Paul Davis
3d0a53a1ad
git-svn-id: svn://localhost/ardour2/branches/3.0@8050 d708f5d6-7413-0410-9779-e7cbd77b26cf
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*
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Copyright (C) 2010 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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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#include "pbd/semutils.h"
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#include "pbd/failed_constructor.h"
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using namespace PBD;
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ProcessSemaphore::ProcessSemaphore (const char* name, int val)
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{
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#ifdef __APPLE__
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if ((_sem = sem_open (name, O_CREAT, 0600, val)) == (sem_t*) SEM_FAILED) {
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throw failed_constructor ();
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}
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/* this semaphore does not exist for IPC */
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if (sem_unlink (name)) {
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throw failed_constructor ();
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}
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#else
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if (sem_init (&_sem, 0, val)) {
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throw failed_constructor ();
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}
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#endif
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}
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ProcessSemaphore::~ProcessSemaphore ()
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{
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#ifdef __APPLE__
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sem_close (ptr_to_sem());
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#endif
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}
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