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|
// Tideland Go Library - Redis Client
//
// Copyright (C) 2009-2017 Frank Mueller / Oldenburg / Germany
//
// All rights reserved. Use of this source code is governed
// by the new BSD license.
package redis
//--------------------
// IMPORTS
//--------------------
import (
"fmt"
"sync"
"time"
)
//--------------------
// DATABASE
//--------------------
// Database provides access to a Redis database.
type Database struct {
mux sync.Mutex
address string
network string
timeout time.Duration
index int
password string
poolsize int
logging bool
monitoring bool
pool *pool
}
// Open opens the connection to a Redis database based on the
// passed options.
func Open(options ...Option) (*Database, error) {
db := &Database{
address: defaultSocket,
network: defaultNetwork,
timeout: defaultTimeout,
index: defaultIndex,
password: defaultPassword,
poolsize: defaultPoolSize,
logging: defaultLogging,
monitoring: defaultMonitoring,
}
for _, option := range options {
if err := option(db); err != nil {
return nil, err
}
}
db.pool = newPool(db)
return db, nil
}
// Options returns the configuration of the database.
func (db *Database) Options() Options {
db.mux.Lock()
defer db.mux.Unlock()
return Options{
Address: db.address,
Network: db.network,
Timeout: db.timeout,
Index: db.index,
Password: db.password,
PoolSize: db.poolsize,
Logging: db.logging,
Monitoring: db.monitoring,
}
}
// Connection returns one of the pooled connections to the Redis
// server. It has to be returned with conn.Return() after usage.
func (db *Database) Connection() (*Connection, error) {
db.mux.Lock()
defer db.mux.Unlock()
return newConnection(db)
}
// Pipeline returns one of the pooled connections to the Redis
// server running in pipeline mode. Calling ppl.Collect()
// collects all results and returns the connection.
func (db *Database) Pipeline() (*Pipeline, error) {
db.mux.Lock()
defer db.mux.Unlock()
return newPipeline(db)
}
// Subscription returns a subscription with a connection to the
// Redis server. It has to be closed with sub.Close() after usage.
func (db *Database) Subscription() (*Subscription, error) {
db.mux.Lock()
defer db.mux.Unlock()
return newSubscription(db)
}
// Close closes the database client.
func (db *Database) Close() error {
db.mux.Lock()
defer db.mux.Unlock()
return db.pool.close()
}
// String implements the Stringer interface and returns address
// plus index.
func (db *Database) String() string {
return fmt.Sprintf("%s:%d", db.address, db.index)
}
// EOF
|
