diff options
Diffstat (limited to 'sys/sys')
| -rw-r--r-- | sys/sys/aio.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sys/sys/aio.h b/sys/sys/aio.h index 71afdbf31b35..c0e2b4eaaaf6 100644 --- a/sys/sys/aio.h +++ b/sys/sys/aio.h @@ -27,6 +27,7 @@ #include <sys/queue.h> #include <sys/event.h> #include <sys/signalvar.h> +#include <sys/uio.h> #endif /* @@ -45,6 +46,8 @@ #ifdef _KERNEL #define LIO_SYNC 0x3 #define LIO_MLOCK 0x4 +#define LIO_WRITEV 0x5 +#define LIO_READV 0x6 #endif /* @@ -92,7 +95,7 @@ struct __aiocb_private { typedef struct aiocb { int aio_fildes; /* File descriptor */ off_t aio_offset; /* File offset for I/O */ - volatile void *aio_buf; /* I/O buffer in process space */ + volatile void *aio_buf; /* I/O buffer in process space */ size_t aio_nbytes; /* Number of bytes for I/O */ int __spare__[2]; void *__spare2__; @@ -102,6 +105,9 @@ typedef struct aiocb { struct sigevent aio_sigevent; /* Signal to deliver */ } aiocb_t; +#define aio_iov aio_buf /* I/O scatter/gather list */ +#define aio_iovcnt aio_nbytes /* Length of aio_iov */ + #ifdef _KERNEL typedef void aio_cancel_fn_t(struct kaiocb *); @@ -132,11 +138,19 @@ struct kaiocb { struct aiocb *ujob; /* (*) pointer in userspace of aiocb */ struct knlist klist; /* (a) list of knotes */ struct aiocb uaiocb; /* (*) copy of user I/O control block */ + struct uio uio; /* (*) storage for non-vectored uio */ + struct iovec iov[1]; /* (*) storage for non-vectored uio */ + struct uio *uiop; /* (*) Possibly malloced uio */ ksiginfo_t ksi; /* (a) realtime signal info */ uint64_t seqno; /* (*) job number */ aio_cancel_fn_t *cancel_fn; /* (a) backend cancel function */ aio_handle_fn_t *handle_fn; /* (c) backend handle function */ union { /* Backend-specific data fields */ + struct { /* BIO backend */ + int nbio; /* Number of remaining bios */ + int error; /* Worst error of all bios */ + long nbytes; /* Bytes completed so far */ + }; struct { /* fsync() requests */ int pending; /* (a) number of pending I/O */ }; @@ -202,11 +216,17 @@ __BEGIN_DECLS * Asynchronously read from a file */ int aio_read(struct aiocb *); +#if __BSD_VISIBLE +int aio_readv(struct aiocb *); +#endif /* * Asynchronously write to file */ int aio_write(struct aiocb *); +#if __BSD_VISIBLE +int aio_writev(struct aiocb *); +#endif /* * List I/O Asynchronously/synchronously read/write to/from file |