singrdk/base/Services/NetStack/Runtime/TcpSessionEventLog.cs

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2008-11-17 18:29:00 -05:00
// ----------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ----------------------------------------------------------------------------
//
// author: Glenn Peterson
//
using System;
using System.Runtime.CompilerServices;
using System.Text;
#if !SINGULARITY
using System.Net;
#endif
using Microsoft.Contracts;
using Microsoft.Singularity;
using Microsoft.Singularity.Eventing;
using Microsoft.Singularity.NetStack.Events;
namespace NetStack.Runtime
{
/// <summary>
/// A class-only attribute to denote an Event Logging Source.
/// </summary>
[AttributeUsage(AttributeTargets.Class)]
public sealed class EventLogSourceAttribute : Attribute
{
private string id = String.Empty;
private bool fieldRegistrationErrorFatal = true;
/// <summary>
/// Sole constructor requiring the source Identifier as the only parameter.
/// </summary>
/// <params name="id">
/// A string identifier for the particular event logging <b>source</b>.
/// </params>
public EventLogSourceAttribute(string id)
{
this.id = id;
}
/// <summary>
/// A string identifier for the particular event logging <b>source</b>.
/// </summary>
public string Id
{
get { return this.id; }
set { this.id = value; }
}
/// <summary>
/// A Boolean that dictates the handling of a field registration errors.
/// If <b>true</b> (the default), any field registration error causes
/// the entire registration, and therefore the Create method, to fail.
/// </summary>
public bool FieldRegistationErrorFatal
{
get { return this.fieldRegistrationErrorFatal; }
set { this.fieldRegistrationErrorFatal = value; }
}
}
/// <summary>
/// A method-only attribute denoting an Event Logging Method.
/// </summary>
[AttributeUsage(AttributeTargets.Method)]
public sealed class EventLogMethodAttribute : System.Attribute
{
private string id;
private bool heapAllowed = true;
private bool debugPrint = false;
private string formatString = String.Empty;
/// <summary>
/// Sole constructor requiring the method (event type)
/// identifier as the only parameter.
/// </summary>
/// <params name="id">
/// A string identifier for the particular event logging <b>method</b>
/// which becomes the identifier for the event type.
/// </params>
public EventLogMethodAttribute(string id)
{
this.id = id;
}
/// <summary>
/// A string identifier for the particular event logging <b>method</b>
/// which becomes the identifier for the event type.
/// </summary>
public string Id
{
get { return this.id; }
set { this.id = value; }
}
/// <summary>
/// If true, the generated code can perform heap allocations. NOT SURE IF NEEDED. // TODO
/// </summary>
public bool HeapAllowed
{
get { return this.heapAllowed; }
set { this.heapAllowed = value; }
}
/// <summary>
/// If true, the generated code will include a test
/// for the DebugPrint bit for this event type.
/// </summary>
public bool DebugPrint
{
get { return this.debugPrint; }
set { this.debugPrint = value; }
}
/// <summary>
/// A 'String.Format' format control string used when:
/// <para>
/// 1. The event is transferred to the debugger, and
/// </para>
/// <para>
/// 2. The event is displayed with the script tool in a mixed stream.
/// </para>
/// </summary>
public string FormatString
{
get { return this.formatString; }
set { this.formatString = value; }
}
}
/// <summary>
/// A parameter-only attribute describing the treatment
/// of a single parameter to an event logging method.
/// </summary>
/// <remarks>
/// No Id is present as a Property as the parameter's
/// name is the natural Id.
/// </remarks>
[AttributeUsage(AttributeTargets.Parameter)]
public sealed class EventLogMethodParameterAttribute : Attribute
{
private string title = String.Empty;
private uint ordinalInStruct;
private string typeInStruct = String.Empty;
/// <summary>
/// A string used in lieu of the parameter name in columnar reports.
/// </summary>
/// <remarks>If not supplied, the parameter name is used.</remarks>
public string Title
{
get { return this.title; }
set { this.title = value; }
}
/// <summary>
/// Specifies the zero-based ordinal of this parameter in the structure
/// used to add this event to the event stream.
