1 // include/Daemon.hh 2 // This file is part of libpbe; see http://decimail.org 3 // (C) 2004-2007 Philip Endecott 4 5 // This program is free software; you can redistribute it and/or modify 6 // it under the terms of the GNU General Public License as published by 7 // the Free Software Foundation; either version 2 of the License, or 8 // any later version. 9 // 10 // This program is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU General Public License for more details. 14 // 15 // You should have received a copy of the GNU General Public License 16 // along with this program; if not, write to the Free Software 17 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 19 #ifndef libpbe_Daemon_hh 20 #define libpbe_Daemon_hh 21 22 #include <syslog.h> 23 #include <string> 24 25 #include "FileDescriptor.hh" 26 #include "Mutex.hh" 27 #include "Condition.hh" 28 29 // TODO: 30 // Sending EOF doesn't do anything (sigpipe?) 31 // Worry about other signals 32 // Spurious thread on first connection (is it syslog???) 33 34 35 class Daemon { 36 public: 37 static const int default_max_sessions = 25; 38 39 Daemon(short p, 40 std::string pn, 41 int sf = LOG_LOCAL0, 42 std::string u="", 43 std::string d="", 44 int max_sessions_=0, 45 bool accept_local_only_=false); 46 virtual ~Daemon(); 47 48 void run_interactively(void); 49 void run_as_daemon(bool background = true); 50 void run_default(void); 51 startup(void)52 virtual void startup(void) {}; 53 virtual void session(pbe::FileDescriptor& in_fd, pbe::FileDescriptor& out_fd) = 0; 54 55 private: 56 const short port; 57 const std::string progname; 58 const int syslog_facility; 59 const std::string username; 60 const std::string dir; 61 const int max_sessions; 62 const bool accept_local_only; 63 64 typedef pbe::Mutex<> n_sessions_mutex_t; 65 n_sessions_mutex_t n_sessions_mutex; 66 typedef pbe::Condition n_sessions_condition_t; 67 n_sessions_condition_t n_sessions_condition; 68 int n_sessions; 69 70 public: // really private 71 void decrement_session_count(void); 72 }; 73 74 75 #endif 76