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#ifndef __SYS_EVENTFD_H
#define __SYS_EVENTFD_H
#include <sys/cdefs.h>
__BEGIN_DECLS
typedef __UINT64_TYPE__ eventfd_t;
#define EFD_SEMAPHORE (1 << 0)
#define EFD_CLOEXEC 02000000
#define EFD_NONBLOCK 00004000
int eventfd(unsigned int, int);
int eventfd_read(int, eventfd_t *);
int eventfd_write(int, eventfd_t);
__END_DECLS
#endif
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