You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
2.8 KiB
109 lines
2.8 KiB
// Copyright 2009 The RE2 Authors. All Rights Reserved. |
|
// Use of this source code is governed by a BSD-style |
|
// license that can be found in the LICENSE file. |
|
|
|
#ifndef UTIL_LOGGING_H_ |
|
#define UTIL_LOGGING_H_ |
|
|
|
// Simplified version of Google's logging. |
|
|
|
#include <assert.h> |
|
#include <stdio.h> |
|
#include <stdlib.h> |
|
#include <ostream> |
|
#include <sstream> |
|
|
|
#include "util/util.h" |
|
|
|
// Debug-only checking. |
|
#define DCHECK(condition) assert(condition) |
|
#define DCHECK_EQ(val1, val2) assert((val1) == (val2)) |
|
#define DCHECK_NE(val1, val2) assert((val1) != (val2)) |
|
#define DCHECK_LE(val1, val2) assert((val1) <= (val2)) |
|
#define DCHECK_LT(val1, val2) assert((val1) < (val2)) |
|
#define DCHECK_GE(val1, val2) assert((val1) >= (val2)) |
|
#define DCHECK_GT(val1, val2) assert((val1) > (val2)) |
|
|
|
// Always-on checking |
|
#define CHECK(x) if(x){}else LogMessageFatal(__FILE__, __LINE__).stream() << "Check failed: " #x |
|
#define CHECK_LT(x, y) CHECK((x) < (y)) |
|
#define CHECK_GT(x, y) CHECK((x) > (y)) |
|
#define CHECK_LE(x, y) CHECK((x) <= (y)) |
|
#define CHECK_GE(x, y) CHECK((x) >= (y)) |
|
#define CHECK_EQ(x, y) CHECK((x) == (y)) |
|
#define CHECK_NE(x, y) CHECK((x) != (y)) |
|
|
|
#define LOG_INFO LogMessage(__FILE__, __LINE__) |
|
#define LOG_WARNING LogMessage(__FILE__, __LINE__) |
|
#define LOG_ERROR LogMessage(__FILE__, __LINE__) |
|
#define LOG_FATAL LogMessageFatal(__FILE__, __LINE__) |
|
#define LOG_QFATAL LOG_FATAL |
|
|
|
// It seems that one of the Windows header files defines ERROR as 0. |
|
#ifdef _WIN32 |
|
#define LOG_0 LOG_INFO |
|
#endif |
|
|
|
#ifdef NDEBUG |
|
#define LOG_DFATAL LOG_ERROR |
|
#else |
|
#define LOG_DFATAL LOG_FATAL |
|
#endif |
|
|
|
#define LOG(severity) LOG_ ## severity.stream() |
|
|
|
#define VLOG(x) if((x)>0){}else LOG_INFO.stream() |
|
|
|
class LogMessage { |
|
public: |
|
LogMessage(const char* file, int line) |
|
: flushed_(false) { |
|
stream() << file << ":" << line << ": "; |
|
} |
|
void Flush() { |
|
stream() << "\n"; |
|
string s = str_.str(); |
|
size_t n = s.size(); |
|
if (fwrite(s.data(), 1, n, stderr) < n) {} // shut up gcc |
|
flushed_ = true; |
|
} |
|
~LogMessage() { |
|
if (!flushed_) { |
|
Flush(); |
|
} |
|
} |
|
std::ostream& stream() { return str_; } |
|
|
|
private: |
|
bool flushed_; |
|
std::ostringstream str_; |
|
|
|
LogMessage(const LogMessage&) = delete; |
|
LogMessage& operator=(const LogMessage&) = delete; |
|
}; |
|
|
|
// Silence "destructor never returns" warning for ~LogMessageFatal(). |
|
// Since this is a header file, push and then pop to limit the scope. |
|
#ifdef _MSC_VER |
|
#pragma warning(push) |
|
#pragma warning(disable: 4722) |
|
#endif |
|
|
|
class LogMessageFatal : public LogMessage { |
|
public: |
|
LogMessageFatal(const char* file, int line) |
|
: LogMessage(file, line) {} |
|
~LogMessageFatal() { |
|
Flush(); |
|
abort(); |
|
} |
|
private: |
|
LogMessageFatal(const LogMessageFatal&) = delete; |
|
LogMessageFatal& operator=(const LogMessageFatal&) = delete; |
|
}; |
|
|
|
#ifdef _MSC_VER |
|
#pragma warning(pop) |
|
#endif |
|
|
|
#endif // UTIL_LOGGING_H_
|
|
|