diff options
Diffstat (limited to 'ext/socket')
| -rw-r--r-- | ext/socket/tcpsocket.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/ext/socket/tcpsocket.c b/ext/socket/tcpsocket.c index a7a82fd880..012a8f5a64 100644 --- a/ext/socket/tcpsocket.c +++ b/ext/socket/tcpsocket.c @@ -41,7 +41,16 @@ tcp_sockaddr(struct sockaddr *addr, socklen_t len) * call-seq: * TCPSocket.gethostbyname(hostname) => [official_hostname, alias_hostnames, address_family, *address_list] * - * Lookups host information by _hostname_. + * Use Addrinfo.getaddrinfo instead. + * This method is deprecated since following reasons: + * + * - The 3rd element of result is the address family of the first address. + * The address families of rest addresses are not returned. + * - gethostbyname() is may take long time and it may block other threads. + * (GVL cannot be released since gethostbyname() is not thread safe.) + * - This method uses gethostbyname() function already removed from POSIX. + * + * This method lookups host information by _hostname_. * * TCPSocket.gethostbyname("localhost") * #=> ["localhost", ["hal"], 2, "127.0.0.1"] |