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-rw-r--r--erts/preloaded/src/erlang.erl46
-rw-r--r--erts/preloaded/src/prim_file.erl58
2 files changed, 87 insertions, 17 deletions
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index 274764ac74..f0264ba658 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -128,6 +128,8 @@
term_to_binary/1, term_to_binary/2, tl/1, trace_pattern/2,
trace_pattern/3, tuple_to_list/1, system_info/1,
universaltime_to_localtime/1]).
+-export([dt_get_tag/0, dt_get_tag_data/0, dt_prepend_vm_tag_data/1, dt_append_vm_tag_data/1,
+ dt_put_tag/1, dt_restore_tag/1, dt_spread_tag/1]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -572,6 +574,48 @@ display_string(_P1) ->
dist_exit(_P1, _P2, _P3) ->
erlang:nif_error(undefined).
+%% dt_append_vm_tag_data/1
+-spec dt_append_vm_tag_data(IoData) -> IoDataRet when
+ IoData :: iodata(),
+ IoDataRet :: iodata().
+dt_append_vm_tag_data(_IoData) ->
+ erlang:nif_error(undefined).
+
+%% dt_get_tag/0
+-spec erlang:dt_get_tag() -> binary() | undefined.
+dt_get_tag() ->
+ erlang:nif_error(undefined).
+
+%% dt_get_tag_data/0
+-spec erlang:dt_get_tag_data() -> binary() | undefined.
+dt_get_tag_data() ->
+ erlang:nif_error(undefined).
+
+%% dt_prepend_vm_tag_data/1
+-spec dt_prepend_vm_tag_data(IoData) -> IoDataRet when
+ IoData :: iodata(),
+ IoDataRet :: iodata().
+dt_prepend_vm_tag_data(_IoData) ->
+ erlang:nif_error(undefined).
+
+%% dt_put_tag/1
+-spec erlang:dt_put_tag(IoData) -> binary() | undefined when
+ IoData :: iodata().
+dt_put_tag(_IoData) ->
+ erlang:nif_error(undefined).
+
+%% dt_restore_tag/1
+-spec erlang:dt_restore_tag(TagData) -> true when
+ TagData :: term().
+dt_restore_tag(_TagData) ->
+ erlang:nif_error(undefined).
+
+%% dt_spread_tag/1
+-spec erlang:dt_spread_tag(boolean()) -> TagData when
+ TagData :: term().
+dt_spread_tag(_Bool) ->
+ erlang:nif_error(undefined).
+
%% erase/0
-spec erase() -> [{Key, Val}] when
Key :: term(),
@@ -2071,6 +2115,8 @@ tuple_to_list(_Tuple) ->
(dist_ctrl) -> {Node :: node(),
ControllingEntity :: port() | pid()};
(driver_version) -> string();
+ (dynamic_trace) -> none | dtrace | systemtap;
+ (dynamic_trace_probes) -> boolean();
(elib_malloc) -> false;
(dist_buf_busy_limit) -> non_neg_integer();
(fullsweep_after) -> {fullsweep_after, non_neg_integer()};
diff --git a/erts/preloaded/src/prim_file.erl b/erts/preloaded/src/prim_file.erl
index fcf94c5fa2..d66f0e09cc 100644
--- a/erts/preloaded/src/prim_file.erl
+++ b/erts/preloaded/src/prim_file.erl
@@ -294,7 +294,7 @@ advise(#file_descriptor{module = ?MODULE, data = {Port, _}},
%% Returns {error, Reason} | ok.
