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livetrax/libs/pbd/pbd/semutils.h
John Emmas b855e5f322 Merge remote-tracking branch 'remotes/origin/exportvis' into windows+cc
Conflicts (hopefully resolved):
	gtk2_ardour/wscript
	libs/ardour/ardour/audioregion.h
	libs/ardour/ardour/debug.h
	libs/ardour/ardour/directory_names.h
	libs/ardour/ardour/filesystem_paths.h
	libs/ardour/ardour/session_event.h
	libs/gtkmm2ext/gtkmm2ext/utils.h
	libs/panners/1in2out/wscript
	libs/panners/2in2out/wscript
	libs/panners/vbap/wscript
	libs/pbd/pbd/debug.h
	libs/pbd/pbd/file_utils.h
	libs/pbd/pbd/pathexpand.h
	libs/pbd/pbd/ringbuffer.h
	libs/pbd/pbd/ringbufferNPT.h
	libs/pbd/pbd/search_path.h
	libs/pbd/pbd/stacktrace.h
	libs/pbd/pbd/uuid.h
	libs/pbd/pbd/uuid_boost.h
	libs/surfaces/control_protocol/control_protocol/basic_ui.h
	libs/surfaces/control_protocol/control_protocol/control_protocol.h
2013-10-18 10:03:22 +01:00

63 lines
1.4 KiB
C++

/*
Copyright (C) 2010 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __pbd_semutils_h__
#define __pbd_semutils_h__
#ifdef PLATFORM_WINDOWS
#include <windows.h>
#else
#include <semaphore.h>
#endif
#include "pbd/libpbd_visibility.h"
namespace PBD {
class LIBPBD_API ProcessSemaphore {
private:
#ifdef PLATFORM_WINDOWS
HANDLE _sem;
#elif __APPLE__
sem_t* _sem;
sem_t* ptr_to_sem() const { return _sem; }
#else
mutable sem_t _sem;
sem_t* ptr_to_sem() const { return &_sem; }
#endif
public:
ProcessSemaphore (const char* name, int val);
~ProcessSemaphore ();
#ifdef PLATFORM_WINDOWS
int signal ();
int wait ();
#else
int signal () { return sem_post (ptr_to_sem()); }
int wait () { return sem_wait (ptr_to_sem()); }
#endif
};
}
#endif /* __pbd_semutils_h__ */