Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Data / System / Data / ProviderBase / DbConnectionPoolCounters.cs / 1 / DbConnectionPoolCounters.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// [....]
//-----------------------------------------------------------------------------
namespace System.Data.ProviderBase {
using System;
using System.Collections;
using System.Data.Common;
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
using System.Runtime.ConstrainedExecution;
using System.Security;
using System.Security.Permissions;
using System.Security.Principal;
internal abstract class DbConnectionPoolCounters {
private static class CreationData {
#if CREATEONLY
internal const int NumberOfCounters = 14;
#endif
static internal readonly CounterCreationData HardConnectsPerSecond = new CounterCreationData(
"HardConnectsPerSecond",
"The number of actual connections per second that are being made to servers",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData HardDisconnectsPerSecond = new CounterCreationData(
"HardDisconnectsPerSecond",
"The number of actual disconnects per second that are being made to servers",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData SoftConnectsPerSecond = new CounterCreationData(
"SoftConnectsPerSecond",
"The number of connections we get from the pool per second",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData SoftDisconnectsPerSecond = new CounterCreationData(
"SoftDisconnectsPerSecond",
"The number of connections we return to the pool per second",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData NumberOfNonPooledConnections = new CounterCreationData(
"NumberOfNonPooledConnections",
"The number of connections that are not using connection pooling",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfPooledConnections = new CounterCreationData(
"NumberOfPooledConnections",
"The number of connections that are managed by the connection pooler",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfActiveConnectionPoolGroups = new CounterCreationData(
"NumberOfActiveConnectionPoolGroups",
"The number of unique connection strings",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfInactiveConnectionPoolGroups = new CounterCreationData(
"NumberOfInactiveConnectionPoolGroups",
"The number of unique connection strings waiting for pruning",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfActiveConnectionPools = new CounterCreationData(
"NumberOfActiveConnectionPools",
"The number of connection pools",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfInactiveConnectionPools = new CounterCreationData(
"NumberOfInactiveConnectionPools",
"The number of connection pools",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfActiveConnections = new CounterCreationData(
"NumberOfActiveConnections",
"The number of connections currently in-use",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfFreeConnections = new CounterCreationData(
"NumberOfFreeConnections",
"The number of connections currently available for use",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfStasisConnections = new CounterCreationData(
"NumberOfStasisConnections",
"The number of connections currently waiting to be made ready for use",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfReclaimedConnections = new CounterCreationData(
"NumberOfReclaimedConnections",
"The number of connections we reclaim from GC'd external connections",
PerformanceCounterType.NumberOfItems32);
};
sealed internal class Counter {
private PerformanceCounter _instance;
internal Counter (string categoryName, string instanceName, string counterName, PerformanceCounterType counterType) {
if (ADP.IsPlatformNT5) {
try {
if (!ADP.IsEmpty(categoryName) && !ADP.IsEmpty(instanceName)) {
PerformanceCounter instance = new PerformanceCounter();
instance.CategoryName = categoryName;
instance.CounterName = counterName;
instance.InstanceName = instanceName;
instance.InstanceLifetime = PerformanceCounterInstanceLifetime.Process;
instance.ReadOnly = false;
instance.RawValue = 0; // make sure we start out at zero
_instance = instance;
}
}
catch (InvalidOperationException e) {
ADP.TraceExceptionWithoutRethrow(e);
//
}
}
}
internal void Decrement() {
PerformanceCounter instance = _instance;
if (null != instance) {
instance.Decrement();
}
}
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
internal void Dispose () { //
PerformanceCounter instance = _instance;
_instance = null;
if (null != instance) {
instance.RemoveInstance();
// should we be calling instance.Close?
