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-rw-r--r--lib/kernel/Makefile2
-rw-r--r--lib/kernel/doc/src/file.xml23
-rw-r--r--lib/kernel/doc/src/seq_trace.xml57
-rw-r--r--lib/kernel/src/erl_epmd.erl11
-rw-r--r--lib/kernel/src/erts_debug.erl11
-rw-r--r--lib/kernel/src/file.erl28
-rw-r--r--lib/kernel/src/file_io_server.erl8
-rw-r--r--lib/kernel/src/group.erl8
-rw-r--r--lib/kernel/src/raw_file_io_compressed.erl6
-rw-r--r--lib/kernel/src/raw_file_io_delayed.erl6
-rw-r--r--lib/kernel/src/raw_file_io_list.erl7
-rw-r--r--lib/kernel/src/seq_trace.erl20
-rw-r--r--lib/kernel/src/user.erl53
-rw-r--r--lib/kernel/test/erl_distribution_wb_SUITE.erl58
-rw-r--r--lib/kernel/test/file_SUITE.erl201
-rw-r--r--lib/kernel/test/gen_tcp_api_SUITE.erl7
-rw-r--r--lib/kernel/test/seq_trace_SUITE.erl100
17 files changed, 461 insertions, 145 deletions
diff --git a/lib/kernel/Makefile b/lib/kernel/Makefile
index b956f5eaf5..5ab8ac63b9 100644
--- a/lib/kernel/Makefile
+++ b/lib/kernel/Makefile
@@ -34,3 +34,5 @@ SPECIAL_TARGETS =
# Default Subdir Targets
# ----------------------------------------------------
include $(ERL_TOP)/make/otp_subdir.mk
+
+include $(ERL_TOP)/make/app_targets.mk
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index fc25e83d40..2c09c84b25 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -939,6 +939,10 @@ f.txt: {person, "kalle", 25}.
support for POSIX <c>O_SYNC</c> or equivalent, use of the <c>sync</c>
flag causes <c>open</c> to return <c>{error, enotsup}</c>.</p>
</item>
+ <tag><c>directory</c></tag>
+ <item>
+ <p>Allows <c>open</c> to work on directories.</p>
+ </item>
</taglist>
<p>Returns:</p>
<taglist>
@@ -953,10 +957,9 @@ f.txt: {person, "kalle", 25}.
</item>
</taglist>
<p><c><anno>IoDevice</anno></c> is really the pid of the process that
- handles the file. This process is linked to the process
- that originally opened the file. If any process to which
- the <c><anno>IoDevice</anno></c> is linked terminates, the file is
- closed and the process itself is terminated.
+ handles the file. This process monitors the process that originally
+ opened the file (the owner process). If the owner process terminates,
+ the file is closed and the process itself terminates too.
An <c><anno>IoDevice</anno></c> returned from this call can be used
as an argument to the I/O functions (see
<seealso marker="stdlib:io"><c>io(3)</c></seealso>).</p>
@@ -985,8 +988,10 @@ f.txt: {person, "kalle", 25}.
</item>
<tag><c>enotdir</c></tag>
<item>
- <p>A component of the filename is not a directory. On some
- platforms, <c>enoent</c> is returned instead.</p>
+ <p>A component of the filename is not a directory, or the
+ filename itself is not a directory if <c>directory</c>
+ mode was specified. On some platforms, <c>enoent</c> is
+ returned instead.</p>
</item>
<tag><c>enospc</c></tag>
<item>
@@ -1438,7 +1443,11 @@ f.txt: {person, "kalle", 25}.
break this module's atomicity guarantees as it can race with a
concurrent call to
<seealso marker="#write_file_info/2"><c>write_file_info/1,2</c>
- </seealso></p>
+ </seealso>.</p>
+ <p>This option has no effect when the function is
+ given an I/O device instead of a file name. Use
+ <seealso marker="#open/2"><c>open/2</c></seealso> with the
+ <c>raw</c> mode to obtain a file descriptor first.</p>
<note>
<p>As file times are stored in POSIX time on most OS, it is faster to
query file information with option <c>posix</c>.</p>
diff --git a/lib/kernel/doc/src/seq_trace.xml b/lib/kernel/doc/src/seq_trace.xml
index aa29223dd0..aa9067f082 100644
--- a/lib/kernel/doc/src/seq_trace.xml
+++ b/lib/kernel/doc/src/seq_trace.xml
@@ -107,6 +107,12 @@ seq_trace:set_token(OldToken), % activate the trace token again
enables/disables tracing on message sending. Default is
<c>false</c>.</p>
</item>
+ <tag><c>set_token('spawn', <anno>Bool</anno>)</c></tag>
+ <item>
+ <p>A trace token flag (<c>true | false</c>) which
+ enables/disables tracing on process spawning. Default is
+ <c>false</c>.</p>
+ </item>
<tag><c>set_token('receive', <anno>Bool</anno>)</c></tag>
<item>
<p>A trace token flag (<c>true | false</c>) which
@@ -257,7 +263,12 @@ TimeStamp = {Seconds, Milliseconds, Microseconds}
<tag><c>{send, Serial, From, To, Message}</c></tag>
<item>
<p>Used when a process <c>From</c> with its trace token flag
- <c>print</c> set to <c>true</c> has sent a message.</p>
+ <c>send</c> set to <c>true</c> has sent a message.</p>
+ </item>
+ <tag><c>{spawn, Serial, Parent, Child, _}</c></tag>
+ <item>
+ <p>Used when a process <c>Parent</c> with its trace token flag
+ <c>spawn</c> set to <c>true</c> has spawned a process.</p>
</item>
<tag><c>{'receive', Serial, From, To, Message}</c></tag>
<item>
@@ -295,8 +306,8 @@ TimeStamp = {Seconds, Milliseconds, Microseconds}
is initiated by a single message. In short, it works as follows:</p>
<p>Each process has a <em>trace token</em>, which can be empty or
not empty. When not empty, the trace token can be seen as
- the tuple <c>{Label, Flags, Serial, From}</c>. The trace token is
- passed invisibly with each message.</p>
+ the tuple <c>{Label, Flags, Serial, From}</c>. The trace token is passed
+ invisibly to spawned processes and with each message sent.</p>
<p>To start a sequential trace, the user must explicitly set
the trace token in the process that will send the first message
in a sequence.</p>
@@ -306,9 +317,10 @@ TimeStamp = {Seconds, Milliseconds, Microseconds}
<p>On each Erlang node, a process can be set as the <em>system tracer</em>.
