Add an accept timeout for code reloading.

Thought it was already there, but I guess not. Anyway it's here now
so everything is back to normal. ;)

src/cowboy_acceptor.erl

@@ -32,11 +32,13 @@ start_link(LSocket, Transport, Protocol, Opts, ReqsSup) ->
 -spec acceptor(LSocket::socket(), Transport::module(),
 	Protocol::module(), Opts::term(), ReqsSup::pid()) -> no_return().
 acceptor(LSocket, Transport, Protocol, Opts, ReqsSup) ->
-	case Transport:accept(LSocket) of
+	case Transport:accept(LSocket, 2000) of
 		{ok, CSocket} ->
 			{ok, Pid} = supervisor:start_child(ReqsSup,
 				[CSocket, Transport, Protocol, Opts]),
 			Transport:controlling_process(CSocket, Pid);
+		{error, timeout} ->
+			ignore;
 		{error, _Reason} ->
 			%% @todo Probably do something here. If the socket was closed,
 			%%       we may want to try and listen again on the port?

src/cowboy_ssl_transport.erl

@@ -13,7 +13,7 @@
 %% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 -module(cowboy_ssl_transport).
--export([name/0, messages/0, listen/1, accept/1, recv/3, send/2, setopts/2,
+-export([name/0, messages/0, listen/1, accept/2, recv/3, send/2, setopts/2,
 	controlling_process/2, peername/1, close/1]). %% API.
 
 -include("include/types.hrl").
@@ -38,12 +38,12 @@ listen(Opts) ->
 		{packet, raw}, {reuseaddr, true},
 		{certfile, CertFile}, {keyfile, KeyFile}, {password, Password}]).
 
--spec accept(LSocket::sslsocket())
+-spec accept(LSocket::sslsocket(), Timeout::timeout())
 	-> {ok, Socket::sslsocket()} | {error, Reason::closed | timeout | posix()}.
-accept(LSocket) ->
-	case ssl:transport_accept(LSocket) of
+accept(LSocket, Timeout) ->
+	case ssl:transport_accept(LSocket, Timeout) of
 		{ok, CSocket} ->
-			ssl_accept(CSocket);
+			ssl_accept(CSocket, Timeout);
 		{error, Reason} ->
 			{error, Reason}
 	end.
@@ -79,10 +79,10 @@ close(Socket) ->
 
 %% Internal.
 
--spec ssl_accept(CSocket::sslsocket())
+-spec ssl_accept(CSocket::sslsocket(), Timeout::timeout())
 	-> {ok, Socket::sslsocket()} | {error, Reason::closed | timeout | posix()}.
-ssl_accept(CSocket) ->
-	case ssl:ssl_accept(CSocket) of
+ssl_accept(CSocket, Timeout) ->
+	case ssl:ssl_accept(CSocket, Timeout) of
 		ok ->
 			{ok, CSocket};
 		{error, Reason} ->

src/cowboy_tcp_transport.erl

@@ -13,7 +13,7 @@
 %% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 -module(cowboy_tcp_transport).
--export([name/0, messages/0, listen/1, accept/1, recv/3, send/2, setopts/2,
+-export([name/0, messages/0, listen/1, accept/2, recv/3, send/2, setopts/2,
 	controlling_process/2, peername/1, close/1]). %% API.
 
 -include("include/types.hrl").
@@ -33,10 +33,10 @@ listen(Opts) ->
 	gen_tcp:listen(Port, [binary, {active, false},
 		{packet, raw}, {reuseaddr, true}]).
 
--spec accept(LSocket::socket())
+-spec accept(LSocket::socket(), Timeout::timeout())
 	-> {ok, Socket::socket()} | {error, Reason::closed | timeout | posix()}.
-accept(LSocket) ->
-	gen_tcp:accept(LSocket).
+accept(LSocket, Timeout) ->
+	gen_tcp:accept(LSocket, Timeout).
 
 -spec recv(Socket::socket(), Length::integer(), Timeout::timeout())
 	-> {ok, Packet::term()} | {error, Reason::closed | posix()}.