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-rw-r--r--lib/kernel/src/Makefile4
-rw-r--r--lib/kernel/src/erl_epmd.erl11
-rw-r--r--lib/kernel/src/erts_debug.erl9
-rw-r--r--lib/kernel/src/file.erl24
-rw-r--r--lib/kernel/src/file_io_server.erl8
-rw-r--r--lib/kernel/src/group.erl8
-rw-r--r--lib/kernel/src/kernel.app.src1
-rw-r--r--lib/kernel/src/logger_std_h.erl4
-rw-r--r--lib/kernel/src/net.erl324
-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/user.erl53
13 files changed, 391 insertions, 74 deletions
diff --git a/lib/kernel/src/Makefile b/lib/kernel/src/Makefile
index fcb599859b..88752431eb 100644
--- a/lib/kernel/src/Makefile
+++ b/lib/kernel/src/Makefile
@@ -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.
@@ -123,6 +123,7 @@ MODULES = \
logger_server \
logger_simple_h \
logger_sup \
+ net \
net_adm \
net_kernel \
os \
@@ -180,6 +181,7 @@ ERL_COMPILE_FLAGS += -Werror
endif
ERL_COMPILE_FLAGS += -I../include
+
# ----------------------------------------------------
# Targets
# ----------------------------------------------------
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 42261d371d..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(),
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index a0616da670..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
@@ -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 ->
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/kernel.app.src b/lib/kernel/src/kernel.app.src
index 8fe6bdd1ca..c2ff6b63e9 100644
--- a/lib/kernel/src/kernel.app.src
+++ b/lib/kernel/src/kernel.app.src
@@ -74,6 +74,7 @@
logger_simple_h,
logger_std_h,
logger_sup,
+ net,
net_adm,
net_kernel,
os,
diff --git a/lib/kernel/src/logger_std_h.erl b/lib/kernel/src/logger_std_h.erl
index 2b078ef091..8477a0fc93 100644
--- a/lib/kernel/src/logger_std_h.erl
+++ b/lib/kernel/src/logger_std_h.erl
@@ -457,12 +457,12 @@ maybe_ensure_file(State) ->
%% In order to play well with tools like logrotate, we need to be able
%% to re-create the file if it has disappeared (e.g. if rotated by
%% logrotate)
-ensure_file(#{fd:=Fd0,inode:=INode0,file_name:=FileName,modes:=Modes}=State) ->
+ensure_file(#{inode:=INode0,file_name:=FileName,modes:=Modes}=State) ->
case file:read_file_info(FileName,[raw]) of
{ok,#file_info{inode=INode0}} ->
State#{last_check=>timestamp()};
_ ->
- close_log_file(Fd0),
+ close_log_file(State),
case file:open(FileName,Modes) of
{ok,Fd} ->
{ok,#file_info{inode=INode}} =
diff --git a/lib/kernel/src/net.erl b/lib/kernel/src/net.erl
new file mode 100644
index 0000000000..b8ffa64043
--- /dev/null
+++ b/lib/kernel/src/net.erl
@@ -0,0 +1,324 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2019-2019. 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.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(net).
+
+%% We should really ifdef this module depending on if we actually built
+%% the system with esock support (socket and prim_net), but our doc-building
+%% can't handle the "variables" we need (USE_ESOCK). So instead, we just
+%% leave everything hanging...
+%% If one of the "hanging" functions is called when esock has been disabled,
+%% the function will through a 'notsup' error (erlang:error/1).
+
+%% Administrative and utility functions
+-export([
+ info/0,
+ command/1
+ ]).
+
+-export([
+ gethostname/0,
+ getnameinfo/1, getnameinfo/2,
+ getaddrinfo/1, getaddrinfo/2,
+
+ if_name2index/1,
+ if_index2name/1,
+ if_names/0
+ ]).
+
+%% Deprecated functions from the "old" net module
+-export([call/4,
+ cast/4,
+ broadcast/3,
+ ping/1,
+ relay/1,
+ sleep/1]).
+
+%% Should we define these here or refer to the prim_net module
+-export_type([
+ address_info/0,
+ name_info/0,
+
+ name_info_flags/0,
+ name_info_flag/0,
+ name_info_flag_ext/0,
+
+ network_interface_name/0,
+ network_interface_index/0
+ ]).
