childprocess.h

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#ifndef WIBBLE_SYS_CHILDPROCESS_H
#define WIBBLE_SYS_CHILDPROCESS_H

/*
 * OO base class for process functions and child processes
 *
 * Copyright (C) 2003--2006  Enrico Zini <enrico@debian.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 */

#include <sys/types.h>
#include <wibble/exception.h>
#include <wibble/sys/macros.h>

struct rusage;

namespace wibble {
namespace sys {

class ChildProcess
{
protected:
    pid_t _pid;
        int m_status;
        void waitError();

    // TODO: since the destructor is called twice (one in the parent and one in
    // the child), it could be useful to add a bool isChild() method to let the
    // destructor and other functions know where they are operating.  The value
    // returned can be set by ChildProcess::fork.
    virtual int main() = 0;

public:
    ChildProcess() : _pid(-1) {}
    virtual ~ChildProcess() {}

    pid_t fork();

    pid_t forkAndRedirect(int* stdinfd = 0, int* stdoutfd = 0, int* stderrfd = 0);
    
    pid_t pid() const { return _pid; }

    int wait();

        bool running();
        int exitStatus();
        void waitForSuccess();

    int wait(struct rusage* ru);

    void kill(int signal);
};

}
}

// vim:set ts=4 sw=4:
#endif

---