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authorBjörn Gustavsson <[email protected]>2017-03-09 16:15:13 +0100
committerBjörn Gustavsson <[email protected]>2017-03-10 10:37:49 +0100
commit59524c3fff40ac9792bb92449eb594fed52b423e (patch)
tree77cc09bdd9eee8340c5f188f30073f69dd6f2375 /lib/stdlib
parent1f38a7d26ef86676ad6be0d2bce9b65c1f87253b (diff)
downloadotp-59524c3fff40ac9792bb92449eb594fed52b423e.tar.gz
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erl_tar: Close files after reading from a tar file
Also let the test suite verify that all files that are opened will be closed before the end of each test case. aa0c4b0df7cdc7 introduced the file descriptor leak.
Diffstat (limited to 'lib/stdlib')
-rw-r--r--lib/stdlib/src/erl_tar.erl6
-rw-r--r--lib/stdlib/test/tar_SUITE.erl59
2 files changed, 47 insertions, 18 deletions
diff --git a/lib/stdlib/src/erl_tar.erl b/lib/stdlib/src/erl_tar.erl
index 086e77cd28..a54df939bf 100644
--- a/lib/stdlib/src/erl_tar.erl
+++ b/lib/stdlib/src/erl_tar.erl
@@ -1321,7 +1321,11 @@ foldl_read(TarName, Fun, Accu, #read_opts{}=Opts)
when is_function(Fun,4) ->
try open(TarName, [read|Opts#read_opts.open_mode]) of
{ok, #reader{access=read}=Reader} ->
- foldl_read(Reader, Fun, Accu, Opts);
+ try
+ foldl_read(Reader, Fun, Accu, Opts)
+ after
+ _ = close(Reader)
+ end;
{error, _} = Err ->
Err
catch
diff --git a/lib/stdlib/test/tar_SUITE.erl b/lib/stdlib/test/tar_SUITE.erl
index d6b6d3f80c..2e1ae7bcff 100644
--- a/lib/stdlib/test/tar_SUITE.erl
+++ b/lib/stdlib/test/tar_SUITE.erl
@@ -20,7 +20,9 @@
-module(tar_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
- init_per_group/2,end_per_group/2, borderline/1, atomic/1, long_names/1,
+ init_per_group/2, end_per_group/2,
+ init_per_testcase/2,
+ borderline/1, atomic/1, long_names/1,
create_long_names/1, bad_tar/1, errors/1, extract_from_binary/1,
extract_from_binary_compressed/1, extract_filtered/1,
extract_from_open_file/1, symlinks/1, open_add_close/1, cooked_compressed/1,
@@ -56,6 +58,9 @@ init_per_group(_GroupName, Config) ->
end_per_group(_GroupName, Config) ->
Config.
+init_per_testcase(_Case, Config) ->
+ Ports = ordsets:from_list(erlang:ports()),
+ [{ports,Ports}|Config].
%% Test creating, listing and extracting one file from an archive,
%% multiple times with different file sizes. Also check that the file
@@ -85,7 +90,7 @@ borderline(Config) when is_list(Config) ->
%% Clean up.
delete_files([TempDir]),
- ok.
+ verify_ports(Config).
borderline_test(Size, TempDir) ->
io:format("Testing size ~p", [Size]),
@@ -270,7 +275,7 @@ atomic(Config) when is_list(Config) ->
%% Clean up.
delete_files([Tar1,Tar2,Tar3,Tar4|Names]),
- ok.
+ verify_ports(Config).
%% Returns a sequence of characters.
@@ -304,7 +309,9 @@ long_names(Config) when is_list(Config) ->
DataDir = proplists:get_value(data_dir, Config),
Long = filename:join(DataDir, "long_names.tar"),
run_in_short_tempdir(Config,
- fun() -> do_long_names(Long) end).
+ fun() -> do_long_names(Long) end),
+ verify_ports(Config).
+
do_long_names(Long) ->
%% Try table/2 and extract/2.
@@ -336,7 +343,8 @@ do_long_names(Long) ->
%% Creates a tar file from a deep directory structure (filenames are
%% longer than 100 characters).
create_long_names(Config) when is_list(Config) ->
- run_in_short_tempdir(Config, fun create_long_names/0).
+ run_in_short_tempdir(Config, fun create_long_names/0),
+ verify_ports(Config).
create_long_names() ->
{ok,Dir} = file:get_cwd(),
@@ -383,7 +391,7 @@ bad_tar(Config) when is_list(Config) ->
try_bad("bad_octal", invalid_tar_checksum, Config),
try_bad("bad_too_short", eof, Config),
try_bad("bad_even_shorter", eof, Config),
- ok.
