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| author | David Robillard <d@drobilla.net> | 2012-08-13 00:40:00 +0000 |
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| committer | David Robillard <d@drobilla.net> | 2012-08-13 00:40:00 +0000 |
| commit | 4944976e40254bb57337e3544dc067133f140637 (patch) | |
| tree | f715870bd264036f068061f44385e554072143f2 /raul/barrier.hpp | |
| parent | 25fa6229ce2c4edc0960d39cbc424e834a4244ea (diff) | |
| download | raul-4944976e40254bb57337e3544dc067133f140637.tar.gz raul-4944976e40254bb57337e3544dc067133f140637.tar.bz2 raul-4944976e40254bb57337e3544dc067133f140637.zip | |
Add Raul::barrier() and remove glib dependency from RingBuffer.
Improve RingBuffer performance.
git-svn-id: http://svn.drobilla.net/lad/trunk/raul@4674 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'raul/barrier.hpp')
| -rw-r--r-- | raul/barrier.hpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/raul/barrier.hpp b/raul/barrier.hpp new file mode 100644 index 0000000..952278e --- /dev/null +++ b/raul/barrier.hpp @@ -0,0 +1,56 @@ +/* + This file is part of Raul. + Copyright 2012 David Robillard <http://drobilla.net> + + Raul 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 3 of the License, or any later version. + + Raul 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 Raul. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef RAUL_BARRIER_HPP +#define RAUL_BARRIER_HPP + +#if defined(__APPLE__) +#include <libkern/OSAtomic.h> + +namespace Raul { +static inline void barrier() { + OSMemoryBarrier(); +} +} + +#elif defined(_WIN32) +#include <windows.h> + +namespace Raul { +static inline void barrier() { + MemoryBarrier(); +} +} + +#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) + +namespace Raul { +static inline void barrier() { + __sync_synchronize(); +} +} + +#else +#pragma message("warning: No memory barriers, possible SMP bugs") + +namespace Raul { +static inline void barrier() { +} +} + +#endif + +#endif // RAUL_BARRIER_HPP |