tiny.zen.SiteCatalogCapacity

1pub const Capacity = struct {2    limits: Limits,3    entries_offset: usize,4    entry_bytes: usize,5    text_offset: usize,6    storage_bytes: usize,78    pub fn derive(limits: Limits) DeriveError!Capacity {9        const entries = try placed(model.Entry, 0, limits.max_pages);10        const capacity = Capacity{11            .limits = limits,12            .entries_offset = entries.start,13            .entry_bytes = entries.bytes,14            .text_offset = entries.end,15            .storage_bytes = try added(entries.end, limits.max_text_bytes),16        };17        std.debug.assert(capacity.entries_offset == 0);18        std.debug.assert(capacity.entry_bytes == entries.bytes);19        std.debug.assert(capacity.text_offset == entries.end);20        std.debug.assert(capacity.storage_bytes >= capacity.text_offset);21        std.debug.assert(capacity.storage_bytes - capacity.text_offset == limits.max_text_bytes);22        return capacity;23    }24};

1/// Checked one-region layout derived from `SiteCatalogLimits`.2pub const SiteCatalogCapacity = site_catalog.Capacity;