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-rw-r--r--lib/kernel/test/file_SUITE.erl133
1 files changed, 128 insertions, 5 deletions
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl
index 9c507fd437..ac991b1111 100644
--- a/lib/kernel/test/file_SUITE.erl
+++ b/lib/kernel/test/file_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. 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
@@ -60,7 +60,8 @@
-export([ read_not_really_compressed/1,
read_compressed_cooked/1, read_compressed_cooked_binary/1,
read_cooked_tar_problem/1,
- write_compressed/1, compress_errors/1, catenated_gzips/1]).
+ write_compressed/1, compress_errors/1, catenated_gzips/1,
+ compress_async_crash/1]).
-export([ make_link/1, read_link_info_for_non_link/1, symlinks/1]).
@@ -84,6 +85,8 @@
-export([advise/1]).
+-export([allocate/1]).
+
-export([standard_io/1,mini_server/1]).
%% Debug exports
@@ -116,7 +119,7 @@ groups() ->
{files, [],
[{group, open}, {group, pos}, {group, file_info},
{group, consult}, {group, eval}, {group, script},
- truncate, sync, datasync, advise]},
+ truncate, sync, datasync, advise, allocate]},
{open, [],
[open1, old_modes, new_modes, path_open, close, access,
read_write, pread_write, append, open_errors,
@@ -133,7 +136,8 @@ groups() ->
{compression, [],
[read_compressed_cooked, read_compressed_cooked_binary,
read_cooked_tar_problem, read_not_really_compressed,
- write_compressed, compress_errors, catenated_gzips]},
+ write_compressed, compress_errors, catenated_gzips,
+ compress_async_crash]},
{links, [],
[make_link, read_link_info_for_non_link, symlinks]}].
@@ -228,7 +232,7 @@ mini_server(Parent) ->
receive
die ->
ok;
- {io_request,From,To,{put_chars,Data}} ->
+ {io_request,From,To,{put_chars,_Encoding,Data}} ->
Parent ! {io_request,From,To,{put_chars,Data}},
From ! {io_reply, To, ok},
mini_server(Parent);
@@ -1617,6 +1621,74 @@ advise(Config) when is_list(Config) ->
?line test_server:timetrap_cancel(Dog),
ok.
+allocate(suite) -> [];
+allocate(doc) -> "Tests that ?FILE_MODULE:allocate/3 at least doesn't crash.";
+allocate(Config) when is_list(Config) ->
+ ?line Dog = test_server:timetrap(test_server:seconds(5)),
+ ?line PrivDir = ?config(priv_dir, Config),
+ ?line Allocate = filename:join(PrivDir,
+ atom_to_list(?MODULE)
+ ++"_allocate.fil"),
+
+ Line1 = "Hello\n",
+ Line2 = "World!\n",
+
+ ?line {ok, Fd} = ?FILE_MODULE:open(Allocate, [write, binary]),
+ allocate_and_assert(Fd, 1, iolist_size([Line1, Line2])),
+ ?line ok = io:format(Fd, "~s", [Line1]),
+ ?line ok = io:format(Fd, "~s", [Line2]),
+ ?line ok = ?FILE_MODULE:close(Fd),
+
+ ?line {ok, Fd2} = ?FILE_MODULE:open(Allocate, [write, binary]),
+ allocate_and_assert(Fd2, 1, iolist_size(Line1)),
+ ?line ok = io:format(Fd2, "~s", [Line1]),
+ ?line ok = io:format(Fd2, "~s", [Line2]),
+ ?line ok = ?FILE_MODULE:close(Fd2),
+
+ ?line {ok, Fd3} = ?FILE_MODULE:open(Allocate, [write, binary]),
+ allocate_and_assert(Fd3, 1, iolist_size(Line1) + 1),
+ ?line ok = io:format(Fd3, "~s", [Line1]),
+ ?line ok = io:format(Fd3, "~s", [Line2]),
+ ?line ok = ?FILE_MODULE:close(Fd3),
+
+ ?line {ok, Fd4} = ?FILE_MODULE:open(Allocate, [write, binary]),
+ allocate_and_assert(Fd4, 1, 4 * iolist_size([Line1, Line2])),
+ ?line ok = io:format(Fd4, "~s", [Line1]),
+ ?line ok = io:format(Fd4, "~s", [Line2]),
+ ?line ok = ?FILE_MODULE:close(Fd4),
+
+ ?line [] = flush(),
+ ?line test_server:timetrap_cancel(Dog),
+ ok.
