mirror of git://sourceware.org/git/glibc.git
31 lines
1.2 KiB
C
31 lines
1.2 KiB
C
/* Linuxthreads - a simple clone()-based implementation of Posix */
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/* threads for Linux. */
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/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) and */
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/* Richard Henderson (rth@tamu.edu) */
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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 Library General Public License */
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/* as published by the Free Software Foundation; either version 2 */
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/* of the License, or (at your option) any later 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 Library General Public License for more details. */
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/* Spin locks */
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static inline void acquire(int * spinlock)
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{
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while (testandset(spinlock)) __sched_yield();
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}
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static inline void release(int * spinlock)
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{
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#ifndef RELEASE
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*spinlock = 0;
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#else
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RELEASE(spinlock);
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#endif
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}
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