libqi-api  2.1.4.13
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log_example.cpp

This explain explain how call log functions.

\example shared_libray_example.cpp

Todo:
write a sharedlib example
/*
* Copyright (c) 2012 Aldebaran Robotics. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the COPYING file.
*/
#include <qi/log.hpp>
#include <boost/program_options.hpp>
namespace po = boost::program_options;
int main(int argc, char **argv)
{
po::options_description desc("Allowed options");
int globalVerbosity;
// Used to parse options, as well as to put help message
desc.add_options()
("help,h", "Produces help message")
("version", "Output NAOqi version.")
("verbose,v", "Set verbose verbosity.")
("debug,d", "Set debug verbosity.")
("quiet,q", "Do not show logs on console.")
("context,c", po::value<int>(), "Show context logs: [0-7] (0: none, 1: categories, 2: date, 3: file+line, 4: date+categories, 5: date+line+file, 6: categories+line+file, 7: all (date+categories+line+file+function)).")
("synchronous-log", "Activate synchronous logs.")
("log-level,L", po::value<int>(&globalVerbosity), "Change the log minimum level: [0-6] (0: silent, 1: fatal, 2: error, 3: warning, 4: info, 5: verbose, 6: debug). Default: 4 (info)")
;
// Map containing all the options with their values
po::variables_map vm;
// program option library throws all kind of errors, we just catch them
// all, print usage and exit
try
{
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
}
catch (po::error &e)
{
std::cerr << e.what() << std::endl;
std::cout << desc << std::endl;
exit(1);
}
if (vm.count("help")) {
std::cout << desc << std::endl;
return 0;
}
// set default log verbosity
// set default log context
if (vm.count("log-level"))
{
if (globalVerbosity > 0 && globalVerbosity <= 6)
if (globalVerbosity > 6)
if (globalVerbosity <= 0)
}
// Remove consoleloghandler (default log handler)
if (vm.count("quiet"))
qi::log::removeLogHandler("consoleloghandler");
if (vm.count("debug"))
if (vm.count("verbose"))
if (vm.count("context"))
{
int globalContext = vm["context"].as<int>();
if (globalContext < 0)
{
}
else if (globalContext > 7)
{
}
else
{
qi::log::setContext(globalContext);
}
}
if (vm.count("synchronous-log"))
qiLogFatal("core.log.example.1", "%d\n", 41);
qiLogError("core.log.example.1", "%d\n", 42);
qiLogWarning("core.log.example.1", "%d\n", 43);
qiLogInfo("core.log.example.1", "%d\n", 44);
qiLogVerbose("core.log.example.1", "%d\n", 45);
qiLogDebug("core.log.example.1", "%d\n", 46);
qiLogFatal("core.log.example.2") << "f" << 4 << std::endl;
qiLogError("core.log.example.2") << "e" << 4 << std::endl;
qiLogWarning("core.log.example.2") << "w" << 4 << std::endl;
qiLogInfo("core.log.example.2") << "i" << 4 << std::endl;
qiLogVerbose("core.log.example.2") << "v" << 4 << std::endl;
qiLogDebug("core.log.example.2") << "d" << 4 << std::endl;
qiLogFatal("core.log.example.1", "without '\\n': %d", 41);
qiLogError("core.log.example.1", "without '\\n': %d", 42);
qiLogWarning("core.log.example.1", "without '\\n': %d", 43);
qiLogInfo("core.log.example.1", "without '\\n': %d", 44);
qiLogVerbose("core.log.example.1", "without '\\n': %d", 45);
qiLogDebug("core.log.example.1", "without '\\n': %d", 46);
qiLogFatal("core.log.example.1", "");
qiLogFatal("core.log.example.1", "\n");
qiLogFatal("core.log.example.2") << "f " << "without '\\n'";
qiLogError("core.log.example.2") << "e " << "without '\\n'";
qiLogWarning("core.log.example.2") << "w " << "without '\\n'";
qiLogInfo("core.log.example.2") << "i " << "without '\\n'";
qiLogVerbose("core.log.example.2") << "v " << "without '\\n'";
qiLogDebug("core.log.example.2") << "d " << "without '\\n'";
qiLogFatal("core.log.example.2") << "";
qiLogFatal("core.log.example.2") << std::endl;
qiLogFatal("core.log.example.3", "%d", 21) << "f" << 4 << std::endl;
qiLogError("core.log.example.3", "%d", 21) << "e" << 4 << std::endl;
qiLogWarning("core.log.example.3", "%d", 21) << "w" << 4 << std::endl;
qiLogInfo("core.log.example.3", "%d", 21) << "i" << 4 << std::endl;
qiLogVerbose("core.log.example.3", "%d", 21) << "v" << 4 << std::endl;
qiLogDebug("core.log.example.3", "%d", 21) << "d" << 4 << std::endl;
//c style
qiLogWarning("core.log.example.4",
"Oups my buffer is too bad: %x\n",
0x0BADCAFE);
//c++ style
qiLogError("core.log.example.4") << "Where is nao?"
<< " - Nao is in the kitchen."
<< " - How many are they? "
<< 42 << std::endl;
//mixup style
qiLogInfo("core.log.example.4", "%d %d ", 41, 42) << 43 << " " << 44
<< std::endl;
std::cout << "I've just finished to log!" << std::endl;
}