ServiceThrottlingBehavior.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Description / ServiceThrottlingBehavior.cs / 1 / ServiceThrottlingBehavior.cs
                        

                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel.Description
{ 
    using System.Collections.Generic;
    using System.ServiceModel.Channels; 
    using System.ServiceModel.Dispatcher; 
    using System.ServiceModel;
    using System.Xml; 
    using System.Runtime.Serialization;
    using System.Collections.ObjectModel;

    public class ServiceThrottlingBehavior : IServiceBehavior 
    {
        int calls = ServiceThrottle.DefaultMaxConcurrentCalls; 
        int sessions = ServiceThrottle.DefaultMaxConcurrentSessions; 
        int instances = Int32.MaxValue;
        bool maxInstanceSetExplicitly; 

        public int MaxConcurrentCalls
        {
            get { return this.calls; } 
            set
            { 
                if (value <= 0) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxThrottleLimitMustBeGreaterThanZero0)));
 
                this.calls = value;
            }
        }
 
        public int MaxConcurrentSessions
        { 
            get { return this.sessions; } 
            set
            { 
                if (value <= 0)
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxThrottleLimitMustBeGreaterThanZero0)));

                this.sessions = value; 
            }
        } 
 
        public int MaxConcurrentInstances
        { 
            get
            {
                if (this.maxInstanceSetExplicitly)
                { 
                    return this.instances;
                } 
                else 
                {
                    //For V1: Default MaxConcurrentInstances should not enforce any throttle 
                    //But still it should not be set to Int32.MAX;
                    //So compute default MaxInstances to be large enough to support MaxCalls & MaxSessions.
                    this.instances = this.calls + this.sessions;
 
                    if (this.instances < 0)
                    { 
                        this.instances = Int32.MaxValue; 
                    }
                } 
                return this.instances;
            }
            set
            { 
                if (value <= 0)
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxThrottleLimitMustBeGreaterThanZero0))); 
 
                this.instances = value;
                this.maxInstanceSetExplicitly = true; 
            }
        }

        void IServiceBehavior.Validate(ServiceDescription description, ServiceHostBase serviceHostBase) 
        {
        } 
 
        void IServiceBehavior.AddBindingParameters(ServiceDescription description, ServiceHostBase serviceHostBase, Collection endpoints, BindingParameterCollection parameters)
        { 
        }

        void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription description, ServiceHostBase serviceHostBase)
        { 
            if (serviceHostBase == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("serviceHostBase")); 
 
            ServiceThrottle serviceThrottle = serviceHostBase.ServiceThrottle;
            serviceThrottle.MaxConcurrentCalls = this.calls; 
            serviceThrottle.MaxConcurrentSessions = this.sessions;
            serviceThrottle.MaxConcurrentInstances = this.MaxConcurrentInstances;

            for (int i=0; i

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