Function read_fixed [src]

Queues (but does not submit) an SQE to perform a IORING_OP_READ_FIXED. The buffer provided must be registered with the kernel by calling register_buffers first. The buffer_index must be the same as its index in the array provided to register_buffers. Returns a pointer to the SQE so that you can further modify the SQE for advanced use cases.

Prototype

 pub fn read_fixed( self: *IoUring, user_data: u64, fd: posix.fd_t, buffer: *posix.iovec, offset: u64, buffer_index: u16, ) !*linux.io_uring_sqe

Parameters

self: *IoUringuser_data: u64fd: posix.fd_tbuffer: *posix.iovecoffset: u64buffer_index: u16

Source

  pub fn read_fixed(
    self: *IoUring,
    user_data: u64,
    fd: posix.fd_t,
    buffer: *posix.iovec,
    offset: u64,
    buffer_index: u16,
) !*linux.io_uring_sqe {
    const sqe = try self.get_sqe();
    sqe.prep_read_fixed(fd, buffer, offset, buffer_index);
    sqe.user_data = user_data;
    return sqe;
}  