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-rw-r--r--lib/kernel/test/file_SUITE.erl17
1 files changed, 14 insertions, 3 deletions
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl
index 17c47f871d..47592ddb14 100644
--- a/lib/kernel/test/file_SUITE.erl
+++ b/lib/kernel/test/file_SUITE.erl
@@ -3268,7 +3268,7 @@ 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) ->
@@ -3278,7 +3278,7 @@ 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) ->
@@ -3290,7 +3290,7 @@ 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"),
@@ -3329,6 +3329,17 @@ 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},