gecko/dom/network/UDPSocketChild.cpp
Andrew McCreight 3d28d17114 Bug 1080096 - Clear UDPSocketChildBase::mSocket in ReleaseIPDLReference(). r=schien
This breaks a possible cycle between UDPSocketChild and UDPSocket.

The nulling out must be done before the Release, because the Release may destroy |this|.
2014-10-30 14:12:09 -07:00

260 lines
5.9 KiB
C++

/* 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 "UDPSocketChild.h"
#include "mozilla/unused.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/net/NeckoChild.h"
using mozilla::net::gNeckoChild;
namespace mozilla {
namespace dom {
NS_IMPL_ISUPPORTS(UDPSocketChildBase, nsIUDPSocketChild)
UDPSocketChildBase::UDPSocketChildBase()
: mIPCOpen(false)
{
}
UDPSocketChildBase::~UDPSocketChildBase()
{
}
void
UDPSocketChildBase::ReleaseIPDLReference()
{
MOZ_ASSERT(mIPCOpen);
mIPCOpen = false;
mSocket = nullptr;
this->Release();
}
void
UDPSocketChildBase::AddIPDLReference()
{
MOZ_ASSERT(!mIPCOpen);
mIPCOpen = true;
this->AddRef();
}
NS_IMETHODIMP_(MozExternalRefCountType) UDPSocketChild::Release(void)
{
nsrefcnt refcnt = UDPSocketChildBase::Release();
if (refcnt == 1 && mIPCOpen) {
PUDPSocketChild::SendRequestDelete();
return 1;
}
return refcnt;
}
UDPSocketChild::UDPSocketChild()
:mLocalPort(0)
{
}
UDPSocketChild::~UDPSocketChild()
{
}
// nsIUDPSocketChild Methods
NS_IMETHODIMP
UDPSocketChild::Bind(nsIUDPSocketInternal* aSocket,
const nsACString& aHost,
uint16_t aPort,
bool aAddressReuse,
bool aLoopback)
{
NS_ENSURE_ARG(aSocket);
mSocket = aSocket;
AddIPDLReference();
gNeckoChild->SendPUDPSocketConstructor(this, mFilterName);
SendBind(UDPAddressInfo(nsCString(aHost), aPort), aAddressReuse, aLoopback);
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::Close()
{
SendClose();
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::Send(const nsACString& aHost,
uint16_t aPort,
const uint8_t* aData,
uint32_t aByteLength)
{
NS_ENSURE_ARG(aData);
return SendDataInternal(UDPSocketAddr(UDPAddressInfo(nsCString(aHost), aPort)),
aData, aByteLength);
}
NS_IMETHODIMP
UDPSocketChild::SendWithAddr(nsINetAddr* aAddr,
const uint8_t* aData,
uint32_t aByteLength)
{
NS_ENSURE_ARG(aAddr);
NS_ENSURE_ARG(aData);
NetAddr addr;
aAddr->GetNetAddr(&addr);
return SendDataInternal(UDPSocketAddr(addr), aData, aByteLength);
}
NS_IMETHODIMP
UDPSocketChild::SendWithAddress(const NetAddr* aAddr,
const uint8_t* aData,
uint32_t aByteLength)
{
NS_ENSURE_ARG(aAddr);
NS_ENSURE_ARG(aData);
return SendDataInternal(UDPSocketAddr(*aAddr), aData, aByteLength);
}
nsresult
UDPSocketChild::SendDataInternal(const UDPSocketAddr& aAddr,
const uint8_t* aData,
const uint32_t aByteLength)
{
NS_ENSURE_ARG(aData);
FallibleTArray<uint8_t> fallibleArray;
if (!fallibleArray.InsertElementsAt(0, aData, aByteLength)) {
return NS_ERROR_OUT_OF_MEMORY;
}
InfallibleTArray<uint8_t> array;
array.SwapElements(fallibleArray);
SendOutgoingData(array, aAddr);
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::SendBinaryStream(const nsACString& aHost,
uint16_t aPort,
nsIInputStream* aStream)
{
NS_ENSURE_ARG(aStream);
OptionalInputStreamParams stream;
nsTArray<mozilla::ipc::FileDescriptor> fds;
SerializeInputStream(aStream, stream, fds);
MOZ_ASSERT(fds.IsEmpty());
SendOutgoingData(UDPData(stream), UDPSocketAddr(UDPAddressInfo(nsCString(aHost), aPort)));
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::JoinMulticast(const nsACString& aMulticastAddress,
const nsACString& aInterface)
{
SendJoinMulticast(nsCString(aMulticastAddress), nsCString(aInterface));
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::LeaveMulticast(const nsACString& aMulticastAddress,
const nsACString& aInterface)
{
SendLeaveMulticast(nsCString(aMulticastAddress), nsCString(aInterface));
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::GetLocalPort(uint16_t* aLocalPort)
{
NS_ENSURE_ARG_POINTER(aLocalPort);
*aLocalPort = mLocalPort;
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::GetLocalAddress(nsACString& aLocalAddress)
{
aLocalAddress = mLocalAddress;
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::SetFilterName(const nsACString& aFilterName)
{
if (!mFilterName.IsEmpty()) {
// filter name can only be set once.
return NS_ERROR_FAILURE;
}
mFilterName = aFilterName;
return NS_OK;
}
NS_IMETHODIMP
UDPSocketChild::GetFilterName(nsACString& aFilterName)
{
aFilterName = mFilterName;
return NS_OK;
}
// PUDPSocketChild Methods
bool
UDPSocketChild::RecvCallbackOpened(const UDPAddressInfo& aAddressInfo)
{
mLocalAddress = aAddressInfo.addr();
mLocalPort = aAddressInfo.port();
nsresult rv = mSocket->CallListenerOpened();
mozilla::unused << NS_WARN_IF(NS_FAILED(rv));
return true;
}
bool
UDPSocketChild::RecvCallbackClosed()
{
nsresult rv = mSocket->CallListenerClosed();
mozilla::unused << NS_WARN_IF(NS_FAILED(rv));
return true;
}
bool
UDPSocketChild::RecvCallbackReceivedData(const UDPAddressInfo& aAddressInfo,
const InfallibleTArray<uint8_t>& aData)
{
nsresult rv = mSocket->CallListenerReceivedData(aAddressInfo.addr(), aAddressInfo.port(),
aData.Elements(), aData.Length());
mozilla::unused << NS_WARN_IF(NS_FAILED(rv));
return true;
}
bool
UDPSocketChild::RecvCallbackError(const nsCString& aMessage,
const nsCString& aFilename,
const uint32_t& aLineNumber)
{
nsresult rv = mSocket->CallListenerError(aMessage, aFilename, aLineNumber);
mozilla::unused << NS_WARN_IF(NS_FAILED(rv));
return true;
}
} // namespace dom
} // namespace mozilla