/usr/include/netsvcs/Server_Logging_Handler_T.cpp is in libnetsvcs-dev 6.2.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
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#ifndef ACE_SERVER_LOGGING_HANDLERT_C
#define ACE_SERVER_LOGGING_HANDLERT_C
#include "ace/config-all.h"
#include "ace/Get_Opt.h"
#include "ace/Log_Record.h"
#include "ace/CDR_Stream.h"
#include "Server_Logging_Handler_T.h"
#include "ace/Signal.h"
#if !defined (ACE_LACKS_STATIC_DATA_MEMBER_TEMPLATES)
// Track number of requests.
template <ACE_PEER_STREAM_1, class COUNTER, ACE_SYNCH_DECL, class LMR>
COUNTER ACE_Server_Logging_Handler_T<ACE_PEER_STREAM_2, COUNTER, ACE_SYNCH_USE, LMR>::request_count_ = (COUNTER) 0;
#endif /* ACE_LACKS_STATIC_DATA_MEMBER_TEMPLATES */
template <ACE_PEER_STREAM_1, class COUNTER, ACE_SYNCH_DECL, class LMR>
ACE_Server_Logging_Handler_T<ACE_PEER_STREAM_2, COUNTER, ACE_SYNCH_USE, LMR>::ACE_Server_Logging_Handler_T
(ACE_Thread_Manager *,
LMR const &receiver)
// Initialize the CString to something that is not the empty string
// to avoid problems when calling fast_rep()
#if !defined (__GNUG__)
: receiver_ (receiver, ACE_TString (ACE_TEXT(" "), 1))
#else
: receiver_ (receiver),
host_name_ (ACE_TString (ACE_TEXT (" "), 1))
#endif /* ! __GNUG__ */
{
}
// Callback routine for handling the reception of remote logging
// transmissions.
template <ACE_PEER_STREAM_1, class COUNTER, ACE_SYNCH_DECL, class LMR> int
ACE_Server_Logging_Handler_T<ACE_PEER_STREAM_2, COUNTER, ACE_SYNCH_USE, LMR>::handle_input (ACE_HANDLE)
{
int result = this->handle_logging_record ();
return result >= 0 ? 0 : -1;
}
template <ACE_PEER_STREAM_1, class COUNTER, ACE_SYNCH_DECL, class LMR> const ACE_TCHAR *
ACE_Server_Logging_Handler_T<ACE_PEER_STREAM_2, COUNTER, ACE_SYNCH_USE, LMR>::host_name (void)
{
#if !defined (__GNUG__)
return this->receiver_.m_.fast_rep ();
#else
return this->host_name_.fast_rep ();
#endif /* ! __GNUG__ */
}
template <ACE_PEER_STREAM_1, class COUNTER, ACE_SYNCH_DECL, class LMR> int
ACE_Server_Logging_Handler_T<ACE_PEER_STREAM_2, COUNTER, ACE_SYNCH_USE, LMR>::handle_logging_record ()
{
ACE_Log_Record log_record;
// We need to use the old two-read trick here since TCP sockets
// don't support framing natively. Allocate a message block for the
// payload; initially at least large enough to hold the header, but
// needs some room for alignment.
ACE_Message_Block *payload_p = 0;
ACE_Message_Block *header_p = 0;
ACE_NEW_RETURN (header_p,
ACE_Message_Block (ACE_DEFAULT_CDR_BUFSIZE),
-1);
auto_ptr <ACE_Message_Block> header (header_p);
// Align the Message Block for a CDR stream
ACE_CDR::mb_align (header.get ());
ACE_CDR::Boolean byte_order;
ACE_CDR::ULong length;
ssize_t count = ACE::recv_n (this->peer ().get_handle (),
header->wr_ptr (),
8);
switch (count)
{
// Handle shutdown and error cases.
default:
case -1:
case 0:
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("server logging daemon closing down at host %s\n"),
this->host_name ()));
return -1;
/* NOTREACHED */
case 8:
// Just fall through in this case..
break;
}
header->wr_ptr (8); // Reflect addition of 8 bytes.
