| introduction | detailed information | Configure & Build | API description | Custom log formatting |
The default file header can be customized in the default file sink in calling
FileSink::overrideLogHeader(std::string);
The default log formatting is defined in LogMessage.hpp
static std::string DefaultLogDetailsToString(const LogMessage& msg);
An “all details” log formatting function is also defined - this one also adds the “calling thread’s ID”
static std::string FullLogDetailsToString(const LogMessage& msg);
For convenience the Default sink has a function for doing exactly this
void overrideLogDetails(LogMessage::LogDetailsFunc func);
Example code for replacing the default log formatting for “full details” formatting (it adds thread ID)
auto worker = g3::LogWorker::createLogWorker();
auto handle= worker->addDefaultLogger(argv[0], path_to_log_file);
g3::initializeLogging(worker.get());
handle->call(&g3::FileSink::overrideLogDetails, &LogMessage::FullLogDetailsToString);
See test_message.cpp for details and testing
Example code for overloading the formatting of a custom sink. The log formatting function will be passed into the
LogMessage::toString(...) this will override the default log formatting
Example
namespace {
std::string MyCustomFormatting(const LogMessage& msg) {
... how you want it ...
}
}
void MyCustomSink::ReceiveLogEntry(LogMessageMover message) {
std::string formatted = message.get().toString(&MyCustomFormatting) << std::flush;
}
...
...
auto worker = g3::LogWorker::createLogWorker();
auto sinkHandle = worker->addSink(std::make_unique<MyCustomSink>(),
&MyCustomSink::ReceiveLogMessage);
// ReceiveLogMessage(...) will used the custom formatting function "MyCustomFormatting(...)
| introduction | detailed information | Configure & Build | API description | Custom log formatting |