This process will receive trace messages each time
a message with a trace token is sent or received (if the trace
- token flag <c>send</c> or <c>'receive'</c> is set). The system
- tracer can then print each trace event, write it to a file, or
- whatever suitable.</p>
+ token flag <c>send</c> or <c>'receive'</c> is set), and when a process
+ with a non-empty trace token spawns another (if the trace token flag
+ <c>spawn</c> is set). The system tracer can then print each trace event,
+ write it to a file, or whatever suitable.</p>
<note>
<p>The system tracer only receives those trace events that
occur locally within the Erlang node. To get the whole picture
@@ -322,10 +334,9 @@ TimeStamp = {Seconds, Milliseconds, Microseconds}
<section>
<title>Trace Token</title>
- <p>Each process has a current trace token. Initially, the token is
- empty. When the process sends a message to another process, a
- copy of the current token is sent "invisibly" along with
- the message.</p>
+ <p>Each process has a current trace token, which is copied from the process
+ that spawned it. When a process sends a message to another process, a
+ copy of the current token is sent "invisibly" along with the message.</p>
<p>The current token of a process is set in one of the following two
ways:</p>
<list type="bulleted">
@@ -354,8 +365,9 @@ TimeStamp = {Seconds, Milliseconds, Microseconds}
<p>The algorithm for updating <c>Serial</c> can be described as
follows:</p>
<p>Let each process have two counters, <c>prev_cnt</c> and
- <c>curr_cnt</c>, both are set to <c>0</c> when a process is created.
- The counters are updated at the following occasions:</p>
+ <c>curr_cnt</c>, both are set to <c>0</c> when a process is created
+ outside of a trace sequence. The counters are updated at the following
+ occasions:</p>
<list type="bulleted">
<item>
<p><em>When the process is about to send a message and the trace token
@@ -370,6 +382,16 @@ tcurr := curr_cnt</pre>
passed along with the message.</p>
</item>
<item>
+ <p><em>When the process is about to spawn another process and the trace
+ token is not empty.</em></p>
+ <p>The counters of the parent process are updated in the same way as
+ for send above. The trace token is then passed to the child process,
+ whose counters will be set as follows:</p>
+ <code>
+curr_cnt := tcurr
+prev_cnt := tcurr</code>
+ </item>
+ <item>
<p><em>When the process calls</em> <c>seq_trace:print(Label, Info)</c>,
<c>Label</c> <em>matches the label part of the trace token and the
trace token print flag is <c>true</c>.</em></p>
@@ -487,9 +509,9 @@ tracer() ->
print_trace(Label,TraceInfo,false);
{seq_trace,Label,TraceInfo,Ts} ->
print_trace(Label,TraceInfo,Ts);
- Other -> ignore
+ _Other -> ignore
end,
- tracer().
+ tracer().
print_trace(Label,TraceInfo,false) ->
io:format("~p:",[Label]),
@@ -504,8 +526,11 @@ print_trace({'receive',Serial,From,To,Message}) ->
io:format("~p Received ~p FROM ~p WITH~n~p~n",
[To,Serial,From,Message]);
print_trace({send,Serial,From,To,Message}) ->
- io:format("~p Sent ~p TO ~p WITH~n~p~n",
- [From,Serial,To,Message]).</code>
+ io:format("~p Sent ~p TO ~p WITH~n~p~n",
+ [From,Serial,To,Message]);
+print_trace({spawn,Serial,Parent,Child,_}) ->
+ io:format("~p Spawned ~p AT ~p~n",
+ [Parent,Child,Serial]).</code>
<p>The code that creates a process that runs this tracer function
and sets that process as the system tracer can look like this:</p>
<code type="none">
diff --git a/lib/kernel/src/erl_epmd.erl b/lib/kernel/src/erl_epmd.erl
index 7a14e2635c..f31a1722ce 100644
--- a/lib/kernel/src/erl_epmd.erl
+++ b/lib/kernel/src/erl_epmd.erl
@@ -33,10 +33,10 @@
-define(erlang_daemon_port, 4369).
-endif.
-ifndef(epmd_dist_high).
--define(epmd_dist_high, 4370).
+-define(epmd_dist_high, 6).
-endif.
-ifndef(epmd_dist_low).
--define(epmd_dist_low, 4370).
+-define(epmd_dist_low, 5).
-endif.
%% External exports
@@ -342,6 +342,13 @@ wait_for_reg_reply(Socket, SoFar) ->
receive
{tcp, Socket, Data0} ->
case SoFar ++ Data0 of
+ [$v, Result, A, B, C, D] ->
+ case Result of
+ 0 ->
+ {alive, Socket, ?u32(A, B, C, D)};
+ _ ->
+ {error, duplicate_name}
+ end;
[$y, Result, A, B] ->
case Result of
0 ->
diff --git a/lib/kernel/src/erts_debug.erl b/lib/kernel/src/erts_debug.erl
index e6a30d0b92..7b9067d079 100644
--- a/lib/kernel/src/erts_debug.erl
+++ b/lib/kernel/src/erts_debug.erl
@@ -40,6 +40,15 @@
lc_graph/0, lc_graph_to_dot/2, lc_graph_merge/2,
alloc_blocks_size/1]).
+%% Reroutes calls to the given MFA to error_handler:breakpoint/3
+%%
+%% Note that this is potentially unsafe as compiled code may assume that the
+%% targeted function returns a specific type, triggering undefined behavior if
+%% this function were to return something else.
+%%
+%% For reference, the debugger avoids the issue by purging the affected module
+%% and interpreting all functions in the module, ensuring that no assumptions
+%% are made with regard to return or argument types.
-spec breakpoint(MFA, Flag) -> non_neg_integer() when
MFA :: {Module :: module(),
Function :: atom(),
@@ -92,7 +101,7 @@ copy_shared(_) ->
-spec get_internal_state(W) -> term() when
W :: reds_left | node_and_dist_references | monitoring_nodes
- | next_pid | 'DbTable_words' | check_io_debug
+ | next_pid | 'DbTable_words' | check_io_debug | lc_graph
| process_info_args | processes | processes_bif_info
| max_atom_out_cache_index | nbalance | available_internal_state
| force_heap_frags | memory
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index 1d4e37196c..cde03ce1c4 100644
--- a/lib/kernel/src/file.erl
+++ b/lib/kernel/src/file.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2018. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2019. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -239,20 +239,30 @@ make_dir(Name) ->
del_dir(Name) ->
check_and_call(del_dir, [file_name(Name)]).
--spec read_file_info(Filename) -> {ok, FileInfo} | {error, Reason} when
- Filename :: name_all(),
+-spec read_file_info(File) -> {ok, FileInfo} | {error, Reason} when
+ File :: name_all() | io_device(),
FileInfo :: file_info(),
Reason :: posix() | badarg.
+read_file_info(IoDevice)
+ when is_pid(IoDevice); is_record(IoDevice, file_descriptor) ->
+ read_file_info(IoDevice, []);
+
read_file_info(Name) ->
check_and_call(read_file_info, [file_name(Name)]).
--spec read_file_info(Filename, Opts) -> {ok, FileInfo} | {error, Reason} when
- Filename :: name_all(),
+-spec read_file_info(File, Opts) -> {ok, FileInfo} | {error, Reason} when
+ File :: name_all() | io_device(),
Opts :: [file_info_option()],
FileInfo :: file_info(),
Reason :: posix() | badarg.