// if we do will it exacerbate the Dispose vs. Decrement race condition
//instance.Close();
}
}
internal void Increment() {
PerformanceCounter instance = _instance;
if (null != instance) {
instance.Increment();
}
}
};
internal readonly Counter HardConnectsPerSecond;
internal readonly Counter HardDisconnectsPerSecond;
internal readonly Counter SoftConnectsPerSecond;
internal readonly Counter SoftDisconnectsPerSecond;
internal readonly Counter NumberOfNonPooledConnections;
internal readonly Counter NumberOfPooledConnections;
internal readonly Counter NumberOfActiveConnectionPoolGroups;
internal readonly Counter NumberOfInactiveConnectionPoolGroups;
internal readonly Counter NumberOfActiveConnectionPools;
internal readonly Counter NumberOfInactiveConnectionPools;
internal readonly Counter NumberOfActiveConnections;
internal readonly Counter NumberOfFreeConnections;
internal readonly Counter NumberOfStasisConnections;
internal readonly Counter NumberOfReclaimedConnections;
protected DbConnectionPoolCounters() : this(null, null) {
}
protected DbConnectionPoolCounters(string categoryName, string categoryHelp) {
AppDomain.CurrentDomain.DomainUnload += new EventHandler(this.UnloadEventHandler);
AppDomain.CurrentDomain.ProcessExit += new EventHandler(this.ExitEventHandler);
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(this.ExceptionEventHandler);
string instanceName = null;
if (!ADP.IsEmpty(categoryName)) {
if (ADP.IsPlatformNT5) {
#if CREATEONLY
if (!PerformanceCounterCategory.Exists(categoryName)) {
CreateCounters(categoryName, categoryHelp);
}
#endif //CREATEONLY
instanceName = GetInstanceName();
}
}
// level 0-3: hard connects/disconnects, plus basic pool/pool entry statistics
string basicCategoryName = categoryName;
HardConnectsPerSecond = new Counter(basicCategoryName, instanceName, CreationData.HardConnectsPerSecond.CounterName, CreationData.HardConnectsPerSecond.CounterType);
HardDisconnectsPerSecond = new Counter(basicCategoryName, instanceName, CreationData.HardDisconnectsPerSecond.CounterName, CreationData.HardDisconnectsPerSecond.CounterType);
NumberOfNonPooledConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfNonPooledConnections.CounterName, CreationData.NumberOfNonPooledConnections.CounterType);
NumberOfPooledConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfPooledConnections.CounterName, CreationData.NumberOfPooledConnections.CounterType);
NumberOfActiveConnectionPoolGroups = new Counter(basicCategoryName, instanceName, CreationData.NumberOfActiveConnectionPoolGroups.CounterName, CreationData.NumberOfActiveConnectionPoolGroups.CounterType);
NumberOfInactiveConnectionPoolGroups = new Counter(basicCategoryName, instanceName, CreationData.NumberOfInactiveConnectionPoolGroups.CounterName, CreationData.NumberOfInactiveConnectionPoolGroups.CounterType);
NumberOfActiveConnectionPools = new Counter(basicCategoryName, instanceName, CreationData.NumberOfActiveConnectionPools.CounterName, CreationData.NumberOfActiveConnectionPools.CounterType);
NumberOfInactiveConnectionPools = new Counter(basicCategoryName, instanceName, CreationData.NumberOfInactiveConnectionPools.CounterName, CreationData.NumberOfInactiveConnectionPools.CounterType);
NumberOfStasisConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfStasisConnections.CounterName, CreationData.NumberOfStasisConnections.CounterType);
NumberOfReclaimedConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfReclaimedConnections.CounterName, CreationData.NumberOfReclaimedConnections.CounterType);
// level 4: expensive stuff
string verboseCategoryName = null;
if (!ADP.IsEmpty(categoryName)) {
// don't load TraceSwitch if no categoryName so that Odbc/OleDb have a chance of not loading TraceSwitch
