func io.CopyBuffer

5 uses

	io (current package)
		io.go#L399: func CopyBuffer(dst Writer, src Reader, buf []byte) (written int64, err error) {

	mime/multipart
		formdata.go#L191: 			remainingSize, err := io.CopyBuffer(writerOnly{file}, p, copyBuf)

	net/http
		server.go#L588: 		return io.CopyBuffer(writerOnly{w}, src, buf)
		server.go#L596: 		n0, err := io.CopyBuffer(writerOnly{w}, io.LimitReader(src, sniffLen), buf)
		server.go#L614: 	n0, err := io.CopyBuffer(writerOnly{w}, src, buf)