1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 #include "precompiled.hpp" 25 #include "logging/logDecorators.hpp" 26 #include "logging/logDecorations.hpp" 27 #include "logging/logFileStreamOutput.hpp" 28 #include "logging/logMessageBuffer.hpp" 29 #include "memory/allocation.inline.hpp" 30 31 LogStdoutOutput LogStdoutOutput::_instance; 32 LogStderrOutput LogStderrOutput::_instance; 33 34 int LogFileStreamOutput::write_decorations(char* buffer, 35 size_t buffer_length, 36 const LogDecorations& decorations) { 37 int total_written = 0; 38 char* position = buffer; 39 40 for (uint i = 0; i < LogDecorators::Count; i++) { 41 LogDecorators::Decorator decorator = static_cast<LogDecorators::Decorator>(i); 42 if (!_decorators.is_decorator(decorator)) { 43 continue; 44 } 45 46 int written = jio_snprintf(position, buffer_length - total_written, "[%-*s]", 47 _decorator_padding[decorator], decorations.decoration(decorator)); 48 if (written <= 0) { 49 return -1; 50 } else if (static_cast<size_t>(written - 2) > _decorator_padding[decorator]) { 51 _decorator_padding[decorator] = written - 2; 52 } 53 position += written; 54 total_written += written; 55 } 56 return total_written; 57 } 58 59 int LogFileStreamOutput::write(const LogDecorations& decorations, const char* msg) { 60 const bool use_decorations = !_decorators.is_empty(); 61 62 int written; 63 if (use_decorations) { 64 char decoration_buf[LogDecorations::DecorationsBufferSize]; 65 write_decorations(decoration_buf, sizeof(decoration_buf), decorations); 66 written = jio_fprintf(_stream, "%s %s\n", decoration_buf, msg); 67 } else { 68 written = jio_fprintf(_stream, "%s\n", msg); 69 } 70 fflush(_stream); 71 72 return written; 73 } 74 75 int LogFileStreamOutput::write(LogMessageBuffer::Iterator msg_iterator) { 76 const bool use_decorations = !_decorators.is_empty(); 77 char decoration_buf[LogDecorations::DecorationsBufferSize]; 78 79 int written = 0; 80 os::flockfile(_stream); 81 LogLevelType previous_level = LogLevel::Invalid; 82 for (; !msg_iterator.is_at_end(); msg_iterator++) { 83 if (use_decorations) { 84 const LogDecorations& decorations = msg_iterator.decorations(); 85 // Write decorators the first time, and re-write them if the level changed. 86 if (written == 0 || decorations.level() != previous_level) { 87 write_decorations(decoration_buf, sizeof(decoration_buf), decorations); 88 previous_level = decorations.level(); 89 } 90 written += jio_fprintf(_stream, "%s %s\n", decoration_buf, msg_iterator.message()); 91 } else { 92 written += jio_fprintf(_stream, "%s\n", msg_iterator.message()); 93 } 94 } 95 fflush(_stream); 96 os::funlockfile(_stream); 97 98 return written; 99 }