// which are also used by System.Diagnostics.PerformanceCounter.ctor & System.Transactions.get_Current
TraceSwitch perfCtrSwitch = new TraceSwitch("ConnectionPoolPerformanceCounterDetail", "level of detail to track with connection pool performance counters");
if (TraceLevel.Verbose == perfCtrSwitch.Level) {
verboseCategoryName = categoryName;
}
}
SoftConnectsPerSecond = new Counter(verboseCategoryName, instanceName, CreationData.SoftConnectsPerSecond.CounterName, CreationData.SoftConnectsPerSecond.CounterType);
SoftDisconnectsPerSecond = new Counter(verboseCategoryName, instanceName, CreationData.SoftDisconnectsPerSecond.CounterName, CreationData.SoftDisconnectsPerSecond.CounterType);
NumberOfActiveConnections = new Counter(verboseCategoryName, instanceName, CreationData.NumberOfActiveConnections.CounterName, CreationData.NumberOfActiveConnections.CounterType);
NumberOfFreeConnections = new Counter(verboseCategoryName, instanceName, CreationData.NumberOfFreeConnections.CounterName, CreationData.NumberOfFreeConnections.CounterType);
}
[FileIOPermission(SecurityAction.Assert, Unrestricted=true)]
private string GetAssemblyName() {
string result = null;
// First try GetEntryAssembly name, then AppDomain.FriendlyName.
Assembly assembly = Assembly.GetEntryAssembly();
if (null != assembly) {
AssemblyName name = assembly.GetName();
if (name != null) {
result = name.Name; // MDAC 73469
}
}
return result;
}
private string GetInstanceName() {
string result = null;
string instanceName = GetAssemblyName(); // instance perfcounter name
if (ADP.IsEmpty(instanceName)) {
AppDomain appDomain = AppDomain.CurrentDomain;
if (null != appDomain) {
instanceName = appDomain.FriendlyName;
}
}
int pid = SafeNativeMethods.GetCurrentProcessId();
// SQLBUDT #366157 -there are several characters which have special meaning
// to PERFMON. They recommend that we translate them as shown below, to
// prevent problems.
result = String.Format((IFormatProvider)null, "{0}[{1}]", instanceName, pid);
result = result.Replace('(','[').Replace(')',']').Replace('#','_').Replace('/','_').Replace('\\','_');
return result;
}
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
public void Dispose() {
// ExceptionEventHandler with IsTerminiating may be called before
// the Connection Close is called or the variables are initialized
SafeDispose(HardConnectsPerSecond);
SafeDispose(HardDisconnectsPerSecond);
SafeDispose(SoftConnectsPerSecond);
SafeDispose(SoftDisconnectsPerSecond);
SafeDispose(NumberOfNonPooledConnections);
SafeDispose(NumberOfPooledConnections);
SafeDispose(NumberOfActiveConnectionPoolGroups);
SafeDispose(NumberOfInactiveConnectionPoolGroups);
SafeDispose(NumberOfActiveConnectionPools);
SafeDispose(NumberOfActiveConnections);
SafeDispose(NumberOfFreeConnections);
SafeDispose(NumberOfStasisConnections);
SafeDispose(NumberOfReclaimedConnections);
}
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
private void SafeDispose(Counter counter) { // WebData 103603
if (null != counter) {
counter.Dispose();
}
}
[PrePrepareMethod]
void ExceptionEventHandler (object sender, UnhandledExceptionEventArgs e) {
if ((null != e) && e.IsTerminating) {
Dispose();
}
}
[PrePrepareMethod]
void ExitEventHandler (object sender, EventArgs e) {
Dispose();
}
[PrePrepareMethod]
void UnloadEventHandler (object sender, EventArgs e) {
Dispose();
}
#if CREATEONLY
private void CreateCounters(string categoryName, string categoryHelp) {
int i = 0;
CounterCreationData[] myCounterCreationData = new CounterCreationData[CreationData.NumberOfCounters];
myCounterCreationData[i++] = CreationData.HardConnectsPerSecond;
myCounterCreationData[i++] = CreationData.HardDisconnectsPerSecond;
myCounterCreationData[i++] = CreationData.SoftConnectsPerSecond;
