face: move isListening()/size() to Channel as pure virtual methods
As a side effect, this ensures that Channel cannot be instantiated.
Change-Id: I875876ddf8fc0fbb04f3e88726c708ece8106702
diff --git a/daemon/face/channel.hpp b/daemon/face/channel.hpp
index 300435c..ae3c583 100644
--- a/daemon/face/channel.hpp
+++ b/daemon/face/channel.hpp
@@ -31,16 +31,14 @@
namespace nfd {
namespace face {
-/**
- * \brief Prototype for the callback that is invoked when the face
- * is created (as a response to incoming connection or after
- * connection is established)
+class Face;
+
+/** \brief Prototype for the callback that is invoked when a face is created
+ * (in response to an incoming connection or after a connection is established)
*/
typedef function<void(const shared_ptr<Face>& newFace)> FaceCreatedCallback;
-/**
- * \brief Prototype for the callback that is invoked when the face
- * fails to be created
+/** \brief Prototype for the callback that is invoked when a face fails to be created
*/
typedef function<void(uint32_t status, const std::string& reason)> FaceCreationFailedCallback;
@@ -57,7 +55,20 @@
~Channel();
const FaceUri&
- getUri() const;
+ getUri() const
+ {
+ return m_uri;
+ }
+
+ /** \brief Returns whether the channel is listening
+ */
+ virtual bool
+ isListening() const = 0;
+
+ /** \brief Returns the number of faces in the channel
+ */
+ virtual size_t
+ size() const = 0;
protected:
void
@@ -67,12 +78,6 @@
FaceUri m_uri;
};
-inline const FaceUri&
-Channel::getUri() const
-{
- return m_uri;
-}
-
/** \brief invokes a callback when the face is closed
* \param face the face
* \param f the callback to be invoked when the face enters CLOSED state
diff --git a/daemon/face/tcp-channel.cpp b/daemon/face/tcp-channel.cpp
index 5f0f940..978f540 100644
--- a/daemon/face/tcp-channel.cpp
+++ b/daemon/face/tcp-channel.cpp
@@ -70,7 +70,7 @@
bool wantLocalFieldsEnabled,
const FaceCreatedCallback& onFaceCreated,
const FaceCreationFailedCallback& onConnectFailed,
- const time::seconds& timeout/* = time::seconds(4)*/)
+ time::nanoseconds timeout)
{
auto it = m_channelFaces.find(remoteEndpoint);
if (it != m_channelFaces.end()) {
@@ -90,12 +90,6 @@
onFaceCreated, onConnectFailed));
}
-size_t
-TcpChannel::size() const
-{
- return m_channelFaces.size();
-}
-
void
TcpChannel::createFace(ip::tcp::socket&& socket,
bool isOnDemand,
diff --git a/daemon/face/tcp-channel.hpp b/daemon/face/tcp-channel.hpp
index 9038f59..400cdf9 100644
--- a/daemon/face/tcp-channel.hpp
+++ b/daemon/face/tcp-channel.hpp
@@ -56,6 +56,18 @@
explicit
TcpChannel(const tcp::Endpoint& localEndpoint);
+ bool
+ isListening() const override
+ {
+ return m_acceptor.is_open();
+ }
+
+ size_t
+ size() const override
+ {
+ return m_channelFaces.size();
+ }
+
/**
* \brief Enable listening on the local endpoint, accept connections,
* and create faces when remote host makes a connection
@@ -71,23 +83,14 @@
int backlog = boost::asio::ip::tcp::acceptor::max_connections);
/**
- * \brief Create a face by establishing connection to remote endpoint
+ * \brief Create a face by establishing a TCP connection to \p remoteEndpoint
*/
void
connect(const tcp::Endpoint& remoteEndpoint,
bool wantLocalFieldsEnabled,
const FaceCreatedCallback& onFaceCreated,
const FaceCreationFailedCallback& onConnectFailed,
- const time::seconds& timeout = time::seconds(4));
-
- /**
- * \brief Get number of faces in the channel
- */
- size_t
- size() const;
-
- bool
- isListening() const;
+ time::nanoseconds timeout = time::seconds(4));
private:
void
@@ -125,12 +128,6 @@
boost::asio::ip::tcp::socket m_acceptSocket;
};
-inline bool
-TcpChannel::isListening() const
-{
- return m_acceptor.is_open();
-}
-
} // namespace face
} // namespace nfd
diff --git a/daemon/face/udp-channel.cpp b/daemon/face/udp-channel.cpp
index 491ad82..d22b23c 100644
--- a/daemon/face/udp-channel.cpp
+++ b/daemon/face/udp-channel.cpp
@@ -44,12 +44,6 @@
setUri(FaceUri(m_localEndpoint));
}
-size_t
-UdpChannel::size() const
-{
- return m_channelFaces.size();
-}
-
void
UdpChannel::connect(const udp::Endpoint& remoteEndpoint,
ndn::nfd::FacePersistency persistency,
diff --git a/daemon/face/udp-channel.hpp b/daemon/face/udp-channel.hpp
index b9b71a8..fe849a6 100644
--- a/daemon/face/udp-channel.hpp
+++ b/daemon/face/udp-channel.hpp
