1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
%% Copyright (c) 2011-2019, Loïc Hoguin <[email protected]>
%%
%% Permission to use, copy, modify, and/or distribute this software for any
%% purpose with or without fee is hereby granted, provided that the above
%% copyright notice and this permission notice appear in all copies.
%%
%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-module(gun_tcp).
-export([name/0]).
-export([messages/0]).
-export([connect/4]).
-export([send/2]).
-export([setopts/2]).
-export([sockname/1]).
-export([close/1]).
name() -> tcp.
messages() -> {tcp, tcp_closed, tcp_error}.
-spec connect(inet:ip_address() | inet:hostname(),
inet:port_number(), any(), timeout())
-> {ok, inet:socket()} | {error, atom()}.
connect(Host, Port, Opts, Timeout) when is_integer(Port) ->
gen_tcp:connect(Host, Port,
Opts ++ [binary, {active, false}, {packet, raw}],
Timeout).
-spec send(inet:socket(), iodata()) -> ok | {error, atom()}.
send(Socket, Packet) ->
gen_tcp:send(Socket, Packet).
-spec setopts(inet:socket(), list()) -> ok | {error, atom()}.
setopts(Socket, Opts) ->
inet:setopts(Socket, Opts).
-spec sockname(inet:socket())
-> {ok, {inet:ip_address(), inet:port_number()}} | {error, atom()}.
sockname(Socket) ->
inet:sockname(Socket).
-spec close(inet:socket()) -> ok.
close(Socket) ->
gen_tcp:close(Socket).
|
