void *snd_async_handler_get_callback_private(snd_async_handler_t *handler); + +struct snd_shm_area *snd_shm_area_create(int shmid, void *ptr); +struct snd_shm_area *snd_shm_area_share(struct snd_shm_area *area); +int snd_shm_area_destroy(struct snd_shm_area *area); + +int snd_user_file(const char *file, char **result); + +#if !defined(_POSIX_C_SOURCE) && !defined(_POSIX_SOURCE) +struct timeval { + time_t tv_sec; /* seconds */ + long tv_usec; /* microseconds */ +}; + +struct timespec { + time_t tv_sec; /* seconds */ + long tv_nsec; /* nanoseconds */ +}; +#endif + +/** Timestamp */ +typedef struct timeval snd_timestamp_t; +/** Hi-res timestamp */ +typedef struct timespec snd_htimestamp_t; + +/** \} */ + +#ifdef __cplusplus +} +#endif + +#endif /* __ALSA_GLOBAL_H */ |