diff options
Diffstat (limited to 'rt/aio.h')
| -rw-r--r-- | rt/aio.h | 39 |
1 files changed, 27 insertions, 12 deletions
@@ -43,8 +43,6 @@ struct aiocb struct sigevent aio_sigevent; /* Signal number and value. */ /* Internal members. */ - struct aiocb *__last_fd; - struct aiocb *__next_fd; struct aiocb *__next_prio; int __abs_prio; int __policy; @@ -53,10 +51,11 @@ struct aiocb #ifndef __USE_FILE_OFFSET64 __off_t aio_offset; /* File offset. */ + char __pad[sizeof (__off64_t) - sizeof (__off_t)]; #else __off64_t aio_offset; /* File offset. */ #endif - int __unused[32]; + char __unused[32]; }; /* The same for the 64bit offsets. */ @@ -71,20 +70,33 @@ struct aiocb64 struct sigevent aio_sigevent; /* Signal number and value. */ /* Internal members. */ - struct aiocb64 *__last_fd; - struct aiocb64 *__next_fd; - struct aiocb64 *__next_prio; int __abs_prio; int __policy; int __error_code; __ssize_t __return_value; __off64_t aio_offset; /* File offset. */ - int __unused[32]; + char __unused[32]; }; #endif +#ifdef __USE_GNU +/* To customize the implementation one can use the following struct. + This implementation follows the one in Irix. */ +struct aioinit + { + int aio_threads; /* Maximal number of threads. */ + int aio_num; /* Number of expected simultanious requests. */ + int aio_locks; /* Not used. */ + int aio_usedba; /* Not used. */ + int aio_debug; /* Not used. */ + int aio_numusers; /* Not used. */ + int aio_reserved[2]; + }; +#endif + + /* Return values of cancelation function. */ enum { @@ -104,12 +116,8 @@ enum #define LIO_READ LIO_READ LIO_WRITE, #define LIO_WRITE LIO_WRITE - LIO_NOP, + LIO_NOP #define LIO_NOP LIO_NOP - __LIO_DSYNC, - __LIO_SYNC, - __LIO_READ64 = LIO_READ | 128, - __LIO_WRITE64 = LIO_WRITE | 128 }; @@ -123,6 +131,13 @@ enum }; +/* Allow user to specify optimization. */ +#ifdef __USE_GNU +extern void __aio_init __P ((__const struct aioinit *__init)); +extern void aio_init __P ((__const struct aioinit *__init)); +#endif + + /* Enqueue read request for given number of bytes and the given priority. */ #ifndef __USE_FILE_OFFSET64 extern int aio_read __P ((struct aiocb *__aiocbp)); |