public int ReadStruct(byte[] b, int Offset, int Length)
{
int versionLength = this.GetVersionLength();
int result = Offset;
int length = this.GetLength();
int requiredBufferSize = this.GetRequiredBufferSize();
IntPtr intPtr = IntPtr.Zero;
try
{
if (intPtr == IntPtr.Zero)
{
intPtr = Marshal.AllocCoTaskMem(length);
this.mqODSize = versionLength;
}
Marshal.Copy(b, Offset, intPtr, versionLength);
if (this.useNativePtrSz)
{
this.mqOD = (MQOD)Marshal.PtrToStructure(intPtr, typeof(MQOD));
this.copyToMQOD32();
}
else
{
this.mqOD32 = (MQOD32)Marshal.PtrToStructure(intPtr, typeof(MQOD32));
this.copyToMQOD();
}
result = Offset + requiredBufferSize;
if (this.mqOD.Version >= 4)
{
this.objectString.ReadStruct(b, Offset, Offset + this.OBJSTRING_OFFSET);
this.objectString.GetEndPosAligned(Offset);
this.selectionString.ReadStruct(b, Offset, Offset + this.SELSTRING_OFFSET);
this.selectionString.GetEndPosAligned(Offset);
this.resolvedObjectString.ReadStruct(b, Offset, Offset + this.ROBJSTRING_OFFSET);
this.resolvedObjectString.GetEndPosAligned(Offset);
}
this.ClearInvalidFields(this.mqOD.Version);
}
finally
{
if (intPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(intPtr);
intPtr = IntPtr.Zero;
}
}
return(result);
}
protected void Open(MQObjectDescriptor od)
{
int hobj, compCode, reason;
od.CopyCHARVIntoOD();
if (od.Version == MQC.MQOD_VERSION_1 || od.Version == MQC.MQOD_VERSION_2)
{
MQOD structMQOD = od.StructMQOD;
Bindings.MQOPEN(qMgr.Handle, ref structMQOD, OpenOptions, out hobj, out compCode, out reason);
}
else
{
byte[] array = new byte[od.GetRequiredBufferSize()];
od.WriteStruct(array, 0);
IntPtr intPtr = Marshal.AllocCoTaskMem(array.Length);
try
{
Marshal.Copy(array, 0, intPtr, array.Length);
Bindings.MQOPEN(qMgr.Handle, intPtr, OpenOptions, out hobj, out compCode, out reason);
}
finally
{
if (intPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(intPtr);
}
}
}
if (compCode != MQC.MQCC_OK)
{
throw new MQException(compCode, reason);
}
objectHandle = hobj;
ObjectName = od.ObjectName;
ObjectType = od.ObjectType;
}
