mirror of
https://github.com/ClickHouse/ClickHouse.git
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87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
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// Copyright 2009 The RE2 Authors. All Rights Reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Simplified version of Google's logging.
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#ifndef RE2_UTIL_LOGGING_H__
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#define RE2_UTIL_LOGGING_H__
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#include <unistd.h> /* for write */
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#include <sstream>
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// Debug-only checking.
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#define DCHECK(condition) assert(condition)
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#define DCHECK_EQ(val1, val2) assert((val1) == (val2))
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#define DCHECK_NE(val1, val2) assert((val1) != (val2))
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#define DCHECK_LE(val1, val2) assert((val1) <= (val2))
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#define DCHECK_LT(val1, val2) assert((val1) < (val2))
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#define DCHECK_GE(val1, val2) assert((val1) >= (val2))
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#define DCHECK_GT(val1, val2) assert((val1) > (val2))
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// Always-on checking
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#define CHECK(x) if(x){}else LogMessageFatal(__FILE__, __LINE__).stream() << "Check failed: " #x
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#define CHECK_LT(x, y) CHECK((x) < (y))
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#define CHECK_GT(x, y) CHECK((x) > (y))
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#define CHECK_LE(x, y) CHECK((x) <= (y))
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#define CHECK_GE(x, y) CHECK((x) >= (y))
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#define CHECK_EQ(x, y) CHECK((x) == (y))
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#define CHECK_NE(x, y) CHECK((x) != (y))
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#define LOG_INFO LogMessage(__FILE__, __LINE__)
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#define LOG_ERROR LOG_INFO
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#define LOG_WARNING LOG_INFO
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#define LOG_FATAL LogMessageFatal(__FILE__, __LINE__)
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#define LOG_QFATAL LOG_FATAL
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#define VLOG(x) if((x)>0){}else LOG_INFO.stream()
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#ifdef NDEBUG
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#define DEBUG_MODE 0
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#define LOG_DFATAL LOG_ERROR
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#else
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#define DEBUG_MODE 1
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#define LOG_DFATAL LOG_FATAL
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#endif
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#define LOG(severity) LOG_ ## severity.stream()
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class LogMessage {
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public:
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LogMessage(const char* file, int line) : flushed_(false) {
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stream() << file << ":" << line << ": ";
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}
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void Flush() {
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stream() << "\n";
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string s = str_.str();
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int n = (int)s.size(); // shut up msvc
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if(write(2, s.data(), n) < 0) {} // shut up gcc
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flushed_ = true;
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}
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~LogMessage() {
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if (!flushed_) {
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Flush();
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}
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}
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ostream& stream() { return str_; }
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private:
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bool flushed_;
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std::ostringstream str_;
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DISALLOW_EVIL_CONSTRUCTORS(LogMessage);
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};
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class LogMessageFatal : public LogMessage {
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public:
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LogMessageFatal(const char* file, int line)
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: LogMessage(file, line) { }
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~LogMessageFatal() {
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Flush();
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abort();
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}
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private:
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DISALLOW_EVIL_CONSTRUCTORS(LogMessageFatal);
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};
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#endif // RE2_UTIL_LOGGING_H__
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