1 /*
   2  * Copyright (c) 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 #include "precompiled.hpp"
  25 #include "logging/logConfiguration.hpp"
  26 #include "logging/logDecorations.hpp"
  27 #include "runtime/os.inline.hpp"
  28 #include "runtime/thread.inline.hpp"
  29 #include "services/management.hpp"
  30 
  31 jlong LogDecorations::_vm_start_time_millis = 0;
  32 
  33 LogDecorations::LogDecorations(LogLevelType level, const LogTagSet &tagset, const LogDecorators &decorators)
  34   : _level(level), _tagset(tagset), _millis(-1) {
  35   create_decorations(decorators);
  36 }
  37 
  38 void LogDecorations::create_decorations(const LogDecorators &decorators) {
  39   char* position = _decorations_buffer;
  40   #define DECORATOR(full_name, abbr) \
  41   if (decorators.is_decorator(LogDecorators::full_name##_decorator)) { \
  42     _decoration_offset[LogDecorators::full_name##_decorator] = position; \
  43     position = create_##full_name##_decoration(position) + 1; \
  44   }
  45   DECORATOR_LIST
  46 #undef DECORATOR
  47 }
  48 
  49 jlong LogDecorations::java_millis() {
  50   if (_millis < 0) {
  51     _millis = os::javaTimeMillis();
  52   }
  53   return _millis;
  54 }
  55 
  56 #define ASSERT_AND_RETURN(written, pos) \
  57     assert(written >= 0, "Decorations buffer overflow"); \
  58     return pos + written;
  59 
  60 char* LogDecorations::create_time_decoration(char* pos) {
  61   char* buf = os::iso8601_time(pos, 29);
  62   int written = buf == NULL ? -1 : 29;
  63   ASSERT_AND_RETURN(written, pos)
  64 }
  65 
  66 char * LogDecorations::create_uptime_decoration(char* pos) {
  67   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer), "%.3fs", os::elapsedTime());
  68   ASSERT_AND_RETURN(written, pos)
  69 }
  70 
  71 char * LogDecorations::create_timemillis_decoration(char* pos) {
  72   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer), INT64_FORMAT "ms", java_millis());
  73   ASSERT_AND_RETURN(written, pos)
  74 }
  75 
  76 char * LogDecorations::create_uptimemillis_decoration(char* pos) {
  77   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer),
  78                              INT64_FORMAT " ms", java_millis() - _vm_start_time_millis);
  79   ASSERT_AND_RETURN(written, pos)
  80 }
  81 
  82 char * LogDecorations::create_timenanos_decoration(char* pos) {
  83   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer), INT64_FORMAT "ns", os::javaTimeNanos());
  84   ASSERT_AND_RETURN(written, pos)
  85 }
  86 
  87 char * LogDecorations::create_uptimenanos_decoration(char* pos) {
  88   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer), INT64_FORMAT "ns", os::elapsed_counter());
  89   ASSERT_AND_RETURN(written, pos)
  90 }
  91 
  92 char * LogDecorations::create_pid_decoration(char* pos) {
  93   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer), "%d", os::current_process_id());
  94   ASSERT_AND_RETURN(written, pos)
  95 }
  96 
  97 char * LogDecorations::create_tid_decoration(char* pos) {
  98   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer),
  99                              INTX_FORMAT, Thread::current()->osthread()->thread_id());
 100   ASSERT_AND_RETURN(written, pos)
 101 }
 102 
 103 char* LogDecorations::create_level_decoration(char* pos) {
 104   int written = jio_snprintf(pos, DecorationsBufferSize - (pos - _decorations_buffer), "%s", LogLevel::name(_level));
 105   ASSERT_AND_RETURN(written, pos)
 106 }
 107 
 108 char* LogDecorations::create_tags_decoration(char* pos) {
 109   int written = _tagset.label(pos, DecorationsBufferSize - (pos - _decorations_buffer));
 110   ASSERT_AND_RETURN(written, pos)
 111 }