+ verify_ports(Config).
try_bad(Name0, Reason, Config) ->
%% Intentionally no macros here.
@@ -433,7 +441,7 @@ errors(Config) when is_list(Config) ->
%% Clean up.
delete_files([GoodTar,BadTar]),
- ok.
+ verify_ports(Config).
try_error(M, F, A, Error) ->
io:format("Trying ~p:~p(~p)", [M, F, A]),
@@ -483,7 +491,7 @@ extract_from_binary(Config) when is_list(Config) ->
%% Clean up.
delete_files([ExtractDir]),
- ok.
+ verify_ports(Config).
extract_from_binary_compressed(Config) when is_list(Config) ->
%% Test extracting a compressed tar archive from a binary.
@@ -516,7 +524,7 @@ extract_from_binary_compressed(Config) when is_list(Config) ->
%% Clean up the rest.
delete_files([ExtractDir]),
- ok.
+ verify_ports(Config).
%% Test extracting a tar archive from a binary.
extract_filtered(Config) when is_list(Config) ->
@@ -537,7 +545,7 @@ extract_filtered(Config) when is_list(Config) ->
%% Clean up.
delete_files([ExtractDir]),
- ok.
+ verify_ports(Config).
%% Test extracting a tar archive from an open file.
extract_from_open_file(Config) when is_list(Config) ->
@@ -562,7 +570,7 @@ extract_from_open_file(Config) when is_list(Config) ->
%% Clean up.
delete_files([ExtractDir]),
- ok.
+ verify_ports(Config).
%% Test that archives containing symlinks can be created and extracted.
symlinks(Config) when is_list(Config) ->
@@ -581,6 +589,7 @@ symlinks(Config) when is_list(Config) ->
%% Clean up.
delete_files([Dir]),
+ verify_ports(Config),
Res.
make_symlink(Path, Link) ->
@@ -697,7 +706,8 @@ init(Config) when is_list(Config) ->
ok = erl_tar:add(Tar, FileOne, []),
ok = erl_tar:close(Tar),
{ok, [FileOne]} = erl_tar:table(TarOne),
- ok.
+
+ verify_ports(Config).
file_op_bad(_) ->
throw({error, should_never_be_called}).
@@ -751,7 +761,7 @@ open_add_close(Config) when is_list(Config) ->
delete_files(["oac_file","oac_small","oac_big",Dir,AnotherDir,ADir]),
- ok.
+ verify_ports(Config).
oac_files() ->
Files = [{"oac_file", 1459, $x},
@@ -782,7 +792,8 @@ cooked_compressed(Config) when is_list(Config) ->
%% Clean up.
delete_files([filename:join(PrivDir, "ddll_SUITE_data")]),
- ok.
+
+ verify_ports(Config).
%% Test that an archive can be created directly from binaries and
%% that an archive can be extracted into binaries.
@@ -810,13 +821,15 @@ memory(Config) when is_list(Config) ->
%% Clean up.
ok = delete_files([Name1,Name2]),
- ok.
+
+ verify_ports(Config).
read_other_implementations(Config) when is_list(Config) ->
DataDir = proplists:get_value(data_dir, Config),
Files = ["v7.tar", "gnu.tar", "bsd.tar",
"star.tar", "pax_mtime.tar"],
- do_read_other_implementations(Files, DataDir).
+ do_read_other_implementations(Files, DataDir),
+ verify_ports(Config).
do_read_other_implementations([], _DataDir) ->
ok;
@@ -836,7 +849,8 @@ sparse(Config) when is_list(Config) ->
Sparse01 = "sparse01.tar",
Sparse10Empty = "sparse10_empty.tar",
Sparse10 = "sparse10.tar",
- do_sparse([Sparse01Empty, Sparse01, Sparse10Empty, Sparse10], DataDir, PrivDir).
+ do_sparse([Sparse01Empty, Sparse01, Sparse10Empty, Sparse10], DataDir, PrivDir),
+ verify_ports(Config).
do_sparse([], _DataDir, _PrivDir) ->
ok;
@@ -994,3 +1008,14 @@ is_ustar(File) ->
$g -> false;
_ -> true
end.
+
+
+verify_ports(Config) ->
+ PortsBefore = proplists:get_value(ports, Config),
+ PortsAfter = ordsets:from_list(erlang:ports()),
+ case ordsets:subtract(PortsAfter, PortsBefore) of
+ [] ->
+ ok;
+ [_|_]=Rem ->
+ error({leaked_ports,Rem})
+ end.