57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
//
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// Copyright (C) 2001-2003 Graeme Walker <graeme_walker@users.sourceforge.net>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later
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// version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// ===
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//
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// gdaemon_unix.cpp
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//
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#include "gdef.h"
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#include "gdaemon.h"
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#include "gprocess.h"
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//static
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void G::Daemon::detach( PidFile & pid_file )
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{
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pid_file.check() ; // absolute path
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detach() ;
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}
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//static
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void G::Daemon::detach()
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{
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// see Stevens, ISBN 0-201-563137-7, ch 13.
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if( Process::fork() == Process::Parent )
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::_exit( 0 ) ;
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setsid() ;
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(void) Process::cd( "/" , Process::NoThrow() ) ;
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if( Process::fork() == Process::Parent )
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::_exit( 0 ) ;
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}
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void G::Daemon::setsid()
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{
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pid_t session_id = ::setsid() ;
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if( session_id == -1 )
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; // no-op
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}
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