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src/share/vm/logging/logFileOutput.cpp

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   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/log.hpp"
  26 #include "logging/logConfiguration.hpp"
  27 #include "logging/logFileOutput.hpp"
  28 #include "memory/allocation.inline.hpp"

  29 #include "runtime/os.inline.hpp"
  30 #include "utilities/globalDefinitions.hpp"
  31 #include "utilities/defaultStream.hpp"
  32 
  33 const char* LogFileOutput::FileOpenMode = "a";
  34 const char* LogFileOutput::PidFilenamePlaceholder = "%p";
  35 const char* LogFileOutput::TimestampFilenamePlaceholder = "%t";
  36 const char* LogFileOutput::TimestampFormat = "%Y-%m-%d_%H-%M-%S";
  37 const char* LogFileOutput::FileSizeOptionKey = "filesize";
  38 const char* LogFileOutput::FileCountOptionKey = "filecount";
  39 char        LogFileOutput::_pid_str[PidBufferSize];
  40 char        LogFileOutput::_vm_start_time_str[StartTimeBufferSize];
  41 
  42 LogFileOutput::LogFileOutput(const char* name)
  43     : LogFileStreamOutput(NULL), _name(os::strdup_check_oom(name, mtLogging)),
  44       _file_name(NULL), _archive_name(NULL), _archive_name_len(0), _current_size(0),
  45       _rotate_size(0), _current_file(1), _file_count(0), _rotation_semaphore(1) {
  46   _file_name = make_file_name(name, _pid_str, _vm_start_time_str);
  47 }
  48 


  99     char* equals_pos = strchr(pos, '=');
 100     if (equals_pos == NULL) {
 101       success = false;
 102       break;
 103     }
 104     char* key = pos;
 105     char* value_str = equals_pos + 1;
 106     *equals_pos = '\0';
 107 
 108     if (strcmp(FileCountOptionKey, key) == 0) {
 109       size_t value = parse_value(value_str);
 110       if (value == SIZE_MAX || value >= UINT_MAX) {
 111         success = false;
 112         break;
 113       }
 114       _file_count = static_cast<uint>(value);
 115       _file_count_max_digits = static_cast<uint>(log10(static_cast<double>(_file_count)) + 1);
 116       _archive_name_len = 2 + strlen(_file_name) + _file_count_max_digits;
 117       _archive_name = NEW_C_HEAP_ARRAY(char, _archive_name_len, mtLogging);
 118     } else if (strcmp(FileSizeOptionKey, key) == 0) {
 119       size_t value = parse_value(value_str);
 120       if (value == SIZE_MAX || value > SIZE_MAX / K) {
 121         success = false;
 122         break;
 123       }
 124       _rotate_size = value * K;
 125     } else {
 126       success = false;
 127       break;
 128     }
 129     pos = comma_pos + 1;
 130   } while (comma_pos != NULL);
 131 
 132   os::free(opts);
 133   return success;
 134 }
 135 
 136 bool LogFileOutput::initialize(const char* options) {
 137   if (!configure_rotation(options)) {
 138     return false;
 139   }
 140   _stream = fopen(_file_name, FileOpenMode);
 141   if (_stream == NULL) {
 142     log_error(logging)("Could not open log file '%s' (%s).\n", _file_name, os::strerror(errno));
 143     return false;
 144   }




   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/log.hpp"
  26 #include "logging/logConfiguration.hpp"
  27 #include "logging/logFileOutput.hpp"
  28 #include "memory/allocation.inline.hpp"
  29 #include "runtime/arguments.hpp"
  30 #include "runtime/os.inline.hpp"
  31 #include "utilities/globalDefinitions.hpp"
  32 #include "utilities/defaultStream.hpp"
  33 
  34 const char* LogFileOutput::FileOpenMode = "a";
  35 const char* LogFileOutput::PidFilenamePlaceholder = "%p";
  36 const char* LogFileOutput::TimestampFilenamePlaceholder = "%t";
  37 const char* LogFileOutput::TimestampFormat = "%Y-%m-%d_%H-%M-%S";
  38 const char* LogFileOutput::FileSizeOptionKey = "filesize";
  39 const char* LogFileOutput::FileCountOptionKey = "filecount";
  40 char        LogFileOutput::_pid_str[PidBufferSize];
  41 char        LogFileOutput::_vm_start_time_str[StartTimeBufferSize];
  42 
  43 LogFileOutput::LogFileOutput(const char* name)
  44     : LogFileStreamOutput(NULL), _name(os::strdup_check_oom(name, mtLogging)),
  45       _file_name(NULL), _archive_name(NULL), _archive_name_len(0), _current_size(0),
  46       _rotate_size(0), _current_file(1), _file_count(0), _rotation_semaphore(1) {
  47   _file_name = make_file_name(name, _pid_str, _vm_start_time_str);
  48 }
  49 


 100     char* equals_pos = strchr(pos, '=');
 101     if (equals_pos == NULL) {
 102       success = false;
 103       break;
 104     }
 105     char* key = pos;
 106     char* value_str = equals_pos + 1;
 107     *equals_pos = '\0';
 108 
 109     if (strcmp(FileCountOptionKey, key) == 0) {
 110       size_t value = parse_value(value_str);
 111       if (value == SIZE_MAX || value >= UINT_MAX) {
 112         success = false;
 113         break;
 114       }
 115       _file_count = static_cast<uint>(value);
 116       _file_count_max_digits = static_cast<uint>(log10(static_cast<double>(_file_count)) + 1);
 117       _archive_name_len = 2 + strlen(_file_name) + _file_count_max_digits;
 118       _archive_name = NEW_C_HEAP_ARRAY(char, _archive_name_len, mtLogging);
 119     } else if (strcmp(FileSizeOptionKey, key) == 0) {
 120       success = Arguments::atomull(value_str, &_rotate_size);





 121     } else {
 122       success = false;
 123       break;
 124     }
 125     pos = comma_pos + 1;
 126   } while (comma_pos != NULL);
 127 
 128   os::free(opts);
 129   return success;
 130 }
 131 
 132 bool LogFileOutput::initialize(const char* options) {
 133   if (!configure_rotation(options)) {
 134     return false;
 135   }
 136   _stream = fopen(_file_name, FileOpenMode);
 137   if (_stream == NULL) {
 138     log_error(logging)("Could not open log file '%s' (%s).\n", _file_name, os::strerror(errno));
 139     return false;
 140   }


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