diff options
Diffstat (limited to 'lib/libc/sys/aio_write.2')
| -rw-r--r-- | lib/libc/sys/aio_write.2 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/libc/sys/aio_write.2 b/lib/libc/sys/aio_write.2 index e417f82..5fe8d98 100644 --- a/lib/libc/sys/aio_write.2 +++ b/lib/libc/sys/aio_write.2 @@ -47,7 +47,8 @@ to the descriptor .Fa iocb->aio_fildes . The call returns immediately after the write request has been enqueued to the descriptor; the write may or may not have completed at the time -the call returns. If the request could not be enqueued, generally due +the call returns. +If the request could not be enqueued, generally due to invalid arguments, the call returns without having enqueued the request. .Pp @@ -57,7 +58,8 @@ is set for .Fa iocb->aio_fildes , .Fn aio_write operations append to the file in the same order as the calls were -made. If +made. +If .Dv O_APPEND is not set for the file descriptor, the write operation will occur at the absolute position from the beginning of the file plus @@ -89,7 +91,8 @@ The Asynchronous I/O Control Block structure pointed to by and the buffer that the .Fa iocb->aio_buf member of that structure references must remain valid until the -operation has completed. For this reason, use of auto (stack) variables +operation has completed. +For this reason, use of auto (stack) variables for these objects is discouraged. .Pp The asynchronous I/O control buffer @@ -124,7 +127,8 @@ system call is not supported. .Pp The following conditions may be synchronously detected when the .Fn aio_write -system call is made, or asynchronously, at any time thereafter. If they +system call is made, or asynchronously, at any time thereafter. +If they are detected at call time, .Fn aio_write returns -1 and sets |