// Create a CDR stream to parse the 8-byte header.
ACE_InputCDR header_cdr (header.get ());
// Extract the byte-order and use helper methods to disambiguate
// octet, booleans, and chars.
if (!(header_cdr >> ACE_InputCDR::to_boolean (byte_order)))
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Can't extract byte_order\n")));
return 0;
}
// Set the byte-order on the stream...
header_cdr.reset_byte_order (byte_order);
// Extract the length
if (!(header_cdr >> length))
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Can't extract length\n")));
return 0;
}
ACE_NEW_RETURN (payload_p,
ACE_Message_Block (length),
-1);
auto_ptr <ACE_Message_Block> payload (payload_p);
// Ensure there's sufficient room for log record payload.
ACE_CDR::grow (payload.get (), 8 + ACE_CDR::MAX_ALIGNMENT + length);
// Use <recv_n> to obtain the contents.
if (ACE::recv_n (this->peer ().get_handle (),
payload->wr_ptr (),
length) <= 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("recv_n()")));
return -1;
}
payload->wr_ptr (length); // Reflect additional bytes
ACE_InputCDR payload_cdr (payload.get ());
payload_cdr.reset_byte_order (byte_order);
if (!(payload_cdr >> log_record)) // Finally extract the <ACE_log_record>.
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Can't extract log_record\n")));
return 0;
}
log_record.length (length);
// Send the log record to the log message receiver for processing.
if (ACE_BIT_ENABLED (ACE_Log_Msg::instance ()->flags (), ACE_Log_Msg::STDERR))
receiver ().log_record (this->host_name (), log_record);
ostream *orig_ostream = ACE_Log_Msg::instance ()->msg_ostream ();
receiver ().log_output (this->host_name (),
log_record,
orig_ostream);
return 0;
#if 0
ACE_INT32 length;
// We need to use the ol' two-read trick here since TCP sockets
// don't support framing natively. Note that the first call is just
// a "peek" -- we don't actually remove the data until the second
// call. Note that this code is portable as long as ACE_UNIT32 is
// always 32 bits on both the sender and receiver side.
switch (this->peer ().recv ((void *) &length,
sizeof length,
MSG_PEEK))
{
default:
case -1:
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p at host %s\n"),
ACE_TEXT ("server logger"),
this->host_name ()),
-1);
/* NOTREACHED */
case 0:
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("closing log daemon at host %C\n"),
this->host_name ()),
-1);
/* NOTREACHED */
case sizeof length:
{
ACE_Log_Record lp;
// Use ACE_NTOHL to get around bug in egcs 2.91.6x.
length = ACE_NTOHL (length);
#if !defined (ACE_LACKS_STATIC_DATA_MEMBER_TEMPLATES)
++this->request_count_;
u_long count = this->request_count_;
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("request count = %d, length = %d\n"),
count,
length));
#endif /* ACE_LACKS_STATIC_DATA_MEMBER_TEMPLATES */
// Perform the actual <recv> this time.
ssize_t n = this->peer ().recv_n ((void *) &lp,
length);
if (n != length)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%d != %d, %p at host %C\n"),
n,
length,
ACE_TEXT ("server logger"),
this->host_name ()),
-1);
lp.decode ();
if (lp.length () == n)
{
// Send the log record to the log message receiver for
// processing.
if (ACE_BIT_ENABLED (ACE_Log_Msg::instance ()->flags (),
ACE_Log_Msg::STDERR))
receiver ().log_record (this->host_name (),
lp);
ostream *orig_ostream = ACE_Log_Msg::instance ()->msg_ostream ();
receiver ().log_output (this->host_name (),
lp,
orig_ostream);
}
else
ACERROR ((LM_ERROR,
ACE_TEXT ("error, lp.length = %d, n = %d\n"),
lp.length (),
n));
return n;
}
}
#endif
ACE_NOTREACHED (return -1;)
}
// Hook called by Server_Logging_Acceptor when connection is
// established.
