diff options
Diffstat (limited to 'lib/kernel')
| -rw-r--r-- | lib/kernel/src/file_io_server.erl | 46 | ||||
| -rw-r--r-- | lib/kernel/test/file_SUITE.erl | 37 |
2 files changed, 75 insertions, 8 deletions
diff --git a/lib/kernel/src/file_io_server.erl b/lib/kernel/src/file_io_server.erl index 5b2cae6b02..9c425d2175 100644 --- a/lib/kernel/src/file_io_server.erl +++ b/lib/kernel/src/file_io_server.erl @@ -214,26 +214,58 @@ file_request({allocate, Offset, Length}, #state{handle = Handle} = State) -> Reply = ?PRIM_FILE:allocate(Handle, Offset, Length), {reply, Reply, State}; +file_request({pread,At,Sz}, State) + when At =:= cur; + At =:= {cur,0} -> + case get_chars(Sz, latin1, State) of + {reply,Reply,NewState} + when is_list(Reply); + is_binary(Reply) -> + {reply,{ok,Reply},NewState}; + {stop,_,Reply,NewState} -> + {error,Reply,NewState}; + Other -> + Other + end; file_request({pread,At,Sz}, - #state{handle=Handle,buf=Buf,read_mode=ReadMode}=State) -> + #state{handle=Handle,buf=Buf}=State) -> case position(Handle, At, Buf) of {error,_} = Reply -> {error,Reply,State}; _ -> - case ?PRIM_FILE:read(Handle, Sz) of - {ok,Bin} when ReadMode =:= list -> - std_reply({ok,binary_to_list(Bin)}, State); - Reply -> - std_reply(Reply, State) + case get_chars(Sz, latin1, State#state{buf= <<>>}) of + {reply,Reply,NewState} + when is_list(Reply); + is_binary(Reply) -> + {reply,{ok,Reply},NewState}; + {stop,_,Reply,NewState} -> + {error,Reply,NewState}; + Other -> + Other end end; +file_request({pwrite,At,Data}, + #state{buf= <<>>}=State) + when At =:= cur; + At =:= {cur,0} -> + case put_chars(Data, latin1, State) of + {stop,_,Reply,NewState} -> + {error,Reply,NewState}; + Other -> + Other + end; file_request({pwrite,At,Data}, #state{handle=Handle,buf=Buf}=State) -> case position(Handle, At, Buf) of {error,_} = Reply -> {error,Reply,State}; _ -> - std_reply(?PRIM_FILE:write(Handle, Data), State) + case put_chars(Data, latin1, State) of + {stop,_,Reply,NewState} -> + {error,Reply,NewState}; + Other -> + Other + end end; file_request(datasync, #state{handle=Handle}=State) -> diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl index e9300bf019..87d2de4cae 100644 --- a/lib/kernel/test/file_SUITE.erl +++ b/lib/kernel/test/file_SUITE.erl @@ -79,6 +79,7 @@ -export([interleaved_read_write/1]). +-export([unicode/1]). -export([altname/1]). -export([large_file/1, large_write/1]). @@ -110,7 +111,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [altname, read_write_file, {group, dirs}, + [unicode, 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, @@ -2631,6 +2632,40 @@ compress_async_crash_loop(N, Path, ExpectedData) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +unicode(Config) when is_list(Config) -> + Dir = ?config(priv_dir, Config), + Name = filename:join(Dir, "data-utf8.txt"), + Txt = lists:seq(128, 255), + D = unicode:characters_to_binary(Txt, latin1, latin1), + {ok,Fd1} = + ?FILE_MODULE:open(Name, [write,read,binary,{encoding,unicode}]), + ok = ?FILE_MODULE:truncate(Fd1), + ok = ?FILE_MODULE:write(Fd1, Txt), + {ok,0} = ?FILE_MODULE:position(Fd1, bof), + {ok,D} = ?FILE_MODULE:read(Fd1, 129), + {ok,0} = ?FILE_MODULE:position(Fd1, bof), + {ok,D1} = ?FILE_MODULE:read(Fd1, 64), + {ok,Pos} = ?FILE_MODULE:position(Fd1, cur), + {ok,D2} = ?FILE_MODULE:pread(Fd1, {cur,0}, 65), + D = <<D1/binary, D2/binary>>, + {ok,D1} = ?FILE_MODULE:pread(Fd1, bof, 64), + {ok,Pos} = ?FILE_MODULE:position(Fd1, Pos), + {ok,D2} = ?FILE_MODULE:read(Fd1, 64), + ok = ?FILE_MODULE:close(Fd1), + %% + RawD = unicode:characters_to_binary(Txt, latin1, unicode), + {ok,RawD} = ?FILE_MODULE:read_file(Name), + %% + {ok,Fd2} = ?FILE_MODULE:open(Name, [read,{encoding,unicode}]), + {ok,Txt} = ?FILE_MODULE:read(Fd2, 129), + {Txt1,Txt2} = lists:split(64, Txt), + {ok,Txt2} = ?FILE_MODULE:pread(Fd2, Pos, 65), + {ok,0} = ?FILE_MODULE:position(Fd2, bof), + {ok,Txt1} = ?FILE_MODULE:read(Fd2, 64), + ok = ?FILE_MODULE:close(Fd2). + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + altname(doc) -> "Test the file:altname/1 function"; altname(suite) -> |