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-rw-r--r--erts/preloaded/src/prim_inet.erl92
1 files changed, 68 insertions, 24 deletions
diff --git a/erts/preloaded/src/prim_inet.erl b/erts/preloaded/src/prim_inet.erl
index 21d23159f0..fa621681f3 100644
--- a/erts/preloaded/src/prim_inet.erl
+++ b/erts/preloaded/src/prim_inet.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2000-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -25,7 +25,7 @@
%% Primitive inet_drv interface
--export([open/3, fdopen/4, close/1]).
+-export([open/3, open/4, fdopen/4, close/1]).
-export([bind/3, listen/1, listen/2, peeloff/2]).
-export([connect/3, connect/4, async_connect/4]).
-export([accept/1, accept/2, async_accept/2]).
@@ -64,22 +64,31 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
open(Protocol, Family, Type) ->
- open(Protocol, Family, Type, ?INET_REQ_OPEN, []).
+ open(Protocol, Family, Type, [], ?INET_REQ_OPEN, []).
+
+open(Protocol, Family, Type, Opts) ->
+ open(Protocol, Family, Type, Opts, ?INET_REQ_OPEN, []).
fdopen(Protocol, Family, Type, Fd) when is_integer(Fd) ->
- open(Protocol, Family, Type, ?INET_REQ_FDOPEN, ?int32(Fd)).
+ open(Protocol, Family, Type, [], ?INET_REQ_FDOPEN, ?int32(Fd)).
-open(Protocol, Family, Type, Req, Data) ->
+open(Protocol, Family, Type, Opts, Req, Data) ->
Drv = protocol2drv(Protocol),
AF = enc_family(Family),
T = enc_type(Type),
try erlang:open_port({spawn_driver,Drv}, [binary]) of
S ->
- case ctl_cmd(S, Req, [AF,T,Data]) of
- {ok,_} -> {ok,S};
- {error,_}=Error ->
+ case setopts(S, Opts) of
+ ok ->
+ case ctl_cmd(S, Req, [AF,T,Data]) of
+ {ok,_} -> {ok,S};
+ {error,_}=E1 ->
+ close(S),
+ E1
+ end;
+ {error,_}=E2 ->
close(S),
- Error
+ E2
end
catch
%% The only (?) way to get here is to try to open
@@ -151,30 +160,59 @@ shutdown_pend_loop(S, N0) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
close(S) when is_port(S) ->
- unlink(S), %% avoid getting {'EXIT', S, Reason}
case subscribe(S, [subs_empty_out_q]) of
{ok, [{subs_empty_out_q,N}]} when N > 0 ->
close_pend_loop(S, N); %% wait for pending output to be sent
_ ->
- catch erlang:port_close(S),
- ok
+ close_port(S)
end.
close_pend_loop(S, N) ->
receive
{empty_out_q,S} ->
- catch erlang:port_close(S), ok
+ close_port(S)
after ?INET_CLOSE_TIMEOUT ->
case getstat(S, [send_pend]) of
{ok, [{send_pend,N1}]} ->
- if N1 =:= N -> catch erlang:port_close(S), ok;
- true -> close_pend_loop(S, N1)
+ if
+ N1 =:= N ->
+ close_port(S);
+ true ->
+ close_pend_loop(S, N1)
end;
_ ->
- catch erlang:port_close(S), ok
+ close_port(S)
end
end.
-
+
+close_port(S) ->
+ case erlang:process_info(self(), trap_exit) of
+ {trap_exit,true} ->
+ %% Ensure exit message and consume it
+ link(S),
+ %% This is still not a perfect solution.
+ %%
+ %% The problem is to close the port and consume any exit
+ %% message while not knowing if this process traps exit
+ %% nor if this process has a link to the port. Here we
+ %% just knows that this process traps exit.
+ %%
+ %% If we right here get killed for some reason that exit
+ %% signal will propagate to the port and onwards to anyone
+ %% that is linked to the port. E.g when we close a socket
+ %% that is not ours.
+ %%
+ %% The problem can be solved with lists:member on our link
+ %% list but we deem that as potentially too expensive. We
+ %% need an is_linked/1 function or guard, or we need
+ %% a port_close function that can atomically unlink...
+ catch erlang:port_close(S),
+ receive {'EXIT',S,_} -> ok end;
+ {trap_exit,false} ->
+ catch erlang:port_close(S),
+ ok
+ end.
