/// <summary>
/// The constructor.
/// </summary>
/// <param name="physicalMemoryLimitPercentage">The cache memory limit, as a percentage of the total system memory.</param>
/// <param name="performanceDataManager">The performance data manager.</param>
internal MemCache(int physicalMemoryLimitPercentage, PerformanceDataManager performanceDataManager)
{
// Sanitize
if (physicalMemoryLimitPercentage <= 0)
{
throw new ArgumentException("cannot be <= 0", "physicalMemoryLimitPercentage");
}
if (performanceDataManager == null)
{
throw new ArgumentNullException("performanceDataManager");
}
var cacheMemoryLimitMegabytes = (int)(((double)physicalMemoryLimitPercentage / 100) * (new ComputerInfo().TotalPhysicalMemory / 1048576)); // bytes / (1024 * 1024) for MB;
_cacheName = "Dache";
_cacheConfig = new NameValueCollection();
_cacheConfig.Add("pollingInterval", "00:00:05");
_cacheConfig.Add("cacheMemoryLimitMegabytes", cacheMemoryLimitMegabytes.ToString());
_cacheConfig.Add("physicalMemoryLimitPercentage", physicalMemoryLimitPercentage.ToString());
_memoryCache = new TrimmingMemoryCache(_cacheName, _cacheConfig);
_internDictionary = new Dictionary<string, string>(100);
_internReferenceDictionary = new Dictionary<string, int>(100);
_performanceDataManager = performanceDataManager;
// Configure per second timer to fire every 1000 ms starting 1000ms from now
_perSecondTimer = new Timer(PerSecondOperations, null, 1000, 1000);
}
/// <summary>
/// The constructor.
/// </summary>
/// <param name="configuration">The configuration to use for the cache host.</param>
public CacheHostEngine(CacheHostConfigurationSection configuration)
{
// Sanitize
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
// Set default logger to file if necessary
if (CustomLoggerLoader.DefaultLogger == null)
{
CustomLoggerLoader.DefaultLogger = new FileLogger();
}
var port = configuration.Port;
var physicalMemoryLimitPercentage = configuration.CacheMemoryLimitPercentage;
var maximumConnections = configuration.MaximumConnections;
// Configure the performance counter data manager
PerformanceDataManager performanceDataManager = null;
try
{
performanceDataManager = new PerformanceCounterPerformanceDataManager(port);
}
catch (InvalidOperationException)
{
// Performance counters aren't installed, so don't use them
performanceDataManager = new PerformanceDataManager();
}
// Determine the MemCache to use
IMemCache memCache = new MemCache(physicalMemoryLimitPercentage, performanceDataManager);
if (configuration.CompressData)
{
memCache = new GZipMemCache(memCache);
}
// Initialize the tag routing table
var tagRoutingTable = new TagRoutingTable();
// Initialize the cache host server
var cacheHostServer = new CacheHostServer(memCache, tagRoutingTable, CustomLoggerLoader.LoadLogger(), configuration.Port,
configuration.MaximumConnections, configuration.MessageBufferSize, configuration.CommunicationTimeoutSeconds * 1000, configuration.MaximumMessageSizeKB * 1024);
// Instantiate the cache host runner
_cacheHostRunner = new CacheHostRunner(cacheHostServer);
}
