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

runtime/bin/socket.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 "bin/io_buffer.h"
 #include "bin/isolate_data.h"
 #include "bin/dartutils.h"
 #include "bin/socket.h"
 #include "bin/thread.h"
 #include "bin/lockers.h"
@@ skipping 27 matching lines @@
 void ListeningSocketRegistry::Cleanup() {
   delete globalTcpListeningSocketRegistry;
   globalTcpListeningSocketRegistry = NULL;
 }
 
 
 Dart_Handle ListeningSocketRegistry::CreateBindListen(Dart_Handle socket_object,
                                                       RawAddr addr,
                                                       intptr_t backlog,
                                                       bool v6_only,
-                                                      bool shared) {
+                                                      bool shared,
+                                                      bool uds) {
   MutexLocker ml(ListeningSocketRegistry::mutex_);
 
-  intptr_t port = SocketAddress::GetAddrPort(addr);
+  intptr_t port = -1;
+  if (!uds) {
+    port = SocketAddress::GetAddrPort(addr);
+  }
 
   SocketsIterator it = sockets_by_port_.find(port);
   OSSocket *first_os_socket = NULL;
   if (it != sockets_by_port_.end()) {
     first_os_socket = it->second;
   }
 
   if (first_os_socket != NULL) {
     // There is already a socket listening on this port. We need to ensure
     // that if there is one also listening on the same address, it was created
@@ skipping 26 matching lines @@
       os_socket->ref_count++;
 
       // We set as a side-effect the file descriptor on the dart socket_object.
       Socket::SetSocketIdNativeField(socket_object, os_socket->socketfd);
 
       return Dart_True();
     }
   }
 
   // There is no socket listening on that (address, port), so we create new one.
-  intptr_t socketfd = ServerSocket::CreateBindListen(addr, backlog, v6_only);
-  if (socketfd == -5) {
+  intptr_t socketfd;
+  if (!uds) {
+    socketfd = ServerSocket::CreateBindListen(addr, backlog, v6_only);
+  } else {
+    socketfd = ServerSocket::CreateBindListenUnix(addr, backlog);
+  }
+  if (!uds && socketfd == -5) {
     OSError os_error(-1, "Invalid host", OSError::kUnknown);
     return DartUtils::NewDartOSError(&os_error);
   }
   if (socketfd < 0) {
     OSError error;
     return DartUtils::NewDartOSError(&error);
   }
   if (!ServerSocket::StartAccept(socketfd)) {
     OSError os_error(-1, "Failed to start accept", OSError::kUnknown);
     return DartUtils::NewDartOSError(&os_error);
   }
-  intptr_t allocated_port = Socket::GetPort(socketfd);
-  ASSERT(allocated_port > 0);
+  intptr_t allocated_port = -1;
+  if (!uds) {
+    allocated_port = Socket::GetPort(socketfd);
+    ASSERT(allocated_port > 0);
+  }
 
   OSSocket *os_socket =
       new OSSocket(addr, allocated_port, v6_only, shared, socketfd);
   os_socket->ref_count = 1;
   os_socket->next = first_os_socket;
   sockets_by_port_[allocated_port] = os_socket;
   sockets_by_fd_[socketfd] = os_socket;
 
   // We set as a side-effect the port on the dart socket_object.
   Socket::SetSocketIdNativeField(socket_object, socketfd);
@@ skipping 112 matching lines @@
   OSError error;
   if (socket >= 0) {
     Socket::SetSocketIdNativeField(Dart_GetNativeArgument(args, 0), socket);
     Dart_SetReturnValue(args, Dart_True());
   } else {
     Dart_SetReturnValue(args, DartUtils::NewDartOSError(&error));
   }
 }
 
 
+void FUNCTION_NAME(Socket_CreateConnectUnix)(Dart_NativeArguments args) {
+  RawAddr addr;
+  const char* path =
+      DartUtils::GetStringValue(Dart_GetNativeArgument(args, 1));
+  addr.un.sun_family = AF_UNIX;
+  snprintf(addr.un.sun_path, sizeof(addr.un.sun_path), "%s", path);
+  intptr_t socket = Socket::CreateConnectUnix(addr);
+  OSError error;
+  if (socket >= 0) {
+    Socket::SetSocketIdNativeField(Dart_GetNativeArgument(args, 0), socket);
+    Dart_SetReturnValue(args, Dart_True());
+  } else {
+    Dart_SetReturnValue(args, DartUtils::NewDartOSError(&error));
+  }
+}
+
+
 void FUNCTION_NAME(Socket_CreateBindDatagram)(Dart_NativeArguments args) {
   RawAddr addr;
   SocketAddress::GetSockAddr(Dart_GetNativeArgument(args, 1), &addr);
   Dart_Handle port_arg = Dart_GetNativeArgument(args, 2);
   int64_t port = DartUtils::GetInt64ValueCheckRange(port_arg, 0, 65535);
   SocketAddress::SetAddrPort(&addr, port);
   bool reuse_addr = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3));
   intptr_t socket = Socket::CreateBindDatagram(addr, reuse_addr);
   if (socket >= 0) {
     Socket::SetSocketIdNativeField(Dart_GetNativeArgument(args, 0), socket);
@@ skipping 221 matching lines @@
 
 void FUNCTION_NAME(Socket_GetRemotePeer)(Dart_NativeArguments args) {
   intptr_t socket =
       Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
   OSError os_error;
   intptr_t port = 0;
   SocketAddress* addr = Socket::GetRemotePeer(socket, &port);
   if (addr != NULL) {
     Dart_Handle list = Dart_NewList(2);
 
