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authorIngela Anderton Andin <[email protected]>2012-08-28 11:09:08 +0200
committerIngela Anderton Andin <[email protected]>2012-08-28 11:09:08 +0200
commitb9a7003314280a22ea145758542b6a96c75a139a (patch)
treee35f39dff6dcd1af3ca2ab2ca58d429f9d9bc0a2 /lib/ssh/src
parent3a354d40ed3ef0604e1caf78f8995e01de3c8b89 (diff)
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ssh: Correct error handling of ssh connect
Diffstat (limited to 'lib/ssh/src')
-rw-r--r--lib/ssh/src/ssh.erl31
-rw-r--r--lib/ssh/src/ssh_connection_sup.erl10
2 files changed, 9 insertions, 32 deletions
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl
index 85f5f680e6..3395f73884 100644
--- a/lib/ssh/src/ssh.erl
+++ b/lib/ssh/src/ssh.erl
@@ -91,10 +91,8 @@ do_connect(Host, Port, SocketOptions, SshOptions, Timeout, DisableIpv6) ->
{ok, ConnectionSup} ->
{ok, Manager} =
ssh_connection_sup:connection_manager(ConnectionSup),
- MRef = erlang:monitor(process, Manager),
receive
{Manager, is_connected} ->
- do_demonitor(MRef, Manager),
{ok, Manager};
%% When the connection fails
%% ssh_connection_sup:connection_manager
@@ -102,30 +100,13 @@ do_connect(Host, Port, SocketOptions, SshOptions, Timeout, DisableIpv6) ->
%% could allready have terminated, so we will not
%% match the Manager in this case
{_, not_connected, {error, econnrefused}} when DisableIpv6 == false ->
- do_demonitor(MRef, Manager),
do_connect(Host, Port, proplists:delete(inet6, SocketOptions),
SshOptions, Timeout, true);
{_, not_connected, {error, Reason}} ->
- do_demonitor(MRef, Manager),
{error, Reason};
{_, not_connected, Other} ->
- do_demonitor(MRef, Manager),
- {error, Other};
- {'DOWN', MRef, _, Manager, Reason} when is_pid(Manager) ->
- error_logger:warning_report([{ssh, connect},
- {diagnose,
- "Connection was closed before properly set up."},
- {host, Host},
- {port, Port},
- {reason, Reason}]),
- receive %% Clear EXIT message from queue
- {'EXIT', Manager, _What} ->
- {error, channel_closed}
- after 0 ->
- {error, channel_closed}
- end
+ {error, Other}
after Timeout ->
- do_demonitor(MRef, Manager),
ssh_connection_manager:stop(Manager),
{error, timeout}
end
@@ -134,16 +115,6 @@ do_connect(Host, Port, SocketOptions, SshOptions, Timeout, DisableIpv6) ->
{error, ssh_not_started}
end.
-do_demonitor(MRef, Manager) ->
- erlang:demonitor(MRef),
- receive
- {'DOWN', MRef, _, Manager, _} ->
- ok
- after 0 ->
- ok
- end.
-
-
%%--------------------------------------------------------------------
%% Function: close(ConnectionRef) -> ok
%%
diff --git a/lib/ssh/src/ssh_connection_sup.erl b/lib/ssh/src/ssh_connection_sup.erl
index e3544af1c6..b620056310 100644
--- a/lib/ssh/src/ssh_connection_sup.erl
+++ b/lib/ssh/src/ssh_connection_sup.erl
@@ -48,8 +48,12 @@ start_manager_child(Sup, Args) ->
supervisor:start_child(Sup, Spec).
connection_manager(SupPid) ->
- Children = supervisor:which_children(SupPid),
- {ok, ssh_connection_manager(Children)}.
+ try supervisor:which_children(SupPid) of
+ Children ->
+ {ok, ssh_connection_manager(Children)}
+ catch exit:{noproc,_} ->
+ {ok, undefined}
+ end.
%%%=========================================================================
%%% Supervisor callback
@@ -107,6 +111,8 @@ handler_spec([Role, Socket, Opts]) ->
Type = worker,
{Name, StartFunc, Restart, Shutdown, Type, Modules}.
+ssh_connection_manager([]) ->
+ undefined;
ssh_connection_manager([{_, Child, _, [ssh_connection_manager]} | _]) ->
Child;
ssh_connection_manager([_ | Rest]) ->