myCounterCreationData[i++] = CreationData.SoftDisconnectsPerSecond;
myCounterCreationData[i++] = CreationData.NumberOfNonPooledConnections;
myCounterCreationData[i++] = CreationData.NumberOfPooledConnections;
myCounterCreationData[i++] = CreationData.NumberOfActiveConnectionPoolGroups;
myCounterCreationData[i++] = CreationData.NumberOfInactiveConnectionPoolGroups;
myCounterCreationData[i++] = CreationData.NumberOfActiveConnectionPools;
myCounterCreationData[i++] = CreationData.NumberOfInactiveConnectionPools;
myCounterCreationData[i++] = CreationData.NumberOfActiveConnections;
myCounterCreationData[i++] = CreationData.NumberOfFreeConnections;
myCounterCreationData[i++] = CreationData.NumberOfStasisConnections;
myCounterCreationData[i++] = CreationData.NumberOfReclaimedConnections;
CounterCreationDataCollection myCounterCollection = new CounterCreationDataCollection(myCounterCreationData);
CreateCountersSafe(categoryName, categoryHelp, myCounterCollection);
for(i = 0; i < myCounterCollection.Count; i++) {
myCounterCollection.Remove(myCounterCreationData[i]);
}
}
private void CreateCountersSafe(string categoryName, string categoryHelp, CounterCreationDataCollection myCounterCollection) {
(new PerformanceCounterPermission(PerformanceCounterPermissionAccess.Instrument, ".", categoryName)).Assert();
try {
PerformanceCounterCategory.Create(categoryName, categoryHelp, myCounterCollection);
}
finally {
PerformanceCounterPermission.RevertAssert();
}
}
#endif //CREATEONLY
}
sealed internal class DbConnectionPoolCountersNoCounters : DbConnectionPoolCounters {
public static readonly DbConnectionPoolCountersNoCounters SingletonInstance = new DbConnectionPoolCountersNoCounters();
private DbConnectionPoolCountersNoCounters() : base () {
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// [....]
//-----------------------------------------------------------------------------
namespace System.Data.ProviderBase {
using System;
using System.Collections;
using System.Data.Common;
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
using System.Runtime.ConstrainedExecution;
using System.Security;
using System.Security.Permissions;
using System.Security.Principal;
internal abstract class DbConnectionPoolCounters {
private static class CreationData {
#if CREATEONLY
internal const int NumberOfCounters = 14;
#endif
static internal readonly CounterCreationData HardConnectsPerSecond = new CounterCreationData(
"HardConnectsPerSecond",
"The number of actual connections per second that are being made to servers",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData HardDisconnectsPerSecond = new CounterCreationData(
"HardDisconnectsPerSecond",
"The number of actual disconnects per second that are being made to servers",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData SoftConnectsPerSecond = new CounterCreationData(
"SoftConnectsPerSecond",
"The number of connections we get from the pool per second",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData SoftDisconnectsPerSecond = new CounterCreationData(
"SoftDisconnectsPerSecond",
"The number of connections we return to the pool per second",
PerformanceCounterType.RateOfCountsPerSecond32);
static internal readonly CounterCreationData NumberOfNonPooledConnections = new CounterCreationData(
"NumberOfNonPooledConnections",
"The number of connections that are not using connection pooling",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfPooledConnections = new CounterCreationData(
"NumberOfPooledConnections",
"The number of connections that are managed by the connection pooler",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfActiveConnectionPoolGroups = new CounterCreationData(
"NumberOfActiveConnectionPoolGroups",
