diff options
Diffstat (limited to 'lib/kernel/test/file_SUITE.erl')
| -rw-r--r-- | lib/kernel/test/file_SUITE.erl | 402 |
1 files changed, 319 insertions, 83 deletions
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl index d01e1f1fcf..fdab2eb02b 100644 --- a/lib/kernel/test/file_SUITE.erl +++ b/lib/kernel/test/file_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2010. All Rights Reserved. +%% Copyright Ericsson AB 1996-2011. 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 @@ -40,29 +40,29 @@ -module(?FILE_SUITE). --export([all/1, - init/1, fini/1, - init_per_testcase/2, fin_per_testcase/2, - read_write_file/1, dirs/1, files/1, names/1]). +-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, + init_per_group/2,end_per_group/2, + init_per_testcase/2, end_per_testcase/2, + read_write_file/1, names/1]). -export([cur_dir_0/1, cur_dir_1/1, make_del_dir/1, - pos/1, pos1/1, pos2/1]). --export([close/1, consult/1, consult1/1, path_consult/1, delete/1]). --export([eval/1, eval1/1, path_eval/1, script/1, script1/1, path_script/1, - open/1, open1/1, + pos1/1, pos2/1]). +-export([close/1, consult1/1, path_consult/1, delete/1]). +-export([ eval1/1, path_eval/1, script1/1, path_script/1, + open1/1, old_modes/1, new_modes/1, path_open/1, open_errors/1]). --export([file_info/1, file_info_basic_file/1, file_info_basic_directory/1, +-export([ 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, sync/1, - read_write/1, pread_write/1, append/1]). --export([errors/1, e_delete/1, e_rename/1, e_make_dir/1, e_del_dir/1]). +-export([rename/1, access/1, truncate/1, datasync/1, sync/1, + read_write/1, pread_write/1, append/1, exclusive/1]). +-export([ e_delete/1, e_rename/1, e_make_dir/1, e_del_dir/1]). -export([otp_5814/1]). --export([compression/1, read_not_really_compressed/1, +-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]). --export([links/1, make_link/1, read_link_info_for_non_link/1, symlinks/1]). +-export([ make_link/1, read_link_info_for_non_link/1, symlinks/1]). -export([copy/1]). @@ -82,6 +82,10 @@ -export([read_line_1/1, read_line_2/1, read_line_3/1,read_line_4/1]). +-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]). @@ -89,22 +93,56 @@ --include("test_server.hrl"). +-include_lib("test_server/include/test_server.hrl"). -include_lib("kernel/include/file.hrl"). -all(suite) -> - {conf, init, - [altname, read_write_file, dirs, files, - delete, rename, names, errors, - 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], - fini}. - -init(Config) when is_list(Config) -> +suite() -> [{ct_hooks,[ts_install_cth]}]. + +all() -> + [altname, read_write_file, {group, dirs}, + {group, files}, delete, rename, names, {group, errors}, + {group, compression}, {group, 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, standard_io]. + +groups() -> + [{dirs, [], [make_del_dir, cur_dir_0, cur_dir_1]}, + {files, [], + [{group, open}, {group, pos}, {group, file_info}, + {group, consult}, {group, eval}, {group, script}, + truncate, sync, datasync, advise]}, + {open, [], + [open1, old_modes, new_modes, path_open, close, access, + read_write, pread_write, append, open_errors, + exclusive]}, + {pos, [], [pos1, pos2]}, + {file_info, [], + [file_info_basic_file, file_info_basic_directory, + file_info_bad, file_info_times, file_write_file_info]}, + {consult, [], [consult1, path_consult]}, + {eval, [], [eval1, path_eval]}, + {script, [], [script1, path_script]}, + {errors, [], + [e_delete, e_rename, e_make_dir, e_del_dir]}, + {compression, [], + [read_compressed_cooked, read_compressed_cooked_binary, + read_cooked_tar_problem, read_not_really_compressed, + write_compressed, compress_errors, catenated_gzips]}, + {links, [], + [make_link, read_link_info_for_non_link, symlinks]}]. + +init_per_group(_GroupName, Config) -> + Config. + +end_per_group(_GroupName, Config) -> + Config. + + +init_per_suite(Config) when is_list(Config) -> case os:type() of {win32, _} -> Priv = ?config(priv_dir, Config), @@ -121,7 +159,7 @@ init(Config) when is_list(Config) -> ?FILE_INIT(Config) end. -fini(Config) when is_list(Config) -> +end_per_suite(Config) when is_list(Config) -> case os:type() of {win32, _} -> os:cmd("subst z: /d"); @@ -134,7 +172,7 @@ init_per_testcase(_Func, Config) -> %%error_logger:info_msg("~p:~p *****~n", [?MODULE, _Func]), ?FILE_INIT_PER_TESTCASE(Config). -fin_per_testcase(_Func, Config) -> +end_per_testcase(_Func, Config) -> %% error_logger:info_msg("~p:~p END *****~n", [?MODULE, _Func]), ?FILE_FIN_PER_TESTCASE(Config). @@ -170,6 +208,85 @@ 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) -> []; @@ -230,7 +347,6 @@ read_write_file(Config) when is_list(Config) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -dirs(suite) -> [make_del_dir, cur_dir_0, cur_dir_1]. make_del_dir(suite) -> []; make_del_dir(doc) -> []; @@ -244,38 +360,50 @@ make_del_dir(Config) when is_list(Config) -> ?line {error, eexist} = ?FILE_MODULE:make_dir(NewDir), ?line ok = ?FILE_MODULE:del_dir(NewDir), ?line {error, enoent} = ?FILE_MODULE:del_dir(NewDir), - - %% Check that we get an error when trying to create... - %% a deep directory - ?line NewDir2 = filename:join(RootDir, - atom_to_list(?MODULE) - ++"_mk-dir/foo"), - ?line {error, enoent} = ?FILE_MODULE:make_dir(NewDir2), - %% a nameless directory - ?line {error, enoent} = ?FILE_MODULE:make_dir(""), - %% a directory with illegal name - ?line {error, badarg} = ?FILE_MODULE:make_dir({1,2,3}), - - %% a directory with illegal name, even if it's a (bad) list - ?line {error, badarg} = ?FILE_MODULE:make_dir([1,2,3,{}]), - - %% Maybe this isn't an error, exactly, but worth mentioning anyway: - %% ok = ?FILE_MODULE:make_dir([$f,$o,$o,0,$b,$a,$r])), - %% The above line works, and created a directory "./foo" - %% More elegant would maybe have been to fail, or to really create - %% a directory, but with a name that incorporates the "bar" part of - %% the list, so that [$f,$o,$o,0,$f,$o,$o] wouldn't refer to the same - %% dir. But this would slow it down. - - %% Try deleting some bad directories - %% Deleting the parent directory to the current, sounds dangerous, huh? - %% Don't worry ;-) the parent directory should never be empty, right? - ?line {error, eexist} = ?FILE_MODULE:del_dir('..'), - ?line {error, enoent} = ?FILE_MODULE:del_dir(""), - ?line {error, badarg} = ?FILE_MODULE:del_dir([3,2,1,{}]), - - ?line [] = flush(), - ?line test_server:timetrap_cancel(Dog), + % Make sure we are not in a directory directly under test_server + % as that would result in eacess errors when trying to delere '..', + % because there are processes having that directory as current. + ?line ok = ?FILE_MODULE:make_dir(NewDir), + ?line {ok,CurrentDir} = file:get_cwd(), + ?line ok = ?FILE_MODULE:set_cwd(NewDir), + try + %% Check that we get an error when trying to create... + %% a deep directory + ?line NewDir2 = filename:join(RootDir, + atom_to_list(?MODULE) + ++"_mk-dir-noexist/foo"), + ?line {error, enoent} = ?FILE_MODULE:make_dir(NewDir2), + %% a nameless directory + ?line {error, enoent} = ?FILE_MODULE:make_dir(""), + %% a directory with illegal name + ?line {error, badarg} = ?FILE_MODULE:make_dir({1,2,3}), + + %% a directory with illegal name, even if it's a (bad) list + ?line {error, badarg} = ?FILE_MODULE:make_dir([1,2,3,{}]), + + %% Maybe this isn't an error, exactly, but worth mentioning anyway: + %% ok = ?FILE_MODULE:make_dir([$f,$o,$o,0,$b,$a,$r])), + %% The above line works, and created a directory "./foo" + %% More elegant would maybe have been to fail, or to really create + %% a directory, but with a name that incorporates the "bar" part of + %% the list, so that [$f,$o,$o,0,$f,$o,$o] wouldn't refer to the same + %% dir. But this would slow it down. + + %% Try deleting some bad directories + %% Deleting the parent directory to the current, sounds dangerous, huh? + %% Don't worry ;-) the parent directory should never be empty, right? + ?line