write(#file_descriptor{module = ?MODULE, data = {Port, _}}, Bytes) ->
- case drv_command(Port, [?FILE_WRITE,Bytes]) of
+ case drv_command_nt(Port, [?FILE_WRITE,erlang:dt_prepend_vm_tag_data(Bytes)],undefined) of
{ok, _Size} ->
ok;
Error ->
@@ -309,8 +309,8 @@ pwrite(#file_descriptor{module = ?MODULE, data = {Port, _}}, L)
pwrite_int(_, [], 0, [], []) ->
ok;
pwrite_int(Port, [], N, Spec, Data) ->
- Header = list_to_binary([<<?FILE_PWRITEV, N:32>> | reverse(Spec)]),
- case drv_command_raw(Port, [Header | reverse(Data)]) of
+ Header = list_to_binary([?FILE_PWRITEV, erlang:dt_prepend_vm_tag_data(<<N:32>>) | reverse(Spec)]),
+ case drv_command_nt(Port, [Header | reverse(Data)], undefined) of
{ok, _Size} ->
ok;
Error ->
@@ -428,7 +428,7 @@ pread(#file_descriptor{module = ?MODULE, data = {Port, _}}, L)
pread_int(_, [], 0, []) ->
{ok, []};
pread_int(Port, [], N, Spec) ->
- drv_command(Port, [<<?FILE_PREADV, 0:32, N:32>> | reverse(Spec)]);
+ drv_command_nt(Port, [?FILE_PREADV, erlang:dt_prepend_vm_tag_data(<<0:32, N:32>>) | reverse(Spec)],undefined);
pread_int(Port, [{Offs, Size} | T], N, Spec)
when is_integer(Offs), is_integer(Size), 0 =< Size ->
if
@@ -449,9 +449,9 @@ pread(#file_descriptor{module = ?MODULE, data = {Port, _}}, Offs, Size)
if
-(?LARGEFILESIZE) =< Offs, Offs < ?LARGEFILESIZE,
Size < ?LARGEFILESIZE ->
- case drv_command(Port,
- <<?FILE_PREADV, 0:32, 1:32,
- Offs:64/signed, Size:64>>) of
+ case drv_command_nt(Port,
+ [?FILE_PREADV, erlang:dt_prepend_vm_tag_data(<<0:32, 1:32,
+ Offs:64/signed, Size:64>>)], undefined) of
{ok, [eof]} ->
eof;
{ok, [Data]} ->
@@ -949,12 +949,17 @@ drv_open(Driver, Portopts) ->
%% Closes a port in a safe way. Returns ok.
drv_close(Port) ->
- try erlang:port_close(Port) catch error:_ -> ok end,
- receive %% Ugly workaround in case the caller==owner traps exits
- {'EXIT', Port, _Reason} ->
- ok
- after 0 ->
- ok
+ Save = erlang:dt_spread_tag(false),
+ try
+ try erlang:port_close(Port) catch error:_ -> ok end,
+ receive %% Ugly workaround in case the caller==owner traps exits
+ {'EXIT', Port, _Reason} ->
+ ok
+ after 0 ->
+ ok
+ end
+ after
+ erlang:dt_restore_tag(Save)
end.
@@ -964,9 +969,6 @@ drv_close(Port) ->
%% then closed after the result has been received.
%% Returns {ok, Result} or {error, Reason}.
-drv_command_raw(Port, Command) ->
- drv_command(Port, Command, false, undefined).
-
drv_command(Port, Command) ->
drv_command(Port, Command, undefined).
@@ -982,7 +984,8 @@ drv_command(Port, Command, R) ->
end.
drv_command(Port, Command, Validated, R) when is_port(Port) ->
- try erlang:port_command(Port, Command) of
+ Save = erlang:dt_spread_tag(false),
+ try erlang:port_command(Port, erlang:dt_append_vm_tag_data(Command)) of
true ->
drv_get_response(Port, R)
catch
@@ -1001,6 +1004,8 @@ drv_command(Port, Command, Validated, R) when is_port(Port) ->
end;
error:Reason ->
{error, Reason}
+ after
+ erlang:dt_restore_tag(Save)
end;
drv_command({Driver, Portopts}, Command, Validated, R) ->
case drv_open(Driver, Portopts) of
@@ -1011,6 +1016,25 @@ drv_command({Driver, Portopts}, Command, Validated, R) ->
Error ->
Error
end.
+drv_command_nt(Port, Command, R) when is_port(Port) ->
+ Save = erlang:dt_spread_tag(false),
+ try erlang:port_command(Port, Command) of
+ true ->
+ drv_get_response(Port, R)
+ catch
+ error:badarg ->
+ try erlang:iolist_size(Command) of
+ _ -> % Valid
+ {error, einval}
+ catch
+ error:_ ->
+ {error, badarg}
+ end;
+ error:Reason ->
+ {error, Reason}
+ after
+ erlang:dt_restore_tag(Save)
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 22:38:25 +0000