"The number of unique connection strings",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfInactiveConnectionPoolGroups = new CounterCreationData(
"NumberOfInactiveConnectionPoolGroups",
"The number of unique connection strings waiting for pruning",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfActiveConnectionPools = new CounterCreationData(
"NumberOfActiveConnectionPools",
"The number of connection pools",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfInactiveConnectionPools = new CounterCreationData(
"NumberOfInactiveConnectionPools",
"The number of connection pools",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfActiveConnections = new CounterCreationData(
"NumberOfActiveConnections",
"The number of connections currently in-use",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfFreeConnections = new CounterCreationData(
"NumberOfFreeConnections",
"The number of connections currently available for use",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfStasisConnections = new CounterCreationData(
"NumberOfStasisConnections",
"The number of connections currently waiting to be made ready for use",
PerformanceCounterType.NumberOfItems32);
static internal readonly CounterCreationData NumberOfReclaimedConnections = new CounterCreationData(
"NumberOfReclaimedConnections",
"The number of connections we reclaim from GC'd external connections",
PerformanceCounterType.NumberOfItems32);
};
sealed internal class Counter {
private PerformanceCounter _instance;
internal Counter (string categoryName, string instanceName, string counterName, PerformanceCounterType counterType) {
if (ADP.IsPlatformNT5) {
try {
if (!ADP.IsEmpty(categoryName) && !ADP.IsEmpty(instanceName)) {
PerformanceCounter instance = new PerformanceCounter();
instance.CategoryName = categoryName;
instance.CounterName = counterName;
instance.InstanceName = instanceName;
instance.InstanceLifetime = PerformanceCounterInstanceLifetime.Process;
instance.ReadOnly = false;
instance.RawValue = 0; // make sure we start out at zero
_instance = instance;
}
}
catch (InvalidOperationException e) {
ADP.TraceExceptionWithoutRethrow(e);
//
}
}
}
internal void Decrement() {
PerformanceCounter instance = _instance;
if (null != instance) {
instance.Decrement();
}
}
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
internal void Dispose () { //
PerformanceCounter instance = _instance;
_instance = null;
if (null != instance) {
instance.RemoveInstance();
// should we be calling instance.Close?
// if we do will it exacerbate the Dispose vs. Decrement race condition
//instance.Close();
}
}
internal void Increment() {
PerformanceCounter instance = _instance;
if (null != instance) {
instance.Increment();
}
}
};
internal readonly Counter HardConnectsPerSecond;
internal readonly Counter HardDisconnectsPerSecond;
internal readonly Counter SoftConnectsPerSecond;
internal readonly Counter SoftDisconnectsPerSecond;
internal readonly Counter NumberOfNonPooledConnections;
internal readonly Counter NumberOfPooledConnections;
internal readonly Counter NumberOfActiveConnectionPoolGroups;
internal readonly Counter NumberOfInactiveConnectionPoolGroups;
internal readonly Counter NumberOfActiveConnectionPools;
internal readonly Counter NumberOfInactiveConnectionPools;
internal readonly Counter NumberOfActiveConnections;
internal readonly Counter NumberOfFreeConnections;
internal readonly Counter NumberOfStasisConnections;
internal readonly Counter NumberOfReclaimedConnections;
protected DbConnectionPoolCounters() : this(null, null) {
}
protected DbConnectionPoolCounters(string categoryName, string categoryHelp) {
AppDomain.CurrentDomain.DomainUnload += new EventHandler(this.UnloadEventHandler);
AppDomain.CurrentDomain.ProcessExit += new EventHandler(this.ExitEventHandler);
