Diff: Socket.h

Revision:

16:2d471deff212

Parent:

11:3d83c348fb8b

Child:

17:c5089d058eab

--- a/Socket.h	Mon Aug 13 09:38:00 2012 +0000
+++ b/Socket.h	Fri Mar 01 15:30:16 2013 +0000
@@ -1,85 +1,103 @@
-/* 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);
-    
-    /** Close the socket file descriptor
-     */
-    int close();
-    
-    ~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_ */
+/* 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 file descriptor
+     */
+    int close();
+    
+    ~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_ */