Make the event-handler handle backpreasure.

runtime/bin/socket_linux.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
 #include <errno.h>  // NOLINT
 #include <stdio.h>  // NOLINT
 #include <stdlib.h>  // NOLINT
@@ skipping 305 matching lines @@
     int optval = 1;
     VOID_TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
   }
 
   SocketAddress::SetAddrPort(addr, port);
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
           bind(fd,
                &addr->addr,
                SocketAddress::GetAddrLength(addr))) < 0) {
-    TEMP_FAILURE_RETRY_BLOCK_SIGNALS(close(fd));
+    VOID_TEMP_FAILURE_RETRY_BLOCK_SIGNALS(close(fd));
     return -1;
   }
   return fd;
 }
 
 
 static bool ShouldIncludeIfaAddrs(struct ifaddrs* ifa, int lookup_family) {
   if (ifa->ifa_addr == NULL) {
     // OpenVPN's virtual device tun0.
     return false;
@@ skipping 48 matching lines @@
                                         intptr_t port,
                                         intptr_t backlog,
                                         bool v6_only) {
   intptr_t fd;
 
   fd = TEMP_FAILURE_RETRY_BLOCK_SIGNALS(socket(
       addr.ss.ss_family, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0));
   if (fd < 0) return -1;
 
   int optval = 1;
-  TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
+  VOID_TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
       setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)));
 
   if (addr.ss.ss_family == AF_INET6) {
     optval = v6_only ? 1 : 0;
-    TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
+    VOID_TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
         setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &optval, sizeof(optval)));
   }
 
   SocketAddress::SetAddrPort(&addr, port);
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
           bind(fd,
                &addr.addr,
                SocketAddress::GetAddrLength(&addr))) < 0) {
     VOID_TEMP_FAILURE_RETRY_BLOCK_SIGNALS(close(fd));
     return -1;
@@ skipping 190 matching lines @@
   mreq.gr_interface = interfaceIndex;
   memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(setsockopt(
       fd, proto, MCAST_LEAVE_GROUP, &mreq, sizeof(mreq))) == 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)