/// </summary>
/// <remarks>
/// If not supplied, the parameter order in the method call is used.
/// </remarks>
public uint OrdinalInStruct
{
get { return this.ordinalInStruct; }
set { this.ordinalInStruct = value; }
}
/// <summary>
/// Specifies the type of the data element to use in the structure used
/// to add this event to the event stream.
/// </summary>
/// <remarks>
/// If not supplied, the type of the parameter in the method call is used.
/// </remarks>
public string TypeInStruct // BUGBUG: Should not be a string, should be a value-type. // TODO
{
get { return this.typeInStruct; }
set { this.typeInStruct = value; }
}
}
/// <summary>
/// Eventing and Tracing support for the TcpSession class.
/// </summary>
[CLSCompliant(false)]
[EventLogSource("TcpSession")]
public class TcpSessionEventsSource : EventSource // TODO: Base class constructor should take storageOptions and Size - then the static almost goes away.
{
public const uint LogStateChanges = 0x00010000;
public const uint LogReceivedPackets = 0x00020000;
public const uint LogSendingPackets = 0x00040000;
public const uint LogTimeouts = 0x00080000;
public const uint LogStateChangeContractCalls = 0x00100000;
public const uint LogDataTransferContractCalls = 0x00200000;
public const uint LogQueryContractCalls = 0x00400000;
public const uint LogInfoContractCalls = 0x00800000;
// Event Log size in bytes.
// Overhead is 24 bytes and TcpSession uses <= 8.
private const uint EventLogBufferSize = 32u * 2048u;
// Global Instance
public static readonly TcpSessionEventsSource EventLog;
// Enums to represent TCP Contract Entrypoints
public enum TcpSessionContractEntrypoints
{
Unknown = 0,
Connect, Bind, Listen, Accept,
DoneSending, DoneReceiving, Abort, Close,
BindLocalEndPoint,
Read, PollRead, Write,
IsSessionAvailable, IsDataAvailable,
GetLocalAddress, GetLocalPort,
GetRemoteAddress, GetRemotePort,
ChannelClosed,
}
// Strings matching enum immediately above.
internal static readonly string[] ContractCallNames = new string[]
{
"Unknown",
"Connect", "Bind", "Listen", "Accept",
"DoneSending", "DoneReceiving", "Abort", "Close",
"BindLocalEndPoint",
"Read", "PollRead", "Write",
"IsSessionAvailable", "IsDataAvailable",
"GetLocalAddress", "GetLocalPort",
"GetRemoteAddress", "GetRemotePort",
"ChannelClosed",
};
private UIntPtr stateChangeTypeHandle;
private UIntPtr receivedPacketTypeHandle;
private UIntPtr sendingPacketTypeHandle;
private UIntPtr timeoutTypeHandle;
private UIntPtr contractCallTypeHandle;
private uint debugOptions;
private struct StateChangeEntry
{
public ushort sessionId;
public byte fromState;
public byte toState;
public StateChangeEntry(uint sessionId, TcpStateEnum fromState, TcpStateEnum toState)
{
this.sessionId = (ushort)sessionId;
this.fromState = (byte)fromState;
this.toState = (byte)toState;
}
}
private struct ReceivedPacketEntry
{
public ushort sessionId;
public byte sessionState;
public byte packetFlags;
public ushort packetLength;
public ReceivedPacketEntry(uint sessionId, TcpStateEnum sessionState, uint packetFlags, uint packetLength)
{
this.sessionId = (ushort)sessionId;
this.sessionState = (byte)sessionState;
this.packetFlags = (byte)packetFlags;
this.packetLength = (ushort)packetLength;
}
}
private struct SendingPacketEntry
{
public ushort sessionId;
public byte sessionState;
public byte packetFlags;
public ushort packetLength;
public SendingPacketEntry(uint sessionId, TcpStateEnum sessionState, uint packetFlags, uint packetLength)
{
this.sessionId = (ushort)sessionId;
this.sessionState = (byte)sessionState;
this.packetFlags = (byte)packetFlags;
this.packetLength = (ushort)packetLength;
}
}
private struct TimeoutEntry
{
public ushort sessionId;
public byte sessionState;
public byte timeoutType;
public TimeoutEntry(uint sessionId, TcpStateEnum sessionState, TcpSession.TcpTimeoutType timeoutType)
{
this.sessionId = (ushort)sessionId;
this.sessionState = (byte)sessionState;
this.timeoutType = (byte)timeoutType;
}
}
private struct ContractCallEntry
{
public ushort sessionId;
public byte sessionState;
public byte callId;
public ContractCallEntry(uint sessionId, TcpStateEnum sessionState,
TcpSessionContractEntrypoints callId)
{
this.sessionId = (ushort)sessionId;
this.sessionState = (byte)sessionState;
this.callId = (byte)callId;
}
}
/// <summary>
/// The Static Constructor. It creates the event session for this SIP.
