during

Modules

io_uring

module during.io_uring

io_uring system api definitions.

openat2

module during.openat2

Undocumented in source.

tests

module during.tests

Undocumented in source.

Public Imports

during.io_uring

public import during.io_uring;

Undocumented in source.

Members

Functions

fill

void fill(SubmissionEntry entry, E op)

Uses custom operation definition to fill fields of SubmissionEntry. Can be used in cases, when builtin prep* functions aren't enough.

prepAccept

void prepAccept(SubmissionEntry entry, int fd, ADDR addr, socklen_t addrlen, AcceptFlags flags)

Prepares accept4(2) operation.

prepCancel

void prepCancel(SubmissionEntry entry, D userData, uint flags)

Prepares operation that cancels existing async work.

prepClose

void prepClose(SubmissionEntry entry, int fd)

Note: Available from Linux 5.6

prepConnect

void prepConnect(SubmissionEntry entry, int fd, const(ADDR) addr)

Note: Available from Linux 5.5

prepEpollCtl

void prepEpollCtl(SubmissionEntry entry, int epfd, int fd, int op, epoll_event ev)

Note: Available from Linux 5.6

prepFadvise

void prepFadvise(SubmissionEntry entry, int fd, long offset, uint len, int advice)

Note: Available from Linux 5.6

prepFallocate

void prepFallocate(SubmissionEntry entry, int fd, int mode, long offset, long len)

Note: Available from Linux 5.6

prepFilesUpdate

void prepFilesUpdate(SubmissionEntry entry, int[] fds, int offset)

Note: Available from Linux 5.6

prepFsync

void prepFsync(SubmissionEntry entry, int fd, FsyncFlags flags)

Prepares fsync operation.

prepLinkTimeout

void prepLinkTimeout(SubmissionEntry entry, KernelTimespec time, TimeoutFlags flags)

Prepares linked timeout operation.

prepMadvise

void prepMadvise(SubmissionEntry entry, const(ubyte)[] block, int advice)

Note: Available from Linux 5.6

prepNop

void prepNop(SubmissionEntry entry)

Prepares nop operation.

prepOpenat

void prepOpenat(SubmissionEntry entry, int fd, char* path, int flags, uint mode)

Note: Available from Linux 5.6

prepOpenat2

void prepOpenat2(SubmissionEntry entry, int fd, char* path, OpenHow how)

Note: Available from Linux 5.6

prepPollAdd

void prepPollAdd(SubmissionEntry entry, int fd, PollEvents events)

Poll the fd specified in the submission queue entry for the events specified in the poll_events field. Unlike poll or epoll without EPOLLONESHOT, this interface always works in one shot mode. That is, once the poll operation is completed, it will have to be resubmitted.

prepPollRemove

void prepPollRemove(SubmissionEntry entry, D userData)

Remove an existing poll request. If found, the res field of the CompletionEntry will contain 0. If not found, res will contain -ENOENT.

prepProvideBuffers

void prepProvideBuffers(SubmissionEntry entry, ubyte[] buf, int nr, ushort bgid, int bid)

Note: Available from Linux 5.7

prepRead

void prepRead(SubmissionEntry entry, int fd, ubyte[] buffer, long offset)

Note: Available from Linux 5.6

prepReadFixed

void prepReadFixed(SubmissionEntry entry, int fd, long offset, ubyte[] buffer, ushort bufferIndex)

Prepares read_fixed operation.

prepReadv

void prepReadv(SubmissionEntry entry, int fd, V buffer, long offset)

Prepares readv operation.

prepRecv

void prepRecv(SubmissionEntry entry, int sockfd, ubyte[] buf, MsgFlags flags)

Note: Available from Linux 5.6

prepRecvMsg

void prepRecvMsg(SubmissionEntry entry, int fd, msghdr msg, MsgFlags flags)

Prepares recvmsg(2) operation.

prepRemoveBuffers

void prepRemoveBuffers(SubmissionEntry entry, int nr, ushort bgid)

Note: Available from Linux 5.7

prepSend

void prepSend(SubmissionEntry entry, int sockfd, const(ubyte)[] buf, MsgFlags flags)

Note: Available from Linux 5.6

prepSendMsg

void prepSendMsg(SubmissionEntry entry, int fd, msghdr msg, MsgFlags flags)

Prepares sendmsg(2) operation.

prepSplice

void prepSplice(SubmissionEntry entry, int fd_in, ulong off_in, int fd_out, ulong off_out, uint nbytes, uint splice_flags)

Note: Available from Linux 5.7

prepStatx

void prepStatx(SubmissionEntry entry, int fd, char* path, int flags, uint mask, Statx statxbuf)

Note: Available from Linux 5.6

prepSyncFileRange

void prepSyncFileRange(SubmissionEntry entry, int fd, ulong offset, uint len, SyncFileRangeFlags flags)

Prepares sync_file_range(2) operation.

prepTee

void prepTee(SubmissionEntry entry, int fd_in, int fd_out, uint nbytes, uint flags)

Note: Available from Linux 5.8

prepTimeout

void prepTimeout(SubmissionEntry entry, KernelTimespec time, ulong count, TimeoutFlags flags)

This command will register a timeout operation.

prepTimeoutRemove

void prepTimeoutRemove(SubmissionEntry entry, D userData)

Prepares operations to remove existing timeout registered using TIMEOUToperation.

prepWrite

void prepWrite(SubmissionEntry entry, int fd, const(ubyte)[] buffer, long offset)

Note: Available from Linux 5.6

prepWriteFixed

void prepWriteFixed(SubmissionEntry entry, int fd, long offset, ubyte[] buffer, ushort bufferIndex)

Prepares write_fixed operation.

prepWritev

void prepWritev(SubmissionEntry entry, int fd, V buffer, long offset)

Prepares writev operation.

setUserData

void setUserData(SubmissionEntry entry, D data)

Template function to help set SubmissionEntry user_data field.

setup

int setup(Uring uring, uint entries, SetupFlags flags)

Setup new instance of io_uring into provided Uring structure.

Structs

Uring

struct Uring

Main entry point to work with io_uring.

• dub_test_root
• during
• echo_server