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 static bool initialized; 32 static union { 33 char stdoutmem[sizeof(LogStdoutOutput)]; 34 jlong dummy; 35 } aligned_stdoutmem; 36 static union { 37 char stderrmem[sizeof(LogStderrOutput)]; 38 jlong dummy; 39 } aligned_stderrmem; 40 41 LogStdoutOutput &StdoutLog = reinterpret_cast<LogStdoutOutput&>(aligned_stdoutmem.stdoutmem); 42 LogStderrOutput &StderrLog = reinterpret_cast<LogStderrOutput&>(aligned_stderrmem.stderrmem); 43 44 LogFileStreamInitializer::LogFileStreamInitializer() { 45 if (!initialized) { 46 ::new (&StdoutLog) LogStdoutOutput(); 47 ::new (&StderrLog) LogStderrOutput(); 48 initialized = true; 49 } 50 } 51 52 int LogFileStreamOutput::write_decorations(const LogDecorations& decorations) { 53 int total_written = 0; 54 55 for (uint i = 0; i < LogDecorators::Count; i++) { 56 LogDecorators::Decorator decorator = static_cast<LogDecorators::Decorator>(i); 57 if (!_decorators.is_decorator(decorator)) { 58 continue; 59 } 60 61 int written = jio_fprintf(_stream, "[%-*s]", 62 _decorator_padding[decorator], 63 decorations.decoration(decorator)); 64 if (written <= 0) { 65 return -1; 66 } else if (static_cast<size_t>(written - 2) > _decorator_padding[decorator]) { 67 _decorator_padding[decorator] = written - 2; 68 } 69 total_written += written; 70 } 71 return total_written; 72 } 73 74 int LogFileStreamOutput::write(const LogDecorations& decorations, const char* msg) { 75 const bool use_decorations = !_decorators.is_empty(); 76 77 int written = 0; 78 os::flockfile(_stream); 79 if (use_decorations) { 80 written += write_decorations(decorations); 81 written += jio_fprintf(_stream, " "); 82 } 83 written += jio_fprintf(_stream, "%s\n", msg); 84 fflush(_stream); 85 os::funlockfile(_stream); 86 87 return written; 88 } 89 90 int LogFileStreamOutput::write(LogMessageBuffer::Iterator msg_iterator) { 91 const bool use_decorations = !_decorators.is_empty(); 92 93 int written = 0; 94 os::flockfile(_stream); 95 for (; !msg_iterator.is_at_end(); msg_iterator++) { 96 if (use_decorations) { 97 written += write_decorations(msg_iterator.decorations()); 98 written += jio_fprintf(_stream, " "); 99 } 100 written += jio_fprintf(_stream, "%s\n", msg_iterator.message()); 101 } 102 fflush(_stream); 103 os::funlockfile(_stream); 104 105 return written; 106 }