/// </summary>
static TcpSessionEventsSource()
{
TcpSessionEventsSource.EventLog = TcpSessionEventsSource.Create(// BUGBUG AM: Why isn't this a normal constructor????
"TcpSessions",
TcpSessionEventsSource.EventLogBufferSize,
QualityOfService.RecyclableEvents,
EventSource.ENABLE_ALL_MASK & ~( // Buffering Mask // BUGBUG: Switch to Positive Logic when system and user masks separated? // TODO
//Incl TcpSessionEventsSource.LogStateChanges |
/*Omit*/TcpSessionEventsSource.LogSendingPackets |
//Incl TcpSessionEventsSource.LogReceivedPackets |
//Incl TcpSessionEventsSource.LogTimeouts |
//Incl TcpSessionEventsSource.LogStateChangeContractCalls |
/*Omit*/TcpSessionEventsSource.LogDataTransferContractCalls |
/*Omit*/TcpSessionEventsSource.LogQueryContractCalls |
/*Omit*/TcpSessionEventsSource.LogInfoContractCalls |
0u),
EventSource.ENABLE_ALL_MASK & ~( // Debugging Mask // BUGBUG: Same // TODO
/*Omit*/TcpSessionEventsSource.LogStateChanges |
/*Omit*/TcpSessionEventsSource.LogSendingPackets |
/*Omit*/TcpSessionEventsSource.LogReceivedPackets |
/*Omit*/TcpSessionEventsSource.LogTimeouts |
/*Omit*/TcpSessionEventsSource.LogStateChangeContractCalls |
/*Omit*/TcpSessionEventsSource.LogDataTransferContractCalls |
/*Omit*/TcpSessionEventsSource.LogQueryContractCalls |
/*Omit*/TcpSessionEventsSource.LogInfoContractCalls |
0u));
#if false
TcpSessionEvents.EventLog =
TcpSessionEvents.Create("TcpSession",
4096,
QualityOfService.RecyclableEvents,
EventSource.ENABLE_ALL_MASK |
EventSource.CAPTURE_DEBUG_PRINT);
#endif
}
/// <summary>
/// Create and Register a TcpSessionEventsSource.
/// </summary>
/// <devdoc>
/// This should be a Generic when supported. Or use more of the base class (Static?) // BUGBUG AM (later?)
/// </devdoc>
public static TcpSessionEventsSource Create(string sourceName,
uint size,
uint storageOptions, // BUGBUG AM: [Flags] enum
uint sourceFlags,
uint debugFlags)
{
TcpSessionEventsSource tcpSessionEventsSource = null;
EventingStorage eventStorage =
EventingStorage.CreateLocalStorage(storageOptions, size);
if (eventStorage == null)
{
DebugStub.WriteLine("Failure to obtain storage for TcpSessionEvents");
DebugStub.Break();
}
else
{
tcpSessionEventsSource =
new TcpSessionEventsSource(sourceName, eventStorage, sourceFlags, debugFlags);
if (tcpSessionEventsSource == null)
{
// TODO: Is EventStorage returned here and below if failures occur?
