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diff --git a/tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.h b/tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.h
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+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef SOCKET_H_
+#define SOCKET_H_
+
+#include "lwip/sockets.h"
+#include "lwip/netdb.h"
+
+//DNS
+inline struct hostent *gethostbyname(const char *name) {
+ return lwip_gethostbyname(name);
+}
+
+inline int gethostbyname_r(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop) {
+ return lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop);
+}
+
+class TimeInterval;
+
+/** Socket file descriptor and select wrapper
+ */
+class Socket {
+public:
+ /** Socket
+ */
+ Socket();
+
+ /** Set blocking or non-blocking mode of the socket and a timeout on
+ blocking socket operations
+ \param blocking true for blocking mode, false for non-blocking mode.
+ \param timeout timeout in ms [Default: (1500)ms].
+ */
+ void set_blocking(bool blocking, unsigned int timeout=1500);
+
+ /** Set socket options
+ \param level stack level (see: lwip/sockets.h)
+ \param optname option ID
+ \param optval option value
+ \param socklen_t length of the option value
+ \return 0 on success, -1 on failure
+ */
+ int set_option(int level, int optname, const void *optval, socklen_t optlen);
+
+ /** Get socket options
+ \param level stack level (see: lwip/sockets.h)
+ \param optname option ID
+ \param optval buffer pointer where to write the option value
+ \param socklen_t length of the option value
+ \return 0 on success, -1 on failure
+ */
+ int get_option(int level, int optname, void *optval, socklen_t *optlen);
+
+ /** Close the socket
+ \param shutdown free the left-over data in message queues
+ */
+ int close(bool shutdown=true);
+
+ ~Socket();
+
+protected:
+ int _sock_fd;
+ int init_socket(int type);
+
+ int wait_readable(TimeInterval& timeout);
+ int wait_writable(TimeInterval& timeout);
+
+ bool _blocking;
+ unsigned int _timeout;
+
+private:
+ int select(struct timeval *timeout, bool read, bool write);
+};
+
+/** Time interval class used to specify timeouts
+ */
+class TimeInterval {
+ friend class Socket;
+
+public:
+ /** Time Interval
+ \param ms time interval expressed in milliseconds
+ */
+ TimeInterval(unsigned int ms);
+
+private:
+ struct timeval _time;
+};
+
+#endif /* SOCKET_H_ */