Struct Open 

pub struct Open {
    pub mode: OpenMode,
    pub format: Format,
    pub page: Option<Page>,
    pub assigned: Option<String>,
    /* private fields */
}

Fields

mode: OpenMode

format: Format

page: Option<Page>

The logical page of a LINAGE file opened OUTPUT or EXTEND.

assigned: Option<String>

The DD a file whose ASSIGN names a data item was opened on.

Implementations

impl Open

pub fn keyed(&mut self) -> Option<&mut Keyed>

pub fn is_keyed(&self) -> bool

pub fn mark_open(&mut self, data_set: &Path) -> Result<()>

Marks the VSAM data set this file holds open for output until CLOSE (open_mark).

pub fn read(&mut self, fixed_len: usize) -> Result<Record>

pub fn write(&mut self, bytes: &[u8]) -> Result<()>

pub fn print( &mut self, before: Option<Move>, line: &str, after: Option<Move>, ) -> Result<()>

Writes a line to a text DD where a printer would put it: after before, over a line not yet ended when nothing moved the paper (after a carriage return, unless one of the two is blank), then after. The first line of the DD takes one line of before as its own start, as a printer at the top of a form prints a single-spaced first line on line 1.

pub fn close(self) -> Result<()>

pub fn abandon(self) -> Result<()>

Ends the file as an abend that Language Environment is not told of leaves it: its records are written as CLOSE writes them, and a VSAM data set keeps its open mark (numeric::assumptions::TRAP_OFF_LEAVES_FILES_OPEN).