diff options
| -rw-r--r-- | lib/kernel/test/file_SUITE.erl | 115 |
1 files changed, 67 insertions, 48 deletions
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl index 70c1569543..3c97ecde80 100644 --- a/lib/kernel/test/file_SUITE.erl +++ b/lib/kernel/test/file_SUITE.erl @@ -3287,52 +3287,13 @@ large_file(suite) -> large_file(doc) -> ["Tests positioning in large files (> 4G)"]; large_file(Config) when is_list(Config) -> - case {os:type(),os:version()} of - {{win32,nt},_} -> - do_large_file(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 =/= sunos -> - N = unix_free(Config), - io:format("Free: ~w KByte~n", [N]), - if N < 5 * (1 bsl 20) -> - %% Less than 5 GByte free - {skipped,"Less than 5 GByte free"}; - true -> - do_large_file(Config) - end; - _ -> - {skipped,"Only supported on Win32, Unix or SunOS >= 5.5.1"} - end. - -unix_free(Config) -> - Cmd = ["df -k '",?config(priv_dir, Config),"'"], - DF0 = os:cmd(Cmd), - io:format("$ ~s~n~s", [Cmd,DF0]), - Lines = re:split(DF0, "\n", [trim,{return,list}]), - Last = lists:last(Lines), - RE = "^[^\\s]*\\s+\\d+\\s+\\d+\\s+(\\d+)", - {match,[Avail]} = re:run(Last, RE, [{capture,all_but_first,list}]), - list_to_integer(Avail). + run_large_file_test(Config, + fun(Name) -> do_large_file(Name) end, + "_large_file"). -do_large_file(Config) -> +do_large_file(Name) -> ?line Watchdog = ?t:timetrap(?t:minutes(5)), - %% - ?line Name = filename:join(?config(priv_dir, Config), - ?MODULE_STRING ++ "_large_file"), - ?line Tester = self(), - Deleter = - spawn( - fun() -> - Mref = erlang:monitor(process, Tester), - receive - {'DOWN',Mref,_,_,_} -> ok; - {Tester,done} -> ok - end, - ?FILE_MODULE:delete(Name) - end), - %% + ?line S = "1234567890", L = length(S), R = lists:reverse(S), @@ -3368,10 +3329,6 @@ do_large_file(Config) -> ?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}, - ?line receive {'DOWN',Mref,_,_,_} -> ok end, - %% ?line ?t:timetrap_cancel(Watchdog), ok. @@ -3952,3 +3909,65 @@ flush(Msgs) -> after 0 -> lists:reverse(Msgs) end. + +%%% +%%% Support for testing large files. +%%% + +run_large_file_test(Config, Run, Name) -> + case {os:type(),os:version()} of + {{win32,nt},_} -> + do_run_large_file_test(Config, Run, Name); + {{unix,sunos},{A,B,C}} + when A == 5, B == 5, C >= 1; A == 5, B >= 6; A >= 6 -> + do_run_large_file_test(Config, Run, Name); + {{unix,Unix},_} when Unix =/= sunos -> + N = unix_free(Config), + io:format("Free: ~w KByte~n", [N]), + if N < 5 * (1 bsl 20) -> + %% Less than 5 GByte free + {skip,"Less than 5 GByte free"}; + true -> + do_run_large_file_test(Config, Run, Name) + end; + _ -> + {skip,"Only supported on Win32, Unix or SunOS >= 5.5.1"} + end. + + +do_run_large_file_test(Config, Run, Name0) -> + Name = filename:join(?config(priv_dir, Config), + ?MODULE_STRING ++ Name0), + + %% Set up a process that will delete this file. + Tester = self(), + Deleter = + spawn( + fun() -> + Mref = erlang:monitor(process, Tester), + receive + {'DOWN',Mref,_,_,_} -> ok; + {Tester,done} -> ok + end, + ?FILE_MODULE:delete(Name) + end), + + %% Run the test case. + Res = Run(Name), + + %% Delete file and finish deleter process. + Mref = erlang:monitor(process, Deleter), + Deleter ! {Tester,done}, + receive {'DOWN',Mref,_,_,_} -> ok end, + + Res. + +unix_free(Path) -> + Cmd = ["df -k '",Path,"'"], + DF0 = os:cmd(Cmd), + io:format("$ ~s~n~s", [Cmd,DF0]), + Lines = re:split(DF0, "\n", [trim,{return,list}]), + Last = lists:last(Lines), + RE = "^[^\\s]*\\s+\\d+\\s+\\d+\\s+(\\d+)", + {match,[Avail]} = re:run(Last, RE, [{capture,all_but_first,list}]), + list_to_integer(Avail). |