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-rw-r--r--erts/doc/src/erl.xml2
-rw-r--r--lib/dialyzer/src/dialyzer_contracts.erl7
-rw-r--r--lib/dialyzer/src/dialyzer_dataflow.erl18
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl10
-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/limit.erl20
-rw-r--r--lib/dialyzer/test/underspecs_SUITE_data/results/arr4
-rw-r--r--lib/dialyzer/test/underspecs_SUITE_data/src/arr.erl41
-rw-r--r--lib/hipe/cerl/erl_bif_types.erl20
-rw-r--r--lib/hipe/cerl/erl_types.erl4
-rw-r--r--lib/kernel/src/erl_epmd.erl15
-rw-r--r--lib/kernel/src/net_adm.erl9
-rw-r--r--lib/ssh/test/ssh_basic_SUITE.erl97
12 files changed, 194 insertions, 53 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index 5bde285311..f856b9ab86 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -1186,7 +1186,7 @@
utilization.
</p>
</item>
- <tag><marker id="+swct"><c>+sws very_eager|eager|medium|lazy|very_lazy</c></marker></tag>
+ <tag><marker id="+swct"><c>+swct very_eager|eager|medium|lazy|very_lazy</c></marker></tag>
<item>
<p>
Set scheduler wake cleanup threshold. Default is <c>medium</c>.
diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl
index 1d2dfc7b2d..f27fc1a842 100644
--- a/lib/dialyzer/src/dialyzer_contracts.erl
+++ b/lib/dialyzer/src/dialyzer_contracts.erl
@@ -20,8 +20,6 @@
-module(dialyzer_contracts).
--compile(export_all).
-
-export([check_contract/2,
check_contracts/4,
contracts_without_fun/3,
@@ -686,7 +684,7 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) ->
true -> Acc;
false ->
case extra_contract_warning(MFA, FileLine, Contract,
- CSig, Sig, RecDict) of
+ CSig0, Sig0, RecDict) of
no_warning -> Acc;
{warning, Warning} -> [Warning|Acc]
end
@@ -752,7 +750,8 @@ is_remote_types_related(Contract, CSig, Sig, RecDict) ->
t_from_forms_without_remote([{FType, []}], RecDict) ->
Type0 = erl_types:t_from_form(FType, RecDict),
- {ok, erl_types:subst_all_remote(Type0, erl_types:t_none())};
+ Type1 = erl_types:subst_all_remote(Type0, erl_types:t_none()),
+ {ok, erl_types:subst_all_vars_to_any(Type1)};
t_from_forms_without_remote([{_FType, _Constrs}], _RecDict) ->
%% 'When' constraints
unsupported;
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
index 92aab68ad6..03005e689f 100644
--- a/lib/dialyzer/src/dialyzer_dataflow.erl
+++ b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -93,6 +93,8 @@
-define(TYPE_LIMIT, 3).
+-define(BITS, 128).
+
-record(state, {callgraph :: dialyzer_callgraph:callgraph(),
envs :: env_tab(),
fun_tab :: fun_tab(),
@@ -1610,10 +1612,18 @@ bind_bin_segs([Seg|Segs], BinType, Acc, Map, State) ->
SizeVal = lists:max(List),
Flags = cerl:concrete(cerl:bitstr_flags(Seg)),
N = SizeVal * UnitVal,
- case lists:member(signed, Flags) of
- true -> t_from_range(-(1 bsl (N - 1)), 1 bsl (N - 1) - 1);
- false -> t_from_range(0, 1 bsl N - 1)
- end
+ case N >= ?BITS of
+ true ->
+ case lists:member(signed, Flags) of
+ true -> t_from_range(neg_inf, pos_inf);
+ false -> t_from_range(0, pos_inf)
+ end;
+ false ->
+ case lists:member(signed, Flags) of
+ true -> t_from_range(-(1 bsl (N - 1)), 1 bsl (N - 1) - 1);
+ false -> t_from_range(0, 1 bsl N - 1)
+ end
+ end
end
end,
{Map2, [_]} = bind_pat_vars([Val], [ValConstr], [], Map1, State, false),
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl b/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl
new file mode 100644
index 0000000000..28d739de8e
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl
@@ -0,0 +1,10 @@
+%% Second arg of is_record call wasn't checked properly
+
+-module(opaque_bug5).
+
+-export([b/0]).
+
+b() ->
+ is_record(id({a}), id(a)).
+
+id(I) -> I.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/limit.erl b/lib/dialyzer/test/small_SUITE_data/src/limit.erl
new file mode 100644
index 0000000000..97ee585b77
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/limit.erl
@@ -0,0 +1,20 @@
+%% Misc cases where Dialyzer would fail with system_limit or crash
+
+-module(limit).
