From 949ee23d72e4412fed3059c04e395f995388a5fb Mon Sep 17 00:00:00 2001 From: Per Hedeland Date: Wed, 4 Jan 2012 10:57:59 +0100 Subject: Fix returned error from gen_tcp:accept/1,2 when running out of ports The {error, enfile} return value is badly misleading and confusing for this case, since the Posix ENFILE errno value has a well-defined meaning that has nothing to do with Erlang ports. The fix changes the return value to {error, system_limit}, which is consistent with e.g. various file(3) functions. inet:format_error/1 has also been updated to support system_limit in the same manner as file:format_error/1. --- lib/kernel/doc/src/gen_tcp.xml | 4 +++- lib/kernel/doc/src/inet.xml | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'lib/kernel/doc/src') diff --git a/lib/kernel/doc/src/gen_tcp.xml b/lib/kernel/doc/src/gen_tcp.xml index 8a5d40bb16..9f362841ce 100644 --- a/lib/kernel/doc/src/gen_tcp.xml +++ b/lib/kernel/doc/src/gen_tcp.xml @@ -235,7 +235,9 @@ do_recv(Sock, Bs) ->

Returns {ok, Socket} if a connection is established, or {error, closed} if ListenSocket is closed, or {error, timeout} if no connection is established - within the specified time. May also return a POSIX error + within the specified time, + or {error, system_limit} if all available ports in the + Erlang emulator are in use. May also return a POSIX error value if something else goes wrong, see inet(3) for possible error values.

Packets can be sent to the returned socket Socket diff --git a/lib/kernel/doc/src/inet.xml b/lib/kernel/doc/src/inet.xml index 1a05b4ba99..86950b3ecc 100644 --- a/lib/kernel/doc/src/inet.xml +++ b/lib/kernel/doc/src/inet.xml @@ -149,7 +149,7 @@ fe80::204:acff:fe17:bf38 Return a descriptive string for an error reason

Returns a diagnostic error string. See the section below - for possible Posix values and the corresponding + for possible Posix values and the corresponding strings.

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