Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/ProcessModelInfo.cs

@@ -0,0 +1,118 @@
+//------------------------------------------------------------------------------
+// <copyright file="ProcessModelInfo.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+/*
+ * ProcessInfo class
+ */
+namespace System.Web {
+    using System.Runtime.Serialization.Formatters;
+    using System.Threading;
+    using System.Security.Permissions;
+
+    public class ProcessModelInfo {
+
+        [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.High)]
+        static public ProcessInfo    GetCurrentProcessInfo() {
+            HttpContext context = HttpContext.Current;
+            if (context == null || context.WorkerRequest == null || 
+                !(context.WorkerRequest is System.Web.Hosting.ISAPIWorkerRequestOutOfProc))
+            {
+                throw new HttpException(SR.GetString(SR.Process_information_not_available));                
+            }
+
+            int     dwReqExecuted = 0;
+            int     dwReqExecuting = 0;
+            long    tmCreateTime = 0;
+            int     pid = 0;
+            int     mem = 0;
+
+            int iRet = UnsafeNativeMethods.PMGetCurrentProcessInfo (
+                    ref dwReqExecuted, ref dwReqExecuting, ref mem, 
+                    ref tmCreateTime, ref pid);
+
+            if (iRet < 0)
+                throw new HttpException(SR.GetString(SR.Process_information_not_available));
+
+            DateTime startTime = DateTime.FromFileTime(tmCreateTime);
+            TimeSpan age = DateTime.Now.Subtract(startTime);
+
+            return new ProcessInfo(startTime, age, pid, dwReqExecuted, 
+                                   ProcessStatus.Alive, ProcessShutdownReason.None, mem);
+        }
+
+
+        [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.High)]
+        static public ProcessInfo[]  GetHistory(int numRecords) {
+            HttpContext context = HttpContext.Current;
+            if (context == null || context.WorkerRequest == null || 
+                !(context.WorkerRequest is System.Web.Hosting.ISAPIWorkerRequestOutOfProc))
+            {
+                throw new HttpException(SR.GetString(SR.Process_information_not_available));                
+            }
+
+            if (numRecords < 1)
+                return null;
+
+            int [] dwPID   = new int [numRecords];
+            int [] dwExed  = new int [numRecords];
+            int [] dwExei  = new int [numRecords];
+            int [] dwPend  = new int [numRecords];
+            int [] dwReas  = new int [numRecords];
+            long [] tmCrea = new long [numRecords];
+            long [] tmDeat = new long [numRecords];
+            int []  mem    = new int [numRecords];
+
+            int iRows = UnsafeNativeMethods.PMGetHistoryTable (numRecords, dwPID, dwExed, dwPend, dwExei, dwReas, mem, tmCrea, tmDeat);
+            if (iRows < 0)
+                throw new HttpException(SR.GetString(SR.Process_information_not_available));
+
+            ProcessInfo[] ret = new ProcessInfo[iRows];
+            for (int iter=0; iter<iRows; iter++) {
+
+                DateTime startTime = DateTime.FromFileTime(tmCrea[iter]);
+                TimeSpan age       = DateTime.Now.Subtract(startTime);
+
+                ProcessStatus          status = ProcessStatus.Alive;
+                ProcessShutdownReason  rea    = ProcessShutdownReason.None;
+
+                if (dwReas[iter] != 0) {
+                    if (tmDeat[iter] > 0)
+                        age = DateTime.FromFileTime(tmDeat[iter]).Subtract(startTime);
+
+                    if ((dwReas[iter] & 0x0004) != 0)
+                        status = ProcessStatus.Terminated;
+                    else if ((dwReas[iter] & 0x0002) != 0)
+                        status = ProcessStatus.ShutDown;
+                    else
+                        status = ProcessStatus.ShuttingDown;
+                    
+                    if ((0x0040 & dwReas[iter]) != 0)
+                        rea = ProcessShutdownReason.IdleTimeout;
+                    else if ((0x0080 & dwReas[iter]) != 0)
+                        rea = ProcessShutdownReason.RequestsLimit;
+                    else if ((0x0100 & dwReas[iter]) != 0)
+                        rea = ProcessShutdownReason.RequestQueueLimit;
+                    else if ((0x0020 & dwReas[iter]) != 0)
+                        rea = ProcessShutdownReason.Timeout;
+                    else if ((0x0200 & dwReas[iter]) != 0)
+                        rea = ProcessShutdownReason.MemoryLimitExceeded;
+                    else if ((0x0400 & dwReas[iter]) != 0)
+                        rea = ProcessShutdownReason.PingFailed;
+                    else if ((0x0800 & dwReas[iter]) != 0)
+                        rea = ProcessShutdownReason.DeadlockSuspected;
+                    else
+                        rea = ProcessShutdownReason.Unexpected;
+                }
+
+                ret[iter] = new ProcessInfo(startTime, age, dwPID[iter], dwExed[iter], status, rea, mem[iter]);
+            }
+
+            return ret;
+        }
+    }
+
+
+}