+
+-export([tu/0, big/1, b2/0]).
+
+tu() ->
+ erlang:make_tuple(1 bsl 24, def, [{5,e},{1,a},{3,c}]).
+
+big(<<Int:1152921504606846976/unit:128,0,_/binary>>) -> {5,Int}.
+
+b2() ->
+ Maxbig = maxbig(),
+ _ = bnot Maxbig,
+ ok.
+
+maxbig() ->
+ %% We assume that the maximum arity is (1 bsl 19) - 1.
+ Ws = erlang:system_info(wordsize),
+ (((1 bsl ((16777184 * (Ws div 4))-1)) - 1) bsl 1) + 1.
diff --git a/lib/dialyzer/test/underspecs_SUITE_data/results/arr b/lib/dialyzer/test/underspecs_SUITE_data/results/arr
new file mode 100644
index 0000000000..9497d12eec
--- /dev/null
+++ b/lib/dialyzer/test/underspecs_SUITE_data/results/arr
@@ -0,0 +1,4 @@
+
+arr.erl:14: Type specification arr:test2(array:array(T),non_neg_integer(),T) -> array:array(T) is a supertype of the success typing: arr:test2(array:array(_),pos_integer(),_) -> array:array(_)
+arr.erl:24: Type specification arr:test4(array:array(T),non_neg_integer(),_) -> array:array(T) is a supertype of the success typing: arr:test4(array:array(_),pos_integer(),_) -> array:array(_)
+arr.erl:29: Type specification arr:test5(array:array(T),non_neg_integer(),T) -> array:array(T) is a supertype of the success typing: arr:test5(array:array(_),non_neg_integer(),integer()) -> array:array(_)
diff --git a/lib/dialyzer/test/underspecs_SUITE_data/src/arr.erl b/lib/dialyzer/test/underspecs_SUITE_data/src/arr.erl
new file mode 100644
index 0000000000..3b265ccec2
--- /dev/null
+++ b/lib/dialyzer/test/underspecs_SUITE_data/src/arr.erl
@@ -0,0 +1,41 @@
+-module(arr).
+
+%% http://erlang.org/pipermail/erlang-questions/2014-August/080445.html
+
+-define(A, array).
+
+-export([test/3, test2/3, test3/3, test4/3, test5/3, test6/3]).
+
+-spec test(?A:array(T), non_neg_integer(), T) -> ?A:array(T).
+
+test(Array, N, Value) ->
+ ?A:set(N, Value, Array).
+
+-spec test2(?A:array(T), non_neg_integer(), T) -> ?A:array(T).
+
+test2(Array, N, Value) when N > 0 ->
+ ?A:set(N, Value, Array).
+
+-spec test3(?A:array(T), non_neg_integer(), _) -> ?A:array(T).
+
+test3(Array, N, Value) ->
+ ?A:set(N, Value, Array).
+
+-spec test4(?A:array(T), non_neg_integer(), _) -> ?A:array(T).
+
+test4(Array, N, Value) when N > 0 ->
+ ?A:set(N, Value, Array).
+
+-spec test5(?A:array(T), non_neg_integer(), T) -> ?A:array(T).
+
+test5(Array, N, Value) when is_integer(Value) ->
+ ?A:set(N, Value, Array).
+
+%% One would ideally want a warning also for test6(), but the current
+%% analysis of parametrized opaque types is not strong enough to
+%% discover this.
+-spec test6(?A:array(integer()), non_neg_integer(), integer()) ->
+ ?A:array(any()).
+
+test6(Array, N, Value) ->
+ ?A:set(N, Value, Array).
diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl
index a460f16272..74e93bf098 100644
--- a/lib/hipe/cerl/erl_bif_types.erl
+++ b/lib/hipe/cerl/erl_bif_types.erl
@@ -2,7 +2,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2003-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -1891,7 +1891,11 @@ infinity_add(neg_inf, _Number) -> neg_inf;
infinity_add(_Number, pos_inf) -> pos_inf;
infinity_add(_Number, neg_inf) -> neg_inf;
infinity_add(Number1, Number2) when is_integer(Number1), is_integer(Number2) ->
- Number1 + Number2.