+
+
+-deprecated({call, 4, eventually}).
+-deprecated({cast, 4, eventually}).
+-deprecated({broadcast, 3, eventually}).
+-deprecated({ping, 1, eventually}).
+-deprecated({relay, 1, eventually}).
+-deprecated({sleep, 1, eventually}).
+
+
+-type name_info_flags() :: [name_info_flag()|name_info_flag_ext()].
+-type name_info_flag() :: namereqd |
+ dgram |
+ nofqdn |
+ numerichost |
+ nomericserv.
+-type name_info_flag_ext() :: idn |
+ idna_allow_unassigned |
+ idna_use_std3_ascii_rules.
+-type name_info() :: #{host := string(),
+ service := string()}.
+-type address_info() :: #{family := socket:domain(),
+ socktype := socket:type(),
+ protocol := socket:protocol(),
+ address := socket:sockaddr()}.
+-type network_interface_name() :: string().
+-type network_interface_index() :: non_neg_integer().
+
+
+%% ===========================================================================
+%%
+%% D E P R E C A T E D F U N C T I O N S
+%%
+%% ===========================================================================
+
+call(N,M,F,A) -> rpc:call(N,M,F,A).
+cast(N,M,F,A) -> rpc:cast(N,M,F,A).
+broadcast(M,F,A) -> rpc:eval_everywhere(M,F,A).
+ping(Node) -> net_adm:ping(Node).
+sleep(T) -> receive after T -> ok end.
+relay(X) -> slave:relay(X).
+
+
+%% ===========================================================================
+%%
+%% Administrative and utility API
+%%
+%% ===========================================================================
+
+-spec info() -> list().
+
+-ifdef(USE_ESOCK).
+info() ->
+ prim_net:info().
+-else.
+-dialyzer({nowarn_function, info/0}).
+info() ->
+ erlang:error(notsup).
+-endif.
+
+
+-spec command(Cmd :: term()) -> term().
+
+-ifdef(USE_ESOCK).
+command(Cmd) ->
+ prim_net:command(Cmd).
+-else.
+-dialyzer({nowarn_function, command/1}).
+command(_Cmd) ->
+ erlang:error(notsup).
+-endif.
+
+
+
+%% ===========================================================================
+%%
+%% The proper net API
+%%
+%% ===========================================================================
+
+%% ===========================================================================
+%%
+%% gethostname - Get the name of the current host.
+%%
+%%
+
+-spec gethostname() -> {ok, HostName} | {error, Reason} when
+ HostName :: string(),
+ Reason :: term().
+
+-ifdef(USE_ESOCK).
+gethostname() ->
+ prim_net:gethostname().
+-else.
+-dialyzer({nowarn_function, gethostname/0}).
+gethostname() ->
+ erlang:error(notsup).
+-endif.
+
+
+%% ===========================================================================
+%%
+%% getnameinfo - Address-to-name translation in protocol-independent manner.
+%%
+%%
+
+-spec getnameinfo(SockAddr) -> {ok, Info} | {error, Reason} when
+ SockAddr :: socket:sockaddr(),
+ Info :: name_info(),
+ Reason :: term().
+
+getnameinfo(SockAddr) ->
+ getnameinfo(SockAddr, undefined).
+
+-spec getnameinfo(SockAddr, Flags) -> {ok, Info} | {error, Reason} when
+ SockAddr :: socket:sockaddr(),
+ Flags :: name_info_flags() | undefined,
+ Info :: name_info(),
+ Reason :: term().
+
+-ifdef(USE_ESOCK).
+getnameinfo(SockAddr, [] = _Flags) ->
+ getnameinfo(SockAddr, undefined);
+getnameinfo(#{family := Fam, addr := _Addr} = SockAddr, Flags)
+ when ((Fam =:= inet) orelse (Fam =:= inet6)) andalso
+ (is_list(Flags) orelse (Flags =:= undefined)) ->
+ prim_net:getnameinfo(socket:ensure_sockaddr(SockAddr), Flags);
+getnameinfo(#{family := Fam, path := _Path} = SockAddr, Flags)
+ when (Fam =:= local) andalso (is_list(Flags) orelse (Flags =:= undefined)) ->
+ prim_net:getnameinfo(SockAddr, Flags).
+-else.
+-dialyzer({nowarn_function, getnameinfo/2}).
