1 /* 2 * Copyright (c) 2012, 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 25 #include "precompiled.hpp" 26 #include "gc/g1/g1Log.hpp" 27 #include "gc/g1/g1_globals.hpp" 28 #include "runtime/globals_extension.hpp" 29 30 G1Log::LogLevel G1Log::_level = G1Log::LevelNone; 31 32 33 // Updates _level based on PrintGC and PrintGCDetails values (unless 34 // G1LogLevel is set explicitly) 35 // - PrintGC maps to "fine". 36 // - PrintGCDetails maps to "finer". 37 void G1Log::update_level() { 38 if (FLAG_IS_DEFAULT(G1LogLevel)) { 39 _level = LevelNone; 40 if (PrintGCDetails) { 41 _level = LevelFiner; 42 } else if (PrintGC) { 43 _level = LevelFine; 44 } 45 } 46 } 47 48 49 // If G1LogLevel has not been set up we will use the values of PrintGC 50 // and PrintGCDetails for the logging level. 51 void G1Log::init() { 52 if (!FLAG_IS_DEFAULT(G1LogLevel)) { 53 // PrintGC flags change won't have any affect, because G1LogLevel 54 // is set explicitly 55 if (G1LogLevel[0] == '\0' || strncmp("none", G1LogLevel, 4) == 0 && G1LogLevel[4] == '\0') { 56 _level = LevelNone; 57 } else if (strncmp("fine", G1LogLevel, 4) == 0 && G1LogLevel[4] == '\0') { 58 _level = LevelFine; 59 } else if (strncmp("finer", G1LogLevel, 5) == 0 && G1LogLevel[5] == '\0') { 60 _level = LevelFiner; 61 } else if (strncmp("finest", G1LogLevel, 6) == 0 && G1LogLevel[6] == '\0') { 62 _level = LevelFinest; 63 } else { 64 warning("Unknown logging level '%s', should be one of 'fine', 'finer' or 'finest'.", G1LogLevel); 65 } 66 } else { 67 update_level(); 68 } 69 } 70