threaddata.cpp
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#include "threaddata.h"
#include <string>
#include <sstream>
ThreadData::ThreadData(int threadnr, std::shared_ptr<SubscriptionStore> &subscriptionStore, ConfigFileParser &confFileParser) :
subscriptionStore(subscriptionStore),
confFileParser(confFileParser),
authPlugin(confFileParser),
threadnr(threadnr)
{
logger = Logger::getInstance();
epollfd = check<std::runtime_error>(epoll_create(999));
}
void ThreadData::start(thread_f f)
{
this->thread = std::thread(f, this);
pthread_t native = this->thread.native_handle();
std::ostringstream threadName;
threadName << "FlashMQ T " << threadnr;
threadName.flush();
pthread_setname_np(native, threadName.str().c_str());
}
void ThreadData::quit()
{
running = false;
thread.join();
}
void ThreadData::giveClient(Client_p client)
{
clients_by_fd_mutex.lock();
int fd = client->getFd();
clients_by_fd[fd] = client;
clients_by_fd_mutex.unlock();
struct epoll_event ev;
memset(&ev, 0, sizeof (struct epoll_event));
ev.data.fd = fd;
ev.events = EPOLLIN;
check<std::runtime_error>(epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev));
}
Client_p ThreadData::getClient(int fd)
{
std::lock_guard<std::mutex> lck(clients_by_fd_mutex);
return this->clients_by_fd[fd];
}
void ThreadData::removeClient(Client_p client)
{
client->markAsDisconnecting();
std::lock_guard<std::mutex> lck(clients_by_fd_mutex);
clients_by_fd.erase(client->getFd());
}
void ThreadData::removeClient(int fd)
{
std::lock_guard<std::mutex> lck(clients_by_fd_mutex);
auto client_it = this->clients_by_fd.find(fd);
if (client_it != this->clients_by_fd.end())
{
client_it->second->markAsDisconnecting();
this->clients_by_fd.erase(fd);
}
}
std::shared_ptr<SubscriptionStore> &ThreadData::getSubscriptionStore()
{
return subscriptionStore;
}
// TODO: profile how fast hash iteration is. Perhaps having a second list/vector is beneficial?
bool ThreadData::doKeepAliveCheck()
{
std::unique_lock<std::mutex> lock(clients_by_fd_mutex, std::try_to_lock);
if (!lock.owns_lock())
return false;
auto it = clients_by_fd.begin();
while (it != clients_by_fd.end())
{
Client_p &client = it->second;
if (client && client->keepAliveExpired())
{
client->setDisconnectReason("Keep-alive expired: " + client->getKeepAliveInfoString());
it = clients_by_fd.erase(it);
}
else
it++;
}
return true;
}
void ThreadData::initAuthPlugin()
{
authPlugin.loadPlugin(confFileParser.authPluginPath);
authPlugin.init();
authPlugin.securityInit(false);
}
void ThreadData::reload()
{
try
{
authPlugin.securityCleanup(true);
authPlugin.securityInit(true);
}
catch (AuthPluginException &ex)
{
logger->logf(LOG_ERR, "Error reloading auth plugin: %s. Security checks will now fail, because we don't know the status of the plugin anymore.", ex.what());
}
}