TraceEventCache.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CompMod / System / Diagnostics / TraceEventCache.cs / 1305376 / TraceEventCache.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Threading; 
using System.Security.Permissions;
using System.Text; 
using System.Collections;
using System.Globalization;
using System.Runtime.Versioning;
 
namespace System.Diagnostics {
    public class TraceEventCache { 
 
        private static int processId;
        private static string processName; 

        private long timeStamp = -1;
        private DateTime dateTime = DateTime.MinValue;
        private string stackTrace = null; 

        internal Guid ActivityId { 
            get { return Trace.CorrelationManager.ActivityId; } 
        }
 
        public string Callstack {
            get {
                if (stackTrace == null)
                    stackTrace = Environment.StackTrace; 
                else
                    new EnvironmentPermission(PermissionState.Unrestricted).Demand(); 
 
                return stackTrace;
            } 
        }

        public Stack LogicalOperationStack {
            get { 
                return Trace.CorrelationManager.LogicalOperationStack;
            } 
        } 

        public DateTime DateTime { 
            get {
                if (dateTime == DateTime.MinValue)
                    dateTime = DateTime.UtcNow;
                return dateTime; 
            }
        } 
 
        public int ProcessId {
            [ResourceExposure(ResourceScope.Process)]  // Returns the current process's pid 
            [ResourceConsumption(ResourceScope.Process)]
            get {
                return GetProcessId();
            } 
        }
 
        public string ThreadId { 
            get {
                return GetThreadId().ToString(CultureInfo.InvariantCulture); 
            }
        }

        public long Timestamp { 
            get {
                if (timeStamp == -1) 
                    timeStamp = Stopwatch.GetTimestamp(); 
                return timeStamp ;
            } 
        }

        [ResourceExposure(ResourceScope.None)]
        [ResourceConsumption(ResourceScope.Machine, ResourceScope.Machine)] 
        private static void InitProcessInfo() {
            // Demand unmanaged code permission 
            new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Demand(); 

            if (processName == null) { 
                Process p = Process.GetCurrentProcess();
                try {
                    processId = p.Id;
                    processName = p.ProcessName; 
                }
                finally { 
                    p.Dispose(); 
                }
            } 
        }

        [ResourceExposure(ResourceScope.Process)]
        internal static int GetProcessId() { 
            InitProcessInfo();
            return processId; 
        } 

        internal static string GetProcessName() { 
            InitProcessInfo();
            return processName;
        }
 
        internal static int GetThreadId() {
            return Thread.CurrentThread.ManagedThreadId; 
        } 
    }
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Threading; 
using System.Security.Permissions;
using System.Text; 
using System.Collections;
using System.Globalization;
using System.Runtime.Versioning;
 
namespace System.Diagnostics {
    public class TraceEventCache { 
 
        private static int processId;
        private static string processName; 

        private long timeStamp = -1;
        private DateTime dateTime = DateTime.MinValue;
        private string stackTrace = null; 

        internal Guid ActivityId { 
            get { return Trace.CorrelationManager.ActivityId; } 
        }
 
        public string Callstack {
            get {
                if (stackTrace == null)
                    stackTrace = Environment.StackTrace; 
                else
                    new EnvironmentPermission(PermissionState.Unrestricted).Demand(); 
 
                return stackTrace;
            } 
        }

        public Stack LogicalOperationStack {
            get { 
                return Trace.CorrelationManager.LogicalOperationStack;
            } 
        } 

        public DateTime DateTime { 
            get {
                if (dateTime == DateTime.MinValue)
                    dateTime = DateTime.UtcNow;
                return dateTime; 
            }
        } 
 
        public int ProcessId {
            [ResourceExposure(ResourceScope.Process)]  // Returns the current process's pid 
            [ResourceConsumption(ResourceScope.Process)]
            get {
                return GetProcessId();
            } 
        }
 
        public string ThreadId { 
            get {
                return GetThreadId().ToString(CultureInfo.InvariantCulture); 
            }
        }

        public long Timestamp { 
            get {
                if (timeStamp == -1) 
                    timeStamp = Stopwatch.GetTimestamp(); 
                return timeStamp ;
            } 
        }

        [ResourceExposure(ResourceScope.None)]
        [ResourceConsumption(ResourceScope.Machine, ResourceScope.Machine)] 
        private static void InitProcessInfo() {
            // Demand unmanaged code permission 
            new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Demand(); 

            if (processName == null) { 
                Process p = Process.GetCurrentProcess();
                try {
                    processId = p.Id;
                    processName = p.ProcessName; 
                }
                finally { 
                    p.Dispose(); 
                }
            } 
        }

        [ResourceExposure(ResourceScope.Process)]
        internal static int GetProcessId() { 
            InitProcessInfo();
            return processId; 
        } 

        internal static string GetProcessName() { 
            InitProcessInfo();
            return processName;
        }
 
        internal static int GetThreadId() {
            return Thread.CurrentThread.ManagedThreadId; 
        } 
    }
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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TraceEventCache.cs source code in C# .NET

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