private static int CreateSymbolReader(ISymUnmanagedBinder3 binder, IntPtr importer,
string filename, string searchPath, bool avoidLocks, out ISymUnmanagedReader reader)
{
if (!avoidLocks)
{
return(binder.GetReaderForFile(importer, filename, searchPath, out reader));
}
reader = null;
string pdbFilename = Path.ChangeExtension(filename, ".pdb");
if (!File.Exists(pdbFilename))
{
return(E_PDB_NOT_FOUND);
}
try
{
byte[] bytes = File.ReadAllBytes(pdbFilename);
#if USE_ISTREAM
IStream stream = new ComStream(new MemoryStream(bytes, 0, bytes.Length, false, true));
return(binder.GetReaderFromStream(importer, stream, out reader));
#else
IDiaReadExeAtOffsetCallback callback = new DiaReadExeAtOffsetCallback(bytes);
return(binder.GetReaderFromCallback(importer, filename, searchPath,
CorSymSearchPolicyAttributes.AllowReferencePathAccess, callback, out reader));
#endif
}
catch (IOException)
{
return(E_FAIL);
}
}
private static ISymUnmanagedReader CreateSymbolReader(string filename, string searchPath, bool avoidLocks)
{
// Guids for imported metadata interfaces.
Guid CLSID_CorMetaDataDispenser = new Guid(0xe5cb7a31, 0x7512, 0x11d2, 0x89, 0xce, 0x00, 0x80, 0xc7, 0x92, 0xe5, 0xd8);
Guid IID_IMetaDataImport = new Guid(0x7dac8207, 0xd3ae, 0x4c75, 0x9b, 0x67, 0x92, 0x80, 0x1a, 0x49, 0x7d, 0x44);
Guid CLSID_CorSymBinder = new Guid("0A29FF9E-7F9C-4437-8B11-F424491E3931");
// First create the Metadata dispenser.
IMetaDataDispenser dispenser = (IMetaDataDispenser)Activator.CreateInstance(Type.GetTypeFromCLSID(CLSID_CorMetaDataDispenser));
IntPtr importer = IntPtr.Zero;
try
{
int errorCode = dispenser.OpenScope(filename, 0, ref IID_IMetaDataImport, out importer);
if (errorCode < 0)
{
if (errorCode == E_FAIL ||
errorCode == E_FILE_NOT_FOUND)
{
return(null);
}
Marshal.ThrowExceptionForHR(errorCode);
}
ISymUnmanagedBinder3 binder = (ISymUnmanagedBinder3)Activator.CreateInstance(Type.GetTypeFromCLSID(CLSID_CorSymBinder));
ISymUnmanagedReader reader;
errorCode = CreateSymbolReader(binder, importer, filename, searchPath, avoidLocks, out reader);
if (errorCode < 0)
{
if (errorCode == E_FAIL ||
errorCode == E_PDB_DEBUG_INFO_NOT_IN_PDB ||
errorCode == E_PDB_NO_DEBUG_INFO ||
errorCode == E_PDB_NOT_FOUND)
{
return(null);
}
Marshal.ThrowExceptionForHR(errorCode);
}
return(reader);
}
finally
{
if (importer != IntPtr.Zero)
{
Marshal.Release(importer);
}
}
}
private static int CreateSymbolReader(ISymUnmanagedBinder3 binder, IntPtr importer,
string filename, string searchPath, bool avoidLocks, out ISymUnmanagedReader reader)
{
if (! avoidLocks)
return binder.GetReaderForFile(importer, filename, searchPath, out reader);
reader = null;
string pdbFilename = Path.ChangeExtension(filename, ".pdb");
if (!File.Exists(pdbFilename))
return E_PDB_NOT_FOUND;
try
{
byte[] bytes = File.ReadAllBytes(pdbFilename);
#if USE_ISTREAM
IStream stream = new ComStream(new MemoryStream(bytes, 0, bytes.Length, false, true));
return binder.GetReaderFromStream(importer, stream, out reader);
#else
IDiaReadExeAtOffsetCallback callback = new DiaReadExeAtOffsetCallback(bytes);
return binder.GetReaderFromCallback(importer, filename, searchPath,
CorSymSearchPolicyAttributes.AllowReferencePathAccess, callback, out reader);
#endif
}
catch (IOException)
{
return E_FAIL;
}
}
