ALSA project - the C library reference: /builddir/build/BUILD/alsa-lib-1.1.0/include/global.h Source File

- Main Page
- Related Pages
- Modules
- Data Structures
- Files
- Examples

- File List
- Globals

# /builddir/build/BUILD/alsa-lib-1.1.0/include/global.h

Go to the documentation of this file.

    00001
    00011 /*
    00012  *   This library is free software; you can redistribute it and/or modify
    00013  *   it under the terms of the GNU Lesser General Public License as
    00014  *   published by the Free Software Foundation; either version 2.1 of
    00015  *   the License, or (at your option) any later version.
    00016  *
    00017  *   This program is distributed in the hope that it will be useful,
    00018  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
    00019  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00020  *   GNU Lesser General Public License for more details.
    00021  *
    00022  *   You should have received a copy of the GNU Lesser General Public
    00023  *   License along with this library; if not, write to the Free Software
    00024  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
    00025  *
    00026  */
    00027
    00028 #ifndef __ALSA_GLOBAL_H_
    00029 #define __ALSA_GLOBAL_H_
    00030
    00031 /* for timeval and timespec */
    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 /* dynamic build */
    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 /* static build */
    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 #ifdef __GLIBC__
    00137 #if !defined(_POSIX_C_SOURCE) && !defined(_POSIX_SOURCE)
    00138 struct timeval {
    00139         time_t          tv_sec;         /* seconds */
    00140         long            tv_usec;        /* microseconds */
    00141 };
    00142
    00143 struct timespec {
    00144         time_t          tv_sec;         /* seconds */
    00145         long            tv_nsec;        /* nanoseconds */
    00146 };
    00147 #endif
    00148 #endif
    00149
    00151 typedef struct timeval snd_timestamp_t;
    00153 typedef struct timespec snd_htimestamp_t;
    00154
    00157 #ifdef __cplusplus
    00158 }
    00159 #endif
    00160
    00161 #endif /* __ALSA_GLOBAL_H */

All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Defines