static protected uint ReadAndUnpackBits(_DBG.BitStream stream)
{
const int SHIFT_PER_NIBBLE = 2; //2^2 = 4 bits per nibble
uint nibbles = stream.ReadBits(Packets.Commands.Bits.NibbleCount) + 1;
return(stream.ReadBits((int)nibbles << SHIFT_PER_NIBBLE));
}
public TimestampPacket(_DBG.BitStream stream) : base(Commands.c_Profiling_Timestamp)
{
ulong l = (ulong)ReadAndUnpackBits(stream) << Packets.Commands.Bits.TimestampShift;
m_time = l / TimeSpan.TicksPerMillisecond;
Tracing.PacketTrace("time {0}", m_time);
}
static protected uint ReadMethodDefIndex(_DBG.BitStream stream)
{
uint assembly = ReadAndUnpackBits(stream);
uint method = ReadAndUnpackBits(stream);
return(assembly << ASSEMBLY_BIT_OFFSET | method);
}
static protected uint ReadTypeDefIndex(_DBG.BitStream stream)
{
uint assembly = ReadAndUnpackBits(stream);
uint type = ReadAndUnpackBits(stream);
return(assembly << ASSEMBLY_BIT_OFFSET | type);
}
public HeapDumpObjectPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_HeapDump_Object)
{
m_address = ReadAndUnpackBits(stream);
m_size = ReadAndUnpackBits(stream) * ProfilerSession.HeapBlockSize;
m_dt = (_DBG.RuntimeDataType)stream.ReadBits(Commands.Bits.DataType);
if (m_dt == _DBG.RuntimeDataType.DATATYPE_CLASS || m_dt == _DBG.RuntimeDataType.DATATYPE_VALUETYPE)
{
m_typedef = ReadTypeDefIndex(stream);
}
else if (m_dt == _DBG.RuntimeDataType.DATATYPE_SZARRAY)
{
m_arrayElementType = ReadTypeDefIndex(stream);
m_arrayLevels = (ushort)ReadAndUnpackBits(stream);
}
m_refs = new List <uint>();
bool moreRefs;
while (moreRefs = ReadBoolean(stream))
{
m_refs.Add(ReadAndUnpackBits(stream));
}
}
internal static Packets.ProfilerPacket Decode(_DBG.BitStream stream)
{
uint type = stream.ReadBits(Packets.Commands.Bits.CommandHeader);
Tracing.PacketTrace("New Packet {0}", type);
switch (type)
{
case Packets.Commands.c_Profiling_Timestamp:
return(new Packets.TimestampPacket(stream));
case Packets.Commands.c_Profiling_Memory_Layout:
return(new Packets.MemoryLayoutPacket(stream));
case Packets.Commands.c_Profiling_HeapDump_Start:
return(new Packets.HeapDumpStartPacket(stream));
case Packets.Commands.c_Profiling_HeapDump_Stop:
return(new Packets.HeapDumpStopPacket(stream));
case Packets.Commands.c_Profiling_HeapDump_Root:
return(new Packets.HeapDumpRootPacket(stream));
case Packets.Commands.c_Profiling_HeapDump_Object:
return(new Packets.HeapDumpObjectPacket(stream));
case Packets.Commands.c_Profiling_Calls_Call:
return(new Packets.CallPacket(stream));
case Packets.Commands.c_Profiling_Calls_Return:
return(new Packets.ReturnPacket(stream));
case Packets.Commands.c_Profiling_Calls_CtxSwitch:
return(new Packets.ContextSwitchPacket(stream));
case Packets.Commands.c_Profiling_Allocs_Alloc:
return(new Packets.ObjectAllocationPacket(stream));
case Packets.Commands.c_Profiling_Allocs_Relloc:
return(new Packets.ObjectRelocationPacket(stream));
case Packets.Commands.c_Profiling_Allocs_Delete:
return(new Packets.ObjectDeletionPacket(stream));
case Packets.Commands.c_Profiling_GarbageCollect_Begin:
return(new Packets.GarbageCollectionBeginPacket(stream));
case Packets.Commands.c_Profiling_GarbageCollect_End:
return(new Packets.GarbageCollectionEndPacket(stream));
case Packets.Commands.c_Profiling_HeapCompact_Begin:
return(new Packets.HeapCompactionBeginPacket(stream));
case Packets.Commands.c_Profiling_HeapCompact_End:
return(new Packets.HeapCompactionEndPacket(stream));
default:
throw new ApplicationException("Unable to decode packet.");
}
}
public CallPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_Calls_Call)
{
if (ReadBoolean(stream))
{
m_assembly = ReadAndUnpackBits(stream);
Debug.Assert(m_assembly != 0);
}
m_method = ReadAndUnpackBits(stream);
}
public HeapDumpRootPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_HeapDump_Root)
{
m_address = ReadAndUnpackBits(stream);