+read_file_info(IoDevice, Opts) when is_pid(IoDevice), is_list(Opts) ->
+ file_request(IoDevice, {read_handle_info, Opts});
+
+read_file_info(#file_descriptor{module = Module} = Handle, Opts) when is_list(Opts) ->
+ Module:read_handle_info(Handle, Opts);
+
read_file_info(Name, Opts) when is_list(Opts) ->
Args = [file_name(Name), Opts],
case check_args(Args) of
@@ -460,7 +470,7 @@ raw_write_file_info(Name, #file_info{} = Info) ->
-spec open(File, Modes) -> {ok, IoDevice} | {error, Reason} when
File :: Filename | iodata(),
Filename :: name_all(),
- Modes :: [mode() | ram],
+ Modes :: [mode() | ram | directory],
IoDevice :: io_device(),
Reason :: posix() | badarg | system_limit.
@@ -545,7 +555,7 @@ allocate(#file_descriptor{module = Module} = Handle, Offset, Length) ->
| {no_translation, unicode, latin1}.
read(File, Sz) when (is_pid(File) orelse is_atom(File)), is_integer(Sz), Sz >= 0 ->
- case io:request(File, {get_chars, '', Sz}) of
+ case io:request(File, {get_chars, latin1, '', Sz}) of
Data when is_list(Data); is_binary(Data) ->
{ok, Data};
Other ->
@@ -566,7 +576,7 @@ read(_, _) ->
| {no_translation, unicode, latin1}.
read_line(File) when (is_pid(File) orelse is_atom(File)) ->
- case io:request(File, {get_line, ''}) of
+ case io:request(File, {get_line, latin1, ''}) of
Data when is_list(Data); is_binary(Data) ->
{ok, Data};
Other ->
@@ -1143,7 +1153,7 @@ path_script(Path, File, Bs) ->
{ok, IoDevice, FullName} | {error, Reason} when
Path :: [Dir :: name_all()],
Filename :: name_all(),
- Modes :: [mode()],
+ Modes :: [mode() | directory],
IoDevice :: io_device(),
FullName :: filename_all(),
Reason :: posix() | badarg | system_limit.
diff --git a/lib/kernel/src/file_io_server.erl b/lib/kernel/src/file_io_server.erl
index 34d5497a4a..c03fbb548a 100644
--- a/lib/kernel/src/file_io_server.erl
+++ b/lib/kernel/src/file_io_server.erl
@@ -314,6 +314,14 @@ file_request(truncate,
Reply ->
std_reply(Reply, State)
end;
+file_request({read_handle_info, Opts},
+ #state{handle=Handle}=State) ->
+ case ?CALL_FD(Handle, read_handle_info, [Opts]) of
+ {error,Reason}=Reply ->
+ {stop,Reason,Reply,State};
+ Reply ->
+ {reply,Reply,State}
+ end;
file_request(Unknown,
#state{}=State) ->
Reason = {request, Unknown},
diff --git a/lib/kernel/src/group.erl b/lib/kernel/src/group.erl
index 5625ae6eb7..8c0ced8678 100644
--- a/lib/kernel/src/group.erl
+++ b/lib/kernel/src/group.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2018. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2019. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -795,12 +795,6 @@ save_line({stack, U, _L, D}, Line) ->
{stack, U, Line, D}.
get_lines(Ls) -> get_all_lines(Ls).
-%get_lines({stack, U, {}, []}) ->
-% U;
-%get_lines({stack, U, {}, D}) ->
-% tl(lists:reverse(D, U));
-%get_lines({stack, U, L, D}) ->
-% get_lines({stack, U, {}, [L|D]}).
%% There's a funny behaviour whenever the line stack doesn't have a "\n"
%% at its end -- get_lines() seemed to work on the assumption it *will* be
diff --git a/lib/kernel/src/raw_file_io_compressed.erl b/lib/kernel/src/raw_file_io_compressed.erl
index d5ab042d25..66c5621dd1 100644
--- a/lib/kernel/src/raw_file_io_compressed.erl
+++ b/lib/kernel/src/raw_file_io_compressed.erl
@@ -21,7 +21,8 @@
-export([close/1, sync/1, datasync/1, truncate/1, advise/4, allocate/3,
position/2, write/2, pwrite/2, pwrite/3,
- read_line/1, read/2, pread/2, pread/3]).
+ read_line/1, read/2, pread/2, pread/3,
+ read_handle_info/2]).
%% OTP internal.
-export([ipread_s32bu_p32bu/3, sendfile/8]).
@@ -118,6 +119,9 @@ ipread_s32bu_p32bu(Fd, Offset, MaxSize) ->
sendfile(_,_,_,_,_,_,_,_) ->
{error, enotsup}.
+read_handle_info(Fd, Opts) ->
+ wrap_call(Fd, [Opts]).
+
wrap_call(Fd, Command) ->
{_Owner, Pid} = get_fd_data(Fd),
try gen_statem:call(Pid, Command, infinity) of
diff --git a/lib/kernel/src/raw_file_io_delayed.erl b/lib/kernel/src/raw_file_io_delayed.erl
index d2ad7550a1..766467437e 100644
--- a/lib/kernel/src/raw_file_io_delayed.erl
+++ b/lib/kernel/src/raw_file_io_delayed.erl
@@ -23,7 +23,8 @@
-export([close/1, sync/1, datasync/1, truncate/1, advise/4, allocate/3,
position/2, write/2, pwrite/2, pwrite/3,
- read_line/1, read/2, pread/2, pread/3]).
+ read_line/1, read/2, pread/2, pread/3,
+ read_handle_info/2]).
%% OTP internal.
-export([ipread_s32bu_p32bu/3, sendfile/8]).
@@ -304,6 +305,9 @@ ipread_s32bu_p32bu(Fd, Offset, MaxSize) ->
sendfile(_,_,_,_,_,_,_,_) ->
{error, enotsup}.
+read_handle_info(Fd, Opts) ->
+ wrap_call(Fd, [Opts]).
+
wrap_call(Fd, Command) ->
#{ pid := Pid } = get_fd_data(Fd),
try gen_statem:call(Pid, Command, infinity) of
diff --git a/lib/kernel/src/raw_file_io_list.erl b/lib/kernel/src/raw_file_io_list.erl
index 2e16e63f0e..e4fe434e13 100644
--- a/lib/kernel/src/raw_file_io_list.erl
+++ b/lib/kernel/src/raw_file_io_list.erl
@@ -21,7 +21,8 @@
-export([close/1, sync/1, datasync/1, truncate/1, advise/4, allocate/3,
position/2, write/2, pwrite/2, pwrite/3,
- read_line/1, read/2, pread/2, pread/3]).
+ read_line/1, read/2, pread/2, pread/3,
+ read_handle_info/2]).
%% OTP internal.
-export([ipread_s32bu_p32bu/3, sendfile/8]).
@@ -126,3 +127,7 @@ sendfile(Fd, Dest, Offset, Bytes, ChunkSize, Headers, Trailers, Flags) ->
Args = [Dest, Offset, Bytes, ChunkSize, Headers, Trailers, Flags],
PrivateFd = Fd#file_descriptor.data,
?CALL_FD(PrivateFd, sendfile, Args).
