Struct svn_txdelta_window_t 

#[repr(C)]
pub struct svn_txdelta_window_t {
    pub sview_offset: svn_filesize_t,
    pub sview_len: apr_size_t,
    pub tview_len: apr_size_t,
    pub num_ops: c_int,
    pub src_ops: c_int,
    pub ops: *const svn_txdelta_op_t,
    pub new_data: *const svn_string_t,
}

An #svn_txdelta_window_t object describes how to reconstruct a contiguous section of the target string (the “target view”) using a specified contiguous region of the source string (the “source view”). It contains a series of instructions which assemble the new target string text by pulling together substrings from:

• the source view,

• the previously constructed portion of the target view,

• a string of new data contained within the window structure

The source view must always slide forward from one window to the next; that is, neither the beginning nor the end of the source view may move to the left as we read from a window stream. This property allows us to apply deltas to non-seekable source streams without making a full copy of the source stream.

Fields

sview_offset: svn_filesize_t

The offset of the source view for this window.

sview_len: apr_size_t

The length of the source view for this window.

tview_len: apr_size_t

The length of the target view for this window, i.e. the number of bytes which will be reconstructed by the instruction stream.

num_ops: c_int

The number of instructions in this window.

src_ops: c_int

The number of svn_txdelta_source instructions in this window. If this number is 0, we don’t need to read the source in order to reconstruct the target view.

ops: *const svn_txdelta_op_t

The instructions for this window.

new_data: *const svn_string_t

New data, for use by any `svn_txdelta_new’ instructions.

Trait Implementations

impl Default for svn_txdelta_window_t

fn default() -> Self

Returns the “default value” for a type.