Added support for processEvents to Transport and Face. Removed tempReceive.
diff --git a/ndn-cpp/c/errors.c b/ndn-cpp/c/errors.c
index a5b0510..8c87d77 100644
--- a/ndn-cpp/c/errors.c
+++ b/ndn-cpp/c/errors.c
@@ -62,6 +62,8 @@
return "SocketTransport socket is not open";
case NDN_ERROR_SocketTransport_error_in_send:
return "SocketTransport error in send";
+ case NDN_ERROR_SocketTransport_error_in_poll:
+ return "SocketTransport error in poll";
case NDN_ERROR_SocketTransport_error_in_recv:
return "SocketTransport error in recv";
case NDN_ERROR_SocketTransport_error_in_close:
diff --git a/ndn-cpp/c/errors.h b/ndn-cpp/c/errors.h
index 1f9de76..f6adb08 100644
--- a/ndn-cpp/c/errors.h
+++ b/ndn-cpp/c/errors.h
@@ -39,6 +39,7 @@
NDN_ERROR_SocketTransport_cannot_connect_to_socket,
NDN_ERROR_SocketTransport_socket_is_not_open,
NDN_ERROR_SocketTransport_error_in_send,
+ NDN_ERROR_SocketTransport_error_in_poll,
NDN_ERROR_SocketTransport_error_in_recv,
NDN_ERROR_SocketTransport_error_in_close
} ndn_Error;
diff --git a/ndn-cpp/c/transport/socket-transport.c b/ndn-cpp/c/transport/socket-transport.c
index a6fcbac..2a537db 100644
--- a/ndn-cpp/c/transport/socket-transport.c
+++ b/ndn-cpp/c/transport/socket-transport.c
@@ -13,6 +13,7 @@
#include <netinet/in.h>
#include <sys/socket.h>
#include <arpa/inet.h>
+#include <poll.h>
#include "../util/ndn_memory.h"
ndn_Error ndn_SocketTransport_connect(struct ndn_SocketTransport *self, ndn_SocketType socketType, char *host, unsigned short port)
@@ -84,8 +85,36 @@
return NDN_ERROR_success;
}
+ndn_Error ndn_SocketTransport_receiveIsReady(struct ndn_SocketTransport *self, int *receiveIsReady)
+{
+ // Default to not ready.
+ *receiveIsReady = 0;
+
+ if (self->socketDescriptor < 0)
+ // The socket is not open. Just silently return.
+ return NDN_ERROR_success;
+
+ struct pollfd pollInfo[1];
+ pollInfo[0].fd = self->socketDescriptor;
+ pollInfo[0].events = POLLIN;
+
+ int pollResult = poll(pollInfo, 1, 200);
+
+ if (pollResult < 0)
+ return NDN_ERROR_SocketTransport_error_in_poll;
+ else if (pollResult == 0)
+ // Timeout, so no data ready.
+ return NDN_ERROR_success;
+ else {
+ if (pollInfo[0].revents & POLLIN)
+ *receiveIsReady = 1;
+ }
+
+ return NDN_ERROR_success;
+}
+
ndn_Error ndn_SocketTransport_receive
-(struct ndn_SocketTransport *self, unsigned char *buffer, unsigned int bufferLength, unsigned int *nBytesOut)
+ (struct ndn_SocketTransport *self, unsigned char *buffer, unsigned int bufferLength, unsigned int *nBytesOut)
{
if (self->socketDescriptor < 0)
return NDN_ERROR_SocketTransport_socket_is_not_open;
diff --git a/ndn-cpp/c/transport/socket-transport.h b/ndn-cpp/c/transport/socket-transport.h
index 0011e26..6c2da6e 100644
--- a/ndn-cpp/c/transport/socket-transport.h
+++ b/ndn-cpp/c/transport/socket-transport.h
@@ -22,18 +22,59 @@
int socketDescriptor; /**< -1 if not connected */
};
+/**
+ * Initialize the ndn_SocketTransport struct with default values for no connection yet.
+ * @param self A pointer to the ndn_SocketTransport struct.