+
+read_handle_info(Fd, Opts) ->
+ PrivateFd = Fd#file_descriptor.data,
+ ?CALL_FD(PrivateFd, read_handle_info, [Opts]).
diff --git a/lib/kernel/src/seq_trace.erl b/lib/kernel/src/seq_trace.erl
index f0bd1fabe9..bc023007bf 100644
--- a/lib/kernel/src/seq_trace.erl
+++ b/lib/kernel/src/seq_trace.erl
@@ -20,12 +20,14 @@
-module(seq_trace).
--define(SEQ_TRACE_SEND, 1). %(1 << 0)
--define(SEQ_TRACE_RECEIVE, 2). %(1 << 1)
--define(SEQ_TRACE_PRINT, 4). %(1 << 2)
--define(SEQ_TRACE_NOW_TIMESTAMP, 8). %(1 << 3)
--define(SEQ_TRACE_STRICT_MON_TIMESTAMP, 16). %(1 << 4)
--define(SEQ_TRACE_MON_TIMESTAMP, 32). %(1 << 5)
+%% Don't forget to update seq_trace_SUITE after changing these.
+-define(SEQ_TRACE_SEND, 1). %(1 << 0)
+-define(SEQ_TRACE_RECEIVE, 2). %(1 << 1)
+-define(SEQ_TRACE_PRINT, 4). %(1 << 2)
+-define(SEQ_TRACE_NOW_TIMESTAMP, 8). %(1 << 3)
+-define(SEQ_TRACE_STRICT_MON_TIMESTAMP, 16). %(1 << 4)
+-define(SEQ_TRACE_MON_TIMESTAMP, 32). %(1 << 5)
+-define(SEQ_TRACE_SPAWN, 64). %(1 << 6)
-export([set_token/1,
set_token/2,
@@ -39,7 +41,8 @@
%%---------------------------------------------------------------------------
--type flag() :: 'send' | 'receive' | 'print' | 'timestamp' | 'monotonic_timestamp' | 'strict_monotonic_timestamp'.
+-type flag() :: 'send' | 'spawn' | 'receive' | 'print' | 'timestamp' |
+ 'monotonic_timestamp' | 'strict_monotonic_timestamp'.
-type component() :: 'label' | 'serial' | flag().
-type value() :: (Label :: term())
| {Previous :: non_neg_integer(),
@@ -142,10 +145,11 @@ set_token2([]) ->
decode_flags(Flags) ->
Print = (Flags band ?SEQ_TRACE_PRINT) > 0,
Send = (Flags band ?SEQ_TRACE_SEND) > 0,
+ Spawn = (Flags band ?SEQ_TRACE_SPAWN) > 0,
Rec = (Flags band ?SEQ_TRACE_RECEIVE) > 0,
NowTs = (Flags band ?SEQ_TRACE_NOW_TIMESTAMP) > 0,
StrictMonTs = (Flags band ?SEQ_TRACE_STRICT_MON_TIMESTAMP) > 0,
MonTs = (Flags band ?SEQ_TRACE_MON_TIMESTAMP) > 0,
- [{print,Print},{send,Send},{'receive',Rec},{timestamp,NowTs},
+ [{print,Print},{send,Send},{spawn,Spawn},{'receive',Rec},{timestamp,NowTs},
{strict_monotonic_timestamp, StrictMonTs},
{monotonic_timestamp, MonTs}].
diff --git a/lib/kernel/src/user.erl b/lib/kernel/src/user.erl
index 5a3487a9ba..81520dd841 100644
--- a/lib/kernel/src/user.erl
+++ b/lib/kernel/src/user.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2019. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -537,54 +537,6 @@ get_line_doit(Prompt, Port, Q, Accu, Enc) ->
binrev(L, T) ->
list_to_binary(lists:reverse(L, T)).
-%% is_cr_at(Pos,Bin) ->
-%% case Bin of
-%% <<_:Pos/binary,$\r,_/binary>> ->
-%% true;
-%% _ ->
-%% false
-%% end.
-
-%% collect_line_bin_re(Bin,_Data,Stack,_) ->
-%% case re:run(Bin,<<"\n">>) of
-%% nomatch ->
-%% X = byte_size(Bin)-1,
-%% case is_cr_at(X,Bin) of
-%% true ->
-%% <<D:X/binary,_/binary>> = Bin,
-%% [<<$\r>>,D|Stack];
-%% false ->
-%% [Bin|Stack]
-%% end;
-%% {match,[{Pos,1}]} ->
-%% PosPlus = Pos + 1,
-%% case Stack of
-%% [] ->
-%% case is_cr_at(Pos - 1,Bin) of
-%% false ->
-%% <<Head:PosPlus/binary,Tail/binary>> = Bin,
-%% {stop, Head, Tail};
-%% true ->
-%% PosMinus = Pos - 1,
-%% <<Head:PosMinus/binary,_,_,Tail/binary>> = Bin,
-%% {stop, binrev([],[Head,$\n]),Tail}
-%% end;
-%% [<<$\r>>|Stack1] when Pos =:= 0 ->
-
-%% <<_:PosPlus/binary,Tail/binary>> = Bin,
-%% {stop,binrev(Stack1, [$\n]),Tail};
-%% _ ->
-%% case is_cr_at(Pos - 1,Bin) of
-%% false ->
-%% <<Head:PosPlus/binary,Tail/binary>> = Bin,
-%% {stop,binrev(Stack, [Head]),Tail};
-%% true ->
-%% PosMinus = Pos - 1,
-%% <<Head:PosMinus/binary,_,_,Tail/binary>> = Bin,
-%% {stop, binrev(Stack,[Head,$\n]),Tail}
-%% end
-%% end
-%% end.
%% get_chars(Prompt, Module, Function, XtraArg, Port, Queue, Encoding)
%% Gets characters from the input port until the applied function
%% returns {stop,Result,RestBuf}. Does not block output until input
@@ -618,9 +570,6 @@ get_chars(Prompt, M, F, Xa, Port, Q, State, Enc) ->
{Port, eof} ->
put(eof, true),
{ok, eof, queue:new()};
- %%{io_request,From,ReplyAs,Request} when is_pid(From) ->
- %% get_chars_req(Prompt, M, F, Xa, Port, queue:new(), State,
- %% Request, From, ReplyAs);
{io_request,From,ReplyAs,{get_geometry,_}=Req} when is_pid(From) ->
do_io_request(Req, From, ReplyAs, Port,
queue:new()), %Keep Q over this call
diff --git a/lib/kernel/test/erl_distribution_wb_SUITE.erl b/lib/kernel/test/erl_distribution_wb_SUITE.erl
index 8256444bdc..bb42a0ac39 100644
--- a/lib/kernel/test/erl_distribution_wb_SUITE.erl
+++ b/lib/kernel/test/erl_distribution_wb_SUITE.erl
@@ -47,6 +47,9 @@
R
end).
