GNU CommonC++
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00001 // Copyright (C) 1999-2005 Open Source Telecom Corporation. 00002 // 00003 // This program is free software; you can redistribute it and/or modify 00004 // it under the terms of the GNU General Public License as published by 00005 // the Free Software Foundation; either version 2 of the License, or 00006 // (at your option) any later version. 00007 // 00008 // This program is distributed in the hope that it will be useful, 00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00011 // GNU General Public License for more details. 00012 // 00013 // You should have received a copy of the GNU General Public License 00014 // along with this program; if not, write to the Free Software 00015 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00016 // 00017 // As a special exception, you may use this file as part of a free software 00018 // library without restriction. Specifically, if other files instantiate 00019 // templates or use macros or inline functions from this file, or you compile 00020 // this file and link it with other files to produce an executable, this 00021 // file does not by itself cause the resulting executable to be covered by 00022 // the GNU General Public License. This exception does not however 00023 // invalidate any other reasons why the executable file might be covered by 00024 // the GNU General Public License. 00025 // 00026 // This exception applies only to the code released under the name GNU 00027 // Common C++. If you copy code from other releases into a copy of GNU 00028 // Common C++, as the General Public License permits, the exception does 00029 // not apply to the code that you add in this way. To avoid misleading 00030 // anyone as to the status of such modified files, you must delete 00031 // this exception notice from them. 00032 // 00033 // If you write modifications of your own for GNU Common C++, it is your choice 00034 // whether to permit this exception to apply to your modifications. 00035 // If you do not wish that, delete this exception notice. 00036 // 00037 00043 #ifndef CCXX_PROCESS_H_ 00044 #define CCXX_PROCESS_H_ 00045 00046 #ifndef CCXX_CONFIG_H_ 00047 #include <cc++/config.h> 00048 #endif 00049 00050 #ifndef CCXX_THREAD_H_ 00051 #include <cc++/thread.h> 00052 #endif 00053 00054 #ifdef CCXX_NAMESPACES 00055 namespace ost { 00056 #endif 00057 00068 class __EXPORT Process 00069 { 00070 private: 00071 static bool rtflag; 00072 00073 public: 00074 #ifndef WIN32 00075 typedef RETSIGTYPE (*Trap)(int); 00076 00082 static void detach(void); 00083 00091 static void attach(const char *devname); 00092 00100 static Trap setPosixSignal(int signo, Trap handler); 00101 00109 static Trap setInterruptSignal(int signo, Trap handler); 00110 #endif 00111 00119 bool lock(bool future = true); 00120 00124 void unlock(void); 00125 00143 static int spawn(const char *exec, const char **argv, bool wait = true); 00144 00152 static int join(int pid); 00153 00161 static bool cancel(int pid, int sig = 0); 00162 00169 static const char *getEnv(const char *name); 00170 00178 static void setEnv(const char *name, const char *value, bool overwrite); 00179 00185 static const char *getConfigDir(void); 00186 00192 static const char *getHomeDir(void); 00193 00199 static const char *getUser(void); 00200 00206 static bool setUser(const char *id, bool grp = true); 00207 00213 static bool setGroup(const char *id); 00214 00220 static size_t getPageSize(void); 00221 00225 static void setPriority(int pri); 00226 00230 static void setScheduler(const char *policy); 00231 00235 static void setRealtime(int pri = 0); 00236 00240 static bool isScheduler(void); 00241 00245 static inline bool isRealtime(void) 00246 {return rtflag;}; 00247 }; 00248 00258 class __EXPORT Lockfile 00259 { 00260 private: 00261 #ifdef WIN32 00262 HANDLE _mutex; 00263 bool _flagged; 00264 #else 00265 char *_path; 00266 #endif 00267 00268 public: 00274 Lockfile(const char *name); 00275 00279 Lockfile(); 00280 00284 ~Lockfile() 00285 {unlock();}; 00286 00295 bool lock(const char *name); 00296 00300 void unlock(void); 00301 00307 bool isLocked(void); 00308 }; 00309 00310 #ifdef CCXX_NAMESPACES 00311 } 00312 #endif 00313 00314 #endif 00315