Module io_uring::opcode

Operation codes that can be used to construct squeue::Entrys.

Structs

Accept	Accept a new connection on a socket, equivalent to accept4(2).
AsyncCancel	Attempt to cancel an already issued request.
Close	Close a file descriptor, equivalent to close(2).
Connect	Connect a socket, equivalent to connect(2).
EpollCtl	Modify an epoll file descriptor, equivalent to epoll_ctl(2).
Fadvise	Predeclare an access pattern for file data, equivalent to posix_fadvise(2).
Fallocate	Preallocate or deallocate space to a file, equivalent to fallocate(2).
FilesUpdate	This command is an alternative to using Submitter::register_files_update which then works in an async fashion, like the rest of the io_uring commands.
Fsync	File sync, equivalent to fsync(2).
LinkTimeout	This request must be linked with another request through Flags::IO_LINK which is described below. Unlike Timeout, LinkTimeout acts on the linked request, not the completion queue.
Madvise	Give advice about use of memory, equivalent to madvise(2).
Nop	Do not perform any I/O.
OpenAt	Open a file, equivalent to openat(2).
OpenAt2	Open a file, equivalent to openat2(2).
PollAdd	Poll the specified fd.
PollRemove	Remove an existing poll request.
ProvideBuffers	Register nbufs buffers that each have the length len with ids starting from big in the group bgid that can be used for any request. See BUFFER_SELECT for more info.
Read	Read from a file descriptor, equivalent to read(2).
ReadFixed	Read from pre-mapped buffers that have been previously registered with Submitter::register_buffers.
Readv	Vectored read, equivalent to preadv2(2).
Recv	Receive a message from a socket, equivalent to recv(2).
RecvMsg	Receive a message on a socket, equivalent to recvmsg(2).
RemoveBuffers	Remove some number of buffers from a buffer group. See BUFFER_SELECT for more info.
RenameAt
Send	Send a message on a socket, equivalent to send(2).
SendMsg	Send a message on a socket, equivalent to send(2).
Shutdown
Splice	Splice data to/from a pipe, equivalent to splice(2).
Statx	Get file status, equivalent to statx(2).
SyncFileRange	Sync a file segment with disk, equivalent to sync_file_range(2).
Tee	Duplicate pipe content, equivalent to tee(2).
Timeout	Register a timeout operation.
TimeoutRemove	Attempt to remove an existing timeout operation.
UnlinkAt
Write	Write to a file descriptor, equivalent to write(2).
WriteFixed	Write to pre-mapped buffers that have been previously registered with Submitter::register_buffers.
Writev	Vectored write, equivalent to pwritev2(2).