+ try Number1 + Number2
+ catch
+ error:system_limit when Number1 < 0 -> neg_inf;
+ error:system_limit -> pos_inf
+ end.
infinity_mult(neg_inf, Number) ->
Greater = infinity_geq(Number, 0),
@@ -1902,7 +1906,13 @@ infinity_mult(pos_inf, Number) -> infinity_inv(infinity_mult(neg_inf, Number));
infinity_mult(Number, pos_inf) -> infinity_inv(infinity_mult(neg_inf, Number));
infinity_mult(Number, neg_inf) -> infinity_mult(neg_inf, Number);
infinity_mult(Number1, Number2) when is_integer(Number1), is_integer(Number2)->
- Number1 * Number2.
+ try Number1 * Number2
+ catch
+ error:system_limit ->
+ if (Number1 >= 0) =:= (Number2 >= 0) -> pos_inf;
+ true -> neg_inf
+ end
+ end.
width({Min, Max}) -> infinity_max([width(Min), width(Max)]);
width(pos_inf) -> pos_inf;
@@ -2633,7 +2643,9 @@ opaque_args(M, F, A, Xs, Opaques) ->
true ->
case t_tuple_subtypes(X, Opaques) of
unknown -> false;
- List when length(List) >= 1 -> opaque_recargs(List, Y, Opaques)
+ List when length(List) >= 1 ->
+ (t_is_atom(Y, Opaques) andalso
+ opaque_recargs(List, Y, Opaques))
end;
false -> t_has_opaque_subtype(X, Opaques)
end];
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 0927c17b6b..4b2bec5fa8 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -262,6 +262,8 @@
-define(TAG_IMMED1_SIZE, 4).
-define(BITS, (erlang:system_info(wordsize) * 8) - ?TAG_IMMED1_SIZE).
+-define(MAX_TUPLE_SIZE, (1 bsl 10)).
+
%%-----------------------------------------------------------------------------
%% Type tags and qualifiers
%%
@@ -1770,6 +1772,8 @@ t_tuple() ->
-spec t_tuple(non_neg_integer() | [erl_type()]) -> erl_type().
+t_tuple(N) when is_integer(N), N > ?MAX_TUPLE_SIZE ->
+ t_tuple();
t_tuple(N) when is_integer(N) ->
?tuple(lists:duplicate(N, ?any), N, ?any);
t_tuple(List) ->
diff --git a/lib/kernel/src/erl_epmd.erl b/lib/kernel/src/erl_epmd.erl
index b4fae24ef3..f6e2ca0954 100644
--- a/lib/kernel/src/erl_epmd.erl
+++ b/lib/kernel/src/erl_epmd.erl
@@ -85,24 +85,19 @@ port_please1(Node,HostName, Timeout) ->
Else
end.
-names() ->
+names() ->
{ok, H} = inet:gethostname(),
names(H).
-names(HostName) when is_atom(HostName) ->
- names1(atom_to_list(HostName));
-names(HostName) when is_list(HostName) ->
- names1(HostName);
-names(EpmdAddr) ->
- get_names(EpmdAddr).
-
-names1(HostName) ->
+names(HostName) when is_atom(HostName); is_list(HostName) ->
case inet:gethostbyname(HostName) of
{ok,{hostent, _Name, _ , _Af, _Size, [EpmdAddr | _]}} ->
get_names(EpmdAddr);
Else ->
Else
- end.
+ end;
+names(EpmdAddr) ->
+ get_names(EpmdAddr).
register_node(Name, PortNo) ->
diff --git a/lib/kernel/src/net_adm.erl b/lib/kernel/src/net_adm.erl
index 3f5eac7822..2cdfb76417 100644
--- a/lib/kernel/src/net_adm.erl
+++ b/lib/kernel/src/net_adm.erl
@@ -89,18 +89,13 @@ names() ->
-spec names(Host) -> {ok, [{Name, Port}]} | {error, Reason} when
- Host :: atom() | string(),
+ Host :: atom() | string() | inet:ip_address(),
Name :: string(),
Port :: non_neg_integer(),
Reason :: address | file:posix().
names(Hostname) ->
- case inet:gethostbyname(Hostname) of
- {ok, {hostent, _Name, _ , _Af, _Size, [Addr | _]}} ->
- erl_epmd:names(Addr);
- Else ->
- Else
- end.
+ erl_epmd:names(Hostname).
-spec dns_hostname(Host) -> {ok, Name} | {error, Host} when
Host :: atom() | string(),
diff --git a/lib/ssh/test/ssh_basic_SUITE.erl b/lib/ssh/test/ssh_basic_SUITE.erl
index 35fca21021..9242731924 100644
--- a/lib/ssh/test/ssh_basic_SUITE.erl
+++ b/lib/ssh/test/ssh_basic_SUITE.erl
@@ -53,7 +53,7 @@ all() ->
{group, hardening_tests}
].