+-define(EPMD_DIST_HIGH, 6).
+-define(EPMD_DIST_LOW, 5).
+
-define(DFLAG_PUBLISHED,1).
-define(DFLAG_ATOM_CACHE,2).
-define(DFLAG_EXTENDED_REFERENCES,4).
@@ -57,15 +60,18 @@
-define(DFLAG_NEW_FUN_TAGS,16#80).
-define(DFLAG_EXTENDED_PIDS_PORTS,16#100).
-define(DFLAG_UTF8_ATOMS, 16#10000).
+-define(DFLAG_BIG_CREATION, 16#40000).
%% From R9 and forward extended references is compulsory
%% From R10 and forward extended pids and ports are compulsory
%% From R20 and forward UTF8 atoms are compulsory
%% From R21 and forward NEW_FUN_TAGS is compulsory (no more tuple fallback {fun, ...})
+%% From R23 and forward BIG_CREATION is compulsory
-define(COMPULSORY_DFLAGS, (?DFLAG_EXTENDED_REFERENCES bor
?DFLAG_EXTENDED_PIDS_PORTS bor
?DFLAG_UTF8_ATOMS bor
- ?DFLAG_NEW_FUN_TAGS)).
+ ?DFLAG_NEW_FUN_TAGS bor
+ ?DFLAG_BIG_CREATION)).
-define(PASS_THROUGH, $p).
@@ -208,9 +214,9 @@ pending_up_md5(Node,OurName,Cookie) ->
{ok, SocketA} = gen_tcp:connect(atom_to_list(NB),PortNo,
[{active,false},
{packet,2}]),
- send_name(SocketA,OurName,5),
+ send_name(SocketA,OurName, ?EPMD_DIST_HIGH),
ok = recv_status(SocketA),
- {hidden,Node,5,HisChallengeA} = recv_challenge(SocketA), % See 1)
+ {hidden,Node,?EPMD_DIST_HIGH,HisChallengeA} = recv_challenge(SocketA), % See 1)
OurChallengeA = gen_challenge(),
OurDigestA = gen_digest(HisChallengeA, Cookie),
send_challenge_reply(SocketA, OurChallengeA, OurDigestA),
@@ -224,11 +230,11 @@ pending_up_md5(Node,OurName,Cookie) ->
{ok, SocketB} = gen_tcp:connect(atom_to_list(NB),PortNo,
[{active,false},
{packet,2}]),
- send_name(SocketB,OurName,5),
+ send_name(SocketB,OurName, ?EPMD_DIST_HIGH),
alive = recv_status(SocketB),
send_status(SocketB, true),
gen_tcp:close(SocketA),
- {hidden,Node,5,HisChallengeB} = recv_challenge(SocketB), % See 1)
+ {hidden,Node,?EPMD_DIST_HIGH,HisChallengeB} = recv_challenge(SocketB), % See 1)
OurChallengeB = gen_challenge(),
OurDigestB = gen_digest(HisChallengeB, Cookie),
send_challenge_reply(SocketB, OurChallengeB, OurDigestB),
@@ -254,7 +260,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node ->
Else ->
exit(Else)
end,
- EpmdSocket = register(OurName, LSocket, 1, 5),
+ EpmdSocket = register_node(OurName, LSocket, ?EPMD_DIST_LOW, ?EPMD_DIST_HIGH),
{NA, NB} = split(Node),
rpc:cast(Node, net_adm, ping, [OurName]),
receive after 1000 -> ok end,
@@ -262,7 +268,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node ->
{ok, SocketA} = gen_tcp:connect(atom_to_list(NB),PortNo,
[{active,false},
{packet,2}]),
- send_name(SocketA,OurName,5),
+ send_name(SocketA,OurName, ?EPMD_DIST_HIGH),
%% We are still not marked up on the other side, as our first message
%% is not sent.
SocketB = case gen_tcp:accept(LSocket) of
@@ -275,11 +281,11 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node ->
%% Now we are expected to close A
gen_tcp:close(SocketA),
%% But still Socket B will continue
- {normal,Node,5} = recv_name(SocketB), % See 1)
+ {normal,Node,?EPMD_DIST_HIGH} = recv_name(SocketB), % See 1)
send_status(SocketB, ok_simultaneous),
MyChallengeB = gen_challenge(),
- send_challenge(SocketB, OurName, MyChallengeB,5),
- HisChallengeB = recv_challenge_reply(SocketB, MyChallengeB, Cookie),
+ send_challenge(SocketB, OurName, MyChallengeB, ?EPMD_DIST_HIGH),
+ {ok,HisChallengeB} = recv_challenge_reply(SocketB, MyChallengeB, Cookie),
DigestB = gen_digest(HisChallengeB,Cookie),
send_challenge_ack(SocketB, DigestB),
inet:setopts(SocketB, [{active, false},
@@ -301,7 +307,8 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node ->
Else ->
exit(Else)
end,
- EpmdSocket = register(OurName, LSocket, 1, 5),
+ EpmdSocket = register_node(OurName, LSocket,
+ ?EPMD_DIST_LOW, ?EPMD_DIST_HIGH),
{NA, NB} = split(Node),
rpc:cast(Node, net_adm, ping, [OurName]),
receive after 1000 -> ok end,
@@ -315,16 +322,16 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node ->
Else2 ->
exit(Else2)
end,
- send_name(SocketA,OurName,5),
+ send_name(SocketA,OurName, ?EPMD_DIST_HIGH),
ok_simultaneous = recv_status(SocketA),
%% Socket B should die during this
case catch begin
- {normal,Node,5} = recv_name(SocketB), % See 1)
+ {normal,Node,?EPMD_DIST_HIGH} = recv_name(SocketB), % See 1)
send_status(SocketB, ok_simultaneous),
MyChallengeB = gen_challenge(),
send_challenge(SocketB, OurName, MyChallengeB,
5),
- HisChallengeB = recv_challenge_reply(
+ {ok,HisChallengeB} = recv_challenge_reply(
SocketB,
MyChallengeB,
Cookie),
@@ -346,7 +353,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node ->
end,
gen_tcp:close(SocketB),
%% But still Socket A will continue
- {hidden,Node,5,HisChallengeA} = recv_challenge(SocketA), % See 1)
+ {hidden,Node,?EPMD_DIST_HIGH,HisChallengeA} = recv_challenge(SocketA), % See 1)
OurChallengeA = gen_challenge(),
OurDigestA = gen_digest(HisChallengeA, Cookie),
send_challenge_reply(SocketA, OurChallengeA, OurDigestA),
@@ -372,7 +379,7 @@ missing_compulsory_dflags(Config) when is_list(Config) ->
[{active,false},
{packet,2}]),
BadNode = list_to_atom(atom_to_list(Name2)++"@"++atom_to_list(NB)),
- send_name(SocketA,BadNode,5,0),
+ send_name(SocketA,BadNode, ?EPMD_DIST_HIGH, 0),
not_allowed = recv_status(SocketA),
gen_tcp:close(SocketA),
stop_node(Node),
@@ -516,16 +523,16 @@ send_challenge_reply(Socket, Challenge, Digest) ->
recv_challenge_reply(Socket, ChallengeA, Cookie) ->
case gen_tcp:recv(Socket, 0) of
- {ok,[$r,CB3,CB2,CB1,CB0 | SumB]} when length(SumB) == 16 ->
+ {ok,[$r,CB3,CB2,CB1,CB0 | SumB]=Data} when length(SumB) == 16 ->
SumA = gen_digest(ChallengeA, Cookie),
ChallengeB = ?u32(CB3,CB2,CB1,CB0),
if SumB == SumA ->
- ChallengeB;
+ {ok,ChallengeB};
true ->
- ?shutdown(bad_challenge_reply)
+ {error,Data}
end;
- _ ->
- ?shutdown(no_node)
+ Err ->
+ {error,Err}
end.
