DO NOT SUBMIT: Unix domain sockets. From CL 1061283003.

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 83 matching lines @@
       bind(fd, &source_addr.addr, SocketAddress::GetAddrLength(source_addr)));
   if (result != 0 && errno != EINPROGRESS) {
     VOID_TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
   return Connect(fd, addr);
 }
 
 
+intptr_t Socket::CreateConnectUnix(const RawAddr& addr) {
+  intptr_t fd = Create(addr);
+  if (fd < 0) {
+    return fd;
+  }
+
+  intptr_t result = TEMP_FAILURE_RETRY(
+      connect(fd, &addr.addr, sizeof(struct sockaddr_un)));
+  if (result == 0 || errno == EINPROGRESS) {
+    return fd;
+  }
+  VOID_TEMP_FAILURE_RETRY(close(fd));
+  return -1;
+}
+
+
 intptr_t Socket::Available(intptr_t fd) {
   return FDUtils::AvailableBytes(fd);
 }
 
 
 intptr_t Socket::Read(intptr_t fd, void* buffer, intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t read_bytes = TEMP_FAILURE_RETRY(read(fd, buffer, num_bytes));
   ASSERT(EAGAIN == EWOULDBLOCK);
   if (read_bytes == -1 && errno == EWOULDBLOCK) {
@@ skipping 289 matching lines @@
 
   if (NO_RETRY_EXPECTED(listen(fd, backlog > 0 ? backlog : SOMAXCONN)) != 0) {
     VOID_TEMP_FAILURE_RETRY(close(fd));
     return -1;
   }
 
   return fd;
 }
 
 
+intptr_t ServerSocket::CreateBindListenUnix(const RawAddr& addr,
+                                            intptr_t backlog) {
+  intptr_t fd;
+
+  fd = NO_RETRY_EXPECTED(
+      socket(addr.ss.ss_family, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0));
+  if (fd < 0) return -1;
+
+  if (NO_RETRY_EXPECTED(
+          bind(fd, &addr.addr, sizeof(struct sockaddr_un))) < 0) {
+    VOID_TEMP_FAILURE_RETRY(close(fd));
+    return -1;
+  }
+
+  if (NO_RETRY_EXPECTED(listen(fd, backlog > 0 ? backlog : SOMAXCONN)) != 0) {
+    VOID_TEMP_FAILURE_RETRY(close(fd));
+    return -1;
+  }
+
+  return fd;
+}
+
+
 bool ServerSocket::StartAccept(intptr_t fd) {
   USE(fd);
   return true;
 }
 
 
 static bool IsTemporaryAcceptError(int error) {
   // On Linux a number of protocol errors should be treated as EAGAIN.
   // These are the ones for TCP/IP.
   return (error == EAGAIN) || (error == ENETDOWN) || (error == EPROTO) ||
@@ skipping 142 matching lines @@
   mreq.gr_interface = interfaceIndex;
   memmove(&mreq.gr_group, &addr.ss, SocketAddress::GetAddrLength(addr));
   return NO_RETRY_EXPECTED(
       setsockopt(fd, proto, MCAST_LEAVE_GROUP, &mreq, sizeof(mreq))) == 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)