DebugStub.WriteLine("Failure to construct TcpSessionEventsSource instance.");
DebugStub.Break();
}
else
{
bool registerSucceeded = tcpSessionEventsSource.Register();
if (registerSucceeded == false)
{
tcpSessionEventsSource = null;
DebugStub.WriteLine("Failure to register TcpSessionEventsSource.");
DebugStub.Break();
}
}
}
return tcpSessionEventsSource;
}
/// <summary>Fully parameterized and sole constructor.</summary>
/// <devdoc>BUGBUG AM: parameterization: have base EP that takes storageoptions and size to elim dup code (generated or not)</devdoc>
public TcpSessionEventsSource(string sourceName, EventingStorage storage, uint controlFlags, uint debugOptions)
: base(sourceName, storage, controlFlags)
{
this.debugOptions = debugOptions;
}
~TcpSessionEventsSource()
{
// BUGBUG AM: Free EventingStorage (using base somehow? please!)
}
//[NoHeapAllocation]
[EventLogMethod("TcpSessionStateChange",
HeapAllowed = true,
DebugPrint = false,
FormatString = "TCP: Ses{0,3} ({1}) State Change to {2}.")]
public bool LogSessionStateChange(
[EventLogMethodParameter(Title = "Session", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "FrState", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum fromState,
[EventLogMethodParameter(Title = "ToState", OrdinalInStruct = 2, TypeInStruct = "byte")]
TcpStateEnum toState) // BUGBUG AM: signature poor way to differentiate various entries. Is there a way to have two two "int" loggers with different types and member labels?
{
if ((debugOptions & LogStateChanges /* To Debugger */) != 0)
{
Core.Log("TCP: Ses{0,3} ({1}) State Change to {2}.",
sessionId,
TcpState.TcpStateNames[(uint)fromState],
TcpState.TcpStateNames[(uint)toState]);
}
if ((ControlFlags & LogStateChanges) != 0)
{
StateChangeEntry stateChangeEntry =
new StateChangeEntry(sessionId, fromState, toState);
unsafe
{ // BUGBUG AM: Just a comment - this causes my otherwise safe compile to be changed to unsafe. This is bad.
return (LogEntry(ControlFlags,
stateChangeTypeHandle,
(byte*)&stateChangeEntry,
sizeof(StateChangeEntry)) != 0);
}
}
return false;
}
//[NoHeapAllocation]
[EventLogMethod("TcpPacketReceived",
HeapAllowed = true,
DebugPrint = false,
FormatString = "TCP: Ses{0,3} ({1}) Packet ({2}) Len{3,4} received")]
public bool LogReceivedPacket(
[EventLogMethodParameter(Title = "Session Id", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "Session State", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "Packet Flags", OrdinalInStruct = 2, TypeInStruct = "byte")]
uint packetFlags,
[EventLogMethodParameter(Title = "Packet Length", OrdinalInStruct = 3, TypeInStruct = "ushort")]
uint packetLength)
{
if ((debugOptions & LogReceivedPackets /* To Debugger */) != 0)
{
string flagsText = FlagsToText(packetFlags); // TODO Move then Qualify
Core.Log("TCP: Ses{0,3} ({1}) Packet ({2}) Len{3,4} received",
sessionId,
TcpState.TcpStateNames[(uint)sessionState],
flagsText,
packetLength);
}
if ((ControlFlags & LogReceivedPackets) != 0)
{
ReceivedPacketEntry receivedPacketEntry =
new ReceivedPacketEntry(sessionId, sessionState, packetFlags, packetLength);
unsafe
{
return (LogEntry(ControlFlags,
receivedPacketTypeHandle,
(byte*)&receivedPacketEntry,
sizeof(ReceivedPacketEntry)) != 0);
}
}
return false;
}
//[NoHeapAllocation]
[EventLogMethod("TcpPacketSending",
HeapAllowed = true,
DebugPrint = false,
FormatString = "TCP: Ses{0,3} ({1}) Packet ({2}) Len{3,4} being sent")]
public bool LogSendingPacket(
[EventLogMethodParameter(Title = "Session Id", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "Session State", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "Packet Flags", OrdinalInStruct = 2, TypeInStruct = "byte")]