m_source = stream.ReadBits(Packets.Commands.Bits.RootTypes);
switch (m_source)
{
case Packets.Commands.RootTypes.Root_Stack:
m_method = ReadMethodDefIndex(stream);
break;
}
Tracing.PacketTrace("root type:{0} at {1}", m_source, m_address);
}
public ObjectRelocationPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_Allocs_Relloc)
{
uint count = ReadAndUnpackBits(stream);
reloc = new ObjectRelocation.RelocationRegion[count];
for (uint i = 0; i < count; i++)
{
reloc[i] = new ObjectRelocation.RelocationRegion();
reloc[i].m_start = ReadAndUnpackBits(stream);
reloc[i].m_end = ReadAndUnpackBits(stream);
reloc[i].m_offset = ReadAndUnpackBits(stream);
}
}
public ObjectAllocationPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_Allocs_Alloc)
{
m_address = ReadAndUnpackBits(stream);
m_size = ReadAndUnpackBits(stream) * ProfilerSession.HeapBlockSize;
m_dt = (_DBG.RuntimeDataType)stream.ReadBits(Commands.Bits.DataType);
if (m_dt == _DBG.RuntimeDataType.DATATYPE_CLASS || m_dt == _DBG.RuntimeDataType.DATATYPE_VALUETYPE ||
m_dt == _DBG.RuntimeDataType.DATATYPE_SZARRAY)
{
m_type = ReadTypeDefIndex(stream);
if (m_dt == _DBG.RuntimeDataType.DATATYPE_SZARRAY)
{
m_rank = (ushort)ReadAndUnpackBits(stream);
}
}
else
{
m_type = (uint)m_dt;
}
}
public ProfilerSession(_DBG.Engine engine)
{
if (engine == null)
{
throw new ArgumentNullException();
}
m_connected = true;
m_engine = engine;
m_engine.OnCommand += new _DBG.CommandEventHandler(OnDeviceCommand);
m_incomingStream = new _DBG.BitStream(true);
m_startTime = 0;
m_lastKnownTime = 0;
m_currentHeapDump = null;
m_threadCallStacks = new Dictionary<uint, Stack<uint>>();
m_liveObjectTable = new List<uint>();
m_firstPacket = true;
m_receiverThread = new Thread(WorkerThread);
m_receiverThread.Start();
}
public ProfilerSession(_DBG.Engine engine)
{
if (engine == null)
{
throw new ArgumentNullException();
}
m_connected = true;
m_engine = engine;
m_engine.OnCommand += new _DBG.CommandEventHandler(OnDeviceCommand);
m_incomingStream = new _DBG.BitStream(true);
m_startTime = 0;
m_lastKnownTime = 0;
m_currentHeapDump = null;
m_threadCallStacks = new Dictionary <uint, Stack <uint> >();
m_liveObjectTable = new List <uint>();
m_firstPacket = true;
m_receiverThread = new Thread(WorkerThread);
m_receiverThread.Start();
}
private void InitializeForDeserialization(Type t, byte[] data, int pos, int len)
{
m_stream = new BitStream(data, pos, len);
m_value = null;
Initialize(t, true);
}
private void InitializeForSerialization(Type t, object o)
{
m_stream = new BitStream();
m_value = o;
Initialize(t, false);
}
public GarbageCollectionEndPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_GarbageCollect_End)
{
m_freeBytes = ReadAndUnpackBits(stream);
}
public HeapCompactionEndPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_HeapCompact_End)
{
m_freeBytes = ReadAndUnpackBits(stream);
}
static protected bool ReadBoolean(_DBG.BitStream stream)
{
return(stream.ReadBits(1) == 1);
}
public ObjectDeletionPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_Allocs_Delete)
{
m_address = ReadAndUnpackBits(stream);
}
public MemoryLayoutPacket(_DBG.BitStream stream) : base(Commands.c_Profiling_Memory_Layout)
{
m_heapAddress = ReadAndUnpackBits(stream);
m_heapLength = ReadAndUnpackBits(stream);
Tracing.PacketTrace("layout {0}:{1}", m_heapAddress, m_heapLength);
}
public ContextSwitchPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_Calls_Call)
{
m_thread = ReadAndUnpackBits(stream);
}
public ReturnPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_Calls_Call)
{
m_duration = (ulong)ReadAndUnpackBits(stream) << Packets.Commands.Bits.CallTimingShift;
}
public HeapDumpStartPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_HeapDump_Start)
{
}
public HeapDumpStopPacket(_DBG.BitStream stream)
: base(Commands.c_Profiling_HeapDump_Stop)
{
m_heapBytesUsed = ReadAndUnpackBits(stream);
}
