15     RK_S32 fd = eventfd(init, 0);  in mpp_eventfd_get()  local
17     if (fd < 0)  in mpp_eventfd_get()
18         fd = errno;  in mpp_eventfd_get()
20     return fd;  in mpp_eventfd_get()
23 RK_S32 mpp_eventfd_put(RK_S32 fd)  in mpp_eventfd_put()  argument
25     if (fd >= 0)  in mpp_eventfd_put()
26         close(fd);  in mpp_eventfd_put()
31 RK_S32 mpp_eventfd_read(RK_S32 fd, RK_U64 *val, RK_S64 timeout)  in mpp_eventfd_read()  argument
40     nfds.fd = fd;  in mpp_eventfd_read()
45         sizeof(RK_U64) == read(fd, val, sizeof(RK_U64))) {  in mpp_eventfd_read()
53 RK_S32 mpp_eventfd_write(RK_S32 fd, RK_U64 val)  in mpp_eventfd_write()  argument
57     if (sizeof(RK_U64) != write(fd, &val, sizeof(val)))  in mpp_eventfd_write()