File: redis.go

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golang-github-garyburd-redigo 0.0~git20150901.0.d8dbe4d-2
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// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.

package redis

// Error represents an error returned in a command reply.
type Error string

func (err Error) Error() string { return string(err) }

// Conn represents a connection to a Redis server.
type Conn interface {
	// Close closes the connection.
	Close() error

	// Err returns a non-nil value if the connection is broken. The returned
	// value is either the first non-nil value returned from the underlying
	// network connection or a protocol parsing error. Applications should
	// close broken connections.
	Err() error

	// Do sends a command to the server and returns the received reply.
	Do(commandName string, args ...interface{}) (reply interface{}, err error)

	// Send writes the command to the client's output buffer.
	Send(commandName string, args ...interface{}) error

	// Flush flushes the output buffer to the Redis server.
	Flush() error

	// Receive receives a single reply from the Redis server
	Receive() (reply interface{}, err error)
}