uint packetFlags,
[EventLogMethodParameter(Title = "Packet Length", OrdinalInStruct = 3, TypeInStruct = "ushort")]
uint packetLength)
{
if ((debugOptions & LogSendingPackets /* To Debugger */) != 0)
{
string flagsText = FlagsToText(packetFlags); // TODO Move then Qualify
Core.Log("TCP: Ses{0,3} ({1}) Packet ({2}) Len{3,4} being sent",
sessionId,
TcpState.TcpStateNames[(uint)sessionState],
flagsText,
packetLength);
}
if ((ControlFlags & LogSendingPackets) != 0)
{
SendingPacketEntry sendingPacketEntry =
new SendingPacketEntry(sessionId, sessionState, packetFlags, packetLength);
unsafe
{
return (LogEntry(ControlFlags,
sendingPacketTypeHandle,
(byte*)&sendingPacketEntry,
sizeof(SendingPacketEntry)) != 0);
}
}
return false;
}
//[NoHeapAllocation]
[EventLogMethod("TcpTimeout",
HeapAllowed = true,
DebugPrint = false,
FormatString = "TCP: Ses{0,3} ({1}) Timeout of type '{2}' occurred")]
public bool LogTimeout(
[EventLogMethodParameter(Title = "Session Id", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "Session State", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "Timeout Type", OrdinalInStruct = 2, TypeInStruct = "byte")]
TcpSession.TcpTimeoutType timeoutType)
{
if ((debugOptions & LogTimeouts /* To Debugger */) != 0)
{
Core.Log("TCP: Ses{0,3} ({1}) Timeout of type '{2}' occurred",
sessionId,
TcpState.TcpStateNames[(uint)sessionState],
TcpSession.TcpTimeoutTypeNames[(uint)timeoutType]);
}
if ((ControlFlags & LogTimeouts) != 0)
{
TimeoutEntry timeoutEntry =
new TimeoutEntry(sessionId, sessionState, timeoutType);
unsafe
{
return (LogEntry(ControlFlags,
timeoutTypeHandle,
(byte*)&timeoutEntry,
sizeof(TimeoutEntry)) != 0);
}
}
return false;
}
//[NoHeapAllocation]
[EventLogMethod("TcpSessionStateChangeContractCall",
HeapAllowed = true,
DebugPrint = true,
FormatString = "TCP: Ses{0,3} ({1}) Contract EP '{2}' called.")]
public bool LogSessionStateChangeContractCall(
[EventLogMethodParameter(Title = "Session", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "SessionState", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "CallId", OrdinalInStruct = 2, TypeInStruct = "byte")]
TcpSessionContractEntrypoints contractEntrypoint)
{
return this.LogSessionContractCall(sessionId, sessionState,
contractEntrypoint,
LogStateChangeContractCalls);
}
//[NoHeapAllocation]
[EventLogMethod("TcpSessionDataTransferContractCall",
HeapAllowed = true,
DebugPrint = true,
FormatString = "TCP: Ses{0,3} ({1}) Contract EP '{2}' called.")]
internal bool LogSessionDataTransferContractCall(
[EventLogMethodParameter(Title = "Session", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "SessionState", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "CallId", OrdinalInStruct = 2, TypeInStruct = "byte")]
TcpSessionContractEntrypoints contractEntrypoint)
{
return this.LogSessionContractCall(sessionId, sessionState,
contractEntrypoint,
LogDataTransferContractCalls);
}
//[NoHeapAllocation]
[EventLogMethod("TcpSessionQueryContractCall",
HeapAllowed = true,
DebugPrint = true,
FormatString = "TCP: Ses{0,3} ({1}) Contract EP '{2}' called.")]
internal bool LogSessionQueryContractCall(
[EventLogMethodParameter(Title = "Session", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "SessionState", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "CallId", OrdinalInStruct = 2, TypeInStruct = "byte")]
TcpSessionContractEntrypoints contractEntrypoint)
{
return this.LogSessionContractCall(sessionId, sessionState,
contractEntrypoint,
LogQueryContractCalls);
}
//[NoHeapAllocation]
[EventLogMethod("TcpSessionInfoContractCall",
HeapAllowed = true,
DebugPrint = true,
FormatString = "TCP: Ses{0,3} ({1}) Contract EP '{2}' called.")]
