1#include <sys/eventfd.h>
 2#include <unistd.h>
 3#include <errno.h>
 4#include "syscall.h"
 5
 6int eventfd(unsigned int count, int flags)
 7{
 8	int r = __syscall(SYS_eventfd2, count, flags);
 9#ifdef SYS_eventfd
10	if (r==-ENOSYS && !flags) r = __syscall(SYS_eventfd, count);
11#endif
12	return __syscall_ret(r);
13}
14
15int eventfd_read(int fd, eventfd_t *value)
16{
17	return (sizeof(*value) == read(fd, value, sizeof(*value))) ? 0 : -1;
18}
19
20int eventfd_write(int fd, eventfd_t value)
21{
22	return (sizeof(value) == write(fd, &value, sizeof(value))) ? 0 : -1;
23}