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 "prims/jvm.h"
  30 #include "runtime/arguments.hpp"
  31 #include "runtime/os.inline.hpp"
  32 #include "utilities/globalDefinitions.hpp"
  33 #include "utilities/defaultStream.hpp"
  34 
  35 const char* LogFileOutput::Prefix = "file=";
  36 const char* LogFileOutput::FileOpenMode = "a";
  37 const char* LogFileOutput::PidFilenamePlaceholder = "%p";
  38 const char* LogFileOutput::TimestampFilenamePlaceholder = "%t";
  39 const char* LogFileOutput::TimestampFormat = "%Y-%m-%d_%H-%M-%S";
  40 const char* LogFileOutput::FileSizeOptionKey = "filesize";
  41 const char* LogFileOutput::FileCountOptionKey = "filecount";
  42 char        LogFileOutput::_pid_str[PidBufferSize];
  43 char        LogFileOutput::_vm_start_time_str[StartTimeBufferSize];
  44 
  45 LogFileOutput::LogFileOutput(const char* name)
  46     : LogFileStreamOutput(NULL), _name(os::strdup_check_oom(name, mtLogging)),
  47       _file_name(NULL), _archive_name(NULL), _archive_name_len(0),
  48       _rotate_size(DefaultFileSize), _file_count(DefaultFileCount),
  49       _current_size(0), _current_file(0), _rotation_semaphore(1) {
  50   assert(strstr(name, Prefix) == name, "invalid output name '%s': missing prefix: %s", name, Prefix);
  51   _file_name = make_file_name(name + strlen(Prefix), _pid_str, _vm_start_time_str);
  52 }
  53 
  54 void LogFileOutput::set_file_name_parameters(jlong vm_start_time) {
  55   int res = jio_snprintf(_pid_str, sizeof(_pid_str), "%d", os::current_process_id());
  56   assert(res > 0, "PID buffer too small");
  57 
  58   struct tm local_time;
  59   time_t utc_time = vm_start_time / 1000;
  60   os::localtime_pd(&utc_time, &local_time);
  61   res = (int)strftime(_vm_start_time_str, sizeof(_vm_start_time_str), TimestampFormat, &local_time);

  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 "prims/jvm.h"
  30 #include "runtime/arguments.hpp"
  31 #include "runtime/os.inline.hpp"
  32 #include "utilities/globalDefinitions.hpp"
  33 #include "utilities/defaultStream.hpp"
  34 
  35 const char* const LogFileOutput::Prefix = "file=";
  36 const char* const LogFileOutput::FileOpenMode = "a";
  37 const char* const LogFileOutput::PidFilenamePlaceholder = "%p";
  38 const char* const LogFileOutput::TimestampFilenamePlaceholder = "%t";
  39 const char* const LogFileOutput::TimestampFormat = "%Y-%m-%d_%H-%M-%S";
  40 const char* const LogFileOutput::FileSizeOptionKey = "filesize";
  41 const char* const LogFileOutput::FileCountOptionKey = "filecount";
  42 char        LogFileOutput::_pid_str[PidBufferSize];
  43 char        LogFileOutput::_vm_start_time_str[StartTimeBufferSize];
  44 
  45 LogFileOutput::LogFileOutput(const char* name)
  46     : LogFileStreamOutput(NULL), _name(os::strdup_check_oom(name, mtLogging)),
  47       _file_name(NULL), _archive_name(NULL), _archive_name_len(0),
  48       _rotate_size(DefaultFileSize), _file_count(DefaultFileCount),
  49       _current_size(0), _current_file(0), _rotation_semaphore(1) {
  50   assert(strstr(name, Prefix) == name, "invalid output name '%s': missing prefix: %s", name, Prefix);
  51   _file_name = make_file_name(name + strlen(Prefix), _pid_str, _vm_start_time_str);
  52 }
  53 
  54 void LogFileOutput::set_file_name_parameters(jlong vm_start_time) {
  55   int res = jio_snprintf(_pid_str, sizeof(_pid_str), "%d", os::current_process_id());
  56   assert(res > 0, "PID buffer too small");
  57 
  58   struct tm local_time;
  59   time_t utc_time = vm_start_time / 1000;
  60   os::localtime_pd(&utc_time, &local_time);
  61   res = (int)strftime(_vm_start_time_str, sizeof(_vm_start_time_str), TimestampFormat, &local_time);