Reduce allocations, the message takes ownership of the bytes read from

the stream and is responsible for deallocating, rather than copying them
to their own storage.

1 files changed, 4 insertions, 5 deletions

diff --git a/src/proto/ready_for_query.zig b/src/proto/ready_for_query.zig
index ef99e60..6bf25f9 100644
--- a/src/proto/ready_for_query.zig
+++ b/src/proto/ready_for_query.zig
@@ -14,10 +14,10 @@ const TransactionStatus = enum(u8) {
 
 transaction_status: TransactionStatus,
 
-pub fn read(allocator: std.mem.Allocator, b: []const u8) !ReadyForQuery {
-    _ = allocator;
-    if (b.len != 1) return ProtocolError.InvalidMessageLength;
-    return .{ .transaction_status = enum_from_int(TransactionStatus, b[0]) orelse return ProtocolError.InvalidTransactionStatus };
+pub fn read(a: std.mem.Allocator, buf: []const u8) !ReadyForQuery {
+    defer a.free(buf);
+    if (buf.len != 1) return ProtocolError.InvalidMessageLength;
+    return .{ .transaction_status = enum_from_int(TransactionStatus, buf[0]) orelse return ProtocolError.InvalidTransactionStatus };
 }
 pub fn write(self: ReadyForQuery, allocator: std.mem.Allocator, stream_writer: anytype) !void {
     _ = allocator;
@@ -44,7 +44,6 @@ test "round trip" {
     try std.testing.expectEqual(Tag, tag);
     const len = try reader.readIntBig(u32);
     const buf = try allocator.alloc(u8, len - 4);
-    defer allocator.free(buf);
     try reader.readNoEof(buf);
     var sm2 = try ReadyForQuery.read(allocator, buf);
     defer sm2.deinit(allocator);