Because c-ares may close one of its socket, even if it’s not the one that has the event. Otherwise we may not know when a socket has been removed from our poller (automatically, when close()ed) and this leads to bugs.
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
#include <louloulibs.h>
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#ifdef CARES_FOUND
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#include <network/dns_socket_handler.hpp>
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#include <network/dns_handler.hpp>
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#include <network/poller.hpp>
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#include <ares.h>
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DNSSocketHandler::DNSSocketHandler(std::shared_ptr<Poller> poller,
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DNSHandler& handler,
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const socket_t socket):
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SocketHandler(poller, socket),
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handler(handler)
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{
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}
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void DNSSocketHandler::connect()
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{
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}
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void DNSSocketHandler::on_recv()
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{
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// always stop watching send and read events. We will re-watch them if the
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// next call to ares_fds tell us to
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this->handler.remove_all_sockets_from_poller();
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::ares_process_fd(DNSHandler::instance.get_channel(), this->socket, ARES_SOCKET_BAD);
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}
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void DNSSocketHandler::on_send()
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{
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// always stop watching send and read events. We will re-watch them if the
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// next call to ares_fds tell us to
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this->handler.remove_all_sockets_from_poller();
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::ares_process_fd(DNSHandler::instance.get_channel(), ARES_SOCKET_BAD, this->socket);
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}
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bool DNSSocketHandler::is_connected() const
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{
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return true;
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}
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void DNSSocketHandler::remove_from_poller()
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{
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this->poller->remove_socket_handler(this->socket);
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}
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#endif /* CARES_FOUND */
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