case ?FILE_MODULE:del_dir('..') of + {error, eexist} -> ok; + {error, einval} -> ok %FreeBSD + end, + ?line {error, enoent} = ?FILE_MODULE:del_dir(""), + ?line {error, badarg} = ?FILE_MODULE:del_dir([3,2,1,{}]), + + ?line [] = flush(), + ?line test_server:timetrap_cancel(Dog) + after + ?FILE_MODULE:set_cwd(CurrentDir) + end, ok. cur_dir_0(suite) -> []; @@ -374,10 +502,7 @@ win_cur_dir_1(_Config) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -files(suite) -> [open,pos,file_info,consult,eval,script,truncate,sync]. -open(suite) -> [open1,old_modes,new_modes,path_open,close,access,read_write, - pread_write,append,open_errors]. open1(suite) -> []; open1(doc) -> []; @@ -751,9 +876,24 @@ 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]. pos1(suite) -> []; pos1(doc) -> []; @@ -845,8 +985,6 @@ pos2(Config) when is_list(Config) -> ?line test_server:timetrap_cancel(Dog), ok. -file_info(suite) -> [file_info_basic_file, file_info_basic_directory, - file_info_bad, file_info_times, file_write_file_info]. file_info_basic_file(suite) -> []; file_info_basic_file(doc) -> []; @@ -1112,7 +1250,6 @@ file_write_file_info(Config) when is_list(Config) -> get_good_directory(Config) -> ?line ?config(priv_dir, Config). -consult(suite) -> [consult1, path_consult]. consult1(suite) -> []; consult1(doc) -> []; @@ -1173,7 +1310,6 @@ path_consult(Config) when is_list(Config) -> ?line test_server:timetrap_cancel(Dog), ok. -eval(suite) -> [eval1,path_eval]. eval1(suite) -> []; eval1(doc) -> []; @@ -1246,7 +1382,6 @@ path_eval(Config) when is_list(Config) -> ?line test_server:timetrap_cancel(Dog), ok. -script(suite) -> [script1,path_script]. script1(suite) -> []; script1(doc) -> ""; @@ -1352,6 +1487,30 @@ truncate(Config) when is_list(Config) -> ok. +datasync(suite) -> []; +datasync(doc) -> "Tests that ?FILE_MODULE:datasync/1 at least doesn't crash."; +datasync(Config) when is_list(Config) -> + ?line Dog = test_server:timetrap(test_server:seconds(5)), + ?line PrivDir = ?config(priv_dir, Config), + ?line Sync = filename:join(PrivDir, + atom_to_list(?MODULE) + ++"_sync.fil"), + + %% Raw open. + ?line {ok, Fd} = ?FILE_MODULE:open(Sync, [write, raw]), + ?line ok = ?FILE_MODULE:datasync(Fd), + ?line ok = ?FILE_MODULE:close(Fd), + + %% Ordinary open. + ?line {ok, Fd2} = ?FILE_MODULE:open(Sync, [write]), + ?line ok = ?FILE_MODULE:datasync(Fd2), + ?line ok = ?FILE_MODULE:close(Fd2), + + ?line [] = flush(), + ?line test_server:timetrap_cancel(Dog), + ok. + + sync(suite) -> []; sync(doc) -> "Tests that ?FILE_MODULE:sync/1 at least doesn't crash."; sync(Config) when is_list(Config) -> @@ -1375,6 +1534,77 @@ sync(Config) when is_list(Config) -> ?line test_server:timetrap_cancel(Dog), ok. +advise(suite) -> []; +advise(doc) -> "Tests that ?FILE_MODULE:advise/4 at least doesn't crash."; +advise(Config) when is_list(Config) -> + ?line Dog = test_server:timetrap(test_server:seconds(5)), + ?line PrivDir = ?config(priv_dir, Config), + ?line Advise = filename:join(PrivDir, + atom_to_list(?MODULE) + ++"_advise.fil"), + + Line1 = "Hello\n", + Line2 = "World!\n", + + ?line {ok, Fd} = ?FILE_MODULE:open(Advise, [write]), + ?line ok = ?FILE_MODULE:advise(Fd, 0, 0, normal), + ?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(Advise, [write]), + ?line ok = ?FILE_MODULE:advise(Fd2, 0, 0, random), + ?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(Advise, [write]), + ?line ok = ?FILE_MODULE:advise(Fd3, 0, 0, sequential), + ?