unix-socket.hon commit wrapper: move is_empty_file() and rename it as is_empty_or_missing_file() (e3b1e3b)
   1#ifndef UNIX_SOCKET_H
   2#define UNIX_SOCKET_H
   3
   4int unix_stream_connect(const char *path);
   5int unix_stream_listen(const char *path);
   6
   7#endif /* UNIX_SOCKET_H */