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Use prefixed macro names, allow suppressing unprefixed

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Alexey Rybalchenko 2020-03-02 10:13:12 +01:00
parent 86ab87de7b
commit d1f73fe9f0
2 changed files with 51 additions and 7 deletions
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8
README.md
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@ -207,6 +207,14 @@ Here is an example adding a custom sink for all severities ("trace" and above).
If only output from custom sinks is desirable, console/file sinks must be deactivated by setting their severity to `"nolog"`.
## Naming conflicts?
By default these macros are defined: `LOG`, `LOGV`, `LOGF`, `LOGP`, `LOGN`, `LOGD`, `LOG_IF` and `FAIR_LOG`, `FAIR_LOGV`, `FAIR_LOGF`, `FAIR_LOGP`, `FAIR_LOGN`, `FAIR_LOGD`, `FAIR_LOG_IF`.
If you experience naming conflicts with the unprefixed macro names, you can prevent their defining any of the following before including the `Logger.h`:
`FAIR_NO_LOG`, `FAIR_NO_LOGV`, `FAIR_NO_LOGF`, `FAIR_NO_LOGP`, `FAIR_NO_LOGN`, `FAIR_NO_LOGD`, `FAIR_NO_LOG_IF`.
## License
GNU Lesser General Public Licence (LGPL) version 3, see [LICENSE](LICENSE).

50
logger/Logger.h
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@ -356,31 +356,67 @@ class Logger
#define MSG_ORIGIN __FILE__, CONVERTTOSTRING(__LINE__), static_cast<const char*>(__FUNCTION__)
#endif
// allow user of this header file to prevent definition of the LOG macro, by defining FAIR_NO_LOG before including this header
#ifndef FAIR_NO_LOG
#undef LOG
#define LOG FAIR_LOG
#endif
// allow user of this header file to prevent definition of the LOGV macro, by defining FAIR_NO_LOGV before including this header
#ifndef FAIR_NO_LOGV
#undef LOGV
#define LOGV FAIR_LOGV
#endif
// allow user of this header file to prevent definition of the LOGF macro, by defining FAIR_NO_LOGF before including this header
#ifndef FAIR_NO_LOGF
#undef LOGF
#define LOGF FAIR_LOGF
#endif
// allow user of this header file to prevent definition of the LOGP macro, by defining FAIR_NO_LOGP before including this header
#ifndef FAIR_NO_LOGP
#undef LOGP
#define LOGP FAIR_LOGP
#endif
// allow user of this header file to prevent definition of the LOGN macro, by defining FAIR_NO_LOGN before including this header
#ifndef FAIR_NO_LOGN
#undef LOGN
#define LOGN FAIR_LOGN
#endif
// allow user of this header file to prevent definition of the LOGD macro, by defining FAIR_NO_LOGD before including this header
#ifndef FAIR_NO_LOGD
#undef LOGD
#define LOGD FAIR_LOGD
#endif
// allow user of this header file to prevent definition of the LOG_IF macro, by defining FAIR_NO_LOG_IF before including this header
#ifndef FAIR_NO_LOG_IF
#undef LOG_IF
#define LOG_IF FAIR_LOG_IF
#endif
// Log line if the provided severity is below or equals the configured one
#define LOG(severity) \
#define FAIR_LOG(severity) \
for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(fair::Severity::severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
fair::Logger(fair::Severity::severity, MSG_ORIGIN)
// Log line with the given verbosity if the provided severity is below or equals the configured one
#define LOGV(severity, verbosity) \
#define FAIR_LOGV(severity, verbosity) \
for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(fair::Severity::severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
fair::Logger(fair::Severity::severity, fair::Verbosity::verbosity, MSG_ORIGIN)
// Log with fmt- or printf-like formatting
#define LOGF(severity, ...) LOG(severity) << fmt::format(__VA_ARGS__)
#define LOGP(severity, ...) LOG(severity) << fmt::sprintf(__VA_ARGS__)
#define FAIR_LOGF(severity, ...) LOG(severity) << fmt::format(__VA_ARGS__)
#define FAIR_LOGP(severity, ...) LOG(severity) << fmt::sprintf(__VA_ARGS__)
// Log an empty line
#define LOGN(severity) \
#define FAIR_LOGN(severity) \
for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(fair::Severity::severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
fair::Logger(fair::Severity::severity, fair::Verbosity::verylow, MSG_ORIGIN).LogEmptyLine()
// Log with custom file, line, function
#define LOGD(severity, file, line, f) \
#define FAIR_LOGD(severity, file, line, f) \
for (bool fairLOggerunLikelyvariable = false; fair::Logger::Logging(severity) && !fairLOggerunLikelyvariable; fairLOggerunLikelyvariable = true) \
fair::Logger(severity, file, line, f)
#define LOG_IF(severity, condition) \
#define FAIR_LOG_IF(severity, condition) \
for (bool fairLOggerunLikelyvariable2 = false; condition && !fairLOggerunLikelyvariable2; fairLOggerunLikelyvariable2 = true) \
LOG(severity)