template <ACE_PEER_STREAM_1, class COUNTER, ACE_SYNCH_DECL, class LMR> int
ACE_Server_Logging_Handler_T<ACE_PEER_STREAM_2, COUNTER, ACE_SYNCH_USE, LMR>::open_common (void)
{
// Shut off non-blocking IO if it was enabled...
if (this->peer ().disable (ACE_NONBLOCK) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("disable")),
-1);
ACE_PEER_STREAM_ADDR client_addr;
// Determine the address of the client and display it.
if (this->peer ().get_remote_addr (client_addr) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("get_remote_addr")),
-1);
#if !defined (__GNUG__)
this->receiver_.m_ =
ACE_TString (ACE_TEXT_CHAR_TO_TCHAR (client_addr.get_host_name ()));
#else
this->host_name_ =
ACE_TString (ACE_TEXT_CHAR_TO_TCHAR (client_addr.get_host_name ()));
#endif /* ! __GNUG__ */
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%t) accepted connection from host %C on fd %d\n"),
client_addr.get_host_name (),
this->peer ().get_handle ()));
return 0;
}
template<class SLH, class LMR, class SST>
ACE_Server_Logging_Acceptor_T<SLH, LMR, SST>::ACE_Server_Logging_Acceptor_T (void)
{
}
template<class SLH, class LMR, class SST> LMR &
ACE_Server_Logging_Acceptor_T<SLH, LMR, SST>::receiver (void)
{
return receiver_;
}
template<class SLH, class LMR, class SST> SST &
ACE_Server_Logging_Acceptor_T<SLH, LMR, SST>::scheduling_strategy (void)
{
#if !defined (__GNUG__)
return receiver_.m_;
#else
return schedule_strategy_;
#endif /* ! __GNUG__ */
}
template<class SLH, class LMR, class SST> int
ACE_Server_Logging_Acceptor_T<SLH, LMR, SST>::init (int argc, ACE_TCHAR *argv[])
{
ACE_TRACE ("ACE_Server_Logging_Acceptor_T<SLH, LMR, SST>::init");
// Use the options hook to parse the command line arguments and set
// options.
this->parse_args (argc, argv);
// Set the acceptor endpoint into listen mode (use the Singleton
// global Reactor...).
if (this->open (this->service_addr_,
ACE_Reactor::instance (),
0, 0, 0,
&this->scheduling_strategy(),
ACE_TEXT ("Logging Server"),
ACE_TEXT ("ACE logging service")) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%n: %p on port %d\n"),
ACE_TEXT ("acceptor::open failed"),
this->service_addr_.get_port_number ()),
-1);
// Ignore SIGPIPE so that each <SVC_HANDLER> can handle this on its
// own.
ACE_Sig_Action sig ((ACE_SignalHandler) SIG_IGN, SIGPIPE);
ACE_UNUSED_ARG (sig);
ACE_INET_Addr server_addr;
// Figure out what port we're really bound to.
