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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /ipc/unixsocket/ConnectionOrientedSocket.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'ipc/unixsocket/ConnectionOrientedSocket.cpp')
-rw-r--r--ipc/unixsocket/ConnectionOrientedSocket.cpp202
1 files changed, 202 insertions, 0 deletions
diff --git a/ipc/unixsocket/ConnectionOrientedSocket.cpp b/ipc/unixsocket/ConnectionOrientedSocket.cpp
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+++ b/ipc/unixsocket/ConnectionOrientedSocket.cpp
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+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ConnectionOrientedSocket.h"
+#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, MOZ_COUNT_DTOR
+#include "UnixSocketConnector.h"
+
+namespace mozilla {
+namespace ipc {
+
+//
+// ConnectionOrientedSocketIO
+//
+
+ConnectionOrientedSocketIO::ConnectionOrientedSocketIO(
+ MessageLoop* aConsumerLoop,
+ MessageLoop* aIOLoop,
+ int aFd, ConnectionStatus aConnectionStatus,
+ UnixSocketConnector* aConnector)
+ : DataSocketIO(aConsumerLoop)
+ , UnixSocketWatcher(aIOLoop, aFd, aConnectionStatus)
+ , mConnector(aConnector)
+ , mPeerAddressLength(0)
+{
+ MOZ_ASSERT(mConnector);
+
+ MOZ_COUNT_CTOR_INHERITED(ConnectionOrientedSocketIO, DataSocketIO);
+}
+
+ConnectionOrientedSocketIO::ConnectionOrientedSocketIO(
+ MessageLoop* aConsumerLoop,
+ MessageLoop* aIOLoop,
+ UnixSocketConnector* aConnector)
+ : DataSocketIO(aConsumerLoop)
+ , UnixSocketWatcher(aIOLoop)
+ , mConnector(aConnector)
+ , mPeerAddressLength(0)
+{
+ MOZ_ASSERT(mConnector);
+
+ MOZ_COUNT_CTOR_INHERITED(ConnectionOrientedSocketIO, DataSocketIO);
+}
+
+ConnectionOrientedSocketIO::~ConnectionOrientedSocketIO()
+{
+ MOZ_COUNT_DTOR_INHERITED(ConnectionOrientedSocketIO, DataSocketIO);
+}
+
+nsresult
+ConnectionOrientedSocketIO::Accept(int aFd,
+ const struct sockaddr* aPeerAddress,
+ socklen_t aPeerAddressLength)
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+ MOZ_ASSERT(GetConnectionStatus() == SOCKET_IS_CONNECTING);
+
+ SetSocket(aFd, SOCKET_IS_CONNECTED);
+
+ // Address setup
+ mPeerAddressLength = aPeerAddressLength;
+ memcpy(&mPeerAddress, aPeerAddress, mPeerAddressLength);
+
+ // Signal success and start data transfer
+ OnConnected();
+
+ return NS_OK;
+}
+
+nsresult
+ConnectionOrientedSocketIO::Connect()
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+ MOZ_ASSERT(!IsOpen());
+
+ struct sockaddr* peerAddress =
+ reinterpret_cast<struct sockaddr*>(&mPeerAddress);
+ mPeerAddressLength = sizeof(mPeerAddress);
+
+ int fd;
+ nsresult rv = mConnector->CreateStreamSocket(peerAddress,
+ &mPeerAddressLength,
+ fd);
+ if (NS_FAILED(rv)) {
+ // Tell the consumer thread we've errored
+ GetConsumerThread()->PostTask(
+ MakeAndAddRef<SocketEventTask>(this, SocketEventTask::CONNECT_ERROR));
+ return NS_ERROR_FAILURE;
+ }
+
+ SetFd(fd);
+
+ // calls OnConnected() on success, or OnError() otherwise
+ rv = UnixSocketWatcher::Connect(peerAddress, mPeerAddressLength);
+
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ return NS_OK;
+}
+
+void
+ConnectionOrientedSocketIO::Send(UnixSocketIOBuffer* aBuffer)
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+
+ EnqueueData(aBuffer);
+ AddWatchers(WRITE_WATCHER, false);
+}
+
+// |UnixSocketWatcher|
+
+void
+ConnectionOrientedSocketIO::OnSocketCanReceiveWithoutBlocking()
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+ MOZ_ASSERT(GetConnectionStatus() == SOCKET_IS_CONNECTED); // see bug 990984
+
+ ssize_t res = ReceiveData(GetFd());
+ if (res < 0) {
+ /* I/O error */
+ RemoveWatchers(READ_WATCHER|WRITE_WATCHER);
+ } else if (!res) {
+ /* EOF or peer shutdown */
+ RemoveWatchers(READ_WATCHER);
+ }
+}
+
+void
+ConnectionOrientedSocketIO::OnSocketCanSendWithoutBlocking()
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+ MOZ_ASSERT(GetConnectionStatus() == SOCKET_IS_CONNECTED); // see bug 990984
+ MOZ_ASSERT(!IsShutdownOnIOThread());
+
+ nsresult rv = SendPendingData(GetFd());
+ if (NS_FAILED(rv)) {
+ return;
+ }
+
+ if (HasPendingData()) {
+ AddWatchers(WRITE_WATCHER, false);
+ }
+}
+
+void
+ConnectionOrientedSocketIO::OnConnected()
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+ MOZ_ASSERT(GetConnectionStatus() == SOCKET_IS_CONNECTED);
+
+ GetConsumerThread()->PostTask(
+ MakeAndAddRef<SocketEventTask>(this, SocketEventTask::CONNECT_SUCCESS));
+
+ AddWatchers(READ_WATCHER, true);
+ if (HasPendingData()) {
+ AddWatchers(WRITE_WATCHER, false);
+ }
+}
+
+void
+ConnectionOrientedSocketIO::OnListening()
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+
+ NS_NOTREACHED("Invalid call to |ConnectionOrientedSocketIO::OnListening|");
+}
+
+void
+ConnectionOrientedSocketIO::OnError(const char* aFunction, int aErrno)
+{
+ MOZ_ASSERT(MessageLoopForIO::current() == GetIOLoop());
+
+ UnixFdWatcher::OnError(aFunction, aErrno);
+
+ // Clean up watchers, status, fd
+ Close();
+
+ // Tell the consumer thread we've errored
+ GetConsumerThread()->PostTask(
+ MakeAndAddRef<SocketEventTask>(this, SocketEventTask::CONNECT_ERROR));
+}
+
+//
+// ConnectionOrientedSocket
+//
+
+ConnectionOrientedSocket::ConnectionOrientedSocket()
+{
+ MOZ_COUNT_CTOR_INHERITED(ConnectionOrientedSocket, DataSocket);
+}
+
+ConnectionOrientedSocket::~ConnectionOrientedSocket()
+{
+ MOZ_COUNT_DTOR_INHERITED(ConnectionOrientedSocket, DataSocket);
+}
+
+}
+}