send_challenge_ack(Socket, Digest) ->
@@ -620,6 +627,13 @@ wait_for_reg_reply(Socket, SoFar) ->
receive
{tcp, Socket, Data0} ->
case SoFar ++ Data0 of
+ [$v, Result, A, B, C, D] ->
+ case Result of
+ 0 ->
+ {alive, Socket, ?u32(A, B, C, D)};
+ _ ->
+ {error, duplicate_name}
+ end;
[$y, Result, A, B] ->
case Result of
0 ->
@@ -640,7 +654,7 @@ wait_for_reg_reply(Socket, SoFar) ->
end.
-register(NodeName, ListenSocket, VLow, VHigh) ->
+register_node(NodeName, ListenSocket, VLow, VHigh) ->
{ok,{_,TcpPort}} = inet:sockname(ListenSocket),
case do_register_node(NodeName, TcpPort, VLow, VHigh) of
{alive, Socket, _Creation} ->
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl
index 3bc8e6e828..747f1d9e1b 100644
--- a/lib/kernel/test/file_SUITE.erl
+++ b/lib/kernel/test/file_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2018. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2019. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -58,6 +58,8 @@
-export([ file_info_basic_file/1, file_info_basic_directory/1,
file_info_bad/1, file_info_times/1, file_write_file_info/1,
file_wfi_helpers/1]).
+-export([ file_handle_info_basic_file/1, file_handle_info_basic_directory/1,
+ file_handle_info_times/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]).
@@ -153,7 +155,10 @@ groups() ->
{pos, [], [pos1, pos2, pos3]},
{file_info, [],
[file_info_basic_file, file_info_basic_directory,
- file_info_bad, file_info_times, file_write_file_info,
+ file_info_bad, file_info_times,
+ file_handle_info_basic_file, file_handle_info_basic_directory,
+ file_handle_info_times,
+ file_write_file_info,
file_wfi_helpers]},
{consult, [], [consult1, path_consult]},
{eval, [], [eval1, path_eval]},
@@ -273,11 +278,11 @@ mini_server(Parent) ->
Parent ! {io_request,From,To,{put_chars,Data}},
From ! {io_reply, To, ok},
mini_server(Parent);
- {io_request,From,To,{get_chars,'',N}} ->
+ {io_request,From,To,{get_chars,_Encoding,'',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,''}} ->
+ {io_request,From,To,{get_line,_Encoding,''}} ->
Parent ! {io_request,From,To,{get_line,''}},
From ! {io_reply, To, {ok, "hej\n"}},
mini_server(Parent)
@@ -987,6 +992,14 @@ new_modes(Config) when is_list(Config) ->
ok
end,
+ % open directory
+ {ok, Fd9} = ?FILE_MODULE:open(NewDir, [directory]),
+ ok = ?FILE_MODULE:close(Fd9),
+
+ % open raw directory
+ {ok, Fd10} = ?FILE_MODULE:open(NewDir, [raw, directory]),
+ ok = ?FILE_MODULE:close(Fd10),
+
[] = flush(),
ok.
@@ -1236,6 +1249,9 @@ open_errors(Config) when is_list(Config) ->
{error, E4} = ?FILE_MODULE:open(DataDirSlash, [write]),
{eisdir,eisdir,eisdir,eisdir} = {E1,E2,E3,E4},
+ Real = filename:join(DataDir, "realmen.html"),
+ {error, enotdir} = ?FILE_MODULE:open(Real, [directory]),
+
[] = flush(),
ok.
@@ -1406,7 +1422,8 @@ file_info_basic_directory(Config) when is_list(Config) ->
{win32, _} ->
test_directory("/", read_write),
test_directory("c:/", read_write),
- test_directory("c:\\", read_write);
+ test_directory("c:\\", read_write),
+ test_directory("\\\\localhost\\c$", read_write);
_ ->
test_directory("/", read)
end,
@@ -1538,6 +1555,180 @@ filter_atime(Atime, Config) ->
Atime
end.
+%% Test read_file_info on I/O devices.
+
+file_handle_info_basic_file(Config) when is_list(Config) ->
+ RootDir = proplists:get_value(priv_dir, Config),
+
+ %% Create a short file.
+ Name = filename:join(RootDir,
+ atom_to_list(?MODULE)
+ ++"_basic_test.fil"),
+ {ok,Fd1} = ?FILE_MODULE:open(Name, write),
+ io:put_chars(Fd1, "foo bar"),
+ ok = ?FILE_MODULE:close(Fd1),
+
+ %% Test that the file has the expected attributes.
+ %% The times are tricky, so we will save them to a separate test case.
+
+ {ok, Fd} = ?FILE_MODULE:open(Name, read),
+ {ok,FileInfo} = ?FILE_MODULE:read_file_info(Fd),
+ ok = ?FILE_MODULE:close(Fd),
+
+ {ok, FdRaw} = ?FILE_MODULE:open(Name, [read, raw]),
+ {ok,FileInfoRaw} = ?FILE_MODULE:read_file_info(FdRaw),
+ ok = ?FILE_MODULE:close(FdRaw),
+
+ #file_info{size=Size,type=Type,access=Access,
+ atime=AccessTime,mtime=ModifyTime} = FileInfo = FileInfoRaw,
+ io:format("Access ~p, Modify ~p", [AccessTime, ModifyTime]),
+ Size = 7,
+ Type = regular,
+ read_write = Access,
+ true = abs(time_dist(filter_atime(AccessTime, Config),
+ filter_atime(ModifyTime,
+ Config))) < 5,
+ all_integers(tuple_to_list(AccessTime) ++ tuple_to_list(ModifyTime)),
+
+ [] = flush(),
+ ok.
+
+file_handle_info_basic_directory(Config) when is_list(Config) ->
+ %% Note: filename:join/1 removes any trailing slash,
+ %% which is essential for ?FILE_MODULE:file_info/1 to work on
+ %% platforms such as Windows95.
+ RootDir = filename:join([proplists:get_value(priv_dir, Config)]),
+
+ %% Test that the RootDir directory has the expected attributes.
+ test_directory_handle(RootDir, read_write),
+
+ %% Note that on Windows file systems,
+ %% "/" or "c:/" are *NOT* directories.
