Function wasi_common::hostcalls::fd_read

pub unsafe fn fd_read(
    wasi_ctx: &mut WasiCtx, 
    memory: &mut [u8], 
    fd: __wasi_fd_t, 
    iovs_ptr: uintptr_t, 
    iovs_len: size_t, 
    nread: uintptr_t
) -> __wasi_errno_t