+
+allocate_and_assert(Fd, Offset, Length) ->
+ % Just verify that calls to ?PRIM_FILE:allocate/3 don't crash or have
+ % any other negative side effect. We can't really asssert against a
+ % specific return value, because support for file space pre-allocation
+ % depends on the OS, OS version and underlying filesystem.
+ %
+ % The Linux kernel added support for fallocate() in version 2.6.23,
+ % which currently works only for the ext4, ocfs2, xfs and btrfs file
+ % systems. posix_fallocate() is available in glibc as of version
+ % 2.1.94, but it was buggy until glibc version 2.7.
+ %
+ % Mac OS X, as of version 10.3, supports the fcntl operation F_PREALLOCATE.
+ %
+ % Solaris supports posix_fallocate() but only for the UFS file system
+ % apparently (not supported for ZFS).
+ %
+ % FreeBSD 9.0 is the first FreeBSD release supporting posix_fallocate().
+ %
+ % For Windows there's apparently no way to pre-allocate file space, at
+ % least with same semantics as posix_fallocate(), fallocate() and
+ % fcntl F_PREALLOCATE.
+ Result = ?FILE_MODULE:allocate(Fd, Offset, Length),
+ case os:type() of
+ {win32, _} ->
+ ?line {error, enotsup} = Result;
+ _ ->
+ ?line _ = Result
+ end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -2242,6 +2314,57 @@ compress_errors(Config) when is_list(Config) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+compress_async_crash(suite) -> [];
+compress_async_crash(doc) -> [];
+compress_async_crash(Config) when is_list(Config) ->
+ ?line DataDir = ?config(data_dir, Config),
+ ?line Path = filename:join(DataDir, "test.gz"),
+ ExpectedData = <<"qwerty">>,
+
+ ?line _ = ?FILE_MODULE:delete(Path),
+ ?line {ok, Fd} = ?FILE_MODULE:open(Path, [write, binary, compressed]),
+ ?line ok = ?FILE_MODULE:write(Fd, ExpectedData),
+ ?line ok = ?FILE_MODULE:close(Fd),
+
+ % Test that when using async thread pool, the emulator doesn't crash
+ % when the efile port driver is stopped while a compressed file operation
+ % is in progress (being carried by an async thread).
+ ?line ok = compress_async_crash_loop(10000, Path, ExpectedData),
+ ?line ok = ?FILE_MODULE:delete(Path),
+ ok.
+
+compress_async_crash_loop(0, _Path, _ExpectedData) ->
+ ok;
+compress_async_crash_loop(N, Path, ExpectedData) ->
+ Parent = self(),
+ {Pid, Ref} = spawn_monitor(
+ fun() ->
+ ?line {ok, Fd} = ?FILE_MODULE:open(
+ Path, [read, compressed, raw, binary]),
+ Len = byte_size(ExpectedData),
+ Parent ! {self(), continue},
+ ?line {ok, ExpectedData} = ?FILE_MODULE:read(Fd, Len),
+ ?line ok = ?FILE_MODULE:close(Fd),
+ receive foobar -> ok end
+ end),
+ receive
+ {Pid, continue} ->
+ exit(Pid, shutdown),
+ receive
+ {'DOWN', Ref, _, _, Reason} ->
+ ?line shutdown = Reason
+ end;
+ {'DOWN', Ref, _, _, Reason2} ->
+ test_server:fail({worker_exited, Reason2})
+ after 60000 ->
+ exit(Pid, shutdown),
+ erlang:demonitor(Ref, [flush]),
+ test_server:fail(worker_timeout)
+ end,
+ compress_async_crash_loop(N - 1, Path, ExpectedData).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
altname(doc) ->
"Test the file:altname/1 function";
altname(suite) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 20:31:34 +0000