if (this->acceptor ().get_local_addr (server_addr) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("get_local_addr")),
-1);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("starting up Logging Server at port %d on handle %d\n"),
server_addr.get_port_number (),
this->acceptor ().get_handle ()));
return 0;
}
template<class SLH, class LMR, class SST> int
ACE_Server_Logging_Acceptor_T<SLH, LMR, SST>::parse_args (int argc, ACE_TCHAR *argv[])
{
ACE_TRACE ("ACE_Server_Logging_Acceptor_T<SLH, LMR, SST>::parse_args");
int service_port = ACE_DEFAULT_SERVER_PORT;
ACE_LOG_MSG->open (ACE_TEXT ("Logging Service"), ACE_LOG_MSG->flags ());
ACE_Get_Opt get_opt (argc, argv, ACE_TEXT ("p:"), 0);
for (int c; (c = get_opt ()) != -1; )
{
switch (c)
{
case 'p':
service_port = ACE_OS::atoi (get_opt.opt_arg ());
break;
default:
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%n:\n[-p server-port]\n")),
-1);
}
}
this->service_addr_.set (service_port);
return 0;
}
template<class SERVER_LOGGING_HANDLER, class LOG_MESSAGE_RECEIVER, class SCHEDULE_STRATEGY> int
ACE_Server_Logging_Acceptor_T<SERVER_LOGGING_HANDLER,
LOG_MESSAGE_RECEIVER,
SCHEDULE_STRATEGY>
::make_svc_handler (SERVER_LOGGING_HANDLER *&handler)
{
ACE_NEW_RETURN (handler,
SERVER_LOGGING_HANDLER (ACE_Thread_Manager::instance (),
this->receiver()),
-1);
return 0;
}
template<class LOG_MESSAGE_RECEIVER>
ACE_Server_Logging_Handler<LOG_MESSAGE_RECEIVER>::ACE_Server_Logging_Handler (ACE_Thread_Manager * tm,
LOG_MESSAGE_RECEIVER const& receiver)
: ACE_Server_Logging_Handler_T<LOGGING_PEER_STREAM, u_long, ACE_NULL_SYNCH, LOG_MESSAGE_RECEIVER>(tm,
receiver)
{
}
template<class LOG_MESSAGE_RECEIVER>
ACE_Server_Logging_Handler<LOG_MESSAGE_RECEIVER>::ACE_Server_Logging_Handler(ACE_Thread_Manager * tm)
: ACE_Server_Logging_Handler_T<LOGGING_PEER_STREAM, u_long, ACE_NULL_SYNCH, LOG_MESSAGE_RECEIVER>(tm, LOG_MESSAGE_RECEIVER())
{
}
template<class LOG_MESSAGE_RECEIVER> int
ACE_Server_Logging_Handler<LOG_MESSAGE_RECEIVER>::open (void *)
{
// call base class open_common
if (this->open_common () != 0)
return -1;
// Register ourselves with the Reactor to enable subsequent
// dispatching.
if (ACE_Reactor::instance ()->register_handler
(this, ACE_Event_Handler::READ_MASK) == -1)
return -1;
return 0;
}
template<class LOG_MESSAGE_RECEIVER>
ACE_Thr_Server_Logging_Handler<LOG_MESSAGE_RECEIVER>::ACE_Thr_Server_Logging_Handler (ACE_Thread_Manager *tm, LOG_MESSAGE_RECEIVER const &receiver)
: ACE_Server_Logging_Handler_T<LOGGING_PEER_STREAM, ACE_LOGGER_COUNTER, ACE_LOGGER_SYNCH, LOG_MESSAGE_RECEIVER>(tm, receiver)
{
}
template<class LOG_MESSAGE_RECEIVER>
ACE_Thr_Server_Logging_Handler<LOG_MESSAGE_RECEIVER>::ACE_Thr_Server_Logging_Handler (ACE_Thread_Manager *tm)
: ACE_Server_Logging_Handler_T<LOGGING_PEER_STREAM, ACE_LOGGER_COUNTER, ACE_LOGGER_SYNCH, LOG_MESSAGE_RECEIVER>(tm, LOG_MESSAGE_RECEIVER ())
{
}
template<class LOG_MESSAGE_RECEIVER> int
ACE_Thr_Server_Logging_Handler<LOG_MESSAGE_RECEIVER>::open (void *)
{
// call base class open_common
if (this->open_common () != 0)
return -1;
// Spawn a new thread of control to handle logging records with the
// client using a thread-per-connection concurrency model. Note
// that this implicitly uses the <ACE_Thread_Manager::instance> to
// control all the threads.
if (this->activate (THR_BOUND | THR_DETACHED) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("spawn")),
-1);
return 0;
}
// Process remote logging records.
template<class LOG_MESSAGE_RECEIVER> int
ACE_Thr_Server_Logging_Handler<LOG_MESSAGE_RECEIVER>::svc (void)
{
int result = 0;
// Loop until the client terminates the connection or an error occurs.
while ((result = this->handle_input ()) == 0)
continue;
return result;
}
#endif /* ACE_SERVER_LOGGING_HANDLER_TT_C */
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