internal bool LogSessionInfoContractCall(
[EventLogMethodParameter(Title = "Session", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "SessionState", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "CallId", OrdinalInStruct = 2, TypeInStruct = "byte")]
TcpSessionContractEntrypoints contractEntrypoint)
{
return this.LogSessionContractCall(sessionId, sessionState,
contractEntrypoint,
LogInfoContractCalls);
}
//[NoHeapAllocation]
[EventLogMethod("TcpSessionContractCall",
HeapAllowed = true,
DebugPrint = true,
FormatString = "TCP: Ses{0,3} ({1}) Contract EP '{2}' called.")]
private bool LogSessionContractCall(
[EventLogMethodParameter(Title = "Session", OrdinalInStruct = 0, TypeInStruct = "ushort")]
uint sessionId,
[EventLogMethodParameter(Title = "SessionState", OrdinalInStruct = 1, TypeInStruct = "byte")]
TcpStateEnum sessionState,
[EventLogMethodParameter(Title = "CallName", OrdinalInStruct = 2, TypeInStruct = "byte")]
TcpSessionContractEntrypoints contractEntrypoint,
uint flag)
{
if ((debugOptions & flag /* To Debugger */) != 0)
{
Core.Log("TCP: Ses{0,3} ({1}) Contract EP '{2}' called.",
sessionId,
TcpState.TcpStateNames[(uint)sessionState],
TcpSessionEventsSource.ContractCallNames[(uint)contractEntrypoint]);
}
if ((ControlFlags & flag) != 0)
{
ContractCallEntry contractCallEntry =
new ContractCallEntry(sessionId, sessionState, contractEntrypoint);
unsafe
{
return (LogEntry(ControlFlags,
contractCallTypeHandle,
(byte*)&contractCallEntry,
sizeof(ContractCallEntry)) != 0);
}
}
return false;
}
public override bool Register()
{
// Check assumptions for remainder of method.
if ((base.Register() == false) || (HostController == null))
{ // BUGBUG AM: base.Register() should check if HostController is null, not all callers
DebugStub.WriteLine("TcpSessionEventsSource: Improper Registration Environment.");
return false;
}
// TcpSessionStateChange event registration
if (HostController.RegisterEvent("TcpSessionStateChange",
"TCP: Ses{0,3} ({1}) State Change to {2}.",
ref stateChangeTypeHandle))
{ // BUGBUG AM: Aliases possible with different structs. Should pass in Struct and Reflect to get name of runtime type, field names, ...
if ((!HostController.RegisterEventField(stateChangeTypeHandle, "SessionId", 0, DataType.__uint16)) ||
(!HostController.RegisterEventField(stateChangeTypeHandle, "FromState", 0, DataType.__uint8)) ||
(!HostController.RegisterEventField(stateChangeTypeHandle, "ToState", 0, DataType.__uint8)))
{
stateChangeTypeHandle = 0;
}
}
// TcpSessionReceivedPacket event registration
if (HostController.RegisterEvent("TcpSessionReceivedPacket",
"TCP: Ses{0,3} ({1}) Packet ({2}) Len{3,4} received",
ref receivedPacketTypeHandle))
{
if ((!HostController.RegisterEventField(receivedPacketTypeHandle, "SessionId", 0, DataType.__uint16)) ||
(!HostController.RegisterEventField(receivedPacketTypeHandle, "SessionState", 0, DataType.__uint8)) ||
(!HostController.RegisterEventField(receivedPacketTypeHandle, "PacketFlags", 0, DataType.__uint8)) ||
(!HostController.RegisterEventField(receivedPacketTypeHandle, "PacketLength", 0, DataType.__uint16)))
{
receivedPacketTypeHandle = 0;
}
}
// TcpSessionReceivedPacket event registration
if (HostController.RegisterEvent("TcpSessionSendingPacket",
"TCP: Ses{0,3} ({1}) Packet ({2}) Len{3,4} being sent",
ref sendingPacketTypeHandle))
