diff options
Diffstat (limited to 'lib/kernel/src/gen_udp.erl')
| -rw-r--r-- | lib/kernel/src/gen_udp.erl | 87 |
1 files changed, 68 insertions, 19 deletions
diff --git a/lib/kernel/src/gen_udp.erl b/lib/kernel/src/gen_udp.erl index 7d14615c04..8688799ae9 100644 --- a/lib/kernel/src/gen_udp.erl +++ b/lib/kernel/src/gen_udp.erl @@ -25,25 +25,74 @@ -include("inet_int.hrl"). --type hostname() :: inet:hostname(). --type ip_address() :: inet:ip_address(). --type port_number() :: 0..65535. --type posix() :: inet:posix(). +-type option() :: + {active, true | false | once} | + {add_membership, {inet:ip_address(), inet:ip_address()}} | + {broadcast, boolean()} | + {buffer, non_neg_integer()} | + {deliver, port | term} | + {dontroute, boolean()} | + {drop_membership, {inet:ip_address(), inet:ip_address()}} | + {header, non_neg_integer()} | + {mode, list | binary} | list | binary | + {multicast_if, inet:ip_address()} | + {multicast_loop, boolean()} | + {multicast_ttl, non_neg_integer()} | + {priority, non_neg_integer()} | + {raw, + Protocol :: non_neg_integer(), + OptionNum :: non_neg_integer(), + ValueBin :: binary()} | + {read_packets, non_neg_integer()} | + {recbuf, non_neg_integer()} | + {reuseaddr, boolean()} | + {sndbuf, non_neg_integer()} | + {tos, non_neg_integer()}. +-type option_name() :: + active | + broadcast | + buffer | + deliver | + dontroute | + header | + mode | + multicast_if | + multicast_loop | + multicast_ttl | + priority | + {raw, + Protocol :: non_neg_integer(), + OptionNum :: non_neg_integer(), + ValueSpec :: (ValueSize :: non_neg_integer()) | + (ValueBin :: binary())} | + read_packets | + recbuf | + reuseaddr | + sndbuf | + tos. -type socket() :: port(). +-export_type([option/0, option_name/0]). + -spec open(Port) -> {ok, Socket} | {error, Reason} when - Port :: port_number(), + Port :: inet:port_number(), Socket :: socket(), - Reason :: posix(). + Reason :: inet:posix(). open(Port) -> open(Port, []). -spec open(Port, Opts) -> {ok, Socket} | {error, Reason} when - Port :: port_number(), - Opts :: [Opt :: term()], + Port :: inet:port_number(), + Opts :: [Option], + Option :: {ip, inet:ip_address()} + | {fd, non_neg_integer()} + | {ifaddr, inet:ip_address()} + | inet:address_family() + | {port, inet:port_number()} + | option(), Socket :: socket(), - Reason :: posix(). + Reason :: inet:posix(). open(Port, Opts) -> Mod = mod(Opts, undefined), @@ -58,10 +107,10 @@ close(S) -> -spec send(Socket, Address, Port, Packet) -> ok | {error, Reason} when Socket :: socket(), - Address :: ip_address() | hostname(), - Port :: port_number(), - Packet :: string() | binary(), - Reason :: not_owner | posix(). + Address :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), + Packet :: iodata(), + Reason :: not_owner | inet:posix(). send(S, Address, Port, Packet) when is_port(S) -> case inet_db:lookup_socket(S) of @@ -92,10 +141,10 @@ send(S, Packet) when is_port(S) -> {ok, {Address, Port, Packet}} | {error, Reason} when Socket :: socket(), Length :: non_neg_integer(), - Address :: ip_address(), - Port :: port_number(), + Address :: inet:ip_address(), + Port :: inet:port_number(), Packet :: string() | binary(), - Reason :: not_owner | posix(). + Reason :: not_owner | inet:posix(). recv(S,Len) when is_port(S), is_integer(Len) -> case inet_db:lookup_socket(S) of @@ -110,10 +159,10 @@ recv(S,Len) when is_port(S), is_integer(Len) -> Socket :: socket(), Length :: non_neg_integer(), Timeout :: timeout(), - Address :: ip_address(), - Port :: port_number(), + Address :: inet:ip_address(), + Port :: inet:port_number(), Packet :: string() | binary(), - Reason :: not_owner | posix(). + Reason :: not_owner | inet:posix(). recv(S,Len,Time) when is_port(S) -> case inet_db:lookup_socket(S) of |