author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Mon, 14 Apr 2008 11:30:15 -0700 | |
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permissions | -rw-r--r-- |
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* Copyright (c) 2006,2007 INRIA |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
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*/ |
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#ifndef __LOG_H__ |
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#define __LOG_H__ |
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#include <string> |
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#include <iostream> |
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#ifdef NS3_LOG_ENABLE |
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/** |
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* \ingroup core |
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* \defgroup logging Logging |
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* \brief Logging functions and macros |
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* |
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* LOG functionality: macros which allow developers to |
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* send information out on screen. All logging messages |
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* are disabled by default. To enable selected logging |
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* messages, use the ns3::LogComponentEnable |
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* function or use the NS_LOG environment variable |
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* |
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* Use the environment variable NS_LOG to define a ';'-separated list of |
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* logging components to enable. For example (using bash syntax), |
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* NS_LOG="OlsrAgent" would enable one component; |
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* NS_LOG="OlsrAgent;Ipv4L3Protocol" would enable two |
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* components, etc. NS_LOG="*" will enable all available log components. |
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* For each component, the "debug" log level is enabled by default. |
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* |
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* To obtain more components than just debug log level, more components |
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* can be enabled selectively with the following |
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* syntax: NS_LOG='Component1=func|param|warn;Component2=error|debug' |
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* This example would enable the 'func', 'param', and 'warn' log |
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* levels for 'Component1' and the 'error' and 'debug' log levels |
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* for 'Component2'. The wildcard can be used here as well. For example |
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* NS_LOG='*=level_all|prefix' would enable all log levels and prefix all |
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* prints with the component and function names. |
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* |
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*/ |
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/** |
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* \ingroup logging |
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* \param name a string |
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* |
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* Define a Log component with a specific name. This macro |
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* should be used at the top of every file in which you want |
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* to use the NS_LOG macro. This macro defines a new |
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* "log component" which can be later selectively enabled |
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* or disabled with the ns3::LogComponentEnable and |
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* ns3::LogComponentDisable functions or with the NS_LOG |
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* environment variable. |
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*/ |
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#define NS_LOG_COMPONENT_DEFINE(name) \ |
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static ns3::LogComponent g_log = ns3::LogComponent (name) |
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#define APPEND_TIME_PREFIX \ |
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if (g_log.IsEnabled (ns3::LOG_PREFIX_TIME)) \ |
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{ \ |
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LogTimePrinter printer = LogGetTimePrinter (); \ |
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if (printer != 0) \ |
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{ \ |
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(*printer) (std::clog); \ |
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std::clog << " "; \ |
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} \ |
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} |
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#define APPEND_FUNC_PREFIX \ |
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if (g_log.IsEnabled (ns3::LOG_PREFIX_FUNC)) \ |
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{ \ |
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std::clog << g_log.Name () << ":" << \ |
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__FUNCTION__ << "(): "; \ |
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} \ |
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/** |
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* \ingroup logging |
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* \param level the log level |
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* \param msg the message to log |
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* |
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* This macro allows you to log an arbitrary message at a specific |
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* log level. The log message is expected to be a C++ ostream |
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* message such as "my string" << aNumber << "my oth stream". |
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* |
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* Typical usage looks like: |
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* \code |
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* NS_LOG (LOG_DEBUG, "a number="<<aNumber<<", anotherNumber="<<anotherNumber); |
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* \endcode |
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*/ |
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#define NS_LOG(level, msg) \ |
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do \ |
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{ \ |
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if (g_log.IsEnabled (level)) \ |
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{ \ |
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APPEND_TIME_PREFIX; \ |
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APPEND_FUNC_PREFIX; \ |
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std::clog << msg << std::endl; \ |
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} \ |
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} \ |
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while (false) |
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#define NS_LOG_F(level) \ |
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do \ |
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{ \ |
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if (g_log.IsEnabled (level)) \ |
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{ \ |
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std::clog << g_log.Name () << ":" << __FUNCTION__ << \ |
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"()" << std::endl; \ |
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} \ |
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} \ |
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while (false) |
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#define NS_LOG_ERROR(msg) \ |
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NS_LOG(ns3::LOG_ERROR, msg) |
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#define NS_LOG_WARN(msg) \ |
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NS_LOG(ns3::LOG_WARN, msg) |
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#define NS_LOG_DEBUG(msg) \ |
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NS_LOG(ns3::LOG_DEBUG, msg) |
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#define NS_LOG_INFO(msg) \ |
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NS_LOG(ns3::LOG_INFO, msg) |
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#define NS_LOG_FUNCTION \ |
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NS_LOG_F(ns3::LOG_FUNCTION) |
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#define NS_LOG_PARAMS(parameters) \ |
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do \ |
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{ \ |
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if (g_log.IsEnabled (ns3::LOG_PARAM)) \ |
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{ \ |
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APPEND_TIME_PREFIX; \ |
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std::clog << g_log.Name () << ":" \ |
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<< __FUNCTION__ << "("; \ |
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ParameterLogger (std::clog) << parameters; \ |
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std::clog << ")" << std::endl; \ |
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} \ |
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} \ |
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while (false) |
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|
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#define NS_LOG_LOGIC(msg) \ |
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NS_LOG(ns3::LOG_LOGIC, msg) |
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#define NS_LOG_UNCOND(msg) \ |
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do \ |
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{ \ |
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std::clog << msg << std::endl; \ |
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} \ |
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while (false) |
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namespace ns3 { |
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|
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enum LogLevel { |
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LOG_NONE = 0x00000000, // no logging |
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|
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LOG_ERROR = 0x00000001, // serious error messages only |
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LOG_LEVEL_ERROR = 0x00000001, |
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|
