1 /*
2 * Copyright (c) 2013, 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_implementation/g1/g1CollectedHeap.inline.hpp"
27 #include "gc_implementation/g1/g1GCPhaseTimes.hpp"
28 #include "gc_implementation/g1/g1Log.hpp"
29 #include "gc_implementation/g1/g1StringDedup.hpp"
30 #include "memory/allocation.hpp"
31 #include "runtime/os.hpp"
32
33 // Helper class for avoiding interleaved logging
34 class LineBuffer: public StackObj {
35
36 private:
37 static const int BUFFER_LEN = 1024;
38 static const int INDENT_CHARS = 3;
39 char _buffer[BUFFER_LEN];
40 int _indent_level;
41 int _cur;
42
43 void vappend(const char* format, va_list ap) ATTRIBUTE_PRINTF(2, 0) {
44 int res = vsnprintf(&_buffer[_cur], BUFFER_LEN - _cur, format, ap);
45 if (res != -1) {
46 _cur += res;
47 } else {
48 DEBUG_ONLY(warning("buffer too small in LineBuffer");)
49 _buffer[BUFFER_LEN -1] = 0;
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1 /*
2 * Copyright (c) 2013, 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/g1CollectedHeap.inline.hpp"
27 #include "gc/g1/g1GCPhaseTimes.hpp"
28 #include "gc/g1/g1Log.hpp"
29 #include "gc/g1/g1StringDedup.hpp"
30 #include "memory/allocation.hpp"
31 #include "runtime/os.hpp"
32
33 // Helper class for avoiding interleaved logging
34 class LineBuffer: public StackObj {
35
36 private:
37 static const int BUFFER_LEN = 1024;
38 static const int INDENT_CHARS = 3;
39 char _buffer[BUFFER_LEN];
40 int _indent_level;
41 int _cur;
42
43 void vappend(const char* format, va_list ap) ATTRIBUTE_PRINTF(2, 0) {
44 int res = vsnprintf(&_buffer[_cur], BUFFER_LEN - _cur, format, ap);
45 if (res != -1) {
46 _cur += res;
47 } else {
48 DEBUG_ONLY(warning("buffer too small in LineBuffer");)
49 _buffer[BUFFER_LEN -1] = 0;
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