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(this.ExceptionEventHandler);
string instanceName = null;
if (!ADP.IsEmpty(categoryName)) {
if (ADP.IsPlatformNT5) {
#if CREATEONLY
if (!PerformanceCounterCategory.Exists(categoryName)) {
CreateCounters(categoryName, categoryHelp);
}
#endif //CREATEONLY
instanceName = GetInstanceName();
}
}
// level 0-3: hard connects/disconnects, plus basic pool/pool entry statistics
string basicCategoryName = categoryName;
HardConnectsPerSecond = new Counter(basicCategoryName, instanceName, CreationData.HardConnectsPerSecond.CounterName, CreationData.HardConnectsPerSecond.CounterType);
HardDisconnectsPerSecond = new Counter(basicCategoryName, instanceName, CreationData.HardDisconnectsPerSecond.CounterName, CreationData.HardDisconnectsPerSecond.CounterType);
NumberOfNonPooledConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfNonPooledConnections.CounterName, CreationData.NumberOfNonPooledConnections.CounterType);
NumberOfPooledConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfPooledConnections.CounterName, CreationData.NumberOfPooledConnections.CounterType);
NumberOfActiveConnectionPoolGroups = new Counter(basicCategoryName, instanceName, CreationData.NumberOfActiveConnectionPoolGroups.CounterName, CreationData.NumberOfActiveConnectionPoolGroups.CounterType);
NumberOfInactiveConnectionPoolGroups = new Counter(basicCategoryName, instanceName, CreationData.NumberOfInactiveConnectionPoolGroups.CounterName, CreationData.NumberOfInactiveConnectionPoolGroups.CounterType);
NumberOfActiveConnectionPools = new Counter(basicCategoryName, instanceName, CreationData.NumberOfActiveConnectionPools.CounterName, CreationData.NumberOfActiveConnectionPools.CounterType);
NumberOfInactiveConnectionPools = new Counter(basicCategoryName, instanceName, CreationData.NumberOfInactiveConnectionPools.CounterName, CreationData.NumberOfInactiveConnectionPools.CounterType);
NumberOfStasisConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfStasisConnections.CounterName, CreationData.NumberOfStasisConnections.CounterType);
NumberOfReclaimedConnections = new Counter(basicCategoryName, instanceName, CreationData.NumberOfReclaimedConnections.CounterName, CreationData.NumberOfReclaimedConnections.CounterType);
// level 4: expensive stuff
string verboseCategoryName = null;
if (!ADP.IsEmpty(categoryName)) {
// don't load TraceSwitch if no categoryName so that Odbc/OleDb have a chance of not loading TraceSwitch
// which are also used by System.Diagnostics.PerformanceCounter.ctor & System.Transactions.get_Current
TraceSwitch perfCtrSwitch = new TraceSwitch("ConnectionPoolPerformanceCounterDetail", "level of detail to track with connection pool performance counters");
if (TraceLevel.Verbose == perfCtrSwitch.Level) {
verboseCategoryName = categoryName;
}
}
SoftConnectsPerSecond = new Counter(verboseCategoryName, instanceName, CreationData.SoftConnectsPerSecond.CounterName, CreationData.SoftConnectsPerSecond.CounterType);
SoftDisconnectsPerSecond = new Counter(verboseCategoryName, instanceName, CreationData.SoftDisconnectsPerSecond.CounterName, CreationData.SoftDisconnectsPerSecond.CounterType);
NumberOfActiveConnections = new Counter(verboseCategoryName, instanceName, CreationData.NumberOfActiveConnections.CounterName, CreationData.NumberOfActiveConnections.CounterType);
NumberOfFreeConnections = new Counter(verboseCategoryName, instanceName, CreationData.NumberOfFreeConnections.CounterName, CreationData.NumberOfFreeConnections.CounterType);
}
[FileIOPermission(SecurityAction.Assert, Unrestricted=true)]
private string GetAssemblyName() {
string result = null;
// First try GetEntryAssembly name, then AppDomain.FriendlyName.
