Function wasi::fd_pread

source · [−]
pub unsafe fn fd_pread(
    fd: Fd, 
    iovs: IovecArray<'_>, 
    offset: Filesize
) -> Result<Size, Errno>
Expand description

Read from a file descriptor, without using and updating the file descriptor’s offset. Note: This is similar to preadv in POSIX.

Parameters

  • iovs - List of scatter/gather vectors in which to store data.
  • offset - The offset within the file at which to read.

Return

The number of bytes read.