+ %% Therefore, test that ?FILE_MODULE:file_info/1 behaves as if they were
+ %% directories.
+ case os:type() of
+ {win32, _} ->
+ test_directory_handle("/", read_write),
+ test_directory_handle("c:/", read_write),
+ test_directory_handle("c:\\", read_write),
+ test_directory_handle("\\\\localhost\\c$", read_write);
+ _ ->
+ test_directory_handle("/", read)
+ end,
+ ok.
+
+test_directory_handle(Name, ExpectedAccess) ->
+ {ok, DirFd} = file:open(Name, [read, directory]),
+ try
+ {ok,FileInfo} = ?FILE_MODULE:read_file_info(DirFd),
+ {ok,FileInfo} = ?FILE_MODULE:read_file_info(DirFd, [raw]),
+ #file_info{size=Size,type=Type,access=Access,
+ atime=AccessTime,mtime=ModifyTime} = FileInfo,
+ io:format("Testing directory ~s", [Name]),
+ io:format("Directory size is ~p", [Size]),
+ io:format("Access ~p", [Access]),
+ io:format("Access time ~p; Modify time~p",
+ [AccessTime, ModifyTime]),
+ Type = directory,
+ Access = ExpectedAccess,
+ all_integers(tuple_to_list(AccessTime) ++ tuple_to_list(ModifyTime)),
+ [] = flush(),
+ ok
+ after
+ file:close(DirFd)
+ end.
+
+%% Test that the file times behave as they should.
+
+file_handle_info_times(Config) when is_list(Config) ->
+ %% We have to try this twice, since if the test runs across the change
+ %% of a month the time diff calculations will fail. But it won't happen
+ %% if you run it twice in succession.
+ test_server:m_out_of_n(
+ 1,2,
+ fun() -> file_handle_info_int(Config) end),
+ ok.
+
+file_handle_info_int(Config) ->
+ %% Note: filename:join/1 removes any trailing slash,
+ %% which is essential for ?FILE_MODULE:file_info/1 to work on
+ %% platforms such as Windows95.
+
+ RootDir = filename:join([proplists:get_value(priv_dir, Config)]),
+ io:format("RootDir = ~p", [RootDir]),
+
+ Name = filename:join(RootDir,
+ atom_to_list(?MODULE)
+ ++"_file_info.fil"),
+ {ok,Fd1} = ?FILE_MODULE:open(Name, write),
+ io:put_chars(Fd1,"foo"),
+ {ok,FileInfo1} = ?FILE_MODULE:read_file_info(Fd1),
+ ok = ?FILE_MODULE:close(Fd1),
+
+ {ok,Fd1Raw} = ?FILE_MODULE:open(Name, [read, raw]),
+ {ok,FileInfo1Raw} = ?FILE_MODULE:read_file_info(Fd1Raw),
+ ok = ?FILE_MODULE:close(Fd1Raw),
+
+ %% We assert that everything but the size is the same, on some OSs the
+ %% size may not have been flushed to disc and we do not want to do a
+ %% sync to force it.
+ FileInfo1Raw = FileInfo1#file_info{ size = FileInfo1Raw#file_info.size },
+
+ #file_info{type=regular,atime=AccTime1,mtime=ModTime1} = FileInfo1,
+
+ Now = erlang:localtime(), %???
+ io:format("Now ~p",[Now]),
+ io:format("Open file Acc ~p Mod ~p",[AccTime1,ModTime1]),
+ true = abs(time_dist(filter_atime(Now, Config),
+ filter_atime(AccTime1,
+ Config))) < 8,
+ true = abs(time_dist(Now,ModTime1)) < 8,
+
+ %% Sleep until we can be sure the seconds value has changed.
+ %% Note: FAT-based filesystem (like on Windows 95) have
+ %% a resolution of 2 seconds.
+ timer:sleep(2200),
+
+ %% close the file, and watch the modify date change
+
+ {ok,Fd2} = ?FILE_MODULE:open(Name, read),
+ {ok,FileInfo2} = ?FILE_MODULE:read_file_info(Fd2),
+ ok = ?FILE_MODULE:close(Fd2),
+
+ {ok,Fd2Raw} = ?FILE_MODULE:open(Name, [read, raw]),
+ {ok,FileInfo2Raw} = ?FILE_MODULE:read_file_info(Fd2Raw),
+ ok = ?FILE_MODULE:close(Fd2Raw),
+
+ #file_info{size=Size,type=regular,access=Access,
+ atime=AccTime2,mtime=ModTime2} = FileInfo2 = FileInfo2Raw,
+ io:format("Closed file Acc ~p Mod ~p",[AccTime2,ModTime2]),
+ true = time_dist(ModTime1,ModTime2) >= 0,
+
+ %% this file is supposed to be binary, so it'd better keep it's size
+ Size = 3,
+ Access = read_write,
+
+ %% Do some directory checking
+
+ {ok,Fd3} = ?FILE_MODULE:open(RootDir, [read, directory]),
+ {ok,FileInfo3} = ?FILE_MODULE:read_file_info(Fd3),
+ ok = ?FILE_MODULE:close(Fd3),
+
+ {ok,Fd3Raw} = ?FILE_MODULE:open(RootDir, [read, directory, raw]),
+ {ok,FileInfo3Raw} = ?FILE_MODULE:read_file_info(Fd3Raw),
+ ok = ?FILE_MODULE:close(Fd3Raw),
+
+ #file_info{size=DSize,type=directory,access=DAccess,
+ atime=AccTime3,mtime=ModTime3} = FileInfo3 = FileInfo3Raw,
+ %% this dir was modified only a few secs ago
+ io:format("Dir Acc ~p; Mod ~p; Now ~p", [AccTime3, ModTime3, Now]),
+ true = abs(time_dist(Now,ModTime3)) < 5,
+ DAccess = read_write,
+ io:format("Dir size is ~p",[DSize]),
+
+ [] = flush(),
+ ok.
+
%% Test the write_file_info/2 function.
file_write_file_info(Config) when is_list(Config) ->
diff --git a/lib/kernel/test/gen_tcp_api_SUITE.erl b/lib/kernel/test/gen_tcp_api_SUITE.erl
index 1be016444f..00c9dc5ed5 100644
--- a/lib/kernel/test/gen_tcp_api_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_api_SUITE.erl
@@ -594,10 +594,13 @@ unused_ip() ->
io:format("we = ~p, unused_ip = ~p~n", [Hent, IP]),
IP.
