GNU CommonC++
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00001 // Copyright (C) 1999-2005 Open Source Telecom Corporation. 00002 // Copyright (C) 2006-2010 David Sugar, Tycho Softworks. 00003 // 00004 // This program is free software; you can redistribute it and/or modify 00005 // it under the terms of the GNU General Public License as published by 00006 // the Free Software Foundation; either version 2 of the License, or 00007 // (at your option) any later version. 00008 // 00009 // This program is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 // GNU General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with this program; if not, write to the Free Software 00016 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 // 00018 // As a special exception, you may use this file as part of a free software 00019 // library without restriction. Specifically, if other files instantiate 00020 // templates or use macros or inline functions from this file, or you compile 00021 // this file and link it with other files to produce an executable, this 00022 // file does not by itself cause the resulting executable to be covered by 00023 // the GNU General Public License. This exception does not however 00024 // invalidate any other reasons why the executable file might be covered by 00025 // the GNU General Public License. 00026 // 00027 // This exception applies only to the code released under the name GNU 00028 // Common C++. If you copy code from other releases into a copy of GNU 00029 // Common C++, as the General Public License permits, the exception does 00030 // not apply to the code that you add in this way. To avoid misleading 00031 // anyone as to the status of such modified files, you must delete 00032 // this exception notice from them. 00033 // 00034 // If you write modifications of your own for GNU Common C++, it is your choice 00035 // whether to permit this exception to apply to your modifications. 00036 // If you do not wish that, delete this exception notice. 00037 // 00038 00044 #ifndef CCXX_PROCESS_H_ 00045 #define CCXX_PROCESS_H_ 00046 00047 #ifndef CCXX_CONFIG_H_ 00048 #include <cc++/config.h> 00049 #endif 00050 00051 #ifndef CCXX_THREAD_H_ 00052 #include <cc++/thread.h> 00053 #endif 00054 00055 #ifdef CCXX_NAMESPACES 00056 namespace ost { 00057 #endif 00058 00069 class __EXPORT Process 00070 { 00071 private: 00072 static bool rtflag; 00073 00074 public: 00075 #ifndef WIN32 00076 typedef RETSIGTYPE (*Trap)(int); 00077 00083 static void detach(void); 00084 00092 static void attach(const char *devname); 00093 00101 static Trap setPosixSignal(int signo, Trap handler); 00102 00110 static Trap setInterruptSignal(int signo, Trap handler); 00111 #endif 00112 00120 bool lock(bool future = true); 00121 00125 void unlock(void); 00126 00144 static int spawn(const char *exec, const char **argv, bool wait = true); 00145 00153 static int join(int pid); 00154 00162 static bool cancel(int pid, int sig = 0); 00163 00170 static const char *getEnv(const char *name); 00171 00179 static void setEnv(const char *name, const char *value, bool overwrite); 00180 00186 static const char *getConfigDir(void); 00187 00193 static const char *getHomeDir(void); 00194 00200 static const char *getUser(void); 00201 00207 static bool setUser(const char *id, bool grp = true); 00208 00214 static bool setGroup(const char *id); 00215 00221 static size_t getPageSize(void); 00222 00226 static void setPriority(int pri); 00227 00231 static void setScheduler(const char *policy); 00232 00236 static void setRealtime(int pri = 0); 00237 00241 static bool isScheduler(void); 00242 00246 static inline bool isRealtime(void) 00247 {return rtflag;}; 00248 }; 00249 00259 class __EXPORT Lockfile 00260 { 00261 private: 00262 #ifdef WIN32 00263 HANDLE _mutex; 00264 bool _flagged; 00265 #else 00266 char *_path; 00267 #endif 00268 00269 public: 00275 Lockfile(const char *name); 00276 00280 Lockfile(); 00281 00285 ~Lockfile() 00286 {unlock();}; 00287 00296 bool lock(const char *name); 00297 00301 void unlock(void); 00302 00308 bool isLocked(void); 00309 }; 00310 00311 #ifdef CCXX_NAMESPACES 00312 } 00313 #endif 00314 00315 #endif 00316