Function openat_direct [src]

Queues an openat using direct (registered) file descriptors. To use an accept direct variant, the application must first have registered a file table (with register_files). An unused table index will be dynamically chosen and returned in the CQE res field. After creation, they can be used by setting IOSQE_FIXED_FILE in the SQE flags member, and setting the SQE fd field to the direct descriptor value rather than the regular file descriptor. Available since 5.15

Prototype

 pub fn openat_direct( self: *IoUring, user_data: u64, fd: posix.fd_t, path: [*:0]const u8, flags: linux.O, mode: posix.mode_t, file_index: u32, ) !*linux.io_uring_sqe

Parameters

self: *IoUringuser_data: u64fd: posix.fd_tpath: [*:0]const u8flags: linux.Omode: posix.mode_tfile_index: u32

Source

  pub fn openat_direct(
    self: *IoUring,
    user_data: u64,
    fd: posix.fd_t,
    path: [*:0]const u8,
    flags: linux.O,
    mode: posix.mode_t,
    file_index: u32,
) !*linux.io_uring_sqe {
    const sqe = try self.get_sqe();
    sqe.prep_openat_direct(fd, path, flags, mode, file_index);
    sqe.user_data = user_data;
    return sqe;
}  