+ */
static inline void ndn_SocketTransport_init(struct ndn_SocketTransport *self)
{
self->socketDescriptor = -1;
}
+/**
+ * Connect with TCP or UDP to the host:port.
+ * @param self A pointer to the ndn_SocketTransport struct.
+ * @param socketType SOCKET_TCP or SOCKET_UDP.
+ * @param host The host to connect to.
+ * @param port The port to connect to.
+ * @return 0 for success, else an error code.
+ */
ndn_Error ndn_SocketTransport_connect(struct ndn_SocketTransport *self, ndn_SocketType socketType, char *host, unsigned short port);
+/**
+ * Send data to the socket.
+ * @param self A pointer to the ndn_SocketTransport struct.
+ * @param data A pointer to the buffer of data to send.
+ * @param dataLength The number of bytes in data.
+ * @return 0 for success, else an error code.
+ */
ndn_Error ndn_SocketTransport_send(struct ndn_SocketTransport *self, unsigned char *data, unsigned int dataLength);
+/**
+ * Check if there is data ready on the socket to be received with ndn_SocketTransport_receive.
+ * @param self A pointer to the ndn_SocketTransport struct.
+ * @param receiveIsReady This will be set to 1 if data is ready, 0 if not.
+ * @return 0 for success, else an error code.
+ */
+ndn_Error ndn_SocketTransport_receiveIsReady(struct ndn_SocketTransport *self, int *receiveIsReady);
+
+/**
+ * Receive data from the socket. NOTE: This is a blocking call. You should first call ndn_SocketTransport_receiveIsReady
+ * to make sure there is data ready to receive.
+ * @param self A pointer to the ndn_SocketTransport struct.
+ * @param buffer A pointer to the buffer to receive the data.
+ * @param bufferLength The maximum length of buffer.
+ * @param nBytes Return the number of bytes received into buffer.
+ * @return 0 for success, else an error code.
+ */
ndn_Error ndn_SocketTransport_receive
(struct ndn_SocketTransport *self, unsigned char *buffer, unsigned int bufferLength, unsigned int *nBytes);
+/**
+ * Close the socket.
+ * @param self A pointer to the ndn_SocketTransport struct.
+ * @return 0 for success, else an error code.
+ */
ndn_Error ndn_SocketTransport_close(struct ndn_SocketTransport *self);
#ifdef __cplusplus
diff --git a/ndn-cpp/c/transport/tcp-transport.h b/ndn-cpp/c/transport/tcp-transport.h
index f0b5d0c..1860002 100644
--- a/ndn-cpp/c/transport/tcp-transport.h
+++ b/ndn-cpp/c/transport/tcp-transport.h
@@ -18,27 +18,70 @@
struct ndn_SocketTransport base;
};
+/**
+ * Initialize the ndn_TcpTransport struct with default values for no connection yet.
+ * @param self A pointer to the ndn_TcpTransport struct.
+ */
static inline void ndn_TcpTransport_init(struct ndn_TcpTransport *self)
{
ndn_SocketTransport_init(&self->base);
}
+/**
+ * Connect with TCP to the host:port.
+ * @param self A pointer to the ndn_TcpTransport struct.
+ * @param host The host to connect to.
+ * @param port The port to connect to.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_TcpTransport_connect(struct ndn_TcpTransport *self, char *host, unsigned short port)
{
return ndn_SocketTransport_connect(&self->base, SOCKET_TCP, host, port);
}
+/**
+ * Send data to the socket.
+ * @param self A pointer to the ndn_TcpTransport struct.
+ * @param data A pointer to the buffer of data to send.
+ * @param dataLength The number of bytes in data.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_TcpTransport_send(struct ndn_TcpTransport *self, unsigned char *data, unsigned int dataLength)
{
return ndn_SocketTransport_send(&self->base, data, dataLength);
}
+/**
+ * Check if there is data ready on the socket to be received with ndn_TcpTransport_receive.
+ * @param self A pointer to the ndn_TcpTransport struct.
+ * @param receiveIsReady This will be set to 1 if data is ready, 0 if not.
+ * @return 0 for success, else an error code.