Assembly assembly = Assembly.GetEntryAssembly();
if (null != assembly) {
AssemblyName name = assembly.GetName();
if (name != null) {
result = name.Name; // MDAC 73469
}
}
return result;
}
private string GetInstanceName() {
string result = null;
string instanceName = GetAssemblyName(); // instance perfcounter name
if (ADP.IsEmpty(instanceName)) {
AppDomain appDomain = AppDomain.CurrentDomain;
if (null != appDomain) {
instanceName = appDomain.FriendlyName;
}
}
int pid = SafeNativeMethods.GetCurrentProcessId();
// SQLBUDT #366157 -there are several characters which have special meaning
// to PERFMON. They recommend that we translate them as shown below, to
// prevent problems.
result = String.Format((IFormatProvider)null, "{0}[{1}]", instanceName, pid);
result = result.Replace('(','[').Replace(')',']').Replace('#','_').Replace('/','_').Replace('\\','_');
return result;
}
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
public void Dispose() {
// ExceptionEventHandler with IsTerminiating may be called before
// the Connection Close is called or the variables are initialized
SafeDispose(HardConnectsPerSecond);
SafeDispose(HardDisconnectsPerSecond);
SafeDispose(SoftConnectsPerSecond);
SafeDispose(SoftDisconnectsPerSecond);
SafeDispose(NumberOfNonPooledConnections);
SafeDispose(NumberOfPooledConnections);
SafeDispose(NumberOfActiveConnectionPoolGroups);
SafeDispose(NumberOfInactiveConnectionPoolGroups);
SafeDispose(NumberOfActiveConnectionPools);
SafeDispose(NumberOfActiveConnections);
SafeDispose(NumberOfFreeConnections);
SafeDispose(NumberOfStasisConnections);
SafeDispose(NumberOfReclaimedConnections);
}
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
private void SafeDispose(Counter counter) { // WebData 103603
if (null != counter) {
counter.Dispose();
}
}
[PrePrepareMethod]
void ExceptionEventHandler (object sender, UnhandledExceptionEventArgs e) {
if ((null != e) && e.IsTerminating) {
Dispose();
}
}
[PrePrepareMethod]
void ExitEventHandler (object sender, EventArgs e) {
Dispose();
}
[PrePrepareMethod]
void UnloadEventHandler (object sender, EventArgs e) {
Dispose();
}
#if CREATEONLY
private void CreateCounters(string categoryName, string categoryHelp) {
int i = 0;
CounterCreationData[] myCounterCreationData = new CounterCreationData[CreationData.NumberOfCounters];
myCounterCreationData[i++] = CreationData.HardConnectsPerSecond;
myCounterCreationData[i++] = CreationData.HardDisconnectsPerSecond;
myCounterCreationData[i++] = CreationData.SoftConnectsPerSecond;
myCounterCreationData[i++] = CreationData.SoftDisconnectsPerSecond;
myCounterCreationData[i++] = CreationData.NumberOfNonPooledConnections;
myCounterCreationData[i++] = CreationData.NumberOfPooledConnections;
myCounterCreationData[i++] = CreationData.NumberOfActiveConnectionPoolGroups;
myCounterCreationData[i++] = CreationData.NumberOfInactiveConnectionPoolGroups;
myCounterCreationData[i++] = CreationData.NumberOfActiveConnectionPools;
myCounterCreationData[i++] = CreationData.NumberOfInactiveConnectionPools;
myCounterCreationData[i++] = CreationData.NumberOfActiveConnections;
myCounterCreationData[i++] = CreationData.NumberOfFreeConnections;
myCounterCreationData[i++] = CreationData.NumberOfStasisConnections;
myCounterCreationData[i++] = CreationData.NumberOfReclaimedConnections;
