Type Alias XLogPageReadCB 

pub type XLogPageReadCB = Option<unsafe extern "C-unwind" fn(xlogreader: *mut XLogReaderState, targetPagePtr: XLogRecPtr, reqLen: c_int, targetRecPtr: XLogRecPtr, readBuf: *mut c_char) -> c_int>;

Aliased Type

pub enum XLogPageReadCB {
    None,
    Some(unsafe extern "C-unwind" fn(*mut XLogReaderState, u64, i32, u64, *mut i8) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C-unwind" fn(*mut XLogReaderState, u64, i32, u64, *mut i8) -> i32)

Some value of type T.