tiny.sql.DatabaseRoot

1pub const DatabaseRoot = struct {2    allocator: ?Allocator = null,3    format: u32 = format_version,4    feature: u32 = 0,5    entries: []const RelationEntry = &.{},6    conflicts: Hash,7    hash: Hash,89    pub fn init(entries: []const RelationEntry, conflicts: ConflictRoot) DatabaseRoot {10        var builder = Builder.init("sql.database");11        builder.writeU32(format_version);12        builder.writeU32(0);13        builder.hash(conflicts.hash);14        builder.writeU64(entries.len);15        for (entries) |entry| {16            builder.bytes(entry.name);17            builder.hash(entry.hash);18        }19        return .{20            .entries = entries,21            .conflicts = conflicts.hash,22            .hash = builder.finish(),23        };24    }2526    pub fn initSorted(allocator: Allocator, entries: []const RelationEntry, conflicts: ConflictRoot) Allocator.Error!DatabaseRoot {27        const sorted = try allocator.alloc(RelationEntry, entries.len);28        var copied: usize = 0;29        errdefer {30            for (sorted[0..copied]) |entry| allocator.free(entry.name);31            allocator.free(sorted);32        }33        for (entries, sorted) |entry, *target| {34            target.* = .{35                .name = try allocator.dupe(u8, entry.name),36                .hash = entry.hash,37            };38            copied += 1;39        }40        std.mem.sort(RelationEntry, sorted, {}, relationEntryLessThan);41        var root = init(sorted, conflicts);42        root.allocator = allocator;43        return root;44    }4546    pub fn clone(self: *const DatabaseRoot, allocator: Allocator) Allocator.Error!DatabaseRoot {47        return try self.withConflicts(allocator, self.conflicts);48    }4950    pub fn withConflicts(51        self: *const DatabaseRoot,52        allocator: Allocator,53        conflicts: Hash,54    ) Allocator.Error!DatabaseRoot {55        return try initSorted(allocator, self.entries, .{ .hash = conflicts });56    }5758    pub fn deinit(self: *DatabaseRoot) void {59        if (self.allocator) |allocator| {60            for (self.entries) |entry| allocator.free(entry.name);61            allocator.free(self.entries);62        }63        self.* = undefined;64    }65};

1pub const DatabaseRoot = version.DatabaseRoot;