CounterCreationDataCollection myCounterCollection = new CounterCreationDataCollection(myCounterCreationData);
CreateCountersSafe(categoryName, categoryHelp, myCounterCollection);
for(i = 0; i < myCounterCollection.Count; i++) {
myCounterCollection.Remove(myCounterCreationData[i]);
}
}
private void CreateCountersSafe(string categoryName, string categoryHelp, CounterCreationDataCollection myCounterCollection) {
(new PerformanceCounterPermission(PerformanceCounterPermissionAccess.Instrument, ".", categoryName)).Assert();
try {
PerformanceCounterCategory.Create(categoryName, categoryHelp, myCounterCollection);
}
finally {
PerformanceCounterPermission.RevertAssert();
}
}
#endif //CREATEONLY
}
sealed internal class DbConnectionPoolCountersNoCounters : DbConnectionPoolCounters {
public static readonly DbConnectionPoolCountersNoCounters SingletonInstance = new DbConnectionPoolCountersNoCounters();
private DbConnectionPoolCountersNoCounters() : base () {
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- querybuilder.cs
- ComponentConverter.cs
- CustomAttributeFormatException.cs
- GroupByQueryOperator.cs
- BindingOperations.cs
- ButtonStandardAdapter.cs
- LayeredChannelFactory.cs
- BitmapInitialize.cs
- NTAccount.cs
- EntityDataSourceSelectedEventArgs.cs
- GenericAuthenticationEventArgs.cs
- EmptyEnumerator.cs
- IFlowDocumentViewer.cs
- DrawingImage.cs
- FormattedText.cs
- ListViewSelectEventArgs.cs
- TextFormatter.cs
- AdornerLayer.cs
- X509Extension.cs
- NativeMethods.cs
- _ListenerRequestStream.cs
- MonitoringDescriptionAttribute.cs
- GcSettings.cs
- RichTextBoxDesigner.cs
- NumberFormatInfo.cs
- DefaultAsyncDataDispatcher.cs
- CriticalExceptions.cs
- EnumBuilder.cs
- ProcessHostMapPath.cs
- FontCollection.cs
- EventTrigger.cs
- EntityTypeEmitter.cs
- AxDesigner.cs
- VirtualPathUtility.cs
- ToolStripCustomTypeDescriptor.cs
- ViewKeyConstraint.cs
- ServiceMemoryGates.cs
- ConfigurationManagerInternal.cs
- StateChangeEvent.cs
- FormatterConverter.cs
- SQLByte.cs
- DisplayInformation.cs
- DiscreteKeyFrames.cs
- StateRuntime.cs
- PartialClassGenerationTaskInternal.cs
- CreateUserErrorEventArgs.cs
- CacheMemory.cs
- Win32MouseDevice.cs
- EncodingDataItem.cs
- ListDictionary.cs
- ReaderWriterLockWrapper.cs
- DbException.cs
- SettingsPropertyValue.cs
- VersionConverter.cs
- NextPreviousPagerField.cs
- Debugger.cs
- StorageMappingItemLoader.cs
- Page.cs
- OutputCacheSettingsSection.cs
- RoamingStoreFileUtility.cs
- XmlSiteMapProvider.cs
- DecimalStorage.cs
- _ProxyChain.cs
- loginstatus.cs
- TagMapCollection.cs
- ApplicationServicesHostFactory.cs
- BufferedGraphicsContext.cs
- ListParaClient.cs
- InvalidTimeZoneException.cs
- CallSite.cs
- BaseUriHelper.cs
- OleDbMetaDataFactory.cs
- TypedDatasetGenerator.cs
- DataGridToolTip.cs
- Stroke2.cs
- CompilerState.cs
- AxHost.cs
- userdatakeys.cs
- WindowsGrip.cs
- Pkcs7Recipient.cs
- UpDownEvent.cs
- unitconverter.cs
- TextTreeNode.cs
- Transform3D.cs
- _SslStream.cs
- InvokeMethodActivityDesigner.cs
- NavigationWindowAutomationPeer.cs
- Row.cs
- XmlILConstructAnalyzer.cs
- AsyncCallback.cs
- NativeMethods.cs
- OleDbEnumerator.cs
- WebPartTransformer.cs
- DPAPIProtectedConfigurationProvider.cs
- ImageInfo.cs
- TypeDependencyAttribute.cs
- EntityCommandDefinition.cs
- HttpsTransportElement.cs
- DtrList.cs
- ZipIOExtraFieldZip64Element.cs