/// <summary>
/// Starts the debug string capture
/// <param name="filename">The file of the zipfile to capture the debug string output in</param>
/// <param name="process">The process to filter the debug string output for</param>
/// </summary>
public static void StartCapture(string filename, Process process)
{
m_Filename = filename;
if (process == null)
{
m_PID = 0;
}
else
{
m_PID = process.Id;
}
lock (m_SyncRoot)
{
if (m_Capturer != null)
{
throw new ApplicationException("DebugString capture is already started");
}
// Check for multiple instances
m_Mutex = new Mutex(false, typeof(DebugString).Namespace, out bool createdNew);
if (!createdNew)
{
throw new ApplicationException("There is already an instance running");
}
//NM.SECURITY_ATTRIBUTES sa = new NM.SECURITY_ATTRIBUTES();
//sa.lpSecurityDescriptor = IntPtr.Zero;
IntPtr sa = IntPtr.Zero;
// Create the event for slot 'DBWIN_BUFFER_READY'
m_AckEvent = NM.CreateEvent(sa, false, false, "DBWIN_BUFFER_READY");
if (m_AckEvent == IntPtr.Zero)
{
throw CreateApplicationException("Failed to create event 'DBWIN_BUFFER_READY'");
}
// Create the event for slot 'DBWIN_DATA_READY'
m_ReadyEvent = NM.CreateEvent(sa, false, false, "DBWIN_DATA_READY");
if (m_ReadyEvent == IntPtr.Zero)
{
throw CreateApplicationException("Failed to create event 'DBWIN_DATA_READY'");
}
// Get a handle to the readable shared memory at slot 'DBWIN_BUFFER'.
m_SharedFile = NM.CreateFileMapping(new IntPtr(-1), sa, NM.PageProtection.ReadWrite, 0, 4096, "DBWIN_BUFFER");
if (m_SharedFile == IntPtr.Zero)
{
throw CreateApplicationException("Failed to create a file mapping to slot 'DBWIN_BUFFER'");
}
// Create a view for this file mapping so we can access it
m_SharedMem = NM.MapViewOfFile(m_SharedFile, NM.FileMapAccess.FileMapRead, 0, 0, new IntPtr(512));
if (m_SharedMem == IntPtr.Zero)
{
throw CreateApplicationException("Failed to create a mapping view for slot 'DBWIN_BUFFER'");
}
//create the file
m_tw = new StreamWriter(Path.GetDirectoryName(m_Filename) + @"\" + Path.GetFileNameWithoutExtension(m_Filename) + @".txt");
// Start a new thread where we can capture the output
// of OutputDebugString calls so we don't block here.
m_Capturer = new Thread(new ThreadStart(Capture));
m_Capturer.Start();
}
}
