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 #ifndef SHARE_VM_LOGGING_LOGFILEOUTPUT_HPP
25 #define SHARE_VM_LOGGING_LOGFILEOUTPUT_HPP
26 #include "logging/logFileStreamOutput.hpp"
27 #include "utilities/globalDefinitions.hpp"
28 #include "runtime/mutex.hpp"
29
30 class LogDecorations;
31
32 // The log file output, with support for file rotation based on a target size.
33 class LogFileOutput : public LogFileStreamOutput {
34 private:
35 static const char* FileOpenMode;
36 static const char* FileCountOptionKey;
37 static const char* FileSizeOptionKey;
38 static const char* PidFilenamePlaceholder;
39 static const char* TimestampFilenamePlaceholder;
40 static const char* TimestampFormat;
41 static const size_t StartTimeBufferSize = 20;
42 static const size_t PidBufferSize = 21;
43 static char _pid_str[PidBufferSize];
44 static char _vm_start_time_str[StartTimeBufferSize];
45
46 Mutex _rotation_lock;
47 const char* _name;
48 char* _file_name;
61 bool configure_rotation(const char* options);
62 char *make_file_name(const char* file_name, const char* pid_string, const char* timestamp_string);
63 static size_t parse_value(const char* value_str);
64
65 bool should_rotate() const {
66 return _file_count > 0 && _rotate_size > 0 && _current_size >= _rotate_size;
67 }
68
69 public:
70 LogFileOutput(const char *name);
71 virtual ~LogFileOutput();
72 virtual bool initialize(const char* options);
73 virtual int write(const LogDecorations& decorations, const char* msg);
74
75 virtual const char* name() const {
76 return _name;
77 }
78
79 static void set_file_name_parameters(jlong start_time);
80 };
81 #endif
|
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 #ifndef SHARE_VM_LOGGING_LOGFILEOUTPUT_HPP
25 #define SHARE_VM_LOGGING_LOGFILEOUTPUT_HPP
26
27 #include "logging/logFileStreamOutput.hpp"
28 #include "runtime/mutex.hpp"
29 #include "utilities/globalDefinitions.hpp"
30
31 class LogDecorations;
32
33 // The log file output, with support for file rotation based on a target size.
34 class LogFileOutput : public LogFileStreamOutput {
35 private:
36 static const char* FileOpenMode;
37 static const char* FileCountOptionKey;
38 static const char* FileSizeOptionKey;
39 static const char* PidFilenamePlaceholder;
40 static const char* TimestampFilenamePlaceholder;
41 static const char* TimestampFormat;
42 static const size_t StartTimeBufferSize = 20;
43 static const size_t PidBufferSize = 21;
44 static char _pid_str[PidBufferSize];
45 static char _vm_start_time_str[StartTimeBufferSize];
46
47 Mutex _rotation_lock;
48 const char* _name;
49 char* _file_name;
62 bool configure_rotation(const char* options);
63 char *make_file_name(const char* file_name, const char* pid_string, const char* timestamp_string);
64 static size_t parse_value(const char* value_str);
65
66 bool should_rotate() const {
67 return _file_count > 0 && _rotate_size > 0 && _current_size >= _rotate_size;
68 }
69
70 public:
71 LogFileOutput(const char *name);
72 virtual ~LogFileOutput();
73 virtual bool initialize(const char* options);
74 virtual int write(const LogDecorations& decorations, const char* msg);
75
76 virtual const char* name() const {
77 return _name;
78 }
79
80 static void set_file_name_parameters(jlong start_time);
81 };
82
83 #endif // SHARE_VM_LOGGING_LOGFILEOUTPUT_HPP
|