+getnameinfo(SockAddr, [] = _Flags) ->
+ getnameinfo(SockAddr, undefined);
+getnameinfo(#{family := Fam, addr := _Addr} = _SockAddr, Flags)
+ when ((Fam =:= inet) orelse (Fam =:= inet6)) andalso
+ (is_list(Flags) orelse (Flags =:= undefined)) ->
+ erlang:error(notsup);
+getnameinfo(#{family := Fam, path := _Path} = _SockAddr, Flags)
+ when (Fam =:= local) andalso (is_list(Flags) orelse (Flags =:= undefined)) ->
+ erlang:error(notsup).
+-endif.
+
+
+%% ===========================================================================
+%%
+%% getaddrinfo - Network address and service translation
+%%
+%% There is also a "hint" argument that we "at some point" should implement.
+
+-spec getaddrinfo(Host) -> {ok, Info} | {error, Reason} when
+ Host :: string(),
+ Info :: [address_info()],
+ Reason :: term().
+
+getaddrinfo(Host) when is_list(Host) ->
+ getaddrinfo(Host, undefined).
+
+
+-spec getaddrinfo(Host, undefined) -> {ok, Info} | {error, Reason} when
+ Host :: string(),
+ Info :: [address_info()],
+ Reason :: term()
+ ; (undefined, Service) -> {ok, Info} | {error, Reason} when
+ Service :: string(),
+ Info :: [address_info()],
+ Reason :: term()
+ ; (Host, Service) -> {ok, Info} | {error, Reason} when
+ Host :: string(),
+ Service :: string(),
+ Info :: [address_info()],
+ Reason :: term().
+
+-ifdef(USE_ESOCK).
+getaddrinfo(Host, Service)
+ when (is_list(Host) orelse (Host =:= undefined)) andalso
+ (is_list(Service) orelse (Service =:= undefined)) andalso
+ (not ((Service =:= undefined) andalso (Host =:= undefined))) ->
+ prim_net:getaddrinfo(Host, Service).
+-else.
+-dialyzer({nowarn_function, getaddrinfo/2}).
+getaddrinfo(Host, Service)
+ when (is_list(Host) orelse (Host =:= undefined)) andalso
+ (is_list(Service) orelse (Service =:= undefined)) andalso
+ (not ((Service =:= undefined) andalso (Host =:= undefined))) ->
+ erlang:error(notsup).
+-endif.
+
+
+
+
+%% ===========================================================================
+%%
+%% if_name2index - Mappings between network interface names and indexes:
+%% name -> idx
+%%
+%%
+
+-spec if_name2index(Name) -> {ok, Idx} | {error, Reason} when
+ Name :: network_interface_name(),
+ Idx :: network_interface_index(),
+ Reason :: term().
+
+-ifdef(USE_ESOCK).
+if_name2index(If) when is_list(If) ->
+ prim_net:if_name2index(If).
+-else.
+-dialyzer({nowarn_function, if_name2index/1}).
+if_name2index(If) when is_list(If) ->
+ erlang:error(notsup).
+-endif.
+
+
+
+%% ===========================================================================
+%%
+%% if_index2name - Mappings between network interface index and names:
+%% idx -> name
+%%
+%%
+
+-spec if_index2name(Idx) -> {ok, Name} | {error, Reason} when
+ Idx :: network_interface_index(),
+ Name :: network_interface_name(),
+ Reason :: term().
+
+-ifdef(USE_ESOCK).
+if_index2name(Idx) when is_integer(Idx) ->
+ prim_net:if_index2name(Idx).
+-else.
+-dialyzer({nowarn_function, if_index2name/1}).
+if_index2name(Idx) when is_integer(Idx) ->
+ erlang:error(notsup).
+-endif.
+
+
+
+%% ===========================================================================
+%%
+%% if_names - Get network interface names and indexes
+%%
+%%
+
+-spec if_names() -> Names | {error, Reason} when
+ Names :: [{Idx, If}],
+ Idx :: network_interface_index(),
+ If :: network_interface_name(),
+ Reason :: term().
+
+-ifdef(USE_ESOCK).
+if_names() ->
+ prim_net:if_names().
+-else.
+-dialyzer({nowarn_function, if_names/0}).
+if_names() ->
+ erlang:error(notsup).
+-endif.
+
+
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/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
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-23 19:21:18 +0000