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LOG_WARN = 0x00000002, // warning messages |
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LOG_LEVEL_WARN = 0x00000003, |
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|
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LOG_DEBUG = 0x00000004, // rare ad-hoc debug messages |
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LOG_LEVEL_DEBUG = 0x00000007, |
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|
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LOG_INFO = 0x00000008, // informational messages (e.g., banners) |
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LOG_LEVEL_INFO = 0x0000000f, |
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|
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LOG_FUNCTION = 0x00000010, // function tracing |
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LOG_LEVEL_FUNCTION = 0x0000001f, |
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|
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LOG_PARAM = 0x00000020, // parameters to functions |
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LOG_LEVEL_PARAM = 0x0000003f, |
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|
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LOG_LOGIC = 0x00000040, // control flow tracing within functions |
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LOG_LEVEL_LOGIC = 0x0000007f, |
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|
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LOG_ALL = 0x3fffffff, // print everything |
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LOG_LEVEL_ALL = LOG_ALL, |
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|
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LOG_PREFIX_FUNC = 0x80000000, // prefix all trace prints with function |
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LOG_PREFIX_TIME = 0x40000000 // prefix all trace prints with simulation time |
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}; |
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|
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/** |
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* \param name a log component name |
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* \param level a logging level |
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* \ingroup logging |
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* |
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* Enable the logging output associated with that log component. |
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* The logging output can be later disabled with a call |
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* to ns3::LogComponentDisable. |
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* |
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* Same as running your program with the NS_LOG environment |
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* variable set as NS_LOG='name=level' |
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*/ |
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void LogComponentEnable (char const *name, enum LogLevel level); |
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|
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/** |
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* \param level a logging level |
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* \ingroup logging |
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* |
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* Enable the logging output for all registered log components. |
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* |
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* Same as running your program with the NS_LOG environment |
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* variable set as NS_LOG='*=level' |
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*/ |
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void LogComponentEnableAll (enum LogLevel level); |
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|
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|
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/** |
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* \param name a log component name |
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* \param level a logging level |
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* \ingroup logging |
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* |
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* Disable the logging output associated with that log component. |
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* The logging output can be later re-enabled with a call |
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* to ns3::LogComponentEnable. |
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*/ |
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void LogComponentDisable (char const *name, enum LogLevel level); |
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|
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/** |
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* \param level a logging level |
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* \ingroup logging |
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* |
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* Disable all logging for all components. |
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*/ |
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void LogComponentDisableAll (enum LogLevel level); |
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|
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|
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/** |
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* \ingroup logging |
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* |
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* Print the list of logging messages available. |
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* Same as running your program with the NS_LOG environment |
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* variable set as NS_LOG=print-list |
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*/ |
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void LogComponentPrintList (void); |
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|
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typedef void (*LogTimePrinter) (std::ostream &os); |
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|
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void LogRegisterTimePrinter (LogTimePrinter); |
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LogTimePrinter LogGetTimePrinter(void); |
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|
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class LogComponent { |
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public: |
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LogComponent (char const *name); |
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void EnvVarCheck (char const *name); |
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bool IsEnabled (enum LogLevel level) const; |
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bool IsNoneEnabled (void) const; |
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void Enable (enum LogLevel level); |
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void Disable (enum LogLevel level); |
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bool Decorate (void) const; |
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char const *Name (void) const; |
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private: |
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int32_t m_levels; |
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char const *m_name; |
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bool m_decorate; |
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}; |
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|
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class ParameterLogger : public std::ostream |
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{ |
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int m_itemNumber; |
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std::ostream &m_os; |
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public: |
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ParameterLogger (std::ostream &os); |
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|
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template<typename T> |
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ParameterLogger& operator<< (T param) |
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{ |
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switch (m_itemNumber) |
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{ |
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case 0: // first parameter |
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m_os << param; |
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break; |
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default: // parameter following a previous parameter |
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m_os << ", " << param; |
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break; |
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} |
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m_itemNumber++; |
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return *this; |
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} |
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}; |
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|
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} // namespace ns3 |
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|
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#else /* LOG_ENABLE */ |
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|
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#define NS_LOG_COMPONENT_DEFINE(component) |
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#define NS_LOG(level, msg) |
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#define NS_LOG_ERROR(msg) |
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#define NS_LOG_WARN(msg) |
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#define NS_LOG_DEBUG(msg) |
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#define NS_LOG_INFO(msg) |
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#define NS_LOG_FUNCTION |
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#define NS_LOG_PARAMS(parameters) |
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#define NS_LOG_LOGIC(msg) |
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#define NS_LOG_UNCOND(msg) |
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|
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#define LogComponentPrintList |
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#define LogComponentEnable(name,level) |
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#define LogComponentDisable(name,level) |
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#define LogComponentEnableAll(level) |
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#define LogComponentDisableAll(level) |
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|
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#endif /* LOG_ENABLE */ |
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|
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#endif // __LOG_H__ |