diff options
Diffstat (limited to 'lib/kernel/test/file_SUITE.erl')
| -rw-r--r-- | lib/kernel/test/file_SUITE.erl | 104 |
1 files changed, 101 insertions, 3 deletions
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl index 1d652679b0..17c47f871d 100644 --- a/lib/kernel/test/file_SUITE.erl +++ b/lib/kernel/test/file_SUITE.erl @@ -53,7 +53,7 @@ -export([file_info/1, file_info_basic_file/1, file_info_basic_directory/1, file_info_bad/1, file_info_times/1, file_write_file_info/1]). -export([rename/1, access/1, truncate/1, datasync/1, sync/1, - read_write/1, pread_write/1, append/1]). + read_write/1, pread_write/1, append/1, exclusive/1]). -export([errors/1, e_delete/1, e_rename/1, e_make_dir/1, e_del_dir/1]). -export([otp_5814/1]). @@ -84,6 +84,8 @@ -export([advise/1]). +-export([standard_io/1,mini_server/1]). + %% Debug exports -export([create_file_slow/2, create_file/2, create_bin/2]). -export([verify_file/2, verify_bin/3]). @@ -103,7 +105,8 @@ all(suite) -> compression, links, copy, delayed_write, read_ahead, segment_read, segment_write, ipread, pid2name, interleaved_read_write, - otp_5814, large_file, read_line_1, read_line_2, read_line_3, read_line_4], + otp_5814, large_file, read_line_1, read_line_2, read_line_3, read_line_4, + standard_io], fini}. init(Config) when is_list(Config) -> @@ -172,6 +175,85 @@ time_dist({_D1, _T1} = DT1, {_D2, _T2} = DT2) -> - calendar:datetime_to_gregorian_seconds(DT1). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +mini_server(Parent) -> + receive + die -> + ok; + {io_request,From,To,{put_chars,Data}} -> + Parent ! {io_request,From,To,{put_chars,Data}}, + From ! {io_reply, To, ok}, + mini_server(Parent); + {io_request,From,To,{get_chars,'',N}} -> + Parent ! {io_request,From,To,{get_chars,'',N}}, + From ! {io_reply, To, {ok, lists:duplicate(N,$a)}}, + mini_server(Parent); + {io_request,From,To,{get_line,''}} -> + Parent ! {io_request,From,To,{get_line,''}}, + From ! {io_reply, To, {ok, "hej\n"}}, + mini_server(Parent) + end. + +standard_io(suite) -> + []; +standard_io(doc) -> + ["Test that standard i/o-servers work with file module"]; +standard_io(Config) when is_list(Config) -> + %% Really just a smoke test + ?line Pid = spawn(?MODULE,mini_server,[self()]), + ?line register(mini_server,Pid), + ?line ok = file:write(mini_server,<<"hej\n">>), + ?line receive + {io_request,_,_,{put_chars,<<"hej\n">>}} -> + ok + after 1000 -> + exit(noreply) + end, + ?line {ok,"aaaaa"} = file:read(mini_server,5), + ?line receive + {io_request,_,_,{get_chars,'',5}} -> + ok + after 1000 -> + exit(noreply) + end, + ?line {ok,"hej\n"} = file:read_line(mini_server), + ?line receive + {io_request,_,_,{get_line,''}} -> + ok + after 1000 -> + exit(noreply) + end, + ?line OldGL = group_leader(), + ?line group_leader(Pid,self()), + ?line ok = file:write(standard_io,<<"hej\n">>), + ?line group_leader(OldGL,self()), + ?line receive + {io_request,_,_,{put_chars,<<"hej\n">>}} -> + ok + after 1000 -> + exit(noreply) + end, + ?line group_leader(Pid,self()), + ?line {ok,"aaaaa"} = file:read(standard_io,5), + ?line group_leader(OldGL,self()), + ?line receive + {io_request,_,_,{get_chars,'',5}} -> + ok + after 1000 -> + exit(noreply) + end, + ?line group_leader(Pid,self()), + ?line {ok,"hej\n"} = file:read_line(standard_io), + ?line group_leader(OldGL,self()), + ?line receive + {io_request,_,_,{get_line,''}} -> + ok + after 1000 -> + exit(noreply) + end, + Pid ! die, + receive after 1000 -> ok end. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% read_write_file(suite) -> []; read_write_file(doc) -> []; @@ -384,7 +466,7 @@ files(suite) -> sync,datasync,advise]. open(suite) -> [open1,old_modes,new_modes,path_open,close,access,read_write, - pread_write,append,open_errors]. + pread_write,append,open_errors,exclusive]. open1(suite) -> []; open1(doc) -> []; @@ -758,6 +840,22 @@ open_errors(Config) when is_list(Config) -> ?line test_server:timetrap_cancel(Dog), ok. +exclusive(suite) -> []; +exclusive(doc) -> "Test exclusive access to a file."; +exclusive(Config) when is_list(Config) -> + ?line Dog = test_server:timetrap(test_server:seconds(5)), + ?line RootDir = ?config(priv_dir,Config), + ?line NewDir = filename:join(RootDir, + atom_to_list(?MODULE) + ++"_exclusive"), + ?line ok = ?FILE_MODULE:make_dir(NewDir), + ?line Name = filename:join(NewDir, "ex_file.txt"), + ?line {ok, Fd} = ?FILE_MODULE:open(Name, [write, exclusive]), + ?line {error, eexist} = ?FILE_MODULE:open(Name, [write, exclusive]), + ?line ok = ?FILE_MODULE:close(Fd), + ?line test_server:timetrap_cancel(Dog), + ok. + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% pos(suite) -> [pos1,pos2]. |