_rm_assert
_rm_assert(rm, RA_UNLOCKED, file, line);
_rm_assert(rm, RA_WLOCKED, file, line);
_rm_assert(rm, RA_RLOCKED, file, line);
#define rm_assert(rm, what) _rm_assert((rm), (what), LOCK_FILE, LOCK_LINE)
void _rm_assert(const struct rmlock *rm, int what, const char *file,