1// Copyright (c) 2007, Google Inc.
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met:
7//
8// * Redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer.
10// * Redistributions in binary form must reproduce the above
11// copyright notice, this list of conditions and the following disclaimer
12// in the documentation and/or other materials provided with the
13// distribution.
14// * Neither the name of Google Inc. nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30#ifndef BASE_LOG_SEVERITY_H__
31#define BASE_LOG_SEVERITY_H__
32
33// Annoying stuff for windows -- makes sure clients can import these functions
34#ifndef GOOGLE_GLOG_DLL_DECL
35# if defined(_WIN32) && !defined(__CYGWIN__)
36# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
37# else
38# define GOOGLE_GLOG_DLL_DECL
39# endif
40#endif
41
42// Variables of type LogSeverity are widely taken to lie in the range
43// [0, NUM_SEVERITIES-1]. Be careful to preserve this assumption if
44// you ever need to change their values or add a new severity.
45typedef int LogSeverity;
46
47const int GLOG_INFO = 0, GLOG_WARNING = 1, GLOG_ERROR = 2, GLOG_FATAL = 3,
48 NUM_SEVERITIES = 4;
49#ifndef GLOG_NO_ABBREVIATED_SEVERITIES
50# ifdef ERROR
51# error ERROR macro is defined. Define GLOG_NO_ABBREVIATED_SEVERITIES before including logging.h. See the document for detail.
52# endif
53const int INFO = GLOG_INFO, WARNING = GLOG_WARNING,
54 ERROR = GLOG_ERROR, FATAL = GLOG_FATAL;
55#endif
56
57// DFATAL is FATAL in debug mode, ERROR in normal mode
58#ifdef NDEBUG
59#define DFATAL_LEVEL ERROR
60#else
61#define DFATAL_LEVEL FATAL
62#endif
63
64extern GOOGLE_GLOG_DLL_DECL const char* const LogSeverityNames[NUM_SEVERITIES];
65
66// NDEBUG usage helpers related to (RAW_)DCHECK:
67//
68// DEBUG_MODE is for small !NDEBUG uses like
69// if (DEBUG_MODE) foo.CheckThatFoo();
70// instead of substantially more verbose
71// #ifndef NDEBUG
72// foo.CheckThatFoo();
73// #endif
74//
75// IF_DEBUG_MODE is for small !NDEBUG uses like
76// IF_DEBUG_MODE( string error; )
77// DCHECK(Foo(&error)) << error;
78// instead of substantially more verbose
79// #ifndef NDEBUG
80// string error;
81// DCHECK(Foo(&error)) << error;
82// #endif
83//
84#ifdef NDEBUG
85enum { DEBUG_MODE = 0 };
86#define IF_DEBUG_MODE(x)
87#else
88enum { DEBUG_MODE = 1 };
89#define IF_DEBUG_MODE(x) x
90#endif
91
92#endif // BASE_LOG_SEVERITY_H__
93