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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);
}
}
}
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