comparison mercurial/dirstateutils/v2.py @ 48260:269ff8978086

dirstate: store mtimes with nanosecond precision in memory

Keep integer seconds since the Unix epoch,
together with integer nanoseconds in the `0 <= n < 1e9` range.

For now, nanoseconds are still always zero.
This commit is about data structure changes.

Differential Revision: https://phab.mercurial-scm.org/D11684

48259:84f6b0c41b90

        ) = NODE.unpack(node_bytes)

        # Parse child nodes of this node recursively
        parse_nodes(map, copy_map, data, children_start, children_count)

        item = parsers.DirstateItem.from_v2_data(flags, size, mtime_s)
        if not item.any_tracked:
            continue
        path = slice_with_len(data, path_start, path_len)
        map[path] = item
        if copy_source_start:

            copy_source_len = len(copy)
        else:
            copy_source_start = 0
            copy_source_len = 0
        if entry is not None:
            flags, size, mtime_s = entry.v2_data()
            mtime_ns = 0
        else:
            # There are no mtime-cached directories in the Python implementation
            flags = 0
            size = 0
            mtime_s = 0

    The root node is not serialized in the format, but its information is
    written to the docket. Again, see more details on the on-disk format in
    `mercurial/helptext/internals/dirstate-v2`.
    """
    now = int(now)
    data = bytearray()
    root_nodes_start = 0
    root_nodes_len = 0
    nodes_with_entry_count = 0
    nodes_with_copy_source_count = 0

48260:269ff8978086

        ) = NODE.unpack(node_bytes)

        # Parse child nodes of this node recursively
        parse_nodes(map, copy_map, data, children_start, children_count)

        # Don’t yet use sub-second precision if it exists in the file,
        # since other parts of the code still set it to zero.
        mtime_ns = 0
        item = parsers.DirstateItem.from_v2_data(flags, size, mtime_s, mtime_ns)
        if not item.any_tracked:
            continue
        path = slice_with_len(data, path_start, path_len)
        map[path] = item
        if copy_source_start:

            copy_source_len = len(copy)
        else:
            copy_source_start = 0
            copy_source_len = 0
        if entry is not None:
            flags, size, mtime_s, mtime_ns = entry.v2_data()
        else:
            # There are no mtime-cached directories in the Python implementation
            flags = 0
            size = 0
            mtime_s = 0

    The root node is not serialized in the format, but its information is
    written to the docket. Again, see more details on the on-disk format in
    `mercurial/helptext/internals/dirstate-v2`.
    """
    data = bytearray()
    root_nodes_start = 0
    root_nodes_len = 0
    nodes_with_entry_count = 0
    nodes_with_copy_source_count = 0