mojo/logging/init_logging.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "mojo/logging/init_logging.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/logging.h"
   9
  10 namespace mojo {
  11 namespace logging {
  12 namespace {
  13
  14 ::logging::LoggingDestination DetermineLogMode(
  15     const base::CommandLine& command_line) {
  16   // only use OutputDebugString in debug mode
  17 #if defined(NDEBUG)
  18   bool enable_logging = false;
  19   const char* kInvertLoggingSwitch = "enable-logging";
  20 #else
  21   bool enable_logging = true;
  22   const char* kInvertLoggingSwitch = "disable-logging";
  23 #endif
  24   const ::logging::LoggingDestination kDefaultLoggingMode =
  25       ::logging::LOG_TO_SYSTEM_DEBUG_LOG;
  26
  27   if (command_line.HasSwitch(kInvertLoggingSwitch))
  28     enable_logging = !enable_logging;
  29
  30   return enable_logging ? kDefaultLoggingMode : ::logging::LOG_NONE;
  31 }
  32
  33 }  // namespace
  34
  35 void InitLogging() {
  36   ::logging::LoggingSettings settings;
  37   settings.logging_dest = DetermineLogMode(
  38       *base::CommandLine::ForCurrentProcess());
  39   ::logging::InitLogging(settings);
  40
  41   // we want process and thread IDs because we have a lot of things running
  42   ::logging::SetLogItems(true,  // enable_process_id
  43                          true,  // enable_thread_id
  44                          true,  // enable_timestamp
  45                          false);  // enable_tickcount
  46 }
  47
  48 }  // namespace logging
  49 }  // namespace mojo