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(Advise, [write]), + ?line ok = ?FILE_MODULE:advise(Fd4, 0, 0, will_need), + ?line ok = io:format(Fd4, "~s", [Line1]), + ?line ok = io:format(Fd4, "~s", [Line2]), + ?line ok = ?FILE_MODULE:close(Fd4), + + ?line {ok, Fd5} = ?FILE_MODULE:open(Advise, [write]), + ?line ok = ?FILE_MODULE:advise(Fd5, 0, 0, dont_need), + ?line ok = io:format(Fd5, "~s", [Line1]), + ?line ok = io:format(Fd5, "~s", [Line2]), + ?line ok = ?FILE_MODULE:close(Fd5), + + ?line {ok, Fd6} = ?FILE_MODULE:open(Advise, [write]), + ?line ok = ?FILE_MODULE:advise(Fd6, 0, 0, no_reuse), + ?line ok = io:format(Fd6, "~s", [Line1]), + ?line ok = io:format(Fd6, "~s", [Line2]), + ?line ok = ?FILE_MODULE:close(Fd6), + + ?line {ok, Fd7} = ?FILE_MODULE:open(Advise, [write]), + ?line {error, einval} = ?FILE_MODULE:advise(Fd7, 0, 0, bad_advise), + ?line ok = ?FILE_MODULE:close(Fd7), + + %% test write without advise, then a read after an advise + ?line {ok, Fd8} = ?FILE_MODULE:open(Advise, [write]), + ?line ok = io:format(Fd8, "~s", [Line1]), + ?line ok = io:format(Fd8, "~s", [Line2]), + ?line ok = ?FILE_MODULE:close(Fd8), + ?line {ok, Fd9} = ?FILE_MODULE:open(Advise, [read]), + Offset = 0, + %% same as a 0 length in some implementations + Length = length(Line1) + length(Line2), + ?line ok = ?FILE_MODULE:advise(Fd9, Offset, Length, sequential), + ?line {ok, Line1} = ?FILE_MODULE:read_line(Fd9), + ?line {ok, Line2} = ?FILE_MODULE:read_line(Fd9), + ?line eof = ?FILE_MODULE:read_line(Fd9), + ?line ok = ?FILE_MODULE:close(Fd9), + + ?line [] = flush(), + ?line test_server:timetrap_cancel(Dog), + ok. + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -1502,7 +1732,6 @@ names(Config) when is_list(Config) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -errors(suite) -> [e_delete, e_rename, e_make_dir, e_del_dir]. e_delete(suite) -> []; e_delete(doc) -> []; @@ -1759,12 +1988,6 @@ e_del_dir(Config) when is_list(Config) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -compression(suite) -> - [read_compressed_cooked, read_compressed_cooked_binary, - read_cooked_tar_problem, - read_not_really_compressed, - write_compressed, compress_errors, - catenated_gzips]. %% Trying reading and positioning from a compressed file. @@ -1841,6 +2064,10 @@ try_read_file_list(Fd) -> ?line Title = "Real Programmers Don't Use PASCAL</TITLE>\n", ?line Title = io:get_line(Fd, ''), + %% Seek past the end of the file. + + ?line {ok, _} = ?FILE_MODULE:position(Fd, 25000), + %% Done. ?line ?FILE_MODULE:close(Fd), @@ -2058,8 +2285,6 @@ altname(Config) when is_list(Config) -> ?line test_server:timetrap_cancel(Dog), Result. -links(doc) -> "Test the link functions."; -links(suite) -> [make_link, read_link_info_for_non_link, symlinks]. make_link(doc) -> "Test creating a hard link."; make_link(suite) -> []; @@ -3068,7 +3293,7 @@ large_file(Config) when is_list(Config) -> {{unix,sunos},{A,B,C}} when A == 5, B == 5, C >= 1; A == 5, B >= 6; A >= 6 -> do_large_file(Config); - {{unix,Unix},_} when Unix =:= linux; Unix =:= darwin -> + {{unix,Unix},_} when Unix =/= sunos -> N = unix_free(Config), io:format("Free: ~w KByte~n", [N]), if N < 5 * (1 bsl 20) -> @@ -3078,7 +3303,7 @@ large_file(Config) when is_list(Config) -> do_large_file(Config) end; _ -> - {skipped,"Only supported on Win32, Linux, or SunOS >= 5.5.1"} + {skipped,"Only supported on Win32, Unix or SunOS >= 5.5.1"} end. unix_free(Config) -> @@ -3090,7 +3315,7 @@ unix_free(Config) -> N. do_large_file(Config) -> - ?line Watchdog = ?t:timetrap(?t:minutes(4)), + ?line Watchdog = ?t:timetrap(?t:minutes(5)), %% ?line Name = filename:join(?config(priv_dir, Config), ?MODULE_STRING ++ "_large_file"), @@ -3129,6 +3354,17 @@ do_large_file(Config) -> ?line {ok,P} = ?FILE_MODULE:position(F, {eof,-L}), ?line {ok,Rs} = ?FILE_MODULE:read(F, L+1), ?line ok = ?FILE_MODULE:close(F), + %% Reopen the file with 'append'; used to fail on Windows causing + %% writes to go to the beginning of the file for files > 4GB. + ?line PL = P + L, + ?line PLL = PL + L, + ?line {ok,F1} = ?FILE_MODULE:open(Name, [raw,read,write,append]), + ?line ok = ?FILE_MODULE:write(F1, R), + ?line {ok,PLL} = ?FILE_MODULE:position(F1, {cur,0}), + ?line {ok,Rs} = ?FILE_MODULE:pread(F1, P, L), + ?line {ok,PL} = ?FILE_MODULE:position(F1, {eof,-L}), + ?line {ok,R} = ?FILE_MODULE:read(F1, L+1), + ?line ok = ?FILE_MODULE:close(F1), %% ?line Mref = erlang:monitor(process, Deleter), ?line Deleter ! {Tester,done}, |