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Diffstat (limited to 'sys/sys/aio.h')
-rw-r--r--sys/sys/aio.h22
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