Commit 90d95b00 authored by Noam Postavsky's avatar Noam Postavsky

Explicitly reject :server and :nowait (Bug#31903)

* src/process.c (Fmake_network_process): Explicitly check for and
signal an error when passed both :server and :nowait non-nil.  In
Emacs 25, :nowait would be ignored in this case, but as of Emacs 26.1
this gives an error, albeit an unclear one.  Also remove obsolete
comment regarding configurations lacking non-blocking mode, the
corresponding code was removed in 2012-11-17 "Assume POSIX 1003.1-1988
or later for fcntl.h."
parent 917158f8
......@@ -3890,12 +3890,15 @@ usage: (make-network-process &rest ARGS) */)
filter = Fplist_get (contact, QCfilter);
sentinel = Fplist_get (contact, QCsentinel);
use_external_socket_p = Fplist_get (contact, QCuse_external_socket);
Lisp_Object server = Fplist_get (contact, QCserver);
bool nowait = !NILP (Fplist_get (contact, QCnowait));
if (!NILP (server) && nowait)
error ("`:server' is incompatible with `:nowait'");
/* :local ADDRESS or :remote ADDRESS */
tem = Fplist_get (contact, QCserver);
if (NILP (tem))
if (!NILP (server))
address = Fplist_get (contact, QCremote);
address = Fplist_get (contact, QClocal);
......@@ -4009,7 +4012,7 @@ usage: (make-network-process &rest ARGS) */)
if (!NILP (host) && !NILP (Fplist_get (contact, QCnowait)))
if (!NILP (host) && nowait)
ptrdiff_t hostlen = SBYTES (host);
struct req
......@@ -4154,20 +4157,13 @@ usage: (make-network-process &rest ARGS) */)
set_network_socket_coding_system (proc, host, service, name);
/* :server BOOL */
tem = Fplist_get (contact, QCserver);
if (!NILP (tem))
/* Don't support network sockets when non-blocking mode is
not available, since a blocked Emacs is not useful. */
p->is_server = true;
if (TYPE_RANGED_INTEGERP (int, tem))
p->backlog = XINT (tem);
/* :server QLEN */
p->is_server = !NILP (server);
if (TYPE_RANGED_INTEGERP (int, server))
p->backlog = XINT (server);
/* :nowait BOOL */
if (!p->is_server && socktype != SOCK_DGRAM
&& !NILP (Fplist_get (contact, QCnowait)))
if (!p->is_server && socktype != SOCK_DGRAM && nowait)
p->is_non_blocking_client = true;
bool postpone_connection = false;
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