31 lines
690 B
C
31 lines
690 B
C
/* machine/_arc4random.h
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Copyright 2016 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _MACHINE_ARC4RANDOM_H
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#define _MACHINE_ARC4RANDOM_H
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extern int __isthreaded;
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#define _ARC4_LOCK_INIT __LOCK_INIT(static, _arc4random_mutex);
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#define _ARC4_LOCK() \
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do { \
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if (__isthreaded) \
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__lock_acquire (_arc4random_mutex); \
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} while (0)
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#define _ARC4_UNLOCK() \
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do { \
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if (__isthreaded) \
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__lock_release (_arc4random_mutex); \
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} while (0)
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#endif /* _MACHINE_ARC4RANDOM_H */
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