| Behavior |
Meaning |
|
Auto close
|
Automatically closes the I/O
object when it is destroyed.
|
|
Raw I/O
|
Reads and writes an
interface using buffers of data without formatting or internal buffering.
Raw I/O sends raw data buffers to and receives them from the underlying
system calls.
|
|
I/O state
|
Each I/O object maintains a
state indicating whether or not the object is ready for I/O.
|
|
Open control
|
An I/O object with an os_open_t
parameter in its constructor is constructed either to access an existing
object in the system or to create a new object.
You cannot change open
control settings after an I/O object is opened. The os_open_control
class encapsulates the variations in an os_open_t
parameter.
|
|
I/O control
|
An I/O object with a
constructor that takes an os_ioctl_t
parameter, or has an interface containing io_control()
, can be constructed with special I/O characteristics. These
characteristics include the object's blocking mode.
The os_io_control
class encapsulates the variations in an os_ioctl_t
parameter.
|
|
Status
|
You can query many I/O
objects for a status, which is returned in the form of an os_io_status
object. This status object contains the object's size, device, inode
number, user, group, and access times.
|