-groups() ->
+groups() ->
[{dsa_key, [], basic_tests()},
{rsa_key, [], basic_tests()},
{dsa_pass_key, [], [pass_phrase]},
@@ -63,7 +63,11 @@ groups() ->
ssh_connect_nonegtimeout_connected_sequential,
ssh_connect_negtimeout_parallel,
ssh_connect_negtimeout_sequential,
- max_sessions]}
+ max_sessions_ssh_connect_parallel,
+ max_sessions_ssh_connect_sequential,
+ max_sessions_sftp_start_channel_parallel,
+ max_sessions_sftp_start_channel_sequential
+ ]}
].
@@ -859,40 +863,87 @@ openssh_zlib_basic_test(Config) ->
%%--------------------------------------------------------------------
-max_sessions(Config) ->
+max_sessions_ssh_connect_parallel(Config) ->
+ max_sessions(Config, true, connect_fun(ssh__connect,Config)).
+max_sessions_ssh_connect_sequential(Config) ->
+ max_sessions(Config, false, connect_fun(ssh__connect,Config)).
+
+max_sessions_sftp_start_channel_parallel(Config) ->
+ max_sessions(Config, true, connect_fun(ssh_sftp__start_channel, Config)).
+max_sessions_sftp_start_channel_sequential(Config) ->
+ max_sessions(Config, false, connect_fun(ssh_sftp__start_channel, Config)).
+
+
+%%%---- helpers:
+connect_fun(ssh__connect, Config) ->
+ fun(Host,Port) ->
+ ssh_test_lib:connect(Host, Port,
+ [{silently_accept_hosts, true},
+ {user_dir, ?config(priv_dir,Config)},
+ {user_interaction, false},
+ {user, "carni"},
+ {password, "meat"}
+ ])
+ %% ssh_test_lib returns R when ssh:connect returns {ok,R}
+ end;
+connect_fun(ssh_sftp__start_channel, _Config) ->
+ fun(Host,Port) ->
+ {ok,_Pid,ConnRef} =
+ ssh_sftp:start_channel(Host, Port,
+ [{silently_accept_hosts, true},
+ {user, "carni"},
+ {password, "meat"}
+ ]),
+ ConnRef
+ end.
+
+
+max_sessions(Config, ParallelLogin, Connect) when is_function(Connect,2) ->
SystemDir = filename:join(?config(priv_dir, Config), system),
UserDir = ?config(priv_dir, Config),
- MaxSessions = 2,
- {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
+ MaxSessions = 5,
+ {Pid, Host, Port} = ssh_test_lib:daemon([
+ {system_dir, SystemDir},
{user_dir, UserDir},
{user_passwords, [{"carni", "meat"}]},
- {parallel_login, true},
+ {parallel_login, ParallelLogin},
{max_sessions, MaxSessions}
]),
- Connect = fun() ->
- R=ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
- {user_dir, UserDir},
- {user_interaction, false},
- {user, "carni"},
- {password, "meat"}
- ]),
- ct:log("Connection ~p up",[R])
- end,
-
- try [Connect() || _ <- lists:seq(1,MaxSessions)]
+ try [Connect(Host,Port) || _ <- lists:seq(1,MaxSessions)]
of
- _ ->
- ct:pal("Expect Info Report:",[]),
- try Connect()
+ Connections ->
+ %% Step 1 ok: could set up max_sessions connections
+ ct:log("Connections up: ~p",[Connections]),
+ [_|_] = Connections,
+
+ %% Now try one more than alowed:
+ ct:pal("Info Report might come here...",[]),
+ try Connect(Host,Port)
of
- _ConnectionRef ->
+ _ConnectionRef1 ->
ssh:stop_daemon(Pid),
{fail,"Too many connections accepted"}
catch
error:{badmatch,{error,"Connection closed"}} ->
- ssh:stop_daemon(Pid),
- ok
+ %% Step 2 ok: could not set up max_sessions+1 connections
+ %% This is expected
+ %% Now stop one connection and try to open one more
+ ok = ssh:close(hd(Connections)),
+ try Connect(Host,Port)
+ of
+ _ConnectionRef1 ->
+ %% Step 3 ok: could set up one more connection after killing one
+ %% Thats good.
+ ssh:stop_daemon(Pid),
+ ok
+ catch
+ error:{badmatch,{error,"Connection closed"}} ->
+ %% Bad indeed. Could not set up one more connection even after killing
+ %% one existing. Very bad.
+ ssh:stop_daemon(Pid),
+ {fail,"Does not decrease # active sessions"}
+ end
end
catch
error:{badmatch,{error,"Connection closed"}} ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 13:08:14 +0000