1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "debug.h" 6 7 #include <stdlib.h> 8 #include <iostream> 9 #include <string> 10 11 namespace relocation_packer { 12 13 // Construct a new message logger. Prints if level is less than or equal to 14 // the level set with SetVerbose() and predicate is true. 15 Logger::Logger(Severity severity, int level, bool predicate) { 16 severity_ = severity; 17 level_ = level; 18 predicate_ = predicate; 19 } 20 21 // On destruction, flush and print the strings accumulated. Abort if FATAL. 22 Logger::~Logger() { 23 if (predicate_) { 24 if (level_ <= max_level_) { 25 std::ostream* log = severity_ == INFO ? info_stream_ : error_stream_; 26 std::string tag; 27 switch (severity_) { 28 case INFO: tag = "INFO"; break; 29 case WARNING: tag = "WARNING"; break; 30 case ERROR: tag = "ERROR"; break; 31 case FATAL: tag = "FATAL"; break; 32 } 33 stream_.flush(); 34 *log << tag << ": " << stream_.str() << std::endl; 35 } 36 if (severity_ == FATAL) 37 abort(); 38 } 39 } 40 41 // Reset to initial state. 42 void Logger::Reset() { 43 max_level_ = -1; 44 info_stream_ = &std::cout; 45 error_stream_ = &std::cerr; 46 } 47 48 // Verbosity. Not thread-safe. 49 int Logger::max_level_ = -1; 50 51 // Logging streams. Not thread-safe. 52 std::ostream* Logger::info_stream_ = &std::cout; 53 std::ostream* Logger::error_stream_ = &std::cerr; 54 55 } // namespace relocation_packer 56