-unused_ip(_, _, _, 255) -> error;
+unused_ip(255, 255, 255, 255) -> error;
+unused_ip(255, B, C, D) -> unused_ip(1, B + 1, C, D);
+unused_ip(A, 255, C, D) -> unused_ip(A, 1, C + 1, D);
+unused_ip(A, B, 255, D) -> unused_ip(A, B, 1, D + 1);
unused_ip(A, B, C, D) ->
case inet:gethostbyaddr({A, B, C, D}) of
- {ok, _} -> unused_ip(A, B, C, D+1);
+ {ok, _} -> unused_ip(A + 1, B, C, D);
{error, _} -> {ok, {A, B, C, D}}
end.
diff --git a/lib/kernel/test/seq_trace_SUITE.erl b/lib/kernel/test/seq_trace_SUITE.erl
index 83a94ab087..adbcef955c 100644
--- a/lib/kernel/test/seq_trace_SUITE.erl
+++ b/lib/kernel/test/seq_trace_SUITE.erl
@@ -30,7 +30,7 @@
send/1, distributed_send/1, recv/1, distributed_recv/1,
trace_exit/1, distributed_exit/1, call/1, port/1,
match_set_seq_token/1, gc_seq_token/1, label_capability_mismatch/1,
- send_literal/1]).
+ send_literal/1,inherit_on_spawn/1,spawn_flag/1]).
%% internal exports
-export([simple_tracer/2, one_time_receiver/0, one_time_receiver/1,
@@ -53,7 +53,8 @@ all() ->
distributed_send, recv, distributed_recv, trace_exit,
old_heap_token,
distributed_exit, call, port, match_set_seq_token,
- gc_seq_token, label_capability_mismatch].
+ gc_seq_token, label_capability_mismatch,
+ inherit_on_spawn, spawn_flag].
groups() ->
[].
@@ -83,14 +84,29 @@ token_set_get(Config) when is_list(Config) ->
do_token_set_get(timestamp),
do_token_set_get(monotonic_timestamp),
do_token_set_get(strict_monotonic_timestamp).
-
+
+-define(SEQ_TRACE_SEND, 1). %(1 << 0)
+-define(SEQ_TRACE_RECEIVE, 2). %(1 << 1)
+-define(SEQ_TRACE_PRINT, 4). %(1 << 2)
+-define(SEQ_TRACE_NOW_TIMESTAMP, 8). %(1 << 3)
+-define(SEQ_TRACE_STRICT_MON_TIMESTAMP, 16). %(1 << 4)
+-define(SEQ_TRACE_MON_TIMESTAMP, 32). %(1 << 5)
+-define(SEQ_TRACE_SPAWN, 64). %(1 << 6)
+
do_token_set_get(TsType) ->
- io:format("Testing ~p~n", [TsType]),
+ BaseOpts = ?SEQ_TRACE_SEND bor
+ ?SEQ_TRACE_RECEIVE bor
+ ?SEQ_TRACE_PRINT bor
+ ?SEQ_TRACE_SPAWN,
Flags = case TsType of
- timestamp -> 15;
- strict_monotonic_timestamp -> 23;
- monotonic_timestamp -> 39
- end,
+ timestamp ->
+ BaseOpts bor ?SEQ_TRACE_NOW_TIMESTAMP;
+ strict_monotonic_timestamp ->
+ BaseOpts bor ?SEQ_TRACE_STRICT_MON_TIMESTAMP;
+ monotonic_timestamp ->
+ BaseOpts bor ?SEQ_TRACE_MON_TIMESTAMP
+ end,
+ ct:pal("Type ~p, flags = ~p~n", [TsType, Flags]),
Self = self(),
seq_trace:reset_trace(),
%% Test that initial seq_trace is disabled
@@ -102,6 +118,8 @@ do_token_set_get(TsType) ->
{print,true} = seq_trace:get_token(print),
false = seq_trace:set_token(send,true),
{send,true} = seq_trace:get_token(send),
+ false = seq_trace:set_token(spawn,true),
+ {spawn,true} = seq_trace:get_token(spawn),
false = seq_trace:set_token('receive',true),
{'receive',true} = seq_trace:get_token('receive'),
false = seq_trace:set_token(TsType,true),
@@ -466,8 +484,6 @@ call(Config) when is_list(Config) ->
1 =
erlang:trace(Self, true,
[call, set_on_spawn, {tracer, TrB(pid)}]),
- Label = 17,
- seq_trace:set_token(label, Label), % Token enters here!!
RefB = make_ref(),
Pid2B = spawn_link(
fun() ->
@@ -481,6 +497,12 @@ call(Config) when is_list(Config) ->
RefB = call_tracee_1(RefB),
Pid2B ! {self(), msg, RefB}
end),
+
+ %% The token is set *AFTER* spawning to make sure we're testing that the
+ %% token follows on send and not that it inherits on spawn.
+ Label = 17,
+ seq_trace:set_token(label, Label),
+
Pid1B ! {Self, msg, RefB},
%% The message is passed Self -> Pid1B -> Pid2B -> Self, and the
%% seq_trace token follows invisibly. Traced functions are
@@ -501,6 +523,62 @@ call(Config) when is_list(Config) ->
seq_trace:reset_trace(),
ok.
+%% The token should follow spawn, just like it follows messages.
+inherit_on_spawn(Config) when is_list(Config) ->
+ seq_trace:reset_trace(),
+ start_tracer(),
+
+ Ref = make_ref(),
+ seq_trace:set_token(label,Ref),
+ set_token_flags([send]),
+
+ Self = self(),
+ Other = spawn(fun() -> Self ! {gurka,Ref} end),
+
+ receive {gurka,Ref} -> ok end,
+ seq_trace:reset_trace(),
+
+ [{Ref,{send,_,Other,Self,{gurka,Ref}}, _Ts}] = stop_tracer(1),
+
+ ok.
+
+spawn_flag(Config) when is_list(Config) ->
+ seq_trace:reset_trace(),
+ start_tracer(),
+
+ Ref = make_ref(),
+ seq_trace:set_token(label,Ref),
+ set_token_flags([spawn]),
+
+ Self = self(),
+
+ {serial,{0,0}} = seq_trace:get_token(serial),
+
+ %% The serial number is bumped on spawning (just like message passing), so
+ %% our child should inherit a counter of 1.
+ ProcessA = spawn(fun() ->
+ {serial,{0,1}} = seq_trace:get_token(serial),
+ Self ! {a,Ref}
+ end),
+ receive {a,Ref} -> ok end,
+
+ {serial,{1,2}} = seq_trace:get_token(serial),
+
+ ProcessB = spawn(fun() ->
+ {serial,{2,3}} = seq_trace:get_token(serial),
+ Self ! {b,Ref}
+ end),
+ receive {b,Ref} -> ok end,
+
+ {serial,{3,4}} = seq_trace:get_token(serial),
+
+ seq_trace:reset_trace(),
+
+ [{Ref,{spawn,{0,1},Self,ProcessA,[]}, _Ts},
+ {Ref,{spawn,{2,3},Self,ProcessB,[]}, _Ts}] = stop_tracer(2),
+
+ ok.
+
%% Send trace messages to a port.
port(Config) when is_list(Config) ->
lists:foreach(fun (TsType) -> do_port(TsType, Config) end,
@@ -938,7 +1016,7 @@ stop_tracer(N) when is_integer(N) ->
receive
{tracerlog,Data} ->
Data
- after 1000 ->
+ after 5000 ->
{error,timeout}
end
end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 10:09:10 +0000