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added TcpServeR::errlogfmt() to report internal operation failures

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hyung-hwan 2019-06-14 05:53:24 +00:00
parent 3f8838afd3
commit d3a0140ab6
2 changed files with 22 additions and 11 deletions
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1
qse/include/qse/si/TcpServer.hpp
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@ -252,6 +252,7 @@ protected:
friend class TcpServer::Worker;
virtual int handle_worker (Worker* worker) = 0;
virtual void errlogfmt (const qse_char_t* fmt, ...) { /* do nothing. subclasses may override this */ }
private:
void delete_all_workers (Worker::State state) QSE_CPP_NOEXCEPT;

32
qse/lib/si/TcpServer.cpp
View File

@ -176,7 +176,7 @@ void TcpServer::dispatch_mux_event (qse_mux_t* mux, const qse_mux_evt_t* evt) QS
if (server->max_connections > 0 && server->max_connections <= server->worker_list[Worker::LIVE].getSize())
{
// too many connections. accept the connection and close it.
// TODO: logging.
server->errlogfmt (QSE_T("too many connections - %zu\n"), server->worker_list[Worker::LIVE].getSize());
goto accept_and_drop;
}
@ -189,18 +189,19 @@ void TcpServer::dispatch_mux_event (qse_mux_t* mux, const qse_mux_evt_t* evt) QS
catch (...)
{
// memory alloc failed. accept the connection and close it.
// TODO: logging.
server->errlogfmt (QSE_T("unable to instantiate worker\n"));
goto accept_and_drop;
}
if (server->wid_map.free_first == wid_map_t::WID_INVALID && server->prepare_to_acquire_wid() <= -1)
{
server->errlogfmt (QSE_T("unable to assign id to worker\n"));
QSE_CPP_DELETE_WITH_MMGR (worker, Worker, server->getMmgr());
// TODO: logging
goto accept_and_drop;
}
if (lsck->accept(&worker->socket, &worker->address, Socket::T_CLOEXEC) <= -1)
{
server->errlogfmt (QSE_T("unable to accept connection - %hs\n"), strerror(errno));
QSE_CPP_DELETE_WITH_MMGR (worker, Worker, server->getMmgr());
if (server->isStopRequested()) return; /* normal termination requested */
@ -225,7 +226,8 @@ void TcpServer::dispatch_mux_event (qse_mux_t* mux, const qse_mux_evt_t* evt) QS
if (worker->start(0) <= -1)
#endif
{
// TODO: logging.
qse_char_t addrbuf[128];
server->errlogfmt (QSE_T("unable to start worker for connection from %s\n"), worker->address.toStrBuf(addrbuf, QSE_COUNTOF(addrbuf)));
server->worker_list_spl.lock ();
server->worker_list[Worker::LIVE].remove (worker);
@ -241,8 +243,12 @@ void TcpServer::dispatch_mux_event (qse_mux_t* mux, const qse_mux_evt_t* evt) QS
accept_and_drop:
Socket s;
SocketAddress sa;
if (lsck->accept(&s, &sa, Socket::T_CLOEXEC) >= 0) s.close();
// TODO: logging.
if (lsck->accept(&s, &sa, Socket::T_CLOEXEC) >= 0)
{
qse_char_t addrbuf[128];
server->errlogfmt (QSE_T("accepted but dropped connection from %s\n"), sa.toStrBuf(addrbuf, QSE_COUNTOF(addrbuf)));
s.close();
}
}
}
@ -313,7 +319,7 @@ int TcpServer::setup_listeners (const qse_char_t* addrs) QSE_CPP_NOEXCEPT
if (sockaddr.set(addr_ptr, addr_len) <= -1)
{
/* TODO: set error */
this->errlogfmt (QSE_T("unrecognized listener address - %.*js\n"), (int)addr_len, addr_ptr);
goto skip_segment;
}
@ -323,13 +329,15 @@ int TcpServer::setup_listeners (const qse_char_t* addrs) QSE_CPP_NOEXCEPT
}
catch (...)
{
/* TODO: set error */
this->errlogfmt (QSE_T("unable to instantiate listener\n"));
goto skip_segment;
}
if (lsck->open(sockaddr.getFamily(), QSE_SOCK_STREAM, 0, Socket::T_CLOEXEC | Socket::T_NONBLOCK) <= -1)
{
this->setErrorFmt (syserr_to_errnum(errno), QSE_T("%hs"), strerror(errno));
int xerrno = errno;
this->errlogfmt (QSE_T("unable to open listener socket on %.*js on %hs\n"), (int)addr_len, addr_ptr, strerror(xerrno));
this->setErrorFmt (syserr_to_errnum(xerrno), QSE_T("%hs"), strerror(xerrno));
goto skip_segment;
}
@ -338,7 +346,9 @@ int TcpServer::setup_listeners (const qse_char_t* addrs) QSE_CPP_NOEXCEPT
if (lsck->bind(sockaddr) <= -1 || lsck->listen() <= -1)
{
this->setErrorFmt (syserr_to_errnum(errno), QSE_T("%hs"), strerror(errno));
int xerrno = errno;
this->errlogfmt (QSE_T("unable to bind/listen on %.*js - %hs\n"), (int)addr_len, addr_ptr, strerror(xerrno));
this->setErrorFmt (syserr_to_errnum(xerrno), QSE_T("%hs"), strerror(xerrno));
goto skip_segment;
}
@ -348,7 +358,7 @@ int TcpServer::setup_listeners (const qse_char_t* addrs) QSE_CPP_NOEXCEPT
ev.data = lsck;
if (qse_mux_insert(mux, &ev) <= -1)
{
/* TODO: set error */
this->errlogfmt (QSE_T("unable to register listener on %.*js to multiplexer\n"), (int)addr_len, addr_ptr);
goto skip_segment;
}