v0.10.0
log.cpp

Example and test how to logThis is an example of how to use the logger.

/**
* @file log.cpp
* @example log.cpp
* @brief Example and test how to log
*
* This is an example of how to use the logger.
*
*/
#include <MoFEM.hpp>
#include <thread>
#include <chrono>
using namespace MoFEM;
// Log time
BOOST_LOG_SCOPED_THREAD_ATTR("Timeline", attrs::timer());
// Log tag
MOFEM_LOG_TAG("WORLD", "Tag this output");
MOFEM_LOG("WORLD", Sev::verbose) << "Hello, world!";
// sleep for half a second
std::this_thread::sleep_for(std::chrono::milliseconds(300));
MOFEM_LOG("WORLD", Sev::verbose) << "Hello, second time world!";
}
// Log scope
MOFEM_LOG("SYNC", Sev::verbose) << "Hello, sync!";
MOFEM_LOG("SYNC", Sev::verbose) << "Hello again, sync!";
}
// Log scope
MOFEM_LOG("SYNC", Sev::verbose) << "Hello, sync!";
MOFEM_LOG("SYNC", Sev::verbose) << "Hello again, sync!";
}
static char help[] = "...\n\n";
int main(int argc, char *argv[]) {
MoFEM::Core::Initialize(&argc, &argv, (char *)0, help);
try {
moab::Core mb_instance;
moab::Interface &moab = mb_instance;
MoFEM::Core core(moab, PETSC_COMM_WORLD);
MoFEM::Interface &m_field = core;
CHKERR PetscPrintf(PETSC_COMM_WORLD,
"\nTesting logging for obsolete way of printing "
"messages\nnext line\nnext line\n\n");
CHKERR PetscPrintf(PETSC_COMM_WORLD,
"Ala have ");
CHKERR PetscPrintf(PETSC_COMM_WORLD, "a ");
CHKERR PetscPrintf(PETSC_COMM_WORLD,
"cat\n");
CHKERR PetscPrintf(PETSC_COMM_WORLD, "WARNING\n");
// Set "WORLD channel"
{
MOFEM_LOG("WORLD", Sev::error) << "Hello, self error!";
MOFEM_LOG("WORLD", Sev::warning) << "Hello, self warning!";
MOFEM_LOG("WORLD", Sev::inform) << "Hello, self inform!";
MOFEM_LOG("WORLD", Sev::verbose) << "Hello, self verbose!";
MOFEM_LOG("WORLD", Sev::noisy) << "Hello, self noisy!";
}
{
MOFEM_LOG_C("WORLD", Sev::inform, "%s %d %d %d", "Hello C, self error!",
1, 2, 3);
}
{
}
// Create channel
auto core_log = logging::core::get();
core_log->add_sink(
LogManager::setLog("ATOM_TEST");
// add sink to channel
core_log->add_sink(LogManager::createSink(
boost::make_shared<std::ofstream>("log0.log"), "ATOM_TEST"));
// add sink to channel other way
logging::add_file_log(keywords::file_name = "log1.log",
keywords::filter =
MoFEM::LogKeywords::channel == "ATOM_TEST");
// add skink to channel third way
auto backend = boost::make_shared<sinks::text_ostream_backend>();
backend->add_stream(boost::make_shared<std::ofstream>("log2.log"));
auto sink = boost::make_shared<LogManager::SinkType>(backend);
sink->set_filter((expr::has_attr(MoFEM::LogKeywords::channel) &&
MoFEM::LogKeywords::channel == "ATOM_TEST"));
core_log->add_sink(sink);
MOFEM_LOG_TAG("ATOM_TEST", "atom test");
MOFEM_LOG("ATOM_TEST", Sev::inform) << "Test atom test channel";
// SETERRQ(PETSC_COMM_WORLD, MOFEM_DATA_INCONSISTENCY, "Trigger error");
}
}