internal static bool AllocateHandle(ODBCHType handleType, ODBCHEnvironment inputHandle, out IntPtr outputHandle)
{
IntPtr handle;
var result = ODBCNativeMethods.SQLAllocHandle(handleType, inputHandle, out handle);
outputHandle = handle;
if ((result != ODBCResult.Success) & (result != ODBCResult.SuccessWithInfo))
{
throw GetException(inputHandle, "Error allocating connection handle");
}
return(true);
}
internal static IntPtr AllocateEnvironmentHandle()
{
IntPtr handle;
var result = ODBCNativeMethods.SQLAllocHandle(ODBCHType.Environment, IntPtr.Zero, out handle);
if ((result != ODBCResult.Success) && (result != ODBCResult.SuccessWithInfo))
{
throw new ODBCAPIError("Unable to allocate ODBC environment handle.");
}
return(handle);
}
internal static bool AllocateHandle(ODBCHType handleType, IntPtr inputHandle, out IntPtr outputHandle)
{
IntPtr handle = IntPtr.Zero;
var result = ODBCNativeMethods.SQLAllocHandle(handleType, inputHandle, out handle);
outputHandle = handle;
if ((result != ODBCResult.Success) & (result != ODBCResult.SuccessWithInfo))
{
throw new ODBCAPIError("Can't allocate environment handle ");
}
return(true);
}
internal static IntPtr AllocateStatementHandle(ODBCHConnection connectionHandle)
{
if (connectionHandle == null)
{
throw new ArgumentNullException("connectionHandle");
}
IntPtr handle;
var result = ODBCNativeMethods.SQLAllocHandle(ODBCHType.Statement, connectionHandle, out handle);
if ((result == ODBCResult.Success) || (result == ODBCResult.SuccessWithInfo))
{
return(handle);
}
var ex = GetException(connectionHandle, "Unable to allocate ODBC statement handle.");
throw ex;
}