Module sys 

Low-level Linux io_uring bindings.

Structs

__kernel_timespec

Kernel timespec structure.

io_cqring_offsets

Offsets for the completion queue ring members.

io_sqring_offsets

Offsets for the submission queue ring members.

io_uring_cqe

A Completion Queue Entry.

io_uring_params

Parameters for io_uring_setup.

io_uring_sqe

A Submission Queue Entry.

Constants

IORING_ACCEPT_MULTISHOT

Accept flag: enable multishot mode.

IORING_ENTER_GETEVENTS

Enter flag: wait for events.

IORING_OFF_CQ_RING

Offset for mapping the completion queue ring.

IORING_OFF_SQES

Offset for mapping the submission queue entries.

IORING_OFF_SQ_RING

Offset for mapping the submission queue ring.

IORING_OP_ACCEPT

Opcode: accept a new connection.

IORING_OP_ASYNC_CANCEL

Opcode: cancel an asynchronous operation.

IORING_OP_CLOSE

Opcode: close a file descriptor.

IORING_OP_CONNECT

Opcode: connect to a remote address.

IORING_OP_OPENAT

Opcode: open a file relative to a directory.

IORING_OP_READ

Opcode: standard read.

IORING_OP_READV

Opcode: vectored read.

IORING_OP_READ_FIXED

Opcode: read from a fixed buffer.

IORING_OP_SPLICE

Opcode: splice two file descriptors.

IORING_OP_TIMEOUT

Opcode: register a timeout.

IORING_OP_WRITE

Opcode: standard write.

IORING_OP_WRITEV

Opcode: vectored write.

IORING_OP_WRITE_FIXED

Opcode: write to a fixed buffer.

IORING_REGISTER_BUFFERS

Register opcode: register a set of buffers.

IORING_SETUP_CQSIZE

Setup flag: specify a custom CQ size.

IORING_SETUP_SQPOLL

Setup flag: use a kernel thread to poll for SQEs.

IORING_UNREGISTER_BUFFERS

Register opcode: unregister previously registered buffers.

IOSQE_ASYNC

SQE flag: start operation asynchronously.

IOSQE_BUFFER_SELECT

SQE flag: use a buffer from the provided pool.

IOSQE_FIXED_FILE

SQE flag: use a fixed file descriptor.

IOSQE_IO_DRAIN

SQE flag: drain all previous requests before starting.

IOSQE_IO_HARDLINK

SQE flag: hard-link this operation with the next one.

IOSQE_IO_LINK

SQE flag: link this operation with the next one.

SYS_IO_URING_ENTER

Syscall number for io_uring_enter.

SYS_IO_URING_REGISTER

Syscall number for io_uring_register.

SYS_IO_URING_SETUP

Syscall number for io_uring_setup.

Functions

io_uring_enter^⚠

Low-level wrapper for io_uring_enter syscall.

io_uring_setup^⚠

Low-level wrapper for io_uring_setup syscall.