gecko-dev/ipc/nfc/Nfc.cpp

239 строки
4.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=2 ts=8 et ft=cpp: */
/* 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/. */
/* Copyright © 2013, Deutsche Telekom, Inc. */
#include "mozilla/ipc/Nfc.h"
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/un.h>
#undef CHROMIUM_LOG
#if (defined(MOZ_WIDGET_GONK) && defined(DEBUG))
#include <android/log.h>
#define CHROMIUM_LOG(args...) __android_log_print(ANDROID_LOG_INFO, "Gonk", args)
#else
#define CHROMIUM_LOG(args...)
#endif
#include "jsfriendapi.h"
#include "mozilla/ArrayUtils.h"
#include "nsThreadUtils.h" // For NS_IsMainThread.
using namespace mozilla::ipc;
namespace {
class SendNfcSocketDataTask final : public nsRunnable
{
public:
SendNfcSocketDataTask(NfcConsumer* aConsumer, UnixSocketRawData* aRawData)
: mConsumer(aConsumer)
, mRawData(aRawData)
{ }
NS_IMETHOD Run()
{
MOZ_ASSERT(NS_IsMainThread());
if (!mConsumer ||
mConsumer->GetConnectionStatus() != SOCKET_CONNECTED) {
// Probably shuting down.
return NS_OK;
}
mConsumer->SendSocketData(mRawData.forget());
return NS_OK;
}
private:
NfcConsumer* mConsumer;
nsAutoPtr<UnixSocketRawData> mRawData;
};
} // anonymous namespace
namespace mozilla {
namespace ipc {
//
// NfcConnector
//
int
NfcConnector::Create()
{
MOZ_ASSERT(!NS_IsMainThread());
int fd = socket(AF_LOCAL, SOCK_STREAM, 0);
if (fd < 0) {
NS_WARNING("Could not open nfc socket!");
return -1;
}
if (!SetUp(fd)) {
NS_WARNING("Could not set up socket!");
}
return fd;
}
bool
NfcConnector::CreateAddr(bool aIsServer,
socklen_t& aAddrSize,
sockaddr_any& aAddr,
const char* aAddress)
{
static const size_t sNameOffset = 1;
nsDependentCString socketName("nfcd");
size_t namesiz = socketName.Length() + 1; /* include trailing '\0' */
if ((sNameOffset + namesiz) > sizeof(aAddr.un.sun_path)) {
NS_WARNING("Address too long for socket struct!");
return false;
}
memset(aAddr.un.sun_path, '\0', sNameOffset); // abstract socket
memcpy(aAddr.un.sun_path + sNameOffset, socketName.get(), namesiz);
aAddr.un.sun_family = AF_UNIX;
aAddrSize = offsetof(struct sockaddr_un, sun_path) + sNameOffset + namesiz;
return true;
}
bool
NfcConnector::SetUp(int aFd)
{
// Nothing to do here.
return true;
}
bool
NfcConnector::SetUpListenSocket(int aFd)
{
// Nothing to do here.
return true;
}
void
NfcConnector::GetSocketAddr(const sockaddr_any& aAddr,
nsAString& aAddrStr)
{
MOZ_CRASH("This should never be called!");
}
//
// NfcListenSocket
//
NfcListenSocket::NfcListenSocket(NfcSocketListener* aListener)
: mListener(aListener)
{ }
void
NfcListenSocket::OnConnectSuccess()
{
if (mListener) {
mListener->OnConnectSuccess(NfcSocketListener::LISTEN_SOCKET);
}
}
void
NfcListenSocket::OnConnectError()
{
if (mListener) {
mListener->OnConnectError(NfcSocketListener::LISTEN_SOCKET);
}
}
void
NfcListenSocket::OnDisconnect()
{
if (mListener) {
mListener->OnDisconnect(NfcSocketListener::LISTEN_SOCKET);
}
}
//
// NfcConsumer
//
NfcConsumer::NfcConsumer(NfcSocketListener* aListener)
: mListener(aListener)
{ }
void
NfcConsumer::Shutdown()
{
MOZ_ASSERT(NS_IsMainThread());
Close();
}
bool
NfcConsumer::PostToNfcDaemon(const uint8_t* aData, size_t aSize)
{
MOZ_ASSERT(!NS_IsMainThread());
UnixSocketRawData* raw = new UnixSocketRawData(aData, aSize);
nsRefPtr<SendNfcSocketDataTask> task = new SendNfcSocketDataTask(this, raw);
NS_DispatchToMainThread(task);
return true;
}
void
NfcConsumer::ReceiveSocketData(nsAutoPtr<UnixSocketBuffer>& aBuffer)
{
MOZ_ASSERT(NS_IsMainThread());
if (mListener) {
mListener->ReceiveSocketData(aBuffer);
}
}
void
NfcConsumer::OnConnectSuccess()
{
CHROMIUM_LOG("NFC: %s\n", __FUNCTION__);
if (mListener) {
mListener->OnConnectSuccess(NfcSocketListener::STREAM_SOCKET);
}
// Nothing to do here.
}
void
NfcConsumer::OnConnectError()
{
CHROMIUM_LOG("NFC: %s\n", __FUNCTION__);
if (mListener) {
mListener->OnConnectError(NfcSocketListener::STREAM_SOCKET);
}
}
void
NfcConsumer::OnDisconnect()
{
CHROMIUM_LOG("NFC: %s\n", __FUNCTION__);
if (mListener) {
mListener->OnDisconnect(NfcSocketListener::STREAM_SOCKET);
}
}
ConnectionOrientedSocketIO*
NfcConsumer::GetIO()
{
return PrepareAccept(new NfcConnector());
}
} // namespace ipc
} // namespace mozilla