{
if ((!HostController.RegisterEventField(sendingPacketTypeHandle, "SessionId", 0, DataType.__uint16)) ||
(!HostController.RegisterEventField(sendingPacketTypeHandle, "SessionState", 0, DataType.__uint8)) ||
(!HostController.RegisterEventField(sendingPacketTypeHandle, "PacketFlags", 0, DataType.__uint8)) ||
(!HostController.RegisterEventField(sendingPacketTypeHandle, "PacketLength", 0, DataType.__uint16)))
{
sendingPacketTypeHandle = 0;
}
}
// TcpSessionTimeout event registration
if (HostController.RegisterEvent("TcpSessionTimeout",
"TCP: Ses{0,3} ({1}) Timeout of type '{2}' occurred",
ref timeoutTypeHandle))
{
if ((!HostController.RegisterEventField(timeoutTypeHandle, "SessionId", 0, DataType.__uint16)) ||
(!HostController.RegisterEventField(timeoutTypeHandle, "SessionState", 0, DataType.__uint8)) ||
(!HostController.RegisterEventField(timeoutTypeHandle, "TimeoutType", 0, DataType.__uint8)))
{
timeoutTypeHandle = 0;
}
}
// TcpSessionContractCall event registration
if (HostController.RegisterEvent("TcpSessionContractCall",
"TCP: Ses{0,3} ({1}) Contract EP '{2}' called.",
ref contractCallTypeHandle))
{
if ((!HostController.RegisterEventField(contractCallTypeHandle, "SessionId", 0, DataType.__uint16)) ||
(!HostController.RegisterEventField(contractCallTypeHandle, "SessionState", 0, DataType.__uint8)) ||
(!HostController.RegisterEventField(contractCallTypeHandle, "ContractCall", 0, DataType.__uint8)))
{
contractCallTypeHandle = 0;
}
}
// Make sure all handles were either there before or were created here.
if ((stateChangeTypeHandle == 0) || (contractCallTypeHandle == 0) ||
(sendingPacketTypeHandle == 0) || (sendingPacketTypeHandle == 0))
{
// Construct an error message
StringBuilder errorString = new StringBuilder();
String conjunction = "TcpSessionEventsSource: Registration Failed for ";
// State Change
if (stateChangeTypeHandle == 0)
{
errorString.Append(conjunction);
errorString.Append("StateChangeEventType");
conjunction = ", ";
}
// Received Packet
if (receivedPacketTypeHandle == 0)
{
errorString.Append(conjunction);
errorString.Append("ReceivedPacketEventType");
conjunction = ", ";
}
// Sending Packet
if (sendingPacketTypeHandle == 0)
{
errorString.Append(conjunction);
errorString.Append("SendingPacketEventType");
conjunction = ", ";
}
// Timeout
if (timeoutTypeHandle == 0)
{
errorString.Append(conjunction);
errorString.Append("TimeoutEventType");
conjunction = ", ";
}
// Contract Call
if (contractCallTypeHandle == 0)
{
errorString.Append(conjunction);
errorString.Append("ContractCallEventType");
conjunction = ", ";
}
// Complete the error message and write it to the debugger.
errorString.Append(".");
errorString.Append(Environment.NewLine);
DebugStub.Write(errorString.ToString());
// Report the failure.
return false;
}
// If this is reached then everything worked so report success.
return true;
}
[Pure]
[Inline]
private static string FlagsToText(uint flags)
{
string[] loBits = new string[] {
"....", "F...", ".S..", "FS..",
"..R.", "F.R.", ".SR.", "FSR.",
"...P", "F..P", ".S.P", "FS.P",
"..RP", "F.RP", ".SRP", "FSRP",
};
string[] hiBits = new string[] {
"....", "A...", ".I..", "AI..",
"..E.", "A.E.", ".IE.", "AIE.",
"...C", "A..C", ".I.C", "AI.C",
"..EC", "A.EC", ".IEC", "AIEC",
};
return loBits[(flags >> 0) & 0x0F] + hiBits[(flags >> 4) & 0x0F];
}
}
}