Diff: Socket/UDPSocket.cpp

Revision:

0:615c697c33b0

Child:

4:15b58c119a0a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/UDPSocket.cpp	Thu Sep 19 07:55:14 2013 +0000
@@ -0,0 +1,98 @@
+/* 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.
+ */
+
+#include "UDPSocket.h"
+
+#include <string>
+#include <algorithm>
+
+UDPSocket::UDPSocket() {
+
+}
+
+int UDPSocket::init(void) {
+    /* open upd socket */
+    _sock_fd = _cc3000_module->_socket.socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+    if (_sock_fd == -1) {
+#if (CC3000_DEBUG == 1)
+        printf("DEBUG: Failed to create new socket (udp).\n");
+#endif
+        return 0;
+    }
+
+    return 1;
+}
+
+// Server initialization
+int UDPSocket::bind(int port) {
+    init();
+
+    sockaddr_in localHost;
+    std::memset(&localHost, 0, sizeof(localHost));
+
+    localHost.sin_family = AF_INET;
+    localHost.sin_port = htons(port);
+    localHost.sin_addr.s_addr = htons(0);
+
+    if (_cc3000_module->_socket.bind(_sock_fd, (sockaddr *)&localHost, sizeof(localHost)) != 0) {
+#if (CC3000_DEBUG == 1)
+        printf("DEBUG: Failed to bind a socket (udp). Closing socket.\n");
+#endif
+        _cc3000_module->_socket.closesocket(_sock_fd);
+        return -1;
+    }
+    return 0;
+}
+
+// -1 if unsuccessful, else number of bytes written
+int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
+{
+    if (_sock_fd < 0) {
+        return -1;
+    }
+
+    if (!_blocking) {
+        TimeInterval timeout(_timeout);
+        if (wait_writable(timeout) != 0)
+            return 0;
+    }
+
+    return _cc3000_module->_socket.sendto(_sock_fd, packet, length, 0, (sockaddr *)&remote._remote_host, sizeof(remote._remote_host));
+}
+
+// -1 if unsuccessful, else number of bytes received
+int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
+{
+    if (_sock_fd < 0) {
+        return -1;
+    }
+
+    if (!_blocking) {
+        TimeInterval timeout(_timeout);
+        if (wait_readable(timeout) != 0) {
+            return 0;
+        }
+    }
+
+    remote.reset_address();
+    socklen_t remote_host_length = sizeof(remote._remote_host);
+
+    return _cc3000_module->_socket.recvfrom(_sock_fd, buffer, length, 0, (sockaddr *)&remote._remote_host, &remote_host_length);
+}
+
+