-    Dart_Handle entry = Dart_NewList(3);
-    Dart_ListSetAt(entry, 0, Dart_NewInteger(addr->GetType()));
-    Dart_ListSetAt(entry, 1, Dart_NewStringFromCString(addr->as_string()));
+    int type = addr->GetType();
+    if (type == SocketAddress::TYPE_UNIX) {
+      Dart_Handle entry = Dart_NewList(2);
+      Dart_ListSetAt(entry, 0, Dart_NewInteger(type));
+      Dart_ListSetAt(entry, 1, Dart_NewStringFromCString(addr->as_string()));
+      Dart_ListSetAt(list, 1, Dart_NewInteger(port));
+      Dart_ListSetAt(list, 0, entry);
+      Dart_SetReturnValue(args, list);
+      delete addr;
+    } else {
+      ASSERT(type == SocketAddress::TYPE_IPV4 ||
+             type == SocketAddress::TYPE_IPV6);
+      Dart_Handle entry = Dart_NewList(3);
+      Dart_ListSetAt(entry, 0, Dart_NewInteger(type));
+      Dart_ListSetAt(entry, 1, Dart_NewStringFromCString(addr->as_string()));
 
-    RawAddr raw = addr->addr();
-    intptr_t data_length = SocketAddress::GetAddrLength(raw);
-    Dart_Handle data = Dart_NewTypedData(Dart_TypedData_kUint8, data_length);
-    Dart_ListSetAsBytes(data, 0, reinterpret_cast<uint8_t*>(&raw), data_length);
-    Dart_ListSetAt(entry, 2, data);
+      RawAddr raw = addr->addr();
+      intptr_t data_length = SocketAddress::GetAddrLength(raw);
+      Dart_Handle data = Dart_NewTypedData(Dart_TypedData_kUint8, data_length);
+      Dart_ListSetAsBytes(
+          data, 0, reinterpret_cast<uint8_t*>(&raw), data_length);
+      Dart_ListSetAt(entry, 2, data);
 
-    Dart_ListSetAt(list, 0, entry);
-    Dart_ListSetAt(list, 1, Dart_NewInteger(port));
-    Dart_SetReturnValue(args, list);
-    delete addr;
+      Dart_ListSetAt(list, 0, entry);
+      Dart_ListSetAt(list, 1, Dart_NewInteger(port));
+      Dart_SetReturnValue(args, list);
+      delete addr;
+    }
   } else {
     Dart_SetReturnValue(args, DartUtils::NewDartOSError());
   }
 }
 
 
 void FUNCTION_NAME(Socket_GetError)(Dart_NativeArguments args) {
   intptr_t socket =
       Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
   OSError os_error;
@@ skipping 48 matching lines @@
   SocketAddress::SetAddrPort(&addr, port);
   int64_t backlog = DartUtils::GetInt64ValueCheckRange(
       Dart_GetNativeArgument(args, 3),
       0,
       65535);
   bool v6_only = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 4));
   bool shared = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 5));
 
   Dart_Handle socket_object = Dart_GetNativeArgument(args, 0);
   Dart_Handle result = ListeningSocketRegistry::Instance()->CreateBindListen(
-      socket_object, addr, backlog, v6_only, shared);
+      socket_object, addr, backlog, v6_only, shared, false);
   Dart_SetReturnValue(args, result);
 }
 
+
+void FUNCTION_NAME(ServerSocket_CreateBindListenUnix)(
+    Dart_NativeArguments args) {
+  RawAddr addr;
+  const char* path =
+      DartUtils::GetStringValue(Dart_GetNativeArgument(args, 1));
+  addr.un.sun_family = AF_UNIX;
+  snprintf(addr.un.sun_path, sizeof(addr.un.sun_path), "%s", path);
+  int64_t backlog = DartUtils::GetInt64ValueCheckRange(
+      Dart_GetNativeArgument(args, 2),
+      0,
+      65535);
+  bool shared = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3));
+
+  Dart_Handle socket_object = Dart_GetNativeArgument(args, 0);
+  Dart_Handle result = ListeningSocketRegistry::Instance()->CreateBindListen(
+      socket_object, addr, backlog, false, shared, true);
+  Dart_SetReturnValue(args, result);
+}
+
 
 void FUNCTION_NAME(ServerSocket_Accept)(Dart_NativeArguments args) {
   intptr_t socket =
       Socket::GetSocketIdNativeField(Dart_GetNativeArgument(args, 0));
   intptr_t new_socket = ServerSocket::Accept(socket);
   if (new_socket >= 0) {
     Socket::SetSocketIdNativeField(Dart_GetNativeArgument(args, 1), new_socket);
     Dart_SetReturnValue(args, Dart_True());
   } else if (new_socket == ServerSocket::kTemporaryFailure) {
     Dart_SetReturnValue(args, Dart_False());
@@ skipping 292 matching lines @@
 intptr_t Socket::GetSocketIdNativeField(Dart_Handle socket_obj) {
   intptr_t socket = 0;
   Dart_Handle err =
       Dart_GetNativeInstanceField(socket_obj, kSocketIdNativeField, &socket);
   if (Dart_IsError(err)) Dart_PropagateError(err);
   return socket;
 }
 
 }  // namespace bin
 }  // namespace dart