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% BIND(insock(), IP, Port) -> {ok, integer()} | {error, Reason}
@@ -1072,13 +1110,14 @@ enc_opt(deliver) -> ?INET_LOPT_DELIVER;
enc_opt(exit_on_close) -> ?INET_LOPT_EXITONCLOSE;
enc_opt(high_watermark) -> ?INET_LOPT_TCP_HIWTRMRK;
enc_opt(low_watermark) -> ?INET_LOPT_TCP_LOWTRMRK;
-enc_opt(high_msgq_watermark) -> ?INET_LOPT_TCP_MSGQ_HIWTRMRK;
-enc_opt(low_msgq_watermark) -> ?INET_LOPT_TCP_MSGQ_LOWTRMRK;
+enc_opt(high_msgq_watermark) -> ?INET_LOPT_MSGQ_HIWTRMRK;
+enc_opt(low_msgq_watermark) -> ?INET_LOPT_MSGQ_LOWTRMRK;
enc_opt(send_timeout) -> ?INET_LOPT_TCP_SEND_TIMEOUT;
enc_opt(send_timeout_close) -> ?INET_LOPT_TCP_SEND_TIMEOUT_CLOSE;
enc_opt(delay_send) -> ?INET_LOPT_TCP_DELAY_SEND;
enc_opt(packet_size) -> ?INET_LOPT_PACKET_SIZE;
enc_opt(read_packets) -> ?INET_LOPT_READ_PACKETS;
+enc_opt(netns) -> ?INET_LOPT_NETNS;
enc_opt(raw) -> ?INET_OPT_RAW;
% Names of SCTP opts:
enc_opt(sctp_rtoinfo) -> ?SCTP_OPT_RTOINFO;
@@ -1128,13 +1167,14 @@ dec_opt(?INET_LOPT_DELIVER) -> deliver;
dec_opt(?INET_LOPT_EXITONCLOSE) -> exit_on_close;
dec_opt(?INET_LOPT_TCP_HIWTRMRK) -> high_watermark;
dec_opt(?INET_LOPT_TCP_LOWTRMRK) -> low_watermark;
-dec_opt(?INET_LOPT_TCP_MSGQ_HIWTRMRK) -> high_msgq_watermark;
-dec_opt(?INET_LOPT_TCP_MSGQ_LOWTRMRK) -> low_msgq_watermark;
+dec_opt(?INET_LOPT_MSGQ_HIWTRMRK) -> high_msgq_watermark;
+dec_opt(?INET_LOPT_MSGQ_LOWTRMRK) -> low_msgq_watermark;
dec_opt(?INET_LOPT_TCP_SEND_TIMEOUT) -> send_timeout;
dec_opt(?INET_LOPT_TCP_SEND_TIMEOUT_CLOSE) -> send_timeout_close;
dec_opt(?INET_LOPT_TCP_DELAY_SEND) -> delay_send;
dec_opt(?INET_LOPT_PACKET_SIZE) -> packet_size;
dec_opt(?INET_LOPT_READ_PACKETS) -> read_packets;
+dec_opt(?INET_LOPT_NETNS) -> netns;
dec_opt(?INET_OPT_RAW) -> raw;
dec_opt(I) when is_integer(I) -> undefined.
@@ -1232,6 +1272,7 @@ type_opt_1(send_timeout_close) -> bool;
type_opt_1(delay_send) -> bool;
type_opt_1(packet_size) -> uint;
type_opt_1(read_packets) -> uint;
+type_opt_1(netns) -> binary;
%%
%% SCTP options (to be set). If the type is a record type, the corresponding
%% record signature is returned, otherwise, an "elementary" type tag
@@ -1458,9 +1499,12 @@ type_value_2({bitenumlist,List,_}, EnumList) ->
Ls when is_list(Ls) -> true;
false -> false
end;
-type_value_2(binary,Bin) when is_binary(Bin) -> true;
-type_value_2(binary_or_uint,Bin) when is_binary(Bin) -> true;
-type_value_2(binary_or_uint,Int) when is_integer(Int), Int >= 0 -> true;
+type_value_2(binary,Bin)
+ when is_binary(Bin), byte_size(Bin) < (1 bsl 32) -> true;
+type_value_2(binary_or_uint,Bin)
+ when is_binary(Bin), byte_size(Bin) < (1 bsl 32) -> true;
+type_value_2(binary_or_uint,Int)
+ when is_integer(Int), Int >= 0 -> true;
%% Type-checking of SCTP options
type_value_2(sctp_assoc_id, X)
when X band 16#ffffffff =:= X -> true;
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-22 14:49:37 +0000