RusYus opened a new issue, #612:
URL: https://github.com/apache/logging-log4cxx/issues/612
If `DOMConfigurator::configureAndWatch()` called more than ones no
XMLWatchdog thread is created.
This happens because when old xdog is deleted it removes task in its dtor,
so old thread in `ThreadUtility::priv_data::doPeriodicTasks()` finishes since
jobs list is empty. On the next configuration new thread isn't created in
`ThreadUtility::addPeriodicTask` because the old thread is joinable, so code
goes to `m_priv->interrupt.notify_one();` which does nothing.
Minimal code example to see if the watcher is running:
```
#include <iostream>
#include <log4cxx/logger.h>
#include <log4cxx/xml/domconfigurator.h>
#include <log4cxx/logmanager.h>
static auto logger = log4cxx::Logger::getLogger("MyApp");
int main()
{
log4cxx::xml::DOMConfigurator::configureAndWatch((std::string)"c:\\tmp\\log4cxx.xml");
int c = std::getchar();
while (c != 'q')
{
if (c == 'c')
{
std::cout << "configure\n";
log4cxx::xml::DOMConfigurator::configureAndWatch((std::string)"c:\\tmp\\log4cxx.xml");
}
c = std::getchar();
}
log4cxx::LogManager::shutdown();
return 0;
}
```
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