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28 lines
799 B
C
28 lines
799 B
C
#ifndef _NEWLIB_STDIO_H
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#define _NEWLIB_STDIO_H
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#include <sys/lock.h>
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#include <sys/reent.h>
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/* Internal locking macros, used to protect stdio functions. In the
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general case, expand to nothing. Use __SSTR flag in FILE _flags to
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detect if FILE is private to sprintf/sscanf class of functions; if
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set then do nothing as lock is not initialised. */
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#if !defined(_flockfile)
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#ifndef __SINGLE_THREAD__
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# define _flockfile(fp) (((fp)->_flags & __SSTR) ? 0 : __lock_acquire_recursive((fp)->_lock))
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#else
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# define _flockfile(fp) ((void) 0)
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#endif
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#endif
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#if !defined(_funlockfile)
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#ifndef __SINGLE_THREAD__
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# define _funlockfile(fp) (((fp)->_flags & __SSTR) ? 0 : __lock_release_recursive((fp)->_lock))
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#else
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# define _funlockfile(fp) ((void) 0)
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#endif
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#endif
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#endif /* _NEWLIB_STDIO_H */
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