protoent_mutex     45 ext/net/netdb.c     ScmInternalMutex protoent_mutex;
protoent_mutex    273 ext/net/netdb.c     WITH_GLOBAL_LOCK(netdb_data.protoent_mutex,
protoent_mutex    313 ext/net/netdb.c     WITH_GLOBAL_LOCK(netdb_data.protoent_mutex,
protoent_mutex    555 ext/net/netdb.c     SCM_INTERNAL_MUTEX_INIT(netdb_data.protoent_mutex);