+ */
+static inline ndn_Error ndn_TcpTransport_receiveIsReady(struct ndn_TcpTransport *self, int *receiveIsReady)
+{
+ return ndn_SocketTransport_receiveIsReady(&self->base, receiveIsReady);
+}
+
+/**
+ * Receive data from the socket. NOTE: This is a blocking call. You should first call ndn_SocketTransport_receiveIsReady
+ * to make sure there is data ready to receive.
+ * @param self A pointer to the ndn_TcpTransport struct.
+ * @param buffer A pointer to the buffer to receive the data.
+ * @param bufferLength The maximum length of buffer.
+ * @param nBytes Return the number of bytes received into buffer.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_TcpTransport_receive
(struct ndn_TcpTransport *self, unsigned char *buffer, unsigned int bufferLength, unsigned int *nBytes)
{
return ndn_SocketTransport_receive(&self->base, buffer, bufferLength, nBytes);
}
+/**
+ * Close the socket.
+ * @param self A pointer to the ndn_TcpTransport struct.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_TcpTransport_close(struct ndn_TcpTransport *self)
{
return ndn_SocketTransport_close(&self->base);
diff --git a/ndn-cpp/c/transport/udp-transport.h b/ndn-cpp/c/transport/udp-transport.h
index 82aee19..c9f0d55 100644
--- a/ndn-cpp/c/transport/udp-transport.h
+++ b/ndn-cpp/c/transport/udp-transport.h
@@ -18,27 +18,70 @@
struct ndn_SocketTransport base;
};
+/**
+ * Initialize the ndn_UdpTransport struct with default values for no connection yet.
+ * @param self A pointer to the ndn_UdpTransport struct.
+ */
static inline void ndn_UdpTransport_init(struct ndn_UdpTransport *self)
{
ndn_SocketTransport_init(&self->base);
}
+/**
+ * Connect with UDP to the host:port.
+ * @param self A pointer to the ndn_UdpTransport struct.
+ * @param host The host to connect to.
+ * @param port The port to connect to.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_UdpTransport_connect(struct ndn_UdpTransport *self, char *host, unsigned short port)
{
return ndn_SocketTransport_connect(&self->base, SOCKET_UDP, host, port);
}
+/**
+ * Send data to the socket.
+ * @param self A pointer to the ndn_UdpTransport struct.
+ * @param data A pointer to the buffer of data to send.
+ * @param dataLength The number of bytes in data.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_UdpTransport_send(struct ndn_UdpTransport *self, unsigned char *data, unsigned int dataLength)
{
return ndn_SocketTransport_send(&self->base, data, dataLength);
}
+/**
+ * Check if there is data ready on the socket to be received with ndn_UdpTransport_receive.
+ * @param self A pointer to the ndn_UdpTransport struct.
+ * @param receiveIsReady This will be set to 1 if data is ready, 0 if not.
+ * @return 0 for success, else an error code.
+ */
+static inline ndn_Error ndn_UdpTransport_receiveIsReady(struct ndn_UdpTransport *self, int *receiveIsReady)
+{
+ return ndn_SocketTransport_receiveIsReady(&self->base, receiveIsReady);
+}
+
+/**
+ * Receive data from the socket. NOTE: This is a blocking call. You should first call ndn_SocketTransport_receiveIsReady
+ * to make sure there is data ready to receive.
+ * @param self A pointer to the ndn_UdpTransport struct.
+ * @param buffer A pointer to the buffer to receive the data.
+ * @param bufferLength The maximum length of buffer.
+ * @param nBytes Return the number of bytes received into buffer.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_UdpTransport_receive
(struct ndn_UdpTransport *self, unsigned char *buffer, unsigned int bufferLength, unsigned int *nBytes)
{
return ndn_SocketTransport_receive(&self->base, buffer, bufferLength, nBytes);
}
+/**
+ * Close the socket.
+ * @param self A pointer to the ndn_UdpTransport struct.
+ * @return 0 for success, else an error code.
+ */
static inline ndn_Error ndn_UdpTransport_close(struct ndn_UdpTransport *self)
{
return ndn_SocketTransport_close(&self->base);