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nsPluginLogging

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* Plugin Module Logging usage instructions and includes */
////////////////////////////////////////////////////////////////////////////////
#ifndef nsPluginLogging_h__
#define nsPluginLogging_h__

#include "mozilla/Logging.h"

#ifndef PLUGIN_LOGGING    // allow external override
#define PLUGIN_LOGGING 1  // master compile-time switch for pluging logging
#endif

////////////////////////////////////////////////////////////////////////////////
// Basic Plugin Logging Usage Instructions
//
// 1. Set this environment variable: MOZ_LOG=<name>:<level>

// Choose the <name> and <level> from this list (no quotes):

// Log Names            <name>
#define NPN_LOG_NAME    "PluginNPN"
#define NPP_LOG_NAME    "PluginNPP"
#define PLUGIN_LOG_NAME "Plugin"

// Levels                <level>
#define PLUGIN_LOG_ALWAYS mozilla::LogLevel::Error
#define PLUGIN_LOG_BASIC  mozilla::LogLevel::Info
#define PLUGIN_LOG_NORMAL mozilla::LogLevel::Debug
#define PLUGIN_LOG_NOISY  mozilla::LogLevel::Verbose

// 2. You can combine logs and levels by separating them with a comma:
//    My favorite Win32 Example: SET MOZ_LOG=Plugin:5,PluginNPP:5,PluginNPN:5

// 3. Instead of output going to the console, you can log to a file. Additionally, set the
//    MOZ_LOG_FILE environment variable to point to the full path of a file.
//    My favorite Win32 Example: SET MOZ_LOG_FILE=c:\temp\pluginLog.txt

// 4. For complete information see the Gecko Developer guide:
// https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Gecko_Logging


#ifdef PLUGIN_LOGGING

class nsPluginLogging
{
public:
  static mozilla::LazyLogModule gNPNLog;  // 4.x NP API, calls into navigator
  static mozilla::LazyLogModule gNPPLog;  // 4.x NP API, calls into plugin
  static mozilla::LazyLogModule gPluginLog;  // general plugin log
};

#endif   // PLUGIN_LOGGING

// Quick-use macros
#ifdef PLUGIN_LOGGING
 #define NPN_PLUGIN_LOG(a, b)                              \
   PR_BEGIN_MACRO                                        \
   MOZ_LOG(nsPluginLogging::gNPNLog, a, b); \
   PR_LogFlush();                                                    \
   PR_END_MACRO
#else
 #define NPN_PLUGIN_LOG(a, b)
#endif

#ifdef PLUGIN_LOGGING
 #define NPP_PLUGIN_LOG(a, b)                              \
   PR_BEGIN_MACRO                                         \
   MOZ_LOG(nsPluginLogging::gNPPLog, a, b); \
   PR_LogFlush();                                                    \
   PR_END_MACRO
#else
 #define NPP_PLUGIN_LOG(a, b)
#endif

#ifdef PLUGIN_LOGGING
 #define PLUGIN_LOG(a, b)                              \
   PR_BEGIN_MACRO                                         \
   MOZ_LOG(nsPluginLogging::gPluginLog, a, b); \
   PR_LogFlush();                                                    \
   PR_END_MACRO
#else
 #define PLUGIN_LOG(a, b)
#endif

#endif   // nsPluginLogging_h__