wibble
0.1.28
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00001 #ifndef WIBBLE_SYS_CHILDPROCESS_H 00002 #define WIBBLE_SYS_CHILDPROCESS_H 00003 00004 /* 00005 * OO base class for process functions and child processes 00006 * 00007 * Copyright (C) 2003--2006 Enrico Zini <enrico@debian.org> 00008 * 00009 * This library is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU Lesser General Public 00011 * License as published by the Free Software Foundation; either 00012 * version 2.1 of the License, or (at your option) any later version. 00013 * 00014 * This library is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 * Lesser General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU Lesser General Public 00020 * License along with this library; if not, write to the Free Software 00021 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 */ 00023 00024 #include <sys/types.h> 00025 #include <wibble/exception.h> 00026 #include <wibble/sys/macros.h> 00027 00028 struct rusage; 00029 00030 namespace wibble { 00031 namespace sys { 00032 00036 class ChildProcess 00037 { 00038 protected: 00039 pid_t _pid; 00040 int m_status; 00041 void waitError(); 00042 00046 // TODO: since the destructor is called twice (one in the parent and one in 00047 // the child), it could be useful to add a bool isChild() method to let the 00048 // destructor and other functions know where they are operating. The value 00049 // returned can be set by ChildProcess::fork. 00050 virtual int main() = 0; 00051 00052 public: 00053 ChildProcess() : _pid(-1) {} 00054 virtual ~ChildProcess() {} 00055 00057 pid_t fork(); 00058 00062 pid_t forkAndRedirect(int* stdinfd = 0, int* stdoutfd = 0, int* stderrfd = 0); 00063 00071 pid_t pid() const { return _pid; } 00072 00076 int wait(); 00077 00078 bool running(); 00079 int exitStatus(); 00080 void waitForSuccess(); 00081 00085 int wait(struct rusage* ru); 00086 00088 void kill(int signal); 00089 }; 00090 00091 } 00092 } 00093 00094 // vim:set ts=4 sw=4: 00095 #endif