1 /*
2 * Copyright (c) 2003, 2004, 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 class defaultStream : public xmlTextStream {
26 friend void ostream_abort();
27 public:
28 enum { NO_WRITER = -1 };
29 private:
30 bool _inited;
31 fileStream* _log_file; // XML-formatted file shared by all threads
32 static int _output_fd;
33 static int _error_fd;
34 static FILE* _output_stream;
35 static FILE* _error_stream;
36
37 void init();
38 void init_log();
39 void finish_log();
40 void finish_log_on_error(char *buf, int buflen);
41 public:
42 // must defer time stamp due to the fact that os::init() hasn't
43 // yet been called and os::elapsed_counter() may not be valid
44 defaultStream() {
71 // once we can determine whether we are in a signal handler, we
72 // should add the following assert here:
73 // assert(xxxxxx, "can not flush buffer inside signal handler");
74 xmlTextStream::flush();
75 fflush(output_stream());
76 if (has_log_file()) _log_file->flush();
77 }
78
79 // advisory lock/unlock of _writer field:
80 private:
81 intx _writer; // thread_id with current rights to output
82 intx _last_writer;
83 public:
84 intx hold(intx writer_id);
85 void release(intx holder);
86 intx writer() { return _writer; }
87 bool has_log_file();
88
89 static defaultStream* instance; // sole instance
90 };
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1 /*
2 * Copyright (c) 2003, 2010, 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 #ifndef SHARE_VM_UTILITIES_DEFAULTSTREAM_HPP
26 #define SHARE_VM_UTILITIES_DEFAULTSTREAM_HPP
27
28 #include "utilities/xmlstream.hpp"
29
30 class defaultStream : public xmlTextStream {
31 friend void ostream_abort();
32 public:
33 enum { NO_WRITER = -1 };
34 private:
35 bool _inited;
36 fileStream* _log_file; // XML-formatted file shared by all threads
37 static int _output_fd;
38 static int _error_fd;
39 static FILE* _output_stream;
40 static FILE* _error_stream;
41
42 void init();
43 void init_log();
44 void finish_log();
45 void finish_log_on_error(char *buf, int buflen);
46 public:
47 // must defer time stamp due to the fact that os::init() hasn't
48 // yet been called and os::elapsed_counter() may not be valid
49 defaultStream() {
76 // once we can determine whether we are in a signal handler, we
77 // should add the following assert here:
78 // assert(xxxxxx, "can not flush buffer inside signal handler");
79 xmlTextStream::flush();
80 fflush(output_stream());
81 if (has_log_file()) _log_file->flush();
82 }
83
84 // advisory lock/unlock of _writer field:
85 private:
86 intx _writer; // thread_id with current rights to output
87 intx _last_writer;
88 public:
89 intx hold(intx writer_id);
90 void release(intx holder);
91 intx writer() { return _writer; }
92 bool has_log_file();
93
94 static defaultStream* instance; // sole instance
95 };
96
97 #endif // SHARE_VM_UTILITIES_DEFAULTSTREAM_HPP
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