/// <summary>
/// Returns a ReadOnly client using the hosts defined in ReadOnlyHosts.
/// </summary>
/// <returns></returns>
public virtual IRedisClient GetReadOnlyClient()
{
var nextHost = ReadOnlyHosts[readOnlyHostsIndex++ % ReadOnlyHosts.Count];
var client = RedisClientFactory.CreateRedisClient(
nextHost.Host, nextHost.Port);
if (this.ConnectTimeout != null)
{
client.ConnectTimeout = this.ConnectTimeout.Value;
}
//Set database to userSpecified if different
if (Db != RedisNativeClient.DefaultDb)
{
client.ChangeDb(Db);
}
if (nextHost.RequiresAuth)
{
client.Password = nextHost.Password;
}
client.NamespacePrefix = NamespacePrefix;
client.ConnectionFilter = ConnectionFilter;
return(client);
}
/// <summary>
/// Called within a lock
/// </summary>
/// <returns></returns>
private RedisClient GetInActiveReadClient()
{
for (var i = 0; i < readClients.Length; i++)
{
var nextIndex = (ReadPoolIndex + i) % readClients.Length;
//Initialize if not exists
var existingClient = readClients[nextIndex];
if (existingClient == null ||
existingClient.HadExceptions)
{
if (existingClient != null)
{
existingClient.DisposeConnection();
}
var nextHost = ReadOnlyHosts[nextIndex % ReadOnlyHosts.Count];
var client = RedisClientFactory.CreateRedisClient(
nextHost.Host, nextHost.Port);
client.ClientManager = this;
readClients[nextIndex] = client;
return(client);
}
//look for free one
if (!readClients[nextIndex].Active)
{
return(readClients[nextIndex]);
}
}
return(null);
}
/// <summary>
/// Returns a Read/Write client (The default) using the hosts defined in ReadWriteHosts
/// </summary>
/// <returns></returns>
public IRedisClient GetClient()
{
var nextHost = ReadWriteHosts[readWriteHostsIndex++ % ReadWriteHosts.Count];
var client = RedisClientFactory.CreateRedisClient(
nextHost.Host, nextHost.Port);
//Set database to userSpecified if different
if (Db != RedisNativeClient.DefaultDb)
{
client.Db = Db;
}
return(client);
}
/// <summary>
/// Called within a lock
/// </summary>
/// <returns></returns>
private RedisClient GetInActiveWriteClient()
{
var desiredIndex = WritePoolIndex % writeClients.Length;
//this will loop through all hosts in readClients once even though there are 2 for loops
//both loops are used to try to get the prefered host according to the round robin algorithm
for (int x = 0; x < ReadWriteHosts.Count; x++)
{
var nextHostIndex = (desiredIndex + x) % ReadWriteHosts.Count;
var nextHost = ReadWriteHosts[nextHostIndex];
for (var i = nextHostIndex; i < writeClients.Length; i += ReadWriteHosts.Count)
{
if (writeClients[i] != null && !writeClients[i].Active && !writeClients[i].HadExceptions)
{
return(writeClients[i]);
}
else if (writeClients[i] == null || writeClients[i].HadExceptions)
{
if (writeClients[i] != null)
{
writeClients[i].DisposeConnection();
}
var client = RedisClientFactory.CreateRedisClient(nextHost.Host, nextHost.Port);
if (nextHost.RequiresAuth)
{
client.Password = nextHost.Password;
}
client.Id = RedisClientCounter++;
client.ClientManager = this;
client.NamespacePrefix = NamespacePrefix;
client.ConnectionFilter = ConnectionFilter;
writeClients[i] = client;
return(client);
}
}
}
return(null);
}
