libjmmcg  release_579_6_g8cffd
A C++ library containing an eclectic mix of useful, advanced components.
AssertToNTLog.hpp
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1 /******************************************************************************
2 ** Copyright © 2002 by J.M.McGuiness, coder@hussar.me.uk
3 **
4 ** This library is free software; you can redistribute it and/or
5 ** modify it under the terms of the GNU Lesser General Public
6 ** License as published by the Free Software Foundation; either
7 ** version 2.1 of the License, or (at your option) any later version.
8 **
9 ** This library is distributed in the hope that it will be useful,
10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 ** Lesser General Public License for more details.
13 **
14 ** You should have received a copy of the GNU Lesser General Public
15 ** License along with this library; if not, write to the Free Software
16 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18 
19 #pragma once
20 
21 #include<cassert>
22 
23 /*
24  NOTE: All of this functionality is enabled ONLY in debug mode, i.e. if
25  "_DEBUG" is defined.
26  Handy for using in NT Services that don't have a user interface - send the
27  assertion to the NT Event Log.
28  Automatically logs the file and line number. Also the calling thread handle.
29  (Which is handy when multi-thread/process debugging!)
30  Include this file instead of <cassert> or <assert.h> if you want to log all
31  "assert(...)" expressions to the NT Event Log. (But only if you define the
32  macro constant "ASSERTIONS_TO_NT_LOG".)
33  Use "assert(...)" if you don't have an "EventLog" object in scope, otherwise
34  you can use "AssertLog(...)" instead which will make use of your provided
35  EventLog object.
36 */
37 
38 #ifdef _DEBUG
39 
40  namespace jmmcg {
41 
42  namespace LIBJMMCG_VER_NAMESPACE { namespace NTUtils {
43 
44  inline AFX_EXT_CLASS void __fastcall assertlog(const char *exp, const char *file_name, const unsigned long line);
45 
46  } }
47 
48 # define AssertLog(exp) (void)( (exp) || (jmmcg::LIBJMMCG_VER_NAMESPACE::NTUtils::assertlog(#exp, __FILE__, __LINE__), 0) )
49 # ifdef JMMCG_ASSERTIONS_TO_NT_LOG
50 # ifdef assert
51 # undef assert
52 # endif assert
53 # define assert(exp) AssertLog(exp)
54 # endif JMMCG_ASSERTIONS_TO_NT_LOG
55 
56 #else
57 # define AssertLog(assertion) ((void)0)
58 #endif _DEBUG