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authorLoïc Collignon <loic.collignon@iot.bzh>2017-03-08 14:40:24 +0100
committerRomain Forlot <romain.forlot@iot.bzh>2017-03-16 17:10:39 +0100
commitb4d0643afdb3ad69298dac22e4b3380038f301af (patch)
tree128fcd9e0a08fbda41b6dc227884d2b9981f842e /src/utils
parentcbc9252f662fe0b9353d77771e8237e09e5b8d91 (diff)
added a socket class to wrap the C socket API.
Change-Id: Id90c60caba93b65011def0cc01232a7a2d7dbac4 Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>
Diffstat (limited to 'src/utils')
-rw-r--r--src/utils/socket.cpp89
-rw-r--r--src/utils/socket.hpp46
2 files changed, 135 insertions, 0 deletions
diff --git a/src/utils/socket.cpp b/src/utils/socket.cpp
new file mode 100644
index 0000000..8badddf
--- /dev/null
+++ b/src/utils/socket.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2015, 2016 ,2017 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loïc Collignon" <loic.collignon@iot.bzh>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <unistd.h>
+#include "socket.hpp"
+
+namespace utils
+{
+ /// @brief Construct a default, invalid, socket.
+ socket_t::socket_t()
+ : socket_{INVALID_SOCKET}
+ {
+ }
+
+ /// @brief Construct a socket by moving an existing one.
+ socket_t::socket_t(socket_t&& s)
+ : socket_{s.socket_}
+ {
+ s.socket_ = INVALID_SOCKET;
+ }
+
+ /// @brief Destruct the socket.
+ socket_t::~socket_t()
+ {
+ if(socket_ != INVALID_SOCKET)
+ ::close(socket_);
+ }
+
+ /// @brief Test if socket is valid.
+ /// @return true if valid, false otherwise.
+ socket_t::operator bool() const
+ {
+ return socket_ != INVALID_SOCKET;
+ }
+
+ /// @brief Open the socket.
+ /// @param[in] domain Specifies the communications domain in which a socket is to be created.
+ /// @param[in] type Specifies the type of socket to be created.
+ /// @param[in] protocol Specifies a particular protocol to be used with the socket. Specifying a protocol of 0 causes socket() to use an unspecified default protocol appropriate for the requested socket type.
+ /// @return Upon successful completion, shall return a non-negative integer, the socket file descriptor. Otherwise, a value of -1 shall be returned and errno set to indicate the error.
+ int socket_t::open(int domain, int type, int protocol)
+ {
+ close();
+ socket_ = ::socket(domain, type, protocol);
+ return socket_;
+ }
+
+ /// @brief Close the socket.
+ /// @return 0 if success.
+ int socket_t::close()
+ {
+ return socket_ != INVALID_SOCKET ? ::close(socket_) : 0;
+ }
+
+ /// @brief Set socket option.
+ /// @return 0 if success.
+ int socket_t::setopt(int level, int optname, const void* optval, socklen_t optlen)
+ {
+ return socket_ != INVALID_SOCKET ? ::setsockopt(socket_, level, optname, optval, optlen) : 0;
+ }
+
+ /// @brief Bind the socket.
+ /// @return 0 if success.
+ int socket_t::bind(const struct sockaddr* addr, socklen_t len)
+ {
+ return socket_ != INVALID_SOCKET ? ::bind(socket_, addr, len) : 0;
+ }
+
+ /// @brief Get the file descriptor.
+ /// @return The socket's file descriptor
+ int socket_t::socket() const
+ {
+ return socket_;
+ }
+}
diff --git a/src/utils/socket.hpp b/src/utils/socket.hpp
new file mode 100644
index 0000000..e9ddf07
--- /dev/null
+++ b/src/utils/socket.hpp
@@ -0,0 +1,46 @@
+#pragma once
+
+/*
+ * Copyright (C) 2015, 2016 ,2017 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loïc Collignon" <loic.collignon@iot.bzh>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sys/socket.h>
+
+#define INVALID_SOCKET -1
+
+namespace utils
+{
+ class socket_t
+ {
+ public:
+ socket_t();
+ socket_t(const socket_t&) = delete;
+ socket_t(socket_t&&);
+ ~socket_t();
+
+ explicit operator bool() const;
+
+ int open(int domain, int type, int protocol);
+ int close();
+ int setopt(int level, int optname, const void* optval, socklen_t optlen);
+ int socket() const;
+ int bind(const struct sockaddr* addr, socklen_t len);
+
+ private:
+ int socket_;
+ };
+}
+