@@ -51,11 +51,17 @@
UdpChannel(const udp::Endpoint& localEndpoint,
const time::seconds& timeout);
- /**
- * \brief Get number of faces in the channel
- */
+ bool
+ isListening() const override
+ {
+ return m_socket.is_open();
+ }
+
size_t
- size() const;
+ size() const override
+ {
+ return m_channelFaces.size();
+ }
/**
* \brief Create a face by establishing connection to remote endpoint
@@ -84,9 +90,6 @@
listen(const FaceCreatedCallback& onFaceCreated,
const FaceCreationFailedCallback& onReceiveFailed);
- bool
- isListening() const;
-
private:
void
waitForNewPeer(const FaceCreatedCallback& onFaceCreated,
@@ -128,12 +131,6 @@
uint8_t m_inputBuffer[ndn::MAX_NDN_PACKET_SIZE];
};
-inline bool
-UdpChannel::isListening() const
-{
- return m_socket.is_open();
-}
-
} // namespace face
} // namespace nfd
diff --git a/daemon/face/unix-stream-channel.cpp b/daemon/face/unix-stream-channel.cpp
index e09cd98..b253a70 100644
--- a/daemon/face/unix-stream-channel.cpp
+++ b/daemon/face/unix-stream-channel.cpp
@@ -40,6 +40,7 @@
: m_endpoint(endpoint)
, m_acceptor(getGlobalIoService())
, m_socket(getGlobalIoService())
+ , m_size(0)
{
setUri(FaceUri(m_endpoint));
}
@@ -136,6 +137,10 @@
auto linkService = make_unique<GenericLinkService>();
auto transport = make_unique<UnixStreamTransport>(std::move(m_socket));
auto face = make_shared<Face>(std::move(linkService), std::move(transport));
+
+ ++m_size;
+ connectFaceClosedSignal(*face, [this] { --m_size; });
+
onFaceCreated(face);
// prepare accepting the next connection
diff --git a/daemon/face/unix-stream-channel.hpp b/daemon/face/unix-stream-channel.hpp
index 1916134..8f30db5 100644
--- a/daemon/face/unix-stream-channel.hpp
+++ b/daemon/face/unix-stream-channel.hpp
@@ -48,9 +48,14 @@
/**
* \brief UnixStreamChannel-related error
*/
- struct Error : public std::runtime_error
+ class Error : public std::runtime_error
{
- Error(const std::string& what) : std::runtime_error(what) {}
+ public:
+ explicit
+ Error(const std::string& what)
+ : std::runtime_error(what)
+ {
+ }
};
/**
@@ -64,6 +69,18 @@
~UnixStreamChannel() override;
+ bool
+ isListening() const override
+ {
+ return m_acceptor.is_open();
+ }
+
+ size_t
+ size() const override
+ {
+ return m_size;
+ }
+
/**
* \brief Enable listening on the local endpoint, accept connections,
* and create faces when a connection is made
@@ -78,9 +95,6 @@
const FaceCreationFailedCallback& onAcceptFailed,
int backlog = boost::asio::local::stream_protocol::acceptor::max_connections);
- bool
- isListening() const;
-
private:
void
accept(const FaceCreatedCallback& onFaceCreated,
@@ -95,14 +109,9 @@
unix_stream::Endpoint m_endpoint;
boost::asio::local::stream_protocol::acceptor m_acceptor;
boost::asio::local::stream_protocol::socket m_socket;
+ size_t m_size;
};
-inline bool
-UnixStreamChannel::isListening() const
-{
- return m_acceptor.is_open();
-}
-
} // namespace face
} // namespace nfd
diff --git a/daemon/face/websocket-channel.cpp b/daemon/face/websocket-channel.cpp
index cd0df70..daf362c 100644
--- a/daemon/face/websocket-channel.cpp
+++ b/daemon/face/websocket-channel.cpp
@@ -148,11 +148,5 @@
m_server.start_accept();
}
-size_t
-WebSocketChannel::size() const
-{
- return m_channelFaces.size();
-}
-
} // namespace face
} // namespace nfd
diff --git a/daemon/face/websocket-channel.hpp b/daemon/face/websocket-channel.hpp
index 99153f7..7da5647 100644
--- a/daemon/face/websocket-channel.hpp
+++ b/daemon/face/websocket-channel.hpp
@@ -53,6 +53,18 @@
explicit
WebSocketChannel(const websocket::Endpoint& localEndpoint);
+ bool
+ isListening() const override
+ {
+ return m_server.is_listening();
+ }
+
+ size_t
+ size() const override
+ {
+ return m_channelFaces.size();
+ }
+
/**
* \brief Enable listening on the local endpoint, accept connections,
* and create faces when remote host makes a connection
@@ -62,15 +74,6 @@
void
listen(const FaceCreatedCallback& onFaceCreated);
- /**
- * \brief Get number of faces in the channel
- */
- size_t
- size() const;
-
- bool
- isListening() const;
-
PUBLIC_WITH_TESTS_ELSE_PRIVATE:
/** \pre listen hasn't been invoked
*/
@@ -110,12 +113,6 @@
time::milliseconds m_pingInterval;
};
-inline bool
-WebSocketChannel::isListening() const
-{
- return m_server.is_listening();
-}
-
} // namespace face
} // namespace nfd