Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Configuration/CacheSection.cs

@@ -0,0 +1,193 @@
+//------------------------------------------------------------------------------
+// <copyright file="CacheSection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration {
+    using System;
+    using System.Xml;
+    using System.Configuration;
+    using System.Collections.Specialized;
+    using System.Collections;
+    using System.IO;
+    using System.Text;
+    using System.Web.Caching;
+    using System.ComponentModel;
+    using System.Security.Permissions;
+
+    /* 
+            <!--
+            cache Attributes:
+              cacheAPIEnabled="[true|false]" - Enable or disable the user Cache API
+              disableMemoryCollection="[true|false]" - Enable or disable the cache memory collection
+              disableExpiration="[true|false]" - Enable or disable the expiration of items from the cache
+              privateBytesLimit="number" - Represents maximum private bytes (in bytes) allowed. If it's zero, Cache will use an auto-generated limit. Cache will collect memory when the private bytes is near the limit. This works on top of other memory indexes monitored by Cache.
+              percentagePhysicalMemoryUsedLimit="number" - Represents percentage of physical memory process allowed. Cache will collect memory when the private bytes is near the limit. This works on top of other memory indexes monitored by Cache.
+              privateBytesPollTime="timespan" - How often we poll the process memory by calling NtQuerySystemInformation. Default is 2 min.
+            -->
+            <cache cacheAPIEnabled="true" />
+      */
+
+    public sealed class CacheSection : ConfigurationSection {
+        internal static TimeSpan DefaultPrivateBytesPollTime = new TimeSpan(0, 2, 0);
+
+        private static ConfigurationPropertyCollection _properties;
+#if NOT_UNTIL_LATER
+        private static readonly ConfigurationProperty   _propCacheAPIEnabled;
+        private static readonly ConfigurationProperty   _propDisableDependencies;
+#endif
+        private static readonly ConfigurationProperty _propDisableMemoryCollection;
+        private static readonly ConfigurationProperty _propDisableExpiration;
+
+        private static readonly ConfigurationProperty _propPrivateBytesLimit;
+        private static readonly ConfigurationProperty _propPercentagePhysicalMemoryUsedLimit;
+        private static readonly ConfigurationProperty _propPrivateBytesPollTime;
+
+
+        static CacheSection() {
+            // Property initialization
+#if NOT_UNTIL_LATER
+            _propCacheAPIEnabled = new ConfigurationProperty("cacheAPIEnabled", typeof(bool), true, ConfigurationPropertyOptions.None);
+            _propDisableDependencies = new ConfigurationProperty("disableDependencies", typeof(bool), false, ConfigurationPropertyOptions.None);
+#endif
+
+            _propDisableMemoryCollection = 
+                new ConfigurationProperty("disableMemoryCollection", 
+                                            typeof(bool), 
+                                            false, 
+                                            ConfigurationPropertyOptions.None);
+            _propDisableExpiration = 
+                new ConfigurationProperty("disableExpiration", 
+                                            typeof(bool), 
+                                            false, 
+                                            ConfigurationPropertyOptions.None);
+            _propPrivateBytesLimit = 
+                new ConfigurationProperty("privateBytesLimit",
+                                            typeof(long),
+                                            (long)0,
+                                            null,
+                                            new LongValidator(0, long.MaxValue),
+                                            ConfigurationPropertyOptions.None);
+            _propPercentagePhysicalMemoryUsedLimit =
+                new ConfigurationProperty("percentagePhysicalMemoryUsedLimit",
+                                            typeof(int),
+                                            (int)0,
+                                            null,
+                                            new IntegerValidator(0, 100),
+                                            ConfigurationPropertyOptions.None);
+            _propPrivateBytesPollTime =
+                new ConfigurationProperty("privateBytesPollTime",
+                                            typeof(TimeSpan),
+                                            DefaultPrivateBytesPollTime,
+                                            StdValidatorsAndConverters.InfiniteTimeSpanConverter,
+                                            StdValidatorsAndConverters.PositiveTimeSpanValidator,
+                                            ConfigurationPropertyOptions.None);
+
+            _properties = new ConfigurationPropertyCollection();
+
+#if NOT_UNTIL_LATER
+            _properties.Add(_propCacheAPIEnabled);
+            _properties.Add(_propDisableDependencies);
+#endif
+
+            _properties.Add(_propDisableMemoryCollection);
+            _properties.Add(_propDisableExpiration);
+            _properties.Add(_propPrivateBytesLimit);
+            _properties.Add(_propPercentagePhysicalMemoryUsedLimit);
+            _properties.Add(_propPrivateBytesPollTime);
+        }
+
+        public CacheSection() {
+        }
+
+#if NOT_UNTIL_LATER
+        [ConfigurationProperty("cacheAPIEnabled", DefaultValue = true)]
+        public bool CacheAPIEnabled
+        {
+            get
+            {
+                return (bool)base[_propCacheAPIEnabled];
+            }
+            set
+            {
+                base[_propCacheAPIEnabled] = value;
+            }
+        }
+#endif
+        [ConfigurationProperty("disableMemoryCollection", DefaultValue = false)]
+        public bool DisableMemoryCollection {
+            get {
+                return (bool)base[_propDisableMemoryCollection];
+            }
+            set {
+                base[_propDisableMemoryCollection] = value;
+            }
+        }
+
+        [ConfigurationProperty("disableExpiration", DefaultValue = false)]
+        public bool DisableExpiration {
+            get {
+                return (bool)base[_propDisableExpiration];
+            }
+            set {
+                base[_propDisableExpiration] = value;
+            }
+        }
+
+#if NOT_UNTIL_LATER
+        [ConfigurationProperty("disableDependencies", DefaultValue = false)]
+        public bool DisableDependencies
+        {
+            get
+            {
+                return (bool)base[_propDisableDependencies];
+            }
+            set
+            {
+                base[_propDisableDependencies] = value;
+            }
+        }
+#endif
+
+        [ConfigurationProperty("privateBytesLimit", DefaultValue = (long)0)]
+        [LongValidator(MinValue = 0)]
+        public long PrivateBytesLimit {
+            get {
+                return (long)base[_propPrivateBytesLimit];
+            }
+            set {
+                base[_propPrivateBytesLimit] = value;
+            }
+        }
+
+        [ConfigurationProperty("percentagePhysicalMemoryUsedLimit", DefaultValue = (int)0)]
+        [IntegerValidator(MinValue = 0, MaxValue = 100)]
+        public int PercentagePhysicalMemoryUsedLimit {
+            get {
+                return (int)base[_propPercentagePhysicalMemoryUsedLimit];
+            }
+            set {
+                base[_propPercentagePhysicalMemoryUsedLimit] = value;
+            }
+        }
+
+
+        protected override ConfigurationPropertyCollection Properties {
+            get {
+                return _properties;
+            }
+        }
+
+        [ConfigurationProperty("privateBytesPollTime", DefaultValue = "00:02:00")]
+        [TypeConverter(typeof(InfiniteTimeSpanConverter))]
+        public TimeSpan PrivateBytesPollTime {
+            get {
+                return (TimeSpan)base[_propPrivateBytesPollTime];
+            }
+            set {
+                base[_propPrivateBytesPollTime] = value;
+            }
+        }
+    }
+}