Initial project import

tools/v/vlib/io/writer.v

@@ -0,0 +1,14 @@
+module io
+
+// Writer is the interface that wraps the `write` method, which
+// writes `buf.len` bytes to the underlying data stream.
+pub interface Writer {
+mut:
+	write(buf []u8) !int
+}
+
+// RandomWriter is the interface that wraps the `write_to` method,
+// which writes `buf.len` bytes to the underlying data stream at a random `pos`.
+pub interface RandomWriter {
+	write_to(pos u64, buf []u8) !int
+}