LINUX_IN_NONBLOCK
if (flags & LINUX_IN_NONBLOCK)
if (flags & LINUX_IN_NONBLOCK)
#define LINUX_IN_ALL_FLAGS (LINUX_IN_CLOEXEC|LINUX_IN_NONBLOCK)
RS(fd = syscall(LINUX_SYS_inotify_init1, LINUX_IN_NONBLOCK));