flush

common
abstract override fun flush()
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Writes all buffered data to the underlying sink, if one exists. Then that sink is recursively flushed which pushes data as far as possible towards its ultimate destination. Typically that destination is a network socket or file.

BufferedSink b0 = new Buffer();
BufferedSink b1 = Okio.buffer(b0);
BufferedSink b2 = Okio.buffer(b1);

b2.writeUtf8("hello");
assertEquals(5, b2.buffer().size());
assertEquals(0, b1.buffer().size());
assertEquals(0, b0.buffer().size());

b2.flush();
assertEquals(0, b2.buffer().size());
assertEquals(0, b1.buffer().size());
assertEquals(5, b0.buffer().size());
abstract override fun flush()
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